GIS rainproof device capable of being rapidly installed without power failure

Abstract

The utility model relates to the technical field of GIS (gas insulated switchgear) rainproof devices, in particular to a GIS rainproof device capable of being quickly mounted without power failure. The GIS rainproof device comprises a first rainproof cover; the second rain covers are arranged on the two sides of the first rain cover, and limiting sliding structures are arranged between the first rain cover and the second rain covers; the ventilation and drainage structure comprises a ventilation cap arranged on the first rain cover, a ventilation pipe is arranged in the ventilation cap, the ventilation pipe is fixedly connected with the first rain cover, and a ventilation opening matched with the ventilation pipe is formed in the first rain cover. According to the GIS rainproof device, through the arrangement of the first rainproof cover and the second rainproof cover, the GIS flange butt joint face can be effectively protected, the outdoor GIS corrosion speed is effectively reduced, the insulation basin is fully protected, the maintenance work efficiency is improved, meanwhile, the power supply reliability is enhanced, and the problems of power failure transformation and long construction period in traditional rainproof transformation are successfully solved.

Description

Technical Field

[0001] The utility model relates to the technical field of GIS rainproof devices, and more specifically, to a GIS rainproof device which can be quickly installed without power outage. Background Art

[0002] GIS is a gas-insulated combined electrical equipment, which consists of circuit breakers, disconnectors, grounding switches, mutual inductors, lightning arresters, busbars, connectors and outgoing terminals. These devices or components are all enclosed in a metal grounded casing, which is filled with SF6 gas with excellent insulation and arc extinguishing properties as an insulating and arc extinguishing medium, so it is also called SF6 fully enclosed combined electrical equipment. GIS was originally designed for indoor scenes. With the widespread application of GIS in China, a large number of outdoor substations have also begun to use GIS. The operating environment of outdoor GIS determines that it is susceptible to weather changes. According to statistics, in the company's maintenance work in recent years, up to 95% of the maintenance objects are outdoor GIS. In addition, in the past five years, abnormal GIS discharge accidents caused by rainwater freezing accounted for 65%.

[0003] There are two main solutions for the rain protection problem faced by outdoor GIS: indoor transformation and installation of rain shelter. Although both solutions can effectively solve the rain protection problem of GIS flange joint surface, both require power outage for transformation. During the transformation, all GIS of the corresponding voltage level of the substation must be shut down, and the power outage time is relatively long. Taking a medium-sized 220kV outdoor substation as an example, the construction of its outdoor GIS rain shelter requires a power outage of up to 30 days.

[0004] Secondly, outdoor GIS is affected by rain, and the screw holes and bolts at the flange of the docking surface are prone to water ingress and rust. If the rust further spreads to the inside of the GIS, its sealing performance will be reduced, resulting in equipment leakage and reduced insulation. Especially in the cold winter, the temperature difference between day and night is large, and rainwater freezes at the docking surface. After the ice expands, it will squeeze the insulating basin, causing the basin to crack and flashover breakdown. Therefore, the rain protection problem of outdoor GIS has become a difficult problem that needs to be solved urgently. Utility Model Content

[0005] The purpose of the utility model is to provide a GIS rainproof device with simple structure, reasonable design, no power outage and quick installation in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A GIS rainproof device that can be quickly installed without power outage, comprising:

[0008] First rain cover;

[0009] A second rain cover is provided on both sides of the first rain cover, and a limited sliding structure is provided between the first rain cover and the second rain cover;

[0010] The ventilation and drainage structure includes a ventilation cap arranged on the first rain cover, and a ventilation pipe is arranged in the ventilation cap, the ventilation pipe is fixedly connected to the first rain cover, and a ventilation hole matched with the ventilation pipe is opened on the first rain cover.

[0011] As a further optimization solution of the utility model, the two sides of the ventilation hood are arranged at an angle, a plurality of supporting feet are installed in the ventilation hood, and the supporting feet are connected to the ventilation pipe.

[0012] As a further optimization solution of the present invention, the top end of the ventilation pipe extends to the inside of the ventilation hood, and the height of the top end of the ventilation pipe is higher than the height of the bottom end of the ventilation hood.

[0013] As a further optimization solution of the present invention, a drainage gap is formed at one end of the bottom of the second rain cover that is close to the other end.

[0014] As a further optimization scheme of the utility model, the limited sliding structure includes a plurality of blocks slidably connected to the inside of the second rain cover, and nuts are installed on the blocks, a screw is threadedly connected to the nut, and a rubber pad is glued to one end of the screw.

[0015] As a further optimization solution of the utility model, a plurality of slide grooves are provided in the first rainproof cover, and the positions of the plurality of slide grooves correspond one to one to the positions of the clamping blocks, and the slide grooves are slidably connected to the clamping blocks.

[0016] As a further optimization solution of the utility model, a spring is provided on the clamping block, and one end of the spring is fixedly connected to the second rain cover, and the other end of the spring is fixedly connected to the clamping block.

[0017] The beneficial effect of the utility model is that the GIS rainproof device can effectively protect the GIS flange joint surface through the arrangement of the first rainproof cover and the second rainproof cover, effectively reduce the rust rate of outdoor GIS, fully protect the insulating basin, improve the maintenance efficiency, and enhance the power supply reliability, successfully solving the problems of power outage transformation and long construction period in traditional rainproof transformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a first-view stereogram of the overall structure of the utility model;

[0019] Figure 2 It is a second perspective stereogram of the overall structure of the utility model;

[0020] Figure 3It is a partial top view of the structure section of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the limiting structure of the utility model.

[0022] In the figure: 1. first rain cover; 2. second rain cover; 3. ventilation cap; 4. ventilation pipe; 5. ventilation port; 6. slide groove; 7. block; 8. nut; 9. screw rod; 10. rubber pad; 11. spring. DETAILED DESCRIPTION

[0023] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0024] Please refer to the attached Figure 1 and attached Figure 2 A GIS rainproof device that can be quickly installed without power outage includes a first rainproof cover 1 and a second rainproof cover 2. The second rainproof cover 2 is arranged on both sides of the first rainproof cover 1. The first rainproof cover 1 and the second rainproof cover 2 are made of metal, and the metal material is preferably stainless steel. Among them, the use of stainless steel can make the first rainproof cover 1 and the second rainproof cover 2 have higher strength, good stability, and easy processing.

[0025] Specifically, the first rain cover 1 and the second rain cover 2 are designed with arc-shaped surfaces, which improves drainage and ventilation.

[0026] The ventilation and drainage structure includes a ventilation cap 3 arranged on the first rain cover 1, and a ventilation pipe 4 is arranged in the ventilation cap 3, the two sides of the ventilation cap 3 are arranged at an angle, a plurality of supporting feet are installed in the ventilation cap 3, and the supporting feet are connected to the ventilation pipe 4, the ventilation pipe 4 is fixedly connected to the first rain cover 1, and a ventilation hole 5 adapted to the ventilation pipe 4 is opened on the first rain cover 1. In this embodiment, the arrangement of the ventilation cap 3 and the ventilation pipe 4 facilitates the ventilation of the interior of the first rain cover 1, and at the same time, prevents the entry of rainwater, thereby improving the ventilation and heat dissipation properties of the equipment.

[0027] Furthermore, the top end of the ventilation pipe 4 extends to the inside of the ventilation hood 3, and the top end height of the ventilation pipe 4 is higher than the bottom end height of the ventilation hood 3. In this embodiment, the ventilation pipe 4 extends to the inside of the ventilation hood 3, making it difficult for external rainwater to enter, thereby achieving waterproof treatment of the ventilation area.

[0028] Optionally, in order to prevent the accumulated water from being unable to be discharged when water enters the first rain cover 1 and the second rain cover 2, in the present embodiment, a drainage gap is formed at one end of the bottom of the second rain cover 2 that is close to each other, so that rainwater that enters the first rain cover 1 and the second rain cover 2 or accumulated water caused by humid air can be discharged, and ventilation and heat dissipation of the equipment are also facilitated.

[0029] Please refer to the attached Figure 2 , Attachment Figure 3 and attached Figure 4 Optionally, in order to facilitate on-site construction, the first rain cover 1 and the second rain cover 2 are quickly spliced ​​and installed, and a limited sliding structure is provided between the first rain cover 1 and the second rain cover 2; in this embodiment, the limited sliding structure includes a plurality of blocks 7 slidably connected to the inside of the second rain cover 2, a spring 11 is provided on the block 7, and one end of the spring 11 is fixedly connected to the second rain cover 2, the other end of the spring 11 is fixedly connected to the block 7, and a nut 8 is installed on the block 7, a screw 9 is threadedly connected to the nut 8, and a rubber pad 10 is glued to one end of the screw 9. Among them, the rubber pad 10 can make the first rain cover 1 and the second rain cover 2 both stable in stormy weather and under the vibration of the circuit breaker opening and closing.

[0030] Specifically, a bayonet that matches the clamping block 7 is provided on the first rain cover 1. When the second rain cover 2 is pulled out from the first rain cover 1, the clamping block 7 is plugged into the bayonet, so that the first rain cover 1 and the second rain cover 2 are connected and fixed.

[0031] Furthermore, a plurality of slide grooves 6 are provided in the first rain cover 1, and the positions of the plurality of slide grooves 6 and the blocks 7 correspond one to one, and the slide grooves 6 and the blocks 7 are slidably connected. The setting of the slide grooves 6 facilitates the movement of the blocks 7 in the slide grooves 6, and when the second rain cover 2 needs to be reset, the screw rod 9 is rotated to release the limit on the screw rod 9 and the GIS flange joint surface, and the block 7 is pressed to make the spring 11 produce elastic deformation, so that the block 7 shrinks into the second rain cover 2, and then the second rain cover 2 is moved, so that the first rain cover 1 can be removed from the GIS flange joint surface.

[0032] It should be noted that when installing the first rain cover 1 and the second rain cover 2 to the GIS flange joint surface, the first rain cover 1 is placed on the GIS flange joint surface, and the second rain cover 2 is pulled out from the inside of the first rain cover 1, and the block 7 quickly rebounds under the action of the spring 11, so that the block 7 is engaged and connected with the bayonet on the first rain cover 1, and the splicing between the first rain cover 1 and the second rain cover 2 is completed. Subsequently, the construction personnel use a hexagonal wrench to rotate the screw 9, so that the screw 9 drives the rubber pad 10 to move, so that the rubber pad 10 contacts the outer wall of the GIS flange joint surface, and the first rain cover 1 and the second rain cover 2 are fixed.

[0033] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are within the protection of the present embodiment.

Claims

1. A GIS rainproof device that can be installed quickly without power outage, characterized in that: include: A first rain cover (1); A second rain cover (2) is arranged on both sides of the first rain cover (1), and a position-limiting sliding structure is arranged between the first rain cover (1) and the second rain cover (2); A ventilation and drainage structure, the ventilation and drainage structure comprising a ventilation cap (3) arranged on the first rain cover (1), a ventilation pipe (4) being arranged inside the ventilation cap (3), the ventilation pipe (4) being fixedly connected to the first rain cover (1), and a ventilation opening (5) matching the ventilation pipe (4) being opened on the first rain cover (1).

2. The GIS rainproof device that can be quickly installed without power outage according to claim 1 is characterized in that: The two sides of the ventilation cap (3) are arranged at an angle, and a plurality of supporting feet are installed in the ventilation cap (3), and the supporting feet are connected to the ventilation pipe (4).

3. The GIS rainproof device that can be quickly installed without power outage according to claim 1 is characterized in that: The top end of the ventilation pipe (4) extends to the inside of the ventilation cap (3), and the height of the top end of the ventilation pipe (4) is higher than the height of the bottom end of the ventilation cap (3).

4. The GIS rainproof device that can be quickly installed without power outage according to claim 1 is characterized in that: The bottom of the second rain cover (2) is close to one end to form a drainage gap.

5. The GIS rainproof device that can be quickly installed without power outage according to claim 1 is characterized in that: The limited sliding structure comprises a plurality of clamping blocks (7) slidably connected to the inside of the second rainproof cover (2), and a nut (8) is installed on the clamping block (7), a screw rod (9) is threadedly connected to the nut (8), and a rubber pad (10) is glued to one end of the screw rod (9).

6. The GIS rainproof device that can be quickly installed without power outage according to claim 5 is characterized in that: A plurality of slide grooves (6) are provided in the first rain cover (1), and the positions of the plurality of slide grooves (6) and the clamping blocks (7) correspond one to one, and the slide grooves (6) and the clamping blocks (7) are slidably connected.

7. The GIS rainproof device that can be quickly installed without power outage according to claim 5 is characterized in that: The clamping block (7) is provided with a spring (11), one end of the spring (11) is fixedly connected to the second rain cover (2), and the other end of the spring (11) is fixedly connected to the clamping block (7).

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