Device for solving oil mist of guide bearing of hydropower station

Abstract

The utility model relates to the related technical field of bearing protection structures, in particular to a device for solving oil mist of a guide bearing of a hydropower station, which comprises a lower base and an upper base which are installed in a combined mode, and a first semi-cylindrical groove and a second semi-cylindrical groove are arranged in the upper base and the lower base respectively and used for placing the bearing and a rotating shaft respectively. A semi-circular-ring inclined groove is formed in the connecting position of the first semi-cylindrical groove and the corresponding second semi-cylindrical groove, a collecting groove is formed in the bottom of the lower base, the two ends of the collecting groove are connected with the bottoms of the corresponding semi-circular-ring inclined grooves through collecting channels, and a liquid conveying pump is arranged at the top end of the upper base. A first circulating channel and a second circulating channel are respectively arranged on the lower base and the upper base, and are matched with a liquid conveying pump and a circulating pipe to convey oil in the collecting tank into the first semi-cylindrical groove, so that leakage prevention and reutilization of oil mist are realized.

Description

Technical Field

[0001] This utility model relates to the technical field of bearing protection structure, specifically a device for solving the problem of oil mist in the guide bearings of hydropower stations. Background Technology

[0002] Oil mist leakage from the thrust bearings, upper guide bearings, and lower guide bearings of hydroelectric generators can contaminate equipment such as the generator rotor poles and stator windings. When oil mist combines with dust, it adheres to the insulation layer over a long period, affecting the unit's heat dissipation and corroding the generator windings, reducing their insulation performance, accelerating aging, shortening the generator's lifespan, and easily causing short circuits or breakdowns in the generator coils, threatening the safe operation of the entire generator unit. Bearing oil mist not only pollutes the environment but also increases operating costs, the workload of on-site personnel, and reduces unit reliability. Therefore, those skilled in the art have proposed a device to solve the problem of oil mist in the guide bearings of hydroelectric power stations, addressing the issues mentioned above. Utility Model Content

[0003] The purpose of this invention is to provide a device for solving the problem of oil mist in the guide bearings of hydropower stations, thereby addressing the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A device for solving oil mist in guide bearings of hydropower stations includes a lower base and an upper base assembled together. The lower base has a first semi-cylindrical groove at its top center and the upper base has a second semi-cylindrical groove on both sides of its top and bottom. A semi-circular annular groove is provided at the connection between the first and corresponding second semi-cylindrical grooves. The first semi-cylindrical groove is used to place the bearing and shaft. A collection groove is provided at the bottom of the lower base, and both ends of the collection groove are connected to the bottom of the corresponding semi-circular annular groove through a collection channel provided within the lower base. The upper base has a... An installation frame is installed on the outer wall of the lower base, and an infusion pump is installed inside the installation frame. A first circulation channel is provided on the side of the lower base, and one end of the first circulation channel is connected to the side of the collection tank. A second circulation channel is provided at the top center of the upper base, and the top end of the second circulation channel is connected to the outlet end of the infusion pump. The bottom end of the second circulation channel is connected to the first semi-cylindrical groove on the upper base. A connecting pipe is installed on the side of the installation frame. One end of the connecting pipe is connected to the inlet end of the infusion pump, and the other end of the connecting pipe is connected to one end of the circulation pipe. The other end of the circulation pipe is connected to the other end of the first circulation channel.

[0006] As a further improvement of this utility model: both ends of the circulation pipe are provided with mounting plates, and the two mounting plates are respectively installed to the outer wall of the lower base and the outer wall of the mounting frame by screws.

[0007] As a further improvement of this utility model: the side end of the mounting plate is not aligned with the end of the circulation pipe, and a sealing sleeve is provided on the outer wall of the end of the mounting plate.

[0008] As a further improvement of this utility model, a sealing gasket is provided on the inner wall of the second semi-cylindrical groove.

[0009] As a further embodiment of this utility model: the lower base is placed on the base, and the top of the base is provided with a shock-absorbing pad corresponding to the outer perimeter of the bottom of the lower base.

[0010] The present invention has the following advantages: the device collects the oil mist thrown out by the bearing through a semi-circular inclined groove and discharges it into the collection tank through the collection channel. The liquefied oil in the collection tank is transported to the first semi-cylindrical tank through the cooperation of the infusion pump, the first circulation channel, the second circulation channel, and the circulation pipe, thereby realizing the reuse of oil mist. It can not only prevent oil mist from leaking out, but also collect and reuse oil mist, which has stronger practicality. Attached Figure Description

[0011] Figure 1 This is a front view of the overall internal structure of an embodiment of the present utility model.

[0012] Figure 2 This is a side view of the internal structure of the lower base and the upper base in an embodiment of this utility model.

[0013] Figure 3 This is a schematic diagram of the shock-absorbing pad in an embodiment of the present invention.

[0014] Figure 4 for Figure 1 Enlarged diagram of part A in the image.

[0015] In the diagram: 1. Lower base; 2. Upper base; 3. Base; 4. Shock-absorbing pad; 5. First bolt; 6. Rotating shaft; 7. Bearing; 8. First semi-cylindrical groove; 9. Second semi-cylindrical groove; 10. Semi-circular inclined groove; 11. Sealing gasket; 12. Collection channel; 13. Collection trough; 14. First circulation channel; 15. Mounting frame; 16. Connecting pipe; 17. Infusion pump; 18. Discharge pipe; 19. Second circulation channel; 20. Second bolt; 21. Mounting plate; 22. Screw; 23. Sealing sleeve; 24. Circulation pipe. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0020] Example 1: Please refer to Figures 1 to 4A device for resolving oil mist in a guide bearing 7 of a hydropower station includes a lower base 1 and an upper base 2 assembled together. A first semi-cylindrical groove 8 is provided at the top center of the lower base 1 and at the bottom center of the upper base 2. Second semi-cylindrical grooves 9 are provided on both sides of the top of the lower base 1 and on both sides of the bottom of the upper base 2. A semi-circular annular groove 10 is provided at the connection between the first semi-cylindrical groove 8 and the corresponding second semi-cylindrical groove 9. The first semi-cylindrical groove 8 is used to place the bearing 7 and the rotating shaft 6. A collection groove 13 is provided at the bottom of the lower base 1. The two ends of the collection groove 13 are connected to the bottom of the corresponding semi-circular annular groove 10 through a collection channel 12 provided inside the lower base 1. An installation frame 15 is installed on the outer wall of the top of the upper base 2, and an infusion device is installed inside the installation frame 15. Pump 17, the lower base 1 has a first circulation channel 14 on its side, one end of the first circulation channel 14 is connected to the side of the collection tank 13, the upper base 2 has a second circulation channel 19 at the top center, the top of the second circulation channel 19 is connected to the outlet end of the infusion pump 17, the outlet end of the infusion pump 17 is connected to a discharge pipe 18, the bottom end of the discharge pipe 18 is inserted into the second circulation channel 19, the bottom end of the second circulation channel 19 is connected to the first semi-cylindrical groove 8 on the upper base 2, the mounting frame 15 has a connecting pipe 16 on its side, one end of the connecting pipe 16 is connected to the inlet end of the infusion pump 17, the other end of the connecting pipe 16 is connected to one end of the circulation pipe 24, and the other end of the circulation pipe 24 is connected to the other end of the first circulation channel 14.

[0021] Please see Figure 1 , Figure 4 The circulation pipe 24 is provided with mounting plates 21 at both ends. The two mounting plates 21 are respectively installed to the outer wall of the lower base 1 and the outer wall of the mounting frame 15 by screws 22. The side end of the mounting plate 21 is not aligned with the end of the circulation pipe 24. The outer wall of the end of the mounting plate 21 is provided with a sealing sleeve 23, so that the end of the circulation pipe 24 can be inserted and installed. The sealing sleeve 23 is used to improve the sealing at the joint. The sealing sleeve 23 is made of rubber.

[0022] Example 2: See Figure 1 , Figure 2 Based on Embodiment 1, the upper base 2 and the lower base 1 are connected by a first bolt 5, and the mounting frame 15 is installed on the outer wall of the upper base 2 by a second bolt 20. A sealing gasket 11 is provided on the inner wall of the second semi-cylindrical groove 9. The sealing sleeve 23 is made of corrosion-resistant rubber.

[0023] Please see Figure 1 , Figure 3The lower base 1 is placed on the base 3. The top of the base 3 is provided with a shock-absorbing pad 4 that corresponds to the bottom outer perimeter size of the lower base 1. The shock-absorbing pad 4 is made of shock-absorbing materials such as cushioning cotton.

[0024] Working principle: When in use, the infusion pump 17 is connected to the external control circuit. The infusion pump 17 can be started intermittently. When the rotating shaft 6 drives the bearing 7 to rotate, the oil mist thrown out slides down the inner wall of the semi-circular inclined groove 10 into the collection channel 12, and finally flows into the collection tank 13 to form liquid oil. After a period of time, the oil in the collection tank 13 is drawn by the infusion pump 17. The oil flows through the first circulation channel 14, circulation pipe 24, connecting pipe 16, and second circulation channel 19 and is discharged into the first semi-cylindrical groove 8 for the bearing 7 to reuse.

[0025] All components of this utility model are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for solving oil mist in guide bearings of hydropower stations, comprising a lower base and an upper base assembled together, characterized in that, The lower base has a first semi-cylindrical groove at the top center and the upper base has a second semi-cylindrical groove at the bottom center. A semi-circular annular groove is provided at the connection between the first and corresponding second semi-cylindrical grooves. The first semi-cylindrical groove is used to house bearings and shafts. A collection groove is provided at the bottom of the lower base, and both ends of the collection groove are connected to the bottom of the corresponding semi-circular annular groove through a collection channel within the lower base. A mounting frame is installed on the top outer wall of the upper base. An infusion pump is installed inside. A first circulation channel is provided on the side of the lower base, and one end of the first circulation channel is connected to the side of the collection tank. A second circulation channel is provided at the top center of the upper base, and the top end of the second circulation channel is connected to the outlet end of the infusion pump. The bottom end of the second circulation channel is connected to the first semi-cylindrical groove on the upper base. A connecting pipe is installed on the side of the mounting frame. One end of the connecting pipe is connected to the inlet end of the infusion pump, and the other end of the connecting pipe is connected to one end of the circulation pipe. The other end of the circulation pipe is connected to the other end of the first circulation channel.

2. The device for solving oil mist in guide bearings of hydropower stations according to claim 1, characterized in that, Both ends of the circulation pipe are equipped with mounting plates, which are respectively installed to the outer wall of the lower base and the outer wall of the mounting frame by screws.

3. The device for solving the problem of oil mist in the guide bearings of hydropower stations according to claim 2, characterized in that, The side end of the mounting plate is not aligned with the end of the circulation pipe, and a sealing sleeve is provided on the outer wall of the end of the mounting plate.

4. The device for solving the problem of oil mist in the guide bearings of hydropower stations according to claim 1, characterized in that, The inner wall of the second semi-cylindrical groove is provided with a sealing gasket.

5. The device for solving the problem of oil mist in the guide bearings of hydropower stations according to claim 1, characterized in that, The lower base is placed on the base, and the top of the base is provided with a shock-absorbing pad that corresponds to the outer perimeter of the bottom of the lower base.

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