CN219696210U - High-performance box edge sealing structure for oil immersed transformer - Google Patents
High-performance box edge sealing structure for oil immersed transformer Download PDFInfo
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- CN219696210U CN219696210U CN202321025950.0U CN202321025950U CN219696210U CN 219696210 U CN219696210 U CN 219696210U CN 202321025950 U CN202321025950 U CN 202321025950U CN 219696210 U CN219696210 U CN 219696210U
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- round steel
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- box edge
- backboard
- edge
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- 238000007789 sealing Methods 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 105
- 239000010959 steel Substances 0.000 claims abstract description 105
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses a high-performance box edge sealing structure for an oil immersed transformer, which comprises a box wall, a box edge, a box cover and a waterproof cover plate; the box edge is sleeved on the periphery of the top of the side plate and welded and fixed; the box edge is spaced from the top of the side plate; the box cover is connected with the box edge in a sleeved mode; the box edge of the backboard is provided with inner round steel, middle round steel and outer round steel, and the rest three-surface box edge is provided with U-shaped middle round steel and outer round steel; studs are arranged on the box edges between the middle round steel and the outer round steel on one side of the backboard; a through hole is arranged on the box edge between the U-shaped middle round steel and the outer round steel; a sealing strip area is arranged between the inner round steel and the middle round steel and between the side plate and the U-shaped middle round steel; a waterproof cover plate is arranged above the junction of the backboard and the box edge. According to the utility model, the fall between the box edge and the top of the box wall is kept at 8mm, so that the round steel is not easy to fall into the box body, and the safety is improved; one side of the backboard is changed into a flat plate connecting structure, and the backboard is not required to be bent to form a drainage groove like a traditional mode, so that a processing program is saved, and the strength of the oil tank is improved.
Description
Technical Field
The utility model relates to the field of transformers, in particular to a high-performance box edge sealing structure for an oil immersed transformer.
Background
The oil tank of the immersed transformer is an important part of the transformer, transformer oil is filled in the oil tank, and the immersed transformer is an important power for the operation of the transformer; the oil immersed transformer oil tank is formed by connecting a tank body and a tank cover, then is connected through a flange type fastener, and is provided with a groove at the back for draining (as shown in figures 1-2); it has the following disadvantages:
1. the joint of the box edge and the backboard is used for draining water by adopting a bending process, so that the sheet metal processing is easy to deform, and the flatness of the box edge cannot be ensured; 2. the sealing strip is arranged on one side of the round steel and the stud, when the box cover is pressed, the rubber sealing strip is deformed and then contacts with the stud, so that insulation damage is caused, and the sealing life is influenced; 3. and a plurality of bolt holes are formed in the contact part of the back plate, so that leakage risk exists, and the tightness is required to be enhanced.
Disclosure of Invention
The utility model aims to provide a high-performance box edge sealing structure for an oil immersed transformer, which is leak-proof and high in strength.
The purpose of the utility model is realized in the following way: a high-performance box edge sealing structure for an oil immersed transformer comprises a box wall, a box edge, a box cover and a waterproof cover plate;
the box wall is a half-opening cavity body formed by three groups of side plates and a bottom plate;
the box edge is sleeved on the periphery of the top of the side plate and is welded and fixed; the outer wall of one side of the box edge, which is not contacted with the side plate, is welded and fixed with the back plate, and a space is reserved between the box edge and the top of the side plate; the box cover is connected with the box edge in a sleeved mode;
an inner round steel, a middle round steel and an outer round steel are arranged on the box edge close to the backboard, and a U-shaped middle round steel and an outer round steel are arranged on the rest three-face box edge; a stud is arranged on the box edge between the middle round steel and the outer round steel at one side of the backboard; a through hole is formed in the box edge between the U-shaped middle round steel and the outer round steel; a sealing strip area is arranged between the inner round steel and the middle round steel and between the side plate and the U-shaped middle round steel; and a waterproof cover plate is arranged above the junction of the backboard and the box edge.
Preferably, the length of the inner round steel is consistent with the length of the inner wall of the box; the two ends of the inner circular steel are in contact with the side plates of the box wall.
Preferably, the length of the middle round steel is consistent with the length of the outer wall of the box; the U-shaped middle round steel is bent integrally, and two ends of the U-shaped middle round steel are abutted against the middle round steel.
Preferably, the waterproof cover plate comprises a fixing part, an inclined part and a contact part; the fixing part is a U-shaped groove, the fixing part is matched with the top of the backboard and then fixed through a bolt, and the inclined part is not abutted against the stud; the lower side of the contact part is fixedly extruded with the top of the box cover.
Preferably, a rubber pad is arranged at the bottom side of the contact part.
Preferably, the periphery of the box cover is provided with fixing holes corresponding to the studs and the through holes, and a blocking strip is arranged at the inner side of the fixing hole close to one side of the back plate.
Preferably, the diameters of the inner round steel, the middle round steel, the outer round steel and the U-shaped middle round steel are kept consistent; the height of the box edge which is spaced from the top of the side plate is kept consistent with the diameter of the inner round steel.
Preferably, the surface of the box cover, which is contacted with the backboard, is a vertical plane; three surfaces which are not contacted with the backboard are bent downwards to form a waterproof edge.
Compared with the prior art, the utility model has the following advantages:
1. the fall of the box edge and the top of the box wall is kept to be 8mm, meanwhile, the two ends of the inner round steel are propped against the box wall, the risk that the round steel is welded and unstably falls into the box body is avoided, and the safety is improved;
2. one side of the backboard is changed into a flat plate connecting structure, and a drainage groove is not required to be formed by bending in a traditional mode, so that a processing program is saved, and the strength of the oil tank is improved;
3. a waterproof cover plate is arranged above the junction of the backboard and the box edge, and the change of the main body structure of the box body is avoided through an external drainage structure; not only improves the structural strength of the box body, but also ensures the tightness of the box body; meanwhile, the waterproof cover plate is fixedly connected through bolts, so that later disassembly is convenient, and adjustment can be performed according to an actual operation site;
4. the sealing rubber strip is limited by the inner round steel, the middle round steel, the side plates and the U-shaped middle round steel, so that the situation that after the sealing rubber strip is extruded and deformed, the stress at each position of the side plates and the round steel bodies at the two sides of the rubber strip is kept uniform is effectively ensured, the situation that the rubber strip and bolts are extruded under the traditional structure to cause uneven stress at a plurality of positions of the rubber strip is avoided, and the service life of the sealing rubber strip is prolonged; meanwhile, the supporting force of the plurality of groups of round steel to the box cover is greatly improved, and the stability is ensured.
5. The box edge close to the back plate is provided with the integrated stud, so that a connection mode of bolts and fixing holes is avoided, the connection position of the box edge and the back plate is free of the fixing holes, and the tightness is greatly improved;
6. three surfaces of the box cover, which are not contacted with the backboard, are bent to form a waterproof edge, so that drainage is facilitated, and rainwater is further prevented from being immersed.
Drawings
Fig. 1 is a schematic diagram of a prior art structure.
Fig. 2 is an enlarged view of the structure at a in fig. 1.
Fig. 3 is a schematic structural view of the present utility model.
Fig. 4 is an enlarged view of the structure at a in fig. 3.
Fig. 5 is a schematic structural view of the waterproof cover plate without the present utility model.
Fig. 6 is a schematic diagram of the structure without the cover of the present utility model.
Fig. 7 is an enlarged view of the structure at B in fig. 6.
Fig. 8 is a schematic bottom view of the present utility model.
Fig. 9 is an enlarged view of the structure at C in fig. 8.
The waterproof sealing device comprises a box wall 1, a side plate 101, a bottom plate 102, a box edge 2, a through hole 201, a box cover 3, a fixing hole 301, a blocking strip 302, a waterproof edge 303, a waterproof cover plate 4, a fixing part 401, an inclined part 402, a contact part 403, a back plate 5, a space 6, inner round steel 7, middle round steel 8, outer round steel 9, middle round steel 10U, a stud 11 and sealing strip 12.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
It should be noted that, in the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," "overhang," and the like do not denote that the component is required to be absolutely horizontal or overhang, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or communicating between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 3-9, a high-performance box edge sealing structure for an oil immersed transformer comprises a box wall 1, a box edge 2, a box cover 3 and a waterproof cover plate 4; the box wall 1 is a half-opening cavity formed by three groups of side plates 101 and a bottom plate 102; the box edge 2 is sleeved on the periphery of the top of the side plate and welded and fixed; the outer wall of the side, which is not contacted with the side plate 101, of the box edge 2 is welded and fixed with the back plate 5, and a space 6 is reserved between the box edge 2 and the top of the side plate 101; the box cover 3 is connected with the box edge 2 in a sleeved mode; the box edge of the backboard 5 is provided with an inner round steel 7, a middle round steel 8 and an outer round steel 9, and the rest three-surface box edge 2 is provided with a U-shaped middle round steel 10 and an outer round steel 9; the stud 11 is arranged on the box edge 2 between the middle round steel 8 and the outer round steel 9 on one side of the backboard 5, so that a connection mode of bolts and fixing holes is avoided, the connection part of the box edge and the backboard is free of fixing holes, and the tightness is greatly improved; a through hole 201 is arranged on the box edge between the U-shaped middle round steel 10 and the outer round steel 9; a sealing strip area 12 is arranged between the inner round steel 7 and the middle round steel 8 and between the side plate 101 and the U-shaped middle round steel 10; a waterproof cover plate 4 is arranged above the junction of the back plate 5 and the box rim 2.
As shown in fig. 6-7, the length of the inner round steel 7 is consistent with the length of the inner wall of the box rim 2; the inner round steel 7 is inconsistent with the side plate of the box wall 1 at both ends, and after the conflict, the risk that the round steel welding unstably falls into the box is avoided, and the safety is improved.
As shown in fig. 6-7, the length of the middle round steel 8 is consistent with the length of the outer wall of the box edge 2; the U-shaped middle round steel 10 is bent integrally, and two ends of the U-shaped middle round steel 10 are abutted against the middle round steel 8; after the sealing strip is pressed against the round steel, an annular sealing area is formed, the sealing strip can be effectively limited, and after the sealing strip is deformed by extrusion, the stress between each part and the round steel is more uniform, so that the service life of the sealing strip is prolonged.
As shown in fig. 3 to 4, the waterproof cover plate 4 includes a fixing portion 401, an inclined portion 402, and a contact portion 403; the fixing part 401 is a U-shaped groove, the U-shaped groove is convenient and quick to detach and fix and install, the fixing part 401 is matched with the top of the back plate 5 and then is fixed through bolts, the inclined part 402 does not collide with the stud 11, the stud can be effectively protected at a certain distance, and touch is avoided; the lower side of the contact part 403 is fixed with the top of the case cover 3 in a pressing way, and the seal between the contact part and the case cover is formed after the pressing; the waterproof cover plate can effectively prevent the rainwater above from flowing in from the junction of the backboard and the box edge after being covered integrally.
As shown in fig. 3 to 4, a rubber pad (not shown) is provided at the bottom side of the contact portion 403, and is used for protecting the cover main body.
As shown in fig. 5, the outer periphery of the case cover 3 is provided with a fixing hole 301 corresponding to the stud 11 and the through hole 103, and the inner side of the fixing hole 301 on one side of the backboard 5 is provided with a blocking strip 302, so that the sealing performance between the contact part and the case cover can be further ensured by the blocking strip, and water is prevented from flowing into the inside from the contact part.
As shown in fig. 6-7, the diameters of the inner round steel 7, the middle round steel 8, the outer round steel 9 and the U-shaped middle round steel 10 are kept consistent; the height of the interval between the box edge 2 and the top of the side plate 101 is kept consistent with the diameter of the inner round steel 7, and the round steel and the interval are kept consistent, so that the supporting force of the box cover can be improved, and the stability of the box cover is improved.
As shown in fig. 3, 5, 8 and 9, the surface of the cover 3 contacting the back plate 5 is a vertical plane; the three surfaces which are not contacted with the backboard 5 are downwards bent to form the waterproof edge 303, and the waterproof edge can reduce the leakage risk of the joint and improve the tightness.
The working principle of the utility model is explained as follows: the fall of the box edge and the top of the box wall is kept to be 8mm, meanwhile, the two ends of the inner round steel are propped against the box wall, the risk that the round steel is welded and unstably falls into the box body is avoided, and the safety is improved; one side of the backboard is changed into a flat plate connecting structure, and a drainage groove is not required to be formed by bending in a traditional mode, so that a processing program is saved, and the strength of the oil tank is improved; a waterproof cover plate is arranged above the junction of the backboard and the box edge, and the change of the main body structure of the box body is avoided through an external drainage structure; not only improves the structural strength of the box body, but also ensures the tightness of the box body; meanwhile, the waterproof cover plate is fixedly connected through bolts, so that later disassembly is convenient, and adjustment can be performed according to an actual operation site; the sealing rubber strip is limited by the inner round steel, the middle round steel, the side plates and the U-shaped middle round steel, so that the situation that after the sealing rubber strip is extruded and deformed, the stress at each position of the side plates and the round steel bodies at the two sides of the rubber strip is kept uniform is effectively ensured, the situation that the rubber strip and bolts are extruded under the traditional structure to cause uneven stress at a plurality of positions of the rubber strip is avoided, and the service life of the sealing rubber strip is prolonged; meanwhile, the supporting force of the plurality of groups of round steel to the box cover is greatly improved, and the stability is ensured.
The above examples are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the spirit and scope of the present utility model. Various modifications and improvements of the technical scheme of the present utility model will fall within the protection scope of the present utility model without departing from the design concept of the present utility model, and the technical content of the present utility model is fully described in the claims.
Claims (8)
1. The high-performance box edge sealing structure for the oil immersed transformer is characterized by comprising a box wall, a box edge, a box cover and a waterproof cover plate;
the box wall is a half-opening cavity body formed by three groups of side plates and a bottom plate;
the box edge is sleeved on the periphery of the top of the side plate and is welded and fixed; the outer wall of one side of the box edge, which is not contacted with the side plate, is welded and fixed with the back plate, and a space is reserved between the box edge and the top of the side plate; the box cover is connected with the box edge in a sleeved mode;
an inner round steel, a middle round steel and an outer round steel are arranged on the box edge close to the backboard, and a U-shaped middle round steel and an outer round steel are arranged on the rest three-face box edge; a stud is arranged on the box edge between the middle round steel and the outer round steel at one side of the backboard; a through hole is formed in the box edge between the U-shaped middle round steel and the outer round steel; a sealing strip area is arranged between the inner round steel and the middle round steel and between the side plate and the U-shaped middle round steel; and a waterproof cover plate is arranged above the junction of the backboard and the box edge.
2. The high-performance box edge sealing structure for an oil immersed transformer according to claim 1, wherein the length of the inner round steel is consistent with the length of the inner wall of the box edge; the two ends of the inner circular steel are in contact with the side plates of the box wall.
3. The high-performance box edge sealing structure for the oil-immersed transformer according to claim 1, wherein the length of the middle round steel is consistent with the length of the outer wall of the box edge; the U-shaped middle round steel is bent integrally, and two ends of the U-shaped middle round steel are abutted against the middle round steel.
4. The high-performance box edge sealing structure for an oil-immersed transformer according to claim 1, wherein the waterproof cover plate comprises a fixing part, an inclined part and a contact part; the fixing part is a U-shaped groove, the fixing part is matched with the top of the backboard and then fixed through a bolt, and the inclined part is not abutted against the stud; the lower side of the contact part is fixedly extruded with the top of the box cover.
5. The high-performance box edge sealing structure for an oil-immersed transformer according to claim 4, wherein a rubber pad is arranged at the bottom side of the contact portion.
6. The high-performance box edge sealing structure for the oil-immersed transformer according to claim 1, wherein fixing holes corresponding to the studs and the through holes are formed in the periphery of the box cover, and blocking strips are arranged on the inner side of the fixing holes on the side close to the back plate.
7. The high-performance box edge sealing structure for the oil immersed transformer according to claim 1, wherein the diameters of the inner round steel, the middle round steel, the outer round steel and the U-shaped middle round steel are kept consistent; the height of the box edge which is spaced from the top of the side plate is kept consistent with the diameter of the inner round steel.
8. The high-performance box edge sealing structure for an oil-immersed transformer according to claim 1, wherein a surface of the box cover, which is contacted with the back plate, is a vertical plane; three surfaces which are not contacted with the backboard are bent downwards to form a waterproof edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321025950.0U CN219696210U (en) | 2023-04-28 | 2023-04-28 | High-performance box edge sealing structure for oil immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321025950.0U CN219696210U (en) | 2023-04-28 | 2023-04-28 | High-performance box edge sealing structure for oil immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219696210U true CN219696210U (en) | 2023-09-15 |
Family
ID=87970429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321025950.0U Active CN219696210U (en) | 2023-04-28 | 2023-04-28 | High-performance box edge sealing structure for oil immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219696210U (en) |
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2023
- 2023-04-28 CN CN202321025950.0U patent/CN219696210U/en active Active
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