Oil storage structure of oil-immersed transformer

Abstract

The utility model relates to the technical field of oil storage structures, in particular to an oil storage structure of an oil-immersed transformer, which comprises a transformer outer protection body, a fixing column is fixedly connected to one side of an inner cavity of the transformer outer protection body, and a filter screen is arranged in an inner cavity of the fixing column. The self-cleaning oil tank has the advantages of filtering injected oil and self-cleaning a filtering structure, and ensures that the oil entering the oil tank is always kept clean through the cooperative use of the fixed column, the filter screen, the linkage telescopic rod, the connecting rod, the moving rod, the fixed block, the rack, the fixed frame, the supporting table, the motor, the rotating rod and the gear; therefore, pollutants are prevented from affecting the heat exchange and insulation performance of oil, the service life of the transformer is effectively prolonged, the safety in the using process is improved, the filter screen can be automatically cleaned, when impurities are gradually accumulated on the inner side and the outer side of the filter screen, the formed pressure difference is gradually increased along with time until the preset threshold value is reached, and the service life of the transformer is prolonged. At the moment, the backwashing process is automatically started.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil storage structure technical field, concretely is a kind of oil-immersed transformer oil storage structure. BACKGROUND

[0002] Oil-immersed transformer relies on oil as cooling and insulating medium, the heat generated in the core and winding part of transformer is absorbed by oil, the flow of oil carries away heat, and the heat is released to the outside through the heat dissipation system, at the same time, oil also has good electrical insulation performance, effectively prevents the short circuit between the winding inside the transformer and the external environment or external conductor, and the oil volume in the oil-immersed transformer will expand and shrink with the change of temperature, in the traditional oil-immersed transformer, the transformer oil will be contaminated by moisture, gas, metal particles and other impurities after long-term use, therefore, it is necessary to filter the transformer oil regularly to maintain the cleanliness of oil and prevent the influence of impurities on the internal insulation system and cooling system of transformer.

[0003] As disclosed in the oil-immersed transformer with publication number CN211319900U, the transformer body is provided with an oil tank on one side, specifically, a flow slowing pipe with a pipe body is arranged in the oil tank, which can make the oil flow slowly during oil filling to prevent the oil from overflowing due to excessive speed of oil pouring and oil bubbling, and a filter chamber is arranged, when the oil flow on the flow slowing pipe flows to the filter chamber, the filter screen in the filter chamber filters the impurities in the oil to prevent the oil containing impurities from causing the equipment inside the body to run smoothly after entering the body, and when it is necessary to clean the filter screen in the filter chamber, the bolt can be unscrewed to separate the bolt from the threaded hole and the second threaded hole, and the fixing plate can be pulled out from the mounting hole, so that the filter screen in the filter chamber can be cleaned through the mounting hole to prevent the filter screen from being blocked.

[0004] After filtering the transformer oil, the filter screen is usually pulled out from the inside of the transformer for cleaning, however, during this process, the pulling out of the filter screen can cause the impurities, dust and other particulate matters in the external air to enter the inside of the transformer, thereby causing the secondary pollution of transformer oil, which not only reduces the overall filtering efficiency, but also affects the quality of oil in the inside of the transformer, and further adversely affects the insulation performance and operation stability of the transformer. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an oil-immersed transformer oil storage structure, which has the advantages of filtering the injected oil and self-cleaning of the filtering structure, and solves the problem of pulling out the filter screen from the inside of the transformer for cleaning.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: An oil-immersed transformer oil storage structure, including transformer outer protection body, one side of the inner chamber of the transformer outer protection body is fixedly connected with fixed column, the inner chamber of the fixed column is provided with filter screen, the surface of the filter screen and the fixed column are provided with gap, the surface of both ends of the filter screen is fixedly connected with the inner wall of the fixed column, and a plurality of through holes are formed in the upper end of the filter screen, the central axis of the inner chamber of the filter screen is slidably connected with linkage telescopic rod, the surface of the linkage telescopic rod is fixedly connected with suction device, and the inner wall of the filter screen is contacted, both ends of the linkage telescopic rod are respectively penetrated to the inner chamber of the fixed column from both ends of the filter screen, the surface of the lower end of the linkage telescopic rod is fixedly connected with a plurality of connecting rods, and the other end of a plurality of connecting rods is fixedly connected with moving rod, the inner wall of the lower end of the fixed column is fixedly connected with fixed block, and the surface of the moving rod is slidably connected on the surface of the fixed block, the surface of one end of the moving rod is fixedly connected with rack, one side of the fixed block is fixedly connected with fixed frame, the surface of the fixed frame is fixedly connected with support table, the top of the support table is fixedly connected with motor, the output end of the motor is fixedly connected with rotating rod, the other end of the rotating rod is rotatably connected on the inner wall of the fixed frame, the surface of the rotating rod is fixedly connected with gear, and the gear is meshed with the rack.

[0007] Further, as a preferred embodiment of the utility model, the surface of the fixed column is fixedly connected with an oil outlet pipe, and the oil outlet pipe is arranged in the inner chamber of the transformer outer protection body. The surface of the lower end of the fixed column is fixedly connected with an impurity discharge pipe. One side of the outer wall of the transformer outer protection body is fixedly connected with an impurity storage body, and the other end of the impurity discharge pipe penetrates the surface of the transformer outer protection body to the inner chamber of the impurity storage body.

[0008] Further, as a preferred embodiment of the utility model, the top of the transformer outer protection body is provided with an oil inlet pipe.

[0009] Further, as a preferred embodiment of the utility model, the other side of the top of the transformer outer protection body is fixedly connected with two support plates, and the top of the two support plates is fixedly connected with an oil pillow.

[0010] Further, as a preferred embodiment of the utility model, the surface of both sides of the transformer outer protection body is fixedly connected with a cooling fin.

[0011] The beneficial effects, the technical scheme of the present application has the following technical effects: the utility model has the advantages of filtering the injected oil and self-cleaning of the filtering structure, through the cooperation of the fixed column, filter screen, linkage telescopic rod, connecting rod, moving rod, fixed block, rack, fixed frame, support table, motor, rotating rod and gear, ensures that the oil entering the oil tank is always clean, thereby avoiding the influence of pollutants on the heat exchange and insulation performance of the oil, effectively prolonging the service life of the transformer, in addition, the safety during use is increased, and automatic cleaning of the filter screen can be realized, when impurities gradually accumulate on the inside and outside of the filter screen, the pressure difference formed will gradually increase over time until the preset threshold value is reached, at which time the backwashing process is automatically started, the filter screen is backflushed through the internal device, the accumulated impurities are removed, and the filtering performance is restored, this self-cleaning function not only improves the filtering efficiency, but also reduces the need for manual maintenance, reduces the equipment failure rate, and provides protection for long-term stable operation.

[0012] It should be understood that all combinations of the aforementioned concepts and additional concepts described in greater detail below can be seen as part of the utility model subject matter of the present disclosure, as long as such concepts are not mutually contradictory. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings are included to provide a further understanding of the present utility model, and constitute a part of the specification, together with the embodiments of the present utility model, for explaining the present utility model, and do not constitute a limitation on the present utility model. In the drawings:

[0014] Figure 1 It is a structural schematic diagram of the present utility model;

[0015] Figure 2 It is a device sectional view of the present utility model;

[0016] Figure 3 It is an external structure distribution schematic diagram of the filtering structure of the present utility model;

[0017] Figure 4 It is a filtering structure sectional view of the present utility model;

[0018] Figure 5 It is an internal detailed structure sectional view of the present utility model.

[0019] In the drawings, the meanings of various reference signs are as follows: 1, transformer outer protection body; 2, fixed column; 3, filter screen; 4, linkage telescopic rod; 401, suction device; 5, connecting rod; 6, moving rod; 7, fixed block; 8, rack; 9, fixed frame; 10, support table; 11, motor; 12, rotating rod; 13, gear; 14, oil outlet pipe; 15, impurity discharge pipe; 16, impurity storage body; 17, oil inlet pipe; 18, support plate; 19, oil pillow; 20, heat sink. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. In order to understand the technical contents of the utility model more, specific embodiments are shown as follows with the accompanying drawings. The aspects of the utility model are described in the disclosure with reference to the drawings, and many embodiments are shown in the drawings. It should be understood that the various concepts and embodiments introduced above, and those concepts and embodiments described in more detail below can be implemented in any one of many ways. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] As shown in the accompanying drawings Figure 1 to the accompanying drawings Figure 5 As shown in the accompanying drawings: the embodiment provides an oil-immersed transformer oil storage structure, the outer protection body 1 of transformer is fixedly connected with the fixed column 2 on one side of the inner cavity of the outer protection body 1 of transformer, the inner cavity of fixed column 2 is provided with filter screen 3, the surface of filter screen 3 and fixed column 2 are provided with gap, the surface of both ends of filter screen 3 and the inner wall of fixed column 2 are fixedly connected, and the upper end of filter screen 3 is provided with a plurality of through holes, the inner cavity of filter screen 3 is slidably connected with the linkage telescopic rod 4, the surface of linkage telescopic rod 4 is fixedly connected with the suction device 401, and the suction device 401 is in contact with the inner wall of filter screen 3, the both ends of linkage telescopic rod 4 respectively penetrate the both ends of filter screen 3 to the inner cavity of fixed column 2, the surface of the lower end of linkage telescopic rod 4 is fixedly connected with a plurality of connecting rods 5, the other end of a plurality of connecting rods 5 is fixedly connected with moving rod 6, the inner wall of the lower end of fixed column 2 is fixedly connected with fixed block 7, and the surface of moving rod 6 penetrates and is slidably connected to the surface of fixed block 7, the surface of one end of moving rod 6 is fixedly connected with rack 8, one side of fixed block 7 is fixedly connected with fixed frame 9, the surface of fixed frame 9 is fixedly connected with support table 10, the top of support table 10 is fixedly connected with motor 11, the output end of motor 11 is fixedly connected with rotating rod 12, the other end of rotating rod 12 is rotatably connected to the inner wall of fixed frame 9, the surface of rotating rod 12 is fixedly connected with gear 13, and gear 13 and rack 8 are engaged with each other.

[0022] Specifically, the surface of fixed column 2 is fixedly connected with oil outlet pipe 14, and the oil outlet pipe 14 is arranged in the inner cavity of the outer protection body 1 of transformer, the surface of the lower end of fixed column 2 is fixedly connected with impurity discharge pipe 15, the outer wall of one side of the outer protection body 1 of transformer is fixedly connected with impurity storage body 16, and the other end of impurity discharge pipe 15 penetrates the surface of the outer protection body 1 of transformer to the inner cavity of impurity storage body 16.

[0023] In the embodiment, the oil outlet pipe 14 is arranged to safely inject the filtered oil into the inner cavity of the transformer outer protection body 1, ensure the cleanliness of the oil, avoid the negative effects of pollutants on the heat exchange and insulation performance of the oil, thereby effectively prolonging the service life of the transformer. At the same time, the impurity discharge pipe 15 cooperates with the impurity storage body 16 to timely discharge the impurities in the oil to the inner cavity of the impurity storage body 16. When the impurity discharge is completed, the impurity storage body 16 can be disassembled for unified treatment, effectively avoiding the influence of impurities on the operation performance of the transformer.

[0024] Specifically, the oil inlet pipe 17 is arranged at the top of the transformer outer protection body 1.

[0025] In the embodiment, the oil inlet pipe 17 is arranged to safely inject the oil into the inner cavity of the transformer outer protection body 1, ensuring the stability of the oil level inside the transformer. During the operation of the transformer, the oil not only serves the insulation function, but also plays the functions of cooling and heat exchange.

[0026] Specifically, the two support plates 18 are fixedly connected to the other side of the top of the transformer outer protection body 1, and the oil pillow 19 is fixedly connected to the top of the two support plates 18.

[0027] In the embodiment, the support plate 18 cooperates with the oil pillow 19 to ensure the stability of the oil pillow 19 and prevent the oil pillow 19 from tilting or deforming due to gravity or other external forces, thereby ensuring normal operation. The oil pillow 19 stores transformer oil and provides a volume change space for the oil circulation of the transformer, ensuring the normal flow and cooling of the oil in the transformer.

[0028] Specifically, the heat dissipation fins 20 are fixedly connected to the surfaces of the two sides of the transformer outer protection body 1.

[0029] In the embodiment, the heat dissipation fins 20 are arranged to effectively enhance the heat dissipation capacity of the transformer, help reduce the temperature inside the transformer outer protection body 1, improve the heat dissipation efficiency, and ensure that the transformer can maintain good thermal balance during long-term operation.

[0030] The working principle and use process of the utility model: the user first places the transformer outer protection body 1 in the appropriate position, and then pours the oil into the inner cavity of the transformer outer protection body 1 through the oil inlet pipe 17, the oil inlet pipe 17 is arranged through the surface of the transformer outer protection body 1, the oil flows into the inner cavity of the fixed column 2 through the oil inlet pipe 17, and then falls into the inner cavity of the filter screen 3 through the through hole at the top of the filter screen 3; in this process, the oil begins to diffuse outward, the filter screen 3 effectively filters the impurities in the oil, and the filtered oil is re-injected into the inner cavity of the transformer outer protection body 1 under the action of gravity through the oil outlet pipe 14 connected between the fixed column 2 and the lower end of the filter screen 3; at this time, some impurities are left on the surface of the filter screen 3, in order to clean the filter screen, the motor 11 is started, the output end of the motor 11 is fixedly connected with the rotating rod 12, the rotating rod 12 is driven to rotate on the surface of the fixed frame 9, the gear 13 on the rotating rod 12 starts to rotate, the gear 13 is engaged with the rack 8, thereby driving the rack 8 to move up and down in the inner cavity of the lower end of the fixed column 2, the top of the rack 8 is fixedly connected with the moving rod 6, the moving rod 6 is fixedly connected with the linkage telescopic rod 4 through a plurality of connecting rods 5 at the top, the linkage telescopic rod 4 moves up and down in the inner cavity of the filter screen 3, the linkage telescopic rod 4 is provided with a suction device 401 on the surface, with the accumulation of impurities on the filter screen, a pressure difference is formed on both sides of the filter screen, when the pressure difference reaches a certain value, the backwashing process is started, the suction device 401 starts to suck the impurities, and the impurities are brought into the inner cavity of the linkage telescopic rod 4, and then fall to the surface of the fixed block 7, and the surface of the fixed block 7 is designed to be inclined, so that the impurities are discharged through the impurity discharge pipe 15 and enter the inner cavity of the impurity storage body 16, the user can disassemble the impurity storage body 16 to uniformly treat the impurities, in addition, the oil pillow 19 is arranged on one side of the top of the transformer outer protection body 1, mainly used for storing transformer oil and providing a volume change space for the circulation of the oil, to ensure the normal flow and cooling of the oil in the transformer, in order to prevent the transformer from being damaged due to high temperature, the surface of the transformer outer protection body 1 is further provided with the cooling fin 20, which mainly helps to dissipate heat and keep the stable operation of the transformer.

[0031] It should be noted that, in this text, relational terms such as first and second and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying any actual such relationship or order between or among the entities or actions.

[0032] Although the utility model has disclosed as above with preferred embodiments, it is not used to limit the utility model. Those skilled in the art without departing from the spirit and scope of the utility model can make various modifications and decorations. Therefore, the protection scope of the utility model is defined by the claims.

Claims

1. An oil-immersed transformer oil storage structure comprising a transformer outer protection body (1), characterized in that: The inner cavity of the transformer outer protection body (1) is fixedly connected with a fixed column (2), the inner cavity of the fixed column (2) is provided with a filter screen (3), the surface of the filter screen (3) is provided with a gap with the fixed column (2), the surfaces of the two ends of the filter screen (3) are fixedly connected with the inner wall of the fixed column (2), and the upper end of the filter screen (3) is provided with a plurality of through holes, the inner cavity of the filter screen (3) is slidably connected with a linkage telescopic rod (4), the surface of the linkage telescopic rod (4) is fixedly connected with a suction device (401), and the suction device (401) is in contact with the inner wall of the filter screen (3), the two ends of the linkage telescopic rod (4) penetrate the two ends of the filter screen (3) to the inner cavity of the fixed column (2), the surface of the lower end of the linkage telescopic rod (4) is fixedly connected with a plurality of connecting rods (5), the other ends of the plurality of connecting rods (5) are fixedly connected with a moving rod (6), the inner wall of the lower end of the fixed column (2) is fixedly connected with a fixed block (7), and the surface of the moving rod (6) penetrates and is slidably connected to the surface of the fixed block (7), the surface of one end of the moving rod (6) is fixedly connected with a rack (8), one side of the fixed block (7) is fixedly connected with a fixed frame (9), the surface of the fixed frame (9) is fixedly connected with a support table (10), the top of the support table (10) is fixedly connected with a motor (11), the output end of the motor (11) is fixedly connected with a rotating rod (12), the other end of the rotating rod (12) is rotatably connected to the inner wall of the fixed frame (9), the surface of the rotating rod (12) is fixedly connected with a gear (13), and the gear (13) is meshed with the rack (8).

2. The oil-immersed transformer oil storage structure according to claim 1, characterized in that: The surface of the fixed column (2) is fixedly connected with an oil outlet pipe (14), and the oil outlet pipe (14) is arranged in the inner cavity of the transformer outer protection body (1), the surface of the lower end of the fixed column (2) is fixedly connected with an impurity discharge pipe (15), and the outer wall of one side of the transformer outer protection body (1) is fixedly connected with an impurity storage body (16), and the other end of the impurity discharge pipe (15) penetrates the surface of the transformer outer protection body (1) to the inner cavity of the impurity storage body (16).

3. The oil-immersed transformer oil storage structure according to claim 1, characterized in that: The top of the transformer outer protection body (1) is provided with an oil inlet pipe (17).

4. The oil-immersed transformer oil storage structure according to claim 1, characterized in that: The other side of the top of the transformer outer protection body (1) is fixedly connected with two support plates (18), and the top of the two support plates (18) is fixedly connected with an oil pillow (19).

5. The oil-immersed transformer oil storage structure according to claim 1, characterized in that: The surfaces of the two sides of the transformer outer protection body (1) are fixedly connected with heat dissipation fins (20).

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