Oil-immersed transformer strong oil circulation finned radiator

Abstract

The application provides an oil-immersed transformer strong oil circulation finned radiator, and relates to the technical field of finned radiators. The oil-immersed transformer strong oil circulation finned radiator comprises two support walls, a plurality of communication pipes are communicated at equidistant positions on the adjacent sides of the two support walls, the left and right ends of the communication pipes are all communicated with bend pipes, and the ends of the bend pipes all penetrate through the corresponding support walls and are communicated with the corresponding conical pipes. The threaded rod is driven to rotate by the synchronous motor, so that the piston moves upward in the pull pipe to pull and squeeze out the hot oil, the heat dissipation efficiency is improved, the service life of the winding insulation material is increased, the service life of the transformer is improved, the use demand is better met, the communication pipe is bent multiple times, the conical pipe is connected in cooperation, the heat dissipation area is expanded, the oil channel gap is reduced, the contact area of the hot oil in the radiator is increased, the heat dissipation effect is better, the oil temperature returned to the transformer is reduced to a satisfactory degree.

Description

Technical Field

[0001] This invention relates to the field of plate radiator technology, specifically to an oil-immersed transformer forced oil circulation plate radiator. Background Technology

[0002] Oil-immersed transformers are a new type of high-performance transformer with a more rational structure and superior performance. Their three-dimensional wound core, with its three core columns arranged in an equilateral triangle, has no air gaps in its magnetic circuit, resulting in tighter winding. The three magnetic circuits are of equal and shortest lengths, and the cross-sectional area of ​​the core columns is closer to a circle. Therefore, performance is further improved, losses are reduced, noise is reduced, three-phase balance is achieved, and the third harmonic component is reduced. This product is more suitable for power grid upgrades in urban and rural areas and industrial and mining enterprises, and is also more suitable for combined transformers and prefabricated substation transformers.

[0003] Plate radiators are a type of heat exchange device used in oil-immersed transformers and reactors, and they are shaped like metal plates.

[0004] Currently, transformer oil mainly relies on thermal convection to conduct heat within the transformer. This means that hydraulic oil enters from the upper inlet and flows out from the lower outlet. During this process, the transformer oil flows slowly, resulting in poor heat dissipation. This leads to a reduction in the lifespan of the winding insulation materials and further reduces the overall lifespan of the transformer, making it difficult to meet current heat dissipation requirements. Furthermore, existing plate-type radiators are inadequate in their heat dissipation effect. After the high-temperature oil is introduced into the lower oil pipe of the radiator from the upper oil pipe of the transformer, the oil has limited contact surface area within the radiator, and the heat dissipation effect cannot be fully realized. Consequently, the temperature of the oil returning to the transformer is insufficient to reduce to a satisfactory level. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an oil-immersed transformer forced oil circulation plate radiator, which solves the problems of slow transformer oil flow, poor heat dissipation, reduced lifespan of winding insulation materials, and further reduced transformer lifespan, making it difficult to meet current heat dissipation requirements. In addition, the oil has limited contact surface in the radiator, so the heat dissipation effect cannot be fully realized, and the oil temperature returned to the transformer is not reduced to a satisfactory level.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an oil-immersed transformer forced oil circulation plate radiator, comprising two supporting walls, with multiple connecting pipes equidistantly connected to adjacent sides of the two supporting walls. Each connecting pipe has a bent pipe at its left and right ends, the ends of which penetrate the corresponding supporting wall and connect to a corresponding tapered pipe. A hollow pipe is connected to the middle of the upper connecting pipe, and a pull-out pipe is connected to the top of the hollow pipe. A piston is disposed inside the pull-out pipe, and a fixing rod is fixedly connected to the top of the piston. The top of the fixed rod passes through the pull-out tube and is fixedly connected to the lifting plate. The top of each of the support walls is fixedly connected to a synchronous motor. The output end of each synchronous motor is fixedly connected to a threaded rod. The upper middle part of the threaded rod is threaded to the left and right ends of the middle of the lifting plate, respectively. The right side of the upper connecting pipe passes through the corresponding support wall and is connected to an oil inlet pipe. A one-way valve is installed on the oil inlet pipe. A one-way valve is installed at the left end of the middle of the rear side of the upper connecting pipe. The right end of the bottom connecting pipe passes through the corresponding support wall and is connected to an oil outlet pipe.

[0007] Preferably, the front and rear ends of the opposite side of the support wall are fixedly connected to a fixing plate, and the front and rear sides of the fixing plate are provided with multiple through holes at equal intervals. The bottom of the support wall is fixedly connected to the left and right ends of the inner side of the groove, and the bottom of the fixing plate is fixedly connected to the four corners of the inner side of the groove.

[0008] Preferably, a connecting rod is fixedly connected to the top of each adjacent side of the support wall, and an arc-shaped plate is fixedly connected to each adjacent end of the connecting rod. The adjacent sides of the arc-shaped plate are respectively fixedly connected to the lower middle part of the left and right sides of the outer wall of the pull-out tube. Reinforcing ribs are fixedly connected to the upper and lower sides of the connecting rod, and the side of the reinforcing ribs closest to the support wall is fixedly connected to the corresponding support wall.

[0009] Preferably, multiple protective plates are provided on the front and rear ends of adjacent sides of the support wall, multiple holes are provided at equal intervals on the front and rear sides of the support wall, and fixing bolts are threaded to the four corners of the protective plates. The ends of the fixing bolts are threaded to the corresponding holes, and handrails are fixedly connected to the middle of the outer wall of the protective plates.

[0010] Preferably, a threaded ring is threaded to the upper part of the outer wall of the pull tube, and a rubber ring is fixedly connected to the top of the threaded ring.

[0011] Preferably, a limit cap is fixedly connected to the top of each threaded rod, and a rubber pad is fixedly connected to the bottom of each limit cap.

[0012] Preferably, the right end of the outer wall of both the oil inlet pipe and the oil outlet pipe is fixedly connected to a mounting ring, and the mounting ring has multiple mounting holes around its center.

[0013] Preferably, the connecting pipe has a bent structure and is integrally formed.

[0014] Working principle: Oil enters through the inlet pipe, and the synchronous motor drives the threaded rod to rotate, causing the lifting plate to pull the fixed rod upward. This causes the piston to move upward in the extraction tube, drawing and squeezing out the hot oil in the connecting pipe between the adjacent one-way valve one and one-way valve two. This accelerates the flow rate of the hot oil, improves heat dissipation efficiency, increases the lifespan of the winding insulation material, and extends the service life of the transformer, better meeting usage requirements. Furthermore, through multiple bends in the connecting pipe, with bends connected at both ends and connected by tapered pipes, the hot oil drips like sand through the tapered pipes, expanding the heat dissipation area and reducing the oil passage gap. This increases the contact surface of the hot oil in the radiator, resulting in better heat dissipation and ensuring that the temperature of the oil returning to the transformer is reduced to a satisfactory level.

[0015] This invention provides a forced oil circulation plate radiator for oil-immersed transformers. It has the following beneficial effects:

[0016] 1. This invention introduces oil through an oil inlet pipe, and a synchronous motor drives a threaded rod to rotate, causing a lifting plate to pull a fixed rod upward. This causes a piston to move upward within the extraction pipe, drawing out and squeezing out hot oil from the connecting pipe between one-way valve one and one-way valve two. This accelerates the flow rate of hot oil, improves heat dissipation efficiency, increases the lifespan of winding insulation materials, and extends the service life of the transformer, thus better meeting usage requirements.

[0017] 2. This invention uses multiple bends in the connecting pipe, with oil bends connected to both ends of the connecting pipe. The bends are connected to each other by tapered pipes. When hot oil passes through the tapered pipes, it drips like sand from an hourglass, which increases the heat dissipation area and reduces the gap between the oil channels. This increases the contact area of ​​the hot oil in the radiator, resulting in better heat dissipation and reducing the temperature of the oil returning to the transformer to a satisfactory level. Attached Figure Description

[0018] Figure 1 This is a front view of the present invention;

[0019] Figure 2 This is a side view of the present invention;

[0020] Figure 3 This is a perspective view of the present invention;

[0021] Figure 4 This is a partial structural breakdown diagram of the present invention;

[0022] Figure 5 This is a top view of the present invention;

[0023] Figure 6 This is a partial structural diagram of the present invention.

[0024] The components are as follows: 1. Support wall; 2. Connecting pipe; 3. Bend; 4. Tapered pipe; 5. Oil inlet pipe; 6. Oil outlet pipe; 7. One-way valve; 8. Hollow pipe; 9. Pull-out pipe; 10. Piston; 11. Fixed rod; 12. Lifting plate; 13. Synchronous motor; 14. Threaded rod; 15. One-way valve; 16. Connecting rod; 17. Arc plate; 18. Reinforcing rib; 19. Mounting ring; 20. Mounting hole; 21. Fixed plate; 22. Through hole; 23. Groove; 24. Threaded ring; 25. Rubber ring; 26. Limit cap; 27. Rubber pad; 28. Protective plate; 29. ​​Fixing bolt; 30. Handrail; 31. Hole. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example:

[0027] like Figure 1-6 As shown, this embodiment of the invention provides an oil-immersed transformer forced oil circulation plate radiator, including two supporting walls 1. Multiple connecting pipes 2 are equidistantly connected to adjacent sides of the two supporting walls 1. Both ends of the connecting pipes 2 are connected to bent pipes 3. The ends of the bent pipes 3 penetrate the corresponding supporting wall 1 and connect to the corresponding tapered pipe 4. A hollow pipe 8 is connected to the middle of the upper connecting pipe 2. A pull-out pipe 9 is connected to the top of the hollow pipe 8. A piston 10 is provided inside the pull-out pipe 9. A fixing rod 11 is fixedly connected to the top of the piston 10. The top of the fixing rod 11 penetrates... A lifting plate 12 is fixedly connected to the pull-out pipe 9. A synchronous motor 13 is fixedly connected to the top of the support wall 1. A threaded rod 14 is fixedly connected to the output end of the synchronous motor 13. The upper middle part of the threaded rod 14 is threaded to the left and right ends of the middle part of the lifting plate 12, respectively. The right side of the upper connecting pipe 2 passes through the corresponding support wall 1 and is connected to the oil inlet pipe 5. A one-way valve 7 is installed on the oil inlet pipe 5. A one-way valve 15 is installed at the left end of the middle part of the rear side of the upper connecting pipe 2. The right end of the bottom connecting pipe 2 passes through the corresponding support wall 1 and is connected to the oil outlet pipe 6.

[0028] Oil enters through the oil inlet pipe 5, and the synchronous motor 13 drives the threaded rod 14 to rotate, causing the lifting plate 12 to pull the fixed rod 11 upward. This causes the piston 10 to move upward in the pulling pipe 9, drawing and squeezing out the hot oil in the connecting pipe 2 between the one-way valve 7 and the two-way valve 15. This accelerates the flow rate of the hot oil, improves heat dissipation efficiency, increases the lifespan of the winding insulation material, and improves the service life of the transformer, thus better meeting the usage requirements. Furthermore, through the multiple bends of the connecting pipe 2, with bends 3 connected to both ends of the connecting pipe 2, and the bends 3 connected to each other by tapered pipes 4, the hot oil drips like sand through the tapered pipes 4, expanding the heat dissipation area and reducing the oil passage gap. This increases the contact surface of the hot oil in the radiator, resulting in better heat dissipation and ensuring that the temperature of the oil returning to the transformer is reduced to a satisfactory level.

[0029] The front and rear ends of the support wall 1 are fixedly connected to the opposite side. The front and rear sides of the fixed plate 21 are provided with multiple through holes 22 at equal intervals. The bottom of the support wall 1 is fixedly connected to the left and right ends of the inner side of the groove 23, and the bottom of the fixed plate 21 is fixedly connected to the four corners of the inner side of the groove 23.

[0030] The mounting plate 21 is used to facilitate installation through the through hole 22, and the groove 23 is used to prevent hot oil from overflowing.

[0031] A connecting rod 16 is fixedly connected to the top of each adjacent side of the support wall 1. An arc plate 17 is fixedly connected to each adjacent end of the connecting rod 16. The adjacent sides of the arc plate 17 are fixedly connected to the lower middle part of the left and right sides of the outer wall of the pull tube 9. A reinforcing rib 18 is fixedly connected to the upper and lower sides of the connecting rod 16. The side of the reinforcing rib 18 closest to the support wall 1 is fixedly connected to the corresponding support wall 1.

[0032] The connecting rod 16 is used in conjunction with the arc plate 17 to fix the pull tube 9, and the connecting rod 16 is reinforced and fixed by the reinforcing rib 18.

[0033] Multiple protective plates 28 are provided on the front and rear ends of adjacent sides of the support wall 1. Multiple holes 31 are provided at equal intervals on the front and rear sides of the support wall 1. Fixed bolts 29 are threadedly connected to the four corners of the protective plates 28. The ends of the fixed bolts 29 are threadedly connected to the corresponding holes 31. Handrails 30 are fixedly connected to the middle of the outer wall of the protective plates 28.

[0034] The protective plate 28 is fixed by using fixing bolts 29, thereby protecting the connecting pipe 2. The handrail 30 is used to pick up the corresponding protective plate 28.

[0035] A threaded ring 24 is threadedly connected to the upper part of the outer wall of the pull tube 9, and a rubber ring 25 is fixedly connected to the top of the threaded ring 24.

[0036] The use of threaded ring 24 to install rubber ring 25 on the top of the outer wall of pull tube 9 can limit and block the compression of lifting plate 12 and prevent excessive compression.

[0037] Each threaded rod 14 has a limit cap 26 fixedly connected to its top, and each limit cap 26 has a rubber pad 27 fixedly connected to its bottom.

[0038] The lifting plate 12 is limited by the limit cap 26 to prevent it from falling off, and the rubber pad 27 protects the limit cap 26.

[0039] The right end of the outer wall of both the oil inlet pipe 5 and the oil outlet pipe 6 is fixedly connected with a mounting ring 19, and multiple mounting holes 20 are provided around the center of the mounting ring 19.

[0040] Install and use the device by using the mounting ring 19 in conjunction with the mounting hole 20.

[0041] The connecting pipe 2 has a bent structure and is integrally formed.

[0042] This allows for a larger contact area with hot oil while preventing oil leakage.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil-immersed transformer forced-oil circulation finned radiator comprising two support walls (1), characterized in that: Two said support wall (1) adjacent side equidistant communication has a plurality of communication pipe (2), the left and right ends of the communication pipe (2) are communicated with elbow pipe (3), the end of the elbow pipe (3) penetrates the corresponding support wall (1) and is communicated with the corresponding conical pipe (4), the middle of the upper communication pipe (2) is communicated with the hollow pipe (8), the top of the hollow pipe (8) is communicated with the pull pipe (9), the inner side of the pull pipe (9) is provided with a piston (10), the top of the piston (10) is fixedly connected with a fixed rod (11), the top of the fixed rod (11) penetrates the pull pipe (9) and is fixedly connected with a lifting plate (12), the top of the support wall (1) is fixedly connected with a synchronous motor (13), the output end of the synchronous motor (13) is fixedly connected with a threaded rod (14), the middle and upper part of the threaded rod (14) are respectively screwed in the middle and left and right ends of the lifting plate (12), the right side of the upper communication pipe (2) penetrates the corresponding support wall (1) and is communicated with the oil inlet pipe (5), the oil inlet pipe (5) is provided with a one-way valve (7), the left end of the middle of the rear side of the upper communication pipe (2) is provided with a one-way valve (15), the right end of the bottom communication pipe (2) penetrates the corresponding support wall (1) and is communicated with the oil outlet pipe (6); through the oil inlet pipe (5), the synchronous motor (13) drives the threaded rod (14) to rotate, the lifting plate (12) drives the fixed rod (11) to pull upward, so that the piston (10) moves upward in the pull pipe (9) to pull and extrude the hot oil in the communication pipe (2) between the one-way valve (7) and the one-way valve (15), so as to accelerate the flow rate of the hot oil, and through the multiple bending of the communication pipe (2), the two ends of the communication pipe (2) are communicated with the elbow pipe (3), the elbow pipe (3) is connected by the conical pipe (4), when the hot oil passes through the conical pipe (4), it drops like a sandglass, expands the heat dissipation area, and reduces the oil channel gap, so as to increase the contact area of the hot oil in the radiator.

2. The oil-immersed transformer forced-oil circulation finned radiator according to claim 1, characterized in that: The opposite side of the support wall (1) is fixedly connected with a fixed plate (21) at the front and rear ends, a plurality of through holes (22) are equidistantly arranged on the front and rear sides of the fixed plate (21), the bottom of the support wall (1) is fixedly connected with the inner left and right ends of the recess (23) respectively, and the bottom of the fixed plate (21) is fixedly connected with the inner four corners of the recess (23) respectively.

3. The oil-immersed transformer forced-oil circulation finned radiator according to claim 1, characterized in that: The top of the support wall (1) is fixedly connected with a connecting rod (16) on the adjacent side, the adjacent end of the connecting rod (16) is fixedly connected with an arc plate (17), the adjacent side of the arc plate (17) is fixedly connected with the outer wall of the pull pipe (9) on the left and right sides of the middle and lower part respectively, the upper and lower sides of the connecting rod (16) are fixedly connected with a reinforcing rib (18), and the side close to the support wall (1) of the reinforcing rib (18) is fixedly connected with the corresponding support wall (1) respectively.

4. The oil-immersed transformer forced-oil circulation finned radiator according to claim 1, characterized in that: The support wall (1) is provided with a plurality of protection plates (28) on the adjacent sides of the front and rear ends, a plurality of hole (31) are equidistantly arranged on the front and rear sides of the support wall (1), the four corners of the protection plate (28) are threadedly connected with the fixing bolts (29), the ends of the fixing bolts (29) are respectively threadedly connected with the corresponding hole (31), and the outer walls of the protection plate (28) are fixedly connected with the handrails (30) in the middle.

5. The oil-immersed transformer forced-oil circulation finned radiator according to claim 1, characterized in that: The outer wall of the pull pipe (9) is threadedly connected with a threaded ring (24) in the upper middle part, and the top of the threaded ring (24) is fixedly connected with a rubber ring (25).

6. The oil-immersed transformer forced-oil circulation finned radiator according to claim 1, characterized in that: The top of the threaded rod (14) is fixedly connected with a limiting cap (26), and the bottom of the limiting cap (26) is fixedly connected with a rubber pad (27).

7. The oil-immersed transformer forced-oil circulation finned radiator according to claim 1, characterized in that: The outer wall of the oil inlet pipe (5) and the oil outlet pipe (6) is fixedly connected with a mounting ring (19) at the right end, and a plurality of mounting holes (20) are arranged around the middle part of the mounting ring (19).

8. The oil-immersed transformer forced-oil circulation finned radiator according to claim 1, characterized in that: The communication pipe (2) is of a bending structure and is integrally formed.

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