An adjustable-angle GIL corner structure for vertical shafts

Abstract

An adjustable-angle GIL corner structure for vertical shafts includes a corner module body, a waist-shaped flange, a round-hole flange, a corner housing, and a connecting housing. The corner housing is connected to the lower side of the basin-type insulator on the left side of the corner module body, and the connecting housing is connected to the left side of the basin-type insulator on the lower side of the corner module body. The waist-shaped flange is connected to the corner housing, and the round-hole flange is connected to the connecting housing. The waist-shaped flange and the round-hole flange are fixed together by a connector. This application has a simple structure, achieves angle deflection, and solves the problem of existing engineering projects requiring the design of multiple corner housings and having low standardization of drawings.

Description

Technical Field

[0001] This invention relates to the field of power transmission and distribution technology, and more specifically to an adjustable-angle GIL corner structure for vertical shafts. Background Technology

[0002] GIL is a high-voltage, high-current, long-distance power transmission equipment that uses SF6 or other gases for insulation and has conductors enclosed in a metal casing. Compared with traditional overhead lines and cable technology, it has significant advantages such as large transmission capacity, flexible layout, high reliability, and minimal environmental impact.

[0003] Currently, vertical shaft tunnels are commonly encountered in engineering projects. When the shaft is extended upwards, the vertical section needs to be converted into a horizontal section, requiring corner modules with different horizontal deflection angles. This increases the variety of corner shell drawings in engineering design, leading to customized production and hindering standardized production. Furthermore, when the deflection angles are similar, assembly errors are easily caused. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable-angle GIL corner structure for vertical shafts, in order to solve the technical problems in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable-angle GIL corner structure for vertical shafts includes a corner module body, a waist-shaped flange, a round-hole flange, a corner housing, and a connecting housing. The corner housing is connected to the lower side of the basin-type insulator on the left side of the corner module body, and the connecting housing is connected to the left side of the basin-type insulator on the lower side of the corner module body. The waist-shaped flange is connected to the corner housing, and the round-hole flange is connected to the connecting housing. The waist-shaped flange and the round-hole flange are fixed by a connector.

[0007] In some embodiments, the waist-shaped flange is annular, with an inner ring of threaded holes. The size of the threaded holes matches the through holes on the flange of the corner housing. The corner housing is bolted into the threaded holes of the waist-shaped flange to complete the connection.

[0008] In some embodiments, the circular hole flange is annular, and a ring of countersunk holes is machined on the circular hole flange, through which bolts are assembled with the connecting housing.

[0009] In some embodiments, the outer side of the waist-shaped flange has a ring of waist-shaped holes, and the outer side of the round-hole flange has a ring of round holes opposite to the waist-shaped flange.

[0010] In some embodiments, the connector is an arc-shaped pressure plate, the arc of which coincides with the arc of the waist-shaped flange and / or the arc of the round-hole flange.

[0011] The beneficial effects of this invention compared to the prior art are:

[0012] This invention provides an adjustable angle GIL corner structure for vertical shafts. The structure is simple. By adding two sets of special flanges to the lower side of a conventional 90° corner shell, the special flanges adopt a waist-shaped hole design. By adjusting the fixing position of the bolts in the waist-shaped hole, the angle deflection can be achieved. This solves the problem that existing projects require the design of various corner shells and the low degree of standardization of drawings. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention.

[0014] Figure 1 1. Corner housing, 2. Basin insulator, 3. Corner conductor, 4. Straight conductor, 5. Shielding cover, 6. Waist-shaped flange, 7. Round flange, 8. Arc-shaped pressure plate, 9. Connecting housing, 10. Basin insulator.

[0015] Figure 2 The images show the front and side views of the waist-shaped flange 6.

[0016] Figure 3 The images show the front and side views of the circular hole flange 7.

[0017] Figure 4 This is a schematic diagram of the arc-shaped pressure plate 8. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0019] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0022] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or display that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or display.

[0023] The following will combine Figure 1-4 This application provides a detailed description of an adjustable-angle GIL corner structure for vertical shafts, as described in the embodiments of this application. It is worth noting that the following embodiments are merely illustrative of this application and do not constitute a limitation thereof.

[0024] Example 1:

[0025] like Figure 1 As shown, an adjustable-angle GIL corner structure for vertical shafts includes a corner module body, a waist-shaped flange, a round-hole flange, a corner housing, and a connecting housing. The corner housing 1 is a cast shell; in other embodiments, the corner housing 1 can also be a welded component. The corner housing is connected to the lower side of the basin-type insulator on the left side of the corner module body, and the connecting housing is connected to the left side of the basin-type insulator on the lower side of the corner module body. The waist-shaped flange is connected to the corner housing, and the round-hole flange is connected to the connecting housing. The waist-shaped flange and the round-hole flange are fixed together by a connector.

[0026] The corner module body includes: a corner conductor 3, a straight conductor 4, and a shielding cover 5. The corner conductor 3 can be a single integral corner conductor or it can be composed of several short conductors spliced ​​together. During installation, the corner conductor 3 is connected and fixed to the basin-type insulator 2 with bolts, and then connected and fixed to the corner housing 1 with bolts.

[0027] The straight conductor 4 has a female contact at one end, which can adopt a watchband contact structure or a staggered contact structure, and can be plugged into the corner conductor 3. The other end is fixed to the basin-type insulator 10. The shield 5 is installed on the outside of the straight conductor 4 to mitigate the electric field. During installation, after the basin-type insulator 10 and the straight conductor 4 are assembled, they are connected to the connecting housing 9 by bolts. The lower assembly B is then assembled.

[0028] In the preferred embodiment, the straight conductor and the corner conductor are connected by a plug-in contact, which can be a watch strap contact or a clover contact.

[0029] In the preferred embodiment, the shield is a hollow structure with openings at both ends, and an arc-shaped platform is machined in the center of the shield to match the straight conductor. Fasteners pass radially through the shield and connect to the conductor.

[0030] In some embodiments, the waist-shaped flange is annular, with an inner ring of threaded holes. The size of the threaded holes matches the through holes on the flange of the corner housing. The corner housing is bolted into the threaded holes of the waist-shaped flange to complete the connection.

[0031] In the preferred embodiment, the inner ring of the waist-shaped flange 6 has a ring of threaded holes 602, the size of which matches the through hole on the corner housing 1 flange. During installation, the corner housing 1 is bolted into the threaded holes 602 of the waist-shaped flange 6 to complete the connection. The upper assembly A is then assembled.

[0032] In some embodiments, the circular hole flange is annular, and bolts are assembled with the connecting housing 9 through countersunk holes. A ring of countersunk holes 701 is machined on the circular hole flange 7. During installation, bolts are assembled with the connecting housing 9 through the countersunk holes.

[0033] The oblong flange 6 and the round flange 7 are connected. The oblong flange 6 has an oblong hole 601 on the outside. When it is connected with the round hole 702 of the round flange 7, the angle can be adjusted left and right to complete the angle deflection. Finally, it is fixed by the arc-shaped pressure plate 8. The assembly of the upper part assembly A and the lower part assembly B is completed. The assembly of the entire corner module is thus completed.

[0034] During the on-site assembly process, loosen the fixing bolts between the waist-shaped flange 6 and the round-hole flange 7. Since the waist-shaped flange 6 is designed with a waist-shaped hole, it can be rotated at any angle. After confirming the angle, tighten the bolts between the waist-shaped flange 6 and the round-hole flange 7 to complete the installation of the entire structure.

[0035] In the preferred design, both the waist-shaped flange and the round-hole flange feature a double-ring threaded hole design. The inner threaded hole mates with the shell, while the outer threaded hole mates with the flange itself. A sealing groove is designed between the inner and outer double threaded holes, requiring a sealing ring to be installed during installation to ensure an airtight seal.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable-angle GIL corner structure for vertical shafts, characterized in that, It includes a corner module body, a waist-shaped flange, a round-hole flange, a corner housing, and a connecting housing. The corner housing is connected to the lower side of the basin-type insulator on the left side of the corner module body, and the connecting housing is connected to the left side of the basin-type insulator on the lower side of the corner module body. The waist-shaped flange is connected to the corner housing, and the round-hole flange is connected to the connecting housing. The waist-shaped flange and the round-hole flange are fixed by a connector. The waist-shaped flange is annular, with an inner ring of threaded holes. The size of the threaded holes matches the through holes on the flange of the corner housing. The corner housing is bolted into the threaded holes of the waist-shaped flange to complete the connection. The circular hole flange is annular, and a ring of countersunk holes is machined on the circular hole flange. Bolts are assembled with the connecting shell through the countersunk holes. The outer side of the waist-shaped flange has a ring of waist-shaped holes, and the outer side of the round-hole flange has a ring of round holes opposite to the waist-shaped flange. The connector is an arc-shaped pressure plate, and the arc shape of the arc-shaped pressure plate coincides with the arc shape of the waist-shaped flange and / or the round-hole flange.

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