CN108462101A - Six or three hanging point strain insulator-string replacing options of ± 800 kV UHVDC Transmission Lines - Google Patents
Six or three hanging point strain insulator-string replacing options of ± 800 kV UHVDC Transmission Lines Download PDFInfo
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- CN108462101A CN108462101A CN201810163799.4A CN201810163799A CN108462101A CN 108462101 A CN108462101 A CN 108462101A CN 201810163799 A CN201810163799 A CN 201810163799A CN 108462101 A CN108462101 A CN 108462101A
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- China
- Prior art keywords
- string
- porcelain vase
- resistance
- bracing cable
- mobile jib
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- 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
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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Abstract
The present invention relates to one kind six or three hanging point strain insulator-string replacing options of ± 800 kV UHVDC Transmission Lines, this method is to replace porcelain vase string front end first porcelain vase to be used cooperatively using card after card, resistance to bracing cable enclosed before resistance to bracing cable separate type and 2 hydraulic wire grips；It is used cooperatively using card after card, resistance to bracing cable enclosed before resistance to bracing cable enclosed and 2 hydraulic wire grips when arbitrary a piece of porcelain vase among replacement porcelain vase string；It is used cooperatively using card after card, resistance to bracing cable enclosed before resistance to bracing cable enclosed and 2 hydraulic wire grips when arbitrary a piece of porcelain vase among replacement porcelain vase string；Operating platform used is upper string operation platform or lower string operation platform when replacing porcelain vase string；Method provided by the invention realizes service without power-off, can continual continuous power supply.The operating platform of the present invention is convenient in method implementation process, and porcelain bottle insulators replacement operation is carried out.
Description
Technical field
The invention belongs to power grid and hot line maintenance technical field, more particularly to a kind of ± 800 extra-high straightenings of kV
Six or three hanging point strain insulator-string replacing options of Flow Line.
Background technology
As the important component of national grid extra-high voltage bulk transmission grid, ± 800 kilovolts of " Zha Lute-Qingzhou " is extra-high
Pressure DC transmission engineering is first extra-high voltage electric power Transmission Corridor of east Inner Mongolia.
The power transmission of ± 800 kV UHV transmission line large capacities and conversion.Access power grid that time,
Conclusive influence just is played on the safety of power grid, once electric power accident occurs, power grid will all generated and greatly fluctuates, vibrate
Or even off-the-line.Therefore how to improve power supply reliability, reinforce operation and maintenance technology, using livewire work technology, realization does not have a power failure
Uninterrupted continuous power supply is realized in maintenance, and just becoming must solve the problems, such as.
± 800 kV extra high voltage direct current transmission line insulator chains are long, and porcelain vase weight is big, and insulator chain is more, but event occurs
When barrier, it is desirable that with minimum staffing, minimum power tool is shortest to empty activity duration, minimum labor intensity, peace
Full completion task.Require livewire work method that science, simple and direct, rigorous, tool is wanted to want reasonable for structure, light-weight, operation in this way
Flexibly, conveniently.
Invention content
Technical problem to be solved by the present invention lies in provide a kind of ± 800 kV UHVDC Transmission Lines six or three hanging point
Strain insulator-string replacing options, realize service without power-off, continuous power supply that can not be brief.
To achieve the above object, technical scheme of the present invention includes：
Porcelain vase string front end first porcelain vase is replaced using card and 2 hydraulic line tightenings after card, resistance to bracing cable enclosed before resistance to bracing cable separate type
Device is used cooperatively；Block the rear and front end for being located at porcelain vase to be replaced after card and resistance to bracing cable enclosed before the resistance to bracing cable separate type,
Block before being separately connected resistance to bracing cable separate type and block after resistance to bracing cable enclosed in the both ends of hydraulic wire grip.
Installation method is when replacing porcelain vase string first porcelain vase in front end：Card before resistance to bracing cable separate type is anchored to be replaced
On the triangle of side of wire at porcelain vase is won in succession, card is anchored on the steel cap of the porcelain vase of front end second after resistance to bracing cable enclosed, 2 hydraulic pressure
The front and back fixture of cord holder connection after all fixtures anchor, with the mechanical part of Manual tightening hydraulic wire grip front end, ensures
Both sides are tightened simultaneously, mechanical leading screw be tightened to manual operation it is motionless when, both sides are by hydraulic handle mobile phone hydraulic cylinder, until tool
Intermediate porcelain vase relaxation to be replaced, can reach de- string, drop down onto ground, more renew porcelain vase；The front end is steel tower end, described
Rear end is conductor wire end.
Using card and 2 liquid after card, resistance to bracing cable enclosed before resistance to bracing cable enclosed when arbitrary a piece of porcelain vase among replacement porcelain vase string
Line device is compressed to be used cooperatively；Card and card after resistance to bracing cable enclosed are located at front and back the two of porcelain vase to be replaced before the resistance to bracing cable enclosed
End, the both ends of hydraulic wire grip are separately connected after resistance to bracing cable enclosed blocks before card and resistance to bracing cable enclosed.
Installation method is when replacing arbitrary a piece of porcelain vase among porcelain vase string：Block after card and resistance to bracing cable enclosed before resistance to bracing cable enclosed
Peace is according to " the principle closed fixture of three short four " of card is anchored on the both sides porcelain vase steel cap for needing to change porcelain vase, and porcelain vase to be replaced is located at fixture
Centre after all fixtures anchor, with the mechanical part of Manual tightening hydraulic wire grip front end, ensures that both sides are tightened simultaneously,
Mechanical leading screw be tightened to manual operation it is motionless when, both sides are to be replaced among tool by hydraulic handle mobile phone hydraulic cylinder
Porcelain vase relaxation, de- string can be reached, ground is dropped down onto, more renew porcelain vase；The leading portion is steel tower section, and the rear end is conducting wire
End.
Replace porcelain vase string rear end finally a piece of porcelain vase when using blocking after card, resistance to bracing cable separate type before resistance to bracing cable enclosed and 2
Hydraulic wire grip is used cooperatively；Before the resistance to bracing cable enclosed card and resistance to bracing cable separate type after card be located at porcelain vase to be replaced before
Both ends afterwards, the both ends of hydraulic wire grip are separately connected before resistance to bracing cable enclosed blocks after card and resistance to bracing cable separate type.
Replace porcelain vase string rear end finally a piece of porcelain vase when installation method be：Resistance to bracing cable is anchored at cross-arm where porcelain vase to be replaced
On the triangle of side is won in succession, card is anchored on second porcelain vase steel cap of cross-arm side before resistance to bracing cable enclosed, before 2 hydraulic wire grip connections
Fixture afterwards after all fixtures anchor, with the mechanical part of Manual tightening hydraulic wire grip front end, ensures that both sides are received simultaneously
Tightly, mechanical leading screw be tightened to manual operation it is motionless when, both sides are waited for more by hydraulic handle mobile phone hydraulic cylinder among tool
The porcelain vase relaxation changed, can reach de- string, drop down onto ground, more renew porcelain vase；The leading portion is steel tower section, and the rear end is conducting wire
End.
Further, operating platform used is upper string operation platform or lower string operation platform when replacing porcelain vase string；
The upper string operation platform includes string mobile jibs and the upper string seats being arranged between two upper string mobile jibs on two,
The porcelain vase steel cap of the upper string mobile jib and strain insulator-string connects；Be evenly distributed with string location hole on the upper string mobile jib, it is described on
The quantity of string seat is one or more, and the both ends of the upper string seat are respectively arranged with mutually fits with the upper string location hole
The upper string locating rod matched；
The lower string operation platform include gone here and there under two mobile jib and be arranged under two lower section between string mobile jib lower string it is foot-operated
The longitudinal section of plate, the lower string foot pedal is trapezoidal, the porcelain vase steel cap connection of the lower string mobile jib and strain insulator-string wide at the top and narrow at the bottom；
Lower string location hole is evenly distributed on the lower string mobile jib, the quantity of the lower string foot pedal is one or more, under institute
Going here and there the top at the both ends for stating foot pedal is respectively arranged with lower string fixed pole compatible with the lower string location hole.
Further, the lower string operation platform further include be separately positioned on gone here and there under two mobile jib lower end the support of lower string it is vertical
Bar；The lower string supported rod erecting includes upper pright stanchion and lower upright bar, and the upper end of the upper pright stanchion is fixed on lower string mobile jib, upper pright stanchion
Lower end and the upper end of lower upright bar be connected through a screw thread.
Further, the upper string seat upper and lower ends are provided with string locating rod, the upper string seat left and right ends point
It is not provided with string slot and upper string plate, the upper string slot and upper string plate are adapted.
Further, further include porcelain bottle insulators transmission device；The porcelain bottle insulators transmission device includes being obliquely installed
Transmission mobile jib and the open stand that is slidably arranged on the transmission mobile jib, the higher one end of the transmission mobile jib and porcelain vase steel
Cap connects, and the lower one end of the transmission mobile jib is fixed on the ground by fixing bracket, and the upper end of the open stand passes through
On transmission mobile jib, the lower part of the open stand is provided with inverted U opening for coaster setting；The higher one end of the transmission mobile jib
It is provided with hoisting ring.
Good effect of the present invention is as follows：
The present invention replace monolithic insulator, that is, porcelain vase when, in, three general fixtures of side phase, strain insulator six can be replaced
The arbitrary a piece of porcelain vase in six string porcelain vases in three hanging point strings, reduces the quantity of fixture, mitigates working strength significantly.
The present invention replaces the monolithic insulator i.e. side of porcelain vase by the way of being used cooperatively using strain clamp and closed fixture
Method, kit weight is most light, minimum number.
The porcelain vase position that the operating platform position of implementation process of the present invention can be replaced as needed, reasonable installation, on
Operating personnel are to be sitting on string seat to work when string operation platform is for the china bottle replacement of porcelain vase string above, lower string operation platform
When china bottle replacement for following porcelain vase string, due to spatial position, operating personnel stand on lower string foot pedal, less than porcelain vase string
Highly, easy to operation.In addition, operating platform of the present invention further includes porcelain bottle insulators transmission device, it is replaced for being driven
Porcelain bottle insulators.
Description of the drawings
Fig. 1 is that the present invention replaces the line construction schematic diagram before the porcelain vase of porcelain vase string front end first；
Fig. 2 is the line construction schematic diagram when present invention replaces porcelain vase string first porcelain vase in front end；
Fig. 3 is the portions the A enlarged drawing of Fig. 2；
Fig. 4 is that the present invention replaces the line construction schematic diagram before arbitrary a piece of porcelain vase among porcelain vase string；
Fig. 5 is the line construction schematic diagram when present invention replaces arbitrary a piece of porcelain vase among porcelain vase string；
Fig. 6 is the portions the B enlarged drawing of Fig. 4；
Fig. 7 is the line construction schematic diagram before present invention replacement porcelain vase string rear end finally a piece of porcelain vase；
Fig. 8 be the present invention replace porcelain vase string rear end finally a piece of porcelain vase when line construction schematic diagram；
The portions the C enlarged drawing that Fig. 9 is Fig. 8；
Figure 10 is the structural schematic diagram of the upper string operation platform of the present invention；
Figure 11 is the side structure schematic diagram of the lower string operation platform foot pedal of the present invention；
Figure 12 is the structural schematic diagram of string seat in the present invention；
Figure 13 is the structural schematic diagram of porcelain bottle insulators transmission device of the present invention；
In attached drawing, card, z are waited for after card, f hydraulic wire grips, the resistance to bracing cable encloseds of e after card, the resistance to bracing cable encloseds of e before the resistance to bracing cable separate types of d
Replace porcelain vase, card before the resistance to bracing cable encloseds of j, string mobile jib on a-1, string seat on a-2, string location hole on a-3, string plate, a- on a-4
Gone here and there on 5 slot, string location hole under string foot pedal, b-3 under string mobile jib, b-2 under string locating rod, b-1 on a-6, c-1 transmission mobile jib,
C-2 open stands, c-3 hoisting rings, c-4 fixing brackets.
Specific implementation mode
As shown in figures 1-13, according to right six or the three hanging point strain insulator of ± 800 kV UHVDC Transmission Lines of following methods of the present invention
String is replaced.
Embodiment 1
In the present invention, leading portion is steel tower end, and rear end is conductor wire end.
As shown in Figs. 1-3, it is closed using card d, resistance to bracing cable before resistance to bracing cable separate type when replacing porcelain vase string first porcelain vase in front end
Block e and 2 hydraulic wire grip f after formula to be used cooperatively；Card e distinguishes position after blocking d and resistance to bracing cable enclosed before the resistance to bracing cable separate type
In the rear and front end of porcelain vase z to be replaced, the both ends of hydraulic wire grip f are separately connected card d and resistance to bracing cable before resistance to bracing cable separate type and close
Block e after formula.The porcelain vase z to be replaced blocks e and 2 hydraulic wire grip f of card after d, resistance to bracing cable enclosed before being located at resistance to bracing cable separate type
In the region surrounded." front end " and " rear end " in the present invention is respectively steel tower end and conductor wire end.
Installation method is：The triangle that card d before resistance to bracing cable separate type is anchored to the side of wire at porcelain vase z to be replaced is won in succession
On, d is blocked before resistance to bracing cable separate type and is anchored on the steel cap of the porcelain vase of front end second, fixture before and after 2 hydraulic wire grip f connections,
After all fixtures anchor, with the mechanical part of the front ends Manual tightening hydraulic wire grip f, ensure that both sides are tightened simultaneously, machinery
Leading screw be tightened to manual operation it is motionless when, both sides are by hydraulic handle mobile phone hydraulic cylinder, the porcelain to be replaced among tool
Bottle z relaxations, can reach de- string, drop down onto ground, more renew porcelain vase.
Embodiment 2
As Figure 4-Figure 6, when replacing arbitrary a piece of porcelain vase among porcelain vase string using card j, resistance to bracing cable enclosed before resistance to bracing cable enclosed after
E and 2 hydraulic wire grip f of card is used cooperatively；Block card e after j and resistance to bracing cable enclosed before the resistance to bracing cable enclosed and be located at and waits for more
Change the rear and front end of porcelain vase z, the both ends of hydraulic wire grip f are separately connected before resistance to bracing cable enclosed blocks e after card j and resistance to bracing cable enclosed.
The porcelain vase z to be replaced is located at the region that e and 2 hydraulic wire grip f of card is surrounded after card j, resistance to bracing cable enclosed before resistance to bracing cable enclosed
It is interior.
Installation method is：Card peace is according to " the principle card anchoring of three short four " of card after blocking j and resistance to bracing cable enclosed before resistance to bracing cable enclosed
On the both sides porcelain vase steel cap for needing to change porcelain vase z, porcelain vase z to be replaced is located among fixture, after all fixtures anchor, uses hand
The mechanical part of the dynamic front ends tightening hydraulic wire grip f, ensures that both sides are tightened simultaneously, it is motionless that mechanical leading screw is tightened to manual operation
When, by hydraulic handle mobile phone hydraulic cylinder, the porcelain vase z relaxations to be replaced among tool can reach de- string, fall on both sides
To ground, more renew porcelain vase.
Embodiment 3
As Figure 7-9, replace porcelain vase string rear end finally a piece of porcelain vase when using card j, resistance to bracing cable separate type before resistance to bracing cable enclosed
Block h and 2 hydraulic wire grip f afterwards to be used cooperatively；Block that j, card h is located at and waits for after resistance to bracing cable separate type before the resistance to bracing cable enclosed
Replace the rear and front end of porcelain vase z, the both ends of hydraulic wire grip f are separately connected before resistance to bracing cable enclosed after card j and resistance to bracing cable separate type
Block h.The porcelain vase z- to be replaced is located at before resistance to bracing cable enclosed that h and 2 hydraulic wire grip f of card is surrounded after card j, resistance to bracing cable separate type
Region in.
Installation method is：
On the triangle of cross-arm side is won in succession where card h is anchored at porcelain vase z to be replaced after resistance to bracing cable separate type, block j before resistance to bracing cable enclosed
It is anchored on second porcelain vase steel cap of cross-arm side, fixture before and after 2 hydraulic wire grip f connections, after all fixtures anchor, uses
The mechanical part of the front ends Manual tightening hydraulic wire grip f ensures that both sides are tightened simultaneously, and it is motionless that mechanical leading screw is tightened to manual operation
When, by hydraulic handle mobile phone hydraulic cylinder, the porcelain vase z relaxations to be replaced among tool can reach de- string, fall on both sides
To ground, more renew porcelain vase.
The present invention advantage be：（1）The eight split conductor direct current strain insulator of ± 800 kV extreme high voltages of research object of the present invention
Circuit, its six-multiple conductor different from the past, conducting wire JL1/G2A-1250/100, to mechanical strength, insulation performance, electric durability
The requirement of energy is all extraordinary.
（2）The present invention replaces in the method for monolithic insulator, in, the strain insulator separate type fixture that side phase three is general,
This set fixture can replace the arbitrary a piece of porcelain vase in six string porcelain vases in six or three hanging point string of strain insulator, reduce the quantity of fixture,
Mitigate working strength significantly.
（3）The side of monolithic insulator is replaced in extra high voltage line in such a way that strain clamp and closed fixture are used cooperatively
Method, kit weight is most light, minimum number.
As shown in figures 10-13, the present invention is replaced applied to six or three hanging point strain insulator-string of ± 800 kV UHVDC Transmission Lines
Operating platform used when porcelain vase selects different platforms according to the position of porcelain vase to be replaced.
The operating platform is upper string operation platform or lower string operation platform；Work-table position
The porcelain vase position replaced as needed, reasonable installation, upper string operation platform when the china bottle replacement of porcelain vase string above for grasping
It is to be sitting on upper string seat a-2 to work as personnel, when lower string operation platform is used for the china bottle replacement of following porcelain vase string, due to space
Position, operating personnel stand on lower string foot pedal b-2, are less than porcelain vase string height, easy to operation.
The upper string operation platform includes two upper string mobile jib a-1 and is arranged between two upper string mobile jib a-1
Upper string seat a-2, it is described it is upper string mobile jib a-1 and strain insulator-string porcelain vase steel cap connect；
The lower string operation platform includes going here and there mobile jib b-1 and to be arranged under two between string mobile jib b-1 under lower section under two
String foot pedal b-2, the longitudinal section of the lower string foot pedal b-2 is trapezoidal, the lower string mobile jib b-1 and strain insulator-string wide at the top and narrow at the bottom
Porcelain vase steel cap connection.
Further, string location hole a-3, the number of the upper string seat a-2 are evenly distributed on the upper string mobile jib a-1
Amount is one or more, and the upper both ends for going here and there seat a-2 are respectively arranged with compatible with the upper string location hole a-3
Upper string locating rod a-6, the upper string locating rod a-6 can select threaded rod, and upper string location hole a-3 is threaded hole, and when use will
It goes here and there in location hole a-3, is fixed in upper string locating rod a-6 precessions.The size of the upper string seat a-2 and two upper mobile jibs of going here and there
The distance between a-1 matches, and upper string seat a-2 is placed exactly between two upper string mobile jib a-1, the both ends of upper string seat a-2
It is connect respectively with two upper string mobile jib a-1.
Further, it is left to be provided with string locating rod a-6, the upper string seat a-2 for the upper string seat a-2 upper and lower ends
Right both ends are respectively arranged with string slot a-5 and upper string plate a-4, and the upper string slot a-5 and upper string plate a-4 be adapted,
When porcelain vase quantity to be replaced is more, multiple upper string seat a-2 can be plugged in together and be then attached to two upper mobile jibs of going here and there
Between a-1, by the upper and lower ends of upper string seat a-2 by upper string locating rod a-6 and upper string location hole a-3 cooperations when grafting, into
Row is fixed, and is then fixed by upper string slot a-5 and upper string plate a-4 cooperations between adjacent upper string seat a-2, upper string
Plate a-4 is plugged into its corresponding upper string slot a-5, convenient and efficient.The upper string seat a-2 is tablet.In use,
The operator for replacing porcelain bottle insulators is sitting on string seat a-2, it may be convenient to touch the porcelain vase string above operator, then
It is replaced, is greatly improved work efficiency.
Lower string location hole b-3 is evenly distributed on the lower string mobile jib b-1, the quantity of the lower string foot pedal b-2 is one
It is a or more than one, go here and there down foot pedal b-2 both ends top be respectively arranged with it is compatible with the lower string location hole b-3
Lower string locating rod.Lower string foot pedal b-2 realizes lower foot of going here and there by the connection between lower string location hole b-3 and lower string locating rod b-4
The fixation of pedal b-2, the lower string locating rod b-4 can be selected from screw rod, be provided with and the screw rod phase on lower string location hole b-3
The screw thread of adaptation or lower string locating rod b-4 are plugged on lower string location hole b-3, in addition, as a result, with reference to upper string seat a-2's
The upper and lower ends of structure, lower string foot pedal b-2 are provided with locating rod, and the bottom both ends of the lower string foot pedal b-2 are respectively set
There are slot and plate, the lower string bottoms foot pedal b-2 narrowest part is allow to link together by slot and plate, can work as and wait for
When replacement porcelain vase is more, the development length for adjusting lower string foot pedal b-2, flexible structure can be extended.
The size of the lower string foot pedal b-2 matches with the distance between string mobile jib b-1 under two, that is, lower foot of going here and there
Pedal b-2 is placed exactly under two between string mobile jib b-1, is fixed by lower string location hole b-3 and lower string locating rod b-4.
Further, the lower string operation platform further includes the lower string branch for being separately positioned on the lower ends string mobile jib b-1 under two
Upright bar is supportted, lower string mobile jib b-1 is used to support.
Further, the lower string supported rod erecting includes upper pright stanchion and lower upright bar, and the upper end of the upper pright stanchion is fixed in down
It goes here and there on mobile jib b-1, the lower end of upper pright stanchion and the upper end of lower upright bar are connected through a screw thread, and specifically, the top of lower upright bar is hollow
Structure, lower upright bar are internally provided with internal thread, and the lower end periphery of upper pright stanchion is provided with external screw thread, the interior spiral shell of the inside of lower upright bar
Line is adapted with the external screw thread of the lower end of upper pright stanchion, the length that upper pright stanchion can inject the inside of lower upright bar by rotating threaded adjusting
Degree.By the degree being threaded between adjusting upper pright stanchion and lower upright bar, the relative altitude of upper pright stanchion and lower upright bar can be adjusted,
The whole height of lower string supported rod erecting can namely be adjusted.
The invention also includes porcelain bottle insulators transmission devices, for being driven replaced porcelain bottle insulators；The porcelain vase
Insulator transmission device includes the transmission mobile jib c-1 being obliquely installed and the opening branch that is slidably arranged on the transmission mobile jib c-1
Frame c-2, the higher one end the transmission mobile jib c-1 are connect with porcelain vase steel cap, and the lower one end the transmission mobile jib c-1 passes through solid
Fixed rack c-4 is fixed on the ground, and the upper end of the open stand c-2 is arranged by coaster on transmission mobile jib c-1, described to open
The lower part of mouth holder c-2 is provided with opening.The opening of the lower parts the open stand c-2 is mutually fitted with porcelain bottle insulators to be replaced
Match, by the porcelain bottle insulators holding of replacement in the lower parts open stand c-2, pushes down on open stand c-2, it can be smoothly by porcelain vase
Insulator conveying is gone down.
Further, the opening of the lower parts the open stand c-2 is inverted U；The higher one end the transmission mobile jib c-1 is set
It is equipped with hoisting ring c-3, for transmission mobile jib c-1 is hung predeterminated position with crane cooperation.
Porcelain bottle insulators transmission device can be used cooperatively with upper string operation platform or lower string operation platform, exhausted convenient for porcelain vase
The replacement of edge.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (10)
1. a kind of six or three hanging point strain insulator-string replacing options of ± 800 kV UHVDC Transmission Lines, it is characterised in that：Replace porcelain vase
Block before using resistance to bracing cable separate type when string first porcelain vase in front end（d）, block after resistance to bracing cable enclosed（e）With 2 hydraulic wire grips（f）
It is used cooperatively；Block before the resistance to bracing cable separate type（d）Block with after resistance to bracing cable enclosed（e）It is located at porcelain vase to be replaced（z）Before
Both ends afterwards, hydraulic wire grip（f）Both ends be separately connected resistance to bracing cable separate type before block（d）Block with after resistance to bracing cable enclosed（e）.
2. six or three hanging point strain insulator-string replacing options of ± 800 kV UHVDC Transmission Lines according to claim 1, special
Sign is：Installation method is：It will block before resistance to bracing cable separate type（d）It is anchored at porcelain vase to be replaced（z）The triangle of the side of wire at place
On winning in succession, block after resistance to bracing cable enclosed（e）It is anchored on the steel cap of the porcelain vase of front end second, 2 hydraulic wire grips（f）Before and after connection
Fixture, after all fixtures anchor, with Manual tightening hydraulic wire grip（f）The mechanical part of front end ensures that both sides are received simultaneously
Tightly, mechanical leading screw be tightened to manual operation it is motionless when, both sides are waited for more by hydraulic handle mobile phone hydraulic cylinder among tool
The porcelain vase changed（z）Relaxation, can reach de- string, drop down onto ground, more renew porcelain vase；The front end is steel tower end, and the rear end is
Conductor wire end.
3. six or three hanging point strain insulator-string replacing options of ± 800 kV UHVDC Transmission Lines according to claim 1, special
Sign is：Block before using resistance to bracing cable enclosed when replacing arbitrary a piece of porcelain vase among porcelain vase string（j）, block after resistance to bracing cable enclosed（e）With 2
A hydraulic wire grip（f）It is used cooperatively；Block before the resistance to bracing cable enclosed（j）Block with after resistance to bracing cable enclosed（e）It is located at and waits for more
Change porcelain vase（z）Rear and front end, hydraulic wire grip（f）Both ends be separately connected resistance to bracing cable enclosed after block（e）With resistance to bracing cable enclosed
Preceding card（j）.
4. six or three hanging point strain insulator-string replacing options of ± 800 kV UHVDC Transmission Lines according to claim 3, special
Sign is：Installation method is：Block before resistance to bracing cable enclosed（j）Block with after resistance to bracing cable enclosed（e）Peace is according to " principle of three short four " of card is closed
Formula card, which is anchored at, needs to change porcelain vase（z）Both sides porcelain vase steel cap on, porcelain vase to be replaced（z）Among fixture, all fixture anchors
Gu after good, with Manual tightening hydraulic wire grip（f）The mechanical part of front end ensures that both sides are tightened simultaneously, mechanical leading screw tightening
To when being manually operated motionless, both sides are by hydraulic handle mobile phone hydraulic cylinder, the porcelain vase to be replaced among tool（z）Pine
It relaxes, de- string can be reached, ground is dropped down onto, more renew porcelain vase；The leading portion is steel tower section, and the rear end is conductor wire end.
5. six or three hanging point strain insulator-string replacing options of ± 800 kV UHVDC Transmission Lines according to claim 1, special
Sign is：Replace porcelain vase string rear end finally a piece of porcelain vase when using blocking before resistance to bracing cable enclosed（j）, block after resistance to bracing cable separate type（h）
With 2 hydraulic wire grips（f）It is used cooperatively；Block before the resistance to bracing cable enclosed（j）Block with after resistance to bracing cable separate type（h）It is located at
Porcelain vase to be replaced（z）Rear and front end, hydraulic wire grip（f）Both ends be separately connected resistance to bracing cable enclosed before block（j）With resistance to bracing cable
Block after separate type（h）.
6. six or three hanging point strain insulator-string replacing options of ± 800 kV UHVDC Transmission Lines according to claim 5, special
Sign is：Installation method is：Resistance to bracing cable is anchored at porcelain vase to be replaced（z）On the triangle of place cross-arm side is won in succession, resistance to bracing cable enclosed
Preceding card（j）It is anchored on second porcelain vase steel cap of cross-arm side, 2 hydraulic wire grips（f）The front and back fixture of connection, all fixture anchorings
After good, with Manual tightening hydraulic wire grip（f）The mechanical part of front end ensures that both sides are tightened simultaneously, and mechanical leading screw is tightened to
When being manually operated motionless, both sides are by hydraulic handle mobile phone hydraulic cylinder, the porcelain vase to be replaced among tool（z）Relaxation,
De- string can be reached, ground is dropped down onto, more renew porcelain vase；The leading portion is steel tower section, and the rear end is conductor wire end.
7. according to claim 1-6 any six or three hanging point strain insulator-string replacement side of ± 800 kV UHVDC Transmission Lines
Method, it is characterised in that：Operating platform used is upper string operation platform or lower string operation platform when replacing porcelain vase string；
The upper string operation platform includes two upper mobile jibs of going here and there（a-1）And it is arranged in two upper string mobile jibs（a-1）Between
Upper string seat（a-2）, the upper string mobile jib（a-1）It is connect with the porcelain vase steel cap of strain insulator-string；The upper string mobile jib（a-1）It is upper equal
It is even that string location hole is distributed with（a-3）, the upper string seat（a-2）Quantity be one or more, the upper string seat
（a-2）Both ends be respectively arranged with and the upper string location hole（a-3）Compatible upper string locating rod（a-6）；
The lower string operation platform includes going here and there mobile jib under two（b-1）And mobile jib is gone here and there in setting under two（b-1）Between lower section
Lower string foot pedal（b-2）, the lower string foot pedal（b-2）Longitudinal section be trapezoidal, the lower string mobile jib wide at the top and narrow at the bottom（b-
1）It is connect with the porcelain vase steel cap of strain insulator-string；The lower string mobile jib（b-1）On be evenly distributed with lower string location hole（b-3）, under described
String foot pedal（b-2）Quantity be one or more, go here and there state foot pedal down（b-2）The top at both ends be respectively arranged with
With the lower string location hole（b-3）Compatible lower string fixed pole.
8. six or three hanging point strain insulator-string replacing options of ± 800 kV UHVDC Transmission Lines according to claim 7, special
Sign is：The lower string operation platform further includes being separately positioned under two to go here and there mobile jib（b-1）The lower string supported rod erecting of lower end；Institute
It includes upper pright stanchion and lower upright bar to state lower string supported rod erecting, and the upper end of the upper pright stanchion is fixed in lower string mobile jib（b-1）On, upper pright stanchion
Lower end and the upper end of lower upright bar be connected through a screw thread.
9. six or three hanging point strain insulator-string replacing options of ± 800 kV UHVDC Transmission Lines according to claim 7, special
Sign is：The upper string seat（a-2）Upper and lower ends are provided with string locating rod（a-6）, the upper string seat（a-2）Left and right two
End is respectively arranged with string slot（a-5）With upper string plate（a-4）, the upper string slot（a-5）With upper string plate（a-4）Xiang Shi
Match.
10. one kind according to claim 7 six or three hanging point strain insulator-string replacing options of ± 800 kV UHVDC Transmission Lines,
It is characterized in that：It further include porcelain bottle insulators transmission device；The porcelain bottle insulators transmission device includes the transmission being obliquely installed
Mobile jib（c-1）Be slidably arranged in the transmission mobile jib（c-1）On open stand（c-2）, the transmission mobile jib（c-1）It is higher
One end connect with porcelain vase steel cap, the transmission mobile jib（c-1）Lower one end passes through fixing bracket（c-4）It is fixed on ground
On, the open stand（c-2）Upper end by coaster be arranged transmission mobile jib（c-1）On, the open stand（c-2）Under
Portion is provided with inverted U opening；The transmission mobile jib（c-1）Higher one end is provided with hoisting ring (c-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810163799.4A CN108462101B (en) | 2018-02-27 | 2018-02-27 | Six-connection three-hanging-point tension string replacement method for +/-800 kV extra-high voltage direct-current line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810163799.4A CN108462101B (en) | 2018-02-27 | 2018-02-27 | Six-connection three-hanging-point tension string replacement method for +/-800 kV extra-high voltage direct-current line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108462101A true CN108462101A (en) | 2018-08-28 |
| CN108462101B CN108462101B (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810163799.4A Active CN108462101B (en) | 2018-02-27 | 2018-02-27 | Six-connection three-hanging-point tension string replacement method for +/-800 kV extra-high voltage direct-current line |
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| CN (1) | CN108462101B (en) |
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| CN110932168A (en) * | 2019-11-18 | 2020-03-27 | 浙江省送变电工程有限公司 | Method for replacing strain insulator of extra-high voltage direct current full tower |
| CN113871111A (en) * | 2021-09-18 | 2021-12-31 | 国网江苏省电力有限公司建设分公司 | Six-connection six-hanging suspension string for large span and large tonnage |
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| CN113871111A (en) * | 2021-09-18 | 2021-12-31 | 国网江苏省电力有限公司建设分公司 | Six-connection six-hanging suspension string for large span and large tonnage |
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|---|---|
| CN108462101B (en) | 2020-04-24 |
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