Multi-layer tube panel welding seam detection device

Abstract

A multilayer tube panel welding seam detection device comprises a protection lead room, the protection lead room is provided with a tube panel feeding port, the top of the protection lead room is provided with an X-ray emission mechanism with an adjustable irradiation angle, two sides of the tube panel feeding port are provided with moving assemblies, and the moving assemblies on the two sides are provided with a first synchronizing wheel and a second synchronizing wheel respectively. The first synchronizing wheel and the second synchronizing wheel are in transmission connection through an open-loop synchronous belt, and the two ends of the open-loop synchronous belt are connected to the flat panel detector assembly to form a closed loop. According to the utility model, the first synchronizing wheel and the second synchronizing wheel are matched with the open-loop synchronous belt to move the flat panel detector assembly in the gaps of the multiple layers of tube panels, and the flat panel detector assembly can obtain the complete image of the welding seam of each layer of tube panel by adjusting the irradiation angle of the X-ray emission mechanism; welding seam imaging interference caused by mutual shielding of the upper and lower tube panels is avoided; as the flat panel detector assembly is used for alternately imaging in the gaps of the multiple layers of tube panels in detection, centralized detection can be performed after the multiple layers of tube panels are welded, and the detection efficiency is obviously improved.

Description

Technical Field

[0001] This utility model relates to the technical field of weld inspection equipment, and in particular to a multi-layer pipe screen weld inspection device. Background Technology

[0002] A tube panel is a pipe structure used in boilers or other heat exchange equipment. It is usually composed of multiple welded pipes and is used to transfer heat or fluids.

[0003] There are various methods and techniques for inspecting weld seams in pipe panels, including laser vision inspection, radiographic inspection, and ultrasonic testing. Laser vision inspection can quickly identify surface defects in welds, offering high efficiency and accuracy. Radiographic inspection is widely used in the inspection of weld seams in power plant boilers, providing a direct view of defect projections. Ultrasonic testing is suitable for weld seams in complex structures. Among these, radiographic inspection is characterized by its intuitiveness, reliability, and high sensitivity, making it a crucial means of ensuring welding quality.

[0004] However, when inspecting the welds of multi-layer tube screens, the traditional method is to inspect each layer of tube screen after welding. This is cumbersome and the inspection results are easily inaccurate due to interference between upper and lower layers.

[0005] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a multi-layer pipe screen weld inspection device to solve the above problems.

[0006] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solution of this utility model and facilitating the understanding of those skilled in the art. It should not be assumed that the above content is known to those skilled in the art simply because it has been described in the background section of this utility model. Utility Model Content

[0007] To overcome the shortcomings of the prior art, the present invention aims to disclose a multi-layer pipe screen weld inspection device to improve the efficiency and accuracy of multi-layer pipe screen weld inspection.

[0008] This utility model discloses a multi-layer tube screen weld inspection device, including a protective lead room. The front end of the protective lead room is provided with a tube screen inlet, and the top of the protective lead room is provided with an X-ray emitting mechanism with adjustable irradiation angle. Movable components are provided on both sides of the tube screen inlet, and a first synchronous wheel and a second synchronous wheel are respectively provided on the two movable components. A synchronous belt tensioning mechanism is provided at the first synchronous wheel, and the second synchronous wheel is driven by a synchronous belt drive mechanism. The first synchronous wheel and the second synchronous wheel are connected by an open-loop synchronous belt. The two ends of the open-loop synchronous belt are connected to a flat panel detector assembly to form a closed loop. The flat panel detector assembly can pass through the gap between the multi-layer tube screens. A detector is provided at the upper end of the flat panel detector assembly, and the imaging surface of the detector is set facing upwards towards the flat panel detector assembly.

[0009] Preferred technical solution: The flat panel detector assembly also includes an aluminum protective frame, the detector is fixed inside the aluminum protective frame, a protective lead plate is provided on the outer periphery of the detector's imaging surface, and a carbon fiber plate is provided on the top of the detector's imaging surface. The carbon fiber plate is connected to the protective lead plate through a mounting frame. The carbon fiber plate protects the detector's imaging surface without affecting the detector's imaging effect.

[0010] Preferred technical solution: The aluminum protective frame is provided with a hanging ear structure and a buffer wheel on both sides, and the two ends of the open-loop synchronous belt are provided with hooks to connect with the hanging ear structure, which facilitates the disassembly and assembly of the open-loop synchronous belt and the flat panel detector assembly; the buffer wheel plays a role in anti-collision and guidance during the lateral movement of the flat panel detector assembly.

[0011] Preferred technical solution: The moving component includes a left-right translation mechanism and a lifting mechanism, which facilitates the adjustment of the conveying direction of the flat panel detector component.

[0012] Preferred technical solution: Both the left and right translation mechanism and the lifting mechanism are equipped with movement distance markings to facilitate position adjustment.

[0013] Preferred technical solution: The synchronous belt tensioning mechanism includes a tension driven pulley, an open-loop synchronous belt is connected to the upper side of the tension driven pulley and the first synchronous pulley, a counterweight pulley is connected to the upper side of the open-loop synchronous belt between the tension driven pulley and the first synchronous pulley, the two ends of the counterweight pulley are rotatably connected to the suspended counterweight frame, and a counterweight block is detachably connected to the bottom of the suspended counterweight frame to improve the motion stability of the flat panel detector assembly.

[0014] Preferred technical solution: The synchronous belt drive mechanism includes a servo motor and a reducer, enabling the flat panel detector assembly to achieve high-precision translation.

[0015] Preferred technical solution: The open-loop synchronous belt is divided into at least two sections, and each section of the open-loop synchronous belt is detachably connected by a quick connector, which facilitates the connection of the open-loop synchronous belt.

[0016] Preferred technical solution: The first and second synchronous pulleys are provided with synchronous belt limiting structures to prevent the open-loop synchronous belt from being pulled away from the synchronous pulleys after it is disconnected.

[0017] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0018] This utility model discloses a multi-layer tube screen weld seam inspection device. It employs a first and second synchronous wheel in conjunction with an open-loop synchronous belt to move a flat panel detector assembly within the gaps of the multi-layer tube screen. By adjusting the irradiation angle of the X-ray emission mechanism, the flat panel detector assembly can obtain complete images of the weld seams of each layer of the tube screen, avoiding mutual obstruction and interference between upper and lower layers. Because the inspection is performed by the flat panel detector assembly interlacing images within the gaps of the multi-layer tube screen, centralized inspection can be conducted after the welding of the multi-layer tube screen is completed, significantly improving inspection efficiency. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a multi-layer pipe screen weld inspection device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of a multi-layer pipe screen weld inspection device according to the present invention;

[0022] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0023] Figure 4 for Figure 2 A magnified view of a portion of point B in the middle;

[0024] Figure 5 This is a schematic diagram of the explosion of the flat panel detector assembly in this utility model.

[0025] In the attached diagrams above, 100 is a multi-layer tube screen; 1 is a protective lead room; 11 is the tube screen inlet; 2 is an X-ray emitting mechanism; 3 is a moving component; 31 is a left-right translation mechanism; 32 is a lifting mechanism; 4 is a first synchronous pulley; 5 is a second synchronous pulley; 6 is an open-loop synchronous belt; 61 is a hook; 62 is a quick connector; 7 is a flat panel detector assembly; 71 is a detector; 72 is an aluminum protective frame; 72a is a hanging ear structure; 72b is a buffer wheel; 73 is a protective lead plate; 74 is a carbon fiber plate; 75 is a mounting frame; 8 is a synchronous belt tensioning mechanism; 81 is a tension driven pulley; 82 is a counterweight wheel; 83 is a suspended counterweight frame; 84 is a counterweight block; and 9 is a synchronous belt drive mechanism. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and their synonyms, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0029] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0030] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," "fitting," and "fitting" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Similarly, "fitting" can mean completely or partially fitted. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Example:

[0033] like Figure 1 , Figure 2 and Figure 5 As shown, this utility model discloses a multi-layer tube screen weld inspection device, including a protective lead room 1. The front end of the protective lead room 1 is provided with a tube screen inlet 11. The top of the protective lead room 1 is provided with an X-ray emitting mechanism 2 with adjustable irradiation angle. Movable components 3 are provided on both sides of the tube screen inlet 11. The two movable components 3 are respectively provided with a first synchronous wheel 4 and a second synchronous wheel 5. A synchronous belt tensioning mechanism 8 is provided at the first synchronous wheel 4. The second synchronous wheel 5 is driven by a synchronous belt drive mechanism 9. The first synchronous wheel 4 and the second synchronous wheel 5 are connected by an open-loop synchronous belt 6. The two ends of the open-loop synchronous belt 6 are connected to a flat panel detector assembly 7 to form a closed loop. The flat panel detector assembly 7 can pass through the gap between the multi-layer tube screens 100. A detector 71 is provided at the upper end of the flat panel detector assembly 7. The imaging surface of the detector 71 is set facing upwards towards the flat panel detector assembly 7.

[0034] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the usage method and principle of this utility model are described below:

[0035] S1. Adjust the moving component 3 so that the gap between the first synchronous wheel 4, the second synchronous wheel 5 and the multi-layer tube screen 100 is at the same height;

[0036] S2. The open-loop synchronous belt 6 passes through the gap between the multi-layer tube screen 100 and is connected in series with the flat panel detector assembly 7 on the first synchronous wheel 4 and the second synchronous wheel 5, and the flat panel detector assembly 7 is inserted into the gap between the multi-layer tube screen 100 with the imaging surface facing upward.

[0037] S3. Adjust the synchronous belt tensioning mechanism 8 to achieve tensioning of the open-loop synchronous belt 6 under closed loop. At the same time, adjust the moving component 3 to adjust the relative position of the first synchronous wheel 4 and the second synchronous wheel 5, and adjust the emission angle of the X-ray emission mechanism 2 so that the moving path of the flat panel detector component 7 meets the imaging requirements.

[0038] S4. Start the synchronous belt drive mechanism 9 to drive the flat panel detector assembly 7 through the gap between the multi-layer tube screen 100. During this process, the flat panel detector assembly 7, together with the X-ray emission mechanism 2, sequentially performs imaging detection on the weld seam of the upper tube screen.

[0039] S5. After the weld seam of the first layer of tube screen is inspected, the open-loop synchronous belt 6 and the flat panel detector assembly 7 are removed. Then, steps S1, S2, S3 and S4 are repeated to inspect other tube screen layers, which greatly improves the inspection efficiency. During the inspection, the emission angle of the X-ray emission mechanism 2 is adjusted to avoid interference imaging between different tube screen layers, thereby improving the inspection accuracy.

[0040] like Figure 1 and Figure 5 As shown, to prevent damage to the detection device, the flat panel detector assembly 7 also includes an aluminum protective frame 72. The detector 71 is fixed inside the aluminum protective frame 72. A protective lead plate 73 is provided on the outer periphery of the imaging surface of the detector 71. A carbon fiber plate 74 is provided above the imaging surface of the detector 71. The carbon fiber plate 74 is connected to the protective lead plate 73 through a mounting frame 75. The aluminum protective frame 72 and the carbon fiber plate 74 provide comprehensive protection for the outer periphery of the detector 71, preventing the multi-layer tube screen 100 from colliding with the detector 71 during the movement of the flat panel detector assembly 7.

[0041] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, to further protect the detection device, the aluminum frame 72 is provided with a hanging ear structure 72a and a buffer wheel 72b on both sides. The two ends of the open-loop synchronous belt 6 are provided with hooks 61 connected to the hanging ear structure 72a. The buffer wheel 72b plays a collision-proof and guiding role during the lateral movement of the flat panel detector assembly 7.

[0042] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in order to facilitate the adjustment of the conveying direction of the flat panel detector assembly, the moving component 3 includes a left-right translation mechanism 31 and a lifting mechanism 32. The left-right translation mechanism 31 and the lifting mechanism 32 control the lifting and moving of the first synchronous wheel 4 and the second synchronous wheel 5 to ensure the accuracy of the movement path of the flat panel detector assembly 7.

[0043] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in order to improve the accuracy of the conveying direction of the flat panel detector assembly, both the left and right translation mechanism 31 and the lifting mechanism 32 are equipped with moving distance marking scales to ensure adjustment accuracy.

[0044] like Figure 1 , Figure 2 and Figure 4As shown, to improve the motion stability of the flat panel detector assembly, the synchronous belt tensioning mechanism 8 includes a tension driven pulley 81, an open-loop synchronous belt 6 that is driven to the upper side of the tension driven pulley 81 and the first synchronous pulley 4, a counterweight pulley 82 that is driven to the upper side of the open-loop synchronous belt 6 between the tension driven pulley 81 and the first synchronous pulley 4, and two ends of the counterweight pulley 82 that are rotatably connected to the suspended counterweight frame 83, and a counterweight block 84 that is detachably connected to the bottom of the suspended counterweight frame 83.

[0045] like Figure 1 , Figure 2 and Figure 3 As shown, in order to achieve high-precision translation of the flat panel detector assembly, the synchronous belt drive mechanism 9 includes a servo motor and a reducer.

[0046] like Figure 1 , Figure 2 and Figure 3 As shown, to facilitate the threading of open-loop synchronous belts, the open-loop synchronous belt 6 is divided into two sections, and each section of the open-loop synchronous belt 6 is detachably connected by a quick connector 62.

[0047] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, to prevent the open-loop synchronous belt from being pulled away from the synchronous pulley after disconnection, the first synchronous pulley 4 and the second synchronous pulley 5 are provided with a synchronous belt limiting structure.

[0048] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multilayer tube panel weld detection device comprising a shielded lead house (1), characterized in that: The front end of the protective lead house (1) is provided with a tube screen feeding port (11), the top of the protective lead house (1) is provided with an X-ray emitting mechanism (2) with adjustable irradiation angle, both sides of the tube screen feeding port (11) are provided with a moving assembly (3), the first synchronous wheel (4) and the second synchronous wheel (5) are respectively arranged on both sides of the moving assembly (3), the first synchronous wheel (4) is provided with a synchronous belt tensioning mechanism (8), the second synchronous wheel (5) is driven by a synchronous belt driving mechanism (9); the first synchronous wheel (4) and the second synchronous wheel (5) are drivingly connected by an open loop synchronous belt (6), both ends of the open loop synchronous belt (6) are connected to the flat panel detector assembly (7) to form a closed loop, the flat panel detector assembly (7) can pass through the gap between the multi-layer tube screens, the upper end of the flat panel detector assembly (7) is provided with a detector (71), and the imaging surface of the detector (71) is arranged above the flat panel detector assembly (7).

2. A multi-layer tube screen weld detection device according to claim 1, characterized in that: The flat panel detector assembly (7) further comprises an aluminum guard frame (72), the detector (71) is fixed in the aluminum guard frame (72), the outer periphery of the imaging surface of the detector (71) is provided with a protective lead plate (73), and the imaging surface of the detector (71) is provided with a carbon fiber plate (74) above.

3. A multi-layer tube screen weld detection apparatus as defined in claim 2, wherein: Both sides of the aluminum guard frame (72) are provided with a hanging ear structure (72a) and a buffer wheel (72b), and both ends of the open loop synchronous belt (6) are provided with hooks (61) connected with the hanging ear structure (72a).

4. The multi-tiered tube panel weld detection apparatus of claim 1, wherein: The moving assembly (3) comprises a left-right translation mechanism (31) and a lifting mechanism (32).

5. A multi-layer tube screen weld detection apparatus as defined in claim 4, wherein: The left-right translation mechanism (31) and the lifting mechanism (32) are both provided with a moving distance identification scale.

6. A multi-layer tube screen weld detection apparatus as defined in claim 1, wherein: The synchronous belt tensioning mechanism (8) comprises a tensioning driven wheel (81), the open loop synchronous belt (6) is drivingly connected to the upper side of the tensioning driven wheel (81) and the first synchronous wheel (4), a counterweight wheel (82) is drivingly connected to the upper side of the open loop synchronous belt (6) between the tensioning driven wheel (81) and the first synchronous wheel (4), both ends of the counterweight wheel (82) are rotatably connected to a suspended counterweight frame (83), and the bottom of the suspended counterweight frame (83) is detachably connected with a counterweight block (84).

7. The multi-layer tube screen weld detection apparatus of claim 1, wherein: The synchronous belt driving mechanism (9) comprises a servo motor and a speed reducer.

8. The multi-layer tube screen weld detection apparatus of claim 1, wherein: The open loop synchronous belt (6) is divided into at least two sections, and each section of the open loop synchronous belt (6) is detachably connected by a quick connector (62).

9. The multi-layer tube screen weld detection apparatus of claim 1, wherein: The first synchronous wheel (4) and the second synchronous wheel (5) are provided with a synchronous belt limiting structure.

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