KR102294474B1 - Fire protection sheet material, Insulation structure comprising fire protection sheet material and Fire protection screen comprising fire protection sheet material - Google Patents

Abstract

Provided are a fire sheet member having a fireproof function, a fire insulation structure having the fire sheet member, and a fire screen member having the fire sheet member. The fire sheet member comprises: a base sheet containing a silica component; and a fire coating layer stacked on an outer surface of the base sheet, comprising a first grain of a capsule type, where a fire extinguishing medium is stored, destructed at first temperature to discharge the fire extinguishing medium, a second grain composed of a heat expandable substance expanded at second temperature higher than the first temperature, and a resin material fixating the first grain and the second grain, and formed by mixing the first grain and the second grain into a single layer.

Description

Fire protection sheet material, Insulation structure comprising fire protection sheet material and Fire protection screen comprising fire protection sheet material}

The present invention relates to a heat insulating structure and a screen member constructed using a sheet member and a sheet member, and more particularly, to a fire prevention sheet member having a fire prevention function, a fire insulation heat insulating structure including a fire prevention sheet member, and a fire prevention sheet It relates to a fire prevention screen member including a member.

Fires can occur in a variety of situations. Various kinds of combustible materials are used in our daily life, and heat sources are also present everywhere. Even without direct contact with the heat source, ignition may occur indirectly through combustible materials, etc., and after ignition, it may turn into a major fire. Therefore, an effective fire protection structure is essential anywhere.

In particular, in certain facilities such as thermal power plants, pipes for transporting high-temperature substances are scattered, and various oil components such as fuel and lubricating oil are present, making them more vulnerable to ignition. For example, it is possible to reduce the amount of heat generated by enclosing the outside of a pipe with an insulating material, etc. However, if the insulating material is contaminated by an oil leak of unknown cause or an oil component mixed with exhaust gas, the risk of ignition may rather increase.

As a conventional fire protection structure, a firewall, a fire door, etc. formed of heat insulation, non-combustible material, etc. are generally known (eg, Republic of Korea Patent 10-2015-0122333, etc.). However, since such a fire protection structure is only for preventing the spread of fire by shielding the space, it is difficult to respond to the same problem as the above-described thermal power plant. In addition, since the conventional fire protection structure does not have an active fire extinguishing function, there is a limit in enhancing the actual fire suppression effect.

Republic of Korea Patent Publication No. 10-2015-0122333, (2015. 11. 02)

The technical problem to be achieved by the present invention is to solve such a problem, and to provide a fire prevention sheet member having a fire protection function applicable to various situations, and furthermore, by using this sheet member, not only secondary spread of fire but also ignition It is to be able to actively extinguish the fire in the early stage. In addition, another technical object of the present invention is to provide a fire insulation structure including a fire prevention sheet member, and a fire prevention screen member including a fire prevention sheet member.

The technical problems of the present invention are not limited to the above-mentioned problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

Fire prevention sheet member according to the present invention, the base sheet containing a silica (silica) component; And laminated on the outer surface of the base sheet, the first pellet in the form of a capsule in which the extinguishing agent is destroyed at a first temperature to discharge the extinguishing agent, and a thermally expandable material that expands at a second temperature higher than the first temperature A second particle made of, and a fire protection coating layer formed by mixing the first particle and the second particle in one layer, including a resin material for fixing the first particle and the second particle.

The base sheet may include a glass fiber sheet or a coated glass fiber sheet having a protective layer formed on at least one surface of the glass fiber sheet, and the fire protection coating layer may have a thickness of not more than 1 mm.

The first granules may be formed of micronized fire extinguishing capsules in which the fire extinguishing agent is embedded in an outer wall made of a polymer material, and the second granules may be made of expanded graphite.

The fire protection coating layer is formed by applying a coating material containing the fire extinguishing capsule, the expanded graphite, and the resin material to the outer surface of the base sheet, and the coating material includes 1 to 10 parts by weight of the fire extinguishing capsule and the expansion Graphite may be formulated to contain the digestive capsule and the expanded graphite in a ratio of 4 to 35 parts by weight.

The coating material further contains a flame retardant, and a solvent composition, wherein the solvent composition is made of at least one selected from a xylene-based solvent, an IPA (Isopropyl alcohol)-based solvent, and an ethanol-based solvent, and the resin material is a silicone-based resin and an acrylic-based solvent Including the resin, the coating material is 1 to 10 parts by weight of the digestive capsule, 4 to 35 parts by weight of the expanded graphite, 10 to 30 parts by weight of the flame retardant, 20 to 35 parts by weight of the silicone resin, 5 to 10 parts by weight of the acrylic resin Parts by weight, and 20 to 30 parts by weight of the solvent composition may be formulated to contain each in a proportion.

The fire insulation structure including the fire prevention sheet member according to the present invention, the insulation member; and the fire prevention sheet member described above laminated on the outer surface of the heat insulating member.

The heat insulating member is disposed in a form surrounding the heating element and includes a first outer surface facing the heating element and a second outer surface opposite thereto, and the fire protection sheet member is laminated on the second outer surface, the fire protection coating layer It may be disposed toward the heat insulating member to be in close contact with the heat insulating member.

The heat insulating member is inserted into the inner space of the fire door and includes first and second outer surfaces respectively opposite to the inner surface of the fire door, and the fire protection sheet member is provided on the first outer surface and the second outer surface, respectively. Doedoe stacked, the base sheet may be disposed to face the heat insulating member to be in close contact with the heat insulating member.

The fire prevention screen member including the fire prevention sheet member according to the present invention is formed by overlapping a pair of the fire prevention sheet members described above, and the pair of the fire prevention sheet members are spaced apart from each other to form a cavity formed in the center And, the pair of sheet members for fire prevention may be formed so that each of the fire protection coating layers face each other toward the cavity.

Advantageous Effects of Invention According to the present invention, it is possible to respond to unexpected fires in various situations, and at the same time prevent secondary spread of fire and automatically extinguish initial ignition. In particular, it is possible to significantly lower the fire risk by applying the present invention in a desired form to various facilities or facilities having structures with high ignition risk, such as thermal power plants. In addition, the present invention can be freely utilized for known fire protection structures, etc., and thus can greatly improve the fire response capability of various facilities.

1 is a perspective view of a fire prevention sheet member according to an embodiment of the present invention.
FIG. 2 is a layout view showing an application form of the fire prevention sheet member of FIG. 1 .
3 and 4 are operational views showing the fire prevention operation of the fire prevention sheet member of FIG.
5 is a perspective view illustrating a fire insulation structure including a fire prevention sheet member according to an embodiment of the present invention.
6 is a perspective view illustrating a fire insulation structure including a fire prevention sheet member according to another embodiment of the present invention.
7 is a perspective view illustrating a fire prevention screen member including a fire prevention sheet member according to an embodiment of the present invention.

Advantages and features of the present invention and methods for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete and provide common knowledge in the technical field to which the present invention pertains. It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the claims. Like reference numerals refer to like elements throughout.

Hereinafter, with reference to FIGS. 1 to 7, a fire protection sheet member according to an embodiment of the present invention, a fire insulation heat insulating structure including a fire prevention sheet member, and a fire prevention screen member including a fire prevention sheet member It will be described in detail. For concise and clear explanation, first, the fire protection sheet member of the present invention will be described in detail with reference to Figs. A fire prevention screen member including a structure and a fire prevention sheet member will be described in detail. In addition, specific experimental examples related to the sheet member for fire prevention will be described together.

1 is a perspective view of a fire prevention sheet member according to an embodiment of the present invention.

Referring to FIG. 1 , the fire protection sheet member 1 according to the present invention is formed in a form in which a fire protection coating layer 200 is laminated on a base sheet 100 . The base sheet 100 is formed of a material having excellent fire resistance, and the fire protection coating layer 200 has a thermal expansion capacity that increases in volume by heat, and an ability to extinguish fire by discharging a built-in extinguishing agent. In particular, in the fire protection coating layer 200, the first granules 210 containing the fire extinguishing agent and the second granules 220 that are expanded by heat are mixed in one layer, and thus the fire extinguishing gas generated by the fire extinguishing agent is released. The expansion of the two grains 220 can be accelerated. In addition, the second granules 220 may be collecting the extinguishing gas generated first as the volume increases during a fire, so it may be more effective to prevent the spread of fire after ignition. That is, the present invention automatically suppresses the fire through the extinguishing agent of the first granules 210 at the initial stage of ignition, and can effectively block the fire spread through the expansion of the second granules 220 even if complete extinguishing is not achieved. In addition, since the first granules 210 and the second granules 220 are mixed in a single layer, a more effective fire protection structure can be created through interaction through a fire extinguishing gas or the like. The fire prevention sheet member 1 of the present invention is formed to have a relatively thin thickness, so that it can be conveniently applied to various types of objects or structures.

The fire prevention sheet member of the present invention is specifically configured as follows. The fire protection sheet member 1 is laminated on the outer surface of the base sheet 100 and the base sheet 100 containing a silica component, and has a built-in fire extinguishing agent that is destroyed at the first temperature to discharge the fire extinguishing agent. The first granules 210 in the form of capsules, the second granules 220 made of a thermally expandable material that expands at a second temperature higher than the first temperature, and the first granules 210 and the second granules 220 are fixed Including a resin material 230 to include a fire protection coating layer 200 formed by mixing the first granules 210 and the second granules 220 in one layer. According to an embodiment of the present invention, the base sheet 100 may be formed by including a glass fiber sheet or a coated glass fiber sheet in which a protective layer is formed on at least one surface of the glass fiber sheet, and the fire protection coating layer 200 is The thickness may not exceed 1 mm. The fire protection coating layer 200 is formed in such a way that, for example, a coating material containing the first granules 210 , the second granules 220 , and the resin material 230 is applied to the outer surface of the base sheet 100 . I can adjust the concentration of each substance appropriately. Hereinafter, the configuration and effect of the present invention will be described in more detail based on one embodiment of the present invention.

The base sheet 100 maintains the shape of the fire protection sheet member 1 and serves to support the fire protection coating layer 200 . The base sheet 100 may contain a silica component and may be a sheet-shaped member with enhanced fire resistance and heat resistance through this. The base sheet 100 may be formed including, for example, a glass fiber sheet or a coated glass fiber sheet having a protective layer formed on at least one surface of the glass fiber sheet, or may be formed including a silica sheet or the like. The base sheet 100 may be formed of a single material, or may be formed by mixing two or more materials. Although not shown in detail, for example, when the base sheet 100 is formed of a coated glass fiber sheet, a protective layer is formed on the base sheet 100 itself, so that the base sheet 100 may have a multi-layered structure. However, the material, structure, etc. of the base sheet 100 do not need to be limited in this way, and in addition, it is possible to form the base sheet 100 using other various sheet-shaped members with enhanced heat resistance and fire resistance. do.

The fire protection coating layer 200 is formed by being laminated on the outer surface of the base sheet 100 . As will be described later, the fire protection coating layer 200 may be formed by applying a coating material containing the above-described first particles 210 and second particles 220 to the base sheet 100 . Through this, the fire protection coating layer 200 can be formed so that the thickness does not exceed 1 mm, and therefore even considering the thickness of the above-described base sheet 100 (eg, it may be approximately several mm in the case of a glass fiber sheet) for fire protection The overall thickness of the sheet member 1 may be formed to be very thin. In addition, since the fire prevention sheet member 1 has sufficient hardness by the base sheet 100 made of a glass fiber sheet or the like, it can be applied very stably to various structures or desired places. An example of this will be described later in more detail. In this embodiment, the fire protection coating layer 200 is laminated on one side of the base sheet 100 , but if necessary, the fire protection coating layer 200 is not impossible to be formed on both sides of the base sheet 100 .

The fire protection coating layer 200 fixes the first granules 210 in the form of capsules containing fire extinguishing agents, the second granules 220 made of a thermally expansible material, and the first granules 210 and the second granules 220 . and a resin material 230 that As a result, as shown, the first granules 210 and the second granules 220 are mixed in one layer (ie, a fire protection coating layer) and formed. In particular, the first granules 210 are destroyed at the first temperature to discharge the built-in extinguishing agent, and the second granules 220 are expanded by heat at a second temperature higher than the first temperature. That is, the first granules 210 are destroyed at a lower temperature than the second granules 220 to discharge the extinguishing material first, and the second granules 220 are expanded at a relatively high temperature after the extinguishing substances are discharged. The first temperature may be, for example, around 100°C, and the second temperature may be, for example, around 200°C. That is, when the temperature of the initial point of the fire that can be ignited is reached, the first granules 210 are immediately destroyed and automatically extinguish the fire. is inflated The first granules 210 and the second granules 220 may be formed including materials capable of such an action, respectively.

For example, the first granules 210 may be formed of micronized fire extinguishing capsules in which a fire extinguishing agent is embedded in an outer wall made of a polymer material, and the second granules 220 may be made of expanded graphite. The fire extinguishing capsule may be, for example, a micro-capsule-type particle having a size of a micrometer unit, in which fire extinguishing agents of various components are built-in. The extinguishing agent may be, for example, a substance that generates extinguishing gas in various ways such as thermal decomposition, vaporization, etc., and such extinguishing agent may include, for example, various substances such as halogenated compounds and / or fluorinated ketones. . If necessary, the first granules 210 may be formed as a digestive capsule having a built-in extinguishing agent. These first granules 210 are destroyed by heat at the first temperature (eg, around 100 ℃) to discharge the extinguishing agent, and the discharged extinguishing agent can immediately generate extinguishing gas, and the generated extinguishing gas is cooled, Digestion can occur in a variety of ways, including asphyxiation and suppression of chain reactions. Therefore, it is possible to effectively extinguish the fire within the reachable range of the extinguishing gas.

Expanded graphite may be formed, for example, expandable by heat by treating graphite particles with an acid and an oxidizing agent. The expanded graphite may be in the form of a powder having a size of, for example, micrometers, and the expandability may be proportional to the volume. Therefore, by adjusting the number or concentration of the second granules 220 made of expanded graphite, the expansion rate of the entire fire prevention sheet member 1 can be adjusted. In addition, by adjusting the number or concentration of the first granules 210 described above, it is possible to also adjust the amount of the extinguishing agent that can be discharged and the extinguishing gas generated therefrom. In the fire protection coating layer 200, the first granules 210 and the second granules 220 are surrounded and fixed by the resin material 230, and the resin material 230 is, for example, a silicone or acrylic adhesive. It can be formed by using a material appropriately. Although not shown, if necessary, a flame retardant or other additives may be added in the form of particles (meaning equivalent to grains) in the fire protection coating layer 200 to increase the fire protection effect. A method of forming the fire protection coating layer 200 will be described in more detail as follows.

The fire protection coating layer 200 is, for example, a fire extinguishing capsule forming the first grains 210, expanded graphite forming the second grains 220, and a resin material 230 for fixing them. Thus, it can be formed in a manner that is applied to the outer surface of the base sheet 100 . At this time, the coating material, preferably, may be formulated to contain the digestive capsule and the expanded graphite in a ratio of 1 to 10 parts by weight of the digestive capsule and 4 to 35 parts by weight of the expanded graphite. More preferably, the coating material may be formed by further containing a flame retardant material (which may be a variety of materials having properties such as flame retardant, nonflammable, and does not need to be particularly limited within such limits), and a solvent composition, and a solvent The composition is made of at least one selected from, for example, a xylene-based solvent, an Isopropyl alcohol (IPA)-based solvent, and an ethanol-based solvent, and the resin material 230 includes a silicone-based resin and an acrylic resin, and the coating material is a digestive capsule 1 to 10 parts by weight, 4 to 35 parts by weight of expanded graphite, 10 to 30 parts by weight of flame retardant, 20 to 35 parts by weight of silicone resin, 5 to 10 parts by weight of acrylic resin, and 20 to 30 parts by weight of solvent composition. can be constructed to do so. Such a coating material may be applied to the outer surface of the base sheet 100 in a liquid, for example, and then dried to form the fire protection coating layer 200 laminated on the outer surface of the base sheet 100 . The concentration or ratio of components contained in the coating material may be adjusted during the manufacturing process of the coating material, and through this, the fire extinguishing agent discharged from the fire protection coating layer 200 and the amount of fire extinguishing gas generated therefrom and the fire protection coating layer 200 The expansion rate and the like can also be changed as desired. In this way, the fire protection coating layer 200 is laminated on the outer surface of the base sheet 100 to form the fire protection sheet member 1 .

2 is a layout view showing an application form of the sheet member for fire prevention of FIG. 1, and FIGS. 3 and 4 are operational views showing the fire prevention operation of the fire prevention sheet member of FIG.

With reference to FIGS. 2 to 4, the specific application form of the sheet member 1 for fire prevention is demonstrated. The fire protection sheet member 1 may be disposed, for example, on the outer surface of the heat insulating material A surrounding the heating element B as shown in FIG. 2 . The heating element (B) may be, for example, a pipe for transporting a high-temperature material to the inside, and may be a turbine used in other power plants, etc. In addition, it may be another structure that can leak a large amount of heat to the outside. In order to block the heat leakage of such a heating element (B), the outside is wrapped with an insulating material (A) as shown, and the fire prevention sheet member (1) can be placed in close contact with the outer surface of the insulating material (A). In order to reveal the structural features of the present invention, the thickness of the fire protection sheet member 1 is exaggerated in the drawings, and the actual proportions may be different from the drawings. Since the sheet member 1 for fire prevention has a thickness of millimeters as described above, it can be very easily adhered to the outer surface of the insulating material A formed to be relatively thick in centimeters, for example. In this way, by disposing the sheet member 1 for fire prevention, the outer surface of the heat insulating material A can be wrapped, and the heating element B can be protected with a double structure consisting of the heat insulating material A and the fire sheet member 1 .

In general, since the heat insulating material (A) includes a foam structure for making an air layer therein, it is easy to be contaminated by contact with oil or a gas containing oil. Situations in which the insulating material (A) is contaminated with oil components are various, and may occur in various forms such as leakage of the heating element (B) or direct or indirect exposure to gas containing oil. For example, such a problem may occur frequently in thermal power plants, factories, and various industrial facilities, etc., and by applying the fire prevention sheet member 1 as shown, the contaminated insulating material A ignites or ignites to cause a fire. You can prepare for the situation. The fire protection sheet member 1 may be disposed in close contact with the heat insulating material A with the fire protection coating layer 200 facing the heat insulating material A, as shown.

The operation process of the fire prevention sheet member 1 will be described in detail as follows. First, as shown in FIG. 3 , a situation in which the insulating material A wrapped with the fire prevention sheet member 1 is overheated and some of them are ignited may occur. The insulator (A) may receive the heat (refer to the solid arrow on the heating element (B) side) of the heating element (B) in contact with the insulator (A) to increase the temperature, and thereby the temperature may be higher than the normal temperature. Also, when ignited, the temperature can rise more rapidly. Accordingly, when the first operating temperature reaches the first temperature (for example, around 100° C.), the first granules 210 in the fire protection coating layer 200 are destroyed and the built-in extinguishing agent is automatically discharged as described above. do. The discharged extinguishing agent generates the above-described extinguishing gas (C), and the generated extinguishing gas (C) is ejected/diffused in all reachable directions. Therefore, for example, the entire internal space shielded from the outside by the fire prevention sheet member 1, such as the inside of the insulation (A), is filled with the extinguishing gas (C), and in various ways such as cooling, suffocation, and chain reaction suppression described above. Digestion proceeds quickly. In this way, it is possible to effectively extinguish the fire at the initial stage of ignition.

Depending on the situation, there are many ignition points, so it may take time to extinguish, and the temperature rise immediately after ignition may be relatively large due to the material of the insulating material (A). In addition, a situation in which complete fire extinguishing is not achieved only by discharging the extinguishing agent cannot be excluded. In such a case, the temperature may be increased to reach a second temperature (eg, around 200° C.), which is a second operating temperature, and thereby, as shown in FIG. 4 , the second granules 220 expand by heat. can be The second granules 220 expand the entire volume of the fire protection coating layer 200 while expanding, and the fire protection coating layer 200 expands in all possible directions to shield the periphery to block the inflow of air. Accordingly, since all spaces around the ignition point are sealed, the extinguishing effect of the extinguishing gas generated first is maximized. It is also possible to effectively prevent the fire from spreading out of the ignition point by such an expansion operation.

In particular, the second granules 220 of the fire protection coating layer 200 can be expanded by the gas by generating gas by thermal reaction, and the extinguishing gas (C) ejected first from the first granules 210 is added thereto. Thus, it can serve to accelerate the expansion of the second granules (220). In addition, a portion of the extinguishing gas (C) ejected into the gap between the tissues loosened as the second granules 220 is expanded may penetrate and be collected. That is, as shown in Fig. 4, the digestion gas (C) interacts with the second granules 220 to increase the expansion effect of the second granules 220, and after being expanded, the volume of the second granules ( 220) can be trapped between That is, the first granules 210 and the second granules 220 may be mixed in one layer (fire protection coating layer 200) to substantially interact with each other, thereby forming a more effective fire prevention structure. For example, the second granules 220 can be expanded more rapidly by the extinguishing gas (C) ejected from the first granules 210, and the volume can be further increased, and even after expansion, the extinguishing gas ( C) is captured, so it can show a direct fire extinguishing action in addition to the action of shielding the space and filling the gap. This allows the fire to be extinguished more effectively.

In particular, the fire suppression effect of the present invention is strengthened by mixing the first granules 210 and the second granules 220 in one layer to enable interaction. In addition, the fire protection sheet member 1 of the present invention is formed relatively thin as described above and can be applied to various structures, so it is difficult to apply a conventional fire protection structure such as a conventional fire door to various types of structures (eg, a pipe). However, the fire protection capability of structures of relatively complex shapes such as turbines) can also be dramatically improved. Hereinafter, the fire suppression effect of the present invention confirmed by the inventors of the present invention will be described through several simple experimental examples. Hereinafter, when referring to each configuration in the description of the experimental example, the juxtaposition of the reference numerals is omitted.

<Experimental Example 1 - Fire Protection Ability Confirmation Experiment 1>

(Test method)

Test specimens 1, 2, and 3 were prepared by laminating a fire protection coating layer on a support sheet, and a comparative test specimen was prepared by coating silicone on the same support sheet. The support sheet used a coated glass fiber sheet (silicone coated glass fiber, NH new material) coated with silicone on both sides. Innocean Factory, product name AFC) 2.5 parts by weight, expanded graphite (I found it on the Internet and wrote it down. Youil Chemitech Co., Ltd., fixed carbon ratio 95-99.9%, +80mesh, expansion ratio 250-350 product) in a ratio of 10 parts by weight, Specimens 2, 2.5 parts by weight of the digestive capsule, 20 parts by weight of expanded graphite, and test body 3, 5 parts by weight of the digestive capsule and 20 parts by weight of expanded graphite, respectively, were prepared as specimens 1, 2, and 3, respectively. Specimens 1, 2, and 3 and the comparative test specimens were all formed in the same size in the form of a flat sheet of 15 × 15 cm size, and each was heated to a temperature of about 1000 ° C. . In the case of specimens 1, 2, and 3, the fire protection coating layer was directly heated, and in the case of the comparative specimen, the silicone coating layer was directly heated to observe whether it was melted.

(Experiment result)

It was confirmed that the comparative specimens were melted and drilled, whereas specimens 1, 2, and 3 were not all drilled. In addition, the fire protection coating layers of specimens 2 and 3 expanded approximately twice as thick as the fire protection coating layer of specimen 1, which is considered to be the difference in the ratio of expanded graphite.

<Experimental Example 2 - Fire Protection Ability Test 2>

(Test method)

Prepare the same test specimens 1, 2, 3 and comparative test specimens as in Experimental Example 1, and 15 × 15 × 15 cm rectangular box (calcium silicate non-combustible board production box), and at the bottom of the box, a certain amount of combustion material (heptane) was placed on a plate, and the flame was lit and observed.

(Experiment result)

In the comparative test specimen, the flame continued until all the combustors were burned, whereas in specimens 1 and 2, it was confirmed that the flame was extinguished after approximately 10 seconds, and in specimen 3, it was confirmed that the flame was extinguished after approximately 5 seconds.

<Experimental Example 3 - Structure Application Experiment 1>

(Test method)

A test specimen is prepared by laminating a fire protection coating layer on a support sheet, and a comparative test specimen is prepared by coating silicone on the same support sheet. formed. The support sheet used a coated glass fiber sheet (silicone coated glass fiber, NH new material) coated with silicone, and the fire protection coating layer was formed by applying the above-mentioned coating material, but with a ratio of 2.5 parts by weight of fire extinguishing capsule and 20 parts by weight of expanded graphite. was prepared. The insulation for piping was formed in the form of a pipe with an inner diameter of 15 cm, a thickness of 5 cm, and a length of 30 cm made of mineral wool, and the inner skin of which was made of the same material as the support sheet was used. After absorbing a certain amount of combustion body (eg, 200 g of heptane), each of the insulation materials for the piping applied with the test and comparative specimens were installed in the piping and ignited to ignite from the inside of the insulation material, and the change was observed with the naked eye.

(Experiment result)

It was confirmed that the insulation for piping to which the comparative specimen was applied ignited for about 15 minutes until all combustibles were burned and extinguished naturally, whereas it was confirmed that the insulation for piping to which the specimen was applied was extinguished immediately after about 10 seconds.

<Experimental Example 4 - Structure Application Experiment 2>

(Test method)

The same specimen as in Experimental Example 3 was prepared, and a fire door for a building was manufactured, and the specimen was applied to the fire door for a building. Fire doors for buildings were made by forming a rectangular outer plate of 20 × 20 × 3 cm with a 0.4 mm steel plate and filling the inside with glass wool insulation. The specimen was placed on both sides of the insulation, but the fire protection coating layer was placed on both sides to face the outer plate of the building fire door. A fire door for a building to which the specimen was applied and a fire door for the same building to which the specimen was not applied were heated with a torch to a temperature of approximately 1000°C for 30 minutes, and the time at which the opposite temperature exceeded 140K was compared.

(Experiment result)

It was confirmed that the fire door for a building to which the test specimen was not applied exceeded 140K after 20 minutes, while the Example was maintained at a lower temperature even after 30 minutes.

<Experimental Example 5-Structure Application Experiment 3>

(Test method)

It had the same fire protection coating layer as in Experimental Example 3, but by changing the support sheet to a silica sheet (silica sheet, NH new material), a test specimen was prepared, and a fire screen to which the specimen was applied was manufactured by overlapping the specimen in two layers. For the fire screen structure, the two-layered specimens were spaced apart from each other to form an internal space of 3 mm, and each fire protection coating layer was placed to face each other. In addition, by overlapping silica sheets in two layers and spaced apart from each other, a silica sheet fire screen having an equivalent structure with an internal space of 3 mm was manufactured, and each of the fire screen to which the test specimen was applied and the silica sheet fire screen was heated to a temperature of approximately 1000 ° C with a torch. While heating for a period of time, changes due to flame generation and melting on the opposite side were visually observed.

(Experiment result)

The silica sheet fire screen did not generate any flame, but after 50 minutes, the opposite side of the heated surface was discolored and carbonized traces appeared. On the other hand, it was confirmed that there was no change on the opposite side of the fire screen to which the specimen was applied even after 1 hour had elapsed. Through the above experimental examples, it can be confirmed that the fire response effect of the present invention is very excellent, and it can be confirmed that the effect is maintained even when applied to various types of structures.

5 is a perspective view illustrating a fire insulation structure including a fire prevention sheet member according to an embodiment of the present invention, and FIG. 6 is a fire insulation insulation structure including a fire prevention sheet member according to another embodiment of the present invention. 7 is a perspective view showing a fire prevention screen member including a fire prevention sheet member according to an embodiment of the present invention.

Hereinafter, with reference to FIGS. 5 to 7 , the fire insulation structure including the fire prevention sheet member and the fire prevention screen member including the fire prevention sheet member will be described in detail. Since the fire prevention sheet member mentioned below is substantially the same as the fire prevention sheet member mentioned above, the repeated description thereof will be omitted and the description will be focused on the different parts.

5 and 6, the fire insulation structure 10 (hereinafter referred to as a heat insulation structure) including the fire prevention sheet member of the present invention is the same as the insulation member 11, and the heat insulation member ( 11) may be formed to include a fire prevention sheet member (1) laminated on the outer surface. The fire prevention sheet member 1 is substantially the same as the fire prevention sheet member 1 described in the above-described embodiment to include the above-described base sheet 100 and the fire protection coating layer 200 . The fire insulation structure 10 is formed by coupling the insulation member 11 to the sheet member 1 for fire prevention, and can be conveniently applied to different structures or facilities according to the shape and structure of the insulation member 11 . can

First, the fire insulation structure 10 may be formed in a structure as shown in FIG. 5 . The fire insulation structure 10 includes a heat insulation member 11 and a fire prevention sheet member 1 laminated on the outer surface of the heat insulation member 11, wherein the heat insulation member 11 surrounds the heating element (B). and a first outer surface 11a facing the heating element B and a second outer surface 11b opposite thereto, and the fire prevention sheet member 1 may be stacked on the second outer surface 11b. In this case, the fire protection coating layer 200 may be disposed to face the heat insulating member 11 as shown and be formed in a structure in close contact with the heat insulating member 11 .

The fire insulation structure 10 of this structure is very useful when the heating element B is formed of a pipe or the like. The heat insulating member 11 may be formed, for example, in a cylindrical shape that can surround the pipe according to the shape of the pipe, etc., and the second outer surface 11b of the heat insulating member 11 (ie, does not face the heating element) As shown in the opposite outer surface), it is possible to form the fire insulation heat insulating structure 10 equipped with both the heat insulation effect and the fire prevention effect by laminating the sheet member 1 for fire prevention. The heat insulating member 11 is, for example, similar to the heat insulator of the above-described embodiment, and when it is contaminated by oil, etc., the possibility of ignition may be relatively high by itself, but in the fire prevention sheet member 1 disposed on the outer surface. As it is possible to prevent fire as described above, it can be used without unreasonableness in a pipe or the like. Although the shape of the heat insulating member 11 is illustrated as a cylindrical shape, it is not necessary to be limited as such, and can be deformed into various shapes that can surround the heating element (B). The heating element (B) also does not need to be limited to a shape of a pipe, and when it is formed in a different shape, the shape of the heat insulating member 11 may be correspondingly deformed. In this way, the fire insulation structure 10 can be formed and applied to the structure.

In addition, the fire insulation structure 10 may be formed in another structure as shown in FIG. In such a case, the heat insulating member 11 is inserted into the inner space of the fire door (D) and includes a first outer surface (11a) and a second outer surface (11b) opposite to the inner surface of the fire door (D), respectively, and a fire protection sheet member (1) may be laminated on the first outer surface 11a and the second outer surface 11b, respectively. In particular, in this case, the fire prevention sheet member 1 laminated on each outer surface may form a structure in which the base sheet 100 is disposed to face the heat insulating member 11 and is in close contact with the heat insulating member 11 as shown. That is, the fire insulation structure 10 is formed in a structure in which the fire protection sheet member 1 is laminated on both sides of the heat insulation member 11, so that it can be conveniently applied to a structure such as the fire door D. The fire door (D) may have, for example, both sides formed of iron plates, and an empty space may be formed in the interior between such iron plates. The empty space inside the fire door (D) is usually filled with a heat insulating material, but it is also possible to have both the heat insulation effect and the fire prevention effect by inserting the fire insulation structure 10 of the structure as shown. In this case, the heat insulating member 11 may be formed in a flat plate shape or a rectangular block shape, and the fire prevention sheet member 1 may also be disposed flat. For each fire protection sheet member 1, the base sheet 100 faces the heat insulating member 11, so the fire protection coating layer 200 faces the inner surface of the fire door D, and thus the fire door (D) When heated, it can be operated according to the temperature change of the fire door (D). By operating in this way, the above-mentioned extinguishing gas can be ejected to both sides of the fire door (D), and when it reaches the second temperature, it expands and seals not only the inner space of the fire door (D) but also the outside of the fire door (D) for fire. spread can be prevented.

On the other hand, referring to FIG. 7 , the fire screen member 20 including the fire prevention sheet member of the present invention (hereinafter referred to as the fire screen member has the same meaning) is a pair of fire prevention sheet members 1 to each other. Doedoe overlapping, a pair of fire prevention sheet members (1) including a cavity 21 formed spaced apart from each other in the center, a pair of fire prevention sheet members (1) each fire protection coating layer 200 is a cavity It may be formed to face each other toward (21). That is, as shown, the fire screen member 20 having a cavity 21 therein may be formed, and a pair of fire prevention sheet members 1 may be overlapped in two layers to form such a structure. The fire screen member 20 formed in this way can be thinner than the fire insulation structure 10 inserted into the fire door (see D of FIG. 6) described above, and thus can be more freely arranged in various spaces. In particular, the fire screen member 20 has two fire protection coating layers 200 facing each other toward the inner cavity 21, so that when heat is transferred from the outside, the fire extinguishing gas is discharged to the cavity 21 side and the inside of the cavity 21 is discharged. The fire protection coating layer 200 may expand toward the direction to form a firewall structure in which a kind of fire extinguishing gas is collected. Therefore, even if the volume is relatively small in normal times, in case of a fire, it can be immediately expanded to shield the space. In addition, since the extinguishing gas is collected, it is possible to actively extinguish it even if the flame spreads to the surroundings. In this way, the fire insulation structure 10 and the fire screen member 20 including the fire prevention sheet member 1 are formed to be more conveniently applied to various structures. In addition, this structure is a structure consistent with the structures tested in the above-described experimental examples and the like, and its effect can also be confirmed. In this way, a very effective fire protection structure can be provided.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can realize that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1: sheet member for fire prevention 10: heat insulation structure for fire prevention
11: insulation member 11a: first outer surface
11b: second outer surface 20: screen member for fire prevention
21: cavity 100: base sheet
200: fire protection coating layer 210: first grain
220: second grain 230: resin material
A: Insulation material B: Heating element
C: Fire gas D: Fire door

Claims (9)

a base sheet containing a silica component; and
It is laminated on the outer surface of the base sheet,
First granules in the form of capsules in which the extinguishing agent is destroyed at a first temperature to discharge the extinguishing agent, and second granules made of a thermally expansible material that expands at a second temperature higher than the first temperature, and the first Including a resin material for fixing the granules and the second granules, and a fire protection coating layer formed by mixing the first granules and the second granules in one layer,
The first granules are formed of micronized fire extinguishing capsules in which the fire extinguishing agent is embedded in an outer wall made of a polymer material, and the second granules are made of expanded graphite,
The fire protection coating layer is formed by applying a coating material containing the fire extinguishing capsule, the expanded graphite, and the resin material to the outer surface of the base sheet, and the coating material includes 1 to 10 parts by weight of the fire extinguishing capsule and the expansion It is composed to contain the digestive capsule and the expanded graphite in a ratio of 4 to 35 parts by weight of graphite,
The coating material further contains a flame retardant and a solvent composition, and the solvent composition is made of at least one selected from a xylene-based solvent, an IPA (Isopropyl alcohol)-based solvent, and an ethanol-based solvent, and the resin material is a silicone-based resin and an acrylic-based solvent. Including the resin, the coating material is 1 to 10 parts by weight of the digestive capsule, 4 to 35 parts by weight of the expanded graphite, 10 to 30 parts by weight of the flame retardant, 20 to 35 parts by weight of the silicone resin, 5 to 10 parts by weight of the acrylic resin A sheet member for fire prevention composed to contain each part by weight, and each in a ratio of 20 to 30 parts by weight of the solvent composition. According to claim 1,
The base sheet is formed including a glass fiber sheet, or a coated glass fiber sheet in which a protective layer is formed on at least one surface of the glass fiber sheet,
The fire protection coating layer is a sheet member for fire protection that does not exceed 1 mm in thickness. delete delete delete insulation member; and
Claims 1 and 2, which is laminated on the outer surface of the thermal insulation member, comprising the fire prevention sheet member of any one of claims, the fire insulation structure including a fire prevention sheet member. 7. The method of claim 6,
The heat insulating member is disposed in a form surrounding the heating element and includes a first outer surface facing the heating element and a second outer surface opposite thereto,
The fire protection sheet member is laminated on the second outer surface, the fire protection coating layer is disposed to face the heat insulation member and is in close contact with the heat insulation member, the fire insulation structure including a fire protection sheet member. 7. The method of claim 6,
The heat insulating member is inserted into the inner space of the fire door and includes a first outer surface and a second outer surface respectively opposite to the inner surface of the fire door,
The fire prevention sheet member is laminated on the first outer surface and the second outer surface, respectively, the base sheet is disposed to face the heat insulation member and is in close contact with the heat insulation member, a fire insulation structure including a fire prevention sheet member . A pair of sheet members for fire prevention according to any one of claims 1 and 2 are formed to overlap each other,
A pair of the sheet members for fire prevention including a cavity formed spaced apart from each other in the center,
A pair of the fire prevention sheet member is a fire prevention screen member including a fire prevention sheet member, each of the fire protection coating layer facing each other toward the cavity.

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