Sampling device of transformer oil spectrum analyzer

Abstract

The utility model relates to the technical field of transformer oil sampling, in particular to a sampling device of a transformer oil spectrum analyzer. Comprising a sampling tube, a piston, a movable rod and a protective cap, the piston is mounted in the sampling tube, a movable rod is mounted above the piston, and the movable rod and the sampling tube are coaxial; a protective cap is arranged at a discharge hole of the sampling tube; the device further comprises a collecting funnel and a bubble removing device, the collecting funnel is arranged above the sampling pipe, and the bubble removing device is fixed, is used for removing tiny bubbles in the sampling pipe and is matched with the sampling pipe to complete detection at the same time.

Description

Technical Field

[0001] This utility model relates to the field of transformer oil sampling technology, specifically to a transformer oil spectrometer sampling device. Background Technology

[0002] Transformer oil sampling refers to the process of extracting oil samples from a transformer for testing and analysis. Current sampling methods typically involve trained professionals conducting the work on dry, sunny days. Sampling requires 500-1000ml glass bottles with ground glass stoppers, which are pre-washed and dried. Before sampling, the sampling port must be cleaned, and sampling is performed from the lower valve of the transformer. Approximately 2kg of dirty oil is first drained to clean the drain hole, and then the oil is poured into the sample bottle, which is then filled and tightly sealed. A label with relevant information is affixed. However, after sampling, the glass bottle is usually manually shaken to expel air bubbles and reduce errors in subsequent spectral analysis. This method cannot completely remove all air bubbles and is cumbersome, reducing sampling efficiency.

[0003] Therefore, this utility model provides a sampling device for a transformer oil spectrometer to solve the above problems. Utility Model Content

[0004] The technical problem this invention aims to solve is as follows: Existing sampling methods typically involve specially trained professionals conducting sampling on dry, sunny days. Sampling requires 500-1000ml glass bottles with ground glass stoppers, which are pre-washed and dried. Before sampling, the sampling port must be cleaned, and sampling is performed from the lower valve of the transformer. Approximately 2kg of waste oil is first drained to clean the drain hole, and then the oil is poured into the sample bottle. The bottle must be filled completely and tightly sealed with the stopper, and a label indicating relevant information is affixed. However, after existing sampling methods, it is usually necessary to manually shake the glass bottle to expel internal air bubbles, thereby reducing errors in subsequent spectral analysis. The above method cannot completely expel the internal air bubbles, and the operation is cumbersome, reducing sampling efficiency.

[0005] This utility model provides the following technical solution: a sampling device for a transformer oil spectrometer, comprising a sampling tube, a piston, a movable rod, and a protective cap; the piston is installed inside the sampling tube, and a movable rod is installed above the piston, the movable rod being coaxial with the sampling tube; a protective cap is provided at the outlet of the sampling tube; it also includes a collecting funnel and a defoaming device, the collecting funnel being disposed above the sampling tube, the defoaming device being fixed, the defoaming device being used to remove tiny air bubbles inside the sampling tube, and simultaneously cooperating with the sampling tube to complete the detection.

[0006] Preferably, the defoaming device includes a fixed frame, a fixed block, a fixed chamber, an ultrasonic vibrator, and a squeezing device. The fixed frame is equipped with a fixed block, and the fixed block has a fixed chamber that is consistent with the sampling tube. The ultrasonic vibrator is symmetrically installed inside the fixed block, and the squeezing device is installed at the bottom of the fixed chamber.

[0007] Preferably, the extrusion device includes a telescopic motor, a telescopic rod, and a fixed sleeve. The telescopic motor is installed inside the fixed chamber, and a telescopic rod for telescopic extension is installed at the output end of the telescopic motor. A fixed sleeve is installed at the output end of the telescopic rod.

[0008] Preferably, a collection funnel is detachably provided on the sampling tube.

[0009] Preferably, the sampling tube is provided with a detachable collection chamber.

[0010] Preferably, the collecting cavity has a fixing hole at its center, and the cross-sectional shape of the collecting cavity is two symmetrical U-shapes.

[0011] Preferably, a fixing plate is installed on the sampling tube, a first magnetic block is installed on the fixing plate, and a corresponding second magnetic block is installed in the fixing chamber.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting up a new defoaming device, uses ultrasonic vibration to expel air bubbles from the sampling tube, thereby achieving automatic defoaming after sampling, thus avoiding the manual shaking defoaming process. At the same time, the above-mentioned defoaming device uses ultrasonic vibration to effectively defoam, and combined with the squeezing of the squeezing device, all air bubbles in the sampling tube are expelled, further reducing the error of subsequent spectral analysis and improving sampling efficiency. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the inside of the sampling tube of this utility model;

[0018] Figure 4 This is a schematic diagram of the extrusion device of this utility model;

[0019] Figure 5 This is a schematic diagram of the sampling tube of this utility model;

[0020] Figure 6 This is a schematic diagram of the collection funnel of this utility model;

[0021] Figure 7 This is a schematic cross-sectional view of the sampling tube of this utility model;

[0022] Figure 8 This is an enlarged schematic diagram of point A of this utility model.

[0023] In the diagram: 1. Sampling tube; 11. Collection funnel; 12. Collection chamber; 13. Fixing hole; 14. Fixing plate; 15. Magnetic block No. 1; 2. Piston; 3. Movable rod; 4. Protective cap; 5. Defoaming device; 51. Fixing frame; 52. Fixing block; 53. Fixing chamber; 531. Magnetic block No. 2; 54. Ultrasonic vibrator; 55. Extrusion device; 551. Telescopic motor; 552. Telescopic rod; 553. Fixing sleeve. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely represents some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and "back side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is conventionally placed during use. These terms are used only for the convenience of describing this utility model 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 utility model.

[0027] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 according to the specific circumstances.

[0028] This disclosure aims to address the problem that existing motor circuit board testing methods typically involve manual inspection of each component on the circuit board using specialized instruments. This method is time-consuming and prone to errors and omissions. Therefore, this disclosure proposes a transformer oil spectrometer sampling device. By incorporating new fixing and detection components, different motor circuit boards can be fixed in place, preventing displacement during testing. After the fixing components are in place, the circuit board is positioned using a marking grid within the detection component. Power is then applied to the circuit board, and a temperature sensor detects the temperature difference after a period of power-on. This temperature difference, combined with the marking grid, helps locate abnormal areas, thus completing the open / short circuit detection of the motor circuit board.

[0029] like Figures 1 to 8 As shown, a sampling device for a transformer oil spectrometer includes a sampling tube 1, a piston 2, a movable rod 3, and a protective cap 4. The piston 2 is installed inside the sampling tube 1, and the movable rod 3 is installed above the piston 2, with the movable rod 3 being coaxial with the sampling tube 1. A protective cap 4 is provided at the outlet of the sampling tube 1. The device is characterized by further including a collecting funnel 11 and a defoaming device 5. The collecting funnel 11 is positioned above the sampling tube 1, and the defoaming device 5 is fixed. The defoaming device 5 is used to remove tiny air bubbles inside the sampling tube 1 and simultaneously assists the sampling tube 1 in completing the detection.

[0030] By setting up a new defoaming device 5, air bubbles in the sampling tube 1 are expelled through ultrasonic vibration, thus achieving automatic defoaming after sampling is completed in the sampling tube 1, thereby avoiding the manual shaking defoaming process. At the same time, the aforementioned defoaming device 5 can effectively defoam by using ultrasonic vibration, and with the squeezing of the squeezing device 55, all air bubbles in the sampling tube 1 are expelled, further reducing the error of subsequent spectral analysis and improving sampling efficiency.

[0031] like Figures 1 to 4 As shown, the defoaming device 5 includes a fixing frame 51, a fixing block 52, a fixing chamber 53, an ultrasonic vibrator 54, and a squeezing device 55. The fixing block 52 is installed on the fixing frame 51 and is used to support the sampling tube 1. The fixing chamber 53, which is identical to the sampling tube 1, is opened on the fixing block 52 and is used to fix the sampling tube 1. The ultrasonic vibrator 54 is symmetrically installed inside the fixing block 52 and is used to vibrate and expel the air bubbles in the sampling tube 1. The squeezing device 55 is installed at the bottom of the fixing chamber 53 and is used to squeeze the movable rod 3, thereby expelling the air bubbles vibrated by the ultrasonic vibrator 54 from the sampling tube 1.

[0032] During operation, the sampling tube 1 is placed upside down in the fixed chamber 53. At this time, the squeezing device 55 is controlled to squeeze the movable rod 3. The squeezing device 55 drives the movable rod 3 to move upward. The upward moving movable rod 3 drives the piston 2 to move inside the sampling tube 1. In turn, in conjunction with the vibration of the ultrasonic vibrator 54, the air bubbles in the sampling tube 1 are discharged. That is, the high-frequency vibration of the ultrasonic vibrator 54 causes the air bubbles to enter the top of the sampling tube 1. Then, in conjunction with the push of the movable rod 3, the air bubbles are discharged from the outlet of the sampling tube 1, thus completing the air bubble removal work.

[0033] The above-mentioned defoaming device 5 can immediately defoam through an ultrasonic vibration device after sampling. The ultrasonic vibration device can quickly remove the foam. At the same time, the squeezing device 55 can squeeze the movable rod 3, thus avoiding the manual defoaming process. Compared with manual defoaming, it can remove bubbles better, thereby reducing detection errors and making the detection results more accurate.

[0034] like Figure 4 As shown, the extrusion device 55 includes a telescopic motor 551, a telescopic rod 552, and a fixed sleeve 553. The telescopic motor 551 is installed inside the fixed chamber 53 and is used to start and drive the telescopic rod 552 to extend. The output end of the telescopic motor 551 is equipped with the telescopic rod 552 for telescopic movement. The telescopic rod 552 is used to extend and drive the fixed sleeve 553 to move upward. The output end of the telescopic rod 552 is equipped with the fixed sleeve 553, which is used to move and drive the movable rod 3 to move upward.

[0035] During operation, the movable rod 3 is in contact with the fixed sleeve 553 under the limit of the fixed chamber 53. At this time, the sampling tube 1 has been completely inserted into the fixed chamber 53. At this time, in conjunction with the defoaming work of the defoaming device 5, the telescopic motor 551 is started. The started telescopic motor 551 drives the telescopic rod 552 to move upward. The upward moving telescopic rod 552 drives the fixed sleeve 553 to move upward. The upward moving fixed sleeve 553 drives the movable rod 3 to move, which in turn drives the piston 2 to move upward. During the defoaming process, in conjunction with the extrusion of the extrusion device 55, the extrusion of bubbles is completed.

[0036] The aforementioned extrusion device 55 can work in conjunction with the defoaming device 5 to better remove bubbles. The telescopic motor 551 drives the telescopic rod 552 to push the movable rod 3 and piston 2 at a uniform speed. At the same time, it can also push the sample to be tested into the spectrometer during spectral detection. No manual operation is required throughout the process, which improves the working efficiency of the sampling mechanism.

[0037] like Figure 6 As shown, a collection funnel 11 is detachably installed on the sampling tube 1. The collection funnel 11 can quickly collect transformer oil. The existing collection method usually involves opening the oil drain valve, releasing oil for a period of time, and then holding the sampling tube 1 to collect it. Since the diameter of the sampling tube 1 is different and the sampling tube 1 is cylindrical, the transformer oil will spill during the collection process. Therefore, the collection funnel 11 can quickly collect the transformer oil and prevent it from spilling.

[0038] like Figures 7 to 8 As shown, the sampling tube 1 is provided with a detachable collection chamber 12. The collection chamber 12 is used to collect the transformer oil flowing out during defoaming. The leakage of some transformer oil achieves the sealing of the sampling tube 1. Therefore, the design of a collection chamber 12 can collect the leakage of transformer oil, thereby preventing the transformer oil from flowing into the defoaming device 5 and causing damage to the defoaming device 5.

[0039] like Figure 8 As shown, the collection chamber 12 has a fixing hole 13 at its center, which is used for the sampling tube 1 to pass through and be fixed; and the cross-sectional shape of the collection chamber 12 is two symmetrical U-shapes. Setting the cross-section of the collection chamber 12 to two symmetrical U-shapes is to collect the transformer oil during the flow of transformer oil, and to prevent the transformer oil from flowing into the defoaming device 5. Setting it to a symmetrical U-shape can better prevent the transformer oil from flowing out along the wall of the sampling tube 1.

[0040] like Figure 3 and Figure 7As shown, a fixing plate 14 is installed on the sampling tube 1, and the fixing plate 14 is used to install a first magnetic block 15. The first magnetic block 15 is installed on the fixing plate 14, and the first magnetic block 15 is used to cooperate with a corresponding second magnetic block 531 installed in the fixing chamber 53 to fix the sampling tube 1. The design of the first magnetic block 15 and the second magnetic block 531 realizes the rapid fixation of the sampling tube 1 in the fixing chamber 53, thereby ensuring the stability in the subsequent working process.

[0041] During operation, the movable rod 3 is in contact with the fixed sleeve 553 under the limit of the fixed chamber 53. At this time, the sampling tube 1 has been completely inserted into the fixed chamber 53. At this time, in conjunction with the defoaming work of the defoaming device 5, the telescopic motor 551 is started. The started telescopic motor 551 drives the telescopic rod 552 to move upward. The upward moving telescopic rod 552 drives the fixed sleeve 553 to move upward. The upward moving fixed sleeve 553 drives the movable rod 3 to move, which in turn drives the piston 2 to move upward. During the defoaming process, in conjunction with the extrusion of the extrusion device 55, the extrusion of bubbles is completed.

[0042] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sampling device for a transformer oil spectrometer, comprising a sampling tube (1), a piston (2), a movable rod (3), and a protective cap (4); the piston (2) is installed inside the sampling tube (1), and the movable rod (3) is installed above the piston (2), the movable rod (3) being coaxial with the sampling tube (1); a protective cap (4) is provided at the outlet of the sampling tube (1); characterized in that, It also includes a collection funnel (11) and a defoaming device (5). The collection funnel (11) is positioned above the sampling tube (1), and the defoaming device (5) is fixed. The defoaming device (5) is used to remove tiny air bubbles in the sampling tube (1) and works in conjunction with the sampling tube (1) to complete the detection.

2. The sampling device for a transformer oil spectral analyzer according to claim 1, characterized in that: The defoaming device (5) includes a fixed frame (51), a fixed block (52), a fixed chamber (53), an ultrasonic vibrator (54), and a squeezing device (55). The fixed frame (51) is equipped with a fixed block (52), and the fixed block (52) has a fixed chamber (53) that is consistent with the sampling tube (1). The ultrasonic vibrator (54) is symmetrically installed in the fixed block (52), and the squeezing device (55) is installed at the bottom of the fixed chamber (53).

3. The sampling device for a transformer oil spectral analyzer of claim 2, wherein: The extrusion device (55) includes a telescopic motor (551), a telescopic rod (552), and a fixing sleeve (553). The telescopic motor (551) is installed inside the fixing chamber (53). The output end of the telescopic motor (551) is equipped with a telescopic rod (552) for telescopic extension and retraction, and the output end of the telescopic rod (552) is equipped with a fixing sleeve (553).

4. The sampling device for a transformer oil spectral analyzer of claim 3, wherein: A collection funnel (11) is detachably provided on the sampling tube (1).

5. The sampling device for a transformer oil spectral analyzer of claim 4, wherein: The sampling tube (1) is provided with a detachable collection chamber (12).

6. The sampling device for a transformer oil spectral analyzer of claim 5, wherein: The collecting cavity (12) has a fixing hole (13) at its center, and the cross-sectional shape of the collecting cavity (12) is two symmetrical U-shapes.

7. The sampling device for a transformer oil spectral analyzer of claim 6, wherein: A fixing plate (14) is installed on the sampling tube (1), a first magnetic block (15) is installed on the fixing plate (14), and a corresponding second magnetic block (531) is installed in the fixing chamber (53).

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