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A non-premixed hydrogen catalytic combustion heating device

A technology of catalytic combustion and heating device, applied in burner safety device, gas fuel burner, burner, etc., can solve problems such as hidden safety hazards, no anti-backfire design, etc., to ensure safety, compact structure and convenience Modular effects used in series or in parallel

Active Publication Date: 2021-04-02
武汉氢能与燃料电池产业技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent 201410205980.9 proposes a hydrogen catalytic burner, hydrogen and air are mixed and reacted sequentially through multiple catalyst layers, but there is no anti-tempering design, which has potential safety hazards

Method used

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  • A non-premixed hydrogen catalytic combustion heating device
  • A non-premixed hydrogen catalytic combustion heating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028]The size of the catalytic combustion chamber 5 is 100×12×60mm, the size of the air intake chamber 5a is 100×5×60mm, the uniformly distributed holes 5b have a diameter of 2mm and are uniformly arranged in 12×8; the size of the heat exchange chamber 4 is 100×8×60mm, Both the catalytic combustion chamber 5 and the heat exchange chamber 4 are made of copper-nickel alloy. The cross section of the corrugated alloy strip in the corrugated plate fire-stop core 2 is isosceles triangle, the obtuse angle of the triangle is 120°, the height is 0.2mm, and the thickness is 0.1mm; the flat alloy strip is rectangular, the thickness is 0.15mm, and the material is copper-silver-zirconium alloy. Nickel foam 7 has a size of 96×10×10mm and a pore density of 40PPI. The catalyst is selected from γ-Al 2 o 3 -Carbon nanotube (CNT) supported Pt granular catalyst.

[0029] Hydrogen and air are passed into the catalytic combustion chamber 5 respectively, the hydrogen is controlled to account for...

Embodiment 2

[0031] The size of the catalytic combustion chamber 5 is 100×8×60mm, the size of the air intake chamber 5a is 100×5×60mm, the uniformly distributed holes 5b have a diameter of 1mm and are uniformly arranged at 15×10; the size of the heat exchange chamber 4 is 100×15×60mm, Both the catalytic combustion chamber 5 and the heat exchange chamber 4 are made of copper alloy. The cross section of the corrugated alloy strip in the corrugated fire retardant core is isosceles triangle, the obtuse angle of the triangle is 120°, the height is 0.2mm, and the thickness is 0.1mm; the flat alloy strip is rectangular, the thickness is 0.15mm, and the material is copper-silver-zirconium alloy. The size of nickel foam 7 is 96×6×10mm, and the pore density is 40PPI. Catalyst selection Al 2 o 3 Make a transition layer, and then chemically deposit the wall-supported catalyst of the Pt active layer.

[0032] Hydrogen and air are respectively passed into the catalytic combustion chamber 5, and the h...

Embodiment 3

[0034] The size of the catalytic combustion chamber 5 is 150×20×100mm, the size of the air intake chamber 5a is 150×8×100mm, the uniformly distributed holes 5b have a diameter of 2mm and are uniformly arranged in 12×8; the size of the heat exchange chamber 4 is 150×8×100mm, Both the catalytic combustion chamber 5 and the heat exchange chamber 4 are made of copper alloy. The cross section of the corrugated alloy strip in the corrugated fire retardant core is isosceles triangle, the obtuse angle of the triangle is 120°, the height is 0.2mm, and the thickness is 0.1mm; the flat alloy strip is rectangular, the thickness is 0.15mm, and the material is copper-silver-zirconium alloy. Nickel foam 7 has a size of 146×18×10mm and a pore density of 40PPI. The catalyst is selected from γ-Al 2 o 3 -Carbon nanotube (CNT) supported Pt granular catalyst, hydrogen-air catalytic combustion space velocity 10000h -1 .

[0035] Hydrogen and air are passed into the catalytic combustion chamber ...

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Abstract

The invention discloses a non-premixed hydrogen catalytic combustion heat supply device. The device comprises a hydrogen gas inlet cover plate, a corrugated plate flame retardant core, a catalytic combustion chamber, heat exchange chambers, an upper cooling medium flow passage chamber, a lower cooling medium flow passage chamber and a tail gas cover plate; hydrogen and air contact directly on thesurface of a catalyst in the combustion chamber to be subjected to a catalytic combustion reaction, and generated heat is transmitted to the heat exchange chambers on two sides by partition plates andfins to heat the cooling medium. Hydrogen and air are subjected to catalytic combustion to supply heat, so that emission is pollution-free; hydrogen and air need not to be premixed in advance, explosion possibly occurring in a hydrogen-air mixing chamber in the conventional hydrogen catalytic combustion reactor is prevented, and safety of the device is improved; the device has high heat exchangeefficiency and compact structure, can be modular used in series or parallel conveniently, can be used as a heat supply device for households, offices and industrial production, and can also be used asa hydrogen elimination device for fuel cell tail gas or a device for eliminating hydrogen escaping during liquid hydrogen storage.

Description

technical field [0001] The invention belongs to the technical field of hydrogen catalytic combustion, and in particular relates to a hydrogen catalytic combustion heat supply device without premixing. Background technique [0002] With the rapid development of human society, the demand for energy is increasing day by day. Excessive reliance on traditional fossil energy has caused serious environmental pollution and reduced the quality of human life. The product of complete combustion of hydrogen is only water, which is clean, efficient and sustainable, and is regarded as the most promising new energy source in the 21st century. [0003] In the presence of noble metal catalysts such as palladium and platinum, hydrogen can achieve flameless catalytic combustion with air at low temperature, which has the advantages of controllable combustion temperature, high combustion efficiency, and no nitrogen oxide emissions. As a heating device, the hydrogen catalytic burner can be used ...

Claims

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Application Information

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IPC IPC(8): F28D9/02F23D14/22F23D14/82F23D14/46
CPCF23D14/22F23D14/46F23D14/82F23D2209/10
Inventor 张浩程臣吴骁莫俊林王泽渊
Owner 武汉氢能与燃料电池产业技术研究院有限公司
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