Water curtain generating device and ship

Abstract

The present invention discloses a water curtain generating device and a ship. The water curtain generating device includes a flow guide mechanism, a spray mechanism, a flow guide member, and a flow limiter. The flow guide mechanism includes a flow guide member, the flow guide member is provided with a flow guide groove, the bottom surface of the flow guide groove is an arc surface concavely arranged on the inner side of the flow guide mechanism. The spray mechanism is arranged above the flow guide member and is used to spray liquid into the flow guide groove. The top end of the flow guide member is connected to the water outlet end of the flow guide member. The flow guide member is inclined relative to a vertical plane, and the angle between the flow guide member and the vertical plane is less than or equal to 45 degrees. The flow limiter is installed on the hull, the flow limiter is located in the liquid discharge direction of the flow guide groove, and a gap is formed between the flow limiter and the flow guide member so that the liquid discharged from the flow guide groove is blocked by the flow limiter and flows to the flow guide member through the gap. The present invention is conducive to ensuring that most of the water flow can be directed to the ship's outer plate, thereby effectively protecting the ship's outer plate and improving resource utilization.

Description

Technical Field

[0001] The present invention relates to the technical field of ship equipment, and in particular to a water curtain generating device and a ship. Background Art

[0002] Currently, with more and more ships using LNG (liquefied natural gas) as fuel, during the LNG bunkering process, in order to prevent LNG leakage and the resulting low temperature from freezing the ship's outer plate, a water curtain device that can protect the ship's outer plate is needed. Existing water curtain devices generally use a diversion structure to guide the water flow to the ship's outer plate, so that the water flow is guided as much as possible by the diversion structure to the ship's outer plate and flows along the outer wall of the ship's outer plate. However, due to the effect of water pressure, some water flow will produce a splashing effect after impacting the diversion structure, resulting in the splashing water flow being unable to come into contact with the ship's outer plate, failing to play the role of protecting the ship's outer plate, and also resulting in a waste of resources. Summary of the Invention

[0003] One purpose of an embodiment of the present invention is to provide a water curtain generating device and a ship, which can ensure that most of the water flow can be directed to the outer plate of the ship, thereby effectively protecting the outer plate of the ship and improving resource utilization.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A water curtain generating device comprises a flow guiding mechanism, a spraying mechanism, a flow guiding member and a flow limiting member; the flow guiding mechanism comprises a flow guiding member, the flow guiding member is provided with a flow guiding groove, the bottom surface of the flow guiding groove is an arc surface concave toward the inner side of the flow guiding mechanism; the spraying mechanism is arranged above the flow guiding member, and is used to spray liquid into the flow guiding groove; the top end of the flow guiding member is connected to the water outlet end of the flow guiding member, the flow guiding member is inclined relative to a vertical plane, and the angle between the flow guiding member and the vertical plane is less than or equal to 45°; the flow limiting member is installed on the hull, the flow limiting member is located in the liquid discharge direction of the flow guiding groove, and a gap is formed between the flow limiting member and the flow guiding member, so that the liquid discharged from the guide groove is blocked by the flow limiting member and flows to the flow guiding member through the gap.

[0006] Optionally, the top end of the flow guide member and the water outlet end of the flow guide member are connected by an arc transition.

[0007] Optionally, the flow limiting member includes a first connecting plate and a second connecting plate connected to each other, and the angle between the first connecting plate and the second connecting plate is an obtuse angle; the first end of the first connecting plate is connected to the first end of the second connecting plate, the second end of the first connecting plate extends in a direction close to the top of the guide member, and the second end of the second connecting plate extends to the outer wall of the guide member and forms the gap with the outer wall of the guide member.

[0008] Optionally, the first connecting plate is rotatably mounted on the hull by means of bolts, so that the second connecting plate can rotate along with the first connecting plate around the bolts in directions approaching and away from the guide member.

[0009] Optionally, the flow guiding mechanism is fixedly mounted on the hull; and the flow limiting member is rotatably connected to the flow guiding mechanism.

[0010] Optionally, the flow limiting member is rotatably connected to the flow guiding mechanism via a bolt, and the bolt is provided with a nut for locking the flow limiting member.

[0011] Optionally, it also includes an angle adjustment mechanism, which includes a driving gear; the flow limiting member is provided with a rotating shaft, which is rotatably connected to the flow guide member, and the rotating shaft is provided with a transmission member, which is provided with gear teeth that mesh with the driving gear for transmission; the pitch circle diameter of the driving gear is smaller than the pitch circle diameter of the gear teeth.

[0012] Optionally, the transmission member is a non-full gear.

[0013] The beneficial effects of the present invention are as follows: when the water curtain generating device is in operation, the liquid is sprayed into the guide groove through the spray mechanism, so that the liquid flows along the guide groove to the guide member, wherein part of the liquid will be splashed due to impact during the flow process, and the splashed liquid will be blocked by the flow limiting member, so that the liquid can be discharged from the gap between the flow limiting member and the guide member under the guidance of the guide member, and finally the liquid flows evenly along the inclined guide member to the outer plate of the ship, and forms a water curtain on the guide member and the outer plate of the ship, thereby achieving the effect of effectively protecting the outer plate of the ship from low temperature damage when LNG is refueled and leaking, wherein, by using the curved surface as the The bottom of the guide groove can slow down the impact force between the water flow and the guide groove, reduce the speed of the water flow when it reaches the guide piece, and help reduce the impact and splashing of the water flow. By setting the flow limiting piece, part of the splashing water flow can be blocked, so that the splashing water flow can also flow to the guide piece under the action of the flow limiting piece. Moreover, the inclined guide piece can well guide the water curtain to smoothly transition to the outer plate of the ship, which is helpful to prevent the water curtain from directly splashing to the outside of the outer plate of the ship, and ensure that most of the water flow can flow to the outer wall of the outer plate of the ship in the form of a water curtain, thereby improving the utilization rate of the water flow, effectively protecting the outer plate of the ship, and helping to reduce the waste of resources.

[0014] An embodiment of the present invention also provides a ship, including a hull, a ship outer plate arranged on the hull, and the above-mentioned water curtain generating device, wherein the bottom end of the diversion member is arranged on the top of the ship outer plate; it can also ensure that most of the water flow can be directed to the ship outer plate, thereby achieving effective protection of the ship outer plate when the ship is refueling with LNG and improving resource utilization.

[0015] Optionally, the flow guiding member and the flow limiting member are both located within the plane of the outer wall of the ship's outer plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0017] Figure 1 A schematic structural diagram of a water curtain generating device provided in an embodiment of the present invention;

[0018] Figure 2 A top view of a flow guide mechanism of a water curtain generating device provided in an embodiment of the present invention;

[0019] Figure 3 A schematic structural diagram of a flow guide member of a water curtain generating device provided by an embodiment of the present invention;

[0020] Figure 4 A schematic structural diagram of a flow limiting component of a water curtain generating device provided by an embodiment of the present invention;

[0021] Figure 5 A schematic structural diagram of a water curtain generating device provided by an embodiment of the present invention in which a flow limiting member is rotatably connected to a side plate via bolts;

[0022] Figure 6 A top view of a flow restrictor of a water curtain generating device provided by an embodiment of the present invention, wherein the flow restrictor is rotatably connected to a side plate via bolts;

[0023] Figure 7 A schematic diagram showing the connection between a flow limiting member and an angle adjustment mechanism of a water curtain generating device provided by an embodiment of the present invention;

[0024] Figure 8 A schematic structural diagram of a water curtain generating device provided by an embodiment of the present invention when the transmission member is a sector gear;

[0025] Figure 9 A schematic structural diagram of a water curtain generating device provided in an embodiment of the present invention in which the transmission member is a rotating body with gear teeth only in a partial area of the circumferential surface;

[0026] In the figure: 100, flow guide mechanism; 110, flow guide member; 120, side plate; 121, first ear plate; 130, top plate; 200, flow guide member; 210, arc portion; 220, supporting bottom plate; 230, fixing ear; 300, flow limiting member; 310, first connecting plate; 320, second connecting plate; 330, third connecting plate; 331, second ear plate; 340, rotating shaft; 350, transmission member; 351, gear teeth; 352, anti-slip member; 353, limiting member; 410, bolt; 420, nut; 500, drive motor; 510, drive gear; 600, ship outer plate. DETAILED DESCRIPTION

[0027] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0028] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected" and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] More and more ships are using LNG (liquefied natural gas) as fuel. During the LNG refueling process, in order to prevent LNG leakage from causing freezing of the ship's outer plate, a water curtain device that can protect the ship's outer plate is needed. Existing water curtain devices generally use a diversion structure to guide water flow to the ship's outer plate. However, during the water spraying process, due to the water pressure, after the water flow hits the diversion structure, part of the water flow will flow along the diversion groove of the diversion structure to the outer wall of the outer plate, while the other part of the water flow will be forced to splash out, resulting in the splashed water flow failing to protect the outer plate, resulting in a waste of resources. In addition, the splashed water flow will also affect the dock equipment and the normal operation of the dock.

[0031] See also Figures 1 to 9 , an embodiment of the present invention provides a water curtain generating device, comprising a flow guiding mechanism 100, a spraying mechanism (not shown in the figure), a flow guiding member 200 and a flow limiting member 300; the flow guiding mechanism 100 includes a flow guiding member 110, the flow guiding member 110 is provided with a flow guiding groove, the bottom surface of the flow guiding groove is an arc surface concave toward the inner side of the flow guiding mechanism 100; the spraying mechanism is arranged above the flow guiding member 110, and is used to spray liquid into the flow guiding groove; the top end of the flow guiding member 200 is connected to the water outlet end of the flow guiding member 110, the flow guiding member 200 is inclined relative to the vertical plane, and the angle between the flow guiding member 200 and the vertical plane is less than or equal to 45 degrees; the flow limiting member 300 is installed on the hull, the flow limiting member 300 is located in the liquid discharge direction of the flow guiding groove, and a gap is formed between the flow limiting member 300 and the flow guiding member 200, so that the liquid discharged from the flow guiding groove is blocked by the flow limiting member 300 and flows to the flow guiding member 200 through the gap.

[0032] It should be noted that the inner side of the guide mechanism 100 is the side of the guide mechanism 100 close to the hull, and the guide member 110 may be an arc-shaped guide plate, see Figure 2The guide mechanism 100 further includes a top plate 130 and two side plates 120. The top plate 130 is disposed on the top of the guide plate, and the two side plates 120 are disposed on both sides of the guide plate. The top plate 130 and the two side plates 120 can prevent water from splashing out from both sides or the top when flowing in the guide groove, which is beneficial to reducing the ineffective waste of water flow. A reinforcing plate is provided between the side plate 120 and the guide plate to strengthen the connection stability between the side plate 120 and the guide plate; please refer to Figure 1 , plane A is a vertical plane, and the angle between the guide member 200 and the vertical plane is less than or equal to 45°, that is, Figure 1 The angle α is less than or equal to 45°, and the specific angle needs to be set according to the actual height of the ship's outer plate 600 and the height of the guide member 200; the water outlet end of the guide member 110 is the lower end of the guide member 110, and the spraying mechanism is arranged on the side close to the higher end of the guide member 110. The liquid sprayed into the guide groove by the spraying mechanism can be water or other liquids that can prevent the ship's outer plate 600 from being frozen; the guide member 110, the flow limiting member 300 and the guide member 200 are all made of stainless steel waterproof material, which is conducive to extending the service life of the entire device.

[0033] The embodiments of the present invention have the following effects: (1) When the water curtain generating device is in operation, the liquid is sprayed into the guide groove through the spray mechanism, so that the liquid flows along the guide groove to the guide member 200, wherein part of the liquid will be splashed due to impact during the flow process, and the splashed liquid will be blocked by the flow limiting member 300, so that the liquid can be discharged from the gap between the flow limiting member 300 and the guide member 200 under the guidance of the guide member 200, and finally the liquid flows evenly along the inclined guide member 200 to the ship outer plate 600, and forms a water curtain on the guide member 200 and the ship outer plate 600, thereby achieving the effect of effectively protecting the ship outer plate 600 from low temperature damage when LNG is refueled and leaking; (2) By using an arc surface as the bottom of the guide groove, the impact force between the water flow and the guide groove can be reduced, so that the speed of the water flow when reaching the guide member 200 is reduced, which is beneficial to reducing the impact and splashing of the water flow. By setting the flow limiting member 300, part of the splashing water flow can be blocked, so that the splashing water flow can also flow to the guide member 200 under the action of the flow limiting member 300. Moreover, the inclined guide member 200 can well guide the water curtain to smoothly transition to the outer plate 600 of the ship, which is beneficial to prevent the water curtain from directly splashing to the outside of the outer plate 600 of the ship, ensuring that most of the water flow can flow to the outer wall of the outer plate 600 of the ship in the form of a water curtain, thereby improving the utilization rate of the water flow, effectively protecting the outer plate 600 of the ship, and reducing the waste of resources. (3) Compared with the solution of only using an arc-shaped guide plate to guide the water flow so that the water curtain is thrown horizontally in a parabolic manner onto the outer wall of the ship's outer plate 600 for protection, the embodiment of the present invention can reduce the flow rate of the water flow through the combination of the guide member 110, the flow limiting member 300 and the guide member 200, thereby reducing the energy required for the water flow to impact and splash, and at the same time changing the flow direction of the water flow, ensuring that most or all of the water curtain thrown from the guide member 200 can fall into the range of the outer wall of the ship's outer plate 600, effectively improving the utilization efficiency of resources, thereby reducing the protection cost of the ship's outer plate 600; at the same time, the flow limiting member 300 can also prevent the water flow from splashing out and affecting the dock equipment, ensuring that the dock operation can proceed normally.

[0034] See also Figure 1 and Figure 3 In one embodiment, the flow guide 200 is tilted and the flow guide 200 is aligned with the vertical plane (ie Figure 1 The angle between the plane A) in Figure 1 The angle α) is 5° to 10°. This setting can ensure that the guide member 200 has a certain inclination angle to guide the water flow to smoothly transition to the outer wall of the ship's outer plate 600, while further reducing the height of the water flow ejected from the guide member 200, thereby helping to reduce the splashing water flow and thus reduce the waste of resources.

[0035] See also Figure 1 and Figure 3 The top of the guide member 200 and the outlet end of the guide member 110 are connected by a circular arc transition. The setting of the circular arc can ensure that there is no step difference between the guide member 110 and the guide member 200. Combined with the connection method between the two by welding or setting a seal, the sealing between the guide member 110 and the guide member 200 can be ensured, thereby reducing the waste of water resources. On the other hand, because the circular arc portion 210 of the guide member 200 is lower than the lowest point of the guide groove, there is no obstruction when the liquid flows from the guide member 110 to the guide member 200, ensuring that the liquid can flow smoothly from the guide member 110 to the guide member 200, effectively preventing the accumulation of ice in the guide groove and interfering with the normal flow of the liquid.

[0036] See also Figure 1 and Figure 4 The flow limiting member 300 includes a first connecting plate 310 and a second connecting plate 320 connected to each other, and the angle between the first connecting plate 310 and the second connecting plate 320 is an obtuse angle; the first end of the first connecting plate 310 is connected to the first end of the second connecting plate 320, and the second end of the first connecting plate 310 extends in a direction close to the top of the guide member 110, and the second end of the second connecting plate 320 extends to the outer wall of the guide member 200 and forms a gap with the outer wall of the guide member 200. The first connecting plate 310 extending toward the top of the flow guide member 110 and the second connecting plate 320 extending to the outer wall of the flow guide member 200 can together form a baffle for blocking the liquid discharged from the guide groove, and the angle between the first connecting plate 310 and the second connecting plate 320 is an obtuse angle. The first connecting plate 310 and the second connecting plate 320 are arranged at an obtuse angle, so that the bending direction of the flow limiting member 300 is roughly the same as the relative position of the guide groove and the flow guide member 200, thereby effectively preventing the liquid from rushing out of the flow limiting member 300 and causing waste. It should be noted here that at least part of the second connecting plate 320 is located above the water outlet end of the flow guide member 110, while the other part of the second connecting plate 320 is located above the water outlet end of the flow guide member 110. The connecting plate 320 is located below the water outlet end of the guide member 110 and is arranged opposite to the guide member 200. The blocked liquid will also be guided by the first connecting plate 310 and the second connecting plate 320 to flow back to the guide groove and the guide member 200, and then continue to be guided along the guide groove and the arc portion 210 of the guide member 200 to the gap between the second connecting plate 320 and the guide member 200. Finally, the liquid is guided along the inclined guide member 200 to the outer wall of the ship's outer plate 600, and forms a water curtain on the guide member 200 and the ship's outer plate 600, thereby achieving the effect of effectively protecting the ship's outer plate 600 to prevent the ship's outer plate 600 from being damaged by low temperature.

[0037] In one embodiment, the first connecting plate 310 is rotatably mounted on the hull via bolts 410, such that the second connecting plate 320 can rotate along with the first connecting plate 310 about the bolts 410 in a direction toward or away from the flow guide member 200. When the generation effect of the water curtain needs to be adjusted, the first connecting plate 310 can be rotated to drive the second connecting plate 320 to rotate toward or away from the flow guide member 200 for adjustment. The size of the gap between the second connecting plate 320 and the flow guide member 200 can be adjusted as needed. Adjusting the size of the gap between the second connecting plate 320 and the flow guide member 200 can be used to adjust the generation effect of the water curtain, allowing the water curtain to flow to the ship's outer plate 600 in an optimal state for protection.

[0038] It should be noted that the bolt 410 is equipped with a corresponding nut 420 to lock the flow restrictor 300 at a certain rotation angle, and when adjusting the gap between the flow restrictor 300 and the flow guide 200, the nut 420 must be loosened first. A support seat can be provided on the hull to provide a mounting position for the flow restrictor 300 so that the flow restrictor 300 can be installed above the flow guide 200; please refer to Figure 1 and Figure 4 The second end of the first connecting plate 310 extends in a direction close to the top of the guide member 110 , and the inner side of the guide mechanism 100 is the side away from the first connecting plate 310 .

[0039] See also Figures 5 and 6 The flow guide mechanism 100 is fixedly mounted on the hull; the flow restrictor 300 is rotatably connected to the flow guide mechanism 100. Specifically, the flow restrictor 300 is rotatably connected to the flow guide member 110 fixedly mounted on the hull, thereby indirectly rotatably connecting the flow restrictor 300 to the hull. This arrangement allows the flow restrictor 300 to rotate to adjust the gap between the flow restrictor 300 and the flow guide member 200, while also eliminating the need for a separate support base on the hull for mounting the flow restrictor 300. This allows the entire water curtain generating device to be manufactured as an independent iron fitting on the ship, making it suitable for installation on ships of various side types, thereby improving the device's practicality and portability.

[0040] It should be noted that the spray mechanism is installed on the hull, and the spray mechanism includes a spray pipe, which is provided with a plurality of spray holes or is installed with a plurality of nozzles. The spray pipe is supplied with water by the water supply system on the ship, and the fresh water provided by the water supply system can be effectively utilized by the arrangement of the flow limiting member 300 and the flow guiding member 200; the flow guiding mechanism 100 also includes a base, the bottom of the flow guiding member 110 is connected to the base and is fixed to the hull through the base, the inner side of the flow guiding mechanism 100 is the side of the flow guiding mechanism 100 close to the hull, and the bottom surface of the guide groove is concave to the inner side of the flow guiding mechanism 100, which is equivalent to the bottom surface of the guide groove close to the inner concave of the hull. ; When the flow guide mechanism 100 also includes a top plate 130 and two side plates 120, the top plate 130 is arranged on the top of the flow guide member 110, and the two side plates 120 are respectively arranged on both sides of the flow guide member 110, the two side plates 120 can be detachably connected to the base by fasteners, and the two ends of the flow limiting member 300 in the horizontal direction can each be rotatably connected to one of the side plates 120, so that while the flow limiting member 300 is rotatably connected to the flow guide member 110, the flow limiting member 300 can also effectively cover the guide groove in the horizontal direction, thereby preventing the liquid discharged from the guide groove from passing over the flow limiting member 300 and being discharged.

[0041] Please continue reading Figures 5 and 6 The flow limiting member 300 is rotatably connected to the flow guiding mechanism 100 via a bolt 410, and the bolt 410 is provided with a nut 420 for locking the flow limiting member 300. When the gap between the flow limiting member 300 and the flow guiding member 200 needs to be adjusted, the nut 420 can be loosened appropriately, and then the flow limiting member 300 can be rotated to a corresponding angle according to the gap size requirement between the flow limiting member 300 and the flow guiding member 200. After the flow limiting member 300 is rotated to the required angle, the nut 420 can be tightened again to fix the flow limiting member 300, thereby achieving the effect of adjusting the gap between the flow limiting member 300 and the flow guiding member 200 to the required size, thereby effectively expanding the scope of application of the entire device.

[0042] It should be noted that when the flow guide mechanism 100 also includes a top plate 130 and two side plates 120, the top plate 130 is arranged on the top of the flow guide member 110, and the two side plates 120 are respectively arranged on both sides of the flow guide member 110, the side plate 120 is provided with a first ear plate 121, and the flow limiting member 300 is provided with a second ear plate 331. The first ear plate 121 and the second ear plate 331 are provided with corresponding connecting holes, and the bolt 410 passes through the connecting holes of the two ear plates and is threadedly connected with the nut 420, thereby realizing the rotational connection between the flow limiting member 300 and the guide plate; in addition, in order to facilitate the connection between the first ear plate 121 and the second ear plate 331, the flow limiting member 300 also includes a third connecting plate 330, the first end of the third connecting plate 330 is vertically connected to the first connecting plate 310, and the second ear plate 331 is arranged on the third connecting plate 330.

[0043] In one embodiment, see Figure 7 The water curtain generating device also includes an angle adjustment mechanism, which includes a driving gear 510; the flow limiting member 300 is provided with a rotating shaft 340, which is rotatably connected to the flow guiding member 200, and a transmission member 350 is provided on the rotating shaft 340, which is provided with gear teeth 351 that mesh with the driving gear 510 for transmission; the pitch circle diameter of the driving gear 510 is smaller than the pitch circle diameter of the gear teeth 351. The embodiment of the present invention found that due to the small gap distance between the flow limiting member 300 and the flow guiding member 200, the operation and observation of the staff are both very demanding during adjustment, and it is difficult to accurately adjust the gap distance between the flow limiting member 300 and the flow guiding member 200 during adjustment, resulting in the staff needing to repeatedly adjust the rotation angle of the flow limiting member 300 during adjustment, which is not only cumbersome to operate but also increases the labor intensity of the staff. By setting up the angle adjustment mechanism, the meshing transmission between the driving gear 510 and the gear teeth 351 of the transmission member 350 can be utilized. During adjustment, the rotation of the driving gear 510 can drive the transmission member 350 to rotate, and then drive the rotating shaft 340 and the flow limiting member 300 to rotate accordingly, thereby achieving the effect of adjusting the gap distance between the flow limiting member 300 and the flow guide member 200. Moreover, because the pitch circle diameter of the driving gear 510 is smaller than the pitch circle diameter of the gear teeth 351, the flow limiting member 300 can be rotated at a relatively small angle by rotating the driving gear 510 at a relatively large angle during adjustment. This not only reduces the difficulty of operation and thus reduces the requirements of the staff in terms of operation and observation, but also can use the calculation of the rotation angle of the driving gear 510 to achieve accurate adjustment of the rotation angle of the flow limiting member 300, thereby achieving the effect of accurately adjusting the gap distance between the flow limiting member 300 and the flow guide member 200, and there is no need for the staff to repeatedly adjust, which is beneficial to reducing the labor intensity of the staff.

[0044] It should be noted that the flow limiting member 300 is fixedly connected to the rotating shaft 340, and the flow limiting member 300 and the rotating shaft 340 can be fixed by welding, and then the rotating shaft 340 is rotatably connected to the side plate 120; the flow limiting member 300 and the rotating shaft 340 can also be fixed by fasteners, and then the rotating shaft 340 is rotatably connected to the side plate 120; the angle adjustment mechanism also includes a drive motor 500, and the output shaft of the drive motor 500 is connected to the drive gear 510; the drive motor 500 is a forward and reverse motor, which can control the drive gear 510 to rotate clockwise or counterclockwise, thereby achieving the effect of increasing or decreasing the gap distance between the flow limiting member 300 and the flow guide member 200; the ratio between the pitch circle diameter of the gear teeth 351 and the pitch circle diameter of the drive gear 510 is an integer multiple, which makes it convenient to convert the rotation angle of the drive gear 510 into the rotation angle of the flow limiting member 300, and the specific ratio is designed according to actual needs. In addition, as an optional embodiment, the drive motor 500 can be installed on the side plate 120 of the guide mechanism 100, which also does not affect the entire water curtain generating device being made into an independent iron outfitting on the ship, making it convenient for the device to be transplanted and used, which is beneficial to improving the applicability of the device.

[0045] In one embodiment, see Figure 8 and Figure 9 The transmission member 350 is a non-full gear. A non-full gear refers to a partial structure of a gear (such as a sector gear) or a rotating body with gear teeth 351 in only a partial area on the circumference. By using a non-full gear as the transmission member 350, the area where the transmission member 350 and the drive gear 510 are engaged and transmitted will be limited to a certain angular range. The angular rotation range of the transmission member 350 can be controlled, and the angular rotation range of the rotating shaft 340 and the flow-limiting member 300 can be controlled. The angular rotation range of the flow-limiting member 300 can be controlled within an appropriate range, which not only prevents the flow-limiting member 300 from exerting excessive pressure on the flow-guiding member 200, causing deformation of the flow-guiding member 200 and affecting the normal use of the device, but also prevents the gap between the flow-limiting member 300 and the flow-guiding member 200 from being too large, affecting the generation effect of the water curtain.

[0046] Please note that Figure 8 When the transmission member 350 is a sector gear, anti-slipping members 352 can be provided on both side edges of the sector gear. The anti-slipping members 352 can control the rotation angle range of the current limiting member 300 on the one hand, and can also prevent the drive gear 510 from being disengaged from the transmission member 350 on the other hand, thereby ensuring that the angle adjustment mechanism can operate normally during the next angle adjustment operation. At the same time, in order to ensure that the rotating shaft 340 can be balanced left and right when rotating, a balancing block can be provided on the opposite side of the sector gear for the rotating shaft 340; please refer to FIG. Figure 9When the transmission member 350 is a rotating body with gear teeth 351 only partially located on its circumference, protruding stoppers 353 can be provided on either side of the gear teeth 351 area to similarly control the rotational range of the flow restrictor 300 and prevent the drive gear 510 from disengaging from the transmission member 350. Furthermore, both the anti-slip member 352 and the stopper 353 are made of an elastic material, effectively minimizing damage to the drive gear 510 while ensuring that the rotational range of the flow restrictor 300 is controlled.

[0047] An embodiment of the present invention also provides a ship, comprising a hull, a ship outer plate 600 arranged on the hull, and the above-mentioned water curtain generating device, wherein the bottom end of the guide member 200 is arranged on the top of the ship outer plate 600; when the water curtain generating device is in operation, it sprays liquid into the guide groove through the spray mechanism, so that the liquid flows along the guide groove to the guide member 200, wherein part of the liquid will be splashed due to impact during the flow process, and the splashed liquid will be blocked by the flow limiting member 300, so that the liquid can be discharged from the gap between the flow limiting member 300 and the guide member 200 under the guidance of the guide member 200, and finally the liquid flows evenly along the inclined guide member 200 to the ship outer plate 600, and forms a water curtain on the guide member 200 and the ship outer plate 600, thereby effectively protecting the ship outer plate 600 when the ship is refueling with LNG.

[0048] As an optional embodiment, the flow-guiding mechanism 100 is detachably fixed to the hull through a base, and the flow-limiting member 300 is rotatably connected to the flow-guiding mechanism 100; the bottom end of the flow-guiding member 200 is provided with a supporting base plate 220 extending in the horizontal direction, and the inner side of the flow-guiding member 200 is also provided with a fixing ear 230, and the fixing ear 230 is provided with a fixing hole fixedly connected to the hull. The setting of the supporting base plate 220 and the fixing ear 230 can provide a stable supporting environment for the flow-guiding member 200, so that the water flow can smoothly transition from the flow-guiding member 200 to the outer wall of the ship's outer plate 600.

[0049] See also Figure 1 , the flow guide 200 and the flow restrictor 300 are both located within the plane of the outer wall of the ship's outer plate 600. The embodiments of the present invention discovered that when the flow guide 200 and the flow restrictor 300 extend beyond the outer wall of the ship's outer plate 600, the flow guide 200 and the flow restrictor 300 indirectly increase the width of the ship. During the operation of the ship, the protruding flow guide 200 and the flow restrictor 300 are easily damaged by collision. Therefore, when the flow guide 200 and the flow restrictor 300 are both located within the plane of the outer wall of the ship's outer plate 600, that is, when neither extends beyond the outer wall of the ship's outer plate 600, the width of the ship will not be increased, which helps reduce the risk of collision of the flow guide 200 and the flow restrictor 300, and ensures that the device can be used for a long time.

[0050] In the description herein, it should be understood that terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0051] In this specification, reference to terms such as "one embodiment" or "example" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0052] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0053] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will readily conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A water curtain generating device, applied to ships, characterized in that: include: A flow guiding mechanism (100), the flow guiding mechanism (100) comprising a flow guiding member (110), the flow guiding member (110) being provided with a flow guiding groove, the bottom surface of the flow guiding groove being an arc surface concavely arranged toward the inner side of the flow guiding mechanism (100); a spraying mechanism, the spraying mechanism being arranged above the guide member (110) and being used for spraying liquid into the guide groove; A flow guide member (200), wherein the top end of the flow guide member (200) is connected to the water outlet end of the flow guide member (110), the flow guide member (200) is arranged to be inclined relative to a vertical plane, and the angle between the flow guide member (200) and the vertical plane is less than or equal to 45°; A flow limiting member (300) is installed on the hull, the flow limiting member (300) is located in the liquid discharge direction of the guide groove, and a gap is formed between the flow limiting member (300) and the guide member (200), so that the liquid discharged from the guide groove is blocked by the flow limiting member (300) and flows to the guide member (200) through the gap; the top end of the guide member (200) and the water outlet end of the guide member (110) are connected by an arc transition; the flow limiting member (300) includes a first connecting plate (310) and a second connecting plate (320) connected to each other, and the angle between the first connecting plate (310) and the second connecting plate (320) is an obtuse angle; The first end of the first connecting plate (310) is connected to the first end of the second connecting plate (320); the second end of the first connecting plate (310) extends in a direction close to the top of the flow guide (110); the second end of the second connecting plate (320) extends to the outer wall of the flow guide (200) and forms the gap with the outer wall of the flow guide (200); the flow guide mechanism (100) is fixedly installed on the hull; the flow limiting member (300) is rotatably connected to the flow guide mechanism (100), and further comprises an angle adjustment mechanism, wherein the angle adjustment mechanism comprises a driving gear (510); The flow limiting member (300) is provided with a rotating shaft (340), the rotating shaft (340) is rotatably connected to the flow guiding member (200), the rotating shaft (340) is provided with a transmission member (350), and the transmission member (350) is provided with gear teeth (351) that mesh with the driving gear (510). The pitch circle diameter of the driving gear (510) is smaller than the pitch circle diameter of the gear teeth (351).

2. The water curtain generating device according to claim 1, characterized in that: The first connecting plate (310) is rotatably mounted on the hull via bolts (410), so that the second connecting plate (320) can rotate along with the first connecting plate (310) around the bolts (410) in directions approaching and away from the guide member (200).

3. The water curtain generating device according to claim 1, characterized in that: The flow limiting member (300) is rotatably connected to the flow guiding mechanism (100) via a bolt (410), and the bolt (410) is provided with a nut (420) for locking the flow limiting member (300).

4. The water curtain generating device according to claim 1, characterized in that: The transmission member (350) is a non-full gear.

5. A ship, comprising a hull and a ship outer plate (600) arranged on the hull, characterized in that: Also includes: According to the water curtain generating device according to any one of claims 1 to 4, the bottom end of the guide member (200) is arranged on the top of the ship outer plate (600).

6. The ship according to claim 5, characterized in that The flow guiding member (200) and the flow limiting member (300) are both located within the plane of the outer wall of the ship outer plate (600).

Images