一种双温区冷库制冷系统及其控制方法
By using a dual-temperature zone cold storage refrigeration system with refrigerant flow distribution and automatic compressor switching, the problems of limited functionality and high defrosting energy consumption in small and medium-sized cold storage facilities have been solved. This has resulted in efficient and stable refrigeration, expanded the functionality of cold storage facilities, and reduced energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG MODERN AGRI EQUIP RES INST
- Filing Date
- 2026-06-17
- Publication Date
- 2026-07-17
AI Technical Summary
Small and medium-sized cold storage refrigeration systems have limited functionality, high defrosting energy consumption, and the risk of material damage due to single-unit failures, especially in agricultural production areas where there is a lack of pre-cooling and refrigeration functions and efficient waste heat utilization technology.
The cold storage adopts a dual-temperature zone refrigeration system. The refrigerant flow is adjusted through the refrigerant flow distribution module to achieve on-demand distribution of cooling capacity. When one compressor fails, the other compressor will automatically switch to service. The gaseous refrigerant at the outlet of the high-temperature zone heat exchanger is used for defrosting.
It improves the refrigeration capacity of cold storage, expands the functions of cold storage, reduces defrosting energy consumption, and ensures the stability and efficient operation of the refrigeration system.
Smart Images

Figure CN122408359A_ABST