CN85101712A - High-tension synthetic insulator - Google Patents
High-tension synthetic insulator Download PDFInfo
- Publication number
- CN85101712A CN85101712A CN 85101712 CN85101712A CN85101712A CN 85101712 A CN85101712 A CN 85101712A CN 85101712 CN85101712 CN 85101712 CN 85101712 A CN85101712 A CN 85101712A CN 85101712 A CN85101712 A CN 85101712A
- Authority
- CN
- China
- Prior art keywords
- synthetic insulator
- insulator
- adhesive
- synthetic
- metal
- 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.)
- Withdrawn
Links
Images
Landscapes
- Insulators (AREA)
Abstract
The high-tension synthetic insulator a kind of by umbrella disk, that the excellent heart and metal termination three parts are formed.This insulator according to the characteristics of bar and Stress Analysis Design a kind of termination of new structure form; Its umbrella plate material is that what to adopt the present invention's development is the synthetic insulating material of base material with silicon rubber, and anti creepage trace and galvanic corrosion are decreased level greater than 6.0kV.This insulator system is bonded three parts by new process, has machinery and transfers good electrical property with dirty wetting, and is in light weight, and flexibility is arranged, not fragile, all can be made into single at any level, and temperature is no more than 200 ℃ during manufacturing, but advantages such as energy savings.
Description
The invention belongs to the seal that uses in " power transmission and transformation technology " field.
Because the capacity of power transmission and transformation increases day by day, voltage constantly raises, and long-term porcelain that uses and glass insulator are in mechanical performance, and be electric, and particularly the discharge performance under the wet condition of dirt can not adapt to the needs of this development.
At present, a lot of in the world countries all adopt high molecular synthetic material and glass fiber reinforced plastics composite material to develop insulator.The major programme that proposes is: by the umbrella disk of macromolecular material, three kinds of parts of the excellent heart of composite material and metal-ware are formed synthetic insulator after bonding, but the problem that needs to solve is:
1) umbrella disk: it is the external insulation of insulator, because of the high molecular synthetic material tolerable temperature not high, and umbrella disk is to be in for a long time under atmospheric conditions and the voltage effect, therefore good anti-weather-aging property must be arranged, performance is decreased in anti-tracking and galvano-cautery, and certain elasticity is arranged adapting to the strain of insulator under mechanical load, and easily processing etc.
2) the excellent heart: mainly be the parts that bear mechanical load, generally adopt composite material epoxy Fiber glass rod to make, its tensile strength is than the high 3-4 of porcelain times, and the back performance can reduce but it makes moist.
3) metal termination is that synthetic insulator and shaft tower and lead link, and transmits the parts of mechanical load, must be firm when therefore connecting with excellent heartwood material, and can give full play to the high-intensity performance of bar and prevent that its outer surface is corroded.
The research of carrying out this respect abroad is more than 10 years, entered on probationly at present by experimental stage, obtained certain progress.[its materials used and structure diagram see Appendix 1,2,3,4]
1) umbrella disk aspect: umbrella plate material once adopted polytetrafluoroethylene, though it has extremely good anti-weather-aging property, anti creepage trace and galvanic corrosion to decrease voltage levvl (can reach 6～7
Kv, be best in the macromolecular material [annex 4,5]), but its processing difficulties.What employing was more at present is cycloaliphatic epoxy resin (West Germany, Hungary), ethylene-propylene rubber and silicon rubber (U.S.), but the anti creepage trace performance of this material is generally lower, and silicon rubber is the highest to be no more than 4.0
Vk(annex 6).The leakage trace voltage levvl of the heat-shrinkable materials (radiation interlinkage) of U.S.'s Raychem place of matchmakers's production once can reach 6～7
Kv(, annex 5 suitable) with polytetrafluoroethylene, but this material of import is tested, but less than 2.5
Kv(annex 7)
2) excellent heartwood material: mainly be to adopt the epoxy glass fiber rod, its quality is more excellent, better performances, but the problem that equally also exists the back performance of making moist to reduce.
3) connection of metal termination and excellent heartwood material connects mode: because excellent heartwood material is the unidirectional fibre reinforcing material, its longitudinal strength is very high, and horizontal local crushing strength the and longitudinally shear strength of fiber is very low.Smooth outer surface is difficult for fastening, easy slip in addition, is difficult to reach the weight bearing power of specified requirement.For addressing this problem, the version [annex 8] of many metal terminations has been proposed abroad.But adopting more at present is anti-cone-shaped structure [annex 1,3,4], be about to excellent heartwood material two ends and cut the breach of certain-length, again the excellent heart is inserted in the fixing metal sleeve, squeezes into a metal wedge at breach place, excellent heart end then, the excellent heart is squeezed in the sleeve tightly and bears load.The advantage of this connecting mode is that structure processing is all simpler, it is bigger that bearing load also can reach, but its maximum shortcoming is the destroy integrity of excellent heartwood material, the intensity of material is reduced, and behind stand under load, rod heartwood material outwards can produce bigger initial rigid body slide displacement in the termination, reach certain initial tension load after, sliding just to tend to stablize stand under load, this has brought difficulty for the sealing of termination, overcome this drawback, sleeve will be extended, increase seal length to offset the initial sliding amount, or add tensile load in advance, its rigid body is slided disappear reach stablize stand under load after, again the termination is sealed, so just bring complexity to assembling.
4) good anticorrosive measure is not taked in the metal termination, makes synthetic insulator be applied to can have any problem under the direct voltage.
5) adhesive and packaging technology: synthetic insulator is formed after being processed respectively by three kinds of materials, and its umbrella disk also is to make singlely, is placed in respectively on the excellent heartwood material, therefore needs each parts bonding in aggregates with adhesive.Guarantee the quality of insulator, good adhesive and rational assemble method must be arranged.As in South Africa 220
KvThe synthetic insulator that circuit uses is because of the bonding bad accident several times that once occurred continuously.
Domestic development outdoor synthetic insulator promptly began at the beginning of the seventies, because single epoxy resin is only adopted in the restriction of material, because mechanical strength is not high, ageing-resistant performance was bad, and was easy to crack, so be eliminated at that time.There is minority unit carrying out the development of adopting two kinds of insulating material combinations to make the outdoor synthetic insulator in recent years.
Railway science institute has made 25
KvThe tunnel synthetic insulator, its excellent heartwood material is to adopt the alkyd resin Fiber glass rod, umbrella plate material once adopted polytetrafluoroethylene, silicon rubber, fluorine material, the insulator of making at last are to adopt addition-type silicon rubber, and umbrella disk is that directly cover adds rod in the heart, the connecting mode of the metal termination and the excellent heart is to adopt external anti-cone structure, but has done improvement.In addition, units such as Huadong Electric Power Testing Inst. are also in the development of carrying out the outdoor high-tension synthetic insulator, and they adopt silicon rubber as umbrella plate material, and excellent heartwood material is to adopt epoxy glass cloth laminated board to be processed into bar.The useless raw material of this method consumption are more.
The present invention is exactly at above-mentioned situation, and to the material of synthetic insulator, structure and technology are studied and a kind of high-tension synthetic insulator of making.It is characterized in that:
1) umbrella plate material that uses of the present invention is to adopt China can mass-produced silicon rubber to add a large amount of hibbsites as base material to make filler, and adds suitable ultraviolet absorber, and its prescription is as follows:
Silicon rubber: 100 parts; Hibbsite: 50～300 parts;
Peroxidating tri-isopropyl benzene: 1～5 part; Three rodizations, two antimony: 1～30 part;
Titanium dioxide: 1～20 part; Methyl-silicone oil: 2～20 parts;
Ultraviolet absorbent uv-9 is an amount of.
Adopted hot milling technology simultaneously, making being furnished with does not need to use banbury when a large amount of hibbsites are filler.
What make in this way is that the insulating material of base material has electrical property preferably with silicon rubber, and its trace of anti-electric leakage the and galvanic corrosion are decreased voltage levvl and reached greater than 6.0
Kv[annex 10], and kept the softness of silicon rubber, characteristics [seeing Appendix 11] such as flexible and Weather-resistant.Its processing is simple.Behind heat refining, be shaped with mould heat pressure, make single umbrella disk.
2) the present invention has extruded sheath in excellent heartwood material outside; the rod heart is to adopt homemade expoxy glass to draw group rod to make; in order to prevent at when operation moisture and the immersion of moisture; extrude silicone rubber jacket in excellent heartwood material outside; during assembling, this sheath stretches into the inside of metal termination with the sleeve of umbrella disk itself, after the assembling of metal termination is finished; the inner perfusion adhesive in the metal termination, this is in the protection excellent heartwood material fully.
3) the metal termination of the present invention's use is to adopt a kind of structure that is different from other metal terminations to form [seeing Appendix 8], and it has solved the problem that present domestic and international employed metal termination exists.
This structure can make termination and excellent heart connection place produce very big distribution pressure and frictional force, with the tension load of balanced action on insulator, does not but damage excellent heartwood material, so it is stressed rationally, constructs tight etc.Particularly, can regulate fastening force automatically to the excellent heart along with the increase of tensioning load, its self-lock ability height, and do not damage excellent heartwood material, excellent heartwood material high-tensile is given full play to.When equipment closely after, under the rated load effect, can not produce slippage, be convenient to seal and keep sealing intact, it can satisfy the requirement of various high tonnage grades to end device, its structure assembling section such as Fig. 1, its parts are as shown in Figure 2.
This end device is by 45
#The outer sleeve (1) that Fine Steel Casting iron or cast iron are made, screw thread screw thread draw ring (4) and A
3The inner conical drogue (2) that steel (or wrought iron or aluminium alloy) is made, the seal washer that silicon rubber rubber or ordinary rubber are made four part suits such as (3) constitute.
After the whole machine-shaping of inner conical drogue, by heart angle, garden α=120 ° of five equilibrium sleeves, open three parallel with sleeve axis, width is δ=1.5～2 millimeter perforation otch, and the small end E that is held by awl extends through big end D always, at the big end (D) of tapered sleeve, near the inner hole wall place, keep 1 * (1.5-2) millimeter thin layer, make the tapered sleeve that is divided into three locate to link and do not throw off, but keep inner conical drogue to be still the whole (see figure 3) that links of not exclusively separating at the awl big end of end (D).
Linkage editor as shown in Figure 2, it is pressed certain-length with the excellent heart termination of insulator and inserts the upper edge of the A hole of outer sleeve to Gewindefreistiche C, again inner conical drogue (2) is sleeved on the caput, force in hydraulic press or other machinery on the big end end ring cross section D of inner conical drogue, a caput insertion mouthful A who makes inner conical drogue small end port E wedging reach outer sleeve is close or flushes, again seal washer (3) is inserted in the groove of screw end B mouth of outer sleeve (1), screw on screw thread screw thread draw ring (4) then extremely to compressing seal washer (3), assembling promptly finishes.But it should be noted that when outer sleeve is inserted in excellent heart end, should make the sleeve of sheath and umbrella disk itself imbed the interior length of termination outer sleeve and be not less than 1.0 centimetres.
The termination of this version is except that can be used for the present invention, also can be used for the connector that the composite material lengthening uses, and as the anchor clamps of the Material Testing Machine elastomeric compositions application of force, with the actual stretched mechanical strength degree value [seeing Appendix 12] of the various different-diameter bars of measuring composite material.
4) use following adhesive with silicone rubber jacket and excellent heart storeroom between umbrella disk of the present invention and sheath:
Adopt general formula (R ' O) between single umbrella disk and with the adhesive of sheath
aS
i(100R ")
b, a+b=4 in the formula, a, b is the positive integer of 1-4, R ' can be alkyl, aryl, pi-allyl, vinyl, R, and " can be alkyl, two or more mixture of aryl is made crosslinking agent, and organo-tin compound solidifies the terminal hydroxy group siloxanes as promoter.
It is bonding to adopt vinyltriethoxysilane and tetrabutyl titanate lipoprotein mixture to carry out as primer between epoxy glass fiber rod and silicone rubber jacket, and the prescription of adhesive is as follows:
Terminal hydroxy group siloxanes: 100 parts;
Dimethoxy diacetoxy silane, two tert-butoxy silane mixtures:
1～4 part;
Dibutyl tin laurate: 0.05～5 part;
Treated 4
#White carbon: 5～30 parts.
5) since the material of synthetic insulator make and assembling process in portion's residual air slit within it, the electricity that will produce partial discharge and cause insulating of being in operation is aging and damage, so the present invention adopts following technical process:
At first excellent heartwood material is carried out vacuum treatment, its method is bar to be placed the container that fills (JHG-200J) low viscosity high-temperature silicon disulfide rubber carry out vacuum treatment, and vacuum degree is 10
-2-10
-3, the duration is 30-120 minute, when no bubble occurs, takes out the excellent heart and vulcanizes 1-2 hour under 110 °-140 ℃, extrudes to carry out vacuum treatment to extruding the excellent heart that protects rod in silicone oil again after sheath is finished before assembling, vacuum degree and time are with above-mentioned.
Extruding thickness on excellent heartwood material surface with tube extruding machine is that the silicone rubber jacket of 1-4 millimeters thick is not subjected to moisture content, the intrusion of moisture to protect excellent heartwood material.
Put on the excellent heartwood material that has sheath successively single umbrella disk and the fixed position, place it in then in the container, carry out vacuum treatment earlier, vacuum degree is 10
-2-10
-3Millimetres of mercury, the time is 30-120 minute, it is mutual with 1-4 atmospheric pressure adhesive to be poured into umbrella disk and sheath and umbrella disk with air compressor again, fill to the top until adhesive, left standstill after the taking-up 72 hours, and made its curing, carry out the assembling of metal termination then.
6) for synthetic insulator metal termination not being corroded and can being applied under the direct voltage, the present invention is at metal termination outer surface spraying salt tolerant, and is acidproof
#8401 coating add metal dust so that the surface conductance of metal termination does not reduce in coating.
7) the present invention is carried additionally the becket that diameter is the 200-500 millimeter at its synthetic insulator two ends, distributes to improve along the voltage of insulator, deflects from hard arc simultaneously, and avoids umbrella disk and metal termination by scaling loss.
The high-tension synthetic insulator of making according to said method has:
1) mechanical strength height can be made the insulator of high tonnage load;
2) discharge performance under resistant wets is good, is easy to solve the Insulation Problems in filthy area;
3) under any electric pressure, all can make single insulator, and can horizontally hang, will cause the significant innovation of shaft tower like this, thus the investment that can save transmission line construction;
4) its is in light weight, and has flexibility, installs for transportation and brings great convenience, has avoided loss;
Temperature is low when 5) making, and less than 200 ℃, therefore can save advantages such as a large amount of energy.
In the accompanying drawing 1: 0 is synthetic insulator body part sectioned view, and 1 is external conical sleeve, and 2 is inner conical drogue, and 3 is packing ring, and 4 is the tap fastening pulling ring.
In the accompanying drawing 2: 0 is the local figure of synthetic insulator itself, and 1 is external conical sleeve, and 2 is inner conical drogue, and 3 is rubber washer, and 4 is the tap fastening pulling ring.
Claims (7)
1, a kind of by umbrella disk, the synthetic insulator of three parts of the excellent heart and metal termination through being assembled into after bonding, it is characterized in that:
This umbrella plate material is the hibbsite by the silicon rubber escalated dose, makes through hot milling;
The structure of this metal termination is made by metal external conical sleeve and metal inner conical drogue, and has sprayed to ooze at metal termination outer surface and closing metal dust
#8401 coating.
This adhesive is added mixture of dimethoxy diacetoxy silane and two tert-butoxy diacetoxy silane etc. and forms by the terminal hydroxy group siloxanes.
2, synthetic insulator as claimed in claim 1 is characterized in that: the umbrella plate material formula components ratio of this synthetic insulator is:
Silicon rubber is than hibbsite=1: (0.5-3); Its hot milling temperature range is 80 ℃-180 ℃.
3, synthetic insulator as claimed in claim 1, the metal termination external conical sleeve that it is characterized in that this synthetic insulator by
#45 steel or cast iron are made, and inner conical drogue is by wrought iron or A
3Steel or aluminium alloy are made, and by heart angle, garden α=120 ° be divided into three width be δ=1.5-2 millimeter perforation otch and keep 1 * (1.5-2) millimeter thin layer in its larger diameter end near the inner hole wall place and be connected with each other and do not throw off.
4, synthetic insulator as claimed in claim 1 is characterized in that the adhesive formula composition ratio of this synthetic insulator is:
The terminal hydroxy group siloxanes is than mixture=1 of dimethyl diacetoxy silane and two tert-butoxy diacetoxy silane: (0.01-0.04).
5, a kind of process of making synthetic insulator is characterized in that:
This process is that excellent heartwood material is placed the container that fills (JHG-200J) low viscosity high-temperature silicon disulfide rubber, carry out vulcanizing treatment then, the excellent heartwood material that will extrude sheath is again put into the container that fills silicone oil and is carried out the vacuum treatment second time, again umbrella disk be sleeved on the excellent heartwood material of sheath thereafter, then carry out vacuum treatment, use the high pressure pouring adhesive simultaneously.
6, the process of manufacturing synthetic insulator as claimed in claim 5 is characterized in that: described vacuum treated vacuum degree is 10
-2～10
-3Millimeter of mercury; Time is 30～120 minutes.
7, as claim 5, the process of 6 described manufacturing synthetic insulators is characterized in that: the pressure of perfusion adhesive is 1-4 atmospheric pressure in the described adhesive adhesive bonding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101712A CN85101712B (en) | 1985-04-01 | 1985-04-01 | High-tension synthetic insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101712A CN85101712B (en) | 1985-04-01 | 1985-04-01 | High-tension synthetic insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85101712A true CN85101712A (en) | 1986-09-17 |
| CN85101712B CN85101712B (en) | 1988-06-29 |
Family
ID=4792009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85101712A Expired CN85101712B (en) | 1985-04-01 | 1985-04-01 | High-tension synthetic insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85101712B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051269C (en) * | 1993-06-25 | 2000-04-12 | 希巴特殊化学控股公司 | Process for the Manufacture of substantially hollow-cylindrical castings, and a substantially hollow-cylindrical casting |
| CN101208758B (en) * | 2005-04-04 | 2010-12-29 | 电力研究所有限公司 | Indicators for early detection of potential failures due to water exposure of polymer-clad fiberglass |
-
1985
- 1985-04-01 CN CN85101712A patent/CN85101712B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051269C (en) * | 1993-06-25 | 2000-04-12 | 希巴特殊化学控股公司 | Process for the Manufacture of substantially hollow-cylindrical castings, and a substantially hollow-cylindrical casting |
| CN101208758B (en) * | 2005-04-04 | 2010-12-29 | 电力研究所有限公司 | Indicators for early detection of potential failures due to water exposure of polymer-clad fiberglass |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85101712B (en) | 1988-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4217466A (en) | Composite insulators | |
| US4246696A (en) | Process for manufacturing open-air compound insulators | |
| CN205069242U (en) | Polymerization gold silicon pin insulator | |
| JPS61181015A (en) | Manufacture of high boltage resistant member | |
| CN101901649A (en) | High voltage power transmission transparent insulator | |
| US4505033A (en) | Methods of making high voltage resistant members | |
| CN1097894A (en) | Composite electrical insulator | |
| CN85101712A (en) | High-tension synthetic insulator | |
| CN1043405A (en) | Contain optical fiber insulator and manufacturing process thereof | |
| CN105427969B (en) | Hollow paste-injected post insulator employing vacuum impregnated fiber | |
| CN107731356A (en) | A kind of tension rat-and-ant proof blocks water low-voltage cable | |
| CN101017717A (en) | Ultra-high voltage compound brace insulator | |
| CN101174766A (en) | Outdoor terminal of crosslinked electric cable compound insulation sleeve | |
| CA2137659C (en) | Composite insulator | |
| CN114334304B (en) | Novel high-strength rod-shaped porcelain insulator | |
| CN216362070U (en) | Composite insulator of hard material layer reinforced core rod | |
| CN201259792Y (en) | Electric cable terminal combining cold-hot shrink | |
| CN1142558C (en) | Umbrella structure of composite insulator | |
| CN219716582U (en) | Pollution flashover-preventing epoxy glass fiber insulator | |
| CN110444350B (en) | Manufacturing method of overhead conductor | |
| CN205318940U (en) | Vacuum rubber soaks hollow notes cream post insulators of fibre | |
| CN209767108U (en) | Parallel groove clamp with good insulating property | |
| CN212847904U (en) | Low-voltage electric porcelain insulator | |
| CN1258194C (en) | Application of fluorinated silicone rubber to prepare synthetic insulator | |
| CN217239170U (en) | Ceramic jacket non-bearing type anti-icing lightning protection insulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| CI01 | Correction of invention patent gazette |
Correct: Huang Wensong False: Huang Wengao Number: 18 Page: 62 Volume: 2 |
|
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ERR | Gazette correction |
Free format text: CORRECT FROM: HUANG WENHAO TO: HUANG WENSONG |
|
| IP01 | Partial invalidation of patent right |
Decision date of declaring invalidation: 19920328 Decision number of declaring invalidation: 216 |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |