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What are the ways of dust-free workshop cooling device? Xiaobian summed up three points, please check!
1、 compression refrigeration device
Compression refrigeration device includes piston (reciprocating), centrifugal and screw type three.
The main equipment of piston (reciprocating) compression refrigeration device is 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, many varieties, complete products, can meet the requirements of all kinds of air conditioning cooling, is widely used. But a large investment, high equipment costs, power consumption, maintenance and management is more complex.
The main equipment of centrifugal compression refrigeration device is centrifugal refrigeration compressor, commonly used working medium is freon -11, 113, 114(F-11, 113, 114). This machine has the same principle as the piston type refrigeration compressor, but it only has rotary movement, smooth operation than the piston type, small vibration, fewer parts, often combined with the evaporator, condenser, compact equipment and small footprint. The refrigeration capacity of centrifugal refrigeration compressor is large, so only when the cooling capacity of air conditioning is large, this kind of equipment is selected.
The main equipment of screw compression refrigeration device is screw refrigeration compressor, commonly used working medium is freon -12, 22, ammonia (F-12, 22, R717). At present, the production of screw refrigeration compressor compared with piston type, although the efficiency is slightly lower, but because of its simple structure, small volume, high suction coefficient, low exhaust temperature, single stage compression ratio, insensitive to wet stroke, small exhaust pulsation, less vulnerable parts, long column repair cycle, cooling capacity can be stepless adjustment, so it is widely used in various refrigeration devices. Generally in the (120-800)x105kJ \ h capacity range of refrigeration device used in this machine has better technical and economic indicators.
2、 absorption refrigeration device
Absorption refrigeration units use thermal energy to refrigerate. The common ammonia - water absorption refrigeration device and water - lithium bromide solution absorption refrigeration device. The former is suitable for low temperature freezing; The latter is suitable for air conditioning cooling, making air conditioning above 4℃ or cold water for process. 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, the single lithium bromide absorption refrigerating machine can be used. When the steam pressure is 6.0mpa, the dual-effect lithium bromide refrigerating machine can be used.
3、steam jet refrigeration device
Steam jet refrigeration device is also a kind of equipment that uses heat energy for refrigeration, with water as refrigerant and steam as refrigeration power. Steam pressure requirements of 0.2-0.8mpa, its main advantages are: equipment under vacuum, in addition to the pump, no rotating parts; The refrigerant is water, harmless to people, safe to use, easy to operate; Simple equipment, easy to manufacture, general machinery factory or machine repair workshop can be processed and manufactured; Equipment a small investment, and can be installed outdoors, save civil construction costs; Industrial enterprises can use waste heat 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.
