Heat exchange system and control method

A technology of a heat exchange system and a control method, which is applied to refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as switching failures, achieve reliable switching, improve operating energy efficiency, and avoid switching failures.

Active Publication Date: 2019-11-08
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a heat exchange system and a control method to solve the problem of switching failure in the heat exchange system in the prior art when switching operation modes

Method used

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  • Heat exchange system and control method

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Embodiment Construction

[0033]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] Such as Figure 1 to Figure 4 As shown, Embodiment 1 of the present invention provides a heat exchange system, including a first four-way reversing valve 10, a second four-way reversing valve 20, a first indoor heat exchanger 30, and a second indoor heat exchanger 40. The outdoor heat e...

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Abstract

The invention provides a heat exchange system and a control method. The heat exchange system comprises a first four-way reverse valve, a second four-way reverse valve, a first indoor heat exchanger, asecond indoor heat exchanger, an outdoor heat exchanger, and a compressor with a first cylinder and a second cylinder. As joints of the first four-way reverse valve and the second four-way reverse valve are associated, refrigerants discharged from the compressor firstly enter the first four-way reverse valve, and then, enter the second four-way reverse valve through a pipeline or other part, whenrefrigeration and heating operation modes of the heat exchange system are switched, the joint communicating state of the first four-way reverse valve is firstly switched, then, the joint communicating state of the second four-way reverse valve is switched to smoothly and reliably realize switching of the operation modes of he heat exchange system, and the switching failure problem is prevented. Through gradient cooling and dehumidification treatment of indoor returned air, the operation energy efficiency of the system is improved under the condition of guaranteeing the refrigerating capacityand the dehumidifying capacity of the system.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a heat exchange system and a control method. Background technique [0002] When using an air conditioner to adjust air temperature and humidity, in order to meet the dehumidification requirements, it is usually necessary to lower the temperature of the evaporator to a larger extent than the dew point temperature of the return air. From the perspective of energy efficiency of the refrigeration system, under the condition of a certain condensing temperature of the system, the lower the evaporation temperature is, that is, the larger the suction-to-exhaust pressure ratio of the compressor, the lower the energy efficiency of the system. [0003] In order to solve the problem of low system energy efficiency caused by the large temperature difference between the return air temperature and the evaporation temperature during the operation of the air conditioning system, a heat e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B13/00F25B41/04F25B41/06F25B49/02F25B41/20F25B41/31
CPCF25B13/00F25B49/02F25B2313/02742F25B41/30F25B41/31F25B41/20
Inventor 吕如兵郑波梁祥飞黄健贵
Owner GREE ELECTRIC APPLIANCES INC
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