CN204190332U - Gas-insulated transmission line - Google Patents
Gas-insulated transmission line Download PDFInfo
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- CN204190332U CN204190332U CN201420378274.XU CN201420378274U CN204190332U CN 204190332 U CN204190332 U CN 204190332U CN 201420378274 U CN201420378274 U CN 201420378274U CN 204190332 U CN204190332 U CN 204190332U
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- gas
- conductive layer
- composite layer
- transmission line
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Abstract
The utility model discloses a kind of gas-insulated transmission line, comprise the piping unit of some connections, each piping unit comprises housing, the conductor be arranged in described housing, and the insulating gas be arranged between described housing and described conductor, wherein, described housing comprises conductive layer and composite layer, and described conductive layer is processed by the material comprising conductive fiber.By the material comprising conductive fiber is processed into conductive layer, can, while guarantee good electrical performance, holistic cost be reduced greatly.
Description
Technical field
The utility model relates to a kind of high voltage power transmission gas-insulated transmission line, is specifically related to a kind of shell structure of gas-insulated transmission line.
Background technology
Power transmission mode traditional is at present formed primarily of overhead transmission line and cable line, overhead transmission line also exist line loss large, be subject to the impact of amblent air temperature factor, consume the defects such as large quantity space and land resource, and although cable line can be applicable to Urban Underground transmission of electricity, but line loss is large, capacitance current is large problem that it also exists equally, and the sectional area of cable line has almost reached technology and the economic limit at present, ampacity has been restricted, and also must be equipped with reactive power compensator and cooling system.
In recent years, require according to special climate geographical environment or Urban Underground transmission of electricity growth requirement, creating gas-insulated transmission line (GIL:Gas Insulated Line), is a kind of high voltage, high current power transmission equipment of adopting insulating gas insulation, shell and conductor coaxial to arrange.The characteristic of gas-insulated transmission line is similar to overhead transmission line, the problem that naked is aging, and loss is low, and safety is good, and occupation of land space is little, in Large Copacity long distance powedr transmission, have advantage.Because GIL is pipe sealing structure, directly buried installation, outdoor erection and tunnel usually can be adopted to install.Therefore for different natural environments, install very flexible.Compare with overhead wire with cable, conductor and shell interfaces are amassed large, and resistance is little, and thus loss seems relatively little.In addition, electric capacity is less than cable, even if long distance powedr transmission is also without the need to reactive power compensation and cooling system, operating cost reduces greatly.
But gas-insulated transmission line Problems existing is that primary equipment investment is comparatively large, although in the conveying of Large Copacity high voltage, its investment is lower than cable line, and the material costs such as higher aluminium alloy still constrain its development and apply.Although greatly can reduce construction cost by development direct-burried gas-insulated transmission line, metal material shell directly contacts with soil and there is corrosion problems.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of gas-insulated transmission line, while guarantee casing rigidity, greatly can reduce material cost.
For realizing above-mentioned utility model object, the technological means that the utility model adopts is as follows: a kind of gas-insulated transmission line, comprise the piping unit of some connections, each piping unit comprises housing, the conductor be arranged in described housing, and the insulating gas be arranged between described housing and described conductor, wherein, described housing comprises conductive layer and composite layer, and described conductive layer is processed by the material comprising conductive fiber.
Further, described conductive layer is entwined by the material comprising conductive fiber, and described composite layer is Wrapping formed by the glass fiber yarn of impregnation matrix material.
Further, described conductive layer is positioned at inside, and described composite layer is positioned at the outside of described conductive layer.
Further, described composite layer is directly Wrapping formed in the outside of described conductive layer.
Further, described composite layer is after outside is Wrapping formed, then is mounted to the outside of described conductive layer.
Further, described composite layer is divided into interior composite layer and outer composite layer, and described conductive layer is between described interior composite layer and described outer composite layer.
Further, between described conductive layer and described composite layer, coupling agent is set.By the effect of described coupling agent, described conductive layer and described composite layer are better combined, greatly improves the bonding strength of described conductive layer and described composite layer.
Further, described conductive fiber is any one in metallic fiber, carbon fiber or organic fiber.
Substituted by the conductive layer of the metal casing body economy by accounting for cost structure more than 40% and conductive layer mixed structure, and be processed into conductive layer by the material comprising conductive fiber, the holistic cost of gas-insulated transmission line can be made to decline more than 20%.Thus making when transmission line capability is greater than 1000MVA, gas-insulated transmission line just comparable cable line possesses economy advantage, has the prospect being applied to Urban Underground transmission of electricity.
Accompanying drawing explanation
Structure of the present utility model and mode of operation and further object and advantage are better understood by the description below in conjunction with accompanying drawing, and wherein, identical reference marker identifies identical element:
Fig. 1 is the cutaway view according to the piping unit of gas-insulated transmission line in the utility model first execution mode;
Fig. 2 is the partial enlarged drawing of the housing of piping unit shown in Fig. 1.
Fig. 3 is the partial sectional view of the housing of the piping unit of gas-insulated transmission line in the utility model second execution mode.
Embodiment
As requested, embodiment of the present utility model will be disclosed here.But should be understood that, execution mode disclosed is here only exemplary of the present utility model, and it can be presented as various forms.Therefore, here the detail disclosed is not considered to restrictive, and be only as the basis of claim and as instructing those skilled in the art differently to apply representational basis of the present utility model in appropriate mode any in reality, the various features comprising employing disclosed here also combine the feature that may clearly not disclose here.
Execution mode one:
As shown in Figure 1, be one of them piping unit 100 of the some piping units of gas-insulated transmission line in the utility model first execution mode, it comprises housing 1, the conductor 2 be arranged in housing 1, and be arranged on the insulating gas 3 between housing 1 and conductor 2.The two ends of housing 1 are separately installed with flange 4, and the two ends of conductor 2 support respectively by disc insulator 5.After flange 4 is fixing by securing member with corresponding disc insulator 5, conductor 2 is fixed in housing 1 coaxially, and forms the confined space of filling insulating gas 3.
The aluminum alloy materials that conductor 2 adopts electric conductivity high, effect is transmission current, and its external diameter is determined according to parameter requests such as concrete electric pressures.The material of disc insulator 5 is epoxy resin, for the formation of the confined space of housing insulation gas 3, and simultaneously supportive conductors 2 keep conductor 2 and housing 1 coaxially to arrange.Insulating gas 3 can select SF6 gas or SF6-N2 mist, has good stability and insulating properties.In present embodiment, insulating gas 3 selects SF6 gas.
Shown in composition graphs 2, housing 1 comprises conductive layer 11 and is positioned at the composite layer 12 of conductive layer outside, and conductive layer 11 is processed by the material comprising conductive fiber.After conductive layer and composite layer 12 connect, make housing 1 become two-layer composite, greatly reduce costs.
In present embodiment, housing 1 is overall Wrapping formed, it is directly Wrapping formed by conductive fiber for being positioned at inner conductive layer 11, and composite layer 12 is directly Wrapping formed in the outside of conductive layer 11, and both thickness is all determined according to the parameter request such as electric pressure and size of current.Particularly, composite layer 12 is directly entwined on the outer wall of conductive layer 11 by the glass fiber yarn of impregnation matrix material.
Conductive layer 11 can all be processed by conductive fiber, also can other fiber process be coordinated again to form by part from conductive fiber.Conductive fiber can be any one in metallic fiber, carbon fiber or organic fiber.Conductive fiber has good electric conductivity, thus makes the conductive layer 11 of machine-shaping have excellent electric property.
Composite layer 12 is composited by as the glass fiber yarn of reinforcing material and basis material.Basis material can be epoxy resin, vinyl ester resin, or polyurethane resin.In this real mode, basis material is epoxy resin.In the forming process of composite layer 12, epoxy resin adhesive liquid meeting and glass fiber yarn, through series of physical chemical change, form epoxy resin cured product.Simultaneously, this epoxy resin cured product forms the superior boundary layer of stuctures and properties between epoxy resin adhesive liquid and glass fiber yarn, this boundary layer is combined into an entirety glass fiber yarn and epoxide-resin glue, make the composite layer 12 be made up of this epoxy resin and glass fiber yarn have good mechanical performance and electric property, thus meet the bulk strength demand of housing 1.
In present embodiment, between conductive layer 11 and composite layer 12, also coupling agent is set, namely coupling agent is coated in the outer surface of conductive layer 11 before winding.By the effect of coupling agent, composite layer 12 and conductive layer 11 are better combined, greatly improve the bonding strength between composite layer 12 and conductive layer 11.
During concrete processing housing 1, first use conductive fiber on the core of wrapping machine (not shown), be wound around out the conductive layer 11 of predetermined thickness; Then coupling agent is coated with on the surface of conductive layer 11; Then be wound around at the outer surface of conductive layer 11 glass fiber yarn flooding basis material, and be increased to predetermined thickness, form composite layer 12; Eventually pass the techniques such as solidification, the demoulding and turning, namely complete processing, form novel two-layer compound housing 1.After housing 1 processes, then flange 4 is set in the two ends of housing 1 and mucilage binding together, now conductive layer 11 is connected with the flange 4 at two ends and is grounded conducting.
It may be noted that the utility model is not limited to the concrete structure in above-mentioned execution mode, wherein, composite layer 12 also can be arranged on the inside of conductive layer 11; After composite layer 12 can be wound around also machine-shaping individually on winding plug, and then be arranged on the outside or inside of conductive layer 11.
Execution mode two:
Second execution mode of the present utility model, the piping unit of the gas-insulated transmission line disclosed is substantially identical with piping unit 100 structure in the first execution mode, and difference is to have different shell structures.Specifically as shown in Figure 3, housing 6 in present embodiment, from-inner-to-outer is divided into interior composite layer 61, conductive layer 62 and outer composite layer 63 successively, conductive layer 62 is identical with conductive layer 11 structure in the first execution mode, and interior composite layer 61 is identical with composite layer 12 structure in the first execution mode with multiple with the structure of outer composite layer 63.
During processing housing 6, be first wound around at the outer surface of the core of wrapping machine the glass fiber yarn flooding basis material, form the interior composite layer 61 of predetermined thickness; Then be wound around conductive fiber at the outer surface of interior composite layer 61, form the conductive layer 62 of predetermined thickness; Then continue to be wound around the glass fiber yarn flooding basis material at the outer surface of conductive layer 62, form the outer composite layer 63 of predetermined thickness; Finally by techniques such as winding, solidification, turning, form housing 6.
Gas-insulated transmission line of the present utility model, its housing comprises conductive layer and composite layer, and conductive layer is processed by the material comprising conductive fiber, while guarantee electric property, holistic cost can be made greatly to reduce, the advantage large-scale application that it is lightweight, corrosion resistance is strong can be utilized simultaneously in urban underground power transmission system, give full play to economic and social benefit.
Technology contents of the present utility model and technical characterstic have disclosed as above; but be appreciated that; under creative ideas of the present utility model; those skilled in the art can make various changes said structure and material and improve; comprise the combination of disclosure or claimed technical characteristic separately here, comprise other combination of these features significantly.These distortion and/or combination all fall in the technical field involved by the utility model, and fall into the protection range of the utility model claim.
Claims (8)
1. a gas-insulated transmission line, comprise the piping unit of some connections, each piping unit comprises housing, the conductor be arranged in described housing, and the insulating gas be arranged between described housing and described conductor, it is characterized in that: described housing comprises conductive layer and composite layer, described conductive layer is processed by the material comprising conductive fiber.
2. gas-insulated transmission line as claimed in claim 1, it is characterized in that: described conductive layer is entwined by the material comprising conductive fiber, described composite layer is Wrapping formed by the glass fiber yarn of impregnation matrix material.
3. gas-insulated transmission line as claimed in claim 2, it is characterized in that: described conductive layer is positioned at inside, described composite layer is positioned at the outside of described conductive layer.
4. gas-insulated transmission line as claimed in claim 3, is characterized in that: described composite layer is directly Wrapping formed in the outside of described conductive layer.
5. gas-insulated transmission line as claimed in claim 3, is characterized in that: described composite layer is after outside is Wrapping formed, then is mounted to the outside of described conductive layer.
6. gas-insulated transmission line as claimed in claim 2, it is characterized in that: described composite layer is divided into interior composite layer and outer composite layer, described conductive layer is between described interior composite layer and described outer composite layer.
7. gas-insulated transmission line as claimed in claim 1, is characterized in that: arrange coupling agent between described conductive layer and described composite layer.
8. gas-insulated transmission line as claimed in claim 1, is characterized in that: described conductive fiber is any one in metallic fiber, carbon fiber or organic fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420378274.XU CN204190332U (en) | 2014-07-09 | 2014-07-09 | Gas-insulated transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420378274.XU CN204190332U (en) | 2014-07-09 | 2014-07-09 | Gas-insulated transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190332U true CN204190332U (en) | 2015-03-04 |
Family
ID=52622303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420378274.XU Withdrawn - After Issue CN204190332U (en) | 2014-07-09 | 2014-07-09 | Gas-insulated transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204190332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052011A (en) * | 2014-07-09 | 2014-09-17 | 江苏神马电力股份有限公司 | Gas-insulated power transmission line |
-
2014
- 2014-07-09 CN CN201420378274.XU patent/CN204190332U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052011A (en) * | 2014-07-09 | 2014-09-17 | 江苏神马电力股份有限公司 | Gas-insulated power transmission line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150304 Effective date of abandoning: 20170825 |