CN106877267A - Gas-insulated metal closed power transmission line - Google Patents
Gas-insulated metal closed power transmission line Download PDFInfo
- Publication number
- CN106877267A CN106877267A CN201710268208.5A CN201710268208A CN106877267A CN 106877267 A CN106877267 A CN 106877267A CN 201710268208 A CN201710268208 A CN 201710268208A CN 106877267 A CN106877267 A CN 106877267A
- Authority
- CN
- China
- Prior art keywords
- housing
- gas
- transmission line
- power transmission
- insulated 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
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- Gasket Seals (AREA)
Abstract
The invention discloses a kind of gas-insulated metal closed power transmission line, including several piping units, the piping unit includes housing, the ring flange positioned at housing two ends, the conductor in housing, the insulation compressed gas in housing for supporting the insulating supporting post of conductor and being arranged between housing and conductor, the sealing ring fitted with inner walls with outer ring surface is provided between housing described in adjacent two, the sealing ring two ends are provided with the card article for protruding from its outer ring surface, and the draw-in groove for coordinating with two card article inlay cards respectively is provided between housing described in adjacent two.By sealing ring, the sealing between adjacent two piping unit can be effectively improved.
Description
Technical field
The present invention relates to a kind of transmission line of electricity, more specifically, it relates to a kind of gas-insulated metal closed power transmission line.
Background technology
Traditional power transmission mode mainly is made up of overhead transmission line and cable run at present, overhead transmission line exist line loss greatly,
Easily influenceed by amblent air temperature factor, consumed the defects such as big quantity space and land resource, and although cable run can be applied to city
Underground transmission, but it equally exists the problem that line loss is big, capacitance current is big, and the sectional area of cable run has almost reached at present
The limit of technology and economy, current-carrying capacity is restricted, it is necessary to be equipped with reactive power compensator and cooling system.
Regarding to the issue above, the Chinese patent of Application No. 201420093317.X, it discloses a kind of gas-insulated electricity
Circuit, including some connections piping unit, each piping unit include housing, the conductor in the housing, be arranged on
The disc insulator at housing two ends and the insulating gas being arranged between the housing and the conductor, the housing include gold
Category layer and composite layer, the metal level constitute metal tube, and the composite layer constitutes multiple tube.Due to conductor and insulation
Insulating gas is filled between gas, the insulating properties and current-carrying capacity of transmission line of electricity can be effectively increased.
But, connected by flange between its two neighboring pipeline, and it is not high and cause its surface to work as flange machining accuracy
During out-of-flatness, the sealing property between adjacent two pipeline can be caused certain deviation occur, and then cause the integral sealing of circuit
Property it is bad, easily there is the phenomenon of leakage in its internal insulating gas, and the normal of influence circuit being used.
The content of the invention
It is an object of the invention to provide a kind of gas-insulated metal closed power transmission line, its have adjacent two piping unit it
Between favorable sealing property advantage.
Above-mentioned technical purpose of the invention technical scheme is that：It is a kind of gas-insulated metal-enclosed
Transmission line of electricity, including several piping units, the piping unit is including housing, the ring flange positioned at housing two ends, positioned at shell
Internal conductor, the insulation pressure in housing for supporting the insulating supporting post of conductor and being arranged between housing and conductor
Contracting gas, is provided with the sealing ring fitted with inner walls with outer ring surface, the sealing ring two ends between housing described in adjacent two
The card article for protruding from its outer ring surface is provided with, the card for coordinating with two card article inlay cards respectively is provided between housing described in adjacent two
Groove.
By above-mentioned setting, during realizing that two piping units are docked, first sealing ring is placed into housing, so
One of card article is snapped onto in draw-in groove afterwards, then realizes two docking of housing, due to housing it is relative can than larger, therefore
Staff can be entered into housing, then manually snap onto in draw-in groove another card article on sealing strip, you can realized
The installation of sealing strip.And after insulation compressed gas are passed through in housing, compressed gas crush seal circle, so that sealing ring
Outer ring surface be fitted tightly on the inner ring surface of housing such that it is able to effectively improve the sealing between adjacent duct units,
Insulation leakage of compressed gas in housing is prevented to a certain extent out.
Preferably, the minimum range on housing described in adjacent two between two draw-in grooves is less than between two card articles on adjacent seals circle
Distance.
By above-mentioned setting, after two card articles on sealing ring are snapped into draw-in groove, sealing ring is located between two card articles
Part the phenomenon for arching upward occurs, i.e., a space, the pressure and shell in the space can be formed between sealing ring and housing
Internal pressure is consistent；And when toward being filled with housing after insulation compressed gas, the pressure in housing becomes big, and institute in sealing ring
The pressure in the space for surrounding is different, therefore, the compressed gas that insulated in the presence of pressure difference meeting crush seal circle, from
And sealing ring is remained laminating inner walls, it is ensured that and the sealing between adjacent two piping unit, while also being capable of card article
Split away off from draw-in groove.
Preferably, it is provided with the housing and contradicts card article under the effect of housing interior insulation compressed gas to prevent card article from taking off
From the clamping element of draw-in groove.
By above-mentioned setting, when insulation compressed gas are constantly filled with housing, the pressure in housing constantly increases,
And at this time, clamping element can push against card article in the presence of the pressure such that it is able to effectively prevent card article from departing from draw-in groove.
Preferably, the clamping element include through inner walls the first chute, be arranged on the first chute wall and with card
The first sliding block that the second chute that groove is communicated, sliding are arranged in the first chute, sliding is arranged in the second chute and one end can
The second sliding block and being arranged between the first sliding block and the second slipping block contradicted with sealing ring makes the STATEMENT OF FEDERALLY SPONSORED that both link.
By above-mentioned setting, when insulation compressed gas are constantly filled with housing, the pressure in housing constantly increases,
A pressure difference can be produced with outside housing, the first sliding block can be and the outer pressure of housing is constant, therefore now in housing
Towards shell extracorporeal movement in the presence of the pressure difference；Due to there is STATEMENT OF FEDERALLY SPONSORED between the first sliding block and the second sliding block, in STATEMENT OF FEDERALLY SPONSORED
In the presence of, the first sliding block can drive the second sliding block to be moved towards the direction of card article, so that one end of the second sliding block can be by
Card article is pushed against, and prevents card article from departing from from draw-in groove.
Preferably, the STATEMENT OF FEDERALLY SPONSORED include the oblique dovetail groove that is arranged on the first sliding block and be arranged on the second sliding block and with
The oblique dovetails that oblique dovetail groove sliding coordinates.
By above-mentioned setting, when the first sliding block in housing in the presence of pressure to shell extracorporeal movement during, oblique swallow
Relative sliding can be produced between stern notch and oblique dovetails, so that the first sliding block is during towards shell extracorporeal movement, its
The second sliding block can be driven to be moved towards card article, so as to realize the clamping to card article.
Preferably, also including fixed seat, be fixed in fixed seat with housing be socketed retainer ring, be provided with the housing
The collision piece contradicted with retainer ring under insulation compressed gas effect.
By above-mentioned setting, housing is fixedly clamped in fixed seat by retainer ring；And it is exhausted with being constantly filled with housing
When edge compressed gas, pressure in housing is constantly in increase, and in the presence of the pressure, insulation compressed gas can drive
Dynamic collision piece pushes against retainer ring, prevents housing from the phenomenon rocked occur to a certain extent.
Preferably, the collision piece includes that through hole and the through hole sliding through housing coordinate and one end can be supported with retainer ring
Tactile conflict block.
By above-mentioned setting, constantly insulation compressed gas are filled with housing, the pressure in housing constantly increase,
And the pressure outside housing is constant, therefore now conflict block is understood towards shell extracorporeal movement in the presence of the pressure difference, so that
Retainer ring is pushed against, prevents housing from shaking phenomenon occur to a certain extent, while certain damping can be also played to housing making
With.
Preferably, elastic component is arranged with the conflict block, one end of the elastic component is fixedly connected with inner walls, separately
One end is fixedly connected with the side wall for contradicting block.
By above-mentioned setting, the presence of elastic component can be such that conflict block is connected on housing well, effectively prevent from contradicting
Block departs from from through hole.
Preferably, be provided with the housing around contradict block formed enclosed construction seal, the seal with support
Contact block sealing coordinates.
By above-mentioned setting, the presence of seal, it can coordinate with contradicting block and form sealing well, when contradict block with
When there is certain gap between through hole, seal also can effectively prevent the insulation leakage of compressed gas of inside outside
Boundary.
Preferably, the cavity of sealing is formed between the seal and conflict block.
By above-mentioned setting, due to there is larger pressure in housing, and the pressure and the pressure in the external world in cavity are one
Cause, therefore now seal in the presence of the pressure difference, can by compressed dielectric gas tightly be against conflict block on so that
Ensure seal and contradict between block can possess good sealing, prevent insulation compressed gas in housing by through hole from
Housing internal leakage is gone out.
In sum, the invention has the advantages that：
1., by sealing ring, good sealing function can be played between adjacent two piping unit；
2., by the mating reaction of collision piece and retainer ring so that housing can be fixed effectively, place housing and occur shaking
Dynamic phenomenon；
3. the presence of seal, can effectively prevent the insulation compressed gas in housing from being gone out from housing internal leakage.
Brief description of the drawings
Fig. 1 is the structure chart of the present embodiment；
Fig. 2 is the enlarged drawing of part A in Fig. 1；
Fig. 3 is the enlarged drawing of part B in Fig. 1；
Fig. 4 is the structure chart of the second sliding block in the present embodiment；
Fig. 5 is the structure chart of the first sliding block in the present embodiment；
Fig. 6 is the structure chart of retainer ring in the present embodiment.
In figure：1st, conductor；2nd, housing；21st, draw-in groove；22nd, the first chute；23rd, the second chute；3rd, insulating supporting post；4th, it is solid
Determine ring；41st, upper ring body；42nd, lower ring body；5th, ring flange；6th, sealing ring；7th, fixed seat；8th, card article；9th, collision piece；91st, contradict
Block；92nd, through hole；10th, the second sliding block；11st, the first sliding block；111st, oblique dovetail groove；12nd, seal；13rd, cavity；14th, spring；15、
Oblique dovetails.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
A kind of gas-insulated metal closed power transmission line, reference picture 1, including several piping units, fixed seat 7 and it is used for
Piping unit is fixed on the retainer ring 4 in fixed seat 7, piping unit includes the housing 2 of annular, is arranged on the two ends of housing 2
Ring flange 5, the conductor 1 in housing 2, be arranged on the inwall of housing 2 for support conductor 1 insulating supporting post 3 and set
Put the insulation compressed gas between housing 2 and conductor 1；Wherein, insulating supporting post 3 has 4, is divided into two groups, respectively in housing 2
Inwall is at the position of two ring flanges 5；Compressed dielectric gas are compressed air.
Reference picture 6, retainer ring 4 includes the lower ring body 42 being fixed in fixed seat 7 and the upper ring body coordinated with lower ring body 42
41, upper ring body 41 and lower ring body 42 are realized connecting by screw.Reference picture 1 and Fig. 3, are provided with housing 2 and are compressed in insulation
The lower collision piece 9 contradicted with retainer ring 4 of gas effect, the collision piece 9 includes being slid through the through hole 92 and through hole 92 of housing 2
Coordinate and one end can be arranged with elastic component with the conflict block 91 for contradicting ring conflict on block 91 is contradicted, the elastic component is spring 14,
One end of spring 14 is welded on the inwall of housing 2, and the other end is welded on the side wall for contradicting block 91.
Reference picture 3, is additionally provided with around the seal 12 for contradicting the formation enclosed construction of block 91, seal 12 on housing 2
Cross sectional shape coordinate with contradicting block 91 and form sealing in funnel-form and seal 12, seal 12 and contradict can shape between block 91
Into a cavity 13 for closing, spring 14 is located in the cavity 13.
Referring to Figures 1 and 2, the sealing ring 6 that outer ring surface is fitted with the inwall of housing 2 is provided between adjacent two housings 2,
The two ends of sealing ring 6 are provided with the card article 8 for protruding from its outer ring surface, are provided with two ring flanges 5 in the inwall of housing 2
The draw-in groove 21 coordinated with card article 8, i.e., when two housings 2 are docking together, two card articles 8 on sealing ring 6 can block respectively
Enter onto two housings 2 in two adjacent draw-in grooves 21, and in order to enable sealing ring 6 to realize better seal effect, two shells
After body 2 is docked, the minimum range of adjacent two draw-in groove 21 is less than the distance between two card articles 8 on sealing ring 6 on two housings 2, i.e.,
After two card articles 8 are buckled into draw-in groove 21, one can be formed on sealing ring 6 and is arched upward.
Referring to Figures 1 and 2, it is provided with housing 2 and contradicts card article 8 to prevent card under the effect of the interior insulation gas of housing 2
Bar 8 depart from draw-in groove 21 clamping element, clamping element include through housing 2 the first chute 22, set the side wall of the first chute 22 and with
The first sliding block 11 that the second chute 23 that draw-in groove 21 is communicated, sliding are arranged in the first chute 22, sliding are arranged on the second chute
The second sliding block 10 that in 23 and one end can contradict with sealing ring 6 and it is arranged between the first sliding block 11 and the second slipping block and makes both
The STATEMENT OF FEDERALLY SPONSORED of linkage；Wherein, the first sliding block 11 and the sealing of the first chute 22 coordinates, and the second sliding block 10 is matched somebody with somebody with the sealing of the second chute 23
Close；Reference picture 4 and Fig. 5, STATEMENT OF FEDERALLY SPONSORED include the oblique dovetail groove 111 being arranged on the first sliding block 11 and are arranged on the second sliding block 10
Oblique dovetails 15, oblique dovetail groove 111 and oblique dovetails 15 sliding coordinate.
Use process：After the docking to piping unit is completed, compressed air is filled with toward housing 2 is interior, and with compression
Air is constantly filled with, the pressure in housing 2 constantly raising, and in the space surrounded by sealing ring 6 and the inwall of housing 2
Pressure is constant, therefore, sealing ring 6 can in the presence of the pressure difference being fitted with the inwall of housing 2 tightly, prevent housing 2
Interior compressed air lets out from the gap location between two housings 2；And at the same time, because the pressure outside housing 2 is constant
, the first sliding block 11 can be slided under the pressure difference towards housing 2 is outer, and due to having oblique dovetail groove 111 and oblique dovetails 15
Coordinate, the first sliding block 11 can drive the second sliding block 10 to be moved towards the direction of card article 8, so as to be offseted with card article 8, can effectively prevent
Only card article 8 departs from draw-in groove 21, ensure that sealing ring 6 to the effective sealing between two housings 2 to a certain extent.Additionally, supporting
Contact block 91 can also be moved in the presence of the pressure difference towards housing 2 is outer, so as to be offseted with the inner ring surface in fixation, to a certain degree
On prevent housing 2 from shaking phenomenon occur, while also certain cushioning effect can be played to housing 2.
And when contradicting block 91 under the pressure action towards during the outer motion of housing 2, due to seal 12 with contradict
The pressure in cavity 13 that block 91 is surrounded is constant, therefore, compressed air meeting squeeze sealing member 12, so that seal 12
Can by tightly be squeezed in conflict block 91 on, prevent the compressed air in housing 2 from being let out from through hole 92.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected by Patent Law in the right of invention.
Claims (10)
1. a kind of gas-insulated metal closed power transmission line, including several piping units, the piping unit includes housing
(2) ring flange (5), positioned at housing (2) two ends, the conductor (1) in housing (2), led for support in the housing (2)
The insulating supporting post (3) of body (1) and the insulation compressed gas being arranged between housing (2) and conductor (1), it is characterized in that：Phase
The sealing ring (6) fitted with housing (2) inwall with outer ring surface, the sealing ring (6) two are provided between housing (2) described in adjacent two
End is provided with the card article (8) for protruding from its outer ring surface, is provided between housing (2) described in adjacent two and blocked with two card articles (8) respectively
The draw-in groove (21) that scarf is closed.
2. gas-insulated metal closed power transmission line according to claim 1, it is characterized in that：Housing (2) described in adjacent two
Minimum range between upper two draw-in groove (21) is less than the distance between two card articles (8) on adjacent seals circle (6).
3. gas-insulated metal closed power transmission line according to claim 1, it is characterized in that：Set on the housing (2)
Have and contradict card article (8) under the effect of housing (2) interior insulation compressed gas to prevent card article (8) from departing from the clamping element of draw-in groove (21).
4. gas-insulated metal closed power transmission line according to claim 3, it is characterized in that：The clamping element includes running through
First chute (22) of housing (2) inwall, it is arranged on the first chute (22) side wall and the second chute communicated with draw-in groove (21)
(23) the first sliding block (11) that, sliding is arranged in the first chute (22), sliding is arranged in the second chute (23) and one end can
The second sliding block (10) and being arranged between the first sliding block (11) and the second slipping block contradicted with sealing ring (6) makes both linkages
STATEMENT OF FEDERALLY SPONSORED.
5. gas-insulated metal closed power transmission line according to claim 4, it is characterized in that：The STATEMENT OF FEDERALLY SPONSORED includes setting
Oblique dovetail groove (111) on the first sliding block (11) and it is arranged on the second sliding block (10) and matches somebody with somebody with oblique dovetail groove (111) sliding
The oblique dovetails (15) closed.
6. gas-insulated metal closed power transmission line according to claim 1, it is characterized in that：Also including fixed seat (7), admittedly
The retainer ring (4) being socketed with housing (2) is scheduled in fixed seat (7), is provided with the housing (2) in insulation compressed gas effect
The collision piece (9) that lower and retainer ring (4) is contradicted.
7. gas-insulated metal closed power transmission line according to claim 6, it is characterized in that：The collision piece (9) includes
The conflict block (91) that through hole (92) and through hole (92) sliding through housing (2) coordinates and one end can contradict with retainer ring (4).
8. gas-insulated metal closed power transmission line according to claim 7, it is characterized in that：Covered on conflict block (91)
Elastic component is provided with, one end of the elastic component is fixedly connected with housing (2) inwall, the other end is fixed with the side wall for contradicting block (91)
Connection.
9. gas-insulated metal closed power transmission line according to claim 7, it is characterized in that：Set in the housing (2)
Have around the seal (12) for contradicting block (91) formation enclosed construction, the seal (12) coordinates with block (91) sealing is contradicted.
10. gas-insulated metal closed power transmission line according to claim 9, it is characterized in that：The seal (12) with
The cavity (13) of sealing is formed between conflict block (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710268208.5A CN106877267B (en) | 2017-04-22 | 2017-04-22 | Gas-insulated metal closed power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710268208.5A CN106877267B (en) | 2017-04-22 | 2017-04-22 | Gas-insulated metal closed power transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106877267A true CN106877267A (en) | 2017-06-20 |
| CN106877267B CN106877267B (en) | 2018-05-29 |
Family
ID=59163813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710268208.5A Expired - Fee Related CN106877267B (en) | 2017-04-22 | 2017-04-22 | Gas-insulated metal closed power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106877267B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110650599A (en) * | 2019-09-23 | 2020-01-03 | 深圳市九洲卓能电气有限公司 | Automobile and automobile blind area detection sensor module |
| CN111244878A (en) * | 2020-01-18 | 2020-06-05 | 芜湖明远电力工程咨询设计有限公司 | Gas-insulated metal-enclosed transmission line |
| WO2020114265A1 (en) * | 2018-12-03 | 2020-06-11 | 江苏神马电力股份有限公司 | Power transmission line pipeline and gas insulating line |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072536A (en) * | 1991-11-18 | 1993-05-26 | 株式会社日立制作所 | Gas-insulated switchgear device |
| CN204144856U (en) * | 2014-05-31 | 2015-02-04 | 平顶山电力设计院有限公司 | A kind of gas insulation electric power line |
| CN204517325U (en) * | 2015-03-17 | 2015-07-29 | 江苏神马电力股份有限公司 | A kind of gas-insulated transmission line |
| EP2937958A1 (en) * | 2012-12-21 | 2015-10-28 | Mitsubishi Electric Corporation | Gas insulated electric equipment |
| CN205001705U (en) * | 2015-08-25 | 2016-01-27 | 抚顺加氢炼化设备股份有限公司 | Compound flange seal structure of filling up of ripples tooth of hydrogenation ware |
| JP2016152648A (en) * | 2015-02-16 | 2016-08-22 | 東京電力ホールディングス株式会社 | Gas-insulated switchgear and gas replacement method thereof |
| CN106481891A (en) * | 2016-11-26 | 2017-03-08 | 浙江宏泰构件有限公司 | Seal ring assembly |
-
2017
- 2017-04-22 CN CN201710268208.5A patent/CN106877267B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072536A (en) * | 1991-11-18 | 1993-05-26 | 株式会社日立制作所 | Gas-insulated switchgear device |
| EP2937958A1 (en) * | 2012-12-21 | 2015-10-28 | Mitsubishi Electric Corporation | Gas insulated electric equipment |
| CN204144856U (en) * | 2014-05-31 | 2015-02-04 | 平顶山电力设计院有限公司 | A kind of gas insulation electric power line |
| JP2016152648A (en) * | 2015-02-16 | 2016-08-22 | 東京電力ホールディングス株式会社 | Gas-insulated switchgear and gas replacement method thereof |
| CN204517325U (en) * | 2015-03-17 | 2015-07-29 | 江苏神马电力股份有限公司 | A kind of gas-insulated transmission line |
| CN205001705U (en) * | 2015-08-25 | 2016-01-27 | 抚顺加氢炼化设备股份有限公司 | Compound flange seal structure of filling up of ripples tooth of hydrogenation ware |
| CN106481891A (en) * | 2016-11-26 | 2017-03-08 | 浙江宏泰构件有限公司 | Seal ring assembly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020114265A1 (en) * | 2018-12-03 | 2020-06-11 | 江苏神马电力股份有限公司 | Power transmission line pipeline and gas insulating line |
| CN110650599A (en) * | 2019-09-23 | 2020-01-03 | 深圳市九洲卓能电气有限公司 | Automobile and automobile blind area detection sensor module |
| CN111244878A (en) * | 2020-01-18 | 2020-06-05 | 芜湖明远电力工程咨询设计有限公司 | Gas-insulated metal-enclosed transmission line |
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| Publication number | Publication date |
|---|---|
| CN106877267B (en) | 2018-05-29 |
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