Equipment and method for eliminating internal residual stress of hot wall hydrogenation reactor
By designing a device that includes a mounting frame, main cylinder, punch, and ultrasonic transducer, the residual stress in the weld of the hot-wall hydrogenation reactor was uniformly and completely eliminated, solving the problem of operation relying on worker experience in the prior art and improving the service life and maintenance efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-04-07
AI Technical Summary
Existing ultrasonic impact equipment relies on operator experience when eliminating residual stress in welds of hot-wall hydrogenation reactors, resulting in uneven impact effects, incomplete stress elimination in some areas, failure to meet accuracy requirements, and high equipment maintenance costs.
Design a device comprising a mounting bracket, a main cylinder, a first punch, a second punch, an adjustment mechanism, and an ultrasonic transducer. Control the movement of the first and second punches through a drive assembly and a transmission assembly, and combine the vibration of the ultrasonic transducer to achieve uniform impact on the weld surface and weld toe.
It improves the uniformity and thoroughness of weld stress relief, extends the service life of the impact pin, reduces equipment maintenance costs, and meets the precision requirements of hot-wall hydrogenation reactors for weld stress relief.
Smart Images
Figure CN121802152A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of metal material processing, in particular to a residual stress elimination device and method for a hot-wall hydrogenation reactor. BACKGROUND
[0002] In the field of petrochemical industry, the hot-wall hydrogenation reactor is a core pressure-bearing equipment for realizing crude oil hydrofining and hydrocracking, and the structural integrity of the body and the weld of the reactor directly determines the safety and service life of the equipment. The welds of such reactors are mostly prepared by arc welding. Arc welding melts the base metal and filler metal through the electric arc generated between the electrode and the workpiece to form a welded joint structure, which can meet the basic requirements of the hot-wall hydrogenation reactor for weld strength and sealing performance. However, during the arc welding process, the weld area is easily subjected to significant residual tensile stress due to local high-temperature heating and rapid cooling. If this residual stress is not effectively eliminated, it can easily cause weld crack propagation under long-term high-temperature, high-pressure and strong corrosion conditions, and even lead to equipment leakage or failure. Therefore, residual stress elimination after welding is a key link in the manufacture and maintenance of the hot-wall hydrogenation reactor, and the ultrasonic impact device is a core tool for realizing this key link as a matched accessory of the arc welding equipment.
[0003] However, the existing ultrasonic impact device for the hot-wall hydrogenation reactor is mostly in a handheld operation mode, and its impact effect highly depends on the operation method and experience of the workers. For workers with insufficient experience, improper control of the impact angle and force can exacerbate the uneven wear of the impact needle, shorten the service life of the impact needle, and increase the equipment maintenance cost. Meanwhile, the deviation of the operation method can cause uneven transmission of impact energy on the weld surface or weld toe, incomplete stress elimination in some areas, and residual harmful tensile stress, which cannot achieve the ideal stress regulation effect and cannot meet the stringent requirements of the hot-wall hydrogenation reactor for weld stress elimination precision. SUMMARY
[0004] Therefore, it is necessary to provide a residual stress elimination device and method for a hot-wall hydrogenation reactor to solve the problem of inconvenient use of the existing ultrasonic impact device.
[0005] The above-mentioned purpose is achieved by the following technical solutions:
[0006] The application discloses an equipment for eliminating residual stress in a hot-wall hydrogenation reactor, which comprises a mounting frame, a main cylinder, a first punch needle, a second punch needle, an adjusting mechanism and an ultrasonic transducer, wherein the mounting frame is arranged on a plane where a weld is located and slides along the length direction of the weld; the main cylinder is arranged on the mounting frame in the axial direction of the main cylinder and is perpendicular to the plane where the weld is located; the first punch needle and the second punch needle are arranged on the main cylinder in the axial direction of the main cylinder and extend along the axial direction of the main cylinder, and the first punch needle is rotationally connected with the main cylinder, the first punch needle is in contact with the weld toe, and the second punch needle is in contact with the surface of the weld; the adjusting mechanism comprises a mounting disc, a driving assembly and a transmission assembly, the mounting disc is movably arranged in the main cylinder, the first punch needle and the second punch needle are slidably connected with the mounting disc and abut against the mounting disc in the axial direction of the main cylinder; the driving assembly is used for driving the mounting disc to slide in the main cylinder in the width direction of the weld; the transmission assembly is used for controlling the rotation of the first punch needle and the sliding of the second punch needle in the width direction of the weld when the mounting disc slides; and the ultrasonic transducer is used for controlling the vibration of the mounting disc in the axial direction of the main cylinder.
[0007] Preferably, the driving assembly comprises a rotating plate, a sliding plate, a connecting rod and a first motor, a horizontal plate is fixedly arranged in the main cylinder and located on the side of the mounting disc away from the weld, the rotating plate is rotationally arranged on the side of the horizontal plate close to the mounting disc, the sliding plate is slidably arranged in the main cylinder and located between the rotating plate and the mounting disc in the radial direction of the main cylinder, the mounting disc is slidably connected with the sliding plate in the second direction, the second direction is the radial direction of the main cylinder and perpendicular to the first direction, the connecting rod is Z-shaped, one end of the connecting rod penetrates through the sliding plate and is connected with the rotating plate, the connecting rod is slidably connected with the sliding plate in the second direction, the other end of the connecting rod is rotationally connected with the mounting disc and slidably connected with the mounting disc in the first direction, and the first motor is arranged on the horizontal plate and used for driving the rotating plate to rotate.
[0008] Preferably, the main cylinder comprises an upper cylinder and a lower cylinder, the upper cylinder is coaxial with the lower cylinder and rotationally connected with the lower cylinder, the horizontal plate is fixedly arranged in the lower cylinder, the lower cylinder is provided with a bolt, the bolt is threadedly connected with the lower cylinder and can abut against the upper cylinder in the radial direction of the upper cylinder.
[0009] Preferably, the transmission assembly comprises a rotating disc and a rotating wheel, the rotating disc is rotationally arranged in the lower cylinder, the rotating disc is coaxial with the mounting disc and located on the side of the mounting disc close to the weld, the second punch needle penetrates through the rotating disc and is slidably connected with the rotating disc in the radial direction of the rotating disc; the rotating wheel is rotationally arranged in the lower cylinder and engaged with the rotating disc, the rotating wheel is internally provided with a rotating sleeve which slides in the axial direction of the rotating wheel and penetrates through the rotating wheel and the lower cylinder, one end of the rotating sleeve in the lower cylinder is slidably connected with the mounting disc and abuts against the mounting disc in the axial direction of the lower cylinder, and the other end of the first punch needle away from the weld toe is threadedly connected with the rotating sleeve and coaxial with the rotating sleeve.
[0010] Preferably, four second punching needles are arranged along the circumferential direction of the mounting disc, and one hinged plate is arranged between every two adjacent second punching needles, each hinged plate is rotationally connected with the two adjacent second punching needles, and each second punching needle is slidingly connected with the rotating disc along the radial direction of the rotating disc.
[0011] Preferably, the four second punching needles are divided into two groups, each group has two second punching needles, the line connecting the two second punching needles in each group passes through the center of the mounting disc, two groups of mounting holes are formed in the mounting disc, the two groups of mounting holes are symmetric about the center of the mounting disc, each group of mounting holes has a plurality of mounting holes, and the two second punching needles in one group are threadedly connected with the mounting disc through the two groups of mounting holes.
[0012] Preferably, two rotating wheels and two first punching needles are arranged, the two rotating wheels are arranged along the first direction and are engaged with the rotating disc, each first punching needle corresponds to one rotating wheel, and the two first punching needles correspond to the two weld toes of the weld.
[0013] Preferably, the mounting frame comprises a sleeve ring, two supporting legs and a magnetic wheel, the sleeve ring is sleeved on the outer surface of the lower cylinder and is slidingly connected with the upper cylinder, the two supporting legs are arranged on both sides of the sleeve ring in the width direction of the weld and are rotationally connected with the sleeve ring, and the magnetic wheel is rotationally arranged on the supporting leg and is in contact with the plane where the weld is located.
[0014] Preferably, a second motor is arranged on the mounting frame to drive the magnetic wheel to rotate, two connecting plates are rotationally arranged on each supporting leg on both sides in the length direction of the weld, the rotation axis of the connecting plate extends along the length direction of the weld, and the magnetic wheel is connected with the supporting leg through the connecting plate.
[0015] The application further provides a method for eliminating internal residual stress of a hot-wall hydrogenation reactor, comprising the following steps:
[0016] S1, first, place the mounting frame to the position where the weld is located, and align the first punching needle with the weld toe and the second punching needle with the surface of the weld;
[0017] S2, start the driving assembly, the driving assembly controls the mounting disc to slide in the main cylinder, and the sliding mounting disc controls the first punching needle to rotate and the second punching needle to slide along the width direction of the weld through the transmission assembly;
[0018] S3, start the ultrasonic transducer, and the ultrasonic transducer controls the first punching needle and the second punching needle to hit the weld through the mounting disc.
[0019] The beneficial effects of the present application are: the first punch and the second punch are arranged, and the surface and the weld toe of the weld are hit respectively, the stress of the weld area is eliminated, and the efficiency is improved; the mounting frame is arranged, the distance between the main cylinder and the weld is kept unchanged, and the mounting frame can move along the length direction of the weld, the angle and the force of the first punch and the second punch when hitting the weld each time are guaranteed, the weld stress is eliminated more uniformly and more completely; the driving assembly and the transmission assembly are arranged, the first punch rotates when hitting the weld toe, so that the force of the first punch is more uniform, the service life of the first punch is prolonged, and the hitting effect on the weld toe is guaranteed, and the second punch slides in the width direction of the weld, when the mounting frame slides in the length direction of the weld, the surface of the weld is hit more comprehensively, and the efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 A structure schematic view of the internal residual stress elimination equipment of the hot-wall hydrogenation reactor provided by the embodiment of the present application is shown in the figure.
[0021] Figure 2 A top view of the internal residual stress elimination equipment of the hot-wall hydrogenation reactor provided by the embodiment of the present application is shown in the figure.
[0022] Figure 3 A structure schematic view of the lower cylinder of the internal residual stress elimination equipment of the hot-wall hydrogenation reactor provided by the embodiment of the present application is shown in the figure. Figure 2 A sectional view in the direction of A-A.
[0023] Figure 4 A sectional view in the direction of B-B. Figure 3 An enlarged view of the position C.
[0024] Figure 5 A sectional view in the direction of D-D. Figure 2 An enlarged view of the position D.
[0025] Figure 6 A sectional view in the direction of E-E. Figure 5 An enlarged view of the position E.
[0026] Figure 7 A structure schematic view of the mounting disc of the internal residual stress elimination equipment of the hot-wall hydrogenation reactor provided by the embodiment of the present application is shown in the figure.
[0027] Figure 8 A right view of the lower cylinder of the internal residual stress elimination equipment of the hot-wall hydrogenation reactor provided by the embodiment of the present application is shown in the figure.
[0028] Figure 9 A sectional view in the direction of E-E. Figure 8 An enlarged view of the position E.
[0029] Figure 10 A structure schematic view of the mounting disc of the internal residual stress elimination equipment of the hot-wall hydrogenation reactor provided by the embodiment of the present application is shown in the figure.
[0030] Wherein:
[0031] 100, upper cylinder; 101, lower cylinder; 102, first punch pin; 103, second punch pin; 104, mounting disc; 105, rotating plate; 106, sliding plate; 107, connecting rod; 108, first motor; 109, cross plate; 110, first sliding groove; 111, second sliding groove; 112, positioning rod; 113, sliding rail; 114, third sliding groove; 115, rotating disc; 116, rotating wheel; 117, rotating sleeve; 118, fourth sliding groove; 119, hinged plate; 120, mounting hole; 121, collar; 122, leg; 123, magnetic wheel; 124, second motor; 125, connecting plate; 126, ultrasonic transducer; 127, ejector rod. DETAILED DESCRIPTION
[0032] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.
[0033] The serial numbers of components in the present application, such as “first”, “second”, etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The “connection” and “coupling” in the present application include direct and indirect connection (coupling) unless otherwise specified. In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise”, etc. are based on the orientations or positional relationships shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0034] In the present application, unless otherwise explicitly specified and limited, the first feature is “on” or “under” the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature can be directly above or obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature can be directly below or obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0035] As Figures 1 to 10As shown, the embodiment of the present application provides a residual stress elimination device for a hot-wall hydrogenation reactor, which comprises a mounting frame, a main cylinder, a first punch needle 102, a second punch needle 103, an adjusting mechanism and an ultrasonic transducer 126. The mounting frame is arranged on a plane where the weld is located and slides along the length direction of the weld. The main cylinder is arranged on the mounting frame in the axial direction of the main cylinder and is perpendicular to the plane where the weld is located. The first punch needle 102 and the second punch needle 103 are arranged on the main cylinder in the axial direction of the main cylinder and extend along the axial direction of the main cylinder. The first punch needle 102 is rotationally connected with the main cylinder, contacts the weld toe of the weld, and the second punch needle 103 contacts the surface of the weld. The adjusting mechanism comprises a mounting disc 104, a driving assembly and a transmission assembly. The mounting disc 104 is movably arranged in the main cylinder. The first punch needle 102 and the second punch needle 103 are slidably connected with the mounting disc 104 and abut against the mounting disc 104 in the axial direction of the main cylinder. The driving assembly is used to drive the mounting disc 104 to slide in the main cylinder in the width direction of the weld. The transmission assembly is used to control the rotation of the first punch needle 102 and the sliding of the second punch needle 103 in the width direction of the weld when the mounting disc 104 slides. The ultrasonic transducer 126 is used to control the vibration of the mounting disc 104 in the axial direction of the main cylinder.
[0036] Specifically, the ultrasonic transducer 126 is provided with a jacking rod 127 which abuts against the mounting disc 104 in the first direction. The ultrasonic transducer 126 drives the mounting disc 104 to vibrate through the jacking rod 127.
[0037] The first punch needle 102 and the second punch needle 103 are arranged to hit the surface and the weld toe of the weld respectively, eliminate the stress in the weld area, and improve the efficiency. The mounting frame is arranged. The distance between the main cylinder and the weld is kept unchanged, and the mounting frame can move along the length direction of the weld. The angle and the force of the first punch needle 102 and the second punch needle 103 when hitting the weld each time are guaranteed, so that the stress of the weld is eliminated more uniformly and completely. The driving assembly and the transmission assembly are arranged. The first punch needle 102 rotates when hitting the weld toe, so that the force of the first punch needle 102 is more uniform, the service life is prolonged, and the hitting effect on the weld toe is guaranteed. The second punch needle 103 slides in the width direction of the weld. The mounting frame hits the surface of the weld more comprehensively when sliding along the length direction of the weld, and the efficiency is improved.
[0038] In the embodiment, the driving assembly comprises a rotating plate 105, a sliding plate 106, a connecting rod 107 and a first motor 108, a horizontal plate 109 is fixedly installed in the main cylinder, the horizontal plate 109 is located on the side of the mounting disc 104 away from the weld, the horizontal plate 109 passes through the axis of the main cylinder, the rotating plate 105 is rotationally arranged on the side of the horizontal plate 109 close to the mounting disc 104, and the rotating axis of the rotating plate 105 coincides with the axis of the main cylinder; the mounting disc 104 is provided with a first sliding groove 110 and a second sliding groove 111, the extending directions of the first sliding groove 110 and the second sliding groove 111 on the mounting disc 104 are perpendicular to each other. The sliding plate 106 is slidingly arranged in the main cylinder between the rotating plate 105 and the mounting disc 104 in a first direction, the first direction is the radial direction of the main cylinder, the mounting disc 104 is provided with a positioning rod 112, the positioning rod 112 is slidingly arranged in the first sliding groove 110, the mounting disc 104 is slidingly connected with the sliding plate 106 in a second direction through the cooperation of the positioning rod 112 and the first sliding groove 110, the second direction is the radial direction of the main cylinder and is perpendicular to the first direction, the connecting rod 107 is Z-shaped, one end of the connecting rod 107 penetrates through the sliding plate 106 and is connected with the rotating plate 105, the connecting rod 107 is slidingly connected with the sliding plate 106 in the second direction, the other end of the connecting rod 107 is rotationally connected with the mounting disc 104 through the second sliding groove 111 and is slidingly connected with the mounting disc 104 in the first direction, and the connecting rod 107 is located on the side of the gripping plate away from the axis of the main cylinder; the first motor 108 is arranged on the horizontal plate 109 and is used to drive the rotating plate 105 to rotate.
[0039] Specifically, a sliding rail 113 is arranged in the main cylinder, the sliding plate 106 is slidingly arranged in the sliding rail 113 in the first direction, the sliding plate 106 is provided with a third sliding groove 114, the third sliding groove 114 penetrates through the sliding plate 106 in the axial direction of the main cylinder, one end of the connecting rod 107 connected with the rotating plate 105 is slidingly arranged in the third sliding groove 114, and the bending part of the connecting rod 107 is located on the side of the sliding plate 106 close to the mounting disc 104. When the rotating plate 105 drives the connecting rod 107 to rotate, the connecting rod 107 drives the sliding plate 106 and the mounting disc 104 to synchronously slide in the first direction, the mounting disc 104 slides in the second direction relative to the sliding plate 106 under the action of the connecting rod 107, and the sliding path of the mounting disc 104 in the main cylinder is an ellipse, the ellipse has a major axis and a minor axis, the distance between the two top points on the major axis corresponds to the width of the weld, and the second punching needle 103 strikes the surface of the weld in the process of walking along the elliptical path with the mounting disc 104, so that the passing weld can be fully struck when the mounting frame drives the main cylinder to move along the length direction of the weld, and the efficiency is improved.
[0040] In the embodiment, the main cylinder comprises an upper cylinder 100 and a lower cylinder 101, the upper cylinder 100 is coaxial with the lower cylinder 101, and the upper cylinder 100 and the lower cylinder 101 are rotationally connected, the cross plate 109 is fixedly installed in the lower cylinder 101, the lower cylinder 101 is provided with a bolt, the bolt is threadedly connected with the lower cylinder 101 and can abut against the upper cylinder 100 in the radial direction of the upper cylinder 100, so as to limit the relative rotation of the upper cylinder 100 and the lower cylinder 101, when the weld is narrow, the bolt is loosened, and the lower cylinder 101 is rotated to adjust the distance between the two first punching needles 102 in the weld width direction, so that the two first punching needles 102 hammer the weld toes on the weld.
[0041] The bolt is rotated, so that the relative rotation between the upper cylinder 100 and the lower cylinder 101 occurs, thereby adjusting the positions of the two first punching needles 102 according to the distance between the two weld toes on the weld, so that the two first punching needles 102 hammer the two weld toes, so as to adapt to welds of different widths.
[0042] The upper cylinder 100 is provided with a handrail, which facilitates the auxiliary operation of the operator. Meanwhile, the upper cylinder 100 can also be installed on a fixed device to cancel manual operation.
[0043] In the embodiment, the transmission assembly comprises a rotating disc 115 and a rotating wheel 116, the rotating disc 115 is rotationally arranged in the lower cylinder 101, the rotating disc 115 is coaxial with the mounting disc 104 and located on the side of the mounting disc 104 close to the weld, and the second punching needle 103 penetrates through the rotating disc 115 and is slidably connected with the rotating disc 115 in the radial direction of the rotating disc 115; the rotating wheel 116 is rotationally arranged in the lower cylinder 101, and the rotating wheel 116 is engaged with the rotating disc 115, the rotating wheel 116 is internally provided with a rotating sleeve 117 which slides in the axial direction of the rotating wheel 116 and penetrates through the rotating wheel 116 and the lower cylinder 101, the rotating sleeve 117 is key-connected with the rotating wheel 116 to rotate synchronously with the rotating wheel 116, one end of the rotating sleeve 117 located in the lower cylinder 101 is slidably connected with the mounting disc 104 in the axial direction of the lower cylinder 101 and abuts against the mounting disc 104, and the first punching needle 102 is threadedly connected with the rotating sleeve 117 at the end away from the weld toe and coaxial with the rotating sleeve 117.
[0044] Specifically, the rotating disc 115 is provided with a fourth sliding groove 118, and the second punching needle 103 is slidably arranged in the fourth sliding groove 118 in the radial direction of the rotating disc 115 and does not abut against the rotating disc 115. The second punching needle 103 moves along the ellipse through the fourth sliding groove 118 to drive the rotating disc 115 to reciprocatingly rotate around its own axis, and the first punching needle 102 is driven to rotate through the engagement between the rotating disc 115 and the rotating wheel 116, so that the first punching needle 102 can hit the weld toe at different positions, thereby avoiding that the first punching needle 102 uses the same position for a long time and shortens its service life.
[0045] The bolt is rotationally connected with the rotating sleeve 117, and the bolt can abut against the first punching needle 102 along the radial direction of the rotating sleeve 117, so as to limit the relative rotation of the first punching needle 102 and the rotating sleeve 117, and improve the stability of the first punching needle 102 when hitting the weld toe. At the same time, the length of the first punching needle 102 can be adjusted to adapt to different welds.
[0046] In the embodiment, four second punching needles 103 are arranged along the circumferential direction of the mounting disc 104, and one hinged plate 119 is arranged between every two adjacent second punching needles 103. Each hinged plate 119 is rotationally connected with the two adjacent second punching needles 103, and each second punching needle 103 is slidingly connected with the rotating disc 115 along the radial direction of the rotating disc 115. The four second punching needles 103 increase the hitting range of the second punching needles 103, appropriately shorten the elliptical movement path of the mounting disc 104, and appropriately reduce the volume of the lower cylinder 101, thereby facilitating operation and use.
[0047] In the embodiment, the four second punching needles 103 are divided into two groups, each group having two second punching needles 103. The connecting line between the two second punching needles 103 in each group passes through the center of the mounting disc 104. Two groups of mounting holes 120 are formed in the mounting disc 104, and the two groups of mounting holes 120 are symmetric about the center of the mounting disc 104. Each group of mounting holes 120 has a plurality of mounting holes 120 arranged along the radial direction of the mounting disc 104. The two second punching needles 103 in one group are threadedly connected with the mounting disc 104 through the two groups of mounting holes 120. The two groups of mounting holes 120 limit the positions of the four second punching needles 103. The plurality of mounting holes 120 adjust the distance between the two second punching needles 103 in each group, change the size of the elliptical path of each second punching needle 103, and adapt to welds of different widths.
[0048] In the embodiment, the rotating wheel 116 and the first punching needle 102 are both provided with two, each rotating wheel 116 is provided with a rotating sleeve 117, and the two rotating wheels 116 are arranged along the first direction and are respectively engaged with the rotating disc 115. Each first punching needle 102 corresponds to one rotating wheel 116, and the two first punching needles 102 correspond to two weld toes of the weld. The two first punching needles 102 can hit and eliminate the stress of the passing weld in the process of moving the mounting frame relative to the weld, thereby improving the efficiency.
[0049] In the embodiment, the mounting frame comprises a sleeve 121, a leg 122 and a magnetic wheel 123, the sleeve 121 is sleeved on the outer wall of the lower cylinder 101 and is in sliding connection with the upper cylinder 100, the sleeve 121 is provided with a bolt, the bolt is in threaded connection with the sleeve 121, and the sleeve 121 can abut against the upper cylinder 100 in the axial direction of the upper cylinder 100. The leg 122 is provided with two legs 122, the two legs 122 are located on both sides of the sleeve 121 in the weld width direction and are in rotational connection with the sleeve 121 respectively, and the magnetic wheel 123 is rotationally arranged on the leg 122 and is in contact with the plane where the weld is located. The magnetic wheel 123 is magnetically attracted to the hot-wall hydrogenation reactor, so that the distance between the lower cylinder 101 and the weld is relatively stable, and the elimination effect of the weld stress is ensured.
[0050] In the embodiment, the mounting frame 121 is provided with a second motor 124 for driving the magnetic wheel 123 to rotate, two connecting plates 125 are rotationally arranged on each leg 122 on both sides in the weld length direction, the rotation axis of the connecting plate 125 extends along the length direction of the weld, the magnetic wheel 123 is connected with the leg 122 through the connecting plate 125, and the connecting plate 125 enables the magnetic wheel 123 to adapt to the plane where the weld is located, so as to adapt to the weld on different planes.
[0051] The working principle of the equipment for eliminating the residual stress in the hot-wall hydrogenation reactor provided in the above embodiment is as follows:
[0052] Firstly, the magnetic wheel 123 is placed at the position where the weld is located, then the lower cylinder 101 is made to face the weld, then the upper cylinder 100 is slid, so that the second punch 103 is in contact with the surface of the weld, then the bolt on the sleeve 121 is rotated, so that the sleeve 121 abuts against the upper cylinder 100, and the relative position of the sleeve 121 and the upper cylinder 100 is limited. Then the lower cylinder 101 is rotated, the first rotating rod and the second rotating rod are driven to rotate by the lower cylinder 101, so that the two first rotating rods correspond to the two weld toes of the weld; then the first motor 108 is started, the first motor 108 drives the rotating plate 105 to rotate, the rotating plate 105 drives the connecting rod 107 to rotate, the connecting rod 107 drives the sliding plate 106 to slide in the sliding rail 113 in the first direction, and the mounting disc 104 is driven to rotate through the second sliding groove 111, the mounting disc 104 starts to move in an elliptical track through the connection with the sliding plate 106, and the second punch 103 is synchronously moved by the mounting disc 104, the movement path of the second punch 103 is observed, and the position of the second punch 103 on the mounting disc 104 is adjusted, so that the second punch 103 can completely cover the surface of the weld in the width direction of the weld.
[0053] Then the first punch 102 is rotated relative to the sleeve, the length of the first punch 102 is adjusted, so that the first punch 102 can be in contact with the weld toe, then the bolt on the rotating sleeve 117 is rotated, and the relative position of the first punch 102 and the rotating sleeve 117 is fixed.
[0054] Then, the ultrasonic transducer 126 is started, the ultrasonic transducer 126 drives the mounting disc 104 to vibrate through the top rod 127, the mounting disc 104 drives the first punch needle 102 and the second punch needle 103 to vibrate and hit the area where the weld is located, so as to eliminate the residual stress of the weld.
[0055] Then the second motor 124 is started, the second motor 124 drives the magnetic wheel 123 to rotate, the magnetic wheel 123 drives the upper cylinder 100 to move through the supporting leg 122 and the sleeve ring 121, the upper cylinder 100 moves along the length direction of the weld, so that the first punch needle 102 and the second punch needle 103 hit the passing weld. At the same time, the operator holds the handrail on the upper cylinder 100 to assist in operation.
[0056] The second punch needle 103 drives the rotating disc 115 to rotate while the mounting disc 104 moves along the elliptical track, the rotating disc 115 drives the rotating wheel 116 to rotate, the rotating wheel 116 drives the corresponding rotating sleeve 117 and the first punch needle 102 to rotate, the rotation of the first punch needle 102 and the elliptical track movement of the second punch needle 103 can increase the uniformity of the contact between them and the weld, and improve the service life.
[0057] The application also provides a method for eliminating residual stress in a hot-wall hydrogenation reactor, comprising the following steps:
[0058] S1, first, place the mounting frame to the position where the weld is located, and align the first punch needle 102 with the weld toe and the second punch needle 103 with the surface of the weld; at this time, the magnetic wheel 123 is adsorbed on the inner wall of the hot-wall hydrogenation reactor by magnetic force, slightly adjust the position of the magnetic wheel 123, so that the two first punch needles 102 face the two weld toes of the weld, and the two first punch needles 102 are located in front of the second punch needle 103 in the direction in which the magnetic wheel 123 advances.
[0059] S2, start the driving assembly, the driving assembly controls the mounting disc 104 to slide in the main cylinder, the sliding mounting disc 104 controls the first punch needle 102 to rotate and controls the second punch needle 103 to slide along the width direction of the weld through the transmission assembly; specifically, start the first motor 108, the first motor 108 drives the rotating plate 105 to rotate, the rotating plate 105 drives the sliding plate 106 to slide along the first direction and the mounting disc 104 to slide along the second direction relative to the sliding plate 106, so that the mounting disc 104 moves along the elliptical track. The second punch needle 103 drives the rotating disc 115 to rotate along with the elliptical track movement of the mounting disc 104, the rotating disc 115 drives the first punch needle 102 to rotate through the meshing with the rotating wheel 116, the first punch needle 102 can fully contact with the weld toe. The second punch needle 103 moves along the elliptical track with the mounting disc 104, and the plurality of second punch needles 103 completely cover in the width direction of the weld.
[0060] S3, activating the ultrasonic transducer 126, which controls the first punch 102 and the second punch 103 to hit the weld seam through the mounting disc 104.
[0061] The technical features of the above embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, but it should be understood that any combination of the technical features is within the scope of the present disclosure as long as the combination does not result in contradictions.
[0062] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the scope of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.
Claims
1. A device for eliminating residual stress inside a hot-wall hydrogenation reactor, characterized in that, include: The system comprises a mounting frame, a main cylinder, a first punch, a second punch, an adjustment mechanism, and an ultrasonic transducer. The mounting frame is positioned on the plane of the weld and slides along the length of the weld. The main cylinder is slidably mounted on the mounting frame along its own axial direction and is perpendicular to the plane of the weld. The first and second punches are slidably mounted on the main cylinder along its axial direction and extend along the axial direction of the main cylinder. The first punch and the main cylinder are rotatably connected. The first punch contacts the weld toe of the weld, and the second punch contacts the surface of the weld. The adjustment mechanism includes a mounting plate, a drive assembly, and a transmission assembly. The mounting plate is movably mounted inside the main cylinder. The first and second punches are slidably connected to the mounting plate and abut against the mounting plate along the axial direction of the main cylinder. The drive assembly is used to drive the mounting plate to slide within the main cylinder along the width direction of the weld; the transmission assembly is used to control the rotation of the first punch and the sliding of the second punch along the width direction of the weld when the mounting plate slides; the ultrasonic transducer is used to control the vibration of the mounting plate in the axial direction of the main cylinder.
2. The device for eliminating residual stress inside a hot-wall hydrogenation reactor according to claim 1, characterized in that, The drive assembly includes a rotating plate, a sliding plate, a connecting rod, and a first motor. A horizontal plate is fixedly installed inside the main cylinder, located on the side of the mounting plate away from the weld. The rotating plate is rotatably positioned on the side of the horizontal plate close to the mounting plate. The sliding plate is slidably disposed inside the main cylinder along a first direction, located between the rotating plate and the mounting plate. The first direction is the radial direction of the main cylinder. The mounting plate is slidably connected to the sliding plate along a second direction, which is the radial direction of the main cylinder and perpendicular to the first direction. The connecting rod is Z-shaped, with one end passing through the sliding plate and connecting to the rotating plate. The connecting rod is slidably connected to the sliding plate along the second direction, and the other end of the connecting rod is rotatably connected to the mounting plate and slidably connected to the mounting plate along the first direction. The first motor is mounted on the horizontal plate and is used to drive the rotating plate to rotate.
3. The device for eliminating residual stress inside a hot-wall hydrogenation reactor according to claim 2, characterized in that, The main cylinder includes an upper cylinder and a lower cylinder. The upper cylinder and the lower cylinder are coaxial and rotatably connected. A horizontal plate is fixedly installed in the lower cylinder. Bolts are provided on the lower cylinder. The bolts are threadedly connected to the lower cylinder and can abut against the upper cylinder in the radial direction of the upper cylinder.
4. The device for eliminating residual stress inside a hot-wall hydrogenation reactor according to claim 3, characterized in that, The transmission assembly includes a turntable and a rotating wheel. The turntable is rotatably disposed in the lower cylinder. The turntable is coaxial with the mounting plate and is located on the side of the mounting plate closer to the weld. The second punch penetrates the turntable and is slidably connected to the turntable along the radial direction. The rotating wheel is rotatably disposed in the lower cylinder and meshes with the turntable. The rotating wheel has a rotating sleeve inside that slides along the axial direction of the rotating wheel and penetrates the rotating wheel and the lower cylinder. One end of the rotating sleeve located in the lower cylinder is slidably connected to the mounting plate and abuts against the mounting plate along the axial direction of the lower cylinder. The end of the first punch away from the weld toe is threadedly connected to the rotating sleeve, and the two are coaxial.
5. The device for eliminating residual stress inside a hot-wall hydrogenation reactor according to claim 4, characterized in that, There are four second punches, which are arranged along the circumferential direction of the mounting plate. A hinge plate is provided between two adjacent second punches. Each hinge plate is rotatably connected to the two adjacent second punches, and each second punch is slidably connected to the turntable along the radial direction of the turntable.
6. The device for eliminating residual stress inside a hot-wall hydrogenation reactor according to claim 5, characterized in that, The four second punches are divided into two groups, with two punches in each group. The line connecting the two second punches in each group passes through the center of the mounting plate. The mounting plate has two sets of mounting holes, which are symmetrical about the center of the mounting plate. There are multiple mounting holes in each group, and the multiple mounting holes in each group are arranged along the radial direction of the mounting plate. Two second punches in one group are threaded to the mounting plate through the two sets of mounting holes.
7. The device for eliminating residual stress inside a hot-wall hydrogenation reactor according to claim 4, characterized in that, There are two rotating wheels and two first punches. The two rotating wheels are arranged along the first direction and mesh with the turntable respectively. Each first punch corresponds to one rotating wheel, and the two first punches correspond to the two weld toes of the weld.
8. The device for eliminating residual stress inside a hot-wall hydrogenation reactor according to claim 3, characterized in that, The mounting frame includes a collar, legs, and a magnetic wheel. The collar is fitted over the lower cylinder and slidably connected to the upper cylinder. There are two legs, which are located on both sides of the collar in the weld width direction and are rotatably connected to the collar. The magnetic wheel is rotatably mounted on the legs and contacts the plane where the weld is located.
9. The device for eliminating residual stress inside a hot-wall hydrogenation reactor according to claim 8, characterized in that, The mounting frame is equipped with a second motor for driving the magnetic wheel to rotate. Each leg has two connecting plates that rotate on both sides along the length of the weld. The rotation axis of the connecting plates extends along the length of the weld, and the magnetic wheel is connected to the leg through the connecting plates.
10. A method for eliminating residual stress inside a hot-wall hydrogenation reactor, utilizing the residual stress elimination device for a hot-wall hydrogenation reactor as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1. First, place the mounting bracket at the location of the weld, and align the first punch with the weld toe and the second punch with the surface of the weld. S2. Start the drive assembly. The drive assembly controls the mounting plate to slide inside the main cylinder. The sliding mounting plate controls the first punch to rotate and controls the second punch to slide along the width direction of the weld seam through the transmission assembly. S3. Start the ultrasonic transducer. The ultrasonic transducer controls the first and second punches to strike the weld seam through the mounting plate.