一种跨临界二氧化碳重力循环型冰浆热泵系统及运行方法
By using a transcritical carbon dioxide gravity circulation ice slurry heat pump system, the system utilizes the small temperature difference between the ice slurry storage tank and the evaporator for gravity-driven liquid supply circulation and a two-stage regenerator to reduce the compression ratio. This solves the problems of low efficiency and poor stability caused by temperature fluctuations of the low-temperature heat source in existing technologies, and achieves a highly efficient and stable heating effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- STATE GRID ZHEJIANG ELECTRIC POWER CO MARKETING SERVICE CENT
- Filing Date
- 2026-06-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing transcritical carbon dioxide heat pump systems suffer from low operating efficiency and poor operational stability due to temperature fluctuations in the low-temperature heat source, making it difficult to maintain efficient and stable operation under different climatic conditions and production processes.
A transcritical carbon dioxide gravity circulation ice slurry heat pump system is adopted. By setting up an ice slurry energy storage tank and an evaporator to form a small temperature difference gravity liquid supply circulation, the compression ratio is reduced by combining a two-stage regenerator and an ejector. The ice slurry energy storage tank stores sensible heat and latent heat as a stable low-temperature heat source, and the system is combined with a hot water energy storage tank to achieve peak-shaving operation.
It significantly improves the system's operating efficiency and stability. By reducing the compression ratio through small temperature difference gravity liquid supply circulation and two-stage regenerator, the influence of heat source temperature fluctuations is eliminated, enabling the system to operate efficiently under stable conditions.
Smart Images
Figure CN122408285A_ABST