The condenser works by passing the gas through a long tube (usually coiled into a solenoid) to allow heat to be dissipated to the surrounding air, and metals such as copper have strong thermal conductivity and are often used to transport vapor. In order to improve the efficiency of the condenser, a heat sink with excellent heat conduction performance is often attached to the pipeline, and the heat dissipation area is increased to accelerate the heat dissipation, and the air convection is accelerated by the fan to take the heat away.
The refrigeration principle of the general refrigerator is that the compressor compresses the working fluid from low temperature and low pressure gas into high temperature and high pressure gas, and then condenses into medium temperature and high pressure liquid through the condenser, and after throttling through the throttle valve, it becomes a low temperature and low pressure liquid. The low-temperature and low-pressure liquid working fluid is sent to the evaporator, and the heat is absorbed and evaporated in the evaporator to become low-temperature and low-pressure steam, which is transported to the compressor again to complete the refrigeration cycle.
Single-stage vapor compression refrigeration system is composed of four basic components of refrigeration compressor, condenser, throttle valve and evaporator, which are connected in turn by pipelines to form a closed system, and the refrigerant is continuously circulating in the system, changing its state, and exchanging heat with the outside world.
In the refrigeration system, the evaporator, condenser, compressor and throttle valve are the four essential parts of the refrigeration system, of which the evaporator is the equipment for transporting cold capacity. The refrigerant absorbs the heat of the object being cooled in it to achieve cooling. The compressor is the heart and plays the role of inhaling, compressing and transporting refrigerant vapor.
The condenser is a device that releases heat, and the heat absorbed in the evaporator is transferred to the cooling medium together with the heat converted by the compressor work. The throttle valve throttles the refrigerant, controls and regulates the amount of refrigerant liquid flowing into the evaporator, and divides the system into two parts: high pressure side and low pressure side.
In the actual refrigeration system, in addition to the above four major parts, there are often some auxiliary equipment, such as solenoid valves, distributors, dryers, collectors, fusible plugs, pressure controllers and other components, which are set up to improve the economy, reliability and safety of operation.
