CN203929897U - A kind of experimental provision that accelerates heat ageing for paper oil insulation - Google Patents
A kind of experimental provision that accelerates heat ageing for paper oil insulation Download PDFInfo
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- CN203929897U CN203929897U CN201420243838.9U CN201420243838U CN203929897U CN 203929897 U CN203929897 U CN 203929897U CN 201420243838 U CN201420243838 U CN 201420243838U CN 203929897 U CN203929897 U CN 203929897U
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- drying oven
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Abstract
The utility model discloses a kind of experimental provision that accelerates heat ageing for paper oil insulation, comprise vacuum drying oven, fuel reserve tank and vacuum pump; Wherein, store transformer oil in fuel reserve tank, fuel reserve tank is connected with vacuum drying oven by oil fuel tube, and oil fuel tube is provided with fuel feeding valve; Vacuum pump is connected with vacuum drying oven by exhaust tube; The support of placing organic vial is housed on the bottom thermal conductive surface in vacuum drying oven, and test product is arranged in organic glass bottle; Vacuum drying oven is provided with the temperature controller for Temperature Setting and warming temperature.A kind of experimental provision that accelerates heat ageing for paper oil insulation of the utility model, its bottom in vacuum drying oven is provided with support, has effectively avoided organic glass bottle to burst phenomenon because of the heat that excessive temperature differentials causes; On oil fuel tube, be provided with fuel feeding valve, the control that oiling process is cut-off is more efficient and convenient, does not waste resource, good practical effect.
Description
Technical field:
The utility model relates to a kind of acceleration thermal ageing test device, especially a kind of experimental provision that accelerates heat ageing for paper oil insulation.
Background technology:
In high voltage electric power equip ment operational process, the electric stress that insulating material bears constantly exists and cannot avoid.The safety and stability of the operational reliability direct relation electric system of especially large oil immersed power transformer, data shows according to statistics, the interruption of service of transformer is mainly caused by its insulation system fault, so the operation life of transformer depends on the ageing state of Oil-Paper Insulation to a great extent.Transformer is in its During Process of Long-term Operation, and oil-immersed insulating paper bears the multiple external stress effects such as heat, electricity, machinery, chemistry for a long time, causes self insulation and mechanical property to decline gradually, and may cause transformer fault.Therefore, the characteristic under the different ageing states of Research on Oil paper insulation, most important to Fault Diagnosis Method of Power Transformer and prediction transformer life, to the insulating Design of experimental transformer, operation maintenance, provide necessary experimental basis and theory support.
At present, accelerate in Heat Ageing, the cavity of directly the test product chamber that test product is housed being put into vacuum drying oven seals, in oiling process, for reaching the object of dry, filtration and degasification, need to drip a shape and slowly inject, the test product chamber that therefore requires to be equipped with test product is transparence cavity, to observe oiling situation from vacuum drying oven, and when transformer oil thorough impregnation test product, stop in time oiling process, so cavity used is that organic glass is made at ordinary times.But when rising temperature, because oily heat conduction is excessively slow, cause test product chamber near-bottom temperature and upper end excessive temperature differentials, organic glass bottle heat is burst, affect experiment process and experimental situation, reduce work efficiency, even experiment operator is worked the mischief.And in stopping oiling process, conventional method is to adopt clip directly to clamp oil fuel tube to dam at present, this operation is not only awkward, the utmost point is not rigorous, and causes the wasting of resources.
Utility model content:
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of experimental provision that accelerates heat ageing for paper oil insulation is provided, and it is without repetitive operation, and operating process is efficient and convenient, has improved work efficiency.
For achieving the above object, the utility model has been taked following technical scheme:
An experimental provision that accelerates heat ageing for paper oil insulation, is provided with teflon support on vacuum drying oven bottom thermal conductive surface, and organic glass bottle is placed on above support and heats; And fuel feeding valve is installed in oil pick-up tube, in the very first time, effectively cut off oiling process.
An experimental provision that accelerates heat ageing for paper oil insulation, comprises vacuum drying oven, fuel reserve tank and vacuum pump; Wherein, store transformer oil in fuel reserve tank, fuel reserve tank is connected with vacuum drying oven by oil fuel tube, and oil fuel tube is provided with fuel feeding valve; Vacuum pump is connected with vacuum drying oven by exhaust tube; The support of placing organic vial is housed on the bottom thermal conductive surface in vacuum drying oven, and test product is arranged in organic glass bottle; Vacuum drying oven is provided with the temperature controller for Temperature Setting and warming temperature.
The utility model further improves and is, exhaust tube is provided with extraction valve.
The utility model further improves and is, support adopts teflon to make.
The utility model further improves and is, support is comprised of four foot rests, and it is highly 10mm.
The utility model further improves and is, vacuum drying oven is high temperature oven, and its adjustable temperature range is that+10～250 ℃, precision are ± 1 ℃, and maximum vacuum can reach 50Pa, and the interior space dimension of vacuum drying oven is 420 * 350 * 370mm
3.
The utility model further improves and is, vacuum drying oven is provided with tensimeter and air release.
Compared with prior art, the utlity model has following advantage:
A kind of experimental provision that accelerates heat ageing for paper oil insulation of the utility model, its bottom in vacuum drying oven is provided with support, has effectively avoided organic glass bottle to burst phenomenon because of the heat that excessive temperature differentials causes; On oil fuel tube, be provided with fuel feeding valve, the control that oiling process is cut-off is more efficient and convenient, does not waste resource, good practical effect.
Accompanying drawing explanation:
Fig. 1 is a kind of structural representation that accelerates the experimental provision of heat ageing for paper oil insulation of the utility model.
Wherein: 1 is transformer oil, 2 is support, and 3 is vacuum drying oven, and 4 is fuel feeding valve, and 5 is fuel reserve tank, 6 is test product, and 7 is vacuum pump, and 8 is extraction valve, and 9 is tensimeter, and 10 is temperature controller, 11 is air release, and 12 is bottom thermal conductive surface, and 13 is organic glass bottle, and 14 is oil fuel tube, and 15 is exhaust tube.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further details.
Referring to Fig. 1, a kind of experimental provision that accelerates heat ageing for paper oil insulation of the utility model, comprises vacuum drying oven 3, fuel reserve tank 5 and vacuum pump 7; Wherein, fuel reserve tank 5 is connected with vacuum drying oven 3 by oil fuel tube 14, and oil fuel tube 14 is provided with fuel feeding valve 4, and it has avoided using after oiling clip to stop continuing the inconvenience of oiling, makes to stop oiling process convenient and swift; Vacuum pump 7 is connected with vacuum drying oven 3 by exhaust tube 15; The support 2 of placing organic vial 13 is housed on the bottom thermal conductive surface 12 in vacuum drying oven 3, and test product 6 is arranged in organic glass bottle 13; Vacuum drying oven 3 is provided with the temperature controller 10 for Temperature Setting and warming temperature; Transformer oil 1 is stored in fuel reserve tank 5, by fuel feeding valve 4, injects in organic vial 13; Vacuum pump 7 is realized the vacuum in vacuum drying oven 3 by extraction valve 8, and vacuum tightness is obtained by tensimeter 9.
Wherein, support 2 adopts teflon to make, and it is comprised of four foot rests, and it is highly 10mm.Support 2 has been avoided in temperature-rise period due to the excessive appearance that causes its heat to burst phenomenon of the interior upper and lower temperature difference of organic glass bottle 13.
Further, exhaust tube 15 is provided with extraction valve 8.Vacuum drying oven 3 is high temperature ovens, and its adjustable temperature range is that+10～250 ℃, precision are ± 1 ℃, and maximum vacuum can reach 50Pa, and the interior space dimension of vacuum drying oven 3 is 420 * 350 * 370mm
3; Vacuum drying oven 3 is provided with tensimeter 4 and air release 11.
For a kind of experimental provision for paper oil insulation acceleration heat ageing of the utility model is further understood, now its course of work is done to an explanation, it comprises the following steps:
1) insulating paper according to testing requirements cutting after, put in organic glass bottle 13, organic glass bottle 13 is inserted to the rear sealing of teflon support 2 in vacuum drying oven 3, close under the prerequisite of air release 11 and open extraction valve 8 and vacuum pump 7, be evacuated to the black vacuum of about 50Pa, and by temperature controller 10, temperature raise and remain on 105 ℃, when obviously declining, vacuum tightness again vacuumizes, and test product is remained in the black vacuum of 50Pa and be dried 24h;
2) open fuel feeding valve 4, transformer oil 1 in fuel reserve tank 5 is drip shape slowly to inject the organic glass bottle 13 that dry insulating paper has been housed, drip transformer oil 1 that shape slowly injects and can reach the effect of dry, filtration and degasification, until transformer oil 1 is by the test product thorough impregnation in whole organic glass bottle 13.In this process, need testing crew outside vacuum drying oven 3, observe the oiling height in organic glass bottle 13;
3) transformer oil 1 and test product 6 are heated to 140 ℃ and accelerate heat ageing;
4) the different ageing steps, open extraction valve 11, reduce test temperature, take out the aging test product under different ageing states.
In sum, a kind of experimental provision that accelerates heat ageing for paper oil insulation of the utility model, its bottom in vacuum drying oven is provided with support, has effectively avoided organic glass bottle to burst phenomenon because of the heat that excessive temperature differentials causes; On oil fuel tube, be provided with fuel feeding valve, the control that oiling process is cut-off is more efficient and convenient, does not waste resource, good practical effect.
Claims (6)
1. for paper oil insulation, accelerate an experimental provision for heat ageing, it is characterized in that, comprise vacuum drying oven (3), fuel reserve tank (5) and vacuum pump (7); Wherein, store transformer oil (1) in fuel reserve tank (5), fuel reserve tank (5) is connected with vacuum drying oven (3) by oil fuel tube (14), and oil fuel tube (14) is provided with fuel feeding valve (4); Vacuum pump (7) is connected with vacuum drying oven (3) by exhaust tube (15); The support (2) of placing organic vial (13) is housed on the bottom thermal conductive surface (12) in vacuum drying oven (3), and test product (6) is arranged in organic glass bottle (13); Vacuum drying oven (3) is provided with the temperature controller (10) for Temperature Setting and warming temperature.
2. a kind of experimental provision that accelerates heat ageing for paper oil insulation according to claim 1, is characterized in that, exhaust tube (15) is provided with extraction valve (8).
3. a kind of experimental provision that accelerates heat ageing for paper oil insulation according to claim 1, is characterized in that, support (2) adopts teflon to make.
4. according to a kind of experimental provision that accelerates heat ageing for paper oil insulation described in claim 1 or 3, it is characterized in that, support (2) is comprised of four foot rests, and it is highly 10mm.
5. transformer oil paper insulation according to claim 1 is accelerated the experimental provision of heat ageing, it is characterized in that, vacuum drying oven (3) is high temperature oven, its adjustable temperature range is that+10～250 ℃, precision are ± 1 ℃, maximum vacuum can reach 50Pa, and the interior space dimension of vacuum drying oven (3) is 420 * 350 * 370mm
3.
6. transformer oil paper insulation according to claim 1 is accelerated the experimental provision of heat ageing, it is characterized in that, vacuum drying oven (3) is provided with tensimeter (4) and air release (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243838.9U CN203929897U (en) | 2014-05-13 | 2014-05-13 | A kind of experimental provision that accelerates heat ageing for paper oil insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243838.9U CN203929897U (en) | 2014-05-13 | 2014-05-13 | A kind of experimental provision that accelerates heat ageing for paper oil insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203929897U true CN203929897U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420243838.9U Expired - Fee Related CN203929897U (en) | 2014-05-13 | 2014-05-13 | A kind of experimental provision that accelerates heat ageing for paper oil insulation |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044569A (en) * | 2015-07-01 | 2015-11-11 | 西安交通大学 | Oil paper insulation electric heating combined aging sealing system |
| CN105259482A (en) * | 2015-10-26 | 2016-01-20 | 西南交通大学 | Traction transformer layered oilpaper insulation dielectric response experiment system |
| CN105699417A (en) * | 2016-01-25 | 2016-06-22 | 云南电网有限责任公司电力科学研究院 | Characterization method for corrosive sulfur of transformer insulating oil |
| CN106483160A (en) * | 2016-10-26 | 2017-03-08 | 远东电缆有限公司 | A kind of detection means of the fuel-displaced phenomenon of PVC cable cover(ing) and detection method |
| CN108732479A (en) * | 2018-05-25 | 2018-11-02 | 云南电网有限责任公司电力科学研究院 | Visualization paper oil insulation electric heating based on magnon agitation cycle combines aging equipment |
| CN112179935A (en) * | 2020-09-30 | 2021-01-05 | 海南电网有限责任公司电力科学研究院 | Simulation test method for accelerating thermal aging of cable paper for transformer |
| CN112748236A (en) * | 2019-10-31 | 2021-05-04 | 中国石油化工股份有限公司 | Method and device for rapidly detecting stability of heavy marine concocted fuel oil |
-
2014
- 2014-05-13 CN CN201420243838.9U patent/CN203929897U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044569A (en) * | 2015-07-01 | 2015-11-11 | 西安交通大学 | Oil paper insulation electric heating combined aging sealing system |
| CN105259482A (en) * | 2015-10-26 | 2016-01-20 | 西南交通大学 | Traction transformer layered oilpaper insulation dielectric response experiment system |
| CN105699417A (en) * | 2016-01-25 | 2016-06-22 | 云南电网有限责任公司电力科学研究院 | Characterization method for corrosive sulfur of transformer insulating oil |
| CN106483160A (en) * | 2016-10-26 | 2017-03-08 | 远东电缆有限公司 | A kind of detection means of the fuel-displaced phenomenon of PVC cable cover(ing) and detection method |
| CN108732479A (en) * | 2018-05-25 | 2018-11-02 | 云南电网有限责任公司电力科学研究院 | Visualization paper oil insulation electric heating based on magnon agitation cycle combines aging equipment |
| CN112748236A (en) * | 2019-10-31 | 2021-05-04 | 中国石油化工股份有限公司 | Method and device for rapidly detecting stability of heavy marine concocted fuel oil |
| CN112179935A (en) * | 2020-09-30 | 2021-01-05 | 海南电网有限责任公司电力科学研究院 | Simulation test method for accelerating thermal aging of cable paper for transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 |