huong dan watercad-co trang

March 15, 2012 WATERCAD USER'S GUIDE

Son bi : DAVISA Mail: [email protected] Trang-1



GII HIU

-----0O0-----

Trong lnh vc cp nc cho th vic tnh ton phn tch thy lc l vic lm ht sc cn thit. Vic vch tuyn cp nc v chy m hnh trn phn mm Watercad s gip tit kim khng t thi gian ngoi nhng tnh nng t th ca Watercad gip ngi thit k to nhiu kch bng nhm phn tch, so snh chn ra phng n ti u nht cho h thng mnh thit k Hng dn s dng phn mm Watercad ny c son da trn help ca phn mm, nu mun tm hiu sau hn th nn c theo help ca ca chng trnh, y ch gi thiu nhng bc c bn nht, tng quang nht v phn mm, gip cho nhng ai mun nghin cu v phn mm ny tip cn v rt ngn thi gian Hng dn ny ch hng dn s dng phn mm khng nu c th v cch tnh ton

SON BI : AVISA



HNG DN S DNG ---O0O---

I. TNG QUAN V PHN MM WATERCAD 1. Khi ng phn mm WATERCAD .

Cch 1: Star Programs Bentley Watercad V8i Watercad V8i for AutoCAD 2010

Cch 2: Kch Trc Tip Trn Desktop



2. Gii thch cc thut ng trong menu Watercad

Cc thanh cng cng c ca Watercad c tch trong phn mm Autocad

Trn menu Watercad

1. Project: cha cc la chn xut/nhp v cc thng

tin lin quan n d n 2. Edit: cha cc thuc tnh la chn qun l i tng 3. Analysis: cha cc thuc tnh lin quan n to, chnh

sa v phn tch d n theo cc kch bn 4. Components: cha cc thuc tnh khai bo ng

cong t tnh 5. View: cha cc thuc tnh xem d n di dng bng

biu hoc th 6. Tools: cha cc thuc tnh cng c lin quang ln kt

ni c s d liu ngoi 7. Report: cha cc thuc tnh bo co kt qu tnh ton 8. Help: cha cc thuc tnh hng dn v thng tin v

Watercad

Giao Din Lm Vic Trong Mi Trng Autocad



1. Menu Project

Gii thch thut ng

1. Save as autoCAD : lu li d n watercad vi tn khc 2. Import: load vo mt file t mt d n chy trn ng dng m

phng thy lc khc - D n t chng trnh Hammer - D n t chng trnh Epanet - D n t chng trnh Submodels - D n t chng trnh Watercad 2004

3. Export: xut file d n qua m hnh phn tch thy lc khc

C 3 m hnh : - Epanet - Submodles - Hammer V7



V d : khi load mt file d n t m hnh phn tch thy lc EPANET

Watercad project import EPANET

Chn file cn load vo d n .File load vo c nh dng ui (*.inp) nh dng ca EPANET

Ch cho chng trnh Watercad c d liu t file

Chng trnh Watercad s hin mt hp thoi hi bn c mun th hin cc d liu d n ngay bay gi khng (yes: ng ). (No : hy)

Sau khi chn yes xut hin hp thoi bt u ghi d liu tng yu t vo chng trnh Watercad



V d : khi xut file d n qua m hnh phn tch thy lc EPANET

Watercad Project Export EPANET

+ Chn v tr lu file khi xut qua epanet File xut ra c nh dng ui (*.inp) nh dng ca EPANET + sau khi chn save th hp thoi la chn kiu xut d liu

- Khi chn YES : xut cc i tng

theo thuc tnh nhn ca i tng - Khi chn NO: xut cc i tng

theo thuc tnh IDs

(thng chn YES)

4. project properties: Ghi ch cho d n.

Watercad Project project properties

Gii Thch

- Ghi Tn D n ang thc hin

- ng dn file ang thc hin

- Tn ngi thc hin - Tn Cng ty - Ngy thng thc hin d n

- Ghi ch cho d n



2. Menu Edit

Gii thch thut ng

- Select All : chn tt c cc i tng thuc tnh

ca watercad - Invert Selection: o ngc s la chn cc

i tng khng c la chn. - Select By Element: chn mt trong cc i

tng c lit k trong menu con - Select By Attribute: chn mt trong cc thuc

tnh t mt i tng trong menu con (s xut hin hp thoi truy vn chn thuc tnh cn chn)

- Clear Selection: hy chn cc i tng ang c chn thuc tnh watercad

- Clear Highlight: - Find Element: tm i tng thuc tnh

Watercad trong bng v (bng cch nhp vo nhn i tng cn tm)

Cc la chn i tng trong thuc tnh Select By Element

( ngha ca vic la chn ny l chn nhanh cc i tng theo tnh cht ca n)

Cc yu t trong trong Menu con select by

Element



Cc la chn i tng trong thuc tnh Select By Element

( ngha ca vic la chn ny l chn nhanh cc i tng theo tnh cht ca n) VD: chn tt c cc i tng l junction

Thc hin: Watercad Edit Select By Element junction Kt qu tt c cc di tng l junction trong bn v c chn

- ng v nt -nt -hng ly nc -i nc -b cha nc -bm -cc loi van

-cc la chn khc

(Hydrant)

- Hng ly nc



Vi la chn Select By Attribute:

Watercad Edit Select By Attribute

VD: lit k xem c bao nhiu t c p lc ln hn 35 m H2O Thc hin: Watercad Edit Select By Attribute Junction

Hp thoi: query builder - junction

Cc Bc Thc Hin: B1: chn yu t pressure trong danh sch (fields) kch p chut vo nhn pressure B2: kch chn k hiu ton hchoc cc biu thc logic ( y chn >= ) B3: nhp vo gi tr cn lc ra ( y nhp gi tr 35) B4: chn biu tng Unique Values lit k tt c cc gi tr p lc (pressure) B5: chn vo biu tng

Ch :

1. khi du c nh du c ngha l biu thc bn nhp vo nu khng hp l th s c mt thng bo. dng thng bo xut hin di gc phi ca hp thoi

2. Di gc tri ca hp thoi s hiu th cc yu t tha iu kin lc trong tng s yu t

1

3

2 4



Vi la chn Find Element

Watercad Edit Find Element

- Khi chn Find Element mt hp thoi xut hin

- Nhp vo tn nhn ca i tng cn tm trn bn v

- Chn chng trnh t tm v chn i tng trn bn v.

- Chn vo l l phng ln trong xem

(khi i tng c chn th cc thuc tnh ca i tng c lit k trong hp thoi)



3. Menu Analysis

Gii Thch Thut Ng

- Scenarios: hp thoi qun l kch

bng,cho php bn to ,xem v qun l cc kch bng d n

- Alternatives: hp thoi qun l cc la chn thay th m phng. cho php bn to, xem v qung l cc la chn thay th m phng

- Calculation Options: Hp thoi Qun l ty chn m phng tnh ton. cho php bn to, xem,v qun l cc thit lp tnh ton cho d n

- Hydrant Flow Curves: hp thoi ng cong t tnh hng ly nc, cho php bn chnh sa, xem v to cc nh ngha lu lng hng ly nc

- Post Calculation Processor : hp thoi tnh ton

- Energy Costs: hp thoi qun l chi ph nng lng. ni bn c th xem v tnh ton chi ph nng lng (vd: in nng )

- EPS Results Browser: hp thoi thao tc theo thi gian (chy m phng theo thi gian)

- Calculation Summary : hp thoi xem tm lc kt qu tnh ton

- User Notifications: hp thoi thng bo cho ngi thit k bit cc cnh bo v li trong qu trnh tnh ton.

- Validate: kim tra d liu trong mng li cnh bo cho ngi thit k cc vn c th gy li trong qu trnh tnh ton

- Compute: tnh ton



4. Menu Components

Gii Thch Thut Ng - Controls: hp thoi iu kin, ni

bn c th thit lp iu khin, v kim sot mt cch hp l

- Zones: hp thoi ni m bn c th xem, to, chnh sa hoc xa cc khu vc

- Patterns: hp thoi qun l m hnh theo chui thi gian. ni m bn c th chnh sa, to hoc xa cc m hnh

- Pressure Dependent Demand Functions: hp thoi qun l p lc ph thuc vo chc nng nhu cu. ni bn c th to, chnh sa p lc ph thuocj vo nhu cu

- Unit Demands : hp thoi qun l nhu cu n v, ni bn c th to v chnh sa cc nhu cu n v da trn s lng, din tch v dn s.

- Pump Definitions: hp thoi nh ngha bm,

ni bn c th to v chnh sa cc nh ngha bm.

- Minor Loss Coefficients: hp thoi qun l h s tn tht cc b (khi dng nc chy qua v tr cong, t, ct,cn)

- GPV Headloss Curves: hp thoi qun l, chnh sa v to cng cong tn tht ct nc cho van mc ch chung

- Constituents: hp thoi qun l cc thnh phn

- Valve Characteristics: hp thoi

khai bo cc c im van. - Time Series Field Data: hp

thoi qun l chui d liu thi gian, ni bn c th to, xa v chnh sa d liu theo chui thi gian

- Engineering Libraries: hp thoi qun l cc thng s k thut, ni c th xem, chnh sa hoc xa cc thng s k thut



5. Menu View

Gii Thch Thut Ng - Element Symbology: hp thoi qun l cc i

tng. ni cho php bn to nhn, xem, v qun l cc ch thch v m ha mu sc trong d n ca bn.

- Selection Sets: hp thoi qun l cc thit lp la chn. ni c th to, xem , xa cc thit lp la chn.

- Queries: hp thoi truy vn, ni bn c th to ra cc biu thc SQL lc cc i tng.

- Prototypes: ni bn c th nhp cc gi tr mc nh cho cc yu t trong m hnh ca bn

- FlexTables: ni bn c th to, xem, v qun l cc bo co dng bng cho d n.

- Graphs: ni bn c th to, xem, v qun l cc th cho d n.

- Profiles: ni bn c th to, xem, v qun l cc h s cho d n.

- Contours: ni bn c th to v chnh sa cc nh ngha ng ng mc theo thuc tnh trong d n

- Named Views: ni bn c th to, chnh sa, v t tn cho cc ch xem.

- Properties: m hp thoi ty chn cc thuc tnh cho i tng

- Customizations: hp thoi qun l cc ty chnh

- Auto-Refresh: ch t ng cp nht, khi c s thay i trong qu trnh nhp liu cng nh thao tc trn bng v ( khi c chn, c ngha cc bng cp nht t ng c bc ln)

- Refresh Drawing: cp nht li d liu trong bng v.



6. Menu Tools

Gii Thch Thut Ng - Active Topology Selection: la chn

cc yu t trong cc bn v lm cho chng khng th hot ng.

- ModelBuilder: hp thoi qun l kt ni xy dng m hnh, ni c th to, chnh sa, hoc xa kt ni vi d liu bn ngoi. ng ha d liu xy dng m hnh.

- Trex: m hp thoi kt ni cc ngun d liu bn ngoi, ni m bn c th gn cao cho cc nt trong m hnh t d liu bn ngoi.

- SCADAConnect: hp thoi qun l SCADA. Ni bn c th to, chnh sa kt ni SCANDA.

- Skelebrator Skeletonizer: M qun l Skelebrator, ni bn c th xc nh v thc hin cc hot ng skeletonization.

- LoadBuilder: ni bn c th ch nh nhu cu s dng n cc nt m hnh t cc ngun d liu bn ngoi

- Thiessen Polygon: to Thiessen a gic s dng vi LoadBuilder.

- Demand Control Center: kim sot nhu cu. ni bn c th thm cc yu cu mi, xa cc nhu cu hin ti, hoc sa i cc nhu cu hin ti.

- Unit Demand Control Center: kim sot nhu cu n v. ni bn c th thm cc nhu cu n v mi, xa cc nhu cu n v hin c, hoc sa i nhu cu n v hin c.

- Scenario Comparison: cng c so snh kch bn. cho php bn so snh gi tr u vo gia bt k hai kch bn, xc nh s khc bit mt cch nhanh chng gia 2 kch bn.

- Hyperlinks: to cc Lin kt cc tp tin bn ngoi, chng hn nh hnh nhhoc cc file phim, vi cc yu t trong m hnh.

- Assign Isolation Valves to Pipes: ch nh cc van cch ly tuyn ng

- User Data Extensions: hp thoi d liu m rng, cho php ngi s dng thm v xc nh cc lnh vc d liu ty bin.V d: bn c th thm cc lnh vc mi nh ngy lp t ng ng,.

- Batch Pipe Split: M hp thoi Chia hng lot ng.

- Database Utilities: cc tin ch cho C s d liu



- Layout: Trnh n lit k cc loi phn t c sn. Chn mt trong nhng phn t ny v trong m hnh ca bn.

- External Tools: Chy mt cng c hin hu bn ngoi hoc to ra mt ci mi bng cch m trnh qun l Cng c bn ngoi.

- Options: hp thoiTy chn, cho php bn thay i cc thit lp nh: V, n v, Dn Nhn,

7. Menu Report

Gii Thch Thut Ng

- Element Tables: m menu con cho php bn la chn m cc bng FlexTables cho cc yu t bt k. nhng FlexTables c xc nh trc c cha hu ht cc d liu u vo v kt qu tnh ton cho tng yu t la chn trong m hnh

- Scenario Summary: xem Bo co tm tt kt qu m phng kch bn.

- Project Inventory:xem bo co kt qu cn tn ti trong d n cha cc s lng ca cc loi phn t khc nhau trong mng

- Pressure Pipe Inventory: kim k p lc trong cc on ng trong d n.

- Report Page Setup: thit lp trang in bo co. - Report Options: hp thoi ty chn bo co. Ni ngi thit k c th thit lp Headers v Footers cho cc trang bo co c xc nh trc.



8. Menu Help

Gii Thch Thut Ng

Trong menu help cha cc lin kt n bi hng dn v cc thng tin v phn mm

waterCAD



II. HNG DN CHY MT M HNH D N. 1. Thit lp cc thng s u vo cho Watercad .

Thit Lp cc thng s u vo

Thc hin: WaterCAD Tools Options

Trong Hp Thoi Options : Tab Global

GII THCH THUT NG

Bn c th thay i mu sc ca thuc tnh ny bng cch bm chn vo du chm lng () chn mu mnh mun th hin -Khi chn vo dudng (Display Inactive Topology) C ngha l th hin cc yu t khng hot ng trn bng v - tt cc hnh vi ca ln nhc nh Bn truy cp vo

thit lp li.

Mu nn cho bit d liu ch c khng th chnh sa

Mu sc cho cc yu t khng hot ng trong bn v

VD: khi chn lnh: Watercad tools Active Topology Selection

khng cho mt yu t no hot ng th mu ca chng s c th hin theo mu sc chn trong layout ny

Mu ch cho khu vc ch

xem c d liu khng th chnh sa



Trong Hp Thoi Options : Tab Project

GII THCH THUT NG

-Spatial Reference: Khng gian tham chiu. C th b trng trng ny nu khng c thng tin khng gian. -Root Path: ng dn n th mc gc, cho php bn ch nh ng dn gc ni kt qu cc tp tin c lu tr. Kch vo nt chm lng () chn ng dn n th mc gc - Path Format: Cho php bn ch nh, nh dng ng dn bng cch chn trong nt [>] - Path: t ng cp nht ng dn tp tin da trn cc thit lp trn ng dn gc - Round Pipe Length to Nearest: lm trn n n v gn nht theo quy nh ca ngi thit k

Tnh chiu di ng s dng cao ti nt



Trong Hp Thoi Options : Tab Drawing

GII THCH THUT NG

-Cc thuc tnh khc c th xem trong help

ca Watercad

- Drawing Mode: Chn mt trong hai ch theo t l (Scaled) hoc Gin (Schematic) cho cc m hnh trong ca s bn v.

- Plot Scale Factor 1 in. =: chn t l cho ph hp vi thc th VD: 1cm bn v = 1m thc t (tu theo t l bn v)

- Align text with pipes: khi nh du tick th nhn lun quay dc theo ng v t gn trung tm on ng



Trong Hp Thoi Options : Tab Units

GII THCH THUT NG

-Label: cha thng tin cc thuc tnh -Units: n v s dng -Dislay Precision: th hin bao nhiu s thp phn sau du phy -Format: nh dng kiu d liu Trong tap ny phn p lc (pressure)chn n v l mH2O

Ch chn li n v s dng sao cho ph hp vi kt qu th hin trong d n

- Lu li cc thit lp dng li cho d n sau

- Load li file thit lp n v t cc d n trc

- Trong mc Reset Defaults c 2 h n v

System International (Metric) kiu n v mt US customary ( Imperial ) kiu n v feet



Trong Hp Thoi Options : Tab Labeling

GII THCH THUT NG

-On: bc /tt yu t t ng ghi nhn. -Next: gi tr khi u cho phn s ID ca nhn - Increment: khong tng cho phn t nhn k tip -Prefix: tin t trc cho mi s ID ca cc phn t (c th l ch ci hoc con s) -Digits: s lng ch s ti thiu m mi s ID c VD: thit lp 1 con s th s l 1,10,100, Thit lp 2 con s th s l : 01,10,100, -Suffix: hu t cho mi s ID ca cc phn t (c th l ch ci hoc con s) - Preview: xem trc nhn s th hin

Chnh sa nhn sao cho ph hp vi d n v d qun l nht

- Lu li cc thit lp dng li cho d n sau

- Load li file thit lp nhn t cc d n trc



2. Thit lp n v cho bn v.

Thit lp n v cho bng v mi trng CAD C1: Format Units C2: g lnh Units vo Command trong cad

Xut hin Hp thoi chnh sa n v cho bng v CAD

Chn li thng s nh hnh di

-Chiu di chn kiu thp phn : Decimal - n v l theo khon cch l: Meters

- Chn h n v kiu : International



3. Ghi ch cho d n th hin.

M hp thoi project properties.

Watercad Project Project Properties.

4. Tin hnh vch tuyn mng li cp nc trn mt bng.

Thc hin: C1: Watercad Tools layout pipe C2: kch trc tip trn thanh cng c layout

Tin hnh Vch tuyn trn mt bng, mun kt thc on no th kch phi chut chn DONE

Mc bng vch tuyn

Ghi ch cho d n. (c hng dn trn)



Tip tc vch tuyn on ng khc Chn vo nt vch trn tuyn trc n tip tc vch tuyn r nhnh khc Khi chn vo nt th Watercad t hiu nt tn ti

Khi vch tuyn s gp trng hp, mun chn nt mun v ln on ng v trc lm 2 on.

Khi v nt ln on ng tn ti Watercad s hin mt bng thng bo

Khi thit k chc chn c nhng on ng bn mun v cong, trong Watercad c h tr gip bn v cong ny khi v bng lnh v pipe ca Watercad n on bn mun v cong kch phi chut Bend tin hnh v on cong khi mun kt thc lnh v on cong kch phi chut chn lnh v i tng tip tc hoc chn DONE thot lnh

Ch khi v on cong bng lnh BEND v cng nhiu im th on cong cng mt hn. Nhng on ng v thng c th chnh nhng on ng ny cong theo ngi thit k Thc hin: Kch chn on ng cn chnh sa phi chut bend add bend chn im ln on ng b cong Thm cng nhiu im add bend th on ng cng mt hn sau thi thm cc im gy thin hnh r nhng im ny sao cho to ra on cong theo ngi thit k Khi nhng on ng v cong bng lnh bend c th xa cc im b cong ny bng cch Thc hin: Kch chn on ng cn chnh sa phi chut bend Remove Bend chn im b cong cn xa



5. Gii thch cc yu t trn thanh cng c layout v menu

layout

Gii thch cng dng cc biu tng trn thanh

layout

Menu con

Gii thch cc thut ng trn menu khi kch phi chut

-V Nt V ng - Ch V Nt -V Hng Ly Nc -V i Nc -V B Cha Nc Sch - V Bm

Cc Loi Van

- Kt Thc Lnh -Lnh B Cong ng - V Nt -V Hng Ly Nc -V i Nc -V B Cha Nc Sch -V Bm - Van Gim p -Van Ngt p -Van Duy Tr p Lc -Van Kim Sot Lu Lng -Van Kim Sot Tit Lu -Van Mc ch Chung -Van X Kh

-Pressure Reducing Valve (PRV): Van Gim p -Pressure Sustaining Valve (PSV): Van Duy Tr p Lc -Pressure Breaker Valve (PBV): Van Ngt p -Flow Control Valve (FCV) : Van Kim Sot Lu Lng -Throttle Control Valve (TCV): Van Kim Sot Tit Lu -General Purpose Valve (DPV): Van Mc ch Chung



Tng t bn v i nc, b cha, van,bm, sao cho ph hp vi mng li thit k ca mnh

6. Hng dn khai bo cc thng s cho m hnh

Khai Bo Cc Thng S u Vo Cho Nt

Vo : Watercad View Flex Tables

m hp thoi Flex Tables

Hoc chn trc tip trn thanh cng c

Chn vo biu tng

- Trong tab Flex Table chn vo Junction Table

Trn cy th mc Tables- Predefined



Hp Thoi Khai Bo Cc Thng S Cho Nt

- Nhp cao cho nt trong ct (Elevation)

To lu vc cp nc (Zone)



Hp Thoi To Khu Vc

Khai bo lu lng cho nt

Kch vo du chm lng () Xut hin hp thoi Demands -Trong ct Demand (Base) nhp vo lu lng ti nt -Trong ct Pattern (Demand) chn biu tiu th cho nt ny -Hoc kch vo du chm lng () to biu -Nu khng khai bo chng trnh s gn gi tr mc nh l FIXED

Kch vo biu tng to mi lu vc

Nhp vo tn qun l



Khai Bo Lu Lng Cho Nt

Ngoi cch trn cn cch na l mun khai bo cho nt no th kch p vo nt khai bo

Khi xut hin bng Modeling Properties ko thanh trt khai bo cc thng s cn thit cho m phng

Nhp cao cho nt

Kch vo du chm lng () ti dng demand collection khai bo lu lng cho nt



Khai Bo Biu Pattern Cho Nt

-C1: kch vo du chm lng () trong ct pattern (demand ) trong hp hoi demands (phn khai bo lu lng nt) -C2: Watercad components patterns

- Chn Hydraulic new (biu tng ) t Tn

- Nhp chui thi gian v h s pattern trong tab hourly

- Ch : trong pattern format c 2 kiu v biu (xem hnh bn)

Thi gian bt u m

phng



Hp Thoi Khai Bo Cc Thng S Cho ng



- Trong tab Flex Table chn vo

pipeTable Trn cy th mc Tables- Predefined

Xut hin bng khai bo cc thng s cho nt

Nhp y thng tin cho tng ng



Gii thch cc thut ng trong bng khai bo cc thng s cho ng

Lable : Nhn on ng Start Node: nt bt u

on ng Hazen-Williams C: h s nhm vt liu

Velocity: vn tc trong ng

Diameter: ng knh ng

Stop Node: nt kt thc on ng

Minor Loss Coefficient (Local): h s tn tht

Headloss Gradient: tn tht dc thy lc

Length (Scaled): chiu di on ng

Material: vt liu ng Flow : lu lng chy qua ng

Ngoi cch khai bo trn, c th kch p vo on ng mun khai bo khai bo cc thng s Cc lm tng t nh khai bo nt hng dn trn.

Ch Trong Phn Khai Bo Vt Liu

Kch vo du chm lng chn loi vt liu

Hp thoi th vin vt liu xut hin

Sau khi chon vt liu xong chn select gn vt liu cho ng

Chn loi vt liu thch hp t danh sch khai bo cho ng

Mi loi vt liu iu c mt h s ring

Cc th s ny c th chnh sa li cho ph hp



Ch : trong qu trnh thao tc VD: gn nhanh hng lot h s nhm trong ct Hazen-Williams C Trn ct Hazen-Williams C kch phi chut chn Global Edit

Trong bng Global Edit Chn Set trong dng Operation Trong dng Value : nhp vo gi tr mun thay th VD:140

Trong Operation c 5 la chn - Set: thay th gi tr hin ti bng gi tr nhp trong value - Add: ly gi tr hin ti cng cho gi tr trong value - Divide: ly gi tr hin ti chia cho gi tr trong value - Multiply: ly gi tr hin ti nhn cho gi tr trong value - Subtract: ly gi tr hin ti tr cho gi tr trong value

Kt qu sau khi thay i



Khai Bo Cc Thng S Cho B Cha Nc



- Trong tab Flex Table chn vo Reservoir

Table Trn cy th mc Tables- Predefined

Sau khi chn Reservoir Table

< Hp thoi Reservoir Table xut hin >

- Label : tn ca b cha nc - Elevation : cao ca b cha

nc

- Zone : khu vc cp nc - Flow : lu lng cp cho mng

li - Hydralic grade: dc thy lc



Khai Bo Cc Thng S Cho Bm

Trong tab Flex Table chn vo Pump Table

Trn cy th mc Tables- Predefined

- Lable: tn bm - Elevation: cao t bm - Pump Definition: nh nga ng cong t tnh bm - Status (Initial): trang thi ban u ca bm - Hydraulic Grade (Suction): tn tht thy lc do u ht - Hydraulic Grade (Discharge): tn tht thy lc do u x - Flow (Total): tng lu lng - Pump Head: ct p lm vic my bm

PUMP HEAD = Hydraulic Grade (Discharge) - Hydraulic Grade (Suction)



Khai bo ng con c tnh my bm. Ti ct Pump Definition trong bng khai bo thng s cho bm Ti dng ca my bm cn khai bo . chn vo du chm lng () xut hin hp thoi khai bo ng cong t tnh cho bm.

- Chn cch khai bo ng cong t tnh trong danh sch x xung

- Shutoff : trng thi bm ng - Design: theo thit k - Max. operating: trng thi bm lm vic ht cng sut

ng cong t tnh ca my bm, ly theo cattalog ca nh sn xut bm

Chn vo biu tng to mi my bm

t tn cho

my bm

Chn kiu ng t tnh



Khai Bo Cc Thng S Cho i Nc

Trong tab Flex Table chn vo Pump Table Trn cy th mc Tables- Predefined

Gii Thch Thut Ng

Hnh nh minh ha (Tank)

- Label: tn i nc - Zone: khu vc cp nc - cao y i nc - Elevation (Minimum): cao mc

nc thp nht - Elevation (Initial): cao mc nc

hin ti - Elevation (Maximum): cao mc

nc ln nht - Volume (Inactive): th tnh nc

khng hot ng - Diameter: ng knh i nc (nu

dng i l hnh tr trn) - Flow (Out net): lu lng ra i - Hydraulic Grade: c thy lc

thay i hnh dng di th kch p ln i tng i nc trn bn v khai bo



Khai Bo Cc Thng S Cho van

V d: khai bo cc thng s cho van PRV

Vo : Watercad View Flex Tables m hp thoi Flex Tables

Trong tab Flex Table chn vo PRVTable Trn cy th mc Tables- Predefined

Hp thoi khai bo van xut hin

- Label: tn van - Elevation: cao ni t van - Diameter (Valve): ng knh van - Minor Loss Coefficient (Local): h s tn tht qua van (ph thuc vo cu to van)

- Hydraulic Grade Setting (Initial): thit lp tn tht thy lc ban u

- Pressure Setting (Initial): thit lp p lc

ban u - Flow: lu lng qua van - Hydraulic Grade (From): dc thy lc

sau van - Hydraulic Grade (To): dc thy lc

trc van - Headloss: tn tht



7. Chy phn tch kt qu.

Sau khi vch tuyn v khi bo cc thng s u vo tin hnh phn tch thy lc

Trn thanh cng c

- Chn vo biu tng test xem c li g xy ra khng

trc khi phn tch. Nu khng c li g xy ra xut hin hp thoi thng bo sau

- Kch vo biu tng chy phn tch thy lc - Kt qu phn tch sau khi chy xong s xut hin hp thoi

thng bo kt qu tng qut (nh anh bn)



8. Xem kt qu phn tch.



Trong tab Flex Table chn vo thuc tnh i tng cn xem kt qu, pipe, junction,tank,

reservoir, Trn cy th mc Tables- Predefined

m hp thoi xem kt qu

Vd: m hp thoi Junction xem cc tnh ton ti cc nt



9. Xut kt qu phn tch. xem kt qu v in kt qu, vn ny c trnh by ngay trong phn gii thiu Menu Report v cc yu t trong menu ny

y v d xut kt qu sang Excel VD: xut kt qu tnh ton t Watercad sang Excel

Trong tab Flex Table chn vo Pipe Table Trn cy th mc Tables- Predefined

Hp thoi Pipe Table xut hin

a. Chn vo biu tng copy

b. M phn mm Excel sau phi chut

chn paste dn kt qu qua Excel



Kt qu sau khi paste sang phn mm Excel

- Ch : kt qu chy m phng cc nt khai bo lu lng ch FIXED

C ngha l ch m phng cho mt gi duy nht. y l gi dng nc ln nht hay ln nht c chy xy ra

Khi khai bo biu Pattern cho nt, ngha l mi gi ti mi nt lu lng ly ra l khc nhau Nh vy khi xut kt qu ch n vic chn gi no xut kt qu



VD: xut kt qu vo mt gi , y chn 18h gi dng nc nhiu nht trong cc gi dng nc

- Trn thanh cng c chn vo biu tng m hp thoi iu khin chy m phng Hay :

- Watercad Analysis EPS Results Browser

1. Sau khi hp thoi EPS Results Browser xut hin, ko thanh trt chn 18h.

2. Trong tab Flex Table chn vo Pipe Table 3. Lm tng t nh hng dn trn paste kt

qu sang excell < nh vy mun xut kt qu sang gi no ch cn lm tng t >

< n cng tng t nh xut kt qu t cc i tng khc >

Xut kt qu cc gi

Tng t Trong tab Flex Table chn vo i tng cn xut kt qu Trn cy th mc Tables- Predefined Vd: chn vo junction table

Hoc : Watercad Report Element Table

< chn vo i tng mun xut kt qu >

Sau khi hp thoi junction table xut hin chn vo biu tng c mi tn xung chn dng Report All Time Steps xut hin mt bng cha kt qu cc gi in n.

- Report current time step: xut kt qu trong bng hin hnh

- Report All Time Steps: xut kt qu tt c cc bc thi gian m phng

- Report in XML: xut kt qu trong bng hin hnh ra file dng XML



10. Kt ni d liu ngoi vo Watercad.

Ngoi vic load file to t m hnh thy lc

Hammer Epanet Submodels Watercad 2004

y hng dn kt ni c s d liu cho vic m phng. VD: nhp cao cho nt, nhp lu lng cho nt, hay to biu pattern, gip vic tao tc nhanh v chnh xc hn.

VD: kt ni c s d liu t Excel Chun b mt file Excel vi d liu nh sau

Ct s th t nhn ca nt c copy tng phn mm Watercad trong junction table paste qua Ecel cho nhanh



V tng t d liu cho khai bo PATTERN

-TN: DO THI l nhn s to cho pattern trong -CHUOI THOI GIAN: l cc gi trong ngy 24h -HE SO PATTERN : l h s s khai bao trong tng gi



Hng dn kt ni d liu

C1: kch trc tip biu tng trn thanh cng c C2: Watercad Tools Modelbuilder Xut hin hp thoi Modelbuilder kt ni d liu

- Chn vo biu tng to mi

- Xut hin hp thoi chn kiu d liu



Trong hp thoi Modelbuilder wizard Ti dng seclect a Data Source Type phn mm Excel 2007 (12.0)

< Ngha l d liu s ly t tp ca Excel 2007 >

Chn vo Browse dn n tp Excel 2007 Sau khi tp Excel c load vo, chn vo show Preview xem trc bn s liu

1 2

3



Chn n v l mt v cc mt nh bm NEXT

Chn n v l m



Chn D liu s gn vo kch bn no ?

1. Current scenario: chon kch bn hin ti

2. New child scenario: cho kch bn mi l con ca kch bn hin ti

Thng s dng trng d liu l kiu g ?

Chn : Lable

1. Chn sheet cha d liu cao gn cho nt

2. Chn kiu l JUNCTION

3. Kha chnh gn l STT cha nhn ca nt

4.Chn dng Cao DO

5.Chn thut tnh l Elevation

6.Chn n v l m



Tng t chn Sheet l Pattern

Chn kiu d liu l: pattern, pattern Curve

Chn dng CHUOI THOI GIAN

Trong Property chn Time from Start v n v l hour

Chn dng HE SO PATTERN

Property chn Multiplier



Sau khi chn finish, phn mm Watercad tin hnh test d liu v gn d liu vo i tng

Sau khi gn d liu xong xut hin bng thng bo v k qu gn



Kt qu sau khi gn thnh cng vo junction table xem kt qu c gn ng cha

Biu pattern c to t vic kt ni c d liu



11. To kch bn m phng (scenario)

Bin tp cc nhm trong tab Alternatives

- Kch vo biu tng m hp thoi ch tab Alternatives Hoc

- Watercad Analysis Alternatives

- Khi hp thoi Alternatives xut hin - Ti thuc tnh demand, chn Remane i thnh KO CO CHAY vic lm ny nhm to s qun l trnh nhm ln

- Trn thanh cng c kch vo biu tng m hp thoi m phng theo kch bn

Hoc - Watercad Analysis Scenario

- Towng t i tn base thnh KO CO CHAY trong hp thoi Scenario d qun l

- Kch p vo nhn KO CO CHY hoc kch phi chut chn Properties

- Khi kch p vo nhn KO CO CHAY ti dng demand chn thuc tnh khng chy do ta to Alternatives

KCH P CHUT



Tng t to m phng kch bng cho trng hp c chy xy ra. VD: v d trng hp c chy xy ra trong gi dng nc ln nht ti nt J-16

- Ti tab Alternatives dng Demand chn thuc tnh KO CO CHY phi chut new child Alternative < ngha l to m thuc tnh nhng k thng tt c thuc tnh m KO CO CHAY >

Sau khi to thuc tnh mi k tha thuc tnh c bn i tn Demand Alternative 1 thnh CHAY 3H-J16 d qun l

- Kch p chut vo nhn CHAY 3H J16 m hp thoi khai bo 1 m chy vo nt J16

Chn vo dng nt J-16

Nhp vo lu lng m chy l 20l/s v to Pattern cho 3h chy



Chn vo du chm lng () to biu pattern cho 3 gi chy xy ra

Ch : Trong Watercad c th khai bo ngn gn trong biu Pattern xem bng khai bo trn

Ch cn nhp vo 4 mc thi

gian Watercad vn hiu cho 24h



Tng t chuyn qua tab Scenario ti nhn KO CO CHAY

- Phi chut New child scenario - i tn Scenario 1 thnh 1 DAM

CHAY 3H < Kch p vo nhn 1 DAM CHAY 3H khai bo trong trng hp c chy>

- Ti dng Demand chn CHAY 3H-J16 c khai bo tab Alternatives

< nh vy: qua VD trn ta c th to nhiu kch bn khc nhau cho vic m phng v phn tch chn ra phng n thch hp nht >

< Vi nhiu tnh nng khc trong tab Alternatives gip cho vic qun l tt hn >



12. Hng dn chy kch bn.

- Ti tab Scenario ti dng kch bn to

phi chut Compute Batch Run - Hoc:

Trong Hp thoi Batch run, chn tt c cc m hnh chy phn tch Sau khi nh du chn m hnh bm vo nt batch chy phn tch < chn yes bt u chy phn tch >

< nh vy kt qu ca 2 m hnh c chy v khng c chy c chy phn tch >

Ch : k qu th hin l kt qu ca m hnh no ta chn VD: m hnh no ta nh du th k qu s th hin t m hnh

1. Chon vo m hnh 2. Chn vo biu tng th hin k

qu

Nu mun thay i th hin kt qu ta lm theo bc sau y



13. Hng dn gn nhn cc i tng trn bng v.

Mun gn nhn cho i tng no th ch vic khai bo nhn cho i tng

VD: gn nhn cho ng pipe Gn nhn th hin chiu di-ng knh lu lng v vn tc qu ng

Trong hp thoi

Thc hin: Watercad View Element Symbology

Trn thuc tnh Pipe

Kch phi chut annotation New

- Field Name: chn nhng nhn c sn - Free form: to mi nhn do ngi dng nh nga

- Kch vo du chm lng () to mi nhn

Ch : + selection Set: chn kiu All E lements +Height Multiplier: chiu cao ch th hin



Kch vo nt Append to nhn ty theo mc ch khai bo

G tin t cho thuc tnh < d qun l >

Vd: khai bo ng knh th nhp ch s u tin l D (Vd: D100, D200,)



Lm tng t cho cc nhn lu lng, vn tc, chiu di ng ta c kt qu sau

Nhp vo Apply ng v nhp Oke ng v thot khi hp thoi

Sau khi to nhn hon tt bm OK



Kt qu cc nhn th hin trn bn v

V tng t to nhn cho Nt (JUNCTION) v cc i tng khc

Ch : nn i tn li cho d qun l hay v do phn mm mc nh VD: ti Pipe i tn nhm thuc tnh ta va to ra l D-L-Q-V sau ny d nhn bit nhm no cha nhng thuc tnh no

14. Hng dn thuc tnh nh du mu cho cc i tn

VD: mun nh du mu cho nhng on ng c ng knh ging nhau l mt mu ring bit

Trn pipe phi chut chon new color coding



File name: chn Diameter Selection set : chn All Elements Minimum: nhp vo ng knh nh nht Maximum: nhp vo ng knh ln nht Steps: bc nhy ca ng knh

Ti ct VALUE nhp vo ng knh V ct Color chn mu cho ng knh ngha: tt c cc ng knh

Trn l v d vi ng knh cc bn c th lm vi (vn tc ,) hoc cc thuc tnh khc Mun tt nhn hoc nh du mu trn bng v Thc hin: b nh du tick i vi thuc tnh nhn mun tt, cn mun xa vnh vin ch vic chn

nhn v delete nhn

Gi tr mu th hin i vi cc gi tr ng knh khng nm trong iu kin trn



15. Hng dn xem kt qu vi cc biu (graphs)

Trn thanh cng c kch chon biu tng

Hoc : Watercad View Graphs

Chn vo on ng hay nt mnh mun xem dng biu Sau khi chn xong i tng ng ,nhp vo apply xut hin bn

Chn dng Line-Series Graph

Chn vo 2 kch bn hay chn

mt kch bng bt k

xem kt qu th hin biu

on ng s xem kt qu biu

Chn thuc tnh cn xem trn

bng bn

VD: xem vn tc



Tab Graph: xem bn

Tab Data: cha d liu v vn tc

Qua k qu phn tch xem xt hiu chnh sao cho ph hp



16. Mt s cng thc tnh ton

Friction and Minor Loss Methods

Chezy's Equation

Chezy's equation is rarely used directly, but it is the basis for several other methods, including Manning's equation. Chezy's equation is:

Colebrook-White Equation The Colebrook-White equation is used to iteratively calculate for the Darcy-Weisbach friction factor:



Hazen-Williams Equation

The Hazen-Williams Formula is frequently used in the analysis of pressure pipe systems (such as water distribution networks and sewer force mains). The formula is as follows:

Darcy-Weisbach Equation

Because of non-empirical origins, the Darcy-Weisbach equation is viewed by many engineers as the most accurate method for modeling friction losses. It most commonly takes the following form:



Swamee and Jain Equation

Note: The Kinematic Viscosity is used in determining the friction coefficient in the Darcy-Weisbach Friction Method. The default units are initially set by Bentley Systems.



Manning's Equation

Note: Manning's roughness coefficients are the same as the roughness coefficients used in Kutter's equation.

Manning's equation, which is based on Chezy's equation, is one of the most popular methods in use today for free surface flow. For Manning's equation, the roughness coefficient in Chezy's equation is calculated as:



Minor Losses

Minor losses in pressure pipes are caused by localized areas of increased turbulence that create a drop in the energy and hydraulic grades at that point in the system. The magnitude of these losses is dependent primarily upon the shape of the fitting, which directly affects the flow lines in the pipe.

Typical values for fitting loss coefficients are included in the Fittings Table.

Generally speaking, more gradual transitions create smoother flow lines and smaller headlosses. For example, the figure below shows the effects of entrance configuration on typical pipe entrance flow lines.



Roughness ValuesManning's Equation

Roughness ValuesDarcy-Weisbach Equation (Colebrook-White)



Roughness ValuesHazen-Williams Equation

Commonly used roughness values for different materials are: Hazen-Williams Roughness Coefficients (C)



Typical Roughness Values for Pressure Pipes

Typical pipe roughness values are shown below. These values may vary depending on the manufacturer, workmanship, age, and many other factors.



Fitting Loss Coefficients For similar fittings, the K-value is highly dependent on things such as bend radius and contraction

ratios.



HNG DN S DNG

I. TNG QUAN V PHN MM WATERCAD ..........................................................................................3

1. Khi ng phn mm WATERCAD . ..................................................................................................3

2. Gii thch cc thut ng trong menu Watercad .................................................................................4

II. HNG DN CHY MT M HNH D N. ................................................................................... 18

1. Thit lp cc thng s u vo cho Watercad . .............................................................................. 18

2. Thit lp n v cho bn v. ............................................................................................................... 23

3. Ghi ch cho d n th hin. .............................................................................................................. 24

4. Tin hnh vch tuyn mng li cp nc trn mt bng. .......................................................... 24

5. Gii thch cc yu t trn thanh cng c layout v menu .............................................................. 26

6. Hng dn khai bo cc thng s cho m hnh ............................................................................. 27

7. Chy phn tch kt qu. ...................................................................................................................... 40

8. Xem kt qu phn tch. ....................................................................................................................... 41

9. Xut kt qu phn tch. ....................................................................................................................... 42

10. Kt ni d liu ngoi vo Watercad. ............................................................................................. 45

11. To kch bn m phng (scenario) ................................................................................................ 54

12. Hng dn chy kch bn. ............................................................................................................. 58

13. Hng dn gn nhn cc i tng trn bng v. .................................................................... 59

14. Hng dn thuc tnh nh du mu cho cc i tn............................................................ 62

15. Hng dn xem kt qu vi cc biu (graphs) ..................................................................... 64

16. Mt s cng thc tnh ton ............................................................................................................. 66

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