CN205609768U - Compound protection ground connection downlead - Google Patents
Compound protection ground connection downlead Download PDFInfo
- Publication number
- CN205609768U CN205609768U CN201620415338.8U CN201620415338U CN205609768U CN 205609768 U CN205609768 U CN 205609768U CN 201620415338 U CN201620415338 U CN 201620415338U CN 205609768 U CN205609768 U CN 205609768U
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- copper
- anode material
- layers
- band steel
- down conductor
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Abstract
The utility model discloses a compound protection ground connection downlead, including the low carbon round steel, round copper layer is established to low carbon round steel surface cover, copper layer surface is provided with one or many anode material, anode material and copper layer integrated into one piece. The utility model provides a compound protection ground connection downlead has increased positive pole protective material when improving earth connection electric conductive property, form the anode passivation protective layer more easily on the earth connection to reach the life that increases the earth connection, save the cost, improve economic benefits's purpose.
Description
Technical field
This utility model relates to electrochemical anti-corrosive field, concretely relates to a kind of composite protective down conductor.
Background technology
The grounding device of China's electric power system is to ensure safe operation of power system and the critical facility of personal safety, and the non-corrodibility steady in a long-term of grounding device is the target of the grounding device pursuit of power system.The existing earthing material of China is mainly based on metallic ground material; such as mild steel, galvanized steel etc.; most area uses galvanizing steel at present, but its anticorrosion effect shows through long-term practice, along with the extent of corrosion reducing steel of zinc coat protected effect can accelerate.The conventional measure of Long-Term Protection can be provided, be cathodic protection impressed current, sacrificial anode or the two united protected mode.When selecting cathodic protection mode, the most do not consider impressed current method, because when there is earth fault, it is understood that there may be high-potential gracient.Therefore, selecting sacrificial anode is the most more common way for the corrosion protection of steel grounded screen.
Practice have shown that, often there are some the most serious corrosion locations in the metallic ground material such as buried steel grounded screen, transmission tower down conductor, and these positions generally enter ground part at material and locate to subsurface about 30 to 80cm.This position moisture in soil and oxygen are the most unobstructed, and during steel material is often in Drought-wet change, corrosive medium also causes this position heavy corrosion therewith repeatedly corroding steel material.It addition, the uneven place of some local soils, also easily cause steel material local spot corrosion serious, form etch pit or fracture etc..The etch pit of these local corrosions generation or fracture, and then have influence on the service life of whole buried steel grounding device.
Utility model content
The utility model proposes a kind of composite protective down conductor; anodic protection material is added while improving earth lead electric conductivity; it is easier on earth lead form anodic passivity protective layer, to reach to increase service life, cost-effective of earth lead, the purpose increased economic efficiency.
This utility model is achieved through the following technical solutions:
A kind of composite protective down conductor, including low-carbon (LC) round steel, the sheathed circle layers of copper in described low-carbon (LC) round steel surface, described layers of copper surface configuration has one or more anode material, and described anode material is one-body molded with layers of copper.
For in prior art, the anode material of grounding device uses the cold working mode such as anchor ear, embedding to make, the most easily come off and increase the contact resistance with conducting base, the problem increasing grounding resistance, the utility model proposes a kind of composite protective down conductor, wherein use low-carbon (LC) round steel as matrix, utilize the conduction speciality that metallic copper is excellent, improve the electric conductivity of earth lead, it is ensured that under matrix damage situations, also can have good conductive capability.The sheathed circle layers of copper in described low-carbon (LC) round steel surface, owing to low-carbon (LC) round steel is cylindrical shape, therefore being set in the layers of copper on its surface and be hollow cylindric, the layers of copper being set-located is big with low-carbon (LC) round steel contact area, connect, and low-carbon (LC) round steel is implemented parcel comprehensively.Even if being collided with by external force or rubbing, layers of copper also will not split away off from low-carbon (LC) round steel.Described layers of copper surface configuration has one or more integrated anode material; owing to layers of copper will not come off from low-carbon (LC) round steel; therefore anode material integrated with layers of copper does not comes off yet; so that it is guaranteed that be connected reliable between anode material with low-carbon (LC) round steel, it is to avoid the anode of downlead comes off the situation generation causing device cathode protecting function to lose efficacy.Additionally, due to downlead uses cathodic protection mode to protect conducting base, therefore after anode material is corroded, passivation protection layer can be formed, it is to avoid grounding device device corrosion and the problem that cannot be continuing with, cost-effective, increase economic efficiency.Owing to anode material protrudes on layers of copper surface, therefore increase the usage amount of anode material, it is easier on earth lead, form anodic passivity protective layer.
Further, described anode material is the straight line list structure along layers of copper axis direction.Anode material is set to the Straight Line and Arc list structure along layers of copper axis direction, it is easy to along the circumferentially disposed a plurality of anode material of copper, increase the volume of anode material, increase the anode material contact area with stratum, improve service life and the antiseptic property of downlead further.
Preferably, the cross section of described anode material is semicircle shape structure.The anode material using semicircle shape structure protrudes on layers of copper surface, is conducive to providing bigger surface area and anode material amount for anode material, increases the contact area of anode material and stratum, improves service life and the antiseptic property of downlead further.
Preferably, described anode material is made by any materials in zinc, magnesium, zinc magnesium alloy, platinum, niobium, platinum niobium alloy, aluminum zinc indium alloy.
Further, also including that copper facing stannum band steel, described copper facing stannum band steel are connected with described layers of copper, described copper facing stannum band steel includes band steel body, the copper plate in the setting of band steel body surface and the tin coating in copper plate surface configuration.Described copper facing stannum band steel be i.e. on the base material of low-carbon (LC) steel first copper facing the most tin plating obtained by electroplated steel products.Copper facing stannum band steel is connected with the layers of copper in above-mentioned a kind of composite protective down conductor, is the most also connected with anode material.The part that copper facing stannum band steel bassets as grounded screen, is partly embedded into underground by down conductor by bolt after being connected by protection device, can be grounded defencive function.
Preferably, described copper facing stannum band steel, layers of copper, anode material are the most one-body molded.Use integrated copper facing stannum band steel, layers of copper and anode material, it is possible to avoid copper conductive layer to come off completely, it is ensured that normal use of the present utility model.
Further, described copper facing stannum band steel is provided with one or more through hole.Described through hole, for connecting by protection device or equipment, uses through hole to be easy to being carried out bolt by protection equipment and connects fixing, it is ensured that by the firm and reliable connection of protection device or equipment to grounded screen.Meanwhile, also ensure that the later stage is easy to test, maintenance.
This utility model compared with prior art, has such advantages as and beneficial effect:
This utility model, by using layers of copper as electric conductor, utilizes the conductive capability that metallic copper is excellent, improves earth lead conductive capability, it is ensured that matrix also can have good electric conductivity under damage situations；A sheathed circle layers of copper on low-carbon (LC) round steel surface; layers of copper surface configuration has one or more integrated anode material; owing to layers of copper will not come off from round steel; therefore anode material integrated with layers of copper does not comes off yet; so that it is guaranteed that combine reliable between anode and low-carbon (LC) round steel; the situation avoiding downlead to be corroded and to cause device cathode protecting function to lose efficacy occurs, cost-effective, increases economic efficiency.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by this utility model embodiment, constitutes the part of the application, is not intended that the restriction to this utility model embodiment.In the accompanying drawings:
Fig. 1 is the radial cross-section of downlead in one specific embodiment of this utility model；
Fig. 2 is the radial cross-section of downlead in another specific embodiment of this utility model；
Fig. 3 is the structural representation of earth lead in one specific embodiment of this utility model.
Wherein: 1-low-carbon (LC) round steel, 2-layers of copper, 3-anode material, 4-copper facing stannum band steel, 5-through hole.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only used for explaining this utility model, are not intended as restriction of the present utility model.
Embodiment 1:
A kind of composite protective down conductor as shown in Figure 1, including low-carbon (LC) round steel 1, the sheathed circle layers of copper 2 in described low-carbon (LC) round steel 1 surface, described layers of copper 2 surface configuration has one or more anode material 3, and described anode material 3 is one-body molded with layers of copper 2；Described anode material 3 is the straight line list structure along layers of copper 2 axis direction；The cross section of described anode material 3 is semicircle shape structure.This utility model uses layers of copper 2 as electric conductor, utilizes the conductive capability that metallic copper is excellent, improves earth lead conduction through-current capability, it is ensured that matrix also can have good electric conductivity under damage situations.The sheathed circle layers of copper 2 in described low-carbon (LC) round steel 1 surface, owing to low-carbon (LC) round steel 1 be solid cylinder shape, is therefore set in the layers of copper 2 on its surface also for cylindric, the layers of copper 2 being set-located and low-carbon (LC) round steel 1 contact area greatly, connect, contact resistance is low.Even if being collided with by external force or rubbing, layers of copper 2 also will not split away off from low-carbon (LC) round steel 1.Described layers of copper 2 surface configuration has an integrated anode material 3; owing to layers of copper 2 will not come off from low-carbon (LC) round steel 1; therefore anode material 3 integrated with layers of copper 2 does not comes off yet; so that it is guaranteed that combine reliable between anode material 3 and low-carbon (LC) round steel 1, it is to avoid the situation that downlead is corroded and causes device cathode protecting function to lose efficacy occurs.Additionally, due to downlead uses cathodic protection mode to protect conducting base, therefore after anode material 3 is corroded or damages; it also is able to be continuing with this utility model; avoid anode material 3 and damage the problem causing whole device to be continuing with, cost-effective, increase economic efficiency.
Embodiment 2:
A kind of composite protective down conductor as shown in Figure 2, on the basis of embodiment 1, described layers of copper 2 surface configuration has two integrated anode materials 3, and described anode material 3 is zinc magnesium alloy.Anode material 3 is set to the straight line list structure along low-carbon (LC) round steel 1 axis direction; it is easy to along circumferentially disposed two the symmetrical anode materials 3 of low-carbon (LC) round steel 3; increase volume and consumption, increase anode material 3 and the contact area greatly of anode material 3; improve antiseptic property and the service life of earth lead further, expand the protection domain of sacrificial anode simultaneously.
Embodiment 3:
A kind of composite protective down conductor as shown in Figure 3, on the basis of any of the above-described embodiment, also includes that copper facing stannum band steel 4, described copper facing stannum band steel 4 are connected with described layers of copper 2；Described copper facing stannum band steel 4 includes band steel body, the copper plate in the setting of band steel body surface and the tin coating in copper plate surface configuration.Described copper facing stannum band steel 4, layers of copper 2, anode material 3 are the most one-body molded；It is provided with two through holes 5 on described copper facing stannum band steel 4.The part that copper facing stannum band steel 4 bassets as earth lead, will be introduced underground by protection equipment by downlead, can be grounded function.Described through hole 5, for connecting by protection equipment or device, uses through hole 5 to be easy to bolt and is fixed, it is ensured that the wire being connected to earth lead is solid and reliable.
Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only detailed description of the invention of the present utility model; it is not used to limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. done, within should be included in protection domain of the present utility model.
Claims (7)
1. a composite protective down conductor, it is characterized in that: include low-carbon (LC) round steel (1), sheathed circle layers of copper (2) in described low-carbon (LC) round steel (1) surface, described layers of copper (2) surface configuration has one or more anode material (3), and described anode material (3) is one-body molded with layers of copper (2).
A kind of composite protective down conductor the most according to claim 1, it is characterised in that: described anode material (3) is the straight line list structure along layers of copper (2) axis direction.
A kind of composite protective down conductor the most according to claim 1 and 2, it is characterised in that: the cross section of described anode material (3) is semicircle shape structure.
A kind of composite protective down conductor the most according to claim 3, it is characterised in that: described anode material (3) is made by any materials in zinc, magnesium, zinc magnesium alloy, platinum, niobium, platinum niobium alloy, aluminum zinc indium alloy.
A kind of composite protective down conductor the most according to claim 4, it is characterized in that: also include copper facing stannum band steel (4), described copper facing stannum band steel (4) is connected with described layers of copper (2), and described copper facing stannum band steel (4) includes band steel body, the copper plate in the setting of band steel body surface and the tin coating in copper plate surface configuration.
A kind of composite protective down conductor the most according to claim 5, it is characterised in that: described copper facing stannum band steel (4), layers of copper (2), anode material (3) are the most one-body molded.
A kind of composite protective down conductor the most according to claim 6, it is characterised in that: it is provided with one or more through hole (5) on described copper facing stannum band steel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620415338.8U CN205609768U (en) | 2016-05-10 | 2016-05-10 | Compound protection ground connection downlead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620415338.8U CN205609768U (en) | 2016-05-10 | 2016-05-10 | Compound protection ground connection downlead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205609768U true CN205609768U (en) | 2016-09-28 |
Family
ID=56965829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620415338.8U Expired - Fee Related CN205609768U (en) | 2016-05-10 | 2016-05-10 | Compound protection ground connection downlead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205609768U (en) |
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2016
- 2016-05-10 CN CN201620415338.8U patent/CN205609768U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20210510 |