CN116759205A - Cooling system of oil immersed transformer - Google Patents
Cooling system of oil immersed transformer Download PDFInfo
- Publication number
- CN116759205A CN116759205A CN202310916894.8A CN202310916894A CN116759205A CN 116759205 A CN116759205 A CN 116759205A CN 202310916894 A CN202310916894 A CN 202310916894A CN 116759205 A CN116759205 A CN 116759205A
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- China
- Prior art keywords
- cooling
- oil
- plate
- cooling plate
- immersed transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 151
- 230000017525 heat dissipation Effects 0.000 claims description 8
- 238000007654 immersion Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 239000003129 oil well Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 230000009466 transformation Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/16—Water cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/20—Cooling by special gases or non-ambient air
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention relates to the field of cooling systems, and particularly discloses a cooling system of an oil immersed transformer, which comprises the immersed transformer and a cooling box, wherein the top of the cooling box is connected with a transformation oil way of the immersed transformer through an oil outlet pipe with an oil pump, the bottom of the cooling box is connected with the transformation oil way of the immersed transformer through an oil inlet pipe with an oil pump, a first cooling plate and a second cooling plate are alternately arranged in the cooling box from top to bottom, a first strip groove is formed in the middle of the first cooling plate, two sides of the top surface of the first cooling plate are obliquely arranged towards the first strip groove, a second strip groove is formed between two sides of the second cooling plate and the cooling box, and the middle of the second cooling plate is obliquely arranged towards the two sides; according to the invention, the transformer oil flows downwards from the top of the cooling tank, passes through the first strip groove and the second strip groove, sequentially flows through the surfaces of the first cooling plate and the second cooling plate which are arranged from top to bottom, cools the transformer oil, has a good cooling effect and high cooling efficiency, and can achieve the purpose of rapid cooling.
Description
Technical Field
The invention relates to the field of cooling systems, in particular to a cooling system of an oil immersed transformer.
Background
The body (windings and iron core) of the oil immersed transformer is arranged in an oil tank filled with transformer oil, and the oil tank is welded by steel plates. The transformer oil used as the heat exchange medium of the transformer flows in a convection circulation way through the change of the buoyancy and the gravity of the oil in the closed oil circuit system of the transformer. In the long-term use process of the transformer, transformer oil needs to be kept in a low-temperature state, so that the transformer oil needs to be cooled, as disclosed in patent application number 201922159872.3, a cooling system of the oil immersed transformer is specifically disclosed, the cooling system comprises a cooling tank, an oil pump and an oil delivery pump, wherein the cooling tank is divided into an air cooling radiating area and a diversion radiating area on the left side and the right side by a vertical cooling plate, an oil pumping port of the oil pump is connected with one end of the oil pumping pipe, the other end of the oil pumping pipe is provided with a connecting part connected into a transformation oil way of the oil immersed transformer, an oil outlet of the oil pump is connected into the inner bottom part of the diversion radiating area of the cooling tank through the oil pumping pipe, the top part of the side wall of the diversion radiating area of the cooling tank is connected with one end of the oil delivery pipe, the other end of the oil delivery pipe is provided with a connecting part connected into the transformation oil way of the oil immersed transformer, and the oil delivery pump is arranged on the oil delivery pipe; a diversion heat dissipation area of the cooling pool is internally provided with a diversion heat dissipation plate, an air cooling heat dissipation area of the cooling pool is internally provided with a fan group and a wind shield, the wind shield is provided with a horn-shaped pressurizing hole, one end of the pressurizing hole with smaller aperture is close to the cooling plate, and the wind direction of the fan group faces the wind shield; the cooling plate, the heat conducting plate and the cooling pool are all made of metal materials; in this scheme, flow into the cooling tank to vary voltage oil, heat transfer back and go out the heat through the cooling plate through the heat conduction plate to after the forced air cooling, hot-blast unable quick effluvium, cooling efficiency is low, can't reach quick refrigerated purpose.
Disclosure of Invention
Aiming at the existing problems, the invention provides a cooling system of an oil immersed transformer, which can effectively solve the problems in the background technology.
In order to solve the problems, the invention adopts the following technical scheme: the utility model provides a cooling system of oil-immersed transformer, includes immersion transformer and cooler bin, the top of cooler bin is connected with immersion transformer's vary voltage oil circuit one end through the play oil pipe that has the oil-well pump, the bottom of cooler bin is connected with immersion transformer's vary voltage oil circuit other end through the income oil pipe that has the oil feed pump, the cooling incasement is crisscross from the top down to be provided with cooling plate one and cooling plate two, the middle part of cooling plate one is formed with bar groove one and cooling plate one's top surface both sides are towards bar groove one slope setting, form bar groove two and cooling plate two's middle part between both sides and the cooler bin towards both sides slope setting.
As still further aspects of the invention: the top of cooling tank is provided with the board case, board case and oil outlet pipe connection, be provided with a plurality of oil-out on the board case.
As still further aspects of the invention: the inside of cooling plate one and cooling plate two is cavity structure, and connects through the conveyer pipe that staggers the setting between two adjacent cooling plate one and the cooling plate two, the conveyer pipe links together the inside cavity of cooling plate one and cooling plate two in proper order, forms the conveying passageway of heat transfer medium, the exit of conveying passageway sets up inlet tube and outlet tube respectively.
As still further aspects of the invention: the heat exchange medium is in a liquid state or a gas state.
As still further aspects of the invention: the first cooling plate comprises two inclined first heat conducting plates, a first strip groove is formed between the first heat conducting plates, and the cavity structures in the first heat conducting plates are connected through a communicating pipe.
As still further aspects of the invention: the heat conducting plates I are internally and fixedly connected with a plurality of parting strips I, gaps I are formed between one ends of the parting strips I and the heat conducting plates I, and the gaps I are arranged in a staggered mode to form S-shaped channels I.
As still further aspects of the invention: the cooling plate is characterized in that a plurality of second division bars are fixedly connected inside the second cooling plate, gaps are formed between one ends of the second division bars and the second heat conducting plate, and the gaps are staggered to form an S-shaped channel II.
As still further aspects of the invention: the inclination angle of the first heat conducting plate and the second cooling plate is 3-5 degrees.
As still further aspects of the invention: the inlet and the outlet of the conveying pipe are respectively arranged at one end of the first heat conducting plate or the second cooling plate, which is far away from the first gap or the second gap.
As still further aspects of the invention: and the outer side of the cooling box is fixedly connected with a plurality of parallel radiating fins.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the transformer oil pumped out of the transformer oil way flows downwards from the top of the cooling tank, passes through the first strip groove and the second strip groove, sequentially flows through the surfaces of the first cooling plate and the second cooling plate which are arranged from top to bottom, cools the transformer oil, has a good cooling effect and high cooling efficiency, and can achieve the purpose of rapid cooling.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a schematic plan view of a cooling box according to the present invention;
FIG. 3 is a schematic view of the connection between the first cooling plate and the second cooling plate in the present invention;
FIG. 4 is a schematic perspective view of a cooling plate according to the present invention;
FIG. 5 is a schematic view of a planar structure of a cooling plate according to the present invention;
FIG. 6 is a schematic view of a two-dimensional structure of a cooling plate according to the present invention;
fig. 7 is a schematic view showing a two-plane structure of the cooling plate according to the present invention.
In the figure: 1. a dip-type transformer; 2. a cooling box; 3. an oil pump; 4. an oil outlet pipe; 5. an oil feed pump; 6. an oil inlet pipe; 7. cooling the first plate; 701. a first heat conducting plate; 702. a communicating pipe; 703. a first parting bead; 704. a first gap; 705. s-shaped channel I; 8. cooling the second plate; 801. a second parting bead; 802. a second gap; 803. s-shaped channel II; 9. a first strip groove; 10. a second strip groove; 11. a heat radiation fin; 12. a board box; 13. an oil outlet; 14. a delivery tube; 15. an inlet pipe; 16. an outlet tube.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-7, this embodiment provides a cooling system of an oil immersed transformer, including an immersed transformer 1 and a cooling tank 2, the top of the cooling tank 2 is connected with one end of a transforming oil path of the immersed transformer 1 through an oil outlet pipe 4 with an oil pump 3, the bottom of the cooling tank 2 is connected with the other end of the transforming oil path of the immersed transformer 1 through an oil inlet pipe 6 with an oil pump 5, a first cooling plate 7 and a second cooling plate 8 are alternately arranged in the cooling tank 2 from top to bottom, a first strip groove 9 is formed in the middle of the first cooling plate 7, two sides of the top surface of the first cooling plate 7 are obliquely arranged towards the first strip groove 9, a second strip groove 10 is formed between two sides of the second cooling plate 8 and the cooling tank 2, and the middle of the second cooling plate 8 is obliquely arranged towards two sides.
In order to improve the heat dissipation in the cooling tank 2, the outer side of the cooling tank 2 is fixedly connected with a plurality of parallel heat dissipation fins 11, the heat dissipation fins 11 can be arranged around the cooling tank 2, and the heat dissipation fins 11 are utilized to rapidly dissipate the heat in the cooling tank 2, so that the cooling effect of transformer oil is further improved.
The top of cooling tank 2 is provided with board case 12, and board case 12 is connected with play oil pipe 4, is provided with a plurality of oil-out 13 on the board case 12, and oil-out 13 is the matrix distribution, and in the transformer oil was got into board case 12 after coming out from play oil pipe 4, the scattered discharge transformer oil of utilization a plurality of oil-out 13 avoided transformer oil to concentrate to fall into the cooling plate surface, further improved the cooling effect.
As shown in fig. 1-7, the first cooling plate 7 and the second cooling plate 8 are both in a cavity structure, and two adjacent first cooling plates 7 and second cooling plates 8 are connected through conveying pipes 14 arranged in a staggered manner, the conveying pipes 14 sequentially connect the cavities in the first cooling plate 7 and the second cooling plate 8 together to form a conveying channel of a heat exchange medium, and an inlet pipe 15 and an outlet pipe 16 are respectively arranged at an inlet and an outlet of the conveying channel. The inlet pipe 15 and the outlet pipe 16 are connected with a cooling medium conveying device, the first cooling plate 7 and the second cooling plate 8 are made of metal materials with good heat exchange performance, such as stainless steel, copper and other materials with heat exchange performance, and liquid or gas can be selected as the heat exchange medium. The liquid state can be selected from cooling water, other cooling liquid media such as cooling oil, and the gaseous state can be selected from other cooling gaseous media such as cold air, nitrogen and the like.
As shown in fig. 4 to 5, the first cooling plate 7 includes two inclined first heat-conducting plates 701, a strip groove 9 is formed between the two first heat-conducting plates 701, and the cavity structures in the two first heat-conducting plates 701 are connected by a connection pipe 702. The inside of the two heat conduction plates 701 is fixedly connected with a plurality of parting strips 703, a gap 704 is reserved between one end of each parting strip 703 and the heat conduction plate 701, the gaps 704 are arranged in a staggered mode to form an S-shaped channel 705, the parting strips 703 on the two heat conduction plates 701 are symmetrically arranged, the communicating pipe 702 is arranged at one end of each heat conduction plate 701 far away from the corresponding gap 704, after a heat exchange medium enters the S-shaped channel 705 from one end of one heat conduction plate 701, the heat exchange medium flows into the other heat conduction plate 701 from the communicating pipe 702 after passing through the corresponding gap 704, and flows out from one end of the other heat conduction plate 701 far away from the communicating pipe 702, so that the flow path of the heat exchange medium is improved to the greatest extent, and the heat exchange effect is improved.
As shown in fig. 5-6, the second cooling plate 8 is fixedly connected with a plurality of second partition strips 801, and a second gap 802 is formed between one end of the second partition strips 801 and the second heat conducting plate, the second gaps 802 are staggered to form a second S-shaped channel 803, and the heat exchange medium flows in from one end of the second S-shaped channel 803 and flows out from the other end.
As shown in fig. 2, the first heat conducting plate 701 and the second cooling plate 8 have an inclination angle of 3-5 °, and the inclination angle is preferably 4 °, so that the transformer oil can smoothly flow on the first heat conducting plate 701 and the second cooling plate 8, and the flow rate can be controlled, so as to ensure the cooling effect, and the cleaning angle can be increased, so that the flow rate is increased, but the cooling effect is reduced.
The inlet and outlet of the conveying pipe 14 are respectively arranged at one end of the first heat-conducting plate 701 or the second cooling plate 8 far away from the first gap 704 or the second gap 802, so that the heat exchange medium can flow in from the inlet of the first S-shaped channel 705 or the second S-shaped channel 803 and flow out from the outlet.
The working principle of the invention is as follows: after transformer oil in the oil-transforming oil way is pumped out by the oil pump, the transformer oil is discharged into the plate box 12, flows through the surfaces of the first cooling plate 7 and the second cooling plate 8 which are arranged from top to bottom in sequence through the first strip groove 9 and the second strip groove 10, and meanwhile, heat exchange media are introduced into the first cooling plate 7 and the second cooling plate 8 and exchange heat with the transformer oil, so that the transformer oil is cooled, and the transformer oil is subjected to multi-layer multi-time heat exchange, so that the cooling effect is good, the cooling efficiency is high, and the purpose of rapid cooling can be achieved.
It is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, and further, that the terms "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 cooling system of oil-immersed transformer, includes immersion transformer and cooler bin, the top of cooler bin is connected with immersion transformer's vary voltage oil circuit one end through the play oil pipe that has the oil-well pump, the bottom of cooler bin is connected with immersion transformer's vary voltage oil circuit other end through the income oil pipe that has the oil feed pump, a serial communication port, the cooling incasement is from the top down crisscross to be provided with cooling plate one and cooling plate two, the middle part of cooling plate one is formed with the top surface both sides of bar groove one and cooling plate one and inclines towards bar groove one and set up, form bar groove two and the middle part of cooling plate two between cooling plate two and the cooler bin and incline towards both sides and set up.
2. The cooling system of an oil immersed transformer according to claim 1, wherein a plate box is arranged at the top of the cooling box, the plate box is connected with an oil outlet pipe, and a plurality of oil outlets are arranged on the plate box.
3. The cooling system of an oil immersed transformer according to claim 1, wherein the first cooling plate and the second cooling plate are of a cavity structure, two adjacent first cooling plates and second cooling plates are connected through conveying pipes which are arranged in a staggered mode, the conveying pipes are used for connecting the cavities in the first cooling plate and the second cooling plate together in sequence to form a conveying channel of a heat exchange medium, and an inlet pipe and an outlet pipe are respectively arranged at an inlet and an outlet of the conveying channel.
4. A cooling system for an oil immersed transformer according to claim 3, wherein the heat exchange medium is in a liquid or gaseous state.
5. The cooling system of an oil immersed transformer according to claim 1, wherein the first cooling plate comprises two inclined first heat conducting plates, a strip groove is formed between the first heat conducting plates, and a cavity structure in the first heat conducting plates is connected through a communicating pipe.
6. The cooling system of an oil immersed transformer according to claim 5, wherein a plurality of first division bars are fixedly connected to the inside of the first heat conducting plates, gaps are formed between one ends of the first division bars and the first heat conducting plates, and the gaps are staggered to form an S-shaped channel.
7. The cooling system of an oil immersed transformer according to claim 6, wherein a plurality of second division bars are fixedly connected inside the second cooling plate, gaps are formed between one ends of the second division bars and the second heat conducting plate, and the gaps are staggered to form second S-shaped channels.
8. The cooling system of an oil immersed transformer according to claim 7, wherein the first heat conducting plate and the second cooling plate have an inclination angle of 3-5 °.
9. The cooling system of an oil immersed transformer according to claim 8, wherein the inlet and outlet of the conveying pipe are respectively arranged at one end of the first heat conducting plate or the second cooling plate far away from the first gap or the second gap.
10. The cooling system of an oil immersed transformer according to claim 1, wherein the outer layer of the cooling tank is fixedly connected with a plurality of parallel heat dissipation fins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310916894.8A CN116759205A (en) | 2023-07-24 | 2023-07-24 | Cooling system of oil immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310916894.8A CN116759205A (en) | 2023-07-24 | 2023-07-24 | Cooling system of oil immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116759205A true CN116759205A (en) | 2023-09-15 |
Family
ID=87951507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310916894.8A Pending CN116759205A (en) | 2023-07-24 | 2023-07-24 | Cooling system of oil immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116759205A (en) |
-
2023
- 2023-07-24 CN CN202310916894.8A patent/CN116759205A/en active Pending
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