153results about "Railway tunnels" patented technology

The invention relates to the technical field of high-speed maglev traffic, in particular to an ultrahigh-speed low-vacuum pipeline dust removal device. The technical problem to be solved by the invention is that the resistance is increased and the vacuum degree of the pipeline is reduced due to dust accumulation in the ultra-high-speed low-vacuum pipeline. Comprising a vacuum pipeline and a cleaning mechanism, the cleaning mechanism comprises prefabricated frames, the prefabricated frames are symmetrically and fixedly connected to the inner wall of the vacuum pipeline, sliding boxes are slidably connected into the prefabricated frames, and first compression springs are arranged between the sliding boxes and the inner walls of the prefabricated frames. Through the design of the cleaning mechanism, dust removal is conducted on the vacuum pipeline, the situation that dust exists in the vacuum pipeline, consequently, the dust occupies the space in the pipeline, the flowing resistance of gas or fluid is increased, and the vacuum degree of the vacuum pipeline is prevented from being reduced is avoided; and through the design of a scraping plate, dust falling into the first U-shaped frame is scraped away, the dust is prevented from being accumulated in the first U-shaped frame, and the dust in the sealed space can be purged through a purging pipe.

A railway system including at least two railway guide systems interfacing at a system conversion station, at least one railway guide system comprising a magnetic levitation railway track and the other railway guide system comprising one of a wheel railway track and a magnetic levitation railway track, the system conversion station comprising a bogie storage zone for storing one or more bogies adapted for locomotion on the first railway guide system and for storing bogies adapted for locomotion on the second railway guide system.

A method for erecting a portion of a transportation structure including a plurality of piers, a plurality of platforms forming a service pathway, a first plurality of girders forming a first assembly of tube segments, capable of being placed under low air pressure and through which pods may travel substantially free of air friction, and forming a first rooftop transportation pathway the method including conveying with vehicle(s) the girders and platforms along the first transportation pathway, positioning them and having the vehicle(s) return along the service pathway. A portion of a transportation structure is also provided.

System for conveying at least one transport capsule comprising: - a pipe (2) comprising first and second trunk (21, 22) that are reciprocally assembled; - a coating (3) whose function is structural and of at least partially waterproofing the pipe (2) and comprising tensioned ribbon-shaped means (31) that wraps and compresses at least one portion of the pipe (2). The ribbon-shaped means (31 ) is made of fibre-resin composite material and comprises said fibres impregnated in said resin.

Disclosed herein is a tube for a transportation system. The tube for a transportation system according to an embodiment may include: an inner tube for providing a travel path of a vehicle that travels under a pressure lower than atmospheric pressure; an outer tube formed outside the inner tube; and a damping member for supporting the inner tube and the outer tube and buffering between the inner tube and the outer tube.

The invention relates to the technical field of low-vacuum aircrafts, and discloses a cabin suitable for a low-vacuum single-suspension-frame aircraft. Wherein the cabin body comprises a sealing cover, a sealing unit and an equipment mounting unit, the sealing cover is connected with the equipment mounting unit through the sealing unit, the sealing cover comprises a metal cover body, a transverse reinforcing unit and a longitudinal reinforcing unit, and the transverse reinforcing unit and the longitudinal reinforcing unit are arranged outside the metal cover body; a groove is formed in the connecting position of the metal cover body and the equipment mounting unit and used for arranging the sealing unit, the equipment mounting unit comprises a metal upper cover plate and a metal framework, the metal framework is of a net-shaped framework structure formed by welding metal cross beams and metal longitudinal beams, and the metal upper cover plate is arranged above the metal framework. Therefore, the cabin for the low-vacuum superconducting vehicle can be provided, the cabin is connected with the equipment mounting unit in a matched mode through the sealing cover, and the cabin has the equipment sealing function while bearing is achieved.

This invention discloses a hot-rolled steel sheet for vacuum train tubes that exhibits excellent yield strength, weldability, low-temperature toughness of the welded portion, vibration damping ratio, and is free from hot cracking. The hot-rolled steel sheet according to this invention is characterized in that its alloy composition, by weight percent, comprises: C: less than 0.06% (more than 0%), Si: 0.5-1.5%, Mn: 1.2-2.2%, Cu: 0.5-1.5%, Ni: more than 0.25%, Ti+Nb+V: less than 0.02% (inclusive of 0%), the balance being Fe and unavoidable impurities.

A tube assembly for a transportation system is disclosed. A tube assembly for a transportation system according to an embodiment comprises multiple tubes connected to each other through connection units to provide a traveling space for a traveling body. Each of the multiple tubes may comprise: multiple segmented panels arranged along a circumferential direction to surround the traveling path of the traveling body; and binding units disposed between the multiple segmented panels to bind the segmented panels adjacent to each other in the circumferential direction. The connection units may include restraining rings for restraining the circumferences of longitudinal ends of the tubes in a state in which the segmented panels are bound by the binding units.

The invention relates to the technical field of maglev rails, and provides a combined maglev rail suitable for pipeline transportation and an application method thereof.The combined maglev rail suitable for pipeline transportation is characterized in that a driving channel and a horizontal bearing part are arranged in a mounting pipeline, the horizontal bearing part is connected with the inner wall of the mounting pipeline, and the horizontal plane of the horizontal bearing part is parallel to the axis of the mounting pipeline; the traction track mounting seat is connected with the horizontal plane of the horizontal bearing part; the linear motor induction plate is connected with one end, far away from the horizontal bearing part, of the traction track mounting seat; the two suspension rails are arranged on the horizontal plane of the horizontal bearing part and symmetrically distributed on the two sides of the traction rail installation base. Any suspension track comprises a suspension mounting seat and a metal track; the metal track is connected with the horizontal plane of the horizontal bearing part through the suspension mounting seat; the metal rail is a U-shaped rail, and an opening of the U-shaped rail faces downwards. By adopting the compact combination design of the horizontal bearing part in the pipeline and the U-shaped suspension track, the vehicle running space occupation ratio is increased, and intensive utilization of underground space is achieved.

Disclosed in the present invention are an operation protection method and system for an ultra-high-speed maglev train in a vacuum environment of a low-vacuum tube tunnel. The method comprises: first, a vacuum tube monitoring system establishing an air diffusion model on the basis of the pressure and the airflow velocity in a vacuum tube; and then, on the basis of the air diffusion model, a central operation control system controlling an on-board operation control system by means of a zoned operation control system to control the operation state of a train. By using the method, safety risks caused by leakage in a low-vacuum tube tunnel are avoided, thereby realizing the safety protection for a train in a vacuum tube, greatly improving the operation reliability of the train in a vacuum environment, and ensuring the operation safety of the train.

The underground magnetic suspension ultra-high-speed train vacuum tunnel is located at the position 50-100 m underground and comprises a plurality of sections of vacuum pipelines and station channels which are arranged at intervals, and rails are laid in the vacuum pipelines and the station pipelines; a cabin door group is arranged in the station channel and comprises four cabin doors which are arranged in sequence and can be opened and closed, namely a cabin door I, a cabin door II, a cabin door III and a cabin door IV, a waiting cabin I is arranged between the cabin door I and the cabin door II, a waiting cabin II is arranged between the cabin door III and the cabin door IV, a passenger getting-on and getting-off cabin is arranged between the cabin door II and the cabin door III, and an in-out elevator is arranged between the passenger getting-on and getting-off cabin and the ground; a plurality of vacuumizing openings and air supply openings are formed in the vacuum pipeline, the waiting bin I and the waiting bin II, air supply openings are formed in the getting-on and getting-off bin, each vacuumizing opening is provided with an evacuator, and each air supply opening is provided with an air feeder; and during normal passing, the air pressure in the vacuum pipeline is 10% of one standard atmospheric pressure. The technical scheme does not occupy the ground surface area and prevents noise from disturbing residents.

To provide an intra-pipe moving robot capable of moving suitably for different pipe diameters.SOLUTION: An intra-pipe moving robot comprises: a movable body that is configured of a plurality of expansion / contraction units connected to one another via connection means, and is provided inside a pipe, the expansion / contraction unit comprising an outer tube formed of an elastic body, an inner tube provided inside the outer tube, and an end member that is provided at each axial end of the outer and inner tubes and forms a closed space together with the inner periphery of the outer tube and the outer periphery of the inner tube, and the expansion / contraction unit axially contracting and radially expanding by supplying a fluid into the closed space, and axially expanding and radially contracting by discharging the fluid from the closed space; and a fluid control device that operates the plurality of connected expansion / contraction units so that they imitate peristaltic motions in the pipe to cause the movable body to generate propulsion power. The fluid control device comprises pipe inner diameter acquisition means for acquiring the inner diameter of the pipe, and propulsion control means configured to be capable of changing timing of the peristaltic motions on the basis of the inner diameter of the pipe.SELECTED DRAWING: Figure 9

The present invention discloses a system and method for coupling negative pressure energy storage with a vacuum pipeline, belonging to the field of vacuum pipeline transportation technology. The system comprises a vacuum pipeline having an internal air pressure lower than an external air pressure and a potential energy conversion mechanism. The potential energy conversion mechanism comprises a conversion pipeline, an expander, a generator, and a conversion valve. The conversion valve is disposed on the conversion pipeline, one end of the conversion pipeline is connected to an interface component, and the other end of the conversion pipeline is connected to the outside of the vacuum pipeline. Each expander is disposed on the conversion pipeline, and each expander includes a rotating shaft connected to the generator. The expander is configured such that, when the negative pressure potential energy of the vacuum pipeline is released, a gas flow is formed in the conversion pipeline to drive the rotating shaft to rotate. The present invention provides a system and method for coupling negative pressure energy storage with a vacuum pipeline. The system can combine the structural characteristics of the vacuum pipeline to achieve efficient recovery of the negative pressure potential energy inside the vacuum pipeline during the pressure recovery process inside the vacuum pipeline, significantly reducing energy waste.

To allow a moving body to be smoothly moved along a pipe by the driving force of rotating parts in contact with an inner surface of the pipe.SOLUTION: A moving body 10 is provided so as to be movable in a pipe 100 along the pipe 100, and the moving body 10 comprises: a plurality of rotating parts 31-35 constituted so as to be rotatable, and capable of coming into contact with and separating from an inner surface 110 of the pipe 100; connecting parts 21B-21E connecting the plurality of rotating parts 31-35 to one another; and detecting parts 61-64 provided on the connecting parts 21B-21E, and for detecting strain generated in the connecting parts 21B-21E.SELECTED DRAWING: Figure 3

A method of operating a tube transportation system, the tube transportation system comprising: (a) a tube assembly, the tube assembly including: (a-1) an outer tube (1); (a-2) one or more inner tubes (2) housed and held within the outer tube such that an annular space (3) is formed between adjacent tubes; and (a-3) a support structure (4) for holding the outer tube, the tube assembly having an inner wall surface defining an interior space (5) for receiving a vehicle (6) and guiding the vehicle (6) along a path extending from a first end (7) of the tube assembly to an opposite second end (8), the tube assembly including one or more pressure valves for releasing gas particles from the interior space (5). or a nozzle (9)), and (b) a vehicle (10) having an outer wall surface defining an annular gap (11) between the outer wall surface of the vehicle (10) and an inner wall (12) of a tube assembly, the method comprising: (i) moving the vehicle along a path toward a first end (7) at a velocity that exceeds a choking limit of the gas particle flow in the annular gap (11) while releasing gas particles from an interior space (5) of the tube assembly forward of the vehicle; and subsequently (ii) reversing the direction of movement and moving the vehicle along a path toward a second end (8) at a velocity that exceeds the choking limit of the gas particle flow in the annular gap (11) while releasing gas particles from an interior space (5) of the tube assembly forward of the vehicle.

The invention provides a permanent magnet and electromagnetic hybrid hanging type suspension pipe rail transportation system. The permanent magnet and electromagnetic hybrid hanging type suspension pipe rail transportation system comprises a pipeline, a magnetic levitation vehicle, a traction module and a suspension module. The magnetic levitation vehicle is provided with the levitation module based on the permanent magnet and electromagnetic hybrid levitation technology, and the levitation module is arranged between the magnetic levitation vehicle and the inner top of the pipeline, so that the innovative design of combining permanent magnet and electromagnetic hybrid levitation and suspension type layout is realized; according to the innovative design, a permanent magnet part in the permanent magnet and electromagnetic hybrid electromagnet can be used for providing basic suspension force so as to greatly reduce energy consumption required by suspension, and a complex walking supporting mechanism in a traditional magnetic suspension system can be omitted through a hanging type structure, so that the section size of a pipeline is remarkably reduced; therefore, the technical problems of high energy consumption, complex structure and high construction cost of the existing magnetic suspension type pipe rail transportation system are synchronously solved, and the magnetic suspension type pipe rail transportation system with low energy consumption and high space utilization rate is realized.

A guide tube according to an embodiment of the present invention may comprise: a tube main body member; a rib member arranged in the longitudinal direction of the tube main body member and coupled to the inner surface of the tube main body member; and a rail support member connected to the rib member.

In accordance with at least one aspect of this disclosure, a power system for a vehicle is disclosed. The system can include, one or more power distribution sources configured to supply electrical power to one or more power districts. One or more power conversion devices can be housed within a respective power district. In embodiments, the power district can be configured to allow for managing a draw by a respective one or more loads within the respective power district. The one or more power conversion devices can be configured to receive electrical power from one or more of the one or more power distribution sources, convert the electrical power to a secondary form, and then the converted electrical power to the one or more loads within the respective power district. In embodiments, a logic module can be operatively connected to the one or more power districts, configured to control at least a load draw.

To provide an in-pipe moving device which is lightweight so as to be moved by fluid pressure, that is, which has a simple structure, which can pass through a number of elbows, and which has high capability of stepping over an obstacle in a pipe.SOLUTION: An offset support wheel 1 includes a spherical wheel 10, and an axle 16 passing through a center of the wheel 10, the axle 16 being such that the wheel 10 rotates around a center axis of the axle 16; wherein the wheel 10 includes, in a direction of the axle 16, a first semi-spherical part 12 in a substantially semi-spherical shape, a second semi-spherical part 14 in a substantially semi-spherical shape, positioned opposite to the first semi-spherical part 12, and a central member 18 positioned between the first hemispherical part 12 and the second hemispherical part 14; and wherein the tether 100 is constrained in a traveling direction of the offset support wheel 1, at a position offset from the axle 16 of the center member 18.SELECTED DRAWING: Figure 1

Disclosed herein is a tube connecting structure and a connection method thereof. According to an aspect of the disclosure, in a tube connecting structure for transporting a vehicle through an internal space at a pressure lower than atmospheric pressure, the tube connecting structure may include: a plurality of tubes, each of which is provided with flanges having an extended diameter at each end; a fastening member arranged to surround an outer circumferential surface of the flanges adjacent to each other; and a sealing member provided between the flanges adjacent to each other to seal a gap between the plurality of tubes adjacent to each other, wherein the sealing member is in close contact with the two flanges in an inward direction of the tube.

An object of the present invention is to provide an in-pipe moving robot that can surely pass through a bent portion of a pipe. The in-pipe moving robot 1 includes a robot body 10 having at least three telescopic units 11, and a tip posture maintaining unit 20 having a tip body portion 21 that constitutes the tip of the in-pipe moving robot 1, and a pair of elastic bodies 22 and 23 that protrude radially outward from the outer peripheral surface of the tip body portion 21 and are arranged at intervals in the axial direction. The in-pipe moving robot 1 is characterized by having an elastically deformable elastic connection portion 40 provided between the tip posture maintaining unit 20 and the robot body 10.

The present invention relates to the field of high-speed magnetic levitation transportation technology, and in particular to an ultra-high-speed low-vacuum pipeline dust removal device. The technical problem to be solved by the present invention is that dust accumulation in ultra-high-speed low-vacuum pipelines will lead to increased resistance and decreased vacuum in the pipeline. It comprises a vacuum pipeline and a cleaning mechanism, the cleaning mechanism comprising a prefabricated frame, the inner wall of the vacuum pipeline is symmetrically fixed with the prefabricated frame, a sliding box is slidably connected inside the prefabricated frame, and a first compression spring is provided between the sliding box and the inner wall of the prefabricated frame. The present invention removes dust from the vacuum pipeline through the design of the cleaning mechanism, prevents the existence of dust inside the vacuum pipeline, causes dust to occupy the space inside the pipeline, increases the flow resistance of gas or fluid, and prevents the vacuum degree of the vacuum pipeline from decreasing; through the design of the scraper, the dust falling into the first U-shaped frame is scraped off to prevent dust from accumulating in the first U-shaped frame, and the dust in the sealed space can be blown away by the purge pipe.

A system and method for transit of delivery pods across a pipe network, including: a commodity-based passive pipe segment including a guide rail extending through a hollow interior of the pipe segment, the pipe segment configured to facilitate a transit for pods to travel along the guide rail; a portal configured to enable insertion and removal of removable totes from pods; a pod configured to travel through the hollow interior of the pipe segment and including (i) a cargo module carrying a removable tote, (ii) a drive module including an electric motor operatively connected to an active wheel assembly positioned to enable a first wheel to actively engage with the guide rail, and (iii) a passive wheel assembly positioned to enable a second wheel to passively engage with the guide rail.

The invention relates to of a portion of transportation structure comprising: a substructure comprising a plurality of piers, a first plurality of girders (6) positioned on at least some of the piers and forming a first transportation pathway, a first assembly of tube segments (14), capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the first assembly of tube segments been positioned on the first transportation pathway and each tube segment comprising: a main tube with legs (27) distributed along the length of the main tube and suitable for the main tube to rest on the substructure on its legs, shims (28) positioned in-between the substructure and at least part of the legs, the thickness of each shim been adapted so that the deflection of the substructure between piers is offset.