A nuclear power plant vent

Abstract

The utility model provides a kind of nuclear power plant explosion vent, including foundation, the door frame body is fixed in foundation top, the first door body and second door body are further included in the door frame body, the recess is equipped with multiple buckles in the door frame body inward recess, the recess is equipped with expansion seal strip with buckle cooperation installation, the expansion seal strip is tightly attached to the first door body and second door body outer side wall, multiple cavities are evenly distributed in the soft seal strip, multiple cavities are equipped with air bag, reaction liquid is equipped in the air bag;The first door body and second door body inboard wall are cambered surface, and the first door body and second door body inboard wall upper position are connected with multiple shunt parts for air drainage, after explosion air bag is extruded, reaction liquid penetrates expansion seal strip, expansion seal strip expands rapidly, fills entire recess, forms solid sealing layer, effectively blocks harmful substance leakage, ensures safety.

Description

Technical Field

[0001] This utility model relates to the field of explosion relief doors, and more particularly to an explosion relief door for nuclear power plants. Background Technology

[0002] Explosion relief doors are safety devices used in high-risk industrial locations such as chemical plants, nuclear power plants, and dusty workshops. They are building components designed to quickly and safely release explosive pressure in the event of an explosion. Their main function is to guide the enormous pressure generated by the explosion to a safe area at the moment of explosion, effectively reducing or preventing damage to the building's main structure and personnel inside. Explosion relief doors are typically made of high-strength, lightweight materials and possess excellent sealing performance to ensure the building's airtightness and insulation during daily use, while also being able to open quickly in emergencies to ensure timely release of explosive pressure.

[0003] Explosion relief doors are crucial in industrial applications, especially in nuclear power plants. Their design must meet higher safety standards to ensure the safety of equipment and personnel in extreme situations, effectively buffer and disperse the shock waves of an explosion, and ensure the overall structural stability of the nuclear power plant. However, existing explosion relief doors also have some drawbacks. They are usually expensive to manufacture and maintain, and repairs after an explosion are complex. Furthermore, the impact force and high temperature of an explosion may cause the explosion relief door structure to deform, spreading harmful gases into the surrounding environment and increasing the risk of secondary accidents.

[0004] Therefore, a nuclear power plant explosion vent is proposed here to solve the aforementioned problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing technologies where the impact force of explosions and the deformation of the door frame caused by high temperatures lead to the diffusion of harmful gases into the surrounding environment and increase the risk of secondary accidents, this utility model provides a nuclear power plant explosion relief door.

[0006] This utility model is achieved using the following technical solution:

[0007] A nuclear power plant explosion relief door includes a foundation, a door frame fixed to the top of the foundation, and a first door and a second door inside the door frame. The door frame is recessed inward and has a groove. Multiple buckles are connected to the edge of the groove. An expansion sealing strip is installed in the groove and the buckles. The expansion sealing strip is in close contact with the outer walls of the first door and the second door. Multiple cavities are evenly distributed inside the soft sealing strip. Airbags are provided in the multiple cavities. Reaction liquid is provided in the airbags.

[0008] The inner walls of the first door and the second door are curved, and multiple air diversion components for guiding air are connected above the inner walls of the first door and the second door.

[0009] As a preferred embodiment of this utility model, a rotating rod is provided inside the diverter, a guide plate is movably installed on the rotating rod, and a limiting plate is provided on the inner side of the diverter. A reset torsion spring is symmetrically provided at both ends of the rotating rod. One end of the reset torsion spring is connected to the bottom of the reset plate, and the other end of the reset torsion spring is connected to the guide plate.

[0010] As a preferred embodiment of this utility model, the top of the door frame and the top surface of the foundation are symmetrically provided with two movable holes, and the outer ends of the first door and the second door are provided with movable rods corresponding to the movable holes.

[0011] As a preferred embodiment of this utility model, multiple movable parts are symmetrically arranged at both ends of the inner side of the door frame, and multiple hinges that match the movable parts are provided on the inner side walls of the first door and the second door, and the hinges are movably installed in the movable parts.

[0012] As a preferred embodiment of this utility model, the first door body side end face is provided with a sealing opening, and the second door body side end face is provided with a sealing closed opening opposite to the sealing opening.

[0013] As a preferred embodiment of this utility model, handles are provided on the outer walls of both the first and second door bodies, and multiple reinforcing ribs are provided on the inner walls of both the first and second door bodies.

[0014] As a preferred embodiment of this utility model, the material of the expansion sealing strip is specifically expandable graphite.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] 1. A groove is recessed inward in the door frame. The expansion sealing strip inside the groove is tightly attached to the outer walls of the first and second doors, effectively isolating harmful substances inside the door and preventing their spread. When the explosion impact inside the nuclear power plant is small, the expansion sealing strip acts as a buffer and seal for the first and second doors. When the explosion impact inside the nuclear power plant is large, the first and second doors will squeeze the expansion sealing strip under the impact force. At the same time, the high temperature and the reaction liquid inside the compression bladder permeate the expansion sealing strip, causing it to expand rapidly, fill the entire groove, and form a solid sealing layer, effectively preventing the leakage of harmful substances and ensuring safety.

[0017] 2. When the impact of the explosion is small, the impact force will be transmitted to the inner walls of the first and second doors. Since the inner walls of the first and second doors are designed with arc surfaces, local stress concentration is reduced. At the same time, under the action of a small impact force, the interaction between the air guide plate connected to the rotating rod and the arc surface will evenly disperse the impact force.

[0018] 3. Under the action of the return torsion springs at both ends of the rotating rod, the air guide plate quickly returns to its original position. Even if there are walls on both sides of the door frame, the air guide plate will touch the wall when the door needs to be opened. When the first and second doors are fully opened, the air guide plate may touch the wall. Under the elastic force of the return torsion spring, the air guide plate will automatically rebound when the first and second doors are closed to avoid damage and ensure smooth opening and closing of the door. Attached Figure Description

[0019] Figure 1 This is a first-view structural diagram of the present invention;

[0020] Figure 2 This is a second-view structural diagram of the present invention;

[0021] Figure 3 This is an exploded view of the present invention;

[0022] Figure 4 This is a diagram of the opening structure of the second door of this utility model;

[0023] Figure 5 This is a structural diagram of the expansion sealing strip of this utility model;

[0024] Figure 6 This is a structural diagram of the movable part of this utility model;

[0025] In the diagram: 1. Foundation; 2. Door frame; 21. Groove; 22. Buckle; 3. Expansion sealing strip; 31. Cavity; 32. Airbag; 33. Reaction liquid; 4. First door body; 5. Second door body; 6. Moving parts; 61. Hinge; 62. Movable hole; 63. Movable rod; 64. Handle; 65. Reinforcing rib; 66. Sealing opening; 67. Sealing closing; 68. Curved surface; 7. Diverter; 71. Rotating rod; 72. Air guide plate; 73. Reset torsion spring; 74. Limiting plate. Detailed Implementation

[0026] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] Example:

[0028] Please see Figures 1-6A nuclear power plant explosion relief door includes a foundation 1, a door frame 2 fixed to the top of the foundation 1, a first door 4 and a second door 5 inside the door frame 2, a groove 21 recessed inward in the door frame 2, a plurality of buckles 22 connected to the edge of the groove 21, an expansion sealing strip 3 installed in the groove 21 and the buckles 22, the expansion sealing strip 3 closely adhering to the outer side wall of the first door 4 and the second door 5, a plurality of cavities 31 evenly distributed inside the soft sealing strip, an airbag 32 provided in the plurality of cavities 31, and a reaction liquid 33 provided in the airbag 32;

[0029] The inner walls of the first door body 4 and the second door body 5 are curved surfaces 68, and multiple air diversion components 7 are connected above the inner walls of the first door body 4 and the second door body 5 for guiding airflow.

[0030] In this embodiment, a door frame 2 is fixedly installed on the top of the foundation 1. A first door 4 and a second door 5 are also provided inside the door frame 2. The door frame 2 has an inwardly recessed groove 21. Multiple buckles 22 are evenly arranged along the edge of the groove 21. An expansion sealing strip 3 is installed inside the groove 21. The buckles 22 fix the expansion sealing strip 3. After the expansion sealing strip 3 is installed, when the first door 4 and the second door 5 are closed, the expansion sealing strip 3 will tightly fit against the first door 4 and the second door 5 to prevent the leakage of harmful gases. Multiple cavities 31 are evenly arranged inside the expansion sealing strip 3. Airbags 32 are installed inside the cavities 31. The airbags 32 contain reaction liquid 33. The expansion sealing strip 3 is normally in a contracted state. When encountering extreme situations such as explosions, when the first door 4 and the second door 5 are impacted by the explosive force or high temperature, the reaction liquid 33 in the airbags 32 is squeezed to penetrate the expansion sealing strip 3. The expansion sealing strip 3 expands rapidly, filling the entire groove 21 and completely sealing the gap between the first door 4 and the second door 5, effectively preventing the diffusion of harmful gases and ensuring safety.

[0031] The inner walls of the first door body 4 and the second door body 5 are both curved surfaces 68. When encountering a small airflow impact, the expansion sealing strip 3 will not function and will not achieve a sealing effect. When the impact force impacts the inner walls of the first door body 4 and the second door body 5, the curved surface 68 is designed to evenly disperse the impact force and avoid local stress concentration. Multiple diverting components 7 are provided at the upper position of the inner walls of the first door body 4 and the second door body 5, that is, above the curved surface 68. The diverting components 7 and the curved surface 68 cooperate with each other to guide the airflow to disperse smoothly.

[0032] As a preferred embodiment of this utility model, a rotating rod 71 is provided inside the diverter 7, and a guide plate 72 is movably installed on the rotating rod 71. A limiting plate 74 is provided on the inner side of the diverter 7. A reset torsion spring 73 is symmetrically provided at both ends of the rotating rod 71. One end of the reset torsion spring 73 is connected to the bottom of the reset plate, and the other end of the reset torsion spring 73 is connected to the guide plate 72.

[0033] In this embodiment, a rotating rod 71 is provided inside each of the multiple diverting components 7. A guide plate 72 is movably installed on the periphery of the rotating rod 71. The guide plate 72 can rotate flexibly on the rotating rod 71 and automatically adjust its angle according to the direction of the impact airflow. At the same time, limit plates 74 are symmetrically arranged on the inner sides of both ends of the diverting component 7. A reset torsion spring 73 is symmetrically arranged on both ends of the rotating shaft. One end of the reset torsion spring 73 is connected to the reset plate, and the other end is fixed to the diverting component 7. When subjected to a small impact force, the guide plate 72 automatically resets under the action of the reset torsion spring 73.

[0034] As a preferred embodiment of this utility model, the top of the door frame 2 and the top surface of the foundation 1 are symmetrically provided with two movable holes 62, and the outer ends of the first door body 4 and the second door body 5 are provided with movable rods 63 corresponding to the movable holes 62.

[0035] In this embodiment, the top of the door frame 2 is symmetrically provided with two movable holes 62 on the top surface of the foundation 1. At the same time, the first door 4 and the second door 5 are respectively provided with movable rods 63 in opposite positions. The movable rods 63 are inserted into the movable holes 62. The first door 4 and the second door 5 are installed into the movable holes 62 through the movable rods 63, so that the first door 4 and the second door 5 can move within the door frame 2.

[0036] As a preferred embodiment of this utility model, multiple movable parts 6 are symmetrically arranged at both ends of the inner side of the door frame 2, and multiple hinges 61 that match the movable parts are provided on the inner side walls of the first door body 4 and the second door body 5, and the hinges 61 are movably installed in the movable parts 6.

[0037] In this embodiment, multiple movable parts 6 are symmetrically arranged at both ends of the inner side of the door frame 2. The multiple movable parts 6 are evenly distributed at both ends of the inner side of the door frame 2. Multiple hinges 61 are provided on the inner sidewalls of the first door body 4 and the second door body 5. The multiple hinges 61 are connected to the multiple movable parts 6, and cooperate with the movable holes 62 and the movable rods 63 to ensure that the door body can be opened and closed flexibly.

[0038] As a preferred embodiment of this utility model, the first door body 4 has a sealing opening 66 on its side end face, and the second door body 5 has a sealing opening 67 opposite to the sealing opening 66 on its side end face.

[0039] In this embodiment, the first door body 4 has a sealing opening 66 on its side end face, and the second door body 5 has a sealing closure 67 on its side end face. The sealing opening 66 and the sealing closure 67 fit together to form a tight sealing structure. During the opening process, the second door body 5 is opened first, and then the first door body 4 is opened. In summary, during the closing process, the first door body 4 is closed first, and then the second door body 5 is closed to ensure sealing.

[0040] As a preferred embodiment of this utility model, handles 64 are provided on the outer side walls of the first door body 4 and the second door body 5, and multiple reinforcing ribs 65 are provided on the inner side walls of the first door body 4 and the second door body 5.

[0041] In this embodiment, handles 64 are provided on the outer side walls of the first door body 4 and the second door body 5 for easy opening and closing. Multiple reinforcing ribs 65 are provided on the inner side walls of the first door body 4 and the second door body 5. The reinforcing ribs 65 are used to enhance the structural stability of the door body and prevent deformation.

[0042] As a preferred embodiment of this utility model, the material of the expansion sealing strip 3 is specifically expandable graphite.

[0043] In this embodiment, the material of the expansion sealing strip 3 is expandable graphite, and the reaction liquid 33 can be hydrogen peroxide. When the temperature is high or the airbag 32 ruptures, the expansion sealing strip 3 expands under the action of the reaction liquid 33 to fill the gap and prevent the diffusion of harmful substances.

[0044] The principle of this utility model is as follows: When the explosion impact inside the nuclear power plant is small, the expansion sealing strip 3 plays a role in buffering and sealing the first door 4 and the second door 5. When the explosion impact inside the nuclear power plant is large, the first door 4 and the second door 5 will squeeze the expansion sealing strip 3 under the action of the impact force. At the same time, the reaction liquid 33 in the high temperature and the compression airbag 32 permeates the expansion sealing strip 3, and the expansion sealing strip 3 expands rapidly, filling the entire groove 21 to form a solid sealing layer, effectively preventing the leakage of harmful substances and ensuring safety. When the explosion impact is small, the impact force will be transmitted to the inner wall of the first door 4 and the second door 5. The interaction between the air guide plate 72 movably connected on the rotating rod 71 and the arc surface 68 will evenly disperse the impact force.

[0045] 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 its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A nuclear power plant explosion relief door, comprising a foundation (1), a door frame (2) fixed on top of the foundation (1), the door frame (2) further comprising a first door body (4) and a second door body (5), characterized in that: The door frame (2) is recessed inward and has a groove (21). Multiple buckles (22) are connected to the edge of the groove (21). An expansion sealing strip (3) is installed in the groove (21) and the buckles (22). The expansion sealing strip (3) is closely attached to the outer side wall of the first door (4) and the second door (5). Multiple cavities (31) are evenly distributed inside the expansion sealing strip (3). Airbags (32) are provided in the multiple cavities (31). Reaction liquid (33) is provided in the airbags (32). The inner walls of the first door (4) and the second door (5) are curved (68), and multiple air diversion components (7) for guiding air are connected above the inner walls of the first door (4) and the second door (5).

2. A nuclear power plant explosion relief door according to claim 1, characterized in that: The diverter (7) is provided with a rotating rod (71), and a guide plate (72) is movably installed on the rotating rod (71). A limiting plate (74) is provided on the inner side of the diverter (7). A reset torsion spring (73) is symmetrically provided at both ends of the rotating rod (71). One end of the reset torsion spring (73) is connected to the bottom of the reset plate, and the other end of the reset torsion spring (73) is connected to the guide plate (72).

3. A nuclear power plant explosion relief door according to claim 1, characterized in that: The top of the door frame (2) and the top surface of the foundation (1) are symmetrically provided with two movable holes (62), and the outer ends of the first door (4) and the second door (5) are provided with movable rods (63) corresponding to the movable holes (62).

4. A nuclear power plant explosion relief door according to claim 3, characterized in that: Multiple movable parts (6) are symmetrically arranged at both ends of the inner side of the door frame (2). Multiple hinges (61) that match the movable parts are provided on the inner side walls of the first door body (4) and the second door body (5). The hinges (61) are movably installed in the movable parts (6).

5. A nuclear power plant explosion relief door according to claim 1, characterized in that: The first door body (4) has a sealing opening (66) on its side end face, and the second door body (5) has a sealing closure (67) opposite to the sealing opening (66) on its side end face.

6. A nuclear power plant explosion relief door according to claim 1, characterized in that: Handles (64) are provided on the outer side walls of the first door body (4) and the second door body (5), and multiple reinforcing ribs (65) are provided on the inner side walls of the first door body (4) and the second door body (5).

7. A nuclear power plant explosion relief door according to claim 1, characterized in that: The material of the expansion sealing strip (3) is expandable graphite.

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