A hot-pluggable sensor cabin for transformer oil chromatographic on-line monitoring

Abstract

The application discloses a hot-pluggable sensor cabin for transformer oil chromatographic online monitoring, and relates to the technical field of transformer oil chromatographic monitoring equipment.The cabin body is internally movably installed with a plate body two, the top of the plate body two is installed with a vertical plate, the front of the vertical plate is symmetrically provided with a fixing mechanism, the fixing mechanism comprises a guide frame one, a spring and a fixing block, the guide frame one is symmetrically installed on the front of the vertical plate, the top inner wall of the guide frame one is installed with the spring, and one end of the spring is installed with the fixing block.The spring extrudes the fixing block, so that the fixing block extrudes and fixes the gas sensor one;when the gas sensor one needs to be maintained and replaced, the gas sensor one can be conveniently and quickly maintained and replaced by moving the plate body two forward, the gas sensor one can be conveniently removed from the cabin body, the operation space of the maintenance personnel is increased, and the personnel maintenance is more convenient.

Description

Technical Field

[0001] This invention relates to the field of transformer oil chromatography monitoring equipment technology, specifically a hot-swappable sensor compartment for online monitoring of transformer oil chromatography. Background Technology

[0002] Transformer oil chromatography monitoring equipment is used to monitor dissolved gases in transformer oil. Based on quantitative analysis of the gases, it diagnoses internal faults such as overheating and discharge, supporting condition-based maintenance of transformers. Transformer oil chromatography monitoring generally separates the gases in the transformer oil into a detection chamber, and then inserts a gas sensor into the detection chamber to detect the gas composition. The gas sensor needs to be frequently maintained and replaced. Replacing the gas sensor is relatively troublesome, usually requiring the equipment to be shut down, which is inconvenient.

[0003] The existing sensor bays have the following drawbacks: The prior art CN214277282U discloses a barometric pressure sensor cabin, which solves the structural reliability problem. The key technical points of the solution are: a cylindrical tube body, a mounting base at one end of the tube body, a first air pipe and a second air pipe fixed on the mounting base, grooves on the outer walls of the two ends of the tube body, and sealing rings assembled in the grooves; the mounting base is rectangular in structure and has a sloping surface that slopes from the outside to the inside, which facilitates assembly and production and improves operational reliability.

[0004] The aforementioned technologies lack a modular sensor structure, making sensor maintenance and replacement inconvenient. Furthermore, the maintenance and replacement of individual sensors can affect the normal detection of gas sensors. Therefore, a hot-swappable sensor compartment for online monitoring of transformer oil chromatography is needed to solve this problem. This compartment features a structure that allows for rapid sensor replacement, ensures that replacing a single sensor does not affect the normal detection of other sensors, prevents leakage during rapid sensor replacement, and adsorbs any leaks. Summary of the Invention

[0005] One objective of this application is to provide a hot-swappable sensor compartment for online monitoring of transformer oil chromatography, which can solve the technical problems mentioned in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hot-swappable sensor compartment for online monitoring of transformer oil chromatography, comprising a compartment body, a first plate body, and a second plate body, wherein the first plate body is installed on the right side of the compartment body, and a controller is installed on the front of the first plate body. A second plate is movably installed inside the cabin. A vertical plate is installed on the top of the second plate. Multiple gas sensors are installed through the front of the vertical plate, and the detection end of the gas sensors penetrates through the back of the cabin. A fixing mechanism is symmetrically arranged on the front of the vertical plate. The fixing mechanism includes a guide frame, a spring, and a fixing block. The guide frame is symmetrically installed on the front of the vertical plate. A spring is installed on the top inner wall of the guide frame. A fixing block is installed on one end of the spring, and one end of the fixing block extends out of the bottom of the guide frame. The upper and lower fixing blocks are symmetrically located on the outside of the gas sensors.

[0007] Preferably, a block is installed on the right side of the cabin, and a threaded rod is installed through the front of the block, with a limit rod installed at one end of the threaded rod.

[0008] Preferably, a rubber pad is installed on the back of the upright plate.

[0009] Preferably, a rubber pad is installed at the bottom of the fixing block, and a protrusion is installed on the right side of the fixing block.

[0010] Preferably, a guide frame 2 is installed on the top of the plate 2, and a baffle 1 is movably installed through the top of the guide frame 2.

[0011] Preferably, the front of the baffle is provided with multiple through openings and multiple heat dissipation vents.

[0012] Preferably, a plurality of mesh frames are installed through the front of the baffle, the inside of the mesh frames is provided with absorbent material, and a closed cover is installed through the top of the mesh frames.

[0013] Preferably, an electric telescopic rod is installed on the front of the grid frame, and the electric telescopic rod is electrically connected to the controller. A stop bar is installed at the output end of the electric telescopic rod, and the stop bar is located in front of the heat dissipation vent. A rubber pad is installed on the back of the stop bar.

[0014] Preferably, multiple sensor modules are installed on the top of the second plate, and the sensor modules are electrically connected to the controller. Multiple temperature sensors are installed on the top of the second plate, and the temperature sensors are electrically connected to the controller.

[0015] Preferably, a plurality of guide frames 3 are installed on the front of the upright plate, a baffle 2 is movably installed on the inner side of the guide frame 3, and a rubber sleeve is installed on the outer side of the baffle 2.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a spring to compress and fix the gas sensor. When the gas sensor needs to be repaired or replaced, the protrusion is pushed outward to release the pressure on the gas sensor, thus facilitating quick repair and replacement. Furthermore, by moving the plate forward, the gas sensor can be easily removed from the chamber, increasing the operating space for maintenance personnel and making maintenance easier.

[0017] 2. This invention uses adsorption materials in the grid frame to adsorb organic matter, hydrogen, and carbon monoxide that escape into the chamber, preventing gas from leaking out of the detection box and coming into contact with high-pressure equipment outside, thereby reducing the risk of fire.

[0018] 3. This invention uses a temperature sensor to detect the temperature inside the cabin. When the temperature rises to a set value, the lever moves to the right to expose the heat dissipation vent, which facilitates the rapid discharge of hot air from the cabin and ensures that the temperature inside the cabin is normal.

[0019] 4. The present invention uses baffle two to separate and group the gas sensor one, sensor module and temperature sensor inside the cabin, which facilitates the sensor module and temperature sensor to detect the individual gas sensor one, and makes it easy to accurately locate the fault location on a single gas sensor one, so as to facilitate personnel to quickly identify the individual gas sensor one that needs to be repaired. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the plate structure of the present invention; Figure 3 This is a schematic diagram of the vertical plate structure of the present invention; Figure 4 This is a side sectional view of the present invention; Figure 5 This is a schematic diagram of the guide frame structure of the present invention; Figure 6 This is a schematic diagram of the spring structure of the present invention; Figure 7 This is a schematic diagram of the stop bar structure of the present invention; Figure 8 This is a schematic diagram of the grid frame structure of the present invention; Figure 9 This is a flowchart illustrating the method of using the present invention.

[0021] In the diagram: 1. Cabin; 2. Plate 1; 3. Controller; 4. Block; 5. Threaded rod; 6. Limiting rod; 7. Plate 2; 8. Vertical plate; 9. Rubber pad 1; 10. Guide frame 1; 11. Spring; 12. Fixing block; 13. Rubber pad 2; 14. Gas sensor 1; 15. Protrusion; 16. Guide frame 2; 17. Baffle 1; 18. Grid frame; 19. Through-hole; 20. Heat dissipation vent; 21. Electric telescopic rod; 22. Stop bar; 23. Rubber pad 3; 24. Adsorbent material; 25. Sealing cover; 26. Sensor module; 27. Temperature sensor; 28. Guide frame 3; 29. ​​Baffle 2; 30. Rubber sleeve. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for 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 invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6An embodiment of the present invention provides a hot-swappable sensor compartment for online monitoring of transformer oil chromatography. A plate 1 is installed on the right side of the compartment 1. A controller 3 is installed on the front of the plate 1. A plate 2 is movably installed on the inner side of the compartment 1. A vertical plate 8 is installed on the top of the plate 2. A rubber pad 9 is installed on the back of the vertical plate 8. Multiple gas sensors 14 are installed through the front of the vertical plate 8, and the detection end of the gas sensor 14 penetrates through the back of the compartment 1. A fixing mechanism is symmetrically arranged on the front of the vertical plate 8. The fixing mechanism includes a guide frame 10, a spring 11, and a fixing block 12. The guide frame 10 is symmetrically installed on the front of the vertical plate 8. A spring 11 is installed on the top inner wall of the guide frame 10. A fixing block 12 is installed on one end of the spring 11, and one end of the fixing block 12 extends out of the bottom of the guide frame 10. The upper and lower fixing blocks 12 are symmetrically located on the outside of the gas sensors 14. A rubber pad 2 13 is installed at the bottom of the fixing block 12. A protrusion 15 is installed on the right side of the fixing block 12. Furthermore, chamber 1 provides installation space for gas sensor 14. Chamber 1 is installed on the side wall of the gas detection box of the transformer oil chromatography monitoring device, allowing the detection end of gas sensor 14 to extend into the detection box to detect the composition and content of the gas inside the detection box, thereby detecting the oil chromatography of the transformer. Plate 2 provides an installation position for controller 3. Controller 3 receives signals from sensor module 26 and temperature sensor 27, and simultaneously controls electric telescopic rod 21. Plate 7 can move back and forth to drive upright plate 8 and grid frame 18 to move back and forth, thereby facilitating the replacement of adsorption material 24 inside grid frame 18, and also facilitating the maintenance and replacement of gas sensor 14. Upright plate 8 provides an installation position for gas sensor 14, and the back and forth movement of upright plate 8 drives the back and forth movement of gas sensor 14, thereby facilitating the maintenance and replacement of gas sensor 14. Rubber gasket 9 serves as a seal to prevent gas from the detection box behind chamber 1 from entering chamber 1. Furthermore, the guide frame 10 provides guidance for the fixed block 12, allowing the fixed block 12 to move only up and down. The spring 11 provides elastic force to the fixed block 12, and the fixed block 12 squeezes the gas sensor 14 under the elastic force of the spring 11, thereby fixing the gas sensor 14 and ensuring the stability of the gas sensor 14. The rubber pad 13 plays a sealing role, preventing gas from the rear of the cabin 1 from entering the cabin 1 through the gap between the gas sensor 14 and the hole on the back of the cabin 1. The protrusion 15 provides a force position for personnel to push the fixed block 12, making it convenient to push the fixed block 12 up and down. Furthermore, when it is necessary to repair or replace the gas sensor 14, the plate 2 7 is moved forward to drive the upright plate 8 and the grid frame 18 forward, thereby allowing the upright plate 8 and the grid frame 18 to come out of the chamber 1. Then, the protrusion 15 is pushed to move the fixing block 12 outward, thereby relieving the pressure on the gas sensor 14, making it convenient for personnel to inspect and replace the gas sensor 14, and also making it convenient to replace the material in the grid frame 18. Furthermore, the pressure exerted by the spring 11 in the upper guide frame 10 on the gas sensor 14 is greater than the pressure exerted by the spring 11 in the lower guide frame 10 on the gas sensor 14. After the gas sensor 14 is removed, the upper spring 11, under greater elastic force, presses the lower fixing block 12 downward. The downward movement of the upper fixing block 12 blocks the hole where the gas sensor 14 is installed, preventing gas in the detection box on the back of the cabin 1 from entering the front of the vertical plate 8.

[0026] Please see Figure 1 and Figure 2 An embodiment of the present invention provides: a hot-swappable sensor compartment for online monitoring of transformer oil chromatography, wherein a block 4 is installed on the right side of the compartment 1, a threaded rod 5 is installed through the front of the block 4, and a limit rod 6 is installed at one end of the threaded rod 5; Furthermore, block 4 provides an installation position for threaded rod 5, and threaded rod 5 provides an installation position for limiting rod 6. Limiting rod 6 acts as a limit to prevent the grid frame 18 from moving forward and detaching from the chamber 1. When it is necessary to replace the adsorbent material 24 or gas sensor 14 in the grid frame 18, rotate limiting rod 6 to release the limit on the grid frame 18, and then move the grid frame 18 forward, thereby driving plate 7 and vertical plate 8 to move forward, which facilitates personnel to inspect and replace gas sensor 14, and at the same time facilitates the replacement of materials in the grid frame 18.

[0027] Please see Figure 1 and Figure 2 An embodiment of the present invention provides: a hot-swappable sensor compartment for online monitoring of transformer oil chromatography, wherein a guide frame 16 is installed on the top of the plate 2 7, a baffle 17 is movably installed through the top of the guide frame 2 16, a plurality of through openings 19 are provided on the front of the baffle 17, and a plurality of heat dissipation openings 20 are provided on the front of the baffle 17. Furthermore, guide frame 2 16 provides an installation position for baffle 1 17, baffle 1 17 is used to provide an installation position for grid frame 18, and baffle 1 17 and grid frame 18 cooperate to close the front opening of the cabin 1, opening 19 provides a passage for the wire of gas sensor 14 to pass through, and heat dissipation vent 20 provides a heat dissipation channel for the heat generated by gas sensor 14, so that hot air can be discharged.

[0028] Please see Figure 1 , Figure 2 , Figure 4 and Figure 8 An embodiment of the present invention provides: a hot-swappable sensor compartment for online monitoring of transformer oil chromatography, wherein a plurality of grid frames 18 are installed through the front of the baffle 17, an adsorption material 24 is disposed inside the grid frame 18, and a sealing cover 25 is installed through the top of the grid frame 18. Furthermore, the grid frame 18 provides storage space for the adsorbent material 24, which is a mixture of copper-loaded activated carbon particles and titanium-iron alloy particles, used to absorb gaseous organic matter, hydrogen and carbon monoxide gas, and prevent organic matter, hydrogen and carbon monoxide gas from diffusing to the outside of the chamber 1. The sealing cover 25 is used to seal the top opening of the grid frame 18 to prevent the adsorbent material 24 from leaking. Furthermore, when gas accidentally enters the cabin 1 through the gap between the gas sensor 14 and the cabin 1 at the back of the cabin 1, the gas is adsorbed by the adsorption material 24 when it passes through the grid frame 18, thus preventing leakage to the outside world and contact with high-voltage equipment such as transformers, which could cause a fire.

[0029] Please see Figure 1 , Figure 2 and Figure 7 An embodiment of the present invention provides: a hot-swappable sensor compartment for online monitoring of transformer oil chromatography, wherein an electric telescopic rod 21 is installed on the front of the grid frame 18 and the electric telescopic rod 21 is electrically connected to the controller 3, a stop bar 22 is installed at the output end of the electric telescopic rod 21 and the stop bar 22 is located in front of the heat dissipation vent 20, and a rubber pad 23 is installed on the back of the stop bar 22. Furthermore, when the temperature sensor 27 detects that the internal temperature of the cabin 1 has risen to the set value, the controller 3 controls the electric telescopic rod 21 to move the baffle 22 to the right, so that the baffle 22 moves away from the front of the heat dissipation vent 20, exposing the heat dissipation vent 20. This allows the hot air inside the cabin 1 to be discharged to the outside through the heat dissipation vent 20, thereby lowering the internal temperature of the cabin 1. The rubber gasket 23 acts as a seal, sealing the gap between the baffle 22 and the baffle 17, preventing the gas in the heat dissipation vent 20 from escaping through the gap between the baffle 22 and the baffle 17, thus preventing accidental leakage of organic gases.

[0030] Please see Figure 1 , Figure 2 and Figure 3 An embodiment of the present invention provides: a hot-swappable sensor compartment for online monitoring of transformer oil chromatography, wherein multiple sensor modules 26 are installed on the top of the second plate 7 and the sensor modules 26 are electrically connected to the controller 3; multiple temperature sensors 27 are installed on the top of the second plate 7 and the temperature sensors 27 are electrically connected to the controller 3. Furthermore, sensor module 26 is a collection of various gases used to detect organic gases, hydrogen, and carbon monoxide in cabin 1, and transmits the detected information to controller 3. When organic gases, hydrogen, and carbon monoxide are detected, controller 3 controls the electric telescopic rod 21 to move the baffle 22 to the left to close the heat dissipation vent 20. Controller 3 also transmits abnormal information to the rear terminal via wires, facilitating timely troubleshooting and repair of abnormalities. Temperature sensor 27 monitors the temperature in cabin 1 and transmits the temperature information to controller 3. When the detected temperature rises to the set value, controller 3 controls the electric telescopic rod 21 to move the baffle 22 to the right to expose the heat dissipation vent 20, thereby allowing hot air inside cabin 1 to be discharged through the heat dissipation vent 20, achieving cooling of the interior of cabin 1.

[0031] Please see Figure 1 , Figure 2 , Figure 4 and Figure 9 An embodiment of the present invention provides: a hot-swappable sensor compartment for online monitoring of transformer oil chromatography, wherein multiple guide frames 28 are installed on the front of the upright plate 8, a baffle 29 is movably installed on the inner side of the guide frame 28, and a rubber sleeve 30 is installed on the outer side of the baffle 29. Furthermore, guide frame 3 28 provides an installation position for baffle 2 29, while allowing baffle 2 29 to move up and down, facilitating its removal from guide frame 3 28. This prevents baffle 2 29 from interfering with the maintenance and replacement of gas sensor 1 14. Baffle 2 29 is used to group and separate the multiple gas sensors 1 14 on the upright plate 8 and the multiple sensor modules 26 and temperature sensors 27 on the plate body 2 7, allowing sensor modules 26 and temperature sensors 27 to detect different gas sensors 1 14 respectively. Rubber sleeve 30 acts as a seal, preventing gas from different sides of baffle 2 29 from entering the other side through the gap between baffle 2 29 and the chamber 1. This ensures that each group of sensor modules 26 and temperature sensors 27 detects the leaked gas and temperature at a single gas sensor 14, avoiding interference from other gas sensors 14.

[0032] Working Principle: Before using the hot-swappable sensor compartment for online transformer oil chromatography monitoring, it should be checked for any issues that might affect its use. Temperature sensor 27 detects the temperature inside compartment 1. When the detected temperature rises to the set value, controller 3 controls the electric telescopic rod 21 to move the stop bar 22 to the right, exposing the heat dissipation vent 20. This allows hot air inside compartment 1 to escape through the heat dissipation vent 20, thus cooling the interior of compartment 1. Sensor module 26 detects organic gases, hydrogen, and carbon monoxide in compartment 1. When organic gases, hydrogen, and carbon monoxide are detected, controller 3 controls the electric telescopic rod 21 to move the stop bar 22 to the right, exposing the heat dissipation vent 20. The baffle 22 moves to the left to close the heat dissipation vent 20, and the controller 3 transmits abnormal information to the rear terminal through wires, facilitating timely troubleshooting and repair of abnormal problems. At the same time, the adsorbent material 24 absorbs organic gases, hydrogen, and carbon monoxide. When personnel need to repair or replace the gas sensor 14, the limit rod 6 is rotated to release the limit on the grid frame 18, and then the grid frame 18 is moved forward, thereby driving the plate 7 and the upright plate 8 to move forward, facilitating the replacement of the material in the grid frame 18. At the same time, the protrusion 15 is pushed to move the fixing block 12 outward to release the pressure on the gas sensor 14, facilitating the repair and replacement of the gas sensor 14.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the rights involved.

Claims

1. A hot-swappable sensor compartment for online monitoring of transformer oil chromatography, characterized in that: It includes a cabin (1), a first plate (2) and a second plate (7). The first plate (2) is installed on the right side of the cabin (1), and a controller (3) is installed on the front of the first plate (2). A second plate (7) is movably installed on the inner side of the cabin (1). A vertical plate (8) is installed on the top of the second plate (7). Multiple gas sensors (14) are installed through the front of the vertical plate (8), and the detection end of the gas sensor (14) penetrates through the back of the cabin (1). A fixing mechanism is symmetrically arranged on the front of the vertical plate (8). The fixing mechanism includes a guide frame (10), a spring (11), and a fixing block (12). The guide frame (10) is symmetrically installed on the front of the vertical plate (8). A spring (11) is installed on the inner wall of the top of the guide frame (10). A fixing block (12) is installed on one end of the spring (11), and one end of the fixing block (12) extends out of the bottom of the guide frame (10). The upper and lower fixing blocks (12) are symmetrically located on the outside of the gas sensor (14).

2. The hot-swappable sensor compartment for online monitoring of transformer oil chromatography according to claim 1, characterized in that: A block (4) is installed on the right side of the cabin (1), and a threaded rod (5) is installed through the front of the block (4). A limit rod (6) is installed at one end of the threaded rod (5).

3. The hot-swappable sensor compartment for online monitoring of transformer oil chromatography according to claim 1, characterized in that: A rubber pad (9) is installed on the back of the upright plate (8).

4. The hot-swappable sensor compartment for online monitoring of transformer oil chromatography according to claim 1, characterized in that: A rubber pad (13) is installed at the bottom of the fixing block (12), and a protrusion (15) is installed on the right side of the fixing block (12).

5. The hot-swappable sensor compartment for online monitoring of transformer oil chromatography according to claim 1, characterized in that: The top of the second plate (7) is equipped with a second guide frame (16), and the top of the second guide frame (16) is movably equipped with a first baffle (17).

6. The hot-swappable sensor compartment for online monitoring of transformer oil chromatography according to claim 5, characterized in that: The front of the baffle (17) has multiple through openings (19) and multiple heat dissipation openings (20).

7. The hot-swappable sensor compartment for online monitoring of transformer oil chromatography according to claim 6, characterized in that: Multiple mesh frames (18) are installed through the front of the baffle (17), and absorbent material (24) is provided inside the mesh frame (18). A closed cover (25) is installed through the top of the mesh frame (18).

8. The hot-swappable sensor compartment for online monitoring of transformer oil chromatography according to claim 7, characterized in that: An electric telescopic rod (21) is installed on the front of the grid frame (18), and the electric telescopic rod (21) is electrically connected to the controller (3). A stop bar (22) is installed at the output end of the electric telescopic rod (21), and the stop bar (22) is located in front of the heat dissipation port (20). A rubber pad (23) is installed on the back of the stop bar (22).

9. The hot-swappable sensor compartment for online monitoring of transformer oil chromatography according to claim 1, characterized in that: Multiple sensor modules (26) are installed on the top of the second plate (7), and the sensor modules (26) are electrically connected to the controller (3). Multiple temperature sensors (27) are installed on the top of the second plate (7), and the temperature sensors (27) are electrically connected to the controller (3).

10. The hot-swappable sensor compartment for online monitoring of transformer oil chromatography according to claim 1, characterized in that: The front of the upright plate (8) is equipped with multiple guide frames (28), and a baffle (29) is movably installed on the inner side of the guide frame (28). A rubber sleeve (30) is installed on the outer side of the baffle (29).

Images