Experimental device for deep-sea riser-bottom cabin coupling system

Abstract

The invention relates to the technical field of deep-sea mining equipment, in particular to an experimental device for a deep-sea riser-bottom cabin coupling system. Comprising a mining ship motion simulation device, a suspension device model, a spherical hinge, an energy storage buffer damping device, a hard tube model, a middle cabin model, a supporting leg model, a hose model, a buoyancy ball model, a mining vehicle motion simulation device, a mining area seabed simulation device, an experimental pool and an underwater observation device. The suspension device model comprises a cylinder barrel and a piston; the energy storage buffer damping device comprises a pipeline, a throttle valve and an energy accumulator; the mining vehicle motion simulation device comprises a crawler trolley, a measurement and control cable, a trolley measurement and control terminal and a distance measuring sensor; the mining area seabed simulation device is used for simulating complex submarine topography of a deep sea polymetallic sulfide mining area. According to the experimental device for the deep-sea riser-bottom-sitting cabin coupling system, provided by the invention, the experimental device can truly reflect mechanical characteristics among all components of a middle cabin bottom-sitting deep-sea mining system.

Description

Technical Field

[0001] The invention relates to the technical field of deep-sea mining equipment, and in particular to a deep-sea riser-bottom tank coupling system experimental device. Background Art

[0002] The intermediate cabin bottom-seated deep-sea mining system is a deep-sea mining system with an intermediate cabin placed on the seabed. Compared with the conventional ore-lifting riser system, the tension and dynamic load of the ore-lifting riser system are small, and the mining vehicle runs smoothly. It has a good application prospect in the mining of large three-dimensional deposits such as deep-sea polymetallic sulfides. In this system, the mining ship, suspension device, hard pipe, intermediate cabin, seabed, hose and mining vehicle are coupled with each other, and it is difficult to solve the mechanical characteristics under the marine environment load, and experimental means are needed to simulate or verify the simulation results.

[0003] To this end, a deep-sea riser-bottom tank coupling system experimental device is designed to provide a technical solution to the above technical problems. Summary of the invention

[0004] Based on this, it is necessary to provide a deep-sea riser-bottom tank coupling system experimental device to solve the technical problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A deep-sea riser-bottom cabin coupling system experimental device, comprising a mining ship motion simulation device, a suspension device model, a ball joint, an energy storage buffer damping device, a hard pipe model, an intermediate cabin model, a leg model, a hose model, a buoyancy ball model, a mining vehicle motion simulation device, a mining area seabed simulation device, an experimental water pool and an underwater observation device;

[0007] Underwater observation devices are fixed at both ends of the experimental water pool, and the two underwater observation devices have different heights and viewing angles, and are used to observe the states of the intermediate cabin model and the hose model through the underwater observation devices. The mining area seabed simulation device is located at the bottom of the experimental water pool, the intermediate cabin model sits on the mining area seabed simulation device, the leg models are symmetrically distributed on the outside of the intermediate cabin model, one end of the hose model is connected to the top of one end of the intermediate cabin model, the buoyancy ball model is located on the outside of the hose model, the mining vehicle motion simulation device is located at the end of the hose model away from the intermediate cabin model, the hard pipe model is located at the top of the intermediate cabin model, the ball joint is located at the top of the hard pipe model, the suspension device model is located at the top of the ball joint, the mining ship motion simulation device is located at the top of the suspension device model, and the energy storage buffer damping device is connected to one end of the suspension device model.

[0008] As a preferred implementation of the deep-sea riser-bottom tank coupling system experimental device provided by the present invention, the underwater observation device is an underwater camera.

[0009] As a preferred embodiment of the deep-sea riser-bottom tank coupling system experimental device provided by the present invention, the buoyancy ball model is a low-density resin sphere with a circular hole in the middle, which is strung on the hose model through the circular hole in the middle, and the arrangement quantity and position on the hose model are adjustable.

[0010] As a preferred embodiment of the deep-sea riser-bottom tank coupling system experimental device provided by the present invention, the suspension device model includes a cylinder and a piston, the cylinder is a cylindrical structure with a cavity, the top of the cylinder is fixed to the mining ship motion simulation device, the inside of the cylinder is provided with a piston, and the bottom of the piston is connected to the energy storage buffer damping device.

[0011] As a preferred embodiment of the deep-sea riser-bottom tank coupling system experimental device provided by the present invention, the piston divides the internal cavity of the cylinder into an upper chamber and a lower chamber, wherein the upper chamber is a low-pressure chamber communicating with the outside, and the lower chamber is a high-pressure chamber filled with high-pressure gas.

[0012] As a preferred implementation of the deep-sea riser-bottom tank coupling system experimental device provided by the present invention, the energy storage buffer damping device includes a pipeline, a throttle valve and an accumulator, the accumulator is connected to the bottom of the cylinder through a pipeline, and the throttle valve is connected in series to the pipeline.

[0013] As a preferred embodiment of the deep-sea riser-bottom tank coupling system experimental device provided by the present invention, the intermediate tank model includes a frame, a silo, an intermediate tank measurement and control terminal, a dynamometer at a hard pipe connection, a dynamometer at a hose connection, a dynamometer at a leg connection, an inclination measuring device, a silo gravity sensor and an underwater communication cable. A silo is provided at the bottom end of the frame for filling simulated mineral materials. The gravity sensor is fixed between the bottom of the silo and the frame for measuring the underwater weight of the mineral materials in the silo. A dynamometer at a hard pipe connection is fixed at the top of the frame and at a position corresponding to the hard pipe model. A dynamometer at a hose connection is fixed at one end of the frame and at a position corresponding to the hose model. A dynamometer at a leg connection is fixed at the bottom of both ends of the frame and at a position corresponding to the leg model. An inclination measuring device is fixed at one end of the top of the frame. The top of the frame is also connected to an underwater communication cable. A measurement and control terminal is fixed at one end of the underwater communication cable for remotely adjusting the extension angle of the leg model through the measurement and control terminal.

[0014] As a preferred implementation mode of the deep-sea riser-bottom tank coupling system experimental device provided by the present invention, the mining vehicle motion simulation device comprises a tracked trolley, a measurement and control cable, a trolley measurement and control terminal and a distance measuring sensor. The tracked trolley is fixed to the hose model, a distance measuring sensor is fixed to the top of the tracked trolley, a measurement and control cable is also connected to the top of the tracked trolley, and the top of the measurement and control cable is connected to the trolley measurement and control terminal.

[0015] As a preferred embodiment of the deep-sea riser-bottom tank coupling system experimental device provided by the present invention, the mining area seabed simulation device is used to simulate the complex seabed topography of the deep-sea polymetallic sulfide mining area. The mining area seabed simulation device consists of a concrete structure, a hinge and an oil cylinder. The concrete structure is used to simulate the seabed topography. One end of the bottom of the concrete structure is connected to the experimental water pool by a hinge, and the other end of the bottom of the concrete structure is connected to the experimental water pool by an oil cylinder, which is used to adjust the inclination angle of the concrete structure through the operation of the oil cylinder.

[0016] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0017] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects:

[0018] The deep-sea riser-bottom-sit tank coupling system experimental device provided by the present invention can enable the experimental device to more realistically reflect the mechanical characteristics between the various components of the intermediate tank bottom-sit deep-sea mining system, and then the mechanical characteristics of the actual system can be inferred by measuring the mechanical characteristics of the experimental system, and the result is more intuitive and reliable than the simulation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the experimental system of the present invention;

[0021] Figure 2 It is a schematic diagram of the components of the suspension device and the energy storage buffer damping device of the present invention;

[0022] Figure 3 It is a schematic diagram of the intermediate cabin model, the mining area seabed simulation device and the mining vehicle motion simulation device of the present invention.

[0023] In the figure: 1. Mining ship motion simulation device; 2. Suspension device model; 3. Ball joint; 4. Energy storage buffer damping device; 5. Hard pipe model; 6. Middle cabin model; 7. Outrigger model; 8. Hose model; 9. Buoyancy ball model; 10. Mining vehicle motion simulation device; 11. Mining area seabed simulation device; 12. Experimental pool; 13. Underwater observation device;

[0024] 2a, cylinder; 2b, piston;

[0025] 4a, pipeline; 4b, throttle valve; 4c, accumulator;

[0026] 6a, frame; 6b, silo; 6c, middle cabin measurement and control terminal; 6d, dynamometer at the hard pipe connection; 6e, dynamometer at the hose connection; 6f, dynamometer at the leg connection; 6g, inclination measuring device; 6h, silo gravity sensor; 6i, underwater communication cable;

[0027] 10a, crawler trolley; 10b, measurement and control cable; 10c, trolley measurement and control terminal; 10d, distance measurement sensor;

[0028] 11a. Concrete structure; 11b. Hinge; 11c. Oil cylinder. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] Reference Figure 1-Figure 3 , a deep-sea riser-bottom cabin coupling system experimental device, comprising a mining ship motion simulation device 1, a suspension device model 2, a ball joint 3, an energy storage buffer damping device 4, a hard pipe model 5, an intermediate cabin model 6, a leg model 7, a hose model 8, a buoyancy ball model 9, a mining vehicle motion simulation device 10, a mining area seabed simulation device 11, an experimental water pool 12 and an underwater observation device 13;

[0034] Underwater observation devices 13 are fixed at both ends of the experimental water pool 12. The underwater observation devices 13 are underwater cameras, and the two underwater observation devices 13 have different heights and viewing angles, which are used to observe the states of the intermediate cabin model 6 and the hose model 8 through the underwater observation devices 13, and then the situation inside the experimental water pool 12 can be observed. The mining area seabed simulation device 11 is located at the bottom of the experimental water pool 12, and the intermediate cabin model 6 sits on the mining area seabed simulation device 11. The outrigger models 7 are symmetrically distributed on the outside of the intermediate cabin model 6, and the bottom of the outrigger model 7 is in contact with the mining area seabed simulation device 11, which is used to make the intermediate cabin model 6 more stable. One end of the hose model 8 is connected to the top of one end of the intermediate cabin model 6. The buoyancy ball model 9 is located on the outside of the hose model 8, which is used to support the underwater weight of the hose model 8, so that the hose model 8 presents a specific arch configuration;

[0035] Preferably, the outrigger models 7 are symmetrically distributed on the outside of the frame 6a to adjust the balance of the middle cabin model.

[0036] Preferably, the buoyancy ball model 9 is a low-density resin ball with a round hole in the middle, and is strung on the hose model 8 through the round hole in the middle. The number and position of the buoyancy ball model 9 on the hose model 8 are adjustable.

[0037] The mining vehicle motion simulation device 10 is located at one end of the hose model 8 away from the middle cabin model 6, the hard pipe model 5 is located at the top of the middle cabin model 6, the ball joint 3 is located at the top of the hard pipe model 5, the suspension device model 2 is located at the top of the ball joint 3, the mining ship motion simulation device 1 is located at the top of the suspension device model 2, and the energy storage buffer damping device 4 is connected to one end of the suspension device model 2;

[0038] In this embodiment, the mining ship motion simulation device 1 is a six-degree-of-freedom motion simulation device, which can generate six-degree-of-freedom motion under the control of a computer.

[0039] refer to Figure 2 The suspension device model 2 includes a cylinder 2a and a piston 2b. The cylinder 2a is a cylindrical structure with a cavity. The top of the cylinder 2a is fixed to the mining ship motion simulation device 1. The piston 2b is arranged inside the bottom of the cylinder 2a. The cavity volume of the cylinder 2a is adjusted by the movement of the piston 2b. The piston 2b divides the internal cavity of the cylinder 2a into an upper chamber and a lower chamber, wherein the upper chamber is a low-pressure chamber communicating with the outside, and the lower chamber is a high-pressure chamber filled with high-pressure gas; the bottom of the piston 2b is connected to the energy storage buffer damping device 4;

[0040] The energy storage buffer damping device 4 includes a pipeline 4a, a throttle valve 4b and an accumulator 4c. The accumulator 4c is connected to the bottom of the cylinder 2a through the pipeline 4a, so that the lower chamber inside the cylinder 2a can be connected through the pipeline 4a. The throttle valve 4b is connected in series to the pipeline 4a, so that the flow inside the pipeline 4a is adjusted by the throttle valve 4b to adjust the damping of the gas flow. This system is used to simulate the tension and damping conditions of the upper part of the deep-sea mining system. The outer side of the accumulator 4c is provided with a charging and discharging port for adjusting the internal pressure;

[0041] refer to Figure 3 The intermediate cabin model 6 includes a frame 6a, a silo 6b, a dynamometer 6d at the hard pipe connection, a dynamometer 6e at the hose connection, a dynamometer 6f at the leg connection, an inclination measuring device 6g, a silo gravity sensor 6h, an underwater communication cable 6i and an intermediate cabin measurement and control terminal 6c;

[0042] A silo 6b is provided at the bottom of the frame 6a for filling simulated ore materials, and the amount of simulated ore materials can be adjusted as needed to simulate the weight change of the ore cached in the silo during the operation. A gravity sensor 6h is fixed between the bottom of the silo 6b and the frame 6a for measuring the underwater weight of the ore materials in the silo. A dynamometer 6d at the connection of the hard pipe is fixed at the top of the frame 6a and at a position corresponding to the hard pipe model 5, for detecting the force at the connection position between the frame 6a and the hard pipe model 5.

[0043] A hose connection dynamometer 6e is fixed at one end of the frame 6a and at a position corresponding to the hose model 8, and is used to detect the force at the connection position between the frame 6a and the hose model 8. A leg connection dynamometer 6f is fixed at the bottom of both ends of the frame 6a and at a position corresponding to the leg model 7, and is used to detect the force at the connection position between the frame 6a and the leg model 7. An inclination measuring device 6g is fixed at one end of the top of the frame 6a, and is used to detect the inclination angle of the frame 6a. An underwater communication cable 6i is also connected to the top of the frame 6a, and a measurement and control terminal 6c is fixed at one end of the underwater communication cable 6i. The measurement and control terminal 6c is located at the top of the experimental water pool 12, and is used to obtain measurement data through the measurement and control terminal 6c and remotely adjust the extension angle of the leg model 7;

[0044] Preferably, the dynamometer 6d at the hard pipe connection, the dynamometer 6e at the hose connection, the dynamometer 6f at the leg connection, the inclination measuring device 6g, and the silo gravity sensor 6h are all connected to the measurement and control terminal 6c via an underwater communication cable 6i.

[0045] The mining vehicle motion simulation device 10 comprises a crawler trolley 10a (simulating the motion of a mining vehicle), a measurement and control cable 10b, a trolley measurement and control terminal 10c and a distance sensor 10d. The crawler trolley 10a is fixed to the hose model 8, and a distance sensor 10d is fixed to the top of the crawler trolley 10a. The distance to the pool wall is detected by the distance sensor 10d to obtain the position of the crawler trolley 10a. The top of the crawler trolley 10a is also connected to a measurement and control cable 10b, and the top of the measurement and control cable 10b is connected to a trolley measurement and control terminal 10c, and the trolley measurement and control terminal 10c is located at the top of the experimental pool 12, so that the user can obtain the data of the distance sensor through the trolley measurement and control terminal 10c and control the movement of the crawler trolley 10a forward, backward, left and right.

[0046] The mining area seabed simulation device 11 is used to simulate the complex seabed topography of the deep-sea polymetallic sulfide mining area. The mining area seabed simulation device 11 consists of a concrete structure 11a, a hinge 11b and a cylinder 11c. The concrete structure 11a is used to simulate the seabed topography. One end of the bottom of the concrete structure 11a is connected to the experimental water pool 12 through a hinge 11b, and the other end of the bottom of the concrete structure 11a is connected to the experimental water pool 12 through an oil cylinder 11c. The oil cylinder 11c is used to adjust the inclination angle of the concrete structure 11a to adjust the slope of the seabed topography. At the same time, the top of the oil cylinder 11c and the other end of the bottom of the concrete structure 11a, and the bottom of the oil cylinder 11c and the experimental water pool 12 are rotatably connected.

[0047] In this embodiment, the parameters such as size, weight, elastic modulus, etc. of the deep-sea riser-bottom tank coupling system experimental device of the present invention are calculated based on actual parameters using a certain similarity ratio.

[0048] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A deep-sea riser-bottom tank coupling system experimental device, characterized in that: It comprises a mining ship motion simulation device (1), a suspension device model (2), a ball joint (3), an energy storage buffer damping device (4), a hard pipe model (5), an intermediate cabin model (6), a leg model (7), a hose model (8), a buoyancy ball model (9), a mining vehicle motion simulation device (10), a mining area seabed simulation device (11), an experimental water pool (12) and an underwater observation device (13); Underwater observation devices (13) are fixed at both ends of the experimental water pool (12), and the two underwater observation devices (13) have different heights and viewing angles, and are used to observe the states of the intermediate cabin model (6) and the hose model (8) through the underwater observation devices (13). The mining area seabed simulation device (11) is located at the bottom of the experimental water pool (12), the intermediate cabin model (6) sits on the mining area seabed simulation device (11), the outrigger models (7) are symmetrically distributed on the outside of the intermediate cabin model (6), and one end of the hose model (8) is connected to the intermediate cabin model (6). The mining vehicle motion simulation device (10) is located at the top of one end of the hose model (6), the buoyancy ball model (9) is located outside the hose model (8), the mining vehicle motion simulation device (10) is located at the end of the hose model (8) away from the middle cabin model (6), the hard pipe model (5) is located at the top of the middle cabin model (6), the ball joint (3) is located at the top of the hard pipe model (5), the suspension device model (2) is located at the top of the ball joint (3), the mining vessel motion simulation device (1) is located at the top of the suspension device model (2), and the energy storage buffer damping device (4) is connected to one end of the suspension device model (2).

2. A deep-sea riser-bottom tank coupling system experimental device according to claim 1, characterized in that: The underwater observation device (13) is an underwater camera.

3. The deep-sea riser-bottom tank coupling system experimental device according to claim 1 is characterized in that: The buoyancy ball model (9) is a low-density resin ball with a round hole in the middle, and is strung on the hose model (8) through the round hole in the middle. The number and position of the buoyancy ball model on the hose model (8) are adjustable.

4. The deep-sea riser-bottom tank coupling system experimental device according to claim 1 is characterized in that: The suspension device model (2) comprises a cylinder (2a) and a piston (2b); the cylinder (2a) is a cylindrical structure with a cavity; the top end of the cylinder (2a) is fixed to the mining ship motion simulation device (1); a piston (2b) is arranged inside the cylinder (2a); and the bottom end of the piston (2b) is connected to an energy storage buffer damping device (4).

5. The deep-sea riser-bottom tank coupling system experimental device according to claim 4 is characterized in that: The piston (2b) divides the internal cavity of the cylinder (2a) into an upper chamber and a lower chamber, wherein the upper chamber is a low-pressure chamber communicating with the outside, and the lower chamber is a high-pressure chamber filled with high-pressure gas.

6. A deep-sea riser-bottom tank coupling system experimental device according to claim 4, characterized in that: The energy storage buffer damping device (4) comprises a pipeline (4a), a throttle valve (4b) and an accumulator (4c); the accumulator (4c) is connected to the bottom of the cylinder (2a) through the pipeline (4a); and the throttle valve (4b) is connected in series to the pipeline (4a).

7. The deep-sea riser-bottom tank coupling system experimental device according to claim 1 is characterized in that: The intermediate cabin model (6) includes a frame (6a), a silo (6b), an intermediate cabin measurement and control terminal (6c), a dynamometer at the hard pipe connection (6d), a dynamometer at the soft pipe connection (6e), a dynamometer at the leg connection (6f), an inclination measuring device (6g), a silo gravity sensor (6h) and an underwater communication cable (6i). The bottom of the frame (6a) is provided with a silo (6b) for filling simulated mineral materials. The gravity sensor (6h) is fixed between the bottom of the silo (6b) and the frame (6a) for measuring the underwater weight of the mineral materials in the silo. The top of the frame (6a) and the silo are opposite to the hard pipe model (5). A dynamometer (6d) at the hard pipe connection is fixed at the corresponding position; a dynamometer (6e) at the hose connection is fixed at one end of the frame (6a) and at a position corresponding to the hose model (8); a dynamometer (6f) at the leg connection is fixed at the bottom of both ends of the frame (6a) and at a position corresponding to the leg model (7); an inclination measuring device (6g) is fixed at one end of the top of the frame (6a); the top of the frame (6a) is also connected to an underwater communication cable (6i); one end of the underwater communication cable (6i) is connected to a measurement and control terminal (6c) for remotely adjusting the extension angle of the leg model (7) through the measurement and control terminal (6c).

8. The deep-sea riser-bottom tank coupling system experimental device according to claim 1 is characterized in that: The mining vehicle motion simulation device (10) comprises a crawler trolley (10a), a measurement and control cable (10b), a trolley measurement and control terminal (10c) and a distance measuring sensor (10d); the crawler trolley (10a) is fixed to a hose model (8); a distance measuring sensor (10d) is fixed to the top of the crawler trolley (10a); the top of the crawler trolley (10a) is also connected to a measurement and control cable (10b); and the top of the measurement and control cable (10b) is connected to the trolley measurement and control terminal (10c).

9. The deep-sea riser-bottom tank coupling system experimental device according to claim 1 is characterized in that: The mining area seabed simulation device (11) is used to simulate the complex seabed topography of a deep-sea polymetallic sulfide mining area. The mining area seabed simulation device (11) is composed of a concrete structure (11a), a hinge (11b) and an oil cylinder (11c). The concrete structure (11a) is used to simulate the seabed topography. One end of the bottom of the concrete structure (11a) is connected to an experimental water pool (12) through a hinge (11b), and the other end of the bottom of the concrete structure (11a) is connected to the experimental water pool (12) through an oil cylinder (11c), so as to adjust the inclination angle of the concrete structure (11a) through the operation of the oil cylinder (11c).

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