CN104577366A - Long-acting loss-free graphite resistance reduction cloth and manufacturing method and application of long-acting loss-free graphite resistance reduction cloth - Google Patents
Long-acting loss-free graphite resistance reduction cloth and manufacturing method and application of long-acting loss-free graphite resistance reduction cloth Download PDFInfo
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- CN104577366A CN104577366A CN201510042632.9A CN201510042632A CN104577366A CN 104577366 A CN104577366 A CN 104577366A CN 201510042632 A CN201510042632 A CN 201510042632A CN 104577366 A CN104577366 A CN 104577366A
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/012—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing wire harnesses
- H01B13/01254—Flat-harness manufacturing
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- Manufacturing & Machinery (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention provides a piece of long-acting loss-free graphite resistance reduction cloth and a manufacturing method and application of the long-acting loss-free graphite resistance reduction cloth. The graphite resistance reduction cloth is composed of composite graphite strips which are perpendicularly woven in a staggered mode. The composite graphite strips are formed by shaping and pressing composite graphite threads. The composite graphite threads are formed by twisting composite graphite belts. Each composite graphite belt is composed of two worm graphite layers and inorganic fiber which is laid between the two worm graphite layers. The inorganic fiber is coated with adhesive layers. The resistance reduction can be achieved for a grounding body by cutting the graphite resistance reduction cloth to obtain graphite resistance reduction belts and wrapping the grounding body in the graphite resistance reduction belts. Resistance reduction agents are replaced with the graphite resistance reduction cloth, the resistance reduction effect of the graphite resistance reduction cloth can not lose when underground water moves, and it can be ensured that the resistance reduction effect is permanently effective; meanwhile, the environment pollution problem caused by the resistance reduction agents can be solved.
Description
Technical field
The invention belongs to electric power Lightning protection field, particularly relate to a kind of long-acting falling without loss graphite and hinder cloth, its preparation method and application.
Background technology
The grounding-for-lightning device of China's electric power system is the critical facility ensureing power system safety and stability, guarantee power construction personnel personal safety, and low grounding resistance, the not low operation expense of burn into steady in a long-term are the targets of electric power system earthing device.The metallic ground materials such as existing electric power system ground network many employings carbon steel, stainless steel, galvanized steel, copper, copper covered steel, shape mostly is the metal tape of cylinder type metal rod or flat.
When electric power system generation lightning fault, the lightning current duration is very short, is generally no more than 1 millisecond.Therefore, thunder and lightning is flowed not cause step voltage to cross to the earth top priority that the problem such as high is grounding system within the time short as far as possible.In order to better achieve the above object, in Practical Project, often after earth electrode lays, around it, use resistance reducing agent.
But there are the following problems in actual use for resistance reducing agent: resistance reducing effect is unstable, along with passage of time and Groundwater Flow, resistance reducing agent easily slowly runs off thus causes resistance reducing effect to weaken.In addition, often containing number acid alkali salt ion in resistance reducing agent, the resistance reducing agent of loss pollutes to neighbouring soil and underground water.
Summary of the invention
For existing resistance reducing agent Problems existing, the invention provides and a kind ofly replace resistance reducing agent and resistance cloth, its preparation method and application fall in the long-acting graphite without running off of resistance reducing effect.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
One is long-acting falls resistance cloth without loss graphite, the reinforced composite graphite bar woven by vertical interlaced is formed, reinforced composite graphite bar is suppressed by the shaping of the composite stone line of ink marker and is obtained, the composite stone line of ink marker is obtained by composite stone ink ribbon twisted, composite stone ink ribbon is made up of two-layer myrmekite layer of ink and the inorfil being laid in two-layer worm graphite layers, and inorfil is coated with adhesive phase.
As preferably, the wide 2 ~ 4mm of reinforced composite graphite bar.
As preferably, inorfil at least comprises glass fibre.
As preferably, inorfil also comprises mechanics toughened fiber, and mechanics toughened fiber can be kevlar fiber and/or carbon fiber, and the quantitative proportion of mechanics toughened fiber and glass fibre does not limit.
The above-mentioned long-acting preparation method falling resistance cloth without loss graphite, comprises step:
Step 1, carries out roll-in to worm graphite and makes worm graphite paper;
Step 2, by inorfil surface infiltration adhesive, and is laid between two-layer worm graphite paper, obtains composite graphite paper through thermosetting, roll-in;
Step 3, cuts composite graphite paper and obtains composite stone ink ribbon, carries out twisted obtain the composite stone line of ink marker to composite graphite band;
Step 4, obtains reinforced composite graphite bar by composite stone line of ink marker shaping compacting, and vertical interlaced braiding reinforced composite graphite bar obtains graphite and falls resistance cloth.
As preferably, the raw-material carbon content of worm graphite is higher than 85%.
As preferably, worm graphite paper thickness is 0.1 ~ 1mm.
As preferably, inorfil is laid between two-layer worm graphite paper at equal intervals.
Above-mentioned long-acting without loss graphite fall resistance cloth application, cut graphite fall resistance cloth obtain graphite stopband falls, adopt graphite the coated earth electrode of stopband falls.
Compared to the prior art, tool of the present invention has the following advantages and beneficial effect:
1, adopt graphite of the present invention to fall resistance cloth and replace resistance reducing agent, its resistance reducing effect can not move with underground water and runs off, and can ensure the effectively permanent of resistance reducing effect; Also can avoid the problem of environmental pollution that resistance reducing agent causes simultaneously.
2, preparation technology is simple, with low cost, is applicable to scale application, has significant realistic meaning to electric power system Lightning protection field.
Accompanying drawing explanation
Fig. 1 is preparation technology's flow chart that resistance cloth falls in graphite of the present invention;
Fig. 2 is a kind of concrete structure schematic diagram that resistance cloth falls in graphite of the present invention.
Wherein, 1-reinforced composite graphite bar.
Specific embodiment
In concrete enforcement, the main raw materials of the present invention comprise carbon content higher than 85% high-purity worm graphite, adhesive, glass fibre, Kafra fiber and carbon fiber; Adhesive can adopt ethyl acrylate water-soluble binder or other resinae water-soluble binders.Carry out roll-in to worm graphite and make that smooth surface is smooth, the uniform worm graphite paper of thickness, worm graphite paper thickness is advisable with 0.1 ~ 1mm, and worm graphite paper thickness is excessive, easily ruptures during twisted.
The concrete preparation method of composite stone ink ribbon is as follows: adopt adhesive to be infiltrated in glass fibre, Kafra fiber and carbon fiber top layer, and be equidistantly laid between upper and lower two-layer worm graphite paper, keeps 60 ~ 100s to carry out thermosetting process in 80 ~ 120 DEG C of temperature; Then, composite graphite paper is obtained through more than twice roll-in.Further, cut composite graphite paper and obtain composite stone ink ribbon, gained composite graphite belt surface should be smooth, exposes graphite tape top layer without inorfil.
Carry out twisted to composite graphite band and obtain the composite stone line of ink marker, the shaping compacting composite stone line of ink marker obtains the reinforced composite graphite bar of wide 2 ~ 4mm, and vertical interlaced braiding reinforced composite graphite bar obtains graphite and falls resistance cloth.Fig. 2 illustrates the concrete weaving manner of one that resistance cloth falls in graphite, but the weaving manner that resistance cloth falls in graphite is not limited to shown in Fig. 2.Cut graphite according to Practical Project demand and earth electrode size and fall resistance cloth, obtain graphite and fall stopband, the complete coated earth electrode of stopband is fallen in graphite, to reach maximum resistance reducing effect by adhesive.
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Adhesive is adopted to be infiltrated in glass fibre, Kafra fiber and carbon fiber top layer, and be equidistantly laid between upper and lower two-layer worm graphite paper, composite graphite paper is obtained through roll-in, the number ratio of glass fibre, kevlar fiber and carbon fiber is 5:1:1, and glass fibre and kevlar fiber diameter are 0.15mm; Carbon fiber is 3K carbon fiber, its wide about 2mm, thick about 0.1mm.Composite graphite paper obtains graphite fall resistance cloth, its resistivity about 4 × 10 through cutting, twisted, shaping compacting, vertical interlaced braiding
-5Ω m.
Illustrate this patent described in above-described embodiment; though be described by specific term in literary composition; but the protection range of this patent can not be limited with this; the personage being familiar with this technical field can change it or revise and reach equivalent object after the spirit understanding this patent and principle; and this equivalence is changed and amendment, all should be covered by right and define in category.
Claims (9)
1. long-actingly fall a resistance cloth without loss graphite, it is characterized in that:
The reinforced composite graphite bar woven by vertical interlaced is formed, reinforced composite graphite bar is suppressed by the shaping of the composite stone line of ink marker and is obtained, the composite stone line of ink marker is obtained by composite stone ink ribbon twisted, composite stone ink ribbon is made up of two-layer myrmekite layer of ink and the inorfil being laid in two-layer worm graphite layers, and inorfil is coated with adhesive phase.
2. long-actingly fall resistance cloth without loss graphite as claimed in claim 1, it is characterized in that:
Wide 2 ~ the 4mm of described reinforced composite graphite bar.
3. long-actingly fall resistance cloth without loss graphite as claimed in claim 1, it is characterized in that:
Described inorfil at least comprises glass fibre.
4. long-actingly fall resistance cloth without loss graphite as claimed in claim 1, it is characterized in that:
Described inorfil also comprises mechanics toughened fiber.
5. long-actingly fall resistance cloth without loss graphite as claimed in claim 4, it is characterized in that:
Described mechanics toughened fiber is kevlar fiber and/or carbon fiber.
6. the long-acting preparation method falling resistance cloth without loss graphite, is characterized in that, comprise step:
Step 1, carries out roll-in to worm graphite and makes worm graphite paper;
Step 2, by inorfil surface infiltration adhesive, and is laid between two-layer worm graphite paper, obtains composite graphite paper through thermosetting, roll-in;
Step 3, cuts composite graphite paper and obtains composite stone ink ribbon, carries out twisted obtain the composite stone line of ink marker to composite graphite band;
Step 4, obtains reinforced composite graphite bar by composite stone line of ink marker shaping compacting, and vertical interlaced braiding reinforced composite graphite bar obtains graphite and falls resistance cloth.
7. the long-acting preparation method falling resistance cloth without loss graphite as claimed in claim 6, is characterized in that:
Described worm graphite paper thickness is 0.1 ~ 1mm.
8. the long-acting preparation method falling resistance cloth without loss graphite as claimed in claim 6, is characterized in that:
In step 2, described inorfil is laid between two-layer worm graphite paper at equal intervals.
9. long-acting application of falling resistance cloth without loss graphite according to claim 1, is characterized in that:
Cut graphite fall resistance cloth obtain graphite stopband falls, adopt graphite the coated earth electrode of stopband falls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510042632.9A CN104577366A (en) | 2015-01-28 | 2015-01-28 | Long-acting loss-free graphite resistance reduction cloth and manufacturing method and application of long-acting loss-free graphite resistance reduction cloth |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510042632.9A CN104577366A (en) | 2015-01-28 | 2015-01-28 | Long-acting loss-free graphite resistance reduction cloth and manufacturing method and application of long-acting loss-free graphite resistance reduction cloth |
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| CN104577366A true CN104577366A (en) | 2015-04-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785512A (en) * | 2017-02-10 | 2017-05-31 | 深圳供电局有限公司 | Graphite compound resistance reduction cylinder and its construction method are vertically grounded for electric power grounding grid |
| CN109273872A (en) * | 2018-10-12 | 2019-01-25 | 河南四达电力设备股份有限公司 | A kind of graphite-based flexibility drop resistance cloth and its production method for the laying of soft graphite counterpoise grounding |
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| KR20030044569A (en) * | 2001-11-30 | 2003-06-09 | 주식회사 디엠테크 | Method of construction for grounding a distribution line |
| CN101388260A (en) * | 2007-09-16 | 2009-03-18 | 任涤权 | Novel earthed resistance reducing agent and novel earthed resistance reducing module |
| CN203134992U (en) * | 2013-01-09 | 2013-08-14 | 张立涛 | Long-acting nonmetal earthing device |
| CN103490180A (en) * | 2013-10-23 | 2014-01-01 | 阮江军 | Novel graphite composite grounding material and preparation method thereof |
| CN104269206A (en) * | 2014-10-27 | 2015-01-07 | 武汉大学 | Low-specific resistance graphite thread and preparation method thereof |
| CN104269204A (en) * | 2014-10-27 | 2015-01-07 | 武汉大学 | Modified compound graphite yarn and preparation method thereof |
| CN204118278U (en) * | 2014-09-18 | 2015-01-21 | 河南盛煌电力设备有限公司 | Grounding-for-lightning device |
| CN204333297U (en) * | 2015-01-28 | 2015-05-13 | 武汉大学 | Long-acting without loss graphite, resistance cloth falls |
-
2015
- 2015-01-28 CN CN201510042632.9A patent/CN104577366A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030044569A (en) * | 2001-11-30 | 2003-06-09 | 주식회사 디엠테크 | Method of construction for grounding a distribution line |
| CN101388260A (en) * | 2007-09-16 | 2009-03-18 | 任涤权 | Novel earthed resistance reducing agent and novel earthed resistance reducing module |
| CN203134992U (en) * | 2013-01-09 | 2013-08-14 | 张立涛 | Long-acting nonmetal earthing device |
| CN103490180A (en) * | 2013-10-23 | 2014-01-01 | 阮江军 | Novel graphite composite grounding material and preparation method thereof |
| CN204118278U (en) * | 2014-09-18 | 2015-01-21 | 河南盛煌电力设备有限公司 | Grounding-for-lightning device |
| CN104269206A (en) * | 2014-10-27 | 2015-01-07 | 武汉大学 | Low-specific resistance graphite thread and preparation method thereof |
| CN104269204A (en) * | 2014-10-27 | 2015-01-07 | 武汉大学 | Modified compound graphite yarn and preparation method thereof |
| CN204333297U (en) * | 2015-01-28 | 2015-05-13 | 武汉大学 | Long-acting without loss graphite, resistance cloth falls |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785512A (en) * | 2017-02-10 | 2017-05-31 | 深圳供电局有限公司 | Graphite compound resistance reduction cylinder and its construction method are vertically grounded for electric power grounding grid |
| CN109273872A (en) * | 2018-10-12 | 2019-01-25 | 河南四达电力设备股份有限公司 | A kind of graphite-based flexibility drop resistance cloth and its production method for the laying of soft graphite counterpoise grounding |
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Application publication date: 20150429 |