Abstract:
A gas accumulator (10) with an inner gas accumulator bag (29) which forms a gas accumulator space (12) which can be filled with gas, and with an outer membrane (1) which surrounds the gas accumulator bag (29) in some regions, wherein the gas accumulator bag (29) and the outer membrane (1) are fixed in relation to a base surface (4), wherein the outer side of the gas accumulator bag (29) has at least one tab (20, 20', 20'', 20''', 20'''', 20''''') which is at least partially clamped together with an edge region of the outer membrane (1), and wherein the combined clamping is fixed in relation to the base surface (4)
Abstract:
A resilient multi-layer container (10) is configured to receive a quantity of hyperpolarized gas and includes a wall with at least two layers (41,44), a first layer with a surface which minimizes contact-induced spin-relaxation and second layer which, e.g., is substantially impermeable to oxygen. The container is especially suitable for collecting and transporting 3 He. The resilient container can be formed of material layers which are concurrently responsive to pressure such as polymers, deuterated polymers, or metallic films. The container can include a capillary stem (26s) and/or a port or valve isolation means (31i) to inhibit the flow of gas from the main volume of the container during transport. The resilient container can be configured to directly deliver the hyperpolarized noble gas to a target interface by deflating or collapsing the inflated resilient container.
Abstract:
According to a previously known method for filling a container with liquid gas from a storage tank, liquid gas is pumped from a storage tank via a liquid feed line into the container to be filled, while at the same time gas is removed from the container in the gaseous state, is cooled in a heat exchanger disposed inside the storage tank, thereby liquefying it, and is fed to the liquid feed line via a venturi nozzle. When a venturi nozzle is used, it is possible that the gas fed to the liquid is not completely liquefied but is partially present in the gaseous state (cavitation), thereby complicating delivery of the liquid gas into the container to be filled. According to the invention, the delivery device used for filling the container is used to increase the pressure inside the container to be filled and thus also in the gas line through which the gaseous gas is fed from the container to a heat exchanger. The gas that is cooled and at least partially liquefied in the heat exchanger is fed to the liquid feed line on the suction end of the delivery device. In an embodiment, the differential pressure between the pressure in the container to be filled and the pressure in the storage container is measured and is used to control a stop valve which allows the at least partially liquefied gas to be fed to the container only once a certain minimum gas pressure is reached. The inventive method allows to reduce cavitations to such a degree that delivery of the liquid gas is no longer impaired and removes the need for a venturi nozzle.
Abstract:
A shaped article is capable of at least one of containing and delivering a cryogenic fluid. The article has a porous structure that restricts the passage of cryogenic fluid in the liquid phase while permitting the passage of cryogenic fluid in the gaseous phase. The article may be in the form of a tube or container. The article permits a liquid cryogen to be transported to a specific site, and then cool the site by means of conduction from the cold article and convection of cold gas, the phase change of the eveporating liquid greatly enhancing the heat loss.
Abstract:
A compact portable transport unit (10) for shipping hyperpolarized noble gases and shielding same from electromagnetic interference and/or external magnetic fields includes a means for shifting the resonance frequency of the hyperpolarized gas outside the bandwidth of typical frequencies associated with prevalent time-dependent fields produced by electrical sources. Preferably the transport unit (10) includes a magnetic holding field which is generated from a solenoid (20) in the transport unit. The solenoid (20) includes a plurality of coil segments (21, 22, 23) and is sized and configured to receive the gas chamber of a container (30). The gas container (30) is configured with a valve, a spherical body, and an extending capillary stem (35) between the valve and the body. The gas container or hyperpolarized product container (30) can also be formed as a resilient bag (30b). The distribution method includes positioning a multi-bolus container (30) within the transport unit (10) to shield it and transporting same to a second site remote from the first site and subsequently dispensing into smaller patient sized formulations which can be transported (shielded) in another transport unit (10) to yet another site.
Abstract:
The invention concerns a system comprising a device (11) for transferring the product between the ship and the installation, which is supported at one end by a support structure and whereof the other end is capable of being connected to the ship's manifold device (8). The system is characterised in that the support structure comprises a berth (5) the ship, a boom (8) carrying a transfer pipe (10), and mounted on the berth (5), rotatable about a vertical axis above the ship, and a deformable transfer device (11) one end of which is connected to the pipe (10), while the other end is mobile between a stowed position advantageously proximate to the boom (8) and a position for connection to the ship's manifold device (15). The invention is useful for transferring liquefied natural gas.
Abstract:
L'invention se rapporte à un procédé de fabrication d'un réservoir (1) pour fluides sous pression comprenant deux compartiments (8,10). Selon l'invention, le procédé comprend les étapes suivantes :
montage d'un mandrin de bobinage ; mise en place d'une paroi métallique (4) sur le mandrin, la paroi (4) se présentant sous forme repliée ; réalisation par bobinage de la paroi extérieure (2) par bobinage autour d'un ensemble comprenant le mandrin et la paroi repliée (4) ; polymérisation de la paroi (2) et démontage du mandrin ; déploiement de la paroi métallique (2), de façon à obtenir un premier compartiment (8) à l'intérieur de la paroi métallique (4), ainsi qu'un second compartiment (10) entre les deux parois (2,4).
L'invention s'applique également à un réservoir (1) tel que celui obtenu par le procédé décrit ci-dessus. Application au domaine des lanceurs et des fusées.