CN210984460U - Oil cooling heat dissipation module for transformer oil tank - Google Patents

Abstract

The utility model provides a cold thermal module of transformer tank oil belongs to transformer heat dissipation technical field. It has solved current transformer tank heat dissipation frame structure and has been generally for integral, and not only processing difficulty but also installation are troublesome, are unfavorable for processing, can't effectively dispel the heat to the corner of oil tank simultaneously, cause the heat dissipation inhomogeneous, the not high problem of radiating efficiency. The utility model discloses a crooked main part, the identical transformer tank corner surface of crooked main part inner wall, crooked main part left and right sides all are equipped with mosaic structure, are connected with defeated oil pipe in the crooked main part, are equipped with inlet port and the oil outlet that communicates with defeated oil pipe in the crooked main part, and the inlet port sets up in crooked main part upper end, and the oil outlet sets up in crooked main part lower extreme, still installs the guide duct in the defeated oil pipe, and the guide duct inner wall still is equipped with the heat dissipation tooth of a plurality of even settings. 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 heat dissipation module 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 module.

Background

During transformer operation, heat generated by losses in the windings and core must be dissipated in time to avoid insulation damage due to overheating. 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, and the processing cost is high moreover, can't realize modular production, can't effectively dispel the heat to the corner of oil tank in addition, causes the heat dissipation inhomogeneous, and radiating efficiency is not high, influences the operation of transformer.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that exists among the prior art, provide a radiating effect is good, concatenation is convenient, modular transformer tank oil cooling heat dissipation module.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: the utility model provides a transformer tank oil cooling heat dissipation module, its characterized in that, includes crooked main part, crooked main part inner wall coincide transformer tank corner surface, crooked main part left and right sides all be equipped with mosaic structure, crooked main part on be connected with defeated oil pipe, crooked main part on be equipped with the inlet port and the oil outlet of defeated oil pipe intercommunication, the inlet port set up in crooked main part upper end, the oil outlet set up in crooked main part lower extreme, defeated oil pipe in still install the guide duct, the guide duct inner wall still be equipped with the heat dissipation tooth of a plurality of even settings.

The utility model discloses a theory of operation: during assembly, the plurality of bent 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 rises by heating and enters an oil delivery pipe through an oil inlet, when the oil enters the oil delivery pipe, the oil can be contacted with the inner wall of the oil delivery pipe and the outer wall of an air guide pipe, partial heat dissipation can be carried out on the outer wall of the oil delivery pipe, due to the principle that cold air rises and falls, when the temperature of the air guide pipe rises, the air temperature in the air guide pipe rises and can be discharged from an opening at the upper end of the air guide pipe, cold air below the air guide pipe is supplemented continuously, the air guide pipe is heated and rises continuously in the process of introduction, the chimney-like effect is formed, the oil flows back into the oil tank through an oil outlet after being cooled and falls by. Compared with the existing structure that the oil conveying pipe is welded on the oil tank directly, the structure realizes the advantages of low processing difficulty, convenience in installation and wide application range by modularizing the outer frame of the transformer oil tank, and simultaneously compared with the existing heat dissipation mode, the structure can greatly improve the heat dissipation effect and efficiency, and has the advantages of uniform heat dissipation, simple structure and convenience in processing.

In foretell oil tank oil of transformer oil cools off heat module, mosaic structure divide into sand grip and recess, crooked main part left side be equipped with the recess, the right side is equipped with the sand grip, recess and sand grip length unanimous with crooked main part length, recess and sand grip position still be equipped with trapezoidal arch, trapezoidal arch length unanimous with crooked main part length.

In the oil cooling and heat dissipating module of the transformer oil tank, the cross sections of the oil delivery pipe and the air guide pipe are both circular.

In the oil cooling heat dissipation module for the transformer oil tank, the inner wall of the air duct and the surfaces of the heat dissipation teeth are both provided with corrugated bulges.

In the oil cooling heat dissipation module of the transformer oil tank, the peripheral wall of the oil delivery pipe is further provided with the heat dissipation fins, a gap is formed between the two heat dissipation fins, and the length of each heat dissipation fin is consistent with that of the oil delivery pipe.

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

In the oil cooling heat dissipation module of the transformer oil tank, the bending main body is made of a nano aluminum alloy composite material.

In the oil cooling heat dissipation module of the transformer oil tank, the number of the oil conveying pipes is two, a fixing hole is further formed between the oil conveying pipes, and the fixing hole is used for installing and fixing the bent main body.

In the oil cooling heat dissipation module of the transformer oil tank, the thickness of the bent main body is larger than the thickness of the oil delivery pipe and the air guide pipe.

Compared with the prior art, the transformer oil tank oil cooling heat dissipation module adopting the technical scheme 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 view of a connection mode of the present invention.

In the figure, 1, a main body is bent; 2. an oil delivery pipe; 3. an oil inlet hole; 4. an oil outlet hole; 5. an air guide pipe; 6. a heat dissipating fin; 7. a groove; 8. a convex strip; 9. a trapezoidal protrusion; 10. a fixing hole; 11. splicing structures; 12. a heat dissipating tooth; 13. corrugated protrusions.

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. 1-3, the oil-cooling heat dissipation module for the transformer oil tank comprises a bent main body 1, wherein the inner wall of the bent main body 1 is matched with the outer surface of the corner of the transformer oil tank, splicing structures 11 are arranged on the left side and the right side of the bent main body 1, an oil delivery pipe 2 is connected to the bent main body 1, an oil inlet 3 and an oil outlet 4 which are communicated with the oil delivery pipe 2 are arranged on the bent main body 1, the oil inlet 3 is arranged at the upper end of the bent main body 1, the oil outlet 4 is arranged at the lower end of the bent main body 1, an air guide pipe 5 is further arranged in the oil delivery pipe 2, and a plurality of heat dissipation teeth 12 which are uniformly arranged are. The end parts of the oil delivery pipe 2 and the air guide pipe 5 can be welded and fixed by adopting welding flanges. The welding adopts laser welding and argon arc welding.

Further saying, mosaic structure 11 divide into sand grip 8 and recess 7, 1 left side of crooked main part be equipped with recess 7, the right side is equipped with sand grip 8, recess 7 and sand grip 8 length unanimous with 1 length of crooked main part, recess 7 and sand grip 8 position still be equipped with trapezoidal arch 9, trapezoidal arch 9 length unanimous with 1 length of crooked main part. By adopting the structure, the transformer has the advantages of convenient installation, suitability for transformers of various models, reduction of the burden of designers, contribution to modularized mass production, and easiness in management and maintenance.

In more detail, the cross sections of the oil delivery pipe 2 and the air guide pipe 5 are both circular. The circular oil delivery pipe 2 and the air guide pipe 5 have higher strength, and simultaneously have high space utilization rate under the same occupied space, larger air intake and oil circulation and high space utilization rate.

In more detail, the inner wall of the air duct 5 and the surfaces of the heat dissipation teeth 12 are both provided with corrugated protrusions 13. The corrugated protrusions 13 can increase the heat dissipation area and improve the heat dissipation efficiency.

In more detail, the circumferential wall of the oil pipeline 2 is further provided with radiating fins 6, the cross section of each radiating fin 6 is T-shaped or 1-shaped, or other shapes, a gap is formed between every two radiating fins 6, and the length of each radiating fin 6 is consistent with that of the oil pipeline 2. Further promote the radiating effect of defeated oil pipe 2.

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 crooked main part 1 to the at utmost for transformer oil's flow maximize does not influence the radiating efficiency of fluid again simultaneously.

In further detail, the bending main body 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 in marine 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 dimensional stability, and improved in room temperature plasticity and high temperature creep property, and greatly improves the heat dissipation effect of the transformer oil cooling heat dissipation splicing structure 11.

In a further elaboration, the number of the oil delivery pipes 2 is two, a fixing hole 10 is further formed between the two oil delivery pipes 2, and the fixing hole 10 is used for installing and fixing the bending main body 1.

In more detail, the thickness of the bending main body 1 is larger than the thickness of the oil delivery pipe 2 and the air guide pipe 5. The bent body 1 requires higher strength to support the oil delivery pipe 2 and the oil tank, and the oil delivery pipe 2 is thinner than the contact heat dissipation plate, so that the weight of the oil delivery pipe 2 can be reduced.

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 terms such as the curved main body 1, the oil delivery pipe 2, the oil inlet hole 3, the oil outlet hole 4, the air guide pipe 5, the heat radiating fins 6, the grooves 7, the ribs 8, the trapezoidal protrusions 9, the fixing holes 10, the splicing structures 11, the heat radiating teeth 12, the corrugated protrusions 13, 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 (7)

1. The oil cooling heat dissipation module of the transformer oil tank is characterized by comprising a bent main body (1), splicing structures (11) are arranged on the left side and the right side of the bent main body (1), an oil delivery pipe (2) is connected to the bent main body (1), an oil inlet (3) and an oil outlet (4) which are communicated with the oil delivery pipe (2) are arranged on the bent main body (1), the oil inlet (3) is arranged at the upper end of the bent main body (1), the oil outlet (4) is arranged at the lower end of the bent main body (1), an air guide pipe (5) is further arranged in the oil delivery pipe (2), and a plurality of heat dissipation teeth (12) which are uniformly arranged are further arranged on the inner wall of the air guide pipe (5); the number of the oil delivery pipes (2) is two, a fixing hole (10) is further formed between the two oil delivery pipes (2), and the fixing hole (10) is used for installing and fixing the bending main body (1); the thickness of the bending main body (1) is larger than the thickness of the oil delivery pipe (2) and the air guide pipe (5).

2. The oil cooling and heat dissipating module of the transformer oil tank according to claim 1, wherein the splicing structure (11) is divided into a convex strip (8) and a concave groove (7), the concave groove (7) is formed in the left side of the curved main body (1), the convex strip (8) is formed in the right side of the curved main body, the lengths of the concave groove (7) and the convex strip (8) are consistent with the length of the curved main body (1), trapezoidal protrusions (9) are further arranged at positions where the concave groove (7) and the convex strip (8) are located, and the length of the trapezoidal protrusion (9) is consistent with the length of the curved main body (1).

3. The oil cooling and heat dissipating module of the oil tank of the transformer as claimed in claim 1, wherein the cross-sectional shapes of the oil delivery pipe (2) and the air guide pipe (5) are both circular.

4. The oil cooling and heat dissipating module of the oil tank of the transformer as claimed in claim 1, wherein the inner wall of the air duct (5) and the surface of the heat dissipating teeth (12) are provided with corrugated protrusions (13).

5. The oil cooling and heat dissipation module for the transformer oil tank is characterized in that heat dissipation fins (6) are further arranged on the peripheral wall of the oil delivery pipe (2), a gap is formed between the two heat dissipation fins (6), and the length of each heat dissipation fin (6) is consistent with that of the oil delivery pipe (2).

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

7. The oil cooling and heat dissipating module of the oil tank of the transformer as claimed in claim 1, wherein the curved main body (1) is made of nano aluminum alloy composite material.

Images