Control method of electronic expansion valve and related device thereof
CN120799796APending Publication Date: 2025-10-17GUANGDONG PHNIX ECO ENERGY SOLUTION
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Patent Information
- Application Number
- CN202510880049.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2025-10-17
AI Technical Summary
Technical Problem
In the prior art, the control method of the electronic expansion valve lacks analysis of temperature, which makes it difficult to maintain the compression ratio of the compressor within an appropriate range and increases the noise level.
Method used
Based on the working mode of the heat pump system, the initial opening value of the electronic expansion valve is determined, the difference between the ambient temperature and the inlet water temperature is obtained, and the opening of the electronic expansion valve is adjusted using a preset adjustment algorithm to achieve precise control of the compressor.
Benefits of technology
The noise of the compressor is reduced and the operating efficiency of the compressor is improved.
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Smart Images
Figure CN120799796A_ABST
Abstract
The invention relates to a control method of an electronic expansion valve and a related device thereof, and the control method comprises the following steps: determining an initial opening value of the electronic expansion valve based on a working mode of a heat pump system; the environment temperature and the water inlet temperature of the periphery of the heat pump system are obtained, and a target temperature difference value is obtained according to the absolute value of the difference value between the environment temperature and the water inlet temperature; according to the target temperature difference value and a preset adjusting algorithm, the opening adjusting value of the electronic expansion valve is determined; and the opening degree of the electronic expansion valve is adjusted according to the initial opening degree value and the opening degree adjusting value of the electronic expansion valve. According to the scheme, the opening degree of the electronic expansion valve can be controlled, the noise of the compressor is reduced, and the operation efficiency of the compressor is improved.
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