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Combustor, mining safe low-nitrogen combustion device and control method thereof

A burner and combustion head technology, which is applied in combustion methods, burners, gas fuel burners, etc., can solve problems such as easy tempering safety and so on.

Pending Publication Date: 2021-09-10
DALIAN EAST REFRIGERATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a burner, mine safety low-nitrogen combustion device and its control method, which solves the problems of easy tempering and low safety in the prior art of gas premixed combustion devices

Method used

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  • Combustor, mining safe low-nitrogen combustion device and control method thereof
  • Combustor, mining safe low-nitrogen combustion device and control method thereof
  • Combustor, mining safe low-nitrogen combustion device and control method thereof

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Embodiment 1

[0038] Such as figure 1 As shown, the burner 1 in this embodiment includes a body part 2 , inside the body part 2 is a body cavity 3 , and a gas inlet 4 is communicated with the body cavity 3 . In this embodiment, a flange 5 is provided outside the body part 2 .

[0039] The body part 2 is provided with a combustion head 6. In this embodiment, the combustion head 6 is a porous fiber combustion head 6, and a high temperature resistant material drilling combustion head 6 or a high temperature resistance material stacking porous combustion head 6 can also be used. . The inside of the combustion head 6 is a head cavity 7, and the head cavity 7 communicates with the body cavity 3; in this embodiment, the head cavity 7 and the body cavity 3 are both cylindrical cavities.

[0040]The inside of the head chamber 7 is provided with an isolating cylinder 8. In this embodiment, the isolating cylinder 8 is a cylindrical cylinder with both ends sealed. A gap cavity 9 is formed between th...

Embodiment 2

[0043] Such as figure 2 As shown, the structure of the burner 1 in this embodiment is similar to the first embodiment, the difference is that in this embodiment, the body cavity 3 and the head cavity 7 are separated by a partition plate 13, in order to facilitate processing, it can be Using the partition plate 13 and the flange 5 as an integral structure,

[0044] In addition, in this embodiment, the isolation cylinder 8 located in the head cavity 7 is provided with porous distribution anti-tempering small holes 14, and the isolation cylinder 8 located in the body cavity 3 is provided with gas inlet holes 15, which is equivalent to the The isolation cylinder 8 forms a gas distribution cylinder with a porous fire-stop structure.

[0045] When this embodiment is used, the combustible gas enters the body cavity 3 from the gas inlet 4, then enters the isolation cylinder 8 through the gas inlet hole 15, and then enters the gap cavity 9 after being distributed through the porous d...

Embodiment 3

[0047] Such as image 3 As shown, the mining safety low-nitrogen combustion device in this embodiment includes a heating furnace 16, which is a vertical heating furnace 16, and the heating furnace 16 is provided with a flue gas outlet 17; Have steam to get heat pipe 18.

[0048] The burner 1 in the first embodiment is used here, and of course, the burner 1 in the second embodiment can also be used as required. The burner 1 is arranged at the bottom of the heating furnace 16 and fixed with the heating furnace 16 through the flange 5 . The combustion head 6 is located inside the heating furnace 16, and an igniter 19 and a flame detector 20 are arranged on the side of the combustion head 6; in this embodiment, the igniter 19 is equipped with a permanent light.

[0049] The gas inlet 4 of the burner 1 is connected to the gas mixer 22 through the flame arrester 21 , and the inlet of the gas mixer 22 is respectively connected to a high-concentration gas inlet pipe 23 and a low-con...

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Abstract

The invention provides a combustor, and relates to the technical field of application of mining low-concentration gas. The combustor comprises a body portion, wherein a body cavity is formed in the body portion and communicates with a gas inlet; a combustion head is arranged on the body portion; a head cavity in the body portion communicates with the body cavity; an isolating barrel is arranged in the head cavity; a gap cavity is formed between the isolating barrel and the combustion head; and a temperature sensor is arranged in the gap cavity. The invention further discloses a mining safe low-nitrogen combustion device adopting the combustor and a control method. By the structure of the combustor, tempering can be avoided, by the mining safe low-nitrogen combustion device and the control method, the air-fuel ratio of a high-concentration gas and low-concentration gas premixed combustion process of a coal mine is adjusted accurately, the process is controlled safely, and the gas premixed combustion process of the coal mine is safe and stable. The combustor can be widely applied to combustion utilization of various high-concentration gas and low-concentration gas, particularly, safe combustion utilization of low-concentration gas of the coal mine, and efficient and safe low-nitrogen combustion of gas in an explosion limit and steam production are realized.

Description

technical field [0001] The invention relates to the technical field of mine low-concentration gas application, in particular to a burner, a mine safe low-nitrogen combustion device and a control method thereof. Background technique [0002] According to different mining processes and safety requirements, the gas associated with coal mining generally has high-concentration gas drainage and low-concentration gas drainage. High-concentration gas generally has a concentration of 12%-30%V, which can be used for power generation, combustion, heating, etc.; low-concentration gas generally has a concentration below 12%V, and is usually more common at a gas concentration of 3%-5%V. Part of the gas is usually discharged directly into the atmosphere, causing resource waste and environmental pollution. It is necessary to recycle this low-concentration gas to achieve resource recovery and carbon emission reduction. [0003] At present, the main utilization method of high and low concent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/02F23D14/12F23D14/46F22B31/00F23N1/02
CPCF23D14/02F23D14/12F23D14/46F22B31/00F23N1/02
Inventor 蔡振义林本军周立杰袁伟徐立峰
Owner DALIAN EAST REFRIGERATION EQUIP