Process route for transforming shut-down coal-fired unit and formed new system

Abstract

The invention discloses a process route for transforming a shutdown coal-fired unit and a formed new system. The process route is characterized in that the shutdown coal-fired unit is transformed to form the new system; the formed new system does not burn coal any more and is not a coal generator set any more, the green energy storage function can be achieved, and green electricity or valley electricity such as wind electricity and photovoltaic electricity can be stored; according to the adopted process route, an electric energy storage system (8) is used for replacing a coal-fired boiler system (1) of a coal power unit, and an original steam power generation system (2) and a power transmission and transformation system (3) of an old coal power unit are utilized; the method is mainly applied to the transformation of shutdown, no start or removal of the coal power unit. According to the method, the coal power unit which is not started or to be dismantled is transformed, new functions and values are provided for the coal power unit, and therefore the situation that a large amount of coal power capital sinks and employment posts are reduced due to the fact that the coal power unit is simply shut down and dismantled is avoided.

Description

technical field [0001] The invention belongs to the technical field of reforming coal-fired units, in particular to a process route for reforming and shutting down coal-fired units and a new system formed. Background technique [0002] For a long time, coal-fired power has been the main source of power to ensure the security of power supply in my country. As of the end of 2019, my country's coal-fired power installed capacity was 1.04 billion kilowatts and power generation was 4.56 trillion kWh, accounting for 51.8% and 62.2% of the total installed capacity and total power generation, respectively. [0003] There is a problem of wasting energy resources when coal-fired units are due to be decommissioned and shut down. The components of coal-fired power units at home and abroad are designed for conventional strength rather than limited life, and the life of the unit is determined as 30 years according to general experience. The service time of foreign coal-fired units gener...

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