依客思隔爆型防爆控制箱有什么特点?它起到一个什么作用?
隔爆又称耐压防爆,它把能点燃爆炸混合物的仪表部件封闭在一个外壳内,该外壳特别牢固,能承受内部爆炸性混合物的爆炸压力,并阻止向壳外的爆炸性混合物传爆。这就是说,隔爆型仪表的壳体内部是可能发生爆炸的,但不会传到壳体外面来,因此这种仪表的各部件的接合面,如仪表盖的螺纹圈数,螺纹精度,零点,量程调整螺钉和表壳之间,变送器的检测部件和转换部件之间的间隙,以及导线口等,都有严格的防爆要求。
隔爆型仪表除了较笨重外,其他比较简单,不需要如安全栅之类的关联设备。但是在打开表盖前,必须先把电源关掉,否则万一产生火花,便会暴露在大气之中,从而出现危险。
Flame-proof also called pressure explosion-proof, it can ignite explosive mixture of instrument parts enclosed in a shell, the shell is particularly strong, can withstand the internal pressure, the explosion of explosive mixture and stop to the shell of booster explosive mixture. That is to say, flameproof instrument shell exploded inside is possible, but not to the shell to outside, so the appearance of the various components of the joint surface, such as the meter cover thread laps, screw, precision, zero range adjustment screw and watchcase, transmitter detection of space between the components and conversion components, as well as wire mouth and so on, all have strict requirements of explosion-proof.
Flameproof instrument besides relatively heavy, the other is simpler, don't need such as safety grid connection equipment. But before open the table cover, must turn off the power supply first, otherwise produce sparks, one thousand will be exposed to the atmosphere, resulting in dangerous.