Method for defrosting air conditioning unit and air conditioning unit

A technology for air-conditioning units and fans, which is applied in space heating and ventilation, refrigerators, heating methods, etc., can solve the problems of increasing energy consumption and large energy consumption, reducing energy consumption, increasing heat exchange, and improving The effect of heat exchange tube temperature

Active Publication Date: 2014-06-18
SHENZHEN MCQUAY AIR CONDITIONING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the defrosting process, the outdoor heat exchanger is a condenser, and the indoor heat exchanger is an evaporator, so the hot water generated by the indoor heat exchanger during the heating process is cooled. The hot w

Method used

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  • Method for defrosting air conditioning unit and air conditioning unit
  • Method for defrosting air conditioning unit and air conditioning unit

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Example Embodiment

[0031] The embodiment of the present invention provides a defrosting method for an air-conditioning unit to reduce the energy consumption of heating of the air-conditioning unit.

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0033] Such as figure 1 As shown, the defrosting method for an air conditioning unit provided by the embodiment of the present invention specifically includes the steps:

[0034] S01: Detection of ambient temperature T 1 And the suction temperature T of the compre...

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Abstract

The invention provides a method for defrosting an air conditioning unit and the air conditioning unit. The method for defrosting the air conditioning unit comprises the steps that (1) the environment temperature T1 and the air absorption temperature T2 of a compressor of the air conditioning unit are detected; (2) when T2 is smaller than T3 and the running time t1 of the compressor is longer than the first preset time, if T4 is smaller than T1 and T1 is smaller than T5, the compressor is controlled to stop operating, a fan of an outdoor unit is controlled to operate, defrosting operation conducted by the fan is started, and after the fan is operated for the second preset time, defrosting operation is stopped, wherein T3 is the first preset temperature, T4 is the second preset temperature, and T5 is the third preset temperature. According to the method for defrosting the air conditioning unit, the compressor is controlled to stop operating, the fan of the outdoor unit is controlled to operate to conduct defrosting operation, the temperature of hot water in an indoor heat exchanger cannot be reduced in the defrosting process, and therefore the energy consumption amount of air conditioning unit heating is reduced. Meanwhile, in the defrosting process, the compressor stops operating and the energy consumption amount in the defrosting process is reduced.

Description

technical field [0001] The invention relates to the technical field of air-conditioning defrosting, and more specifically, relates to a method for defrosting an air-conditioning unit and the air-conditioning unit. Background technique [0002] When the air conditioner is heating, the outdoor heat exchanger (usually a finned heat exchanger) will frost when its surface temperature is lower than 0°C, and the frost layer will affect the heating effect, so the air conditioner runs for a period of time. need defrosting afterwards. [0003] At present, the method of switching the four-way valve is usually used for defrosting, and the high-temperature and high-pressure gas discharged from the compressor enters the outdoor heat exchanger, thereby melting the frost layer on the surface of the outdoor heat exchanger. During the defrosting process, the outdoor heat exchanger is a condenser, and the indoor heat exchanger is an evaporator, so the hot water generated by the indoor heat ex...

Claims

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Application Information

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IPC IPC(8): F25B47/02F24F11/02
Inventor 邓行张志斌
Owner SHENZHEN MCQUAY AIR CONDITIONING
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