Multi-stage split hydraulic generator thrust bearing oil cooler

Abstract

The utility model relates to the technical field of thrust bearings, and discloses a multistage split hydraulic generator thrust bearing oil cooler which comprises three arc-shaped stainless steel pipes and an arc-shaped communicating pipe I. The two ends of each arc-shaped stainless steel pipe are integrally provided with first connectors. The number of the first arc-shaped communicating pipes is multiple, second arc-shaped communicating pipes are arranged on the sides, away from the three arc-shaped stainless steel pipes, of the first connectors, and a plurality of bolts are arranged between the second arc-shaped communicating pipes and the first connectors. The distances among the three circular coolers are adjusted according to actual requirements through a plurality of rotating circular rings which are rotationally arranged, and the whole device performs better heat exchange on lubricating oil in thrust shafts with different lengths, so that the device can be applied to different scenes, and the flexibility and practicability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thrust bearings, in particular to a multi-stage split-flap type hydraulic generator thrust bearing oil cooler. Background Art

[0002] A vertical hydro-turbine generator set is equipped with one or two thrust shafts on the entire generator shaft. Due to the repeated extension of the thrust shaft, the temperature of the lubricating oil will gradually increase as the unit runs, and the viscosity of the lubricating oil will gradually decrease as the temperature rises. Once the viscosity of the lubricating oil decreases, the oil film formed between the thrust shaft and the bearing will become thinner and the oil film rigidity will deteriorate, which can easily lead to bearing burning accidents. Therefore, we have always installed an oil cooler in the thrust shaft to cool the lubricating oil to ensure the normal operation of the unit.

[0003] In the prior art, when multiple fan-shaped cooler bodies are evenly placed around the circumference, it is impossible to meet the use of thrust shafts of different lengths, thereby reducing the flexibility and practicality of the device. At the same time, the coolant in the above device cannot flow out after flowing in one circle, resulting in its heat exchange performance cannot be fully utilized. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a multi-stage split-flap hydraulic generator thrust bearing oil cooler, which can solve the problem in the prior art that when multiple fan-shaped cooler bodies are evenly placed around the circumference, they cannot meet the use of thrust shafts of different lengths, thereby reducing the flexibility and practicality of the device. At the same time, the coolant in the above device cannot flow out after flowing one circle, resulting in the problem that its heat exchange performance cannot be fully utilized.

[0005] To solve the above technical problems, according to one aspect of the present invention, more specifically, a multi-stage split-flap hydraulic generator thrust bearing oil cooler comprises an arc-shaped stainless steel tube and an arc-shaped connecting tube 1, wherein the number of the arc-shaped stainless steel tubes is three, and both ends of the three arc-shaped stainless steel tubes are integrally formed with a connector 1, and the number of the arc-shaped connecting tube 1 is multiple, and the multiple connectors 1 are each provided with an arc-shaped connecting tube 2 on one side away from the three arc-shaped stainless steel tubes, and multiple bolts are provided between the multiple arc-shaped connecting tubes 2 and the multiple connectors 1, and both ends of the multiple arc-shaped connecting tubes 1 are detachably connected with the connector 2, and the two distant connectors 2 are each integrally formed with three cooling water pipes, and the three arc-shaped connecting tubes 1, the multiple cooling water pipes, and the multiple arc-shaped connecting tubes 2 sequentially form three fixed circular wholes;

[0006] The interiors of the three arc-shaped stainless steel tubes are fixedly connected with partitions, the front surfaces of the two arc-shaped stainless steel tubes at the rear are fixedly connected with conveying hoses, the front ends of the two conveying hoses are respectively fixedly connected to the bottom of the rear surfaces of the two arc-shaped stainless steel tubes at the front, the outer side wall of the frontmost arc-shaped stainless steel tube is integrally formed with a water inlet, and the outer side wall of the rearmost arc-shaped stainless steel tube is integrally formed with a drain outlet.

[0007] Furthermore, sealing gaskets are provided at the joints between the plurality of arc-shaped connecting pipes 2 and the plurality of connecting heads 1.

[0008] Furthermore, the front surfaces of the two arc-shaped connecting tubes 1 at the rear and the front surfaces of the two arc-shaped connecting tubes 2 at the rear are fixedly connected to support sleeves, the interiors of the multiple support sleeves are slidably connected to sliding circular plates, the centers of the front surfaces of the multiple sliding circular plates are fixedly connected to adjusting rods, and the front ends of the multiple adjusting rods are respectively fixedly connected to the rear surfaces of the two arc-shaped connecting tubes 1 at the front and the rear surfaces of the two arc-shaped connecting tubes 2 at the front.

[0009] Furthermore, the outer walls of the multiple support sleeves are rotatably connected to the rotating rings, the inner left sides of the multiple rotating rings are fixedly connected to the locking columns, the outer walls of the multiple support sleeves and the inner parts of the multiple rotating rings are provided with annular slide grooves, the lower surfaces of the multiple adjusting rods are provided with limiting vertical grooves, the outer walls of the multiple adjusting rods and the left sides of the multiple limiting vertical grooves are provided with multiple annular clamping grooves, the multiple annular clamping grooves are respectively connected to the multiple limiting vertical grooves, and the right ends of the multiple locking columns respectively extend to the inside of the annular grooves located on the right side of the multiple annular slide grooves.

[0010] Furthermore, a connecting plate 1 is fixedly connected to the right side of the outer wall of the multiple supporting sleeves and located inside the multiple rotating rings, and a connecting plate 2 is fixedly connected to the inner wall of the multiple rotating rings and located above the multiple engaging columns, and a reset spring 1 is fixedly connected between the multiple connecting plates 1 and the multiple connecting plates 2 respectively.

[0011] Furthermore, a moving groove is integrally formed on the right side of the rear surface of each of the rotating rings, and a limit rod is fixedly connected to the left and right sides of the interior of each of the moving grooves. The outer walls of each of the limit rods are slidably connected to an L-shaped plug-in rod, and a positioning groove is integrally formed on the right side of the outer walls of each of the supporting sleeves and located behind the multiple rotating rings. The left ends of each of the L-shaped plug-in rods extend to the interior of each of the positioning grooves, and the outer walls of each of the limit rods are respectively provided with a return spring 2, and the two ends of each of the return springs are respectively fixedly connected to the right side of each of the L-shaped plug-in rods and the right side of the interior of the multiple moving grooves.

[0012] The beneficial effects of the multi-stage split-flap hydraulic generator thrust bearing oil cooler of the utility model are:

[0013] By rotating multiple rotating rings, the distance between the three circular coolers can be adjusted according to actual needs. The entire device can better exchange heat with the lubricating oil inside thrust shafts of different lengths, so that the device can be used in different scenarios, improving the flexibility and practicality of the device.

[0014] The three fixed circular bodies composed of three arc-shaped stainless steel tubes and multiple arc-shaped connecting tubes 1 and 2 increase the heat exchange area of ​​the cooler. The three-layer structure enables the cooling medium to fully exchange heat with the thrust bearing oil, thereby improving the cooling efficiency.

[0015] The multiple baffles and multiple delivery hoses can guide the cooling medium to flow through the three circular coolers in a circle and finally flow out from the drain port, thereby realizing the recycling of the cooling medium and improving the environmental friendliness of the device. At the same time, the multiple cooling water pipes can extend the residence time of the cooling medium in the cooler, further enhancing the heat exchange effect.

[0016] The connectors 1 and 2 at both ends of the arc-shaped stainless steel pipe are formed integrally with the cooling water pipe, which reduces the number of connection points, reduces the risk of leakage, and makes the installation of the cooler more convenient and quick. At the same time, the arc-shaped connecting pipe 1 and the connector 2 are detachable, which facilitates the maintenance and inspection of the cooler. When a component fails, it can be disassembled separately for repair or replacement without having to replace the entire cooler, thereby improving the maintainability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic diagram of the overall structure of a multi-stage split-flap hydraulic generator thrust bearing oil cooler according to the present utility model;

[0019] Figure 2 This is a schematic diagram of the front cross-section structure of a curved stainless steel tube of a multi-stage split-flap hydraulic generator thrust bearing oil cooler according to the present invention;

[0020] Figure 3 This is a top view structural diagram of a cross section of a support sleeve of a multi-stage split-flap hydraulic generator thrust bearing oil cooler according to the present invention;

[0021] Figure 4This is a bottom-up structural diagram of a rotating circular cross section of a multi-stage split-petal hydro-generator thrust bearing oil cooler according to the present invention;

[0022] Figure 5 This utility model is a multi-stage split-flap type hydraulic generator thrust bearing oil cooler Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 6 This utility model is a multi-stage split-flap type hydraulic generator thrust bearing oil cooler Figure 2 Schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 7 This utility model is a multi-stage split-flap type hydraulic generator thrust bearing oil cooler Figure 3 Schematic diagram of the enlarged structure at point C in the middle.

[0025] In the figure: 1. Arc-shaped stainless steel pipe; 2. Arc-shaped connecting pipe 1; 3. Connector 1; 4. Arc-shaped connecting pipe 2; 5. Bolt; 6. Connector 2; 7. Cooling water pipe; 8. Partition; 9. Delivery hose; 10. Water inlet; 11. Sealing gasket; 12. Support sleeve; 13. Sliding circular plate; 14. Adjusting rod; 15. Rotating ring; 16. Engaging column; 17. Annular slide groove; 18. Limiting vertical groove; 19. Annular locking groove; 20. Connecting plate 1; 21. Connecting plate 2; 22. Reset spring 1; 23. Moving groove; 24. Limiting rod; 25. L-shaped plug rod; 26. Positioning groove; 27. Reset spring 2; 28. Drain outlet. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0027] According to one aspect of the present invention:

[0028] like Figure 2 and Figure 6 As shown, a sealing gasket 11 is provided at the joints of the plurality of arc-shaped connecting pipes 2 4 and the plurality of connectors 1 3;

[0029] The multiple sealing gaskets 11 provided can effectively fill the tiny gaps between the multiple arc-shaped connecting tubes 2 4 and the multiple connectors 1 3, preventing the cooling medium from leaking from the joints, thereby ensuring the normal operation of the cooler, thereby not only improving the cooling efficiency, but also preventing damage to surrounding equipment and the environment. At the same time, the multiple sealing gaskets 11 can also play a buffering role, reducing the direct contact and friction between the multiple arc-shaped connecting tubes 2 4 and the multiple connectors 3, thereby protecting the joints from damage, extending the service life of the joints, and reducing maintenance costs.

[0030] like Figure 1 、 Figure 2 and Figure 5 As shown, a multi-stage split-flap hydraulic generator thrust bearing oil cooler is provided, comprising an arc-shaped stainless steel tube 1 and an arc-shaped connecting tube 2. The number of the arc-shaped stainless steel tubes 1 is three, and both ends of the three arc-shaped stainless steel tubes 1 are integrally formed with a connector 3. The number of the arc-shaped connecting tube 2 is multiple, and the multiple connectors 3 are each provided with an arc-shaped connecting tube 2 4 on one side away from the three arc-shaped stainless steel tubes 1. Multiple bolts 5 are provided between the multiple arc-shaped connecting tubes 2 4 and the multiple connectors 3. Both ends of the multiple arc-shaped connecting tubes 2 are detachably connected with a connector 2 6, and the two connectors 2 6 that are far away from each other are uniformly connected. The body is formed with three cooling water pipes 7, and three arc-shaped connecting pipes 1 2, multiple cooling water pipes 7, and multiple arc-shaped connecting pipes 2 4 sequentially form three fixed circular wholes. The interiors of the three arc-shaped stainless steel pipes 1 are fixedly connected with partitions 8. The front surfaces of the two arc-shaped stainless steel pipes 1 at the rear are fixedly connected with delivery hoses 9. The front ends of the two delivery hoses 9 are respectively fixedly connected to the lower rear surfaces of the two arc-shaped stainless steel pipes 1 at the front. The outer wall of the frontmost arc-shaped stainless steel pipe 1 is integrally formed with a water inlet 10, and the outer wall of the rearmost arc-shaped stainless steel pipe 1 is integrally formed with a drain port 28.

[0031] During use, the three curved stainless steel tubes 1 and the multiple cooling water pipes 7 and the multiple curved connecting tubes 24 are disassembled and fixed in sequence to form three fixed circular coolers, which are sleeved inside the thrust shaft oil tank. When the thrust shaft is pushed, the coolant is transported to the inside of the uppermost curved stainless steel tube 1 through the provided water inlet 10. Due to the obstruction of the partition 8 provided inside the curved stainless steel tube 1, the coolant is transported to the multiple cooling water pipes 7 and the multiple curved connecting tubes 24 in sequence through the provided partition 8. Finally, the coolant flows to the right side of the partition 8, and then is transported to the inside of a group of circular coolers below through the provided delivery hose 9. The coolant continues to flow in a circle and is then transported to the last group of circular coolers. Finally, the coolant is discharged through the drain port 28, thereby completing the discharge and recycling of the coolant. The coolant flowing in a circle and the provision of multiple cooling water pipes 7 can increase the heat exchange time and area with the bearing oil, improve the cooling efficiency, and ensure the stable operation of the generator.

[0032] like Figure 1 、 Figure 3As shown, the front surfaces of the two rear arc-shaped connecting tubes 1 and 2 and the front surfaces of the two rear arc-shaped connecting tubes 2 and 4 are fixedly connected to support sleeves 12, and the interiors of the multiple support sleeves 12 are slidably connected to sliding circular plates 13. The centers of the front surfaces of the multiple sliding circular plates 13 are fixedly connected to adjustment rods 14, and the front ends of the multiple adjustment rods 14 are respectively fixedly connected to the rear surfaces of the two front arc-shaped connecting tubes 1 and 2 and the rear surfaces of the two front arc-shaped connecting tubes 4.

[0033] The three groups of circular coolers can be fixed together by connecting multiple support sleeves 12 and multiple adjustment rods 14. When the three groups of circular coolers are impacted by the internal water flow and the external oil flow, as well as the possible vibration, the stability of the cooler can be enhanced to prevent relative displacement or deformation between the various components. When the generator bearing is too long, the relative distance between the three coolers can be adjusted by pulling the multiple adjustment rods 14, thereby further improving the cooling efficiency and the overall flexibility of the device.

[0034] like Figure 3 As shown, the outer walls of the multiple support sleeves 12 are rotatably connected to the rotating rings 15, and the inner left sides of the multiple rotating rings 15 are fixedly connected to the engaging columns 16. The outer walls of the multiple support sleeves 12 and the inner parts of the multiple rotating rings 15 are provided with annular sliding grooves 17. The lower surfaces of the multiple adjustment rods 14 are provided with limited vertical grooves 18. The outer walls of the multiple adjustment rods 14 and the left parts of the multiple limited vertical grooves 18 are provided with multiple annular clamping grooves 19. The multiple annular clamping grooves 19 are respectively connected to the multiple limited vertical grooves 18. The right ends of the multiple engaging columns 16 respectively extend to the inside of the annular clamping grooves 19 on the right side of the multiple annular sliding grooves 17.

[0035] By rotating the rotating ring 15, the locking column 16 is driven to slide inside the annular groove 17, and at the same time, the locking column 16 is slid from the annular groove 19 to the inside of the limiting vertical groove 18. After that, the adjusting rod 14 can be pulled down to adjust to the appropriate position and then reset to rotate the rotating ring 15 to rotate the locking column 16 back to the inside of the annular groove 19, and the adjusting rod 14 can be limited and fixed again, thereby improving the stability and safety of the device.

[0036] like Figure 7As shown, a moving groove 23 is integrally formed on the right side of the rear surface of the multiple rotating rings 15, and a limiting rod 24 is fixedly connected to the left and right sides of the interior of the multiple moving grooves 23. The outer side walls of the multiple limiting rods 24 are slidably connected with L-shaped plug rods 25. The right side of the outer side wall of the multiple supporting sleeves 12 and the rear of the multiple rotating rings 15 are integrally formed with positioning grooves 26. The left ends of the multiple L-shaped plug rods 25 extend to the interior of the multiple positioning grooves 26 respectively. The outer side walls of the multiple limiting rods 24 are sleeved with return springs 27, and the two ends of the multiple return springs 27 are fixedly connected to the right side of the multiple L-shaped plug rods 25 and the inner right side of the multiple moving grooves 23 respectively.

[0037] The plug-in limit of the multiple L-shaped plug-in rods 25 and the multiple positioning grooves 26 can effectively prevent the multiple rotating rings 15 from rotating accidentally during the use of the cooler, thereby ensuring that the multiple locking columns 16 can be stably maintained in the multiple annular slots 19, maintaining the fixed state of the multiple adjustment rods 14. Before rotating the multiple rotating rings 15, it is necessary to first push the multiple L-shaped plug-in rods 25 outward to slide along the multiple limit rods 24, so that the multiple L-shaped plug-in rods 25 can be pulled out of the interior of the multiple positioning grooves 26. After that, the operator can rotate the multiple rotating rings 15 to adjust the multiple adjustment rods 14 to the appropriate height. After that, the multiple rotating rings 15 are rotated and reset again, thereby controlling the multiple L-shaped plug-in rods 25 to be reinserted into the interior of the multiple positioning grooves 26, and the multiple rotating rings 15 can continue to be limited and fixed, thereby improving the stability and reliability of the device.

[0038] like Figure 3 and Figure 4 As shown, a connecting plate 1 20 is fixedly connected to the right side of the outer wall of the multiple supporting sleeves 12 and located inside the multiple rotating rings 15. A connecting plate 21 is fixedly connected to the inner wall of the multiple rotating rings 15 and located above the multiple engaging columns 16. A return spring 1 22 is fixedly connected between the multiple connecting plates 1 20 and the multiple connecting plates 2 21 respectively.

[0039] After rotating the multiple rotating rings 15 to adjust the positions of the multiple adjusting rods 14, the multiple rotating rings 15 are loosened, and finally the multiple rotating rings 15 can be rotated and reset by the rebound of the multiple reset springs 22, thereby making the operation of the device more convenient and quick, and further improving the practicality and flexibility of the device.

[0040] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the scope of protection of the present invention.

Claims

1. A multi-stage split-flap hydraulic generator thrust bearing oil cooler, comprising an arc-shaped stainless steel pipe (1) and an arc-shaped connecting pipe (2), characterized in that: The number of the arc-shaped stainless steel tubes (1) is three, and both ends of the three arc-shaped stainless steel tubes (1) are integrally formed with a connector one (3). The number of the arc-shaped connecting tube one (2) is multiple, and the multiple connectors one (3) are each provided with an arc-shaped connecting tube two (4) on a side away from the three arc-shaped stainless steel tubes (1). Multiple bolts (5) are provided between the multiple arc-shaped connecting tubes two (4) and the multiple connectors one (3). Both ends of the multiple arc-shaped connecting tubes one (2) are detachably connected with a connector two (6), and the two connectors two (6) that are far away from each other are each integrally formed with three cooling water pipes (7). The three arc-shaped connecting tubes one (2), the multiple cooling water pipes (7), and the multiple arc-shaped connecting tubes two (4) sequentially form three fixed circular wholes. The interiors of the three arc-shaped stainless steel tubes (1) are fixedly connected with partitions (8); the front surfaces of the two arc-shaped stainless steel tubes (1) at the rear are fixedly connected with delivery hoses (9); the front ends of the two delivery hoses (9) are respectively fixedly connected to the rear surfaces of the two arc-shaped stainless steel tubes (1) at the front; the outer side wall of the frontmost arc-shaped stainless steel tube (1) is integrally formed with a water inlet (10); and the outer side wall of the rearmost arc-shaped stainless steel tube (1) is integrally formed with a drain outlet (28).

2. The multi-stage split-flap hydraulic generator thrust bearing oil cooler according to claim 1, characterized in that: Sealing pads (11) are provided at the joints between the plurality of arc-shaped connecting pipes 2 (4) and the plurality of connectors 1 (3).

3. The multi-stage split-flap hydraulic generator thrust bearing oil cooler according to claim 1, characterized in that: The front surfaces of the two arc-shaped connecting tubes 1 (2) at the rear and the front surfaces of the two arc-shaped connecting tubes 2 (4) at the rear are fixedly connected with support sleeves (12), the interiors of the plurality of support sleeves (12) are slidably connected with sliding circular plates (13), the centers of the front surfaces of the plurality of sliding circular plates (13) are fixedly connected with adjustment rods (14), and the front ends of the plurality of adjustment rods (14) are fixedly connected with the rear surfaces of the two arc-shaped connecting tubes 1 (2) at the front and the rear surfaces of the two arc-shaped connecting tubes 2 (4) at the front, respectively.

4. The multi-stage split-flap hydraulic generator thrust bearing oil cooler according to claim 3, characterized in that: The outer walls of the plurality of support sleeves (12) are rotatably connected to a rotating ring (15), the inner left sides of the plurality of rotating rings (15) are fixedly connected to a locking column (16), the outer walls of the plurality of support sleeves (12) and the inner sides of the plurality of rotating rings (15) are provided with annular sliding grooves (17), the lower surfaces of the plurality of adjustment rods (14) are provided with limiting vertical grooves (18), the outer walls of the plurality of adjustment rods (14) and the left sides of the plurality of limiting vertical grooves (18) are provided with a plurality of annular locking grooves (19), the plurality of annular locking grooves (19) are respectively connected to the plurality of limiting vertical grooves (18), and the right ends of the plurality of locking columns (16) respectively extend to the inside of the annular locking grooves (19) located on the right side of the plurality of annular sliding grooves (17).

5. The multi-stage split-flap hydraulic generator thrust bearing oil cooler according to claim 4, characterized in that: A connecting plate 1 (20) is fixedly connected to the right side of the outer wall of the plurality of support sleeves (12) and located inside the plurality of rotating rings (15); a connecting plate 2 (21) is fixedly connected to the inner wall of the plurality of rotating rings (15) and located above the plurality of engaging columns (16); and a reset spring 1 (22) is fixedly connected between the plurality of connecting plates 1 (20) and the plurality of connecting plates 2 (21).

6. The multi-stage split-flap hydraulic generator thrust bearing oil cooler according to claim 4, characterized in that: A movable groove (23) is integrally formed on the right side of the rear surface of the plurality of rotating rings (15), and a limiting rod (24) is fixedly connected to the left and right sides of the interior of the plurality of movable grooves (23). The outer side walls of the plurality of limiting rods (24) are slidably connected to an L-shaped plug rod (25). A positioning groove (26) is integrally formed on the right side of the outer side wall of the plurality of supporting sleeves (12) and located behind the plurality of rotating rings (15). The left ends of the plurality of L-shaped plug rods (25) extend to the interior of the plurality of positioning grooves (26). The outer side walls of the plurality of limiting rods (24) are sleeved with a reset spring (27). The two ends of the plurality of reset springs (27) are fixedly connected to the right side of the plurality of L-shaped plug rods (25) and the right side of the interior of the plurality of movable grooves (23).

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