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    • 1. 发明授权
    • Process and device providing tightened operational safety for
underground liquefied gas storage
    • 工艺和设备为地下液化气储存提供紧密的操作安全性
    • US5383746A
    • 1995-01-24
    • US910119
    • 1992-07-15
    • Jean-Marie Dufourneaud
    • Jean-Marie Dufourneaud
    • B65G5/00F17C3/00F17C13/08F17C13/12
    • B65G5/00F17C13/126F17C3/005F17C2205/0335F17C2221/033F17C2223/0153F17C2223/033F17C2227/0135F17C2227/0157F17C2250/0636F17C2260/036F17C2270/0149
    • A safety device is provided for completely sealing off an underground liquified gas storage cavity when a dangerous situation arises, whereby all links between the storage cavity and the surface, including the vent link between the gas phase and the surface can be closed off by forming water plugs in the storage cavity. The water plugs are created automatically from existing reserves of water in the underground cavity. Maximum overall safety is achieved by not installing any important equipment in the underground storage cavity, by standardizing all links other than the vent link, and by minimizing the number of functional links required. Every standard link connects the gaseous or liquid phase of the gas to the surface via a side tube running downwards into a well containing water linked to the main tube which returns to the surface. The end of the main tube comprises a shut-off valve which causes the sealing water plug to be formed in both tubes once it is opened automatically or deliberately via an external signal.
    • PCT No.PCT / FR91 / 00860 Sec。 371日期:1992年7月15日 102(e)日期1992年7月15日PCT 1991年11月4日PCT PCT。 第WO92 / 08662号公报 日期为1992年5月29日。当出现危险情况时,提供一种完全密封地下液化气体储存腔的安全装置,从而存储腔与表面之间的所有连接(包括气相和表面之间的通气连接) 通过在储存腔中形成水塞来封闭。 水塞自动从地下腔中的现有储备水中产生。 通过不将任何重要的设备安装在地下储存空间内,通过标准化通风口连接以外的所有连接,并尽可能减少所需的功能连接数来实现最大的整体安全。 每个标准链路将气体的气态或液相通过一个向下流动的侧管连接到表面,该侧管连接到主管的水,该主管返回到表面。 主管的端部包括截止阀,该截止阀一旦通过外部信号自动或有意地打开,则使密封水塞形成在两个管中。