An anti-silt seawater system model simulation device and method

Abstract

The application discloses an anti-silt seawater system model simulation device, which comprises a rack, a through-flow pipe with a closed loop structure is rotationally connected to the top of the rack and the rotation axis is horizontally arranged, a circulating water pump and a flow valve are connected in series on the through-flow pipe, and a silt exchanger for providing different silt types and different silt contents into the through-flow pipe is arranged between the through-flow pipe and the rack. In the application, the silt exchanger, the closed loop through-flow pipe, the circulating water pump and the flow valve are arranged, the closed loop through-flow pipe is rotationally arranged and a shaking plate and a test table are arranged in the through-flow pipe, so that the impact force of real seawater containing silt can be easily obtained. A kind of anti-silt seawater system model simulation method, seawater containing different specifications of silt is respectively used to impact the test table with a certain flow, and the silt in the seawater is ensured to be in a uniform distribution state when impacting, the precision of the impact force of seawater containing silt measured by the method is high, and is closer to the real seawater environment.

Description

Technical Field

[0001] This invention relates to a simulation device and method for a seawater system model that resists sedimentation, belonging to the field of simulation technology for the environmental impact of seawater sedimentation. Background Technology

[0002] Shallow or very shallow waters are subject to rapid changes in flow speed due to tidal characteristics and wind force. When ships operate in such waters, their exposed equipment and pipelines are easily impacted by seawater. Furthermore, shallow or very shallow waters contain a large amount of sand and gravel. When the seawater flows, the sand and gravel will be stirred up and carried by the seawater, which will then impact the exposed equipment on the ship and easily damage it.

[0003] Due to the irregular water movement in shallow or very shallow waters, it is difficult to accurately measure the impact force of seawater containing sand and gravel of different sizes. In practical work, it is usually difficult to simulate a completely realistic sediment environment to provide a reference for the design of exposed equipment on ships. To address these issues, it is necessary to design a system that can simulate seawater containing different sediment types to measure the impact force of seawater with varying sediment sizes, and also to measure the changes in the impact force of seawater as the sediment content changes. Summary of the Invention

[0004] The technical problem this invention aims to solve is that, due to the irregular movement of water in shallow or very shallow waters, it is difficult to measure the impact force of seawater containing sand and gravel of different sizes more accurately. In actual work, it is usually difficult to simulate a completely realistic mud and sand environment to provide a reference for the design of exposed equipment on ships.

[0005] To address the aforementioned technical problems, one technical solution of the present invention is to provide a simulation device for a sediment-resistant seawater system model. The device comprises a frame, with a closed-loop flow pipe rotatably connected to the top of the frame. The axis of rotation of the flow pipe is horizontal, and seawater containing sediment flows through the flow pipe. A circulating water pump and a flow valve are connected in series on the flow pipe. A sediment exchanger for supplying different sediment types and contents to the flow pipe is provided between the flow pipe and the frame. A test platform with a built-in pressure sensor is placed inside the flow pipe. Test plates opposite to the test ends of the pressure sensor are movably connected to both ends of the test platform. When the seawater flows through the flow pipe, it applies pressure to the test plates, and the pressure sensor measures the pressure. A flexure plate is fixedly installed on the inner circumferential wall of the flow pipe, away from both ends of the test platform. A drive mechanism for controlling the reciprocating oscillation of the flow pipe is provided on the frame. When the flow pipe oscillates, the flexure plates agitate the seawater within the flow pipe.

[0006] As a further description of the above technical solution:

[0007] The flow passage is composed of a portal-shaped tube and a connecting tube connecting both ends of the portal-shaped tube; the portal-shaped tube includes two parallel tubes and a horizontal tube connected to the two parallel tubes at both ends; a coaxial bearing shaft is fixedly connected to the outer wall of the two parallel tubes, and the bearing shaft is rotatably connected to the platform; the test platform is located inside the horizontal tube, and the circulating water pump and flow valve are respectively located inside the two parallel tubes; the connecting tube and the platform are connected to the sediment exchanger.

[0008] As a further description of the above technical solution:

[0009] The sediment exchanger includes an adapter cylinder, a control valve, and a sediment tank. The adapter cylinder is sleeved on a connecting pipe and is rotatably connected. The inner cavities of the adapter cylinder and the connecting pipe are connected, and the outer peripheral wall is fixedly connected with circumferentially evenly distributed guide pipes. The end of the guide pipe is connected to the sediment tank. The control valve is connected in series with the guide pipe. The sediment exchanger also includes a control assembly for controlling the rotation of the adapter cylinder relative to the connecting pipe.

[0010] As a further description of the above technical solution:

[0011] The connecting pipe is V-shaped, and the small end of the connecting pipe faces away from the horizontal pipe; the small end of the connecting pipe is fixedly connected to a short connecting pipe sleeved on the outside of the adapter cylinder and is rotatably sealed; the outer peripheral wall of the short connecting pipe has circumferentially evenly distributed flow holes located inside the adapter cylinder.

[0012] As a further description of the above technical solution:

[0013] The control assembly includes a control motor, a drive gear, and a driven gear. The driven gear is fixedly sleeved on the adapter cylinder. A support plate is fixedly installed on the frame. The control motor is fixedly installed on one side of the support plate, and its output shaft is fixedly connected to the drive gear. The drive gear and the bearing shaft are coaxial and mesh with the driven gear.

[0014] As a further description of the above technical solution:

[0015] The sediment exchanger also includes a sand gate, which is connected in series on the flow pipe and located between the control valve and the sediment tank. The sand gate is used to control the amount of sediment entering the flow pipe.

[0016] As a further description of the above technical solution:

[0017] The sand gate includes a housing, a rotating shaft, and an adjusting motor; the rotating shaft and the housing are rotatably connected, and an arc cavity is provided inside the housing; the outer peripheral wall of the rotating shaft is fixedly connected with partitions that are evenly distributed circumferentially and located inside the arc cavity; the adjusting motor is fixedly disposed on one side of the housing, and the output shaft of the adjusting motor is fixedly connected to one end of the rotating shaft.

[0018] As a further description of the above technical solution:

[0019] Two support plates are fixedly mounted on the platform. The tops of the two support plates are rotatably connected to two support shafts, and one end of one of the support shafts is fixedly connected to a swing arm. The driving mechanism includes a drive motor and a deflector shaft. The drive motor is fixedly mounted on one side of one of the support plates, and the output shaft of the drive motor is fixedly connected to a cantilever. The deflector shaft rotates and slides with the swing arm, and one end of the deflector shaft is fixedly connected to the free end of the cantilever.

[0020] Another technical solution of the present invention is to provide a simulation method for a sediment-resistant seawater system model, based on the above-mentioned sediment-resistant seawater system model simulation device, characterized by comprising the following steps:

[0021] Step 1: Prepare seawater containing various sizes of sediment, select one type of seawater to enter the flow pipe, and then control the seawater to circulate in the flow pipe at a certain flow rate.

[0022] Step 2: Adjust the sediment content in the seawater within the current flow pipe;

[0023] Step 3: Adjust the uniformity of sediment distribution in the seawater within the current flow pipe;

[0024] Step 4: Start the recording device. The pressure sensor will display the magnitude of the impact force generated by the current seawater containing sediment on the pressure recording display.

[0025] Step 5: Adjust the current seawater flow rate and sediment content respectively. The display will linearly show the seawater impact force corresponding to the adjustment change, thereby simulating the impact force of seawater containing sediment.

[0026] As a further description of the above technical solution:

[0027] In step four, the seawater in the flow pipe is controlled to flow in the opposite direction, and then the magnitude of the impact force of the seawater is recorded and compared with the magnitude of the forward and reverse flow.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] 1. In this invention, by setting up a sediment exchanger, a closed-loop flow pipe, a circulating water pump, and a flow valve, wherein the closed-loop flow pipe is rotatable and has a flexure plate and a test platform inside, this setup can simulate stable seawater flow and make the sediment content in the seawater evenly distributed, which is convenient for measuring the impact force of seawater containing sediment of different specifications. Furthermore, by combining the area of ​​the test plate on the test platform, the pressure of the current seawater containing sediment can be measured, providing a strength design reference for equipment, pipes, etc. exposed on ships that come into contact with seawater.

[0030] 2. In this invention, by setting up a sand gate and then cooperating with the control valve set on the sediment exchanger, the content of sand and gravel in the seawater flowing in the flow pipe can be easily adjusted. It has the function of simulating the environment of seawater in different sea areas, thereby improving the applicability of this simulation device and the accuracy of the test.

[0031] 3. In this invention, seawater containing different grades of sediment is impacted onto the test platform at a certain flow rate, and the sediment in the seawater is ensured to be uniformly distributed during the impact. The impact force of seawater containing sediment measured by this method is highly accurate and more closely resembles the real seawater environment. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of a model simulation device for an anti-sediment seawater system proposed in this invention;

[0033] Figure 2 for Figure 1 The main view;

[0034] Figure 3 This is a schematic diagram of the structure of the sediment exchanger and connecting pipe of the anti-sediment seawater system model simulation device proposed in this invention after separation;

[0035] Figure 4 This is a cross-sectional plan view of the test bench of the anti-sediment seawater system model simulation device proposed in this invention;

[0036] Figure 5 This is a schematic diagram of the sand gate of a model simulation device for an anti-sediment seawater system proposed in this invention;

[0037] Figure 6 This is a cross-sectional structural diagram of the shell of the sand gate of the anti-sediment seawater system model simulation device proposed in this invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Frame; 11. Support plate; 12. Bearing plate; 2. Flow pipe; 21. Portal pipe; 211. Parallel pipe; 2111. Bearing shaft; 21111. Swing arm; 212. Horizontal pipe; 22. Connecting pipe; 221. Short pipe; 2211. Flow hole; 3. Circulating water pump; 4. Flow valve; 5. Sediment exchanger; 51. Adapter cylinder; 511. Guide pipe; 52. Control valve; 53. Sediment tank; 54. Control assembly; 541, Control motor; 542, Drive gear; 543, Driven gear; 55, Sand gate; 551, Housing; 552, Rotating shaft; 5521, Partition plate; 553, Adjusting motor; 6, Pressure sensor; 7, Test bench; 8, Test plate; 9, Flexural plate; 101, Drive mechanism; 101, Drive mechanism; 1011, Drive motor; 10111, Cantilever; 1012, Actuating shaft. Detailed Implementation

[0040] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0041] Please see Figure 1-6 This invention discloses a simulation device for a sediment-resistant seawater system model. This simulation device is used to simulate the impact force of seawater containing sediment, and its purpose is to provide strength design reference for exposed equipment and pipelines on ships.

[0042] Specifically, the simulation device disclosed in this embodiment of the invention includes a platform 1, which supports the entire simulation device. A flow pipe 2 is rotatably connected to the top of the platform 1, with its axis of rotation horizontal. In use, seawater containing sediment flows through the flow pipe 2. A circulating water pump 3 and a flow valve 4 are connected in series on the flow pipe 2. The circulating water pump 3 is a bidirectional pump, which provides driving force for the flow of seawater and also controls the flow rate. The flow valve 4 monitors the flow rate of seawater within the flow pipe 2.

[0043] A sediment exchanger 5 is installed between the aforementioned flow pipe 2 and the test stand 1 to supply different types and contents of sediment into the flow pipe 2. In other words, the flow pipe 2 can be used to flow seawater containing one type of sediment. When it is necessary to switch to seawater containing different types of sediment, the sediment exchanger 5 needs to be operated. This can be achieved by cooperating with the rotation setting function of the flow pipe 2. This setting facilitates the simulation of the impact force of seawater containing a single type of sediment.

[0044] A test platform 7 with a built-in pressure sensor 6 is placed inside the flow tube 2. The outer wall of the test platform 7 is fixedly connected to the inner wall of the flow tube 2 by a connecting rod. The two ends of the test platform 7 are movably connected to test plates 8 opposite to the test ends of the pressure sensor 6. That is to say, when the seawater flows, it will apply pressure to the test plates 8. The pressure sensor 6 will measure the pressure (the seawater corresponding to the current specification of sediment) and then transmit the obtained pressure data to an external display device through a data cable.

[0045] In a preferred embodiment, the flow passage 2 is composed of a portal-shaped pipe 21 and a connecting pipe 22 connecting both ends of the portal-shaped pipe 21. The portal-shaped pipe 21 includes two parallel pipes 211 and a horizontal pipe 212. Coaxial bearing shafts 2111 are fixedly connected to the outer walls of the two parallel pipes 211 of the portal-shaped pipe 21, and these bearing shafts 2111 are rotatably connected to the test bench 1. The test bench 7 is located inside the horizontal pipe 212 of the portal-shaped pipe 21. The circulating water pump 3 and the flow valve 4 are respectively located inside the two parallel pipes 211 of the portal-shaped pipe 21. The connecting pipe 22 and the test bench 1 are connected to the sediment exchanger 5, meaning that the horizontal pipe 212 serves as the simulation test area. After the circulating water pump 3 is started, the seawater flow inside the horizontal pipe 212 will be in a stable flow state.

[0046] In a preferred embodiment, the sediment exchanger 5 includes an adapter cylinder 51, a control valve 52, and a sediment tank 53. The sediment tank 53 is filled with sediment. The adapter cylinder 51 is fitted onto the connecting pipe 22 and is rotatably connected. The inner cavities of the adapter cylinder 51 and the connecting pipe 22 are connected, and the outer circumferentially uniformly distributed guide pipes 511 are fixedly connected to its outer circumferential wall. Specifically, an annular cavity is formed inside the adapter cylinder 51. The adapter cylinder 51 and the connecting pipe 22 are rotatably sealed at a short connecting pipe 221. The outer circumferential wall of the short connecting pipe 221 has circumferentially uniformly distributed flow holes 2211 located within the adapter cylinder 51. One end of the guide pipe 511 is connected to the sediment tank 53, and the other end is connected to the adapter cylinder 51. One guide pipe 511 corresponds to one sediment tank 53, and different sediment tanks 53 are filled with sediment of different specifications. A control valve 52 is connected in series with the guide pipe 511. When the control valve 52 is open, the corresponding sediment tank 53 will connect with the transfer cylinder 51; conversely, it will block the connection. The sediment exchanger 5 also includes a control assembly 54 for controlling the rotation of the transfer cylinder 51 relative to the connecting pipe 22. When the transfer cylinder 51 rotates, it can control one of the sediment tanks 53 to be in the lowest position. When the connecting pipe 22 is in the lowest position, the sediment tank 53 in the lowest position can collect sediment from the seawater. During collection, the flow rate of the seawater in the flow pipe 2 is reduced, and the flow pipe 2 swings slightly. The sediment in the seawater will settle into the sediment tank 53 in the lowest position. After collection is complete, the corresponding control valve 52 is closed. Then, the sediment tank 53 to be replaced is controlled to be in the highest position, and the control valve 52 corresponding to the highest-position sediment tank 53 is opened, so that the sediment to be replaced can be introduced into the flow pipe 2, thereby realizing the switching of different specifications of sediment used in the simulation.

[0047] In a preferred embodiment, the connecting pipe 22 is V-shaped with its small end facing away from the horizontal pipe 212. The small end of the connecting pipe 22 is fixedly connected to a short pipe 221 that is sleeved on the outside of the adapter cylinder 51 and is rotatably sealed. The V-shaped design of the connecting pipe 22 can greatly reduce the amount of residual mud and sand in the flow pipe 2 when the mud and sand are replaced.

[0048] A preferred embodiment is that the aforementioned control assembly 54 specifically includes a control motor 541, a drive gear 542, and a driven gear 543. The driven gear 543 is fixedly sleeved on the adapter cylinder 51, and a support plate 11 is fixedly installed on the frame 1. The control motor 541 is fixedly installed on one side of the support plate 11, and its output shaft is fixedly connected to the drive gear 542. The drive gear 542 is coaxial with the bearing shaft 2111 and meshes with the driven gear 543.

[0049] The inner circumferential wall of the flow pipe 2 is fixedly provided with a flexure plate 9 away from both ends of the test platform 7. Specifically, the flexure plate 9 is located inside the horizontal pipe 212. When the flow pipe 2 swings, the flexure plate 9 will stir the water, which can effectively prevent the sediment in the seawater passing through the test plate 8 from settling, improve the uniformity of sediment distribution near the test plate 8, and thus improve the accuracy of the simulation.

[0050] A drive mechanism 101 for controlling the reciprocating swing of the flow tube 2 is provided on the test stand 1. Specifically, two support plates 12 are fixedly mounted on the test stand 1, and the tops of the two support plates 12 are rotatably connected to two support shafts 2111 respectively. One end of one of the support shafts 2111 is fixedly connected to a swing arm 21111. The drive mechanism 101 includes a drive motor 1011 and a deflecting shaft 1012. The drive motor 1011 is fixedly mounted on one side of one of the support plates 12, and its output shaft is fixedly connected to a cantilever 10111. The deflecting shaft 1012 is rotatably and slidably engaged with the swing arm 21111, and one end of the deflecting shaft 1012 is fixedly connected to the free end of the cantilever 10111. Specifically, a waist-shaped sliding hole can be opened on the swing arm 21111, and a rotating block can be fitted on the deflecting shaft 1012. The rotating block is slidably engaged with the waist-shaped sliding hole. When the drive motor 1011 rotates, it will drive the swing arm 21111 to swing back and forth, and the flow tube 2 will change in the horizontal and inclined directions.

[0051] In this embodiment, the sediment exchanger 5 also includes a sediment gater 55, which is connected in series on the guide pipe 511 and located between the control valve 52 and the sediment tank 53. The sediment gater 55 is used to control the amount of sediment entering the flow pipe 2. In other words, the sediment gater 55 can adjust the current sediment content in the flow pipe 2, so as to obtain the change of impact force when the current sediment content in the seawater changes in real time.

[0052] In a preferred embodiment, the sand gate 55 includes a housing 551, a rotating shaft 552, and an adjusting motor 553. The housing 551 and the guide pipe 511 are connected in series, and the rotating shaft 552 is rotatably connected to the housing 551. An arc-shaped cavity is provided inside the housing 551. Uniformly distributed partitions 5521 located within the arc-shaped cavity are fixedly connected to the outer peripheral wall of the rotating shaft 552. Adjacent partitions 5521 and the arc-shaped cavity wall form a closed transmission space, and the uniformly distributed partitions 5521 prevent direct connection between the guide pipes 511 at both ends of the housing 551. When the transmission space and the guide pipe 511 are connected, the sand and gravel in the transmission space will fall into the guide pipe 511 and eventually enter the flow pipe 2. By controlling the number of rotations of the rotating shaft 552, the amount of sand and gravel entering the flow pipe 2 can be adjusted. The adjusting motor 553 is fixedly mounted on one side of the housing 551, and its output shaft is fixedly connected to one end of the rotating shaft 552.

[0053] This invention also discloses a simulation method for a sediment-resistant seawater system model, based on the aforementioned simulation device, comprising the following steps:

[0054] Step 1: Prepare seawater containing various sizes of sediment. Select one type of seawater and let it enter the flow pipe 2. Then control the seawater to circulate in the flow pipe 2 at a certain flow rate. The purpose is to simulate the flow state of seawater containing sediment.

[0055] Step 2: Adjust the sediment content in the seawater in the current flow pipe 2. The sediment content varies in different sea areas. The sediment environment of seawater in different sea areas is simulated by adjusting the sediment content per unit cubic meter.

[0056] Step 3: Adjust the uniformity of sediment distribution in the seawater within the current flow pipe 2. Since the sediment in a certain laminar flow is uniform within a certain range during the actual seawater flow, improving the uniformity of sediment distribution within the flow pipe 2 can improve the accuracy of the simulation.

[0057] Step 4: Start the recording device. Pressure sensor 6 displays the magnitude of the impact force generated by the seawater containing sediment on the pressure recording display. When the seawater in the flow tube 2 is controlled to flow in the opposite direction, the pressure recording display records the magnitude of the impact force when the seawater flows in the opposite direction and compares the magnitude of the forward and reverse flow. This method is used to improve the accuracy of the test.

[0058] Step 5: Adjust the current seawater flow rate and sediment content respectively. The display will linearly show the seawater impact force corresponding to the adjustment change, thereby simulating the impact force of seawater containing sediment.

[0059] The working principle of this simulation device:

[0060] I. Preparation before use: First, connect the pressure sensor 6 to the display screen on the external pressure display device via a data cable. The display screen contains indicator scales that indicate the magnitude of seawater impact pressure, sediment content, and seawater flow rate. Then, inject sediment of different specifications into each sediment tank 53 and connect the sediment tank 53 to the guide pipe 511. Finally, fill the flow pipe 2 with seawater. At this point, the preparation work is complete.

[0061] II. Simulation: Start the drive motor 1011, the cantilever 10111 swings, the actuating shaft 1012 drives the swing arm 21111 to swing until the flow pipe 2 is in a horizontal state. Then start the circulating water pump 3. After the circulating water pump 3 starts, the seawater in the flow pipe 2 is in a state of flow at a certain flow rate. At this time, the test plate 8 at one end of the test platform 7 can withstand the pressure of pure seawater. At this time, the pressure sensor 6 can measure the pressure of the pure seawater at the current flow rate and then display it on the pressure display screen. Start the control motor 541. Under the meshing of the active gear 542 and the passive gear 543, the adapter cylinder 51 rotates, so that one of the sediment tanks 53 is in the highest position. Then, control the control valve 52 corresponding to the sediment tank 53 in the highest position to open. Then, control the regulating motor 553 to start. Rotate the motor 552. The adjacent baffle 5521 will guide the sediment into the connecting pipe 22. At this time, the flow pipe 2 will contain sediment. Then, control the flow pipe 2 to swing slightly. Under the push of the flexing plate 9, the sediment in the seawater is in a uniform distribution state. At this time, the test plate 8 can measure the impact force of the seawater with the current sediment volume.

[0062] In summary, this method can be used to obtain the magnitude of the impact force generated by seawater containing sediment of different sizes, as well as the magnitude of the impact force generated by seawater containing sediment of the same size when the sediment content changes.

[0063] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A simulation device for a sediment-resistant seawater system, characterized in that, The test includes a test stand (1), the top of which is rotatably connected to a closed-loop flow pipe (2), the axis of rotation of which is horizontal, and seawater containing silt flows through which the flow pipe (2); a circulating water pump (3) and a flow valve (4) are connected in series on the flow pipe (2); a silt exchanger (5) is provided between the flow pipe (2) and the test stand (1) for supplying different types and contents of silt to the flow pipe (2); and a test bench (7) containing a built-in pressure sensor (6) is placed inside the flow pipe (2). The test platform (7) is movably connected to two test plates (8) opposite to the test ends of the pressure sensor (6). When the seawater in the flow pipe (2) flows, it applies pressure to the test plates (8), and the pressure sensor (6) measures the pressure. The inner circumferential wall of the flow pipe (2) is fixedly provided with flexure plates (9) away from both ends of the test platform (7). The frame (1) is provided with a drive mechanism (101) for controlling the reciprocating swing of the flow pipe (2). When the flow pipe (2) swings, the seawater in the flow pipe (2) is agitated by the flexure plates (9).

2. The anti-sediment seawater system model simulation device according to claim 1, characterized in that, The flow passage (2) is composed of a portal tube (21) and a connecting tube (22) connecting the two ends of the portal tube (21); the portal tube (21) includes two parallel tubes (211) and a horizontal tube (212) connected to the two parallel tubes (211) at both ends; a coaxial bearing shaft (2111) is fixedly connected to the outer wall of the two parallel tubes (211), and the bearing shaft (2111) and the platform (1) are rotatably connected; the test bench (7) is located inside the horizontal tube (212), and the circulating water pump (3) and the flow valve (4) are respectively located inside the two parallel tubes (211); the connecting tube (22) and the platform (1) are connected to the sediment exchanger (5).

3. The anti-sediment seawater system model simulation device according to claim 2, characterized in that, The sediment exchanger (5) includes a transfer cylinder (51), a control valve (52), and a sediment tank (53); the transfer cylinder (51) is sleeved on the connecting pipe (22) and is rotatably connected; the inner cavity of the transfer cylinder (51) and the connecting pipe (22) are connected; and the outer peripheral wall of the transfer cylinder (51) is fixedly connected with a circumferentially evenly distributed guide pipe (511); the end of the guide pipe (511) is connected to the sediment tank (53); the control valve (52) is connected in series on the guide pipe (511); the sediment exchanger (5) also includes a control assembly (54) for controlling the rotation of the transfer cylinder (51) relative to the connecting pipe (22).

4. The anti-sediment seawater system model simulation device according to claim 3, characterized in that, The connecting pipe (22) is V-shaped, and the small end of the connecting pipe (22) faces away from the horizontal pipe (212); the small end of the connecting pipe (22) is fixedly connected to a short pipe (221) sleeved on the outside of the adapter cylinder (51) and is rotatably sealed; the outer peripheral wall of the short pipe (221) is provided with circumferentially evenly distributed flow holes (2211) located in the adapter cylinder (51).

5. The anti-sediment seawater system model simulation device according to claim 3, characterized in that, The control assembly (54) includes a control motor (541), a drive gear (542), and a driven gear (543). The driven gear (543) is fixedly sleeved on the adapter cylinder (51). A support plate (11) is fixedly installed on the frame (1). The control motor (541) is fixedly installed on one side of the support plate (11), and its output shaft is fixedly connected to the drive gear (542). The drive gear (542) and the bearing shaft (2111) are coaxial and mesh with the driven gear (543).

6. The anti-sediment seawater system model simulation device according to claim 3, characterized in that, The sediment exchanger (5) also includes a sand gate (55), which is connected in series on the guide pipe (511) and located between the control valve (52) and the sediment tank (53). The sand gate (55) is used to control the amount of sediment entering the flow pipe (2).

7. The anti-sediment seawater system model simulation device according to claim 6, characterized in that, The sand gate (55) includes a housing (551), a rotating shaft (552), and an adjusting motor (553); the rotating shaft (552) and the housing (551) are rotatably connected, and an arc cavity is provided inside the housing (551); the outer peripheral wall of the rotating shaft (552) is fixedly connected with partitions (5521) that are evenly distributed in the circumference and located in the arc cavity; the adjusting motor (553) is fixedly disposed on one side of the housing (551), and the output shaft of the adjusting motor (553) is fixedly connected to one end of the rotating shaft (552).

8. The anti-sediment seawater system model simulation device according to claim 2, characterized in that, Two support plates (12) are fixedly installed on the frame (1). The tops of the two support plates (12) are rotatably connected to the two support shafts (2111) respectively. One end of one of the support shafts (2111) is fixedly connected to a swing arm (21111). The drive mechanism (101) includes a drive motor (1011) and a toggle shaft (1012). The drive motor (1011) is fixedly installed on one side of one of the support plates (12). The output shaft of the drive motor (1011) is fixedly connected to a cantilever (10111). The toggle shaft (1012) rotates and slides with the swing arm (21111), and one end of the toggle shaft (1012) is fixedly connected to the free end of the cantilever (10111).

9. A simulation method for a sediment-resistant seawater system, based on the sediment-resistant seawater system simulation device described in claim 1, characterized in that, Includes the following steps: Step 1: Prepare seawater containing various sizes of sediment, select one type of seawater to enter the flow pipe (2), and then control the seawater to circulate in the flow pipe (2) at a certain flow rate; Step 2: Adjust the sediment content in the seawater within the current flow pipe (2); Step 3: Adjust the uniformity of sediment distribution in the seawater within the current flow pipe (2); Step 4: Start the recording device. The pressure sensor (6) displays the magnitude of the impact force generated by the current seawater containing silt on the pressure recording display. Step 5: Adjust the current seawater flow rate and sediment content respectively. The display will linearly show the seawater impact force corresponding to the adjustment change, thereby simulating the impact force of seawater containing sediment.

10. The simulation method for a sediment-resistant seawater system according to claim 9, characterized in that, In step four, the seawater in the flow pipe (2) is controlled to flow in the opposite direction, and then the magnitude of the impact force of the seawater is recorded and the magnitude of the forward and reverse flow of the seawater is compared.

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