Self-resetting assembled high-energy-consumption explosion door with metal damper and construction method thereof

Abstract

The application discloses a self-resetting assembled high-energy-consumption explosion door with a metal damper and a construction method thereof, which comprises a door body, a head, an edge and a sandwich plate. The head is arranged on the upper and lower sides of the door body, the edge is arranged on the left and right sides of the door body, and the sandwich plate is arranged on the back of the door body. The door body comprises a cover plate, a metal damper, a self-resetting energy-consuming component and a filling material. The cover plate is composed of an upper cover plate and a lower cover plate. The lower end of the metal damper is connected with the lower cover plate. The upper end of the self-resetting energy-consuming component is connected with the lower cover plate. The upper end is connected with the upper cover plate through a self-tapping screw. The filling material is arranged between the upper cover plate and the lower cover plate. The sandwich plate comprises a skin plate, an insulation layer and a sandwich panel. The self-resetting energy-consuming component and the metal damper are carefully designed, so that the energy consumption capacity can be maximized, the impact damage caused by explosion can be effectively blocked, the overall protection performance of the explosion door is improved, and the anti-explosion impact capacity of the explosion door is remarkably improved in a synergistic manner.

Description

Technical Field

[0001] This invention pertains to explosion-proof doors, specifically a self-resetting, assembled high-energy-consuming explosion-proof door with a metal damper and its construction method. Background Technology

[0002] As global energy demand continues to grow and fossil fuel reserves dwindle, humanity is becoming increasingly reliant on clean energy sources such as nuclear power plants. However, the safety of nuclear power plants remains a major concern, with explosion-proof doors being a crucial component of this safety system; their performance directly impacts the safe operation of the plant and the safety of its personnel.

[0003] Despite the existence of various explosion-proof door designs and applications, numerous problems remain in practical operation. Firstly, while some explosion-proof door designs reduce the likelihood of them being blown away, their simple construction results in poor energy dissipation and insufficient impact resistance. Faced with a powerful blast, these doors may fail to effectively block the pressure wave, leading to deformation, cracking, or even ejection, causing serious secondary injuries to surrounding personnel and facilities. Secondly, the assembly and maintenance of existing explosion-proof doors are often complex, increasing manufacturing costs and potentially hindering rapid and effective repair and replacement in emergencies. Furthermore, some explosion-proof doors neglect functions such as thermal insulation, which can lead to a decline in the performance of door materials in high-temperature and high-pressure environments such as nuclear power plants, further affecting the performance of the explosion-proof door. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the purpose of this invention is to provide a high energy-consuming explosion-proof door with a self-resetting assembly and metal damper that has good energy dissipation effect, excellent explosion-proof performance, and a prefabricated design. Another purpose of this invention is to provide a construction method for a self-resetting assembly high energy-consuming explosion-proof door with a metal damper that is easy to construct and maintain.

[0005] Technical Solution: The present invention discloses a self-resetting, assembled high-energy-consuming explosion-proof door with a metal damper, comprising a door body, a top, side slats, and a sandwich panel. The top is located on the upper and lower sides of the door body, the side slats are located on the left and right sides of the door body, and the sandwich panel is located on the back of the door body. The door body includes a cover plate, a metal damper, a self-resetting energy-consuming component, and filling material. The cover plate includes an upper cover plate and a lower cover plate. The metal damper is connected to the lower cover plate. One end of the self-resetting energy-consuming component is connected to the lower cover plate, and the other end is connected to the upper cover plate via a self-tapping screw. The filling material is located between the upper and lower cover plates. The sandwich panel includes a skin plate, an insulating layer, and a core plate. The core plate is located between the skin plate and the upper cover plate, and the insulating layer is located on the surface of the skin plate. The door body, top, side slats, and sandwich panel are connected by tie bolts. The top and side slats strengthen the door structure, improving the rigidity and stability of the door body. The sandwich panel enhances the door body's impact resistance and provides sound and heat insulation.

[0006] Furthermore, the metal damper includes an upper friction plate, a lower friction plate, a left concave slot, and a right concave slot. The upper friction plate is connected to the lower friction plate and is connected to the upper cover plate via a pin, which is inserted into the left and right concave slots. Both the upper and lower friction plates have serrated grooves on their sides, allowing them to slide up and down through these grooves. The metal damper utilizes the relative motion between the upper and lower friction plates to dissipate the energy generated by the explosion. The serrated grooves on the sides of both the upper and lower friction plates generate significant friction during their relative motion, thereby dissipating more energy.

[0007] Furthermore, the self-resetting energy dissipation component includes an annular energy dissipation plate and a telescopic reset rod, with the telescopic reset rod disposed inside the annular energy dissipation plate. The telescopic reset rod includes a spring, a circular outer shell, and a cylindrical rod. The circular outer shell is connected to the annular energy dissipation plate, the spring is located inside the circular outer shell, and the cylindrical rod is slidably installed inside the circular outer shell. The self-resetting energy dissipation component achieves energy dissipation and reset through the combination of the annular energy dissipation plate and the telescopic reset rod. When the annular energy dissipation plate is subjected to impact, it deforms, thereby dissipating energy. When the annular energy dissipation plate deforms, the cylindrical rod compresses the spring. When the impact force disappears, the spring pushes the cylindrical rod to reset, restoring the annular energy dissipation plate to its original shape.

[0008] Furthermore, the sandwich panel is made of high-manganese austenitic twinned induced plasticity steel and has a truss structure with a V-shaped longitudinal section. Preferably, the overall thickness of the sandwich panel is 20 mm, and the wall thickness is 2 mm.

[0009] Furthermore, the filling material is foamed metal, which plays a role in buffering and energy dissipation. Its relative density is in the range of 10% to 30%, and its energy dissipation performance can be adjusted as needed.

[0010] Furthermore, the upper cover plate, lower cover plate, and skin plate are all made of galvanized steel sheet. Preferably, the thickness of the galvanized steel sheet is 5 mm.

[0011] Furthermore, both the metal damper and the self-resetting energy dissipation component are arranged along the height of the door. The metal damper is an integral structure, while the self-resetting energy dissipation component is a segmented structure.

[0012] Furthermore, the upper friction plate, lower friction plate, left concave card slot, and right concave card slot are all made of aluminum alloy. The choice of aluminum alloy material makes the metal damper both lightweight and durable, while also being low in cost.

[0013] The explosion-proof door consists of a door body and a sandwich panel, both designed as a single unit. The door body is equipped with a metal damper and a self-resetting energy-dissipating device, and is filled with foam metal. This multi-stage energy dissipation system provides significant energy reduction. Furthermore, the assembly process utilizes bolts and screws in stages for easy replacement and maintenance later. The invention incorporates a high-temperature resistant insulating ceramic coating layer to block current flow and prevent electrical fires caused by electrical system malfunctions during an explosion. The design of the explosion-proof door, consisting of both the sandwich panel and the door body, provides multiple excellent energy dissipation effects and improves the door's impact resistance.

[0014] The construction method for the aforementioned self-resetting assembled high-energy-consuming explosion-proof door with metal damper includes the following steps:

[0015] Step 1: Lay the galvanized steel sheet flat to form the door body;

[0016] Step 2: Use aluminum alloy to make metal dampers. Arrange multiple metal dampers at even intervals along the height of the door and connect and fix them to the lower cover plate by welding.

[0017] Step 3: Prefabricate the self-resetting energy dissipation device and arrange it between the two metal dampers along the height of the door. The self-resetting energy dissipation device is arranged in sections and is connected and fixed to the lower cover plate by welding.

[0018] Step 4: Align the upper cover plate with the lower cover plate and lay it flat on the metal damper and the self-resetting energy dissipation device. Use the insertion pin to fix the upper cover plate to the metal damper. Connect the upper cover plate to the self-resetting energy dissipation device by setting a self-tapping screw on each section of the self-resetting energy dissipation device.

[0019] Step 5: Ensure that the size of the prefabricated sandwich panel corresponds to the size of the door. The sandwich panels are arranged in a truss form. An insulation layer is set on the outside of the skin panel. The sandwich panel composed of the sandwich panel and the skin panel is connected to the top cover plate by welding.

[0020] Step 6: Insert the prefabricated side braces into both sides of the door body and connect and fix them with prefabricated high-strength tie bolts. Install the lower cap on the bottom side of the explosion-proof door, pour foam metal filler material into the top side of the explosion-proof door, and seal the top side of the explosion-proof door with the upper cap to complete the production of the self-resetting assembled high-energy-consuming explosion-proof door with metal damper.

[0021] Preferably, in step three, each segment of the self-resetting energy dissipation device is 160mm long, with a 30mm gap between each segment, for a total of ten segments.

[0022] Working principle: When an explosion occurs in a nuclear power plant, the insulation layer can effectively block the flow of current and prevent electrical fires. When the explosion is small, the sandwich panel and foam metal inside the sandwich panel can absorb some of the energy, while the metal damper and annular energy dissipation plate inside the door body enhance the structural rigidity of the explosion-proof door and ensure its stability. When the explosive force increases, the pressure load acting on the explosion-proof door is initially offset by the sandwich panel and foam metal. Subsequently, the remaining load is transferred to the door body. At this time, the metal damper, the annular energy-dissipating plate, and the foam metal begin to play a more significant energy-dissipating role. Specifically, most of the pressure load is transferred from the upper cover plate to the friction plate of the metal damper, the annular energy-dissipating plate, and the foam metal. The upper and lower friction plates dissipate energy through sliding friction, while the annular energy-dissipating plate dissipates energy through compression deformation. The internal telescopic reset rod restricts the compression deformation of the annular plate, preventing its plastic fracture and enhancing the structure's self-resetting ability. For a small portion of tensile load, the upper and lower friction plates of the metal damper will engage in advance to dissipate energy. The metal damper and the upper cover plate transmit force through a pin, while the annular energy-dissipating plate dissipates energy through bulging deformation. Similarly, the telescopic reset rod also restricts the bulging deformation of the annular plate, ensuring the integrity of the structure.

[0023] Beneficial effects: Compared with the prior art, the present invention has the following significant features:

[0024] 1. By using a metal damper and a self-resetting energy dissipation device, the present invention can maximize the energy dissipation capacity and effectively block the impact damage caused by the explosion. This design not only improves the overall protection performance of the explosion-proof door, but also significantly enhances its ability to resist explosion impact through synergistic effect.

[0025] 2. The sandwich panel installed on the front side of the door can serve as the first line of defense, bearing the impact force first when an explosion occurs, thereby reducing the damage to the door itself. In addition, the annular energy-dissipating plate in the self-resetting energy-dissipating device effectively dissipates energy when compressed and deformed, while the telescopic reset rod can limit its deformation, prevent plastic fracture, and improve the self-resetting ability of the door.

[0026] 3. When the door is subjected to a large explosive impact, the metal damper can respond quickly to offset most of the impact force, further improving the energy dissipation and shock absorption effect of the explosion-proof door and effectively reducing the impact of the explosion on the surrounding environment and facilities.

[0027] 4. In response to the complex situations that may arise during an explosion, this invention comprehensively addresses and counteracts the tensile force through a pin connection, a self-resetting energy dissipation device connected to the self-tapping screws of the upper cover plate, and the meshing design of the upper and lower friction plates in the metal damper, ensuring the stability of the explosion-proof door under various conditions.

[0028] 5. By applying a 2mm high-temperature resistant insulating ceramic coating to the outside of the sandwich panel, the explosion-proof door not only enhances its adaptability to complex explosion environments, but also significantly reduces the risk of electrical fires.

[0029] 6. The side beams, tops, door body and interlayer plates are connected by high-strength bolts, while the top cover plate and metal damper are connected by pins. This design makes the explosion-proof door more convenient and quick to assemble, repair and replace.

[0030] 7. The metal damper is made of aluminum alloy, which effectively reduces the weight of the explosion-proof door; while the annular energy-dissipating plate, pin shaft and sandwich plate are made of a new type of high-manganese austenitic twin-induced plastic steel material. This material not only has high strength and good plasticity, but also has high energy absorption efficiency and high temperature resistance, which further improves the performance of the explosion-proof door. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 This is a cross-sectional view of the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of the door body 1 of the present invention;

[0034] Figure 4 This is a schematic diagram of the metal damper 12 of the present invention;

[0035] Figure 5 This is a schematic diagram of the self-resetting energy dissipation component 13 of the present invention;

[0036] Figure 6 This is a schematic diagram of the telescopic reset rod 132 of the present invention;

[0037] Figure 7 This is a schematic diagram of the sandwich panel 4 structure of the present invention;

[0038] Figure 8 This is a schematic diagram of the side brace 3 structure of the present invention;

[0039] Figure 9This is a flat view of the side support 3 of the present invention;

[0040] Figure 10 This is a construction flowchart of the present invention. Detailed Implementation

[0041] like Figures 1-3 A self-resetting, assembled high-energy-consuming explosion-proof door with a metal damper includes a door body 1, a top 2, side supports 3, and a sandwich panel 4. The door body 1, top 2, side supports 3, and sandwich panel 4 are connected by tie bolts. The door body 1 includes a cover plate 11, a metal damper 12, a self-resetting energy-consuming component 13, and filling material 14. The cover plate 11 consists of an upper cover plate 111 and a lower cover plate 112. The lower end of the metal damper 12 is connected to the lower cover plate 112 by welding, and the upper end of the self-resetting energy-consuming component 13 is connected to the lower cover plate 112 by welding. The upper end is connected to the upper cover plate 111 by self-tapping screws. The filling material 14 is disposed between the upper cover plate 111 and the lower cover plate 112. The dimensions of the door body 1 are 800×1900×80mm; the dimensions of the sandwich panel 4 are 800×1900×25mm; the dimensions of the insulation layer 42 are 800×1900×2mm; both the upper cover plate 111 and the lower cover plate 112 are galvanized steel sheets with a thickness of 5mm. The upper cover plate 111 is provided with four pairs of lugs to enhance the connection and stability. The filling material 14 is foam metal, which plays a role in buffering and energy dissipation. Its relative density is in the range of 10% to 30%, and its energy dissipation performance can be adjusted as needed.

[0042] like Figure 4 The metal damper 12 includes an upper friction plate 121, a lower friction plate 122, a left concave slot 123, and a right concave slot 124. The height of the metal damper 12 is 70mm. The upper friction plate 121 is connected to the lower friction plate 122. The lower friction plate 122 is connected to the lower cover plate 112 by welding. The upper friction plate 121 is connected to the upper cover plate 111 by a pin 5, which is inserted into the left concave slot 123 and the right concave slot 124. The sides of both the upper friction plate 121 and the lower friction plate 122 are provided with serrated grooves, which allow them to slide up and down. The upper friction plate 121, the lower friction plate 122, the left concave slot 123, and the right concave slot 124 are all made of aluminum alloy. The choice of aluminum alloy makes the metal damper 12 both lightweight and durable, while also reducing costs.

[0043] like Figures 5-6The self-resetting energy dissipation component 13 includes an annular energy dissipation plate 131 and a telescopic reset rod 132, which is disposed inside the annular energy dissipation plate 131. The self-resetting energy dissipation component 13 adopts a segmented design, with each segment being 160mm long and 70mm high, and the distance between adjacent segments being 30mm. Within each segment, the telescopic reset rods 132 are arranged symmetrically, with two rods per segment to ensure structural balance and stability. The telescopic reset rod 132 includes a spring 1321, a circular outer shell 1322, and a cylindrical rod 1323. The center of the telescopic reset rod 132 maintains a 25mm distance from the boundary of the annular energy dissipation plate 131 and is securely fixed by welding. The lower end of the annular energy-consuming plate 131 is welded to the lower cover plate 112 to ensure the integrity of its structure. Its upper end is fixed to the upper cover plate 111 by a self-tapping screw located in the middle, thereby realizing a reliable connection between the device and the cover plate 11. This not only ensures the stability of the self-resetting energy-consuming device 13, but also improves its energy dissipation and reset efficiency. The self-resetting energy-consuming component 13 realizes energy consumption and reset through the combination of the annular energy-consuming plate 131 and the telescopic reset rod 132. When the annular energy-consuming plate 131 is impacted, it will deform, thereby consuming energy. When the annular energy-consuming plate 131 deforms, the cylindrical rod 1323 will compress the spring 1321. When the impact force disappears, the spring 1321 will push the cylindrical rod 1323 to reset, so that the annular energy-consuming plate 131 returns to its original shape.

[0044] like Figure 7 The sandwich panel 4 includes a skin panel 41, an insulation layer 42, and a core panel 43. The core panel 43 is disposed between the skin panel 41 and the upper cover plate 111, and the insulation layer 42 is disposed on the surface of the skin panel 41. The upper end of the core panel 43 is welded to the skin panel 41, and the lower end is welded to the upper cover plate 111. The core panel 43 is made of high-manganese austenitic twinned induced plasticity steel and is designed in a truss form with a V-shaped longitudinal section. It has advantages such as high tensile strength, good plasticity, high energy absorption efficiency, and high temperature resistance, which can ensure stable energy absorption performance under various sudden and complex conditions. The overall thickness of the core panel 43 is 20mm, and the wall thickness is 2mm. The insulation layer 42 is made of high-temperature resistant insulating ceramic coating with a thickness of 2mm, which can provide good insulation at high temperatures, block current flow, and prevent electrical fires.

[0045] like Figures 8-9 The cross-sectional shape of the side brace 3 is E-shaped, and it is connected to the skin plate 41, the upper cover plate 111 and the lower cover plate 112 respectively by high-strength bolts.

[0046] like Figure 10 The construction method of the self-resetting assembled high-energy-consuming explosion-proof door with metal damper in this embodiment includes the following steps:

[0047] Step 1: Lay the galvanized steel sheet flat as door body 1, ensuring the material dimensions are 800×1900×5mm.

[0048] Step 2: Use aluminum alloy to make metal dampers 12 with dimensions of 40×1900×70mm. Four metal dampers 12 are evenly arranged along the height of the door with a spacing of 128mm, and are connected and fixed to the lower cover plate 112 by welding.

[0049] Step 3: Prefabricate the self-resetting energy dissipation device 13 and arrange it between the two metal dampers 12 along the height direction of the door. The self-resetting energy dissipation device 13 is arranged in segments, each segment is 160mm long and the gap between each segment is 30mm, for a total of ten segments. The self-resetting energy dissipation device 13 is connected and fixed to the lower cover plate 112 by welding.

[0050] Step 4: Align the upper cover plate 111 with the lower cover plate 112 and lay it flat on the metal damper 12 and the self-resetting energy dissipation device 13. Use the insertion pin 5 to fix the upper cover plate 111 to the metal damper 12. Connect the upper cover plate 111 to the self-resetting energy dissipation device 13 by setting a self-tapping screw on each section of the self-resetting energy dissipation device 13.

[0051] Step 5: Prefabricate the sandwich panel 4, ensuring its dimensions correspond to the door dimensions. The core panel 43 is made of a new type of high-manganese austenitic twinned induced plastic steel, arranged in a truss configuration with a total truss thickness of 20mm. A 2mm thick insulating layer is placed on the outside of the skin panel 41. The sandwich panel 4, composed of the core panel 43 and the skin panel 41, is then welded to the top cover plate 111.

[0052] Step 6: Insert the prefabricated side mullions 3 into both sides of the door body 1 and connect and fix them with prefabricated high-strength tie bolts. Install the lower cap 2 on the lower side of the explosion-proof door. Pour foam metal filling material into the upper side of the explosion-proof door and seal the upper side of the explosion-proof door with the upper cap 2 to complete the production of the self-resetting assembled high-energy-consuming explosion-proof door with metal damper.

Claims

1. A self-resetting, assembled high-energy-consuming explosion-proof door with a metal damper, characterized in that: The door includes a door body (1), a top (2), side braces (3), and a sandwich panel (4). The top (2) is located on the upper and lower sides of the door body (1), the side braces (3) are located on the left and right sides of the door body (1), and the sandwich panel (4) is located on the back of the door body (1). The door body (1) includes a cover plate (11), a metal damper (12), a self-resetting energy dissipation component (13), and a filling material (14). The cover plate (11) includes an upper cover plate (111) and a lower cover plate (112). The metal damper (12) and the lower cover plate... (112) are connected, one end of the self-resetting energy dissipation component (13) is connected to the lower cover plate (112), and the other end is connected to the upper cover plate (111) by a self-tapping screw. The filling material (14) is disposed between the upper cover plate (111) and the lower cover plate (112). The sandwich panel (4) includes a skin plate (41), an insulating layer (42) and a core plate (43). The core plate (43) is disposed between the skin plate (41) and the upper cover plate (111), and the insulating layer (42) is disposed on the surface of the skin plate (41). The metal damper (12) includes an upper friction plate (121), a lower friction plate (122), a left concave card slot (123), and a right concave card slot (124). The upper friction plate (121) is connected to the lower friction plate (122). The upper friction plate (121) is connected to the upper cover plate (111) by a pin (5). The pin (5) is inserted into the left concave card slot (123) and the right concave card slot (124). The metal damper (12) uses the relative motion between the upper friction plate (121) and the lower friction plate (122) to consume the energy generated by the explosion. The sides of the upper friction plate (121) and the lower friction plate (122) are provided with serrated grooves, which enable them to generate greater friction when moving relative to each other, thereby consuming more energy. The self-resetting energy-consuming component (13) includes an annular energy-consuming plate (131) and a telescopic reset rod (132), wherein the telescopic reset rod (132) is disposed inside the annular energy-consuming plate (131); The sandwich panel (43) is made of high-manganese austenitic twinned induced plastic steel and is a truss structure with a V-shaped longitudinal section.

2. The self-resetting assembled high-energy-consuming explosion-proof door with a metal damper according to claim 1, characterized in that: The telescopic reset rod (132) includes a spring (1321), a circular outer shell (1322) and a cylindrical rod (1323). The circular outer shell (1322) is connected to the annular energy-consuming plate (131). The spring (1321) is located inside the circular outer shell (1322), and the cylindrical rod (1323) is slidably installed inside the circular outer shell (1322).

3. The self-resetting assembled high-energy-consuming explosion-proof door with a metal damper according to claim 1, characterized in that: The filler material (14) is foamed metal with a relative density in the range of 10% to 30%.

4. The self-resetting assembled high-energy-consuming explosion-proof door with a metal damper according to claim 1, characterized in that: The upper cover plate (111), lower cover plate (112) and skin plate (41) are all made of galvanized steel sheet.

5. A self-resetting, assembled high-energy-consuming explosion-proof door with a metal damper according to claim 1, characterized in that: The metal damper (12) and the self-resetting energy dissipation component (13) are both arranged along the height direction of the door.

6. A construction method for a self-resetting assembled high-energy-consuming explosion-proof door with a metal damper according to any one of claims 1 to 5, characterized in that: Includes the following steps: Step 1: Lay the galvanized steel sheet flat as the lower cover plate (112). Step 2: Use aluminum alloy to make metal dampers (12), and arrange multiple metal dampers (12) evenly at intervals along the height direction of the door, and connect and fix them to the lower cover plate (112) by welding; Step 3: Prefabricate the self-resetting energy dissipation component (13) and arrange it between the two metal dampers (12) along the height direction of the door. The self-resetting energy dissipation component (13) is arranged in segments and is connected and fixed to the lower cover plate (112) by welding. Step 4: Align the upper cover plate (111) with the lower cover plate (112) and lay it flat on the metal damper (12) and the self-resetting energy dissipation component (13). Use the insertion pin (5) to fix the upper cover plate (111) to the metal damper (12). Connect the upper cover plate (111) to the self-resetting energy dissipation component (13) by setting a self-tapping screw on each section of the self-resetting energy dissipation component (13). Step 5: Ensure that the size of the prefabricated sandwich panel (4) corresponds to the size of the door body (1), the sandwich panel (43) is arranged in the form of a truss, an insulating layer is set on the outside of the skin panel (41), and the sandwich panel (4) composed of the sandwich panel (43) and the skin panel (41) is connected to the top cover plate (111) by welding. Step 6: Insert the prefabricated side braces (3) into both sides of the door body (1) and fix them with prefabricated high-strength tie bolts. Install the lower cap (2) on the lower side of the explosion-proof door. Pour foam metal filling material into the upper side of the explosion-proof door and seal the upper side of the explosion-proof door with the upper cap (2) to complete the production of the self-resetting assembled high-energy-consuming explosion-proof door with metal damper.

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