Novel welding seam detection ruler for supervision and inspection of pressure vessel and pressure pipeline

Abstract

The invention discloses a novel welding seam detection ruler for supervision and inspection of a pressure container and a pressure pipeline, and relates to the technical field of welding seam detection, the novel welding seam detection ruler comprises two bases, a first ring hoop and a second ring hoop, the two sides of the two bases are connected with hinge pieces, and one sides of the hinge pieces are connected with the first ring hoop and the second ring hoop respectively; and one end of the surrounding hoop I and one end of the surrounding hoop II are connected with a butt joint block and a connecting block respectively. A to-be-detected pipeline or pressure vessel is correspondingly inserted between the first hoop and the second hoop, then the first hoop and the second hoop are pulled to turn over around the hinge piece and are fastened through the fixing bolts, sleeving connection can be achieved, the pressure pipeline and the pressure vessel are supported and fastened through the multiple inner attaching rollers, and therefore the pressure vessel and the pressure vessel can be conveniently and rapidly detected. Traditional magnetic attraction or adhesive fixation is replaced, poor contact and influence on the fastening effect caused by change of the curved surface rate are prevented, the effect of stabilizing the detection reference is achieved, displacement or shaking in the detection process is avoided, and the welding seam detection accuracy is ensured.

Description

Technical Field

[0001] This invention relates to the field of weld inspection technology, and in particular to a novel weld inspection ruler for the supervision and inspection of pressure vessels and pressure pipelines. Background Technology

[0002] Pressure vessels and pressure pipelines are key pressure-bearing equipment in industrial production. Their welding quality directly affects the safety and reliability of equipment operation. In the petrochemical, energy, and chemical industries, pressure vessels need to withstand high temperature, high pressure, and corrosive media for a long time, while pressure pipelines are responsible for transporting media. If leaks or explosions occur due to weld defects, they will cause significant casualties and property damage. Therefore, strict inspection of weld quality is a necessary step to ensure the safe operation of equipment. Among them, weld width is a key parameter of the load-bearing capacity of welded joints. By inspecting the weld width, it can be ensured that the joint strength meets the design requirements and avoid safety accidents such as leaks and explosions caused by weld defects. A weld inspection ruler for pressure vessel inspection, with publication number CN217504614U, includes a movable body and an inspection mechanism. One side of the movable body has an arc-shaped movable side. When the movable body moves along the outer wall of the tank / container, it adapts to the outer wall via the arc-shaped movable side. The inspection mechanism includes inspection components and a ruler. In this invention, after the upper and lower detection ends are inserted into the weld, they drive the ruler to move according to the changes in the weld. During the movement, if a crack or protrusion appears in the weld, the scale indicated by the ruler in the graduated groove will change. By observing the scale indicated by the ruler, the distance moved by the upper / lower detection ends can be determined, thus revealing the size of the crack or protrusion for subsequent repair welding. The existing technology described above involves inserting a measuring ruler into the corresponding weld and moving it to detect the size of the weld protrusion. This method is limited in scope and cannot effectively measure the weld width, which directly affects the effective cross-sectional area of ​​the joint. If the width is insufficient, the amount of weld metal is reduced, potentially leading to a decrease in load-bearing capacity. This is especially problematic under high pressure, high temperature, or alternating load conditions, as it can easily cause stress concentration and fatigue cracks. Furthermore, the lack of a precise measuring instrument positioning means that the insertion position may shift due to operator habits or uneven weld surfaces, resulting in significant data dispersion in repeated measurements. Additionally, the unidirectional horizontal measurement method cannot detect circumferential welds in pressure pipelines and pressure vessels, limiting its applicability. Therefore, corresponding improvements are needed. In the field of pressure vessel inspection technology, a weld inspection gauge for pressure vessel inspection, with announcement number CN218034827U, is disclosed. It includes a main scale with two self-locking components on its upper surface. The initial state of the height gauge and the edge gauge is contact with the stop bar. When a worker is operating alone and can only operate with one hand to inspect the weld due to external factors, to adjust the position of the height gauge and the edge gauge, the worker can hold the main scale and apply pressure to the edge gauge or height gauge towards the bottom wall of the limiting groove with one finger. The spring retracts under force, and the edge gauge or height gauge no longer contacts the stop bar, facilitating sliding within the limiting groove. The finger controls the edge gauge or height gauge to slide to the appropriate position within the limiting groove. When the finger is released, the spring rebounds, and the spring exerts force on the height gauge and edge gauge, causing them to contact the corresponding position of the stop bar, thus fixing their position. This allows for one-handed operation and is quite convenient to use. The existing inspection rulers lack positioning constraints for the inspection body, which can easily lead to positional deviations during the inspection process. Furthermore, when inspecting welds on annular inspection bodies such as pressure pipelines and pressure vessels, it is inconvenient to flexibly adjust the inspection points, requiring manual adjustment of the inspection points throughout the process, which is cumbersome and time-consuming. Therefore, corresponding improvements are needed. Summary of the Invention

[0003] The purpose of this invention is to provide a novel weld inspection ruler for the supervision and inspection of pressure vessels and pressure pipelines, so as to solve the problems mentioned in the background art, such as cumbersome inspection operation, lack of positioning, and poor flexibility when using existing weld inspection rulers.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a novel weld inspection ruler for the supervision and inspection of pressure vessels and pressure pipelines, comprising two bases, a first ring clamp, and a second ring clamp, wherein hinges are connected to both sides of the two bases, and the first ring clamp and the second ring clamp are respectively connected to one side of the hinges. One end of each of the first and second ring clamps is connected to a docking block and a connecting block, respectively. A fixing bolt is connected between the docking block and the connecting block. An outer frame is connected to one side of each of the first and second ring clamps, and an adjustment mechanism is provided on one side of each outer frame. Supporting components are evenly arranged inside the base.

[0005] Furthermore, the bases are connected by overlapping strips, and the circumferential clamps are connected by connecting columns.

[0006] Furthermore, the supporting component includes a support strip connected between the outer frames, and movable columns are connected to both sides inside the support strip, and a support spring is connected to one end of each movable column, and a swing arm is connected to one end of each support spring.

[0007] Furthermore, each of the swing arms is movably connected to an inner roller, and each of the swing arms is movably connected to a corner plate via a movable shaft, with the corner plates respectively connected to the base and one side of the circumferential clamp.

[0008] Furthermore, two of each of the swing arms and inner rollers are provided on one side of the first and second ring clamps, and the swing arms and inner rollers on the first and second ring clamps are symmetrically distributed about the central axis of the base.

[0009] Furthermore, the adjustment mechanism includes support bars, and there are two support bars, both fixed to one side of the outer frame. Two connecting bars are connected between the support bars, and a support seat is connected to one side of the top of each connecting bar. An adjusting screw is connected between the support seats, and a handle is connected to one end of the adjusting screw.

[0010] Furthermore, the adjusting screw is threadedly connected to a movable seat on its outer side, and a push bar is connected to one side of the movable seat. A power push frame is connected to the other side of the movable seat, and a measuring component is provided between the power push frame and the push bar.

[0011] Furthermore, guide components are provided on both sides inside the movable seat. Each guide component includes a bearing fixed to the top of the connecting bar, and a guide post is connected between the bearings. The guide post passes through the movable seat and is slidably connected to the movable seat.

[0012] Furthermore, the measuring component includes a vernier caliper connected between the push bar and the power push frame, and a movable caliper is movably sleeved on the outside of the vernier caliper. A detection scale is fixed on one side of the movable caliper, a movable strip is connected to the bottom end of the detection scale, and a positioning screw is connected to the outside of the movable caliper.

[0013] Furthermore, a fixed scale is fixed on one side of the vernier caliper, and the detection scale is slidably connected to the vernier caliper through a movable caliper.

[0014] Compared with the prior art, the beneficial effects of the present invention are: when using the new weld inspection ruler for the supervision and inspection of pressure vessels and pressure pipelines, it can perform positioning inspection on pressure vessels and pressure pipelines of different specifications. Furthermore, during the inspection process, the pipelines and pressure vessels can be flexibly rotated to achieve weld inspection at different positions, thereby improving the flexibility of the inspection. 1. Insert the pipe or pressure vessel to be inspected between the two clamps, clamp one and clamp two. Then, turn clamp one and clamp two so that they rotate around the hinge. Tighten them with fixing bolts to achieve the connection. Multiple inner rollers are used to support and tighten the pressure pipe and pressure vessel, replacing the traditional magnetic or adhesive fixing. This prevents poor contact due to changes in curvature, which would affect the tightening effect and achieve a stable inspection benchmark. It also avoids displacement or shaking during the inspection process and ensures the accuracy of weld inspection. Manually turning the handle rotates the adjusting screw, which engages with the threaded moving seat, causing it to move back and forth. The push bar and power pusher then move the vernier caliper synchronously until the fixed scale and adjusting mechanism are pressed against the pressure pipe or pressure vessel wall. This allows for left-right positioning, improving the accuracy of weld inspection. Even if the fixed scale is pressed against one side of the weld, pulling the movable bar allows the movable caliper to slide horizontally along the vernier caliper, adjusting the position of the inspection scale so that it is pressed against the other side of the weld. The distance between the fixed scale and the inspection scale is then read, providing the width of the circumferential weld formed by the pressure pipe welding. A weld width that is too small may result in insufficient weld strength, making it unable to withstand the design pressure; a width that is too large may lead to material degradation due to excessive heat input. By inspecting the circumferential weld width, it is ensured that it meets design requirements, preventing leaks or explosions caused by weld defects. 2. Manually rotate the pressure vessel or pressure pipeline so that it rotates within the first and second clamping rings and around the inner roller. The swing arm connected to the inner roller is supported by a support spring and a movable column. The extensibility of the support spring is used to support different sizes of test objects, allowing the inspector to complete circumferential weld inspection without moving equipment or adjusting tooling, eliminating blind spots and improving the comprehensiveness and efficiency of the inspection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a side-view perspective view of the three-dimensional structure of the present invention; Figure 4 This is a cross-sectional three-dimensional structural diagram of the present invention; Figure 5 This is a partial three-dimensional structural diagram of the present invention; Figure 6 This is a partial three-dimensional structural diagram of the present invention; Figure 7 This is a three-dimensional structural diagram of the adjustment mechanism of the present invention; Figure 8 This is a bottom-view three-dimensional structural diagram of the present invention.

[0016] The reference numerals in the diagram are as follows: 1. Base; 101. Hinge; 2. Ring clamp one; 201. Connecting block; 3. Ring clamp two; 301. Connecting block; 4. Outer frame; 5. Fixing bolt; 6. Swing arm; 7. Inner roller; 8. Adjustment mechanism; 801. Support bar; 802. Support seat; 803. Adjusting screw; 804. Handle; 805. Moving seat; 806. Push bar; 807. Connecting bar; 808. Power push frame; 9. Overlapping strip; 10. Movable column; 11. Support spring; 12. Angle plate; 13. Connecting column; 14. Vernier caliper; 1401. Fixed scale; 15. Movable bar; 16. Support bar; 17. Movable caliper; 18. Inspection scale; 19. Positioning screw. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-8 The present invention provides the following technical solution: Example 1: To address the issues of poor flexibility and inconvenient adjustment of the inspection position when using existing new weld inspection rulers for pressure vessels and pressure pipelines, the following technical solution is disclosed. Please refer to the following for details. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8A novel weld inspection ruler for pressure vessels and pressure pipelines includes two bases 1, a first clamp 2, and a second clamp 3. Hinges 101 are connected to both sides of the bases 1, and the first clamp 2 and the second clamp 3 are respectively connected to one side of each hinge 101. An overlapping strip 9 connects the bases 1, and a connecting column 13 connects the first clamp 2. A butt block 201 and a connecting block 301 are respectively connected to one end of the first clamp 2 and the second clamp 3, and a fixing bolt 5 connects the butt block 201 and the connecting block 301. An outer frame 4 is connected to one side of each of the first clamp 2 and the second clamp 3, and an adjustment mechanism 8 is provided on one side of each outer frame 4. The adjustment mechanism 8 includes two support bars 801, both fixed to... On one side of the outer frame 4, two connecting bars 807 are connected between the support bars 801. Each connecting bar 807 has a support seat 802 connected to its top end. An adjusting screw 803 is connected between the support seats 802. One end of the adjusting screw 803 is connected to a handle 804. A movable seat 805 is threaded to the outside of the adjusting screw 803. A push bar 806 is connected to one side of the movable seat 805. A power push frame 808 is connected to the other side of the movable seat 805. A measuring component is provided between the power push frame 808 and the push bar 806. Guide components are provided on both sides inside the movable seat 805. The guide components include a shaft seat fixed to the top end of the connecting bar 807. A guide post is connected between the shaft seats. The guide post passes through the movable seat 805 and is slidably connected to the movable seat 805. In this embodiment, when pipes are connected or cylindrical pressure vessels are connected, a ring-shaped welded seam is formed. The corresponding clamps 2 and 3 are then fitted onto the pressure vessel or pipe to be tested, ensuring the mating block 201 and connecting block 301 are in contact. The fixing bolts 5 are then tightened for fixation. This secures the clamps 2 and 3 onto the pressure vessel or pipe, and the inner roller 7 is placed against the testing object. During this process, the inner roller 7 rotates, causing the swing arm 6 to rotate around the corner plate 12, compressing the support spring 11. This allows for adaptation to different specifications of pressure vessels. For pressure vessels and pressure pipelines, the circumferential welds of pressure pipelines or pressure vessels can be inspected. Then, by manually turning the handle 804, the adjusting screw 803 is rotated. The adjusting screw 803 is threadedly connected to the moving seat 805, which in turn causes the moving seat 805 to move back and forth and slide along the guide post to limit and guide the moving seat 805. This then pushes the push bar 806 and the power push frame 808 to move synchronously until the vernier caliper 14 moves synchronously until the fixed scale 1401 on the vernier caliper 14 is pressed against the pressure vessel or pressure pipeline, thus achieving the flexibility of inspection and meeting the inspection needs of different specifications of inspection objects. The measuring assembly includes a vernier caliper 14 connected between the push bar 806 and the power push frame 808, and a movable caliper 17 is movably sleeved on the outside of the vernier caliper 14. A detection scale 18 is fixed on one side of the movable caliper 17, and a movable strip 15 is connected to the bottom end of the detection scale 18. A positioning screw 19 is connected to the outside of the movable caliper 17. A fixed scale 1401 is fixed on one side of the vernier caliper 14, and the detection scale 18 is slidably connected to the vernier caliper 14 through the movable caliper 17. In this embodiment, the adjusting mechanism 8 is used to push the vernier caliper 14 back and forth until the fixed scale 1401 and the detection scale 18 are against the pipe, and the fixed scale 1401 is against one side of the circumferential weld formed by the pressure vessel or pressure pipeline. Then, the movable bar 15 is pulled to make the movable caliper 17 move back and forth along the vernier caliper 14, thereby adjusting the position of the detection scale 18. Then, the positioning screw 19 is tightened to fix the position of the movable caliper 17 until the detection scale 18 is against the other side of the circumferential weld. The width of the circumferential weld can be obtained by reading the distance between the fixed scale 1401 and the detection scale 18, thus completing the measurement. The measurement is accurate and convenient.

[0019] Example 2 differs from Example 1 in that it utilizes supporting components to achieve the supporting positioning of the pressure vessel and pressure pipeline, ensuring the stability of weld inspection. Therefore, the following technical solution is disclosed. Please refer to the details. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The base 1 is evenly provided with supporting components. The supporting components include support strips 16 connected between the outer frames 4. Both sides of the support strips 16 are connected with movable columns 10. One end of each movable column 10 is connected with a support spring 11. One end of each support spring 11 is connected with a swing arm 6. One end of each swing arm 6 is movably connected with an inner roller 7. One side of each swing arm 6 is movably connected with a corner plate 12 through a movable shaft. The corner plate 12 is connected to one side of the base 1 and the first ring clamp 2 respectively. There are two swing arms 6 and two inner rollers 7 on one side of the first ring clamp 2 and the second ring clamp 3. The swing arms 6 and the inner rollers 7 on the first ring clamp 2 and the second ring clamp 3 are symmetrically distributed about the central axis of the base 1. In this embodiment, when the pressure vessel or pressure pipeline is inserted between the first and second clamps 2 and 3 respectively, multiple swing arms 6 in conjunction with the inner roller 7 can support the pressure vessel or pipeline. The support spring 11 connected to one side of the swing arm 6 provides elastic support and allows the pressure pipeline or pressure vessel to rotate freely, thereby adjusting the position of the circumferential weld detection and achieving the detection of circumferential welds in different dimensions, thus improving the comprehensiveness of the detection.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A novel weld inspection ruler for the supervision and inspection of pressure vessels and pressure pipelines, comprising two bases (1), a first ring clamp (2), and a second ring clamp (3), wherein both sides of the two bases (1) are connected to hinges (101), and one side of the hinges (101) is connected to the first ring clamp (2) and the second ring clamp (3). Its features are: One end of the first ring clamp (2) and the second ring clamp (3) are respectively connected to a docking block (201) and a connecting block (301). A fixing bolt (5) is connected between the docking block (201) and the connecting block (301). An outer frame (4) is connected to one side of the first ring clamp (2) and the second ring clamp (3), and an adjustment mechanism (8) is provided on one side of the outer frame (4). Supporting components are evenly arranged inside the base (1).

2. The novel weld inspection ruler for pressure vessels and pressure pipelines according to claim 1, characterized in that: The bases (1) are connected by overlapping strips (9), and the circumferential clamps (2) are connected by connecting columns (13).

3. A novel weld inspection ruler for monitoring and inspecting pressure vessels and pressure pipelines according to claim 1, characterized in that: The supporting component includes a support strip (16) connected between the outer frame (4), and both sides of the support strip (16) are connected to movable columns (10), and one end of each movable column (10) is connected to a support spring (11), and one end of each support spring (11) is connected to a swing arm (6).

4. A novel weld inspection ruler for monitoring and inspecting pressure vessels and pressure pipelines according to claim 3, characterized in that: One end of each swing arm (6) is movably connected to an inner roller (7), and one side of each swing arm (6) is movably connected to a corner plate (12) via a movable shaft. The corner plate (12) is connected to the base (1) and the side of the circumferential clamp (2) respectively.

5. A novel weld inspection ruler for monitoring and inspecting pressure vessels and pressure pipelines according to claim 3, characterized in that: Two swing arms (6) and two inner rollers (7) are provided on one side of the first ring clamp (2) and the second ring clamp (3). The swing arms (6) and the inner rollers (7) on the first ring clamp (2) and the second ring clamp (3) are symmetrically distributed about the central axis of the base (1).

6. A novel weld inspection ruler for monitoring and inspecting pressure vessels and pressure pipelines according to claim 1, characterized in that: The adjustment mechanism (8) includes a support bar (801), and there are two support bars (801), both of which are fixed to one side of the outer frame (4). Two connecting bars (807) are connected between the support bars (801). A support seat (802) is connected to one side of the top of each connecting bar (807), and an adjustment screw (803) is connected between the support seats (802). One end of the adjustment screw (803) is connected to a handle (804).

7. A novel weld inspection ruler for monitoring and inspecting pressure vessels and pressure pipelines according to claim 6, characterized in that: The adjusting screw (803) is threaded to a movable seat (805) on the outside, and a push bar (806) is connected to one side of the movable seat (805). A power push frame (808) is connected to the other side of the movable seat (805). A measuring component is provided between the power push frame (808) and the push bar (806).

8. A novel weld inspection ruler for monitoring and inspecting pressure vessels and pressure pipelines according to claim 7, characterized in that: The movable seat (805) has guide components on both sides inside. The guide components include a shaft seat fixed to the top of the connecting bar (807). A guide post is connected between the shaft seats and passes through the movable seat (805) and is slidably connected to the movable seat (805).

9. A novel weld inspection ruler for monitoring and inspecting pressure vessels and pressure pipelines according to claim 7, characterized in that: The measuring component includes a vernier caliper (14) connected between the push bar (806) and the power push frame (808), and a movable caliper (17) is movably sleeved on the outside of the vernier caliper (14). A detection scale (18) is fixed on one side of the movable caliper (17), and a movable strip (15) is connected to the bottom end of the detection scale (18). A positioning screw (19) is connected to the outside of the movable caliper (17).

10. A novel weld inspection ruler for monitoring and inspecting pressure vessels and pressure pipelines according to claim 9, characterized in that: The vernier caliper (14) has a fixed scale (1401) on one side, and the detection scale (18) is slidably connected to the vernier caliper (14) through the movable caliper (17).

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