Explosion-proof composite board and explosion-proof door

Abstract

The utility model relates to an explosion-proof composite board and an explosion-proof door, the explosion-proof composite board comprises an aluminum honeycomb interlayer and skins located on the two sides of the aluminum honeycomb interlayer, the aluminum honeycomb interlayer comprises a plurality of layers of aluminum honeycomb boards which are sequentially stacked, and the honeycomb densities of the multiple layers of aluminum honeycomb boards are different. The technical problem that the explosion-proof effect is poor in the prior art can be solved.

Description

Technical Field

[0001] This utility model belongs to the field of explosion-proof door technology, specifically relating to an explosion-proof composite board and an explosion-proof door. Background Technology

[0002] Explosion-proof doors are explosion-proof protective devices designed to withstand accidental explosions of external equipment in industrial buildings, ensuring the safety of personnel and the integrity of internal equipment, protecting them from the blast wave and effectively preventing the continuation of explosion hazards. They are widely used in various industries. As people place increasing emphasis on production safety, the requirements for explosion-proof doors are also becoming more stringent.

[0003] Currently, Chinese patent CN205558717U discloses an explosion-proof door, including an outer door panel; a buffer layer connected to the outer door panel at one end; an inner door panel connected to the buffer layer at the end away from the outer door panel; and a sliding connection mechanism connected to the outer door panel at one end and the inner door panel at the other end. This explosion-proof door has a simple structure and uses a sliding connection mechanism to connect the inner and outer door panels, requiring minimal maintenance. However, it has the following drawbacks: the buffer layer inside the explosion-proof door uses only sponge and springs for cushioning, which has limited cushioning effect, resulting in low explosion-proof performance. Utility Model Content

[0004] In view of the various shortcomings of existing technologies, an explosion-proof composite panel and an explosion-proof door are proposed to solve the technical problem of poor explosion-proof effect in existing technologies.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] In a first aspect, this utility model provides an explosion-proof composite panel, including an aluminum honeycomb interlayer and skins located on both sides of the aluminum honeycomb interlayer. The aluminum honeycomb interlayer includes multiple layers of aluminum honeycomb panels stacked sequentially, and the honeycomb densities of the multiple layers of aluminum honeycomb panels are different.

[0007] The technical solution is further configured such that a partition is provided between the aluminum honeycomb panels of adjacent layers.

[0008] The technical solution is further configured such that the multi-layer aluminum honeycomb panels are arranged in order of increasing or decreasing honeycomb density.

[0009] Secondly, this utility model provides an explosion-proof door, including a door leaf, the door leaf including a load-bearing layer and door panel layers located on both sides of the load-bearing layer, the load-bearing layer being made of the aforementioned explosion-proof composite board.

[0010] The technical solution is further configured such that the door panel layer includes an outer door panel layer and an inner door panel layer, and the outer door panel layer is located on the side of the load-bearing layer close to the external space;

[0011] Along the direction from the outer door panel layer to the inner door panel layer, the multi-layer aluminum honeycomb panels are arranged in order of increasing honeycomb density.

[0012] The technical solution is further configured such that the surface of the outer door panel is covered with a corrosion-resistant coating.

[0013] The technical solution is further configured such that a plurality of connecting columns are provided on the door leaf, and the connecting columns pass through the door panel layer and the load-bearing layer in sequence.

[0014] The technical solution is further configured to include a door frame, which is located around the door leaf. A hinge is provided at the connection between the door leaf and the door frame, and a door lock is also provided between the door leaf and the door frame.

[0015] The beneficial effects of this utility model are:

[0016] Aluminum honeycomb panels with different honeycomb densities form an aluminum honeycomb sandwich layer, which can fully absorb the energy of an explosion, prevent the further transmission of destructive energy, and improve explosion-proof performance. At the same time, the partition forms a reflective barrier to the shock wave, reducing the transmission rate of the shock wave and thus reducing the impact damage from the shock wave. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the explosion-proof composite panel in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the explosion-proof door in an embodiment of this utility model;

[0019] Figure 3 This is an assembly diagram of the connecting column, door panel layer and load-bearing layer in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the honeycomb lattice in an embodiment of this utility model;

[0021] Figure 5 yes Figure 2 A partial schematic diagram of point A in the middle.

[0022] In the attached diagram: 100, skin; 101, first skin; 102, second skin; 200, connecting column; 300, aluminum honeycomb sandwich layer; 301, low-density aluminum honeycomb panel; 302, medium-density aluminum honeycomb panel; 303, high-density aluminum honeycomb panel; 400, partition; 500, inner door panel layer; 600, load-bearing layer; 700, outer door panel layer; 800, U-shaped edge banding. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0024] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0025] According to an embodiment of this utility model, an explosion-proof composite panel is provided. Please refer to [link / reference]. Figure 1 It includes an aluminum honeycomb interlayer 300 and skins 100 located on both sides of the aluminum honeycomb interlayer 300. The aluminum honeycomb interlayer 300 includes multiple layers of aluminum honeycomb panels stacked sequentially, and the honeycomb density of each layer of aluminum honeycomb panels is different.

[0026] Furthermore, the explosion-proof composite panel is a hollow composite structure panel with a hexagonal aluminum honeycomb sandwich as the core material, covered with 100mm skin on both sides, and brazed together at high temperature.

[0027] Furthermore, the skin 100 can be made of steel plate, aluminum plate, or other hard sheet material that can withstand the impact of explosive fragments, and is welded together after sheet metal forming. Specifically, the skin 100 includes a first skin 101 and a second skin 102.

[0028] It should be noted that aluminum honeycomb panels with different honeycomb densities form an aluminum honeycomb sandwich layer 300, which can fully absorb the energy of an explosion, prevent the further transmission of destructive energy, and improve explosion-proof performance.

[0029] In the explosion-proof composite panel of this embodiment, please refer to Figure 1 A partition 400 is set between adjacent aluminum honeycomb panels. Aluminum honeycomb panels of different densities are stacked together through the partition 400, covered with an outer skin 100, and then brazed together at high temperature to form an explosion-proof composite panel with a hollow composite structure and multiple honeycomb densities.

[0030] Furthermore, the baffle 400 reflects and blocks the shock wave, reducing the transmission rate of the shock wave and thus reducing the impact damage of the shock wave. It can be made of steel plate, aluminum plate or other hard sheet material that can meet the requirements of explosive fragments.

[0031] Specifically, when the partition 400 is made of steel plate, its thickness is twice the maximum thickness of the aluminum foil in adjacent aluminum honeycomb panels with different honeycomb densities, in order to withstand the shear force of the honeycomb lattice on it.

[0032] Specifically, when the partition 400 is made of aluminum plate, its thickness is 5 times the maximum thickness of aluminum foil in adjacent aluminum honeycomb panels with different honeycomb densities, in order to withstand the shear force of the honeycomb lattice on it.

[0033] In the explosion-proof composite panel of this embodiment, please refer to Figure 1 The higher the honeycomb density, the more impact energy it can absorb. Multi-layer aluminum honeycomb panels are arranged in order of increasing or decreasing honeycomb density.

[0034] Further, please refer to Figure 4 If the thickness of the aluminum foil used in the aluminum honeycomb panel is set to 'a' and the side length of the honeycomb lattice is 'b', then the honeycomb density = 1.54 * a * 2.7 / b. By adjusting the size of the honeycomb lattice and the thickness of the aluminum foil, aluminum honeycomb panels with different honeycomb densities can be obtained.

[0035] Furthermore, aluminum honeycomb panels can be configured with 2, 3, 4 or even more layers.

[0036] Specifically, the aluminum honeycomb panel has three layers: a low-density aluminum honeycomb panel 301, a medium-density aluminum honeycomb panel 302, and a high-density aluminum honeycomb panel 303. The low-density aluminum honeycomb panel 301 is welded to the first skin 101, and the high-density aluminum honeycomb panel 303 is welded to the second skin 102. Partitions 400 are provided between the low-density aluminum honeycomb panel 301 and the medium-density aluminum honeycomb panel 302, and between the medium-density aluminum honeycomb panel 302 and the high-density aluminum honeycomb panel 303.

[0037] According to an embodiment of this utility model, an explosion-proof door is provided. Please refer to [link / reference]. Figures 1 to 5 The door includes a door leaf, which includes a load-bearing layer 600 and door panel layers located on both sides of the load-bearing layer 600. The load-bearing layer 600 is made of the explosion-proof composite board.

[0038] Furthermore, the door panel layer includes an outer door panel layer 700 and an inner door panel layer 500, with the outer door panel layer 700 located on the side of the load-bearing layer 600 near the external space.

[0039] Furthermore, the door leaf can be configured as a flat or curved structure.

[0040] Furthermore, the outer door panel layer 700 and the inner door panel layer 500 can be made of steel plate, aluminum plate, or other hard sheet material that can withstand the impact of explosive fragments, and are welded together after sheet metal forming. At the same time, the surface of the outer door panel layer 700 is covered with a corrosion-resistant coating.

[0041] It should be noted that aluminum honeycomb panels with different honeycomb densities are used as the load-bearing structure of the door to resist and absorb the impact kinetic energy during the explosion. The outer door panel layer 700 is used to resist the attack and damage of high-speed impact objects such as gravel and dust that are carried in the explosion.

[0042] In the explosion-proof door of this embodiment, please refer to Figures 1 to 5 Along the direction from the outer door panel layer 700 to the inner door panel layer 500, the multi-layer aluminum honeycomb panels are arranged in order of increasing honeycomb density.

[0043] When an explosion occurs, the shock wave impacts the outer door panel layer 700. The deformation of the outer door panel layer 700 compresses the internal multi-density load-bearing layer 600, causing the stacked layers of the load-bearing layer 600 perpendicular to the outer door panel layer 700 to collapse, thus absorbing the impact energy. Because the honeycomb density of the aluminum honeycomb panel d increases from the outside to the inside, its compressive strength increases, and the force required for collapse also increases, thus absorbing more impact energy. Simultaneously, the multi-layer partitions 400 form a partition wall effect, creating multiple reflections and blocking of the shock wave, reducing the transmission rate of the shock wave, and thus reducing the impact damage to the protected objects behind the door. Therefore, the explosion-proof door has the following properties: 1. Energy absorption: When an explosion occurs, it can absorb the explosion energy, reducing the transmission of the shock wave into the building, providing passive protection and energy absorption. 2. Using aluminum honeycomb panels as the main material, it is high-strength and lightweight, facilitating installation and maintenance. 3. Good sound insulation: The aluminum honeycomb panel is manufactured in a vacuum environment, containing many sealed crystal lattices. These lattices are in a vacuum state, with no sound propagation medium. 4. Environmentally friendly and recyclable.

[0044] In the explosion-proof door of this embodiment, please refer to Figures 1 to 5 The door leaf is provided with a plurality of connecting posts 200, which sequentially penetrate the door panel layer and the load-bearing layer 600.

[0045] Furthermore, the door panel layer and the load-bearing layer 600 are connected together by connecting columns 200 to form an integral structure. This connection is not limited to welding, riveting, or bolting. The connection of the door panel layer and the load-bearing layer 600 into a whole by the connecting columns 200 increases the safety factor.

[0046] In the explosion-proof door of this embodiment, please refer to Figures 1 to 5 It also includes a door frame, which is located around the door leaf. A hinge is provided at the connection between the door leaf and the door frame, and a door lock is also provided between the door leaf and the door frame.

[0047] Furthermore, the edge of the outer door panel layer 700 extends in a direction perpendicular to its body to wrap the load-bearing layer 600 and the inner door panel layer 500; at the same time, at the hinge installation position, the outer door panel layer 700, the load-bearing layer 600 and the inner door panel layer 500 are all provided with installation grooves, and U-shaped edge banding 800 is provided in the installation grooves.

[0048] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. An explosion-proof composite panel, characterized by, The aluminum honeycomb sandwich comprises aluminum honeycomb plates in multiple layers, and the honeycomb density of the multiple layers is different.

2. The explosion-resistant composite panel of claim 1, wherein, The aluminum honeycomb plates of adjacent layers are separated by a partition.

3. Explosion-proof composite panel according to claim 1 or 2, characterized in that The multiple layers of aluminum honeycomb plates are arranged in order of increasing or decreasing honeycomb density.

4. A flame arrestor characterized by, The door leaf comprises a load-bearing layer and door plate layers on both sides of the load-bearing layer, and the load-bearing layer is made of the explosion-proof composite board of any one of claims 1-3.

5. A damper according to claim 4, characterised in that The door plate layers comprise an outer door plate layer and an inner door plate layer, and the outer door plate layer is located on the side of the load-bearing layer close to the external space. In the direction from the outer door plate layer to the inner door plate layer, the multiple layers of aluminum honeycomb plates are arranged in order of increasing honeycomb density.

6. A damper according to claim 5, characterised in that The surface of the outer door plate layer is covered with a corrosion-resistant coating.

7. The explosion door of claim 4, wherein The door leaf is provided with a plurality of connecting columns, which sequentially penetrate the door plate layers and the load-bearing layer.

8. The explosion door of claim 4, wherein, The door frame is further provided with a hinge at the connection between the door leaf and the door frame, and a door lock between the door leaf and the door frame.

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