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I believe that many people have come in contact with chillers, and even can list out the advantages and disadvantages of chillers. The chiller is divided into household and industrial applications. Under normal circumstances, the industrial chiller is an air-cooled chiller. The chiller is easy to use, fast cooling, and widely favored. Chiller construction and working principle.

Air-cooled chiller construction accessories: condenser, reservoir, dry filter, evaporator, thermal expansion valve, refrigerant

How Air-cooled Chiller Works

Condenser: In the cooling process, the condenser functions to output thermal energy and condense the refrigerant. After the high-pressure superheated steam discharged from the refrigerant compressor enters the condenser, all the heat absorbed in the working process, including the heat absorbed from the evaporator and the refrigerant compressor and in the pipeline, is transferred to the surrounding medium (water or Air) away; refrigerant high pressure superheated steam recondenses into liquid. The

Reservoir: The reservoir is installed behind the condenser and is in direct communication with the drain tube of the condenser. The refrigerant liquid in the condenser should flow unimpeded into the reservoir so that the cooling area of the condenser can be fully utilized. On the other hand, when the heat load of the evaporator changes, the required amount of the refrigerant liquid also changes. At that time, the reservoir serves to adjust and store the refrigerant. For small chiller refrigerating device systems, there is often no reservoir, but the condenser is used to adjust and store the refrigerant. The

Drying filter: In the chiller refrigeration cycle, moisture and dirt (oil, iron, copper shavings, etc.) must be prevented from entering. The source of moisture is mainly the trace amount of moisture contained in the newly added refrigerant and lubricating oil, or due to The moisture that the air enters when overhauling the system. If the moisture in the system is not eliminated, when the refrigerant passes through the throttle valve (thermoexpansion valve or capillary), the pressure and temperature will sometimes cause the moisture to freeze to ice, blocking the channel and affecting the normal operation of the refrigeration device. Therefore, a dry filter must be installed in the chiller refrigeration system.

Evaporator: An evaporator is a heat exchanger that absorbs the heat of the cooled medium by means of evaporation (actually boiling) of the refrigerant liquid. Its function in the refrigeration system is to absorb heat (or output cooling). In order to ensure that the evaporation process can be carried out stably and permanently, the vaporized gas must be continuously withdrawn by the refrigeration compressor to maintain a certain evaporation pressure.

Thermal expansion valve: The thermal expansion valve is not only the flow regulating valve in the chiller refrigeration system, but also the throttling valve in the refrigeration equipment. It is installed in the refrigeration equipment between the dry filter and the evaporator, and its temperature-sensing package It is wrapped in the outlet of the evaporator. Its main function is to make high-pressure refrigerant liquid at room temperature throttle down when passing through the thermal expansion valve, and turn into low-temperature and low-pressure refrigerant wet steam (most of which is liquid and a small part of steam) to enter the evaporator and vaporize in the evaporator. Endothermic, and achieve the purpose of refrigeration cooling. The

Refrigerants: Most industrial chillers used in modern industry use R22 or R12 as refrigerants. Refrigerant is a working fluid in a refrigeration system. Its main function is to carry heat, and to achieve heat absorption and heat release when the state changes.

Through the above introduction, I believe we have a preliminary understanding of the working principle of air-cooled chillers. The demand for the chiller market is very strong. Therefore, there are a lot of good and bad chillers on the market. Do not buy for free and choose a regular company to purchase.