一种黑水闪蒸乏汽余热回收系统的水位调控方法及系统
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HIT HARBIN INST OF TECH KINT TECH
- Filing Date
- 2026-02-09
- Publication Date
- 2026-07-17
AI Technical Summary
In existing black water flash steam waste heat recovery systems, the water replenishment method is mostly static control triggered by liquid level threshold, which cannot respond to heat load fluctuations in a timely manner, resulting in large fluctuations in heat exchange efficiency. Excessive water replenishment dilutes the temperature of the heat exchange medium, and without combining key parameters such as heat exchange efficiency and vacuum degree, it forms a passive response and cannot achieve active optimization of heat utilization efficiency.
By acquiring various key parameters such as exhaust steam flow rate, black water heat load coefficient, and vacuum degree, a dynamic water replenishment calculation model is constructed. Combined with the PID algorithm, the water replenishment amount is corrected in real time, and the actual water replenishment amount of the hot water tower is accurately calculated, avoiding heat exchanger impact vibration and ensuring stable heat exchange efficiency.
It effectively reduces liquid level fluctuations, improves the heat transfer effect of heat exchangers, increases waste heat utilization rate from less than 70% to a higher level, improves system adaptability and reliability, and extends equipment life.
Smart Images
Figure CN121657761B_ABST