Heat supply system and method suitable for thermal power plant peak adjustment

Abstract

The invention relates to a heat supply system of a thermal power plant, in particular to a heat supply system and method suitable for thermal power plant peak adjustment. The system comprises a powergeneration system and a heat supply network, wherein the power generation system is used for converting heat energy into electric energy, and outputting partial residual heat energy to the heat supplynetwork through a pipeline; the heat supply network comprises a circulation loop; and a heat exchanger, at least one heat storage system and at least one first-grade user side are arranged on the circulation loop of the heat supply network. The heat supply network exchanges heat with the residual heat energy of the power generation system through the heat exchanger; the heat storage system is parallelly connected onto the circulation loop of the heat supply network, and is used for storing the heat energy at the heat supply trough period and releasing the heat energy at the heat supply peak time; and the first-grade user side is distributed on the heat supply network, and is used for utilizing heat energy in the heat supply network and returning the heat energy to the heat supply network.The heat supply system and method suitable for thermal power plant peak adjustment provided by the invention aims to solve the problems that the heat supply system carries out peak-load shifting so as to cause uneven cold and hot at far and near ends under the situations with the quick increase of a heat supply area and the great demand of heat supply.

Description

technical field [0001] The invention relates to a heat supply system of a thermal power plant, in particular to a heat supply system and method suitable for peak regulation of a thermal power plant. Background technique [0002] In recent years, with the continuous increase of environmental protection policies, the original small and medium-sized boilers that were responsible for large-scale heating in northern my country have been continuously dismantled and transformed. People have higher and higher environmental protection requirements for coal heating and energy supply, and the heating pressure is increasing. protrude. [0003] However, due to the characteristics of my country's coal-rich, oil-poor, and gas-poor energy structure, vast geographical span, and large-scale population, coal-fired heating will still be the main method of heating for a long period of time in the future. Among them, coal-fired heating mainly includes two methods: cogeneration of heat and power a...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a heat supply system and method suitable for peak regulation in thermal power plants, so as to solve the problem of peak-shaving and valley-filling of the heating system and uneven heating and cooling at the far and near ends under the situation of rapid increase in heating area and strong heating demand. question

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