| 摘要 |
Containers for storing fluids, especially carbon dioxide, under pressure comprise a tubular component (made of a deformable material capable of at least 7% elongation before fracture) which is preferably closed by a top plug with a filling/emptying device (and any end plug) by crimping open end(s) of the component over a circumferential shoulder on the plug(s). A primary pressure relief device comprising a poppet with a piston section, a return spring and a control (exit) orifice tolerates and ejects dirt, prevents the formation of solid phase material and vents the contents in brief spurts so as to minimize loss. Desirably, a narrow helical conduit connects the primary pressure relief device to the container interior and, by being in thermal contact with the tubular component, chills the contents during venting so as to minimize loss. One or more secondary pressure relief devices, such as bursting discs, may also be incorporated to vent substantially the whole contents in the event that the primary pressure relief device fails to maintain the internal pressure below a safe predetermined level. The construction allows the fitting of alternative adaptor assemblies for various uses and lends itself to automatic assembly. The use of a heat storage substance is also disclosed.
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