Moisture absorber structure of oil-immersed power transformer

Abstract

The utility model relates to the technical field of transformers, in particular to an oil-immersed power transformer moisture absorber structure which comprises a transformer body and a connecting pipe, one side of the transformer body is fixedly connected with the connecting pipe, the lower end of the connecting pipe is fixedly connected with a first connecting disc, and the first connecting disc is fixedly connected with a mounting disc assembly through a connecting bolt. The inner side of the mounting disc assembly is rotatably connected with a glass tube assembly, the inner side of the mounting disc assembly is provided with a limiting and fixing assembly, the mounting disc assembly comprises a lower disc, the inner side of the lower disc is provided with a connecting and mounting opening, the inner side of the lower disc is provided with a double-column sealing opening, the bottom end of the lower disc is fixedly connected with a bottom cover, and the inner side of the lower disc is provided with a through hole; according to the device, the moisture absorbent in the glass cylinder can be replaced without disassembling the device, the operation is convenient and fast during replacement, the replacement time is shortened, the labor intensity is reduced, and meanwhile normal work of the transformer body is not delayed during replacement of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an oil-immersed power transformer moisture absorber structure. Background Art

[0002] The desiccant structure of an oil-immersed power transformer is a device used to keep the oil inside the transformer dry. It absorbs moisture in the oil to prevent the degradation of insulation performance and potential electrochemical corrosion caused by moisture. The desiccant structure of an oil-immersed power transformer is crucial to ensuring the safe operation of the transformer and maintaining its long-term stable performance.

[0003] The desiccant is usually installed on the top or side of the transformer to discharge oil vapor and replace the desiccant. When replacing the desiccant inside the desiccant, the bolts need to be removed, the desiccant needs to be poured out and re-added before installation, which will delay the normal operation of the transformer. Therefore, an oil-immersed power transformer desiccant structure is proposed to solve the above problem. Utility Model Content

[0004] The utility model aims to provide an oil-immersed power transformer desiccant structure to solve the problem that the desiccant is usually installed on the top or side of the transformer to discharge oil vapor and replace the desiccant. When replacing the desiccant inside the desiccant, it is necessary to remove the bolts, pour out the desiccant and add it again before installation, which delays the normal operation of the transformer.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An oil-immersed power transformer desiccant structure comprises a transformer body and a connecting pipe, wherein one side of the transformer body is fixedly connected with a connecting pipe, the lower end of the connecting pipe is fixedly connected with a first connecting plate, the first connecting plate is fixedly connected with a mounting plate assembly through a connecting bolt, a feeding port is provided on the inner side of the first connecting plate, a glass tube assembly is rotatably connected to the inner side of the mounting plate assembly, a limited position fixing assembly is installed on the inner side of the mounting plate assembly, the mounting plate assembly comprises a lower plate, a connecting and mounting port is provided on the inner side of the lower plate, a double-column seal is provided on the inner side of the lower plate, and the bottom end of the lower plate A bottom cover is fixedly connected, a through hole is opened on the inner side of the lower plate, a spring telescopic rod is fixedly connected to the bottom end of the lower plate, a connecting horizontal plate is fixedly connected to the bottom end of the spring telescopic rod, a rubber sealing plate is fixedly connected to the top of the connecting horizontal plate, a pull rod is fixedly connected to the bottom end of the connecting horizontal plate, the glass tube assembly includes a glass cylinder, rubber rings are fixedly connected to the upper and lower ends of the glass cylinder, an arc connecting block is fixedly connected to the outer side of the glass cylinder, a limiting shaft rod is fixedly connected to the inner side of the arc connecting block, a gear ring is fixedly connected to the outer side of the limiting shaft rod, and a rotating handle is fixedly connected to the lower end of the limiting shaft rod.

[0007] As a further optimization of the present invention, the first connecting disk has the same diameter as the lower disk, there are two feed openings, the feed openings are symmetrically opened at the front and rear ends of the first connecting disk, and the connecting pipe is connected to the inside of the feed opening at the rear end.

[0008] As further optimization content of the present invention, several threaded holes are opened on the inner sides of the first connecting plate and the mounting plate assembly, the number of the connecting bolts corresponds one to one with the number of the threaded holes of the first connecting plate, the top end of the glass tube is fitted with the bottom end of the first connecting plate through a rubber ring, and the bottom end of the glass tube is fitted with the top end of the mounting plate assembly through a rubber ring.

[0009] As further optimized content of the present invention, the connection and installation port is connected to the interior of the bottom cover, the connection and installation port is connected to the interior of the rear end glass tube, the center of the connection and installation port is on the same vertical line as the center of the connecting tube, and the center of the discharge port is on the same vertical line as the center of the double column seal.

[0010] As a further optimization of the present invention, the double-column seal is shaped as two cylindrical sections, the lower end of the rubber sealing plate is fitted with the inner side of the double-column seal, a slide groove is provided at the right end of the lower plate, and the slide groove of the lower plate is connected to the inside of the through hole.

[0011] As a further optimization of the present invention, the limiting fixing assembly includes an adjusting block, one side of the adjusting block is fixedly connected to a built-in column, one side of the built-in column is fixedly connected to a tooth plate, one side of the tooth plate is fixedly connected to a return spring, the outer side of the built-in column is in contact with the inner side of the lower plate, and the right end of the return spring is fixedly connected to the inner side of the lower plate.

[0012] As further optimized content of the present invention, the shape of the glass tube is a hollow cylinder, the number of the glass tubes is not less than two, the upper end of the limiting shaft is rotatably connected to the first connecting disk, the outer side of the limiting shaft rotates on the inner side of the through hole, the outer side of the gear ring is engaged with one side of the tooth plate, and the outer side of the tooth plate slides on the inner side of the slide groove of the lower disk.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, by providing the first connecting plate, the mounting plate assembly, the feed port, the glass tube assembly and the limit fixing assembly, the device can replace the desiccant inside the glass tube without disassembling the device, and the replacement operation is convenient, reducing the replacement time and labor intensity. At the same time, the device does not delay the normal operation of the transformer body during replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the connecting pipe of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the first connecting disk of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the glass tube assembly of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the mounting plate assembly of the utility model.

[0020] In the figure: 1. Transformer body; 2. Connecting pipe; 3. First connecting plate; 4. Connecting bolt;

[0021] 5. Mounting plate assembly; 51. Lower plate; 52. Connecting and mounting port; 53. Bottom cover; 54. Through hole; 55. Double-column sealing; 56. Spring telescopic rod; 57. Connecting horizontal plate; 58. Rubber sealing plate; 59. Pull rod;

[0022] 6. Feeding port;

[0023] 7. Glass tube assembly; 71. Glass tube; 72. Rubber ring; 73. Curved connecting block; 74. Limiting shaft rod; 75. Gear ring; 76. Turning handle;

[0024] 8. Limit fixing assembly; 81. Adjustment block; 82. Built-in column; 83. Tooth plate; 84. Return spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] See also Figure 1-5 , the utility model provides a technical solution:

[0028] A structure of an oil-immersed power transformer desiccant, comprising a transformer body 1 and a connecting pipe 2, wherein one side of the transformer body 1 is fixedly connected with the connecting pipe 2, the lower end of the connecting pipe 2 is fixedly connected with a first connecting plate 3, the first connecting plate 3 is fixedly connected with a mounting plate assembly 5 through a connecting bolt 4, a feeding port 6 is provided inside the first connecting plate 3, a glass tube assembly 7 is rotatably connected inside the mounting plate assembly 5, a limited position fixing assembly 8 is installed inside the mounting plate assembly 5, the mounting plate assembly 5 comprises a lower plate 51, a connecting and mounting port 52 is provided inside the lower plate 51, a double-column sealing port 55 is provided inside the lower plate 51, and a bottom cover 5 is fixedly connected to the bottom end of the lower plate 51 3. A through hole 54 is provided on the inner side of the lower plate 51. A spring telescopic rod 56 is fixedly connected to the bottom end of the lower plate 51. A connecting horizontal plate 57 is fixedly connected to the bottom end of the spring telescopic rod 56. A rubber sealing plate 58 is fixedly connected to the top of the connecting horizontal plate 57. A pull rod 59 is fixedly connected to the bottom end of the connecting horizontal plate 57. The glass tube assembly 7 includes a glass cylinder 71. A rubber ring 72 is fixedly connected to the upper and lower ends of the glass cylinder 71. An arc connecting block 73 is fixedly connected to the outer side of the glass cylinder 71. A limiting shaft rod 74 is fixedly connected to the inner side of the arc connecting block 73. A gear ring 75 is fixedly connected to the outer side of the limiting shaft rod 74. A rotating handle 76 is fixedly connected to the lower end of the limiting shaft rod 74.

[0029] As a further implementation of this solution, the first connecting plate 3 has the same diameter as the lower plate 51, and there are two feeding ports 6, which are symmetrically opened at the front and rear ends of the first connecting plate 3. The connecting tube 2 is connected to the inside of the feeding port 6 at the rear end, which is convenient for adding a desiccant to the inside of the front glass cylinder 71 and for fixing the connecting tube 2 to the transformer body 1.

[0030] As a further implementation of the present solution, a plurality of threaded holes are provided inside the first connection plate 3 and the mounting plate assembly 5, and the number of the connecting bolts 4 corresponds to the number of the threaded holes of the first connection plate 3. The top of the glass cylinder 71 is fitted with the bottom of the first connection plate 3 through a rubber ring 72, and the bottom of the glass cylinder 71 is fitted with the top of the mounting plate assembly 5 through a rubber ring 72, so as to seal the gas inside the glass cylinder 71 and prevent the outside air from entering the inside of the glass cylinder 71.

[0031] As a further implementation of this solution, the connection installation port 52 is communicated with the inside of the bottom cover 53, the connection installation port 52 is communicated with the inside of the rear end glass cylinder 71, the center of the connection installation port 52 is on the same vertical line as the center of the connection pipe 2, the center of the discharge port 6 is on the same vertical line as the center of the double-column seal 55, the double-column seal 55 is in the shape of two sections of cylinders, the lower end of the rubber sealing plate 58 is fitted with the inner side of the double-column seal 55, a chute is provided at the right end of the lower plate 51, and the chute of the lower plate 51 is communicated with the inside of the through hole 54, so that when the transformer body 1 is working, it is convenient to block the inside of the double-column seal 55, dehumidify the transformer body 1, and when the desiccant needs to be replaced, it is convenient to discharge the desiccant inside the glass cylinder 71;

[0032] As a further implementation of the present invention, the position limiting and fixing assembly 8 includes an adjusting block 81, one side of the adjusting block 81 is fixedly connected to a built-in column 82, one side of the built-in column 82 is fixedly connected to a tooth plate 83, one side of the tooth plate 83 is fixedly connected to a return spring 84, the outer side of the built-in column 82 is in contact with the inner side of the lower plate 51, and the right end of the return spring 84 is fixedly connected to the inner side of the lower plate 51, and under the action of the tooth plate 83 meshing with the outer side of the gear ring 75, the position limiting shaft rod 74 is limited;

[0033] As a further implementation scheme of the present scheme, the glass tube 71 is shaped like a hollow cylinder, the number of glass tubes 71 is not less than two, the upper end of the limiting shaft rod 74 is rotatably connected to the first connecting disk 3, the outer side of the limiting shaft rod 74 rotates on the inner side of the through hole 54, the outer side of the gear ring 75 is engaged with one side of the tooth plate 83, and the outer side of the tooth plate 83 slides on the inner side of the slide groove of the lower disk 51, thereby improving the convenience of operation when replacing the desiccant without delaying the normal operation of the transformer body 1.

[0034] Working process: when the device needs to replace the desiccant inside the glass cylinder 71 during use, pull the adjusting block 81, and the adjusting block 81 drives the tooth plate 83 to move through the built-in column 82. When the tooth plate 83 is away from the outer side of the gear ring 75, turn the turning handle 76, and the turning handle 76 drives the limiting shaft rod 74 to rotate. The limiting shaft rod 74 drives the glass cylinder 71 to rotate through the arc connecting block 73. The upper and lower ends of the glass cylinder 71 are fixed with rubber rings 72. Under the sealing effect of the rubber rings 72, external air can be prevented from entering the interior of the glass cylinder 71. When the two glass cylinders 71 are rotated 180 degrees respectively, the front and rear glass cylinders 71 are exchanged respectively. The front glass cylinder 71 is filled with desiccant before this. At this time, the connecting tube 2 is connected to the inside of the connecting installation port 52 through the glass cylinder 71. At this time, the moisture inside the transformer body 1 can be dehumidified again without delaying the normal operation of the transformer body 1. Pull the pull rod 59, and the pull rod 59 drives the rubber sealing plate 58 to move through the connecting cross plate 57. When the rubber sealing plate 58 and the connecting cross plate 57 are away from the inside of the double-column seal 55, the desiccant inside the front glass tube 71 flows out from the double-column seal 55. After the outflow is completed, release the pull rod 59. Under the elastic action of the spring telescopic rod 56, the rubber sealing plate 58 is sealed with the double-column seal 55 again, and the adjustment block 81 is sent for examination. Under the elastic force of the reset spring 84, the tooth plate 83 engages with the outer side of the gear ring 75 to limit the limit shaft rod 74, thereby improving the replacement efficiency. The connecting bolt 4 can be disassembled between the first connecting disk 3 and the mounting disk assembly 5, which is convenient for maintaining the glass tube 71.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil-immersed power transformer desiccant structure, comprising a transformer body (1) and a connecting pipe (2), characterized in that: A connecting tube (2) is fixedly connected to one side of the transformer body (1); a first connecting plate (3) is fixedly connected to the lower end of the connecting tube (2); the first connecting plate (3) is fixedly connected to a mounting plate assembly (5) via a connecting bolt (4); a feeding port (6) is provided on the inner side of the first connecting plate (3); a glass tube assembly (7) is rotatably connected to the inner side of the mounting plate assembly (5); and a limit fixing assembly (8) is installed on the inner side of the mounting plate assembly (5); The mounting plate assembly (5) comprises a lower plate (51), a connecting mounting opening (52) is provided on the inner side of the lower plate (51), a double-column sealing opening (55) is provided on the inner side of the lower plate (51), a bottom cover (53) is fixedly connected to the bottom end of the lower plate (51), a through hole (54) is provided on the inner side of the lower plate (51), a spring telescopic rod (56) is fixedly connected to the bottom end of the lower plate (51), a connecting transverse plate (57) is fixedly connected to the bottom end of the spring telescopic rod (56), and a rubber The sealing plate (58) is fixedly connected to a pull rod (59) at the bottom end of the connecting horizontal plate (57). The glass tube assembly (7) comprises a glass tube (71). The upper and lower ends of the glass tube (71) are fixedly connected to a rubber ring (72). The outer side of the glass tube (71) is fixedly connected to an arc connecting block (73). The inner side of the arc connecting block (73) is fixedly connected to a limiting shaft rod (74). The outer side of the limiting shaft rod (74) is fixedly connected to a gear ring (75). The lower end of the limiting shaft rod (74) is fixedly connected to a rotating handle (76).

2. The oil-immersed power transformer desiccant structure according to claim 1, characterized in that: The first connection disk (3) and the lower disk (51) have the same diameter, the number of the feed openings (6) is two, the feed openings (6) are symmetrically arranged at the front end and the rear end of the first connection disk (3), and the connection pipe (2) is connected to the inside of the feed opening (6) at the rear end.

3. The oil-immersed power transformer desiccant structure according to claim 1, characterized in that: A plurality of threaded holes are provided on the inner sides of the first connection plate (3) and the mounting plate assembly (5); the number of the connection bolts (4) corresponds to the number of the threaded holes of the first connection plate (3); the top end of the glass cylinder (71) is fitted with the bottom end of the first connection plate (3) via a rubber ring (72); and the bottom end of the glass cylinder (71) is fitted with the top end of the mounting plate assembly (5) via a rubber ring (72).

4. The oil-immersed power transformer desiccant structure according to claim 1, characterized in that: The connection installation opening (52) is in communication with the interior of the bottom cover (53), the connection installation opening (52) is in communication with the interior of the rear end glass cylinder (71), the center of the connection installation opening (52) and the center of the connection tube (2) are on the same vertical line, and the center of the discharge opening (6) and the center of the double-column sealing opening (55) are on the same vertical line.

5. The oil-immersed power transformer desiccant structure according to claim 1, characterized in that: The double-column seal (55) is in the shape of two cylindrical sections, the lower end of the rubber sealing plate (58) is in contact with the inner side of the double-column seal (55), the right end of the lower plate (51) is provided with a slide groove, and the slide groove of the lower plate (51) is connected to the inside of the through hole (54).

6. The oil-immersed power transformer desiccant structure according to claim 1, characterized in that: The position limiting and fixing assembly (8) comprises an adjusting block (81), one side of the adjusting block (81) is fixedly connected to a built-in column (82), one side of the built-in column (82) is fixedly connected to a tooth plate (83), one side of the tooth plate (83) is fixedly connected to a return spring (84), the outer side of the built-in column (82) is in contact with the inner side of the lower plate (51), and the right end of the return spring (84) is fixedly connected to the inner side of the lower plate (51).

7. The oil-immersed power transformer desiccant structure according to claim 1, characterized in that: The glass tube (71) is in the shape of a hollow cylinder, and the number of the glass tubes (71) is not less than two. The upper end of the limiting shaft rod (74) is rotatably connected to the first connecting plate (3), the outer side of the limiting shaft rod (74) rotates inside the through hole (54), the outer side of the gear ring (75) is meshed with one side of the tooth plate (83), and the outer side of the tooth plate (83) slides inside the slide groove of the lower plate (51).

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