Metal fiber and porous ceramic media surface burner

A metal fiber, medium surface technology, applied in burners, gas fuel burners, combustion methods, etc., to achieve the effect of increasing the adjustment range, increasing the combustion temperature, and improving the thermal efficiency

Inactive Publication Date: 2007-07-11
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems existing in the existing metal fiber surface burner, the present invention provides a metal fiber-porous ceramic medium surface burner

Method used

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  • Metal fiber and porous ceramic media surface burner
  • Metal fiber and porous ceramic media surface burner

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Embodiment Construction

[0026] As shown in Figure 1 and Figure 2, the main body of the burner is composed of: 1 metal fiber medium in the combustion zone, 2 ceramic medium in the preheating zone, 3 burner shell, 4 dust removal metal mesh or metal brush, 5 gas pipeline, 6 premixing In the cavity formed by the burner shell 3, the metal fiber medium 1 in the combustion zone, the ceramic medium 2 in the preheating zone, and the materials for the metal fiber medium 1 in the combustion zone are arranged in sequence from top to bottom. Iron-chromium-aluminum alloy can be used, and the ceramic medium 2 in the preheating zone is made of zirconia or silicon carbide. The top of the metal fiber 1 in the combustion zone is flush with the top of the burner shell 3, and the metal fiber medium 1 in the combustion zone and the ceramic medium 2 in the preheating zone can be integrated. Inside the cavity formed by the burner casing 3, dust removal metal mesh or metal brush 4 is set under the ceramic medium 2 in the pre...

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PUM

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Abstract

The invention relates to a metallic fiber and multi-hole ceramic dielectricsurface burner, belonging to heat energy engineering technology area. The burner comprises burner shell, gas pipeline and air pipeline. In the empty cavity constituted by the burner shell, metallic fiber medium in combustion zone and ceramic medium in preheat zone are set from upper to lower in turn and two medium are tightened together. The material of metallic fiber medium in combustion zone is made of Fe-Cr-Al alloy and the material of ceramic medium in preheat zone is made of zirconia or silicon carbide. Compared with ordinary surface burner, the invention can prevent tempering effectively, improve the adjustable range of fuel and air and improve burning temperature in certain range so as to improve thermal efficiency. The burner in invention can burn natural gas, liquefied petroleum gas and mixed gas so on, also burn air fuel with low thermal value which is approached to 1000kcal / m3.

Description

technical field [0001] The invention belongs to the technical field of thermal energy engineering, relates to a burner for production and living, in particular to a metal fiber-porous ceramic medium surface burner. Background technique [0002] At present, by-product gas with calorific value less than 1000 kcal in industrial production, such as blast furnace gas, in which CO, H 2 , C n h m The content of combustible components is low, and the combustion efficiency in the burner is not high, resulting in a large amount of low calorific value gas discharge, which wastes energy and pollutes the environment. As early as 1979, some scholars proposed the idea of ​​adding porous media to the burner. Afterwards, many related experimental works also found that premixed combustion in porous media has many advantages: larger lean burn limit, higher combustion rate And stability, wide range of load adjustment, high combustion intensity, small burner volume, etc., and the content of p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/02F23D14/68F23D14/82
Inventor 李本文刘慧董帅陈海耿饶文涛
Owner NORTHEASTERN UNIV
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