Control method and device for a compression system and water heater for an air-source heat pump
Patent Information
- Application Number
- DE602022014778
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-06-28
- Filing Date
- 2022-01-10
- Publication Date
- 2025-05-14
- Estimated Expiration
- 2042-01-10
AI Technical Summary
The air energy heat pump water heater faces challenges in adjusting intermediate pressure and optimizing operation efficiency, particularly in scenarios where the temperature difference between the compressor's exhaust and the water tank's maximum temperature is not effectively managed.
A control method for a compression system that adjusts the first electronic expansion valve's target step number based on temperature differences, decreasing the target step number when the temperature difference is less than a preset value to prevent excessive refrigerant flow and ensure reliable operation.
The method improves the reliability and heating efficiency of the compression system by balancing the refrigerant flow, preventing liquid carryover in the compressor, and optimizing heating performance across varying temperature conditions.