Waste incineration power generation device capable of improving main steam parameters

Abstract

The invention provides a waste incineration power generation device capable of improving main steam parameters. The waste incineration power generation device comprises a waste heat boiler, a steam pocket, a coal-fired boiler and a steam turbine, wherein the waste heat boiler is provided with a low-temperature heating surface for heating feedwater; the feedwater is separated into saturated water and saturated water steam through the steam pocket, and the saturated water returns to the low-temperature heating surface of the waste heat boiler; the coal-fired boiler is provided with a high-temperature heating surface, and the saturated water vapor separated from the steam pocket is overheated at the high-temperature heating surface; and the overheated main steam enters a high-pressure cylinder to work and drives a generator to generate electricity, the waste steam discharged from the high-pressure cylinder returns to the high-temperature heating surface of the coal-fired boiler for reheating, the reheating steam enters a low-pressure cylinder to work and drives the generator to generate electricity, and the waste steam discharged from the low-pressure cylinder enters a water supply circulation unit to be converted into the feedwater again. According to the waste incineration power generation device capable of improving the main steam parameters, the main steam parameters of wasteincineration power generation can be improved, and the intermediate reheating technology is used, so that the generating capacity of the steam turbine and the economic benefits of a incineration powerplant are improved.

Description

technical field [0001] The invention relates to waste incineration power generation technology, in particular to a waste incineration power generation device for improving main steam parameters. Background technique [0002] The higher the main steam parameter is, the more the power generation capacity of the waste incineration power plant will be, and the better the economic benefits will be. There have been dozens of pipe explosion accidents, which have caused irreparable losses to the property and personal safety of enterprises. One of the current methods is to use the process of coupling the thermal power unit and the working fluid of the waste incinerator to generate electricity. This process uses the superheated working medium of the waste incinerator as the low-pressure cylinder of the turbine to provide high-temperature steam. Although the main steam parameters can be improved, due to waste incineration The superheater in the furnace may superheat the steam to a hig...

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Problems solved by technology

[0002] The higher the main steam parameter is, the more the power generation capacity of the waste incineration power plant will be, and the better the economic benefits will be. There have been dozens of pipe explosion accidents, causing irreparable losses to the property and personal safety of enterprises

One of the current methods is to use the process of coupling the thermal power unit and the working fluid of the waste incinerator to generate electricity. This process uses the superheated working medium of the waste incinerator as the low-pressure cylinder of the turbine to provide high-temperature steam. Although the main steam parameters can be improved, due to waste incineration The superheater in the furnace may have to superheat the steam to a higher temperature, so this method worsens the high temperature corrosion problem to a certain extent, and makes the whole system suffer from higher safety hazards

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