Coal power unit condenser low load operation system and method
By designing an independent heat exchange zone and a small circulating water pump system in the condenser of the coal-fired power unit, the problems of low cooling water flow rate and high energy consumption during low-load operation were solved, achieving efficient and flexible condenser operation, adapting to different operating conditions and extending equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XIAN THERMAL POWER RES INST CO LTD
- Filing Date
- 2026-05-26
- Publication Date
- 2026-07-17
AI Technical Summary
Existing coal-fired power units suffer from problems such as excessively low condenser cooling water flow rate, excessive subcooling and dissolved oxygen, and high energy consumption of high-power circulating water pumps when operating at low loads. These issues result in low operating efficiency and make it difficult to achieve flexible and efficient operation under all working conditions.
Design a low-load operation system for a coal-fired power unit condenser, including an independent heat exchange zone, a small circulating water pump, a small circulating water pump bypass system, and an intelligent control system. The system uses a small circulating water pump to replace the large circulating water pump, and is equipped with an adjustable guide baffle and an intelligent control system to achieve online seamless switching and protection interlocking logic.
It significantly reduces the demand for circulating water and plant power consumption, improves heat exchange efficiency and operating economy, adapts to different operating conditions throughout the year, achieves flexible peak-shaving operation, and extends equipment life.
Smart Images
Figure CN122408484A_ABST