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Gas burner combustion injection device with dispersed free flame and low NOx

A technology of gas burner and injection device, applied in the directions of gas fuel burner, burner, combustion method, etc., can solve the problem of high local temperature of flame, and achieve the effects of increasing heat dissipation area, high combustion efficiency and improving safety.

Pending Publication Date: 2019-11-12
SHANGHAI LINGYUN RUISHENG COMBUSTION EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the common combustion method, the flame is relatively concentrated, and the local temperature of the flame is high, which is easy to produce NO X

Method used

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  • Gas burner combustion injection device with dispersed free flame and low NOx
  • Gas burner combustion injection device with dispersed free flame and low NOx
  • Gas burner combustion injection device with dispersed free flame and low NOx

Examples

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Embodiment 1

[0038] see Figure 1 to Figure 5 , a combustion injection device for a diffused free flame low NOx gas burner of the present invention, comprising a flame tube 2, an interface air pipe 11, an air intake pipe assembly 3 supplied by the interface air pipe, a fuel injection pipe, and two ignition needles 9; A number of fire outlets are arranged on the outlet end surface of the cylinder 2, and a blind section 23 is formed on the outlet end surface of the flame cylinder 2 outside the fire outlets, which is characterized in that:

[0039] It also includes rotating flange and primary air cylinder assembly;

[0040] Several fire outlets of the flame tube 2 are arranged in a petal shape, and the petal-shaped fire outlets include a central fire outlet 21, several outer ring fire outlets 22 evenly distributed on the periphery of the central fire outlet 21; The fire outlet 21, the outer ring fire outlet 22 and the blind section 23 form a petal shape, and the alternate arrangement of the ...

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Abstract

The invention relates to the technical field of combustion injection devices, in particular to a gas burner combustion injection device with dispersed free flame and low NOx. The combustion injectiondevice comprises a flame tube, a connector gas tube, a gas inlet tube assembly, a fuel gas injection tube and two spark electrodes, wherein gas of the gas inlet tube assembly is supplied by the connector gas tube, a plurality of fire outlets are arranged on the outlet end face of the flame tube, and a blind section is formed on the position, outside the fire outlets, of the outlet end face of theflame tube; and the combustion injection device is characterized by further comprising a rotary flange and a primary air duct assembly, wherein the primary air duct assembly fixedly sleeves the horizontal tube section of the gas inlet tube assembly, and the primary air duct assembly comprises an air duct and a plurality of fan blades uniformly distributed on a hub. Compared with the prior art, thecombustion injection device has the advantages that the flame is in a dispersed and free state, so that the energy generated through combustion is more uniformly distributed in a combustion chamber,and generation and emission of pollution gases such as CO and NOx are reduced.

Description

technical field [0001] The invention relates to the technical field of combustion injection devices, in particular to a combustion injection device for a diffused free flame low NOx gas burner. Background technique [0002] As the country pays more and more attention to environmental protection, the requirements for industrial boiler exhaust emissions are becoming increasingly stringent. The new standard greatly reduces the NO X emission content. As a heat conversion device for fossil fuels, the burner is bound to undertake the low NO X The burden of emissions. [0003] Taking Beijing as an example, before 2015, the exhaust emission requirements for industrial boilers should be NO X ≤150mg / m 3 , and in 2017, for NO X Emission requirements are upgraded to: Retrofit boiler NO X ≤80mg / m 3 , new boiler NO X ≤30mg / m 3 . With the gradual deepening of Beijing's gas boiler burner transformation pilot, it is believed that new environmental protection requirements will be p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/64F23D14/46
CPCF23D14/64F23D14/46Y02E20/34
Inventor 陈关海谭康平郝铸平林勇杨高战
Owner SHANGHAI LINGYUN RUISHENG COMBUSTION EQUIP CO LTD
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