998results about "Vessel manufacturing" patented technology

The invention discloses an underground gas storage prestress lining structure and a construction method, and relates to the technical field of underground gas storage, the underground gas storage prestress lining structure comprises a lining layer formed by concrete pouring and internally provided with prestress steel bars; the sealing layer is arranged on the inner side of the lining layer and defines a gas storage chamber; the sliding layer is arranged between the lining layer and the sealing layer. The arrangement of the prestressed reinforcements can counteract part of internal pressure of the gas storage, so that the problem of concrete cracking is relieved. The lining layer is divided into the first lining layer and the second lining layer, the tensioning notch is reserved in the bottom of the first lining layer and provides sufficient tensioning space for the prestressed steel bars, the tensioning effect of the prestressed steel bars is ensured, the second lining layer is formed in the tensioning notch in a pouring mode after the prestressed steel bars are tensioned, and the integrity of the lining layer is ensured. After the sealing layer is constructed, grouting is conducted on the gap between the lining layer and the sliding layer, it is guaranteed that grouting is compact and complete, stress concentration is reduced, and the problem of concrete cracking is further relieved.

Membrane tank for containment of fluids at temperature that can differ significantly from ambient temperature, for example for containing a cryogenic fluid, wherein the membrane tank comprises, in direction from an inner containment volume: a primary membrane that is fluid tight, facing the contained fluid in operation and functioning as the primary fluid barrier, an insulation layer, surrounding the membrane on the outside, an outer structure, such as a ship hull or bulkhead or other structure, wherein the outer structure supports the insulation layer and primary membrane inside and carries the resulting forces thereby, and at least one opening for loading and unloading of fluid, and an optional secondary membrane if the outer structure is a steel structure becoming brittle at cryogenic temperature, such as a ship hull outer structure, the secondary membrane dividing the insulation layer into an inner insulation between the primary and secondary membranes and an outer insulation between the secondary membrane and the outer structure, wherein the primary membrane comprises areas of flat, curved or double curved shape and a corrugation in between said areas, wherein said areas are fastened to the underlaying insulation and the corrugations are taking up thermally induced strain. The membrane tank is distinguished in that it further comprises a coupling part for connecting a vacuum pump operatively to the whole insulation layer or the inner insulation layer, for enabling vacuum in the whole insulation layer or the inner insulation layer, during loading, containment and unloading of cryogenic fluid.

Disclosed is a method of fastening a cap of a container, the method including: specifying a screw thread engagement point of a cap and a neck ring of a container; and aligning the engagement point with a fastening start position of the cap and fastening the cap to the neck ring, in which the specifying of the engagement point includes detecting the engagement point by rotating the cap in a reverse direction in a state where the cap is seated on the neck ring.

A production control system for a hydrogen storage tank includes: an operating unit, a design terminal, and a processor. The processor may be communicatively connected to the operating unit and the design terminal, respectively. The design terminal may be configured to operate a finite element simulation command stored in a storage unit. The processor may be configured to obtain the target laying parameter from the design terminal, generate an operation command based on the target laying parameter, send the operation command to the winding mechanism; and determine whether to generate an optimization command. In response to a determination of generating the optimization command, the optimization command may be generating and sent to at least one of the operating unit, the monitoring unit, and the design terminal.

An underground storage system for storing fluid includes a hole having a bottom, a support element including at least one opening able to receive a joining element, at least one reservoir having a longitudinal axis, a bottom end and a top end, a first closure able to close the reservoir at its bottom end, and a second closure able to close the reservoir at its top end. The top end is able to be joined to the support element via the joining element such that the reservoir is hung inside the hole and such that an axial clearance able to absorb axial thermal expansion of the reservoir remains between the first closure and the bottom.

The present invention relates to a liquefied gas storage facility comprising: a load support structure having a bottom wall and a vertical load support wall, the vertical load support wall being composed of N vertical load support panels; and a can comprising a bottom wall and a vertical wall, the bottom wall comprising a plurality of angular sectors, the corrugated sealing membrane of each angular sector having a first corrugation, the corrugated sealing membrane of each angular sector comprising a plurality of metal plates arranged to form a loop portion, the loop portion comprises a set of complete metal sheets in which the total number of first corrugations present on the loop portion increases in the direction of the vertical wall, said total number increasing only per M consecutive loop portions, where M is a natural integer greater than or equal to 2.

The present invention discloses a solid-state hydrogen storage and discharge device with enhanced heat exchange and easy loading and unloading, which has the following features: a method of enhancing heat exchange by adopting a fluid jacket layer outside the container shell and an external and internal heat exchange jacket core of a central axis return pipe, and rapidly introducing or removing heat from the entire surface of the hydrogen storage filler through heat conduction of a heat transfer metal tray; processing a plurality of longitudinal ventilation holes on the heat transfer metal tray and the hydrogen storage filler to reduce airflow resistance, greatly increase the specific surface area of ​​the hydrogen storage filler, and improve the hydrogen storage rate; punching increases the expansion space capacity of the hydrogen storage alloy medium, thereby reducing the external expansion rate of the hydrogen storage medium block, reducing internal stress, and preventing it from extruding and agglomerating and failing; due to the clamping and support of the heat transfer metal trays between the layers, and the slowing of temperature rise and fall and temperature gradient, the hydrogen storage filler is not easy to break into powder, and its service life is greatly extended; the layered and discrete combination of the filler and the tray simplifies the operation of loading or pulling out the filler, and it becomes quite easy to replace the hydrogen storage filler partially or completely.

Provided in the present application are a heat-insulating system of a B-type independent liquid tank, and a ship. The heat-insulating system comprises: prefabricated heat-insulating plates arranged on the outer surface of a liquid tank, wherein the side surface of each prefabricated heat-insulating plate is of a step shape; fixing assemblies arranged at joints of the prefabricated heat-insulating plates, wherein each fixing assembly comprises a fixing column and a U-shaped fixing member, two flanges are provided at the top of each U-shaped fixing member, the flanges are arranged on the stepped side surfaces of the prefabricated heat-insulating plates, and each joint between inner heat-insulating layers is filled with an elastic heat-insulating joint-filling material; heat-insulating plug blocks, U-shaped areas of the U-shaped fixing members being filled therewith; joint heat-insulating plates, each of which is arranged in a joint between adjacent outer heat-insulating layers, each joint heat-insulating plate being connected to the prefabricated heat-insulating plates, an extending overlap layer, the U-shaped fixing member and the heat-insulating plug block; and joint protection layers, each of which is laid on the upper surface of a joint between two adjacent prefabricated heat-insulating plates. The present application simplifies the product structure, shortens the design period, simplifies the mounting process, and reduces costs.

A hydrogen tank includes a tank body, a boss connected to at least one end of the tank body and having a skirt extending radially with respect to an axial direction of the tank body, and a nozzle installed inside the tank body via the boss and configured to spray hydrogen gas at a predetermined angle with respect to the axial direction of the tank body. The nozzle includes a connector coupled to the boss, an extension portion extending from the connector parallel to the axial direction of the tank body, an inclined portion connected to an end portion of the extension portion and inclined with respect to the axial direction of the tank body, and an injection member provided at an end portion of the inclined portion.

A venting system includes a vent valve in an opening of a storage tank, a carrier gas source for supplying a carrier gas, and a Vent Mast that has a Vent Mast outlet. The Vent Mast has a vent tube and a carrier gas tube. The vent tube extends from a proximal end connected to an outlet of the vent valve to a distal end in the Vent Mast outlet. The carrier gas tube extends from a proximal end connected to the carrier gas source to a distal end in the Vent Mast outlet. Vent gas flows through a vent gas lumen formed by the vent tube and carrier gas flows through a carrier gas lumen formed by the carrier gas tube. The carrier gas dilutes the vent gas and moves the vent gas higher (and thus away) from people and ignition sources.

The invention relates to a tank (1) for pressurised gas, in particular hydrogen, comprising a composite structure (2) and a sealing shell (3), wherein the structure (2) comprises at least two rings (4), wherein each ring (4) comprises a continuous fibre reinforcement, wherein the at least two rings (4) are arranged substantially tangential to one another in at least one series extending substantially along a first direction (X), wherein a ring has a height (H), and wherein the number of series (x) substantially determines the height (x*H) of the tank (1), and wherein the number of rings (4) in a series substantially determine the width (W) of the tank (1). The invention also relates to a method for manufacturing a tank for pressurised gas.

The present application provides a corrugated plate of a liquefied gas storage tank and a liquefied gas storage tank. The corrugated plate comprises a corrugated plate body; a transverse corrugation formed on the corrugated plate body; a longitudinal corrugation formed on the corrugated plate body and comprising a first longitudinal corrugation and a second longitudinal corrugation respectively located on two opposite sides of the transverse corrugation; reinforcing ribs respectively formed on the transverse corrugation, the first longitudinal corrugation, and the second longitudinal corrugation; and an intersection portion formed at the intersection of the transverse corrugation, the first longitudinal corrugation, and the second longitudinal corrugation. The corrugated plate of the present application has high overall strength and stability. In addition, the reinforcing ribs formed on the corrugations increase the surface area of the corrugated plate in contact with liquefied gas and increase the local cross-sectional area of the corrugations, thereby further enhancing the strength and rigidity of the corrugations and the corrugated plate.

The invention relates to a pressure tank for installation in a gas-driven vehicle for storing gas and to a method for producing a pressure tank or a preform of a pressure tank, the pressure tank having a rotationally symmetrical, longitudinally extending shape which is cylindrical in the middle region and which is closed at both ends with curved pole caps, the pressure tank has a tank wall, which encloses a cavity for storing gas, and a metal coupling, so-called boss, on each pole cap, the tank wall comprising a reinforcement layer made of a fiber-reinforced plastic and an inner sealing gasket, and wherein the pressure tank has a hollow space for storing gas, and a metal coupling, so-called boss, on each pole cap, and wherein the pressure tank has a hollow space for storing gas, and wherein the pressure tank has a hollow space for storing gas, and a metal coupling, so-called boss, on each pole cap. According to the invention, there is a bushing which is connected to the boss part, the pressure ring and the spring element for sealing in such a way that the spring element is supported on the bushing and the pressure ring is pressed onto the gasket and thus the gasket is pressed in the region on the boss part.

Provided in the present invention is a double-layered liner structure comprising: a sub-structure; and a coating layer formed on top of the sub-structure.

The invention relates to a three-section type composite material air cylinder which comprises two oppositely-arranged shells, and each shell is provided with an opening end; the connecting piece is arranged between the opening ends of the two shells; wherein the opening end of the shell or the end face of the connecting piece is provided with a groove extending in the circumferential direction, and the shell and the connecting piece are bonded through the groove. The shell and the connecting piece are in surface contact connection through the double-layer bonding surface of the groove, under the condition of the same pressure intensity, the surface contact structure has a larger stress area, stress concentration can be effectively reduced, stress distribution of the connecting part is more uniform, the groove has a limiting effect, the connecting precision is ensured, and the service life of the shell is prolonged. And the air tightness of the connecting part and the reliability of the whole structure are improved.

The present invention relates to the manufacture of half-bottles which, after fitting and laser welding, will constitute thin-walled metal liners for a composite tank, type III, preferably designed to contain gases or hydrogen under high pressure, intended for land, sea, air and space transport, as well as for static storage. This liner is constituted by a main cylinder of revolution, terminated, at its ends, by an evolving, substantially hemispherical shape, gradually connecting to the cylindrical part. Fig. 7

A bottle body of the V-shaped gas storage bottle is composed of a carbon fiber layer, and one end of the bottle body is in an end socket shape; a valve seat with a composite structure is arranged at the end part of the other end of the bottle body and comprises a reinforcing layer formed by a carbon fiber material; the inner valve seat is bonded and fixed on the outer side of the reinforcing layer, and the carbon fiber layer wraps the inner valve seat, so that the inner valve seat is clamped between the carbon fiber layer and the reinforcing layer; the outer valve seat is arranged on the inner valve seat; and the sealing ring is used for sealing the valve seat. The valve seat interlayer arrangement at the end and the integrally-formed sealing connector are optimized, and the performance and reliability of the valve seat area are remarkably improved.

Provided herein is a high-pressure fluid storage container with oxidation resistance / hydrogen embrittlement resistance through surface treatment.

The invention discloses a functional gradient type nano-composite glass fiber hydrogen storage bottle and a preparation and monitoring method thereof, and relates to the technical field of high-pressure gas storage equipment. The functional gradient type nano-composite glass fiber hydrogen storage cylinder comprises a modified polymer liner, a hydrogen storage functional layer, a gradient enhancement layer, a self-repairing protective layer and an embedded monitoring unit embedded in the structure which are sequentially arranged from inside to outside, so that the integration of structure enhancement, active hydrogen storage, damage self-repairing and intelligent monitoring is realized; the gradient enhancement layer optimizes material distribution according to stress distribution, and the overall mechanical efficiency and the lightweight level are improved; the hydrogen storage functional layer endows the bottle body structure with an auxiliary hydrogen storage capability; through cooperation of the self-repairing protective layer and the embedded monitoring unit, active repairing and real-time sensing of micro-damage are achieved, the reliability and safety of the hydrogen storage bottle are improved, and the service life of the hydrogen storage bottle is prolonged.

The invention relates to a wall (10) for a sealed and thermally insulating tank for storing a liquefied gas, comprising a primary thermally insulating barrier (14) with a plurality of bearing elements (30) and a radiative multilayer insulation blanket (47), said blanket being attached to one of the bearing elements by an attachment device (51) comprising a connection portion attached to said bearing element and a support portion, in which the connection portion comprises two portions that are movable relative to one another between a spaced-apart position in which the two portions are spaced apart from one another in order to allow the bearing element to be passed through the attachment device and a close-together position in which the two portions are closer to each other compared to the spaced-apart position, so that the attachment device can be immobilized on the bearing element.

The present invention relates to a composition (C) comprising, based on 100 parts by mass of the resin present in the composition, 70 to 95 parts by mass of an epoxy resin (A) having a viscosity at a temperature between 20°C and 25°C of 20 Pa·s or less, preferably between 1 and 20, more preferably between 1 and 10, and 5 to 30 parts by mass of a curing agent (B) dispersed in the resin. The curing agent is a phosphonium cation of the formula P(R 1 R 2 R 3 R 4 ) + (wherein R 1 , R 2 , R 3 and R 4 may be the same or different and represent a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, or an aryl group having 6 to 20 carbon atoms, and the alkyl group and the aryl group may be substituted), and an acetate anion of the formula (R 5 CO 2 ) - (wherein R 5 represents a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, or an aryl group having 6 to 20 carbon atoms, and the alkyl group and the aryl group may be substituted), or a phosphinate anion of the formula [[(CH 3 ) 3 CCH 2 CH(CH 3 )CH 2 2 P(O)O] - . The present invention also relates to the use of the composition (C) for manufacturing a hydrogen container, in particular a container for storing gaseous hydrogen under pressure and containing a composite material, of types II, III, IV, and V.​

Gas canisters are provided that include an elongate body comprising a barrel region surrounding a cavity containing pressurized gas, an enclosed first end, and a neck region extending from the barrel region to an open second end including an outlet. A cap is attached to the neck region to enclose the cavity that includes one or more openings. A valve member and a dissolvable trigger member are provided in the cap such that the valve member seals the one or more openings to initially prevent the pressurized gas within the cavity from escaping until the trigger member dissolves. When the trigger member dissolves, the valve member moves to allow the one or more openings to communicate with the cavity to release the pressurized gas from the cavity through the one or more openings.

A multi-layered vessel may include a first vessel layer and a retaining vessel layer. The retaining vessel layer may be configured to strengthen the first vessel layer, and the retaining vessel layer may be secured to outer walls and / or inner walls of the first vessel layer. The first vessel layer alone (or with the retaining vessel layer and / or one or more additional retaining vessel layers) may form a sealed vessel.

The invention discloses a light-weight composite material gas cylinder and a preparation method thereof, and relates to the technical field of automobile parts, the light-weight composite material gas cylinder comprises a non-metal inner container, and is characterized in that a fiber resin reinforcing layer is wound outside the inner container, cylinder mouths are arranged at two ends of the inner container, sealing inserts are arranged in the cylinder mouths, and end sheaths are in threaded connection with the outer parts of the cylinder mouths; the end sheath is in threaded connection with a metal end, and a first sealing ring is arranged between the metal end and the sealing insert; according to the light-weight composite material gas cylinder and the preparation method thereof, the gas cylinder is light in weight, high in fatigue resistance and stable in end connection, the overall strength of the end position is guaranteed while the sealing performance is guaranteed, the gas leakage phenomenon is avoided, compared with a metal inner container gas cylinder, the problem that a pipeline is blocked by welding slag generated by a metal welding process is solved, and the service life of the gas cylinder is prolonged. The sealing structure has the advantages of corrosion resistance, zero welding seam, reliable sealing and the like, reduces the servicing mass of the automobile, improves the power of the automobile and reduces the fuel consumption.

The invention discloses a film type liquefied natural gas composite enclosure structure which comprises a main screen wall, a main shielding layer, a composite secondary screen wall and a secondary shielding layer which are connected layer by layer, the main shielding layer and the secondary shielding layer are made of first porous materials, and the first porous materials of the main shielding layer and the secondary shielding layer are connected with plywood respectively. The main shielding layer, the composite secondary shielding wall and the secondary shielding layer are connected through low-temperature glue, the main shielding wall is a corrugated metal plate, a plywood of the main shielding layer is pasted with a non-metal connecting piece, and the non-metal connecting piece is connected with the corrugated metal plate through the low-temperature glue. The invention further provides an assembly method of the thin film type liquefied natural gas composite enclosure structure. The strength of the enclosure structure is improved, heat conduction and heat leakage of the connecting pieces are reduced, and the construction difficulty is lowered.

The invention relates to a wall (11) comprising an insulating barrier (14) arranged to abut against a support structure and a sealing membrane (15) arranged to abut against the insulating barrier, the insulating barrier comprising: a support element (30); and a modular structure located between the support element and the sealing membrane, the modular structure being secured against the support element, the sealing membrane being disposed against and secured to the modular structure, the modular structure comprising a first plate-like member and a second plate-like member, the sealing film includes a first region fixed to the first plate-like member and a second region fixed to the second plate-like member, the first plate-like member being connected to the second plate-like member by a connection portion having a degree of freedom to translate in a direction perpendicular to a thickness direction of the wall and a degree of connectivity in the thickness direction of the wall.

The invention relates to the technical field of hydrogen storage high-pressure containers, and discloses a manufacturing method of a regenerated carbon fiber reinforced lining, which comprises the following steps: S1, manufacturing a pressure container inner container seal head according to a seal head mold, manufacturing by adopting an injection molding process, embedding a metal bottleneck valve seat into the seal head mold, and controlling the temperature of an injection molding material to be 200-300 DEG C and the temperature of the mold to be 70-80 DEG C; the invention further discloses a composite material pressure container with the regenerated carbon fiber reinforced lining, the composite material pressure container comprises the recoverable lining, the recoverable lining comprises an end socket and a cylinder body, and the end socket and the cylinder body are connected into a whole through welding; and the two metal bottleneck valve seats are respectively connected with the sealing heads at the two ends of the recyclable lining and are used for connecting an external pipeline of the pressure container. By recycling nylon 6 or nylon 66 and carbon fiber prepreg to manufacture the cylinder body and combining reelpipe forming and optimized carbon fiber winding design, the strength and the pressure bearing capacity of the inner container are improved, material use is reduced, and the problem of mass increase caused by a high-density metal reinforcing piece is solved through a light-weight structure.