CN204303480U - Electrification railway contact net bar-shaped porcelain insulator compound full skirt device - Google Patents
Electrification railway contact net bar-shaped porcelain insulator compound full skirt device Download PDFInfo
- Publication number
- CN204303480U CN204303480U CN201520034747.9U CN201520034747U CN204303480U CN 204303480 U CN204303480 U CN 204303480U CN 201520034747 U CN201520034747 U CN 201520034747U CN 204303480 U CN204303480 U CN 204303480U
- Authority
- CN
- China
- Prior art keywords
- full skirt
- porcelain insulator
- bar
- contact net
- railway contact
- 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
Landscapes
- Insulators (AREA)
Abstract
The utility model discloses a kind of electrification railway contact net bar-shaped porcelain insulator compound full skirt device, comprise bar-shaped porcelain insulator full skirt main body and be arranged on the full skirt cover in bar-shaped porcelain insulator full skirt main body, the top and bottom that described full skirt cover is coated on porcelain insulator full skirt fit tightly with porcelain insulator body structure surface, described full skirt puts and is also provided with abutment joint, described abutment joint is provided with positive and negative connecting pin, and described bar-shaped porcelain insulator full skirt body top, middle part and bottom respectively install a slice full skirt cover additional.The ice that compound full skirt device of the present utility model efficiently solves long-standing problem electrification railway contact net porcelain insulator dodges problem, effectively improves " pollution flashover " voltage in heavy pollution district, also increases the creep age distance of electrification railway contact net porcelain insulator simultaneously.Meanwhile, full skirt of the present utility model has excellent corrosion-resistant, ageing-resistant and hydrophobic and self-cleaning function, and lightweight, and site operation is convenient.
Description
Technical field
The utility model belongs to railway contact line field, particularly relates to a kind of electrification railway contact net bar-shaped porcelain insulator compound full skirt device.
Background technology
Contact net is in electric railway, sets up, get the high voltage transmission line of stream for pantograph along rail overhead "the" shape.Contact net is the main truss of railway electrification project, is the transmission line of electricity of the special shape of powering to electric locomotive of downline overhead erection.Electrification railway contact net has the objective circumstances such as running environment, requires that elements of contacting net should possess reliable mechanical strength and good electric property, thus ensures that continuous safe is powered, and ensures the safe operation of railway.
Icing is a kind of widely distributed natural phenomena, but for electric power and contact net system, icing is then natural calamity.Porcelain insulator icing too much or by ice slush bridge joint, causes porcelain insulator electric property to reduce, circuit porcelain insulator generation icing flashover fault, causes threat to line security operation.Main cause is porcelain insulator icing or by after ice slush bridge joint, and dielectric strength declines, and reveals Distance Shortened.During ice-melt, porcelain insulator local surfaces resistance reduces, and forms flashover fault, causes very large threat to the safe operation of electrification railway contact net.
The mode that existing electrification railway contact net bar-shaped porcelain insulator anti-ice-flashing measure adopts is in the large silicon rubber umbrella skirt of the direct bonding a slice of porcelain insulator full skirt upper surface, run by scene and test, reach the design effect of anti-ice-flashing, but find that this scheme exists following several shortcoming in using at the scene; 1) because full skirt entirety adopts bonding, and bonding agent needs ability solidification in 24 hours, inapplicable execute-in-place; 2) because on-the-spot wind is large, easily uncured bonding agent is blown off in bonding process, affect adhesive effect; 3) owing to being in strong wind district, the large full skirt after bonding is easily blown away.Due to above reason, such scheme is unsuitable for on-the-spot porcelain insulator and uses.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of electrification railway contact net bar-shaped porcelain insulator compound full skirt device, can overcome the above-mentioned defect of prior art.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of electrification railway contact net bar-shaped porcelain insulator compound full skirt device, comprise bar-shaped porcelain insulator full skirt main body and be arranged on the full skirt cover in bar-shaped porcelain insulator full skirt main body, the top and bottom that described full skirt cover is coated on porcelain insulator full skirt fit tightly with porcelain insulator body structure surface, described full skirt puts and is also provided with abutment joint, described abutment joint is provided with positive and negative connecting pin, and described bar-shaped porcelain insulator full skirt body top, middle part and bottom respectively install a slice full skirt cover additional.
Further, described full skirt cover adopts silastic material to form through high temperature vulcanized injection, and described high temperature vulcanized full skirt cover abutment joint is opening joint form.
Further, after described full skirt cover is enclosed within bar-shaped porcelain insulator full skirt main body, the partial-length of the full skirt main body that full skirt cover stretches out is 15cm ~ 25cm.
The beneficial effects of the utility model are: compound full skirt device of the present utility model is for forming silicon rubber umbrella skirt through HTHP customization, full skirt is by being sleeved on electrification railway contact net porcelain insulator full skirt surface, it and former porcelain full skirt are bonded together, form combination full skirt, suitable adjustment adhesive sheet number, the ice efficiently solving long-standing problem electrification railway contact net porcelain insulator dodges problem, " pollution flashover " voltage in effective raising heavy pollution district, also increases the creep age distance of electrification railway contact net porcelain insulator simultaneously.Full skirt of the present utility model has excellent corrosion-resistant, ageing-resistant and hydrophobic and self-cleaning function, and lightweight, and site operation is convenient.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from practice of the present utility model.Target of the present utility model and other advantages can be realized by description below and obtain.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is the utility model structural representation.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only in order to the utility model is described, instead of in order to limit protection domain of the present utility model.
As shown in Figure 1, a kind of electrification railway contact net bar-shaped porcelain insulator compound full skirt device, the full skirt main body 2 comprising bar-shaped porcelain insulator 1 and the full skirt cover 3 be arranged in bar-shaped porcelain insulator full skirt main body, the top and bottom that described full skirt cover is coated on porcelain insulator full skirt fit tightly with porcelain insulator body structure surface, described full skirt puts and is also provided with abutment joint, described abutment joint is provided with positive and negative connecting pin, and described bar-shaped porcelain insulator full skirt body top, middle part and bottom respectively install a slice full skirt cover additional.
Its mechanism of compound full skirt device of the present embodiment is as follows:
1, creep age distance is increased: at the additional umbrella cover that former porcelain insulator surface suit external diameter is large, can increase porcelain insulator leakage distance, be that porcelain insulator adjusts the effective measures of climbing.
2, hydrophobicity and migration of hydrophobicity: silicon rubber umbrella skirt has good hydrophobicity and hyperplasia animal migration, silastic material surface property is low, moisture exists with isolated form of moisture drops at silastic surface or pollution layer surface, pollution layer difficulty or ease are moistening, thus improve combined insulation dielectric surface situation, porcelain insulator surface leakage current after adding compound full skirt device is reduced, improves Flashover Characteristics, significantly improve the pollution flashover voltage of insulator.
3, self-cleaning: add after loading onto compound full skirt device and serve covering effect, porcelain vase contamination can be reduced, and full skirt itself has certain gradient, smooth surface, and be soft elastic material, under wind-force, rainwater effect, self-cleaning ability is strong, so, after installing compound full skirt device additional porcelain insulator contamination amount, salt is close all obvious reduction.
4, arc road is tortuous: install the shape that compound full skirt device improves porcelain insulator full skirt additional, extend arc channel, installs the dirt of front porcelain insulator additional, to dodge route be straight line to ice, and after installing additional, its flashover path is to bypass full skirt and shows meander-shaped, and distance compares length.
5, arc effect is hindered: porcelain insulator full skirt installs compound full skirt device additional and serves barrier action up and down, can stop the Emergence and Development of electric arc.
6, the accident that installs that compound full skirt device can stop the curtain of rain, ice slush causes full skirt " bridge network " additional, blocked the bridge joint path of bunch of insulator ice slush, the ice efficiently solving porcelain insulator dodges problem.
Compound full skirt device experiment testing result and the existing porcelain insulator testing inspection Comparative result of the present embodiment are as follows:
| Project | Porcelain insulator parameter in prior art | Adopt the parameter of the porcelain insulator after compound full skirt |
| Full skirt diameter mm | 210/181 | 254/238 |
| Creep age distance mm | ≥1400 | ≥1550 |
| Lightning impulse withstand voltage test kv | ≥230 | ≥300 |
| Power frequency dry flashover voltage test kv | ≥130 | ≥150 |
| Power frequency wet flash-over voltage test kv | ≥98 | ≥110 |
| Artificial pollution withstand voltage test kv | ≥31.5 | ≥31.5 |
Specimen sample send Ministry of Railways's product quality supervision and inspection central contact net component inspection station to carry out type approval test, and all technical all reaches designing requirement.Compared with porcelain insulator test product test data, property indices is all significantly improved, thus ensure that normal work and the traffic safety of electrification railway contact net greatly.Concrete result of the test is as following table:
| Project | Porcelain insulator | Install the porcelain insulator of compound full skirt device additional |
| Body overall length mm | 504 | 505 |
| Full skirt diameter mm | 210/181 | 254/238 |
| Creep age distance mm | 1450 | 1562 |
| Lightning impulse withstand voltage test kv | 300 flashovers | 300 non-flashovers, not puncture |
| Power frequency dry flashover voltage test kv | 150 | 158 |
| Power frequency wet flash-over voltage test kv | 99 | 111 |
| Artificial pollution withstand voltage test kv | ≥31.5 | ≥31.5 |
Can be obtained by above test data Comparative result: after installing compound full skirt device additional, the index such as creep age distance, lightning impulse withstand voltage test, the test of power frequency dry flashover voltage, the test of power frequency wet flash-over voltage of porcelain insulator all improves a lot, thus ensure that the safe operation of porcelain insulator, eliminate the generation of porcelain insulator ice sudden strain of a muscle accident, ensure that normal work and the traffic safety of electrification railway contact net.
In the present embodiment, described full skirt cover adopts silastic material to form through high temperature vulcanized injection, and described high temperature vulcanized full skirt cover abutment joint is opening joint form.Adopt one-shot forming general injection (mold pressing) technique, make umbrella cover device height closely knit, there is no bubble and gap, prevent entering of dunghill and aqueous vapor.
The compound full skirt device of the present embodiment adopts banburying+vacuum refining gluing method to make high performance silicon rubber: various powder pressurize in kneader in batches mixing, mixing, vacuumize the lower-molecular substance getting rid of sizing material, the mechanical performance of raising sizing material and electric property; In mixing, back mixing, park, the production process such as to vacuumize in should guarantee time enough, make rubber compounding even, impel various raw material molecule sufficient movement to disperse, make sizing material obtain best electromechanical properties.
The object that the injection (mold pressing) of the compound full skirt device of the present embodiment is shaping and mechanism
Product adopts one-shot forming general injection (mold pressing) technique, makes umbrella cover device height closely knit, does not have bubble and gap, prevents entering of dunghill and aqueous vapor.
Silicon rubber after mixing, curing molding (sulfuration) in a mold, the object of sulfuration:
Silicon rubber molecule short molecule is made to connect growth molecule
Silicon rubber molecule list string molecule is made to connect into network structure
There is provided sulfuration, silicon rubber, from semi liquid state plastic state, is solidified into stable full skirt shape.
The online reason of silicon rubber vulcanization glue:
Silicon rubber molecular thermalmotion
Silicon rubber molecule is close to each other, infiltration
Under the promotion of vulcanizing agent, molecule activation has free radical.Through the regular hour under uniform temperature, pressure, silicon rubber molecule forms long molecule and network molecular structure by covalent bond mutually, sulfuration is formed and has stable shaped full skirt in a mold, and full skirt has certain physical and mechanical properties and certain electrical insulation properties.
In the present embodiment, after described full skirt cover is enclosed within bar-shaped porcelain insulator full skirt main body, the partial-length of the full skirt main body that full skirt cover stretches out is 15cm ~ 25cm.Through overtesting find too small do not reach increase climb, rainproof sudden strain of a muscle, ice dodge effect; Excessive easy generation full skirt turned-down edge distortion, in addition, also affects attractive in appearance and correlation function, and adopts upper proper along length range.
In addition, the compound full skirt device of the present embodiment also has other effects except anti-ice-flashing:
1, excellent resistance to pollution flashover performance
Because compound full skirt device has good hydrophobicity and the animal migration of hydrophobicity, thus improve Power Flashover Voltage and anti-soil sudden strain of a muscle ability.This umbrella shape also has good wind and rain self-cleaning ability simultaneously, and contamination speed is slow, and it is also very convenient that artificial water rinses and cleans, and particularly in dust polluting environment, more sees that it is excellent.This compound full skirt device easily adjusts external insulation creep distance, can meet the requirement of seriously polluted area working line to insulator creep age distance.
2, shock-resistant ability is strong:
Compound full skirt device refers to firmly to wrap at porcelain insulator surface has carried out silicon rubber composite sheath, makes it have good shock-resistant ability.Simultaneously owing to making porcelain piece not be directly exposed in air, thus decrease the frequency that the porcelain piece that causes because of circumstance of temperature difference cataclysm or thunderbolt punctures or burst, thus greatly reduce line upkeep expense.
3, rainproof sudden strain of a muscle function:
In rainy season, because porcelain insulator umbrella spacing is little, easily there is rain and dodge.Due to the protective effect of compound full skirt device, make porcelain insulator edge can not form continuous print electric discharge eaves gutter, avoid rain sudden strain of a muscle accident.So rainproof sudden strain of a muscle function is remarkable.
4, anti-bird pest function:
The ight soil that bird is discharged on the upper hanging point cross-arm of porcelain insulator or mouth hold food in the month toward falling, mounted compound full skirt device stops, the birds droppings caused to fall and break or birdseed are away from porcelain insulator, the insulator surrounding electric field distortion avoided between grounding body (upper hanging point) electrical body (lower hanging point) causes point discharge, causes flashover fault.
5, structure is rationally unique:
Compound full skirt device, on the circuit of existing operation, can directly be installed, and without the need to adjusting former line-sag etc., it is very convenient to change.
6, compound full skirt device adopts high-quality composite insulating material to make, insulating properties and mechanical strength high, the life-span is long, and service life is more than 25 years; And be in operation and do not need to safeguard.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present utility model.
Claims (3)
1. an electrification railway contact net bar-shaped porcelain insulator compound full skirt device, it is characterized in that: comprise bar-shaped porcelain insulator full skirt main body and be arranged on the full skirt cover in bar-shaped porcelain insulator full skirt main body, the top and bottom that described full skirt cover is coated on porcelain insulator full skirt fit tightly with porcelain insulator body structure surface, described full skirt puts and is also provided with abutment joint, described abutment joint is provided with positive and negative connecting pin, and described bar-shaped porcelain insulator full skirt body top, middle part and bottom respectively install a slice full skirt cover additional.
2. according to the bar-shaped porcelain insulator compound full skirt device of the electrification railway contact net described in claim 1, it is characterized in that: described full skirt cover adopts silastic material to form through high temperature vulcanized injection, described high temperature vulcanized full skirt cover abutment joint is opening joint form.
3. according to the bar-shaped porcelain insulator compound full skirt device of the electrification railway contact net described in claim 2, it is characterized in that: after described full skirt cover is enclosed within bar-shaped porcelain insulator full skirt main body, the partial-length of the full skirt main body that full skirt cover stretches out is 15cm ~ 25cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520034747.9U CN204303480U (en) | 2015-01-19 | 2015-01-19 | Electrification railway contact net bar-shaped porcelain insulator compound full skirt device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520034747.9U CN204303480U (en) | 2015-01-19 | 2015-01-19 | Electrification railway contact net bar-shaped porcelain insulator compound full skirt device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204303480U true CN204303480U (en) | 2015-04-29 |
Family
ID=53109002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520034747.9U Expired - Fee Related CN204303480U (en) | 2015-01-19 | 2015-01-19 | Electrification railway contact net bar-shaped porcelain insulator compound full skirt device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204303480U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879571A (en) * | 2018-05-31 | 2018-11-23 | 南瑞集团有限公司 | Extra-high-tension cable terminal tower composite bushing |
-
2015
- 2015-01-19 CN CN201520034747.9U patent/CN204303480U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879571A (en) * | 2018-05-31 | 2018-11-23 | 南瑞集团有限公司 | Extra-high-tension cable terminal tower composite bushing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104351162B (en) | A kind of upside-down hanging insulator bird-damage prevention device | |
| CN101901649A (en) | High voltage power transmission transparent insulator | |
| CN101097797A (en) | Umbrella-shaped structure for combined insulator of high altitude ice-covering area | |
| CN204303480U (en) | Electrification railway contact net bar-shaped porcelain insulator compound full skirt device | |
| CN106024216A (en) | Antifouling type railway rod-shaped porcelain composite insulator and preparation method therefor | |
| CN201465671U (en) | high-performance composite insulator | |
| CN202948793U (en) | Antifouling glass insulator | |
| CN104200934A (en) | Fouling fog, ice and snow flash and bird strike prevention double-dovetail type insulator shielding cover and protection method thereof | |
| CN101275055A (en) | Long-term anti-pollution-flashover paint and preparation thereof | |
| CN204375507U (en) | Anti-soil type composite insulator | |
| CN107424691B (en) | A kind of production method of anti-fracture insulator | |
| CN108520810A (en) | A kind of glass insulator and its processing method of the function that falls off with anti-self-destruction | |
| CN203150330U (en) | A hydrophobic insulator | |
| CN208444681U (en) | It is a kind of to fall off the glass insulator of function with anti-self-destruction | |
| CN103342909B (en) | A kind of method realizing the weak hydrophobic nature of interchange surface of composite insulator | |
| CN208596578U (en) | A kind of spherical shape composite insulator | |
| CN106486218A (en) | A kind of high-voltage transmission line insulator umbrella head protector | |
| CN101770839A (en) | Suspension composite structure | |
| CN202394606U (en) | Protective cover used for suspension insulator string | |
| CN204234412U (en) | A kind of insulator cleaning structure of improvement | |
| CN204066903U (en) | A kind of antifouling mist ice and snow dodges the two skirt pin insulator radome of anti-bird pest | |
| CN106567600A (en) | Insulating cement wire pole | |
| CN108766681B (en) | Spherical composite insulator | |
| CN107481815B (en) | A kind of suspension insulator of wind-deviation, antifouling work | |
| CN2935400Y (en) | Antifouling flashover insulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20220119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |