Suppressive effect of methane-air mixture explosion in linked vessels

Five experiment test systems with different structures which consist of small spherical vessel, pipe and big spherical vessel were established to study the suppressive effect of methane-air mixture explosion in linked vessels. The factors of methane-air explosion intensity in linked vessels were studied under the condition of different layers of 40 mesh, such as pipe length, mesh layer, secondary vessel and explosion suppression position. The main conclusions are as follows: (1) With the increase of the layer number and the pipe length, the pressure at the end of the pipe is gradually reduced when small spherical vessel is connected with pipes. (2) For the structure of small spherical vessel connected with pipes, the gas explosion intensity increases in linked vessels when the secondary vessel is added. (3) For the linked vessels with two spherical vessels and one pipe, the more the layer number, the better the explosion suppression effect. (4) For the linked vessels with two spherical vessels and two pipes, the explosion suppression effect of mesh exists but is not obvious. (5) For the linked vessels with a small spherical vessel and three pipes, explosion suppression position has a large impact on methane-air mixture explosion. For the linked vessels, the impact of explosion suppression position has something to do with the layer number. In actual production application, different factors should be comprehensively considered in order to choose the best explosion suppression device.