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Functions and usage scenarios of different types of chillers

Jime

A chiller is a cooling water device that can provide constant temperature, constant current, and constant pressure, and is one of the core components of an industrial cooling water system. In the industry, there are two types of air-cooled chillers and water-cooled chillers. The chillers are divided into low-temperature chillers and normal-temperature chillers in terms of temperature control. The normal temperature is generally controlled within the range of 0 degrees to 35 degrees. The temperature control of the low-temperature machine is generally in the range of 0 degrees to minus 100 degrees.

 

The chiller includes four main components: compressor, evaporator, condenser, and expansion valve, so as to achieve the cooling and heating effect of the unit.

Chillers are commonly known as freezers, refrigerators, ice water machines, chilled water machines, coolers, etc. Because it is widely used in all walks of life, there are countless names. With the continuous development of the chiller industry, more and more people have begun to pay attention to any choice in the chiller industry. It is more and more important for human beings. In terms of product structure, "high-efficiency water-cooled screw units", "water source heat pump units", " "Screw Heat Recovery units", "High-Efficiency Heat Pump Units", "Screw Low-Temperature Refrigeration units", etc. are very competitive, its nature principle is a multifunctional machine, which removes the liquid vapor through compression or heat absorption refrigeration cycle.

The vapor compression chiller consists of four main components: compressor, evaporator, condenser, and part of the metering device, which realizes different refrigerants in the form of a vapor compression refrigeration cycle.

The absorption chiller uses water as the refrigerant and relies on the strong affinity between the water and the lithium bromide solution to achieve the cooling effect. Chillers are generally used in air conditioning units and industrial cooling.

In air conditioning systems, chilled water is usually distributed to heat exchangers or coils in the air handling units or other types of terminal equipment for cooling in their respective spaces, and then the cooling water is redistributed back to the condenser to be cooled.

In industrial applications, chilled water or other liquids are pumped through process or laboratory equipment. Industrial chillers are used in all walks of life to control the cooling of products, mechanisms, and plant machinery. Chillers can generally be divided into water-cooled and air-cooled types according to the cooling form. Technically, the energy efficiency ratio of water-cooled is 300 to 500 kcal/h higher than that of air-cooled; in installation, water-cooled must be included in the cooling tower before it can be used. Air-cooled is movable without other assistance.

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