TWI672227B - Pipe fireproof material - Google Patents

Abstract

The invention discloses a pipeline covered fireproof material, which comprises a flexible layer and a fireproof layer. The flexible layer is selected from the group consisting of nomex mesh, carbon fiber mesh, kevlar mesh, oxidized fiber mesh, glass fiber mesh, or high temperature resistant silicone film. A fire barrier layer is disposed on the flexible layer, and the fire barrier layer is selected from the group consisting of ceramic fibers, oxidized fibers, alkaline earth fibers, carbon fibers, nomex fibers, kevlar fibers, or high temperature resistant silicone rubber. The fire barrier density is 0.26 to 4 g/cm ³ . The thickness of the pipeline-covered fireproof material is between 0.5 and 5 mm, and the total heat value of the pipeline coating is less than 4 MJ/Kg. The pipeline covered fireproof material meets the standard of non-combustible fireproof material and has flexibility, which can flex and deform corresponding to the shape of the object to meet various needs of use.

Description

Pipeline covered fireproof material

The invention relates to a fireproof material, in particular to a fireproof material for covering a pipeline.

Fireproof materials can be classified into flame retardant fireproof materials and non-combustible fireproof materials. Flame-retardant fire-retardant materials can be ignited, but self-extinguish after leaving the heat source, and non-combustible fire-retardant materials will not be ignited. In general, for environments with high fire protection requirements, such as factory buildings, non-combustible fireproof materials are usually used to achieve fire protection standards. The general non-combustible fireproof materials are mostly made by mixing a plurality of inorganic materials and then being pressed by an inorganic binder. Such non-combustible fireproof materials are mostly rigid and difficult to bend. Therefore, it is difficult to use such fireproof materials when the pipelines in the plant are to be fireproofed. At present, items that can be fire-treated on pipelines, such as fire-retardant coatings, are often difficult to meet fire-proof standards, so there is still a need for improvement.

The technical problem to be solved by the present invention is to provide a pipeline coated fireproof material and a fireproof material for the deficiencies of the prior art.

In order to solve the above technical problem, one of the technical solutions adopted by the present invention is to provide a pipeline-covered fireproof material comprising a flexible layer and a fireproof layer. The flexible layer has a density of 0.5 to 5 g/cm ³ and a thickness of 0.1 to 0.5 mm. The flexible layer is selected from the group consisting of nomex mesh, carbon fiber mesh, kevlar mesh, oxidized fiber mesh, glass fiber mesh, or high temperature resistant silicone film. The fire barrier layer has a multi-layer structure and is directly attached to the flexible layer. The fire barrier layer has a density of 0.26 to 4 g/cm ³ and a thickness of 0.4 to 4.9 mm. The fire barrier layer is selected from the group consisting of ceramic fibers, oxidized fibers, alkaline earth fibers, carbon fibers, nomex fibers, kevlar fibers, glass fibers, or high temperature resistant silicone rubber. The thickness of the fire barrier layer is greater than the thickness of the flexible layer; the density of the flexible layer is greater than the density of the fire barrier layer. The total heat value of the pipeline coated fireproof material is less than 4 MJ/Kg.

Preferably, the total heat value of the pipeline-covered fireproof material is less than 3.5 MJ/Kg. The fire barrier layer is a structure in which 1 to 3 layers of ceramic fibers, oxidized fibers, alkaline earth fibers, carbon fibers, nomex fibers, glass fibers, or kevlar fibers are laminated.

In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a pipeline-covered fireproof material comprising a flexible layer and a fireproof layer. The flexible layer is selected from the group consisting of nomex mesh, carbon fiber mesh, kevlar mesh, oxidized fiber mesh, glass fiber mesh, or high temperature resistant silicone film. The fire barrier layer is disposed on the flexible layer, and the fire barrier layer is selected from the group consisting of ceramic fibers, oxidized fibers, alkaline earth fibers, carbon fibers, nomex fibers, kevlar fibers, glass fibers, or high temperature resistant silicone rubber. The fire barrier layer has a density of 0.26 to 4 g/cm ³ . Wherein, the pipeline covered fireproof material has a thickness of 0.5 to 5 mm, and the total heating value is less than 4 MJ/Kg.

Preferably, the thickness of the fire barrier layer is greater than the thickness of the flexible layer. The density of the flexible layer is greater than the density of the fire barrier layer. The fire barrier layer is a multi-layer stack structure. The fire barrier layer is directly attached to the flexible layer.

Preferably, the flexible layer has a thickness of 0.1 to 0.5 mm, and the fire barrier layer has a thickness of 0.4 to 4.9 mm. The flexible layer has a density of 0.5 to 5 g/cm ³ and the fire barrier layer has a density of 0.3 to 3 g/cm ³ . The flexible layer is joined to the fire barrier layer by pin rolling, chemical bonding, thermal bonding, or yarn stitching.

Preferably, the pipeline-covered fireproof material further comprises another fireproof layer disposed on opposite sides of the flexible layer. Wherein, the total heat value of the pipeline coated fireproof material is less than 3.5 MJ/Kg.

Preferably, the pipeline-covered fireproof material further comprises another flexible layer, the flexible The layers are disposed on opposite sides of the fire barrier layer. Wherein, the total heat value of the pipeline coated fireproof material is less than 3.5 MJ/Kg.

Preferably, the pipeline-covered fireproof material further comprises a metal foil layer disposed outside the flexible layer and the fireproof layer. Wherein, the total heat value of the pipeline coated fireproof material is less than 3.5 MJ/Kg.

In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a fireproof material comprising a flexible layer and a fireproof layer. The fire barrier layer is soft and directly conforms to the flexible layer and has a density of 0.26 to 2 g/cm ³ . The flexible fireproof material has a total heat value of 4 MJ/Kg or less.

Preferably, the flexible layer is selected from the group consisting of nomex mesh, carbon fiber mesh, kevlar mesh, oxidized fiber mesh, glass fiber mesh, or high temperature resistant silicone film. The fire barrier layer is selected from the group consisting of ceramic fibers, oxidized fibers, alkaline earth fibers, carbon fibers, nomex fibers, kevlar fibers, glass fibers, or high temperature resistant silicone rubber. The fireproof material has a total heat value of less than 3.5 MJ/Kg.

Preferably, the fireproof material further comprises another fireproof layer disposed on opposite sides of the flexible layer. The flexible layer is joined to the fire barrier layer by pin rolling, chemical bonding, thermal bonding, or yarn stitching.

Preferably, the fireproof material further comprises another flexible layer, and the flexible layer is disposed on opposite sides of the fireproof layer. The flexible layer is joined to the fire barrier layer by pin rolling, chemical bonding, thermal bonding, or yarn stitching.

Preferably, the fireproof material further comprises a metal foil layer disposed outside the flexible layer and the fireproof layer. The flexible layer is joined to the fire barrier layer by pin rolling, chemical bonding, thermal bonding, or yarn stitching.

Preferably, the thickness of the fire barrier layer is greater than the thickness of the flexible layer. The density of the flexible layer is greater than the density of the fire barrier layer. The fire barrier layer has a multilayer structure.

Preferably, the flexible layer has a thickness of 0.1 to 0.5 mm, and the fire barrier layer has a thickness of 0.4 to 4.9 mm. The flexible layer has a density of 0.5 to 5 g/cm ³ and the fire barrier layer has a density of 0.3 to 3 g/cm ³ . The flexible layer is joined to the fire barrier layer by pin rolling, chemical bonding, thermal bonding, or yarn stitching.

One of the beneficial effects of the present invention is to provide a non-combustible fireproofing material standard and having a flexible fireproofing material which can be flexibly deformed corresponding to the shape of the article to meet various different use needs.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the detailed description and drawings of the invention.

1‧‧‧ Pipeline covered fireproof material

11‧‧‧Flexible layer

12‧‧‧ fire barrier

13‧‧‧metal foil layer

9‧‧‧pipe

Figure 1 is a side cross-sectional view of the present invention.

Figure 2 is a side cross-sectional view showing the present invention further including a fire barrier layer.

3 is a side cross-sectional view showing the present invention further including a flexible layer.

4 is a side cross-sectional view showing the present invention further including a metal foil layer.

Figure 5 is a side cross-sectional view showing another embodiment of the present invention comprising a metal foil layer.

Figure 6 is a side cross-sectional view showing a further embodiment of the present invention comprising a metal foil layer.

Fig. 7 is a side cross-sectional view showing the manner of use of the pipe-covered fireproof material of the present invention.

The following is a description of an embodiment of the present invention relating to "pipeline-coated fireproof material" by a specific embodiment, and those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in the specification. The invention can be implemented or applied in various other specific embodiments, and various modifications and changes can be made without departing from the spirit and scope of the invention. In addition, the drawings of the present invention are merely illustrative and are not intended to be stated in the actual size. The following embodiments will further explain the related art of the present invention in further detail. The content, but the disclosure is not intended to limit the scope of the invention.

Referring to FIG. 1 to FIG. 5, a first embodiment of the present invention provides a pipeline covered fireproof material 1 comprising: a flexible layer 11 and a fireproof layer 12.

The flexible layer 11 exhibits soft flexibility and has a density of from 0.5 to 5 g/cm ³ . The flexible layer 11 is selected from the group consisting of nomex mesh, carbon fiber mesh, kevlar mesh, oxidized fiber mesh, glass fiber mesh, or high temperature resistant silicone film. The flexible layer 11 may be a commercially available mesh cloth or a high temperature resistant silicone film, or may be manufactured by itself without any limitation.

A fire barrier layer 12 is disposed on the flexible layer 11. The fire barrier layer 12 is selected from the group consisting of ceramic fibers, oxidized fibers, alkaline earth fibers, carbon fibers, nomex fibers, kevlar fibers, glass fibers, or high temperature resistant silicone rubber. The alkaline earth fiber used is an improved ceramic fiber.

The fire-retardant layer 12 is not limited in any way. For example, the aforementioned fibers may be sequentially placed in an opener, a cotton blender, and a card to loosen the fibers and gradually form a fiber web. The web is then stacked through a cotton stacker to form a bulky multi-layer structure. Then, the above-mentioned multi-layer structure is processed by a punching crochet machine, and the fibers in the multi-layer structure are interlaced up and down to improve the overall strength, and finally the processing is continued by a hot press machine to obtain the required strength, density and thickness. A fire barrier layer 12 is obtained. The manner in which the fire barrier layer 12 is made is not limited to the above. Preferably, the fire barrier layer 12 is a structure in which a plurality of layers of webs are laminated, such as a laminated 1 to 3 layer web, that is, the fire barrier layer 12 is a multilayer structure. In addition, if the fireproof layer 12 is made of a high temperature resistant silicone, the fireproof layer 12 may also be formed by laminating a plurality of layers of high temperature resistant silicone. The number of layers of the fiber web or the high temperature resistant silicone is not limited by the foregoing, and can be adjusted as needed.

The density of the fire barrier layer 12 is less than the density of the flexible layer 11, and the density of the fire barrier layer 12 is between 0.26 and 4 g/cm ³ . Preferably, the density of the fire barrier layer 12 is between 0.3 and 3 g/cm ³ . By adjusting the density of the fire barrier 12 to enhance its fire protection characteristics. The density of the fire barrier can be adjusted by compacting and fixing the stacked webs.

The fire barrier layer 12 is directly bonded to the flexible layer 11, and may be connected by needle rolling, chemical bonding, heat bonding, or yarn stitching. Needle rolling is performed by crocheting on the fireproof layer 12 and the flexible layer 11, so that the fibers between the two layers are intertwined and connected together. The equipment used can be exemplified but not limited to: a stamping crochet machine. Chemical adhesion is to infiltrate into the fibers between the layers by chemical agents, and then the fire barrier layer 12 and the flexible layer 11 are directly adhered and adhered together, and the chemical agent may be selected from, but not limited to, potassium hydroxide, allantoin, Or acetaminophen. The thermal adhesion is to apply a certain temperature to the fireproof layer 12 and the flexible layer 11, and optionally apply a certain pressure to bond the fibers at the junction to each other. The equipment used may be exemplified but not limited to: hot pressing Plane. The yarn stitching is to suture the fireproof layer 12 and the flexible layer 11 by using a yarn. The material of the yarn used can be the same as that of the fireproof layer 12. The equipment used can be exemplified by, but not limited to, a sewing machine.

The fire barrier layer 12 is not mixed with other materials when it is manufactured. For example, when the fire barrier layer 12 is made of oxidized fibers, it contains only oxidized fibers and does not incorporate other types of fibers. In this way, the fireproof characteristics can be effectively improved.

Referring to FIG. 2, it is worth mentioning that the pipeline-covered fireproof material 1 can further be attached to another flexible layer 11 and attached to the other side of the fireproof layer 12. This configuration can further enhance the pipeline covering fireproof material. 1 The overall structural strength, and because the material of the flexible layer 11 also has fireproof properties, it can maintain or even improve the overall fireproofing characteristics of the fireproofing material 1 of the pipeline. Referring to FIG. 3, in addition, the pipeline-covered fireproof material 1 may be further attached to another fireproof layer 12 and directly attached to the other side of the flexible layer 11. This arrangement can also improve the fireproofing of the pipeline covered fireproof material 1. characteristic.

In addition, the pipe-covered fireproof material 1 can further include a metal foil layer 13, and the metal foil layer 13 can be exemplified by, but not limited to, aluminum foil, copper foil, and silver foil. The metal foil layer 13 is disposed on the outer side of one of the flexible layer 11 and the fireproof layer 12. As shown in FIG. 4, the pipeline-covered fireproof material 1 includes a fireproof layer 12 and a flexible layer 11 which are sequentially laminated. And the metal foil layer 13; as shown in FIG. 5, the pipeline-covered fireproof material 1 comprises a fireproof layer 12, a flexible layer 11, a fireproof layer 12, and a metal foil layer 13 which are sequentially laminated; It is shown that the pipeline-covered fireproof material 1 comprises a flexible layer 11, a fireproof layer 12, a flexible layer 11, and a metal foil layer 13 which are sequentially laminated. The arrangement of the metal foil layer 13 may be arbitrarily determined and is not limited by the disclosure of the present invention.

The thickness of the pipeline covered fireproof material 1 is between 0.5 and 5 mm, wherein the fireproof layer The thickness is greater than the thickness of the flexible layer, wherein the thickness of the flexible layer 11 is preferably between 0.1 and 0.5 mm, and the thickness of the fire barrier layer 12 is preferably between 0.4 and 4.9 mm. When the pipe-covered fireproof material 1 adopts a structure of three or more layers, the total thickness thereof is preferably controlled to be 0.5 mm to 5 mm.

The total heat value of the pipe-covered fireproof material 1 is less than 4 MJ/Kg, preferably, the total heat value is less than 3.5 MJ/Kg. Thus, when heated at 50 kW/m ^{2 for} 20 minutes, the total heat release amount of the pipe-covered fireproof material 1 would be less than 8 MJ/m ² .

Referring to Fig. 7, the pipe-covered fireproof material 1 can be used by wrapping it around a pipe 9. The manner in which it is coated is preferably that the fire barrier layer 12 is attached to the pipe 9. However, if the pipe-covered fireproof material 1 is a fire-retardant layer 12 sandwiched between the double-layer flexible layer 11 (see FIGS. 3 and 6), the flexible layer 11 may be wrapped around the pipe 9.

It is also worth mentioning that the use of the pipe-covered fireproof material 1 of the present invention can be used not only to cover the pipe 9, but also as a general fireproof material. The scope of application can be exemplified but not limited to: fire blanket, fire curtain, fire wall cloth, or fire wall sticker.

The fireproof material of the invention meets the standard of non-combustible fireproof material, and has a flexible fireproof material, which can flex and deform corresponding to the shape of the object, so as to meet various different use needs. In this way, it can be applied to fields such as high temperature pipelines, interior decoration, high temperature equipment, etc. to prevent the burning and spreading of fire sources.

The structure and materials of the present invention have been described above, and Examples 1 to 6 will be hereinafter described to further illustrate the advantages of the present invention.

[Example 1]

The first embodiment includes a flexible layer 11 and a fireproof layer 12, wherein the flexible layer 11 is made of a glass fiber mesh having a thickness of 0.1 mm and a density of 2 g/cm ³ . The fire barrier layer 12 is made of oxidized fiber and has a thickness of 2 mm and a density of 0.26 g/cm ³ . Its characteristics are listed in Table 1.

[Embodiment 2]

The second embodiment is substantially the same as the first embodiment except that the other fireproof layer 12 is further included. The fire barrier layers 12 are respectively disposed on opposite sides of the flexible layer 11. The thickness, density, and characteristics of each layer are listed in Table 1.

[Example 3]

This embodiment 3 is substantially the same as the first embodiment except that the other flexible layer 11 is further added. The flexible layers 11 are respectively disposed on opposite sides of the fire barrier layer 12. The thickness, density, and characteristics of each layer are listed in Table 1.

[Example 4]

The fourth embodiment is substantially the same as the first embodiment except that an aluminum foil is further added and disposed on the flexible layer 11. The thickness of the aluminum foil is 0.1 mm. The thickness, density, and characteristics of each layer are listed in Table 1.

[Example 5]

This embodiment 5 is substantially the same as the embodiment 2 except that an aluminum foil is further added and disposed on the fire barrier layer 12. The thickness of the aluminum foil is 0.1 mm. The thickness, density, and characteristics of each layer are listed in Table 1.

[Embodiment 6]

This embodiment 6 is substantially the same as the embodiment 3 except that an aluminum foil is further added and disposed on the flexible layer 11. The thickness of the aluminum foil is 0.3 mm. The thickness, density, and characteristics of each layer are listed in Table 1.

[Comparative example]

The comparative example comprises a flexible layer 11 and a fireproof layer 12, wherein the flexible layer 11 is made of a glass fiber mesh having a thickness of 0.1 mm and a density of 2 g/cm ³ . The fire barrier layer 12 is made of flame retardant cotton having a thickness of 3 mm and a density of 0.3 g/cm ³ . Its characteristics are listed in Table 1.

[Fire rating]

Measuring equipment: cone calorimeter (DEATAK, model MODEL RHR-1).

Test method: ASTM2.0006.

Structural evaluation: heating at 800 ° C for 20 minutes, those without cracks or holes were O, and those with cracks or holes were X.

Thus, by selecting the material, density and thickness of the fire-retardant layer 12, it has a good fireproof effect and meets the standards of non-combustible fireproof materials. The fire-retardant material of the present invention does not generate penetrating cracks or voids under the condition of heating at 800 ° C for 20 minutes, and can maintain the structural integrity. In addition, the fireproof material of the present invention is also provided with flexible characteristics, so that it can be flexed and deformed corresponding to the shape of the object to meet various needs of use.

The above disclosure is only a preferred possible embodiment of the present invention, and thus The scope of the present invention is intended to be limited only by the scope of the present invention.

Claims (12)

A pipeline-covered fireproof material comprising: a flexible layer having a density of 2.0 to 2.7 g/cm ³ and a thickness of 0.1 to 0.5 mm, the flexible layer being selected from the group consisting of nomex mesh, carbon fiber mesh, and kevlar mesh a cloth, an oxidized fiber mesh, a fiberglass mesh, or a high temperature resistant silicone film; and a fire barrier layer having a multilayer structure and directly attached to the flexible layer, the fibers in the multilayer structure Interlaced up and down, the fire barrier layer has a density of 0.26 to 0.30 g/cm ³ and a thickness of 0.4 to 4.9 mm, and the fire barrier layer is selected from the group consisting of ceramic fibers, oxidized fibers, alkaline earth fibers, carbon fibers, nomex fibers, kevlar fibers, and glass fibers. Or a high temperature resistant silicone; wherein the thickness of the fireproof layer is greater than the thickness of the flexible layer; the density of the flexible layer is greater than the density of the fireproof layer; the total heat value of the fireproof material of the pipeline Less than 4MJ/Kg. The pipeline coated fireproof material according to claim 1, wherein the pipeline has a total heat value of less than 3.5 MJ/Kg, and the fireproof layer is 1 to 3 layers of ceramic fiber, oxidized fiber, A structure composed of an alkaline earth fiber, a carbon fiber, a nomex fiber, a glass fiber, or a kevlar fiber. A pipeline coated fireproof material comprising: a flexible layer having a density of 2.0 to 2.7 g/cm ³ and a thickness of 0.1 to 0.5 mm, selected from the group consisting of nomex mesh, carbon fiber mesh, kevlar mesh, and oxidized fiber mesh a cloth, a fiberglass mesh, or a high temperature resistant silicone film; and a fire barrier layer disposed on the flexible layer, the fire barrier layer being a multi-layer structure, and the fibers in the multilayer structure are interlaced up and down, the fire prevention The layer is selected from the group consisting of ceramic fiber, oxidized fiber, alkaline earth fiber, carbon fiber, nomex fiber, kevlar fiber, glass fiber, or high temperature resistant silicone, the fire barrier layer has a density of 0.26 to 0.30 g/cm ³ , and the fire barrier layer has a thickness of 0.4. Up to 4.9 mm; wherein the pipeline coated fireproof material has a thickness of 0.5 to 5 mm and a total heating value of less than 4 MJ/Kg. The pipeline-covered fireproof material according to claim 3, wherein the thickness of the fireproof layer is greater than the thickness of the flexible layer; the density of the flexible layer is greater than the density of the fireproof layer; The multi-layer structure; the fire barrier layer directly adheres to the flexible layer. The pipeline coated fireproof material according to claim 4, wherein the flexible layer and the fireproof layer are connected by needle rolling, chemical adhesion, thermal adhesion, or yarn stitching. The pipeline-covered fireproof material according to claim 3, further comprising another fireproof layer, wherein the fireproof layer is disposed on opposite sides of the flexible layer; wherein the pipeline covers the total heat of the fireproof material The value is less than 3.5 MJ/Kg. The pipeline-covered fireproof material according to claim 3, further comprising another flexible layer, wherein the flexible layer is disposed on opposite sides of the fireproof layer; wherein the pipeline covers the total of the fireproof material The calorific value is less than 3.5 MJ/Kg. The pipeline-covered fireproof material according to claim 3, further comprising a metal foil layer disposed on an outer side of one of the flexible layer and the fireproof layer; wherein the pipeline The total heat value of the coated fireproof material is less than 3.5 MJ/Kg. A fireproof material comprising: a flexible layer having a density of 2.0 to 2.7 g/cm ³ and a thickness of 0.1 to 0.5 mm; and a fire barrier layer, the fire barrier layer being a multilayer structure, and wherein the multilayer structure The fibers are interlaced, and the fire barrier layer is selected from the group consisting of ceramic fibers, oxidized fibers, alkaline earth fibers, carbon fibers, nomex fibers, kevlar fibers, glass fibers, or high temperature resistant silicone rubber, which is soft and directly adhered to the flexible layer, and The density is 0.26 to 0.30 g/cm ³ , and the fire barrier layer has a thickness of 0.4 to 4.9 mm; wherein the fireproof material has a total heat value of less than 4 MJ/Kg. The fireproof material according to claim 9, wherein the flexible layer is selected from the group consisting of nomex mesh, carbon fiber mesh, kevlar mesh, oxidized fiber mesh, glass fiber mesh, or high temperature resistant silicone film; The total heat value of the fireproof material is less than 3.5 MJ/Kg. The fireproof material according to claim 10, wherein the thickness of the fireproof layer is greater than the thickness of the flexible layer; the density of the flexible layer is greater than the density of the fireproof layer; and the fireproof layer is a multilayer structure. The fireproof material according to claim 11, wherein the flexible layer and the fireproof layer are joined by needle rolling, chemical adhesion, thermal adhesion, or yarn stitching.