共查询到19条相似文献,搜索用时 578 毫秒
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脉冲燃烧器是一种新型燃烧器。在我国,脉冲燃烧器的研究刚刚开始。本文目的是对脉冲燃烧器的有关特性进行实验性研究。 一、排气特性脉冲燃烧过程见图1。 相似文献
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民用煤气灶轻型旋流燃烧器的研究 总被引:3,自引:2,他引:1
本文介绍了一种新型民用煤气灶燃烧器,特点是应用射流附壁原理,产生旋转射流,简化了燃烧器结构,减轻了燃烧器重量,并对该燃烧器原理、结构、设计参数及试验效果等进行了系统的研究和论述。 相似文献
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随着石油、天然气价格的不断上升,在玻璃熔窑的天然气的使用越来越引起人们的关注,火焰形状的控制,其辐射和氮氧化物的产生,跟炉口和燃烧器的设计与操作密切相关。本文介绍了一种新型的双喷嘴燃烧器FlammaTecTM Flex,并介绍了其在玻璃窑炉中的应用,结果表明,相对于单喷嘴燃烧器,利用双喷嘴燃烧器可实现对燃烧火焰的精确控制,在天然气–空气燃烧系统中具有广阔的应用前景。 相似文献
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提出一种带喷口角无焰氧化燃烧器,该燃烧器在圆周上均匀地交叉布置6个空气喷口和6个燃料喷口,燃料喷口与燃烧器轴线向外成一定倾角.通过数值模拟研究了该燃烧器燃烧区域和附近区域的速度、温度和氮氧化物排放特性.燃烧器的空气射流具有较强的卷吸能力,空气和燃料混合更均匀,燃烧也更均匀,因此具有较低的燃烧温度和氮氧化物生成率. 相似文献
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Paul Kerr Sherril D. Christian Edwin E. Tucker Cedomir M. Sliepcevich Arnulf P. Hagen 《Fire Technology》1998,34(1):72-88
A simple laboratory apparatus is described for observing the performance of fire extinguishing agents in total flooding applications. Known compositions of agents mixed with dry air are prepared in a 2 L glass combustion flask, and a flame fed by propane, butane, or other gaseous fuel from a pressure cylinder is inserted into the flask through a standard taper joint. Burning times to extinguishment are measured, both in the absence and presence of added physical or chemical agents. From the known rate of propane burning and initial compositions, the percentages of gas volume in the combustion flask at extinguishment are calculated for each burning time. Agents that are not sufficiently volatile to be investigated with the ordinary cup burner method are readily studied with the new technique.An adiabatic flame temperature model previously used to correlate cup burner test results has been applied to obtain limiting agent percentages required for total flooding extinguishment and to accurately predict the effect on burning time of different concentrations of physical and chemical agents and other gases in the flask. 相似文献