摘要:
L'invention concerne un procédé et un dispositif de vidange d'une enceinte d'engin spatial contenant une composition gazeuse sous une pression P1 supérieure à celle P2 régnant dans un environnement extérieur à l'engin spatial dans l'Espace, l'enceinte étant reliée à cet environnement extérieur de l'Espace par au moins une conduite (14) d'évacuation. La composition gazeuse circulant dans chaque conduite (14) d'évacuation traverse au moins un dispositif (20, 21) de détente initiale présentant au moins un étranglement de section à la sortie duquel la pression de la composition gazeuse se trouve à une troisième valeur Pi intermédiaire entre la première pression P1 dans l'enceinte et la deuxième pression P2 de l'environnement extérieur.
摘要:
Eine Verfahren zum Betreiben einer Drucktankvorrichtung umfassend einen Drucktank (1), einen Hochdruckeingang (2) zum Drucktank (1) und einen Niederdruckausgang (3) vom Drucktank (1), wobei im Niederdruckausgang (3) zumindest ein elektromechanisches Absperrventil (4) mit einem Absperrventilverschlusskörper und einem Absperrventilsitz angeordnet ist, wobei, zumindest am Beginn einer Betankung der Drucktankvorrichtung über den Hochdruckeingang (2), der Absperrventilverschlusskörper auf den Absperrventilsitz eine höhere Druckkraft aufbringt, als während einem Ruhebetrieb der Drucktankvorrichtung und eine solche Drucktankvorrichtung.
摘要:
The invention relates to a method for producing a pressurised container for receiving and storing cryogenic fluids, consisting of a metal container forming a liner (12) and a sheath (14) which is applied to the liner and consists of fibre-reinforced plastic, wherein the liner (12) is formed from a non-magnetic metal alloy having a fully austenitic, cubic-face-centred grid structure and is cold-stretched by up to approximately 25%, in particular by less than approximately 15%, to increase the elastic range before the sheath consisting of fibre-reinforced plastic is applied.
摘要:
The invention relates to a pressure vessel for receiving and storing cryogenic fluids, in particular cryogenic liquids, said pressure vessel being composed of a metal vessel that forms a liner (12) and a reinforcement (14) made of fiber-reinforced plastic applied to the liner (12), wherein the liner (12) is made of a non-magnetic metal alloy having a fully austenitic face-centered cubic lattice structure and is subjected to a nitriding treatment by means of nitrogen or ammonia in order to expand the elastic range before the reinforcement (14) made of fiber-reinforced plastic is applied. The invention further relates to methods for producing said pressure vessel and to the use of said pressure vessel.
摘要:
The invention relates to a tank for receiving, storing and discharging liquids and/or viscous substances, in particular fuel or propellant or drinking water, having a casing (12) and at least one baffle plate (16) which is arranged in an interior (14) of the tank (10), on the inner side (18) of the casing (12), and has one end (20) directed towards an outlet opening (22) of the tank (10), and extends into a region (24) which is adjacent to or adjoins the outlet opening (22) of the tank (10), characterized in that a flexible element (32) is arranged between the at least one baffle plate (16) and the inner side (18) of the casing (12) in order to cover (over) a gap, corner, interstice, or similar interspace (28) formed between the at least one baffle plate (16) and the inner side (18) of the casing (12), and also relates to a use of the same.
摘要:
A pressure container manufacturing method by forming an outer shell of a fiber reinforced composite material on a periphery of a liner having a cylindrical portion, dome portions connected to both ends of the cylindrical portion, and a mouth piece disposed on one top of the dome portions, has: forming a body on the periphery by braiding fiber bundles provided from bobbins of a braider disposed in a circumferential direction of the liner, while moving the liner in an axial direction, wherein when body formation reaches a root portion of the mouth piece, a movement in a first direction of the liner is stopped, each bobbin is rotated approximately a half-turn in the circumferential direction, and thereafter formation of the body is continued while moving the liner in a second direction opposite to the first direction; and curing a resin impregnated in the fiber bundles, to form an outer shell.
摘要:
Disclosed is an apparatus, which is capable of, even under a microgravity environment, determining a volume of the liquid, in a simple and accurate manner. The apparatus comprises a vessel adapted to contain therein a liquid, heating means provided on a wall surface of the vessel to heat the liquid contained in the vessel, temperature measuring means provided adjacent to the heating means to measure a temperature change occurring due to the heating by the heating means, and processing means operable, based on the temperature change measured by the temperature measuring means, to calculate a volume of the liquid contained in the vessel.
摘要:
Cryogenic tank intended for containing a cryogenic fluid, in particular a space launcher tank intended to contain a cryogenic propellant, comprising a wall (1 ) defining a storage volume for the cryogenic fluid, characterized in that it includes at least one partition (2) located in the storage volume, said partition (2) defining an upper volume (VS) and a lower volume (Vl) for the fluid in the tank (1) communicating via at least one opening (3) formed in the partition (2), in order, on the one hand, to allow the liquid to flow under gravity from the upper volume (VS) into the lower volume (Vl) and, on the other hand, to prevent the fluid from rising from the lower volume (Vl) into the upper volume (VS) under the action of acceleration forces.