CN104961044A - Method for installing or removing high voltage bushing by using C-shaped hoseclamp cross binding strap - Google Patents

Method for installing or removing high voltage bushing by using C-shaped hoseclamp cross binding strap Download PDF

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Publication number
CN104961044A
CN104961044A CN201510287371.7A CN201510287371A CN104961044A CN 104961044 A CN104961044 A CN 104961044A CN 201510287371 A CN201510287371 A CN 201510287371A CN 104961044 A CN104961044 A CN 104961044A
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CN
China
Prior art keywords
bushing
suspender belt
main
larynx hoop
riserses
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CN201510287371.7A
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Chinese (zh)
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CN104961044B (en
Inventor
魏忠明
陈旻
李玉玺
方大宇
严峰
魏欣
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YUNNAN POWER TANSMISSION-SUBSTATION ENGINEERING CORP
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YUNNAN POWER TANSMISSION-SUBSTATION ENGINEERING CORP
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Priority to CN201510287371.7A priority Critical patent/CN104961044B/en
Publication of CN104961044A publication Critical patent/CN104961044A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/12Slings comprising chains, wires, ropes, or bands; Nets
    • B66C1/18Band-type slings

Abstract

The invention relates to a method for installing or removing a high voltage bushing by using a C-shaped hoseclamp cross binding strap, wherein the C-shaped hoseclamp cross binding strap comprises two main straps (1) having the same length, an annular auxiliary strap (2) and a hoseclamp strap (3) capable of being bent into a C shape, both ends of the two main straps (1) are respectively provided with a tool U-shaped ring (4) and a hanging ring (5), and a closed ring belt is folded and twisted and then is bent to form the hoseclamp strap (3). According to the present invention, with the use of the C-shaped hoseclamp cross binding strap to install or remove the high voltage bushing, it can be ensured that the main straps and the hoseclamp strap can closely attached to the high voltage bushing without displacement production, the repeated adjusting during the lifting process is not required, and the work is efficient and safe.

Description

C type larynx hoop intersection binding suspender belt is used to install or remove the method for bushing
Technical field
The present invention relates to electric power construction field use suspender belt to install or remove bushing technical field.
Background technology
Bushing is the peculiar equipment of one of electric system, and it for boundary, is divided into the sleeve pipe atmospheric side and bushing installation private side that expose with bushing flange.Bushing is installed or is removed hoisting process and all requires to keep plumbness, and the nylon sling making binding lift by crane bushing infinitely to approach with casing centerline at stressed CB and overlaps, otherwise may injure apparatus body.
Nylon sling is used to a kind of suspender installing or remove bushing, and it is on-the-spot that it is widely used in power construction work production.The bushing such as converter power transformer, AC transformer, HGIS, GIS and GIL, when installing or remove, after need being first connected and fixed with nylon sling, the U-shaped ring of instrument and bushing, slowly lifts by crane with elevator machinery.During dismounting, bushing is made to be adjusted to horizontality by plumbness.During installation, be adjusted to plumbness by horizontality.
For installation high-voltage sleeve pipe, as shown in Figure 1, concrete steps are as follows for existing construction method:
(1) with a pair instrument U-shaped ring A, one secondary main risers B is connected respectively with two special suspension ring C that bushing atmospheric side is radially arranged symmetrically with.(2) axially strain a main risers separately respectively by two people along the bushing of horizontal positioned, make two main riserses be 180 ° and be symmetrically distributed in bushing atmospheric side both sides, and be parallel to bushing line of centers.(3) from bushing about 1/4 height and position from top to bottom, with around waist hoop suspender belt D main risers and bushing are tied together, and keep two main riserses to be that 180 ° of symmetric positions are positioned at bushing both sides, with manpower, waist hoop suspender belt tail rope is fastened knot D1 and strained.(4) two main riserses behind location are hooked on crane main hook.(5) fasten at bushing device interior side and tail end near butt flange place with auxiliary suspender belt E ring, and be hooked on the little hook of crane.(6) commander's crane adjustment main hook, little hook slowly rise to differing heights, make bushing unsettled gradually and are slowly adjusted to erectility, can start the erection work of bushing.Adopt said method, because waist hoop suspender belt tail rope fastens knot with manpower, after each suspender belt is stressed, there is following problem: (1) waist hoop suspender belt knot has the danger of scattering.(2), in lifting process, two main riserses are difficult to remain and do not produce displacement and be symmetrically distributed in bushing both sides in 180 °.Because the waist hoop suspender belt of manpower system is after crane tightens up, waist hoop suspender belt knot will be tightened up further, waist hoop suspender belt around location main risers is increased, and then make to be that 180 ° of two main riserses be arranged symmetrically with are to the displacement of bushing end face originally, depart from cannula center axis, namely the suspender belt line of centers after stressed departs from casing centerline, must repeated multiple times adjustment in therefore lifting process, just can make the plumbness that bushing reaches desirable.Not only there is device security hidden danger, also cannot increase work efficiency.
To remove bushing, concrete construction method is as follows: two main riserses are hooked on crane main hook by (1).(2) commander's adjustment crane makes main hook center overlap with bushing line of centers.(3) slowly put down the main risers on main hook, and with a pair U-shaped ring of instrument, radially symmetrically arranged to two main riserses and bushing atmospheric side two special suspension ring are connected and stretching main risers respectively.(4) from bushing about 1/4 height and position from top to bottom, with around waist hoop suspender belt main risers and bushing are tied together, and keep two main riserses to be that 180 ° of symmetric positions are positioned at bushing both sides, with manpower, waist hoop suspender belt tail rope is fastened knot and strained.(5) command crane adjustment main hook slowly to rise, bushing is separated with high-tension apparatus body gradually.Adopt said method, although waist hoop suspender belt is after main risers is stressed, just bundle is around getting on, and fastens waist hoop suspender belt tail rope knot with manpower, with the same when installing, still there is following problem: (1) waist hoop suspender belt knot still likely scatters.(2) after bushing is separated with apparatus body, once main risers line of centers departs from bushing line of centers, the waist hoop suspender belt made around being positioned at main risers is increased, and then make cannula center to certain lopsidedness, not only equipment may be injured, even also can cause in a dilemma severe situation, work efficiency must be caused low.
Summary of the invention
The object of the invention is to solve above-mentioned prior art Problems existing and potential safety hazard, provide a kind of C type larynx hoop intersection binding suspender belt that uses install or remove the method for bushing.
Object of the present invention is achieved through the following technical solutions:
C type larynx hoop intersection binding suspender belt is used to install or remove the method for bushing, the larynx hoop suspender belt that described C type larynx hoop intersects that binding suspender belt comprises two isometric main riserses, annular assists suspender belt, one can curve C type, the two ends of two main riserses are equipped with the U-shaped ring of instrument and suspension ring respectively; Described larynx hoop suspender belt is by the doubling of a closed loop band and strand turns round rear bending to form; Adopt C type larynx hoop to intersect bundle suspender belt installation high-voltage sleeve pipe or remove bushing, the method for operation of installation high-voltage sleeve pipe is as follows:
A. the outer circumference of position, grease chamber, bushing top is measured, and obtain 1/2 girth numerical value of outer circumference, length is selected to be greater than the larynx hoop suspender belt of 1/2 girth, then strand turns round larynx hoop suspender belt, and after making larynx hoop suspender belt bend to C type, Inner arc maximum arc length is slightly less than or equals bushing top grease chamber cylindrical 1/2 girth;
B. by after the doubling of described closed loop band or doubling strand turn round to be placed on and put on the downside of the top grease chamber of bushing of state and the groove position of insulator junction in level;
C. U-shaped for the instrument of two main riserses ring end is overlapped respectively on suspension ring that two of being buckled in that bushing one end carries arrange along bushing radial symmetry, then strand turns round larynx hoop suspender belt, after bending to C type to larynx hoop suspender belt, Inner arc maximum arc length is slightly less than or equals bushing top grease chamber cylindrical 1/2 girth, the two ends trepanning of larynx hoop suspender belt will be diagonally passed again after the free end of two main riserses on high voltage bushings top-cross fork, make two main riserses along bushing longitudinally in arranged crosswise, bushing bundle is enclosed between two main riserses of intersection and the C type larynx hoop suspender belt of twisting,
D. the suspension ring end of two main riserses is all hung on crane main hook, check and adjust two main riserses and larynx hoop suspender belt two and intert point and be positioned at the symmetric position of bushing radial direction;
E. annular assisted suspender belt to fasten at bushing tail end near butt flange place, and be hooked on the little hook of crane;
F. commander's crane adjustment main hook, little hook slowly rise, bushing is risen and winches to horizontal overhead positions, continue to promote afterwards or by main hook, or little hook is continued to decline, erect gradually to bushing, main hook center is overlapped gradually with bushing line of centers, until bushing is erectility, continues to winch to position to be installed and install;
The method of operation of removing bushing is as follows:
A. the outer circumference of position, grease chamber, bushing top is measured, and obtain 1/2 girth numerical value of outer circumference, length is selected to be greater than the larynx hoop suspender belt of 1/2 girth, then strand turns round larynx hoop suspender belt, and after making larynx hoop suspender belt bend to C type, Inner arc maximum arc length is slightly less than or equals bushing top grease chamber cylindrical 1/2 girth;
The two ends trepanning of the larynx hoop suspender belt b. two main riserses turned round through strand, and the suspension ring end of two main riserses is all hung on crane main hook, commander's adjustment crane, makes main hook center overlap with bushing line of centers, then slowly puts down the main risers on main hook;
C. by the groove position side of larynx hoop suspender belt adjusting sleeve in the top grease chamber of bushing and insulator junction;
D. by two main risers free ends bushing opposite side intersect after, by on two U-shaped ring ends of instrument suspension ring that diagonally cover two of being buckled in that bushing one end carries arrange along bushing radial symmetry respectively, make two main riserses be longitudinally arranged crosswise along bushing, bushing bundle is enclosed between two main riserses of intersection and the C type larynx hoop suspender belt of twisting;
E. check that larynx hoop suspender belt is positioned at the groove position of bushing top grease chamber and insulator junction, two interspersed points of two main riserses and larynx hoop suspender belt are positioned at the symmetric position of bushing radial direction and are positioned bushing end face;
F. command crane adjustment main hook slowly to rise, bushing is separated with high-tension apparatus body gradually.
The inventive method is when removing bushing, after bushing is separated with high-tension apparatus body gradually, commander's crane adjustment main hook slowly declines, the annular auxiliary hanging band be hooked on the little hook of crane is fastened at bushing tail end near butt flange place, then main hook continues to decline, or little hook promotes, to bushing lie gradually flat after be placed on ground or bogey.
The auxiliary suspender belt of main risers of the present invention, annular, larynx hoop suspender belt are nylon sling.
Adopt the inventive method, because two main riserses are each passed through the two ends trepanning of the larynx hoop suspender belt being enclosed within the twisting being positioned at bushing opposite side again after bushing side intersects, bushing is firmly fixed between main risers and larynx hoop suspender belt, mutually restrict fixing with larynx hoop suspender belt again after two main riserses intersect, in addition larynx hoop suspender belt can be grasped twisting flexibly and is slightly less than to its Inner arc maximum arc length after bending to C type or equals bushing top grease chamber cylindrical 1/2 girth, ensure that main risers and larynx hoop suspender belt can be close to bushing all the time and not produce displacement, repeatedly need not adjust in lifting process, efficient work and safety.The present invention efficiently solves existing construction method owing to relying on manpower system bundle waist hoop nylon sling, cause main risers position not fix and the potential safety hazard existed and the inferior problem of inefficiency, guarantee install safe, reliable, efficiently or remove bushing.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of prior art installation high-voltage casing methods;
Fig. 2-1 ~ Fig. 2-3 is the process schematic of installation high-voltage sleeve pipe of the present invention;
Fig. 3 is the closed loop band schematic diagram as larynx hoop suspender belt;
Fig. 4 is the schematic diagram after closed loop band strand is turned round;
Fig. 5 be larynx hoop suspender belt bend to C jacket on high voltage bushings after main risers again through the cross sectional representation of slinging.
Detailed description of the invention
As shown in Fig. 2-1, Fig. 2-2, Fig. 2-3, the inventive method C type larynx hoop used intersects binding suspender belt and comprises the two ends that two isometric main risers 1, annulars assist suspender belt 2, can curve larynx hoop suspender belt 3, two main riserses 1 of C type the U-shaped ring of instrument 4 and special suspension ring 5 are housed respectively; Described larynx hoop suspender belt 3 is by a closed loop band doubling as shown in Figure 3 and strand turns round the rear bending shape formed as shown in Figure 4.The auxiliary suspender belt 2 of main risers 1, annular, larynx hoop suspender belt 3 are nylon sling.The present invention adopts C type larynx hoop to intersect and bundlees suspender belt installation high-voltage sleeve pipe or remove bushing.
The method of operation of installation high-voltage sleeve pipe is as follows:
A. the outer circumference of position, grease chamber, bushing top is measured, and obtain 1/2 girth numerical value of outer circumference, length is selected to be greater than (being slightly longer than) 1/2 larynx hoop suspender belt 3 of girth, then strand turns round larynx hoop suspender belt 3, and after making larynx hoop suspender belt bend to C type, Inner arc maximum arc length is slightly less than or equals bushing top grease chamber cylindrical 1/2 girth;
B. by after the doubling of larynx hoop suspender belt closed loop band or doubling strand turn round to be placed on and put on the downside of the top grease chamber 6a of bushing 6 of state and the groove position 6c of insulator 6b junction in level;
C. U-shaped for the instrument of two main riserses 1 ring end is overlapped respectively on special suspension ring 6d that two of being buckled in that bushing one end carries arrange along bushing radial symmetry, then strand turns round larynx hoop suspender belt 3, as shown in Figure 5, after bending to C type to larynx hoop suspender belt, Inner arc maximum arc length is slightly less than or equals bushing top grease chamber cylindrical 1/2 girth, the two ends trepanning 3a of larynx hoop suspender belt 3 will be diagonally passed again after the free end of two main riserses on high voltage bushings top-cross fork, make two main riserses along bushing longitudinally in arranged crosswise, bushing bundle is enclosed between two main riserses of intersection and the C type larynx hoop suspender belt of twisting,
D. the suspension ring end of two main riserses is all hung on crane main hook, check and adjust two main riserses and larynx hoop suspender belt two and intert point and be positioned at the symmetric position of bushing radial direction;
E. annular assisted suspender belt 2 ring to fasten at bushing tail end near butt flange 6e place, and be hooked on the little hook of crane;
F. commander's crane adjustment main hook, little hook slowly rise, bushing is risen and winches to horizontal overhead positions, or main hook continues to promote, or little hook reduces, bushing is erect gradually, as shown in Fig. 2-2, main hook center is overlapped gradually with bushing line of centers, until bushing is in erectility as Figure 2-3, continues to winch to position to be installed and install;
The method of operation of removing bushing is as follows:
A. the outer circumference of position, grease chamber, bushing top is measured, and obtain 1/2 girth numerical value of outer circumference, length is selected to be greater than (being slightly longer than) 1/2 larynx hoop suspender belt 3 of girth, then strand turns round larynx hoop suspender belt 3, and after making larynx hoop suspender belt bend to C type, Inner arc maximum arc length is slightly less than or equals bushing top grease chamber cylindrical 1/2 girth;
The two ends trepanning 3a of the larynx hoop suspender belt 3 b. two main riserses turned round through strand, and the suspension ring end of two main riserses is all hung on crane main hook, commander's adjustment crane, makes main hook center overlap with bushing line of centers, then slowly puts down the main risers on main hook;
C. by the top grease chamber 6a of larynx hoop suspender belt 3 adjusting sleeve at bushing 6 and the 6c side, groove position of insulator 6b junction;
D. by two main risers 1 free ends bushing opposite side intersect after, by on two instrument U-shaped ring ends special suspension ring 6d that diagonally cover two of being buckled in that bushing one end carries arrange along bushing radial symmetry respectively, make two main riserses be longitudinally arranged crosswise along bushing, bushing bundle is enclosed between two main riserses of intersection and the C type larynx hoop suspender belt of twisting;
E. check that larynx hoop suspender belt 3 is positioned at the groove position 6c of bushing top grease chamber 6a and insulator 6b junction, two interspersed points of two main riserses and larynx hoop suspender belt are positioned at the symmetric position of bushing radial direction and are positioned bushing end face;
F. command crane adjustment main hook slowly to rise, bushing is separated with high-tension apparatus body gradually;
G. after bushing is separated with high-tension apparatus body gradually, commander's crane adjustment main hook slowly declines, suspender belt 2 ring annular is assisted to fasten at bushing tail end near butt flange 6e place, and be hooked on the little hook of crane, then main hook continues to decline, or little hook promotes, to bushing lie gradually flat after be placed on ground or bogey.

Claims (3)

1. use C type larynx hoop intersection binding suspender belt install or remove the method for bushing, it is characterized in that, the larynx hoop suspender belt (3) that described C type larynx hoop intersects that binding suspender belt comprises two isometric main riserses (1), annular assists suspender belt (2), one can curve C type, the two ends of two main riserses (1) are equipped with the U-shaped ring of instrument (4) and suspension ring (5) respectively; Described larynx hoop suspender belt (3) is by the doubling of a closed loop band and strand turns round rear bending to form; Adopt C type larynx hoop to intersect bundle suspender belt installation high-voltage sleeve pipe or remove bushing, the method for operation of installation high-voltage sleeve pipe is as follows:
A. the outer circumference of position, grease chamber, bushing top is measured, and obtain 1/2 girth numerical value of outer circumference, length is selected to be greater than the larynx hoop suspender belt (3) of 1/2 girth, then strand turns round larynx hoop suspender belt, and after making larynx hoop suspender belt bend to C type, Inner arc maximum arc length is slightly less than or equals bushing top grease chamber cylindrical 1/2 girth;
B. by after the doubling of described closed loop band or doubling strand turn round the downside, groove position (6c) of top grease chamber (6a) and insulator (6b) junction being placed on the bushing (6) putting state in level;
C. U-shaped for the instrument of two main riserses (1) ring end is overlapped respectively on suspension ring (6d) that two of being buckled in that bushing one end carries arrange along bushing radial symmetry, then strand turns round larynx hoop suspender belt (3), after bending to C type to larynx hoop suspender belt, Inner arc maximum arc length is slightly less than or equals bushing top grease chamber cylindrical 1/2 girth, the two ends trepanning (3a) of larynx hoop suspender belt will be diagonally passed again after the free end of two main riserses on high voltage bushings top-cross fork, make two main riserses along bushing longitudinally in arranged crosswise, bushing bundle is enclosed between two main riserses of intersection and the C type larynx hoop suspender belt of twisting,
D. the suspension ring end of two main riserses is all hung on crane main hook, check and adjust two main riserses and larynx hoop suspender belt two and intert point and be positioned at the symmetric position of bushing radial direction;
E. annular assisted suspender belt (2) to fasten at bushing tail end near butt flange (6e) place, and be hooked on the little hook of crane;
F. commander's crane adjustment main hook, little hook slowly rise, bushing is risen and winches to horizontal overhead positions, continue to promote afterwards or by main hook, or little hook is continued to decline, erect gradually to bushing, main hook center is overlapped gradually with bushing line of centers, until bushing is erectility, continues to winch to position to be installed and install;
The method of operation of removing bushing is as follows:
A. the outer circumference of position, grease chamber, bushing top is measured, and obtain 1/2 girth numerical value of outer circumference, length is selected to be greater than the larynx hoop suspender belt (3) of 1/2 girth, then strand turns round larynx hoop suspender belt, and after making larynx hoop suspender belt bend to C type, Inner arc maximum arc length is slightly less than or equals bushing top grease chamber cylindrical 1/2 girth;
The two ends trepanning (3a) of the larynx hoop suspender belt b. two main riserses turned round through strand, and the suspension ring end of two main riserses is all hung on crane main hook, commander's adjustment crane, makes main hook center overlap with bushing line of centers, then slowly puts down the main risers on main hook;
C. by the top grease chamber (6a) of larynx hoop suspender belt (3) adjusting sleeve at bushing (6) and groove position (6c) side of insulator (6b) junction;
D. by two main risers (1) free ends bushing opposite side intersect after, by on two U-shaped ring ends of instrument suspension ring (6d) that diagonally cover two of being buckled in that bushing one end carries arrange along bushing radial symmetry respectively, make two main riserses be longitudinally arranged crosswise along bushing, bushing bundle is enclosed between two main riserses of intersection and the C type larynx hoop suspender belt of twisting;
E. check that larynx hoop suspender belt (3) is positioned at the groove position (6c) of bushing top grease chamber (6a) and insulator (6b) junction, two interspersed points of two main riserses and larynx hoop suspender belt are positioned at the symmetric position of bushing radial direction and are positioned bushing end face;
F. command crane adjustment main hook slowly to rise, bushing is separated with high-tension apparatus body gradually.
2. use C type larynx hoop intersection binding suspender belt install or remove the method for bushing according to claim 1, it is characterized in that, when removing bushing, after bushing is separated with high-tension apparatus body gradually, commander's crane adjustment main hook slowly declines, suspender belt (2) ring the annular be hooked on the little hook of crane is assisted to fasten at bushing tail end near butt flange (6e) place, then main hook continues to decline, or little hook promotes, to bushing lie gradually flat after be placed on ground or bogey.
3. utilization C type larynx hoop intersection binding suspender belt according to claim 1 and 2 is installed or removes the method for bushing, it is characterized in that, the auxiliary suspender belt (2) of described main risers (1), annular, larynx hoop suspender belt (3) are nylon sling.
CN201510287371.7A 2015-05-29 2015-05-29 Method for installing or removing high voltage bushing by using C-shaped hoseclamp cross binding strap Active CN104961044B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106429817A (en) * 2016-11-17 2017-02-22 国网福建省电力有限公司 Ultrahigh-voltage bushing hosting method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60122682A (en) * 1983-12-08 1985-07-01 Mitsubishi Electric Corp Hanger for bushing for electrical apparatus
CN201999620U (en) * 2010-08-25 2011-10-05 中国西电电气股份有限公司 Auxiliary lifting device for ultrahigh pressure inflating casing
CN102602794A (en) * 2012-03-29 2012-07-25 沧州供电公司 Special tool for lifting bushing
CN103663128A (en) * 2013-12-24 2014-03-26 天威保变(秦皇岛)变压器有限公司 Hoisting method for transformer bushing
CN203529713U (en) * 2013-09-17 2014-04-09 中国十九冶集团有限公司 High-pressure sleeve hoisting structure
CN204310679U (en) * 2014-12-03 2015-05-06 国家电网公司 Electric power transformer insulated sleeve hoisting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60122682A (en) * 1983-12-08 1985-07-01 Mitsubishi Electric Corp Hanger for bushing for electrical apparatus
CN201999620U (en) * 2010-08-25 2011-10-05 中国西电电气股份有限公司 Auxiliary lifting device for ultrahigh pressure inflating casing
CN102602794A (en) * 2012-03-29 2012-07-25 沧州供电公司 Special tool for lifting bushing
CN203529713U (en) * 2013-09-17 2014-04-09 中国十九冶集团有限公司 High-pressure sleeve hoisting structure
CN103663128A (en) * 2013-12-24 2014-03-26 天威保变(秦皇岛)变压器有限公司 Hoisting method for transformer bushing
CN204310679U (en) * 2014-12-03 2015-05-06 国家电网公司 Electric power transformer insulated sleeve hoisting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106429817A (en) * 2016-11-17 2017-02-22 国网福建省电力有限公司 Ultrahigh-voltage bushing hosting method
CN106429817B (en) * 2016-11-17 2017-12-05 国网福建省电力有限公司 Extra-high voltage sleeve pipe hanging method

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