CN205583166U - Improve ground net and prevent corrosive effects's device - Google Patents
Improve ground net and prevent corrosive effects's device Download PDFInfo
- Publication number
- CN205583166U CN205583166U CN201620295256.4U CN201620295256U CN205583166U CN 205583166 U CN205583166 U CN 205583166U CN 201620295256 U CN201620295256 U CN 201620295256U CN 205583166 U CN205583166 U CN 205583166U
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- grounding body
- grounding
- bolt
- nut
- ground net
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Abstract
The utility model provides an improve ground net and prevent corrosive effects's device, the device includes through first grounding body, the second grounding body of bolt, nut connection, the equal deposit in surface of first grounding body, second grounding body, bolt, nut has ni -based titanium nitride metal ceramic layer. Metal ceramic layer thickness is more than 20 mu m. The connection overlap section length of first grounding body, second grounding body is 60mm~100mm. First grounding body, second grounding body are zinc -plated band steel. The material of cermet coating is ni -based titanium nitride. The utility model relates to an improve ground net anti -corrosion device, through the method that adopts vapour deposition, increase ceramet material anticorrosion coating on earthing conductor junction and bolt and nut's surface to with screw bolt and nut connection ground net zinc -plating band steel, thereby improve the non -corrosibility ability and the running life of substation grounding grid, overhead line grounding body.
Description
Technical field
This utility model belongs to electrical grounding net field, particularly to a kind of device improving grounding network anti-corrosion effect.
Background technology
Grounding device is a part indispensable in power system, and its effect is fault current to be introduced underground and provides reference potential for station equipment.Good earth work quality is electrical equipment and the guarantee of operation power personnel's personal safety.And from the point of view of according to reasons such as China's national situation and various resources reserve, technical system, price and service conditions, hot-galvanized steel or the first-selection of earthing material, the most still account for the share in earthing material market more than 90%.The connection of earthing material the most typically uses following several ways: bolt connection, arc welding, exothermic welding, soldering, gas shielded weldering etc..Wherein galvanized steel material commonly used stick electrode arc welding is attached.
In existing grounding body method of attachment, it is common to use welding method, but solder technology common defects is many, require height.
1), current, galvanized steel material commonly used stick electrode arc welding is attached, and the heat affected area that the high temperature of arc welding causes welding position is big, and joint mother metal tissue is thick, this results in joint and connects resistance relatively greatly, and joint easily corrodes under the effect of sour corrosion environment and earth current.Therefore the integrity problem of its joint is increasingly serious, as arranged State Grid Corporation of China 18 is counter, it is desirable to periodically (time interval should be not more than 5 years) determined the corrosion condition of grounded screen by means such as excavation selective examination.And in digging process, necessarily lead to substantial amounts of direct construction cost and indirect loss that interruption of power supply causes.
2), welding must assure that its integrity, it is impossible to has fracture, and therefore welding needs professional and technical personnel to operate, and welding quality depends on the proficiency level of operating technology work.Even if holding the personnel of special work post job qualification certificate, because of cannot be whether qualified from surface observation, it is impossible to ensure whether be surface soldered, and internal not fusion, once joint is the finest and close, is easy for weld defect occur.
3) if soldering is attached, then intensity and the thermostability of brazed seam are all low than base metals, not enough in order to make up intensity, solve problem frequently with increasing overlap joint area, thus soldered fitting more uses lap joint to make the weight of structure increase, and consumptive material is more.
4), solder technology needs specific instrument and equipment and environment, the most portable and transfer, and welds and can produce high temperature and high light, thus knows from experience people and cause potential danger or injury.
Summary of the invention
For solving above-mentioned technical problem, this utility model provides a kind of device improving grounding network anti-corrosion effect, by the method using vapour deposition, cermet material erosion shield is increased on the surface of earth conductor junction and bolt and nut, and connect grounded screen zinc-coated flat steel sheet with screw bolt and nut, thus improve grounding net of transformer substation, the antiseptic property of overhead transmission line grounding body and service life.This utility model can simplify grounding body connection procedure, remove loaded down with trivial details welding step, it is to avoid the danger produced therewith, it is not necessary to the technical operation of specialty, ensure that preferable antiseptic effect simultaneously.
This utility model be the technical scheme is that
A kind of device improving grounding network anti-corrosion effect, this device includes that described first grounding body, the second grounding body, bolt, the surface of nut have all deposited cermet coating by bolt, the first grounding body of nut connection, the second grounding body.
Described ceramic metal layer thickness is more than 20 μm.
Described first grounding body, the connection length of overlapped part of the second grounding body are 60 ~ 100mm.
Described first grounding body, the second grounding body are zinc-coated flat steel sheet.
Described bolt, nut specification are M12*30.
Described cermet coating is Ni-based titanium-nitride cermet coating.
A kind of device improving grounding network anti-corrosion effect of this utility model, technique effect is as follows:
1), cermet coating be Ni-based titanium-nitride cermet coating, improve etch-proof effect；Inherently have excellent corrosion resistance and electric conductivity due to cermet material, earth conductor is not subject to mechanical load in running.Therefore the hardness requirement of its junction face coat can be ignored substantially, and the resistivity (2.2 × 10 of metal-cermic coating-7Ω m) electrical performance requirements of grounding device can be met.
2), ceramic metal layer thickness more than 20 μm, the increase of coating can't additionally increase the power frequency earthing resistance of grounding device, and the most ceramic-metallic raw material and processing cost also ratio thereof are less expensive.
3), the first grounding body, the second grounding body are zinc-coated flat steel sheet, the rectangular length and width in its cross section is generally in the range of 30mm ~ 60mm, 3mm ~ 6mm, and the zinc-coated flat steel sheet of above-mentioned size is the metallic ground material being most widely used of current grounding net of transformer substation, tower grounding body.
4), the connection length of overlapped part of the first grounding body, the second grounding body be 60mm ~ 100mm, this length is to ensure that between grounding body have good electrical connection, and contact resistance is negligible.
5), loaded down with trivial details welding process is eliminated, it is not necessary to technical professional operates, it is not necessary to carry special instrument instrument, in unlimited time place, joint is not easy to corrosion, will not produce any risk factor, it is only necessary to zinc-coated flat steel sheet junction is fixed by specific bolt.The present invention is significantly reduced the time needed for grounding body connects and cost, also ensure that preferable anticorrosion ability simultaneously.
Accompanying drawing explanation
Fig. 1 is this utility model embodiment 1 structural representation.
Fig. 2 is this utility model embodiment 2 structural representation.
Fig. 3 is this utility model embodiment 3 structural representation.
Detailed description of the invention
A kind of device improving grounding network anti-corrosion effect, this device includes first grounding body the 1, second grounding body 2 connected by bolt 3, nut 4, and described first grounding body the 1, second grounding body 2, bolt 3, the surface of nut 4 are equipped with cermet coating 5.
Described cermet coating 5 thickness is more than 20 μm.
The connection length of overlapped part of described first grounding body the 1, second grounding body 2 is 60 mm ~ 100mm.
Described first grounding body the 1, second grounding body 2 is Q235 zinc-coated flat steel sheet.
Described bolt 3, nut 4 specification are M12*30.
Described cermet coating 5 is the TiN metal-cermic coating using vapour deposition process spraying.
Specific embodiments:
Two bolts hole are manufactured needing first grounding body the 1, second grounding body 2 two ends connected, and the surface of junction, bolt 3, nut 4 is deposited Ni-based titanium-nitride cermet material coating, finally form entirety with the headtotail of bolt 3,4 two pieces first grounding body the 1, second grounding bodies 2 of nut.
Embodiment 1:
As it is shown in figure 1, a kind of device improving grounding network anti-corrosion effect, including first grounding body the 1, second grounding body 2 connected by bolt 3, nut 4, described first grounding body the 1, second grounding body 2, bolt 3, the surface of nut 4 are equipped with cermet coating 5.Wherein grounding body connects length of overlapped part is 60mm, constitutes one group for connecting 3, nut 4 of a bolt of grounding body, and first grounding body the 1, second grounding body 2 level connection joint is fixed by two groups of horizontally disposed bolt and nut groups.
Embodiment 2:
As in figure 2 it is shown, a kind of device improving grounding network anti-corrosion effect, including first grounding body the 1, second grounding body 2 connected by bolt 3, nut 4, described first grounding body the 1, second grounding body 2, bolt 3, the surface of nut 4 are equipped with cermet coating 5.Wherein grounding body connects length of overlapped part is 80mm, constitutes one group for connecting 3, nut 4 of a bolt of grounding body, and first grounding body the 1, second grounding body 2 level connection joint is fixed by upper and lower two groups of horizontally disposed bolt and nut groups.
Embodiment 3:
As it is shown on figure 3, a kind of device improving grounding network anti-corrosion effect, including first grounding body the 1, second grounding body 2 connected by bolt 3, nut 4, described first grounding body the 1, second grounding body 2, bolt 3, the surface of nut 4 are equipped with cermet coating 5.Wherein grounding body connects length of overlapped part is 100mm, constitutes one group for connecting 3, nut 4 of a bolt of grounding body, and first grounding body the 1, second grounding body 2 level connection joint is fixed by upper and lower three groups of horizontally disposed bolt and nut groups.
Claims (6)
1. the device improving grounding network anti-corrosion effect, it is characterized in that, this device includes the first grounding body (1), the second grounding body (2) connected by bolt (3), nut (4), and described first grounding body (1), the second grounding body (2), bolt (3), the surface of nut (4) are equipped with cermet coating (5).
A kind of device improving grounding network anti-corrosion effect, it is characterised in that described cermet coating (5) thickness is more than 20 μm.
A kind of device improving grounding network anti-corrosion effect, it is characterised in that described first grounding body (1), the connection length of overlapped part of the second grounding body (2) are 60mm ~ 100mm.
4. according to the device improving grounding network anti-corrosion effect a kind of described in claim 1 or 3, it is characterised in that described first grounding body (1), the second grounding body (2) are zinc-coated flat steel sheet.
A kind of device improving grounding network anti-corrosion effect, it is characterised in that described bolt (3), nut (4) specification are M12*30.
A kind of device improving grounding network anti-corrosion effect the most according to claim 1 or claim 2, it is characterised in that described cermet coating (5) is Ni-based titanium-nitride cermet layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620295256.4U CN205583166U (en) | 2016-04-11 | 2016-04-11 | Improve ground net and prevent corrosive effects's device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620295256.4U CN205583166U (en) | 2016-04-11 | 2016-04-11 | Improve ground net and prevent corrosive effects's device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205583166U true CN205583166U (en) | 2016-09-14 |
Family
ID=56865388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620295256.4U Expired - Fee Related CN205583166U (en) | 2016-04-11 | 2016-04-11 | Improve ground net and prevent corrosive effects's device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205583166U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532280A (en) * | 2016-12-20 | 2017-03-22 | 河南省水利勘测设计研究有限公司 | Connection method for machine voltage rectangular bus of power generator in hydroelectric station |
| CN113346260A (en) * | 2021-04-23 | 2021-09-03 | 国网浙江省电力有限公司湖州供电公司 | Broken grounding body repairing structure and repairing method |
-
2016
- 2016-04-11 CN CN201620295256.4U patent/CN205583166U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532280A (en) * | 2016-12-20 | 2017-03-22 | 河南省水利勘测设计研究有限公司 | Connection method for machine voltage rectangular bus of power generator in hydroelectric station |
| CN106532280B (en) * | 2016-12-20 | 2019-10-01 | 河南省水利勘测设计研究有限公司 | Hydropower generator machine presses rectangular bus bar connection method |
| CN113346260A (en) * | 2021-04-23 | 2021-09-03 | 国网浙江省电力有限公司湖州供电公司 | Broken grounding body repairing structure and repairing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171215 Address after: 443005 development avenue, Yichang section, Yichang, Yichang, Hubei Province, China (Hubei) Patentee after: HUBEI JIYANG ELECTRIC POWER TECHNOLOGY CO.,LTD. Address before: No. 13, Lantai Road, Yichang high tech Zone, Hubei Province Patentee before: HUBEI NANBANG CHUANGDIAN TECHNOLOGY CO.,LTD. |
|
| 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: 20160914 |