| 摘要 |
FIELD: protection from explosions. ^ SUBSTANCE: method includes building of wall around explosion-hazardous object. Wall is made of two layers, one behind another. First layer of splitters is positioned along radius on the way of explosion products coming from center with harmful dispersed particles contained therein. Second layer is positioned on the way of formed stream flows with spacing relatively to first one. Wall of second layer is made of absorbing fragments, absorbing harmful substances by impacting, and with radial displacement of absorbing fragments relatively to first layer splitters. Space between layers of splitters and absorbing fragments is filled with foam-aero-gel forming mass, interacting with gas flows. Aero-ballistic parameters, mass, number and dimensions of absorbing fragments is selected from relation VDeltat<=NxA/2pi, where V - average splitters flight speed, determined by pressure of explosion product, aero-ballistic coefficient and mass of each splitter and each absorbing fragment; N - number of splitters; Deltat - time of gas-dynamic filtering (during passing of explosion products through layers); A - size of explosion fragment, absorbing harmful substances, concentrated by gas-dynamic jets, after passing by first layer. ^ EFFECT: weakened air-blast, absorbed harmful dispersed particles. ^ 2 dwg, 1 ex |
