Turbine blade cleaning device

Abstract

The utility model relates to the technical field of steam turbine blade cleaning, and discloses a steam turbine blade cleaning device which comprises a workbench, a protective shell and a sealing plate, an overturning device is arranged on the inner wall of the protective shell, a cleaning device is arranged on the outer wall of the protective shell, and a waste water recycling device is arranged at the bottom of the workbench. The overturning device comprises a motor and fixing plates, when the motor works, blades clamped and fixed between the fixing plates are driven to rotate to adjust the angles of the blades, the cleaning device comprises a water tank, a first water pump and a spray head, the blades are placed on the inner wall of a fixing frame, then an adjusting screw rod is rotated to push the fixing plates to move, and the blades are cleaned; the blades are extruded and fixed through the fixing plate, then the motor is controlled to work to drive the blades to rotate, water in the water tank is pumped out through the first water pump, the water is fed into the water pipe, then the water is sprayed out through the spray head, the rotating blades are cleaned, and the purpose of all-directional cleaning of the blades is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam turbine blade cleaning, in particular to a steam turbine blade cleaning device. Background Art

[0002] Blades are key parts of steam turbines and are also one of the most delicate and important parts. They are subjected to high temperature, high pressure, huge centrifugal force, steam force, steam excitation force, corrosion and vibration, and water drop erosion in the wet steam zone under extremely harsh conditions.

[0003] The existing steam turbine blade cleaning device can refer to the Chinese utility model patent with the authorization announcement number CN217393111U, which discloses a steam turbine blade cleaning device, "which includes a reciprocating mechanism, including a first support platform and a second support platform symmetrically arranged, and a transmission assembly arranged above the first support platform and the second support platform; a cleaning mechanism, including a first water storage tank arranged below the transmission assembly and matched with the transmission assembly, and a cleaning assembly matched with the first water storage tank; the utility model cleans the steam turbine blades of steam turbines of different sizes through the reciprocating mechanism and the cleaning mechanism. "

[0004] When the above device is in use, it cleans the blades on the turbine. The reciprocating mechanism can adjust the length of the reciprocating movement and adjust the reciprocating motion for turbines of different lengths. However, the above device is not convenient for comprehensive cleaning of the blades, resulting in reduced cleaning effect of the blades. In addition, the above device is not convenient for recycling waste water, resulting in waste of water. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a turbine blade cleaning device, which has the advantages of being able to drive the blades to rotate and achieve all-round cleaning of the blades, and has the advantages of being able to recycle the waste water after cleaning and reduce water waste, thereby solving the problems raised by the above-mentioned background technology.

[0006] The utility model provides the following technical solution: a steam turbine blade cleaning device, comprising a workbench, a protective shell and a sealing plate, the inner wall of the protective shell is provided with a turning device, the outer wall of the protective shell is provided with a cleaning device, and the bottom of the workbench is provided with a wastewater recovery device;

[0007] The flipping device includes a motor and a fixing plate, and when the motor is working, it drives the blades clamped and fixed between the fixing plates to rotate to adjust the angle of the blades;

[0008] The cleaning device comprises a water tank, a first water pump and a nozzle, and when the first water pump is working, water in the water tank is pumped out and the blades are cleaned by the nozzle;

[0009] The wastewater recovery device comprises a filter box and a second water pump, wherein the filter box filters the wastewater, and the second water pump sends the filtered wastewater back to the water tank.

[0010] As a preferred technical solution of the utility model, the output shaft end of the motor is inserted into the inner wall of the protective shell and rotatably connected to the inner wall of the protective shell, the output shaft end of the motor is fixedly connected to a fixing frame, the inner wall of the fixing frame is threadedly connected to an adjusting screw, and one end of the adjusting screw is fixedly connected to the fixing plate.

[0011] As a preferred technical solution of the utility model, a hose is fixedly connected to the top of the water tank, and one end of the hose away from the water tank is fixedly connected to the water inlet of the first water pump, and the water outlet end of the first water pump is fixedly connected to a water pipe, one end of the water pipe is inserted into the inner wall of the protective shell, and one end of the water pipe is fixedly connected to the nozzle.

[0012] As a preferred technical solution of the utility model, the sealing plate is rotatably connected to the inner wall of the protective shell by a hinge, a collecting groove is provided at the top of the workbench located at the bottom of the protective shell, and a through hole is provided at the bottom of the collecting groove.

[0013] As a preferred technical solution of the utility model, the wastewater recovery device also includes a guide pipe, one end of the guide pipe corresponds to the position of the through hole opened at the bottom of the collecting tank, the bottom of the guide pipe is fixedly connected to the top of the filter box, the inner wall of the filter box is slidably connected with a filter plate, the bottom of the filter box is fixedly connected with a connecting pipe by bolts, and the end of the connecting pipe away from the filter box is fixedly connected to the second water pump.

[0014] As a preferred technical solution of the utility model, a circular hole is opened at a position corresponding to the connecting pipe at the bottom of the filter box, and the water outlet end of the second water pump is fixedly connected to the water tank.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The steam turbine blade cleaning device places the blade on the inner wall of the fixing frame, and then rotates the adjusting screw to push the fixing plate to move, so that the fixing plate squeezes and fixes the blade, and then controls the motor to drive the blade to rotate, uses the first water pump to pump water out of the water tank, sends the water into the water pipe, and then uses the nozzle to spray the water to clean the rotating blade, so as to achieve the purpose of all-round cleaning of the blade.

[0017] 2. The steam turbine blade cleaning device collects the cleaned wastewater in the collecting tank through the opening of the collecting tank, and then flows into the filter box through the guide pipe. The wastewater is filtered by the filter plate provided in the inner wall of the filter box. The filtered wastewater enters the connecting pipe, and then the second water pump is used to send the filtered water in the connecting pipe into the water tank, thereby reducing the residual impurities in the wastewater, facilitating the reuse of the wastewater and reducing water waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the cleaning device of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the turning device of the utility model.

[0021] In the figure: 1. workbench; 2. protective shell; 3. sealing plate; 4. turning device; 401. motor; 402. fixing frame; 403. adjusting screw; 404. fixing plate; 5. cleaning device; 501. water tank; 502. first water pump; 503. water pipe; 504. nozzle; 6. collecting tank; 7. wastewater recovery device; 701. guide pipe; 702. filter box; 703. filter plate; 704. connecting pipe; 705. second water pump. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 - Figure 3 A steam turbine blade cleaning device comprises a workbench 1, a protective shell 2 and a sealing plate 3, the inner wall of the protective shell 2 is provided with a turning device 4, the outer wall of the protective shell 2 is provided with a cleaning device 5, and the bottom of the workbench 1 is provided with a wastewater recovery device 7;

[0024] The flipping device 4 includes a motor 401 and a fixed plate 404, and when the motor 401 is working, it drives the blades clamped and fixed between the fixed plates 404 to rotate to adjust the angle of the blades. The output shaft end of the motor 401 is inserted into the inner wall of the protective shell 2 and is rotatably connected to the inner wall of the protective shell 2. The output shaft end of the motor 401 is fixedly connected to the fixing frame 402, and the inner wall of the fixing frame 402 is threadedly connected with an adjusting screw 403, and one end of the adjusting screw 403 is fixedly connected to the fixing plate 404. The blade is placed on the inner wall of the fixing frame 402, and then the adjusting screw 403 is rotated to push the fixing plate 404 to move, so that the fixing plate 404 squeezes and fixes the blade, and then the motor 401 is controlled to work to drive the blade to rotate, so as to adjust the angle of the blade.

[0025] The cleaning device 5 includes a water tank 501, a first water pump 502 and a nozzle 504. When the first water pump 502 is working, water in the water tank 501 is pumped out and the blades are cleaned by the nozzle 504. A hose is fixedly connected to the top of the water tank 501, and one end of the hose away from the water tank 501 is fixedly connected to the water inlet of the first water pump 502. A water pipe 503 is fixedly connected to the water outlet end of the first water pump 502. One end of the water pipe 503 is inserted into the inner wall of the protective shell 2, and one end of the water pipe 503 is fixedly connected to the nozzle 504. The first water pump 502 is used to pump water out of the water tank 501 and send the water into the water pipe 503. The nozzle 504 is then used to spray the water to clean the rotating blades, thereby achieving the purpose of all-round cleaning of the blades.

[0026] The wastewater recovery device 7 includes a filter box 702 and a second water pump 705, and the filter box 702 filters the wastewater, and the second water pump 705 returns the filtered wastewater to the water tank 501. The wastewater recovery device 7 also includes a guide pipe 701, one end of the guide pipe 701 corresponds to the position of the through hole opened at the bottom of the collecting tank 6, the bottom of the guide pipe 701 is fixedly connected to the top of the filter box 702, the inner wall of the filter box 702 is slidably connected with a filter plate 703, the bottom of the filter box 702 is fixedly connected with a connecting pipe 704 by bolts, and the end of the connecting pipe 704 away from the filter box 702 is fixedly connected to the second water pump 705. A circular hole is provided at the bottom of the filter box 702 at a position corresponding to the connecting pipe 704, and the outlet end of the second water pump 705 is fixedly connected to the water tank 501. The cleaned wastewater is concentrated in the collecting tank 6 through the opened collecting tank 6, and then flows into the filter box 702 through the guide pipe 701. The wastewater is filtered by the filter plate 703 provided on the inner wall of the filter box 702, and the filtered wastewater enters the connecting pipe 704. Then, the second water pump 705 is operated to send the filtered water in the connecting pipe 704 into the water tank 501, so as to reduce the residual impurities in the wastewater and facilitate the reuse of the wastewater.

[0027] The sealing plate 3 is rotatably connected to the inner wall of the protective shell 2 through a hinge. A collecting groove 6 is provided at the top of the workbench 1 at the bottom of the protective shell 2, and a through hole is provided at the bottom of the collecting groove 6. The sealing plate 3 can prevent water from splashing.

[0028] Working principle: when in use, the blades are placed on the inner wall of the fixing frame 402, and then the adjusting screw 403 is rotated to push the fixing plate 404 to move, so that the fixing plate 404 squeezes and fixes the blades, and then the motor 401 is controlled to drive the blades to rotate, and the first water pump 502 is used to pump out the water in the water tank 501, and the water is sent to the water pipe 503, and then the nozzle 504 is used to spray the water to clean the rotating blades, and the cleaned waste water is concentrated in the collecting tank 6 through the opened collecting tank 6, and then flows into the filter box 702 through the guide pipe 701, and the waste water is filtered by the filter plate 703 provided on the inner wall of the filter box 702, and the filtered waste water enters the connecting pipe 704, and then the second water pump 705 is used to send the filtered water in the connecting pipe 704 into the water tank 501, so as to reduce the residual impurities in the waste water, facilitate the reuse of the waste water, and reduce the waste of water.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam turbine blade cleaning device, comprising a workbench (1), a protective shell (2) and a sealing plate (3), characterized in that: The inner wall of the protective shell (2) is provided with a turning device (4), the outer wall of the protective shell (2) is provided with a cleaning device (5), and the bottom of the workbench (1) is provided with a wastewater recovery device (7); The turning device (4) comprises a motor (401) and a fixing plate (404), and when the motor (401) is in operation, it drives the blades clamped and fixed between the fixing plates (404) to rotate so as to adjust the angle of the blades; The cleaning device (5) comprises a water tank (501), a first water pump (502) and a nozzle (504), and when the first water pump (502) is in operation, water in the water tank (501) is pumped out and the blades are cleaned using the nozzle (504); The wastewater recovery device (7) comprises a filter box (702) and a second water pump (705), wherein the filter box (702) performs filtering treatment on the wastewater, and the second water pump (705) returns the filtered wastewater to the water tank (501).

2. A steam turbine blade cleaning device according to claim 1, characterized in that: The output shaft end of the motor (401) is inserted into the inner wall of the protective shell (2) and is rotatably connected to the inner wall of the protective shell (2); the output shaft end of the motor (401) is fixedly connected to a fixing frame (402); the inner wall of the fixing frame (402) is threadedly connected to an adjusting screw (403); and one end of the adjusting screw (403) is fixedly connected to a fixing plate (404).

3. A steam turbine blade cleaning device according to claim 1, characterized in that: A hose is fixedly connected to the top of the water tank (501), and one end of the hose away from the water tank (501) is fixedly connected to the water inlet of the first water pump (502), and a water pipe (503) is fixedly connected to the water outlet of the first water pump (502), one end of the water pipe (503) is inserted into the inner wall of the protective shell (2), and one end of the water pipe (503) is fixedly connected to the nozzle (504).

4. A steam turbine blade cleaning device according to claim 1, characterized in that: The sealing plate (3) is rotatably connected to the inner wall of the protective shell (2) via a hinge, and a collecting groove (6) is provided at the top of the workbench (1) at a position located at the bottom of the protective shell (2), and a through hole is provided at the bottom of the collecting groove (6).

5. The steam turbine blade cleaning device according to claim 1, characterized in that: The wastewater recovery device (7) further comprises a guide pipe (701), one end of the guide pipe (701) corresponds to the position of a through hole opened at the bottom of the collecting tank (6), the bottom of the guide pipe (701) is fixedly connected to the top of the filter box (702), a filter plate (703) is slidably connected to the inner wall of the filter box (702), the bottom of the filter box (702) is fixedly connected to a connecting pipe (704) by means of bolts, and one end of the connecting pipe (704) away from the filter box (702) is fixedly connected to a second water pump (705).

6. A steam turbine blade cleaning device according to claim 5, characterized in that: A circular hole is provided at a position on the bottom of the filter box (702) corresponding to the connecting pipe (704), and the water outlet end of the second water pump (705) is fixedly connected to the water box (501).

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