CN215630133U - Comprehensive pipe gallery for railway station yard section - Google Patents
Comprehensive pipe gallery for railway station yard section Download PDFInfo
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- CN215630133U CN215630133U CN202123197459.XU CN202123197459U CN215630133U CN 215630133 U CN215630133 U CN 215630133U CN 202123197459 U CN202123197459 U CN 202123197459U CN 215630133 U CN215630133 U CN 215630133U
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Abstract
The utility model belongs to the technical field of comprehensive pipe galleries and discloses a comprehensive pipe gallery for a railway station yard section, wherein a two-cabin section pipe gallery and a three-cabin section pipe gallery are oppositely arranged on two sides of the railway station yard section, and an over-rail two-cabin section pipe gallery and an over-rail four-cabin section pipe gallery are respectively arranged at over-rail positions on two sides of the railway station yard section; two sections piping lane in cabin are provided with water letter cabin and electric power communication cabin, and three sections piping lane are provided with warm letter cabin of water, first light current cabin and first forceful electric power cabin, cross two sections piping lane in cabin of rail and are provided with warm cabin of first water and four electric power cabins, cross four sections piping lane in cabin of rail and be provided with warm cabin of second forceful electric power cabin, the weak current cabin of second, the warm cabin of second water and rubbish cabin of unloading. According to the utility model, the position division of pipelines with different functions in the comprehensive pipe gallery is fully considered, the arrangement position characteristics of the comprehensive pipe gallery are considered, the laying and the utilization of different types of pipelines are facilitated, and the use requirements of the comprehensive pipe gallery at different positions are met.
Description
Technical Field
The utility model belongs to the technical field of comprehensive pipe galleries, and particularly relates to a comprehensive pipe gallery for a railway station yard section.
Background
Along with current urbanization process is faster and faster, also higher and higher to utility tunnel's requirement, utility tunnel lays equipment, maintenance and repair more and more frequently, has the requirement to inside air quality when getting into utility tunnel, otherwise can't guarantee entering personnel's safety, and utility tunnel still need possess the emergency treatment ability behind accident and the calamity simultaneously.
Utility tunnel in the railway station field section within range needs adopt different cabin section patterns according to different stations, the within range interior pipeline function demand in section and the development planning condition, but the design of the utility tunnel that current railway station field section used does not divide the function of each section utility tunnel in detail, can not satisfy the user demand of the pipe gallery of different positions.
Through the above analysis, the problems and defects of the prior art are as follows: the utility model discloses a utility tunnel's that used of current railway station field section design does not divide in detail each section utility tunnel's function, can not satisfy the user demand of the pipe gallery of different positions.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a comprehensive pipe gallery for a railway station yard section.
The utility model is realized in this way, a comprehensive pipe gallery for a railway station yard section is provided with:
the device comprises a two-cabin section pipe gallery, a three-cabin section pipe gallery, a cross-rail two-cabin section pipe gallery and a cross-rail four-cabin section pipe gallery;
the two-cabin section pipe gallery and the three-cabin section pipe gallery are oppositely arranged on two sides of the railway station yard section, and the two-cabin section pipe gallery passing through the rail and the four-cabin section pipe gallery passing through the rail are respectively arranged at rail passing positions on two sides of the railway station yard section;
the two-cabin section pipe gallery is provided with a water communication cabin and an electric power communication cabin, the three-cabin section pipe gallery is provided with a water heating cabin, a first weak current cabin and a first strong current cabin, the cross-rail two-cabin section pipe gallery is provided with a first water heating cabin and a fourth electric cabin, the cross-rail four-cabin section pipe gallery is provided with a second strong current cabin, a second weak current cabin, a second water heating cabin and a garbage unloading cabin.
Furthermore, the inside left end in water letter cabin is provided with square support frame, square support frame inboard and upper end support respectively and are provided with a feed pipe, the signal cable support frame that the equidistance was arranged about a plurality of is fixed with through the bolt to water letter cabin right-hand member.
Further, the inside left end in electric power communication cabin and four electric cabins all has a plurality of electric power cable support frames of equidistance range from top to bottom through the bolt fastening, the inside right-hand member in electric power communication cabin and four electric cabins all has a plurality of communication cable support frames of equidistance range from top to bottom through the bolt fastening, the middle top in electric power communication cabin and four electric cabins all is fixed with the fire control facility.
Further, the inside left end in water heating letter cabin is fixed with the heating power pipe support frame, heating power pipe support frame inboard and upside are fixed with a heating power pipe respectively, water heating letter cabin right-hand member upside has a plurality of signal support frames through the bolt fastening, water heating letter cabin right-hand member downside is provided with the feed pipe buttress.
Furthermore, a plurality of communication cable support frames which are arranged at equal intervals up and down are fixed on the side walls in the first weak current cabin and the second weak current cabin through bolts.
Furthermore, a plurality of power cable support frames and contact net support frames are fixed to two sides of the interior of the first strong electric cabin and the interior of the second strong electric cabin through bolts respectively, and fire fighting facilities are fixed to the top end of the middle of the first strong electric cabin and the top end of the middle of the second strong electric cabin.
Furthermore, two heating power pipes and a water supply pipe are arranged inside the first water heating cabin and the second water heating cabin.
Furthermore, two ends of the bottom of the garbage discharging cabin are respectively and fixedly provided with a garbage conveying pipeline through a supporting seat, and the upper ends of two sides of the garbage discharging cabin are respectively and fixedly provided with one or more vacuum discharging pipelines through supporting frames.
Further, two cabin section pipe racks, three cabin section pipe racks, cross two cabin section pipe racks in the rail and cross the equal equidistance in every cabin top in four cabin section pipe racks in the rail and be provided with the light.
By combining all the technical schemes, the utility model has the advantages and positive effects that:
according to the utility model, the two-cabin section pipe gallery and the three-cabin section pipe gallery are oppositely arranged on two sides of the railway station yard section, the two-cabin section pipe gallery passing through the rail and the four-cabin section pipe gallery passing through the rail are respectively arranged on two sides of the railway station yard section, the position division of the comprehensive pipe gallery with different functions is fully considered, and the water communication cabin, the electric communication cabin, the water heating communication cabin, the weak electric cabin, the strong electric cabin, the four electric cabins and the garbage unloading cabin are arranged, so that the laying of different pipeline lines can be facilitated, and the use requirements of the pipe galleries at different positions can be met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a two-compartment cross-section pipe gallery provided by an embodiment of the utility model.
Fig. 2 is a schematic structural diagram of a three-chamber cross-section pipe gallery provided by the embodiment of the utility model.
Fig. 3 is a schematic structural diagram of a cross-rail two-cabin section pipe gallery provided by the embodiment of the utility model.
Fig. 4 is a schematic structural diagram of a cross-rail four-cabin section pipe gallery provided by the embodiment of the utility model.
In the figure: 1. two cabin section pipe galleries; 2. a three-cabin section pipe gallery; 3. passing the rail to form a two-cabin section pipe gallery; 4. passing through a rail four-cabin section pipe gallery; 5. a water letter cabin; 6. a power communication compartment; 7. a water heating communication cabin; 8. a first weak current compartment; 9. a first strong electric compartment; 10. a second strong electric cabin; 11. a second weak current compartment; 12. a second water heating compartment; 13. a garbage discharge cabin; 14. a square support frame; 15. a water supply pipe; 16. a signal cable support frame; 17. a power cable support frame; 18. a communication cable support; 19. fire-fighting equipment; 20. a heat pipe support frame; 21. a heat pipe; 22. a signal support frame; 23. a water supply pipe buttress; 24. a first water heating compartment; 25. a four-electric cabin; 26. a waste conveying pipeline; 27. a vacuum sewage discharge pipeline; 28. an illuminating lamp.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In view of the problems in the prior art, the present invention provides a utility tunnel for a rail yard section, which is described in detail below with reference to the accompanying drawings.
The railway station takes a station as a center, both sides of an uplink line and a downlink line of a line are provided with an incoming signal machine and an outgoing signal machine, and the station is characterized in that the incoming signal machines on both sides serve as boundaries and belong to the station. The departure yard, the passenger waiting hall, the shunting yard, the throat area, the maintenance area, the overhaul area and the like, the drawing line, the locomotive running line and the like are all included in the station yard.
The rail passing is a pipeline used by crossing between railway tracks in the range of two sides of a railway station yard, and the pipeline passes through the lower part of the rail and is used for protecting various pipelines and cables.
As shown in fig. 1 to 4, the utility tunnel for the railway yard section provided by the embodiment of the present invention includes a two-cabin section pipe gallery 1, a three-cabin section pipe gallery 2, an over-rail two-cabin section pipe gallery 3, and an over-rail four-cabin section pipe gallery 4.
The two-cabin section pipe gallery 1 and the three-cabin section pipe gallery 2 are oppositely arranged on two sides of the railway station yard section, and the two-cabin section pipe gallery 3 and the four-cabin section pipe gallery 4 are respectively arranged on the rail passing positions on two sides of the railway station yard section; two cabin section pipe galleries 1 are provided with water communication cabin 5 and electric power communication cabin 6, and three cabin section pipe galleries 2 are provided with water heating communication cabin 7, first light current cabin 8 and first heavy current cabin 9, cross two cabin section pipe galleries 3 of rail and are provided with first water heating cabin 24 and four electric cabins 25, cross four cabin section pipe galleries 4 of rail and be provided with second heavy current cabin 10, second light current cabin 11, second water heating cabin 12 and rubbish and unload dirty cabin 13.
The left end in the water tank 5 in the embodiment of the utility model is provided with a square support frame 14, the inner side and the upper end of the square support frame 14 are respectively provided with a water supply pipe 15 in a supporting way, and the right end of the water tank 5 is fixed with a plurality of signal cable support frames 16 which are arranged at equal intervals up and down through bolts.
In the embodiment of the utility model, a plurality of power cable support frames 17 which are arranged at equal intervals up and down are fixed at the left ends of the interiors of the power communication cabin 6 and the four electric cabins 25 through bolts, a plurality of communication cable support frames 18 which are arranged at equal intervals up and down are fixed at the right ends of the interiors of the power communication cabin 6 and the four electric cabins 25 through bolts, and fire fighting facilities 19 are fixed at the top ends of the middles of the power communication cabin 6 and the four electric cabins 25.
A heating power pipe support frame 20 is fixed at the left end inside a water heating communication cabin 7 in the embodiment of the utility model, a heating power pipe 21 is fixed at the inner side and the upper side of the heating power pipe support frame 20 respectively, a plurality of signal support frames 22 are fixed at the upper side of the right end of the water heating communication cabin 7 through bolts, and a water supply pipe buttress 23 is arranged at the lower side of the right end of the water heating communication cabin 7.
In the embodiment of the utility model, a plurality of communication cable support frames 18 which are arranged at equal intervals are fixed on the inner side walls of the first weak current cabin 8 and the second weak current cabin 11 through bolts.
In the embodiment of the utility model, a plurality of power cable support frames 17 and contact net support frames are respectively fixed on two sides of the interior of the first power module 9 and the second power module 10 through bolts, and a fire fighting facility 19 is fixed at the top end of the middle of the first power module 9 and the second power module 10.
The first water heating chamber 24 and the second water heating chamber 12 in the embodiment of the utility model are respectively provided with two heat pipes 21 and a water supply pipe 15.
In the embodiment of the utility model, two ends of the bottom of the garbage discharging cabin 13 are respectively fixed with a garbage conveying pipeline 26 through a supporting seat, and the upper ends of two sides of the garbage discharging cabin 13 are respectively fixed with one or more vacuum discharging pipelines 27 through supporting frames.
The top of each cabin in the two-cabin section pipe gallery 1, the three-cabin section pipe gallery 2, the over-rail two-cabin section pipe gallery 3 and the over-rail four-cabin section pipe gallery 4 in the embodiment of the utility model is provided with the illuminating lamps 28 at equal distance.
When the utility model is used, the number of the pipeline of the corridor is ensured in order to meet the requirement of the pipeline of the corridor; the section design refers to city utility tunnel standard, compromises the operation management demand simultaneously, and the general condition piping lane headroom control is at 2.4m, and the width is according to the adjustment of corridor pipeline demand.
Porch pipeline meter
According to the blanking length of various pipeline pipelines in the comprehensive pipe gallery, the hoisting size of the hoisting opening is mainly determined according to the specification of the hoisted pipeline, and the hoisting length of the water supply pipe 15 is more than or equal to 6 meters. According to the utility model, lifting ports are arranged on the interlayer of the open cut section according to the type of the pipeline of the corridor, and are generally positioned on the interlayer of the power cabin, the net size of the lifting ports is 2.5m (length) multiplied by 1.2 (width) m, the lifting ports are positioned on the interlayer of the water tank 5, and the net size is 6.5m (length) multiplied by 1.4 (width) m. The upper part of the lifting opening adopts a concrete prefabricated strip-shaped cover plate which is arranged under the green belt. When the pipeline is laid and repaired, the cover plate is opened to lay or maintain the pipeline. The node arrangement of the hoisting port needs to be combined with a green isolation belt, the influence on the road landscape is fully considered, the node arrangement is generally designed to be a low-level type, and a closed waterproof measure is made.
First, comprehensive pipe gallery internal pipeline design
1.1 Water supply and drainage pipeline
The water supply pipe 15 and the regenerated water pipe are made of steel pipes, and the joints are in rigid connection. The distance between the water supply pipe buttresses 23 is not more than 6 m, and the pipeline supporting form, distance and fixing mode are determined by calculation and meet the relevant regulations of the existing national standard of the design code of the pipeline structure of the water supply and drainage engineering GB 50332.
1.2 thermal pipeline
The pipeline of the heating power pipe 21 in the pipe gallery is laid by compensation, and a heating device is not arranged in the pipe gallery, so that the partial pipeline is provided with heat preservation measures. And a thermal compensation measure is considered to be set, and a thrust-free sleeve compensator is selected as the compensator.
1.3 Power Cable
The power cables in the pipe gallery are flame-retardant or non-combustible cables, are laid along the support and are arranged from top to bottom according to the voltage grade from high to low, and 35mm gaps are formed among the cables on the same layer of support. When the working cable and the standby cable of the same important loop need to be subjected to fire-retardant separation, the cable and the standby cable are preferably arranged on brackets at different levels. The cables of two or more power supply loops for supplying power to the primary load are arranged on the supports on different layers, and fire-proof separation measures are adopted.
Except the case of single-core cables for alternating current systems, the clear distance between the cables should not be less than 35mm, and not less than 1 time of the outer diameter of the cables. When the power cable and the control cable of 1kV or below and the power cable of more than 1kV level are laid in parallel, the clear distance is not less than 150 mm.
Second, the embodiment of the subsidiary facility
2.1 fire fighting System
Superfine dry powder fire extinguishing system
1. Range of fire extinguishing
The pipelines accommodated by the comprehensive pipe rack mainly comprise a power cable, a contact net cable, a communication information optical cable, a signal optical cable, a water supply pipe 15, a heat pipe 21 and the like. According to the analysis of the fire reason in the utility tunnel, the power cable is an object which is easy to cause fire, and needs to be protected by a superfine dry powder fire extinguishing system.
2. Portable fire extinguisher
In the utility tunnel, according to the technical specification of urban utility tunnel engineering (GB50838-2015) 7.1.8, fire extinguishing equipment is arranged along the line, at the entrance and exit of people, at the escape opening and the like in the utility tunnel, the arrangement distance of the fire extinguishing equipment is not more than 50m, and the configuration of the fire extinguisher is in accordance with the relevant regulations of the existing national standard 'configuration design specification of fire extinguisher' GB 50140. This engineering utility tunnel is medium danger class according to the conflagration danger class, and the conflagration kind is A class and E class. A portable ammonium phosphate dry powder fire extinguisher is required to be arranged in each cabin, the portable ammonium phosphate dry powder fire extinguishers are respectively arranged at the position of a fire door and below a feeding port, a ventilation port and an escape opening, 2 fire extinguishers are arranged at each position, the type of the fire extinguishers is MF/ABC3, and 3kg of fire extinguishing agents are filled.
3. In the comprehensive pipe gallery
The longitudinal ventilation mode is adopted, and according to the characteristics of pipelines in each cabin, the method specifically comprises the following steps: each pipeline cabin is provided with a mechanical air supply and exhaust system according to each fireproof subarea, so that the air quantity required by heating of the cable can be removed under normal working conditions, and a working environment of not more than 40 degrees can be provided for maintenance and management personnel. And closing the smoke exhaust fire prevention valve and the smoke exhaust fan under the fire working condition. And after the fire is extinguished, starting the fan for ventilation.
Each fire-proof subarea adopts an independent ventilation and smoke-discharging system, two ends of each subarea are respectively provided with a ventilation opening, and a mechanical air (smoke) sending (discharging) machine is arranged in each ventilation opening. The ventilation quantity meets the requirements that normal ventilation is not less than 2 times/h, and ventilation is not less than 6 times/h after a fire disaster. Meanwhile, the temperature in the ditch is reduced to below 36 ℃ under the condition that the running time of the fan is not more than 30 minutes, so that the maintenance is convenient for people to get off.
4. Power supply selection
The utility tunnel in the range of the railway station yard leads two 10kV power supplies from the distribution station in the range of the yard; the general speed passenger car service station, the locomotive service park locomotive return section and the utility tunnel in the range of the motor car application station lead two paths of 10kV power supplies from the 10kV power distribution station of the vehicle section.
The power substations of all the subareas are supplied with power by a looped network, and two loops of 10kV power supplies are used at the same time and are mutually standby.
5. Distribution of load
The electric load in the pipe gallery mainly comprises water supply and drainage, a heating and ventilating air conditioner, a ventilation fan, communication information equipment and a pipe gallery lighting load. The load statistics are given in the table below.
Load statistical table
6. Piping lane lighting design
And normal lighting and emergency lighting are arranged in the comprehensive pipe rack.
The lighting lamp 28 is installed at the top of the pipe gallery, the average illumination of general illumination of the sidewalk in the pipe gallery is not less than 15 lx, the minimum illumination is not less than 5 lx, and the local illumination at the entrance and the equipment operation position can be improved to 100 lx. The emergency lighting adopts an intelligent emergency lighting and evacuation indicating system, the illumination of the emergency evacuation lighting is not less than 0.5 lx, and the emergency time is not less than 90 min; the distance between the emergency lamps is 10 m; the safety exit marker lamp is installed above the fire door of the pipe gallery entrance and each fire-proof subarea, the light evacuation indicator is arranged below the floor height of 1.0m, and the distance is not more than 10 m. The lighting lamp 28 in the pipe gallery adopts a waterproof and moistureproof fluorescent lamp, the protection grade is not lower than IP54, and the lighting lamp has a protection measure for preventing external force collision; the lamp is an electric shock protection class I device, and a reachable conductive part is reliably connected with a protection wire (PE) wire; an electronic rectifier is used which can be lit up quickly. The circuit of the common illuminating lamp 28 is provided with a residual current action protective measure with the action current not more than 30 mA; the emergency lighting, the evacuation indicator and the safety exit marker lamp are powered by 24V safety voltage.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made by those skilled in the art within the technical scope of the present invention disclosed herein, which is within the spirit and principle of the present invention, should be covered by the present invention.
Claims (9)
1. The utility model provides a used utility tunnel of railway station field section, its characterized in that, the used utility tunnel of railway station field section is provided with: the device comprises a two-cabin section pipe gallery, a three-cabin section pipe gallery, a cross-rail two-cabin section pipe gallery and a cross-rail four-cabin section pipe gallery;
the two-cabin section pipe gallery and the three-cabin section pipe gallery are oppositely arranged on two sides of the railway station site section, and the two-cabin section pipe gallery passing through the rail and the four-cabin section pipe gallery passing through the rail are respectively arranged at the rail passing position of the railway station site section;
the two-cabin section pipe gallery is provided with a water communication cabin and an electric power communication cabin, the three-cabin section pipe gallery is provided with a water heating cabin, a first weak current cabin and a first strong current cabin, the cross-rail two-cabin section pipe gallery is provided with a first water heating cabin and a fourth electric cabin, the cross-rail four-cabin section pipe gallery is provided with a second strong current cabin, a second weak current cabin, a second water heating cabin and a garbage unloading cabin.
2. The utility tunnel for the railway yard section as claimed in claim 1, wherein a square support frame is provided at the left end inside the water tank, a water supply pipe is supported and provided at the inner side and the upper end of the square support frame, respectively, and a plurality of signal cable support frames arranged at equal intervals are fixed at the right end of the water tank through bolts.
3. The utility tunnel for the railway yard section of claim 1, wherein a plurality of power cable support frames are fixed to the left inner ends of the power communication cabin and the four electric cabins by bolts, a plurality of communication cable support frames are fixed to the right inner ends of the power communication cabin and the four electric cabins by bolts, and fire fighting facilities are fixed to the top middle ends of the power communication cabin and the four electric cabins.
4. The utility tunnel for the railway yard section according to claim 1, wherein a heating pipe support frame is fixed to the left end inside the water heating communication cabin, a heating pipe is fixed to the inner side and the upper side of the heating pipe support frame, a plurality of signal support frames are fixed to the upper side of the right end of the water heating communication cabin through bolts, and a water supply pipe buttress is arranged on the lower side of the right end of the water heating communication cabin.
5. The utility tunnel for a rail yard section of claim 1 wherein a plurality of communication cable support frames are bolted to the inside side walls of the first and second light duty compartments and are arranged equidistantly from top to bottom.
6. The utility tunnel for the rail yard section of claim 1, wherein a plurality of power cable support frames and contact net support frames are fixed to two sides of the interior of the first and second power modules respectively through bolts, and fire fighting facilities are fixed to the top ends of the middle of the first and second power modules.
7. The utility tunnel for the railway yard section according to claim 1, wherein two heating pipes and one water supply pipe are provided inside each of the first and second heating compartments.
8. The utility tunnel for the railway yard section as claimed in claim 1, wherein a garbage conveying pipeline is fixed to each of two ends of the bottom of the garbage unloading cabin through a support seat, and one or more vacuum unloading pipelines are fixed to each of two upper ends of the garbage unloading cabin through a support frame.
9. The utility tunnel for a rail yard section of claim 1 wherein each of the deck tops of the two deck section pipe gallery, the three deck section pipe gallery, the over-track two deck section pipe gallery and the over-track four deck section pipe gallery are equidistantly provided with a light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123197459.XU CN215630133U (en) | 2021-12-20 | 2021-12-20 | Comprehensive pipe gallery for railway station yard section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123197459.XU CN215630133U (en) | 2021-12-20 | 2021-12-20 | Comprehensive pipe gallery for railway station yard section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215630133U true CN215630133U (en) | 2022-01-25 |
Family
ID=79934909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123197459.XU Active CN215630133U (en) | 2021-12-20 | 2021-12-20 | Comprehensive pipe gallery for railway station yard section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215630133U (en) |
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2021
- 2021-12-20 CN CN202123197459.XU patent/CN215630133U/en active Active
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Effective date of registration: 20220217 Address after: 100844 Fuxing Road 10, Beijing, Haidian District Patentee after: China National Railway Group Co.,Ltd. Patentee after: China Railway Design Group Limited Address before: 300308 No.109, East 7th Road, Tianjin Binhai New Area pilot free trade zone (Airport Economic Zone) Patentee before: CHINA RAILWAY DESIGN Corp. |