Peristaltic water turbine narrow gap cleaning device and cleaning method thereof

Abstract

The peristaltic water turbine narrow gap cleaning device comprises air bag units, a framework, a cleaning unit and an air supply control unit, the two air bag units are located on the two sides of the framework correspondingly, one end of each air bag unit is fixedly connected with the framework, and the other end of each air bag unit is slidably connected with the framework in a guiding mode; the cleaning unit and the air supply control unit are installed on the framework, the cleaning unit is used for cleaning the water turbine, and the air supply control unit is used for conducting air supply control on the air bag unit, so that the air bag unit expands and stretches out and draws back, and the framework is loaded to walk in a peristaltic mode. When the air bag unit expands, the cleaning device can be clamped in the gap between the water turbine stator and the water turbine rotor, when one end of the air bag unit exhausts air, the air bag unit contracts, and therefore the cleaning device can walk in the gap. By means of the cleaning device, the cleaning efficiency of the gap between the stator and the rotor of the large hydro-generator is greatly improved, and the cleaning effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of generator set maintenance equipment, in particular to a peristaltic turbine narrow gap cleaning device and a cleaning method thereof. Background Art

[0002] As an important hydroelectric power generation equipment, the turbine plays a key role in the energy field. However, during the long-term operation of the turbine, the narrow space inside it is easy to accumulate dirt, impurities and sediments. Traditional cleaning methods often have many limitations. For example, manual cleaning is inefficient, and it is difficult to effectively reach some narrow and complex spaces, and may also face high safety risks. Using conventional cleaning tools and methods, it may not be possible to completely clean the attachments in the narrow space, resulting in a gradual decline in the performance of the turbine, reduced efficiency, and even possible failures. In this context, there is an urgent need for an efficient, safe and reliable cleaning device specifically for the narrow space of the turbine. It can penetrate into these narrow spaces that are difficult to reach and effectively remove various dirt and impurities to ensure the normal operation and efficient power generation of the turbine. This demand has prompted the birth of the peristaltic turbine narrow gap cleaning device of the present invention. Summary of the invention

[0003] In order to solve the current technical problems, the main purpose of the present invention is to provide a peristaltic turbine narrow gap cleaning device and a cleaning method thereof to solve the problems of low cleaning efficiency and poor cleaning effect between the stator and rotor of a large hydro-generator.

[0004] The technical solution adopted by the present invention is: a peristaltic turbine narrow gap cleaning device, including a frame and a power transmission device, a walking device, a knocking operation device and a sound collection device arranged on the frame; wherein the power transmission device provides power support for the robot, and the walking device is a peristaltic turbine narrow gap cleaning device, including an airbag unit, a skeleton, a cleaning unit and an air supply control unit, the two airbag units are respectively located on both sides of the skeleton, one end of the airbag unit is fixedly connected to the skeleton, and the other end is slidably connected to the skeleton guide, the cleaning unit and the air supply control unit are installed on the skeleton, the cleaning unit is used to clean the turbine, and the air supply control unit is used to control the air supply of the airbag unit to make the airbag unit expand and retract, thereby loading the skeleton to peristaltic walk.

[0005] The airbag unit includes a first inflatable airbag, a telescopic airbag and a second inflatable airbag. The first inflatable airbag and the telescopic airbag are connected by a first connecting structure, and the telescopic airbag and the second inflatable airbag are connected by a second connecting structure. The first inflatable airbag, the telescopic airbag and the second inflatable airbag are respectively connected with air pipes, and each air pipe is respectively connected to an air supply control unit; the first connecting structure is fixedly connected to one end of the skeleton, and the second connecting structure is guided and slidably connected to the other end of the skeleton.

[0006] A first connecting plate is provided on the first connecting structure, and the first connecting plate is fixedly connected to one end of the frame. A second connecting plate is provided on the second connecting structure, and the second connecting plates of the airbag units on both sides are respectively connected to the two ends of the sliding plate, and the sliding plate is slidingly connected to the frame guide.

[0007] One end of the frame is connected to a guide frame, a slide groove is arranged on the guide frame, and the second connecting structure slides along the slide groove through a sliding column.

[0008] The cleaning unit is installed on a slide seat, both ends of which are respectively connected to the frame guide for sliding. A driving device is also installed on the frame, and the driving device is connected to the slide seat to drive the slide seat to move back and forth along the frame.

[0009] Guide rails are installed on the upper side of the frame and at both ends of the slide seat. Slide blocks are slidably installed on the guide rails. Both ends of the slide seat are respectively installed on the slide blocks on both sides.

[0010] The driving device includes a motor, a driving wheel, a driven wheel and a belt. The motor is installed at one end of the skeleton, the driving wheel is installed on the output shaft of the motor, and the driven wheel is installed at one end of the skeleton through a wheel seat. The belt is sleeved on the driving wheel and the driven wheel, and the belt is connected to the slide seat.

[0011] It also includes a visual unit, which includes a connecting seat and a camera. One end of the connecting seat is connected to the end of the frame, and the other end is provided with a mounting groove, and the camera is installed in the mounting groove.

[0012] The air supply control unit is powered by a battery installed on the frame, or by an umbilical cable.

[0013] The cleaning method of the peristaltic turbine narrow gap cleaning device is used to clean the gap between the stator and rotor of the turbine, and the cleaning method comprises the following steps: S1. When the airbag unit is exhausted, first place the peristaltic turbine narrow gap cleaning device into the gap between the turbine stator and the turbine rotor; S2. When the peristaltic turbine narrow gap cleaning device is limited, the air supply control unit is controlled to inflate air into the airbag unit, so that the airbag unit expands and abuts against the turbine stator and the turbine rotor; S3, the air supply control unit controls the second inflatable airbag to exhaust, and then the air supply control unit controls the telescopic airbag to exhaust, at which time the telescopic airbag begins to shrink, and at the same time drives the second inflatable airbag to move toward the first inflatable airbag; S4, when the telescopic airbag is shrunk to the right position, the air supply control unit inflates the second expansion airbag until the second expansion airbag abuts against the turbine stator and turbine rotor; S5, the air supply control unit controls the first inflation airbag to exhaust; S6, the air supply control unit inflates the telescopic airbag, and the telescopic airbag stretches, thereby moving the peristaltic turbine narrow gap cleaning device; S7, repeat S3-S6, and the peristaltic turbine narrow gap cleaning device moves upward or downward between the turbine stator and the turbine rotor; wherein, during the movement of the peristaltic turbine narrow gap cleaning device or when the first expansion airbag and the second expansion airbag are both inflated, the inner wall of the turbine stator or the outer wall of the turbine rotor is cleaned by the cleaning unit.

[0014] The present invention has the following beneficial effects: 1. The cleaning unit of the present invention is used to clean the turbine, and the air supply control unit is used to control the air supply of the airbag unit so that the airbag unit can expand and retract, thereby carrying the skeleton to move in a creeping manner. When the airbag unit expands, the cleaning device can be stuck in the gap between the stator and the rotor of the turbine. When one end of the airbag unit is exhausted, the airbag unit shrinks again, so that the cleaning device can move in the gap. During the movement of the creeping turbine narrow gap cleaning device or when the first expansion airbag and the second expansion airbag are both inflated, the inner wall of the turbine stator or the outer wall of the turbine rotor is cleaned by the cleaning unit. The cleaning device of the present application greatly improves the cleaning efficiency of the gap between the stator and the rotor of a large hydro-turbine generator, and the cleaning effect is better.

[0015] 2. By setting up a slide, multiple cleaning units can be installed on the slide to increase the cleaning area. At the same time, the drive device drives the slide to reciprocate, which can not only further increase the cleaning area but also improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the state when the present invention is used.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the airbag unit of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of installing a cleaning unit on the frame of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the visual unit of the present invention.

[0022] Figure 6 It is a schematic diagram of the main structure of the present invention.

[0023] Figure 7 This is a schematic structural diagram of the initial working state of the airbag unit when the present invention is in use.

[0024] Figure 8 This is a schematic structural diagram of the state in which the second inflation airbag is exhausted when the present invention is in use.

[0025] Fig. 9 It is a schematic diagram of the structure of the telescopic airbag in the state of exhausting and contracting when the present invention is in use.

[0026] Reference numerals: Airbag unit 1, first inflatable airbag 101, telescopic airbag 102, second inflatable airbag 103, first connecting structure 104, second connecting structure 105, first connecting plate 106, second connecting plate 107, air delivery pipe 108, sliding plate 109, sliding column 110; Frame 2, guide frame 201, slide 202; Visual unit 3, connecting seat 301, mounting slot 302, camera 303; Cleaning unit 4, guide rail 401, slider 402, slide seat 403, motor 404, driving wheel 405, driven wheel 406, belt 407; Air supply control unit 5 , umbilical cable 6 , turbine stator 7 , turbine rotor 8 . DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1: See also Figure 1-9 The present invention provides a peristaltic water turbine narrow gap cleaning device, comprising an airbag unit 1, a frame 2, a cleaning unit 4 and an air supply control unit 5, wherein the two airbag units 1 are respectively located on both sides of the frame 2, one end of the airbag unit 1 is fixedly connected to the frame 2, and the other end is connected to the frame 2 for guiding sliding, the cleaning unit 4 and the air supply control unit 5 are installed on the frame 2, the cleaning unit 4 is used to clean the water turbine, and the air supply control unit 5 is used to control the air supply of the airbag unit 1, so that the airbag unit 1 expands and contracts, thereby carrying the frame 2 to peristaltic walk. When the airbag unit 1 expands, the cleaning device can be stuck in the gap between the water turbine stator 7 and the water turbine rotor 8, and when one end of the airbag unit 1 is exhausted, the airbag unit 1 contracts again, so that the cleaning device can walk in the gap. The cleaning unit 4 can be a brush or a roller brush, or a small dust collection device with a brush or a roller brush. Through the cleaning device of the present application, the cleaning efficiency of the gap between the stator and the rotor of a large water turbine generator is greatly improved, and the cleaning effect is better.

[0029] In this embodiment, see Figure 3 The airbag unit 1 includes a first inflatable airbag 101, a telescopic airbag 102 and a second inflatable airbag 103. The first inflatable airbag 101 and the telescopic airbag 102 are connected by a first connection structure 104, and the telescopic airbag 102 and the second inflatable airbag 103 are connected by a second connection structure 105. The first inflatable airbag 101, the telescopic airbag 102 and the second inflatable airbag 103 are respectively connected with an air supply pipe 108, and each air supply pipe 108 is respectively connected to the air supply control unit 5; the first connection structure 104 is fixedly connected to one end of the frame 2, and the second connection structure 105 is guided and slidably connected to the other end of the frame 2. Through the above structure, when the first inflatable airbag 101, the telescopic airbag 102 and the second inflatable airbag 103 are respectively inflated and deflated, the load frame 2, the cleaning unit 4 and the air supply control unit 5 can be moved in a narrow gap. The air supply pipe 108 is a hose.

[0030] See also Figure 7 When the first inflatable airbag 101, the telescopic airbag 102 and the second inflatable airbag 103 are all inflated, the cleaning device is fixed and stuck in the narrow gap.

[0031] See also Figure 8 When the first inflatable airbag 101 or the second inflatable airbag 103 is exhausted, the cleaning device is stuck in the narrow gap by the second inflatable airbag 103 or the first inflatable airbag 101, and then the telescopic airbag 102 is exhausted and contracted. Fig. 9 As shown, the first inflatable airbag 101 moves toward the second inflatable airbag 103, or the second inflatable airbag 103 moves toward the first inflatable airbag 101. Then, the first inflatable airbag 101 or the second inflatable airbag 103 is inflated, the second inflatable airbag 103 or the first inflatable airbag 101 is deflated, and the telescopic airbag 102 is inflated and extended. In this way, the telescopic airbag 102 can move in a narrow gap.

[0032] In order to increase friction, convex rings may be provided on the outer walls of the first inflation airbag 101 and the second inflation airbag 103 .

[0033] Further, see Figure 2 , 3 The first connection structure 104 is provided with a first connection plate 106, which is fixedly connected to one end of the frame 2, and the second connection structure 105 is provided with a second connection plate 107, and the second connection plates 107 of the airbag units 1 on both sides are respectively connected to the two ends of the sliding plate 109, and the sliding plate 109 is connected to the frame 2 in a guided sliding manner. Through the above structure, it is convenient to connect the airbag unit 1 with the frame 2, and the second connection plates 107 on both sides are respectively connected to the sliding plate 109, so that the airbag units 1 on both sides can be synchronously extended and retracted, so that the robot can keep moving in a straight line.

[0034] Further, see Figure 4 One end of the frame 2 is connected to a guide frame 201, on which a slide groove 202 is provided, and the second connecting structure 105 is guided to slide along the slide groove 202 by the sliding column 110. Similarly, the sliding plate 109 can also be guided to slide along the slide groove 202 by the sliding column 110.

[0035] See also Figure 4 The cleaning unit 4 is mounted on a slide 403, and both ends of the slide 403 are respectively connected to the guides of the frame 2 for sliding movement. The frame 2 is also provided with a driving device, which is connected to the slide 403 to drive the slide 403 to move back and forth along the frame 2. By setting the slide 403, multiple cleaning units 4 can be mounted on the slide 403, thereby increasing the cleaning area. At the same time, the driving device drives the slide 403 to reciprocate, which can not only further increase the cleaning area, but also improve the cleaning effect.

[0036] When used, the driving device may be a cylinder, which is controlled by an air supply control unit 5 .

[0037] Specifically, guide rails 401 are installed on the upper side of the frame 2 and at both ends of the slide 403 , and sliders 402 are slidably installed on the guide rails 401 , and both ends of the slide 403 are respectively installed on the sliders 402 on both sides.

[0038] In this embodiment, see Figure 4 The driving device includes a motor 404, a driving wheel 405, a driven wheel 406 and a belt 407. The motor 404 is installed at one end of the frame 2, the driving wheel 405 is installed on the output shaft of the motor 404, the driven wheel 406 is installed at one end of the frame 2 through a wheel seat, the belt 407 is sleeved on the driving wheel 405 and the driven wheel 406, and the belt 407 is connected to the slide 403. The motor 404 rotates rapidly forward and reverse, thereby driving the belt 407 to rotate. Since the belt 407 is connected to the slide 403, it drives the cleaning unit 4 to reciprocate rapidly, and the cleaning efficiency is high.

[0039] Furthermore, it also includes a visual unit 3, which includes a connecting seat 301 and a camera 303. One end of the connecting seat 301 is connected to the end of the frame 2, and the other end is provided with a mounting groove 302, and the camera 303 is installed in the mounting groove 302. The camera 303 provides an image inside the narrow gap, which is convenient for controlling the operation of the cleaning device and focusing on cleaning key parts. The camera 303 is installed in the mounting groove 302, making the structure flatter and more suitable for narrow spaces. In this embodiment, three cameras 303 are installed, and the installation angles of the three cameras 303 are different, thereby providing a wider field of view.

[0040] In this embodiment, the gas supply control unit 5 is powered by a battery installed on the frame 2 , or by an umbilical cable 6 .

[0041] Specifically, the air supply control unit 5 includes a controller and an air pump, which are connected to the air supply pipe 108 through three-way solenoid valves. The three-way solenoid valves are controlled to control the inflation and deflation of each airbag in the airbag unit 1.

[0042] Embodiment 2: The cleaning method of the peristaltic turbine narrow gap cleaning device is used to clean the gap between the stator and rotor of the turbine, and the cleaning method comprises the following steps: S1. When the airbag unit 1 is exhausted, first place the peristaltic turbine narrow gap cleaning device into the gap between the turbine stator 7 and the turbine rotor 8. This step is performed manually by the operator.

[0043] S2. When the peristaltic turbine narrow gap cleaning device is limited, the air supply control unit 5 is controlled to inflate the airbag unit 1, the airbag unit 1 expands, and the airbag unit 1 abuts against the turbine stator 7 and the turbine rotor 8, and then the operator can let go and leave. Figure 7 .

[0044] S3, see Figure 8 , the air supply control unit 5 controls the second inflatable airbag 103 to exhaust. Fig. 9 The air supply control unit 5 controls the telescopic airbag 102 to exhaust. At this time, the telescopic airbag 102 begins to shrink and drives the second inflatable airbag 103 to move toward the first inflatable airbag 101 .

[0045] S4. When the telescopic airbag 102 is shrunk to its proper position, the air supply control unit 5 inflates the second expansion airbag 103 until the second expansion airbag 103 abuts against the turbine stator 7 and the turbine rotor 8.

[0046] S5 , the air supply control unit 5 controls the first inflatable airbag 101 to deflate.

[0047] S6. The air supply control unit 5 inflates air into the telescopic airbag 102, and the telescopic airbag 102 stretches, thereby moving the peristaltic turbine narrow gap cleaning device.

[0048] S7, repeat S3-S6, and the peristaltic turbine narrow gap cleaning device moves upward or downward between the turbine stator 7 and the turbine rotor 8; wherein, during the movement of the peristaltic turbine narrow gap cleaning device or when the first expansion airbag 101 and the second expansion airbag 103 are both inflated, the inner wall of the turbine stator 7 or the outer wall of the turbine rotor 8 is cleaned by the cleaning unit 4.

Claims

1. A peristaltic turbine narrow gap cleaning device, characterized in that: The invention comprises an airbag unit (1), a frame (2), a cleaning unit (4) and an air supply control unit (5), wherein the two airbag units (1) are respectively located on both sides of the frame (2), one end of the airbag unit (1) is fixedly connected to the frame (2), and the other end is guided and slidably connected to the frame (2), the cleaning unit (4) and the air supply control unit (5) are mounted on the frame (2), the cleaning unit (4) is used to clean the turbine, and the air supply control unit (5) is used to control the air supply of the airbag unit (1) so as to expand and retract the airbag unit (1), thereby carrying the frame (2) to move in a creeping manner.

2. The peristaltic turbine narrow gap cleaning device according to claim 1, characterized in that: The airbag unit (1) comprises a first inflatable airbag (101), a telescopic airbag (102) and a second inflatable airbag (103); the first inflatable airbag (101) and the telescopic airbag (102) are connected via a first connecting structure (104); the telescopic airbag (102) and the second inflatable airbag (103) are connected via a second connecting structure (105); the first inflatable airbag (101), the telescopic airbag (102) and the second inflatable airbag (103) are respectively connected to an air supply pipe (108); each air supply pipe (108) is respectively connected to an air supply control unit (5); the first connecting structure (104) is fixedly connected to one end of a frame (2), and the second connecting structure (105) is guided and slidably connected to the other end of the frame (2).

3. The peristaltic turbine narrow gap cleaning device according to claim 2, characterized in that: The first connection structure (104) is provided with a first connection plate (106), the first connection plate (106) being fixedly connected to one end of the frame (2), the second connection structure (105) is provided with a second connection plate (107), the second connection plates (107) of the airbag units (1) on both sides are respectively connected to the two ends of the sliding plate (109), and the sliding plate (109) is connected to the frame (2) in a guided sliding manner.

4. The peristaltic turbine narrow gap cleaning device according to claim 2 or 3, characterized in that: One end of the skeleton (2) is connected to a guide frame (201), a slide groove (202) is provided on the guide frame (201), and the second connection structure (105) is guided to slide along the slide groove (202) via a sliding column (110).

5. The peristaltic turbine narrow gap cleaning device according to claim 1, characterized in that: The cleaning unit (4) is mounted on a slide seat (403), and both ends of the slide seat (403) are respectively connected to the frame (2) in a guiding and sliding manner. A driving device is also mounted on the frame (2), and the driving device is connected to the slide seat (403) to drive the slide seat (403) to move back and forth along the frame (2).

6. The peristaltic turbine narrow gap cleaning device according to claim 5, characterized in that: A guide rail (401) is installed on the upper side of the frame (2) and at both ends of the slide seat (403). A slider (402) is slidably installed on the guide rail (401). Both ends of the slide seat (403) are respectively installed on the sliders (402) on both sides.

7. The peristaltic turbine narrow gap cleaning device according to claim 5 or 6, characterized in that: The driving device comprises a motor (404), a driving wheel (405), a driven wheel (406) and a belt (407); the motor (404) is mounted on one end of the frame (2); the driving wheel (405) is mounted on the output shaft of the motor (404); the driven wheel (406) is mounted on one end of the frame (2) via a wheel seat; the belt (407) is sleeved on the driving wheel (405) and the driven wheel (406), and the belt (407) is connected to the slide seat (403).

8. The peristaltic turbine narrow gap cleaning device according to claim 1, characterized in that: It also comprises a visual unit (3), the visual unit (3) comprising a connecting seat (301) and a camera (303), one end of the connecting seat (301) is connected to the end of the frame (2), and the other end is provided with a mounting groove (302), and the camera (303) is mounted in the mounting groove (302).

9. The peristaltic turbine narrow gap cleaning device according to claim 1, characterized in that: The gas supply control unit (5) is powered by a battery installed on the frame (2), or by an umbilical cable (6).

10. A cleaning method using the peristaltic turbine narrow gap cleaning device according to any one of claims 1 to 9, characterized in that: Used to clean the gap between the stator and rotor of a water turbine, the cleaning method comprises the following steps: S1. When the airbag unit (1) is exhausted, the peristaltic turbine narrow gap cleaning device is first placed in the gap between the turbine stator (7) and the turbine rotor (8); S2, when the peristaltic turbine narrow gap cleaning device is limited, controlling the air supply control unit (5) to inflate air into the airbag unit (1), so that the airbag unit (1) expands and the airbag unit (1) abuts against the turbine stator (7) and the turbine rotor (8); S3, the air supply control unit (5) controls the second expansion airbag (103) to exhaust, and then the air supply control unit (5) controls the telescopic airbag (102) to exhaust. At this time, the telescopic airbag (102) begins to shrink, and at the same time drives the second expansion airbag (103) to move toward the first expansion airbag (101); S4, when the telescopic airbag (102) is contracted to its proper position, the air supply control unit (5) inflates the second expansion airbag (103) until the second expansion airbag (103) abuts against the turbine stator (7) and the turbine rotor (8); S5, the air supply control unit (5) controls the first inflation airbag (101) to exhaust air; S6, the air supply control unit (5) inflates air into the telescopic airbag (102), and the telescopic airbag (102) stretches, thereby causing the peristaltic turbine narrow gap cleaning device to move; S7, repeating S3-S6, the peristaltic turbine narrow gap cleaning device moves upward or downward between the turbine stator (7) and the turbine rotor (8); wherein, during the movement of the peristaltic turbine narrow gap cleaning device or when both the first expansion airbag (101) and the second expansion airbag (103) are inflated, the inner wall of the turbine stator (7) or the outer wall of the turbine rotor (8) is cleaned by the cleaning unit (4).

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