CN206211277U - A kind of three-phase coenosarc rigid gas insulated power circuit - Google Patents
A kind of three-phase coenosarc rigid gas insulated power circuit Download PDFInfo
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- CN206211277U CN206211277U CN201621359283.XU CN201621359283U CN206211277U CN 206211277 U CN206211277 U CN 206211277U CN 201621359283 U CN201621359283 U CN 201621359283U CN 206211277 U CN206211277 U CN 206211277U
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Abstract
The utility model is related to a kind of three-phase coenosarc rigid gas insulated power circuit, including n straight section unit (2), housing and three piece straight conductors being arranged on enclosure interior of described each the straight section unit (2) including inside filling insulating gas, n >=1, the transmission line of electricity is provided with m branch units (1) described branch units includes branch's housing (12) and three branch conductors in branch units, m >=1.The utility model is simple and reliable for structure, component standard, is applicable various lines design, flexible arrangement.Adjusted according to different installation environments and arranged, ease of assembly construction, compact conformation occupies little space.
Description
Technical field
The utility model is related to high voltage power transmission technical field, particularly a kind of three-phase coenosarc rigid gas insulated power line
Road.
Background technology
Rigid gas insulated power circuit (GIL), is the insulation with certain pressure by being enclosed in inside metallic conduit
Gas, there is provided the power transmission unit of current channel, and the transmission facility that other insulation assemblies are constituted.
GIL has reliability high, long service life and transmittability as Large Copacity, high voltage, long distance transmission line
Strong the advantages of.GIL is a kind of enclosed construction of metal rigidity, smaller by ambient atmosphere and ambient influnence, also without external magnetic field
Influence.Inside uses SF6Or SF6And N2Mixed gas or compressed air are used as dielectric, and good insulation preformance, dielectric loss is low,
Without problem of aging, without combustibility, reliability is high.The average life of GIL is more than 50 years.The transimission power of current GIL
Up to 4GW, ability to transmit electricity is strong.Advantageously reduce transmitting loop quantity.Using compact enclosed construction, take up an area more than overhead transmission line
It is small.Arrangement flexibly, can simplify system wiring, improve whole system power supply reliability.
GIL can usually run into various deployment scenarios in engineering design：Corner is more, addition current branch, installs experiment additional and sets
Standby or introduce other accessory detection units and need to increase interface, transmission line of electricity is twice by a tap, uses three-phase coenosarc knot
Structure and trolley line, GIS device, transformer equipment and cable butting, many technical barriers such as long transmission line thermal deformation is big.In circuit
The less corridor position in space, rigid gas insulated power circuit (GIL) takes up room greatly.
The change of GIL generatrix directions needs corner segments to complete.Current GIL is for non-90 degree right-angled bend casting or two
Individual right angle is assembled to be realized.Using casting elbow, and two right angle assembly, in the line cannot in absorption equipment operation heat expansion it is cold
The deformation that contracting is produced, need to increase special thermal compensation device, and structure is more complicated.And thermal compensation device investment is big, short life is reliable
Property is poor, has a strong impact on the safe operation of whole bus.
Utility model content
In order to solve the above problems, reduces cost, raising line arrangement flexibility, the utility model proposes a kind of more single
The three-phase coenosarc rigid gas insulated power circuit of unit's combination.Concrete scheme is as follows：
A kind of three-phase coenosarc rigid gas insulated power circuit, including n straight section unit, described each straight section unit include
The housing and three straight conductors for being arranged on enclosure interior of inside filling insulating gas, n >=1, the transmission line of electricity are provided with m point
Branch units described in Zhi Danyuan include branch's housing and three branch conductors in branch units, m >=1, wherein,
Branch's housing includes main casing and three branch road housings being interconnected with main casing, and branch road housing outer end is opened
Mouthful；
The branch conductors include straight conductor and curved conductor；Straight conductor is arranged in main casing, and curved conductor axis is at an angle of
In branch road housing；
The n straight section unit and the m housing of branch units are connected two-by-two by flange, directly leading in each unit
Body or curved conductor are respectively arranged at two ends with contact, and it passes through contact and connects two-by-two.
Further, the branch road housing prolongs the parallel distribution of main casing axial direction.
Further, the branch road housing is distributed on the same section of the radial direction of main casing.
Further, the branch units includes the cover plate on flange.
Further, also it is used to transmission line of electricity is changed direction, b T-shaped unit in power transmission line including a corner units
Current branch is added in road, testing equipment is installed additional or introduces other auxiliary units and c compensating unit is used to compensate transmission of electricity
The expanded by heating change of line linear section is deflected with realizing line build-out, wherein a >=0, b >=0, c >=0, each unit enclosure interior
Filling insulating gas, is connected between the housing of each unit by flange, and the conductor in each unit passes through socket connection.
Further, including airtight insulating supporting, the airtight insulating supporting be arranged on the flange of two neighboring unit or
At the opening of unit, for installing conductor.
In the utility model, flexible corner unit is devised, the corner of angle Selection needs that can be according to needed for circuit
Section angle, designs GIL circuits more flexible.Simultaneously corner units there is larger flexibility, can allow angle change ±
1.5 ° are capable of expanding with heat and contract with cold and other errors for absorption circuit.
The beneficial effects of the utility model are：
1st, the utility model is simple and reliable for structure, component standard, is applicable various lines design, flexible arrangement.According to
Different installation environment adjustment arrangements, ease of assembly construction, compact conformation occupies little space.
2nd, corner units of the present utility model have larger flexibility using grafting soldering set, can permit angle change ± 1.5 °,
The flexible design at turning, can splice the deformation that welding structure realizes low-angle, error and change in absorption circuit by shell
Shape.
3rd, the utility model can reduce flange connection quantity, reduce airtight insulating supporting usage quantity, reduce sealing surface number
Amount, removes thermal compensation device.Leakage probability is reduced, circuit reliability of operation is lifted, construction costs is saved, optimization engineering is applied
Work scheme.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model embodiment 2；
Fig. 2 is the schematic diagram of the utility model embodiment 3；
Fig. 3 is the schematic diagram of utility model embodiment 4；
Fig. 4 is static contact and moving contact grafting schematic diagram；
Fig. 5 is corner units schematic diagram；
Fig. 6 is T-shaped cell schematics；
Fig. 7 is branch units schematic diagram；
Fig. 8 is compensating unit schematic diagram；
Fig. 9 is straight section cell schematics；
The schematic diagram of Figure 10 the utility model embodiment 1.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, it is necessary to explanation is, these
Specific description is to allow those of ordinary skill in the art to be more prone to, clearly understand the utility model, rather than new to this practicality
The limited explanation of type
A kind of three-phase coenosarc rigid gas insulated power circuit, applicable voltage class is 66kV~330kV.
Embodiment 1：
As shown in Figure 10, a kind of three-phase coenosarc rigid gas insulated power circuit, including straight section unit 2 and branch units 1,
Each straight section unit 2 includes the housing and three straight conductors for being arranged on enclosure interior, branch units 1 of internal filling insulating gas
Including branch's housing 12 and three branch conductors in branch units with flange at opening.Straight section unit and branch
The quantity of unit needs to determine can have multiple straight section units and branch units and the ground laid according to transmission line of electricity according to construction
The quantity and distributing order of combination are determined the need for shape or addition port.I.e., it is possible to set n (n >=1) straight section unit and m
Individual (m >=1) branch units, in use, n straight section unit 2 is connected two-by-two with the m housing of branch units 1 by flange.
As shown in figure 9, elementary cell of the straight section unit 2 for three-phase coenosarc rigid gas insulated power circuit, including straight shell
Body 21, straight conductor 22 (Fig. 9 can only see two phase conductors due to angle reason, actually three-phase conductor) and three-phase supports insulative
26.Straight housing uses formed pipe, rolls welded pipe, and helically welded tube, bending welded pipe or agitating friction welded pipe are made.Directly lead
Body is arranged on straight enclosure interior, with adjacent cells conductor grafting.Straight conductor is fixed in straight housing by three-phase supports insulative
Portion, to be fixedly connected or being slidably connected between three-phase supports insulative and straight housing, has two three inside a straight section unit
Phase supports insulative, passes through or bolt between three-phase supports insulative and straight conductor, and welding, crimping is attached.
As shown in fig. 7, branch units 1 include airtight insulating supporting 11, the branch's housing 12 with flange and installed in point
Conductor (Fig. 7 can only see two phase conductors due to angle reason, actually three-phase conductor) in Zhi Danyuan, airtight insulating supporting is installed
On the opening of branch's housing, airtight insulating supporting is connected with conductor.Branch's housing includes main casing and three and main casing body phase
Intercommunicated branch road housing 13, branch road housing outer end opening is angled with main casing, usually 90 °.Branch units is three
Three branch road connection other equipments are separated on phase bus unit.This three branch roads can be connected with single-phase bus, be easy to not
With the experiment of branch road, operation and malfunction elimination, and floor space is greatly reduced, make installation more flexibility and reliability.
Branch conductors in branch units include straight conductor and curved conductor；Straight conductor be arranged on main casing in, curved conductor with
Axis is angled, and the angle and main casing are identical with the axis angle of branch's housing, and usually 90 °, curved conductor is arranged on
In branch road housing.The arrangement of branch road housing can be along the parallel distribution of main casing axial direction, it is also possible to be distributed in main casing radially
Same section on.
Branch units, the equipment such as single-phase GIL, convenient and trolley line, GIS device, transformer are branched into by three-phase coenosarc GIL
Connection.Or be by three-phase coenosarc GIL points：An a time three-phase coenosarc GIL and receipt phase GIL, when without these demands,
Add cover plate for sealing at branch's shell nozzle.
The housing of straight section unit 2 and branch units 1 is connected two-by-two by flange.
As shown in figure 4, the conductor in transmission line of electricity in each unit is respectively arranged at two ends with contact, it passes through contact and connects two-by-two
Connect.Conductor one end is static contact 33, and the moving contact with adjacent cells conductor passes through the grafting of fingertip 31；The other end is moving contact 33 ',
Static contact with adjacent cells conductor passes through the grafting of fingertip 31.
Three-phase coenosarc rigid gas insulated power circuit of the present utility model can also include compensating unit.Compensating unit is used
In the expanded by heating change of compensation transmission line of electricity straightway, realize that line build-out is deflected.As shown in figure 8, compensating unit 4 is arranged on
With the corner of compensated line vertical direction, including 42, two flanged (FLGD) bellowss 41 of middle casing, short flow 43, limit
Bit slice 44 and conductor, the two ends of middle casing 42 fixedly mount a bellows 41 respectively, are installed with the bellows 41
Short flow 43 and banking stop 44.
Three-phase coenosarc rigid gas insulated power circuit of the present utility model can also include corner units.Corner units are used
Change direction in transmission line of electricity is made.As shown in figure 5, corner units 3 include short section housing 34, piece housing long 35 and corner conductor
32, the one end open planar tilt of short section housing 34 or piece housing long 35 is in housing axis, short section housing 34 and piece housing long 35
The plane of the opening for favouring housing axis is adjacent and be fixedly connected, and has the piece housing long and the housing axis of short section housing
Angle；Short section housing 34 and piece housing long 35 are equal diameter, by grafting welding fabrication：By short section housing 34 and piece housing long 35
Grafting is welded into certain angle.The docking site of short section housing 34 and piece housing long 35 carries out round and smooth treatment, makes local electric field strength
Reduce.
Each corner conductor 32 is a conductor of the axis with angle of bend, and it is arranged on short section housing 34 and piece housing long
In 35, the axis bending angle of corner conductor is identical with the housing axis angle of piece housing long and short section housing；Wherein, the length
Fixed insulation support member 36 is provided with piece housing 35 and insulated support 37 is slided, wherein, fixed insulation support member 36 is close to and turns
At angle, the two ends of corner units 3 are provided with flange, are connected with adjacent cells；Corner conductor 32 passes through the He of fixed insulation support member 36
Insulated support 37 is slided to be arranged in short section housing 34 and piece housing long 35.Similarly pacify in one end of each corner conductor 32
Equipped with static contact 33, moving contact 33 ' is installed in its other end, the static contact and moving contact of adjacent cells pass through the grafting of fingertip 31.
Three-phase coenosarc rigid gas insulated power circuit of the present utility model can also include T-shaped unit.T-shaped unit is used for
Current branch is added in transmission line of electricity, testing equipment is installed additional or is introduced other auxiliary units.As shown in fig. 6, T-shaped unit 5
Including T-shaped housing 52 and conductor.T-shaped housing includes upper port 53, left port 54 and right output port 55, and airtight insulating supporting is arranged on
On port, conductor is arranged on airtight insulating supporting.
Airtight insulating supporting is arranged on the flange of two neighboring unit or at the opening of unit, for installing conductor and is protected
Demonstrate,prove the air-tightness of transmission line of electricity.
Each unit need to select different units to combine according to configuration, any amount is combined.That is, the utility model
Three-phase coenosarc rigid gas insulated power circuit, in addition to above-mentioned straight section unit and branch units, a corner can also be included
Unit 3, it is used to making transmission line of electricity to change direction, b T-shaped unit 5, its be used to being added in transmission line of electricity current branch, plus
Dress testing equipment introduces other auxiliary units, and c compensating unit 4, for compensating being heated for transmission line of electricity straightway
Expansion change is deflected with realizing line build-out, wherein a >=0, b >=0, c >=0, each unit enclosure interior filling insulating gas, each list
Connected by flange between the housing of unit, the conductor in each unit passes through socket connection.
Embodiment 2：
As shown in figure 1, a kind of three-phase coenosarc rigid gas insulated power circuit, including straight section unit 2, branch units 1, turn
Angle unit 3, compensating unit 4 and T-shaped unit 5.The right output port 55 of T-shaped unit 5 is connected with one end of compensating unit 4, compensating unit 4
The other end be connected with the short section housing 34 of corner units 3, piece housing long 35 is connected with the one end of straight section unit 2, straight section unit 2
The other end is connected with branch units 3.Each unit enclosure interior fills insulating gas, and the housing of each unit is connected by flange, respectively
Conductor socket connection in unit.
Embodiment 3：
As shown in Fig. 2 a kind of three-phase coenosarc rigid gas insulated power circuit includes two straight section units 2, corner units
3, branch units 1, compensating unit 4 and T-shaped unit 5.One end of compensating unit 4 is connected with left port 54, the other end and corner list
The short section housing 34 of unit 3 is connected, and corner units deflection angle is 120 °, naturally it is also possible to be arranged as required into other angles.
The piece housing long 35 of corner units 3 is sequentially connected two straight section units 2, reconnects branch units 1.The filling insulation of each unit inside
Gas.
Embodiment 4：
As shown in figure 3, a kind of three-phase coenosarc rigid gas insulated power circuit includes four straight section units 2, corner units
3, compensating unit 4 and T-shaped unit 5.The deflection angle of corner units 3 is 90 °.Two straight section units 2 be sequentially connected then with it is T-shaped
The upper port 53 of unit 5 is connected, the left port 54 of compensating unit one end connecting T-shaped unit, and the other end connects the short of corner units 3
Piece housing 34, the piece housing long 35 of corner units is connected with the straight section unit that two are sequentially connected.The filling insulation of each unit inside
Gas, described corner units deflection angle is 90 °.
Three-phase coenosarc rigid gas insulated power circuit of the present utility model, simple and reliable for structure, component standard is applicable many
Plant line design schemes, flexible arrangement.Adjusted according to different installation environments and arranged, ease of assembly construction, compact conformation takes empty
Between it is small.
Claims (6)
1. a kind of three-phase coenosarc rigid gas insulated power circuit, including n straight section unit (2), described each straight section unit (2)
Housing and three straight conductors for being arranged on enclosure interior, n >=1, it is characterised in that described defeated including inside filling insulating gas
Electric line is provided with m branch units (1) described branch units includes branch's housing (12) and three in branch units
Branch conductors, m >=1, wherein,
Branch's housing includes main casing and three branch road housings (13) being interconnected with main casing, outside the branch road housing
End opening；
The branch conductors include straight conductor and curved conductor (14)；The straight conductor is arranged in the main casing, described curved to lead
Body (14) axis is angled to be arranged in the branch road housing；
The housing of the n straight section unit (2) and the m branch units (1) is connected two-by-two by flange, in each unit
Straight conductor or curved conductor be respectively arranged at two ends with contact, it passes through contact and connects two-by-two.
2. three-phase coenosarc rigid gas insulated power circuit according to claim 1, it is characterised in that the branch road housing
Along the parallel distribution of main casing axial direction.
3. three-phase coenosarc rigid gas insulated power circuit according to claim 1, it is characterised in that the branch road housing
It is distributed on the same section of the radial direction of main casing.
4. three-phase coenosarc rigid gas insulated power circuit according to claim 1, it is characterised in that the branch units
Including the cover plate on flange.
5. three-phase coenosarc rigid gas insulated power circuit according to claim 1, it is characterised in that also turn including a
Angle unit (3) changes direction, b T-shaped unit (5) for adding current branch in transmission line of electricity, adding for making transmission line of electricity
Dress testing equipment introduces other auxiliary units and c compensating unit (4) for compensating being heated for transmission line of electricity straightway
Expansion change is deflected with realizing line build-out, wherein a >=0, b >=0, c >=0, each unit enclosure interior filling insulating gas, each list
Connected by flange between the housing of unit, the conductor in each unit passes through socket connection.
6. the three-phase coenosarc rigid gas insulated power circuit according to any one of claim 1-5, it is characterised in that bag
Airtight insulating supporting (11) is included, the airtight insulating supporting is arranged on the flange of two neighboring unit or at the opening of unit,
For installing conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621359283.XU CN206211277U (en) | 2016-12-12 | 2016-12-12 | A kind of three-phase coenosarc rigid gas insulated power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621359283.XU CN206211277U (en) | 2016-12-12 | 2016-12-12 | A kind of three-phase coenosarc rigid gas insulated power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206211277U true CN206211277U (en) | 2017-05-31 |
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ID=58746628
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621359283.XU Active CN206211277U (en) | 2016-12-12 | 2016-12-12 | A kind of three-phase coenosarc rigid gas insulated power circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532439A (en) * | 2016-12-12 | 2017-03-22 | 江苏安靠智能输电工程科技股份有限公司 | Three-phase integrated rigid gas insulated electric transmission line |
| CN108599064A (en) * | 2018-05-21 | 2018-09-28 | 深圳市沃尔核材股份有限公司 | The connection method and connection structure of a kind of wind tower with two tube type bus |
-
2016
- 2016-12-12 CN CN201621359283.XU patent/CN206211277U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532439A (en) * | 2016-12-12 | 2017-03-22 | 江苏安靠智能输电工程科技股份有限公司 | Three-phase integrated rigid gas insulated electric transmission line |
| CN108599064A (en) * | 2018-05-21 | 2018-09-28 | 深圳市沃尔核材股份有限公司 | The connection method and connection structure of a kind of wind tower with two tube type bus |
| CN108599064B (en) * | 2018-05-21 | 2024-01-09 | 深圳市沃尔核材股份有限公司 | Connection method and connection structure of two tubular buses for wind power tower |
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