Tram station layout structure

Abstract

The present invention relates to a tram station layout structure, including an island station, at least one end of which is surrounded by two tracks to form a sandwich area, a box-type traction substation is arranged in at least one of the sandwich areas, and the box body of the box-type traction substation is at least partially buried underground. The tram station layout structure provided by the present invention makes full use of the land resources of the sandwich areas at both ends of the tram island station by arranging the box-type traction substation in the sandwich area at the end of the island station, avoids arranging the box-type traction substation in the station and occupying the space in the station, and thus can optimize the station layout. The narrow and long box-type traction substation can be closely matched with the sandwich area of ​​the narrow and long terrain, and does not affect the structural safety of the track and the driving safety; the box-type traction substation is arranged downward, which can avoid affecting the vision of the driver and passengers, and takes into account the landscape effect, so it has promotion value.

Description

Technical Field

[0001] The invention belongs to the technical field of tram engineering, and in particular relates to a tram station layout structure. Background Art

[0002] Tram projects have no area restrictions for station buildings, so most tram stations adopt the island-type station format, which saves investment and is convenient for transfers. A sandwich is formed between the two tracks at both ends of the island station. Moreover, most stations use curved track layouts at both ends to connect the main line within the station and the section main line, thus forming two trumpet-shaped areas at both ends of the station. This sandwich has no practical utilization value due to the influence of the tracks.

[0003] Traction substation is a place where the electric energy sent from power plants through power transmission lines is converted into the voltage suitable for locomotives and vehicles, and then distributed to the contact network or contact rail. Tramway projects generally use box-type traction substations, and generally the traction substation is co-located with the station, arranged in the station building, which accordingly occupies space in the station. Summary of the invention

[0004] The present invention relates to a tram station arrangement structure, which can at least solve some defects of the prior art.

[0005] The present invention relates to a tram station layout structure, including an island station, at least one end of which is surrounded by two tracks to form a sandwich area, a box-type traction substation is arranged in at least one of the sandwich areas, and the box body of the box-type traction substation is at least partially buried underground.

[0006] As one of the implementation modes, the box includes a plurality of sub-boxes, each of which is arranged in a row and the arrangement direction is parallel to the length direction of the island station.

[0007] As one of the implementation modes, each of the sub-boxes includes a first sub-box, a second sub-box and a third sub-box arranged in sequence, a DC device and a control device are arranged in the first sub-box, a transformer is arranged in the second sub-box, and a high-voltage cabinet is arranged in the third sub-box, and each electrical device is electrically connected by cables.

[0008] As one of the implementation modes, the sub-boxes are arranged adjacent to each other in sequence, and two adjacent sub-boxes are electrically connected to each other.

[0009] As one of the implementation modes, a terminal cabinet is provided in the box body, and the secondary terminals of the corresponding electrical equipment are installed in the terminal cabinet and are electrically connected to the corresponding electrical equipment through cables.

[0010] As one of the implementation modes, the terminal cabinet is arranged at one end of the box body close to the island station.

[0011] As one of the implementation modes, the box body is divided into an enhanced heat dissipation zone and at least one ordinary heat dissipation zone, the rectifier transformer, power transformer and rectifier of the box-type traction substation are all arranged in the enhanced heat dissipation zone, the enhanced heat dissipation zone is equipped with an air-conditioning refrigeration device, and the ordinary heat dissipation zone is equipped with an exhaust heat dissipation device.

[0012] As one of the implementation modes, a cooling air outlet is provided in the common heat dissipation area, and the cooling air outlet is connected to the air conditioning refrigeration device through an air duct.

[0013] As one of the implementation modes, the top of the box is exposed to the ground to provide an external vent, and a waterproof retaining wall is provided around the exposed portion of the box.

[0014] As one of the implementation modes, an AC panel is arranged in the box body, and the AC panel is respectively connected to each AC power source and corresponding power load of the box-type traction substation.

[0015] As one of the implementation modes, a control device is arranged in the box body, and the control device is installed on the inner wall of the box body and forms a wall-mounted structure.

[0016] As one of the implementation modes, the ring network switch cabinet of the box-type traction substation adopts an air switch cabinet.

[0017] As one of the implementation modes, a video monitoring device is provided in the box, and / or a gas automatic fire extinguishing device is provided in the box.

[0018] As one of the implementation modes, the box body includes a box body and a top cover covering the box body, and the top cover is detachably connected to the box body.

[0019] As one of the embodiments, the top cover includes a plurality of first U-shaped cover plates with openings facing upward and a plurality of second U-shaped cover plates with openings facing downward, the first U-shaped cover plates are arranged in parallel and spaced apart, and the bottom plates are detachably connected to the box body, a window area is formed between two adjacent first U-shaped cover plates, and the second U-shaped cover plates are covered on each window area one by one.

[0020] The present invention has at least the following beneficial effects:

[0021] The tram station layout structure provided by the present invention can optimize the station layout by arranging the box-type traction substation in the sandwich area at the end of the island station, making full use of the land resources in the sandwich area at both ends of the tram island station, avoiding the box-type traction substation being arranged in the station and occupying the space in the station. The narrow and long box-type traction substation can be closely matched with the sandwich area of ​​the narrow and long terrain, without affecting the structural safety of the track and the driving safety; the box-type traction substation is arranged downward, which can avoid affecting the vision of the driver and passengers and take into account the landscape effect, so it has promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of a tram station layout structure provided by an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the structure of a box-type traction substation provided by an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of the plan layout of a box-type traction substation provided by an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the layout of the inspection passage and the escape passage of the box-type traction substation provided by an embodiment of the present invention;

[0027] Figure 5 A schematic structural diagram of a top cover of a box-type traction substation provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figure 1-Figure 4An embodiment of the present invention provides a tram station layout structure, including an island station, at least one end of which is surrounded by two tracks to form a sandwich area, and a box-type traction substation 1 is arranged in at least one of the sandwich areas, and the box body of the box-type traction substation 1 is at least partially buried underground.

[0030] Generally, the above-mentioned sandwich area is in a trumpet shape, that is, it is gradually tapered from the end close to the island station to the end far away from the island station; generally, the above-mentioned sandwich area is formed at both ends of the above-mentioned island station; generally, a group of box-type traction substations 1 are arranged in an island station, so it can be arranged in one of the sandwich areas.

[0031] The box-type traction substation 1 is generally long. For example, the size of a typical box-type traction substation 1 is length × width × height = 13m × 4.1m × 3.4m. Therefore, this narrow and long substation is suitable for being arranged in a sandwich area that is also narrow and long, especially a trumpet-shaped sandwich area. On the premise of meeting the limit requirements, it also has sufficient space for operators to move around. Under the existing technical system, the box-type traction substation 1 is arranged on the ground, and the box body opens to the outside to facilitate equipment maintenance operations; if this ground layout is still adopted, the protruding box-type traction substation 1 in the sandwich area has a great impact on the vision of the driver and passengers, and the landscape effect is also poor. In this embodiment, the box-type traction substation 1 is sunken, which can better solve the above technical problems. The above-mentioned box-type traction substation 1 can be composed of conventional equipment in the field, and the electrical connection relationship between the various components is also easy to be known to those skilled in the art, so it will not be described in detail here.

[0032] The tram station layout structure provided in this embodiment can optimize the station layout by arranging the box-type traction substation 1 in the sandwich area at the end of the island station, making full use of the land resources in the sandwich area at both ends of the tram island station, avoiding the box-type traction substation 1 being arranged in the station and occupying the space in the station. The narrow and long box-type traction substation 1 can be closely matched with the sandwich area of ​​the narrow and long terrain, without affecting the structural safety of the track and the driving safety; the box-type traction substation 1 is arranged downward to avoid affecting the vision of the driver and passengers, and taking into account the landscape effect, so it has promotion value.

[0033] In a preferred embodiment, Figure 2 and Figure 3, the box includes a plurality of sub-boxes, each of which is arranged in a row and the arrangement direction is parallel to the length direction of the island station. It can be understood that each component equipment is arranged in each sub-box according to the actual equipment composition of the substation and the engineering situation. It is preferred to arrange the sub-boxes in close proximity in sequence, and the two adjacent sub-boxes are mutually conductive, that is, the two adjacent sub-boxes are close to each other and conductive, and all the component equipment can be inspected and maintained by entering the box from one end of the box-type traction substation 1. By designing the box of the box-type traction substation 1 as a split body, the installation, maintenance and accident repair of the box-type traction substation 1 are facilitated.

[0034] Moreover, based on the above-mentioned split box design, it is suitable for the zoning arrangement between the component devices, for example, zoning according to the function of the equipment, which is convenient for centralized management and maintenance and overhaul; in one embodiment, each sub-box includes a first sub-box 111, a second sub-box 112 and a third sub-box 113 arranged in sequence, the first sub-box 111 is arranged with a DC device and a control device, the second sub-box 112 is arranged with a transformer, and the third sub-box 113 is arranged with a high-voltage cabinet, and the electrical devices are electrically connected through cables. The specific electrical connection structure is easily known to those skilled in the art based on the prior art and will not be elaborated here.

[0035] In another embodiment, the equipment can be zoned according to its heat generation, so as to facilitate centralized heat dissipation and refrigeration, improve the heat dissipation and cooling effect, and effectively save refrigeration energy consumption while ensuring the reliable and stable operation of each equipment in the substation; specifically, the box body is divided into an enhanced heat dissipation zone and at least one ordinary heat dissipation zone, and the rectifier transformer, power transformer and rectifier of the box-type traction substation 1 are arranged in the enhanced heat dissipation zone, and the enhanced heat dissipation zone is equipped with an air conditioning and refrigeration device, and the ordinary heat dissipation zone is equipped with an exhaust heat dissipation device. The air conditioning and refrigeration device preferably adopts a central air-conditioning system to ensure constant temperature operation in the enhanced heat dissipation zone; the exhaust heat dissipation device can adopt a conventional strong exhaust device in the prior art, and the specific structure is not described here. Furthermore, a temperature monitoring unit is provided in the ordinary heat dissipation zone to monitor the temperature in the ordinary heat dissipation zone in real time; a cooling air outlet is provided in the ordinary heat dissipation zone, and the cooling air outlet is connected to the air conditioning and refrigeration device through an air duct; in high temperature seasons and other conditions, when the exhaust heat dissipation device cannot meet the heat dissipation requirements, the air conditioning and refrigeration device can be used to transport cold air to the ordinary heat dissipation zone to enhance refrigeration. In particular, if Figure 2 and Figure 3Combined with the above-mentioned box split design structure, the above-mentioned second sub-box 112 can be used as an enhanced heat dissipation area, and the first sub-box 111 and the third sub-box 113 can be used as ordinary heat dissipation areas, which can not only obtain the technical effect brought by the functional zoning of the equipment, but also achieve the technical effect brought by the above-mentioned zoning according to the heat generation of the equipment, and fully ensure the operation reliability, safety and energy-saving effect of the box-type traction substation 1.

[0036] More preferably, if Figure 1 and Figure 4 , the top of the box is exposed to the ground to set the external vent 13; in one embodiment, the exposed height of the box of the traction substation 1 meets the setting of the external vent 13 (for example, 1 / 5 of the height is reserved to set the external vent 13), and the rest of the box is buried to meet the landscape effect requirements; the external vent 13 can be in the form of a shutter 13, etc., which can reduce the rainwater from drifting into the box. Further preferably, Figure 4 A waterproof retaining wall 15 is provided on the periphery of the exposed part of the box to prevent external water from entering the box. In this embodiment, the top elevation of the waterproof retaining wall 15 is preferably higher than the 50-year flood level or the highest water level of waterlogging in the area. In addition, the pressure sealing of the cable pipeline on the box must be ensured to prevent external water from flowing back; a mechanical forced drainage device is installed in the interlayer between the box and the foundation pit, and an automatic liquid level monitoring system is set.

[0037] The above-mentioned situation of providing a refrigeration device / providing an external vent 13 is particularly suitable for a substation 1 using a dry-type transformer; if the above-mentioned substation 1 uses an oil-immersed transformer, the refrigeration device / external vent 13 can be cancelled according to specific circumstances.

[0038] Since the box of the box-type traction substation 1 is at least partially buried, especially in a fully buried or nearly fully buried arrangement, the side wall of the box cannot be opened, resulting in no operating conditions for the wiring installation and maintenance behind the AC switch cabinet, DC switch cabinet, etc., which is not convenient for daily maintenance and accident repair of the substation. In the preferred scheme of this embodiment, a terminal cabinet 12 is provided in the box, and the secondary terminals of the secondary terminals of the corresponding electrical equipment are all installed in the terminal cabinet 12 and are electrically connected to the corresponding electrical equipment through cables. Among them, the corresponding electrical equipment is preferably a cabinet type with a deep cabinet depth including an AC switch cabinet, a DC switch cabinet, etc. By setting the terminal cabinet 12 to centrally arrange the secondary terminals, the secondary circuit can be connected in front of the terminal cabinet 12, which is convenient for the wiring installation, daily maintenance and accident repair of the substation. Further preferably, the terminal cabinet 12 is arranged at one end of the box close to the island station, for example, arranged in the above-mentioned first sub-box 111, which is convenient for the connection of the secondary terminals with other devices and can reduce the length of the connecting cable.

[0039] In an optional embodiment, an AC panel is arranged in the box, and the AC panel is respectively connected to each AC power supply and corresponding power load of the box-type traction substation 1. Accordingly, the 400V switch cabinet can be cancelled. For the AC panel, DC panel, etc. in the box, a maintenance channel behind the cabinet is allowed to be set, so it is easy to operate.

[0040] In an optional embodiment, the control cabinet system configured for the traction substation 1 preferably adopts a wall-mounted structure, that is, the control device in the box is installed on the inner wall of the box and forms a wall-mounted structure; the above-mentioned control device is a conventional device in the field, and the specific structure is not described here. Based on the sunken layout structure of the traction substation 1, the side wall of the box is not designed to be openable, so the side wall of the box can be fully utilized to install the control device, which is convenient for the layout, installation and maintenance of the various components in the traction substation 1, and the traction substation 1 can be miniaturized to a certain extent.

[0041] In an optional embodiment, the ring network switch cabinet of the box-type traction substation 1 adopts an air switch cabinet, that is, an air-insulated ring network switch cabinet, which can avoid the toxic gas leaked after discharge when using an SF6 insulated switch cabinet and cause safety hazards by being deposited in the cabinet.

[0042] In an optional embodiment, a video surveillance device is provided in the box, and / or a gas automatic fire extinguishing device is provided in the box. The video surveillance device can monitor the equipment status in the box, reducing the frequency of patrol personnel entering the box; the use of the gas automatic fire extinguishing device can effectively ensure the safe operation of the box-type traction substation 1. Furthermore, the gas automatic fire extinguishing device is interlocked with the access control system of the box-type traction substation 1. The gas automatic fire extinguishing device is only started when and only when the door is completely closed. The interlocking control method involved is a conventional automatic control method, which does not require additional programming and is easily designed and implemented by technicians in this field based on the prior art. Preferably, both the video surveillance device and the gas automatic fire extinguishing device are provided to fully ensure the safe operation of the above-mentioned box-type traction substation 1.

[0043] In an optional embodiment, escape doors are provided at both ends of the box, and security equipment such as gas masks can be configured inside the box to ensure the personal safety of the operators.

[0044] The structure of the box body of the above-mentioned box-type traction substation 1 is further optimized. The box body includes a box body 16 and a top cover covering the box body 16. The top cover is detachably connected to the box body 16, which can facilitate the maintenance of the equipment in the box, especially the need to lift the equipment in and out in the case of overhaul. Among them, preferably, a hook is provided on the box body 16 to facilitate lifting the box body 16 into the foundation pit for installation. For the detachable connection structure between the above-mentioned top cover and the box body 16, the top cover can be assembled and disassembled, that is, the top cover is an integrated structure; in another embodiment, the above-mentioned top cover adopts a split structure, and one or several split parts can be disassembled as needed, so as to meet the needs of lifting in and out of the single equipment in the box, which is convenient for the maintenance of the box-type traction substation 1.

[0045] In a preferred embodiment, Figure 5 , the top cover includes a plurality of first U-shaped cover plates 17 with openings facing upward and a plurality of second U-shaped cover plates 18 with openings facing downward, each of the first U-shaped cover plates 17 is arranged in parallel and spaced apart, and the bottom plates are detachably connected to the box body 16, a window area is formed between two adjacent first U-shaped cover plates 17, and each of the second U-shaped cover plates 18 covers each window area one by one. Preferably, each first U-shaped cover plate 17 and each second U-shaped cover plate 18 can be made of channel steel; wherein, each first U-shaped cover plate 17 is parallel, that is, the side plates of each first U-shaped cover plate 17 are parallel to each other, and obviously, each second U-shaped cover plate 18 is also parallel to each first U-shaped cover plate 17, that is, the side plates of each second U-shaped cover plate 18 and the side plates of each first U-shaped cover plate 17 are parallel. Figure 5, in each second U-shaped cover plate 18 and the two adjacent first U-shaped cover plates 17, the right side plate of the left first U-shaped cover plate 17 and the left side plate of the right first U-shaped cover plate 17 are both extended into the groove cavity of the second U-shaped cover plate 18, and are detachably connected to the two side plates of the second U-shaped cover plate 18 respectively; in each first U-shaped cover plate 17 and the two adjacent second U-shaped cover plates 18, the right side plate of the left second U-shaped cover plate 18 and the left side plate of the right second U-shaped cover plate 18 are both extended into the groove cavity of the first U-shaped cover plate 17, and are detachably connected to the two side plates of the first U-shaped cover plate 17 respectively. The above-mentioned first U-shaped cover plates 17 and second U-shaped cover plates 18 constitute a mutually nested design structure, which can ensure the closing effect on the top of the box body 16 while one or more of the U-shaped cover plates can be removed as needed, thereby exposing different equipment hoisting windows on the top of the box body 16. The connection between the first U-shaped cover plate 17 and the box body 16 and the connection between the first U-shaped cover plate 17 and the second U-shaped cover plate 18 can be connected by bolts 19 or other conventional detachable assembly methods; the first U-shaped cover plate 17 and the box body 16 and the first U-shaped cover plate 17 and the second U-shaped cover plate 18 can be further sealed, which will not be described in detail here. It can be understood that the two ends of the box body can be closed by the first U-shaped cover plate 17 or the L-shaped cover plate, which can be selected according to the actual situation and landscape requirements, which will not be described in detail here.

[0046] In addition, it is preferred to open a box door 14 on the top cover to facilitate operators to enter and exit the box; the box door 14 preferably adopts a cabin door structure to meet the needs of rainy day inspection operations. In the structure where the top cover includes a first U-shaped cover plate 17 and a second U-shaped cover plate 18, the box door 14 can be opened on one of the first U-shaped cover plates 17, such as the first U-shaped cover plate 17 on the side away from the island station, and of course, it can also be opened on one of the second U-shaped cover plates 18.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tram station layout structure, comprising an island station, wherein at least one end of the island station is surrounded by two tracks to form a sandwich area, characterized in that: A box-type traction substation is arranged in at least one of the sandwich areas, and the box body of the box-type traction substation is at least partially buried underground; A terminal cabinet is provided in the box, and the secondary terminals of the corresponding electrical equipment are installed in the terminal cabinet and are electrically connected to the corresponding electrical equipment through cables respectively; The terminal cabinet is arranged at one end of the box body close to the island station; The side wall of the box body is not designed to be openable, and a control device is arranged in the box body. The control device is installed on the inner wall of the box body and forms a wall-mounted structure; The box body comprises a box body and a top cover covering the box body, wherein the top cover is detachably connected to the box body; a box door is provided on the top cover; The box includes a plurality of sub-boxes, each of which is arranged in a row and the arrangement direction is parallel to the length direction of the island station; each of the sub-boxes is arranged adjacent to each other in sequence, and two adjacent sub-boxes are connected to each other; Each of the sub-boxes includes a first sub-box, a second sub-box and a third sub-box arranged in sequence, the first sub-box is provided with a DC device and a control device, the second sub-box is provided with a transformer, the third sub-box is provided with a high-voltage cabinet, and the electrical devices are electrically connected through cables; The box body is divided into an enhanced heat dissipation area and at least one common heat dissipation area. The rectifier transformer, power transformer and rectifier of the box-type traction substation are arranged in the enhanced heat dissipation area. The enhanced heat dissipation area is equipped with an air conditioning refrigeration device, and the common heat dissipation area is equipped with an exhaust heat dissipation device. The top cover includes a plurality of first U-shaped cover plates with openings facing upward and a plurality of second U-shaped cover plates with openings facing downward, the first U-shaped cover plates are arranged in parallel and spaced apart and the bottom plates are detachably connected to the box body, a window area is formed between two adjacent first U-shaped cover plates, and the second U-shaped cover plates are covered on each window area in a one-to-one correspondence; in each second U-shaped cover plate and two adjacent first U-shaped cover plates, the right side plate of the left first U-shaped cover plate and the left side plate of the right first U-shaped cover plate both extend into the groove cavity of the second U-shaped cover plate, and are detachably connected to the two side plates of the second U-shaped cover plate respectively; in each first U-shaped cover plate and two adjacent second U-shaped cover plates, the right side plate of the left second U-shaped cover plate and the left side plate of the right second U-shaped cover plate both extend into the groove cavity of the first U-shaped cover plate, and are detachably connected to the two side plates of the first U-shaped cover plate respectively; the first U-shaped cover plate and the box body, as well as the first U-shaped cover plate and the second U-shaped cover plate are sealed.

2. The tram station layout structure according to claim 1, characterized in that: A cooling air outlet is provided in the common heat dissipation area, and the cooling air outlet is connected to the air conditioning refrigeration device through an air duct.

3. The tram station layout structure according to claim 1, characterized in that: The top of the box is exposed to the ground to provide an external vent, and a waterproof retaining wall is provided on the periphery of the exposed portion of the box.

4. The tram station layout structure according to claim 1, characterized in that: An AC screen is arranged in the box, and the AC screen is respectively connected to each AC power source and corresponding power load of the box-type traction substation.

5. The tram station layout structure according to claim 1, characterized in that: The ring network switch cabinet of the box-type traction substation adopts an air switch cabinet.

6. The tram station layout structure according to claim 1, characterized in that: The box body is provided with a video monitoring device, and / or the box body is provided with a gas automatic fire extinguishing device.

Images