Multi-power-source heat storage peak regulation power station transformed from coal-fired power plant and peak regulation method

Abstract

The invention discloses a multi-power-source heat storage and peak regulation power station transformed from a coal-fired power plant and a peak regulation method. The multi-power-source heat storage and peak regulation power station comprises a high-pressure heater and a high-temperature heat storage tank, a heat exchange medium inlet of the high-temperature heat storage tank is connected with a heat exchange medium outlet of a low-temperature heat storage tank, and the high-temperature heat storage tank is connected with a heat storage tank electric heating device. A heat exchange medium outlet of the high-temperature heat storage tank is connected with a superheater and a reheater, a heat exchange medium outlet of the superheater is connected with an evaporator, a heat exchange medium outlet of the evaporator and an outlet of the reheater are connected to the preheater, and a heat exchange medium outlet of the preheater is connected with the low-temperature heat storage tank; a feed water outlet of the high-pressure heater is connected with the preheater, a preheated water outlet of the preheater is connected with an evaporator and the superheater, and a steam outlet of the superheater is connected with a high-pressure and high-temperature heat user and a turboset system; and a steam extraction outlet and a steam outlet of the turboset system are correspondingly connected with the shell side of the high-pressure heater and the reheater, and a steam outlet of the reheater is connected with the medium-pressure high-temperature heat user and the turboset system. The multi-power-source heat storage and peak regulation power station transformed from the coal-fired power plant is low in transformation cost and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of thermal power plant heat storage and power generation systems, in particular to a multi-power source heat storage peak-shaving power station and a peak-shaving method for transformation of a coal-fired power plant. Background technique [0002] Under the current high proportion of renewable energy power generation system, the proportion of coal power will be greatly reduced, and coal power will also undertake the functions of social heating and steam supply, and actively support the stable power grid. With the requirement of dual carbon targets, the problem of coal survival is becoming more and more serious. How to reduce coal consumption and convert it into new energy supply is very difficult. At present, many coal-fired power stations adopt measures such as heating transformation and flexible peak shaving to reduce Coal consumption in power generation and power supply, but it is still not possible to qu...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems existing in the prior art, the present invention provides a multi-power heat storage peak-shaving power station and a peak-shaving method transformed from a coal-fired power plant to solve how to convert the coal-electricity peak-shaving system into a new energy peak-shaving system at low cost system problem

Images