Cleaning device for steam turbine rotor

Abstract

The utility model discloses a cleaning device for a steam turbine rotor. The cleaning device comprises a base, a mounting seat, a driving device and a flushing mechanism, wherein the mounting seat is fixed on the base and is used for supporting the steam turbine rotor; the driving device is fixed on the mounting seat and is used for driving the steam turbine rotor to rotate; compared with the prior art, the cleaning device for the steam turbine rotor has the advantages that the movable support provided with the spray head can be driven to enter the position between blades of the steam turbine rotor through the moving mechanism, and the spray head can be driven to swing in the horizontal direction through the swing mechanism; the lifting block can drive the spray head to move in the height direction, when the steam turbine rotor is cleaned, the cleaning precision and coverage rate of the steam turbine rotor can be greatly improved, the problem of cleaning dead corners is solved, and the overall efficiency and effect of cleaning operation are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine rotor cleaning technology, and in particular to a cleaning device for steam turbine rotors. Background Technology

[0002] In the field of steam turbine rotor cleaning technology, existing cleaning devices mostly employ fixed spray pipes, supported by a base. The base is used to fix the steam turbine rotor for easy cleaning operation. Specifically, a steam turbine rotor cleaning device disclosed in Chinese Utility Model Patent Application No. 202123307842.6 has a water tank at the top of the base. Water from the tank is pumped into a connecting pipe and then delivered to the spray pipe, ultimately rinsing the steam turbine rotor through the spray nozzles. However, this device has significant limitations: because the spray pipes are fixed and the rinsing angle is not adjustable, and the blades of steam turbine rotors are often densely packed, many hard-to-reach areas cannot be thoroughly cleaned, affecting the cleaning effect and efficiency.

[0003] To overcome this technical deficiency, this utility model proposes a new cleaning device for steam turbine rotors, which aims to achieve all-round cleaning of steam turbine rotor blades by adding a movable and swingable flushing mechanism. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a cleaning device for steam turbine rotors to solve the above problems.

[0005] To achieve the above objectives, this utility model provides a cleaning device for a steam turbine rotor, comprising a base, a mounting seat fixed on the base for supporting the steam turbine rotor, a drive device fixed on the mounting seat for driving the steam turbine rotor to rotate, and a rinsing mechanism disposed on the mounting seat for rinsing the steam turbine rotor.

[0006] The flushing mechanism includes a back plate fixed on the base, a movable bracket mounted on the back plate, a moving mechanism connected to the back plate for driving the movable bracket to move between the turbine rotor blades, a nozzle mounted on the movable bracket, a swinging mechanism mounted on the movable bracket for driving the nozzle to swing in the horizontal direction, and a water supply device fixed to the base for supplying water to the nozzle.

[0007] Preferably, the nozzle is rotatably connected to the movable bracket, the swing mechanism is a servo motor, the servo motor is fixedly connected to the movable bracket, and the output shaft of the servo motor is fixedly connected to the rotation shaft of the nozzle.

[0008] Preferably, the movable support is a long rod structure, the back plate is fixed with a vertical slide rail, a lifting block is slidably arranged in the vertical slide rail, one end of the movable support is connected to the lifting block, and the moving mechanism includes a swing motor fixed on the lifting block for driving the movable support to swing in the vertical direction.

[0009] Preferably, the water supply equipment includes a water tank fixed on the base, a fixed pipe fixed to the water tank, a water pump connected between the fixed pipe and the water tank, and a water pipe connected between the fixed pipe and the nozzle.

[0010] Preferably, the vertical slide rail is provided with a lifting mechanism for driving the lifting block to move.

[0011] Preferably, the lifting mechanism is a motor lead screw mechanism.

[0012] Preferably, the base is provided with a water collection tank, and the water collection tank is connected to the water tank through a water filtration device.

[0013] Compared with the prior art, this utility model has the following advantages: This utility model provides a cleaning device for steam turbine rotors. Through a moving mechanism, a movable bracket equipped with a nozzle can be driven to enter between the blades of the steam turbine rotor. Through a swinging mechanism, the nozzle can be driven to swing in the horizontal direction. Through a lifting block, the nozzle can be driven to move in the vertical direction. When cleaning the steam turbine rotor, it can significantly improve the accuracy and coverage of the cleaning of the steam turbine rotor, solve the problem of cleaning dead corners, and significantly improve the overall efficiency and effect of the cleaning operation. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a top view of the structure of this utility model.

[0017] Figure 3 This is a side view of the present invention.

[0018] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0019] Figure 5 This utility model Figure 1 Enlarged structural diagram at point B.

[0020] In the diagram: 10. Base; 20. Steam turbine rotor; 30. Mounting seat; 40. Drive unit; 50. Flushing mechanism; 51. Back plate; 52. Movable bracket; 53. Moving mechanism; 54. Nozzle; 55. Swinging mechanism; 56. Water supply equipment; 561. Water tank; 562. Fixed pipe; 563. Water pump; 564. Water pipe; 57. Vertical slide rail; 58. Lifting block; 60. Lifting mechanism; 70. Water collection tank; 80. Water filtration equipment. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-5 The specific embodiments of this utility model will be described in further detail.

[0022] like Figure 1-5 As shown, this utility model discloses a cleaning device for a steam turbine rotor, comprising a base 10, a mounting seat 30 fixed on the base 10 for supporting a steam turbine rotor 20, a drive device 40 fixed on the mounting seat 30 for driving the steam turbine rotor 20 to rotate, and a flushing mechanism 50 disposed on the mounting seat 30 for flushing the steam turbine rotor 20. The mounting seats 30 are two in number, fixed on both sides of the surface of the base 10, for supporting and limiting the shaft portion of the steam turbine rotor 20 from both ends. The drive device 40 is fixed on one of the mounting seats 30 for driving the steam turbine rotor 20 to rotate, enabling the flushing mechanism 50 to flush the steam turbine rotor 20 from different positions on the side.

[0023] In this embodiment, the rinsing mechanism 50 includes a back plate 51 fixed on the base 10, a movable bracket 52 mounted on the back plate 51, a moving mechanism 53 connected to the back plate 51 for driving the movable bracket 52 to move between the blades of the turbine rotor 20, a nozzle 54 mounted on the movable bracket 52, a swinging mechanism 55 mounted on the movable bracket 52 for driving the nozzle 54 to swing in the horizontal direction, and a water supply device 56 fixed to the base 10 for supplying water to the nozzle 54. In use, the turbine rotor 20 is first installed on the mounting base 30, and then the movable bracket 52 is driven by the moving mechanism 53 to enter between the blade gaps on the side of the turbine rotor 20, so that the nozzle 54 can reach the gaps between adjacent blades of the turbine rotor 20. The water supply device 56 sends cleaning water into the nozzle 54, and the nozzle 54 sprays the cleaning water onto the surface of the blades. At the same time, the swinging mechanism 55 drives the nozzle 54 to swing, changing the rinsing angle and reducing the dead angle of rinsing.

[0024] In some embodiments, such as Figure 5 As shown, the nozzle 54 is rotatably connected to the movable bracket 52, the swing mechanism 55 is a servo motor, the servo motor is fixedly connected to the movable bracket 52, and the output shaft of the servo motor is fixedly connected to the rotation shaft of the nozzle 54.

[0025] In some embodiments, such as Figure 4 As shown, the movable support 52 is a long rod structure, and a vertical slide rail 57 is fixed on the back plate 51. A lifting block 58 is slidably arranged in the vertical slide rail 57. One end of the movable support 52 is connected to the lifting block 58. The moving mechanism 53 includes a swing motor fixed on the lifting block 58 for driving the movable support 52 to swing in the vertical direction. The height of the nozzle 54 can be adjusted by setting the lifting block 58. By rotating the movable support 52 and the lifting block 58, when placing the turbine rotor 20, the movable support 52 can be rotated to a vertical state by the swing motor, so that the turbine rotor 20 can be placed on the mounting base 30. After connecting the turbine rotor 20 to the drive device 40, the movable support 52 can be swung between the blades of the turbine rotor 20 by the swing motor.

[0026] In some embodiments, such as Figure 1-3 As shown, the water supply equipment 56 includes a water tank 561 fixed on the base 10, a fixed pipe 562 fixed to the water tank 561, a water pump 563 connected between the fixed pipe 562 and the water tank 561, and a water pipe 564 connected between the fixed pipe 562 and the nozzle 54. The water tank 561 is used to store water for cleaning the turbine rotor 20. After being pumped by the water pump 563 to the fixed pipe 562, the water enters several different water pipes 564. The water pipes 564 are flexible hoses. The water then enters the nozzle 54 through the water pipes 564 and is sprayed onto the surface of the turbine rotor 20 through the nozzle 54.

[0027] Furthermore, the vertical slide rail 57 is equipped with a lifting mechanism 60 that drives the lifting block 58 to move. Through the setting of the lifting mechanism 60, the lifting block 58 can move up and down within the vertical slide rail 57, thereby driving the nozzle 54 to move up and down and increasing the rinsing range.

[0028] In some embodiments, the lifting mechanism 60 is a motor lead screw mechanism.

[0029] In some embodiments, the base 10 is provided with a water collection tank 70, which is connected to the water tank 561 through a water filtration device 80. The water filtration device 80 is used to filter the wastewater during cleaning. The water filtration device 80 is relatively mature in the prior art and will not be described in detail here.

[0030] This utility model aims to provide a cleaning device for steam turbine rotors. By adding a movable and swingable flushing mechanism, it solves the problem in the prior art that the fixed flushing angle of the spray pipe makes it difficult to clean the dense areas of the steam turbine rotor blades, thereby improving the cleaning effect and efficiency.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A cleaning device for a steam turbine rotor, characterized in that The utility model provides a steam turbine rotor washing device, which comprises a base (10), a mounting seat (30) fixed on the base (10) for supporting a steam turbine rotor (20), a driving device (40) fixed on the mounting seat (30) for driving the steam turbine rotor (20) to rotate and a washing mechanism (50) arranged on the mounting seat (30) for washing the steam turbine rotor (20). The washing mechanism (50) comprises a back plate (51) fixed on the base (10), a movable support (52) mounted on the back plate (51), a moving mechanism (53) connected with the back plate (51) for driving the movable support (52) to move between the blades of the steam turbine rotor (20), a spray head (54) arranged on the movable support (52), a swing mechanism (55) arranged on the movable support (52) for driving the spray head (54) to swing in the horizontal direction and a water supply device (56) fixed on the base (10) for supplying water to the spray head (54).

2. A cleaning device for a steam turbine rotor according to claim 1, characterized in that The spray head (54) is rotationally connected with the movable support (52), the swing mechanism (55) is a servo motor, the servo motor is fixedly connected with the movable support (52), and the output shaft of the servo motor is fixedly connected with the rotating shaft of the spray head (54).

3. A cleaning device for a steam turbine rotor according to claim 2, characterized in that The movable support (52) is in the form of a long rod, the back plate (51) is fixed with a vertical sliding rail (57), a lifting block (58) is slidably arranged in the vertical sliding rail (57), one end of the movable support (52) is connected with the lifting block (58), and the moving mechanism (53) comprises a swing motor fixed on the lifting block (58) for driving the movable support (52) to swing in the vertical direction.

4. A cleaning device for a steam turbine rotor according to claim 3, characterized in that The water supply device (56) comprises a water tank (561) fixed on the base (10), a fixed pipe (562) fixed on the water tank (561), a water pump (563) connected between the fixed pipe (562) and the water tank (561) and a water pipe (564) connected between the fixed pipe (562) and the spray head (54).

5. A cleaning device for a steam turbine rotor according to claim 3, characterized in that The vertical sliding rail (57) is provided with a lifting mechanism (60) for driving the lifting block (58) to move.

6. A cleaning device for a steam turbine rotor according to claim 5, characterized in that The lifting mechanism (60) is a motor lead screw mechanism.

7. A cleaning device for a steam turbine rotor according to claim 4, characterized in that The base (10) is provided with a water collecting tank (70), and the water collecting tank (70) is connected with the water tank (561) through a water filtering device (80).

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