Natural defrosting low-temperature evaporation system and control method thereof

A low-temperature evaporation, natural technology, applied in the direction of compressors, refrigerators, refrigeration components with multiple evaporators, etc., can solve problems such as affecting the cooling capacity or heating capacity of the unit, and prone to failure.

Pending Publication Date: 2019-03-29
GUANGDONG SHENLING ENVIRONMENT SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in low-temperature air conditioners and low-temperature heat pump systems, four-way valves are used to switch heat pumps or hot gas bypasses to defrost the evaporator,

Method used

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  • Natural defrosting low-temperature evaporation system and control method thereof
  • Natural defrosting low-temperature evaporation system and control method thereof

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Embodiment Construction

[0022] The present invention provides a natural defrosting low-temperature evaporation system and its control method. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] Herein, the front refers to the direction opposite to the wind flow direction, and the rear refers to the direction along the wind flow.

[0024] see figure 1 , a kind of natural defrost low-temperature evaporation system provided by the present invention, comprises first evaporator 1, second evaporator 2, compressor 3, condenser 4, expansion valve 5, and fan 6, compressor, condenser and expansion The valves are connected in sequence, the refrigerant outlets of the first evapor...

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PUM

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Abstract

The invention provides a natural defrosting low-temperature evaporation system. The natural defrosting low-temperature evaporation system comprises a first evaporator, a second evaporator, a compressor, a condenser, an expansion valve, and a fan, wherein the compressor, the condenser and the expansion valve sequentially communicate with one another, refrigerant outlets of the first evaporator andthe second evaporator are connected in parallel to an inlet of the compressor, and refrigerant inlets of the first evaporator and the second evaporator are connected in parallel to an outlet of the expansion valve; solenoid valves are arranged at the refrigerant inlets of the first evaporator and the second evaporator separately, the fan can blow air to the first evaporator and the second evaporator, and air valves are arranged on the front sides of the first evaporator and the second evaporator separately. The natural defrosting low-temperature evaporation system performs rotation work and natural defrosting through the two evaporators, the heat exchange amount of the natural defrosting low-temperature evaporation system cannot be affected during defrosting, and the failure rate is low.

Description

technical field [0001] The invention relates to the technical field of low-temperature evaporation systems, in particular to a low-temperature evaporation system for natural defrosting and a control method thereof. Background technique [0002] At present, in low-temperature air conditioners and low-temperature heat pump systems, four-way valves are used to switch heat pumps or hot gas bypasses to defrost the evaporator, and four-way valves are prone to failure when switching defrosts frequently, and hot gas bypass defrosts will cause Seriously affect the cooling capacity or heating capacity of the unit. [0003] It can be seen that the prior art needs to be improved and enhanced. Contents of the invention [0004] In view of the deficiencies of the prior art above, the purpose of the present invention is to provide a natural defrosting low-temperature evaporation system and its control method, through two evaporators to perform alternate work and natural defrosting, whic...

Claims

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Application Information

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IPC IPC(8): F25B5/02F25B41/00F25B41/04F25B49/02F25B47/02F25B41/20F25B41/40
CPCF25B5/02F25B41/00F25B47/02F25B49/02F25B41/20
Inventor 袁艳崔梓华顾剑彬张学伟梁洁平
Owner GUANGDONG SHENLING ENVIRONMENT SYST CO LTD
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