The utility model relates to an explosion-proof well cover, which comprises a well seat, a well cover and a locking device. The well seat is fixed on the ground, and a part of the well cover extends to the inner part of the well seat. A plurality of locking devices are arranged at the connecting part of the well cover cover cover and the locking device comprises a rotating shaft, a push rod and a locking tongue. A locking tongue is provided with a through hole at the outer end of the locking tongue, and a rotating shaft is penetrated in the through hole, and the rotating shaft is fixed on the shaft seat so that the locking tongue can rotate around its axis. The lower surface of the well cover is provided with two push rods, and the two push rods are respectively distributed on both sides of the lock tongue. Compared with the prior art, the utility model has the technical effect that a locking device is arranged between the well seat and the well cover to complete the locking of the two, and a sealing ring is arranged to completely isolate the connection between the well and the outside world, thus being very safe.
【技术实现步骤摘要】
一种防爆井盖
本技术涉及一种石化行业的防爆窨井盖。
技术介绍
在石化行业中,地下管网有一部分是排污设施,在这些管道内混杂有各种水的混合物,如油污、雨水、可燃气体等成分。现场需要排水、清淤的需要留有不少和地面相通的井口。由于对于排污设施内部介质成分较复杂,稍不注意就会引起火灾或爆炸,直接威胁生产的安全。现有大多数石化行业在井口使用普通的球墨铸铁井盖,井盖上部铺上沙子,以此来让地面的明火不进入井内和井内的有害物不泄漏到地面的方法来处理。这种方法存在较多弊端,首先是井内可燃物的起火并不一定是外部明火所致,其次真要起火爆炸,现有井盖会被强气流炸飞,明火马上蔓延出来,威胁现场人员和设备。国内石化行业由于此项问题多次出现事故,引起连锁起火爆炸。
技术实现思路
针对原有窨井盖的不足,防爆窨井盖可以解决上述出现的问题,此种窨井盖按照防爆密封的要求进行设计,完全隔离窨井内部介质和外部的通路,窨井盖有闭锁结构,方便现场的安装和维护。本技术的技术方案具体为:一种防爆井盖,包括井座、井盖及锁闭装置,井座固定在地面上,井盖套压井座上且部分井盖延伸到井座内部,两者的连接部设有多个锁闭装置,锁闭装置包 ...
【技术保护点】
1.一种防爆井盖,井座固定在地面上,井盖套压井座上且部分井盖延伸到井座内部,两者的连接部设有多个锁闭装置,其特征在于:锁闭装置包括转轴、推杆、锁舌;井座的侧表面设有安装锁舌的锁槽,锁槽内设有锁舌,锁舌的外端部设有通孔,通孔内穿设转轴,转轴固定在井座上,使锁舌能够绕其轴线旋转;井盖的下表面设有两个推杆,两个推杆分别分布在锁舌的两侧;井盖在锁舌的匹配位置设有锁合腔,当锁舌的轴线通过井盖的圆心时,锁舌进入锁合腔。
【技术特征摘要】
1.一种防爆井盖,井座固定在地面上,井盖套压井座上且部分井盖延伸到井座内部,两者的连接部设有多个锁闭装置,其特征在于:锁闭装置包括转轴、推杆、锁舌;井座的侧表面设有安装锁舌的锁槽,锁槽内设有锁舌,锁舌的外端部设有通孔,通孔内穿设转轴,转轴固定在井座上,使锁舌能够绕其轴线旋转;井盖的下表面设有两个推杆,两...
【专利技术属性】
技术研发人员:吴兴滨,
申请(专利权)人:洛阳毅兴石化电器仪表设备有限公司,
类型:新型
国别省市:河南,41
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