CN103854812A - Boat-bottom-type top face rhombus supporting pillar insulator string - Google Patents
Boat-bottom-type top face rhombus supporting pillar insulator string Download PDFInfo
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- CN103854812A CN103854812A CN201210512879.9A CN201210512879A CN103854812A CN 103854812 A CN103854812 A CN 103854812A CN 201210512879 A CN201210512879 A CN 201210512879A CN 103854812 A CN103854812 A CN 103854812A
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- insulator string
- insulator
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- full skirt
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Abstract
The invention relates to a boat-bottom-type top face rhombus supporting pillar insulator string of the roof of an electric locomotive. The boat-bottom-type top face rhombus supporting pillar insulator string is composed of a boat-bottom-type top face insulator sheet (1), a top armor clamp (2), a small umbrella skirt insulator sheet (3), a rhombus supporting pillar (4), an underframe fastening base (5) and an umbrella skirt inner side frost stopping pad (6). The boat-bottom-type top face rhombus supporting pillar insulator string is installed on the roof of the electric locomotive, the left side and the right side are provided with the boat-bottom-type top face insulator sheet (1) and the acute corner of the rhombus supporting pillar (4) respectively, when the electric locomotive runs in the heavy fog weather, the rhombus acute corner of the rhombus supporting pillar (4) guides collided supercooled water drop fog, ice crystal fog and the like in the running direction to the two sides of the rhombus supporting pillar (4), the ice crystal fog is prevented from being gathered on the rhombus supporting pillar (4) to form frost-shaped ice, and fog flicking faults caused by formation of conductive layers on the surface of the insulator string are prevented. The umbrella skirt inner side frost stopping pad (6) rich in grease has the hydrophobic character, dirty fog water drops can be prevented from being coagulated on the surface of the umbrella skirt inner side frost stopping pad (6), the inner sides of umbrella skirts of the supporting pillar insulator string are kept in the drying state, and the fog flicking faults caused by the formation of the conductive layers on the surface of the insulator string are prevented.
Description
One, technical field
The present invention relates to the supports insulative substring that a kind of power locomotive top uses, particularly relate to a kind of hull bottom type end face diamond pattern support column insulator string being formed by hull bottom type end face insulator sheet, top gold utensil, umbellule skirt insulator sheet, rhombic supporting post, underframe fastening base, full skirt inner side resistance frost pad etc.
Two, technical background
Although the electric locomotive of countries in the world is of a great variety, the main circuit power supply at electric locomotive top all adopts metal conducting bar and supporting insulator to carry out high tension transmission.Be all to utilize pantograph pan to gather high-tension electricity, be sent to metal conducting bar by pantograph frame, be then fed to the living load of electric locomotive.The pantograph frame of locomotive roof, conducting rod are all the uninsulated metal rods of nude, and the high pressure insulation against ground of tens thousand of volts is entirely by insulator support, and this is the tactic pattern that countries in the world electric locomotive is unified.
Because China is vast in territory, meteorology is changeable, electric railway runs through the areas such as vast rain, mist, ice and snow, and power locomotive top insulator is easily subject to the changeable impact of natural environment and climate, causes the mechanism condition of insulator generation flashover to increase.Have data statistics, electric locomotive waits the failure rate that causes to account for the more than 25% of all kinds of faults because insulation reduces, and in the time of annual seasonal variety, occurs often that large-area electric locomotive insulator mist flashes to resemble in some region.To directly cause contact line power failure, locomotive rescue once there is mist arcing fault, and upset the huge economic losses such as railway transportation order, to railway security, transportation brings very large impact and harm.Although the Ministry of Railways has organized some producers to transform electric locomotive top in recent years, change rubber or resin porcelain vase into, spray hydrophobic coating measure at insulator surface as supported porcelain vase, the fault of dodging because of power locomotive top generation mist is still a lot.
Power locomotive top insulator is because will support the equipment such as heavier pantograph, and by the support column enlarged diameter between insulator string full skirt, the area of its support column also just increases naturally.In the greasy weather between temperature-3 ℃～3 ℃, a large amount of the super-cooling waterdrop mist or the ice crystal fog that contain solubility dunghill have condensed in the atmosphere of low layer.Train is in the time of high-speed cruising, the insulator string of locomotive roof is the motion state of level side, support column windward side one side between between insulator string full skirt, the super-cooling waterdrop mist of dense fog or ice crystal fog particle in strong shock air, at a large amount of white shape ice of the surface aggregation of insulator support column, cause between the full skirt of insulator string by the phenomenon of white shape ice short circuit, greatly reduced the resistance of insulator, the intensity phenomenon that sparks greatly will occur in the time reaching a certain critical value.High-intensity discharge flashover can puncture the equipment such as insulator easily, and Here it is mist dodges or be called formation condition that pollution flashover, ice dodge and the process of generation.
In the time running into rainy weather, the full skirt inner side of insulator sheet can not touch rainwater, and the inner side of each full skirt of insulator string is dry state, and the resistance of insulator string also can not reduce.But the area serious in air pollution runs into foggy weather, if electric locomotive is under dead ship condition, due to the dirty fog pearl that can condense of the full skirt inner side at insulator sheet, the dirty fog pearl that contains solubility dunghill, can form a conductance layer on insulator sheet end face, full skirt inner side, support column surface, this conductance layer also can reduce the resistance of insulator, mist can occur in the time reaching certain critical value and dodge.The reason that many high-tension electricity conveying circuit generation mists dodge is all the dirty fog pearl that condenses inside the full skirt of various pillars or suspension insulator string, due to insulator string surface formation conductance layer.
Preventing electric locomotive insulator mist sudden strain of a muscle accident, is to guarantee the unimpeded important research topic of electric railway.Think after studying in the formation condition by electric locomotive mist is dodged and generating process, should study one can prevent at support column surface aggregation frost shape ice, with prevent the vehicle roof supports insulator string of dirty fog pearl that condenses in the full skirt inner side of insulator sheet, but the railway system be still blank in this regard so far.
Three, summary of the invention
Often there is in order to solve the insulator that current power locomotive top uses the problem that mist dodges, the invention provides a kind of hull bottom type end face rhombic supporting post insulator string being formed by hull bottom type end face insulator sheet, top gold utensil, umbellule skirt insulator sheet, rhombic supporting post, underframe fastening base, full skirt inner side resistance frost pad etc.
Hull bottom type end face diamond pattern support column insulator string of the present invention, in the time that train moves at a high speed: the insulator sheet of hull bottom type end face and the acute angle of rhombic supporting post are facing to windward side one side, by the particle such as super-cooling waterdrop mist, ice crystal fog colliding when the foggy weather locomotive high-speed cruising, the both sides of guiding insulator sheet and rhombic supporting post, avoid forming white shape ice at rhombic supporting post surface aggregation super-cooling waterdrop mist, ice crystal fog, cause between insulator string full skirt by white shape ice short circuit generation mist arcing fault.
The effect that the present invention is useful is: utilize the acute angle of hull bottom type end face rhombic supporting post, the particle such as super-cooling waterdrop mist, the ice crystal fog guiding both sides that collide during by locomotive high-speed cruising, have avoided assembling on diamond pattern support column the white shape ice that ice crystal fog forms; Utilize full skirt inner side resistance frost pad to prevent the dirty fog pearl that condenses in the full skirt inner side of insulator sheet, avoided forming on insulator string surface conductance layer generation mist arcing fault.
Feature of the present invention and advantage will be elaborated by reference to the accompanying drawings by embodiment.
Four, accompanying drawing explanation
Fig. 1, hull bottom type end face diamond pattern support column insulator string side schematic view
Fig. 2, hull bottom type end face diamond pattern support column insulator string front schematic view
Fig. 3-1, hull bottom type end face diamond pattern support column insulator sheet schematic top plan view
Fig. 3-2, hull bottom type end face diamond pattern support column insulator sheet front elevational schematic
Fig. 3-3, hull bottom type end face diamond pattern support column insulator sheet elevational schematic view
Fig. 3-4, the white mat structure schematic diagram of full skirt inner side resistance
In Fig. 1: hull bottom type end face insulator sheet 1, top gold utensil 2, umbellule skirt insulator sheet 3, diamond pattern support column 4, underframe fastening base 5, full skirt inner side resistance frost pad 6.
In Fig. 3-4: rhombus plastics or nylon material 7, the thin felt yarn fabric 8 of rhombus, round plastic or nylon material 9, circular thin felt yarn fabric 10.
Five, embodiment
Take accompanying drawing as embodiment, the invention will be further described:
With reference to Fig. 1: the present invention is made up of hull bottom type end face insulator sheet 1, top gold utensil 2, umbellule skirt insulator sheet 3, rhombic supporting post 4, underframe fastening base 5, full skirt inner side resistance frost pad 6 etc.Underframe fastening base 5 is arranged on the roof of electric locomotive, and top gold utensil 2 is supporting the equipment such as heavier motorcycle pantograph.Arranged on left and right sides is the acute angle of hull bottom type end face rhombic supporting post insulator, adapts to the operation of the forward and backward twocouese of locomotive.
With reference to Fig. 2: the front of hull bottom type end face rhombic supporting post insulator string of the present invention, it is just to the moving ahead or capable direction afterwards of locomotive operation, and positive lateral area is less than lateral area, the air drag while being conducive to reduce locomotive operation operation.
With reference to Fig. 3-2: rhombic supporting post 4 alow type end face insulator sheet 1 top and be overall structure, end face has certain gradient, below insulator sheet 1, there is the concavity of approximate umbrella or skirt shape inner side, and full skirt inner side resistance frost pad 6 is close to hull bottom type end face insulator sheet 1 inner side below.
With reference to Fig. 3-1: with reference to hull bottom type end face insulator sheet schematic top plan view, rhombic supporting post 4 is diamond shaped, for guaranteeing the enough creepage distances of insulator, hull bottom type end face insulator sheet 1 is also designed to diamond shaped, end face has certain gradient to make the shape of its approximate hull bottom.No matter locomotive is to which direction operation, the rhombus acute angle of rhombic supporting post 4 all can be in face of the direction of operation, by the both sides of the particle such as super-cooling waterdrop mist, the ice crystal fog guiding rhombic supporting post 4 colliding, avoid assembling white shape ice generation mist arcing fault on rhombic supporting post 4.
With reference to Fig. 3-3: with reference to hull bottom type end face insulator sheet elevational schematic view, the full skirt inner side resistance frost pad 6 that is full of consistent lubricant has hydrophobic character, be close to hull bottom type end face insulator sheet 1 below in the concavity of inner side full skirt, can stop the dirty fog pearl that condenses in the full skirt inner side of insulator sheet 1, the state that the inner side of each full skirt of supports insulative substring is kept dry, avoids forming on insulator string surface conductance layer generation mist arcing fault.
With reference to Fig. 3-4: full skirt inner side resistance frost pad 6 structural representations, be netted rhombus plastics or nylon material 7 are sticky in the thin felt yarn fabric 8 of rhombus together with, then be immersed in calcium-base grease, ceresine (suitably heating) or transformer oil, make 8 li of the thin felt of rhombus or yarn fabrics be full of lubricating grease, ceresine or transformer wet goods grease.The intensity of rhombus plastics or nylon material 7 when assembling, can be supported in the concavity of full skirt inner side, the grease being full of can stop the dirty fog pearl that condenses absolutely on its surface, and the state that the inner side of full skirt is kept dry has avoided forming on insulator string surface conductance layer generation mist arcing fault.Together with round plastic or nylon material 9 are sticky in the thin felt yarn fabric 10 of circle, can be made into circular full skirt inner side resistance frost pad, common pillar in applicable high-tension electricity conveying circuit or the full skirt of suspension insulator string use, can reach equally and avoid forming conductance layer on insulator string surface, prevent the effect of mist arcing fault.
Claims (2)
1. the hull bottom type end face rhombic supporting post insulator string being formed by hull bottom type end face insulator sheet, top gold utensil, umbellule skirt insulator sheet, rhombic supporting post, underframe fastening base, full skirt inner side resistance frost pad etc., it is characterized in that: the both sides of this rhombic supporting post are diamond shaped, when locomotive operation, the diamond shaped acute angle of rhombic supporting post is in face of traffic direction, by the both sides of the particle guiding rhombic supporting posts such as the ice crystal fog colliding, avoid assembling white shape ice generation mist arcing fault on rhombic supporting post.
2. hull bottom type end face rhombic supporting post insulator string according to claim 1, it is characterized in that: its full skirt inner side resistance frost pad is full of grease hydrophobic character, can stop the dirty fog pearl of surface condensation at full skirt inner side resistance frost pad, the state that the inner side of each full skirt of hull bottom type end face rhombic supporting post insulator string is kept dry, avoid forming conductance layer on insulator string surface and prevent mist arcing fault, can be made into the full skirt inner side resistance frost pad of toroidal simultaneously, for the common pillar in high-tension electricity conveying circuit or the full skirt of suspension insulator string, all can stop on the dirty fog pearl of full skirt inner side resistance frost pad surface condensation, the state that the inner side of insulator string full skirt is kept dry, avoid forming conductance layer on insulator string surface and prevent mist arcing fault.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512879.9A CN103854812A (en) | 2012-12-05 | 2012-12-05 | Boat-bottom-type top face rhombus supporting pillar insulator string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512879.9A CN103854812A (en) | 2012-12-05 | 2012-12-05 | Boat-bottom-type top face rhombus supporting pillar insulator string |
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| CN103854812A true CN103854812A (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210512879.9A Pending CN103854812A (en) | 2012-12-05 | 2012-12-05 | Boat-bottom-type top face rhombus supporting pillar insulator string |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269235A (en) * | 2014-10-17 | 2015-01-07 | 王玉华 | Opposite angular edge pillar anti-pollution-flashover insulator special for electric locomotives and motor train units |
| CN104992793A (en) * | 2015-07-08 | 2015-10-21 | 清华大学深圳研究生院 | Anti-icing insulator device and power transmission line |
| CN112560304A (en) * | 2020-12-02 | 2021-03-26 | 中国地质大学（北京） | Pillar insulator umbrella skirt micro-parameter design method based on rain flash characteristic |
-
2012
- 2012-12-05 CN CN201210512879.9A patent/CN103854812A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269235A (en) * | 2014-10-17 | 2015-01-07 | 王玉华 | Opposite angular edge pillar anti-pollution-flashover insulator special for electric locomotives and motor train units |
| CN104992793A (en) * | 2015-07-08 | 2015-10-21 | 清华大学深圳研究生院 | Anti-icing insulator device and power transmission line |
| CN112560304A (en) * | 2020-12-02 | 2021-03-26 | 中国地质大学（北京） | Pillar insulator umbrella skirt micro-parameter design method based on rain flash characteristic |
| CN112560304B (en) * | 2020-12-02 | 2023-05-09 | 中国地质大学（北京） | Umbrella skirt micro-parameter design method for post insulator based on rain-flash characteristics |
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Application publication date: 20140611 |