CN105261449A - Oil-cooled transformer with bundle-type radiator - Google Patents
Oil-cooled transformer with bundle-type radiator Download PDFInfo
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- CN105261449A CN105261449A CN201510701580.1A CN201510701580A CN105261449A CN 105261449 A CN105261449 A CN 105261449A CN 201510701580 A CN201510701580 A CN 201510701580A CN 105261449 A CN105261449 A CN 105261449A
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- heat
- transformer
- oil
- heat exchange
- spiral fin
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Abstract
The invention discloses an oil-cooled transformer with a bundle-type radiator. The bundle-type radiator comprises a plurality of radiator heat exchange bundles, wherein the plurality of radiator heat exchanger bundles are arranged at two sides of the transformer side by side; the upper ends of the heat exchange bundles are communicated with an upper oil outlet pipe of the transformer; the lower ends of the heat exchange bundles are communicated with a lower oil return pipe of a heat exchanger; air-side spiral fins are spirally distributed on the circumference surfaces of the outer sides of the heat exchange bundles; oil-side spiral fins are arranged on the inner sides of the heat exchange bundles; the air-side spiral fins are connected to the heat exchange bundles in a welding manner; and through holes are evenly processed in the air-side spiral fins and the oil-side spiral fins. According to the oil-cooled transformer with the bundle radiator, disturbance of liquid on the oil side is fully increased; heat exchange is strengthened; meanwhile, a punching treatment is carried out on the spiral fins on the inside and the outside of the heat exchange bundles; boundary layers formed on the spiral fins are destroyed; heat exchange is strengthened; and the heat exchange efficiency of the bundle-type radiator can reach about 8 times of that of a common tube-type radiator.
Description
Technical field
The present invention relates to the field of radiating of strengthening transformer, be specifically related to a kind of oil cooled transformer with bundled tube heat abstractor, especially for the forced oil-circulation wind-cooling heat dissipating mode of heat dissipation of high-power transformer.
Background technology
Along with the raising of living standards of the people, the demand of people to the energy increases gradually, especially day by day increases the demand of electric energy, and electric power system is progressively to Large Copacity, bulk power grid, ultra high voltage future development.Transformer is as one of electric equipment important in electric power system, and the reliability of its work becomes and is even more important.When transformer runs, due to the existence of resistance and magnetic resistance, unshakable in one's determination, coil and steel construction all will produce loss, this loss becomes heat energy, cause transformer to generate heat and temperature rising, transformation functional reliability is reduced greatly, therefore how to improve reduction transformer temperature and become particularly important.
At present, forced oil and forced air cooled type is generally for high-power transformer radiator, namely be with oil pump, deep fat is extracted out, force feeding cooler, fan blowing heat radiation cooler is equipped with, the oil flowing out cooler enters transformer bottom again, through iron core and winding, heat is taken away, and this radiator is generally utilize tubular radiator, it is bulky, for light-pipe structure, carrying out in heat transfer process with air, flow boundary layer is thicker, resistance is larger, heat exchange efficiency is lower, oil temperature is caused often to be in the condition of high temperature, the insulation resistance of TRANSFORMER INSULATING MATERIAL is declined, acceleration insulating material is aging, cause partial discharge, cause output capacity widely lower than rated capacity, reduce the efficiency of transformer, shorten the useful life of transformer.Therefore improve cooling structure and the heat exchange property of forced oil-circulation air-cooled radiator, modern transformer heat radiation is become particularly important.
Summary of the invention
In order to improve the heat dispersion of transformer tubular radiator, the present invention proposes a kind of oil cooled transformer with bundled tube heat abstractor, this transformer, with the cooling structure of enhance heat, improves the heat-sinking capability of radiator, in conjunction with Figure of description, technical scheme is as follows:
A kind of oil cooled transformer with bundled tube heat abstractor, described bundled tube heat abstractor is made up of some radiator heat-exchanging tube bundles 3, be arranged on transformer 1 both sides side by side, flowline 2 UNICOM on described heat-exchanging tube bundle 3 upper end and transformer, oil return pipe 5 UNICOM under lower end and heat exchanger, on described heat-exchanging tube bundle 3 outer circumference face, Spiral distribution has air side spiral fin 4, and inner side is provided with oily side spiral fin 6, and described air side spiral fin 4 adopts the mode of welding to be connected on heat-exchanging tube bundle 3.
Air side spiral fin 4 rotation direction be arranged on the adjacent described heat-exchanging tube bundle 3 of transformer homonymy is contrary.
Described oily side spiral fin 6 is inserted in heat-exchanging tube bundle 3.
Spiral fin 6 two ends, described oily side adopt the mode of electric welding to be connected to inside heat-exchanging tube bundle 3.
Described air side spiral fin 4 and oily side spiral fin 6 are evenly processed with through hole.
Compared with prior art, its beneficial effect is in the present invention:
The present invention has not only added spiral fin in heat-exchanging tube bundle air side, also added spiral fin in oily side simultaneously, add the disturbance of the fluid of oily side fully, enhance heat exchange, and air side spiral fin increases radiator heat exchange area accordingly, add disturbance when air flowing, heat-exchanging tube bundle internal and external screw fin carries out punching process simultaneously, destroy the boundary layer that spiral fin is formed, enhance heat exchange, its heat exchange efficiency can reach about 8 times of common tubular radiator.Utilize spiral fin tubular type radiator to increase heat exchange area, relatively can reduce and take up an area space, heat exchange efficiency is higher.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention;
Fig. 2 is front view of the present invention;
Fig. 3 is the cutaway view of heat-exchanging tube bundle in the present invention;
Fig. 4 is the vertical view of heat-exchanging tube bundle in the present invention;
Fig. 5 is the installation site schematic diagram of adjacent heat exchange tube bank in the present invention.
In figure:
1-transformer, flowline on 2-transformer, 3-radiator heat-exchanging tube bundle, the spiral fin of 4-air side, oil return pipe under 5-transformer, 6-oil side spiral fin, 7-air side spiral fin round tube hole, 8-oil side spiral fin round tube hole.
Embodiment
In order to technical scheme of the present invention is described better, in conjunction with Figure of description, the specific embodiment of the present invention is described below:
As shown in Figure 1 and Figure 2, the invention discloses a kind of oil cooled transformer with bundled tube heat abstractor, described bundled tube heat abstractor is made up of some radiator heat-exchanging tube bundles 3, the nominal diameter of heat-exchanging tube bundle is 50mm, described heat-exchanging tube bundle is arranged on the both sides of oil cooled transformer in couples abreast, flowline 2 UNICOM on its upper end and transformer, oil return pipe 5 UNICOM under lower end and transformer.Cold oil flowline 2 on transformer flows into heat-exchanging tube bundle 3, after cooling, oil return pipe under transformer 5 is flowed back to oil tank of transformer, and then carries out circulation cooling cooling to transformer.
As shown in Figure 5, between adjacent two heat-exchanging tube bundles 3, its air side spiral fin 4 rotation direction is contrary, strengthens the mutual disturbance of air between heat-exchanging tube bundle, strengthens its heat radiation.
As shown in Figure 3, in order to increase the disturbance of the fluid of side, and then strengthen heat exchange, on described heat-exchanging tube bundle 3 outer circumference face, Spiral distribution has air side spiral fin 4, and described air side fin height is 18mm, and fin thickness is 1mm, and spacing of fins is 20mm.Inner side is provided with oily side spiral fin 6, and fin height is 5mm, and fin thickness is 1mm, and spacing of fins is 20mm.The internal diameter of air side spiral fin 4 is identical with heat-exchanging tube bundle 3 external diameter, and the external diameter of oily side spiral fin 6 is identical with heat-exchanging tube bundle 3 internal diameter, and spiral fin is formed by roll extrusion.Air side spiral fin 4 is sleeved on heat-exchanging tube bundle excircle, and reduce the contact heat resistance between air side spiral fin 4 and heat-exchanging tube bundle 3, the place of their Contact, can weld with metal powder, strengthens its heat radiation.
As shown in Figure 3, oil side spiral fin 6 is inserted in heat-exchanging tube bundle, conveniently to the cleaning of radiator transformer oil side, the form with heat-exchanging tube bundle means of spot welds is made at the two ends up and down of oily side spiral fin, rotates in heat-exchanging tube bundle 3 to prevent oily side spiral fin 6 and cause heat-exchanging tube bundle wearing and tearing even to gall.
In addition, as shown in Figure 4, in order to destroy the boundary layer inside heat-exchanging tube bundle 3, spiral fin formed, disturbance being carried out, enhanced heat exchange to lateral fluid flowing in it, described air side spiral fin 4 and oily side spiral fin 6 are evenly processed with manhole.The circumference radial direction punching of air side spiral fin 4 divides three layers, and every layer of 40, circumferential spread direction diameter is the circular hole of 2mm, and three layers of circular hole spacing are 5mm.It is the circular hole of 1mm that the circumferencial direction of oil side spiral fin 6 gets 40 diameters.
The heat exchange efficiency of the heat-exchanger rig under this execution mode can reach about 8 times of common tubular radiator.
Claims (5)
1. the oil cooled transformer with bundled tube heat abstractor, described bundled tube heat abstractor is made up of some radiator heat-exchanging tube bundles (3), be arranged on transformer (1) both sides side by side, flowline (2) UNICOM on described heat-exchanging tube bundle (3) upper end and transformer, oil return pipe (5) UNICOM under lower end and heat exchanger, is characterized in that:
On described heat-exchanging tube bundle (3) outer circumference face, Spiral distribution has air side spiral fin (4), inner side is provided with oily side spiral fin (6), and described air side spiral fin (4) adopts the mode of welding to be connected on heat-exchanging tube bundle (3).
2. a kind of oil cooled transformer with bundled tube heat abstractor as claimed in claim 1, is characterized in that: air side spiral fin (4) rotation direction be arranged on the adjacent described heat-exchanging tube bundle (3) of transformer homonymy is contrary.
3. a kind of oil cooled transformer with bundled tube heat abstractor as claimed in claim 1, is characterized in that:
Described oily side spiral fin (6) is inserted in heat-exchanging tube bundle (3).
4. a kind of oil cooled transformer with bundled tube heat abstractor as claimed in claim 1, is characterized in that:
Spiral fin (6) two ends, described oily side adopt the mode of electric welding to be connected to heat-exchanging tube bundle (3) inner side.
5. a kind of oil cooled transformer with bundled tube heat abstractor as described in any one of claim 1-3, is characterized in that:
Described air side spiral fin (4) and oily side spiral fin (6) are evenly processed with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510701580.1A CN105261449A (en) | 2015-10-23 | 2015-10-23 | Oil-cooled transformer with bundle-type radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510701580.1A CN105261449A (en) | 2015-10-23 | 2015-10-23 | Oil-cooled transformer with bundle-type radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105261449A true CN105261449A (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510701580.1A Pending CN105261449A (en) | 2015-10-23 | 2015-10-23 | Oil-cooled transformer with bundle-type radiator |
Country Status (1)
| Country | Link |
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| CN (1) | CN105261449A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356181A (en) * | 2016-08-31 | 2017-01-25 | 江西华强金源电气有限公司 | Power transformer |
| CN111609667A (en) * | 2020-05-11 | 2020-09-01 | 南京玛格耐特智能科技有限公司 | Oil cooling speed regulation type cooling system |
| CN115411399A (en) * | 2022-09-05 | 2022-11-29 | 吉林大学 | Heat exchange device for enhancing heat exchange capacity |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150615Y (en) * | 1993-01-29 | 1993-12-22 | 江阴市电力设备冷却器厂 | Profiled monometallic integrated fin tube |
| CN2240704Y (en) * | 1995-08-28 | 1996-11-20 | 华南理工大学 | Internal and external spiral tuberculated pipe with small spiral angle |
| JP2009121738A (en) * | 2007-11-14 | 2009-06-04 | Sumitomo Light Metal Ind Ltd | Air-cooled heat exchanger |
| CN101630571A (en) * | 2009-07-07 | 2010-01-20 | 中国西电电气股份有限公司 | Tubular radiator for transformer |
| CN201449186U (en) * | 2009-07-14 | 2010-05-05 | 西安石油大学 | Inner/outer spiral fin type cross-flow heat exchanger of heat transferring pipe |
| CN103115516A (en) * | 2011-11-16 | 2013-05-22 | 江苏大自然电器标牌厂 | Integral spiral finned tube |
-
2015
- 2015-10-23 CN CN201510701580.1A patent/CN105261449A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150615Y (en) * | 1993-01-29 | 1993-12-22 | 江阴市电力设备冷却器厂 | Profiled monometallic integrated fin tube |
| CN2240704Y (en) * | 1995-08-28 | 1996-11-20 | 华南理工大学 | Internal and external spiral tuberculated pipe with small spiral angle |
| JP2009121738A (en) * | 2007-11-14 | 2009-06-04 | Sumitomo Light Metal Ind Ltd | Air-cooled heat exchanger |
| CN101630571A (en) * | 2009-07-07 | 2010-01-20 | 中国西电电气股份有限公司 | Tubular radiator for transformer |
| CN201449186U (en) * | 2009-07-14 | 2010-05-05 | 西安石油大学 | Inner/outer spiral fin type cross-flow heat exchanger of heat transferring pipe |
| CN103115516A (en) * | 2011-11-16 | 2013-05-22 | 江苏大自然电器标牌厂 | Integral spiral finned tube |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356181A (en) * | 2016-08-31 | 2017-01-25 | 江西华强金源电气有限公司 | Power transformer |
| CN106356181B (en) * | 2016-08-31 | 2018-09-21 | 江西华强金源电气有限公司 | A kind of power transformer |
| CN111609667A (en) * | 2020-05-11 | 2020-09-01 | 南京玛格耐特智能科技有限公司 | Oil cooling speed regulation type cooling system |
| CN115411399A (en) * | 2022-09-05 | 2022-11-29 | 吉林大学 | Heat exchange device for enhancing heat exchange capacity |
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Application publication date: 20160120 |