Heat pump water heater and control method thereof
By using a segmented condenser piping and mixed refrigerant design, combined with a regenerator and control valve assembly, the problems of low water supply temperature and complex structure in traditional heat pump water heaters have been solved, achieving efficient heating and temperature increase.
CN122328895APending Publication Date: 2026-07-03QINGDAO HAIER SMART TECH R & D CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGDAO HAIER SMART TECH R & D CO LTD
- Filing Date
- 2025-01-03
- Publication Date
- 2026-07-03
AI Technical Summary
Technical Problem
Traditional heat pump water heaters have difficulty supplying water temperatures above 70℃, have low heating efficiency, and complex system structures.
Method used
By employing segmented condenser piping and mixed refrigerant, combined with a regenerator and control valve assembly, the low-pressure refrigerant is heated by recovering condensation heat, and the refrigerant composition and quantity can be flexibly adjusted to optimize the refrigerant cycle.
Benefits of technology
Increase the water supply temperature to above 80℃, simplify the system structure, improve heating efficiency, reduce water tank volume, and meet the temperature requirements for direct drinking hot water.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122328895A_ABST
Abstract
This application relates to the field of heat pump technology, specifically providing a heat pump water heater and its control method. The heat pump water heater includes a heat pump system, which comprises a condenser, a regenerator, and a control valve. The refrigerant circulating in the refrigerant circuit of the heat pump system is a mixed refrigerant. The refrigerant piping of the condenser includes a first section and a second section of condenser piping connected in series. The regenerator can connect to the first section and / or the second section of condenser piping based on the switching of the control valve, so as to heat the low-pressure refrigerant in the refrigerant circuit using the refrigerant flowing through the first section and / or the second section of condenser piping. With this configuration, it is possible to heat the low-pressure refrigerant by recovering the condensation heat in the first section and / or the second section of condenser piping, thereby ensuring the heating effect of the heat pump system.
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