Abstract:
A trailer with piping and accessories capable of maintaining the ultra high purity of a cryogenic liquid while receiving and transporting the liquid, purging an external receiver, and transferring liquid to the receiver. The trailer has a heat exchnger for vaporizing a liquid flow from its liquid container into warmed gas. The gas is used for purging an external receiver and for pressurizing the liquid container sufficiently to transfer liquid into the purged receiver. The trailer piping allows purging of and then transferring to the receiver without opening any connections. The number of welded surfaces in the trailer capable of trapping and generating contaminants are reduced, particularly the number of welded penetrations of the liquid container.
Abstract:
Method and apparatus for preventing loss of liquid cryogen due to heat infiltration into the cryogen stored in a dewar. At least one transient heat shield disposed in the vacuum space between the inner and outer vessels of the dewar in heat exchange with normal vapor withdrawal means of the stored cryogen intercepts heat transfer into the stored cryogen.
Abstract:
A filament wound pressure vessel or tank includes a thin metal inner liner of 1020 steel wrapped by epoxy-resin-coated fiberglass filament windings. The coefficients of thermal expansion of the windings and the inner liner are approximately equal. The filament windings are clad in a thick layer of polyurethane foam insulation. The foam-insulated cryogenic tanks containing cryogenic fluid are mounted in the front of a refrigerated transport container cooled by the release of the cryogenic fluid coolants thereinto.
Abstract:
A multi-layered vessel which includes a multi-layered generally cylindrical shell and at least one multi-layered generally hemispherical head of less thickness than the shell. The head has a main section and discontinuity neutralizing portion adjacent the shell. Each layer of the head main section and the discontinuity neutralizing portion have gores with substantially equal radius of curvature. The discontinuity neutralizing portion gores have a different center of curvature than the gores of the head main section.
Abstract:
A pressure-resistant container for liquids, gases, or loose material is composed of at least two part-cylindrical shells which have mutually parallel axes and intersect each other so as to form troughs between the tops and bottom thereof, respectively. In accordance with a preferred embodiment, the ends of the part-cylindrical shells are joined at their edges along the height of the longitudinal troughs formed between the tops and bottoms of the part-cylindrical shells of the container by their intersection, whereby a central shell element forms tunnels respectively interconnecting the tops and bottoms of the part-cylindrical shells.
Abstract:
The improved double-walled transport container for transporting liquids and gases which have to be protected against heating or cooling and against mechanical shock, has a fully insulated inner vessel and an outer vessel comprising an upper shell, a lower shell and two dished endwalls. A shock-absorbing and thermally insulating layer is provided between the outer and the inner vessel, and support flanges extend over the entire length of the outer vessel. The sum of the distances between the endwalls of the inner and the outer vessel is at least equal to the distance of the crest of the arch from the edge of an endwall of the outer vessel.
Abstract:
A system for producing, storing and distributing carbon dioxide as a multi-phasic product at triple-point temperature and pressure conditions. The system constitutes a method of storing and transporting carbon dioxide as a multi-phasic admixture of liquid and solid fractions in proportions enabling the carbon dioxide mass to be processed as a pumpable liquid or semiliquid; and steps of the method include providing the multi-phasic admixture, and confining the same within a container therefor after which the confined mass may be transported to a remote destination while being maintained in multi-phasic condition. In producing the admixture, liquid carbon dioxide is expanded toward the triple-point pressure while removing vapor to control the ratio of solids formation.