CN105274915B - A kind of method for eliminating rail system stray electrical current - Google Patents
A kind of method for eliminating rail system stray electrical current Download PDFInfo
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- CN105274915B CN105274915B CN201510833297.4A CN201510833297A CN105274915B CN 105274915 B CN105274915 B CN 105274915B CN 201510833297 A CN201510833297 A CN 201510833297A CN 105274915 B CN105274915 B CN 105274915B
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Abstract
The invention belongs to urban rail transit technology field, a kind of method of elimination rail system stray electrical current of proposition.A kind of method of the elimination rail system stray electrical current proposed, insulating coating is coated on the surface of the rail of track（5）；Rail from top to bottom includes rail top（4）, rail head（3）, the web of the rail（2）And the flange of rail（1）；Insulating coating（5）Continuously coated along steel rail laying direction, in Rail Surface one layer of densification of formation and continuous insulating protective layer；Insulating coating（5）It is coated on the both sides of rail head and the web of the rail and the flange of rail, or, insulating coating（5）It is coated in the web of the rail（2）Both sides and the flange of rail（1）On；Insulating coating（5）Highest end face and rail top（4）Between have spacing.The present invention fundamentally avoids the generation of stray electrical current, it is to avoid the harm that the unfavorable factor of electrochemical corrosion is caused to communal facility pipeline and building around track and track etc..
Description
Technical field
The invention belongs to urban rail transit technology field, and in particular to a kind of side of elimination rail system stray electrical current
Method.
Background technology
In order to alleviate increasingly serious traffic problems, urban rail traffic project is all being greatly developed in many big and medium-sized cities,
Such as subway, light rail, tramcar, Novel rail transit system.They are more using direct-current propulsion system and traveling
Rail is used as return wire.The electric current overwhelming majority can flow back into power cathode by rail, but also sub-fraction is from track
In the soil that railway roadbed and surrounding are leaked to the position of ground defective insulation, stray electrical current is formed.The presence meeting pair of stray electrical current
The communal facility pipeline and building of rail in itself and around track etc. occur electrochemical corrosion, reduce track, buried pipeline and
The service life of building etc.；Especially for tramcar track for subway, light rail, track is fully embedded ground
Under, the harm of its stray electrical current can not be ignored.
Existing solution substantially has two kinds, and one kind is to carry out electrochemical protection to protected object, such as takes drainage
Method, cathodic protection, anodic protection etc., to extend the working life of protected object, the method can be to not taking drainage measure
Metal structure is interfered.Another way is that insulation protecting block and sheath are set on the outside of track, and increase rail is constructed with periphery
Insulaion resistance between thing；Though second method can effectively increase the insulaion resistance of track, insulation protecting block and sheath with
The gap that can be formed during installation and use between fastener, insulation protecting block and sheath, in actual service conditions and moist
The problem of can not still stray electrical current being solved under environment.Both the above method fails fundamentally to solve stray electrical current generation
Problem.
The content of the invention
The problem of fundamentally to solve rail system stray electrical current, track system is eliminated the purpose of the present invention is to propose to one kind
The method of system stray electrical current.
The present invention adopts the following technical scheme that to complete above-mentioned purpose：
A kind of method for eliminating rail system stray electrical current, insulating coating is coated on the surface of rails；Described steel
Rail from top to bottom includes rail top, rail head, the web of the rail and the flange of rail；Described insulating coating is continuously coated along steel rail laying direction,
Rail Surface one layer of densification of formation and continuous insulating protective layer；Described insulating coating is coated in both sides and the web of the rail of rail head
On the flange of rail；Or, described insulating coating is coated on the both sides and the flange of rail of the web of the rail；The highest end face of insulating coating and rail top it
Between have spacing；The insulating coating is the high resistivity material that resistivity is not less than 20 megohms.
The thickness of the insulating coating is 50~500 μm.
Spacing between the highest end face of insulating coating and rail top is more than 5mm.
Be coated with high abrasion coating on the web of the rail described in rail or the flange of rail, and described high abrasion coating be coated in it is described exhausted
On edge coating, to reduce the abrasion that the friction between part comes to coated tape.
Described high abrasion coating is coated along steel rail laying direction interval, and the described high abrasion coating correspondence web of the rail or rail
Bottom is set with other part binding sites.
Described high abrasion coating is continuously coated along steel rail laying direction.
Described insulating coating includes adhesives, inorganic reinforcement and surfactant.
Described adhesives is the one or more in acetal, polyester, modified poly ester, polyurethane, polyimides.
Described inorganic reinforcement is one kind in aluminum oxide, carborundum, silicon nitride, silica, magnesia, mica
Or it is a variety of.
Described surfactant is in dodecyl sodium sulfate, cetyl trimethylammonium bromide, polyethylene glycol, tween
One or more.
The painting method of the insulating coating includes blade coating, roller coat, dip-coating and spraying.
Described insulating coating before coating, it is necessary to coating surface is polished or sandblasting or oil removing or rust cleaning at
Reason.
A kind of method for eliminating rail system stray electrical current proposed by the present invention, resistance is coated on the surface of the rail of track
High resistivity material of the rate not less than 20 megohms is as insulating coating, and described insulating coating, which removes to possess, eliminates scattered current
Outside insulation function, can also possess the function such as anticorrosion, water-fast, ageing-resistant, rub resistance, humidity resistance, resistance to weathering；From root
The generation of rail system stray electrical current is avoided in sheet, it is to avoid the unfavorable factor such as electrochemical corrosion to track and track around
The harm that communal facility pipeline and building etc. are caused, and this method implementing process is simple, efficiency high, insulation effect is guaranteed,
Traditional insulation protecting block and sheath parts and complicated in-site installation are avoided, track insulation material cost and peace is greatly reduced
Dress expense, is conducive to the implementation of large-scale mass.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2
In figure：1st, the flange of rail, 2, the web of the rail, 3, rail head, 4, rail top, 5, insulating coating, 6, high abrasion coating, 7, track gauge block, 8,
Wheel.
Embodiment
The present invention is illustrated with reference to the drawings and specific embodiments：
As shown in figure 1, a kind of method for eliminating rail system stray electrical current, is applied in the surface coating insulation of the rail of track
Layer 5；Described rail from top to bottom includes rail top 4, rail head 3, the web of the rail 2 and the flange of rail 1；Described insulating coating 5 is spread along rail
Set direction is continuously coated；In the embodiment, described insulating coating 5 is coated on the both sides of rail head 3 and the web of the rail 2 and the flange of rail 1,
And the spacing H between the highest end face of insulating coating 5 and rail top1For 10mm；In the embodiment, contacted in track gauge block 7 with the flange of rail 1
The insulating coating surface of areas adjacent is coated with high abrasion coating 6；The insulating coating 5 is that resistivity is not less than 20 megohms
High resistivity material；Described insulating coating includes adhesives, inorganic reinforcement and surfactant；Described is viscous
It is one kind in acetal, polyester, modified poly ester, polyurethane, polyimides to connect material；Described inorganic reinforcement is oxidation
One or more in aluminium, carborundum, silicon nitride, silica, magnesia, mica；Described surfactant is dodecane
One or more in base sodium sulfonate, cetyl trimethylammonium bromide, polyethylene glycol, tween；In the embodiment, described is exhausted
Edge coating 5 is the material for being mixed with polyurethane resin, aluminum oxide, silica, mica, dodecyl sodium sulfate, passes through spraying（Or
Person's blade coating, roller coat, dip-coating）Mode, be uniformly coated in the rail flange of rail 1, the web of the rail 2, the side of rail head 3 of cleaning, treat surface
Dry after 2h, coat the 2nd time, so repeatedly, continuous to coat 3 times, coating layer thickness is 400um；Coating is in rail specific region shape
Into one layer of densification and continuous insulating protective layer, realize and fundamentally solve the problem of stray electrical current is produced.
Fig. 2 is the structural representation of the embodiment of the present invention 2, the agent structure be the same as Example 1 of the embodiment, the embodiment
In, described insulating coating is coated on the both sides and the flange of rail of the web of the rail, the spacing on the most significant end identity distance rail top 4 of web of the rail coating zone
For H2For 8mm, H3For 10mm.
Claims (7)
1. a kind of method for eliminating rail system stray electrical current, insulating coating is coated on the surface of the rail of track（5）；Described
Rail from top to bottom includes rail top（4）, rail head（3）, the web of the rail（2）And the flange of rail（1）；It is characterized in that：Described insulating coating
（5）Continuously coated along steel rail laying direction, in Rail Surface one layer of densification of formation and continuous insulating protective layer；Described insulation
Coating（5）It is coated on the both sides of rail head and the web of the rail and the flange of rail, or, described insulating coating（5）It is coated in the web of the rail（2）Two
Side and the flange of rail（1）On；Insulating coating（5）Highest end face and rail top（4）Between have spacing；The insulating coating is resistivity
High resistivity material not less than 20 megohms；The thickness of the insulating coating is between 50-500um；The highest of insulating coating
Spacing between end face and rail top is more than 5mm；High abrasion coating is coated with the web of the rail described in rail or the flange of rail（6）, and it is described
High abrasion coating（6）It is coated in described insulating coating（5）On.
2. a kind of method for eliminating rail system stray electrical current as claimed in claim 1, it is characterised in that：Described high abrasion
Coating（6）Coated along steel rail laying direction interval, and described high abrasion coating（6）The correspondence web of the rail or the flange of rail and other part knots
Position is closed to set.
3. a kind of method for eliminating rail system stray electrical current as claimed in claim 1, it is characterised in that：Described high abrasion
Coating（6）Continuously coated along steel rail laying direction.
4. a kind of method for eliminating rail system stray electrical current as claimed in claim 1, it is characterised in that：Described insulation is applied
Layer includes adhesives, inorganic reinforcement and surfactant.
5. a kind of method for eliminating rail system stray electrical current as claimed in claim 4, it is characterised in that：Described bonding material
Expect for the one or more in acetal, polyester, modified poly ester, polyurethane, polyimides.
6. a kind of method for eliminating rail system stray electrical current as claimed in claim 4, it is characterised in that：Described inorganic increasing
Strong material is the one or more in aluminum oxide, carborundum, silicon nitride, silica, magnesia, mica.
7. a kind of method for eliminating rail system stray electrical current as claimed in claim 4, it is characterised in that：Live on described surface
Property agent be dodecyl sodium sulfate, cetyl trimethylammonium bromide, polyethylene glycol, tween in one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510833297.4A CN105274915B (en) | 2015-11-26 | 2015-11-26 | A kind of method for eliminating rail system stray electrical current |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510833297.4A CN105274915B (en) | 2015-11-26 | 2015-11-26 | A kind of method for eliminating rail system stray electrical current |
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| Publication Number | Publication Date |
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| CN105274915A CN105274915A (en) | 2016-01-27 |
| CN105274915B true CN105274915B (en) | 2017-07-18 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939534A (en) * | 2017-01-23 | 2017-07-11 | 上海工程技术大学 | A kind of nano ceramic coat insulation rail |
| CN108797232A (en) * | 2018-06-05 | 2018-11-13 | 中铁二院工程集团有限责任公司 | Urban track traffic rail insulation constructs |
| CN109158281A (en) * | 2018-09-21 | 2019-01-08 | 武汉钢铁有限公司 | The construction system and method for the anti-stray electrical current coating of rail |
| CN111560801A (en) * | 2020-05-21 | 2020-08-21 | 陕西九域通创轨道系统技术有限责任公司 | Track traffic assembly for preventing and treating stray current corrosion influence and construction method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05214701A (en) * | 1992-02-05 | 1993-08-24 | Dai Ichi High Frequency Co Ltd | Coated rail |
| CN2541504Y (en) * | 2002-04-22 | 2003-03-26 | 攀枝花钢铁有限责任公司钢铁研究院 | Corrosion resistance railway rail |
| WO2004033795A1 (en) * | 2002-10-08 | 2004-04-22 | Hyperlast Limited | Cladding of rails |
| FR2939336A1 (en) * | 2008-12-04 | 2010-06-11 | Multispe France | Chemical products assembling and applying method for e.g. rail insulation/protective coating, involves utilizing chemical products, and co-operating chemical products together to form new base products |
| JP2012072565A (en) * | 2010-09-28 | 2012-04-12 | West Japan Railway Co | Railroad rail, rust-proofing processing method therefor, and fastening member |
| CN103498392A (en) * | 2013-09-11 | 2014-01-08 | 毛建红 | Damping steel rail |
| CN104725978A (en) * | 2015-03-02 | 2015-06-24 | 西安誉丰通号科技有限公司 | Heavy anticorrosive insulated conversion film and leakage improvement method of track circuit ballast bed |
-
2015
- 2015-11-26 CN CN201510833297.4A patent/CN105274915B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05214701A (en) * | 1992-02-05 | 1993-08-24 | Dai Ichi High Frequency Co Ltd | Coated rail |
| CN2541504Y (en) * | 2002-04-22 | 2003-03-26 | 攀枝花钢铁有限责任公司钢铁研究院 | Corrosion resistance railway rail |
| WO2004033795A1 (en) * | 2002-10-08 | 2004-04-22 | Hyperlast Limited | Cladding of rails |
| FR2939336A1 (en) * | 2008-12-04 | 2010-06-11 | Multispe France | Chemical products assembling and applying method for e.g. rail insulation/protective coating, involves utilizing chemical products, and co-operating chemical products together to form new base products |
| JP2012072565A (en) * | 2010-09-28 | 2012-04-12 | West Japan Railway Co | Railroad rail, rust-proofing processing method therefor, and fastening member |
| CN103498392A (en) * | 2013-09-11 | 2014-01-08 | 毛建红 | Damping steel rail |
| CN104725978A (en) * | 2015-03-02 | 2015-06-24 | 西安誉丰通号科技有限公司 | Heavy anticorrosive insulated conversion film and leakage improvement method of track circuit ballast bed |
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| Publication number | Publication date |
|---|---|
| CN105274915A (en) | 2016-01-27 |
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