A method of boiler plant inspection testing

Abstract

The application discloses a kind of boiler equipment inspection detection methods, belong to boiler detection technical field.A kind of boiler equipment inspection detection method, comprising the following steps: S1: when carrying out inspection detection to boiler equipment, detection device is placed at the mouth of boiler;S2: detection component on detection device is lowered to the bottom of boiler from the mouth of boiler;S3: detection component moves to the inner wall of boiler under the action of detection device, so that detection component is circumferentially and from bottom to top to the inner wall of boiler is photographed, scanned and flaw detection operation;S4: detection component uploads the information collected to computer by wireless module, and is observed and judged by detection personnel;The application can make detection component close to the inner wall of boiler when detecting the inside of boiler, make the photographing and scanning of the inner wall of boiler more clear, facilitate inspector to judge, and can realize lifting while circumferentially scanning in boiler, further improve detection effect.

Description

Technical Field

[0001] This invention relates to the field of boiler testing technology, and in particular to a method for inspecting and testing boiler equipment. Background Technology

[0002] Boilers are used in various applications, including modern thermal power plants. A boiler is a device that generates high-temperature, high-pressure steam. Pulverized coal is injected into the furnace through a burner and burned, with temperatures at the combustion center reaching over 1500 degrees Celsius. The large amount of heat generated is transferred to the water in the water-cooled walls. Due to the harsh and extreme working environment of boiler systems, internal changes frequently occur, requiring regular fault detection. Faults include wear, damage (deformation) caused by overheating of heating surfaces, and corrosion deformation caused by chemical or high-temperature corrosion. These changes can lead to perforations or small cracks in weld joints of spot welds and friction welds, which are not easily detected in the dark environment inside the furnace, potentially causing boiler leaks and safety accidents.

[0003] Chinese patent application number CN202322703174.1 discloses a boiler pressure testing device that can extend and retract hydraulic rods one, two, three, and four according to the depth of the boiler interior, thus accommodating boiler testing at different depths. However, after the testing device extends into the boiler, it is located in the center of the boiler interior, far from the inner wall. Due to the structural characteristics of the boiler interior and the possible presence of contamination or scale, the images are easily blurred or difficult to identify, making it inconvenient for inspectors to determine whether there are any abnormalities in the equipment. Furthermore, the existing testing device is large in size, making it inconvenient for staff to store and transport it. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a method for inspecting and testing boiler equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A method for inspecting and testing boiler equipment includes the following steps:

[0007] S1: When inspecting and testing boiler equipment, place the testing device at the boiler inlet;

[0008] S2: Lower the detection component on the detection device from the boiler inlet to the bottom of the boiler;

[0009] S3: The detection component moves towards the inner wall of the boiler under the action of the detection device, so that the detection component can take pictures, scan and perform flaw detection operations on the inner wall of the boiler in a circular manner from bottom to top.

[0010] S4: The detection component uploads the collected information to a computer via a wireless module, where it is observed and judged by the inspection personnel.

[0011] Preferably, the detection device includes a mounting plate, on which an overlapping rod is fixedly mounted to overlap with the boiler opening. A lowering assembly is provided on the top of the mounting plate, and a mounting block is provided on the lowering assembly. Several elastic telescopic struts are evenly arranged in a circular pattern on the mounting block. The detection component is located at the end of one of the elastic telescopic struts. A rotating plate is rotatably connected to the outside of the mounting plate, and a pneumatic support assembly for driving the elastic telescopic strut to rotate is provided on the rotating plate.

[0012] Preferably, the lowering assembly includes a support plate fixed to the mounting plate, a winding rod rotatably connected to the support plate, a drum mounted on the winding rod, and a pull rope wound around the drum. A drive motor for driving the winding rod to rotate is fixed to the support plate. The end of the pull rope away from the drum passes through the mounting plate and the mounting block in sequence and is connected to the movable end of the elastic telescopic support rod.

[0013] Preferably, the movable end of the elastic telescopic support is fixedly connected to a connecting plate, a support rod is fixedly provided on the connecting plate, and a ball bearing is provided at the end of the support rod away from the connecting plate.

[0014] Furthermore, the pull rope includes a first rope body connected to the drum, a first connecting block fixedly connected to the first rope body, a second rope body connected to the movable end of the elastic telescopic support rod, and a second connecting block fixedly connected to the second rope body, wherein the first connecting block and the second connecting block are rotatably connected.

[0015] Preferably, the detection component includes a microscope camera, a laser scanner, and an ultrasonic flaw detector mounted on a connecting plate. The connecting plate contains a wireless module and a power supply component for providing power to the detection component. The detection component is connected to a computer via the wireless module.

[0016] Preferably, the pneumatic support assembly includes a bent tube fixed to the rotating plate, an inflation hose is provided inside the bent tube, the bottom of the inflation hose is connected to an elastic telescopic support rod, an inflation device is provided inside the rotating plate, an air guide tube is provided between the end of the inflation hose away from the elastic telescopic support rod and the inflation device, and a counterweight is provided at the end of the inflation hose away from the elastic telescopic support rod.

[0017] Preferably, a side plate is fixedly provided on the rotating plate, and a first rotating rod and a second rotating rod are rotatably arranged on the side plate. The first rotating rod and the second rotating rod are provided with mutually meshing movable gears, and both the first rotating rod and the second rotating rod are provided with conveying wheels.

[0018] Preferably, the inflatable hose is placed between two conveyor wheels, and the conveyor wheels have an arc surface that abuts against the inflatable hose. The arc surface is provided with anti-slip texture. When the inflatable hose is not inflated, its cross-section is flat, and when the inflatable hose is inflated, its cross-section is circular.

[0019] Preferably, a first bevel gear is fixedly provided at the end of the winding rod, a first bevel gear ring that meshes with the first bevel gear is provided on the rotating plate, a second bevel gear is fixedly provided on the first rotating rod, and a second bevel gear ring that meshes with the second bevel gear is fixedly provided on the mounting plate through a connecting rod.

[0020] Compared with the prior art, the present invention provides a method for inspecting and testing boiler equipment, which has the following beneficial effects:

[0021] 1. The boiler equipment inspection and testing method, through the cooperation of the lowering component, pneumatic support component and elastic telescopic strut, can bring the detection component closer to the inner wall of the boiler when inspecting the inside of the boiler, making the imaging and scanning of the inner wall of the boiler clearer and facilitating the judgment of the inspectors. At the same time, it can achieve lifting and lowering while scanning in a circle inside the boiler, further improving the detection effect.

[0022] 2. The boiler equipment inspection and testing method involves using a winding rod to drive the drum to wind up the pull rope. When the mounting block moves the testing component upward using the elastic telescopic support rod, the first bevel gear on the winding rod meshes with the first bevel gear ring on the rotating plate. The rotating plate drives the testing component to rotate through the pneumatic support assembly, so that the circumferential inspection of the testing component and the bottom-up inspection are carried out simultaneously. The operation steps are simple and quick, which can improve the efficiency of boiler inspection and testing.

[0023] 3. In the boiler equipment inspection and testing method, when the testing component is pulled up by the lowering component, the air-filled hose also moves up with the elastic telescopic support rod. When the air-filled hose moves up, it automatically changes the conveying direction inside the bending tube. When the second bevel gear on the rotating plate meshes with the second bevel gear ring on the mounting plate, the conveying wheels on the first and second rotating rods convey the air-filled hose downwards, assisting the air-filled hose to move out of the bending tube, thus improving the smoothness of boiler equipment inspection.

[0024] 4. The boiler equipment inspection and testing method, by setting up pull ropes and air-filled hoses, makes the testing device easy to store and transport when not in use, thus reducing the workload and intensity of the staff. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0026] Figure 2 For the present invention Figure 1 Enlarged structural diagram of section A in the middle;

[0027] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0028] Figure 4 For the present invention Figure 3 Enlarged structural diagram of section B in the middle;

[0029] Figure 5 This is a partial structural schematic diagram of the present invention;

[0030] Figure 6 This is a cross-sectional structural diagram of the mounting plate of the present invention;

[0031] Figure 7 This is a schematic diagram of the cross-sectional structure of the inflatable hose of the present invention when it is not inflated;

[0032] Figure 8 This is a schematic diagram of the external structure of the connecting plate of the present invention;

[0033] Figure 9 This is a partial structural diagram of the pull rope of the present invention.

[0034] In the diagram: 1. Mounting plate; 2. Overlapping rod; 3. Mounting block; 4. Elastic telescopic strut; 5. Detection component; 501. Microscopic camera; 502. Laser scanner; 503. Ultrasonic flaw detector; 6. Rotating plate; 7. Support plate; 701. Winding rod; 7011. First bevel gear;

[0035] 702. Drum; 703. Pull rope; 7031. First rope body; 7032. First connecting block;

[0036] 7033, Second rope; 7034, Second connecting block; 704, Drive motor; 8, Connecting plate; 801, Support rod; 802, Ball bearing; 9, First bevel gear ring; 10, Bending tube; 11, Inflatable hose; 111, Air guide tube; 112, Counterweight; 12, Side plate; 121, First rotating rod; 1211, Second bevel gear; 122, Second rotating rod; 123, Movable gear; 124, Conveyor wheel; 1241, Anti-slip texture; 13, Second bevel gear ring. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0038] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] Example: Refer to Figure 1 and Figure 3 A method for inspecting and testing boiler equipment, comprising the following steps:

[0041] S1: When inspecting and testing boiler equipment, place the testing device at the boiler inlet;

[0042] S2: Lower the detection component 5 on the detection device from the boiler opening to the bottom of the boiler;

[0043] S3: The detection component 5 moves toward the inner wall of the boiler under the action of the detection device, so that the detection component 5 takes pictures, scans and performs flaw detection operations on the inner wall of the boiler in a circular manner from bottom to top.

[0044] S4: The detection component 5 uploads the collected information to the computer via a wireless module, where it is observed and judged by the inspection personnel.

[0045] Reference Figure 1 , Figure 3 , Figure 5 and Figure 6 As a preferred technical solution of the present invention, the detection device includes a mounting plate 1, an overlapping rod 2 that overlaps with the boiler opening is fixed on the mounting plate 1, a lowering component is provided on the top of the mounting plate 1, a mounting block 3 is provided on the lowering component, a plurality of elastic telescopic support rods 4 are evenly arranged in a circle on the mounting block 3, a detection component 5 is provided at the end of one of the elastic telescopic support rods 4, a rotating plate 6 is rotatably connected to the outside of the mounting plate 1, and a pneumatic support component for driving the elastic telescopic support rod 4 to rotate is provided on the rotating plate 6.

[0046] Furthermore, the lowering component includes a support plate 7 fixed on the mounting plate 1, a winding rod 701 rotatably connected to the support plate 7, a drum 702 set on the winding rod 701, and a pull rope 703 wound and connected to the drum 702. A drive motor 704 for driving the winding rod 701 to rotate is fixed on the support plate 7. The end of the pull rope 703 away from the drum 702 passes through the mounting plate 1 and the mounting block 3 in sequence and is connected to the movable end of the elastic telescopic support rod 4.

[0047] Furthermore, the movable end of the elastic telescopic strut 4 is fixedly connected to a connecting plate 8, and a support rod 801 is fixedly mounted on the connecting plate 8. A ball bearing 802 is provided at the end of the support rod 801 away from the connecting plate 8.

[0048] Specifically, the mounting plate 1 and rotating plate 6 are placed inside the boiler inlet, and then the overlapping rod 2 is used to overlap them at the boiler inlet. The lowering component is controlled to operate, causing the drive motor 704 to work and drive the winding rod 701 to rotate. The winding rod 701 no longer winds the pull rope 703 through the drum 702. The pull rope 703 is released from the movable end of the elastic telescopic support rod 4. The elastic telescopic support rod 4 returns to its original position and drives the detection component 5 to move towards the inner wall of the boiler until the ball bearing 802 at the end of the support rod 801 abuts against the inner wall of the boiler. As the pull rope 703 continues to be released, the mounting block 3 and the elastic... The elastic telescopic strut 4 reaches the bottom of the boiler. Through the cooperation of the lowering component, the pneumatic support component, and the elastic telescopic strut 4, the detection component 5 can be brought closer to the inner wall of the boiler when inspecting the inside of the boiler. This makes the imaging and scanning of the inner wall of the boiler clearer, making it easier for inspectors to make judgments. At the same time, it can be raised and lowered while scanning in a circle inside the boiler, realizing a comprehensive inspection of the inner wall of the boiler and further improving the inspection effect. It should be noted that the elastic telescopic strut 4 is composed of multiple sections of sliding tubes, and springs connect adjacent tubes.

[0049] Reference Figure 1 , Figure 3 , Figure 5 and Figure 8 As a preferred technical solution of the present invention, the detection component 5 includes a microscope camera 501, a laser scanner 502, and an ultrasonic flaw detector 503 mounted on a connecting plate 8. The connecting plate 8 is equipped with a wireless module and a power supply component for providing power to the detection component 5. The detection component 5 is connected to a computer via the wireless module. Specifically, when the detection component 5 is working, the microscope camera 501, the laser scanner 502, and the ultrasonic flaw detector 503 sequentially photograph, scan, and perform flaw detection operations on the inner wall of the boiler. The detection component 5 uploads the collected information to the computer via the wireless module for observation and judgment by the inspection personnel.

[0050] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As a preferred technical solution of the present invention, the pneumatic support assembly includes a bent tube 10 fixed on the rotating plate 6, an inflation hose 11 is provided inside the bent tube 10, the bottom of the inflation hose 11 is connected to the elastic telescopic support rod 4, an inflation device is provided inside the rotating plate 6, an air guide pipe 111 is provided between the end of the inflation hose 11 away from the elastic telescopic support rod 4 and the inflation device, and a counterweight block 112 is provided at the end of the inflation hose 11 away from the elastic telescopic support rod 4.

[0051] Furthermore, a side plate 12 is fixed on the rotating plate 6, and a first rotating rod 121 and a second rotating rod 122 are rotatably mounted on the side plate 12. The first rotating rod 121 and the second rotating rod 122 are provided with mutually meshing movable gears 123, and both the first rotating rod 121 and the second rotating rod 122 are provided with conveying wheels 124.

[0052] Furthermore, the inflation hose 11 is placed between two conveyor wheels 124. The conveyor wheels 124 have an arc surface that abuts against the inflation hose 11. Anti-slip texture 1241 is provided in the arc surface. When the inflation hose 11 is not inflated, its cross-section is flat. When the inflation hose 11 is inflated, its cross-section is circular.

[0053] Furthermore, a first bevel gear 7011 is fixedly provided at the end of the winding rod 701, a first bevel ring 9 that meshes with the first bevel gear 7011 is provided on the rotating plate 6, a second bevel gear 1211 is fixedly provided on the first rotating rod 121, and a second bevel ring 13 that meshes with the second bevel gear 1211 is fixedly provided on the mounting plate 1 through a connecting rod.

[0054] Furthermore, the pull rope 703 includes a first rope body 7031 connected to the drum 702, a first connecting block 7032 fixedly connected to the first rope body 7031, a second rope body 7033 connected to the movable end of the elastic telescopic support rod 4, and a second connecting block 7034 fixedly connected to the second rope body 7033. The first connecting block 7032 and the second connecting block 7034 are rotatably connected.

[0055] Specifically, after the lowering component lowers the mounting block 3 to the bottom of the boiler, the detection component 5 at the end of the elastic telescopic support rod 4 is close to the inner wall of the bottom of the boiler. Then, the air filling equipment is controlled to work. The air filling equipment can be a gas compressor, but is not limited to it. The air filling equipment is existing technology and will not be described in detail here. The air filling equipment fills the air into the air filling hose 11 through the air guide pipe 111. The air filling hose 11 expands and is not easily deformed. The air filling hose 11 should be made of a material with a certain degree of hardness and wear resistance. Then, the lowering component is controlled to wind up the pull rope 703. The pull rope 703 drives the mounting block 3 to move upward. When the mounting block 3 uses the elastic telescopic support rod 4 to drive the detection component 5 upward, the first bevel gear 7011 on the winding rod 701 meshes with the first bevel gear ring 9 on the rotating plate 6. The rotating plate 6 drives the detection component 5 to rotate through the non-deformable air hose 11, so that the circumferential detection of the detection component 5 and the bottom-up detection are carried out simultaneously. The operation steps are simple and quick, which can improve the efficiency of boiler inspection and testing. It should be noted that the setting of the first connecting block 7032 and the second connecting block 7034 can effectively prevent the first rope 7031 connected to the drum 702 from rotating with the drum. The device moves and twists, and the counterweight 112 can lower one end of the inflatable hose 11 to prevent it from shrinking and sliding into the bending tube 10 when it is not inflated. When the lowering component pulls the detection component 5 upward, the inflatable hose 11 also moves upward with the elastic telescopic support rod 4. When the inflatable hose 11 moves upward, it automatically changes its conveying direction within the bending tube 10. When the second bevel gear 1211 on the rotating plate 6 meshes with the second bevel gear ring 13 on the mounting plate 1, the conveying wheel 124 on the first rotating rod 121 and the second rotating rod 122 conveys the inflatable hose 11 downward. The auxiliary inflation hose 11 is moved out of the bending pipe 10 to improve the smoothness of boiler equipment inspection. As the lowering component gradually winds up the pull rope 703, the final detection component 5 moves to the upper side of the boiler. After the mounting block 3 abuts against the mounting plate 1, as the pull rope 703 continues to be wound up, the movable end of the elastic telescopic support rod 4 is subjected to force and moves towards the mounting block 3, causing the elastic telescopic support rod 4 to retract and reset. By setting up the pull rope 703 and the inflation hose 11, the detection device can be easily stored and transported when not in use, which helps to reduce the workload and work intensity of the staff.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for inspecting and testing boiler equipment, characterized in that, Includes the following steps: S1: When inspecting and testing boiler equipment, place the testing device at the boiler inlet; S2: Lower the detection component (5) on the detection device from the boiler opening to the bottom of the boiler; S3: The detection component (5) moves towards the inner wall of the boiler under the action of the detection device, so that the detection component (5) takes pictures, scans and performs flaw detection operations on the inner wall of the boiler in a circular manner from bottom to top; S4: The detection component (5) uploads the collected information to the computer via a wireless module, where it is observed and judged by the detection personnel; The detection device includes a mounting plate (1), on which an overlapping rod (2) is fixedly mounted to overlap with the boiler opening. A lowering assembly is provided on the top of the mounting plate (1), and a mounting block (3) is provided on the lowering assembly. Several elastic telescopic struts (4) are evenly arranged in a circle on the mounting block (3). The detection component (5) is located at the end of one of the elastic telescopic struts (4). A rotating plate (6) is rotatably connected to the outside of the mounting plate (1), and a pneumatic support assembly for driving the elastic telescopic struts (4) to rotate is provided on the rotating plate (6). The pneumatic support assembly includes a bent tube (10) fixed on a rotating plate (6), an air hose (11) is provided inside the bent tube (10), the bottom of the air hose (11) is connected to an elastic telescopic support rod (4), an inflation device is provided inside the rotating plate (6), an air guide pipe (111) is provided between the end of the air hose (11) away from the elastic telescopic support rod (4) and the inflation device, and a counterweight (112) is provided at the end of the air hose (11) away from the elastic telescopic support rod (4). The inflatable hose (11) expands after being inflated and is not easily deformed. The cross-section of the inflatable hose (11) is circular after being inflated. The rotating plate (6) drives the detection component (5) to rotate through the inflatable hose (11). The cross-section of the inflatable hose (11) is flat when it is not inflated.

2. The boiler equipment inspection and testing method according to claim 1, characterized in that, The lowering assembly includes a support plate (7) fixed on the mounting plate (1), a winding rod (701) rotatably connected to the support plate (7), a drum (702) set on the winding rod (701), and a pull rope (703) wound and connected to the drum (702). A drive motor (704) for driving the winding rod (701) to rotate is fixed on the support plate (7). The end of the pull rope (703) away from the drum (702) passes through the mounting plate (1) and the mounting block (3) in sequence and is connected to the movable end of the elastic telescopic support rod (4).

3. The boiler equipment inspection and testing method according to claim 2, characterized in that, The movable end of the elastic telescopic support rod (4) is fixedly connected to a connecting plate (8), and a support rod (801) is fixedly provided on the connecting plate (8). A ball bearing (802) is provided at the end of the support rod (801) away from the connecting plate (8).

4. The boiler equipment inspection and testing method according to claim 3, characterized in that, The pull rope (703) includes a first rope body (7031) connected to the drum (702), a first connecting block (7032) fixedly connected to the first rope body (7031), a second rope body (7033) connected to the movable end of the elastic telescopic support rod (4), and a second connecting block (7034) fixedly connected to the second rope body (7033). The first connecting block (7032) and the second connecting block (7034) are rotatably connected.

5. The boiler equipment inspection and testing method according to claim 4, characterized in that, The detection component (5) includes a microscope camera (501), a laser scanner (502) and an ultrasonic flaw detector (503) mounted on a connecting plate (8). The connecting plate (8) is equipped with a wireless module and a power supply component for providing power to the detection component (5). The detection component (5) is connected to a computer via the wireless module.

6. The boiler equipment inspection and testing method according to claim 5, characterized in that, A side plate (12) is fixed on the rotating plate (6). A first rotating rod (121) and a second rotating rod (122) are rotatably arranged on the side plate (12). The first rotating rod (121) and the second rotating rod (122) are provided with mutually meshing movable gears (123). Both the first rotating rod (121) and the second rotating rod (122) are provided with conveying wheels (124).

7. The boiler equipment inspection and testing method according to claim 6, characterized in that, The inflatable hose (11) is placed between two conveyor wheels (124). The conveyor wheels (124) have an arc surface that abuts against the inflatable hose (11). The arc surface is provided with anti-slip texture (1241).

8. The boiler equipment inspection and testing method according to claim 7, characterized in that, The end of the winding rod (701) is fixedly provided with a first bevel gear (7011), the rotating plate (6) is provided with a first bevel ring (9) that meshes with the first bevel gear (7011), the first rotating rod (121) is fixedly provided with a second bevel gear (1211), and the mounting plate (1) is fixedly provided with a second bevel ring (13) that meshes with the second bevel gear (1211) via a connecting rod.

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