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1. 发明申请

WO2008040055A1 AN APPARATUS AND METHOD FOR FORMING AN OPENING IN A STORAGE TANK 审中-公开
标题翻译：用于在储存罐中形成开放的装置和方法
公开(公告)号：WO2008040055A1
公开(公告)日：2008-04-10
申请号：PCT/AU2007/001471
申请日：2007-10-04
申请人： ZESTCO PTY LTD , TIMMS, Dale, Mclntyre , QUINAN, Philip , THORPE, Russell
发明人： TIMMS, Dale, Mclntyre , QUINAN, Philip , THORPE, Russell
IPC分类号： B26D9/00 , B23B41/00 , B23B43/00 , B65D90/00
CPC分类号： B26F1/0023 , B23B41/00 , B26D7/00 , B26D7/08 , F16L41/04 , Y10T137/0463 , Y10T137/0469 , Y10T137/598 , Y10T137/6123
摘要： An apparatus and method for forming an opening through a storage tank (3) containing a flammable and/or combustible fluid, for example petrol. The storage tank (3) includes a hollow column (7) extending outwardly from an exterior surface of the storage tank (3) An interior wall of the hollow column (7) in combination with the exterior surface of the storage tank (3) defining a well-like cavity allowing access by the apparatus (1) to the exterior surface of the storage tank (3). The apparatus (1) includes a cutting assembly (13) for cutting through the exterior surface of the storage tank (3); and a housing assembly for supporting the cutting assembly (13). The housing assembly includes a sealing assembly for sealing the housing assembly with respect to the hollow column (7) such that the cavity is sealed from surrounding air. The housing assembly further includes a fluid circulation assembly for passing nitrogen into the cavity such that a non-flammable environment is provided within the cavity during cutting of the opening. The opening is thereby safely cut without generating ignition sources such as sparks and flames. Flammable vapour is also prevented from escaping into the surrounding air. In addition, the storage tank (3) does not need to be emptied of fluid prior to the commencement of the cutting process.
摘要翻译：一种用于通过容纳易燃和/或可燃液体（例如汽油）的储罐（3）形成开口的装置和方法。储罐（3）包括从储罐（3）的外表面向外延伸的空心柱（7）。空心柱（7）的内壁与储罐（3）的外表面组合形成容纳通过设备（1）到储罐（3）的外表面的良好的腔。所述设备（1）包括用于切割所述储罐（3）外表面的切割组件（13）。以及用于支撑切割组件（13）的壳体组件。壳体组件包括用于相对于中空柱（7）密封壳体组件的密封组件，使得空腔与周围的空气密封。壳体组件还包括用于将氮气输送到空腔中的流体循环组件，使得在切割开口期间在空腔内提供不可燃的环境。从而安全地切割开口而不产生火花和火焰等点火源。也可以防止易燃蒸气逸出到周围的空气中。此外，在开始切割过程之前，储存罐（3）不需要被清空流体。

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