Turbulent micro burner preheated by exhaust gas

Abstract

The invention relates to a turbulent micro burner preheated by exhaust gas. The turbulent micro burner comprises a combustion chamber, a gas inlet chamber, an exhaust chamber, a gas inlet pipe and an exhaust pipe, wherein the combustion chamber, the gas inlet chamber and the exhaust chamber are all flat cylinders; the gas inlet pipe and the exhaust pipe are cylinders; the combustion chamber is arranged in the gas inlet chamber; the top of the combustion chamber is communicated with the inner surface of the top of the gas inlet chamber; the combustion chamber is provided with three combustion chamber inlets which are formed in the side surfaces of the combustion chamber respectively; every two adjacent combustion chamber inlets are spaced at an interval of one third of an arc; an included angle formed between an axis of each combustion chamber inlet and a round edge tangent line of the combustion chamber is 30 degrees; a combustion chamber exhaust port is formed in the center of a top section of the combustion chamber and is round, and a circle center of the combustion chamber exhaust port is located in an axis of the combustion chamber; the gas inlet pipe is arranged in a center of the lower surface of the gas inlet chamber, and a section area is equal to that of the combustion chamber exhaust port; the gas inlet chamber is arranged in the exhaust chamber; the gas inlet chamber and the exhaust chamber are connected through fixing supporting columns; the exhaust pipe is arranged in the center of the lower surface of the exhaust chamber, and the section area is larger than that of the gas inlet pipe; and a layer of a heat insulation material is arranged on the outer layer of the exhaust chamber and the outer layer of the exhaust pipe.

Description

technical field [0001] The invention belongs to the technical field of micro-power electromechanical systems, specifically relates to a micro-thermal photoelectric device, and is an innovative design of a combustion chamber structure based on a micro-scale premixed combustion technology and a vortex combustion technology. Change the flat-plate combustion chamber into a flat cylindrical combustion chamber, redesign the overall structure, arrange the inlet and outlet, use the exhaust gas after combustion to preheat the gas, and the preheated gas will form a vortex after entering the combustion chamber, thereby realizing vortex combustion. Improve the overall performance of micro-thermophotovoltaic systems. Background technique [0002] The micro-power electromechanical system converts the chemical energy of hydrogen or hydrocarbon fuel into heat energy directly through combustion in the micro-system, and then relies on a variety of energy conversion methods to provide power or...

AI Technical Summary

Problems solved by technology

This type of combustion chamber has a rectangular parallelepiped structure, with one side for intake and one side for exhaust. The air flow of the fuel-oxidant mixture cannot be well organized, the combustion stability is poor, and the combustion efficiency is limited.

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