CN210668017U

CN210668017U - Oil-cooled heat dissipation oil tank of transformer

Info

Publication number: CN210668017U
Application number: CN201921881184.1U
Authority: CN
Inventors: 谢建灿; 秦樟琦; 范利东; 余祺; 杨叶丰; 许志华
Original assignee: Quzhou Hangyong Transformer Co ltd
Current assignee: Quzhou Hangyong Transformer Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-06-02
Anticipated expiration: 2029-11-04

Abstract

The utility model provides a cold oil tank that dispels heat of transformer oil belongs to transformer heat dissipation technical field. The heat dissipation outer frame solves the problem that the heat dissipation outer frame of the existing transformer oil tank is poor in heat dissipation effect because a plurality of oil delivery pipes are generally directly communicated with the transformer oil tank and oil circulation heat dissipation is carried out through the oil delivery pipes. The utility model discloses an oil tank frame main part and set up in the oil tank base of oil tank frame main part bottom, oil tank frame main part side encloses to have a plurality of vertical defeated oil pipes that set up, still be equipped with in the oil tank frame main part with the inlet port and the oil outlet of defeated oil pipe intercommunication, the inlet port sets up in oil tank frame main part upper end, the oil outlet sets up in oil tank frame main part lower extreme, defeated oil pipe periphery wall still is provided with a plurality of radiating fin. The utility model has the advantages of high heat dissipation efficiency, light weight, good corrosion prevention effect and easy modular production.

Description

Oil-cooled heat dissipation oil tank of transformer

Technical Field

The utility model relates to a transformer heat dissipation technical field specifically is a transformer oil cooling oil tank that dispels heat.

Background

The high-frequency transformer generates copper loss and iron loss during operation, and the two losses are finally converted into heat energy, so that an iron core and a winding of the high-frequency transformer generate heat, and the temperature of the high-frequency transformer is increased; in addition, the winding is heated by current, and when the heat of the high-frequency transformer is dissipated to the environment to reach thermal balance, the temperature of each part of the high-frequency transformer is a stable value. If the temperature of each part of the high-frequency transformer exceeds the allowable range for a long time, especially if the oil temperature of the high-frequency transformer is higher than the normal temperature by more than 10 ℃ or the temperature is continuously increased, the insulation of the high-frequency transformer is easily damaged, and the high-frequency transformer is easily broken down by high voltage to cause faults or accidents. Therefore, the allowable temperature of the insulation is not allowed to be exceeded when the transformer is normally operated. For a small-capacity transformer, the ratio of the external surface area to the volume of the transformer is relatively large, and heat can be dissipated by radiation and natural convection in a self-cooling mode. The self-cooling method is suitable for indoor small-sized transformers, and dry type transformers without oil immersion are generally adopted for preventing fire.

Since the loss of a transformer is proportional to its volume, as the capacity of the transformer increases, its volume and loss will increase to the third power of the core size, while the outer surface area only increases to the second power of the size. Therefore, the large-capacity transformer core and the winding should be immersed in oil and various cooling measures should be taken. The heat dissipation outer frame of the existing transformer oil tank is generally formed by directly communicating a plurality of oil conveying pipes with the transformer oil tank, and oil circulation heat dissipation is carried out through the oil conveying pipes, however, in the heat dissipation process of the structure, the contact area of the oil and the oil conveying pipes is limited, heat cannot be effectively dissipated, and therefore heat dissipation efficiency is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a transformer oil cooling heat dissipation oil tank that radiating effect is good to the above-mentioned problem that exists among the prior art.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: the utility model provides a cold heat dissipation oil tank of transformer oil, includes oil tank frame main part and sets up in the oil tank base of oil tank frame main part bottom, its characterized in that, oil tank frame main part side enclose have a plurality of vertical defeated oil pipes that set up, oil tank frame main part on still be equipped with the inlet port and the oil outlet of defeated oil pipe intercommunication, the inlet port set up in oil tank frame main part upper end, the oil outlet set up in oil tank frame main part lower extreme, defeated oil pipe periphery wall still be provided with a plurality of radiating fin.

The utility model discloses a theory of operation: when the transformer works, transformer oil in the transformer oil tank is heated and rises to enter the oil delivery pipe through the oil inlet, when the oil enters the oil delivery pipe, the oil can be in contact with the inner wall of the oil delivery pipe, the outer wall of the oil delivery pipe can dissipate heat, the heat dissipation efficiency of the oil delivery pipe is further improved through the heat dissipation fins, and the oil flows back to the oil tank through the oil outlet after being cooled down through double heat dissipation, so that the circulation is continuous. Compared with the existing heat dissipation mode, the structure can greatly improve the heat dissipation effect and efficiency.

In the transformer oil cooling and heat dissipating oil tank, the length of the heat dissipating fin is consistent with that of the oil conveying pipe.

In the transformer oil cooling and heat dissipating oil tank, the section of the oil delivery pipe is circular.

In the transformer oil cooling and heat dissipating oil tank, the oil tank frame main body and the oil conveying pipe are both made of nano aluminum alloy composite materials.

In foretell transformer oil cold heat dissipation oil tank, oil tank frame main part divide into a plurality of flexion and planomural portion, the both sides of flexion and planomural portion all be equipped with mosaic structure, the flexion set up in the corner of oil tank frame main part, planomural portion set up in the plane department of oil tank frame main part.

In foretell transformer oil cold heat dissipation oil tank, mosaic structure include trapezoidal arch, trapezoidal arch on be equipped with sand grip or recess.

In foretell transformer oil cold heat dissipation oil tank, defeated oil pipe quantity on the plane portion is two, two defeated oil pipe between still be equipped with connection baffle.

In the transformer oil cooling and heat dissipating oil tank, the number of the oil conveying pipes on the bending part is two, and a fixing hole is further formed between the two oil conveying pipes.

In the above transformer oil cooling and heat dissipating oil tank, the bending angle of the oil tank frame main body at the bending part is 90 degrees, and the heat dissipating fins on the oil tank frame main body at the plane part are all vertically arranged relative to the oil tank frame main body.

Compared with the prior art, the transformer oil cooling heat dissipation oil tank adopting the technical scheme has the beneficial effects that: the utility model has the advantages of high heat dissipation efficiency, light weight, good corrosion prevention effect and easy modular production.

Drawings

Fig. 1 is an isometric view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a schematic isometric view of the structure of a main body part of a fuel tank frame according to the present invention;

FIG. 4 is a schematic view of an embodiment of the present invention;

FIG. 5 is a schematic view of another embodiment of the present invention;

fig. 6 is a schematic view of an embodiment of the fuel tank base of the present invention.

In the figure, 1, a tank frame body; 3. a heat dissipating fin; 4. connecting a baffle plate; 5. a fixing hole; 6. a bending section; 7. a planar portion; 8. splicing structures; 9. a trapezoidal protrusion; 10. a convex strip; 11. a groove; 12. an oil delivery pipe; 13. an oil inlet hole; 14. an oil outlet hole; 15. a fuel tank base.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-6, this transformer oil cooling oil tank includes oil tank frame main part 1 and sets up in the oil tank base 15 of oil tank frame main part 1 bottom, oil tank frame main part 1 side surround and have a plurality of vertical defeated oil pipes 12 that set up, oil tank frame main part 1 on still be equipped with the inlet port 13 and the oil outlet 14 of defeated oil pipe 12 intercommunication, inlet port 13 set up in oil tank frame main part 1 upper end, oil outlet 14 set up in oil tank frame main part 1 lower extreme, defeated oil pipe 12 periphery wall still be provided with a plurality of radiating fin 3. The tank mount 15 may have a rectangular, circular, triangular, or oval shape according to the shape of the tank frame body 1.

In more detail, the length of the heat dissipation fin 3 is consistent with that of the oil delivery pipe 12. The heat dissipation area is increased, and the heat dissipation efficiency is improved.

In more detail, the cross-sectional shape of the oil delivery pipe 12 is circular. The round shape has higher structural strength than the square shape, and the round shape has higher space utilization rate than the square shape and other shapes.

In more detail, the oil tank frame body 1 and the oil delivery pipe 12 are made of nano aluminum alloy composite materials. The nano aluminum alloy composite material has the advantages of light weight, high strength, high rigidity, high shearing strength, small thermal expansion, high thermal stability, excellent electric conduction, heat conduction, wear resistance, corrosion resistance and the like, can be difficultly corroded during sea transportation, has a reinforcing effect far higher than that of micron-sized particles, has good interface bonding strength, has a smaller thermal expansion coefficient than that of micron-sized particles under the same volume fraction, is small in thermal residual stress, high in size stability, and improved in room temperature plasticity and high temperature creep property, and greatly improves the heat dissipation effect of the air-cooled heat dissipation oil tank frame of the transformer.

In more detail, three radiating fins 3 are arranged on each oil conveying pipe 12, and the cross section of each radiating fin 3 is in a T shape or a 1 shape. The number of the radiating fins 3 can be more than three, and the number of the radiating fins 3 is preferably three, so that the distances among the six radiating fins 3 on the two oil pipelines 12 are basically consistent, the appearance is more harmonious and attractive, and the radiating effect is good.

In a further elaboration, the oil tank frame main body 1 be divided into a bending portion 6 and a plane portion 7, the two sides of the bending portion 6 and the plane portion 7 are both provided with a splicing structure 8, the bending portion 6 is arranged at a corner of the oil tank frame main body 1, and the plane portion 7 is arranged at a plane of the oil tank frame main body 1. The bent portion 6 may have any angle such as a right angle, an obtuse angle, an acute angle, or the like, or may have a circular arc shape.

By adopting the structure, the oil tank frame main body 1 of the transformer oil cooling heat dissipation oil tank can form shapes such as square, rectangle, ellipse, triangle and the like, and the combination mode is various. Fig. 2 shows a square combination, fig. 4 shows a circular combination, and fig. 5 shows a triangle combination.

In further detail, the splicing structure 8 comprises a trapezoidal protrusion 9, and a convex strip 10 or a groove 11 is arranged on the trapezoidal protrusion 9. Trapezoidal arch 9 can increase the welding area of junction, promotes the intensity of junction simultaneously, and sand grip 10 and the cooperation of recess 11 are connected.

In more detail, the number of the oil delivery pipes 12 on the plane part 7 is two, and a connecting baffle 4 is further arranged between the two oil delivery pipes 12. Connecting baffle 4 can increase strength, can also form a cavity simultaneously between defeated oil pipe 12 and oil tank frame main part 1, utilizes the principle that hot air rises, and the cold air of transformer bottom is heated and rises, takes away defeated oil pipe 12 and oil tank frame main part 1's heat during through the cavity for defeated oil pipe 12 and oil tank frame main part 1's surface radiating effect.

In more detail, the number of the oil delivery pipes 12 on the bending part 6 is two, and a fixing hole 5 is further arranged between the two oil delivery pipes 12. The fixing hole 5 can fix the tank frame main body 1.

In more detail, the bending angle of the oil tank frame body 1 of the bending part 6 is 90 degrees, and the radiating fins 3 on the oil tank frame body 1 of the plane part 7 are all vertically arranged relative to the oil tank frame body 1. The bending part is provided with a round angle. The space utilization rate is improved, and the heat dissipation is more uniform.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the tank frame body 1, the heat dissipating fins 3, the connecting baffle 4, the fixing holes 5, the bent portions 6, the flat portions 7, the splice structures 8, the trapezoidal projections 9, the convex strips 10, the grooves 11, the oil delivery pipes 12, the oil inlet holes 13, the oil outlet holes 14, the tank base 15, and the like are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a cold heat dissipation oil tank of transformer oil, includes oil tank frame main part (1) and sets up in oil tank base (15) of oil tank frame main part (1) bottom, a serial communication port, oil tank frame main part (1) side surround have a plurality of vertical defeated oil pipes (12) that set up, oil tank frame main part (1) on still be equipped with inlet port (13) and oil outlet (14) with defeated oil pipe (12) intercommunication, inlet port (13) set up in oil tank frame main part (1) upper end, oil outlet (14) set up in oil tank frame main part (1) lower extreme, defeated oil pipe (12) periphery wall still be provided with a plurality of radiating fin (3).

2. The transformer oil cooling heat dissipation oil tank as claimed in claim 1, wherein the length of the heat dissipation fin (3) is consistent with that of the oil delivery pipe (12).

3. The transformer oil cooling and heat dissipating oil tank as claimed in claim 1, wherein the oil delivery pipe (12) has a circular cross-sectional shape.

4. The transformer oil cooling and heat dissipating oil tank as claimed in claim 1, wherein the oil tank frame body (1) and the oil delivery pipe (12) are made of nano aluminum alloy composite materials.

5. The transformer oil cooling and heat dissipating oil tank of claim 1, wherein the oil tank frame body (1) is divided into a bending portion (6) and a flat portion (7), both sides of the bending portion (6) and the flat portion (7) are provided with splicing structures (8), the bending portion (6) is arranged at a corner of the oil tank frame body (1), and the flat portion (7) is arranged at a plane of the oil tank frame body (1).

6. The transformer oil cooling and heat dissipating oil tank as claimed in claim 5, wherein the splicing structure (8) comprises a trapezoidal protrusion (9), and the trapezoidal protrusion (9) is provided with a convex strip (10) or a concave groove (11).

7. The transformer oil cooling and heat dissipating oil tank as claimed in claim 5, wherein the number of the oil delivery pipes (12) on the planar portion (7) is two, and a connecting baffle (4) is further arranged between the two oil delivery pipes (12).

8. The transformer oil cooling and heat dissipating oil tank as claimed in claim 5, wherein the number of the oil delivery pipes (12) on the bending portion (6) is two, and a fixing hole (5) is further formed between the two oil delivery pipes (12).

9. The transformer oil cooling heat dissipation oil tank as recited in claim 5, wherein the bending angle of the oil tank frame body (1) at the bending part (6) is 90 degrees, and the heat dissipation fins (3) on the oil tank frame body (1) at the plane part (7) are all vertically arranged relative to the oil tank frame body (1).