Phased array detection equipment for fillet weld of tube socket and detection method of phased array detection equipment

Abstract

The invention relates to the technical field of phased array detection, in particular to equipment for phased array detection of tube socket fillet welds.The equipment comprises a bearing seat, equipment bodies are symmetrically and fixedly arranged on the bearing seat, display screens are installed on the equipment bodies, a retraction cavity is formed in the rear end of each equipment body, and a movable detection mechanism is installed in each retraction cavity; the mobile detection mechanism is inserted into the retraction cavity when not performing detection work and is protected through the retraction cavity, upper jacking blocks are symmetrically and fixedly arranged at the upper end of the equipment main body, a mobile protection assembly is borne on the upper jacking blocks, and the display screen is protected through the mobile protection assembly; the invention further relates to a phased array detection method for the fillet weld of the tube socket. The phased array detection method comprises the following steps: step 1, outward movement of the detection frame; 2, the perspective protection plate is far away; 3, positioning the bearing seat; and step 4, weld joint detection.

Description

Technical Field

[0001] The invention relates to the technical field of phased array detection, in particular to equipment for phased array detection of pipe seat fillet welds and a detection method thereof. Background Art

[0002] The pipe seat angle usually refers to the fillet weld formed at the connection between the pipe seat and the cylinder or pipe in power plant boilers, pressure vessels and other equipment. This weld is relatively complex in structure and often involves thickness differences and complex shapes. Therefore, defects such as incomplete penetration, lack of fusion and cracks are prone to occur during the welding process. These defects will directly affect the safety and reliability of the equipment, so phased array detection is required to ensure the quality of the weld. Phased array detection is an advanced non-destructive testing method. It uses multiple small ultrasonic probes to form an array and emits and receives ultrasonic waves through electronic control probes to achieve weld detection. However, the existing phased array detection equipment is inconvenient to operate when detecting pipe angle seat welds. It cannot rely on pipelines to fix the equipment, making the positioning of the detection equipment more troublesome and often taking more time, which not only makes the work intensity of the staff greater, but also affects the work efficiency of the detection. In addition, the existing phased array detection equipment itself has poor protection performance. Due to the complex environment of the detection site, it is easy to cause damage to key components. Summary of the invention

[0003] The object of the present invention is to provide a device for phased array detection of pipe seat fillet welds and a detection method thereof, so as to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: The device for phased array detection of pipe socket fillet welds comprises a bearing seat, on which a device body is symmetrically fixedly arranged, on which a display screen is installed, and a retracted chamber is arranged at the rear end of the device body, in which a mobile detection mechanism is installed; When the mobile detection mechanism is not performing detection work, it is inserted into the retracted chamber, and the retracted chamber plays a protective role on it; An upper support block is symmetrically fixedly arranged at the upper end of the device body, and a movable protection component is carried on the upper support block, so that the display screen is protected by the movable protection component; The bearing seat is also provided with a detection driving mechanism, which drives the mobile detection mechanism and the mobile protection component to move, thereby ensuring the detection work is carried out; The mobile detection mechanism and the detection drive mechanism are connected with a device positioning component, and the detection drive mechanism drives the device positioning component to move to realize the positioning of the bearing seat.

[0005] Preferably, the detection drive mechanism comprises a connecting strip, a control strip and a gear, a moving channel is provided on the connecting strip, and mounting channels are symmetrically provided on the connecting strips on both sides of the moving channel; A supporting connecting block is fixedly arranged on the rear end surface of the bearing seat, the connecting strip plate is located at the rear side of the bearing seat, and a bearing inner rod is fixedly arranged in the installation channel.

[0006] Preferably, a mounting sleeve is fixedly provided on the equipment body, a chamber connecting hole is opened inside the mounting sleeve, and the chamber connecting hole is connected with the retracted chamber; Support bars are symmetrically fixedly arranged on both sides of the bearing seat, and limiting through holes are opened on the support bars. A lower bearing block is also symmetrically fixedly arranged on the lower end of the bearing seat, and a bearing through hole is arranged on the lower bearing block.

[0007] Preferably, the two ends of the connecting strip are symmetrically fixed with matching rods, the upper end of the matching rod is fixed with a rack, and the matching rod is sleeved with a first spring; The matching support rod is inserted into the restricted through hole; The rack is meshed with a gear, a support block is fixedly arranged on the gear, a threaded through hole is opened on the support block, and a bearing is sleeved on the support block; The bearing is mounted in a mounting sleeve.

[0008] Preferably, a movable bearing block is installed in the installation channel, a locking plug hole is provided at the lower end of the movable bearing block, and a rod matching hole is also provided on the movable bearing block, and a load-bearing inner rod is inserted into the rod matching hole; The upper end of the movable bearing block is hinged with a first driving rod, and the upper end of the first driving rod is hinged on the supporting connecting block; A control strip is installed on the lower side of the connecting strip, and fixing columns are symmetrically fixed at both ends of the control strip. Before the connecting strip is moved downward, it is fixed by the fixing columns.

[0009] Preferably, a moving matching rod is fixedly provided at the middle position of the control strip, and the moving matching rod is inserted into the moving channel; A matching block is fixedly arranged at the upper end of the movable matching rod, and positioning columns are symmetrically fixedly arranged on the control strips on both sides of the movable matching rod, and the connecting strips are fixed by the positioning columns during the downward movement; An elastic sheet is also fixedly arranged on the control strip, and the upper end of the elastic sheet is fixed on the connecting strip.

[0010] Preferably, the mobile detection mechanism is a detection frame, a detection probe is fixedly mounted on the detection frame, and a threaded carrier rod is also fixedly arranged on the detection frame; The threaded carrier rod passes through the chamber connecting hole and is threadedly inserted into the threaded through hole, and the thread directions of the threaded carrier rods on the two device bodies are opposite; A serial strip is fixedly arranged on the threaded carrier rod, the serial strip is located outside the retracted chamber, and a serial rod is fixedly arranged at the lower end of the serial strip, the serial rod is inserted into the bearing through hole, and a serial rack is fixedly arranged on the serial rod; A second driving rod is hinged on the serial frame, and the second driving rod is connected to a movable protection component.

[0011] Preferably, the movable protection component is a perspective protection plate, an upper top protection plate is fixedly provided on the upper end of the perspective protection plate, and protruding bearing blocks are symmetrically fixedly provided on the upper top protection plate; A support matching rod is fixedly provided on the protruding bearing block, and the support matching rod is inserted into the support through hole; The lower end of the perspective protection plate is hinged to the second driving rod, and a protruding carrier plate is fixedly arranged at the lower end of the perspective protection plate, and a movable plug hole is opened on the protruding carrier plate.

[0012] Preferably, the equipment positioning assembly comprises a mounting support plate and a linkage support block, the mounting support plate is mounted on the perspective protective plate, a positioning support plate is fixedly provided on the upper end of the mounting support plate, and oblique matching plates are symmetrically fixedly provided on the upper and lower ends of the positioning support plate; A movable carrying rod is fixedly arranged at the lower end of the mounting support plate, the movable carrying rod is inserted into the movable insertion hole, and a connecting channel is opened at the lower end of the mounting support plate, and the connecting channel is connected to a linkage support block; The linkage bearing block is inserted in the installation channel, a matching movable hole is provided on the linkage bearing block, a load-bearing inner rod is inserted in the matching movable hole, and a second spring is sleeved on the load-bearing inner rod; A linkage bearing bar is fixedly arranged on the linkage bearing block, a linkage channel is opened on the linkage bearing bar, a channel plug rod is inserted in the linkage channel, a connecting block is fixedly arranged on the channel plug rod, a connecting plug rod is fixedly arranged on the connecting block, and the connecting plug rod is inserted in the connecting channel.

[0013] A phased array detection method for a pipe socket fillet weld comprises the following steps: Step 1: Move the detection frame outward: Pull down the connecting strip to drive the detection frame to move outward, so that the detection probe surrounds the periphery of the weld; Step 2: Move the perspective protective plate away from the main body of the equipment, so that the staff can operate the main body of the equipment more conveniently. Step 3: Positioning of the bearing seat: As the connecting strip moves downward, it will also drive the mounting support plate to move toward each other, so that the oblique matching plate contacts the pipe to clamp the pipe, and then the bearing seat is positioned and fixed on the pipe; Step 4: Weld detection: Detect the weld using a detection probe.

[0014] Compared with the prior art, the invention has the following advantages: 1. When the equipment is not in use, the transparent protective plate can provide good protection for the display screen on the equipment, and the detection frame is in the retracted chamber. In this way, the detection probe on the detection frame can be well protected under the protection of the retracted chamber, which fully ensures the safety of the key components of the equipment. When in use, you only need to pull the connecting strip to position and fix the equipment through the pipeline. The operation is very simple, convenient and fast.

[0015] 2. When the equipment is in use, pull down the connecting strip to drive the detection frame to protrude outside the indented chamber, and make the detection probe outside the weld to wrap it up, so as to facilitate all-round detection. At the same time, as the detection frame moves, it can drive the perspective protective plate to move away from the display screen, so that the perspective protective plate can still protect the display screen while leaving operating space, which is convenient for the staff to operate the main body of the equipment.

[0016] 3. In addition, as the connecting strip moves downward, it will also drive the installation support plate to move, so that the oblique matching plate on the installation support plate will contact the pipe. In this way, the pipe can be tightly clamped under the action of the oblique matching plate, and the equipment can be fixed on the pipe. The oblique matching plates on the positioning support plate are symmetrically arranged up and down under the action of the slope, so that they can adapt to pipes of different diameters within a certain range. It has strong adaptability and can realize rapid positioning of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the first perspective of the bearing seat assembly.

[0018] Figure 2 A schematic diagram of the second perspective of the bearing assembly.

[0019] Figure 3 It is a structural schematic diagram of the bearing seat.

[0020] Figure 4 A first-person view of the assembly of connected strips.

[0021] Figure 5 A second-view diagram of the assembly of connected strips.

[0022] Figure 6 for Figure 5 A magnified schematic diagram of center A.

[0023] Figure 7 Schematic diagram of the structure of the control strip.

[0024] Figure 8 It is the assembly diagram of the detection frame and the perspective protective plate.

[0025] Fig. 9 It is a schematic diagram of the assembly of the perspective protective plate, the mounting plate and the linkage bearing block.

[0026] Fig.10 This is a schematic diagram of the structure for installing the carrier plate.

[0027] In the figure: 1. bearing seat; 11. equipment body; 12. display screen; 13. retracted chamber; 14. upper bearing block; 141. supporting through hole; 15. mounting sleeve; 151. chamber connecting hole; 16. supporting strip; 161. limiting through hole; 17. lower bearing block; 18. bearing through hole; 19. supporting connecting block; 2. connecting strip plate; 21. moving channel; 22. mounting channel; 23. bearing inner rod; 24. matching bearing rod; 25. rack; 26. first spring; 27. movable bearing block; 270. locking socket; 271. rod matching hole; 28. first driving rod; 3. control strip; 31. fixed column; 32. moving matching rod; 33. matching block; 34. elastic sheet; 35. positioning Column; 4. Detection frame; 41. Detection probe; 42. Threaded carrier rod; 43. Gear; 44. Support block; 45. Threaded through hole; 46. Bearing; 47. Serial strip; 48. Serial rod; 49. Serial frame; 491. Second driving rod; 5. Perspective protective plate; 51. Top guard plate; 52. Protruding bearing block; 53. Support matching rod; 54. Protruding carrier plate; 55. Movable plug hole; 6. Mounting bearing plate; 61. Positioning bearing plate; 62. Oblique matching plate; 63. Movable carrier rod; 64. Connecting channel; 7. Linkage bearing block; 71. Matching movable hole; 72. Second spring; 73. Linkage bearing strip; 74. Linkage channel; 75. Channel plug rod; 76. Connecting block; 77. Connecting plug rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The present invention provides a technical solution: like Figure 1 and Figure 2 As shown, the equipment for phased array detection of corner welds of pipe sockets includes a bearing seat 1, on which a device body 11 is symmetrically fixedly arranged, on which a display screen 12 is installed, and a retracted chamber 13 is arranged at the rear end of the device body 11, in which a mobile detection mechanism is installed, and the mobile detection mechanism is plugged into the retracted chamber 13 when not performing detection work, and is protected by the retracted chamber 13, and an upper top bearing block 14 is symmetrically fixedly arranged at the upper end of the device body 11, on which a mobile protective component is carried, and the display screen 12 is protected by the mobile protective component, and a detection drive mechanism is also installed on the bearing seat 1, and the detection drive mechanism drives the mobile detection mechanism and the mobile protective component to move to ensure the detection work, and the mobile detection mechanism and the detection drive mechanism are connected with a device positioning component, and the detection drive mechanism drives the device positioning component to move to realize the positioning of the bearing seat 1.

[0030] like Figure 2 , Figure 4 and Figure 5 As shown, the detection drive mechanism includes a connecting strip 2, a control strip 3 and a gear 43. A moving channel 21 is opened on the connecting strip 2. Installation channels 22 are symmetrically arranged on the connecting strips 2 on both sides of the moving channel 21. A supporting block 19 is fixedly arranged on the rear end surface of the bearing seat 1. The connecting strip 2 is located on the rear side of the bearing seat 1, and a bearing inner rod 23 is fixedly arranged in the installation channel 22.

[0031] like Figure 3 As shown, a mounting sleeve 15 is fixedly provided on the equipment body 11, and a chamber connecting hole 151 is opened inside the mounting sleeve 15, and the chamber connecting hole 151 is connected with the retracted chamber 13, and supporting strips 16 are symmetrically fixedly provided on both sides of the bearing seat 1, and limiting through holes 161 are opened on the supporting strips 16, and a lower supporting block 17 is also symmetrically fixedly provided on the lower end of the bearing seat 1, and a bearing through hole 18 is provided on the lower supporting block 17.

[0032] like Figure 1 and Figure 4 As shown, the two ends of the connecting strip 2 are symmetrically fixed with matching rods 24, the upper end of the matching rod 24 is fixedly provided with a rack 25, and the matching rod 24 is sleeved with a first spring 26, the matching rod 24 is inserted in the limiting through hole 161, the rack 25 is meshed with a gear 43, the gear 43 is fixedly provided with a support block 44, the support block 44 is provided with a threaded through hole 45, and the support block 44 is sleeved with a bearing 46, the bearing 46 is installed in the mounting sleeve 15, and the two ends of the first spring 26 are respectively fixed on the supporting strip 16 and the rack 25.

[0033] like Figure 5 , Figure 6 and Figure 7As shown, a movable bearing block 27 is installed in the installation channel 22, and a locking socket 270 is provided at the lower end of the movable bearing block 27, and a rod matching hole 271 is also provided on the movable bearing block 27, and the load-bearing inner rod 23 is inserted in the rod matching hole 271, and a first driving rod 28 is hinged at the upper end of the movable bearing block 27, and the upper end of the first driving rod 28 is hinged on the supporting connecting block 19, and a control strip 3 is installed on the lower side of the connecting strip 2, and fixed columns 31 are symmetrically fixed at both ends of the control strip 3. Before the connecting strip 2 is not moved downward, it is fixed by the fixed columns 31, that is, the fixed columns 31 are inserted in the locking socket 270 to fix the connecting strip 2.

[0034] like Figure 7 As shown, a moving matching rod 32 is fixedly provided in the middle position of the control strip 3, and the moving matching rod 32 is inserted in the moving channel 21. A matching block 33 is fixedly provided at the upper end of the moving matching rod 32, and positioning columns 35 are symmetrically fixedly provided on the control strips 3 on both sides of the moving matching rod 32. The connecting strips are fixed by the positioning columns 35 during the downward movement. An elastic sheet 34 is also fixedly provided on the control strip 3, and the upper end of the elastic sheet 34 is fixed on the connecting strip 2.

[0035] The positioning column 35 is inserted into the locking hole 270 to fix the connecting strip 2.

[0036] like Figure 1 and Figure 8 As shown, the mobile detection mechanism is a detection frame 4, on which a detection probe 41 is fixedly installed, and a threaded carrier rod 42 is also fixedly arranged on the detection frame 4, the threaded carrier rod 42 passes through the chamber connecting hole 151 and is threadedly inserted in the threaded through hole 45, and the thread directions of the threaded carrier rods 42 on the two device bodies 11 are opposite, a serial strip 47 is fixedly arranged on the threaded carrier rod 42, the serial strip 47 is located on the outside of the retracted chamber 13, and a serial rod 48 is fixedly arranged on the lower end of the serial strip 47, the serial rod 48 is inserted in the bearing through hole 18, and a serial frame 49 is fixedly arranged on the serial rod 48, and a second driving rod 491 is hinged on the serial frame 49, and the second driving rod 491 is connected to a mobile protection component.

[0037] like Figure 1 and Figure 8 As shown, the mobile protective component is a perspective protective plate 5, an upper end of the perspective protective plate 5 is fixedly provided with an upper top protective plate 51, and a protruding support block 52 is symmetrically fixedly provided on the upper top protective plate 51, and a supporting matching rod 53 is fixedly provided on the protruding support block 52, and the supporting matching rod 53 is inserted in the supporting through hole 141, and the lower end of the perspective protective plate 5 is hinged to the second driving rod 491, and a protruding carrier plate 54 is also fixedly provided at the lower end of the perspective protective plate 5, and a movable socket 55 is opened on the protruding carrier plate 54.

[0038] like Figure 1 and Fig.10 As shown, the equipment positioning assembly includes a mounting support plate 6 and a linkage support block 7. The mounting support plate 6 is mounted on the perspective protective plate 5. A positioning support plate 61 is fixedly arranged on the upper end of the mounting support plate 6. The upper and lower ends of the positioning support plate 61 are symmetrically fixedly arranged with oblique matching plates 62. A movable load rod 63 is fixedly arranged on the lower end of the mounting support plate 6. The movable load rod 63 is plugged into the movable socket 55. A connecting channel 64 is provided at the lower end of the mounting support plate 6. The connecting channel 64 is connected to the linkage support block 7. The linkage support block 7 is plugged into the mounting channel 22. The linkage support block 7 is provided with a matching movable The movable hole 71 cooperates with the movable hole 71 to insert the load-bearing inner rod 23, and the load-bearing inner rod 23 is sleeved with a second spring 72, and the two ends of the second spring 72 are respectively fixed on the inner end surface of the installation channel 22 and the linkage bearing block 7, a linkage bearing strip 73 is fixedly provided on the linkage bearing block 7, a linkage channel 74 is opened on the linkage bearing strip 73, a channel plug rod 75 is inserted in the linkage channel 74, a connecting block 76 is fixedly provided on the channel plug rod 75, a connecting plug rod 77 is fixedly provided on the connecting block 76, and the connecting plug rod 77 is inserted in the connecting channel 64.

[0039] A phased array detection method for a pipe socket fillet weld comprises the following steps: Step 1: Moving the detection frame 4 outward: Pull the connecting strip 2 downward to drive the detection frame 4 to move outward, so that the detection probe 41 surrounds the periphery of the weld; Step 2: Moving away from the perspective protection plate 5: As the detection frame 4 moves outward, it will drive the perspective protection plate 5 to move away from the device body 11, making it easier for the staff to operate the device body 11; Step 3: Positioning of the bearing seat 1: As the connecting strip 2 moves downward, it will also drive the mounting support plate 6 to move toward each other, so that the oblique matching plate 62 contacts the pipe to clamp the pipe, thereby positioning and fixing the bearing seat 1 on the pipe; Step 4: Weld seam detection: The weld seam is detected by the detection probe 41 .

[0040] When testing the weld, place the weld between the two equipment bodies 11, and then push the matching block 33 downward to make it contact with the connecting strip 2. At this time, the fixed column 31 is no longer inserted into the locking hole 270, so that the connecting strip 2 is in an unlocked state. Then pull the connecting strip 2 downward, and under the action of the first driving rod 28, the two movable bearing blocks 27 will be driven to move toward each other. At the same time, the gear 43 will be driven to rotate under the action of the rack 25. As the gear 43 rotates, the threaded carrier rod 42 will be driven to move under the action of the thread, thereby driving the detection frame 4 to move out of the retracted chamber 13, so that the detection probe 41 surrounds the weld, and it can be fully inspected during inspection. The movement of the detection frame 4 will drive the perspective protective plate 5 to move away from the equipment body 11 under the action of the second driving rod 491, so that space for operating the equipment body 11 can be reserved, and it can also be implemented Continuous protection, and at this time, driven by the perspective protective plate 5, the installation support plate 6 is also moved away from the equipment body 11, which is convenient for fixing it and also convenient for working operations on the equipment body 11. As the connecting strip plate 2 moves downward, the rack 25 will no longer mesh with the gear 43. At this time, the movable support block 27 will contact the linkage support block 7. In this way, as the connecting strip plate 2 continues to move downward, the movable support block 27 will drive the linkage support block 7 to move, and then under the action of the linkage support block 7, it will drive the installation support plate 6 to move toward each other so that the oblique matching plate 62 contacts the pipeline. In this way, under the action of the oblique matching plate 62, the pipeline can be clamped, thereby realizing the fixation of the equipment, and it can adapt to the fixation of pipelines of different diameters. After the pipeline is clamped, the control strip 3 is released to reset it under the action of the elastic sheet 34, so that the positioning column 35 is inserted into the locking socket 270. The operation is simple, convenient and fast.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for phased array detection of pipe socket fillet welds, comprising a bearing seat, on which a device body is symmetrically fixed, characterized in that: A display screen is installed on the device body, a retracted chamber is provided at the rear end of the device body, and a mobile detection mechanism is installed in the retracted chamber; When the mobile detection mechanism is not performing detection work, it is inserted into the retracted chamber, and the retracted chamber plays a protective role on it; An upper support block is symmetrically fixedly arranged at the upper end of the device body, and a movable protection component is carried on the upper support block, so that the display screen is protected by the movable protection component; The bearing seat is also provided with a detection driving mechanism, which drives the mobile detection mechanism and the mobile protection component to move, thereby ensuring the detection work is carried out; The mobile detection mechanism and the detection drive mechanism are connected with a device positioning component, and the detection drive mechanism drives the device positioning component to move to realize the positioning of the bearing seat.

2. The device for phased array detection of pipe base fillet welds according to claim 1 is characterized in that: The detection drive mechanism includes a connecting strip, a control strip and a gear, a moving channel is opened on the connecting strip, and installation channels are symmetrically arranged on the connecting strips on both sides of the moving channel; A supporting connecting block is fixedly arranged on the rear end surface of the bearing seat, the connecting strip plate is located at the rear side of the bearing seat, and a bearing inner rod is fixedly arranged in the installation channel.

3. The device for phased array detection of pipe socket fillet welds according to claim 2 is characterized in that: A mounting sleeve is fixedly arranged on the equipment body, a chamber connecting hole is opened inside the mounting sleeve, and the chamber connecting hole is connected with the retracted chamber; Support bars are symmetrically fixedly arranged on both sides of the bearing seat, and limiting through holes are opened on the support bars. A lower bearing block is also symmetrically fixedly arranged on the lower end of the bearing seat, and a bearing through hole is arranged on the lower bearing block.

4. The device for phased array detection of pipe base fillet welds according to claim 3 is characterized in that: The two ends of the connecting strip are symmetrically fixed with matching rods, the upper end of the matching rod is fixed with a rack, and the matching rod is sleeved with a first spring; The matching support rod is inserted into the restricted through hole; The rack is meshed with a gear, a support block is fixedly arranged on the gear, a threaded through hole is opened on the support block, and a bearing is sleeved on the support block; The bearing is mounted in a mounting sleeve.

5. The device for phased array detection of pipe base fillet welds according to claim 4, characterized in that: A movable bearing block is installed in the installation channel, a locking plug hole is provided at the lower end of the movable bearing block, and a rod matching hole is also provided on the movable bearing block, and a load-bearing inner rod is inserted into the rod matching hole; The upper end of the movable bearing block is hinged with a first driving rod, and the upper end of the first driving rod is hinged on the supporting connecting block; A control strip is installed on the lower side of the connecting strip, and fixing columns are symmetrically fixed at both ends of the control strip. Before the connecting strip is moved downward, it is fixed by the fixing columns.

6. The device for phased array detection of pipe socket fillet welds according to claim 5, characterized in that: A moving matching rod is fixedly arranged at the middle position of the control strip, and the moving matching rod is inserted into the moving channel; A matching block is fixedly arranged at the upper end of the movable matching rod, and positioning columns are symmetrically fixedly arranged on the control strips on both sides of the movable matching rod, and the connecting strips are fixed by the positioning columns during the downward movement; An elastic sheet is also fixedly arranged on the control strip, and the upper end of the elastic sheet is fixed on the connecting strip.

7. The device for phased array detection of pipe base fillet welds according to claim 6, characterized in that: The mobile detection mechanism is a detection frame, on which a detection probe is fixedly mounted, and a threaded carrier rod is also fixedly arranged on the detection frame; The threaded carrier rod passes through the chamber connecting hole and is threadedly inserted into the threaded through hole, and the thread directions of the threaded carrier rods on the two device bodies are opposite; A serial strip is fixedly arranged on the threaded carrier rod, the serial strip is located outside the retracted chamber, and a serial rod is fixedly arranged at the lower end of the serial strip, the serial rod is inserted into the bearing through hole, and a serial rack is fixedly arranged on the serial rod; A second driving rod is hinged on the serial frame, and the second driving rod is connected to a movable protection component.

8. The device for phased array detection of pipe socket fillet welds according to claim 7, characterized in that: The movable protection component is a perspective protection plate, an upper top protection plate is fixedly arranged on the upper end of the perspective protection plate, and protruding bearing blocks are symmetrically fixedly arranged on the upper top protection plate; A support matching rod is fixedly provided on the protruding bearing block, and the support matching rod is inserted into the support through hole; The lower end of the perspective protection plate is hinged to the second driving rod, and a protruding carrier plate is fixedly arranged at the lower end of the perspective protection plate, and a movable plug hole is opened on the protruding carrier plate.

9. The device for phased array detection of pipe socket fillet welds according to claim 8, characterized in that: The equipment positioning assembly comprises a mounting plate and a linkage block, wherein the mounting plate is mounted on the perspective protective plate, a positioning plate is fixedly arranged on the upper end of the mounting plate, and oblique matching plates are symmetrically fixedly arranged on the upper and lower ends of the positioning plate; A movable carrying rod is fixedly arranged at the lower end of the mounting support plate, the movable carrying rod is inserted into the movable insertion hole, and a connecting channel is opened at the lower end of the mounting support plate, and the connecting channel is connected to a linkage support block; The linkage bearing block is inserted in the installation channel, a matching movable hole is provided on the linkage bearing block, a load-bearing inner rod is inserted in the matching movable hole, and a second spring is sleeved on the load-bearing inner rod; A linkage bearing bar is fixedly arranged on the linkage bearing block, a linkage channel is opened on the linkage bearing bar, a channel plug rod is inserted in the linkage channel, a connecting block is fixedly arranged on the channel plug rod, a connecting plug rod is fixedly arranged on the connecting block, and the connecting plug rod is inserted in the connecting channel.

10. A phased array detection method for pipe base fillet welds, characterized in that: The detection method is applicable to the phased array detection device according to any one of claims 1 to 9, comprising the following steps: Step 1: Move the detection frame outward: Pull down the connecting strip to drive the detection frame to move outward, so that the detection probe surrounds the periphery of the weld; Step 2: Move the perspective protective plate away from the main body of the equipment, so that the staff can operate the main body of the equipment more conveniently. Step 3: Positioning of the bearing seat: As the connecting strip moves downward, it will also drive the mounting support plate to move toward each other, so that the oblique matching plate contacts the pipe to clamp the pipe, and then the bearing seat is positioned and fixed on the pipe; Step 4: Weld detection: Detect the weld using a detection probe.

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