Non-contact chemical storage tank concealed corrosion detection equipment and method

Abstract

The invention belongs to the technical field of storage tank detection, particularly relates to non-contact type chemical storage tank concealed corrosion detection equipment and method, and aims to solve the problems that in the use process of existing corrosion detection equipment, rapid and all-directional detection on a storage tank is inconvenient, and the detection efficiency is relatively low, the following scheme is provided: the non-contact type chemical storage tank concealed corrosion detection equipment comprises a base and four supporting rods, the four supporting rods are fixedly mounted at the top of the base, and a supporting mechanism is arranged at the top of the base and used for supporting the storage tank; the top plate is fixedly mounted at the tops of the four supporting rods, a first sliding groove is formed in the bottom of the top plate, a sliding seat is slidably mounted in the first sliding groove, and a first through groove and a second through groove are formed in the sliding seat; according to the storage tank detection device, in the use process, the storage tank can be rapidly and comprehensively detected, so that the detection efficiency can be effectively improved, and the storage tank detection device is simple in structure and convenient to use.

Description

Technical Field

[0001] This invention relates to the field of storage tank inspection technology, and in particular to a non-contact chemical storage tank concealed corrosion detection device. Background Technology

[0002] Storage tanks, as static equipment used in the petroleum and chemical industries for storing media, are widely used. However, during operation, storage tanks are more prone to electrochemical corrosion, which is more severe than that on the tank walls. Sometimes, corrosion can even lead to perforation and oil leaks. The tank bottom is difficult to inspect and repair, and it is also a region prone to corrosion. Furthermore, the anti-corrosion coating near the weld seams during bottom plate welding is often burned off, further exacerbating the corrosion problem.

[0003] Patent document CN119959240A discloses a corrosion safety detection device and method for chemical storage tanks. The method includes a route planning module for planning the routes of the side detection mechanism and end-face detection components; a lateral drive mechanism that moves the side detection mechanism, with detection units on the side detection mechanism detecting the circumferential sides of the storage tank; a lateral movement component that moves the end-face detection components and detection units to detect the two end faces of the storage tank; an ultrasonic detection module, an infrared detection module, and an image analysis module that identify abnormal conditions in the storage tank; and a comprehensive evaluation module that performs a comprehensive assessment of the corrosion safety of the storage tank and predicts potential risks. This invention rapidly performs all-around detection of the circumferential sides and two end faces of the storage tank, using ultrasonic detection, infrared detection, and image analysis to conduct corrosion safety detection through multiple methods. The detection results from multiple modules are integrated with environmental data to comprehensively assess the corrosion safety of the storage tank and predict potential risks.

[0004] However, the aforementioned patent documents are not convenient for rapid and comprehensive inspection of storage tanks during use, resulting in low inspection efficiency. Therefore, we propose a non-contact chemical storage tank hidden corrosion detection device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing corrosion detection equipment, such as the inconvenience of rapid and comprehensive detection of storage tanks and low detection efficiency, and to propose a non-contact chemical storage tank concealed corrosion detection device.

[0006] The non-contact chemical storage tank concealed corrosion detection equipment provided in this application adopts the following technical solution:

[0007] Non-contact chemical storage tank concealed corrosion detection equipment, including:

[0008] The base and four support rods are fixedly installed on the top of the base. The top of the base is provided with a support mechanism for supporting the storage tank.

[0009] The top plate is fixedly installed on the top of four support rods. The bottom of the top plate is provided with a first sliding groove, and a sliding seat is slidably installed in the first sliding groove. The sliding seat is provided with a first through groove and a second through groove.

[0010] The connecting plate has two parts, both of which are fixedly installed at the bottom of the top plate. A rotating shaft is rotatably installed on each of the two connecting plates. A rotating plate is fixedly connected to one end of each of the two rotating shafts. A second sliding groove is opened on one side of each of the two rotating plates. A slider is slidably installed in each of the two second sliding grooves. A second detection unit is installed on each of the two sliders.

[0011] A first annular plate is fixedly installed at the bottom of the slide block. A first annular groove is formed on the inner wall of the first annular plate. A second annular plate is rotatably installed in the first annular groove. A first detection unit is installed on the second annular plate. A rotating mechanism is provided on the second annular plate to drive the first detection unit to rotate in a circular motion.

[0012] Furthermore, electric push rods are fixedly installed on the bottom inner walls of the four third slides, and telescopic rods are fixedly connected to the output shafts of the four electric push rods. One end of each of the four telescopic rods is fixedly connected to the bottom of the four connecting columns. When the electric push rods are turned on, the telescopic rods drive the connecting columns to move vertically.

[0013] Furthermore, a second motor is fixedly installed at the bottom of each of the two rotating plates, and a second through hole is opened at the bottom of each of the two rotating plates. The two second through holes are respectively connected to the two second sliding grooves. A second screw is rotatably installed in each of the two second through holes, and the two second screws are respectively threadedly connected to the two sliders. When the second motor is turned on, the second screw drives the slider to move vertically.

[0014] Furthermore, a fourth through hole is provided on the slide block, which communicates with the second through groove. A second drive shaft is rotatably installed in the fourth through hole, and a second gear is fixedly installed on the outside of the second drive shaft. The second gear meshes with the first gear. When the first gear rotates, the second gear drives the second drive shaft to rotate.

[0015] Furthermore, a rectangular hole is provided at one end of the second drive shaft, and a rectangular rod is rotatably and slidably installed in the rectangular hole. The rectangular rod is rotatably installed on two connecting plates.

[0016] Furthermore, a first sprocket is fixedly installed at both ends of the rectangular rod, and a second sprocket is fixedly installed at the other end of the two rotating shafts. The first sprocket and the second sprocket are meshed with the same chain. When the rectangular rod rotates, the first sprocket drives the second sprocket to rotate through the chain.

[0017] Furthermore, the rotating mechanism includes a gear ring, and a third annular groove is formed on the inner wall of the second annular groove. The third annular groove communicates with the second through groove. The gear ring is rotatably installed in the third annular groove. The inner wall of the gear ring is fixedly connected to the outer side of the second annular plate. A third gear is fixedly installed on the outer side of the second transmission shaft. The third gear meshes with the gear ring. When the second transmission shaft rotates, the third gear drives the gear ring to rotate.

[0018] Furthermore, a third motor is fixedly installed in the first through groove, and a third through hole is opened on one side inner wall of the first through groove. The third through hole communicates with the second through groove, and a first drive shaft is rotatably installed in the third through hole. One end of the first drive shaft is fixedly connected to the output shaft of the third motor, and a first gear is fixedly installed at the other end of the first drive shaft. When the third motor is turned on, the first drive shaft drives the first gear to rotate.

[0019] Furthermore, a first motor is fixedly installed on one side of the top plate, and a first through hole is opened on one side of the top plate. The first through hole communicates with the first sliding groove. A first screw is rotatably installed in the first through hole. One end of the first screw is fixedly connected to the output shaft of the first motor. The first screw is threadedly connected to the slide block. When the first motor is turned on, the first screw drives the slide block to move horizontally.

[0020] Furthermore, the support mechanism includes four pillars, all of which are fixedly installed on the top of the base. Each of the four pillars has a third sliding groove on its top, and a connecting column is slidably installed in each of the four third sliding grooves. An arc-shaped support plate is fixedly connected to the top of each of the four connecting columns.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. In this solution, the first motor is turned on, which drives the first screw to rotate. The first screw drives the slide to move horizontally, and the first slide drives the first annular plate to move horizontally. During the movement of the first annular plate, the electric push rod is turned on, which drives the telescopic rod to move vertically. The telescopic rod drives the connecting column and the arc-shaped support plate to move vertically, thus avoiding obstructing the horizontal movement of the first annular plate.

[0023] 2. In this solution, the third motor is turned on, which drives the first transmission shaft to rotate. The first transmission shaft drives the first gear to rotate, the first gear drives the second gear to rotate, the second gear drives the second transmission shaft to rotate, the second transmission shaft drives the third gear to rotate, the third gear drives the gear ring to rotate, the gear ring drives the second annular plate to rotate, and the second annular plate drives the first detection unit to perform circular motion.

[0024] 3. This solution utilizes a rectangular hole and a rectangular rod configuration. The second drive shaft rotates the rectangular rod, which in turn rotates two first sprockets. These first sprockets, via two chains, drive two second sprockets, which in turn rotate two rotating shafts. These shafts, in turn, rotate two rotating plates, which in turn rotate two sliders and two second detection units in a circular motion. Then, the second motor is activated, which drives the second screw to rotate. The second screw then moves the slider vertically, which in turn moves the second detection units vertically. This allows the first detection unit and the two second detection units to perform comprehensive and rapid inspection of the storage tank.

[0025] This invention enables rapid and comprehensive testing of storage tanks during use, thereby effectively improving testing efficiency. It has a simple structure and is easy to use. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the front view of the non-contact chemical storage tank concealed corrosion detection equipment proposed in this invention.

[0027] Figure 2 This is a schematic diagram of the top and bottom structure of the non-contact chemical storage tank concealed corrosion detection equipment proposed in this invention.

[0028] Figure 3 This is a schematic diagram of the base of the non-contact chemical storage tank concealed corrosion detection equipment proposed in this invention.

[0029] Figure 4 This is a schematic diagram of the support mechanism for the non-contact chemical storage tank concealed corrosion detection equipment proposed in this invention.

[0030] Figure 5 This is a schematic diagram of the internal structure of the support mechanism of the non-contact chemical storage tank concealed corrosion detection equipment proposed in this invention.

[0031] Figure 6 This is a schematic diagram of the rotating plate of the non-contact chemical storage tank concealed corrosion detection device proposed in this invention.

[0032] Figure 7 This is a schematic diagram of the internal structure of the rotating plate of the non-contact chemical storage tank concealed corrosion detection device proposed in this invention.

[0033] Figure 8 This is a schematic diagram of the structure of the first and second annular plates of the non-contact chemical storage tank concealed corrosion detection device proposed in this invention.

[0034] Figure 9 This is a schematic diagram of the internal structure of the slide of the non-contact chemical storage tank concealed corrosion detection device proposed in this invention.

[0035] Figure 10 This is a schematic diagram of the structure of the third gear and gear ring of the non-contact chemical storage tank concealed corrosion detection device proposed in this invention.

[0036] Figure 11 This is a schematic diagram of the structure of the first sprocket and the second sprocket of the non-contact chemical storage tank concealed corrosion detection device proposed in this invention;

[0037] Figure 12 The present invention provides a non-contact chemical storage tank concealed corrosion detection device. Figure 1 Enlarged structural diagram of section A;

[0038] Figure 13 The present invention provides a non-contact chemical storage tank concealed corrosion detection device. Figure 2 Enlarged structural diagram of section B;

[0039] Figure 14 The present invention provides a non-contact chemical storage tank concealed corrosion detection device. Figure 7 Enlarged structural diagram of section C;

[0040] Figure 15 The present invention provides a non-contact chemical storage tank concealed corrosion detection device. Figure 10 A magnified structural diagram of part D in the middle.

[0041] Reference numerals: 1. Base; 2. Support rod; 3. Top plate; 4. Column; 5. Connecting column; 6. Arc-shaped support plate; 7. Connecting plate; 8. First annular plate; 9. First motor; 10. First slide groove; 11. Slide seat; 12. First screw; 13. Third slide groove; 14. Electric push rod; 15. Telescopic rod; 16. First through groove; 17. Third motor; 18. First drive shaft; 19. First gear; 20. Second gear; 21. Second drive shaft; 22. Third gear; 23. Rectangular hole; 24. Gear ring; 25. Annular groove; 26. Second annular plate; 27. First detection unit; 28. Rotating plate; 29. ​​Second slide groove; 30. Second motor; 31. Second screw; 32. Slider; 33. Second detection unit; 34. Rectangular rod; 35. First sprocket; 36. Chain; 37. Second sprocket; 38. Rotating shaft; 39. Second through groove. Detailed Implementation

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] Example 1

[0044] Reference Figures 1-15 Non-contact chemical storage tank concealed corrosion detection equipment, including:

[0045] The base 1 and four support rods 2 are fixedly installed on the top of the base 1. The top of the base 1 is provided with a support mechanism for supporting the storage tank.

[0046] Top plate 3 is fixedly installed on the top of four support rods 2. The bottom of top plate 3 is provided with a first sliding groove 10. A slide block 11 is slidably installed in the first sliding groove 10. A first through groove 16 and a second through groove 39 are provided in the slide block 11.

[0047] There are two connecting plates 7. Both connecting plates 7 are fixedly installed at the bottom of the top plate 3. A rotating shaft 38 is rotatably installed on both connecting plates 7. A rotating plate 28 is fixedly connected to one end of each rotating shaft 38. A second sliding groove 29 is opened on one side of each rotating plate 28. A slider 32 is slidably installed in each of the two second sliding grooves 29. A second detection unit 33 is installed on each of the two sliders 32.

[0048] The first annular plate 8 is fixedly installed at the bottom of the slide block 11. The inner wall of the first annular plate 8 is provided with a first annular groove 25. The second annular plate 26 is rotatably installed in the first annular groove 25. The first detection unit 27 is installed on the second annular plate 26. The second annular plate 26 is provided with a rotating mechanism for driving the first detection unit 27 to move in a circular motion.

[0049] In this embodiment, electric push rods 14 are fixedly installed on the bottom inner walls of the four third slide grooves 13. The output shafts of the four electric push rods 14 are fixedly connected to telescopic rods 15. One end of the four telescopic rods 15 is fixedly connected to the bottom of the four connecting columns 5. When the electric push rods 14 are turned on, the telescopic rods 15 drive the connecting columns 5 to move vertically. The bottoms of the two rotating plates 28 are fixedly installed with second motors 30. The bottoms of the two rotating plates 28 are provided with second through holes. The two second through holes are respectively connected to the two second slide grooves 29. The two second through holes are rotatably installed with second screws 31. The two second screws 31 are respectively threadedly connected to the two sliders 32. When the second motors 30 are turned on, the second screws 31 drive the sliders 32 to move vertically.

[0050] In this embodiment, a fourth through hole is provided on the slide 11, which communicates with the second through groove 39. A second drive shaft 21 is rotatably installed in the fourth through hole. A second gear 20 is fixedly installed on the outside of the second drive shaft 21. The second gear 20 meshes with the first gear 19. When the first gear 19 rotates, the second gear 20 drives the second drive shaft 21 to rotate. A rectangular hole 23 is provided at one end of the second drive shaft 21. A rectangular rod 34 is rotatably slidably installed in the rectangular hole 23. The rectangular rod 34 is rotatably installed on the two connecting plates 7.

[0051] In this embodiment, a first sprocket 35 is fixedly installed at both ends of the rectangular rod 34, and a second sprocket 37 is fixedly installed at the other end of the two rotating shafts 38. The first sprocket 35 and the second sprocket 37 are meshed with the same chain 36. When the rectangular rod 34 rotates, the first sprocket 35 drives the second sprocket 37 to rotate through the chain 36. The rotating mechanism includes a gear ring 24. A third annular groove is opened on the inner wall of the second annular groove. The third annular groove communicates with the second through groove 39. The gear ring 24 is rotatably installed in the third annular groove. The inner wall of the gear ring 24 is fixedly connected to the outer side of the second annular plate 26. A third gear 22 is fixedly installed on the outer side of the second drive shaft 21. The third gear 22 meshes with the gear ring 24. When the second drive shaft 21 rotates, the third gear 22 drives the gear ring 24 to rotate.

[0052] In this embodiment, a third motor 17 is fixedly installed in the first through groove 16. A third through hole is opened on one side of the inner wall of the first through groove 16, which communicates with the second through groove 39. A first drive shaft 18 is rotatably installed in the third through hole. One end of the first drive shaft 18 is fixedly connected to the output shaft of the third motor 17, and a first gear 19 is fixedly installed on the other end of the first drive shaft 18. When the third motor 17 is turned on, the first drive shaft 18 drives the first gear 19 to rotate. A first motor 9 is fixedly installed on one side of the top plate 3, and a first through hole is opened on one side of the top plate 3. A through hole communicates with the first slide groove 10. A first screw 12 is rotatably installed in the first through hole. One end of the first screw 12 is fixedly connected to the output shaft of the first motor 9. The first screw 12 is threadedly connected to the slide block 11. When the first motor 9 is turned on, the first screw 12 drives the slide block 11 to move horizontally. The support mechanism includes four pillars 4. All four pillars 4 are fixedly installed on the top of the base 1. A third slide groove 13 is opened on the top of each of the four pillars 4. A connecting column 5 is slidably installed in each of the four third slide grooves 13. An arc-shaped support plate 6 is fixedly connected to the top of each of the four connecting columns 5.

[0053] The implementation principle in this embodiment is as follows: During use, the storage tank is placed on multiple arc-shaped support plates 6. The first motor 9 is turned on, which drives the first screw 12 to rotate. The first screw 12 drives the slide 11 to move horizontally, and the first slide 11 drives the first annular plate 8 to move horizontally. During the movement of the first annular plate 8, the electric push rod 14 is turned on, which drives the telescopic rod 15 to move vertically. The telescopic rod 15 drives the connecting column 5 and the arc-shaped support plate 6 to move vertically, thus avoiding obstructing the horizontal movement of the first annular plate 8. Then, the third motor 17 is turned on, which drives the first transmission shaft 18 to rotate. The first transmission shaft 18 drives the first gear 19 to rotate, which drives the second gear 20 to rotate. The second gear 20 drives the second transmission shaft 21 to rotate, which drives the third gear 22 to rotate. The third gear 22 drives the gear ring 24 to rotate, and the gear ring 24 drives the second annular plate 26 to rotate. The rotation of the second annular plate 26 causes the first detection unit 27 to rotate in a circular motion. Simultaneously, through the rectangular hole 23 and the rectangular rod 34, the second transmission shaft 21 drives the rectangular rod 34 to rotate. The rectangular rod 34 drives the two first sprockets 35 to rotate. The two first sprockets 35 drive the two second sprockets 37 to rotate through the two chains 36. The two second sprockets 37 drive the two rotating shafts 38 to rotate. The two rotating shafts 38 drive the two rotating plates 28 to rotate. The two rotating plates 28 drive the two sliders 32 and the two second detection units 33 to rotate in a circular motion. Then, the second motor 30 is turned on, which drives the second screw 31 to rotate. The second screw 31 drives the slider 32 to move vertically. The slider 32 drives the second detection units 33 to move vertically. Thus, the first detection unit 27 and the two second detection units 33 can perform all-round rapid detection of the storage tank, effectively improving the detection efficiency.

[0054] Example 2

[0055] The difference between this embodiment and Embodiment 1 is that the support mechanism includes four pillars 4. The top of the base 1 is provided with an installation groove, and a movable plate is slidably installed in the installation groove. All four pillars 4 are fixedly installed on the top of the movable plate. A first cylinder is fixedly installed on the outside of the base 1. The output shaft of the first cylinder is fixedly connected to the outside of the movable plate. A third sliding groove 13 is provided on the top of each of the four pillars 4. A connecting column 5 is slidably installed in each of the four third sliding grooves 13. An arc-shaped support plate 6 is fixedly connected to the top of each of the four connecting columns 5. An electric push rod 14 is fixedly installed on the bottom inner wall of each of the four third sliding grooves 13. A telescopic rod 15 is fixedly connected to the output shaft of each of the four electric push rods 14. One end of each of the four telescopic rods 15 is fixedly connected to the bottom of the four connecting columns 5. When the first cylinder is opened, the first cylinder drives the movable plate to move horizontally. The movable plate drives the support mechanism to move horizontally. When the support mechanism moves out of the base 1, the storage tank can be easily picked up and put down.

[0056] Example 3

[0057] The difference between this embodiment and Embodiment 1 is that: four columns are fixedly installed on the top of the base 1, and each of the four columns has a movable groove on its top. Four support rods 2 are slidably installed in the four movable grooves respectively. A second cylinder is fixedly installed on the bottom inner wall of each of the four movable grooves. The output shafts of the four second cylinders are fixedly connected to the bottom of the four support rods 2 respectively. A guide groove is opened on the bottom of each of the four support rods 2, and a guide rod is slidably installed in each of the four guide grooves. One end of each of the four guide rods is fixedly connected to the bottom inner wall of the four movable grooves respectively. When the four second cylinders are opened, the four second cylinders drive the four support rods 2 to move vertically, and the four support rods 2 drive the top plate 3 to move vertically. This allows for adjustment of the height of the first detection unit 27 and the two second detection units 33, making it suitable for different types of storage tanks.

[0058] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A non-contact chemical storage tank concealed corrosion detection device, characterized in that: include: A base (1) and four support rods (2), the four support rods (2) are all fixedly installed on the top of the base (1), and a support mechanism is provided on the top of the base (1) for supporting the storage tank; Top plate (3), the top plate (3) is fixedly installed on the top of four support rods (2), the bottom of the top plate (3) is provided with a first sliding groove (10), a sliding seat (11) is slidably installed in the first sliding groove (10), and a first through groove (16) and a second through groove (39) are provided in the sliding seat (11); Connecting plate (7), two connecting plates (7) are provided, both connecting plates (7) are fixedly installed at the bottom of the top plate (3), both connecting plates (7) are rotatably installed with a rotating shaft (38), one end of both rotating shafts (38) is fixedly connected to a rotating plate (28), one side of both rotating plates (28) is provided with a second sliding groove (29), both second sliding grooves (29) are slidably installed with a slider (32), and both sliders (32) are installed with a second detection unit (33); The first annular plate (8) is fixedly installed at the bottom of the slide (11). The inner wall of the first annular plate (8) is provided with a first annular groove (25). A second annular plate (26) is rotatably installed in the first annular groove (25). A first detection unit (27) is installed on the second annular plate (26). A rotating mechanism is provided on the second annular plate (26) to drive the first detection unit (27) to rotate in a circular motion.

2. The non-contact chemical storage tank concealed corrosion detection equipment according to claim 1, characterized in that: The support mechanism includes four pillars (4), all of which are fixedly installed on the top of the base (1). Each of the four pillars (4) has a third sliding groove (13) on its top. Each of the four third sliding grooves (13) has a connecting column (5) slidably installed in its top. Each of the four connecting columns (5) has an arc-shaped support plate (6) fixedly connected to its top.

3. The non-contact chemical storage tank concealed corrosion detection equipment according to claim 2, characterized in that: Electric push rods (14) are fixedly installed on the bottom inner walls of the four third slide grooves (13). The output shafts of the four electric push rods (14) are fixedly connected to telescopic rods (15). One end of the four telescopic rods (15) is fixedly connected to the bottom of the four connecting columns (5).

4. The non-contact chemical storage tank concealed corrosion detection equipment according to claim 3, characterized in that: A first motor (9) is fixedly installed on one side of the top plate (3). A first through hole is opened on one side of the top plate (3). The first through hole communicates with the first slide groove (10). A first screw (12) is rotatably installed in the first through hole. One end of the first screw (12) is fixedly connected to the output shaft of the first motor (9). The first screw (12) is threadedly connected to the slide block (11).

5. The non-contact chemical storage tank concealed corrosion detection equipment according to claim 4, characterized in that: A second motor (30) is fixedly installed at the bottom of each of the two rotating plates (28). A second through hole is opened at the bottom of each of the two rotating plates (28). The two second through holes are respectively connected to the two second sliding grooves (29). A second screw (31) is rotatably installed in each of the two second through holes. The two second screws (31) are respectively threadedly connected to the two sliders (32).

6. The non-contact chemical storage tank concealed corrosion detection equipment according to claim 5, characterized in that: A third motor (17) is fixedly installed in the first through groove (16). A third through hole is opened on one side inner wall of the first through groove (16). The third through hole communicates with the second through groove (39). A first transmission shaft (18) is rotatably installed in the third through hole. One end of the first transmission shaft (18) is fixedly connected to the output shaft of the third motor (17). A first gear (19) is fixedly installed on the other end of the first transmission shaft (18).

7. The non-contact chemical storage tank concealed corrosion detection equipment according to claim 6, characterized in that: The slide (11) has a fourth through hole, which communicates with the second through groove (39). A second drive shaft (21) is rotatably installed in the fourth through hole. A second gear (20) is fixedly installed on the outside of the second drive shaft (21). The second gear (20) meshes with the first gear (19).

8. The non-contact chemical storage tank concealed corrosion detection equipment according to claim 7, characterized in that: The rotating mechanism includes a gear ring (24), and a third annular groove is provided on the inner wall of the second annular groove. The third annular groove communicates with the second through groove (39). The gear ring (24) is rotatably installed in the third annular groove. The inner wall of the gear ring (24) is fixedly connected to the outer side of the second annular plate (26). A third gear (22) is fixedly installed on the outer side of the second transmission shaft (21). The third gear (22) meshes with the gear ring (24).

9. The non-contact chemical storage tank concealed corrosion detection equipment according to claim 8, characterized in that: A rectangular hole (23) is provided at one end of the second drive shaft (21). A rectangular rod (34) is rotatably and slidably installed in the rectangular hole (23). The rectangular rod (34) is rotatably installed on two connecting plates (7). A first sprocket (35) is fixedly installed at both ends of the rectangular rod (34). A second sprocket (37) is fixedly installed at the other end of the two rotating shafts (38). The first sprocket (35) and the second sprocket (37) are meshed with the same chain (36).

10. A non-contact method for detecting concealed corrosion in chemical storage tanks, characterized in that, include: The storage tank is placed on multiple arc-shaped support plates. The first motor is turned on, driving the first screw to rotate. The first screw drives the slide to move horizontally, which in turn drives the first annular plate to move horizontally. During the movement of the first annular plate, an electric push rod is activated, causing a telescopic rod to move vertically. The telescopic rod then drives the connecting column and the arc-shaped support plates to move vertically, preventing obstruction of the horizontal movement of the first annular plate. Then, the third motor is turned on, driving the first drive shaft to rotate. The first drive shaft drives the first gear to rotate, which in turn drives the second gear to rotate. The second gear drives the second drive shaft to rotate, which in turn drives the third gear to rotate. The third gear drives the gear ring to rotate, which in turn drives the second annular plate to rotate. The second annular plate drives the first detection unit to perform circular motion. Simultaneously, through the arrangement of a rectangular hole and a rectangular rod, the second transmission shaft drives the rectangular rod to rotate. The rectangular rod drives two first sprockets to rotate. The two first sprockets drive two second sprockets to rotate via two chains. The two second sprockets drive two rotating shafts to rotate. The two rotating shafts drive two rotating plates to rotate. The two rotating plates drive two sliders and two second detection units to perform circular motion. Then, the second motor is turned on, which drives the second screw to rotate. The second screw drives the slider to move vertically. The slider drives the second detection unit to move vertically. Thus, the first detection unit and the two second detection units perform comprehensive and rapid detection of the storage tank.

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