Butterfly valve type sampling auxiliary tool for transformer

Abstract

The utility model discloses a transformer butterfly valve type sampling auxiliary tool which comprises a valve body, connecting flanges are arranged on the two sides of the valve body, a flange connecting pipe is arranged on one sides of the connecting flanges, sliding grooves are formed in the two sides of the inner wall of the flange connecting pipe, a connecting groove is formed in one side of the flange connecting pipe, and the valve body is arranged in the connecting groove. And an adjusting mechanism is rotationally connected to the interior of the valve body, one side of the flange connecting pipe is in threaded connection with an outer hexagonal threaded seat, and one side of the outer hexagonal threaded seat is detachably connected with a sealing mechanism. By arranging the adjusting mechanism, the equipment can adjust the sampling amount according to actual requirements, and the oil flow can be effectively controlled; by means of the sealing mechanism, the device can keep good sealing performance after sampling is completed, leakage of transformer oil is avoided, the sleeve is in threaded connection with the inner wall of the outer hexagonal threaded seat through the outer threads, and stable connection between the sealing mechanism and a flange connecting pipe is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of sampling auxiliary tools, specifically to a transformer butterfly valve type sampling auxiliary tool. Background Technology

[0002] Oil-immersed transformers are transformers that rely on oil as their primary insulation and cooling medium, and are widely used for voltage conversion between high-voltage levels. During normal operation of a power plant, they are used to step up the voltage and transmit electrical energy to the grid; during power plant maintenance, they are used to step down the voltage to obtain electrical energy from the grid and supply power to the plant's auxiliary loads, making them crucial equipment in power plants and power systems. To ensure the normal operation of oil-immersed transformers, regular oil sampling and monitoring are necessary. This helps to promptly identify potential hazards in the operation of oil-filled electrical equipment and prevent accidents or equipment damage. Oil sampling and monitoring is an important part of the operation and maintenance of oil-immersed transformers and a vital method for monitoring the insulation performance of electrical equipment, ensuring the safe and stable operation of the power system.

[0003] Currently, traditional transformer butterfly valve-type sampling auxiliary tools have several drawbacks during use. They are difficult to control the sampling volume precisely, cannot filter transformer oil, affecting the accuracy of the sampling data, and are difficult to control the oil flow rate accurately, leading to waste of transformer oil. In addition, the sealing effect is poor, which easily causes waste during sampling. Utility Model Content

[0004] The purpose of this utility model is to provide a transformer butterfly valve sampling auxiliary tool to solve the problems mentioned in the background art. In the process of using the current traditional transformer butterfly valve sampling auxiliary tool, it is difficult to accurately control the sampling amount during sampling, and it cannot filter the transformer oil, which affects the accuracy of the sampling data. In addition, it is difficult to accurately control the oil flow during sampling, resulting in waste of transformer oil. At the same time, the sealing effect is poor, which easily causes waste during sampling.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a valve body is included, with connecting flanges on both sides of the valve body, a flange connecting pipe on one side of the connecting flanges, sliding grooves on both sides of the inner wall of the flange connecting pipe, a connecting groove on one side of the flange connecting pipe, an adjusting mechanism rotatably connected inside the valve body, an external hexagonal threaded seat threaded to one side of the flange connecting pipe, and a sealing mechanism detachably connected to one side of the external hexagonal threaded seat;

[0006] The adjusting mechanism includes a fixed base, the lower end of which is fixedly connected to the upper end of the valve body. A turntable is provided at the upper end of the fixed base, and a rotating rod is provided on the inner wall of the fixed base. A sealing plate is fixedly connected to the lower end of the rotating rod, and connecting rods are fixedly connected to both sides of the sealing plate. One end of the connecting rod is rotatably connected to a linkage rod via a rotating shaft, and a filter plate is hinged to one side of the linkage rod.

[0007] Preferably, the upper end of the fixed base is connected to the rear end of the turntable via a transmission connection, and the inner wall of the fixed base is rotatably connected to the outer wall of the rotating rod.

[0008] Preferably, the outer diameter of the sealing plate is the same as the inner diameter of the valve body.

[0009] Preferably, one side of the connecting flange is welded to one side of the valve body, and one side of the flange connecting pipe is bolted to one side of the connecting flange.

[0010] Preferably, the sealing mechanism includes a sleeve, the outer wall of which is threaded to the inner wall of the external hexagonal threaded seat, the outer wall of which is provided with external threads, a hexagonal mounting block is provided on one side of the sleeve, a sampling tube is fixedly connected to one side of the hexagonal mounting block, a threaded groove is opened on one side of the outer wall of the sampling tube, a sampling port is opened on the inner wall of the sampling tube, and a sealing cap is threaded to the outer wall of the threaded groove.

[0011] Preferably, the outer wall of the sleeve is embedded and connected to the inner wall of the external thread, and one side of the sleeve is fixedly connected to one side of the hexagonal mounting block.

[0012] Preferably, the inner wall of the sealing cap has a groove that matches the threaded groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The adjustable mechanism allows the equipment to adjust the sampling volume according to actual needs and effectively control the oil flow. When sampling is required, the operator can rotate the turntable. The rear end of the turntable is connected to the upper end of the fixed base, which in turn drives the rotating rod to rotate on the inner wall of the fixed base. A sealing plate is fixed to the lower end of the rotating rod. As the rotating rod rotates, the sealing plate will rotate inside the valve body, thereby adjusting the size of the sampling port and controlling the oil flow. At the same time, the rotation of the sealing plate will also drive the linkage rod to rotate through the connecting rod and the rotating shaft. A filter plate is hinged to one side of the linkage rod. The filter plate will move accordingly to filter the transformer oil and ensure the accuracy of the sampling data.

[0015] 2. The sealing mechanism ensures the equipment maintains a good seal after sampling, preventing transformer oil leakage. The sleeve is connected to the inner wall of an external hexagonal threaded seat via an external thread, achieving a secure connection between the sealing mechanism and a flanged connecting pipe. When sampling is required, the operator can rotate the hexagonal mounting block to rotate the sleeve within the external hexagonal threaded seat, thereby adjusting the position of the sampling tube. A threaded groove is provided on one side of the outer wall of the sampling tube, and a sealing cap is threaded onto the outer wall of the groove. After sampling, the operator can tighten the sealing cap to ensure a tight seal between the sampling tube and the external environment. Furthermore, a hexagonal mounting block is provided on one side of the sleeve for easy rotation by the operator, and the sampling tube is fixed to one side of the hexagonal mounting block. A sampling port is provided on the inner wall of the sampling tube for convenient transformer oil sampling. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the adjustment mechanism structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the sealing mechanism of this utility model;

[0019] Figure 4 This is a three-dimensional side view of the exploded structure of this utility model.

[0020] In the diagram: 1. Valve body; 2. Connecting flange; 3. Flange connecting pipe; 4. Slide groove; 5. Connecting groove; 6. Adjusting mechanism; 7. External hexagonal threaded seat; 8. Sealing mechanism; 61. Fixed seat; 62. Turntable; 63. Rotating rod; 64. Sealing plate; 65. Connecting rod; 66. Rotating shaft; 67. Linkage rod; 68. Filter plate; 81. Sleeve; 82. External thread; 83. Hexagonal mounting block; 84. Sampling tube; 85. Threaded groove; 86. Sampling port; 87. Sealing cover. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 , Figure 2 and Figure 4This utility model provides a technical solution: a transformer butterfly valve sampling auxiliary tool, including a valve body 1, connecting flanges 2 on both sides of the valve body 1, a flange connecting pipe 3 on one side of the connecting flanges 2, sliding grooves 4 on both sides of the inner wall of the flange connecting pipe 3, and a connecting groove 5 on one side of the flange connecting pipe 3. An adjusting mechanism 6 is rotatably connected inside the valve body 1. An external hexagonal threaded seat 7 is threadedly connected to one side of the flange connecting pipe 3. A sealing mechanism 8 is detachably connected to one side of the external hexagonal threaded seat 7. The adjusting mechanism 6 includes a fixed seat 61, the lower end of which is fixedly connected to the upper end of the valve body 1. A turntable 62 is provided at the upper end, a rotating rod 63 is provided on the inner wall of the fixed seat 61, a sealing plate 64 is fixedly connected to the lower end of the rotating rod 63, a connecting rod 65 is fixedly connected to both sides of the sealing plate 64, a linkage rod 67 is rotatably connected to one end of the connecting rod 65 through a rotating shaft 66, a filter plate 68 is hinged to one side of the linkage rod 67, the upper end of the fixed seat 61 is connected to the rear end of the turntable 62, the inner wall of the fixed seat 61 is rotatably connected to the outer wall of the rotating rod 63, the outer diameter of the sealing plate 64 is the same as the inner diameter of the valve body 1, one side of the connecting flange 2 is welded to one side of the valve body 1, and one side of the flange connecting pipe 3 is bolted to one side of the connecting flange 2.

[0023] The sealing mechanism 8 includes a sleeve 81. The outer wall of the sleeve 81 is threadedly connected to the inner wall of the external hexagonal threaded seat 7. The outer wall of the sleeve 81 is provided with an external thread 82. A hexagonal mounting block 83 is provided on one side of the sleeve 81. A sampling tube 84 is fixedly connected to one side of the hexagonal mounting block 83. A threaded groove 85 is opened on the side of the sampling tube 84 away from the hexagonal mounting block 83. A sampling port 86 is opened on the inner wall of the sampling tube 84. The sampling port 86 passes through the sampling tube 84 and the hexagonal mounting block 83 and extends into the valve body 1. A sealing cover 87 is threadedly connected to the outer wall of the threaded groove 85. The outer wall of the sleeve 81 is embedded and connected to the inner wall of the external thread 82. One side of the sleeve 81 is fixedly connected to one side of the hexagonal mounting block 83. The inner wall of the sealing cover 87 is provided with a threaded groove 85. The groove 85 is compatible with the external hexagonal threaded seat 7, which facilitates the disassembly and assembly of the sealing mechanism 8 by the staff using tools. The external thread 82 improves the tightness of the connection between the sealing mechanism 8 and the external hexagonal threaded seat 7, preventing oil leakage during sampling. The hexagonal mounting block 83 increases the stability of the connection between the sampling tube 84 and the sleeve 81, improving the stability of the sampling tube 84 during use. The sampling port 86 facilitates the sampling of transformer oil. The threaded groove 85 improves the tightness of the connection between the sealing cover 87 and the sampling tube 84, preventing oil leakage at the sampling port 86 and improving the sealing performance during sampling.

[0024] Please see Figure 1 , Figure 3 and Figure 4The sealing mechanism 8 includes a sleeve 81. The outer wall of the sleeve 81 is threadedly connected to the inner wall of the external hexagonal threaded seat 7. The outer wall of the sleeve 81 is provided with an external thread 82. A hexagonal mounting block 83 is provided on one side of the sleeve 81. A sampling tube 84 is fixedly connected to one side of the hexagonal mounting block 83. A threaded groove 85 is opened on one side of the outer wall of the sampling tube 84. A sampling port 86 is opened on the inner wall of the sampling tube 84. A sealing cap 87 is threadedly connected to the outer wall of the threaded groove 85. The outer wall of the sleeve 81 is embedded and connected to the inner wall of the external thread 82. One side of the sleeve 81 is fixedly connected to one side of the hexagonal mounting block 83. A groove that matches the threaded groove 85 is opened on the inner wall of the sealing cap 87.

[0025] In operation, the operator first connects a flange connecting pipe 3 to the transformer butterfly valve. The chute 4 facilitates the sliding fit between the flange connecting pipe 3 and the sealing plate 64. When transformer oil sampling is required, the turntable 62 is rotated. The turntable 62 drives the rotating rod 63 to rotate, which in turn drives the sealing plate 64 to rotate. The sealing plate 64 then moves the connecting rod 65. The connecting rod 65, via the rotating shaft 66, moves the linkage rod 67. The linkage rod 67 moves the filter plate 68 inside the flange connecting pipe 3, facilitating control of the filter plate 68's filtration of the transformer oil. When sampling is required, the operator... The operator rotates the external hexagonal threaded seat 7, which moves the sleeve 81, which in turn moves the hexagonal mounting block 83, which in turn moves the sampling tube 84. At this time, the sampling tube 84 samples the transformer oil through the sampling port 86. After sampling, the operator threads the sealing cap 87 to the threaded groove 85, sealing the sampling tube 84 to prevent leakage of transformer oil. The connecting groove 5 facilitates the connection between the flange connecting pipe 3 and the transformer butterfly valve. The lower end of the rotating rod 63 is fixedly connected via the adjusting mechanism 6. A sealing plate 64 is provided, with connecting rods 65 fixed to both sides of the sealing plate 64. One end of the connecting rod 65 is rotatably connected to a linkage rod 67 via a rotating shaft 66. A filter plate 68 is hinged to one side of the linkage rod 67. A sealing mechanism 8 is provided, with a hexagonal mounting block 83 on one side of the sleeve 81. A sampling tube 84 is fixed to one side of the hexagonal mounting block 83. A threaded groove 85 is opened on one side of the outer wall of the sampling tube 84, and a sealing cap 87 is threadedly connected to the outer wall of the threaded groove 85. After sampling is completed, the sealing cap 87 is threadedly connected to the threaded groove 85, at which time the sealing cap 87 seals the sampling tube 84, preventing the inside of the sampling tube 84 from being exposed to the outside. In the event of transformer oil leakage, an external hexagonal threaded seat 7 is provided to facilitate the installation and disassembly of the sealing mechanism 8. A filter plate 68 is installed to filter the transformer oil, preventing impurities from entering the sampling tube 84 and affecting the accuracy of the sampling data. A sliding groove 4 is provided to facilitate the connection between the flange connecting pipe 3 and the filter plate 68, and also guides the movement of the filter plate 68. A sealing cover 87 is provided to prevent transformer oil leakage inside the sampling tube 84. The operation is simple and convenient.

[0026] Working principle: First, the sealing mechanism 8 includes a sleeve 81. The outer wall of the sleeve 81 is threadedly connected to the inner wall of the external hexagonal threaded seat 7. The outer wall of the sleeve 81 is provided with an external thread 82. A hexagonal mounting block 83 is provided on one side of the sleeve 81. A sampling tube 84 is fixedly connected to one side of the hexagonal mounting block 83. A threaded groove 85 is opened on the side of the sampling tube 84 away from the hexagonal mounting block 83. A sampling port 86 is opened on the inner wall of the sampling tube 84. The sampling port 86 passes through the sampling tube 84 and the hexagonal mounting block 83 and extends into the valve body 1. A sealing cover 87 is threadedly connected to the outer wall of the threaded groove 85. The outer wall of the sleeve 81 is embedded and connected to the inner wall of the external thread 82. One side of the sleeve 81 is fixedly connected to one side of the hexagonal mounting block 83. The inner wall of the sealing cover 87 is provided with a threaded groove 85. The device has a groove that matches the threaded groove 85. The external hexagonal threaded seat 7 facilitates the disassembly and assembly of the sealing mechanism 8 by the operator using tools. The external thread 82 improves the tightness of the connection between the sealing mechanism 8 and the external hexagonal threaded seat 7, preventing oil leakage during sampling. The hexagonal mounting block 83 increases the stability of the connection between the sampling tube 84 and the sleeve 81, improving the stability of the sampling tube 84 during use. The sampling port 86 facilitates the sampling of transformer oil. The threaded groove 85 improves the tightness of the connection between the sealing cover 87 and the sampling tube 84, preventing oil leakage at the sampling port 86 and improving the sealing performance during sampling.

[0027] Then, during use, the operator first connects a flange connecting pipe 3 to the transformer butterfly valve. The chute 4 facilitates the sliding fit between the flange connecting pipe 3 and the sealing plate 64. When transformer oil sampling is required, the turntable 62 is rotated. The turntable 62 drives the rotating rod 63 to rotate, which in turn drives the sealing plate 64 to rotate. The sealing plate 64 then moves the connecting rod 65. The connecting rod 65, via the rotating shaft 66, drives the linkage rod 67 to move. The linkage rod 67 moves the filter plate 68 inside the flange connecting pipe 3, facilitating control of the filter plate 68's filtration of the transformer oil. When sampling is required, the operator rotates the external hexagonal thread... Seat 7, the external hexagonal threaded seat 7 drives the sleeve 81 to move, the sleeve 81 drives the hexagonal mounting block 83 to move, the hexagonal mounting block 83 drives the sampling tube 84 to move. At this time, the sampling tube 84 samples the transformer oil through the sampling port 86. After sampling, the operator connects the sealing cover 87 to the threaded groove 85. At this time, the sealing cover 87 seals the sampling tube 84 to prevent the transformer oil inside the sampling tube 84 from leaking. The connecting groove 5 facilitates the connection between the flange connecting pipe 3 and the transformer butterfly valve. The adjusting mechanism 6 is provided, and the lower end of the rotating rod 63 is fixedly connected to the sealing plate 64. The two sides of the sealing plate 64 are fixedly connected to the connecting rod 6. 5. One end of the connecting rod 65 is rotatably connected to the linkage rod 67 via the rotating shaft 66. A filter plate 68 is hinged to one side of the linkage rod 67. A sealing mechanism 8 is provided. A hexagonal mounting block 83 is provided on one side of the sleeve 81. A sampling tube 84 is fixedly connected to one side of the hexagonal mounting block 83. A threaded groove 85 is opened on one side of the outer wall of the sampling tube 84. A sealing cap 87 is threadedly connected to the outer wall of the threaded groove 85. After sampling, the sealing cap 87 is threadedly connected to the threaded groove 85. At this time, the sealing cap 87 seals the sampling tube 84 to prevent the transformer oil inside the sampling tube 84 from leaking. An external hexagonal threaded seat 7 is provided to facilitate the operation of the sealing mechanism 8 by the staff. The installation and disassembly are simple. A filter plate 68 is installed to facilitate the filtration of transformer oil, preventing impurities from entering the sampling tube 84 and affecting the accuracy of the sampling data. A sliding groove 4 facilitates the connection between the flange connecting pipe 3 and the filter plate 68, and also guides the movement of the filter plate 68. A sealing cover 87 prevents leakage of transformer oil inside the sampling tube 84. The operation is simple and convenient. The above describes the entire working process of the device. Any content not described in detail in this manual is existing technology known to those skilled in the art.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transformer butterfly valve sampling auxiliary tool, comprising a valve body (1), characterized in that: The valve body (1) is provided with connecting flanges (2) on both sides, and a flange connecting pipe (3) is provided on one side of the connecting flange (2). The inner wall of the flange connecting pipe (3) is provided with sliding grooves (4) on both sides, and a connecting groove (5) is provided on one side of the flange connecting pipe (3). An adjusting mechanism (6) is rotatably connected inside the valve body (1). A hexagonal threaded seat (7) is threadedly connected to one side of the flange connecting pipe (3), and a sealing mechanism (8) is detachably connected to one side of the hexagonal threaded seat (7). The adjusting mechanism (6) includes a fixed seat (61), the lower end of which is fixedly connected to the upper end of the valve body (1). A turntable (62) is provided on the upper end of the fixed seat (61). A rotating rod (63) is provided on the inner wall of the fixed seat (61). A sealing plate (64) is fixedly connected to the lower end of the rotating rod (63). Connecting rods (65) are fixedly connected to both sides of the sealing plate (64). One end of the connecting rod (65) is rotatably connected to a linkage rod (67) via a rotating shaft (66). A filter plate (68) is hinged to one side of the linkage rod (67).

2. The transformer butterfly valve type sampling auxiliary tool according to claim 1, characterized in that: The upper end of the fixed seat (61) is connected to the rear end of the turntable (62) via a transmission, and the inner wall of the fixed seat (61) is rotatably connected to the outer wall of the rotating rod (63).

3. The transformer butterfly valve type sampling auxiliary tool according to claim 2, characterized in that: The outer diameter of the sealing plate (64) is the same as the inner diameter of the valve body (1).

4. The transformer butterfly valve type sampling auxiliary tool according to claim 1, characterized in that: One side of the connecting flange (2) is welded to one side of the valve body (1), and one side of the flange connecting pipe (3) is bolted to one side of the connecting flange (2).

5. The transformer butterfly valve type sampling auxiliary tool according to claim 1, characterized in that: The sealing mechanism (8) includes a sleeve (81), the outer wall of the sleeve (81) is threaded to the inner wall of the external hexagonal thread seat (7), the outer wall of the sleeve (81) is provided with an external thread (82), a hexagonal mounting block (83) is provided on one side of the sleeve (81), a sampling tube (84) is fixedly connected to one side of the hexagonal mounting block (83), a threaded groove (85) is opened on one side of the outer wall of the sampling tube (84), a sampling port (86) is opened on the inner wall of the sampling tube (84), and a sealing cap (87) is threaded to the outer wall of the threaded groove (85).

6. The transformer butterfly valve type sampling auxiliary tool according to claim 5, characterized in that: The outer wall of the sleeve (81) is embedded and connected to the inner wall of the external thread (82), and one side of the sleeve (81) is fixedly connected to one side of the hexagonal mounting block (83).

7. The transformer butterfly valve type sampling auxiliary tool according to claim 5, characterized in that: The inner wall of the sealing cap (87) is provided with a groove that matches the threaded groove (85).

Images