Leaking stoppage device for connecting pipe of GIS equipment of offshore wind power project

Abstract

The utility model belongs to the technical field of offshore wind power, and particularly relates to an offshore wind power project GIS equipment connecting pipe plugging device which comprises a sealing assembly and a plugging assembly, the sealing assembly comprises a lower shell and an upper shell, and the lower shell and the upper shell are provided with sealing strips and fixing holes. The two ends of a leakage point of the connecting pipe can be sealed through the sealing assembly, so that the sealing assembly seals the sealing point, then insulating liquid is injected into the sealing assembly through the liquid inlet, when gas in the connecting pipe leaks, bubbles can be generated, the leakage position can be rapidly determined according to the positions of the bubbles, and the sealing effect is improved. The sealing assembly is adjusted to be loosened so that the sealing assembly can move, the plugging assembly can move to the leakage position, a thread is rotated to drive a rotating seat to descend, finally, a plugging block conducts pressurized plugging on a leakage point, and compared with the prior art, the plugging efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore wind power, in particular to a leakage plugging device for connecting pipes of GIS equipment in an offshore wind power project. Background Art

[0002] To ensure the safe and reliable operation of offshore wind power equipment, offshore wind power equipment needs regular inspection and maintenance. However, due to long-term exposure to the external environment, GIS equipment will be exposed to wind and rain, which will cause corrosion of the GIS equipment connection pipe and cause SF6 gas leakage. This kind of leakage is often small and the leakage speed is slow, but GIS equipment generally has a pressure warning range. When the pressure value is lower than the rated value, the SF6 gas chamber has an alarm value and a lockout value. Once there is a leak, the SF6 gas pressure will be insufficient, causing the GIS equipment gas chamber pressure alarm or even lockout. The occurrence of gas chamber alarm and lockout will affect the operation of the entire line, causing line fault tripping and even substation equipment accidents. The traditional treatment method can only perform emergency power outages on the relevant lines, and repair or replace the leaking parts after the power outage. The dismantling process of GIS equipment is complicated. Since GIS equipment is closely arranged, adjacent intervals need to cooperate in power outages. Moreover, the dismantling of GIS equipment has high requirements on the environment. It cannot be dismantled in windy, rainy or snowy weather. Moreover, the reassembly after dismantling requires the air chamber to be inflated, stationary, and high-voltage electrical tests. The whole process is time-consuming and laborious. Therefore, a temporary leak plugging device is needed to plug the leakage of the connecting pipe in time to avoid unnecessary power outages.

[0003] Application No. CN201721087543.7 in the prior art discloses a GIS equipment connecting pipe plugging device, which can be used to plug leaks in GIS equipment connecting pipes in substations. The device includes a plugging device, an observation device, and insulating oil. The plugging device is mainly composed of a sealing rubber pad, a hard rubber pad, and a ferrule. The observation device is sleeved on the outside of the plugging device, generally made of transparent insulating material, and is equipped with a respirator and an oil filling and discharge hole. When the insulating oil is injected, it can be observed whether there is bubbling, so as to infer whether the plugging is successful. The leak-proof device solves the equipment defects caused by air leakage in the GIS equipment connecting pipe, avoids unnecessary emergency power outages, temporarily plugs the leak at the leaking position, and then handles it when the equipment is shut down, avoiding unnecessary power outages. The leaking GIS connecting pipe is sealed with a sealing rubber pad in conjunction with a ferrule. However, the leak point is difficult to determine during actual use. Therefore, the above-mentioned GIS equipment connecting pipe leak-proof device needs to confirm the leak point before use before sealing. The sealing efficiency is low, so it needs to be improved. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems existing in the existing leakage plugging device for connecting pipes of GIS equipment in offshore wind power projects, the utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a leak plugging device for the connecting pipe of the GIS equipment of an offshore wind power project. The two ends of the leakage point of the connecting pipe can be sealed by the sealing component, so that the sealing component seals the sealing point, and then the insulating liquid is injected into the sealing component from the liquid inlet. When the gas in the connecting pipe leaks, bubbles will be generated. The leakage position can be quickly determined according to the position of the bubbles. The sealing component is adjusted to be loose so that it can be moved, and the plugging component is moved to the leakage position. The rotating thread drives the rotating seat to descend, and finally the plugging block pressurizes and plugs the leakage point, which greatly increases the plugging efficiency compared with the existing technology.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A leakage plugging device for connecting pipes of GIS equipment in offshore wind power projects, comprising a sealing component and a plugging component;

[0009] The sealing assembly includes a lower shell and an upper shell, sealing strips and fixing holes are installed on the lower shell and the upper shell, fixing bolts are threaded in the fixing holes, a one-way valve and a blocking assembly are installed on the top of the upper shell, a liquid inlet is installed on the top of the one-way valve, the blocking assembly includes a rotating disk, a threaded rod is installed below the rotating disk, a rotating seat is installed below the threaded rod, and a blocking block is installed below the rotating seat.

[0010] As a preferred solution of the leakage plugging device for connecting pipes of GIS equipment in offshore wind power projects described in the utility model, a groove is provided on the side where the lower shell and the upper shell contact, and a sealing strip is installed in the groove.

[0011] As a preferred solution of the leakage plugging device for connecting pipes of GIS equipment in offshore wind power projects described in the utility model, the bottom of the one-way valve is connected to the inner cavity of the upper shell, and the top is connected to the liquid inlet.

[0012] As a preferred solution of the leakage plugging device for connecting pipes of GIS equipment in offshore wind power projects described in the utility model, the plugging assembly also includes a rotating handle, which is evenly distributed around the rotating disk and fixedly connected to the rotating disk.

[0013] As a preferred solution of the leakage plugging device for connecting pipes of GIS equipment in offshore wind power projects described in the utility model, the threaded rod pipe penetrates the upper shell and is threadedly connected to the upper shell.

[0014] As a preferred solution of the leakage plugging device for connecting pipes of GIS equipment in offshore wind power projects described in the utility model, the bottom of the threaded rod is rotatably connected to a rotating seat, and the rotating seat is fixedly connected to a plugging block.

[0015] As a preferred solution of the leakage plugging device for connecting pipes of GIS equipment in offshore wind power projects described in the utility model, the upper shell and the lower shell are both made of transparent materials.

[0016] Compared with the prior art, the beneficial effect of the utility model is that the two ends of the leakage point of the connecting pipe can be closed by the sealing component, so that the sealing component can seal the sealing point, and then insulating liquid is injected into the sealing component from the liquid inlet. When the gas in the connecting pipe leaks, bubbles will be generated. The leakage position can be quickly determined according to the position of the bubbles, and the sealing component is adjusted to be loose so that it can be moved, so that the plugging component is moved to the leakage position, and the rotating thread is rotated to drive the rotating seat to descend, and finally the sealing block pressurizes and plugs the leakage point, which greatly increases the plugging efficiency compared with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the lower shell of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the upper shell of the utility model;

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

[0022] In the figure; 100 sealing assembly, 110 lower shell, 120 upper shell, 130 sealing strip, 140 fixing hole, 150 fixing bolt, 160 one-way valve, 170 liquid inlet, 200 blocking assembly, 210 rotating disk, 220 rotating handle, 230 threaded rod, 240 rotating seat, 250 blocking block. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0025] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The utility model provides the following technical solutions: a plugging device for connecting pipes of GIS equipment in offshore wind power projects. During use, the rotating thread drives the rotating seat to descend, and finally the plugging block pressurizes and plugs the leakage point, which greatly increases the plugging efficiency compared with the existing technology;

[0028] Figure 1-Figure 4 The structure diagram of the first embodiment of the utility model of a GIS equipment connection pipe plugging device for an offshore wind power project is shown. Figure 1-Figure 4 , a leakage plugging device for connecting pipes of GIS equipment in an offshore wind power project in this embodiment, the main part of which includes a sealing component 100 and a plugging component 200;

[0029] The sealing assembly 100 includes a lower shell 110 and an upper shell 120, a sealing strip 130 and a fixing hole 140 are installed on the lower shell 110 and the upper shell 120, a fixing bolt 150 is screwed in the fixing hole 140, a check valve 160 and a plugging assembly 200 are installed on the top of the upper shell 120, a liquid inlet 170 is installed on the top of the check valve 160, a groove is opened on the side where the lower shell 110 and the upper shell 120 contact, and the sealing strip 130 is installed in the groove, the bottom of the check valve 160 is communicated with the inner cavity of the upper shell 120, and the top is communicated with the liquid inlet 170, the upper shell 120 and the lower shell 110 are connected. 0 are made of transparent materials. The sealing assembly 100 is used to seal the two ends of the connecting pipe at the leakage point. Specifically, it is composed of a lower shell 110 and an upper shell 120. The upper shell 120 and the lower shell 110 are connected and the opening is provided with a sealing strip 130 to improve the sealing performance of the sealing assembly 100. The fixing bolt 150 is used to fix the lower shell 110 and the upper shell 120. The one-way valve 160 is used to carry the liquid inlet 170. The liquid inlet 170 is used to inject insulating liquid into the sealing assembly 100. By injecting insulation into the sealing assembly 100, the leakage point of the connecting pipe can be quickly determined.

[0030] The plugging assembly 200 includes a rotating disk 210, a threaded rod 230 is installed below the rotating disk 210, a rotating seat 240 is installed below the threaded rod 230, and a blocking block 250 is installed below the rotating seat 240. The plugging assembly 200 also includes a rotating handle 220, which is evenly distributed around the rotating disk 210 and is fixedly connected to the rotating disk 210. The threaded rod 230 passes through the upper shell 120 and is screwed to the upper shell 120. The bottom of the threaded rod 230 is rotatably connected to the rotating seat 240. The rotating seat 240 is fixedly connected to the upper shell 120. 0 is fixedly connected to the blocking block 250. The blocking assembly 200 is used to pressurize and block the leakage point after determining the leakage point of the connecting pipe to prevent it from continuing to leak. The rotating disk 210 is used to carry the rotating handle 220 and the threaded rod 230. The rotating handle 220 is used to drive the rotating disk 210 to rotate. When the rotating disk 210 rotates, it drives the threaded rod 230 to rotate. When the threaded rod 230 rotates, it drives the rotating seat 240 to move up and down. When the rotating seat 240 moves downward, it drives the blocking block 250 to move downward, so as to achieve pressurization and blocking of the leakage point.

[0031] Combination Figure 1-Figure 4The present embodiment is a leakage plugging device for connecting pipes of GIS equipment in offshore wind power projects. The specific working principle is as follows: the two ends of the leakage point of the connecting pipe can be sealed by the sealing component 100, so that the sealing component 100 seals the sealing point, and then the insulating liquid is injected into the sealing component 100 through the liquid inlet 170. When the gas in the connecting pipe leaks, bubbles will be generated. The leakage position can be quickly determined according to the position of the bubbles. The sealing component 100 is adjusted to be loose so that it can be moved, and the plugging component 200 is moved to the leakage position. The rotating thread drives the rotating seat 240 to descend, and finally the plugging block 250 pressurizes and plugs the leakage point, which greatly increases the plugging efficiency compared with the existing technology.

[0032] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A device for plugging leakage of connecting pipes of GIS equipment in offshore wind power projects, characterized in that: It comprises a sealing component (100) and a plugging component (200); The sealing assembly (100) comprises a lower shell (110) and an upper shell (120), wherein a sealing strip (130) and a fixing hole (140) are installed on the lower shell (110) and the upper shell (120), wherein a fixing bolt (150) is threadedly connected in the fixing hole (140), wherein a one-way valve (160) and a blocking assembly (200) are installed on the top of the upper shell (120), wherein a liquid inlet (170) is installed on the top of the one-way valve (160), wherein the blocking assembly (200) comprises a rotating disk (210), wherein a threaded rod (230) is installed below the rotating disk (210), wherein a rotating seat (240) is installed below the threaded rod (230), and wherein a blocking block (250) is installed below the rotating seat (240).

2. According to claim 1, a leakage plugging device for connecting pipes of GIS equipment in offshore wind power projects, characterized in that: A groove is provided on the side where the lower shell (110) and the upper shell (120) contact each other, and a sealing strip (130) is installed in the groove.

3. The device for plugging leakage of connecting pipes of GIS equipment in offshore wind power projects according to claim 1 is characterized in that: The bottom of the one-way valve (160) is in communication with the inner cavity of the upper shell (120), and the top is in communication with the liquid inlet (170).

4. The device for plugging leakage of connecting pipes of GIS equipment in offshore wind power projects according to claim 1 is characterized in that: The blocking assembly (200) further comprises a rotating handle (220), wherein the rotating handle (220) is evenly distributed around the rotating disk (210) and is fixedly connected to the rotating disk (210).

5. The device for plugging leakage of connecting pipes of GIS equipment in offshore wind power projects according to claim 1 is characterized in that: The threaded rod (230) tube passes through the upper shell (120) and is threadedly connected to the upper shell (120).

6. The device for plugging leakage of connecting pipes of GIS equipment in offshore wind power projects according to claim 1, characterized in that: The bottom of the threaded rod (230) is rotatably connected to the rotating seat (240), and the rotating seat (240) is fixedly connected to the blocking block (250).

7. The device for plugging leakage of connecting pipes of GIS equipment in offshore wind power projects according to claim 1, characterized in that: The upper shell (120) and the lower shell (110) are both made of transparent material.

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