Electronic expansion valve steering control method and device and refrigeration equipment

By acquiring temperature parameters and expansion valve information, comparing and determining the PID valve steering factor, and adjusting the valve step of the electronic expansion valve, the problem of difficult low-temperature cooling is solved, and the cooling effect and temperature control accuracy of the refrigeration equipment are improved.

CN117128680BActive Publication Date: 2026-07-21JIANGSU TUOMILUO ENVIRONMENTAL TEST EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU TUOMILUO ENVIRONMENTAL TEST EQUIP CO LTD
Filing Date
2023-08-30
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing electronic expansion valve control methods have difficulties in low-temperature cooling, leading to increased evaporation pressure, making it difficult to achieve the target temperature and affecting the cooling effect of refrigeration equipment.

Method used

By acquiring temperature parameters and the valve step information of the electronic expansion valve, comparing the temperature parameters with the preset turning temperature setting value, determining the PID valve turning factor, and adjusting the valve step of the electronic expansion valve according to the factor to regulate the evaporation pressure and temperature.

Benefits of technology

It improves the rate of low-temperature cooling and the cooling effect of refrigeration equipment, and achieves more precise temperature control.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the application discloses an electronic expansion valve steering control method, device and refrigeration equipment. The method comprises the following steps: acquiring a temperature parameter and valve step information of an electronic expansion valve; comparing the temperature parameter with a preset steering temperature setting value; determining a PID valve steering factor according to a comparison result, the valve step information of the electronic expansion valve and the temperature parameter; and adjusting the valve step of the electronic expansion valve according to the PID valve steering factor. The technical scheme provided by the embodiment of the application solves the problem that the control method of the electronic expansion valve has difficulty in low-temperature cooling, which affects the refrigeration effect of the refrigeration equipment, and becomes a technical problem to be solved in the industry.
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