Static side supporting device of extra-high voltage isolation switch

Abstract

The utility model discloses an extra-high voltage isolation switch static side supporting device, which belongs to the technical field of extra-high voltage isolation switch supporting and comprises a plurality of first supporting rods. The upper end and the lower end of the first supporting rod are sleeved with flange nuts in a threaded mode respectively. The lower flange nut is connected with a lower supporting plate, and the upper flange nut is connected with an upper supporting plate. A plurality of second supporting rods are connected to the lower supporting plate, and side supporting plates are connected to the second supporting rods. The flange nuts are screwed at the two ends of the first supporting rod, the lower supporting plate is placed on the bottom cover, the lower flange nuts are installed on the lower supporting plate, the upper supporting plate is installed on the upper flange nuts, the side supporting plate abuts against the inner side face of the circumference of the extra-high voltage isolation switch tank, the first supporting rod is synchronously rotated, and the upper supporting plate rises; therefore, the static side lower shield of the extra-high voltage isolation switch is supported, the problem that a static side conductor is damaged in the shipping process of the extra-high voltage isolation switch is effectively avoided, and normal operation after the extra-high voltage isolation switch is put into operation is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultra-high voltage disconnector supports, in particular to a static side support device for an ultra-high voltage disconnector. Background Art

[0002] With the continuous advancement of power system technology, the R&D capabilities of major high-voltage electrical equipment manufacturers have continued to grow. High-voltage switchgear structures are becoming more rational and their performance more reliable, making them well-positioned to develop and produce ultra-high voltage (UHV) electrical equipment. The use of UHV transmission lines not only promotes grid technology upgrades, improves the efficiency and economy of long-distance, high-capacity power transmission, conserves transmission corridor resources, but also enhances the independent innovation capabilities of the power transmission and transformation manufacturing industry.

[0003] The transmission capacity of ultra-high voltage transmission lines is largely determined by the stability of the power system. As an important component in the power system, the operating stability of enclosed combined electrical disconnector equipment plays a key role in the entire ultra-high voltage power supply system.

[0004] Ultra-high voltage disconnectors are crucial devices used to isolate high-voltage circuits in power systems. Their primary function is to open or close circuits in the absence of load current, ensuring safe maintenance and reliable system operation. These disconnectors lack arc extinguishing devices and therefore cannot be used to interrupt load current or short-circuit current.

[0005] The dynamic and static sides of the current UHV disconnectors are both cantilever structures, fixed by a single-sided insulating basin and a tank body. Currently, most UHV stations are located in power generation areas with abundant resources such as coal and wind power, such as inland areas and islands. These areas generally have complex terrain and long distances. When the UHV disconnectors are shipped, the static side conductor is easily damaged due to the large overall mass, which will greatly increase the failure rate after commissioning. Utility Model Content

[0006] In order to solve the problem that when the ultra-high voltage disconnector is shipped, the overall mass of the static side is large, which easily causes damage to the static side conductor and greatly increases the failure rate after commissioning, the utility model provides a static side support device for the ultra-high voltage disconnector.

[0007] The utility model is realized through the following technical solutions:

[0008] A static side support device for an ultra-high voltage disconnector, comprising a plurality of upright first support rods; flange nuts are threadedly fitted on the upper and lower ends of the first support rods, and the threads at the two ends of the first support rods have opposite rotation directions; a lower support plate capable of abutting against the bottom cover of the ultra-high voltage disconnector tank body is connected and installed on the lower side of the lower flange nut, and an upper support plate capable of supporting the lower shielding of the static side of the ultra-high voltage disconnector is connected and installed on the upper side of the upper flange nut; a plurality of second support rods are connected and installed on the lower support plate, and a side support plate capable of abutting against the circumferential inner side surface of the ultra-high voltage disconnector tank body is connected and installed on the end of the second support rod away from the lower support plate.

[0009] A further improvement of the present invention is that the upper support plate and the lower support plate are in corresponding circular structures; and the first support rods are arranged in a ring array.

[0010] A further improvement of the present invention is that a clamping surface capable of clamping and rotating a tool is provided in the middle of the first support rod.

[0011] A further improvement of the present invention is that two first locking nuts are screwed onto the upper and lower ends of the first support rod respectively.

[0012] A further improvement of the present invention is that protective rubber pads are respectively provided on the upper side of the upper support plate and the lower side of the lower support plate.

[0013] A further improvement of the present invention is that the second support rods are arranged in a ring array.

[0014] A further improvement of the present invention is that a plurality of lugs are provided on the lower support plate; and the second support rod is rotatably connected and installed with the lugs via the first shaft.

[0015] A further improvement of the present invention is that it further comprises a second shaft rod capable of penetrating the ear plate and the second support rod.

[0016] A further improvement of the present invention is that a sleeve which is threadably fitted onto the second support rod is connected to the side support plate.

[0017] A further improvement of the present invention is that a second locking nut capable of abutting against the sleeve for limiting position is screwed onto the second support rod.

[0018] It can be seen from the above technical solutions that the beneficial effects of the present invention are:

[0019] During use, the various components are first transferred to the interior of the UHV disconnector tank (on the bottom cover) through the inspection manhole. The operator then enters through the inspection manhole. The static side support device for the UHV disconnector is then assembled within the tank. Flange nuts are screwed onto the ends of the first support rods. The lower support plate is placed on the bottom cover. The lower flange nut is connected to the lower support plate, and the upper support plate is connected to the upper flange nut. The side support plates at the outer ends of several second support rods are positioned against the inner circumferential surface of the UHV disconnector tank. The first support rods are then rotated synchronously. Since the threads at the ends of the first support rods rotate in opposite directions, the upper support plate is raised, providing reliable support for the static side lower shield of the UHV disconnector. This effectively prevents damage to the static side conductor during shipment of the UHV disconnector and ensures normal operation after commissioning. The overall structure is simple, easy to assemble and disassemble, and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the use structure of a specific implementation method of the utility model.

[0022] Figure 2 It is a structural diagram of a specific implementation method of the utility model.

[0023] Figure 3 It is a side structural schematic diagram of a specific implementation method of the utility model.

[0024] Figure 4 It is a schematic top view of the structure of a specific embodiment of the utility model.

[0025] In the accompanying drawings: 1. UHV disconnector tank body, 2. UHV disconnector static side lower shield, 3. Upper support plate, 4. Lower support plate, 5. Second support rod, 6. First support rod, 7. Flange nut, 8. First locking nut, 9. Clamping surface, 10. Ear plate, 11. First shaft rod, 12. Second shaft rod, 13. Second locking nut, 14. Sleeve, 15. Side support plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0027] like Figure 1-4 As shown, the utility model discloses a UHV isolating switch static side support device. The UHV isolating switch includes a UHV isolating switch tank 1, a bottom cover mounted at the bottom of the UHV isolating switch tank 1, a UHV isolating switch static side mounted within the UHV isolating switch tank 1, and a UHV isolating switch static side lower shield 2 disposed below the static side. The UHV isolating switch static side support device includes a plurality of upright first support rods 6; flange nuts 7 are threadedly mounted on the upper and lower ends of the first support rods 6, with the threads at the two ends of the first support rods 6 having opposite rotational directions; a lower support plate 4 is mounted on the lower side of the lower flange nut 7, capable of abutting the bottom cover of the UHV isolating switch tank 1; an upper support plate 3 is mounted on the upper side of the upper flange nut 7, capable of supporting the UHV isolating switch static side lower shield 2; a plurality of second support rods 5 are mounted on the lower support plate 4, and a side support plate 15 is mounted on the end of the second support rod 5 away from the lower support plate 4, capable of abutting the inner circumferential surface of the UHV isolating switch tank 1.

[0028] When using the UHV disconnector static side support device, the various components are first transferred to the interior of the UHV disconnector tank 1 (on the bottom cover) through the inspection manhole of the UHV disconnector tank 1. The operator enters through the inspection manhole. The UHV disconnector static side support device is then assembled within the UHV disconnector tank 1. Flange nuts 7 are screwed onto the ends of the first support rods 6. The lower support plate 4 is placed on the bottom cover. The lower flange nuts 7 are connected and installed to the lower support plate 4, and the upper support plate 3 is connected and installed to the upper flange nuts 7. The side support plates 15 at the outer ends of the plurality of second support rods 5 are positioned against the inner circumferential surface of the UHV disconnector tank 1. The plurality of first support rods 6 are rotated synchronously. Because the threads at the ends of the first support rods 6 rotate in opposite directions, the upper support plate 3 is raised, thereby reliably supporting the UHV disconnector static side lower shield 2. This ensures that the static side does not move significantly in either the circumferential or circumferential direction, effectively preventing damage to the static side conductor during shipment of the UHV disconnector and ensuring normal operation after commissioning. The overall structure is simple, easy to assemble and disassemble, and has good practicality.

[0029] The side support plate 15 is an arc-shaped plate that fits the inner side of the circumference of the UHV disconnector tank body 1, effectively ensuring the reliable stability of the side support plate 15 and the inner side of the circumference of the UHV disconnector tank body 1.

[0030] The upper support plate 3 and the lower support plate 4 are circular structures corresponding to each other, and the first support rods 6 are arranged in a circular array, with three first support rods 6, to ensure reliable and stable support for the lower shield 2 on the static side of the UHV disconnector.

[0031] The second support rods 5 are arranged in three ring arrays, which effectively ensures the reliable stability of the support against the inner side of the circumference of the UHV disconnector tank body 1 .

[0032] Furthermore, in order to realize the clamping and rotating operation of tools such as wrenches, a relative clamping surface 9 is opened in the middle of the first support rod 6.

[0033] Two first locking nuts 8 are screwed onto the upper and lower ends of the first support rod 6. These two first locking nuts 8 lock the flange nut 7 in place, preventing it from loosening due to alternating forces during transportation and ensuring reliable support for the lower shield 2 on the static side of the UHV disconnector.

[0034] Furthermore, protective rubber pads are provided on the upper side of the upper support plate 3 and the lower side of the lower support plate 4. The protective rubber pads protect the bottom cover and the lower shield 2 of the static side of the UHV disconnector from wear and play an anti-slip role.

[0035] Among them, the upper side of the lower support plate 4 is provided with a plurality of pairs of ear plates 10; the second support rod 5 is rotatably connected to the ear plates 10 through the first shaft 11. The first shaft 11 and the side support plate 15 can be folded for easy storage.

[0036] The static side support device of the UHV disconnector further includes a second shaft 12 that can penetrate the ear plate 10 and the second support rod 5. When the second shaft 12 is inserted, the second shaft 12 is in a horizontal state, and the side support plate 15 abuts and supports the inner circumferential surface of the UHV disconnector tank 1.

[0037] The side support plate 15 is connected to a sleeve 14 threadedly mounted on the second support rod 5. The side support plate 15 can be radially adjusted by rotating the sleeve 14, thereby reliably supporting the inner side of the circumference of the UHV disconnector tank 1.

[0038] Furthermore, the side support plate 15 is covered with a protective rubber pad that can be pressed against the inner circumference of the UHV disconnector tank body 1 to play a protective role and prevent the inner circumference of the UHV disconnector tank body 1 from wear.

[0039] Among them, the second support rod 5 is screwed with a second locking nut 13 that can abut against the sleeve 14 for limiting position. Through the abutment of the second locking nut 13 and the sleeve 14, the sleeve 14 can be locked to prevent the sleeve 14 from rotating.

[0040] To use this UHV disconnector static side support device, the various components are first transferred to the interior of the UHV disconnector tank 1 (on the bottom cover) through the inspection manhole on the UHV disconnector tank 1. The operator then enters through the inspection manhole. The UHV disconnector static side support device is then assembled within the UHV disconnector tank 1. Flange nuts 7 are screwed onto the ends of the first support rods 6. The lower support plate 4 is placed on the bottom cover. The lower flange nuts 7 are connected to the lower support plate 4, and the upper support plate 3 is connected to the upper flange nuts 7. The side support plates 15 at the outer ends of several second support rods 5 are positioned against the inner circumferential surface of the UHV disconnector tank 1. The first support rods 6 are then rotated synchronously. Because the threads on the ends of the first support rods 6 rotate in opposite directions, the upper support plate 3 is raised, providing reliable support for the UHV disconnector static side lower shield 2. This effectively prevents damage to the static side conductor during shipment of the UHV disconnector and ensures normal operation after commissioning. The overall structure is simple, easy to assemble and disassemble, and highly practical.

[0041] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0042] The terms "upper," "lower," "outer," "inner," and the like, if used in the specification and claims of the present invention and the accompanying drawings, are used to distinguish relative positions and do not necessarily define them. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0043] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A static side support device for a UHV disconnector, characterized in that: The invention comprises a plurality of first support rods (6) arranged upright; flange nuts (7) are respectively threadedly mounted on the upper and lower ends of the first support rods (6), and the threads at the two ends of the first support rods (6) are in opposite directions; a lower support plate (4) capable of abutting against the bottom cover of the UHV isolating switch tank (1) is connected and mounted on the lower side of the lower flange nut (7); an upper support plate (3) capable of supporting the lower shield (2) of the static side of the UHV isolating switch is connected and mounted on the upper side of the upper flange nut (7); a plurality of second support rods (5) are connected and mounted on the lower support plate (4); and a side support plate (15) capable of abutting against the inner side surface of the circumference of the UHV isolating switch tank (1) is connected and mounted on the end of the second support rods (5) away from the lower support plate (4).

2. The static side support device of the UHV disconnector according to claim 1, characterized in that: The upper support plate (3) and the lower support plate (4) are in a circular structure corresponding to each other; the first support rods (6) are arranged in a circular array.

3. The static side support device of the UHV disconnector according to claim 1, characterized in that: A clamping surface (9) capable of clamping and rotating a tool is provided in the middle of the first support rod (6).

4. The static side support device of the UHV disconnector according to claim 1, characterized in that: Two first locking nuts (8) are screwed onto the upper and lower ends of the first support rod (6) respectively.

5. The static side support device of the UHV disconnector according to claim 1, characterized in that: Protective rubber pads are respectively provided on the upper side of the upper support plate (3) and the lower side of the lower support plate (4).

6. The static side support device of the UHV disconnector according to claim 1, characterized in that: The second support rods (5) are arranged in a ring array.

7. The static side support device of the UHV disconnector according to claim 1, characterized in that: A plurality of lug plates (10) are provided on the lower support plate (4); the second support rod (5) is rotatably connected and installed with the lug plates (10) via the first shaft (11).

8. The static side support device of the UHV disconnector according to claim 7, characterized in that: It also includes a second shaft rod (12) capable of passing through the ear plate (10) and the second support rod (5).

9. The static side support device of the UHV disconnector according to claim 1, characterized in that: A sleeve (14) threadedly fitted with the second support rod (5) is connected and mounted on the side support plate (15).

10. The static side support device of the UHV disconnector according to claim 9, characterized in that: A second locking nut (13) capable of abutting and limiting the position with the sleeve (14) is screwed onto the second support rod (5).

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