CN109036789B - High-efficient heat dissipation oil-immersed transformer subassembly - Google Patents
High-efficient heat dissipation oil-immersed transformer subassembly Download PDFInfo
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- CN109036789B CN109036789B CN201810803532.7A CN201810803532A CN109036789B CN 109036789 B CN109036789 B CN 109036789B CN 201810803532 A CN201810803532 A CN 201810803532A CN 109036789 B CN109036789 B CN 109036789B
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- 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
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- 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
- H01F27/085—Cooling by ambient air
-
- 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
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention discloses an efficient heat-dissipation oil-immersed transformer assembly which comprises a transformer body, an auxiliary oil tank, a first oil pump, a second oil pump and a base, wherein the auxiliary oil tank is arranged on the transformer body; the transformer body and the auxiliary oil tank are arranged on the base side by side, and a heat dissipation space is arranged between the transformer body and the auxiliary oil tank; the first oil pump is arranged at the top of the auxiliary oil tank; the second oil pump is arranged on the base; the top of the transformer body is provided with a ceramic column, and the middle part of the ceramic column is provided with an electric connecting rod; the periphery of the transformer body is provided with a plurality of rows of radiating fins; transformer oil is filled in the transformer body; a plurality of rows of baffles are obliquely arranged in the auxiliary oil tank; a plurality of heat dissipation plates are arranged on the outer side of the auxiliary oil tank; an oil storage tank is arranged at the lower part of the auxiliary oil tank; a layer of filter screen is arranged above the oil storage tank, and the filter screen is positioned below the lowest baffle. In the invention, the transformer has good cooling effect and high cooling efficiency, avoids equipment damage and is convenient to use.
Description
Technical Field
The invention relates to the field of transformers, in particular to a high-efficiency heat-dissipation oil-immersed transformer assembly.
Background
The transformer is one of important devices in industrial and mining enterprises and power systems, is often used for voltage lifting and the like in a high-voltage transformer substation, and is an oil-immersed transformer in a common form for a high-voltage-level transformer.
The transformer is an important element in the power system, and the voltage generated by the generator is limited by the insulation condition of the transformer and cannot be too high, generally about 6.3-2.7 KV.
When in use, in order to directly send the generated high-power electric energy to a far power utilization area, a step-up transformer is needed to raise the end voltage of the generator to a higher transmission voltage; after the electric energy is transmitted to the electricity utilization area, the transmission voltage is reduced to the distribution voltage by the step-down transformer, then the distribution voltage is transmitted to each electricity utilization area, and finally the voltage is reduced to the voltage level required by the user through the distribution transformer for the user to use.
In addition, in order to ensure the safety of power utilization and meet the voltage requirements of electric devices, transformers with special purposes such as self-accident transformers, mutual inductors, isolation transformers and various special transformers are also provided, and the transformers are quite wide in application.
However, the existing oil-immersed transformer box body is simple in structure, few in function, poor in heat dissipation performance and incapable of quickly dissipating heat inside a transformer.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides the efficient heat-dissipation oil-immersed transformer assembly which is good in cooling effect, high in cooling efficiency, capable of avoiding equipment damage and convenient to use.
The invention provides a high-efficiency heat-dissipation oil-immersed transformer assembly which comprises a transformer body, an auxiliary oil tank, a first oil pump, a second oil pump and a base, wherein the auxiliary oil tank is arranged on the transformer body;
the transformer body and the auxiliary oil tank are arranged on the base side by side, and a heat dissipation space is arranged between the transformer body and the auxiliary oil tank; the first oil pump is arranged at the top of the auxiliary oil tank, a liquid inlet pipeline of the first oil pump is communicated with the bottom of the transformer body, and a liquid outlet pipeline of the first oil pump is communicated with the top of the auxiliary oil tank; the second oil pump is arranged at the bottom of the auxiliary oil tank, a liquid inlet pipeline of the second oil pump is communicated with the bottom of the auxiliary oil tank, and a liquid outlet pipeline of the second oil pump is communicated with the top of the transformer body;
the top of the transformer body is provided with a ceramic column, and the middle part of the ceramic column is provided with an electric connecting rod; the periphery of the transformer body is provided with a plurality of rows of radiating fins; transformer oil is filled in the transformer body; the upper part of the transformer body is communicated with the air inlet end of the pressure relief pipe, the air outlet end of the pressure relief pipe is communicated with the upper part of the auxiliary oil tank, and the pressure relief pipe is provided with a pressure relief valve;
a plurality of rows of baffles are obliquely arranged in the auxiliary oil tank, and S-shaped channels are formed among the plurality of rows of baffles; a plurality of heat dissipation plates are arranged on the outer side of the auxiliary oil tank; an oil storage tank is arranged at the lower part of the auxiliary oil tank, and transformer oil is filled in the oil storage tank, wherein a liquid inlet pipeline of the second oil pump penetrates through the auxiliary oil tank and extends into the bottom of the oil storage tank;
a layer of filter screen is arranged above the oil storage tank, and the filter screen is positioned below the lowest baffle.
Preferably, the top of the auxiliary oil tank is provided with a vertically downward flow limiting plate, and a space for flowing out of the transformer oil is arranged between the flow limiting plate and the uppermost baffle.
Preferably, the heat dissipation plates are arranged in one-to-one correspondence with the baffles.
Preferably, a connecting block for heat dissipation is arranged between the transformer body and the auxiliary oil tank.
Preferably, the oil storage amount inside the oil storage tank is not less than half of the total oil amount inside the transformer body.
Preferably, a plurality of auxiliary oil tanks are arranged side by side; the liquid outlet pipeline of the first oil pump is communicated with the tops of the auxiliary oil tanks respectively, and the liquid inlet pipeline of the second oil pump is communicated with the bottoms of the auxiliary oil tanks respectively.
Preferably, the auxiliary oil tank is provided with an air exhaust and pressure relief device.
According to the invention, the first oil pump and the second oil pump are started to change oil in the transformer body, so that the transformer oil in the transformer body is recycled, and the oil temperature in the transformer body is reduced by changing oil. Wherein, the oil storage tank top sets up the one deck filter screen, and the filter screen is located the baffle below of below, and the filter screen filters transformer oil, is favorable to cleaing away the inside debris of transformer oil, prevents to cause the damage to the inside electronic component of transformer body.
In the invention, when the internal pressure of the transformer body is overlarge due to gasification or thermal expansion of transformer oil in the transformer body and the like, the pressure release valve is opened to release the pressure in the transformer body; inside the pressure release in-process gasified transformer oil spout into the auxiliary fuel tank to at the inside condensation that carries on of auxiliary fuel tank, avoided the waste of raw materials, avoided wanting external direct emission to cause the pollution, simultaneously, make the transformer body be in relative encapsulated situation, avoided external dust, steam etc. to get into the inside situation of transformer body, avoid equipment to damage.
In the invention, the transformer oil enters the auxiliary oil tank from the top of the auxiliary oil tank and gradually slides downwards along the S-shaped channel under the action of the baffle; in the gliding process, the transformer oil exchanges heat with air inside the auxiliary oil tank, so that the transformer oil is rapidly cooled; after the oil change between the transformer body and the auxiliary oil tank is finished, the transformer oil is cooled and radiated in the auxiliary oil tank, and the micro-flaw oil change is ready, so that the sustainable cooling inside the transformer body is realized, and a good cooling effect is achieved. The baffle is obliquely arranged, so that the situation that the transformer oil slides down at an excessively high speed is avoided while the transformer oil is ensured to slide without obstruction, and the transformer oil is ensured to have enough time for heat exchange, so that the transformer oil is cooled as far as possible.
Drawings
Fig. 1 is a schematic structural diagram of an efficient heat dissipation oil-immersed transformer assembly according to the present invention.
Fig. 2 is a schematic structural diagram of an auxiliary oil tank in the high-efficiency heat-dissipation oil-immersed transformer assembly provided by the invention.
Detailed Description
As shown in fig. 1, fig. 1 is a schematic structural diagram of an efficient heat dissipation oil-immersed transformer assembly provided by the present invention; fig. 2 is a schematic structural diagram of an auxiliary oil tank in the high-efficiency heat-dissipation oil-immersed transformer assembly provided by the invention.
Referring to fig. 1-2, the invention provides a high-efficiency heat-dissipation oil-immersed transformer assembly, which comprises a transformer body 1, an auxiliary oil tank 4, a first oil pump 6, a second oil pump 7 and a base 5;
the transformer body 1 and the auxiliary oil tank 4 are arranged on the base 5 side by side, and a heat dissipation space is arranged between the transformer body 1 and the auxiliary oil tank 4; the first oil pump 6 is arranged at the top of the auxiliary oil tank 4, a liquid inlet pipeline of the first oil pump 6 is communicated with the bottom of the transformer body 1, and a liquid outlet pipeline of the first oil pump 6 is communicated with the top of the auxiliary oil tank 4; the second oil pump 7 is arranged at the bottom of the auxiliary oil tank 4, a liquid inlet pipeline of the second oil pump 7 is communicated with the bottom of the auxiliary oil tank 4, and a liquid outlet pipeline of the second oil pump 7 is communicated with the top of the transformer body 1;
the top of the transformer body 1 is provided with a ceramic column 3, and the middle part of the ceramic column 3 is provided with an electric connecting rod; the periphery of the transformer body 1 is provided with a plurality of rows of radiating fins 2; transformer oil is filled in the transformer body 1; the upper part of the transformer body 1 is communicated with the air inlet end of the pressure relief pipe 15, the air outlet end of the pressure relief pipe 15 is communicated with the upper part of the auxiliary oil tank 4, and the pressure relief pipe 15 is provided with a pressure relief valve;
a plurality of rows of baffles 8 are obliquely arranged inside the auxiliary oil tank 4, and S-shaped channels 13 are formed among the rows of baffles 8; a plurality of heat dissipation plates 9 are arranged outside the auxiliary oil tank 4; an oil storage tank 11 is arranged at the lower part of the auxiliary oil tank 4, transformer oil is filled in the oil storage tank 11, and a liquid inlet pipeline of the second oil pump 7 penetrates through the auxiliary oil tank 4 and extends into the bottom of the oil storage tank 11;
a layer of filter screen 12 is arranged above the oil storage tank 11, and the filter screen 12 is positioned below the lowest baffle 8.
In the embodiment, when the temperature inside the transformer body 1 is too high, the first oil pump 6 and the second oil pump 7 are started to change the oil inside the transformer body 1; high-temperature oil in the transformer body 1 flows out from the bottom of the transformer body 1 under the action of the first oil pump 6 and enters the auxiliary oil tank 4 from the top of the auxiliary oil tank 4; the transformer oil in the oil storage tank 11 of the auxiliary oil tank 4 flows out of the oil storage tank 11 under the action of the second oil pump 7 and enters the transformer body 1 from the top of the transformer body 1; the recycling of the transformer oil in the transformer body 1 is realized, and the reduction of the oil temperature in the transformer body 1 is realized through oil change. Wherein, 11 tops in oil storage tank set up one deck filter screen 12, and filter screen 12 is located baffle 8 below of below, and filter screen 12 filters transformer oil, is favorable to cleaing away the inside debris of transformer oil, prevents to cause the damage to the electronic component of transformer body 1 inside.
In the embodiment, the upper part of the transformer body 1 is communicated with the air inlet end of the pressure relief pipe 15, the air outlet end of the pressure relief pipe 15 is communicated with the upper part of the auxiliary oil tank 4, and the pressure relief pipe 15 is provided with a pressure relief valve; when the pressure in the transformer body 1 is too high due to gasification or thermal expansion of transformer oil in the transformer body 1, the pressure release valve is opened to release the pressure in the transformer body 1; inside the pressure release in-process gasified transformer oil spout into auxiliary fuel tank 4 to condense in auxiliary fuel tank 4 is inside, avoided the waste of raw materials, avoided wanting the external pollution that directly discharges and cause, simultaneously, make transformer body 1 be in relative encapsulated situation, avoided external dust, steam etc. to get into the inside situation of transformer body 1, avoid equipment to damage.
In the embodiment, the transformer oil enters the auxiliary oil tank 4 from the top of the auxiliary oil tank 4 and gradually slides downwards along the S-shaped channel 13 under the action of the baffle 8; in the gliding process, the transformer oil exchanges heat with air inside the auxiliary oil tank 4, so that the transformer oil is rapidly cooled; after the oil change between the transformer body 1 and the auxiliary oil tank 4 is finished, the transformer oil is cooled and radiated in the auxiliary oil tank 4, and the micro-flaw oil change is ready, so that the sustainable cooling inside the transformer body 1 is realized, and a good cooling effect is achieved. The baffle 8 is obliquely arranged, the inclined included angle is 5-10 degrees, the situation that the transformer oil slides down at an excessively high speed is avoided while the transformer oil is ensured to slide without obstruction, and therefore the transformer oil is ensured to have enough time for heat exchange, and the transformer oil is cooled as far as possible.
In specific implementation mode, the top of auxiliary oil tank 4 is equipped with vertical decurrent current-limiting plate 10, is equipped with certain space that supplies transformer oil to flow out between current-limiting plate 10 and the baffle 8 of the top, guarantees that transformer oil sends out at the uniform velocity and flows out, guarantees transformer oil's radiating effect, and then guarantees the cooling effect to transformer body 1 inside.
Further, the heat dissipation plates 9 are arranged in one-to-one correspondence with the baffle plates 8; wherein, baffle 8 is direct to carry out the heat exchange with transformer oil, and heating panel 9 can dispel the heat to baffle 8 to improve the heat exchange efficiency between baffle 8 and the transformer oil, improve the radiating effect of transformer oil on baffle 8.
Further, a connecting block 14 for heat dissipation is arranged between the transformer body 1 and the auxiliary oil tank 4; when the temperature inside the transformer body 1 is too high, the temperature is transmitted to the connection block 14, and the connection block 14 receives a large amount of heat energy, thereby reducing the overall temperature of the transformer body 1.
Further, the oil storage capacity in the oil storage tank 11 is not less than half of the total oil amount in the transformer body 1, so that the effective cooling of the interior of the transformer body 1 is achieved.
Furthermore, a plurality of auxiliary oil tanks 4 are arranged side by side; the liquid outlet pipeline of the first oil pump 6 is respectively communicated with the tops of the auxiliary oil tanks 4, and the liquid inlet pipeline of the second oil pump 7 is respectively communicated with the bottoms of the auxiliary oil tanks 4; a plurality of auxiliary fuel tanks 4 change oil with 1 inside transformer body in proper order to reduce 1 inside temperature of transformer body, improve 1 inside cooling effect of transformer body and cooling rate.
Furthermore, be equipped with the pressure release equipment of exhausting on the auxiliary fuel tank 4 for carry out the pressure release to auxiliary fuel tank 4, prevent the equipment damage that the too big cause of auxiliary fuel tank 4 internal pressure.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A high-efficiency heat-dissipation oil-immersed transformer assembly is characterized by comprising a transformer body (1), an auxiliary oil tank (4), a first oil pump (6), a second oil pump (7) and a base (5);
the transformer body (1) and the auxiliary oil tank (4) are arranged on the base (5) side by side, and a heat dissipation space is arranged between the transformer body (1) and the auxiliary oil tank (4); the first oil pump (6) is arranged at the top of the auxiliary oil tank (4), a liquid inlet pipeline of the first oil pump (6) is communicated with the bottom of the transformer body (1), and a liquid outlet pipeline of the first oil pump (6) is communicated with the top of the auxiliary oil tank (4); the second oil pump (7) is arranged at the bottom of the auxiliary oil tank (4), a liquid inlet pipeline of the second oil pump (7) is communicated with the bottom of the auxiliary oil tank (4), and a liquid outlet pipeline of the second oil pump (7) is communicated with the top of the transformer body (1);
the top of the transformer body (1) is provided with a ceramic column (3), and the middle part of the ceramic column (3) is provided with an electric connecting rod; the periphery of the transformer body (1) is provided with a plurality of rows of radiating fins (2); transformer oil is filled in the transformer body (1); the upper part of the transformer body (1) is communicated with the air inlet end of the pressure relief pipe (15), the air outlet end of the pressure relief pipe (15) is communicated with the upper part of the auxiliary oil tank (4), and the pressure relief pipe (15) is provided with a pressure relief valve;
a plurality of rows of baffles (8) are obliquely arranged in the auxiliary oil tank (4), and S-shaped channels (13) are formed among the plurality of rows of baffles (8); a plurality of heat dissipation plates (9) are arranged on the outer side of the auxiliary oil tank (4); an oil storage tank (11) is arranged at the lower part of the auxiliary oil tank (4), transformer oil is filled in the oil storage tank (11), and a liquid inlet pipeline of the second oil pump (7) penetrates through the auxiliary oil tank (4) and extends into the bottom of the oil storage tank (11);
a layer of filter screen (12) is arranged above the oil storage tank (11), and the filter screen (12) is positioned below the baffle (8) at the lowest part.
2. An oil-immersed transformer assembly with high efficiency and heat dissipation according to claim 1, wherein the top of the auxiliary oil tank (4) is provided with a flow limiting plate (10) which faces vertically downwards, and a space for flowing out transformer oil is provided between the flow limiting plate (10) and the uppermost baffle (8).
3. An oil-filled transformer assembly with high efficiency for heat dissipation according to claim 1, characterized in that the heat dissipation plates (9) are arranged in one-to-one correspondence with the baffles (8).
4. An oil-filled transformer assembly with high efficiency for heat dissipation according to claim 1, characterized in that a connection block (14) for heat dissipation is arranged between the transformer body (1) and the auxiliary oil tank (4).
5. An oil filled transformer assembly with high efficiency for heat dissipation according to claim 1, characterized in that the oil reservoir inside the oil reservoir (11) is not less than half of the total oil volume inside the transformer body (1).
6. An oil-filled transformer assembly with high efficiency for heat dissipation according to claim 1, characterized in that the number of auxiliary oil tanks (4) is multiple and arranged side by side; the liquid outlet pipeline of the first oil pump (6) is respectively communicated with the tops of the auxiliary oil tanks (4), and the liquid inlet pipeline of the second oil pump (7) is respectively communicated with the bottoms of the auxiliary oil tanks (4).
7. An efficient heat dissipation oil-filled transformer assembly according to claim 1, characterized in that the auxiliary oil tank (4) is provided with a venting and pressure relief device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810803532.7A CN109036789B (en) | 2018-07-20 | 2018-07-20 | High-efficient heat dissipation oil-immersed transformer subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810803532.7A CN109036789B (en) | 2018-07-20 | 2018-07-20 | High-efficient heat dissipation oil-immersed transformer subassembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109036789A CN109036789A (en) | 2018-12-18 |
| CN109036789B true CN109036789B (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810803532.7A Active CN109036789B (en) | 2018-07-20 | 2018-07-20 | High-efficient heat dissipation oil-immersed transformer subassembly |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007317931A (en) * | 2006-05-26 | 2007-12-06 | Toshiba Corp | Electromagnetic induction equipment |
| CN206991891U (en) * | 2017-05-15 | 2018-02-09 | 天晟电气股份有限公司 | A kind of oil-filled transformer of more fuel tank radiatings |
| CN207425530U (en) * | 2017-11-10 | 2018-05-29 | 福建雄风电气有限公司 | A kind of oil-immersed type transformer convenient for heat dissipation |
| CN207474225U (en) * | 2017-12-02 | 2018-06-08 | 江苏中天伯乐达变压器有限公司 | A kind of oil-immersed transformer of ocean platform |
| CN207529779U (en) * | 2017-12-20 | 2018-06-22 | 江西江控电气有限公司 | A kind of oil-immersed power transformer |
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2018
- 2018-07-20 CN CN201810803532.7A patent/CN109036789B/en active Active
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