CN219246493U - Oil immersed transformer - Google Patents

Abstract

The utility model relates to electric equipment, in particular to an oil immersed transformer, which comprises a transformer main body and a water cooling radiator, wherein the water cooling radiator comprises a shell, a liquid conveying coil pipe and a cleaning assembly are arranged in the shell, the liquid conveying coil pipe is connected with the inside of the transformer main body and used for conveying liquid, the liquid conveying coil pipe comprises a plurality of groups of straight pipe parts and bent pipe parts, the plurality of groups of straight pipe parts and bent pipe parts are connected to form a communicated liquid conveying pipeline, the cleaning assembly comprises a plurality of groups of cleaning rings and a driving plate, the plurality of groups of cleaning rings are connected to the outer side of the liquid conveying coil pipe in a sliding mode and are connected with the driving plate in a rotating mode, the driving plate is driven by the driving assembly in the shell to linearly move, the plurality of groups of cleaning rings are driven to scrape and clean the surface of the liquid conveying coil pipe, and the problem that when the liquid conveying pipe in the water cooling radiator is used for a long time at present, a layer of scale is adhered to the outer side of the liquid conveying pipe in the water cooling radiator, and therefore heat dissipation efficiency is affected.

Description

Oil immersed transformer

Technical Field

The utility model relates to power equipment, in particular to an oil immersed transformer.

Background

The oil immersed transformer uses oil as the main insulating means of the transformer and depends on the oil as cooling medium, such as oil immersed self-cooling, oil immersed air cooling, oil immersed water cooling, forced oil circulation and the like. The main components of the transformer are iron core, winding, oil tank, conservator, breather, explosion-proof pipe (pressure relief valve), radiator, insulating sleeve, tapping switch, gas relay, thermometer, oil purifier, etc.

The oil immersed transformer can operate according to the nameplate under the specified cooling condition, but the top layer oil temperature is not more than 90 ℃ at the highest, so that the top layer oil temperature is generally not more than 85 ℃ frequently in order to prevent the transformer from insulating aging, the alarm fixed value is set at 80 ℃, and the oil temperature is required to be kept all the time in the use process of the oil immersed transformer.

In the prior art, a water-cooled radiator is used for radiating oil in an oil immersed transformer, the oil radiates along an oil delivery pipe in the water-cooled radiator, the infusion pipe is in contact with cooling water in the water-cooled radiator, and when the oil delivery pipe is used for a long time, a layer of scale is adhered to the outer side of the oil delivery pipe, so that the radiating efficiency is affected.

Disclosure of Invention

The utility model aims to provide an oil immersed transformer, which is used for solving the problem that when a water-cooled radiator is used for radiating oil in the oil immersed transformer at present, a layer of scale is often attached to the outside of a liquid conveying pipe in the water-cooled radiator when the liquid conveying pipe is used for a long time, so that the radiating efficiency is affected.

In order to achieve the above purpose, the utility model provides an oil immersed transformer, which comprises a transformer main body and a water cooling radiator, wherein the water cooling radiator is arranged on the outer side of the transformer main body, and comprises a shell, cooling water is stored in the shell, an infusion coil and a cleaning assembly are arranged in the shell, the infusion coil is connected with the inside of the transformer main body and used for delivering oil, the infusion coil comprises a plurality of groups of straight pipe parts and bent pipe parts, the straight pipe parts are arranged in parallel and are sequentially connected through the bent pipe parts, the bent pipe parts are of semicircular structures, the straight pipe parts and the bent pipe parts are connected to form a communicated infusion pipeline, the cleaning assembly is used for cleaning the infusion coil and comprises a plurality of groups of cleaning rings and a driving plate, the cleaning rings are connected to the outer side of the infusion coil in a sliding mode and are connected with the driving plate in a rotating mode, and the driving plate is driven by the driving assembly in the shell to linearly move along the length direction of the straight pipe parts.

As a further scheme of the utility model, the first pump is arranged on the infusion coil, and the first pump is used for driving the oil to be conveyed along the infusion coil.

As a further scheme of the utility model, a connecting column is fixed on the outer side of the cleaning ring, the connecting column is rotationally connected to a corresponding sliding block on the driving plate, and the sliding block slides along the length direction of the driving plate.

As a further scheme of the utility model, a hard cleaning brush is arranged inside the cleaning ring.

As a further scheme of the utility model, the shell is internally provided with the fixed column, and the driving plate is in sliding connection with the fixed column.

As a further scheme of the utility model, the driving assembly comprises a driving screw rod and a first power motor, wherein the first power motor is arranged outside the shell, the driving screw rod is rotatably connected inside the shell and forms a spiral pair transmission with the driving plate, and once the driving screw rod extends out of the shell, the driving screw rod is in transmission connection with the first power motor.

As a further scheme of the utility model, the shell is connected with the second pump through a water pipe, and a filter is arranged on the water pipe.

Compared with the prior art, the cleaning assembly is designed, the cleaning ring in the cleaning assembly is used for cleaning the outer side of the infusion coil, and the cleaning ring is rotationally connected with the sliding block on the driving plate through the connecting column, so that the situation that the cleaning ring is blocked when excessively sliding between the straight pipe part and the bent pipe part is avoided, and the problem that when the water-cooling radiator is used for radiating oil in the oil-immersed transformer at present, a layer of scale is adhered to the outer side of the infusion tube in the water-cooling radiator when the infusion tube is used for a long time, so that the radiating efficiency is influenced is solved.

Drawings

Fig. 1 is a schematic structural diagram of an oil immersed transformer provided by the utility model.

Fig. 2 is a top view of a cleaning assembly provided by the present utility model.

Fig. 3 is a schematic installation view of a sliding block provided by the present utility model.

In the accompanying drawings: 1. a transformer body; 2. a housing; 3. an infusion coil; 4. a driving plate; 5. cleaning the ring; 6. driving a screw rod; 7. a first power motor; 8. fixing the column; 9. a first pump; 10. a filter; 11. a second pump; 12. a connecting column; 13. an internally threaded tube; 14. a sliding block.

Detailed Description

The technical scheme of the utility model is further described in detail below with reference to the specific embodiments.

As shown in fig. 1, in the embodiment of the utility model, an oil immersed transformer comprises a transformer main body 1 and a water cooling radiator, wherein the water cooling radiator is arranged on the outer side of the transformer main body 1 and comprises a shell 2, cooling water is stored in the shell, an infusion coil 3 and a cleaning assembly are arranged in the shell 2, the infusion coil 3 is connected with the inner part of the transformer main body 1 and used for delivering oil liquid, the oil immersed transformer comprises a plurality of groups of straight pipe parts and a plurality of groups of bent pipe parts, the straight pipe parts are arranged in parallel and are sequentially connected through the bent pipe parts, the bent pipe parts are of a semicircular structure, a plurality of groups of straight pipe parts and the bent pipe parts are connected to form a communicated infusion pipeline, the cleaning assembly is used for cleaning the infusion coil 3 and comprises a plurality of groups of cleaning rings 5 and a driving plate 4, the cleaning rings 5 are connected to the outer side of the infusion coil 3 in a sliding manner and are rotationally connected with the driving plate 4, and the driving plate 4 is driven by the driving assembly in the shell 2 to linearly move along the length direction of the straight pipe parts;

in the utility model, the driving assembly drives the driving plate 4 to linearly move to drive the plurality of groups of cleaning rings 5 to slide along the surface of the infusion coil pipe 3, and when the cleaning rings 5 excessively slide between the straight pipe part and the bent pipe part, the cleaning rings 5 correspondingly perform adaptive rotation.

As shown in fig. 1, in the embodiment of the present utility model, the first pump 9 is installed on the infusion coil 3, and the first pump 9 is used for driving the oil to be conveyed along the infusion coil 3, in the present utility model, the first pump 9 is installed at the front part of the infusion coil 3, and in practice, the first pump 9 may also be installed at the rear part of the infusion coil 3, which is not required by the installation position of the first pump 9.

As shown in fig. 2 and fig. 3, in the embodiment of the present utility model, a connecting post 12 is fixed on the outer side of the cleaning ring 5, the connecting post 12 is rotatably connected to a corresponding sliding block 14 on the driving plate 4, the sliding block 14 slides along the length direction of the driving plate 4, specifically, when the cleaning ring 5 excessively slides between the straight pipe portion and the bent pipe portion, the cleaning ring 5 correspondingly performs adaptive rotation and performs displacement along the length direction of the driving plate 4, and by setting the connecting post 12 and the sliding block 14, the condition that the cleaning ring 5 is blocked when excessively slides between the straight pipe portion and the bent pipe portion is avoided.

In the embodiment of the present utility model, as shown in fig. 2, a hard cleaning brush is installed on the inner side of the cleaning ring 5, and the cleaning ring is scraped and cleaned by contacting the hard cleaning brush with the outer side of the infusion coil 3.

As shown in fig. 1, in the embodiment of the present utility model, the fixing column 8 is installed in the housing 2, the driving plate 4 is slidably connected with the fixing column 8, and the sliding of the driving plate 4 is limited and guided by slidably connecting the driving plate 4 with the fixing column 8.

As shown in fig. 1, in the embodiment of the present utility model, the driving assembly includes a driving screw 6 and a first power motor 7, the first power motor 7 is installed at the outer side of the housing 2, the driving screw 6 is rotatably connected inside the housing 2 and forms a spiral pair transmission with the driving plate 4, an internal threaded tube 13 connected with the driving screw 6 is fixedly disposed on the driving plate 4, once the driving screw 6 extends out of the housing 2 and is in transmission connection with the first power motor 7, the first screw is driven to rotate by the first power motor 7, and then the driving plate 4 is driven to lift.

In the embodiment of the present utility model, as shown in fig. 1, the inside of the housing 2 is connected to the second pump 11 through a water pipe, a filter 10 is installed on the water pipe, and the hung magazines are filtered by the filter 10.

By designing the cleaning assembly, the cleaning assembly cleans the outer side of the infusion coil 3 through the cleaning ring 5 in the cleaning assembly, and the cleaning ring 5 is rotationally connected with the sliding block 14 on the driving plate 4 through the connecting column 12, so that the situation that the cleaning ring 5 is blocked when excessively sliding between the straight pipe part and the bent pipe part is avoided, and the problem that when the water-cooling radiator is used for radiating oil in the oil-immersed transformer at present, a layer of scale is adhered to the outer side of the infusion tube in the water-cooling radiator when the infusion tube is used for a long time, so that the radiating efficiency is affected is solved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, 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 can be understood by those of ordinary skill in the art in a specific case.

While the preferred embodiments of the present utility model have been described in detail, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the knowledge of those skilled in the art.

Claims (7)

1. The utility model provides an oil-immersed transformer, its characterized in that, includes transformer main part and water-cooling radiator, water-cooling radiator installs in the outside of transformer main part, including the casing, it has cooling water to store therein, casing internally mounted has infusion coil pipe and clearance subassembly, infusion coil pipe and transformer main part internal connection for supply fluid to carry, including multiunit straight tube portion and return bend portion, multiunit straight tube portion parallel arrangement, and connect gradually through the return bend portion, the return bend portion is semi-circular structure, by multiunit straight tube portion and return bend portion connection, form the infusion pipeline of intercommunication, clearance subassembly is used for clearing up infusion coil pipe, including multiunit clearance ring and drive plate, multiunit clearance ring sliding connection is in the infusion coil pipe outside to rotate with the drive plate and be connected, the drive plate is driven by the drive assembly in the casing, along the length direction linear movement of straight tube portion.

2. The oil immersed transformer of claim 1, wherein the infusion coil is provided with a first pump for driving the oil to be conveyed along the infusion coil.

3. The oil immersed transformer according to claim 1, wherein a connecting column is fixed on the outer side of the cleaning ring, the connecting column is rotatably connected to a corresponding sliding block on the driving plate, and the sliding block slides along the length direction of the driving plate.

4. An oil immersed transformer according to claim 1, wherein a hard cleaning brush is mounted inside the cleaning ring.

5. The oil immersed transformer according to claim 1, wherein the housing is provided with a fixing column, and the driving plate is slidably connected with the fixing column.

6. The oil immersed transformer according to claim 1, wherein the driving assembly comprises a driving screw rod and a first power motor, the first power motor is installed outside the housing, the driving screw rod is rotatably connected inside the housing and forms a spiral pair transmission with the driving plate, and the driving screw rod is in transmission connection with the first power motor once extending out of the housing.

7. The oil immersed transformer according to claim 1, wherein the housing is connected to the second pump through a water pipe, and a filter is mounted on the water pipe.

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