Reasons for the abnormal pressure in the refrigeration system of industrial chillers

  Dec 18, 2020

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  If the refrigeration system of an industrial chiller breaks down, the number of gaseous refrigerant molecules will change greatly, and the pressure will be abnormal, far beyond its normal pressure working range.

  The poor heat dissipation of the condenser results in the high pressure on the high pressure side. The main reasons for the poor heat dissipation of the chiller's heat exchanger are:

  1. There is fouling in the condenser tube;

  2, there is dust on the surface of the condenser heat sink

  3, the condenser radiator is blocked;

  4. The air volume is not good.

  These reasons will affect the heat exchange between the refrigerant and the carrier. The refrigerant cannot release heat very well, and the gaseous refrigerant will hardly condense into a liquid refrigerant. In this way, the gaseous refrigerant continuously transported from the compressor has no time to condense, and the gaseous refrigerant accumulates between the compressor and the condenser, and the number of gaseous refrigerant molecules on the high-pressure side gradually increases, causing the pressure on the high-pressure side to increase.

  When the operating conditions of industrial chillers change, the number of gaseous refrigerant molecules changes and the pressure changes accordingly. For example, when the compressor speed increases, the gaseous refrigerant delivered to the condenser increases, causing the gaseous refrigerant on the high-pressure side to be added, and the pressure rises accordingly. The number of gaseous refrigerants sucked increases, which reduces the gaseous refrigerant on the low-pressure side and the pressure decreases accordingly; if the speed of the condenser fan speeds up and the air volume increases, the gaseous refrigerant in the condenser condenses into the number of molecules of liquid refrigerant. If the speed of the evaporator fan speeds up and the air volume increases, the number of molecules that evaporate the liquid refrigerant into gaseous refrigerant will increase, and the gaseous refrigerant on the low pressure side will increase accordingly, and the pressure will decrease. Elevated.

  Nanjing RICOM Refrigeration Equipment Co., Ltd. is a manufacturer specializing in industrial temperature control technology for 20 years. It implements modern quality management system S09001: 2008 and environmental system IS014001: 2004 standards to ensure that the enterprise team continues to be in the technical field Innovation, focus on customer use and satisfaction, unanimously recognized by the industry and customers.

  In order to comprehensively improve the market's competitiveness, the company has carried out technical cooperation with the American "Copeland" company, and introduced a variety of new production facilities, and a large number of high-quality materials such as Europe, the United States and the United States are selected, so that the product quality has been effectively guaranteed! To provide customers with safer, precise, energy-saving, environmentally-friendly, cost-effective products and considerate after-sales service, resulting in the products sold well throughout the country, and exported to Southeast Asian countries such as Arabia, Africa, Russia, Vietnam, Malaysia and Europe and the United States.

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