CN203631250U - Transformer oil conservator of piston structure - Google Patents
Transformer oil conservator of piston structure Download PDFInfo
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- CN203631250U CN203631250U CN201320830435.XU CN201320830435U CN203631250U CN 203631250 U CN203631250 U CN 203631250U CN 201320830435 U CN201320830435 U CN 201320830435U CN 203631250 U CN203631250 U CN 203631250U
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- cabinet
- oil
- piston
- transformer
- transformer oil
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Abstract
A transformer oil conservator of a piston structure comprises a round conservator body, a bottom plate and a flange sealing plate are arranged on the side faces of the conservator respectively, a support is arranged on the conservator body, the conservator body is connected with an oil inlet pipeline, a matched piston is arranged in the conservator body, a fixing plate is connected in the position, close to the bottom plate, of the conservator body, and a spring is connected between the fixing plate and the piston. According to the technical scheme, the transformer oil conservator of the piston structure is simple in structure, low in manufacturing cost and large in compensation volume, a moisture absorber does not need to be arranged, a transformer can be totally sealed, the quality of oil of the transformer is kept, and ageing of oil of the transformer can be effectively delayed.
Description
Technical field
The utility model relates to power transformer and manufactures field, relates 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 in the time of 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 point point 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 when operation.For the isolating problem that solves insulating oil and atmosphere develops 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 are reduced 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 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, need periodic replacement, and change installment work need transformer to drain the oil and oiling, workload is larger.(3) because capsule exists heat absorption surface, have the condition that forms condensation, therefore potential threat is very large, can not thoroughly deal with problems by installing dehydrating breather additional.(4) be prone to when capsule Hypometria to breathe and stop up, cause the accident.(5) because rubber bag tank mechanical strength is low, in the time that 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, 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 exceedes 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 produces distortion, and therefore 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, in 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.
Utility model content
The purpose of this utility model is in order to solve above-mentioned the deficiencies in the prior art, for above-mentioned the deficiencies in the prior art, the utility model 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 utility model solves adopts is:
For achieving the above object, the technical solution adopted in the utility model 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, be connected with fixed head near in the cabinet of base plate, fixed head and piston space are connected with spring.
When use, the utility model is arranged on above oil tank of transformer by support, is connected with in oil tank of transformer by inflow pipeline, 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.Piston, under the active force of transformer oil and spring, moves left and right in cabinet, and in the time of transformer oil heat expansion, oil flows to oil conservator by fuel tank; In the time of 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, simple in structure in addition, low cost of manufacture.
When concrete enforcement, the surface of above-mentioned piston and cabinet inner wall surface are provided with the sealant of sulfuration one.The sealant of sulfuration one has increased the sealing property between piston and cabinet inwall.
When 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.
When 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.
When 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.
When 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.
When concrete enforcement, cabinet is provided with oil extraction assembly, and oil extraction assembly comprises outage and stopper.
The beneficial effects of the utility model are: the utility model 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, utility model is further illustrated.
Fig. 1 is the structural representation of the utility model embodiment.
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, between fixed head 5 and piston 4, be 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 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.
When use, the utility model 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, 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 in the time of transformer oil heat expansion, oil flows to oil conservator by fuel tank; In the time of transformer oil shrinkage, oil flows to fuel tank by oil conservator, and compensation volume is large.On cabinet 1 inwall between flange shrouding 12 and inflow pipeline 3, be provided with guide vane end stop 8, 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 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.Owing to being all-sealed structure in the cabinet 1 between base plate 11 and piston 4, 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, simple in structure, low cost of manufacture.
Finally, it is also to be noted that, what more than enumerate is only specific embodiment of the utility model.Obviously, the utility model is not limited 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 utility model, all should think protection range of the present utility model.
Claims (7)
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, be connected with fixed head near in the cabinet of base plate, fixed head and piston space are connected with spring.
2. the transformer oil storage of a kind of piston structure according to claim 1, is characterized in that the surface of above-mentioned piston and cabinet inner wall surface are provided with the sealant that vulcanizes one.
3. the transformer oil storage of a kind of piston structure according to claim 2, is characterized in that above-mentioned sealant is acrylonitrile-butadiene rubber sealant.
4. according to the transformer oil storage of a kind of piston structure described in claim 2 or 3, 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.
5. according to the transformer oil storage of a kind of piston structure described in claim 1,2 or 3, it is characterized in that flange shrouding is provided with oil level indicator scale.
6. the transformer oil storage of a kind of piston structure according to claim 5, 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.
7. according to the transformer oil storage of a kind of piston structure described in claim 1,2 or 3, 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 |
|---|---|---|---|
| CN201320830435.XU CN203631250U (en) | 2013-12-10 | 2013-12-10 | Transformer oil conservator of piston structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320830435.XU CN203631250U (en) | 2013-12-10 | 2013-12-10 | Transformer oil conservator of piston structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203631250U true CN203631250U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320830435.XU Expired - Fee Related CN203631250U (en) | 2013-12-10 | 2013-12-10 | Transformer oil conservator of piston structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203631250U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680834A (en) * | 2013-12-10 | 2014-03-26 | 江山市海维输变电科技有限公司 | Transformer oil conservator with piston structure |
| CN105742028A (en) * | 2016-05-18 | 2016-07-06 | 仲炳华 | Improved anti-oxidation oil conservator |
-
2013
- 2013-12-10 CN CN201320830435.XU patent/CN203631250U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680834A (en) * | 2013-12-10 | 2014-03-26 | 江山市海维输变电科技有限公司 | Transformer oil conservator with piston structure |
| CN103680834B (en) * | 2013-12-10 | 2016-02-03 | 江山海维科技有限公司 | A kind of transformer oil storage of piston structure |
| CN105742028A (en) * | 2016-05-18 | 2016-07-06 | 仲炳华 | Improved anti-oxidation oil conservator |
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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 |
Granted publication date: 20140604 Termination date: 20151210 |
|
| EXPY | Termination of patent right or utility model |