CN104973072A - Apparatus and method for preventing subway platform shield door from being electrified - Google Patents
Apparatus and method for preventing subway platform shield door from being electrified Download PDFInfo
- Publication number
- CN104973072A CN104973072A CN201510468785.XA CN201510468785A CN104973072A CN 104973072 A CN104973072 A CN 104973072A CN 201510468785 A CN201510468785 A CN 201510468785A CN 104973072 A CN104973072 A CN 104973072A
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- China
- Prior art keywords
- equipotential
- voltage diode
- cable
- shield door
- platform
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B1/00—General arrangement of stations, platforms, or sidings; Railway networks; Rail vehicle marshalling systems
- B61B1/02—General arrangement of stations and platforms including protection devices for the passengers
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
Abstract
An apparatus for preventing a subway platform shield door from being electrified comprises an equal potential cable connecting contact disposed on a rail waist of a steel rail; the equal potential cable connecting contact is connected with a cathode of a high voltage diode via an equal potential cable; the equal potential cable connecting contact is simultaneously grounded; and the anode of the high voltage diode is connected with an equal potential connecting bolt of the shield door via another equal potential cable. The method is that: when the track potential rises and the current flows to the shield door from the track through the equal potential cable due to stray current and rail return current, reverse blocking current of the high voltage diode flows to the anode from the cathode due to the fact that the voltage of the cathode of the high voltage diode is higher than the voltage of the anode of the high voltage diode, so that the subway platform shield door is prevented from being electrified. The subway platform shield door is fundamentally prevented from being electrified, passengers are effectively prevented from electric shock, safety of the passengers getting on and off a train is ensured, sparking at gaps between shield door system self mechanical structures is prevented, and therefore the electric safety problem caused by the platform shield door is solved.
Description
Technical field
The present invention relates to a kind of device and method preventing metro platform shield door charged.
Background technology
At present, track platform screen door adopts and integrates with, i.e. shielded gate and track equipotential, with ground insulating mounting.That is: shielded gate protecting metal door body adopts insulating mounting, and insulating mounting is implemented by insulating component (insulation sleeve) and civil engineering structure in shielding every body top, lower metal component.Platform edge lays insulating tape.Shielded gate protecting metal door body is connected with rail by equipotential cable, i.e. all metal pieces of shielded gate and track, vehicle equipotential link.Shielded gate is along platform edge installation parallel with vehicle, and gap between train is very little, passenger's limbs when getting on and off be easy to simultaneously with train envelope, shield every body and contact.In order to avoid the difference of potential between rail and shielded gate damages upper and lower passenger, the two must be made to keep equipotential.In order to avoid the difference of potential between shielded gate and the earth damages marquis's car passenger, must arrange insulating tape in passenger region (may touch shielding every body) of waiting, the electric current that may flow through human body drops in safe range.
The personal safety of the main collateral security passenger of this equipotential link mode and operation personnel is set out, the contact potential that the passenger of upper and lower train and operation personnel may be occurred, by the current limit of human body to zero, avoid the generation of shock hazard.But there is some problems in practice.When not being found when insulating tape performance reduces or damage, now stray current, track potential raises, the reasons such as rail return current cause electric current flow to shielded gate from track by equipotential cable and make shielded gate charged, passenger is probably made to get an electric shock, and the civil engineering hard ware distance of charged shielded gate protecting metal door body and top case and band current potential is very near, easily causes and punctures, strikes sparks or burn, be easy to initiation fire.
Subway shield door Issues on Static Electrification is the problem that platform screen door field fails effectively to solve for many years.
Summary of the invention
For overcoming above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of device and method preventing metro platform shield door charged, fundamentally prevent track platform screen door charged, effectively prevent passenger from getting an electric shock, ensure the passenger safety of upper and lower train and prevent the interstructural gap location sparking of screen door its own mechanical, and then without the need to considering the electrical safety problems that platform screen door brings.
For achieving the above object, the technical solution used in the present invention is:
Prevent the device that metro platform shield door is charged, include the equipotential cable connecting terminal be located on steel rail web; Equipotential cable connecting terminal is connected with the negative pole of high-voltage diode by equipotential cable; Equipotential cable connecting terminal is ground connection simultaneously; The positive pole of high-voltage diode is connected with the equipotential connection connecting bolt of shielded gate by another root equipotential cable.
The equipotential bolt of described platform screen door is all metal piece equipotential cable equipotential link in whole screen door.
Prevent the method that metro platform shield door is charged, comprise the following steps:
1) be welded on one end of an equipotential cable on the equipotential cable connecting terminal on steel rail web, the other end of equipotential cable is connected with the negative pole of high-voltage diode; The one end of the equipotential cable that another root is identical is connected to the positive pole of high-voltage diode, and the other end is connected on the equipotential connection connecting bolt of platform screen door;
2) all metal pieces of platform screen door are connected with equipotential connection connecting bolt with equipotential cable;
3) when track potential raises, stray current, when rail return current causes electric current to flow to shielded gate from track by equipotential cable 7, high-voltage diode 6 cathode voltage causes high-voltage diode reverse blocking current to flow to positive pole from negative pole higher than cathode voltage, and then stops platform screen door charged.
the invention has the beneficial effects as follows:
Because the present invention is provided with high-voltage diode between rail and equipotential cable; all metal pieces of platform screen door are connected with equipotential connection connecting bolt with equipotential cable simultaneously; electric current is allowed to flow to negative pole from positive pole; block electric current and flow to positive pole from negative pole; have oppositely high pressure resistant, the conducting of forward low pressure, avalanche voltage breakdown protection; surface has resistance to corrosion, the feature of easy-to-connect.
Make shielded gate charged without the need to worrying the reasons such as track potential rising, rail return current to cause electric current to flow to shielded gate from track, and then without the need to worrying that train enters the station passenger getting on/off, the electrical safety problems that shielded gate brings, the present invention also have structure simple, arrange conveniently, safety is high.
Accompanying drawing explanation
Fig. 1 is platform screen door of the present invention and rail equipotential link schematic diagram.
Fig. 2 is that platform screen door equipotential cable of the present invention connects enlarged diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See Fig. 1,2, a kind of device preventing metro platform shield door charged, includes the equipotential cable connecting terminal 1 be located on rail 5 web of the rail; Equipotential cable connecting terminal 1 is connected with the negative pole of high-voltage diode 6 by equipotential cable 7; Equipotential cable connecting terminal 1 ground connection simultaneously of rail; The positive pole of high-voltage diode 6 is connected with the equipotential connection connecting bolt 16 of shielded gate by another root equipotential cable 7.
The equipotential bolt of described platform screen door is the metal piece equipotential cable equipotential link such as all door bodies, column in whole screen door.
Described high-voltage diode 6 is fixed in platform supporting construction 8.
Described equipotential cable 7 one end is welded on steel rail web, and the other end is connected to the negative pole of high-voltage diode 6; The one end of the equipotential cable that another root is identical is connected to the positive pole of high-voltage diode 6, and the other end is connected on the equipotential connection connecting bolt of platform screen door.
Described high-voltage diode 6 flows to negative pole for allowing electric current from positive pole, blocks electric current and flows to positive pole from negative pole, can be oppositely high pressure resistant, and the conducting of forward low pressure, places avalanche voltage breakdown protection.
It is train 2 above rail 5; The side of train 2 is platform supporting construction 8, is provided with insulating barrier 3 between platform supporting construction 8 and platform decorative cover 4; Binding bolt 17 is provided with in platform supporting construction 8, below shielding every body 9; Shielding every body 9 top is shielding header case 10; Shielding header case 10 is connected with end door back timber 13; End door back timber 13 bottom is platform furred ceiling layer 11; The top of train 2 is platform back timber 12; Cable testing bridge 14 and air channel 15 is provided with in the space that platform back timber 12 and end door back timber 13 are formed.
Prevent the method that metro platform shield door is charged, comprise the following steps:
1) be welded on one end of an equipotential cable 7 on the equipotential cable connecting terminal 1 on steel rail web, the other end of equipotential cable 7 is connected with the negative pole of high-voltage diode 6; The one end of the equipotential cable that another root is identical is connected to the positive pole of high-voltage diode 6, and the other end is connected on the equipotential connection connecting bolt of platform screen door;
2) all metal pieces of platform screen door are connected with equipotential connection connecting bolt with equipotential cable;
3) when track potential raises, stray current, when rail return current causes electric current to flow to shielded gate from track by equipotential cable 7, high-voltage diode 6 cathode voltage causes high-voltage diode reverse blocking current to flow to positive pole from negative pole higher than cathode voltage, and then stops platform screen door charged.
Claims (4)
1. prevent the device that metro platform shield door is charged, it is characterized in that, include the equipotential cable connecting terminal (1) be located on rail (5) web of the rail; Equipotential cable connecting terminal (1) is connected by the negative pole of equipotential cable (7) with high-voltage diode (6); Equipotential cable connecting terminal (1) ground connection simultaneously of rail; The positive pole of high-voltage diode (6) is connected with the equipotential connection connecting bolt (16) of platform screen door by another root equipotential cable (7).
2. a kind of device preventing metro platform shield door charged according to claim 1, is characterized in that, the equipotential bolt of described platform screen door is all metal piece equipotential cable equipotential link in whole screen door.
3. a kind of device preventing metro platform shield door charged according to claim 1, is characterized in that, described high-voltage diode (6) is fixed in platform supporting construction (8).
4. prevent the method that metro platform shield door is charged, it is characterized in that, comprise the following steps:
1) be welded on one end of an equipotential cable on the equipotential cable connecting terminal on steel rail web, the other end of equipotential cable is connected with the negative pole of high-voltage diode; The one end of the equipotential cable that another root is identical is connected to the positive pole of high-voltage diode, and the other end is connected on the equipotential connection connecting bolt of platform screen door;
2) all metal pieces of platform screen door are connected with equipotential connection connecting bolt with equipotential cable;
3) when track potential raises, stray current, when rail return current causes electric current to flow to shielded gate from track by equipotential cable, high-voltage diode cathode voltage causes high-voltage diode reverse blocking current to flow to positive pole from negative pole higher than cathode voltage, and then stops platform screen door charged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510468785.XA CN104973072A (en) | 2015-08-04 | 2015-08-04 | Apparatus and method for preventing subway platform shield door from being electrified |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510468785.XA CN104973072A (en) | 2015-08-04 | 2015-08-04 | Apparatus and method for preventing subway platform shield door from being electrified |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104973072A true CN104973072A (en) | 2015-10-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510468785.XA Pending CN104973072A (en) | 2015-08-04 | 2015-08-04 | Apparatus and method for preventing subway platform shield door from being electrified |
Country Status (1)
| Country | Link |
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| CN (1) | CN104973072A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283884A (en) * | 2018-09-18 | 2019-01-29 | 成都汇辙科技有限公司 | Gate equipotential intelligence conducting device |
Citations (5)
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|---|---|---|---|---|
| CN101471523A (en) * | 2007-12-27 | 2009-07-01 | 方大集团股份有限公司 | Equipotential connection device for slide door of subway shielding door system |
| CN202115508U (en) * | 2011-05-11 | 2012-01-18 | 汤永光 | Electric potential connecting device between shielded gate and underground track |
| CN203932993U (en) * | 2014-06-25 | 2014-11-05 | 张开波 | The special gate current potential restriction of a kind of city track traffic engineering and current-limiting apparatus |
| KR101518136B1 (en) * | 2013-12-09 | 2015-05-07 | 김호식 | Safety Bridge System for Railway Platform |
| CN204871002U (en) * | 2015-08-04 | 2015-12-16 | 陕西科技大学 | Device for preventing subway platform shield door is electrified |
-
2015
- 2015-08-04 CN CN201510468785.XA patent/CN104973072A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101471523A (en) * | 2007-12-27 | 2009-07-01 | 方大集团股份有限公司 | Equipotential connection device for slide door of subway shielding door system |
| CN202115508U (en) * | 2011-05-11 | 2012-01-18 | 汤永光 | Electric potential connecting device between shielded gate and underground track |
| KR101518136B1 (en) * | 2013-12-09 | 2015-05-07 | 김호식 | Safety Bridge System for Railway Platform |
| CN203932993U (en) * | 2014-06-25 | 2014-11-05 | 张开波 | The special gate current potential restriction of a kind of city track traffic engineering and current-limiting apparatus |
| CN204871002U (en) * | 2015-08-04 | 2015-12-16 | 陕西科技大学 | Device for preventing subway platform shield door is electrified |
Non-Patent Citations (1)
| Title |
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| 杜宏民等: "地铁屏蔽门绝缘安装相关问题探讨", 《都市快轨交通》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283884A (en) * | 2018-09-18 | 2019-01-29 | 成都汇辙科技有限公司 | Gate equipotential intelligence conducting device |
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Application publication date: 20151014 |
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| RJ01 | Rejection of invention patent application after publication |