CN109932597B - Composite insulator umbrella skirt non-uniform aging test platform and use method thereof - Google Patents
Composite insulator umbrella skirt non-uniform aging test platform and use method thereof Download PDFInfo
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- CN109932597B CN109932597B CN201910225388.8A CN201910225388A CN109932597B CN 109932597 B CN109932597 B CN 109932597B CN 201910225388 A CN201910225388 A CN 201910225388A CN 109932597 B CN109932597 B CN 109932597B
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- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 230000032683 aging Effects 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 239000012212 insulator Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000007613 environmental effect Effects 0.000 claims abstract description 11
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 230000002431 foraging effect Effects 0.000 claims abstract description 3
- 210000000988 bone and bone Anatomy 0.000 claims description 30
- 235000012431 wafers Nutrition 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- KHDSWONFYIAAPE-UHFFFAOYSA-N silicon sulfide Chemical compound S=[Si]=S KHDSWONFYIAAPE-UHFFFAOYSA-N 0.000 claims description 3
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention discloses a non-uniform aging test platform for a composite insulator umbrella skirt and a use method thereof.A umbrella-shaped support framework with the same shape and size as the composite insulator umbrella skirt is built, and the umbrella-shaped support framework is installed on a stand column to form the test platform; uniformly mounting the sample wafer on the outer surface of the umbrella-shaped supporting framework; placing the test platform provided with the sample wafer in an outdoor environment for aging test, indicating the mounting direction of the test platform by using a direction indicator, and recording environmental data through an environmental sensor; after the test period is reached, printing an umbrella-shaped support framework drawing, marking the position and the direction of a direction arrow on the printed drawing on site, taking sample pieces from the umbrella-shaped support framework piece by piece, numbering, filling sample piece numbers in corresponding positions on the drawing, and marking the number of layers of the umbrella-shaped support framework from top to bottom on the sample pieces of each layer of umbrella-shaped support framework in one drawing and close to the side of the drawing; and carrying out subsequent aging performance analysis and detection on the taken sample wafer.
Description
Technical Field
The invention belongs to the technical field of electric power engineering, and particularly relates to a composite insulator umbrella skirt non-uniform aging test platform and a use method thereof.
Background
The composite insulator is widely applied to overhead transmission lines in China, and the aging problem of the composite insulator is not negligible. In the operation process, the composite insulator shed is found to have uneven aging, namely, the shed in a certain direction can be aged more seriously than other areas. However, when the composite insulator is researched to age in an accelerated manner in a laboratory, the aging environment of the material is consistent, uneven aging simulation is difficult to perform, and the problems that slicing and sampling are complicated and the like exist after the composite insulator true test sample is adopted to simulate aging.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. Therefore, one of the purposes of the invention is to provide a composite insulator umbrella skirt uneven aging test platform which is convenient to operate and can truly simulate uneven aging of a composite insulator umbrella skirt and a using method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an inhomogeneous aging testing platform of composite insulator full skirt, include the stand with set up perpendicularly in on the stand and with the same umbrella-type supporting framework of composite insulator full skirt shape and size, even detachable installs the sample piece on umbrella-type supporting framework's surface, the sample piece adopts and adopts the same technology preparation with the same raw materials silicon sulfide rubber of composite insulator.
And further, the sample wafers are arranged in rows on the outer surface of the umbrella-shaped support framework from the top center of the umbrella-shaped support framework towards the outer edge direction, and each row of sample wafers consists of a plurality of sample wafers which are distributed on the outer surface of the umbrella-shaped support framework in an annular array by taking the upright column as a central shaft.
Further, the umbrella-shaped supporting framework comprises main bones, annular auxiliary bones which are sequentially connected with the main bones in series and supporting bones which are obliquely supported and installed between the annular auxiliary bones and the upright posts.
And further, a joist is transversely arranged on the main rib, and two ends of the sample are lapped on the joist and are assembled and connected through fixing pins.
Further, the sample wafer is square.
A method for using a composite insulator umbrella skirt uneven aging test platform comprises the steps of placing the test platform provided with a sample piece in an outdoor environment for aging test, indicating the installation direction of the test platform by using a direction indicator, and recording environmental data through an environmental sensor; after the test period is reached, printing an umbrella-shaped support framework drawing, marking the position and the direction of a direction arrow on the printed drawing on site, taking sample pieces from the umbrella-shaped support framework piece by piece, numbering, filling sample piece numbers in corresponding positions on the drawing, and marking the number of layers of the umbrella-shaped support framework from top to bottom on the sample pieces of each layer of umbrella-shaped support framework in one drawing and close to the side of the drawing; and carrying out subsequent aging performance analysis and detection on the taken sample wafer.
It is further right that environmental sensor includes temperature and humidity sensor, rainfall sensor and raise dust monitoring sensor.
Compared with the prior art, the invention has the beneficial effects that:
1. compare current test platform, the whole test process of this embodiment does not need additionally to add professional test equipment, and the test cost is low, can realize the inhomogeneous ageing simulation of full skirt. The test platform is directly arranged in a real working environment, and the aging test sample wafer which is manufactured by the same process as the composite insulator and the same raw material of vulcanized silicone rubber is adopted, so that the equivalence of the aging test and the reliability of data are ensured, the sample wafer is uniformly and detachably mounted on the outer surface of the special umbrella-shaped support framework, the sampling is very convenient, and the labor is saved.
2. The test platform is uniform through a plurality of test platforms with the same structure for later-stage test data is more comparable. In addition, the flexible installation mode of the test platform enables the platform to be applied in various environments, and aging environment conditions are expanded.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the umbrella support framework of the present invention;
FIG. 3 is a schematic diagram of the distribution of the coupons on the umbrella-shaped supporting framework;
FIG. 4 is a schematic view of the connection of a coupon to a joist.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the non-uniform aging test platform for the composite insulator shed comprises a vertical column 1 and an umbrella-shaped supporting framework which is vertically arranged on the vertical column 1 and has the same shape and size as the composite insulator shed, sample pieces 10 are uniformly and detachably arranged on the outer surface of the umbrella-shaped supporting framework, and the sample pieces 10 are made of the same raw material silicon sulfide rubber as the composite insulator by the same process.
Referring to fig. 1 and 2, specifically, the umbrella-shaped support framework comprises main bones 2, annular auxiliary bones 3 sequentially connected with the main bones 2 in series, and support bones 4 obliquely supported and installed between the annular auxiliary bones 3 and the upright post 1, wherein a plurality of joists 5 are further transversely installed on the main bones 2 along the axial direction of the main bones, and a direction indicator is installed at the top of the upright post 1 and consists of a circular ring 6, a direction arrow 7 and a fastening bolt 8.
Referring to fig. 1, in practical application, in order to facilitate the installation of the test platform, a connecting flange 9 is arranged at the lower end of the upright post 1, and the central axis of the upright post 1 is overlapped with the central axis of the connecting flange 9; the umbrella-shaped supporting framework is provided with 8 main bones 2 and 2 annular auxiliary bones 3 which are consistent in length, the included angle between every two main bones 2 is 22.5 degrees, the upper ends of the main bones 2 are fixedly connected with the upright post 1, the fixed connection points of the 8 main bones 2 and the upright post 1 are positioned in the same plane, the included angle between the main bones 2 and the horizontal plane is theta, one annular auxiliary bone 3 connects the tail ends of the 8 main bones 2 in series, and the other annular auxiliary bone 3 connects the middle parts of the 8 main bones 2 in series; the central axis of the annular auxiliary rib 3 coincides with the central axis of the upright column 1, the annular auxiliary rib 3 is positioned below the main rib 2, namely the shadow plane of the umbrella, the tail end of the support rib 4 is fixedly connected with the upright column 1, the top end of the support rib 4 inclines upwards to form a support with the annular auxiliary rib 3 at the middle part, the 8 support ribs 4 and the fixed connection points of the upright column 1 are positioned in the same plane, the joist 5 is fixed above the main rib, namely the sun plane of the umbrella, and the joist 5 is in bilateral symmetry by taking the main rib as an axis.
The diameter of the inner wall of the circular ring of the direction device is larger than the diameter of the outer wall of the stand column by 1mm, the direction arrow of the direction device is fixed on one side of the circular ring, the other side of the circular ring is provided with an inner tapping screw hole, a fastening bolt tightly and can freely pass through the screw hole, the circular ring is sleeved on the top end of the stand column, and the fastening bolt is rotated inwards to enable the top end of the fastening bolt to compress the stand column and finally keep fixed.
Specifically, the upright column 1 is a hot-dip galvanized steel pipe with the outer diameter of 30mm and the pipe wall thickness of 2 mm; the flange is cut by a hot-dip galvanized steel plate with the thickness of 5mm, and the diameter of the flange is 140 mm; the umbrella-shaped supporting framework is welded by hot-dip galvanized round steel with the diameter of 6mm, the length of a main rib 2 is 30cm, the included angle between the main rib 2 and the horizontal direction is 12 degrees, and the sizes of an annular auxiliary rib 3 and a supporting rib 4 are matched with the size of the main rib.
Referring to fig. 1, a method for testing uneven aging of a shed of a composite insulator comprises the following steps:
the method comprises the following steps: an umbrella-shaped supporting framework which is the same as the umbrella skirt of the composite insulator in shape and size is built, and a plurality of umbrella-shaped supporting frameworks are arranged on the stand column 1 at certain intervals to form a test platform. In the embodiment, three layers of umbrella-shaped supporting frameworks are adopted, and the distance between every two layers is 30 cm.
Step two: the method is characterized in that a composite insulator umbrella skirt and raw material vulcanized silicone rubber are taken to manufacture aging test sample pieces 10 by the same process, the sample pieces 10 are arranged in rows on the outer surface of an umbrella-shaped supporting framework from the top center of the umbrella-shaped supporting framework towards the outer edge direction, each row of sample pieces consists of a plurality of sample pieces 10 distributed in an annular array on the outer surface of the umbrella-shaped supporting framework by taking a stand column as a central shaft, and the sample pieces are uniformly and flatly mounted on the outer surface of the umbrella-shaped supporting framework through a joist 5.
Referring to fig. 3 and 4, specifically, the sample 10 has a mounting hole matched with the fixing hole on the joist 5 in use, the two holes have the same aperture, the length, width and thickness of the sample can be pressed according to the test requirement, and the general thickness is 2-6 mm. In the embodiment, the thickness of the bracket is 5mm, the length of the bracket is 12mm, the width of the bracket is 5mm, the diameter of the mounting hole is 4mm, the distance between the center of the mounting hole and the nearest edge is 5mm, and the size of the bracket 5 is matched with that of the sample wafer 10; the sample wafer 10 and the joist 5 are fixed by a fixing needle 11, the fixing needle 11 is made of an aging-resistant and tough polymer material, the front end of the fixing needle is conical, the maximum diameter of the fixing needle is larger than that of the sample wafer mounting hole, the diameter of the tail end of the fixing needle is larger than that of the sample wafer mounting hole, and the diameter of the middle section of the fixing needle is slightly smaller than that of the mounting hole.
Step three: the test platform provided with the sample wafer 10 is placed in an outdoor typical representative environment for an aging test, and can be installed on a power transmission line tower, in a transformer substation or at other selected positions, after the test platform is installed, a compass is taken out, the south-north direction is judged, a direction indicator is fixed, a direction arrow of the direction indicator points to the south, and can also point to the north, but all the test platforms should point to the south in a unified way. And environmental sensors such as a temperature and humidity sensor, a rainfall sensor, a dust monitoring sensor and the like are arranged close to the uneven aging test platform of the umbrella skirt of the composite insulator, environmental data are recorded, and the environmental data can be transmitted back in real time and can also be acquired by workers at regular sites.
Step four: after the test period is reached, printing an umbrella-shaped support framework drawing, marking the position and the direction of a direction arrow on the printed drawing on site, taking sample pieces from the umbrella-shaped support framework piece by piece, numbering, filling sample piece numbers in corresponding positions on the drawing, and marking the number of layers of the umbrella-shaped support framework from top to bottom on the sample pieces of each layer of umbrella-shaped support framework in one drawing and close to the side of the drawing;
step five: and carrying out subsequent aging performance analysis and detection on the taken sample wafer.
Compare current test platform, the whole test process of this embodiment does not need additionally to add professional test equipment, and the test cost is low, can realize the inhomogeneous ageing simulation of full skirt. The test platform is directly arranged in a real working environment, and the aging test sample wafer which is manufactured by the same process as the composite insulator and the raw material of the vulcanized silicone rubber is adopted, so that the equivalence of the aging test and the reliability of data are ensured, the sample wafer is uniformly and detachably arranged on the outer surface of the special umbrella-shaped support framework, and the sampling is very convenient.
The above examples are merely illustrative for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (6)
1. The use method of the composite insulator umbrella skirt uneven aging test platform is characterized in that:
the test platform comprises a stand column and an umbrella-shaped support framework which is vertically arranged on the stand column and has the same shape and size as the umbrella skirt of the composite insulator, wherein sample wafers are uniformly and detachably arranged on the outer surface of the umbrella-shaped support framework, and the sample wafers are made of the same raw material silicon sulfide rubber as the composite insulator by the same process;
the use method comprises the steps of placing a test platform provided with a sample wafer in an outdoor environment for aging test, indicating the installation direction of the test platform by using a direction indicator, and recording environmental data through an environmental sensor; after the test period is reached, printing an umbrella-shaped support framework drawing, marking the position and the direction of a direction arrow on the printed drawing on site, taking sample pieces from the umbrella-shaped support framework piece by piece, numbering, filling sample piece numbers in corresponding positions on the drawing, and marking the number of layers of the umbrella-shaped support framework from top to bottom on the sample pieces of each layer of umbrella-shaped support framework in one drawing and close to the side of the drawing; and carrying out subsequent aging performance analysis and detection on the taken sample wafer.
2. The use of claim 1, wherein the environmental sensors comprise a temperature and humidity sensor, a rain sensor, and a dust monitoring sensor.
3. Use according to claim 1, characterized in that: the sample wafers are arranged in rows on the outer surface of the umbrella-shaped support framework from the top center of the umbrella-shaped support framework towards the outer edge direction, and each row of sample wafers consists of a plurality of sample wafers which are distributed on the outer surface of the umbrella-shaped support framework in an annular array mode by taking the stand column as a central shaft.
4. Use according to claim 3, characterized in that: the umbrella-shaped supporting framework comprises main bones, annular auxiliary bones and supporting bones, wherein the annular auxiliary bones are sequentially connected with the main bones in series, and the supporting bones are obliquely supported and installed between the annular auxiliary bones and the upright posts.
5. Use according to claim 4, characterized in that: the main bone is transversely provided with a joist, and two ends of the sample wafer are lapped on the joist and are assembled and connected through fixing pins.
6. Use according to claim 1, characterized in that: the sample is square.
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| CN113066622B (en) * | 2021-03-25 | 2021-11-05 | 浙江深华颖智能科技有限公司 | High-source-voltage outdoor ultraviolet-proof large-creepage-distance insulator equipment and production process |
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| JP4137480B2 (en) * | 2002-03-27 | 2008-08-20 | 日本碍子株式会社 | Polymer insulator |
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