Flooded Water Cooled Screw Chiller
System composition of water-cooled screw chiller
The water-cooled screw chiller is mainly composed of semi-enclosed screw compressor, shell and tube condenser, filter dryer, thermal expansion valve, shell and tube evaporator, and electrical control part.
Water cooled screw chiller is also a kind of water chiller, because its main component uses screw compressor, so the name can be called water cooled screw chiller. Its frozen water temperature range is 5℃~30℃, can be widely used in plastics, electroplating, electronics, chemical, pharmaceutical, printing, food processing and other industrial freezing process to use frozen water in the field, or large shopping malls, hotels, factories, hospitals and other central air conditioning engineering to use frozen water in the field of centralized cooling.
Water cooled screw chiller product features
(1) The compressors of the unit are equipped with famous brand semi-closed screw compressors and electric control components, and the condenser and evaporator made of high efficiency and high quality copper tubes for heat exchange;
(2) Equipped with all kinds of safety protection devices, stable performance, low noise, long service life, simple operation; Using liquid crystal display man-machine interface, simple and convenient operation, running status at a glance;
(3) The model adopts a single compressor or multiple compressor combined refrigeration system. The compressor can run automatically and alternately according to the load change, and balance the running hours of each compressor, so as to save energy consumption and extend the service life of the chiller. Easy to adjust energy, more energy saving at partial load;
(4) Open structure, the machine appearance is beautiful, simple structure, can check the operation of the unit at any time, simple installation and maintenance.
Specification
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Parameters of screw chiller |
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Type |
DHT-30W |
DHT-40W |
DHT-50W |
DHT-60W |
DHT-70W |
DHT-80W |
DHT-90W |
DHT-100W |
DHT-120W |
|
|
Refrigerating capacity(W) |
Kcalh X 10³ |
88 |
119 |
148 |
170 |
199 |
228 |
268 |
284 |
335 |
|
MW |
102 |
138 |
172 |
198 |
231 |
265 |
312 |
330 |
390 |
|
|
USRT |
29 |
39 |
49 |
56 |
66 |
75 |
89 |
94 |
111 |
|
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Power supply |
3PH-380V-50Hz |
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Refrigerant |
R22/R407C/R134a |
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Refrigerating circuit |
111 |
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Throttling gear |
Thermal expansion valve/electronic expansion valve |
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Compressor |
Type |
Semi-enclosed screw type |
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Straing Method |
T-∆/duplex winding |
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Energy control |
33%-66%100% |
25%-50%-75%-100% |
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Input Power(KW) |
23.3 |
30.7 |
38.5 |
42.2 |
48.5 |
56 |
63 |
66.3 |
79.6 |
|
|
Rated Current(A) |
39 |
52 |
65 |
71 |
86 |
94 |
106 |
111 |
134 |
|
|
Condenser |
Type |
High efficiency external threaded copper shell tube type |
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|
Water flow rate (m³/h) |
21.5 |
29 |
36.2 |
41.3 |
48.1 |
55.2 |
64.5 |
68.2 |
80.8 |
|
|
Head loss(Kpa) |
40 |
40 |
40 |
40 |
45 |
45 |
50 |
50 |
50 |
|
|
Water pipe specification |
DN65 |
DN80 |
DN80 |
DN80 |
DN80 |
DN80 |
DN100 |
DM100 |
DM100 |
|
|
Evaporator |
Type |
High efficiency inner threaded copper shell tube type |
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|
Water flow rate(m³/h) |
17.5 |
23.7 |
29.6 |
34 |
39.7 |
45.6 |
53.7 |
56.7 |
67.1 |
|
|
Head loss(Kpa) |
60 |
60 |
60 |
60 |
60 |
60 |
65 |
65 |
65 |
|
|
Water pipe specification |
DM65 |
DN80 |
DN80 |
DN80 |
DN80 |
DN8O |
DN100 |
DH100 |
DM100 |
|
|
Safety device |
Overload protection, high and low pressure protection, exhaust overheating protection, anti-freezing protection, power reverse phase protection, oil pressure protection |
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Noise(dB) |
55 |
55.6 |
56.5 |
59.7 |
60.2 |
60.4 |
60.8 |
61 |
63.8 |
|
|
Machine dimension |
Length：mm |
2000 |
2200 |
2400 |
2600 |
3000 |
3000 |
3000 |
3000 |
3100 |
|
Wide：mm |
750 |
750 |
850 |
850 |
900 |
900 |
1000 |
1000 |
1100 |
|
|
High: mm |
1550 |
1550 |
1600 |
1600 |
1750 |
1750 |
1800 |
1800 |
1900 |
|
|
Machine weight(Kg) |
960 |
990 |
1260 |
1380 |
1450 |
1520 |
1650 |
1750 |
1950 |
|
|
Operating Weight(Kg) |
1100 |
1150 |
1420 |
1550 |
1650 |
1700 |
1830 |
1950 |
2150 |
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