CN210629023U - Tubular bus AC/DC power transmission system in tunnel - Google Patents
Tubular bus AC/DC power transmission system in tunnel Download PDFInfo
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- CN210629023U CN210629023U CN201921605340.1U CN201921605340U CN210629023U CN 210629023 U CN210629023 U CN 210629023U CN 201921605340 U CN201921605340 U CN 201921605340U CN 210629023 U CN210629023 U CN 210629023U
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Abstract
A tubular bus alternating current-direct current transmission system in a tunnel comprises a bus support and a tubular bus, wherein the bus support is fixed on the wall of the tunnel, the tubular bus is horizontally fixed on the bus support through a fast-assembling pipe hoop, and the tubular bus is provided with a power taking device; the tubular bus is characterized in that the ends of the tubular bus are coaxially fixed through a connecting pipe joint in a compression joint mode or are coaxially connected through a corrugated pipe joint in a sleeved mode, and the head end or the tail end of the tubular bus is connected with the double-core cable through an h-shaped connecting device. The utility model can adapt to the tunnel trend rapidly, and can automatically adjust the expansion with heat and contraction with cold of the tubular bus, thereby ensuring the safe and reliable connection of the whole system; the h-shaped connecting device is adopted to realize the quick connection of the double-core cable and the two tubular buses, and simultaneously, the dustproof, waterproof and safe insulating use requirements are met.
Description
Technical Field
The utility model belongs to the technical field of the low pressure transmission of electricity, concretely relates to cast generating line alternating current-direct current transmission system in tunnel.
Background
At present, a low-voltage alternating-current power transmission system is mostly adopted in a power transmission system in a tunnel, and the system mainly adopts a cable for power supply, so that the following problems exist: firstly, the line loss is large, and the transmission capacity is small; the number of cables is large, the arrangement is complex, the troubleshooting difficulty is high, and the maintenance cost is high; thirdly, facilities such as cable ditches, cable tunnels and the like need to be built for cable laying, the civil engineering cost is high, and the construction period is long; fourthly, the cable is easy to be damaged by external force such as water, fire, rat and the like, and has poor environmental interference resistance and short service life.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cast generating line alternating current-direct current transmission system in tunnel to solve the not enough of prior art.
The utility model adopts the technical proposal that: a tubular bus alternating current-direct current transmission system in a tunnel comprises a bus support and two tubular buses, wherein the bus support is fixed on the wall of the tunnel, the tubular buses are horizontally fixed on the bus support side by side through quick-mounting pipe hoops, a power taking device is arranged on each tubular bus, the ends of the tubular buses are coaxially fixed in a compression joint mode through connecting pipe joints or coaxially connected in a sleeved mode through corrugated pipe joints, the connecting pipe joints and the corrugated pipe joints are arranged at intervals, and insulating layers are coated on the outer surfaces of the connecting pipe joints and the corrugated pipe joints; the head ends or the tail ends of the two tubular buses are connected with the double-core cable through an h-shaped connecting device; the h-shaped connecting device is provided with an insulating three-way pipe, the end of the double-core cable is inserted into the main pipe of the insulating three-way pipe and then is divided into two branches, and the two branches respectively enter the two branch pipes of the insulating three-way pipe and then the tail ends of the two branch pipes are crimped with cable connecting joints; insulating pipes are respectively sleeved on the end heads of the two tubular buses in a sleeved mode, and tubular bus connecting joints are respectively pressed in the end heads of the two tubular buses in a pressed mode; and after the cable connecting joints are fixedly connected with the corresponding tubular bus connecting joints respectively, the two support pipes are connected with the corresponding insulating pipes in a sealing manner respectively.
The left end part of the cable connecting joint is a connecting flat pipe, the right end part of the cable connecting joint is a first connecting plate, and the first connecting plate is provided with a first connecting hole; the right end part of the tubular bus connecting joint is a connecting circular pipe, the left end part of the tubular bus connecting joint is a second connecting plate, and a second connecting hole is formed in the second connecting plate; the two branch circuits are correspondingly inserted into the connecting flat tubes and are pressed together, and the connecting circular tubes are correspondingly inserted into the ends of the tubular buses and are pressed together; and the first connecting plate is fixedly connected with the second connecting plate through a bolt pair penetrating through the first connecting hole and the second connecting hole after being overlapped.
One of the two branch pipes is coaxial with the main pipe, the branch pipe is connected with the corresponding insulating pipe in a sealing way through a pipe hoop, the other branch pipe forms an included angle with the main pipe, and the branch pipe is connected with the corresponding insulating pipe in a sealing way through the pipe hoop and the bent pipe; the ports of the main pipe and the insulating pipe are sleeved with sealing covers.
The bus support consists of a fixed support and an adjusting support, the fixed support is fixed on the tunnel wall, the adjusting support is hinged to the fixed support, and the upper end face of the adjusting support is kept horizontal through the adjustment of the adjusting support relative to the fixed support in a rotating mode; the tubular bus is horizontally fixed on the upper end surface of the adjusting bracket through the fast-assembling pipe hoop.
Compared with the prior art, the utility model discloses beneficial effect who has:
1. the tubular bus is used as a power transmission line, so that the mechanical strength is high, the loss is low, the current-carrying capacity is large, the insulating property is good, the reliability is high, the fault is easy to check, and the maintenance cost is low.
2. The tubular bus is erected in the air, so that the installation is simple, the construction efficiency is high, and the cost is low; and electric power accidents caused by surface flooding, mouse damage and the like can be avoided, the environmental interference resistance is strong, and the service life is long.
3. The tubular bus adopts the connection pipe joint and the corrugated pipe joint to be connected at intervals, so that the tunnel trend can be quickly adapted, the expansion with heat and the contraction with cold of the tubular bus can be automatically adjusted, and the safe and reliable connection of the whole system can be ensured.
4. The tubular bus adopts the h-shaped connecting device to be in compression joint with the double-core cable, so that the quick connection between the double-core cable and the tubular bus is realized, the connection is reliable, the connection requirements of the double-core cable and the head end and the tail end of the tubular bus are met, and the use requirements of dust prevention, water prevention and safety insulation are met.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a sectional view of the connection structure of the double-core cable and the tubular bus bar of the present invention;
FIG. 3 is a schematic view of the h-shaped connecting device according to the present invention;
FIG. 4 is a schematic view of the internal connection joint structure of the h-shaped connection device of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 1 at C;
FIG. 6 is an enlarged view of a portion of FIG. 1 at D;
fig. 7 is a schematic structural diagram of a second embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the drawings and the following detailed description of the embodiments with reference to fig. 1 to 7.
A tubular bus alternating current-direct current transmission system in a tunnel is provided with a bus support 1 and two tubular buses 2, wherein the bus support 1 is fixed on the wall of the tunnel, the tubular buses 2 are horizontally fixed on the bus support 1 side by side through fast-assembling pipe hoops 3, and the tubular buses 2 are provided with electricity taking devices 4; the ends of the tubular bus 2 are coaxially fixed in a compression joint mode through a connecting pipe joint 5 or coaxially connected in a sleeved mode through a corrugated pipe joint 6, the connecting pipe joint 5 and the corrugated pipe joint 6 are arranged at intervals, and insulating layers are coated on the outer surfaces of the connecting pipe joint 5 and the corrugated pipe joint 6; the head ends or the tail ends of the two tubular buses 2 are connected with a double-core cable 7 through an h-shaped connecting device 8; the h-shaped connecting device 8 is provided with an insulating three-way pipe 9, the end of the double-core cable 7 is inserted into a main pipe 9-1 of the insulating three-way pipe 9 and then is divided into two branches 7-1, and the two branches 7-1 respectively enter two branch pipes 9-2 of the insulating three-way pipe 9 and then the tail ends of the two branch pipes are crimped with a cable connecting joint 10; insulating pipes 11 are respectively sleeved on the end heads of the two tubular buses 2, and tubular bus connecting joints 12 are respectively pressed in the end heads of the two tubular buses 2; after the cable connecting joints 10 are fixedly connected with the corresponding tubular bus connecting joints 12 respectively, the two support pipes 9-2 are connected with the corresponding insulating pipes 11 in a sealing mode respectively.
The left end part of the cable connector 10 is provided with a connecting flat tube 10-1, the right end part is provided with a first connecting plate 10-2, and the first connecting plate 10-2 is provided with a first connecting hole 10-3; the right end part of the tubular bus connecting joint 12 is a connecting circular tube 12-1, the left end part is a second connecting plate 12-2, and the second connecting plate 12-2 is provided with a second connecting hole 12-3; the two branches 7-1 are correspondingly inserted into the connecting flat tubes 10-1 and are pressed together, and the connecting circular tube 12-1 is correspondingly inserted into the end head of the tubular busbar 2 and is pressed together; the first connecting plate 10-2 and the second connecting plate 12-2 are overlapped and then fixedly connected through a bolt pair 16 penetrating through the first connecting hole 10-3 and the second connecting hole 12-3. The connecting flat tubes 10-1, the first connecting plates 10-2, the connecting circular tubes 12-1 and the second connecting plates 12-2 are all made of copper materials.
One of the two branch pipes 9-2 is coaxial with the main pipe 9-1, and is hermetically connected with the corresponding insulating pipe 11 through a pipe hoop 13, the other branch pipe forms an included angle with the main pipe 9-1, and is hermetically connected with the corresponding insulating pipe 11 through the pipe hoop 13 and an elbow pipe 14; sealing covers 15 are sleeved on the main pipe 9-1 and the end openings of the insulating pipes 11.
The bus support 1 consists of a fixed support 1-1 and an adjusting support 1-2, the fixed support 1-1 is fixed on the tunnel wall, the adjusting support 1-2 is hinged on the fixed support 1-1, and the upper end face of the adjusting support 1-2 is kept horizontal through the rotation adjustment of the adjusting support 1-2 relative to the fixed support 1-1; the tubular bus 2 is horizontally fixed on the upper end surface of the adjusting bracket 1-2 through the fast-assembling pipe hoop 3.
The structure and the installation and use method of the electricity taking device 4 are completely the same as those of the prior patent application (application number: 201821099202.6, grant publication number: CN208539120U), and are not described herein again. The output end of the electricity taking device 4 is connected with a load 18 through a branch line 17, and a protective cover 19 is arranged on the periphery of the electricity taking device 4.
The bellows joint 6 is identical to the structure and installation and use method of the prior patent application (application number: 201821099139.6, granted publication number: CN208539506U), and is not described in detail herein.
The connecting pipe joint 5 is a cylindrical copper pipe, and the compression joint mode of the connecting pipe joint and the tubular bus 2 is completely the same as that of the existing pipe.
Example 1: referring to fig. 1, a fixing support 1-1 is fixed on a tunnel wall, two tubular buses 2 are horizontally fixed on an adjusting support 1-2 through a quick-mounting pipe hoop 3, the tubular buses 2 are guaranteed to be parallel to the ground through rotation adjustment of the adjusting support 1-2 along an arc-shaped groove on the fixing support 1-1, and a double-core cable 7 is connected with the head ends or tail ends of the two tubular buses 2 through an h-shaped connecting device 8 in a compression joint mode, so that input or output of a power supply or electricity taking of electric equipment is achieved. And the tubular bus 2 is connected to form a power supply trunk circuit by arranging the connecting pipe joints 5 and the corrugated pipe joints 6 at intervals between the ends of the tubular bus 2, the arrangement quantity of the connecting pipe joints 5 and the corrugated pipe joints 6 at intervals is determined by design according to the trend of a tunnel and the length of the tunnel, the power taking device 4 is sleeved on the periphery of the tubular bus 2, the output end of the power taking device 4 is connected with the load 18 through a branch line 17, and the requirements of safe power distribution and power utilization in the tunnel are met.
Example 2: referring to fig. 7, the basic structure is the same as that of embodiment 1, except that four tubular buses 2 are horizontally fixed on an adjusting bracket 1-2 through a quick-mounting pipe hoop 3 to form two power supply loops, one loop is a normal power supply loop, the other loop is a standby power supply loop, and the two loops can be switched rapidly to ensure normal power supply in a tunnel.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a tubular busbar alternating current-direct current transmission system in tunnel has bus support (1), two tubular busbar (2), bus support (1) is fixed on the tunnel wall, tubular busbar (2) are fixed on bus support (1) through fast-assembling ferrule (3) level side by side, and are equipped with on tubular busbar (2) and get electric installation (4), its characterized in that: the end heads of the tubular bus (2) are coaxially fixed through a connecting pipe joint (5) in a compression joint mode or coaxially connected through a corrugated pipe joint (6) in a sleeved mode, the connecting pipe joint (5) and the corrugated pipe joint (6) are arranged at intervals, and insulating layers are coated on the outer surfaces of the connecting pipe joint (5) and the corrugated pipe joint (6); the head ends or the tail ends of the two tubular buses (2) are connected with the double-core cable (7) through an h-shaped connecting device (8); the h-shaped connecting device (8) is provided with an insulating three-way pipe (9), the end of the double-core cable (7) is inserted into a main pipe (9-1) of the insulating three-way pipe (9) and then is divided into two branches (7-1), and the two branches (7-1) respectively enter two branch pipes (9-2) of the insulating three-way pipe (9) and then the tail ends of the two branches are crimped with a cable connecting joint (10); insulating pipes (11) are respectively sleeved outside the end heads of the two tubular buses (2), and tubular bus connecting joints (12) are respectively pressed in the end heads of the two tubular buses (2); after the cable connecting joints (10) are fixedly connected with the corresponding tubular bus connecting joints (12), the two branch pipes (9-2) are respectively connected with the corresponding insulating pipes (11) in a sealing manner.
2. The tubular busbar alternating current-direct current transmission system in the tunnel according to claim 1, characterized in that: the left end part of the cable connecting joint (10) is provided with a connecting flat pipe (10-1), the right end part of the cable connecting joint is provided with a first connecting plate (10-2), and the first connecting plate (10-2) is provided with a first connecting hole (10-3); the right end part of the tubular bus connecting joint (12) is a connecting circular pipe (12-1), the left end part of the tubular bus connecting joint is a second connecting plate (12-2), and a second connecting hole (12-3) is formed in the second connecting plate (12-2); the two branches (7-1) are correspondingly inserted into the connecting flat tubes (10-1) and are pressed together, and the connecting circular tube (12-1) is correspondingly inserted into the end head of the tubular bus (2) and is pressed together; the first connecting plate (10-2) and the second connecting plate (12-2) are overlapped and then fixedly connected through a bolt pair (16) penetrating through the first connecting hole (10-3) and the second connecting hole (12-3).
3. The tubular busbar alternating current-direct current transmission system in the tunnel according to claim 1 or 2, characterized in that: one of the two branch pipes (9-2) is coaxial with the main pipe (9-1), the branch pipe is connected with the corresponding insulating pipe (11) in a sealing way through a pipe hoop (13), the other branch pipe forms an included angle with the main pipe (9-1), and the branch pipe is connected with the corresponding insulating pipe (11) in a sealing way through the pipe hoop (13) and the bent pipe (14); sealing covers (15) are sleeved on the ports of the main pipe (9-1) and the insulating pipe (11).
4. The tubular busbar alternating current-direct current transmission system in the tunnel according to claim 2, characterized in that: the bus support (1) consists of a fixed support (1-1) and an adjusting support (1-2), the fixed support (1-1) is fixed on the tunnel wall, the adjusting support (1-2) is hinged to the fixed support (1-1), and the upper end face of the adjusting support (1-2) is kept horizontal through the rotation adjustment of the adjusting support (1-2) relative to the fixed support (1-1); the tubular bus (2) is horizontally fixed on the upper end surface of the adjusting bracket (1-2) through the fast-assembling pipe hoop (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605340.1U CN210629023U (en) | 2019-09-25 | 2019-09-25 | Tubular bus AC/DC power transmission system in tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605340.1U CN210629023U (en) | 2019-09-25 | 2019-09-25 | Tubular bus AC/DC power transmission system in tunnel |
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| Publication Number | Publication Date |
|---|---|
| CN210629023U true CN210629023U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921605340.1U Active CN210629023U (en) | 2019-09-25 | 2019-09-25 | Tubular bus AC/DC power transmission system in tunnel |
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| CN (1) | CN210629023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114583639A (en) * | 2020-12-01 | 2022-06-03 | 中国移动通信集团设计院有限公司 | AC and DC general busway, busway detection method and detection system |
-
2019
- 2019-09-25 CN CN201921605340.1U patent/CN210629023U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114583639A (en) * | 2020-12-01 | 2022-06-03 | 中国移动通信集团设计院有限公司 | AC and DC general busway, busway detection method and detection system |
| CN114583639B (en) * | 2020-12-01 | 2023-04-07 | 中国移动通信集团设计院有限公司 | AC/DC universal bus duct, bus duct detection method and bus duct detection system |
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