High-temperature-resistant aerogel composite thermal insulation material

Abstract

The utility model provides a kind of high-temperature-resistant aerogel composite thermal insulation material, it is related to thermal insulation material technical field, including aerogel felt layer, the both sides surface of aerogel felt layer is adhesively connected with ceramic fiber layer by adhesive agent, the ceramic fiber layer fills in the aperture in aerogel felt layer, the outer surface of ceramic fiber layer on the both sides of aerogel felt layer is adhesively connected with glass fiber mesh cloth layer by adhesive agent, and the tensile resistance, tear resistance of aerogel felt layer is increased by glass fiber mesh cloth layer, the end of aerogel felt layer is provided with the protection mechanism for protecting the end of aerogel felt layer, the protection mechanism is side glass fiber mesh cloth, the end of aerogel felt layer and ceramic fiber layer has U type structure, and the side glass fiber mesh cloth is adhesively connected in above-mentioned U type structure. The problem that aerogel felt layer is easily damaged due to poor mechanical properties in the use process is solved by glass fiber mesh cloth layer and side glass fiber mesh cloth layer.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation materials technology, and in particular to a high-temperature resistant aerogel composite thermal insulation material. Background Technology

[0002] Aerogel has an extremely low thermal conductivity, which can effectively block heat transfer and has a much better insulation effect than traditional insulation materials. Its interior is full of pores and has a low density, so it will not put too much weight on the object when used. It can also maintain good insulation performance and stability in high-temperature environments. At the same time, aerogel materials are waterproof and fireproof, which increases the safety and applicability of use.

[0003] Based on the above characteristics of aerogel, aerogel is commonly used as an insulation material in the insulation industry. This insulation material can be used for building insulation, pipeline insulation, and high-temperature equipment insulation in industrial fields. However, during use, aerogel insulation materials are prone to damage when subjected to internal stress or external force due to the poor mechanical properties of aerogel itself, which greatly shortens the service life of aerogel insulation materials. Utility Model Content

[0004] In order to solve the technical problem that aerogels have poor mechanical properties and are easily damaged when subjected to internal stress or external force, this utility model provides a high-temperature resistant aerogel composite insulation material.

[0005] The high-temperature resistant aerogel composite insulation material provided by this utility model adopts the following technical solution: A high-temperature resistant aerogel composite insulation material includes an aerogel felt layer. Ceramic fiber layers are bonded to both sides of the aerogel felt layer using an adhesive. These ceramic fiber layers protect the aerogel felt layer from high-temperature oxidation and mechanical impact, while also filling the pores within the aerogel felt layer. A glass fiber mesh layer is bonded to the outer surface of the ceramic fiber layers on both sides of the aerogel felt layer using an adhesive. The glass fiber mesh layer increases the tensile and tear resistance of the aerogel felt layer. A protective mechanism is provided at the ends of the aerogel felt layer to protect the ends. This protective mechanism is a side glass fiber mesh with a U-shaped structure at the ends of the aerogel felt layer and ceramic fiber layers. The side glass fiber mesh is bonded within the U-shaped structure using an adhesive.

[0006] Furthermore, the aerogel felt layer is a silica aerogel felt layer.

[0007] Furthermore, nano-titanium dioxide is added to the ceramic fiber layer, thereby improving the radiant heat resistance of the ceramic fiber layer.

[0008] Furthermore, the adhesive is a high-temperature resistant adhesive such as silicone rubber adhesive, which can firmly bond the ceramic fiber layer to the aerogel felt layer and the glass fiber mesh layer to the ceramic fiber layer.

[0009] Furthermore, the aerogel felt layer, ceramic fiber layer, and glass fiber mesh layer are all square structures, wherein the aerogel felt layer and ceramic fiber layer have the same external dimensions, and the glass fiber mesh layer has a larger external dimension than the aerogel felt layer and ceramic fiber layer.

[0010] Furthermore, the four end faces of the glass fiber mesh layer extend to the outside of the end face of the ceramic fiber layer to form protruding ends, through which the ends of the aerogel felt layer and the ceramic fiber layer are formed with a U-shaped structure.

[0011] Furthermore, the bottom of the side fiberglass mesh is bonded to the ends of the aerogel felt layer and the ceramic fiber layer, and both sides of the side fiberglass mesh are bonded to the protruding ends of the fiberglass mesh layer.

[0012] In summary, the beneficial effects of this utility model are as follows: 1. This utility model, by setting a symmetrical double-layer ceramic fiber layer, simultaneously blocks high temperatures on both sides of the aerogel felt layer and fills the pores in the aerogel felt layer, reducing the risk of local overheating and heat convection in the aerogel felt layer, thus extending the service life of this composite insulation material. By using a glass fiber mesh layer as the outermost layer of this composite insulation material, it can resist friction and impact during use, and can restrain the stress generated by thermal expansion and contraction of the aerogel felt layer, reducing the generation of cracks in the aerogel felt layer. This solves the problem of easy damage to the aerogel felt layer due to poor mechanical properties during use, and improves the service life of this composite insulation material.

[0013] 2. This utility model provides a closed protection for the ends of the aerogel felt layer by bonding a glass fiber mesh to the U-shaped structure at the ends of the aerogel felt layer and the ceramic fiber layer, thereby preventing damage to the ends of the aerogel felt layer during use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the present invention; Figure 3 This utility model Figure 2 Enlarged view of part A in the middle; Figure 4 This is an exploded view of the present invention.

[0015] In the figure: 1-Aerogel felt layer; 21-Ceramic fiber layer; 22-Glass fiber mesh layer; 31-Side glass fiber mesh. Detailed Implementation

[0016] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0017] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 The image shows a high-temperature resistant aerogel composite insulation material.

[0018] The first embodiment of this utility model is described below. Figures 1-4 As shown, a high-temperature resistant aerogel composite insulation material is disclosed, comprising an aerogel felt layer 1, which is a silica aerogel felt layer. The silica aerogel felt layer has excellent thermal insulation properties and an extremely low thermal conductivity (close to that of air), effectively blocking heat transfer and enabling stable use in high-temperature environments, while also being suitable for various extreme environments. Ceramic fiber layers 21 are bonded to both sides of the aerogel felt layer 1 using an adhesive. The ceramic fiber layers 21 are high-temperature resistant and high-strength, protecting the aerogel felt layer 1 from high-temperature oxidation and mechanical impact, while also filling the pores in the aerogel felt layer 1 and reducing heat convection. Furthermore, 2% nano-titanium dioxide is added to the ceramic fiber layers 21 to improve their radiant heat resistance.

[0019] A glass fiber mesh layer 22 is bonded to the outer surface of the ceramic fiber layer 21 on both sides of the aerogel felt layer 1 by an adhesive. The glass fiber mesh layer 22 further enhances the overall tensile and tear resistance of the insulation material, preventing the aerogel felt layer 1 from cracking during construction or use. In addition, the glass fiber mesh layer 22 has strong high temperature resistance and can be used in high temperature scenarios.

[0020] Preferably, the adhesive is a high-temperature resistant adhesive such as silicone rubber adhesive, which can firmly bond the ceramic fiber layer 21 to the aerogel felt layer 1 and the glass fiber mesh layer 22 to the ceramic fiber layer 21, ensuring that the interlayer bonding force will not fail at high temperatures.

[0021] When in use, this composite insulation material employs a symmetrical double-layer ceramic fiber layer 21 to simultaneously block high temperatures on both sides of the aerogel felt layer 1 and fill the pores in the aerogel felt layer 1. This reduces the risk of localized overheating and heat convection in the aerogel felt layer 1, extending the service life of the composite insulation material. By using the glass fiber mesh layer 22 as the outermost layer of the composite insulation material, it can resist friction and impact during use and constrain the stress generated by thermal expansion and contraction of the aerogel felt layer 1, reducing the formation of cracks in the aerogel felt layer 1. This solves the problem of easy damage to the aerogel felt layer 1 due to its poor mechanical properties during use, further improving the service life of the composite insulation material.

[0022] Reference Figures 2-4 As shown, this utility model proposes a second embodiment, in which a protective mechanism is provided at the end of the aerogel felt layer 1 to protect the end of the aerogel felt layer 1. Preferably, the protective mechanism is a side glass fiber mesh 31. The aerogel felt layer 1, the ceramic fiber layer 21, and the glass fiber mesh layer 22 are all square structures. The aerogel felt layer 1 and the ceramic fiber layer 21 have the same external dimensions, while the glass fiber mesh layer 22 has a larger external dimension than the aerogel felt layer 1 and the ceramic fiber layer 21. The four end faces of the glass fiber mesh layer 22 extend to the outside of the end faces of the ceramic fiber layer 21 to form protruding ends. Through these protruding ends, the ends of the aerogel felt layer 1 and the ceramic fiber layer 21 form a U-shaped structure. The side glass fiber mesh 31 is bonded to the U-shaped structure with an adhesive. The bottom of the side glass fiber mesh 31 is bonded to the ends of the aerogel felt layer 1 and the ceramic fiber layer 21, and the two sides of the side glass fiber mesh 31 are bonded to the protruding ends of the glass fiber mesh layer 22. During use, the ends of the aerogel felt layer 1 are sealed and protected by the side fiberglass mesh 31 to prevent damage to the ends of the aerogel felt layer 1.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant aerogel composite insulation material, comprising an aerogel felt layer (1), characterized in that, Ceramic fiber layers (21) are bonded to both sides of the aerogel felt layer (1) with an adhesive. The ceramic fiber layers (21) protect the aerogel felt layer (1) from high-temperature oxidation and mechanical impact, and fill the pores in the aerogel felt layer (1). Glass fiber mesh layers (22) are bonded to the outer surfaces of the ceramic fiber layers (21) on both sides of the aerogel felt layer (1) with an adhesive. The glass fiber mesh layers (22) increase the tensile and tear resistance of the aerogel felt layer (1). A protective mechanism is provided at the end of the aerogel felt layer (1) to protect the end of the aerogel felt layer (1). The protective mechanism is a side glass fiber mesh (31). The ends of the aerogel felt layer (1) and the ceramic fiber layer (21) have a U-shaped structure. The side glass fiber mesh (31) is bonded to the above-mentioned U-shaped structure with an adhesive.

2. The high-temperature resistant aerogel composite insulation material according to claim 1, characterized in that, The aerogel felt layer (1) is a silica aerogel felt layer.

3. The high-temperature resistant aerogel composite insulation material according to claim 2, characterized in that, The adhesive is a silicone rubber adhesive, which can firmly bond the ceramic fiber layer (21) to the aerogel felt layer (1) and the glass fiber mesh layer (22) to the ceramic fiber layer (21).

4. The high-temperature resistant aerogel composite insulation material according to claim 3, characterized in that, The aerogel felt layer (1), ceramic fiber layer (21), and glass fiber mesh layer (22) are all square structures. The aerogel felt layer (1) and ceramic fiber layer (21) have the same external dimensions, while the glass fiber mesh layer (22) has a larger external dimension than the aerogel felt layer (1) and ceramic fiber layer (21).

5. The high-temperature resistant aerogel composite insulation material according to claim 4, characterized in that, The four end faces of the glass fiber mesh layer (22) extend to the outside of the end face of the ceramic fiber layer (21) to form protruding ends, through which the ends of the aerogel felt layer (1) and the ceramic fiber layer (21) are formed with a U-shaped structure.

6. The high-temperature resistant aerogel composite insulation material according to claim 5, characterized in that, The bottom of the side glass fiber mesh (31) is bonded to the ends of the aerogel felt layer (1) and the ceramic fiber layer (21), and the two sides of the side glass fiber mesh (31) are bonded to the protruding ends of the glass fiber mesh layer (22).

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