New type of high efficiency interception net suitable for protection of cold source disaster-causing materials in nuclear power plant

Abstract

The application belongs to the technical field of filtering devices, and discloses a novel high-efficiency intercepting net suitable for protecting a cold source disaster-causing object of a nuclear power plant, which comprises a supporting frame and a net body assembly connected to the supporting frame, wherein the net body assembly comprises a first net body and a second net body, the first net body comprises a plurality of base net ropes, the second net body is arranged in a laminated mode with the first net body, the second net body comprises a plurality of reinforcing net ropes, the tensile strength of the reinforcing net ropes is greater than that of the base net ropes, and the base net ropes and the reinforcing net ropes are respectively coated with an antifouling coating. The application can solve the technical problem that the intercepting net needs to be cleaned frequently.

Description

Technical Field

[0001] This application belongs to the field of filtration device technology, specifically relating to a new type of high-efficiency interception net suitable for the protection of cold source disaster-causing materials in nuclear power plants. Background Technology

[0002] Nuclear power plants rely on seawater for cooling. To prevent foreign objects or human intrusion into the water intake, a screen is typically installed at the intake. While the screen can block objects, prolonged immersion can lead to the growth of algae, shellfish, and other fouling organisms on its surface. This can cause blockages in the mesh, increase water flow resistance, and in severe cases, result in insufficient cooling. Therefore, frequent cleaning of the screen is necessary. Utility Model Content

[0003] The purpose of this application is to provide a new type of high-efficiency interception net applicable to the protection of cold source disaster-causing materials in nuclear power plants, which can solve the technical problem that the interception net in the prior art needs to be cleaned frequently.

[0004] To achieve the above objectives, this application provides a novel high-efficiency interception net suitable for protecting against hazardous materials from cold sources in nuclear power plants, comprising: a support frame; a net assembly connected to the support frame, the net assembly including a first net body and a second net body, the first net body including multiple basic net ropes; a second net body stacked on top of the first net body, the second net body including multiple reinforcing net ropes, the tensile strength of the reinforcing net ropes being greater than the tensile strength of the basic net ropes; and the basic net ropes and reinforcing net ropes being respectively covered with an antifouling coating.

[0005] In some embodiments, the antifouling coating is a natural self-polishing coating.

[0006] In some embodiments, the antifouling coating includes at least one of capsaicin-containing self-polishing coatings, capsaicin-derived self-polishing coatings, and indole-derived self-polishing coatings.

[0007] In some embodiments, the antifouling coating is a copper-containing leaching coating.

[0008] In some embodiments, the antifouling coating includes at least one of copper-containing self-polishing coatings and copper-containing composite coatings.

[0009] In some embodiments, the mesh count of the first mesh is greater than the mesh count of the second mesh.

[0010] In some embodiments, the novel high-efficiency interception net applicable to the protection of cold source disaster-causing materials in nuclear power plants further includes a first connector and a second connector, which are respectively connected to the net body assembly and the support frame, and the first connector and the second connector are detachably connected.

[0011] In some embodiments, the novel high-efficiency interception net for protection against cold source disasters in nuclear power plants further includes a third connector, which is connected to one of the net body assembly and the support frame and is detachably connected to the other.

[0012] In some embodiments, the braiding angle of the base rope and the braiding angle of the reinforcing rope are 10°-30°.

[0013] In some embodiments, the side length of the mesh openings of the first mesh body and the second mesh body is 4mm-50mm, the diameter of the base mesh rope is 0.5mm-8mm, and the diameter of the reinforcing mesh rope is 1mm-10mm.

[0014] In some embodiments, the mass of the second net body is less than 75% of the mass of a novel high-efficiency interception net applicable to the protection of cold source disasters in nuclear power plants.

[0015] In some embodiments, the base rope is made of at least one of polyester filament, polyethylene, and nylon filament.

[0016] In some embodiments, the reinforcing rope is made of at least one of aramid material, glass fiber, and ultra-high molecular weight polyethylene fiber.

[0017] The novel high-efficiency interception net for protecting nuclear power plant cold source disasters provided in this application has the following advantages: The support frame of the net assembly ensures the stability and reliability of the overall structure, thereby enabling the first and second nets to block large objects from entering the nuclear power plant's water intake, ensuring stable water intake. Simultaneously, the layering of the second and first nets enhances the overall strength of the net assembly and improves its impact resistance. Since the tensile strength of the reinforcing ropes in the second net is greater than that of the basic ropes in the first net, the impact resistance of the second net is greater than that of the first net, further improving the overall impact resistance of the net assembly. The second net can block foreign objects on the side of the first net furthest from the nuclear power plant's water intake, reducing contact between the first net and foreign objects, minimizing wear and tear on the first net, and extending the service life of the net assembly. By coating the base and reinforcing nets with an antifouling coating, the risk of marine organisms attaching to the first and second net bodies can be effectively reduced. This significantly reduces the risk of marine organisms clogging the mesh of the new high-efficiency interception net suitable for protecting against cold source hazards in nuclear power plants, reducing the biofouling rate by more than 70%, extending the maintenance cycle, and allowing seawater to flow steadily into the nuclear power plant from the inlet. This application solves the technical problem of the need for frequent cleaning of interception nets, and the new high-efficiency interception net suitable for protecting against cold source hazards in nuclear power plants has stronger impact resistance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of a novel high-efficiency interception network for the protection of cold source disaster-causing materials in nuclear power plants, provided in some embodiments of this application; Figure 2 A schematic cross-sectional view of the reinforcing rope provided in some embodiments of this application; Figure 3 A flowchart illustrating the fabrication process of a novel, highly efficient interception net for protecting nuclear power plant cold source disasters, provided in some embodiments of this application.

[0020] The following are the labeling elements in the figure: 100. A new type of high-efficiency interception net applicable to the protection of cold source disaster-causing materials in nuclear power plants; 10. Support frame; 20. Net assembly; 21. First net; 211. Basic net rope; 22. Second net; 221. Reinforcing net rope; 2211. Second strand; 23. Anti-fouling coating; 30. Binding point. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0025] This application provides a novel, highly efficient interception net for the protection of nuclear power plant cold source disaster-causing materials, capable of intercepting foreign objects at the water intake of a nuclear power plant.

[0026] Please refer to Figure 1 and Figure 2 A novel high-efficiency interception net 100, applicable to the protection against cold source hazards in nuclear power plants, includes a support frame 10 and a net assembly 20. The net assembly 20 is connected to the support frame 10 and includes a first net body 21 and a second net body 22. The first net body 21 includes multiple basic net ropes 211. The second net body 22 is stacked with the first net body 21 and includes multiple reinforcing net ropes 221. The tensile strength of the reinforcing net ropes 221 is greater than that of the basic net ropes 211. The basic net ropes 211 and the reinforcing net ropes 221 are respectively covered with an antifouling coating 23.

[0027] The support frame 10 can support the net assembly 20. Optionally, the support frame 10 can be a metal frame, which has high strength and is not easily damaged.

[0028] The first net body 21 and the second net body 22 can block foreign objects such as floating objects, marine life, and unmanned underwater vehicles (UUVs), effectively reducing the risk of foreign objects entering the water intake of the nuclear power plant, and effectively reducing the entry of particularly large objects into the water intake of the nuclear power plant.

[0029] The first net body 21 is woven from multiple basic net ropes 211, with each basic net rope 211 extending in one direction from one edge of the support frame 10 to the other edge. Optionally, each basic net rope 211 can be a separate rope, independent of each other, extending in one direction. Optionally, the multiple basic net ropes 211 can also be woven from a single rope, that is, a basic net rope 211 can be formed by extending one rope in one direction, and then extending it in another direction to form a second basic net rope 211, until the first net body 21 is woven.

[0030] The second net body 22 is woven from multiple reinforcing ropes 221, with each reinforcing rope 221 extending from one edge of the support frame 10 in one direction to the other edge of the support frame 10. Optionally, each reinforcing rope 221 can be a separate rope, independent of each other, extending in one direction. Optionally, the multiple reinforcing ropes 221 can also be woven from a single rope, that is, one rope can first extend in one direction to form a reinforcing rope 221, and then extend in another direction to form a second reinforcing rope 221, until the second net body 22 is woven.

[0031] The second net body 22 is stacked with the first net body 21, resulting in a larger thickness of the net assembly 20, which improves its strength and impact resistance. Furthermore, by setting the tensile strength of the reinforcing rope 221 to be greater than that of the base rope 211, the strength of the net assembly 20 can be further enhanced, thus further improving its impact resistance.

[0032] Optionally, the first mesh 21 and the second mesh 22 can be connected to the support frame 10 respectively, making the connection between the mesh assembly 20 and the support frame 10 more secure. Alternatively, the first mesh 21 can be connected to the second mesh 22, and the second mesh 22 can be connected to the support frame 10, with the first mesh 21 connected to the support frame 10 via the second mesh 22, which can reduce wear between the first mesh 21 and the support frame 10. Alternatively, the second mesh 22 can be connected to the first mesh 21, and the first mesh 21 can be connected to the support frame 10. This application does not limit the scope of this embodiment.

[0033] The antifouling coating 23 refers to the coating formed by the antifouling paint covering the reinforcing net rope 221 and the base net rope 211. The antifouling coating 23 can prevent marine organisms from attaching to the first net body 21 and the second net body 22 by means of self-polishing or killing organisms, thereby extending the service life of the new high-efficiency interception net 100 suitable for the protection of cold source disaster objects in nuclear power plants and reducing the maintenance frequency of the new high-efficiency interception net 100 suitable for the protection of cold source disaster objects in nuclear power plants.

[0034] In use, the second mesh 22 is placed on the side of the first mesh 21 furthest from the nuclear power plant's intake. When foreign objects approach the intake, the second mesh 22 blocks them and is impacted by the impact, while the first mesh 21 experiences less impact, reducing wear and tear. When the nuclear power plant draws water, seawater passes sequentially through the mesh openings of the second mesh 22 and the first mesh 21 into the intake.

[0035] The beneficial effects of this embodiment are as follows: The support frame 10 supports the net assembly 20 to ensure the stability and reliability of the overall structure, thereby effectively blocking objects from entering the nuclear power plant's water intake through the first net 21 and the second net 22, ensuring stable water intake for the nuclear power plant. Simultaneously, by layering the second net 22 with the first net 21, and by ensuring that the tensile strength of the reinforcing rope 221 in the second net 22 is greater than the tensile strength of the basic rope 211 in the first net 21, the overall strength of the net assembly 20 can be effectively guaranteed and enhanced, improving its impact resistance. Furthermore, during use, by positioning the second net 22 on the side of the first net 21 furthest from the nuclear power plant's water intake to block foreign objects, the contact between the first net 21 and foreign objects can be reduced, decreasing wear and tear on the first net 21 and extending the service life of the net assembly 20. By coating the base net rope 211 and reinforcing net rope 221 with an antifouling coating 23, the risk of marine organisms attaching to the first net body 21 and the second net body 22 can be effectively reduced. Compared with the net body without the antifouling coating 23, the biofouling rate is reduced by more than 70%, alleviating the problem of marine organisms clogging the mesh of the novel high-efficiency interception net 100 for protection against cold source disasters in nuclear power plants, and extending the maintenance cycle of the novel high-efficiency interception net 100 for protection against cold source disasters in nuclear power plants. The embodiments of this application can solve the technical problem of the interception net requiring frequent cleaning, and the novel high-efficiency interception net 100 for protection against cold source disasters in nuclear power plants has stronger impact resistance.

[0036] In some embodiments, the antifouling coating 23 is a natural self-polishing coating.

[0037] The natural self-polishing coating refers to a coating formed by covering the reinforcing rope 221 and the base rope 211 with a natural self-polishing antifouling coating. The natural self-polishing coating is a type of antifouling coating. Utilizing the controllable degradation, ion-enzyme response, or enzyme response characteristics of specific natural polymer materials (such as modified chitosan and alginate) in the seawater environment, the natural self-polishing coating in the antifouling coating 23 that is in contact with seawater can autonomously, slowly, and continuously detach from the antifouling coating 23, causing marine organisms attached to the antifouling coating 23 to detach from the net assembly 20.

[0038] The natural self-polishing coating can also release natural antibacterial factors to inhibit biofilm formation and prevent marine organisms such as algae from growing and reproducing on the net component 20.

[0039] The beneficial effects of this embodiment are as follows: Since the antifouling coating 23 is a natural self-polishing coating, the portion of the antifouling coating 23 in contact with seawater can detach from the antifouling coating 23, simultaneously causing marine organisms attached to the outer surface of the antifouling coating 23 to detach from the net assembly 20. The natural self-polishing coating also inhibits biofilm formation, preventing algae and other marine organisms from growing and reproducing on the net assembly 20, and preventing marine organisms from clogging the mesh openings of the first net 21 or the second net 22. Furthermore, the natural self-polishing coating causes less pollution to the marine environment.

[0040] In some embodiments, the antifouling coating 23 includes at least one of capsaicin-containing self-polishing coatings, capsaicin-derived self-polishing coatings, and indole-derived self-polishing coatings.

[0041] Self-polishing coatings containing capsaicin and those containing capsaicin derivatives can interfere with the attachment behavior of marine organisms such as barnacles, algae, and shellfish. Self-polishing coatings containing indole derivatives can remove algal biofilms.

[0042] Optionally, the antifouling coating 23 may include one of the following: a self-polishing coating containing capsaicin, a self-polishing coating containing capsaicin derivatives, or a self-polishing coating containing indole derivatives. Alternatively, the antifouling coating 23 may include multiple types of self-polishing coatings containing capsaicin, capsaicin derivatives, or indole derivatives. The antifouling coating 23 can effectively reduce the risk of various marine organisms attaching to the net assembly 20.

[0043] For example, antifouling coating 23 may include capsaicin-modified fluorosilicone resin coating.

[0044] In some embodiments, the antifouling coating 23 is a copper-containing leaching coating.

[0045] A copper-containing leaching coating refers to a coating formed by applying an antifouling paint capable of leaching copper ions onto reinforcing mesh rope 221 and base mesh rope 211. Optionally, the copper-containing leaching coating contains an acrylic polymer, and the smooth leaching of the antifouling paint is ensured through the hydrolysis or ion exchange of the acrylic polymer in seawater.

[0046] Copper-containing leaching coatings can slowly release copper ions to disrupt the cell membrane structure of larvae and adults of algae, shellfish, and other organisms, causing cell death or developmental arrest, thereby inhibiting the growth and attachment of marine organisms and causing them to detach from the net component 20, thus providing a long-lasting antifouling effect.

[0047] In some embodiments, the antifouling coating 23 includes at least one of copper-containing self-polishing coatings and copper-containing composite coatings.

[0048] Optionally, the antifouling coating 23 may include one of a copper-containing self-polishing coating or a copper-containing composite coating. Alternatively, the antifouling coating 23 may also include both a copper-containing self-polishing coating and a copper-containing composite coating.

[0049] Copper-containing self-polishing coatings refer to self-polishing antifouling coatings that can dissolve copper ions. Copper-containing self-polishing coatings can penetrate biological cell membrane structures and inhibit the growth and attachment of marine organisms. The copper-containing self-polishing coating in the antifouling coating 23 that is in contact with seawater can also autonomously, slowly, and continuously detach from the antifouling coating 23, causing the marine organisms attached to the antifouling coating 23 to detach from the net assembly 20.

[0050] In some embodiments, please refer to Figure 1 The mesh count of the first mesh body 21 is greater than that of the second mesh body 22. In other words, in the same area, the number of mesh openings in the first mesh body 21 is greater than that in the second mesh body 22, and the mesh area of ​​the second mesh body 22 is larger than that of the first mesh body 21.

[0051] The second mesh 22 is mainly used to improve the impact resistance of the mesh assembly 20. Generally, larger foreign objects have a greater impact force. The mesh area of ​​the second mesh 22 is larger than that of the first mesh 21. Therefore, the second mesh can not only block larger foreign objects and reduce the impact of larger foreign objects on the first mesh 21, but also reduce the resistance of the second mesh 22 to seawater, so that seawater can flow steadily through the second mesh 22 into the intake of the nuclear power plant.

[0052] In some embodiments, the novel high-efficiency interception net 100 for protection against cold source disasters in nuclear power plants further includes a first connector and a second connector, which are respectively connected to the net assembly 20 and the support frame 10, and the first connector and the second connector are detachably connected.

[0053] When the first connector and the second connector are connected together, the mesh assembly 20 is connected to the support frame 10, and the new high-efficiency interception mesh 100, suitable for the protection of cold source disaster-causing materials in nuclear power plants, can filter foreign objects. When the first connector and the second connector are disassembled, the mesh assembly 20 is separated from the support frame 10, which facilitates the maintenance of the mesh assembly 20 and the support frame 10.

[0054] Optionally, the first and second connectors can each be quick-connect rings, forming a chain-link structure, resulting in a relatively secure connection. Alternatively, the first and second connectors can each be a male and female snap-fit, forming a quick-release buckle structure, allowing for rapid assembly and disassembly.

[0055] Optionally, the first connector can be connected to the mesh assembly 20, and the second connector can be connected to the support frame 10. Alternatively, the first connector can also be connected to the support frame 10, and the second connector can be connected to the mesh assembly 20.

[0056] Optionally, the first connector and the second connector can be connected to the second mesh body 22 and the support frame 10 respectively, and the first mesh body 21 is connected to the second mesh body 22, which can reduce the wear between the first mesh body 21 and the first connector and the second connector.

[0057] Optionally, some of the first and second connectors can be connected to the second mesh 22 and the support frame 10 respectively, while other parts of the first and second connectors can be connected to the first mesh 21 and the support frame 10 respectively, making the connection between the mesh assembly 20 and the support frame 10 more secure.

[0058] The beneficial effects of this application embodiment are as follows: the first connector and the second connector are respectively connected to the net assembly 20 and the support frame 10, and the first connector and the second connector are detachably connected. By disassembling and assembling the first connector and the second connector, it is convenient to disassemble and assemble the net assembly 20 and the support frame 10, which can improve the maintenance efficiency of the new high-efficiency interception net 100 applicable to the protection of cold source disaster-causing materials in nuclear power plants.

[0059] In some embodiments, the novel high-efficiency interception net 100 for protection against cold source disasters in nuclear power plants further includes a third connector, which is connected to one of the net body assembly 20 and the support frame 10 and is detachably connected to the other.

[0060] Optionally, the third connector can be connected to the support frame 10, and the third connector is detachably connected to the net assembly 20 for easy replacement of the net assembly 20. Alternatively, the third connector can also be connected to the net assembly 20, and the third connector is detachably connected to the support frame 10.

[0061] Optionally, the third connector can be a clip, such as a stainless steel clip, which can be quickly connected to the support frame 10 or the mesh assembly 20.

[0062] In some embodiments, the support frame 10 is connected to the net assembly 20 by nylon cable ties or binding ropes.

[0063] In some embodiments, please refer to Figure 1 The connection point between the support frame 10 and the net assembly 20 is the binding point 30. There are multiple binding points 30, and the multiple binding points 30 are distributed at intervals along the extension direction of the edge of the support frame 10.

[0064] Optionally, the binding rope can be made of high-performance fiber rope such as ultra-high molecular weight polyethylene, which has good abrasion resistance. For example, the diameter of the binding rope is 3mm ± 0.2mm.

[0065] In some embodiments, the braiding angle of the base rope 211 and the braiding angle of the reinforcing rope 221 are 10°-30°.

[0066] Optionally, the weaving angle of the base net rope 211 can be 10°, 15°, 20° or 30°.

[0067] Optionally, the braiding angle of the reinforcing cord 221 can be 10°, 15°, 20° or 30°.

[0068] The braiding angle refers to the angle between the fiber or strand and the rope axis during the braiding process. Please refer to [reference needed]. Figure 2 The base netting 211 is woven from multiple first strands, and the reinforcing netting 221 is woven from multiple second strands 2211. The weaving angle of the base netting 211 is the angle between the first strand of the base netting 211 and the length direction of the base netting 211. The weaving angle of the reinforcing netting 221 is the angle between the second strand of the reinforcing netting 221 and the length direction of the reinforcing netting 221.

[0069] If the braiding angle of the base net rope 211 and the reinforcing net rope 221 is less than 10°, the structure of the base net rope 211 and the reinforcing net rope 221 is too tight, and their flexibility is poor. If the braiding angle of the base net rope 211 and the reinforcing net rope 221 is greater than 30°, the structure of the base net rope 211 and the reinforcing net rope 221 is too loose, and their tensile strength is poor. If the braiding angle of the base net rope 211 and the reinforcing net rope 221 is between 10° and 30°, the base net rope 211 and the reinforcing net rope 221 have good flexibility and high tensile strength, and the first net body 21 and the second net body 22 have strong impact resistance and are not easily damaged.

[0070] In some embodiments, the mesh side length of the first mesh body 21 and the mesh side length of the second mesh body 22 are 4mm-50mm.

[0071] Optionally, the mesh side length of the first mesh body 21 can be 4mm, 10mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, etc.

[0072] Optionally, the mesh side length of the second mesh body 22 can be 4mm, 10mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, etc.

[0073] In some embodiments, the mass of the second net body 22 is less than 75% of the mass of the novel high-efficiency interception net 100 applicable to the protection of cold source disaster-causing objects in nuclear power plants.

[0074] Optionally, the mass of the second mesh body 22 can be 75%, 65%, 60%, 50%, 40%, 30%, 20%, 10%, or 5% of the mass of the new high-efficiency interception net 100, which is suitable for the protection of cold source disasters in nuclear power plants.

[0075] In some embodiments, the mass of the second net body 22 is 20% to 60% of the mass of the novel high-efficiency interception net 100 applicable to the protection of cold source disaster-causing materials in nuclear power plants.

[0076] Optionally, the mass of the second mesh body 22 can be 60%, 55%, 45%, 30%, or 20% of the mass of the new high-efficiency interception net 100, which is suitable for the protection of nuclear power plant cold source disaster-causing materials.

[0077] In some embodiments, the diameter of the base net rope 211 is 0.5mm-8mm, and the diameter of the reinforcing net rope 221 is 1mm-10mm.

[0078] Optionally, the diameter of the base net rope 211 is 0.5mm, 1mm, 2.5mm, 3mm, 5.5mm, 6mm, 7mm, 8mm, etc.

[0079] Optionally, the diameter of the reinforcing rope 221 can be 1mm, 2mm, 4mm, 4.5mm, 6mm, 6.5mm, 7mm, 8mm, 10mm, etc.

[0080] In some embodiments, the diameter of the base net rope 211 is 0.6mm-7mm.

[0081] Optionally, the diameter of the base net rope 211 can be 0.6mm, 1mm, 1.5mm, 3mm, 4.5mm, 7mm, etc.

[0082] In some embodiments, the diameter of the reinforcing cord 221 is 2mm-8mm.

[0083] Optionally, the diameter of the reinforcing rope 221 can be 2mm, 3mm, 3.5mm, 4.5mm, 6mm, 8mm, etc.

[0084] It should be noted that the side length of the mesh of the first net body 21, the side length of the mesh of the second net body 22, the diameter of the basic net rope 211, the diameter of the reinforcing net rope 221, and the number and mass ratio of the reinforcing net ropes 221 can be adjusted within the above range according to the actual environment and cost.

[0085] In some embodiments, the base rope 211 is made of at least one of polyester filament, polyethylene, and nylon filament.

[0086] Optionally, the base rope 211 can be made of polyester filament, and the base rope 211 has good abrasion resistance.

[0087] Optionally, the base rope 211 can also be made of polyethylene, and the base rope 211 has good waterproof properties.

[0088] Optionally, the base rope 211 can also be made of nylon filaments, which has high elasticity and strong impact resistance.

[0089] Optionally, the base rope 211 can also be made of various materials such as polyester filament, polyethylene, and nylon filament.

[0090] In some embodiments, the reinforcing rope 221 is made of at least one of aramid material, glass fiber, and ultra-high molecular weight polyethylene fiber.

[0091] Optionally, the reinforcing rope 221 can be made of aramid material, which has good cut resistance.

[0092] Optionally, the reinforcing rope 221 can also be made of glass fiber, which has stable chemical properties and is not easily corroded by seawater.

[0093] Optionally, the reinforced rope 221 can also be made of ultra-high molecular weight polyethylene fiber, which has better wear resistance and a longer service life.

[0094] Optionally, the reinforcing cord 221 can also be made of various materials such as aramid, glass fiber, and ultra-high molecular weight polyethylene fiber.

[0095] In some embodiments, the reinforcing rope 221 may also be a high-performance fiber rope with a core-sheath structure, which has high strength and light weight.

[0096] In some embodiments, the first mesh 21 and the second mesh 22 are connected by sewing or binding, and the first mesh 21 and the second mesh 22 can be firmly connected together, and the mesh assembly 20 has strong impact resistance.

[0097] In some embodiments, please refer to Figure 1 The mesh openings of the first mesh body 21 and the mesh openings of the second mesh body 22 are both diamond-shaped.

[0098] In some embodiments, please refer to Figure 1 The first net body 21 is connected to the second net body 22. In the direction perpendicular to the first net body 21, the orthographic projection of any reinforcing rope 221 onto the first net body 21 lies within the mesh opening of the first net body 21. The reinforcing rope 221 and the base rope 211 form a small mesh opening. On a plane parallel to the first net body 21, the orthographic projection area of ​​the small mesh opening is smaller than the orthographic projection area of ​​the mesh opening of the first net body 21. The reinforcing rope 221 and the base rope 211 form a smaller mesh opening, which can prevent smaller foreign objects from entering the water intake of the nuclear power plant.

[0099] In some embodiments, please refer to Figure 1 The support frame 10 is a rectangular frame with a length of 800mm ± 5mm and a width of 400mm ± 5mm. The support frame 10 is made of #8 steel bars.

[0100] In some embodiments, the support frame 10 is made of 316L stainless steel, which has good corrosion resistance.

[0101] In some embodiments, please refer to Figure 1 A novel high-efficiency interception net 100, applicable to the protection against cold source hazards in nuclear power plants, includes a support frame 10 and a net assembly 20. The net assembly 20 is connected to the support frame 10 and includes a first net body 21 and a second net body 22. The first net body 21 includes multiple basic net ropes 211. The second net body 22 is stacked on top of the first net body 21 and includes multiple reinforcing net ropes 221. The tensile strength of the reinforcing net ropes 221 is greater than that of the basic net ropes 211. Both the basic net ropes 211 and the reinforcing net ropes 221 are coated with an antifouling coating 23. The mesh count of the first net body 21 is greater than that of the second net body 22.

[0102] In some embodiments, please refer to Figure 3 The manufacturing method of a new type of high-efficiency interception net 100 suitable for the protection of cold source disaster-causing materials in nuclear power plants includes the following steps: S1, weave the first net body 21 and the second net body 22.

[0103] Based on the mesh size, side length, and wire diameter, select the basic net rope 211 and the reinforcing net rope 221. Weave the basic net rope 211 to form the first net body 21, and weave the reinforcing net rope 221 to form the second net body 22.

[0104] S2, apply anti-fouling coating.

[0105] Specifically, an anti-fouling coating is prepared, and then the anti-fouling coating is sprayed onto the surface of the base rope 211 of the first net body 21 and the reinforcing rope 221 of the second net body 22 to form an anti-fouling coating.

[0106] S3, tie the first net body 21, the second net body 22 and the support frame 10.

[0107] Optionally, the first net body 21 and the support frame 10 are tied together using nylon tape and binding rope, and the second net body 22 and the support frame 10 are tied together to form a new type of high-efficiency interception net 100 suitable for the protection of cold source disaster-causing materials in nuclear power plants.

[0108] S4, the surface of the new high-efficiency interception net 100, which is suitable for the protection of cold source disaster objects in nuclear power plants, is treated with wear resistance.

[0109] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A novel, high-efficiency interception net suitable for protecting nuclear power plant cold source disaster-causing materials, characterized in that, include: Support frame; A net assembly is connected to the support frame. The net assembly includes a first net and a second net. The first net includes a plurality of basic net ropes. The second net is stacked on top of the first net and includes a plurality of reinforcing net ropes. The tensile strength of the reinforcing net ropes is greater than that of the basic net ropes. The base net rope and the reinforcing net rope are respectively coated with an anti-fouling coating.

2. The novel high-efficiency interception net for the protection of nuclear power plant cold source disaster-causing materials as described in claim 1, characterized in that, The anti-fouling coating is a natural self-polishing coating.

3. The novel high-efficiency interception net for the protection of nuclear power plant cold source disaster-causing materials as described in claim 2, characterized in that, The antifouling coating includes at least one of the following: self-polishing coatings containing capsaicin, self-polishing coatings containing capsaicin derivatives, and self-polishing coatings containing indole derivatives.

4. The novel high-efficiency interception net for the protection of nuclear power plant cold source disaster-causing materials as described in claim 1, characterized in that, The antifouling coating is a copper-containing leaching coating.

5. The novel high-efficiency interception net for the protection of nuclear power plant cold source disaster-causing materials as described in claim 4, characterized in that, The antifouling coating includes at least one of copper-containing self-polishing coatings and copper-containing composite coatings.

6. The novel high-efficiency interception net for the protection of nuclear power plant cold source disaster-causing materials as described in any one of claims 1-5, characterized in that, The mesh count of the first mesh is greater than the mesh count of the second mesh.

7. The novel high-efficiency interception net applicable to the protection of nuclear power plant cold source disaster-causing materials as described in any one of claims 1-5, characterized in that, The novel high-efficiency interception net applicable to the protection of cold source disaster-causing materials in nuclear power plants also includes a first connector and a second connector, which are respectively connected to the net body assembly and the support frame, and the first connector and the second connector are detachably connected.

8. A novel high-efficiency interception net for the protection of nuclear power plant cold source disaster-causing materials as described in any one of claims 1-5, characterized in that, The novel high-efficiency interception net applicable to the protection of cold source disasters in nuclear power plants also includes a third connector, which is connected to one of the net body assembly and the support frame, and is detachably connected to the other.

9. A novel high-efficiency interception net for the protection of nuclear power plant cold source disaster-causing materials as described in any one of claims 1-5, characterized in that, The braiding angle of the basic net rope and the braiding angle of the reinforcing net rope are 10°-30°; And / or, the side length of the mesh openings of the first mesh body and the second mesh body is 4mm-50mm, the diameter of the base mesh rope is 0.5mm-8mm, and the diameter of the reinforcing mesh rope is 1mm-10mm; And / or, the mass of the second net body is less than 75% of the mass of the new high-efficiency interception net applicable to the protection of cold source disasters in nuclear power plants.

10. A novel high-efficiency interception net for the protection of nuclear power plant cold source disaster-causing materials as described in any one of claims 1-5, characterized in that, The base rope is made of at least one of polyester filament, polyethylene, and nylon filament; And / or, the reinforcing rope is made of at least one of aramid material, glass fiber, and ultra-high molecular weight polyethylene fiber.

Images