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Fire-retardant low concentration gas burner

A low-concentration gas and burner technology, applied in the direction of burners, gas fuel burners, combustion methods, etc., can solve the problems of atmospheric environmental pollution, high probability of tempering, etc., achieve reduced NOx emissions, fast cooling speed, heat inert little effect

Active Publication Date: 2012-08-01
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for low-concentration gas that is too low in delivery pressure and mixed with air, there is a high probability of flashback during combustion, which poses a great safety hazard, so they are all directly emptied, causing great pollution to the atmospheric environment

Method used

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  • Fire-retardant low concentration gas burner
  • Fire-retardant low concentration gas burner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] As shown in the figure, the flame-retardant low-concentration gas burner of the present invention includes a combustion cylinder 1, which includes a cylinder body 9 with a multi-layer structure and an upper end that is respectively arranged on the cylinder body and the lower end surface and is closely connected with the cylinder body. The cover 11, the lower end cover 12, and the cylinder body 9 are the support layer 2, the fire resistance layer 3, the diverter plate layer 4 and the combustion layer 5 in sequence from the inside to the outside. In this embodiment, the upper end cover 11 adopts a single-layer structure made of high temperature resistant metal material.

[0032] Wherein, the support layer 2 can adopt a fence-like structure made of a high-temperature-resistant metal material, and its function is to support the metal fibers of the fire-resistant layer. In this embodiment, the support layer is made of a fence-like structure made of a high-temperature-resistan...

Embodiment 2

[0041] The difference between this embodiment and Embodiment 1 is that the upper end cover 11 is a multi-layer structure, which is a support layer, a fire retardant layer, a diverter plate layer and a combustion layer from bottom to top. The support layer, fire retardant layer of the upper end cover Layer, diverter plate layer and combustion layer have the same material and structure as the support layer 2, fire retardant layer 3, diverter plate layer 4 and combustion layer 5 of the barrel respectively, and are correspondingly manufactured as one. That is to say, in this embodiment, the supporting layer 2, the fire-blocking layer 3, the diverter plate layer 4 and the combustion layer 5 of the cylinder body adopt a structure similar to one layer wrapping one layer on the upper side and the side surface, which can increase the combustion area of ​​the combustion layer , which is conducive to improving the combustion efficiency of gas.

[0042] The flame-retardant low-concentrati...

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Abstract

The invention discloses a fire-retardant low concentration gas burner, which comprises a combustor. The combustor comprises a combustor body with a multi-layer structure, and an upper end cover and a lower end cover which are arranged on the upper end and lower end of the combustor body respectively and are closely connected with the combustor body. The combustor body has a supporting layer, a fire-retardant layer, a diversion plate layer and a burning layer from inside to outside in turn. The supporting layer is used for supporting the fire-retardant layer; the fire-retardant layer and the burning layer are made of multi-layer metal fabric or metal fiber sintered felt; the diversion plate layer is provided with a plurality of uniformly distributed diversion channels for communicating thefire-retardant layer and the burning layer, and the diversion plate layer also plays a role in supporting the whole combustor; the burner further comprises a gas inlet pipeline and an ignition device. In the invention, a combustor structure with multi-layer structure is adopted, wherein the fire-retardant layer and the burning layer are made of metal fibers, thereby ensuring a better tempering effect, a higher cooling speed and higher safety of burning of low concentration gas.

Description

technical field [0001] The invention relates to the field of coal mine safety, in particular to a flame-retardant gas burner for safely burning low-concentration gas. Background technique [0002] At present, the gas extracted from most mines is transported by pipeline, and the output end of the pipeline is connected to the user. Since most of the gas concentration extracted is lower than 30%, the gas in the pipeline is easy to burn and explode in case of fire, that is, there is a certain safety hazard. . [0003] The extracted high-concentration gas usually needs to be utilized, and those that cannot be utilized must be incinerated with a burner, and direct discharge is prohibited to avoid polluting the atmospheric environment. However, for low-concentration gas with low delivery pressure and mixed with air, there is a high probability of flashback during combustion, which poses a great safety hazard, so they are all directly emptied, causing great pollution to the atmosph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23D14/00F23D14/82
Inventor 龙伍见霍春秀逄锦伦林雪峰康建东李磊兰波高鹏飞
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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