Abrasion-proof and explosion-proof monitoring device for boiler

Abstract

The utility model discloses an anti-abrasion and anti-explosion monitoring device for a boiler, relates to the technical field of anti-abrasion and anti-explosion monitoring for boilers, and aims to solve the technical problems that the monitoring point position of an ultrasonic probe in the existing anti-abrasion and anti-explosion monitoring device for the boiler is single, the thickness of the wall of a water-cooled pipe is easy to monitor inaccurately, and the erroneous judgment of personnel on the abrasion of the wall of the water-cooled pipe is influenced. Comprising a main machine and a boiler water cooling pipe, the top and the bottom of the boiler water cooling pipe are sleeved with T-shaped mounting bases, a vertical rod is movably arranged between the two T-shaped mounting bases, a plurality of ultrasonic probes are arranged on the side, facing the boiler water cooling pipe, of the vertical rod at equal intervals, and the ultrasonic probes are connected with the main machine through wires; an ultrasonic probe is arranged on the vertical rod, the ultrasonic probe is in contact with the surface of the boiler water cooling pipe, L-shaped buckling rods are arranged at the two ends of the side, facing the boiler water cooling pipe, of the vertical rod, the L-shaped buckling rods are inserted into the T-shaped mounting bases, and driving structures are arranged at the bottom ends of the L-shaped buckling rods. The device has the advantage that the thickness of the pipe wall of the boiler water-cooling pipe can be detected more accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler anti-abrasion and explosion-proof monitoring, and more specifically, to a boiler anti-abrasion and explosion-proof monitoring device. Background Technique

[0002] As an essential device in industrial production, the boiler needs to meet the usage conditions of high temperature and high pressure during long-term operation, and thus is easily affected by factors such as abrasion and explosion, bringing certain potential safety hazards to production safety. Through research, it is found that more than 60% of the unexpected accidents in thermal power plants are caused by the wear of the boiler water wall tubes, resulting in tube burst phenomena. Tube burst will not only directly lead to the shutdown of the boiler, threatening the safe operation of the power grid, but also cause economic losses. Therefore, in order to prevent the occurrence of tube burst phenomena in the boiler water wall tubes, it is necessary to monitor the anti-abrasion and explosion-proof of the boiler water wall tubes. At this time, a boiler anti-abrasion and explosion-proof monitoring device, that is, an ultrasonic monitoring device, is required, which mainly consists of a host and several groups of ultrasonic probes. According to the current regulations, an ultrasonic probe is set on the water wall tube wall every 500 mm to monitor the wall thickness of the water wall tube, and then judge its abrasion according to the wall thickness of the water wall tube wall. Therefore, when the inner wall thickness after the wear of the water wall tube is less than the set value, the personnel can be informed in time for timely replacement, thus avoiding the occurrence of tube burst phenomena in the boiler.

[0003] The ultrasonic probes on the existing boiler anti-abrasion and explosion-proof monitoring devices are usually fixedly installed on the water wall tube wall. The monitoring orientation of a single ultrasonic probe is relatively single, which easily leads to inaccurate measurement of the thickness at that place of the water wall tube, thus affecting the accuracy of the result and causing misjudgment of the wear of the water wall tube by the personnel. In view of this, we propose a boiler anti-abrasion and explosion-proof monitoring device. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a boiler anti-abrasion and explosion-proof monitoring device to solve the technical problem that the monitoring points of the ultrasonic probes in the current boiler anti-abrasion and explosion-proof monitoring device are single, which easily causes inaccurate monitoring of the water wall tube wall thickness and affects the misjudgment of the wear of the water wall tube by the personnel.

[0005] To solve the above technical problems, the present utility model provides the following technical solution: A boiler anti-abrasion and explosion-proof monitoring device, including a host and boiler water-cooled pipes. T-shaped mounting seats are sleeved on the top and bottom of the boiler water-cooled pipes, and a vertical rod is movably arranged between the two groups of T-shaped mounting seats. A number of ultrasonic probes are equidistantly arranged on one side of the vertical rod facing the boiler water-cooled pipe. The ultrasonic probes are connected to the host through wires and are in contact with the surface of the boiler water-cooled pipe. L-shaped fastening rods are arranged at both ends of the vertical rod on the side facing the boiler water-cooled pipe, and the L-shaped fastening rods are inserted into the T-shaped mounting seats. A driving structure is arranged at the bottom end of the L-shaped fastening rod;

[0006] A spiral guiding groove is formed on the surface of the T-shaped mounting seat. At both ends of the vertical rod on the side facing the boiler water-cooled pipe, there are matching ends corresponding to the spiral guiding groove, and one end of the matching end extends into the spiral guiding groove.

[0007] Through structures such as the T-shaped mounting seat, vertical rod, L-shaped fastening rod, and driving structure designed on the boiler water-cooled pipe of the present utility model, the ultrasonic probes are arranged on the vertical rod. Therefore, when monitoring the wall thickness of the boiler water-cooled pipe, the driving structure can drive the vertical rod to rotate on the T-shaped mounting seat, and then the ultrasonic probes on the vertical rod can move around the boiler water-cooled pipe for one week, so that the thickness of the boiler water-cooled pipe can be detected multiple times in multiple directions, and thus the accurate value of the wall thickness of the boiler water-cooled pipe can be obtained. Therefore, personnel can accurately judge the abrasion of the boiler water-cooled pipe at each ultrasonic probe through comparison of multiple groups of data, avoiding the situation that the personnel's judgment of the abrasion of the boiler water-cooled pipe is inaccurate due to inaccurate thickness detection data. When the driving structure drives the vertical rod to rotate, under the cooperation of the spiral guiding groove and the matching end, the vertical rod will rotate in a spiral upward manner. Therefore, the ultrasonic probes on the vertical rod can detect the wall thickness of the boiler water-cooled pipe in a larger range of positions, facilitating personnel to further judge the abrasion of the boiler water-cooled pipe according to the detection data.

[0008] Preferably, three connecting rods are equidistantly arranged around the inner bottom of the T-shaped mounting seat, and one end of each connecting rod is connected to the boiler water-cooled pipe.

[0009] Preferably, the driving structure includes a motor, which is arranged at the bottom end of the L-shaped fastening rod, and a gear disk is arranged on the rotating shaft of the bottom output end of the motor.

[0010] Preferably, a tooth groove is formed on the inner wall of the T-shaped mounting seat, and the gear disk meshes with the tooth groove, and the height of the tooth groove is matched with the height of the spiral guiding groove.

[0011] Preferably, the side of the L-shaped fastening rod facing the inner wall of the T-shaped mounting seat is arc-shaped, and the arc surface of the L-shaped fastening rod is closely attached to the inner wall of the T-shaped mounting seat.

[0012] Preferably, a semi-sphere is rotatably arranged at one end of the mating end head, and the semi-sphere is located inside the spiral guide groove.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through structures such as the T-shaped mounting seat, vertical rod, L-shaped fastening rod, and driving structure designed on the boiler water-cooled pipe of the present utility model, with the ultrasonic probe arranged on the vertical rod, when monitoring the wall thickness of the boiler water-cooled pipe, the driving structure can drive the vertical rod to rotate on the T-shaped mounting seat, and then the ultrasonic probe on the vertical rod can move around the boiler water-cooled pipe for one week. Thus, the thickness of the boiler water-cooled pipe can be detected multiple times in multiple directions, and the accurate value of the wall thickness of the boiler water-cooled pipe can be obtained. Therefore, personnel can accurately judge the wear of the boiler water-cooled pipe at each ultrasonic probe through comparison of multiple groups of data, avoiding the situation where the wear judgment of the boiler water-cooled pipe by personnel is inaccurate due to inaccurate thickness detection data. This solves the technical problem that the monitoring point of the ultrasonic probe in the current boiler anti-wear and explosion-proof monitoring device is single, which easily causes inaccurate monitoring of the wall thickness of the water-cooled pipe and affects the misjudgment of the wear of the water-cooled pipe wall by personnel. Therefore, the present utility model has the advantage of more accurate detection of the wall thickness of the boiler water-cooled pipe.

[0015] 2. The present utility model also sets a spiral guide groove structure on the T-shaped mounting seat and a mating end head on the vertical rod, with the mating end head extending into the spiral guide groove. Therefore, when the driving structure drives the vertical rod to rotate, under the cooperation of the spiral guide groove and the mating end head, the vertical rod will rotate in a spiral ascending manner. Thus, the ultrasonic probe on the vertical rod can detect the wall thickness at a larger range of positions of the boiler water-cooled pipe, facilitating personnel to further judge the wear of the boiler water-cooled pipe based on the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is an installation schematic diagram of the boiler water-cooled pipe, T-shaped mounting seat, and vertical rod of the present utility model;

[0018] Figure 3 is a schematic diagram of the structure of the L-shaped fastening rod of the present utility model;

[0019] Figure 4 is a schematic diagram of the structure of the T-shaped mounting seat of the present utility model;

[0020] Figure 5 is a schematic diagram of the structure of the vertical rod of the present utility model.

[0021] Explanation of the reference numerals in the drawings:

[0022] 1. Main unit; 101. Ultrasonic probe; 2. Boiler water-cooled pipe; 3. T-shaped mounting seat; 301. Connecting rod; 4. Vertical rod; 5. L-shaped fastening rod; 6. Driving structure; 601. Motor; 602. Gear disc; 603. Tooth groove; 7. Spiral guide groove; 8. Fitting end. Detailed implementation manner

[0023] As Figures 1 to 5 shown, a boiler anti-abrasion and explosion-proof monitoring device related to the present utility model includes a main unit 1 and a boiler water-cooled pipe 2. T-shaped mounting seats 3 are sleeved on the top and bottom of the boiler water-cooled pipe 2, and a vertical rod 4 is movably arranged between the two groups of T-shaped mounting seats 3. A plurality of groups of ultrasonic probes 101 are equidistantly arranged on one side of the vertical rod 4 facing the boiler water-cooled pipe 2. The ultrasonic probes 101 are connected to the main unit 1 through wires, and the ultrasonic probes 101 are in contact with the surface of the boiler water-cooled pipe 2. L-shaped fastening rods 5 are arranged at both ends of the vertical rod 4 on the side facing the boiler water-cooled pipe 2. The L-shaped fastening rods 5 are inserted into the T-shaped mounting seats 3. A driving structure 6 is arranged at the bottom end of the L-shaped fastening rod 5. When monitoring the wall thickness of the boiler water-cooled pipe 2, the driving structure 6 can drive the vertical rod 4 to rotate on the T-shaped mounting seat 3, and then the ultrasonic probes 101 on the vertical rod 4 can move around the boiler water-cooled pipe 2 for one week, so that the thickness of the boiler water-cooled pipe 2 can be detected multiple times in multiple directions, and thus the accurate value of the wall thickness of the boiler water-cooled pipe 2 can be obtained and the value can be transmitted to the main unit 1 for easy viewing by personnel. Therefore, personnel can accurately judge the abrasion of the boiler water-cooled pipe 2 at each ultrasonic probe 101 through comparison of multiple groups of data, avoiding the situation that the abrasion judgment of the boiler water-cooled pipe 2 by personnel is inaccurate due to inaccurate thickness detection data.

[0024] Specifically, three groups of connecting rods 301 are equidistantly arranged around the inner bottom of the T-shaped mounting seat 3. One end of the connecting rod 301 is connected to the boiler water-cooled pipe 2, and the connecting rod 301 facilitates the fixed installation of the T-shaped mounting seat 3 and the boiler water-cooled pipe 2.

[0025] Furthermore, the driving structure 6 includes a motor 601. The motor 601 is arranged at the bottom end of the L-shaped fastening rod 5, and a gear disc 602 is arranged on the rotating shaft of the bottom output end of the motor 601; a tooth groove 603 is formed on the inner wall of the T-shaped mounting seat 3, and the gear disc 602 meshes with the tooth groove 603, and the height of the tooth groove 603 matches the height of the spiral guide groove 7. The motor 601 can drive the gear disc 602 to rotate, and then the gear disc 602 cooperates with the tooth groove 603 to drive the driving structure 6, the L-shaped fastening rod 5 and the vertical rod 4 to rotate.

[0026] Furthermore, the side of the L-shaped fastening rod 5 facing the inner wall of the T-shaped mounting seat 3 is arc-shaped, and the arc surface of the L-shaped fastening rod 5 is in close contact with the inner wall of the T-shaped mounting seat 3. The fitting of the arc of the L-shaped fastening rod 5 with the inner wall of the T-shaped mounting seat 3 can provide a better limiting effect on the vertical rod 4.

[0027] In an embodiment of the present invention, a spiral guide groove 7 is provided on the surface of the T-shaped mounting seat 3. At both ends of the vertical rod 4 facing the boiler water-cooled pipe 2, there are mating ends 8 corresponding to the spiral guide groove 7, and one end of the mating end 8 extends into the spiral guide groove 7. When the driving structure 6 drives the vertical rod 4 to rotate, under the cooperation of the spiral guide groove 7 and the mating end 8, the vertical rod 4 will rotate in a spiral upward manner. Therefore, the ultrasonic probe 101 on the vertical rod 4 can perform wall thickness detection on a larger range of positions of the boiler water-cooled pipe 2, so as to facilitate personnel to further judge the wear of the boiler water-cooled pipe 2 according to the detection data.

[0028] Specifically, a semi-sphere is rotatably arranged at one end of the mating end 8, and the semi-sphere is located inside the spiral guide groove 7. The rotationally arranged semi-sphere facilitates the movement of the mating end 8 along the spiral guide groove 7 better.

[0029] Working principle: This embodiment provides a boiler anti-wear and explosion-proof monitoring device. First, when monitoring the wall thickness of the boiler water-cooled pipe 2, the driving structure 6 can drive the vertical rod 4 to rotate on the T-shaped mounting seat 3. Then, the ultrasonic probe 101 on the vertical rod 4 can move around the boiler water-cooled pipe 2 for one week, so that the thickness of the boiler water-cooled pipe 2 can be detected multiple times in multiple directions, and thus the accurate value of the wall thickness of the boiler water-cooled pipe 2 can be obtained and the value can be transmitted to the host 1 for easy viewing by personnel. Therefore, personnel can accurately judge the wear of the boiler water-cooled pipe 2 at each ultrasonic probe 101 through comparison of multiple groups of data, avoiding the situation that the wear judgment of the boiler water-cooled pipe 2 by personnel is inaccurate due to inaccurate thickness detection data.

[0030] Secondly, when the driving structure 6 drives the vertical rod 4 to rotate, under the cooperation of the spiral guide groove 7 and the mating end 8, the vertical rod 4 will rotate in a spiral upward manner. Therefore, the ultrasonic probe 101 on the vertical rod 4 can perform wall thickness detection on a larger range of positions of the boiler water-cooled pipe 2, so as to facilitate personnel to further judge the wear of the boiler water-cooled pipe 2 according to the detection data.

[0031] The embodiments disclosed in the embodiments of the present invention are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes, but as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A boiler anti-wear and explosion-proof monitoring device, characterized in that: The invention comprises a main machine (1) and a boiler water cooling pipe (2), wherein the top and bottom of the boiler water cooling pipe (2) are provided with a T-shaped mounting seat (3), and a vertical rod (4) is movably arranged between two groups of T-shaped mounting seats (3), and a plurality of groups of ultrasonic probes (101) are equidistantly arranged on the vertical rod (4) facing one side of the boiler water cooling pipe (2), and the ultrasonic probes (101) are connected to the main machine (1) through a wire, and the ultrasonic probes (101) are in contact with the surface of the boiler water cooling pipe (2), and L-shaped buckling rods (5) are arranged at both ends of the vertical rod (4) facing one side of the boiler water cooling pipe (2), and the L-shaped buckling rods (5) are inserted into the T-shaped mounting seat (3), and a driving structure (6) is arranged at the bottom end of the L-shaped buckling rod (5); A circle of spiral guide grooves (7) are provided on the surface of the T-shaped mounting seat (3), and matching end heads (8) corresponding to the spiral guide grooves (7) are arranged at both ends of the vertical rod (4) facing the boiler water cooling tube (2), and one end of the matching end head (8) extends into the interior of the spiral guide groove (7).

2. A boiler anti-wear and explosion-proof monitoring device according to claim 1, characterized in that: Three groups of connecting rods (301) are arranged equidistantly around the inner bottom of the T-shaped mounting seat (3), and one end of the connecting rod (301) is connected to the boiler water cooling pipe (2).

3. A boiler anti-wear and explosion-proof monitoring device according to claim 1, characterized in that: The driving structure (6) comprises a motor (601), the motor (601) is arranged at the bottom end of the L-shaped buckling rod (5), and a gear plate (602) is arranged on the rotating shaft at the bottom output end of the motor (601).

4. A boiler anti-wear and explosion-proof monitoring device according to claim 3, characterized in that: The inner wall of the T-shaped mounting seat (3) is provided with a tooth groove (603), and the gear plate (602) is meshed with the tooth groove (603), and the height of the tooth groove (603) matches the height of the spiral guide groove (7).

5. The boiler anti-wear and explosion-proof monitoring device according to claim 1 is characterized in that: The L-shaped buckling rod (5) is arc-shaped on one side facing the inner wall of the T-shaped mounting seat (3), and the arc-shaped surface of the L-shaped buckling rod (5) is in close contact with the inner wall of the T-shaped mounting seat (3).

6. A boiler anti-wear and explosion-proof monitoring device according to claim 1, characterized in that: A semi-spherical body is rotatably arranged at one end of the mating end head (8), and the semi-spherical body is located inside the spiral guide groove (7).

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