flooded water cooled screw chiller 2009 11

8/21/2019 Flooded Water Cooled Screw Chiller 2009 11

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Midea Screw Chiller Flooded Type

Creates A Better Life

06/27/15


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R134a units

Single head unit: 364kw 750kw

!ual head unit: "25kw 1500kw

Single head

Single head

Dual heads

Dual heads


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R22 units

Single head unit: 465kw #"5kw

!ual head unit: 1050kw 1#70kw

Single head

Single head

Dual heads

Dual heads


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Water-cooled Screw Chiller

FEATRES

Se!i-her!etic twin-screw co!pressor $%&ust S'( &earings) *%re than "0)000hrs ser+i,e life-

Flooded series" .ternal %il searat%r) high effi,ien,

#aria$le slide %al%e position

4 stage %utut %r steless %utut ,%ntr%lling

re,isel *at,h l%ad

Co!$ined chec& ' shuto(( %al%e on dischar)e

Si)ht )lass (or %iewin) oil

*MS co!pati$le


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Radial bearing： 5 sets

Axial bearing： 6 sets

α Balance piston

Compared to traditional

design, which uses 9 sets

bearings, the life span can

be prolonged 25!"5 times

Rotor

Screw co!pressor &ey co!ponents


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Motor


#nlet guide baffle design,

which ma$es motor

winding temperature

decreases %&!2&℃

'otor made of highefficienc( cast steel sheet

)uper*wide suction flow

tunnel, no pressure loss+ell cooled down, ma$e sure

motor can run well under

an( load


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+et-(ilter type oil separator


)eparate the oil from refrigerant, ma$e sure it

sta( inside the compressor


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Slide %al%e


o ad-ust the passing

refrigerant gas .olume b(

changing the effecti.e

length of the rotor


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1,ischar)e te!p. sensor

2,Sprayin) %al%e

controlled $y te!p.

3,Si)ht )lass

4,Electric !a)netic %al%e

/,Sprayin) inlet

Alied additi%n :

hen the ,%*ress%r need t% w%rk under &ad ,%nditi%n) ie w%rk under high

,%ndensing ressure and l%w e+a%rating ressure) ,%nseuentl the

dis,harge gas te* and lu&ri,ant te* %r *%t%r te* will &e +er high) s%

the r%te,ti%n de+i,e *ight &e a,ti+ated and ,%*ress%r will &e st%ed

n %rder t% *ake sure the ,%*ress%r ,an w%rk under these kind %f ,%nditi%ns)

we ,an intake s%*e liuid refrigerant t% ,%%l d%wn the sste*

Re(ri)erant sprayin) de%ice


From

condenser

From

condenser


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Capacity ad0ust!ent de%ice


4-sta)e ad0ust!ent


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Capacity ad0ust!ent de%ice


/1 stepless

ad0ust!ent


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u$rication syste!



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Electrical parts


r%te,ti%n *%dule

iring ter*inals

C te*

sens%r


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u$ricant oil (ilter



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Suction )as (ilter



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/unction

o pre.ent discharge

gas from flowing bac$

to the compressor

5ra%ity type6

installed %ertically

ischar)e one-way %al%e



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/unction

Cut off the connection of

the s(stem pressure and

compressor internal

pressure, con.enient for

maintenance

Suction and dischar)e cut-%al%e



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7il heater


o heat lubricant oil before starting the compressor,

ma$e sure the refrigerant e.aporated and come out

from the oil


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8 Electrical!a)netic %al%e (orcapacityad0ust!ent

8 Capillary (or oiltrans!ittin)

8 E8ternal oil inta&econnection

8 7il le%el si)ht)lass

8 u$ricant (ilterconnection

7thers parts



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8 ow pressure )au)e

connection

8 re(ri)erant char)in)connection

8 Maintenance connection

8 Re(ri)erant sprayin)

inta&e connection 9to

cool down !otor:


7thers parts


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8 L%w %il le+el

dete,ti%n

de+i,e

8 9il dis,harge+al+e


7thers parts


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0r(*t(pe e.aporator0r(*t(pe e.aporator

RefrigerantRefrigerant

1iuid separator1iuid separator1iuid separator1iuid separator

ChilledChilled

water water

/looded*t(pe e.aporator/looded*t(pe e.aporator

Water cooled screw chiller syste!

E%aporator


ChilledChilled

water water

ChilledChilled

water water

ChilledChilled

water water




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CompressorCompressorCompressorCompressor

3xpansion .al.e3xpansion .al.e3xpansion .al.e3xpansion .al.e

3.aporator3.aporator3.aporator3.aporatorCondenserCondenserCondenserCondenser

4il seperator4il seperator4il seperator4il seperator 4il filter4il filter4il filter4il filter

4il cooler4il cooler4il cooler4il cooler4il pump4il pump4il pump4il pump

4il filter4il filter4il filter4il filter

Sste* is *%re e+a%rating area) higher effi,ien,

Screw chiller with (looded-type e%aporator


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C%de a1)a2 &1)&2 ,1),2 d1)d2 e1)e2 f1)f2

a*eC%%ling

water inletC%%ling

water %utlet$efrigerant

inlet$efrigerant

%utlet(usi&le

lug!is,harge

+al+e

Water cooled screw chiller syste! Condenser6 shell-and-tu$e type


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An)le %al%e

Water cooled screw chiller syste!

Au8iliary parts

Filter-drier

Electro!a)netic

%al%e

Si)ht )lass


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;C control

Toucha$le screen

Control syste!

;%ti%n 1<

4-sta)e ad0ust!ent or

stepless ad0ust!ent

*MS co!pati$le

9optional:


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;C* control

Toucha$le

screen

Control syste!

;%ti%n 1<



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Water pipin) syste!

9chilled water syste!:

a e* Sens%r= & ressure ther*%stat , Sh%,kr%%f >%int=

d Butterfl +al+e= e ressure gauge= f her*%*eter

g Aut%*ati, dis,harge +al+e= h water u*=

i !rain +al+e= > ?@filter= k ater fl%w swit,h


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Water pipin) syste!

9coolin) water syste!:

a Sh%,kr%%f >%int= & e* sens%r= , Butterfl +al+e=

d ressure gauge= e her*%*eter= f latinu* resistan,e ther*%*eter=

g Aut%*ati, dis,harge +al+e= h ater u*= i !rain +al+e=

> ?@filter= k ater swit,h


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flooded water cooled screw chiller 2009 11

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