A transformer oil flow guiding component

Abstract

This utility model discloses a transformer oil flow guiding component, belonging to the technical field of flow guiding components. The transformer oil flow guiding component includes an integrally formed funnel with a flow channel for insulating oil. An integrally formed guide pipe for air exchange between the inside and outside of the transformer is provided on the inner wall of the funnel. A cover plate for dust isolation is rotatably connected to the oil inlet end of the funnel. A limit seal is detachably installed on the funnel. An arc-shaped notch for placing an oil delivery pipeline is also provided at the oil inlet end of the funnel. Through the guide pipe, during air exchange, the insulating oil flows downwards into the transformer through the flow channel in the funnel, while the air inside the transformer can be discharged outwards along the guide pipe. The outward bends prevent air resistance during insulating oil injection, thus avoiding reduced oil replenishment efficiency.

Description

Technical Field

[0001] This utility model relates to the field of flow guiding components, and in particular to a transformer oil flow guiding component. Background Technology

[0002] In rural power distribution transformer maintenance scenarios, when encountering situations where the amount of oil to be added is small or the working height is low, a funnel combined with an oil filling barrel is usually used to carry out oil replenishment operations. It is worth noting that before replenishing the oil, the insulating oil needs to be pretreated with an oil purifier or filter device before it can be replenished into the transformer through pipelines.

[0003] There are currently two main methods for replenishing oil: one is to directly pour the oil, and the other is to use a pipeline combined with the siphon principle. However, since the transformer oil inlet is small, both methods require the use of a funnel to guide the flow in order to avoid spilling the insulating oil.

[0004] In existing technologies, the oil replenishment process has certain problems: First, when using the direct pouring method, the narrow size of the transformer oil inlet poses a high risk of oil spillage during operation. Second, even when using a funnel to assist in oil replenishment, most funnels on the market have an open structure, making it easy for dust and other impurities in the air to mix into the insulating oil during the replenishment process, which adversely affects the quality of the insulating oil. Third, transformer oil inlet diameters vary, and existing funnels often cannot be well adapted to oil inlets of different diameters, which greatly reduces the convenience and accuracy of the oil replenishment operation. Therefore, we urgently need a transformer oil guiding component to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art where direct pouring leads to transformer oil spillage, the use of funnels for oil replenishment results in dust contact with insulating oil due to their open design, and the funnels cannot be adapted to various transformer oil inlet diameters. Therefore, this invention proposes a transformer oil guiding component.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A transformer oil guiding assembly includes an integrally formed funnel with a flow channel for insulating oil to flow inside. The inner wall of the funnel is provided with a guide pipe integrally formed therewith for air exchange between the inside and outside of the transformer. The oil inlet end of the funnel is rotatably connected to a cover plate for isolating dust. A limit seal is detachably installed on the funnel. The oil inlet end of the funnel is also provided with an arc-shaped notch for placing an oil pipeline.

[0007] To accommodate oil inlets of various diameters, preferably, the limiting seal includes a connecting seat, which is threaded onto the funnel. The connecting seat has an annular groove that varies in gradient from top to bottom along the axis of the funnel, and a sealing strip is fixedly installed on the annular groove.

[0008] To avoid affecting the pouring of insulating oil, preferably, the guide tube and the inner wall of the funnel are located on the same plane.

[0009] To prevent insulating oil from entering the guide tube, preferably, both ends of the guide tube are bent outwards.

[0010] To seal the oil inlet end of the funnel, preferably, a second sealing strip is fixedly installed on the cover plate. When the cover plate contacts the end of the funnel, the second sealing strip abuts against the inner wall of the oil inlet end of the funnel.

[0011] To improve sealing performance, preferably, both sealing strip one and sealing strip two are made of nitrile rubber.

[0012] Compared with the prior art, the present invention provides a transformer oil flow guiding component, which has the following beneficial effects: 1. The transformer oil guiding assembly, through the setting of the guide pipe, allows the insulating oil to flow downward into the transformer through the channel in the funnel during the air exchange process. The air inside the transformer can be discharged outward along the guide pipe. The outward bend can avoid the formation of air resistance during the injection of insulating oil, thus reducing the oil replenishment efficiency.

[0013] 2. The transformer oil diversion assembly, through the setting of the cover plate, can be flipped to seal the oil inlet end of the funnel when oil is added, effectively reducing the contact between dust and insulating oil during the oil replenishment process. In a clean working environment, the cover plate can be opened freely, and the cover plate can reduce the entry of dust when the funnel is stored.

[0014] 3. The transformer oil guiding assembly, through the setting of the connecting seat and the opening of the annular groove, can adapt to and seal various oil inlet diameters due to the existence of different oil inlet diameters, thus improving the compatibility between the funnel and the oil inlet.

[0015] The parts of this device not described herein are the same as or can be implemented using existing technologies. This utility model avoids spillage during the oil filling process and reduces the contact between dust and insulating oil in the working environment mentioned in the background art, which affects the quality of the insulating oil. It can be well adapted to the transformer oil filling port. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a transformer oil flow guiding assembly proposed in this utility model; Figure 2 This is a schematic diagram of the coverless overall structure of a transformer oil flow guiding assembly proposed in this utility model; Figure 3 This is a partial cross-sectional view of a transformer oil flow guiding assembly proposed in this utility model. Figure 4 This is a schematic diagram of the connection seat structure of a transformer oil flow guiding component proposed in this utility model.

[0017] In the diagram: 1. Funnel; 2. Flow channel; 3. Guide tube; 4. Cover plate; 5. Sealing strip two; 6. Arc-shaped notch; 7. Connecting seat; 8. Annular groove; 9. Sealing strip one. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0020] Example: Reference Figures 1-4 A transformer oil guiding component includes an integrally molded funnel 1, wherein the funnel 1 is integrally injection molded, and a flow channel 2 for insulating oil to flow is provided inside the funnel 1. The flow channel 2 is divided into an upper flow channel and a lower flow channel, wherein the upper flow channel is conical to avoid spillage of insulating oil, and the lower flow channel is a straight pipe to increase the speed at which insulating oil enters the transformer. The inner wall of the funnel 1 is provided with a guide pipe 3 integrally formed with it and used for air exchange between the inside and outside of the transformer. After the guide pipe 3 is integrally formed with the funnel 1, a hole is drilled to form a pipe. Both ends of the guide pipe 3 are bent outward. Here, during the air exchange process, the insulating oil is discharged downward into the transformer through the flow channel 2 in the funnel 1, and the air inside the transformer can be discharged outward along the guide pipe 3. The outward bending can avoid the formation of air resistance when the insulating oil is injected, thus reducing the oil replenishment efficiency. The oil inlet end of the funnel 1 is rotatably connected to a cover plate 4 for isolating dust. A sealing strip 5 is fixedly installed on the cover plate 4. When the cover plate 4 contacts the end of the funnel 1, the sealing strip 5 abuts against the inner wall of the oil inlet end of the funnel 1. Here, when adding oil, the cover plate 4 can be flipped to seal the oil inlet end of the funnel 1, effectively reducing the contact between dust and insulating oil during the oil replenishment process. In a clean working environment, the cover plate 4 can be opened freely, and the cover plate 4 can reduce the entry of dust when the funnel 1 is stored.

[0021] A limiting seal is installed on the funnel 1. The limiting seal includes a connecting seat 7, which is threaded onto the funnel 1. The connecting seat 7 has an annular groove 8 that changes in gradient from top to bottom along the axis of the funnel 1. A sealing strip 9 is fixedly installed on the annular groove 8. Since there are different oil inlet diameters, the multi-step connecting seat 7 can adapt to and seal various oil inlet diameters, thus improving the compatibility between the funnel 1 and the oil inlet.

[0022] The inlet end of the funnel 1 is also provided with an arc-shaped notch 6 for placing the oil pipeline. The pipeline is placed in the arc-shaped notch 6 and the cover plate 4 is closed. The buckle on the cover plate 4 can limit the pipeline and seal the inlet end of the funnel 1, reducing the entry of dust and avoiding contamination of the transformer oil.

[0023] Both sealing strip 9 and sealing strip 5 are made of nitrile rubber, which has good oil resistance and wear resistance.

[0024] In this utility model, the operator inserts the connecting seat 7 and the funnel 1 into the oil filling port on the transformer. After the funnel 1 is placed, the oil filling pipe is placed in the arc-shaped notch 6. The cover plate 4 is flipped over and abuts against the end of the funnel 1. The pipe is limited by the fastening parts on the cover plate 4, and the sealing strip 5 abuts against the inner wall of the funnel 1. At this time, the oil filling process begins. The guide pipe 3 leads the air out of the transformer to avoid air resistance when the insulating oil is injected, which would reduce the oil filling efficiency.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A transformer oil flow guiding assembly comprising an integrally formed funnel (1), characterized in that, The funnel (1) is provided with a flow channel (2) for the flow of insulating oil. The inner wall of the funnel (1) is provided with a guide pipe (3) integrally formed with it and used for air exchange between the inside and outside of the transformer. The oil inlet end of the funnel (1) is rotatably connected with a cover plate (4) for isolating dust. A limit seal is installed on the funnel (1). The oil inlet end of the funnel (1) is also provided with an arc-shaped notch (6) for placing the oil pipeline.

2. The transformer oil flow guiding assembly according to claim 1, characterized in that, The limiting seal includes a connecting seat (7), which is threaded onto the funnel (1). The connecting seat (7) has an annular groove (8) that changes in gradient from top to bottom along the axis of the funnel (1). A sealing strip (9) is fixedly installed on the annular groove (8).

3. The transformer oil flow guiding assembly according to claim 1, characterized in that, The guide tube (3) and the inner wall of the funnel (1) are located on the same plane.

4. The transformer oil flow guiding assembly according to claim 1, characterized in that, Both ends of the guide tube (3) are bent outward.

5. A transformer oil flow guiding assembly according to claim 2, characterized in that, A sealing strip (5) is fixedly installed on the cover plate (4). When the cover plate (4) contacts the end of the funnel (1), the sealing strip (5) abuts against the inner wall of the oil inlet end of the funnel (1).

6. A transformer oil flow guiding assembly according to claim 5, characterized in that, Both the sealing strip one (9) and the sealing strip two (5) are made of nitrile rubber.

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