一种联合循环机组空冷塔提效防冻系统
By optimizing the layout of the spray system through the LNG cold energy and waste heat boiler tail flue gas recovery system, the problems of low efficiency of air-cooled towers in high summer temperatures and freezing damage in winter have been solved, achieving efficient operation and safety of the combined cycle unit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUANENG POWER INT INC
- Filing Date
- 2023-02-27
- Publication Date
- 2026-07-17
AI Technical Summary
Air-cooled towers have low heat exchange efficiency in the high temperatures of summer and are prone to freezing damage in the extreme low temperatures of winter, which affects the economic efficiency and safety of combined cycle units.
The LNG gasification system recovers cold energy for spray cooling, and the waste heat from the flue gas at the tail end of the waste heat boiler is used for spray heating. The heat exchange performance of the air-cooled tower is improved and freezing is prevented by optimizing the nozzle arrangement.
In summer, improve the heat exchange performance of the air-cooled tower and reduce the dry-bulb temperature of the air; in winter, prevent the air-cooled radiator from freezing and ensure the safe operation of the unit.
Smart Images
Figure CN116136367B_ABST