- Contact：Mr. Song
- Phone：0086-13705113637
- Tell：0086-0515-88809180
- Fax：0086-0515-88809181
- E-mail：jsjckt@126.com
- Address：No. 18, Rongguang Road, National High-tech Park, Yancheng City, Jiangsu Province
How is dust-free workshop cooling done? What are the methods of refrigeration principle device?
1, compression refrigeration device
Compression refrigeration device includes piston (reciprocating), centrifugal and screw type three.
Piston (reciprocating) compression refrigeration device is the main equipment of piston refrigeration compressor, commonly used working medium ammonia (NH3), freon - 12, 22(F - 12, 22). This kind of equipment driven by electric motor, easy to use, variety, product complete, can meet the requirements of all kinds of air conditioning cooling, is widely used. However, a large investment, high equipment cost, power consumption, maintenance and management is more complex.
Screw type compression refrigeration device is the main equipment of screw refrigeration compressor, commonly used working medium is freon -12, 22, ammonia (F-12, 22, R717). Current production of screw refrigeration compressor compared with piston, although slightly lower efficiency, but because of its simple structure, small volume, high suction coefficient, low exhaust temperature, single stage compression ratio is big, is not sensitive to wet stroke, the exhaust fluctuation is small, less wearing parts, column repair cycle is long, the advantages of refrigerating capacity can be adjusted, so get more extensive application in all kinds of refrigeration unit. Generally in (120-800)x105kJ \ h capacity refrigeration equipment used this machine has better technical and economic indicators.
The main equipment of centrifugal compression refrigeration device is centrifugal refrigeration compressor, the commonly used working medium is Freon -11, 113, 114(F-11, 113, 114). The machine and piston refrigeration compressor of the same principle, but it only rotary movement, than the piston type smooth operation, small vibration, less parts, often combined with evaporator, condenser, compact equipment covers a small area. The refrigeration capacity of centrifugal refrigeration compressor is large, so only when the cooling consumption of air conditioning is large, this kind of equipment is selected.
2, absorption refrigeration device
Absorption refrigeration devices use thermal energy to refrigerate. Common ammonia - water absorption refrigeration device and water - lithium bromide aqueous solution absorption refrigeration device. The former is suitable for cryogenic freezing; The latter is suitable for air conditioning cooling, making more than 4℃ air conditioning or process cold water. In lithium bromide absorption refrigeration, water is the working medium and lithium bromide aqueous solution is the absorbent. Its advantages are as follows.
It has great adaptability to the pressure of steam heat source. When the steam pressure is 0.02 -- 0.1MPa, single lithium bromide absorption chiller can be used. When the steam pressure is 6.0 -- 1.0MPa, double effect lithium bromide chiller can be used.
3, steam jet refrigeration device
Steam jet refrigeration device is also a kind of refrigeration equipment using heat energy, with water as refrigerant and steam as refrigeration power. Steam pressure requirements of 0.2-0.8mpa, its main advantages are: equipment under vacuum work, in addition to the pump, no rotating parts; The refrigerant is water, harmless to people, safe to use, simple to operate; Simple equipment, easy to manufacture, general machinery factory or machine repair shop can be processed and manufactured; Equipment a small investment, and can be installed in the outdoor, save civil construction costs; Can use waste heat in industrial enterprises or industrial enterprises in the heating boiler, heating in winter, summer for steam refrigeration.
Industrial air conditioning, chemical fiber industrial air conditioning, chemical fiber industry refrigeration, textile industrial air conditioning, dust-free workshop cooling, ventilation pipeline, cooling tower, freezer and other air conditioning units and accessories.
Jiangsu Jincheng Air Conditioning Engineering Co., Ltd. is a comprehensive manufacturer of special air-conditioning equipment design, production, installation, and commissioning of clean room, electricity, tobacco, civil air defense engineering, medical clean room, clean room, electricity, tobacco, civil air defense engineering, medical clean room. Mainly produce JCZK combined air conditioning unit, cooling tower, glass steel ventilated galvanized sheet pipe, stainless steel pipe, polyurethane ventilation pipe and air conditioning accessories, Jincheng air conditioner is wide, the type, the unique model, superior performance, and user Favused.
