Cooling device for an insulating oil production line
By designing a self-driven stirring component and a slow-flow heat exchange component to work synergistically, the high cost and low efficiency of traditional insulating oil cooling devices are solved, achieving efficient and low-cost insulating oil cooling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU CHENSHENG INSULATION NEW MATERIALS
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional insulating oil cooling devices require an additional motor to drive stirring, resulting in high cooling costs and room for improvement in cooling efficiency.
Design a cooling device comprising a cooling tank, an inlet pipe, an outlet pipe, an oil inlet pipe, an oil outlet pipe, a slow-flow heat exchange component, and a self-driven stirring component. The device utilizes the impact force of high-temperature insulating oil to achieve self-rotation stirring, thereby increasing the contact area and contact time between the oil and the cooling water.
It achieves efficient cooling, reduces cooling costs, avoids the need for additional stirring driving force, and improves cooling efficiency.
Smart Images
Figure CN224365183U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insulating oil production technology, and specifically to a cooling device for an insulating oil production line. Background Technology
[0002] In the production process of insulating oil, cooling devices cool newly refined or regenerated insulating oil to bring it to the required storage or filling temperature, preventing tank deformation or seal failure due to high temperatures. High temperatures accelerate the oxidation reaction of insulating oil, generating acidic substances or precipitates, reducing its dielectric strength and lubrication properties. Cooling devices stabilize oil temperature, reduce the formation of oxidation byproducts, and extend the oil's service life. Traditional insulating oil cooling methods mainly rely on natural heat dissipation or simple air cooling technology. While these methods can reduce oil temperature to some extent, they are inefficient and cannot meet the demands of large-scale, high-efficiency production.
[0003] To address this, Chinese patent document CN222579016U discloses a cooling device for insulating oil production, including a storage tank. The storage tank contains a heat dissipation mechanism, and a drain pipe is installed through the lower end of the tank. The heat dissipation mechanism includes several stirring plates, each with a guide hole. After the raw material is poured into the storage tank, a motor controls a second liquid guide pipe and a lower connecting plate to drive the stirring plates to stir and dissipate heat from the raw material. Simultaneously, coolant flows along the inlet pipe and the first connecting pipe into the guide holes, allowing the raw material to exchange heat with the coolant through the stirring plates and guide holes, improving the cooling efficiency. After the heat exchange is complete, the coolant returns along the waste pipe to an external recycling tank for further cooling, allowing it to be reused multiple times, thus reducing overall processing costs.
[0004] The aforementioned cooling equipment has several shortcomings. First, it requires an additional motor to provide the stirring force, resulting in higher cooling costs. Second, its cooling effect needs further improvement. Therefore, optimization and improvement of this cooling equipment are necessary. Summary of the Invention
[0005] The purpose of this invention is to overcome the aforementioned problems in traditional technologies and provide a cooling device for insulating oil production lines.
[0006] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:
[0007] A cooling device for an insulating oil production line includes a cooling tank, a water inlet pipe, a water outlet pipe, an oil inlet pipe, an oil outlet pipe, a slow-flow heat exchange assembly, and a self-driven stirring assembly. The water inlet pipe and water outlet pipe are respectively installed on the sides of the cooling tank near the upper and lower ends. The oil inlet pipe is installed on the top plate of the cooling tank, and the oil outlet pipe is installed on the bottom plate. A slow-flow heat exchange assembly is installed at the inner end of the oil outlet pipe. The slow-flow heat exchange assembly includes, from top to bottom, an oil guide pipe, an upper oil guide plate, a spiral capillary tube, and a lower oil guide pipe. The oil pan, the self-driven stirring assembly consists of an inner spiral blade tube, a collar, a grooved stirring frame and stirring blades. The movement of the inner spiral blade tube is restricted between the oil inlet pipe and the oil guide pipe. The collar is sleeved on the outside of the oil outlet pipe. A grooved stirring frame is symmetrically fixed between the inner spiral blade tube and the collar. Several stirring blades are installed on the inner side of the web of the grooved stirring frame. The inner cavities of the oil inlet pipe, the inner spiral blade tube, the oil guide pipe, the upper oil guide pan, the spiral capillary tube, the lower oil guide pan and the oil outlet pipe are connected in sequence.
[0008] Furthermore, in the cooling device for the insulating oil production line described above, the inlet pipe and the outlet pipe are respectively connected to the water supply end and the water return end of the circulating cooling water tank, and the inlet pipe and the outlet pipe are equipped with opening adjustment valves.
[0009] Furthermore, in the cooling device for the insulating oil production line described above, the inner spiral blade fitting is composed of a tube section, a sealing convex ring, and an inner spiral blade body. The upper and lower ends of the tube section are symmetrically equipped with sealing convex rings, and the inner spiral blade body is installed on the inner wall of the tube section.
[0010] Furthermore, in the aforementioned cooling device for an insulating oil production line, the outer diameter of the sealing ring is smaller than the outer diameter of the pipe, and the inner diameter of the sealing ring is larger than the inner diameter of the pipe.
[0011] Furthermore, in the cooling device for the insulating oil production line described above, the lower end of the oil inlet pipe is provided with a first annular sealing groove that mates with the corresponding sealing protrusion, and the upper end of the oil guide pipe is provided with a second annular sealing groove that mates with the corresponding sealing protrusion.
[0012] Furthermore, in the cooling device for the insulating oil production line described above, sliding sealing rings are installed at the inner ends of the first annular sealing groove and the second annular sealing groove.
[0013] Furthermore, in the cooling device for the insulating oil production line described above, a number of connecting columns for improving the stability of the upper and lower oil guide plates are connected between their outer shells, and the connecting columns are disposed inside the spiral capillary tube.
[0014] Furthermore, in the cooling device for the insulating oil production line described above, the upper oil guide plate and the lower oil guide plate each have an oil guide cavity inside, the outer side of the oil guide cavity has an external communication port that communicates with the oil guide pipe or the oil outlet pipe, and the inner side of the oil guide cavity has several internal communication ports that communicate with the corresponding spiral capillary tubes.
[0015] The beneficial effects of this utility model are:
[0016] This utility model device is reasonably designed and mainly consists of a cooling tank, an inlet pipe, an outlet pipe, an oil inlet pipe, an oil outlet pipe, a slow-flow heat exchange component, and a self-driven stirring component. The slow-flow heat exchange component includes, from top to bottom, an oil guide pipe, an upper oil guide plate, a spiral capillary tube, and a lower oil guide plate. The self-driven stirring component consists of an inner spiral blade fitting, a collar, a grooved stirring frame, and stirring blades. All components work together. The inner spiral blade fitting of the self-driven stirring component can rotate by utilizing the impact force when the high-temperature insulating oil is introduced. The grooved stirring frame and stirring blades of the self-driven stirring component rotate accordingly to achieve the stirring function. After being decelerated by the inner spiral blade fitting, the high-temperature insulating oil will not cause a large impact on the spiral capillary tube. The slow-flow heat exchange component can significantly increase the contact area and contact time between the insulating oil and the cooling water, resulting in a better cooling effect.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the cooling box structure in this utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the self-driven stirring assembly in this utility model;
[0022] Figure 4 This is a schematic diagram of the internal spiral blade fitting in this utility model;
[0023] Figure 5 This is a schematic diagram of the oil inlet pipe in this utility model;
[0024] Figure 6 This is a schematic diagram of the slow-flow heat exchanger and the oil outlet pipe in this utility model;
[0025] In the attached diagram, the components represented by each number are as follows:
[0026] 1-Cooling tank, 2-Water inlet pipe, 3-Water outlet pipe, 4-Oil inlet pipe, 401-First annular sealing groove, 5-Oil outlet pipe, 6-Oil guide pipe, 601-Second annular sealing groove, 7-Upper oil guide plate, 8-Helical capillary tube, 9-Lower oil guide plate, 10-Inner spiral blade fitting, 101-Pipe section, 102-Sealing convex ring, 103-Inner spiral blade body, 11-Collar ring, 12-Trough-shaped stirring frame, 13-Stirring blade. Detailed Implementation
[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0028] like Figures 1-6 As shown, this embodiment is a cooling device for an insulating oil production line, including a cooling tank 1, a water inlet pipe 2, a water outlet pipe 3, an oil inlet pipe 4, an oil outlet pipe 5, a slow-flow heat exchange assembly, and a self-driving stirring assembly. The water inlet pipe 2 and the water outlet pipe 3 are respectively installed near the upper and lower ends of the side of the cooling tank 1. The oil inlet pipe 4 is installed on the top plate of the cooling tank 1, and the oil outlet pipe 5 is installed on the bottom plate of the cooling tank 1. A slow-flow heat exchange assembly is installed at the inner end of the oil outlet pipe 5. The slow-flow heat exchange assembly includes, from top to bottom, an oil guide pipe 6, an upper oil guide plate 7, a spiral capillary tube 8, and a lower oil guide plate 9. The self-driven stirring assembly consists of an inner spiral blade tube 10, a collar 11, a trough-shaped stirring frame 12, and stirring blades 13. The inner spiral blade tube 10 is movable and restricted between the oil inlet pipe 4 and the oil guide pipe 6. The collar 11 is sleeved on the outside of the oil outlet pipe 5. The trough-shaped stirring frame 12 is symmetrically fixed between the inner spiral blade tube 10 and the collar 11. Several stirring blades 13 are installed on the inner side of the web of the trough-shaped stirring frame 12. The inner cavities of the oil inlet pipe 4, the inner spiral blade tube 10, the oil guide pipe 6, the upper oil guide plate 7, the spiral capillary tube 8, the lower oil guide plate 9, and the oil outlet pipe 5 are connected in sequence.
[0029] In this embodiment, the inlet pipe 2 and the outlet pipe 3 are connected to the water supply end and the return end of the circulating cooling water tank, respectively, and the inlet pipe and the outlet pipe are equipped with opening adjustment valves.
[0030] In this embodiment, the internal spiral blade fitting 10 is composed of a pipe section 101, a sealing convex ring 102, and an internal spiral blade body 103. The sealing convex ring 102 is symmetrically installed at the upper and lower ends of the pipe section 101, and the internal spiral blade body 103 is installed on the inner wall of the pipe section 101.
[0031] In this embodiment, the outer diameter of the sealing ring 102 is smaller than the outer diameter of the pipe 101, and the inner diameter of the sealing ring 102 is larger than the inner diameter of the pipe 101.
[0032] In this embodiment, the lower end of the oil inlet pipe 4 is provided with a first annular sealing groove 401 that cooperates with the corresponding sealing protrusion 102, and the upper end of the oil guide pipe 6 is provided with a second annular sealing groove 601 that cooperates with the corresponding sealing protrusion 102.
[0033] In this embodiment, a sliding sealing ring is installed at the inner end of the first annular sealing groove 401 and the second annular sealing groove 601.
[0034] In this embodiment, a number of connecting posts are connected between the outer shells of the upper oil guide plate 7 and the lower oil guide plate 9 to improve their stability. The connecting posts are located inside the spiral capillary tube 8.
[0035] In this embodiment, the upper oil guide plate 7 and the lower oil guide plate 9 each have an oil guide cavity inside. The outer side of the oil guide cavity has an external communication port that communicates with the oil guide pipe 6 or the oil outlet pipe 5. The inner side of the oil guide cavity has several internal communication ports that communicate with the corresponding spiral capillary tubes 8.
[0036] In this embodiment, all components of the oil inlet pipe 4, oil outlet pipe 5, slow-flow heat exchange assembly, and self-driven stirring assembly are made of stainless steel.
[0037] A specific application of this embodiment is as follows: This device mainly consists of a cooling tank 1, an inlet pipe 2, an outlet pipe 3, an oil inlet pipe 4, an oil outlet pipe 5, a slow-flow heat exchange assembly, and a self-driven stirring assembly. The slow-flow heat exchange assembly includes, from top to bottom, an oil guide pipe 6, an upper oil guide plate 7, a spiral capillary tube 8, and a lower oil guide plate 9. The self-driven stirring assembly consists of an inner spiral blade fitting 10, a collar 11, a grooved stirring frame 12, and a stirring blade 13. All components work together. The inner spiral blade fitting 10 of the self-driven stirring assembly can rotate by utilizing the impact force when the high-temperature insulating oil is introduced. The grooved stirring frame 12 and the stirring blade 13 of the self-driven stirring assembly rotate accordingly to achieve the stirring function. After being decelerated by the inner spiral blade fitting 10, the high-temperature insulating oil will not cause a large impact on the spiral capillary tube 8. The slow-flow heat exchange assembly can significantly increase the contact area and contact time between the insulating oil and the cooling water, resulting in a better cooling effect.
[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A cooling device for an insulating oil production line, characterized in that, The system includes a cooling tank, a water inlet pipe, a water outlet pipe, an oil inlet pipe, an oil outlet pipe, a slow-flow heat exchange assembly, and a self-driven stirring assembly. The water inlet pipe and water outlet pipe are respectively installed on the sides of the cooling tank near the upper and lower ends. The oil inlet pipe is installed on the top plate of the cooling tank, and the oil outlet pipe is installed on the bottom plate. A slow-flow heat exchange assembly is installed at the inner end of the oil outlet pipe. The slow-flow heat exchange assembly includes, from top to bottom, an oil guide pipe, an upper oil guide plate, a spiral capillary tube, and a lower oil guide plate. The self-driven stirring assembly… The stirring assembly consists of an inner spiral blade tube, a collar, a grooved stirring frame, and stirring blades. The movement of the inner spiral blade tube is restricted between the oil inlet pipe and the oil guide pipe. The collar is sleeved on the outside of the oil outlet pipe. A grooved stirring frame is symmetrically fixed between the inner spiral blade tube and the collar. Several stirring blades are installed on the inner side of the web of the grooved stirring frame. The inner cavities of the oil inlet pipe, the inner spiral blade tube, the oil guide pipe, the upper oil guide plate, the spiral capillary tube, the lower oil guide plate, and the oil outlet pipe are connected in sequence.
2. The cooling device for an insulating oil production line according to claim 1, characterized in that, The inlet pipe and outlet pipe are respectively connected to the water supply end and the water return end of the circulating cooling water tank, and the inlet pipe and outlet pipe are equipped with opening adjustment valves.
3. The cooling device for an insulating oil production line according to claim 2, characterized in that, The internal spiral blade fitting consists of a tube section, a sealing convex ring, and an internal spiral blade body. The upper and lower ends of the tube section are symmetrically equipped with sealing convex rings, and the inner wall of the tube section is equipped with an internal spiral blade body.
4. The cooling device for an insulating oil production line according to claim 3, characterized in that, The outer diameter of the sealing ring is smaller than the outer diameter of the pipe, and the inner diameter of the sealing ring is larger than the inner diameter of the pipe.
5. The cooling device for an insulating oil production line according to claim 4, characterized in that, The lower end of the oil inlet pipe is provided with a first annular sealing groove that mates with the corresponding sealing protrusion, and the upper end of the oil guide pipe is provided with a second annular sealing groove that mates with the corresponding sealing protrusion.
6. The cooling device for an insulating oil production line according to claim 5, characterized in that, A sliding sealing ring is installed at the inner end of the first and second annular sealing grooves.
7. The cooling device for an insulating oil production line according to claim 6, characterized in that, A number of connecting posts are connected between the outer shells of the upper and lower oil guide plates to improve their stability. These connecting posts are located inside the spiral capillary tube.
8. The cooling device for an insulating oil production line according to claim 7, characterized in that, The upper and lower oil guide plates each have an oil guide cavity inside. The outer side of the oil guide cavity has an external communication port that communicates with the oil guide pipe or the oil outlet pipe. The inner side of the oil guide cavity has several internal communication ports that communicate with the corresponding spiral capillary tubes.