CN202275960U - Antiseptic resistance-reducing foaming grounding module - Google Patents
Antiseptic resistance-reducing foaming grounding module Download PDFInfo
- Publication number
- CN202275960U CN202275960U CN2011204091497U CN201120409149U CN202275960U CN 202275960 U CN202275960 U CN 202275960U CN 2011204091497 U CN2011204091497 U CN 2011204091497U CN 201120409149 U CN201120409149 U CN 201120409149U CN 202275960 U CN202275960 U CN 202275960U
- Authority
- CN
- China
- Prior art keywords
- anticorrosive coat
- foaming
- module
- resistance
- antiseptic
- 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
Images
Landscapes
- Prevention Of Electric Corrosion (AREA)
Abstract
The utility model discloses an antiseptic resistance-reducing foaming grounding module and relates to an electric power grounding device. The antiseptic resistance-reducing foaming grounding module comprises an electrode core (1) and an antiseptic layer (2) wrapped outside the electrode core (1), wherein the electrode core (1) is a metal stranded wire, a tubular metal conductor or a banding metal conductor; and the antiseptic layer (2) is made of conducting foaming high polymer material. The antiseptic resistance-reducing foaming grounding module has a larger contact area with ground, smaller resistivity, and long service lifetime; facilitates construction; saves energy and is beneficial to environmental protection; and is suitable for grounding devices for installing lightning rods, arresters or lightning protection nets to electric power, communication, railway, broadcasting, petrifaction, and other systems and buildings such as intellectual buildings and ammunition depositories.
Description
Technical field
The utility model relates to a kind of electric power electric earthing device, relates in particular to a kind of foaming corrosion-preventing and resistance-reducing grounding module; Specifically, relate to and a kind ofly be used for lightning rod or electric power facility, communication apparatus is ground wire grounded and self has the earthing module of good Corrosion Protection.
Background technology
In order to work and security needs; On buildings such as system such as electric power, communication, railway, broadcasting and TV, petrochemical industry and intelligent building, ammunition depot, need to settle lightning rod, lightning arrester and lightning conduction; With the moment of thunder and lightning powerful electric current introduce the earth through grounding system; To protect the safety of various facilities, so the quality of earth electrode just is related to the effect of lightning protection.
The used material of earth electrode mainly contains copper and steel.Because copper alloy has decay resistance preferably, is comparatively desirable earthing material; But can accumulate after copper is corroded in water resources soil, copper belongs to little malicious heavy metal, and the content to copper in the water resources soil all has strict control both at home and abroad; And China lacks the copper resource, a large amount of copper earth electrodes is imbedded underground meeting cause the wasting of resources; Also have, the electrolytic potential of copper is higher, can produce chemical corrosion near steel structure, and therefore, the copper earth electrode is not widely used in China.The iron and steel earth electrode is because cheap, and use extensively; But in China owing to the iron and steel earth electrode is ruptured by macro-corrosion, thereby cause a large amount of accidents; Now, in order to prolong the useful life of large-scale earth mats such as transformer station, have no alternative but drop into a large amount of funds and carry out cathodic protection.
In order to solve the technological deficiency that at present above-mentioned two kinds of earth electrodes exist; Receiving electrode self must have corrosion resistance preferably; And can satisfy the basic demand of direct current, power frequency earthing and lightning protection ground connection, can carry bigger fault current and lightning current, and these electric currents are imported the earth.
Summary of the invention
The purpose of the utility model just is to overcome the shortcoming and defect that prior art exists, and a kind of foaming corrosion-preventing and resistance-reducing grounding module is provided.
The purpose of the utility model is achieved in that
When organic substance is too much in the soil, form metal body surface easily by the phenomenon of printing ink parcel, cause conductivity and cascading water ability to weaken, reduced the diffusing flow area of earth electrode itself, increased the contact resistance between earth electrode and the soil.The utility model efficiently solves the poor and easy generation metal body surface corrosion of metal earth electrode affinity in acidity or basic soil and makes earth resistance become a big difficult problem; Has strong moisture-absorbing moisture-keeping ability; Near soil resistivity reduces around making it, and dielectric constant increases, and the interlayer contact resistance reduces; Corrosion resistance strengthens, thereby can obtain less earth resistance and long useful life.
Specifically:
One, foaming corrosion-preventing and resistance-reducing grounding module (abbreviation module)
This module is made up of the electrode cores anticorrosive coat outside with being coated on electrode cores;
Described electrode cores is metallic cable, tubular metal conductor or strip metal conductor;
Described anticorrosive coat is a kind of conductive foaming macromolecular material anticorrosive coat, comprises conductive foaming rubber anti-corrosive layer, conductive foaming plastics anticorrosive coat or conductive foaming polyurethane anticorrosion layer;
The cross sectional shape of anticorrosive coat is rounded, square or quincunx, and the thickness of anticorrosive coat is 2～30mm.
Two, the manufacture craft of this module
The manufacture craft of this module comprises the following steps:
1. the component of anticorrosive coat
Anticorrosive coat is a major ingredient with the macromolecular material, is auxiliary material with the electric conducting material, and its part by weight is:
Macromolecular material: 100 parts, electric conducting material: 30～80 parts;
Described macromolecular material is rubber, plastics or polyurethane;
Described electric conducting material is any one in graphite and the carbon black, or two kinds mix;
2. macromolecular material and electric conducting material are mixed, process three kinds of conductive foamings respectively and get the raw materials ready: conductive foaming rubber is got the raw materials ready, conductive foaming plastic stock and conductive foaming polyurethane are got the raw materials ready;
3. coat respectively in the outside of three electrode cores 1 that one deck is above-mentioned gets the raw materials ready, obtain " rubber-type " " shaped plastics " or " polyurethane-type " foaming corrosion-preventing and resistance-reducing grounding module respectively.
Compared with prior art, this module has following major advantage and good effect is:
1. the contact area with the earth (is approximately 0.6m greatly
2);
2. can form excellent contact with various types of soil, rock well, reach the effect that reduces contact resistance;
3. have extremely strong moisture absorption, moisture-keeping function, near the resistivity of soil can greatly reducing;
4. sporadic through the good ion of this module, its ion is dissipated in the soil of underground 3～5m, and forms stable sheath, improve soil property on a large scale, thereby reduce the spreading resistance of soil;
5. the dissipation of ion can be led to than far beyond in the dark soil, links to each other with soil low-resistivity zone, promptly links to each other with lower soil horizon, water table and the metallic ore material layer of subsurface resistivity and improving the stream that looses;
6. contain anticorrisive agent in this module and can make its theoretical life-span, be far longer than the service life of galvanized steel greater than 50 years;
7. if earth mat in only with this module as falling the resistance mode; And do not consider the effect of ground connection band steel; Then the corrosion of ground connection band steel does not influence the resistance reducing effect of this module, and only as the use that connects lead, then the comprehensive service time of earth mat was greater than 50 years for horizontal grounding bodies such as ground connection band steel;
8. detect through test, after this module was hit in big electric current repeatedly, grounding resistance did not increase, yet not hardening, embrittlement, non-cracking phenomenon;
9. because this module adopts stable non-metallic conducting material as conducting medium, so it is corrosion-resistant, nontoxic, long service life and easy construction, conductivity does not receive seasonal effect;
10. its good ground connection effect of this module can reduce the effective length of ground connection connecting line.
In a word, this module is bigger with the contact area of the earth, and resistivity is little, long service life; Easy construction; Economize on resources, help environmental protection; Be applicable to the earthing device that needs to settle lightning rod, lightning arrester and lightning conduction on the buildings such as system such as electric power, communication, railway, broadcasting and TV, petrochemical industry and intelligent building, ammunition depot.
Description of drawings
Fig. 1 is the structural representation (front view cross section) of this module;
Fig. 2 is the structural representation (vertical view) of this module.
Among the figure:
The 1-electrode cores;
The 2-anticorrosive coat.
Embodiment
Specify below in conjunction with accompanying drawing and embodiment:
One, the structure of this module
1, overall
Like Fig. 1, Fig. 2, this module is made up of electrode cores 1 and the anticorrosive coat 2 that is coated on electrode cores 1 outside.
2, functional part
1) electrode cores 1
Electrode cores 1 is metallic cable, tubular metal conductor or strip metal conductor;
1. metallic cable: copper stranded conductor, aluminium stranded conductor or steel strand wire;
2. tubular metal conductor: steel pipe, copper pipe or aluminum pipe;
3. strip metal conductor: band steel, copper bar or aluminium row.
2) anticorrosive coat 2
The cross sectional shape of anticorrosive coat 2 is rounded, square or quincunx;
The thickness of anticorrosive coat (2) is 2～30mm.
Two, the manufacture craft of the component of anticorrosive coat and this module
1, the component of anticorrosive coat
Macromolecular material: 100 parts, electric conducting material: 30～80 parts;
Described macromolecular material is rubber, plastics or polyurethane;
Described electric conducting material is any one in graphite and the carbon black, or two kinds mix.
2, the manufacture craft of this module
Macromolecular material and electric conducting material are mixed, process three kinds of conductive foamings respectively and get the raw materials ready: conductive foaming rubber is got the raw materials ready, conductive foaming plastic stock and conductive foaming polyurethane are got the raw materials ready;
When 1. using conductive foaming rubber to get the raw materials ready
Earlier elastomeric polymeric material and electric conducting material are opened refining in mill, after electric conducting material dissolves into macromolecular material fully, approach logical 9～10 times, electric conducting material can be dispersed in the elastomeric polymeric material, process conductive foaming rubber and get the raw materials ready; Adopt general " extruding sulfuration " technology to coat one deck conductive foaming rubber then in the outside of electrode cores 1 and get the raw materials ready, behind formation " rubber-type " anticorrosive coat 2, promptly get " rubber-type " foaming corrosion-preventing and resistance-reducing grounding module.
When 2. using the conductive foaming plastic stock
Earlier plastics macromolecular material and electric conducting material are joined in the banbury, under the semi-molten state, mix the conductive foaming plastic stock that obtains mixing; Adopt general " injection mo(u)lding " technology to coat one deck conductive foaming plastic stock in the outside of electrode cores 1 then, behind formation " shaped plastics " anticorrosive coat 2, promptly get " shaped plastics " foaming corrosion-preventing and resistance-reducing grounding module.
When 3. using conductive foaming polyurethane to get the raw materials ready
Earlier polyurethane high molecule material and electric conducting material are joined and carry out high-speed stirred in the high speed agitator, the conductive foaming polyurethane that obtains mixing is got the raw materials ready; Adopt general " in-situ spraying " or " cast-in-site " technology to coat one deck conductive foaming polyurethane then in the outside of electrode cores 1 and get the raw materials ready, behind formation " polyurethane-type " anticorrosive coat 2, promptly get " polyurethane-type " foaming corrosion-preventing and resistance-reducing grounding module.
3, working mechanism
The conductivity of anticorrosive coat 2 mainly is to be determined by the distribution situation of electric conducting material in macromolecular material.Relate generally to the electric transmission problem of the electric conducting material that is distributed in the macromolecular material matrix.When the electric conducting material loading was low, the particle of electric conducting material or its aggregation irregularly were scattered in the macromolecular material matrix, and very difficult formation runs through the conductive path of whole macromolecular material.Along with the increase of electric conducting material content, the interface energy of aggregation filler is superfluous constantly to be increased, and the conducting particles number that is in contact with one another increases, and conducting particles begins to form conductive network, and the resistivity p that shows as system on the macroscopic view descends rapidly.System by insulator to semiconductor (10
12Ω .cm＞p＞10
6Ω .cm) changes; Continuation increase along with the electric conducting material particle content; When the electric conducting material particle each other can be closely near or directly the time; Promptly form continuous conductive network; This moment, the resistivity p of macromolecular material sharply reduced, and system interface energy surplus reaches a universal constant that has nothing to do with the macromolecule kind, and macromolecular material has become good conductor (p＜10
6Ω .cm); After surpassing the seepage flow threshold values, the electric conducting material particle of newly inserting is mainly participated in the conductive network that formed, and the probability that forms new current channel obviously reduces, so the variation of resistivity of material p is less.The specific insulation p of anticorrosive coat 2＜100 Ω .cm.Macromolecular material need add modifier as required in the process of preparation, make anticorrosive coat 2 can bear at least 0.1～50KA/cm
2Lightning surge (8/20 μ s waveform) electric current or 0.1～500A/cm
2(0.6s) power frequency fault current in short-term.
Three, embodiment
1, " rubber-type " foaming corrosion-preventing and resistance-reducing grounding module
Through detecting, this module can be born 50KA/m lightning surge (8/20 μ s waveform) electric current at least, or 1KA/m (0.6s) power frequency fault current in short-term.
2, " shaped plastics " foaming corrosion-preventing and resistance-reducing grounding module
Through detecting, this module can be born 50KA/m lightning surge (8/20 μ s waveform) electric current at least, or 1KA/m (0.6s) power frequency fault current in short-term.
3, " polyurethane-type " foaming corrosion-preventing and resistance-reducing grounding module
" polyurethane-type " anticorrosive coat relative density is little, specific strength is high, dimensional stability good, not mouldy, with good, the chemical solvent resistance of multiple basal plane material cementability can be superior, ageing-resistant performance is good, applicability is strong, applied range.
According to construction environment temperature, foam curing rate, performance requirement and form of construction work etc., can adjust the proportioning of anticorrosive coat material according to specific requirement.
Construction technology has:
1. " in-situ spraying " technology
This technology can be carried out construction operation vertically upward, downwards at the structure of any complicacy, is specially adapted to the structure and the special-shaped aspect of Any shape; Efficiency of construction is high, and speed of application is fast, reduces labor intensity greatly.
2. " cast-in-site " technology
After in-situ precast becomes different shape under the assembling of thermal insulating composite panel and facing template etc. and supporting, moulding by casting again.
This technology receives natural environment influence relatively little, at the scene one-shot forming; Efficiency of construction is high, and speed of application is fast.
Four, the use of this module
This module is when using, and block length is decided as required; Integral body can be to be horizontally disposed with, or vertical the setting; The depth of burying is decided according to step voltage, the frozen soil layer degree of depth, is generally 0.6m～0.8m; Bury spacing underground and be not less than 4m; And can form ground network by different monomers as required.
The method that this module is connected with cable has: can through two ends remove conductive foaming macromolecule anticorrosive coat 2 after, with special-purpose joint electrode cores 1 is connected with cable, carry out preservative treatment with corresponding material then.
Claims (1)
- One kind the foaming corrosion-preventing and resistance-reducing grounding module, it is characterized in that:This module is by electrode cores (1) and be coated on the outside anticorrosive coat (2) of electrode cores (1) and form;Described electrode cores (1) is metallic cable, tubular metal conductor or strip metal conductor;Described anticorrosive coat (2) is a kind of conductive foaming macromolecular material anticorrosive coat, comprises conductive foaming rubber anti-corrosive layer, conductive foaming plastics anticorrosive coat or conductive foaming polyurethane anticorrosion layer;The cross sectional shape of anticorrosive coat (2) is rounded, square or quincunx, and the thickness of anticorrosive coat (2) is 2～30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204091497U CN202275960U (en) | 2011-10-25 | 2011-10-25 | Antiseptic resistance-reducing foaming grounding module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204091497U CN202275960U (en) | 2011-10-25 | 2011-10-25 | Antiseptic resistance-reducing foaming grounding module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202275960U true CN202275960U (en) | 2012-06-13 |
Family
ID=46196298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204091497U Expired - Fee Related CN202275960U (en) | 2011-10-25 | 2011-10-25 | Antiseptic resistance-reducing foaming grounding module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202275960U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354822A (en) * | 2011-10-25 | 2012-02-15 | 武汉爱劳高科技有限责任公司 | Foamed anticorrosive resistance-reducing grounding module and production process thereof |
| CN109873257A (en) * | 2019-02-27 | 2019-06-11 | 国网陕西省电力公司电力科学研究院 | Reduce the capacitance compensation type grounding body and preparation method of earthing or grounding means impact impedance |
-
2011
- 2011-10-25 CN CN2011204091497U patent/CN202275960U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354822A (en) * | 2011-10-25 | 2012-02-15 | 武汉爱劳高科技有限责任公司 | Foamed anticorrosive resistance-reducing grounding module and production process thereof |
| CN102354822B (en) * | 2011-10-25 | 2013-09-11 | 武汉爱劳高科技有限责任公司 | Foamed anticorrosive resistance-reducing grounding module and production process thereof |
| CN109873257A (en) * | 2019-02-27 | 2019-06-11 | 国网陕西省电力公司电力科学研究院 | Reduce the capacitance compensation type grounding body and preparation method of earthing or grounding means impact impedance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201196976Y (en) | Anti-corrosion earth electrode | |
| CN102354822B (en) | Foamed anticorrosive resistance-reducing grounding module and production process thereof | |
| KR100907699B1 (en) | Ground plate | |
| CN103666199A (en) | Carbon nanotube modified conductive anticorrosive paint used for grounding grids, and preparation method thereof | |
| US20160163419A1 (en) | Corrosion protection of buried metallic conductors | |
| CN102983420A (en) | Grounding device for reducing shock ground impedance of electric transmission line tower | |
| CN111541121A (en) | Method for reducing impact grounding impedance of power transmission line tower | |
| CN201018019Y (en) | Electrolysis grounding device | |
| CN202275960U (en) | Antiseptic resistance-reducing foaming grounding module | |
| CN104529451A (en) | Graphite lightning-protection grounding module and preparation method thereof | |
| CN106205769A (en) | A kind of novel high polymer skeleton friction reducer | |
| CN102354821B (en) | Preparation method for corrosion-resistant metallic composite grounding body | |
| CN201499333U (en) | Heating cable | |
| CN203039216U (en) | Grounding-body moulding system | |
| CN201222376Y (en) | Snow-proof freezing-resistant environment protection aerial cable | |
| RU2690581C1 (en) | Anode bed | |
| CA2936606C (en) | High-voltage electric cable | |
| CN102983419A (en) | Grounding device and grounding method | |
| CN109004386A (en) | A kind of zero Europe earthed system | |
| CN210404078U (en) | Long-acting resistance-reducing grounding module | |
| CN202474249U (en) | Metal electrode corrosion preventing device for grounding resistance reducing module | |
| CN105071061A (en) | Lightning protection grounding system of power distribution transformer area | |
| CN201887163U (en) | Earthing bar | |
| CN207868413U (en) | A kind of ion slow-release soft graphite rope ground structure | |
| CN201773639U (en) | 10 kV Abrasion-resistant steel-cored overhead insulated cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Ailao Hi Tech Co. Ltd. Assignor: Wuhan Arrow Advanced Technology Co.,Ltd. Contract record no.: 2014990000186 Denomination of utility model: Antiseptic resistance-reducing foaming grounding module Granted publication date: 20120613 License type: Exclusive License Record date: 20140408 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20141025 |
|
| EXPY | Termination of patent right or utility model |