CN208564349U - A kind of gate insulation system - Google Patents
A kind of gate insulation system Download PDFInfo
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- CN208564349U CN208564349U CN201820923510.XU CN201820923510U CN208564349U CN 208564349 U CN208564349 U CN 208564349U CN 201820923510 U CN201820923510 U CN 201820923510U CN 208564349 U CN208564349 U CN 208564349U
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- gate
- platform
- insulating
- insulating layer
- ground
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Abstract
The utility model discloses a kind of gate insulation systems; gate including being installed in platform ground; the upper and lower part of the gate passes through insulating support and the attaching of platform ground respectively; the platform region that platform ground corresponds to gate is equipped with platform insulating layer; the exposed metal surface of gate is equipped with insulating layer; and the door body structure of the gate is connect by ground path with the earth, is installed with over-voltage protector on the ground path.The utility model is by way of cancelling traditional gate and track equipotential link; but gate is grounded by over-voltage protector; insulating layer is set in the exposed metal of gate simultaneously; so that being electrically insulated between gate and track; so as to be effectively protected personnel near platform, when electric fault occurs, overvoltage protector is connected; fault current flows to the earth by gate, it is ensured that passenger or the safety of staff.
Description
Technical field
The utility model relates to a kind of gate insulation systems.
Background technique
Gate is mounted on platform, the personnel for being isolated on track and platform.Due to existing between track and the earth
The voltage of 90V-150V, in order to avoid the touch voltage between platform door and track, current gate by up and down
Portion's insulating support and the earth are insulated, not less than 0.5M ohm of insulation resistance (using 500V voltage measurement), meanwhile, gate knot
Structure guarantees that platform door is equal with train current potential, it is ensured that passenger getting on/off by equipotential cable and track equipotential link
When personal safety.
Due to gate and track equipotential link, dangerous touch voltage exists between gate and platform.
In order to which danger is reduced to minimum, one about 0.9 meter ~ 2 meters of insulating regions are established before gate.This be by
Insulating film is laid on platform or insulate what floor was realized.The insulation values on insulating film or floor of insulating cannot be below 0.5M ohm and (use
500V voltage measurement).
In addition, the stray electrical current from track flows through gate and makes to surrounding people in order to prevent according to the above
At injury, gate needs to insulate with platform, this is to be carried out the upper and lower ends of gate and platform by using insulating support
Isolation, to realize electrical isolation.According to above-described design, the insulation performance of the gate is more in high humility or dust
Environment in can fail and deteriorate, such as when vehicle crosses platform, metal powder, dust, oil or etchant gas can adhere to
On the insulated part of gate, and its impedance and insulation performance are gradually decreased so that finally losing the effect of electrical isolation, thus
It causes passenger by the injury of the contact voltage between track and gate, or even connection track and gate can be burnt out
Cable.In addition, the stray electrical current can flow to platform from track by gate, and can be because electric arc or rate improve
Corrosion and damage gate metal part and the metallic conduit near platform.
In order to avoid being insulated between the gate and track that destroy and generate the cable sparking that integrates with, some vehicles because of gate
The gate stood eliminates the equipotential link with track, but this can bring another security risk again, when gate or attached
When nearly electrical equipment causes gate to charge because of electric fault, since gate does not carry out any grounding connection, as passenger or
When staff touches gate, human body, which is possible to have fault current, to be flowed through, to endanger personal safety.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of gate insulation systems, by cancelling traditional platform
The mode of door and track equipotential link, but gate is grounded by over-voltage protector, while in the exposed of gate
Metal sets insulating layer, so that being electrically insulated between gate and track, so as to be effectively protected personnel near platform, occurs electrical
When failure, overvoltage protector is connected, and fault current flows to the earth by gate, it is ensured that passenger or the peace of staff
Entirely.
In order to solve the above-mentioned technical problem, the utility model takes following technical scheme:
A kind of gate insulation system, the gate including being installed in platform ground, the upper and lower part of the gate
Respectively by insulating support and the attaching of platform ground, the platform region that platform ground corresponds to gate is equipped with platform insulating layer, stands
The exposed metal surface of platform door is equipped with insulating layer, and the door body structure of the gate is connect by ground path with the earth, should
Over-voltage protector is installed on ground path.
The insulating layer includes the insulating coating at least one layer of exposed metal surface for being coated in gate.
The insulating coating is made of polyvinylidene fluoride (PVDF) material.
The insulating layer outer surface is additionally provided with external insulation layer.
The external insulation layer includes at least one layer of outer made of wear-resistant insulating materials coated in insulating layer outer surface
Insulating coating.
The external insulation coating is made of vitreous enamel (VE).
The utility model increases the insulation processing of gate exposed metal structure, and the equipotential for cancelling gate and track connects
It connects, so that being electrically insulated between gate door body structure and platform, while also to be electrically insulated between gate and track, it is ensured that
Being electrically insulated between gate and platform between gate and track, so as to be effectively protected personnel near platform, such as
Passenger or staff not will receive the injury of contact voltage, meanwhile, gate passes through over-voltage protector and the earth
Connection, under normal circumstances, gate and the earth are insulated, when the electrification of gate electric fault is more than setting voltage (such as 120V),
Over-pressure safety device is connected, gate and the earth equipotential, and fault current flows to the earth by gate, it is ensured that passenger or
The safety of person staff.
Detailed description of the invention
Attached drawing 1 is the utility model partial cutaway schematic.
Specific embodiment
For the feature, technological means and specific purposes achieved, function that can further appreciate that the utility model, below
The utility model is described in further detail in conjunction with attached drawing and specific embodiment.
As shown in Fig. 1, the utility model discloses a kind of gate insulation system, including being installed in platform ground 6
Gate, the upper and lower part of the gate 2 pass through insulating support 5 and 6 attaching of platform ground respectively, and platform ground 6 is corresponding
The platform region of gate 2 is equipped with platform insulating layer 7, and the exposed metal surface of gate 2 is equipped with insulating layer 3, and the platform
The door body structure of door 2 is connect by ground path 8 with the earth, is installed with over-voltage protector 9 on the ground path 8.Gate
Not with track equipotential link, but by over-voltage protector with greatly connect, the fault current of generation passes through overvoltage protection
Device flows into the earth.
The insulating layer includes the insulating coating at least one layer of exposed metal surface for being coated in gate, it is ensured that gate
With good insulation performance.The insulating coating is made of polyvinylidene fluoride (PVDF) material.It is preferable to provide five layers of insulation
Coating, i.e. insulating layer are total to five-layer structure, are conducive to the wear-resisting and corrosion resistance for enhancing the electrically insulated structures, it can be highly beneficial
Resistance high humility or the big environment of dust caused by insulation performance decay, that is, guarantee that the gate with the coating can have length
The insulation effect of service life.
By the way that the exposed metal in platform station is applied insulating layer coating, when passenger touches gate and train door simultaneously, even if station
Platform door insulating mounting is destroyed, but since gate surface insulation resistance value is very big, even if there is touchings for gate and train door
Voltage is touched, since loop resistance value is very big, the electric current of passenger's person is flowed through also within the scope of safe current, passenger will not be caused
Human body harm.
In addition, 3 outer surface of insulating layer is additionally provided with external insulation layer 4.External insulation layer includes that at least one layer of be coated in is insulated
The external insulation coating made of wear-resistant insulating materials of layer outer surface.External insulation coating is made of vitreous enamel (VE).The external insulation
Layer is coated with insulating layer, by the external insulation layer, not only plays insulating effect, but also play the work for preventing insulating layer by premature abrasion
With.So that the performance that not only there is platform door device the electrical insulation capability of high impedance also to have high abrasion, that is, prevent for example because
By the external world friction or corrosion influenced so that the electrical insulation capability of insulating layer and/or external insulation layer decaying or deteriorate, from
And the gate with two kinds of electrically insulated structures is made to have reliable, stable and be insulation and isolation effect with long service life
Fruit.External insulation layer is especially coated in high eroded area, such as the grip area of gate.
In the utility model, by setting gate and track without equipotential link, stray electrical current on track without
Method flow to gate by track, even if the insulation of gate is destroyed, the stray electrical current on track will not pass through platform
Door flow direction the earth, corrodes the metallic conduit of surrounding.
And voltage protector is directly over by gate and is connect with the earth, under normal circumstances, gate and the earth insulate；
When electric fault occur in gate or surrounding electrical equipment, and gate is caused to charge, when voltage is more than setting voltage (such as 120V)
When, over-pressure safety device will turn on, and gate and the earth equipotential, passenger or operator station touch station on platform
When platform door, touch voltage is not had.
The application is directly grounded by insulating layer and gate, can effectively be carried out between gate and track and platform
Door with being electrically insulated between platform, prevent personnel by the injury of such as stray electrical current and contact voltage.
Platform exposed metal portions smear insulating materials (PVDF), it is ensured that its insulation values (uses 500V not less than 0.5M ohm
Voltage measurement), if the insulating mounting of gate destroyed or, or connection gate and the earth over-pressure safety device OVPD
It connects, at this point, the ground resistance between platform station door and the earth is 0, works as passenger getting on/off, while touching train door and gate
When, since gate surface insulation value is very high, by the electric current of human body well below the safe current that human body can bear
(25mA) will not damage passenger.
It is as follows to flow through body current calculating:
Imax=VTmax/(RB+RC),
Wherein
VTmax is maximum touch voltage,
RBFor human body resistance: according to IEC 60479-1 standard, hand to the human body resistance between foot is about 770 ohm.
RCFor gate insulation resistance, 0.5M,
According to EN50122-1 standard, maximum touch voltage is 150VDC,
Therefore, Imax=150/ (500000+770)=0.3MA,
According to IEC 60479-1 standard, the maximum safe current for flowing through human body is therefore 25MA using this scheme, flows through
The electric current of human body is far smaller than 25MA.
It should be noted that it is practical new to be not limited to this above is only the preferred embodiment of the utility model
Type, although the utility model is described in detail referring to embodiment, for those skilled in the art, still
It can modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features,
But within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in
Within the protection scope of the utility model.
Claims (6)
1. a kind of gate insulation system, the gate including being installed in platform ground, which is characterized in that the gate it is upper
Portion and lower part pass through insulating support and the attaching of platform ground respectively, and it is exhausted that the platform region that platform ground corresponds to gate is equipped with platform
Edge layer, the exposed metal surface of gate is equipped with insulating layer, and the door body structure of the gate passes through ground path and the earth
It connects, is installed with over-voltage protector on the ground path.
2. gate insulation system according to claim 1, which is characterized in that the insulating layer includes at least one layer of coating
Insulating coating on the exposed metal surface of gate.
3. gate insulation system according to claim 2, which is characterized in that the insulating coating is by polyvinylidene fluoride
(PVDF) material is made.
4. gate insulation system according to claim 3, which is characterized in that the insulating layer outer surface is additionally provided with outer exhausted
Edge layer.
5. gate insulation system according to claim 4, which is characterized in that the external insulation layer includes at least one layer of applies
Overlay on the external insulation coating made of wear-resistant insulating materials of insulating layer outer surface.
6. gate insulation system according to claim 5, which is characterized in that the external insulation coating is made by vitreous enamel (VE)
At.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820923510.XU CN208564349U (en) | 2018-06-14 | 2018-06-14 | A kind of gate insulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820923510.XU CN208564349U (en) | 2018-06-14 | 2018-06-14 | A kind of gate insulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208564349U true CN208564349U (en) | 2019-03-01 |
Family
ID=65485984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820923510.XU Active CN208564349U (en) | 2018-06-14 | 2018-06-14 | A kind of gate insulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208564349U (en) |
-
2018
- 2018-06-14 CN CN201820923510.XU patent/CN208564349U/en active Active
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