CN115472395A - Radiator of distribution transformer - Google Patents
Radiator of distribution transformer Download PDFInfo
- Publication number
- CN115472395A CN115472395A CN202211129090.5A CN202211129090A CN115472395A CN 115472395 A CN115472395 A CN 115472395A CN 202211129090 A CN202211129090 A CN 202211129090A CN 115472395 A CN115472395 A CN 115472395A
- Authority
- CN
- China
- Prior art keywords
- oil
- heat dissipation
- pipe
- transformer
- distribution transformer
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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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
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention discloses a distribution transformer radiator, comprising: oil tank, heat dissipation type pipe and fin, the oil tank include: the oil outlet and the oil inlet are respectively connected with two ends of the heat dissipation type pipe, and the radiating fins are connected to the heat dissipation type pipe. The invention utilizes the corrugated sheet to manufacture the radiating fin, the flexibility of the thin steel plate of the corrugated sheet can adjust the thermal expansion of the transformer oil, and an air layer is not needed; under the condition that the length and the width of the outer dimension are limited, the temperature rise of the top layer oil of the transformer is reduced by utilizing the ratio of the heat dissipation center height of the upper rectangular oil collecting pipe and the heat dissipation center height of the lower rectangular oil collecting pipe to the heat generation center height of the oil tank.
Description
Technical Field
The invention discloses a distribution transformer radiator, and relates to the field of transformer radiators.
Background
The heat generated by the transformer during operation is generated in two aspects, namely, the iron loss is the heat generated by the eddy current loss in the transformer iron core; the second is the heat generated by the load current flowing through the transformer winding, which is proportional to the square of the current. The heat generated by the transformer must be dissipated in time, otherwise the transformer is damaged, and the heat dissipation of the transformer is limited under the condition that the length and the width of the external dimension are limited.
Disclosure of Invention
Aiming at the defects in the background technology, the invention provides the distribution transformer radiator which has good radiating effect.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a distribution transformer heat sink, comprising: oil tank, heat dissipation type pipe and fin, the oil tank include: the oil tank, the heat dissipation type pipe and the heat dissipation sheet are filled with heat dissipation oil, and the transformer is arranged in the oil tank.
Furthermore, the oil tank base is arranged in a rectangular shape, the side wall is connected to the periphery of the base to form an opening box body, the upper side of the side wall is connected with the cover body, the upper end of the side wall is provided with an oil outlet, and the lower end of the side wall is provided with an oil inlet.
Further, the heat dissipation type pipe is designed as a C-shaped pipe, and the heat dissipation type pipe includes: go up rectangle collection oil pipe, lower rectangle collection oil pipe, connection steel tank, the one end of going up the rectangle collection oil pipe connect in the oil-out, the one end of lower rectangle collection oil pipe is connected in the oil inlet, the free end of going up rectangle collection oil pipe, lower rectangle collection oil pipe connect the both ends of connecting the steel tank respectively, go up and be linked together between rectangle collection oil pipe, lower rectangle collection oil pipe, the connection steel tank and the fin, the even distribution of heat dissipation oil between the fin is convenient for in the design of C type pipe.
Furthermore, a plurality of radiating fins are connected between the upper rectangular oil collecting pipe and the lower rectangular oil collecting pipe, and the radiating fins are hollow corrugated fins.
Furthermore, the radiating fins are arranged in parallel and arranged between the upper rectangular oil collecting pipe and the lower rectangular oil collecting pipe.
Furthermore, two side walls of the oil tank are symmetrically provided with connecting heat dissipation type pipes.
Further, the height of the heat dissipation center of the heat dissipation type pipe is as follows: the vertical height from the central position of the radiating fin to the surface of the base; the heating center height with the oil tank is as follows: the vertical height from the center of the transformer to the surface of the base, the ratio of the heating center height to the heat dissipation center height of the oil tank is [0.3,1.5], so that the heat dissipation performance can be improved, and the manufacturing cost of the structure can be reduced.
Has the advantages that: the invention utilizes the corrugated sheet to manufacture the radiating fin, can adapt to the thermal expansion of the transformer radiating oil through the flexibility of the thin steel plate of the corrugated sheet, and does not need to leave an air layer.
Under the condition that the length and the width of the external dimension are limited, the temperature rise degree of the top layer oil at the upper part of the transformer is reduced by utilizing the ratio adjustment of the heat dissipation center height of the upper rectangular oil collecting pipe and the heat dissipation center height of the oil tank, and the heat dissipation requirement of a user is met.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the heat sink of the present invention;
FIG. 3 is a schematic view of a heat dissipating tube structure according to the present invention;
FIG. 4 is a schematic cross-sectional view of the present invention;
fig. 5 is a schematic view of the heat dissipation effect of the present invention.
Detailed Description
The following describes the implementation of the technical solution in further detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
One embodiment is shown in FIG. 1~4: the present embodiment provides a distribution transformer heat sink, comprising: oil tank 1, heat dissipation type pipe 2 and fin 3, oil tank 1 include: base 11 and the lateral wall 12 rather than being connected, lateral wall 12 set up oil-out 13 and oil inlet 14, oil-out 13 and oil inlet 14 connect the both ends of heat dissipation type pipe 2 respectively, fin 3 connect on heat dissipation type pipe 2, inside the full heat dissipation oil that fills of oil tank 1, inside oil tank 1 is arranged in to the transformer, heat dissipation oil under transformer work, the heat dissipation oil that the temperature rises automatically gets into the oil inlet, participates in the heat dissipation circulation.
The oil tank 1 is characterized in that a base 11 is arranged in a rectangular shape, a side wall 12 is connected to the periphery of the base 11 to form an open tank body, an oil outlet 13 is formed in the upper end of the side wall 12, and an oil inlet 14 is formed in the lower end of the side wall 12.
The heat dissipation type pipe 2 is a C-shaped pipe design, and the heat dissipation type pipe 2 comprises: the oil-gas separator comprises an upper rectangular oil collecting pipe 21, a lower rectangular oil collecting pipe 22 and a connecting steel groove 23, wherein one end of the upper rectangular oil collecting pipe 21 is connected to the oil outlet 13, one end of the lower rectangular oil collecting pipe 22 is connected to the oil inlet 14, and the free ends of the upper rectangular oil collecting pipe 21 and the lower rectangular oil collecting pipe 22 are respectively connected with the two ends of the connecting steel groove 23.
A plurality of radiating fins 3 are connected between the upper rectangular oil collecting pipe 21 and the lower rectangular oil collecting pipe 22, and the radiating fins 3 are hollow corrugated fins.
The radiating fins 3 are arranged in parallel between the upper rectangular oil collecting pipe 21 and the lower rectangular oil collecting pipe 22.
An oil inlet 14 and an oil outlet 13 are symmetrically arranged on two side walls 12 of the oil tank 1, and three oil inlets and three oil outlets 13 are arranged on one side wall 12.
The heat dissipation center height of the heat dissipation type pipe 2 is as follows: the vertical height from the central position of the radiating fin 3 to the surface of the base 11;
the heating center height with the oil tank 1 is as follows: the vertical height from the center of the transformer to the surface of the base 11;
the ratio of the heating center height of the oil tank to the heat dissipation center height is 0.3,1.5.
As shown in FIG. 5, when the heating center height Hf is 400mm, the heat dissipation center height Hs is 400mm, hf/Hs =1, the top oil temperature T Δ of the radiator is about 12 ℃ at the average temperature Ty =40 ℃,
the right side abscissa of the intersection point of the T Δ, the Hf/Hs and Ty and the nearest curve and Ty is determined;
when the heating center height Hf is 400mm, the heat dissipation center height Hs is 800mm, hf/Hs =0.5, and when the average temperature Ty =40 ℃ of the heat dissipation oil, the top oil temperature rise T Δ of the radiator is approximately 2.5 ℃.
It can be known that the heat dissipation height is increased by 400mm, the temperature rise of the top layer oil is reduced by about 9.5 ℃, and the smaller the ratio of the height of the heating center to the height of the heat dissipation center, the lower the temperature rise of the top layer heat dissipation oil in the embodiment is.
The invention has less height limitation under the condition of limitation on the length and the width of the external dimension, and reduces the temperature rise degree of the top layer oil of the transformer by utilizing the adjustment of the ratio of the heat dissipation center height of the upper rectangular oil collecting pipe and the heat dissipation center height of the lower rectangular oil collecting pipe to the heating center height of the oil tank.
The invention utilizes the corrugated sheet to manufacture the radiating fins, the flexibility of the thin steel plate of the corrugated sheet can adjust the thermal expansion of the transformer radiating oil, an air layer is not required to be designed, and the problem that the expansion of the radiating oil is adjusted by designing the air layer by adopting a hard steel plate of the radiator is solved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be considered as the protection scope of the present invention.
Claims (7)
1. A distribution transformer heat sink, comprising: oil tank, heat dissipation type pipe and fin, the oil tank include: the oil-cooling type transformer oil tank comprises a base and a side wall connected with the base, wherein an oil outlet and an oil inlet are formed in the side wall, a cover body is connected to the upper side of the side wall, the oil outlet and the oil inlet are respectively connected with two ends of a heat dissipation type pipe, a cooling fin is connected to the heat dissipation type pipe, heat dissipation oil is filled in the oil tank, the heat dissipation type pipe and the cooling fin, and a transformer is placed in the oil tank.
2. The distribution transformer radiator of claim 1, wherein the tank base is rectangular, the side walls are connected to the base and enclose an open box, an oil outlet is provided at the upper end of the side walls, and an oil inlet is provided at the lower end of the side walls.
3. The distribution transformer heat sink of claim 1, wherein the heat dissipation type tube is of a C-tube design, the heat dissipation type tube comprising: go up rectangle collection oil pipe, lower rectangle collection oil pipe, connection steel bath, the one end of going up the rectangle collection oil pipe connect in the oil-out, the one end of lower rectangle collection oil pipe is connected in the oil inlet, the free end of going up rectangle collection oil pipe, lower rectangle collection oil pipe connect the both ends of connecting the steel bath respectively, go up and be linked together between rectangle collection oil pipe, lower rectangle collection oil pipe, the connecting steel bath and the fin.
4. The distribution transformer radiator of claim 3, wherein a plurality of fins are connected between the upper rectangular oil collecting pipe and the lower rectangular oil collecting pipe, and the fins are hollow corrugated fins.
5. The distribution transformer heat sink of claim 4, wherein the fins are arranged in parallel between the upper and lower rectangular oil collection tubes.
6. The distribution transformer radiator of claim 1, wherein the two sidewalls of the oil tank are symmetrically provided with connecting radiating tubes.
7. The distribution transformer radiator of claim 1, wherein said heat-dissipating type pipe has a heat-dissipating center height of: the vertical height from the central position of the radiating fin to the surface of the base; the height of the heating center of the oil tank is as follows: the vertical height from the center of the transformer to the surface of the base, and the ratio of the heating center height of the oil tank to the heat dissipation center height is 0.3,1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211129090.5A CN115472395A (en) | 2022-09-16 | 2022-09-16 | Radiator of distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211129090.5A CN115472395A (en) | 2022-09-16 | 2022-09-16 | Radiator of distribution transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115472395A true CN115472395A (en) | 2022-12-13 |
Family
ID=84371271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211129090.5A Pending CN115472395A (en) | 2022-09-16 | 2022-09-16 | Radiator of distribution transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115472395A (en) |
-
2022
- 2022-09-16 CN CN202211129090.5A patent/CN115472395A/en active Pending
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