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Air conditioning system and compressor cooling method

A technology for air-conditioning systems and compressors, which is applied in mechanical equipment, machines/engines, and liquid-variable-capacity machinery, etc., and can solve problems such as unstable cooling effect, deterioration of oil quality in the body, and affecting the normal operation of air-conditioning systems.

Active Publication Date: 2017-12-19
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the operation of the air conditioning system, the temperature of the compressor is often too high due to the high return air or exhaust temperature of the compressor. If the compressor temperature is too high, the oil quality in the body will deteriorate and seriously affect the normal operation of the air conditioning system. run
In the prior art, there is a method of cooling the compressor by adding a special cooling device, but the cooling effect is not stable

Method used

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  • Air conditioning system and compressor cooling method

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specific Embodiment approach 1

[0041] refer to figure 1 , the present invention provides a method for cooling a compressor of an air-conditioning system, the method comprising: branching out a refrigerant cooling pipeline from the outlet of a condenser of the air-conditioning system, coiling the refrigerant cooling pipeline on the outer shell of the compressor and connecting it to the compressor machine inlet.

[0042] During the operation of the air conditioning system, the refrigerant discharged from the condenser is mainly in the state of low-temperature and high-pressure liquid. In the above method, when the liquid refrigerant discharged from the condenser flows to the refrigerant coiled on the outer shell of the compressor to cool In the pipeline section, due to the high temperature of the outer casing of the compressor, the liquid refrigerant in the pipeline section will quickly absorb heat and vaporize, thereby realizing the cooling of the compressor and avoiding the internal lubrication of the compr...

specific Embodiment approach 2

[0055] refer to image 3 , The present invention also provides another method for cooling the compressor of the air-conditioning system. In the method, the pipeline of the gas injection enthalpy increasing circuit in the air-conditioning system is coiled on the outer casing of the compressor to cool the compressor.

[0056] In the air-conditioning system that uses the technology of air injection to increase enthalpy, the refrigerant discharged from the condenser generally passes through the plate heat exchanger first. In addition to the pipeline connected to the evaporator, the outlet of the plate heat exchanger is also equipped with an air injection system. The enthalpy increasing circuit is connected to the injection port of the compressor to supplement the amount of refrigerant. In the above method, when the refrigerant in the air injection enthalpy increasing circuit flows to a part of the pipe section coiled on the outer casing of the compressor, due to the high temperatu...

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Abstract

The invention provides an air conditioning system and a compressor cooling method. The method is used for cooling a compressor by coiling a pipeline of an enhanced vapor injection loop in the air conditioning system on a housing of the compressor. According to the method, refrigerant in a coiled pipe section of the enhanced vapor injection loop absorbs heat and is gasified, so that the compressor is cooled, lubricating oil and the like in the compressor is prevented from deteriorating due to high running temperature of the compressor, and the compressor is operated within a normal temperature range all the time; in addition, the refrigerant flows through the pipe section coiled on the housing of the compressor and then flows to an injection opening of the compressor in a medium-temperature and medium-pressure gas state so as to be mixed with medium-pressure gas refrigerant which is partially compressed and continue to participate in the compression process. By adopting the technical scheme, the compressor is cooled, and additionally, enough refrigerant is guaranteed to participate in the air conditioning system cycle, so that the safety and the reliability of the compressor and the air conditioning system are greatly increased.

Description

technical field [0001] The present invention relates to the technical field of air conditioning systems, in particular to an air conditioning system and a compressor cooling method. Background technique [0002] During the operation of the air conditioning system, the temperature of the compressor is often too high due to the high return air or exhaust temperature of the compressor. If the compressor temperature is too high, the oil quality in the body will deteriorate and seriously affect the normal operation of the air conditioning system. run. In the prior art, there is a method of cooling the compressor by adding a special cooling device, but the cooling effect is not stable. [0003] Therefore, it is necessary to further improve the compressor cooling method of the air-conditioning system to ensure the safety and reliability of the compressor and the air-conditioning system. Contents of the invention [0004] In view of the above defects or deficiencies in the prior...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/06
CPCF04B39/06
Inventor 邓建云
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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