Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Reducing ring rib water-cooling type surface combustion gas appliance

A surface combustion and gas device technology, applied in the direction of burner ignition device, burner, burner, etc., can solve the problems of poor low-nitrogen combustion effect, high cost, complex structure, etc.

Active Publication Date: 2021-09-24
XI AN JIAOTONG UNIV
View PDF18 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the low-nitrogen combustion technologies of gas-fired boilers mainly include staged combustion, lean-burn premixing, flue gas recirculation, flameless combustion MILD, and swirling combustion. However, most low-nitrogen combustion technologies have high cost, complex structure or low-nitrogen combustion. Therefore, a gas device with high combustion efficiency, simple structure and good low-nitrogen combustion effect needs to be developed urgently

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
  • Reducing ring rib water-cooling type surface combustion gas appliance
  • Reducing ring rib water-cooling type surface combustion gas appliance
  • Reducing ring rib water-cooling type surface combustion gas appliance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] Such as Figure 1-Figure 3 As shown: the water-cooled surface combustion gas device with ring ribs of different diameters, its main structure is that the mixed gas enters through the "ladder" shaped mixed gas inlet formed by multiple groups of ring ribs 2 of different diameters in the air intake cylinder 1, and then enters The gas cylinder 1 is installed outside the ring rib with the largest diameter; the first-stage ring cooling water pipe 4 and the second-stage ring cooling water pipe 3 are connected to multiple sets of different-diameter ring ribs 2 by welding to form a ribbed cooling system. Water pipes, the multiple groups of ring ribs 2 with different diameters are arranged at an angle of θ with the axis of the burner; the first-stage ring cooling water pipes 4 are arranged obliquely at equal intervals along the circumferential direction, and the...

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 reducing ring rib water-cooling type surface combustion gas appliance. The gas appliance comprises reducing ring ribs, first-stage annular cooling water pipes and second-stage annular cooling water pipes, wherein the first-stage annular cooling water pipes and the second-stage annular cooling water pipes are arranged on the reducing ring ribs; a gas inlet cylinder is arranged on the outer side of the ring rib with the maximum diameter of the reducing ring ribs; an ignition gun hole / central secondary air pipeline is arranged on the inner side of the ring rib with the minimum diameter of the reducing ring ribs; a certain angle theta is formed between the multiple groups of reducing ring ribs and the axis of a combustor, so that a stepped gas inlet surface is formed, and isobaric gas inlet is formed; and the flow area of anti-backfire gas inlet micro-channels formed by the reducing ring ribs and the annular cooling water pipes is gradually reduced in the gas inlet direction, and in addition, an outlet forms a continuous stepped combustion plane. According to the gas appliance, isobaric gas inlet, uniform low-temperature low-NOx surface combustion of gas can be realized, meanwhile, backfire can be effectively prevented, and stable, efficient, clean and safe combustion of gas fuel is ensured; and meanwhile, the structure is simple, manufacturing is convenient, and the gas appliance is suitable for batch production.

Description

technical field [0001] The invention relates to the technical field of burners, in particular to a water-cooled surface combustion gas device with different diameter ring ribs. Background technique [0002] Although coal resources are still the main source of energy consumption in my country, a large amount of environmental pollutants such as nitrogen oxides and dust will be produced during the combustion of coal, and various post-processing technologies have also brought extremely high economic costs. In contrast, natural gas, as a clean energy, has the advantages of high combustion efficiency, low cost of pollutant control and less pollutant emission, which is more in line with the development requirements of "low-carbon economy". However, natural gas will still produce some air pollutants such as nitrogen oxides during the combustion process. According to their sources, they are mainly divided into thermal type, fast type and fuel type. The generation of fuel type and fas...

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): F23D14/02F23D14/46F23D14/70F23D14/78F23L9/00
CPCF23D14/02F23D14/46F23D14/78F23D14/70F23L9/00F23D2207/00
Inventor 牛艳青薛旭峰商逸民
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products