A transformer oil extraction system

Abstract

This utility model belongs to the field of power equipment maintenance technology and provides a transformer oil sampling system, including a support, a valve, and an external oil pipe. The support is installed on the ground; the valve is installed on the support; one end of the external oil pipe is connected to the pipeline upstream of the manual oil sampling port, and the other end of the external oil pipe is connected to the valve inlet. This transformer oil sampling system leads the pipeline from the manual oil sampling port to the valve through the external oil pipe. When oil is needed, the valve can be opened directly at the support to extract oil. Without affecting the original manual oil sampling function, it provides a safer and more convenient oil passage, significantly improving safety and convenience for both manual and robotic oil sampling. Furthermore, by setting up a protective cover and annular cover, the valve can be protected from long-term exposure to sunlight and rain, extending the service life of the equipment.

Description

Technical Field

[0001] This utility model belongs to the field of power equipment maintenance technology, specifically relating to a transformer oil sampling system. Background Technology

[0002] During operation, oil-immersed transformers require regular sampling and analysis of the insulating oil (to test for moisture, gas content, dielectric strength, etc.) to assess the insulation condition of the equipment.

[0003] Traditional oil extraction methods involve manual on-site extraction, which has the following drawbacks:

[0004] Traditional oil sampling ports are typically located on the side or bottom of the transformer body. Operators must be in close proximity to live equipment and perform oil sampling in a confined space, which easily leads to electric shock or mechanical collision accidents. Manual oil sampling poses a particularly high safety risk when the transformer is faulty. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a transformer oil extraction system that can solve the aforementioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a transformer oil extraction system, comprising a support, a valve, and an external oil inlet pipe;

[0007] The bracket is installed on the ground;

[0008] The valve is mounted on the bracket;

[0009] One end of the external oil inlet pipe is connected to the pipeline upstream of the manual oil intake port, and the other end of the external oil inlet pipe is connected to the valve inlet.

[0010] Preferably, the support includes a column and a protective cover. The protective cover is mounted on the column and has an opening on one side. The valve is mounted on the inner wall of the protective cover and has a through hole on the inner wall. The valve inlet extends through the through hole to the outside of the protective cover.

[0011] Preferably, the protective cover has an annular cover on the side wall facing away from the opening, and the through hole is located inside the annular cover.

[0012] Preferably, the annular cover includes a U-shaped seat and a cover plate that overlaps the top of the U-shaped seat.

[0013] Preferably, a connecting plate is fixed to the top of the column, and the protective cover is installed on the connecting plate.

[0014] Preferably, the bottom end of the column is fixed with a base plate, and the base plate is fixed to the ground by bolts.

[0015] Preferably, the chassis is provided with an arc-shaped hole for bolts to pass through.

[0016] Preferably, the valve is a solenoid valve or a ball valve.

[0017] Preferably, the external oil inlet pipe is connected to the pipeline via a tee.

[0018] Preferably, the external oil inlet pipe is equipped with a stopcock valve.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model provides a transformer oil extraction system that connects the manual oil extraction port to a valve via an external oil inlet pipe. When oil extraction is needed, the valve can be opened directly at the support to extract the oil. Without affecting the original manual oil extraction function, it provides a safer and more convenient oil path, significantly improving safety and convenience for both manual and robotic oil extraction.

[0021] 2. The transformer oil extraction system provided by this utility model can protect the valve by setting a protective cover and an annular cover, avoiding long-term exposure to sunlight and rain, and extending the service life of the equipment. Attached Figure Description

[0022] Figure 1 This is a front view structural diagram of a transformer oil sampling system provided in an embodiment of the present utility model;

[0023] Figure 2 A front view schematic diagram of the support and valve of a transformer oil sampling system provided for an embodiment of this utility model;

[0024] Figure 3 One of the three-dimensional structural schematic diagrams of a valve in a transformer oil sampling system provided for an embodiment of this utility model;

[0025] Figure 4 A second three-dimensional structural schematic diagram of a valve in a transformer oil extraction system provided for an embodiment of this utility model;

[0026] Figure 5 A three-dimensional structural diagram of a support for a transformer oil sampling system provided in an embodiment of this utility model;

[0027] Figure 6 A rear view structural schematic diagram of a support structure for a transformer oil sampling system provided in an embodiment of this utility model;

[0028] Figure 7 A top view of the chassis of a transformer oil sampling system provided in this embodiment of the present invention;

[0029] Figure 8 for Figure 1 Enlarged diagram of point A in the middle.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Bracket; 101. Column; 102. Protective cover; 103. Through hole; 104. Connecting plate; 105. Base; 106. Arc-shaped hole; 107. U-shaped seat; 108. Cover plate;

[0032] 2. Valves;

[0033] 3. External oil inlet pipe;

[0034] 4. Manual oil extraction port;

[0035] 5. Piping;

[0036] 6. T-junction;

[0037] 7. Plug valve;

[0038] 8. Switch button. Detailed Implementation

[0039] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0040] This embodiment provides a transformer oil extraction system, including a support 1, a valve 2, and an external oil pipe 3.

[0041] Among them, bracket 1 is installed on the ground;

[0042] Valve 2 is mounted on bracket 1;

[0043] One end of the external oil inlet pipe 3 is connected to the pipeline 5 upstream of the manual oil inlet 4, and the other end of the external oil inlet pipe 3 is connected to the inlet of the valve 2.

[0044] For example, see Figure 1-4 The bracket 1 is installed on the ground next to the axial flow fan control cabinet for easy access by robots and personnel. Valve 2 is a sealing valve, which is bolted to the bracket 1. The left end of pipe 5 connects to the transformer body, and the right end of pipe 5 has a manual oil tap 4, which is normally closed. The external oil pipe 3 is a T2 copper pipe with a specification of φ8*1, protected by a φ32 galvanized corrugated pipe. The left end of the external oil pipe 3 connects to pipe 5, and the right end of the external oil pipe 3 connects to the inlet of valve 2, using a φ8 metal compression fitting.

[0045] Based on the above structure, the transformer oil extraction system provided in this embodiment allows for manual oil extraction by simply opening valve 2 at bracket 1, eliminating the need to approach the transformer body. This allows for operation in confined spaces without affecting the original manual oil extraction function, while providing a safer oil passage and significantly improving safety and convenience.

[0046] When using a robot to collect oil, the robot moves to support 1, and the robotic arm aligns and connects the robot's sampling tube with the outlet of valve 2. Valve 2 is then opened to connect the robot's sampling tube with the external oil inlet pipe 3, allowing oil collection to begin. This allows the transformer oil in pipeline 5 to enter the external oil inlet pipe 3, and then through valve 2 into the robot's sampling tube.

[0047] Valve 2 can be a solenoid valve or a ball valve. See also Figure 3 Valve 2 is equipped with a switch button 8. By pressing and holding the switch button 8, valve 2 can be opened, and by releasing the switch button 8, valve 2 can be closed. Valve 2 can also be remotely controlled via a controller.

[0048] Based on the above technical solution, in the technical solution provided in this embodiment, the external oil pipe 3 and the pipeline 5 are connected by a tee 6;

[0049] A stopcock valve 7 is installed on the external oil pipe 3.

[0050] For example, see Figure 1 , Figure 8 Pipeline 5 is disconnected at one point. The first and second ends of the tee 6 are connected to the two disconnected ends of pipeline 5, respectively. The external oil lead pipe 3 is connected to the third end of the tee 6, so that the transformer oil in pipeline 5 can smoothly enter the external oil lead pipe 3. The external oil lead pipe 3 is equipped with a stop valve 7, which is a screw-tight shaft-sealed valve structure, which can flexibly control the opening and closing of the external oil lead pipe 3, facilitating pipeline installation and maintenance.

[0051] This embodiment provides a specific implementation of the bracket 1: the bracket 1 includes a column 101 and a protective cover 102. The protective cover 102 is installed on the column 101. The protective cover 102 has an opening on one side. The valve 2 is installed on the inner wall of the protective cover 102. The inner wall of the protective cover 102 is provided with a through hole 103. The inlet of the valve 2 extends through the through hole 103 to the outside of the protective cover 102.

[0052] For example, see Figure 2The column 101 is vertically installed, with a height of 0.9m. A base plate 105 is coaxially fixed to the bottom of the column 101, and the base plate 105 is bolted to the ground. A connecting plate 104 is fixed to the top of the column 101, and a protective cover 102 is bolted to the connecting plate 104. The protective cover 102 is a box-type structure with an opening on the front, and the opening size of the protective cover 102 is 0.6*0.4m. The valve 2 is bolted to the inner wall of the protective cover 102.

[0053] See Figure 5 The inner wall of the protective cover 102 is also provided with a through hole 103. When the valve 2 is installed on the inner wall of the protective cover 102, the inlet of the valve 2 extends through the through hole 103 to the rear side of the protective cover 102. That is, the external oil pipe 3 and the inlet of the valve 2 are connected on the rear side of the protective cover 102, which can prevent the external oil pipe 3 from entering the inside of the protective cover 102 and interfering with subsequent manual or robotic oil collection. The inlet of the valve 2 should maintain a distance of more than 150mm from the wall. Secondly, the laying of the external oil pipe 3 should avoid on-site pipelines, electrical ducts, electrical cabinets, etc., to ensure a reasonable layout, minimize bends, reduce oil sample flow resistance, and meet the requirements of the robot for oil sample volume and collection speed.

[0054] The top plate of the protective cover 102 has a larger planar dimension than the bottom plate, which provides good shading, preventing long-term exposure to sunlight and rain, and extending the service life of the equipment. It also facilitates oil extraction and prevents interference between the bottom of the protective cover 102 and the oil extraction facility.

[0055] The protective cover 102 has an annular cover on the side wall facing away from the opening, and the through hole 103 is located inside the annular cover; the annular cover includes a U-shaped seat 107 and a cover plate 108 that overlaps the top of the U-shaped seat 107.

[0056] For example, see Figure 6 A U-shaped seat 107 is bolted to the rear side wall of the protective cover 102. The top of the U-shaped seat 107 is open, and a cover plate 108 overlaps the top opening of the U-shaped seat 107. The cover plate 108 and the U-shaped seat 107 together form an annular cover. The through hole 103 is located inside the annular cover, that is, the connection node between the external oil pipe 3 and the inlet of the valve 2 is located inside the annular cover. The annular cover can play a protective role. When it is necessary to disassemble the connection node between the external oil pipe 3 and the inlet of the valve 2, the cover plate 108 can be lifted upwards to remove the cover plate 108, making it convenient to use a wrench or other tools to disassemble the connection node between the external oil pipe 3 and the inlet of the valve 2.

[0057] The chassis 105 is provided with an arc-shaped hole 106 for bolts to pass through;

[0058] For example, see Figure 7The chassis 105 has three arc-shaped holes 106, evenly spaced circumferentially, each corresponding to a bolt. Inserting the bolts through the arc-shaped holes 106 into the ground secures the chassis 105. The positioning of the column 101 should match the robot's oil-collecting point for subsequent automatic oil collection. The arc-shaped holes 106 allow the chassis 105 to rotate freely, thus adjusting the orientation of the protective cover 102 and the valve 2 to meet the robot's automatic oil-collecting requirements.

[0059] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0062] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A transformer oil extraction system, characterized by, Includes bracket (1), valve (2), and external oil pipe (3); The bracket (1) is installed on the ground; The valve (2) is mounted on the bracket (1); One end of the external oil pipe (3) is connected to the pipeline (5) upstream of the manual oil intake port (4), and the other end of the external oil pipe (3) is connected to the inlet of the valve (2).

2. A transformer oil removal system according to claim 1, wherein The support (1) includes a column (101) and a protective cover (102). The protective cover (102) is installed on the column (101). The protective cover (102) has an opening on one side. The valve (2) is installed on the inner wall of the protective cover (102). The inner wall of the protective cover (102) is provided with a through hole (103). The inlet of the valve (2) extends through the through hole (103) to the outside of the protective cover (102).

3. A transformer oil removal system according to claim 2, wherein The protective cover (102) has an annular cover on the side wall facing away from the opening, and the through hole (103) is located inside the annular cover.

4. A transformer oil removal system according to claim 3, wherein The annular cover includes a U-shaped seat (107) and a cover plate (108) that overlaps the top of the U-shaped seat (107).

5. A transformer oil removal system according to claim 2, wherein A connecting plate (104) is fixed to the top of the column (101), and the protective cover (102) is installed on the connecting plate (104).

6. A transformer oil removal system according to claim 2, wherein The bottom end of the column (101) is fixed with a base plate (105), which is fixed to the ground by bolts.

7. A transformer oil removal system according to claim 6, wherein The chassis (105) is provided with an arc-shaped hole (106) for bolts to pass through.

8. The transformer oil removal system of claim 1, wherein, The valve (2) is a solenoid valve or a ball valve.

9. The transformer oil removal system of claim 1, wherein, The external oil pipe (3) is connected to the pipeline (5) via a tee (6).

10. The transformer oil removal system of claim 1, wherein, The external oil pipe (3) is equipped with a plug valve (7).

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