CN210394989U - System for preventing and treating influence of stray current corrosion of urban rail transit - Google Patents
System for preventing and treating influence of stray current corrosion of urban rail transit Download PDFInfo
- Publication number
- CN210394989U CN210394989U CN201920996839.3U CN201920996839U CN210394989U CN 210394989 U CN210394989 U CN 210394989U CN 201920996839 U CN201920996839 U CN 201920996839U CN 210394989 U CN210394989 U CN 210394989U
- Authority
- CN
- China
- Prior art keywords
- fastener
- rail
- stray current
- preventing
- insulating layer
- 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.)
- Active
Links
Images
Landscapes
- Prevention Of Electric Corrosion (AREA)
Abstract
The utility model relates to a system for preventing and treating urban rail transit stray current corrodes influence, including rail, fastener rail lower bolster, spiral spike, composite insulation layer, fastener bullet strip and blowdown ditch, the both sides of rail are pressed and are covered there is the fastener, the bottom of rail is provided with fastener rail lower bolster, the fastener with fastener rail lower bolster pass through the fastening of spiral spike, the fastener pass through fastener bullet strip with the rail fastening, the cladding of composite insulation layer is on rail web of a rail and rail bottom surface. The system for preventing and treating the influence of the stray current corrosion of the urban rail transit avoids the problem of stray current leakage by adopting a three-layer stray current prevention design. Meanwhile, the composite insulating layer has self-bonding capability, can be bonded by common glue, is simple and convenient to construct, can be directly utilized on the existing rail road line, has strong practicability, and can be directly removed by a dissolving solvent when the composite insulating layer needs to be removed, so that the composite insulating layer is easy to replace.
Description
Technical Field
The utility model relates to an urban rail transit technical field specifically is a system of prevention and cure urban rail transit stray current corrosion influence.
Background
The traction power supply system of urban rail transit engineering in China mainly adopts a traction power supply system of DC1500V (or DC750V) traction net current supply and running rail backflow, a substation supplies power to a train through a contact net or a conductor rail, the contact net, a locomotive and the steel rail form a loop to enable traction current to flow back to a traction substation, and the insulation resistance between the steel rail and a track bed structure or a tunnel is not infinite, so that the traction current cannot flow back to the negative electrode of the traction substation through the steel rail when flowing through the steel rail completely, a part of the traction current leaks onto the track bed structure and the tunnel and flows into the ground, particularly at a supporting point of a steel rail fastener, the insulating treatment of the steel rail is carried out through a rubber base plate and an insulation track distance block in the fastener, but the traction current is easy to leak from the supporting point in actual engineering, the traction current leaked from the upper surface of the steel rail is the traction current, therefore, the insulation performance of the steel rail at a node ①, the insulation point only depends on the steel rail base plate and the track distance block under the insulation, the insulation of the track base plate, the insulation block, the insulation is easy to generate leakage of buried metal pipeline leakage, the leakage of the communication cable, the leakage of the dust leakage, the stray current is easy to be generated at the surface of the insulating track, the insulating bar leakage of the floating joint between the insulation of the insulation fastener, the insulation bar, the floating joint of the floating joint, the floating joint of the floating.
Buried metal pipelines around the subway are not subjected to insulation wrapping treatment, and are easily corroded by stray current of the subway.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a system for preventing and treating urban rail transit stray current corrodes influence to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a system for prevention and cure urban rail transit stray current corrodes influence, includes rail, fastener rail lower bolster, spiral spike, composite insulation layer, fastener bullet strip and blowdown ditch, the both sides of rail are pressed and are covered with the fastener, the bottom of rail is provided with fastener rail lower bolster, the fastener with fastener rail lower bolster pass through the fastening of spiral spike, the fastener pass through fastener bullet strip with the rail fastening, the composite insulation layer cladding is on rail web of a rail and rail bottom surface.
Preferably, the upper surface of the fastener is sprayed with the high-molecular composite coating after the fastener is assembled.
Preferably, the fastener rail lower backing plate and the composite insulating layer are both provided with sewage draining grooves.
Preferably, the both sides of fastener rail bottom suspension board all are provided with the blowdown ditch, and the blowdown ditch is eaves formula to the axle symmetry setting of blowdown ditch about fastener rail bottom suspension board.
Preferably, the composite insulation layer is wrapped in sections or in full length along the longitudinal length of the rail.
Preferably, the structure of the composite insulating layer may be one of a circular arc-shaped protruding structure, a straight-line-shaped protruding structure, a fan-shaped protruding structure, or a cylindrical protrusion-type structure.
Preferably, the fastener elastic strip is designed with a damping insulation structure.
Compared with the prior art, the beneficial effects of the utility model are that: the system for preventing and treating the influence of the stray current corrosion of the urban rail transit adopts a three-layer stray current prevention design, the first layer is a composite insulating layer which carries out surface insulation treatment on the steel rail, and the problem of stray current leakage is essentially eliminated; in addition, the composite insulating layer has self-adhesive capacity, is simple and convenient to construct, can be directly utilized on the existing railway track, has strong practicability, and can be directly removed by using a dissolving solvent when needing to be removed, and is easy to replace.
The second layer carries out insulation and antifouling treatment on the rail lower base plate and the fastener elastic strip; wherein the rail lower bolster is in existing structural "eaves formula" blowdown design of increasing, has effectively promoted current fastener self resistance performance and anti-soil ability, and fastener bullet strip design has damping insulation system, the effectual minimum surface insulation distance that has increased current fastener and rail reduces stray current's leakage.
The third layer is a macromolecule composite coating sprayed on the upper surface of the fastener, and the coating has stronger insulating property and a pollution flashover resistance function.
Drawings
FIG. 1 is a schematic structural diagram of a system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
FIG. 2 is a schematic diagram of the top view structure of the system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
FIG. 3 is a schematic structural view of a "V-shaped" extended composite insulation layer of the system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
FIG. 4 is a schematic structural view of an arc-shaped extended composite insulating layer of the system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
FIG. 5 is a schematic structural view of a "linear" extending type composite insulating layer of the system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
FIG. 6 is a schematic structural view of a cylindrical protruding type extended composite insulation layer of a system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
FIG. 7 is a schematic structural view of a fan-shaped extended composite insulating layer of a system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
FIG. 8 is a schematic structural view of a multi-layer extended composite insulating layer of a system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
FIG. 9 is a schematic view of a structure of a lower pad of a fastener rail of a system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
FIG. 10 is a schematic top view of the bottom plate of the fastener rail of the system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
FIG. 11 is a schematic view of the side view of the lower pad of the fastener rail of the system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
FIG. 12 is a schematic view of a fastener elastic strip structure of a system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
FIG. 13 is a schematic side view of the fastener elastic strip of the system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
fig. 14 is a schematic diagram of a frequency response function of a rail-elastic strip toe end of the system for preventing and treating the influence of stray current corrosion in urban rail transit according to the present invention;
fig. 15 is the utility model relates to a system bullet strip vibration acceleration of prevention and cure urban rail transit stray current corrosion influence and normal operating mode's acceleration contrast sketch map.
In the figure: 1. the steel rail comprises a steel rail, 2, a fastener, 3, a fastener rail lower base plate, 4, a spiral spike, 5, a composite insulating layer, 6, a fastener elastic strip, 7 and a sewage drainage ditch.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a system for preventing and treating stray current corrosion influence of urban rail transit comprises a steel rail 1, a fastener 2, a fastener rail lower backing plate 3, a spiral rail nail 4, a composite insulating layer 5, fastener elastic strips 6 and a sewage drainage ditch 7, wherein the fastener 2 is pressed and covered on two sides of the steel rail 1, the fastener rail lower backing plate 3 is arranged at the bottom of the steel rail 1, the fastener 2 is fastened with the fastener rail lower backing plate 3 through the spiral rail nail 4, the fastener 2 is fastened with the steel rail 1 through the fastener elastic strips 6, the composite insulating layer 5 is covered on the rail waist and the rail bottom surface of the steel rail 1, the composite insulating layer 5 is formed by compounding materials which are strong in insulating property, good in high and low temperature resistance, strong in plasticity, strong in wear resistance, long in service life, good in fireproof performance and have certain strength, such as silica gel and the like, and the steel rail 1 is wrapped in bottom area through the composite insulating layer 5, the insulating property of the composite insulating layer 5 is utilized to isolate a loop formed between the steel rail 1 and soil, so that the problem of stray current leakage is essentially eliminated; in addition, the composite insulating layer 5 has self-bonding capability, is simple and convenient to construct, can be directly used on the existing railway track, has strong practicability, can be directly removed by using a dissolving solvent when the composite insulating layer needs to be removed, and is easy to replace.
Furthermore, the upper surface of the fastener 2 is sprayed with a high-molecular composite coating after the fastener 2 is assembled, and the coating has strong insulating property and a pollution flashover resistance function.
Further, a sewage drainage channel 7 is arranged on the lower backing plate 3 of the fastener rail and the composite insulating layer 5;
the sewage draining ditch 7 on the composite insulating layer 5 can prevent the surface of the composite insulating layer from being completely covered by oil stains, dust, scrap iron and other sundries, and the possibility of conducting current from the surface of the composite insulating layer is avoided.
Furthermore, two sides of the lower backing plate 3 of the fastener rail are provided with sewage discharge ditches 7, the sewage discharge ditches 7 are in a roof eaves type, and the sewage discharge ditches 7 are symmetrically arranged around the central axis of the lower backing plate 3 of the fastener rail;
the sewage discharge ditch 7 is 10-30 mm longer than the existing base plate, and can effectively prevent air breakdown between the steel rail and the fastener; can effectively prevent the pollution of objects such as water, oil stains and the like on the upper surface of the fastener node.
Further, the composite insulating layer 5 is wrapped along the longitudinal length of the steel rail 1 in a segmented or full-length mode.
Further, the structure of the composite insulating layer 5 may be one of an arc-shaped protruding structure, a "straight" protruding structure, a fan-shaped protruding structure, or a cylindrical protrusion structure, and may be one layer or multiple layers; the self-drainage structure can be as long as the composite insulating layer 5 per se, and can also be arranged discontinuously;
the composite insulating layer 5 is wrapped along the longitudinal length of the steel rail 1 in a segmented mode or wrapped in a full-length mode, and the steel rail 1 is wrapped in a segmented mode, so that the flowing area of current in a loop formed by the steel rail and soil can be reduced, and the influence effect of stray current is reduced.
Further, composite insulation layer 5's thickness is not more than 1mm, adopts ultra-thin structure, can reduce the influence to fastener 2 longitudinal resistance and to the influence of the bullet strip withholding force on fastener 2.
Further, the fastener elastic strip 6 is designed with a damping insulation structure.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a system for prevention and cure urban rail transit stray current corrodes influence, includes rail (1), fastener (2), fastener rail lower bolster (3), spiral spike (4), composite insulation layer (5), fastener bullet strip (6) and blowdown ditch (7), its characterized in that: the fastener (2) are pressed on two sides of the steel rail (1), a fastener rail lower base plate (3) is arranged at the bottom of the steel rail (1), the fastener (2) is fastened with the fastener rail lower base plate (3) through a spiral spike (4), the fastener (2) is fastened with the steel rail (1) through a fastener elastic strip (6), and the composite insulating layer (5) is coated on the rail waist and the rail bottom surface of the steel rail (1).
2. The system for preventing and treating urban rail transit stray current corrosion influence according to claim 1, wherein: the upper surface of the fastener (2) is sprayed with a high-molecular composite coating after the fastener (2) is assembled.
3. The system for preventing and treating urban rail transit stray current corrosion influence according to claim 1, wherein: and the fastener rail lower backing plate (3) and the composite insulating layer (5) are both provided with a sewage drainage channel (7).
4. The system for preventing and treating urban rail transit stray current corrosion influence according to claim 1, wherein: the fastener rail lower backing plate is characterized in that the two sides of the fastener rail lower backing plate (3) are respectively provided with a sewage drainage groove (7), the sewage drainage grooves (7) are in an eave type, and the sewage drainage grooves (7) are symmetrically arranged relative to the central axis of the fastener rail lower backing plate (3).
5. The system for preventing and treating urban rail transit stray current corrosion influence according to claim 1, wherein: the composite insulating layer (5) is wrapped along the longitudinal length of the steel rail (1) in a segmented or full-length mode.
6. The system for preventing and treating urban rail transit stray current corrosion influence according to claim 1, wherein: the structure of the composite insulating layer (5) can be one of a circular arc-shaped extending structure, a straight-line-shaped extending structure, a fan-shaped extending structure or a cylindrical protruding structure.
7. The system for preventing and treating urban rail transit stray current corrosion influence according to claim 1, wherein: the fastener elastic strip (6) is designed with a damping insulation structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996839.3U CN210394989U (en) | 2019-06-28 | 2019-06-28 | System for preventing and treating influence of stray current corrosion of urban rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996839.3U CN210394989U (en) | 2019-06-28 | 2019-06-28 | System for preventing and treating influence of stray current corrosion of urban rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210394989U true CN210394989U (en) | 2020-04-24 |
Family
ID=70351527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920996839.3U Active CN210394989U (en) | 2019-06-28 | 2019-06-28 | System for preventing and treating influence of stray current corrosion of urban rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210394989U (en) |
-
2019
- 2019-06-28 CN CN201920996839.3U patent/CN210394989U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111560801A (en) | Track traffic assembly for preventing and treating stray current corrosion influence and construction method thereof | |
| CN207974000U (en) | A kind of railroad bridge elastomer expansion gap device | |
| CN205741898U (en) | Replaceable rubber seal tape bridge retractor device | |
| CN110273332A (en) | A kind of system preventing and treating Stray Current in Urban Rail Transit corrosion impact | |
| CN210394989U (en) | System for preventing and treating influence of stray current corrosion of urban rail transit | |
| CN207862762U (en) | Steel box-girder drainage-free tube built-in drainage system | |
| CN105274915A (en) | Method for eliminating track system stray current | |
| CN217438574U (en) | Steel rail insulation isolation system | |
| CN211447035U (en) | Piping lane lateral wall movement joint waterproof construction | |
| CN213114123U (en) | Steel rail insulating sleeve for preventing and treating stray current corrosion influence | |
| CN208472466U (en) | Urban track traffic rail insulation construction | |
| CN114293407A (en) | Stray current prevention system under fastener plate | |
| CN206941315U (en) | A kind of elastic insulated pad and Damping fastening system | |
| CN115928511A (en) | High-grade vibration reduction track structure suitable for station city integrated comprehensive development | |
| CN212688578U (en) | Fastener reverse-buckling type insulation protection device | |
| CN212000400U (en) | Protective device for tramcar rail | |
| CN212219974U (en) | Direct-current traction power supply stray current corrosion protection system for ballast track traffic | |
| CN220421430U (en) | Reinforcing steel bar polarization potential protection system based on path separation | |
| CN109334516A (en) | A kind of traction power supply contact net of independent loop | |
| CN214572994U (en) | Stray current system is prevented to rail based on compound insulation technique | |
| CN215481276U (en) | Outer anti-corrosion structure of underground pipe reconstructed from sewage dike | |
| Memon et al. | Use of rail boot and collection mat to control the electrolysis of rail and utilities in DC powered transit agencies | |
| CN213953671U (en) | Novel subway evacuation platform | |
| CN215442040U (en) | Plain concrete slab structure for pipeline long-span cross-groove protection | |
| CN216919991U (en) | Waterproof type telescoping device of railway bridge roof beam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Yuanfei Inventor after: Wang Yujiao Inventor after: Qi Xilei Inventor before: Wang Yujiao Inventor before: Qi Xilei |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220624 Address after: 412000 rooms 102, 202, 302, building a11, high tech xinmajingu, Majiahe street, Tianyuan District, Zhuzhou City, Hunan Province Patentee after: Hunan jiuyu Tongchuang polymer new material Co.,Ltd. Address before: 721000 No. 26, Jufu East Road, Weibin District, Baoji City, Shaanxi Province Patentee before: Shaanxi Jiuyu Tongchuang Track System Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |