GIS butt joint shell
By designing a GIS docking shell with a gradually changing barrel diameter and an eccentric flange, the problem of high complexity in traditional GIS shell docking is solved, achieving a simple, stable, and lightweight docking effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 国电博纳(北京)电力设备有限公司
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional GIS shell structures present high complexity during docking, especially when the interface dimensions of the shells of new and old products change. This requires the addition of displacement compensation structures or the use of L-shaped busbars for docking, resulting in significant construction difficulties.
Design a GIS docking shell with a barrel diameter that gradually changes along the axial direction and eccentric first and second flanges at both ends. The barrel is made of aluminum alloy, and the flange faces are provided with double sealing grooves and positioning pin holes. The docking is achieved through the eccentric design, reducing complexity.
It achieves a simple docking shell structure, adapts to docking of shells of different diameters, reduces construction complexity, improves sealing and stability, and has the properties of being lightweight and high-strength.
Smart Images
Figure CN224204650U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of high voltage switches, specifically, it relates to a GIS docking housing. Background Technology
[0002] In the expansion projects of gas-insulated metal-enclosed switchgear (GIS), traditional enclosure structures often employ uniform-diameter straight cylinders or L-shaped and T-shaped cylindrical designs. When the equipment design is improved or the equipment is replaced, the interface dimensions of the enclosures between the old and new products often change. Traditional solutions require adding displacement compensation structures or connecting multiple L-shaped busbars, but these methods are difficult to construct and make the GIS enclosure structure cumbersome. Therefore, how to reduce the complexity of the GIS enclosure when connecting it has become a pressing problem for those skilled in the art. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a GIS docking shell, including: a barrel body, a first flange and a second flange; the barrel body is open at both ends, and the diameter of the barrel body gradually changes along the axial direction of the barrel body;
[0004] The first flange is fixedly installed at one end of the barrel opening, and the second flange is fixedly installed at the other end of the barrel opening.
[0005] The first flange has a larger bore diameter than the second flange, and the interfaces of both the first and second flanges are eccentrically positioned.
[0006] In one possible implementation, the flange face of the first flange has a double sealing groove, and a sealing ring is placed in the sealing groove.
[0007] In one possible implementation, there is a gap between the two sealing grooves.
[0008] In one possible implementation, the barrel is made of aluminum alloy, and the coefficient of aluminum alloy used in different areas of the barrel is also different.
[0009] In one possible implementation, the main body of the barrel is made of 5-series aluminum alloy, while the high-stress areas of the barrel are made of 7-series aluminum alloy.
[0010] The local high-stress areas refer to the contact areas between the first flange and the barrel body, and the contact areas between the second flange and the barrel body.
[0011] In one possible implementation, a handhole is provided in the barrel wall, and a docking flange is provided on the window of the handhole;
[0012] The flange face of the mating flange is equipped with a double sealing ring.
[0013] In one possible implementation, both the first flange and the second flange are provided with locating pin holes, which are located on the flange faces of the first flange and the second flange.
[0014] In one possible implementation, four locating pin holes are provided on both the first and second flanges;
[0015] The four locating pin holes are respectively located at the four relative positions of the flange faces of the first flange and the second flange in four directions.
[0016] Beneficial effects: The mating shell of this application gradually changes the diameter of the barrel along the axial direction of the barrel, so that the barrel diameter can adapt to flanges of different diameters, thereby mating two shells with different end diameters. Moreover, by using the eccentric design of the flanges fixedly connected at both ends of the barrel, it is possible to mate two shells with offsets without the need to add displacement compensation structures or use L-shaped busbars for mating, thus effectively reducing the complexity of the shells after mating.
[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0018] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:
[0019] Figure 1 This is a front view of a GIS docking shell according to an embodiment of the present invention;
[0020] Figure 2 This is a right-side view of a GIS docking housing according to an embodiment of the present invention;
[0021] Figure 3 This is a schematic diagram of a GIS docking shell with a reinforcing member according to an embodiment of the present invention;
[0022] Figure 4 This is an embodiment of the present utility model. Figure 3 The right side view shows the GIS docking shell equipped with reinforcing components;
[0023] Figure 5 This is an embodiment of the present utility model. Figure 3 The front view of the GIS docking shell with reinforcing components;
[0024] The attached diagram lists the components represented by each number as follows:
[0025] Barrel body 100, first flange 200, second flange 300, double sealing groove 400, sealing ring 500, main sealing groove 410, secondary sealing groove 420, main body 110, high stress area 120, reinforcing member 130, hand hole 600, butt flange 610, locating pin hole 310, recessed plane 320.
[0026] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0027] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.
[0028] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application or to simplify 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 application.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0030] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0031] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.
[0032] Figure 1This application shows a front view of the GIS docking shell. Figure 2 This shows a right-side view of the GIS docking housing of this application. See also Figures 1 to 2 As shown, the GIS docking housing of this application includes a barrel 100, a first flange 200, and a second flange 300; the barrel 100 has openings at both ends, and the diameter of the barrel 100 gradually changes along the axial direction of the barrel; the first flange 200 is fixedly installed at one end opening of the barrel 100, and the second flange 300 is fixedly installed at the other end opening of the barrel 100; wherein, the diameter of the first flange 200 is larger than the diameter of the second flange 300, and the interfaces of the first flange 200 and the second flange are both eccentrically arranged.
[0033] The GIS docking shell of this application achieves this by gradually varying the diameter of the barrel 100 along its axial direction, allowing it to connect shells of different diameters. This solves the problem of difficulty in docking shells when using straight cylinders of equal diameter or L-shaped / T-shaped cylinders due to inconsistent diameters at both ends. Furthermore, both ends of the barrel 100 are fixedly equipped with a first flange 200 and a second flange 300. When docking shells of different diameters, the first flange 200 and the second flange 300 can be bolted to the corresponding diameter shell, thus achieving docking of two shells of different diameters. Further, the eccentric setting of the interfaces of the first flange 200 and the second flange 300 in this application solves the problem of complex shells caused by the need for additional displacement compensation structures or the use of L-shaped busbars when the shells at both ends are eccentric. In other words, by setting the interfaces of the flanges at both ends of the docking shell eccentrically, this application can achieve docking of shells with offsets without the need for additional displacement compensation structures or the use of L-shaped busbars, thereby reducing the complexity of the shell. By gradually changing the diameter of the barrel along the axial direction of the barrel and setting the flange interfaces fixed at both ends of the barrel eccentrically, it is possible to connect shells with offset and inconsistent port diameters when docking shells. Moreover, the docking shell structure of this application is simple, which reduces the complexity of the shell.
[0034] It should be noted that the diameter of the barrel 100 gradually changes along the axial direction of the barrel, making it compatible with flanges of different sizes; the first flange 200 is suitable for shells with the same diameter that can be detachably connected and fixedly connected to the first flange; the second flange 300 is suitable for shells with the same diameter that can be detachably connected and fixedly connected to the second flange; the eccentric setting of the interfaces of the first flange 200 and the second flange 300 is suitable for docking two shells with offset.
[0035] It should be noted that the length of the barrel 100 of the docking shell can be adjusted to accommodate docking with different offsets. For example, the total length of the barrel 100 is set to 650mm, the outer diameter of one flange is set to 525mm, the outer diameter of the other flange is set to 690mm, and the eccentricity of the flange interfaces at both ends is set to 50mm.
[0036] In one possible implementation, see [link to relevant documentation] Figure 2 As shown, the flange face of the first flange 200 is provided with double sealing grooves 400, and a sealing ring 500 is placed in the sealing grooves 400, which is suitable for pipeline sealing to improve airtightness. The double sealing grooves 400 are spaced apart by a distance of 5mm.
[0037] In one possible implementation, a recessed plane 320 is provided on the side of the barrel 100 facing the second flange 300, and a height difference is provided between the recessed plane 320 and the flange face of the second flange 300. This ensures that when the mating shell of this application is used, the groove on the corresponding shell matches the recessed plane 320 of the barrel 100 when the side of the barrel 100 facing the second flange 300 is mated with the corresponding shell, thus guaranteeing the sealing of the equipment after mating. It should be noted that the height difference between the recessed plane 320 and the second flange 300 is 0.1 mm.
[0038] It should be noted that the recessed surface 320 is a highly smooth surface, free of scratches or defects, which effectively improves the airtightness of the equipment after docking. In one possible implementation, the surface finish of the recessed surface 320 is Ra3.2 or Ra1.6.
[0039] In one possible implementation, when the second flange 300 of this application is mated with the corresponding housing, the corresponding housing extends into the barrel 100 through the opening of the second flange 300, causing the recessed plane 320 to engage within the groove of the corresponding housing, thereby ensuring the sealing performance of the equipment after mating. Simultaneously, bolts are used to pass through the through-hole of the second flange 300 and the flange through-hole of the corresponding housing to achieve mating between the mating housing side and the corresponding housing.
[0040] In one possible implementation, the double-seal groove 400 includes a main seal groove 410 and a secondary seal groove 420. The main seal groove 410 is located inside the secondary seal groove 420. The main seal groove 410 primarily seals the pipeline, while the secondary seal groove 420 assists in sealing. Simultaneously, because it is located outside the main seal groove, it also prevents moisture from entering the pipeline from outside the flange. Compared to traditional single-seal designs, this application's double-seal design on the flange faces of both ends of the mating shell effectively improves the airtightness of the pipeline after mating.
[0041] In one possible implementation, the sealing ring 500 placed within the double sealing groove 400 is a rubber O-ring.
[0042] In one possible implementation, the barrel body 100 is made of aluminum alloy, and the coefficient of the aluminum alloy used in different areas of the barrel body 100 is also different. It should be noted here that the aluminum alloy coefficient refers to the aluminum alloy grade. Specifically, the main body 110 of the barrel body 100 uses 5-series aluminum alloy, while the locally high-stress areas 120 of the barrel body use 7-series aluminum alloy. It should be noted that the locally high-stress areas 120 refer to the contact areas between the first flange 200 and the barrel body 100, and the contact areas between the second flange 300 and the barrel body 100.
[0043] It should also be noted that traditional docking housings are typically made of steel, which suffers from being heavy and having poor corrosion resistance. In contrast, the docking housing of this application is made of aluminum alloy, which offers the advantages of being lightweight and high-strength. This allows the GIS docking housing of this application to simultaneously possess both lightweight and high-strength properties. Therefore, the problems of heavy weight and poor corrosion resistance inherent in traditional steel docking housings can be solved.
[0044] In one possible implementation, see [link to relevant documentation] Figure 2 As shown, the barrel body 100 has a handhole 600 on its wall, and a docking flange 610 is installed on the window of the handhole 600. The flange face of the docking flange 610 is equipped with a double sealing ring. The handhole 600 is suitable for tools to be inserted into or hands to operate into the pipeline for debugging, and the docking flange 610 is suitable for detachable connection with the handhole cover.
[0045] It should be noted that the mating flange 610 is fixedly installed on the window of the manhole 600, and a double sealing groove is provided on the flange face of the mating flange 610. The sealing ring is placed in the sealing groove to improve the airtightness of the pipeline when the manhole cover plate is connected to the mating flange 610.
[0046] In one possible implementation, during assembly, the sealing ring is placed into the sealing groove, then the cover flange is aligned with the mating flange 610, and finally bolts are passed through the through hole of the handhole cover flange to connect the through hole of the mating flange 610, thereby achieving a detachable connection between the handhole cover and the mating flange.
[0047] In one possible implementation, two handholes 600 are provided, and the two handholes are arranged adjacent to each other on the side wall of the barrel body 100.
[0048] In one possible implementation, see [link to relevant documentation] Figure 1As shown, both the first flange 200 and the second flange 300 are provided with locating pin holes 310, and the locating pin holes 310 are located on the flange faces of the first flange 200 and the second flange 300. It should be noted that the locating pin holes 310 are suitable for quick and accurate positioning when the first flange 200 and the second flange 300 are respectively mated with the corresponding shell, so as to improve the installation efficiency.
[0049] In one possible implementation, four locating pin holes 310 are provided on both the first flange 200 and the second flange 300, and the four locating pin holes 310 are respectively located at relative positions in four directions on the flange faces of the first flange 200 and the second flange 300. It should be noted that the four locating pin holes 310 are all located between every two adjacent through holes of the first flange 200 and the second flange 300.
[0050] In one possible implementation, see [link to relevant documentation] Figures 3 to 5 As shown, a reinforcing member 130 is also provided at a locally weak point of the barrel 100, and the reinforcing member 130 is fixedly connected to the barrel 100. The reinforcing member 130 is used to distribute eccentric loads. It should be noted that due to the eccentric interface of the first flange 200 and the second flange 300 fixedly connected at both ends of the barrel 100, some weak areas may bear large loads when docking with shells that have an offset, leading to unstable docking. The docking shell of this application can effectively distribute eccentric loads by providing the reinforcing member 130 at the weak point, thereby effectively improving the stability of the docking shell.
[0051] In one possible implementation, a reinforcing member 130 is provided on the side of each handhole 600, and there are two or more reinforcing members 130 for each handhole 600. The two or more reinforcing members 130 are respectively welded to the cylinder of the handhole 600, the docking flange 610 and the barrel 100 to optimize stress distribution, avoid local high stress, and thus improve the stability of the docking shell.
[0052] In one possible implementation, the reinforcing member 130 can be a hexagonal reinforcing rib plate, and the material can be aluminum.
[0053] Therefore, this application provides a GIS docking housing, including: a barrel body 100, a first flange 200, and a second flange 300; the barrel body 100 has openings at both ends, and the diameter of the barrel body 100 gradually changes along the axial direction of the barrel body; the first flange 200 is fixedly disposed at one end opening of the barrel body 100, and the second flange 300 is fixedly disposed at the other end opening of the barrel body 100; wherein, the diameter of the first flange 200 is larger than the diameter of the second flange 300, and the interfaces of the first flange 200 and the second flange 300 are both eccentrically disposed. The barrel diameter of the GIS docking housing of this application gradually changes along the barrel body, allowing the docking housing to connect shells with different diameters at both ends, thereby achieving the docking of shells with different diameters. Moreover, the eccentrically disposed interfaces of the first and second flanges fixedly connected at both ends of the barrel body of this application can meet the requirements of shell docking even when there is an offset between the two shells during docking. This solves the problem of the complexity of the shell caused by the need to add an offset compensation structure or use an L-shaped busbar when docking shells with offsets at both ends in traditional methods. Meanwhile, due to the gradual change in barrel diameter along the axial direction of the barrel and the eccentric design of the flange interfaces fixedly connected at both ends of the barrel, the GIS docking shell of this application has the ability to connect shells with offset and inconsistent port diameters. In addition, the GIS docking shell of this application has a simple structure, which can effectively reduce the complexity of the GIS shell.
[0054] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.
Claims
1. A GIS docking shell, characterized in that, include: Barrel body, first flange and second flange; The barrel has openings at both ends, and the diameter of the barrel gradually changes along the axial direction of the barrel. The first flange is fixedly installed at one end opening of the barrel body, and the second flange is fixedly installed at the other end opening of the barrel body. The first flange has a larger bore diameter than the second flange, and the interfaces of both the first flange and the second flange are eccentrically positioned.
2. The GIS docking shell according to claim 1, characterized in that, The flange face of the first flange is provided with a double sealing groove, and a sealing ring is placed in the sealing groove.
3. A GIS docking shell according to claim 2, characterized in that, There is a gap between the two sealing grooves.
4. A GIS docking shell according to claim 1, characterized in that, The barrel body is made of aluminum alloy, and the coefficient of aluminum alloy used in different areas of the barrel body is also different.
5. A GIS docking shell according to claim 4, characterized in that, The main body of the barrel is made of 5-series aluminum alloy, and the high-stress areas of the barrel are made of 7-series aluminum alloy. The local high-stress areas refer to the contact areas between the first flange and the barrel body, and the contact areas between the second flange and the barrel body.
6. A GIS docking shell according to claim 1, characterized in that, The barrel wall is provided with a hand hole, and a docking flange is provided on the window of the hand hole; The flange face of the mating flange is equipped with a double sealing ring.
7. A GIS docking shell according to claim 1, characterized in that, Both the first flange and the second flange are provided with locating pin holes, which are located on the flange faces of the first flange and the second flange.
8. A GIS docking housing according to claim 7, characterized in that, Four locating pin holes are provided on both the first flange and the second flange; The four locating pin holes are respectively located at relative positions in four directions on the flange faces of the first flange and the second flange.