快开门防爆壳子常用的几种卡轨

Several Kinds of Stopper Rails of Explosion-proof Enclosure with Fast Open-door

采用快开门长方体矿用隔爆壳子,在门法兰和壳法兰上大都安装了卡规或卡板(以下均称卡规)。其作用是关门后将门法兰和壳法兰相应的边卡住,当壳腔内火花引燃腔内可燃气体发生爆炸,爆炸冲力不能打开壳子关着的门,并保证壳法兰和门法兰贴合着的隔爆面之间的间隙不超过隔爆间隙要求,壳腔内火花不能穿越隔爆面,到壳子外面。因此壳子的壳法兰、门法兰及卡规必需有足够的强度和一定的精度。就快开门防爆壳子常用的几种卡轨作了简要阐述。

Adopt a rectangular explosion - proof enclosure with a fast open - door, the block plate or gauge are mounted on the door flang and enclosure flange. Their functions are to seize relevant the door flange and enclosure flange after the door is closed. When the spark in the shell causes burning in the shell flammable gas to explode, explosive thrust should not open the door which is closed and ensure the gaps between the flame - proof surface which is fit against the enclosure fange and door flange Should not exceed the requirements of the flame - proof gas, the spark in the shell can not pass through the flame - proof surface goes out of the enclosure. Thus, the enclosure flange, door flange and gauge of the shell must be of enough strength and a certain accuracy.