Oil tank of oil-immersed transformer

Abstract

The utility model relates to the field of oil tanks, and discloses an oil-immersed transformer oil tank which comprises a tank body, a sealing assembly is arranged on the top of the tank body, a supporting ring is fixedly connected to the upper portion of the outer wall of the tank body, a fixing frame is arranged on the upper portion of the sealing assembly, and the sealing assembly comprises a sealing cover. A sealing part is movably connected to the lower portion of the sealing cover and comprises a clamping ring, a sealing ring is fixedly connected to the middle of the inner wall of the clamping ring, a plurality of clamping pads are fixedly connected to the inner wall and the outer wall of the front portion and the rear portion of the clamping ring, a connecting ring is fixedly connected to the top of the clamping ring, and a fixing ring is fixedly connected to the top of the connecting ring. According to the sealing device, the sealing assembly is matched with the supporting ring, the fixing frame, the bolt and the hollow rod, so that the sealing structure of the sealing device is simpler, the production cost can be reduced, meanwhile, the sealing structure is firmer and more durable, the sealing effect is better, and the sealing device is more practical.

Description

Technical Field

[0001] The utility model relates to the field of oil tanks, in particular to an oil-immersed transformer oil tank. Background Art

[0002] The oil-immersed transformer tank is the part of the transformer used to store insulating oil. The tank is usually made of metal material and can hold enough insulating oil to cool and insulate the internal components of the transformer. The tank also helps to stabilize the temperature of the transformer and prevent overheating damage.

[0003] After searching, Chinese patent announcement number: CN217640861U discloses a highly sealed oil-immersed transformer, including an oil tank, four sides of the oil tank are provided with heat sinks, the bottom of the oil tank is provided with two mounting feet, the top of the oil tank is provided with a top cover, the top cover is connected to the oil tank through four sealing components and four snap-on components, the four sealing components and the four snap-on components are all distributed in a rectangular shape, an oil level gauge, a plurality of high-voltage terminals and a plurality of low-voltage terminals are installed on the top cover, the oil level gauge, the plurality of high-voltage terminals and the plurality of low-voltage terminals are all connected to the inside of the oil tank, the sealing component includes a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are both vertically arranged at the bottom of the top cover, and a first sealing pad is arranged at the bottom of the top cover. The oil-immersed transformer sealing component prevents rainwater from penetrating into the oil tank body from the edge of the top cover, thereby affecting the normal operation of the transformer, and the installation of the top cover is facilitated by the snap-on component.

[0004] Although the above device can prevent rainwater from seeping into the oil tank from the edge of the top cover by setting a sealing component, the production cost of the device is relatively high because its connecting plate requires multiple springs to push it. In addition, since its springs are set at an angle, the connecting plate moves. The force generated when the springs are squeezed will cause the middle part of the spring to bend upward or downward, which can easily cause damage to the spring and affect the service life of the sealing component. Therefore, it is not practical enough. Therefore, an oil-immersed transformer tank is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an oil-immersed transformer oil tank, which aims to improve the problem in the prior art that a large number of springs are needed to fix the second vertical plate of the sealing assembly, resulting in high production costs, and the springs are easily bent when the connecting plate moves, causing damage and affecting the service life of the device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an oil-immersed transformer oil tank, comprising a box body, a sealing assembly is arranged on the top of the box body, a support ring is fixedly connected to the upper part of the outer wall of the box body, a fixing frame is arranged on the upper part of the sealing assembly, and the sealing assembly includes a sealing cover.

[0007] As a further description of the above technical solution:

[0008] The lower part of the sealing cover is movably connected with a sealing member.

[0009] As a further description of the above technical solution:

[0010] The sealing member comprises a clamping ring, a sealing ring is fixedly connected to the middle of the inner wall of the clamping ring, a plurality of clamping pads are fixedly connected to the inner and outer walls of the front and rear parts of the clamping ring, a connecting ring is fixedly connected to the top of the clamping ring, and a fixing ring is fixedly connected to the top of the connecting ring.

[0011] As a further description of the above technical solution:

[0012] A cavity is arranged in the middle of the fixing ring.

[0013] As a further description of the above technical solution:

[0014] The bottom of the sealing cover is provided with an annular groove, and the clamping ring is movably connected to it. The front and rear sides of the front and rear inner walls of the annular groove are provided with a plurality of clamping grooves, and the clamping pad is movably connected to it. The top of the annular groove is provided with a connecting groove, and the connecting ring is movably connected to it. The top of the connecting groove is provided with a fixing groove, and the fixing ring is movably connected to it.

[0015] As a further description of the above technical solution:

[0016] A sealing groove is provided on the top surface of the box body, and the sealing ring is movably connected with the sealing groove.

[0017] As a further description of the above technical solution:

[0018] Empty rods are fixedly connected to the left and right sides of the front and rear parts of the top of the support ring, and the empty rods penetrate the upper part of the fixed frame and are movably connected thereto.

[0019] As a further description of the above technical solution:

[0020] Bolts are arranged on the left and right sides of the front and rear parts of the top of the fixing frame, and the bolts are threadedly connected with the hollow rods.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the sealing structure of the device is simpler through the cooperation between the sealing component and the support ring, the fixing frame, the bolts and the hollow rod, which can reduce the production cost, and make the sealing structure stronger and more durable, and the sealing effect is better and more practical.

[0023] 2. In the utility model, by setting the mutual cooperation between the sealing cover and the sealing member, the disassembly, assembly and replacement of the sealing member are more convenient, the aged sealing member can be quickly replaced, the sealing performance of the device can be effectively guaranteed, and it is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an oil-immersed transformer oil tank proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the split three-dimensional structure of an oil tank of an oil-immersed transformer proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the upper part of the oil tank of an oil-immersed transformer proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of the disassembled three-dimensional structure of a sealing component of an oil-immersed transformer tank proposed by the utility model;

[0028] Figure 5 The utility model is a partial cross-sectional three-dimensional structural schematic diagram of an oil tank of an oil-immersed transformer.

[0029] Legend:

[0030] 1. Box body; 2. Sealing assembly; 3. Support ring; 4. Fixed frame; 21. Sealing cover; 22. Sealing member; 221. Snap ring; 222. Clamping pad; 223. Connecting ring; 224. Fixed ring; 225. Sealing ring; 211. Ring groove; 212. Clamping groove; 213. Connecting groove; 214. Fixed groove; 11. Sealing groove; 31. Empty rod; 41. Bolt. DETAILED DESCRIPTION

[0031] 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.

[0032] Reference Figure 1 - Figure 2 The utility model provides an embodiment: an oil-immersed transformer oil tank, including a box body 1, which is used to connect various components. A sealing assembly 2 is arranged on the top of the box body 1 for sealing the oil tank. A supporting ring 3 is fixedly connected to the upper part of the outer wall of the box body 1 for supporting a fixing frame 4. The fixing frame 4 is placed on the upper part thereof. A fixing frame 4 is arranged on the upper part of the sealing assembly 2 for cooperating with the fixing of the sealing assembly 2.

[0033] like Figure 4 As shown, the sealing assembly 2 includes a sealing cover 21 for covering the top of the box body 1, and a sealing member 22 is movably connected to the lower part of the sealing cover 21, which is made of rubber and is used for sealing.

[0034] See also Figure 4 - Figure 5 The seal 22 includes a snap ring 221 for connecting various components, which can be sleeved on the top of the box body 1. A sealing ring 225 is fixedly connected to the middle of the inner wall of the snap ring 221 for connecting with the sealing groove 11 to seal the oil tank. The front and rear inner and outer walls of the snap ring 221 are fixedly connected with a plurality of clamping pads 222 for increasing the firmness of the connection between the seal 22 and the sealing cover 21. A connecting ring 223 is fixedly connected to the top of the snap ring 221 for cooperating with the connection of the fixing ring 224. A fixing ring 224 is fixedly connected to the top of the connecting ring 223 for fixing the seal 22 and the sealing cover 21. A cavity is provided in the middle of the fixing ring 224 so that the fixing ring 224 can be deformed.

[0035] Furthermore, a ring groove 211 is provided at the bottom of the sealing cover 21 for cooperating with the connection of a snap ring 221, and the snap ring 221 is movably connected thereto. A plurality of snap grooves 212 are provided on the front and rear sides of the front and rear inner walls of the ring groove 211 for cooperating with the connection of a snap pad 222, and the snap pad 222 is movably connected thereto. A connecting groove 213 is provided at the top of the ring groove 211, and the lower part thereof is slightly wider than the upper part to facilitate the installation of a fixing ring 224, and the connecting ring 223 is movably connected thereto. A fixing groove 214 is provided at the top of the connecting groove 213 for cooperating with the connection of a fixing ring 224, and the fixing ring 224 is movably connected thereto.

[0036] like Figure 2 - Figure 3 As shown, a sealing groove 11 is provided on the top surface of the box body 1 for cooperating with the connection of the sealing ring 225, and the sealing ring 225 is movably connected thereto. Empty rods 31 are fixedly connected to the left and right sides of the front and rear parts of the top of the support ring 3 for limiting the fixed frame 4. The empty rods 31 penetrate the upper part of the fixed frame 4 and are movably connected thereto. Bolts 41 are provided on the left and right sides of the front and rear parts of the top of the fixed frame 4 for fixing the fixed frame 4 and the support ring 3. The bolts 41 are threadedly connected to the empty rods 31.

[0037] Working principle: When in use, cover the sealing cover 21 on the upper part of the box body 1, so that the sealing ring 225 is inserted into the sealing groove 11. At this time, the retaining ring 221 will be sleeved on the top of the box body 1, so that the sealing assembly 2 will seal the box body 1, and then install the fixed frame 4 on the upper part of the sealing cover 21, so that the empty rod 31 passes through the hole on the fixed frame 4 to limit the fixed frame 4. The fixed frame 4 will be placed on the upper part of the support ring 3, and then the bolt 41 will be twisted into the empty rod 31. When the bolt 41 and the empty rod 31 are fully tightened, the bolt 41 will press the fixed frame 4 against the support ring 3, and the fixed frame 4 will cover the side of the sealing assembly 2, and the installation of the device sealing structure can be completed.

[0038] When the seal 22 is aged and needs to be replaced, the aged seal 22 is separated from the sealing cover 21, and then the fixing ring 224 on the upper part of the new seal 22 is pushed into the fixing groove 214 through the connecting groove 213. When the fixing ring 224 is pressed into the connecting groove 213, it will be deformed due to the cavity provided in the fixing ring 224. After the fixing ring 224 enters the fixing groove 214, the fixing ring 224 will be restored and stuck with the fixing groove 214. At the same time, the connecting ring 223 will be stuck with the connecting groove 213, and the snap ring 221 will be stuck in the ring groove 211. At the same time, ensure that the snap pad 222 can be stuck in the snap groove 212, and the replacement of the seal 22 is completed.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil-immersed transformer oil tank, comprising a tank body (1), characterized in that: A sealing assembly (2) is arranged on the top of the box body (1), a support ring (3) is fixedly connected to the upper part of the outer wall of the box body (1), a fixing frame (4) is arranged on the upper part of the sealing assembly (2), and the sealing assembly (2) comprises a sealing cover (21).

2. The oil-immersed transformer tank according to claim 1, characterized in that: The lower part of the sealing cover (21) is movably connected with a sealing member (22).

3. The oil-immersed transformer tank according to claim 2, characterized in that: The sealing member (22) comprises a snap ring (221), a sealing ring (225) is fixedly connected to the middle of the inner wall of the snap ring (221), a plurality of snap pads (222) are fixedly connected to the front and rear inner and outer walls of the snap ring (221), a connecting ring (223) is fixedly connected to the top of the snap ring (221), and a fixing ring (224) is fixedly connected to the top of the connecting ring (223).

4. The oil-immersed transformer tank according to claim 3, characterized in that: A cavity is provided in the middle of the fixing ring (224).

5. The oil-immersed transformer tank according to claim 3, characterized in that: The bottom of the sealing cover (21) is provided with an annular groove (211), and the clamping ring (221) is movably connected thereto; the front and rear inner walls of the front and rear parts of the annular groove (211) are provided with a plurality of clamping grooves (212), and the clamping pad (222) is movably connected thereto; the top of the annular groove (211) is provided with a connecting groove (213), and the connecting ring (223) is movably connected thereto; the top of the connecting groove (213) is provided with a fixing groove (214), and the fixing ring (224) is movably connected thereto.

6. The oil-immersed transformer tank according to claim 3, characterized in that: The top surface of the box body (1) is provided with a sealing groove (11), and the sealing ring (225) is movably connected thereto.

7. The oil-immersed transformer tank according to claim 1, characterized in that: Empty rods (31) are fixedly connected to the left and right sides of the front and rear parts of the top of the support ring (3), and the empty rods (31) penetrate the upper part of the fixed frame (4) and are movably connected thereto.

8. The oil-immersed transformer tank according to claim 7, characterized in that: Bolts (41) are provided on the left and right sides of the front and rear parts of the top of the fixing frame (4), and the bolts (41) are threadedly connected to the hollow rod (31).

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