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Marine refrigeration unit

Short Description:

Application : Marine refrigeration unit: Marine refrigeration unit is a special equipment used in marine air conditioning system and marine refrigeration, refrigeration, low-temperature seawater storage and other occasions. It has the characteristics of novel design, convenient operation, stable operation, safety and reliability, and convenient maintenance. It is widely used in various types of passenger ships, fishing vessels, cargo ships, naval vessels and offshore oil platforms. The refri...


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Application :
Marine refrigeration unit: Marine refrigeration unit is a special equipment used in marine air conditioning system and marine refrigeration, refrigeration, low-temperature seawater storage and other occasions. It has the characteristics of novel design, convenient operation, stable operation, safety and reliability, and convenient maintenance. It is widely used in various types of passenger ships, fishing vessels, cargo ships, naval vessels and offshore oil platforms. The refrigeration unit can be designed according to the actual requirements of users, and the detailed technical scheme can be provided. The temperature range is – 20 – 10 C and the refrigeration capacity is 10 kW – 1000 kw.
1. The main engine chooses Bizel, Valley Wheel, Hanzhong and other world-famous compressors (with marine oil tank), which are stable in quality and reliable in operation.
2. Seawater high-efficiency shell-and-tube heat exchanger, high-efficiency corrosion-resistant materials such as nickel white copper, aluminium brass, titanium alloy, stainless steel, has high heat transfer efficiency and long service life; external rotor or low-noise condensing fan (air-cooled model), with low noise, high efficiency and beautiful appearance;
3. Choose domestic or imported high-quality refrigeration accessories, complete configuration, good reliability of unit operation;
4. Control system: Industrial-level centralized control system, all-Chinese operation interface, menu prompt easy to operate, can view the operation status of the unit at any time, adjust the working mode, accurately control the matching of refrigeration capacity and cooling load, ensure the unit to operate with the best efficiency and reduce operating costs. Internal integration of water flow, low temperature, high and low pressure, anti-freezing, reverse phase, delay start, overload, over-temperature, oil pressure difference and other security protection functions. Accurate control can control the temperature in the range of (+1). It is easy to operate, safe and reliable.
5. Marine chillers are more compact, lighter and occupy less space.

Parameters of screw chiller

Model

LGSJ-100K

LGSJ-140K

LGSJ-180K

LGSJ-200K

LGSJ-230K

LGSJ-260K

LGSJ-300K

LGSJ-310K

LGSJ-340K

LGSJ-370K

Refrigerating capacity

KW/h

86

119

156

168

209

225

265

280

312

336

KCal/h

73947

102322

134136

144454

179708

193465

227859

240757

268272

288908

Btu/h

293515

409556

535836

573378

713310

767918

907850

955631

1064846

1146758

Power Supply

3P-380V/50Hz

Throttling mode

Electronic Expansion Valve/Thermal Expansion Valve

Input power KW

22.9

30

38

41.9

50

54.8

62.1

66.1

72.1

78.2

Energy efficiency ratio

3.755

3.96

4.1

4.01

4.18

4.11

4.26

4.23

4.32

4.29

Compressor

type

Semi-closed twin-screw compressor

Startup mode

Y-△/△-△

Unloading type

0-25%-50%-75%-100%/0-33%-66%-100%

condenser

structural style

External Thread and Shell-and-Tube Type in Colleges and Universities

cooling water temperature

Influent 30℃/effluent 35℃

Cooling water flow(m³/h)

20

26

35

38

47

50

60

63

70

75

Inlet and outlet pipe diameter(DN)

65

65

80

80

100

100

100

100

100

125

Fouling coefficient

0.088㎡*℃/Kw

evaporator

structural style

High Efficiency Internal Thread、Shell and Tube Type

Freezing water temperature

Influent 12℃/effluent 7℃

Frozen water flow(m³/h)

15

20

27

29

36

39

46

48

54

58

Inlet and outlet pipe diameter (DN)

65

65

80

80

100

100

100

100

100

125

Fouling coefficient

0.018㎡*℃/Kw

Protection mode

Leakage protection, reverse protection of power supply, phase absence protection, motor overcurrent protection, compressor overheating protection, system pressure abnormal protection, oil level abnormal protection, exhaust temperature abnormal protection, system water shortage protection and so on.

SIZE CM

L

225

225

244

246

290

290

290

290

290

295

W

900

900

950

100

100

110

120

120

120

120

H

130

130

140

145

150

150

156

156

156

156

WEIHGT

KG

950

1000

1300

1450

1700

1750

2150

2200

2250

2300

 

Parameters of screw chiller

Model

LGSJ-410K

LGSJ-470K

LGSJ-510K

LGSJ-550K

LGSJ-580K

LGSJ-620K

LGSJ-710K

LGSJ-790K

LGSJ-830K

LGSJ-930K

Refrigerating capacity

KW/h

365

444

464

513

556

577

672

724

788

889

KCal/h

313844

381771

398968

441101

478074

496131

577816

622528

677558

764402

Btu/h

1245734

1515358

1583618

1750853

1897611

1969283

2293515

2470990

2689420

3034130

Power Supply

3P-380V/50Hz

Throttling mode

Electronic Expansion Valve/Thermal Expansion Valve

Input power KW

86.2

103.2

105.6

118.8

127.1

133

151.6

163.5

178.6

201.8

Energy efficiency ratio

4.23

4.3

4.39

4.31

4.37

4.33

4.43

4.42

4.41

4.4

Compressor

type

Semi-closed twin-screw compressor

Startup mode

Y-△/△-△

Unloading type

0-25%-50%-75%-100%/0-33%-66%-100%

condenser

structural style

External Thread and Shell-and-Tube Type in Colleges and Universities

cooling water temperature

Influent 30℃/effluent 35℃

Cooling water flow(m³/h)

82

100

104

115

125

129

150

162

176

200

Inlet and outlet pipe diameter(DN)

125

125

125

150

150

150

150

150

200

200

Fouling coefficient

0.088㎡*℃/Kw

evaporator

structural style

High Efficiency Internal Thread、Shell and Tube Type

Freezing water temperature

Influent 12℃/effluent 7℃

Frozen water flow(m³/h)

63

76

80

88

96

99

116

125

136

153

Inlet and outlet pipe diameter (DN)

125

125

125

150

150

150

150

150

200

200

Fouling coefficient

0.018㎡*℃/Kw

Protection mode

Leakage protection, reverse protection of power supply, phase absence protection, motor overcurrent protection, compressor overheating protection, system pressure abnormal protection, oil level abnormal protection, exhaust temperature abnormal protection, system water shortage protection and so on.

SIZE(CM)

L

330

330

330

330

335

335

336

360

365

392

W

120

120

120

120

130

130

130

160

160

140

H

165

172

172

180

185

185

188

200

200

200

WEIHGT

Kg

2480

2750

2950

3100

3280

3450

400

4380

4450

4600

Note: Above parameters: evaporation temperature 2℃, condensation temperature 40℃.

Note:
1) above the parameter value conditions are: evaporation temperature -18℃, condensation temperature 40 ℃.
2) the above parameters is a standard water-cooled chiller technical parameters.
3) Statement: constantly updated technology, the above parameters are subject to change without notice.


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