CN210575440U

CN210575440U - Oil cooling and heat dissipation splicing sheet for transformer oil tank

Info

Publication number: CN210575440U
Application number: CN201921881241.6U
Authority: CN
Inventors: 翁天海; 范水明; 高云; 秦樟琦; 郭萍; 陆冬
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: 2020-05-19
Anticipated expiration: 2029-11-04

Abstract

The utility model provides a cold heat dissipation splicing piece of transformer tank oil belongs to transformer heat dissipation technical field. The transformer oil tank solves the problems that an existing transformer oil tank adopts a direct welding oil through pipe, transformer oil is circulated between the oil through pipes to dissipate heat, machining cost is high, modular production cannot be achieved, and heat dissipation efficiency is low. The utility model discloses an installation is dull and stereotyped, and the dull and stereotyped left and right sides of installation all is equipped with mosaic structure, is connected with defeated oil pipe on the installation flat board, be equipped with on the installation flat board with the inlet port and the oil outlet of defeated oil pipe intercommunication, the inlet port sets up in the dull and stereotyped upper end of installation, the oil outlet sets up in the dull and stereotyped lower extreme of installation, still is equipped with a plurality of radiating fin on the defeated. The utility model has the advantages of the radiating efficiency is high, easy modular production, the processing degree of difficulty is low, simple to operate, application scope is wide.

Description

Oil cooling and heat dissipation splicing sheet for transformer oil tank

Technical Field

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

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 outer frame of current transformer tank's heat dissipation is the direct transformer tank that communicates of many defeated oil pipes usually, carries out fluid circulation heat dissipation through defeated oil pipe, however the heat dissipation frame processing of this kind of structure is comparatively troublesome moreover, and the processing cost is high, can't realize modular production, singly dispels the heat through defeated oil pipe outer wall, can't distribute away the heat effectively, therefore radiating efficiency is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a to the above-mentioned problem that exists among the prior art, a radiating efficiency height, modular transformer tank oil cold heat dissipation splicing piece are provided.

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 splicing piece of transformer tank oil, a serial communication port, it is dull and stereotyped including the installation, the dull and stereotyped left and right sides of installation all be equipped with mosaic structure, the installation dull and stereotyped on be connected with defeated oil pipe, the installation dull and stereotyped on be equipped with the inlet port and the oil outlet of defeated oil pipe intercommunication, the inlet port set up in the dull and stereotyped upper end of installation, the oil outlet set up in the dull and stereotyped lower extreme of installation, defeated oil pipe periphery wall on still be equipped with a plurality of radiating.

The utility model discloses a theory of operation: during assembly, the plane main bodies are spliced together through the splicing structure to form an oil tank frame; when the transformer works, transformer oil in a transformer oil tank is heated and rises to enter the oil delivery pipe through the oil inlet hole, and when the oil enters the oil delivery pipe, the oil can be in contact with the inner wall of the oil delivery pipe, and heat is dissipated through the outer wall of the oil delivery pipe and the heat dissipation fins. Adopt the setting of above-mentioned structure, this setting is with transformer tank frame modularization, has realized that the processing degree of difficulty is low, simple to operate, application scope are wide advantage, compares current radiating mode simultaneously, can improve radiating effect and efficiency greatly, simple structure moreover, processing is convenient.

In foretell transformer tank oil cold heat dissipation splicing piece, mosaic structure divide into sand grip and recess, the dull and stereotyped left side of installation be equipped with the recess, the right side is equipped with the sand grip, recess and sand grip length unanimous with the dull and stereotyped length of installation, recess and sand grip position still be equipped with trapezoidal arch, dull and stereotyped width direction central line both sides of installation also be equipped with two trapezoidal archs, trapezoidal protruding length unanimous with the dull and stereotyped length of installation.

In the splicing piece for oil cooling and heat dissipation of the transformer oil tank, the cross section of the oil conveying pipe is circular.

In the oil-cooling heat dissipation splicing piece for the transformer oil tank, a gap is formed between the two heat dissipation fins, and the lengths of the heat dissipation fins are consistent with the length of an oil conveying pipe.

In the oil-cooling heat dissipation splicing sheet for the transformer oil tank, the mounting flat plate is further provided with a positioning groove, and the oil inlet hole and the oil outlet hole are located in the positioning groove.

In the splicing sheet for oil cooling and heat dissipation of the transformer oil tank, the oil inlet hole and the oil outlet hole are waist holes.

In the splicing piece for oil cooling and heat dissipation of the transformer oil tank, the number of the oil conveying pipes is two, and a connecting baffle is connected between the two oil conveying pipes.

In the oil-cooling heat dissipation splicing sheet for the transformer oil tank, the installation flat plate is made of a nano aluminum alloy composite material.

In the oil-cooling heat dissipation splicing sheet for the transformer oil tank, the thickness of the installation flat plate is more than 4 mm.

Compared with the prior art, the transformer oil tank oil cooling splicing sheet has the beneficial effects that: the utility model has the advantages of the radiating efficiency is high, easy modular production, the processing degree of difficulty is low, simple to operate, application scope is wide.

Drawings

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

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

fig. 3 is a schematic diagram of an embodiment of the present invention.

In the figure, 1, a flat plate is installed; 2. an oil delivery pipe; 3. an oil inlet hole; 4. an oil outlet hole; 5. a heat dissipating fin; 6. A groove; 7. a convex strip; 8. a trapezoidal protrusion; 9. positioning a groove; 10. connecting a baffle plate; 11. and (5) splicing the structure.

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. 1-2, this transformer tank oil cold heat dissipation splicing piece is including installation flat board 1, the dull and stereotyped 1 left and right sides of installation all be equipped with mosaic structure 11, installation flat board 1 on be connected with defeated oil pipe 2, installation flat board 1 on be equipped with the inlet port 3 and the oil outlet 4 of defeated oil pipe 2 intercommunication, inlet port 3 set up in installation flat board 1 upper end, oil outlet 4 set up in installation flat board 1 lower extreme, defeated oil pipe 2 periphery wall on still be equipped with a plurality of radiating fin 5. The problem of current transformer tank frame processing difficulty has been solved to the modular structure, utilizes defeated oil pipe 2 self and air contact to carry out partial heat dissipation, and radiating fin 5 can all effectively increase heat radiating area, and the radiating effect is good.

Further saying, mosaic structure 11 divide into sand grip 7 and recess 6, dull and stereotyped 1 left side of installation be equipped with recess 6, the right side is equipped with sand grip 7, recess 6 and sand grip 7 length unanimous with dull and stereotyped 1 length of installation, recess 6 and sand grip 7 position still be equipped with trapezoidal arch 8, dull and stereotyped 1 width direction central line both sides of installation also be equipped with two trapezoidal arch 8, trapezoidal arch 8 length unanimous with dull and stereotyped 1 length of installation. Adopt the setting of above-mentioned structure for every installation flat board 1 forms a module, with a plurality of modules according to transformer tank contour assembly enclose into the round can, simple to operate can be suitable for the transformer tank of multiple model moreover, has lightened designer's burden, is favorable to modularization mass production, easy to manage and maintain.

In more detail, the section of the oil pipeline 2 is circular. The circular oil delivery pipe 2 has higher strength, larger area under the same occupied space, larger oil inlet amount and high space utilization rate.

In a further elaboration, a gap is formed between the two radiating fins 5, and the length of the radiating fins 5 is consistent with that of the oil conveying pipe 2. Further promote the radiating effect of defeated oil pipe 2. The cross-section of the heat radiating fin 5 may be T-shaped or 1-shaped.

In a further elaboration, the installation flat plate 1 is further provided with a positioning groove 9, and the oil inlet hole 3 and the oil outlet hole 4 are located in the positioning groove 9. The oil inlet hole 3 and the oil outlet hole 4 can be conveniently positioned during machining, and the machining precision of the oil inlet hole 3 and the oil outlet hole 4 can be improved.

In more detail, the oil inlet hole 3 and the oil outlet hole 4 are waist holes. The kidney hole can utilize defeated oil pipe 2 and the contact surface of installation flat board 1 to the at utmost for transformer oil's flow maximize does not influence the radiating efficiency of fluid again simultaneously.

In more detail, the number of the oil delivery pipes 2 is two, and a connecting baffle 10 is connected between the two oil delivery pipes 2. Connecting baffle 10 can increase intensity, can also form a cavity similar to the guide duct simultaneously between defeated oil pipe 2 and installation flat board 1, utilizes the principle that hot-air rises to form the air current through the cavity, dispels the heat fast to transformer oil for defeated oil pipe 2's surface radiating effect.

In a further elaboration, each oil pipe is provided with three radiating fins 5, and the distances between every two adjacent radiating fins 5 are consistent.

In further detail, the installation flat plate 1 is made of a nano aluminum alloy composite material. 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 oil cooling heat dissipation splicing sheet of the transformer oil tank.

More specifically, the thickness of the mounting plate 1 is 4mm or more. The strength of the installation plate 1 is ensured.

As shown in fig. 3, a plurality of installation main boards 1 are spliced together, connected and welded and sealed by grooves 6 and convex strips 7, and connected by other parts at the corners, of course, the corners can also be rounded, and only one of the connection modes is adopted here.

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 installation plate 1, the oil delivery pipe 2, the oil inlet hole 3, the oil outlet hole 4, the heat radiating fin 5, the groove 6, the rib 7, the trapezoidal protrusion 8, the positioning groove 9, the connection baffle 10, the splice structure 11, etc. 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 splicing piece of transformer tank oil, a serial communication port, including installation flat board (1), the installation flat board (1) left and right sides all be equipped with mosaic structure (11), installation flat board (1) on be connected with defeated oil pipe (2), installation flat board (1) on be equipped with inlet port (3) and oil outlet (4) of defeated oil pipe (2) intercommunication, inlet port (3) set up in installation flat board (1) upper end, oil outlet (4) set up in installation flat board (1) lower extreme, defeated oil pipe (2) periphery wall on still be equipped with a plurality of radiating fin (5).

2. The splicing sheet for the oil cooling and heat dissipation of the transformer oil tank as claimed in claim 1, wherein the splicing structure (11) is divided into a convex strip (7) and a groove (6), the left side of the installation flat plate (1) is provided with the groove (6), the right side of the installation flat plate is provided with the convex strip (7), the lengths of the groove (6) and the convex strip (7) are consistent with the length of the installation flat plate (1), the positions of the groove (6) and the convex strip (7) are also provided with trapezoidal bulges (8), two sides of the center line of the width direction of the installation flat plate (1) are also provided with two trapezoidal bulges (8), and the length of the trapezoidal bulges (8) is consistent with the length of the installation flat plate (1).

3. The splicing piece for cooling and radiating oil of the transformer oil tank according to claim 1, wherein the cross section of the oil delivery pipe (2) is circular.

4. The splicing sheet for the oil cooling and heat dissipation of the transformer oil tank as claimed in claim 1, wherein a gap is formed between the two heat dissipation fins (5), and the length of each heat dissipation fin (5) is consistent with that of the oil delivery pipe (2).

5. The splicing sheet for the oil cooling and heat dissipation of the transformer oil tank as claimed in claim 1, wherein the mounting plate (1) is further provided with a positioning groove (9), and the oil inlet hole (3) and the oil outlet hole (4) are located in the positioning groove (9).

6. The splicing sheet for oil cooling and heat dissipation of the transformer oil tank as claimed in claim 1, wherein the oil inlet hole (3) and the oil outlet hole (4) are waist-shaped holes.

7. The splicing piece for cooling and radiating oil of the transformer oil tank according to claim 1, wherein the number of the oil conveying pipes (2) is two, and a connecting baffle (10) is further connected between the two oil conveying pipes (2).

8. The splicing piece for the oil cooling and heat dissipation of the transformer oil tank as claimed in claim 1, wherein the mounting flat plate (1) is made of a nano aluminum alloy composite material.

9. The splicing piece for oil cooling and heat dissipation of the transformer oil tank as recited in claim 1, wherein the thickness of the mounting flat plate (1) is more than 4 mm.