冷水机组及其控制方法、装置、存储介质以及电子设备

By adding a gas-liquid separation device to the chiller unit and adjusting the opening of the electronic expansion valve and the electric butterfly valve, the problem of excessive aerodynamic noise at high outlet water temperature of the screw chiller unit was solved, achieving effective noise reduction and improved lubricating oil efficiency.

CN117553442BActive Publication Date: 2026-07-17GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Filing Date
2023-11-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Screw chillers generate excessive aerodynamic noise under high outlet water temperature conditions, and conventional noise reduction measures are not very effective, affecting user experience.

Method used

By adding a gas-liquid separation device between the compressor and condenser of the chiller unit, and using level and temperature sensors to obtain the intermediate superheat, the opening of the electronic expansion valve and electric butterfly valve can be adjusted to control the ratio and superheat of the gas-liquid mixture and reduce aerodynamic noise.

Benefits of technology

It effectively reduced the aerodynamic noise of the chiller unit during operation, improved the lubricating oil return efficiency, stabilized the unit's operation, and improved the environmental noise problem.

✦ Generated by Eureka AI based on patent content.

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Abstract

本申请涉及一种冷水机组及其控制方法、装置、存储介质以及电子设备。该方法包括:获取冷水机组的气液分离装置的液位,其中,气液分离装置用于分离制冷剂液体和第一制冷剂气体,制冷剂液体是通过冷水机组的冷凝器对冷水机组的压缩机排出的第二制冷剂气体进行冷凝得到的,第一制冷剂气体是通过冷水机组的电子膨胀阀对冷凝器排出的制冷剂液体进行降压得到的;获取冷水机组的中间压力值和中间温度值,其中,中间压力值为气液分离装置的排气压力值,中间温度值为气液分离装置的排气温度值;根据中间压力值和中间温度值确定中间过热度;根据液位和中间过热度调节电子膨胀阀的开度。本申请解决了冷水机组在运行时产生的气动噪声太大的技术问题。
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