Automatic oil supplementing device

Abstract

The utility model belongs to the technical field of steam turbine lubricating oil, and particularly relates to an automatic oil supplementing device. The automatic oil supplementing device comprises a purifying box, and a filtering layer is arranged in the purifying box. The filter layer is provided with a conical body with the middle protruding upwards and an annular groove formed in the peripheral side of the conical body, the filter layer is connected with the inner wall of the purification box through the side wall of the annular groove, and the stirrer rotationally arranged in the purification box is further connected with a scraper attached to the peripheral face of the conical body of the filter layer; the design of the conical body increases the contact area of lubricating oil and the filtering layer, the filtering efficiency of the lubricating oil is improved, the scraping plate synchronously scrapes impurities on the filtering layer in the process that the stirrer stirs the lubricating oil, the impurities are effectively prevented from being deposited on the filtering layer, and the service life of the stirrer is prolonged. And the annular groove not only forms a storage annular groove for impurities sliding down along the outer peripheral surface of the conical body, but also increases the connecting area of the filter layer and the inner wall of the purification box, so that the strength and the stability of the whole structure are improved.

Description

Technical Field

[0001] This utility model belongs to the field of turbine lubricating oil technology, specifically relating to an automatic oil replenishment device. Background Technology

[0002] A steam turbine is a rotary power machine that converts the energy of steam into mechanical work, and it is widely used in various industrial fields such as power generation and drive. During the operation of a steam turbine unit, timely replenishment of lubricating oil can extend the service life of the equipment and improve its reliability and safety.

[0003] In the existing technology, oil replenishment for steam turbines is usually done manually using oil drums. The oil replenishment process is not only time-consuming and labor-intensive, but also easily leads to oil waste. Utility model patent application number 202121061225.X discloses a lubricating oil replenishment device for steam turbine generators. The mechanical oil replenishment device greatly reduces the labor intensity of oil replenishment and improves the utilization rate of oil.

[0004] The device has a stirrer fixed at the top of the purification chamber. Magnets are installed on the stirrer blades to attract iron filings while stirring the lubricating oil. The stirred lubricating oil then passes through a filter layer for purification. However, during long-term operation, as impurities accumulate on the filter layer, its permeability gradually decreases, slowing the flow of lubricating oil and reducing filtration efficiency. In extreme cases, excessive impurity accumulation can completely clog the filter layer, preventing lubricating oil from passing through. This not only interrupts the lubricating oil purification process but may also damage the lubrication system, such as increasing the load on the oil pump and causing it to overheat.

[0005] In view of this, we have studied and improved the existing problems to provide an automatic oil replenishment device, aiming to solve the problems and improve its practical value through this technology. Utility Model Content

[0006] This invention provides an automatic oil replenishment device to solve the problems and deficiencies mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model automatic oil replenishment device is as follows:

[0008] The system includes an oil storage tank, a working tank, a purification tank, and a refrigeration tank. The oil storage tank is connected to the working tank via a first conveying pipe, and the working tank is connected to the purification tank via a second conveying pipe. The purification tank is connected to the refrigeration tank via a pipe. An agitator is rotatably connected inside the purification tank, and a filter layer is also provided inside the purification tank. The filter layer has a cone-shaped body that bulges upward in the middle and a bottom wall around the cone-shaped body. The bottom wall is annular and concave, thus forming an annular groove around the cone-shaped body. The filter layer is connected to the inner wall of the purification tank through the side wall of the annular groove. A scraper is connected to the bottom of the agitator and the scraper is attached to the outer peripheral surface of the cone-shaped body of the filter layer.

[0009] The beneficial effects are:

[0010] This invention improves upon existing lubricating oil replenishment devices for steam turbine generators by dividing the filter layer within the purification chamber into two parts: a cone-shaped part in the center and a bottom wall on the periphery of the cone. The cone-shaped design increases the contact area between the lubricating oil and the filter layer, improving filtration efficiency. Simultaneously, unlike existing systems where a scraper is mounted on a rotating agitator within the purification chamber and conforms to the outer periphery of the cone, this invention scrapes impurities from the filter layer while the agitator stirs the lubricating oil, effectively preventing impurity deposition and thus enhancing the stability and reliability of the entire lubrication system. The bottom wall located on the periphery of the cone not only serves as a connection structure between the filter layer and the inner wall of the purification chamber, but also allows the scraped impurities to slide down along the outer periphery of the cone onto the bottom wall when the scraper removes impurities. The bottom wall of the filter layer is designed as an annular groove on the periphery of the cone, forming a storage groove for impurities. The downward-concave groove increases the storage area of ​​impurities, reduces the frequency of manual cleaning, and reduces the downtime of the device, thereby improving the utilization rate of the equipment and bringing higher economic benefits. The setting of the annular groove also increases the connection area between the filter layer and the inner wall of the purification chamber, thereby improving the strength and stability of the entire structure.

[0011] Furthermore, the annular groove on the periphery of the cone is formed by bending the bottom end of the cone.

[0012] The beneficial effects are: the annular groove and the cone shape are integrally formed, which saves production time and material consumption and reduces production costs.

[0013] Furthermore, the cone angle of the filter layer cone is 30° to 60°.

[0014] The beneficial effects are: setting the cone angle in the range of 30° to 60° can ensure the uniform distribution of lubricating oil on the filter layer, thereby improving the efficiency of the filter layer; at the same time, it also helps impurities to be more effectively trapped on the filter layer.

[0015] Furthermore, the mesh structure of the filter layer consists of rhomboid or circular pores.

[0016] The beneficial effects are: the mesh structure has diamond-shaped or circular holes, the structure is simple, and the filtration process has strong stability and reliability.

[0017] Furthermore, the refrigerator is also equipped with a fan.

[0018] The beneficial effect is that the fan accelerates the air circulation inside the refrigerator, which helps to cool the lubricating oil.

[0019] Furthermore, the fans are installed on the side wall of the refrigerator, with three fans spaced vertically.

[0020] The beneficial effects are: by selecting the number of fans to start according to the cooling requirements of the lubricating oil, the mixing and exchange of hot and cold air can be promoted more effectively, thereby improving the heat exchange efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0023] Figure 3 This is a cross-sectional view of the purification box in this utility model.

[0024] In the diagram: 1. Oil storage tank; 2. Connecting pipe; 3. Feed pipe; 4. Check valve; 5. Electric push rod; 6. Telescopic rod; 7. Sealing plate; 8. Displacement sensor; 9. First conveying pipe; 10. Working box; 11. First oil pump; 12. Second conveying pipe; 13. Purification box; 14. Agitator; 15. Magnet; 16. Scraper; 17. Filter layer; 18. Second oil pump; 19. Spiral tube; 20. Refrigeration box. Detailed Implementation

[0025] 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.

[0026] The technical solution adopted by the automatic oil replenishment device provided by this utility model is as follows: Figure 1 and Figure 2As shown, a connecting pipe 2 is fixedly connected to the top of the oil storage tank 1, and a feed pipe 3 is fixedly connected to the surface of the connecting pipe 2. A one-way valve 4 is provided on the surface of the connecting pipe 2. An electric push rod 5 and a telescopic rod 6 are fixedly installed inside the oil storage tank 1, and a sealing plate 7 is fixedly connected to the top of the telescopic rod 6. A displacement sensor 8 is fixedly installed inside the oil storage tank 1. A working box 10 is fixedly connected to one side of the oil storage tank 1, and the working box 10 and the oil storage tank 1 are connected through a first conveying pipe 9. A first oil pump 11 is fixedly installed on one side of the working box 10, and the purification box 13 and the working box 10 are connected through a second conveying pipe 12. An agitator 14 is rotatably connected inside the purification box 13, and a magnet 15 is provided on the surface of the agitator 14. A filter layer 17 is fixedly provided inside the purification box 13, and the filter layer 17 is conical. A second oil pump 18 is fixedly installed on the surface of the purification box 13. A spiral tube 19 is fixedly connected to one side of the second oil pump 18. The spiral tube 19 is fixed inside the refrigerator box 20. Multiple fans are fixedly installed inside the refrigerator box 20 at intervals. The spiral tube 19 is connected to the connecting pipe 2.

[0027] like Figure 3 As shown, the filter layer 17 inside the purification box 13 is divided into two parts: one part is a cone-shaped body located in the middle, and the other part is a bottom wall located on the periphery of the cone-shaped body. The bottom wall is circular and recessed downwards, thus forming an annular groove on the periphery of the cone-shaped body. The filter layer 17 is connected to the inner wall of the purification box 13 through the side wall of the annular groove. The bottom of the stirrer 14 is provided with a scraper 16 that fits against the outer peripheral surface of the cone-shaped body.

[0028] In use, lubricating oil is injected into the oil storage tank 1 through the feed pipe 3. The lubricating oil squeezes the sealing plate 7, causing the sealing plate 7 to move downwards until the displacement sensor 8 detects that the sealing plate 7 has moved downwards to a certain position, at which point the oiling stops. The electric push rod 5 drives the sealing plate 7 to move upwards, squeezing the lubricating oil from the first conveying pipe 9 into the working tank 10. The first oil pump 11 is started, and the first oil pump 11 delivers the lubricating oil from the working tank 10 through the second conveying pipe 12 into the purification tank 13. At the same time, the agitator 14 is started, and the agitator 14 stirs the lubricating oil flowing into the purification tank 13. Magnet 15 attracts iron filings in the lubricating oil. The lubricating oil passes through the filter layer 17, which has a conical shape and annular grooves, to the bottom of the purification box 13. The conical shape of the filter layer 17 increases the contact area between the lubricating oil and the filter layer. The rotation of the agitator 14 drives the scraper 16 to rotate, scraping the surface of the filter layer 17 to prevent impurities from clogging the conical shape. The scraped impurities slide down the outer circumference of the conical shape into the annular groove, which forms a storage groove for impurities. The downward-concave groove increases the storage area of ​​impurities, thereby avoiding frequent shutdowns to clean the impurities in the groove.

[0029] The second oil pump 18 is started to draw the purified lubricating oil into the spiral tube 19. The refrigerator 20 cools the temperature of the purified lubricating oil. Three fans are installed at intervals on the upper and lower sides of the side wall of the refrigerator 20. The number of fans can be selected to start according to the cooling requirements of the lubricating oil, blowing air into the lubricating oil in the spiral tube 19 to accelerate the air circulation inside the refrigerator 20 and accelerate the cooling of the lubricating oil. The lubricating oil in the spiral tube 19 returns to the oil storage tank 1.

[0030] Of course, in other embodiments, the annular groove and the cone-shaped body can be manufactured separately and then connected.

[0031] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic oil replenishment device, comprising an oil storage tank (1), a working tank (10), a purification tank (13), and a refrigeration tank (20), wherein the oil storage tank (1) is connected to the working tank (10) via a first conveying pipe (9), the working tank (10) is connected to the purification tank (13) via a second conveying pipe (12), the purification tank (13) is connected to the refrigeration tank (20) via a pipe, a stirrer (14) is rotatably connected inside the purification tank, and a filter layer (17) is also provided inside the purification tank (13), characterized in that, The filter layer (17) has a cone-shaped body that protrudes upward in the middle and a bottom wall on the periphery of the cone-shaped body. The bottom wall is circular and recessed downward, thus forming an annular groove on the periphery of the cone-shaped body. The filter layer (17) is connected to the inner wall of the purification box (13) through the side wall of the annular groove. The bottom of the stirrer (14) is connected to a scraper (16), which is attached to the outer periphery of the cone-shaped body of the filter layer (17).

2. The automatic oil replenishment device according to claim 1, characterized in that: The annular groove on the periphery of the cone is formed by bending the bottom end of the cone.

3. An automatic oil replenishment device according to claim 1 or 2, characterized in that: The cone angle of the cone-shaped body of the filter layer (17) is 30° to 60°.

4. An automatic oil replenishment device according to claim 1 or 2, characterized in that: The mesh structure of the filter layer (17) is a rhomboid or circular hole.

5. An automatic oil replenishment device according to claim 1 or 2, characterized in that: The refrigerator (20) is also equipped with a fan.

6. An automatic oil replenishment device according to claim 5, characterized in that: The fan is installed on the side wall of the refrigerator (20), and three fans are installed at intervals above and below.

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