Variable-pressure gas explosiveness testing device driven by double-acting cylinder

The invention relates to a variable-pressure gas explosiveness testing device driven by a double-acting cylinder. The variable-pressure gas explosiveness testing device comprises a testing cylinder body, a first piston, a gas inlet pipeline, a gas outlet pipeline, an ignition element and the like, the double-acting cylinder comprises a double-acting cylinder body and a second piston, and the second piston is movably arranged in the double-acting cylinder body and divides an inner cavity of the double-acting cylinder body into two sub-cavities which are not communicated with each other; and theconnecting rod is connected with the first piston and the second piston. Compared with the prior art, the gas explosiveness testing device can carry out gas explosiveness testing of continuous pressure transformation, and pressure buffering can be achieved when explosion occurs. 本发明涉及一种双作用气缸驱动的变压气体爆炸性测试装置，包括：测试气缸：包括测试缸体、第一活塞、进气管路、出气管路、以及点火元件等；双作用气缸：包括双作用缸体和第二活塞，所述第二活塞活动设置在双作用缸体内，并将双作用缸体内部空腔分隔为互不连通的两个子腔体；连接所述第一活塞和第二活塞的连杆。