A compensation amount monitoring device for GIS and GIL equipment bellows

Abstract

The utility model provides a kind of for GIS and GIL equipment bellows's compensation amount monitoring device, belong to GIS and GIL substation monitoring technical field, including support, laser emitter, reflector and sunshade;Laser emitter is set on first support, reflector is set on second support, the line of sight of laser emitter center and reflector center is parallel with the axis of bellows;Sunshade is columnar structure, and its both ends are respectively equipped with first connecting end and second connecting end, and the caliber of first connecting end is greater than second connecting end;First connecting end is fixedly connected in the emitting end of laser emitter, and second connecting end is connected to reflector.The utility model is low in cost and anti-interference, suitable for strong illumination, large temperature difference, more rain, snow and sand area, in monitoring GIS and GIL bellows compensation amount, 24 hours real-time continuous monitoring can be realized, greatly save manpower resource cost, and feedback exception to user in time, to avoid causing loss.

Description

Technical Field

[0001] This utility model belongs to the field of GIS and GIL substation monitoring technology, and more specifically, relates to a compensation monitoring device for the bellows of GIS and GIL equipment. Background Technology

[0002] GIS equipment is a compact power equipment that integrates high-voltage components such as circuit breakers and disconnectors into a metal casing filled with SF6 gas, and is widely used in modern power grids. GIL equipment is a gas-insulated metal-enclosed transmission line, and its corrugated pipe is used to compensate for expansion and contraction caused by foundation deformation, thermal expansion and contraction, etc. In current GIL UHVDC substations, the bellows compensation is mostly monitored using a ruler measurement method. A steel ruler is fixed at the flanges at both ends of the bellows of the GIL equipment. As the bellows expands and contracts, the vernier on the steel ruler will point to different scales. By reading the scale indicated by the vernier on the steel ruler, the compensation amount of the bellows can be determined.

[0003] However, the drawbacks of this monitoring method are also obvious. It cannot monitor the compensation amount of the corrugated pipe in real time, and reading the compensation amount of all the corrugated pipes in the substation takes a long time. In case of extreme weather, it is difficult to read the data on-site. In response, Chinese invention patent application with publication number CN117190897A and Chinese utility model patent with publication number CN220507962U both disclose a corrugated pipe deformation monitoring device for GIS equipment. Their common feature is that they monitor the corrugated pipe deformation in real time through high-precision laser ranging technology, and use a controller to filter the laser ranging data to improve accuracy. However, in some areas where substations are built, such as the northwest or central regions of my country, there is strong sunlight, large temperature difference, and frequent sandstorms, and external natural factors have a significant impact on the accuracy of laser ranging.

[0004] Therefore, how to design a high-precision, real-time, continuous monitoring system that can resist the influence of external natural factors is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a bellows compensation monitoring device for GIS and GIL equipment, thereby solving the technical problem that the existing technology cannot monitor the compensation of the bellows in real time, and it is difficult to read the data on site in case of extreme weather.

[0006] To achieve the above objectives, according to one aspect of the present invention, a compensation monitoring device for bellows in GIS and GIL equipment is provided, comprising: a bracket, a laser emitter, a reflector, and a light shield; The support includes a first support and a second support, which are symmetrically fixed to the flanges at both ends of the bellows. The laser emitter is mounted on the first support, the reflector is mounted on the second support, and the line connecting the center of the laser emitter and the center of the reflector is parallel to the axis of the corrugated pipe. The light shield is a columnar structure with a first connecting end and a second connecting end at each end, and the diameter of the first connecting end is larger than that of the second connecting end. The first connection end is fixedly connected to the emitting end of the laser emitter, and the second connection end is connected to the reflector.

[0007] Preferably, the emitting surface of the laser emitter is parallel to the reflective surface of the reflector.

[0008] Preferably, the light shield is a flexible light shield.

[0009] Preferably, the first connecting end of the light shield is welded to the emitting end of the laser emitter, and the second connecting end is fixedly disposed on the reflector.

[0010] Preferably, the light shield is a rigid light shield.

[0011] Preferably, the reflector has an arc-shaped through hole, the first connecting end of the light shield is welded to the emitting end of the laser emitter, and the second connecting end is disposed through the arc-shaped through hole.

[0012] Preferably, the first bracket and the second bracket are respectively fixed to the flange by bolts.

[0013] Preferably, the laser emitter is fixed to the first bracket by welding; the reflector is fixed to the second bracket by welding.

[0014] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects: This invention allows the device to be installed on a corrugated pipe by removing the bracket and bolts, thus avoiding damage to the original structure of the corrugated pipe device and achieving non-destructive installation; the use of a light shield reduces the impact of external natural factors on the accuracy of laser ranging; the device is battery powered and wirelessly connected, is independent, and has a small size; the laser ranging accuracy is high, and it can achieve millimeter-level measurement.

[0015] This invention is low in cost and resistant to interference, making it suitable for areas with strong sunlight, large temperature differences, and frequent rain, snow, and sandstorms. In terms of monitoring the compensation of GIS and GIL corrugated pipes, it can achieve 24-hour real-time continuous monitoring, greatly saving human resource costs, and providing timely feedback to users on anomalies to prevent losses. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of the bellows compensation monitoring device for GIS and GIL equipment according to this utility model.

[0017] Figure 2 This is an exploded view of the structure of the bellows compensation monitoring device for GIS and GIL equipment according to this utility model.

[0018] Figure 3 This is a front view of the bellows compensation monitoring device for GIS and GIL equipment according to this utility model.

[0019] Figure 4 This is a side view of the bellows compensation monitoring device for GIS and GIL equipment according to this utility model.

[0020] Figure 5 This is a top view of the bellows compensation monitoring device for GIS and GIL equipment according to this utility model.

[0021] Figure 6 This is a schematic diagram of the reflector structure of the bellows compensation monitoring device for GIS and GIL equipment according to this utility model.

[0022] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein: 1-bellows; 11-connecting column; 111-flange; 112-nut; 2-bracket; 21-bolt; 3-laser emitter; 4-reflector; 41-arc-shaped through hole; 5-sunshade. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] like Figure 1-6 As shown, this utility model proposes a bellows compensation monitoring device for GIS and GIL equipment. The bellows 1, whose compensation is to be monitored, has flanges 111 fitted at both ends. The flanges 111 have annular holes distributed along their centers. A connecting post 11 passes through the flanges 111 and surrounds the bellows 1, with the connecting post 11 parallel to the axis of the bellows 1. The connecting post 11 is fixed to the flanges 111 by nuts 112.

[0025] Specifically, the corrugated pipe compensation monitoring device includes a bracket 2, a laser emitter 3, a reflector 4, and a light shield 5. The bracket 2 includes a first bracket and a second bracket, which are respectively fixed to the flanges 111 at both ends of the corrugated pipe 1 by bolts 21.

[0026] To further clarify, the centers of the laser emitter 3 and the reflector 4 need to be on the same straight line, the line connecting the two centers is parallel to the axis of the corrugated pipe 1, and the reflective surface of the reflector 4 needs to be parallel to the emitting surface of the laser emitter 3. The laser emitter 3 and the reflector 4 are both fixed to the first bracket and the second bracket respectively by welding.

[0027] To further explain, the light shield 5 is a columnar structure with a first connecting end and a second connecting end at its two ends, and the diameter of the first connecting end is larger than the diameter of the second connecting end.

[0028] In one embodiment of this utility model, the light shield 5 is a rigid light shield, the first connecting end is connected and fixed to the laser emitter 3 by welding, and the second connecting end passes through the arc-shaped through hole 41 reserved in the reflector 4.

[0029] In another embodiment of this utility model, the light shield 5 is a flexible light shield, and the first connecting end is still connected and fixed to the laser emitter 3 by welding. In this case, there is no need to reserve an arc-shaped through hole at the reflector 4, and the second connecting end of the flexible light shield can be directly fixed to the reflector 4.

[0030] The working process of this utility model is as follows: The first bracket and the second bracket are fixed to the two flanges of the same corrugated pipe 1 by bolts 21 to ensure that the top surfaces of the two brackets are on the same plane. Then, the laser emitter 3 and the reflector 4 are fixed to the two brackets by welding to ensure that the centers of the laser emitter 3 and the reflector 4 are on the same straight line and parallel to the axis of the corrugated pipe 1. Finally, the light shield 5 is set up between the laser emitter 3 and the reflector 4.

[0031] If the light shield 5 is a rigid light shield, when the bellows deforms, the laser emitter 3 and the light-emitting sheet 4 will be displaced accordingly. Since the rigid light shield passes through the arc-shaped through hole reserved by the reflector, the rigid light shield will slide relative to the arc-shaped through hole, which can reflect the change in the compensation amount of the bellows in time.

[0032] If the light shield 5 is a flexible light shield, the light shield will automatically deform according to the expansion and contraction of the corrugated pipe, which can also accurately reflect the change in the compensation amount of the corrugated pipe.

[0033] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compensation quantity monitoring device for bellows in GIS and GIL equipment, characterized in that, include: Support (2), laser emitter (3), reflector (4) and light shield (5); The bracket (2) includes a first bracket and a second bracket, which are symmetrically fixed to the flanges (111) at both ends of the bellows (1); The laser emitter (3) is mounted on the first support, and the reflector (4) is mounted on the second support. The line connecting the center of the laser emitter (3) and the center of the reflector (4) is parallel to the axis of the corrugated pipe (1). The light shield (5) is a columnar structure with a first connecting end and a second connecting end at its two ends, respectively. The diameter of the first connecting end is larger than the diameter of the second connecting end. The first connection end is fixedly connected to the emitting end of the laser emitter (3), and the second connection end is connected to the reflector (4).

2. The compensation monitoring device for bellows in GIS and GIL equipment according to claim 1, characterized in that, The emitting surface of the laser emitter (3) is parallel to the reflective surface of the reflector (4).

3. The compensation monitoring device for bellows in GIS and GIL equipment according to claim 1, characterized in that, The light shield (5) is a flexible light shield.

4. A compensation monitoring device for bellows in GIS and GIL equipment according to claim 3, characterized in that, The first connecting end of the light shield (5) is welded to the emitting end of the laser emitter (3), and the second connecting end is fixedly disposed on the reflector (4).

5. A compensation monitoring device for bellows in GIS and GIL equipment according to claim 1, characterized in that, The light shield (5) is a rigid light shield.

6. A compensation monitoring device for bellows in GIS and GIL equipment according to claim 5, characterized in that, The reflector (4) is provided with an arc-shaped through hole (41), the first connecting end of the light shield (5) is welded to the emitting end of the laser emitter (3), and the second connecting end is provided through the arc-shaped through hole (41).

7. A compensation monitoring device for bellows in GIS and GIL equipment according to claim 1, characterized in that, The first bracket and the second bracket are respectively fixed to the flange (111) by bolts (21).

8. A compensation monitoring device for bellows in GIS and GIL equipment according to claim 1, characterized in that, The laser emitter (3) is fixed to the first bracket by welding; the reflector (4) is fixed to the second bracket by welding.

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