Micro parallel plate burner with preheating channel

A technology of preheating channels and parallel plates, which is applied in the direction of burners, gas fuel burners, and combustion methods, and can solve problems such as poor matching between radiators and photocells, short residence time of mixed gas, and low overall conversion efficiency. , to achieve the effect of improving photoelectric conversion efficiency, improving energy conversion efficiency, and stabilizing combustion

Inactive Publication Date: 2009-09-23
JIANGSU UNIV
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Problems solved by technology

At present, the burner of the common micro-thermal photoelectric system is cylindrical, the residence time of the mixed gas in the micro-flame tube is short, the combustion is not sufficient, the surface temperature of the radiator is low, and the supporting work of the radiator and the photocell is not good. Therefore, the overall conversion efficiency of the system is not high

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  • Micro parallel plate burner with preheating channel

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Embodiment Construction

[0011] In the present invention, the quartz glass shield is an integration of three parts. The boss shield of the uppermost part and the glass on the left and right sides are both double-layered in the middle vacuum structure. The overall height of the burner is 10.8mm and the width is 3.8mm. The length is 8mm, the single-layer glass thickness is 0.2mm, and the vacuum width is also 0.2mm; the material of the combustion chamber is SiC ceramics with strong high temperature resistance. The physical properties of SiC used are shown in the table below. The height of the radiation surface outside the combustion chamber is 10mm, the length is 8mm, the height of the combustion zone is 8mm, the width is 1mm, and the wall thickness is 0.2mm; the height of the mixing zone is 2mm, the width is 0.2mm, and the corresponding wall thickness is 0.6mm; The width of the hot zone channel is 0.6mm, and the diameter of the air inlets at both ends is 0.4mm. Under normal temperature and a standard atmosp...

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Abstract

The invention belongs to the field of micro-power electromechanical systems (MEMS), particularly relates to a micro parallel plate burner with a preheating channel. The micro parallel plate burner with a preheating channel consists of a parallel plate burning chamber, a preheating channel and a quartz shade, which are arranged from inside to outside, wherein the upper half section of the parallel plate burner is an oxy-hydrogen premixing zone; and the quartz shade is double-layered and internally vacuumized. Fuels and oxidant can be preheated before being mixed by the preheating channel, thereby more stable burning is realized; and the double-layered vacuumized quartz shade not only can make most of photons generated on the radiation surface of the burner pass through, but also play a heat insulation role, so that the whole transformation efficiency and the working performance of micro thermophotovoltaic systems are greatly improved.

Description

Technical field [0001] The invention belongs to the field of micro power electromechanical systems (Power MEMS, referred to as micro power systems), belongs to a new type of preheating mixed combustion technology, and specifically refers to a micro parallel plate combustor with a preheating channel. Background technique [0002] The development of information technology and biotechnology has promoted the development of electromechanical systems in the direction of miniaturization. At the same time, the progress of micro-manufacturing technology is also accelerating this process. The micro-electromechanical system puts forward the requirements of light weight and long use time for its power supply part. However, the existing batteries are far from being able to meet these requirements due to the low energy density. The micro-power system can provide long-life, high-energy-density energy and power for micro-machines. It is the fourth milestone in the development of power plants, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/02
Inventor 唐爱坤潘剑锋李晓春杨文明
Owner JIANGSU UNIV
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