Unlock instant, AI-driven research and patent intelligence for your innovation.

Low-NOx burner adopting air premixing

A low-nitrogen oxide, air premixing technology, applied in gas fuel burners, burners, combustion methods, etc., can solve the problem of unreasonable structural design of the burner head, high nitrogen oxide content in flue gas, and gas air. The problem of uneven mixing can achieve the effect of uniform gas and air mixing, full combustion and simple structure

Inactive Publication Date: 2016-04-13
大庆市斯麦森科技有限公司
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the number of industrial boilers used is large, and the existing industrial boiler burners have certain disadvantages, which are mainly reflected in: first, the nitrogen oxide content in the exhausted flue gas is relatively large, which aggravates environmental pollution; second, the burners Gas and air are mixed for one-time combustion, uneven gas-air mixing, insufficient combustion, and low combustion efficiency; third, the unreasonable design of the existing burner head structure is also one of the reasons for insufficient combustion

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-NOx burner adopting air premixing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The air premixed low nitrogen oxide burner of the present invention is composed of a casing 1, a mixing cone 2 and a fire cage 3, the mixing cone 2 is placed in the inner cavity of the casing 1, and the axes of the mixing cone 2 and the casing 1 are on the same line Straight line, the lower opening of the shell 1 is fixedly connected to the cage fire tube 3 by more than two screw rods 4, and the lower edge of the mixing cone 2 in the cage fire tube 3 is fixedly connected to the upper end of the isolation tube 5 along the circumference.

Embodiment 2

[0015] The air premixed low nitrogen oxide burner of the present invention is composed of a casing 1, a mixing cone 2 and a fire cage 3, the mixing cone 2 is placed in the inner cavity of the casing 1, and the axes of the mixing cone 2 and the casing 1 are on the same line Straight line, the lower opening of the shell 1 is fixedly connected to the cage fire tube 3 by more than two screw rods 4, and the lower edge of the mixing cone 2 in the cage fire tube 3 is fixedly connected to the upper end of the isolation tube 5. The cone of the mixing cone 2 Through holes 6 are evenly distributed on the body, and the outer diameters of the mixing cone 2 and the isolation tube 5 are all less than the inner diameter of the cage fire tube 3, and the wall gap between the isolation tube 5 and the cage fire tube 3 forms a secondary air passage 7.

Embodiment 3

[0017] The air premixed low nitrogen oxide burner of the present invention is composed of a casing 1, a mixing cone 2 and a fire cage 3, the mixing cone 2 is placed in the inner cavity of the casing 1, and the axes of the mixing cone 2 and the casing 1 are on the same line Straight line, the lower opening of the shell 1 is fixedly connected to the cage fire tube 3 by more than two screw rods 4, and the lower edge of the mixing cone 2 in the cage fire tube 3 is fixedly connected to the upper end of the isolation tube 5. The cone of the mixing cone 2 Through holes 6 are evenly distributed on the body, and the outer diameters of the mixing cone 2 and the isolation tube 5 are all less than the inner diameter of the cage fire tube 3, and the wall gap between the isolation tube 5 and the cage fire tube 3 forms a secondary air passage 7. A sealing gasket 8 is arranged between the shell 1 and the cage fire tube 3, the outer diameter of the isolation tube 5 is the same as that of the mi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a low-NOx burner adopting air premixing and relates to a natural gas burner technology. The low-NOx burner comprises a casing, a mixing cone and a fire making barrel, wherein the mixing cone is arranged in an inner chamber of the casing and shares the same axis with the casing, the lower end of the casing is open and is fixedly connected with the fire making barrel through more than two screws, and the lower edge circumference of the mixing cone in the fire making barrel is fixedly connected with the upper end of an isolating barrel. The low-NOx burner adopting air premixing is simple in structure and reasonable in design, the isolating barrel is added to the conventional burner, and a flame burns completely by means of primary premixed burning in the isolating barrel and secondary premixed burning out of the isolating barrel. Gas and air are uniformly mixed and sufficiently burnt, the burning efficiency is high, the temperature of a high-temperature point is reduced, emission of NOx is reduced, the environment is protected, and the low-NOx burner shows a new direction for the natural gas burning technology.

Description

technical field [0001] The invention relates to natural gas burner technology, in particular to an air premixed low nitrogen oxide burner. Background technique [0002] With the development of industry, environmental pollution continues to intensify, and the environmental protection departments of various countries in the world have strict requirements on the emission standards of industrial boilers. At present, the number of industrial boilers used is large, and the existing industrial boiler burners have certain disadvantages, which are mainly reflected in: first, the nitrogen oxide content in the exhausted flue gas is relatively large, which aggravates environmental pollution; second, the burners Gas and air are mixed for one-time combustion, uneven gas-air mixing, insufficient combustion, and low combustion efficiency; third, the unreasonable design of the existing burner head structure is also one of the reasons for insufficient combustion. Contents of the invention ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/02F23D14/62
CPCF23D14/02F23D14/62
Inventor 孟颖哲孙隆浩李晓丰王贺唐超
Owner 大庆市斯麦森科技有限公司