CN110409230A - A kind of line system of pipeline levitation transport tool - Google Patents
A kind of line system of pipeline levitation transport tool Download PDFInfo
- Publication number
- CN110409230A CN110409230A CN201810383457.3A CN201810383457A CN110409230A CN 110409230 A CN110409230 A CN 110409230A CN 201810383457 A CN201810383457 A CN 201810383457A CN 110409230 A CN110409230 A CN 110409230A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- transport tool
- line system
- levitation transport
- suspension railway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005339 levitation Methods 0.000 title claims abstract description 17
- 239000000725 suspension Substances 0.000 claims abstract description 48
- 238000010276 construction Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims 1
- 230000036244 malformation Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 239000002887 superconductor Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/04—Magnetic suspension or levitation for vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B13/00—Other railway systems
- B61B13/10—Tunnel systems
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/30—Tracks for magnetic suspension or levitation vehicles
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/30—Tracks for magnetic suspension or levitation vehicles
- E01B25/305—Rails or supporting constructions
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Abstract
The present invention proposes a kind of line system of pipeline levitation transport tool, including pipeline, suspension railway system and main supporting structure, the suspension railway system is located inside pipeline, the suspension railway system includes suspension railway and rail support structures, the rail support structures bottom is connect with main supporting structure, and suspension railway is installed on top.The present invention uses the rail support structures of special construction, under the premise of meeting bearing strength, can effectively reduce under service condition and malformation caused by variation of ambient temperature, meets the deformation of track grade.
Description
Technical field
The present invention relates to a kind of line systems of pipeline levitation transport tool, belong to technical field of pipeline transport.
Background technique
Pipeline train disengages elimination frictional resistance using suspension technology and ground, using inside close to the pipeline of vacuum
Air drag is greatly decreased in route, to realize train supersonic speed " near-earth flight ".
Suspended pattern can be divided into electrodynamics suspension, electromagnetic suspension, permanent magnet suspension at present.High-speed flight train running speed is fast,
It is required that the control of suspension system is simple as far as possible, float resistance than small, riding stability is high, and existing electromagnetic suspension technology magnetic resistance it is high,
Electrodynamics suspension control system is complicated, cannot meet the requirements.For permanent magnet suspension, conventional rails design is divided into two kinds, and one kind is in vehicle
It is laid with above body, being attracted each other by magnet makes vehicle suspend, and it is another to be laid with track in lower section, made by the mutual repulsion of magnet
Vehicle suspends.The first is high to the Structural strength calls of pipeline and track, and since vacuum pipe size and structural strength have accordingly
Limitation, therefore be laid with track above and be not suitable for high-speed vacuum pipeline train system.Therefore, second of laying orbital fashion is mesh
The mode that preceding high-speed flight train generallys use.
Currently, being laid with Track desigh using permanent magnet suspension and below car body under ultrahigh speed vacuum pipe environment
It is only carried out in thinking or laboratory, tracks of permanent magnetism is routed in support plate.If but used in engineering, due to train
The speed of service is high, and ultrahigh speed state lower railway precision and deformation have a very important role to traffic safety, therefore track is not
Only to guarantee very high precision, and also need to meet millimetre-sized deformation requirements, while ambient temperature in operating conditions
Deng also can when track deformation, this just to Track desigh, processing and construction links bring very big challenge.
Summary of the invention
It is an object of the invention to overcome the shortage of prior art, a kind of meet under service condition and the milli of environmental change is provided
The line system of the pipeline levitation transport tool of meter level deformation requirements.
Technical solution of the invention: a kind of line system of pipeline levitation transport tool, including pipeline, suspension railway
System and main supporting structure, the suspension railway system are located inside pipeline, and the suspension railway system includes suspension rail
Road and rail support structures, the rail support structures bottom are connect with main supporting structure, and suspension railway is installed on top；
The rail support structures are made of main structure beam and several stiffening plates, and the main body of the main structure beam is sky
The box uniform beam of the heart, body top install support plate, with main body form T word structure, main body two sides along its length
Arrange several stiffening plates.
The present invention is designed by the structure and reinforcement of hollow box uniform beam, under the premise of meeting bearing strength, energy
It effectively reduces under service condition and malformation caused by variation of ambient temperature, meets the deformation of track grade.
Material, thickness and the stiffening plate layout density etc. that rail support structures use can be carried out by Mechanics Simulation
Optimization design.
The suspension railway is permanent magnet manufacture, is mounted on rail support structures upper surface two sides.
Further, the suspension railway can be mounted on rail support structures upper surface two sides by I-shaped rail,
Ventilation area can be increased by gap, reduce air bound effect when train passes through.
Radiator is arranged in the rail support structures two sides, for pipeline internal heat to be exported to pipeline external.
Due to seal for pipe joints, it is unfavorable for the interior heat dissipation of pipeline, using radially arrangement heat pipe, heat pipe are cold by inside along pipeline
Condensate or cooling medium heat absorption, condensed water or cooling medium are led to cold using ambient atmosphere or other modes progress outside pipeline
But.
The main supporting structure can be the shapes such as cylindrical, rectangular, directly can be fixedly mounted on ground by ground
On face, it can also cooperate with structures such as bridge piers, form elevated structure, main supporting structure is also designed to a part of bridge pier, in bridge
It is formed together in pier manufacturing process.The basis such as the distance between main supporting structure concrete shape, size, adjacent main supporting structure is held
Design requirement is carried, the support structure designs such as magnetic suspension, high-speed rail can be used for reference.
Existing track and pipeline are using carrying and sealing integrated design scheme, and track and pipeline are as one, such as Fig. 1 institute
Show, so that pipeline is while sealing, it is necessary to bearing track to the load of pipeline and vehicle by when the dynamic load that generates, make
It obtains to the more demanding of pipeline configuration intensity, while increasing the difficulty of seal for pipe joints, so that the difficulty and expense of pipe-line construction
It greatly increases.
Therefore further, to reduce seal for pipe joints difficulty and intensity requirement, track and pipeline are using carrying and sealing function
It can separate design.
The main supporting structure head penetrates in pipeline, and suspension railway system, suspension railway system position are installed in top
Inside pipeline, and there is the gap for being no less than 20mm between pipeline.
It designs in this way, so that pipeline is only subjected to internal and external pressure difference caused by self gravity and vacuum environment, and track
System, the weight of train and operation dynamic loading are undertaken by main supporting structure.In this case, main supporting structure penetrates inside pipeline
The shape that part can be convenient for using cylinder etc. and pipeline seals at wall-through.
Further, using carrying with sealing function separate design, the pipeline by bracket be supported on main supporting structure,
On ground or bridge pier.
The pipeline and main supporting structure is sealed by bellows.
The pipeline includes at least outside bearing pipe and inner seal pipeline.
The carrying of outside bearing pipe and environment resistant corrode, and are made of the higher material of intensity, such as mixed mud, specific to use
Material is determined according to design strength in conjunction with cost；Inner seal pipeline plays sealing function, there is the material system of good seal performance
At, such as carbon steel metal material, specifically determined using material according to design strength, seal request and cost.
If pipeline uses multi-layer piping, when sealing, bellows is intended to each layer pipeline closely coupled respectively, guarantees sealing.
The present invention compared with prior art the utility model has the advantages that
(1) present invention can be effectively reduced under the premise of meeting bearing strength using the rail support structures of special construction
Under service condition and malformation caused by variation of ambient temperature, meet the deformation of track grade；
(2) present invention is by the way that by sealing function and bearing function separation, pipeline only seals, and all carryings are by main branch
Support structure is realized, reduces the carrying demand to pipeline, so as to reduce the construction cost of vacuum pipe；
(3) present invention uses the separation of sealing function and bearing function, can be with there are certain interval between route and pipeline
Increase ventilation area, reduces air bound effect when train passes through, while the space can be used for arranging that associated cable is set
It is standby；
(4) present invention uses double-skin duct, and inner seal, outside carrying further decrease pipe design difficulty and cost；
(5) present invention uses permanent magnet suspension mode, and structure is simple, can be applied to ultrahigh speed, vacuum tube pipeline environment；
(6) radiator is arranged in the present invention in pipeline, is conducive to for heat in pipeline being discharged, and reduces temperature in pipeline.
Detailed description of the invention
Fig. 1 is existing line path seal carrier integration schematic diagram；
Fig. 2 is 1 suspension railway system structure diagram of the embodiment of the present invention；
Fig. 3 is rail support structures of the present invention；
Fig. 4 is magnetic suspension system structural schematic diagram of the present invention；
Fig. 5 is 2 suspension railway system structure diagram of the embodiment of the present invention.
Specific embodiment
Below with reference to specific example and attached drawing, the present invention is described in detail.
Embodiment 1
The present invention is as shown in Fig. 2, include pipeline 1, suspension railway system and main supporting structure 3, suspension railway system is located at
Inside pipeline 1, suspension railway system includes suspension railway 22 and rail support structures 21, and 21 bottom of rail support structures passes through branch
Seat 8 is connect with main supporting structure 3, and suspension railway 22 is installed by i section steel beam 9 in top.
Rail support structures 21 main structure beam 211 and several stiffening plates 212 as shown in figure 3, be made of, main structure beam 211
Main body be hollow box uniform beam, body top install support plate, with main body form T word structure, in main body two sides
Several stiffening plates 212 are arranged along its length.
Magnetic suspension system is as shown in figure 4, include magnetic levitation track 22 and the superconductor composition for being mounted on train set, magnetic floats rail
Road 22 is for generating magnetic field, and superconductor is used to generate induced current and electromagnetic force, to realize stable suspension.For convenient for true
It radiates in vacant duct, corresponding radiator 6 is installed in orbit.
Pipeline 1 and suspension railway system integration design, and a part of main supporting structure 3 and bridge pier 7 was manufactured in bridge pier
It is formed together in journey.
Radiator 6 by condensed water and is managed outer atmosphere progress heat exchange, is reduced temperature in pipeline using condensation Water Heat Pipes
Degree.
It is designed using Fig. 2,3,4, support plate uses permeability magnetic material, and tracks of permanent magnetism material is N52 Nd-Fe-B permanent magnet.Track
Support construction material selects Q345,2 meters of stiffening plate interval arrangement.
According to the track strategy parameter of design requirement, 16m, the case of tri- kinds of 24m (standard span), 32m spans are established respectively
Girder construction finite element model carries out the influence of load and temperature to track displacement and calculates, as a result as shown in table 1,2.
Table 1
| Span/m | Maximum displacement/mm |
| 16 | 0.21 |
| 24 | 0.83 |
| 32 | 2.33 |
Table 2
| Temperature/DEG C | Maximum displacement/mm |
| 50 | 0.74 |
| 20 | 1.44 |
| 10 | 1.67 |
| 5 | 1.79 |
| 0 | 1.91 |
| -5 | 2.04 |
| -10 | 2.16 |
According to table 1,2 results, it can be deduced that rail support structures design proposed by the present invention, which is able to satisfy, can adapt to train
Ultrahigh speed runs the requirement of (1000Km/h) to rail smooth degree.
Embodiment 2
As shown in figure 5, pipeline and rail system are using carrying and hermetic separation design, 3 head of main supporting structure penetrates pipe
In road 1, suspension railway system is installed at top, and suspension railway system is located inside pipeline, and there are gaps between pipeline 1.
Pipeline 1 is sealed with main supporting structure 3 by bellows 4, and pipeline 1 is supported on ground by bracket 5.
Pipeline 1 uses double-layer structure, and outside bearing pipe is made of mixed mud, plays carrying and environment resistant corrosion function,
Inner seal pipeline is made of carbon steel, plays sealing function.
Unspecified part of the present invention is known to the skilled person technology.
Claims (10)
1. a kind of line system of pipeline levitation transport tool, it is characterised in that: including pipeline, suspension railway system and main support
Structure, the suspension railway system are located inside pipeline, and the suspension railway system includes suspension railway and track support
Structure, the rail support structures bottom are connect with main supporting structure, and suspension railway is installed on top；
The rail support structures are made of main structure beam and several stiffening plates, and the main body of the main structure beam is hollow
Box uniform beam installs support plate in body top, forms T word structure with main body, arrange along its length in main body two sides
Several stiffening plates.
2. a kind of line system of pipeline levitation transport tool according to claim 1, it is characterised in that: the suspension
Track is permanent magnet manufacture, is mounted on rail support structures upper surface two sides.
3. a kind of line system of pipeline levitation transport tool according to claim 1 or 2, it is characterised in that: described
Suspension railway is mounted on rail support structures upper surface two sides by I-shaped rail.
4. a kind of line system of pipeline levitation transport tool according to claim 1, it is characterised in that: the track
Radiator is arranged in support construction two sides.
5. a kind of line system of pipeline levitation transport tool according to claim 1, it is characterised in that: the suspension
Rail system and pipeline are using carrying and sealing function separate design.
6. a kind of line system of pipeline levitation transport tool according to claim 5, it is characterised in that: the main branch
Support structure head penetrates in pipeline, and suspension railway system is installed at top, and suspension railway system is located inside pipeline, and and pipeline
Between exist no less than 20mm gap.
7. a kind of line system of pipeline levitation transport tool according to claim 5, it is characterised in that: the pipeline
It is sealed with main supporting structure by bellows.
8. a kind of line system of pipeline levitation transport tool according to claim 1, it is characterised in that: the pipeline
Including at least outside bearing pipe and inner seal pipeline.
9. a kind of line system of pipeline levitation transport tool according to claim 1, it is characterised in that: the main branch
Support structure is directly fixedly mounted on the ground by ground.
10. a kind of line system of pipeline levitation transport tool according to claim 1, it is characterised in that: the master
Support construction and bridge pier structure cooperate, and form elevated structure, or be designed as a part of bridge pier, in bridge pier manufacturing process together
Molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810383457.3A CN110409230A (en) | 2018-04-26 | 2018-04-26 | A kind of line system of pipeline levitation transport tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810383457.3A CN110409230A (en) | 2018-04-26 | 2018-04-26 | A kind of line system of pipeline levitation transport tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110409230A true CN110409230A (en) | 2019-11-05 |
Family
ID=68345683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810383457.3A Pending CN110409230A (en) | 2018-04-26 | 2018-04-26 | A kind of line system of pipeline levitation transport tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110409230A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03257201A (en) * | 1990-03-06 | 1991-11-15 | Takenaka Komuten Co Ltd | Track for superconductive magnetic levitation type linear motor car |
| DE10321047A1 (en) * | 2003-01-14 | 2004-08-05 | Schmitt Stumpf Frühauf und Partner Ingenieurgesellschaft mbH | Track support for magnetic levitation railways comprises a supporting framework consisting of a standardized prefabricated part, and system components forming part of a track placed on the supporting framework |
| CN1861914A (en) * | 2006-06-13 | 2006-11-15 | 上海市隧道工程轨道交通设计研究院 | Installing method for rail beam structure of magnetic suspension tunnel shoreside section |
| WO2007147308A1 (en) * | 2006-06-18 | 2007-12-27 | Dongning Zhou | A both sides sealed and lower prossure air cushion train |
| CN104417569A (en) * | 2013-09-09 | 2015-03-18 | 刘忠臣 | Transparent vacuum pipeline |
| CN107097802A (en) * | 2017-04-28 | 2017-08-29 | 北京机电工程研究所 | A kind of high reliability vacuum pipe system |
| CN208219313U (en) * | 2018-04-26 | 2018-12-11 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | The line system of pipeline levitation transport tool |
-
2018
- 2018-04-26 CN CN201810383457.3A patent/CN110409230A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03257201A (en) * | 1990-03-06 | 1991-11-15 | Takenaka Komuten Co Ltd | Track for superconductive magnetic levitation type linear motor car |
| DE10321047A1 (en) * | 2003-01-14 | 2004-08-05 | Schmitt Stumpf Frühauf und Partner Ingenieurgesellschaft mbH | Track support for magnetic levitation railways comprises a supporting framework consisting of a standardized prefabricated part, and system components forming part of a track placed on the supporting framework |
| CN1861914A (en) * | 2006-06-13 | 2006-11-15 | 上海市隧道工程轨道交通设计研究院 | Installing method for rail beam structure of magnetic suspension tunnel shoreside section |
| WO2007147308A1 (en) * | 2006-06-18 | 2007-12-27 | Dongning Zhou | A both sides sealed and lower prossure air cushion train |
| CN104417569A (en) * | 2013-09-09 | 2015-03-18 | 刘忠臣 | Transparent vacuum pipeline |
| CN107097802A (en) * | 2017-04-28 | 2017-08-29 | 北京机电工程研究所 | A kind of high reliability vacuum pipe system |
| CN208219313U (en) * | 2018-04-26 | 2018-12-11 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | The line system of pipeline levitation transport tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208219313U (en) | The line system of pipeline levitation transport tool | |
| CN208216700U (en) | Pipeline transportation tool line system | |
| CN202279115U (en) | Prestressed pipe of vacuum type energy-saving magnetic suspension railway carriage | |
| CN210554796U (en) | Natural liquid cooling heat conduction pipe and natural liquid cooling split vacuum pipeline structure with same | |
| CN112626938B (en) | Double-line track beam wrapped with metal film and single-pipe double-line vacuum pipeline with double-line track beam | |
| CN105151051A (en) | Low-air-pressure pipeline for maglev vehicle system to go through | |
| CN112626937B (en) | Rail beam structure coated with metal film and split type vacuum pipeline with rail beam structure | |
| CN107697080B (en) | Vacuum high-speed traffic pipeline | |
| CN101748664A (en) | Compound steel pipe structure and application thereof | |
| CN205688288U (en) | Straddle-type monorail U-rail beam | |
| CN108639071B (en) | Long range large-diameter, sealed tube road system | |
| CN113651113B (en) | Suspended permanent magnet suspension pipeline logistics system | |
| CN110409230A (en) | A kind of line system of pipeline levitation transport tool | |
| CN206446457U (en) | A kind of suspension rack of Vacuum maglev train embraces rail device and Vacuum maglev train | |
| CN110406548A (en) | A kind of pipeline transportation tool line system | |
| CN109795333A (en) | A kind of suspension type magnetic floating traffic rail system, suspension rack system, maglev vehicle and magnetic floating system | |
| CN210822223U (en) | Hollow split vacuum pipeline structure and magnetic suspension high-speed train with same | |
| CN105297561A (en) | Medium and low speed prefabricated reinforced concrete magnetic levitation beam and manufacturing method thereof | |
| CN112109738A (en) | Hollow split vacuum pipeline structure and magnetic suspension high-speed train with same | |
| CN209921300U (en) | Pipeline bearing structure of pipeline suspension transport means | |
| CN105625157A (en) | Combined box type track beam with outwards extended bottom plate and hanging top plate | |
| CN205474783U (en) | Combination box track roof beam that bottom plate is overhanging, roof hung | |
| CN205474629U (en) | Combination box track roof beam that bottom plate opening, roof hung | |
| CN210912405U (en) | A plumbing installation for vacuum pipe transportation | |
| CN205387646U (en) | Aerial rail train's foundation pile roof beam improves structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |