CN105789928B - A kind of electric power grounding grid - Google Patents
A kind of electric power grounding grid Download PDFInfo
- Publication number
- CN105789928B CN105789928B CN201610352985.3A CN201610352985A CN105789928B CN 105789928 B CN105789928 B CN 105789928B CN 201610352985 A CN201610352985 A CN 201610352985A CN 105789928 B CN105789928 B CN 105789928B
- Authority
- CN
- China
- Prior art keywords
- straight pipe
- outer rim
- helical fin
- electric power
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
Abstract
The present invention relates to the present invention relates to power equipment grounding technology field more particularly to a kind of electric power grounding grids.It includes the outer rim of closing and the equal pressure zone in the outer rim, it is characterized in that, the equal pressure zone includes straight pipe and the helical fin on the straight pipe, by steel band, the helically coiling on the outer wall of the straight pipe is welded the helical fin, concave-convex gauffer is additionally provided on the helical fin, the surrounding of the outer rim is in circular sliding slopes, and the outer rim is equipped with ground lead tie point.The straight pipe is seamless steel pipe or copper tube, and a diameter of 10~40 millimeters of the seamless steel pipe or copper tube, the width of the steel band is 10~50 millimeters.Advantage is：Under the premise of straight pipe equal length, same inner diameter, contact surface area is the several times of common seamless steel pipe, substantially increases earthing effect.
Description
Technical field
The present invention relates to power equipment grounding technology field more particularly to a kind of electric power grounding grids.
Background technology
《Power equipment grounding technology regulation》Regulation, " power plant, electric substation's power equipment earthing or grounding means, except using from
Outside right grounding body, no matter using which kind of artificial earth electrode, such as well formula ground connection, deep drilling formula ground connection, Down conductor, should all lay with
Manual earth network based on horizontal grounding objects ".In power wiring systems, the ground connection performance quality of lightning protection electrode and reliable
Property, directly affect electrical equipment, normal effective operation of line facility.Grounding technology is to the safe and stable operation of electric system
There is important influence, and the implementation of the expansion of generator capacity, EHV transmission and D.C. high voltage transmission causes system voltage
Level improves, and earth current constantly increases, these all to grounded screen it is safe and reliable, economical, effectively etc. propose higher
Requirement.Touch voltage and step voltage direct relation arrives at a station the safety of interior personnel and equipment, therefore, how to reduce grounded screen electricity
Resistance, is unanimously researcher's focus of attention so as to reduce touch voltage and step voltage.Existing grounding body is mostly using common
Round steel or angle steel, which are made or have, selects screw-thread steel, but the earthed surface product of grounding body is still smaller, influences impedance ground and effect
Fruit.
Invention content
The present invention in view of the above shortcomings of the prior art, provides a kind of electric power grounding grid that can effectively reduce ground resistance.
The technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of electric power grounding grid, the outer rim including closing
And the equal pressure zone in the outer rim, which is characterized in that the equal pressure zone includes straight pipe and on the straight pipe
Helical fin, by steel band, the helically coiling on the outer wall of the straight pipe is welded the helical fin, the spiral wing
On piece is additionally provided with concave-convex gauffer, and for the surrounding of the outer rim in circular sliding slopes, the outer rim is equipped with ground lead tie point.
The beneficial effects of the invention are as follows：Due to being equipped with helical fin on straight pipe, it is additionally provided on the helical fin recessed
Convex gauffer, under the premise of straight pipe equal length, same inner diameter, contact surface area is the several times of common seamless steel pipe, significantly
Improve earthing effect.Especially consider the Kelvin effect of circuit, increase the contact area of earthing pole and soil with regard to meaningful.
By taking a diameter of 20 millimeters, the steel pipe that length is one meter as an example, if used as earthing pole or equal pressure zone, with soil
The contact area of earth is about 628 square centimeters；And the scheme that helical fin is set on the straight pipe is used, such as helical wing plate
Width for 15 millimeters, coiling spacing uses 20 millimeters, then approximation increases 1800 square centimeters of contact area and (considers steel here
With two sides), and if it is considered that the gauffer of steel band then area can bigger, can undoubtedly substantially reduce ground resistance, to improve be grounded
Net it is safe and reliable, economical, effectively etc. performance have very significant meaning.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the straight pipe is seamless steel pipe or copper tube, the seamless steel pipe or copper tube a diameter of 10~
40 millimeters, the width of the steel band is 10~50 millimeters, and the outer rim is band steel.
Further, the thickness of steel band is 0.2~1 millimeter.
Advantageous effect using above-mentioned further scheme is, can be according to different grounding requirement reasonable materials, materials side
Just, it is easy to make.
Further, the seamless steel pipe and helical fin have zinc coat.
Advantageous effect using above-mentioned further scheme is, aluminizes after making processing in helical fin, it is ensured that
Whole corrosion resistance.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structure partial enlarged drawing of the present invention pressure zone；
Fig. 3 is the A-A of Fig. 2 to schematic cross-sectional view.
In Fig. 1 to Fig. 3,1, outer rim；2nd, straight pipe；3rd, helical fin；4th, ground lead tie point；5th, concave-convex wrinkle
Pleat.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in Figures 1 to 3, a kind of electric power grounding grid, outer rim 1 including closing and equal in the outer rim 1
Pressure zone, the equal pressure zone include straight pipe 2 and the helical fin 3 on the straight pipe 2, and the helical fin 3 is by steel band
Helically coiling is welded on the outer wall of the straight pipe 2, and concave-convex gauffer 5, the outside are additionally provided on the helical fin 3
The surrounding of frame 1 is in circular sliding slopes, and the outer rim 1 is equipped with ground lead tie point 4.In the specific implementation, estimation design needs
Will, the multiple equal pressure zones of parallel arrangement in the outer rim 1.The equal pressure zone both ends, that is, straight pipe 2 it is solderable
In the outer rim 1.
The straight pipe 2 is seamless steel pipe or copper tube, a diameter of 10~40 millimeters of the seamless steel pipe or copper tube,
The width of the steel band is 10~50 millimeters.The outer rim 1 is band steel.
The thickness of steel band is 0.2~1 millimeter.
The seamless steel pipe and helical fin 3 have zinc coat.
The equal pressure zone making step of the present invention is as follows：By taking above-mentioned preferred material as an example, using the ungalvanized of diameter 38mm
Seamless steel pipe；Select the steel band of thickness 0.2mm, width 30mm, and the gauffer steel band formed after being suppressed by mould；By pressed wrinkle
Pleat steel band around the home and is welded in seamless steel pipe outer surface, and set ground lead with spacing 40mm spirals, tube head and cone in welding
Forming head.The mode of whole outer surface pickling, galvanizing is taken again, and one is formd in fin outer surface and outer surface of steel tube
Complete zinc coat.
The electric power grounding grid of the present invention is relatively more suitable for disposably burying, and ensure Soil Surrounding or bentonite in construction
Abundant compacting.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of electric power grounding grid, the outer rim including closing and the equal pressure zone in the outer rim, which is characterized in that institute
It states equal pressure zone and includes straight pipe and the helical fin on the straight pipe, the helical fin is by steel band in the straight pipe
Outer wall on helically coiling be welded, be additionally provided with concave-convex gauffer on the helical fin, the surrounding of the outer rim is in circular arc
Connection, the outer rim are equipped with ground lead tie point.
2. electric power grounding grid according to claim 1, which is characterized in that the straight pipe be seamless steel pipe or copper tube,
A diameter of 10~40 millimeters of the seamless steel pipe or copper tube, the width of the steel band is 10~50 millimeters.
3. electric power grounding grid according to claim 2, which is characterized in that the thickness of steel band is 0.2~1 millimeter.
4. electric power grounding grid according to claim 2, which is characterized in that the seamless steel pipe and helical fin have zinc-plated
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352985.3A CN105789928B (en) | 2016-05-24 | 2016-05-24 | A kind of electric power grounding grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352985.3A CN105789928B (en) | 2016-05-24 | 2016-05-24 | A kind of electric power grounding grid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105789928A CN105789928A (en) | 2016-07-20 |
| CN105789928B true CN105789928B (en) | 2018-06-19 |
Family
ID=56380445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610352985.3A Expired - Fee Related CN105789928B (en) | 2016-05-24 | 2016-05-24 | A kind of electric power grounding grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105789928B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468748B (en) * | 2016-09-22 | 2019-01-18 | 国网山东省电力公司经济技术研究院 | A kind of method for equalizing voltage of substation's main grounding grid |
| CN107876579A (en) * | 2017-12-06 | 2018-04-06 | 江阴戴勒姆动力设备有限公司 | One kind is around piece ratio-frequency welding feed arrangement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996005631A1 (en) * | 1994-08-16 | 1996-02-22 | Hokuriku Electricpower Company | Earth electrode |
| CN201533025U (en) * | 2009-10-16 | 2010-07-21 | 周明 | Electric power grounding grid |
| CN202258594U (en) * | 2011-09-20 | 2012-05-30 | 深圳市华力特电气股份有限公司 | Neutral point ground resistor and related components |
| CN102593618A (en) * | 2011-12-03 | 2012-07-18 | 李景禄 | Grounding method for decreasing step voltage of transmission line tower |
| CN204577628U (en) * | 2015-05-27 | 2015-08-19 | 哈尔滨世纪祥云建筑工程有限公司 | Be applicable to the low resistance slip casting mozzle of poor soil many stone high soil resistivity area |
| CN205985379U (en) * | 2016-05-24 | 2017-02-22 | 国网山东省电力公司海阳市供电公司 | Electric power grounding grid |
-
2016
- 2016-05-24 CN CN201610352985.3A patent/CN105789928B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996005631A1 (en) * | 1994-08-16 | 1996-02-22 | Hokuriku Electricpower Company | Earth electrode |
| CN201533025U (en) * | 2009-10-16 | 2010-07-21 | 周明 | Electric power grounding grid |
| CN202258594U (en) * | 2011-09-20 | 2012-05-30 | 深圳市华力特电气股份有限公司 | Neutral point ground resistor and related components |
| CN102593618A (en) * | 2011-12-03 | 2012-07-18 | 李景禄 | Grounding method for decreasing step voltage of transmission line tower |
| CN204577628U (en) * | 2015-05-27 | 2015-08-19 | 哈尔滨世纪祥云建筑工程有限公司 | Be applicable to the low resistance slip casting mozzle of poor soil many stone high soil resistivity area |
| CN205985379U (en) * | 2016-05-24 | 2017-02-22 | 国网山东省电力公司海阳市供电公司 | Electric power grounding grid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105789928A (en) | 2016-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202042293U (en) | Insulator capable of improving external insulating strength and monitoring on line | |
| CN205543271U (en) | Novel three -dimensional earth mat | |
| CN102983420A (en) | Grounding device for reducing shock ground impedance of electric transmission line tower | |
| CN105789928B (en) | A kind of electric power grounding grid | |
| CN202308338U (en) | Double-layer structure grounding grid with characteristics of effectively improving electric potential distribution and reducing step voltage | |
| CN202258582U (en) | Extra-high voltage direct-current field post insulator piezometer ring device | |
| CN205985379U (en) | Electric power grounding grid | |
| CN203325630U (en) | Dry-type air-core reactor for magnetic shielding | |
| CN109243728B (en) | Direct current gas insulated metal enclosed transmission line insulator | |
| CN104113974B (en) | One prevents house owed by a citizen near ultra-high-tension power transmission line from producing faradic device | |
| CN106169321A (en) | A kind of Full-shielding composite insulating tubular bus | |
| CN102005272A (en) | Equalizing ring provided with internal insulation structure | |
| CN206180144U (en) | 4+1 is wave absorption formula earthing device suddenly | |
| CN206116044U (en) | Insulating tubular generating line of full shielding composite | |
| CN205429193U (en) | Compound lightning ground connection | |
| CN206098764U (en) | Mounting structure of ground net and ground net | |
| CN206349177U (en) | It is a kind of can ice-melt built on stilts lightning protection two-conductor Ground wire with insulation ocver | |
| CN206432063U (en) | A kind of low temperature resistant stretch-proof charging pile cable | |
| CN201160015Y (en) | Cross-linked polyethylene insulated puckering metal sleeve power cable with rated voltage of 110kV | |
| CN204257253U (en) | Novel building lightning protection cable | |
| CN205488606U (en) | Overcome earthing cable of SVC high -intensity magnetic field to influence of secondary cable | |
| CN203350494U (en) | Terminal junction box device used for 500kV optical fiber composition phase conductor | |
| CN204680453U (en) | A kind of wisdom energy high frequency midium voltage cable | |
| CN203300309U (en) | Power cable used for electric power transmission and distribution system | |
| CN209497005U (en) | A kind of table leg formula grounded screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tu Zhihui Inventor before: Xu Zhiqiang Inventor before: Diao Shaojie Inventor before: Wang Dong |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180515 Address after: 528311 No. 2 Xinye two, Beijiao Town, Shunde District, Foshan, Guangdong. Applicant after: Guangdong Shenghui Electric Power Engineering Co., Ltd. Address before: 264000 Longshan street, Haiyang City, Yantai, Shandong Province, No. 52 Applicant before: STATE GRID SHANDONG ELECTRIC POWER COMPANY HAIYANG POWER SUPPLY COMPANY |
|
| GR01 | Patent grant | ||
| 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: 20180619 Termination date: 20190524 |