WO2014077543A1 - Radiateur pour transformateur - Google Patents

Radiateur pour transformateur Download PDF

Info

Publication number
WO2014077543A1
WO2014077543A1 PCT/KR2013/010021 KR2013010021W WO2014077543A1 WO 2014077543 A1 WO2014077543 A1 WO 2014077543A1 KR 2013010021 W KR2013010021 W KR 2013010021W WO 2014077543 A1 WO2014077543 A1 WO 2014077543A1
Authority
WO
WIPO (PCT)
Prior art keywords
insulating oil
distribution
transformer
protrusion
radiator
Prior art date
Application number
PCT/KR2013/010021
Other languages
English (en)
Korean (ko)
Inventor
팽진기
김민구
Original Assignee
주식회사 효성
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 주식회사 효성 filed Critical 주식회사 효성
Publication of WO2014077543A1 publication Critical patent/WO2014077543A1/fr

Links

Images

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
    • H01F27/02—Casings
    • 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
    • H01F27/02—Casings
    • H01F27/025—Constructional details relating to 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

Definitions

  • the present invention relates to a radiator for a transformer, and more particularly, to a radiator for a transformer to improve the heat dissipation efficiency by adjusting the flow of the insulating oil through a projection formed in the inner passage formed in the heat sink of the radiator.
  • the transformer acts to raise or lower the voltage and becomes an important component of the power system. Such a transformer is very important for the stable supply of power.
  • heat is generated by the magnetic action of the current, which causes a rise in the temperature of the insulating oil inside the transformer's enclosure.
  • the radiator is installed outside the transformer to discharge heat generated inside the transformer and transferred to the insulating oil through the radiator. That is, the insulating oil is sent to the radiator to discharge heat to the outside, and the insulating oil having a low temperature is sent to the inside of the transformer for use.
  • the exterior of the transformer body (1) constitutes an enclosure (3)
  • the inside of the enclosure (3) is coiled around the core to be transformed
  • the enclosure (3) is filled with insulating oil have.
  • the radiator 5 is connected to one outside of the transformer body 1 to dissipate heat generated in the transformer body 1 to the outside. Insulating oil inside the enclosure 3 flows to the radiator 5 to discharge heat to the outside.
  • the radiator 5 has an upper header pipe 7 communicating with the interior of the enclosure 3 through the upper portion of the transformer body 1, and the interior of the enclosure 3 through the lower portion of the transformer body 1. There is a lower header pipe 7 'in communication with it. A plurality of heat sinks 9 are provided between these header pipes 7 and 7 '.
  • the heat sink 9 is configured by combining two panels to form a space in which the insulating oil flows. An upper portion of the heat sink 9 is connected to the upper header pipe 7, and a lower portion of the heat sink 9 is connected to the lower header pipe 7 ′.
  • Insulating oil is supplied from the enclosure 3 through the upper header pipe 7, and insulating oil is supplied from the upper header pipe 7 to the inside of the heat sink 9 so as to be heated to the outside from the heat sink 9. Is released. The insulating oil passing through the heat sink 9 is transferred to the inner box 3 again through the lower header pipe 7 'to perform an insulating action.
  • the radiator 5 should be able to effectively discharge the heat of the insulating oil to the outside. However, since the insulating oil flowing through the inside of the heat sink 9 has a certain flow in the inner space of the heat sink 9, the heat transfer efficiency to the heat sink 9 is relatively low.
  • a structure for dividing a plurality of flow paths formed inside the heat sink 9 so that heat is evenly distributed throughout the heat sink 9 is employed in the registered utility model in the following prior art document. Although the heat is evenly distributed evenly through the heat sink 9, the heat dissipation efficiency does not increase as the flow of insulating oil forms a laminar flow.
  • the length of the heat sink 9 should be long. In this way, if the length of the heat sink 9 is long, there is a problem that the size of the entire heat sink becomes large.
  • An object of the present invention is to solve the conventional problems as described above, the insulating oil flowing inside the heat sink in the heat sink provided in the transformer to maximize the heat exchange area per unit area with the heat sink to the maximum.
  • Another object of the present invention is to increase the amount of heat dissipation by improving the flow rate of insulating oil in the heat sink of the heat sink.
  • Still another object of the present invention is to allow the flow of insulating oil to occur uniformly with respect to the total flow cross-sectional area in the inner flow path inside the heat sink of the radiator.
  • the present invention is to configure the heat sink in the heat sink for the transformer receives heat from the insulating oil transferred from the transformer body to the inside of the heat sink to the outside.
  • First and second panels coupled to each other to form an internal flow path through which the insulating oil flows, and protruding from the first and second panels into the internal flow path, respectively, so that the insulating oil flows through the internal flow path.
  • a distribution cross section which is formed to protrude from the first and second panels into the internal flow path, respectively, and protrudes at a position corresponding to the distribution protrusion so that the insulating oil flows in the flow path between the distribution protrusions. It includes a vortex blocking protrusion to prevent the change.
  • the distribution protrusions are formed in a row at a predetermined interval in a direction perpendicular to the flow direction of the insulating oil, the outer surface is curved, the distribution projections are arranged in a row of the distribution protrusions adjacent to the flow direction of the insulating oil.
  • the distribution protrusion is formed in a hemispherical or hemispherical shape with the top cut off.
  • the vortex preventing projection is formed to be wider in the row of the distribution projections from the line connecting the center of the distribution projections or thereafter starting at the tip and going in the flow downstream direction of the insulating oil.
  • the vortex preventing protrusion has a trapezoidal or triangular shape in plan view.
  • the distribution protrusion and the vortex preventing protrusion are formed at positions corresponding to each other on the first panel and the second panel.
  • the distribution projections are formed so that the projection flow passages extend downstream from the upstream in the flow direction of the insulating oil.
  • the present invention by placing a distribution protrusion to protrude in the inner flow path formed inside the heat sink, while widening the heat transfer area and widening the flow of the insulating oil as a whole to the inner flow, while installing a vortex preventing projection between the distribution projections Since the vortex is prevented from occurring at the rear end of the distribution protrusion so that a rapid flow of insulating oil occurs, the heat transfer efficiency is increased in the radiator as a whole.
  • the insulating oil flowing along the projection flow passage completely blocks the generation of vortices at the rear end of the distribution projection so that the flow of the insulation oil is delayed by the vortex. It can be prevented to have the effect of improving the heat dissipation performance.
  • FIG. 1 is a schematic perspective view showing the configuration of a transformer having a radiator according to the prior art
  • Figure 2 is a schematic cross-sectional view showing the configuration of a preferred embodiment of a radiator according to the present invention.
  • FIG. 3 is a cross-sectional view showing the configuration of the embodiment shown in FIG.
  • Figure 4 is a plan view showing the configuration of the distribution protrusion and the anti-vortex protrusion of the embodiment shown in FIG.
  • Figure 5 is a schematic cross-sectional view showing the configuration of another embodiment of the present invention.
  • FIG. 6 is a cross-sectional view showing the configuration of the embodiment shown in FIG.
  • FIG. 7 is a plan view showing the configuration of the distribution protrusion and the anti-vortex protrusion of the embodiment shown in FIG.
  • the heat sink used in the transformer is provided with a plurality of heat sinks (10).
  • the heat dissipation plate 10 is most simply coupled to the first panel 11 and the second panel 12 so as to face each other with a predetermined distance therebetween to form an internal flow path 13 therein.
  • 2 is a cross-sectional view of the first panel 11 cut out to be visible.
  • the first panel 11 and the second panel 12 are joined to each other by welding the edge 14 and the inner weld 14. Therefore, in the present embodiment, the inner flow passage 13 formed in the heat sink 10 is divided into three.
  • An upper header pipe 16 and a lower header pipe 18 are provided at the top and bottom of the heat sink 10, respectively.
  • the upper header pipe 16 serves to transfer the insulating oil from the transformer body to the plurality of heat sinks 10, and the lower header pipes 18 pass through the inner channel 13 of each heat sink 10. It collects one insulating oil and sends it back to the transformer body.
  • a plurality of heat sinks 10 are arranged in a row between the upper header pipe 16 and the lower header pipe 18.
  • a plurality of distribution protrusions 20 are formed in the inner passage 13.
  • the inner flow passage 13 is divided into the welding portion 14 is formed long in the longitudinal direction of the heat sink 10 in this embodiment, the divided inner flow passage 13 of the distribution protrusion 20 in the transverse direction Heat is formed.
  • the distribution protrusion 20 is such that the insulating oil flowing in the inner passage 13 is distributed to the entire inner passage 13 and flows.
  • the distribution protrusion 20 is made of a hemispherical shape in which the upper portion is cut. However, the distribution protrusion 20 may have various shapes such as hemispherical shape if the outer surface thereof is curved.
  • the distribution protrusions 20 are alternately provided with three rows and four rows when looking at only one portion of the inner flow passage 13 divided by the welding unit 14. That is, the positions of the distribution protrusions 20 in the adjacent rows are different. In other words, the distribution protrusions 20 of adjacent rows are positioned between the distribution protrusions 20 of one row.
  • one row of the distribution projections 20 is provided with a vortex preventing projection 30, respectively.
  • the vortex preventing protrusion 30 serves to prevent the insulating oil guided by the distribution protrusions 20 from causing the vortex at the rear end of the distribution protrusion 20.
  • the tip of the anti-vortex projection 30 is in the line connecting between the center of the distribution protrusion 20 or to be behind the line.
  • the vortex preventing protrusion 30 serves to ensure that the insulating oil flowing along the distribution protrusion 20 has a certain flow cross-sectional area, so that the flow cross-sectional area does not change suddenly.
  • the vortex preventing protrusion 30 having such a function guides the flow of the insulating oil so that no vortex occurs at the rear end of the distribution protrusion 20.
  • the vortex preventing protrusion 30 is gradually widened in the direction of the flow downstream of the insulating oil, by this configuration the flow path formed between the distribution protrusion 20 and the vortex blocking protrusion 30 is sharply
  • the recirculation zone is not generated at the rear end of the distribution protrusion 20, that is, no vortex is generated.
  • the shape of the vortex preventing projection 30 is trapezoidal in plan view in this embodiment, so that the upstream side of the flow direction of the insulating oil is relatively narrow and wider toward the downstream side. This is because a portion located between the distribution protrusions 20 may be relatively narrow, and a portion located in an area outside the distribution protrusion 20 may be relatively wide. Therefore, the shape of the vortex preventing protrusion 30 may be triangular in plan view, for example. That is, the vortex prevention protrusion 30 which has a vertex in the flow direction upstream of the insulating oil, and has a bottom side in the flow direction downstream of the insulating oil can also be used.
  • FIGS. 5 to 7 another embodiment of the present invention is illustrated in FIGS. 5 to 7.
  • components corresponding to the above embodiments will be described with reference numerals of 100 units.
  • the heat dissipation plate 110 of the present embodiment is formed by combining the first panel 111 and the second panel 112 at a predetermined interval with each other, and an internal flow passage 113 is formed therein.
  • the inner flow passage 113 is divided into three regions by the welding portion 114 to allow the insulating oil to flow.
  • An upper header pipe 116 is installed at the upper end of the heat sink 110 to supply insulating oil to the inner flow passage 113 of the heat sink 110, and the lower header pipe 118 is connected to the lower end of the heat sink 110 so that the inner flow path may be formed. Receiving the insulating oil flows 113 is delivered to the transformer body.
  • the distribution passage 120 and the vortex preventing protrusion 130 protrude from the inner flow passage 113. That is, the distribution protrusion 12 and the vortex preventing protrusion 130 protrude to face each other at positions corresponding to each other of the first panel 111 and the second panel 112.
  • the projection passage 122 is formed to cross the distribution protrusion 120 in the flow direction of the insulating oil.
  • the protrusion flow passage 122 is formed along the central portion of the distribution protrusion 120, and serves to prevent the recirculation region from being formed at the rear end of the distribution protrusion 120. That is, since the insulating oil flowing along the protrusion passage 122 flows directly to the rear end of the distribution protrusion 120, a recirculation region does not occur at the rear end of the distribution protrusion 120.
  • the vortex preventing protrusion 130 prevents recirculation from occurring while the portion passing the distribution protrusion 120 is suddenly widened. That is, the insulating oil flowing along the distribution protrusion 120 to have a certain flow cross-sectional area, so that the flow cross-sectional area is not changed suddenly.
  • radiator for transformer according to the present invention having the configuration as described above is used in detail.
  • Heat generated during the operation of the transformer is transferred to the insulating oil in the transformer body.
  • the insulating oil is moved to the upper portion of the transformer body when the density decreases as the temperature increases, and is transferred to the upper header pipe 16.
  • the insulating oil passes through the upper header pipe 16 and is divided into heat sinks 10 installed in a row to be transferred. Insulating oil delivered to each of the heat sinks 10 flows along the inner passage 13. At this time, when the insulating oil flows in the inner flow passage 13, the distribution protrusion 20 is divided and flowed over the entire flow cross-sectional area.
  • the distribution protrusion 20 causes the insulating oil to flow along its outer surface, and guides the flow while repeatedly distributing it from the upstream to the downstream, so that the flow of the insulating oil is turbulent rather than laminar.
  • the vortex preventing protrusion 30 starting at the position passing through the line connecting the center of the distribution protrusion 20 so that the flow path of the insulating oil flowing through the distribution protrusion 20 so as not to widen rapidly.
  • the recirculation area is prevented from occurring at the rear end of the distribution protrusion 20. Therefore, the vortex does not occur at the rear end of the distribution protrusion 20 so that the flow of the insulating oil can be made quickly.
  • the flow of the insulating oil occurs in this way, the flow can be dispersed throughout the flow cross-sectional area by the distribution protrusion 20, so that the entire heat sink 10 can be used for heat exchange.
  • the distribution protrusion 20 is repeatedly dispersed while guiding the flow of the insulating oil, the flow of the insulating oil is not laminar, so that a turbulent flow is made, and thus the heat exchange efficiency can be relatively increased.
  • the vortex preventing protrusion 30 is provided between the distribution protrusions 20, the circulating area is eliminated by preventing a rapid change in the cross sectional area of the path through which the insulating oil flows, so that no vortex occurs. . Therefore, heat exchange occurs rapidly while the flow of the insulating oil occurs more quickly.
  • the projection flow passage 122 is formed by penetrating the distribution protrusion 120 downstream from the flow direction of the insulating oil.
  • the protrusion flow passage 122 allows the insulating oil to flow directly from the front end of the distribution protrusion 120 to the rear end, so that there is no recirculation area at the rear end of the distribution protrusion 120 so that no vortex occurs.
  • the insulating oil passing through the protrusion flow passage 122 passes through the rear end of the distribution protrusion 120 and flows between the rows of the next distribution protrusion 120 so that the insulating oil can flow quickly without stagnation.
  • the vortex preventing protrusion 130 also prevents the occurrence of the recirculation zone by preventing a rapid change in the flow cross-sectional area in which the insulating oil flows at the rear end of the distribution protrusion 120 to prevent the generation of vortices. .
  • the insulating oil passing through the internal flow path 13 of the heat sink 10 enters back into the transformer body through the lower header pipe 18.
  • the insulating oil transferred to the lower header pipe 18 releases heat while passing through the heat dissipation plate 18, and the temperature is lowered.
  • the insulating oil having a lowered temperature receives heat generated inside the transformer body and repeats the above-described process, and continuously discharges heat to the outside through the radiator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformer Cooling (AREA)

Abstract

La présente invention concerne un radiateur pour transformateur. Selon ledit radiateur, l'échange de chaleur avec l'extérieur est réalisé lorsqu'une huile isolante, qui contient la chaleur générée à partir d'un corps principal de transformateur, passe à travers ce dernier. Le radiateur comprend de multiples puits de chaleur (10), et les puits de chaleur (10) forment un passage interne (13) à l'intérieur de ce dernier, avec un premier panneau (11) et un second panneau (12) couplés l'un avec l'autre. Des protubérances de répartition (20) et des protubérances de prévention de tourbillons (30) sont formées de façon à dépasser vers le passage interne (13) depuis le premier panneau (11) et le second panneau (12). Les protubérances de répartition (20), qui présentent une forme hémisphérique avec une extrémité supérieure coupée, sont agencées en rangées dans la direction orthogonale à la direction de circulation de l'huile isolante, et les protubérances de répartition (20) sont formées de façon à être délocalisées les unes par rapport aux autres et par rapport aux rangées adjacentes des protubérances de répartition (20). Les protubérances de prévention de tourbillons (30) sont situées entre les protubérances de répartition (20) dans les rangées des protubérances de répartition (20). La largeur des protubérances de prévention de tourbillons (30) augmente depuis le côté amont vers le côté aval dans la direction de circulation de l'huile isolante, permettant ainsi d'empêcher tout changement soudain dans la circulation transversale de l'huile isolante, et d'empêcher la génération de tourbillons au niveau de l'extrémité arrière des protubérances de répartition (20). Selon la présente invention, le rendement d'échange de chaleur est augmenté dans les puits de chaleur (10), ce qui permet de réduire relativement la taille des puits de chaleur (10).
PCT/KR2013/010021 2012-11-16 2013-11-06 Radiateur pour transformateur WO2014077543A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120130297A KR101384568B1 (ko) 2012-11-16 2012-11-16 변압기용 방열기
KR10-2012-0130297 2012-11-16

Publications (1)

Publication Number Publication Date
WO2014077543A1 true WO2014077543A1 (fr) 2014-05-22

Family

ID=50657473

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/010021 WO2014077543A1 (fr) 2012-11-16 2013-11-06 Radiateur pour transformateur

Country Status (2)

Country Link
KR (1) KR101384568B1 (fr)
WO (1) WO2014077543A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111640560A (zh) * 2020-06-23 2020-09-08 广东电网有限责任公司东莞供电局 一种天然酯绝缘油配电变压器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101636384B1 (ko) 2014-12-22 2016-07-05 주식회사 효성 변압기용 방열기
RU2736225C1 (ru) * 2017-05-10 2020-11-12 Абб Швайц Аг Электрическое устройство с улучшенным отводом тепла

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990005861U (ko) * 1997-07-21 1999-02-18 신영주 적층형 열교환기 플레이트
KR200228898Y1 (ko) * 2001-01-13 2001-07-19 에스피티씨주식회사 방열판
KR200327763Y1 (ko) * 2003-07-01 2003-09-22 현대중공업 주식회사 변압기용 방열기
KR100773027B1 (ko) * 2006-11-07 2007-11-02 권오경 변압기용 방열기

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100769739B1 (ko) * 2006-03-22 2007-10-29 (주)신호엔지니어링 변압기

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990005861U (ko) * 1997-07-21 1999-02-18 신영주 적층형 열교환기 플레이트
KR200228898Y1 (ko) * 2001-01-13 2001-07-19 에스피티씨주식회사 방열판
KR200327763Y1 (ko) * 2003-07-01 2003-09-22 현대중공업 주식회사 변압기용 방열기
KR100773027B1 (ko) * 2006-11-07 2007-11-02 권오경 변압기용 방열기

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111640560A (zh) * 2020-06-23 2020-09-08 广东电网有限责任公司东莞供电局 一种天然酯绝缘油配电变压器
CN111640560B (zh) * 2020-06-23 2021-10-15 广东电网有限责任公司东莞供电局 一种天然酯绝缘油配电变压器

Also Published As

Publication number Publication date
KR101384568B1 (ko) 2014-04-21

Similar Documents

Publication Publication Date Title
WO2014081140A1 (fr) Transformateur avec radiateur refroidi par air
WO2015099471A1 (fr) Dispositif rayonnant la chaleur pour transformateur
US20150041111A1 (en) Heat Exchange Plate, Heat Exchanger, and Communication Base Station Cabinet
CN112840497A (zh) 用于车辆电池模块的蛇形逆流冷却板
CN204792762U (zh) 液冷式冷却装置
WO2014077543A1 (fr) Radiateur pour transformateur
US20220377940A1 (en) Liquid cooled plate and electronic computing device
CN214848770U (zh) 液冷板及散热装置
CN218827074U (zh) 一种微通道散热器
KR20120013143A (ko) 냉각수로 어셈블리 및 냉각수로 유닛
EP4220823A1 (fr) Plateau et bloc-batterie le comportant
WO2014104832A1 (fr) Radiateur pour transformateur
CN114615866A (zh) 液冷板及电子设备
WO2016105085A1 (fr) Radiateur de transformateur
CN115279111A (zh) 液冷板及散热设备
EP3240376B1 (fr) Armoire
CN112902730A (zh) 一种全表面换热板、换热芯体及换热器
CN206075992U (zh) 一种大功率变压器的散热外壳
CN205830234U (zh) 一种中大型高频开关电源用的组合式液冷散热装置
CN220422296U (zh) 液冷排结构
CN217444498U (zh) 一种预防储能电站热失控扩散的液冷装置
CN220798861U (zh) 散热器及通信设备
CN210406039U (zh) 一种新能源电动汽车用的控制器箱体
KR20100071332A (ko) 수로 감소형 라디에이터 탱크구조
CN216795533U (zh) 一种风冷系统及其散热结构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13855892

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13855892

Country of ref document: EP

Kind code of ref document: A1