Air Cooled Screw Chiller,Semi closed Air Cooled Screw Chiller

Description:

The series air cooled screw type chiller cooling capacity from 85KW to 1550KW. This series units integrates the characteristics of many other products, using imported semi-closed screw compressors,supplemented by high-efficiency heat exchangers and adopts microcomputer controllers, which makes the unit compact, reasonable layout, convenient to use and maintain. The user just need simply connect the pipeline of the water system and the required power supply,then can put into operation.

This series of chillers is widely used: it can provide process chilled water for industrial and mining enterprises such as textile, chemical and petroleum. The manufacturing technology of this product is mature and stable and reliable.

Features:

1. Scroll compressor for modle 12-180kw, semi-hermetic screw compressor for modle 130-2300kw. Each compressor is equipped with a crankcase heater and a thermal overload cut-out; the screw compressor is also complete with a built-in electronic protection with temperature sensor located directly in the motor winding and on the discharge line.

2. External rotor type axial fans, equipped with three phase direct drive motors, low noise 8 poles, protection level IP54, provided with a protective outlet grille.

Evaporator built with high efficiency shell and tube type heat exchanger, factory insulated with flexible close cell material.

3. Condenser built with seamless copper tubes mechanically expanded into blue hydrophilic aluminum fins.

4. Refrigerant circuit complete with charge valves, filter drier, sight glass, gas-liquid separator, thermostatic expansion valve, high & low pressure switch. The heat pump unit is completed also with 4-way valve, liquid receiver and one way valve.

5. Hydraulic circuit built with galvanized pipe, complete with water discharge connection for shell and tube heat exchanger and flange type hydraulic connectors.

6. Electric panel consist of: Compressor contactor, fan motor contactor, compressor isolating switch, fan protection breaker, phase sequence relay and microprocessor with function display.

7. Automatic operation dramatically reducing maintenance cost thanks to reliable microprocessor system.

Safety system:

1 Compressor reverse protective

2 Freeze protector protective

3 Refrigerant safety valve

4 Buzzer

5 High-pressure gauge and Low-pressure gauge

6 Power phase failure protector

7 Coil over-heat protector

8 Temperature auto-switch

9 Refrigerant shortage protective

Model HTK-130F HTK-170F HTK-190F HTK-230F HTK-250F HTK-310F HTK-350F HTK-450F

Cooling KW 130 168 187 226 251 314 354 450

Capacity Kcal/Hr 111800 144480 164700 194360 215860 270040 304440 387000

RT 36.96 47.77 53.17 64.26 71.37 89.28 100.65 127.95

Power 50HZ 3P-380V-50HZ

Input power(KW) 45.5 58.7 64.7 77.9 86.8 107.5 119.8 150

EER COP 2.86 2.86 2.89 2.9 2.89 2.92 2.95 3

Freezing medium R22

control mode Thermal expansion valve

Comprosser Mode Semi-closed double screw

Working style Y-Δ/Δ-Δ

Capacity 0-25%-50%-75%-100%

Condensor Mode Finned type

Cooling air tempreture In 35℃/Out 45℃

Wind flow (m³/h) 60000 60000 90000 90000 120000 120000 180000 180000

Fan quantity 4 4 6 6 8 8 12 12

Motor power（KW) 0.85×4 0.85×4 0.85×6 0.85×6 0.85×8 0.85×8 0.85×12 0.85×12

Evaporater mode Efficient internal thread shell and tube type

Freeze water tempreture In 12℃/Out 7℃

Freeze water flow (m³/h) 22.4 28.9 32.2 38.9 43.2 54 60.9 77.4

Pressure loss (Kpa) 52 52 55 58 58 58 58 61

waterpipe DN80 DN80 DN80 DN80 DN100 DN100 DN100 DN100

Safeguard High and low pressure protection; overload protection; anti-phase protection, compressor over temperature protection;

high pressure safety valve protection; oil pressure protection; exhaust over heat protection

Units Weight Kg 1700 1800 2200 2300 2800 2900 3500 3600

Size L(mm) 2080 2080 3060 4040 4040 6000 6000 6000

W(mm) 2200 2200 2200 2200 2200 2200 2200 2200

H(mm) 2220 2220 2220 2260 2260 2260 2260 2260

Noise(dB)