V-shaped suspension string structure of nuclear power plant
By designing the V-shaped overhang string structure, using multiple hanging rings, adjustment plates and suspended insulators and other components, the problem of single overhang strings being easily broken under typhoons is solved, and the wind resistance of the 500kV line of the nuclear power plant is improved, ensuring that The safe and stable operation of the line.
Patent Information
- Application Number
- CN202420912039.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The single overhang string of the 500kV outgoing lead line of the nuclear power plant is prone to swing with the wind under the influence of a typhoon, causing the connection between the lead line and the casing, which poses safety hazards and equipment damage risks.
A V-shaped overhang string structure is designed, including a connecting plate and two overhang strings distributed in a "V" shape. Each overhang string consists of multiple hanging rings, adjustment plates, suspended insulators and wire clip components. The connection and configuration of these components form a stable stress-bearing structure and improve wind resistance.
It effectively improves the typhoon resistance capability of the nuclear power plant's 500kV line leads down the line, avoids line breaks caused by typhoons, and ensures the safe and stable operation of the line during the typhoon season.
Smart Images
Figure CN222234396U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nuclear power, in particular to a V-shaped suspension string structure of a nuclear power plant. Background Art
[0002] The original design of the 500kV outgoing line down conductor of the nuclear power plant was a single-unit suspension string, which was subjected to force on both the vertical and horizontal planes. Affected by the typhoon, the single-unit suspension string and the down conductor swayed with the wind. If the swing amplitude was too large or the swing was violent, the connection between the down conductor and the casing might be broken, and the outgoing line would lose its function, posing a great hidden danger to personal safety and causing great damage to the equipment. Utility Model Content
[0003] The utility model constructs a V-shaped suspension string structure of a nuclear power plant, comprising a connecting plate and two suspension strings distributed in a "V" shape, each of the suspension strings comprising a first U-shaped hanging ring, a second U-shaped hanging ring, a third U-shaped hanging ring, an extension ring, an adjustment plate, a first Z-shaped hanging plate, a ball head hanging ring, a suspension insulator, and a bowl head hanging plate;
[0004] The second end of the first U-shaped hanging ring is connected to the first end of the extension ring, the first end of the extension ring is connected to the first end of the second U-shaped hanging ring, the second end of the second U-shaped hanging ring is connected to the first end of the adjustment plate, the second end of the adjustment plate is connected to the first end of the first Z-shaped hanging plate, the second end of the first Z-shaped hanging plate is connected to the first end of the ball head hanging ring, the second end of the ball head hanging ring is connected to the first end of the suspension insulator, the second end of the suspension insulator is connected to the first end of the bowl head hanging plate, and the second end of the bowl head hanging plate is connected to the connecting plate.
[0005] In some embodiments, the V-shaped suspension string structure of the nuclear power plant further includes a voltage-equalizing shielding ring; the voltage-equalizing shielding ring is connected to the connecting plate.
[0006] In some embodiments, the voltage-equalizing shielding ring is detachably connected to the connecting plate.
[0007] In some embodiments, the nuclear power plant V-shaped suspension string structure further includes a plurality of wire clamp assemblies;
[0008] Each of the wire clamp assemblies comprises a second Z-shaped hanging plate and a wire clamp;
[0009] The wire clamp is connected to the connecting plate through the second Z-shaped hanging plate.
[0010] In some embodiments, the number of the wire clip assemblies is at least two.
[0011] In some embodiments, the clamp comprises a tension clamp.
[0012] In some embodiments, the V-shaped suspension string structure of the nuclear power plant further includes a heavy hammer connected to the connecting plate.
[0013] In some embodiments, the weight is detachably connected to the connecting plate.
[0014] In some embodiments, the length of the suspension insulator is 5800-6000 mm.
[0015] In some embodiments, the length of the suspension insulator is 5890 mm.
[0016] The implementation of the utility model has the following beneficial effects: the V-shaped suspension string structure of the nuclear power plant improves the typhoon resistance of the 500kV line lead-in line of the nuclear power plant, provides guarantee for the safe and stable operation of the line during the typhoon season, and avoids the hidden danger of line breakage caused by typhoons. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:
[0018] Figure 1 It is a structural schematic diagram of a V-shaped suspension string structure of a nuclear power plant in some embodiments of the utility model. DETAILED DESCRIPTION
[0019] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.
[0020] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0021] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.
[0022] See also Figure 1 The utility model shows a V-shaped suspension string structure of a nuclear power plant, which is suitable for the fixed connection of a 500kV outgoing line down conductor of a nuclear power plant.
[0023] The V-shaped suspension string structure of the nuclear power plant includes a connecting plate 10 and two suspension strings 20 distributed in a "V" shape. Each suspension string 20 includes a first U-shaped hanging ring 21, a second U-shaped hanging ring 22, a third U-shaped hanging ring 23, an extension ring 24, an adjustment plate 25, a first Z-shaped hanging plate 26, a ball head hanging ring 27, a suspension insulator 28, and a bowl head hanging plate 29.
[0024] Among them, the first end of the first U-shaped hanging ring 21 is used to connect with the cross arm of the iron tower, the second end of the first U-shaped hanging ring 21 is connected to the first end of the extension ring 24, the first end of the extension ring 24 is connected to the first end of the second U-shaped hanging ring 22, the second end of the second U-shaped hanging ring 22 is connected to the first end of the adjustment plate 25, the second end of the adjustment plate 25 is connected to the first end of the first Z-shaped hanging plate 26, the second end of the first Z-shaped hanging plate 26 is connected to the first end of the ball head hanging ring 27, the second end of the ball head hanging ring 27 is connected to the first end of the suspension insulator 28, the second end of the suspension insulator 28 is connected to the first end of the bowl head hanging plate 29, and the second end of the bowl head hanging plate 29 is connected to the connecting plate 10.
[0025] In some embodiments, the V-shaped suspension string structure of the nuclear power plant further includes a voltage-equalizing shielding ring 30; the voltage-equalizing shielding ring 30 is connected to the connecting plate 10, and the voltage-equalizing shielding ring 30 may be connected to the upper part of the connecting plate 10. Preferably, the voltage-equalizing shielding ring 30 is detachably connected to the connecting plate 10, for example, it may be connected and fixed by bolts and nuts.
[0026] In some embodiments, the V-shaped suspension string structure of the nuclear power plant further includes a plurality of wire clamp assemblies 40 ; each wire clamp assembly 40 includes a second Z-shaped hanging plate 41 and a wire clamp 42 ; the wire clamp 42 is connected to the connecting plate 10 via the second Z-shaped hanging plate 41 .
[0027] In some embodiments, the number of the wire clamp assemblies 40 is at least two, for example, the number of the wire clamp assemblies 40 can be two, three, four, five, etc. Preferably, the number of the wire clamp assemblies 40 is two, and the two wire clamp assemblies 40 can be substantially symmetrically arranged to achieve a force balance effect.
[0028] In some embodiments, the wire clamp 42 comprises a tension wire clamp, that is, the wire clamp 42 can be a tension wire clamp.
[0029] In some embodiments, the V-shaped suspension string structure of the nuclear power plant further includes a weight 50 connected to the connecting plate 10. The weight 50 is detachably connected to the connecting plate 10, for example, it can be fixed by threaded connection.
[0030] In some embodiments, the connecting plate 10 may be of model LB-3040.
[0031] In some embodiments, the length of each suspension string 20 may be approximately 6801-6871 mm.
[0032] In some embodiments, the first U-shaped hanging ring 21, the second U-shaped hanging ring 22, and the third U-shaped hanging ring 23 may be of model U-16.
[0033] In some embodiments, the extension ring 24 can be a PH-type hanging ring, such as the optional model PH-16.
[0034] In some embodiments, the adjustment plate 25 may be of model DT-16.
[0035] In some embodiments, the first Z-shaped hanging plate 26 and the second Z-shaped hanging plate 41 can be of model Z-16.
[0036] In some embodiments, the ball head hanging ring 27 can be selected as model QP-16.
[0037] In some embodiments, the suspension insulator 28 may be of model LXHY6-160, the minimum creepage distance of a single piece is not less than 550 mm, and the length of the suspension insulator 28 is 5800-6000 mm. Preferably, the length of the suspension insulator 28 is 5890 mm.
[0038] In some embodiments, the bowl head hanging plate 29 may be of model WS-16.
[0039] In some embodiments, the voltage-equalizing shielding ring 30 may be of model FJP-1300×1200.
[0040] In some embodiments, the weight 50 may be model ZC-18.
[0041] Understandably, when the wind is perpendicular to the outgoing line direction, the original design single suspension string has a wind deviation angle, and the V-shaped suspension string structure of the nuclear power plant in this application does not have a wind deviation angle; when the wind is along the outgoing line direction, the wind deviation angle of the V-shaped suspension string structure of the nuclear power plant in this application can be smaller than the wind deviation angle of the suspension string in the original design. From the perspective of wind deviation, the V-shaped suspension string structure of the nuclear power plant in this application is superior to the single-unit suspension string. The V-shaped suspension string structure of the nuclear power plant in this application improves the typhoon resistance and provides a guarantee for the safety and stability of the down conductor.
[0042] The V-shaped suspension string structure of the nuclear power plant of the present application improves the typhoon resistance of the 500kV line lead-in line of the nuclear power plant, provides guarantee for the safe and stable operation of the line during the typhoon season, and avoids the hidden danger of line breakage caused by typhoons.
[0043] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.
Claims
1. A V-shaped suspension string structure for a nuclear power plant, characterized in that: It comprises a connecting plate (10) and two suspension strings (20) arranged in a "V" shape, each of the suspension strings (20) comprising a first U-shaped hanging ring (21), a second U-shaped hanging ring (22), a third U-shaped hanging ring (23), an extension ring (24), an adjustment plate (25), a first Z-shaped hanging plate (26), a ball head hanging ring (27), a suspension insulator (28), and a bowl head hanging plate (29); The second end of the first U-shaped hanging ring (21) is connected to the first end of the extension ring (24), the first end of the extension ring (24) is connected to the first end of the second U-shaped hanging ring (22), the second end of the second U-shaped hanging ring (22) is connected to the first end of the adjustment plate (25), the second end of the adjustment plate (25) is connected to the first end of the first Z-shaped hanging plate (26), the second end of the first Z-shaped hanging plate (26) is connected to the first end of the ball head hanging ring (27), the second end of the ball head hanging ring (27) is connected to the first end of the suspension insulator (28), the second end of the suspension insulator (28) is connected to the first end of the bowl head hanging plate (29), and the second end of the bowl head hanging plate (29) is connected to the connecting plate (10).
2. The V-shaped suspension string structure of a nuclear power plant according to claim 1, characterized in that: The V-shaped suspended string structure of a nuclear power plant further comprises a voltage-equalizing shielding ring (30); the voltage-equalizing shielding ring (30) is connected to the connecting plate (10).
3. The V-shaped suspension string structure of a nuclear power plant according to claim 2, characterized in that: The voltage-equalizing shielding ring (30) is detachably connected to the connecting plate (10).
4. The V-shaped suspension string structure of a nuclear power plant according to claim 1, characterized in that: The V-shaped suspension string structure of the nuclear power plant further comprises a plurality of wire clamp assemblies (40); Each of the wire clamp assemblies (40) comprises a second Z-shaped hanging plate (41) and a wire clamp (42); The wire clamp (42) is connected to the connecting plate (10) via the second Z-shaped hanging plate (41).
5. The V-shaped suspension string structure of a nuclear power plant according to claim 4, characterized in that: The number of the wire clamp assemblies (40) is at least two.
6. The V-shaped suspension string structure of a nuclear power plant according to claim 4, characterized in that: The wire clamp (42) comprises a tension wire clamp.
7. The V-shaped suspension string structure of a nuclear power plant according to claim 1, characterized in that: The V-shaped suspension string structure of a nuclear power plant further comprises a weight (50) connected to the connecting plate (10).
8. The V-shaped suspension string structure of a nuclear power plant according to claim 7, characterized in that: The weight (50) is detachably connected to the connecting plate (10).
9. The V-shaped suspension string structure of a nuclear power plant according to claim 1, characterized in that: The length of the suspension insulator (28) is 5800-6000 mm.
10. The V-shaped suspension string structure of a nuclear power plant according to claim 1, characterized in that: The length of the suspension insulator (28) is 5890 mm.