CN213070839U - Power transformer for accelerating oil circulation and cooling of transformer - Google Patents
Power transformer for accelerating oil circulation and cooling of transformer Download PDFInfo
- Publication number
- CN213070839U CN213070839U CN202021520691.5U CN202021520691U CN213070839U CN 213070839 U CN213070839 U CN 213070839U CN 202021520691 U CN202021520691 U CN 202021520691U CN 213070839 U CN213070839 U CN 213070839U
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- transformer
- volute
- cooling
- heat dissipation
- transformer oil
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- 238000001816 cooling Methods 0.000 title claims abstract description 24
- 230000017525 heat dissipation Effects 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Transformer Cooling (AREA)
Abstract
The utility model relates to a power transformer for accelerating transformer oil circulation and cooling, including the transformer body and locate the electronic heat abstractor of one side of the transformer body, the electronic heat abstractor includes the spiral case that can supply transformer oil to enter, locate the impeller in the spiral case and be used for driving the drive assembly that the impeller rotated, the spiral case has the feed liquor pipe that communicates with the liquid outlet of transformer body and the drain pipe that communicates with the inlet of transformer body; and a heat dissipation assembly used for dissipating heat of the volute is arranged on one side of the volute. The utility model discloses a be used for accelerating transformer oil circulation and refrigerated power transformer, the loop construction who realizes through spiral case and transformer body on the one hand to promote the loop speed by impeller and drive assembly, on the other hand passes through radiator unit and accelerates transformer oil's cooling rate, and overall structure is simple, and easy to produce, application scope is wide, and degree of automation is high.
Description
Technical Field
The utility model relates to a power transformer technical field specifically is a be used for accelerating transformer oil circulation and refrigerated power transformer.
Background
Generally, the power for realizing the circulation of the transformer oil comes from the temperature change of the transformer oil, the density change of the transformer oil, the expansion caused by heat and the contraction caused by cold, therefore, the speed of the circulation of the transformer oil and the speed of the heat exchange are very slow, and the cooling effect is poor. Therefore, the circulation speed and the heat exchange speed of the transformer oil need to be increased for reducing the temperature. For example, CN105405591A discloses an oil-immersed power transformer, which includes a safety air duct, a transformer box, an insulating sleeve, a transformer body, a heat exchange tube, an upper condenser, a lower condenser, a heat conduction disc, and a heat exchange fan, wherein the upper surface and the lower surface of the transformer body are provided with the heat conduction disc for heat conduction, the upper condenser is arranged above the transformer box, the lower condenser, an air inlet, and the heat exchange fan are arranged below the transformer box, the upper condenser, the lower condenser, and the heat conduction disc are connected through the heat exchange tube, and the side wall of the transformer box is provided with at least one air outlet. The device accelerates the cooling speed of the transformer oil through the condenser arranged in the transformer tank body, but the circulation speed of the transformer oil is also slow, and the cooling effect is not ideal.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be arranged in accelerating transformer oil circulation and refrigerated power transformer can solve partial defect among the prior art at least.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: a power transformer for accelerating the circulation and cooling of transformer oil comprises a transformer body and an electric heat dissipation device arranged on one side of the transformer body, wherein the electric heat dissipation device comprises a volute into which the transformer oil can enter, an impeller arranged in the volute and a driving assembly for driving the impeller to rotate, and the volute is provided with a liquid inlet pipe communicated with a liquid outlet of the transformer body and a liquid outlet pipe communicated with a liquid inlet of the transformer body; and a heat dissipation assembly used for dissipating heat of the volute is arranged on one side of the volute.
Furthermore, the electric heat dissipation device comprises a rectangular frame and a clamping cover arranged on one side of the rectangular frame, the volute is arranged in the rectangular frame, and the heat dissipation assembly is partially arranged in the clamping cover.
Further, drive assembly is including locating the outer three-phase AC motor of card cover and by three-phase AC motor orders about the pivoted transmission shaft, the transmission shaft runs through in proper order the card cover and the rectangle frame, just the transmission shaft stretches into the one end of rectangle frame extends to through the leak protection bearing in the spiral case and orders about the impeller rotates.
Further, the clamping cover is provided with an air inlet hole, and the rectangular frame is provided with an air outlet hole. Furthermore, the air outlet and the air inlet are provided with filter screens.
Further, the inner port of the air outlet hole is higher than the outer port.
Furthermore, the heat dissipation assembly comprises fan blades driven by the driving assembly to rotate, and wind generated by the fan blades is over against the volute.
Further, still include the heat dissipation cover of hugging closely the drive assembly installation.
Further, the heat dissipation sleeve comprises a hollow sleeve with a cut, a partition board is horizontally and fixedly connected to the inner cavity of the hollow sleeve, and two cavities separated by the partition board are respectively communicated with the liquid outlet pipe of the volute and the liquid inlet pipe of the volute.
Further, the heat dissipation sleeve and the volute are both copper plate structures coated with insulating heat conduction layers.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a be used for accelerating transformer oil circulation and refrigerated power transformer, the circulation structure who realizes through spiral case and transformer body on the one hand to promote circulation rate by impeller and drive assembly, on the other hand accelerates transformer oil's cooling rate through radiator unit, and overall structure is simple, easily production, and application scope is wide, and degree of automation is high.
Drawings
Fig. 1 is a schematic diagram of a power transformer for accelerating transformer oil circulation and cooling according to an embodiment of the present invention;
fig. 2 is a schematic view of an electric heat dissipation device of a power transformer for accelerating oil circulation and cooling of the transformer according to an embodiment of the present invention;
in the reference symbols: 1-transformer body, 2-electric heat dissipation device, 3-heat dissipation sleeve, 4-first pipeline, 5-second pipeline, 6-third pipeline, 7-fourth pipeline, 200-rectangular frame, 201-clamping cover, 202-three-phase alternating current motor, 203-air outlet, 204-liquid inlet, 205-liquid outlet, 206-volute, 207-impeller, 208-transmission shaft, 209-fan blade and 210-air inlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 and fig. 2, an embodiment of the present invention provides a power transformer for accelerating transformer oil circulation and cooling, including a transformer body 1 and an electric heat dissipation device 2 disposed on one side of the transformer body 1, where the electric heat dissipation device 2 includes a volute 206 for transformer oil to enter, an impeller 207 disposed in the volute 206, and a driving assembly for driving the impeller 207 to rotate, and the volute 206 has a liquid inlet pipe 204 communicated with a liquid outlet of the transformer body 1, and a liquid outlet pipe 205 communicated with a liquid inlet of the transformer body 1; a heat dissipation assembly for dissipating heat of the volute 206 is disposed at one side of the volute 206. In this embodiment, on one hand, the circulation structure is realized by the volute 206 and the transformer body 1, the impeller 207 and the driving assembly increase the circulation speed, and on the other hand, the cooling speed of the transformer oil is increased by the heat dissipation assembly. Specifically, the circulation can be realized by adopting the cooperation of pipelines, for convenience of description, the used pipelines can be respectively defined as a first pipeline 4, a second pipeline 5, a third pipeline 6 and a fourth pipeline 7, wherein the liquid inlet pipe 204 of the volute 206 is communicated with the inner cavity of the transformer body 1 through the second pipeline 5, the liquid outlet pipe 205 of the volute 206 is communicated with the inner cavity of the transformer body 1 through the third pipeline 6, so that the volute 206, the transformer body 1, the second pipeline 5 and the third pipeline 6 form a circulation structure, and the circulation rate can be greatly improved through the assistance of the impeller 207. Preferably, the liquid inlet pipe 204 is connected with the first pipe 4 and the second pipe 5 through a tee pipe and a flange, and the liquid outlet pipe 205 is connected with the third pipe 6 through a flange.
The following are specific examples:
in order to optimize the above solution, please refer to fig. 1 and fig. 2, the electric heat sink 2 includes a rectangular frame 200 and a card cover 201 disposed on one side of the rectangular frame 200, the volute 206 is disposed in the rectangular frame 200, and the heat sink assembly is partially disposed in the card cover 201. In this embodiment, the rectangular frame 200 is formed by fixing a cover plate with screws and a gasket, and the other end of the rectangular frame is hermetically fixed with a card cover 201.
In order to further optimize the above solution, referring to fig. 1 and fig. 2, the driving assembly includes a three-phase ac motor 202 disposed outside the card cover 201, and a transmission shaft 208 driven by the three-phase ac motor 202 to rotate, the transmission shaft 208 sequentially penetrates through the card cover 201 and the rectangular frame 200, and one end of the transmission shaft 208 extending into the rectangular frame 200 extends into the volute 206 through a leakage-proof bearing and drives the impeller 207 to rotate. In the present embodiment, the driving form is a three-phase ac motor 202, the three-phase ac motor 202 is horizontally and fixedly connected to the outer side of the card cover 201, and a motor shaft of the three-phase ac motor 202 rotatably extends to the inner side of the card cover 201 through a leakage-proof bearing. Wherein, the inner chamber of spiral case 206 matches and is connected with impeller 207 through the rotation of leak protection bearing, and the inner wall of card cover 201 passes through the horizontal rotation of supporting seat and is connected with transmission shaft 208, and the both ends of transmission shaft 208 pass through the shaft coupling and are connected with the pivot of impeller 207 and the motor shaft of three-phase AC motor 202 respectively, and the outer wall of transmission shaft 208 is fixed to be cup jointed flabellum 209.
Preferably, the three-phase ac motor 202 is connected with the mains supply through a temperature control switch, a wire and a transformation module, the temperature control switch is arranged at the upper end of a transformer iron core inside the transformer body 1, the volute 206, the impeller 207, the transmission shaft 208 and the three-phase ac motor 202 form a structure similar to a circulating pump through arranging a sealing piece, the liquid inlet pipe 204 and the liquid outlet pipe 205, and the three-phase ac motor belongs to the prior art, and when the temperature of the transformer oil sensed by the temperature control switch is higher than a self-set temperature threshold value, the power supply of.
As an optimized solution of the embodiment of the present invention, please refer to fig. 1 and fig. 2, the card cover 201 has an air inlet 210, and the rectangular frame 200 has an air outlet 203. In this embodiment, the transmission shaft 208 drives the fan blades 209 to rotate, and the air inlet holes 210 and the air outlet holes 203 are matched to form a heat dissipation air duct, so as to dissipate heat from the volute 206, thereby accelerating the cooling of the transformer oil. Preferably, the air outlet holes 203 and the air inlet holes 210 are provided with filter screens. Preferably, the inner port of the air outlet hole 203 is higher than the outer port, so as to prevent rainwater from entering and slow down the corrosion rate of the inner wall of the device.
As an optimized solution of the embodiment of the present invention, please refer to fig. 1 and fig. 2, the heat dissipation assembly includes a fan blade 209 driven by the driving assembly to rotate, and the wind generated by the fan blade 209 is directly opposite to the volute 206. In this embodiment, the power of the driving assembly can be used to drive the fan blades 209 to rotate, so as to cool the volute 206. Preferably, the fan blade 209 is sleeved on the transmission shaft 208 and driven to rotate by the three-phase ac motor 202.
As an optimized solution of the embodiment of the present invention, please refer to fig. 1 and fig. 2, the power transformer further includes a heat dissipation sleeve 3 attached to the driving assembly. In this embodiment, the heat dissipation sleeve 3 can further achieve the heat dissipation effect. Preferably, the heat dissipation sleeve 3 comprises a hollow sleeve with a cut, a partition board is horizontally and fixedly connected to an inner cavity of the hollow sleeve, and two chambers partitioned by the partition board are respectively communicated with the liquid outlet of the transformer body 1 and the liquid inlet pipe 204 of the volute 206. In the present embodiment, the heat dissipation sleeve 3 communicates with the scroll 206 through the first pipe 4 with a check valve. The third pipeline 6 is communicated with the heat dissipation sleeve 3 through a three-way pipe and a pressure reducing valve through a fourth pipeline 7, and the inner ends of the first pipeline 4 and the fourth pipeline 7 are symmetrically arranged through the partition plate. The internal pressure of the third pipeline 6 is reduced through the pressure reducing valve, the cooled transformer oil enters the inner cavity of the heat dissipation sleeve 3 through the fourth pipeline 7, the transformer oil enters from one side of the partition plate, and enters the liquid inlet pipe 204 of the volute 206 from the other side of the partition plate through the first pipeline 4 provided with the one-way valve, and circulating cooling is performed.
As the utility model discloses the optimization scheme, heat dissipation cover 3, first pipeline 4, second pipeline 5, third pipeline 6, fourth pipeline 7 and spiral case 206 all adopt the coating to have the copper material of insulating heat-conducting layer to make, utilize the heat conductivity height of copper, the convenient heat dissipation.
As the embodiment of the utility model provides an optimization scheme, please refer to fig. 1 and fig. 2, the outer wall of second pipeline 5 is connected with the straight tube of taking the spiral shell lid through the three-way pipe is perpendicular, can carry out transformer oil extraction through opening the spiral shell lid and detect, is favorable to in time changing.
As the optimization scheme of the embodiment of the utility model, please refer to fig. 1 and fig. 2, the inner of second pipeline 5 is provided with the gas collecting channel through integrative fixed manifold, and the gas collecting channel inversion is located inside transformer core upper end, and transformer oil rolls at the casing inner chamber from bottom to top and flows, is convenient for take out hot oil and carries out the heat dissipation treatment.
It is worth noting that: the three-phase ac motor 202, the temperature control switch and the voltage transformation module are all commercially available products, and belong to the existing mature technology, and the electrical connection relationship, the specific circuit structure and the model thereof are not repeated herein.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a power transformer for accelerating transformer oil circulation and refrigerated, includes the transformer body and locates the electronic heat abstractor of one side of transformer body, its characterized in that: the electric heat dissipation device comprises a volute for transformer oil to enter, an impeller arranged in the volute and a driving assembly for driving the impeller to rotate, wherein the volute is provided with a liquid inlet pipe communicated with a liquid outlet of the transformer body and a liquid outlet pipe communicated with a liquid inlet of the transformer body; and a heat dissipation assembly used for dissipating heat of the volute is arranged on one side of the volute.
2. A power transformer for faster circulation and cooling of transformer oil according to claim 1, characterized by: the electric heat dissipation device comprises a rectangular frame and a clamping cover arranged on one side of the rectangular frame, the volute is arranged in the rectangular frame, and the heat dissipation assembly is partially arranged in the clamping cover.
3. A power transformer for faster circulation and cooling of transformer oil according to claim 2, characterized by: drive assembly is including locating the outer three-phase alternating current motor of card cover and by three-phase alternating current motor orders about the pivoted transmission shaft, the transmission shaft runs through in proper order the card cover and the rectangle frame, just the transmission shaft stretches into the one end of rectangle frame extends to through the leak protection bearing in the spiral case and orders about the impeller rotates.
4. A power transformer for faster circulation and cooling of transformer oil according to claim 2, characterized by: the clamping cover is provided with an air inlet hole, and the rectangular frame is provided with an air outlet hole.
5. A power transformer for faster circulation and cooling of transformer oil according to claim 4, characterized by: the air outlet and the air inlet are both provided with filter screens.
6. A power transformer for faster circulation and cooling of transformer oil according to claim 4, characterized by: the inner port of the air outlet hole is higher than the outer port.
7. A power transformer for faster circulation and cooling of transformer oil according to claim 1, characterized by: the heat dissipation assembly comprises fan blades driven by the driving assembly to rotate, and wind generated by the fan blades is over against the volute.
8. A power transformer for faster circulation and cooling of transformer oil according to claim 1, characterized by: the heat dissipation device also comprises a heat dissipation sleeve tightly attached to the driving assembly.
9. A power transformer for faster circulation and cooling of transformer oil according to claim 8, characterized by: the heat dissipation sleeve comprises a hollow sleeve with a cut, a partition board is horizontally and fixedly connected to the inner cavity of the hollow sleeve, and two cavities separated by the partition board are respectively communicated with the liquid outlet pipe of the volute and the liquid inlet pipe of the volute.
10. A power transformer for faster circulation and cooling of transformer oil according to claim 8, characterized by: the heat dissipation sleeve and the volute are both copper plate structures coated with insulating heat conduction layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021520691.5U CN213070839U (en) | 2020-07-28 | 2020-07-28 | Power transformer for accelerating oil circulation and cooling of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021520691.5U CN213070839U (en) | 2020-07-28 | 2020-07-28 | Power transformer for accelerating oil circulation and cooling of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213070839U true CN213070839U (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021520691.5U Active CN213070839U (en) | 2020-07-28 | 2020-07-28 | Power transformer for accelerating oil circulation and cooling of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213070839U (en) |
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2020
- 2020-07-28 CN CN202021520691.5U patent/CN213070839U/en active Active
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