CN102568762A - Expansion protecting device - Google Patents
Expansion protecting device Download PDFInfo
- Publication number
- CN102568762A CN102568762A CN2010105757950A CN201010575795A CN102568762A CN 102568762 A CN102568762 A CN 102568762A CN 2010105757950 A CN2010105757950 A CN 2010105757950A CN 201010575795 A CN201010575795 A CN 201010575795A CN 102568762 A CN102568762 A CN 102568762A
- Authority
- CN
- China
- Prior art keywords
- oil
- elastic body
- expansion
- oil tank
- elastomer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Transformer Cooling (AREA)
Abstract
The invention discloses an expansion protecting device, which belongs to the technical field of expansion protecting devices of electric oil storage equipment. The expansion protecting device comprises an elastic body communicated with an inner cavity of an electric equipment sealed oil tank, and a pressure block is arranged on the upper surface of the elastic body. When in use of the expansion protecting device, oil is filled into the oil tank and the elastic body, the pressure block presses the elastic body, so that oil in the elastic body and the oil tank is applied with positive pressure, and leakage of external rainwater, air and the like to the oil tank is avoided. When the electric equipment is heated during running, the temperature of oil in the oil tank rises and the oil expands. Since the elastic body is communicated with the inner cavity of the sealed oil tank, the elastic body can expand along with expansion of the oil, and deformation of the oil tank is avoided effectively. Meanwhile, positive pressure in the oil tank can be controlled by utilizing different elastic bodies and pressure blocks, and the service life of the electric equipment can be prolonged. The expansion protecting device can be used on electric equipment with oil, such as transformers, reactors, mutual inductors and the like.
Description
Technical field
The present invention relates to a kind of protective device of oil storage electric equipment.
Background technology
Middle-size and small-size oil-filled transformer is in running, because the loss of self heating, the volume of oil changes along with variation of temperature.For the transformer of band oil conservator, the variation of this oil volume is compensated by oil conservator, can not cause the rising of tank internal pressure.Shortcoming is: oil directly contacts with air, and the long-time running meeting causes the insulation characterisitic of oil to descend, even owing to the cold icepro of water in air steam and progressively accumulation, causes the interruption of service of transformer.
Full-sealed transformer is isolated oil and air fully, has solved the oily problem that directly contacts with air.General way is the cancellation oil conservator at present, and the complete strain by fuel tank and fin of expanding with heat and contract with cold of oil solves.The problem of finding is: because fuel tank and fin material, also owing to multiple factors such as design and manufacturing process, the elasticity excursion of fuel tank and radiator is uncontrollable in the scope of regulation, also can't effectively measure.It is commonplace that the situation of fuel tank gross distortion, protective device oil spout takes place in big full-sealed transformer, load high in ambient temperature in the practical application, has a strong impact on the safe operation of transformer; Above-mentioned defective not only occurs in transformer, in the electrical installation of some other sealing oil storage, also can occur.
Summary of the invention
The purpose of this invention is to provide a kind of expansion protective device, can make the leakproof fuel cell of the electric equipment shape that remains unchanged, fuel tank is stressed controlled.
Be to realize above-mentioned purpose, the present invention be provided with one with the elastomer of electrical equipment leakproof fuel cell intracavity inter-connection, elastomeric upper surface is provided with briquetting.
When the present invention uses, in fuel tank and elastomer, all charged into oil, briquetting is pushed down elastomer, makes the oil in elastomer and the fuel tank all receive normal pressure, has avoided seepage in fuel tank such as extraneous rainwater, air; At the electrical work adstante febre, the oil temperature in the fuel tank rises, volumetric expansion, because the leakproof fuel cell inner chamber is connected with elastomer, elastomer can expand with the expansion of oil volume, has effectively avoided the dilatancy of fuel tank; Simultaneously, use different elasticity body and briquetting, can control the size of the normal pressure in the fuel tank.It is thus clear that the present invention can make the leakproof fuel cell of the electric equipment shape that remains unchanged, fuel tank is stressed controlled, long service life.The present invention can use on electric equipments such as the transformer of band oil, reactor, instrument transformer.
Said elastomer can have multiple structure, as is shapes such as bellow-shaped, pancake, cylindrical, sphere, all can obtain identical or akin technique effect.
For the protection elastomer, can elastomer and briquetting be arranged in the housing.Above-mentioned housing both can be arranged on the upside of fuel tank, and it is sunk in the fuel tank.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is another structural representation of the present invention;
Wherein, 1 fuel tank, 2 housings, 3 elastomers, 4 briquettings, 5 sleeve pipes.
Embodiment
Like Fig. 1, for a kind of use with the expansion protective device on the oily transformer, comprise and the elastomer 3 of the intracavity inter-connection of transformer leakproof fuel cell 1 that the upper surface of elastomer 3 is provided with briquetting 4; Said elastomer 3 is bellow-shaped, and elastomer 3 is arranged in the housing 2 with briquetting, and housing 2 is arranged on the upside of fuel tank 1.
The present invention is not limited to the foregoing description, and said housing 2 also sinks in the fuel tank 1 (as shown in Figure 2); Described elastomer also can be shapes such as pancake, cylindrical, sphere.During use; In fuel tank 1 and elastomer 3, all charged into oil, briquetting 4 is pushed down elastomer 3, makes elastomer 3 and fuel tank 1 interior oil all receive normal pressure; Avoided seepage in fuel tank such as extraneous rainwater, air, can make simultaneously and maintain oil in the sleeve pipe 5 that links to each other with oil tank of transformer; At the electrical work adstante febre, the oil temperature in the fuel tank rises, volumetric expansion, because the inner chamber of leakproof fuel cell 1 is connected with elastomer 3, elastomer 3 can expand with the expansion of oil volume, has effectively avoided the dilatancy of fuel tank 1; Use different elasticity body 3 and briquetting 4, can control the size of the normal pressure in the fuel tank.
Claims (8)
1. expansion protective device is characterized in that: comprise one with the elastomer of electrical equipment leakproof fuel cell intracavity inter-connection, elastomeric upper surface is provided with briquetting.
2. expansion protective device according to claim 1 is characterized in that: said elastomer is bellow-shaped.
3. expansion protective device according to claim 1 is characterized in that: said elastomer is pancake.
4. expansion protective device according to claim 1 is characterized in that: said elastomer is cylindrical.
5. expansion protective device according to claim 1 is characterized in that: said elastomer is spherical in shape.
6. according to any described expansion protective device of claim 1-5, it is characterized in that: said elastomer and briquetting are arranged in the housing.
7. expansion protective device according to claim 6 is characterized in that: said housing is arranged on the upside of fuel tank.
8. expansion protective device according to claim 6 is characterized in that: said housing sinks in the fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105757950A CN102568762A (en) | 2010-12-07 | 2010-12-07 | Expansion protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105757950A CN102568762A (en) | 2010-12-07 | 2010-12-07 | Expansion protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102568762A true CN102568762A (en) | 2012-07-11 |
Family
ID=46413941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105757950A Pending CN102568762A (en) | 2010-12-07 | 2010-12-07 | Expansion protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102568762A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675000A (en) * | 2013-12-05 | 2014-03-26 | 常州东芝变压器有限公司 | Container for material and oil compatibility tests |
| WO2015196972A1 (en) * | 2014-06-23 | 2015-12-30 | 上海联影医疗科技有限公司 | Insulation method and device for high-voltage generator oil tank |
| CN106373722A (en) * | 2015-07-22 | 2017-02-01 | 西门子公司 | Containing device for containing insulation liquid |
| CN108026941A (en) * | 2015-09-25 | 2018-05-11 | 三菱重工业株式会社 | Inclosure method of the service tank and working oil of electricity generation system to the service tank |
| WO2020147083A1 (en) * | 2019-01-17 | 2020-07-23 | 青岛卡奥电力设备有限公司 | Oil-immersed distribution transformer |
| CN111540566A (en) * | 2020-05-13 | 2020-08-14 | 蔡金明 | Oil leakage prevention transformer |
-
2010
- 2010-12-07 CN CN2010105757950A patent/CN102568762A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675000A (en) * | 2013-12-05 | 2014-03-26 | 常州东芝变压器有限公司 | Container for material and oil compatibility tests |
| US10340075B2 (en) | 2014-06-23 | 2019-07-02 | Shanghai United Imaging Healthcare Co., Ltd. | Method and device for insulation of high-voltage generator tank |
| WO2015196972A1 (en) * | 2014-06-23 | 2015-12-30 | 上海联影医疗科技有限公司 | Insulation method and device for high-voltage generator oil tank |
| US11923127B2 (en) | 2014-06-23 | 2024-03-05 | Shanghai United Imaging Healthcare Co., Ltd. | Method and device for insulation of high-voltage generator tank |
| US20170148565A1 (en) * | 2014-06-23 | 2017-05-25 | Shanghai United Imaging Healthcare Co., Ltd. | Method and device for insulation of high-voltage generator tank |
| US9899142B2 (en) | 2014-06-23 | 2018-02-20 | Shanghai United Imaging Healthcare Co., Ltd | Method and device for insulation of high-voltage generator tank |
| US10825603B2 (en) | 2014-06-23 | 2020-11-03 | Shanghai United Imaging Healthcare Co., Ltd. | Method and device for insulation of high-voltage generator tank |
| CN106373722B (en) * | 2015-07-22 | 2019-02-01 | 西门子公司 | Storing apparatus for housing insulation liquid |
| CN106373722A (en) * | 2015-07-22 | 2017-02-01 | 西门子公司 | Containing device for containing insulation liquid |
| CN108026941B (en) * | 2015-09-25 | 2020-01-21 | 三菱重工业株式会社 | Working oil tank for power generation system and method for sealing working oil in working oil tank |
| US10724551B2 (en) | 2015-09-25 | 2020-07-28 | Mitsubishi Heavy Industries, Ltd. | Hydraulic oil tank for power generation system and method for sealing hydraulic oil in said hydraulic oil tank |
| CN108026941A (en) * | 2015-09-25 | 2018-05-11 | 三菱重工业株式会社 | Inclosure method of the service tank and working oil of electricity generation system to the service tank |
| WO2020147083A1 (en) * | 2019-01-17 | 2020-07-23 | 青岛卡奥电力设备有限公司 | Oil-immersed distribution transformer |
| CN111540566A (en) * | 2020-05-13 | 2020-08-14 | 蔡金明 | Oil leakage prevention transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102568762A (en) | Expansion protecting device | |
| CN103188904A (en) | Pressure compensator for a subsea device | |
| CN105336723B (en) | Semiconductor module, semiconductor module block assembly and semiconductor device | |
| CN202183578U (en) | Telescopic joint for pressure balancing of GIS (geographic information system) busbar | |
| CN102679063A (en) | High-performance electrical isolation flange device resisting high temperature and high pressure | |
| CN202095124U (en) | Novel corrugated pipe expansion tank device for pressure ring of submerged arc furnace | |
| CN205789614U (en) | A kind of side button and electronic equipment | |
| CN203950643U (en) | Oil-filled transformer conservator | |
| KR101142560B1 (en) | A housing of transformer pressed up cooling plate | |
| CN105405649B (en) | A kind of waterproof capacitor | |
| CN203442119U (en) | Sealing gasket and pole top switch comprising sealing gasket | |
| CN207039138U (en) | A kind of shell compensation device | |
| CN203695715U (en) | Metal bellows hydro-forming device with internal thread fit sealing structure | |
| US8550432B2 (en) | Stopcock | |
| CN103680931A (en) | Automatic-heat-dissipation water circulation low-voltage capacitor | |
| CN201443610U (en) | Sealing device between valve body and upper valve cover of polytetrafluoroethylene pneumatic control valve | |
| CN208921359U (en) | SF6 gas leakage defect experiment simulator | |
| CN104006179B (en) | A kind of manufacturing process of sealing configuration of four sealing aviation fuel valves | |
| CN202940127U (en) | Internal adjustment compensator for oil-containing appliance | |
| CN202708184U (en) | Floating diaphragm type electromagnetic valve | |
| CN206210443U (en) | Height radiating composite cable | |
| CN206685434U (en) | A kind of combination plate for lithium battery | |
| CN102903516B (en) | A kind of for mode insulating oil compensator in oil-content appliance | |
| CN202049837U (en) | Oil tank for transformer | |
| CN201438395U (en) | Cable degassing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |