CN108162803A - Combined type orientation conducting reflux - Google Patents
Combined type orientation conducting reflux Download PDFInfo
- Publication number
- CN108162803A CN108162803A CN201810052237.2A CN201810052237A CN108162803A CN 108162803 A CN108162803 A CN 108162803A CN 201810052237 A CN201810052237 A CN 201810052237A CN 108162803 A CN108162803 A CN 108162803A
- Authority
- CN
- China
- Prior art keywords
- inlet wire
- rail
- diode
- automatic arc
- parking lot
- Prior art date
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- 238000010992 reflux Methods 0.000 title claims abstract description 30
- 238000009413 insulation Methods 0.000 claims abstract description 35
- 239000004020 conductor Substances 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 230000011218 segmentation Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/02—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M5/00—Arrangements along running rails or at joints thereof for current conduction or insulation, e.g. safety devices for reducing earth currents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
Combined type orientation conducting reflux, both it can guarantee that rail reflux was unimpeded, also it can guarantee that parking lot is fully disconnected with main track rail on electric loop, to realize the optimization for reducing stray current corrosion, and a series of problems, such as solving in parking lot to continuing seriously to discharge during rail hanging earthing conductor, influencing hanging earthing conductor operation and parking lot interior rail potential limiting device frequent movement, operation security, reliable is ensured to the maximum extent, and convenient for construction and installation and operation management and maintenance.Right side main track rail is tied including connecting the 1st insulation respectively, the 1st inlet wire, the 3rd inlet wire that rail outside the parking lot library of left side is tied in the 2nd insulation, the outlet of the 2nd inlet wire and connection traction substation cathode of rail between two insulation knots of connection；1st inlet wire is connected by the 1st automatic arc-suppressing device, the 2nd automatic arc-suppressing device respectively with the 2nd inlet wire, the 2nd inlet wire with the 3rd inlet wire；1st automatic arc-suppressing device the 1st diode of parallel connection, the 2nd diode are connected between the 1st diode and outlet；Direct-current isolating switch is connected across the both ends of the 1st diode, the 2nd diode.
Description
Technical field
The present invention relates to a kind of combined type orientation conducting refluxes that city track traffic engineering uses.
Background technology
At present, using direct current supply standard, contact net (refers to majority cities railway traffic engineering tractive power supply system
Overhead contact line or conductor rail, similarly hereinafter) power supply, the pattern of rail reflux.Contact net parking lot (refer to rolling stock section or parking lot, under
Electricity segmentation is set together) between main track.
To prevent stray current corrosion, (come in and go out on field wire) generally between parking lot and main track rail, setting insulation knot,
And device in one-way on state is installed, the electric current in rail is made to be only capable of circulating to a direction.The specific setting of device in one-way on state
Position is corresponding with contact net electricity segmentation position.Device in one-way on state mainly disappears by diode branch, direct-current isolating switch and automatically
Arc device is formed, and device in one-way on state arrangement is as shown in Figure 5 on field wire as shown in figure 4, parking lot comes in and goes out for the mode of connection.
During normal operation, direct-current isolating switch is normally opened, ensures that rail bears the unimpeded of reflux circuit by diode branch, when
When diode branch breaks down and overhauls, closing direct-current isolating switch is connected the rail of insulation knot both sides, ensures traveling
Rail bears the unimpeded of reflux circuit；Automatic arc-suppressing device for direct-current isolating switch it is normally opened when, limitation rail insulation knot both sides
Rail potential difference increase, to avoid train by when generate arcing.
Since the insulation of parking lot rail over the ground is poor, transition resistance is smaller, the diode branch of device in one-way on state will
Parking lot is connected with main track rail one direction, once the transition resistance of main track somewhere rail over the ground reduces, main track will be caused to walk
Traction current electric current on row rail successively passes through device in one-way on state on the earth, parking lot rail, discrepancy field wire, main track traveling
Rail flows back to the cathode of main track traction substation, forms a large amount of stray electrical current.
Caused by adverse consequences it is as follows：
1) a large amount of stray electrical currents formed cause the heavy corrosion of metal pipe line and building structure reinforcing bar near parking lot；
2) when causing in parking lot to rail hanging earthing conductor, grounding rod continues serious electric discharge phenomena to grounding body generation, influences
Normal hanging earthing conductor operation；
Even if 3) cause not having in parking lot train operation, the rail potential in parking lot is also long-term higher, causes in parking lot
Side rail wear frequent movement.
In short, traditional device in one-way on state brought to city track traffic engineering long-term safety, reliable operation it is very big
Security risk has not adapted to higher and higher safe and reliable Operational requirements.
For traditional device in one-way on state pattern, from operation security it is reliable, convenient for construction and installation and operation management and dimension
The angle of shield proposes a kind of combined type orientation conducting reflux, to realize the optimization for reducing stray current corrosion, and solves vehicle
To continuing seriously to discharge during rail hanging earthing conductor in, hanging earthing conductor operation and parking lot interior rail potential limiting device are influenced
A series of problems, such as frequent movement.
Invention content
The technical problems to be solved by the invention are to provide a kind of combined type orientation conducting reflux, both can guarantee traveling
Rail reflux is unimpeded, also can guarantee that parking lot is fully disconnected with main track rail on electric loop, by conventional unidirectional before changing
Conducting device is by the pattern of parking lot and main track rail circuit one-way conduction, to realize the optimization for reducing stray current corrosion, and
It solves to influence hanging earthing conductor operation and parking lot interior rail current potential limit to continuing seriously to discharge during rail hanging earthing conductor in parking lot
A series of problems, such as device frequent movement processed, ensures operation security, reliable, and convenient for construction and installation and operation pipe to the maximum extent
Reason and maintenance.
Technical solution is as follows used by the present invention solves above-mentioned technical problem：
The combined type orientation conducting reflux of the present invention, it is characterized in that：Including connecting the 1st insulation knot right side main track respectively
The 1st inlet wire, the 3rd inlet wire of rail, connect rail between two insulation knots outside rail, the 2nd insulation knot left side parking lot library
The 2nd inlet wire and connect traction substation cathode outlet；1st inlet wire and the 2nd inlet wire, the 2nd inlet wire and the 3rd inlet wire
It is connected respectively by the 1st automatic arc-suppressing device, the 2nd automatic arc-suppressing device；1st automatic arc-suppressing device the 1st diode of parallel connection, the
2 diodes are connected between the 1st diode and outlet；Direct-current isolating switch is connected across the both ends of the 1st diode, the 2nd diode.
The combined type orientation conducting reflux of the present invention, it is characterized in that：Including connecting the 1st insulation knot right side main track respectively
The 1st inlet wire, the 3rd inlet wire of rail, connect rail between two insulation knots outside rail, the 2nd insulation knot left side parking lot library
The 2nd inlet wire and connect traction substation cathode outlet；1st inlet wire and the 2nd inlet wire, the 2nd inlet wire and the 3rd inlet wire
It is connected respectively by the 1st automatic arc-suppressing device, the 2nd automatic arc-suppressing device；1st diode, direct-current isolating switch with the 1st from
Dynamic arc-extinction device is in parallel, and between the 1st inlet wire, outlet.
The invention has the advantages that stray electrical current can be reduced, and solve in parking lot to continuing during rail hanging earthing conductor
A series of problems, such as seriously discharging, influencing hanging earthing conductor operation and parking lot interior rail potential limiting device frequent movement, it is maximum
Ensure to limit operation security, reliable, and convenient for construction and installation and operation management and maintenance, can be widely applied to current each direct current
In the city track traffic engineering of network planning.
Description of the drawings
This specification includes following five width attached drawing：
Fig. 1 is the configuration mode schematic diagram of combined type orientation conducting reflux of the present invention；
Fig. 2 is the structure diagram of combined type orientation conducting reflux embodiment 1 of the present invention；
Fig. 3 is the structure diagram of combined type orientation conducting reflux embodiment 2 of the present invention；
Fig. 4 is the mode of connection schematic diagram of existing device in one-way on state；
Fig. 5 is device in one-way on state arrangement schematic diagram on parking lot discrepancy field wire.
Component and corresponding label are shown in figure：1st diode 11, the 2nd diode 12, direct-current isolating switch the 21, the 1st
Automatic arc-suppressing device 31, the 2nd automatic arc-suppressing device 32, cabinet 41；Outlet L0, the 1st inlet wire L1, the 2nd inlet wire L2, the 3rd inlet wire L3,
Rail A2, main track rail A1 between 1st, which insulate, ties B1, B2 is tied in the 2nd insulation, rail A3, two insulation are tied outside the library of parking lot.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Reference Fig. 1 sets two insulation knots in the field wire section rail that comes in and goes out, and two the distance between knots that insulate are general not
More than 25 meters, the electricity segmentation set between contact net parking lot and main track is located between two insulation knots.
With reference to by Fig. 1 and Fig. 2 shows embodiment 1, combined type of the invention orientation conducting reflux include connect respectively
Meet main track rail A1 on the right side of the 1st insulation knot B1, the 1st inlet wire L1 of rail A3, the 3rd outside the library of parking lot on the left of the 2nd insulation knot B2
Inlet wire L3 connects the 2nd inlet wire L2 of the rail A2 and outlet L0 of connection traction substation cathode between two insulation knots.
The 1st inlet wire L1 and the 2nd inlet wire L2, the 2nd inlet wire L2 and the 3rd inlet wire L3 respectively by the 1st automatic arc-suppressing device the 31, the 2nd from
Dynamic arc-extinction device 32 is connected.The 1st diode 11 in parallel of 1st automatic arc-suppressing device 31, the 2nd diode 12 are connected to the 1st diode
Between 11 and outlet L0；Direct-current isolating switch 21 is connected across the both ends of the 1st diode 11, the 2nd diode 12.1st two pole
The 11, the 2nd diode 12 of pipe, direct-current isolating switch 21, the 1st automatic arc-suppressing device 31 and the 2nd automatic arc-suppressing device 32 are installed on cabinet
In body 41, wherein direct-current isolating switch 21 is electronic or manual.
With reference to by the embodiment 2 shown in Fig. 1 and Fig. 3, combined type of the invention orientation conducting reflux includes connecting respectively
Meet main track rail A1 on the right side of the 1st insulation knot B1, the 1st inlet wire L1 of rail A3, the 3rd outside the library of parking lot on the left of the 2nd insulation knot B2
Inlet wire L3 connects the 2nd inlet wire L2 of the rail A2 and outlet L0 of connection traction substation cathode between two insulation knots.
The 1st inlet wire L1 and the 2nd inlet wire L2, the 2nd inlet wire L2 and the 3rd inlet wire L3 respectively by the 1st automatic arc-suppressing device the 31, the 2nd from
Dynamic arc-extinction device 32 is connected.1st diode 11, direct-current isolating switch 21 are in parallel with the 1st automatic arc-suppressing device 31, and are located at
Between 1st inlet wire L1, outlet L0.1st diode 11, direct-current isolating switch 21, the 1st automatic arc-suppressing device the 31 and the 2nd are certainly
Dynamic arc-extinction device 32 is installed in cabinet 41, and wherein direct-current isolating switch 21 is electronic or manual.
With reference to Fig. 1,1st inlet wire L1 of combined type orientation conducting reflux of the present invention, the 2nd inlet wire L2, the 3rd inlet wire L3 difference
Between rail A3, two insulation are tied outside the library of parking lot on the left of the 1st insulation knot B1 right side main track rail A1, the 2nd insulation knot B2
Rail A2 is connected, combined type orientation conducting reflux outlet L0 connection traction substation cathode.Using the 1st diode
11st, the 2nd diode 12 ensure that the traction current on the rail of insulation knot B1 both sides is oriented each by this combined type and be connected
Independent diode branch in reflux flows back to traction substation cathode.When arbitrary diode branch breaks down, close
Upper direct-current isolating switch 21 makes the traction current homomergic flow on the 1st insulation knot B1 both sides rail return traction substation cathode.The
1 automatic arc-suppressing device 31, the 2nd automatic arc-suppressing device 32 are for the 1st insulation knot B1 of limitation respectively, the steel of the 2nd insulation knot B2 both sides
Rail potential difference increase, to avoid train by when generate arcing.
The combined type orientation conducting reflux of the present invention has the advantages that following aspects：
1st, it both can guarantee that rail reflux was unimpeded, and also can guarantee that parking lot was completely disconnected on electric loop with main track rail
It opens, avoids parking lot, the respective traction current electric current of main track rail is mutually disorderly gone here and there.
2nd, it is possible to prevente effectively from because the transition resistance of main track somewhere rail over the ground reduces, lead to leading on main track rail
Galvanic electricity stream is led back respectively by the earth, parking lot rail, device in one-way on state, the main track rail to come in and go out on field wire, is flowed back to just
The cathode of line traction substation, and a large amount of stray electrical current is formed, so as to reduce stray electrical current to the metal pipe line near parking lot
And the corrosion of building structure reinforcing bar；
3rd, can effectively solve from caused by a large amount of stray electrical currents that rail leaks in parking lot to rail hanging earthing conductor
Shi Chixu seriously discharges, and influences hanging earthing conductor operation and parking lot interior rail potential limiting device frequent movement etc. is a series of asks
Topic ensures operation security, reliable, and convenient for construction and installation and operation management and maintenance to the maximum extent.
Some compositions of reflux are connected in the combined type orientation that the above only explains through diagrams of the invention, are not
By the present invention be confined to shown in figure and the concrete structure and the scope of application in, it is therefore every it is possible that is be utilized is corresponding
Modification and equivalent belong to the apllied the scope of the claims of the present invention.
Claims (6)
1. combined type orientation conducting reflux, it is characterized in that：Including connecting main track rail on the right side of the 1st insulation knot (B1) respectively
(A1), the 1st inlet wire (L1), the 3rd inlet wire (L3) of rail (A3) outside the library of parking lot on the left of (B2) are tied in the 2nd insulation, connect two absolutely
The outlet (L0) of 2nd inlet wire (L2) of rail (A2) and connection traction substation cathode between edge knot；1st inlet wire
(L1) with the 2nd inlet wire (L2), the 2nd inlet wire (L2) and the 3rd inlet wire (L3) respectively by the 1st automatic arc-suppressing device (31), the 2nd automatic
Arc-extinction device (32) is connected；1st automatic arc-suppressing device (31) the 1st diode (11) of parallel connection, the 2nd diode (12) are connected to the 1st
Between diode (11) and outlet (L0)；Direct-current isolating switch (21) is connected across the 1st diode (11), the 2nd diode (12)
Both ends.
2. combined type orientation conducting reflux as described in claim 1, it is characterized in that：1st diode (11), the 2nd
Diode (12), direct-current isolating switch (21), the 1st automatic arc-suppressing device (31) and the 2nd automatic arc-suppressing device (32) are installed on cabinet
In body (41).The device may be disposed at open air and may also set up in indoor.
3. combined type orientation conducting reflux as claimed in claim 2, it is characterized in that：The direct-current isolating switch
(21) it is electronic or manual.
4. combined type orientation conducting reflux, it is characterized in that：Including connecting main track rail on the right side of the 1st insulation knot (B1) respectively
The 1st inlet wire (L1), the 3rd inlet wire (L3) of rail (A3), connect two insulation outside A1, the 2nd insulation knot (B2) left side parking lot library
The outlet (L0) of 2nd inlet wire (L2) of rail (A2) and connection traction substation cathode between knot；1st inlet wire
(L1) with the 2nd inlet wire (L2), the 2nd inlet wire (L2) and the 3rd inlet wire (L3) respectively by the 1st automatic arc-suppressing device (31), the 2nd automatic
Arc-extinction device (32) is connected；1st diode (11), direct-current isolating switch (21) are in parallel with the 1st automatic arc-suppressing device (31),
And between the 1st inlet wire (L1), outlet (L0).
5. combined type orientation conducting reflux as claimed in claim 4, it is characterized in that：1st diode (11), direct current
Disconnecting switch (21), the 1st automatic arc-suppressing device (31) and the 2nd automatic arc-suppressing device (32) are installed in cabinet (41).The device
Open air is may be disposed to may also set up in indoor.
6. combined type orientation conducting reflux as claimed in claim 4, it is characterized in that：The direct-current isolating switch (21) is
It is electronic or manual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052237.2A CN108162803B (en) | 2018-01-19 | 2018-01-19 | Combined directional conduction reflux device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052237.2A CN108162803B (en) | 2018-01-19 | 2018-01-19 | Combined directional conduction reflux device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108162803A true CN108162803A (en) | 2018-06-15 |
| CN108162803B CN108162803B (en) | 2023-07-18 |
Family
ID=62515346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810052237.2A Active CN108162803B (en) | 2018-01-19 | 2018-01-19 | Combined directional conduction reflux device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108162803B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109094427A (en) * | 2018-08-23 | 2018-12-28 | 南京铁道职业技术学院 | Metro stray current based on voltage compensation inhibits system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109094427A (en) * | 2018-08-23 | 2018-12-28 | 南京铁道职业技术学院 | Metro stray current based on voltage compensation inhibits system and method |
| CN109094427B (en) * | 2018-08-23 | 2023-09-22 | 南京铁道职业技术学院 | Subway stray current suppression system and method based on voltage compensation |
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| Publication number | Publication date |
|---|---|
| CN108162803B (en) | 2023-07-18 |
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