CN109024457B

CN109024457B - Seabed silt prevention device and silt prevention method thereof

Info

Publication number: CN109024457B
Application number: CN201810750936.4A
Authority: CN
Inventors: 张俊彪; 于培松; 张峰; 俞亮亮; 潘冲; 杨万康; 宋泽坤; 应剑云; 许雪峰
Original assignee: Hangzhou Honglan Green Technology Co ltd; Second Institute of Oceanography MNR
Current assignee: Hangzhou Honglan Green Technology Co ltd; Second Institute of Oceanography MNR
Priority date: 2018-07-10
Filing date: 2018-07-10
Publication date: 2020-04-24
Anticipated expiration: 2038-07-10
Also published as: CN109024457A

Abstract

The invention relates to a silt prevention device, and discloses a seabed silt prevention device and a silt prevention method of the device, wherein the seabed silt prevention device comprises a seabed crawler (1), an installation plate (7) is fixedly arranged on the upper surface of the seabed crawler (1), a large water turbine (8) and a small water turbine (9) are arranged on the installation plate (7), the large water turbine (8) comprises a first blade (80), the first blade (80) is of a hollow structure and forms a cavity (800) inside the hollow structure, the cavity (800) is a sheet-shaped cavity, a water inlet groove (801) is arranged on the front surface of the first blade (80), a plurality of water outlet holes (802) are arranged on the back surface of the first blade (80), and the water inlet groove (801) and the water outlet holes (802) are both communicated with the cavity (800). According to the invention, through the secondary disturbance of the large water turbine and the small water turbine, after the stable tide passes through the rotating large water turbine blade, the flow velocity and the flow direction of the stable tide are changed, the flow line is disturbed, and the disturbed tide flow line is rotated and fluctuated.

Description

Seabed silt prevention device and silt prevention method thereof

Technical Field

The invention relates to the field of seabed silt prevention, in particular to a seabed silt prevention device and a silt prevention method thereof.

Background

The coastline of China is more than 18,000 kilometers, severe tide and tide movement exists in a plurality of coastal sea areas, and a wide tide energy development prospect is provided for China.

In general, the use of tidal energy (tidal current energy) involves a series of problems such as power grid-connected transmission and the like, in which an open hydroelectric power generation device is arranged in a strong-tide sea area, and power generation is performed by using the horizontal flow of seawater.

However, China also has a lot of gulfs and fishing ports with weak currents, which cannot be used for tidal current energy power generation, and the power conditions of the gulfs are too weak, so that silt is easy to deposit and the functions of the gulfs and fishing ports are influenced.

The invention relates to a device for preventing the tidal current from silting by directly utilizing the tidal current in the seabed, which can be used in fishing ports, wind-sheltering anchor areas and other areas.

The device can be generally placed in sea areas where the flow rate is low and the sedimentation is easy, such as fishing ports. And the silt is prevented from being deposited by using the turbulence generated by the tidal power.

Disclosure of Invention

Aiming at the defect that the seabed sludge is not easy to clean in the prior art, the invention provides a seabed silt prevention device and a silt prevention method thereof.

In order to solve the technical problem, the invention is solved by the following technical scheme:

the seabed silt prevention device comprises a seabed tracked vehicle, wherein a camera, a signal receiving and transmitting device, a motor and a controller are further arranged on the seabed tracked vehicle, the camera shoots a seabed image and forms an image signal to be transmitted to the signal receiving and transmitting device, the signal receiving and transmitting device transmits the received image signal to mobile equipment held by workers, the signal receiving and transmitting device receives an instruction signal transmitted by the mobile equipment and transmits the instruction signal to the controller, the controller receives the instruction signal transmitted by the signal receiving and transmitting device and controls the motor to work, a crawler belt is arranged at the bottom of the seabed tracked vehicle, and the motor is connected with the crawler belt and drives the crawler belt to rotate; the mounting plate is fixedly arranged on the upper surface of the seabed crawler, a large water turbine and a small water turbine are arranged on the mounting plate, the large water turbine comprises a base fixed on the mounting plate through screws, a support frame is arranged on the base, a first rotating shaft is arranged at the upper end of the support frame, a plurality of first blades are circumferentially distributed on the first rotating shaft and drive the first blades to rotate, the first blades are of hollow structures and form cavities inside the first blades, the cavities are sheet cavities, one surfaces, facing the water flow direction, of the first blades are defined to be front surfaces, the other surfaces of the first blades are positioned to be back surfaces, water inlet grooves extending outwards along the radial direction of the first rotating shaft are formed in the front surfaces of the first blades, a plurality of water outlet holes are formed in the back surfaces of the first blades, the water inlet grooves and the water outlet holes are communicated with the cavities, the small water turbine is located at the downstream of.

Preferably, the crawler type seabed crawler vehicle further comprises a blade motor, the blade motor is arranged on the seabed crawler vehicle, and the blade motor is driven by the controller and drives the first blade and the second blade to rotate.

Preferably, the mounting plate is provided with a slide rail, the small water turbine comprises a slide seat and a second rotating shaft arranged on the slide seat, the second blade is arranged on the second rotating shaft and is driven by the second rotating shaft to rotate, and the slide seat is matched with the slide rail and drives the small water turbine to move on the slide rail.

Preferably, the slide rail is perpendicular to the axial direction of the first rotating shaft, two reels are respectively mounted at two ends of the slide rail, two ropes are respectively fixed at two ends of the slide seat, the two ropes are respectively wound on the two reels, and the two reels are controlled to rotate by the controller.

Preferably, the length of the first blade is 1.8 to 3.5 times the length of the second blade.

Preferably, the included angle between the axis of the first rotating shaft and the horizontal plane is 0-35 degrees.

Preferably, the seabed tracked vehicle is also provided with a water storage cabin and a compressed air pump which are communicated with each other, the water storage cabin is provided with a cabin door communicated with an external water area, the cabin door is an electric cabin door and is controlled to be opened and closed by a controller, and the controller controls the compressed air pump to inflate the water storage cabin.

Preferably, the system further comprises a flow direction sensor installed on the submarine crawler, and the flow direction sensor is connected with the controller.

The seabed silt prevention method comprises a seabed silt prevention device and comprises the following steps:

1) transporting the submarine tracked vehicle to a designated position and placing the submarine tracked vehicle into the sea;

2) sending an instruction signal to the controller through the signal receiving and sending device, and controlling a cabin door of the water storage cabin to open and feed water, so that the seabed tracked vehicle descends to the seabed;

3) the operator observes the seabed condition through the camera, and the controller controls the motor to drive the crawler belt to travel to a sludge accumulation position and enables the front surface of the first blade to face the water flow direction;

4) the controller controls the blade motor to work and drives the first blade and the second blade to rotate;

5) the position of the small water turbine on the slide rail is adjusted, the controller controls the two reels at the two ends of the slide rail to respectively rotate positively and negatively, and the combined action of the two reels drives the slide seat to move back and forth on the slide rail;

6) water flow forms vortex water flow after being discharged through the water inlet groove, the cavity and the water outlet hole of the first blade, and secondary disturbance is carried out on the second blade on the small water turbine which moves continuously.

Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: through the secondary disturbance of big hydraulic turbine and little hydraulic turbine for steady trend is through behind the big hydraulic turbine blade of pivoted, and the velocity of flow of steady trend will change, and the disturbance will take place for the streamline, and the trend streamline after the disturbance will present rotation and fluctuation, places a size only half the size little hydraulic turbine behind big hydraulic turbine again, and the trend after the disturbance will pass through little hydraulic turbine, and under the effect of little hydraulic turbine blade, the trend will take place the secondary disturbance, forms the torrent of certain intensity. Utilize the instability of torrent to and its stronger shearing force for there is stronger disturbance to the silt of seabed siltation, make silt be difficult to subside, also can disturb the silt of deposit at the seabed, make effectively prevent silt to siltation in fishing port bay.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a top view of the slide rail of fig. 1.

The names of the parts indicated by the numerical references in the drawings are as follows: the device comprises a 1-submarine crawler, a 2-camera, a 3-signal transceiving device, a 4-motor, a 5-controller, a 6-crawler, a 7-mounting plate, a 8-large water turbine, a 9-small water turbine, a 10-blade motor, a 11-water storage cabin, a 12-compressed air pump, a 13-flow direction sensor, a 111-cabin door, a 71-sliding rail, a 711-reel, a 80-first blade, a 81-base, a 82-supporting frame, a 83-first rotating shaft, a 800-cavity, a 801-water inlet tank, an 802-water outlet hole, a 90-second blade, a 91-sliding seat, a 92-second rotating shaft and a 911-rope.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

The seabed silt-preventing device comprises a seabed tracked vehicle 1, wherein a camera 2, a signal transceiver 3, a motor 4 and a controller 5 are further arranged on the seabed tracked vehicle 1, the camera 2 shoots a seabed image and forms an image signal to be sent to the signal transceiver 3, the signal transceiver 3 sends the received image signal to mobile equipment held by workers, the signal transceiver 3 receives an instruction signal sent by the mobile equipment and transmits the instruction signal to the controller 5, the controller 5 receives the instruction signal transmitted by the signal transceiver 3 and controls the motor 4 to work, the crawler 6 is arranged at the bottom of the seabed tracked vehicle 1, and the motor 4 is connected with the crawler 6 and drives the crawler 6 to rotate; the mounting plate 7 is fixedly mounted on the upper surface of the seabed crawler 1, a large water turbine 8 and a small water turbine 9 are mounted on the mounting plate 7, the large water turbine 8 comprises a base 81 fixed on the mounting plate 7 through screws, a support frame 82 is mounted on the base 81, a first rotating shaft 83 is mounted at the upper end of the support frame 82, a plurality of first blades 80 are circumferentially distributed on the first rotating shaft 83 and drive the first blades 80 to rotate, the first blades 80 are hollow structures and form a cavity 800 inside the first blades, the cavity 800 is a sheet-shaped cavity, one surface of each first blade 80 facing the water flow direction is defined as a front surface, the other surface of each first blade 80 is positioned as a back surface, a water inlet groove 801 extending outwards along the radial direction of the first rotating shaft 83 is formed in the front surface of each first blade 80, a plurality of water outlet holes 802 are formed in the back surface of each first blade 80, the water inlet groove 801 and the water outlet holes 802 are both communicated with the, the small turbine 9 is provided with a plurality of circumferentially distributed second blades 90.

The crawler type seabed crawler 1 is characterized by further comprising a blade motor 10, wherein the blade motor 10 is installed on the seabed crawler 1, and the blade motor 10 is driven by the controller 5 and drives the first blade 80 and the second blade 90 to rotate. The operation of the controller 5 is controlled by command signals sent by the operator through the signal transceiver 3.

The mounting plate 7 is provided with a slide rail 71, the small water turbine 9 comprises a slide seat 91 and a second rotating shaft 92 arranged on the slide seat 91, the second blade 90 is arranged on the second rotating shaft 92 and is driven by the second rotating shaft 92 to rotate, and the slide seat 91 is matched with the slide rail 71 and drives the small water turbine 9 to move on the slide rail 71.

The slide rail 71 is arranged perpendicular to the axial direction of the first rotating shaft 83, the slide rail 71 is arranged on the horizontal mounting plate 7, two reels 711 are respectively mounted at two ends of the slide rail 71, two ropes 911 are respectively fixed at two ends of the slide seat 91, the two ropes 911 are respectively wound on the two reels 711, and the two reels 711 are controlled to rotate by the controller 5. The controller 5 controls the two reels 711 to rotate forward and backward at the same rotation speed, so that the small water turbine 9 can be pulled to move left and right on the slide rail 71.

The length of the first blade 80 is 2 times the length of the second blade 90. The small turbine 9 should be half the size of the large turbine 8. The distance between the turbines should be 2 times the diameter of the large turbine.

The axis of the first shaft 83 is at an angle of 15 to the horizontal.

The seabed tracked vehicle 1 is also provided with a water storage cabin 11 and a compressed air pump 12 which are communicated with each other, the water storage cabin 11 is provided with a cabin door 111 communicated with an external water area, the cabin door 111 is an electric cabin door and is controlled to be opened and closed by the controller 5, and the controller 5 controls the compressed air pump 12 to charge air into the water storage cabin 11.

And the device also comprises a flow direction sensor 13 arranged on the submarine crawler 1, wherein the flow direction sensor 13 is connected with the controller 5.

1) transporting the crawler 1 to a designated location and putting it into the sea;

2) sending an instruction signal to the controller 5 through the signal transceiver 3 and controlling the cabin door 111 of the water storage cabin 11 to open and enter water, so that the submarine crawler 1 descends to the seabed;

3) the operator observes the seabed condition through the camera 2, and the controller 5 controls the motor 4 to drive the crawler belt 6 to run to a sludge accumulation position and enables the front surface of the first blade 80 to face the water flow direction;

4) the controller 5 controls the vane motor 10 to work and drives the first vane 80 and the second vane 90 to rotate;

5) the position of the small water turbine 9 on the sliding rail 71 is adjusted, the controller 5 controls the two reels 711 at the two ends of the sliding rail 71 to respectively rotate positively and negatively, and the two reels 711 drive the sliding seat 91 to move back and forth on the sliding rail 71 under the combined action;

6) the water flow is discharged through the water inlet channel 801, the cavity 800 and the water outlet hole 802 of the first blade 80 to form a vortex water flow, and then the second blade 90 on the small water turbine 9 which moves continuously carries out secondary disturbance.

In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.

Claims

1. Seabed silt prevention device, its characterized in that: the device comprises a submarine crawler (1), wherein a camera (2), a signal transceiver (3), a motor (4) and a controller (5) are further mounted on the submarine crawler (1), the camera (2) shoots a submarine image and forms an image signal to be sent to the signal transceiver (3), the signal transceiver (3) sends the received image signal to mobile equipment, the signal transceiver (3) receives an instruction signal sent by the mobile equipment and transmits the instruction signal to the controller (5), the controller (5) receives the instruction signal transmitted by the signal transceiver (3) and controls the motor (4) to work, a crawler (6) is mounted at the bottom of the submarine crawler (1), and the motor (4) is connected with the crawler (6) and drives the crawler (6) to rotate; the seabed caterpillar track vehicle comprises a seabed caterpillar track vehicle (1), wherein a mounting plate (7) is fixedly arranged on the upper surface of the seabed caterpillar track vehicle (1), a large water turbine (8) and a small water turbine (9) are arranged on the mounting plate (7), the large water turbine (8) comprises a base (81) fixed on the mounting plate (7) through screws, a support frame (82) is arranged on the base (81), a first rotating shaft (83) is arranged at the upper end of the support frame (82), a plurality of first blades (80) are distributed on the circumference of the first rotating shaft (83) and drive the first blades (80) to rotate, the first blades (80) are of a hollow structure and form a cavity (800) inside the first blades, one surface, facing the water flow direction, of the first blades (80) is defined as a front surface, the other surface of the reverse surface of the first blades (80) is positioned as a front surface, a water inlet groove (801) extending outwards along the radial direction of the first rotating shaft (83) is, the water inlet groove (801) and the water outlet hole (802) are communicated with the cavity (800), the small water turbine (9) is positioned at the downstream of the large water turbine (8), and the small water turbine (9) is provided with a plurality of second blades (90) distributed circumferentially.

2. The subsea silt prevention device of claim 1, wherein: the marine crawler belt vehicle further comprises a blade motor (10), the blade motor (10) is installed on the marine crawler belt vehicle (1), and the blade motor (10) is driven by the controller (5) and drives the first blade (80) and the second blade (90) to rotate.

3. The subsea silt prevention device of claim 1, wherein: be equipped with slide rail (71) on mounting panel (7), little hydraulic turbine (9) include slide (91) and install second pivot (92) on slide (91), and second blade (90) are installed and are driven by second pivot (92) and rotate on second pivot (92), and slide (91) and slide rail (71) cooperation and drive little hydraulic turbine (9) and move on slide rail (71).

4. The subsea silt prevention device of claim 3, wherein: the sliding rail (71) is perpendicular to the axial direction of the first rotating shaft (83), two reels (711) are mounted at two ends of the sliding rail (71) respectively, two ropes (911) are fixed at two ends of the sliding seat (91) respectively, the two ropes (911) are wound on the two reels (711) respectively, and the two reels (711) are controlled to rotate by the controller (5).

5. The subsea silt prevention device of claim 1, wherein: the length of the first blade (80) is 1.8-3.5 times of the length of the second blade (90).

6. The subsea silt prevention device of claim 1, wherein: the included angle between the axis of the first rotating shaft (83) and the horizontal plane is 0-35 degrees.

7. The subsea silt prevention device of claim 1, wherein: the seabed tracked vehicle (1) is further provided with a water storage cabin (11) and a compressed air pump (12) which are communicated with each other, the water storage cabin (11) is provided with a cabin door (111) communicated with an external water area, the cabin door (111) is an electric cabin door and is controlled to be opened and closed by a controller (5), and the controller (5) controls the compressed air pump (12) to inflate the water storage cabin (11).

8. The subsea silt prevention device of claim 1, wherein: the device also comprises a flow direction sensor (13) arranged on the submarine crawler (1), and the flow direction sensor (13) is connected with the controller (5).

9. The seabed silt prevention method is characterized in that: comprising a subsea silt preventing apparatus according to claims 1-8, the steps comprising:

1) transporting the submarine tracked vehicle (1) to a designated position and putting the submarine tracked vehicle into the sea;

2) the signal transceiver (3) sends an instruction signal to the controller (5) and controls a cabin door (111) of the water storage cabin (11) to open and feed water, so that the seabed tracked vehicle (1) descends to the seabed;

3) the operator observes the seabed situation through the camera (2), and the controller (5) controls the motor (4) to drive the crawler belt (6) to travel to a sludge accumulation position and enables the front surface of the first blade (80) to be arranged towards the water flow direction;

4) the controller (5) controls the blade motor (10) to work and drives the first blade (80) and the second blade (90) to rotate;

5) the position of the small water turbine (9) on the sliding rail (71) is adjusted, the controller (5) controls the two reels (711) positioned at the two ends of the sliding rail (71) to respectively rotate forwards and backwards, and the two reels (711) drive the sliding seat (91) to move back and forth on the sliding rail (71) under the combined action of the two reels (711);