Pre-mixing micro-catalysis combustion chamber with low heat loss

A micro-catalytic combustion chamber and pre-mixing technology, applied in the directions of burners, combustion methods, combustion types, etc., can solve the problems of reduced residence time of pre-mixed gas, increased combustion instability, and increased difficulty of complete reaction. The effect of photoelectric conversion efficiency, prolongation of residence time, and simple structure

Inactive Publication Date: 2014-04-09
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Micro power system (Power MEMS) is a new research field of micro electromechanical system (MEMS) developed in recent years; micro power system uses hydrogen or hydrocarbons as fuel, and is characterized in that it is less than 1cm 3 The volume can output 1-20w power; the energy density of hydrogen and hydrocarbons is more than 100 times that of traditional batteries, so the micro power system using hydrogen and hydrocarbons as fuel has a huge advantage over traditional batteries; Several micro-power systems with different concepts have appeared; such as micro gas turbine gas turbine, micro propulsion system, etc.; however, due to the miniaturization of size and the existe

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  • Pre-mixing micro-catalysis combustion chamber with low heat loss
  • Pre-mixing micro-catalysis combustion chamber with low heat loss

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Embodiment Construction

[0012] Such as figure 1 , the internal size of the combustion chamber is 10mm×10mm×1mm, the thickness of the outer wall 3 is 0.2mm, the micro-burner is made of polycrystalline alumina material, the front end of the partition is 1mm away from the air inlet, the partition divides the burner into two, close to the inlet The side of the gas port is the preheating zone 4, the side close to the exhaust port is the combustion zone 6, and the diameters of the exhaust port 1 and the intake port 2 are both 0.5 mm; figure 2 , the separator 5 is made up of three copper sheets 11 of 2.4mm×2mm×1mm, three platinum sheets 13 of 0.1mm×2mm×1mm and two porous copper sheets 12 of 2.5mm×2mm×1mm, wherein the platinum sheets 13 Adhere to the back of the copper sheet 11 (the side of the platinum sheet close to the combustion zone), and then arrange it with the porous copper sheet 12 at intervals, wherein the porous copper sheet 12 is not in contact with the wall of the combustion chamber, and the th...

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Abstract

The invention relates to a micro power system, in particular to a pre-mixing micro-catalysis combustion chamber with low heat loss. A clapboard which is excellent in heat-conducting performance is placed in the micro combustion chamber; the combustion chamber is partitioned into a preheating region and a combustion region; the clapboard is made by bonding a thin copper sheet, a platinum catalyst and a porous copper sheet. Mixed gas is preheated before being ignited, thereby reducing outward heat loss due to radiation, enhancing the flame stability and raising the average temperature of a wall surface.

Description

technical field [0001] The invention belongs to the technical field of micro-power electromechanical systems, and specifically relates to micro-thermal photoelectric devices. It is an innovative design of the combustion chamber structure based on micro-scale premixed combustion technology and catalytic combustion technology, so as to improve the overall performance of the flat-plate micro-thermal photoelectric system; A partition with good thermal conductivity is placed in the micro-combustion chamber, which divides the combustion chamber into a preheating zone and a combustion zone. The partition is made of thin copper sheets, platinum catalysts and porous copper sheets; in this way, the mixed gas is ignited It has been preheated before, which reduces the heat loss to the outside world, and also improves the stability of the flame and the average temperature of the wall. Background technique [0002] Micro power system (Power MEMS) is a new research field of micro electrome...

Claims

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Application Information

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IPC IPC(8): F23D14/02F23D14/46
CPCY02E20/34
Inventor 潘剑锋刘启胜胡松邵霞刘杨先
Owner JIANGSU UNIV
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