Figure 10.1 illustrates a schematic diagram of experimental apparatus for studying the explosion resistance performance of hydrogen crimped-ribbon flame arrester under the presence of obstacles. The main body included the explosion pipe (including an unprotected pipe (L1 = 2 m) and a protected pipe (L2 = 2 m)), a flame arrester (including flame arrester element and expansion chamber structure), an obstacle group, a gas distribution system, an ignition system, a flame acquisition system, a pressure acquisition system, a temperature acquisition system and a program control and data acquisition system (Wang et al. in Int J Hydrogen Energy 48:34440–34453, 2023).