Floating ball device for inhibiting evaporation, preparation method and water surface evaporation inhibiting system

Abstract

The invention relates to the technical field of water resource protection and water saving, and discloses a floating ball device for inhibiting evaporation, a preparation method and a water surface evaporation inhibiting system. According to the floating ball device for inhibiting evaporation, the anti-rotation structure is arranged, the rotation resistance between the adjacent floating balls is increased, and the floating ball array is not prone to relatively rotating and displacing under the external force action of wind, waves and the like, so that the overall compactness and continuity of a covering layer are maintained, water surface gaps formed by rotation and separation of the floating balls are reduced, and the long-term actual covering rate is increased. By arranging the anti-overturning structure at the bottom of the stabilizing part, the gravity center of the floating ball is lowered, and on the premise that manufacturing materials are not increased, the drainage volume after the floating ball enters water is reduced, the waterline depth of the ball body is increased to the maximum extent, and therefore the static stability and the dynamic recovery capacity of the device are greatly improved. Under the disturbance of stormy waves, the anti-overturning structure can provide enough restoring torque, so that the floating ball quickly returns after inclining, and the situation that the evaporation suppression function is weakened due to the fact that the upper covering part is soaked in water due to continuous rolling is avoided.

Description

Technical Field

[0001] This invention relates to the field of water conservation technology for water resource protection, specifically to a float device for suppressing evaporation, a preparation method thereof, and a water surface evaporation suppression system. Background Technology

[0002] Reservoirs, as water storage facilities, play a crucial role in water resource allocation and storage. However, water surface evaporation is one of the main pathways for water resource loss from reservoirs, especially in arid and semi-arid regions where water dissipation due to evaporation is particularly significant. Therefore, controlling water surface evaporation and improving water resource utilization efficiency have become important issues in the field of water resource management.

[0003] To reduce water surface evaporation losses, physical covering methods are commonly used, which involve deploying floating devices on the reservoir surface to reduce evaporation by isolating the water from the air. This method has advantages such as good stability, simple operation, and high environmental compatibility, making it one of the most widely used and reliable anti-evaporation technologies. Traditional floating devices are mostly hollow, smooth spheres made of polyethylene material. Their simple structure, ease of production and deployment, and resistance to stacking in water make them practical and economical.

[0004] However, in actual use, its structure is usually uniform in mass and has a high center of gravity, resulting in limited water surface coverage. Furthermore, it is prone to tumbling and getting wet under the action of wind and waves, thus reducing its evaporation suppression effect. Summary of the Invention

[0005] This invention provides a floating ball device for suppressing evaporation, a preparation method, and a water surface evaporation suppression system to solve the problems of limited water surface coverage, easy rolling and water accumulation, and low evaporation suppression effect of existing hollow smooth spheres during use.

[0006] In a first aspect, the present invention provides a float device for suppressing evaporation, comprising a shell. The shell is a hollow spherical object for floating on the water surface. The shell is divided into an upper covering part and a lower stabilizing part along its maximum circumferential line. The stabilizing part is provided with an anti-rotation structure and an anti-overturning structure. The anti-rotation structure is arranged close to the maximum circumferential line to increase the rotational resistance between adjacent floats. The anti-overturning structure is distributed at the bottom of the stabilizing part to lower the center of gravity, reduce the drainage volume when the float enters the water, increase the waterline depth, and provide an anti-overturning restoring torque.

[0007] Beneficial effects: By incorporating an anti-rotation structure close to the maximum circumferential line of the shell, the rotational resistance between adjacent floats is effectively increased. This prevents the float array from easily rotating or shifting relative to each other under the influence of external forces such as wind and waves, thus maintaining the overall density and continuity of the covering layer, reducing water surface gaps caused by float rotation and separation, and improving the long-term actual coverage rate. Furthermore, by setting an anti-overturning structure at the bottom of the stabilizing section, the overall center of gravity of the floats is lowered, reducing the drainage volume when the floats enter the water. Without increasing the amount of material used in manufacturing, the waterline depth of the floats is maximized, thereby significantly improving the static stability and dynamic recovery capability of the device. Under wind and wave disturbances, this anti-overturning structure can provide sufficient restoring torque, allowing the floats to quickly return to their upright position after tilting, preventing continuous rolling that could lead to water immersion in the upper covering section and weaken the evaporation suppression function. In addition, the anti-rotation structure mainly suppresses the relative horizontal movement of the floats and maintains the shape of the coverage array; the anti-overturning structure provides a vertical stabilizing moment to prevent the floats from becoming unstable. The two work together to enable the floats to maintain their predetermined attitude and relative position in complex water environments, greatly reducing the performance degradation caused by wind and waves.

[0008] In one alternative embodiment, the anti-rotation structure includes a plurality of protrusions arranged around the maximum circumferential line.

[0009] Beneficial Effects: By employing multiple protrusions arranged around the maximum circumferential line as the anti-rotation structure, when multiple buoy devices are closely laid out on the water surface, the protrusions around the maximum circumferential line (i.e., the widest part of the sphere) on each buoy device will contact, abut, or even slightly interlock with each other, forming multi-point, distributed, and continuous mechanical interference between adjacent buoys. When wind and waves attempt to drive a buoy to rotate around its vertical axis, its protrusions will experience direct resistance from the protrusions of the surrounding buoys, thus rapidly transforming the rotational tendency of a single buoy into the coordinated resistance of the entire buoy array, effectively preventing the individual rotation of the buoys. Simultaneously, by arranging multiple protrusions in a surrounding manner, the anti-rotation capability of the buoys in all directions within the horizontal plane tends to be uniform. This couples the originally independent, potentially relatively sliding, smooth spheres into an integral covering layer with internal mechanical interlocking and linkage effects. Under wind loads, the covering layer can more evenly distribute and transfer stress, with multiple buoys collectively resisting the pushing and torsion of wind through the interaction between the protrusions, thereby enhancing the overall covering system's ability to resist large-area wind disturbances.

[0010] In one alternative embodiment, the protrusions are hemispherical in shape and are arranged at intervals.

[0011] Beneficial effects: By designing the protrusions as hemispherical structures, the protrusion surfaces become smooth, continuous curved surfaces. When the protrusions of adjacent floats come into contact and abut against each other under the action of wind and waves, the contact form is a small-area curved surface contact or point contact. Compared with prismatic or sheet-like protrusions, this can significantly disperse local contact stress, avoid plastic deformation, cracking, or wear at the root of the protrusion due to stress concentration, and enhance the fatigue strength and reliability of the protrusion structure itself. At the same time, by arranging multiple protrusions at intervals, when the float devices are densely packed, they form intermittent, multi-point contact and engagement with the protrusions of several adjacent float devices. When the water surface fluctuates or is subjected to uneven loads, the float array can be fine-tuned by slight slippage or re-matching of the protrusion contact points, avoiding the overall stiffness, fragility, or tearing of the cover layer that may occur with rigid connections.

[0012] In one alternative embodiment, the anti-overturning structure includes at least one recessed cavity formed from the surface of the stabilizing portion toward the inside of the housing.

[0013] Beneficial effects: By directly forming an inward concave cavity in the stabilizing part of the shell, the bottom mass of the stabilizing part can be increased, lowering the center of gravity (i.e., the material mass accumulated in the concave area is greater than the material mass at the same position on a smooth arc). This eliminates the need for additional external counterweights or complex structures, resulting in high stability of the device. Simultaneously, the concave cavity reduces the actual projected area and flatness of the stabilizing part in contact with the water. When the float tilts slightly, water can enter or exit the concave area more quickly, reducing the adsorption effect of water on the bottom of the float. This results in less viscous resistance to the float's recovery after disturbance, allowing it to correct its posture more quickly and effortlessly, thus improving dynamic response capabilities.

[0014] In one alternative embodiment, the concave cavity is provided in multiple ways, and the multiple concave cavities are symmetrically arranged along the central axis of the shell, with the concave depth gradually increasing from the top boundary downwards.

[0015] Beneficial effects: By employing multiple concave cavities symmetrically arranged along the central axis, the increased local mass from the concave structure is centrally symmetrically distributed. This ensures that the float's center of gravity is strictly located or infinitely close to its geometric central axis, contributing to the float's stable upright posture when at rest. It avoids the unbalanced torque phenomenon that occurs when the concave cavities are placed on only one side of the shell bottom. This allows the float to obtain a similar magnitude and effective gravitational restoring torque when tilted around any horizontal axis. Regardless of the direction of the disturbance, the symmetrically configured anti-overturning structure works synergistically to provide balanced and powerful restoring force, enhancing its adaptability and reliability in complex and variable real-world environments. Simultaneously, it makes the float shell structure and the distribution of fluid pressure it experiences in water more symmetrical, helping to evenly distribute structural stress caused by internal water pressure, external impacts, or long-term fluctuating loads. This avoids stress concentration in localized areas (such as the shell opposite a single concave cavity) caused by uneven mass distribution, thereby extending the device's service life and preventing material fatigue or deformation caused by long-term asymmetrical stress. Furthermore, by setting the concave depth of the concave cavity to gradually increase from the top boundary downwards, the center of gravity of the main ball can be lowered, ensuring that when the ball is tilted and densely packed, the single float device automatically enters the water through the concave cavity.

[0016] In one alternative embodiment, the float device for suppressing evaporation further includes a stabilizing wing, centrally mounted on the bottom surface of the stabilizing part, the stabilizing wing being used to increase the counterweight of the stabilizing part.

[0017] Beneficial effects: By adding stabilizing wing to the bottom surface of the stabilizing part as a counterweight component, the waterline depth of the float device can be increased, enabling the float device to obtain a greater gravity restoring torque. When facing sudden strong gusts, large waves and other extreme disturbances, this design can provide greater restoring force, effectively preventing the device from irreversibly overturning or continuously rolling, and enhancing the device's anti-overturning ability.

[0018] In one alternative embodiment, the stabilizing wing has a top wall that fits against the bottom surface of the stabilizing part, and an arcuate bottom wall that protrudes relative to the top wall toward a side away from the stabilizing part.

[0019] Beneficial effects: By affixing the top wall of the stabilizing fin to the bottom surface of the stabilizing section, a continuous surface contact is formed, enhancing the strength of the connection area and preventing the risk of cracking or breakage due to stress concentration under long-term wind and wave loads. Simultaneously, when the buoy is impacted by waves or tends to roll, the force on the stabilizing fin can be evenly transmitted to the main shell of the buoy through the entire contact surface, avoiding localized overload and improving the fatigue resistance of the overall structure. Furthermore, by providing the stabilizing fin with an arc-shaped bottom wall, forming a streamlined design, it helps reduce tail eddies, lowering irregular vibrations or noise caused by eddy current shedding, resulting in a more stable buoy movement in the water and contributing to maintaining the overall stability of the cover layer.

[0020] In a second aspect, the present invention also provides a method for preparing a float device for suppressing evaporation, which is used to prepare the float device for suppressing evaporation provided in the first aspect, comprising the following steps: providing raw materials for forming a shell; processing the raw materials into a preform; placing the preform into a blow molding die, wherein the cavity of the blow molding die has a negative structure corresponding to the anti-rotation structure and the anti-overturning structure; and performing blow molding to integrally form the anti-rotation structure, the anti-overturning structure and the shell.

[0021] Beneficial effects: By directly setting negative-shape structures corresponding to anti-rotation structures (such as protrusions) and anti-overturning structures (such as concave cavities) within the cavity of the blow molding mold, the main body of the shell and all functional structures are simultaneously and seamlessly molded into a single process during blow molding. This eliminates the need for secondary processing steps, such as manufacturing stable components separately and then connecting them to the shell through welding, bonding, or mechanical assembly. It also eliminates the additional labor time and connection material costs caused by secondary processing and completely avoids inherent defects such as weak strength, poor sealing, easy corrosion, or stress concentration that may exist at the connection interface (such as welds, adhesive layers).

[0022] In one alternative embodiment, the raw materials include polyethylene, high-density polyethylene, fillers, antioxidant additives, and ultraviolet absorbers.

[0023] Thirdly, the present invention also provides a water surface evaporation suppression system, comprising an evaporation suppression float device and a laying device. The evaporation suppression float device is the evaporation suppression float device provided in the first aspect or the evaporation suppression float device obtained by the preparation method of the evaporation suppression float device provided in the second aspect, wherein multiple evaporation suppression float devices are provided; the laying device is used to distribute multiple evaporation suppression float devices on the target water surface, so that they are densely distributed in a manner that the anti-rotation structure cooperates with each other.

[0024] Beneficial effects: By integrating the float devices and ensuring that they are densely distributed in a manner that cooperates with each other in an anti-rotation structure, a floating cover layer is formed, which improves the overall stability of the system. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the specific embodiments of the present invention, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a front view of the float device for suppressing evaporation provided in an embodiment of the present invention; Figure 2 This is a side view of the float device for suppressing evaporation provided in an embodiment of the present invention; Figure 3 A bottom view of the float device for suppressing evaporation provided in an embodiment of the present invention; Figure 4 This is a top view of the float device for suppressing evaporation provided in an embodiment of the present invention; Figure 5 A perspective view of the float device for suppressing evaporation provided in an embodiment of the present invention; Figure 6 This is a partially enlarged schematic diagram of the anti-rotation structure in the float device for suppressing evaporation provided in an embodiment of the present invention; Figure 7 This is a partially enlarged schematic diagram of the anti-overturning structure in the float device for suppressing evaporation provided in an embodiment of the present invention; Figure 8 This is a longitudinal cross-sectional schematic diagram of the float device for suppressing evaporation provided in an embodiment of the present invention; Figure 9 A schematic diagram of the trajectory of the float device for suppressing evaporation provided in an embodiment of the present invention rotating along the K direction; Figure 10 A schematic diagram of the trajectory of the float device for suppressing evaporation provided in the embodiment of the present invention when a stabilizing fin is provided; Figure 11 This is a schematic flowchart illustrating the preparation method of the float device for suppressing evaporation according to an embodiment of the present invention; Figure 12 This is a schematic diagram showing the dense arrangement of multiple float devices for suppressing evaporation in the water surface evaporation suppression system provided in an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures: 1. Shell; 101. Covering part; 102. Stabilizing part; 103. Anti-rotation structure; 104. Anti-overturning structure; 2. Stabilizing wing; A. Maximum circumferential line; B. Parting line; C. Water surface; K. Rotation direction. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] The following is combined with Figures 1 to 12 The following describes embodiments of the present invention.

[0030] According to an embodiment of the present invention, in one aspect, a float device for suppressing evaporation is provided, such as... Figures 1 to 4 As shown, it includes a housing 1.

[0031] Shell 1 is a hollow sphere, used to float on the water surface C.

[0032] like Figures 1 to 5 As shown, the shell 1 is divided into an upper covering part 101 and a lower stabilizing part 102 along its maximum circumferential line A. The stabilizing part 102 is provided with an anti-rotation structure 103 and an anti-overturning structure 104. The anti-rotation structure 103 is arranged close to the maximum circumferential line A to increase the rotational resistance between adjacent floats. The anti-overturning structure 104 is distributed at the bottom of the stabilizing part 102 to lower the center of gravity and provide an anti-overturning restoring torque.

[0033] This configuration, by setting an anti-rotation structure 103 close to the maximum circumferential line A of the shell 1, effectively increases the rotational resistance between adjacent floats, making it less likely for the float array to rotate or shift relative to each other under the action of external forces such as wind and waves. This maintains the overall density and continuity of the cover layer, reduces the gaps on the water surface C caused by the rotation and separation of the floats, and improves the long-term actual coverage rate.

[0034] Furthermore, by setting an anti-tipping structure 104 at the bottom of the stabilizing part 102, the overall center of gravity of the float is lowered, reducing the drainage volume when the float enters the water. Without increasing the amount of material used in its manufacture, the waterline depth of the float is maximized, thereby significantly improving the static stability and dynamic recovery capability of the device. Under wind and wave disturbances, the anti-tipping structure 104 can provide sufficient restoring torque, allowing the float to quickly return to its upright position after tilting, preventing continuous rolling that could cause the upper cover part 101 to become submerged and weaken the evaporation suppression function.

[0035] In addition, the anti-rotation structure 103 mainly suppresses the relative movement of the float in the horizontal direction and maintains the shape of the coverage array; the anti-overturning structure 104 provides a vertical stabilizing torque to prevent the float from becoming unstable. The two work together to enable the float to maintain its predetermined attitude and relative position in the complex water surface environment C, and greatly reduce the performance degradation caused by wind and waves.

[0036] It can be noted that the surface of the covering part 101 is a smooth surface.

[0037] In one embodiment, such as Figures 1 to 6 and Figure 8 As shown, the anti-rotation structure 103 includes a plurality of protrusions arranged around the maximum circumferential line A.

[0038] With this configuration, the anti-rotation structure 103 is specifically designed as multiple protrusions arranged around the maximum circumferential line A. When multiple float devices are closely laid on the water surface C, the protrusions on each float device that are arranged around the maximum circumferential line A (i.e., the widest part of the sphere) will contact, abut, or even slightly fit together, forming multi-point, distributed, and continuous mechanical interference between adjacent floats. When wind and waves attempt to drive a float to rotate around its vertical axis, its protrusions will be subjected to direct resistance from the protrusions of the surrounding floats, thereby quickly transforming the rotational tendency of a single float into the coordinated resistance of the entire float array, effectively preventing the individual rotation of the floats.

[0039] Meanwhile, by setting multiple protrusions in a surrounding manner, the anti-rotation ability of the floats in all directions in the horizontal plane tends to be uniform. The originally independent and potentially relatively sliding smooth spheres are coupled into an integral covering layer with internal mechanical interlocking and linkage effects. Under the action of wind load, the covering layer can more evenly distribute and transmit stress. Multiple floats resist the push and torsion of wind through the interaction between the protrusions, thereby improving the ability of the entire covering system to resist large-area wind disturbances.

[0040] Preferably, the multiple protrusions are hemispherical in shape and are arranged at intervals.

[0041] This design, by setting the protrusions to a hemispherical structure, makes the surface of the protrusions a smooth and continuous curved surface. When the protrusions of adjacent floats come into contact with each other under the action of wind and waves, the contact form is a small-area curved surface contact or point contact. Compared with prismatic or sheet-like protrusions, it can significantly disperse local contact stress, avoid plastic deformation, cracking or wear at the root of the protrusion caused by stress concentration, and enhance the fatigue strength and reliability of the protrusion structure itself.

[0042] Meanwhile, by arranging multiple protrusions at intervals, when the float devices are densely packed, they form intermittent, multi-point contact and engagement with the protrusions of several adjacent float devices. When the water surface C fluctuates or is subjected to uneven loads, the float array can be finely adjusted by slight slippage or re-matching of the protrusion contact points, avoiding the overall stiffness, fragility, or tearing of the cover layer that may be caused by rigid connections.

[0043] It can be noted that the ratio between the diameter of the protrusion and the diameter of the shell 1 is 0.02 to 0.1.

[0044] It can be noted that the contact surface between the protrusion and the shell 1 is chamfered.

[0045] Preferably, such as Figure 6 As shown, 90° < α1, α2 < 180°.

[0046] The spacing between the protrusions is controlled at 0.3 to 0.8 times the diameter of the shell 1, which will not affect the natural contact of the main sphere, and at the same time, will not reduce the total coverage when the spheres are densely packed.

[0047] In one embodiment, such as Figure 1 To the diagram, Figure 7 and Figure 8 As shown, the anti-overturning structure 104 includes at least one concave cavity formed by recessing from the surface of the stabilizing part 102 toward the inside of the housing 1.

[0048] With this configuration, by directly forming an inward concave cavity in the stabilizing part 102 of the housing 1, the bottom mass of the stabilizing part 102 can be increased, the center of gravity can be lowered (i.e., the material mass accumulated in the concave part is greater than the material mass at the same position on a smooth arc), and the waterline depth of the device can be increased. There is no need to add external counterweights or complex structures, so that the device has high stability.

[0049] Meanwhile, the concave cavity reduces the actual projected area and flatness of the stabilizing part 102 in contact with the water. When the float tilts slightly, the water flow can enter or exit the concave area more quickly, reducing the adsorption effect of water on the bottom of the float. This makes the viscous resistance of water to the float's recovery movement less after it is disturbed, which helps it to correct its posture more quickly and effortlessly, thus improving its dynamic response capability.

[0050] It can be explained that there are multiple concave cavities, which are symmetrically arranged along the central axis of the shell 1.

[0051] This configuration, employing multiple concave cavities symmetrically arranged along the central axis, ensures that the local mass added by the concave structure is centrally symmetrically distributed. This guarantees that the center of gravity of the float is strictly located or infinitely close to its geometric central axis, which helps the float maintain a stable upright position when at rest. It avoids the phenomenon of unbalanced torque caused by placing the concave cavities on only one side of the bottom of the shell 1. This allows the float to obtain a gravity restoring torque of similar magnitude and effective direction when tilting around any horizontal axis. Regardless of the direction of the disturbance, the symmetrically configured anti-overturning structure 104 can work together to provide a balanced and powerful restoring force, enhancing its adaptability and reliability in complex and variable real-world environments.

[0052] At the same time, it makes the structure of the float shell 1 and the distribution of fluid pressure it experiences in the water more symmetrical, which helps to evenly disperse the structural stress caused by internal water pressure, external impact or long-term fluctuating load, avoid stress concentration in local areas (such as the shell 1 on the other side opposite to a single concave cavity) caused by uneven mass distribution, thereby extending the service life of the device and preventing material fatigue or deformation caused by long-term asymmetrical stress.

[0053] It should be noted that the shape of the concave cavity is not specifically limited.

[0054] Preferably, an irregular bowl shape or ellipsoidal shape is adopted, and the contact surface between the concave cavity and the shell 1 is chamfered to avoid stress concentration.

[0055] Furthermore, such as Figure 7 As shown, the chamfer is 90° < β1, β2 < 180°.

[0056] In addition, it should be noted that the diameter of the opening end of the concave cavity is related to the number of concave cavities.

[0057] For example, when there are 4 concave cavities, the ratio of the diameter of the opening end of the concave cavity to the diameter of the shell 1 is 1 / 10 to 1 / 3, and the ratio of the depth of the concave cavity to the diameter of the shell 1 is 1 / 20 to 1 / 10.

[0058] Furthermore, the bottom boundary of the concave cavity is close to the bottom surface of the housing 1, while the top boundary of the concave cavity is arranged close to the maximum circumferential line A.

[0059] The concave depth gradually increases from the top boundary downwards, and the longitudinal tangent of the concave is egg-shaped, which causes the center of gravity of the main ball to shift downwards, ensuring that when the ball is tilted and densely packed, the single float device automatically enters the water through the concave cavity.

[0060] In one embodiment, such as Figure 1 , Figure 2 , Figure 5 and Figure 10 As shown, the float device for suppressing evaporation also includes a stabilizing wing 2, which is centrally mounted on the bottom surface of the stabilizing part 102. The stabilizing wing 2 is used to increase the counterweight of the stabilizing part 102.

[0061] By adding a stabilizing wing 2 to the bottom surface of the stabilizing part 102 as a counterweight, the waterline depth of the float device can be increased, allowing the float device to obtain a greater gravity restoring torque. When facing sudden strong gusts, large waves and other extreme disturbances, this design can provide a greater restoring force, effectively preventing the device from irreversibly overturning or continuously rolling, and enhancing the device's anti-overturning ability.

[0062] It should be noted that the shape of the stabilizer wing 2 is not specifically limited.

[0063] In one embodiment, the stabilizing wing 2 has a top wall that fits against the bottom surface of the stabilizing part 102, and an arc-shaped bottom wall that protrudes toward the side opposite to the stabilizing part 102 relative to the top wall.

[0064] This configuration, by attaching the top wall of the stabilizer wing 2 to the bottom surface of the stabilizer 102, forms a continuous surface contact, enhancing the strength of the connection area and avoiding the risk of cracking or breaking under long-term wind and wave loads due to stress concentration.

[0065] Meanwhile, when the buoy is impacted by waves or tends to roll, the force on the stabilizing wing 2 can be evenly transmitted to the main shell 1 of the buoy through the entire bonding surface, avoiding local overload and improving the fatigue resistance of the overall structure.

[0066] In addition, by providing an arc-shaped bottom wall for the stabilizer wing 2 to form a streamlined configuration, it helps to reduce tail eddies and reduce irregular vibrations or noise caused by eddies falling off, making the movement of the buoy in the water more stable and helping to maintain the overall stability of the cover layer.

[0067] Of course, in other alternative embodiments, the stabilizing wing 2 can also be a flat, rectangular, hollow structure with chamfered corners, wherein the tail of the stabilizing wing 2 extends vertically a certain distance to ensure that the floats do not stack when tilted and laid, and its lateral extension distance is less than the diameter of the shell 1.

[0068] During use, the float device for suppressing evaporation, without a stabilizing fin 2, will move along... Figure 9 As shown, the K-axis rotates, while the stabilizing fin 2 of the float device for suppressing evaporation will move along... Figure 10 The rotation is shown in direction K.

[0069] According to an embodiment of the present invention, a second aspect also provides a method for preparing a float device for suppressing evaporation, used to prepare the float device for suppressing evaporation provided in the first aspect.

[0070] like Figure 11 As shown, the preparation method of the float device for suppressing evaporation includes the following steps: providing raw materials for forming the shell 1; processing the raw materials into a preform; placing the preform into a blow molding die, wherein the cavity of the blow molding die has a negative structure corresponding to the anti-rotation structure 103 and the anti-overturning structure 104; and performing blow molding to integrally form the anti-rotation structure 103, the anti-overturning structure 104 and the shell 1.

[0071] This configuration, by directly setting negative-shaped structures corresponding to the anti-rotation structure 103 (such as a protrusion) and the anti-overturning structure 104 (such as a concave cavity) within the cavity of the blow molding mold, allows the main body of the shell 1 and all functional structures to be simultaneously and seamlessly molded into a single process during blow molding. This eliminates the need for secondary processing steps, such as separately manufacturing the stabilizing part 102 and then connecting it to the shell 1 through welding, bonding, or mechanical assembly. It also eliminates the additional time and connection material costs caused by secondary processing and completely avoids inherent defects such as weak strength, poor sealing, easy corrosion, or stress concentration that may exist at the connection interface (such as weld seam or adhesive layer).

[0072] In the process of processing the preform, the raw material is plasticized and extruded to form a hollow preform.

[0073] It can be explained that the blow molding mold has a left and right split structure. When installing the preform, the preform is placed in the split mold cavity of the blow molding mold.

[0074] Further, after the mold is closed, blow molding is performed.

[0075] It can be noted that the mold cavity is provided with a negative shape structure that matches the anti-rotation structure 103 and the anti-overturning structure 104.

[0076] It can be explained that during the mold closing process, the mold closing line B cannot penetrate the protrusion and the concave cavity, and the temperature of the mold closing line B area is controlled separately to improve the crystallinity of the material.

[0077] Furthermore, the stabilizer wing 2 extends through the parting line B.

[0078] It can be noted that the preparation method of the float device for suppressing evaporation also includes forming a stabilizing wing 2.

[0079] In this process, after the shell 1 is cooled and formed, a cutting die is used to cut and extrude the excess material adhering between the shells 1 to complete the trimming of the flash and form the stabilizing wing 2.

[0080] This setup makes full use of surplus materials, thereby reducing costs.

[0081] It can be noted that the raw materials include polyethylene and high-density polyethylene.

[0082] This configuration, by blending polyethylene with high-density polyethylene, effectively regulates the melt flowability and crystallization behavior of the raw materials.

[0083] Specifically, by adding high-density polyethylene, the processing fluidity of the blend system is improved, enabling it to better fill the anti-rotation protrusions, concave cavities, and other fine negative-shape structures in the mold cavity during blow molding. This ensures that these functional features are clearly and completely formed, reducing defects such as material shortages and deformation.

[0084] Meanwhile, the blend system formed by high-density polyethylene can significantly improve the rigidity and toughness of the material without significantly sacrificing flexibility, so that the molded shell 1 has both good compressive strength to resist water pressure and stacking load, and excellent impact strength to withstand wind and wave impact and accidental collision.

[0085] Polyethylene is used as the main material, and high-density polyethylene is used as an auxiliary material to improve compressive and impact strength.

[0086] Furthermore, the raw materials also include fillers and antioxidant additives.

[0087] The filler used is carbon black or inorganic oxide.

[0088] Preferably, carbon black filler is used.

[0089] This design significantly enhances and reinforces the polymer matrix, effectively increasing the tensile strength and modulus of the material. This allows the float shell 1 to better withstand tensile loads caused by internal air pressure, external water pressure, and installation stress. It also greatly improves the material's tear resistance and abrasion resistance. Consequently, during long-term use, the surface of the float (especially the raised contact areas) is more resistant to damage caused by friction and scratching, effectively preventing the generation and propagation of cracks. This ensures the long-term effectiveness of functional features such as the anti-rotation structure 103 and extends the overall service life.

[0090] Similarly, antioxidant additives use phenolic primary antioxidants or benzophenone-based ultraviolet absorbers.

[0091] Preferably, phenolic antioxidants are used.

[0092] This design effectively captures and neutralizes free radicals generated during processing and long-term use, significantly inhibiting thermal oxidative degradation of the material and preventing strength loss and embrittlement caused by molecular chain breakage. Combined with the absorption and scattering of ultraviolet light by carbon black filler, it greatly reduces photodamage caused by ultraviolet light reaching the polymer interior. The synergistic effect of these two components constructs a comprehensive anti-aging mechanism for the float material, from the surface to the interior, and from chemical to physical processes, significantly delaying aging processes such as discoloration, powdering, and cracking.

[0093] It can be noted that the wall thickness of the float device is between 0.8mm and 1.0mm.

[0094] In the above embodiments, the raw materials for the preparation method of the float device for suppressing evaporation are improved by adding high-density polyethylene auxiliary materials, carbon black and antioxidant additives to the polyethylene main material, which significantly improves the weather resistance of the float.

[0095] Specifically, the weight content of polyethylene as the main material is higher than 50%, the weight content of high-density polyethylene auxiliary material is controlled between 10% and 40%, the weight content of filler masterbatch such as carbon black is controlled between 1% and 5%, and the weight content of antioxidant additives is lower than 0.3%.

[0096] In one embodiment, the raw materials also include ultraviolet absorbers, such as benzophenone compounds or benzotriazole compounds. Their main function is to convert high-energy photons into heat energy or release low-energy radiation, preventing ultraviolet rays from causing polymer chain breakage or pigment fading; when combined with the main antioxidant, they form a dual protection of "thermal oxidation + photo-oxidation".

[0097] Preferably, all raw materials are accurately weighed and then put into a high-speed mixer for dry mixing at room temperature for about 5-8 minutes until the material has a uniform color. The mixed material is then fed into a single-screw extruder for melt plasticizing. The plasticizing process uses segmented precise temperature control: the temperature in the feeding section is controlled at 160℃-170℃, the melting section at 170℃-190℃, the homogenization section at 180℃-200℃, and the temperature rises to 190℃-210℃ at the die head to ensure that the material is fully melted, homogenized, and has good fluidity. The plasticized melt is extruded through the die head to form a tubular preform. After the preform reaches the predetermined length, the die closes quickly under a pressure of 10MPa-20MPa to ensure a seal. Immediately after the die closes, the preform is sealed in the die cavity, and compressed air at 0.3MPa-0.8MPa is introduced for inflation, causing the preform to adhere tightly to the inner wall of the die. The blowing time can be controlled between 5 and 15 seconds. During the molding process, while maintaining blow molding pressure, rapid cooling and shaping are achieved through cooling water channels inside the mold (water temperature is typically controlled at 10℃-15℃). The cooling time needs to be determined based on the product wall thickness, generally ranging from 20 to 60 seconds. After the product has fully cooled and shaped, the internal pressure is released and the mold is opened, allowing the product to be removed by a robot or manually. The molded float requires post-processing, including cutting and trimming to form the stabilizing wing 2 structure, and undergoes critical airtightness testing (e.g., holding pressure at 0.2MPa for 30 seconds without leakage) and wall thickness sampling. Throughout the process, it is crucial to control the melt temperature (window approximately 190℃±10℃), mold closing accuracy, and cooling uniformity to prevent defects such as preform sagging, obvious parting line B, or uneven wall thickness, ensuring the production of hollow float products with uniform wall thickness, complete structure, and excellent sealing performance.

[0098] According to an embodiment of the present invention, in a third aspect, the present invention also provides a water surface C evaporation suppression system, including a float device for suppressing evaporation and a laying device.

[0099] The evaporation suppression float device is either the evaporation suppression float device provided in the first aspect or the evaporation suppression float device obtained by the preparation method of the evaporation suppression float device provided in the second aspect.

[0100] Specifically, such as Figure 12 As shown, multiple evaporation suppression float devices are provided; the laying device is used to distribute multiple evaporation suppression float devices on the target water surface C, so that they are densely distributed in a manner that the anti-rotation structure 103 cooperates with each other.

[0101] This configuration integrates the float devices and ensures that the float devices are densely distributed in a manner that cooperates with each other using the anti-rotation structure 103, forming a floating cover layer and improving the overall stability of the system.

[0102] In the above embodiments, the water surface C evaporation suppression system is installed by using a cable conveyor to carry the container and tilt it at a fixed point for laying the float device for evaporation suppression.

[0103] The cable conveyor spans the target water body and moves the box filled with floats to the target position in the target water body by rotating the toothed structure driven by the motor. The floats are densely distributed in the water body by tilting once or multiple times.

[0104] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A float device for suppressing evaporation, characterized in that, include: The shell (1) is a hollow sphere for floating on the water surface (C). The shell (1) is divided into an upper covering part (101) and a lower stabilizing part (102) along its maximum circumferential line (A). The stabilizing part (102) is provided with an anti-rotation structure (103) and an anti-overturning structure (104). The anti-rotation structure (103) is arranged close to the maximum circumferential line (A) to increase the rotational resistance between adjacent floats. The anti-overturning structure (104) is distributed at the bottom of the stabilizing part (102) to lower the center of gravity, reduce the drainage volume when the float enters the water, increase the waterline depth, and provide an anti-overturning restoring torque.

2. The float device for suppressing evaporation according to claim 1, characterized in that, The anti-rotation structure (103) includes a plurality of protrusions arranged around the maximum circumferential line (A).

3. The float device for suppressing evaporation according to claim 2, characterized in that, The multiple protrusions are hemispherical in shape and are arranged at intervals.

4. The float device for suppressing evaporation according to any one of claims 1-3, characterized in that, The anti-overturning structure (104) includes at least one concave cavity formed by recessing from the surface of the stabilizing part (102) toward the inside of the housing (1).

5. The float device for suppressing evaporation according to claim 4, characterized in that, The concave cavity is provided in multiple ways, and the multiple concave cavities are symmetrically arranged along the central axis of the shell (1), with the concave depth gradually increasing from the top boundary downwards.

6. The float device for suppressing evaporation according to any one of claims 1-3, characterized in that, It also includes a stabilizing wing (2), which is centrally mounted on the bottom surface of the stabilizing part (102), and the stabilizing wing (2) is used to increase the counterweight of the stabilizing part (102).

7. The float device for suppressing evaporation according to claim 6, characterized in that, The stabilizing wing (2) has a top wall that fits against the bottom surface of the stabilizing part (102) and an arc-shaped bottom wall that protrudes toward the side opposite to the stabilizing part (102) relative to the top wall.

8. A method for preparing a float device for suppressing evaporation, used to prepare the float device for suppressing evaporation according to any one of claims 1-7, characterized in that, Includes the following steps: Provide raw materials for forming the shell (1); The raw materials are processed into preforms; The preform is placed into the blow molding die, and the cavity of the blow molding die has a negative shape structure corresponding to the anti-rotation structure (103) and the anti-overturning structure (104); Blow molding is performed to integrally form the anti-rotation structure (103), the anti-overturning structure (104), and the shell (1).

9. The method for preparing the float device for suppressing evaporation according to claim 8, characterized in that, The raw materials include polyethylene, high-density polyethylene, fillers, antioxidant additives, and ultraviolet absorbers.

10. A water surface evaporation suppression system, characterized in that, include: The evaporation suppression float device is the evaporation suppression float device according to any one of claims 1 to 7 or the evaporation suppression float device obtained by the preparation method of the evaporation suppression float device according to claim 8 or 9, wherein the evaporation suppression float device is provided in multiple forms; A laying device is used to spread multiple of the said evaporation suppression float devices on the target water surface (C) so that they are densely distributed in a manner that the anti-rotation structure (103) cooperates with each other.

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