KR101668227B1 - Reflective fire radiant heat shield and method for manufacturing the same - Google Patents
Reflective fire radiant heat shield and method for manufacturing the same Download PDFInfo
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- KR101668227B1 KR101668227B1 KR1020160072881A KR20160072881A KR101668227B1 KR 101668227 B1 KR101668227 B1 KR 101668227B1 KR 1020160072881 A KR1020160072881 A KR 1020160072881A KR 20160072881 A KR20160072881 A KR 20160072881A KR 101668227 B1 KR101668227 B1 KR 101668227B1
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- layer
- metal foil
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- ceramic
- mixture solution
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
Abstract
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a reflection type radiation heat shield, and more particularly, to a radiation heat shield using a composite compound capable of protecting main equipment, cables and human life from radiation heat generated in a fire.
When a fire occurs in an industrial site, heat is accumulated in the fire space by convection, conduction, and radiation, resulting in the generation of flammable gas due to the chemical decomposition of the combustible material, and the flame spreads to spread the fire. Nuclear power plants require that major equipment and cables, which are at risk of damage, be sealed with a shield to protect the equipment against such fires. Unlike other buildings, the US Nuclear Regulatory Commission requires that the equipment be protected with a 30-minute radiant heat shield, because the nuclear reactor building is composed of a large single space and the fire hazard is low. have. Radiation heat shields currently in use in the domestic nuclear power industry are imported and used all over the world.
In addition, fire in an offshore plant is one of the major maritime accidents that threaten the safety of property and human life, though the incidence is not high compared to other marine accidents such as engine breakdown, stranding and collision. In large offshore plants such as FPSO (Floating Production Storage Offloading), flammable fluids such as crude oil and gas are handled at all times, and mechanical and electrical equipment for the extraction, storage and disposal of such fluids can act as ignition sources. . Especially, in offshore plant, it is difficult to support fire fighting activities from the outside if a fire occurs. Therefore, it is necessary to equip the offshore plant with the suppressing equipment and manpower that can suppress the fire by the power of the offshore plant. It is necessary to protect the facility for a certain period of time or to suppress the spread of fire.
Especially, in an open space such as FPSO, fire spread due to radiant heat is dominant rather than fire spread by conduction heat and convection heat. Therefore, a shield for shutting off fire radiant heat is more necessary. Until now, there has not been developed a shielding material to block fire radiant heat in Korea, and it is dependent on the total import. The domestic chemical materials industry is highly technologically advanced to the world and produces a variety of flame retardant and non-combustible materials. However, the market for fire shielding is not large, and due to the technology gap with existing foreign shielding manufacturers, It does not actively develop a radiation heat shield.
Accordingly, the inventors of the present invention have developed a radiation heat shielding material using a complex compound capable of protecting main equipment, cables, and human life from radiant heat generated in a fire, and analyzed the fire resistance performance of the product.
On the other hand, prior arts related to a shielding device for protecting a device or a cable in case of a fire include the following documents.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a reflection type radiant heat shield which can protect a main device, a cable or a person's life from radiant heat generated in a fire, and a method of manufacturing the same.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.
According to an aspect of the present invention, there is provided a reflection type radiation heat shielding body comprising a composite compound layer, a metal foil layer adhered to one surface of the composite compound layer, and a silica woven material layer adhered to a back surface of the composite compound layer. Lt; / RTI >
In an embodiment of the present invention, the complex compound layer may be formed by impregnating a substrate formed of ceramic fibers into a mixture solution containing a metal hydroxide, a dispersant, a resin and water, followed by drying.
In an embodiment of the present invention, the metal hydroxide may be aluminum hydroxide (Al (OH) 3 ).
In an embodiment of the present invention, the mixture solution may comprise aluminum hydroxide, a dispersant, a resin, water and other unavoidable impurities.
In the embodiment of the present invention, the ceramic fiber may include at least one of alumina (Al 2 O 3 ) and silica (SiO 2 ).
In an embodiment of the present invention, the metal foil layer may be formed of a stainless steel foil.
In an embodiment of the present invention, the metal foil layer may be formed of an aluminum foil.
In an embodiment of the present invention, the metal foil layer and the silica woven material layer may be adhered to one surface and the rear surface of the composite compound layer using an inorganic type adhesive, respectively.
In an embodiment of the present invention, the inorganic type adhesive may be a ceramic adhesive.
According to another aspect of the present invention, there is provided a method of manufacturing a reflection type radiant heat shield, comprising the steps of: preparing a mixture solution to prepare a mixture solution; impregnating a substrate formed of ceramic fibers into the mixture solution; A first bonding step of bonding the metal foil to one side of the substrate carrying the dried composite compound, and a second bonding step of bonding the metal foil to the ceramic fiber, And a second adhering step of adhering the silica woven fabric to the back surface of the gas carrying the composite compound.
In an embodiment of the present invention, the ceramic fiber substrate on which the complex compound is supported may be passed between the impregnating step and the drying step to reduce the thickness of the ceramic fiber substrate.
In an embodiment of the present invention, the mixture solution may comprise a metal hydroxide, a dispersant, a resin and water.
In an embodiment of the present invention, the metal hydroxide may be aluminum hydroxide (Al (OH) 3 ).
In an embodiment of the present invention, the mixture solution may comprise aluminum hydroxide, a dispersant, a resin, water and other unavoidable impurities.
In an embodiment of the present invention, the ceramic fiber substrate may include at least one of alumina (Al 2 O 3 ) and silica (SiO 2 ).
In an embodiment of the present invention, the metal foil may be formed of a stainless steel foil.
In an embodiment of the present invention, the metal foil may be formed of an aluminum foil.
In an embodiment of the present invention, a metal foil and a silica woven fabric may be adhered to one surface and back surface of the ceramic fiber substrate on which the complex compound is supported by using an inorganic type adhesive in the first adhesion step and the second adhesion step have.
In an embodiment of the present invention, the inorganic type adhesive may be a ceramic adhesive.
According to the embodiment of the present invention, the main device, the cable or the life span can be protected from radiant heat generated in the fire by applying the radiant heat shield applying the composite compound.
It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.
1 is a conceptual diagram showing the configuration of a reflection type radiant heat shield according to the present invention.
2 is a cross-sectional view of the reflection type radiant heat shield of the present invention.
3 is a graph showing differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) results of aluminum hydroxide powder.
4 is a photograph showing an apparatus for testing the fire resistance performance of the reflection type radiation heat shielding body of the present invention.
5 is a graph showing the NFPA-251 standard test temperature curve.
FIG. 6 is a graph showing the results of comparing the fire resistance performance of radiation heat shields impregnated with ordinary ceramic fibers and aluminum hydroxide compounds.
7 is a graph showing the fire resistance performance of a radiation heat shielding material impregnated with an aluminum hydroxide compound as a function of temperature over time.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.
Throughout the specification, when a part is referred to as being "connected" (connected, connected, coupled) with another part, it is not only the case where it is "directly connected" "Is included. Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a conceptual view showing a configuration of a reflection type radiation heat shielding body of the present invention, and FIG. 2 is a sectional view of a reflection type radiation heat shielding body of the present invention.
1 and 2, the reflection type radiation heat shield of the present invention includes a
The
The silica woven
The
In one embodiment of the present invention, aluminum hydroxide, a dispersant, a resin, water and other unavoidable impurities are mixed and stirred to prepare a mixture solution, and ceramic fibers containing alumina (Al 2 O 3 ) and silica (SiO 2 ) After the substrate was impregnated with the prepared mixture solution, the ceramic fiber substrate carrying the composite compound was passed between the two rollers to compress the thickness thereof. The compressed composite fiber was dried at 120 ° C for 1 hour to form a
A
When the aluminum hydroxide (Al (OH) 3 ) is heated, an endothermic reaction starts from about 245 ° C to form a water molecule 1 The moles are lost and the chemical reaction formula is as follows.
2Al (OH) 3 -> 2AlO (OH) + 2H 2 O, 245 o C
2Al (OH 3 ) - > Al 2 O 3 + 3H 2 O, 320 ° C
2 Al (OH) -> Al 2 O 3 + H 2 O,? Q (470 cal / g, endotherm), 550 o C
Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) results of the aluminum hydroxide powder are shown in Figs. 3 (a) and 3 (b). 3 (a) and 3 (b), the first endothermic reaction at about 271 ° C, the second endothermic reaction at about 311 ° C, and the third endothermic reaction at about 537 ° C, It shows characteristics similar to the endothermic temperature in the endothermic reaction equation. Because of this endothermic reaction, the refractory performance of the ceramic fiber radiator shader added with aluminum hydroxide is superior to the ordinary ceramic fiber.
4 is a photograph showing an apparatus for testing fire resistance performance of a radiation heat shield. 4, in order to test the refractory performance of the reflection type radiant heat shield according to the present invention, a radiation heat shield is installed in an opening of an electric heating furnace capable of heating up to 1300 ° C, and a temperature of the rear surface of the radiation shield is measured Respectively. A thermocouple was also installed to specify the temperature inside the electric heating furnace and the outside air temperature. A temperature sensor clamp was installed on the opposite side of the heating surface of the test piece so that the temperature can be measured with each thermometer being separated by at least 200 mm. The temperature distribution on the opposite side of the specimen heating was also confirmed using a thermal imaging camera. The temperature of the inside and outside of the electric heating furnace and the temperature of the rear surface of the radiation shielding agent with time were stored in a data acquisition device (not shown).
The fire resistance performance test was performed according to the NFPA-251 standard test temperature curve as shown in FIG. 5, and the flame resistance performance was confirmed by measuring the temperature on the opposite side of the test piece heating at 843 ° C. The permissible temperature (average temperature, maximum temperature) on the opposite side of the heating to judge whether or not the fire resistance performance of the radiation heat shielding material has passed is as follows.
Average temperature ( o C) = 139 + External temperature
Maximum temperature ( o C) = 139 + external temperature + 41.9
For comparison, a radiation heat shield formed by adhering a stainless steel foil to one side of a general ceramic fiber not immersed in aluminum hydroxide and adhering a silica woven fabric to the back surface thereof was fabricated, and its fire resistance performance was tested. The refractory performance of the reflection type radiation heat shield Performance.
FIG. 5 is a graph showing the results of comparing fire resistance performances of radiation heat shields impregnated with general ceramic fibers and aluminum hydroxide compounds. Referring to FIG. 5, it is shown that the temperature of the opposite surface of the test piece decreases as the thickness increases in both shields. However, it is found that the ceramic fiber shielding material impregnated with the aluminum hydroxide compound has excellent fire resistance have.
6 is a graph showing the fire resistance performance of a radiation heat shielding material impregnated with an aluminum hydroxide compound as a function of temperature over time. Referring to FIG. 6, after 10 minutes from the start of the fire resistance test, the endothermic reaction of aluminum hydroxide impregnated into the shielding body starts and the temperature rise on the surface opposite to the shielding heating is stopped. This is similar to the endothermic reaction in the case of aluminum hydroxide heating as shown in FIGS. 4 (a) and 4 (b), and it is confirmed that the aluminum hydroxide impregnation amount is closely related to the heat transfer characteristic of the shielding body.
A method of producing the reflection type radiation shielding agent of the present invention is as follows.
First, a mixture solution containing aluminum hydroxide, a dispersant, a resin, water, and other unavoidable impurities is prepared. The mixture solution is preferably formed of aluminum hydroxide, a dispersant, a resin, water and other unavoidable impurities.
A substrate formed of ceramic fibers containing at least one of alumina (Al 2 O 3 ) or silica (SiO 2 ) is impregnated into the mixture solution and dried to form a composite compound layer carrying the complex compound on the substrate .
It is preferable to add a step of passing the compound-supported gas through the two rollers one or more times in order to adjust the thickness of the supported compound-bearing gas after the impregnation process and before the drying process to a desired thickness.
By adhering a foil formed of a thin metal film such as stainless steel or aluminum with an inorganic type adhesive such as a ceramic adhesive or the like on one side of the composite compound layer thus formed and adhering a woven material formed of silica on the back side of the composite compound layer with an inorganic type adhesive such as a ceramic adhesive, A reflective type radiation heat shield of the invention is manufactured.
It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.
The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.
100: metal foil layer 200: composite compound layer
300: Silica woven layer
Claims (19)
A metal foil layer adhered to one surface of the complex compound layer; And
A silica woven material layer adhered to the back surface of the complex compound layer; / RTI >
The composite compound layer is formed by impregnating a substrate formed of ceramic fibers into a mixture solution containing a metal hydroxide, a dispersant, a resin and water,
Wherein the metal hydroxide is aluminum hydroxide (Al (OH) 3 ).
Wherein the ceramic fiber comprises at least one of alumina (Al 2 O 3 ) or silica (SiO 2 ).
Wherein the metal foil layer is formed of a stainless steel foil.
Wherein the metal foil layer is formed of aluminum foil.
Wherein the metal foil layer and the silica woven material layer are bonded to one surface and the rear surface of the composite compound layer using an inorganic adhesive agent, respectively.
Wherein the inorganic-based adhesive is a ceramic adhesive.
Preparing a mixture solution to prepare a mixture solution;
Impregnating the mixture solution with a substrate formed of ceramic fibers to support the composite compound on the ceramic fibers;
A drying step of drying the gas carrying the complex compound;
A first bonding step of bonding a metal foil to one side of the substrate carrying the dried composite compound; And
A second adhering step of adhering the silica woven fabric to the back surface of the substrate carrying the dried composite compound; Lt; / RTI >
Wherein the mixture solution comprises a metal hydroxide, a dispersant, a resin and water,
Wherein the metal hydroxide is aluminum hydroxide (Al (OH) 3 ).
Further comprising a rolling step of passing the ceramic fiber substrate bearing the complex compound between the impregnating step and the drying step between the rollers to reduce the thickness thereof.
Wherein the ceramic fiber substrate comprises at least one of alumina (Al 2 O 3 ) and silica (SiO 2 ).
Wherein the metal foil is formed of a stainless steel foil.
Wherein the metal foil is formed of aluminum foil.
Wherein a metal foil and a silica woven fabric are adhered to one surface and a rear surface of the ceramic fiber substrate on which the complex compound is supported using an inorganic adhesive agent in the first adhesion step and the second adhesion step, Way.
Wherein the inorganic-based adhesive is a ceramic adhesive.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160072881A KR101668227B1 (en) | 2016-06-13 | 2016-06-13 | Reflective fire radiant heat shield and method for manufacturing the same |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020160072881A KR101668227B1 (en) | 2016-06-13 | 2016-06-13 | Reflective fire radiant heat shield and method for manufacturing the same |
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| KR101668227B1 true KR101668227B1 (en) | 2016-10-21 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321035A (en) * | 1979-11-09 | 1982-03-23 | Aikoh Co., Ltd. | Heat-insulating construction |
| JPH10160091A (en) * | 1996-11-28 | 1998-06-16 | Mitsubishi Chem Corp | Vacuum insulation material |
| KR101089144B1 (en) | 2011-03-24 | 2011-12-02 | 합자회사 거광산업 | A cable trough |
| JP2014196878A (en) * | 2013-03-29 | 2014-10-16 | イソライト工業株式会社 | Fireproof heat insulation material and its manufacturing method |
-
2016
- 2016-06-13 KR KR1020160072881A patent/KR101668227B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321035A (en) * | 1979-11-09 | 1982-03-23 | Aikoh Co., Ltd. | Heat-insulating construction |
| JPH10160091A (en) * | 1996-11-28 | 1998-06-16 | Mitsubishi Chem Corp | Vacuum insulation material |
| KR101089144B1 (en) | 2011-03-24 | 2011-12-02 | 합자회사 거광산업 | A cable trough |
| JP2014196878A (en) * | 2013-03-29 | 2014-10-16 | イソライト工業株式会社 | Fireproof heat insulation material and its manufacturing method |
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