Wet air turbine power generation system based on recycling of garbage gasifying synthesis gas

Abstract

The invention discloses a wet air turbine power generation system based on recycling of garbage gasifying synthesis gas. The wet air turbine power generation system based on recycling of the garbage gasifying synthesis gas comprises a garbage gasifying system, a boiler system and a power generation system, wherein the power generation system comprises a mixer, a low-pressure air compressor, a high-pressure air compressor, a turbine, a generator, an air steam-gas heat exchanger, a CO2 steam-gas heat exchanger, a CO2 fan, a recycling fan, a mixing separator, a CO2 separator and a water supply feeding system of the boiler system; the CO2 separator is connected to space between a waste gas discharge opening of the boiler system and a gas inlet of the CO2 fan; and a gas outlet of the turbine is in parallel connection with heating channels of the CO2 steam-gas heat exchanger and the air steam-gas heat exchanger, and is then connected with the recycling fan and the mixing separator. By the wet air turbine power generation system based on recycling of garbage gasifying synthesis gas, a large amount of garbage is continuously gasified and incinerated, the treatment amount of the garbage is high, recycling efficiency of heat is high, regenerated chemical raw materials and synthesized natural gas can be extracted, and near zero emission of pollutants and CO2 can be realized effectively.

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 humid air turbine power generation system based on waste gasification synthesis gas recovery. Background technique [0002] The existing waste treatment technologies mainly include incineration, sanitary landfill, composting, and waste recycling. Among the conventional technologies for waste treatment, incineration treatment has the advantages of obvious reduction effect, thorough harmlessness, small land occupation, waste heat energy utilization, and less secondary pollution, which is in line with 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, gasification and incineration technology has been ...

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

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