173results about "Railway tunnels" patented technology

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

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 control module is provided for driving a vehicle relative to a track with a first and second rail both having a reluctance varying over the length of the track The vehicle comprises a first electromagnetic actuator module arranged to interact with the first rail; and a second electromagnetic actuator module arranged to interact with the second rail. The control module arranged to receive data indicating a distances between the electromagnetic actuator modules and the rails, relative positions of variations of the reluctance in the rails relative to the electromagnetic actuator modules. The control module is arranged to, based on the received data, generate a current signals and provide the generated current signals to the respective electromagnetic actuator modules.

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.

The invention relates to a channel system for connecting an ultra-high-speed train in a low-vacuum tunnel and an operation method of the channel system, and the system comprises a transversely arranged telescopic channel which is positioned in the low-vacuum tunnel, is connected between a train door of an airtight ultra-high-speed train and a platform door arranged on a tunnel lining, and comprises a plurality of sections of Z-shaped telescopic shells which are sequentially nested, and the vertical outline is gradually increased from inside to outside. The telescopic channel can be hidden in the thickness range of a low-vacuum tunnel lining in a compressed state, can be connected between a train door and a tunnel lining platform door in an extended state, operates by means of a magnetic attraction principle, serves as a telescopic three-dimensional shell structure system, has reliable air tightness measures, and is high in reliability and high in reliability. And meanwhile, the low-vacuum tunnel has certain overall rigidity, toughness and stability after being completely extended, repeated air inflation and air exhaust do not need to be conducted on the low-vacuum tunnel in the operation process, energy consumption is effectively controlled, the operation cost is reduced, and potential safety hazards caused by repeated changes of air pressure in the low-vacuum tunnel are fundamentally avoided.

The invention discloses a short primary linear driving electromagnetic suspension system which comprises a suspension frame and a track beam which are oppositely arranged, and a cavity is defined by the suspension frame and the track beam so as to install a magnetic conductive track, a linear motor primary, a linear motor secondary and an electromagnet. The electromagnets are positioned on two sides of the linear motor primary and are positioned on the vehicle body side; the magnetic conductive track and the linear motor secondary are located on the track side together, laid below the track beam and located above the linear motor primary and the electromagnet. In the short primary linear driving electromagnetic suspension system, the primary winding of the linear motor does not need to provide exciting current and is excited by the permanent magnet, the secondary winding does not have eddy current loss of an induction plate, and the motor efficiency is high. The linear motor can generate suspension force, the linear motor and the electromagnet jointly bear the suspension function of the maglev train, the electromagnet only needs to bear part of suspension load, temperature rise is low, and the suspension capacity of the system is high. The system does not need a water cooling device, and is simple in structure, light in weight and low in cost.

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.

An underground logistical system contains at least tunnels (1) located below ground and / or water and connected to intermediate hubs (2) of the system and / or to one another, said tunnels (1) being designed to allow the movement therethrough of at least vehicles and / or cargoes. The tunnels (1) and the walls that delimit the interior space of the intermediate hubs (2) of the system are formed by prefabricated elements (13) which are connected at least to one another and are made of fibre-reinforced concrete.

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 invention discloses a pipe connecting structure and a connecting method thereof. According to one aspect of the present invention, it is possible to provide a pipe connection structure that transports a transport device through an internal space provided at a pressure lower than atmospheric pressure, in which the pipe connection structure comprises: a plurality of pipes each having a flange having an enlarged diameter at one end and the other end; a fastening member provided so as to surround outer peripheral surfaces of the flanges adjacent to each other; and a sealing member provided between two adjacent flanges to seal a space between adjacent tubes, in which the sealing member is in close contact with the two flanges in an inward direction of the tubes due to a pressure difference between an exterior and an interior of the tubes.

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