CN103680834A - Transformer oil conservator with piston structure - Google Patents
Transformer oil conservator with piston structure Download PDFInfo
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- CN103680834A CN103680834A CN201310683166.3A CN201310683166A CN103680834A CN 103680834 A CN103680834 A CN 103680834A CN 201310683166 A CN201310683166 A CN 201310683166A CN 103680834 A CN103680834 A CN 103680834A
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- cabinet
- oil
- piston
- transformer
- transformer oil
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Abstract
A transformer oil conservator with a piston structure comprises a circular conservator body. A bottom plate and a flange blanking plate are arranged on the side faces of the conservator body respectively, a support is arranged on the conservator body, an oil inlet pipeline is connected to the conservator body, an adaptive piston is arranged in the conservator body, a fixing plate is connected in the conservator body close to the bottom plate, a spring is connected between the fixing plate and the piston, and the surface of the piston and the surface of the inner wall of the conservator body are respectively provided with a vulcanized integral sealing layer. According to the transformer oil conservator with the piston structure, the technical scheme of the piston structure is adopted, the structure is simple, manufacturing cost is low, the compensation volume is large, a dehydrating breather does not need to be configured, the complete sealing of a transformer is achieved, the oil quality of the transformer is protected, and ageing of transformer oil can be relieved effectively.
Description
Technical field
The present invention relates to power transformer and manufacture field, relate in particular to the oil conservator of transformer.
Background technology
The effect of the transformer oil of oil-immersed power transformer is to guarantee the dielectric strength of transformer; Pass out the heat that transformer produces because of loss when operation; Slow down the aging of insulating material.At Transformer, due to the variation of ambient temperature and transformer load, the oil temperature of transformer oil is also changed within the specific limits, cause thus the volume of transformer oil also will change.Oil conservator is applicable to oil-immersed power transformer and other power equipment; its effect is because the variation of temperature is expanded or shrinks the volume-variation producing in order to compensator transformer oil; normal operation to protection transformer plays an important role, and is the requisite significant components of transformer.Oil conservator is minute minute open type and the large class of sealed type two conventionally, and sealed type can be divided into again rubber bag tank or Rubber Diaphragm Seal formula and wavy metal sealed type.
Open type oil conservator is the single cylindrical shell being rolled into by iron plate, and insulating oil communicates with ambient atmosphere by dehydrating breather simple in structure, because dehydrating breather effect is limited, and insulating oil moisture-sensitive and oxidation during operation.For solving the isolating problem of insulating oil and atmosphere, develop rubber bag tank formula and diaphragm of rubber formula oil conservator.Capsule type oil storage cabinet is on the basis of open type oil conservator, inside has installed the canvas filler rubber capsule for air-isolation additional, form hermetically-sealed construction with shell body, rubber bag tank is by the flexible volume compensation realizing insulating oil, and capsule inner chamber communicates with atmosphere by respirator.This kind of structure oil conservator tentatively realized the isolation of insulating oil and air, moisture absorption and the oxidation of insulating oil have been reduced to a certain extent, alleviated the impact of oily cracking on equipment, but through use for many years, also expose following problem: (1) is in transformer installation, operation and maintenance process, capsule not easily produces the leakage of oil of breaking because of its mechanical strength, and after breakage, is difficult for being found.(2) material of elastomeric material own determines that it is easily aging, and the life-span is short, needs periodic replacement, and changes installment work and need transformer to drain the oil and oiling, and workload is larger.(3) because capsule exists heat absorption surface, there is the condition that forms condensation, so potential threat is very large, by installing dehydrating breather additional, can not thoroughly deal with problems.(4) be prone to during capsule Hypometria to breathe and stop up, cause the accident.(5) because rubber bag tank mechanical strength is low, when transformer vacuumizes, adopt the method for internal and external equilibrium pressure, if fitting operation is improper, capsule very easily damages, and causes unnecessary loss, affects the normal operation of equipment.
Diaphragm type storage oil cabinet is comprised of two and half cylinder bodies, and centre clamps a diaphragm of rubber by flange, and barrier film floats on pasta, by air insulated.The same with capsule type oil storage cabinet, the problem that elastomeric material exists exists equally at diaphragm type storage oil cabinet.Another deadly defect of diaphragm type storage oil cabinet is itself hermetically-sealed construction problem.Because barrier film is crushed between upper-lower casing, closure size is excessive, and sealing property is unreliable, ubiquity seepage after insulating oil surpasses middle part, and oil level easily air amount and moisture when lower.The link-type needle oil level indicator that rubber bag tank or diaphragm type storage oil cabinet adopt, because connecting rod is longer, easily produce distortion, so pointing accuracy is lower, often occurs false oil level.
Metal corrugated oil conservater is full seal type oil conservator of new generation, adopt advanced stainless steel ripple compensation technique, when realizing insulating oil volume compensation, more can guarantee reliably the isolation of insulating oil and air, and there is long working life, without aging, resisting breakage and the feature such as non-maintaining.But its shortcoming be make trouble, cost is higher.
Summary of the invention
The object of the invention is, in order to solve above-mentioned the deficiencies in the prior art, for above-mentioned the deficiencies in the prior art, to the invention provides a kind of transformer oil storage of piston structure, it is all-sealed structure, do not need easily aging barrier film and capsule and dehydrating breather is set, simple in structure, cheap.
The technical scheme that the technical problem that the present invention solves adopts is:
For achieving the above object, the technical solution used in the present invention is: a kind of transformer oil storage of piston structure, it comprises circular cabinet, cabinet side is respectively base plate and flange shrouding, cabinet is provided with support, and cabinet is connected with inflow pipeline, it is characterized in that being provided with in cabinet suitable piston, near in the cabinet of base plate, be connected with fixed head, fixed head and piston space are connected with spring; The surface of above-mentioned piston and cabinet inner wall surface are provided with the sealant of sulfuration one.
During use, the present invention is arranged on above oil tank of transformer by support, by inflow pipeline, is connected with in oil tank of transformer, transformer oil enters in the cabinet of base plate and piston space, and the movement by piston in cabinet realizes the breathing of transformer oil.The sealant of sulfuration one has increased the sealing property between piston and cabinet inwall.Piston, under the active force of transformer oil and spring, moves left and right in cabinet, and when transformer oil heat expansion, oil flows to oil conservator by fuel tank; When transformer oil shrinkage, oil flows to fuel tank by oil conservator, and compensation volume is large.Do not need easily aging barrier film and capsule, owing to being all-sealed structure in the cabinet of base plate and piston space, do not need to install additional dehydrating breather.Transformer, by completely isolated with outside air, has really been realized the hermetically sealed of transformer, has protected the oil of transformer.Its structure is compared with existing diaphragm type storage oil cabinet in addition, simple in structure, low cost of manufacture.
During concrete enforcement, above-mentioned sealant is acrylonitrile-butadiene rubber sealant.
Piston rubber adopts special acrylonitrile-butadiene rubber, heat-resisting, oil resistant, water-fast, and, there is very high tensile strength, chemical resistance performance, wear resistance, long service life.
During concrete enforcement, the cabinet inwall between flange shrouding and inflow pipeline is provided with guide vane end stop, and the sealant of above-mentioned sulfuration one is located in the cabinet inner wall surface between flange shrouding and guide vane end stop.On the cabinet inwall between flange shrouding and inflow pipeline, be provided with guide vane end stop, piston can move in the cabinet inner chamber between flange shrouding and guide vane end stop.
During concrete enforcement, flange shrouding is provided with oil level indicator scale.Oil level indicator scale is for measuring the capacity of transformer oil in oil conservator.
During concrete enforcement, oil level indicator scale is stay-supported oil level indicator scale, and stay-supported oil level indicator scale is connected with piston by bracing wire.Stay-supported oil level indicator scale can measure transformer oil mass in cabinet by the length of bracing wire.Oil level indicator scale also can adopt the digital oil level indicator scale of sensing electric signal measurement method, and digital oil level indicator scale can be realized early warning and remote monitoring by intelligent display controller.
During concrete enforcement, cabinet is provided with oil extraction assembly, and oil extraction assembly comprises outage and stopper.
The invention has the beneficial effects as follows: the present invention adopts the technical scheme of piston structure, simple in structure, cheap; compensation volume is large, also, without configuration dehydrating breather, has realized the hermetically sealed of transformer; protect the oil of transformer, can effectively delay transformer oil deterioration.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, invention is further illustrated.
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure: 1, cabinet 2, support 3, inflow pipeline 4, piston 5, fixed head 6, spring 7, sealant 8, guide vane end stop 9, oil level indicator scale 10, bracing wire 11, base plate 12, flange shrouding 13, oil extraction assembly.
Embodiment
In Fig. 1, a kind of transformer oil storage of piston structure, it comprises circular cabinet 1, and cabinet 1 side is respectively base plate 11 and flange shrouding 12, and cabinet 1 is provided with support 2, cabinet 1 is connected with inflow pipeline 3, cabinet 1 is provided with oil extraction assembly 13, and oil extraction assembly 13 comprises the sealing ring between outage, stopper and outage and stopper, is provided with suitable piston 4 in cabinet 1, on base plate 11, be connected with fixed head 5,4, fixed head 5 and piston are connected with spring 6.Cabinet 1 inwall that flange shrouding 12 and inflow pipeline are 3 is provided with guide vane end stop 8, and the cabinet inner wall surface that flange shrouding 12 and guide vane end stop are 8 is provided with the sealant 7 of sulfuration one; The surface of piston 4 is provided with the sealant 7 of sulfuration one, and sealant 7 is acrylonitrile-butadiene rubber sealant.The sealant 7 of sulfuration one has increased the sealing property between piston 4 and cabinet 1 inwall.Flange shrouding 12 is provided with oil level indicator scale 9, and oil level indicator scale 9 is stay-supported oil level indicator scale, and stay-supported oil level indicator scale is connected with piston 4 by bracing wire 10.
During use, the present invention is arranged on above oil tank of transformer by support 2, by inflow pipeline 3, be connected with in oil tank of transformer, transformer oil enters in the cabinet 1 of 4, base plate 11 and piston, and the movement by piston 4 in cabinet 1 realizes the breathing of transformer oil.Piston 4, under the active force of transformer oil and spring 6, moves left and right in cabinet 1, and when transformer oil heat expansion, oil flows to oil conservator by fuel tank; When transformer oil shrinkage, oil flows to fuel tank by oil conservator, and compensation volume is large.On cabinet 1 inwall of 3 of flange shrouding 12 and inflow pipelines, be provided with guide vane end stop 8, piston 4 can move in cabinet 1 inner chamber of 8 of flange shrouding 12 and guide vane end stops.Cabinet 1 inwall and piston 4 surfaces are provided with the sealant 7 of sulfuration one, and the sealant 7 of sulfuration one has increased the sealing property between piston 4 and cabinet 1 inwall.In cabinet 1 due to 4, base plate 11 and piston, be all-sealed structure, do not need to install additional dehydrating breather.Transformer, by completely isolated with outside air, has really been realized the hermetically sealed of transformer, has protected the oil of transformer.Its structure is compared with existing diaphragm type storage oil cabinet in addition, simple in structure, low cost of manufacture.
Finally, it is also to be noted that, what more than enumerate is only specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, can also have many distortion.All distortion that those of ordinary skill in the art can directly derive or associate from disclosed content of the present invention, all should think protection scope of the present invention.
Claims (6)
1. the transformer oil storage of a piston structure, it comprises circular cabinet, cabinet side is respectively base plate and flange shrouding, cabinet is provided with support, cabinet is connected with inflow pipeline, it is characterized in that being provided with suitable piston in cabinet, near in the cabinet of base plate, is connected with fixed head, fixed head and piston space are connected with spring, and the surface of piston and cabinet inner wall surface are provided with the sealant of sulfuration one.
2. the transformer oil storage of a kind of piston structure according to claim 1, is characterized in that above-mentioned sealant is acrylonitrile-butadiene rubber sealant.
3. the transformer oil storage of a kind of piston structure according to claim 1 and 2, it is characterized in that the cabinet inwall between flange shrouding and inflow pipeline is provided with guide vane end stop, the sealant of above-mentioned sulfuration one is located in the cabinet inner wall surface between flange shrouding and guide vane end stop.
4. the transformer oil storage of a kind of piston structure according to claim 1 and 2, is characterized in that flange shrouding is provided with oil level indicator scale.
5. the transformer oil storage of a kind of piston structure according to claim 4, is characterized in that oil level indicator scale is stay-supported oil level indicator scale, and stay-supported oil level indicator scale is connected with piston by bracing wire.
6. the transformer oil storage of a kind of piston structure according to claim 1 and 2, is characterized in that cabinet is provided with oil extraction assembly, and oil extraction assembly comprises outage and stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310683166.3A CN103680834B (en) | 2013-12-10 | 2013-12-10 | A kind of transformer oil storage of piston structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310683166.3A CN103680834B (en) | 2013-12-10 | 2013-12-10 | A kind of transformer oil storage of piston structure |
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| Publication Number | Publication Date |
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| CN103680834A true CN103680834A (en) | 2014-03-26 |
| CN103680834B CN103680834B (en) | 2016-02-03 |
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| CN201310683166.3A Active CN103680834B (en) | 2013-12-10 | 2013-12-10 | A kind of transformer oil storage of piston structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373722A (en) * | 2015-07-22 | 2017-02-01 | 西门子公司 | Containing device for containing insulation liquid |
| CN109374348A (en) * | 2018-09-17 | 2019-02-22 | 国网天津市电力公司 | Load switch of transformer auto oil-fetching device |
| CN114203400A (en) * | 2021-12-09 | 2022-03-18 | 江苏燎源变压器有限公司 | Intelligent oil supplementing device for transformer |
| CN117577418A (en) * | 2024-01-17 | 2024-02-20 | 四川众信通用电力有限公司 | Transformer with high security |
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| GB1072528A (en) * | 1965-04-07 | 1967-06-21 | Dryvent Ltd | Improvements in or relating to air drying apparatus |
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| CN101572169A (en) * | 2009-03-05 | 2009-11-04 | 上海德力西集团有限公司 | Sealing structure for transformer oil tank and sealing technical method thereof |
| CN201540800U (en) * | 2009-11-09 | 2010-08-04 | 西安向阳航天材料股份有限公司 | Fuel tank sealing device of transformer |
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| CN203631250U (en) * | 2013-12-10 | 2014-06-04 | 江山市海维输变电科技有限公司 | Transformer oil conservator of piston structure |
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2013
- 2013-12-10 CN CN201310683166.3A patent/CN103680834B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1072528A (en) * | 1965-04-07 | 1967-06-21 | Dryvent Ltd | Improvements in or relating to air drying apparatus |
| CN201007938Y (en) * | 2006-08-28 | 2008-01-16 | 杨焕金 | Internal convex type metal ripple sealing oil conservator |
| CN101572169A (en) * | 2009-03-05 | 2009-11-04 | 上海德力西集团有限公司 | Sealing structure for transformer oil tank and sealing technical method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373722A (en) * | 2015-07-22 | 2017-02-01 | 西门子公司 | Containing device for containing insulation liquid |
| CN106373722B (en) * | 2015-07-22 | 2019-02-01 | 西门子公司 | Storing apparatus for housing insulation liquid |
| CN109374348A (en) * | 2018-09-17 | 2019-02-22 | 国网天津市电力公司 | Load switch of transformer auto oil-fetching device |
| CN109374348B (en) * | 2018-09-17 | 2021-05-18 | 国网天津市电力公司 | Automatic oil taking device for on-load switch of transformer |
| CN114203400A (en) * | 2021-12-09 | 2022-03-18 | 江苏燎源变压器有限公司 | Intelligent oil supplementing device for transformer |
| CN114203400B (en) * | 2021-12-09 | 2024-01-30 | 江苏燎源变压器有限公司 | Intelligent oil supplementing device for transformer |
| CN117577418A (en) * | 2024-01-17 | 2024-02-20 | 四川众信通用电力有限公司 | Transformer with high security |
| CN117577418B (en) * | 2024-01-17 | 2024-04-09 | 四川众信通用电力有限公司 | Transformer with high security |
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| Publication number | Publication date |
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| CN103680834B (en) | 2016-02-03 |
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Address after: The 324100 Ring Road in Zhejiang province Jiangshan City 24 building 3 floor Applicant after: JIANGSHAN HAIWEI TECHNOLOGY CO., LTD. Address before: 324100, three, Jiangdong District, Jiangshan, 121, Zhejiang Applicant before: JIANGSHAN HAIWEI TRANSMISSION AND TRANSFORMATION TECHNOLOGY CO., LTD. |
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Effective date of registration: 20161013 Address after: 324102 Zhejiang province Jiangshan Huatong Road Economic Development Zone No. 17 Patentee after: Shenda Electric Group Co.,Ltd. Address before: Floor 24, building 3, West Ring Road, Jiangshan, Zhejiang Patentee before: JIANGSHAN HAIWEI TECHNOLOGY CO., LTD. |