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Low Temperature Screw Chiller
New Type Low Temperature Chiller/Water Chiller Plant
  • New Type Low Temperature Chiller/Water Chiller Plant
  • New Type Low Temperature Chiller/Water Chiller Plant
  • New Type Low Temperature Chiller/Water Chiller Plant
  • New Type Low Temperature Chiller/Water Chiller Plant

New Type Low Temperature Chiller/Water Chiller Plant

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  • Features
  • Technical Data
  • Application
  • Certification

Features

1. Compressor: adopt international brand semi closed 5:6 non symmetrical double screw type air cooled special type compressor.
2. Heat exchanger: evaporator use high efficient shell and tube heat exchanger, condenser use high efficiency copper pipe+hydrophilic aluminum fin; with high pressure, high heat transfer efficiency, maintenance free, long service life, etc.;

3. Control system: using SIEMENS control system, advanced PLC control technology, can accept the programming, perfect communication function;
4. The electrical system: SIEMENS, Schneider and other national brands of electrical components, waterproof type control cabinet;
5. Man-machine interface: Chinese and  English man-machine interface, touch type liquid crystal display operation, simple procedures, one key to start, automatic operation;
6. Chiller maintenance: chiller adopts integral design, compact structure, simple, strong corrosion resistance, with waterproof control cabinet, to ensure that the unit can be placed outside the long-term is not easy to fade, corrosion.
7. The choice of environmental protection type R407C or R134a refrigerant.
 
Water-cooled screw unit -20℃(Single compressor)

 Model

NLW-

UNIT

36.1f

49.1f

65.1f

70.1f

88.1f

91.1f

111.1f

117.1f

128.1f

138.1f

Cooling capacity

Btu

122832.00

167188.00

221780.00

238840.00

300256.00

320728.00

378732.00

399204.00

436736.00

470856.00

RT

10.23

13.92

18.47

19.89

25.00

26.70

31.53

33.24

36.36

39.20

Kw

36.00

49.00

65.00

70.00

88.00

94.00

111.00

117.00

128.00

138.00

×104Kcal/h

3.10

4.20

5.60

6.00

7.60

8.10

9.60

10.10

11.00

12.00

Control mode

PLC automatic control

power source

380V/3N/50Hz

         Compressor

 Type

5-6 asymmetric semi-hermetic twin screw compressors

Startup type

Y-△

 Energy regulation

0-16.5-33-50-66-83.5-100%

0-12.5-25-37.5-50-62.5-75-87.5-100%

 Qty

1

Input power

KW

20.80

27.40

34.40

37.70

46.60

50.00

56.30

59.20

65.20

71.10

Operation Current

A

36.20

17.70

59.90

65.60

81.80

87.00

98.00

103.00

113.40

123.70

Condenser

Type

High efficiency copper dry type shell-and-tube heat exchanger

 Water pipe connection

 

DN50

DN65

DN80

DN100

 Cooling Water Flow

m³/h

12.90

17.40

22.60

24.50

30.60

32.70

38.00

40.00

43.90

47.50

Water pressure

kpa

44.00

45.00

45.00

45.00

46.00

47.00

48.00

49.00

55.00

58.00

   Evaporator

 Type

Horizontal shell-and-tube/Coil type high efficiency copper heat exchanger

 Water pipe connection

 

DN50

DN65

 Freezing water Flow

m³/h

7.80

10.50

14.00

15.00

19.00

20.30

24.00

25.30

27.50

30.00

Water pressure

kpa

47.00

48.00

48.00

48.00

48.00

49.00

50.00

50.00

54.00

58.00

Refrigerant

 Type

R22

kilogram

kg

13.30

18.10

24.00

25.90

32.50

34.70

41.00

43.20

47.30

51.00

Safety protection

high and low pressure protection,overload protection,over temperature protection,phase sequence protection,etc.

Dimensions (L*W*H)

 Length

mm

2455

2455

2500

2570

2860

2860

2860

2860

2860

3180

Width

mm

1100

1100

1100

1100

1100

1100

1100

1100

1100

1100

 High

mm

1450

1450

1450

1524

1550

1590

1630

1680

1740

1820

Net Weight

kg

700

730

900

1090

114

1400

1430

1470

1500

1780

Operating weight

kg

760

770

980

1220

1320

1620

1660

1700

1760

2000



 Model

NLW-

UNIT

152.1f

181.1f

191.1f

208.1f

226.1f

234.1f

270.1f

300.1f

323.1f

361.1f

Cooling capacity

Btu

518624.00

617572.00

651692.00

709696.00

771112.00

788172.00

921240.00

1023600.00

1102076.00

1231732.00

RT

43.18

51.42

54.26

59.09

64.20

65.63

76.70

85.23

91.76

102.56

K w

152.00

181.00

191.00

208.00

226.00

231.00

270.00

300.00

323.00

361.00

×104Kcal/h

13.00

16.00

16.00

18.00

19.00

20.00

23.00

26.00

28.00

31.00

Control mode

PLC automatic control

power source

380V/3N/50HZ

         Compressor

 Type

5-6 asymmetric semi-hermetic twin screw compressors

Startup type

Y-△

 Energy regulation

0-12.5%-25%-37.5%-50%-62.5%-75%-87.5%-100%

 Qty

1

Input power

KW

79.10

91.80

97.00

105.10

113.10

116.70

137.20

152.10

161.60

 178.10

Operation Current

A

137.60

159.70

168.80

182.90

196.80

203.10

238.70

264.70

281.20

309.90

Condenser

Type

High efficiency copper dry type shell-and-tube heat exchanger

 Water pipe connection

 

DN100

DN125

DN150

 Cooling Water Flow

m³/h

52.50

62.00

65.40

71.10

77.00

79.70

92.50

102.70

110.10

122.50

Water pressure

kpa

58.00

58.00

65.00

70.00

70.00

71.00

71.00

72.00

72.00

72.00

   Evaporator

 Type

Horizontal shell-and-tube/Coil type high efficiency copper heat exchanger

 Water pipe connection

 

DN80

DN100

DN125

 Freezing water Flow

m³/h

32.50

40.00

40.00

45.00

47.50

50.00

57.50

65.00

70.00

77.50

Water pressure

kpa

58.00

67.00

72.00

72.00

72.00

72.00

72.00

72.00

72.00

73.00

Refrigerant

 Type

R22

kilogram

kg

56.20

66.90

70.60

76.90

83.50

86.50

99.80

110.90

119.40

133.40

Safety protection

High and low pressure protection; high and low pressure protection; over temperature protection; overload protection ,over temperature protection, phase sequence protection, etc

Dimensions (L*W*H)

 Length

mm

3225

3225

3225

3505

3605

3605

3720

3720

3930

3930

Width

mm

1100

1100

1100

1100

1100

1100

1100

1100

1100

1100

 High

mm

1830

1830

1880

1880

1950

1980

1880

1950

1970

2020

Net Weight

kg

1970

2190

2440

2480

2650

2950

3080

3300

3470

3620

Operating weight

kg

2190

3380

2570

2740

2950

3210

3330

3570

3810

3930


Note:
1.Freezing water inlet temperature -15℃, freezing water outlet temperature -20 ℃; cooling water inlet temperature of 30 ℃, cooling water outlet temperature of 35 ℃;  
2.Temperature conditions: Freezing water outlet temperature range 5 ℃-15 ℃, cooling water inlet temperature range 19 -33 ℃;                                                      
3.Safe operating range : Freezing water inlet temperature 9℃-20℃;                                                                                                                
4.The using compressor is closed turbine  imported from Europe and the United States , superior performance, strong ability of anti-effusion;                                      
5.Nominal operating conditions in the evaporator and condenser water side fouling factor of 0.018m² ℃ / kw, condenser water side fouling factor of 0.044 m² ℃ / kw;              
6. Water side of the evaporator and condenser, designed to withstand a pressure of 1.0MPa;                                                                                        
7. The actual head of Host is that the pump head minus head losses within the host;                                                                                                
8.In addition to the specifications and requirements, we can provide non-standard products according to customer requirements.
Application:
Our water cooled screw chillers, water cooled screw type low temperature unit, flooded type water hillers, air-cooled screw chiller, air-cooled, water-cooled box type chillers products have been widely used in chemical industry, chemical fiber, plastics, oil, food, as long as the industry, printing, electroplating, electronics and other industries

Recommend products:
Usually cooling tower offers chilled water to water cooled chiller, here we recommend our dry cooler to instead of cooling tower.
Structure Type Model Photo Cooling cpacity (kw) Air volume (m3/h) Fan Diameter(mm) Air discharge direction Key documents
Plate Type D1-005-1x350~D1-649-16x630 5~649 2828~263503 350~630 Vertical Brochure of D1
Horizontal
V type D2-148-4X630~D2-921-20x630 148~921 76459~351663 630 Vertical Brochure of D2
Plate Type D3-042-1X800~D3-607-12X800 42~607 21454~227449 800 Vertical Brochure of D3
V type D4-176-4X800~D4-792-16X800 176~792 21454~227449 800 Vertical Brochure of D4
 

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