CN109727735B - Disk-shaped suspension type glass insulator and anti-pollution flashover coating application method thereof - Google Patents
Disk-shaped suspension type glass insulator and anti-pollution flashover coating application method thereof Download PDFInfo
- Publication number
- CN109727735B CN109727735B CN201811516402.1A CN201811516402A CN109727735B CN 109727735 B CN109727735 B CN 109727735B CN 201811516402 A CN201811516402 A CN 201811516402A CN 109727735 B CN109727735 B CN 109727735B
- Authority
- CN
- China
- Prior art keywords
- glass
- disk
- shaped suspension
- insulator
- glass piece
- 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.)
- Active
Links
- 239000011521 glass Substances 0.000 title claims abstract description 246
- 239000012212 insulator Substances 0.000 title claims abstract description 132
- 238000000576 coating method Methods 0.000 title claims abstract description 99
- 239000000725 suspension Substances 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000011248 coating agent Substances 0.000 title claims description 88
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 229910052742 iron Inorganic materials 0.000 claims abstract description 30
- 239000003973 paint Substances 0.000 claims abstract description 8
- 238000004880 explosion Methods 0.000 abstract description 74
- 230000007547 defect Effects 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 230000003373 anti-fouling effect Effects 0.000 description 17
- 238000010891 electric arc Methods 0.000 description 15
- 229920002379 silicone rubber Polymers 0.000 description 8
- 239000004945 silicone rubber Substances 0.000 description 8
- 239000004568 cement Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The invention discloses a disk-shaped suspension type glass insulator and an anti-pollution flashover coating method thereof. When the surface of a glass piece of a disk-shaped suspension glass insulator is coated with anti-pollution flashover paint, an uncoated annular area taking the axial center line of the disk-shaped suspension glass insulator as a center is arranged on the surface of the glass piece between an iron cap and a steel foot, wherein 1 uncoated annular area is arranged on one surface of the glass piece, 1 uncoated annular area is arranged on the other surface of the glass piece, and all or part of the uncoated annular area on one surface corresponds to all or part of the uncoated annular area on the other surface of the glass piece in a positive direction relative to the surface of the glass piece. The method is beneficial to preventing pollution flashover of the disc-shaped suspension type glass insulator, is beneficial to preventing small electric arcs of the disc-shaped suspension type glass insulator from self-explosion, can improve the falling rate and the deformation degree of the self-explosion glass piece of the disc-shaped suspension type glass insulator, and is beneficial to finding the self-explosion defect of the disc-shaped suspension type glass insulator in a long distance.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to a disk-shaped suspension glass insulator and an anti-pollution flashover coating method thereof.
Background
This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
(1) The disk-shaped suspension glass insulator (glass insulator for short) is one of widely used insulator types of overhead transmission lines, and the surface of a glass piece of the glass insulator is hydrophilic, so that the pollution flashover resistance of the glass insulator is low. The glass insulator is coated with normal temperature vulcanized silicone rubber anti-pollution flashover coating (abbreviated as anti-pollution flashover coating), and a hydrophobic normal temperature vulcanized silicone rubber anti-pollution flashover coating (abbreviated as anti-pollution flashover coating) is formed on the surface of the glass member, so that the glass insulator anti-pollution flashover coating is a main measure for improving the pollution flashover voltage of the glass insulator and preventing the pollution flashover of the glass insulator. Increasing the thickness of the anti-fouling flashover coating is an effective means of increasing the operational life of the anti-fouling flashover coating.
(2) The self-explosion is a main defect form of the glass insulator, and the self-explosion glass piece can be automatically separated from and scattered from a residual hammer of the glass insulator, so that line operators can conveniently find the self-explosion defect in a long distance, and the self-explosion glass piece is a great technical advantage of the glass insulator. But operational experience has shown that: after the glass insulator with part of the anti-pollution flashover coating is self-exploded, the self-exploded glass piece is difficult to separate from an insulator residual hammer and cannot form obvious deformation, which is caused by the binding force of the anti-pollution flashover coating on the self-exploded glass piece, so that the self-explosion defect is not easily found by line operators in a long distance, and the thicker the anti-pollution flashover coating is, the more serious the problem is, so that the anti-pollution flashover coating becomes a negative factor of the glass insulator with the anti-pollution flashover coating.
(3) The disk-shaped suspension glass insulator self-explosion forms well known and commonly accepted by those skilled in the art include product quality self-explosion, steep wave self-explosion and power frequency large arc self-explosion; however, in recent years, glass insulators operating in heavy-pollution areas under heavy rain and heavy rain frequently have the defects of self-explosion which are different in past and relatively centralized in time and space, and relate to national power grids such as Jibei, hebei, shanxi, liaoning, jiangsu, zhejiang, hubei, guangxi and the like and foreign power grids such as Egypt, vietnam and the like. The small electric arc self-explosion of part of the glass insulators even directly causes the tripping of the line, and the threat to the power grid is greatly higher than that of the steep wave self-explosion and the power frequency large electric arc self-explosion. According to the characteristic of relative centralization of time and space, the self-explosion is initially called centralization self-explosion; the later period is also called small arc self-explosion along with the disclosure of the self-explosion principle, so as to be different from the power frequency large arc self-explosion possibly caused by insulator flashover tripping. The North China electric department first develops the experimental study of the small arc self-explosion of the glass insulator at home and abroad, reveals the mechanism of the small arc self-explosion, and provides the following notice and prevention measures: (a) The relative concentration of high and low temperature points of action caused by the alternating action of sufficient water, electric arcs with ultra-high temperature differences and rainwater on the surface of the glass piece and the boss of the glass piece adjacent to the insulator steel feet is three factors of self-explosion. (b) The anti-pollution flashover coating can isolate direct contact between high-temperature electric arcs and low-temperature rainwater and glass pieces, can effectively inhibit the occurrence of small electric arc self-explosion, and lays a foundation for implementing small electric arc self-explosion prevention and treatment measures based on the anti-pollution flashover coating. (c) Since the glass boss adjacent to the insulator steel foot causes a relative concentration of high and low temperature action points, which is the starting point for the self-explosion of most small electric arcs, the glass boss area adjacent to the steel foot must be covered with a coating, and the coating at the area is suitably thickened to enhance the protection effect of the area.
(4) Solutions for pollution flashover prevention, small electric arc self-explosion and self-explosion glass piece falling-off performance of glass insulators are mutually contradictory to each other, for example: the anti-pollution flashover and small arc self-explosion performance requires that the thicker the anti-pollution flashover coating on the surface of the glass piece is, the better; however, the stripping performance of the self-explosion glass piece requires that the thinner the anti-pollution flashover coating on the surface of the glass piece is, the better. Therefore, the solution for the above 3 properties of the glass insulator must be designed comprehensively and with reasonable trade-offs.
Disclosure of Invention
The embodiment of the invention provides an anti-pollution flashover coating method for a disk-shaped suspension glass insulator, which is used for effectively preventing pollution flashover and small electric arc self-explosion of the disk-shaped suspension glass insulator and improving the falling rate and deformation degree of a self-explosion glass piece of the disk-shaped suspension glass insulator so as to be beneficial to finding the self-explosion defect of the disk-shaped suspension glass insulator in a long distance, and comprises the following steps:
when the surface of a glass piece of the disk-shaped suspension glass insulator is coated with the anti-pollution flashover coating, an uncoated annular area taking the axial center line of the disk-shaped suspension glass insulator as the center of a circle is arranged on the surface of the glass piece between an iron cap and a steel foot of the disk-shaped suspension glass insulator;
wherein, 1 uncoated annular region sets up in the one side of glass spare, and 1 uncoated annular region sets up in the another side of glass spare, and the whole or part of uncoated annular region of one side corresponds with the whole or part of uncoated annular region of another side in the positive direction relative to glass spare surface.
Wherein, the surface of the boss area of the glass piece adjacent to the steel foot of the disk-shaped suspension glass insulator is coated with anti-pollution flashover paint.
The embodiment of the invention also provides a disk-shaped suspension glass insulator, which is used for effectively preventing pollution flashover and small electric arc self-explosion of the disk-shaped suspension glass insulator and improving the falling rate and the deformation degree of a self-explosion glass piece of the disk-shaped suspension glass insulator so as to be beneficial to finding the self-explosion defect of the disk-shaped suspension glass insulator in a long distance, and comprises the following steps:
the surface of the glass piece of the disk-shaped suspension glass insulator is coated with anti-pollution flashover paint, and an uncoated annular area taking the axial center line of the disk-shaped suspension glass insulator as the center of a circle is arranged on the surface of the glass piece between the iron cap and the steel foot of the disk-shaped suspension glass insulator;
wherein, 1 uncoated annular region sets up in the one side of glass spare, and 1 uncoated annular region sets up in the another side of glass spare, and the whole or part of uncoated annular region of one side corresponds with the whole or part of uncoated annular region of another side in the positive direction relative to glass spare surface.
Wherein, the surface of the boss area of the glass piece adjacent to the steel foot of the disk-shaped suspension glass insulator is coated with anti-pollution flashover paint.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic illustration of non-positive correspondence of uncoated areas on the upper and lower surfaces of a glass article in accordance with an embodiment of the invention;
FIG. 2 is a schematic view of the forward correspondence of uncoated areas on the upper and lower surfaces of a glass article according to an embodiment of the invention;
fig. 3 is an embodiment of the anti-fouling flashover coating application method of the double umbrella disk-shaped suspension glass insulator of the present invention with 1 uncoated annular region immediately adjacent to the iron cap.
Fig. 4 is an embodiment of an anti-flashover coating application method of a double umbrella disk-shaped suspension glass insulator of the present invention with an uncoated annular region not adjacent to the iron cap and steel foot.
Fig. 5 is an example of an anti-fouling flashover coating application method of a three umbrella disk-shaped suspension glass insulator of the invention with 1 uncoated annular region immediately adjacent to the iron cap.
Fig. 6 is an embodiment of an anti-flashover coating application method of a triple umbrella disk-shaped suspension glass insulator of the present invention with an uncoated annular region not adjacent to the iron cap and steel foot.
Fig. 7 is an embodiment of the anti-flashover coating application method of the present invention with 1 uncoated annular region immediately adjacent to the trough-shaped disk-shaped suspension glass insulator of the iron cap.
Fig. 8 is an embodiment of an anti-flashover coating application method of a groove-shaped disc-shaped suspension glass insulator of the present invention with an uncoated annular region not adjacent to the iron cap and steel foot.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings. The exemplary embodiments of the present invention and their descriptions herein are for the purpose of explaining the present invention, but are not to be construed as limiting the invention.
The anti-pollution flashover coating is coated on the surface of the glass piece of the disk-shaped suspension glass insulator, so that the surface of the disk-shaped suspension glass insulator is changed from hydrophilicity to hydrophobicity, and the pollution flashover voltage and the anti-pollution flashover performance of the disk-shaped suspension glass insulator are greatly improved. The inventors found that increasing the thickness of the anti-flashover coating on the surface of the glass piece of the disk-shaped suspension glass insulator is advantageous for increasing the operational lifetime of the anti-flashover coating. Current in-situ anti-fouling flashover coating construction requires a coating thickness of 0.3mm, which is a compromise parameter that has to be taken for practical difficulties in-situ construction, which thickness is in fact difficult to achieve in-situ construction. However, the inventors have found that the coating thickness can be easily increased to 0.5mm or more by the dip coating process of the factory-built insulator.
In the process of realizing the invention, the inventor has studied the small electric arc self-explosion mechanism of the disk-shaped suspension glass insulator and adopted a reasonable anti-pollution flashover coating method to solve the difficult problem of small electric arc self-explosion. Aiming at the defect of frequent occurrence of self-explosion in the disk-shaped suspended glass insulator of the domestic and foreign power grids, the inventor discovers that the mechanism of small electric arc self-explosion, namely, sufficient water quantity, electric arc with ultra-high temperature difference and rainwater alternately act on the surface of a glass piece, and the relative concentration of high and low temperature action points caused by the boss of the glass piece, is three factors of small electric arc self-explosion, and especially the inherent boss of the glass piece adjacent to a steel foot of the disk-shaped suspended glass insulator becomes the main starting point and the weak point of small electric arc self-explosion. The research clarifies that the anti-pollution flashover coating is not a cause of small arc self-explosion, verifies that the anti-pollution flashover coating coated on the surface of the glass piece boss area can prevent external high-temperature electric arc and low-temperature rainwater from directly contacting with the glass piece boss area, and avoids the alternate high-low temperature difference on the surface of the glass piece, so that the occurrence of small arc self-explosion can be effectively inhibited, and lays a foundation for providing the implementation of small arc self-explosion prevention measures based on the anti-pollution flashover coating on the surface of the glass piece, especially the glass piece boss area adjacent to the steel foot.
The inventor also focuses on researching the binding effect of the anti-pollution flashover coating on the self-explosion glass piece of the disk-shaped suspension glass insulator in the process of realizing the invention, designs a series of glass insulator samples which are formed by the falling of the self-explosion glass piece and comprise the variables of coating thickness, coating area and the like, obtains the falling effect of the self-explosion glass piece of various coating schemes, and discovers that the thicker the anti-pollution flashover coating is, the stronger the binding effect on the self-explosion glass piece is, and is not beneficial to the falling and deformation of the self-explosion glass piece; the anti-pollution flashover coating on the surface of the glass piece in a continuous state is not beneficial to the detachment and deformation of the self-explosion glass piece; as shown in fig. 1, when the uncoated areas 3 on the two sides of the glass piece 1 are in a non-forward corresponding state, the detachment and deformation of the self-explosion glass piece are not facilitated; as shown in fig. 2, the uncoated areas 3 on both sides of the glass member 1 are in a forward corresponding state, which is advantageous for detachment and deformation of the self-explosion glass member. However, when a specific measure is selected, the inventor negates the measure of reducing the thickness of the anti-pollution flashover coating and sacrificing the service life of the anti-pollution flashover coating in the prior art; the surface of the glass piece between the iron cap and the steel feet of the disk-shaped suspension glass insulator is provided with an uncoated annular area taking the axial central line of the disk-shaped suspension glass insulator as a circle center, so that the continuity of the anti-pollution flashover coating is cut off, and the binding force of the anti-pollution flashover coating on the self-explosion glass piece is reduced; the glass piece is characterized in that 1 uncoated annular area is arranged on one surface of the glass piece, 1 uncoated annular area is arranged on the other surface of the glass piece, all or part of the uncoated annular area on one surface corresponds to all or part of the uncoated annular area on the other surface in a positive direction relative to the surface of the glass piece, and the aim of arranging a weak point which is easy to break on the self-explosion glass piece is to ensure that the self-explosion glass piece breaks away from an insulator residual weight or forms larger deformation, so that the self-explosion defect of the disc-shaped suspension glass insulator can be found in a long distance.
The anti-pollution flashover paint relates to the factors such as the anti-pollution flashover performance, the small electric arc self-explosion performance, the self-explosion glass piece falling-off performance and the like of a disk-shaped suspension glass insulator, and the solutions of the performances need to be comprehensively considered and reasonably selected. The inventor provides an importance sequencing principle of the pollution flashover resistance, the small arc self-explosion performance and the falling-off performance of the self-explosion glass piece of the disk-shaped suspension glass insulator according to actual operation requirements, and designs technical parameters of the disk-shaped suspension glass insulator coated with the pollution flashover resistance paint according to the principle so as to ensure compromise, optimization and promotion of all performances, and provides a new choice of high comprehensive performance for the external insulation configuration of power transmission and transformation engineering design and construction links.
In an embodiment of an anti-pollution flashover coating application method of a double umbrella-shaped disk-shaped suspension glass insulator, as shown in fig. 3, 2 uncoated annular areas 35 and 36 taking the axial center line of the glass insulator as a center are arranged on the surface of a glass piece 34 between a iron cap 31 and a steel foot 32, wherein one uncoated annular area 35 is arranged on the upper surface of the glass piece close to the iron cap and has a width of 25-30 mm, and the other uncoated annular area 36 is arranged on the lower surface of the glass piece and has a width of 15-20 mm; the 2 uncoated annular regions 35 and 36 correspond positively with respect to the glass piece surface; the surfaces of the glass pieces outside the uncoated annular areas 35 and 36 are coated with an anti-fouling flashover coating of not less than 0.5mm thickness; to enhance protection against small arc self-explosion of the glass insulator, the glass piece boss region 37 adjacent to the steel foot 32 is coated with an anti-flashover coating of 0.5mm to 1.0mm thickness, thereby preventing the silicone rubber component of the glass piece surface anti-flashover coating of the disk-shaped suspended glass insulator from being consumed too quickly during operation, leaving the anti-flashover coating intact for a longer operation time, and preventing small arc self-explosion of the disk-shaped suspended glass insulator. The surfaces of the metal parts such as the iron cap 31, the steel feet 32 and the like of the disk-shaped suspension glass insulator are free of anti-pollution flashover coatings. The anti-fouling flashover coating of the cementing cement 33 surface of the disk-shaped suspension glass insulator is not required.
In an embodiment of an anti-pollution flashover coating application method of a double umbrella-shaped disk-shaped suspension glass insulator, as shown in fig. 4, 2 uncoated annular areas 35 and 36 centered on the axial center line of the glass insulator are arranged on the surface of a glass piece 34 between a iron cap 31 and a steel foot 32, the uncoated annular areas 35 and 36 are not adjacent to the iron cap and the steel foot, and the 2 uncoated annular areas 35 and 36 positively correspond to the surface of the glass piece; the surfaces of the glass pieces outside the uncoated annular areas 35 and 36 are coated with an anti-fouling flashover coating of not less than 0.5mm thickness; to enhance protection against small arc self-explosion of the glass insulator, the glass piece boss region 37 adjacent to the steel foot 32 is coated with an anti-flashover coating of 0.5mm to 1.0mm thickness, thereby preventing the silicone rubber component of the glass piece surface anti-flashover coating of the disk-shaped suspended glass insulator from being consumed too quickly during operation, leaving the anti-flashover coating intact for a longer operation time, and preventing small arc self-explosion of the disk-shaped suspended glass insulator. The surfaces of the metal parts such as the iron cap 31, the steel feet 32 and the like of the disk-shaped suspension glass insulator are free of anti-pollution flashover coatings. The anti-fouling flashover coating of the cementing cement 33 surface of the disk-shaped suspension glass insulator is not required.
In an embodiment of an anti-pollution flashover coating application method of a three umbrella-shaped disk-shaped suspension glass insulator, as shown in fig. 5, 2 uncoated annular areas 35 and 36 taking the axial center line of the glass insulator as a center are arranged on the surface of a glass piece 34 between a iron cap 31 and a steel foot 32, wherein one uncoated annular area 35 is arranged on the upper surface of the glass piece close to the iron cap and has a width of 25-30 mm, and the other uncoated annular area 36 is arranged on the lower surface of the glass piece and has a width of 15-20 mm; the 2 uncoated annular regions 35 and 36 correspond positively with respect to the glass piece surface; the surfaces of the glass pieces outside the uncoated annular areas 35 and 36 are coated with an anti-fouling flashover coating of not less than 0.5mm thickness; to enhance protection against small arc self-explosion of the glass insulator, the glass piece boss region 37 adjacent to the steel foot 32 is coated with an anti-flashover coating of 0.5mm to 1.0mm thickness, thereby preventing the silicone rubber component of the glass piece surface anti-flashover coating of the disk-shaped suspended glass insulator from being consumed too quickly during operation, leaving the anti-flashover coating intact for a longer operation time, and preventing small arc self-explosion of the disk-shaped suspended glass insulator. The surfaces of the metal parts such as the iron cap 31, the steel feet 32 and the like of the disk-shaped suspension glass insulator are free of anti-pollution flashover coatings. The anti-fouling flashover coating of the cementing cement 33 surface of the disk-shaped suspension glass insulator is not required.
In an embodiment of an anti-pollution flashover coating application method of a three umbrella-shaped disk-shaped suspension glass insulator, as shown in fig. 6, 2 uncoated annular regions 35 and 36 centered on the axial center line of the glass insulator are arranged on the surface of a glass piece 34 between a iron cap 31 and a steel foot 32, none of the uncoated annular regions 35 and 36 is adjacent to the iron cap and the steel foot, and the 2 uncoated annular regions 35 and 36 positively correspond to the surface of the glass piece; the surfaces of the glass pieces outside the uncoated annular areas 35 and 36 are coated with an anti-fouling flashover coating of not less than 0.5mm thickness; to enhance protection against small arc self-explosion of the glass insulator, the glass piece boss region 37 adjacent to the steel foot 32 is coated with an anti-flashover coating of 0.5mm to 1.0mm thickness, thereby preventing the silicone rubber component of the glass piece surface anti-flashover coating of the disk-shaped suspended glass insulator from being consumed too quickly during operation, leaving the anti-flashover coating intact for a longer operation time, and preventing small arc self-explosion of the disk-shaped suspended glass insulator. The surfaces of the metal parts such as the iron cap 31, the steel feet 32 and the like of the disk-shaped suspension glass insulator are free of anti-pollution flashover coatings. The anti-fouling flashover coating of the cementing cement 33 surface of the disk-shaped suspension glass insulator is not required.
In an embodiment of an anti-pollution flashover coating application method of a groove-shaped disk-shaped suspension glass insulator, as shown in fig. 7, 2 uncoated annular areas 35 and 36 taking the axial center line of the glass insulator as a center are arranged on the surface of a glass piece 34 between a iron cap 31 and a steel foot 32, wherein one uncoated annular area 35 is arranged on the upper surface of the glass piece close to the iron cap and has a width of 25-30 mm, and the other uncoated annular area 36 is arranged on the lower surface of the glass piece and has a width of 15-20 mm; the 2 uncoated annular regions 35 and 36 correspond positively with respect to the glass piece surface; the surfaces of the glass pieces outside the uncoated annular areas 35 and 36 are coated with an anti-fouling flashover coating of not less than 0.5mm thickness; to enhance protection against small arc self-explosion of the glass insulator, the glass piece boss region 37 adjacent to the steel foot 32 is coated with an anti-flashover coating of 0.5mm to 1.0mm thickness, thereby preventing the silicone rubber component of the glass piece surface anti-flashover coating of the disk-shaped suspended glass insulator from being consumed too quickly during operation, leaving the anti-flashover coating intact for a longer operation time, and preventing small arc self-explosion of the disk-shaped suspended glass insulator. The surfaces of the metal parts such as the iron cap 31, the steel feet 32 and the like of the disk-shaped suspension glass insulator are free of anti-pollution flashover coatings. The anti-fouling flashover coating of the cementing cement 33 surface of the disk-shaped suspension glass insulator is not required.
In an embodiment of an anti-pollution flashover coating application method of a groove-shaped disk-shaped suspension glass insulator, as shown in fig. 8, 2 uncoated annular regions 35 and 36 centered on the axial center line of the glass insulator are arranged on the surface of a glass piece 34 between a iron cap 31 and a steel foot 32, none of the uncoated annular regions 35 and 36 is adjacent to the iron cap and the steel foot, and the 2 uncoated annular regions 35 and 36 positively correspond to the surface of the glass piece; the surfaces of the glass pieces outside the uncoated annular areas 35 and 36 are coated with an anti-fouling flashover coating of not less than 0.5mm thickness; to enhance protection against small arc self-explosion of the glass insulator, the glass piece boss region 37 adjacent to the steel foot 32 is coated with an anti-flashover coating of 0.5mm to 1.0mm thickness, thereby preventing the silicone rubber component of the glass piece surface anti-flashover coating of the disk-shaped suspended glass insulator from being consumed too quickly during operation, leaving the anti-flashover coating intact for a longer operation time, and preventing small arc self-explosion of the disk-shaped suspended glass insulator. The surfaces of the metal parts such as the iron cap 31, the steel feet 32 and the like of the disk-shaped suspension glass insulator are free of anti-pollution flashover coatings. The anti-fouling flashover coating of the cementing cement 33 surface of the disk-shaped suspension glass insulator is not required.
Based on the same inventive concept, the embodiment of the invention also provides a disk-shaped suspension glass insulator. The principle of solving the problem of the disc-shaped suspended glass insulator is similar to that of the disc-shaped suspended glass insulator, so that the implementation of the disc-shaped suspended glass insulator can be referred to the implementation of the disc-shaped suspended glass insulator anti-pollution flashover coating method, and repeated parts are omitted.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (2)
1. The method for coating the anti-pollution flashover paint on the disc-shaped suspension type glass insulator is characterized by comprising the following steps of:
when the surface of a glass piece of the disk-shaped suspension glass insulator is coated with the anti-pollution flashover coating, an uncoated annular area taking the axial center line of the disk-shaped suspension glass insulator as the center of a circle is arranged on the surface of the glass piece between an iron cap and a steel foot of the disk-shaped suspension glass insulator;
wherein, 1 uncoated annular region is arranged on one surface of the glass piece, 1 uncoated annular region is arranged on the other surface of the glass piece, and all or part of the uncoated annular region on one surface corresponds to all or part of the uncoated annular region on the other surface positively relative to the surface of the glass piece;
the surface of the glass piece boss area adjacent to the steel foot of the disk-shaped suspension glass insulator is coated with 0.5-1.0 mm of anti-pollution flashover coating, and the surface of the glass piece except the glass piece boss area adjacent to the steel foot of the disk-shaped suspension glass insulator and the uncoated annular area is coated with the anti-pollution flashover coating with the thickness of not less than 0.5 mm.
2. A disk-shaped suspension glass insulator, comprising:
the surface of the glass piece of the disk-shaped suspension glass insulator is coated with anti-pollution flashover paint, and an uncoated annular area taking the axial center line of the disk-shaped suspension glass insulator as the center of a circle is arranged on the surface of the glass piece between the iron cap and the steel foot of the disk-shaped suspension glass insulator;
wherein, 1 uncoated annular region is arranged on one surface of the glass piece, 1 uncoated annular region is arranged on the other surface of the glass piece, and all or part of the uncoated annular region on one surface corresponds to all or part of the uncoated annular region on the other surface positively relative to the surface of the glass piece;
the surface of the glass piece boss area adjacent to the steel foot of the disk-shaped suspension glass insulator is coated with 0.5-1.0 mm of anti-pollution flashover coating, and the surface of the glass piece except the glass piece boss area adjacent to the steel foot of the disk-shaped suspension glass insulator and the uncoated annular area is coated with the anti-pollution flashover coating with the thickness of not less than 0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811516402.1A CN109727735B (en) | 2018-12-12 | 2018-12-12 | Disk-shaped suspension type glass insulator and anti-pollution flashover coating application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811516402.1A CN109727735B (en) | 2018-12-12 | 2018-12-12 | Disk-shaped suspension type glass insulator and anti-pollution flashover coating application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109727735A CN109727735A (en) | 2019-05-07 |
| CN109727735B true CN109727735B (en) | 2024-03-26 |
Family
ID=66295338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811516402.1A Active CN109727735B (en) | 2018-12-12 | 2018-12-12 | Disk-shaped suspension type glass insulator and anti-pollution flashover coating application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109727735B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509591A (en) * | 2011-10-21 | 2012-06-20 | 天津市新玻电力复合绝缘子制造有限公司 | Composite insulator |
| CN205692639U (en) * | 2016-06-17 | 2016-11-16 | 昆明理工大电力工程技术有限公司 | A kind of antifouling flash insulator |
| CN108520810A (en) * | 2018-06-11 | 2018-09-11 | 贵州电网有限责任公司 | A kind of glass insulator and its processing method of the function that falls off with anti-self-destruction |
| CN209029175U (en) * | 2018-12-12 | 2019-06-25 | 国网冀北电力有限公司电力科学研究院 | A kind of disk-shaped suspension glass insulator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736645B (en) * | 2013-12-02 | 2015-02-18 | 国网山西省电力公司晋中供电公司 | RTV anti-pollution flashover coating recoating method of insulator coated with RTV anti-pollution flashover coating |
-
2018
- 2018-12-12 CN CN201811516402.1A patent/CN109727735B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509591A (en) * | 2011-10-21 | 2012-06-20 | 天津市新玻电力复合绝缘子制造有限公司 | Composite insulator |
| CN205692639U (en) * | 2016-06-17 | 2016-11-16 | 昆明理工大电力工程技术有限公司 | A kind of antifouling flash insulator |
| CN108520810A (en) * | 2018-06-11 | 2018-09-11 | 贵州电网有限责任公司 | A kind of glass insulator and its processing method of the function that falls off with anti-self-destruction |
| CN209029175U (en) * | 2018-12-12 | 2019-06-25 | 国网冀北电力有限公司电力科学研究院 | A kind of disk-shaped suspension glass insulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109727735A (en) | 2019-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103700452B (en) | Corona loss and Electromagnetic Interference and the insulator of raising gold utensil efficiency of preservation can be reduced | |
| CN109727735B (en) | Disk-shaped suspension type glass insulator and anti-pollution flashover coating application method thereof | |
| US3192312A (en) | Ceramic suspension insulator with an elastomeric boot | |
| CN209029175U (en) | A kind of disk-shaped suspension glass insulator | |
| CN203774020U (en) | Overhead line umbrella group disc type suspension insulator | |
| US6613985B2 (en) | Suspension insulator | |
| CN108389664B (en) | Extra-high voltage direct current disc type suspension insulator capable of inhibiting corrosion of metal electrode | |
| CN207458685U (en) | It can inhibit the extra-high voltage direct-current plate-shaped suspension type insulator of metal electrode corrosion | |
| CN204596554U (en) | Improve device and the suspension insulator of suspension insulator pollution flashover performance | |
| CN204178831U (en) | A kind of lightning protection porcelain insulator | |
| CN203787230U (en) | Insulator capable of reducing corona loss and electromagnetic wave interference and improving anticorrosion capability of hardware fittings | |
| CN208607978U (en) | Plate-shaped suspension type insulator | |
| Liu et al. | Flashover performance of porcelain post insulator with full-clad booster shed | |
| RU86036U1 (en) | LINEAR SUSPENDING INSULATOR | |
| CN104252927A (en) | Combined type strain insulator string with composite insulator of overhead transmission line | |
| CN104972268A (en) | Repairing method for butterfly valve leakage | |
| RU139774U1 (en) | LINEAR SUSPENSION LENGTH ROD PORCELAIN INSULATOR | |
| CN208240422U (en) | A kind of bar-shaped composite insulator high-voltage end grading ring component | |
| CN104733136A (en) | Direct-current disk-shaped suspension type ceramic and glass insulator | |
| RU88196U1 (en) | CLASS 210 LINEAR SUSPENDING INSULATOR | |
| CN219321116U (en) | Open type insulating cladding equalizing ring | |
| CN204215824U (en) | A kind of overhead power transmission line composite insulator composite type strain insulator-string | |
| CN103123832B (en) | A kind of ultra-high/extra-high voltage exchanges umbrella structure of composite insulator | |
| CN202473428U (en) | Cap and pin electric insulator, suspension insulator string and strain insulator string | |
| WO2018150671A1 (en) | Water-repellent insulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |