Heat recovery system and defrosting control method

A heat recovery and electric heating device technology, applied in the direction of refrigerators, refrigeration components, fluid heaters, etc., can solve problems such as damaged pipelines, achieve the effect of protecting the unit and improving performance

Active Publication Date: 2019-04-09
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can solve the problem in the related art that defrosting is easy to damage the pipeline when the inlet water temperature of the generator is too low

Method used

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  • Heat recovery system and defrosting control method
  • Heat recovery system and defrosting control method
  • Heat recovery system and defrosting control method

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Embodiment Construction

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

[0044] In the following description, use of suffixes such as 'module', 'part' or 'unit' for denoting elements is only for facilitating description of the present invention and has no specific meaning by itself. Therefore, 'module', 'part' or 'unit' may be used in combination.

[0045] In order to solve the problem in the related art that defrosting is easy to damage the pipeline when the inlet water temperature of the generator is too low, such as figure 1 As shown, the embodiment of the present invention provides a heat recovery system, the system includes:

[0046] The first liquid pipe 3, the first gas pipe 2, the generator 5, the generator 5 includes a second pip...

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Abstract

The invention discloses a heat recovery system and a defrosting control method. The heat recovery system comprises a first fluid pipe, a first gas pipe and a generator, wherein the generator comprisesa second pipeline; the first fluid pipe is connected with a first coolant flowing passage and a second coolant flowing passage; the first coolant flowing passage is used for enabling the first fluidpipe to communicate with the second pipeline and the first gas pipe through a first valve assembly; and the second coolant flowing passage is used for enabling the first fluid pipe to communicate withthe first gas pipe through a second valve assembly. Therefore, an appropriate defrosting manner can be selected; in the defrosting process, the risk that the pipeline in the machine unit is frozen caused by low-temperature coolants is reduced, so that the machine unit is protected, and the using performance of the machine unit is improved.

Description

technical field [0001] The invention relates to the field of units, in particular to a heat recovery system and a defrosting control method. Background technique [0002] At present, the principle of the hot water generator is to use the heat exchange between the refrigerant and water to produce hot water or cold water. When the system defrosts, the temperature of the refrigerant pipe of the hot water generator is likely to be lower than zero, which will cause the system pipe to freeze, and eventually cause the pipe to rupture, causing water to enter the system and damage the unit. In order to solve this problem, the defrosting can be controlled by detecting the water temperature. When the water temperature has no risk of freezing, the defrosting will be carried out, but when the water temperature is too low and the unit needs to defrost, it cannot be satisfied. [0003] Aiming at the problem in the related art that defrosting is easy to damage the pipeline when the inlet w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B47/02F25B15/02F24H4/02
CPCF24H4/02F25B15/025F25B47/02F25B2347/02Y02A30/27Y02B30/62
Inventor 周冰武连发王大海郭建民张仕强
Owner GREE ELECTRIC APPLIANCES INC
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