CN103969563A - Pressure testing device capable of pneumatically switching electrodes and regulating distance - Google Patents
Pressure testing device capable of pneumatically switching electrodes and regulating distance Download PDFInfo
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- CN103969563A CN103969563A CN201410228744.9A CN201410228744A CN103969563A CN 103969563 A CN103969563 A CN 103969563A CN 201410228744 A CN201410228744 A CN 201410228744A CN 103969563 A CN103969563 A CN 103969563A
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Abstract
The invention relates to a pressure testing device capable of pneumatically switching electrodes and regulating a distance. The device comprises a tank main body, and an observation window, a high-voltage introduction component, an electrode rotating and moving component and a tank body fixing and moving component, which are arranged on the tank main body respectively, wherein the high-voltage introduction component comprises a high-voltage electrode; the electrode rotating and moving component comprises a low-voltage electrode and a rotating and moving unit connected with the high-voltage electrode; the high-voltage electrode and the low-voltage electrode are oppositely placed in a cavity of the tank main body. Compared with the prior art, the pressure testing device has the advantages that the gas cost is lowered, the testing flexibility is improved, the equipment safety is improved, and the like.
Description
Technical field
The present invention relates to a kind of pressure experimental device, especially relate to a kind of can pneumatic switching electrode and the pressure experimental device of roll adjustment.
Background technology
Insulating material plays very important effect in electrical equipment, and the fault 50%～70% of electrical equipment is all caused by insulation fault.And in solid, liquid, gas-insulated medium, gas-insulated is occupied very large share and can not be substituted in a short time.This is because compare with liquid with solid, and gas insulating material has fills the advantages such as convenient, lightweight, insulation self-reparability is good.
From the 1950's, SF6 gas is widely used in air insulating device as gas-insulated switch GIS (gas insulated switchgear) and gas-insulated transmission line GIL (gas insulatedtransmission lines) as insulating medium.SF6 gas-insulated medium had once played very large effect to the development of high-voltage electrical apparatus.But SF6 belongs to one of six kinds of greenhouse gases, SF6 endangers larger greenhouse gases as a kind of to atmospheric environment, the potential value of its greenhouse effect (global warming potential) is 23900 times of CO2, and approximately 3200 life-spans existing in atmosphere, global climate is slowed down and has cumulative effect.Minimizing greenhouse gas emission, mitigation of climate change are the main targets of " the United Nations's climate change pact " and Kyoto Protocol, and China also grabs as major tasks of government using reducing greenhouse gas emission.In addition, SF6 has high, the easy liquefaction of price, to weakness such as electric field uniformity coefficient sensitivities, and people started to be conceived to the research of SF6 place of gas in recent years.Research method on place of gas electric discharge has: the impact on gas discharge etc. on the impact of discharging, different electrode distance of the shape of the flash-over characteristic research under gas with various pressure, the research of Different electrodes surfaceness, Different electrodes.And the realization of these tests needs a set of gas discharge test unit mostly.
Known report for work as disclosed in CN103105568A aging and office charging integrated test unit its shortcoming are that high-field electrode is irremovable, when low-field electrode is changed, need to open cover.Its shortcoming is that test efficiency is low, also wants supporting gas concentration unit.
The disclosed gas test device of Granted publication CN203365620U can have been realized the rotation of electrode and change, but electric controller easily causes high voltage to scurry into low pressure end, experimenter is caused to danger.And high-field electrode can cause the variation of gas volume and pressure in tank in moving process, causes certain error for test.
Summary of the invention
Object of the present invention be exactly provide in order to overcome the defect that above-mentioned prior art exists a kind of can pneumatic switching electrode and the pressure experimental device of roll adjustment, this device can be realized rotation and the roll adjustment of electrode in tank in the situation that of can opening not, carries out the test between Different electrodes type; And in this change procedure, in tank can there is not the variation of volume and pressure in gas.
Object of the present invention can be achieved through the following technical solutions:
A kind of can pneumatic switching electrode and the pressure experimental device of roll adjustment, it is characterized in that, comprise can body and be arranged on respectively view window on can body, high pressure introduces assembly, electrode rotary and moving assembly and tank body is fixed and moving assembly, described high pressure is introduced assembly and is comprised high-field electrode, the unit in rotary moving that described electrode rotary comprises low-field electrode and is connected with voltage electrode with moving assembly, described high-field electrode and low-field electrode are just to inserting after arranging in can body cavity.
Described high pressure is introduced assembly and is also comprised cover, bushing and high-voltage connection, described cover and can body are tightly connected, described bushing is also fixedly connected with cover through cover center, and described high-voltage connection is connected with high-field electrode through after bushing successively.Cover is made up of insulating material, and coordinates and can play good sealing function with can body.
Described electrode rotary and moving assembly are for rotation and the movement of low-field electrode, specifically comprise rotary cylinder, turning axle, transition axis and bidirectional-movement cylinder, described rotary cylinder is connected with bidirectional-movement cylinder by turning axle, transition axis successively, and low-field electrode is installed at described bidirectional-movement cylinder two ends.
When described low-field electrode is initially at 0, low-field electrode is just just right with high-field electrode; The described each anglec of rotation of rotary cylinder turning axle is 180 °, still just right with high-field electrode after guaranteeing to rotate, and in rotary course, only exists rotation not have translation.
Described bidirectional-movement cylinder is provided with the induction viameter for measuring low-field electrode displacement.
Also comprise turnover tracheae, this turnover tracheae passes can body through after transition axis, and described tracheae is poured into a mould with epoxy resin material and solidifies evenly in the part of transition axis inside, seamless.
Described view window comprises by the flange of glass visor and fixing glass visor and forming.
The fixing rubber wheel that comprises tank support with moving assembly and be fixed on tank support bottom of described tank body.
The principle that realizes of pressure experimental device of the present invention is: can body is a cylinder type, and respectively there are an insulation cover and simplified cooperation sealing in cylinder two ends.The two ends of insulation cover are each fixes a bushing, and high voltage is introduced via bushing and to pass to the high-tension electricity of tank interior extreme from external power.Low-field electrode is connected on the turning axle of electrode rotary and moving assembly, and can body and electrode rotary and moving assembly are as the reliable ground connection of low-field electrode terminals simultaneously.When test condition is suitable, between high-field electrode and low-field electrode, just can observe the phenomenon of gas corona or electric discharge.
Compared with prior art, the present invention has saving gas cost, improves the dirigibility of test, improves the security of equipment, specific as follows:
1, electrode rotary and moving assembly, by pneumatic linear actuator control, can be realized the operated from a distance of certain distance.The air valve door of pneumatic linear actuator is arranged on to the place away from test unit, by regulating pneumatic valve button, can realizes rotation and the movement of electrode.Owing to not needing to regulate electrode in front of each auto levelizer, can increase like this safety of testing crew.
2, owing to only there is spin friction between tank wall and electrode, the contact gap of the two can seal by O-ring seal, has farthest reduced the possibility of Leakage Gas.
3, whole adjustment process does not need repeatedly to open tank body and inflation/deflation repeatedly, has reduced operating personnel's labour intensity, has saved test setup time.
The variation that 4, can not bring gas volume and pressure in tank body in changing electrode distance and changing electrode shape process, is related to that for accurate learning gas pressure and electric discharge analysis of experiments seems more tight and reliable.
Brief description of the drawings
Fig. 1 is the three-dimensional structural representation that splits of the present invention;
Fig. 2 is electrode rotary of the present invention and moving assembly structural representation;
Fig. 3 is side-looking structural representation of the present invention;
Fig. 4 is that the present invention assembles rear structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
Referring to Fig. 1～Fig. 4, the description of the pressure experimental device preferred embodiment of pneumatic switching electrode of the present invention and roll adjustment, should be understood that preferred embodiment is full of in order better to explain the present invention, instead of in order to limit the scope of the invention.Comprise main tank body 1 by the pressure experimental device shown in Fig. 1, main tank body 1 two ends are connected with cover 2, and bushing 3 passes cover 2 also and cover 2 is closely fixed together.High-pressure conductor 4 is deep into main tank body 1 inside through bushing 3 and cover 2.High-pressure conductor 4 one end are provided with binding post for being connected high-voltage signal with the connected other end of high-field electrode 5.Main tank body 1 front end is provided with view window 6, and view window 6 is made up of the flange 8 of glass visor 7 and fixing glass visor 7.View window 6 is observed tank interior electric discharge phenomena when testing.A rotary cylinder 9 is fixed in main tank body 1 upper end, and its effect is each circumferencial direction Rotate 180 degree, can make two low-field electrodes 10 on the same line complete and exchange.Rotary cylinder 9 turning axle 901 lower ends are connected with a transition axis 11, and transition axis 11 lower ends and another bidirectional-movement cylinder 12 are fixed together, and the center of gravity of point of fixity and bidirectional-movement cylinder 12 overlaps.Bidirectional-movement cylinder 12 connects turnover tracheaes 13, and turnover tracheae 13 passes main tank body 1 outside from transition axis 11 inside, requires in addition turnover tracheae 13 and transition axis 11 intermediate space to adopt the embeddings of epoxy resin material to solidify.Induction distance measuring equipment 121 is housed on bidirectional-movement cylinder 12.Bidirectional-movement cylinder 12 two ends and low-field electrode 13 are fixing.Main tank body 1 lower end and bracing frame 14 are fixing.Four jiaos of bracing frames can be fixed with pulley.
Prepare test when whole test unit gassy, adjust the step of electrode shape and distance: initial position is that high-field electrode 5 is pin electrode, and low-field electrode 10 is plate electrode, and two electrode gap distance are 0mm.Now being adjusted into high pressure is pin electrode, and low pressure is also pin electrode, and electrode distance is 40mm.Regulate the Remote control valve button of rotary cylinder 9 can realize bidirectional-movement cylinder 12 Rotate 180s °, there is variation in the electrode shape relative with high-field electrode 5 now.Continue to regulate the Remote control valve of bidirectional-movement cylinder 12 that low-field electrode 10 is stopped after default definite value 40mm away from high-field electrode 5.Now just can start to test.
The present invention, the in the situation that of can opening not, can realize the pressure of gas in tank body in 0～0.7MPa range regulation; Can realize freely switching of pin-plate, rod-rod, several electrodes of plate-plate; Can realize any adjusting of two electrode separations from 0mm to 100mm scope.Electrode assembly of the present invention can be realized and rotate and move in the situation that whole tank body is not opened, and has reduced the Leakage probability of gas in tank body, has reduced the number of times that gas tank is opened, the security that has simultaneously improved equipment operating.
Above-described embodiment is only for illustrating the present invention, and wherein the structure of each several part, title, connected mode all can change.Every equivalents of carrying out on technical solution of the present invention basis or improvement, all should not get rid of outside protection scope of the present invention.
Claims (8)
- One kind can pneumatic switching electrode and the pressure experimental device of roll adjustment, it is characterized in that, comprise can body and be arranged on respectively view window on can body, high pressure introduces assembly, electrode rotary and moving assembly and tank body is fixed and moving assembly, described high pressure is introduced assembly and is comprised high-field electrode, the unit in rotary moving that described electrode rotary comprises low-field electrode and is connected with voltage electrode with moving assembly, described high-field electrode and low-field electrode are just to inserting after arranging in can body cavity.
- 2. can pneumatic switching electrode according to a kind of described in claim I and the pressure experimental device of roll adjustment, it is characterized in that, described high pressure is introduced assembly and is also comprised cover, bushing and high-voltage connection, described cover and can body are tightly connected, described bushing is also fixedly connected with cover through cover center, and described high-voltage connection is connected with high-field electrode through after bushing successively.
- According to claim 1 a kind of can pneumatic switching electrode and the pressure experimental device of roll adjustment, it is characterized in that, described electrode rotary and moving assembly are for rotation and the movement of low-field electrode, specifically comprise rotary cylinder, turning axle, transition axis and bidirectional-movement cylinder, described rotary cylinder is connected with bidirectional-movement cylinder by turning axle, transition axis successively, and low-field electrode is installed at described bidirectional-movement cylinder two ends.
- According to claim 3 a kind of can pneumatic switching electrode and the pressure experimental device of roll adjustment, it is characterized in that, when described low-field electrode is initially at 0, low-field electrode is just just right with high-field electrode; The described each anglec of rotation of rotary cylinder turning axle is 180 °, still just right with high-field electrode after guaranteeing to rotate, and in rotary course, only exists rotation not have translation.
- According to claim 3 a kind of can pneumatic switching electrode and the pressure experimental device of roll adjustment, it is characterized in that, described bidirectional-movement cylinder is provided with the induction viameter for measuring low-field electrode displacement.
- According to claim 3 a kind of can pneumatic switching electrode and the pressure experimental device of roll adjustment, it is characterized in that, also comprise turnover tracheae, this turnover tracheae passes can body through after transition axis, described tracheae is poured into a mould with epoxy resin material and solidifies evenly in the part of transition axis inside, seamless.
- According to claim 1 a kind of can pneumatic switching electrode and the pressure experimental device of roll adjustment, it is characterized in that, described view window comprises by the flange of glass visor and fixing glass visor and forming.
- According to claim 1 a kind of can pneumatic switching electrode and the pressure experimental device of roll adjustment, it is characterized in that the fixing rubber wheel that comprises tank support with moving assembly and be fixed on tank support bottom of described tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228744.9A CN103969563B (en) | 2014-05-27 | 2014-05-27 | Pressure testing device capable of pneumatically switching electrodes and regulating distance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410228744.9A CN103969563B (en) | 2014-05-27 | 2014-05-27 | Pressure testing device capable of pneumatically switching electrodes and regulating distance |
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| CN103969563A true CN103969563A (en) | 2014-08-06 |
| CN103969563B CN103969563B (en) | 2017-02-15 |
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| CN201410228744.9A Expired - Fee Related CN103969563B (en) | 2014-05-27 | 2014-05-27 | Pressure testing device capable of pneumatically switching electrodes and regulating distance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797043A (en) * | 2017-11-10 | 2018-03-13 | 清华大学 | A kind of humidity, air pressure can decouple the pilot discharge pilot system of regulation |
| CN109324272A (en) * | 2018-11-13 | 2019-02-12 | 中国电力科学研究院有限公司 | It is a kind of to examine trouble unit of the GIL based on manual discharge for extra-high voltage electrified |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000166034A (en) * | 1998-11-30 | 2000-06-16 | Hitachi Ltd | Gas insulated switchgear |
| CN101059485A (en) * | 2007-05-23 | 2007-10-24 | 重庆大学 | Sulfur hexafluoride discharge decomposed gas component analysis system and its usage method |
| CN101334443A (en) * | 2008-04-18 | 2008-12-31 | 西安交通大学 | Gas discharge tube automatized ageing device |
| JP2011054504A (en) * | 2009-09-04 | 2011-03-17 | Toshiba Corp | Vacuum valve and tap switching device for gas insulation load |
| CN102445643A (en) * | 2011-09-30 | 2012-05-09 | 云南电力试验研究院(集团)有限公司 | GIS (Gas Insulated Switchgear) test platform capable of adjusting electrode structure |
| CN102608505A (en) * | 2012-03-30 | 2012-07-25 | 重庆大学 | Multi-region detection system for partial discharge decomposition components of insulating gas and method thereof |
| CN203365620U (en) * | 2013-09-04 | 2013-12-25 | 国家电网公司 | Low-smell gas discharge test device |
-
2014
- 2014-05-27 CN CN201410228744.9A patent/CN103969563B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000166034A (en) * | 1998-11-30 | 2000-06-16 | Hitachi Ltd | Gas insulated switchgear |
| CN101059485A (en) * | 2007-05-23 | 2007-10-24 | 重庆大学 | Sulfur hexafluoride discharge decomposed gas component analysis system and its usage method |
| CN101334443A (en) * | 2008-04-18 | 2008-12-31 | 西安交通大学 | Gas discharge tube automatized ageing device |
| JP2011054504A (en) * | 2009-09-04 | 2011-03-17 | Toshiba Corp | Vacuum valve and tap switching device for gas insulation load |
| CN102445643A (en) * | 2011-09-30 | 2012-05-09 | 云南电力试验研究院(集团)有限公司 | GIS (Gas Insulated Switchgear) test platform capable of adjusting electrode structure |
| CN102608505A (en) * | 2012-03-30 | 2012-07-25 | 重庆大学 | Multi-region detection system for partial discharge decomposition components of insulating gas and method thereof |
| CN203365620U (en) * | 2013-09-04 | 2013-12-25 | 国家电网公司 | Low-smell gas discharge test device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797043A (en) * | 2017-11-10 | 2018-03-13 | 清华大学 | A kind of humidity, air pressure can decouple the pilot discharge pilot system of regulation |
| CN109324272A (en) * | 2018-11-13 | 2019-02-12 | 中国电力科学研究院有限公司 | It is a kind of to examine trouble unit of the GIL based on manual discharge for extra-high voltage electrified |
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| CN103969563B (en) | 2017-02-15 |
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Effective date of registration: 20170720 Address after: 200240 Dongchuan Road, Shanghai, No. 800, No. Co-patentee after: State Grid Shanghai Municipal Electric Power Company Patentee after: Shanghai Jiao Tong University Address before: 200240 Dongchuan Road, Shanghai, No. 800, No. Patentee before: Shanghai Jiao Tong University |
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