Phased array detection device for fillet weld of bottom plate of storage tank

Abstract

The utility model discloses a phased array detection device for fillet welds of a bottom plate of a storage tank, which comprises a cabinet, a machine table arranged at the top end of the cabinet, a vertical plate arranged on one side of the top end of the machine table, a first top plate arranged on the inner wall of the upper end of the vertical plate, a screw rod transmission mechanism arranged at the top end of the first top plate, and a rotary driving piece arranged on the outer wall of one side of the screw rod transmission mechanism. A strip-shaped plate is installed on one side of the top end of the lead screw transmission mechanism, an ultrasonic phased array probe is arranged on one side of the top end of the strip-shaped plate through a support, a probe cover is arranged at the bottom end of the ultrasonic phased array probe, a base plate is arranged at the top end of the machine cabinet on one side of the vertical plate, a lower connecting plate is arranged above the base plate, and a shaft sleeve is arranged in the center of the top end of the lower connecting plate. According to the utility model, not only is the efficiency of detecting the fillet weld of the storage tank bottom plate improved when the detection device is used, but also the accuracy of detecting the defect of the fillet weld of the storage tank bottom plate when the detection device is used is ensured, and the purpose of carrying out ultrasonic phased array detection on the fillet weld of the storage tank bottom plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tank detection, in particular to a phased array detection device for the fillet weld of the bottom plate of a storage tank. Background Technique

[0002] As an important storage device in industries such as petroleum and chemical engineering, the safety of a storage tank is directly related to the safety and stability of production operation. The fillet weld of the bottom plate of the storage tank is a key connection part, and its welding quality directly affects the overall strength and sealing performance of the storage tank. The ultrasonic phased array detection technology shows significant advantages in the detection of welds with complex structures due to characteristics such as controllable sound beam angle, dynamic focusing, and three-dimensional imaging. However, dedicated phased array detection devices for the fillet weld of the bottom plate of storage tanks are not yet popular. Therefore, it is necessary to develop an efficient and accurate phased array detection device.

[0003] A storage tank bottom plate fillet weld defect detection device with the reference publication number of CN221199546U includes a traveling mechanism, a detection mechanism and a control terminal arranged on the traveling mechanism; the detection mechanism includes a laser side distance sensor and a weak magnetic sensor respectively connected to the control terminal; the traveling mechanism includes a guiding mechanism and a spacing maintaining mechanism. This device can ensure the detection accuracy by controlling the detection distance between the sensor and the fillet weld; use the weak magnetic technology to evaluate the equivalent of fillet weld defects, and the detection is convenient, fast and accurate: the developed detection device can be manually operated by an operator standing, and accurately control the distance between the sensor and the fillet weld: a laser distance measuring sensor is arranged in the device to accurately control the distance between the bottom plate and the side plate, so as to accurately control the distance between the detection sensor and the fillet weld, meeting the requirements of high-precision detection. According to the above, although this device can be well applied, it is usually not convenient to perform two-station sequential detection on storage tanks. After detecting one storage tank, it needs to be replaced before the next storage tank can be detected, which leads to a relatively high time cost during the storage tank replacement process and affects the detection efficiency of the storage tank, and further improvement is needed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a phased array detection device for the fillet weld of the bottom plate of a storage tank, so as to solve the problem that although the device in the above background technology can be well applied, it is usually not convenient to perform two-station sequential detection on storage tanks. After detecting one storage tank, it needs to be replaced before the next storage tank can be detected, which leads to a relatively high time cost during the storage tank replacement process and affects the detection efficiency of the storage tank.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A phased array detection device for the corner welds of a storage tank bottom plate, including a cabinet. A machine table is provided at the top of the cabinet. A vertical plate is provided on one side of the top of the machine table. A first top plate is provided on the inner wall of the upper end of the vertical plate. A screw drive mechanism is provided at the top of the first top plate. A rotary drive member is provided on the outer wall of one side of the screw drive mechanism. A strip-shaped plate is installed on one side of the top of the screw drive mechanism. An ultrasonic phased array probe is provided through a bracket on one side of the top of the strip-shaped plate. A probe cover is provided at the bottom of the ultrasonic phased array probe. A base plate is provided on the top of the cabinet on one side of the vertical plate. A lower connecting plate is provided above the base plate. A shaft sleeve is provided at the center position of the top of the lower connecting plate. A rotating shaft is movably connected inside the shaft sleeve. The bottom end of the rotating shaft penetrates through the lower connecting plate and is provided with a driven gear. The top end of the rotating shaft extends to the outside of the shaft sleeve and is provided with a detection table. A motor is installed on the outer wall of one side of the lower connecting plate. A driving gear is installed at the bottom of the motor. The driving gear meshes with the driven gear. A control panel is installed on one side of the surface of the cabinet. The output ends of the single-chip microcomputer inside the control panel are electrically connected to the input ends of the motor, the ultrasonic phased array probe, and the rotary drive member respectively.

[0006] Preferably, a first guiding rod is installed through a bracket at the top of the first top plate on one side of the screw drive mechanism. The first guiding rod is movably connected to the strip-shaped plate. Through the setting of the first guiding rod, the movement amplitude of the strip-shaped plate can be monitored.

[0007] Preferably, a second top plate is provided on the inner wall of the vertical plate on one side of the first top plate. A second guiding rod is provided through a bracket at the top of the second top plate. The second guiding rod is movably connected to the strip-shaped plate. Through the setting of the second guiding rod, the movement amplitude of the strip-shaped plate can be monitored.

[0008] Preferably, columns are provided at the edge positions of the bottom end of the lower connecting plate. The bottom ends of the columns are connected to the top of the base plate. Through the setting of the columns, the lower connecting plate can be supported and placed.

[0009] Preferably, annular limiting frames are provided on both sides of the top of the detection table. The two annular limiting frames are symmetrical about the center line of the detection table. Through the setting of the annular limiting frames, the storage tank can be limited and placed.

[0010] Preferably, feet are installed at the corner positions of the bottom end of the cabinet. Through the setting of the feet, the cabinet can be supported.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The phased array detection device for the fillet weld of the storage tank bottom plate not only improves the detection efficiency of the fillet weld of the storage tank bottom plate when the detection device is used, but also ensures the detection accuracy of the defects at the fillet weld of the storage tank bottom plate when the detection device is used, and moreover achieves the purpose of ultrasonic phased array detection of the fillet weld of the storage tank bottom plate;

[0012] (1) The driving gear is rotated by the motor, so that the driving gear drives the driven gear to rotate slowly, and the driven gear drives the detection table to rotate through the rotating shaft, so as to sequentially rotate and transfer the storage tanks placed inside the annular limiting frame to the lower part of the ultrasonic phased array probe, and thus the defects of the fillet weld of the storage tank bottom plate can be detected at two workstations in sequence, thereby improving the detection efficiency of the fillet weld of the storage tank bottom plate when the detection device is used;

[0013] (2) The screw rod transmission mechanism is driven to operate by the rotary driving member, so that the screw rod transmission mechanism drives the strip plate to translate, so that the strip plate slides on the outer walls of the first guide rod and the second guide rod, and thus the ultrasonic phased array probe can be driven by the strip plate to move horizontally stably. Then, by driving the storage tank in the right annular limiting frame to rotate slightly by the detection table, the detection range of the ultrasonic phased array probe for the storage tank bottom plate can be expanded, thereby ensuring the detection accuracy of the defects at the fillet weld of the storage tank bottom plate when the detection device is used;

[0014] (3) The ultrasonic phased array probe adopts a multi-element transducer array, and each element can independently excite and receive acoustic signals. By adjusting the excitation time delay of each element, the focusing and deflection of the acoustic beam are realized. Signal transmission and reception modules are respectively arranged at the bottom of the ultrasonic phased array probe, which are responsible for sending excitation signals to the ultrasonic phased array probe and receiving the reflected signals from the ultrasonic phased array probe, and performing signal amplification, filtering and demodulation processing. Subsequently, the control panel performs digital processing on the received signals to generate three-dimensional imaging images, intuitively displaying the position, size and shape of the weld defects, thereby achieving the purpose of ultrasonic phased array detection of the fillet weld of the storage tank bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a top-view structural schematic diagram of the lower connecting plate of the present utility model;

[0017] Figure 3 is the present utility model Figure 1 the enlarged structural schematic diagram at A in;

[0018] Figure 4 is the present utility model Figure 1 the enlarged structural schematic diagram at B in.

[0019] In the figure: 1, cabinet; 2, feet; 3, machine table; 4, control panel; 5, substrate; 6, column; 7, inspection table; 8, annular limit frame; 9, vertical plate; 10, first top plate; 11, second top plate; 12, screw drive mechanism; 13, lower connecting plate; 14, motor; 15, driving gear; 16, driven gear; 17, bushing; 18, rotating shaft; 19, strip plate; 20, ultrasonic phased array probe; 21, probe cover; 22, second guide rod; 23, rotary drive member; 24, first guide rod. Specific embodiments

[0020] 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. Based on the embodiments in 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.

[0021] Please refer to Figures 1-4 , an embodiment provided by the present invention: A phased array detection device for the fillet weld of the bottom plate of a storage tank, including a cabinet 1, and feet 2 are installed at the corner positions at the bottom end of the cabinet 1;

[0022] During use, through the setting of the feet 2, the cabinet 1 can be supported.

[0023] A machine table 3 is provided at the top end of the cabinet 1, a vertical plate 9 is provided on one side of the top end of the machine table 3, a first top plate 10 is provided on the inner wall of the upper end of the vertical plate 9, a second top plate 11 is provided on the inner wall of the vertical plate 9 on one side of the first top plate 10, a second guide rod 22 is provided at the top end of the second top plate 11 through a bracket, and the second guide rod 22 is movably connected to the strip plate 19;

[0024] During use, through the setting of the second guide rod 22, the movement amplitude of the strip plate 19 can be monitored.

[0025] A screw drive mechanism 12 is provided at the top end of the first top plate 10, a first guide rod 24 is installed at the top end of the first top plate 10 on one side of the screw drive mechanism 12 through a bracket, and the first guide rod 24 is movably connected to the strip plate 19;

[0026] During use, through the setting of the first guide rod 24, the movement amplitude of the strip plate 19 can be monitored.

[0027] On the outer wall on one side of the lead screw drive mechanism 12, there is a rotary drive member 23. On one side at the top of the lead screw drive mechanism 12, there is a strip-shaped plate 19. On one side at the top of the strip-shaped plate 19, there is an ultrasonic phased array probe 20 provided through a bracket. At the bottom end of the ultrasonic phased array probe 20, there is a probe cover 21. On the top of the cabinet 1 on one side of the vertical plate 9, there is a base plate 5. Above the base plate 5, there is a lower connecting plate 13. At the edge positions at the bottom end of the lower connecting plate 13, there are all upright columns 6. The bottom ends of the upright columns 6 are connected to the top end of the base plate 5;

[0028] During use, through the arrangement of the upright columns 6, the lower connecting plate 13 can be supported and placed;

[0029] At the central position at the top end of the lower connecting plate 13, there is a bushing 17. Inside the bushing 17, there is a rotating shaft 18 movably connected. The bottom end of the rotating shaft 18 penetrates through the lower connecting plate 13 and is provided with a driven gear 16. The top end of the rotating shaft 18 extends to the outside of the bushing 17 and is provided with a detection table 7. On both sides at the top end of the detection table 7, there are annular limiting frames 8. The two annular limiting frames 8 are symmetric about the center line of the detection table 7;

[0030] During use, through the arrangement of the annular limiting frames 8, the storage tank can be limited and placed;

[0031] On the outer wall on one side of the lower connecting plate 13, there is a motor 14 installed. At the bottom end of the motor 14, there is a driving gear 15 installed. The driving gear 15 meshes with the driven gear 16. On one side of the surface of the cabinet 1, there is a control panel 4 installed. The output ends of the single-chip microcomputer inside the control panel 4 are respectively electrically connected to the input ends of the motor 14, the ultrasonic phased array probe 20, and the rotary drive member 23.

[0032] When the embodiment of the present application is in use, first, the storage tank is inverted on the top of the inspection table 7 inside the annular limiting frame 8. The motor 14 is driven to rotate the driving gear 15. Since the driving gear 15 meshes with the driven gear 16, and the diameter of the driving gear 15 is smaller than that of the driven gear 16, the driving gear 15 drives the driven gear 16 to rotate slowly, and the driven gear 16 drives the inspection table 7 to rotate through the rotating shaft 18, so as to sequentially rotate and transfer the storage tank placed inside the annular limiting frame 8 to the lower part of the ultrasonic phased array probe 20. Thus, it is easy to detect the defects of the fillet welds of the bottom plate of the storage tank in a double-station manner. Then, the ultrasonic phased array probe 20 uses a multi-element transducer array. Each element can independently excite and receive acoustic signals. By adjusting the excitation time delay of each element, the focusing and deflection of the acoustic beam are realized. Signal transmission and reception modules are respectively arranged at the bottom of the ultrasonic phased array probe 20, which are responsible for sending excitation signals to the ultrasonic phased array probe 20 and receiving the reflected signals from the ultrasonic phased array probe 20, and performing signal amplification, filtering and detection processing. Subsequently, the control panel 4 performs digital processing on the received signals to generate three-dimensional imaging images, visually displaying the position, size and shape of the weld defects, so as to detect the defects of the fillet welds of the bottom plate of the storage tank by using the ultrasonic phased array technology. Finally, the rotating drive member 23 is driven to operate the screw drive mechanism 12, so that the screw drive mechanism 12 drives the strip plate 19 to translate, so that the strip plate 19 slides on the outer walls of the first guide rod 24 and the second guide rod 22. Then, the strip plate 19 drives the ultrasonic phased array probe 20 to move horizontally smoothly. By driving the storage tank in the right annular limiting frame 8 to rotate slightly through the inspection table 7, the detection range of the ultrasonic phased array probe 20 for the bottom plate of the storage tank can be expanded, thus completing the use of the detection device.

Claims

1. A phased array detection device for tank bottom plate fillet welds, characterized in that: The invention comprises a cabinet (1), wherein a machine platform (3) is provided at the top of the cabinet (1), a vertical plate (9) is provided on one side of the top of the machine platform (3), a first top plate (10) is provided on the inner wall of the upper end of the vertical plate (9), a screw transmission mechanism (12) is provided at the top of the first top plate (10), a rotating driving member (23) is provided on the outer wall of one side of the screw transmission mechanism (12), a strip plate (19) is installed on one side of the top of the screw transmission mechanism (12), an ultrasonic phased array probe (20) is provided on one side of the top of the strip plate (19) through a bracket, a probe cover (21) is provided at the bottom end of the ultrasonic phased array probe (20), a base plate (5) is provided at the top of the cabinet (1) on one side of the vertical plate (9), a lower connecting plate (13) is provided above the base plate (5), and the lower connecting plate A shaft sleeve (17) is provided at the center position of the top of the cabinet (13), and a rotating shaft (18) is movably connected inside the shaft sleeve (17). The bottom end of the rotating shaft (18) passes through the lower connecting plate (13) and is provided with a driven gear (16). The top end of the rotating shaft (18) extends to the outside of the shaft sleeve (17) and is provided with a detection platform (7). A motor (14) is installed on the outer wall of one side of the lower connecting plate (13), and a driving gear (15) is installed at the bottom end of the motor (14). The driving gear (15) and the driven gear (16) are meshed with each other. A control panel (4) is installed on one side of the surface of the cabinet (1), and the output end of the single chip microcomputer inside the control panel (4) is electrically connected to the input end of the motor (14), the ultrasonic phased array probe (20) and the rotating drive member (23) respectively.

2. The phased array detection device for tank bottom plate fillet weld according to claim 1, characterized in that: A first guide rod (24) is installed at the top end of the first top plate (10) on one side of the screw transmission mechanism (12) via a bracket, and the first guide rod (24) is movably connected to the strip plate (19).

3. The phased array detection device for tank bottom plate fillet weld according to claim 1, characterized in that: A second top plate (11) is provided on the inner wall of the vertical plate (9) on one side of the first top plate (10), and a second guide rod (22) is provided at the top end of the second top plate (11) through a bracket, and the second guide rod (22) is movably connected to the strip plate (19).

4. The phased array detection device for tank bottom plate fillet weld according to claim 1, characterized in that: A column (6) is provided at the edge of the bottom end of the lower connecting plate (13), and the bottom end of the column (6) is connected to the top end of the base plate (5).

5. The phased array detection device for tank bottom plate fillet weld according to claim 1, characterized in that: Annular limiting frames (8) are provided on both sides of the top of the detection platform (7), and the two annular limiting frames (8) are symmetrical about the center line of the detection platform (7).

6. The phased array detection device for tank bottom plate fillet weld according to claim 1, characterized in that: Support legs (2) are installed at the corner positions of the bottom end of the cabinet (1).

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