CN108872056A - The device that insulator is corroded for simulated environment - Google Patents
The device that insulator is corroded for simulated environment Download PDFInfo
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- CN108872056A CN108872056A CN201810902917.9A CN201810902917A CN108872056A CN 108872056 A CN108872056 A CN 108872056A CN 201810902917 A CN201810902917 A CN 201810902917A CN 108872056 A CN108872056 A CN 108872056A
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- 150000003839 salts Chemical class 0.000 claims abstract description 118
- 238000004088 simulation Methods 0.000 claims abstract description 73
- 239000007921 spray Substances 0.000 claims abstract description 58
- 230000007797 corrosion Effects 0.000 claims abstract description 46
- 238000005260 corrosion Methods 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000005286 illumination Methods 0.000 claims abstract description 40
- 239000003595 mist Substances 0.000 claims abstract description 38
- 230000007613 environmental effect Effects 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims description 99
- 238000005507 spraying Methods 0.000 claims description 88
- 238000002156 mixing Methods 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 238000002955 isolation Methods 0.000 claims description 16
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 11
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- 230000006835 compression Effects 0.000 claims description 10
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- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 15
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- 238000005259 measurement Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000001802 infusion Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 2
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- 230000005540 biological transmission Effects 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
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Classifications
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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
- G01N17/002—Test chambers
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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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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention provides a kind of device corroded for simulated environment to insulator, which includes：Chamber；The illumination mechanism being set in chamber, for carrying out the simulation of light environment to the insulator to be measured hung in chamber；The simulation rain making mechanism being set in chamber, is set to the top of insulator to be measured, for carrying out liquid spray to insulator to be measured；The temperature and humidity adjustment mechanism being set in chamber, for adjusting the epidemic disaster in chamber；The salt fog generator being set in chamber, is set to the lower section of insulator to be measured, for carrying out salt mist spray to insulator to be measured.The present invention, which treats to survey insulator and carry out environmental simulation in natural environment by illumination mechanism, simulation rain making mechanism, temperature and humidity adjustment mechanism, salt fog generator, to be included illumination, drenches with rain, the simulation of temperature, humidity, salt fog state, and more accurately analysis insulator is chronically at the agings of adverse circumstances, corrosion condition and counts more accurate data.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a device for simulating environment to corrode an insulator.
Background
The electric power system is an important support for national economy and is also the most complex artificial network in the world. Maintaining the stability of the power grid is an important task for developing the civil and economic aspects and is also limited by a plurality of factors. The insulator is used as a main carrier of a connecting circuit in a power grid, is an important supporting point for supporting the power grid, and has self-evident importance. Experience at home and abroad shows that a lot of line accidents are the root cause of line flashover caused by the problems of insulation quality and operation age, and particularly, as the insulator and materials are easy to solidify and rust along with the lapse of operation time, the insulator is corroded and aged, and the mechanical property and the electrical property are poor, so that the insulator must be strictly detected in order to effectively control the normal work of the insulator on a line and maintain the stable operation of a power grid, and the manual simulation of the operation environment of the insulator is a good means, so that the corrosion resistance of the insulator can be visually seen.
To date, a great deal of research work has been carried out on insulator flashover at home and abroad, and a great deal of novel insulating materials have been widely applied to power transmission lines, particularly composite insulator insulating materials. The cured properties of the insulation material decrease with the passage of operating life, while the mechanical and electrical properties of the insulator are important. The mechanical property is closely related to the material of the insulator, the mechanical property of the composite insulator is poor, and the core rod material of the insulator is corroded and broken, so that the composite insulator is a great reason for causing line flashover.
However, since the reform is open, the economy of China is rapidly developed, but due to the fact that no attention is paid to environmental protection, industrial and agricultural pollution is serious, the environment is rapidly worsened, the pH value of rainwater is not neutral, the rainwater is slowly acidified to form acid rain, the acid rain can corrode the composite insulators and the materials, and therefore corrosion of the composite insulator materials is aggravated, steel feet and steel are rusted and fall off, and flashover accidents occur.
Disclosure of Invention
In view of the above, the invention provides a device for simulating environment corrosion on an insulator, and aims to solve the problem that after the existing insulator is used for a long time, the existing insulator is corroded so that steel feet and steel rust and fall off to cause flashover accidents.
The invention provides a device for simulating environment to corrode an insulator, which comprises: a test chamber; the illumination mechanism is arranged in the test box and used for simulating an illumination environment of the insulator to be tested suspended in the test box; the artificial rainfall simulation mechanism is arranged in the test box, is arranged above the insulator to be tested, and is used for spraying liquid on the insulator to be tested so as to simulate the rain state of the insulator to be tested; the temperature and humidity adjusting mechanism is arranged in the test box and is used for adjusting the temperature and the humidity in the test box; and the salt fog generator is arranged in the test box, is arranged below the insulator to be tested and is used for carrying out salt fog spraying on the insulator to be tested so as to simulate the salt fog state of the insulator to be tested.
Further, the above-mentioned device for simulating environment corrodes insulator, salt fog generator includes: the device comprises a gas conveying mechanism, a salt water conveying mechanism, a mixing mechanism and a salt spray spraying device; the gas conveying mechanism and the saline water conveying mechanism are respectively communicated with two ends of the mixing mechanism, and the mixing mechanism is used for receiving and mixing the gas conveyed by the gas conveying mechanism and the saline water conveyed by the saline water conveying mechanism; the direction of the salt spray spraying device is adjustably communicated with the mixing mechanism so as to spray the gas-liquid mixture in the mixing mechanism to all directions of the insulator to be tested.
Further, above-mentioned a device for simulating environment corrodes insulator, salt fog spray set includes: universal adjusting joints and spray heads; one end of the universal adjusting joint is communicated with the mixing mechanism, the other end of the universal adjusting joint is communicated with the spray head, and the spray head adjusts the spraying direction of liquid through the universal adjusting joint.
Further, the above-mentioned device for simulating environment corrodes insulator, artificial rainfall simulation mechanism includes: the connecting mechanism, the tubular supporting mechanism and the rainwater spraying device; the tubular supporting mechanism is fixed in the test box through the connecting mechanism, and is provided with an inlet for introducing liquid into the tubular supporting mechanism; the direction of the rainwater spraying device is adjustably communicated with the tubular supporting mechanism so as to spray the liquid in the tubular supporting mechanism to all directions of the insulator to be tested.
Further, the above-mentioned device for simulating environment to insulator corrode, tubular supporting mechanism includes: the annular pipe is connected with the connecting mechanism and is provided with a plurality of outlets; the supporting rods are arranged in a crossed mode and connected to the inner ring of the annular pipe; the number of the rainwater spraying devices is equal to that of the outlets, and each rainwater spraying device is communicated with each outlet in a one-to-one correspondence mode.
Further, the above-mentioned device for simulating environment to insulator corrode, the connection mechanism includes: a liquid inlet pipe and a connecting rod; the connecting rods are connected with the tubular supporting mechanism so as to fix the tubular supporting mechanism in the test box; the liquid inlet pipe is communicated with the inlet so as to introduce liquid into the tubular supporting mechanism.
Further, according to the device for simulating the corrosion of the environment to the insulator, the insulator to be tested is suspended into the test box through the insulator mounting platform.
Further, above-mentioned a device for simulating environment corrodes insulator, insulator mounting platform includes: the device comprises a fixing mechanism, an isolation protection mechanism, an annular bracket and a rigid leg; the annular support is provided with a plurality of hanging parts along the circumferential direction, and grooves are formed in the radial direction of the annular support; one end of the rigid pin is clamped in the groove and is connected with the groove in a sliding manner, and the rigid pin is used for connecting an insulator to be tested so as to hang the insulator to be tested on the annular bracket; the annular support is fixed in the test box of the test box through the fixing mechanism; the isolation protection mechanism is arranged between the fixing mechanism and the annular support and used for isolating the insulator to be tested from equipment connected with the fixing mechanism.
Further, according to the device for simulating the corrosion of the environment on the insulator, the suspension member is provided with a positioning member in the groove, and the positioning member is used for positioning the rigid leg to ensure the levelness of the annular bracket.
Further, according to the device for simulating the corrosion of the environment to the insulator, the isolation protection mechanism is detachably connected with the annular support through the double-head screw rod.
Further, according to the device for simulating the corrosion of the environment on the insulator, a compression pump is arranged on one side or inside the test box, is connected with the salt mist generator, and is used for conveying gas with a first preset pressure to a gas conveying mechanism of the salt mist generator.
Further, according to the device for simulating the corrosion of the environment to the insulator, a variable frequency pump is arranged on one side or inside the test box; the variable frequency pump is connected with the artificial rainfall simulation mechanism and is used for conveying liquid with a second preset pressure to the artificial rainfall simulation mechanism; and/or the variable frequency pump is connected with the salt spray generator and is used for delivering the salt water with the third preset pressure to the salt water delivery mechanism.
Further, the device for simulating the corrosion of the environment on the insulator, a controller, which is respectively connected with the illumination mechanism, the artificial rainfall simulation mechanism, the temperature and humidity adjustment mechanism and the salt fog generator, is used for controlling the opening time of the mechanism connected with the controller, so that the illumination mechanism, the artificial rainfall simulation mechanism, the temperature and humidity adjustment mechanism and the salt fog generator are simultaneously opened or alternately opened; the controller is also used for adjusting the light intensity of the illumination mechanism, adjusting the spraying water quantity, the spraying water pressure and/or the spraying direction of the artificial rainfall simulation mechanism, adjusting the temperature and humidity change curve of the adjustment of the temperature and humidity adjustment mechanism, and adjusting the spraying salt mist concentration, the spraying salt mist pressure, the spraying salt mist quantity and/or the spraying direction of the salt mist generator.
According to the device for simulating the corrosion of the insulator by the environment, the illumination mechanism, the artificial rainfall simulation mechanism, the temperature and humidity regulation mechanism and the salt mist generator are used for carrying out environment simulation in the natural environment on the insulator to be tested, namely simulation of illumination, rain, temperature, humidity and salt mist states, so that the test result is closer to the actual condition in the natural environment, the aging and corrosion conditions of the insulator in the severe environment for a long time can be more accurately analyzed, more accurate data can be counted, the guarantee is provided for the long-term reliable operation of the insulator, the rusting and falling of steel feet and steel caps caused by the aging of the insulator and other factors are reduced, and the flashover accident of the insulator is avoided.
Particularly, the simulation test is carried out on the insulator to be tested in the test box, so that a sealed test environment is provided for the insulator to be tested, the test result is prevented from being low in accuracy and precision due to the fact that the test environment changes in the measurement process of the insulator to be tested, and the simulation test result is further improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic structural diagram of an apparatus for simulating corrosion of an insulator by an environment according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a test chamber in a closed state according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a mechanism for simulating artificial rainfall according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a salt spray generator according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an insulator mounting platform according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, the device for simulating corrosion of an insulator by an environment according to an embodiment of the present invention is provided. As shown, it includes: the device comprises a test box 1, an illumination mechanism 2, a rainfall simulation mechanism 3, a temperature and humidity adjusting mechanism 4, a salt mist generator 5 and a controller 6; wherein, the insulator 7 that awaits measuring is hung in proof box 1 to carry out corrosive environment's simulation to it, and then make the actual conditions under the test result more is close natural environment, thereby can more accurately assay the insulator be in ageing, the corrosion conditions of adverse circumstances for a long time and draw more accurate data statistics, provide the assurance for the long-term reliable operation of insulator, reduced because the harm that factors such as insulator ageing brought. Preferably, the insulator 7 to be tested is suspended in the test box 1 through the insulator mounting platform 8, so that the insulator 7 to be tested is suspended in the test box 1, the suspension state of the insulator is simulated, and the insulator is tested through spraying and the like, and the detection level and precision of related products in the insulator industry are improved. Further preferably, the insulator mounting platform 8 is fixedly connected to the top wall of the test box 1, so that the insulator 7 to be tested is suspended in the test box 1, and further the simulation of the corrosion environment is performed on the insulator 7 to be tested through the illumination mechanism 2, the artificial rainfall simulation mechanism 3, the temperature and humidity adjustment mechanism 4 and the salt fog generator 5. The insulator mounting platform 8 is fixed at the middle position of the top wall of the test box 1, so that interference of the illumination mechanism 2, the artificial rainfall simulation mechanism 3, the temperature and humidity adjusting mechanism 4, the salt mist generator 5 and the test box 1 is avoided.
With reference to fig. 1, the illumination mechanism 2 is disposed in the test chamber 1, and is configured to simulate an illumination environment for the insulator 7 to be tested suspended in the test chamber 1. The illumination mechanism 2 is a visible light illumination system or a non-visible light illumination system, and this embodiment does not limit the present invention at all; preferably, the illumination mechanism 2 is an LED lamp with adjustable light intensity to simulate sunlight; further preferably, the LED lamp is an LED lamp tube arranged along the axis of the insulator mounting platform 8, so as to more accurately perform illumination simulation on the insulator 7 to be tested suspended by the insulator mounting platform 8, ensure the simulation accuracy of the corrosion environment of the insulator, and further ensure the analysis accuracy of the aging and corrosion conditions of the insulator.
Continuing to refer to fig. 1, the artificial rainfall simulation mechanism 3 is arranged in the test box 1 and above the insulator 7 to be tested, and is used for performing liquid spraying on the insulator 7 to be tested so as to simulate the rain state of the insulator, ensure the simulation accuracy of the corrosion environment of the insulator, and further ensure the analysis accuracy of the aging and corrosion conditions of the insulator. Preferably, the artificial rainfall simulation mechanism 3 is arranged above the insulator 7 to be tested, and sprays liquid in all directions of the insulator to be tested by adjusting the spraying direction of the artificial rainfall simulation mechanism, so that the insulator to be tested is uniformly sprayed, the actual rain state of the insulator to be tested is simulated, the test result is closer to the actual condition under the natural environment, the aging and corrosion conditions of the insulator in the severe environment for a long time can be more accurately analyzed, more accurate data statistics can be obtained, the guarantee is provided for the long-term reliable operation of the insulator, and the harm caused by the aging and other factors of the insulator is reduced. Further preferably, the artificial rainfall simulation mechanism 3 is coaxially arranged with the insulator mounting platform 8. The sprayed liquid can be water or rainwater, and the components of all substances in the rainwater can be determined according to actual conditions.
With reference to fig. 1, the temperature and humidity adjusting mechanism 4 is disposed in the test chamber 1 and is configured to adjust the temperature and humidity in the test chamber 1, so as to control the temperature and humidity in the test chamber 1 to be constant within a predetermined temperature and a predetermined humidity, and further avoid the low measurement accuracy of the volume resistivity of the insulator 7 to be measured due to the change of the environmental temperature and humidity. Preferably, the temperature and humidity adjusting mechanism 4 may be disposed on an inner sidewall of the test chamber 1. The temperature and humidity adjusting mechanism 4 can be a temperature and humidity controller which measures and controls temperature and humidity signals and realizes liquid crystal digital display, and can also set and display the upper limit and the lower limit of the temperature and the humidity respectively through a key, so that the instrument can automatically start a fan or a heater according to the field condition and automatically adjust the actual temperature and the actual humidity of the measured environment; the temperature and humidity adjusting mechanism 4 is provided with a display interface and a switch, and the display interface is used for setting and displaying the temperature and the humidity of the sealed test environment in the test box 1 so as to adjust the preset temperature and the preset humidity; the switch is connected with the temperature and humidity adjusting mechanism 4 and the display interface to control the start and stop of the temperature and humidity adjusting mechanism 4 and the display interface; preferably, the display interface and the switch are provided on the outer surface of the box body 11 or the split door 12 of the test chamber 1.
Continuing to refer to fig. 1, the salt fog generator 5 is arranged in the test box 1 and below the insulator 7 to be tested, and is used for spraying salt fog to the insulator 7 to be tested so as to simulate the salt fog state of the insulator 7 to be tested and simulate the influence of the salt fog on the insulator in the natural environment, so that the test result is closer to the actual condition in the natural environment, the aging and corrosion conditions of the insulator in the severe environment for a long time can be more accurately analyzed, more accurate data can be counted, the guarantee is provided for the long-term reliable operation of the insulator, and the harm caused by the aging and other factors of the insulator is reduced. In order to further improve the reality of the simulation environment, preferably, the salt mist generator 5 is coaxially arranged with the insulator mounting platform 8, so that the salt mist can be uniformly sprayed in all directions of the insulator 7 to be tested.
With reference to fig. 1, the test chamber 1 is provided with a plurality of wall-penetrating sleeves 9 for guiding wires for supplying power to the illumination mechanism 2, the rainfall simulation mechanism 3, the temperature and humidity adjustment mechanism 4 and/or the salt mist generator 5 into the test chamber 1, and also guiding the wires for supplying spraying liquid to the rainfall simulation mechanism 3 or the salt mist generator 5. Preferably, two wall bushings 9 are provided, which are arranged side by side on the left side wall of the test chamber 1.
With continued reference to fig. 1, the controller 6 is connected to the illumination mechanism 2, the artificial rainfall simulation mechanism 3, the temperature and humidity adjustment mechanism 4, and the salt mist generator 5, and is configured to control the opening times of the illumination mechanism 2, the artificial rainfall simulation mechanism 3, the temperature and humidity adjustment mechanism 4, and the salt mist generator 5, so as to simultaneously open or cross-open the illumination mechanism 2, the artificial rainfall simulation mechanism 3, the temperature and humidity adjustment mechanism 4, and the salt mist generator 5, so as to control the working times and cross-opening of illumination, rain, temperature, humidity, and salt mist, so as to accurately simulate the influence of a complicated severe environment on the suspension insulator, accurately reflect the corrosion situation of the suspension insulator in a real natural environment, further provide a guarantee for the long-term reliable operation of the insulator, and reduce the damage caused by the aging of the insulator and other factors. Of course, the controller 6 may also be connected to one or any combination of the illumination mechanism 2, the artificial rainfall simulation mechanism 3, the temperature and humidity adjustment mechanism 4, and the salt fog generator 5. Preferably, the controller 6 is provided to the right side wall of the test chamber 1 so as to avoid interference of the respective members on the test chamber 1. The controller 6 is also used for adjusting the light intensity of the illumination mechanism 2, adjusting the spraying water quantity, the spraying water pressure and/or the spraying direction of the artificial rainfall simulation mechanism 3, adjusting the temperature and humidity change curve of the temperature and humidity adjusting mechanism 4 for adjusting the test box 1, adjusting the spraying salt mist concentration, the spraying salt mist pressure, the spraying salt mist quantity and/or the spraying direction of the salt mist generator 5, and further controlling the simulation degree of the device on the real natural environment of the insulator, so that the corrosion condition of the suspended insulator under the real natural environment is further accurately reflected.
With continued reference to fig. 1 and to fig. 2, the rear side (relative to the position shown in fig. 1) of test chamber 1 is provided with an equipment mounting box 10, which is formed integrally with test chamber 1 or is fixed by welding. A compressor pump (not shown) is arranged in the equipment installation box 10, and is connected with the salt mist generator 5 and used for delivering gas with a first preset pressure to the salt mist generator 5. In this embodiment, the compression pump is disposed in the equipment installation box 10 as an example, but it is needless to say that the compression pump may be disposed outside the equipment installation box 10, for example, in the test box 1 or on one side of the test box 1. Preferably, a compression pump is connected to the input end of the gas pipe 512 of the gas delivery mechanism 51 in the salt spray generator 5, and gas with a first preset pressure can be delivered into the gas pipe 512 by the compression pump. The first preset pressure can be confirmed according to actual conditions, and the embodiment does not limit the first preset pressure in any way. A variable frequency pump (not shown in the figure) can be arranged in the equipment installation box 10; the variable frequency pump is connected with the artificial rainfall simulation mechanism 3 and is used for delivering liquid with a second preset pressure to the artificial rainfall simulation mechanism 3; and/or the variable frequency pump is connected with the salt spray generator 5 and is used for delivering the salt water with the third preset pressure to the salt spray generator 5. Preferably, two variable frequency pumps are provided, which respectively deliver the liquid with the second preset pressure to the artificial rainfall simulation mechanism 3, the salt water with the third preset pressure delivered by the salt spray generator 5, or one liquid with the second preset pressure delivered to the artificial rainfall simulation mechanism 3 and the salt water with the third preset pressure delivered by the salt spray generator 5 at different times. The variable frequency pump can be connected with the artificial rainfall simulation mechanism 3 and/or the salt fog generator 5 through a connecting water pipe.
With continuing reference to figure 1 and with reference to figure 2, test cell 1 comprises: a box body 11 and a split door 12; the split door 12 includes two doors rotatably connected to the box 11, and certainly, the door provided on the box 11 may be one door for selectively sealing and closing the box 11 of the test box, so as to open the split door 12 when installing, replacing or detaching the insulator 7 to be tested. The side-by-side door 12 may be provided with a front observation window 121 for observing the measurement process in the case 11; a side wall, for example, the left side wall, of the case 11 is provided with a side observation window 111 for observing the measurement and adjustment process in the case 11; the front observation window 121 and the side observation window 111 are hollow heating glass, so that the atomization of the front observation window 121 and the side observation window 111 is prevented from influencing the observation effect, and a good visual effect is achieved in a low-temperature environment. Door lock handles 122 are also provided on the side-by-side doors 12 to facilitate opening and closing of the side-by-side doors 12. Preferably, the box body 11 and the split doors 12 in the test chamber 1 are made of stainless steel material, such as SUS316L stainless steel material, in order to improve the corrosion resistance thereof and to prevent them from being damaged during the corrosion simulation. Of course, a stainless steel layer may be provided on the inner wall of the test chamber 1. In order to improve the heat preservation performance of the test box, the outer wall of the test box 1 is provided with a heat preservation layer which can be realized by a polyurethane heat preservation plate.
Referring to fig. 3, the rainfall simulation mechanism 3 includes: a connecting mechanism 31, a tubular supporting mechanism 32 and a rainwater spray device 33. Wherein, coupling mechanism 31 is connected with tubulose supporting mechanism 32, and tubulose supporting mechanism 32 accessible coupling mechanism 31 is fixed in the proof box 1, during concrete implementation, coupling mechanism 31 can be fixed in the roof or install at the top of environmental test case via the double-end screw, and tubulose supporting mechanism 32 hangs by coupling mechanism 31 and locates in the air to simulate the actual state of drenching with the rain of the insulator that awaits measuring. The tubular support mechanism 32 is provided with an inlet through which the spray liquid is introduced into the tubular support mechanism 32. The direction of the rainwater spraying device 33 is adjustably communicated with the tubular supporting mechanism 32, liquid in the tubular supporting mechanism 32 is sprayed to the insulator to be tested through the rainwater spraying device 33, and all directions of the insulator to be tested can be sprayed by adjusting the direction of the rainwater spraying device 33, so that all the insulators to be tested are covered and uniformly sprayed.
Continuing to refer to fig. 3, tubular supporting mechanism 32 is fixed in the preset position through coupling mechanism 31, rainwater spray set 33 direction is adjustably linked with tubular supporting mechanism 32, through adjusting rainwater spray set 33's direction, can spray to each direction of the insulator that awaits measuring, thereby realize the even spraying to the insulator that awaits measuring, the actual state of drenching with rain of the insulator that awaits measuring has been simulated, thereby make the test result more approximate the actual conditions under the natural environment, and then can more accurately analyze the insulator and be in the ageing of adverse circumstances for a long time, the corrosion conditions and draw more accurate data statistics, provide the assurance for the long-term reliable operation of insulator, reduced because the harm that factors such as insulator ageing brought.
With continued reference to fig. 3, the rain spray device 33 may include: a direction adjustment mechanism 331 and a rain nozzle 332. The direction adjusting mechanism 331 is communicated with the tubular supporting mechanism 32, the rainwater spray head 332 is communicated with the direction adjusting mechanism 331, and the direction adjusting mechanism 331 adjusts the direction of the rainwater spray head 332 through rotation of the direction adjusting mechanism 331, so that the spraying direction of the liquid is adjusted. The direction adjustment mechanism 331 may include: a base 3311 and a gimbaled adjustment joint 3312. Wherein, the base 3311 is communicated with the tubular supporting mechanism 32, a first end (upper end shown in fig. 1) of the universal adjusting joint 3312 is communicated with the tubular supporting mechanism 32 through the base 3311, a second end (lower end shown in fig. 1) of the universal adjusting joint 3312 is communicated with the rain water spray head 332, and the rain water spray head 332 realizes the spray in different directions through the universal adjusting joint 3312. During concrete implementation, rainwater spray set 33 can be a plurality of, and each rainwater spray set 33 sets up in the different positions of tubulose supporting mechanism 32 to can spray the insulator that awaits measuring from a plurality of different directions, simultaneously, carry out the regulation of direction through universal regulation joint 321 to the rainwater shower nozzle 332 rather than corresponding, can realize spraying of more angles, more directions. The controller 6 is connected to the direction adjustment mechanism 331, and the universal adjustment joint 3312 can be controlled by the controller 6 to adjust the direction of the corresponding rain nozzle 332.
With continued reference to fig. 3, the tubular support mechanism 32 may include: the annular pipe 321 and the annular pipe 321 are kept in a horizontal state, the annular pipe 321 is connected with the connecting mechanism 31, a plurality of outlets are uniformly arranged on the annular pipe 321, the number of the rainwater spraying devices 33 is also multiple, the number of the rainwater spraying devices 33 is equal to that of the outlets, and each outlet is respectively communicated with the base 3311 of one rainwater spraying device 33, so that the insulators to be tested are uniformly sprayed in multiple directions. In particular, the ring pipe may be a seamless steel pipe made of SUS316L stainless steel. The tubular support mechanism 32 may further include: at least two support rods 322, each support rod 322 being crossed to form a cross shape, and both ends of each support rod 322 being connected to the inner circumference of the annular pipe 321 to prevent the annular pipe 321 from being deformed. The center of the artificial rainfall simulation device for the insulator is positioned on the central line of the annular pipe, so that the deflection of the artificial rainfall simulation device is avoided, and the spraying effect is ensured.
With continued reference to fig. 3, the connection mechanism 31 may include: a liquid inlet pipe 311 and a connecting rod 312. One end of the connecting rod 312 is connected to the annular tube 321 of the tubular support mechanism 32, and the other end of the connecting rod 312 is connected to a predetermined position. One end of the liquid inlet pipe 311 is communicated with an inlet arranged on the annular pipe 321, so that the spraying liquid is introduced into the annular pipe 321 of the tubular supporting mechanism 32. During the concrete implementation, feed liquor pipe 311 and connecting rod 312 all can be a plurality ofly, when the import is a plurality of, all communicates one feed liquor pipe 311 on every import. The other end of the liquid inlet pipe 311 is communicated with the outlet of the variable frequency pump, the inlet of the variable frequency pump is connected with the controller 6, and the frequency of the variable frequency pump can be controlled by the controller 6, so that the pressure of the liquid introduced into the annular pipe 321 is controlled, and the liquid spraying amount and the spraying water pressure are adjusted.
Referring to fig. 4, the salt spray generator 5 includes: a gas delivery mechanism 51, a brine delivery mechanism 52, a mixing mechanism 53 and a salt spray spraying device 54. Wherein, a gas delivery mechanism 51 for delivering high-pressure compressed gas and a brine delivery mechanism 52 for delivering brine with a certain pressure are respectively communicated with both ends of the mixing mechanism 53, thereby delivering the gas and the brine to the mixing mechanism 53. The mixing mechanism 53 receives and mixes the gas and the brine to form a gas-liquid mixture. The direction of the salt spray spraying device 54 is adjustably communicated with the mixing mechanism 53, and the direction of the salt spray spraying device 54 can be adjusted according to requirements, so that the gas-liquid mixture in the mixing mechanism 53 is uniformly sprayed to all directions of the insulator to be tested in a salt spray mode.
With continued reference to fig. 4, the mixing mechanism 53 is in communication with the gas delivery mechanism 51, the brine delivery mechanism 52, and the salt spray device 54, respectively, and receives and uniformly mixes the gas and the brine. The salt spray spraying device 54 is in adjustable communication with the mixing mechanism 53, so that the spraying direction can be adjusted as required. That is to say, on the one hand, the concentration of the salt fog becomes even through the even mixing of gas and salt water by the mixing mechanism 53, on the other hand, the spraying direction of the salt fog spraying device 54 is adjusted to make the salt fog spray evenly in all directions of the insulator to be tested, so that double guarantee is provided for the even spraying of the salt fog, the influence of the salt fog on the insulator in the natural environment is simulated, the test result is closer to the actual situation in the natural environment, the aging and corrosion situations of the insulator in the severe environment for a long time can be more accurately analyzed, more accurate data can be counted, guarantee is provided for the long-term reliable operation of the insulator, and the harm caused by the aging and other factors of the insulator is reduced.
With continued reference to fig. 4, the salt spray device 54 may include: universal adjusting joint (not shown in the figure) and salt fog spray nozzle 541. One end of the universal adjusting joint is communicated with the mixing mechanism 53, the other end of the universal adjusting joint is communicated with the salt spray nozzle 541, and the direction of the salt spray nozzle 541 can be changed by changing the direction of the universal adjusting joint, so that the change of the spraying direction is realized.
With continued reference to fig. 4, the mixing mechanism 53 may include: a housing 531, a first connection pipe 532, and a second connection pipe 533. Wherein, the shell 531 is provided with a first inlet, a second inlet and an outlet. Both ends of the first connection pipe 532 are respectively communicated with the first inlet and the gas delivery mechanism 51, and both ends of the second connection pipe 533 are respectively communicated with the second inlet and the brine delivery mechanism 52. One end of a universal steering joint of the salt spray device 54 is communicated with the outlet, or the universal steering joint is positioned in the shell 531, the universal steering joint is connected with the shell 531, one end of the universal steering joint is communicated with the inner space of the frame body 31, the salt spray nozzle 541 is positioned at the outlet, and one end of the salt spray nozzle 541 is communicated with the other end of the universal steering joint. In specific implementation, the first connection pipe 532 and the second connection pipe 533 may be bent pipes, so that the housing 531 may be supported between the annular air pipe 511 and the annular brine pipe 521; both the annular gas tube 511 and the annular brine tube 521 can be seamless steel tubes supported by stainless steel.
With continued reference to fig. 4, the gas delivery mechanism 51 may include: the annular air pipe 511 and the air pipe 512, the wall surface of the annular air pipe 511 is provided with an air inlet and an air outlet, the air outlet is communicated with the first end of the mixing mechanism 53, namely the air outlet is communicated with one end of the first connecting pipe 532, and the air inlet is communicated with the output end of the air pipe 512, so that air can be introduced into the annular air pipe 511.
With continued reference to fig. 4, the saline delivery mechanism 52 may include: an annular saline tube 521 and an infusion tube 522. Wherein, annular brine pipe 521 and annular trachea 511 arrange with one heart, and inlet and liquid outlet have been seted up to annular brine pipe 521's wall, and the liquid outlet is linked together with the second end of mixing mechanism 53, and the liquid outlet is linked together with the one end of second connecting pipe 533 promptly, and the inlet is linked together with the output of transfer line 522 to can carry salt solution in annular brine pipe 521.
The number of the mixing mechanisms 53 may be multiple, the number of the air outlets on the annular air pipe 511 and the number of the liquid outlets on the annular brine pipe 521 are equal to the number of the mixing mechanisms 53, the first connecting pipes 532 of the mixing mechanisms 53 are communicated with the air outlets in a one-to-one correspondence manner, and the second connecting pipes 533 of the mixing devices are communicated with the liquid outlets in a one-to-one correspondence manner. Each mixing mechanism 53 is evenly arranged along the circumference of the annular air pipe 511 and/or the annular brine pipe 521, so that a plurality of insulators to be tested can be sprayed from a plurality of different directions, and meanwhile, the directions of the salt spray nozzles 541 corresponding to the mixing mechanisms are adjusted through universal adjusting joints, so that more angles and more directions of more insulators to be tested can be sprayed.
The input end of the gas pipe 512 of the gas conveying mechanism 51 is connected with a compression pump, and gas with a first preset pressure can be conveyed into the gas pipe 512 through the compression pump. An input end of the infusion tube 522 of the saline conveying mechanism 52 is connected with an inverter pump, and saline with a second preset pressure can be input into the infusion tube 522 through the inverter pump. The compression pump and the variable frequency pump are connected with the controller 6, the frequency of the compression pump and the frequency of the variable frequency pump can be adjusted according to actual needs through the controller 6, so that the pressure of gas introduced into the mixing mechanism 53 and the pressure of salt water are adjusted, and the salt spray spraying amount is adjusted. Meanwhile, the controller 6 is also connected with a universal adjusting joint of the salt mist spraying device 54, so that the direction of the universal adjusting joint is adjusted, the spraying direction of the salt mist is controlled, and the uniform spraying of the insulator to be tested is ensured by controlling the spraying amount and the spraying direction of the salt mist simultaneously.
Referring to fig. 5, the insulator mounting platform 8 includes: a fixing mechanism 81, an isolation protection mechanism 82, a ring-shaped bracket 83, a rigid foot 84 and a hanging piece 85; the annular support 83 is provided with a plurality of rigid legs 84 along the circumferential direction thereof for connecting the insulator to be tested, so as to hang the insulator to be tested (not shown) on the annular support 83. Preferably, the rigid legs 84 are uniformly arranged along the circumferential direction of the ring-shaped support 83, so as to ensure that the insulators to be tested are uniformly arranged along the circumferential direction of the ring-shaped support 83, and further ensure that the levelness of the ring-shaped support 83 is ensured, that is, the ring-shaped support 83 is horizontally arranged, so as to avoid the inclination and the like of the test process of the insulators to be tested, that is, accurately simulate the suspension state of the insulators to be tested, and ensure the accuracy of the test. Specifically, the ring-shaped support 83 is provided with a plurality of hanging pieces 85 along its circumference, and preferably, the hanging pieces 85 are welded to a sidewall of the ring-shaped support 83. The suspension member 85 is provided with a groove 851 along the radial direction of the annular holder 83. One end (top end shown in fig. 1) of the rigid pin 84 is provided with a support rod which is clamped in a groove 851 and can slide along the groove 851, the other end (bottom end shown in fig. 1) is provided with an insulator connecting piece for connecting and suspending an insulator to be tested, and an iron cap of the insulator to be tested, namely a low-voltage end thereof, is suspended on the insulator connecting piece; preferably, the groove (851)851 is a closed groove body to prevent the rigid leg 84 from falling. The suspension parts 85, the rigid feet 84 and the insulators to be tested are arranged in a one-to-one correspondence manner, and preferably, the insulator connecting pieces of the rigid feet 84 arranged on the suspension parts 85 are different in size so as to connect and suspend the insulators to be tested with different sizes; the rigid foot 84 can slide along the length direction of the groove (851), namely the radial direction of the annular bracket 83, so as to adjust the positions of the hanging piece 85 and the insulator to be tested according to the sizes of the hanging piece 85 and the insulator to be tested; preferably, the suspension member 85 is provided with a positioning member (not shown in the figure) in the groove (851)851 for positioning the rigid leg 84 to ensure the levelness of the annular bracket 83, and the positioning member can lock the suspension member 85 and the rigid leg 84 after the rigid leg 84 slides to a corresponding position to avoid the movement of the rigid leg 84, so as to ensure that the center of gravity of the insulator mounting platform on which the insulator to be tested is suspended is located on the central axis of the annular bracket 83, that is, ensure the levelness of the annular bracket 83, that is, ensure the annular bracket 83 is horizontally arranged, thereby avoiding the inclination of the insulator to be tested in the testing process, that is, accurately simulating the suspension state of the insulator to be tested, and ensuring the testing accuracy; preferably, the positioning element is arranged at the end of the annular support 83 in the form of a groove (851) 851. In the present embodiment, in order to prevent the ring holder 83 from being corroded or damaged in the simulation test, it is preferable that the ring holder 83 be formed by bending a stainless steel plate so as to ensure the strength and corrosion resistance of the ring holder 83. The rigid leg 84 can be replaced according to different types of insulators and materials to be tested. In this embodiment, the number of the suspending members 85 and the rigid legs 84 provided on the ring-shaped support 83 is 8, but may be 1 or other numbers; in order to improve the efficiency of testing the insulator to be tested, it is preferable that at least two hanging members 85 and at least two rigid legs 84 are provided on the ring-shaped support 83 and are uniformly distributed along the circumference of the ring-shaped support 83.
With continued reference to fig. 5, the ring support 83 is fixed to a preset position by the fixing mechanism 81 so as to suspend the insulator to be tested to the preset position in the testing equipment, and then test it by spraying or the like. Preferably, the fixing mechanism 81 can be fixed on a roof or mounted on the top of the testing equipment via a double-headed screw, and the ring-shaped bracket 83 is hung in the air or in the box of the testing equipment by the fixing mechanism 81 to simulate the hanging state of the insulator to be tested for testing.
With continued reference to fig. 5, the isolation protection mechanism 82 is disposed between the fixing mechanism 81 and the annular bracket 83, and is configured to isolate the device connected to the fixing mechanism 81 from the insulator to be tested, so as to prevent the insulator to be tested from generating corona or surface discharge, and simultaneously isolate the device from being damaged by high-voltage flashover, that is, to prevent potential safety hazards caused by electric leakage or damage to the testing device, so as to improve safety performance of the insulator to be tested in the suspension and simulation testing processes. Preferably, the isolation protection mechanism 82 is removably attached to the ring bracket 83 by a double-headed lead screw 86 to facilitate installation between the isolation protection mechanism 82 and the ring bracket 83, i.e., the ring bracket 83 is removably attached by the double-headed lead screw 86. Wherein the top end (relative to the position shown in fig. 1) of the double-headed screw 86 is connected with the isolation protection mechanism 82, and the bottom end (relative to the position shown in fig. 1) of the double-headed screw 86 is detachably connected with the ring bracket 83; it is further preferred that the top end of the double-ended lead screw 86 is detachably connected with the isolation protection mechanism 82 so as to facilitate the assembly and disassembly of the two. Wherein, the isolation protection mechanism 82 is an isolation insulator, the top end of which is connected with the fixing mechanism 81, and the bottom end of which is detachably connected with the double-head screw 86.
With continued reference to fig. 5, the securing mechanism 81 includes: a plurality of connecting rods 811; the connecting rods 811 are arranged above the annular support 83 and evenly arranged along the circumferential direction of the annular support 83, and are used for suspending insulators to be tested on the annular support 83. Specifically, one end (lower end as shown in fig. 1) of the connecting rod 12 is connected to the ring bracket 83, and the other end (upper end as shown in fig. 1) of the connecting rod 12 is connected to a predetermined position. The preset position can be determined according to the equipment for the simulation test of the insulator to be tested or the suspension position of the equipment. Preferably, the end (upper end as shown in fig. 1) of the connecting rod is provided with an internal thread to be fixed to a preset position by a double-headed screw, so that the insulator mounting platform can be conveniently disassembled and assembled; each connecting rod 811 is fixed to the ring bracket 83 by an isolation guard mechanism 82 and a double-headed lead screw 86. To ensure the stability of the ring bracket 83, it is preferable that the connecting rods 811 are at least two; in the present embodiment, 6 connecting rods 811 are taken as an example, but it is needless to say that other numbers may be used according to actual confirmation.
With continued reference to fig. 5, the connecting rods 811 are disposed in one-to-one correspondence with the rigid legs 84, and the corresponding connecting rods 811 and the rigid legs 84 are disposed at the same connection point of the annular bracket 83; wherein the connecting rod 12 is fixed to the top wall of the ring-shaped bracket 83 by an isolation protection mechanism 82 and a double-headed screw 86, and the corresponding rigid leg 84 is fixed to the side wall of the ring-shaped bracket 83 by a hanger 85.
The controller 6 includes a processing unit 61 and a storage unit 62; the processing unit 61 is connected with the illumination mechanism 2, the artificial rainfall simulation mechanism 3, the temperature and humidity adjusting mechanism 4 and the salt mist generator 5, and is used for adjusting the temperature and humidity change curve of the temperature and humidity adjusting mechanism 4 to be adjusted in the test box 1 according to the pre-designed light intensity of the illumination mechanism 2, the spraying water volume, the spraying water pressure and/or the spraying direction of the artificial rainfall simulation mechanism 3, the spraying salt mist concentration, the spraying salt mist pressure, the spraying salt mist volume and/or the spraying direction of the salt mist generator 5, so that the illumination mechanism 2, the artificial rainfall simulation mechanism 3, the temperature and humidity adjusting mechanism 4 and the salt mist generator 5 can work according to the pre-design; the processing unit 61 comprises a central processing unit CPU, a digital signal processor, an application specific integrated circuit ASIC or a field programmable gate array FPGA. The storage unit 62 includes: one or more of a read only memory ROM, a random access memory RAM, a flash memory or an electrically erasable programmable read only memory EEPROM, all connected to the processing unit 61, are used to obtain the adjustment result value of the environmental simulation and store the corrosion simulation environment of the insulator 6 to be tested.
Referring to fig. 1 to 5, the operation of the apparatus for simulating the corrosion of an insulator by an environment provided in the present embodiment will now be described in detail:
firstly, opening a split door 12, hanging a plurality of insulators 7 to be tested on an insulator mounting platform 8, and closing the split door 12; then, the light intensity of the illumination mechanism 2 is adjusted through a controller 6, the spraying water quantity, the spraying water pressure and/or the spraying direction of the artificial rainfall simulation mechanism 3 are simulated, the temperature and humidity change curve of the temperature and humidity adjusting mechanism 4 for adjusting the temperature and the humidity in the test box 1, the spraying salt fog concentration, the spraying salt fog pressure, the spraying salt fog quantity and/or the spraying direction of the salt fog generator 5 are controlled, and meanwhile, the illumination, the rain, the temperature, the humidity and the working time and the cross opening of the salt fog are controlled; and finally, performing corrosion simulation on the insulator 7 to be tested through the illumination mechanism 2, the artificial rainfall simulation mechanism 3, the temperature and humidity adjusting mechanism 4 and the salt fog generator 5, and opening the side-by-side door 12 after the simulation is finished.
To sum up, the device that is used for simulation environment to corrode insulator that this embodiment provided, through illumination mechanism 2, simulation rainfall mechanism 3, temperature and humidity adjustment mechanism 4, salt fog generator 5 carries out environmental simulation including illumination among the natural environment to the insulator 7 that awaits measuring promptly, drench rain, temperature, humidity, the simulation of salt fog state, thereby make the actual conditions under the test result is close natural environment more, and then can be more accurate the analysis insulator be in adverse circumstances's ageing for a long time, the corrosion conditions and statistics of more accurate data, provide the assurance for the long-term reliable operation of insulator, the steel foot that has reduced because factors such as insulator ageing bring, the steel emits rust and drops, thereby avoid the insulator flashover accident to appear.
Particularly, the simulation test is performed on the insulator 6 to be tested in the test box 1, so as to provide a sealed test environment for the insulator 6 to be tested, so as to avoid the test environment change in the measurement process of the insulator 6 to be tested from causing low accuracy and precision of the test result, and further improve the simulation test result.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (13)
1. An apparatus for simulating environmental corrosion of an insulator, comprising:
a test chamber (1);
the illumination mechanism (2) is arranged in the test box (1) and is used for simulating an illumination environment of the insulator to be tested (7) suspended in the test box (1);
the artificial rainfall simulation mechanism (3) is arranged in the test box (1), is arranged above the insulator to be tested (7), and is used for spraying liquid on the insulator to be tested (7) so as to simulate the rain state of the insulator to be tested (7);
the temperature and humidity adjusting mechanism (4) is arranged in the test box (1) and is used for adjusting the temperature and humidity in the test box (1);
and the salt fog generator (5) is arranged in the test box (1), is arranged below the insulator (7) to be tested, and is used for carrying out salt fog spraying on the insulator (7) to be tested so as to simulate the salt fog state of the insulator (7) to be tested.
2. The device for simulating corrosion of an insulator by an environment according to claim 1, wherein the salt fog generator (5) comprises: the device comprises a gas conveying mechanism (51), a saline water conveying mechanism (52), a mixing mechanism (53) and a salt spray spraying device (54); wherein,
the gas conveying mechanism (51) and the saline water conveying mechanism (52) are respectively communicated with two ends of the mixing mechanism (53), and the mixing mechanism (53) is used for receiving and mixing the gas conveyed by the gas conveying mechanism (51) and the saline water conveyed by the saline water conveying mechanism (52);
the direction of the salt spray spraying device (54) is adjustably communicated with the mixing mechanism (53) so as to spray the gas-liquid mixture in the mixing mechanism (53) to all directions of the insulator (7) to be tested.
3. The device for simulating corrosion of an insulator by an environment according to claim 2, wherein the salt spray spraying device (54) comprises: a universal adjusting joint and a salt spray nozzle (541); wherein,
one end of the universal adjusting joint is communicated with the mixing mechanism (53), the other end of the universal adjusting joint is communicated with the salt spray nozzle (541), and the salt spray nozzle (541) adjusts the spraying direction of liquid through the universal adjusting joint.
4. The device for simulating corrosion of an insulator by an environment according to any one of claims 1 to 3, wherein the artificial rainfall simulation mechanism (3) comprises: a connecting mechanism (31), a tubular supporting mechanism (32) and a rainwater spraying device (33); wherein,
the tubular supporting mechanism (32) is fixed in the test box (1) through the connecting mechanism (31), and an inlet for introducing liquid into the tubular supporting mechanism (32) is formed in the tubular supporting mechanism (32);
the direction of the rainwater spraying device (33) is adjustably communicated with the tubular supporting mechanism (32) so as to spray liquid in the tubular supporting mechanism (32) to all directions of the insulator (7) to be tested.
5. Device for simulating environmental corrosion of insulators according to claim 4, characterized in that said tubular supporting means (32) comprise:
an annular tube (321) connected to the connection mechanism (31), and the annular tube (321) is provided with a plurality of outlets;
at least two support rods (322), wherein each support rod (322) is arranged in a crossed manner and connected to the inner ring of the annular pipe (321);
the number of the rainwater spraying devices (33) is equal to that of the outlets, and each rainwater spraying device (33) is communicated with each outlet in a one-to-one correspondence manner.
6. Device for simulating corrosion of an insulator by an environment according to claim 4, characterized in that said connection means (31) comprise: a liquid inlet pipe (311) and a connecting rod (312); wherein,
the connecting rods (312) are connected with the tubular supporting mechanism (32) so as to fix the tubular supporting mechanism (32) in the test box (1);
the liquid inlet pipe (311) is communicated with the inlet so as to introduce liquid into the tubular supporting mechanism (32).
7. The device for simulating environment corrosion on an insulator according to any one of claims 1 to 3,
the insulator (7) to be tested is suspended in the test box (1) through an insulator mounting platform (8).
8. The device for simulating environment corrosion of an insulator according to claim 7, wherein the insulator mounting platform (8) comprises: the device comprises a fixing mechanism (81), an isolation protection mechanism (82), an annular bracket (83) and a rigid foot (84); wherein,
a plurality of hanging pieces (85) are arranged on the annular support (83) along the circumferential direction of the annular support, and grooves (851) are formed in the annular support (83) along the radial direction of the annular support;
one end of the rigid pin (84) is clamped in the groove (851) and is connected with the groove (851) in a sliding manner, and the rigid pin is used for connecting an insulator (7) to be tested so as to suspend the insulator (7) to be tested on the annular bracket (83);
the ring-shaped support (83) is fixed inside the test chamber (1) of the test chamber (1) by the fixing mechanism (81);
the isolation protection mechanism (82) is arranged between the fixing mechanism (81) and the annular support (83) and used for isolating the insulator (7) to be tested from equipment connected with the fixing mechanism (81).
9. The apparatus for simulating environment corrosion on an insulator according to claim 8,
the hanging piece (85) is provided with a positioning piece in the groove (851) for positioning the rigid foot (84) so as to ensure the levelness of the annular bracket (83).
10. The apparatus for simulating environment corrosion on an insulator according to claim 8,
the isolation protection mechanism (82) is detachably connected with the annular support (83) through a double-head screw rod (86).
11. The device for simulating environment corrosion on an insulator according to any one of claims 1 to 3,
and a compression pump is arranged on one side or inside the test box (1), is connected with the salt fog generator (5) and is used for conveying gas with a first preset pressure to a gas conveying mechanism (51) of the salt fog generator (5).
12. The device for simulating environment corrosion on an insulator according to any one of claims 1 to 3,
a variable frequency pump is arranged on one side or inside the test box (1);
the variable frequency pump is connected with the artificial rainfall simulation mechanism (3) and is used for delivering liquid with a second preset pressure to the artificial rainfall simulation mechanism (3); and/or the presence of a gas in the gas,
the variable frequency pump is connected with the salt spray generator (5) and is used for conveying the salt water with third preset pressure to the salt water conveying mechanism (52).
13. The apparatus for simulating environment corrosion on an insulator according to any one of claims 1 to 3, further comprising:
the controller (6) is respectively connected with the illumination mechanism (2), the artificial rainfall simulation mechanism (3), the temperature and humidity adjusting mechanism (4) and the salt fog generator (5) and is used for controlling the opening time of the mechanisms connected with the controller so as to enable the illumination mechanism (2), the artificial rainfall simulation mechanism (3), the temperature and humidity adjusting mechanism (4) and the salt fog generator (5) to be opened simultaneously or alternately;
the controller (6) is also used for adjusting the light intensity of the illumination mechanism (2), adjusting the spraying water quantity, the spraying water pressure and/or the spraying direction of the artificial rainfall simulation mechanism (3), adjusting the temperature and humidity change curve of the adjustment of the temperature and humidity adjustment mechanism (4), and adjusting the spraying salt mist concentration, the spraying salt mist pressure, the spraying salt mist quantity and/or the spraying direction of the salt mist generator (5).
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| CN110146437B (en) * | 2019-06-19 | 2024-03-08 | 重庆大学 | Multi-element environment factor coupling-based metal corrosion simulation monitoring device for power equipment |
| CN110146437A (en) * | 2019-06-19 | 2019-08-20 | 重庆大学 | Monitoring device is simulated in power equipment metal erosion based on the coupling of polynary environmental factor |
| CN111799697A (en) * | 2020-07-08 | 2020-10-20 | 云南电网有限责任公司电力科学研究院 | Self-explosion simulation method and system for glass insulator of power transmission line |
| CN111781310A (en) * | 2020-07-21 | 2020-10-16 | 清华大学合肥公共安全研究院 | Environment adaptability detection system for gas concentration monitoring equipment |
| CN112098311A (en) * | 2020-09-12 | 2020-12-18 | 无锡华坤检测技术服务有限公司 | Test chamber and test method |
| CN112414928A (en) * | 2020-11-09 | 2021-02-26 | 广东电网有限责任公司 | Insulator salt spray corrosion test device |
| CN112379233A (en) * | 2020-11-16 | 2021-02-19 | 国家电网有限公司 | Composite insulator brittle fracture simulation test method and simulation test system thereof |
| CN112525811A (en) * | 2020-11-30 | 2021-03-19 | 广东电网有限责任公司 | Insulator salt spray corrosion test device for high-voltage transformer |
| CN112630133A (en) * | 2020-12-18 | 2021-04-09 | 南昌航空大学 | Hoop corrosion resistance testing arrangement |
| CN112525812A (en) * | 2020-12-19 | 2021-03-19 | 西安优耐特容器制造有限公司 | Device and method for testing corrosion performance of material selected by seawater desalination equipment |
| CN112525812B (en) * | 2020-12-19 | 2023-04-07 | 西安优耐特容器制造有限公司 | Device and method for testing corrosion performance of material selected by seawater desalination equipment |
| CN112649705A (en) * | 2020-12-21 | 2021-04-13 | 中国电力科学研究院有限公司 | Automatic disc insulator replacing device for steep wave test |
| CN114397240A (en) * | 2022-01-21 | 2022-04-26 | 广西大学 | Acid-rain-corrosion-normal-temperature drying multi-physical-field intelligent regulation test device and method |
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