CN212676605U - Multichannel discharging device for accelerating electrical aging of insulating silicon oil - Google Patents
Multichannel discharging device for accelerating electrical aging of insulating silicon oil Download PDFInfo
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- CN212676605U CN212676605U CN202022172015.XU CN202022172015U CN212676605U CN 212676605 U CN212676605 U CN 212676605U CN 202022172015 U CN202022172015 U CN 202022172015U CN 212676605 U CN212676605 U CN 212676605U
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- 230000032683 aging Effects 0.000 title claims abstract description 32
- 238000007599 discharging Methods 0.000 title claims description 13
- 239000003921 oil Substances 0.000 title abstract description 33
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title abstract description 8
- 229910052710 silicon Inorganic materials 0.000 title abstract description 8
- 239000010703 silicon Substances 0.000 title abstract description 8
- 239000011521 glass Substances 0.000 claims abstract description 14
- 229920002545 silicone oil Polymers 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 2
- 239000012212 insulator Substances 0.000 claims 3
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 229910001369 Brass Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to a multichannel electric aging device that discharges that can be used to insulating silicon oil is ageing with higher speed, the device includes upper cover plate, lower apron, hold-down flange, needle electrode, board electrode, jar body, insulating cover, connecting rod and needle mounting panel, and external power source is through being connected with the connecting rod and introducing the utility model discloses required voltage to needle electrode, ground electrode link to each other with the board electrode, needle electrode, board electrode setting are internal at the glass jar, jar internal portion places insulating silicon oil, fixes into an organic whole with the jar body with the apron through the stay bolt, and whole device can hold insulating silicon oil volume great, the utility model discloses upper cover plate department has the oil-extracting hole to irritate oil and get oily operation, and lower apron department installs the extension tube, gets oily operation through this pipeline. The needle mounting plate is provided with 13 needles, and the connecting rod moves up and down by rotating the high-pressure guide rod positioning sleeve, so that the gap of the needle plate is controlled. The utility model discloses a many needles electrode structure can shorten the electrical ageing required time greatly under lower voltage level.
Description
Technical Field
The utility model belongs to insulating medium electrical ageing field belongs to an accelerated multi-channel discharging device that insulating silicon oil electrical ageing very much.
Background
Along with the gradual transformation of the urban power transmission line into the underground cable, the safe operation of the cable and the cable accessories becomes the basic guarantee of the safety of the whole power system, compared with a high-voltage cable body, the cable terminal and the joint belong to relatively weak links, and the probability of the cable accessories breaking down is about 70% as shown by the probability of the power transmission line failures in the past. Therefore, the cable termination is a key connecting device, and the operation of the cable termination directly affects the safe operation of the cable line.
The high-voltage cable terminal is used as an essential accessory for connecting other electric equipment when a high-voltage cable is laid, and can be divided into a plurality of types according to the structure and the application, such as a porcelain bushing terminal, a composite bushing terminal, an outdoor terminal, an indoor terminal and the like. Therefore, the quality of the insulating property of the dielectric oil filled in the terminal plays a very critical role in the overall safe operation of the terminal.
However, in the process of operating the cable, the filled insulating oil in the cable terminal is gradually aged due to the external factors such as humidity, high temperature, strong electric field and impurities, and the aging degree of the insulating oil is gradually increased along with the increase of the operating time of the cable terminal, so that the insulating property of the terminal is greatly reduced, and serious accidents such as insulation breakdown and equipment burnout can be caused in serious cases. After the installation of the cable terminal is finished, the terminal can be subjected to sealing treatment, the insulating oil filled in the terminal cannot be correspondingly detected during the operation period, and after the insulating oil is aged, the cable terminal is easily heated or even subjected to insulation breakdown, so that the aging characteristic of the terminal insulating oil needs to be researched and analyzed, the aging rule of the terminal insulating oil is mastered, and the safe operation of a power system is ensured.
However, in the electrical aging process, a long electrical aging time is often needed under a common single-pin electrode model, the voltage level needs to be increased in order to save the time required by the experiment, and more serious personal safety hazards exist for testers under a high voltage level.
Disclosure of Invention
Based on this, the utility model aims at providing a through introducing multichannel discharge device, then can shorten the electrical ageing required time under lower voltage level, and experiment under lower voltage level, experimenter's personal safety can more obtain the ageing multichannel of insulating silicon oil with higher speed ageing device of assurance to overcome prior art's not enough.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is:
a multi-channel discharge device for accelerating electrical aging of insulating silicon oil,
the device comprises: the device comprises an upper cover plate, a lower cover plate, a tank body, a needle electrode, a plate electrode, an insulating sleeve, a connecting rod and a needle mounting plate; the device is divided into an upper cover plate, a tank body and a lower cover plate from top to bottom; the upper cover plate, the tank body and the lower cover plate are fixed into a whole, so that a closed space is formed in the tank body, the needle electrode and the plate electrode are arranged in the tank body, the needle electrode is arranged on a needle mounting plate, the connecting rod can penetrate through the upper cover plate in a vertically movable mode, the needle mounting plate is arranged at the lower end of the connecting rod extending into the tank body, and the needle electrode, the needle mounting plate and the connecting rod form a conductive path; the insulating sleeve is arranged between the connecting rod and the upper cover plate; the plate electrode is arranged in the tank body and is positioned below the needle electrode, and the plate electrode is connected with a ground electrode outside the tank body.
The tank body is a glass tank body, a compression flange is further arranged on the upper cover plate, a screw hole is formed in the lower cover plate, a through hole is formed in the position, corresponding to the compression flange, of the upper cover plate, where the screw hole is formed, of the lower cover plate, the upper cover plate and the compression flange are fixed into a whole through long bolts, and sealing rings are arranged at the connecting positions of the upper cover plate, the lower cover plate and the glass tank body.
The connecting rod is a threaded rod, the connecting rod is fixedly connected with the upper cover plate through a high-pressure locking nut, a high-pressure guide rod positioning sleeve is arranged above the high-pressure locking nut, and the high-pressure guide rod positioning sleeve and the high-pressure locking nut are both sleeved on the connecting rod.
The upper cover plate is provided with an oil taking hole, and the pressing flange is provided with an oil taking hole sealing plate corresponding to the oil taking hole of the upper cover plate.
An extension pipe is arranged at the bottom of the lower cover plate, and two ends of the extension pipe are respectively arranged inside and outside the glass tank body.
The plate electrode is arranged on the lower cover plate through a supporting structure, and the plate electrode is connected with the ground electrode outside the tank body through a metal rod or a cable to form a conductive path.
The connecting rod can move up and down by rotating the high-pressure guide rod positioning sleeve.
The needle mounting plate is provided with a plurality of needle electrodes which are uniformly distributed on the needle mounting plate.
The arrangement is provided with a plurality of 13 needle electrodes on the needle mounting plate.
The number of the long bolts is 8. Owing to adopted above-mentioned design, the utility model discloses following advantage has:
(1) the utility model discloses can utilize the helicitic texture of upper cover plate and connecting rod, can conveniently adjust to required size with the clearance between needle electrode and the board electrode.
(2) The utility model discloses utilize many needle structures, can produce the discharge channel of multichannel, can shorten the electrical ageing test required time greatly under lower voltage level.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a top view of FIG. 1;
in the figure: 1-glass tank body, 2-upper cover plate, 3-lower cover plate, 4-upper compression flange, 5-plate electrode, 6-long bolt (model CB10-170), 7-foot cup, 8-nut 9-high-voltage electrode, 10-insulating sleeve, 11-ground electrode, 12-extension tube, 13, pipe joint (model SJSXL6A), 14, ball valve (model BBPH61), 15, through joint, 16, ball valve joint (model 1/8PT), 17, needle electrode, 18, high-voltage rod locking nut (model STB 20), 19, needle mounting plate, 20, connecting rod, 21, high-voltage guide rod positioning sleeve (model NT20), 22-oil hole sealing plate;
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Embodiment, a multi-channel discharge aging apparatus for accelerating aging of insulating silicone oil is shown in fig. 1 and 2; a multichannel discharging aging device for accelerating aging of insulating silicone oil comprises an upper cover plate, a lower cover plate, a pressing flange, a pin electrode, a plate electrode, an insulating sleeve, a connecting rod, a pin mounting plate and the like. As shown in fig. 1 and 2, the device comprises: 1. the high-voltage guide rod type high-voltage switch comprises a glass tank body, 2, an upper cover plate, 3, a lower cover plate, 4, a compression flange, 5, a plate electrode, 6, a long bolt (model CB10-170), 9, a high-voltage electrode, 10, an insulating sleeve, 11, a ground electrode, 12, an extension pipe, 13, a pipe joint (model SJSXL6A), 14, a ball valve, 15, a through joint, 16, a ball valve joint (specification 1/8PT), 17, a needle electrode, 18, a high-voltage guide rod locking nut (model STHRB20), 19, a needle mounting plate, 20, a connecting rod, 21 and a high-voltage guide rod positioning sleeve (NT 20);
the whole device is divided into an upper pressing flange 4, an upper cover plate 2, a glass tank body 1 and a lower cover plate 3 from top to bottom, the cover plate and the glass tank body are fixed into a whole through 8 long bolts, the effect of no oil leakage is achieved, and the upper cover plate 2 is made of insulating materials.
Specifically, eight screw holes are formed in the lower cover plate 3, through holes are formed in the positions, corresponding to the upper cover plate 2 and the upper compression flange 4, of the upper cover plate 2, and eight CB10-170 long bolts 6 are used for connecting the lower cover plate 3, the upper cover plate 2 and the upper compression flange 4 together
Further, an oil taking hole is formed in the upper cover plate, oil filling and oil taking operations can be performed through the oil taking hole, and an oil taking hole sealing plate 22 is configured on the oil taking hole. The diameter of getting the oilhole is 82mm, and extension pipe 12 is installed to lower apron department, gets oil operation through extension pipe 12.
Further, the extension pipe is connected with the straight-through joint 15, the other end of the straight-through joint 15 is connected with the ball valve joint 16, the other end of the ball valve joint is connected with the ball valve 14, the other end of the ball valve 14 is connected with the pipe joint 13, through the connection, conversion and matching, the design of an oil taking pipeline below the lower cover plate is completed, and the oil taking operation is controlled through the ball valve; it should be noted that the oil extraction hole of the upper cover plate can also realize the oil extraction operation.
Furthermore, sealing rings are added at the joints of the upper cover plate, the lower cover plate and the glass tank body, so that the device has certain air tightness.
Further, there are bearing structure and plate electrode 5 in lower apron 3 department, the plate electrode links to each other with ground electrode, plate electrode 5 diameter is 190mm, and the plate electrode material is brass, fixes on lower apron 3.
Further, a foot cup 7 is arranged below the lower cover plate to support the whole device, a nut 8 is arranged on the foot cup 7, and the height of the foot cup 7 can be adjusted by rotating the nut.
Specifically, the total height of the whole device is 322.5mm, the diameters of the upper cover plate and the lower cover plate are 399mm, the volume of the insulating silicone oil can be 6L, the size is large, and sufficient oil quantity can be obtained at different time nodes in one test.
In the previous embodiment, the inside of the device tank is provided with a needle plate electrode structure, the needle electrodes 17, the connecting rods 20 and the needle mounting plates 19 form a passage, and 13 needle electrodes are uniformly mounted on the needle mounting plates.
Specifically, the needle electrode material is brass material, and the length of each needle electrode is 80 mm;
further, the upper cover plate 2 is connected with the connecting rod 20 in a threaded structure, and the connecting rod 20 can be moved up and down by rotating the high-voltage guide rod positioning sleeve 21, so that the gap distance between the needle electrode 17 and the plate electrode 5 is controlled.
Further, the connecting rod 20 is fixedly connected with the upper cover plate 2 through a high-pressure locking nut 18, and the high-pressure guide rod positioning sleeve 21 is positioned above the high-pressure locking nut 18. The high-pressure guide rod positioning sleeve 21 and the high-pressure locking nut 18 are sleeved on the connecting rod 20. When the compression flange 4 is arranged above the upper cover plate, the connecting rod 20 is fixedly connected with the compression flange 4 through the high-pressure locking nut 18, and then the connection with the upper cover plate 2 is realized.
In addition, the glass tube body 1 in the foregoing embodiment may also be a can body made of other materials, as long as it can form a sealed space with the upper cover plate and the lower cover plate for accommodating insulating silicone oil.
Further, an external power supply can introduce a voltage required for electrical aging to the needle electrode by being connected with the connecting rod 20, and in order to prevent generation of creepage, an insulating sleeve 10 is installed at the joint of the connecting rod 20 and the upper cover plate 2, thereby eliminating the creepage phenomenon existing between the connecting rod 20 and the upper compression flange 4.
The above-mentioned embodiments only express one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A multi-channel discharge apparatus for accelerating electrical aging of silicon-on-insulator oil, the apparatus comprising: the device comprises an upper cover plate, a lower cover plate, a tank body, a needle electrode, a plate electrode, an insulating sleeve, a connecting rod and a needle mounting plate; the device is divided into an upper cover plate, a tank body and a lower cover plate from top to bottom; the upper cover plate, the tank body and the lower cover plate are fixed into a whole, so that a closed space is formed in the tank body, the needle electrode and the plate electrode are arranged in the tank body, the needle electrode is arranged on a needle mounting plate, the connecting rod can penetrate through the upper cover plate in a vertically movable mode, the needle mounting plate is arranged at the lower end of the connecting rod extending into the tank body, and the needle electrode, the needle mounting plate and the connecting rod form a conductive path; the insulating sleeve is arranged between the connecting rod and the upper cover plate; the plate electrode is arranged in the tank body and is positioned below the needle electrode, and the plate electrode is connected with a ground electrode outside the tank body.
2. The multi-channel discharging device for accelerating electrical aging of insulating silicone oil according to claim 1, wherein the tank is a glass tank, the upper cover plate is further provided with a pressing flange, the lower cover plate is provided with a screw hole, the upper cover plate and the pressing flange are provided with a through hole corresponding to the screw hole on the lower cover plate, the glass tank, the upper cover plate and the pressing flange are fixed into a whole by using a long bolt, and a sealing ring is arranged at the joint of the upper cover plate, the lower cover plate and the glass tank.
3. The multi-channel discharging device for accelerating electrical aging of insulating silicone oil according to claim 1, wherein the connecting rod is a threaded rod, the connecting rod is fixedly connected with the upper cover plate through a high-voltage locking nut, a high-voltage guide rod positioning sleeve is positioned above the high-voltage locking nut, and the high-voltage guide rod positioning sleeve and the high-voltage locking nut are sleeved on the connecting rod.
4. The multi-channel discharging device for accelerating electrical aging of insulating silicone oil according to claim 2, wherein the upper cover plate is provided with an oil taking hole, and the pressing flange is provided with an oil taking hole sealing plate corresponding to the oil taking hole of the upper cover plate.
5. The multi-channel discharging device for accelerating electrical aging of insulating silicone oil according to claim 2, wherein an extension tube is installed at the bottom of the lower cover plate, and two ends of the extension tube are respectively arranged inside and outside the glass tank body.
6. The multi-channel discharging device for accelerating electrical aging of insulating silicone oil according to claim 1, wherein the plate electrode is disposed on the lower cover plate through a supporting structure, and the plate electrode is connected with the ground electrode outside the tank body through a metal rod or a cable to form a conductive path.
7. A multi-channel discharging apparatus for accelerating electrical aging of silicone oil as recited in claim 3, wherein said connecting rod can be moved up and down by rotating said high voltage guide rod positioning sleeve.
8. The multi-channel discharging device for accelerating electrical aging of silicone oil insulator of claim 1, wherein a plurality of needle electrodes are disposed on the needle mounting plate, and the plurality of needle electrodes are uniformly distributed on the needle mounting plate.
9. The multi-channel discharging device for accelerating electrical aging of silicone oil insulator of claim 8, wherein a plurality of 13 needle electrodes are provided on the needle mounting plate.
10. The multi-channel discharging device for accelerating electrical aging of insulating silicone oil according to claim 2, wherein the number of the long bolts is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022172015.XU CN212676605U (en) | 2020-09-28 | 2020-09-28 | Multichannel discharging device for accelerating electrical aging of insulating silicon oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022172015.XU CN212676605U (en) | 2020-09-28 | 2020-09-28 | Multichannel discharging device for accelerating electrical aging of insulating silicon oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212676605U true CN212676605U (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022172015.XU Active CN212676605U (en) | 2020-09-28 | 2020-09-28 | Multichannel discharging device for accelerating electrical aging of insulating silicon oil |
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| Country | Link |
|---|---|
| CN (1) | CN212676605U (en) |
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- 2020-09-28 CN CN202022172015.XU patent/CN212676605U/en active Active
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