A transformer debugging oil liquid filtering and separating device
By designing a transformer commissioning oil filtration and separation device, solid-liquid separation is achieved using a filter plate and a storage cylinder, solving the problem of impurities in the sampling bottle affecting the detection and ensuring the accuracy and sealing of the test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA MCC 2 GRP CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-26
AI Technical Summary
The existing sampling bottle has a simple structure, which allows impurities in the transformer oil to enter the testing process, affecting the accuracy of the test results.
A transformer commissioning oil filtration and separation device was designed, comprising a bottle body, a removable bottle cap, and an internal filter chamber. Solid-liquid separation is achieved through a filter plate and a storage cylinder, and a pull bar and a limit block are used to ensure sealing.
It effectively filters out particulate impurities in the oil, ensuring the accuracy of test results and improving the sealing of the cover plate to prevent impurities from entering subsequent maintenance processes.
Smart Images

Figure CN224286486U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer commissioning oil sampling and testing technology, and more specifically, to a transformer commissioning oil filtration and separation device. Background Technology
[0002] During transformer commissioning, in order to determine the operating status of the equipment and whether the oil needs to be replaced or treated, it is necessary to sample and analyze the oil inside the transformer. Currently, sampling personnel usually use sampling bottles to sample transformer oil.
[0003] Existing sampling bottles mainly consist of a bottle body and a cap. During long-term operation, transformer oil may become contaminated with various impurities, such as metal particles or fibers from wear of internal transformer components. Due to the relatively simple overall structure of the sampling bottle, these impurities may enter the sampling bottle along with the oil and proceed to subsequent testing, thus seriously interfering with the test results, leading to inaccurate test data, and consequently affecting the judgment and decision-making regarding the equipment's operating status. Therefore, there is an urgent need to propose a new transformer commissioning oil sampling device to solve the above problems. Utility Model Content
[0004] In view of this, the present invention proposes a transformer commissioning oil filtration and separation device, comprising:
[0005] Bottle body;
[0006] A bottle cap is detachably connected to the outside of the bottle opening of the bottle body. A filter chamber is provided inside the bottle cap. When the bottle cap is connected to the bottle opening, the filter chamber is placed inside the bottle opening. The filter chamber can communicate with the inner cavity of the bottle body. A detachable cover plate is provided on the filter chamber so that the oil to be tested can enter the bottle body through the filter chamber and the oil inlet of the filter chamber is covered and sealed by the cover plate.
[0007] Furthermore, the filter chamber includes a storage cylinder and a filter plate; the storage cylinder is cylindrical and integrally formed with the bottle cap, and an annular space is formed between the storage cylinder and the inner wall of the bottle cap. When the bottle mouth is connected to the bottle cap, the bottle mouth is inserted into the annular space. The filter plate is connected to the bottom of the storage cylinder, and the oil to be tested can enter the bottle body through the filter plate.
[0008] Furthermore, a sealing plug is provided below the cover plate corresponding to the filter chamber, and the diameter of the sealing plug is adapted to the size of the oil inlet of the filter chamber.
[0009] Furthermore, the outer wall of the bottle cap is provided with multiple connecting strips.
[0010] Furthermore, multiple connecting strips are distributed in a ring array structure on the outer wall of the bottle cap.
[0011] Furthermore, the cover plate is provided with pull strips, including two symmetrically arranged along the cover plate, which can engage the cover plate with the upper end of the bottle cap, making the seal of the cover plate on the filter chamber more secure.
[0012] Furthermore, the pull bar is an L-shaped pull bar, with an elastic element and a limiting block at its first end, and its second end flush with the surface of the cover plate. The side of the cover plate has a receiving groove corresponding to the elastic element. The elastic element connects the receiving groove and the first end of the L-shaped pull bar, and can drive the L-shaped pull bar to slide through its elastic action. The bottle cap has a positioning groove corresponding to the limiting block, and the limiting block can be engaged in the positioning groove, thereby locking the cover plate onto the bottle cap through the pull bar.
[0013] Furthermore, the elastic element includes a connecting rod and a connecting spring. One end of the connecting spring is connected to the end of the receiving groove, and the other end is connected to the connecting rod. The connecting rod is connected to the first end of the L-shaped pull strip. Pulling the second end of the L-shaped pull strip can cause the first end of the L-shaped pull strip to slide, thereby causing the limiting block to disengage from the positioning groove, so that the cover plate can be removed from the bottle cap. When locking the cover plate, the pulling force of the connecting spring can cause the limiting block connected to the second end of the L-shaped pull strip to engage with the positioning groove, thereby locking the cover plate on the bottle cap and sealing the filter chamber.
[0014] Furthermore, the dimensions of the receiving groove are adapted to the dimensions of the connecting rod and the connecting spring.
[0015] Furthermore, the size of the limiting block is adapted to the size of the positioning groove.
[0016] This utility model provides a transformer commissioning oil sampling, filtering, and separation device with the following advantages: The device, equipped with a storage cylinder and a filter plate, can perform solid-liquid separation of the transformer oil through the cooperation of the storage cylinder and the filter plate during use. It can also filter out particulate impurities mixed in with the oil, separating them from the oil phase and preventing them from entering subsequent maintenance processes, thus effectively ensuring the accuracy of the test results. Furthermore, the device is equipped with a pull bar and a limiting block. During the process of the cover plate covering the cap, the cooperation of the limiting block and the pull bar can achieve a locking operation of the cover plate, thereby effectively improving the tightness of the cover plate during the covering process. Attached Figure Description
[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0018] Figure 1 This is a three-dimensional structural diagram of the separation device provided in an embodiment of the present utility model;
[0019] Figure 2 A cross-sectional structural schematic diagram of the separation device provided in an embodiment of this utility model;
[0020] Figure 3 A schematic diagram of the structure of the bottle cap and filter chamber provided in this embodiment of the utility model;
[0021] Figure 4 Provided for the embodiments of this utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0022] In the diagram, 1. Bottle body, 2. Bottle cap, 3. Filter chamber, 4. Cover plate, 5. Circular space, 6. Connecting strip, 7. Pull strip.
[0023] 11. Bottle neck; 21. Positioning groove; 31. Oil inlet; 32. Storage cylinder; 33. Filter plate; 41. Sealing plug; 42. Receiving groove; 71. Connecting rod; 72. Connecting spring; 73. Limiting block. Detailed Implementation
[0024] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0025] See Figure 1-4As shown, a transformer debugging oil filtration and separation device is characterized by comprising a bottle body 1 and a bottle cap 2; the bottle cap 2 is detachably connected to the outside of the bottle opening 11 of the bottle body 1, and a filter chamber 3 is provided inside the bottle cap 2. When the bottle cap 2 is connected to the bottle opening 11, the filter chamber 3 is placed inside the bottle opening 11, and the filter chamber 3 can communicate with the inner cavity of the bottle body 1. A detachable cover plate 4 is correspondingly provided on the filter chamber 3, allowing the oil to be debugged to enter the bottle body 1 through the filter chamber 3, and the cover plate 4 covers and seals the oil inlet 31 of the filter chamber 3. Specifically, through the filter chamber 3, particulate impurities mixed in with the oil to be debugged can be filtered and separated from the oil phase, thereby preventing them from entering subsequent maintenance processes and effectively ensuring the accuracy of test results.
[0026] Reference Figure 2-3 As shown, the filter chamber 3 includes a storage cylinder 32 and a filter plate 33; the storage cylinder 32 is cylindrical and integrally formed with the bottle cap 2, and an annular space 5 is formed between the storage cylinder 32 and the inner wall of the bottle cap 2. When the bottle mouth 11 is connected to the bottle cap 2, the bottle mouth 11 is inserted into the annular space 5. The filter plate 33 is connected to the bottom of the storage cylinder 32, and the oil to be tested can enter the interior of the bottle body 1 through the filter plate 33.
[0027] Continue to refer to Figure 2-3 As shown, a sealing plug 41 is provided below the cover plate 4 corresponding to the filter chamber 3, and the diameter of the sealing plug 41 is adapted to the size of the oil inlet 31 of the filter chamber 3.
[0028] Reference Figure 1 As shown, the outer wall of the bottle cap 2 is provided with multiple connecting strips 6. In this embodiment, the multiple connecting strips 6 are distributed in a ring array structure on the outer wall of the bottle cap 2.
[0029] Reference Figure 2-4 As shown, the cover plate 4 is provided with a pull strip 7, which includes two symmetrically arranged along the cover plate 4, which can lock the cover plate 4 onto the upper end of the bottle cap 2, so that the cover plate 4 can seal the filter chamber 3 more firmly.
[0030] Continue to refer to Figure 2-4As shown, the pull bar 7 is an L-shaped pull bar with an elastic element and a limiting block 73 at its first end, and its second end is flush with the surface of the cover plate 4. The side of the cover plate 4 is provided with a receiving groove 42 corresponding to the elastic element. The elastic element connects the receiving groove 42 and the first end of the L-shaped pull bar (7), and can drive the L-shaped pull bar (7) to slide through its elastic action. The bottle cap 2 is provided with a positioning groove 21 corresponding to the limiting block 73. The limiting block 73 can be engaged in the positioning groove 21, thereby locking the cover plate 4 onto the bottle cap 2 through the pull bar 7.
[0031] Reference Figure 4 As shown, the elastic element includes a connecting rod 71 and a connecting spring 72. One end of the connecting spring 72 is connected to the end of the receiving groove 42, and the other end is connected to the connecting rod 71. The connecting rod 71 is connected to the first end of the L-shaped pull strip (7). Pulling the second end of the L-shaped pull strip (7) can cause the first end of the L-shaped pull strip (7) to slide, thereby causing the limiting block 73 to disengage from the positioning groove, so that the cover plate 4 can be removed from the bottle cap 2. When locking the cover plate 4, the pulling force of the connecting spring 72 can cause the limiting block 73 connected to the second end of the L-shaped pull strip (7) to engage with the positioning groove 21, thereby locking the cover plate 4 on the bottle cap 2 and sealing the filter chamber 3.
[0032] In this embodiment, the size of the receiving groove 42 is adapted to the size of the connecting rod 71 and the connecting spring 72.
[0033] In this embodiment, the size of the limiting block 73 is adapted to that of the positioning groove 21.
[0034] The working principle of a transformer commissioning oil sampling, filtering and separation device disclosed in this embodiment of the utility model is as follows:
[0035] The staff can first transfer the device to the testing area, and then pull the two sets of pull strips 7 according to the principle of mutual force, so that the limiting block 73 connected to the inner side of the pull strip 7 can move in the opposite direction. At this time, the staff can pull the pull strip 7 to make the cover plate 4 and the sealing plug 41 simultaneously receive the force and remove them from the top of the bottle cap 2. Then the staff can tilt the device slightly and use the oil inlet 31 inside the bottle cap 2 to guide the oil into the filter chamber 3. The filter plate 33 at the bottom of the storage cylinder 32 can separate and filter the particles, while the oil will enter the bottle body 1 for storage through the screen inside the filter plate 33. After sampling, the staff can pull the two sets of pull strips 7 again to move them, so that the cover plate 4 can cover the bottle cap 2. At this time, the oil is located below the filter plate 33, and the impurities are temporarily stored inside the filter chamber 3.
[0036] When the device is transported to the testing and sampling location, the staff can first rotate the bottle cap 2 to pull the filter chamber 3 out from the inside of the bottle body 1. At the same time, the top opening of the bottle body 1 can be opened so that the oil can be poured out from the inside of the bottle body 1 for testing. Then, the staff can open the cover plate 4 and pour out the impurities stored in the filter chamber 3 for separate testing and analysis to determine the condition of the transformer.
[0037] This utility model provides a transformer commissioning oil sampling, filtering, and separation device with the following advantages: The device, equipped with a storage cylinder and a filter plate, can perform solid-liquid separation of the transformer oil through the cooperation of the storage cylinder and the filter plate during use. It can also filter out particulate impurities mixed in with the oil, separating them from the oil phase and preventing them from entering subsequent maintenance processes, thus effectively ensuring the accuracy of the test results. Furthermore, the device is equipped with a pull bar and a limiting block. During the process of the cover plate covering the cap, the cooperation of the limiting block and the pull bar can achieve a locking operation of the cover plate, thereby effectively improving the tightness of the cover plate during the covering process.
[0038] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0039] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 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.
[0040] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A transformer commissioning oil liquid filtration and separation device, characterized by, include: Bottle body; A bottle cap is detachably connected to the outside of the bottle opening of the bottle body. A filter chamber is provided inside the bottle cap. When the bottle cap is threadedly connected to the bottle opening, the filter chamber is placed inside the bottle opening. The filter chamber can communicate with the inner cavity of the bottle body. A detachable cover plate is provided on the filter chamber so that the oil to be tested can enter the bottle body through the filter chamber and the oil inlet of the filter chamber is covered and sealed by the cover plate.
2. The transformer commissioning oil filtration and separation device according to claim 1, characterized in that, The filter chamber includes a storage cylinder and a filter plate; the storage cylinder is cylindrical and integrally formed with the bottle cap, and an annular space is formed between the storage cylinder and the inner wall of the bottle cap. When the bottle mouth is connected to the bottle cap, the bottle mouth is inserted into the annular space. The filter plate is connected to the bottom of the storage cylinder, and the oil to be tested can enter the bottle body through the filter plate.
3. The transformer commissioning oil filtration and separation device according to claim 1, characterized in that, A sealing plug is provided below the cover plate corresponding to the filter chamber, and the diameter of the sealing plug is adapted to the size of the oil inlet of the filter chamber.
4. The transformer commissioning oil filtration and separation device according to claim 1, characterized in that, The outer wall of the bottle cap is provided with multiple connecting strips.
5. The transformer commissioning oil filtration and separation device according to claim 4, characterized in that, Multiple connecting strips are arranged in a ring array on the outer wall of the bottle cap.
6. The transformer commissioning oil filtration and separation device according to any one of claims 1-5, characterized in that, The cover plate is provided with a pull strip, which includes two strips symmetrically arranged along the cover plate, which can lock the cover plate onto the upper end of the bottle cap, making the cover plate more securely seal the filter chamber.
7. The transformer commissioning oil filtration and separation device according to claim 6, characterized in that, The pull bar is an L-shaped pull bar with an elastic element and a limiting block at its first end, and its second end flush with the surface of the cover plate. The side of the cover plate has a receiving groove corresponding to the elastic element. The elastic element connects the receiving groove and the first end of the L-shaped pull bar, and can drive the L-shaped pull bar to slide through its elastic action. The bottle cap has a positioning groove corresponding to the limiting block, and the limiting block can be engaged in the positioning groove, thereby locking the cover plate to the bottle cap through the pull bar.
8. The transformer commissioning oil filtration and separation device according to claim 7, characterized in that, The elastic element includes a connecting rod and a connecting spring. One end of the connecting spring is connected to the end of the receiving groove, and the other end is connected to the connecting rod. The connecting rod is connected to the first end of the L-shaped pull strip. Pulling the second end of the L-shaped pull strip can cause the first end of the L-shaped pull strip to slide, thereby disengaging the limiter from the positioning groove and allowing the cover plate to be removed from the bottle cap. When locking the cover plate, the tension of the connecting spring can cause the limiter block connected to the second end of the L-shaped pull strip to engage with the positioning groove, thereby locking the cover plate on the bottle cap and sealing the filter chamber.
9. The transformer commissioning oil filtration and separation device according to claim 8, characterized in that, The dimensions of the receiving groove are adapted to the dimensions of the connecting rod and the connecting spring.
10. The transformer commissioning oil filtration and separation device according to claim 7, characterized in that, The limiting block is adapted to the size of the positioning groove.