B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
B65G 5/00 (2006.01) F17C 3/00 (2006.01) F17C 13/12 (2006.01)
Patent
CA 2073877
IN THE CANADIAN PATENT & TRADEMARK OFFICE TITLE : PROCESS AND DEVICE PROVIDING TIGHTENED OPERATIONAL SAFETY FOR UNDERGROUND LIQUEFIED GAS STORAGE IN THE NAME OF : Jean-Marie DUFOURNEAUD ASSIGNEE : Jean-Marie DUFOURNEAUD ABSTRACT OF THE DISCLOSURE A safety device is provided for completely sealing off an underground liquified gas store 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 said underground cavity. Maximum overall safety is achieved by not installing any important equipment in the underground store, 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 (e.g., 22) running downwards into a well (24) containing water linked to the main tube (21) which returns to the surface. The end of the main tube comprises a shut-off valve (23) which causes the sealing water plug to be formed in both tubes (22 and 21) once it is opened automatically or deliberately via an external signal. FIGURE 3
Dufourneaud Jean-Marie
Mccarthy Tetrault Llp
LandOfFree
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