Analysis of the working principle of china CONDENSING UNIT: The two-stage refrigeration cycle is developed on the basis of the single-stage refrigeration cycle, and its compression process is divided into two stages. The refrigerant vapor from the evaporator first enters the low-pressure cylinder to be compressed to the medium pressure, then enters the high-pressure cylinder after intermediate cooling, and then enters the condenser to be compressed to the condensing pressure. Generally, when the evaporating temperature is between -25°C and -50°C, a two-stage compressor should be used for refrigeration.
The china CONDENSING UNIT system is composed of auxiliary equipment such as evaporator, two-stage compressor, oil separator, condenser, intercooler, ammonia accumulator, ammonia liquid separator, throttle valve, etc. system. Among them, the intercooler uses a small amount of liquid refrigerant to vaporize and absorb heat under medium pressure, which cools the superheated steam discharged from the low-pressure stage, reduces the suction temperature of the high-pressure stage, and also cools the high-pressure liquid refrigerant.
Single stage china CONDENSING UNIT is a wide range of refrigerators that can be used in ice making, air conditioning, food refrigeration and industrial production processes. The single-stage refrigeration cycle refers to the four processes of compression, condensation, throttling, and evaporation of the refrigerant in the refrigeration system to complete the cycle of a single-stage refrigerator, that is, to achieve the purpose of refrigeration.
The china CONDENSING UNIT consists of evaporator, single-stage compressor, oil separator, condenser, ammonia storage device, ammonia liquid separator, throttle valve and other auxiliary equipment, which are connected to each other through pipelines to form a closed system. Among them, the evaporator is a device for conveying cold energy. After the liquid refrigerant evaporates, it absorbs the heat of the cooled object to achieve refrigeration; as the heart of the system, the compressor plays the role of inhaling, compressing and conveying the refrigerant vapor. The oil separator is used to settle and separate the oil in the compressed refrigerant vapor;
The china CONDENSING UNIT condenses the high temperature refrigerant vapor discharged from the compressor into a saturated liquid; the ammonia storage tank is used to store the refrigerant ammonia condensed in the condenser and adjust the supply and demand relationship of the refrigerant ammonia between the condenser and the evaporator. Ammonia liquid separator is an important auxiliary equipment in the ammonia gravity liquid supply system. The throttle valve plays the role of throttling and depressurizing the refrigerant, controlling and regulating the flow of refrigerant liquid flowing into the evaporator, and dividing the system into two parts: high pressure side and low pressure side.