Large-flow flushing device for steam turbine oil system

Abstract

The utility model relates to a steam turbine oil system large-flow flushing device which comprises a fixed base, a pressurizing oil guide pump is fixedly installed on the left side of the top of the fixed base, an oil tank is fixedly installed on the right side of the top of the fixed base, and the oil tank is connected with the pressurizing oil guide pump through a guide pipe. An oil guide pipe is fixedly arranged at the oil outlet end of the pressurizing oil guide pump and connected with an oil inlet pipeline on the steam turbine, a filter plate is arranged at the top of an inner cavity of the oil tank, an oil return pipe is connected to one side of the oil tank, an outlet of the oil return pipe is connected with an oil outlet pipeline on the steam turbine, and a filter cartridge is fixedly arranged above the oil return pipe. And rotating rods are rotationally arranged above the oil guide pipe and the oil return pipe correspondingly, knocking rods are evenly and fixedly arranged on the rotating rods, the lubricating oil conveying pressure is increased, meanwhile, a pipeline is knocked, the inner wall of the pipeline in an oil system is washed, backflow lubricating oil is fully filtered, and impurities can be conveniently cleaned away after washing.

Description

Technical Field

[0001] The utility model relates to a large flow flushing device for a steam turbine oil system, belonging to the technical field of oil system flushing. Background Art

[0002] A steam turbine, also known as a steam turbine engine, is a rotary steam power device. High-temperature and high-pressure steam passes through a fixed nozzle to become an accelerated airflow and is then sprayed onto the blades, causing the rotor with the blade rows to rotate and perform work externally. Lubricating oil system pipeline flushing is a safe and reliable method to remove all external impurities that may enter the oil system to prevent impurities from damaging the turbine bearings.

[0003] The utility model with patent number 201821408458.0 provides a gas turbine lubricating oil system flushing device, which meets the pressure and flow required for flushing the gas turbine lubricating oil system, can effectively flush the gas turbine lubricating oil system, and can remove internal impurities in the gas turbine lubricating oil system, meeting the flushing standards before trial operation; and the flushing device is simple to make and easy to operate; however, existing steam turbines require multiple pipelines to transport lubricating oil, and some impurities will adhere to the inner wall of the pipeline. It is difficult to flush the impurities away by flushing, which affects the flushing effect, and the lubricating oil will carry many impurities when it flows back. If it is not filtered, it will affect the subsequent use effect, and the steam turbine needs to be shut down for cleaning, affecting its operating efficiency. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes a large flow flushing device for a steam turbine oil system to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A large-flow flushing device for a steam turbine oil system comprises a fixed base, a boosting oil guide pump is fixedly installed on the left side of the top of the fixed base, an oil tank is fixedly installed on the right side of the top of the fixed base, the oil tank and the boosting oil guide pump are connected by a conduit, an oil guide pipe is fixedly provided at the oil outlet end of the boosting oil guide pump, the oil guide pipe is connected to the oil inlet pipe on the steam turbine, a filter plate is provided on the top of the inner cavity of the oil tank, an oil return pipe is connected to one side of the oil tank, the return oil pipe outlet is connected to the oil outlet pipe on the steam turbine, a filter cartridge is fixedly provided above the return oil pipe, a rotating rod is rotatably provided above the oil guide pipe and the return oil pipe, and a knocking rod is evenly fixed on the rotating rod.

[0007] Preferably, mounting holes are evenly and fixedly provided on the fixed base, and the boost oil guide pump and the oil tank are fixedly mounted on the fixed base through the mounting holes.

[0008] Preferably, a pressure gauge is fixedly provided on the oil guide pipe, and the filter plate is located below the connection between the oil tank and the oil return pipe.

[0009] Preferably, a liquid level gauge is fixedly provided on one side of the oil tank, an oil filling port is fixedly provided on the top of the oil tank, a rectangular through hole is opened on one side of the oil tank, the filter plate is arranged in the rectangular through hole, and a sealing strip plate is provided in the rectangular through hole.

[0010] Preferably, a cover plate is hinged on one side of the top of the filter cartridge, both ends of the filter cartridge are through-connected with the oil return pipe, and solenoid valves are fixedly provided in the oil return pipe and the connecting pipe.

[0011] Preferably, a mounting seat is fixedly provided on the left side of the inner cavity of the filter cartridge, a filter barrel is provided in the inner cavity of the filter cartridge, the left end of the filter barrel is fixedly connected to the mounting seat via a thread, and an oil filter membrane is fixedly provided on the outer wall and the inner wall of the filter barrel.

[0012] Preferably, a support plate is fixedly provided on the left side of the fixed base, a drive motor is fixedly mounted on the support plate, and an output shaft of the drive motor is connected to one end of the rotating rod.

[0013] Preferably, a limit block is fixedly provided at the other end of the rotating rod, a fastening ring is fixedly provided at the bottom of the limit block, and the fastening ring is sleeved on the oil inlet pipe of the turbine, and a rubber soft rod is provided at the bottom of the knocking rod.

[0014] The beneficial effects of the utility model are:

[0015] 1. By setting up a booster oil guide pump, the lubricating oil in the oil tank can be transported to the steam turbine through the booster oil guide pump when in use. When flushing is required, the output flow of the booster oil guide pump can be increased to increase the pressure and flow of the lubricating oil during transportation, thereby flushing the inner wall of the pipeline in the oil system to prevent impurities from sticking to the inner wall of the pipeline;

[0016] 2. By setting up the filter cartridge, during use, the lubricating oil will return to the oil tank again through the oil return pipe, and the lubricating oil can be filtered through the filter plate to avoid impurities during use. When flushing is required, the refluxed oil can be allowed to flow through the filter cartridge, thereby fully filtering the flushed lubricating oil and effectively filtering out the flushed impurities to ensure the quality of the oil after flushing. Moreover, after flushing, the inside of the filter cartridge can be cleaned without shutting down the steam turbine, and the filtered impurities can be cleaned out in time to ensure the subsequent filtering effect of the filter cartridge;

[0017] 3. By setting up a knocking rod, a large flow of oil can be allowed to flow in the pipeline during flushing, and the rotating rod can also be rotated, and the pipeline can be knocked by the knocking rod, which can effectively remove impurities attached to the inner wall of the pipeline and improve the flushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0019] Figure 1 This is a schematic diagram of the overall structure of a large flow flushing device for a steam turbine oil system of the utility model;

[0020] Figure 2 This is a schematic diagram of the oil tank structure of a large flow flushing device for a steam turbine oil system of the utility model;

[0021] Figure 3 This is a schematic diagram of the filter cartridge structure of a large flow flushing device for a steam turbine oil system of the utility model;

[0022] Figure 4 This is a schematic diagram of the rotating rod structure of a large flow flushing device for a steam turbine oil system of the utility model;

[0023] Numbers in the figure: 1. Fixed base; 2. Booster oil pump; 3. Oil tank; 4. Oil guide pipe; 5. Filter plate; 6. Oil return pipe; 7. Filter cartridge; 8. Rotating rod; 9. Knocking rod; 10. Pressure gauge; 11. Oil filling port; 12. Rectangular through hole; 13. Cover plate; 14. Mounting seat; 15. Filter barrel; 16. Support plate; 17. Drive motor; 18. Limit block; 19. Fastening ring. DETAILED DESCRIPTION

[0024] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0025] According to an embodiment of the utility model, a large flow flushing device for a steam turbine oil system is provided.

[0026] Embodiment 1

[0027] like Figure 1- As shown in 4, a large-flow flushing device for a turbine oil system according to an embodiment of the utility model comprises a fixed base 1, a boost oil guide pump 2 is fixedly installed on the left side of the top of the fixed base 1, an oil tank 3 is fixedly installed on the right side of the top of the fixed base 1, the oil tank 3 and the boost oil guide pump 2 are connected by a conduit, an oil guide pipe 4 is fixedly provided at the oil outlet end of the boost oil guide pump 2, the oil guide pipe 4 is connected to the oil inlet pipeline on the turbine, a filter plate 5 is provided on the top of the inner cavity of the oil tank 3, an oil return pipe 6 is connected to one side of the oil tank 3, the outlet of the oil return pipe 6 is connected to the oil outlet pipeline on the turbine, a filter cartridge 7 is fixedly provided above the oil return pipe 6, a rotating rod 8 is rotatably provided above the oil guide pipe 4 and the oil return pipe 6, a knocking rod 9 is evenly fixedly provided on the rotating rod 8, mounting holes are evenly fixedly provided on the fixed base 1, the boost oil guide pump 2 and the oil tank 3 are all fixedly installed on the fixed base 1 through the mounting holes to ensure the stability of each device on the fixed base 1 and the reliability of the turbine operation. A pressure gauge 10 is fixedly provided on the oil guide pipe 4. The filter plate 5 is located below the connection between the oil tank 3 and the return oil pipe 6. When returning the oil, it can directly fall on the filter plate 5. The pressure of the lubricating oil during transportation can be checked through the pressure gauge 10. During flushing, appropriate pressure can be guaranteed to play a better flushing role. A liquid level gauge is fixedly provided on one side of the oil tank 3. An oil filling port 11 is fixedly provided on the top of the oil tank 3. A rectangular through hole 12 is opened on one side of the oil tank 3. The filter plate 5 is arranged in the rectangular through hole 12. A sealing strip is arranged in the rectangular through hole 12. After a certain period of use, the rectangular through hole 12 can be opened to pull the filter plate 5 out of the oil tank 3, so as to facilitate the cleaning of impurities in the oil tank 3.

[0028] Embodiment 2

[0029] like Figure 1- As shown in Figure 4, a large-flow flushing device for a steam turbine oil system according to an embodiment of the utility model comprises a fixed base 1, a boost oil guide pump 2 is fixedly installed on the left side of the top of the fixed base 1, an oil tank 3 is fixedly installed on the right side of the top of the fixed base 1, the oil tank 3 and the boost oil guide pump 2 are connected by a conduit, an oil guide pipe 4 is fixedly provided at the oil outlet end of the boost oil guide pump 2, the oil guide pipe 4 is connected to the oil inlet pipeline on the steam turbine, a filter plate 5 is provided on the top of the inner cavity of the oil tank 3, an oil return pipe 6 is connected to one side of the oil tank 3, the outlet of the oil return pipe 6 is connected to the oil outlet pipeline on the steam turbine, a filter cartridge 7 is fixedly provided above the oil return pipe 6, a rotating rod 8 is rotatably provided above the oil guide pipe 4 and the oil return pipe 6, a knocking rod 9 is evenly fixed on the rotating rod 8, and a top side of the filter cartridge 7 is hinged with Cover plate 13, both ends of the filter cartridge 7 are through-connected with the return oil pipe 6, and the return oil pipe 6 and the connecting pipe are fixedly provided with solenoid valves. During normal use, the solenoid valves at both ends of the filter cartridge 7 are closed to allow the lubricating oil to flow directly from the return oil pipe 6 to the oil tank 3. During flushing, the solenoid valves at both ends of the filter cartridge 7 are opened, and the solenoid valve in the return oil pipe 6 is closed to allow the lubricating oil to flow through the filter cartridge 7, thereby achieving the purpose of flushing and filtration. A mounting seat 14 is fixedly provided on the left side of the inner cavity of the filter cartridge 7, and a filter barrel 15 is provided in the inner cavity of the filter cartridge 7. The left end of the filter barrel 15 is fixedly connected to the mounting seat 14 by a thread, and an oil filter membrane is fixedly provided on the outer wall and the inner wall of the filter barrel 15. After flushing is completed, the cover plate 13 can be opened without shutting down the turbine, so that the filter barrel 15 can be disassembled conveniently to facilitate the cleaning of impurities.

[0030] Embodiment 3

[0031] like Figure 1- As shown in Figure 4, a large-flow flushing device for a steam turbine oil system according to an embodiment of the utility model comprises a fixed base 1, a boost oil guide pump 2 is fixedly installed on the left side of the top of the fixed base 1, an oil tank 3 is fixedly installed on the right side of the top of the fixed base 1, the oil tank 3 and the boost oil guide pump 2 are connected by a conduit, an oil guide pipe 4 is fixedly provided at the oil outlet end of the boost oil guide pump 2, the oil guide pipe 4 is connected to the oil inlet pipeline on the steam turbine, a filter plate 5 is provided on the top of the inner cavity of the oil tank 3, an oil return pipe 6 is connected to one side of the oil tank 3, the outlet of the oil return pipe 6 is connected to the oil outlet pipeline on the steam turbine, a filter cartridge 7 is fixedly provided above the oil return pipe 6, a rotating rod 8 is rotatably provided above the oil guide pipe 4 and the oil return pipe 6, and the rotating rod 8 is A knocking rod 9 is evenly fixed, a support plate 16 is fixedly provided on the left side of the fixed base 1, a driving motor 17 is fixedly installed on the supporting plate 16, the output shaft of the driving motor 17 is connected to one end of the rotating rod 8, a limit block 18 is fixedly provided at the other end of the rotating rod 8, a fastening ring 19 is fixedly provided at the bottom of the limit block 18, and the fastening ring 19 is sleeved on the oil inlet pipe of the steam turbine, a rubber soft rod is provided at the bottom of the knocking rod 9, and the rotating rod 8 can be fixed above the pipe by the fastening ring 19, when flushing, the rotating rod 8 can be driven to rotate by the driving motor 17, so that the knocking rod 9 rotates and collides with the outer wall of the pipe to improve the flushing effect, and a rubber soft rod is provided on the knocking rod 9 to avoid damage to the pipe during knocking.

[0032] In summary, with the help of the above-mentioned technical scheme of the utility model, when the device is in use, the lubricating oil in the oil tank 3 is transported to the turbine through the booster oil guide pump 2, and the lubricating oil will return to the oil tank 3 again through the oil return pipe 6, and the lubricating oil will be filtered through the filter plate 5 to avoid impurities in the use process. When flushing is needed, the output flow of the booster oil guide pump 2 is increased, and the pressure and flow of the lubricating oil during transportation are increased, so as to flush the inner wall of the pipeline in the oil system to avoid impurities adhering to the inner wall of the pipeline. At the same time, the pipeline is knocked by the knocking rod 9 to effectively separate the impurities adhering to the inner wall of the pipeline, thereby improving the flushing effect, and then the reflux oil is allowed to flow through the filter cartridge 7 to fully filter the flushed lubricating oil, effectively filter out the flushed impurities, and ensure the quality of the oil after flushing. Moreover, after flushing, the steam turbine does not need to be shut down, and the inside of the filter cartridge 7 can be cleaned, and the filtered impurities can be cleaned out in time to ensure the subsequent filtering effect of the filter cartridge 7 and improve its practicality.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A large flow flushing device for a steam turbine oil system, comprising a fixed base (1), characterized in that: A boost oil guide pump (2) is fixedly mounted on the left side of the top of the fixed base (1), and an oil tank (3) is fixedly mounted on the right side of the top of the fixed base (1). The oil tank (3) and the boost oil guide pump (2) are connected via a conduit. An oil guide pipe (4) is fixedly mounted on the oil outlet end of the boost oil guide pump (2), and the oil guide pipe (4) is connected to the oil inlet pipe on the steam turbine. A filter plate (5) is provided on the top of the inner cavity of the oil tank (3). An oil return pipe (6) is connected to one side of the oil tank (3), and the outlet of the oil return pipe (6) is connected to the oil outlet pipe on the steam turbine. A filter cartridge (7) is fixedly mounted above the oil return pipe (6). A rotating rod (8) is rotatably mounted above the oil guide pipe (4) and the oil return pipe (6), and a knocking rod (9) is evenly fixedly mounted on the rotating rod (8).

2. A large flow flushing device for a steam turbine oil system according to claim 1, characterized in that: The fixed base (1) is evenly and fixedly provided with mounting holes, and the booster oil guide pump (2) and the oil tank (3) are both fixedly mounted on the fixed base (1) through the mounting holes.

3. A large flow flushing device for a steam turbine oil system according to claim 2, characterized in that: A pressure gauge (10) is fixedly provided on the oil guide pipe (4), and the filter plate (5) is located below the connection between the oil tank (3) and the oil return pipe (6).

4. A large flow flushing device for a steam turbine oil system according to claim 3, characterized in that: A liquid level gauge is fixedly provided on one side of the oil tank (3), an oil filling port (11) is fixedly provided on the top of the oil tank (3), a rectangular through hole (12) is opened on one side of the oil tank (3), the filter plate (5) is arranged in the rectangular through hole (12), and a sealing strip is provided in the rectangular through hole (12).

5. A large flow flushing device for a steam turbine oil system according to claim 4, characterized in that: A cover plate (13) is hingedly connected to one side of the top of the filter cartridge (7), both ends of the filter cartridge (7) are connected to the oil return pipe (6), and electromagnetic valves are fixedly provided in the oil return pipe (6) and the connecting pipe.

6. A large flow flushing device for a steam turbine oil system according to claim 5, characterized in that: A mounting seat (14) is fixedly provided on the left side of the inner cavity of the filter cartridge (7), a filter barrel (15) is provided in the inner cavity of the filter cartridge (7), the left end of the filter barrel (15) is fixedly connected to the mounting seat (14) via a thread, and an oil filter membrane is fixedly provided on the outer wall and the inner wall of the filter barrel (15).

7. A large flow flushing device for a steam turbine oil system according to claim 6, characterized in that: A support plate (16) is fixedly provided on the left side of the fixed base (1), a drive motor (17) is fixedly mounted on the support plate (16), and an output shaft of the drive motor (17) is connected to one end of the rotating rod (8).

8. A large flow flushing device for a steam turbine oil system according to claim 7, characterized in that: A limit block (18) is fixedly provided at the other end of the rotating rod (8), a fastening ring (19) is fixedly provided at the bottom of the limit block (18), and the fastening ring (19) is sleeved on the oil inlet pipeline of the steam turbine, and a rubber soft rod is provided at the bottom of the knocking rod (9).

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