An online pipeline weld point leak plugging device and method

Abstract

The present invention discloses an on-line pipeline solder joint leakage plugging device and method, which relates to the technical field of pipeline maintenance. It includes a pipeline, a lower mounting ring and an upper mounting ring. Adjusting screws are threadedly connected to the surfaces of the lower mounting ring and the upper mounting ring. One end of the adjusting screw is fixedly connected to a nut, and the other end of the adjusting screw is fixedly connected to an arc-shaped plate. A solder piece is arranged on the surface of the arc-shaped plate, and a moving component for moving the solder piece is arranged inside the arc-shaped plate. First, the solder piece is pressed against the pipeline, then the solder piece is moved to the leakage point on the surface of the pipeline and all the leakage points of the pipeline are covered, thus completing the precise positioning of the leakage points of the pipeline. Then, the solder piece is welded to the surface of the pipeline by a welding torch, so as to weld and plug the leakage points of the pipeline, solving the problems that when the staff performs spot welding and plugging on the leakage points of the pipeline, they cannot accurately position the leakage points of the pipeline, which is relatively dangerous; sometimes, small leaks are blocked into large leaks, wasting time and effort.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline maintenance, and specifically provides an on-line pipeline solder joint leak plugging device and method. Background Art

[0002] Pipelines are widely used conveying equipment in all walks of life, mainly used for conveying fluid substances such as gases or liquids. Due to the characteristics of some fluids, they will cause certain corrosion to the pipeline during the conveying process, resulting in pipeline leakage. The shape of the leakage point is usually dot-shaped or hole-shaped. After the pipeline leaks, safety accidents may occur, causing unnecessary economic losses. If the pipeline leak is plugged during the shutdown state, it will affect production and cause economic losses. Therefore, it is necessary to eliminate the leakage point in real time on-line at this time.

[0003] Generally, when there is a leak in the pipeline, the conventional leak plugging method is usually that the staff holds a welding torch and directly performs spot welding on the leak point. However, when the staff performs spot welding on the pipeline leak point, they can only visually observe the pipeline leak point for welding, and cannot accurately locate the pipeline leak point. And only by welding the outer surface of the pipeline at the leak point to plug the leak point, the risk is relatively high. Sometimes, small leaks are blocked into large leaks, which is time-consuming and laborious. And for the pipeline after spot welding to plug the leak, due to the poor adhesion at the solder joint, it is still easy to leak again after a period of time. Summary of the Invention

[0004] The purpose of the present invention is to provide an on-line pipeline solder joint leak plugging device and method, which solves the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An on-line pipeline solder joint leak plugging device, including a pipeline, a lower mounting ring and an upper mounting ring. The surfaces of the lower mounting ring and the upper mounting ring are both threadedly connected with adjusting screws. One end of the adjusting screw is fixedly connected with a nut, and the other end of the adjusting screw is fixedly connected with an arc-shaped plate. A welding piece is arranged on the surface of the arc-shaped plate.

[0006] A moving component for moving the welding piece is arranged inside the arc-shaped plate.

[0007] It also includes a fixing component for fixedly installing the lower mounting ring and the upper mounting ring.

[0008] It also includes an adhesion component for adhering the solder joint.

[0009] Optionally, the moving component includes a first chute opened on the surface of the arc-shaped plate. A moving block is slidably connected to the inner wall of the first chute. The welding piece is arranged on the surface of the moving block.

[0010] Optionally, the moving part further includes a moving rod fixedly connected to the side of the moving block. A second sliding groove for the moving rod to extend and slide is provided on the side of the arc-shaped plate. A moving column is fixedly connected to the end of the moving rod extending out of the second sliding groove. An anti-slip pattern one is provided on the surface of the moving column. A stop block is fixedly connected to the surface of the moving rod, and the stop block abuts against the side of the arc-shaped plate.

[0011] Optionally, the fixing part includes fixing blocks fixedly connected to the surfaces of the lower mounting ring and the upper mounting ring;

[0012] It further includes fixing screws. Threaded through holes for the fixing screws to be inserted and adapted are provided on the surfaces of both fixing blocks;

[0013] Two sets of the fixing parts are provided and are symmetrically arranged on the surfaces of the lower mounting ring and the upper mounting ring.

[0014] Optionally, the bonding part includes a liquid storage cylinder provided on the surface of the upper mounting ring;

[0015] It further includes a first connecting block. The upper mounting ring is fixedly connected with a first piston cylinder through the first connecting block. A first connecting pipe is fixedly connected between the first piston cylinder and the liquid storage cylinder. A second connecting pipe is fixedly connected to the surface of the first piston cylinder, and the end of the second connecting pipe is fixedly connected with a liquid outlet hose;

[0016] It further includes a second connecting block. The lower mounting ring is fixedly connected with a second piston cylinder through the second connecting block. An air outlet hose is fixedly connected to the surface of the second piston cylinder.

[0017] Optionally, the bonding part further includes a first piston plate slidably connected to the inner wall of the first piston cylinder. A first piston rod is fixedly connected to the surface of the first piston plate;

[0018] A second piston plate is slidably connected to the inner wall of the second piston cylinder. A second piston rod is fixedly connected to the surface of the second piston plate. A cavity with the same diameter as the first piston rod is provided inside the second piston rod. An elastic protrusion is fixedly connected to the surface of the first piston rod. A slot for the elastic protrusion to be inserted and adapted is provided on the inner wall of the cavity;

[0019] A fixing column is fixedly connected to the surface of the second piston rod. An anti-slip pattern two is provided on the surface of the fixing column.

[0020] Optionally, a first one-way valve is provided on the surface of the first connecting pipe, and a second one-way valve is provided on the surface of the second connecting pipe.

[0021] Optionally, strap seats are provided on the surfaces of both the lower mounting ring and the upper mounting ring, and straps are provided on the strap seats.

[0022] To achieve the above object, the present invention also provides the following technical solution: An online pipeline weld point leakage plugging method, comprising the following steps:

[0023] S1: Fixing the welding piece. Move the upper mounting ring and the lower mounting ring together to the leakage point of the pipeline. Then, through the fixing component, the upper mounting ring and the lower mounting ring can be fixedly installed on the outer surface of the pipeline. Rotate the nut to drive the adjusting screw to rotate, so that the arc plate can move to a position where it abuts against the pipeline. At this time, the fixedly installed upper mounting ring and the lower mounting ring can be jointly fixed on the outer surface of the pipeline, and the welding piece on the arc plate can be tightly pressed against the surface of the pipeline.

[0024] S2: Positioning the welding point. Control the moving component, so that the welding piece can perform a circular motion on the outer surface of the pipeline while tightly pressing against the outer surface of the pipeline, so that the welding piece can be blocked above the leakage point of the pipeline according to the position of the leakage point of the pipeline.

[0025] S3: Welding and plugging. The staff can hold a welding torch and weld the welding piece and the pipeline. After the welding of the welding piece and the pipeline is completed, the leakage point of the pipeline will also be blocked by the welded welding piece, so that the real-time online welding and plugging of the leakage point of the pipeline can be completed.

[0026] S4: Bonding treatment. Under the action of the bonding component, first blow off the welding ash and welding slag at the welding and plugging part, and then bond the welded area with a high-temperature resistant steel plate acid-resistant water-blocking adhesive.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] First, the present invention first presses the welding piece against the pipeline, then moves the welding piece to the leakage point on the surface of the pipeline and covers all the leakage points of the pipeline, so as to complete the accurate positioning of the leakage point of the pipeline. Then, weld the welding piece on the surface of the pipeline with a welding torch to weld and plug the leakage point of the pipeline, solving the problem that when the staff performs spot welding and plugging on the leakage point of the pipeline, they can only visually weld the leakage point of the pipeline, cannot accurately position the leakage point of the pipeline, and the risk is relatively large; sometimes, small leaks are blocked into large leaks, which is time-consuming and laborious.

[0029] Second, the present invention sucks the high-temperature resistant steel plate acid-resistant water-blocking adhesive in the liquid storage cylinder into the piston cylinder and then sprays it from the liquid outlet hose to the welded part of the leakage point on the surface of the pipeline, which can enhance the sealing performance at the welding point to prevent the problem of re-leakage due to poor adhesion at the welding point, and further enhances the leakage plugging effect of the device.

[0030] III. After the welding of the leakage points on the surface of the pipeline in the present invention is completed, the air from the outside can be sucked into the first piston cylinder and ejected from the air outlet hose, so that the welding ash and slag at the welding joint of the pipeline and the welding piece can be blown off, thereby enhancing the bonding effect of the high-temperature resistant sticky steel plate acid-proof water-blocking adhesive sprayed subsequently, further enhancing the sealing performance of the welded leakage plugging part, and achieving a better leakage plugging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Isometric view of the structure of the present invention Figure 1 ;

[0032] Figure 2 For the present invention Figure 1 Enlarged view of the structure at position A in the present invention;

[0033] Figure 3 Isometric view of the structure of the present invention Figure 2 ;

[0034] Figure 4 Cross-sectional view of the present invention;

[0035] Figure 5 Cross-sectional view of the structure of the arc-shaped plate in the present invention;

[0036] Figure 6 Flowchart of the use of the present invention.

[0037] In the figure: 1, pipeline; 2, lower mounting ring; 3, upper mounting ring; 4, liquid storage cylinder; 5, first piston cylinder; 6, fixing screw; 7, fixing block; 8, second piston cylinder; 9, arc-shaped plate; 10, adjusting screw; 11, nut; 12, second chute; 13, stop block; 14, moving rod; 15, first anti-slip pattern; 16, moving column; 17, welding piece; 18, first connecting pipe; 19, first check valve; 20, second check valve; 21, liquid outlet hose; 22, strap; 23, strap seat; 25, fixing column; 26, first piston plate; 27, first piston rod; 28, second piston rod; 29, elastic protrusion; 30, cavity; 31, air outlet hose; 32, moving block; 33, first chute. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1 to 6, the present invention provides a technical solution: an on-line pipeline weld point leakage plugging device and method, including a pipeline 1, a lower mounting ring 2 and an upper mounting ring 3. Adjusting screws 10 are threadedly connected to the surfaces of the lower mounting ring 2 and the upper mounting ring 3. One end of the adjusting screw 10 is fixedly connected to a nut 11, and the other end of the adjusting screw 10 is fixedly connected to an arc-shaped plate 9. A welding piece 17 is arranged on the surface of the arc-shaped plate 9;

[0040] A moving component for moving the welding piece 17 is arranged inside the arc-shaped plate 9;

[0041] It further includes a fixing component for fixedly installing the lower mounting ring 2 and the upper mounting ring 3;

[0042] It further includes an adhesive component for bonding the weld point.

[0043] More specifically, when in use in this embodiment, the upper mounting ring 3 and the lower mounting ring 2 are jointly moved to the leakage point of the pipeline 1 where leakage occurs, and then through the fixing component, the upper mounting ring 3 and the lower mounting ring 2 can be fixedly installed on the outer surface of the pipeline 1.

[0044] Then, by rotating the nut 11 to drive the adjusting screw 10 to rotate, the arc-shaped plate 9 can be moved to a position where it abuts against the pipeline 1. At this time, the fixedly installed upper mounting ring 3 and lower mounting ring 2 can be jointly fixed on the outer surface of the pipeline 1. The movement of the arc-shaped plate 9 will also drive the welding piece 17 to move, so that the welding piece 17 can be pressed tightly against the surface of the pipeline 1.

[0045] Then, by controlling the moving component, the welding piece 17 can perform a circular motion on the outer surface of the pipeline 1 while being pressed tightly against the outer surface of the pipeline 1, so that according to the position of the leakage point of the pipeline 1, the welding piece 17 can be blocked above the leakage point of the pipeline 1.

[0046] Then, the staff can hold a welding torch and weld the welding piece 17 and the pipeline 1. After the welding piece 17 is welded to the pipeline 1, the leakage point of the pipeline 1 will also be blocked by the welded welding piece 17, so that the real-time on-line welding and leakage plugging of the leakage point of the pipeline 1 can be completed.

[0047] In summary, first make the welding piece 17 press tightly against the pipeline 1, and then move the welding piece 17 to the leakage point of the pipeline 1 to complete the precise positioning of the leakage point of the pipeline 1. Then, the leakage point is welded and plugged through the welding piece 17, solving the problem that when the staff performs spot welding and leakage plugging on the leakage point of the pipeline 1, they can only visually observe the leakage point of the pipeline 1 for welding, cannot accurately position the leakage point of the pipeline 1, and only block the leakage point by welding the outer surface of the pipeline at the leakage point, which is more dangerous; sometimes small leaks are blocked into large leaks, wasting time and effort.

[0048] Under the action of the bonding component, the welding ash and slag at the welding leakage plugging point can be blown off first, and then the area where the welding is completed can be bonded through the high-temperature resistant adhesive plate and acid-resistant water plugging adhesive, so as to enhance the sealing performance at the solder joint and avoid leakage at the solder joint again after a period of time due to its poor bonding performance.

[0049] Embodiment 2, on the basis of the above embodiment,

[0050] Furthermore, the moving component, fixed component and bonding component in Embodiment 1 are disclosed. The moving component includes a first sliding groove 33 opened on the surface of the arc plate 9. A moving block 32 is slidably connected to the inner wall of the first sliding groove 33, and the welding piece 17 is arranged on the surface of the moving block 32.

[0051] The moving component further includes a moving rod 14 fixedly connected to the side of the moving block 32. A second sliding groove 12 for the moving rod 14 to extend and slide is opened on the side of the arc plate 9. The end of the moving rod 14 extending out of the second sliding groove 12 is fixedly connected with a moving column 16. Anti-slip lines 15 are arranged on the surface of the moving column 16. A stop block 13 is fixedly connected to the surface of the moving rod 14, and the stop block 13 abuts against the side of the arc plate 9.

[0052] The fixed component includes fixing blocks 7 fixedly connected to the surfaces of the lower mounting ring 2 and the upper mounting ring 3;

[0053] It further includes fixing screws 6. Thread through holes for the fixing screws 6 to be inserted and adapted are opened on the surfaces of the two fixing blocks 7;

[0054] Two groups of fixed components are arranged and symmetrically arranged on the surfaces of the lower mounting ring 2 and the upper mounting ring 3.

[0055] The bonding component includes a liquid storage cylinder 4 arranged on the surface of the upper mounting ring 3;

[0056] It further includes a first connecting block. The upper mounting ring 3 is fixedly connected with a first piston cylinder 5 through the first connecting block. A first connecting pipe 18 is fixedly connected between the first piston cylinder 5 and the liquid storage cylinder 4. A second connecting pipe is fixedly connected to the surface of the first piston cylinder 5, and the end of the second connecting pipe is fixedly connected with a liquid outlet hose 21;

[0057] It further includes a second connecting block. The lower mounting ring 2 is fixedly connected with a second piston cylinder 8 through the second connecting block. An air outlet hose 31 is fixedly connected to the surface of the second piston cylinder 8.

[0058] The bonding component further includes a first piston plate 26 slidably connected to the inner wall of the first piston cylinder 5. A first piston rod 27 is fixedly connected to the surface of the first piston plate 26;

[0059] A piston plate two is slidably connected to the inner wall of the piston cylinder two 8. A piston rod two 28 is fixedly connected to the surface of the piston plate two. A cavity 30 with the same diameter as the piston rod one 27 is formed inside the piston rod two 28. An elastic protrusion 29 is fixedly connected to the surface of the piston rod one 27. A slot for inserting and fitting the elastic protrusion 29 is formed on the inner wall of the cavity 30.

[0060] A fixing column 25 is fixedly connected to the surface of the piston rod two 28. Anti-slip patterns two are provided on the surface of the fixing column 25.

[0061] A check valve one 19 is provided on the surface of the connecting pipe one 18. A check valve two 20 is provided on the surface of the connecting pipe two.

[0062] Strap seats 23 are provided on the surfaces of the lower mounting ring 2 and the upper mounting ring 3. Straps 22 are provided on the strap seats 23.

[0063] More specifically, when in use in this embodiment, the upper mounting ring 3 and the lower mounting ring 2 are jointly moved to the leakage point of the pipeline 1 where leakage occurs. The fixing blocks 7 on both sides of the upper mounting ring 3 and the lower mounting ring 2 are opposite to each other, and then the fixing screws 6 are inserted into the threaded through holes of the two fixing blocks 7. Under the action of the fixing screws 6 and the fixing blocks 7, the lower mounting ring 2 and the upper mounting ring 3 can be fixedly installed.

[0064] Then, turn the four nuts 11 respectively to drive the adjusting screw 10 to rotate. The rotation of the adjusting screw 10 will drive the arc-shaped plate 9 to move towards the pipeline 1 until the four arc-shaped plates 9 are all abutted against the surface of the pipeline 1. At this time, the welding pads 17 on the arc-shaped plate 9 can be closely adhered to the surface of the pipeline 1.

[0065] Then, according to the leakage point position of the pipeline 1, the staff holds the moving column 16 closest to the leakage point position of the pipeline 1. The anti-slip patterns one 15 on the surface of the moving column 16 can enhance the friction between the staff's hand and the surface of the moving column 16 to avoid slipping.

[0066] By moving the moving column 16, the moving rod 14 is driven to move in the chute two 12. The movement of the moving rod 14 will drive the moving block 32 to slide in the chute one 33. The sliding of the moving block 32 will drive the welding pad 17 to move on the surface of the pipeline 1, so that the welding pad 17 can be accurately covered on the leakage point according to the leakage point position of the pipeline 1.

[0067] Since the welding pad 17 is always closely adhered to the surface of the pipeline 1, after the welding pad 17 is accurately covered on the leakage point of the pipeline 1, at this time, the staff's hand is separated from the moving column 16. Under the action of the friction force, the welding pad 17 will be fixed at the leakage point of the pipeline 1 and will not move easily.

[0068] At this time, the staff can take out the welding gun and weld the welding piece 17 to the surface of the pipe 1, so as to accurately block the leaking point of the pipe 1 through the welding piece 17.

[0069] It is worth noting that Figure 1 and Figure 2 As shown, since the width of the welding piece 17 is greater than the width of the arc plate 9, when the staff takes out the welding gun for welding, Figure 1 The welding piece 17 is welded in the front direction of the upper mounting ring 3 and the lower mounting ring 2, so that a part of the welding piece 17 is first welded and fixed to the surface of the pipe 1, and then the adjusting screw 10 on the corresponding arc plate 9 is rotated in the opposite direction to separate the arc plate 9 from the welding piece 17. At this time, the arc plate 9 will not block the welding of the welding piece 17. Then the welding piece 17 is completely welded to the surface of the pipe 1 to complete the welding of the leak point on the surface of the pipe 1.

[0070] like Figure 3 and Figure 4 As shown, when the fixing blocks 7 on both sides of the upper mounting ring 3 and the lower mounting ring 2 are aligned with each other, the piston rod 1 27 will be inserted into the cavity 30 inside the piston rod 2 28, and as the piston rod 1 27 is inserted, the elastic protrusion 29 on the surface of the piston rod 1 27 will also enter the slot on the inner wall of the cavity 30, that is, at this time, the piston rod 1 27 will complete the fixation with the piston rod 2 28.

[0071] After the welding of the leaking point on the surface of the pipe 1 is completed, first remove the strap 22 on the surface of the air outlet hose 31, and then align the end of the air outlet hose 31 with the welding point of the leaking point on the surface of the pipe 1, and move the fixing column 25 downward. The anti-slip texture on the surface of the fixing column 25 can also prevent the staff from slipping when moving the fixing column 25. The downward movement of the fixing column 25 will drive the piston rod 2 28 and the piston rod 1 27 to move downward synchronously.

[0072] The downward movement of the piston rod 28 will drive the piston plate 2 to move downward inside the piston cylinder 28, so that the air inside the piston cylinder 28 can be discharged from the air outlet hose 31, and the welding ash and welding slag at the welding leak can be blown off.

[0073] The downward movement of the piston rod 27 will cause the piston plate 26 to move downward. Since the flow direction of the one-way valve 19 on the surface of the connecting pipe 18 is from the liquid storage cylinder 4 to the inside of the piston cylinder 5, and the flow direction of the one-way valve 2 is from the piston cylinder 5 to the liquid outlet hose 21, the downward movement of the piston plate 26 will absorb the high-temperature resistant steel plate adhesive and acid-resistant water-blocking adhesive in the liquid storage cylinder 4 into the piston cylinder 5.

[0074] Next, reset the air outlet hose 31 and fix the air outlet hose 31 with the strap 22 on the lower mounting ring 2. Then, release the fixing of the liquid outlet hose 21 by the strap 22 on the upper mounting ring 3, and align the end of the liquid outlet hose 21 with the welding point of the leak on the surface of the pipeline 1. Then, pull up the fixing column 25 to drive the second piston rod 28 and the first piston rod 27 to move upward and reset.

[0075] The upward movement of the first piston rod 27 will spray the high-temperature resistant sticky steel plate acid-resistant water-blocking adhesive in the first piston cylinder 5 to the welding point of the leak on the surface of the pipeline 1, which can enhance the sealing performance of the welding point and avoid the problem of leakage again after a period of time due to the poor adhesion of the welding point.

[0076] The upward movement of the second piston rod 28 will suck the outside air back into the second piston cylinder 8 from the air outlet hose 31 for the next use.

[0077] After the high-temperature resistant sticky steel plate acid-resistant water-blocking adhesive is sprayed, the liquid outlet hose 21 can be fixed again by the strap 22 on the upper mounting ring 3.

[0078] Then, take out the fixing screw 6 from the two fixing blocks 7, and then pull up the upper mounting ring 3 to drive the first piston rod 27 to move upward, so that the elastic protrusion 29 on the surface of the first piston rod 27 disengages from the slot on the inner wall of the cavity 30, and the first piston rod 27 can be taken out of the cavity 30 of the second piston rod 28. At this time, the leak stoppage device can be removed.

[0079] Working principle: For this online pipeline welding point leak stoppage device and method, during use, move the upper mounting ring 3 and the lower mounting ring 2 together to the leak point of the pipeline 1 leakage, and then insert the fixing screw 6 into the threaded through holes of the two fixing blocks 7 to complete the fixed installation of the lower mounting ring 2 and the upper mounting ring 3.

[0080] Rotate the four nuts 11 to drive the adjusting screw 10 to rotate, so that the arc-shaped plate 9 moves towards the direction close to the pipeline 1 until the four arc-shaped plates 9 are all abutted against the surface of the pipeline 1. At this time, the welding piece 17 on the arc-shaped plate 9 can be closely attached to the surface of the pipeline 1.

[0081] Then, according to the leak point position of the pipeline 1, the staff holds the moving column 16 closest to the leak point position of the pipeline 1, and by moving the moving column 16, drives the moving rod 14 to move in the second chute 12. The movement of the moving rod 14 will drive the moving block 32 to slide in the first chute 33. The sliding of the moving block 32 will drive the welding piece 17 to move on the surface of the pipeline 1, so that the welding piece 17 can be accurately covered on the leak point according to the leak point position of the pipeline 1.

[0082] At this time, the staff can take out the welding torch and weld the entire welding piece 17 on the surface of the pipeline 1, so that the leakage point of the pipeline 1 can be accurately blocked by welding with the welding piece 17, effectively solving the problem that when the staff spot-welds and plugs the leakage point of the pipeline 1, they can only visually observe the leakage point of the pipeline 1 for welding, unable to accurately locate the leakage point of the pipeline 1, and only welding the outer surface of the pipeline with the leakage point to block the leakage point, which is relatively dangerous; sometimes it will also block small leaks into large leaks, wasting time and effort.

[0083] After the welding of the leakage point on the surface of the pipeline 1 is completed, first remove the strap 22 on the surface of the air outlet hose 31, align the end of the air outlet hose 31 with the welding place of the leakage point on the surface of the pipeline 1, and move the fixed column 25 downward to drive the piston rod two 28 and the piston rod one 27 to move downward synchronously.

[0084] The downward movement of the piston rod two 28 will drive the piston plate two to move downward inside the piston cylinder two 8, so that the air inside the piston cylinder two 8 can be discharged from the air outlet hose 31. At this time, the welding ash and welding slag at the welding and plugging place can be blown off.

[0085] At the same time, the downward movement of the piston rod one 27 will cause the piston plate one 26 to move downward and suck the high-temperature resistant and acid-resistant water-blocking adhesive for steel plates into the piston cylinder one 5 from the liquid storage cylinder 4.

[0086] Then reset the air outlet hose 31 and fix the air outlet hose 31 through the strap 22 on the lower mounting ring 2. Then remove the liquid outlet hose 21 from the strap 22 on the upper mounting ring 3, align the end of the liquid outlet hose 21 with the welding place of the leakage point on the surface of the pipeline 1, and then pull the fixed column 25 upward to drive the piston rod two 28 and the piston rod one 27 to move upward and reset.

[0087] The upward movement of the piston rod one 27 will spray the high-temperature resistant and acid-resistant water-blocking adhesive for steel plates in the piston cylinder one 5 to the welding place of the leakage point on the surface of the pipeline 1, which can enhance the sealing performance of the welding point to avoid the problem of re-leakage due to poor adhesion at the welding point after a period of time.

[0088] The upward movement of the piston rod two 28 will suck the outside air back into the piston cylinder two 8 from the air outlet hose 31 for the next use.

[0089] After the spraying of the high-temperature resistant and acid-resistant water-blocking adhesive for steel plates is completed, the liquid outlet hose 21 can be fixed again through the strap 22 on the upper mounting ring 3. Take out the fixing screw 6 from the two fixing blocks 7, pull the upper mounting ring 3 upward to drive the piston rod one 27 to move upward so that the elastic protrusion 29 on the surface of the piston rod one 27 disengages from the slot on the inner wall of the cavity 30, and the piston rod one 27 can be taken out of the cavity 30 of the piston rod two 28. At this time, the plugging device can be removed.

[0090] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An online pipeline welding point plugging device, comprising a pipeline (1), a lower mounting ring (2) and an upper mounting ring (3), characterized in that: The surfaces of the lower mounting ring (2) and the upper mounting ring (3) are both threadedly connected with an adjusting screw (10), one end of the adjusting screw (10) is fixedly connected with a nut (11), and the other end of the adjusting screw (10) is fixedly connected with an arc plate (9), and a welding piece (17) is provided on the surface of the arc plate (9); A moving component for moving the welding piece (17) is provided inside the arc-shaped plate (9); It also includes a fixing component for fixing the lower mounting ring (2) and the upper mounting ring (3); Also included are adhesive components for bonding solder joints; The adhesive component comprises a liquid storage cylinder (4) arranged on the surface of the upper mounting ring (3); It also includes a connecting block 1, the upper mounting ring (3) is fixedly connected to a piston cylinder 1 (5) through the connecting block 1, a connecting pipe 1 (18) is fixedly connected between the piston cylinder 1 (5) and the liquid storage cylinder (4), a surface of the piston cylinder 1 (5) is fixedly connected to a connecting pipe 2, and the end of the connecting pipe 2 is fixedly connected to a liquid outlet hose (21); It also includes a second connecting block, the lower mounting ring (2) is fixedly connected to a second piston cylinder (8) through the second connecting block, and the surface of the second piston cylinder (8) is fixedly connected to an air outlet hose (31); The bonding component further comprises a piston plate 1 (26) slidably connected to the inner wall of the piston cylinder 1 (5), and a piston rod 1 (27) is fixedly connected to the surface of the piston plate 1 (26); The inner wall of the second piston cylinder (8) is slidably connected to the second piston plate, the surface of the second piston plate is fixedly connected to the second piston rod (28), the interior of the second piston rod (28) is provided with a cavity (30) having the same diameter as the first piston rod (27), the surface of the first piston rod (27) is fixedly connected to an elastic protrusion (29), and the inner wall of the cavity (30) is provided with a slot for the elastic protrusion (29) to be inserted and adapted; The surface of the second piston rod (28) is fixedly connected to a fixing column (25), and the surface of the fixing column (25) is provided with a second anti-slip pattern.

2. The online pipeline welding point plugging device according to claim 1, characterized in that: The moving component includes a slide groove (33) provided on the surface of the arc-shaped plate (9), the inner wall of the slide groove (33) is slidably connected to a moving block (32), and the welding piece (17) is provided on the surface of the moving block (32).

3. The online pipeline welding point plugging device according to claim 2, characterized in that: The moving component also includes a moving rod (14) fixedly connected to the side of the moving block (32), and a second slide groove (12) for the moving rod (14) to extend and slide is opened on the side of the arc plate (9), and the end of the moving rod (14) extending from the second slide groove (12) is fixedly connected to a moving column (16), and the surface of the moving column (16) is provided with a first anti-slip pattern (15), and the surface of the moving rod (14) is fixedly connected to a stopper (13), and the stopper (13) abuts against the side of the arc plate (9).

4. The online pipeline welding point plugging device according to claim 1, characterized in that: The fixing component comprises a fixing block (7) fixedly connected to the surfaces of the lower mounting ring (2) and the upper mounting ring (3); It also includes a fixing screw (6), and the surfaces of the two fixing blocks (7) are each provided with a threaded through hole for the fixing screw (6) to be inserted and adapted; The fixing components are provided in two groups and are symmetrically arranged on the surfaces of the lower mounting ring (2) and the upper mounting ring (3).

5. The online pipeline welding point plugging device according to claim 1, characterized in that: A one-way valve (19) is provided on the surface of the connecting pipe (18), and a one-way valve (20) is provided on the surface of the connecting pipe (2).

6. The online pipeline welding point plugging device according to claim 1, characterized in that: The surfaces of the lower mounting ring (2) and the upper mounting ring (3) are both provided with a strap seat (23), and a strap (22) is provided on the strap seat (23).

7. An online pipeline weld point plugging method, applied to an online pipeline weld point plugging device according to any one of claims 1 to 6, comprising the following steps: S1: The welding piece is fixed, and the upper mounting ring (3) and the lower mounting ring (2) are moved together to the leakage point where the pipeline (1) leaks, and then the upper mounting ring 3 and the lower mounting ring 2 are fixedly mounted on the outer surface of the pipeline (1) through the fixing component, and the nut (11) is turned to drive the adjusting screw (10) to rotate, so that the arc plate (9) is moved to a position abutting against the pipeline (1), and at this time, the fixed upper mounting ring (3) and the lower mounting ring (2) can be fixed together on the outer surface of the pipeline (1), and the welding piece (17) on the arc plate (9) is tightly attached to the surface of the pipeline (1); S2: Positioning the welding point and controlling the moving parts so that the welding piece (17) can move in a circular motion on the outer surface of the pipe (1) while being in close contact with the outer surface of the pipe (1), thereby blocking the welding piece (17) above the leaking point of the pipe (1) according to the position of the leaking point of the pipe (1); S3: Welding and plugging the leak. The worker can hold the welding gun and weld the welding piece (17) and the pipe (1). After the welding of the welding piece (17) and the pipe (1) is completed, the leak point of the pipe (1) will also be plugged by the welded welding piece (17), thereby completing the real-time online welding plugging of the leak point of the pipe (2); S4: Bonding treatment: Under the action of the bonding component, the welding ash and welding slag at the welding plugging area can be blown off first, and then the welded area can be bonded with the high-temperature resistant steel plate acid-resistant water-blocking adhesive.

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