High-strength fireproof color steel sandwich panel

Abstract

The utility model relates to the field of high-strength fireproof color steel sandwich panels, in particular to a high-strength fireproof color steel sandwich panel. Comprising a color steel plate for providing external protection and supporting functions; the fireproof layer is positioned on the inner side of the color steel plate and is made of a high-temperature-resistant inorganic material to isolate a fire source; the heat insulation layer is adjacent to the fireproof layer and is made of a low-heat-conductivity material so as to slow down heat transfer to the center of the plate; the reinforcing frame is arranged in the heat insulation layer or integrally formed with the heat insulation layer and used for improving the mechanical strength and stability of the whole structure and preventing the structure from deforming due to strength reduction at a high temperature; the fireproof sealing edge is arranged around the edge of the sandwich panel, so that the completeness of the color steel sandwich panel is ensured, and the fireproof effect of the side edge is improved; and the color steel plate, the fireproof layer, the heat insulation layer and the reinforcing frame are firmly combined through the binder, so that all the components form the stable integrated composite board. Through the scheme of the embodiment of the invention, the problem that the structural strength of the high-strength fireproof color steel sandwich panel is reduced under a high-temperature condition can be solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to high strength fireproof color steel sandwich panel technical field, especially relates to a high strength fireproof color steel sandwich panel. BACKGROUND

[0002] Such panel has the characteristics of light weight, good heat insulation performance and corrosion resistance, and is widely used on the wall and roof of steel structure factory. But this kind of sandwich panel faces the problem that under high temperature, especially in the temperature range of 300°C to 600°C, the yield stress and modulus of the color steel will decrease significantly, the structural bearing capacity will decrease, and the safety of the building will be seriously reduced. In order to solve this problem, we can start from the improvement of the material, optimize the base material and surface coating process, improve the heat resistance and deformation resistance of the color steel plate itself, or use new composite materials to enhance the overall structural rigidity of the fireproof core material. In addition, we can also consider increasing the fireproof partition and separation, and improving the design strength of the joint connection between the sandwich panel and the main frame to improve the stability and safety of the overall system.

[0003] After searching, the present citation publication number is CN214195210U, the publication date is September 14, 2021, and the name is a fireproof color steel sandwich panel. It comprises a middle layer and a metal panel. The outer wall surface of the middle layer is provided with a shielding anti-interference layer. The end surface of the metal panel facing the middle layer is provided with a high-strength compression-resistant layer. The end surface of the high-strength compression-resistant layer facing the middle layer is provided with a heat-insulating and flame-retardant layer. A partition cavity is provided between the shielding anti-interference layer and the heat-insulating and flame-retardant layer. A side baffle and an air bag damping group are provided in the partition cavity. The air bag damping group is composed of an air bag strip and an air pipe. The end of the side baffle facing the air bag strip is provided with a smooth layer. Not only does it improve the shielding anti-interference of the color steel sandwich panel used to build the box-type power distribution room, but it also avoids the direct transmission of outdoor high-temperature environment to the internal middle layer, thereby avoiding the self-ignition of the middle layer in a high-temperature environment for a long time, improving the heat-insulating and fireproof properties of the color steel sandwich panel, and effectively improving the compression resistance and shock resistance of the color steel sandwich panel.

[0004] The above structure cannot reduce the influence of external heat on the inside of the panel, and cannot reduce the risk of fire spreading. When the panel is subjected to fire impact for a long time, it is easy to lose the supporting structure or cause serious damage, reducing the durability and toughness of the overall panel structure. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model provides a high-strength fireproof color steel sandwich panel. The color steel plate is provided with a fire-resistant layer on the inside. The fire-resistant layer is made of high-temperature-resistant inorganic material. The fire-resistant layer is adjacent to a heat-insulating layer on one side. The heat-insulating layer is made of low-thermal-conductivity material, and the heat-insulating layer is provided with a reinforcing frame inside the wall. The reinforcing frame is installed along the inner edge of the heat-insulating layer.

[0006] The fireproof sealing edge is provided around the edge of the color steel plate, the fireproof sealing edge comprises a fireproof insert strip and a fireproof sealing cover strip, the fireproof sealing edge is closely inlaid with the plate to form a sealed edge, the color steel plate, the fireproof layer, the heat insulation layer and the reinforcing frame are attached with an adhesive, the adhesive has high-temperature resistance, the color steel plate is internally provided with a grid structure, and the grid structure is made of metal material.

[0007] Further, the fireproof layer comprises aluminum silicate fiber plates and glass cotton fiber layers, and the aluminum silicate fiber plates and the glass cotton fiber layers are alternately arranged and staggered with each other.

[0008] Further, the heat insulation layer uses aerogel as a main heat insulation material and comprises microsphere particles dispersedly arranged in the heat insulation layer.

[0009] Further, the reinforcing frame comprises a plurality of groups of reinforcing ribs, the reinforcing ribs are arranged in a horizontal and vertical staggered mode, diagonal bracing members are additionally arranged at the intersection points of the reinforcing ribs, the components of the reinforcing frame are connected by means of a slot splicing connection mode, and a recess matching a protrusion structure is arranged on the reinforcing frame.

[0010] Further, the adhesive is a novel epoxy-based composite adhesive having intumescent flame-retardant properties, and the novel epoxy-based composite adhesive can form a more stable and continuous sealed space network structure after being heated.

[0011] Further, the color steel plate and the heat insulation layer are connected with a positioning clamp, and the positioning clamp adopts a pre-pressing fastening technology.

[0012] The beneficial effects of the present application are as follows:

[0013] 1. In production, the parts with preset protrusions are prepared first, and then inserted into the recesses in the corresponding positions, so that stable and firm assembly is realized through physical friction and accurate size design. In addition, waterproof material can be used at the contact position of the recess and the protrusion to enhance the sealing effect and ensure that the panel will not be affected by moisture to cause performance degradation, thereby realizing more excellent fire resistance and structural integrity.

[0014] 2. In order to further improve the overall performance of the panel, especially to enhance the stability and anti-deformation ability of the side surface under extreme conditions, the panel adopts a special packaging design to ensure that it can still maintain good mechanical properties and heat insulation effect when being contacted by high temperature or fire source.

[0015] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Figure 1 A structure schematic diagram of the color steel plate according to the embodiment of the present application is shown;

[0018] Figure 2 A cross-sectional schematic diagram of the reinforcing frame according to the embodiment of the present application is shown;

[0019] Figure 3 A structure schematic diagram of the grid structure according to the embodiment of the present application is shown;

[0020] Figure 4 A cross-sectional schematic diagram of the fire-resistant layer according to the embodiment of the present application is shown;

[0021] Figure 5 A schematic diagram of the engagement of the protrusion and the groove according to the embodiment of the present application is shown;

[0022] Figure 6 A cross-sectional schematic diagram of the fireproof insert strip and the fireproof edge covering strip according to the embodiment of the present application is shown.

[0023] In the figure: 1, color steel plate; 2, fire-resistant layer; 3, heat insulation layer; 4, reinforcing frame; 5, fireproof edge; 6, adhesive; 7, grid structure; 8, aluminum silicate fiber plate; 9, glass wool fiber layer; 10, microsphere particles; 11, rib; 12, inclined strut member; 13, protrusion; 14, fireproof insert strip; 15, fireproof edge covering strip; 16, new epoxy-based composite adhesive; 17, positioning clamp. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely explained in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] The utility model embodiments provide a kind of high-strength fireproof color steel sandwich panel, exemplary, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 And Figure 6 It includes color steel sheet 1, the inner side of color steel sheet 1 is provided with fire resistance layer 2, fire resistance layer 2 is high-temperature-resistant inorganic material, one side of fire resistance layer 2 is adjacent to heat insulation layer 3, heat insulation layer 3 is made of low thermal conductivity material, and the wall of heat insulation layer 3 is provided with reinforcing frame 4, and reinforcing frame 4 is installed along the inner edge of heat insulation layer 3.

[0026] Specifically, color steel sheet 1 is used to provide external protection and support function, is isolated from fire source by the setting of fire resistance layer 2. Heat insulation layer 3 is made of low thermal conductivity material to slow down heat transfer to the center of the plate. At the same time, by the setting of reinforcing frame 4, the mechanical strength and stability of the whole structure are improved to prevent the structure from deforming due to strength reduction at high temperature.

[0027] The periphery of color steel sheet 1 is provided with fireproof edge sealing 5, fireproof edge sealing 5 is arranged around the edge of color steel sheet 1, adhesive 6 is attached between color steel sheet 1, fire resistance layer 2, heat insulation layer 3 and reinforcing frame 4, and adhesive 6 has high-temperature-resistant property. Grid structure 7 is arranged inside color steel sheet 1, and grid structure 7 is made of metal material.

[0028] Specifically, the setting of fireproof edge sealing 5 ensures the integrity of color steel sandwich panel and improves the effect of side fire prevention. Secondly, adhesive 6 makes each component form a stable integrated composite panel. And by optimizing the material distribution in color steel sheet 1 through grid structure 7, the structural stability is increased to cope with mechanical stress changes in high-temperature environment.

[0029] Fire resistance layer 2 includes aluminum silicate fiber plate 8 and glass cotton fiber layer 9, and aluminum silicate fiber plate 8 and glass cotton fiber layer 9 are arranged alternately, and each layer is staggered. Heat insulation layer 3 uses aerogel as the main heat insulation material and contains microsphere particles 10 dispersed in its interior.

[0030] Specifically, the aluminum silicate fiber board 8 and the glass wool fiber layer 9 are arranged alternately to form multiple barriers to effectively reduce the damage of the flame to the inside of the board and maintain the structural integrity. At the same time, through the microsphere particles 10 inside the heat insulation layer 3, the special configuration of the composite material can more effectively prevent heat conduction and maintain the physical properties of the board at high temperature.

[0031] The reinforcing frame 4 includes a plurality of sets of reinforcing ribs 11 arranged in a crisscross manner, and diagonal bracing members 12 are added at the intersections of the reinforcing ribs 11. The components of the reinforcing frame 4 are connected by a slot splicing method, and a recess matching protrusion 13 structure is provided.

[0032] Specifically, the reinforcing ribs 11 and the diagonal bracing members 12 added at the intersections thereof can greatly improve the stiffness and resistance of the overall frame system without significantly increasing the self-weight of the board, so as to ensure that the panel does not deform at high temperature. At the same time, through the setting of the recess matching protrusion 13 structure of the reinforcing frame 4, the firm assembly and sealing between each component are ensured, which not only maintains high structural strength but also ensures the integrity of the panel under extreme conditions.

[0033] The fireproof edge sealing 5 includes a fireproof insert strip 14 and a fireproof edge sealing cover strip 15, and the fireproof edge sealing 5 is tightly embedded with the board to form a sealed edge. The adhesive 6 adopts a new type of epoxy-based composite adhesive 16 with intumescent flame retardant properties, which can form a more stable and continuous space network framework after being heated.

[0034] Specifically, on the basis of improving the fire resistance of the sandwich board on the side, the resistance to deformation of the board on the side under the action of external force at high temperature is enhanced. At the same time, the internal bonding force of the material is strengthened while effectively blocking the supply of oxygen and the spread of heat during the combustion process, ensuring the stability of the overall structure of the board.

[0035] The color steel plate 1 is connected with the positioning clamp 17 at the joint with the heat insulation layer 3, and the positioning clamp 17 adopts a pre-pressing fastening technology.

[0036] Specifically, the pre-pressing fastening technology is used through the positioning clamp 17 to ensure that the fireproof layer 2, the heat insulation layer 3 and the reinforcing frame 4 achieve the best fitting degree during installation, avoid separation of the parts of the board due to thermal expansion and cold shrinkage effect under the action of high temperature, and ensure that the fireproof performance is maximized.

[0037] Working principle

[0038] In actual operation, when the device is in use, first of all, the high-strength fireproof color steel sandwich panel will expose the color steel plate 1 on the outer surface, which mainly plays a physical protection role to the external environment and gives overall structural support. Then there is the fire-resistant layer 2, which is composed of special high-temperature-resistant inorganic materials, which can form an efficient heat-insulating barrier to resist external flame invasion and effectively prevent the spread of fire. Behind the fire-resistant layer 2 is the key heat-insulating layer 3, which is constructed using materials with low thermal conductivity, which can effectively slow down the speed of heat transfer through the color steel plate 1 and maintain the temperature in the sandwich layer at a lower level over a longer distance. In order to further strengthen the overall rigidity and anti-deformation performance of the color steel sandwich panel, the design of the reinforcing frame 4 is very important: this reinforcing element is embedded in or integrated with the heat-insulating layer 3 adjacent to it, which can enhance the stability of the structure even in harsh conditions and avoid deformation caused by material softening under high temperature conditions.

[0039] In addition, the fireproof edge seal 5 on the edge of the sandwich panel can improve the sealing and fireproof performance of the side structure, effectively reducing the chance of edge fire when encountering a burning event. Finally, the adhesive 6 is responsible for tightly combining the color steel plate 1, fire-resistant layer 2, heat-insulating layer 3, and reinforcing frame 4 into a whole structure, and the stable connection of these components helps to improve the safety factor and service life of the fireproof color steel sandwich panel as a whole. Therefore, in various application scenarios that may face fire threats, such as high-rise building exterior wall panels, industrial site fire partition walls, warehouse fireproof door panels, etc., this innovative product can provide excellent protection performance to ensure the safety and durability of the use occasion.

[0040] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for part of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solution to deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A high-strength fireproof color steel sandwich panel, comprising a color steel plate (1), characterized in that: The color steel plate (1) is provided with a fireproof layer (2) on the inner side, the fireproof layer (2) is made of high-temperature-resistant inorganic material, one side of the fireproof layer (2) is adjacent to a heat insulation layer (3), the heat insulation layer (3) is made of low-thermal-conductivity material, and the heat insulation layer (3) is provided with a reinforcing frame (4) inside the wall, the reinforcing frame (4) is installed along the inner edge of the heat insulation layer (3); The color steel plate (1) is provided with a fireproof layer (2) on the inner side, the fireproof layer (2) is made of high-temperature-resistant inorganic material, one side of the fireproof layer (2) is adjacent to a heat insulation layer (3), the heat insulation layer (3) is made of low-thermal-conductivity material, and the heat insulation layer (3) is provided with a reinforcing frame (4) inside the wall, the reinforcing frame (4) is installed along the inner edge of the heat insulation layer (3); 2. The high-strength fireproof color steel sandwich panel according to claim 1, characterized in that: The fireproof layer (2) comprises an aluminum silicate fiber plate (8) and a glass cotton fiber layer (9), and the aluminum silicate fiber plate (8) and the glass cotton fiber layer (9) are arranged in an alternating manner and are staggered with each other.

3. The high-strength fireproof color steel sandwich panel according to claim 1, characterized in that: The heat insulation layer (3) uses aerogel as the main heat insulation material and contains microsphere particles (10) dispersed in the interior.

4. The high-strength fireproof color steel sandwich panel according to claim 1, characterized in that: The reinforcing frame (4) comprises a plurality of groups of reinforcing ribs (11), the reinforcing ribs (11) are arranged in a horizontal and vertical staggered manner, diagonal bracing members (12) are added at the intersection points of the reinforcing ribs (11), and the components of the reinforcing frame (4) are connected by a slot splicing connection method and are provided with a recess matching protrusion (13) structure.

5. The high-strength fireproof color steel sandwich panel according to claim 1, characterized in that: The adhesive (6) uses a new type of epoxy-based composite adhesive (16) with intumescent flame retardant properties, which can form a more stable and continuous space network structure after being heated.

6. The high-strength fireproof color steel sandwich panel according to claim 1, characterized in that: The color steel plate (1) and the heat insulation layer (3) are connected with a positioning clamp (17), and the positioning clamp (17) uses a pre-pressing fastening technology.

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