Cleaning apparatus for steam turbine wheel assemblies

Abstract

The utility model discloses a kind of cleaning equipment for steam turbine impeller assembly, comprising: water tank;First clamping assembly, second clamping assembly and first guide rail, first clamping assembly and second clamping assembly are used to clamp impeller assembly;Rinse component, rinse component is located in the side of first clamping assembly and second clamping assembly in second direction, rinse component includes mounting rod, multiple mounting sleeves, water inlet pipe and multiple water distribution pipes, mounting rod extends along first direction and is erected on water tank, water inlet pipe is bellows, water inlet pipe is communicated with water tank, water distribution pipe is connected on the outer peripheral wall of water inlet pipe, water distribution pipe is fixed on mounting sleeve, water distribution pipe is suitable for rinsing impeller assembly.According to the cleaning equipment for steam turbine impeller assembly of the utility model, the position of first clamping assembly, second clamping assembly and water distribution pipe on water tank can be adjusted according to the size of impeller assembly, so that the cleaning needs of more size models of impeller assembly can be met.

Description

Technical Field

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

[0002] In the thermal power generation industry, steam turbines, as core power equipment, directly impact power generation quality and energy utilization efficiency through their operational efficiency and stability. Steam turbine impeller assemblies operate in a complex environment characterized by high temperature, high pressure, and dust, oil, and other contaminants, making them highly susceptible to fouling and corrosion. These problems not only degrade the aerodynamic performance of the impeller assemblies and increase operating resistance but can also lead to increased vibration, reduced efficiency, and even threaten the safe and stable operation of the unit. Therefore, regular and efficient cleaning of the impeller assemblies is a crucial aspect of equipment maintenance in thermal power plants. However, current cleaning equipment is limited in its ability to accommodate a wide range of impeller assembly sizes. Utility Model Content

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention provides a cleaning device for steam turbine impeller assemblies, which is adaptable to a wider range of impeller assembly models.

[0004] The present invention discloses a cleaning device for a steam turbine impeller assembly, comprising: a water tank; a first clamping assembly, a second clamping assembly, and a first guide rail, wherein the first guide rail is disposed on the water tank and extends along a first direction, and the first clamping assembly and the second clamping assembly are movably supported on the first guide rail along the first direction, the first clamping assembly and the second clamping assembly being used to clamp the impeller assembly; and a flushing assembly disposed on one side of the first clamping assembly and the second clamping assembly in a second direction, the second direction being perpendicular to the first direction, the flushing assembly including a mounting rod, and multiple... A mounting sleeve, an inlet pipe, and multiple branch pipes are provided. The mounting rod extends along the first direction and is mounted on the water tank. The mounting sleeve is movably fitted onto the mounting rod along the first direction. The inlet pipe is a corrugated pipe that extends along the first direction and whose outer peripheral wall is connected to the mounting sleeve. The inlet pipe communicates with the water tank. The branch pipes are connected to the outer peripheral wall of the inlet pipe. Multiple branch pipes are arranged at intervals along the first direction. The mounting sleeve and the branch pipes correspond one-to-one. The branch pipe is connected to the corresponding mounting sleeve. The branch pipe is suitable for flushing the impeller assembly.

[0005] According to the present invention, the cleaning equipment for turbine impeller assemblies can, on the one hand, adjust the positions of the first clamping assembly and the second clamping assembly on the first guide rail according to the size of the impeller assembly, thereby meeting the clamping needs of impeller assemblies of different sizes. On the other hand, the installation sleeve can be moved according to the size of the impeller assembly so that the position of the water distribution pipe is opposite to the impeller assembly, and the water inlet pipe of the corrugated pipe can be compressed or stretched as the water distribution pipe moves to adapt to the position of the water distribution pipe. Thus, the cleaning needs of impeller assemblies of more sizes can be met.

[0006] According to some embodiments of the present invention, a first adjustment hole is formed on the outer peripheral wall of the mounting sleeve. The first adjustment hole is a threaded hole, and a first adjustment bolt is provided in the first adjustment hole. The first adjustment bolt is adapted to abut against the mounting rod.

[0007] According to some embodiments of this utility model, a nozzle is provided at one end of the water distribution pipe away from the water inlet pipe. The nozzle is rotatably connected to the mounting sleeve. The mounting sleeve is provided with a first clamping plate and a second clamping plate. The nozzle is disposed between the first clamping plate and the second clamping plate. A second adjustment hole and a third adjustment hole are respectively formed on the first clamping plate and the second clamping plate. The third adjustment hole is a threaded hole. The flushing assembly also includes a second adjustment bolt. The second adjustment bolt passes through the second adjustment hole and is threadedly connected to the third adjustment hole. The first clamping plate and the second clamping plate are adapted to clamp the nozzle.

[0008] According to some embodiments of the present invention, the cleaning device for turbine impeller assembly further includes: a first screw and a first motor. The first screw is rotatably mounted on the water tank. A first threaded segment and a second threaded segment are formed on the outer peripheral wall of the first screw. The first threaded segment and the second threaded segment are arranged sequentially in the first direction, and the first threaded segment and the second threaded segment have opposite directions of rotation. The first clamping assembly includes a first nut, which is sleeved on the first threaded segment. The second clamping assembly includes a second nut, which is sleeved on the second threaded segment. The first motor is adapted to drive the first screw to rotate.

[0009] According to some embodiments of the present invention, the first clamping assembly includes: a first disk, the first disk being movably supported on the first guide rail along the first direction, a first receiving cavity being formed in the first disk, and a plurality of first guide grooves communicating with the first receiving cavity being formed on the side of the first disk facing the second clamping assembly, the first guide grooves extending radially along the first disk, and the plurality of first guide grooves being spaced apart in the circumferential direction of the first disk; a plurality of first clamping blocks, the first clamping blocks corresponding one-to-one with the first guide grooves, one end of the first clamping block being movably disposed in the first guide groove along the radial direction of the first disk, and the other end of the first clamping block being used to clamp the impeller assembly; and a second motor, the second motor being disposed on the first disk, the second motor being adapted to drive the first clamping blocks to move radially in the first disk.

[0010] According to some embodiments of the present invention, a first rotating hole communicating with the first receiving cavity is formed on the side of the first disk away from the second clamping assembly. The first clamping assembly further includes: a first driving disk, which is rotatably disposed in the first receiving cavity and connected to the second motor through the first rotating hole. A spirally extending first driving groove is formed on the side of the first driving disk facing the first clamping block. An arc-shaped first rib is formed on the side of the first clamping block facing the first driving disk. The first rib is engaged in the first driving groove. The second motor is adapted to drive the first driving disk to rotate so that the inner wall of the first driving groove pushes the first clamping block to move radially in the first disk through the first rib.

[0011] According to some embodiments of the present invention, the first disk has a first tooth on its radial outer periphery, and the first clamping assembly further includes: a first base, the first base being movably supported on the first guide rail along the first direction, the first disk being rotatably disposed on the first base; a third motor and a first gear, the third motor being disposed on the first base, the motor shaft of the third motor extending along the axial direction of the first disk, the first gear being sleeved on the motor shaft of the third motor, and the first gear meshing with the first tooth.

[0012] According to some embodiments of the present invention, the second clamping assembly includes: a second disk, the second disk being movably supported on the first guide rail along the first direction, a second receiving cavity being formed in the second disk, and a plurality of second guide grooves communicating with the second receiving cavity being formed on the side of the second disk facing the first clamping assembly, the second guide grooves extending radially along the second disk, the plurality of second guide grooves being spaced apart in the circumferential direction of the second disk; a plurality of second clamping blocks, the second clamping blocks corresponding one-to-one with the second guide grooves, one end of the second clamping block being movably disposed in the second guide groove along the radial direction of the second disk, and the other end of the second clamping block being used to clamp the impeller assembly; and a fourth motor, the fourth motor being disposed on the second disk, the fourth motor being adapted to drive the second clamping blocks to move radially in the second disk.

[0013] According to some embodiments of the present invention, a second rotating hole communicating with the second receiving cavity is formed on the side of the second disk away from the first clamping assembly. The second clamping assembly further includes a second driving disk, which is rotatably disposed in the second receiving cavity and connected to the fourth motor through the second rotating hole. A spirally extending second driving groove is formed on the side of the second driving disk facing the second clamping block. An arc-shaped second rib is formed on the side of the second clamping block facing the second driving disk. The second rib is engaged in the second driving groove. The fourth motor is adapted to drive the second driving disk to rotate so that the inner wall of the second driving groove pushes the second clamping block to move radially in the second disk through the second rib.

[0014] According to some embodiments of the present invention, the second disk is provided with a second tooth on its radial outer periphery, and the second clamping assembly further includes: a second base, the second base being movably supported on the first guide rail along the first direction, and the second disk being rotatably disposed on the second base; a fifth motor and a second gear, the fifth motor being disposed on the second base, the motor shaft of the fifth motor extending along the axial direction of the second disk, and the second gear being sleeved on the motor shaft of the fifth motor, and the second gear meshing with the second tooth.

[0015] According to some embodiments of this utility model, the cleaning device for turbine impeller assembly further includes: a second guide rail, which is disposed on the water tank and extends along the first direction; two second guide rails are respectively disposed on both sides of the first clamping assembly and the second clamping assembly in the second direction; a water-blocking assembly, which includes a cover plate and a plurality of guide blocks; the cover plate includes a first plate segment, a second plate segment, and a third plate segment, which all extend along the first direction; the second plate segment is a horizontal plate; the second plate segment and the third plate segment are both vertical plates; and the upper ends of the second plate segment and the third plate segment are respectively connected to the two side edges of the first plate segment in the second direction; the cover plate is foldable in the first direction; a plurality of guide blocks are provided on both second guide rails; the guide blocks are movable along the first direction on the second guide rails; and the lower ends of the second plate segment and the third plate segment are respectively connected to the guide blocks on the two second guide rails, so that the cover plate is mounted on the outside of the first clamping assembly and the second clamping assembly.

[0016] According to some embodiments of the present invention, the water-blocking assembly further includes: a throttle, a second screw, and a third nut. The throttle is rotatably mounted on the water tank. The second screw extends along the first direction and is rotatably mounted on the second guide rail. The guide block is movably sleeved on the second screw along the first direction. The third nut is sleeved on the second screw and is connected to the outermost guide block on one side of the second guide rail in the first direction. The throttle is rotatably connected to the second screw.

[0017] According to some embodiments of the present invention, the water tank is further provided with water receiving plates on both side walls in the second direction. The water receiving plates and the side walls of the water tank cooperate to define a water receiving cavity, which is in communication with the water tank.

[0018] According to some embodiments of the present invention, the cleaning equipment for turbine impeller assembly further includes: a support assembly, which is disposed on the water tank and located between the first clamping assembly and the second clamping assembly. The support assembly includes a base, a hydraulic jack, and a support seat. The base is disposed on the water tank, the hydraulic jack is disposed on the base, and the support seat is disposed on the hydraulic jack. The support seat is used to support the impeller assembly.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a cleaning device for a steam turbine impeller assembly according to an embodiment of the present utility model; Figure 2 yes Figure 1 The schematic diagram shown is of a cleaning device for a steam turbine impeller assembly, excluding the cover plate and guide block. Figure 3 yes Figure 2 The schematic diagram shown is of a cleaning device for a steam turbine impeller assembly excluding the first clamping assembly and the second clamping assembly. Figure 4 yes Figure 3 A schematic diagram of the flushing assembly shown; Figure 5 This is a schematic diagram of the first screw, the first motor, the first nut, and the second nut according to an embodiment of the present utility model; Figure 6 yes Figure 2 An exploded view of the first clamping assembly shown in the figure; Figure 7 yes Figure 6 A cross-sectional view of a portion of the structure shown; Figure 8 yes Figure 1 A schematic diagram of the water-blocking assembly shown; Figure 9 yes Figure 3 A schematic diagram of the support component shown.

[0021] Figure label: 100. Cleaning equipment for steam turbine impeller assemblies; 10. Water tank; 11. Water receiving plate; 20. First clamping assembly; 21. First nut; 22. First disc; 221. First guide groove; 222. First tooth; 23. First clamping block; 231. First sliding part; 232. First clamping part; 24. Second motor; 25. First drive disc; 251. First drive groove; 26. First base; 261. First mounting cavity; 262. First retaining ring; 27. Third motor; 28. First gear; 30. Second clamping assembly; 31. Second nut; 40. First guide rail; 41. First screw; 411. First threaded section; 412. Second threaded section; 42. First motor; 50. Flushing assembly; 51. Mounting rod; 52. Mounting sleeve; 53. Inlet pipe; 54. Sprayer head; 60. Second guide rail; 70. Water-blocking assembly; 71. Cover plate; 72. Guide block; 73. Second screw; 74. Third nut; 75. Throttle; 80. Supporting component; 81. Base; 82. Hydraulic jack; 83. Support seat; 90. Control Panel; 200. Impeller assembly. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0023] The following is for reference. Figures 1-9 This invention describes a cleaning device 100 for a steam turbine impeller assembly according to an embodiment of the present invention.

[0024] like Figures 1-4 As shown, the cleaning device 100 for turbine impeller assembly according to an embodiment of the present invention includes: a water tank 10, a first clamping assembly 20, a second clamping assembly 30, a first guide rail 40, and a rinsing assembly 50.

[0025] Specifically, the first guide rail 40 is disposed on the water tank 10 and extends along the first direction. The first clamping assembly 20 and the second clamping assembly 30 are both movably supported on the first guide rail 40 along the first direction. The first clamping assembly 20 and the second clamping assembly 30 are used to clamp the impeller assembly 200. The flushing assembly 50 is disposed on one side of the first clamping assembly 20 and the second clamping assembly 30 in a second direction, which is perpendicular to the first direction. The flushing assembly 50 includes a mounting rod 51, multiple mounting sleeves 52, a water inlet pipe 53, and multiple water distribution pipes. Mounting rod 51 extends along a first direction and is mounted on water tank 10. Mounting sleeve 52 is movably fitted onto mounting rod 51 along the first direction. Inlet pipe 53 is a corrugated pipe that extends along the first direction and whose outer peripheral wall is connected to mounting sleeve 52. Inlet pipe 53 is connected to water tank 10. Distributor pipes are connected to the outer peripheral wall of inlet pipe 53. Multiple distributor pipes are arranged at intervals along the first direction. Mounting sleeve 52 and distributor pipes correspond one-to-one. Distributor pipes are connected to their corresponding mounting sleeves 52. Distributor pipes are suitable for flushing impeller assembly 200. For example, there can be two, three, eight, or ten distributor pipes.

[0026] When cleaning the impeller assembly 200, the first clamping assembly 20 and the second clamping assembly 30 are moved on the first guide rail 40, so that both ends of the impeller assembly 200 are clamped on the first clamping assembly 20 and the second clamping assembly 30 respectively. Then, the mounting sleeve 52 is moved on the mounting rod 51. The mounting sleeve 52 drives the water distribution pipe to move to a position opposite to the impeller assembly 200. At the same time, since the water inlet pipe 53 is a corrugated pipe, the water inlet pipe 53 will be compressed or stretched synchronously during the movement of the mounting sleeve 52, so that the position of the water inlet pipe 53 corresponds to that of the water distribution pipe. For example, when the size of the impeller assembly 200 is long, the distance between the water distribution pipes becomes larger, and the mounting sleeve 52 drives the water inlet pipe 53 to stretch. When the size of the impeller assembly 200 is short, the distance between the water distribution pipes becomes smaller, and the mounting sleeve 52 drives the water inlet pipe 53 to compress. Then, the water in the water tank 10 is sprayed onto the impeller assembly 200 through the water inlet pipe 53 and the water distribution pipe to clean the impeller assembly 200.

[0027] According to the present invention, the cleaning device 100 for turbine impeller assembly can, on the one hand, adjust the positions of the first clamping component 20 and the second clamping component 30 on the first guide rail 40 according to the size of the impeller assembly 200, thereby meeting the clamping needs of impeller assemblies 200 of different sizes. On the other hand, the sleeve 52 can be moved according to the size of the impeller assembly 200 so that the position of the water distribution pipe is opposite to the impeller assembly 200, and the water inlet pipe 53 of the corrugated pipe can be compressed or stretched as the water distribution pipe moves to adapt to the position of the water distribution pipe. Thus, the cleaning needs of impeller assemblies 200 of more sizes can be met.

[0028] In some embodiments of this utility model, a first adjustment hole is formed on the outer peripheral wall of the mounting sleeve 52. The first adjustment hole is a threaded hole, and a first adjustment bolt is provided in the first adjustment hole. The first adjustment bolt is adapted to abut against the mounting rod 51.

[0029] During the cleaning of the impeller assembly 200, when the position of the water distribution pipe needs to be adjusted, loosen the first adjusting bolt in the first adjusting hole to release the contact between the first adjusting bolt and the mounting rod 51. Then, the mounting sleeve 52 can be moved to adjust the position of the water distribution pipe. After the water distribution pipe is in place, tighten the first adjusting bolt to make it abut against the mounting rod 51, thus fixing the mounting sleeve 52 on the mounting rod 51. This allows for locking and unlocking of the mounting sleeve 52 on the mounting rod 51, and the locking structure is relatively simple, with easy operation during locking and unlocking.

[0030] In some embodiments of this utility model, such as Figure 4As shown, a nozzle 54 is provided at the end of the water distribution pipe away from the water inlet pipe 53. The nozzle 54 is rotatably connected to the mounting sleeve 52. The mounting sleeve 52 is provided with a first clamping plate and a second clamping plate. The nozzle 54 is located between the first clamping plate and the second clamping plate. A second adjustment hole and a third adjustment hole are respectively formed on the first clamping plate and the second clamping plate. The third adjustment hole is a threaded hole. The flushing assembly 50 also includes a second adjustment bolt. The second adjustment bolt passes through the second adjustment hole and is threadedly connected to the third adjustment hole. The first clamping plate and the second clamping plate are adapted to clamp the nozzle 54.

[0031] During the cleaning of the impeller assembly 200, when it is necessary to adjust the spray angle of the nozzle 54, loosen the second adjusting bolt in the third adjusting hole to release the clamping of the first and second clamping plates on the nozzle 54. Then rotate the nozzle 54 to the specified angle, and then tighten the second adjusting bolt to clamp the nozzle 54 with the first and second clamping plates, so that the nozzle 54 is fixed on the mounting sleeve 52. In this way, the nozzle 54 can be locked and unlocked on the mounting sleeve 52, and the locking structure is relatively simple, and the operation during the locking and unlocking process is also relatively simple.

[0032] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the cleaning device 100 for turbine impeller assembly further includes: a first screw 41 and a first motor 42. The first screw 41 is rotatably mounted on the water tank 10. A first threaded section 411 and a second threaded section 412 are formed on the outer peripheral wall of the first screw 41. The first threaded section 411 and the second threaded section 412 are arranged sequentially in a first direction, and the first threaded section 411 and the second threaded section 412 have opposite directions of rotation. A first clamping assembly 20 includes a first nut 21, which is sleeved on the first threaded section 411. A second clamping assembly 30 includes a second nut 31, which is sleeved on the second threaded section 412. The first motor 42 is adapted to drive the first screw 41 to rotate.

[0033] There are two first screws 41, which are spaced apart in the second direction. There are also two first nuts 21 and two second nuts 31. The two first nuts 21 are respectively fitted onto the first threaded sections 411 of the two first screws 41, and the two second nuts 31 are respectively fitted onto the second threaded sections 412 of the two second screws 43. A first transmission wheel is fitted on the motor shaft of the first motor 42, and the first transmission wheel is connected to the two first screws 41 through two transmission belts.

[0034] During the cleaning process of the impeller assembly 200, the first motor 42 drives the first screw 41 to rotate. Since the first threaded section 411 and the second threaded section 412 have opposite directions of rotation, the first screw 41 will drive the first nut 21 and the second nut 31 to move synchronously relative to each other or in opposite directions in the first direction. In this way, the first nut 21 and the second nut 31 can drive the first clamping assembly 20 and the second clamping assembly 30 to move relative to each other or in opposite directions in the first direction. Thus, the distance between the first clamping assembly 20 and the second clamping assembly 30 can be adjusted, and the driving structure is relatively simple.

[0035] In some embodiments of this utility model, such as Figure 6 and Figure 7 As shown, the first clamping assembly 20 includes: a first disk 22, a plurality of first clamping blocks 23 and a second motor 24.

[0036] Specifically, a first disk 22 is movably supported on a first guide rail 40 along a first direction. A first receiving cavity is formed inside the first disk 22. A plurality of first guide grooves 221 communicating with the first receiving cavity are formed on the side of the first disk 22 facing the second clamping assembly 30. The first guide grooves 221 extend radially along the first disk 22. The plurality of first guide grooves 221 are arranged at intervals in the circumferential direction of the first disk 22. A first clamping block 23 corresponds one-to-one with the first guide groove 221. One end of the first clamping block 23 is movably disposed in the first guide groove 221 along the radial direction of the first disk 22. The other end of the first clamping block 23 is used to clamp the impeller assembly 200. A second motor 24 is disposed on the first disk 22. The second motor 24 is adapted to drive the first clamping block 23 to move radially in the first disk 22. For example, there can be three, four, five or six first clamping blocks 23.

[0037] The first clamping block 23 includes a first sliding part 231 and a first clamping part 232. The first sliding part 231 is disposed in the first guide groove 221, and the first clamping part 232 is L-shaped and one end is connected to the first sliding part 231. The first clamping part 232 is used to clamp the impeller assembly 200. The second motor 24 is equipped with a torque sensor.

[0038] During the cleaning process of the impeller assembly 200, one end of the impeller assembly 200 is placed between multiple first clamping blocks 23. The second motor 24 drives the multiple first clamping blocks 23 to move radially inward to clamp the impeller assembly 200. During the process of the second motor 24 driving the first clamping blocks 23 to clamp the impeller assembly 200, a torque sensor detects the torque on the motor shaft of the second motor 24. When the torque on the motor shaft of the second motor 24 reaches a set value, it is determined that the first clamping blocks 23 have clamped the impeller assembly 200. Then, the motor shaft of the second motor 24 remains fixed, thereby keeping the first clamping blocks 23 fixed.

[0039] When it is necessary to release the clamping of the impeller assembly 200, the second motor 24 drives the first clamping block 23 to move radially outward to release the clamping of the impeller assembly 200.

[0040] Thus, the first clamping component 20 can automatically clamp and release the impeller component 200, and the second motor 24 has a fast response speed and is easy to arrange.

[0041] In some embodiments of this utility model, such as Figure 6 and Figure 7 As shown, the first disk 22 has a first rotating hole communicating with the first receiving cavity on the side away from the second clamping assembly 30. The first clamping assembly 20 also includes a first driving disk 25, which is rotatably disposed in the first receiving cavity and connected to the second motor 24 through the first rotating hole. The first driving disk 25 has a spirally extending first driving groove 251 on the side facing the first clamping block 23. The first clamping block 23 has an arc-shaped first rib on the side facing the first driving disk 25. The first rib fits in the first driving groove 251. The second motor 24 is adapted to drive the first driving disk 25 to rotate so that the inner wall of the first driving groove 251 pushes the first clamping block 23 to move radially in the first disk 22 through the first rib.

[0042] During the clamping process of the first clamping assembly 200, the impeller assembly 200 is first placed between multiple first clamping blocks 23. Then, the second motor 24 drives the first drive disk 25 to rotate. The rotation of the first drive groove 251 causes the position of the first protrusion to change within the first drive groove 251. At the same time, the first protrusion drives the first clamping block 23 to move radially inward along the first disk 22 in the first guide groove 221 until the first clamping block 23 clamps the impeller assembly 200. When it is necessary to release the clamping of the impeller assembly 200, the second motor 24 rotates in the opposite direction to the above rotation direction. The first drive groove 251 can push the first protrusion to move radially outward along the first disk 22. Thus, the second motor 24 can drive the first clamping block 23.

[0043] The first protrusions on the multiple first clamping blocks 23 respectively cooperate in the first drive groove 251. During the rotation of the first drive disk 25, the multiple first clamping blocks 23 can be driven to move inward or outward synchronously, thereby ensuring the clamping effect on the impeller assembly 200. The cooperation structure between the first drive disk 25 and the first clamping blocks 23 is relatively simple.

[0044] In some embodiments of this utility model, such as Figure 6 and Figure 7As shown, the first disk 22 has a first tooth 222 on its radial outer periphery, and the first clamping assembly 20 also includes a first base 26, a third motor 27 and a first gear 28.

[0045] Specifically, the first base 26 is movably supported on the first guide rail 40 along the first direction, the first disk 22 is rotatably disposed on the first base 26, the third motor 27 is disposed on the first base 26, the motor shaft of the third motor 27 extends along the axial direction of the first disk 22, the first gear 28 is sleeved on the motor shaft of the third motor 27, and the first gear 28 meshes with the first tooth 222.

[0046] The first base 26 has a first mounting cavity 261 and a second mounting cavity that are connected. The first mounting cavity 261 is open in a first direction toward the side facing the second clamping assembly 30. The first disk 22 is rotatably disposed in the first mounting cavity 261. The third motor 27 and the first gear 28 are disposed in the second mounting cavity. The first fixing ring 262 covers the opening of the first mounting cavity 261 to prevent the first disk 22 from falling out of the first mounting cavity 261.

[0047] In other words, the first disc 22 is movably supported on the first guide rail 40 along the first direction via the first base 26. During the cleaning process of the impeller assembly 200, the third motor 27 drives the first gear 28 to rotate. The first gear 28 drives the first disc 22 to rotate via the first teeth 222. In this way, the impeller assembly 200 clamped between the first disc 22 and the second disc can be rotated. As a result, the nozzle 54 can rinse different positions of the impeller assembly 200 in the circumferential direction, thereby improving the cleaning effect of the impeller assembly 200.

[0048] In some embodiments of this invention, the second clamping assembly 30 includes: a second disk, a plurality of second clamping blocks, and a fourth motor. For example, there may be three, four, five, or six second clamping blocks.

[0049] Specifically, the second disk is movably supported on the first guide rail 40 along the first direction. A second receiving cavity is formed inside the second disk. A plurality of second guide grooves communicating with the second receiving cavity are formed on the side of the second disk facing the first clamping assembly 20. The second guide grooves extend radially along the second disk. The plurality of second guide grooves are arranged at intervals in the circumferential direction of the second disk. The second clamping block corresponds to the second guide groove one by one. One end of the second clamping block is movably disposed in the second guide groove along the radial direction of the second disk. The other end of the second clamping block is used to clamp the impeller assembly 200. A fourth motor is disposed on the second disk. The fourth motor is adapted to drive the second clamping block to move radially in the second disk.

[0050] The second clamping block includes a second sliding part and a second clamping part. The second sliding part is disposed in the second guide groove, and the second clamping part is L-shaped with one end connected to the second sliding part. The second clamping part is used to clamp the impeller assembly 200. A torque sensor is provided inside the fourth motor.

[0051] During the cleaning process of the impeller assembly 200, one end of the impeller assembly 200 is placed between multiple second clamping blocks. A fourth motor drives the multiple second clamping blocks to move radially inward to clamp the impeller assembly 200. During the process of the fourth motor driving the second clamping blocks to clamp the impeller assembly 200, a torque sensor detects the torque on the motor shaft of the fourth motor. When the torque on the motor shaft of the fourth motor reaches a set value, it is determined that the second clamping blocks have clamped the impeller assembly 200. Then, the motor shaft of the fourth motor remains fixed, thereby keeping the second clamping blocks fixed.

[0052] When it is necessary to release the clamping of the impeller assembly 200, the fourth motor drives the second clamping block to move radially outward to release the clamping of the impeller assembly 200.

[0053] Therefore, the second clamping assembly 30 can automatically clamp and release the impeller assembly 200, and the fourth motor has a fast response speed and is easy to arrange.

[0054] In some embodiments of this utility model, a second rotating hole communicating with the second receiving cavity is formed on the side of the second disk away from the first clamping assembly 20. The second clamping assembly 30 further includes a second driving disk, which is rotatably disposed in the second receiving cavity and connected to a fourth motor through the second rotating hole. A spirally extending second driving groove is formed on the side of the second driving disk facing the second clamping block, and an arc-shaped second protrusion is formed on the side of the second clamping block facing the second driving disk. The second protrusion is fitted into the second driving groove. The fourth motor is adapted to drive the second driving disk to rotate so that the inner wall of the second driving groove pushes the second clamping block to move radially on the second disk through the second protrusion.

[0055] During the clamping process of the second clamping assembly 30 on the impeller assembly 200, the impeller assembly 200 is first placed between multiple second clamping blocks. Then, the fourth motor drives the second drive disk to rotate. The rotation of the second drive groove causes the position of the second protrusion in the second drive groove to change. At the same time, the second protrusion drives the second clamping block to move radially inward along the second disk in the second guide groove until the second clamping block clamps the impeller assembly 200. When it is necessary to release the clamping of the impeller assembly 200, the fourth motor rotates in the opposite direction to the above rotation direction. The second drive groove can push the second protrusion to move radially outward along the second disk. Thus, the fourth motor can drive the second clamping block.

[0056] The second protrusions on the multiple second clamping blocks are respectively engaged in the second drive groove. During the rotation of the second drive disk, the multiple second clamping blocks can be driven to move inward or outward synchronously, thereby ensuring the clamping effect on the impeller assembly 200. Furthermore, the cooperation structure between the second drive disk and the second clamping blocks is relatively simple.

[0057] In some embodiments of this utility model, the second disk is provided with second teeth on its radial outer periphery, and the second clamping assembly 30 further includes: a second base, a fifth motor, and a second gear.

[0058] Specifically, the second base is movably supported on the first guide rail 40 along the first direction, the second disk is rotatably disposed on the second base, the fifth motor is disposed on the second base, the motor shaft of the fifth motor extends along the axial direction of the second disk, the second gear is sleeved on the motor shaft of the fifth motor, and the second gear meshes with the second teeth.

[0059] The second base has a third mounting cavity and a fourth mounting cavity that are connected. The third mounting cavity is open in the first direction toward the side facing the first clamping assembly 20. The second disk is rotatably disposed in the third mounting cavity. The fifth motor and the second gear are disposed in the fourth mounting cavity. The second fixing ring is disposed in the opening of the second mounting cavity to prevent the second disk from coming out of the third mounting cavity.

[0060] In other words, the second disc is movably supported on the first guide rail 40 along the first direction via the second base. During the cleaning process of the impeller assembly 200, the fifth motor drives the second gear to rotate, and the second gear drives the second disc to rotate via the second teeth. In this way, the impeller assembly 200 clamped between the first disc 22 and the second disc can be rotated. As a result, the nozzle 54 can rinse different positions of the impeller assembly 200 in the circumferential direction, thereby improving the cleaning effect of the impeller assembly 200.

[0061] In some embodiments of this utility model, such as Figure 1 and Figure 8 As shown, the cleaning device 100 for turbine impeller assembly also includes a second guide rail 60 and a water baffle assembly 70.

[0062] Specifically, the second guide rail 60 is disposed on the water tank 10 and extends along the first direction. There are two second guide rails 60, which are respectively disposed on both sides of the first clamping assembly 20 and the second clamping assembly 30 in the second direction. The water-blocking assembly 70 includes a cover plate 71 and multiple guide blocks 72. The cover plate 71 includes a first plate segment, a second plate segment, and a third plate segment. The first plate segment, the second plate segment, and the third plate segment all extend along the first direction. The second plate segment is a horizontal plate, and the second plate segment and the third plate segment are both vertical plates. The upper ends of the second plate segment and the upper ends of the third plate segment are respectively connected to the two side edges of the first plate segment in the second direction. The cover plate 71 is foldable in the first direction. Multiple guide blocks 72 are provided on both second guide rails 60. The guide blocks 72 are movable on the second guide rails 60 in the first direction. The lower ends of the second plate segment and the lower ends of the third plate segment are respectively connected to the guide blocks 72 on the two second guide rails 60, so that the cover plate 71 is mounted on the outside of the first clamping assembly 20 and the second clamping assembly 30.

[0063] During the cleaning process of the impeller assembly 200, the cover plate 71 can block the rinsing water flow. The cover plate 71 is foldable in a first direction, and the guide block 72 is movable in the first direction. The guide block 72 can be pushed to move along the second guide rail 60 in the first direction, thereby compressing or stretching the cover plate 71 so that the cover plate 71 can be adapted to impeller assemblies 200 of different sizes.

[0064] In some embodiments of this utility model, such as Figure 1 and Figure 8 As shown, the water-blocking assembly 70 also includes: a throttle 75, a second screw 73, and a third nut 74. The throttle 75 is rotatably mounted on the water tank 10. The second screw 73 extends along a first direction and is rotatably mounted on a second guide rail 60. A guide block 72 is movably mounted on the second screw 73 along the first direction. The third nut 74 is mounted on the second screw 73 and is connected to the outermost guide block 72 on one side of the second guide rail 60 in the first direction. The throttle 75 is rotatably connected to the second screw 73.

[0065] There are two third screws, each mounted on one of the two second guide rails 60. There are also two third nuts 74, each corresponding to a guide block 72 on one of the second guide rails 60. A second transmission wheel is mounted on the throttle 75, and this second transmission wheel is connected to the two third screws via two transmission belts.

[0066] When the size of the cover plate 71 needs to be adjusted, the handle 75 is turned, which drives the second transmission wheel to rotate. The second transmission wheel drives the two third screws to rotate through two transmission belts. The third screws push the third nut 74 to move in the first direction, thereby causing the cover plate 71 to be compressed or stretched in the first direction. Thus, the size of the cover plate 71 can be automatically adjusted, and the drive structure is relatively simple.

[0067] In some embodiments of this utility model, such as Figures 1-3 As shown, the water tank 10 is also provided with water receiving plates 11 on both sides of the second direction. The water receiving plates 11 and the side walls of the water tank 10 cooperate to define a water receiving cavity, which is connected to the water tank 10.

[0068] By setting up a water receiving plate 11, water can be collected during the cleaning of the impeller assembly 200. The collected water can then be reused in the water tank 10, thereby saving water during the cleaning process.

[0069] In some embodiments of this utility model, such as Figure 3 and Figure 9 As shown, the cleaning equipment 100 for turbine impeller assembly further includes: a support assembly 80, which is disposed on the water tank 10 and located between the first clamping assembly 20 and the second clamping assembly 30. The support assembly 80 includes a base 81, a hydraulic push rod 82 and a support seat 83. The base 81 is disposed on the water tank 10, the hydraulic push rod 82 is disposed on the base 81, and the support seat 83 is disposed on the hydraulic push rod 82. The support seat 83 is used to support the impeller assembly 200.

[0070] When installing the impeller assembly 200, the impeller assembly 200 is placed on the support base 83. Then, the height of the support base 83 is adjusted by the hydraulic push rod 82 to adapt the impeller assembly 200 to the first clamping assembly 20 and the second clamping assembly 30. This facilitates the clamping of the impeller assembly 200 by the first clamping assembly 20 and the second clamping assembly 30. The hydraulic push rod 82 is connected to a suitable hydraulic cylinder, which drives the hydraulic push rod 82 to extend or retract. Anti-slip strips are installed on the support base 83.

[0071] In some embodiments of this utility model, such as Figures 1-3 As shown, a control panel 90 is also provided on the side wall of the water tank 10. The control panel 90 is electrically connected to the equipment on the cleaning equipment 100 for the turbine impeller assembly. In this way, the user can perform cleaning operations on the cleaning equipment 100 for the turbine impeller assembly through the control panel 90.

[0072] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0074] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning device for steam turbine impeller assemblies, characterized in that, include: Water tank; A first clamping assembly, a second clamping assembly, and a first guide rail, wherein the first guide rail is disposed on the water tank and extends along a first direction, and the first clamping assembly and the second clamping assembly are both movably supported on the first guide rail along the first direction, and the first clamping assembly and the second clamping assembly are used to clamp the impeller assembly; A flushing assembly is disposed on one side of the first clamping assembly and the second clamping assembly in a second direction perpendicular to the first direction. The flushing assembly includes a mounting rod, multiple mounting sleeves, a water inlet pipe, and multiple water distribution pipes. The mounting rod extends along the first direction and is mounted on the water tank. The mounting sleeves are movably fitted onto the mounting rod along the first direction. The inlet pipe is a corrugated pipe, which extends along the first direction and its outer peripheral wall is connected to the mounting sleeve. The inlet pipe is connected to the water tank. The water distribution pipe is connected to the outer peripheral wall of the inlet pipe. Multiple water distribution pipes are arranged at intervals in the first direction. The mounting sleeve and the water distribution pipe correspond one-to-one. The water distribution pipe is connected to the corresponding mounting sleeve. The water distribution pipe is suitable for flushing the impeller assembly.

2. The cleaning equipment for turbine impeller assemblies according to claim 1, characterized in that, A first adjustment hole is formed on the outer peripheral wall of the mounting sleeve. The first adjustment hole is a threaded hole, and a first adjustment bolt is provided in the first adjustment hole. The first adjustment bolt is adapted to abut against the mounting rod.

3. The cleaning equipment for turbine impeller assemblies according to claim 1, characterized in that, A nozzle is provided at the end of the water distribution pipe away from the water inlet pipe. The nozzle is rotatably connected to the mounting sleeve. The mounting sleeve is provided with a first clamping plate and a second clamping plate. The nozzle is located between the first clamping plate and the second clamping plate. A second adjustment hole and a third adjustment hole are respectively formed on the first clamping plate and the second clamping plate. The third adjustment hole is a threaded hole. The flushing assembly also includes a second adjustment bolt. The second adjustment bolt passes through the second adjustment hole and is threadedly connected to the third adjustment hole. The first clamping plate and the second clamping plate are adapted to clamp the nozzle.

4. The cleaning equipment for turbine impeller assemblies according to claim 1, characterized in that, Also includes: A first screw and a first motor are present. The first screw is rotatably mounted on the water tank. A first threaded segment and a second threaded segment are formed on the outer peripheral wall of the first screw. The first threaded segment and the second threaded segment are arranged sequentially in the first direction and have opposite directions of rotation. The first clamping assembly includes a first nut, which is sleeved on the first threaded segment. The second clamping assembly includes a second nut, which is sleeved on the second threaded segment. The first motor is adapted to drive the first screw to rotate.

5. The cleaning equipment for turbine impeller assemblies according to claim 1, characterized in that, The first clamping component includes: A first disk is movably supported on a first guide rail along the first direction. A first receiving cavity is formed inside the first disk. A plurality of first guide grooves communicating with the first receiving cavity are formed on the side of the first disk facing the second clamping assembly. The first guide grooves extend radially along the first disk. The plurality of first guide grooves are arranged at intervals in the circumferential direction of the first disk. Multiple first clamping blocks, each first clamping block corresponding to a first guide groove, one end of each first clamping block being movably disposed in the first guide groove along the radial direction of the first disk, and the other end of each first clamping block being used to clamp the impeller assembly; A second motor is mounted on the first disk and is adapted to drive the first clamping block to move radially on the first disk.

6. The cleaning equipment for turbine impeller assemblies according to claim 5, characterized in that, The first disk has a first rotating hole on the side away from the second clamping assembly that communicates with the first receiving cavity. The first clamping assembly further includes a first driving disk, which is rotatably disposed in the first receiving cavity and connected to the second motor through the first rotating hole. The first driving disk has a spirally extending first driving groove on the side facing the first clamping block, and the first clamping block has an arc-shaped first rib on the side facing the first driving disk. The first rib fits into the first driving groove. The second motor is adapted to drive the first driving disk to rotate so that the inner wall of the first driving groove pushes the first clamping block to move radially in the first disk through the first rib.

7. The cleaning equipment for turbine impeller assemblies according to claim 5, characterized in that, The first disk has first teeth on its radial outer periphery, and the first clamping assembly further includes: A first base, which is movably supported on a first guide rail along a first direction, and a first disk rotatably disposed on the first base; A third motor and a first gear, wherein the third motor is mounted on the first base, the motor shaft of the third motor extends axially along the first disk, and the first gear is sleeved on the motor shaft of the third motor and meshes with the first gear teeth.

8. The cleaning equipment for turbine impeller assemblies according to claim 1, characterized in that, The second clamping assembly includes: The second disk is movably supported on the first guide rail along the first direction. A second receiving cavity is formed inside the second disk. A plurality of second guide grooves communicating with the second receiving cavity are formed on the side of the second disk facing the first clamping assembly. The second guide grooves extend radially along the second disk. The plurality of second guide grooves are spaced apart in the circumferential direction of the second disk. Multiple second clamping blocks, each corresponding to a second guide groove, with one end of each second clamping block movably disposed in the second guide groove along the radial direction of the second disk, and the other end of each second clamping block used to clamp the impeller assembly; A fourth motor is provided on the second disk, and the fourth motor is adapted to drive the second clamping block to move radially in the second disk.

9. The cleaning equipment for turbine impeller assemblies according to claim 8, characterized in that, The second disk has a second rotating hole on the side away from the first clamping assembly that communicates with the second receiving cavity. The second clamping assembly further includes a second driving disk, which is rotatably disposed in the second receiving cavity and connected to the fourth motor through the second rotating hole. The second driving disk has a spirally extending second driving groove on the side facing the second clamping block, and the second clamping block has an arc-shaped second rib on the side facing the second driving disk. The second rib is engaged in the second driving groove. The fourth motor is adapted to drive the second driving disk to rotate so that the inner wall of the second driving groove pushes the second clamping block to move radially in the second disk through the second rib.

10. The cleaning equipment for turbine impeller assemblies according to claim 8, characterized in that, The second disk has a second tooth on its radial outer periphery, and the second clamping assembly further includes: The second base is movably supported on the first guide rail along the first direction, and the second disk is rotatably disposed on the second base; A fifth motor and a second gear are provided. The fifth motor is mounted on the second base, and the motor shaft of the fifth motor extends axially along the second disk. The second gear is sleeved on the motor shaft of the fifth motor and meshes with the second gear teeth.

11. The cleaning equipment for turbine impeller assemblies according to claim 1, characterized in that, Also includes: The second guide rail is disposed on the water tank and extends along the first direction. There are two second guide rails, which are respectively disposed on both sides of the first clamping assembly and the second clamping assembly in the second direction. A water-blocking assembly includes a cover plate and multiple guide blocks. The cover plate includes a first plate segment, a second plate segment, and a third plate segment, all of which extend along a first direction. The second plate segment is a horizontal plate, while the second and third plate segments are vertical plates. The upper ends of the second and third plate segments are respectively connected to the two side edges of the first plate segment along the second direction. The cover plate is foldable along the first direction. Each of the two second guide rails is provided with a plurality of guide blocks, which are movable along the first direction on the second guide rails. The lower ends of the second plate segment and the lower ends of the third plate segment are respectively connected to the guide blocks on the two second guide rails, so that the cover plate is mounted on the outside of the first clamping assembly and the second clamping assembly.

12. The cleaning equipment for turbine impeller assemblies according to claim 11, characterized in that, The water-blocking assembly further includes: a throttle, a second screw, and a third nut. The throttle is rotatably mounted on the water tank. The second screw extends along the first direction and is rotatably mounted on the second guide rail. The guide block is movably sleeved on the second screw along the first direction. The third nut is sleeved on the second screw and is connected to the outermost guide block on one side of the second guide rail in the first direction. The throttle is rotatably connected to the second screw.

13. The cleaning equipment for turbine impeller assemblies according to claim 11, characterized in that, The water tank is further provided with water receiving plates on both side walls in the second direction. The water receiving plates and the side walls of the water tank cooperate to define a water receiving cavity, which is connected to the water tank.

14. The cleaning equipment for turbine impeller assemblies according to claim 1, characterized in that, Also includes: A support assembly is disposed on the water tank and located between the first clamping assembly and the second clamping assembly. The support assembly includes a base, a hydraulic push rod, and a support seat. The base is disposed on the water tank, the hydraulic push rod is disposed on the base, and the support seat is disposed on the hydraulic push rod. The support seat is used to support the impeller assembly.

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