Movable transformer oil detection assembly

Abstract

The utility model discloses a movable transformer oil detection assembly which is characterized in that through the movable detection assembly arranged in a transformer oil tank, when transformer oil at different liquid levels in the transformer oil tank needs to be detected, a driving motor of the movable detection assembly is started; a screw rod is driven to rotate through meshing transmission of a driving bevel gear and a driven bevel gear, so that a threaded sleeve moves up and down in the axial direction of the screw rod, and a TCD detector and an FID detector on a mounting plate are driven to move to different liquid levels of transformer oil in a transformer oil tank; the TCD detector and the FID detector respectively detect H2, O2, hydrocarbon gas, CO and CO2 generated by decomposition of transformer oil at different liquid levels in the transformer oil tank, and the detection results are conveyed to the transformer oil detection control cabinet, so that the detection results are more accurate.

Description

Technical Field

[0001] This application relates to the field of transformer oil testing technology, and more specifically to a movable transformer oil testing component. Background Technology

[0002] Transformer oil is a distilled and refined natural mineral oil, primarily composed of pure, stable, low-viscosity hydrocarbons with good insulation and cooling properties, commonly referred to as transformer oil. Oil-immersed transformers are important electrical equipment, widely used in civil building power supply, utilizing transformer oil as a sealing and insulating material. Compared to dry-type transformers, the core and windings of oil-immersed transformers are submerged in a tank filled with transformer oil to achieve effective insulation and heat dissipation. However, with long-term operation, transformer oil gradually ages and decomposes, producing small amounts of low-molecular-weight hydrocarbons and other gases, potentially leading to malfunctions. Therefore, regular testing and analysis of transformer oil is crucial to ensuring the normal operation of transformers. Existing transformer oil testing equipment is typically installed in fixed positions on the inner wall of the tank, limiting its testing range and allowing analysis of only a localized area of ​​the transformer oil. This localized testing method cannot comprehensively reflect the overall condition of the transformer oil within the tank, potentially leading to limited and misleading test results. Therefore, there is an urgent need for a new type of transformer oil testing device to achieve comprehensive testing and analysis of transformer oil, thereby improving the operational safety and reliability of transformers. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this application is to provide a movable transformer oil detection component to solve the problems mentioned in the background art.

[0004] According to one aspect of this application, a movable transformer oil detection assembly is disposed on an oil-immersed transformer body. The oil-immersed transformer body includes a transformer oil tank with a transformer core and windings internally. The movable detection assembly is installed on the transformer oil tank. The movable detection assembly includes a transformer oil detection control cabinet, a drive assembly, and a detector body. The transformer oil detection control cabinet is fixedly installed on the outer wall of the transformer oil tank. The drive assembly is disposed inside the transformer oil tank. The detector body is disposed on the drive assembly and is electrically connected to the transformer oil detection control cabinet. The detector body can move vertically up and down in the transformer oil tank under the drive of the drive assembly, so that the detector body can detect transformer oil at different liquid levels in the transformer oil tank.

[0005] Preferably, the drive assembly includes a drive motor, a transmission component, a lead screw, a threaded sleeve, and a mounting plate. The drive motor is fixedly installed on the upper part of one outer side wall of the transformer tank. The output shaft of the drive motor passes through and extends into the interior of the transformer tank. The output shaft of the drive motor is connected to the lead screw via the transmission component. The lead screw is vertically rotatably disposed inside the transformer tank. A threaded sleeve is threadedly connected to the lead screw. A mounting plate is fixedly mounted on the threaded sleeve, and the mounting plate is slidably connected to the inner side wall of the transformer tank. The detector body is fixedly mounted on the mounting plate.

[0006] Preferably, the transmission component includes a driving bevel gear and a driven bevel gear, the output shaft end of the drive motor is fixedly connected to the driving bevel gear, the upper end of the lead screw is fixedly connected to the driven bevel gear, and the driving bevel gear and the driven bevel gear are meshed and transmitted together.

[0007] Preferably, a sealing cover is provided on the outside of the transmission component, the sealing cover is fixedly installed on the inner wall of the transformer tank, and the output shaft of the drive motor and the lead screw are rotatably connected to the sealing cover through a sealed rotary bearing.

[0008] Preferably, the detector body includes a TCD detector and an FID detector, and the mounting plates are fixedly provided on both sides of the threaded sleeve. The TCD detector and the FID detector are respectively fixedly installed on the mounting plates on both sides. The TCD detector and the FID detector are electrically connected to the transformer oil detection control cabinet.

[0009] Preferably, the transformer oil detection control cabinet is fixedly installed on one side of the transformer oil tank via a support frame, and two conduits are fixedly connected between the outer side of the transformer oil detection control cabinet and the side wall of the transformer oil tank. The connecting wires of the TCD detector and the FID detector are electrically connected to the transformer oil detection control cabinet through the two conduits respectively.

[0010] Preferably, a slider is fixedly provided on one side of the mounting plate near the inner wall of the transformer tank, and a guide rail is fixedly provided on the inner wall of the transformer tank along its vertical direction. The slider is slidably disposed on the guide rail, and the axis of the guide rail is parallel to the axis of the lead screw.

[0011] The advantages of this application compared to the prior art are as follows: This application provides a movable transformer oil detection component. When the movable detection component, installed inside the transformer oil tank, needs to detect transformer oil at different levels, its drive motor is activated. This, through the meshing of the active and driven bevel gears, drives the lead screw to rotate, causing the threaded sleeve to move up and down along the lead screw axis. This, in turn, moves the TCD and FID detectors on the mounting plate to different levels of transformer oil within the tank. Consequently, the TCD and FID detectors detect the H2 produced by the decomposition of transformer oil at different levels within the tank. 2、 O2, hydrocarbon gases, CO, and CO2 are detected, and the results are transmitted to the transformer oil detection control cabinet to make the detection results more accurate. Attached Figure Description

[0012] Figure 1 This is a perspective view of a movable transformer oil detection assembly according to an embodiment of this application.

[0013] Figure 2 This is a front view of a movable transformer oil detection assembly according to an embodiment of this application.

[0014] Figure 3 This is an internal cross-sectional view of a movable transformer oil detection assembly according to an embodiment of this application.

[0015] Figure 4 yes Figure 3 Enlarged structural diagram of section A in the middle.

[0016] Reference numerals in the attached drawings: 1. Oil-immersed transformer body; 2. Transformer oil tank; 3. Transformer oil detection and control cabinet; 4. Drive motor; 5. Lead screw; 6. Threaded sleeve; 7. Mounting plate; 8. Driving bevel gear; 9. Driven bevel gear; 10. Sealing cover; 11. TCD detector; 12. FID detector; 13. Bushing; 14. Slider; 15. Guide rail. Detailed Implementation

[0017] To make the content of this application easier to understand, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the accompanying drawings. Figure 2 In the context of direction, the terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0018] like Figures 1-4As shown, a movable transformer oil detection assembly is installed on an oil-immersed transformer body 1. The oil-immersed transformer body 1 includes a transformer oil tank 2, which contains a transformer core and windings. The movable detection assembly is installed on the transformer oil tank 2. The movable detection assembly includes a transformer oil detection control cabinet 3, a drive assembly, and a detector body. The transformer oil detection control cabinet 3 is fixedly installed on the outer wall of the transformer oil tank 2 via a support frame. The drive assembly includes a drive motor 4, a transmission component, a lead screw 5, a threaded sleeve 6, and a mounting plate 7. The drive motor 4 is fixedly installed on one outer wall of the transformer oil tank 2. The output shaft of the drive motor 4 extends through and into the transformer tank 2. The output shaft of the drive motor 4 is connected to the lead screw 5 via a transmission component, which includes a driving bevel gear 8 and a driven bevel gear 9. The end of the output shaft of the drive motor 4 is fixedly connected to the driving bevel gear 8, and the upper end of the lead screw 5 is fixedly connected to the driven bevel gear 9. The driving bevel gear 8 and the driven bevel gear 9 mesh and transmit power. The lead screw 5 is vertically rotatable inside the transformer tank 2. A threaded sleeve 6 is threaded onto the lead screw 5. Mounting plates 7 are fixedly mounted on both sides of the threaded sleeve 6, and TCD detectors are fixedly mounted on the mounting plates 7 on both sides. TCD detector 11 and FID detector 12 respectively detect H2, O2, hydrocarbon gases, CO, and CO2 generated by the decomposition of transformer oil at different levels in transformer oil tank 2. Two bushings 13 are fixedly connected between the outside of transformer oil detection control cabinet 3 and the side wall of transformer oil tank 2. The connecting wires of TCD detector 11 and FID detector 12 are electrically connected to transformer oil detection control cabinet 3 through the two bushings 13. In addition, a slider 14 is fixedly provided on one side of the mounting plate 7 near the inner side wall of transformer oil tank 2. A guide rail 15 is fixedly installed on the inner wall of the transformer oil tank 2 along its vertical direction. The slider 14 is slidably installed on the guide rail 15. The axis of the guide rail 15 is parallel to the axis of the lead screw 5. The sliding design of the slider 14 and the guide rail 15 can ensure that the threaded sleeve 6 drives the mounting plate 7 to move up and down stably. In addition, a sealing cover 10 is provided on the outside of the transmission component. The sealing cover 10 is fixedly installed on the inner wall of the transformer oil tank 2. The output shaft of the drive motor 4 and the lead screw 5 are rotatably connected to the sealing cover 10 through a sealed rotating bearing. The design of the sealing cover 10 ensures that the driving bevel gear 8 and the driven bevel gear 9 are not affected by the transformer oil when they mesh.

[0019] Working principle: When it is necessary to detect transformer oil at different levels in transformer oil tank 2, the drive motor 4 is started, which in turn drives the lead screw 5 to rotate through the meshing transmission of the driving bevel gear 8 and the driven bevel gear 9. This causes the threaded sleeve 6 to move up and down along the axial direction of the lead screw 5, thereby moving the TCD detector 11 and FID detector 12 on the mounting plate 7 to different levels of transformer oil in transformer oil tank 2. This allows the TCD detector 11 and FID detector 12 to detect the H2 produced by the decomposition of transformer oil at different levels in transformer oil tank 2.2、 O2 and hydrocarbon gases, CO, CO2 are detected, and the detection results are transmitted to transformer oil detection control cabinet 3, thereby making the detection results more accurate.

[0020] The above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, without departing from the spirit and scope defined by the claims of this application.

Claims

1. A movable transformer oil detection assembly, disposed on an oil-immersed transformer body (1), the oil-immersed transformer body (1) comprising a transformer oil tank (2) internally containing a transformer core and windings, characterized in that, A movable detection assembly is installed on the transformer oil tank (2). The movable detection assembly includes a transformer oil detection control cabinet (3), a drive assembly, and a detector body. The transformer oil detection control cabinet (3) is fixedly installed on the outer wall of the transformer oil tank (2). The drive assembly is located inside the transformer oil tank (2). The detector body is installed on the drive assembly. The detector body is electrically connected to the transformer oil detection control cabinet (3). The detector body can move up and down vertically inside the transformer oil tank (2) under the drive of the drive assembly, so that the detector body can detect transformer oil at different liquid levels in the transformer oil tank (2).

2. The movable transformer oil detection assembly according to claim 1, characterized in that, The drive assembly includes a drive motor (4), a transmission component, a lead screw (5), a threaded sleeve (6), and a mounting plate (7). The drive motor (4) is fixedly installed on the upper part of one outer side wall of the transformer tank (2). The output shaft of the drive motor (4) passes through and extends into the interior of the transformer tank (2). The output shaft of the drive motor (4) is connected to the lead screw (5) through the transmission component. The lead screw (5) is vertically rotatably installed inside the transformer tank (2). The lead screw (5) is threadedly connected to the threaded sleeve (6). The mounting plate (7) is fixedly installed on the threaded sleeve (6), and the mounting plate (7) is slidably connected to the inner side wall of the transformer tank (2). The detector body is fixedly installed on the mounting plate (7).

3. The movable transformer oil detection assembly according to claim 2, characterized in that, The transmission component includes a driving bevel gear (8) and a driven bevel gear (9). The output shaft end of the drive motor (4) is fixedly connected to the driving bevel gear (8), and the upper end of the lead screw (5) is fixedly connected to the driven bevel gear (9). The driving bevel gear (8) and the driven bevel gear (9) are meshed and transmitted together.

4. The movable transformer oil detection assembly according to claim 3, characterized in that, A sealing cover (10) is provided on the outside of the transmission component. The sealing cover (10) is fixedly installed on the inner wall of the transformer oil tank (2). The output shaft of the drive motor (4) and the lead screw (5) are rotatably connected to the sealing cover (10) through a sealed rotating bearing.

5. A movable transformer oil detection assembly according to claim 2, characterized in that, The detector body includes a TCD detector (11) and an FID detector (12). The mounting plates (7) are fixedly provided on both sides of the threaded sleeve (6). The TCD detector (11) and the FID detector (12) are fixedly installed on the mounting plates (7) on both sides respectively. The TCD detector (11) and the FID detector (12) are electrically connected to the transformer oil detection control cabinet (3).

6. The movable transformer oil detection assembly according to claim 5, characterized in that, The transformer oil detection control cabinet (3) is fixedly installed on one side of the transformer oil tank (2) by a support frame. Two conduits (13) are fixedly connected between the outside of the transformer oil detection control cabinet (3) and the side wall of the transformer oil tank (2). The connecting wires of the TCD detector (11) and the FID detector (12) are electrically connected to the transformer oil detection control cabinet (3) through the two conduits (13).

7. A movable transformer oil detection assembly according to claim 5, characterized in that, A slider (14) is fixedly provided on one side of the mounting plate (7) near the inner wall of the transformer oil tank (2). A guide rail (15) is fixedly provided on the inner wall of the transformer oil tank (2) along its vertical direction. The slider (14) is slidably disposed on the guide rail (15). The axis of the guide rail (15) is parallel to the axis of the lead screw (5).

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