Heat exchanger operation auxiliary system and heat exchanger system using the system

Abstract

The invention relates to a heat exchanger running auxiliary system and a heat exchanger system using the same. The heat exchanger system comprises evaporators, condensers and the heat exchanger running auxiliary system, wherein the heat exchanger running auxiliary system comprises a solid absorption type refrigerating system; the solid absorption type refrigerating system is provided with refrigerating system condensers and refrigerating system evaporators; the heat exchanger running auxiliary system also comprises a hot delivery device and / or a cold delivery device; the hot delivery device is used for delivering high-temperature media surrounding the refrigerating system condensers to the corresponding evaporators of the heat exchanger system; and the cold delivery device is used for delivering low-temperature media surrounding the refrigerating system evaporators to the corresponding condensers of the heat exchanger system. By using the heat exchanger running auxiliary system, the heat exchanging performance of a heat exchanger can be improved. The heat exchanger running auxiliary system is simple in structure, and is energy-saving and environment-friendly; and solar energy can be sufficiently utilized.

Description

technical field [0001] The invention relates to a heat exchanger operation auxiliary system and a heat exchanger system using the system. Background technique [0002] During the use of the heat exchanger system with evaporator and condenser, when the temperature on one side of the evaporator is low, the heat exchange surface of the evaporator is prone to frost, which will reduce the flow area of ​​the air flow, block the air circulation, and make the The amount of heat exchange decreases; at the same time, the frost layer itself has thermal resistance, which will deteriorate the heat conduction, make the cooling performance worse, and the energy efficiency ratio will decrease rapidly. In severe cases, the heat exchanger system will even fail to work. In current heat exchanger systems, such as air conditioners, in order to prevent the impact of frost on the refrigeration performance, the electric heating defrosting method is often used to defrost the evaporator, which requir...

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Problems solved by technology

[0002] During the use of the heat exchanger system with evaporator and condenser, when the temperature on one side of the evaporator is low, the heat exchange surface of the evaporator is prone to frost, which will reduce the flow area of ​​the air flow, block the air circulation, and make the The heat transfer capacity decreases; at the same time, the frost layer itself has thermal resistance, which will deteriorate the heat conduction, make the cooling performance worse, and the energy efficiency ratio will decrease rapidly. In severe cases, the heat exchanger system will even fail to work.

Current heat exchanger systems, such as air conditioners, often use electric heating to defrost the evaporator in order to prevent the impact of frost on the cooling performance, which requires a lot of waste of electric energy

In addition, the existing defrosting methods generally start defrosting only after severe frosting occurs, and the defrosting process takes a relatively long period of time, during which the normal operation of the air conditioner will be affected and the comfort is poor.

[0003] The condenser of the air conditioner needs to release heat to the external environment during the working process. The existing household air conditioner condenser is generally cooled by air cooling, and the fan is used to dissipate heat from the finned tube of the condenser. However, due to the high outdoor ambient temperature in summer , in most areas of our country, especially in the south, the average day and night temperature is above 30 degrees Celsius, so the heat dissipation effect of the condenser is not very ideal, resulting in poor cooling performance of the air conditioner and a waste of electric energy

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