A explosion -proof clamping device that is used for pressure testing of cryrogenic container intermediate layer

The utility model discloses a blast proof clamping device during the pressure testing of cryrogenic container intermediate layer. The device includes snap ring and gland, and both connect through studand nut, the lower part shape and the explosion -proof cover shape phase -match of gland, the snap ring comprises the two halves of symmetry, processing has the bulge loop that matches with explosion-proof base recess on the snap ring. During the use, with the device compaction explosion -proof cover, prevent when the intermediate layer pressure testing that pressure exceedes explosion -proof cover's rated pressure take -off pressure release. The device simple structure, convenient operation can guarantee going on smoothly of intermediate layer pressure testing. 本实用新型公开了种深冷容器夹层试压时防爆的夹紧装置。该装置包括卡环和压盖，两者通过双头螺栓和螺母连接；所述压盖的下部形状与防爆盖形状相匹配；所述卡环由对称的两半组成；在卡环上加工有与防爆底座凹槽匹配的凸环。使用时，将该装置压实防爆盖，防止在夹层试压时，压力超过防爆盖的额定压力起跳泄压。该装置结构简单，操作方便，可保证夹层试压的顺利进行。