CN203573783U - Dry extraction type oil immersed transformer - Google Patents
Dry extraction type oil immersed transformer Download PDFInfo
- Publication number
- CN203573783U CN203573783U CN201320793229.6U CN201320793229U CN203573783U CN 203573783 U CN203573783 U CN 203573783U CN 201320793229 U CN201320793229 U CN 201320793229U CN 203573783 U CN203573783 U CN 203573783U
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- CN
- China
- Prior art keywords
- transformer
- oil
- side extraction
- low
- air cushion
- 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.)
- Expired - Lifetime
Links
- 238000000605 extraction Methods 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 4
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 239000002828 fuel tank Substances 0.000 description 3
- 239000003305 oil spill Substances 0.000 description 3
- 235000015927 pasta Nutrition 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model discloses a dry extraction type oil immersed transformer, comprising a transformer oil tank (1), a transformer body (2), a high-voltage side extraction sleeve (3) and a low-voltage side extraction sleeve (4), wherein the transformer oil tank (1) is filled with transfer oil; the transformer body (2) is arranged in the transformer oil of the transformer oil tank (1); the transformer body (2) comprises a high voltage coil and a low voltage coil inside; the high-voltage side extraction sleeve (3) and the low-voltage side extraction sleeve (4) are respectively connected with the high voltage coil and the low voltage coil through wires; an air cushion is arranged between an upper cover (11) of the transformer oil tank (1) and the upper surface of the transformer oil; the high-voltage side extraction sleeve (3) and the low-voltage side extraction sleeve (4) are both dry sleeves. The transformer has the advantage of simple structure, simple design, high safety coefficient, little maintenance amount, low manufacturing cost and the like.
Description
Technical field
The utility model relates to transformer, the oil-immersed type transformer that provides especially a kind of dry type to draw.
Background technology
Oil-filled transformer is one of visual plant in industrial and mining enterprises and civil buildings power supply-distribution system, and it mainly relies on transformer oil to cool as coolant.According to the type of cooling of oil-filled transformer, can be divided into oil, oil, oil immersed water cool, forced oil-circulation etc.Because existing oil-filled transformer requires pasta very high, need to utilize oil conservator or tubular type oil meter to raise oil level and push down pasta, so that transformer oil is full of in oil-filled bushing, product integral sealing requires very high, and oil pressure is very large, and maintenance is large, very easily occur that oil-aeroseal face lost efficacy, contaminated environment, even causes oil spill go out and cause failure of insulation, causes bushing electric discharge on fire.According to statistics, distribution transformer operation fire incident more than 90%, is because product oil seepage causes.
Therefore, existing oil-filled transformer exists cost of manufacture high, complex structure, and how the problem such as coefficient of safety is low, difficult in maintenance, carry out architecture advances to existing oil-filled transformer, to address the above problem, becomes people's problem demanding prompt solution.
utility model content
Given this, the oil-immersed type transformer that provides a kind of dry type to draw is provided the purpose of this utility model, high at least to solve the cost of manufacture that oil-immersed type transformer existed in the past, complex structure, the problem such as coefficient of safety is low, difficult in maintenance.
The oil-immersed type transformer that the dry type that the utility model provides is drawn, comprise the oil tank of transformer 1 that is filled with transformer oil, transformer body 2 and high-pressure side extraction tube 3 and low-pressure side extraction tube 4, described transformer body 2 is placed in the transformer oil of oil tank of transformer 1, in described transformer body 2, include high-tension coil and low-voltage coil, described high-pressure side extraction tube 3 is connected with low-voltage coil with high-tension coil by wire respectively with low-pressure side extraction tube 4, it is characterized in that: between the upper cover 11 of described oil tank of transformer 1 and the upper surface of transformer oil, be provided with air cushion 12, and described high-pressure side extraction tube 3 and low-pressure side extraction tube 4 are dry sleeve.
Preferably, the height of described air cushion 12 is 80 ~ 400mm.
Further preferably, described air cushion 12 is non-flammable gas air cushion.
Further preferably, described air cushion 12 is air cushion or nitrogen air cushion.
Further preferably, described high-pressure side extraction tube 3 and low-pressure side extraction tube 4 are non-capacitive dry sleeve; Comprise conducting rod 5, be sleeved on the insulator 6 on conducting rod 5, described conducting rod 5 comprises conducting rod main body 51 and is fixedly connected on the connector 52 at conducting rod main body 51 two ends; And the material of described connector 52 is different from the material of conducting rod main body 51.
Further preferably, described conducting rod main body 51 is aluminium bar, and described connector 52 is brass rod.
Further preferably, the outside of described oil tank of transformer 1 is communicated with radiator 7.
Further preferably, described radiator 7 is Expansion radiator.
Further preferably, on described oil tank of transformer 1, be provided with inspection hole 13, for observing the height change of oil tank of transformer 1 interior transformer oil.
The oil-immersed type transformer that a kind of dry type that the utility model provides is drawn, traditional filling type sleeve pipe is improved to dry sleeve, this dry sleeve just can complete the introducing of voltage and draw without oil-filled, therefore, it is a series of for raising the equipment of pasta that transformer in the utility model can save oil conservator, tubular type oil meter etc., make transformer global design succinct, with low cost.
Meanwhile, coordinate this dry sleeve, between the upper cover of oil tank of transformer and the upper surface of transformer oil, be provided with air cushion, the design of this air cushion has the following advantages:
1, make transformer oil surface be positioned at next take the altitude of transformer oil box cover, isolated transformer oil and extraneous contacting, prevent that transformer upper cover place from oil spill occurring, and the cleannes that transformer both can be high are moved, and can greatly improve again the coefficient of safety of this transformer.
2, due to the design of air cushion, make not have traditional oil-aeroseal face in transformer, the maintenance of product is minimum.
3, can offset the oily bulking effect producing when part heats up due to transformer oil, extend the useful life of transformer.
4, by air cushion, can effectively cushion transformer oil and transmit to the heat of fuel tank upper cover, reduce the temperature rise degree of transformer oil box cover.
5, air cushion has certain fire retardation, improves the fail safe of transformer.
6, air cushion effectively stops transformer oil to contact with the sealing gasket in transformer oil box cover, and not only maintenance is few, and maintains easily.
Accompanying drawing explanation
Fig. 1 is the oil-immersed type transformer structural representation that dry type is drawn;
Fig. 2 is the structural representation of non-capacitive dry sleeve;
Fig. 3 is the structural representation of conducting rod.
Embodiment
Be illustrated in figure 1 the oil-immersed type transformer that a kind of dry type is drawn, this transformer comprises the oil tank of transformer 1 that is filled with transformer oil, in oil tank of transformer 1, be provided with the transformer body 2 that parts such as comprising high-tension coil and low-voltage coil form, and these transformer body 2 integral body are all immersed in transformer oil, between the upper cover 11 of oil tank of transformer 1 and the upper surface of transformer oil, be provided with air cushion 12, wherein, high-tension coil is connected with low-pressure side extraction tube 4 with high-pressure side extraction tube 3 by wire respectively with low-voltage coil.Due to transformer body 2 with traditional transformer body without improvements, therefore, in Fig. 1, the concrete structure of transformer body 2 is not drawn.
This oil-filled transformer is the leading-out terminal as high and low pressure by dry sleeve, upper cover at oil tank of transformer is arranged with air cushion simultaneously, by the cooperation of dry sleeve and air cushion, can effectively solve the high oil temperature problem of oil-filled transformer requirement in the past, saved and for transformer, raised in a large number the equipment of oil level, made the overall structure of transformer simple, design is succinct, attractive in appearance, cost of manufacture is low; Can effectively avoid again contacting of transformer oil in oil tank of transformer and the external world and even fuel tank upper cover, thoroughly eliminated the security hidden trouble causing due to transformer oil box cover generation oil spill, make transformer reduce maintenance with high cleannes operation simultaneously, save manpower.
In long-term test, find, when the air cushion in oil tank of transformer 1 12 is designed to 80 ~ 400mm height, the operational effect of transformer is splendid, can not only reach the object that transformer oil is isolated from the outside, and simultaneously can also be the most effectively the oily bulking effect in oil tank of transformer be carried out to partial offset.
Wherein, air cushion 12 can select arbitrary gas to fill, non-flammable gas preferably, and more preferably air or nitrogen, it is not only not easy to occur chemical reaction, and has certain fire retardation, cheap, easily obtains.
High-pressure side extraction tube 3 in this transformer and low-pressure side extraction tube 4 can be selected any without the oil-filled dry sleeve that can complete voltage introducing and draw, and as being more preferably selected as non-capacitive sleeve pipe, as shown in Figure 2, this sleeve pipe comprises conducting rod 5, be sleeved on the insulator 6 on conducting rod 5, as shown in Figure 3, described conducting rod 5 comprises conducting rod main body 51 and the connector 52 that is fixedly connected on conducting rod main body 51 two ends; And the material of described connector 52 is different from the material of conducting rod main body 51.
Wherein, conducting rod main body 51 can be designed to aluminium bar, connector 52 is designed to brass rod, and the conducting rod of the above-mentioned material conductive effect that links together is splendid.
Because this transformer is also to using transformer oil as coolant, in order to improve its cooling effect, increase load-bearing capacity, can be communicated with in the outside of oil tank of transformer 1 one or more radiators 7, cooling for transformer oil is carried out, preferred radiator 7 is Expansion radiator.In order further to improve its cooling effect, can also increase traditional air-cooled or water cooling plant.
In order to facilitate the observation of transformer oil surface in oil tank of transformer, can on oil tank of transformer 1, be provided with inspection hole 13, also can on transformer, set up low oil level warning device simultaneously, prevent that the problem of leaking from appearring in the fuel tank in transformer.
By reference to the accompanying drawings execution mode of the present utility model is described in detail above, but the utility model is not limited to above-mentioned execution mode, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (9)
1. the oil-immersed type transformer that dry type is drawn, comprise the oil tank of transformer (1) that is filled with transformer oil, transformer body (2) and high-pressure side extraction tube (3) and low-pressure side extraction tube (4), described transformer body (2) is placed in the transformer oil of oil tank of transformer (1), described transformer body includes high-tension coil and low-voltage coil in (2), described high-pressure side extraction tube (3) is connected with low-voltage coil with high-tension coil by wire respectively with low-pressure side extraction tube (4), it is characterized in that: between the upper cover (11) of described oil tank of transformer (1) and the upper surface of transformer oil, be provided with air cushion (12), and described high-pressure side extraction tube (3) and low-pressure side extraction tube (4) are dry sleeve.
2. the oil-immersed type transformer of drawing according to dry type described in claim 1, is characterized in that: the height of described air cushion (12) is 80 ~ 400mm.
3. the oil-immersed type transformer of drawing according to dry type described in claim 1, is characterized in that: described air cushion (12) is non-flammable gas air cushion.
4. the oil-immersed type transformer of drawing according to dry type described in claim 3, is characterized in that: described air cushion (12) is air cushion or nitrogen air cushion.
5. the oil-immersed type transformer of drawing according to dry type described in claim 1, is characterized in that: described high-pressure side extraction tube (3) and low-pressure side extraction tube (4) are non-capacitive dry sleeve; Comprise conducting rod (5), be sleeved on the insulator (6) on conducting rod (5), described conducting rod (5) comprises conducting rod main body (51) and is fixedly connected on the connector (52) at conducting rod main body (51) two ends; And the material of described connector (52) is different from the material of conducting rod main body (51).
6. the oil-immersed type transformer of drawing according to dry type described in claim 5, is characterized in that: described conducting rod main body (51) is aluminium bar, and described connector (52) is brass rod.
7. the oil-immersed type transformer of drawing according to dry type described in claim 1, is characterized in that: the outside of described oil tank of transformer (1) is communicated with radiator (7).
8. the oil-immersed type transformer of drawing according to dry type described in claim 7, is characterized in that: described radiator (7) is Expansion radiator.
9. the oil-immersed type transformer of drawing according to dry type described in claim 1, is characterized in that: on described oil tank of transformer (1), be provided with inspection hole (13), for observing the height change of the interior transformer oil of oil tank of transformer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793229.6U CN203573783U (en) | 2013-12-06 | 2013-12-06 | Dry extraction type oil immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793229.6U CN203573783U (en) | 2013-12-06 | 2013-12-06 | Dry extraction type oil immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203573783U true CN203573783U (en) | 2014-04-30 |
Family
ID=50541501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320793229.6U Expired - Lifetime CN203573783U (en) | 2013-12-06 | 2013-12-06 | Dry extraction type oil immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203573783U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680830A (en) * | 2013-12-06 | 2014-03-26 | 沈阳市敦敏电气有限责任公司 | Dry-type extraction oil immersed transformer |
| CN105405595A (en) * | 2015-11-18 | 2016-03-16 | 胡盛堂 | High-efficiency and energy-saving amorphous alloy transformer employing dry-type bushings led out for completely eradicating leakage |
-
2013
- 2013-12-06 CN CN201320793229.6U patent/CN203573783U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680830A (en) * | 2013-12-06 | 2014-03-26 | 沈阳市敦敏电气有限责任公司 | Dry-type extraction oil immersed transformer |
| CN105405595A (en) * | 2015-11-18 | 2016-03-16 | 胡盛堂 | High-efficiency and energy-saving amorphous alloy transformer employing dry-type bushings led out for completely eradicating leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |