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Porous medium super-thermal insulating burning method and burner under reciprocating flow

A porous medium and combustion device technology, applied in the direction of combustion methods, burners, combustion types, etc., can solve problems such as energy waste, environmental pollution, and thin combustible components, and achieve the effects of reducing emissions, preventing pollution, and stabilizing combustion

Inactive Publication Date: 2006-08-16
DALIAN MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the thin combustible components of this part of the gas, it is difficult to be utilized by conventional combustion technologies. If it is directly discharged into the atmosphere, it will not only cause energy waste, but also pollute the environment with toxic substances.

Method used

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  • Porous medium super-thermal insulating burning method and burner under reciprocating flow
  • Porous medium super-thermal insulating burning method and burner under reciprocating flow
  • Porous medium super-thermal insulating burning method and burner under reciprocating flow

Examples

Experimental program
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Effect test

Embodiment 1

[0017] The porous medium smaller than the quenching diameter is 40ppi aluminum oxide foam ceramics, and the porous medium larger than the quenching diameter is aluminum oxide foam ceramics with a uniform porosity of 10 to 30ppi. Turn on the domestic hot water circulation system to make the heat exchanger inside A water cycle is generated within the water course. The air flow direction control circuit is placed in the one-way flow setting. Outside the explosion limit, the air and gas mixture with a stoichiometric ratio of 0.4 enters the combustion chamber 21, the pulse probe ignites and burns for 17, and burns stably for 30 seconds. Set the reciprocating cycle For 60 seconds, the air flow reversing control system 6 is placed in the reciprocating flow setting, and the two pairs of solenoid valves 4 are switched on and off synchronously to realize the periodic reciprocating flow of the fluid in the gas pipeline, and gradually reduce the gas flow to realize the self-sustained combu...

Embodiment 2

[0019] The porous medium smaller than the quenching diameter is 40ppi aluminum oxide foam ceramics, and the porous medium larger than the quenching diameter is made of aluminum oxide ceramic balls with a diameter of 8 to 15mm. Water circulation is generated in the water path in the heater. The air flow direction control circuit is placed in the one-way flow setting. Outside the explosion limit, the air and gas mixture with a stoichiometric ratio of 0.4 enters the combustion chamber 21, the pulse probe ignites and burns for 17, and burns stably for 30 seconds. Set the reciprocating cycle For 60 seconds, the air flow reversing control system 6 is placed in the reciprocating flow setting, and the two pairs of solenoid valves 4 are switched on and off synchronously to realize the periodic reciprocating flow of the fluid in the gas pipeline, and gradually reduce the gas flow to realize the self-sustained combustion of the rare gas, and the flame is controlled at The combustion cham...

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Abstract

The inventive device consists of a foamed ceramic burner, a periodic converting air inlet-outlet pipeline system and a hot water supply circulation system. The operating principle is that: the air and the gas mixture are led from two ends of the burner separately at intervals of a certain time to realize periodic reciprocating flow combustion, accumulation of heat and heat release in the porous media of the combustion chamber, so as to intensify firing. The heat gaven out by firing can be used as the heat source for the hot water circulation system.

Description

technical field [0001] The invention belongs to the technical field of superadiabatic combustion of rare or even extremely rare gas in a porous medium under reciprocating flow. Background technique [0002] In terms of energy utilization in my country, on the one hand, there are problems such as low efficiency, environmental pollution, and serious waste. On the other hand, a large amount of low-grade energy has not been developed and utilized. For example, exhaust air in mines, "exhaust gas" with calorific value produced in petrochemical processing, gas produced in urban landfills, biomass pyrolysis and smoldering (such as burning pool heating) in nature and human life flammable gases, etc. Because the combustible components of this part of the gas are thin, it is difficult to be used by conventional combustion technology. If it is directly discharged into the atmosphere, it will not only cause energy waste, but also pollute the environment with toxic substances contained i...

Claims

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Application Information

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IPC IPC(8): F23D14/02F23L15/00F23D14/14
CPCY02E20/34
Inventor 邓洋波解茂昭
Owner DALIAN MARITIME UNIVERSITY
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