CN108565769A - One kind ± 1100kV direct-current wall bushing installation and repairing methods - Google Patents
One kind ± 1100kV direct-current wall bushing installation and repairing methods Download PDFInfo
- Publication number
- CN108565769A CN108565769A CN201810258755.XA CN201810258755A CN108565769A CN 108565769 A CN108565769 A CN 108565769A CN 201810258755 A CN201810258755 A CN 201810258755A CN 108565769 A CN108565769 A CN 108565769A
- Authority
- CN
- China
- Prior art keywords
- direct
- wall bushing
- current
- current wall
- installation
- 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.)
- Pending
Links
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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
Landscapes
- Load-Engaging Elements For Cranes (AREA)
Abstract
The present invention provides one kind ± 1100kV direct-current wall bushing installation and repairing methods, and the space that this method becomes square using the change of current is turned to direct-current wall bushing haulage vehicle, and haulage vehicle enters the valve Room Rooms Hou Congfa side and is inserted into Indoor DC Field installation.It is needed by the way of adding counterweight from valve Room side to Indoor DC Field side installation direct-current wall bushing.Wall bushing uses the present invention program, can save current conversion station and take up an area about 1.2hm2；Wall bushing is not required to building and increases enabling, does not influence column web frame, is conducive to save construction investment.
Description
Technical field
The present invention relates to direct-current wall bushing installation and repairing fields, more particularly, to one kind ± 1100kV direct-current wall bushings
Installation and repairing method.
Background technology
- Gu Quan ± 1100kV extra-high voltage direct-current transmission engineerings in Changji are to build the highest electric power of voltage class in the world at present
Engineering.With the raising of voltage class and dielectric level, the saturated characteristic of discharging gap is very notable, brings contour size of the unit(s)
Increase substantially.For the key equipment of direct current transportation --- for direct-current wall bushing, size increases particularly evident.±
800kV wall bushing length is 20.6m, and ± 1100kV casing lengths reach 26.2m.Space needed for transport is very big（Turning radius
22m sweeps sky width 10m）.
± 1100kV current conversion stations use Indoor DC Field scheme, and the wall bushing in the valve Room to Indoor DC Field is arranged in family
It is interior.According to current technology scheme, direct-current wall bushing is inserted by DC fields side valve Room side and is installed, needs first to transport casing
To DC fields side, Indoor DC Field installation is then transported.The program has the following disadvantages：
1, it needs wall bushing being transported to Indoor DC Field side, since ± 1100kV wall bushing sizes are larger, needs to ensure
Its transport space, the additional current conversion station that increases take up an area.
2, it needs to open the door in Indoor DC Field building and increase, so that wall bushing haulage vehicle enters, to influence to build
Reasonability is arranged in buildings column net, increases building cost.
Invention content
It is an object of the invention to：In view of the problems of the existing technology, one kind ± 1100kV direct-current wall bushings are provided
Installation and repairing method solves additionally increase current conversion station occupation of land using existing mount scheme, and need to be by Indoor DC Field building
Open the door the problem of increasing.
The goal of the invention of the present invention is achieved through the following technical solutions：
One kind ± 1100kV direct-current wall bushing installation and repairing methods, this method include：The haulage vehicle of direct-current wall bushing exists
The change of current becomes square and completes right-angle steering, and the face valve Room is overhauled gate and entered；Crane is connected to lifting frame suspension centre with 1 suspender belt,
Pass through the suspension centre on chain block junction chamber inner flange with 1 suspender belt again；Chain block is installed to from indoor side flange
On hoist lifting hook, tension chain cucurbit simultaneously starts simultaneously at handling direct-current wall bushing until counterweight is in 0.5 meter from the ground；Continue
Lifting operation is stepped up weight mass until chain block does not stress, then chain block is removed；When installation, crane is slow
Direct-current wall bushing is slowly inserted into hole by the corresponding height that direct-current wall bushing is moved to hole on wall, when direct current is worn
Stop being inserted into when wall sleeve mounting flange will be contacted with fixed frame；All mounting holes are aligned, fixed bottom margin is first penetrated
Bolt, be next threaded into the bolt of fixed top edge, be then symmetrically installed remaining bolt；Direct-current wall bushing fixing bolt is tight
After Gu, counterweight and hoist rope, lifting frame are torn open successively.
As further technical solution, when valve Room side lifts, with focusing on valve Room side, after adding counterweight, direct current set through walls
Pipe entirety center of gravity shifts, and suspension centre should be conllinear with center of gravity.
As further technical solution, two used in composite insulator PE plastic films of direct-current wall bushing are protected,
And provisional protection is carried out with foam cardboard in casing installation hole edge；Wait for that direct-current wall bushing silicones group portion fully enters mounting hole
Afterwards, then remove casing installation hole edge foam cardboard；After direct-current wall bushing is mounted to a wall and before it will be powered,
Remove protective film.
As further technical solution, before chain block dismounting, keep entire direct current through walls by adjusting chain block
Casing keeps horizontal in hoisting process；After removing chain block dismounting, entire direct-current wall bushing still needs to holding level.
As further technical solution, before direct-current wall bushing lifting, rupture pressure disc should be downward.
As further technical solution, in hoisting process, certain interval is kept between direct-current wall bushing and fixed frame.
Compared with prior art, the present invention has the following advantages：
1, the transport of wall bushing can utilize the broad space on change of current change square before the valve Room（The broad space on the square is other
Factor is determined, is not required to expand for transport wall bushing）, it is not required to increase the occupation of land of current conversion station, current conversion station can be saved and taken up an area about
1.2hm²。
2, since the change of current becomes, square is sufficiently large, and the haulage vehicle of direct-current wall bushing can become square in the change of current and complete right angle
It turns to, the face valve Room is overhauled gate and entered, and the original gate in the valve Room is not required to increase, and does not influence column web frame, is conducive to save civil engineering
Investment.
Description of the drawings
Fig. 1 is direct-current wall bushing mount scheme schematic diagram；
Fig. 2 is that direct-current wall bushing adds counterweight schematic diagram.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
The present invention proposes that one kind ± 1100kV direct-current wall bushing installation and repairing methods, this method become the space on square using the change of current
It turns to direct-current wall bushing haulage vehicle, haulage vehicle enters the valve Room Rooms Hou Congfa side and is inserted into Indoor DC Field installation.The party
Method process is specific as follows：
1, the selection of crane with it is in place
According to the height that direct-current wall bushing is installed, the weight of direct-current wall bushing selects suitable position, and crane is leading
In place.
2, the in place and open box to check of casing transit vehicle
Scheme enters the valve Room to direct-current wall bushing as shown in Figure 1.Direct-current wall bushing is import equipment, is avoided due to attachment lacks
DC bushing installation progress and quality are influenced, attachment is carried out before direct-current wall bushing is installed and checks and carries out open case record.
3, the selection of suspension centre
（1）Select 1 6m（10t）Crane is connected to lifting frame suspension centre by suspender belt, then with 1 12m（10t）Suspender belt passes through chain
Suspension centre on cucurbit junction chamber inner flange, to adjust casing mass unbalance.Carefully sling, it is long by adjusting chain block
Sleeve angle is adjusted in degree, and adjustment inclination angle is about 0 °.Note：When valve Room side lifts, with valve Room side is focused on, add counterweight
Rear sleeve entirety center of gravity shifts, and suspension centre should be conllinear with center of gravity（Attached drawing 2）；
（2）Two used in composite insulator PE plastic films are prevented in casing installation hole edge with foam cardboard temporarily to protect
Shield.Remove the foam cardboard of casing installation hole edge again after casing silicones group portion fully enters.Casing it is mounted to a wall it
Afterwards and before it will be powered, protective film is just removed.In handling casing, forbid rope being wrapped in silicones skirt section（I.e.
Forbid to use " tying up " handling method）.It otherwise, can badly damaged composite insulator.
4, casing lifts
（1）Before starting lifting operation, it is necessary to chain block is installed on hoist lifting hook from indoor side flange.This device
Purpose be the mass unbalance controlled towards indoor, and level slings entire casing.Handling program later is：It is tensioned chain
Cucurbit simultaneously starts simultaneously at handling casing.Chain block is adjusted, until entire casing keeps horizontal.Continue sleeve hoisting operation,
Until counterweight is in 0.5 meter from the ground.（Notice that direction, rupture pressure disc should be downward before sleeve hoisting）.
（2）Continue lifting operation, is stepped up weight mass until chain block does not stress, then removed, and cover
Pipe keeps its angle of inclination at away from ground safe distance（0º）Position.
（3）Casing should slowly be moved to the corresponding height of hole on wall by crane when installation, it is slowly inwardly inserted into, outdoor
Staff is coordinated using crane operation platform in outside, while office work personnel pass through casing indoors using hoistable platform
Fixed frame hole observation casing enters situation, and certain interval is kept between casing and fixed frame, casing is forbidden to shake collision.
（4）Entire hoisting process is assumed unified command of by hoisting commanding, other operating personnels must be fitted close simultaneously in time simultaneously
Real time information is provided.Casing moving process should slowly, steadily.
（5）Stop being inserted into when casing mounting flange and fixed frame will contact, all mounting holes are aligned, indoor and outdoor is applied
Worker person coordinates the bolt for first penetrating fixed bottom margin, is next threaded into the bolt of fixed top edge, is then symmetrically installed it
Remaining bolt.
（6）After casing fixing bolt fastens, counterweight and hoist rope, lifting frame are torn open successively.
5, casing grading shield is installed
For casing after mounting hole fixation, installation personnel carries out casing grading shield installation by means of indoor lifting platform or operation vehicle.
6, other installation and debugging work
When ± 1100kV casings are installed, goes backward through the valve Room using the broad space turn on change of current change square and enters Indoor DC Field,
Path is opposite when dismounting.Attached drawing 1 illustrates casing transhipment mount scheme.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is noted that all
All any modification, equivalent and improvement made by within the spirit and principles in the present invention etc. should be included in the guarantor of the present invention
Within the scope of shield.
Claims (6)
1. one kind ± 1100kV direct-current wall bushing installation and repairing methods, which is characterized in that this method includes：
The haulage vehicle of direct-current wall bushing becomes square in the change of current and completes right-angle steering, and the face valve Room is overhauled gate and entered；
Crane is connected to lifting frame suspension centre with 1 suspender belt, then is passed through on chain block junction chamber inner flange with 1 suspender belt
Suspension centre；
Chain block is installed on hoist lifting hook from indoor side flange, tension chain cucurbit simultaneously starts simultaneously at handling direct current and wears
Wall sleeve is until counterweight is in 0.5 meter from the ground；
Continue lifting operation, is stepped up weight mass until chain block does not stress, then chain block is removed；
When installation, direct-current wall bushing is slowly moved to the corresponding height of hole on wall by crane, by direct-current wall bushing slowly to
It is inserted into hole, stops being inserted into when direct-current wall bushing mounting flange will be contacted with fixed frame；
All mounting holes are aligned, the bolt of fixed bottom margin is first penetrated, are next threaded into the bolt of fixed top edge, then
It is symmetrically installed remaining bolt；
After direct-current wall bushing fixing bolt fastens, counterweight and hoist rope, lifting frame are torn open successively.
2. one kind ± 1100kV direct-current wall bushing installation and repairing methods according to claim 1, which is characterized in that in valve
When Room side lifts, with valve Room side is focused on, after adding counterweight, the transfer of direct-current wall bushing entirety center of gravity, suspension centre should be conllinear with center of gravity.
3. one kind ± 1100kV direct-current wall bushing installation and repairing methods according to claim 1, which is characterized in that direct current
Two used in composite insulator PE plastic films of wall bushing are carried out temporarily in casing installation hole edge with foam cardboard to protect
Protection；After direct-current wall bushing silicones group portion fully enters mounting hole, then remove the foam cardboard of casing installation hole edge；
After direct-current wall bushing is mounted to a wall and before it will be powered, protective film is removed.
4. one kind ± 1100kV direct-current wall bushing installation and repairing methods according to claim 1, which is characterized in that in chain
Before cucurbit is removed, keep the holding in hoisting process of entire direct-current wall bushing horizontal by adjusting chain block；Remove chain
After cucurbit is removed, entire direct-current wall bushing still needs to holding level.
5. one kind ± 1100kV direct-current wall bushing installation and repairing methods according to claim 1, which is characterized in that direct current
Before wall bushing lifting, rupture pressure disc should be downward.
6. one kind ± 1100kV direct-current wall bushing installation and repairing methods according to claim 1, which is characterized in that lifting
In the process, certain interval is kept between direct-current wall bushing and fixed frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810258755.XA CN108565769A (en) | 2018-03-27 | 2018-03-27 | One kind ± 1100kV direct-current wall bushing installation and repairing methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810258755.XA CN108565769A (en) | 2018-03-27 | 2018-03-27 | One kind ± 1100kV direct-current wall bushing installation and repairing methods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108565769A true CN108565769A (en) | 2018-09-21 |
Family
ID=63533504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810258755.XA Pending CN108565769A (en) | 2018-03-27 | 2018-03-27 | One kind ± 1100kV direct-current wall bushing installation and repairing methods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108565769A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421532A (en) * | 2020-11-09 | 2021-02-26 | 国网电力科学研究院武汉南瑞有限责任公司 | Installation method of million-volt dry-type wall bushing |
| CN113211403A (en) * | 2021-04-19 | 2021-08-06 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Intelligent dismounting method for high-voltage bushing in direct-current valve hall |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206673517U (en) * | 2017-04-11 | 2017-11-24 | 内蒙古送变电有限责任公司 | A kind of New type through-wall sleeve mounting structure |
-
2018
- 2018-03-27 CN CN201810258755.XA patent/CN108565769A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206673517U (en) * | 2017-04-11 | 2017-11-24 | 内蒙古送变电有限责任公司 | A kind of New type through-wall sleeve mounting structure |
Non-Patent Citations (3)
| Title |
|---|
| 刘燚冲 等: "特高压换流站直流穿墙套管安装工艺探研", 《湖南电力》 * |
| 孙利朋 等: "1000kV交直流环氧树脂胶浸纸绝缘穿墙套管现场安装工艺", 《湖南电力》 * |
| 陈力 等: "奉贤换流站直流800 kV穿墙套管的安装工艺", 《电力建设》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421532A (en) * | 2020-11-09 | 2021-02-26 | 国网电力科学研究院武汉南瑞有限责任公司 | Installation method of million-volt dry-type wall bushing |
| CN112421532B (en) * | 2020-11-09 | 2021-11-23 | 国网电力科学研究院武汉南瑞有限责任公司 | Installation method of million-volt dry-type wall bushing |
| CN113211403A (en) * | 2021-04-19 | 2021-08-06 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Intelligent dismounting method for high-voltage bushing in direct-current valve hall |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101592460B1 (en) | automatic emergency elevator which is possible long distance elevating for Operational deployment facility | |
| CN103534483B (en) | For entering equipment and the correlation technique in the cabin of wind turbine | |
| CN108565769A (en) | One kind ± 1100kV direct-current wall bushing installation and repairing methods | |
| CN208500121U (en) | A kind of splicing apparatus | |
| CN105692380A (en) | Overhaul protection system for marine traction drive lift | |
| JP2003156594A (en) | Radioactive material containing vessel carriage equipment, carriage method and storage method for the vessel | |
| CN109713600B (en) | Replacement construction method for rectifier unit of subway power supply system | |
| CN207884256U (en) | Cable duct gas firebreak device | |
| CN104627849A (en) | Hoisting equipment and hoisting method for hoisting inner courtyard pipeline | |
| CN211596994U (en) | Protection device for repairing inspection well for traffic | |
| CN212154622U (en) | Outer wall plate mounting ladder stand for steel structure factory building | |
| KR101581771B1 (en) | Wind power generator maintaing system | |
| CN212249107U (en) | Liftable attached scaffold | |
| CN107190991A (en) | The special-shaped curtain wall vertical lifting system of glass plate | |
| CN111794282A (en) | Mounting method of immersed tube end sealing door | |
| CN207627756U (en) | A kind of escaping from high building on fire intelligent apparatus | |
| CN206858024U (en) | A kind of derrick crane wireless image transmission supervising device | |
| CN205973501U (en) | Portal frame control system | |
| CN112240269A (en) | Wind turbine and method for constructing or repairing a wind turbine | |
| CN206789958U (en) | A kind of portable electric device | |
| CN110492391A (en) | Jacking type full protection crossing frame and its building method | |
| CN109698482A (en) | A kind of suspension type monorail traffic box beam side light cable-laying gear and method | |
| KR102392381B1 (en) | Moving platform device and facility including the same | |
| CN114016873B (en) | Construction method for civil air defense threshold sill pouring and civil air defense door installation | |
| CN204050729U (en) | A kind of skyscraper stairwell plugging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180921 |
|
| WD01 | Invention patent application deemed withdrawn after publication |