What is the principle of a chiller?
In the refrigeration industry, it is divided into two types: air-cooled chillers and water-cooled chillers. According to the different compressors, it is divided into screw chillers, scroll chillers and centrifugal chillers. In terms of temperature control, it is divided into low-temperature industrial coolers and normal temperature coolers. The temperature of the normal temperature unit is usually controlled in the range of 0 degrees to 35 degrees. The temperature control of the cryogenic unit is usually around 0 degrees to -100 degrees.
Chillers are also known as: freezers, refrigeration units, chillers, cooling equipment, etc. Since they are widely used in various industries, the requirements for chillers are different. It works as a versatile machine that removes liquid vapors by compression or endothermic refrigeration cycles. This chiller includes four main components: compressor, evaporator, condenser and expansion valve to achieve the cooling and heating effect of the unit.
Chillers are often called freezers, chillers, chillers, chillers, etc. Since it is widely used in various industries, there are countless names. With the continuous development of the refrigerator industry, more and more people pay attention to the refrigerator industry. For humans, any choice in the chiller industry is becoming more and more important. In the product structure, "energy-efficient water-cooled screw unit", "water-source heat pump unit", "screw heat recovery unit", "high-efficiency heat pump unit", "screw low-temperature "refrigeration unit" and so on have strong competitiveness. Its nature and principle is a versatile machine for removing liquid vapors by compressing or absorbing heat in a refrigeration cycle.
The vapor compression chiller includes four main components: compressor, evaporator, condenser and part of the metering device, which realizes different refrigerants in the form of vapor compression refrigeration cycles. Absorption chillers use water as a refrigerant and rely on water and lithium bromide solutions to have a strong affinity for the cooling effect. Chillers are commonly used in air conditioning equipment and industrial cooling. In air conditioning systems, cold water is typically distributed to heat exchangers or coils in air handling units or other types of end equipment for cooling in their respective spaces, and then the cooling water is redistributed back to the condenser for cooling.
In industrial applications, chilled water or other liquid cooling pumps pass through process or laboratory equipment. Industrial coolers are used in various industries to control the cooling of products, mechanical devices, and factory machinery. According to the type of cooling, chillers can usually be divided into water-cooled and air-cooled. Technically, the energy efficiency of water cooling is 300 to 500 kcal/h higher than that of air cooling. As far as installation is concerned, the cooling tower must be cooled before it can be used. The air-cooled type can be moved without additional assistance.
In the circulation system of the refrigerator, the compressor inhales low-temperature and low-pressure refrigerant steam from the evaporator, which is adiabatically compressed by the compressor into high-temperature and high-pressure superheated steam, and then pressed into the condenser for constant pressure cooling, and heat is released to the cooling medium, and then cooled into a supercooled liquid refrigerant.