Boiler inspection device

Abstract

The utility model discloses a boiler inspection device, which relates to the technical field of inspection devices and comprises a base, sliding tables are fixedly connected to the left side and the right side of the top of the base, a roll shaft is rotatably connected to the front side between the two sliding tables, a rotating assembly is arranged between the two sliding tables and on the rear side of the roll shaft, and a lifting assembly is arranged on the top of the base and on the rear side of the rotating assembly. The lifting assembly comprises a supporting block fixedly connected to the top of the base, a first notch is formed in the middle of the front side of the supporting block, sliding rails are fixedly connected to the front side of the supporting block and the left side and the right side of the first notch, limiting blocks are fixedly connected to the upper ends and the lower ends of the two sliding rails, moving blocks are slidably connected to the surfaces of the two sliding rails, and a detection assembly is arranged on the front sides of the moving blocks. The device has the advantages that compared with a knocking mode, gas is injected into the boiler, whether gas leakage points exist in all parts of the boiler or not can be comprehensively detected, and the conditions include tiny gas leakage points and insufficient local pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection devices, in particular to a boiler inspection device. Background Art

[0002] Boiler is a kind of energy conversion equipment. The energy input to the boiler is in the form of chemical energy in the fuel, electrical energy, thermal energy of high-temperature flue gas, etc. After conversion by the boiler, it outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. It is mostly used in thermal power plants, ships, locomotives and industrial and mining enterprises. During the regular inspection of high-temperature boilers, it is necessary to use a hammer to knock on various parts. This is one of the basic methods for checking boilers. According to the elastic force of the small hammer, the sound and vibration, the metal defects, cracks, looseness and severe corrosion of the boiler and the quality of the weld can be correctly judged.

[0003] For example, a boiler detection device disclosed in Chinese patent (CN202321220026.8) includes a base plate, a mounting plate is welded on the top of the base plate, the number of mounting plates is two groups and they are arranged in parallel, a fixed clamp is welded on the top of the mounting plate, a controller is fixedly installed on the top of the base plate on one side of the mounting plate, a pressurized pipe is rotatably installed on the top of the controller, and movable grooves are provided on the fixed clamp, the number of movable grooves is several groups and they are arranged equidistantly. The utility model directly connects the pressurized pipe and the controller to the boiler for pressurization, so that the device can directly perform pressurized airtightness detection operation, and there is no need to set up an independent airtight chamber, which improves the detection efficiency to a certain extent. At the same time, the coordinated use of the movable clamp and the fixed clamp can effectively ensure the placement stability of the boiler during detection, greatly improving the practicality of the device.

[0004] The air tightness of the boiler needs to be inspected after it leaves the factory. Since small boilers have different models and the heights of different models of boilers are different, the above-mentioned inspection device needs to move the boiler between two movable clamps when inspecting the boiler. The clamps may not be firmly fixed at both ends of the boiler, causing the clamps to move or tilt during transportation. This may lead to inaccurate air tightness inspection results. Using clamps to fix the boiler may limit the flexibility of the inspection process. For example, it may be restricted when the boiler needs to be rotated or moved. At the same time, it is not convenient to adjust the height as needed, which may limit its applicability and fail to adapt to different specifications for effective inspection of boilers. The inconvenient height adjustment of the inspection device may affect the accuracy and reliability of the inspection. Utility Model Content

[0005] In order to solve the above technical problems, a boiler inspection device is provided, which solves the problem that when the above inspection device is used to inspect the boiler, the boiler needs to be moved between two movable clamps, and the clamps may not be firmly fixed at both ends of the boiler, causing the clamps to move or tilt during transportation. This may lead to inaccurate airtightness inspection results. Using clamps to fix the boiler may limit the flexibility of the inspection process. For example, it may be restricted when the boiler needs to be rotated or moved. At the same time, it is not convenient to adjust the height as needed, which may limit its applicability and make it impossible to adapt to boilers of different specifications for effective inspection. The inconvenient height adjustment of the inspection device may affect the accuracy and reliability of the inspection.

[0006] To achieve the above objectives, the technical solution adopted by the utility model is: a boiler inspection device, comprising a base, wherein slides are fixedly connected to the left and right sides of the top of the base, a roller is rotatably connected to the front side between the two slides, a rotating assembly is arranged between the two slides and on the rear side of the roller, a lifting assembly is arranged on the top of the base and on the rear side of the rotating assembly, the lifting assembly comprises a support block fixedly connected to the top of the base, a first notch is opened in the middle part of the front side of the support block, slide rails are fixedly connected to the front side of the support block and on the left and right sides of the first notch, limiting blocks are fixedly connected to the upper and lower ends of the two slide rails, moving blocks are slidably connected to the surfaces of the two slide rails, and a detection assembly is arranged on the front side of the moving block.

[0007] Preferably, the detection component includes a connecting block fixedly connected to the front side of the moving block, a second slot is opened at the bottom of the connecting block, a second screw rod is rotatably connected inside the second slot, a second threaded seat is threadedly connected to the surface of the second screw rod, a third motor is fixedly installed on the front side of the connecting block, and the output end of the third motor passes through the front side wall of the second slot and is fixedly connected to the front end of the second screw rod.

[0008] Preferably, a sealing cover is fixedly connected to the bottom of the second threaded seat, a sealing gasket is fixedly connected to the inner top wall of the sealing cover, and a pressure sensor is fixedly connected to the top of the inner wall of the sealing cover.

[0009] Preferably, an air pump is fixedly mounted on the top of the connecting block, a threaded pipe is fixedly connected to the output end of the air pump, and the end of the threaded pipe passes through the top of the sealing cover and extends to the inside of the sealing cover.

[0010] Preferably, a first screw rod is rotatably connected inside the first slot, a first threaded seat is threadedly connected to the surface of the first screw rod, the first threaded seat is fixedly connected to the moving block, a second motor is fixedly installed on the top of the support block, and the output end of the second motor passes through the top wall of the first slot and is fixedly connected to the upper end of the first screw rod.

[0011] Preferably, the rotating assembly includes a supporting sleeve fixedly connected to the top of the base, a first motor is fixedly installed on the top of the base and inside the supporting sleeve, and an output end of the first motor is fixedly connected to a driving gear.

[0012] Preferably, the rotating assembly further comprises a rotating column rotatably connected to the top of the base, a driven gear ring is fixedly connected to the outer periphery of the rotating column, the driven gear ring is meshed with the driving gear, and a rotating table is fixedly connected to the top of the rotating column.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] 1. The utility model is provided with a second motor to drive the first screw rod to rotate, and through the first threaded seat and the moving block, it can adapt to small boilers of different heights. The first motor drives the driving gear to rotate, and the driven gear ring drives the rotating table to rotate, thereby rotating the boiler. By rotating the boiler, the inspector does not need to walk around the boiler, and can more easily check various parts of the boiler, including the bottom, side and top, etc., so as to ensure a comprehensive inspection of the overall condition of the boiler to find potential leakage points or other problems, so that the inspection of the boiler is more comprehensive.

[0015] 2. The utility model injects gas into the interior of the boiler through an air pump and seals it with a sealing cover and a sealing gasket. The air tightness of the boiler can be determined by observing the data detected by the pressure sensor. It can comprehensively detect whether there are leaks in various parts of the boiler, including tiny leaks and local insufficient pressure. By injecting gas into the boiler and measuring the changes in the internal pressure, the air tightness of the boiler can be evaluated more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the rotating assembly in the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the lifting component in the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the detection component in the utility model.

[0020] The numbers in the figure are: 1, base; 2, slide; 3, roller; 4, rotating assembly; 401, support sleeve; 402, rotating column; 403, driven gear ring; 404, first motor; 405, driving gear; 406, rotating table; 5, lifting assembly; 501, support block; 502, first notch; 503, slide rail; 504, limit block; 505, first screw rod; 506, second motor; 507, first threaded seat; 508, moving block; 6, detection assembly; 601, connecting block; 602, second notch; 603, second screw rod; 604, third motor; 605, second threaded seat; 606, sealing cover; 607, sealing gasket; 608, pressure sensor; 609, air pump; 610, threaded pipe. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0022] Reference Figure 1-4 As shown, a boiler inspection device comprises a base 1, wherein slides 2 are fixedly connected to the left and right sides of the top of the base 1, a roller shaft 3 is rotatably connected to the front side between the two slides 2, a rotating assembly 4 is arranged between the two slides 2 and on the rear side of the roller shaft 3, a lifting assembly 5 is arranged on the top of the base 1 and on the rear side of the rotating assembly 4, the lifting assembly 5 comprises a supporting block 501 fixedly connected to the top of the base 1, a first notch 502 is opened in the middle of the front side of the supporting block 501, a slide rail 503 is fixedly connected to the front side of the supporting block 501 and on the left and right sides of the first notch 502, the upper and lower ends of the two slide rails 503 are fixedly connected to limiting blocks 504, the surfaces of the two slide rails 503 are slidably connected to moving blocks 508, a detection assembly 6 is arranged on the front side of the moving block 508, the arrangement of the roller shaft 3 can facilitate the transfer of the boiler to the rotating table 406, the roller shaft 3 and the rotating assembly 4 can be installed in a sunken manner, that is, flush with the ground, thereby reducing the labor intensity of the staff.

[0023] The detection component 6 includes a connecting block 601 which is fixedly connected to the front side of the moving block 508, a second slot 602 is provided at the bottom of the connecting block 601, a second screw rod 603 is rotatably connected inside the second slot 602, a second threaded seat 605 is threadedly connected to the surface of the second screw rod 603, a third motor 604 is fixedly installed on the front side of the connecting block 601, an output end of the third motor 604 passes through the front side wall of the second slot 602 and is fixedly connected to the front end of the second screw rod 603, and the second screw rod 603 is driven to rotate by the third motor 604, so that the sealing cover 606 can be moved forward and backward.

[0024] A sealing cover 606 is fixedly connected to the bottom of the second threaded seat 605, a sealing gasket 607 is fixedly connected to the inner top wall of the sealing cover 606, and a pressure sensor 608 is fixedly connected to the top of the inner wall of the sealing cover 606. The pressure sensor 608 is a miniature gas pressure sensor of model MIK-P300, which is used to detect the air pressure inside the boiler in real time, providing a basis for inspectors to judge the air tightness of the boiler.

[0025] An air pump 609 is fixedly installed on the top of the connecting block 601, and a threaded pipe 610 is fixedly connected to the output end of the air pump 609. The end of the threaded pipe 610 passes through the top of the sealing cover 606 and extends to the inside of the sealing cover 606. The air pump 609 can inject gas into the boiler through the threaded pipe 610.

[0026] A first screw rod 505 is rotatably connected inside the first slot 502, and a first threaded seat 507 is threadedly connected to the surface of the first screw rod 505. The first threaded seat 507 is fixedly connected to the moving block 508. A second motor 506 is fixedly installed on the top of the support block 501. The output end of the second motor 506 passes through the top wall of the first slot 502 and is fixedly connected to the upper end of the first screw rod 505. The first screw rod 505 is driven to rotate by the second motor 506, so that the detection component 6 can be moved up and down. When moving upward, space is reserved for the placement of the boiler. When moving downward, the sealing cover 606 is pressed above the boiler.

[0027] The rotating component 4 includes a supporting sleeve 401 fixedly connected to the top of the base 1, and a first motor 404 is fixedly installed on the top of the base 1 and inside the supporting sleeve 401. The output end of the first motor 404 is fixedly connected to a driving gear 405. The gear transmission method is adopted to achieve a self-locking function, and the gear transmission method will not slip, and the transmission accuracy is high.

[0028] The rotating assembly 4 also includes a rotating column 402 rotatably connected to the top of the base 1, a driven gear ring 403 is fixedly connected to the outer periphery of the rotating column 402, the driven gear ring 403 is meshed with the driving gear 405, and a rotating platform 406 is fixedly connected to the top of the rotating column 402. The rotating assembly 4 can adjust the angle of the boiler.

[0029] Working principle: When in use, first the second motor 506 drives the first screw rod 505 to rotate, and drives the moving block 508 to move upward through the first threaded seat 507, lifts the detection assembly 6 to a high place, and reserves a position for the placement of the boiler. Then the boiler is placed on the rotating table 406 through the roller shaft 3, and then the output end of the first motor 404 drives the driving gear 405 to rotate, and drives the rotating column 402 to rotate through the driven gear ring 403 engaged therewith, thereby realizing the adjustment of the boiler position. Then the third motor 604 drives the second screw rod 603 to rotate, and adjusts the sealing cover 606 to the top of the boiler mouth through the second threaded seat 605. Then the second motor 506 drives the first screw rod 505 to rotate so that the sealing cover 606 is pressed tightly above the boiler mouth, and then the air pump 609 injects gas into the boiler through the threaded pipe 610, and then the pressure inside the boiler is monitored by the air pressure sensor 608, thereby determining the air tightness of the boiler.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A boiler inspection device, characterized in that: The invention comprises a base (1), wherein slides (2) are fixedly connected to the left and right sides of the top of the base (1), a roller shaft (3) is rotatably connected to the front side of the two slides (2), a rotating assembly (4) is arranged between the two slides (2) and on the rear side of the roller shaft (3), a lifting assembly (5) is arranged on the top of the base (1) and on the rear side of the rotating assembly (4), the lifting assembly (5) comprises a support block (501) fixedly connected to the top of the base (1), a first notch (502) is opened in the middle of the front side of the support block (501), a slide rail (503) is fixedly connected to the front side of the support block (501) and on the left and right sides of the first notch (502), the upper and lower ends of the two slide rails (503) are fixedly connected to limit blocks (504), the surfaces of the two slide rails (503) are slidably connected to moving blocks (508), and a detection assembly (6) is arranged on the front side of the moving block (508).

2. A boiler inspection device according to claim 1, characterized in that: The detection assembly (6) comprises a connection block (601) fixedly connected to the front side of the moving block (508); a second notch (602) is provided at the bottom of the connection block (601); a second screw rod (603) is rotatably connected inside the second notch (602); a second threaded seat (605) is threadedly connected to the surface of the second screw rod (603); a third motor (604) is fixedly installed on the front side of the connection block (601); an output end of the third motor (604) passes through the front side wall of the second notch (602) and is fixedly connected to the front end of the second screw rod (603).

3. A boiler inspection device according to claim 2, characterized in that: A sealing cover (606) is fixedly connected to the bottom of the second threaded seat (605), a sealing gasket (607) is fixedly connected to the inner top wall of the sealing cover (606), and a pressure sensor (608) is fixedly connected to the top of the inner wall of the sealing cover (606).

4. A boiler inspection device according to claim 2, characterized in that: An air pump (609) is fixedly mounted on the top of the connection block (601), and a threaded tube (610) is fixedly connected to the output end of the air pump (609), and the end of the threaded tube (610) passes through the top of the sealing cover (606) and extends to the inside of the sealing cover (606).

5. A boiler inspection device according to claim 1, characterized in that: A first screw rod (505) is rotatably connected inside the first slot (502), a first threaded seat (507) is threadedly connected to the surface of the first screw rod (505), the first threaded seat (507) is fixedly connected to the moving block (508), a second motor (506) is fixedly installed on the top of the support block (501), and an output end of the second motor (506) passes through the top wall of the first slot (502) and is fixedly connected to the upper end of the first screw rod (505).

6. A boiler inspection device according to claim 1, characterized in that: The rotating assembly (4) comprises a supporting sleeve (401) fixedly connected to the top of the base (1); a first motor (404) is fixedly installed on the top of the base (1) and inside the supporting sleeve (401); and a driving gear (405) is fixedly connected to the output end of the first motor (404).

7. A boiler inspection device according to claim 6, characterized in that: The rotating assembly (4) further comprises a rotating column (402) rotatably connected to the top of the base (1); a driven gear ring (403) is fixedly connected to the outer periphery of the rotating column (402); the driven gear ring (403) is meshed with a driving gear (405); and a rotating platform (406) is fixedly connected to the top of the rotating column (402).

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