Fuel and gas-fired boiler oxygen-enriched combustion smoke nearly-zero-emission power generation system

A gas-fired boiler and oxygen-enriched combustion technology, which is applied in the field of gas-fired boiler oxygen-enriched combustion for power generation and fuel oil, can solve problems such as recycling, increased operating costs, and waste of resources to achieve enhanced adaptability, improved boiler efficiency, and better business value effect

Inactive Publication Date: 2015-11-11
SICHUAN CHUANGUO BOILER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these measures for the emission of oil and gas combustion products are not well combined. They are all independently considered to remove th

Method used

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  • Fuel and gas-fired boiler oxygen-enriched combustion smoke nearly-zero-emission power generation system

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Example Embodiment

[0022] In order to make the present invention more comprehensible, a preferred embodiment is described in detail below in conjunction with the accompanying drawings.

[0023] figure 1 For example, the fuel and gas boiler oxy-fuel combustion flue gas near-zero emission power generation system. The fuel-fired and gas-fired boiler oxy-fuel combustion flue gas near-zero emission power generation system consists of a boiler (1), a wind box (2), an air separation device (3), Burner (4), flue gas preheater (5), low temperature heat exchanger (6), recirculation fan (8), induced draft fan (9), ultra-low temperature heat exchanger (10), condensation heat exchanger (11) ), dehydration device (12), SO2 separation device (13), CO2 capture device (14), N 2 It consists of separator (16), NOx reaction device (7) and chimney (15).

[0024] The air separation device (3) is connected to the wind box (2), and the separated oxygen is sent to the wind box (2) through the valve control, and the recircul...

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Abstract

The invention provides a fuel and gas-fired boiler oxygen-enriched combustion smoke nearly-zero-emission power generation system. The fuel and gas-fired boiler oxygen-enriched combustion smoke nearly-zero-emission power generation system is composed of a boiler, an air bellow, an air separation device, a burner, a multi-stage heat exchanger, a recirculating fan, an induced draft fan, a dehydration device, an SO2 separation device, a CO2 capturing device, a N2 separator, a NOx reaction device and the like. The concentration of oxygen of secondary air is changed so as to ensure that fuel and gas catch fire in time, burn stably and burn out, the boiler efficiency is improved, and adaptability of the boiler to loads is enhanced. By recycling water steam, SO2, NOx, CO2 and the like brought by burning smoke of fuel and gas, integrated desorption of harmful gas and trace elements in smoke is achieved; meanwhile, the temperature of exhausted smoke is reduced to approach the atmosphere temperature, nearly-zero emission of burning smoke is achieved, the environment is protected, and maximum utilization of resources is also achieved.

Description

technical field [0001] The invention relates to a fuel oil and gas boiler technology for a power station, in particular to a fuel oil and gas boiler oxygen-enriched combustion near-zero-emission power generation technology. Background technique [0002] With the development of human industry, the environment and climate change issues have become the concerns of the whole world. The flue gas produced by the combustion of oil and gas in the power station industry brings a large amount of sulfide, nitrogen oxides and a large amount of carbon dioxide. The combustion products produced by the combustion of oil and gas have a huge adverse impact on the environment and climate. However, the power station industry, which uses oil and gas as raw materials, occupies an important position in the use of oil and gas, and has also become a relatively concentrated source of carbon dioxide and other pollutant emissions, with a huge amount of emissions. Therefore, the control and treatment o...

Claims

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Application Information

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IPC IPC(8): F23C9/00F23J15/02
CPCY02E20/32Y02E20/34
Inventor 王红伟罗辉黄卫霞杨青兰杨晓宏张炜
Owner SICHUAN CHUANGUO BOILER
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