CN104569760B - A kind of ultrasonic detection device for partial discharge for small size high voltage devices - Google Patents
A kind of ultrasonic detection device for partial discharge for small size high voltage devices Download PDFInfo
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- CN104569760B CN104569760B CN201410850246.8A CN201410850246A CN104569760B CN 104569760 B CN104569760 B CN 104569760B CN 201410850246 A CN201410850246 A CN 201410850246A CN 104569760 B CN104569760 B CN 104569760B
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- tank
- energy
- sealed shell
- high voltage
- small size
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- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 239000012212 insulator Substances 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 8
- 238000000605 extraction Methods 0.000 claims abstract description 5
- 239000011358 absorbing material Substances 0.000 claims description 10
- 239000008393 encapsulating agent Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 230000001186 cumulative effect Effects 0.000 claims description 4
- 229920001875 Ebonite Polymers 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The present invention proposes a kind of ultrasonic detection device for partial discharge for small size high voltage devices, including：Sealed shell of tank, energy-gathering device, ultrasonic sensor and insulator；The sealed shell of tank and the energy-gathering device are formed in one structure；The insulator is located at the top of the sealed shell of tank；Sealed shell of tank inner bottom part is provided with the test platform for placing detected element；The top air inlet pipeline of sealed shell of tank is provided with the intake valve for being filled with SF6 gases, and the bottom outlet pipe of sealed shell of tank is provided with extraction valve；Energy-gathering device is taper.Beneficial effects of the present invention are as follows：Set tapered by by energy-gathering device profile, be conducive to the polymerization of ultrasonic wave, can effectively assemble the ultrasonic wave of sealed shell of tank inside de minimis energy, and be avoided that scattering and disappearing for ultrasonic energy.
Description
Technical field
The present invention relates to gas insulated transformer substation malfunction monitoring technical field, particularly relate to a kind of for small size high voltage
The ultrasonic detection device for partial discharge of element.
Background technology
Shelf depreciation is the embodiment of insulation fault, is also to cause the main cause of insulation fault, detects the office of high-tension apparatus
Portion's discharge level is one of important means of assessment high voltage equipment insulation situation.
Small size high voltage device is small due to small volume, outlet terminal spacing, leads to not apply high pressure to it in atmosphere
Carry out measurement of partial discharge.Common way is that small size high voltage device is immersed in insulating oil to be tested in industry, its
Shortcoming is exactly to cause element surface greasy dirt；In addition, insulating oil easily pollutes element, element is set to moisturize, so as to cause element exhausted
Edge hydraulic performance decline, influences result of the test, and later stage cleaning difficulty is high.
Therefore, in the urgent need to convenient, accurate, the free of contamination detection means of one kind carries out part to small size high voltage devices
Discharge examination.
The content of the invention
The present invention proposes a kind of ultrasonic detection device for partial discharge for small size high voltage devices, solves existing skill
The problem of partial discharge test cannot be in atmosphere done in art to miniaturized component.
The technical proposal of the invention is realized in this way：
A kind of ultrasonic detection device for partial discharge for small size high voltage devices, including：Sealed shell of tank, cumulative dress
Put, ultrasonic sensor and insulator；The sealed shell of tank and the energy-gathering device are formed in one structure；The insulator position
In the top of the sealed shell of tank；The sealed shell of tank inner bottom part is provided with the test platform for placing detected element；It is described close
The top air inlet pipeline of sealed cans body is provided with the intake valve for being filled with SF6 gases, the bottom outlet pipe of the sealed shell of tank
It is provided with extraction valve；The energy-gathering device is taper；For assembling at the energy-gathering device of ultrasonic energy its distal opening
It is fixedly connected with the ultrasonic sensor.
Preferably, the energy-gathering device of the taper is located on the sealed shell of tank at just to the detected element；It is described
Sound-absorbing material is filled with the inwall of sealed shell of tank and on the outer wall of the energy-gathering device.
Preferably, being provided with sealing ring between the energy-gathering device and the ultrasonic sensor.
Preferably, the ultrasonic sensor includes shell, screw and BNC heads；The enclosure be provided with base and
Resonator, is provided with piezoelectric chip between the base resonator, the piezoelectric chip is connected by wire with described BNC；
The ultrasonic sensor is fixedly connected by the screw with the energy-gathering device；The top open part of the shell is provided with gold
Category guard；The madial wall of the shell is provided with sound-absorbing material, the shell and it is described BNC between be provided with encapsulant.
Preferably, the side wall of the sealed shell of tank is provided with observation window.
Preferably, being provided with grading shield at the top of the insulator.
Preferably, being additionally provided with pressure detecting pipeline on the sealed shell of tank, the pressure detecting pipeline is provided with pressure
Meter.
Preferably, the sound-absorbing material is flexible glue or foam.
Preferably, the encapsulant is hard rubber.
Above-mentioned insulator is used to support wire and prevents electric current from returning ground.By sealed shell of tank top air inlet pipeline and intake valve
To SF6 gases are filled with tank body, it is evacuated by sealed shell of tank bottom outlet pipe and air outlet valve；On pressure detecting pipeline
Pressure gauge is used to show the air pressure inside sealed shell of tank.Grading shield is used to play pressure and shielding action.Test platform is used to put
Put tested thing.
Beneficial effects of the present invention are：
It is used as dielectric by filling SF6 gases in sealed shell of tank, it is ensured that the insulation between detected element outlet terminal is strong
Degree.
Set tapered by by energy-gathering device profile, be conducive to the polymerization of ultrasonic wave, can effectively assemble sealed shell of tank
The ultrasonic wave of internal de minimis energy, and it is avoided that scattering and disappearing for ultrasonic energy.
Observation window is set on sealed shell of tank, is easy to attendant to lay and detected element of taking, be easy to observe hermetically sealed can
The situation of change in internal portion.
By in energy-gathering device madial wall and the filling sucting sound material on sealed shell of tank inwall, can effectively reduce noise
Interference, enhances the interference free performance of device, so as to improve monitoring accuracy.
Sealing ring is set by between energy-gathering device ultrasonic sensor, is conducive to mounting ultrasonic sensor and guarantor
Demonstrate,prove the sealing of whole device.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is that the overall structure of the ultrasonic detection device for partial discharge for small size high voltage devices of the present invention is shown
It is intended to；
Fig. 2 is the A-A of Fig. 1 to sectional view；
Fig. 3 is partial enlargement structural representations of the Fig. 2 at I；
In figure：
1st, sealed shell of tank, 2, energy-gathering device, 3, ultrasonic sensor, 4, sound-absorbing material, 5, encapsulant, 6, insulator,
7th, charge valve, 8, extraction valve, 9, pressure gauge, 10, observation window, 12, grading shield, 13, test platform, 14, detected element；31st, it is outer
Shell, 33, metal net mask, 34, base, 35, resonator, 36, piezoelectric chip, 37, screw, 38, BNC heads, 39, sealing ring.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention；Technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Knowable to embodiment as shown in Figure 1, a kind of shelf depreciation for small size high voltage devices of the present invention
Supersonic detection device, including：Sealed shell of tank 1, energy-gathering device 2, ultrasonic sensor 3 and insulator 6；Sealed shell of tank 1 and cumulative
Device 2 is formed in one structure；Insulator 6 is located at the top of sealed shell of tank 1；The inner bottom part of sealed shell of tank 1 is provided with for placing quilt
Survey the test platform 13 of element 14；The top air inlet pipeline of sealed shell of tank 1 is provided with the intake valve 7 for being filled with SF6 gases, close
The bottom outlet pipe of sealed cans body 1 is provided with extraction valve 8；Energy-gathering device 2 is taper；Cumulative for assembling ultrasonic energy is filled
Put and be fixedly connected with ultrasonic sensor 3 at 2 its distal opening.
The energy-gathering device 2 of above-mentioned taper is located on sealed shell of tank 1 at just to detected element 14；Above-mentioned sealed shell of tank 1 it is interior
Sound-absorbing material 4 is filled with wall and on the outer wall of energy-gathering device 2.Noise interference can be effectively reduced, device is enhanced
Interference free performance, so as to improve monitoring accuracy.
Sealing ring 39 is provided between above-mentioned energy-gathering device 2 and ultrasonic sensor 3.Be conducive to mounting ultrasonic sensor with
And isolation external interference.
Above-mentioned ultrasonic sensor 3 includes shell 31, screw 37 and BNC first 38；Base 34 is provided with inside shell 31 harmonious
Shaken device 35, and piezoelectric chip 36 is provided between the resonator 35 of base 34, and piezoelectric chip 36 is connected by wire first with BNC 38；It is super
Sonic sensor 3 is fixedly connected by screw 37 with energy-gathering device 2；The top open part of shell 31 is provided with metal net mask 33；Outward
The madial wall of shell 31 is provided with sound-absorbing material 4, and encapsulant 5 is provided between shell 31 and BNC first 38.
The side wall of sealed shell of tank 1 is provided with observation window 10.The situation of change for being easy to attendant to observe inside sealed shell of tank.
The top of insulator 6 is provided with grading shield 12, plays pressure and shielding action.
Pressure detecting pipeline is additionally provided with sealed shell of tank 1, pressure detecting pipeline is provided with pressure gauge 9, is sealed for showing
The air pressure of tank interior.
Above-mentioned sound-absorbing material 4 can be flexible glue or foam.Above-mentioned encapsulant 5 can be hard rubber etc..
Above-mentioned insulator 6 is used to support wire and prevents electric current from returning ground.By the top air inlet pipeline of sealed shell of tank 1 and air inlet
Valve 7 is evacuated, test platform 13 to SF6 gases are filled with tank body by the bottom outlet pipe of sealed shell of tank 1 and air outlet valve 8
For placing tested thing.
In sum, the present invention sets tapered by by energy-gathering device profile, is conducive to the polymerization of ultrasonic wave, Ke Yiyou
The ultrasonic wave of effect aggregation sealed shell of tank inside de minimis energy, and it is avoided that scattering and disappearing for ultrasonic energy.
Whole device is easy to operate, and reliability is high.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (9)
1. a kind of ultrasonic detection device for partial discharge for small size high voltage devices, it is characterised in that including：Sealed shell of tank
(1), energy-gathering device (2), ultrasonic sensor (3) and insulator (6)；The sealed shell of tank (1) and the energy-gathering device (2) are
Integrated formed structure；Top of the insulator (6) positioned at the sealed shell of tank (1)；Sealed shell of tank (1) inner bottom part is provided with
Test platform (13) for placing detected element (14)；The top air inlet pipeline of the sealed shell of tank (1) is provided with for filling
Enter the intake valve (7) of SF6 gases, the bottom outlet pipe of the sealed shell of tank (1) is provided with extraction valve (8)；The cumulative dress
It is taper to put (2)；It is solid with the ultrasonic sensor at the energy-gathering device of ultrasonic energy its distal opening for assembling
Fixed connection.
2. a kind of ultrasonic detection device for partial discharge for small size high voltage devices according to claim 1, it is special
Levy and be, the energy-gathering device (2) of the taper is on the sealed shell of tank (1) just to the detected element (14) place；It is described
Sound-absorbing material (4) is filled with the inwall of sealed shell of tank (1) and on the outer wall of the energy-gathering device (2).
3. a kind of ultrasonic detection device for partial discharge for small size high voltage devices according to claim 1, it is special
Levy and be, sealing ring (39) is provided between the energy-gathering device (2) and the ultrasonic sensor (3).
4. a kind of ultrasonic detection device for partial discharge for small size high voltage devices according to claim 1, it is special
Levy and be, the ultrasonic sensor (3) includes shell (31), screw (37) and BNC (38)；Set inside the shell (31)
There is base (34) resonator (35), piezoelectric chip (36), the piezoelectricity are provided between the base (34) resonator (35)
Chip (36) is connected by wire with described BNC (38)；The ultrasonic sensor (3) by the screw (37) with it is described
Energy-gathering device (2) is fixedly connected；The top open part of the shell (31) is provided with metal net mask (33)；The shell (31) it is interior
Side wall is provided with sound-absorbing material (4), and encapsulant (5) is provided between the shell (31) and described BNC (38).
5. a kind of ultrasonic detection device for partial discharge for small size high voltage devices according to claim 1, it is special
Levy and be, the side wall of the sealed shell of tank (1) is provided with observation window (10).
6. a kind of ultrasonic detection device for partial discharge for small size high voltage devices according to claim 1, it is special
Levy and be, grading shield (12) is provided with the top of the insulator (6).
7. a kind of ultrasonic detection device for partial discharge for small size high voltage devices according to claim 1, it is special
Levy and be, pressure detecting pipeline is additionally provided with the sealed shell of tank (1), the pressure detecting pipeline is provided with pressure gauge (9).
8. a kind of ultrasonic detection device for partial discharge for small size high voltage devices according to claim 2 or 4, its
It is characterised by, the sound-absorbing material (4) is flexible glue or foam.
9. a kind of ultrasonic detection device for partial discharge for small size high voltage devices according to claim 4, it is special
Levy and be, the encapsulant (5) is hard rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410850246.8A CN104569760B (en) | 2014-12-31 | 2014-12-31 | A kind of ultrasonic detection device for partial discharge for small size high voltage devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410850246.8A CN104569760B (en) | 2014-12-31 | 2014-12-31 | A kind of ultrasonic detection device for partial discharge for small size high voltage devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104569760A CN104569760A (en) | 2015-04-29 |
| CN104569760B true CN104569760B (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410850246.8A Expired - Fee Related CN104569760B (en) | 2014-12-31 | 2014-12-31 | A kind of ultrasonic detection device for partial discharge for small size high voltage devices |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201903615U (en) * | 2010-12-18 | 2011-07-20 | 保定天威新域科技发展有限公司 | Self-absorption gas insulated switchgear (GIS) partial discharge detection sensor |
| CN102360059A (en) * | 2011-09-23 | 2012-02-22 | 上海市电力公司 | Power transmission and distribution line partial discharge fault on-line detection method and apparatus thereof |
| CN103616625A (en) * | 2013-08-16 | 2014-03-05 | 国家电网公司 | External sensor system used for detecting partial discharge |
| CN204389633U (en) * | 2014-12-31 | 2015-06-10 | 刘大永 | A kind of ultrasonic detection device for partial discharge for small size high voltage devices |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0460473A (en) * | 1990-06-29 | 1992-02-26 | Meidensha Corp | Preventive maintenance apparatus for gas insulated power equipment |
-
2014
- 2014-12-31 CN CN201410850246.8A patent/CN104569760B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201903615U (en) * | 2010-12-18 | 2011-07-20 | 保定天威新域科技发展有限公司 | Self-absorption gas insulated switchgear (GIS) partial discharge detection sensor |
| CN102360059A (en) * | 2011-09-23 | 2012-02-22 | 上海市电力公司 | Power transmission and distribution line partial discharge fault on-line detection method and apparatus thereof |
| CN103616625A (en) * | 2013-08-16 | 2014-03-05 | 国家电网公司 | External sensor system used for detecting partial discharge |
| CN204389633U (en) * | 2014-12-31 | 2015-06-10 | 刘大永 | A kind of ultrasonic detection device for partial discharge for small size high voltage devices |
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| CN104569760A (en) | 2015-04-29 |
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Effective date of registration: 20190610 Address after: 071000 Six Floors of Building 6B, Science Park, North Second Ring University, Baoding City, Hebei Province Patentee after: BAODING KEYUAN HUIDE MEASUREMENT AND CONTROL TECHNOLOGY CO.,LTD. Address before: 071000 Six Floors of Building 6B, Science Park, North Second Ring University, Baoding City, Hebei Province Patentee before: Liu Dayong |
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Granted publication date: 20170616 |
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