CN204855715U - Electric treeing real-time observation device in polymer that can rise temperature - Google Patents
Electric treeing real-time observation device in polymer that can rise temperature Download PDFInfo
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- CN204855715U CN204855715U CN201520334511.7U CN201520334511U CN204855715U CN 204855715 U CN204855715 U CN 204855715U CN 201520334511 U CN201520334511 U CN 201520334511U CN 204855715 U CN204855715 U CN 204855715U
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- 229920000642 polymer Polymers 0.000 title claims abstract description 17
- 239000011810 insulating material Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000002474 experimental method Methods 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims description 19
- 238000006757 chemical reactions by type Methods 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 10
- 238000011161 development Methods 0.000 claims description 10
- 238000004452 microanalysis Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000012774 insulation material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000011534 incubation Methods 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 14
- 230000018109 developmental process Effects 0.000 description 9
- 230000032683 aging Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000555268 Dendroides Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
A temperature-raising polymer medium-electric treeing real-time observation device relates to the field of polymer insulation detection. The utility model discloses the device is including experimental transformer, the voltage regulator, and the electrode is initiated to the electric branch, and the ground electrode, high temperature resistant transparent insulating oil, the resistant oily transparent experiment cabin of temperature resistant, heating apparatus, temperature sensor, the accurate temperature controller of reaction formula, the heat preservation device, air cooling device, area source, long burnt magnifying lens, digital micro-camera machine, XYZ linear guide, the computer that has image acquisition and processing function etc.. Utilize the utility model discloses the device can realize the real-time observation of electric branch in polymer and its complex under the room temperature ~180 ℃ condition to and functions such as electric branch image acquisition, storage and basic data's analysis. The utility model discloses device itself has higher withstand voltage and temperature resistant level, and voltage and temperature control are accurate, can be applied to and survey electric treeing phenomenon in the different temperature resistant grade polymer insulating material.
Description
Technical field
The utility model relates to for electrical treeing phenomenon real-time observation device in polymkeric substance under different temperatures and compound thereof, belongs to polymer insulation detection field.
Background technology
In recent years, UHV (ultra-high voltage) and UHV transmission technology show obvious advantage and application prospect at remote conveying electrical domain, meanwhile have higher requirement to the performance of insulating material.At high voltage electric power equip ment as in cable, along with improving constantly of electric pressure and capacity, electrical tree aging process becomes the major reason causing insulation failure.
Electrical treeing is a kind of partial breakdown phenomenon caused due to the effect of electric field in insulating material of polymer, gain the name because partial breakdown passage presents similar dendroid, its existence will cause insulating material deterioration even to be lost efficacy, it is the voltage ageing phenomenon of a kind of serious threat high-voltage electrical equipment, the security of operation such as switching device and insulating sleeve.In insulating material of polymer, the research history of electrical tree aging process phenomenon has had more than 40 year, and along with deepening continuously of research, people not only pay close attention to the Characteristics of Development of electrical treeing phenomenon, and more pay close attention to Crack cause and the motive force of development of electrical treeing.Electrical treeing observation device conventional at present mainly adopts digital camera acquisition system, the growth characteristics image of electric branch dynamic development process and data under record room temperature condition, in order to the relation of the Characteristics of Development and material aggregated structure of inquiring into electrical treeing phenomenon in polymer insulation.
The working temperature of insulating material of polymer is often a lot of higher than room temperature, and the change of temperature can affect the motion of macromolecular chain segment in polymkeric substance, and then affects its resistance to electrical treeing characteristic.The development of electrical treeing phenomenon in polymer insulation, not only has the impetus of electric field, and the effect of thermal field also can affect its Characteristics of Development.Therefore, test under the working temperature of insulating material of polymer, can the resistance to electrical treeing performance of better reactive polymeric thing material, for theoretical research and engineer applied provide foundation.
Summary of the invention
The purpose of this utility model is the experimental provision weak point for electrical treeing phenomenon in current polymkeric substance, provides a kind of electrical treeing experiment real-time observation device with intensification, temperature controlling function.This device has the stress condition of the simulating polymer insulating material insulation ag(e)ing such as thermal field and electric field in the course of the work, to reach the resistance to electrical tree aging process performance of more real insulating material.Real-Time Monitoring under uniform temperature condition in electric branch experimentation and image acquisition and analysis, can provide experimental data for probing into electrical treeing development mechanism in polymkeric substance and compound insulation thereof.
Described in the utility model be a kind of have intensification and temperature controlling function polymkeric substance in electrical treeing real-time observation device, comprise experimental transformer, pressure regulator, electric branch causes electrode, ground electrode, Laboratory Module, heating apparatus, temperature sensor, temperature controller, attemperator, area source, focal length enlarging lens, digital micro-analysis video camera, XYZ line slideway, computing machine etc.
Laboratory Module adopts oil resistant, material that is high temperature resistant, the high grade of transparency to make, and comprises rectangle Laboratory Module and for be incubated and fixing electric branch causes the upper cover with holes of electrode and temperature sensor.Be fixed with grounded plate electrode bottom Laboratory Module, in Laboratory Module, inject high temperature resistant, high transparency insulating oil.Experimental sample needle point one end and electric branch cause electrode and are connected, and plate electrode one end is connected with ground electrode, and experimental sample entirety is positioned at the insulating oil of Laboratory Module.
Heating arrangement is placed in the outside of Laboratory Module, realizes homogeneous heating in the bottom of Laboratory Module and both sides, front and back.Temperature sensor adopts high heat conduction, heatproof, the encapsulation of oil resistant material, is arranged in the Laboratory Module insulating oil at distance experimental sample 5mm to 50mm place.Temperature sensor error is less than 0.01 DEG C, and the input end as temperature controller realizes Real-time Collection and the feedback of experimental temperature.The accurate temperature controller of reaction type can show experimental temperature and the design temperature of experimental sample in real time, and have and add gentle heat insulation function, temperature control scope is room temperature to 250 DEG C, can realize the electrical treeing experiment condition of room temperature to 180 DEG C.
Attemperator adopts resistant to elevated temperatures insulation material, is positioned at the left and right sides outside Laboratory Module, and the relative position of both sides insulation material contains the Real-time Collection of observation port for experimental sample electric branch image.The temperature that attemperator reduces in Laboratory Module is scattered and disappeared, and significantly reduces the operating ambient temperature of light source and camera lens.Between observation port and area source, between light hole and focal length enlarging lens, be provided with air cooling equipment, but experimental temperature higher than 100 DEG C time, start air cooling equipment to guarantee the safe working temperature of area source and focal length enlarging lens.
Area source is positioned at Laboratory Module external heat preserving device both sides with the focal length enlarging lens being connected digital microscope camera, is positioned at same axial location with attemperator observation port and polymer experiments sample.The near infrared directional light that area source provides has larger penetrability, improves the overexposure phenomenon of camera lens.The operating distance of focal length enlarging lens is 65mm to 300mm, can meet the working environment of high pressure-temperature experiment, and have 1 to 50 times of enlargement factors, and 0.23 μm to the 7.9 μm observation depth of field and 0.96 μm of resolution, can realize the clear collection of electric branch image.Near infrared directional light enters focal length enlarging lens through attemperator observation port, Laboratory Module, insulating oil and experimental sample, the light signal that focal length enlarging lens is collected by Real time vision and collection, realizes the Real-Time Monitoring of the development to electric branch in polymkeric substance by digital micro-analysis video camera.For the electric branch image of fixing enlargement factor, can record the length of electric branch, width data, the electric branch image of output contains standard proportional chi, experimental period simultaneously, is convenient to analyze further the electrical treeing phenomenon in polymkeric substance and compound thereof.
The utility model device has following technique effect
Achieve room temperature to 180 DEG C within the scope of experimental temperature accurately control, under simulation different temperatures grade and running environment, the working temperature of polymkeric substance and compound insulating material thereof, realizes insulating material of polymer electrical treeing characteristic research in hot operation state.
Focal length enlarging lens coordinates digital camera and computing machine, realizes the Real-time Collection of electrical treeing image in polymkeric substance under different temperatures and composite materials thereof, the higher and fundamental analysis data such as length, width containing electric branch of the image resolution ratio of collection.
Experimental provision has larger dirigibility, can according to different experiments experiment Control release temperature, heating arrangement and attemperator is quick detachable and install, and conveniently replaces insulating oil and experimental provision improves.
Accompanying drawing explanation
Fig. 1 is electrical treeing real-time observation device structural representation in the polymkeric substance heated up described in the utility model;
Fig. 2 be described in the utility model have add gentle heat insulation function Laboratory Module intention;
In figure: 1 experimental transformer, 2 pressure regulators, 3 electric branch cause electrode, 4 Laboratory Module upper covers, 5 experimental samples, the accurate temperature controller of 6 reaction types, 7 temperature sensors, 8 area sources, 9 air cooling equipments, 10 Laboratory Modules, 11 ground electrodes, 12 heatproof insulating oils, 13 focal length enlarging lens, 14 digital micro-analysis video cameras, 15XYZ line slideway, 16 computing machines, 17 attemperators, 18 observation ports, 19 heating apparatuss.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is further described.
Embodiment one: described in present embodiment a kind of there is intensification function polymkeric substance and compound insulating material in the real-time observation device of electrical treeing phenomenon, comprise: experimental transformer (1), pressure regulator (2), electric branch causes electrode (3), Laboratory Module upper cover (4), experimental sample (5), the accurate temperature controller (6) of reaction type, temperature sensor (7), area source (8), air cooling equipment (9), Laboratory Module (10), ground electrode (11), heatproof insulating oil (12), focal length enlarging lens (13), digital micro-analysis video camera (14), XYZ line slideway (15), computing machine (16), attemperator (17), observation port (18), heating apparatus (19), Laboratory Module (10) top, with moveable Laboratory Module upper cover (4), is fixed with grounded plate electrode (9) bottom Laboratory Module, experimental sample (5) needle point one end and electric branch cause electrode (3) and are connected, and plate electrode one end is connected with ground electrode (9), heating arrangement (20) is placed in the outside of Laboratory Module, realizes homogeneous heating in the bottom of Laboratory Module and both sides, front and back, temperature sensor (7) is arranged in the insulating oil of experimental sample (5) certain distance, as the input end of the accurate temperature controller (6) of the accurate reaction type of reaction type, attemperator containing observation port (18) is positioned at Laboratory Module (10) left and right sides outward.Area source (8), focal length magnifier (11), digital micro-analysis video camera (14) is positioned at outside Laboratory Module, is positioned at same axial location with the observation port (18) of attemperator and polymer experiments sample (5).Embodiment two: present embodiment is described further embodiment one, Laboratory Module (10) adopts oil resistant, material that is high temperature resistant, the high grade of transparency is made, and can bear the temperature shock being greater than 700 DEG C; The upper circular hole causing electrode (3) and temperature sensor (7) containing fixing electric branch of Laboratory Module upper cover (4); Inject in Laboratory Module 2/3 capacity high temperature resistant, transparent insulation is oily, experimental sample (5) entirety is positioned at the insulating oil of Laboratory Module.
Embodiment three: present embodiment is described further embodiment one, heating arrangement (20) is placed in the outside of Laboratory Module, realizes homogeneous heating in the bottom of Laboratory Module and both sides, front and back; Temperature sensor (17) adopts high heat conduction, heatproof, the encapsulation of oil resistant material, and be arranged in the insulating oil (17) of the same degree of depth with experimental sample (5), distance experimental sample (5) is 5mm to 20mm; Temperature sensor error is less than 0.01 DEG C, and the input end as the accurate temperature controller (6) of reaction type realizes Real-time Collection and the feedback of experimental temperature; Accurate temperature control (15) device of reaction type can show experimental temperature and design temperature in real time, and have and add gentle temperature incubation function, temperature control scope is room temperature to 250 DEG C, can realize the electrical treeing experiment condition of room temperature to 180 DEG C.
Embodiment four: present embodiment is described further embodiment one, attemperator (17) adopts resistant to elevated temperatures insulation material to make, be positioned at the left and right sides outside Laboratory Module, the relative position of both sides insulation material contains the Real-time Collection of observation port (18) for experimental sample (5) electric branch image; Attemperator (17) the effectively temperature reduced in Laboratory Module scatters and disappears, and reduces the operating ambient temperature of light source and camera lens; Air cooling equipment (9) is provided with between observation port (18) and area source (8), between observation port (18) and focal length enlarging lens (13), when experimental temperature is greater than 100 DEG C, start air cooling equipment (9) to guarantee the safe working temperature of area source and focal length enlarging lens.
Embodiment five: present embodiment is described further embodiment one, area source (8) provides near infrared directional light, can improve the overexposure phenomenon of camera lens; The operating distance of focal length enlarging lens (13) is 65mm to 300mm, the working environment of experiment can be met, and there are 1 to 50 times of enlargement factors, 0.23 μm to the 7.9 μm observation depth of field and the resolution of 0.96 μm, can realize the clear collection of electric branch image; The light signal that focal length enlarging lens (13) is collected by computing machine (16) display in real time and collection, realizes the Real-Time Monitoring of the development to electrical treeing in polymkeric substance by digital micro-analysis video camera (14); Fixing after regulating the enlargement factor of focal length enlarging lens (13), by regulating the sharpness of XYZ line slideway (15) adjustment image, the electric branch image containing standard proportional chi, experimental period parameter can be exported, and the length of electric branch can be recorded, width simultaneously.
Claims (5)
1. the real-time observation device of electrical treeing phenomenon in a polymkeric substance with intensification function and compound insulating material thereof, comprise: experimental transformer (1), pressure regulator (2), electric branch causes electrode (3), Laboratory Module upper cover (4), experimental sample (5), the accurate temperature controller (6) of reaction type, temperature sensor (7), area source (8), air cooling equipment (9), Laboratory Module (10), ground electrode (11), heatproof insulating oil (12), focal length enlarging lens (13), digital micro-analysis video camera (14), XYZ line slideway (15), computing machine (16), attemperator (17), observation port (18), heating apparatus (19), Laboratory Module (10) top is with moveable Laboratory Module upper cover (4), grounded plate electrode (9) is fixed with bottom Laboratory Module, experimental sample (5) needle point one end and electric branch cause electrode (3) and are connected, plate electrode one end is connected with ground electrode (9), heating arrangement (20) is placed in the outside of Laboratory Module, homogeneous heating is realized in the bottom of Laboratory Module and both sides, front and back, temperature sensor (7) is arranged in the insulating oil of experimental sample (5) certain distance, as the input end of the accurate temperature controller (6) of the accurate reaction type of reaction type, attemperator containing observation port (18) is positioned at Laboratory Module (10) left and right sides outward, area source (8), focal length magnifier (11), digital micro-analysis video camera (14) is positioned at outside Laboratory Module, same axial location is positioned at the observation port (18) of attemperator and polymer experiments sample (5).
2. according to claim 1 a kind of there is intensification function polymkeric substance and compound insulating material in the real-time observation device of electrical treeing phenomenon, it is characterized in that, Laboratory Module (10) adopts oil resistant, material that is high temperature resistant, the high grade of transparency is made, the temperature shock of 700 DEG C can be born, Laboratory Module upper cover (4) has fixing electric branch and causes electrode (3) and temperature sensor (7) and insulation effect, and in Laboratory Module, insulating oil has low conductance, low-loss, high temperature resistant, high transparency characteristic.
3. according to claim 1 a kind of there is intensification function polymkeric substance and compound insulating material in the real-time observation device of electrical treeing phenomenon, it is characterized in that, heating arrangement (20) is placed in the outside of Laboratory Module, homogeneous heating is realized in the bottom of Laboratory Module and both sides, front and back, temperature sensor (17) adopts high heat conduction, heatproof, oil resistant material encapsulates, be arranged in the insulating oil (17) of experimental sample (5) the same degree of depth, distance experimental sample (5) is 5mm to 20mm, temperature sensor error is less than 0.01 DEG C, input end as the accurate temperature controller (6) of reaction type realizes Real-time Collection and the feedback of experimental temperature, accurate temperature control (15) device of reaction type shows experimental temperature and design temperature in real time, have and add gentle temperature incubation function, temperature control scope is that room temperature is to 250 DEG C, room temperature can be realized to the electrical treeing experiment condition of 180 DEG C.
4. according to claim 1 a kind of there is intensification function polymkeric substance and compound insulating material in the real-time observation device of electrical treeing phenomenon, it is characterized in that, attemperator (17) adopts resistant to elevated temperatures insulation material to make, be positioned at the left and right sides outside Laboratory Module, the relative position of both sides insulation material contains the Real-time Collection of observation port (18) for experimental sample (5) electric branch image, between observation port (18) and area source (8), air cooling equipment (9) is provided with between observation port (18) and focal length enlarging lens (13), when experimental temperature is greater than 100 DEG C, air cooling equipment (9) can guarantee the safe working temperature scope of area source (8) and focal length enlarging lens (13).
5. according to claim 1 a kind of there is intensification function polymkeric substance and compound insulating material in the real-time observation device of electrical treeing phenomenon, it is characterized in that, area source (8) is near infrared parallel light source, the operating distance of focal length enlarging lens (13) is 65mm to 300mm, and there are 1 to 50 times of enlargement factors, the observation depth of field is the resolution of 0.23 μm to 7.9 μm and 0.96 μm, realize the clear collection of electric branch image, focal length enlarging lens (13), digital micro-analysis video camera (14) and computing machine (16) realize real-time display and the collection of electric branch image, realize the Real-Time Monitoring to the development of electrical treeing in polymkeric substance, fixing enlargement factor can be exported by regulating XYZ line slideway (15) and contain standard proportional chi, the image of experimental period parameter, record the length of electric branch simultaneously, width.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054037A (en) * | 2016-06-13 | 2016-10-26 | 哈尔滨理工大学 | Electric tree observation device with heating and partial discharge monitoring functions |
| CN106199358A (en) * | 2016-08-15 | 2016-12-07 | 哈尔滨理工大学 | A kind of electric branch image acquisition and method of synthesis in polymer |
| CN106199348A (en) * | 2016-06-21 | 2016-12-07 | 天津大学 | Electromagnetic field jointly act under low temperature polymer electric branch initiating method and device |
| CN106290366A (en) * | 2016-08-08 | 2017-01-04 | 哈尔滨理工大学 | A kind of real-time observation device causing experiment for electric branch |
| CN106353248A (en) * | 2016-11-11 | 2017-01-25 | 哈尔滨理工大学 | Apparatus for dynamically observing electrical corrosion of nano composite |
| CN106501277A (en) * | 2016-11-02 | 2017-03-15 | 华北电力大学（保定） | The alterating and direct current branch microscopic observation system of synchronzed press temperature-controllable and method |
| CN107271863A (en) * | 2017-06-19 | 2017-10-20 | 哈尔滨理工大学 | Insulating material of polymer electric branch monitoring system |
| CN108872815A (en) * | 2018-07-05 | 2018-11-23 | 天津大学 | Direct current cables insulating materials high temperature ageing based on Composite Field assesses device |
| CN109001599A (en) * | 2018-07-05 | 2018-12-14 | 天津大学 | Direct current cables insulating materials high temperature ageing degree assessment method based on Composite Field |
| CN111025104A (en) * | 2019-12-27 | 2020-04-17 | 哈尔滨理工大学 | Temperature-adjustable polymer electric tree growth observation system |
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2015
- 2015-05-22 CN CN201520334511.7U patent/CN204855715U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054037A (en) * | 2016-06-13 | 2016-10-26 | 哈尔滨理工大学 | Electric tree observation device with heating and partial discharge monitoring functions |
| CN106199348A (en) * | 2016-06-21 | 2016-12-07 | 天津大学 | Electromagnetic field jointly act under low temperature polymer electric branch initiating method and device |
| CN106290366A (en) * | 2016-08-08 | 2017-01-04 | 哈尔滨理工大学 | A kind of real-time observation device causing experiment for electric branch |
| CN106199358A (en) * | 2016-08-15 | 2016-12-07 | 哈尔滨理工大学 | A kind of electric branch image acquisition and method of synthesis in polymer |
| CN106501277A (en) * | 2016-11-02 | 2017-03-15 | 华北电力大学（保定） | The alterating and direct current branch microscopic observation system of synchronzed press temperature-controllable and method |
| CN106501277B (en) * | 2016-11-02 | 2018-10-26 | 华北电力大学（保定） | The alterating and direct current branch microscopic observation system and method for synchronzed press temperature-controllable |
| CN106353248A (en) * | 2016-11-11 | 2017-01-25 | 哈尔滨理工大学 | Apparatus for dynamically observing electrical corrosion of nano composite |
| CN107271863A (en) * | 2017-06-19 | 2017-10-20 | 哈尔滨理工大学 | Insulating material of polymer electric branch monitoring system |
| CN108872815A (en) * | 2018-07-05 | 2018-11-23 | 天津大学 | Direct current cables insulating materials high temperature ageing based on Composite Field assesses device |
| CN109001599A (en) * | 2018-07-05 | 2018-12-14 | 天津大学 | Direct current cables insulating materials high temperature ageing degree assessment method based on Composite Field |
| CN111025104A (en) * | 2019-12-27 | 2020-04-17 | 哈尔滨理工大学 | Temperature-adjustable polymer electric tree growth observation system |
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