Corrugated oil tank of oil immersed transformer

Abstract

The corrugated oil tank comprises a corrugated oil tank body, an oil conservator, supporting assemblies, a supporting plate, a ruler and a filtering assembly, the supporting plate is installed at the top of the corrugated oil tank body, the supporting assemblies are connected to the left side and the right side of the top of the supporting plate, and the left end and the right end of the oil conservator are placed at the tops of the supporting assemblies. An oil inlet pipe is arranged at the bottom of the oil conservator and penetrates through the top of the corrugated oil tank body, the right surface of the oil conservator is connected with a ruler, the bottom of the filtering assembly is connected with the left side of the top of a connecting plate, an oil pump is installed on the right side of the top of the connecting plate, and a timer and a converter are installed on the top of the oil pump; the bottom of the connecting plate is connected with a set of fixing rings, the fixing rings are connected with the top of the oil conservator, the design is suitable for market requirements, insulating oil in the corrugated oil tank body is pumped through the oil pump, and impurities in the insulating oil are filtered through a filter screen placed in the filter assembly.

Description

Technical Field

[0001] The utility model is a corrugated oil tank for an oil-immersed transformer, belonging to the technical field of oil-immersed transformers. Background Art

[0002] The oil-immersed transformer is a new type of high-performance transformer with a more reasonable structure and better performance. Its three-dimensional wound core has three core columns arranged in an equilateral triangle, with no air gap in the magnetic circuit, tighter winding, and the three magnetic circuits are of the same length and the shortest. The cross-sectional area of ​​the core column is closer to a circle, so the performance is further improved, the loss is reduced, the noise is reduced, the three items are balanced, and the third harmonic component is reduced. This product is more suitable for urban and rural, industrial and mining enterprise power grid transformation, and is more suitable for combined transformers and prefabricated substation transformers.

[0003] However, the existing corrugated oil tank of the oil-immersed transformer on the market is filled with insulating oil inside, and the iron core, winding, insulating components and other parts installed inside the corrugated oil tank body are heat-dissipating. However, the iron core, winding, insulating components and other parts installed inside the corrugated oil tank of the oil-immersed transformer will have impurities falling off the outside under the action of high voltage, and will be mixed in the insulating oil, thereby reducing the heat dissipation function of the insulating oil. Therefore, an oil-immersed transformer corrugated oil tank is urgently needed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a corrugated oil tank for an oil-immersed transformer to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure and good practicality. The insulating oil inside the corrugated oil tank is extracted by an oil pump, and the impurities inside the insulating oil are filtered through a filter net placed inside the filter assembly.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: a corrugated oil tank of an oil-immersed transformer, comprising a corrugated oil tank body, an oil pillow, a support assembly, a support plate, a scale and a filter assembly, a support plate is installed on the top of the corrugated oil tank body, and the left and right sides of the top of the support plate are connected with the support assembly, the left and right ends of the oil pillow are placed on the top of the support assembly, and the filter assembly is installed on the right side of the top of the oil pillow, an oil inlet pipe is provided at the bottom of the oil pillow, and the oil inlet pipe is passed through the top of the corrugated oil tank body, a scale is connected to the right surface of the oil pillow, the bottom of the filter assembly is connected to the left side of the top of the connecting plate, an oil pump is installed on the right side of the top of the connecting plate, and a timer and a converter are installed on the top of the oil pump, a group of fixing rings are connected to the bottom of the connecting plate, and the fixing ring is connected to the top of the oil pillow, an inlet one is provided on one side of the oil pumping head of the oil pump, and the inlet one is connected to the top of the oil pumping pipe, the bottom of the oil pumping pipe is installed at the bottom of the corrugated oil tank body, a filter net is placed inside the filter assembly, and the bottom of the filter assembly is connected to a connecting pipe.

[0006] Furthermore, a second inlet is provided on the top of the oil extraction head of the oil pump, and a rubber hose is sheathed on the outside of the second inlet so that one end of the rubber hose is inserted into the top of the sealing cover.

[0007] Furthermore, a group of grooves are provided on the left and right inner walls of the filter assembly, and blocks matching the grooves are provided on the left and right sides of the filter screen.

[0008] Furthermore, the converter is connected in series with the power wires led out from the oil pump and the timer, and another power wire of the converter is connected to the transformer.

[0009] Furthermore, a sealing ring is provided at the bottom of the connecting pipe, and the bottom of the connecting pipe passes through the top of the connecting plate and is connected to the top of the oil pillow.

[0010] Furthermore, a sealing gasket is placed at the bottom of the oil extraction pipe.

[0011] The beneficial effects of the utility model are as follows: the utility model uses the function of the oil extraction pipe connected to the inlet provided on one side of the oil extraction head of the oil pump on the right side of the top of the connecting plate to extract the insulating oil inside the corrugated oil tank when the oil pump is started. Therefore, the insulating oil will flow into the interior of the filter assembly under the action of the rubber hose, and the insulating oil will be purified and filtered through the filter net placed inside the filter group. The design extracts the insulating oil inside the corrugated oil tank through the oil pump, and filters the impurities inside the insulating oil through the filter net placed inside the filter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure of a corrugated oil tank of an oil-immersed transformer of the utility model;

[0014] Figure 2 This is an overall schematic diagram of a filter assembly in a corrugated oil tank of an oil-immersed transformer according to the utility model;

[0015] Figure 3 This is an overall schematic diagram of a filter screen in a corrugated oil tank of an oil-immersed transformer according to the utility model;

[0016] In the figure: 1-corrugated oil tank body, 2-oil pillow, 3-support assembly, 4-support plate, 5-ruler, 6-filter assembly, 601-fixing ring, 602-timer, 603-converter, 604-oil pump, 605-connecting plate, 606-sealing cover, 607-oil extraction pipe, 608-filter screen, 609-connecting pipe. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] See also Figure 1-Figure 3 The utility model provides a technical solution: a corrugated oil tank for an oil-immersed transformer, comprising a corrugated oil tank body 1, an oil pillow 2, a support assembly 3, a support plate 4, a scale 5 and a filter assembly 6. A support plate 4 is installed on the top of the corrugated oil tank body 1, and the left and right sides of the top of the support plate 4 are connected to the support assembly 3. The left and right ends of the oil pillow 2 are placed on the top of the support assembly 3, and a filter assembly 6 is installed on the right side of the top of the oil pillow 2. An oil inlet pipe is provided at the bottom of the oil pillow 2, and the oil inlet pipe passes through the top of the corrugated oil tank body 1. The right surface of the oil pillow 2 is connected to a scale 5. The bottom of the filter assembly 6 is connected to the connecting plate The left side of the top of 605 is connected, an oil pump 604 is installed on the right side of the top of the connecting plate 605, and a timer 602 and a converter 603 are installed on the top of the oil pump 604, a group of fixing rings 601 are connected to the bottom of the connecting plate 605, and the fixing ring 601 is connected to the top of the oil pillow 2, an inlet 1 is provided on one side of the oil pumping head of the oil pump 604, and the inlet 1 is connected to the top of the oil suction pipe 607, the bottom of the oil suction pipe 607 is installed at the bottom of the corrugated oil tank body 1, and a filter net 608 is placed inside the filter assembly 6, and the bottom of the filter assembly 6 is connected to a connecting pipe 609.

[0019] As the first embodiment of the utility model: the top of the oil pump 604 is provided with an inlet 2, and the outside of the inlet 2 is covered with a rubber hose so that one end thereof is inserted into the top of the sealing cover 606. This design enables the oil pump 604 to extract the insulating oil inside the corrugated oil tank 1 into the interior of the filter assembly 6 through the action of the oil extraction pipe 607. A group of grooves are provided on the left and right walls inside the filter assembly 6. Blocks matching the grooves are provided on the left and right sides of the filter screen 608. This design facilitates taking out the filter screen 608 for cleaning. The converter 603, the oil pump 604 and the timing The power wires led out from the converter 602 are connected in series, and another power wire of the converter 603 is connected to the transformer. This design reduces the voltage transmitted from the transformer to the oil pump 604 through the action of the converter 603, and the oil pump 604 extracts the insulating oil within the specified time through the action of the timer 602. There must be a sealing ring at the bottom of the connecting pipe 609, and the bottom of the connecting pipe 609 passes through the top of the support plate 605 to be connected to the top of the oil pillow 2. A sealing gasket is placed at the bottom of the oil extraction pipe 607. This design prevents leakage when extracting the insulating oil.

[0020] As a second embodiment of the utility model: first, the iron core, winding, insulating components and other parts are installed inside the corrugated oil tank body 1, and after the installation is completed, the insulating oil is filled inside the corrugated oil tank body 1. After the filling is completed, the top of the corrugated oil tank body 1 is closed, so that the oil pillow 2 will be fixed to the top of the corrugated oil tank body 1 under the action of the support assembly 4 and the support plate 4, and a group of fixing rings 601 connected to the bottom of the connecting plate 605 are connected to the top right side of the oil pillow 2 to prevent the connecting plate 605 from being separated from the top of the oil pillow 2. Through the action of the oil extraction pipe 607 connected to the inlet one on one side of the oil extraction head of the oil pump 604 on the right side of the top of the connecting plate 605, the insulating oil inside the corrugated oil tank body 1 is extracted when the oil pump 604 is started. Therefore, the insulating oil will flow into the interior of the filter assembly 6 under the action of the rubber hose, and the insulating oil will be purified and filtered through the filter net 608 placed inside the filter assembly 6. The purified and filtered insulating oil will be discharged into the interior of the oil pillow 2 through the connecting pipe 609. Because the insulating oil inside the corrugated oil tank body 1 is less than the specified oil pressure under the action of the oil pillow 2, the oil pillow 2 will refuel the interior of the corrugated oil tank body 1. Through the action of the converter 603 and the timer 602, the oil 604 can be extracted within the set time. This design uses the oil pump 604 to extract the insulating oil inside the corrugated oil tank body 1, and then filters the impurities inside the insulating oil through the filter net 607 placed in the filter assembly 6.

[0021] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0022] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A corrugated oil tank for an oil-immersed transformer, comprising a corrugated oil tank body (1), an oil pillow (2), a support assembly (3), a support plate (4), a scale (5) and a filter assembly (6), characterized in that: A support plate (4) is installed on the top of the corrugated oil tank body (1), and support components (3) are connected to the left and right sides of the top of the support plate (4), the left and right ends of the oil pillow (2) are placed on the top of the support component (3), and a filter component (6) is installed on the right side of the top of the oil pillow (2), an oil inlet pipe is provided at the bottom of the oil pillow (2), and the oil inlet pipe is passed through the top of the corrugated oil tank body (1), and a ruler (5) is connected to the right surface of the oil pillow; The filter assembly (6) comprises a fixing ring (601), a timer (602), a converter (603), an oil pump (604), a connecting plate (605), a sealing cover (606), an oil extraction pipe (607), a filter screen (608) and a connecting pipe (609). The bottom of the filter assembly (6) is connected to the left side of the top of the connecting plate (605), the oil pump (604) is installed on the right side of the top of the connecting plate (605), and the timer (602) and the converter are installed on the top of the oil pump (604). The connecting plate (605) is provided with a set of fixing rings (601) at the bottom, and the fixing rings (601) are connected to the top of the oil pillow (2). An inlet 1 is provided on one side of the oil pump head of the oil pump (604), and the inlet 1 is connected to the top of an oil pumping pipe (607). The bottom of the oil pumping pipe (607) is installed at the bottom of the corrugated oil tank body (1). A filter screen (608) is placed inside the filter assembly (6), and the bottom of the filter assembly (6) is connected to a connecting pipe (609).

2. The oil-immersed transformer corrugated oil tank according to claim 1, characterized in that: A second inlet is provided at the top of the oil pump head of the oil pump (604), and a rubber hose is sheathed on the outside of the second inlet so that one end of the rubber hose is inserted into the top of the sealing cover (606).

3. The oil-immersed transformer corrugated oil tank according to claim 1, characterized in that: The inner left and right walls of the filter assembly (6) are provided with a group of grooves, and the left and right sides of the filter screen (608) are provided with blocks matching the grooves.

4. The oil-immersed transformer corrugated oil tank according to claim 1, characterized in that: The converter (603) is connected in series with a power supply wire led out of the oil pump (604) and the timer (602), and another power supply wire of the converter (603) is connected to the transformer.

5. The oil-immersed transformer corrugated oil tank according to claim 1, characterized in that: The bottom of the connecting pipe (609) must be provided with a sealing ring, and the bottom of the connecting pipe (609) passes through the top of the connecting plate (605) and is connected to the top of the oil pillow (2).

6. The oil-immersed transformer corrugated oil tank according to claim 1, characterized in that: A sealing gasket is placed at the bottom of the oil extraction pipe (607).

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