The compressor comes out at high pressure. How do you make it low? What controller does the low pressure return compressor need?
Cycle of air conditioning refrigerant in the air-conditioning compressor condenser is: in the -----> -----> throttle valve ------> -------> compressor evaporator.From the high temperature refrigerant compressor cooling in the condenser, and through cutting hair (air conditioning is generally small, capillary) through the throttle valve after the refrigerant enters into the low pressure area (relative pressure area) flowing into the evaporator, the evaporator evaporation, the compressor suction pressure to the high pressure area, to complete a cycle of work!
1, through the throttle valve into low pressure, low pressure back compressor, through the suction filter, but it is not a controller, filter function.2, compressor (compressor), a kind of driven fluid machinery that promotes low-pressure gas as a high-pressure gas, is the heart of the refrigeration system. It is of low temperature and low pressure refrigerant gas suction pipe from the suction, through the operation of the motor drives the piston to compress it after high temperature and high pressure refrigerant gas discharge pipe to the exhaust, to provide power for the refrigeration cycle, so as to realize the compression and condensation (exothermic), expansion and evaporation (endothermic) refrigeration cycle.In 3, the compressor starts, the motor current is 5-6 times higher than the rated current, will not only affect the motor service life and consume more power. In the design of the system in the motor selection will leave some margin, the motor speed is fixed, but in actual use, sometimes you want to run lower or higher speed, so the frequency transformation is very necessary. The frequency converter can realize the soft start of the motor, change the input voltage and frequency of the equipment to achieve the purpose of energy saving and speed regulation, and provide the equipment with over-current, overvoltage and overload protection functions.
1, through the throttle valve into low pressure, low pressure back compressor, through the suction filter, but it is not a controller, filter function.2, compressor (compressor), a kind of driven fluid machinery that promotes low-pressure gas as a high-pressure gas, is the heart of the refrigeration system. It is of low temperature and low pressure refrigerant gas suction pipe from the suction, through the operation of the motor drives the piston to compress it after high temperature and high pressure refrigerant gas discharge pipe to the exhaust, to provide power for the refrigeration cycle, so as to realize the compression and condensation (exothermic), expansion and evaporation (endothermic) refrigeration cycle.In 3, the compressor starts, the motor current is 5-6 times higher than the rated current, will not only affect the motor service life and consume more power. In the design of the system in the motor selection will leave some margin, the motor speed is fixed, but in actual use, sometimes you want to run lower or higher speed, so the frequency transformation is very necessary. The frequency converter can realize the soft start of the motor, change the input voltage and frequency of the equipment to achieve the purpose of energy saving and speed regulation, and provide the equipment with over-current, overvoltage and overload protection functions.
