CN112180073A - Evaluation method and device for judging pulverization degree of composite insulator silicon rubber part - Google Patents
Evaluation method and device for judging pulverization degree of composite insulator silicon rubber part Download PDFInfo
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- 239000012212 insulator Substances 0.000 title claims abstract description 283
- 239000002131 composite material Substances 0.000 title claims abstract description 280
- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 214
- 238000010298 pulverizing process Methods 0.000 title claims abstract description 96
- 238000011156 evaluation Methods 0.000 title claims abstract description 18
- 238000012423 maintenance Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000000877 morphologic effect Effects 0.000 claims abstract description 8
- 239000004945 silicone rubber Substances 0.000 claims description 35
- 238000012360 testing method Methods 0.000 claims description 15
- 238000005070 sampling Methods 0.000 claims description 10
- 238000005562 fading Methods 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 6
- 230000002087 whitening effect Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000000227 grinding Methods 0.000 abstract description 12
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
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- 238000004590 computer program Methods 0.000 description 7
- 230000003993 interaction Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N19/00—Investigating materials by mechanical methods
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention discloses an evaluation method and device for judging the pulverization degree of a composite insulator silicon rubber piece. The method comprises the following steps: determining corresponding pulverization grading of the composite insulator silicon rubber piece according to the obtained appearance morphological characteristics of the composite insulator silicon rubber piece; determining the material characteristics and/or the mechanical properties corresponding to the composite insulator silicon rubber part according to the corresponding pulverization grading of the composite insulator silicon rubber part; and judging the running state corresponding to the composite insulator silicon rubber part according to the corresponding pulverization classification of the composite insulator silicon rubber part, and generating an operation and maintenance strategy. The method can quickly evaluate the powdering state of the composite insulator silicon rubber shed and the protective sleeve, help scientific researchers and field operators to judge the operating characteristics of the composite insulator and provide a method for selecting a proper replacement scheme.
Description
Technical Field
The invention belongs to the technical field of composite insulators, and particularly relates to an evaluation method and device for judging the pulverization degree of a silicone rubber part of a composite insulator.
Background
The composite insulator is used for connecting conductors with different electric potentials in a power transmission line, plays a key role in line insulation and load support, and bears the combined action of an electric field and mechanical stress. With the lapse of time and the long-term action of environmental stress, the silicone rubber shed and the sheath of the composite insulator can have the phenomenon of material pulverization. At present, the relevance between the composite insulator silicon rubber pulverization degree and the overall electromechanical characteristic change of the composite insulator is not established; there are also no operational maintenance strategies and replacement criteria for composite insulators that have been pulverized.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an evaluation method and device for judging the pulverization degree of a composite insulator silicon rubber piece, and aims to solve the problem that in the prior art, no operation maintenance strategy or replacement criterion is used for pulverized composite insulators.
In a first aspect, the invention provides an evaluation method for judging the powdering degree of a composite insulator silicone rubber piece, which comprises the following steps:
determining corresponding pulverization grading of the composite insulator silicon rubber piece according to the obtained appearance morphological characteristics of the composite insulator silicon rubber piece;
determining the material characteristics and/or the mechanical properties corresponding to the composite insulator silicon rubber part according to the corresponding pulverization grading of the composite insulator silicon rubber part;
and judging the running state corresponding to the composite insulator silicon rubber part according to the corresponding pulverization classification of the composite insulator silicon rubber part, and generating an operation and maintenance strategy.
In a second aspect, the present invention provides an evaluation device for judging powdering degree of a composite insulator silicone rubber member, comprising:
the pulverization grading determination unit is used for determining pulverization grading corresponding to the composite insulator silicon rubber piece according to the obtained appearance morphological characteristics of the composite insulator silicon rubber piece;
the characteristic and performance determining unit is used for determining the material characteristics and/or the mechanical properties corresponding to the composite insulator silicon rubber part according to the corresponding pulverization grading of the composite insulator silicon rubber part;
and the operation state and operation and maintenance judging unit is used for judging the operation state corresponding to the composite insulator silicon rubber part according to the pulverization grading corresponding to the composite insulator silicon rubber part and generating an operation and maintenance strategy.
The invention provides an evaluation method and device for judging the pulverization degree of a composite insulator silicone rubber piece, which can quickly evaluate the pulverization state of the composite insulator silicone rubber piece, can help scientific research workers and field operators to judge the operation characteristics of the composite insulator and provide a method for selecting a proper replacement scheme.
Drawings
A more complete understanding of exemplary embodiments of the present invention may be had by reference to the following drawings in which:
fig. 1 is a schematic flow chart of an evaluation method for judging the powdering degree of a composite insulator silicone rubber piece according to a preferred embodiment of the present invention;
FIG. 2 is a schematic composition diagram of an evaluation device for judging the powdering degree of a composite insulator silicone rubber piece according to a preferred embodiment of the invention;
fig. 3 is a reference picture for determining classification of degree of pulverization by an appearance detection method in the evaluation method for judging degree of pulverization of a composite insulator silicone rubber member according to the preferred embodiment of the present invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
The composite insulator comprises a core rod and a silicon rubber piece sleeved on the core rod. When the two layers of the shape and the area are divided or distinguished, the silicon rubber piece can be divided into the umbrella skirt and the sheath.
In the following description, the silicone rubber member is used to refer to an integrated structural member sleeved outside the core rod and made of silicone rubber. In the existing preparation process, the silicon rubber part is connected with the composite insulator core rod in an adhering mode, and the silicon rubber part and the composite insulator core rod are connected in an irreversible, undetachable and replaceable mode. Therefore, the maintenance system is replaced as a whole. Namely, no matter the core rod is damaged, or the silicon rubber part is pulverized, the corresponding maintenance scheme is that the composite insulator is integrally replaced.
As shown in fig. 1, the evaluation method for judging the powdering degree of silicone rubber for a composite insulator according to the embodiment of the present invention includes:
step S100: determining corresponding pulverization grading of the composite insulator silicon rubber piece according to the obtained appearance morphological characteristics of the composite insulator silicon rubber piece;
step S200: determining the material characteristics and/or the mechanical properties corresponding to the composite insulator silicon rubber part according to the corresponding pulverization grading of the composite insulator silicon rubber part;
step S300: and judging the running state corresponding to the composite insulator silicon rubber part according to the corresponding pulverization classification of the composite insulator silicon rubber part, and generating an operation and maintenance strategy.
Specifically, according to the appearance morphological characteristics of the composite insulator silicon rubber piece, the corresponding pulverization classification of the composite insulator silicon rubber piece is determined, and the method comprises the following steps:
when the appearance of the composite insulator silicon rubber part is not obviously changed and light-colored or white cracks do not appear on the surface after the composite insulator is bent, determining that the composite insulator silicon rubber part is pulverized to 1 grade;
when the appearance of the composite insulator silicon rubber part is not obviously changed, the umbrella skirt is smooth and has no fading phenomenon, but light color or white cracks appear on the surface of the composite insulator after being bent, the composite insulator silicon rubber part is determined to be pulverized by grade 2;
when the appearance of the composite insulator silicon rubber part is obviously changed, the edge of the umbrella skirt is obviously faded and whitened, and the umbrella skirt is rough and cracked, the composite insulator silicon rubber part is determined to be pulverized by 3 grades;
when the phenomena of fading and whitening of the whole umbrella skirt of the composite insulator silicon rubber part occur and the umbrella skirt is rough and accompanied by cracks, the composite insulator silicon rubber part is determined to be pulverized at grade 4.
Specifically, the composite insulator silicon rubber part is pulverized to grade 1, which shows that the composite insulator silicon rubber part hardly generates pulverization phenomenon;
the composite insulator silicon rubber part is pulverized at level 2, which shows that the composite insulator silicon rubber part is pulverized below the surface layer; at this time, if an external force is applied, the silicon rubber on the surface layer is separated from the body to form cracks, so that the powdering layer below the surface layer of the silicon rubber is exposed;
the composite insulator silicon rubber part is pulverized to 3 grades, which shows that the pulverized layer at the edge of the composite insulator silicon rubber shed loses adhesive force, so that the surface layer falls off and the pulverized layer is exposed;
the 4-grade pulverization of the composite insulator silicone rubber part indicates that the composite insulator silicone rubber part is seriously pulverized.
Specifically, determining the material characteristics and/or the mechanical properties corresponding to the composite insulator silicone rubber part according to the pulverization grading corresponding to the composite insulator silicone rubber part comprises the following steps:
when the composite insulator silicon rubber part is pulverized to 1 grade, determining that the material characteristics and/or the mechanical properties of the silicon rubber umbrella skirt of the composite insulator are not much different from those of a new sample;
when the composite insulator silicon rubber part is pulverized to 2 grades, the mechanical property of the composite insulator silicon rubber shed on the whole is determined to be slightly reduced, but the reduction is not obvious; determining the risk of reduction of the hydrophobicity of the composite insulator silicon rubber part;
when the composite insulator silicon rubber part is powdered grade 3, the excellent hydrophobicity of the edge of the silicon rubber shed of the composite insulator is determined, but the hydrophobicity of the part, close to the core rod, of the shed is almost completely lost; and the mechanical property of the composite insulator silicon rubber part is determined to still meet the requirement of field use;
when the composite insulator silicon rubber part is pulverized to 4 grades, the overall hydrophobicity of the composite insulator silicon rubber umbrella skirt is determined to be excellent; and the mechanical property of the composite insulator silicon rubber umbrella skirt is determined to be seriously reduced, and the umbrella skirt can be torn off by slightly pulling the umbrella skirt under most conditions.
Specifically, according to the pulverization grade that composite insulator silicon rubber spare corresponds, judge the running state that composite insulator silicon rubber spare corresponds, and generate the fortune dimension tactics, include:
when the composite insulator silicon rubber part is pulverized to 1 grade, judging that the composite insulator silicon rubber part completely meets the use requirement without replacing the insulator;
when the composite insulator silicone rubber part is pulverized to level 2, if the composite insulator runs in a heavily-polluted area, judging that the pollution flashover resistance of the composite insulator is possibly reduced; at this time, corresponding test work should be carried out to determine whether to replace the composite insulator;
when the composite insulator silicone rubber part is pulverized to 3 grades, if the composite insulator runs in a heavily-polluted area, the composite insulator is considered to be replaced; if the composite insulator runs in a moderate-pollution area, performing sampling test on the composite insulator, and determining whether to replace the composite insulator according to a sampling test result;
when the composite insulator silicon rubber part is pulverized to 4 grades, if the composite insulator is possibly subjected to an operating environment of typhoon, strong wind, rainstorm, bird gathering and the like which cause stress on the umbrella skirt, the composite insulator is considered to be replaced.
As shown in fig. 2, the evaluation device for judging the powdering degree of silicone rubber for a composite insulator of this embodiment includes:
the pulverization grading determination unit 10 is used for determining pulverization grading corresponding to the composite insulator silicone rubber piece according to the obtained appearance morphological characteristics of the composite insulator silicone rubber piece;
the characteristic and performance determining unit 20 is configured to determine a material characteristic and/or a mechanical property corresponding to the composite insulator silicone rubber part according to the pulverization classification corresponding to the composite insulator silicone rubber part;
and the operation state and operation and maintenance judging unit 30 is used for judging the operation state corresponding to the composite insulator silicon rubber piece according to the pulverization classification corresponding to the composite insulator silicon rubber piece and generating an operation and maintenance strategy.
Specifically, a pulverization classification determination unit includes:
the pulverization level 1 determination module is used for determining that the composite insulator silicon rubber part is pulverization level 1 when the appearance of the composite insulator silicon rubber part is not obviously changed and light color or white cracks do not appear on the surface after the composite insulator is bent;
the pulverization 2-grade determination module is used for determining that the composite insulator silicon rubber part is pulverized by grade 2 when the appearance of the composite insulator silicon rubber part is not obviously changed, the umbrella skirt is smooth and has no fading phenomenon, but light color or white cracks appear on the surface of the composite insulator after bending;
the pulverization 3-grade determination module is used for determining that the composite insulator silicon rubber part is pulverized by grade 3 when the appearance of the composite insulator silicon rubber part is obviously changed, the edge of the umbrella skirt is obviously faded and whitened and the umbrella skirt is rough and cracked;
and the pulverization 4-grade determining module is used for determining that the composite insulator silicon rubber part is pulverized to 4 grades when the color fading and whitening phenomena are generated on the whole umbrella skirt of the composite insulator silicon rubber part and the umbrella skirt is rough and accompanied by cracks.
Specifically, the characteristic and performance determination unit includes:
the pulverization level 1 characteristic and performance module is used for determining that the material characteristics and/or the mechanical properties of the silicone rubber shed of the composite insulator are not different from those of a new sample when the composite insulator silicone rubber part is pulverized level 1;
the pulverization level 2 characteristic and performance module is used for determining that the mechanical performance of the composite insulator silicon rubber shed is reduced on the whole when the composite insulator silicon rubber part is pulverized level 2, but the use requirement is met; determining the risk of reduction of the hydrophobicity of the composite insulator silicon rubber part;
the pulverization 3-grade characteristic and performance module is used for determining that the hydrophobicity of the edge of a silicon rubber shed of the composite insulator is excellent, but the hydrophobicity of the part, close to the core rod, of the shed is almost completely lost when the composite insulator silicon rubber part is pulverized 3-grade; and the mechanical property of the composite insulator silicon rubber part is determined to still meet the requirement of field use;
the pulverization level 4 characteristic and performance module is used for determining that the overall hydrophobicity of the composite insulator silicon rubber shed is excellent when the composite insulator silicon rubber part is pulverized level 4; and the mechanical property of the composite insulator silicon rubber umbrella skirt is determined to be seriously reduced, and the umbrella skirt is broken when the umbrella skirt is pulled.
Specifically, the operation state and operation and maintenance determining unit includes:
the pulverization level 1 operation state and operation and maintenance judgment module is used for judging that the composite insulator silicon rubber piece completely meets the use requirement and does not need to be replaced when the composite insulator silicon rubber piece is pulverized level 1;
the pulverization level 2 operation state and operation and maintenance judgment module is used for judging that the pollution flashover resistance of the composite insulator is possibly reduced if the composite insulator operates in a heavily polluted area when the composite insulator silicon rubber part is pulverized level 2; at this time, corresponding test work should be carried out to determine whether to replace the composite insulator;
the pulverization 3-grade operation state and operation and maintenance judgment module is used for considering replacement of the composite insulator if the composite insulator operates in a heavily polluted area when the composite insulator silicone rubber part is pulverized 3-grade; if the composite insulator runs in a moderate-pollution area, performing sampling test on the composite insulator, and determining whether to replace the composite insulator according to a sampling test result;
and the pulverization level 4 operation state and operation and maintenance judgment module is used for considering the replacement of the composite insulator if the composite insulator operates in an operation environment of typhoon, strong wind, heavy rain, bird gathering and the like which cause stress on the umbrella skirt when the composite insulator silicon rubber part is pulverized level 4.
In specific implementation, the evaluation device for judging the powdering degree of the composite insulator silicone rubber part in the embodiment further includes:
automatically acquiring a man-machine interaction interface of the appearance picture of the composite insulator silicon rubber component;
displaying a pulverization grading human-computer interaction interface corresponding to the composite insulator silicon rubber component;
a man-machine interaction interface for displaying the corresponding pulverization grading meaning of the composite insulator silicon rubber component;
a man-machine interaction interface for displaying material characteristics and/or mechanical properties corresponding to the composite insulator silicon rubber component;
displaying a human-computer interaction interface of the operation state and the operation and maintenance strategy corresponding to the composite insulator silicon rubber component;
and the human-computer interaction interface is used for storing or searching a pulverization degree judgment conclusion, an evaluation conclusion or an operation state and an operation and maintenance strategy corresponding to the composite insulator silicon rubber component.
The step of classifying the pulverization degree of the silicone rubber according to the appearance of the composite insulator will be specifically described below.
As shown in fig. 3(a), the appearance of the composite insulator is not changed significantly, and light-colored or white cracks do not appear on the surface of the composite insulator after the composite insulator is bent. The composite insulator is classified into powdered Class 1 (namely, Chalking Class 1, abbreviated as CC 1). The pulverization level 1 shows that the composite insulator hardly generates pulverization phenomenon.
As shown in figure 3(b), the appearance of the composite insulator is not obviously changed, the umbrella skirt is smooth and has no fading phenomenon, but light-colored or white cracks appear on the surface of the composite insulator after being bent. The composite insulator is classified into powdered Class 2 (namely, Chalking Class 2, abbreviated as CC 2). And the pulverization level 2 shows that the pulverization phenomenon of the composite insulator is already generated below the surface layer. Specifically, the surface layer of the silicon rubber is hardened, the components of the base rubber in the powdering layer are not completely degraded, and the silicon rubber has certain adhesive force to the rubber on the surface layer; at this time, if an external force is applied, the silicone rubber of the surface layer is caused to separate from the body, forming cracks, exposing the powderized layer under the surface layer of the silicone rubber.
As shown in fig. 3(c), the appearance of the composite insulator is significantly changed, and the edge of the shed is significantly discolored and whitened, which is often accompanied by the roughness and cracks of the shed. The composite insulator is classified into powdered grade 3 (namely Chalking Class 3, CC3 for short). The pulverization level 3 shows that the pulverization layer at the edge of the umbrella skirt loses the adhesive force, so that the surface layer falls off and the pulverization layer is exposed;
as shown in fig. 3(d), the composite insulator shed is discolored and whitened as a whole, the shed is rough and often accompanied by cracks, and the composite insulator is classified into powdered Class 4 (namely, Chalking Class 4, abbreviated as CC 4). The powdering rating of 4 indicates that severe powdering of the composite insulator has occurred.
The following explains the correlation of the degree of pulverization of silicone rubber in the composite insulator with the material properties.
When pulverization of CC1 grade occurs, the composite insulator shed has little difference from a new sample in material characteristics and mechanical properties, and can still well meet the operation requirement; or the material characteristics and/or the mechanical properties of the silicon rubber umbrella skirt of the composite insulator are not different from those of a new sample.
When pulverization of CC2 grade occurs, the mechanical property of the composite insulator umbrella skirt is slightly reduced but not obviously reduced, the use requirement is still met, and the hydrophobicity risk of reduction exists, but most of the use requirement is still met; or the mechanical property of the composite insulator silicon rubber shed is reduced on the whole, but the use requirement is met, and the hydrophobicity of the composite insulator silicon rubber part is reduced.
When pulverization of CC3 grade occurs, the hydrophobicity of the edge of the shed of the composite insulator is excellent, but the hydrophobicity of the part, close to the core rod, of the shed is almost completely lost, but the mechanical property at the moment still meets the requirement of field use; or the hydrophobicity of the edge of the silicon rubber umbrella skirt of the composite insulator is excellent, but the hydrophobicity of the part, close to the core rod, of the umbrella skirt is almost completely lost, and the mechanical property of the silicon rubber part of the composite insulator still meets the requirement of field use.
When pulverization of CC4 grade occurs, the composite insulator shed has excellent hydrophobicity on the whole, but the mechanical property is seriously reduced at the moment, and the shed can be pulled apart by slightly pulling the shed under most conditions; or the integral hydrophobicity of the composite insulator silicon rubber shed is excellent, the mechanical property of the composite insulator silicon rubber shed is seriously reduced, and the shed is broken when the shed is pulled.
The following describes the steps of judging the operation state and forming the operation and maintenance strategy according to the pulverization degree of the silicone rubber of the composite insulator.
When CC1 grade pulverization occurs, the composite insulator completely meets the use requirement and does not need to be replaced.
When pulverization of CC2 grade occurs, the pollution and flash resistance of the composite insulator may be reduced in a heavily-polluted area, and corresponding test work should be carried out to determine whether to replace the composite insulator;
when pulverization of the CC3 grade occurs, replacement of the composite insulator in a heavily-polluted area can be considered, sampling test work for a moderately-polluted area is considered, and whether replacement is carried out or not is determined according to sampling test results;
when dusting on the CC4 scale occurs, replacement is a concern for composite insulators in operating environments that may be subjected to typhoons, high winds, heavy rain, bird accumulation, and the like, resulting in stress on the sheds.
In summary, the composite insulator silicon rubber pulverization degree judgment and evaluation method and device provided by the embodiment of the invention can simply, quickly and effectively judge the pulverization degree of the composite insulator, and classify according to the corresponding pulverization degree, so as to judge key operation characteristic parameters of the composite insulator, thereby providing reference for a front-line operator to make operation and maintenance schemes such as replacement.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The invention has been described above by reference to a few embodiments. However, other embodiments of the invention than the one disclosed above are equally possible within the scope of the invention, as would be apparent to a person skilled in the art from the appended patent claims.
Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a// the [ device, component, etc ]" are to be interpreted openly as at least one instance of a device, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
Claims (10)
1. An evaluation method for judging the pulverization degree of a composite insulator silicon rubber part is characterized by comprising the following steps:
determining corresponding pulverization grading of the composite insulator silicon rubber piece according to the obtained appearance morphological characteristics of the composite insulator silicon rubber piece;
determining the material characteristics and/or the mechanical properties corresponding to the composite insulator silicon rubber part according to the corresponding pulverization grading of the composite insulator silicon rubber part;
and judging the running state corresponding to the composite insulator silicon rubber part according to the corresponding pulverization classification of the composite insulator silicon rubber part, and generating an operation and maintenance strategy.
2. The method of claim 1,
according to the appearance morphology characteristic of the composite insulator silicon rubber piece that obtains, confirm the pulverization that composite insulator silicon rubber piece corresponds and grade, include:
when the appearance of the composite insulator silicon rubber part is not obviously changed and light-colored or white cracks do not appear on the surface after the composite insulator is bent, determining that the composite insulator silicon rubber part is pulverized to 1 grade;
when the appearance of the composite insulator silicon rubber part is not obviously changed, the umbrella skirt is smooth and has no fading phenomenon, but light color or white cracks appear on the surface of the composite insulator after being bent, the composite insulator silicon rubber part is determined to be pulverized by grade 2;
when the appearance of the composite insulator silicon rubber part is obviously changed, the edge of the umbrella skirt is obviously faded and whitened, and the umbrella skirt is rough and cracked, the composite insulator silicon rubber part is determined to be pulverized by grade 3;
when the phenomena of fading and whitening of the whole umbrella skirt of the composite insulator silicon rubber part occur and the umbrella skirt is rough and accompanied by cracks, the composite insulator silicon rubber part is determined to be pulverized at grade 4.
3. The method of claim 2,
according to the corresponding pulverization classification of the composite insulator silicon rubber part, determining the material characteristics and/or the mechanical properties corresponding to the composite insulator silicon rubber part, and the method comprises the following steps:
when the composite insulator silicon rubber part is powdered at grade 1, determining that the material characteristics and/or the mechanical properties of the silicon rubber umbrella skirt of the composite insulator are not different from those of a new sample;
when the composite insulator silicon rubber part is pulverized to 2 grades, the mechanical property of the composite insulator silicon rubber shed is determined to be reduced on the whole, but the use requirement is met; determining that the hydrophobicity of the composite insulator silicon rubber part has a risk of reduction;
when the composite insulator silicon rubber part is powdered at grade 3, determining that the hydrophobicity of the edge of a silicon rubber umbrella skirt of the composite insulator is excellent, but the hydrophobicity of the umbrella skirt close to the core rod is almost completely lost; determining that the mechanical property of the composite insulator silicon rubber piece still meets the requirement of field use;
when the composite insulator silicon rubber part is pulverized to 4 grades, the overall hydrophobicity of the composite insulator silicon rubber shed is determined to be excellent; and determining that the mechanical property of the composite insulator silicon rubber umbrella skirt is seriously reduced, and the umbrella skirt is broken when the umbrella skirt is pulled.
4. The method of claim 2,
according to the pulverization that composite insulator silicon rubber spare corresponds is hierarchical, judges the running state that composite insulator silicon rubber spare corresponds, and the operation and maintenance strategy of generating includes:
when the composite insulator silicon rubber part is pulverized to 1 grade, judging that the composite insulator silicon rubber part completely meets the use requirement without replacing the insulator;
when the composite insulator silicon rubber part is pulverized to 2 grades, if the composite insulator runs in a heavily-polluted area, judging that the pollution flashover resistance of the composite insulator is possibly reduced; at this time, corresponding test work should be carried out to determine whether to replace the composite insulator;
when the composite insulator silicone rubber part is pulverized to 3 grades, if the composite insulator runs in a heavily-polluted area, the composite insulator is considered to be replaced; if the composite insulator runs in a moderate-pollution area, performing sampling test on the composite insulator, and determining whether to replace the composite insulator according to a sampling test result;
when the composite insulator silicon rubber spare is 4 grades of chalking, if composite insulator operation leads to the operational environment of full skirt atress at typhoon, strong wind, torrential rain, birds gathering etc. then consider to change composite insulator.
5. The method of claim 1,
the composite insulator silicon rubber part comprises: silicon rubber umbrella skirt and silicon rubber sheath.
6. The utility model provides an evaluation device that is used for compound insulator silicon rubber spare pulverization degree to judge which characterized in that includes:
the pulverization grading determination unit is used for determining pulverization grading corresponding to the composite insulator silicon rubber piece according to the obtained appearance morphological characteristics of the composite insulator silicon rubber piece;
the characteristic and performance determining unit is used for determining the material characteristics and/or the mechanical properties corresponding to the composite insulator silicon rubber part according to the corresponding pulverization grading of the composite insulator silicon rubber part;
and the operation state and operation and maintenance judging unit is used for judging the operation state corresponding to the composite insulator silicon rubber part according to the pulverization grading corresponding to the composite insulator silicon rubber part and generating an operation and maintenance strategy.
7. The apparatus of claim 6,
the pulverization classification determination unit includes:
the pulverization level 1 determination module is used for determining that the composite insulator silicon rubber part is pulverization level 1 when the appearance of the composite insulator silicon rubber part is not obviously changed and light color or white cracks do not appear on the surface after the composite insulator is bent;
the pulverization 2-grade determination module is used for determining that the composite insulator silicon rubber piece is pulverized by grade 2 when the appearance of the composite insulator silicon rubber piece is not obviously changed, the umbrella skirt is smooth and has no fading phenomenon, but light color or white cracks appear on the surface of the composite insulator after bending;
the pulverization 3-grade determination module is used for determining that the composite insulator silicon rubber part is pulverized by grade 3 when the appearance of the composite insulator silicon rubber part is obviously changed, the edge of the umbrella skirt is obviously faded and whitened and the umbrella skirt is rough and cracked;
and the pulverization 4-grade determining module is used for determining that the composite insulator silicon rubber part is pulverized at grade 4 when the phenomena of fading and whitening of the whole umbrella skirt of the composite insulator silicon rubber part occur and the umbrella skirt is rough and accompanied by cracks.
8. The apparatus of claim 6,
the characteristic and performance determining unit includes:
the pulverization level 1 characteristic and performance module is used for determining that the material characteristics and/or the mechanical properties of the silicone rubber shed of the composite insulator are not different from those of a new sample when the composite insulator silicone rubber part is pulverized level 1;
the pulverization level 2 characteristic and performance module is used for determining that the mechanical performance of the composite insulator silicon rubber shed is reduced on the whole but the use requirement is met when the composite insulator silicon rubber part is pulverized level 2; determining that the hydrophobicity of the composite insulator silicon rubber part has a risk of reduction;
the pulverization 3-grade characteristic and performance module is used for determining that the hydrophobicity of the edge of the silicon rubber shed of the composite insulator is excellent, but the hydrophobicity of the part, close to the core rod, of the shed is almost completely lost when the composite insulator silicon rubber part is pulverized 3-grade; determining that the mechanical property of the composite insulator silicon rubber piece still meets the requirement of field use;
the pulverization level 4 characteristic and performance module is used for determining that the overall hydrophobicity of the composite insulator silicon rubber shed is excellent when the composite insulator silicon rubber part is pulverized level 4; and determining that the mechanical property of the composite insulator silicon rubber umbrella skirt is seriously reduced, and the umbrella skirt is broken when the umbrella skirt is pulled.
9. The apparatus of claim 6,
the operation state and operation and maintenance judging unit comprises:
the pulverization level 1 operation state and operation and maintenance judgment module is used for judging that the composite insulator silicon rubber piece completely meets the use requirement and does not need to be replaced when the composite insulator silicon rubber piece is pulverized level 1;
the pulverization level 2 operation state and operation and maintenance judgment module is used for judging that the pollution flashover resistance of the composite insulator is possibly reduced if the composite insulator operates in a heavily polluted area when the composite insulator silicon rubber piece is pulverized level 2; at this time, corresponding test work should be carried out to determine whether to replace the composite insulator;
the pulverization 3-grade operation state and operation and maintenance judgment module is used for considering replacement of the composite insulator if the composite insulator operates in a heavily polluted area when the composite insulator silicon rubber part is pulverized 3-grade; if the composite insulator runs in a moderate-pollution area, performing sampling test on the composite insulator, and determining whether to replace the composite insulator according to a sampling test result;
and the pulverization 4-level operation state and operation and maintenance judgment module is used for working as when the composite insulator silicon rubber piece is pulverized 4-level, if the composite insulator operates in an operation environment which causes the stress of the umbrella skirt due to typhoon, strong wind, rainstorm, bird gathering and the like, the composite insulator is considered to be replaced.
10. The apparatus of claim 6,
the composite insulator silicon rubber part comprises: silicon rubber umbrella skirt and silicon rubber sheath.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034632A (en) * | 2021-11-18 | 2022-02-11 | 广东电网有限责任公司广州供电局 | Method for measuring aging degree of silicon rubber material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900699A (en) * | 2019-03-27 | 2019-06-18 | 国网湖南省电力有限公司 | Method is determined based on the degree of aging of composite insulator powdering grading |
| CN109946426A (en) * | 2019-03-25 | 2019-06-28 | 国网湖南省电力有限公司 | Composite insulator moves back fortune appraisal procedure |
-
2020
- 2020-08-28 CN CN202010886468.0A patent/CN112180073A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946426A (en) * | 2019-03-25 | 2019-06-28 | 国网湖南省电力有限公司 | Composite insulator moves back fortune appraisal procedure |
| CN109900699A (en) * | 2019-03-27 | 2019-06-18 | 国网湖南省电力有限公司 | Method is determined based on the degree of aging of composite insulator powdering grading |
Non-Patent Citations (5)
| Title |
|---|
| 向文祥等: "复合绝缘子粉化状态非接触检测技术研究", 《中国电业(技术版)》 * |
| 宿志一等: "硅橡胶复合绝缘子伞裙护套的老化及其判据研究", 《电网技术》 * |
| 张滔等: "广州地区复合绝缘子运行状态浅析", 《电子世界》 * |
| 张锐: "复合绝缘子用硅橡胶材料的配方设计与老化性能评估", 《电瓷避雷器》 * |
| 汪涛等: "运行中复合绝缘子的状态评价及试验研究", 《电网技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034632A (en) * | 2021-11-18 | 2022-02-11 | 广东电网有限责任公司广州供电局 | Method for measuring aging degree of silicon rubber material |
| CN114034632B (en) * | 2021-11-18 | 2024-02-27 | 广东电网有限责任公司广州供电局 | Method for measuring ageing degree of silicone rubber material |
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