1391results about "Vessel manufacturing" patented technology

Disclosed in the present invention are an underground gas storage device for compressed air energy storage and a construction method therefor. The underground gas storage device for compressed air energy storage comprises an underground gas storage cavern, the underground gas storage cavern being formed of a plurality of underground gas storage cavern sections, wherein a connecting tunnel is provided between two non-adjacent underground gas storage cavern sections, a vertical shaft is provided at the top end of the connecting tunnel, and a sealing plug is provided in the intersection between the vertical shaft and the connecting tunnel; a gas intake pipeline and a gas output pipeline are provided in the vertical shaft, and a sump is provided on an outer bottom wall of the connecting tunnel; a first drainage ditch is provided around the top face edge of the sealing plug in the vertical shaft, and the first drainage ditch is in communication with the sump; and a drainage blind pipe assembly is provided on the periphery of the underground gas storage cavern sections, and the drainage blind pipe assembly is in communication with the sump via a second drainage ditch arranged at the outer bottom wall of the connecting tunnel. The present invention can achieve one-time excavation forming, without transformation and with relatively low construction difficulty, and can effectively reduce the influence of underground water on the underground gas storage cavern during a construction period, operation period and maintenance period.

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.

A pressure vessel may include a body formed of a polymeric material. The body may extend between a first end and a second end. The body may include a center column defining a first inner volume extending between the first end and the second end. A wall may be connected to the center column. The wall may surround the center column and define a second inner volume therebetween. The second inner volume may be disposed annularly around, and fluidly separate from, the first inner volume. The pressure vessel may also include a first end cap coupled to the center column at the first end and second end cap coupled to the center column at the second end. The first end cap may close off the first inner volume at the first end. The second end cap may close off the first inner volume at the second end.

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.

A fuel rail and a method for producing the fuel rail for a pressure vessel system are provided. The method provides a fuel line and configures a plurality of rail connectors. The rail connectors have a cross-sectional area that is enlarged in comparison to the provided fuel line, and the rail connectors are configured so as to be integral to the fuel line.

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 following invention relates, in a first aspect, to a pressure vessel for receiving and storing gases, more particularly hydrogen. The pressure vessel comprises a main body of metal together with an outer shell, the outer shell having sensor elements and reinforcing elements, with optional transmitters and / or receivers of information and electric fields present optionally in the outer shell. The present invention also relates to corresponding pressure storage systems having pressure vessels of this type, to devices having fuel cells and pressure vessels according to the invention, and to methods for producing said pressure vessels.

The invention relates to a low-temperature liquid medium storage container and a construction and arrangement method of a metal film on the inner wall of the low-temperature liquid medium storage container, and belongs to the technical field of low-temperature liquid medium storage. The structure of the metal film comprises a top surface film, a right side surface film, a bottom surface film, a left side surface film, four transition surface films, a front surface film and a back surface film which are respectively arranged on the top surface, the right side surface, the bottom surface, the left side surface, four transition surfaces, the front surface and the back surface of the annular side surface of the low-temperature liquid medium storage container, the top surface film, the right side surface film, the bottom surface film and the left side surface film are respectively connected with the four transition surface films to form an annular side surface film; and the front film and the back film are connected through the annular side film to form a totally-closed three-dimensional film.

Provided are a method and a system for optimizing a design of a high-pressure hydrogen storage composite wound gas cylinder. The method includes: S1, determining a preliminary design result according to a film theory and a grid theory; S2, establishing a three-dimensional solid refined model of the preliminary design result based on a finite element analysis software; and S3, applying the three-dimensional solid refined model for a simulation analysis, and applying a response surface or a genetic algorithm for an optimization design.

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 subsea unit suitable for storing hydrogen gas underwater comprises a weighting base and an array of interconnecting storage tanks on the base. The base may be cast from concrete on a deck of a vessel from which the unit is subsequently launched into water. A protective structure fixed to the base covers the array of tanks. A restraint system, comprising a series of strap restraints curving around the top of each tank, secures the tanks to the base against buoyant upthrust. The restraints are attached to elongate tensile members extending upwardly from the base, disposed on opposite sides of the underlying tank. The arrangement transfers loads efficiently from each tank to the base on load paths that bypass the other tanks.

The invention relates to a method for manufacturing a container (100) for receiving a fluid with an outer shell (101) and a liner (106), wherein a first hollow body made of a first metal is used as the outer shell (101) and a second hollow body made of a second metal is used as the liner (106). The process comprises the following process steps: forming the outer shell (101), arranging a liner blank (105) to form the liner (106) in the formed outer shell (101), forming the liner blank (105) to form the liner (106) in the outer shell (101) by internal high-pressure forming, so that the liner (106) is positively engaged with the inside (104) of the outer shell (101), wherein a connection using the at least one holding device of the container (100) is used to apply pressure to the liner blank (105) for internal high-pressure forming.

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 present disclosure provides a vehicle fluid storage device that couples a metal or aluminum connector and a plastic container and a manufacturing method thereof. The vehicle fluid storage device a storage container in which a storage space for fluid is formed and an opening is formed on one side or both sides, and an assembly including a connector disposed adjacent to the opening and forming a path through which the fluid flows into and out of the storage space, and a holder disposed between the storage container and the connector to connect the storage container and the connector, in which the storage container and the holder are coupled to each other by rotation melting.

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.

A cryogenic fluid pressure vessel for an aircraft, having: a first wall layer, which contains carbon fiber-reinforced plastic, having an inner contact surface for the contact with a pressurized cryogenic fluid to be accommodated inside the cryogenic fluid pressure vessel; a second wall layer, which is arranged on an outer surface of the first wall layer and has a thermal barrier; a closable inlet / outlet opening for cryogenic fluid, which extends through the first and the second wall layer; and a structural insert integrated in the first and the second wall layer, which has a fastening connecting piece located on the outside of the cryogenic fluid pressure vessel for mechanically coupling the cryogenic fluid pressure vessel with external structures; wherein the cryogenic fluid pressure vessel forms an essentially cylindrical main body. Furthermore, the present invention provides an aircraft having such a cryogenic fluid pressure vessel.

The invention belongs to the technical field of high-pressure hydrogen storage containers in the hydrogen energy storage and transportation equipment industry, and particularly relates to a self-reinforced high-pressure hydrogen storage container with an inner steel cylinder and an outer winding steel wire and a manufacturing method thereof. A self-enhancement high-pressure hydrogen storage container with an inner steel cylinder and an outer winding steel wire comprises a lining steel cylinder, a gas inlet and a gas outlet are formed in the two ends of the lining steel cylinder respectively, an enhancement layer is arranged on the outer side of a cylindrical cylinder in the middle of the lining steel cylinder, and annular anti-skid tables are arranged at the junctions of the arc tops of end openings of the outer walls of the lining steel cylinder at the two ends of the enhancement layer and the cylindrical cylinder respectively. And the reinforcing layer is formed by annularly winding a high-strength steel wire prepreg tape and curing the high-strength steel wire prepreg tape through epoxy resin. By means of the structure of the lining seamless steel cylinder and the winding steel wire reinforcing layer, the pressure bearing capacity of the container is effectively improved, the water volume of the hydrogen storage container of 103 MPa or above for the 70 MPa hydrogen refueling station is further increased, meanwhile, due to the fact that the price of high-strength steel wires is far lower than that of carbon fibers, the product manufacturing cost is reduced, and meanwhile the problem that non-metal wire winding materials are prone to aging is solved.

The invention relates to a double-wall storage tank. The double-wall storage tank comprises an inner container surrounded by an outer sheath. More specifically, the present invention relates to a double-walled storage tank comprising an arrangement for coupling an inner container relative to an outer jacket.

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