Tour inspection type monitoring device for wall thickness of coal-fired boiler

Abstract

The utility model discloses a coal-fired boiler wall thickness inspection type monitoring device, which relates to the technical field of wall thickness detection equipment and comprises a support ring, an ultrasonic thickness gauge, an annular guide rail, a rotary driving component, a hydraulic cylinder, an air cylinder and a mounting plate. According to the utility model, the probe can carry out multi-point monitoring work at the vertical position of the outer wall of the boiler, and the probe can carry out multi-point monitoring work at the horizontal annular position of the outer wall of the boiler; the probe can rotate during lifting adjustment, so that bidirectional spiral movement of the probe on the outer wall of the boiler is realized, the probe can perform multi-point wall thickness monitoring treatment on a bidirectional spiral circuit of the outer wall of the boiler, and the operation convenience of monitoring the wall thickness of the boiler can be effectively improved; and meanwhile, wall thickness monitoring processing can be automatically conducted on different positions of the boiler, the comprehensiveness and accuracy of monitoring of the wall thickness of the boiler can be effectively improved, and the equipment cost is not high.

Description

Technical Field

[0001] This utility model relates to the technical field of wall thickness detection equipment, specifically a coal-fired boiler wall thickness inspection and monitoring device. Background Technology

[0002] When the high-temperature heating surface of the boiler is working inside the furnace, its wall thickness will gradually decrease over time due to the scouring of flue gas and the daily soot blowing. Therefore, during the operation of the boiler, it is necessary to regularly detect and process the boiler wall thickness. When establishing a boiler wall thickness early warning model, it is necessary to detect the boiler wall thickness in real time to provide wall thickness data.

[0003] Patent (CN222144083U) discloses a fixed online device for measuring the wall thickness of water-cooled pipes in hazardous waste waste heat boilers, belonging to the technical field of fixed pipe wall thickness measurement devices. It consists of a probe water-cooled sleeve, a probe protective sleeve, a probe connecting wire, an ultrasonic thickness gauge probe, and an ultrasonic thickness gauge. The ultrasonic thickness gauge probe and probe connecting wire are housed in the probe protective sleeve, which in turn is housed within the probe water-cooled sleeve. One end of the probe water-cooled sleeve is welded to the inner side of the waste heat boiler wall, while the other end and the probe protective sleeve are welded to the outer wall of the waste heat boiler water-cooled pipe. The ultrasonic thickness gauge probe is tightly fitted to the outer wall of the waste heat boiler water-cooled pipe. The detection signal is transmitted to the ultrasonic thickness gauge through the probe connecting wire, and the wall thickness data of the water-cooled pipe is displayed on the digital display of the ultrasonic thickness gauge. This invention can accurately and in real-time measure the wall thickness of water-cooled pipes, allowing for early detection and emergency measures when the pipe wall is about to rupture.

[0004] The boiler wall thickness detection device in the aforementioned patent uses an ultrasonic thickness gauge to detect the wall thickness, but it can only detect at a fixed position and cannot monitor the boiler wall thickness at multiple points and in multiple directions. Manual operation to monitor the wall thickness at different positions on the outer wall of the boiler is cumbersome and inefficient. Using multiple ultrasonic thickness gauges to monitor at different positions on the boiler results in excessively high equipment costs. Utility Model Content

[0005] The purpose of this invention is to provide a coal-fired boiler wall thickness inspection monitoring device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a coal-fired boiler wall thickness inspection monitoring device, including a support ring and an ultrasonic thickness gauge. The bottom of the support ring is provided with a rotatably connected annular guide rail. The outer wall of the support ring is provided with a rotation drive assembly for the annular guide rail. The top of the support ring is provided with a vertical linear drive assembly. The bottom of the annular guide rail is provided with a cylinder horizontally. The output end of the cylinder is provided with a mounting plate near the inner ring of the annular guide rail. The outer wall of the mounting plate is provided with a mounting groove that matches the probe of the ultrasonic thickness gauge.

[0007] Furthermore, the linear drive component is one of a hydraulic cylinder, an electric slide, or a linear motor.

[0008] Furthermore, the linear drive assembly includes several hydraulic cylinders, which are fixedly connected to the top of the boiler outer wall via a mounting bracket, and the support ring is movably sleeved on the boiler outer wall.

[0009] Furthermore, two hydraulic cylinders are provided, which are parallel to each other, and the output end of the hydraulic cylinder is fixedly connected to the top of the support ring.

[0010] Furthermore, the rotary drive assembly includes a servo motor and a gear, the output shaft of the servo motor is fixedly connected to the gear, and the outer wall of the annular guide rail is provided with a rack that meshes with the gear.

[0011] Furthermore, a support plate is provided on one side of the outer wall of the support ring, and the output shaft of the servo motor passes through the support plate and is fixedly connected to the gear shaft.

[0012] Furthermore, the servo motor is vertically mounted on the top of the support plate, and the top of the support plate has a through hole that matches the output shaft of the servo motor.

[0013] Furthermore, the outer wall of the mounting plate is provided with a connecting plate, the bottom of the annular guide rail is provided with several guide rails, and the outer wall of the connecting plate is provided with several sliders that match the guide rails.

[0014] Furthermore, the guide rail is parallel to the cylinder, and the length of the connecting plate is greater than the maximum stroke of the cylinder.

[0015] Furthermore, two guide rails are provided, which are arranged in parallel. Two sliders are slidably provided on the outer wall of each guide rail, and the two sliders are respectively located at both ends of the outer wall of the connecting plate.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0017] 1. This utility model, by setting up a support ring, an ultrasonic thickness gauge, an annular guide rail, a rotary drive assembly, a hydraulic cylinder, a pneumatic cylinder, and a mounting plate, allows the adjustable hydraulic cylinder to extend and retract, driving the support ring to rise and fall. This enables the probe to perform multi-point monitoring on the boiler's outer wall in a vertical position, effectively improving the multi-point monitoring effect. The rotary drive assembly drives the annular guide rail to rotate, enabling the probe to perform multi-point monitoring on the boiler's outer wall in a horizontal annular position, further improving the multi-point monitoring effect. Simultaneously adjusting the hydraulic cylinder's extension and retraction movement drives the annular guide rail's rotation, allowing the probe to rotate while being raised and lowered. This achieves a bidirectional helical motion of the probe on the boiler's outer wall, enabling multi-point wall thickness monitoring along this bidirectional helical path. This significantly improves the ease of operation for boiler wall thickness monitoring and allows for automatic wall thickness monitoring at different locations on the boiler, enhancing the comprehensiveness and accuracy of boiler wall thickness monitoring. Furthermore, the equipment cost is low.

[0018] 2. In this utility model, a support ring is fitted onto the outer wall of the boiler, and a hydraulic cylinder is fixed to the top of the outer wall of the boiler via a mounting bracket. The support ring provides rotational support for the annular guide rail, allowing the annular guide rail to rotate at the bottom of the support ring. A rotation drive assembly is used to drive the annular guide rail to rotate. The extension and retraction of the hydraulic cylinder can drive the support ring to move vertically, thereby driving the annular guide rail to move vertically. The cylinder at the bottom of the annular guide rail can drive the mounting plate to move horizontally, thereby driving the probe on the mounting plate to adjust horizontally, thus adjusting the distance between the probe and the outer wall of the boiler. The main body of the ultrasonic thickness gauge can be fixed on the annular guide rail or installed on other components. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the bottom structure of the annular guide rail of this utility model;

[0022] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a structural schematic diagram of the mounting plate and connecting plate of this utility model;

[0024] In the diagram: 1. Support ring; 101. Support plate; 2. Circular guide rail; 201. Rack; 202. Guide rail; 3. Rotary drive assembly; 301. Servo motor; 302. Gear; 4. Cylinder; 5. Mounting plate; 501. Connecting plate; 502. Slider; 6. Probe; 7. Mounting slot; 8. Linear drive assembly; 801. Mounting bracket. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0026] Please see Figures 1-4 This utility model provides a technical solution: a coal-fired boiler wall thickness inspection monitoring device, including a support ring 1 and an ultrasonic thickness gauge. The bottom of the support ring 1 is provided with a rotatably connected annular guide rail 2. The outer wall of the support ring 1 is provided with a rotation drive assembly 3 for the annular guide rail 2. The top of the support ring 1 is vertically provided with a linear drive assembly 8. The bottom of the annular guide rail 2 is horizontally provided with a cylinder 4. The output end of the cylinder 4 is provided with a mounting plate 5 near the inner ring of the annular guide rail 2. The outer wall of the mounting plate 5 is provided with a mounting groove 7 that matches the probe 6 of the ultrasonic thickness gauge. The linear drive assembly 8... Component 8 includes two hydraulic cylinders, which are equipped with a synchronous control component to ensure that the two hydraulic cylinders work synchronously. The two hydraulic cylinders are parallel to each other, and the output end of the hydraulic cylinder is fixedly connected to the top of the support ring 1. The support ring 1 is movably sleeved on the outer wall of the boiler, and the hydraulic cylinder is fixedly connected to the top of the outer wall of the boiler through the mounting bracket 801. The rotary drive component 3 includes a servo motor 301 and a gear 302. The output shaft of the servo motor 301 is fixedly connected to the gear 302, and the outer wall of the annular guide rail 2 is provided with a rack 201 that meshes with the gear 302.

[0027] In one embodiment, a support plate 101 is provided on one side of the outer wall of the support ring 1. The output shaft of the servo motor 301 passes through the support plate 101 and is fixedly connected to the shaft of the gear 302. The support plate 101 supports the servo motor 301 on the outer wall of the support ring 1 to ensure the overhead support of the servo motor 301.

[0028] In one embodiment, the servo motor 301 is vertically mounted on the top of the support plate 101. The top of the support plate 101 has a through hole that matches the output shaft of the servo motor 301, ensuring the safety and stability of the rotational motion of the gear 302 driven by the servo motor 301. The through hole provides space for the output shaft of the servo motor 301 to pass through and rotate.

[0029] In one embodiment, the outer wall of the mounting plate 5 is provided with a connecting plate 501, the bottom of the annular guide rail 2 is provided with a guide rail 202, and the outer wall of the connecting plate 501 is provided with a slider 502 that matches the guide rail 202. The connecting plate 501 can support the mounting plate 5. The cooperation between the guide rail 202 and the slider 502 can effectively improve the safety and stability of the horizontal movement of the mounting plate 5, thereby improving the stability and safety of the movement adjustment of the probe 6 of the ultrasonic thickness gauge.

[0030] In one embodiment, the guide rail 202 is parallel to the cylinder 4, ensuring that the guide rail 202 guides the cylinder 4's extension and retraction movements normally and preventing the mounting plate 5 from shifting. The length of the connecting plate 501 is greater than the maximum stroke of the cylinder 4. Two guide rails 202 are provided, arranged in parallel. Two sliders 502 are slidably provided on the outer wall of the guide rail 202, and the two sliders 502 are respectively located at both ends of the outer wall of the connecting plate 501. This ensures that during the extension and retraction of the cylinder 4, at least one slider 502 is always located on the guide rail 202 at the bottom of the connecting plate 501, effectively preventing the connecting plate 501 from completely separating from the guide rail 202, and effectively improving the safety and stability of the mounting plate 5.

[0031] The working principle of this utility model:

[0032] Refer to the instruction manual appendix Figures 1-4 This utility model comprises a support ring 1, an ultrasonic thickness gauge, an annular guide rail 2, a rotary drive assembly 3, a hydraulic cylinder, a pneumatic cylinder 4, and a mounting plate 5. The support ring 1 is fitted onto the outer wall of the boiler, and the hydraulic cylinder is fixed to the top of the outer wall of the boiler via a mounting bracket 801. The support ring 1 provides rotary support for the annular guide rail 2, allowing the annular guide rail 2 to rotate at the bottom of the support ring 1. The rotary drive assembly 3 drives the annular guide rail 2 to rotate. The extension and retraction of the hydraulic cylinder can drive the support ring 1 to move vertically, thereby driving the annular guide rail 2 to move vertically. The pneumatic cylinder 4 at the bottom of the annular guide rail 2 can drive the mounting plate 5 to move horizontally, thereby driving the probe 6 on the mounting plate 5 to adjust horizontally, thus adjusting the distance between the probe 6 and the outer wall of the boiler. The main body of the ultrasonic thickness gauge can be fixed on the annular guide rail 2 or mounted on other components.

[0033] In use, the adjustable hydraulic cylinder extends and retracts, driving the support ring 1 to rise and fall. The annular guide rail 2 rises and falls with the support ring 1. The cylinder 4, mounting plate 5, and probe 6 rise and fall with the annular guide rail 2. After the probe 6 moves to the appropriate position, the cylinder 4 extends and retracts, driving the mounting plate 5 to move horizontally, which in turn drives the probe 6 to move horizontally, allowing the probe 6 to adhere to and separate from the boiler outer wall surface. Coupling agent is then sprayed (the spraying of the coupling agent can be controlled separately and automatically sprayed onto the surface of the boiler to be tested), enabling the probe 6 to penetrate vertically on the boiler outer wall. Multi-point monitoring can effectively improve the multi-point monitoring effect on the boiler outer wall; the rotary drive component 3 drives the annular guide rail 2 to rotate, and the cylinder 4, mounting plate 5 and probe 6 rotate with the annular guide rail 2. After the probe 6 moves to the appropriate position, the cylinder 4 extends and retracts to make the probe 6 fit and separate from the surface of the boiler outer wall. Coupling agent is sprayed (the spraying of coupling agent can be controlled separately and automatically sprayed on the surface of the boiler to be tested), so that the probe 6 can perform multi-point monitoring at the horizontal annular position on the boiler outer wall, which can effectively improve the multi-point monitoring effect on the boiler outer wall.

[0034] While adjusting the hydraulic cylinder to extend and retract, it drives the annular guide rail 2 to rotate, so that the probe 6 can rotate while being raised and lowered. This enables the probe 6 to move in a two-way spiral motion on the outer wall of the boiler. The probe 6 can perform multi-point wall thickness monitoring on the two-way spiral line on the outer wall of the boiler, which can effectively improve the ease of operation of boiler wall thickness monitoring. At the same time, it can automatically monitor the wall thickness at different locations of the boiler, enabling inspection-style monitoring of the wall thickness of coal-fired boilers. This can effectively improve the comprehensiveness and accuracy of boiler wall thickness monitoring, and the equipment cost is not high.

[0035] When the rotary drive assembly 3 is working, the servo motor 301 drives the gear 302 to rotate, and the gear 302 drives the rack 201 on the outer wall of the annular guide rail 2 to mesh and transmit power, thereby driving the annular guide rail 2 to rotate.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A coal-fired boiler wall thickness inspection monitoring device, comprising a support ring (1) and an ultrasonic thickness gauge, characterized in that: The bottom of the support ring (1) is provided with a rotatably connected annular guide rail (2), the outer wall of the support ring (1) is provided with a rotation drive assembly (3) for the annular guide rail (2), the top of the support ring (1) is provided with a vertical linear drive assembly (8), the bottom of the annular guide rail (2) is provided with a cylinder (4), the output end of the cylinder (4) is provided with a mounting plate (5) near the inner ring of the annular guide rail (2), and the outer wall of the mounting plate (5) is provided with a mounting groove (7) that matches the probe (6) of the ultrasonic thickness gauge.

2. The coal-fired boiler wall thickness inspection monitoring device according to claim 1, characterized in that: The linear drive assembly (8) is one of a hydraulic cylinder, an electric slide, or a linear motor.

3. The coal-fired boiler wall thickness inspection monitoring device according to claim 2, characterized in that: The linear drive assembly (8) includes several hydraulic cylinders, which are fixedly connected to the top of the boiler outer wall via a mounting bracket (801), and the support ring (1) is movably sleeved on the boiler outer wall.

4. The coal-fired boiler wall thickness inspection monitoring device according to claim 3, characterized in that: Two hydraulic cylinders are provided, which are parallel to each other, and the output end of the hydraulic cylinder is fixedly connected to the top of the support ring (1).

5. The coal-fired boiler wall thickness inspection monitoring device according to claim 1, characterized in that: The rotary drive assembly (3) includes a servo motor (301) and a gear (302). The output shaft of the servo motor (301) is fixedly connected to the gear (302). The outer wall of the annular guide rail (2) is provided with a rack (201) that meshes with the gear (302).

6. The coal-fired boiler wall thickness inspection monitoring device according to claim 5, characterized in that: The outer wall of the support ring (1) is provided with a support plate (101), and the output shaft of the servo motor (301) passes through the support plate (101) and is fixedly connected to the shaft of the gear (302).

7. The coal-fired boiler wall thickness inspection monitoring device according to claim 6, characterized in that: The servo motor (301) is vertically mounted on the top of the support plate (101), and the top of the support plate (101) has a through hole that matches the output shaft of the servo motor (301).

8. The coal-fired boiler wall thickness inspection monitoring device according to claim 1, characterized in that: The mounting plate (5) has a horizontal connecting plate (501) on its outer wall, and the bottom of the annular guide rail (2) has several horizontal guide rails (202). The outer wall of the connecting plate (501) has several sliders (502) that match the guide rails (202).

9. A coal-fired boiler wall thickness inspection monitoring device according to claim 8, characterized in that: The guide rail (202) is parallel to the cylinder (4), and the length of the connecting plate (501) is greater than the maximum stroke of the cylinder (4).

10. A coal-fired boiler wall thickness inspection monitoring device according to claim 9, characterized in that: Two guide rails (202) are provided, and the two guide rails (202) are arranged in parallel. Two sliders (502) are slidably provided on the outer wall of the guide rails (202), and the two sliders (502) are respectively located at both ends of the outer wall of the connecting plate (501).

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