A cooling mechanism for large transformers

Abstract

This utility model discloses a cooling mechanism for a large transformer, including a transformer. A water pump is fixedly connected to the lower rear side of the transformer. A filter assembly is fixedly connected to the output end of the water pump. The filter assembly includes an input pipe, which is fixedly connected to the output port of the water pump. The output end of the input pipe is threaded, and a grooved nut is threaded onto the output end of the input pipe. The grooved nut has a groove inside. An annular valve is installed inside the input pipe. The annular valve includes a valve housing, which is fixedly connected to the inside of the input pipe. Several sliding grooves are formed on the upper surface of the valve housing, which are evenly distributed circumferentially on the upper surface of the valve housing. A protrusion groove is formed on the side of the valve housing. A valve seat is connected to the valve housing by a bearing inside the valve housing. This utility model is characterized by its strong practicality and ease of replacement.

Description

Technical Field

[0001] This utility model relates to the field of transformer cooling technology, specifically a cooling mechanism for large transformers. Background Technology

[0002] Transformer oil is typically used as a cooling medium during operation. The primary function of transformer oil is to remove heat from the transformer's interior through circulation, thus maintaining the equipment's normal operating temperature. However, over prolonged use, impurities and deposits gradually accumulate in the transformer oil. These deposits may originate from oil aging, metal wear particles from within the equipment, decomposition products of insulation materials, and other external contaminants. The accumulation of deposits can have several adverse effects on transformer performance. Deposits can clog oil passages, hindering normal oil circulation and reducing heat dissipation efficiency. Poor heat dissipation can cause the transformer's internal temperature to rise, accelerating the aging of insulation materials, thereby affecting the transformer's electrical performance and service life.

[0003] Therefore, it is essential to design a cooling mechanism that is easy to replace and can filter impurities in transformer oil. Utility Model Content

[0004] The purpose of this invention is to provide a cooling mechanism for large transformers to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a cooling mechanism for a large transformer, including a transformer, a water pump fixedly connected to the lower rear side of the transformer, a filter group fixedly connected to the output end of the water pump, the filter group including an input pipe, the input pipe fixedly connected to the output port of the water pump, the output end of the input pipe having a thread, the output end of the input pipe being threaded with a grooved nut, the grooved nut having a nut groove inside, and an annular valve being provided inside the input pipe.

[0006] According to the above technical solution, the annular valve includes a valve housing, which is fixedly connected inside the input pipe. Several sliding grooves are formed on the upper surface of the valve housing, evenly distributed along the circumference. A protrusion groove is formed on the side of the valve housing. A valve seat is connected to the valve housing via a bearing inside. A sliding groove is formed on the upper surface of the valve seat. A protrusion is fixedly connected to the outer side of the valve seat, passing through the protrusion groove and slidingly connected to it. The protrusion is slidably connected to the nut groove. A valve plate is slidably connected between the valve seat and the valve housing. A protruding post is fixedly connected to the upper surface of the valve plate, slidingly connected to the first sliding groove. A protrusion is fixedly connected to the lower surface of the valve plate, slidingly connected to the second sliding groove.

[0007] According to the above technical solution, a filter is provided at the output end of the input pipe, and the filter is threaded at both ends. The right side of the filter is threadedly connected to the grooved nut. One-way valves are fixedly connected to both sides of the filter, and the input ends of the one-way valves are both facing the direction of the input pipe.

[0008] According to the above technical solution, a pair of electrostatic meshes are fixedly connected inside the input pipe, and other adsorption materials can be filled between the electrostatic meshes, such as activated carbon.

[0009] An output pipe is provided on the left side of the filter. The input end of the output pipe is threaded and is threaded to the grooved nut on the left side of the filter. The annular valve is also provided on the left side of the filter, and its connection method and function are the same as those of the annular valve in the input pipe.

[0010] According to the above technical solution, a radiator is fixedly connected to the output end of the first output pipe, and an output pipe is fixedly connected to the output end of the radiator. The output end of the second output pipe is fixedly connected to the oil tank.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model, by providing a nut groove, a second protrusion, and an annular valve, can automatically close the oil passage of the transformer radiator filter when manually rotating to replace the filter, so that the transformer oil will not leak, thus achieving the purpose of facilitating filter replacement. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall rear structure of this utility model; Figure 2 This is a front view of the overall rear side of this utility model; Figure 3 This is an enlarged schematic diagram of the filter surface of this utility model; Figure 4 This is a cross-sectional view of the filter of this utility model; Figure 5 This is an enlarged cross-sectional view of the filter of this utility model; Figure 6 This is a schematic diagram of the annular valve of this utility model; Figure 7 This is an exploded view of the annular valve of this utility model; Figure 8 This is a schematic diagram of the grooved nut of this utility model; Figure 9 This is an axial view of the grooved nut and annular valve of this utility model; In the diagram: 1. Transformer; 2. Water pump; 3. Filter assembly; 31. Input pipe; 32. Ring valve; 321. Valve housing; 322. Slide groove one; 323. Valve plate; 324. Protrusion; 325. Protrusion one; 326. Valve seat; 327. Slide groove two; 328. Protrusion two; 329. Protrusion groove; 33. Groove nut; 331. Nut groove; 34. Filter; 341. Check valve; 342. Static electricity grid; 35. Output pipe one; 4. Radiator; 5. Output pipe two; 6. Oil conservator. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-9 The present invention provides a technical solution: a cooling mechanism for a large transformer, comprising a transformer 1, a water pump 2 fixedly connected to the lower rear side of the transformer 1, a filter assembly 3 fixedly connected to the output end of the water pump 2, the filter assembly 3 including an input pipe 31, the input pipe 31 being fixedly connected to the output port of the water pump 2, the output end of the input pipe 31 being threaded, the output end of the input pipe 31 being threadedly connected to a grooved nut 33, the grooved nut 33 having a nut groove 331 inside, and an annular valve 32 being provided inside the input pipe 31.

[0015] The annular valve 32 includes a valve housing 321, which is fixedly connected inside the input pipe 31. Several grooves 322 are evenly distributed circumferentially on the upper surface of the valve housing 321. A protrusion groove 329 is provided on the side of the valve housing 321. A valve seat 326 is connected to the valve housing 321 via a bearing inside. A groove 327 is provided on the upper surface of the valve seat 326, and a protrusion groove 327 is fixedly connected to the outer side of the valve seat 326. 328, Protrusion 2 328 passes through Protrusion Groove 329, Protrusion 2 328 is slidably connected to Protrusion Groove 329, Protrusion 2 328 is slidably connected to Nut Groove 331, Valve Plate 323 is slidably connected between Valve Seat 326 and Valve Housing 321, Protrusion 324 is fixedly connected to the upper surface of Valve Plate 323, Protrusion 324 is slidably connected to Slide Groove 1 322, Protrusion 1 325 is fixedly connected to the lower surface of Valve Plate 323, Protrusion 1 325 is slidably connected to Slide Groove 2 327.

[0016] A filter 34 is provided at the output end of the input pipe 31. The filter 34 has threads at both ends. The right side of the filter 34 is threaded to a grooved nut 33. One-way valves 341 are fixedly connected to both sides of the filter 34. The input ends of the one-way valves 341 face the input pipe 31. A pair of electrostatic meshes 342 are fixedly connected inside the input pipe 31. Other adsorbent materials, such as activated carbon, can be filled between the electrostatic meshes 342.

[0017] The filter 34 has an output pipe 35 on the left side. The input end of the output pipe 35 is threaded and is threaded to the grooved nut 33 on the left side of the filter 34. The filter 34 also has an annular valve 32 on the left side. The connection method and function are the same as those of the annular valve 32 in the input pipe 31.

[0018] Output pipe 35 is fixedly connected to radiator 4 at its output end. Output pipe 2 is fixedly connected to the output end of radiator 4. Output pipe 2 is fixedly connected to the output end of oil tank 6.

[0019] Working principle: During installation, the filter 34 is manually placed between two grooved nuts 33. The grooved nuts 33 are then manually rotated clockwise, connecting the filter 34 to the input pipe 31 and the output pipe 35. The groove 331 inside the grooved nut 33 pushes the second protrusion 328 on the annular valve 32 to rotate. The slider of the second protrusion 328 is connected within the groove 331 and can only move axially along the groove 331. During rotation, it rotates radially within the groove 329. The second protrusion 328 pushes the valve seat 326 to rotate. 326 drives valve plate 323 to open, thereby starting the valve, activating water pump 2, and energizing electrostatic mesh 342 to adsorb impurities inside the transformer oil using electrostatic adsorption. The power source can be an external power source, or adsorption material can be filled between the electrostatic mesh 342 to improve adsorption capacity. When filter 34 needs to be replaced, water pump 2 is turned off, the electrostatic mesh 342 is de-energized, and the grooved nut 33 is manually rotated in reverse to close the annular valve 32 to prevent transformer oil leakage. Filter 34 is then disconnected from the input pipe 31 and the output pipe 35, allowing filter 34 to be replaced. This design allows for automatic pipe closure during filter 34 replacement to prevent transformer oil leakage.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cooling mechanism for a large transformer, comprising a transformer (1), characterized in that: A water pump (2) is fixedly connected to the lower rear side of the transformer (1). A filter group (3) is fixedly connected to the output end of the water pump (2). The filter group (3) includes an input pipe (31). The input pipe (31) is fixedly connected to the output port of the water pump (2). The output end of the input pipe (31) is threaded. A grooved nut (33) is threaded to the output end of the input pipe (31). A nut groove (331) is provided inside the grooved nut (33). An annular valve (32) is provided inside the input pipe (31).

2. A cooling mechanism for a large transformer according to claim 1, characterized in that: The annular valve (32) includes a valve housing (321), which is fixedly connected inside the input pipe (31). Several grooves (322) are formed on the upper surface of the valve housing (321), evenly distributed around the circumference. A protrusion groove (329) is formed on the side of the valve housing (321). A valve seat (326) is connected to the valve housing (321) via a bearing. A groove (327) is formed on the upper surface of the valve seat (326). A protrusion (328) is fixedly connected to the outer side of the valve seat (326). The second protrusion (328) passes through the protrusion groove (329), the second protrusion (328) is slidably connected to the protrusion groove (329), the second protrusion (328) is slidably connected to the nut groove (331), a valve plate (323) is slidably connected between the valve seat (326) and the valve housing (321), a protruding post (324) is fixedly connected to the upper surface of the valve plate (323), the protruding post (324) is slidably connected to the first sliding groove (322), the first protrusion (325) is fixedly connected to the lower surface of the valve plate (323), the first protrusion (325) is slidably connected to the second sliding groove (327).

3. A cooling mechanism for a large transformer according to claim 2, characterized in that: The output end of the input pipe (31) is provided with a filter (34), both ends of the filter (34) are provided with threads, the right side of the filter (34) is threaded to the grooved nut (33), and the left and right sides of the filter (34) are fixedly connected with one-way valves (341), and the input ends of the one-way valves (341) are all facing the input pipe (31).

4. A cooling mechanism for a large transformer according to claim 3, characterized in that: A pair of electrostatic meshes (342) are fixedly connected inside the input pipe (31). Other adsorbent materials, such as activated carbon, can be filled between the electrostatic meshes (342).

5. A cooling mechanism for a large transformer according to claim 4, characterized in that: The filter (34) has an output pipe (35) on its left side. The input end of the output pipe (35) is threaded and is threaded to the grooved nut (33) on the left side of the filter (34). The filter (34) also has an annular valve (32) on its left side. The connection method and function are the same as those of the annular valve (32) in the input pipe (31).

6. A cooling mechanism for a large transformer according to claim 5, characterized in that: The output end of the first output pipe (35) is fixedly connected to a radiator (4), the output end of the radiator (4) is fixedly connected to an second output pipe (5), and the output end of the second output pipe (5) is fixedly connected to an oil tank (6).

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