Ultrasonic guided wave storage tank body monitoring method

Abstract

The invention discloses an ultrasonic guided wave storage tank body monitoring method, and relates to the technical field of storage tank body monitoring, and the method comprises the following steps: S1, carrying out rust removal and cleaning on the outer surface of a storage tank body; s2, a monitoring device is installed on the outer surface of the storage tank body, and outer surface defect monitoring is conducted; s3, analyzing and recording a monitoring result; wherein the monitoring device comprises a fixing ring, the lower side of the fixing ring is fixedly connected with a fixing cover, and the upper side of the fixing ring is fixedly connected with a plurality of fixing blocks. According to the ultrasonic guided wave storage tank body monitoring method, by arranging a fixing ring, a fixing cover, a clamping block, a plurality of sliding blocks, an inclined plate, a lifting ring and a monitoring head, a plurality of ultrasonic probes can be conveniently close to the storage tank body, a plurality of positions of the outer surface of the tank body are monitored, and by means of a stabilizing plate, a contact ring, a push ring and a spring, when the ultrasonic probes make contact with the tank body, the ultrasonic probes can be conveniently fixed. The stability of the ultrasonic probe is improved through the multiple stabilizing plates, and the monitoring precision is prevented from being affected by external vibration.

Description

Technical Field

[0001] The present invention relates to the technical field of storage tank body monitoring, and in particular to a storage tank body monitoring method using ultrasonic guided waves. Background Art

[0002] Ultrasonic guided waves are a highly effective method for monitoring the structural health of storage tanks, particularly suitable for defect detection over large areas and long distances. Their core principle is to leverage the multimodal propagation characteristics of low-frequency ultrasound within the tank wall, identifying defects such as corrosion, cracks, and thinning through signal changes such as reflection and scattering.

[0003] After searching, the Chinese patent with application number "CN202510376520.0" is specifically an ultrasonic guided wave monitoring device for tank corrosion, including a protective cover, the inner wall of the protective cover is fixedly connected to a covering block, the inner wall of the protective cover is fixedly connected to a monitoring block, and a support mechanism is arranged inside the protective cover. It also includes: a fixing mechanism, the fixing mechanism is arranged on the inner wall of the protective cover, the fixing mechanism includes a support sleeve 1, the outer wall of the support sleeve 1 is slidably connected to the inner wall of the protective cover, the bottom of the support sleeve 1 is fixedly connected to a support plate, the outer wall of the support plate is provided with a sliding groove, and the sliding groove wall is slidably connected to a support sleeve 2.

[0004] In the above patent, the monitoring device is installed on the outside of the tank body by means of a suction cup, so that the monitoring head fits against the tank body to monitor defects on the tank body's surface. A fan and a pump body are installed on the outside of the storage tank body. The fan and the pump will generate vibrations when they are running. These vibrations are limited only by the suction cup, making the installation of the monitoring head unstable and the ultrasonic detection results inaccurate. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides a storage tank body monitoring method using ultrasonic guided waves, which solves the problem that the monitoring accuracy of the detection head is low due to the vibration of the external tank body.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A method for monitoring a storage tank body using ultrasonic guided waves comprises the following steps: S1. Derust and clean the outer surface of the storage tank; S2. Install monitoring devices on the outer surface of the storage tank to monitor for defects on the outer surface; S3. Analyze and record the monitoring results; In which, the monitoring device includes a fixing ring, a fixing cover is fixedly connected to the lower side of the fixing ring, a plurality of fixing blocks are fixedly connected to the upper side of the fixing ring, a screw is provided on the outer side of the fixing block, a clamping block is provided at one end of the screw, a telescopic rod is fixedly connected between the clamping block and the fixing block, a rotating cap is fixedly connected to the other end of the screw, a monitoring unit is provided on the upper side of the fixing ring, the monitoring unit includes a plurality of slide grooves, and the plurality of slide grooves are all opened on the upper side of the fixing ring, a slider is slidably connected to the inner side of the slide groove, and a stabilizing component is provided on the upper side of the slider, and the stabilizing component makes the installation of the monitoring component more stable.

[0007] Preferably, the lower sides of the plurality of sliders are fixedly connected to a bottom block, the outer sides of the plurality of bottom blocks are rotatably connected to an inclined plate, the outer side of the lower end of the inclined plate is rotatably connected to a rotating block, the lower side of the rotating block is fixedly connected to a lifting ring, and an electric push rod is fixedly connected between the lower side of the lifting ring and the inner wall of the fixed cover.

[0008] Preferably, the stabilizing assembly includes a top frame, which is fixedly connected to the upper side of the slider, and the inner side of the top frame is fixedly connected to a connecting rod, and the connecting rod is fixedly connected to an ultrasonic probe on a side close to the middle of the fixing ring, and the outer side of the connecting rod is fixedly connected to multiple branch blocks, and the outer sides of multiple branch blocks are rotatably connected to stabilizing plates, and the sides of multiple stabilizing plates close to the ultrasonic probe are fixedly connected to connecting block 1, the outer side of the connecting block 1 is rotatably connected to a support plate, and the outer side of the support plate is rotatably connected to connecting block 2, the outer side of the connecting block 2 is fixedly connected to a push ring, and one side of the push ring is fixedly connected to a fixing rod, and the outer end of the fixing rod is fixedly connected to a contact ring.

[0009] Preferably, a spring is fixedly connected between the push ring and the connecting rod, a shielding cloth is fixedly connected between the two stabilizing plates, and the push ring is slidably connected to the ultrasound probe.

[0010] Preferably, the side of the plurality of stabilizing plates away from the ultrasonic probe is fixedly connected to an airbag, the side of the push ring away from the middle of the fixed ring is fixedly connected to a moving rod, an air cabin is provided on the inner side of the connecting rod, a piston disk is provided on the inner side of the air cabin, the piston disk is fixedly connected to the moving rod, and a branch pipe is fixedly connected between the air cabin and the airbag.

[0011] Preferably, the end of the connecting rod away from the middle of the fixing ring is fixedly connected to a connecting disk 1, the outer side of the connecting disk 1 is fixedly connected to a stabilizing rod 1, the outer side of the stabilizing rod 1 is provided with an air cylinder, the outer side of the slider is fixedly connected to an L-shaped plate, the upper side of the L-shaped plate is fixedly connected to a connecting disk 2, and the side of the connecting disk 2 close to the air cylinder is fixedly connected to a stabilizing rod 2.

[0012] Preferably, the left and right sides of the air cylinder are fixedly connected with mounting rings, the front and rear sides of the mounting ring are fixedly connected with side plates, a movable groove is provided on the upper side of the side plate, a reciprocating block is slidably connected to the inner side of the movable groove, the upper side of the reciprocating block is rotatably connected to two control plates, the outer sides of the connecting disk one and the connecting disk two are fixedly connected with connecting block three, and the connecting block three is rotatably connected to the control plate.

[0013] The present invention provides a method for monitoring storage tanks using ultrasonic guided waves. Compared with existing technologies, it has the following advantages: (1) The ultrasonic guided wave storage tank body monitoring method is provided with a fixing ring, a fixing cover, a clamping block, a plurality of sliders, an inclined plate, a lifting ring, and a monitoring head, so that a plurality of ultrasonic probes can be brought close to the storage tank body and monitor a plurality of positions on the outer surface of the tank body. The plurality of stabilizing plates can increase the stability of the ultrasonic probe when the ultrasonic probe contacts the tank body, thereby preventing external vibration from affecting the monitoring accuracy.

[0014] (2) The tank body monitoring method of the ultrasonic guided wave is provided with a stabilizing plate, a contact ring and a shielding cloth, so that the shielding cloth can shield the ultrasonic probe and prevent external dust from affecting the monitoring of the probe.

[0015] (3) The tank body monitoring method of the ultrasonic guided wave is provided with an air bag, a branch pipe, a push ring, a moving rod and a piston plate, so as to facilitate the expansion of the air bag on the stabilizing plate and protect the ultrasonic probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall three-dimensional structural diagram of the present invention; Figure 2 It is a sectional three-dimensional structural diagram of the present invention; Figure 3 A three-dimensional structural diagram of the stabilizing component of the present invention; Figure 4 A three-dimensional structural diagram of the stabilizing component of the present invention from another perspective; Figure 5 A partial three-dimensional structural diagram of a stabilizing component in the present invention; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 A partially cutaway perspective structural diagram of a stabilizing assembly in the present invention; Figure 8 It is a three-dimensional structural diagram of the gas cylinder of the present invention; Figure 9 It is a cross-sectional three-dimensional structural diagram of the gas cylinder of the present invention.

[0017] In the figure: 1. fixing ring; 2. fixing cover; 3. fixing block; 4. screw; 5. telescopic rod; 6. clamping block; 7. rotating cap; 8. monitoring unit; 81. slide groove; 82. slider; 83. bottom block; 84. inclined plate; 85. rotating block; 86. lifting ring; 87. electric push rod; 88. stabilizing assembly; 881. top frame; 882. connecting rod; 883. ultrasonic probe; 884. branch block; 885. stabilizing plate; 886. shielding cloth; 887. airbag; 888. branch pipe; 889. connecting block 1; 8810. support plate ;8811, connecting block two; 8812, push ring; 8813, fixed rod; 8814, contact ring; 8815, moving rod; 8816, spring; 8817, air chamber; 8818, piston disc; 8819, connecting disc one; 8820, stabilizing rod one; 8821, air cylinder; 8822, stabilizing rod two; 8823, connecting disc two; 8824, L-shaped plate; 8825, mounting ring; 8826, side plate; 8827, moving groove; 8828, reciprocating block; 8829, control board; 8830, connecting block three. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0019] The present invention provides the following technical solutions: Example 1

[0020] See also Figure 1-Figure 7 A method for monitoring a storage tank body using ultrasonic guided waves comprises the following steps: S1. Derust and clean the outer surface of the storage tank body. After derusting and cleaning, it is convenient to monitor the tank surface with ultrasonic guided waves; S2. Install monitoring devices on the outer surface of the storage tank to monitor for defects on the outer surface; S3. Analyze and record the monitoring results; The monitoring device includes a fixed ring 1, a fixed cover 2 is fixedly connected to the lower side of the fixed ring 1, a plurality of fixed blocks 3 are fixedly connected to the upper side of the fixed ring 1, a screw 4 is provided on the outer side of the fixed block 3, a clamping block 6 is provided at one end of the screw 4, a telescopic rod 5 is fixedly connected between the clamping block 6 and the fixed block 3, and a rotating cap 7 is fixedly connected to the other end of the screw 4. A monitoring unit 8 is provided on the upper side of the fixed ring 1, and the monitoring unit 8 includes a plurality of slide grooves 81, and the plurality of slide grooves 81 are all opened on the upper side of the fixed ring 1. A slider 82 is slidably connected to the inner side of the slide groove 81, and a stabilizing component 88 is provided on the upper side of the slider 82. The stabilizing component 88 makes the installation of the monitoring component more stable, and the lower sides of the plurality of sliders 82 are fixedly connected to the bottom block 83, and the outer sides of the plurality of bottom blocks 83 are rotatably connected to the inclined plate 84, and the outer side of the lower end of the inclined plate 84 is rotatably connected to the rotating block 85, and the lower side of the rotating block 85 is fixedly connected to the lifting ring 86. An electric push rod 87 is fixedly connected between the lower side of the lowering ring 86 and the inner wall of the fixed cover 2. When monitoring the outer surface of the storage tank body, the fixing ring 1 and the fixed cover 2 are first sleeved on the outer surface of the storage tank body, and then the rotating cap 7 is rotated. The rotating cap 7 drives the screw 4 to rotate, and the screw 4 drives the clamping block 6 to approach the tank body, which is convenient for multiple clamping blocks 6 to clamp the tank body and install the fixing ring 1 and the fixed cover 2. Then the electric push rod 87 is controlled to drive the lifting ring 86 to descend, and the lifting ring 86 drives the inclined plate 84 to rotate. Since the multiple inclined plates 84 are arranged in a circular array, the inclined plate 84 drives the slider 82 to move, and the multiple sliders 82 approach each other. The multiple sliders 82 drive the top frame 881 to move, and the top frame 881 drives the connecting rod 882 to move. The connecting rod 882 drives the ultrasonic probe 883 to move, so that the multiple ultrasonic probes 883 are close to the tank body, which is convenient for monitoring multiple positions of the storage tank body.

[0021] The stabilizing assembly 88 includes a top frame 881, which is fixedly connected to the upper side of the slider 82. The inner side of the top frame 881 is fixedly connected to a connecting rod 882. The side of the connecting rod 882 near the middle of the fixing ring 1 is fixedly connected to an ultrasonic probe 883. The outer side of the connecting rod 882 is fixedly connected to multiple branch blocks 884. The outer sides of the multiple branch blocks 884 are rotatably connected to stabilizing plates 885. The sides of the multiple stabilizing plates 885 near the ultrasonic probe 883 are fixedly connected to a connecting block 1 889. The outer side of the connecting block 1 889 is rotatably connected to a support plate 8810. The outer side of the support plate 8810 is rotatably connected to a connecting block 2 8811. The outer side of the connecting block 2 8811 is fixedly connected to a push ring 8812. One side of the push ring 8812 is fixedly connected to a fixing rod 8813. The outer end of the fixing rod 8813 is fixedly connected to a contact ring 8814. A spring 8816 is fixedly connected between the push ring 8812 and the connecting rod 882. A shielding cloth 886 is fixedly connected between 885, and the push ring 8812 is slidably connected to the ultrasonic probe 883. When the ultrasonic probe 883 approaches the tank body, the connecting rod 882 drives the contact ring 8814 to approach the tank body, and the contact ring 8814 contacts the tank body, and then continues to control the movement of the contact ring 8814, and the contact ring 8814 drives the fixed rod 8813 to move, and the fixed rod 8813 drives the push ring 8812 to move, and the push ring 8812 drives multiple support plates 8810 to rotate, and the support plate 8810 drives the stabilizing plate 885 to rotate, and the multiple stabilizing plates 885 are unfolded, and the multiple stabilizing plates 885 are in contact with the tank body, which is convenient for dispersing the vibration force when the tank body vibrates, increasing the stability of the installation of the ultrasonic probe 883, and reducing the impact of vibration on the monitoring of the ultrasonic probe 883. When the stabilizing plate 885 is unfolded, the shielding cloth 886 is unfolded, which is convenient for the shielding cloth 886 to block external dust and prevent external dust from affecting the monitoring accuracy of the ultrasonic probe 883.

[0022] The side of multiple stabilizing plates 885 away from the ultrasonic probe 883 is fixedly connected to an airbag 887, and the side of the push ring 8812 away from the middle of the fixed ring 1 is fixedly connected to a moving rod 8815. An air chamber 8817 is provided on the inner side of the connecting rod 882, and a piston disk 8818 is provided on the inner side of the air chamber 8817. The piston disk 8818 is fixedly connected to the moving rod 8815, and a branch pipe 888 is fixedly connected between the air chamber 8817 and the airbag 887. When the ultrasonic probe 883 approaches the tank body, the push ring 8812 drives the moving rod 8815 to move, and the moving rod 8815 drives the piston disk 8818 to move, so that the piston disk 8818 pushes the gas in the air chamber 8817 out, and through multiple branch pipes 888, the multiple airbags 887 are expanded, making it convenient for the airbags 887 to protect the ultrasonic probe 883. Example 2

[0023] In the contact of embodiment 1, Figure 8 、 Figure 9As shown, the monitoring device includes a fixed ring 1, a fixed cover 2 is fixedly connected to the lower side of the fixed ring 1, a plurality of fixed blocks 3 are fixedly connected to the upper side of the fixed ring 1, a screw 4 is provided on the outer side of the fixed block 3, a clamping block 6 is provided at one end of the screw 4, a telescopic rod 5 is fixedly connected between the clamping block 6 and the fixed block 3, a rotating cap 7 is fixedly connected to the other end of the screw 4, a monitoring unit 8 is provided on the upper side of the fixed ring 1, and the monitoring unit 8 includes a plurality of slide grooves 81, and the plurality of slide grooves 81 are all opened on the upper side of the fixed ring 1 The inner side of the slide groove 81 is slidably connected with a slider 82, and a stabilizing component 88 is provided on the upper side of the slider 82. The stabilizing component 88 makes the installation of the monitoring component more stable. The lower sides of multiple sliders 82 are fixedly connected with bottom blocks 83, and the outer sides of multiple bottom blocks 83 are rotatably connected with inclined plates 84. The outer side of the lower end of the inclined plate 84 is rotatably connected with a rotating block 85. The lower side of the rotating block 85 is fixedly connected with a lifting ring 86, and an electric push rod 87 is fixedly connected between the lower side of the lifting ring 86 and the inner wall of the fixed cover 2.

[0024] The end of the connecting rod 882 away from the middle of the fixed ring 1 is fixedly connected to a connecting disk 1 8819, the outer side of the connecting disk 1 8819 is fixedly connected to a stabilizing rod 1 8820, and the outer side of the stabilizing rod 1 8820 is provided with an air cylinder 8821. The outer side of the slider 82 is fixedly connected to an L-shaped plate 8824, the upper side of the L-shaped plate 8824 is fixedly connected to a connecting disk 2 8823, and the side of the connecting disk 2 8823 close to the air cylinder 8821 is fixedly connected to a stabilizing rod 2 8822. The left and right sides of the air cylinder 8821 are fixedly connected to mounting rings 8825, and the front and rear sides of the mounting ring 8825 are fixedly connected to side plates 8826. A movable groove 8827 is provided on the upper side of the side plate 8826, and a reciprocating block 8828 is slidably connected to the inner side of the movable groove 8827. The upper side of the reciprocating block 8828 is rotatably connected to two control plates 8829. The connecting disk 1 8819 and the connecting disk 2 8823 are fixedly connected. The outer side of 823 is fixedly connected with a connecting block three 8830, and the connecting block three 8830 is rotatably connected to the control board 8829. During monitoring, when the tank body vibrates, the tank body drives the connecting rod 882 to move slightly, the connecting rod 882 drives the connecting plate 1 8819 to move, the connecting plate 1 8819 drives the stabilizing rod 1 8820 to move, and the stabilizing rod 1 8820 drives the gas cylinder 8821 to move. The inside of the gas cylinder 8821 is filled with gas, which is convenient for reducing the movement amplitude of the connecting plate 1 8819 and reducing the impact of vibration on the ultrasonic probe 883. When the gas cylinder 8821 moves, the gas cylinder 8821 drives the mounting ring 8825 to move, the mounting ring 8825 drives the side plate 8826 to move, the connecting plate 1 8819 drives the control board 8829 to rotate, and the control board 8829 drives the reciprocating block 8828 to move back and forth, thereby increasing the stability of the movement of the connecting plate 1 8819.

[0025] Working principle: When in use, the staff first sets the fixing ring 1 and the fixing cover 2 on the outside of the tank body, and then rotates the rotating cap 7 to drive the screw 4 to rotate, controls the multiple clamping blocks 6 to contact the tank body, and installs the fixing ring 1 and the fixing cover 2 on the outside of the tank body, and then controls the electric push rod 87 to drive the lifting ring 86 to descend. Under the action of the inclined plate 84, the inclined plate 84 is controlled to drive the slider 82 to move, and the slider 82 drives the ultrasonic probe 883 on the connecting rod 882 to move. Multiple ultrasonic probes 883 are close to the outside of the tank body, which facilitates multiple ultrasonic probes 883 to monitor multiple positions of the tank body. When the ultrasonic probe 883 moves, the contact ring 8814 contacts the tank body, and the contact ring 8814 is continued to be controlled to move. The contact ring 8814 drives the push ring 8812 on the fixed rod 8813 to move. Under the action of plate 8810, multiple stabilizing plates 885 are controlled to expand and contact the tank body, so that the multiple stabilizing plates 885 increase the stability of the installation of the ultrasonic probe 883. At the same time, the shielding cloth 886 on the stabilizing plate 885 is used to block external dust to prevent external dust from affecting the accuracy of the ultrasonic probe 883. At the same time, the push ring 8812 drives the piston disk 8818 on the moving rod 8815 to move, and in the air chamber 8817 and the branch pipe 888, multiple air bags 887 are expanded to facilitate the protection of the ultrasonic probe 883. When the tank body vibrates, the connecting rod 882 drives the connecting plate 1 8819 to move. Under the action of the air cylinder 8821, the stabilizing rod 2 8822, the side plate 8826, the reciprocating block 8828 and the control plate 8829, the vibration impact on the monitoring of the ultrasonic probe 883 is reduced.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for monitoring a storage tank body using ultrasonic guided waves, characterized in that: The following steps are involved: S1. Derust and clean the outer surface of the storage tank; S2. Install monitoring devices on the outer surface of the storage tank to monitor for defects on the outer surface; S3. Analyze and record the monitoring results; The monitoring device comprises a fixed ring (1), a fixed cover (2) is fixedly connected to the lower side of the fixed ring (1), a plurality of fixed blocks (3) are fixedly connected to the upper side of the fixed ring (1), a screw (4) is provided on the outer side of the fixed block (3), a clamping block (6) is provided at one end of the screw (4), a telescopic rod (5) is fixedly connected between the clamping block (6) and the fixed block (3), a rotating cap (7) is fixedly connected to the other end of the screw (4), a monitoring unit (8) is provided on the upper side of the fixed ring (1), the monitoring unit (8) comprises a plurality of slide grooves (81), the plurality of slide grooves (81) are all opened on the upper side of the fixed ring (1), a slider (82) is slidably connected to the inner side of the slide groove (81), a stabilizing component (88) is provided on the upper side of the slider (82), and the stabilizing component (88) makes the installation of the monitoring component more stable.

2. The method for monitoring a storage tank body using ultrasonic guided waves according to claim 1, characterized in that: The lower sides of the plurality of sliders (82) are fixedly connected to a bottom block (83), the outer sides of the plurality of bottom blocks (83) are rotatably connected to an inclined plate (84), the outer side of the lower end of the inclined plate (84) is rotatably connected to a rotating block (85), the lower side of the rotating block (85) is fixedly connected to a lifting ring (86), and an electric push rod (87) is fixedly connected between the lower side of the lifting ring (86) and the inner wall of the fixed cover (2).

3. The method for monitoring a storage tank body using ultrasonic guided waves according to claim 1, characterized in that: The stabilizing assembly (88) includes a top frame (881), the top frame (881) is fixedly connected to the upper side of the slider (82), the inner side of the top frame (881) is fixedly connected to a connecting rod (882), the side of the connecting rod (882) close to the middle of the fixing ring (1) is fixedly connected to an ultrasound probe (883), the outer side of the connecting rod (882) is fixedly connected to a plurality of branch blocks (884), the outer sides of the plurality of branch blocks (884) are all rotatably connected to a stabilizing plate (885), and the plurality of stabilizing plates (885) are fixedly connected to the connecting rod (882). 5) A connecting block 1 (889) is fixedly connected to one side close to the ultrasonic probe (883), the outer side of the connecting block 1 (889) is rotatably connected to a support plate (8810), the outer side of the support plate (8810) is rotatably connected to a connecting block 2 (8811), the outer side of the connecting block 2 (8811) is fixedly connected to a push ring (8812), one side of the push ring (8812) is fixedly connected to a fixing rod (8813), and the outer end of the fixing rod (8813) is fixedly connected to a contact ring (8814).

4. The method for monitoring a storage tank body using ultrasonic guided waves according to claim 3, characterized in that: A spring (8816) is fixedly connected between the push ring (8812) and the connecting rod (882), a shielding cloth (886) is fixedly connected between the two stabilizing plates (885), and the push ring (8812) is slidably connected to the ultrasonic probe (883).

5. The method for monitoring a storage tank body using ultrasonic guided waves according to claim 3, characterized in that: The side of the plurality of stabilizing plates (885) away from the ultrasonic probe (883) is fixedly connected to an airbag (887), the side of the push ring (8812) away from the middle of the fixed ring (1) is fixedly connected to a moving rod (8815), an air chamber (8817) is provided on the inner side of the connecting rod (882), a piston disc (8818) is provided on the inner side of the air chamber (8817), the piston disc (8818) is fixedly connected to the moving rod (8815), and a branch pipe (888) is fixedly connected between the air chamber (8817) and the airbag (887).

6. The method for monitoring a storage tank body using ultrasonic guided waves according to claim 3, characterized in that: One end of the connecting rod (882) away from the middle of the fixing ring (1) is fixedly connected to a connecting disk 1 (8819), the outer side of the connecting disk 1 (8819) is fixedly connected to a stabilizing rod 1 (8820), the outer side of the stabilizing rod 1 (8820) is provided with an air cylinder (8821), the outer side of the sliding block (82) is fixedly connected to an L-shaped plate (8824), the upper side of the L-shaped plate (8824) is fixedly connected to a connecting disk 2 (8823), and the side of the connecting disk 2 (8823) close to the air cylinder (8821) is fixedly connected to a stabilizing rod 2 (8822).

7. The method for monitoring a storage tank body using ultrasonic guided waves according to claim 6, characterized in that: The left and right sides of the air cylinder (8821) are fixedly connected to mounting rings (8825), the front and rear sides of the mounting ring (8825) are fixedly connected to side plates (8826), the upper side of the side plate (8826) is provided with a movable groove (8827), the inner side of the movable groove (8827) is slidably connected to a reciprocating block (8828), the upper side of the reciprocating block (8828) is rotatably connected to two control plates (8829), the outer sides of the connecting disk 1 (8819) and the connecting disk 2 (8823) are fixedly connected to the connecting block 3 (8830), and the connecting block 3 (8830) is rotatably connected to the control plate (8829).

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