新型空气/酒精火炬点火器设计及试验

doi:10.13675/j.cnki. tjjs. 180818

推进技术 ›› 2019, Vol. 40 ›› Issue (11): 2513-2520.DOI: 10.13675/j.cnki. tjjs. 180818

新型空气/酒精火炬点火器设计及试验

何修杰¹,晏至辉²,杨样²,陈晨^2,3,齐新华²

1.西北工业大学动力与能源学院;2.中国空气动力研究与发展中心;3.江苏科技大学机械工程学院，江苏镇江;212000

发布日期:2021-08-15
作者简介:何修杰，博士生，工程师，研究领域为喷雾燃烧。E-mail：hxj_83@mail.nwpu.edu.cn

Design and Experiment of New Air/Ethanol Torch Igniter

1.School of Power and Energy,Northwestern Polytechnical University,Xi’an 710072,China;2.China Aerodynamics Research and Development Center,Mianyang 621000,China;3.School of Mechanical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212000,China

Published:2021-08-15

摘要/Abstract

摘要： 为满足燃烧装置对点火系统低时序控制精度和运行参数宽范围可调的需求，设计了一种能够在宽油气比范围内工作，且对燃料和氧化剂注入时序要求较低的空气/酒精火炬点火器。该火炬点火器利用气泡雾化喷嘴组织燃料雾化，采用电嘴进行点火，开展了不同气液质量比和当量比下火炬点火器的热态调试，并将其作为点火装置应用于燃烧加热器开展点火试验。结果表明：火炬点火器在空气注入稳定后即可注入燃料点火起动，对燃料和氧化剂注入时序要求较低；在气液质量比5.73%~19.56%和当量比0.51~2.48内，火炬点火器均能实现快速点火和稳定燃烧，具备点火参数在较宽范围内调节的能力；将火炬点火器应用于燃烧加热器，可迅速点燃主气流，在燃烧加热装置上有良好应用前景。

关键词: 气泡雾化;火炬点火器;空气;酒精;燃烧

Abstract: An air/ethanol torch igniter was designed to meet the need of lower timing control precision and wider operation parameters adjustment range of the igniter system of combustion facilities. The torch igniter could function in a wide range of equivalence ratio, and had a lower requirement of fuel and oxidant injection time. An effervescent atomizer and an electric igniter， respectively， were used to atomize and ignite the liquid fuel. Ignition tests were carried out with different gas-liquid ratio of effervescent atomizer and different equivalence ratio of torch igniter. And as an igniter device of a type of combustion heater, the torch igniter was applied to ignite the main combustion chamber. Conclusions could be obtained by the tests: Fuel could be injected and electric igniter could be started to make the torch igniter function when the air pressure got stability, which meant the torch igniter had a lower requirement of fuel and oxidant injection time. The torch igniter had a parameter adjustment ability in a wider range. It could operate within gas-liquid mass ratio of 5.73%~19.56% and equivalence ratio of 0.51~2.48. The igniter could be used as an ignition apparatus of combustion heater, and has good application prospect in combustion heating device.

Key words: Effervescent atomization;Torch igniter;Air;Ethanol;Combustion

何修杰,晏至辉,杨样,陈晨,齐新华. 新型空气/酒精火炬点火器设计及试验[J]. 推进技术, 2019, 40(11): 2513-2520.

HE Xiu-jie¹,YAN Zhi-hui²,YANG Yang²,CHEN Chen^2,3,QI Xin-hua². Design and Experiment of New Air/Ethanol Torch Igniter[J]. Journal of Propulsion Technology, 2019, 40(11): 2513-2520.

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新型空气/酒精火炬点火器设计及试验

Design and Experiment of New Air/Ethanol Torch Igniter

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