Abstract:
The invention relates to a tank for a cryogenic liquid gas, in particular for LNG; that is, for liquid natural gas or liquid methane. The invention further relates to an aircraft having such a tank and to a method for producing such a tank. A tank is produced, which comprises an outer, dimensionally stable structure and a pressure-resistant, cold-resistant film which is able to suitably capture an overpressure resulting from boil-off gas in the tank. The suitably flexible film is coiled so that a hose-shaped chamber or a hose-like sleeve is thus formed. With the aid of the film, a sufficiently pressure-resistant, cold-resistant, light tank for storing cryogenic liquid gas can be provided according to the invention, which can also be subsequently installed in an aircraft primarily due to the flexibility of the film.
Abstract:
An installation for storing liquified gas in a cavity defined by rock or an outer shell (10) made of concrete, comprising a tank (2) for the gas. The tank (2) which is made of concrete and possibly thermally insulated, is entirely or partly surrounded by a mass (5) filling a void between the tank (2) and the rock or the concrete shell (10). The mass (5) may in itself be sealing, i.e. of low permeability, and may be combined with at least one sealing membrane (13) within the mass (5), or outside or inside the mass. The installation may be located entirely or partly in loose soil (8) which entirely or partly surrounds the shell (10), or be located above ground level.
Abstract:
The invention is related to an arrangement for connecting at least one double-walled pipe of stainless steel to a LNG tank (1) having an inner shell (2) of stainless steel and an outer shell (3) spaced at a distance from the inner shell (2), the said inner and outer shells defining an isolation space (14) therebetween. The at least one double-walled pipe comprises a common outer wall (9) and at least one inner pipe (8). The outer wall (9) of the pipe is connected to the inner shell (2) of the tank in such a way that the said outer wall (9) and/or a pipe fitting (10) of cold resistant material between the said inner shell (2) and the outer wall (9) is arranged to compensate for changes in the length of the outer wall (9) of the pipe and/or of the pipe fitting (10) due to temperature differences between the outer wall (9) of the pipe and the inner shell (2) of the tank.
Abstract:
The invention regards a tank for storing of fluid at low temperature of insulated self carrying plate structure, where the plates comprises a sandwich structure, comprising two surface sheets of a metal or a material with similar properties and a core material with properties allowing for the variation of thermal deformation between the inner and outer surface sheets, which core material also provides for at least partly the insulation of the tank and which provides at least partly the necessary stiffness and strength of the wall. The invention also regard support means for the tank, a sandwich structure for use in a tank, and a method for producing the tank.
Abstract:
The invention regards a tank for storing of fluid at low temperature of insulated self carrying plate structure, where the plates comprises a sandwich structure, comprising two surface sheets of a metal or a material with similar properties and a core material with properties allowing for the variation of thermal deformation between the inner and outer surface sheets, which core material also provides for at least partly the insulation of the tank and which provides at least partly the necessary stiffness and strength of the wall. The invention also regard support means for the tank, a sandwich structure for use in a tank, and a method for producing the tank.
Abstract:
A method and apparatus for transporting or storing compressed natural gas in a marine environment includes the providing of a heavy lift vessel that has a weather deck area that is bounded by forward and aft, port and starboard sides or walls that extend above the weather deck. A buoyant module is provided that contains a pipeline, the pipeline including multiple bends and multiple layers. The pipeline is supported at differing elevations within the module interior so that the various sections of the pipeline are preferably spaced apart to enable visual and/or remote exterior inspection (e.g. video, radar, x-ray, acoustic, or other exterior, non-destructive test) of the outer surface of the pipeline. The pipeline has a continuous bore that is piggable for internal inspections. The module can be transferred to a heavy lift vessel or can be used as flotation. The combination of heavy lift vessel and module can travel to a selected location for loading and unloading compressed natural gas. The module can be placed in a marine environment to serve as a storage facility for compressed natural gas.
Abstract:
A radiation detector having an evacuated envelope (35), a radiation detector (34) on a cold finger support in the evacuated space, a closed cycle gas cooling system (3, 45) to cool the cold finger to provide cryogenic operation of the radiation detector, and a getter (5, 16) in the evacuated space to maintain an evacuated condition. The evacuated envelope includes a radiation window (25). The radiation detector is preferably an X-ray detector employed in an energy dispersive spectrometry system. The evacuated space is preferably held at a pressure of less than about 1 mTorr to achieve molecular flow of remaining gas molecules, minimizing parasitic heat input. The closed cycle gas cooling system employs compressed refrigerant, which is precooled in a counterflow heat exchanger (103) and allowed to expand in proximity to the cold finger, thus absorbing heat and maintaining cryogenic temperatures. A getter material, preferably activated carbon, is provided to absorb gasses and maintain the low pressure during operation. A vibration effect attenuation system (8) is provided to reduce effect of cooler induced reduction in detector resolution.
Abstract:
Die Erfindung betrifft ein Verfahren zum Verdichten von Isolierschüttgut (S), aufweisend die Schritte: Einfüllen von Isolierschüttgut (S) in einen Isolierraum (I) eines zu isolierenden Behälters (1), Evakuieren des Isolierraumes (I) zur Herstellung eines Unterdrucks im Isolierraum (I) relativ zu dem Druck in einem den Behälter (1) umgebenden Außenraum (A), Versetzen des Behälters (1) in eine Vibration zum Verdichten des Isolierschüttguts (S), und Beaufschlagen des im Isolierraum (I) befindlichen Isolierschüttguts (S) mit einem Gas (G) zum Verdichten des Isolierschüttguts (S).
Abstract:
The invention regards a tank for storing of fluid at very low temperature, as LNG, which tank comprises external plates, forming roof, side walls and floor, and an internal cell structure with fluid communication between all the cells in the cell structure at floor level of the tank. At least a part of the external plate comprises a layered structure and where the internal cell structure is formed as self equilibrating support and or anchoring for the external plates. The invention also regards a cell structure for use in a tank for storing fluid.