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Gas fuel porous medium surface combustor

A porous medium, surface combustion technology, applied in the direction of gas fuel burners, burners, combustion methods, etc., can solve the problems of unstable gas fuel combustion, small power adjustment range, low pollutant emissions, etc., to overcome easy tempering. , The effect of stable combustion and high combustion temperature

Inactive Publication Date: 2012-05-09
SHENYANG INST OF ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims at the problems existing in the above-mentioned prior art, and provides a gas fuel porous medium surface burner, which solves the problems of unstable gas fuel combustion, small power adjustment range, and easy tempering in the prior art, and the present invention low pollutant emissions

Method used

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Embodiment

[0017] The casing structure is adopted, including porous area I and porous area II. The porous area I and the porous area II are respectively provided with a sphere I3 and a sphere II5. The diameter of the sphere II5 is larger than that of the sphere I3. The fuel gas 2 is supplied by a gas storage tank or a fuel pipe. Supply, air 1 is supplied by a compressor, gas and air nozzles are both steel pipes and arranged coaxially. The gas nozzle is an inner ring, and the air nozzle is an outer ring, and is connected to the burner shell through a pipe, the inner ring and the outer ring A sphere II5 is set in between to balance the air flow, and a sphere I3 is set above the gas nozzle to enhance the performance of fuel and air mixing. By adjusting the arrangement of the sphere, the flame main body is on the surface of the burner, and part of the flame is stabilized in the porous medium. The high temperature resistant steel wire mesh 4 is placed above the fuel nozzle.

[0018] The inventi...

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Abstract

The invention relates to a gas fuel porous medium surface combustor suitable for gas fuels. The combustor is of an extension-type structure, and a gas nozzle and an air nozzle are coaxially arranged; a combustor body comprises a porous region I and a porous region II; and the porous region I and the porous region II are respectively provided with a sphere I and a sphere II. According to the invention, gas and air are diffused and mixed in a porous medium, thus the combustor has the advantage of adjustable diffusion degree; combustion is stable, and simultaneously the defects of high tempering possibility in premixed combustion as well as long flames and low combustion intensity in diffusion combustion are overcome; and furthermore, partial flames are stayed in the porous spheres, thus the combustor has an effect of preheating the air and gas, is high in combustion temperature and low in CO emission and simultaneously can be used for combusting gases with lower heat value.

Description

technical field [0001] The invention relates to a burner, in particular to a gas fuel porous medium surface burner suitable for gas fuel, and belongs to the technical field of combustion equipment. Background technique [0002] The combustion of the premixed gas in the porous medium is easy to temper, and even the flame blows out of the tube, causing explosion and other dangers. Gas fuel diffusion combustion equipment does not temper, and is widely used in industry, but it has the disadvantages of long combustion flame and low combustion intensity. [0003] Aiming at these defects of the porous media burner, some improvements have been made to the gas fuel porous media burner. Publication No. 101135441 "A Mine Ventilation Gas Combustion and Heat Energy Utilization Device" can burn gas with low calorific value. The announcement number is 100389286 "Powdered Coal Ignition Burner Using Porous Media to Realize Ignition with Minimal Oil", which is mainly used for reliable igni...

Claims

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Application Information

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IPC IPC(8): F23D14/14F23D14/02F23D14/46
CPCY02E20/34
Inventor 徐有宁史俊瑞薛治家黄新章王树群马金凤
Owner SHENYANG INST OF ENG
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