CN106769819A - A kind of filthy aging testing method of silicon rubber insulator - Google Patents
A kind of filthy aging testing method of silicon rubber insulator Download PDFInfo
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- CN106769819A CN106769819A CN201611110610.2A CN201611110610A CN106769819A CN 106769819 A CN106769819 A CN 106769819A CN 201611110610 A CN201611110610 A CN 201611110610A CN 106769819 A CN106769819 A CN 106769819A
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- silicon rubber
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/004—Investigating resistance of materials to the weather, to corrosion, or to light to light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/008—Monitoring fouling
Abstract
The invention provides a kind of filthy aging testing method of silicon rubber insulator, comprise the following steps, after silicon rubber insulation substring is cut first, obtain silicon rubber insulation sub-pieces；The dust stratification for treating geodetic area is sampled, and obtains gray haze sample；Then above-mentioned steps are obtained after gray haze sample mixes with water, obtains gray haze filth solution, then after carrying out artificial pollution treatment to the silicon rubber insulation sub-pieces using gray haze filth solution, obtain silicon rubber insulation sub-pieces to be measured；The silicon rubber insulation sub-pieces to be measured that above-mentioned steps are obtained finally is carried out into degradation, the simulation ageing state of silicon rubber insulator is obtained after calculating.The filthy aging testing method of present invention offer is aging can be highly fitted the aging action that all kinds of complicated haze environment are produced to silastic material, simplify experiment difficulty, reduce experimental cost, shorten experimental period, with highly important directive significance and economic worth.
Description
Technical field
The invention belongs to power system O＆M technical field, and in particular to a kind of filthy degradation of silicon rubber insulator
Method, more particularly to a kind of filthy aging testing method for simulating the silicon rubber insulator under actual complex haze environment.
Background technology
Electric transmission line isolator is chronically exposed to open air, and due to the factors such as ash, the industrial pollution influence that falls naturally, surface can be attached
Dunghill, pollution layer is formed.Under the larger environment of humidity, pollution layer meeting moisture absorption is made moist so that the soluble electrolyte in pollution layer
Dissolving, pollution layer starts conduction, and contaminated insulator surface will flow through the leakage current of certain amplitude, progressively develop into shelf depreciation.
When the development of electric arc two electrodes upper and lower through insulator, there is flashover in insulating surface, cause pollution flashover phenomenon.Pollution flashover accident is big
Mostly occur under working voltage, with influence area it is big, power off time is long, at one tripping operation often make to close on power transmission and transforming equipment and involved
The features such as economic loss for act, causing is big, is a big threat of power external insulation equipment normal operation, electric power netting safe running.
Industry, traffic, life waste gas, flue dust and airborne dust (fine particle) enter lower atmosphere and form haze, solidifying as mist
Tuberculosis；Aerosol mist oozes existing, the diffusion of obstruction waste gas, flue dust etc. again, absorption SO soluble in water simultaneously2、NOxDeng gas, formed
Serious haze weather.Particularly in recent years, China's haze weather is increasingly serious, and the gradation for surface pollution of each department presents and increases to become year by year
Gesture, the various dusts pollution come with haze weather forms pollution layer on the surface of insulator, and uniform in outdoor operation
It is lentamente set to make moist aging, hydrophily is raised, hydrophobicity reduction, fog electrical conductivity is stepped up, and more exacerbates outdoor operation
Insulator surface conductance increase, its flashover voltage is greatly reduced.And a large amount of filths are coexisted with ultraviolet with what is moistened,
The erosion of high temperature, ozone, acid rain etc. is also to cause isolator material surface that aging principal element occurs, more so as to cause
Corona discharge, surface-discharge, or even punch-through occur.Additionally, the reduction of insulating properties can cause many electrical apparatus external insulations
New failure, influences whole power system security reliably to run, and particularly haze pollution condition is complicated, makes haze heavy pollution area
Pollution flashover accident probability of happening increases.
Therefore, outdoor silicon rubber insulation substring is detected in time, particularly to haze heavy pollution area, it is ensured that it can
By operation, safeguard and replacing in time, the reliability service for power network is most important, the silicon rubber artificial accelerated aging examination reported
Proved recipe method such as 1000h saline fog methods and 5000h degradation methods is although different, but be substantially concentrate on electric discharge haze device
Inside carry out, aging condition regulation is limited in experiment.To insulator chain is carried out complicated haze environmental aging simulation (such as salt fog,
Ultraviolet, ozone, high humidity high temperature/low temperature and sour gas etc.), then it is necessarily required to carry out the different experiment of multigroup condition setting,
Not only the inside configuration of all devices cannot meet collaboration carries out simulation (such as flying dust, the saline and alkaline, sea of real complexity haze environment
Water, ozone, Exposure to Sunlight, drench with rain, the nature such as severe cold, heat and industrial ageing pollution), taking more will be up to more than tens thousand of hour.
Therefore, a kind of filthy aging testing method of silicon rubber insulator how is obtained, it is especially a kind of to be directed to various realities
(such as highlands, coastal area, heavy fog haze IA, high humidity high temperature/low temp area) is outdoor under the complexity haze environment of border
The filthy accelerated ageing analogue experiment method of the silicon rubber insulator of operation, it has also become production firm and many lines grind in industry
Study carefully personnel's problem demanding prompt solution.
The content of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of filthy degradation of silicon rubber insulator
Method, particularly a kind of detection method of the filthy degradation for simulating the silicon rubber insulator under actual complex haze environment,
The filthy aging testing method stabilization that the present invention is provided, comprehensive simulation process is simple, and reduce senile experiment cost and
Time, improve the simulation precision of senile experiment.
The invention provides a kind of filthy aging testing method of silicon rubber insulator, comprise the following steps：
1) after silicon rubber insulation substring is cut, silicon rubber insulation sub-pieces is obtained；
The dust stratification for treating geodetic area is sampled, and obtains gray haze sample；
2) above-mentioned steps are obtained after gray haze sample mixes with water, obtaining gray haze filth solution, then it is dirty using the gray haze
After dirty solution carries out artificial pollution treatment to the silicon rubber insulation sub-pieces, silicon rubber insulation sub-pieces to be measured is obtained；
3) the silicon rubber insulation sub-pieces to be measured that above-mentioned steps are obtained is carried out into degradation, silicon rubber insulation is obtained after calculating
The simulation ageing state of son.
Preferably, the rated voltage of the silicon rubber insulation substring is 10~500kV；
A diameter of 1~30cm of the silicon rubber insulation sub-pieces；The thickness of the silicon rubber insulation sub-pieces be 0.5~
40mm。
Preferably, the area to be measured is to need to carry out the region of degradation；
The area to be measured includes that highlands, coastal area, heavy fog haze IA, high humidity high temperature area and high humidity are low
One or more in warm area；
The position of the sampling includes or many in soil, electrical equipment, the device on electrical equipment periphery and building
It is individual.
Preferably, the mass concentration of the gray haze filth solution is 30%~90%；
The artificial pollution is processed as the solution combined surface in the silicon rubber insulation sub-pieces of gray haze filth.
Preferably, the degradation is the actual haze environmental aging experiment of simulation；
The degradation includes that salt fog degradation, acid mist degradation, weathering test, temperature/humidity are aging
One or more in experiment and ozone aging experiment.
Preferably, the temperature/humidity degradation includes constant temperature and humidity degradation, high humidity high-temperature circulation test, height
One or more in wet low temperature aging experiment and high/low temperature alternation degradation.
Preferably, the concentration of the condition of the degradation including salt fog, the duration of salt fog, the concentration of acid mist, acid mist
Duration, the species of ultraviolet radiation, Fluorescent Magnetic Flaw Detector, the aging duration of ultraviolet radiation, the concentration of ozone, ozone it is aging
One or more in the aging duration of duration, temperature, the aging duration of temperature, humidity and humidity.
Preferably, the salt fog is NaCl salt fogs, and the concentration of the salt fog is 5%~26.5%, the duration of the salt fog
It is 200~5000h；
The acid mist is the mixing acid mist of glacial acetic acid and NaCl, and the pH value of the acid mist is 3.1~6.9, the acid mist
200~5000h of Shi Changwei；
The ultraviolet lamp source is one or more in UVA340, UVB313, UVC351 and xenon lamp, the ultraviolet lamp
Source irradiance is 0.3~550W/m2；Ultraviolet irradiation it is aging when it is a length of
100~3000h；
The concentration of the ozone be 10~50000pphm, the ozone it is aging when a length of 100~500h；
The temperature of the temperature/humidity degradation is -50~50 DEG C, and the humidity of the temperature/humidity degradation is
10~98%R.H, when a length of 100~1000h of the temperature/humidity degradation.
Preferably, the step 3) it is specially：
According to the haze environment in area to be measured, selection salt fog degradation, acid mist degradation, weathering test, temperature
Various in degree/humidity aged experiment and ozone aging experiment are combined, and the species tested, order and condition are adjusted
It is whole, actual haze environment is simulated, multigroup degradation is carried out, periodically quadrature-sampled in batches, Evaluation obtains silicon rubber after calculating
The simulation ageing state of glue insulator.
The invention provides the filthy aging testing method described in above-mentioned technical proposal any one in silicon rubber insulator
Dispatch from the factory the O＆M shape of inspection, the forecast assessment of outdoor operation silicon rubber insulator state or outdoor operation silicon rubber insulator state
Application in terms of condition.
The invention provides a kind of filthy aging testing method of silicon rubber insulator, comprise the following steps, first by silicon
After the cutting of rubber-covered substring, silicon rubber insulation sub-pieces is obtained；The dust stratification for treating geodetic area is sampled, and obtains gray haze sample；
Then above-mentioned steps are obtained after gray haze sample mixes with water, obtaining gray haze filth solution, then using gray haze filth solution
After carrying out artificial pollution treatment to the silicon rubber insulation sub-pieces, silicon rubber insulation sub-pieces to be measured is obtained；Finally by above-mentioned steps
The silicon rubber insulation sub-pieces to be measured for obtaining carries out degradation, and the simulation ageing state of silicon rubber insulator is obtained after calculating.With
Prior art is compared, and the present invention adjusts limited for existing senile experiment condition, and cannot configure collaboration, meets real
The simulation of complicated haze environment, or the time-consuming defect that will reach more than tens thousand of hours of simulation.Propose a kind of silicon rubber insulator
Filthy aging testing method, especially for actual various complicated haze environment under (such as highlands, coastal area, heavy fog
Haze IA, high humidity high temperature/low temp area etc.) insulator of outdoor operation carries out the simulated experiment side of filthy accelerated ageing
Method.
This method reduces whole branch insulator chain and is taken up space, greatly with excision forming silicon rubber insulation sub-pieces as research object
Width increase is available for aging silicon rubber sample size；For existing use diatomite, kaolin, methylcellulose, titanium dioxide
, there is significant limitation and relatively low representational ask in the mixture artificial pollution mode of the configurations such as silicon, clay and sodium chloride
Topic, the actual haze infiltration of altitude simulation declines influence to the hydrophobicity that silastic material surface produces, directly in local soil, electricity
Gas equipment and its neighbouring device, building etc. carry out dust stratification gray haze manual sampling, and configuration includes various actual insoluble matters and water-soluble
The high concentration gray haze solution of property ion, artificial pollution treatment is carried out to silicon rubber insulation sub-pieces；Various actual complex mists are directed to again
Haze environment (such as highlands, coastal area, heavy fog haze IA, high humidity high temperature/low temp area) carries out senile experiment, obtains
To comprehensive accelerated ageing state of the true simulation in the case of filthy humidity.The filthy aging testing method that the present invention is provided is old
Change can be applied to dispatch from the factory the inspection of silicon rubber insulation protonatomic mass, the forecast assessment of outdoor operation insulator state, reliability service,
Safeguard and replacing in time.While being highly fitted the aging action that all kinds of complicated haze environment are produced to silastic material, simplify
Experiment difficulty, reduces experimental cost, shortens experimental period, with highly important directive significance and economic worth.
Brief description of the drawings
The experiment process figure of the filthy aging testing method of the silicon rubber insulator that Fig. 1 is provided for the present invention；
Fig. 2 is that the present invention is placed in silicon rubber insulation sub-pieces photo aging in ozone testing machine；
Fig. 3 is passed through under silicon rubber insulation sub-pieces (left side) and true environment under the true environment are simulated for the embodiment of the present invention 1
The contrast photo in kind of the silicon rubber insulation sub-pieces (right side) for spending 8 years；
After the accelerated ageing that Fig. 4 embodiment of the present invention 1 is obtained silicon rubber insulation sub-pieces (on) and true environment under by 8
Year silicon rubber insulation sub-pieces (under) microscope contrast photo.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, but
It should be appreciated that these descriptions are intended merely to further illustrate the features and advantages of the present invention, rather than to invention claim
Limitation.
The all raw materials of the present invention, originate to it and are not particularly limited, commercially buying or according to people in the art
Known to member prepared by conventional method.
The all raw materials of the present invention, are not particularly limited to its purity, present invention preferably employs the pure or water-coal-slurry field of analysis
Conventional purity.
Exclusive noun of the present invention and calculation, meet this area and the conventional of its are understood and definition, press
According to common-sense reasoning well known to those skilled in the art.
The invention provides a kind of filthy aging testing method of silicon rubber insulator, comprise the following steps：
1) after silicon rubber insulation substring is cut, silicon rubber insulation sub-pieces is obtained；
The dust stratification for treating geodetic area is sampled, and obtains gray haze sample；
2) above-mentioned steps are obtained after gray haze sample mixes with water, obtaining gray haze filth solution, then it is dirty using the gray haze
After dirty solution carries out artificial pollution treatment to the silicon rubber insulation sub-pieces, silicon rubber insulation sub-pieces to be measured is obtained；
3) the silicon rubber insulation sub-pieces to be measured that above-mentioned steps are obtained is carried out into degradation, silicon rubber insulation is obtained after calculating
The simulation ageing state of son.
After the present invention first cuts silicon rubber insulation substring, silicon rubber insulation sub-pieces is obtained；Treat the dust stratification in geodetic area
It is sampled, obtains gray haze sample.
The present invention is not particularly limited to the silicon rubber insulation substring, exhausted with silicon rubber well known to those skilled in the art
Edge substring, those skilled in the art can be selected and be adjusted according to actual conditions, operational procedure and calculating requirement,
The rated voltage of silicon rubber insulation substring of the present invention is preferably 10~500kV, more preferably 35~500kV, most preferably
66~500kV.The present invention is not particularly limited to the silicon rubber insulation sub-pieces, after cutting well known to those skilled in the art
Silicon rubber insulation sub-pieces, those skilled in the art can according to actual conditions, operational procedure and calculate requirement carry out
Selection and adjustment, the diameter of silicon rubber insulation sub-pieces of the present invention are preferably 1~30cm, more preferably 5~25cm, most preferably
It is 10~20cm；The thickness of silicon rubber insulation sub-pieces of the present invention is preferably 0.5~40mm, more preferably 5~35mm, optimal
Elect 10~30mm as.
The present invention is not particularly limited to the area to be measured, and actual survey is conventionally used for well known to those skilled in the art
The area of examination, those skilled in the art can be selected and be adjusted according to actual conditions, operational procedure and calculating requirement
Whole, area to be measured of the present invention is preferably and needs to carry out the region of degradation, and the area to be measured specifically includes plateau
One or more in area, coastal area, heavy fog haze IA, high humidity high temperature area and high humidity low temp area.
The present invention is not particularly limited to the method and condition of the sampling, with industry well known to those skilled in the art
Conventional sampling method and condition, those skilled in the art can require according to actual conditions, operational procedure and calculating
Selected and adjusted, the sample size of sampling of the present invention is preferably 5~500g, more preferably 50~400g, most preferably
100~300g.The position of sampling of the present invention preferably includes soil, electrical equipment, the device on electrical equipment periphery and building
In one or more, more preferably soil, electrical equipment, the device on electrical equipment periphery and building in carry out comprehensive sampling,
Improve the validity and the depth of parallelism of sampling.
Step 1 of the present invention) it is specifically as follows：
Multiple silicon rubber insulation sub-pieces are cut from whole branch silicon rubber insulation substring, its diameter is preferably 1~30cm, and thickness is excellent
Elect 0.5~40mm as, it is ensured that its dry tack free and without scar；Needing to carry out in haze environmental aging pilot region, from locality
Ground, electrical equipment and its neighbouring device, building etc. carry out dust stratification gray haze and sample 5~500g, loaded in drying receptacle.
The present invention and then above-mentioned steps are obtained after gray haze sample mixes with water, to obtain the filthy solution of gray haze, then using institute
State gray haze filth solution artificial pollution treatment is carried out to the silicon rubber insulation sub-pieces after, obtain silicon rubber insulation sub-pieces to be measured.
The present invention is not particularly limited to the method and condition of the mixing, with such sample well known to those skilled in the art
The mixed method and condition of product, those skilled in the art can according to actual conditions, operational procedure and calculating require into
Row selection and adjustment.The present invention is not particularly limited to the parameter of gray haze filth solution, and those skilled in the art can be with root
Selected and adjusted according to actual conditions, operational procedure and calculating requirement, the quality of gray haze filth solution of the present invention is dense
Degree is preferably 30%~90%, more preferably 40%~80%, most preferably 50%~70%.
The present invention is not particularly limited to the method and condition of artificial pollution treatment, is known with those skilled in the art
Artificial pollution treatment method and condition, those skilled in the art can be according to actual conditions, operational procedure and meter
Calculate requirement to be selected and adjusted, time of artificial pollution of the present invention treatment is preferably 0.1~50h, more preferably 1~
40h, most preferably 10~30h；Artificial pollution treatment of the present invention is preferably the gray haze is filthy solution combined described
The surface of silicon rubber insulation sub-pieces.The present invention is not particularly limited to described being combined, with well known to those skilled in the art compound
Definition, those skilled in the art according to actual conditions, operational procedure and can calculate requirement and be selected and adjusted,
One or more be combined in preferably including to impregnate, soak, smear, spray and brush of the present invention, more preferably impregnates, soaks
Bubble, smearing, spraying are brushed.
Step 2 of the present invention) it is specifically as follows：
Obtain pouring into pure water in gray haze sample to above-mentioned steps, stir, obtain the gray haze solution of high concentration.
The high concentration gray haze filth solution of configuration includes various actual insoluble matters and water soluble ion.By silicon rubber insulation sub-pieces in gray haze
Rotated in solution several weeks, be then immersed in solution, carry out the artificial pollution treatment of 0.1~50h, treat pollution severity of insulators point
After cloth is more uniform, ventilation stand for standby use is finally positioned over, obtains silicon rubber insulation sub-pieces to be measured.
The silicon rubber insulation sub-pieces to be measured that above-mentioned steps are obtained finally is carried out degradation by the present invention, and silicon is obtained after calculating
The simulation ageing state of rubber insulator.
The present invention is not particularly limited to the concept of the degradation, with well known old in those skilled in the art field
Change the concept of experiment, degradation of the present invention preferably refers to the actual haze environmental aging experiment of simulation.The present invention is right
The degradation is not particularly limited, with well known degradation, art technology in those skilled in the art field
Personnel can be selected and be adjusted according to actual conditions, operational procedure and calculating requirement, and degradation of the present invention is excellent
Choosing includes salt fog degradation, acid mist degradation, weathering test, temperature/humidity degradation and ozone aging experiment
In one or more, more preferably salt fog degradation, acid mist degradation, weathering test, the aging examination of temperature/humidity
Test and tested with ozone aging, most preferably salt fog degradation, acid mist degradation, weathering test, temperature/humidity are aging
Experiment and the Orthogonal Composite of ozone aging experiment.The present invention is not particularly limited to the temperature/humidity degradation, with ability
Temperature/humidity degradation known to field technique personnel, those skilled in the art can be according to actual conditions, operational procedure
And calculating requirement is selected and adjusted, temperature/humidity degradation of the present invention preferably includes the aging examination of constant temperature and humidity
Test, high humidity high-temperature circulation test, high humidity low temperature aging experiment and high/low temperature alternation degradation in one or more, more preferably
It is constant temperature and humidity degradation, high humidity high-temperature circulation test, the experiment of high humidity low temperature aging and high/low temperature alternation degradation.
The present invention is not particularly limited to the experimental condition of above-mentioned degradation, and this is old with well known to those skilled in the art
Change the actual conditions of experiment, those skilled in the art can be carried out according to actual conditions, operational procedure and calculating requirement
Selection and adjust, the condition of degradation of the present invention preferably include the concentration of salt fog, the duration of salt fog, the concentration of acid mist,
The duration of acid mist, the species of ultraviolet radiation, Fluorescent Magnetic Flaw Detector, the aging duration of ultraviolet radiation, the concentration of ozone, ozone
Aging duration, temperature, the aging duration of temperature, the aging duration of humidity and humidity in one or more, more preferably salt
It is the concentration of mist, the duration of salt fog, the concentration of acid mist, the duration of acid mist, the species of ultraviolet radiation, Fluorescent Magnetic Flaw Detector, ultraviolet
The aging duration of beta radiation, the concentration of ozone, the aging duration of ozone, temperature, the aging duration of temperature, humidity and humidity it is old
Change duration.The present invention is not particularly limited to the test parameters of above-mentioned degradation, and this is old with well known to those skilled in the art
Change the design parameter of experiment, those skilled in the art can be carried out according to actual conditions, operational procedure and calculating requirement
Selection and adjustment, salt fog of the present invention are preferably NaCl salt fogs；The concentration of the salt fog is preferably 5%~26.5%, more excellent
Elect 8%~23%, most preferably 10%~20% as；The duration of the salt fog is preferably 200~5000h, more preferably 1000
~4000h, most preferably 2000~3000h；The acid mist is preferably the mixing acid mist of glacial acetic acid and NaCl；The pH of the acid mist
Value is preferably 3.1~6.9, more preferably 3.5~6.5, most preferably 4.5~5.5；The duration of the acid mist is preferably 200~
5000h, more preferably 1000~4000h, most preferably 2000~3000h；The ultraviolet lamp source be preferably UVA340,
One or more in UVB313, UVC351 and xenon lamp；The ultraviolet lamp source irradiance is preferably 0.3~550W/m2, it is more excellent
Elect as
1~500W/m2, more preferably 10~400W/m2, most preferably 100~300W/m2；It is old that the ultraviolet is irradiated
Change duration and be preferably 100~3000h, most preferably more preferably 500~2500h, 1000~2000h；The concentration of the ozone
Preferably 10~50000pphm, more preferably 100~40000pphm, more preferably 1000~30000pphm, most preferably
10000~20000pphm；The aging duration of the ozone is preferably 100~500h, more preferably 200~400h, most preferably
250~350h；The temperature of the temperature/humidity degradation is preferably -50~50 DEG C, more preferably -30~30 DEG C, most preferably
It is -10~10 DEG C；The humidity of the temperature/humidity degradation is preferably 10~98%R.H, more preferably 30~80%R.H,
Most preferably 50~60%R.H；The duration of the temperature/humidity degradation is preferably 100~1000h, more preferably 300~
800h, most preferably 500~600h.
The present invention is not particularly limited to the method for the calculating, in terms of similar experiment well known to those skilled in the art
Calculation method, those skilled in the art can be selected and be adjusted according to actual conditions, operational procedure and calculating requirement,
Of the present invention calculating is preferably multigroup degradation, and periodically quadrature-sampled in batches, Evaluation, are calculated.
The authenticity and reliability of the filthy degradation of simulation of the present invention to improve silicon rubber insulator, preferably reduction
Actual aging conditions, the step 3) it is particularly preferred as：
According to the haze environment in area to be measured, selection salt fog degradation, acid mist degradation, weathering test, temperature
Various in degree/humidity aged experiment and ozone aging experiment are combined, and the species tested, order and condition are adjusted
It is whole, actual haze environment is simulated, multigroup degradation is carried out, periodically quadrature-sampled in batches, Evaluation obtains silicon rubber after calculating
The simulation ageing state of glue insulator.
Above-mentioned steps of the present invention provide a kind of filthy aging testing method of silicon rubber insulator, i.e., a kind of for actual
(such as highlands, coastal area, heavy fog haze IA, high humidity high temperature/low temp area) family under various complicated haze environment
The insulator of outer operation carries out the analogue experiment method of filthy accelerated ageing.This method is with excision forming silicon rubber insulation sub-pieces
Research object, reduces whole branch insulator chain and is taken up space, and is significantly increased and is available for aging silicon rubber sample size；Directly in locality
Soil, electrical equipment and its neighbouring device, building etc. carry out dust stratification gray haze manual sampling, and configuration includes various actual insoluble matters
With the high concentration gray haze solution of water soluble ion, artificial pollution treatment is carried out to silicon rubber insulation sub-pieces；Salt fog and sour gas,
Ultraviolet, ozone, high humidity high temperature/low temperature aging experiment are respectively adopted salt spray test chamber, weather resistance test case, ozone chamber, perseverance
Steady temperature damp test case and high low temperature cycles test case are carried out.Various regions targetedly aging condition, such as salt fog/acid mist concentration and
Duration, ultraviolet species, irradiation level and duration, ozone concentration and duration, temperature/humidity and duration can take scientific rationality
Collocation and setting.From silastic material physics, the angle of chemical aging, the degradation instrument of different purposes of flexibly arranging in pairs or groups, pin
To various actual complex haze environment (such as highlands, coastal area, heavy fog haze IA, high humidity high temperature/low temp area
Deng) the adjustable setting of synthesis of aging condition is carried out, truly simulate its comprehensive accelerated ageing state in the case of filthy humidity.
Again for various actual complex haze environment (such as highlands, coastal area, heavy fog haze IA, high humidity high temperature/cryogenically
Area etc.) senile experiment is carried out, obtain comprehensive accelerated ageing state of the true simulation in the case of filthy humidity.
Referring to Fig. 1, the experiment process figure of the filthy aging testing method of the silicon rubber insulator that Fig. 1 is provided for the present invention.
Referring to Fig. 2, Fig. 2 is that the present invention is placed in silicon rubber insulation sub-pieces photo aging in ozone testing machine.
Present invention also offers the filthy aging testing method described in above-mentioned technical proposal any one in silicon rubber insulation
Son dispatches from the factory the O＆M of inspection, the forecast assessment of outdoor operation silicon rubber insulator state or outdoor operation silicon rubber insulator state
Application in terms of situation.
The inspection of the aging silicon rubber insulation protonatomic mass that can be applied to dispatch from the factory of filthy aging testing method that the present invention is provided,
The forecast assessment of outdoor operation insulator state, reliability service, maintenance and change in time.Highly it is fitted all kinds of complicated haze environment
While the aging action produced to silastic material, simplify experiment difficulty, reduce experimental cost, shorten experimental period, have
Highly important directive significance and economic worth.
In order to further illustrate the present invention, a kind of dirt of the silicon rubber insulator for providing the present invention with reference to embodiments
Dirty aging testing method is described in detail, but it is to be understood that these embodiments are premised on technical solution of the present invention
Under implemented, detailed implementation method and specific operating process is given, simply to further illustrate feature of the invention
And advantage, rather than limiting to the claimed invention, protection scope of the present invention is also not necessarily limited to following embodiments.
Embodiment 1
1st, from rated voltage for the whole branch silicon rubber insulation substring of 220kV cuts 60 semi-circular shape silicone rubber plates, its is straight
Footpath is~17cm, and thickness is~14mm, it is ensured that its dry tack free and without scar；
2nd, in Changchun City power plant haze environmental aging pilot region, from the dress of local near electrical equipment
Putting, build etc. nearby carries out artificial dust stratification gray haze sampling~72.5g, loaded in drying receptacle；
3rd, 40g pure water will be poured into the dust stratification gray haze of acquisition ,~64% high concentration gray haze solution is stirred.
The high concentration gray haze filth solution of configuration includes various actual insoluble matters and water soluble ion.By silicone rubber plate in gray haze solution
Rotation several weeks, then it is immersed in solution, carries out 10h artificial pollution treatment, after after pollution severity of insulators distribution uniform, puts
It is placed in ventilation stand for standby use；
4th, from salt spray test chamber, weather resistance test case, ozone chamber and high low temperature cycles test case locality haze environment
Carry out reasonably combined simulation to use, the senile experiment condition of silicon rubber insulation sub-pieces is set：
1) concentration of saline fog that salt fog cabinet is used for 5% the NaCl aqueous solution, a length of 5 months~3600h when salt fog is aging.Often
15 days~360h takes sample once, marks successively, takes altogether 10 times.
2) the aging silicone rubber plate of above-mentioned 1 stage salt fog is put into weather resistance test case, ultraviolet lamp source is xenon lamp；Irradiation
First week~168h is spent for 0.4w/m2, second week~336h is 0.8w/m2, the 3rd week~504h is 1.2w/m2, 4th week~
672h is 1.6w/m2, a length of~672h during total irradiation.Weekly~168h samplings once, are marked successively, are taken altogether 4 times.
3) silicone rubber plate by above-mentioned 2 stage after aging is put into ozone testing machine, and ozone concentration is 50pphm, and total duration is
30 days altogether~720h.Every 10 days~240h samplings once, are marked successively, are taken altogether 3 times.
4) silicone rubber plate by above-mentioned 3 stage after aging is put into high low temperature cycles test case, is set temperature and is respectively (30
DEG C, 14h)/day and (- 20 DEG C, 10h)/day, total duration is 30 days altogether~720h.Every 10 days~240h samplings once, are marked successively
Note, takes 3 times altogether.
Regular quadrature-sampled in batches, by Evaluation, interim true simulation silicon rubber insulation sub-pieces is filthy moist
In the case of comprehensive accelerated ageing state.
Referring to Fig. 3, Fig. 3 is the silicon rubber insulation sub-pieces (left side) that the embodiment of the present invention 1 is simulated under the true environment and truly
The in kind of silicon rubber insulation sub-pieces (right side) under environment by 8 years contrasts photo.
Referring to Fig. 4, silicon rubber insulation sub-pieces after the accelerated ageing that Fig. 4 embodiment of the present invention 1 is obtained (on) and true ring
Under border by 8 years silicon rubber insulation sub-pieces (under) microscope contrast photo.
Contrasted by with the simulation silicon rubber insulator under the true environment being modeled, the embodiment of the present invention 1 is obtained
Simulation it is aging after silicon rubber insulation sub-pieces, silicon rubber insulator under actual environment, both compare, and the degree of approach is 80%
More than.
Embodiment 2
1st, from rated voltage for the whole branch silicon rubber insulation substring of 110kV cuts 55 semi-circular shape silicone rubber plates, its is straight
Footpath is~8.5cm, and thickness is~9mm, it is ensured that its dry tack free and without scar；
2nd, in power plant of Daliang City of Liaoning Province haze environmental aging pilot region, from the dress of local near electrical equipment
Putting, build etc. nearby carries out accumulating artificial ash gray haze sampling~33g, loaded in drying receptacle；
3rd, 30g pure water will be poured into the dust stratification gray haze of acquisition ,~52% high concentration gray haze solution is stirred.
The high concentration gray haze filth solution of configuration includes various actual insoluble matters and water soluble ion.By silicone rubber plate in gray haze solution
Rotation several weeks, then it is immersed in solution, carries out 8h artificial pollution treatment, after after pollution severity of insulators distribution uniform, puts
It is placed in ventilation stand for standby use；
4th, from salt spray test chamber, weather resistance test case, ozone chamber, constant temperature humidity chamber and high low temperature cycles test
Case carries out reasonably combined simulation and uses for local haze environment.The senile experiment condition of silicon rubber insulation sub-pieces is set：
1) concentration of saline fog that salt fog cabinet is used for 26.5% the NaCl aqueous solution, a length of 6 months when salt fog is aging~
4320h.Monthly~672h takes sample once, marks successively, takes altogether 6 times.
2) the aging silicone rubber plate of above-mentioned 1 stage salt fog is put into weather resistance test case, ultraviolet lamp source is UVA340；Spoke
The 8th day~192h of illumination is 1.5w/m2, the 16th day~384h is 3w/m2, the 24th day~576h is 4.5w/m2, the 32nd day~
768h is 6w/m2, the 40th day~960h is 7.5w/m2, a length of 40 days~960h during total irradiation.Every 8 days~192h is sampled once,
Mark successively, take altogether 5 times.
3) silicone rubber plate by above-mentioned 2 stage after aging is put into ozone testing machine, and ozone concentration is 200pphm, total duration
It is 10 days altogether~240h.Every 5 days~120h samplings once, are marked successively, are taken altogether 2 times.
4) silicone rubber plate by above-mentioned 3 stage after aging is put into high low temperature cycles test case, is set temperature and is respectively (35
DEG C, 16h)/day and (- 15 DEG C, 8h)/day, total duration is 15 days altogether~360h.360h is sampled, and is taken altogether 1 time.
5) silicone rubber plate by above-mentioned 4 stage after aging is put into constant temperature humidity chamber, sets temperature and humidity difference
It is 25 DEG C and 80%R.H, total duration is 20 days altogether~480h.480h is sampled, and is taken altogether 1 time.
Regular quadrature-sampled in batches, by Evaluation, interim true simulation silicon rubber insulation sub-pieces is filthy moist
In the case of comprehensive accelerated ageing state.
Contrasted by with the simulation silicon rubber insulator under the true environment being modeled, the embodiment of the present invention 2 is obtained
Simulation it is aging after silicon rubber insulation sub-pieces, silicon rubber insulator under actual environment, both compare, and the degree of approach is 85%
More than.
Embodiment 3
1st, from rated voltage for the whole branch silicon rubber insulation substring of 35kV cuts 40 semi-circular shape silicone rubber plates, its diameter
It is~5.5cm, thickness is~6mm, it is ensured that its dry tack free and without scar；
2nd, in power plant of Mudanjiang City of Heilongjiang Province haze environmental aging pilot region, from local near electrical equipment
Device, building etc. nearby carry out accumulating artificial ash gray haze sampling~30g, loaded in drying receptacle；
3rd, 25g pure water will be poured into the dust stratification gray haze of acquisition ,~50% high concentration gray haze solution is stirred.
The high concentration gray haze filth solution of configuration includes various actual insoluble matters and water soluble ion.By silicone rubber plate in gray haze solution
Rotation several weeks, then it is immersed in solution, carries out 6h artificial pollution treatment, after after pollution severity of insulators distribution uniform, puts
It is placed in ventilation stand for standby use；
4th, from salt spray test chamber, weather resistance test case, ozone chamber and high low temperature cycles test case locality haze environment
Carry out reasonably combined simulation to use, the senile experiment condition of silicon rubber insulation sub-pieces is set：
1) concentration of saline fog that salt fog cabinet is used for 10.5% the NaCl aqueous solution, a length of 90 days~2160h when salt fog is aging.
Every 22.5 days~540h takes sample once, marks successively, takes altogether 4 times.
2) the aging silicone rubber plate of above-mentioned 1 stage salt fog is put into weather resistance test case, ultraviolet lamp source is UVA340；Spoke
The 22.5th day~192h of illumination is 1w/m2, the 45th day~384h is 2w/m2, the 67.5th day~576h is 3w/m2, the 90th day~
768h is 4w/m2.Every 22.5 days~540h samplings once, are marked successively, are taken altogether 4 times.
3) silicone rubber plate by above-mentioned 2 stage after aging is put into high low temperature cycles test case, is set temperature and is respectively (28
DEG C, 13h)/day and (- 30 DEG C, 11h)/day, total duration is 21 days altogether~504h.Every 7 days~168h samplings, mark successively, take altogether
3 times.
4) silicone rubber plate by above-mentioned 3 stage after aging is put into ozone testing machine, and ozone concentration is 80pphm, and total duration is
21 days altogether~480h.Every 7 days~168h samplings once, are marked successively, are taken altogether 3 times.
Regular quadrature-sampled in batches, by Evaluation, interim true simulation silicon rubber insulation sub-pieces is filthy moist
In the case of comprehensive accelerated ageing state.
Contrasted by with the simulation silicon rubber insulator under the true environment being modeled, the embodiment of the present invention 3 is obtained
Simulation it is aging after silicon rubber insulation sub-pieces, silicon rubber insulator under actual environment, both compare, and the degree of approach is 83%
More than.
A kind of filthy aging testing method of the silicon rubber insulator for providing the present invention above, particularly a kind of simulation is real
The filthy aging testing method of the silicon rubber insulator under the complexity haze environment of border.It is described in detail, it is used herein
Specific case is set forth to principle of the invention and implementation method, and the explanation of above example is only intended to help and understands
The method of the present invention and its core concept, including best mode, and also cause that any person skilled in the art can be real
Trample the present invention.It should be pointed out that for those skilled in the art, not departing from the premise of the principle of the invention
Under, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the protection of the claims in the present invention
In the range of.The scope of patent protection of the present invention is defined by the claims, and may include those skilled in the art it is conceivable that
Other embodiment.If these other embodiments have the structural element for being not different from claim character express, or
If they include equivalent structural elements of the character express without essence difference with claim, then these other embodiments
Should be comprising within the scope of the claims.
Claims (10)
1. the filthy aging testing method of a kind of silicon rubber insulator, it is characterised in that comprise the following steps：
1) after silicon rubber insulation substring is cut, silicon rubber insulation sub-pieces is obtained；
The dust stratification for treating geodetic area is sampled, and obtains gray haze sample；
2) above-mentioned steps are obtained after gray haze sample mixes with water, obtaining gray haze filth solution, then it is molten using the gray haze filth
After liquid carries out artificial pollution treatment to the silicon rubber insulation sub-pieces, silicon rubber insulation sub-pieces to be measured is obtained；
3) the silicon rubber insulation sub-pieces to be measured that above-mentioned steps are obtained is carried out into degradation, silicon rubber insulator is obtained after calculating
Simulation ageing state.
2. filthy aging testing method according to claim 1, it is characterised in that the silicon rubber insulation substring it is specified
Voltage is 10~500kV；
A diameter of 1~30cm of the silicon rubber insulation sub-pieces；The thickness of the silicon rubber insulation sub-pieces is 0.5~40mm.
3. filthy aging testing method according to claim 1, it is characterised in that the area to be measured is carried out always for needs
Change the region of experiment；
The area to be measured includes highlands, coastal area, heavy fog haze IA, high humidity high temperature area and high humidity cryogenically
One or more in area；
The position of the sampling includes one or more in soil, electrical equipment, the device on electrical equipment periphery and building.
4. filthy aging testing method according to claim 1, it is characterised in that the quality of the gray haze filth solution is dense
Spend is 30%~90%；
The artificial pollution is processed as the solution combined surface in the silicon rubber insulation sub-pieces of gray haze filth.
5. filthy aging testing method according to claim 1, it is characterised in that the degradation is the actual mist of simulation
Haze environmental aging is tested；
The degradation includes salt fog degradation, acid mist degradation, weathering test, temperature/humidity degradation
With one or more in ozone aging experiment.
6. filthy aging testing method according to claim 5, it is characterised in that the temperature/humidity degradation bag
Include constant temperature and humidity degradation, high humidity high-temperature circulation test, high humidity low temperature aging experiment and high/low temperature alternation degradation in
One or more.
7. filthy aging testing method according to claim 5, it is characterised in that the condition of the degradation includes salt
It is the concentration of mist, the duration of salt fog, the concentration of acid mist, the duration of acid mist, the species of ultraviolet radiation, Fluorescent Magnetic Flaw Detector, ultraviolet
The aging duration of beta radiation, the concentration of ozone, the aging duration of ozone, temperature, the aging duration of temperature, humidity and humidity it is old
Change one or more in duration.
8. filthy aging testing method according to claim 7, it is characterised in that the salt fog is NaCl salt fogs, described
The concentration of salt fog is 5%~26.5%, when a length of 200~5000h of the salt fog；
The acid mist is the mixing acid mist of glacial acetic acid and NaCl, and the pH value of the acid mist is 3.1~6.9, the duration of the acid mist
It is 200~5000h；
The ultraviolet lamp source is one or more in UVA340, UVB313, UVC351 and xenon lamp, the ultraviolet lamp source spoke
Illumination is 0.3~550W/m2；Ultraviolet irradiation it is aging when a length of 100~3000h；
The concentration of the ozone be 10~50000pphm, the ozone it is aging when a length of 100~500h；
The temperature of the temperature/humidity degradation is -50~50 DEG C, the humidity of the temperature/humidity degradation for 10~
98%R.H, when a length of 100~1000h of the temperature/humidity degradation.
9. the filthy aging testing method according to claim 5~8 any one, it is characterised in that the step 3) tool
Body is：
According to the haze environment in area to be measured, selection salt fog degradation, acid mist degradation, weathering test, temperature/wet
Various in degree degradation and ozone aging experiment are combined, and the species tested, order and condition are adjusted, mould
Intend actual haze environment, carry out multigroup degradation, periodically quadrature-sampled in batches, Evaluation obtains silicon rubber insulation after calculating
The simulation ageing state of son.
10. the filthy aging testing method described in claim 1~9 dispatches from the factory inspection, outdoor operation silicon rubber in silicon rubber insulator
Application in terms of the O＆M situation of the forecast assessment of glue insulator state or outdoor operation silicon rubber insulator state.
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| CN107843544A (en) * | 2017-10-24 | 2018-03-27 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of high-temperature silicon disulfide rubber ageing-resistant performance method of testing based on thermo-oxidative ageing |
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