CN105480119A - Independent return current rail technique of DC traction electricity supply system for railway traffic - Google Patents
Independent return current rail technique of DC traction electricity supply system for railway traffic Download PDFInfo
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- CN105480119A CN105480119A CN201510716445.4A CN201510716445A CN105480119A CN 105480119 A CN105480119 A CN 105480119A CN 201510716445 A CN201510716445 A CN 201510716445A CN 105480119 A CN105480119 A CN 105480119A
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- rail
- contact rail
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Abstract
The invention relates to a special return current rail technique of a DC traction electricity supply system for railway traffic, and is mainly used for the field of DC traction electricity supply of urban railway traffic, tramcars, trackless trolleys and mining ventures. A special return current rail which is independent of a vehicle running rail is arranged, is used as one pole of positive and negative poles of the DC traction electricity supply system, and is generally used as a negative-pole return current rail. The special return current rail and the ground are in reliable insulation, and the stray current corrosion of the DC traction electricity supply system is avoided. The special return current rail of the DC traction electricity supply system for the railway traffic is mounted under a vehicle between vehicle running rails, is fixed on a ballast bed in an insulation manner, and mainly comprises a contact rail and a contact rail supporting base. The contact rail is in contact with a negative-pole electric brush of the vehicle in a sliding contact manner so as to conduct electric currents, and the contact rail supporting base is used for fixing the contact rail on the ballast bed in an insulation manner.
Description
(1) technical field
Orbit traffic direct current tractive power supply system Special back trajectory technology of the present invention is mainly used in the direct-current traction power supply field of urban track traffic, tramway train, trackless trolley car and bargh, Special back trajectory independent of travelled by vehicle rail is set, as a pole of DC traction power-supply system both positive and negative polarity, generally as negative pole return current rail.Special back trajectory reliably insulate with the earth, avoids the stray current corrosion of DC traction power-supply system.
(2) background technology
In the DC traction power-supply system of current city track traffic, tramway train, trackless trolley car and bargh, general positive pole overhead contact line being set at roof or powering as vehicle DC at rail arranged outside the 3rd rail, the negative pole utilizing travelled by vehicle rail to double as vehicle DC to power.The various mechanical forces that travelled by vehicle rail needs vehicle to produce, be difficult to realize failure-free ground insulation, when doubling as the negative pole that vehicle DC powers, direct current back flow current is easily leaked into the earth from insulation weakness becomes stray current, metal pipe line near stray current is along the line to rail, railway roadbed reinforcing bar, civil engineering structure reinforcing bar and track traffic produces electrocorrosion, affects safety and the service life of railway traffic engineering.
Orbit traffic direct current tractive power supply system Special back trajectory of the present invention, be installed in the under-vehicle between travelled by vehicle rail, be fixed on railway roadbed with insulation mode, be electrically connected by the negative pole brush (also claim shoegear, award trolley or collector shoe) of vehicle and the negative pole of vehicle DC traction system, be electrically connected at the negative pole of traction substation place and rectifying device.After installing return current rail, the negative pole of vehicle DC traction system and wheel and rail electric insulating, DC traction back flow current flows back to the negative pole of the rectifying device of ground traction substation through return current rail, can not enter the earth through wheel and rail becomes stray current.
(3) summary of the invention
Orbit traffic direct current tractive power supply system Special back trajectory of the present invention, mainly comprise contact rail and contact rail base for supporting, contact rail contacts thus On current with the negative pole brush of vehicle with sliding contacting mode, and contact rail base for supporting is for being fixed on railway roadbed by contact rail with insulation mode.Contact rail can adopt traditional track traffic rail, also can adopt composite conductor rail of steel and aluminum, aluminium contact rail, copper material contact rail etc.Contact rail base for supporting comprises insulator, base upper contact rail fixes gold utensil and base fixing device, insulator can adopt porcelain insulator or composite insulator, base upper contact rail fixes gold utensil for being fixed on the insulator by contact rail, and base fixing device is for being fixed on railway roadbed by contact rail base for supporting.
(4) accompanying drawing explanation
Accompanying drawing is the cross-sectional view strength that orbit traffic direct current tractive power supply system Special back trajectory is installed in orbit.In figure: 1 is contact rail, 2 is insulator, and 3 fix gold utensil for base upper contact rail, and 4 is base fixing device, and 5 and 6 are travelled by vehicle rail, and 7 is rail traffic road bed, and 1,2,3 and 4 are combined as orbit traffic direct current tractive power supply system Special back trajectory.
(5) detailed description of the invention
Orbit traffic direct current tractive power supply system Special back trajectory of the present invention, be installed in the under-vehicle between travelled by vehicle rail, be fixed on railway roadbed, with the earth electric insulating, be electrically connected by the negative pole brush (also claim shoegear, award trolley or collector shoe) of vehicle and the negative pole of vehicle DC traction system, be electrically connected at the negative pole of traction substation place and rectifying device.Return current rail mainly comprises contact rail and contact rail base for supporting.Contact rail can adopt traditional track traffic rail, also composite conductor rail of steel and aluminum, aluminium contact rail, copper material contact rail etc. can be adopted, contact rail base for supporting comprises insulator, base upper contact rail fixes gold utensil and base fixing device, insulator can adopt porcelain insulator or composite insulator, base upper contact rail fixes gold utensil for being fixed on the insulator by contact rail, and base fixing device is for being fixed on railway roadbed by contact rail base for supporting.
Claims (4)
1. orbit traffic direct current tractive power supply system arranges the Special back trajectory independent of travelled by vehicle rail, as a pole of DC traction power-supply system both positive and negative polarity, generally as negative pole return current rail.
2. orbit traffic direct current tractive power supply system Special back trajectory is installed in the under-vehicle between travelled by vehicle rail, be fixed on railway roadbed with insulation mode, be electrically connected by the negative pole brush (also claim shoegear, award trolley or collector shoe) of vehicle and the negative pole of vehicle DC traction system, be electrically connected at the negative pole of traction substation place and rectifying device.
3. orbit traffic direct current tractive power supply system Special back trajectory, mainly comprise contact rail and contact rail base for supporting, contact rail contacts thus On current with the negative pole brush of vehicle with sliding contacting mode, and contact rail base for supporting is for being fixed on railway roadbed by contact rail with insulation mode.Contact rail can adopt traditional track traffic rail, also can adopt composite conductor rail of steel and aluminum, aluminium contact rail, copper material contact rail etc.Contact rail base for supporting comprises insulator, base upper contact rail fixes gold utensil and base fixing device, insulator can adopt porcelain insulator or composite insulator, base upper contact rail fixes gold utensil for being fixed on the insulator by contact rail, and base fixing device is for being fixed on railway roadbed by contact rail base for supporting.
4. in the design of engineering, the supply of material, construction or operation link application orbit traffic direct current tractive power supply system Special back trajectory technology, in order to prevent or to reduce the electrocorrosion of stray current generation under orbit traffic direct current traction power supply mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510716445.4A CN105480119A (en) | 2015-10-30 | 2015-10-30 | Independent return current rail technique of DC traction electricity supply system for railway traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510716445.4A CN105480119A (en) | 2015-10-30 | 2015-10-30 | Independent return current rail technique of DC traction electricity supply system for railway traffic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105480119A true CN105480119A (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510716445.4A Pending CN105480119A (en) | 2015-10-30 | 2015-10-30 | Independent return current rail technique of DC traction electricity supply system for railway traffic |
Country Status (1)
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| CN (1) | CN105480119A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105835725A (en) * | 2016-04-29 | 2016-08-10 | 王彦利 | Insulator special for independent return current rail |
| CN106608189A (en) * | 2016-10-23 | 2017-05-03 | 李宁 | Tramcar land-based power supply structure |
| CN107565636A (en) * | 2017-09-13 | 2018-01-09 | 史韶博 | One kind moves freely contact and obscures electrifying system |
| CN107962982A (en) * | 2017-12-05 | 2018-04-27 | 西南交通大学 | A kind of three-phase traction electric power system |
| CN109130956A (en) * | 2017-07-06 | 2019-01-04 | 天津中铁电气化设计研究院有限公司 | A kind of positive and negative electrode systems in field section and earthed system that special rail flows back under power supply system |
| CN111016668A (en) * | 2019-12-13 | 2020-04-17 | 西南交通大学 | Double-ring type current-receiving-grounding compatible system suitable for high-speed railway |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201089375Y (en) * | 2007-06-04 | 2008-07-23 | 李琴 | Novel steel-aluminium composite conductor rail |
| CN201841973U (en) * | 2010-10-22 | 2011-05-25 | 广州地铁设计研究院有限公司 | Assembling and mounting structure of DC 1500 V overhead contact line and return current rail |
| JP2015160576A (en) * | 2014-02-28 | 2015-09-07 | 三菱重工業株式会社 | Electric car line support apparatus and guide track traffic system |
-
2015
- 2015-10-30 CN CN201510716445.4A patent/CN105480119A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201089375Y (en) * | 2007-06-04 | 2008-07-23 | 李琴 | Novel steel-aluminium composite conductor rail |
| CN201841973U (en) * | 2010-10-22 | 2011-05-25 | 广州地铁设计研究院有限公司 | Assembling and mounting structure of DC 1500 V overhead contact line and return current rail |
| JP2015160576A (en) * | 2014-02-28 | 2015-09-07 | 三菱重工業株式会社 | Electric car line support apparatus and guide track traffic system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105835725A (en) * | 2016-04-29 | 2016-08-10 | 王彦利 | Insulator special for independent return current rail |
| CN106608189A (en) * | 2016-10-23 | 2017-05-03 | 李宁 | Tramcar land-based power supply structure |
| CN109130956A (en) * | 2017-07-06 | 2019-01-04 | 天津中铁电气化设计研究院有限公司 | A kind of positive and negative electrode systems in field section and earthed system that special rail flows back under power supply system |
| CN107565636A (en) * | 2017-09-13 | 2018-01-09 | 史韶博 | One kind moves freely contact and obscures electrifying system |
| CN107962982A (en) * | 2017-12-05 | 2018-04-27 | 西南交通大学 | A kind of three-phase traction electric power system |
| CN107962982B (en) * | 2017-12-05 | 2023-10-13 | 西南交通大学 | Three-phase traction power supply system and vehicle-mounted power supply system |
| CN111016668A (en) * | 2019-12-13 | 2020-04-17 | 西南交通大学 | Double-ring type current-receiving-grounding compatible system suitable for high-speed railway |
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Application publication date: 20160413 |