Control method and device for heat exchange system and heat exchange system

By introducing a refrigerant regulating branch in the heat exchange system and dynamically adjusting the refrigerant circulation volume, the problem of difficulty in regulating the refrigerant volume under different load conditions is solved, and the system performance and energy efficiency are improved.

CN119334016AActive Publication Date: 2025-01-21QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +3
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Patent Information

Application Number
CN202310896297.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-07-20
Publication Date
2025-01-21
Estimated Expiration
2043-07-20

AI Technical Summary

Technical Problem

It is difficult for existing heat exchange systems to effectively adjust the refrigerant volume under different load conditions, resulting in poor system performance and low efficiency at overload or low load.

Method used

By introducing a refrigerant regulating branch in the heat exchange system, the liquid storage solenoid valve and the air supply solenoid valve are used to adjust the refrigerant storage and air supply volume, and the refrigerant circulation volume is dynamically adjusted according to the operating parameters of the compressor.

Benefits of technology

The rationality of the refrigerant injection under different working conditions, improved the performance and energy efficiency of the heat exchange system, and avoiding low efficiency when overloaded or low load.

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Abstract

The invention relates to the technical field of heat exchange systems, and discloses a control method and device for a heat exchange system and the heat exchange system. The heat exchange system comprises a heat exchange loop and a refrigerant adjusting branch, the heat exchange loop comprises a compressor, an outdoor heat exchanger, a throttler and an indoor heat exchanger which are sequentially connected, the liquid storage end of the refrigerant adjusting branch is connected with the heat exchange loop located between the throttler and the indoor heat exchanger, and the air supply end of the refrigerant adjusting branch is connected with an air return opening of the compressor; the control method comprises the steps that compressor operation parameters are obtained; and according to the operation parameters of the compressor, the refrigerant storage amount of the refrigerant adjusting branch is adjusted. According to the embodiment, the refrigerant storage amount of the refrigerant adjusting branch can be adjusted according to the operation parameters of the compressor, so that the refrigerant filling reasonability of the heat exchange system under different working conditions is improved, and the performance of the heat exchange system is improved.
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Citation Information

Patent Citations

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    CN110553415A

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