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尽管已经广泛地使用了天然气,但是由于某些原因(如用氢含量高的合成天然气作为高峰负荷时的补充气)而使得除了能烧天然气外还能烧液化石油气和各种富氢煤气的鼓风式燃烧器的使用继续受到重视。为了解决火焰稳定问题(回火或离焰),研制了一种建立在“紊流扩散火焰稳定模型”基础上的包括混合系统在内的燃烧器头部,它避免了由于燃烧不同种类煤气时带来的问题。通过降低(燃烧器的)热负荷可以得到大的负荷调节范围。对混合系统稍作修改就可以调节不同的火焰长度和火焰颜色(蓝色或黄色)。由于采用了标准的燃烧器部件(涡流叶片等),这种新的头部可以使用大量生产的标准燃烧器外套而不必修改设计。对按照 DIN4788标准制造的燃烧器原型(鼓风式)的试验研究表明,在燃烧器本身压降较小的情况下,它具有火焰稳定性好、负荷调节比大的性能。CO 及 NO_x 的生成量也远低于目前的规定。采用标准的燃烧器外套的这种新型头部按照 DIN4788标准所进行的全部试验提供了这种燃烧器原型的各项试验结果。
Although natural gas has been widely used, for some reasons (such as using natural gas with high hydrogen content as makeup gas at peak load), it is possible to burn liquefied petroleum gas and various hydrogen-rich gases in addition to natural gas The use of blast-type burners continues to receive attention. In order to solve the problem of flame stabilization (tempering or flame-out), a burner head including a hybrid system based on the “Turbulent Diffusion Flame Stabilization Model” was developed, Gas when the problem. By reducing the (burner) heat load can be a large load adjustment range. With a few modifications to the mixing system, different flame lengths and flame colors (blue or yellow) can be adjusted. Thanks to the standard burner components (vortex blades etc.), this new head allows the use of mass-produced standard burner jackets without having to modify the design. Experimental studies on the burner prototype (blower type) made to DIN4788 show that it has good flame stability and high load regulation when the pressure drop in the burner itself is small. CO and NO_x generation is much lower than the current requirements. All the tests carried out according to DIN4788 using this new head of a standard burner jacket provide the test results of this prototype burner.