CN105591318A - Blocking method of U-shaped net - Google Patents
Blocking method of U-shaped net Download PDFInfo
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- CN105591318A CN105591318A CN201511023550.6A CN201511023550A CN105591318A CN 105591318 A CN105591318 A CN 105591318A CN 201511023550 A CN201511023550 A CN 201511023550A CN 105591318 A CN105591318 A CN 105591318A
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- rope
- netting
- bearing
- bearing rope
- selvage
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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
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
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Abstract
The invention provides a blocking method of a U-shaped net. Each U-shaped network comprises a side surface first netting rope, a side surface second netting rope, a bottom surface first netting rope, and a bottom surface second netting rope, the U-shaped network is built on a supporting rope, and the supporting rope comprises an upper cross-arm first support rope, an upper cross-arm second support rope, a net edge first support rope, a net edge second support rope, and a middle support rope. The method includes: a circulation rope is employed to pull the upper cross-arm first support rope and the upper cross-arm second support rope; the circulation rope is employed to pull the net edge first support rope, the net edge second support rope, and the middle support rope; the side surface first netting rope is arranged between the upper cross-arm first support rope and the net edge first support rope; and the side surface second netting rope is arranged between the upper cross-arm second support rope and the net edge second support rope; and the bottom surface first netting rope is arranged between the net edge first support rope and the middle support rope; and the bottom surface second netting rope is arranged between the net edge second support rope and the middle support rope. According to the method, important facilities below transmission lines can be protected from being damaged by the transmission lines or pulling ropes.
Description
Technical field
The present invention relates to high-voltage transmission equipment technical field, relate in particular to a kind of block method of U-shaped net.
Background technology
Along with the fast development that extra high voltage line is built, in UHV transmission line work progress, often meetTo crossing over the situation of critical facility, and present that spanning height is more and more higher, number of times more and more, workThe features such as condition becomes increasingly complex.
In order to ensure the security of newly-built power line crossing, need to provide a kind of block method, at heightPress in power transmission line process of construction, carry out block and build power transmission line, prevent power transmission line or pull rope broken string,Drop on critical facility, work the mischief.
Summary of the invention
In order to solve prior art, the invention provides a kind of block method of U-shaped net, can prevent heightPress in power transmission line process of construction and occur that wire or pull rope drop to the critical facility of below while breaking situationUpper, thus the safety of guarantee power transmission line below critical facility.
The invention provides a kind of block method of U-shaped net, be applied in high voltage transmission line work progress,Each U-shaped net comprises following three kinds of netting ropes: side the first netting rope, side the second netting rope, the endFace the first netting rope and bottom surface the second netting rope; Described U-shaped net is built on bearing rope, described supportRope comprises: upper cross-arm the first bearing rope, upper cross-arm the second bearing rope, selvage the first bearing rope, selvageThe second bearing rope and middle bearing rope, the method comprises the following steps:
Utilize upper cross-arm the first bearing rope of endless rope traction and upper cross-arm the second bearing rope;
Utilize endless rope traction selvage the first bearing rope, selvage the second bearing rope and middle bearing rope;
Between cross-arm the first bearing rope and selvage the first bearing rope, side the first netting is installed on describedRope, installs side the second netting rope between cross-arm the second bearing rope and selvage the second bearing rope on described;
Described bottom surface the first netting rope is installed between described selvage the first bearing rope and middle bearing rope,Described bottom surface the second netting rope is installed between described selvage the second bearing rope and middle bearing rope.
Preferably, also comprise: interval preset distance is at described selvage the first bearing rope and middle bearing ropeBetween the first supports insulative bar is installed, described in interval preset distance described selvage the second bearing rope and inBetween the second supports insulative bar is installed between bearing rope.
Preferably, described bottom surface the first netting rope arranges one, the second netting of described bottom surface every two metersRope arranges one every two meters.
Preferably, described the first supports insulative bar arranges one, described the second supports insulative every six metersBar arranges one every six meters.
Preferably, described preset distance is six meters.
Preferably, described side the first netting rope arranges one, the second netting of described side every four metersRope arranges one every four meters.
Preferably, before being installed, described side the first netting rope also comprises:
On bearing rope every described, articulate a pull rope, described pull rope is used for drawing described nettingRope.
Compared with prior art, the present invention at least has the following advantages:
The method that the present embodiment provides has been built U-shaped net with side, due to this U below power transmission lineTwo sides and the bottom surface of type net have all formed web frame. Even if power transmission line or pull rope fracture are fallen down,Also be the inside of falling at this U-shaped net, can not fall on the critical facility below power transmission tower. Like this canThe critical facility of protection power transmission line below is not smashed by power transmission line or pull rope, thereby under protection power transmission lineThe critical facility of side.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, below by rightIn embodiment or description of the Prior Art, the accompanying drawing of required use is briefly described, apparently,The accompanying drawing the following describes is only some embodiment that record in the application, for the common skill in this areaArt personnel, are not paying under the prerequisite of creative work, can also obtain it according to these accompanying drawingsIts accompanying drawing.
Fig. 1 is block embodiment of the method one flow chart of U-shaped net provided by the invention;
Fig. 2 is U-shaped block device side view corresponding to method provided by the invention;
Fig. 3 is the front view of U-shaped block device provided by the invention;
Fig. 4 is block embodiment of the method two flow charts of U-shaped net provided by the invention.
Detailed description of the invention
In order to make those skilled in the art person understand better the present invention program, below in conjunction with the present inventionAccompanying drawing in embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention,Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work prerequisiteLower obtained every other embodiment, belongs to the scope of protection of the invention.
Embodiment of the method one:
Referring to Fig. 1, block embodiment of the method one flow chart that this figure is U-shaped net provided by the invention.
The block method of the U-shaped net that the present embodiment provides, is applied in high voltage transmission line work progress,Each U-shaped net comprises following three kinds of netting ropes: side the first netting rope, side the second netting rope, the endFace the first netting rope and bottom surface the second netting rope; Described U-shaped net is built on bearing rope, described supportRope comprises: upper cross-arm the first bearing rope, upper cross-arm the second bearing rope, selvage the first bearing rope, selvageThe second bearing rope and middle bearing rope, the method comprises the following steps:
S101: utilize upper cross-arm the first bearing rope of endless rope traction and upper cross-arm the second bearing rope;
S102: utilize endless rope traction selvage the first bearing rope, selvage the second bearing rope and middle supportRope;
It should be noted that, the two ends of all bearing ropes are fixed on bottom surface by corner block respectively,Described corner block is articulated on the cross-arm of power transmission tower.
S103: between cross-arm the first bearing rope and selvage the first bearing rope, side first is installed on describedNetting rope, installs side second between cross-arm the second bearing rope and selvage the second bearing rope on described and compilesNettle;
S104: described bottom surface first is installed between described selvage the first bearing rope and middle bearing rope and compilesNettle is installed described bottom surface the second netting rope between described selvage the second bearing rope and middle bearing rope.
For convenient understanding method provided by the invention, can be referring to Fig. 2 and Fig. 3, i.e. the present invention carriesThe U-shaped block device corresponding to method of confession.
Be understandable that, what S101-S104 introduced is the build process of a U-shaped net, two phasesBetween adjacent power transmission tower, need to build multiple U-shaped nets, multiple U-shaped nets form U-shaped block device, thisWhen sample just can prevent power transmission line fracture, avoid on the critical facility below power transmission line.
The method that the present embodiment provides has been built U-shaped net with side, due to this U below power transmission lineTwo sides and the bottom surface of type net have all formed web frame. Even if power transmission line or pull rope fracture are fallen down,Also be the inside of falling at this U-shaped net, can not fall on the critical facility below power transmission tower. Like this canThe critical facility of protection power transmission line below is not smashed by power transmission line or pull rope.
The U-shaped net of building in order conveniently to understand the present invention, can be referring to Fig. 2 and Fig. 3.
Referring to Fig. 2, this figure is the side view of U-shaped net corresponding to method provided by the invention.
It should be noted that, U-shaped net provided by the invention is applied on high voltage transmission line, is positioned at twoBetween adjacent power transmission tower. Between two adjacent power transmission towers, comprise two these U-shaped block devices, needBe noted that U-shaped block device comprises multiple U-shaped nets. Power transmission tower left horizontal stretcher pair as shown in Figure 2Answer a U-shaped packaging system 100, U-shaped shown in dotted line is U-shaped net. In like manner, right horizontal stretcher pairA U-shaped block device of answering.
Referring to Fig. 3, it is the front view of U-shaped block device provided by the invention.
The U-shaped block device that the present embodiment provides, is applied in high voltage transmission line work progress, comprisesFive kinds of bearing ropes: upper cross-arm the first bearing rope A1, upper cross-arm the second bearing rope A2, selvage first holdHolder rope B1, selvage the second bearing rope B2 and middle bearing rope B3, also comprise multiple U-shaped nets, eachU-shaped net comprises following three kinds of netting ropes: side the first netting rope C1, side the second netting rope C2,Bottom surface the first netting rope D1 and bottom surface the second netting rope D2;
Described upper cross-arm the first bearing rope A1, upper cross-arm the second bearing rope A2, selvage the first bearing ropeB1, selvage the second bearing rope B2 and middle bearing rope B3 are all connected between two adjacent power transmission towers;Power transmission tower lays respectively at the left and right sides of Fig. 3, and two power transmission towers are not shown in Fig. 3.
The first end of described side the first netting rope C1 connects described upper cross-arm the first bearing rope A1, instituteThe second end of stating side the first netting rope C1 connects described selvage the first bearing rope B1;
The first end of described side the second netting rope C2 connects described upper cross-arm the second bearing rope A2, instituteThe second end of stating side the second netting rope C2 connects described selvage the second bearing rope B2;
The first end of described bottom surface the first netting rope D1 connects described selvage the first bearing rope B1, described inThe second end of bottom surface the first netting rope D1 connects described middle bearing rope B3, the second netting of described bottom surfaceThe first end of rope D2 connects described selvage the second bearing rope B2, described bottom surface the second netting rope D2'sThe second end connects described middle bearing rope B3.
It should be noted that, be only to have illustrated two arrange side by side U-shaped in order conveniently to understand in Fig. 3Net is placed with the U-shaped net shown in multiple Fig. 3 between two power transmission towers, and for example, compile bottom surface firstNettle D1 and bottom surface the second netting rope D2 all arrange one, side the first netting rope C1 every two metersThe second netting rope C2 all arranges one every four meters with side. Be understandable that two D1 intervalsDistance can set as required, the less effect of distance at interval is better, but D1 arrange too closeThe material that collection needs is more, and setting up procedure is also more time-consuming, can between effect and cost, hold concurrentlyTurn round and look at the distance of considering interval. The same D1 of setting principle of D2 and C1, C2, does not repeat them here.
Can find out in conjunction with Fig. 2, this U-shaped block device can prevent in the process of building power transmission line,When power transmission line fracture or pull rope fracture, drop on the critical facility of power transmission tower below. Because this is U-shapedTwo sides and the bottom surface of net arrangement have all formed web frame. Even if power transmission line or pull rope fracture are fallen downComing, is also the inside of falling at this U-shaped packaging system, can not fall on the critical facility below power transmission tower.Can protect like this critical facility of power transmission line below not smashed by power transmission line or pull rope.
Embodiment of the method two:
Referring to Fig. 4, block embodiment of the method two flow charts that this figure is U-shaped net provided by the invention.
The block method of the U-shaped net that the present embodiment provides, S401-S402 respectively with S101-S102 phaseWith, S404-S405 is identical with S103-S104 respectively, does not repeat them here.
S403: also comprised before described side the first netting rope is installed:
On bearing rope every described, articulate a pull rope, described pull rope is used for drawing described nettingRope.
S406: interval preset distance installs between described selvage the first bearing rope and middle bearing ropeOne supports insulative bar, described in interval preset distance described selvage the second bearing rope and middle bearing rope itBetween the second supports insulative bar is installed.
Continue referring to Fig. 3, the described U-shaped net of interval preset distance also comprises: supports insulative bar; ExampleAs, every 6 meters, one group of supports insulative bar is set. One group of supports insulative bar is two. UnderstandableThat the spacing distance of supports insulative bar also can be with reference to the setting principle of D1.
Described supports insulative bar is two, is respectively: the first supports insulative bar E1 and the second supports insulativeBar E2;
The first end of described the first supports insulative bar E1 connects described selvage the first bearing rope, described firstThe second end of supports insulative bar E1 connects described middle bearing rope B3;
The first end of described the second supports insulative bar E2 connects described selvage the second bearing rope, described secondThe second end of supports insulative bar E2 connects described middle bearing rope B3.
In addition, this U-shaped block device, can also comprise: single pole coaster and two bar coasters, in figure notIllustrate;
The first end of described the first supports insulative bar E1 passes through a described single pole pulley suspension in describedSelvage the first bearing rope B1;
The first end of described the second supports insulative bar E2 passes through a described single pole pulley suspension in describedSelvage the second bearing rope B2;
The second end of the second end of described the first supports insulative bar E1 and described the second supports insulative bar E2All by same described pair of bar pulley suspension bearing rope B3 in the middle of described.
The U-shaped block device similar with bearing rope, the present embodiment provides, also comprises following five kinds of danish seinesRope: upper cross-arm the first danish seine rope, upper cross-arm the second danish seine rope, selvage the first danish seine rope, selvage secondDanish seine rope and middle danish seine rope; Danish seine rope is not shown.
Described upper cross-arm the first danish seine rope is articulated in described upper cross-arm the first bearing rope A1, for drawingState the first end of side the first netting rope C1;
Described upper cross-arm the second danish seine rope is articulated in described upper cross-arm the second bearing rope A2, for drawingState the first end of side the second netting rope C2;
Described selvage the first danish seine rope is articulated in described selvage the first bearing rope B1, for drawing the described endThe first end of face the first netting rope D1;
Described selvage the second danish seine rope is articulated in described selvage the second bearing rope B2, for drawing the described endThe first end of face the second netting rope D2;
In the middle of described, danish seine rope is articulated in described middle bearing rope, for drawing the first netting of described bottom surfaceRope the second end of D1 and the second end of bottom surface the second netting rope D2 move on described middle bearing rope.
The above, be only preferred embodiment of the present invention, not the present invention done any pro formaRestriction. Although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention. AnyThose of ordinary skill in the art, not departing from technical solution of the present invention scope situation, can utilize above-mentionedThe method and the technology contents that disclose are made many possible variations and modification to technical solution of the present invention, or amendmentFor the equivalent embodiment of equivalent variations. Therefore, every content that does not depart from technical solution of the present invention, according to thisThe technical spirit of invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs toIn the scope of technical solution of the present invention protection.
Claims (7)
1. a block method for U-shaped net, is characterized in that, is applied to high voltage transmission line work progressIn, each U-shaped net comprises following three kinds of netting ropes: side the first netting rope, side the second netting rope,Bottom surface the first netting rope and bottom surface the second netting rope; Described U-shaped net is built on bearing rope, described in holdHolder rope comprises: upper cross-arm the first bearing rope, upper cross-arm the second bearing rope, selvage the first bearing rope, netLimit the second bearing rope and middle bearing rope, the method comprises the following steps:
Utilize upper cross-arm the first bearing rope of endless rope traction and upper cross-arm the second bearing rope;
Utilize endless rope traction selvage the first bearing rope, selvage the second bearing rope and middle bearing rope;
Between cross-arm the first bearing rope and selvage the first bearing rope, side the first netting is installed on describedRope, installs side the second netting rope between cross-arm the second bearing rope and selvage the second bearing rope on described;
Described bottom surface the first netting rope is installed between described selvage the first bearing rope and middle bearing rope,Described bottom surface the second netting rope is installed between described selvage the second bearing rope and middle bearing rope.
2. the block method of U-shaped net according to claim 1, is characterized in that, also comprises:Interval preset distance is installed the first supports insulative between described selvage the first bearing rope and middle bearing ropeBar, preset distance installs second between described selvage the second bearing rope and middle bearing rope described in intervalSupports insulative bar.
3. the block method of U-shaped net according to claim 2, is characterized in that, described bottom surfaceThe first netting rope arranges one every two meters, and described bottom surface the second netting rope arranges one every two meters.
4. the block method of U-shaped net according to claim 2, is characterized in that, described firstSupports insulative bar arranges one every six meters, and described the second supports insulative bar arranges one every six meters.
5. the block method of U-shaped net according to claim 3, is characterized in that, described predeterminedDistance is six meters.
6. the block method of U-shaped net according to claim 1, is characterized in that, described sideThe first netting rope arranges one every four meters, and described side the second netting rope arranges one every four meters.
7. the block method of U-shaped net according to claim 1, is characterized in that, institute is being installedBefore stating side the first netting rope, also comprise:
On bearing rope every described, articulate a pull rope, described pull rope is used for drawing described nettingRope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511023550.6A CN105591318B (en) | 2015-12-30 | 2015-12-30 | A kind of block method of U-shaped net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511023550.6A CN105591318B (en) | 2015-12-30 | 2015-12-30 | A kind of block method of U-shaped net |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105591318A true CN105591318A (en) | 2016-05-18 |
| CN105591318B CN105591318B (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511023550.6A Active CN105591318B (en) | 2015-12-30 | 2015-12-30 | A kind of block method of U-shaped net |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111181066A (en) * | 2020-01-20 | 2020-05-19 | 广东电网能源发展有限公司 | Construction method of net sealing protection device of three-phase two-split conductor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201315444Y (en) * | 2008-11-20 | 2009-09-23 | 四川电力送变电建设公司 | Suspended cable basket blocking net charged crossing support |
| CN103236656A (en) * | 2013-04-08 | 2013-08-07 | 国家电网公司 | Column suspension type crossing structure and operating method thereof |
| CN203645249U (en) * | 2014-01-10 | 2014-06-11 | 葛洲坝集团电力有限责任公司 | Hook-net-plane-type charged crossing device |
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2015
- 2015-12-30 CN CN201511023550.6A patent/CN105591318B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201315444Y (en) * | 2008-11-20 | 2009-09-23 | 四川电力送变电建设公司 | Suspended cable basket blocking net charged crossing support |
| CN103236656A (en) * | 2013-04-08 | 2013-08-07 | 国家电网公司 | Column suspension type crossing structure and operating method thereof |
| CN203645249U (en) * | 2014-01-10 | 2014-06-11 | 葛洲坝集团电力有限责任公司 | Hook-net-plane-type charged crossing device |
Non-Patent Citations (1)
| Title |
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| 国家电网公司基建部组编: "《国家电网公司输变电工程典型施工方法》", 28 February 2011 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111181066A (en) * | 2020-01-20 | 2020-05-19 | 广东电网能源发展有限公司 | Construction method of net sealing protection device of three-phase two-split conductor |
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| Publication number | Publication date |
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| CN105591318B (en) | 2018-04-03 |
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