汽液两相流技术在火电厂高低压加热器疏水改造中应用

Application of vapor-liquid two-phase flow technology in upgrading high/low pressure heater drain system of thermal power plant

针对传统的基地式气动调节方式存在的高、低压加热器水位失控,加热器满水位或无水位运行及加热器水位波动大等问题,将汽液两相流自调节水位控制装置应用在125 MW汽轮发电机组高、低加热器疏水改造系统上,保证了加热器的水位稳定性,提高了机组的安全性,节约了燃煤和维护费用。

Aiming at the problems existed in traditional basis pneumatic regulating mode such as the water level of high/low pressure heater becoming out of control, operation of heater with full water level or no water level, water - level fluctuation of heater and so on, tile application of vapor - liquid two - phase flow automatic - regulation water level control device in upgrading high/low heater hydrophobic modifica- tion system of 125 MW turboset has guaranteed the stability of water level of heater, enhanced the safety of the turboset and saved the fire coal and costs of maintenance.