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Gas turbine-steam turbine coaxial combined power generation system based on waste gasification

A technology of steam turbine and combined power generation, which is applied in the directions of steam generation, steam engine installation, steam generation installation, etc., can solve the problems of easy ash accumulation, large feeding amount, large amount of flue gas, etc., and achieves low waste residue and high utilization rate. Effect

Active Publication Date: 2017-01-04
CHONGQING SANFENG ENVIRONMENTAL IND GRP +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the fly ash content in the flue gas after incineration is high, the boiler ash is heavy, and the ash cleaning maintenance period is short
[0007] 2. With the increasing amount of garbage generated and piled up like mountains, the amount of garbage treatment must be effectively increased in order to meet market demand
[0010] Existing technologies such as the following patents: external combustion wet air gas turbine power generation system (ZL 01120378.1), gas turbine power generation system and its operation control method (ZL 200880007113.7), dual-fuel combustion-supporting gas-steam combined cycle system (ZL 200610062631.1), pulverized coal Gas turbine power generation system and process method for producing pulverized coal two-phase flow fuel (ZL200610062055.0), multi-column segmental drive compound domestic waste incinerator (ZL200710092508.9) and two-stage waste incinerator (ZL201010268376.2). Problems involved: no combination of waste heat treatment methods, secondary pollution control of waste heat treatment, complex flue gas components, etc.; existing heat treatment thermochemical reactions are dominated by oxidation reactions, supplemented by reduction reactions, which are prone to secondary pollution and the combustion peroxygen coefficient is large, the primary air and secondary air supply are large, and the dust content in the flue gas is relatively high, which has a great impact on the heat energy recovery system and flue gas treatment system. It is easy to accumulate dust and has a large amount of flue gas. , which relatively reduces the heat conversion efficiency; the deep purification of synthetic flue gas after waste gasification and incineration requires the cleanliness of synthetic flue gas to meet the requirements of gas turbines, and the application of waste gasification incineration-gas-steam turbine combined cycle power generation; waste heat treatment method The innovation of reducing the amount of flue gas, changing the composition of flue gas, the chemical reaction environment becomes a reduction reaction, and the relative improvement of thermal efficiency

Method used

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  • Gas turbine-steam turbine coaxial combined power generation system based on waste gasification
  • Gas turbine-steam turbine coaxial combined power generation system based on waste gasification
  • Gas turbine-steam turbine coaxial combined power generation system based on waste gasification

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Embodiment Construction

[0045] see figure 1 , is a preferred embodiment of a gas and steam turbine coaxial combined power generation system based on waste gasification, including a waste gasification incineration system, a boiler system, and a combined cycle power generation system 5, and the boiler system has a steam drum 408, Superheater 406.

[0046] see figure 2 , the combined cycle power generation system 5 includes a mixer 501, an air compressor 503, a synthetic flue gas compressor 504, a synthetic flue gas combustion chamber 505, a turbine 506, a steam turbine, a generator 502, a waste heat boiler 507, and a feed water input system, so The rotating shafts of the air compressor 503, the synthetic flue gas compressor 504, the turbine 506, the steam turbine and the generator 502 are sequentially connected by power transmission shafts and rotate synchronously.

[0047] The side wall of the mixer 501 is provided with a first inlet and a second inlet, the bottom of the mixer 501 is provided with ...

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Abstract

The invention discloses a gas turbine-steam turbine coaxial combined power generation system based on waste gasification. The gas turbine-steam turbine coaxial combined power generation system comprises a waste gasification incineration system, a boiler system and a power generation system, wherein the power generation system comprises a mixer, an air compressor, a synthetic flue gas compressor, a synthetic flue gas combustion chamber, a turbine, a steam turbine, a power generator, a waste heat boiler and a water supply input system; the inlet of the mixer is connected with the saturated steam outlet of a steam manifold and the air outlet of the air compressor; the water outlet of the mixer is connected with the water inlet of the steam manifold; the steam outlet of the mixer is connected with the steam inlet of a super-heater; the gas inlet of the flue gas compressor is connected with the waste gas discharge outlet of the boiler system; the steam outlet of the super-heater and the gas outlet of the flue gas compressor are connected with the synthetic flue gas combustion chamber, the turbine and the waste heat boiler in sequence; the steam outlet of the waste heat boiler is connected with the steam inlet of the steam turbine; the turbine, the steam turbine and the power generator are in power connections. By adopting the gas turbine-steam turbine coaxial combined power generation system, large-scale continuous waste gasification treatment can be performed, high heat recovery efficiency is achieved, and pollutant discharge is reduced.

Description

technical field [0001] The invention belongs to the technical field of solid waste incineration treatment and resource treatment, and in particular relates to a gas and steam turbine coaxial combined power generation system based on waste gasification. Background technique [0002] The existing waste treatment technologies mainly include incineration, sanitary landfill, composting, and waste recycling. Among the conventional waste treatment technologies, incineration has the advantages of obvious reduction effect, complete harmlessness, small land occupation, utilization of waste heat energy, and less secondary pollution, which meets the strategic requirements of my country's sustainable development. However, with the continuous improvement of environmental protection requirements at home and abroad, how to strengthen the control of secondary pollution is particularly important. Therefore, waste pyrolysis and gasification incineration technology is gradually pushed to the r...

Claims

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Application Information

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IPC IPC(8): F22B33/18F23G5/027F23G5/44F23G5/46F23J15/02F23J15/04F01D15/10F01K11/02
CPCY02E20/12F22B33/18F01D15/10F01K11/02F23G5/0276F23G5/44F23G5/444F23G5/46F23G2201/40F23J15/027F23J15/04F23J2217/40F23J2217/50
Inventor 周雄林顺洪李长江丁又青徐明杨鲁柏继松季炫宇田野
Owner CHONGQING SANFENG ENVIRONMENTAL IND GRP
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