Leakage monitoring device for a hydroelectric power plant

Abstract

This utility model discloses a leakage monitoring device for hydroelectric power generation equipment, including a monitoring body. One end of the monitoring body has a connecting seat, a power socket, and an audible and visual alarm. A gas sensor is installed inside the connecting seat, and a telescopic tube is installed at one end of the connecting seat, with a protective cylinder at the other end. This utility model achieves rapid engagement between the protective cylinder and the fixed plate by pulling a connecting rod to move a sliding ring and a connecting arm, causing the locking block to radially retract or extend. This eliminates the need for individual screw assembly, saving installation time compared to flange connections. The sealing block and sealing groove slide together, serving as both a guide and limiter for the sliding of the connecting rod and preventing gas leakage. After installation, the screws further strengthen the fixing and limit, ensuring a stable internal environment for the equipment. This design combines ease of installation with reliable sealing, reducing assembly difficulty and maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of leakage monitoring technology, specifically a leakage monitoring device for hydroelectric power generation equipment. Background Technology

[0002] Hydropower equipment is a general term for mechanical, electrical, and auxiliary equipment that converts water energy into electrical energy. It mainly utilizes the kinetic energy of water flow to drive the rotation of a turbine, which then converts the mechanical energy into electrical energy through a generator. Sulfur hexafluoride gas leak detectors are widely used in high-voltage switches, transformers, and other equipment in hydropower generation. As an insulating and arc-extinguishing medium, they can quickly scan from a safe distance to accurately locate leaks. They also have high sensitivity, capable of detecting extremely small leaks, and can accurately measure temperature, which helps to detect temperature differences and improve the visual contrast of gas leak detection.

[0003] According to announcement number CN216449106U, an angle-adjustable sulfur hexafluoride gas leak detector includes a leak detector body, a mounting bracket, a power interface, an audible and visual alarm, and a display screen mounted on the leak detector body. Its features also include a connecting base mounted on the leak detector body, a telescopic structure mounted on the connecting base, a protective cylinder mounted on the telescopic structure, and a gas sensor mounted inside the protective cylinder and electrically connected to the leak detector body. The protective cylinder is equipped with an automatic dust removal device. This invention improves detection efficiency and sensitivity by adjusting the angle of the gas sensor, and extends the service life of the leak detector through the dustproof net.

[0004] The above-mentioned device improves detection efficiency and sensitivity by adjusting the angle of the gas sensor. According to the instruction manual and the attached drawings, the flexible telescopic tube and the protective cylinder are connected and fixed by a flange. However, the flange usually requires multiple sets of screws for tightening, which is time-consuming to install. Utility Model Content

[0005] The purpose of this invention is to address the problem that, in order to improve the detection efficiency and sensitivity of the aforementioned device by adjusting the angle of the gas sensor, the flexible telescopic tube and the protective cylinder are connected and fixed by a flange, as described in the specification and accompanying drawings. However, the flange usually requires multiple sets of screws for tightening, which is time-consuming. Therefore, this invention provides a leakage monitoring device for hydroelectric power generation equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a leakage monitoring device for hydropower equipment, comprising a monitoring body, a connecting seat at one end of the monitoring body, a power socket at one end of the monitoring body, an audible and visual alarm at one end of the monitoring body, a gas sensor inside the connecting seat, a telescopic tube at one end of the connecting seat, and a protective cylinder at one end of the telescopic tube, a fixed plate fixedly installed at one end of the telescopic tube, slots evenly arranged around the inside of the fixed plate, a chuck fixedly installed at one end of the protective cylinder, and a chuck block evenly slidably connected around the chuck, a sliding ring slidably connected inside the protective cylinder, a groove at one end of both the sliding ring and the chuck block, and a connecting arm rotatably connected between the two sets of grooves, a sliding groove at the top of the protective cylinder, and a connecting rod slidably connected inside the sliding groove, the connecting rod passing through the sliding groove and fixedly installed with the sliding ring.

[0007] As a further improvement of this utility model: a sealing groove is provided inside the sliding groove, and a sealing block is fixedly installed at one end of the connecting rod, and the sealing block is slidably connected to the sealing groove.

[0008] As a further improvement of this utility model: both the sealing block and the sealing groove have threaded holes at one end, and the threaded holes are threadedly connected to a limiting screw.

[0009] As a further embodiment of this utility model: a sealing block two is fixedly installed at one end of the protective cylinder, and a sealing groove two is opened at one end of the fixed plate, and the sealing groove two is adapted to the sealing block two.

[0010] As a further improvement of this utility model: a mounting bracket is fixedly installed at the bottom of the monitoring body, and the mounting bracket is symmetrically fixedly installed at the bottom of the monitoring body.

[0011] As a further embodiment of this utility model: a dustproof net is fixedly installed inside the protective cylinder, a support column is fixedly installed inside the protective cylinder, a micro motor is fixedly installed at one end of the support column, and a dust removal brush is fixedly installed through the output shaft of the micro motor through the support column.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention uses a pulling rod to move the sliding ring and connecting arm, causing the locking block to retract or extend radially, thus achieving rapid engagement between the protective cylinder and the fixed plate. This eliminates the need for individual screw assembly, saving installation time compared to flange connections. The sealing block and sealing groove slide together, serving as both guides and limits for the sliding of the connecting rod and preventing gas leakage. After installation, the screws further strengthen the fixing and limit, ensuring a stable internal environment for the equipment. This design combines ease of installation with reliable sealing, reducing assembly difficulty and maintenance costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the unfolded structure of the telescopic tube and the protective cylinder in this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the protective cylinder in this utility model;

[0017] Figure 4 This is a cross-sectional structural diagram of the protective cylinder in this utility model;

[0018] Figure 5 This is a utility model Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Monitoring unit; 2. Connecting base; 3. Power socket; 4. Audible and visual alarm; 5. Gas sensor; 6. Telescopic tube; 7. Protective cylinder; 8. Fixing plate; 9. Slot; 10. Chuck; 11. Block; 12. Sliding ring; 13. Groove; 14. Connecting arm; 15. Slide groove; 16. Connecting rod; 17. Sealing block one; 18. Sealing groove one; 19. Threaded hole; 20. Screw; 21. Sealing block two; 22. Sealing groove two; 23. Mounting bracket; 24. Dustproof net; 25. Support column; 26. Dust removal brush; 27. Miniature motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0022] Reference Figures 1 to 5 In this embodiment of the utility model, a leakage monitoring device for hydropower equipment includes a monitoring body 1, a connecting seat 2 at one end of the monitoring body 1, a power socket 3 at one end of the monitoring body 1, an audible and visual alarm 4 at one end of the monitoring body 1, a gas sensor 5 inside the connecting seat 2, a telescopic tube 6 at one end of the connecting seat 2, and a protective cylinder 7 at one end of the telescopic tube 6, a fixed plate 8 fixedly installed at one end of the telescopic tube 6, slots 9 evenly arranged around the inside of the fixed plate 8, a chuck 10 fixedly installed at one end of the protective cylinder 7, and a chuck block 11 evenly slidably connected around the chuck 10, a sliding ring 12 slidably connected inside the protective cylinder 7, a groove 13 at one end of both the sliding ring 12 and the chuck block 11, and a connecting arm 14 rotatably connected in the middle of the two sets of grooves 13, a sliding groove 15 at the top of the protective cylinder 7, and a connecting rod 16 slidably connected inside the sliding groove 15, the connecting rod 16 passing through the sliding groove 15 and fixedly installed with the sliding ring 12.

[0023] The above-mentioned scheme adopts the following components: the monitoring body 1, the connecting seat 2, the power socket 3, the audible and visual alarm 4, the telescopic tube 6, the gas sensor 5, and the protective cylinder 7 are all prior art referenced in the prior art documents and are not described in detail in this application. The fixed plate 8 and the chuck 10 are both made of aluminum alloy. The slots 9 are evenly distributed and cooperate with the chuck block 11 (40Cr steel). The chuck block 11 slides with the chuck 10 through the dovetail groove. The sliding ring 12 is made of brass and slides inside the protective cylinder 7. The two ends of the connecting arm 14 (45# steel) are rotatably connected to the groove 13 through the M5 pin. The connecting rod 16 is slidably connected to the slide groove 15. When the connecting rod 15 is pushed, the sliding ring 12 pushes the chuck block 11 radially out through the connecting arm 14 and locks it into the slot 9 inside the fixed plate 8.

[0024] Reference Figures 1 to 5 The sliding groove 15 has a sealing groove 18 inside, and a sealing block 17 is fixedly installed at one end of the connecting rod 16. The sealing block 17 is slidably connected to the sealing groove 18. Both the sealing block 17 and the sealing groove 18 have threaded holes 19 at one end, and the threaded holes 19 are threadedly connected to a limiting screw 20.

[0025] The above scheme is adopted: the sealing groove 18 has a rectangular cross section, and a nitrile rubber sealing ring is embedded in the groove. The sealing block 17 is an aluminum alloy skeleton covered with EPDM rubber and slides with the sealing groove 18. The threaded hole 19 adopts a fine thread design. The screw 20 is made of stainless steel. When tightened, it can compress the sealing ring to enhance the sealing effect. After the connecting rod 16 is positioned, the screw 20 is screwed in to make the sealing block 17 and the groove wall of the sealing groove 18 interference fit to prevent dust and liquid from entering. The threaded connection has no stripping and is suitable for sealing and positioning the protective cylinder 7 in humid and dusty environments.

[0026] Reference Figures 1 to 5 A sealing block 21 is fixedly installed at one end of the protective cylinder 7, and a sealing groove 22 is opened at one end of the fixed plate 8, and the sealing groove 22 is adapted to the sealing block 21.

[0027] The above scheme is adopted: the sealing block 21 is made of silicone rubber with an embedded stainless steel skeleton, and the sealing groove 22 is opened on the end face of the fixed plate 8 with rounded corners to form an interference fit with the sealing block 21. When the locking block 11 locks the fixed plate 8 and the chuck 10, the sealing block 21 is embedded in the sealing groove 22. With the trapezoidal cross-section design of the sealing groove 22, radial and axial double sealing is achieved.

[0028] Reference Figures 1 to 5A mounting bracket 23 is fixedly installed at the bottom of the monitoring body 1, and the mounting bracket 23 is symmetrically fixedly installed at the bottom of the monitoring body 1. A dustproof net 24 is fixedly installed inside the protective cylinder 7. A support column 25 is fixedly installed inside the protective cylinder 7. A micro motor 27 is fixedly installed at one end of the support column 25, and the output shaft of the micro motor 27 passes through the support column 25 to fixally install a dust removal brush 26.

[0029] The above-mentioned solution includes: mounting bracket 23, dustproof net 24, micro motor 27, dust removal brush 26, and support column 25, all of which are prior art referenced in the prior art documents and are not described in detail in this application.

[0030] The working principle of this utility model is as follows: When installing the protective cylinder 7 and the fixed plate 8, first align the chuck 10 of the protective cylinder 7 with the fixed plate 8, push the protective cylinder 7 to bring the chuck 10 closer to the fixed plate 8, and then pull the connecting rod 16. The connecting rod 16 drives the sliding ring 12 to slide inside the protective cylinder 7. Since the connecting arm 14 is rotatably connected in the groove 13 between the sliding ring 12 and the locking block 11, when the sliding ring 12 slides, the connecting arm 14 pushes the locking block 11 to slide radially on the chuck 10 and retract. After the chuck 10 passes through the fixed plate 8, the operator pushes the connecting rod 16. At this time, the sliding ring 12 returns to its original position inside the protective cylinder 7, and the connecting arm 14 drives the locking block 11 to extend radially. The locking block 11 is then engaged in the locking groove 9 of the fixed plate 8, thus quickly completing the installation and fixing of the protective cylinder 7 and the fixed plate 8. Compared with flange connections using multiple sets of screws, this snap-fit ​​installation does not require individual screwing. Tightening the screw significantly shortens installation time and improves assembly efficiency. The sealing groove 18 and the sealing block 17 work together to achieve sliding limit and sealing functions. The sealing block 17 at one end of the connecting rod 16 is adapted to the sealing groove 18 in the slide groove 15. When the connecting rod 16 is pulled to adjust the position of the locking block 11, the sealing block 17 can slide smoothly in the sealing groove 18, providing guidance and limit for the sliding of the connecting rod 16, preventing the connecting rod 16 from deviating or falling out of the slide groove 15, and ensuring the stability of the locking block 11 adjustment process. At the same time, the sealing block 17 and the sealing groove 18 fit tightly to prevent internal gas leakage and play a sealing role. After installation, the threaded hole 19 of the sealing block 17 and the sealing groove 18 is connected by the screw 20 to further fix the position of the connecting rod 16, enhance the sealing effect, ensure the stability of the internal environment of the leakage monitoring equipment, and improve the reliability and service life of the equipment.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A leakage monitoring device for hydroelectric power generation equipment, comprising a monitoring body (1), a connecting seat (2) at one end of the monitoring body (1), a power socket (3) at one end of the monitoring body (1), an audible and visual alarm (4) at one end of the monitoring body (1), a gas sensor (5) inside the connecting seat (2), a telescopic tube (6) at one end of the connecting seat (2), and a protective cylinder (7) at one end of the telescopic tube (6), characterized in that, One end of the telescopic tube (6) is fixedly installed with a fixed plate (8). The fixed plate (8) is evenly surrounded by slots (9). One end of the protective tube (7) is fixedly installed with a chuck (10). The chuck (10) is evenly surrounded by a sliding block (11). The protective tube (7) is slidably connected with a sliding ring (12). Both the sliding ring (12) and the block (11) have grooves (13) at one end. The two sets of grooves (13) are rotatably connected with a connecting arm (14) in the middle. The top of the protective tube (7) is provided with a sliding groove (15). The sliding groove (15) is slidably connected with a connecting rod (16). The connecting rod (16) passes through the sliding groove (15) and is fixedly installed with the sliding ring (12).

2. The leakage monitoring device for hydroelectric power generation equipment according to claim 1, characterized in that, The sliding groove (15) has a sealing groove (18) inside, and a sealing block (17) is fixedly installed at one end of the connecting rod (16), and the sealing block (17) is slidably connected to the sealing groove (18).

3. The leakage monitoring device for hydroelectric power generation equipment according to claim 2, characterized in that, Both the sealing block (17) and the sealing groove (18) have threaded holes (19) at one end, and the threaded holes (19) are threadedly connected to a limiting screw (20).

4. A leakage monitoring device for hydroelectric power generation equipment according to claim 3, characterized in that, One end of the protective cylinder (7) is fixedly installed with a sealing block two (21), and one end of the fixed plate (8) is provided with a sealing groove two (22), and the sealing groove two (22) is compatible with the sealing block two (21).

5. A leakage monitoring device for hydroelectric power generation equipment according to claim 4, characterized in that, The monitoring body (1) is fixedly installed with a mounting bracket (23) at the bottom end, and the mounting bracket (23) is symmetrically fixedly installed at the bottom end of the monitoring body (1).

6. A leakage monitoring device for hydroelectric power generation equipment according to claim 5, characterized in that, A dustproof net (24) is fixedly installed inside the protective cylinder (7), and a support column (25) is fixedly installed inside the protective cylinder (7). A micro motor (27) is fixedly installed at one end of the support column (25), and a dust removal brush (26) is fixedly installed through the output shaft of the micro motor (27) through the support column (25).

Images