Wave blocking device and wave blocking method

Abstract

The invention belongs to the technical field of ocean wave absorbing engineering, and discloses a wave blocking device and a wave blocking method. The wave blocking device comprises a control unit, a wave blocking structure, a driving mechanism, a first detection module and a second detection module. The wave blocking structure is telescopic, at least one wave blocking structure is arranged, and a shielding space with an opening is defined by the at least one wave blocking structure, the forecastle structure of the semi-submerged ship and the buoyancy tank structure; the driving mechanism is used for driving the wave blocking structure to stretch; the first detection module is used for detecting the draught depth of the semi-submerged ship, the inclination angle of the semi-submerged ship and the height of waves, and the control unit can drive the wave blocking structure to stretch out and draw back to the target height according to the real-time draught depth of the semi-submerged ship, the real-time inclination angle of the semi-submerged ship and the real-time height of the waves; the second detection module is used for detecting the water surface condition in the shielding space. According to the wave blocking device and the wave blocking method, intelligent lifting of the wave blocking structure can be achieved, the influence of waves on the semi-submerged ship during submerged loading and unloading is reduced, and the safety during loading and unloading is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of ocean wave dissipation engineering, and in particular, to a wave blocking device and a wave blocking method. Background Art

[0002] A semi-submersible ship, also known as a semi-submersible mother ship, adjusts its own ballast water to submerge the loading deck into the water so as to float a specific cargo to be carried onto the loading deck of the semi-submersible ship from a designated position and transport the cargo to a designated position. During the diving and floating operation stage of the semi-submersible ship, the cargo needs to move towards or away from the semi-submersible ship under the action of a tugboat or a mooring system. During this loading process, the cargo will be impacted by waves from time to time; especially in the case of poor sea conditions, the cargo may have large deviations or rotations due to the violent influence of the waves, resulting in inaccurate landing, inability to be positioned, and even serious situations such as out-of-control movement, mooring line breakage, and impact on the hull, thus leading to loading accidents and causing serious losses of personnel and goods. Therefore, at present, the diving and floating operation of semi-submersible ships is very restricted by sea conditions, which often requires spending a lot of time waiting for the operation window, incurring a heavy time cost, and also restricting the popularization and application of semi-submersible ships. Summary of the Invention

[0003] The purpose of the present invention is to provide a wave blocking device and a wave blocking method, which can realize the intelligent lifting of the wave blocking structure, create a sheltered operation area for the semi-submersible ship, reduce the influence of waves on the diving, floating, loading and unloading of the semi-submersible ship, ensure the safety during loading and unloading, improve the restricted conditions of the diving and floating operation of the semi-submersible ship, and greatly expand the application range of the semi-submersible ship.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] On the one hand, a wave blocking device is provided, including:

[0006] A control unit;

[0007] A retractable wave blocking structure, the wave blocking structure is arranged on the deck of the semi-submersible ship, at least one wave blocking structure is arranged along the circumferential direction of the semi-submersible ship, and at least one wave blocking structure and the bow structure and the pontoon structure of the semi-submersible ship enclose a sheltered space with an opening on the deck, and the opening is used for passing the cargo;

[0008] A driving mechanism, the driving mechanism is communicatively connected with the control unit, and the output end of the driving mechanism can be connected to the wave blocking structure for driving the wave blocking structure to retract and extend;

[0009] A first detection module, which is communicatively connected to the control unit and is used to detect the draft depth of the semi-submersible ship, the inclination angle of the semi-submersible ship, and the height of the waves. The control unit can drive the wave blocking structure to extend or retract to a target height according to the real-time draft depth of the semi-submersible ship, the real-time inclination angle of the semi-submersible ship, and the real-time height of the waves;

[0010] A second detection module, which is arranged in the shielding space and is communicatively connected to the control unit, and is used to detect the water surface condition in the shielding space.

[0011] Preferably, the draft depth of the semi-submersible ship is d, the molded depth of the semi-submersible ship is D, the distance from the side of the wave blocking structure facing away from the shielding space to the rotation center axis of the semi-submersible ship is B, the inclination angle of the semi-submersible ship is β, the height of the waves is h, the pre-increased height of the water surface is t, and the target height of the wave blocking structure is H. H = tan(arctan((d - D) / B)+β)×B+(h / 2 + t) / cosβ.

[0012] Preferably, the wave blocking structure includes a plurality of wave blocking boxes that are slidably sleeved with each other up and down. A wave dissipation component is arranged on the side of each wave blocking box facing away from the shielding space. The driving mechanism is arranged on the deck, and the output end of the driving mechanism can be connected to any one of the wave blocking boxes.

[0013] Preferably, the height of each wave blocking box is A, and the number of wave blocking boxes that need to be lifted when the wave blocking structure reaches the target height H is N. When H / A is an integer, N = H / A; when H / A is a decimal, N = [H / A]+1.

[0014] Preferably, a positioning member is arranged at the output end of the driving mechanism, and a positioning ring is arranged on each wave blocking box. The positioning member can be inserted into the positioning ring of any one of the wave blocking boxes so that the driving mechanism can drive the wave blocking structure to extend or retract.

[0015] Preferably, the wave blocking structure further includes a locking component, and the locking component is arranged between adjacent wave blocking boxes. The locking component can limit and fix adjacent wave blocking boxes.

[0016] Preferably, the locking component includes a driving member and a locking member. The driving member is arranged at the bottom end of the wave blocking box that is above among adjacent wave blocking boxes, and the driving member is communicatively connected to the control unit. A limiting hole is arranged at the top end of the wave blocking box that is below among adjacent wave blocking boxes. The first end of the locking member is rotatably connected to the output end of the driving member, and the driving member is used to drive the locking member to rotate so that the second end of the locking member is inserted into the limiting hole.

[0017] Preferably, a third detection module is further included, the third detection module includes multiple fourth detection elements, the multiple fourth detection elements are arranged in a one-to-one correspondence with the multiple wave-breaking boxes, the fourth detection elements are communicatively connected with the control unit, and the fourth detection elements are used to detect the structural stress of the wave-breaking boxes.

[0018] Preferably, the first detection module includes a first detection element, a second detection element and a third detection element which are arranged on the driving mechanism, the first detection element is used to detect the height of the waves, the second detection element is used to detect the inclination angle of the semi-submersible vessel, and the third detection element is used to detect the draft depth of the semi-submersible vessel.

[0019] On the other hand, a wave blocking method is also provided, using the wave blocking device as described above, comprising the following steps:

[0020] S1. Drive the semi-submersible vessel to dive to the loading and unloading draft depth;

[0021] S2, the first detection module detects the draft, inclination angle and wave height of the semi-submersible vessel, and feeds back to the control unit, the control unit calculates the target height of the wave-blocking structure according to the draft, inclination angle and wave height of the semi-submersible vessel, and the control unit drives the driving mechanism to extend and retract the wave-blocking structure to the target height;

[0022] S3, the second detection module detects the water surface condition of the shielded space in real time, and determines whether the water surface condition meets the operation requirements. If so, the loading and unloading operation is performed; if not, step S4 is executed;

[0023] S4, the control unit controls the driving mechanism to drive the wave-blocking structure to descend to an initial height, and the semi-submersible vessel floats to an initial draft depth to stop loading and unloading operations.

[0024] Advantages of the present invention: At least one wave blocking structure forms a sheltered space on the deck of the semi-submersible ship with the forecastle structure and the pontoon structure of the semi-submersible ship. When the wave blocking structure extends or retracts to an appropriate height, the wave blocking structure can block, divide, and break the sea waves, thereby reducing the incident angle and energy of the waves, and further reducing the surging degree of the waves in the sheltered space, forming a sea wave mitigation area in the sheltered space, creating good wave shelter operation conditions. The goods can enter and exit the sheltered space through the opening of the sheltered space, greatly reducing the impact of waves on the loading and unloading of the semi-submersible ship and ensuring the safety during loading and unloading. When performing the loading and unloading operation, first drive the semi-submersible ship to submerge to the loading and unloading draft depth. The first detection module can detect the draft depth, tilt angle of the semi-submersible ship, and the height of the waves in real time, and feed these data back to the control unit. The control unit calculates the target height of the wave blocking structure required by the semi-submersible ship at the loading and unloading draft depth based on these data, and then the control unit controls the drive mechanism to drive the wave blocking structure to extend or retract to the target height. After the wave blocking structure rises to the target height, the second detection module can detect the water surface condition in the sheltered space in real time and feed the data back to the control unit in real time. The control unit determines whether the water surface condition in the sheltered space is within the allowable range based on these data. If so, the loading and unloading operation is carried out; if it exceeds the allowable range, the control unit controls the wave blocking structure to extend or retract to the initial height, and the semi-submersible ship floats up to the initial draft depth to stop the loading and unloading operation. Such a setting realizes the intelligent extension and retraction of the wave blocking structure, thereby accurately controlling the extension and retraction height of the wave blocking structure, ensuring the wave blocking effect of the wave blocking device, and maximizing the protection of the safety of the semi-submersible ship's diving and floating operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the top view layout diagram of the wave blocking device provided by the present invention;

[0026] Figure 2 is the side view layout diagram of the wave blocking device provided by the present invention;

[0027] Figure 3 is the top view of the wave blocking structure of the wave blocking device provided by the present invention;

[0028] Figure 4 Schematic diagram of the control unit of the wave blocking device provided by the present invention.

[0029] In the figure:

[0030] 1. Control unit; 11. Intelligent lifting area; 12. Wave and angle detection area; 13. Stress detection area; 2. Wave blocking structure; 3. Sheltered space; 4. Drive mechanism; 41. Mounting seat; 42. Intelligent lifting arm; 5. Locking assembly; 6. Fourth detection element;

[0031] 100. Semi-submersible ship; 101. Pontoon structure. DETAILED DESCRIPTION OF THE INVENTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present invention, rather than limiting the present invention. In addition, it should be noted that, for the sake of convenience of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0033] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; 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 or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0035] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, 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, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0036] Refer to Figures 1 to 4 , this embodiment provides a wave blocking device, which can realize the intelligent expansion and contraction of the wave blocking structure 2, reduce the influence of waves on the loading and unloading of the semi-submersible ship 100, and ensure the safety during loading and unloading. The wave blocking device includes a control unit 1, a telescopic wave blocking structure 2, a driving mechanism 4, a first detection module and a second detection module. Refer to Figure 1 and Figure 2, a wave blocking structure 2, the wave blocking structure 2 is arranged on the deck of the semi-submersible ship 100, at least one wave blocking structure 2 is arranged along the circumferential direction of the semi-submersible ship 100, and at least one wave blocking structure 2 forms a shelter space 3 with an opening on the deck together with the forecastle structure and the pontoon structure 101 of the semi-submersible ship 100, and the opening is used for passing goods. The driving mechanism 4 is communicatively connected to the control unit 1, and the output end of the driving mechanism 4 can be connected to the wave blocking structure 2 for driving the wave blocking structure 2 to expand and contract. The first detection module is communicatively connected to the control unit 1 for detecting the draft depth of the semi-submersible ship 100, the inclination angle of the semi-submersible ship 100, and the height of the waves. The control unit 1 can drive the wave blocking structure 2 to expand and contract to a target height according to the real-time draft depth of the semi-submersible ship 100, the real-time inclination angle of the semi-submersible ship 100, and the real-time height of the waves. The second detection module is arranged in the shelter space 3 and is communicatively connected to the control unit 1 for detecting the water surface condition in the shelter space 3.

[0037] In the wave blocking device provided in this embodiment, at least one wave blocking structure 2 forms a shelter space 3 with the forecastle structure and the pontoon structure 101 of the semi-submersible ship 100 on the deck of the semi-submersible ship 100. When the wave blocking structure 2 expands and contracts to a suitable height, the wave blocking structure 2 can block, divide and break the sea waves, thereby reducing the incident angle and energy of the waves, and further reducing the surging degree of the waves in the shelter space 3, forming a sea wave mitigation area in the shelter space 3, creating good wave shelter operation conditions, and goods can enter and exit the shelter space 3 through the opening of the shelter space 3, greatly reducing the impact of the waves on the loading and unloading of the semi-submersible ship 100 and ensuring the safety during loading and unloading. When performing the loading and unloading operation, first drive the semi-submersible ship 100 to submerge to the loading and unloading draft depth. The first detection module can detect the draft depth, inclination angle and wave height of the semi-submersible ship 100 in real time and feed these data back to the control unit 1. The control unit 1 calculates the target height of the wave blocking structure 2 required by the semi-submersible ship 100 at the loading and unloading draft depth according to these data. Then, the control unit 1 controls the driving mechanism 4 to drive the wave blocking structure 2 to expand and contract to the target height. After the wave blocking structure 2 rises to the target height, the second detection module can detect the water surface condition in the shelter space 3 in real time and feed the data back to the control unit 1 in real time. The control unit 1 judges whether the water surface condition in the shelter space 3 is within the allowable range through these data. If so, the loading and unloading operation is carried out; if it exceeds the allowable range, the control unit 1 controls the wave blocking structure 2 to expand and contract to the initial height, and the semi-submersible ship 100 floats up to the initial draft depth to stop the loading and unloading operation. Such a setting realizes the intelligent expansion and contraction of the wave blocking structure 2, so as to accurately control the expansion and contraction height of the wave blocking structure 2, ensure the wave blocking effect of the wave blocking device, and maximize the protection of the safety of the semi-submersible ship 100 during diving and floating operations.

[0038] It should be noted that the water surface conditions include the height, wave speed, etc. of the waves in the shielding space 3. Optionally, the second detection module is a wave gauge, and its measurement and calculation part is arranged on the top of the driving mechanism 4. The measurement float of the wave gauge is located on the water surface of the shielding space 3 and is arranged at intervals along the water area adjacent to the pontoon structure 101, the wave-breaking structure 2 and the forecastle structure. Further, multiple wave gauges can be arranged to improve accuracy. The second detection module obtains data such as wave height and wave speed measured by multiple wave gauges and draws a statistical chart of wave data to judge the water surface conditions.

[0039] In this embodiment, two wave-breaking structures 2 are provided, and each wave-breaking structure 2 is arranged on the deck between the two pontoon structures 101 of the semi-submersible ship 100. Optionally, the wave-breaking structure 2 can be fixed to the deck by means including but not limited to welding, riveting or bolt connection. In another alternative embodiment, the wave-breaking structure 2 can be set to be movable so as to change the position of the wave-breaking structure 2 and realize the flexible arrangement of the wave-breaking structure 2.

[0040] Optionally, the wave-breaking structure 2 includes a plurality of wave-breaking boxes that are slidably sleeved with each other up and down. A wave-dissipating component is arranged on one side of each wave-breaking box facing away from the shielding space 3. The driving mechanism 4 is arranged on the deck, and the output end of the driving mechanism 4 can be connected to any wave-breaking box. The multiple wave-breaking boxes are sleeved with each other. When the driving mechanism 4 is started, the upper wave-breaking box can sequentially extend out or retract into the wave-breaking box at the bottommost end, so as to realize the expansion and contraction of the wave-breaking structure 2. Optionally, a sliding groove is arranged on one of the adjacent two wave-breaking boxes, and a sliding block is arranged on the other. The sliding block is stuck into the sliding groove and can slide in cooperation with the sliding groove, so as to realize the mutual sleeving between the adjacent wave-breaking boxes. The wave-dissipating component can effectively reduce the acting force of the wave on the wave-breaking box, achieve the effect of wave dissipation, improve the impact resistance and wave-breaking effect of the wave-breaking box, and extend the service life of the wave-breaking box. In this embodiment, the wave-dissipating component includes a plurality of wave-dissipating protrusions arranged at intervals on the wave-breaking box, and the wave-dissipating protrusions can be set to include but not limited to wedge shape, hollow, semi-circular, etc.

[0041] Optionally, refer to Figure 2 and Figure 3 , driving mechanisms 4 are arranged on both opposite sides of each wave-breaking structure 2 to ensure the stability of the expansion and contraction of the wave-breaking structure 2. Optionally, the driving mechanism 4 includes a mounting seat 41 and an intelligent lifting arm 42 arranged on the mounting seat 41. The mounting seat 41 is arranged on the deck, and the intelligent lifting arm 42 is stably connected to the deck through the mounting seat 41. The motion motor of the intelligent lifting arm 42 is communicatively connected to the control unit 1, and the control unit 1 can control the intelligent lifting arm 42 to drive the wave-breaking structure 2 to expand and contract by sending instructions to the motion motor. The intelligent lifting arm 42 is a prior art and will not be described in detail in this embodiment.

[0042] Further, define the draft of the semi-submersible ship 100 as d, the molded depth of the semi-submersible ship 100 as D, the distance from the side of the wave-breaking structure 2 facing away from the shielding space 3 to the rotation center axis of the semi-submersible ship 100 as B, the inclination angle of the semi-submersible ship 100 as β, the height of the wave as h, the pre-increased height of the water surface as t, and the target height of the wave-breaking structure 2 as H. Then H = tan(arctan((d - D) / B) + β)×B + (h / 2 + t) / cosβ. Here, the molded depth D of the semi-submersible ship 100 is the distance from the deck to the bottom of the semi-submersible ship 100. The distance B from the side of the wave-breaking structure 2 facing away from the shielding space 3 to the rotation center axis of the semi-submersible ship 100 can be obtained through measurement and calculation. The pre-increased height t of the water surface is the possible increased height of the future water surface, which can be calculated by taking the maximum value of the data measured by the astronomical forecast data, wave gauges, and current meters on the semi-submersible ship. This embodiment does not make specific limitations. It should be noted that the wave height h used to calculate the target height of the wave-breaking structure 2 is the wave height outside the shielding space 3.

[0043] Optionally, the first detection module includes a first detection element, a second detection element, and a third detection element arranged on the driving mechanism 4. The first detection element is used to detect the height of the wave, the second detection element is used to detect the inclination angle of the semi-submersible ship 100, and the third detection element is used to detect the draft of the semi-submersible ship 100. Optionally, the first detection element is a wave gauge, the second detection element is an attitude sensor, and the third detection element is an optoelectronic sensor.

[0044] Further, define the height of each wave-breaking box as A, and the number of wave-breaking boxes that need to be lifted when the wave-breaking structure 2 reaches the target height as N. When H / A is an integer, N = H / A; when H / A is a decimal, N = [H / A] + 1. After calculating the target height of the wave-breaking structure 2, the number of wave-breaking boxes that need to be lifted can be obtained through the above formula, and then the corresponding number of wave-breaking boxes can be lifted through the driving mechanism 4. During the loading and unloading process, the first detection module continuously detects the height of the wave and the inclination angle of the semi-submersible ship 100 and feeds them back to the control unit 1. The control unit 1 calculates the real-time target height of the wave-breaking structure 2 and the number of wave-breaking boxes that need to be lifted, and controls the driving mechanism 4 to lift the corresponding number of wave-breaking boxes to achieve precise control of the telescopic height of the wave-breaking structure 2.

[0045] It can be understood that when the overall height of the wave-breaking structure 2 is still less than the target height after all the wave-breaking boxes are fully extended, the wave-breaking structure 2 may not be fixedly connected to the deck. Instead, the wave-breaking structure 2 can be lifted as a whole through the driving mechanism 4 so that the top of the wave-breaking structure 2 is flush with the target height. Then, it can be judged whether the water surface condition in the shielding space 3 meets the operation requirements through the control unit 1 and the second detection module.

[0046] Optionally, the wave blocking structure 2 further includes a locking assembly 5. The locking assembly 5 is provided between adjacent wave blocking boxes, and the locking assembly 5 can limit and fix adjacent wave blocking boxes. After the upper wave blocking box completely extends out of the lower wave blocking box, the adjacent wave blocking boxes are limited and fixed by the locking assembly 5, so as to ensure the stability of the limit between adjacent wave blocking boxes and improve the wave blocking effect of the wave blocking structure 2.

[0047] Optionally, the locking assembly 5 includes a driving member and a locking member. The driving member is arranged at the bottom end of the upper wave blocking box among adjacent wave blocking boxes. The driving member is communicatively connected to the control unit 1. A limiting hole is provided at the top end of the lower wave blocking box among adjacent wave blocking boxes. The first end of the locking member is rotatably connected to the output end of the driving member. The driving member is used to drive the locking member to rotate so that the second end of the locking member is inserted into the limiting hole. Such a setting realizes the locking of adjacent wave blocking boxes. When the second end of the locking member is inserted into the limiting hole, the adjacent wave blocking boxes can be limited and fixed, and the operation is very convenient. Since the driving member is communicatively connected to the control unit 1, the rotation of the locking member can be automatically controlled through the control unit 1, so that adjacent wave blocking boxes can be automatically locked. Optionally, the driving member is a rotary motor, and a hook portion is provided at the second end of the locking member. When the locking member is rotated, the hook portion can be hooked in the limiting hole.

[0048] Furthermore, a positioning member is provided at the output end of the driving mechanism 4. A positioning ring is provided on each wave blocking box. The positioning member can be inserted into the positioning ring of any wave blocking box so that the driving mechanism 4 can drive the wave blocking structure 2 to expand and contract. After determining the number required for the wave blocking structure 2 to rise to the target height, the positioning member at the output end of the driving mechanism 4 is inserted into the positioning rings of the corresponding number of wave blocking boxes, and then the driving mechanism 4 is started. The setting of the positioning member and the positioning ring ensures the stability of the limit between the driving mechanism 4 and the wave blocking structure 2, and prevents the wave blocking structure 2 from disengaging from the driving mechanism 4 during expansion and contraction. In this embodiment, the positioning member is arranged at the end of the intelligent lifting arm 42. Optionally, the positioning member is a hook provided at the end of the intelligent lifting arm 42, and the hook can be hooked in the positioning ring.

[0049] Optionally, it further includes a third detection module. The third detection module includes a plurality of fourth detection elements 6, and the plurality of fourth detection elements 6 are arranged in one-to-one correspondence with the plurality of wave barriers. The fourth detection element 6 is communicatively connected to the control unit 1, and the fourth detection element 6 is used to detect the structural stress of the wave barrier. The fourth detection element 6 can accurately detect the structural stress of the wave barrier and feedback it to the control unit 1. After the wave blocking structure 2 extends or retracts to the target height, the fourth detection element 6 continuously detects the structural stress of the wave barrier and transmits it to the control unit 1. If the structural stress of each wave barrier is within the allowable range, it indicates that the wave blocking structure 2 can withstand the impact of the waves outside the shelter space 3; when the structural stress of any one wave barrier exceeds the allowable range, it indicates that the wave blocking structure 2 cannot withstand the impact of the waves outside the shelter space 3. At this time, a signal should be sent to the driving mechanism 4 through the control unit 1 to drive the wave blocking structure 2 to extend or retract to the initial height, and at the same time, the semi-submersible ship 100 should surface to the initial draft depth to stop the loading and unloading operation. Optionally, the fourth detection element 6 is a force sensor and a deformation sensor. It can be understood that the loading and unloading operation can only be carried out when the water surface condition in the shelter space 3 and the structural stress of each wave barrier are within the allowable range.

[0050] Optionally, the control unit 1 includes a visualization terminal, which is arranged in the command center of the semi-submersible ship 100. Through the visualization terminal, the operator can accurately master the data during the loading and unloading process, which is clear and easy to operate. Further, referring to Figure 4 , the visualization terminal includes an intelligent lifting area 11, a wave and angle detection area 12, and a stress detection area 13. The driving mechanism 4 is communicatively connected to the intelligent lifting area 11, the first detection module and the second measurement module are communicatively connected to the wave and angle detection area 12, and the third detection module is communicatively connected to the stress detection area 13. By setting like this, the visualization terminal is divided into multiple detection areas, and the corresponding modules are controlled through the corresponding detection areas.

[0051] This embodiment also provides a wave blocking method, which applies the wave blocking device as described above, and includes the following steps:

[0052] S1. Drive the semi-submersible ship 100 to submerge to the loading and unloading draft depth;

[0053] S2. The first detection module detects the draft depth, tilt angle of the semi-submersible ship 100, and the height of the waves, and feedbacks them to the control unit 1. The control unit 1 calculates the target height of the wave blocking structure 2 according to the draft depth of the semi-submersible ship 100, the tilt angle of the semi-submersible ship 100, and the height of the waves, and the control unit 1 drives the driving mechanism 4 to make the wave blocking structure 2 extend or retract to the target height;

[0054] S3. The second detection module continuously detects the water surface condition of the shelter space, and judges whether the water surface condition meets the operation requirements. If so, perform the loading and unloading operation; if not, perform step S4;

[0055] S4. The control unit 1 controls the drive mechanism 4 to drive the wave-breaking structure 2 to descend to the initial height, and the semi-submersible ship 100 floats to the initial draft to stop the loading and unloading operation.

[0056] In step S2:

[0057] The control unit 1 calculates the target height H of the wave-breaking structure 2 according to the formula H = tan(arctan((d - D) / B) + β)×B + (h / 2 + t) / cosβ, and determines the number N of wave-breaking boxes to be lifted according to the value of H / A. When H / A is an integer, N = H / A; when H / A is a decimal, N = [H / A] + 1. Then the control unit 1 issues an instruction to the motion motor of the intelligent lifting arm 42 of the drive mechanism 4 according to the number N of wave-breaking boxes to be lifted, so that the positioning member at the end of the intelligent lifting arm 42 is inserted into the positioning ring on the corresponding number of wave-breaking boxes to lift the wave-breaking structure 2. When the previous wave-breaking box fully extends the next wave-breaking box, the control unit 1 issues an instruction to the driving member of the locking assembly 5 to make the second end of the locking member rotate and snap into the limiting hole to fix the adjacent wave-breaking boxes.

[0058] In step S3: The second detection module continuously detects the water surface condition in the shielding space 3 and feeds back the data to the control unit 1 in real time. The control unit 1 judges whether the water surface condition in the shielding space 3 is within the allowable range based on these data. At the same time, the fourth detection unit 6 on each wave-breaking box continuously detects the structural stress borne by the wave-breaking box and feeds it back to the control unit 1, and the control unit 1 judges whether the structural stress of the wave-breaking box is within the set allowable range. If the structural stress of each wave-breaking box is within the allowable range and the water surface condition in the shielding space 3 is within the allowable range, it indicates that the marine environment is suitable for loading and unloading operations; if the structural stress of any wave-breaking box exceeds the allowable range or the water surface condition in the shielding space 3 is not within the allowable range, it indicates that the marine environment is not suitable for loading and unloading operations.

[0059] In step S4, the control unit 1 first issues an instruction to the driving member of the locking assembly 5 to make the second end of the locking member rotate and disengage from the limiting hole, and then issues an instruction to the motion motor of the intelligent lifting arm 42 to make the intelligent lifting arm 42 drive the wave-breaking structure 2 to expand and contract until the upper wave-breaking boxes are all retracted into the bottommost wave-breaking box.

[0060] It should be noted that for the wave-breaking method provided in this embodiment, the wave-breaking structure 2 is raised for wave-breaking operation only after the semi-submersible ship 100 dives to the loading and unloading draft. Therefore, the semi-submersible ship 100 will not be subjected to the huge wave impact moment caused by the existence of the wave-breaking structure 2 during the diving process, nor will it be subjected to the wind heeling moment caused by the bad wind speed, and there is no risk of capsizing, which further ensures the safety of the loading and unloading operation.

[0061] In addition, in the prior art, due to concerns about the adverse effects of wave impacts on the loading and unloading operations of the semi-submersible ship 100, the semi-submersible ship 100 strictly restricts sea conditions during actual operations, which greatly limits the application scenarios of the semi-submersible ship 100. However, through the wave-breaking device and wave-breaking method provided in this embodiment, the telescopic height of the wave-breaking structure 2 can be precisely controlled, and the water surface condition in the shielding space 3 can be precisely detected by the second detection module, and the structural stress borne by the wave-breaking structure 2 can be precisely detected by the third detection module. This enables the semi-submersible ship 100 to accurately determine whether it can perform loading and unloading operations according to the actual sea conditions, thereby expanding the selection of sea conditions for the loading and unloading of the semi-submersible ship 100, realizing the wide use of the semi-submersible ship 100 in more application scenarios such as high-sea-condition loading and unloading, emergency rescue and salvage, and national key strategic operations, avoiding excessive cost and construction period investment, and promoting the development of the shipping industry, the salvage industry, and the national defense industry.

[0062] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Wave blocking device, characterized in that, Comprising: A control unit (1); A telescopic wave-breaking structure (2), the wave-breaking structure (2) is arranged on the deck of the semi-submersible ship (100), at least one wave-breaking structure (2) is arranged along the circumferential direction of the semi-submersible ship (100), and at least one wave-breaking structure (2) forms a sheltered space (3) with an opening on the deck together with the forecastle structure and the pontoon structure (101) of the semi-submersible ship (100), and the opening is used for passing goods; A driving mechanism (4), the driving mechanism (4) is communicatively connected with the control unit (1), and the output end of the driving mechanism (4) can be connected to the wave-breaking structure (2) for driving the wave-breaking structure (2) to expand and contract; A first detection module, the first detection module is communicatively connected with the control unit (1) for detecting the draft depth of the semi-submersible ship (100), the inclination angle of the semi-submersible ship (100), and the height of the wave, and the control unit (1) can drive the wave-breaking structure (2) to expand and contract to a target height according to the real-time draft depth of the semi-submersible ship (100), the real-time inclination angle of the semi-submersible ship (100), and the real-time height of the wave; A second detection module, which is arranged in the sheltered space (3) and communicatively connected with the control unit (1) for detecting the water surface condition in the sheltered space (3).

2. The wave blocking device according to claim 1, wherein, The draft depth of the semi-submersible ship (100) is d, the molded depth of the semi-submersible ship (100) is D, the distance from the side of the wave-breaking structure (2) facing away from the sheltered space (3) to the rotation center axis of the semi-submersible ship (100) is B, the inclination angle of the semi-submersible ship (100) is β, the height of the wave is h, the pre-increased height of the water surface is t, and the target height of the wave-breaking structure (2) is H, H = tan(arctan((d - D) / B) + β)×B + (h / 2 + t) / cosβ.

3. The wave blocking device according to claim 2, wherein The wave-breaking structure (2) includes a plurality of wave-breaking boxes that slide and sleeve with each other up and down, and a wave-dissipating component is arranged on the side of each wave-breaking box facing away from the sheltered space (3), the driving mechanism (4) is arranged on the deck, and the output end of the driving mechanism (4) can be connected to any one of the wave-breaking boxes.

4. The wave blocking device according to claim 3, characterized in that, The height of each wave-breaking box is A, and the number of wave-breaking boxes that need to be lifted when the wave-breaking structure (2) reaches the target height H is N. When H / A is an integer, N = H / A; when H / A is a decimal, N = [H / A] + 1.

5. The wave blocking device according to claim 3, characterized in that, A positioning member is arranged at the output end of the driving mechanism (4), and a positioning ring is arranged on each wave-breaking box, and the positioning member can be inserted into the positioning ring of any one of the wave-breaking boxes so that the driving mechanism (4) can drive the wave-breaking structure (2) to expand and contract.

6. The wave blocking device according to claim 3, characterized in that, The wave-breaking structure (2) further includes a locking assembly (5), and the locking assembly (5) is arranged between adjacent wave-breaking boxes, and the locking assembly (5) can limit and fix adjacent wave-breaking boxes.

7. The wave blocking device according to claim 6, characterized in that, The locking assembly (5) includes a driving member and a locking member. The driving member is disposed at the bottom end of the upper wave-breaking box among adjacent wave-breaking boxes. The driving member is communicatively connected to the control unit (1). A limiting hole is provided at the top end of the lower wave-breaking box among adjacent wave-breaking boxes. The first end of the locking member is rotatably connected to the output end of the driving member. The driving member is configured to drive the locking member to rotate so that the second end of the locking member is inserted into the limiting hole.

8. The wave blocking device according to claim 3, wherein, It further includes a third detection module. The third detection module includes a plurality of fourth detection elements (6). The plurality of fourth detection elements (6) are provided in one-to-one correspondence with the plurality of wave-breaking boxes. The fourth detection element (6) is communicatively connected to the control unit (1). The fourth detection element (6) is configured to detect the structural stress of the wave-breaking box.

9. The wave blocking device according to any one of claims 1-8, characterized in that, The first detection module includes a first detection element, a second detection element, and a third detection element provided on the driving mechanism (4). The first detection element is configured to detect the height of the wave. The second detection element is configured to detect the inclination angle of the semi-submersible ship (100). The third detection element is configured to detect the draft depth of the semi-submersible ship (100).

10. A wave blocking method, applying the wave blocking device according to any one of claims 1-9, characterized in that, It includes the following steps: S1. Drive the semi-submersible ship (100) to submerge to the loading and unloading draft depth. S2. The first detection module detects the draft depth, inclination angle of the semi-submersible ship (100), and the height of the wave, and feeds back to the control unit (1). The control unit (1) calculates the target height of the wave-breaking structure (2) according to the draft depth of the semi-submersible ship (100), the inclination angle of the semi-submersible ship (100), and the height of the wave. The control unit (1) drives the driving mechanism (4) to extend and retract the wave-breaking structure (2) to the target height. S3. The second detection module continuously detects the water surface condition of the shielding space (3), and determines whether the water surface condition meets the operation requirements. If so, perform the loading and unloading operation. If not, perform step S4. S4. The control unit (1) controls the driving mechanism (4) to drive the wave-breaking structure (2) to descend to the initial height, and the semi-submersible ship (100) floats to the initial draft depth to stop the loading and unloading operation.

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