CN208256420U - A kind of oil-immersed transformer and its radiator - Google Patents
A kind of oil-immersed transformer and its radiator Download PDFInfo
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- CN208256420U CN208256420U CN201820782453.8U CN201820782453U CN208256420U CN 208256420 U CN208256420 U CN 208256420U CN 201820782453 U CN201820782453 U CN 201820782453U CN 208256420 U CN208256420 U CN 208256420U
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- corrugated plate
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Abstract
The utility model relates to a kind of oil-immersed transformer and its radiators.A kind of radiator of oil-immersed transformer, including be made of two panels corrugated plate corrugated plate group, be connected to the top of corrugated plate group and the oil collecting pipe of bottom end, oil collecting pipe includes oil inlet pipe and oil outlet pipe, the corrugated plate has the oil groove formed by U-shaped bending, there is interval between two panels corrugated plate for constituting a corrugated plate group, be equipped with oil groove communicating passage between the oil groove between the oil collecting pipe and the interval, on oil collecting pipe and each corrugated plate.Using the above scheme, interval between corrugated plate can provide the biggish flowing space for the liquid stream of convection current, be conducive to the smooth flow of transformer oil, simultaneously, oil groove communicating passage is equipped between oil groove between the oil collecting pipe and the interval, on oil collecting pipe and each corrugated plate, flow area is big, can further increase heat dissipation effect compared with prior art.
Description
Technical field
The utility model relates to oil-immersed transformer and its radiators.
Background technique
The lesser oil-immersed transformer of capacity is frequently with Full-sealing corrugated oil box structure, such as Authorization Notice No.
A vegetable oil oil-immersed transformer disclosed in the Chinese patent of CN206421881U, including cabinet and the case being connect with cabinet
Lid, cabinet and case lid weld to form fuel tank, and four sides of cabinet are equipped with corrugate fin, i.e. corrugated plate, material is
1.2mm cold-rolled steel sheet processes spaced apart U-bend folding, generally rectangular wave shape on cold-rolled steel sheet, and U-shaped bending is in wave
Line on piece formed oil groove, oil groove have expansion function, can eliminate as transformer expands with heat and contract with cold and caused by pressure change, because
This transformer can be effectively prevented aqueous vapor intrusion transformer, to prevent transformer oil from insulating without being connected to outside air
Performance decline.
But oil-immersed transformer capacity it is larger when, since the lateralarea of fuel tank is limited, the setting quantity of corrugated plate
It is limited, therefore the heat dissipation area of corrugated plate is limited, the heat dissipation that traditional Full-sealing corrugated oil box structure is unable to satisfy transformer needs
It asks, the Oiltank structure of oil conservater can only be added using gilled radiator to meet the expansion of the heat dissipation of transformer and transformer oil and receive
Contracting.However, common oil conservater pasta is contacted with air, it is easy sucking aqueous vapor.The oil conservater of other forms include bellow oil conservator,
Diaphragm oil conservater, capsule oil conservator etc., structure is complicated, expensive, and reliability is not so good as all-sealed structure.
Authorization Notice No. is that the Chinese patent of CN203941785U discloses a kind of Improvement type transformer gilled radiator, should
Radiator is a kind of corrugation radiator, further includes being connected to heat dissipation including the radiator fin group formed by a plurality of corrugated plate groups
The bottom end of device piece group and the oil collecting pipe on top, oil collecting pipe include oil outlet pipe and oil inlet pipe, and oil outlet pipe and oil inlet pipe divide
Transformer body is not connected to by oil outlet and oil inlet.Corrugated plate by be equipped with U-shaped structure plate formed, U-shaped structure by
U-shaped on plate is bent to form, and each U-bend folding forms spaced apart oil groove on plate, and the U-shaped mouth of two corrugated plates is (i.e.
The notch of oil groove) closed butt joint formed cavity, each corrugated plate group by two dock corrugated plate constitute.The top two sides of cavity
Edge welds after docking in opposite directions, and the bottom end two sides of cavity are welded after opposite docking, and the bottom end of cavity is welded in oil outlet pipe,
The bottom end of each cavity is equipped with the through-hole communicated with oil outlet pipe；The top of cavity is welded in oil inlet pipe, the top of each cavity
End is equipped with the through-hole communicated with oil inlet pipe.Since the Improvement type transformer gilled radiator is made of corrugated plate, there is swollen contracting
Function does not need to install oil conservater on transformer body, avoids insulating oil dampness, to improve the use longevity of transformer
Life.
But in order to guarantee the requirement of heat dissipation effect and dilation amount, above-mentioned Improvement type transformer gilled radiator is needed
Size of the cavity in the U-shaped mouth width direction of corrugated plate is controlled, the clear size of opening of cavity top and bottom end also can
Therefore limited, flow area is smaller, and when above-mentioned radiator works transformer oil need from the through-hole of cavity top and bottom end with
Oil outlet pipe is connected to oil inlet pipe, and the flow area of through-hole directly can cause to limit to the convection current of transformer oil, causes to radiate
The heat-sinking capability of device is limited.In addition, the cell wall spacing (i.e. groove width) due to corrugated plate finishing bathtray is limited, it is unfavorable for liquid in corrugated plate
The flowing of stream, and oil collecting pipe also can cause to hinder to liquid stream, and these factors also will limit the heat dissipation performance of corrugation radiator.
Utility model content
The purpose of the utility model is to provide a kind of oil-immersed transformer and its radiators, to solve ripple in the prior art
The problem of heat-sinking capability of formula radiator is restricted because of flow area.
The technical solutions adopted are as follows for the radiator of oil-immersed transformer in the utility model.
The radiator of oil-immersed transformer, including be made of two panels corrugated plate corrugated plate group, be connected to corrugated plate
The top of group and the oil collecting pipe of bottom end, oil collecting pipe include oil inlet pipe and oil outlet pipe, and the corrugated plate has by U-shaped bending shape
At oil groove, there is between the two panels corrugated plate for constituting a corrugated plate group interval, the oil collecting pipe and the interval
Between, between the oil groove on oil collecting pipe and each corrugated plate be equipped with oil groove communicating passage.
The utility model has the advantages that using the above scheme, the interval between corrugated plate can provide biggish flowing for the liquid stream of convection current
Space is conducive to the smooth flow of transformer oil, meanwhile, between the oil collecting pipe and the interval, oil collecting pipe and each corrugated plate
On oil groove between be equipped with oil groove communicating passage, flow area is big, can further increase compared with prior art heat dissipation effect
Fruit.
As a kind of perferred technical scheme, the oil collecting pipe is arranged in the interval between two panels corrugated plate, the collection
The horizontal direction two sides of oil pipe are equipped with the oil groove communication port for communicating the inner cavity of oil collecting pipe with the oil groove on corrugated plate, described
Oil groove communicating passage includes the oil groove communication port.
Connection with oil pocket, structure can be realized by the oil groove communication port of the horizontal two sides setting of oil collecting pipe using the program
Simply, it is convenient for welding, it is easily manufactured.
As a kind of perferred technical scheme, the side of oil collecting pipe horizontal direction two sides is perpendicular, and oil groove connects
Port is arranged on the perpendicular, and the side that two panels corrugated plate is used to form oil groove notch is bonded with the perpendicular matches
It closes.
It is convenient for the processing of oil groove intercommunicating pore using the structure, and can be realized plane fitting, convenient for guarantees assembly precision.
As a kind of perferred technical scheme, the oil groove communication port is the long hole extended along the vertical direction.
Be conducive to improve flow area using long hole.
As a kind of perferred technical scheme, the bottom of the oil inlet pipe and the top of oil outlet pipe be equipped with it is described between
Every the interval communication port communicated, the oil groove communicating passage includes the interval communication port.
Oil groove communication port is set simultaneously and interval communication port can be improved flow area, further increases heat dissipation performance.
As a kind of perferred technical scheme, the oil groove communication port and interval communication port are mutual on the tube wall of oil collecting pipe
Isolation arrangement.
The structural strength of oil collecting pipe is advantageously ensured that using the above scheme, improves stability.
As a kind of perferred technical scheme, by vertically propping up between the oil inlet pipe and two corresponding ends of oil outlet pipe
It supports beam connection, the oil inlet pipe and the vertical side of oil outlet pipe and the vertical side of vertical supporting beam is coplanar, two panels ripple
It is closed by vertical supporting beam the horizontal both sides of the edge of piece.
It is convenient for the installation of corrugated plate using the above scheme.
As a kind of perferred technical scheme, the vertical supporting beam is connected to bottom surface and the oil outlet pipe of oil inlet pipe
Between top surface.
As a kind of perferred technical scheme, the vertical supporting beam be rectangle steel, channel steel or the steel plate for being bent into U-shaped,
The side plate of steel plate or the side plate of channel steel are connect with the corrugated plate.
As a kind of perferred technical scheme, it is equipped in the interval and is connected to oil inlet pipe, oil outlet pipe and vertically connects
Reinforcing rib between at least two of fitting.
The technical solutions adopted are as follows for oil-immersed transformer in the utility model.
Oil-immersed transformer, it is described to dissipate including fuel tank, the radiator being arranged on fuel tank and the oil conservater being connected to fuel tank
Hot device is identical as any technical solution of the radiator of above-mentioned oil-immersed transformer.
As a kind of perferred technical scheme, the oil conservater is full-closed structure, and the fuel tank is used for and oil conservater phase
The top of fuel tank is arranged in logical Oil Tank connector, and transformer oil is full of in the fuel tank to be totally submerged inside the case of fuel tank
Part.
Transformer oil can either be avoided to contact with air using the above scheme, and transformation can be adapted to by corrugation radiator
Device oil expands with heat and contract with cold, and oil conservater can supplement oil liquid for fuel tank, is completely submerged in case inner part in fuel tank, guarantees safety
Can, structure is simple, at low cost.
Above-mentioned each preferred technical solution can be used individually, can also be with two or more any in the case where that can combine
Combination uses.
Detailed description of the invention
Fig. 1 is the main view of one embodiment of oil-immersed transformer in the utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the left view (saving corrugation radiator) of Fig. 1；
Fig. 4 is the main view of oil conservater in the utility model；
Fig. 5 is the side view of Fig. 4；
Fig. 6 is the perspective view of corrugation radiator in Fig. 1；
Fig. 7 is the structural exploded view of Fig. 6；
Fig. 8 is the structural schematic diagram of corrugated plate in Fig. 6；
Fig. 9 is the structural schematic diagram of oil inlet pipe；
Figure 10 is the structural schematic diagram of radiator frame.
The title of component part corresponding to each appended drawing reference in figure are as follows: 10- fuel tank, 11- corrugated plate, 12- corrugated fins
Device, 13- oil inlet pipe, 14- oil outlet pipe, 15-U shape bending, 16- round steel, 17- vertical supporting beam, the interval 18-, 19- oil groove connect
Port, the interval 110- communication port, 111- bushing, 112- low-tension bushing, 113- grounding sleeve, 114- tap switch, 115-
Pressure relief valve, 116- top-oil temperature degree meter, 119- oil groove.21- oil conservater, 22- cabinet body, 23- gas vent, 24- pouring orifice,
25- fuel tank interface, 26- pipeline, 27- gas relay, 28- oil level indicator.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
One embodiment of oil-immersed transformer is as shown in Figures 1 to 10 in the utility model, including fuel tank 10, setting exist
Corrugation radiator 12 and oil conservater 21 on fuel tank 10.
The structure of fuel tank 10 is same as the prior art, it is the shell for protecting transformer body and the container for containing oil, and is
The skeleton of assembling transformer outer structural parts, while the heat for being generated body loss by transformer oil is with convection current and radiation
Mode is dissipated in atmosphere.Specifically, fuel tank 10 includes cabinet, and the top surface of cabinet is equipped with bushing 111, low-tension bushing 112
With grounding sleeve 113, the effect of bushing 111, low-tension bushing 112 is that the winding in fuel tank 10 is drawn out to outside fuel tank 10,
Play connection and insulating effect.The effect of grounding sleeve 113 is that the ground line on iron core or folder is drawn out to outside fuel tank 10, plays company
It connects and insulating effect.Body includes iron core, winding, lead and various insulating parts etc., is the main body of transformer.It is also set on fuel tank 10
Have tap switch 114, pressure relief valve 115 and a top-oil temperature degree meter 116, tap switch 114 by transformation winding tap come
Change transformer voltage ratio；Pressure relief valve 115 is used to have catastrophe failure, oil decomposition to generate bulk gas, oil in inside transformer
In case 10 when hypertonia, discharge part transformer oil and gas reduce pressure in fuel tank 10, after pressure reduction, pressure release
Valve 115 is closed automatically；Top-oil temperature degree meter 116 provides signal contact for detecting transformer oil temperature of top.
Corrugation radiator 12 includes corrugated plate group and oil collecting pipe, and oil collecting pipe is connected to the top and bottom of corrugated plate group
End, including oil inlet pipe 13 and oil outlet pipe 14, oil inlet pipe 13 and oil outlet pipe 14 are made of square steel, and axial the one of square steel
Welding steel closing is held, axial other end welded flange is used to connect butterfly valve.In other embodiments, it can not also be welded on square steel
Acting flange, when use, are directly welded in the aperture of tank wall.Four sides of square steel are plane, are equipped with length on three sides
Hole.
The material of corrugated plate 11 is 1.2mm 1.5mm thick steel plate (trade mark is not less than ST14), the bending on plane steel plate
The U-shaped bending 15 of multiple protrusions out, U-shaped bending 15 form oil groove 119, depth (the i.e. height of wave wing protrusion plane of oil groove 119
Degree) range is generally between 170mm to 350mm, and oil groove 119 inner wall distance is generally 6mm, and the spacing between oil groove 119 is minimum
For 45mm.Oil groove 119 on each corrugated plate 11 folds rear upper and lower side welded closure.Two are used respectively in the upper and lower side end of oil groove 119
Root round steel 16 is spot-welded together, for preventing oil groove 119 to be formed by the deformation of wave wing.Certainly, the thickness of corrugated plate, length etc.
Parameters can also be changed according to actual needs.
Vertical supporting beam 17, vertical supporting beam 17 are welded between the bottom surface of oil inlet pipe 13 and the top surface of oil outlet pipe 14
It can be rectangle steel, channel steel or the steel plate for being bent into U-shaped, the side plate of steel plate or the side plate of channel steel are connect with the corrugated plate 11.
Vertical supporting beam 17 uses channel steel in the present embodiment.Oil inlet pipe 13, oil outlet pipe 14 and vertical supporting beam 17 form radiator
The vertical side of skeleton, oil inlet pipe 13 and oil outlet pipe 14 and the vertical side of vertical supporting beam 17 are coplanar, so that corrugated plate
11 each side edge can fit on radiator skeleton, and closing is realized by radiator skeleton in the edge of corrugated plate 11, meanwhile,
The horizontal both sides of the edge of two panels corrugated plate 11 are closed by vertical supporting beam 17, and the interval between corrugated plate is made to form closing chamber,
Closing chamber communicates with the oil groove on corrugated plate and oil pocket is collectively formed with oil groove.It, can be in order to improve the intensity of radiator skeleton
The reinforcing rib between at least two of oil inlet pipe 13, oil outlet pipe 14 and vertical connector is connected in setting in interval 18.
In the long hole being arranged on the side of square steel, the long hole on the side of horizontal direction two sides extends along the vertical direction
Long hole forms oil groove communication port 19, the notch opening's edge of 11 finishing bathtray 119 of corrugated plate and the side of oil collecting pipe horizontal direction two sides
Face close fit, the oil groove 119 on corrugated plate 11 are connected to the oil groove communication port 19.The bottom surface of square steel is equipped with interval connection
Mouth 20, the interval communication port 20 and oil groove communication port 19 are arranged separately to each other on the tube wall of oil collecting pipe.Above-mentioned interval connection
Mouth 20 and oil groove communication port 19 are respectively formed oil groove communicating passage at one, so as to increase flow area.Square steel does not open long hole
Upper welding platform sling and fixed plate on one side, in order to lift by crane corrugation radiator 12 and convenient for the fixation of 12 component of corrugation radiator.
Oil conservater 21 is higher than fuel tank 10, including columned cabinet body 22, and cabinet body 22 is full-closed structure, including columnar
Cylinder and the end plate for being weldingly fixed on cylinder axial ends, material is sheet metal, thickness 2mm to 6mm.
The top of the oil conservater 21 is equipped with gas vent 23 in the axial middle part of oil conservater 21, and gas vent 23 is deflation method
Orchid, is connected with vent valve thereon, and vent valve can be used gate valve, and when oiling opens gate valve, fills oily closing gate valve.Oil conservater 21
Bottom is equipped with pouring orifice 24, and pouring orifice 24 is oiling flange, is connected with fuel feeding valve thereon, and fuel feeding valve can be used gate valve, when oiling
Open gate valve, closing gate valve after oiling.The bottom of oil conservater 21 is additionally provided with for 10 phase of fuel tank with oil-immersed transformer
Fuel tank interface 25 even, the fuel tank interface 25 of oil conservater 21 are connect with fuel tank 10 by pipeline 26, pipeline 26 equipped with gas after
Electric appliance 27.
The end face of the oil conservater 21 be equipped with oil level indicator 28, the oil level indicator 28 be pipe structure, pipe structure it is upper
End and lower end are connected to the top and bottom of oil conservater 21.Oil level indicator 28 is for observing 21 oil surface level of oil conservater.It can use
Pipe type oil-level gauge 28, or with magnetic-type oil level indicator 28 and band signal contact.
The oil conservater 21 be it is all-sealed, have pouring orifice 24 and gas vent 23, apnea mouth does not connect dehydrating breather.With tradition
Oil conservater 21 is different, which fills transformer oil when using, and due to being not provided with pneumostome, does not have compensation because of oil
The function of transformer oil volume change caused by temperature rise drop, function are to ensure that transformer body and casing part reliably soak
Enter in oil.Cooperate when the oil conservater 21 uses with corrugation radiator 12, it can be achieved that 35kV and the above high-power transformer it is hermetically sealed.
In the above-described embodiments, the horizontal direction two sides of the oil collecting pipe are equipped with inner cavity and corrugated plate for making oil collecting pipe
On the oil groove communication port that communicates of oil groove, the oil collecting pipe is equipped with towards the side in the middle part of corrugated plate short transverse and the interval
The interval communication port communicated, is spaced communication port 20 and oil groove communication port 19 is respectively formed oil groove communicating passage at one.It is practical new at this
In the other embodiments of type, the oil collecting pipe can also be arranged in towards corrugated plate height in oil groove communication port and interval communication port simultaneously
Spend the side in the middle part of direction.
In addition, in the above-described embodiments, the notch of oil groove is communicated with oil collecting pipe, it in other embodiments, can also be in oil
Opening is set on the end face of slot top and bottom direction, is communicated by the opening with oil collecting pipe.Certainly, oil groove communication port and interval communication port
Also the hole of other forms, such as circular hole be could alternatively be, each hole can also be with arranged for interval.Furthermore in other embodiments, oil groove
Communication port and interval communication port can also be interconnected on the tube wall of oil collecting pipe.
In the above-described embodiments, oil collecting pipe is square tube, and in other embodiments, oil collecting pipe also could alternatively be round tube.
Any implementation of the embodiment of the radiator of oil-immersed transformer, that is, above-mentioned oil-immersed transformer in the utility model
Corrugation radiator in example, details are not described herein again for specific structure.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to
The utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For member, still the modification for being not required to make the creative labor can be carried out to technical solution documented by foregoing embodiments,
Or equivalent replacement of some of the technical features.Within the spirit and principle of the utility model, made any
Modification, equivalent replacement, improvement etc., should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of radiator of oil-immersed transformer, including be made of two panels corrugated plate corrugated plate group, be connected to ripple
The top of piece group and the oil collecting pipe of bottom end, oil collecting pipe include oil inlet pipe and oil outlet pipe, and the corrugated plate has by U-shaped bending
The oil groove of formation, it is characterised in that: there is interval, the oil collecting pipe between the two panels corrugated plate for constituting a corrugated plate group
Oil groove communicating passage is equipped between oil groove between the interval, on oil collecting pipe and each corrugated plate.
2. the radiator of oil-immersed transformer according to claim 1, it is characterised in that: the oil collecting pipe is arranged in two panels
In interval between corrugated plate, the horizontal direction two sides of the oil collecting pipe are equipped on the inner cavity and corrugated plate for making oil collecting pipe
The oil groove communication port that oil groove communicates, the oil groove communicating passage include the oil groove communication port.
3. the radiator of oil-immersed transformer according to claim 2, it is characterised in that: the oil collecting pipe horizontal direction two
The side of side is perpendicular, and oil groove communication port is arranged on the perpendicular, and two panels corrugated plate is used to form oil groove notch
Side and the perpendicular close fit.
4. the radiator of oil-immersed transformer according to claim 2 or 3, it is characterised in that: the bottom of the oil inlet pipe
Portion and the top of oil outlet pipe are equipped with the interval communication port communicated with the interval, and the oil groove communicating passage includes the interval
Communication port.
5. the radiator of oil-immersed transformer according to claim 4, it is characterised in that: the oil groove communication port and interval
Communication port is arranged separately to each other on the tube wall of oil collecting pipe.
6. the radiator of oil-immersed transformer described in any one to 3 according to claim 1, it is characterised in that: it is described into
Connected between oil pipe line and two corresponding ends of oil outlet pipe by vertical supporting beam, the oil inlet pipe and oil outlet pipe it is vertical
Side is coplanar with the vertical side of vertical supporting beam, and the horizontal both sides of the edge of two panels corrugated plate are closed by vertical supporting beam.
7. the radiator of oil-immersed transformer according to claim 6, it is characterised in that: the vertical supporting beam is connected to
Between the bottom surface of oil inlet pipe and the top surface of oil outlet pipe.
8. the radiator of oil-immersed transformer according to claim 6, it is characterised in that: the vertical supporting beam is rectangle
Steel, channel steel or the steel plate for being bent into U-shaped, the side plate of steel plate or the side plate of channel steel are connect with the corrugated plate.
9. oil-immersed transformer exists including fuel tank, the radiator being arranged on fuel tank and the oil conservater being connected to fuel tank, feature
In: the radiator is radiator described in any one of claim 1-8.
10. oil-immersed transformer according to claim 9, it is characterised in that: the oil conservater is full-closed structure, described
The top of fuel tank is arranged in the Oil Tank connector that fuel tank is used to communicate with oil conservater, and transformer oil is full of in the fuel tank with complete
Submerge the case inner part of fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820782453.8U CN208256420U (en) | 2018-05-24 | 2018-05-24 | A kind of oil-immersed transformer and its radiator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820782453.8U CN208256420U (en) | 2018-05-24 | 2018-05-24 | A kind of oil-immersed transformer and its radiator |
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| CN208256420U true CN208256420U (en) | 2018-12-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114496491A (en) * | 2022-01-06 | 2022-05-13 | 保定天威保变电气股份有限公司 | Multifunctional oil storage system for transformer and heat dissipation method |
-
2018
- 2018-05-24 CN CN201820782453.8U patent/CN208256420U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114496491A (en) * | 2022-01-06 | 2022-05-13 | 保定天威保变电气股份有限公司 | Multifunctional oil storage system for transformer and heat dissipation method |
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