FLOODED TYPE
WATER COOLED CHILLER
NOMENCLATURE
Refrigerant circuit
Dimension
Side view
Front view
Main Components
2 compressors
5 sets 6
rotors
LUCIFFER/HONEYWELL
regulating meganetic
valve
Japan Kobe
Steel oil
separator
inside
French
SOMER high
efficient
motor
Germany
high accuracy
rotor bearing
Main components parts
Double screw compressor( modified according to our design requirement ）
，reduce pressure drop
，increase efficiency
1、Enlarge outlet size
size，
drop，
2、Modify capacity ratio （different capacity ratio will be choosen
according to different working conditioning ）
3、enlarge rotor discharge outlet volume to increase the efficience
4、high quality oil separator design
㎡
5、check valve optimization design ，pressure drop less than0.02kg/c
than0.02kg/c㎡
Adopted in ：single compressor 30RT
～300RT
，which is adopted in air
30RT～
300RT，
conditioner, industry etc
Main components
Working procedure
suction
discharge
seal
compress
Main components
Flooded evaporator
Main Component
Flooded type evaporator
：
evaporator：
working theory
：adopting big vessel boiling heat transfer
theory：
theory, chilled tube is totally immersed in liquid
refrigerant , the heat of the water inside the tube will be
removed by the refrigerant through heat transfer to
make it cool
Fluid
baffle
Refrigera
nt outlet
water
inlet
Water
outlet
coil
Refrigera
nt inlet
Main Component
Flooded type evaporator features
：
features：
1.Refrigerant is under boiling situation, water flow is in turbulenc
which increase heat transfer efficiency. Superheat of outlet
referigerant is around 2~3
2~3℃ , water flows into the cooper tube
which is easily cleaned
2. Comparing with falling film exchanger , the constructure is
more simple and the heat transfer efficiency is close. Comparing
with dry type evaporator, the heat transer efficiency is high.
Dry Type Evaporator(For Comparasion)
Low pressure overheat gas
Shell plate
Chilled water outlet (7
(7°°C)
End cover
shell
Copper and GI steel baffle plate
Chilled water inlet (12
(12°°C)
Refrigerant division plate
Low pressure low temperature refrigerant liquid
Main Component
Oil Separator
Add 2nd oil separator to ensure good oil return R22/R134A)
Self developped high efficient oil separatorto ensure 3ppm return
which has been adopted in Hefei General constitute and fushen
test equipment
Main Component
Electronic expansion valve
Main Component
Electronice expansion valve
——
suction gas over heat control
valve——
——suction
Main Component
Electronice expansion valve
——
suction gas over heat control
valve——
——suction
Gas suction overheat control system is combined by electronic
expansion valve, pressure sensor, temperature sensor and controller.
P1 of the evaporator outlet is transferred to controller through
pressure sensor and overheat is transferred to controller through
temperature sensor,after controller handling the signal, it will output
the instruction to stepping motor of the electronic expansion valve,
then the valve will be opened to the position needed to guarantte the
liquid requirment of the evaporator. No matter under any situation
like standard ,varialbe working condition or full load,the high COP
will be achieved
Main Component
orificed plate－throttle system
it is based on Bernoulli
equation which makes
refrigerant partely shrinked at
the oil surface plate to reduce
the temperatuer and pressure
Main Component
Oil surface plate－throttle system
the oil surface plate is combined by two plates with holes which
adopts 2 steps throttle. When refrigerant passes 1st plate, it arrives at
saturated liquid line and produce some flash gas which will occupy
some space and keeps flashing, which makes the refrigerant
fluctuation within 20% when passing 2nd plate to adjust the refrigerant
circulating volume automatically. At the 2nd plate, different pressure
keeps change due to variable flow and goes to balance
Main component
Oil surface plate－throttle system
1
2
3
4
壓力
3
2
1
4
pressure
置
位
position
Main component
Injection Pump
Main component
Injection Pump
1)Compact design and simple
constructure
2)Efficiency above
90
above90
90％
3)Oil return effect achieved with less
power consumption
4)No moving parts ensures reliable
performance
5)Comparing with other factories, oil
return is 15% higher
Main component
microcomputer control system
Compressor coil overheat temp protect and
overload protect
Engine oil preheat time on/off
Water flow swtich interlock
Chilled water supply overlow temp protect
Gas discharge over high temp protect
Power failure memory
Frequently on/off protect
Abnormal voltage protect
Oil level over low protect
High/low pressure protect
Controller Function ：
�
�
�
�
�
�
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Auto anti freezing monitor after duty off
and seamless exchange with normal
condition
Compressor capacity regulating on
chilled water temperature basis
On/off according to load
With remote control （RS-485
RS-485
RS232
RS-485、RS232
standard interface
interface）
Doube compressor working in turn
Running time limitation
running time accumulation
Time on/off
self diagnostic
alarm
Function display：
�
�
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Set point can be modifed
Running with LED
Gas discharge temp
Ambient temperature,
outlet/inlet water temp
Main
Component List(HWFS)
No.
Component name
Brand name
1
compressor
Bizter
2
tube and shell condenser
K-Hammer
3
flooded type evaperator
K-Hammer
4
oil separator
K-Hammer
5
exchanger tube
Nikko/Xintaitong/Hipro
6
two-stage orifice plate
K-Hammer
7
refrigerant
Cuhua/DuPont
8
refrigerant oil
CPI
9
PLC
Siemense
10
heat over protection relay
Schneider
11
electromagnetic contactor /electronic expansion
valve
/Danfoss
Schneider
Schneider/Danfoss
12
high/low pressure switch
Junle
13
high/low pressure metre
Fuguo
14
Fusible plug
MUELLER
15
safety valve
Beiting
Unit Features
：
Features：
1.. Multiple function
can be used for air conditioning, ice maker n and supplying hot water for
live to increase the usage
2. High outlet water temp
2 types heat recovery ： standard
standard： R22
R22，
Max. water suppl temp 55
the other type is high water supply temp
55℃；the
high efficiency and max water supply temp 65
R134a ，high
65℃；
4. Self produced evaporator and condensor 。
5. specialized design flooded water chiller compressor
6.high efficient oil separator which no needs complicated oil pump system
and changeable oil filter mounted inside 。
7. humanization touch screen
Difference between normal water chiller
and flooded type water chiller
Different
items
Normal water
cooled chiller
Flooded water cooled chiller
compressor
Normal
Special designed for flooded chiller
evaporator
Dry type--refrigerant liquid
flows inside
copper tube ,
chilled water
flows outside of
refrigerant tube
Flooded type--refrigerant liquid flows outside of the copper tube, chilled water
flows inside the copper tube which makes refrigerant boiling totally to achieve
high heat transfer efficiency. Same time, water inside tube is good for system
clean
Throttle
elements
With orificed
plate and
thermal
expansion valve
With orificed plate and electronic expansion valve
Oil separator
No
With high efficient oil separator
Advanced Machinery
CNC PLASMA/GAS
CUTTING MACHINE
automatic
submerged-arc
welding machine
Auto Straightener
cutting machine
Refrigerant ration
filling machine
Auto bending
machine
Refrigerant
recovery
machine
CNC expansing
machine
Multi stage
vacuum air
pump
Testing Equipment
Item
Description
Specification
Origin
1
Halide leak detector
AZ-3
Imported from Japan
2
Thickness gauge
LA-10
Beijing
3
Hardness gauge
HLD
Beijing
4
nigrometer
TD-210
Zhejiang
5
X-ray testing machine
XXQ-2505D
Liangning
6
Punching testing
machinee
JB-300B
Jinan
7
impact testerhand drilling
machine
V( U )-A
Dalian
8
high speed
processing
speedprocessing
machine
WS-V
Taiwan
Unit testing
10-6Pa
1. Air tight test: sensitivity ×10-6Pa
10-6Pa··m3/s(leakage 7.5g/a)
2. Hydrostatic test :
3. Operational test
4. Cooling capacity test
5. Heating capacity test
6. Pressure loss of water side test
7. Noise test
8. The unit appraisal working condition test:1.max load working condition
test2.low temperature working
condition test
3.changing working condition test
9. Unit safety test
Products Introduction—Unit Testing
Electricity safety test
1.protecting from electric shock test
2.voltage change test
3.temperature limit test
4.leakage of electric test
5.appliance strength test
6.earth resistance test
7.humidity resistance test
8.electroplated part salt air test
9.adhesive force on covering parts test