CN111675144A - Wall bushing pressure test strutting arrangement - Google Patents
Wall bushing pressure test strutting arrangement Download PDFInfo
- Publication number
- CN111675144A CN111675144A CN202010531284.2A CN202010531284A CN111675144A CN 111675144 A CN111675144 A CN 111675144A CN 202010531284 A CN202010531284 A CN 202010531284A CN 111675144 A CN111675144 A CN 111675144A
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- CN
- China
- Prior art keywords
- plate
- semicircular
- wall bushing
- lifting device
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/0625—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement with wheels for moving around the floor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/065—Scissor linkages, i.e. X-configuration
- B66F7/0666—Multiple scissor linkages vertically arranged
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention belongs to the technical field of through-wall conductive connecting devices, and particularly relates to a through-wall bushing pressure test supporting device which comprises a bottom plate, wherein 4 rollers are arranged below the bottom plate, and auxiliary supporting legs are arranged on the lower surface of the bottom plate and are hydraulic jacking rods; a lifting device is arranged on the bottom plate, and the lifting device is a scissor-type lifter; a flat plate is arranged at the upper end of the lifting device, and the flat plate is a steel plate; the flat plate is fixedly provided with a supporting seat. The invention is a lifting air leakage frame structure, which can avoid the influence of wind on the wall bushing; the invention can lead the sleeve to leave the lifting device for enough distance; the invention can walk to reach the appointed position and can be fixed on the chassis structure at the appointed position.
Description
Technical Field
The invention belongs to the technical field of through-wall conductive connecting devices, and particularly relates to a supporting device for a withstand voltage test of a through-wall bushing.
Background
The wall bushing is an important component in direct current engineering and is an essential component for communicating the inside of a direct current valve hall in a converter station with an external high-voltage circuit. The weight of a single 500 kV-sized wall bushing is close to 3 tons, the maximum diameter is close to 1 meter, the length is over 13 meters, two ends of the wall bushing have high-voltage potential reaching 500kV in the pressure-resistant test process, the potential exceeding 36V is known to cause injury and even death to human bodies, and therefore no object except the bushing can be found in an electric field area in the test process, otherwise, safety accidents or discharge phenomena can be caused. Therefore, a high platform or a high frame is considered, the wall bushing is supported during the test, firstly, the electric field area is ensured to be away from the ground, secondly, the high platform/the high frame is ensured to be arranged outside the electric field area, because the bushing is lifted to the height of about 7.5 meters in the test process according to requirements, the upper edge of the electric field area exceeds 14 meters, the indoor environment can hardly meet the condition at present, most of the test can be finished only in the outdoor environment, and the outdoor environment has airflow fluctuation. The withstand voltage test of the wall bushing lasts for 1 hour, so the windproof performance is considered, the scheme ensures that the rising test state is kept stable under the condition of 6-level wind, at present, the bushing is hoisted to the required height by a large gantry crane in a station for testing, and because a hoisting object is a flexible steel rope and a fixed object is a flexible insulating rope, the bushing can swing greatly when blown by wind in the test process, so that potential safety hazards exist, and the bushing is basically not advisable.
Disclosure of Invention
The technical problem to be solved by the application of the patent is to provide the wall bushing pressure test supporting device, which can stably and fixedly support the wall bushing in the wall bushing test process, and ensure that the field pressure test process is smoothly completed.
The specific technical scheme is as follows: a wall bushing pressure test supporting device comprises a bottom plate, wherein 4 rollers are arranged below the bottom plate, and auxiliary supporting legs are arranged on the lower surface of the bottom plate and are hydraulic jacking rods; a lifting device is arranged on the bottom plate, and the lifting device is a scissor-type lifter; a flat plate is arranged at the upper end of the lifting device, and the flat plate is a steel plate; the flat plate is fixedly provided with a supporting seat; the supporting seat is capable of supporting a wall bushing and comprises a base and a bushing clamping seat formed by combining two semicircular hoops, the base is of a T-shaped structure formed by vertically welding two steel plates, the bottom end of the base is a steel plate which is arranged in parallel and fixedly connected with a flat plate, the base is a vertical steel plate in the vertical direction, and a rib plate is arranged between the side wall of the vertical steel plate and the steel plate at the bottom end of the base; the upper end of the vertical steel plate is connected with two semicircular hoops which can be butted through bolts, and the wall bushing can be fixed after the semicircular hoops are combined; a pair of semicircular fixing plates are respectively arranged on the front side and the rear side of the two semicircular hoops, and a connecting plate vertical to the end surfaces of the semicircular fixing plates is welded at the contact part of the two semicircular fixing plates; the semicircular hoop and the semicircular fixing plate are correspondingly provided with a plurality of holes, and the semicircular hoop and the semicircular fixing plate can be connected through bolts; the connecting plate is provided with a hole, and a bolt can connect the two semicircular fixing plates through the hole.
Has the advantages that: the invention is a lifting air leakage frame structure, which can avoid the influence of wind on the wall bushing; the invention can lead the sleeve to leave the lifting device for enough distance; the invention can walk to reach the appointed position and can be fixed on the chassis structure at the appointed position. The invention is simple and convenient in the test and use process, can well simulate the actual working state of the casing, greatly reduces the professional technical level of operators and improves the operation safety.
Drawings
FIG. 1 is a schematic view of the open state of the present invention;
FIG. 2 is a schematic view of the present invention in a closed state;
FIG. 3 is a schematic view of a ferrule holder of the present invention;
wherein, 1, a bottom plate; 2, rolling wheels; 3, auxiliary supporting legs; 4, a lifting device; 5, flat plate; 6, a base; 7, a sleeve clamping seat; 8, a semicircular hoop; 9, a semicircular fixing plate; 10 connecting the plates.
Detailed Description
The supporting device for the pressure test of the seed wall bushing shown in fig. 1-3 comprises a bottom plate 1, 4 rollers 2 are arranged below the bottom plate 1, auxiliary supporting legs 3 are arranged on the lower surface of the bottom plate 1, and the auxiliary supporting legs 3 are hydraulic jacking rods; a lifting device 4 is arranged on the bottom plate 1, and the lifting device 4 is a scissor-type lifter; a flat plate 5 is arranged at the upper end of the lifting device 4, and the flat plate 5 is a steel plate; a support seat is fixedly arranged on the flat plate 5; the supporting seat is capable of supporting a wall bushing and comprises a base 6 and a bushing clamping seat 7 formed by combining two semicircular hoops 8, the base 6 is of a T-shaped structure formed by vertically welding two steel plates, the bottom end of the base 6 is fixedly connected with a flat plate through the steel plates arranged in parallel, the base is a vertical steel plate in the vertical direction, and a rib plate is arranged between the side wall of the vertical steel plate and the steel plate at the bottom end of the base; the upper end of the vertical steel plate is connected with two semicircular hoops 8 (the inner parts of the semicircular hoops are semicircular) which can be butted with each other through bolts, and the semicircular hoops 8 can fix the wall bushing after being combined; a pair of semicircular fixing plates 9 are respectively arranged on the front side and the rear side of the two semicircular hoops 8, and a connecting plate 10 vertical to the end surfaces of the semicircular fixing plates is welded at the contact part of the two semicircular fixing plates 9; a plurality of holes are correspondingly formed in the semicircular hoop 8 and the semicircular fixing plate 9, and the semicircular hoop 8 and the semicircular fixing plate 9 can be connected through bolts; holes are formed in the connecting plates 10, and bolts can connect the two semicircular fixing plates 9 through the holes.
Support the wall bushing during the experiment, guarantee at first that the electric field region leaves ground, guarantee secondly that high platform/overhead frame is outside the electric field region, because the sleeve pipe will be lifted to the height about 7.5 meters in the experimentation as required, the electric field region is gone up to be followed and is exceeded 14 meters height, and present indoor environment hardly satisfies this condition, leads to this experiment most to be accomplished under outdoor environment, and outdoor environment has the air current undulant. The withstand voltage test of the wall bushing lasts for 1 hour, so the wind resistance is considered, the scheme ensures that the rising test state is kept stable under the condition of 6-level wind, and a large-area wind receiving structure cannot be adopted structurally. Because this support frame is the steel construction, the solarization drenches and corrodes easily and rust and lead to the equipment life to shorten, and the warehouse is deposited in the room best to non-experimental state at ordinary times, consequently considers liftable structure, and the contraction status platform height is less than 1.3 meters, and gyro wheel and auxiliary supporting leg are removed from the area to the platform, easily remove the saving, and auxiliary supporting leg falls to the ground to support when experimental and guarantees stably, and the rising supporting seat guarantees that elevating gear breaks away from the electric field area completely.
Claims (1)
1. A wall bushing pressure test supporting device is characterized by comprising a bottom plate, wherein 4 rollers are arranged below the bottom plate, and auxiliary supporting legs are arranged on the lower surface of the bottom plate and are hydraulic jacking rods;
a lifting device is arranged on the bottom plate, and the lifting device is a scissor-type lifter;
a flat plate is arranged at the upper end of the lifting device, and the flat plate is a steel plate;
the flat plate is fixedly provided with a supporting seat;
the supporting seat is capable of supporting a wall bushing and comprises a base and a bushing clamping seat formed by combining two semicircular hoops, the base is of a T-shaped structure formed by vertically welding two steel plates, the bottom end of the base is a steel plate which is arranged in parallel and fixedly connected with a flat plate, the base is a vertical steel plate in the vertical direction, and a rib plate is arranged between the side wall of the vertical steel plate and the steel plate at the bottom end of the base; the upper end of the vertical steel plate is connected with two semicircular hoops which can be butted through bolts, and the wall bushing can be fixed after the semicircular hoops are combined; a pair of semicircular fixing plates are respectively arranged on the front side and the rear side of the two semicircular hoops, and a connecting plate vertical to the end surfaces of the semicircular fixing plates is welded at the contact part of the two semicircular fixing plates; the semicircular hoop and the semicircular fixing plate are correspondingly provided with a plurality of holes, and the semicircular hoop and the semicircular fixing plate can be connected through bolts; the connecting plate is provided with a hole, and a bolt can connect the two semicircular fixing plates through the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010531284.2A CN111675144A (en) | 2020-06-11 | 2020-06-11 | Wall bushing pressure test strutting arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010531284.2A CN111675144A (en) | 2020-06-11 | 2020-06-11 | Wall bushing pressure test strutting arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111675144A true CN111675144A (en) | 2020-09-18 |
Family
ID=72435457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010531284.2A Pending CN111675144A (en) | 2020-06-11 | 2020-06-11 | Wall bushing pressure test strutting arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111675144A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113484623A (en) * | 2021-05-28 | 2021-10-08 | 中国电力科学研究院有限公司 | Tubular insulating part space charge measuring device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104140061A (en) * | 2014-07-28 | 2014-11-12 | 济南华北升降平台制造有限公司 | Bricking furnace lifting device |
| CN106226177A (en) * | 2016-07-12 | 2016-12-14 | 南方电网科学研究院有限责任公司 | Extra-high voltage direct current composite wall bushing internal and external anti-seismic test device and test method |
| CN107132382A (en) * | 2017-05-18 | 2017-09-05 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Direct-current wall bushing test bracket |
| CN208535319U (en) * | 2018-05-04 | 2019-02-22 | 王苏昊 | A kind of natural gas line Construction Support device |
| CN209193471U (en) * | 2018-12-14 | 2019-08-02 | 通号轨道车辆有限公司 | A kind of raising tooling of rail vehicle door drive |
| CN210179067U (en) * | 2019-07-09 | 2020-03-24 | 太仓库珂精工科技有限公司 | Pipeline installation fixing clamp |
| CN111196295A (en) * | 2018-11-19 | 2020-05-26 | 黄石上方检测设备有限公司 | Multi freedom dolly of detecting a flaw |
-
2020
- 2020-06-11 CN CN202010531284.2A patent/CN111675144A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104140061A (en) * | 2014-07-28 | 2014-11-12 | 济南华北升降平台制造有限公司 | Bricking furnace lifting device |
| CN106226177A (en) * | 2016-07-12 | 2016-12-14 | 南方电网科学研究院有限责任公司 | Extra-high voltage direct current composite wall bushing internal and external anti-seismic test device and test method |
| CN107132382A (en) * | 2017-05-18 | 2017-09-05 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Direct-current wall bushing test bracket |
| CN208535319U (en) * | 2018-05-04 | 2019-02-22 | 王苏昊 | A kind of natural gas line Construction Support device |
| CN111196295A (en) * | 2018-11-19 | 2020-05-26 | 黄石上方检测设备有限公司 | Multi freedom dolly of detecting a flaw |
| CN209193471U (en) * | 2018-12-14 | 2019-08-02 | 通号轨道车辆有限公司 | A kind of raising tooling of rail vehicle door drive |
| CN210179067U (en) * | 2019-07-09 | 2020-03-24 | 太仓库珂精工科技有限公司 | Pipeline installation fixing clamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113484623A (en) * | 2021-05-28 | 2021-10-08 | 中国电力科学研究院有限公司 | Tubular insulating part space charge measuring device |
| CN113484623B (en) * | 2021-05-28 | 2023-12-01 | 中国电力科学研究院有限公司 | Tubular insulator space charge measuring device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200918 |
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| RJ01 | Rejection of invention patent application after publication |