Fuel-gas-catalyzed flameless near-infrared indirect heating porous medium burner

A technology of porous media and gas catalysis, which is applied in the direction of gas fuel burners, burners, combustion methods, etc., can solve the problems of uneven distribution of premixed gas, uneven distribution of heating temperature, high emission of combustion pollutants, and achieve surface temperature Stable, less exhaust, high heating efficiency

Inactive Publication Date: 2015-10-07
周海波
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the combustion of gaseous fuels in my country's industrial production is mainly space combustion characterized by free flames. The temperature gradient near the flame surface of this combustion method is steep and the temperature distribution is uneven. The existence of local high-temperature areas causes a large amount of NO X At the same time, there are still problems such as incomplete combustion, low thermal efficiency, poor combustion stability, and high emissions of combustion pollutants. The patent with the authorized public number CN101929676B discloses a catalytic porous media burner. It can effectively reduce the emission of combustion pollutants, but because the premixed gas directly enters the catalytic metal fiber felt and ceramic foam from the premixed chamber through the porous plate for combustion, the distribution of the premixed gas is still not uniform enough, so that the heating temperature distribution is not uniform enough. Its heating efficiency is still low

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
  • Fuel-gas-catalyzed flameless near-infrared indirect heating porous medium burner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A gas catalytic flameless near-infrared indirect heating porous media burner (see figure 1 ), including a burner body 8 and a refractory brick layer, the refractory brick layer is located in the burner body 8, and the refractory brick layer includes an outer refractory brick layer 7 and an inner refractory brick layer 4 arranged sequentially from outside to inside An insulation layer 5 is arranged between the outer refractory brick layer 7 and the inner refractory brick layer 4, the outer wall of the outer refractory brick layer 7 is closely matched with the inner wall of the burner body 8, and the outer refractory brick layer 7 is respectively provided with an air inlet channel 6 and an air outlet channel 22; the inner refractory brick layer 4 is sequentially provided with a premixed gas diffusion chamber 2, a perforated plate 21, a premixed gas pressure equalization chamber 20, a flame-resistant barrier plate 18, and a foam ceramic plate from the bottom to the top. , ...

Embodiment 2

[0064] A gas catalytic flameless near-infrared indirect heating porous media burner, the basic structure of the burner is the same as that of Embodiment 1, the difference is that the porosity of the large-pore ceramic foam plate 14 is 90%, and the pore diameter is 20PPI, the plate thickness is 50mm; the porosity of the small-hole foam ceramic plate 15 is 90%, the pore diameter is 65PPI, and the plate thickness is 50mm; holes, the hole spacing is 20mm; the plate thickness of the perforated plate 21 is 4mm, and the holes with a diameter of 3mm are evenly arranged on the perforated plate 21, and the hole spacing is 20mm; the plate thickness of the upper pressing plate 11 and the burner body 8 are 8mm.

Embodiment 3

[0066] A gas catalytic flameless near-infrared indirect heating porous media burner, the basic structure of the burner is the same as that of Embodiment 1, the difference is that the porosity of the large-pore ceramic foam plate 14 is 85%, and the pore diameter is 15PPI, the plate thickness is 30mm; the porosity of the small-hole foam ceramic plate 15 is 85%, the pore diameter is 60PPI, and the plate thickness is 20mm; mm holes, the hole spacing is 10mm; the plate thickness of the perforated plate 21 is 2mm, and the holes with a diameter of 2mm are evenly arranged on the perforated plate 21, and the hole spacing is 10mm; the plate thickness of the upper pressing plate 11 and the burner body 8 are uniform. is 5mm.

[0067] As a transformation of the above-mentioned embodiments one to three, the porosity of the macroporous ceramic foam plate 14 is 80-90%, the aperture is 10-20PPI, and the plate thickness is 10-50mm; the pores of the small-porous ceramic foam plate 15 The rate i...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a fuel-gas-catalyzed flameless near-infrared indirect heating porous medium burner, and relates to burners. The burner comprises a burner body, an inner refractory brick layer and an outer refractory brick layer; the outer refractory brick layer is internally provided with a gas inlet channel and a gas outlet channel, the inner refractory brick layer is internally provided with a pre-mixed gas diffusion chamber, a perforated plate, a pre-mixed gas voltage-sharing chamber, a flame-resistant protective screen plate and a foamed ceramic plate; the pre-mixed gas diffusion chamber is communicated with a pre-mixed gas supply pipe, and the outer refractory brick layer arranged on the foamed ceramic plate is provided with high-temperature-resistant infrared silica glass which blocks a burning opening; an upper compressing plate is arranged above the high-temperature-resistant infrared silica glass, a lower compressing plate is arranged on the lower end face of the burner body, and the upper compressing plate is connected with the lower compressing plate through a fastening piece. According to the fuel-gas-catalyzed flameless near-infrared indirect heating porous medium burner, during burning, smoke and flames are not generated, the heating efficiency is high, heating is even, the emission of NOX can be reduced, the burner can be used for an annealing technology where burner atmosphere needs to be ensured, and during the burning, the radiation intensity is high; the fuel-gas-catalyzed flameless near-infrared indirect heating porous medium burner has the advantages that the installation is convenient, the service life is long, the energy is saved, the environment is protected, and the application range is wide; the burner is easy to use and popularize.

Description

technical field [0001] The invention relates to a burner, in particular to a gas catalytic flameless near-infrared indirect heating porous medium burner. Background technique [0002] At present, the combustion of gaseous fuels in my country's industrial production is mainly space combustion characterized by free flames. The temperature gradient near the flame surface of this combustion method is steep and the temperature distribution is uneven. The existence of local high-temperature areas causes a large amount of NO X At the same time, there are still problems such as incomplete combustion, low thermal efficiency, poor combustion stability, and high emissions of combustion pollutants. The patent with the authorized public number CN101929676B discloses a catalytic porous media burner. It can effectively reduce the emission of combustion pollutants, but because the premixed gas directly enters the catalytic metal fiber felt and ceramic foam from the premixed chamber through ...

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): F23D14/18F23D14/46
CPCF23D14/18F23D14/46
Inventor 周海波
Owner 周海波
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