CN108872059A - Composite insulator ageing state appraisal procedure and terminal device - Google Patents

Abstract

The invention is applicable to the technical field of power grid safety, and provides a composite insulator aging state evaluation method and terminal equipment. The method includes: performing anti-aging performance test, macro-hydrophobic performance test, hardness change value test, brightness change value test and molecular group change value test respectively on the composite insulator to be tested, according to the anti-aging performance test results of the composite insulator to be tested , macroscopic hydrophobic performance test results, hardness change value test results, brightness change value test results and molecular group change value test results, determine the aging state value of the composite insulator to be tested, and determine the aging degree of the composite insulator to be tested according to the aging state value . After adopting the above scheme, the quantitative evaluation of the aging state of the composite insulator can be realized, and the seriously aged insulator can be replaced in time, which ensures the safe and reliable operation of the power grid.

Description

Composite insulator aging state evaluation method and terminal equipment

technical field

The invention belongs to the technical field of power grid safety, and in particular relates to a composite insulator aging state evaluation method and terminal equipment.

Background technique

Composite insulators are widely used in power systems due to their excellent anti-pollution flashover performance, especially because the ecological environment has been severely damaged in recent years. The excellent performance in area pollution flashover incidents has gradually made it the first choice for external insulation of transmission lines in my country.

However, the umbrella cover material for composite insulators is made of silicone rubber. Due to the joint action of external environmental factors during operation, its operating performance will continue to age. Faults such as cracking and exposed mandrels may even lead to vicious power accidents such as pollution flashover and insulator drop-off in severe cases, affecting the safe, reliable and stable operation of the power grid.

Contents of the invention

In view of this, the embodiment of the present invention provides a method for evaluating the aging state of composite insulators and terminal equipment to solve the problem that in the prior art, the umbrella cover material for composite insulators is made of silicone rubber, and the operating performance will continue to age and water repellency will appear. Failure problems such as loss, sheath rupture, and core rod exposure.

The first aspect of the embodiments of the present invention provides a method for evaluating the aging state of a composite insulator, including:

Carry out anti-aging performance test, macro-hydrophobic performance test, hardness change value test, brightness change value test and molecular group change value test respectively for the composite insulator to be tested;

Determine the aging of the composite insulator to be tested according to the test results of anti-aging performance, macro-hydrophobic performance, hardness change value, brightness change value and molecular group change value of the composite insulator to be tested status value;

The aging degree of the composite insulator to be tested is determined according to the aging state value.

In addition, in a specific example, the anti-aging performance test of the composite insulator to be tested includes:

performing thermal oxygen accelerated aging treatment on the shed of the composite insulator to be tested;

According to the initial hardness value of the shed of the composite insulator to be tested and the hardness value after the thermal oxygen accelerated aging treatment, the test result of the anti-aging performance of the composite insulator to be tested is determined.

In addition, in a specific example, the macro-hydrophobic performance test of the composite insulator to be tested includes:

performing a static contact angle treatment on the shed of the composite insulator to be tested;

According to at least one static contact angle after the static contact angle treatment of the composite insulator to be tested, the test result of the macroscopic hydrophobic performance of the composite insulator to be tested is determined.

In addition, in a specific example, the hardness change value test of the composite insulator to be tested includes:

Cutting the shed of the composite insulator to be tested;

According to the surface hardness value of the shed of the composite insulator to be tested and the hardness value of the cut surface after the cutting process, the test result of the hardness change value of the composite insulator to be tested is determined.

In addition, in a specific example, the brightness change value test of the composite insulator to be tested includes:

Cutting the shed of the composite insulator to be tested;

According to the brightness value of the shed surface color space of the composite insulator to be tested and the brightness value of the color space of the cut surface after the cutting process, the brightness change value result of the composite insulator to be tested is determined.

In addition, in a specific example, the testing of the molecular group change value of the composite insulator to be tested includes:

Carrying out infrared spectrum analysis on the surface of the shed of the composite insulator to be tested;

Cutting the shed of the composite insulator to be tested, and performing infrared spectrum analysis on the cut surface;

According to the surface absorbance ratio after infrared spectrum analysis processing and the cut surface absorbance ratio after infrared spectrum analysis processing on the cut surface, the molecular group change value result of the composite insulator to be tested is determined.

In addition, in a specific example, according to the test results of anti-aging performance, macroscopic hydrophobic performance test results, hardness change value test results, brightness change value test results and molecular group change value test results of the composite insulator to be tested , determining the aging state value of the composite insulator to be tested includes:

Determine the aging state of the composite insulator to be tested according to the expression F _{aging state} =a*△H _x°C +b*A _av -c*△H _shore -d*△L ^* -e*△IR _w/n -f where a, b, c, d, e, f are the preset coefficient values, △H _{x ℃} is the test result of anti-aging performance of the composite insulator to be tested, and A _av is the macroscopic hydrophobicity of the composite insulator to be tested Performance test results, △H _shore is the test result of the hardness change value of the composite insulator to be tested, △L ^* is the test result of the brightness change value of the composite insulator to be tested, △IR _w/n is the molecular group change value of the composite insulator to be tested Test Results.

In addition, in a specific example, the determining the aging degree of the composite insulator to be tested according to the aging state value includes:

Obtain the maximum value among the aging state values;

The aging degree corresponding to the maximum value is determined as the aging degree of the composite insulator to be tested.

The second aspect of the embodiment of the present invention provides a device for evaluating the aging state of composite insulators, including:

The performance test module is used to test the anti-aging performance, macro-hydrophobicity test, hardness change value test, brightness change value test and molecular group change value test of the composite insulator to be tested;

The aging state value determination module is used to determine according to the aging resistance performance test results, macroscopic hydrophobic performance test results, hardness change value test results, brightness change value test results and molecular group change value test results of the composite insulator to be tested. The aging state value of the composite insulator to be tested;

The aging degree determination module is configured to determine the aging degree of the composite insulator to be tested according to the aging state value.

The third aspect of the embodiment of the present invention provides a composite insulator aging state assessment terminal equipment, including: a memory, a processor, and a computer program stored in the memory and operable on the processor, the processing When the computer executes the computer program, the method described in the first aspect above is realized.

Compared with the prior art, the embodiment of the present invention has the beneficial effects that: after adopting the above scheme, the composite insulator can be tested for anti-aging performance, macro-hydrophobicity test, hardness change value test, brightness change value test and molecular The group change value test determines the aging state value of the composite insulator, and then determines the aging state of the composite insulator according to the aging state value, which can realize the quantitative evaluation of the aging state of the composite insulator, replace the seriously aged insulator in time, and ensure the safe and reliable operation of the power grid.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only of the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative efforts.

Fig. 1 is a flow chart of the steps of the method for evaluating the aging state of composite insulators provided by the embodiment of the present invention;

Fig. 2 is a flow chart of the steps of the method for evaluating the aging state of composite insulators provided by another embodiment of the present invention;

Fig. 3 is a schematic structural view of a composite insulator aging state evaluation device provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of a composite insulator aging state evaluation terminal device provided by an embodiment of the present invention.

Detailed ways

In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

As shown in Fig. 1, it is a flow chart of the steps of the method for evaluating the aging state of composite insulators provided by the embodiment of the present invention, including:

In step S101, the composite insulator to be tested is subjected to an anti-aging performance test, a macroscopic hydrophobic performance test, a hardness change value test, a brightness change value test and a molecular group change value test.

Specifically, this scheme is used to measure the anti-aging performance, macro-hydrophobic performance and related performance changes after aging of the composite insulator to be tested, which reduces the influence of the single performance test result error on the final judgment result, and realizes the aging state of the composite insulator. The quantitative evaluation provides a scientific basis for the development of composite insulator rotation strategies.

Step S102, according to the anti-aging performance test results, macroscopic hydrophobic performance test results, hardness change value test results, brightness change value test results and molecular group change value test results of the composite insulator to be tested, determine the composite insulator to be tested. Aging state value of the insulator.

Specifically, the aging state of the composite insulator to be tested can be divided into three types, namely, non-aging, medium aging and severe aging. Using the test results of a large number of composite insulator samples, it can be classified into "not aging", "moderate aging", The possibility calculation formula of the three aging states of "severe aging" calculates the possibility of a composite insulator being in a certain aging state. In addition, other schemes for distinguishing aging states are also within the protection scope of the present application, for example, dividing aging states into two, four or more aging states.

Step S103, determining the aging degree of the composite insulator to be tested according to the aging state value.

Specifically, according to the pre-stored rules for determining the aging degree of the composite insulator to be tested, the aging degree corresponding to the aging state value is determined. The maximum value criterion can be used to obtain the aging state corresponding to the maximum value of the aging state value, which is the composite insulator to be tested. Aging state of insulators. In addition, a threshold value can also be determined, and the difference between the aging state value and the threshold value can be calculated, and the aging state corresponding to the aging state value with the smallest absolute value of the difference is the aging state of the composite insulator to be tested.

After adopting the above scheme, the aging state value of the composite insulator can be determined by performing anti-aging performance test, macro-hydrophobic performance test, hardness change value test, brightness change value test and molecular group change value test on the composite insulator, and then according to the aging state The aging state of the composite insulator can be determined by the value, and the quantitative evaluation of the aging state of the composite insulator can be realized, and the seriously aged insulator can be replaced in time to ensure the safe and reliable operation of the power grid.

In addition, as shown in Figure 2, in a specific embodiment, the anti-aging performance test of the composite insulator to be tested includes:

Step S201, performing thermal oxygen accelerated aging treatment on the shed of the composite insulator to be tested.

Step S202, according to the initial hardness value of the shed of the composite insulator to be tested and the hardness value after the thermal oxygen accelerated aging treatment, determine the aging resistance performance test result of the composite insulator to be tested.

Specifically, cut out a part of the shed of the composite insulator to be tested, test its Shore hardness, and record it as H _{acceleration. Before accelerating} , carry out thermal oxygen accelerated aging treatment on the shed sample of the composite insulator to be tested, and test the accelerated aging The Shore hardness of the final sample is recorded as _{after H acceleration} , then the hardness increase value of the shed of the composite insulator before and after accelerated aging △H _x = _after H _{acceleration - before} H acceleration, which is the test result of the anti-aging performance of the composite insulator to be tested. Among them, 12 hours of artificial accelerated thermal oxygen aging treatment at 290° C. was carried out in a muffle furnace.

In addition, in a specific embodiment, the macro-hydrophobicity test of the composite insulator to be tested includes:

Static contact angle treatment is performed on the shed of the composite insulator to be tested.

According to at least one static contact angle after the static contact angle treatment of the composite insulator to be tested, the test result of the macroscopic hydrophobic performance of the composite insulator to be tested is determined.

Specifically, the static contact angle at at least one position of the shed is measured by the static contact angle method, and the average value SCA _av is calculated, which is the macroscopic hydrophobic performance of the composite insulator. Among them, the static contact angles at five positions of the shed are measured, and the central axis of the shed is taken as the standard, and five positions are evenly selected on the upper surface of the shed.

In addition, in a specific embodiment, the testing of the hardness change value of the composite insulator to be tested includes:

Cutting is performed on the shed of the composite insulator to be tested. According to the surface hardness value of the shed of the composite insulator to be tested and the hardness value of the cut surface after the cutting process, the test result of the hardness change value of the composite insulator to be tested is determined.

Specifically, cut out the silicone rubber shed of the composite insulator to be tested, measure the hardness of its upper surface, record it as the _{upper surface} of H, cut the shed of the composite insulator to be tested, and cut along the longitudinal center of the cut shed sample. Open, measure the hardness value of the cut surface, record it as the H _{central layer} , then the hardness difference between the inner and outer layers △H _shore = H _{upper surface} - H _{central layer} is the test result of the hardness change value of the composite insulator to be tested after aging.

In addition, in a specific embodiment, the testing of the brightness change value of the composite insulator to be tested includes:

Cut the shed of the composite insulator to be tested. According to the brightness value of the shed surface color space of the composite insulator to be tested and the brightness value of the color space of the cut surface after the cutting process, the brightness change value result of the composite insulator to be tested is determined.

Specifically, cut out the silicone rubber shed of the composite insulator to be tested, and measure the brightness value of its surface color space, wherein the brightness value of the upper surface color space can be measured, which is the L value of the L*a*b color space, and write is the _{upper surface} of L, cut along the longitudinal center of the cut shed sample, measure the L value of the cut surface, record it as the L _{center layer} , and calculate the difference between the L values of the inner and outer layers △L ^* = L _{upper surface} - L _{center layer} , which is the change value of the brightness of the composite insulator to be tested after aging.

In addition, in a specific embodiment, the testing of the molecular group change value of the composite insulator to be tested includes:

Infrared spectrum analysis is performed on the surface of the shed of the composite insulator to be tested. Cutting is performed on the shed of the composite insulator to be tested, and infrared spectrum analysis is performed on the cut surface. According to the surface absorbance ratio after infrared spectrum analysis processing and the cut surface absorbance ratio after infrared spectrum analysis processing on the cut surface, the molecular group change value result of the composite insulator to be tested is determined.

Specifically, the silicone rubber shed of the composite insulator to be tested is cut, and its surface is subjected to Fourier transform infrared spectrum analysis, wherein the upper surface of the shed can be used to calculate the Si-O-Si group and the Si-(CH ₃ ) The ratio of the absorbance corresponding to the ₂ groups is recorded as the IR _{upper surface} , and is cut along the longitudinal center of the intercepted shed sample, and the cut surface is analyzed by Fourier transform infrared spectroscopy to calculate the Si-O-Si group and Si- The ratio of absorbance corresponding to (CH ₃ ) ₂ groups is recorded as the IR _{center layer} , and the ratio between the two is calculated △IR _w/n = IR _{upper surface} /IR _{center layer} ; it is the result of the change value of the molecular group after aging of the composite insulator to be tested .

In addition, in a specific embodiment, according to the test results of anti-aging performance, macroscopic hydrophobic performance test results, hardness change value test results, brightness change value test results and molecular group change value test results of the composite insulator to be tested As a result, determining the aging state value of the composite insulator to be tested includes:

Determine the aging state of the composite insulator to be tested according to the expression F _{aging state} =a*△H _x°C +b*A _av -c*△H _shore -d*△L ^* -e*△IR _w/n -f where a, b, c, d, e, f are the preset coefficient values, △H _{x ℃} is the test result of anti-aging performance of the composite insulator to be tested, and A _av is the macroscopic hydrophobicity of the composite insulator to be tested Performance test results, △H _shore is the test result of the hardness change value of the composite insulator to be tested, △L ^* is the test result of the brightness change value of the composite insulator to be tested, △IR _w/n is the molecular group change value of the composite insulator to be tested Test Results.

Specifically, the aging state is divided into three types: non-aging, moderate aging and severe aging, and the state values corresponding to the three aging degrees of composite insulators "not aging", "moderate aging" and "severe aging" are calculated according to the preset formula: F _{is not aged} , F is _{moderately aged} and F is _{severely aged} . Among them, in one embodiment,

F _unaged = 0.444△H _290℃ +4.858SCA _av -2.911△H _shore -1.124△L ^* -1.421△IR _w/n -311.268;

F _{aging medium} = 0.535△H _290℃ +4.373SCA _av -2.258△H _shore -1.134△L ^* -1.127△IR _w/n -254.870;

F _{severe aging} = 0.096△H _290℃ +5.126SCA _av -3.796△H _shore -0.126△L ^* -1.631△IR _w/n -346.936;

Compare the values of F _{not aged} , F _{moderately aged} and F _{severely aged .} If F _{is not aged} the largest, the aging degree of the composite insulator to be tested is "unaged". The degree of aging is "moderately aged". If F is _{severely aged} , the aging degree of the composite insulator to be tested is "severely aged".

In addition, in a specific embodiment, the determining the aging degree of the composite insulator to be tested according to the aging state value includes:

Obtain the maximum value among the aging state values. The aging degree corresponding to the maximum value is determined as the aging degree of the composite insulator to be tested.

In addition, in a specific example, three composite insulators to be tested are selected, numbered 1#, 2#, and 3#. Part of the shed is cut from each insulator, and thermal oxygen aging is carried out in a muffle furnace. The aging temperature is set to The temperature is 290°C, and the aging time is 12 hours. Test the hardness value of the shed sample before and after thermal oxygen aging, and calculate the hardness increase value corresponding to △H1#290℃＝22.5, △H2#290℃＝16.6, △H3#290℃ = 6.9.

The static contact angles were measured five times at different positions on the surface of the three composite insulators, and the average values of SCA ^1# _av = 130.8°, SCA ^2# _av = 119.4°, and SCA ^3# _av = 136.6° were calculated.

Select a shed for each composite insulator to be tested, measure the hardness of its inner and outer layers, and calculate the difference of hardness △H ^1# _shore = 2.9, △H ^2# _shore = 1.2, △H ^3# _shore = 3.7.

Select a shed for each composite insulator to be tested, measure the L value of the inner and outer layers in the L*a*b color space with a colorimeter, and calculate the difference △L _1# ^＊ ＝7.83, △L _2# ^＊ ＝-2.10 , ΔL _3# ^* = 13.48.

Select one shed for each composite insulator to be tested, conduct FTIR test on its inner and outer silicone rubber materials, obtain the absorbance corresponding to Si-O-Si group and Si-(CH3)2 group, calculate the ratio of the corresponding absorbance of the two groups, and calculate The ratio of the inner and outer layers △IR ^1# _w/n =-0.1081, △IR ^2# _w/n =0.3945, △IR ^3# _w/n =-0.6582.

According to F _unaged = 0.444△H _290℃ +4.858SCA _av -2.911△H _shore -1.124△L ^* -1.421△IR _w/n -311.268;

F _{aging medium} = 0.535△H _290℃ +4.373SCA _av -2.258△H _shore -1.134△L ^* -1.127△IR _w/n -254.870;

F _{severe aging} = 0.096△H _290℃ +5.126SCA _av -3.796△H _shore -0.126△L ^* -1.631△IR _w/n -346.936; calculate the three aging state values of each composite insulator:

Sample serial number F _{not aged} F _{aging medium} F _{Severe aging} 1# 317.0591901 313.8503087 313.8861311 2# 274.4542155 275.3743985 261.7679705 3# 330.4114822 323.2741714 339.2678442

Comparing the three aging state values calculated for each insulator to be tested, the 1# composite insulator F _{is the} largest, indicating that it has not aged; the 2# composite insulator F has the largest _aging , indicating that its aging degree is moderate, and needs to be strengthened. Operation observation; 3# composite insulator F is the most _{severely aged} , indicating that it has been seriously aged and needs to be replaced immediately.

As shown in Figure 3, it is a schematic structural diagram of the composite insulator aging state evaluation device provided by the embodiment of the present invention, including:

The performance testing module 301 is used to respectively perform anti-aging performance test, macroscopic hydrophobic performance test, hardness change value test, brightness change value test and molecular group change value test of the composite insulator to be tested.

The aging state value determination module 302 is used to, according to the anti-aging performance test results, macroscopic hydrophobic performance test results, hardness change value test results, brightness change value test results and molecular group change value test results of the composite insulator to be tested, Determine the aging state value of the composite insulator to be tested.

The aging degree determination module 303 is configured to determine the aging degree of the composite insulator to be tested according to the aging state value.

After adopting the above scheme, the aging state value of the composite insulator can be determined by performing anti-aging performance test, macro-hydrophobic performance test, hardness change value test, brightness change value test and molecular group change value test on the composite insulator, and then according to the aging state The aging state of the composite insulator can be determined by the value, and the quantitative evaluation of the aging state of the composite insulator can be realized, and the seriously aged insulator can be replaced in time to ensure the safe and reliable operation of the power grid.

In addition, in a specific embodiment, the performance testing module 301 is also used for:

The shed of the composite insulator to be tested is subjected to thermal oxygen accelerated aging treatment.

According to the initial hardness value of the shed of the composite insulator to be tested and the hardness value after the thermal oxygen accelerated aging treatment, the test result of the anti-aging performance of the composite insulator to be tested is determined.

In addition, in a specific embodiment, the macro-hydrophobicity test of the composite insulator to be tested includes:

Static contact angle treatment is performed on the shed of the composite insulator to be tested.

According to at least one static contact angle after the static contact angle treatment of the composite insulator to be tested, the test result of the macroscopic hydrophobic performance of the composite insulator to be tested is determined.

In addition, in a specific embodiment, the performance testing module 301 is also used for:

Cutting is performed on the shed of the composite insulator to be tested.

According to the surface hardness value of the shed of the composite insulator to be tested and the hardness value of the cut surface after the cutting process, the test result of the hardness change value of the composite insulator to be tested is determined.

In addition, in a specific embodiment, the performance testing module 301 is also used for:

Cutting is performed on the shed of the composite insulator to be tested.

According to the brightness value of the shed surface color space of the composite insulator to be tested and the brightness value of the color space of the cut surface after the cutting process, the brightness change value result of the composite insulator to be tested is determined.

In addition, in a specific embodiment, the performance testing module 301 is also used for:

Infrared spectrum analysis is performed on the surface of the shed of the composite insulator to be tested.

Cutting is performed on the shed of the composite insulator to be tested, and infrared spectrum analysis is performed on the cut surface.

According to the surface absorbance ratio after infrared spectrum analysis processing and the cut surface absorbance ratio after infrared spectrum analysis processing on the cut surface, the molecular group change value result of the composite insulator to be tested is determined.

In addition, in a specific embodiment, the aging state value determination module 302 is also used for:

Determine the aging state of the composite insulator to be tested according to the expression F _{aging state} =a*△H _x°C +b*A _av -c*△H _shore -d*△L ^* -e*△IR _w/n -f where a, b, c, d, e, f are the preset coefficient values, △H _{x ℃} is the test result of anti-aging performance of the composite insulator to be tested, and A _av is the macroscopic hydrophobicity of the composite insulator to be tested Performance test results, △H _shore is the test result of the hardness change value of the composite insulator to be tested, △L ^* is the test result of the brightness change value of the composite insulator to be tested, △IR _w/n is the molecular group change value of the composite insulator to be tested Test Results.

In addition, in a specific embodiment, the aging degree determining module 303 is also used for:

Obtain the maximum value among the aging state values.

The aging degree corresponding to the maximum value is determined as the aging degree of the composite insulator to be tested.

After adopting the above scheme, making full use of the aging depth research results in the existing aging mechanism research of composite insulators, the silicone rubber material in the center layer of the shed is used to represent the new silicone rubber product, avoiding the measurement error caused by the composition and process changes of the composite insulator. This method measures the anti-aging performance, macro-hydrophobic performance and related performance changes of the composite insulator after aging, and calculates the possibility of the composite insulator being in a certain aging state through formula calculation, which reduces the impact of the single performance test result error on the final judgment result. The quantitative evaluation of the aging state of composite insulators is realized, which provides a scientific basis for the formulation of composite insulator rotation strategies.

It should be understood that the sequence numbers of the steps in the above embodiments do not mean the order of execution, and the execution order of each process should be determined by its functions and internal logic, and should not constitute any limitation to the implementation process of the embodiment of the present invention.

FIG. 4 is a schematic diagram of a composite insulator aging state assessment terminal device provided by an embodiment of the present invention. The terminal device 4 of this embodiment includes: a processor 40, a memory 41, and stored in the memory 41 and can be used in the processor 40. A computer program 42 running on it, such as a program for evaluating the aging state of composite insulators. When the processor 40 executes the computer program 42 , the steps in the above-mentioned embodiments of the methods for evaluating the aging state of composite insulators are implemented, such as steps 101 to 103 shown in FIG. 1 . Alternatively, when the processor 40 executes the computer program 42, it realizes the functions of the modules/units in the above-mentioned device embodiments, such as the functions of the modules 301 to 303 shown in FIG. 3 .

Exemplarily, the computer program 42 can be divided into one or more modules/units, and the one or more modules/units are stored in the memory 41 and executed by the processor 40 to complete this invention. The one or more modules/units may be a series of computer program instruction segments capable of accomplishing specific functions, and the instruction segments are used to describe the execution process of the computer program 42 in the terminal device 4 for evaluating the aging state of composite insulators. For example, the computer program 42 can be divided into a synchronization module, a summary module, an acquisition module, and a return module (modules in the virtual device), and the specific functions of each module are as follows:

The anti-aging performance test, macroscopic hydrophobic performance test, hardness change value test, brightness change value test and molecular group change value test are respectively carried out on the composite insulator to be tested.

Determine the aging of the composite insulator to be tested according to the test results of anti-aging performance, macro-hydrophobic performance, hardness change value, brightness change value and molecular group change value of the composite insulator to be tested status value.

The aging degree of the composite insulator to be tested is determined according to the aging state value.

The anti-aging performance test of the composite insulator to be tested includes:

The shed of the composite insulator to be tested is subjected to thermal oxygen accelerated aging treatment.

According to the initial hardness value of the shed of the composite insulator to be tested and the hardness value after the thermal oxygen accelerated aging treatment, the test result of the anti-aging performance of the composite insulator to be tested is determined.

The macro-hydrophobic performance test of the composite insulator to be tested includes:

Static contact angle treatment is performed on the shed of the composite insulator to be tested.

According to at least one static contact angle after the static contact angle treatment of the composite insulator to be tested, the test result of the macroscopic hydrophobic performance of the composite insulator to be tested is determined.

The hardness change value test of the composite insulator to be tested includes:

Cutting is performed on the shed of the composite insulator to be tested.

According to the surface hardness value of the shed of the composite insulator to be tested and the hardness value of the cut surface after the cutting process, the test result of the hardness change value of the composite insulator to be tested is determined.

The brightness change value test of the composite insulator to be tested includes:

Cutting is performed on the shed of the composite insulator to be tested.

According to the brightness value of the shed surface color space of the composite insulator to be tested and the brightness value of the color space of the cut surface after the cutting process, the brightness change value result of the composite insulator to be tested is determined.

The test of the molecular group change value of the composite insulator to be tested includes:

Infrared spectrum analysis is performed on the surface of the shed of the composite insulator to be tested.

Cutting is performed on the shed of the composite insulator to be tested, and infrared spectrum analysis is performed on the cut surface.

According to the surface absorbance ratio after infrared spectrum analysis processing and the cut surface absorbance ratio after infrared spectrum analysis processing on the cut surface, the molecular group change value result of the composite insulator to be tested is determined.

The composite insulator to be tested is determined according to the test results of anti-aging performance, macro-hydrophobicity test results, hardness change value test results, brightness change value test results and molecular group change value test results of the composite insulator to be tested. The aging status values include:

Determine the aging state of the composite insulator to be tested according to the expression F _{aging state} =a*△H _x°C +b*A _av -c*△H _shore -d*△L ^* -e*△IR _w/n -f where a, b, c, d, e, f are the preset coefficient values, △H _{x ℃} is the test result of anti-aging performance of the composite insulator to be tested, and A _av is the macroscopic hydrophobicity of the composite insulator to be tested Performance test results, △H _shore is the test result of the hardness change value of the composite insulator to be tested, △L ^* is the test result of the brightness change value of the composite insulator to be tested, △IR _w/n is the molecular group change value of the composite insulator to be tested Test Results.

The determining the aging degree of the composite insulator to be tested according to the aging state value includes:

Obtain the maximum value among the aging state values.

The aging degree corresponding to the maximum value is determined as the aging degree of the composite insulator to be tested.

The terminal device 4 for evaluating the aging state of composite insulators may be computing devices such as desktop computers, notebooks, palmtop computers, and cloud servers. The composite insulator aging state evaluation terminal device may include, but not limited to, a processor 40 and a memory 41 . Those skilled in the art can understand that Fig. 4 is only an example of the composite insulator aging state evaluation terminal device 4, and does not constitute a limitation on the composite insulator aging state evaluation terminal device 4, and may include more or less components than shown in the figure, Or combine certain components, or different components, for example, the composite insulator aging state assessment terminal equipment may also include input and output equipment, network access equipment, bus and so on.

The so-called processor 40 may be a central processing unit (Central Processing Unit, CPU), and may also be other general-purpose processors, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), Off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

The memory 41 may be an internal storage unit of the terminal device 4 for evaluating the aging state of composite insulators, for example, a hard disk or a memory of the terminal device 4 for evaluating the aging state of composite insulators. The memory 41 can also be an external storage device of the composite insulator aging state evaluation terminal device 4, such as a plug-in hard disk equipped on the composite insulator aging state evaluation terminal device 4, a smart memory card (Smart Media Card, SMC ), Secure Digital (SecureDigital, SD) card, flash memory card (Flash Card), etc. Further, the memory 41 may also include both an internal storage unit of the composite insulator aging state evaluation terminal device 4 and an external storage device. The memory 41 is used to store the computer program and other programs and data required by the composite insulator aging state evaluation terminal equipment. The memory 41 can also be used to temporarily store data that has been output or will be output.

Those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used for illustration. In practical applications, the above-mentioned functions can be assigned to different functional units, Completion of modules means that the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment may be integrated into one processing unit, or each unit may exist separately physically, or two or more units may be integrated into one unit, and the above-mentioned integrated units may adopt hardware It can also be implemented in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present application. For the specific working process of the units and modules in the above system, reference may be made to the corresponding process in the foregoing method embodiments, and details will not be repeated here.

In the above-mentioned embodiments, the descriptions of each embodiment have their own emphases, and for parts that are not detailed or recorded in a certain embodiment, refer to the relevant descriptions of other embodiments.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the device/terminal device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units Or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated module/unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention realizes all or part of the processes in the methods of the above embodiments, and can also be completed by instructing related hardware through computer programs. The computer program can be stored in a computer-readable storage medium, and the computer When the program is executed by the processor, the steps in the above-mentioned various method embodiments can be realized. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a removable hard disk, a magnetic disk, an optical disk, a computer memory, and a read-only memory (ROM, Read-Only Memory) , Random Access Memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content contained in the computer-readable medium may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable Excluding electrical carrier signals and telecommunication signals.

The above-described embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still carry out the foregoing embodiments Modifications to the technical solutions recorded in the examples, or equivalent replacement of some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should be included in within the protection scope of the present invention.

Claims (10)

1. A method for evaluating the aging state of a composite insulator, characterized in that it comprises: Carry out anti-aging performance test, macro-hydrophobic performance test, hardness change value test, brightness change value test and molecular group change value test respectively for the composite insulator to be tested; Determine the aging of the composite insulator to be tested according to the test results of anti-aging performance, macro-hydrophobic performance, hardness change value, brightness change value and molecular group change value of the composite insulator to be tested status value; The aging degree of the composite insulator to be tested is determined according to the aging state value. 2. The method for evaluating the aging state of a composite insulator according to claim 1, wherein the aging performance test of the composite insulator to be tested comprises: performing thermal oxygen accelerated aging treatment on the shed of the composite insulator to be tested; According to the initial hardness value of the shed of the composite insulator to be tested and the hardness value after the thermal oxygen accelerated aging treatment, the test result of the anti-aging performance of the composite insulator to be tested is determined. 3. The method for evaluating the aging state of composite insulators according to claim 1, wherein the macro-hydrophobicity test of the composite insulator to be tested comprises: performing a static contact angle treatment on the shed of the composite insulator to be tested; According to at least one static contact angle after the static contact angle treatment of the composite insulator to be tested, the test result of the macroscopic hydrophobic performance of the composite insulator to be tested is determined. 4. The method for evaluating the aging state of a composite insulator according to claim 1, wherein said testing the hardness change value of the composite insulator to be tested comprises: Cutting the shed of the composite insulator to be tested; According to the surface hardness value of the shed of the composite insulator to be tested and the hardness value of the cut surface after the cutting process, the test result of the hardness change value of the composite insulator to be tested is determined. 5. The method for evaluating the aging state of composite insulators according to claim 1, wherein the testing of the brightness change value of the composite insulator to be tested comprises: Cutting the shed of the composite insulator to be tested; According to the brightness value of the shed surface color space of the composite insulator to be tested and the brightness value of the color space of the cut surface after the cutting process, the brightness change value result of the composite insulator to be tested is determined. 6. The method for evaluating the aging state of composite insulators according to claim 1, wherein the testing of the molecular group change value of the composite insulator to be tested comprises: Carrying out infrared spectrum analysis on the surface of the shed of the composite insulator to be tested; Cutting the shed of the composite insulator to be tested, and performing infrared spectrum analysis on the cut surface; According to the surface absorbance ratio after infrared spectrum analysis processing and the cut surface absorbance ratio after infrared spectrum analysis processing on the cut surface, the molecular group change value result of the composite insulator to be tested is determined. 7. The method for evaluating the aging state of composite insulators according to claim 1, characterized in that, according to the test results of the anti-aging performance of the composite insulator to be tested, the test results of the macroscopic hydrophobic performance, the test results of the hardness change value, the brightness Degree change value test results and molecular group change value test results, determining the aging state value of the composite insulator to be tested includes: Determine the aging state of the composite insulator to be tested according to the expression F _{aging state} =a*△H _x°C +b*A _av -c*△H _shore -d*△L ^* -e*△IR _w/n -f where a, b, c, d, e, f are the preset coefficient values, △H _{x ℃} is the test result of anti-aging performance of the composite insulator to be tested, and A _av is the macroscopic hydrophobicity of the composite insulator to be tested Performance test results, △H _shore is the test result of the hardness change value of the composite insulator to be tested, △L ^* is the test result of the brightness change value of the composite insulator to be tested, △IR _w/n is the molecular group change value of the composite insulator to be tested Test Results. 8. The method for evaluating the aging state of a composite insulator according to claim 1, wherein said determining the aging degree of said composite insulator to be tested according to said aging state value comprises: Obtain the maximum value among the aging state values; The aging degree corresponding to the maximum value is determined as the aging degree of the composite insulator to be tested. 9. A device for evaluating the aging state of composite insulators, comprising: The performance test module is used to test the anti-aging performance, macro-hydrophobicity test, hardness change value test, brightness change value test and molecular group change value test of the composite insulator to be tested; The aging state value determination module is used to determine according to the aging resistance performance test results, macroscopic hydrophobic performance test results, hardness change value test results, brightness change value test results and molecular group change value test results of the composite insulator to be tested. The aging state value of the composite insulator to be tested; The aging degree determination module is configured to determine the aging degree of the composite insulator to be tested according to the aging state value. 10. A terminal device for evaluating the aging state of composite insulators, comprising a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein the processor executes the computer program When realizing the steps of the method as described in any one of claims 1 to 8.