可燃气体爆炸泄压过程中声动不稳定燃烧压力峰减弱方法的研究

本文介绍了爆炸减压板的减压性能和减压功能对比试验,指出爆炸减压板是防止建筑物在可燃气体泄放爆炸中破坏的重要措施。

ON THE ELIMINATION MEASURES OF PRESSURE PEAK DRIVEN BY ACOUSTICALLY UNSTABLE COMBUSTION IN VENTED GAS EXPLOSIONS

This paper describes the elimination measure of pressure peak driven by a-coustically instable combusion in vented gas explosion by means of explosion pressure reducing board. The explosion pressure reducing board is a kind of effective product which can reduce the explosion pressure inside the building. It is made of flame-proof or non-com-bustible materials, has a special style surface and can be adhered on the inner walls and ceilings of any building. More than one hundred tests have been performed in 1.0m3 and 30.0m3 explosion vessel. These tests consider variable paramaters that can influence explosion pressure peak, such as gas concentration, scale vent ratio. matter of vent cover and initial turbulence.It has been proved by these tests that the explosion pressure of combustible gas or flammable vapours such as LPG in any concentration which produced in building during the vented explosion can be reduced from the maximum 100KPa to 8KPa by explosion pressure reducing board Apparently, this measure, the explosion pressure reducing board, can prevent the main building structure to damage from combustible gas explosion and greatly reduce the losses of people and property during explosion to a minium level.