bien phap thi cong m&e
DESCRIPTION
goodsTRANSCRIPT
-
7/13/2019 Bien Phap Thi Cong M&E.
1/72
THUYT MINH BIN PHP
T CHC THI CNG
I - GII THIU CHUNG.. 3
II - TNG QUAN V H THNG.....6
III - BIN PHP T CHC VN CHUYN VT T N V TR LP T..7
IV NGUN IN TM THI CNG....11
V - BIN PHP T CHC THI CNG H NG NC.....11
VI - BIN PHP T CHC THI CNG H NG GI........34
VII - BIN PHP T CHC THI CNG LP T THIT B HKK.........57
VIII - BIN PHP AN TON, PHNG CHNG CHY N V BO V MI TRNG.64
IX TIN THI CNG V BIU NHN LC....65
1. Mc ch
Mc ch ca phng php thi cng ny l m t qu trnh thi cng lp t h thng iu ho khng kh
v thng gi bn trong ta nh trn c s phi ph hp vi tiu chun k thut quy nh trong hp ng, bn
v thit k thi cng, bn v phi hp v bn v cc ng xuyn kt cu
2. Phm vi cng vic
Phm vi cng vic c m t trong phng php thi cng ny bao gm ton b vic lp t h thng
ng gi, h thng ng nc v thng gi bn trong Ta Nh, h thng ht khi v thng gi nh bp cc khu
vc hnh lang cc khu v sinh to p cu thang
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
2/72
Trang2/72
3. S cng vic lp t h thng iu ho khng kh & thng gi.
Tin hnh thi cng lp t
t yu cu
Khng tPhiu x l k thut
Nghim thu tng phn
Nghim thu bi TVGS &BQLDA
Bn giao cho BQLDA& ch u t
t yu cu
Khng tChnh sa nghim thu li
Khng t
Chnh sa nghim thu li
Khng tCn chnh nghim thu li
t yu cu
t yu cu
1. Vt t2. Bn v thit k thi cng3. Phng php thi cng
t
Vt t giao n cng trng
T vn nghim thu
T vn Ki m tra
Chuyn vt t n ni lp t
Kt ni h thng
Nghim thu h thng
Cn chnh, vn hnh h thng
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
3/72
Trang3/72
I -hp TNG QUAN V H THNG
1. Tng quan h thng lnh:
1.1- Khu nh A: khu nh A gm 8 chiller gii nhit gi(Air cooled chiller) lp c nh tng mi 20, ngoi
ra tng mi ny cn lp thm 8 bm tun hon nc lnh cho chiller v 8 bm tun hon phn phi nc lnhcho cc AHU v FCU . hn ch s ln khi ng my nn ca cc chiller, hai b m(buffer tank) c ni
vi h thng ng ng nc lnh chnh chiller. Mc khc duy tr p sut trong h thng ng ng nc
chiller, cc bnh gin n kiu kn (expansion vessel) c ni vi h thng ng ng nc chiller.
T ng ghp ca ng ng nc chiller, phn thnh bn cp ng c bm tun hon phn phn phi nc
lnh( mi cp ng gm mt ng cp nc lnh v mt ng hi nc lnh) bm nc lnh chy dc theo
cc trc thng ng cung cp cho cc AHU v FCU. Hai cp ng cung cp cho AHU, cc AHU c t
tng F20, F10 v P01. Hai cp ng cung cp cho cc FCU, t hai cp ng thng ng ny c cc nhnh r vo
mi tng cung cp cho cc FCU c lp ti cc tng.
1.2- Cc khu nh B: Gm 10 khu nh B, mi khu nh B bao gm 1 chiller gii nhit gi(Air cooled chiller)
lp c nh tng mi 10, 1 bm tun hon nc lnh cho chiller v phn phi nc lnh cho cc AHU v
FCU, 1 b m(buffer tank) c ni vi h thng ng ng nc lnh chiller hn ch s ln khi ng ca
my nn chiller. Mc khc duy tr p sut trong h thng ng ng nc chiller, 1 bnh gin n kiu kn
(expansion vessel) c ni vi h thng ng ng nc chiller.
Nc lnh sau khi c hi v t cc FCU v AHU c bm nc lnh bm n chiller, sau khi ra khi
chiller i qua b m v sau chy dc theo trc thng ng (trc thng ng gm 1 ng cp v 1 ng hinc lnh). T trc thng ng ny, c cc nhnh r vo mi tng cung cp nc lnh cho cc FCU c lp ti
cc tng.v AHU t tng P01.
2. H thng cp lnh
- Chiller gii nhit gi
- H thng bm tun hon nc lnh
- Thit b x l khng kh (AHU) v thit b trao i nhit (FCU).
- H thng ng ng cp nc lnh v cc ph kin lp t
- H thng van cn bng, van chn, li lc, van x kh, van iu chnh, van mt chiu, h thng ng
gp, cc h thng ng ni mm.
- H thng bo n, cch nhit v chng chy cc ng ng.
- Cc thit b ph, gi treo, bu lng treo.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
4/72
Trang4/72
- Cc ph kin v vt liu khc.
3. H thng thng gi v ht khi
- H thng qut cp gi ti, gi thi v thi khi trong trng c chy.
- H thng ng ng gi cp, gi hi, gi thi, h thng ng gi thi khi chu nhit cao.- H thng ng ni mm (flexible duct)
- H thng van cn bng, van iu p v van 1 chiu.
- H thng thit b phn phi gi, tiu m, ming gi cp, ming gi hi.
- H thng bo n cho ng ng gi, chng chy.
- H thng cch nhit,chng chy cho cc ng ng thng gi.
- Cc ph kin v vt liu ph khc.
4. H thng nc lnh gm:
- Chiller, AHU, FCU.
- Bm tun hon cp nc lnh.
- Cc van in trong h thng ng ng cung cp lnh.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
5/72
Trang5/72
II - BIN PHP T CHC VN CHUYN VT T, THIT B
N V TR LP T
1. Phm vi cng vic:
Xc nh c ni dung cng vic vn chuyn vt t, thit b bo m an ton, cht lng thc hin
cng trnh ng tin .
Vt t v thit b HKK u c kim tra cn thn k cng theo bn v thi cng trc khi vn chuyn
n v tr lp t.
2. Phng php vn chuyn
Tt c cc thit b, vt t v ph kin c vn chuyn t kho ca cng trng n vn thng hoc khu
vc ca cu a ln cc tng cn lp t.
Vn chuyn ng nc v ph kin n v tr lp t
+ Ph kin ca ng nc c vn chuyn bng vn thng ln tng cn lp t.
+ ng nc vn chuyn bng cu thp t trn tng mi ln tng cn lp t.
+ ng nc v ph kin c vn chuyn trong tng bng tay hay xe ko n v tr lp t.
Vn chuyn ng gi v ph kin n v tr lp t (tng t nh vn chuyn ng nc)
+ Ph kin ca ng gi c vn chuyn bng vn thng ln tng cn lp t.
+ ng gi vn chuyn bng cu thp t trn tng mi hoc vn thng ln tng cn lp t.
+ ng gi v ph kin c vn chuyn trong tng bng tay hay xe ko n v tr lp t.
Vn chuyn FCU n v tr lp t
+ FCU c vn chuyn bng vn thng ln tng cn lp t
+ FCU c vn chuyn trong tng bng tay hay xe ko n v tr lp t
Vn chuyn qut n v tr lp t
+ Qut c vn chuyn bng vn thng ln tng cn lp t.
+ Qut c vn chuyn trong tng bng tay hay xe ko n v tr lp t
Vn chuyn AHU n v tr lp t
+ AHU vn chuyn bng cu thp t trn tng mi ln tng cn lp t.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
6/72
Trang6/72
+ AHU c vn chuyn trong tng bng xe ko n v tr lp t
Vn chuyn bm n v tr lp t (tng t nh vn chuyn AHU)
+ Bm vn chuyn bng cu thp t trn tng mi ln tng cn lp t.
+ Bm c vn chuyn trong tng xe ko n v tr lp t Vn chuyn Chiller n v tr lp t
+ Chiller vn chuyn bng cu thp t trn tng mi ln tng cn lp t.
+ Chiller c vn chuyn trong tng bng tay hay xe ko n v tr lp t
Vn chuyn cc thit b vt t khc n v tr lp t (tng t nh vn chuyn AHU, ng nc)
+ Bm vn chuyn bng cu thp t trn tng mi ln tng cn lp t.
+ Bm c vn chuyn trong tng xe ko n v tr lp t
Vn thng vn chuyn
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
7/72
Trang7/72
Chi tit cu ng t di tng trt ln cc tng cn lp t ng
Chi tit cu AHU t di tng trt ln cc tng cn lp t AHU
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
8/72
Trang8/72
Chi tit cu chiller t di tng trt ln tng mi
Chi tit a chiller vo tng mi
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
9/72
Trang9/72
III - NGUN IN TM THI CNG
Ngun in thi cng c bn A cung cp cho bn nh thu thi cng ti mt ni qui nh trong mt
bng d n, v t v tr qui nh ny nh thu c in s ko ngun in n cc t in tm ca cc khu
vc, cc tng cn thi cng lp t.
IV - BIN PHP T CHC THI CNG H NG NC
A. PHNG PHP THI CNG NG:
Vi nhiu nm kinh nghim trong lnh vc thi cng lp t h thng iu ho khng kh, thng gi v cp
nhit, cho mt d n hon thnh ng tin v m bo cht lng, Nh thu chng ti lun hoch
nh cho mnh mt k hoch thi cng chi tit, quy trnh c thc hin mt cch trnh t, hp l v bt
buc mi cng trnh phi thc hin ng theo quy trnh lp.
1. Mc ch cng vic:
Xc nh c ni dung cng vic thi cng lp t bo m v k thut, cht lng thc hin cng trnh
ng tin .
- Tng on ng, ph kin c kim tra cn thn.
- ng phi c ct bng my chuyn dng: dng da lm sch bavia sau khi ct kim loi hoc my ct
quay c kh bnh mi.
- Trong qu trnh thao tc khng c lm dch chuyn ng trnh sai xt.
2. Phng php ni ren
- Phm vi: ng thp en cho h thng iu ha khng kh.
- Phng php c p dng khi kt ni thit b v ph kin ti cc v tr van in t khp ni mm van
a nng vo cc FCU, AHU nhit k p ki vi ng ng c DN 50.
- Ct ng
+ Cng tc ct ng c thc hin ti kho hoc ti v tr c d tr cho tng tng nhm thun li nht
cho cng tc thi cng.
+ Ct ng phi m bo ct vung gc.
- To ren ng
+ Dng my ren chuyn dng ren ng theo ng tiu chun kt ni ph kin.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
10/72
Trang10/72
- Kt ni
+ V sinh sch du nht, phi st, bi khi b mt ngoi ng (ren c) v b mt trong ca ph kin.
+ Sn chng g ln u ren c; sau dng dy ay qun mt lp mng ln u ren c.
+ Dng tay vn u ng vo ph kin, sau dng c l sit cht.+ Sau khi sit cht v sinh ch ni ng.
My ren ng u ct ng
Hnh 2- chi tit ren ng
3. Phng php ni hn
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
11/72
Trang11/72
- Quy trnh hn:
Hnh 3 - chi tit hn
Bng 1- C ca R,G,v t
Chiu dy (t) t < 4mm 4mm < t < 6mm 6mm < t < 16mm
Gc khe hn () 6010 6010 6010
Chiu cao mt y (R) 1/2t 1.6mm 0.8mm 1.6mm 0.8mm
Khe h chn (G) 1mm ~ 2mm 1mm ~ 2mm 1mm ~ 2mm
+ m bo ng knh ng, v sinh b mt hn kh ro, sch bi, du nht v tr hn.
+ Kim tra gc khe hn ph hp vi ng knh ng, nu gc ny khng ng phi sa li ngay.
+ t v c nh hai on ng thng hng trc khi hn.
+ ng c hn bng my hn in h quang loi AC.
+ Dng in hn c iu chnh tng ng vi cc loi que hn nh bng di y
ng knh que hn (mm) 2.5 3.2 4.0
Dng in hn (A) 70 90 90 120 100 150
+ Hn nh 3 im i vi ng 300A; hn 6 im vi ng t 350A ~ 500A; v hn 8 im vi ng
550A.
+ Vi cng tc hn bch: hn 1 im gi mt bch vung gc vi ng sau hn 3 im, 4 im cho ti khi
hon tt ng hn. ng g hn mt ngoi khng c cao qu b mt bch.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
12/72
Trang12/72
+ Tin hnh hn t trn xung di. Trong trng hp ng c cht c nh hn th c th hn t
di ln trn.
+ i vi cc ng ln c dy thnh ng ln 3mm, mi hn s c hn thnh nhiu lp, mi lp hn c
dy khong 3mm.
+ Sau khi hn xong phi v sinh sch mi hn v kim tra li mi hn nu li phi sa li ngay.
+ Ti im hn phi sch khng c g st.
+ Tt c cc ng ng hn phi c kim tra k trc khi gia cng.
+ Sau khi hon tt, v sinh v sn bo v mi hn.
- Vt liu v my hn.
+ Que hn s dng hn nh h s trnh vt t c ph duyt.
+ Que hn phi m bo cht lng v khng c m t.
- Bin php an ton.
+ Khu vc hn phi c che chn trnh ma, bi v nh hng n cc khu vc khc.
+ Khu vc hn phi c trang b bnh cha chy xch tay m bo phng chng chy n an ton.
+ Th hn phi c knh bo v, o bo h di tay, gng tay hn.
+ Khng c tin hnh hn ngoi tri khi iu kin thi tit khng cho php v nhng khu vc nguy him
c th gy chy n khi cha c bo v an ton, c th nh hng n cht lng ca mi hn.
- ng hn tiu biu:
Hnh 4 - ng hn4. Phng php ni bch
- Khp cc mt bch ch iu chnh giong ng v tr.
- Sit cht bulng, ai c trn mt bch.
- nh du v tr giao hai mt bch sau khi sit cng, sau kim tra k mi ni.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
13/72
Trang13/72
4 L 8 L 12 L 16 L
Bng 2- chi tit kch thc mt bch
2
3 4
1
5 8
7 6
12
16
10
1411
15
9
13
2
3 4
1
5 8
7 6
2
3 4
1
2
3 4
112
8
10
6
5
9
11
7
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
14/72
Trang14/72
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
15/72
Trang15/72
5. Gi treo ng.
- ng ng c treo bng h thng gi treo.
- ng ng c gn gi nh sau: S dng gi treo thp gc c nh vng chc vo tng t nht 1 v
tr / 1 tng.
- ng ng lp theo phng ngang: c c nh trn gi treo gn vo gi treo ng.
- Khong cch cc gi ng theo bng sau:
Bng 3 - Khong cch gi treo ng
T DN15 n DN100 T DN125 n D300
Khong cch gi treo
ng thngng thp 2.5 m 3.0 m
Khong cch cc gitreo c nh ng
ng thp 12.5 m
- Kch thc thanh ren:
Bng 4 - Kch thc thanh ren
ng knh ng danh ngha DN ng knh thanh ren (mm)
DN 40 8
50 DN 125 10
125 < DN 200 12200 < DN 250 16
Bng 5- Bng kch thc thp hnh cho gi ng nc lnh, Gi treo cho 2 ng song song
ng knh ng danh ngha DN Kch thc gi ng
DN 32 L-30 x 30 x 3
40 DN 50 L-40 x 40 x 4
65 DN 100 L-50 x 50 x 5
125 DN 150 L-63 x 63 x 5
ng knh ngKiu
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
16/72
Trang16/72
- i vi cc gi treo nhiu ng th dng thanh ren DN16; rng khng qu 1m; khong cch gia cc
gi ng nh bng 3
Hnh 6 - Chi tit gi treo ng
2. ng ng i trn tng
Hnh 7 - Chi tit ng ng i trn tng
Cc ng ng hu ht treo trn trn, c mt s trng hp cc ng ng chy dc theo tng khng dng
c gi treo ta dng gi ng trn tng, cc kch thc ca thp hnh nh bng di y.
Bng 6- Bng kch thc thp hnh cho gi ng nc lnh i trn tng
ng knh ng danh ngha DN Kch thc gi ng
DN 32 L-30 x 30 x 3
40 DN 50 L-40 x 40 x 4
65 DN 100 L-50 x 50 x 5
125 DN 150 L-63 x 63 x 5
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
17/72
Trang17/72
Cc gi c 3 ng tr ln s dng thp L hoc thp U sao cho ti trng ph hp.
7. Gi treo b sung.
- Ti cc im c van hoc cc ph kin ti trng nng cn treo b sung gi .
Hnh 8 Gi b sung
8. Chi tit kt ni ng nhnh vo ng chnh
Hnh 9 Chi tit hn ng nhnh vo ng chnh
* Khot l ng v hn kt ni:
- i vi cc ng ng nhnh vo cc FCU kt ni vi ng ng chnh c ng knh nh hn 2 cp
tr ln
Gi Gi
Van > DN100
Gi
300 hay nh hn
Gi gn
Gi
Van DN100
Gi
600mm hay ln
hn
Gi gn
Gi
600mm hay ln hn
Gi gn
Gi
Gi gn
Gi
300 hay nh hn
45
Gi gn
300 hay nh hn
Gi
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
18/72
Trang18/72
- Dng Oxyacetylene m l vo thn ng.
- Dng Ct 90oc c sn to co 90o
- V sinh sch l ct v Co bng my mi cm tay.
- Lp Co ct ln l khot ca thn ng, dng thc ke cn chnh vung gc vi thn ng ri hnnh v, kim tra li trc khi hn hon thin.
- Mi kt ni c b tr 3 lp hn. ng nhnh c ng knh nh hn ng knh ng chnh.
Bng 7 Bng kch thc kt ni ng nhnh vo ng chnh
ng knh
ng
ng knh ng chnh DN
nhnh DN
40 50 65 80
20
25
32
40
50
i vi cc ph kin khng tha mn iu kin ng nhnh nh hn ng chnh 2 cp tr ln thi s s dng tco bnh thng v dng phng php hn kt ni.
9. Lc cn Y
- Kim tra khong khng gian bo dng thng xuyn.
- Khi khong khng gian bo dng y, th thay i gc ca lc rc, ti a 45o
Hnh 10- iu chnh lc cn
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
19/72
Trang19/72
10. ng h p sut :
- ng h p sut c gng vo thn ng nh hnh di: gm ng h v van kho.
- T l hin th p sut lm vic cao nht khong 150% n 200%.
- p sut chn khng ca ng h l 760 mmHg (0.1 Mpa) (Ch p dng cho u ht ca bm).
Hnh 11 - Chi tit lp t ng h p lc
11. Th p cho ng ng.
- Ton b tuyn ng v mi hn trc khi th p lc phi c v sinh sch s.
- Trc khi th p cn lm th tc v mi i din ca Ban qun l d n (PMB), T vn gim st
(Coninco) n kim tra, nghim thu tng phn lp t.
Th p lc ng ng (bng nc):
- Sau khi ng c lp t xong th tin hnh th p sut.
- Mi TVGS v Ch u T chng kin th p lc.
- Bm nc vo y ng ng ng thi x gi im cao nht sau ng van x gi v dng bm
p lc nng p ln n gi tr p yu cu, p sut cn th bng 1.5 ln p sut lm vic ca ng ng.
- Nh A:
+ T tng U01 n tng 10 p sut th : 15 kg/cm2.
+ T tng 11 ln n tng 20 p sut th : 8 kg/cm2.
- Nh B1 n B10 v cc nh BB p sut th : 8 kg/cm2.
- Thi gian th p l 2 gi khng c mt p sut trong ng ng.
- Ti thi im bt u nim phong p sut lu li thng s p lc nc, nhit mi trng xung
quanh. Sau 2 gi th nghim ghi li kt qu p lc nc v nhit mi trng xung quanh. Nu
khng mt p sut th hon tt qu trnh th p.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
20/72
Trang20/72
Chi tit th x ng ( nm ngang)
Chi tit th x ng ( chiu ng)
B. SN NG NC CHILLER
Trc khi cch nhit ng v sinh sch thnh ng v sn chng r st.
V sinh b mt thnh ng cho sch.
Qut sn chng r st ln b mt thnh ng
S lng sn (Kg) cho 1 lp ln b mt thnh ng c 6 m2/Kg
S lng sn (Kg) cho 2 lp ln b mt thnh ng c 4 m2/Kg
Air bleeding
valve
Main pipe
Gate Valve
Branch pipe
Pressure gauge shall be
attached at most farthest
point of each section. All
other pipe shall be
After pipe leakage test,
drain out water.
Branch pipe
Use this
Capacity of Portable motorize pump
Spraying Irrigation
1000 r.p.m 1200
17 Suction ( L/min ) 29
15-35 Pressure ( kg/cm2 ) 10 or 20
1.5-2 Power ( HP ) 2Pressure gauge
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
21/72
Trang21/72
C. CCH NHIT NG CHILLER & NG X MY LNH
1. Phm vi cch nhit
ng nc lnh (chiller) v ng nc x my lnh v cc thit b kt ni trn ng ng.
2. Tng qut
- Vt liu cch nhit c ban qun l d n ph duyt v TVGS nghim thu trc khi lp t.
- Sau khi ng c trin khai v lp xong, th tin hnh bc cch nhit (tr nhng mi hn).
- Trc khi cch nhit ng phi c v sinh sch s.
- Lp cch nhit phi ng kch c ng.
- Cc im ni ca cch nhit phi c qun lp bng keo chuyn dng.
- Sau khi cch nhit xong th mi tin hnh bc lp chng chy (i vi khu vc chng chy)
- Sau khi th p lc xong th tin hnh bc cch nhit cc mi hn v cc ph kin trn ng ng.
- Vt liu cch nhit v qu trnh thi cng phi tun th yu cu k thut nhm m bo khng b ngng
t nc v bc bn ngoi trong cc iu kin nh sau:
Nhit trung bnh ngoi tri : tn= (30 38 )oC.
m tng i trung bnh ngoi tri : n= (70 85)%.
Nhit ca nc lnh bn trong ng tnl= (8 -14)oC.
- Ton b cc ph kin, van kho, lc cn, mt bch... u phi cch nhit ton b. Cc khe ni phi c
lm kn kht bng keo silicoll. Phn cch nhit phi c thc hin sao cho c th tho ri ng c,
gung bm v cc van kha m khng ph hng lp cch nhit.
- dy lp cch nhit cho tng c ng tun theo h s trnh c TVGS v BQL ph duyt.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
22/72
Trang22/72
3. V d v vic nn lm hay khng nn lm ca cng vic cch nhit
Nn lm theo Khng nn lm
1- Lau sch bi, du cch nhit trc khi bi
keo cch nhit
Bi keo cch nhit vo b mt tch ra y bi v du.
2- Lun lun bi keo cch nhit bng li dao Bi dy keo cch nhit v keo ng li trn b mt
3- Trnh cho khng kh lt vo trong lc bi
keo cch nhit trn b mt kt ni.
Ch dn bng keo ti ch kt ni lm cho khng kh lt
vo gia ng lnh v khng kh vy quanh.
4- Trong mi trng m t nn thng gi. Vt liu bao ngoi (bng keo nha, ci bao
ngoi gim nhit) khng cht lm cho hi m
t lt vo khe h gia vt liu bao ngoi v
cch nhit
5- S dng vt liu cch nhit ph hp vi kch
thc ca ng cn cch nhit.
Cch nhit c kch thc ln hn ng cn cch nhit
d dng cch nhit. Nhng n lm cho khng kh vokhe h gia ng lnh v cch nhit, v xy ra ngng t
gia chng.
6- Bi keo vo c hai mt ch mi ni, v i
n khi cm gic x vo thy kh.
Keo cn t khng dnh cht chn, v d b
tch ra.
Hnh 13 Cng vic lm v khng nn lm khi cch nhit
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
23/72
Trang23/72
4. Chi tit cnh nhit cho ng thng loi ln
- S dng loi tm cch nhit nh hng dn sau y
Hnh.14- Ly du v ct tm cch nhit dng cho ng ln
Hnh 15- Chi tit ca aeroflex cch nhit cho ng thng
Hnh.16- Chi tit cch nhit ti bt ng (gi ng)
1. Tm cch nhit dng hnh tr s c gic nh vi ng bng keo
3. Dn bng keo chng ln 2 m ghp
2. Bi keo vo hai mt ca mi ghp cchnhit dng hnh tr, ch kh sau dn li
ng
Ly du: S dng khoanh Cchnhit ly du cho ng ln
Ct: S dng tm cch nhit ctra theo kch thc ng ln
Gi bng thp hnh
Cng UBt ng
ng
cch nhit dng hnh tr s cgi c nh vi ng bng keo
Bi keo vo b mt ch k t n i cch nhittip xc vi b mt bt ng
Bi keo vo hai mt ghp n ica cch nhit dng hnh tr
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
24/72
Trang24/72
5. Cch nhit bng phng php lng ng nh vo trong ng cch nhit.
- Phng php lng ng cch nhit vo ng nh Hnh.17.
Hnh17 - Phng php lng ng cch nhit cho ng
6. Cch nhit bng phng php ct x dc ng cch nhit
- Phng php ct ng cch nhit theo chiu dc nh Hnh.18.
Hnh18 - Phng php cch nhit ng bng cch ct dc ng cch nhit
7. Phng php cch nhit cc ph kin
- Phng php cch nhit cc ph kin nh nh Hnh.19.
Hnh.19 - Phng php cch nhit cc ph kin
C t dc ng cch nhittheo chiu di ng
1
Lm sch, bi keoln hai mt thnh ngcch nhit
2
Khi b mt keo kh(s khng dnh) ta p2 mt m ghp dnh
li vi nhau.
43
Chcho keo kh
1
Dng dao c t vunggc vi trc ng,
2
Lu n ng cchnhit vo ng .
3
Lun ng qua ccco
4
Lm sch b mtv bi keo
5
Khi b mt keokh (s khngdnh) ta p 2 mtm ghp dnh livi nhau.
1
C t ch to cc cchnhit cho ph kin
2
Bc cc cch nhitch to sn vo phkin
3
Cch nhit co 90
4
Lm sch, bi keoln hai mt thnhng cch nhit
5
Khi b mt keokh (s khngdnh) ta p 2 mtm ghp dnh livi nhau.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
25/72
Trang25/72
8. Chi tit cch nhit cho mt bch
- Xc nh kch thc ng knh ca ng (D).
- Xc nh kch thc ng knh ngoi ca mt bch (d).
- Ct ri mt khoanh cch nhit t tm hay cun cch nhit
- o kch thc khong cch (a) gia hai khoanh cch nhit dn vo ng t ch mp ngoi.
- o kch thc chu vi (P) ca khoanh cch nhit bng tm cch nhit
- Bi keo cch nhit vo tt c cc mt, rp v p gi chng li vi nhau.
Hnh 20- Chi tit ca cch nhit mt bch
9. Chi tit cch nhit cho khp ni mm
- Tng t nh chi tit cch nhit cho mt bch
Hnh 21- Ct vt liu cch nhit v cch nhit cho khp ni mm
d: ng knh ngoi ca mt bchD: ng knh ca nga: Khong cch gia hai khoanh cch nhitdn vo ng st mt bchP: Chu vi ca khoanh cch nhit
aKt ni mt bch
ng
Cch nhit c gi c nhvi ng bng keo cch nhit
Bi keo dn cch nhit voc hai mt kt ni cch nhit
a
Pd
D
a
Flexible
Cch nhit c gi cnh vi ng bng keocch nhit cch nhit
Bi keo vo c hai mtkt ni cch nhit Kt ni mt bch
ng
a
Pd
Dd: ng knh ngoi ca mt bchD: ng knh ca nga: Khong cch gia hai khoanh cch nhitdn vo ng st mt bchP: Chu vi ca khoanh cch nhit
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
26/72
Trang26/72
10.Chi tit ca cch nhit van cng
- o ly du ng knh ng, ng knh ngoi ca mt bch v spindle housing. Xem Hnh.22
oLy du v ct tm cch nhit theo ng knh ng v mt bch lm khoanh cch nhit.
oXc nh khong cch gia hai khoanh cch nhit (f) v bc ngoi phn nh ln ca van.
oXc nh chu vi ca khoanh cch nhit (P1).
oCt tm cch nhit theo kch thc (f) v (P1) v sau xc nh ng knh (c) ca thn van (ct ra
ngoi mt na ng trn ng knh (c) bn phi v bn tri ca tm cch nhit c kch thc (f) v
(P1))
- Phn nh ra ti mt bch trn ca van, xem Hnh.24
o o khong cch nh ln (s) ti mt bch trn ca van vi khong cch ngn nht (a) v khong
cch di nht (b) cng nh chu vi (P2) ca phn trn van.
o Ly du trn tm cch nhit vi khong cch ca phn nh ln (khong ngn nht (a) v di
nht (b)) k ng trn c cng bn knh qua 5 im v ni chng li.
o Ct phn khng lin quan ra.
o Ct nghing trn mt mt ca g im cao nht.
Hnh 22- Ly du v ct tm cch nhit (phn thn van)
f
P1
P1
f
o chu vi ng P1 v khong cch2 mt bch
Chuy n i kch thc o ctrn tm cch nhit
Ct ra ngoi 2 khoanh Aeroflex(Theo ng knh ng v mt bch)
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
27/72
Trang27/72
Hnh 23-Ly du v ct tm cch nhit (phn thn van)
11.Chi tit ca cch nhit cho T (T)
Cch nhit cho T (T) cng tng t nh cch nhit cho van nhng n gin hn.
Hnh 24- Chi tit cch nhit cho van
P2
P2
o khong cch nh ra ti mtbch trn ca van, vi khongcch ngn nht (a) v di nht (b),cng nh chu vi (P2) ca mt
bch trn ca van
Ct ra phnkhng lin quan
K ng congqua 5 im
Ly du trn tm cchnhit khong cch ngnnht (a) v di nht (b)cng nh chu vi (P2) cam t bch trn ca van.
Ct nghing trnmt mt ca gim cao nht
Tm cch nhit bc ngoi van sc gi c nh bng keo
Honthin
Bi keo vo c hai mt kt ni cacch nhit v quanh than van
Bi keo xung quanh c hai ph kin vcch nhit gi cht chng li vi nhau
Bi keo t v tr 1ti v tr 4
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
28/72
Trang28/72
12.Chi tit cch nhit cho ng ph kin gim cp
Hnh25 - o cc kch thc ph kin
Hnh26 - ly du trn tm cch nhit
Hnh.27 - o, ly du v ct tm cch nhit
Hnh.28 - Qu trnh bi keo v dn ng hon thin
h
Dn cc b mt mi ni cch nhitHon thin
Bi keo ln b mt m i n i cch
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
29/72
Trang29/72
13.Chi tit cch nhit cho Co
Hnh 29 - o chu vi
Hnh 30 - o cc on cong
Hnh 31 - Qu trnh bi keo dn ng hon thin
o chu vi ngTri n khai kch thc o c trn t m cch nhit
PP
To 3 cung trn
H1 H1H2
P
H1
o chi u cao ca cungtrn bn trong
H2
o chiu cao ca cungtrn bn ngoi
To cung trn bi compa
Ni cc ng cong li sau dng dao ct
Bi keo v dn chng li Bi keo v dn chng li Hon thin
Trin khai kch thc o ctrn tm cch nhit
H1 H1H2
P
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
30/72
Trang30/72
14. Chi tit cch nhit dung cho ng xuyn sn hay tng
Hnh 32 - Chi tit ca cch nhit cho ng xuyn tng, ng xuyn sn
15.Chi tit cch nhit cho bm chiller
Hnh 33 - Cch nhit cho bm nc lnh (chiller)
Cch nhit s c dn dnhbng keo
V bc bo v
Bbm
ng cKhp ni
ubm
Ni mt bch
Cch nhit s c dn dnhbng keo
Ni mt bch
Ni mt bch
u bm
Bbm
Chi tit ca cch nhit dng cho gi ng xuyn tng hay sn
Gi ng Cng U
Thp gc
ai c
Chi tit ca cch nhit Aeroflex dng cho ng xuyn sn btng
Len khiCht chng chy
Thp V
Sn btng
Cng U
Gi ng
Tck
ng
Bi keo vo b mt ch ktni cch nhittip xc vi
b mt gi
Cch nhit c gic nh bng keo
Sleeve
Chi tit ca cch nhit dng cho ng xuyn tng
ng lng
Cch nhit
Tng
Bi keo vo b mt chkt ni cch nhit tipxc vi b mt gi
ng
Cng U
Tck
Bng khongThp L
Gi
Cch nhit c gic nh bng keo
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
31/72
Trang31/72
C. LP T H THNG NG NG THOT NC NGNG T
Tt c ng ng nc ngng khi a vo thi cng u phi m bo cc tiu chun thit k v c
bo n cch nhit m bo k thut.
Lp t ng ng thot nc ngng: ng ng trc khi a vo lp t u phi lm sch c hc
ch bi keo dn. ng ng thot nc ngng t khi lp t c dc cho nc c thot t donhanh, trnh hin tng ngng t. Trn on ng thot chnh ta lm cc l thot kh theo tiu chun Vit
Nam trnh hin tng ngng t nc trn ng ng.
D. CNG TC HON THIN
Lp ng v chi tit n u th dng quang treo hoc gi nh v ng n , cn chnh c 3 chiu
dc ngang, v cao cho tuyn ng nm ng v tr. Tin hnh chn trt cc v tr ng i qua. Nu tng
trong nh th chn bng gch l v va xi mng, nu l tng ngoi nh phi chn bng gch c v va
xi mng, nu l sn v trn b tng th phi chn bng b tng v trt li m bo phng m bo m
quan v trnh nc thm vo nh.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
32/72
Trang32/72
V - BIN PHP T CHC THI CNG H NG GI
A. TNG QUT PHNG PHP CH TO V THI CNG H NG GI
ng gi c ch to ti xng c kh REETECH da trn tiu chun DW/142. ng gi thnh phm
c vn chuyn n cng trng tp kt lp t
a. Kch thc ng gi s tun theo ti liu k thut v bn v thi cng.
b. Tt c cc ng gi vung v ng gi trn c ch to sn t tn cun xng sn xut. Trong qu trnh
ch to ti xng sn xut ng gi c kim tra. Sau khi ch to xong ng gi, phn xng phi kim
tra li kch thc thnh phm.
c. ng gi s c kim tra v nghim thu trc khi bc bo n v lp t ti cng trnh.
d. ng gi trn c cun trn bng my cun v to mc kt ni.
h. Khe h xung quanh ca ng gi xuyn qua tng s lp y bi bng khong chng chy.
m. ng gi s treo chc chn trn cu trc sn hoc khung trong to nh.
n. Ch to v lp t ng gi m bo tt c cc iu kin hot ng ca h thng.
B. NG GI VUNG
1. dy tn ch to ng gi: Danh mc b dy ca tn theo bng 8
Bng 8 - Danh mc b dy tn
dy tn (mm)Kch thc ng gi
Kch thc cnh ln nht (mm) ng c p sut thp v trung bnh
P 1000 Pa
ng c p sut cao t
1000 Pa < P 2500 Pa
Cnh ng gi 400 0.58 0.75400 < cnh ng gi 1000 0.75 0.75
1000 < cnh ng gi 1600 0.95 0.95
1600 < cnh ng gi 2500 0.95 1.15
2500 < cnh ng gi 3000 1.15 1.15
2. Qui cch kt ni :
a) Loi kt ni bng np C v mt bch ng gi theo bng 9.
Bng 9 - Loi mt bch kt ni ng gi
Kch thc ng giKch thc cnh ln nht (mm)
Loi mt bch kt ni
cnh ng gi 300 np C
300 < cnh ng gi 1200 np TDC
1200 < cnh ng gi 1600 L40 x 40 x 3
1600 < cnh ng gi L40 x 40 x 3
b) Kch thc ca bulng kt ni cho mt bch ng gi theo bng 6.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
33/72
Trang33/72
Bng 10 - Kch thc bulng
Kch thc cnh ng gi (mm) ng knh x chiu di (mm)
Nh hn hoc bng 750 M8 x 30
Ln hn 750 M8 x 30
c) Kt ni mt bch loi thp gc L :
Hnh 34 - Chi tit kt ni mt bch st gc L
d) Kt ni mt bch np TDC (Transverse Duct Connector)
- Kt ni TDC dng cho ng gi c kch thc ln hn 300mm n 1200mm.
Gp m 5mm hay hn
Chi tit ca gc mt bch st L
Mt bch
L bulong(10mm)
Gp m 5mm hay hn
inh tn hoc rt rivet
5mm
GiongVng m
ai c
Chi tit ni ng ni bch st L
Bulong M8
GcBch TDC rng30mm hoc hn
Giong ni 2u ng gi
ai c M8
Mt ct ca ni bch
A, B : Kch thc ng +5mm+C
150
mm
150
mm
150
mm
150
mm
150
mm
A
Kch thc ng + 5mm
CB
L bulong mt bch st LC nh 4 gc
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
34/72
Trang34/72
Kch thc, b dy v khong cch ca mt bch TDC theo bng 11.
Bng 11 - Kch thc, b dy v khong cch ca kt ni TDC
Kch thc ng gi
theo cnh ln nht
(mm)
Kch thc
np TDC
(ti thiu)(mm)
B dy gc
TDC
(ti thiu)(mm)
B dy np gi
(ti thiu) (mm)
Khong cch ti
a
(mm)
nh hn 750 30 1.2 1.0 1250
750 ~ 1,200 30 1.2 1.0 1250
Kch thc ca bulng kt ni mt bch theo bng 10.
Hnh 35 - Chi tit kt ni TDC
3. Gia c ng gi
a) Gia c dng thp gc loi L
- Trc tip theo chiu dc: gia c thp loi L dng cho kch thc ng ln hn 800mm m bo ng
gia mt trong hoc mt ngoi ca ng gi.
- Kch thc thp loi L dng gia c theo bng 8, Chi tit gia c tng cng nh hnh 36
Bng 12 - Kch thc thp loi L dng gia c (Trc tip theo chiu dc)
Kch thc ng gi, Cnh di nht (mm) Kch thc ca thp gc (mm) S ng gia c
1000 ~ 1500 L30 x 30 x 2.5 1 ng ti tm
1500 ~ 2200 L30 x 30 x 2.5 2 ng chia u tm
Ln hn 2,200 L30 x 30 x 2.5 3 ng chia u tm
A B C
A
B
C
Np TDC
A: 150mm hoc nhhnB: 200mm hoc nhhnC: 150mm hoc lnhn
C
C
ng
Mi ni gc kiu TDC
ng
Np TDC Giong m kn
Gc TDC
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
35/72
Trang35/72
Hnh.36 - Chi tit gia c ng gi bng thp gc loi L
b) Phng php gia c to gn
- Chiu rng hay chiu cao ca ng gi l 450mm hoc ln hn th s c gia c vi khong gia c t
trc gn l 300mm. Chi tit gia c gn tng cng nh hnh 37.
- Nu cc ng gi gim c chiu rng W bn u gim nh hn 750mm th khng tng cng dc.
Hnh.37 - Chi tit ca gn tng cng
Gn tng cng su khong 3mm, rng 10mm.
B B B B B B
Ghi ch B 250mm
Gn tng cng B B B B
Rib
B
B
B
B
Gn
30mm hoc nhhn
A
900mm
900mm
900mm
B900mm
B
Mt bch
B B
Chi tit A
Chi titlA
Rivet
Thp
Thp gc L gia c b mt trong
A
:Np TDC < 1200mmMt bch < 1,200mm
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
36/72
Trang36/72
4. Cu to cc mi ghp thn ng gi
- Nhng ng ni gc theo chiu dc: mi ghp thn ng gi (Pittsburgh Lock)
- Khi kch thc ng gi hay ph kin c kch thc vt qu kh tn, hoc trong trng hp c bit cn
phi ni trn thn ng, mi ni c th nm bt k v tr no trn chiu rng hoc chiu cao nhng trnh ch
m l ng nhnh.
Hnh 38 - Chi tit ca ghp ni gc v dc thn ng gi
Hnh 39 - Chi tit v tr tng i mi ni dng cho ng thng
Hnh 40 - Chi tit v tr ghp n dng cho ph kin v gim cp
5. Ch to co ng gi
V tr ca mi ni dng cho ng gi thng
ng gi
V tr mi ni theo chiu ngang V tr mi ni chiu dc
ng
Mi ni theo chiu ngang
Mi ghp gc ng gi
5mm
10-15mm
7-10mm
Hng gi
Mi ghp dc thn ng gi
ng
ngng
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
37/72
Trang37/72
Ch to co ng gi nh sau:
- Co ng gi c ch to theo kch thc bn v thit k c ph duyt, ph hp cho vic lp t
ca tng khu vc.
- i vi cc co ngn s lp thm cc cnh hng dng theo hng dn DW/142
- Cnh hng dng cng c lp cho co vung nh hnh 42, 43 di y
Hnh. 41 - Chi tit ca co ng gi Hnh 42 - Co ng gi vung c hng dng
S ca cnh hng dng N=(6H/W)-1
r
ng tm
W
Khung cnh hngdng
150mm
P
P
P
Hng gi
H
H150mm
W
P
A
A
2A
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
38/72
Trang38/72
Khong cch gia cc cnh A=H/(N+1)
Bc gia 2 cnh hng dng P=1.41A
Hnh 43- Chi tit ca cnh hng dng
6. Cu to ghp ng gi nhnh.
Ch to ng gi nhnh nh hnh sau
Hnh 44 - Chi tit ch to ng gi nhnh
C. NG GI TRN :
1. B dy ng gi trn
- B dy tn theo bng 13.
- Kch thc ca ng gi l kch thc trong cng 2mm (0~+2mm).
Bng 13 - Danh mc b dy ng gi trn
ng knh ng gi trn (mm) dy tn
(mm)
Nh hn 700 0.58
700 < ng knh ng 900 0.75
900 < ng knh ng 1500 0.95
2. Chi tit ni ng gi trn
Chi tit ni ng nhnh tndy 0.75mm v mng hn
ng chnh
Silicon lmkn
10 -15mm
W
L
C
L>0.3W, hay bng 150mm
Hng Hng
Hng giChi tit ni nhnh tn dy
0.95mm v dy hn
Rivet
St L 30 x 30,Bulong, ai M8
Gp m 5mm hoc
Silicon
ng
ngnhnh
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
39/72
Trang39/72
Bng 14 - on ni ng gi trn
ng knh ng gi trn (mm)u ni S
(mm)
dy tn
(mm)
Nh hn 700 60 0.75
700 < ng knh ng 900 80 0.75900 < ng knh ng 1500 100 0.95
3.Ch to v lp ng gi trn
- Co ng gi c ch to theo kch thc bn v thit k c ph duyt, ph hp cho vic lp t
ca tng khu vc.
- Hnh 45 a ra cc khong cch ti thiu lp ph kin k nhau.
Ch : Hnh dng v kch thc ng gi nhnh thng c th hin trong bn v thi cng
Hnh 45 - Chi tit ng gi nhnh thng
D. NG GI CHNG CHY
- ng gi chng chy s s dng vt liu tm chng chy ch to.
10mm
S
on ni ng
ng gi
S
ng gi
Silicon lm
kn
Rivet Rivet
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
40/72
Trang40/72
- Vt liu tm chng chy s c trnh BQLDA v TVGS ph duyt.
- Cc ng gi chng chy s c ct v lp ghp vi nhau bng vt xoy, theo ng kch thc ca bn v ph
duyt.
- Gia cc mi ni s dng keo chng chy bi kn nhm khng cho r r gi.
- ng gi chng chy c lp t tng t nh ng gi vung.
- Cc ng gi i ngang qua cc khu vc cn chng chy s c bc thm bn ngoi 1 lp tm chng chy.
Hnh 46 Hnh lp t ng gi bng tm chng chy
E. CCH NHIT NG GI
1. Phm vi dng cch nhit
- H thng ng ng gi iu ha khng kh (ng gi cp v ng gi hi)
2. Phng php cch nhit ng gi
- Cc vt liu s dng c ph duyt
ng gi vt liutm chng chy
Vt xoy
Tm lin ktcc on ng
Gi ng
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
41/72
Trang41/72
- ng ng gi HKK s c cch nhit bi bng thy tinh c tm nhm bao quanh mt ngoi, b
dy: 50mm, t trng: 32kg/m3, nhm dn nhit nhit trung bnh l 500C vi h s dn nhit
lambda = 0.044W/m0K.
- Dng keo chuyn dng dn inh ln ng gi theo qui cch sau: Khong cch gia cc inh dn ln
b mt ng gi gi lp cch nhit nh hn hay bng 250mm. chiu di inh l 75mm
- Ti mi ghp gia hai tm len thy tinh cch nhit s khng c khe h. Cc mi ghp ny s khng
trng nhau.
- Khi cch nhit xong ti ng ghp ca tm len thy tinh s c dn kn bng bng keo nhm.
Hnh 47 - Phng php cch nhit dng cho ng gi
Hnh 48 - inh dn cch nhit ng gi v vng m
24mm
24mm
24mm
inh dn cch nhit ng giVng m
LGhi ch:L = 75mm (B dy len cch nhit l 50mm)
= 1.6mm
Kch thc tri rng dng ct len:
B dy ca len ng gi trn ng gi vung
50mm P + 305mm P + 254mm
P: Chu vi ng gi
Bng keo nhm
Vng mng gi
AA
inh dnA 250mm
Tm nhm bao quanh mt ngoi
Bng thy tinh cch nhitdng cho ng gi HKK
250mm
Duct
Bng keo bc
Tm nhm bao quanh mt ngoi
Vng m
Len thy tinh cch nhitdng cho ng gi HKK
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
42/72
Trang42/72
Hnh 49 - Phng php cch nhit mi ni mt bch v TDC
100mm60mm
pvo
p vo
Ni mt bch
50mm100mm
ng
Ni TDC
50mm100mm
Mi ni mt bch hay TDCinh dn cch nhit v vng m Bng keo nhm
Len thy tinh cch nhit dng cho ng gi
25mm
50mm
60mm
60mm 60mm100mm
Keo dn inh cch
Vng m
Len thy tinh cch nhit dng cho ng gi
Len thy tinh cch nhit dng cho ng gi
Bng keo bc
Bng keo nhm
Len thy tinh cch nhitdng cho ng gi HKK
Len thy tinh cch nhit dng cho ng gi
Len thy tinh cch nhitdng cho ng gi HKK
Bng keo bcVng m
Tm nhm bao quanh mt
Tm nhm bao quanh mt
Tm nhm bao quanh mt
Keo dn inh cch
ng
Tm nhm bao quanh mt
Vng m
Bng keo nhm
Nhn trn xung
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
43/72
Trang43/72
Hnh 50 - Nhng chi tit cch nhit dng cho ng gi trn xuyn sn
Hnh 51- Nhng chi tit cch nhit dng cho ng gi ch nht xuyn sn
ng gi trn
Thp L
Tck
Nh phng php cch nhitcho mt bch hay TDC
Mt bch hay TDC
Sn btng
Bng khongng gi cp (B dy: 50mm)
Cht bo v chng chy (dngcho kh vc chng chy)
FD
Len thy tinh cch nhit bn ngoing gi s c gi c nh vi nggi bng nhng inh dn cch nhitv vng m
Thng sn
ng gi ch nht
FD
Len thy tinh cch nhit bn ngoing gi s c gi c nh vi nggi bng nhng inh dn cch nhitv vng m
Bng khongng gi cp (B dy: 50mm)
Cht bo v chng chy (dngcho kh vc chng chy)
Mt bch hay TDC
Sn btng
Thp L
Thng sn
Nh phng php cch nhicho mt bch hay TDC
Tck
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
44/72
Trang44/72
Hnh 52 - Chi tit cch nhit ng gi trn xuyn tng
Hnh 53 - Chi tit cch nhit ng gi vung xuyn tng
Ty treo
FD Tng
L xuyn tng
Sn btng
Nh phng php cchnhit cho mt bch hayTDC
Bng khongng gi cp (B dy: 50mm)
Len thy tinh cch nhit bn ngoing gi s c gi c nh vi nggi bng nhng inh dn cch nhitv vng m
Cht bo v chng chy (dng
cho kh vc chng chy)
Mt bch hay TDC
Tck
ng gi trn
Ty treo
Tck
Tng
FD ng gi
Sn btng
Nh phng php cch nhitcho mt bch hay TDC
Mt bch hay TDC
Len thy tinh cch nhit bn ngoing gi s c gi c nh ving gi bng nhng inh dn cchnhit v vng m
L thng tng
Bng khongng gi cp (B dy: 50mm)
Cht bo v chng chy(dng cho kh vcchng chy)
Ch t
t c
ch nh
t ty treo
Sn btng
Ty treo TckThp np
FD
Len thy tinh(Bdy 50mm)
Bng keo bc
Bng keo bc
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
45/72
Trang45/72
Hnh 54 - Chi tit cch nhit dng cho kt ni vi bt
Ni mm
N mt bch
p y bng thy tinhBng thy tinh dng cch nhit
Ch t t A
Ch t t
ng gi
150mm
Bng keo bc
Kt ni mt bch
Ni mm
100mm
Bng thy tinh cch nhit bn ngoing gi s c gi c nh vi nggi bng nhng inh dn cch nhitv vng m
p y bng thy tinh cchnhit dng cho ng gi HKK
inh dn cch nhit v vng m
ng gi
ng gi
Vng mBng keo bc
Bng keo bc
Bng thy tinh dng cch nhit
ng giinh dn cch nhit
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
46/72
Trang46/72
Hnh.55 - Chi tit cch nhit hp ming gi khuch tn
Hnh 56 - Chi tit cch nhit ming gi khuch tn (Loi gn tng)
Np thpMing gikhuch tn
Sn btng
Cao su xp
m kn
Tng
inh vt ng gi mm
RivetBng keo bc
Ty treo Tck
ng gitrn
Bulng v c tn
Sn btng
Tck
Bulng v c tn
Ty treo
Bng thy tinh cch nhit bnngoi ng gi s c gi c nhvi ng gi bng nhng inh dncch nhit v vng m
Bng thy tinh cch nhit bnngoi ng gi s c gi c nhvi ng gi bng nhng inh dn
cch nhit v vng m
Np thp
Hp bao kn
Trn nh
inh vt
Bng keo nhm
Bng thy tinh cch nhit bnngoi ng gi s c gi cnh vi ng gi bng nhnginh dn cch nhit v vngmBng thy tinh cch nhit bn trong
hp gi s c gi c nh vi hpgi bng nhng inh dn cch nhit
v vng m
Bng thy tinh cch nhit bn ngoing gi s c gi c nh vi nggi bng nhng inh dn cch nhitv vng m
Chiu gi vo
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
47/72
Trang47/72
Hnh 57 - Chi tit cch nhit ming gi khuch tn (Loi gn trn)
Ming gi khuch tn
Trn nh
inh vt tar
Khung inh vt
Thp v rivet
Hp bao kn
Bng thy tinh cch nhit bn
trong hp gi s c gi c nhvi hp gi bng nhng inh dncch nhit v vng m
Hng gi vo
Bng thy tinh cch nhit bnngoi ng gi s c gi c nhvi ng gi bng nhng inh dncch nhit v vng m
Bng thy tinh cch nhit bn
ngoi ng gi s c gi c nhvi ng gi bng nhng inh dncch nhit v vng m
Cao su xp m kn
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
48/72
Trang48/72
Hnh 58 - Chi tit cch nhit ming gi linear diffuser
Hnh 59 - Chi tit cch nhit ming gi
F. LP T NG GI
Linear diffuser
Trn
C nh inh vt
Thp v rive
Bng thy tinh cch nhit bn tronghp gi s c gi c nh vi hpgi bng nhng inh dn cch nhitv vng m
Hp bao kn
Bng thy tinh cch nhit bn ngoing gi s c gi c nh vi nggi bng nhng inh dn cch nhitv vng m
Hng gi vo
Bng thy tinh cch nhit bn ngoing gi s c gi c nh vi nggi bng nhng inh dn cch nhitv vng m
Tng
inh vt
Khung
ng gi
Bng thy tinh cch nhit bnngoi ng gi s c gi c nhvi ng gi bng nhng inh dncch nhit v vng m
inh vt
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
49/72
Trang49/72
1. Ty treo v gi cho ng vung
- Dng ty treo v thp gc L lm gi cho ng gi
Bng 15 - Bng qui cch ty treo v gi ng gi vung
Kch thc ng giKch thc cnh ln nht W
(mm)
Loi thp gc L
(mm)
ng knh tytreo
(mm)
Khong cch hai gi ng ln nht
(mm)
W 1000 30 x 30 x 3 8 2500
1000 < W 2000 40 x 40 x 4 10 2500
2000 < W 3000 Ty vo tng trng hp chn gi cho ph hp
Hnh 60 - Cc chi tit ty treo v gi
ng
Thanh ren
L: Theo bng 11
20mmTc k n
Thanhren
W+40
W
Thp gc L
W: Bao gm c bo n
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
50/72
Trang50/72
Hnh 61 - Cc chi tit ca ty treo v gi
(ng gi vung: Thng ng xuyn sn)
Hnh 62 - Nhng chi tit ty treo v gi
(ng gi vung: ng gi thng ng trn tng)
Bu lng, ai c
ng
Thp gc loi L
ng
N b tng
Bulng n
m cao su (ch cho ngkhng bc cch nhit)
Thp gc loi L
m cao su
Bng khong
ng
Van
m chng chy(p dung cho khu vc chng chy)
Bulng n
Bulng & ai c
Thp gc loi L
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
51/72
Trang51/72
2. Ty treo v gi cho ng trn
Bng 16 Bng qui cch ty treo v gi ng gi trn
ng knh ng gi trn
D
(mm)
Loi ai treo
(mm)
ng knh ty
treo
(mm)
Khong cch hai gi
ng ln nht
(mm)D 500 30 x 2.5 8 3000
500 < D 1000 30 x 2.5 10 3500
Hnh 63 - Cc chi tit ty treo v gi (ng gi trn: Nm ngang)
Kch thc ng 500 v ln hn
A L L
Ty treo
ng son
L: 3500mm v nh hnA: 300mm v nh hn
Bulong n
Ty treo
ai treo ng
ng trn
Kch thc ng 500 v nh hn
L: 3000mm v nh hnA: 300mm v nh hn
A
L L
ai treo ng
ng son
ai treo ng
Ty treoTck
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
52/72
Trang52/72
Hnh 64 - Cc chi tit ty treo v gi (ng gi trn: Thng ng)
3. Gi c nh
a) Gi c nh phi gn c nh trn sn hoc .
b) Khong cch t gi c nh nh hn hay bng 12,5m.
Hnh 65 - Nhng chi tit ca gi c nh
12,500mm v nh hn
Gi d c nh
ng
ng ng
Thp gc loi L Dm
Thp gc loi L
4 im nibng vt
ai gi ng
Kch thc ng 500 v nh hn
N btng
Ging cao su (chdng cho ngkhng c cch
nhit)
ng ng
Mi hn
Bu lng v ai c
Chi tit A
Thp gcloi L
ai gi ng
N btng
ng ng
Kch thc ng 500 v ln hn
4 i m nibng bulng& ai c
Chi titA
Gingcao su
ai gi ng
Thp gcloi L
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
53/72
Trang53/72
Hnh 66 - Chi tit kt ni Ni mm gia ng gi v thit b
4. Van iu chnh lu lng gi VD(volume damper)
- VD bao gm khung, cnh iu chnh quay trc bi tay chnh.Cnh VD s lm thay i lu lng gi
v s khng rung v n. Ch lp VD xem hnh 67.
Hnh 67 - Nhng chi tit lp VD
5. Van ngn chy FD (Fire Damper).
- FD c tc dng cch ly, ngn chn la, kh c nhit cao xm nhp qua cc khu vc khc bn
trong ng gi.
- FD phi c gi bng ty treo c lp.
LMt bch
Khp ni vi btChi tit A
L:150mm v ln hn
Flangeng
m
rivet
Bu lng& ai c(M 8mm)
5mm
Ni mm
Chi tit A
inh vt Tm thp trng km
1Ti v tr t rung ng
2Ti v tr rung ln
VD
ng
Hng giVane
VD
Vane
Hng gi
ng
L
L8D v ln hn (theo bn v ph duyt)
D
Qut
VD
Hng ging
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
54/72
Trang54/72
6. Lp t ming gi
- Chni ming gi s c vng m v s dng nhng inh vt cng mu vi khung trn.
- Lp t ming gi m bo khng c l h di khung trn.
Ch : Chi tit lp t ming gi c th hin trong bn v thi cng.
7. Kt ni ng gi mm vi hp ming gi v VD: (xem hnh 7)
a. ng gi mm kt ni hp ming gi c buc bng dy thp 1.5mm v xung quanh dn
bng keo bc.
b. VD ni vi ng gi mm (Flexible duct) c buc bng dy thp 1.5mm v xung quanh
dn bng keo bc.
W150mm
H150mm H150mm
H150mm
150 mm v ln
150mm
WH
K K
WH WH
K
Kt ni vi ngKt ni vi ng hnh chai
H,W: Kch thc ca thng gi trn
Kt ni vi bung thng gi
Trn TrnTrn
K: 150 - 250mm
ng
ng
ng
Bung thng gi ng hnh chai ng
ng
150 mm v ln
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
55/72
Trang55/72
Hnh 7: Ni ng gi mm vi ming gi v VD
G. PHNG PHP TH X NG GI
1.Qui Trnh
a. ng gi trc khi th x c lm kn . ng gi chnh ln c bt bng mt bch , cn cc u nh
c bt kn bng nilong .
b. i vi h thng p sut nh v trung bnh ( p sut tnh 1000 pa ) th cc ming gi c thi cng
giai on hai v khng bao gm vic th x . Mi ni cui cng ny c kim tra bng mt .
c. Thi gian th x ph hp sau khi lp t ng ng gi v silicon kh .
2.Tiu chun k thut ca vic th x ng gi : Theo Tiu chun DW 143
Chng loi ng gi theo bng 1 bn di .
Van chnh gi
(VD)
Van chnh gi
Ming gi
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
56/72
Trang56/72
3.Nhng lu :
1) r r ln nht cho tt c cc di p sut c cho bng 2 hoc s dng gn ng bng cch p
dng cch tnh trung bnh cng ca gi tr p sut ni suy ra gi tr r r .
2) r r cho php ln nht cng c th tra trn th trn my .
3) Nu lng gi r r trong phm vi = 10% lng gi r r ln nht cho php th c xem nh t yu
cu hoc p sut c c = 5% p sut yu cu th cng c xem nh l t yu cu .
Nhng trng hp khc khng c xem l t yu cu .
Table-1: S phn loi ng gi v gii hn lng gi x
Ductwork Classification and Air Leakage Limits
Gii hn p sut tnh
Static pressure limit
Phn loi p sut gi
Duct pressure class
p sut
dng
Positive
(Pa)
p sut
dng
Negative
(Pa)
Vn tc gi
ln nht
Maximum air
velocity(m/s)
Lng gi x gii hn
(lt/giy/m2b mt ng gi ) Air
leakage limits liters per second
per square meter of duct surfacearea
p sut thp
Low-pressure - Class A500 500 10 0.027 x p0.65
p sut trung bnh Medium-
pressure -Class B1000 750 20
0.009 x p0.65
p sut cao
High-pressure - Class C2000 750 40
0.003 x p0.65
Note: p l p sut chnh lch , tnh bng pa .Where p is the differential, pressure in Pascals.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
57/72
Trang57/72
Table-2: Air leakage rates
Maximum leakage of ductworkChnh lch
p sut tnh
Static
pressure
differential
p sut thp
Low-pressureClass A
p sut trung bnh
Medium-pressureClass B
p sut cao
High-pressureClass C
Pa Liters per second per square meter of surface area (l/s/m2)
100 0.54 0.18 -
200 0.84 0.28 -
300 1.10 0.37 -
400 1.32 0.44 -
500 1.53 0.51 -600 - 0.58 0.19
700 - 0.64 0.21
800 - 0.69 0.23
900 - 0.75 0.25
1000 - 0.80 0.27
1100 - - 0.29
1200 - - 0.30
1300 - - 0.321400 - - 0.33
1500 - - 0.35
1600 - - 0.36
1700 - - 0.38
1800 - - 0.39
1900 - - 0.40
2000 - - 0.42
Note: Recommended mean test pressures are highlighted in bold type with the actual selection being left to the testoperator.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
58/72
Trang58/72
Figure.1: Permitted leakage at various pressures
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
59/72
Trang59/72
4.o t
a. Dng c th x : Cho ng gi .
Thit b th x c ni v hot ng theo ch dn . Nhn chung l c t trn b mt bng phng v
chc chn rng ng h o c t trn nh vi cht lng ng chng loi v c ch v tr s Zero
trc khi o . Manometer nm nghing c t l r r hoc p sut ri l cc tr s c th bin i
theo t l r r c ch dn theo th .
Manometer thng ng c p sut th .
chnh xc ca dng c th s nm trong phm vi : 10% ca lu lng ch th hoc 0,4 lt/s v c
ly theo tr s no ln hn v 5% ti p sut tnh ch th trong ng gi trong qa trnh th .
Cch th x ng gi c th hin trong hnh 2 ( figure.2 )
b. Cc bc th x ng gi
1) Chun b bin bn th (Bng tnh ton theo form bn di ).
2)Ni v iu chnh test rig cho ng vi p sut th .
3) Biu th t l r r .
4) Trt silicon li nu cn thit (Ch thi gian silicon kh).
5) Duy tr th trong 15 pht .
6) Tt v a tr s v zero.
7) Th li v kim tra cc tr s .
8) Ghi cc chi tit vo bin bn v cc bn k .
(Vui lng xem bng mu hon thin ca vic th x ng gi )
Lu : Khng th qu p h thng .
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
60/72
Trang60/72
Figure.2: Hints on Ductwork Leakage Testing
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
61/72
Trang61/72
Figure.3: AIR AT 16oC. 1000 m.b.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
62/72
Trang62/72
Project Name: Tan Son Nhat International Airport Teminal Project Ref. Test Number: TSN / LTR / M / ****
Location of duct to be tested: Testing date: *************************
Floor: System: A/C Duct
Shop drawing number : Kind of duct: Galvanized steel sheet
Require test pressure classification: Duration of test : 15 minutes
Start time: ********************* Finish time: **************************
1. Part-1: Physical details
a) equire test pressure classification: Classs 'B'
b) est static pressure (Pa) : 500
c) eakage factor (l/s/m2): 0.51
d) urface are of duct under test (m2): 157.17
e) aximum permitted leakage (l/s): 80.16
2. Part-2: Test particulars
a) uct static pressure reading (Pa): 500
b) anufacturer and type of measuring device:
c) ange of measurement of flow measuring device (l/s): 0 to 400 l/sd) eading of flow measuring device (pascals): 82
e) Interpreted air flow leakage rate (l/s): 68
3. KTOM check:
Initial test pressure (Pa): Finish test pressure (Pa):
Ambient tem perature a t star t time: N/A Amb ient temperature at finish time: N/A
Comments:
Passed Failed
4. JAC comments:
No. Engineer Instruction / Comment On Site
Comments:
Passed Failed
ested by: REE Inspected by: KTOM JV Inspected by: JAC Approved by: JAC
Name: Name: Name: Name:
Signature: Signature: Signature: Signature:
Date: Date: Date: Date:
Example of a completed DUCTWORK LEAKAGE TESTING SHEET
With and depth or diameter(mm) Periphery (mm) Length (m) Area (m2)
A.D. Ltd , 504 Test Rig
(FROM RIG MANUFACTURERS LITERATURED
(FROM CALCULATION BELOW
(FROM REFER TO TABLE-3
(FROM DESIGNERS BY REFER T O TABLE-3
700x400 2200 19.85 43.67
600x400 2000 23.21 46.42
(READ OFF MANOMETER ON TEST RIG
(c x d
550x300 1700 12.56 21.35
600x350 1900 11.10 21.09
(PROVIDED BY DESIGNERS
157.17 Total
( DERIVED FROM CHART SUPPLIED WITH R IG USING "d"( SOME RIGS READ AIR LEAKAGE DIRECTLY
Calculation sheet for surface are of duct under test:
400x300 1400 15.46 21.64
(FROM RIG
(PROVIDED BY DESIGNERS
(FROM DESIGNERS BY REFER TOTABLE-2
(FROM REFER TO TABLE-2
(FROM CALCULATION BELOW
(c x d
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
63/72
Trang63/72
Ref. Test Number: *Location of duct to be tested: Testing date: *************************Floor: System: A/C DuctShop drawing number: Kind of duct: Galvanized steel sheetRequire test pressure classification: Duration of test : 15 minutes
Start time: ********************* Finish time: **************************1. Part-1: Physical detailsa) Require test pressure classification:
b) Test static pressure (P a) :
c) Leakage factor (l/s/m2):
d) Surface are of duct under test ( m2): (e)e) Maximum permitted leakage (l/s):
2. Part-2: Test particularsa) Duct static pressure reading (Pa):
b) Manufacturer and type of measuring device:
c) Range of measurement of flow measuring device (l/s):d) Reading of flow measuring device (pascals):
e) Interpreted air flow leakage rate (l/s):
3. IBST check:Initial test pressure (Pa): Finish test pressure (Pa):
Ambient temperature at start time: N/A Ambient temperature at finish time: N/AComments:
Passed Failed
.
Tested by: REE Inspected by: I Approved by: :Name: Name: Name:Signature: Signature: Signature:Date: Date: Date:
(PROVIDED BY DESIGNERS
(e)=(e1)++(en)Total
DERIVED FROM CHART SUPPLIED WITH RIG USING "d"
( SOME RIGS READ AIR LEAKAGE DIRECTLY
Calculation sheet for surface are of duct under test:
(en)
(FROM RIG
(READ OFF MANOMETER ON TEST RIG
( cx d
(a1) x (b1) (c1)=2(a1)+2(b1) (d1) (e1)=(c1)x(d1)
LEAKAGE TESTING RECORD - DUCTWORK LEAKAGE TESTING SHEE
With and depth or diameter(mm) Periphery (mm) Length (m) Area (m 2)
A.D. Ltd, 504 Test Rig(FROM RIG MANUFACTURERS LITERATURED
(FROM CALCULATION BELOW(FROM REFER TO TABLE-3
(
Project Name: DA 239/05 B cng An
(FROM DESIGNERS BY REFER TOTABLE-2)
(FROM REFER TO TABLE-2)
(FROM CALCULATION BELOW)
(c x d)
(PROVIDED BY DESIGNERS)
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
64/72
Trang64/72
BIN PHP T CHC THI CNG LP T THIT B HKK
Bin php lp t FCU: C 2 loi lp t FCU treo trn trn v t sn
Bng - Thng s lp t FCU
FCUB dy ca b my
(mm)
Tm gim rung
(tm)
Kch thc by
ng x nc
lnh (mm)
Kch thc
ca tck
(mm)
Kch thc
ca ty treo
(mm)
t sn 100 4 60 10 -Treo trn - 4 60 10 10
Lp t FCU t sn:
Ly du v xy b my trn sn
Vn chuyn FCU n v tr cn lp t bng xe y
Ly du trn b my ng tck v t tm m gim rung cho FCU
Chuyn FCU ln b my v gi c nh FCU trn b my. Kt ni ph kin. (ng gi, ng nc v in)
Tin hnh thi cng lp t
Nghim thu lp t FCU
Ly du v ng tck
t yu cu
Khng tChnh sa nghim thu li
Chuy n FCU n ni lp t
Kt ni h thng
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
65/72
Trang65/72
Chi tit lp t FCU t sn
Lp t FCU treo trn trn:
Vn chuyn FCU n v tr cn lp t bng xe y
Lp dn gio theo cao cn lp FCU.
Ly du trn trn ng tck v treo ty 10mm cho FCU
Chuyn FCU ln dn gio.
C nh FCU trn ty treo 10mm v chnh FCU theo ng cao yu cu.
Kt ni ph kin. (ng gi, ng nc v in)
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
66/72
Trang66/72
Chi tit lp t FCU treo trn
Bin php lp t qut: tng t nh lp t FCU
Tin hnh thi cng lp t
Nghim thu lp t qut
Ly du v ng tck
t yu cu
Khng tChnh sa nghim thu li
Chuyn qut n ni lp t
Kt ni h thng
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
67/72
Trang67/72
Bng - Thng s lp t qut
Trng lng qut
M(Kg)
B dy ca
b my
(mm)
Tm gim
rung
(tm)
Kch thc
ca tck
(mm)
Kch thc
ca ty treo
(mm)
50 v nh hn 100 4 10 10
50 n 150 100 4 12 12
150 v ln hn 100 4 16 16
Bin php lp t AHU:
Bng - Thng s lp t AHU
S chnh p sut
ca AHU
B dy ca
b my
(mm)
Tm gim rung
(tm)
Kch thc by
ng x nc lnh
(mm)
600 Pa 150 8 60
> 600Pa 200 12 75
Ly du v xy b my trn sn
Vn chuyn AHU n v tr cn lp t bng xe y ko.
Ly du trn b my t tm m gim rung cho AHU
Chuyn AHU ln b my.
Kt ni ph kin. (ng gi, ng nc v in)
Tin hnh thi cng lp t
Nghim thu lp t AHU
Ly du v t tm gim rungtrn b my
t yu cu
Khng tChnh sa nghim thu li
Chuy n AHU n ni lp t
Kt ni h thng
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
68/72
Trang68/72
Vn chuyn AHU n v tr lp t Chi tit lp t AHU
Bin php lp t bm nc:
Ly du v xy b my trn sn
Vn chuyn bm n v tr cn lp t bng xe y ko.
Ly du trn b my t tm m gim rung cho bm
Chuyn bm ln b my. Kt ni ph kin. (ng nc v in)
Tin hnh thi cng lp t
Nghim thu lp t bm
Ly du v t tm gim rungtrn b my
t yu cu
Khng tChnh sa nghim thu li
Chuy n bm n ni lp t
Kt ni h thng
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
69/72
Trang69/72
Vn chuyn bm n v tr lp t Chi tit lp t bm
Bin php lp t Chiller:
Ly du v xy b btng trn sn
Vn chuyn Chiller n v tr cn lp t.
Ly du trn b my t l xo gim rung cho Chiller
Chuyn Chiller ln b my v c nh Chiller trn b btng.
Kt ni ph kin. (ng nc v in)
Tin hnh thi cng lp t
Nghim thu lp t Chiller
Ly du v t tm gim rungtrn b my
t yu cu
Khng tChnh sa nghim thu li
Chuyn Chiller n ni lp t
Kt ni h thng
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
70/72
Trang70/72
Chi tit a chiller vo b trn tng mi
Chi tit lp t chiller
Bin php cu chiller ln mi : nh thu c in s b sung chi tit phn cu chiller ln mi nh,
sau khi cc t tnh k thut ca chiller c xc r nh: nhn hiu, cng sut, ti trng, kch thc
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
71/72
Trang71/72
VI - AN TON LAO NG, PHNG CHNG CHY N V BO
V MI TRNG
1. AN TON LAO NG
a. Tng quan.
Cc qui nh v an ton phi c p dng cho ton b k s, gim st v cng nhn thi cng trn
cng trng nh di y:
m bo tt c cc trang thit b an ton lao ng phi c cung cp trc khi bt u thi cng
bt c cc cng vic nh m bo h, ng, gng tay, knh
m bo cc trang thit b an ton lao ng cho ngi phi c mc, eo ng cch.
Cc dng c, my mc thi cng phi c kim tra bi ngi c chuyn mn trc khi a ra s
dng.
Ro chn, li bo v, bng cnh bo an ton phi c s dng trn cng trng.
Cc bnh cha chy phi c a ti cc v tr c nguy c xy ra chy n.
Thang v li thot him phi c cung cp chun b trong cc tnh hung khn cp..
Phi m bo nh sng khi lm vc ban m.
V tr lm vic phi c dn sch s loi b ht rc ri v cc vt nguy him.
Tt c cng nhn v cn b phi c hc qua cc kho hun luyn.
Phi c b phn ph trch ATL v c nht k ATL.
b. Cc cng vic vi my hn
Cng nhn thc hin phi c trang b knh, gng tay, m.
Cc bnh cha chy phi lun c t cnh ni lm vic
My hn phi c kim tra cn thn trc khi lm vic.
c. Lm vic trn cao:
Cc cng nhn phi eo dy an ton khi lm vic cao ln hn 2m.
Gio thi cng phi c mm, ging gio v c lp ng cch.
Phi c thang ch A s dng trong cc v tr ph hp.2. PHNG CHNG CHY N
Niem yet noi qui PCCC, bien cam la, cam hut thuoc, tieu lenh cha chay nhng ni de chay
no.
Thc hien cac bien phap, giai phap ky thuat e chong che va kiem soat chat che cac nguon
la, nguon nhiet, sinh la, sinh nhiet.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
-
7/13/2019 Bien Phap Thi Cong M&E.
72/72
Hang hoa trong kho phai sap xep theo ung qui nh an toan.
Lap at cac thiet b bao ve cho he thong ien.
Khong nau an, lap ban th cung ni cong trng.
3. BIN PHP AN TON H THNG IN
Co u thiet b bao ve chong qua tai, ngan mach, s co ro ien.
Cam s dung ien bang cach au day pha cua mot nguon va day trung tnh cua nguon khac vao
thiet b.
Cam mac en chieu sang bang cach au mot au day vao day pha con mot au day cam xuong
at. Khong s dung ket cau cua nha xng lam day trung tnh.
May han phai dung day dan rieng e keo ve. Khong dung ket cau kim loai nha xng, may,
vat t kim loai e dan ve.
Generated by Foxit PDF Creator Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.