Comparison of Technical Routes for Thermoelectric Decoupling of Coal-fired Power Units
The aim was to deeply explore various technical routes for thermal power plant thermoelectric decoupling,including low-pressure cylinder removal heating technology,bypass combined heating technology,high-pressure electrode boiler technology,and molten salt thermal storage high-energy industrial steam supply technology.By comparing and analyzing the principles,application scenarios,key technical points,and advantages and disadvantages of various technologies,the aim was to find the best thermoelectric decoupling scheme suitable for different scenarios.The research results indicate that each technology route has its own advantages and disadvantages,and should be selected based on the actual situation of the power plant and peak shaving needs.The low-pressure cylinder removal heating technology is suitable for scenarios with low heating demand under low load.The bypass combined heating technology has strong thermoelectric decoupling ability but poor thermal economy.Although the investment cost of the high-pressure electrode boiler technology is high,it can achieve fast response and efficient energy conservation.The high-level industrial steam supply technology of molten salt thermal storage is suitable for scenarios that produce high-quality steam.
thermoelectric decouplinghigh and medium pressure cylinder bypassheat storageelectrode boiler