CN1873855A - Diversion radiating / silencing structure of transformer / reactor - Google Patents
Diversion radiating / silencing structure of transformer / reactor Download PDFInfo
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- CN1873855A CN1873855A CN 200610035890 CN200610035890A CN1873855A CN 1873855 A CN1873855 A CN 1873855A CN 200610035890 CN200610035890 CN 200610035890 CN 200610035890 A CN200610035890 A CN 200610035890A CN 1873855 A CN1873855 A CN 1873855A
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Abstract
Characters are that natural convective diversion structure composed of tubing guide and kuppe increases flow velocity of cooling medium, reduces temperature rise of equipment, and saves energy resources. When air circulation cooling is carried out for dry type transformer / reactor forcedly, axial flow fan is setup in tubing guide to implement even cooling in high performance. When sound absorbent material being adopted, tubing guide and kuppe can shield and attenuate noise from iron core so as to realize deadening effect.
Description
Field that the present invention belongs to:
The invention belongs to power transformer/reactor manufacturing technology field.
Technical background:
Hydronic power transformer/the reactor of existing natural, no matter be oil immersed type or dry type, the heat that all depends on equipment electric energy loss generation carries out free convection as the motive force of fluid media (medium) circulation, yet, its loss heating of transformer/reactor by standard code one constant volume limits within the specific limits, be very limited, and the transformer of same capacity may be designed to different height/width ratios, short and stout have tall and thin that has, and, for the disc coil structure, to have bigger coolant circulation resistance than cylindrical layer winding structure, like this, because the circulation resistance influence, their circulating effect is just variant.Although the temperature rise design will consider these shape factors, but be cost to increase size and manufacturing cost often, the transformer/reactor structure of prior art, owing to there is not the directional stream-guidance design of convection current coolant, so, there is a large amount of eddy current in the motion of cooling fluid, thereby has lost a large amount of mobile kinetic energy.
Effectively utilize the power that transformer/reactor loss heating converts, can improve the convective flow flow velocity of coolant, reduce the operation temperature rise of transformer/reactor, so just be equivalent to reduce the winding operating resistance, promptly can reduce Joule heat, effective energy savings, the useful life that can improve transformer/reactor simultaneously.
In addition,, there are not effective noise reduction or shielding construction because the iron core of dry-type transformer/reactor exposes in air, more high with the dry-type transformer/reactor of capacity than the noise level of oil immersion.This gives in densely populated community and uses dry-type transformer/reactor to bring worry.
Invention task and technical scheme:
The present invention is intended to seek a solution, can realize the water conservancy diversion circulation of fluid, and the eddy current that reduces fluid dynamic energy scatters and disappears, improve the directed flow speed of coolant, so just can reduce the working temperature of winding, the winding resistance when promptly reducing the transformer operation brings energy-saving effect.
Utilize the basic principle of stack effect, the present invention has conceived a kind of simple method of river diversion, kuppe and mozzle are set on transformer/reactor exactly, and relying on transformer/reactor loss heat is motive force, improves the convection circulation speed of coolant.
Meanwhile, when kuppe and mozzle use sound-absorbing material, can shield the noise emission that magnetostriction unshakable in one's determination produces with damping vibration attenuation.
The flow-guiding type transformer/reactor heat radiation/noise-reducing structure that the present invention relates to is described below in conjunction with embodiment.
Flow-guiding radiation/noise-reducing structure that Fig. 1 is made up of kuppe, coil and mozzle
Flow-guiding radiation/noise-reducing structure that Fig. 2 is made up of kuppe and mozzle
Among Fig. 1 and Fig. 2: 1-coil, 2-kuppe, 3-mozzle, 4-axial flow blower, 5-iron core
For expressing and narrating conveniently, only illustrate single-phase water conservancy diversion loop structure among Fig. 1 and Fig. 2, to the flow-guiding structure of three-phase transformer/reactor can be the identical single-phase water conservancy diversion loop structure of three covers independently, also can be to pass through the conjuncted structure of a cover that forms mutually by the single-phase water conservancy diversion loop structure of three covers on how much.
Among Fig. 1, kuppe (2) is shaped as bell jar in the bottom of coil (1), direct and coil (1) the lower end butt joint of kuppe (2) bellmouth, and the runner progradation is played in mozzle (3) and the butt joint of coil (1) upper end, obtains chimney effect.Kuppe (2) diffusing opening need and ground (or shell bottom surface) between maintain a certain distance, make fluid media (medium) freely following current lead to and pour into.Cryogen after confluxing is by the electromagnetic assembly of the runner cooling transformer/reactor between coil (1) inner flow passage, coil (1) and (5) unshakable in one's determination.
Among Fig. 2, kuppe (2) is shaped as bell jar in the bottom of coil (1), and direct and kuppe (2) butt joint of mozzle (3) obtains chimney effect.The coil of transformer/reactor (1) and (5) envelope unshakable in one's determination are in mozzle (3) inside.Equally, kuppe (2) diffusing opening need and ground (or shell bottom surface) between maintain a certain distance, make fluid media (medium) freely following current lead to.Cryogen after confluxing is by the electromagnetic assembly of the runner cooling transformer/reactor between runner, coil (1) and the iron core (5) between coil (1) inner flow passage, coil (1) and the mozzle (3).
The height of mozzle (3) is decided on different product, and within a certain height, the high more then stack effect of mozzle is obvious more.
Two kinds of flow-guiding radiation structures of Fig. 1 and Fig. 2 signal, additional material is few, but because stack effect has improved circulation of fluid efficient greatly, especially to insulation thermal endurance class dry-type transformer/reactor higher, the cross-ventilation cooling, effect is very obvious.For oil-immersed type transformer/reactor, because the viscosity and the flow velocity of conduction oil are low, it is relatively limited that convection effects promotes amplitude.
Flow-guiding radiation structure among Fig. 1 and Fig. 2 should have in the two one of kuppe (2) or mozzle (3) at least, can play the flow-guiding radiation effect, improves the apparatus cools effect.
Dry-type transformer/the reactor of the natural convection air cooling of prior art, in order to guarantee safe operation under transformer/reactor overload situation in short-term, major part is designed to have both the dual-cooled mode of forced air cooling function, below coil, increased cooling blower for this reason, owing to there is not guiding device, for obtaining the even cooling degree in air-supply zone, 6 the expanded letter curtain formula blower fans (also claiming to be used to flow fan) that use more, gross power is according to the place capacity 200W-600W level that do not coexist, but the air-supply effect of this blower fan is obviously not as axial flow blower, noise is also relatively large, and cost is higher relatively, has consumed more electric energy.So, in the water conservancy diversion cooling technology scheme that this patent relates to,, can improve air cycle efficiency greatly at the inner installing of mozzle (3) axial flow blower (4).Axial flow blower (4) generally is installed in the top of iron core (5), and the air draft direction upwards.One of each flow-guiding channel, so, 3 typhoon machines then used for three-phase transformer/reactor.The separate unit power of fan is generally about 50W.The direction of arrow of illustrating among the figure is the wind flow direction.This scheme is applicable to the transformer/reactor that has both natural air cooled (AN) and two kinds of types of cooling of forced air cooling (AF).Axial flow blower have noise little, with the fan delivery of constant power much larger than advantages such as curtain formula blower fan, cheapnesss.This flow-guiding structure forced air cooling scheme is higher than the curtain formula blower fan scheme of prior art far away to the uniformity coefficient of electromagnetic assembly cooling.
From the water conservancy diversion cooling structure of Fig. 1 and Fig. 2 signal as can be seen, (5) unshakable in one's determination are enclosed in the flow-guiding channel basically, and the root that causes the transformer/reactor noise is because the vibration sound wave that magnetostriction unshakable in one's determination causes, so, if shield and absorb the external conduction of sound wave unshakable in one's determination, just can effectively reduce the external acoustical power emission of transformer/reactor, thereby reduce the device external noise, this is quite meaningful to dry-type transformer/reactor.From the sound wave that the bottom enters the mouth and the top outlet leaks of flow-guiding channel will be very limited.
The kuppe (2) and the mozzle (3) of Fig. 1 and Fig. 2 signal are to be made by the sound-absorbing material that possesses insulation characterisitic, and this comprises foamed material, fiber material or the like.Perhaps, kuppe (2) and mozzle (3) they are to be made by the sheet material that possesses insulation characterisitic, for example glass fabric of epoxy resin plate, polyester composite insulating foil etc., and inwall attaches sound-absorbing material, and this comprises foamed material, fiber material or the like.
Coil (1) has the shielding effect to (5) emitting sound wave unshakable in one's determination, reflexes to will be absorbed by sound-absorbing material after mozzle (3) and kuppe (2) are gone up.
Implement the effect that technical scheme of the present invention obtains:
Transformer/reactor sets up kuppe and mozzle is realized the water conservancy diversion cooling, can also install axial flow blower additional to the transformer/reactor that has both forced air cooling in mozzle, can effectively improve cooling effect, reduces the equipment temperature rise, thus energy savings.Kuppe and mozzle adopt the sound-absorbing material preparation of insulation, can effectively shield external noise emission unshakable in one's determination, reduce the noise level of dry-type transformer/reactor.
Claims (6)
1, a kind of flow-guiding radiation/noise-reducing structure of power transformer/reactor, it is characterized in that: the kuppe (2) that the effect of confluxing has been set in the bottom of the electromagnetic assembly of transformer/reactor, the mozzle (3) of chimney effect perhaps has been set in the periphery of the electromagnetic assembly of transformer/reactor, or the combination of the two.
2, flow-guiding radiation/noise-reducing structure according to claim 1, it is characterized in that: the kuppe (2) that is provided with the convergence flow body medium in the bottom of coil (1), the mozzle (3) that improves rate of flow of fluid is perhaps arranged in the upper end of coil (1), or the combination of the two.
3, flow-guiding radiation/noise-reducing structure according to claim 1 is characterized in that: kuppe (2) and mozzle (3) directly engage, and the coil of transformer/reactor (1) and (5) envelope unshakable in one's determination are in mozzle (3) inside.
4, flow-guiding radiation/noise-reducing structure according to claim 1, it is characterized in that: for the air-cooled dry-type transformer/reactor of air, add when having both the forced air cooling function axial flow blower (4) is arranged, axial flow blower (4) is installed in mozzle (3) inside, (5) unshakable in one's determination top, and the air draft direction from bottom to top.
5, flow-guiding radiation/noise-reducing structure according to claim 1 is characterized in that: kuppe (2) and mozzle (3) are made by sound-absorbing material.
6, flow-guiding radiation/noise-reducing structure according to claim 1 or 5, it is characterized in that: kuppe (2) and mozzle (3) are made by insulation board (paper tinsel), and inwall attaches sound-absorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610035890 CN1873855A (en) | 2006-06-12 | 2006-06-12 | Diversion radiating / silencing structure of transformer / reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610035890 CN1873855A (en) | 2006-06-12 | 2006-06-12 | Diversion radiating / silencing structure of transformer / reactor |
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| Publication Number | Publication Date |
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| CN1873855A true CN1873855A (en) | 2006-12-06 |
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| CN 200610035890 Pending CN1873855A (en) | 2006-06-12 | 2006-06-12 | Diversion radiating / silencing structure of transformer / reactor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231314A (en) * | 2011-04-14 | 2011-11-02 | 江苏省电力设计院 | Inductive ventilation cooling system of indoor split type transformer |
| US8274350B2 (en) | 2007-09-28 | 2012-09-25 | Siemens Aktiengesellschaft | Electric winding body and transformer having forced cooling |
| CN102943779A (en) * | 2012-11-15 | 2013-02-27 | 江苏中联风能机械有限公司 | Silencing ventilating duct of large air-cooling fan |
| CN103474889A (en) * | 2013-09-13 | 2013-12-25 | 东南大学 | Ventilating system device of indoor transformer substation |
| CN103746302A (en) * | 2014-02-27 | 2014-04-23 | 江苏省电力设计院 | All-indoor transformer-substation inductive ventilation system |
| CN105378865A (en) * | 2013-07-18 | 2016-03-02 | 三菱电机株式会社 | Air-cooled reactor |
| CN109192460A (en) * | 2018-09-25 | 2019-01-11 | 株洲中车奇宏散热技术有限公司 | A kind of method and reactor to the power supply of reactor cooling blower |
| CN110231533A (en) * | 2019-07-15 | 2019-09-13 | 中铁检验认证中心有限公司 | Temperature-rise test device and method, storage medium, computer equipment |
| CN110718366A (en) * | 2019-09-27 | 2020-01-21 | 国网河南省电力公司商丘供电公司 | Transformer for power transmission and distribution |
| US20220285068A1 (en) * | 2019-07-26 | 2022-09-08 | Hitachi Energy Switzerland Ag | Transformer cooling system |
-
2006
- 2006-06-12 CN CN 200610035890 patent/CN1873855A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8274350B2 (en) | 2007-09-28 | 2012-09-25 | Siemens Aktiengesellschaft | Electric winding body and transformer having forced cooling |
| CN101809686B (en) * | 2007-09-28 | 2012-11-14 | 西门子公司 | Electric winding body and transformer having forced cooling |
| CN102231314A (en) * | 2011-04-14 | 2011-11-02 | 江苏省电力设计院 | Inductive ventilation cooling system of indoor split type transformer |
| CN102231314B (en) * | 2011-04-14 | 2012-08-08 | 江苏省电力设计院 | Inductive ventilation cooling system of indoor split type transformer |
| CN102943779A (en) * | 2012-11-15 | 2013-02-27 | 江苏中联风能机械有限公司 | Silencing ventilating duct of large air-cooling fan |
| CN105378865A (en) * | 2013-07-18 | 2016-03-02 | 三菱电机株式会社 | Air-cooled reactor |
| CN103474889A (en) * | 2013-09-13 | 2013-12-25 | 东南大学 | Ventilating system device of indoor transformer substation |
| CN103746302A (en) * | 2014-02-27 | 2014-04-23 | 江苏省电力设计院 | All-indoor transformer-substation inductive ventilation system |
| CN109192460A (en) * | 2018-09-25 | 2019-01-11 | 株洲中车奇宏散热技术有限公司 | A kind of method and reactor to the power supply of reactor cooling blower |
| CN110231533A (en) * | 2019-07-15 | 2019-09-13 | 中铁检验认证中心有限公司 | Temperature-rise test device and method, storage medium, computer equipment |
| US20220285068A1 (en) * | 2019-07-26 | 2022-09-08 | Hitachi Energy Switzerland Ag | Transformer cooling system |
| CN110718366A (en) * | 2019-09-27 | 2020-01-21 | 国网河南省电力公司商丘供电公司 | Transformer for power transmission and distribution |
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