CN220171887U - Cooling system of oil immersed transformer - Google Patents

Abstract

The utility model discloses a cooling system of an oil immersed transformer, which relates to the technical field of transformer cold area systems, in particular to a cooling system of an oil immersed transformer. Make the outside fixed connection of taking out oil pipe send oil pipe, the position fixed mounting that is close to the bottom in the outside of casing simultaneously has the back flow, send oil pipe and back flow between install two connecting blocks and a plurality of shunt tubes, when the in-process of use, the cooling oil is conducted to sending oil pipe and is passed through the shunt tubes downwards and flow back to the back flow through the shunt tubes through the oil pipe, in the in-process through the shunt tubes, the diameter value of shunt tubes is less can be with heat conduction to external fast, the efficiency of heat conduction is improved, the security of use is guaranteed.

Description

Cooling system of oil immersed transformer

Technical Field

The utility model relates to the technical field of transformer cold zone systems, in particular to a cooling system of an oil immersed transformer.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and the main components are a primary coil, a secondary coil and an iron core (magnetic core), and the main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformers), etc., the transformers can be divided into: distribution transformers, power transformers, fully sealed transformers, combination transformers, dry transformers, oil immersed transformers, single-phase transformers, electric furnace transformers, rectifier transformers, reactors, anti-interference transformers, lightning protection transformers, box-type transformer test transformers, corner transformers, heavy current transformers, excitation transformers and the like.

The oil immersed transformer is through setting up cooling oil in the inside of casing, utilize the outside that the fin extends simultaneously, carry out auxiliary cooling, after the internal coil generates heat, at first the heat can be conducted to the inside of the cooling oil of box, utilize hydraulic oil to absorb the heat, the heat can be transmitted in the inside of cooling oil, after the heat conduction is to the border position that is close to the casing, the rethread fin carries out, this kind of passive radiating mode, radiating efficiency is slower, influence the security in the use, for this reason, we propose an oil immersed transformer's cooling system.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a cooling system of an oil immersed transformer, which solves the problems in the background art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the cooling system of the oil immersed transformer comprises a shell, wherein a conservator is arranged outside the shell and is positioned above the shell, the conservator and an inner cavity of the shell are mutually communicated, an oil pumping pipe is fixedly arranged above the shell, an oil delivery pipe is fixedly connected to the outer side of the oil pumping pipe, a return pipe is fixedly arranged at a position, close to the lower side, of the outer part of the shell, a connecting block is fixedly arranged above the return pipe and below the oil delivery pipe respectively, and a shunt pipe is fixedly arranged between the two connecting blocks; the inner cavity of the oil pumping pipe is movably sleeved with two sealing sheets, the inner part of the sealing sheet is fixedly sleeved with an inner movable column below the sealing sheet, and the inner side of the sealing sheet is fixedly sleeved with an outer movable sleeve above the sealing sheet.

Optionally, the top fixedly connected with driving motor of oil pumping pipe, the fixed cover in the position that the inner chamber of oil pumping pipe is close to the bottom is equipped with the supporting shoe, the top surface fixedly connected with supporting spring of supporting shoe, the top fixedly mounted of supporting spring has the connecting block, the bottom fixed connection of the top of connecting block and interior movable column, the top of interior movable column and the bottom of driving motor output shaft respectively fixed mounting have the extrusion piece.

Optionally, the diameter value of the shunt tube is smaller than the diameter values of the oil pumping tube, the oil feeding tube and the return tube, and the shunt tube is made of copper.

Optionally, the outer movable sleeve is movably sleeved outside the inner movable column, and the height value of the outer movable sleeve is smaller than that of the inner movable column.

Optionally, the extrusion piece is laminated each other, the fixed supporting shoe that is regarded as triangle-shaped in right side that is provided with of one side of extrusion piece.

Optionally, the connection position of the oil delivery pipe and the oil pumping pipe is located above the two sealing sheets, and the oil pumping pipe is communicated with the inner cavities of the oil delivery pipe and the shell.

The utility model provides a cooling system of an oil immersed transformer, which has the following beneficial effects:

1. this oil immersed transformer's cooling system through the top connection at the casing oil suction pipe, makes oil suction pipe's outside fixed connection send oil pipe, and the outside at the casing simultaneously is close to the position fixed mounting of bottom has the back flow, is sending and is installing two connecting blocks and a plurality of shunt tubes between oil pipe and the back flow pipe, and cooling oil is conducted to sending oil pipe through the oil suction pipe and is passed through the shunt tube downwards and flow back to the back flow pipe when the in-process of use, at the in-process through the shunt tube, the diameter value of shunt tube is less can be with heat conduction to external world fast, improves the efficiency of heat conduction, guarantees the security of use.

2. This cooling system of oil-immersed transformer, through the fixed suit supporting shoe in the position that is close to the bottom at the inner chamber of oil pumping pipe, make the top surface of supporting shoe pass through supporting spring and connect the connecting block, connect interior movable column in the top of connecting block, utilize the cooperation of the outside movable sleeve of movable sleeve in interior movable column outside, in the in-process of using, can be through the cooperation of the outside seal piece of interior movable column and outer movable sleeve, the in-process that rises, make two seal pieces cooperate and conduct the cold zone right side of oil pumping pipe inner chamber to the inner chamber that is close to oil delivery pipe of oil pumping pipe top, the cooperation of two squeeze pieces and driving motor, can control the lift of two seal pieces, conveniently realize the circulation of initiative control cooling oil.

Drawings

Fig. 1 is a schematic diagram of a cooling system of an oil immersed transformer according to the present utility model;

fig. 2 is a schematic diagram of a split structure of a cooling system of an oil immersed transformer according to the present utility model;

fig. 3 is a schematic view of the structure of a shunt of the present utility model;

FIG. 4 is a schematic diagram of the structure of the oil suction pipe of the present utility model;

FIG. 5 is a schematic diagram of a seal according to the present utility model.

In the figure: 1. a housing; 2. an oil pumping pipe; 3. oil delivery pipe; 4. a connecting block; 5. a shunt; 6. a return pipe; 7. a driving motor; 8. a support block; 9. a support spring; 10. a connecting block; 11. an inner movable column; 12. an outer movable sleeve; 13. sealing; 14. extruding the tablets.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 3, the present utility model provides the following technical solutions: the cooling system of the oil immersed transformer comprises a shell 1, wherein a conservator is arranged outside the shell 1 and is positioned above the shell 1, and the conservator is communicated with the inner cavity of the shell 1;

the upper part of the shell 1 is fixedly provided with an oil pumping pipe 2, the outer side of the oil pumping pipe 2 is fixedly connected with an oil delivery pipe 3, the position, close to the lower side, of the outer part of the shell 1 is fixedly provided with a return pipe 6, insulating oil can be circulated by utilizing the cooperation of the oil pumping pipe 2, the oil delivery pipe 3 and the return pipe 6 in the use process, the insulating oil can flow back to the inner part of the shell 1 after circulating for one circle from the outer part of the shell 1, the cooling efficiency can be effectively improved by cooling a cooling area in the shunt pipe 5, the upper part of the return pipe 6 and the lower part of the oil delivery pipe 3 are respectively fixedly provided with a connecting block 4, the shunt pipe 5 is fixedly arranged between the two connecting blocks 4, the arrangement of the shunt pipe 5 can effectively improve the heat dissipation efficiency, and the inner hydraulic oil in the oil delivery pipe 3 falls down to the inner cavity of the shunt pipe 5 and is divided into a plurality of strands at the same time, so that the cooling efficiency can be effectively improved, the arrangement of the return pipe 6 plays a role in return, the diameter value of the shunt pipe 5 is smaller than that of the oil pumping pipe 2, the oil delivery pipe 3 and the return pipe 6, the shunt pipe 5 is made of copper, the arrangement of the shunt pipe 5 can effectively dissipate heat and improve heat dissipation efficiency, the arrangement of the shunt pipe 5 can quickly and effectively dissipate heat after high-temperature insulating oil in the oil delivery pipe 3 enters the inner cavity of the shunt pipe 5, the inner cavity of the oil pumping pipe 2 is movably sleeved with two sealing sheets 13, the inner part of the lower sealing sheet 13 is fixedly sleeved with an inner movable column 11, the inner side of the upper sealing sheet 13 is fixedly sleeved with an outer movable sleeve 12, the two sealing sheets 13 are arranged in the use process, the two sealing sheets 13 are separated in the descending process through the cooperation of the inner movable column 11 and the outer movable sleeve 12, and part of insulating oil can be conveyed upwards to the inner cavity of the oil delivery pipe 3 in the lifting process, the motion of the insulating oil is guided, the outer movable sleeve 12 is movably sleeved outside the inner movable column 11, the height value of the outer movable sleeve 12 is smaller than that of the inner movable column 11, the inner movable column 11 can drive the outer movable sleeve 12 to move in the motion process, but delay time exists, the motion range of the outer movable sleeve 12 is smaller than that of the inner movable column 11, and the two sealing sheets 13 can be attached or detached conveniently.

Referring to fig. 4 to 5, the present utility model provides the following technical solutions: the top end of the oil suction pipe 2 is fixedly connected with a driving motor 7, the connection position of the oil delivery pipe 3 and the oil suction pipe 2 is positioned above two sealing sheets 13, the oil suction pipe 2 is mutually communicated with the inner cavities of the oil delivery pipe 3 and the shell 1, the oil suction pipe 2 and the oil delivery pipe 3 are mutually communicated with the inner cavities of the shunt pipe 5 and the return pipe 6, the circulation of insulating oil can be realized, the cooling efficiency of the insulating oil is further improved, the device is convenient to use, the two sealing sheets 13 are matched, the insulating oil can be delivered, the position, close to the bottom, of the inner cavity of the oil suction pipe 2 is fixedly sleeved with a supporting block 8, the top surface of the supporting block 8 is fixedly connected with a supporting spring 9, the supporting block 8 is provided, the function of supporting the supporting spring 9 is played, the supporting spring 9 can be upwards supported, the supporting spring 9 is upwards pushed to push a connecting block 10 to further push an inner movable column 11 and an outer movable sleeve 12 to upwards move, the two pressing sheets 14 are matched for controlling the reciprocating movement of the two sealing sheets 13, the top end of the supporting spring 9 is fixedly provided with a connecting block 10, the top end of the connecting block 10 is fixedly connected with the bottom end of the inner movable column 11, the top end of the inner movable column 11 and the bottom end of the output shaft of the driving motor 7 are respectively fixedly provided with a squeezing sheet 14, the upper squeezing sheet 14 is driven to rotate by the output shaft of the driving motor 7, in the rotating process of the upper squeezing sheet 14, when the convex position of the bottom of the upper squeezing sheet 14 rotates to the position above the convex position of the lower squeezing sheet 14, the convex positions of the two squeezing sheets 14 are mutually squeezed and push the lower squeezing sheet 14 to move downwards so as to facilitate pushing the sealing sheet 13 to move downwards, one surface of the squeezing sheet 14 is fixedly provided with a supporting block which is regarded as a triangle on the right side, the triangle block occupies half of the area of one surface of the squeezing sheet 14, meanwhile the squeezing sheet 14 is circular, in the rotation process of the extrusion piece 14, when two triangular blocks are vertically attached, the extrusion piece 14 is mutually separated, and when the two triangular blocks are horizontally attached, the two extrusion pieces 14 are relatively close.

In summary, when the cooling system of the oil immersed transformer is used, firstly, in the process of using the cooling system, after the shell 1 is installed and electrified, when the temperature of the insulating oil in the shell 1 is higher, the driving motor 7 is controlled to be started, the upper extrusion piece 14 is driven to rotate by the output shaft of the driving motor 7, when the convex position at the bottom of the upper extrusion piece 14 rotates to be above the convex position of the lower extrusion piece 14 in the rotating process of the upper extrusion piece 14, the convex positions of the two extrusion pieces 14 are mutually extruded, the lower extrusion piece 14 is pushed to move downwards, so that the inner movable column 11 is pushed to move downwards firstly in the downward moving process of the extrusion piece 14, the lower sealing piece 13 is driven to move downwards by the inner movable column 11, the positions of the separated parts of the two sealing pieces 13 are moved for a certain distance, and then the lower sealing piece 13 is moved, the inner movable column 11 drives the outer movable sleeve 12 to synchronously move downwards, so that the upper sealing piece 13 and the lower sealing piece 13 synchronously move downwards, the inner movable column 11 pushes the connecting block 10 to downwards move, the inner movable column 11 presses the supporting spring 9, the supporting spring 9 is in a compressed state, meanwhile, the inner movable column 11 and the sealing piece 13 downwards move for a certain distance, then in the continuous rotation process of the upper extrusion piece 14, the protruding positions and the blank positions of the two extrusion pieces 14 are mutually matched, the supporting spring 9 pushes the connecting block 10 to upwards move, the connecting block 10 pushes the inner movable column 11 to upwards move, the two sealing pieces 13 are further driven to upwards move, insulating oil of a pushing part is pushed to the inner cavity of the oil feeding pipe 3 by utilizing the two sealing pieces 13 to circulate to push the insulating oil, the insulating oil falls to the inner cavity of the connecting block 4 after the insulating oil enters the oil feeding pipe 3, through the inside of the connecting block 4 whereabouts shunt tubes 5 of top, the temperature of high temperature insulating oil can accomplish the heat dissipation fast through shunt tubes 5 in the in-process of flowing through shunt tubes 5, can to the inner chamber of casing 1 through back flow 6 circulation afterwards.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an oil immersed transformer's cooling system, includes casing (1), the outside of casing (1) sets up the conservator, the conservator is located the top position of casing (1), the inner chamber intercommunication each other of conservator and casing (1), its characterized in that:

an oil pumping pipe (2) is fixedly arranged above the shell (1), an oil delivering pipe (3) is fixedly connected to the outer side of the oil pumping pipe (2), a return pipe (6) is fixedly arranged at a position, close to the lower side, of the outer part of the shell (1), connecting blocks (4) are respectively and fixedly arranged above the return pipe (6) and below the oil delivering pipe (3), and a shunt pipe (5) is fixedly arranged between the two connecting blocks (4);

the inner cavity of the oil pumping pipe (2) is movably sleeved with two sealing sheets (13), the inner part of the sealing sheet (13) is fixedly sleeved with an inner movable column (11), and the inner side of the sealing sheet (13) is fixedly sleeved with an outer movable sleeve (12).

2. The cooling system of an oil immersed transformer according to claim 1, wherein: the oil pumping pipe is characterized in that a driving motor (7) is fixedly connected to the top end of the oil pumping pipe (2), a supporting block (8) is fixedly sleeved at a position, close to the bottom, of an inner cavity of the oil pumping pipe (2), a supporting spring (9) is fixedly connected to the top surface of the supporting block (8), a connecting block (10) is fixedly mounted at the top end of the supporting spring (9), the top end of the connecting block (10) is fixedly connected with the bottom end of an inner movable column (11), and a squeezing sheet (14) is fixedly mounted at the top end of the inner movable column (11) and the bottom end of an output shaft of the driving motor (7) respectively.

3. The cooling system of an oil immersed transformer according to claim 1, wherein: the diameter value of the shunt tube (5) is smaller than that of the oil pumping tube (2), the oil feeding tube (3) and the return tube (6), and the shunt tube (5) is made of copper.

4. The cooling system of an oil immersed transformer according to claim 1, wherein: the outer movable sleeve (12) is movably sleeved outside the inner movable column (11), and the height value of the outer movable sleeve (12) is smaller than that of the inner movable column (11).

5. The cooling system of an oil immersed transformer according to claim 2, wherein: the two extrusion pieces (14) are mutually attached, and a right triangular supporting block is fixedly arranged on one surface of each extrusion piece (14).

6. The cooling system of an oil immersed transformer according to claim 2, wherein: the connecting position of the oil delivery pipe (3) and the oil pumping pipe (2) is positioned above the two sealing sheets (13), and the oil pumping pipe (2) is communicated with the inner cavities of the oil delivery pipe (3) and the shell (1).