新皮皮达运动消防安全供水系统

Y. Abramov, V. Kryvtsova, A. Mikhailyuk
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引用次数: 0

摘要

在获得表征储氢和供氢系统消防安全水平的估计时,由于其发生的主观性质,存在误差。需要指出的是,利用储氢和供氢系统主要元件失效的概率特性,有可能削弱主观性质对这些估计的影响。这些基本元素包括燃气发生器。结果表明,氢化反应样品与液态水之间的扩散过程伴随着位于反应表面的气泡的出现。这一过程——化学沸腾——具有内在特征。实验得到了氢化铝钠加氢反应样品的内部特征,用四阶多项式逼近,表征了气泡直径和产生频率与反应表面直径的关系。值得注意的是,气体发生器的特性取决于氢反应样品的反应表面的方向。基本气泡的生长速率实际上并不取决于反应表面的直径,并且反应表面垂直排列的表面尺寸比水平排列的表面尺寸大几个百分点。最不利的生气模式是当氢反应样品的反应面朝下时。结果表明,由于采用聚类氢反应样品(被动方法)和形成作用于气泡的水动力(主动方法),可以提高储氢和供氢系统气体发生器的可靠性。这些建议体现在一个氢储存和供应系统的例子中,该系统具有氢反应样品的振动运动,该系统以一组相同的长圆柱体的形式组装在一个网状盒中。关键词:给水系统,燃气发生器,消防安全,可靠性。
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NEW PIDHID UP TO THE MOVEMENT OF FIRE SAFETY WATER SYSTEMS
When obtaining estimates that characterize the level of fire safety of the hydrogen storage and supply system, there is an error due to the subjective nature of its occurrence. It is noted that it is possible to weaken the influence of the subjective nature on these estimates by using the probabilistic characteristics of failure of the main elements of the hydrogen storage and supply system. Such basic elements include a gas generator. It is shown that the diffusion processes between the hydroreactive sample and the liquid - water are accompanied by the appearance of gas bubbles located on the reacting surface. This process - chemical boiling is characterized by internal characteristics. Internal characteristics were obtained experimentally for hydroreactive samples based on sodium aluminum hydride, which are approximated by polynomials of the fourth order and represent the dependence of the diameter of gas bubbles and the generation frequency on the diameter of the reacting surface. It is noted that the characteristics of the gas generator depend on the orientation of the reacting surfaces of the hydroreactive sample. The growth rate of basic bubbles practically does not depend on the diameter of the reacting surface, and the size of this surface for the vertical arrangement of the reacting surface is several percent larger than for its horizontal arrangement. The most unfavorable mode of gas generation is the case when the reactive surface of the hydro-reactive sample is oriented downwards. It is shown that increasing the reliability of the gas generator of the hydrogen storage and supply system is possible due to the implementation of a hydroreactive sample with a polylike one - a passive method and due to the formation of hydrodynamic forces acting on gas bubbles - an active method. These recommendations are embodied on the example of a hydrogen storage and supply system with vibrational movement of a hydroreactive sample, which is made in the form of a set of identical long cylinders assembled in a mesh cassette. Keywords: water saving and supply system, gas generator, fire safety, reliability.
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