Abstract:
A system achieving a high density of transported natural gas by compressing it to high pressures typically above 5 MPa to transport the gas in a modified composition that permits a very low compressibility factor at near ambient temperature either above or below. This reduces greatly the size of the cooling systems that are required. In some cases cooling of the compressed gas may be achieved in a simple heat exchanger cooled by air or water. The transport of the gas takes place in self propelled ships or non-self propelled barges fitted with a cargo containment system (34) capable of storing the cargo at high pressures, typically above 5 MPa and usually not above 25 MPa. The transport vessel (30) may carry a store of higher molecular weight gases (c2 through c7) that when mixed with the incoming cargo results in a molecular weight of the mixture of at least 22 and possibly as high as 28.
Abstract:
La présente invention concerne une installation de stockage de gaz sous pression avec un réservoir (6) qui est agencé pour stocker des gaz à une pression interne du réservoir, une membrane (15), étanche à la pression, disposée sur la paroi interne du réservoir, une paroi structurelle (16) disposée à l'extérieur du réservoir, un dispositif de contrôle de fissures (29) et une installation de drainage (17) intégrés à la paroi structurelle (16). Le dispositif de contrôle de fissures comporte un certain nombre d'éléments de contrôle de fissures (29), qui sont construits et disposés de sorte que des fissures formées dans la paroi structurelle s'étendent selon des directions préférentielles de la membrane (15) vers l'installation de drainage (17), et en ce que l'installation de drainage (17) est formée perméable aux gaz au moins dans des zones de perméabilité (34) disposées dans la direction préférentielle des fissures.
Abstract:
The present invention relates to a device for storing gas under pressure comprising an inner cylindrical pressure vessel (1), the pressure vessel (1) comprising pipe connection (7). According to the present invention, the device is characterized in that the inner cylindrical pressure vessel (1) is arranged inside an outer vessel (3), whereby a substantially annular space (2) is formed between the inner pressure vessel (1) and the outer vessel (3), wherein the annular space (2) between the inner pressure vessel (1) and the outer vessel (3) is filled with a fluid, the outer vessel (3) further comprising venting means (5) at or in the vicinity of the highest point (4, 6) of the outer vessel (3).
Abstract:
A gas cartridge loading mechanism has a sensor member (102) movable toward a collar retaining portion (55) and mounted to undergo pivotal movement between a locked position and an unlocked position (P7), and a stopper (43) configured to prevent movement of the sensor member when the sensor member is disposed in the locked position and to allow movement of the sensor member when the sensor member is disposed in the unlocked position. The sensor member is configured to move in the locked position when a gas cartridge (21) is set with improper orientation, and to move in the unlocked position when the gas cartridge is set with proper orientation.
Abstract:
Un chariot déplaçable à la main pour transporter des charges à un dispositif de transport (1) disposé pour transporter des charges et un montage de roues (2) relié au dispositif de transport pour supporter une première surface de support . Le dispositif de transport dispose à son extrémité d'une poignée (7) pour manier le chariot. En outre, le montage de roues et le dispositif de transport disposent de moyens de guidage fonctionnant conjointement (10, 14), agencés de sorte que le montage de roues peut être déplacé en le guidant par rapport au dispositif de transport dans la direction allant vers et s'éloignant de ladite proignée. Il y a également des moyens pour fixer le montage de roues et le dispositif de transport l'un à l'autre. Dans une position appropriée pour déplacer le chariot sur la première surface de support, le montage des roues (2) est déplaçable par rapport au dispositif de transport (1) dans la région de la poignée (7), aprés avoir desserré lesdits moyens de fixation (25), de façon à faire tenir le montage des roues (2) avec ses roues (15) dans une position fixée sur la première surface de support, le dispositif de transport avec les charges peut être poussé sur une deuxième surface de support (26) se trouvant à un niveau supérieur au premier. Le montage de roues (2) peut être amené à supporter la deuxième surface de support en l'enlevant complétement du dispositif de transport et/ou en le pivotant vers le haut au-delà.
Abstract:
The invention concerns a ship (1) comprising a hull (6) with an uppermost watertight deck (3), a gas fueled engine (9) for driving a propulsion means, the gas fueled engine includes a gas supply system, the ship further comprises pressure vessels (7) for storing compressed gas and fuel piping for connecting the pressure vessels to the gas supply system, the pressure vessels are cylindrical and have a connection end and a support end. In accordance with the invention the pressure vessels are located in a tank storage room (17) that is below the uppermost watertight deck, the connection end of the tank comprises fixing means to fix the connection end gas-tight against a separation wall (15) between the tank storage room and a tank connection space (14) and the support end comprises a support that is mounted in a linear bearing located in the tank storage room.
Abstract:
The present invention relates to an installation for storing gas under pressure with a reservoir (6) which is designed to store gases at an internal pressure of the reservoir, a pressure tight membrane (15) arranged on the internal wall of the reservoir, a structural wall (16) arranged on the outside of the reservoir, a crack control device (29) and a drainage installation (17) which are incorporated into the structural wall (16). The crack control device comprises a certain number of crack control elements (29) which are constructed and arranged in such a way that cracks formed in the structural wall extend in preferential directions from the membrane (15) toward the drainage installation (17), and the drainage installation (17) is formed so that it is permeable to gases at least in zones (34) of permeability which are located in the preferential direction of the cracks.
Abstract:
A system achieving a high density of transported natural gas by compressing it to high pressures typically above 5 MPa to transport the gas in a modified composition that permits a very low compressibility factor at near ambient temperature either above or below. This reduces greatly the size of the cooling systems that are required. In some cases cooling of the compressed gas may be achieved in a simple heat exchanger cooled by air or water. The transport of the gas takes place in self propelled ships or non-self propelled barges fitted with a cargo containment system (34) capable of storing the cargo at high pressures, typically above 5 MPa and usually not above 25 MPa. The transport vessel (30) may carry a store of higher molecular weight gases (c2 through c7) that when mixed with the incoming cargo results in a molecular weight of the mixture of at least 22 and possibly as high as 28.
Abstract:
Device for storing and releasing fluids at nearly constant pressure, the fluids including a gas and a liquid, includes an assembly of substantially identical reservoirs (1), where the reservoirs include: a portion containing the gas (G) and a portion containing the liquid (L), an element (23) of separation between the gas and the liquid in the reservoir (1), an inlet orifice (36) and an outlet orifice (36) for the gas, an inlet orifice (35) and an outlet orifice (35) for the liquid. The reservoirs (1) have a cylindrical outer envelope (100) made up of at least one metal tube (101) of the type of those used for gas pipelines and oil pipelines, for which: the external diameter is more than 32 inches (813 mm); and the ratio of the length thereof to the outer diameter thereof is greater than 8.