Double-layer backheating type micro-combustor

Abstract

The invention provides a double-layer backheating type micro-combustor and belongs to the field of energy combustion and utilization. The double-layer backheating type micro-combustor comprises combustor walls, a transverse heat-conducting partition board, a longitudinal heat-conducting partition board, an air inlet and an air outlet. The combustor walls include the upper wall, the lower wall, the left wall, the right wall and the front wall. A rectangular through hole is formed in the right side of the front wall of the combustor. The transverse heat-conducting partition board and the longitudinal heat-conducting partition board are arranged in the combustor. According to the double-layer backheating type micro-combustor, the heat-conducting partition boards are arranged transversely and longitudinally, so that the internal space of the combustor is evenly divided into four areas; non-combusted gas is preheated both in the transverse direction and the longitudinal direction, and the energy utilization rate is remarkably increased; meanwhile, the space of the combustor is greatly utilized, the uniformity of the wall surface temperature is also improved. In addition, the detention time of mixed gas is greatly prolonged due to the fact that the mixed gas flow around the combustor three times, and accordingly the mixed gas is combusted more sufficiently, and more heat can be absorbed by the wall surfaces. The double-layer backheating design way has a positive effect on improving the output performance of a micro thermal photovoltaic system.

Description

technical field [0001] The invention specifically relates to a micro power electromechanical system (PowerMEMS, referred to as a micro power system), which belongs to the field of energy combustion utilization, and is an improved technology for strengthening micro-scale combustion, in particular a double-layer regenerative micro burner. Background technique [0002] In recent years, more and more researchers at home and abroad have gradually turned their attention to micro power systems. The reason why this type of device has received so much attention is because it has a series of advantages such as high energy density, long working life, easy maintenance and low pollution, which coincides with the concept of pursuing energy saving and emission reduction in the energy field today. of. The micro power system can convert the chemical energy of hydrocarbon fuel or hydrogen into heat energy through combustion, and rely on various energy conversion methods to provide power or e...

AI Technical Summary

Problems solved by technology

Although the fuel residence time of this type of burner is prolonged, there are still some defects, that is, the space utilization rate is not high when the mixture is burned, the uniformity of the wall temperature distribution is not enough, and the structure is more complicated.

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