Abstract:
The invention relates to a method for compacting insulating bulk material (S), comprising the steps: filling insulating bulk material (S) into an insulating space (I) of a container (1) to be insulated, evacuating the air from the insulating space (I) to produce a negative pressure in the insulating space (I) relative to the pressure in an exterior space (A) surrounding the container (1), causing the container (1) to vibrate in order to compact the insulating bulk material (S), and supplying the insulating bulk material (S) present in the insulating space (I) with a gas (G) to compact the insulating bulk material (S).
Abstract:
L'invention concerne un chapeau de protection (20) d'une bouteille de gaz comportant : - une embase (40), et - une coque annulaire (42) s'étendant depuis l'extrémité radiale de l'embase (40) et présentant une première hauteur, - la coque annulaire (42) présentant au moins une ouverture latérale (44-45), - la coque annulaire (42) comportant une structure alvéolaire formée par deux parois (50-51) reliées par des cloisons internes (52) s'étendant radialement entre les parois (50-51), - la coque annulaire (42) présentant une seconde hauteur, supérieure à la première hauteur, formant au moins un pilier (48) au niveau d'une extrémité terminale débouchant sur l'au moins une ouverture latérale (44-45), - la cloison interne (52) de la structure alvéolaire la plus proche du pilier (48) s'étendant sur une partie seulement de la première hauteur (h1) de la coque annulaire (42).
Abstract:
The invention relates to a gas distribution tap (1) comprising a base (2) and an internal gas pressure regulating system (20, 21, 22). A cap (12) surmounts the base (2), said cap (12) being movable with respect to the base (2) between at least a closed position in which the cap (12) pushes the pressure regulating valve (20) of the internal gas pressure regulating system (20, 21, 22) back against the valve seat (21) so as to completely shut off the pressure regulating orifice (22) and prevent any regulation of the gas, and a pressure regulating position in which the cap (12) allows the pressure regulating valve (20) to move away from the valve seat (21) by a given distance so as to uncover the pressure regulating orifice (22) and allow a reduction in pressure of the gas between the valve (20) and the valve seat (21). An elastic element (13) pushes elastically on the cap (12) in a direction that tends to move it away from the base (2) in order to cause it to switch from the closed position to the pressure regulating position. Gas container (30) equipped with such a tap (1) and use thereof for distributing the gas, notably oxygen.
Abstract:
The invention relates to a valve for a pressurized fluid cylinder comprising a draw-off circuit (3, 11), a data-acquisition, -storage and -processing member (7), at least one display (8), and a pressure sensor (10) for measuring the pressure within the storage space of a fluid cylinder (2) connected to the valve (1). When the variation of the signal representing the fluid pressure measured by the pressure sensor (10) is greater than a specific draw-off threshold, the data-acquisition, -storage and -processing member (7) is designed to detect the drawing-off of gas and, in response, to control the displaying on the display (8) of at least one item of information concerning the draw-off.
Abstract:
The invention relates to an assembly that includes a cryogenic fluid vessel of a space vehicle, and a thermal protection system for a cryogenic fluid vessel of a space vehicle (1), including: a shell (3) suitable for surrounding the cryogenic fluid vessel, the shell (3) being sized such as to accommodate an inner space (21) between the shell (3) and the vessel; and means (35, 36) for injecting a spray of a heat-transfer fluid into said inner space (21), characterised in that said heat-transfer fluid is injected into the inner space (21) in liquid state, at a temperature that is suitable for allowing the heat-transfer fluid to capture the heat flux reaching the cryogenic fluid vessel, causing said heat-transfer fluid to vaporise, the shell (3) including a plurality of openings suitable for allowing the heat-transfer fluid in gaseous form to exit said inner space (21) through the shell (3).
Abstract:
The present invention relates to a high-pressure fluid storage system and a construction method therefor. The high-pressure fluid storage system according to the present invention includes: a first horizontal tunnel formed at a predetermined depth in the underground in a lateral direction; a cavern formed by excavating the ground downwardly from the first horizontal tunnel; and a fluid storage reservoir including a tank body for storing fluid and inserted into the cavern; a backfill layer formed by a backfill material filled between the tank body and an inner wall of the cavern; and a first plug formed by filling the backfill material into the first horizontal tunnel to close an upper portion of the cavern.
Abstract:
An internal leak limiter-valve for a pressurized-gas container, which is entirely made of a flexible material and characterized in that it consists of a main body (1) and a movable part (2) which together constitute a single component, the main body (1) having a flattened base (3) that has circumferential vent ports (6), through which the gas flows from the container to the appliance and is either adhered on the container by means of a suitable adhesive or mounted on a support frame (7) that is manufactured from metal or other suitable material and welded or mounted on the upper part of the container (5) around its hole (4), the movable part (2) moving independently from the main body (1) due to the flexibility of the manufacturing material, allowing or restricting or blocking the flow of gas from the container (5) to the appliance or the atmosphere, in case of disconnection of the container from the appliance.