MEH控制系统实现高低压汽源自动切换的探讨

A Discussion on the MEH Control System to Realize the High and Low Pressure Steam Source Automatic Switch

针对当前电厂汽动给水泵高低压汽源自动切换的难题,如何实现从小机低压汽源自动切到高压汽源,保证锅炉给水的稳定。通过试验和控制思路修改来实现,以便降低机组的事故和非停的发生。因此进行了大量理论和实际的探索。

Aiming at the existing problem of the automatic switching of the high and low pressure steam source for the power plant steam turbine feed water pump. How to achieve the small steam turbine switch to the high-pressure steam source automatically as the low-pressure steam source is lost, so as to ensure the stability of the boiler feed water supply. Throughtesting and change of control ideas, the occurrence of accidents and non-stop could be reduced. Therefore, the authors have made a lot of theoretical and practical exploration.