Thermal power generator set and refuse incinerator working medium combined power generation system

A technology for waste incinerators and thermal power units, applied in incinerators, combined combustion mitigation, machines/engines, etc., can solve problems such as low efficiency and steam turbine cycle efficiency of less than 23%, so as to improve heat utilization efficiency and unit The effect of large capacity and improved cycle efficiency

Inactive Publication Date: 2017-11-07
HARBIN BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing technology of using waste incineration to generate electricity generally consists of multiple waste incinerators and one or several steam turbine generators, but the efficiency of this unit is not high, and the cycle efficiency of the steam turbine is less than 23%.

Method used

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  • Thermal power generator set and refuse incinerator working medium combined power generation system

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specific Embodiment approach 1

[0017] Specific implementation mode one: combine figure 1 Describe this embodiment, the combined power generation system of a thermal power unit and a waste incinerator working medium in this embodiment includes a waste incinerator body 1, a pulverized coal boiler body 2, a deaerator 3 and a turbogenerator set 7,

[0018] The pulverized coal boiler body 2 communicates with the deaerator 3 through the pulverized coal boiler feed water pump 4, and the pulverized coal boiler main steam pipe 6 of the pulverized coal boiler body 2 and the reheater outlet pipe 11 of the pulverized coal boiler communicate with the steam The turbo-generator set 7 establishes a connection relationship, and the high-pressure exhaust steam of the turbo-generator set 7 is introduced into the reheater heating surface of the pulverized-coal boiler body 2 by the reheater inlet pipe 8 of the pulverized-coal boiler to absorb heat;

[0019] The waste incinerator body 1 communicates with the deaerator 3 through ...

specific Embodiment approach 2

[0023] Specific implementation mode two: combination figure 1 To illustrate this embodiment, a cut-off valve 12 is arranged on the main steam pipe 9 of the waste incinerator described in the combined power generation system of the thermal power unit and the waste incinerator in this embodiment. In this way, the main steam pipe 9 of the waste incinerator is provided with a cut-off valve, and when the waste incinerator is shut down, the body 1 of the waste incinerator and the body 2 of the pulverized coal boiler can be disconnected.

specific Embodiment approach 3

[0024] Specific implementation mode three: combination figure 1 To illustrate this embodiment, the pulverized coal boiler feed water described in the thermal power unit and waste incinerator combined power generation system of this embodiment is drawn through the pulverized coal boiler feed water pump 4 and then introduced into the pulverized coal boiler body 2 after being heated by the high pressure heating system 13 .

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Abstract

The invention provides a thermal power generator set and refuse incinerator working medium combined power generation system and belongs to the technical field of energy utilization. The thermal power generator set and refuse incinerator working medium combined power generation system comprises a refuse incinerator body, a pulverized coal boiler body, a deaerator and a steam turbine generator set. The pulverized coal boiler body communicates with the deaerator through a pulverized coal boiler water feed pump. A main steam pipe of the pulverized coal boiler body and an outlet pipe of a reheater of the pulverized coal boiler establish the connection relationship with the steam turbine generator unit. The refuse incinerator body communicates with the deaerator through a refuse incinerator water feed pump. A refuse incinerator main steam pipe of the refuse incinerator body and an inlet pipe of the reheater of the pulverized coal boiler converge. Under the action of a steam mixer, main steam of the refuse incinerator and inlet steam of the reheater of the pulverized coal boiler are mixed and guided into a heating surface of the pulverized coil boiler to continue conducting heating. According to the thermal power generator set and refuse incinerator working medium combined power generation system, through working medium combination of the thermal power generator set and the refuse incinerator, the refuse power generation efficiency and circulation efficiency are improved, the heat utilization efficiency of refuse is improved, and the equipment investment of a condensing type steam turbine generator set system of the refuse incinerator is saved.

Description

technical field [0001] The invention relates to a power generation system in the power generation industry, in particular to a combined power generation system utilizing thermal power units and waste incinerator working fluid. Background technique [0002] The garbage processing capacity of the existing garbage incinerators is generally less than 1200t / d, and the calorific value of the garbage is low, so the heat capacity of the incinerator is small. At present, waste heat utilization methods of waste incinerators are limited by conditions, and natural circulation waste heat boilers with large heat storage capacity are mostly used to produce medium-pressure 4MPa / 400℃ steam for steam turbine generators to generate electricity. Due to the low steam parameters, the working medium circulation efficiency is low, generally between 18-23%, which is much lower than the working medium circulation efficiency of large thermal power units (usually >43%). [0003] The existing techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K13/00F01K11/02F01D15/10F23G5/44
CPCY02E20/12F01K13/00F01D15/10F01K11/02F23G5/44
Inventor 于强黄莺韩升利于景泽殷亚宁苗闪闪
Owner HARBIN BOILER
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