Operation state monitoring and analyzing device of trailing suction dredging ship
By combining flange rings and ultrasonic monitoring devices on rake suction dredging ships, the problems of operating efficiency and accuracy control of rake suction dredging ships are solved, and efficient and accurate dredging operations and low-cost equipment maintenance are achieved.
Patent Information
- Application Number
- CN202422545465.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The efficiency of dredging operations of rake suction dredging ships cannot be accurately controlled and the accuracy of dredging ships are adjusted, resulting in the construction efficiency and accuracy that cannot meet the high-demand engineering needs.
The combination of pipes with flange rings and ultrasonic monitoring devices, including ultrasonic detection components and receiving components, ensures the sealing of the device and the efficient operation of the scraper, and reduces water flow impact and rope wear through arc-shaped scraper design, limiting ring, sealing ring and roller structure.
Accurate control of dredging operations of rake suction dredging ships is achieved, operating efficiency and accuracy are improved, equipment failures and maintenance frequency is reduced, replacement costs are reduced, and the accuracy of detection data is ensured.
Smart Images
Figure CN223154534U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a monitoring and analyzing device, in particular to an operating state monitoring and analyzing device for a trailing suction dredging vessel. Background Art
[0002] With the rapid development of economic globalization, the scale of port channel construction, land reclamation, river and lake regulation and other projects has become larger and larger, and the requirements for construction period have become higher and higher. How to improve the dredging efficiency of dredgers is particularly urgent. At the same time, with the increasingly fierce competition in the dredging and filling industry in recent years, in the context of shrinking profit margins, in order to tap more economic benefits, improving the construction efficiency of trailing suction dredging ships has become the key. Therefore, the requirements for dredging accuracy and efficiency are getting higher and higher, so it is necessary to accurately control the efficiency of dredging operations of trailing suction dredging ships and adjust the accuracy of dredging operations of trailing suction dredging ships in order to achieve good dredging benefits. Utility Model Content
[0003] The utility model adopts a combination of a pipeline with a flange ring and an ultrasonic monitoring device, which solves the problem of being unable to accurately control the efficiency of the dredging operation of the trailing suction dredging ship and adjust the accuracy of the dredging operation of the trailing suction dredging ship.
[0004] The utility model provides an operating status monitoring and analysis device for a trailing suction dredging vessel, comprising a pipeline with flange rings extending at both ends, and an ultrasonic monitoring device is arranged on the outer side of the pipeline wall;
[0005] The ultrasonic monitoring device comprises an ultrasonic detection component and an ultrasonic receiving component which are symmetrically arranged;
[0006] The ultrasonic detection assembly includes a first box body with a first cover plate screwed on the top surface, a first layer plate and a second layer plate are arranged in sequence from top to bottom in the first box body, the first layer plate covers two first fixing protrusions, the two first fixing protrusions are respectively arranged on the top inner walls of the two side walls of the first box body, a first rotating shaft and a second rotating shaft are respectively arranged downward at the bottoms of the two first fixing protrusions, a first motor connected to the first rotating shaft and the second rotating shaft is arranged on the first layer plate, a first pull rope and a second pull rope are correspondingly wound on the first rotating shaft and the second rotating shaft, the first pull rope and the second pull rope pass through the second layer plate and the bottom wall of the first box body and are connected to the first scraper, the first scraper is arranged in contact with the outer side of the bottom wall of the first box body, the second layer plate is clamped in the first box body, and an electrically connected radiator, a controller and an ultrasonic transmitter are arranged in sequence from top to bottom on the second layer plate;
[0007] The ultrasonic receiving component includes a second box body with a second cover plate screwed to the bottom surface. A fourth layer plate and a third layer plate are sequentially arranged in the second box body from top to bottom. The fourth layer plate is clamped in the second box body. Ultrasonic receivers are arranged on the fourth layer plate corresponding to the ultrasonic transmitters. The third layer plate is screwed to the bottom walls of two third fixing bumps. The two third fixing bumps are arranged on the inner bottom wall of the second box body. A third rotating shaft and a fourth rotating shaft are respectively arranged on the third fixing bumps. A second motor connected to the third rotating shaft and the fourth rotating shaft is arranged on the third layer plate. The third rotating shaft and the fourth rotating shaft are respectively wound with a third pulling rope and a fourth pulling rope. The third pulling rope and the fourth pulling rope penetrate through the fourth layer plate and the top wall of the second box body and are connected to a second scraping plate. The second scraping plate is arranged in a manner of fitting the outer side of the bottom wall of the second box body.
[0008] Further, both the first scraping plate and the second scraping plate are structures with fixing rods embedded at both ends, a smooth bottom surface, and an arc-shaped top surface. The two fixing rods of the first scraping plate are respectively connected to the first pulling rope and the second pulling rope. The two ends of the two fixing rods of the second scraping plate are respectively connected to the third pulling rope and the fourth pulling rope.
[0009] Further, two groups of limiting convex rings are respectively arranged at both ends of the fixing rod. One group of the limiting convex rings includes two adjacent limiting convex rings.
[0010] Further, a first sealing ring is arranged at the bottom end of the first box body. A first installation hole is opened on the first sealing ring. The first box body is screwed to the pipeline through a bolt inserted into the first installation hole; a second sealing ring is arranged at the top end of the second box body. A second installation hole is opened on the second sealing ring. The second box body is screwed to the pipeline through a bolt inserted into the second installation hole.
[0011] Further, at the joints of the pipeline with the bottom end of the first box body and the top end of the second box body, four clamping convex blocks are respectively arranged. The four clamping convex blocks respectively cover the two ends of the bottom of the first box body and the two ends of the top of the second box body. Threading holes are opened on the four clamping convex blocks. The first pulling rope, the second pulling rope, the third pulling rope, and the fourth pulling rope respectively penetrate through the threading holes.
[0012] Further, rollers are respectively clamped at the joints of the two ends of the bottom of the first box body and the two ends of the top of the second box body with the clamping convex blocks. The first pulling rope, the second pulling rope, the third pulling rope, and the fourth pulling rope are respectively wound around the four rollers.
[0013] Further, a plurality of fastening through holes are arrayed on the flange ring, and a sealing washer is arranged inside the flange ring.
[0014] The beneficial effects of the present utility model are as follows:
[0015] 1. The present utility model adopts the combined setting of a pipeline with a flange ring and an ultrasonic monitoring device, which solves the problem that it is impossible to accurately control the dredging operation efficiency of a trailing suction hopper dredger and adjust the dredging operation precision of the trailing suction hopper dredger, and thus it is impossible to adjust the trailing suction hopper dredger according to the actual operation conditions.
[0016] 2. The present utility model adopts the design of a scraper with an arc-shaped structure, which effectively reduces the impact of the water flow in the pipeline on the scraper, improves the working efficiency of the scraper, and at the same time reduces the acting force of the water flow on the pulling rope, increases the service life of the pulling rope, reduces the number and duration of maintenance, enables the monitoring and analysis device to accurately monitor the concentration of the muddy water mixture, and thus improves the dredging operation efficiency of the trailing suction hopper dredger by adjusting the dredging operation precision of the trailing suction hopper dredger.
[0017] 3. The present utility model adopts the method of arranging limit convex rings at both ends of the fixed ring arranged inside the scraper, which can effectively prevent the situation that the working efficiency of the scraper is reduced due to the displacement of the pulling rope, ensure that the scraper can closely fit on the top wall or the bottom wall of the box body, and ensure the working efficiency of the scraper.
[0018] 4. The present utility model adopts the combined setting of a sealing ring and a clamping convex block at the connection between the box body and the pipeline, which ensures that the outer walls of the box body and the pipeline can closely fit, effectively prevents the problem that the muddy water mixture in the pipeline leaks due to poor sealing during the operation of the trailing suction hopper dredger, thereby causing equipment damage.
[0019] 5. The present utility model adopts the design of respectively arranging rollers at the connection positions of the two ends of the bottom of the first box body and the two ends of the top of the second box body with the clamping convex block, which ensures that the pulling rope can smoothly pass through the two ends of the bottom of the first box body, the two ends of the top of the second box body and the clamping convex block, reduces the wear of the pulling rope, increases the service life of the pulling rope, reduces the number of maintenance, and at the same time improves the working efficiency of the pulling rope and the scraper, and ensures the accuracy of the detection data.
[0020] 6. The present utility model adopts the combined setting of opening fastening through holes on the flange ring of the pipeline and arranging a sealing washer inside the flange ring, which ensures that the analysis device can be tightly connected to the mud pipe and prevents the problem of leakage during the transportation process. Therefore, when replacing the monitoring and analysis device, it is not necessary to replace the whole mud pipe, which reduces the replacement cost and at the same time minimizes the adverse impact on the dredging operation of the trailing suction hopper dredger caused by equipment replacement and maintenance. Description of the Drawings
[0021] Figure 1This is the front view structural schematic diagram of the present utility model;
[0022] Figure 2 This is the side view sectional structural schematic diagram of the present utility model;
[0023] Figure 3 is Figure 2 the enlarged sectional structural schematic diagram of structure A in
[0024] Figure 4 This is the side view sectional structural schematic diagram of the ultrasonic detection component of the present utility model;
[0025] Figure 5 This is the side view sectional structural schematic diagram of the ultrasonic receiving component of the present utility model;
[0026] Figure 6 This is the side view sectional structural schematic diagram of the scraper of the present utility model;
[0027] Figure 7 This is the front view structural schematic diagram of the fixing rod of the present utility model.
[0028] Reference numerals: 1. flange ring, 2. pipeline, 3. first cover plate, 4. first box body, 5. first layer plate, 6. second layer plate, 7. first fixing convex block, 8. first rotating shaft, 9. second rotating shaft, 10. first motor, 11. first pulling rope, 12. second pulling rope, 13. first scraper, 14. radiator, 15. controller, 16. ultrasonic transmitter, 17. second cover plate, 18. second box body, 19. fourth layer plate, 20. third layer plate, 21. ultrasonic receiver, 22. third fixing convex block, 23. third rotating shaft, 24. fourth rotating shaft, 25. second motor, 26. third pulling rope, 27. fourth pulling rope, 28. second scraper, 29. fixing rod, 30. limiting convex ring, 31. first sealing ring, 32. first mounting hole, 33. second sealing ring, 34. second mounting hole, 35. engaging convex block, 36. roller, 37. fastening through hole, 38. sealing gasket, 39. water inlet, 40. water outlet, 41. ultrasonic detection component, 42. ultrasonic receiving component. Detailed implementation manners
[0029] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.
[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0032] As Figure 1 shown, the present utility model provides an operation state monitoring and analysis device for a trailing suction dredger, which includes a pipeline 2 with flange rings 1 extending at both ends, and an ultrasonic monitoring device is arranged on the outer side of the pipe wall of the pipeline 2;
[0033] As Figure 2 shown, the ultrasonic monitoring device includes symmetrically arranged ultrasonic detection components 41 and ultrasonic receiving components 42;
[0034] As Figure 4As shown, the ultrasonic detection component 41 includes a first box body 4 with a first cover plate 3 screwed to the top surface. Inside the first box body 4, a first layer plate 5 and a second layer plate 6 are sequentially arranged from top to bottom. The first layer plate 5 covers two first fixing bumps 7. The first layer plate 5 is covered on the first fixing bumps 7 by screws, and the top ends of the screws are inside the first fixing bumps 7. The two first fixing bumps 7 are respectively arranged on the inner walls at the top ends of the two side walls of the first box body 4. At the bottoms of the two first fixing bumps 7, a first rotating shaft 8 and a second rotating shaft 9 are respectively arranged downward. A first motor 10 connected to the first rotating shaft 8 and the second rotating shaft 9 is arranged on the first layer plate 5. The first motor 10 is an integrated DC brushless servo motor of model RGM5730PGH with the brand PRMotor. A first pulling rope 11 and a second pulling rope 12 are correspondingly wound on the first rotating shaft 8 and the second rotating shaft 9. Both the first pulling rope 11 and the second pulling rope 12 are high-strength wear-resistant pulling ropes. The materials of the high-strength wear-resistant pulling ropes are diverse, including but not limited to ultra-high molecular weight polyethylene (UHMWPE), nylon, aramid (such as Kevlar), polyester, etc. The first pulling rope 11 and the second pulling rope 12 penetrate through the second layer plate 6 and the bottom wall of the first box body 4 and are connected to a first scraping plate 13. The first scraping plate 13 is arranged to fit the outer side of the bottom wall of the first box body 4. The second layer plate 6 is snap-fitted inside the first box body 4. On the second layer plate 6, a radiator 14 of model CR-1400EVO ARGB with the brand Jonsbo, a controller 15 of model IPC-610110 with the brand ad i pcom, and an ultrasonic transmitter 16 of model SCN-1428SC with the brand Honeywe l are sequentially arranged from top to bottom. The controller 15 is electrically connected to a display and a computer;
[0035] As Figure 5As shown in the figure, the ultrasonic receiving component 42 includes a second box body 18 with a second cover plate 17 screwed to the bottom surface. Inside the second box body 18, a fourth layer plate 19 and a third layer plate 20 are arranged in sequence from top to bottom. The fourth layer plate 19 is clamped on the fourth fixing bumps by screws, and the top ends of the screws are inside the fourth fixing bumps. The two fourth fixing bumps are respectively arranged on the inner walls at the top ends of the two side walls of the second box body 18. An ultrasonic receiver 21 with the brand: Honeywe l and the model: SCN-1530SC is arranged on the fourth layer plate 19 corresponding to the ultrasonic transmitter. The third layer plate 20 is screwed to the bottom walls of two third fixing bumps 22. The two third fixing bumps 22 are arranged on the inner wall at the bottom end of the second box body 18. A third rotating shaft 23 and a fourth rotating shaft 24 are respectively arranged on the third fixing bumps 22. A second motor 25 connected to the third rotating shaft 23 and the fourth rotating shaft 24 is arranged on the third layer plate 20. The second motor 25 is an integrated DC brushless servo motor with the brand: PRMotor and the model: RGM5730PGH. A third pulling rope 26 and a fourth pulling rope 27 are wound around the third rotating shaft 23 and the fourth rotating shaft 24 respectively. Both the third pulling rope 26 and the fourth pulling rope 27 are high-strength pulling ropes. The materials of the high-strength wear-resistant pulling ropes are diverse, including but not limited to ultra-high molecular weight polyethylene (UHMWPE), nylon, aramid (such as Kevlar), polyester, etc. The third pulling rope 26 and the fourth pulling rope 27 pass through the fourth layer plate 19 and the top wall of the second box body 18 and are connected to the second scraper 28. The second scraper 28 is arranged to fit the outer side of the bottom wall of the second box body.
[0036] As Figure 2 , Figure 4 , Figure 5 As shown in the figure, the pipeline 2 is a reduced-diameter pipeline 2 connected to the mud pipeline section from the mud pump to the loading bin valve. The pipeline 2 is horizontally arranged on the mud pipeline with the water inlet 39 facing the water outlet 40, and the diameter of the water inlet 39 end is slightly smaller than that of the water outlet 40 end. The water inlet 39 is close to the mud pump end, and the water outlet 40 is close to the loading bin valve end. The bottom wall of the first box body 4 is inclined from the water inlet 39 direction to the water outlet 40 direction, and the top wall of the second box body 18 is inclined from the water inlet 39 direction to the water outlet 40 direction. The bottom wall of the first box body 4 and the top wall of the second box body 18 are arranged in a horizontal eight-character symmetry.
[0037] As Figure 6 As shown in the figure, both the first scraper 13 and the second scraper 28 are structures with fixing rods 29 embedded at both ends, a smooth bottom surface, and an arc-shaped top surface. The first scraper 13 and the second scraper 28 can be made of a single material such as plastic, rubber, high molecular polyethylene, or metal, or can be made of a mixture of multiple materials; the two fixing rods 29 of the first scraper 13 are respectively connected to the first pulling rope 11 and the second pulling rope 12, and both ends of the two fixing rods 29 of the second scraper 28 are respectively connected to the third pulling rope 26 and the fourth pulling rope 27.
[0038] AsFigure 7 As shown, two groups of limiting convex rings 30 are respectively arranged at both ends of the fixed rod 29, and one group of limiting convex rings 30 includes two adjacent limiting convex rings 30.
[0039] As Figure 4 shown, a first sealing ring 31 is arranged at the bottom end of the first box body 4. A first mounting hole 32 is formed in the first sealing ring 31, and a sealing ring is arranged on the inner ring of the first sealing ring 31. The first box body 4 is screwed to the pipeline 2 through bolts inserted into the first mounting hole 32.
[0040] As Figure 5 shown, a second sealing ring 33 is arranged at the top end of the second box body 18. A second mounting hole 34 is formed in the second sealing ring 33, and a sealing ring is arranged on the inner ring of the second sealing ring 33. The second box body 18 is screwed to the pipeline 2 through bolts inserted into the second mounting hole 34.
[0041] As Figure 2 shown, at the connection positions between the pipeline 2 and the bottom end of the first box body 4 and the top end of the second box body 18, four engaging convex blocks 35 are respectively arranged. The four engaging convex blocks 35 respectively cover the two ends at the bottom of the first box body 4 and the two ends at the top of the second box body 18, and the height of the four engaging convex blocks 35 is slightly higher than the height of the top end of the scraper. Threading holes are formed in the four engaging convex blocks 35, and the first pulling rope 11, the second pulling rope 12, the third pulling rope 26, and the fourth pulling rope 27 respectively penetrate through the threading holes.
[0042] As Figure 3 shown, receiving grooves are formed at the connection positions between the two ends at the bottom of the first box body 4 and the two ends at the top of the second box body 18 and the engaging convex blocks 35. The receiving grooves communicate with the threading holes of the engaging convex blocks 35, the two ends at the bottom of the first box body 4, and the two ends at the top of the second box body 18. The receiving grooves at the ends of the first box body 4 and the second box body 18 and the corresponding receiving grooves on the engaging convex blocks 35 form an annular structure with a diameter larger than the diameter of the roller 36. The roller 36 is clamped in the receiving groove, and the first pulling rope 11, the second pulling rope 12, the third pulling rope 26, and the fourth pulling rope 27 are respectively wound around the four rollers 36.
[0043] As Figure 1 shown, a plurality of fastening through holes 37 are arrayed on the flange ring 1, and a sealing gasket 38 is arranged inside the flange ring 1.
[0044] The specific working principle is:
[0045] During the dredging operation of a trailing suction hopper dredger, the muddy water mixture is pumped into the mud pipe by a mud pump and enters the mud bunker for storage and transportation after passing through the monitoring and analysis device. Therefore, sediment and other substances that affect the transmission of ultrasonic waves often adhere to the bottom surface of the ultrasonic detection component and the top surface of the ultrasonic receiving component. Therefore, the bottom surface of the ultrasonic detection component and the top surface of the ultrasonic receiving component are set as inclined planes that slope from the water inlet to the water outlet direction, and a scraper is arranged on the inclined plane. The motor controls and drives the scraper to move left and right along the inclined plane through a pulling rope. When moving, the scraper shovels up the sediment adhering to the bottom surface of the ultrasonic detection component and the top surface of the ultrasonic receiving component. The shoveled sediment is carried away from the bottom surface of the ultrasonic detection component and the top surface of the ultrasonic receiving component by the impact of the high-speed flowing muddy water mixture and is taken to the mud bunker;
[0046] At this time, the ultrasonic transmitter in the ultrasonic detection component emits ultrasonic pulses into the muddy water mixture. When these pulses propagate in the muddy water mixture, they will interact with suspended particles, bubbles, etc. in the muddy water mixture. Except for part of the reflected energy, the remaining energy is received by the ultrasonic receiver in the ultrasonic receiving component and the data is transmitted to the controller. The controller calculates the physical parameters of the muddy water mixture by measuring the propagation speed and reflection degree of ultrasonic waves in the muddy water mixture. At the same time, by comparing with the set detection parameters, the concentration of the muddy water mixture is inferred, and the monitoring and analysis data is transmitted to a computer or a display to complete a detection task.
[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. An operating state monitoring and analysis device for a trailing suction hopper dredger, characterized in that: It includes a pipe with flange rings extending at both ends, and an ultrasonic monitoring device is arranged on the outer side of the pipe wall of the pipe; The ultrasonic monitoring device includes symmetrically arranged ultrasonic detection components and ultrasonic receiving components; The ultrasonic detection component includes a first box body with a first cover plate screwed on the top surface. In the first box body, a first layer plate and a second layer plate are sequentially arranged from top to bottom. The first layer plate covers two first fixing bumps, and the two first fixing bumps are respectively arranged on the inner walls of the top ends of the two side walls of the first box body. At the bottom of the two first fixing bumps, a first rotating shaft and a second rotating shaft are respectively arranged downward. A first motor connected to the first rotating shaft and the second rotating shaft is arranged on the first layer plate. A first pulling rope and a second pulling rope are wound on the first rotating shaft and the second rotating shaft correspondingly. The first pulling rope and the second pulling rope penetrate through the second layer plate and the bottom wall of the first box body and are connected to a first scraping plate. The first scraping plate is arranged in a manner of fitting the outer side of the bottom wall of the first box body. The second layer plate is clamped in the first box body. On the second layer plate, a radiator, a controller and an ultrasonic transmitter are sequentially arranged from top to bottom and are electrically connected; The ultrasonic receiving component includes a second box body with a second cover plate screwed on the bottom surface. In the second box body, a fourth layer plate and a third layer plate are sequentially arranged from top to bottom. The fourth layer plate is clamped in the second box body. An ultrasonic receiver is arranged on the fourth layer plate corresponding to the ultrasonic transmitter. The third layer plate is screwed on the bottom walls of two third fixing bumps, and the two third fixing bumps are arranged on the inner wall of the bottom end of the second box body. A third rotating shaft and a fourth rotating shaft are respectively arranged on the third fixing bumps. A second motor connected to the third rotating shaft and the fourth rotating shaft is arranged on the third layer plate. A third pulling rope and a fourth pulling rope are wound on the third rotating shaft and the fourth rotating shaft correspondingly. The third pulling rope and the fourth pulling rope penetrate through the fourth layer plate and the top wall of the second box body and are connected to a second scraping plate. The second scraping plate is arranged in a manner of fitting the outer side of the bottom wall of the second box body.
2. The operation state monitoring and analysis device for a trailing suction hopper dredger according to claim 1, characterized in that: Both the first scraping plate and the second scraping plate are structures with fixing rods embedded at both ends, a smooth bottom surface and an arc-shaped top surface. The two fixing rods of the first scraping plate are respectively connected to the first pulling rope and the second pulling rope, and the two ends of the two fixing rods of the second scraping plate are respectively connected to the third pulling rope and the fourth pulling rope.
3. The operation state monitoring and analysis device for a trailing suction hopper dredger according to claim 2, wherein: Two groups of limiting convex rings are respectively arranged at both ends of the fixing rod. One group of limiting convex rings includes two adjacent limiting convex rings.
4. The operation state monitoring and analysis device for a trailing suction hopper dredger according to claim 1, wherein: A first sealing ring is arranged at the bottom end of the first box body. A first mounting hole is opened on the first sealing ring. The first box body is screwed to the pipe through a bolt inserted into the first mounting hole; a second sealing ring is arranged at the top end of the second box body. A second mounting hole is opened on the second sealing ring. The second box body is screwed to the pipe through a bolt inserted into the second mounting hole.
5. The operation status monitoring and analysis device for a trailing suction hopper dredger according to claim 4, characterized in that: At the connection positions between the pipeline and the bottom end of the first box body and the top end of the second box body, four engaging convex blocks are respectively provided. The four engaging convex blocks respectively cover the two ends of the bottom of the first box body and the two ends of the top of the second box body. Threading holes are formed in all the four engaging convex blocks, and the first pulling rope, the second pulling rope, the third pulling rope and the fourth pulling rope respectively penetrate through the threading holes correspondingly.
6. The operation status monitoring and analysis device for a trailing suction hopper dredger according to claim 5, characterized in that: Rollers are respectively and engagingly provided at the connection positions between the two ends of the bottom of the first box body and the two ends of the top of the second box body and the engaging convex blocks. The first pulling rope, the second pulling rope, the third pulling rope and the fourth pulling rope are correspondingly wound around the four rollers.
7. An operating state monitoring and analysis device for a trailing suction hopper dredger according to claim 1, characterized in that: A plurality of fastening through holes are arrayed on the flange ring, and a sealing washer is arranged inside the flange ring.