Bottom-mounted type NOx discharging circular flame gas burner

A gas burner and bottom-mounted technology, applied in the directions of gas fuel burners, burners, combustion methods, etc., can solve the problems of flame licking the furnace tube, secondary combustion of heating furnace hearth, fluttering, etc., to suppress NOx generation, realize Effects of NOx emission and low NOx emission

Inactive Publication Date: 2015-05-13
HUNAN JIXIANG PETROCHEM SCI & TECH
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Various burners have developed a variety of structures around the control of NOx emissions, and technologies such as fuel staged combustion, rich-lean combustion, fuel reburning, and flue gas recirculation have been continuously applied. However, subject to the structural characteristics of the heating furnace, the combustion The structural space of the device is limited, and it is impossible to apply multiple measures at the

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
  • Bottom-mounted type NOx discharging circular flame gas burner
  • Bottom-mounted type NOx discharging circular flame gas burner
  • Bottom-mounted type NOx discharging circular flame gas burner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The combustion air of the present invention realizes graded supply, that is, constitutes a swirl primary air channel and a direct jet secondary air channel; gas realizes three-stage supply, that is, the first fuel injection port corresponding to the gas through hole of the outer brazier brick, and the upper part of the outer wall of the outer brazier brick. The second fuel injection port, and the third fuel injection port above the corresponding inner brazier brick. At the same time, the mouth of the inner brazier brick is higher than the outer brazier brick, forming a certain height difference, which provides support for the realization of multi-stage and multi-flow field combustion. In the annular air passage between the inner brazier brick and the outer brazier brick for combustion-supporting air and combustion fuel, the primary wind forms a swirling flow, and realizes oxygen-poor and over-rich combustion in the annular air passage; further oxygen-poor oxygen is reali...

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 relates to a bottom-mounted type NOx discharging circular flame gas burner which comprises a cylinder part, a combustion air butterfly valve pipeline, a brazier brick part, an incandescent light and a gas supply system. The brazier brick part comprises an inner brazier brick and an outer brazier brick. An annular air channel is arranged between the two brazier bricks. Air channels are arranged at the center of the inner brazier brick. The combustion air butterfly valve pipeline is communicated with the inner portion of the cylinder part. Combustion air is guided into the annular air channel and the center air channels for burning respectively. The gas supply system comprises a plurality of gas nozzles. Each gas nozzle is provided with a first fuel spraying opening, a second fuel spraying opening and a third fuel spraying opening. Combustion air entering the air channels and fuel sprayed out by the gas nozzles are mixed to form oxygen deficient overrich burning, oxygen deficient overrich re-burning, oxygen enrichment over-diluted burning and smoke re-burning. Air staging feeding, gas three-level feeding and mixed multilevel burning are achieved, NOx generating is effectively restrained, and low NOx emission is achieved.

Description

technical field [0001] The invention relates to a petrochemical heating furnace burner device, in particular to a bottom-mounted low-NOx emission circular flame gas burner meeting the requirements of bottom-fired, circular flame, and gas fuel. Background technique [0002] In order to cope with the ever-increasing emission requirements and urgent situation of national environmental protection, most of the low NOx emission combustion technologies for domestic petrochemical heating furnace burners can only guarantee about 50PPM NOx emission. Various burners have developed a variety of structures around the control of NOx emissions, and technologies such as fuel staged combustion, rich-lean combustion, fuel reburning, and flue gas recirculation have been continuously applied. However, subject to the structural characteristics of the heating furnace, the combustion Due to the limited structural space of the device, it is impossible to apply multiple measures at the same time to...

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
IPC IPC(8): F23D14/24F23D14/46
CPCF23D14/24F23D14/46F23D2203/007Y02E20/34
Inventor 邹吉罗映波
Owner HUNAN JIXIANG PETROCHEM SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap