High-temperature-resistant and radiation-resistant nuclear power bolt multilayer protection assembly

Abstract

This utility model relates to the technical field of bolts, and in particular to a multi-layer protective assembly for high-temperature resistant and radiation-resistant nuclear power bolts. The assembly includes a bolt body with a protective mechanism. The bolt body comprises a core bearing layer, a sealing protective layer on the core bearing layer, a buffer layer on the sealing protective layer, a radiation-shielding layer on the buffer layer, a heat-insulating layer on the radiation-shielding layer, and an outer protective layer on the heat-insulating layer. By incorporating the core bearing layer, sealing protective layer, buffer layer, radiation-shielding layer, heat-insulating layer, and outer protective layer, the protective performance of the bolt is improved, facilitating its use. The protective mechanism also facilitates the exposed ends of the bolt, promoting its long-term use.

Description

Technical Field

[0001] This utility model relates to the field of bolt-related technology, and in particular to a multi-layer protective assembly for high-temperature resistant and radiation-resistant nuclear power bolts. Background Technology

[0002] In high-temperature and high-radiation environments such as nuclear power plants, bolts are key connecting components whose performance directly affects the safety and stability of the equipment. Traditional bolt structures are prone to corrosion, deformation, and failure under high temperature and radiation conditions, which can lead to equipment failure or safety hazards. Therefore, how to extend the service life of bolts by improving their high temperature resistance, radiation resistance, and mechanical strength has become an urgent problem to be solved in the nuclear power industry.

[0003] To address this, we designed a high-temperature resistant and radiation-resistant multi-layer protective assembly for nuclear power plant bolts to meet the needs of practical applications. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a high-temperature resistant and radiation-resistant multi-layer protective assembly for nuclear power bolts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design a high-temperature resistant and radiation-resistant nuclear power plant bolt multi-layer protection component, including a bolt body, a protective mechanism provided on the bolt body, the bolt body including a core bearing layer, a sealing protection layer provided on the core bearing layer, a buffer layer provided on the sealing protection layer, a radiation protection layer provided on the buffer layer, a heat insulation layer provided on the radiation protection layer, and an outer protective layer provided on the heat insulation layer;

[0007] The protective mechanism includes a protective shell, which is inserted into the end of the bolt body. A sealing gasket is fixedly installed at the bottom of the protective shell, and a fixing ball is fixedly installed on the inner wall of the protective shell. A slot is provided at the top of the bolt body.

[0008] In detail, the core bearing layer is made of high-strength alloy steel.

[0009] In detail, the sealing protective layer is made of fluororubber.

[0010] In detail, the buffer layer is made of high-strength rubber.

[0011] In detail, the radiation shielding layer is made of high-density lead.

[0012] In detail, the heat insulation layer is made of silicon carbide, and the outer protective layer is made of tungsten alloy.

[0013] In detail, the sealing gasket is made of silicone rubber, and the fixing ball is made of fluororubber.

[0014] Core functions: The core load-bearing layer provides structural load-bearing capacity, ensuring stable operation of components in extreme environments and preventing deformation or breakage due to external forces; the sealing and protective layer provides effective sealing to prevent leakage of harmful gases or liquids and prevent external contaminants from entering the internal structure; the buffer layer provides cushioning and shock absorption, reducing mechanical stress caused by high temperature, radiation, and pressure changes; the radiation shielding layer absorbs and shields nuclear radiation, preventing radiation from affecting the inner equipment; the heat insulation layer provides heat insulation performance and prevents high temperature from being transmitted to the inner layer, while reducing structural deformation caused by thermal expansion; and the outer protective layer provides external protection, resisting the intrusion of external radiation and effectively isolating the effects of high temperature on the internal structure.

[0015] After the bolt body is installed, the protective shell can be fixed to the end of the bolt body by inserting a fixing ball and a slot. The sealing gasket at one end of the protective shell will contact the mounting surface of the bolt body, thereby achieving the purpose of sealing the internal cavity of the protective shell and facilitating the sealing and protection of the end of the bolt body.

[0016] The design scheme proposed in this utility model has the following beneficial effects in application:

[0017] 1. By setting a core bearing layer, a sealing protection layer, a buffer layer, a radiation protection layer, a heat insulation layer, and an outer protective layer, the protective performance of the bolts is improved, which is beneficial to the use of the bolts;

[0018] 2. By incorporating a protective mechanism, the exposed ends of the bolts are made more accessible, thus ensuring their longevity. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the protective shell of this utility model;

[0021] Figure 3 This is a schematic diagram of the slot of this utility model;

[0022] Figure 4 This is a partial exploded view of the bolt body of this utility model.

[0023] In the diagram: 1. Bolt body; 11. Core bearing layer; 12. Sealing protection layer; 13. Buffer layer; 14. Radiation protection layer; 15. Heat insulation layer; 16. Outer protective layer; 21. Protective shell; 22. Sealing gasket; 23. Fixing ball; 24. Slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-4 A high-temperature resistant and radiation-resistant nuclear power plant bolt multi-layer protective assembly includes a bolt body 1 with a protective mechanism. The bolt body 1 includes a core bearing layer 11, which provides structural load-bearing capacity, ensuring stable operation of the assembly under extreme environments and preventing deformation or breakage due to external forces. A sealing protective layer 12 is provided on the core bearing layer 11, providing effective sealing to prevent leakage of harmful gases or liquids and to prevent external contaminants from entering the internal structure. A buffer layer 13 is provided on the sealing protective layer 12. To provide buffering and shock absorption and reduce mechanical stress caused by high temperature, radiation and pressure changes, a radiation shielding layer 14 is provided on the buffer layer 13. The radiation shielding layer 14 is mainly used to absorb and shield nuclear radiation to prevent the radiation from affecting the inner equipment. A heat insulation layer 15 is provided on the radiation shielding layer 14. The heat insulation layer 15 is used to provide heat insulation performance and prevent high temperature from being transmitted to the inner layer, while reducing structural deformation caused by thermal expansion. An outer protective layer 16 is provided on the heat insulation layer 15. The outer protective layer 16 is used to provide external protection, resist the intrusion of external radiation and effectively isolate the effects of high temperature on the internal structure.

[0026] The protective mechanism includes a protective shell 21, which is inserted into the end of the bolt body 1. The protective shell 21 is used to protect the end of the bolt body 1. A sealing gasket 22 is fixedly installed at the bottom of the protective shell 21. By providing the sealing gasket 22, it is easy to contact the mounting surface of the bolt body 1, thereby achieving the purpose of sealing the protective shell 21 and protecting the end of the bolt body 1. A fixing ball 23 is fixedly installed on the inner wall of the protective shell 21. The fixing ball 23 is used to be inserted into a slot 24. A slot 24 is opened at the top of the bolt body 1. The slot 24 is used to receive the insertion of the fixing ball 23, thereby achieving the purpose of fixing the protective shell 21 to the end of the bolt body 1.

[0027] It should be further noted that the core load-bearing layer 11 is made of high-strength alloy steel. By setting the core load-bearing layer 11, it is used to provide structural load-bearing capacity, ensuring that the components can still work stably in extreme environments and preventing deformation or breakage due to external forces.

[0028] It should be further noted that the sealing protective layer 12 is made of fluororubber. By providing the sealing protective layer 12, an effective sealing function is provided to prevent the leakage of harmful gases or liquids, while preventing external contaminants from entering the internal structure.

[0029] It should be further noted that the buffer layer 13 is made of high-strength rubber. By setting the buffer layer 13, it is used to provide cushioning and shock resistance, and reduce mechanical stress caused by high temperature, radiation and pressure changes.

[0030] It should be further noted that the radiation shielding layer 14 is made of high-density lead. The radiation shielding layer 14 is mainly used to absorb and shield nuclear radiation, and prevent the radiation from affecting the inner equipment.

[0031] It should be further noted that the heat insulation layer 15 is made of silicon carbide. By setting the heat insulation layer 15, it is used to provide heat insulation performance and prevent high temperature from being transferred to the inner layer, while reducing structural deformation caused by thermal expansion. The outer protective layer 16 is made of tungsten alloy. By setting the outer protective layer 16, it is used to provide external protection, resist the intrusion of external radiation, and effectively isolate the impact of high temperature on the internal structure.

[0032] It should be further noted that the sealing gasket 22 is made of silicone rubber. By setting the sealing gasket 22, it is easy to contact the mounting surface of the bolt body 1, thereby achieving the purpose of sealing the protective shell 21 and protecting the end of the bolt body 1. The fixing ball 23 is made of fluororubber. The fixing ball 23 is set to be inserted into the slot 24.

[0033] Operating mode: A core load-bearing layer 11 is provided to provide structural load-bearing capacity, ensuring that the components can still work stably in extreme environments and preventing deformation or breakage due to external forces. A sealing protection layer 12 is provided to provide effective sealing function to prevent the leakage of harmful gases or liquids and prevent external pollutants from entering the internal structure. A buffer layer 13 is provided to provide buffering and shock resistance to reduce mechanical stress caused by high temperature, radiation and pressure changes. A radiation shielding layer 14 is mainly used to absorb and shield nuclear radiation to prevent radiation from affecting the inner equipment. A heat insulation layer 15 is provided to provide heat insulation performance and prevent high temperature from being transmitted to the inner layer, while reducing structural deformation caused by thermal expansion. An outer protective layer 16 is provided to provide external protection to resist the intrusion of external radiation and effectively isolate the effects of high temperature on the internal structure.

[0034] After the bolt body 1 is installed, the protective shell 21 can be inserted and fixed to the end of the bolt body 1 through the fixing ball 23 and the slot 24. The sealing gasket 22 at one end of the protective shell 21 will contact the mounting surface of the bolt body 1, thereby achieving the purpose of sealing the internal cavity of the protective shell 21 and facilitating the sealing and protection of the end of the bolt body 1.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-temperature resistant and radiation-resistant nuclear power plant bolt multi-layer protective assembly, comprising a bolt body (1), characterized in that: The bolt body (1) is provided with a protective mechanism. The bolt body (1) includes a core bearing layer (11), a sealing protection layer (12) is provided on the core bearing layer (11), a buffer layer (13) is provided on the sealing protection layer (12), a radiation shielding layer (14) is provided on the buffer layer (13), a heat insulation layer (15) is provided on the radiation shielding layer (14), and an outer protective layer (16) is provided on the heat insulation layer (15). The protective mechanism includes a protective shell (21), which is inserted into the end of the bolt body (1). A sealing gasket (22) is fixedly installed at the bottom of the protective shell (21), and a fixing ball (23) is fixedly installed on the inner wall of the protective shell (21). A slot (24) is provided at the top of the bolt body (1).

2. The high-temperature resistant and radiation-resistant nuclear power plant bolt multi-layer protective assembly according to claim 1, characterized in that: The core bearing layer (11) is made of high-strength alloy steel.

3. The high-temperature resistant and radiation-resistant nuclear power plant bolt multi-layer protective assembly according to claim 1, characterized in that: The sealing protective layer (12) is made of fluororubber.

4. The high-temperature resistant and radiation-resistant nuclear power plant bolt multi-layer protective assembly according to claim 1, characterized in that: The buffer layer (13) is made of high-strength rubber.

5. The high-temperature resistant and radiation-resistant nuclear power plant bolt multi-layer protective assembly according to claim 1, characterized in that: The radiation shielding layer (14) is made of high-density lead.

6. The high-temperature resistant and radiation-resistant nuclear power plant bolt multi-layer protective assembly according to claim 1, characterized in that: The heat insulation layer (15) is made of silicon carbide, and the outer protective layer (16) is made of tungsten alloy.

7. The high-temperature resistant and radiation-resistant nuclear power plant bolt multi-layer protective assembly according to claim 1, characterized in that: The sealing gasket (22) is made of silicone rubber, and the fixing ball (23) is made of fluororubber.

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