CN101651012A - Radiating module of dry type transformer - Google Patents
Radiating module of dry type transformer Download PDFInfo
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- CN101651012A CN101651012A CN200910182021A CN200910182021A CN101651012A CN 101651012 A CN101651012 A CN 101651012A CN 200910182021 A CN200910182021 A CN 200910182021A CN 200910182021 A CN200910182021 A CN 200910182021A CN 101651012 A CN101651012 A CN 101651012A
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- heat radiation
- type transformer
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Abstract
The invention discloses a radiating module of a dry type transformer. Axial fans are used for replacing original cross-flow cooling fans. The radiating module is characterized by comprising a rectangular stand and three sets of axial fans which are arranged in the stand, wherein the motor axle center of each fan is parallel to the coil axle center of the transformer; the power wire connection endof each fan is connected to a bus interface in parallel, and the bus interface is arranged on a side face of the stand in the height and width direction; ventilation holes which correspond to air outlets of each axial fan is arranged on the top surface of the stand in a hollow mode; and the side of the stand in the height and width direction is provided with a first connecting part used for fixedly connecting the stand to a supporting table of the transformer. After the design scheme of the invention is put into use, the cooling effect of the radiating module to the dry type transformer can beimproved, and meanwhile, the invention has the advantages of high fan operation balance, low noise, high operation reliability of the radiating module, convenient wire connection, easy position and height adjustment, firm and beautiful structure, easy maintenance and quick recovery and use.
Description
Technical field
The present invention relates to a kind of heat radiation module, relate in particular to a kind of heat radiation module of dry-type transformer, be used for the coil windings of dry-type transformer is cooled off.
Background technology
Dry-type transformer produces a large amount of heats in operate as normal, need dispel the heat as early as possible, at present air-cooled mode is adopted in the heat radiation of this transformer, and promptly drying with blower fan reaches the purpose of heat radiation.Existing dry-type transformer cooling fan mostly is to utilize common induced draft fan, utilize the Blower Housing of a scroll casing shape, its side is the air inlet through hollow shaft mouth, the tangential direction of housing has an exhaust outlet, tabular blade and motor shaft is housed in the shell joins, and blade bearing is supported on the housing, this cooling fan noise is very big, shake acutely during work, radiating effect is poor, and useful life is also shorter relatively.
China Patent No. is that 03212472.4 utility model discloses a kind of " dry-type transformer cross-flow type cooling blower " that has improved.Its principal character is: be connected to four blocks of blower fan plates between end plate and motor plate, six plate bodys surround fan blade rotation cavity and leave exhaust outlet, wherein part blower fan plate is provided with air inlet, be provided with dividing plate between air inlet and the exhaust outlet, be equipped with between end plate and motor plate and rotate the fan blade tube, the motor output shaft that is fixed on the motor plate joins with rotation fan blade tube.The structure of wherein rotating the fan blade tube is: be evenly distributed with groove around the discoid fan blade fixed head, the fan blade of strip places the rotation fan blade tube that forms tubular in the groove with certain angle of inclination, and the fan blade fixed head at two ends is connected with the motor plate bearing with end plate respectively.
Be not difficult to find that before and after the improvement to dry type generator cooling fan, the essence of its radiating mode does not change, two kinds of radiator structures all design and make based on cross-flow fan.As shown in Figure 1, be the structural representation that prior art cross-flow type cooling blower is applied to the dry-type transformer heat radiation.As seen from the figure: wherein dry-type transformer 1 bottom viewable portion comprises by iron core, low pressure winding 11, high pressure winding 12, supporting station assembly fixture 13 and coil supporting substrate 14.And be equipped with two cross-flow type cooling blowers 2 in the every phase bottom of dry-type transformer, corresponding low pressure winding 11 of difference and high pressure winding 12, to dry-type transformer 1 air feed, and to rotate the energy supply that fan blade tube 21 turned round be to realize by the set distribution terminal 22 in its side by the rotation fan blade tube 21 in the cooling blower 2.Whole dry-type transformer 1 is assembled in transformer supporting station 7 or increases through bed hedgehopping piece 71 on the transformer supporting station 7 of processing.Obvious shown in the wind direction arrow from figure, there is following defective in this dry-type transformer:
I, flabellum balance are poor, blower fan is short useful life: because the axle center of motor of cross-flow fan and the central point of fan frame bearing pedestal, when assembling, be difficult for keeping concentric position, after causing flabellum axle two ends to be fixed at above-mentioned 2, can produce the partial eccentricity phenomenon, therefore tell in the rotary course at flabellum, bearing very easily takes place damage unusually.Flabellum is not only long but also heavy simultaneously, and rotating torque is bigger, also easily produces the rotation unbalance vibration, makes bearing quicken loss, and the extension set life-span also will shorten
II, operating reliability: the cross-flow fan volume is bigger, generally all is every two cooling fans of installing mutually, and promptly every three-phase transformer is equipped with six cross-flow fans.Under this structure situation, any cross-flow fan breaks down, and will have a greatly reduced quality to the efficient of whole cooling heat radiation system.
III, cooling effect: the air-flow that blower fan blows out blows into crosswind road inside and outside the winding with about 45 degree elevation directions, and easily causes sinuous flow in shunting radially, makes the useful axial flow of winding heat radiation is reduced.
IV, the mode of connection: the cross-flow fan volume is bigger, and usually earlier with frame fixation distribution again, exposed wiring path is uneven outside for its terminal board simultaneously, and is therefore neat from being difficult in appearance the circuit arrangement.Need by the user voluntarily during wiring the normal possibility that misconnection easily takes place if run into the fan electric control unit.
V, position are adjusted: when being installed in the transformer of different size, cross-flow fan needs the special relative position of considering to adjust between fan body and the winding, and air-flow is blown into best angle; But when running into the capacity smaller transformer, need to strengthen in addition the transformer height during fan assembly insufficient space, cause the increase of material cost and the waste of transformer height space.
VI, structure robustness: the shell of cross-flow fan does not generally have special weighted design, and in assembling, in the use, Chang Yiyin tramples and is out of shape, sometimes in addition the situation that causes flabellum to rotate take place.
VII, because the production of cross-flow fan is not general, and the different size versatility is poor, in case fan failure is difficult for changing immediately the same specification product, and maintenance difficulty.
Comprehensive above for cross-flow fan architectural feature and the Symptom of using last seven aspects thereof as seen, prior art generally adopts the heat abstractor of cross-flow type cooling blower as dry-type transformer, has many inconvenience and safety work hidden danger.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, purpose of the present invention aims to provide a kind of heat radiation module of dry-type transformer, replace original cross-flow type cooling blower, improve the heat radiation cooling effect under the dry-type transformer working condition, improve the ease for maintenance of reliability, stability and the heat abstractor of transformer work.
The technical solution that the object of the invention is achieved is:
Design and make up a kind of heat radiation module of dry-type transformer, be characterized in: this heat radiation module comprises the frame of a cuboid and is assemblied in three groups of interior axial fan groups of this frame that wherein the electrical axis of each blower fan is parallel to the coil axle center of transformer; And the supply terminals of each blower fan is parallel on the bus interface that frame height, Width one side offer; The frame end face is engraved the air-permeating hole that is provided with corresponding to each axial fan air outlet, and this frame is provided with first connecting portion that is used to be secured to the transformer supporting station in its height, length direction one side, to be spirally connected, to link up with or form such as the welding module that will dispel the heat is fixed on the dry-type transformer.
Further, the heat radiation module of aforementioned dry-type transformer, wherein every group of contained blower fan quantity of axial fan group is 1 to 3.If contained blower fan quantity is 1 or 2, then the electrical axis of each axial fan is positioned on the same straight line of length direction; If but contained blower fan quantity is 3, the electrical axis of the electrical axis of both sides blower fan and middle blower fan is arranged for dislocation in the longitudinal direction in then any one group of axial fan.
Further, the heat radiation module of aforementioned dry-type transformer, wherein this frame is the bottom surface unenclosed construction, and frame inside is provided with two reinforcements that are parallel to Width, and frame is divided into three blower fan assembly sections along its length.
Further, the heat radiation module of aforementioned dry-type transformer, wherein this reinforcement extends the transmit plate that the band level is engraved groove towards the frame bottom side; And frame also comprises two second connecting portions with height regulating tank, penetrate the height regulating tank that intersects vertically engraves groove with level and is fixed on the corresponding transmit plate by second screw, the bottom surface of second connecting portion supports on the transformer brace table, and relative first connecting portion forms perpendicular positioning.
Further, the heat radiation module of aforementioned dry-type transformer, wherein this frame inside top surface row is provided with plural number and connects circuit, and the tandem of one end is to bus interface, and the other end connects at each axial fan rigging position respectively and establishes a socket; The supply terminals of each axial fan is the plug corresponding to described socket.
Further, the heat radiation module of aforementioned dry-type transformer, wherein this axial fan and frame end face are equipped with the assembling open-work at correspondence position, and blower fan is screwed to inside top surface by first screw.
After the heat radiation module application implementation of dry-type transformer of the present invention, adopt the strong axial fan of quantity and specification washability in conjunction with frame, the air-flow that can make blower fan blow out can be blown into air-flow in the winding air channel with the elevation direction of 90 degree, thereby has strengthened the cooling effect of heat radiation module to dry-type transformer.In addition, the present invention has also that fan running balance height, noise are low, heat radiation module operating reliability height, be convenient to wiring, position and Height Adjustment easily, structure is firm and attractive in appearance, and the advantage of for ease of maintenaince fast quick-recovery use.
In conjunction with its accompanying drawing, obtained outstanding effect elaborates further to the architectural feature of the heat radiation module of the present invention design and after adopting this heat radiation module below in conjunction with a plurality of preferred embodiments.
Description of drawings
Fig. 1 is the structural representation that prior art cross-flow type cooling blower is applied to the dry-type transformer heat radiation;
Fig. 2 is that the present invention's module that dispels the heat is applied to the structural representation of dry-type transformer heat radiation;
Fig. 3 is the dispel the heat structural representation of the inner bottom side of module one preferred embodiment of the present invention;
Fig. 4 is the enlarged diagram of A part among Fig. 3;
Fig. 5 is the enlarged diagram of B part among Fig. 3;
Fig. 6 is the structure schematic appearance of a preferred embodiment of the present invention;
Fig. 7 is the structure schematic appearance of another embodiment of the present invention;
Fig. 8 is the structure schematic appearance of preferred embodiment shown in Figure 3.
The implication of each Reference numeral is as follows in the above embodiment accompanying drawing:
1～dry-type transformer, 11～low pressure winding, 12～high pressure winding, 13～supporting station assembly fixture, 14～coil supporting substrate;
2～cross-flow fan, 21～rotation fan blade tube, 22～distribution terminal;
3～heat radiation module, 31～axial fan, 31a-31i～axial fan, 311～assembling open-work, 32～frame, 321～frame end face, 321a-321f～air-permeating hole, 322～frame height, the side of cross direction, side, 33～bus interface, 34～reinforcement, 35～transmit plate, the 351～level of 323～frame length and width direction are engraved groove;
41～the first connecting portions, 42～the second connecting portions, 421～height regulating tank;
5～temperature control lead-in wire;
61～the first screws, 62 second screws;
7～transformer supporting station, 71～bed hedgehopping piece;
The distribution stitching in a plurality of blower fans axle center of α, β～be located along the same line.
Embodiment
Embodiment one
The present invention is dispelled the heat the enlarged diagram of the structural representation of the inner bottom side of module one preferred embodiment and A, B part thereof in conjunction with shown in its structure schematic appearance of Fig. 8 as Fig. 3 to Fig. 5, can recognize that this is used for the heat radiation module 3 that dry-type transformer carries out cooling operations is mainly comprised the frame 32 of a bottom surface open type cuboid, and be assemblied in three groups of axial fan groups (contain 9 axial fans in the present embodiment altogether, and per 3 blower fans constituting a group) in this frame 32.The supply terminals of all these axial fan 31a～31i all compiles and is parallel on the set bus interface 33 in frame height, Width one side 322.And the end face 321 (as shown in Figure 8) of this frame 32 is engraved corresponding to the air outlet of the axial fan 31a of assembling and is provided with ventilative mouthful 321a, and is identical corresponding to the air outlet place structure of axial fan 31b～31i that other assembled.In addition, this frame 32 is provided with first connecting portion 41 that is used to be secured to transformer supporting station 7 in its height, length direction one side 323.Wherein:
As shown in Figure 4, this axial fan 31a is provided with assembling open-work 311, and the end face 321 of this frame 32 also is provided with assembling open-work (not shown) at correspondence position.Especially in the present embodiment, the bottom surface of this frame 32 is not unlimited fully, still leave very narrow frame, and on this frame, also be provided with assembling open-work corresponding to axial fan 31a and end face 321, so just make this axial fan 31a can penetrate the assembling open-work of these three coaxial alignment, be screwed to frame 32 end faces 321 inboards by screw 61.Need to prove, herein only with an axial fan 31a as exemplary illustration, the assembly structure of other each axial fan can be in full accord with it; But also can be inconsistent, any syndeton that axial fan can be fixed to end face 321 inboards is feasible, as interlocking, buckle connection etc.
Carry out the prerequisite of cooling operations as each axial fan, need carry out energy supply to it respectively, drive its axle center and drive flabellum and rotate, produce air-flow towards the Transformer Winding air channel.Each axial fan all has separately independently supply terminals, and after finishing structure assembling, each supply terminals need be put in order and pool together, and is connected on the bus interface 33 that is located on the side 322 with the circuit structure form of parallel connection.Thus, nationality is realized electric the butt joint by bus interface 33 with the joint of outside temperature control lead-in wire, thereby reaches the purpose (as described in Figure 5) that drives each axial fan.
As shown in Figure 3, can also see the reinforcement 34 that also is provided with two Widths in this frame, increase the bulk strength of frame on the one hand, on the other hand frame 32 is divided in the longitudinal direction three blower fan assembly sections, three groups of axial fan groups of corresponding assembling form further reinforcement or supporting construction in order to being implemented in the gap of respectively organizing the axial fan group.In the present embodiment, on this reinforcement 34, extend and be provided with transmit plate 35, and on this transmit plate 35, be provided with level and engrave groove 351, be used for the height location when assembling second connecting portion 42 towards the frame bottom side.And this frame 32 can also comprise two second connecting portions 42 that are provided with height regulating tank 421, and is corresponding one by one with reinforcement 34 and transmit plate 35 thereof respectively.In when assembling, engrave groove 351 by the height regulating tank 421 that uses screw 62 to penetrate to intersect vertically and level and be fixed on the corresponding transmit plate 35.When using, the bottom surface of this second connecting portion 42 supports on transformer supporting station 7, forms the perpendicular positioning that has than high structural strength with respect to first connecting portion 41.
These first connecting portion, 41 quantity reach has diversity in form, generally select for use two to five to get final product, and its type of attachment with respect to transformer supporting station 7 can be a hook, also can be bolt apertures, every equal applicable feasibility of conventional syndeton that frame 32 firmly can be assembled to transformer supporting station 7.
This example structure schematic appearance as shown in Figure 8 as seen, these three groups of axial fan groups all contain three independent extension sets for every group.For improving the radiating effect that it blows out the air-flow combination, also in order to save the overall volume of heat radiation module, the electrical axis of the electrical axis of both sides blower fan 31d, 31f and middle blower fan 31e is arranged the dislocation position in the longitudinal direction in each axial fan group.And the electrical axis line of the middle blower fan of each axial fan group forms a distribution stitching α, and the electrical axis line of each both sides blower fan forms a distribution stitching β.Clearly this axle center distribution stitching α and axle center distribution stitching β arrange for dislocation.
Embodiment two
As shown in Figure 6, be the structure schematic appearance of a preferred embodiment of the present invention.The heat radiation modular structure feature of this embodiment and assembly features and embodiment one are basic identical, so same section repeats no more.Its difference is that every group of contained blower fan quantity of axial fan group has only one, and the electrical axis of each blower fan is positioned on the same straight line of length direction, promptly forms axle center distribution stitching α.
Embodiment three
As shown in Figure 7, be the structure schematic appearance of another preferred embodiment of the present invention.The heat radiation modular structure feature of this embodiment and assembly features and aforementioned two embodiment are basic identical, so same section also repeats no more.Its difference is that every group of contained blower fan quantity of axial fan group has only two, and the electrical axis of each blower fan is positioned on the same straight line of length direction, promptly forms axle center distribution stitching α.
In addition to the implementation, the present invention can also improve at the mode of connection, to pursue maintenance and effect more attractive in appearance more easily.Specific practice is: be close to row in end face 321 inboards of frame 32 and establish plural number and connect circuit (not shown), an end tandem that respectively connects circuit is to bus interface 33, to establish a socket (not shown and the other end connects at each axial-flow type extension set rigging position respectively, but can be regarded as the conventional sub-socket of both-end), and the supply terminals of each axial fan is provided with the plug corresponding to this socket; Finish the assembling of physical structure at axial fan after, can realize the electric assembling of blower fan, improve the assembling and the maintenance efficiency of this heat radiation module 3 greatly by simple grafting operation.
By the specific descriptions of above a plurality of embodiment, the present invention is with respect to the existing heat radiation cooling system of making based on cross-flow fan, and the outstanding advantage that it had is just apparent.The module that dispels the heat of the present invention as shown in Figure 2 is applied to the structural representation of dry-type transformer heat radiation.From seeing shown in the figure: after having used this heat radiation module, can save original supporting station bed hedgehopping piece 71 that causes material deterioration inside, directly be assembled on the transformer supporting station 7 by supporting station assembly fixture 13 based on axial fan.And most importantly for the high and low pressure winding of the every phase of dry-type transformer, the air-flow that all adopts 90 degree directly to blow dispels the heat, and the cooling effect when making the dry-type transformer running improves greatly.In addition, should be that core makes up the heat radiation module that forms with the axial fan, have also that fan running balance height, noise are low, long service life, heat radiation module operating reliability height, be convenient to wiring, position and Height Adjustment easily, structure is firm and attractive in appearance, and advantage such as fast quick-recovery use for ease of maintenaince.
In sum, to the architectural feature of the heat radiation module of a kind of dry-type transformer of the present invention and the beneficial effect after using done detailed record.But be not the diversity that limits embodiment of the present invention with this,, have large-scale selectivity on the quantity of its axial fan, the specification according to the specification of different transformers.Therefore, carry out simple modification or the formed technical scheme of equivalence replacement for above embodiment in every case, can reach the design of the object of the invention, all belong in the scope of the present patent application protection.
Claims (8)
1. the heat radiation module of dry-type transformer is characterized in that: described heat radiation module comprises the frame of a cuboid and is assemblied in three groups of axial fan groups in the frame that the electrical axis of wherein said each blower fan is parallel to the coil axle center of transformer; And the supply terminals of each blower fan is parallel on the bus interface that frame height, Width one side offer; Described frame end face is engraved the air-permeating hole that is provided with corresponding to each axial fan air outlet, and frame is provided with first connecting portion that is used to be secured to the transformer supporting station in its height, length direction one side.
2. the heat radiation module of dry-type transformer according to claim 1, it is characterized in that: the contained blower fan quantity of described every group of axial fan group is 1 to 3.
3. the heat radiation module of dry-type transformer according to claim 2, it is characterized in that: the contained blower fan quantity of described every group of axial fan group is 1 or 2, and the electrical axis of each axial fan is positioned on the same straight line of length direction.
4. the heat radiation module of dry-type transformer according to claim 2, it is characterized in that: the contained blower fan quantity of described every group of axial fan group is 3, and the electrical axis of the electrical axis of both sides blower fan and middle blower fan is arranged for dislocation in the longitudinal direction in any one group of axial fan.
5. the heat radiation module of dry-type transformer according to claim 1, it is characterized in that: described frame is the bottom surface unenclosed construction, and frame inside is provided with the reinforcement of two Widths, and frame is divided into three blower fan assembly sections along its length.
6. the heat radiation module of dry-type transformer according to claim 5, it is characterized in that: described reinforcement extends the transmit plate that the band level is engraved groove towards the frame bottom side; And described frame also comprises two second connecting portions with height regulating tank, penetrate the height regulating tank that intersects vertically engraves groove with level and is fixed on the corresponding transmit plate by second screw, the bottom surface of second connecting portion supports on the transformer brace table, and relative first connecting portion forms perpendicular positioning.
7. the heat radiation module of dry-type transformer according to claim 1 is characterized in that: described frame inside top surface row is provided with plural number and connects circuit, and the tandem of one end is to bus interface, and the other end connects at each axial fan rigging position respectively and establishes a socket; The supply terminals of each axial fan is the plug corresponding to described socket.
8. the heat radiation module of dry-type transformer according to claim 1, it is characterized in that: described axial fan and frame end face are equipped with the assembling open-work at correspondence position, and blower fan is screwed to inside top surface by first screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101820219A CN101651012B (en) | 2009-07-17 | 2009-07-17 | Radiating module of dry type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101820219A CN101651012B (en) | 2009-07-17 | 2009-07-17 | Radiating module of dry type transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101651012A true CN101651012A (en) | 2010-02-17 |
| CN101651012B CN101651012B (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101820219A Expired - Fee Related CN101651012B (en) | 2009-07-17 | 2009-07-17 | Radiating module of dry type transformer |
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| Country | Link |
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| CN (1) | CN101651012B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800462A (en) * | 2011-05-23 | 2012-11-28 | 苏州沃能电力设备有限公司 | Heat radiation device applied in dry type transformer |
| CN104505219A (en) * | 2014-12-12 | 2015-04-08 | 海鸿电气有限公司 | Radiator applied to dry-type transformer |
-
2009
- 2009-07-17 CN CN2009101820219A patent/CN101651012B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800462A (en) * | 2011-05-23 | 2012-11-28 | 苏州沃能电力设备有限公司 | Heat radiation device applied in dry type transformer |
| CN104505219A (en) * | 2014-12-12 | 2015-04-08 | 海鸿电气有限公司 | Radiator applied to dry-type transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101651012B (en) | 2011-06-22 |
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