Power station boiler water cooling wall quality detection device

Abstract

The utility model relates to the technical field of power station equipment detection, and discloses a power station boiler water cooling wall quality detection device which comprises a shell, an X-ray detector is fixedly connected to the inner side of the shell, a detection head is fixedly connected to the bottom of the X-ray detector, a connecting plate is fixedly connected to the bottom of the shell, and the connecting plate is fixedly connected to the bottom of the shell. The left side and the right side of the connecting plate are fixedly connected with fixing plates, the sides, away from each other, of the two fixing plates are provided with walking assemblies, the front side of the shell is fixedly connected with a camera, the outer wall of the shell is fixedly connected with a connecting port, and the outer wall of the shell is provided with a dust sweeping mechanism. According to the utility model, the X-ray detector is applied to the quality detection of the water-cooled wall so as to penetrate through the material of the water-cooled wall and detect the internal defects, meanwhile, the water-cooled wall is not damaged, the detection can be carried out in the running state of the equipment, the shutdown disassembly is not needed, and the influence of the detection on the production is greatly reduced.

Description

A quality testing device for water-cooled walls of power plant boilers Technical Field

[0001] This utility model relates to the field of power plant equipment testing technology, and in particular to a quality testing device for water-cooled walls of power plant boilers. Background Technology

[0002] Power plant boilers are one of the core pieces of equipment in thermal power plants, and their stable operation is crucial for the continuous supply of electricity. As a key component of power plant boilers, water-cooled walls play an important role in absorbing high-temperature radiant heat in the furnace, protecting the furnace walls, and generating steam.

[0003] Water-cooled walls are exposed to harsh environments of high temperature, high pressure, and corrosion for a long time, which makes them prone to various quality problems. After long-term operation, internal defects such as cracks, pores, and slag inclusions may appear. If these defects are not detected and dealt with in time, they may lead to serious accidents such as water-cooled wall leakage and tube rupture, affecting the safe operation of the power plant and even causing casualties and significant economic losses.

[0004] Traditional methods for inspecting the quality of water-cooled walls in power plant boilers include visual inspection and ultrasonic testing. Both of these require manual operation, are slow and inefficient, and can lead to misjudgments or missed detections due to human judgment. Furthermore, these tests must be performed while the boiler is shut down, which not only affects the normal production of the power plant but also fails to detect problems that may occur in the water-cooled walls during operation in a timely manner. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a power plant boiler water-cooled wall quality inspection device, which aims to improve the problem that the existing technology requires shutdown for inspection when performing boiler water-cooled wall quality inspection, thus affecting the normal production of the power plant.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a quality inspection device for water-cooled walls of power plant boilers, comprising a housing, an X-ray detector fixedly connected to the inner side of the housing, a probe head fixedly connected to the bottom of the X-ray detector, a connecting plate fixedly connected to the bottom of the housing, fixing plates fixedly connected to the left and right sides of the connecting plate, a walking component provided on the opposite side of the two fixing plates, a camera fixedly connected to the front of the housing, a connection port fixedly connected to the outer wall of the housing, and a dust-sweeping mechanism provided on the outer wall of the housing. The dust-sweeping mechanism is used to clean the dust on the water-cooled walls, providing a good environment for the X-ray detector to perform inspection.

[0007] As a further description of the above technical solution:

[0008] The dust removal mechanism includes a dust pusher plate, the rear side of which is fixedly connected to the front side of the outer wall of the housing. A collection groove is provided on the front side of the dust pusher plate, and dust outlets are provided on both the left and right sides of the outer wall of the dust pusher plate. A scraper plate is fixedly connected to the bottom of the dust pusher plate.

[0009] As a further description of the above technical solution:

[0010] The walking assembly includes two servo motors. The outer walls of the two servo motors are fixedly connected to the front and rear sides of the connecting plate. The output ends of the two servo motors are fixedly connected to rotating rods. The outer walls of the two rotating rods are fixedly connected to driving wheels. The rear sides of the two driving wheels are provided with driven wheels. The two driving wheels and driven wheels are connected by tracks.

[0011] As a further description of the above technical solution:

[0012] Multiple permanent magnets are fixedly connected to the outer walls of both tracks, and the multiple permanent magnets are equidistantly distributed on the outer walls of the tracks.

[0013] As a further description of the above technical solution:

[0014] A drive component is fixedly connected to the rear side of the connecting plate, and a caster wheel is provided at the bottom of the drive component.

[0015] As a further description of the above technical solution:

[0016] Both servo motors are fixedly connected to protective covers on their outer walls, and adjacent sides of the protective covers are fixedly connected to the outer wall of the connecting plate.

[0017] As a further description of the above technical solution:

[0018] A signal light is fixedly connected to the top of the housing.

[0019] As a further description of the above technical solution:

[0020] The X-ray detector is positioned in the middle of the two tracks, with the bottom of the X-ray detector being lower than the bottom of the tracks.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the servo motor drives the track to rotate, and a permanent magnet is set on its outer wall to realize the stable movement of the device on the water-cooled wall. The X-ray detector is applied to the quality inspection of the water-cooled wall to penetrate the material of the water-cooled wall and detect internal defects. At the same time, it will not cause any damage to the water-cooled wall. The inspection can be carried out while the equipment is running, without stopping the machine for disassembly, which greatly reduces the impact of inspection on production.

[0023] 2. In this utility model, the timely cleaning of dust by the dust-pushing plate reduces the erosion and damage of dust to the X-ray detector, extends the service life of the detector, and also provides a clean detection environment for the detector, ensuring that the signals it receives are more accurate and improving the accuracy of judging the quality of the water-cooled wall. Attached Figure Description

[0024] Figure 1 is a three-dimensional schematic diagram of a power plant boiler water-cooled wall quality detection device proposed in this utility model;

[0025] Figure 2 is a bottom view of a power plant boiler water-cooled wall quality detection device proposed in this utility model;

[0026] Figure 3 is a schematic diagram of the walking component of a power plant boiler water-cooled wall quality detection device proposed in this utility model.

[0027] Figure 4 is a partial exploded view of the walking assembly of a power plant boiler water-cooled wall quality detection device proposed in this utility model;

[0028] Figure 5 is a schematic diagram of the ash removal mechanism of a power plant boiler water-cooled wall quality detection device proposed in this utility model.

[0029] Legend:

[0030] 1. Housing; 2. Dust removal mechanism; 201. Dust pusher; 202. Collection trough; 203. Dust outlet; 204. Scraper; 3. X-ray detector; 4. Detector head; 5. Servo motor; 6. Rotating rod; 7. Drive wheel; 8. Track; 9. Permanent magnet; 10. Driven wheel; 11. Connecting plate; 12. Fixing plate; 13. Protective cover; 14. Connection port; 15. Signal light; 16. Camera; 17. Drive component; 18. Caster wheel. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Referring to Figures 2, 3, and 4, this utility model provides an embodiment of a power plant boiler water-cooled wall quality inspection device, comprising a housing 1, an X-ray detector 3 fixedly connected to the inner side of the housing 1, a detector head 4 fixedly connected to the bottom of the X-ray detector 3, a connecting plate 11 fixedly connected to the bottom of the housing 1, fixing plates 12 fixedly connected to the left and right sides of the connecting plate 11, a walking assembly provided on the opposite side of the two fixing plates 12, a camera 16 fixedly connected to the front side of the housing 1, a connection port 14 fixedly connected to the outer wall of the housing 1, and a dust-sweeping mechanism 2 provided on the outer wall of the housing 1 for cleaning dust on the water-cooled wall, providing a good environment for the X-ray detector 3 to inspect; the walking assembly includes two servo motors. 5. The outer walls of the two servo motors 5 are fixedly connected to the front and rear sides of the connecting plate 11. The output ends of the two servo motors 5 are fixedly connected to rotating rods 6. The outer walls of the two rotating rods 6 are fixedly connected to driving wheels 7. The rear sides of the two driving wheels 7 are provided with driven wheels 10. The two driving wheels 7 and driven wheels 10 are connected by tracks 8. The outer walls of the two tracks 8 are fixedly connected to multiple permanent magnets 9, which are equidistantly distributed on the outer walls of the tracks 8. The rear side of the connecting plate 11 is fixedly connected to a driving component 17, and the bottom of the driving component 17 is provided with universal wheels 18. The X-ray detector 3 is located in the middle part of the two tracks 8, and the bottom height of the X-ray detector 3 is lower than the bottom height of the tracks 8. The top of the housing 1 is fixedly connected to an indicator light 15.

[0033] Specifically, by placing the X-ray detector 3 in the middle of the two tracks 8, and at a height lower than the tracks 8 to avoid collisions with the water-cooled wall, the servo motor 5 drives the drive wheel 7 to rotate via the rotating rod 6, causing the tracks 8 on its outer wall to rotate, and finally driving the driven wheel 10 to rotate, enabling the device to move on the water-cooled wall. Multiple permanent magnets 9 evenly distributed on the outer wall of the tracks 8 ensure the device is firmly attached to the water-cooled wall, preventing shaking or slippage during inspection and ensuring smooth operation. The universal wheels 18 alter the conventional straight-line travel path, allowing the device to move more smoothly during travel. The device can flexibly adjust its direction to meet more diverse and efficient movement needs. The camera 16 can record the detection process in real time, allowing operators to understand the detection situation at any time, determine the route, and improve the convenience and accuracy of operation. The indicator light 15 on the top of the housing 1 can indicate the working status of the device, so that operators can keep abreast of the device's operation and make corresponding adjustments. The connection port 14 facilitates connection to external devices, enabling rapid transmission of detection data, which is convenient for subsequent data analysis and processing, and provides a good basis for the maintenance and repair of the water-cooled wall. The servo motor 5 is model SMA-PUC02D.

[0034] Referring to Figures 1 and 5, the dust removal mechanism 2 includes a dust pusher plate 201. The rear side of the dust pusher plate 201 is fixedly connected to the front side of the outer wall of the housing 1. A collection groove 202 is provided on the front side of the dust pusher plate 201. Dust outlets 203 are provided on both the left and right sides of the outer wall of the dust pusher plate 201. A scraper plate 204 is fixedly connected to the bottom of the dust pusher plate 201.

[0035] Specifically, by setting a dust-pushing plate 201 on the front side of the housing 1, dust can be cleaned in time to reduce the erosion and damage of dust to the X-ray detector 3. At the same time, it can also provide a clean detection environment for the X-ray detector 3, ensuring that the signal received by the detector head 4 is more accurate, thereby greatly improving the accuracy of judging the quality of the water-cooled wall.

[0036] Referring to Figure 3, protective covers 13 are fixedly connected to the outer walls of both servo motors 5, and adjacent sides of the protective covers 13 are fixedly connected to the outer wall of the connecting plate 11.

[0037] Specifically, the protective cover 13 can prevent external collisions, scratches, etc. from damaging the servo motor 5, and can also block dust and moisture from entering the servo motor 5, extending the service life of the servo motor 5. The connecting plate 11 is used to connect the housing 1 and the track 8, supporting the movement of the X-ray detector 3 with the movement of the bottom walking component.

[0038] Working principle: First, after the device is started, the two servo motors 5 start to run. The servo motors 5 drive the rotating rod 6 to rotate, which in turn causes the drive wheel 7 on the rotating rod 6 to rotate. The drive wheel 7 drives the driven wheel 10 to rotate through the track 8. Since multiple permanent magnets 9 are evenly distributed on the outer wall of the track 8, when the device approaches the water-cooled wall, the permanent magnets 9 will be attracted to the water-cooled wall, so that the entire device can move stably on the water-cooled wall. During this process, the camera 16 determines the route. The X-ray detector 3 is set in the middle part of the two tracks 8. It emits X-rays to the water-cooled wall through the probe head 4 and receives the reflected signals. The quality of the water-cooled wall is judged by analyzing these signals. Finally, the data is transmitted to the external device through the connection port 14.

[0039] Furthermore, during the movement of the device, the dust pusher 201 first contacts the dust on the water-cooled wall. As the dust pusher 201 moves forward, it pushes the dust forward, and some of the dust is temporarily stored in the collection groove 202 on the front side of the dust pusher 201. As the dust pusher 201 continues to move, the dust in the collection groove 202 is discharged from the dust outlets 203 on the left and right sides of the outer wall of the dust pusher 201 under the squeezing action of the dust pusher 201, thus avoiding excessive accumulation of dust in the collection groove 202 and affecting the dust removal effect. At the same time, the scraper 204 at the bottom of the dust pusher 201 further comes into close contact with the water-cooled wall, scraping off some stubborn dust, ensuring that the dust on the surface of the water-cooled wall is cleaned as thoroughly as possible, thereby providing a good environment for the X-ray detector to perform its inspection.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quality testing device for water-cooled walls of power plant boilers, comprising a housing (1), characterized in that: An X-ray detector (3) is fixedly connected to the inner side of the housing (1). A probe head (4) is fixedly connected to the bottom of the X-ray detector (3). A connecting plate (11) is fixedly connected to the bottom of the housing (1). Fixing plates (12) are fixedly connected to the left and right sides of the connecting plate (11). A walking component is provided on the side of the two fixing plates (12) that are far apart. A camera (16) is fixedly connected to the front side of the housing (1). A connection port (14) is fixedly connected to the outer wall of the housing (1). A dust removal mechanism (2) is provided on the outer wall of the housing (1). The dust removal mechanism (2) is used to clean the dust on the water-cooled wall and provide a good environment for the detection of the X-ray detector (3).

2. The power plant boiler water-cooled wall quality testing device according to claim 1, characterized in that: The dust removal mechanism (2) includes a dust pusher plate (201), the rear side of which is fixedly connected to the front side of the outer wall of the housing (1), a collection groove (202) is provided on the front side of the dust pusher plate (201), and dust outlets (203) are provided on the left and right sides of the outer wall of the dust pusher plate (201). A scraper plate (204) is fixedly connected to the bottom of the dust pusher plate (201).

3. The power plant boiler water-cooled wall quality testing device according to claim 1, characterized in that: The walking assembly includes two servo motors (5), the outer walls of the two servo motors (5) are fixedly connected to the front and rear sides of the connecting plate (11), the output ends of the two servo motors (5) are fixedly connected to rotating rods (6), the outer walls of the two rotating rods (6) are fixedly connected to driving wheels (7), the rear sides of the two driving wheels (7) are provided with driven wheels (10), and the two driving wheels (7) and driven wheels (10) are connected by tracks (8).

4. The power plant boiler water-cooled wall quality testing device according to claim 3, characterized in that: Multiple permanent magnets (9) are fixedly connected to the outer walls of both tracks (8), and the multiple permanent magnets (9) are equidistantly distributed on the outer walls of the tracks (8).

5. The power plant boiler water-cooled wall quality testing device according to claim 1, characterized in that: A drive component (17) is fixedly connected to the rear side of the connecting plate (11), and a universal wheel (18) is provided at the bottom of the drive component (17).

6. The power plant boiler water-cooled wall quality testing device according to claim 3, characterized in that: The outer walls of the two servo motors (5) are fixedly connected with protective covers (13), and the adjacent sides of the protective covers (13) are fixedly connected to the outer wall of the connecting plate (11).

7. The power plant boiler water-cooled wall quality testing device according to claim 1, characterized in that: A signal light (15) is fixedly connected to the top of the housing (1).

8. The power plant boiler water-cooled wall quality testing device according to claim 3, characterized in that: The X-ray detector (3) is located in the middle part of the two tracks (8), and the bottom height of the X-ray detector (3) is lower than the bottom height of the tracks (8).

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