Boiler inner wall surface crack detection device

Abstract

This utility model discloses a boiler inner wall surface crack detection device, belonging to the field of boiler container safety inspection technology. The device includes a support mechanism that passes through and is movably connected to an adjustment mechanism. A detection mechanism is fixedly installed at the lower end of the adjustment mechanism. The detection mechanism includes a first motor, the lower end of which is connected to a connecting shaft. A housing is fixedly connected to the lower end of the connecting shaft. A second motor is installed inside the housing. A transmission wheel assembly is connected to the front end of the second motor. A rotating shaft is connected through the inner end of the transmission wheel assembly. Connecting arms are fixedly connected to the left and right ends of the rotating shaft. A working box is fixedly connected to the lower end of the connecting arms. A detection head is fixedly connected to the lower end of the working box. This boiler inner wall surface crack detection device uses a second motor to adjust the angle of the detection head. The rotation of the first motor causes the detection head to perform a fan-shaped detection, improving the comprehensiveness and convenience of the device during inspection.

Description

Technical Field

[0001] This utility model relates to the field of safety inspection technology for boiler containers, and in particular to a device for detecting cracks on the inner wall surface of a boiler. Background Technology

[0002] Boilers, as crucial equipment for converting the heat energy of fuel or other energy sources into hot water or steam, are widely used in industrial production and daily life, and their safe operation is paramount. Because boilers operate in a sealed state during energy conversion, their inner walls are subjected to extreme environments such as high temperature and high pressure over long periods, making them prone to developing micro-cracks. If these cracks are not detected and repaired in time, they may lead to sidewall ruptures, causing equipment damage, or leaks of high-temperature, high-pressure gases, endangering personal safety. Furthermore, due to the energy conversion requirements, boiler pressure vessels are typically large in size, while the cracks on the inner walls are relatively small. Manual inspection is not only time-consuming, labor-intensive, and inefficient, but also prone to oversights. Existing technologies, such as the detection devices disclosed in some patents, can achieve a certain degree of detection functionality, but they have many limitations.

[0003] Existing boiler inner wall surface crack detection devices lack adjustment mechanisms, requiring manual adjustment of the detection head's angle and position during detection. However, in practical use, this adjustment method disrupts the original detection sequence, making it difficult to continue from the previous detection position after adjustment, which can easily lead to missed detection areas. Furthermore, it is not convenient to use. Therefore, we propose a boiler inner wall surface crack detection device. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a device for detecting cracks on the inner wall surface of a boiler. By setting a motor to automatically adjust the angle of the detection head and performing fan-shaped detection by rotation, the detection area is ensured to cover the entire inner wall of the boiler, thereby improving the comprehensiveness and convenience of the device during detection.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A boiler inner wall surface crack detection device includes a support mechanism, which passes through and is movably connected to an adjustment mechanism, and the detection mechanism is fixedly installed at the lower end of the adjustment mechanism.

[0007] The detection mechanism includes a first motor, the lower end of which is connected to a connecting shaft. The lower end of the connecting shaft is fixedly connected to a housing. A second motor is installed inside the housing. The front end of the second motor is connected to a transmission wheel assembly. A rotating shaft is connected through the inner end of the transmission wheel assembly. Connecting arms are fixedly connected to the left and right ends of the rotating shaft. A working box is fixedly connected to the lower end of the connecting arms. A detection head is fixedly connected to the lower end of the working box. By setting the second motor to automatically adjust the angle of the detection head, and by rotating the first motor to make the detection head perform fan-shaped detection, the detection area is ensured to cover the entire inner wall of the boiler, improving the comprehensiveness and convenience of the device during detection.

[0008] Furthermore, the adjustment mechanism includes an adjustment block, a connecting block is provided at the lower center of the adjustment block, and a pin hole is provided on the upper side of the adjustment block. A second pin is movably installed at the inner end of the pin hole. By setting the pin hole and the second pin, the position of the adjustment block is fixed, making the adjustment work more convenient and improving the ease of use of the device.

[0009] Furthermore, the support mechanism includes a support rod with a limiting hole at its upper end. Extension arms are movably nested at both ends of the support rod. A limiting block is provided on the lower side of the extension arm. A pin hole is fixedly installed in the middle of the upper end of the extension arm, and a pin is movably installed in the inner end of the pin hole. By setting the extension arm, the device can test boilers of different diameters, improving the adaptability of the device during use.

[0010] Furthermore, the support rod passes through the adjustment block and is movably connected to it. By setting the adjustment block to adjust the overall position, the detection area of ​​the detection head is made wider, and the comprehensiveness of the device's detection work is improved.

[0011] Furthermore, the motor is fixedly installed at the lower end of the connecting block and the connection method is bolt connection.

[0012] Furthermore, the second pin hole and the limiting hole are the same size and corresponding in position.

[0013] Furthermore, both pin two and pin one can be inserted into the limiting hole.

[0014] Furthermore, the connecting arm can be rotated via a pivot.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. By setting motor two to automatically adjust the angle of the detection head, and by rotating motor one to make the detection head perform fan-shaped detection, the detection area is ensured to cover the entire inner wall of the boiler, which improves the comprehensiveness and convenience of the device during detection. By setting pin hole two and pin two to fix the position of the adjustment block, the adjustment work is more convenient and the convenience of the device during use is improved.

[0017] 2. By setting an extension arm, the device can detect boilers of different diameters, improving its adaptability during use. By setting an adjustment block to adjust the overall position, the detection area of ​​the detection head is made wider, enhancing the comprehensiveness of the device's detection work. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0019] Figure 2 This is a three-dimensional structural diagram of the support mechanism in this embodiment;

[0020] Figure 3 This is a three-dimensional structural diagram of the adjustment mechanism in this embodiment;

[0021] Figure 4 This is a three-dimensional structural diagram of the detection mechanism in this embodiment;

[0022] Figure 5 This is a partial three-dimensional structural diagram of the detection mechanism in this embodiment.

[0023] In the diagram, 1. Support mechanism; 101. Support rod; 102. Limiting hole; 103. Extension arm; 104. Limiting block; 105. Pin hole one; 106. Pin one; 2. Adjustment mechanism; 201. Adjustment block; 202. Connecting block; 203. Pin hole two; 204. Pin two; 3. Detection mechanism; 301. Motor one; 302. Connecting shaft; 303. Chassis; 304. Motor two; 305. Transmission wheel set; 306. Rotating shaft; 307. Connecting arm; 308. Working box; 309. Detection head. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0026] Reference Figure 1-5 As shown, the boiler inner wall surface crack detection device in a preferred embodiment of the present invention includes a support mechanism 1, which passes through and is movably connected to the adjustment mechanism 2, and a detection mechanism 3 is fixedly installed at the lower end of the adjustment mechanism 2.

[0027] The testing mechanism 3 includes a first motor 301, with a connecting shaft 302 connected to the lower end of the first motor 301. A housing 303 is fixedly connected to the lower end of the connecting shaft 302. A second motor 304 is located inside the housing 303. A transmission wheel set 305 is connected to the front end of the second motor 304. A rotating shaft 306 is connected through the inner end of the transmission wheel set 305. Connecting arms 307 are fixedly connected to both ends of the rotating shaft 306. A working box 308 is fixedly connected to the lower end of the connecting arms 307. A testing head 309 is fixedly connected to the lower end of the working box 308. The first motor 301 is fixedly mounted on the connecting block 202. The lower end is connected by bolts. The connecting arm 307 can be rotated via the rotating shaft 306. By setting the connecting arm 307 to be able to rotate via the rotating shaft 306, the position of the detection head 309 can be adjusted, allowing it to adjust the distance from the inner wall of the boiler during operation, enabling more detailed inspection and improving the accuracy of the device during inspection. By setting motor 2 304 to automatically adjust the angle of the detection head 309, and by rotating motor 1 301 to make the detection head 309 perform fan-shaped inspection, it is ensured that the inspection area covers the entire inner wall of the boiler, improving the comprehensiveness and convenience of the device during inspection.

[0028] Reference Figure 1-3 As shown, the adjustment mechanism 2 includes an adjustment block 201. A connecting block 202 is provided at the lower middle part of the adjustment block 201. A pin hole 203 is provided on the upper side of the adjustment block 201. A pin 204 is movably installed at the inner end of the pin hole 203. The pin hole 203 and the limiting hole 102 are the same size and corresponding in position. Both the pin 204 and the pin 106 can be inserted into the limiting hole 102. By setting the pin hole 203 and the pin 204, the position of the adjustment block 201 is fixed, making the adjustment work more convenient and improving the convenience of using the device.

[0029] Reference Figure 1-2 As shown, the support mechanism 1 includes a support rod 101. The upper end of the support rod 101 is provided with a limiting hole 102. The left and right ends of the support rod 101 are movably nested with extension arms 103. The lower side of the extension arm 103 is provided with a limiting block 104. The upper middle part of the extension arm 103 is fixedly installed with a pin hole 105. The inner end of the pin hole 105 is movably installed with a pin 106. By setting the extension arm 103, the device can test boilers of different diameters, improving the adaptability of the device during use.

[0030] Reference Figure 2-5 As shown, the support rod 101 passes through the adjustment block 201 and is movably connected to it. By setting the adjustment block 201, the overall position can be adjusted, making the detection area of ​​the detection head 309 more extensive and improving the comprehensiveness of the device's detection work.

[0031] Specific implementation process: According to the boiler diameter, pull the extension arm 103 to extend or retract it to match the boiler size. Then, insert the first pin 106 into the corresponding limiting hole 102 and pin hole 105 to fix the position of the extension arm 103, ensuring that the device is stably placed on the boiler. Loosen the second pin 204 in the adjustment mechanism and move the adjustment block 201 left and right along the support rod 101 to drive the overall adjustment of the detection area. When the appropriate position is reached, insert the second pin 204 into the corresponding pin hole 203 and limiting hole 102 to fix it. Adjusting block 201 completes the initial setting of the overall position. Motor 2 304 of the detection mechanism is then started. Motor 2 304 drives the transmission wheel set 305 to rotate, causing the rotating shaft 306 to rotate. The connecting arm 307 rotates with the rotating shaft 306, thereby adjusting the distance between the detection head 309 at the lower end of the working box 308 and the inner wall of the boiler, ensuring that the detection head 309 is at the optimal detection distance. Motor 1 301 is then started. Motor 1 301 drives the housing 303 and the structure below to rotate via the connecting shaft 302, causing the detection head 309 to perform a fan-shaped scan. Simultaneously, the rotation angle of the connecting arm 307 can be adjusted again via motor 2 304 to change the position of the detection head 309, ensuring that the detection range covers the entire inner wall of the boiler. During the detection process, the detection head 309 continuously collects crack data of the boiler's inner wall, and this data is sent to the data processing equipment in real time via an external data transmission device. The data processing equipment analyzes and processes the received raw data, identifies the location and size of cracks, and finally transmits the processing results to the display device to present them to the operator in an intuitive way, such as images or data tables, thus completing the entire inspection work.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting cracks on the inner wall surface of a boiler, characterized in that: It includes a support mechanism (1), which passes through and is movably connected to the adjustment mechanism (2), and a detection mechanism (3) is fixedly installed at the lower end of the adjustment mechanism (2). The detection mechanism (3) includes a motor (301), the lower end of which is connected to a connecting shaft (302), the lower end of which is fixedly connected to a housing (303), the inner end of which is provided with a motor (304), the front end of which is connected to a transmission wheel set (305), the inner end of which is connected to a rotating shaft (306), the left and right ends of which are fixedly connected to a connecting arm (307), the lower end of which is fixedly connected to a working box (308), and the lower end of which is fixedly connected to a detection head (309).

2. The boiler inner wall surface crack detection device according to claim 1, characterized in that: The adjustment mechanism (2) includes an adjustment block (201), a connecting block (202) is provided at the lower middle part of the adjustment block (201), and a pin hole (203) is provided on the upper side of the adjustment block (201). A second pin (204) is movably installed at the inner end of the pin hole (203).

3. The boiler inner wall surface crack detection device according to claim 2, characterized in that: The support mechanism (1) includes a support rod (101), the upper end of the support rod (101) is provided with a limiting hole (102), the left and right ends of the support rod (101) are movably nested with extension arms (103), the lower end of the extension arm (103) is provided with a limiting block (104), the upper middle part of the extension arm (103) is fixedly installed with a pin hole (105), and the inner end of the pin hole (105) is movably installed with a pin (106).

4. The boiler inner wall surface crack detection device according to claim 3, characterized in that: The support rod (101) passes through the adjusting block (201) and is movably connected to it.

5. The boiler inner wall surface crack detection device according to claim 2, characterized in that: The motor (301) is fixedly installed at the lower end of the connecting block (202) and is connected by bolts.

6. The boiler inner wall surface crack detection device according to claim 3, characterized in that: The pin hole (203) is the same size as the limiting hole (102) and their positions are corresponding.

7. The boiler inner wall surface crack detection device according to claim 3, characterized in that: Both the second pin (204) and the first pin (106) can be inserted into the limiting hole (102).

8. The boiler inner wall surface crack detection device according to claim 1, characterized in that: The connecting arm (307) can be rotated via the pivot (306).

Images