CN205543272U - Flexible earthing device of graphite -based - Google Patents
Flexible earthing device of graphite -based Download PDFInfo
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- CN205543272U CN205543272U CN201620067865.4U CN201620067865U CN205543272U CN 205543272 U CN205543272 U CN 205543272U CN 201620067865 U CN201620067865 U CN 201620067865U CN 205543272 U CN205543272 U CN 205543272U
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Abstract
The utility model provides a flexible earthing device of graphite -based to the earthing device that solves the metal material that exists and non - metal material among the prior art can't show and is reducing that ground resistance, life lack, the less technical problem of application scope. Flexible earthing device of graphite -based, including the earth connection of vertical setting, the upper end of earth connection is connected with ground terminal, the lower extreme is connected with earthing conductor, the earth connection is made through different wiring and establishment mode by the flexible graphite line, earthing conductor is made through different wiring and establishment mode by the flexible graphite line. Flexible earthing device of graphite -based is used for railway and urban rail transit earth work.
Description
Technical field
This utility model relates to railway and city track traffic engineering technical field, especially relates to
And one graphite-based flexible ground device.
Background technology
Railway and city track traffic engineering be made up of multiple different majors system engineering one
Kind of complex engineering, variant professional system for grounding requirement different, its ground connection kind
Class according to the difference of professional system, can be divided into working earthing, protective grounding (safety ground),
Lightning protection, logic ground, bonding, signal ground, anti-static grounding and electric corrosion prevention
Ground connection etc., all kinds of ground connection are all realized by grounding device, its effect and purpose, all
In order to ensure railway and urban track traffic electric power, traction power supply, contact net system normal
Run, it is ensured that the use safety of each professional system corresponding device, and ensure use and operate
The safety of the personnel of this system, therefore, the quality of earth work directly influences railway and city
The safety in utilization of city's track traffic.At present, railway and urban track traffic grounding device master
Metal material grounding device to be used includes copper coin, copper stranded conductor, round steel, angle steel and flat
Steel etc., the main nonmetallic materials grounding device used includes graphite block.
Specifically, for metal material grounding device, some soil type and some
Under environment, metal material grounding device is the most inapplicable, such as, when soil resistivity is higher,
Metal material grounding resistance of transmission is extremely difficult to the numerical value that design specification requires, or,
When being limited by special topography condition, metal material grounding device cannot be implemented to bury underground, thus
Cause the metal material grounding device scope of application less；It addition, it is stronger in acid-alkali salt corrosivity
Soil in, in a short period of time, metal material grounding device can occur chemical attack and
Electrochemical corrosion, makes grounding device ineffective, thus results in metal material grounding device
Service life is shorter, increases earth work and repeats the cost of investment of transformation.
For nonmetallic materials grounding device, due to the distinctive corrosion resistance of graphite, well
Electric conductivity, higher cost performance and the nonstaining property to environment, graphite is nonmetallic materials
The first-selection of grounding device.The graphite block used in existing this area, is to be used compacting by graphite
Technique is made, and the centre of graphite block is equipped with metal bar, and metal bar is as grounding device
Ground electrode, but, due to compacting after graphite block good with what metal bar be combined with each other
Property is poor, the phenomenon that graphite block and metal material are disconnected from each other easily occurs, seriously hinders
The reduction of earth resistance, also results in the unstability of earth resistance.
In sum, the metal material that railway of the prior art and urban track traffic use
And the grounding device of nonmetallic materials, it is impossible to significantly reduce earth resistance, and, metal material
Material grounding device service life shorter, the scope of application is less, earth work cost is higher and
Raw material sources mode is easily caused environmental pollution.
For railway and the use situation of urban track traffic grounding device, this utility model carries
For the graphite-based flexible ground device of a kind of railway and urban track traffic earth work, with
The grounding device solving existing metal material and nonmetallic materials cannot significantly reduce ground connection electricity
The problem of resistance, and the service life of metal material grounding device is shorter, the scope of application is less,
Earth work cost is higher and the problem that is easily caused environmental pollution.
Utility model content
The purpose of this utility model is to provide a kind of graphite-based flexible ground device, to solve
Present in prior art, the grounding device of metal material and nonmetallic materials cannot significantly reduce
Earth resistance, the technical problem that service life is shorter, the scope of application is less.
For reaching above-mentioned purpose, this utility model embodiment by the following technical solutions:
A kind of graphite-based flexible ground device, including the earth lead being vertically arranged, described ground connection
The upper end of line connects has ground terminal, lower end connection to have earth conductor, and described earth lead is by soft
Property graphite line is made through different wirings and form of presentation, and described earth conductor is by soft graphite
Line is made through different wirings and form of presentation.
As the further improvement of technique scheme, in this utility model, described ground connection is led
Body includes horizontal conductor and vertical conductor, and the lower end of described earth lead connects described level
Formula conductor, described vertical conductor is connected on described horizontal conductor and is positioned at described water
The lower section of flat conductor.
As the further improvement of technique scheme, in this utility model, described horizontal
Conductor is multiple, and multiple described horizontal conductors are sequentially connected with, described earth lead and multiple institutes
State one of them connection of horizontal conductor.
Further, the junction of adjacent two described horizontal conductors connects has described in one
Vertical conductor, multiple described vertical conductors are equal along the horizontal direction of described horizontal conductor
Even arrangement.
As the further improvement of technique scheme, in this utility model, described earth lead
It is connected by the fixture that continues with described ground terminal, described earth lead and described horizontal conductor
By continuing, fixture connects, and adjacent two described horizontal conductors are connected by the fixture that continues,
Described horizontal conductor is connected by the fixture that continues with described vertical conductor.
As the further improvement of technique scheme, the grounding device that this utility model provides
In use, part be embedded in underground described earth lead be provided around swelling agent.
As the further improvement of technique scheme, the grounding device that this utility model provides
In use, be all embedded in underground described earth conductor be provided around swelling agent.
Further improvement as technique scheme, it is preferable that sheathed on described earth lead
There is insulating protection sleeve pipe.
As the further improvement of technique scheme, in this utility model, described ground connection is led
Body system of laying in soil is in-line, snakelike, L-shaped, M shape, annular or puts
Penetrate shape.
As the further improvement of technique scheme, in this utility model, described in continue folder
Tool is yi word pattern, T-shaped, L-type or cross.
Preferably, in this utility model, described in the fixture that continues be metal material or non-metallic material
Matter.
The graphite-based flexible ground device that this utility model provides, its earth lead is by soft graphite
Line is made through different wirings and form of presentation, is graphite-based flexible ground line, its ground connection
Conductor is made up through different wirings and form of presentation of soft graphite line, is graphite-based flexible
Earth conductor；During use, part graphite-based flexible ground line and whole graphite-based flexibility are connect
Earthed conductor is embedded in soil, and earth lead connects other devices of top by ground terminal.
In prior art, under some soil type and some environment, metal material ground connection fills
Put and inapplicable, cause the metal material grounding device scope of application less；Corrode at acid-alkali salt
In the soil that property is stronger, metal material grounding device can occur chemical attack and electrochemical corrosion,
The service life causing metal material grounding device is shorter；It addition, used in existing this area
Graphite block, be equipped with metal bar in the middle of it, metal bar as the ground electrode of grounding device,
Owing to the graphite block after compacting is poor with the formedness that metal bar be combined with each other, seriously hinder
The reduction of earth resistance, causes the unstability of earth resistance.
Compared to prior art, the graphite-based flexible ground device that this utility model provides, by
In graphite-based flexible ground line, graphite-based flexible ground conductor, there is good electric conductivity, anti-
Corrosivity, flexibility, mechanicalness, heat stability and cohesive propertiesof soil, these characteristics make
Graphite-based flexible ground line, the electric property of graphite-based flexible ground conductor, physicochemical property and
Mechanical property all can meet railway and the needs of urban track traffic earth work, therefore, by
The grounding device of graphite-based flexible ground line, graphite-based flexible ground conductor composition, this device
The good cohesive propertiesof soil that possessed, flexibility so that it is bonds well can be carried out with soil,
Add its satisfactory electrical conductivity possessed so that it is earth resistance can be significantly reduced；It addition,
Good corrosion resistance that this device is possessed and heat stability, it is possible to effectively prevent it in acid
The soil that alkalescence is stronger occurs chemical attack or electrochemical corrosion, is prolonged its service life
Long, earth work repeats the cost of investment of transformation and is minimized；Furthermore, this device possesses
These characteristics so that it is can adapt to the soil of various soil property and the most special various use ring
Border, the scope of application expanded of this device；These advantages above-mentioned so that this device can
It is effectively improved railway and urban rail transit equipment runs safety and personal safety；It addition,
The source mode of graphite is different from the source mode of metal material, it is not necessary to through pyrolytic semlting
Industrial procedure, can effectively prevent environment.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or skill of the prior art
Art scheme, below by detailed description of the invention or description of the prior art required use attached
Figure is briefly described, it should be apparent that, the accompanying drawing in describing below is of the present utility model
Some embodiments, for those of ordinary skill in the art, are not paying creative labor
On the premise of Dong, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The signal of the graphite-based flexible ground device that Fig. 1 provides for this utility model embodiment
Figure.
Reference:
1-earth lead；2-earth conductor；
3-ground terminal；4-continues fixture；
5-swelling agent；6-insulating protection sleeve pipe；
21-horizontal conductor；22-vertical conductor.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely retouched
State, it is clear that described embodiment is a part of embodiment of this utility model rather than complete
The embodiment in portion.Based on the embodiment in this utility model, those of ordinary skill in the art exist
Do not make the every other embodiment obtained under creative work premise, broadly fall into this reality
By novel protected scope.
In description of the present utility model, it should be noted that term " " center ", " on ",
The orientation of the instruction such as D score, "left", "right", " vertically ", " level ", " interior ", " outward "
Or position relationship is based on orientation shown in the drawings or position relationship, it is for only for ease of description
This utility model and simplification describe rather than indicate or imply that the device of indication or element are necessary
There is specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The restriction of utility model.Additionally, term " first ", " second ", " the 3rd " are only used for retouching
State purpose, and it is not intended that indicate or hint relative importance.
The signal of the graphite-based flexible ground device that Fig. 1 provides for this utility model embodiment
Figure, refers to Fig. 1, the graphite-based flexible ground device that this utility model embodiment provides,
Including the earth lead 1 being vertically arranged, the upper end of described earth lead 1 connect have ground terminal 3,
Lower end connect have earth conductor 2, described earth lead 1 by soft graphite line through different wirings
Make with form of presentation, described earth conductor 2 by soft graphite line through different wirings and volume
Mode processed is made.
The graphite-based flexible ground device that this utility model provides, its earth lead is by soft graphite
Line is made through different wirings and form of presentation, is graphite-based flexible ground line, its ground connection
Conductor is made up through different wirings and form of presentation of soft graphite line, is graphite-based flexible
Earth conductor；During use, part graphite-based flexible ground line and whole graphite-based flexibility are connect
Earthed conductor is embedded in soil, and earth lead connects other devices of top by ground terminal.
In prior art, under some soil type and some environment, metal material ground connection fills
Put and inapplicable, cause the metal material grounding device scope of application less；Corrode at acid-alkali salt
In the soil that property is stronger, metal material grounding device can occur chemical attack and electrochemical corrosion,
The service life causing metal material grounding device is shorter；It addition, used in existing this area
Graphite block, be equipped with metal bar in the middle of it, metal bar as the ground electrode of grounding device,
Owing to the graphite block after compacting is poor with the formedness that metal bar be combined with each other, seriously hinder
The reduction of earth resistance, causes the unstability of earth resistance.
Compared to prior art, the graphite-based flexible ground device that this utility model provides, by
In graphite-based flexible ground line, graphite-based flexible ground conductor, there is good electric conductivity, anti-
Corrosivity, flexibility, mechanicalness, heat stability and cohesive propertiesof soil, these characteristics make
Graphite-based flexible ground line, the electric property of graphite-based flexible ground conductor, physicochemical property and
Mechanical property all can meet railway and the needs of urban track traffic earth work, therefore, by
The grounding device of graphite-based flexible ground line, graphite-based flexible ground conductor composition, this device
The good cohesive propertiesof soil that possessed, flexibility so that it is bonds well can be carried out with soil,
Add its satisfactory electrical conductivity possessed so that it is earth resistance can be significantly reduced；It addition,
Good corrosion resistance that this device is possessed and heat stability, it is possible to effectively prevent it in acid
The soil that alkalescence is stronger occurs chemical attack or electrochemical corrosion, is prolonged its service life
Long, earth work repeats the cost of investment of transformation and is minimized；Furthermore, this device possesses
These characteristics so that it is can adapt to the soil of various soil property and the most special various use ring
Border, the scope of application expanded of this device；These advantages above-mentioned so that this device can
It is effectively improved railway and urban rail transit equipment runs safety and personal safety；It addition,
The source mode of graphite is different from the source mode of metal material, it is not necessary to through pyrolytic semlting
Industrial procedure, can effectively prevent environment.
In actually used, the maximum earth short circuit current steady-state value flow through at earth lead meets short
On the premise of the thermally-stabilised requirement in road, according to the difference of inoculation kind, needed for determining earth lead
Actual cross-sectional area, and, in order to the determination making earth lead cross-sectional area is more reasonable, smart
Really, graphite-based flexible ground line uses soft graphite line wiry or the flexibility of chemical fibre
Graphite line.Wherein, soft graphite line wiry refer to graphite through expanded, compacting after,
With the tinsel graphite line by adhesive bond；The soft graphite line of chemical fibre is
Refer to graphite through expanded, compacting after, with the chemical fibre graphite by adhesive bond
Line.
Please continue to refer to Fig. 1, as the further improvement of technique scheme, this practicality is new
In type embodiment, described earth conductor 2 includes horizontal conductor 21 and vertical conductor 22,
The lower end of described earth lead 1 connects described horizontal conductor 21, described vertical conductor 22
It is connected on described horizontal conductor 21 and is positioned at the lower section of described horizontal conductor 21.
Describing as the one of the earth conductor of offer in this utility model embodiment of the preceding paragraph
Preferred embodiment, in actual enforcement, requires not according to soil resistivity and earth resistance
With, graphite-based flexible ground conductor can individually use horizontal laying mode in soil, or
Use the compound system of laying that above-mentioned horizontal laying combines with vertical laying, or, connect
Earthed conductor system of laying in soil can be in-line, snakelike, L-shaped, M shape,
Annular or radiation.
Please continue to refer to Fig. 1, further, in this utility model, described horizontal conductor
21 is multiple, and multiple described horizontal conductors 21 are sequentially connected with, and described earth lead 1 is with many
One of them of individual described horizontal conductor 21 connects.
Further, description based on the preceding paragraph, adjacent two described horizontal conductors 21
Junction connect have a described vertical conductor 22, multiple described vertical conductors 22
Horizontal direction along described horizontal conductor 21 is uniformly arranged.
Further, description based on the preceding paragraph, described earth lead 1 and described ground terminal
3 are connected by the fixture 4 that continues, and described earth lead 1 and described horizontal conductor 21 are by connecing
Continuous fixture 4 connects, and adjacent two described horizontal conductors 21 are connected by the fixture 4 that continues,
Described horizontal conductor 21 is connected by the fixture 4 that continues with described vertical conductor 22.
Specifically, difform continuing can be selected according to the concrete system of laying of earth conductor
Fixture, the fixture that continues can be yi word pattern, T-shaped, L-type or cross, and its material can be
Metal material or non-metallic material.
As the further improvement of technique scheme, flexible for improving this graphite-based further
The scope of application of grounding device so that it is be applicable to the soil that resistivity is higher, or sandstone soil
Deng in the most severe use environment, in use, make to be embedded in and connect described in the part of underground
Ground wire be provided around swelling agent, swelling agent i.e. friction reducer, it is soft that swelling agent is embedded in graphite-based
Around property earth lead, it is used for making graphite-based flexible ground line more fully bond with soil,
Effectively reduce the contact resistance of graphite-based flexible ground line and soil, and then reach to significantly reduce
The purpose of earth resistance.
Please continue to refer to Fig. 1, as the further improvement of technique scheme, for further
Improve the scope of application of this graphite-based flexible ground device so that it is be applicable to resistivity higher
In soil, or the most severe use environment such as sandstone soil, in use, make all to bury
Be located at underground described earth conductor 2 be provided around swelling agent 5, swelling agent is embedded in stone
Around ink base flexible ground conductor, it is used for making graphite-based flexible ground conductor with soil more
Bond fully, effectively reduce the contact resistance of graphite-based flexible ground conductor and soil, enter
And reach to significantly reduce the purpose of earth resistance.
Based on above-mentioned graphite-based flexible ground device, optional is being embedded in the ground connection of underground
Line be provided around swelling agent, or, optional only in the week of the earth lead being embedded in underground
Enclose and be provided with swelling agent, or, can be embedded in around the earth lead of underground, and bury underground
Surrounding in the earth lead of underground is simultaneously provided with swelling agent, specifically can carry out according to field of employment
Arrange.
Please continue to refer to Fig. 1, as the further improvement of technique scheme, it is preferable that
Being arranged with insulating protection sleeve pipe 6 on described earth lead 1, the upper end of this protection tube is beyond ground
Face, lower end locates below ground level, and intersects with ground and near ground to protect on earth lead
Region.
During it should be noted that railway and urban track traffic earth work are implemented, first,
The earth type, earth resistance requirement and local soil resistivity etc. according to different majors system
Data, determine the preliminary laying scheme of grounding device；Secondly, according to design manual ground connection electricity
Resistance computing formula carries out earth resistance calculating, preliminary according to result of calculation correction grounding device
Laying scheme is until meeting earth resistance requirement；Again, applying according to the grounding device determined
If scheme carries out grounding resistance measurement after constructing, as earth resistance meets requirement, ground connection
Engineering completes, as earth resistance is unsatisfactory for requirement, and can be according to grounding resistance measurement data correction
Grounding scheme, laying of supplementary horizontally or vertically graphite-based flexible ground conductor, until meeting
The requirement of earth resistance.The graphite-based flexible ground device that this utility model embodiment provides,
Also this program is followed when burying underground.
In description of the present utility model, it should be noted that unless otherwise clear and definite regulation
And restriction, term " is installed ", " being connected ", " connection " should be interpreted broadly, such as, and can
To be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can be machinery
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to by between intermediary
Connect connected, can be the connection of two element internals.For those of ordinary skill in the art
For, above-mentioned term concrete meaning in this utility model can be understood with concrete condition.
It is last it is noted that various embodiments above is only in order to illustrate technology of the present utility model
Scheme, is not intended to limit；Although this utility model being carried out with reference to foregoing embodiments
Detailed description, it will be understood by those within the art that: it still can be to aforementioned
Technical scheme described in each embodiment is modified, or to the most some or all of skill
Art feature carries out equivalent；And these amendments or replacement, do not make appropriate technical solution
Essence depart from this utility model each embodiment technical scheme scope.
Claims (9)
1. a graphite-based flexible ground device, it is characterized in that, including the earth lead being vertically arranged, the upper end of described earth lead connects has ground terminal, lower end connection to have earth conductor, described earth lead is made up through different wirings and form of presentation of soft graphite line, and described earth conductor is made up through different wirings and form of presentation of soft graphite line；
Described earth conductor includes horizontal conductor and vertical conductor, and the lower end of described earth lead connects described horizontal conductor, and described vertical conductor is connected on described horizontal conductor and is positioned at the lower section of described horizontal conductor.
Graphite-based flexible ground device the most according to claim 1, it is characterised in that described horizontal conductor is multiple, multiple described horizontal conductors are sequentially connected with, and described earth lead is connected with one of them of multiple described horizontal conductors；
The junction of adjacent two described horizontal conductors connects has a described vertical conductor, multiple described vertical conductors uniformly to arrange along the horizontal direction of described horizontal conductor.
Graphite-based flexible ground device the most according to claim 2, it is characterized in that, described earth lead is connected by the fixture that continues with described ground terminal, described earth lead is connected by the fixture that continues with described horizontal conductor, adjacent two described horizontal conductors are connected by the fixture that continues, and described horizontal conductor is connected by the fixture that continues with described vertical conductor.
Graphite-based flexible ground device the most according to claim 3, it is characterised in that during use, part be embedded in underground described earth lead be provided around swelling agent.
Graphite-based flexible ground device the most according to claim 4, it is characterised in that during use, be all embedded in underground described earth conductor be provided around swelling agent.
Graphite-based flexible ground device the most according to claim 5, it is characterised in that be arranged with insulating protection sleeve pipe on described earth lead.
Graphite-based flexible ground device the most according to claim 1, it is characterised in that described earth conductor embedding manner in soil is in-line, snakelike, L-shaped, M shape, annular or radiation.
Graphite-based flexible ground device the most according to claim 3, it is characterised in that described in the fixture that continues be yi word pattern, T-shaped, L-type or cross.
Graphite-based flexible ground device the most according to claim 8, it is characterised in that described in the fixture that continues be metal material or non-metallic material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620067865.4U CN205543272U (en) | 2016-01-22 | 2016-01-22 | Flexible earthing device of graphite -based |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620067865.4U CN205543272U (en) | 2016-01-22 | 2016-01-22 | Flexible earthing device of graphite -based |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340731A (en) * | 2016-10-26 | 2017-01-18 | 国网湖北省电力公司十堰供电公司 | Flexible graphite grounding downlead |
| CN108718010A (en) * | 2018-05-23 | 2018-10-30 | 陈乐昆 | A kind of earthed system |
| CN109616786A (en) * | 2018-12-14 | 2019-04-12 | 国网山东省电力公司济南供电公司 | A kind of transmission line of electricity surge water conservancy diversion earthing or grounding means |
| CN109935980A (en) * | 2019-05-06 | 2019-06-25 | 贵州电网有限责任公司 | A kind of low ground resistance earth device |
| CN111555051A (en) * | 2020-06-28 | 2020-08-18 | 河南四达电力设备股份有限公司 | Graphite-based grounding electrode for low-voltage power distribution, grounding device and construction method of grounding device |
-
2016
- 2016-01-22 CN CN201620067865.4U patent/CN205543272U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340731A (en) * | 2016-10-26 | 2017-01-18 | 国网湖北省电力公司十堰供电公司 | Flexible graphite grounding downlead |
| CN108718010A (en) * | 2018-05-23 | 2018-10-30 | 陈乐昆 | A kind of earthed system |
| CN109616786A (en) * | 2018-12-14 | 2019-04-12 | 国网山东省电力公司济南供电公司 | A kind of transmission line of electricity surge water conservancy diversion earthing or grounding means |
| CN109935980A (en) * | 2019-05-06 | 2019-06-25 | 贵州电网有限责任公司 | A kind of low ground resistance earth device |
| CN111555051A (en) * | 2020-06-28 | 2020-08-18 | 河南四达电力设备股份有限公司 | Graphite-based grounding electrode for low-voltage power distribution, grounding device and construction method of grounding device |
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Effective date of registration: 20211201 Address after: 225000 Guoji Industrial Concentration Zone, Zhiqiao Town, Gaoyou City, Yangzhou City, Jiangsu Province Patentee after: YANGZHOU YINGXIN ELECTRIC ENGINEERING Co.,Ltd. Patentee after: Sichuan kuanggu Information Engineering Co., Ltd Address before: 225000 Guoji Industrial Concentration Zone, Zhiqiao Town, Gaoyou City, Yangzhou City, Jiangsu Province Patentee before: YANGZHOU YINGXIN ELECTRIC ENGINEERING Co.,Ltd. |