A sealing plugging structure at a flange of an electrical device

Abstract

The utility model discloses a kind of sealing plugging structure at electrical equipment flange, first flange outer side is provided with first boss, second flange outer side is provided with second boss, first boss's first annular groove and second boss's second annular groove are provided with first sealing ring;Annular plugging member includes ring body and fence, ring body is provided with fence periphery, ring body is clamped between first flange and second flange, the inside of ring body is provided with recess, recess is provided with second sealing ring, second sealing ring and first boss and second boss outer edge are closely connected, ring body both sides are closely connected with first flange and second flange respectively by third sealing ring and fourth sealing ring, the utility model structure is reasonable, first boss and second boss contact surface are sealed by first sealing ring and second sealing ring, ring body and two flanges between are sealed by third sealing ring and fourth sealing ring, greatly improve the connection sealing property between the two flanges of electrical equipment.

Description

Technical Field

[0001] This utility model relates to the field of flange connection technology for electrical equipment, specifically a sealing and plugging structure for the flange of electrical equipment. Background Technology

[0002] Electrical equipment requiring flange connections is mainly concentrated in situations where sealing, isolation, or connection of different media or structural components is necessary. Among these, transformer-type electrical equipment, such as connections between oil tanks and radiators, oil tanks and oil pumps, oil flow relays, oil tanks and bushings, oil conservators (oil tankers), various valves, and monitoring instruments, all require sealing and plugging of flange connections.

[0003] Existing electrical equipment flanges typically use rubber sealing rings for sealing. However, under high pressure, relying solely on rubber sealing rings still carries a significant risk of leakage. Therefore, an improved technology is urgently needed to address this problem in the existing technology. Summary of the Invention

[0004] The purpose of this utility model is to provide a sealing and plugging structure for the flange of electrical equipment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing and plugging structure for an electrical equipment flange, comprising a first flange, a second flange, and an annular plugging component. The first flange and the second flange are fastened together by bolts and nuts. A first boss is provided on the outer side of the first flange, and a second boss is provided on the outer side of the second flange. The first boss has a first annular groove, and the second boss has a second annular groove. The first boss and the second boss correspond to and cooperate with each other. A first sealing ring is provided in the first annular groove of the first boss and the second annular groove of the second boss. The annular sealing element includes a ring body and a surrounding plate. The surrounding plate is provided around the ring body, and the ring body is clamped between a first flange and a second flange. The surrounding plate wraps around the outer edges of the first flange and the second flange. A groove is provided on the inner side of the ring body, and a second sealing ring is provided in the groove. The second sealing ring is in close contact with the outer edges of the first boss and the second boss. A third annular groove and a fourth annular groove are provided on both sides of the ring body. A third sealing ring is provided in the third annular groove, and a fourth sealing ring is provided in the fourth annular groove. The third sealing ring is in close contact with the first flange, and the fourth sealing ring is in close contact with the second flange.

[0006] Preferably, in the sealing and plugging structure for the flange of an electrical equipment provided by this utility model, the outer edges of the first boss and the second boss are both inclined surfaces.

[0007] Preferably, the sealing and plugging structure for the flange of an electrical equipment provided by this utility model has chamfers on the inner sides of both ends of the enclosure.

[0008] Compared with the prior art, the beneficial effects of this utility model are: A first boss is provided on the outer side of the first flange, and a second boss is provided on the outer side of the second flange. A first sealing ring is provided in the first annular groove of the first boss and the second annular groove of the second boss. An annular body is provided between the first flange and the second flange. A second sealing ring is provided in the inner side of the annular body through a groove. A third sealing ring and a fourth sealing ring are provided on both sides of the annular body through a third annular groove and a fourth annular groove, respectively. The first sealing ring and the second sealing ring seal the contact surface of the first boss and the second boss. The third sealing ring seals the connection between the annular body and the first flange. The fourth sealing ring seals the connection between the annular body and the second flange. This greatly improves the sealing performance of the connection between the two flanges of the electrical equipment, reduces the probability of leakage under high pressure, and a surrounding plate is provided on the outside of the annular body to prevent misalignment of the two flanges and improve the connection stability between the two flanges. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 For the appendix Figure 1 Enlarged structural diagram of point A in the middle; Figure 3 This is a schematic diagram of the annular sealing component. Figure 4 For the appendix Figure 3 A schematic diagram of the right-side structure.

[0010] In the figure: First flange 1, Second flange 2, Bolt 3, Nut 4, First boss 5, Second boss 6, First annular groove 7, Second annular groove 8, First sealing ring 9, Ring body 10, Surrounding plate 11, Groove 12, Second sealing ring 13, Third annular groove 14, Fourth annular groove 15, Third sealing ring 16, Fourth sealing ring 17. Detailed Implementation

[0011] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0012] Please see Figure 1-4 This utility model provides a technical solution: a sealing and plugging structure for an electrical equipment flange, including a first flange 1, a second flange 2, and an annular plugging component. The first flange 1 and the second flange 2 are fastened together by bolts 3 and nuts 4. The outer side of the first flange 1 is provided with a first boss 5, and the outer side of the second flange 2 is provided with a second boss 6. The first boss 5 has a first annular groove 7, and the second boss 6 has a second annular groove 8. The first boss 5 and the second boss 6 correspond to and cooperate with each other. A first sealing ring 9 is provided in the first annular groove 7 of the first boss 5 and the second annular groove 8 of the second boss 6. The outer edges of the first boss 5 and the second boss 6 are both beveled to facilitate a tight pressing fit with the second sealing ring 13, thereby ensuring sealing performance. The annular sealing element includes an annular body 10 and a surrounding plate 11. The surrounding plate 11 is provided around the annular body 10. The inner sides of both ends of the surrounding plate 11 are chamfered to ensure that the edges of the first flange 1 and the second flange 2 can be smoothly inserted into the surrounding plate 11. The annular body 10 is clamped between the first flange 1 and the second flange 2. The surrounding plate 11 wraps around the outer edges of the first flange 1 and the second flange 2. A groove 12 is provided on the inner side of the annular body 10. A second sealing ring 13 is provided in the groove 12. The second sealing ring 13 is tightly connected to the outer edges of the first boss 5 and the second boss 6. A third annular groove 14 and a fourth annular groove 15 are provided on both sides of the annular body 10. A third sealing ring 16 is provided in the third annular groove 14, and a fourth sealing ring 17 is provided in the fourth annular groove 15. The third sealing ring 16 is tightly connected to the first flange 1, and the fourth sealing ring 17 is tightly connected to the second flange 2.

[0013] Installation method and operating principle: First, place the first sealing ring 9 into the first annular groove 7 of the first boss 5 or the second annular groove 8 of the second boss 6. Then, place the second sealing ring 13 into the groove 12 inside the ring body 10. Next, place the third sealing ring 16 into the third annular groove 14 and the fourth sealing ring 17 into the fourth annular groove 15. Place the annular sealing element between the first flange 1 and the second flange 2. After aligning the holes, tighten the first flange 1, the second flange 2, and the annular sealing element using bolts 3 and nuts 4. At this time, the first sealing ring 9 and the second sealing ring 13 seal the contact surface of the first boss 5 and the second boss 6, the third sealing ring 16 seals the space between the ring body 10 and the first flange 1, and the fourth sealing ring 17 seals the space between the ring body 10 and the second flange 2. This utility model has a reasonable structure. A first boss 5 is provided on the outer side of the first flange 1, and a second boss 6 is provided on the outer side of the second flange. A first sealing ring 9 is provided in the first annular groove 7 of the first boss 5 and the second annular groove 8 of the second boss 6. An annular body 10 is provided between the first flange 1 and the second flange 2. A second sealing ring 13 is provided on the inner side of the annular body 10 through a groove 12. A third sealing ring 16 and a fourth sealing ring 17 are provided on both sides of the annular body 10 through a third annular groove 14 and a fourth annular groove 15, respectively. The first sealing ring 9 and the second sealing ring 13 seal the contact surface of the first boss 5 and the second boss 6. The third sealing ring 16 seals the connection between the annular body 10 and the first flange 1. The fourth sealing ring 17 seals the connection between the annular body 10 and the second flange 2. This greatly improves the sealing performance of the connection between the two flanges of the electrical equipment, reduces the probability of leakage under high pressure, and a surrounding plate 11 is provided on the outer side of the annular body 10 to prevent misalignment of the two flanges and improve the connection stability between the two flanges.

[0014] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0015] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A seal plugging structure at a flange of an electrical device, characterized by: Includes a first flange (1), a second flange (2) and an annular sealing element. The first flange (1) and the second flange (2) are fastened together by bolts (3) and nuts (4). The outer side of the first flange (1) is provided with a first boss (5) and the outer side of the second flange (2) is provided with a second boss (6). The first boss (5) is provided with a first annular groove (7) and the second boss (6) is provided with a second annular groove (8). The first boss (5) and the second boss (6) correspond to each other and cooperate with each other. The first annular groove (7) of the first boss (5) and the second annular groove (8) of the second boss (6) are provided with a first sealing ring (9). The annular sealing component includes an annular body (10) and a surrounding plate (11). The annular body (10) is surrounded by a surrounding plate (11). The annular body (10) is clamped between a first flange (1) and a second flange (2). The surrounding plate (11) wraps around the outer edges of the first flange (1) and the second flange (2). A groove (12) is provided on the inner side of the annular body (10). A second sealing ring (13) is provided in the groove (12). The second sealing ring (13) is tightly connected to the outer edges of the first boss (5) and the second boss (6). A third annular groove (14) and a fourth annular groove (15) are provided on both sides of the annular body (10). A third sealing ring (16) is provided in the third annular groove (14). A fourth sealing ring (17) is provided in the fourth annular groove (15). The third sealing ring (16) is tightly connected to the first flange (1). The fourth sealing ring (17) is tightly connected to the second flange (2).

2. The sealing and plugging structure for an electrical equipment flange according to claim 1, characterized in that: The outer edges of the first boss (5) and the second boss (6) are both inclined surfaces.

3. The sealing and plugging structure for an electrical equipment flange according to claim 1, characterized in that: The inner sides of both ends of the enclosure (11) are chamfered.

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