With the overall goal of “3060” proposed

the energy and power sector is a key area and main battlefield for implementing the “3060” goal.Promoting the clean and efficient development of coal-fired power is an important measure to promote coal conservation and carbon reduction in the energy industry.The coal-fired power industry has always regarded energy conservation and consumption reduction

as well as the construction of efficient and clean coal-fired power plants

as important development directions.This technical solution is based on a million coal-fired heating unit under construction in China

which utilizes low-level thermal energy in a reasonable cascade manner

studies the driving mode of the heating network circulation pump

fully utilizes the pressure difference between the heating extraction steam and the heating network heater

drives the heating network circulation pump with heating steam

and the exhaust steam enters the heating network heater to heat the heating network circulation water.The energy cascade utilization technology can improve the thermal economy of the unit during the heating period

reduce the coal consumption for unit power supply

and lower carbon emissions.