Working principle of chiller
Refrigeration medium in the evaporator to absorb the heat of the cooled object and vaporize into steam, the compressor will continuously produce steam from the evaporator, and compression, compression of high temperature, high pressure steam is sent to the condenser to the cooling medium (eg, water, air, etc.) exothermic condensation into high pressure liquid.
After the pressure reduction by the throttle mechanism into the evaporator, again vaporized, absorbing the heat of the cooled object, and so on and so forth in the cycle. Heating, refrigerant through the four-way valve to change the direction of refrigerant flow, refrigerant flow direction and refrigeration is just the opposite, refrigerant first through the evaporator, and then back to the condenser, and finally back to the compressor.
Expanded information:
Compressor discharge temperature
Compressor discharge temperature To be much higher than the condensing temperature, the exhaust temperature of the direct influence of the compressor suction temperature, the two are proportional relationship.
In addition, the exhaust temperature is also related to the type of refrigerant and compression ratio, in the air conditioning conditions, due to the compression ratio is not very high, so the exhaust temperature is not very high. When the piston compressor suction and discharge valve piece is not tight or broken caused by leakage (internal leakage), the exhaust temperature will rise significantly.
Reference: