What is the basic configuration of air-cooled chiller?

What is the basic configuration of air-cooled chiller?

Condenser: In the condenser process, the condenser has the function of outputting heat and condensing refrigerant. After the high-pressure superheated steam discharged from the refrigeration compressor enters the condenser, all the heat absorbed during the working process (including the heat absorbed by the evaporator and the refrigeration compressor) is transferred to the surrounding medium (water or air). The high-pressure superheated vapor of the refrigerant condenses again into a liquid. (According to the cooling medium and cooling method of the air-cooled chiller, the condenser can be divided into three categories: co-condenser, co-condenser, and evaporative condenser.).

Storage: After the storage is installed on the condenser, it is directly connected to the drain pipe of the condenser. The refrigerant liquid in the condenser should flow unimpeded into the reservoir to make full use of the cooling area of the condenser. On the other hand, when the heat load of the evaporator changes, the demand for refrigerant liquid will also change. At that time, the accumulator plays the role of preparing and storing refrigerant. For small water chiller air conditioning systems, often do not set the reservoir, but the use of the condenser to regulate and store the refrigerant.

Drying filter: to prevent the cold water heater freezing cycle of moisture and dirt (oil, iron, copper) and other inflow. The source of moisture in the air-cooled chiller is mainly the trace moisture contained in the newly added refrigerant and lubricating oil, or the moisture generated by air entry during system maintenance. If the moisture in the system is not clean, when the refrigerant passes through the throttle valve (thermal expansion valve or capillary tube), the pressure and temperature drop will sometimes condense the moisture into ice, block the channel, and affect the normal operation of the cooling device. Therefore, it is necessary to install a dry filter in the cooling system of the chiller.

Evaporator: The evaporator is a heat transfer device that relies on the evaporation of the coolant liquid (actually boiling) to absorb the heat of the cooling medium. The function of the cooling system is to absorb heat (or output cold). In order to make the evaporation process stable and lasting, it is necessary to continue to pump out the gas evaporated into the refrigeration compressor and maintain a certain evaporation pressure.

Thermal expansion valve: The thermal expansion valve is the flow regulating valve in the cooling system of the cold water heater and the throttle valve in the cooling equipment. It is installed between the drying filter and the evaporator in the cooling equipment, and the temperature package is enclosed in the outlet of the evaporator. Its main function is to reduce the pressure when the high-pressure and normal-temperature refrigerant liquid passes through the thermal expansion valve, so that the low-temperature and low-pressure refrigeration and dehumidification steam (mostly liquid, a small part is steam) enters the evaporator and evaporates in the evaporator to absorb and cool the heat. The purpose.

Refrigerants: Most industrial cold water heaters used in modern industry use R22 or R12 as refrigerants. Refrigerant is the working fluid of the refrigeration system. Its main function is to carry heat and realize heat absorption and heat generation when the state changes.