Water source heat exchanger and freeze detection method using the same
KR102993251B1Active Publication Date: 2026-07-21JANG HAN ENGINEERS
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Patent Information
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- JANG HAN ENGINEERS
- Filing Date
- 2025-12-09
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
Conventional water heat exchangers in water source heat pump systems face issues with freezing in low-temperature environments, leading to efficiency loss and potential damage due to ice formation, with no effective real-time detection or rapid thawing methods, requiring system shutdowns for maintenance.
Method used
A water heat exchanger with a separate freezing removal path and temperature sensors to detect temperature inversions, enabling early detection and proactive heating fluid supply to thaw frozen areas without system shutdown.
Benefits of technology
Enables continuous operation in low-temperature conditions by actively removing freezing and reducing maintenance needs, enhancing system safety and efficiency.
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Smart Images
Figure 112025138930049-PAT00002_ABST
Abstract
A water heat exchanger capable of rapidly removing freezing is disclosed by arranging a separate freezing removal path independent of the operating path inside the water heat exchanger. A water source heat exchanger comprises a plurality of stacked heat exchange plates, a plurality of water source flow paths disposed between the plurality of heat exchange plates, a plurality of heat medium flow paths disposed between the plurality of heat exchange plates, a heating fluid flow path disposed between the plurality of water source flow paths, a temperature sensor for measuring the water source outlet temperature (T_o) of a water source discharged through the plurality of water source flow paths and the heat medium outlet temperature (t_o) of a heat medium discharged through the plurality of heat medium flow paths, and a control unit for heating the plurality of water source flow paths by supplying a heating fluid to the heating fluid flow paths when the phenomenon t_o < T_o occurs more than a preset number of times during a preset time.
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