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Double-grating charging mist spray minitype liquid burner

A micro-liquid and burner technology, applied in burners, lighting and heating equipment, etc., can solve the problems of short residence time of gas mixture and large heat loss, and achieve stable and complete combustion, simple combustion control, and extended residence time. Effect

Inactive Publication Date: 2014-05-14
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with conventional scale combustion processes, microscale combustion faces many challenges, such as large heat loss, short residence time of gas mixtures, material constraints, and wall quenching of chemical primitives

Method used

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  • Double-grating charging mist spray minitype liquid burner
  • Double-grating charging mist spray minitype liquid burner
  • Double-grating charging mist spray minitype liquid burner

Examples

Experimental program
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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with specific examples.

[0027] Implementation example

[0028] Such as Figure 1 to Figure 4 shown. The double-grid charged spray micro-combustor of the present invention comprises A pipe 3, B pipe 5, C pipe 7 and D pipe 10 from left to right; A symmetrical air inlet pipe 1 is arranged on the left side wall, a ring electrode 4 is arranged between the A pipe 3 and the B pipe 5, a droplet collecting grid 6 is arranged between the B pipe 5 and the C pipe 7, and the C pipe 7 and the D pipe A combustion grill 8 is set between 10; the ignition needle of the igniter 9 passes through the tube wall of the D tube 10 and is placed on the right side of the combustion grill 8.

[0029] The liquid fuel nozzle 2 is connected to the positive pole of a high-voltage DC power supply (DC power supply voltage is 1-5kV), the ring electrode 4 is connected to the positive pole of another high-voltage DC power s...

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Abstract

The invention discloses a double-grating charging mist spray minitype liquid burner which comprises a pipe A, a pipe B, a pipe C, a pipe D and an air feed pipe. A liquid fuel spray pipe is arranged in the pipe A, air inlet pipes are symmetrically arranged on the left side wall of the pipe A, an annular electrode is arranged between the pipe A and the pipe B, a liquid drop collecting grating is arranged between the pipe B and the pipe C, a burning grating is arranged between the pipe C and the pipe D, and an ignition needle of an igniter penetrates through the pipe wall of the pipe D and is arranged at the right of the burning grating. According to the double-grating charging mist spray minitype liquid burner, according to the characteristics of liquid fuel burning under microscale conditions, an acicular electrode and the annular electrode are combined, the liquid drop collecting grating and the burning grating are designed separately, charging atomization, evaporating gasification and burning of liquid fuel can be approximately carried out in a staging mode, the stability and thorough burning of the liquid fuel under the microscale conditions are achieved, the purpose of achieving complex burning control through simple electric field parameter control is achieved, and theoretical innovation is achieved.

Description

technical field [0001] The invention relates to a miniature liquid fuel burner, in particular to a double-grid charged spray miniature liquid fuel burner. Background technique [0002] Micro-burners have important applications in micro-energy systems. The energy density of micro-energy systems using hydrogen and hydrocarbons as fuel is about dozens of times that of traditional chemical batteries, which can overcome the low energy density of chemical batteries (use time Short), large volume and weight, long charging time and other disadvantages; liquid fuel has higher density, larger reserves in the same volume, which is conducive to continuous combustion, and has better safety, more convenient storage and transportation, and higher energy density. Therefore, Micro-combustors for liquid fuels have great application potential. [0003] On a microscale, the characteristic size of the combustion chamber is already close to or smaller than the quenching diameter (or quenching di...

Claims

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Application Information

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IPC IPC(8): F23D11/12F23D11/38F23D11/36
Inventor 甘云华张夏
Owner SOUTH CHINA UNIV OF TECH