CN1057859C - High-flux radiator of power transformer - Google Patents
High-flux radiator of power transformer Download PDFInfo
- Publication number
- CN1057859C CN1057859C CN97107080A CN97107080A CN1057859C CN 1057859 C CN1057859 C CN 1057859C CN 97107080 A CN97107080 A CN 97107080A CN 97107080 A CN97107080 A CN 97107080A CN 1057859 C CN1057859 C CN 1057859C
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- transformer
- oil
- heat
- collection box
- heat exchanger
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Abstract
The present invention discloses a high-flux radiator for an electric power transformer, which is composed of a transformer, a heat exchanger with tube fins, and an oil conservator, wherein the heat exchanger with tube fins is arranged above the transformer; radiation fins are vertically arranged on a horizontal tube. The unique design of an oil path of the present invention greatly improves the circulating power of transformer oil at the time of natural convection, enhances total coefficient of heat radiation and reduces the consumption of heat radiation material. The present invention has the advantages of simple manufacturing process, low production cost, and high safety and reliability; the transformer has strong overloading ability and can satisfy the requirements of A-class insulation of a power transformer.
Description
The present invention relates to a kind of heat abstractor of power transformer, specifically the power transformer radiator.
Power transformer (hereinafter to be referred as transformer) is the electric equipment that is used for changing the alternating voltage size.Transformer its internal loss that is in operation comprises iron loss and copper loss, and iron loss and copper loss are all emitted with form of heat, so the heat radiation of transformer, cooling are the prerequisites that guarantees the transformer operate as normal.The transformer heat radiation oil immersed types that adopt promptly by the closed cycle of transformer oil (being insulating oil), absorb the heat of iron core and coil and pass to coolant more.For the transformer of capacity less than 6300KVA, mainly take oil-immersed self-cooled to dispel the heat, promptly on the transformer tank shell, weld the radiating tube of 1-3 layer, radiating tube is identical with the fuel tank height.At present, the way of raising radiating efficiency commonly used has: in transformer, all reserve oil duct in iron core and the coil, guarantee the unimpeded of oil circuit and to effective absorption of heat.Outside transformer, according to different capabilities, the different type of cooling and take different measure; Middle low capacity, increase external radiating tube or fin energetically; Jumbo, with oil pump transformer oil is implemented forced circulation (strong oil), with blower fan and water pump coolant (air or water) is carried out forced convertion.Oil tank of transformer and cooling system, manufacturing cost is more and more higher, and technology becomes increasingly complex.Chinese patent (88202418.3) discloses a kind of transformer radiator, its technical scheme is a weldering system fin on radiating tube, this mode is manufacturing cost high technology complexity not only, and radiating tube is still consistent with the fuel tank height, can't increase the circulation power of transformer oil, simultaneously because fin is difficult to tight the contact with the heat radiation oil pipe.
The objective of the invention is to: the circulation power that increases insulating oil in the oil-immersed self cooled transformer; Reduce the quantity of oil-immersed self cooled transformer radiating tube, the manufacturing process route of simplified cooling system reduces production costs; The range of application of oil mode is advanced to big capacity direction, and an alternative part contains oil-immersed forced-air cool, the forced oil-circulation cooled transformer of moving component (Pumps ﹠ Fans).
The object of the present invention is achieved like this.
A kind of power transformer radiator, form by pipe wing heat exchanger and conservator, it is characterized in that managing the top that the wing heat exchanger places transformer, be provided with horizontal tube in the pipe wing heat exchanger, the two ends of horizontal tube communicate with last oil collection box and following oil collection box respectively, last oil collection box communicates with grease chamber, transformer top by last oil pipe, and following oil collection box upper end communicates with conservator, and following oil collection box lower end communicates with grease chamber, transformer bottom by following oil pipe; Vertical fixing has fin on the horizontal tube.
Transformer is in service, and the inside and outside heat transfer of radiator all obtains efficient hardening.The inboard is because the raising of circulation power, circulation flux brings the raising of convective heat-transfer coefficient; The outside owing to install vertical radiating fin additional, has enlarged heat transfer area, has improved the heat release to air.The heat that insulating oil is drawn from iron core and coil is put to the heat of air and the conduction of fuel tank wall, radiation with radiator and to be reached balance for the heat of air, and the work of heat release system enters stable state.
The present invention has following advantage: 1. creationary outer oil circuit design, the radiator height places the transformer top, has improved the circulation power of transformer when free convection widely.2. improve overall heat-transfer coefficient, reduce the use amount of heat sink material, the manufacturing process route of simplified cooling system reduces production costs, and makes the oil of transformer oil box top warm≤85 ℃.3. capability of overload is strong, has the transformer of high-flux radiator, in case because of overload occurs when overheated, its fuel tank top oil temperature rise also advances to radiator along riser.Circulation power increases immediately, the corresponding increasing of circulation flux of insulating oil, and the overall heat-transfer coefficient and the heat transfer temperature difference of radiator increase, and guarantee that heat sheds smoothly, and system enters new stable state, thereby makes this transformer have stronger capability of overload.4. two cover fin-tube type heat exchangers equipment arranged side by side before and after, the upper and lower oil pipe symmetry arrangement of two covers, the circulation route of transformer oil is shortened, and temperature field symmetrical distribution and gradient are less in the transformer, are convenient to the arrangement of transformer connection terminal simultaneously.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is an end view of the present invention.
Embodiment:
Referring to Fig. 1～Fig. 3, a kind of power transformer radiator, wing heat exchanger 9 and conservator 6 are formed by all means by two, two by all means wing heat exchanger 9 be connected in parallel on the top of transformer 1, be provided with horizontal tube 3 in the pipe wing heat exchanger 9, the two ends of horizontal tube 3 are oil collection box 4 and last oil collection box 7 down, following oil collection box 4 communicates with transformer 1 bottom by following oil pipe 2, last oil collection box 7 communicates with transformer 1 top by last oil pipe 8, and vertical fixing has fin 5 on the horizontal tube 3, and conservator 6 communicates with the oil circuit of following oil collection box 4.During transformer work, the insulating oil that temperature raises in the transformer 1 will rise to oil collection box 7 along last oil pipe 8, when insulating oil flows in horizontal tube 3, heat distributes through fin 5, the insulating oil that temperature reduces collects in down oil collection box 4 and enters the bottom of transformer 1 by following oil pipe 2, continue to absorb the heat of transformer core and coil, insulating oil carries out closed cycle automatically.
Claims (2)
1, a kind of power transformer radiator, form by pipe wing heat exchanger (9) and conservator (6), it is characterized in that managing the top that wing heat exchanger (9) places transformer (1), be provided with horizontal tube (3) in the pipe wing heat exchanger (9), the two ends of horizontal tube (3) communicate with last oil collection box (7) and following oil collection box (4) respectively, last oil collection box (7) communicates by the same transformer of last oil pipe (8) (1) grease chamber, top, following oil collection box (4) the same conservator in upper end (6) communicates, and following oil collection box (4) lower end communicates by grease chamber, the following same transformer of oil pipe (2) (1) bottom.
2, power transformer radiator according to claim 1 is characterized in that the last vertical fixing of horizontal tube (3) has fin (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97107080A CN1057859C (en) | 1997-08-13 | 1997-08-13 | High-flux radiator of power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97107080A CN1057859C (en) | 1997-08-13 | 1997-08-13 | High-flux radiator of power transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1188972A CN1188972A (en) | 1998-07-29 |
| CN1057859C true CN1057859C (en) | 2000-10-25 |
Family
ID=5169269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97107080A Expired - Fee Related CN1057859C (en) | 1997-08-13 | 1997-08-13 | High-flux radiator of power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1057859C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101989487B (en) * | 2010-10-20 | 2012-10-31 | 江苏华鹏变压器有限公司 | Novel transformer heat radiator fixing structure |
| CN105405621A (en) * | 2015-12-25 | 2016-03-16 | 中国能源建设集团广东省电力设计研究院有限公司 | Split-type arrangement method and structure of gas transformer |
| CN107146687B (en) * | 2017-07-14 | 2024-03-26 | 河南森源电气股份有限公司 | Transformer |
| CN111755212A (en) * | 2020-08-05 | 2020-10-09 | 滁州先奇工业科技有限公司 | Transformer with heat conduction and radiation structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030367U (en) * | 1988-04-22 | 1989-01-04 | 常州片式散热器厂 | Fin type radiator for transformer |
| CN2087418U (en) * | 1991-02-22 | 1991-10-23 | 黄焕培 | Thin piece type radiator |
-
1997
- 1997-08-13 CN CN97107080A patent/CN1057859C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030367U (en) * | 1988-04-22 | 1989-01-04 | 常州片式散热器厂 | Fin type radiator for transformer |
| CN2087418U (en) * | 1991-02-22 | 1991-10-23 | 黄焕培 | Thin piece type radiator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1188972A (en) | 1998-07-29 |
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