CN216597221U

CN216597221U - Superconducting oilless heat dissipation structure of large transformer

Info

Publication number: CN216597221U
Application number: CN202121746479.5U
Authority: CN
Inventors: 仇传祯
Original assignee: Zibo Dingdian Electrical Equipment Co ltd
Current assignee: Zibo Dingdian Electrical Equipment Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-05-24
Anticipated expiration: 2031-07-29

Abstract

The utility model relates to a superconducting oil-free heat dissipation structure of a large transformer, which comprises a heat conduction oil pipe, wherein connecting flanges are arranged at two ends of the heat conduction oil pipe, a fixed frame is fixed at the top of the heat conduction oil pipe, a plurality of heat conduction sheets made of micro heat pipe array superconducting materials are arranged on the fixed frame, and the top end and the bottom end of each heat conduction sheet have height difference. The heat conducting fin made of the micro heat pipe array superconducting material and fixed on the heat conducting oil pipe through the fixing frame is arranged at the top of the heat conducting oil pipe, heat can be transferred from bottom to top by utilizing the super heat conducting performance of the heat conducting fin, so that heat dissipation is realized, the heat conducting characteristic of the heat conducting fin is that heat is rapidly conducted from a low part to a high part by heating, the circulating transformer oil is saved, a large amount of manpower for manufacturing a plurality of original heat radiating fins is saved, the leakage performance of the heat radiating fins is guaranteed, and the reliability of the safety quality of the heat radiating fins is improved.

Description

Superconducting oilless heat dissipation structure of large transformer

Technical Field

The utility model belongs to the technical field of transformer heat dissipation, and particularly relates to a superconducting oil-free heat dissipation structure of a large transformer.

Background

At present, the externally-hung heat conducting fins of a large transformer, whether steel sheet type, iron sheet type or aluminum alloy type, are welded by an upper and lower oil guiding main pipe which is connected with two sides of the transformer and is respectively provided with an upper oil guiding port and a lower oil guiding port and a plurality of heat conducting fins which are connected between the upper oil guiding port and the lower oil guiding port and circulate up and down, so that the purpose that the transformer oil flows out from the upper high-temperature transformer oil in the transformer from the upper oil guiding main pipe and enters the plurality of heat conducting fins for heat dissipation is achieved, and the transformer oil is cooled from top to bottom through the heat conducting fins and then circulates to an inner cavity of the transformer through a lower oil returning oil guiding pipe to achieve the heat dissipation in a reciprocating circulation mode.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a superconducting oil-free heat dissipation structure of a large transformer, and solves the problems that the existing heat dissipation structure needs a lot of heat conduction oil to participate in circulating heat dissipation, the heat conduction oil is wasted, in addition, a complex and sealed heat conduction oil conduction sheet circulation structure needs to be processed, the labor is wasted, and the heat conduction sheet is easy to leak oil.

The utility model relates to a superconducting oil-free heat dissipation structure of a large transformer, which comprises a heat conduction oil pipe, wherein connecting flanges are arranged at two ends of the heat conduction oil pipe, a fixing frame is fixed at the top of the heat conduction oil pipe, a plurality of heat conduction sheets made of micro heat pipe array superconducting materials are arranged on the fixing frame, and the top end and the bottom end of each heat conduction sheet have height difference.

Preferably, one end of the heat conduction oil pipe is connected with a heat conduction oil outlet of the transformer through a flange, the other end of the heat conduction oil pipe is connected with an oil return pipe through a flange, and the oil return pipe is connected with a heat conduction oil return opening of the transformer.

Preferably, the heat conducting oil pipe and the connecting flanges at the two ends are integrally cast. The connection is convenient to manufacture.

Preferably, heat conduction oil pipe's top outer end is equipped with mounting flange, and the mount includes bottom plate and roof, through link fixed connection between the bottom plate and the roof outside, the heat conduction oil pipe top is equipped with the opening, and mounting flange is fixed with the bottom plate, is equipped with the sealing washer between mounting flange and the bottom plate, and the top of bottom plate and roof bottom are fixed with a plurality of fixed plates, are equipped with the slot that is used for pegging graft the conducting strip on the fixed plate. The ultrathin heat conducting fins can be fixed through the top plate and the connecting frame, the heat conducting fins are prevented from being damaged, the heat conducting fins are connected and installed through the bottom plate, and the heat conducting oil can be prevented from being leaked through the sealing ring. The lower end of the heat-conducting fin is also sealed with the bottom plate. An oil storage cavity is arranged in the heat conduction oil pipe. The opening sets up at oil storage chamber top, and the sealing washer is sealed between oil storage chamber top opening and the bottom plate also, and oil storage chamber and mounting flange and the flange at both ends are all as an organic whole casting formation.

Preferably, the upper fixing plate and the lower fixing plate are respectively integrally extruded with the top plate and the bottom plate, each fixing plate is divided into two parts, and the slots are located on the contact surfaces of the two fixing plates. The manufacture is convenient.

Preferably, both sides of every conducting strip all are equipped with the cushion, and the cushion passes through bolt fixed connection. Can compress tightly the cushion through the bolt to make the conducting strip paste tight slot lateral wall, prevent that there is the clearance in conducting strip and slot to influence the heat conduction effect.

Compared with the prior art, the utility model has the advantages that:

the heat conducting fin made of the micro heat pipe array superconducting material fixed on the heat conducting oil pipe through the fixing frame is installed at the top of the heat conducting oil pipe, and heat transfer can be carried out from bottom to top by utilizing the super heat conducting performance of the heat conducting fin, so that heat dissipation is carried out.

Drawings

FIG. 1 is a schematic view of the mounting structure of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a left side view of the structure of FIG. 2;

FIG. 4 is a schematic diagram of the exploded structure of FIG. 2;

FIG. 5 is a partial schematic view of the base plate;

in the figure: 1. a connecting frame; 2, a top plate; 3. a heat conductive sheet; 4. a base plate; 5. a connecting flange; 6. a heat conducting oil pipe; 7. an oil return pipe; 8. a transformer; 9. fixing flange, 10, opening, 11, fixed plate, 12, slot.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Embodiment 1, as shown in fig. 1 to 5, the present invention is a superconducting oil-free heat dissipation structure of a large transformer, including a heat conduction oil pipe 6, two ends of the heat conduction oil pipe 6 are provided with connection flanges 5, a top of the heat conduction oil pipe 6 is fixed with a fixing frame, the fixing frame is provided with a plurality of heat conduction fins 3 made of micro heat pipe array superconducting material, and a height difference exists between top ends and bottom ends of the heat conduction fins 3.

One end connecting flange 5 of heat conduction oil pipe 6 is connected with the conduction oil export of transformer 8, and the other end connecting flange 5 of heat conduction oil pipe 6 is connected with back oil pipe 7, and back oil pipe 7 is connected with the conduction oil return opening of transformer 8.

The heat conducting oil pipe 6 and the connecting flanges 5 at two ends are integrally cast.

The top outer end of heat conduction oil pipe 6 is equipped with mounting flange 9, the mount includes bottom plate 4 and roof 2, through 1 fixed connection of link between the 2 outsides of bottom plate 4 and roof, 6 tops of heat conduction oil pipe are equipped with opening 10, mounting flange 9 is fixed with bottom plate 4, be equipped with the sealing washer between mounting flange 9 and the bottom plate 4, the top of

bottom plate

4 and 2 bottoms of roof are fixed with a plurality of fixed plates 11, be equipped with the slot 12 that is used for the conducting strip of pegging graft on the fixed plate 11.

The working principle is as follows: the transformer 8 enters the heat conduction oil pipe 6 from the heat conduction hot oil that the export came out, dispels the heat in the heat conduction oil pipe 6, and the heat transmits radiating fin 3 through heat conduction oil pipe 6, utilizes radiating fin 3's super heat conduction performance, carries out the heat transfer, and the heat in the heat conduction oil transmits the heat dissipation from radiating fin 3's the below to going up, and the heat conduction oil after the heat dissipation gets into back oil pipe 7 from the other end of heat conduction oil pipe 6, then flows back in the transformer 8, accomplishes the circulation.

In embodiment 2, in addition to embodiment 1, the upper and lower fixing plates 11 are respectively integrally press-molded with the top plate 2 and the bottom plate 4, each fixing plate 11 is divided into two parts, and the insertion grooves 12 are provided on the contact surfaces of the two fixing plates 11.

The both sides of every conducting strip 3 all are equipped with the cushion, and the cushion passes through bolt fixed connection. Can compress tightly the cushion through the bolt to make the conducting strip paste tight slot lateral wall, prevent that there is the clearance in conducting strip and slot to influence the heat conduction effect.

In summary, the heat conducting sheet made of the micro heat pipe array superconducting material fixed on the heat conducting oil pipe through the fixing frame is arranged at the top of the heat conducting oil pipe, heat can be transferred from bottom to top by utilizing the super heat conducting performance of the heat conducting sheet, so that heat dissipation is performed, and the heat conducting property of the heat conducting sheet is that heat is rapidly conducted from the lower part to the higher part, so that the existing upper heat conducting oil pipe, the connecting flange and the oil storage cavity are finished by one-time aluminum casting, and the superconducting sheet is vertically connected with the oil storage cavity up and down, thereby achieving the purpose of avoiding the original heat dissipation mode of needing circulating oil, saving circulating pressure changing oil, simultaneously saving a large amount of manpower for manufacturing a plurality of heat conducting sheets, ensuring the leakage performance of the heat conducting sheet, and improving the reliability of the safety quality of the heat conducting sheet.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "up", "down", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are for convenience only to describe the present invention without requiring the present invention to be necessarily constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Claims

1. The utility model provides a superconductive oilless heat radiation structure of large-scale transformer, includes heat conduction oil pipe (6), and the both ends of heat conduction oil pipe (6) are equipped with flange (5), its characterized in that: the top of the heat conducting oil pipe (6) is fixed with a fixing frame, a plurality of heat conducting fins (3) made of micro heat pipe array superconducting materials are installed on the fixing frame, and the top end and the bottom end of each heat conducting fin (3) have a height difference.

2. The superconducting oil-free heat dissipation structure of the large transformer according to claim 1, wherein: one end connecting flange (5) of the heat conducting oil pipe (6) is connected with a heat conducting oil outlet of the transformer (8), the other end connecting flange (5) of the heat conducting oil pipe (6) is connected with an oil return pipe (7), and the oil return pipe (7) is connected with a heat conducting oil return port of the transformer (8).

3. The superconducting oil-free heat dissipation structure of the large transformer according to claim 2, wherein: the heat conducting oil pipe (6) and the connecting flanges (5) at the two ends are integrally cast.

4. The superconducting oil-free heat dissipation structure of the large transformer according to claim 1, wherein: the top outer end of heat conduction oil pipe (6) is equipped with mounting flange (9), the mount includes bottom plate (4) and roof (2), through link (1) fixed connection between bottom plate (4) and roof (2) the outside, heat conduction oil pipe (6) top is equipped with opening (10), mounting flange (9) are fixed with bottom plate (4), be equipped with the sealing washer between mounting flange (9) and bottom plate (4), the top of bottom plate (4) and roof (2) bottom are fixed with a plurality of fixed plates (11), be equipped with slot (12) that are used for pegging graft the conducting strip on fixed plate (11).

5. The superconducting oil-free heat dissipation structure of the large transformer according to claim 4, wherein: the upper fixing plate (11) and the lower fixing plate (11) are respectively integrally extruded with the top plate (2) and the bottom plate (4) in an extrusion molding mode, each fixing plate (11) is divided into two parts, and the slots (12) are located on the contact surfaces of the two fixing plates (11).

6. The superconducting oil-free heat dissipation structure of the large transformer according to claim 5, wherein: cushion blocks are arranged on two sides of each heat-conducting fin (3) and fixedly connected through bolts.