| 摘要 |
<p>Containers for storing fluids, especially carbon dioxide, under pressure in which a tubular component (1) made of a deformable material capable of at least 7 % elongation before fracture is preferably closed on a top plug (2) with a filling/emptying device (and any end plug) by crimping the open end(s) of the component over a circumferential shoulder on the plug(s). A primary pressure relief device comprising a poppet (14) with a piston section, a return spring (15) and a control orifice (19), tolerates and ejects dirt, prevents the formation of solide phase material and vents the contents in brief spurts so as to minimise loss. Desirably, a narrow helical conduit (7) 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 further minimise 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 fitment of alternative adaptor assemblies (see figure 2) for various uses and lends itself to automatic assembly. The use of a heat storage substance is also disclosed.</p> |
