CN103680834B - A kind of transformer oil storage of piston structure - Google Patents
A kind of transformer oil storage of piston structure Download PDFInfo
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- CN103680834B CN103680834B CN201310683166.3A CN201310683166A CN103680834B CN 103680834 B CN103680834 B CN 103680834B CN 201310683166 A CN201310683166 A CN 201310683166A CN 103680834 B CN103680834 B CN 103680834B
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Abstract
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, cabinet is connected with inflow pipeline, is provided with suitable piston in cabinet, in the cabinet of base plate, be 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.The present invention adopts the technical scheme of piston structure, and structure is simple, cheap, and compensation volume is large, also without the need to configuring dehydrating breather, achieving the hermetically sealed of transformer, protecting the oil of transformer, can effectively delay transformer oil deterioration.
Description
Technical field
The present invention relates to field of power transformer manufacture, particularly relate to the oil conservator of transformer.
Background technology
The effect of the transformer oil of oil-immersed power transformer is, ensures the dielectric strength of transformer; Pass out the heat that transformer operationally produces because of loss; Slow down the aging of insulating material.At Transformer, due to the change of ambient temperature and transformer load, the oil temperature of transformer oil is also changed within the specific limits, causes the volume of transformer oil also will change thus.Oil conservator is applicable to oil-immersed power transformer and other power equipment; its effect to be expanded due to the change of temperature in order to compensator transformer oil or shrinks the volume-variation of generation; playing an important role to the normal operation of protection transformer, is the requisite significant components of transformer.Oil conservator is the large class of point open type and sealed type two usually, 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 rolled into by iron plate, and insulating oil is communicated with ambient atmosphere by the simple dehydrating breather of structure, due to dehydrating breather limited use, and insulating oil moisture-sensitive and oxidation during operation.For the isolating problem solving insulating oil and air develops rubber bellows 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 realized insulating oil, and capsule inner chamber is communicated with air by respirator.This kind of structure oil conservator tentatively achieves the isolation of insulating oil and air, decrease moisture absorption and the oxidation of insulating oil to a certain extent, alleviate the impact of oily cracking on equipment, but also expose following problem through use for many years: (1) is in transformer installation, operation and maintenance process, capsule breaks and leakage of oil because its mechanical strength not easily produces, and is not easily found after breakage.(2) material of elastomeric material own determines that it is easily aging, and the life-span is short, needs periodic replacement, and replacing installment work needs transformer to drain the oil and oiling, and workload is larger.(3) because capsule exists heat absorbent surface, have the condition forming condensation, therefore potential threat is very large, can not thoroughly deal with problems by installing dehydrating breather additional.(4) easily occur during capsule Hypometria breathing blocking, 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 made up 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, elastomeric material Problems existing 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 exceedes middle part, and easily sucks air and moisture when oil level is 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, therefore pointing accuracy is lower, the false oil level of normal appearance.
Metal corrugated oil conservater is full seal type oil conservator of new generation, adopt advanced stainless steel ripple compensation technique, while realizing insulating oil volume compensation, more reliably can guarantee 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 arrange dehydrating breather, structure is simple, 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 suitable piston in cabinet, 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 by support installing on oil tank of transformer, be connected with in oil tank of transformer by inflow pipeline, transformer oil enters in the cabinet of base plate and piston space, is realized the breathing of transformer oil by the movement of piston in cabinet.The sealant of sulfuration one adds 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 dehydrating breather additional.Transformer, by completely isolated with outside air, really achieves the hermetically sealed of transformer, protects the oil of transformer.Its structure is compared with existing diaphragm type storage oil cabinet in addition, and structure is simple, 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, 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.Cabinet inwall between flange shrouding and inflow pipeline is provided with guide vane end stop, and 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 realize 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, structure is simple, cheap; compensation volume is large, also without the need to configuring dehydrating breather, achieves 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, 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 outage, stopper and the sealing ring between outage and stopper, is provided with suitable piston 4 in cabinet 1, base plate 11 is connected with fixed head 5, between fixed head 5 and piston 4, is connected with spring 6.Cabinet 1 inwall between flange shrouding 12 and inflow pipeline 3 is provided with guide vane end stop 8, and the cabinet inner wall surface between flange shrouding 12 and guide vane end stop 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 adds 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, be connected with in oil tank of transformer by inflow pipeline 3, transformer oil enters in the cabinet 1 between base plate 11 and piston 4, is realized the breathing of transformer oil by the movement of piston 4 in cabinet 1.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.Cabinet 1 inwall between flange shrouding 12 and inflow pipeline 3 is provided with guide vane end stop 8, and piston 4 can move in cabinet 1 inner chamber between flange shrouding 12 and guide vane end stop 8.Cabinet 1 inwall and piston 4 are provided with the sealant 7 of sulfuration one on the surface, and the sealant 7 of sulfuration one adds the sealing property between piston 4 and cabinet 1 inwall.Owing to being all-sealed structure in the cabinet 1 between base plate 11 and piston 4, do not need to install dehydrating breather additional.Transformer, by completely isolated with outside air, really achieves the hermetically sealed of transformer, protects the oil of transformer.Its structure is compared with existing diaphragm type storage oil cabinet in addition, and structure is simple, low cost of manufacture.
Finally, it is also to be noted that what enumerate above is only specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be had.All distortion that those of ordinary skill in the art can directly derive from disclosed content of the present invention or associate, 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, in the cabinet of base plate, be 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, it is characterized in that oil level indicator scale is stay-supported oil level indicator scale, 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, it is characterized in that cabinet is provided with oil extraction assembly, 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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN103680834A CN103680834A (en) | 2014-03-26 |
| CN103680834B true 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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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3121826B1 (en) * | 2015-07-22 | 2020-08-26 | Siemens Aktiengesellschaft | Reception device for receiving insulating fluid |
| 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 |
| 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 |
| 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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| 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 |
| 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 |
| CN202352455U (en) * | 2011-12-20 | 2012-07-25 | 沈阳天工热电设备有限公司 | Intelligent corrugated oil storage tank |
| 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 |
-
2013
- 2013-12-10 CN CN201310683166.3A patent/CN103680834B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN202352455U (en) * | 2011-12-20 | 2012-07-25 | 沈阳天工热电设备有限公司 | Intelligent corrugated oil storage tank |
| 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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| CN103680834A (en) | 2014-03-26 |
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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. |