CN205959723U - Transformer forces oil circulation guide structure - Google Patents
Transformer forces oil circulation guide structure Download PDFInfo
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- CN205959723U CN205959723U CN201620984619.5U CN201620984619U CN205959723U CN 205959723 U CN205959723 U CN 205959723U CN 201620984619 U CN201620984619 U CN 201620984619U CN 205959723 U CN205959723 U CN 205959723U
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- oil
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- winding
- circulation guide
- end ring
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Abstract
The utility model provides a transformer forces oil circulation guide structure. A transformer forces oil circulation guide structure, it includes winding and lower oil tank, be provided with the lower part layer board under the winding, being provided with by the first insulation end coils in the outside between winding and the lower part layer board and depending on the insulating end coils of inboard second, first insulation end coils and the insulating end coils of second are all formed by paper circle and a plurality of cushion bonding, first insulation end coils's paper circle is the rectangle insulated ring, the rectangle insulated ring is interior round foreign side structure, still be provided with insulating barrier between rectangle insulated ring and the lower oil tank, oil tank, lower part layer board, rectangle insulated ring and insulating barrier enclose into the lower part grease chamber jointly down, be provided with four axial oil inlets on the layer board of lower part. The utility model discloses a transformer forces oil circulation guide structure, the cancellation oil box increases the baffle, has increased the space of grease chamber, has increased the width of cloth and to the oil inlet, has reduced oil stream speed for oil stream speed and flow are more balanced, avoid oil stream area electric phenomena's emergence.
Description
Technical field
This utility model is related to transformer manufacture technology, more particularly to a kind of transformator forced oil-circulation guide frame.
Background technology
Forced oil-circulation Directed cooling be large-scale power transformer commonly use be a kind of efficient type of cooling, can be fast
Speed, effectively transformer station high-voltage side bus when the heat that produces be dispersed in cooling medium (air or water) by transformer oil.At present,
Conventional forced oil-circulation guide frame suffers from the drawback that:1st, due to being limited by space, axial fuel inlet mouth quantity typically can only
Setting 4, oil flow channel sectional area is little, in the case that transformer oil flow determines, enters the oil within winding and flows and uneven
Weighing apparatus, regional area oil flow rate is spent soon, is susceptible to oil flow electrification phenomenon on high voltage product, and harm is transformer insulated;Office
Portion region oil flow rate degree is too slow, and the cooling to winding is insufficient, causes hot spot temperature of winding too high.Simultaneously in transformer oil can
The minute impurities of energy presence, moisture also can be directly entered the high field intensity region within winding, cause shelf depreciation, endanger transformator
Insulation;2nd, the metallic particles such as welding slag that oil box can produce in welding, after the completion of welding, oil box forms the space of closing, needs to set
Put operation hand hole metallic foreign body is cleared up, waste time and energy and clear up difficulty.Under oil stream drives, the metallic foreign body of residual can
Can enter inside winding, the safe operation of harm transformator;3rd, after transformator long-play, transformer oil can aging, product
The harmful substances such as oil generation mud.Because flow velocity in oil box for the oil stream is very fast, it is difficult to deposit.And that being deposited at winding terminal circle
At a little slow dead angles of oil flow rate degree, cause stopping up of oil channel, be unfavorable for the radiating of winding.
Utility model content
For solving above-mentioned technical problem, this utility model provides a kind of transformator forced oil-circulation guide frame, oil stream
Prompt drop is low, oily flow equalization, does not produce oil flow electrification phenomenon, improves the safety within winding.
This utility model solves its technical problem and be employed technical scheme comprise that:A kind of transformator forced oil-circulation guiding knot
Structure, it includes winding and lower oil tank;Described winding is arranged with lower pallet;It is provided between described winding and lower pallet
The first insulating end ring in the outer part and the second insulating end ring in the inner part, described first insulating end ring and the second insulating end ring all by
Paper circle and multiple cushion block bonding form;The paper circle of described first insulating end ring is rectangular dielectric circle;Described rectangular dielectric circle is interior
The outer square structure of circle;It is additionally provided with insulating barrier between described rectangular dielectric circle and lower oil tank;Described lower oil tank, bottom support
Plate, rectangular dielectric circle and insulating barrier surround bottom grease chamber jointly;Four axial fuel inlet mouths are provided with lower pallet.
Described bottom grease chamber is provided with oil-feed supervisor in the side of lower oil tank.
Form oil ring between described first insulating end ring and the second insulating end ring.
The beneficial effects of the utility model:A kind of transformator forced oil-circulation guide frame of the present utility model, cancels oil
Box, increases dividing plate, increases the space of grease chamber, transformer oil is played with very big cushioning effect, makes micro- in transformer oil oil
The hazardous material deposition such as small impurities, moisture, greasy filth are in the bottom of grease chamber, it is to avoid enter deposition in winding and lead to shelf depreciation existing
As;Increased width to oil-in, so that the section of total oil inlet passage is increased, transformer oil can from whole circumference direction enter around
Group is internal, reduces oil flow rate degree so that oil flow rate degree and flow more equalize, it is to avoid the generation of oil flow electrification phenomenon.
Brief description
Fig. 1 is a kind of schematic diagram of transformator forced oil-circulation guide frame of embodiment;
Fig. 2 is a kind of schematic diagram of another angle of transformator forced oil-circulation guide frame of embodiment.
Specific embodiment
In order to deepen, to understanding of the present utility model, below in conjunction with drawings and Examples, this utility model to be done further
Describe in detail, this embodiment is only used for explaining this utility model, protection domain of the present utility model is not constituted and limits.
Embodiment
As depicted in figs. 1 and 2, a kind of transformator forced oil-circulation guide frame, it includes winding 1 and lower oil tank 2;Institute
State winding 1 and be arranged with lower pallet 3;It is provided with the first insulating end ring 41 in the outer part between described winding 1 and lower pallet 3
The second insulating end ring 42 in the inner part, described first insulating end ring 41 and the second insulating end ring 42 are all by paper circle and multiple cushion block
6 bondings form;The paper circle of described first insulating end ring 41 is rectangular dielectric circle 4;Described rectangular dielectric circle 4 is tied for inner circle foreign side
Structure;It is additionally provided with insulating barrier 5 between described rectangular dielectric circle 4 and lower oil tank 2;Described lower oil tank 2, lower pallet 3, square
Shape insulated ring 4 and insulating barrier 5 surround bottom grease chamber 7 jointly;Four axial fuel inlet mouths 9 are provided with lower pallet 3;Described
Cushion block 6 is circumferentially uniformly distributed, and forms width to oil-in 10 between two adjacent cushion blocks 6;Described bottom grease chamber 7 is in lower fuel-economizing
The side of case 2 is provided with oil-feed supervisor 8;Form oil ring 43 between described first insulating end ring 41 and the second insulating end ring 42;Institute
State insulating barrier 5 to be fixed on lower oil tank 2 and rectangular dielectric circle 4 by insulated bolt.
A kind of transformator forced oil-circulation guide frame of the present embodiment, cold transformer oil is by the oil-feed on lower oil tank
Supervisor enters bottom grease chamber, and the cushioning effect of bottom grease chamber makes oil stream equilibrium, and oil stream passes through 4 axial fuel inlet mouths, multiple width
The oil ring be made up of to oil-in and the first insulating end ring and the second insulating end ring even into Transformer Winding inside, and from
Winding topmost flows out, and Transformer Winding is cooled down.
A kind of transformator forced oil-circulation guide frame of the present embodiment, eliminates oil box of the prior art, prevents
Possible kish foreign body in oil box.
A kind of transformator forced oil-circulation guide frame of the present embodiment, cancels oil box, increases dividing plate, increases grease chamber
Space, plays very big cushioning effect to transformer oil, makes minute impurities in transformer oil oil, moisture, the nuisance such as greasy filth
Matter is deposited on the bottom of grease chamber, it is to avoid enters deposition in winding and leads to partial discharge phenomenon;Increased width to oil-in, make total
Oil inlet passage section increase, transformer oil can from whole circumference direction enter winding inside, reduce oil flow rate degree, make
Obtain oil flow rate degree and flow more equalizes, it is to avoid the generation of oil flow electrification phenomenon.
Above-described embodiment should not in any way limit this utility model, all by the way of equivalent or equivalency transform
The technical scheme obtaining all falls within protection domain of the present utility model.
Claims (3)
1. a kind of transformator forced oil-circulation guide frame it is characterised in that:It includes winding and lower oil tank;Under described winding
It is provided with lower pallet;It is provided with the first insulating end ring in the outer part and in the inner part second between described winding and lower pallet
Insulating end ring, described first insulating end ring and the second insulating end ring are all formed by paper circle and multiple cushion block bonding;Described first is exhausted
The paper circle of acies circle is rectangular dielectric circle;Described rectangular dielectric circle is the outer square structure of inner circle;Described rectangular dielectric circle and lower fuel-economizing
It is additionally provided with insulating barrier between case;Described lower oil tank, lower pallet, rectangular dielectric circle and insulating barrier surround bottom jointly
Grease chamber;Four axial fuel inlet mouths are provided with lower pallet.
2. a kind of transformator forced oil-circulation guide frame according to claim 1 it is characterised in that:Described bottom grease chamber
The side of lower oil tank is provided with oil-feed supervisor.
3. a kind of transformator forced oil-circulation guide frame according to claim 1 it is characterised in that:Described first insulation
Form oil ring between end circle and the second insulating end ring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201620984619.5U CN205959723U (en) | 2016-08-30 | 2016-08-30 | Transformer forces oil circulation guide structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201620984619.5U CN205959723U (en) | 2016-08-30 | 2016-08-30 | Transformer forces oil circulation guide structure |
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CN205959723U true CN205959723U (en) | 2017-02-15 |
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CN201620984619.5U Active CN205959723U (en) | 2016-08-30 | 2016-08-30 | Transformer forces oil circulation guide structure |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106205966A (en) * | 2016-08-30 | 2016-12-07 | 吴江变压器有限公司 | A kind of transformator forced oil-circulation guide frame |
-
2016
- 2016-08-30 CN CN201620984619.5U patent/CN205959723U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106205966A (en) * | 2016-08-30 | 2016-12-07 | 吴江变压器有限公司 | A kind of transformator forced oil-circulation guide frame |
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