Control method for improving water outlet temperature of heat pump system and heat pump system
By real-time detection and dynamic adjustment of water pump flow and compressor frequency, the stability and energy efficiency issues of high-temperature operation of heat pump systems have been solved, achieving stable acquisition of high outlet water temperature and improved energy efficiency.
CN122408331APending Publication Date: 2026-07-17GUANGDONG NEW ENERGY TECH DEV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG NEW ENERGY TECH DEV
- Filing Date
- 2026-05-11
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing heat pump systems are prone to failure when operating at high temperatures, leading to frequent shutdowns. Furthermore, cascade heat pump systems have complex structures, high costs, and reduced energy efficiency ratios.
Method used
By monitoring the operating parameters of the heat pump system in real time, the water pump flow rate and compressor frequency are dynamically adjusted to control the condensing temperature within a safe range, and the sensible heat of the superheated refrigerant is used to increase the outlet water temperature.
Benefits of technology
It achieves stable acquisition of high outlet water temperature, avoids compressor failure, reduces system cost, and improves energy efficiency ratio.
✦ Generated by Eureka AI based on patent content.
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Figure CN122408331A_ABST
Abstract
本发明涉及热泵系统技术领域，尤其涉及一种提高热泵系统出水温度的控制方法及热泵系统。该提高热泵系统出水温度的控制方法包括以下步骤：S1、实时检测热泵系统的运行参数，运行参数包括进水温度Ti、出水温度TO、冷凝温度Tc、进出水温差ΔTw及进出水温差变化量ΔTwv；S2、判断热泵系统是否满足高温运行条件；S3、当满足高温运行条件，根据出水温度TO、出水温度控制目标TOs、进出水温差ΔTw和进出水温差变化量ΔTwv，对水泵流量进行动态调节；若不满足高温运行条件，则按常规逻辑控制运行；S4、根据冷凝温度Tc对压缩机运行频率进行调节。该提高热泵系统出水温度的控制方法不仅能获得较高的出水温度，还能提升热泵系统运行的稳定性，提升系统能效比。
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