低负荷下供热灵活性的优化调整运行技术

Optimized Adjustment Operation Technology Based on Heating Flexibility Under Low Load

目前,我国火力发电厂所在区域实现热电联产、集中供热,在节约能源、改善环境等方面均具有明显的效益,超临界及超超临界600 MW以上大型燃煤机组逐步占领了我国电力市场的主流地位.热电联产在供热的同时,由于火电负荷率低,在供热期机组参与调峰和保障供热可靠性尤其重要,这就要求提高低负荷下供热灵活性及优化调整运行以适应电网的需求.

At present,China’s thermal power plants are located in areas where heat and power cogeneration and central heating are provided.They have obvious benefits in terms of energy conservation and environmental improvement.Super-critical and ultrasupercritical coal-fired units above 600 MW gradually occupy China’s electricity.The mainstream position of the market.At the same time of heat and power cogeneration,due to the low load rate,it is especially important for the unit to participate in peak shaving and ensure the reliability of heating during the heating period.This is to improve the heating flexibility under low load and optimize the adjustment operation to adapt to the grid.demand.