WO2023243807A1 - Hydrogen storage container laminated by fireproof film and manufacturing process thereof - Google Patents

Hydrogen storage container laminated by fireproof film and manufacturing process thereof Download PDF

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Publication number
WO2023243807A1
WO2023243807A1 PCT/KR2023/002694 KR2023002694W WO2023243807A1 WO 2023243807 A1 WO2023243807 A1 WO 2023243807A1 KR 2023002694 W KR2023002694 W KR 2023002694W WO 2023243807 A1 WO2023243807 A1 WO 2023243807A1
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Prior art keywords
storage container
hydrogen storage
film
dome
refractory
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PCT/KR2023/002694
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French (fr)
Korean (ko)
Inventor
김진구
김종열
장원
정이슬
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일진하이솔루스 주식회사
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Publication of WO2023243807A1 publication Critical patent/WO2023243807A1/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/016—Flame-proofing or flame-retarding additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0066—Flame-proofing or flame-retarding additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/06—Polystyrene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/08—Homopolymers or copolymers of acrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • F17C1/04—Protecting sheathings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0619—Single wall with two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/227—Assembling processes by adhesive means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Definitions

  • the present invention relates to a hydrogen storage container, and in particular, to a hydrogen storage container and a manufacturing process thereof in which a fireproof material is applied to the hydrogen storage container to ensure fireproof performance of the hydrogen storage container.
  • the conventional process of applying a refractory material to a hydrogen storage container has a problem in that there is a high possibility of scratches occurring in the refractory material layer after manufacturing the container, which may reduce the fire resistance performance.
  • the present invention was devised to solve the above-mentioned problems, and the purpose of the present invention is to develop a hydrogen storage container in which a film-type refractory material is applied to the hydrogen storage container so that there is no material loss, productivity is improved, and fire resistance performance is secured. and providing its manufacturing process.
  • a hydrogen storage container for achieving the above object includes a hydrogen storage container body including a cylinder portion and a dome portion at an end of the cylinder portion; and a refractory material film laminated on at least a portion of the dome portion or the cylinder portion of the body.
  • the fireproof film includes an adhesive layer for adhesion to the body.
  • the dome portion includes a first dome portion at one end of the cylinder portion and a second dome portion at the other end of the cylinder portion, and a dome-shaped refractory film is cut and attached to the first dome portion and the second dome portion.
  • a flat refractory film can be cut and attached to the cylinder part.
  • the refractory film is formed by forming a mixture of an insoluble refractory material, a volatile organic solvent, an organic polymer, and a resin into a sheet and curing it, and then forming an adhesive layer on one side of the refractory sheet.
  • the mixture includes 30 to 70% by weight of the insoluble refractory material, 10 to 50% by weight of the volatile organic solvent, 10 to 50% by weight of the organic polymer, and 10 to 30% by weight of the resin.
  • the insoluble refractory materials include sodium silicate, MCA (Melamine Cyanurate), aluminum hydroxide, chlorinated paraffin, DBDPE (Decabromodiphenyl Ethane), TBBA (Tetraromobisphenol A), TCPP ((Tris-chloroisopropyl)phosphate), TEP (Triethyl Phosphate), TBP ( Contains one or more of Tributyl phosphate) and Graphite.
  • the volatile organic solvent includes one or more of toluene and NMP (1-methyl-2-pyrrolidone).
  • the organic polymer includes one or more of Styrene, Acrylic Acid, and Acrylate.
  • the resin includes one or more of PVC (Polyvinyl Chloride), epoxy resin, and butyl-based resin.
  • PVC Polyvinyl Chloride
  • epoxy resin epoxy resin
  • butyl-based resin butyl-based resin
  • the adhesive layer includes one or more of epoxy resin, acrylic resin, and urethane resin.
  • the manufacturing process of a hydrogen storage container includes the steps of cutting a refractory film; and laminating the cut refractory film on at least a portion of the dome or cylinder portion of the hydrogen storage container body.
  • the hydrogen storage container and its manufacturing process using a refractory material to secure the fire resistance of the hydrogen storage container according to the present invention achieve cost savings by attaching a film-type refractory material to the hydrogen storage container, thereby reducing unnecessary material loss compared to the conventional method. This becomes possible and process efficiency also increases.
  • the hydrogen storage container and its manufacturing process using a refractory material to secure the fire resistance of the hydrogen storage container according to the present invention include the adhesive side of a refractory film in which one side is adhesive and the other side is non-adhesive. Since the method of adhering to the container is used, productivity can be improved and fire resistance performance can be improved without a hardening process.
  • the fireproof material is mainly used to reinforce the dome side of the container where the thickness of the container is thin when attaching a fireproof material film with adhesive force to the container. Not only can it be introduced, but as container composite materials become thinner in the future, there is an advantage in that when application is needed to reinforce fire resistance performance in the cylinder part, it can be done by simply attaching the fire retardant film to the cylinder part.
  • the hydrogen storage container and its manufacturing process using fire-resistant materials to secure the fire resistance of the hydrogen storage container according to the present invention are among the various certification items required for distribution when installing the hydrogen storage container in a vehicle. It also has an advantageous effect in easily passing the test certification.
  • Figure 1 is a diagram for explaining a method of applying a refractory material to a conventional hydrogen storage container.
  • Figure 2 is a flowchart for explaining a method of manufacturing a refractory film according to an embodiment of the present invention.
  • Figure 3 is a flowchart illustrating a hydrogen storage container manufacturing process of applying a fireproof material to a hydrogen storage container according to an embodiment of the present invention.
  • Figure 4 shows an example of a refractory film for the dome of the hydrogen storage container of Figure 3.
  • Figure 5 shows an example of a refractory film for the cylinder part of the hydrogen storage container of Figure 3.
  • Figure 6 shows an example of a hydrogen storage container according to an embodiment of the present invention.
  • Figure 7 is an example of attachment of the refractory film of the present invention to a carbon composite material.
  • Figure 8 is a diagram to explain the test results for Figure 7.
  • first, second, etc. may be used to describe various components, but the components are not limited by the terms, and the terms are used for the purpose of distinguishing one component from another component. It is used only as
  • Figure 2 is a flowchart for explaining a method of manufacturing a refractory film according to an embodiment of the present invention.
  • the method for manufacturing a refractory material film includes preparing a refractory material mixture (S110) and manufacturing a refractory material sheet by molding and curing it into a sheet form (S120). , a step of forming an adhesive layer on one side of the fireproof material sheet (S130), and a shipping step after producing the fireproof material film (S140).
  • insoluble refractory material e.g., 30 to 70 wt%), volatile organic solvent (e.g., 10 to 50 wt%), organic polymer (e.g., 10 to 50 wt%) and resin (e.g., 10 to 50 wt%) Prepare a mixture of ⁇ 30% by weight).
  • the insoluble refractory materials include sodium silicate, MCA (Melamine Cyanurate), aluminum hydroxide, chlorinated paraffin, DBDPE (Decabromodiphenyl Ethane), TBBA (Tetraromobisphenol A), TCPP ((Tris-chloroisopropyl)phosphate), TEP (Triethyl Phosphate), TBP ( It may contain one or more of Tributyl phosphate) and Graphite.
  • the volatile organic solvent may include one or more of toluene and NMP (1-methyl-2-pyrrolidone).
  • the organic polymer may include one or more of Styrene, Acrylic Acid, and Acrylate.
  • the resin may include one or more of PVC (Polyvinyl Chloride), epoxy resin, and butyl-based resin.
  • the mixture is molded into a sheet form and cured in step S120 to produce a refractory material sheet.
  • the calendar method, T-die extrusion method, etc. may preferably be used, and the casting method may be used as needed.
  • the sheet shape includes a flat sheet or dome-shaped sheet for application to the cylinder or dome of the hydrogen storage container.
  • an adhesive layer for adhesion to the hydrogen storage container body is formed on one side of the refractory sheet (S130).
  • the adhesive layer may include one or more of epoxy resin, acrylic resin, and urethane resin.
  • a fireproof material film with release paper attached to the adhesive layer side that is, a dome-shaped fireproof material film as shown in Figure 4 or a flat fireproof material film as shown in Figure 5, can be shipped in the form of a product (S140).
  • Figure 3 is a flowchart illustrating a hydrogen storage container manufacturing process of applying a fireproof material to a hydrogen storage container according to an embodiment of the present invention.
  • the hydrogen storage container manufacturing process includes receiving hydrogen storage container dimension information (S210), cutting the refractory film (S220), and cutting the refractory film. It includes a step (S230) of laminating on at least a portion of the dome portions 11 and 12 or the cylinder portion 10 of the hydrogen storage container body (10, 11, and 12 in FIG. 6).
  • step S210 dimensional information of the hydrogen storage container bodies 10, 11, and 12 may be obtained (or obtained) or input through a computer or the like to enable electronic processing.
  • a dome-shaped refractory film as shown in FIG. 4 can be cut according to the dimensional information for the corresponding part.
  • a flat refractory film as shown in FIG. 5 can be cut according to the dimensional information for the corresponding part.
  • the release paper on one side is removed and the side with the adhesive layer is attached to the corresponding part of the hydrogen storage container ( S230).
  • the hydrogen storage container when the hydrogen storage container includes a first dome portion 11 at one end of the cylinder portion 10 and a second dome portion 12 at the other end of the cylinder portion 10,
  • the first dome portion 11 at one end of the hydrogen storage container body (10, 11, 12) and the first dome portion 11 at the other end of the hydrogen storage container body (10, 11, 12) 2 Cut each dome-shaped fireproof material film for the dome portion 12.
  • step S230 the first dome portion 11 at one end of the hydrogen storage container body (10, 11, 12) and the second dome portion 12 at the other end of the hydrogen storage container body (10, 11, 12) Attach each of the cut dome-shaped refractory films to the.
  • Attachment of the dome-shaped refractory material film to each of the first dome portion 11 and the second dome portion 12 means attaching it to cover at least 50% or more of the entire area of each dome portion, preferably the entire dome portion and the cylinder portion therefrom. It extends to (10) and can be attached to cover even part of the cylinder portion (10).
  • a flat refractory film as shown in FIG. 5 is cut.
  • Figure 6 shows an example of a hydrogen storage container according to an embodiment of the present invention.
  • the hydrogen storage container can be made of various composite materials such as carbon composite materials, and has a cylinder portion 10 and a dome portion 11 at the end of the cylinder portion 10. 12) a hydrogen storage container body (10, 11, 12) and a refractory film laminated on at least a portion of the dome portions (11, 12) or the cylinder portion (10) of the bodies (10, 11, 12) (FIG. 4 / Figure 5) may be included.
  • the dome portions 11 and 12 may include a first dome portion 11 at one end of the cylinder portion 10 and a second dome portion 12 at the other end of the cylinder portion 10.
  • the dome portions 11 and 12 are provided at both ends of the cylinder portion 10, but in some cases, one end or both ends of the cylinder portion 10 are flat (e.g., circular planes). There may also be.
  • a dome-shaped refractory film as shown in FIG. 4 is manufactured and attached to the dome portions 11 and 12 of the hydrogen storage container.
  • a flat refractory film is produced and attached to the cylinder part 10 of the hydrogen storage container or the flat surface, as shown in FIG. 5.
  • the refractory film of the present invention (FIGS. 4 and 5) can be laminated by adhering to at least a portion of the cylinder part 10 or the dome parts 11 and 12 of the hydrogen storage container.
  • Figure 7 is an example of attachment of the refractory film of the present invention to a carbon composite material.
  • the fireproof material film of the present invention as described above was attached to a carbon composite material, which is a material of a hydrogen storage container, and an experiment was performed as follows.
  • the maximum temperature on the carbon composite material side which is the material of the hydrogen storage container, is 211.8°C, which is good, and swelling occurs.
  • the raised thickness was good at 15.79mm.
  • the process of applying a refractory material to secure the fire resistance performance of a hydrogen storage container enables cost reduction by attaching a film-type refractory material to the hydrogen storage container, thereby eliminating unnecessary loss of material compared to the conventional method. Process efficiency also increases.
  • the process of applying a refractory material to secure the fire resistance performance of a hydrogen storage container uses a method of attaching the adhesive side of a refractory material film, in which one side is adhesive and the other side is non-adhesive, to the container. Therefore, productivity can be improved and fire resistance performance can be improved without a hardening process.
  • the refractory material in the process of applying a refractory material to secure the fire resistance performance of a hydrogen storage container according to the present invention, can be introduced mainly to reinforce the dome side of the container where the thickness of the container is thin when attaching a refractory film with adhesive force to the container, and can also be used in the future.
  • the container composite becomes thinner, there is an advantage in that when application is needed to reinforce fire resistance performance in the cylinder section, it is possible to simply attach the fire retardant film to the cylinder section.
  • the fire-resistant material application process for securing the fire resistance of the hydrogen storage container according to the present invention is to simply pass the flame test certification to ensure safety in the event of a vehicle fire among the various certification items required for distribution when installing the hydrogen storage container in a vehicle. There is also a beneficial effect.

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Abstract

The present invention relates to: a hydrogen storage container on which a fireproof film is laminated; and a manufacturing process thereof. The hydrogen storage container according to the present invention includes: a hydrogen storage container body including a cylinder part and dome parts at the ends of the cylinder part; and a fireproof film laminated on at least a portion of the dome parts or the cylinder part of the body.

Description

내화재 필름이 적층된 수소저장용기 및 그 제조 공정Hydrogen storage container with laminated fire retardant film and its manufacturing process
본 발명은 수소저장용기에 관한 것으로서, 특히, 수소저장용기의 내화 성능 확보를 위해 수소저장용기에 내화재를 적용한 수소저장용기 및 그 제조 공정에 관한 것이다.The present invention relates to a hydrogen storage container, and in particular, to a hydrogen storage container and a manufacturing process thereof in which a fireproof material is applied to the hydrogen storage container to ensure fireproof performance of the hydrogen storage container.
일반적으로 수소저장용기에 내화 성능을 부여하기 위해 내화재의 도입이 필요하다. 수소저장용기에 내화재를 적용하는 종래의 공정은, 도 1과 같이 수소저장용기(5)의 일반적으로 가장 얇은 돔부 외곽에 내화재를 스프레이 형식으로 도포하고 경화하는 방법을 사용한다. In general, the introduction of fire-resistant materials is necessary to provide fire-resistant performance to hydrogen storage containers. The conventional process of applying a refractory material to a hydrogen storage container uses a method of spraying and curing the refractory material on the outside of the generally thinnest dome of the hydrogen storage container 5, as shown in FIG. 1.
그러나, 이와 같은 수소저장용기에 내화재를 적용하는 종래의 공정은, 스프레이 형식으로 분사하기 때문에 도포해야하는 목표 지점이 아닌 곳에도 도포가 된다는 단점이 있다. 이로 인해 재료가 손실되는 양이 매우 커져 원가 절감이 어렵다. 또한, 분사 시 조절이 용이하지 않아 도포 자체가 균일하게 이루어지지 않는 문제점이 있다.However, the conventional process of applying fireproofing materials to such hydrogen storage containers has the disadvantage of being applied in places other than the target area because it is sprayed in a spray form. As a result, the amount of material loss becomes very large, making it difficult to reduce costs. In addition, there is a problem in that the application itself is not performed uniformly because it is not easy to control the spray.
또한, 수소저장용기에 내화재를 적용하는 종래의 공정은, 도포 공정 후에도 내화재를 경화시키기 위한 경화 공정이 필수적이므로 공정 시간 자체가 길어지고, 공정 시간이 길어지면 생산성이 저하되는 문제점이 있다.In addition, the conventional process of applying a refractory material to a hydrogen storage container requires a curing process to harden the refractory material even after the application process, so the process time itself becomes long, and as the process time increases, productivity decreases.
나아가, 수소저장용기에 내화재를 적용하는 종래의 공정은, 용기 제작 후 내화재 층에 스크래치가 생길 가능성이 높아 내화 성능을 떨어뜨릴 수 있는 문제점이 있다. Furthermore, the conventional process of applying a refractory material to a hydrogen storage container has a problem in that there is a high possibility of scratches occurring in the refractory material layer after manufacturing the container, which may reduce the fire resistance performance.
따라서, 본 발명은 상술한 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은, 재료 손실이 없으며 생산성이 향상되고 내화 성능의 확보될 수 있도록 필름 형태의 내화재를 수소저장용기에 적용한 수소저장용기 및 그 제조 공정을 제공하는 데 있다.Therefore, the present invention was devised to solve the above-mentioned problems, and the purpose of the present invention is to develop a hydrogen storage container in which a film-type refractory material is applied to the hydrogen storage container so that there is no material loss, productivity is improved, and fire resistance performance is secured. and providing its manufacturing process.
먼저, 본 발명의 특징을 요약하면, 상기의 목적을 달성하기 위한 본 발명의 일면에 따른 수소저장용기는, 실린더부 및 상기 실린더부의 단부의 돔부를 포함하는 수소저장용기 바디; 및 상기 바디의 상기 돔부 또는 상기 실린더부 중 최소한 일부에 적층된 내화재 필름을 포함한다.First, to summarize the features of the present invention, a hydrogen storage container according to one aspect of the present invention for achieving the above object includes a hydrogen storage container body including a cylinder portion and a dome portion at an end of the cylinder portion; and a refractory material film laminated on at least a portion of the dome portion or the cylinder portion of the body.
상기 내화재 필름은 상기 바디와 접착을 위한 접착제층을 포함한다.The fireproof film includes an adhesive layer for adhesion to the body.
상기 돔부는, 상기 실린더부의 일측 단부의 제1 돔부 및 상기 실린더부의 타측 단부의 제2 돔부를 포함하고, 상기 제1 돔부 및 상기 제2 돔부에 돔형 내화재 필름을 재단하여 부착한다. The dome portion includes a first dome portion at one end of the cylinder portion and a second dome portion at the other end of the cylinder portion, and a dome-shaped refractory film is cut and attached to the first dome portion and the second dome portion.
또한, 상기 실린더부에 평면형 내화재 필름을 재단하여 부착할 수 있다.Additionally, a flat refractory film can be cut and attached to the cylinder part.
상기 내화재 필름은, 불용성 내화재, 휘발성 유기용매, 유기 중합체 및 레진의 혼합물을 시트 형태로 성형하고 경화한 내화재 시트의 한쪽면에 접착제층을 형성한 형태이다.The refractory film is formed by forming a mixture of an insoluble refractory material, a volatile organic solvent, an organic polymer, and a resin into a sheet and curing it, and then forming an adhesive layer on one side of the refractory sheet.
상기 혼합물은, 상기 불용성 내화재는 30~70 중량%, 상기 휘발성 유기용매 10~50 중량%, 상기 유기 중합체는 10~50 중량% 및 상기 레진 10~30 중량%를 포함한다.The mixture includes 30 to 70% by weight of the insoluble refractory material, 10 to 50% by weight of the volatile organic solvent, 10 to 50% by weight of the organic polymer, and 10 to 30% by weight of the resin.
상기 불용성 내화재는, 규산나트륨, MCA(Melamine Cyanurate), 수산화알루미늄, 염화파라핀, DBDPE(Decabromodiphenyl Ethane), TBBA(Tetraromobisphenol A), TCPP((Tris-chloroisopropyl)phosphate), TEP(Triethyl Phosphate), TBP(Tributyl phosphate), Graphite 중 어느 하나 이상을 포함한다.The insoluble refractory materials include sodium silicate, MCA (Melamine Cyanurate), aluminum hydroxide, chlorinated paraffin, DBDPE (Decabromodiphenyl Ethane), TBBA (Tetraromobisphenol A), TCPP ((Tris-chloroisopropyl)phosphate), TEP (Triethyl Phosphate), TBP ( Contains one or more of Tributyl phosphate) and Graphite.
상기 휘발성 유기용매는, 톨루엔, NMP(1-methyl-2-pyrrolidone) 중 하나 이상을 포함한다.The volatile organic solvent includes one or more of toluene and NMP (1-methyl-2-pyrrolidone).
상기 유기 중합체는, Styrene, Acrylic Acid, Acrylate 중 하나 이상을 포함한다.The organic polymer includes one or more of Styrene, Acrylic Acid, and Acrylate.
상기 레진은, PVC(Polyvinyl Chloride), 에폭시 수지, Butyl계 Resin 중 하나 이상을 포함한다.The resin includes one or more of PVC (Polyvinyl Chloride), epoxy resin, and butyl-based resin.
상기 접착제층은, 에폭시 수지, 아크릴 수지, 우레탄 수지 중 하나 이상을 포함한다.The adhesive layer includes one or more of epoxy resin, acrylic resin, and urethane resin.
그리고, 본 발명의 다른 일면에 따른, 수소저장용기의 제조 공정은, 내화재 필름을 재단하는 단계; 및 재단된 상기 내화재 필름을 상기 수소저장용기 바디의 돔부 또는 실린더부 중 최소한 일부에 적층하는 단계를 포함한다. And, according to another aspect of the present invention, the manufacturing process of a hydrogen storage container includes the steps of cutting a refractory film; and laminating the cut refractory film on at least a portion of the dome or cylinder portion of the hydrogen storage container body.
본 발명에 따른 수소저장용기 내화 성능 확보를 위한 내화재를 적용한 수소저장용기 및 그 제조 공정은, 필름 형태의 내화재를 수소저장용기에 부착 적용함으로써 종래의 방법 보다 불필요하게 재료가 손실되지 않아 원가절감이 가능해지고 공정 효율성 또한 높아진다. The hydrogen storage container and its manufacturing process using a refractory material to secure the fire resistance of the hydrogen storage container according to the present invention achieve cost savings by attaching a film-type refractory material to the hydrogen storage container, thereby reducing unnecessary material loss compared to the conventional method. This becomes possible and process efficiency also increases.
또한, 본 발명에 따른 수소저장용기 내화 성능 확보를 위한 내화재를 적용한 수소저장용기 및 그 제조 공정은, 일면은 접착성이 있고 그 이면은 접착성이 없는 형태의 내화재 필름의 접착성이 있는 면을 용기에 접착시키는 방법을 사용하므로, 경화 공정 없이 생산성이 향상되며 내화 성능을 향상시킬 수 있다.In addition, the hydrogen storage container and its manufacturing process using a refractory material to secure the fire resistance of the hydrogen storage container according to the present invention include the adhesive side of a refractory film in which one side is adhesive and the other side is non-adhesive. Since the method of adhering to the container is used, productivity can be improved and fire resistance performance can be improved without a hardening process.
또한, 본 발명에 따른 수소저장용기 내화 성능 확보를 위한 내화재를 적용한 수소저장용기 및 그 제조 공정은, 접착력을 보유한 내화재 필름을 용기에 접착시킬 때 주로 용기 두께가 얇은 돔부 쪽을 보강하기 위해 내화재가 도입될 수 있을 뿐만 아니라 향후 용기 복합재가 얇아질수록 실린더부에 내화 성능의 보강을 위해 적용이 필요할 시 내화재 필름을 간단하게 실린더부에 접착함으로써 가능해지는 이점이 있다.In addition, in the hydrogen storage container and its manufacturing process using a fireproof material to secure the fireproof performance of the hydrogen storage container according to the present invention, the fireproof material is mainly used to reinforce the dome side of the container where the thickness of the container is thin when attaching a fireproof material film with adhesive force to the container. Not only can it be introduced, but as container composite materials become thinner in the future, there is an advantage in that when application is needed to reinforce fire resistance performance in the cylinder part, it can be done by simply attaching the fire retardant film to the cylinder part.
그리고, 본 발명에 따른 수소저장용기 내화 성능 확보를 위한 내화재를 적용한 수소저장용기 및 그 제조 공정은, 수소저장용기를 차량에 장착 시 유통에 요구되는 다양한 인증 항목 중 차량 화재 시 안전 확보를 위한 화염 시험 인증을 간단히 통과하는 데에도 유리한 효과가 있다.In addition, the hydrogen storage container and its manufacturing process using fire-resistant materials to secure the fire resistance of the hydrogen storage container according to the present invention are among the various certification items required for distribution when installing the hydrogen storage container in a vehicle. It also has an advantageous effect in easily passing the test certification.
본 발명에 관한 이해를 돕기 위해 상세한 설명의 일부로 포함되는 첨부도면은, 본 발명에 대한 실시예를 제공하고 상세한 설명과 함께 본 발명의 기술적 사상을 설명한다.The accompanying drawings, which are included as part of the detailed description to aid understanding of the present invention, provide embodiments of the present invention and explain the technical idea of the present invention along with the detailed description.
도 1은 종래의 수소저장용기에 내화재 도포 방식을 설명하기 위한 도면이다.Figure 1 is a diagram for explaining a method of applying a refractory material to a conventional hydrogen storage container.
도 2는 본 발명의 일 실시예에 따른 내화재 필름의 제조 방법을 설명하기 위한 흐름도이다.Figure 2 is a flowchart for explaining a method of manufacturing a refractory film according to an embodiment of the present invention.
도 3은 본 발명의 일 실시예에 따른 수소저장용기에 내화재를 적용하는 수소저장용기 제조 공정을 설명하기 위한 흐름도이다.Figure 3 is a flowchart illustrating a hydrogen storage container manufacturing process of applying a fireproof material to a hydrogen storage container according to an embodiment of the present invention.
도 4는 도 3의 수소저장용기의 돔부용 내화재 필름의 일례를 나타낸다. Figure 4 shows an example of a refractory film for the dome of the hydrogen storage container of Figure 3.
도 5는 도 3의 수소저장용기의 실린더부용 내화재 필름의 일례를 나타낸다. Figure 5 shows an example of a refractory film for the cylinder part of the hydrogen storage container of Figure 3.
도 6은 본 발명의 일 실시예에 따른 수소저장용기의 일례를 나타낸다. Figure 6 shows an example of a hydrogen storage container according to an embodiment of the present invention.
도 7은 탄소복합소재에 본 발명의 내화재 필름의 부착예이다.Figure 7 is an example of attachment of the refractory film of the present invention to a carbon composite material.
도 8은 도 7에 대한 시험 결과를 설명하기 위한 도표이다.Figure 8 is a diagram to explain the test results for Figure 7.
이하에서는 첨부된 도면들을 참조하여 본 발명에 대해서 자세히 설명한다. 이때, 각각의 도면에서 동일한 구성 요소는 가능한 동일한 부호로 나타낸다. 또한, 이미 공지된 기능 및/또는 구성에 대한 상세한 설명은 생략한다. 이하에 개시된 내용은, 다양한 실시 예에 따른 동작을 이해하는데 필요한 부분을 중점적으로 설명하며, 그 설명의 요지를 흐릴 수 있는 요소들에 대한 설명은 생략한다. 또한 도면의 일부 구성요소는 과장되거나 생략되거나 또는 개략적으로 도시될 수 있다. 각 구성요소의 크기는 실제 크기를 전적으로 반영하는 것이 아니며, 따라서 각각의 도면에 그려진 구성요소들의 상대적인 크기나 간격에 의해 여기에 기재되는 내용들이 제한되는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to the attached drawings. At this time, the same components in each drawing are indicated by the same symbols whenever possible. Additionally, detailed descriptions of already known functions and/or configurations will be omitted. The content disclosed below focuses on the parts necessary to understand operations according to various embodiments, and descriptions of elements that may obscure the gist of the explanation are omitted. Additionally, some components in the drawings may be exaggerated, omitted, or shown schematically. The size of each component does not entirely reflect the actual size, and therefore the content described here is not limited by the relative sizes or spacing of the components drawn in each drawing.
본 발명의 실시예들을 설명함에 있어서, 본 발명과 관련된 공지기술에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략하기로 한다. 그리고, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례 등에 따라 달라질 수 있다. 그러므로 그 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다. 상세한 설명에서 사용되는 용어는 단지 본 발명의 실시 예들을 기술하기 위한 것이며, 결코 제한적이어서는 안 된다. 명확하게 달리 사용되지 않는 한, 단수 형태의 표현은 복수 형태의 의미를 포함한다. 본 설명에서, "포함" 또는 "구비"와 같은 표현은 어떤 특성들, 숫자들, 단계들, 동작들, 요소들, 이들의 일부 또는 조합을 가리키기 위한 것이며, 기술된 것 이외에 하나 또는 그 이상의 다른 특성, 숫자, 단계, 동작, 요소, 이들의 일부 또는 조합의 존재 또는 가능성을 배제하도록 해석되어서는 안 된다. In describing the embodiments of the present invention, if it is determined that a detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definition should be made based on the contents throughout this specification. The terminology used in the detailed description is only for describing embodiments of the present invention and should in no way be limiting. Unless explicitly stated otherwise, singular forms include plural meanings. In this description, expressions such as “comprising” or “comprising” are intended to indicate certain features, numbers, steps, operations, elements, parts or combinations thereof, and one or more than those described. It should not be construed to exclude the existence or possibility of any other characteristic, number, step, operation, element, or part or combination thereof.
또한, 제1, 제2 등의 용어는 다양한 구성요소들을 설명하는데 사용될 수 있지만, 상기 구성요소들은 상기 용어들에 의해 한정되는 것은 아니며, 상기 용어들은 하나의 구성요소를 다른 구성요소로부터 구별하는 목적으로만 사용된다.In addition, terms such as first, second, etc. may be used to describe various components, but the components are not limited by the terms, and the terms are used for the purpose of distinguishing one component from another component. It is used only as
도 2는 본 발명의 일 실시예에 따른 내화재 필름의 제조 방법을 설명하기 위한 흐름도이다.Figure 2 is a flowchart for explaining a method of manufacturing a refractory film according to an embodiment of the present invention.
도 2를 참조하면, 본 발명의 일 실시예에 따른 내화재 필름의 제조 방법은, 내화재 혼합물을 준비하는 단계(S110), 시트(sheet) 형태로 성형하고 경화하여 내화재 시트를 제조하는 단계(S120), 내화재 시트의 한쪽면에 접착제층을 형성하는 단계(S130) 및 내화재 필름 생산 후 출고 단계(S140)를 포함한다. Referring to FIG. 2, the method for manufacturing a refractory material film according to an embodiment of the present invention includes preparing a refractory material mixture (S110) and manufacturing a refractory material sheet by molding and curing it into a sheet form (S120). , a step of forming an adhesive layer on one side of the fireproof material sheet (S130), and a shipping step after producing the fireproof material film (S140).
상술하면, 먼저, S110 단계에서 불용성 내화재(예, 30~70 중량%), 휘발성 유기용매(예, 10~50 중량%), 유기 중합체(예, 10~50 중량%) 및 레진(예, 10~30 중량%)의 혼합물을 준비한다. In detail, first, in step S110, insoluble refractory material (e.g., 30 to 70 wt%), volatile organic solvent (e.g., 10 to 50 wt%), organic polymer (e.g., 10 to 50 wt%) and resin (e.g., 10 to 50 wt%) Prepare a mixture of ~30% by weight).
상기 불용성 내화재는, 규산나트륨, MCA(Melamine Cyanurate), 수산화알루미늄, 염화파라핀, DBDPE(Decabromodiphenyl Ethane), TBBA(Tetraromobisphenol A), TCPP((Tris-chloroisopropyl)phosphate), TEP(Triethyl Phosphate), TBP(Tributyl phosphate), Graphite 중 어느 하나 이상을 포함할 수 있다. 상기 휘발성 유기용매는, 톨루엔, NMP(1-methyl-2-pyrrolidone) 중 하나 이상을 포함할 수 있다. 상기 유기 중합체는, Styrene, Acrylic Acid, Acrylate 중 하나 이상을 포함할 수 있다. 상기 레진은, PVC(Polyvinyl Chloride), 에폭시 수지, Butyl계 Resin 중 하나 이상을 포함할 수 있다.The insoluble refractory materials include sodium silicate, MCA (Melamine Cyanurate), aluminum hydroxide, chlorinated paraffin, DBDPE (Decabromodiphenyl Ethane), TBBA (Tetraromobisphenol A), TCPP ((Tris-chloroisopropyl)phosphate), TEP (Triethyl Phosphate), TBP ( It may contain one or more of Tributyl phosphate) and Graphite. The volatile organic solvent may include one or more of toluene and NMP (1-methyl-2-pyrrolidone). The organic polymer may include one or more of Styrene, Acrylic Acid, and Acrylate. The resin may include one or more of PVC (Polyvinyl Chloride), epoxy resin, and butyl-based resin.
다음에, 이와 같이 내화재 혼합물이 준비되면, S120 단계에서 상기 혼합물을 시트 형태로 성형하고 경화하여 내화재 시트를 제조한다. 이와 같은 내화재 시트를 제조하는 방법으로서, 바람직하게는 Calender 공법, T-die 압출 공법 등이 이용될 수 있으며, 필요에 따라서는 Casting 공법 등이 이용될 수도 있다. 여기서 시트 형태는 수소저장용기의 실린더(cylinder)부 또는 돔(dome)부에 적용을 위한 평면형 시트 또는 돔형의 시트 형태를 포함한다. Next, when the refractory material mixture is prepared in this way, the mixture is molded into a sheet form and cured in step S120 to produce a refractory material sheet. As a method of manufacturing such a fireproof material sheet, the calendar method, T-die extrusion method, etc. may preferably be used, and the casting method may be used as needed. Here, the sheet shape includes a flat sheet or dome-shaped sheet for application to the cylinder or dome of the hydrogen storage container.
한편, 위와 같이 평면형 또는 돔형의 내화재 시트를 제조한 후, 내화재 시트의 한쪽면에 수소저장용기 바디(도 6 참조)와 접착을 위한 접착제층을 형성한다(S130). 상기 접착제층은, 에폭시 수지, 아크릴 수지, 우레탄 수지 중 하나 이상을 포함할 수 있다. Meanwhile, after manufacturing a flat or dome-shaped refractory sheet as described above, an adhesive layer for adhesion to the hydrogen storage container body (see FIG. 6) is formed on one side of the refractory sheet (S130). The adhesive layer may include one or more of epoxy resin, acrylic resin, and urethane resin.
내화재 시트에 접착제층을 형성한 후에는, 접착제층 측에 이형지를 붙인 내화재 필름, 즉, 도 4와 같은 돔형 내화재 필름, 도 5와 같은 평면형 내화재 필름을 제품 형태로 출고할 수 있다(S140).After forming the adhesive layer on the fireproof material sheet, a fireproof material film with release paper attached to the adhesive layer side, that is, a dome-shaped fireproof material film as shown in Figure 4 or a flat fireproof material film as shown in Figure 5, can be shipped in the form of a product (S140).
도 3은 본 발명의 일 실시예에 따른 수소저장용기에 내화재를 적용하는 수소저장용기 제조 공정을 설명하기 위한 흐름도이다.Figure 3 is a flowchart illustrating a hydrogen storage container manufacturing process of applying a fireproof material to a hydrogen storage container according to an embodiment of the present invention.
도 3을 참조하면, 본 발명의 일 실시예에 따른 수소저장용기 제조 공정은, 수소저장용기 치수 정보를 입력받는 단계(S210), 내화재 필름을 재단하는 단계(S220), 재단된 상기 내화재 필름을 상기 수소저장용기 바디(도 6의 10, 11, 12)의 돔부(11, 12) 또는 실린더부(10) 중 최소한 일부에 적층하는 단계(S230)를 포함한다. Referring to FIG. 3, the hydrogen storage container manufacturing process according to an embodiment of the present invention includes receiving hydrogen storage container dimension information (S210), cutting the refractory film (S220), and cutting the refractory film. It includes a step (S230) of laminating on at least a portion of the dome portions 11 and 12 or the cylinder portion 10 of the hydrogen storage container body (10, 11, and 12 in FIG. 6).
상술하면, 먼저, S210 단계에서, 수소저장용기 바디(10, 11, 12)의 치수 정보를 입수(또는 획득)하거나 전자적 처리가 가능하도록 컴퓨터 등으로 입력받을 수도 있다.In detail, first, in step S210, dimensional information of the hydrogen storage container bodies 10, 11, and 12 may be obtained (or obtained) or input through a computer or the like to enable electronic processing.
다음에, 수소저장용기 바디(10, 11, 12), 예를 들어, 돔부(11, 12)에 부착하기 위하여, 해당 부분에 대한 치수 정보에 따라, 도 4와 같은 돔형 내화재 필름을 재단할 수 있으며, 또는 수소저장용기의 바디(10, 11, 12), 예를 들어, 실린더부(10)에 부착하기 위하여, 해당 부분에 대한 치수 정보에 따라 도 5와 같은 평면형 내화재 필름을 재단할 수 있다(S220).Next, in order to attach it to the hydrogen storage container body (10, 11, 12), for example, the dome portion (11, 12), a dome-shaped refractory film as shown in FIG. 4 can be cut according to the dimensional information for the corresponding part. Alternatively, in order to attach it to the body (10, 11, 12) of the hydrogen storage container, for example, the cylinder portion (10), a flat refractory film as shown in FIG. 5 can be cut according to the dimensional information for the corresponding part. (S220).
이와 같이 돔형 또는 평면형 내화재 필름을 재단한 후에는, 재단된 해당 내화재 필름을 수소저장용기에 고정하기 위하여, 한쪽면의 이형지 등을 제거해 접착제층이 있는 쪽을 수소저장용기의 해당 부분에 부착한다(S230).After cutting the dome-shaped or flat refractory film in this way, in order to fix the cut refractory film to the hydrogen storage container, the release paper on one side is removed and the side with the adhesive layer is attached to the corresponding part of the hydrogen storage container ( S230).
예를 들어, 도 3과 같이, 수소저장용기가 실린더부(10)의 일측 단부에 제1 돔부(11) 및 실린더부(10)의 타측 단부에 제2 돔부(12)를 포함하는 경우에, 내화재 필름을 재단할 때에(S220), 상기 수소저장용기 바디(10, 11, 12)의 일측 단부의 제1 돔부(11) 및 상기 수소저장용기 바디(10, 11, 12)의 타측 단부의 제2 돔부(12)에 대한 각각의 돔형 내화재 필름을 재단한다. 이후 S230 단계에서, 상기 수소저장용기 바디(10, 11, 12)의 일측 단부의 제1 돔부(11) 및 상기 수소저장용기 바디(10, 11, 12)의 타측 단부의 제2 돔부(12)에 재단된 상기 각각의 돔형 내화재 필름을 부착한다. 제1 돔부(11) 및 제2 돔부(12) 각각에 돔형 내화재 필름의 부착은 각 돔부의 적어도 50% 이상 내지 전체 면적을 커버하도록 부착하는 것을 의미하고, 바람직하게는 각 돔부 전체 및 그로부터 실린더부(10)로 연장되어 실린더부(10) 일부까지도 커버하도록 부착할 수 있다. For example, as shown in FIG. 3, when the hydrogen storage container includes a first dome portion 11 at one end of the cylinder portion 10 and a second dome portion 12 at the other end of the cylinder portion 10, When cutting the refractory film (S220), the first dome portion 11 at one end of the hydrogen storage container body (10, 11, 12) and the first dome portion 11 at the other end of the hydrogen storage container body (10, 11, 12) 2 Cut each dome-shaped fireproof material film for the dome portion 12. Afterwards, in step S230, the first dome portion 11 at one end of the hydrogen storage container body (10, 11, 12) and the second dome portion 12 at the other end of the hydrogen storage container body (10, 11, 12) Attach each of the cut dome-shaped refractory films to the. Attachment of the dome-shaped refractory material film to each of the first dome portion 11 and the second dome portion 12 means attaching it to cover at least 50% or more of the entire area of each dome portion, preferably the entire dome portion and the cylinder portion therefrom. It extends to (10) and can be attached to cover even part of the cylinder portion (10).
또한, 예를 들어, 수소저장용기 바디(10, 11, 12)의 실린더부(10)에 대응된 내화재 필름을 재단할 때에(S220), 도 5와 같은 평면형 내화재 필름을 재단한다. 이후 S230 단계에서, 상기 수소저장용기의 실린더부(10)에 재단된 상기 평면형 내화재 필름을 부착한다. 실린더부(10)에 평면형 내화재 필름의 부착은 실린더부(10)의 적어도 50% 이상 내지 전체 면적을 커버하도록 부착하는 것을 의미하고, 바람직하게는 실린더부(10) 전체 및 그로부터 각 돔부로 연장되어 각 돔부 일부까지도 커버하도록 부착할 수 있다. In addition, for example, when cutting the refractory film corresponding to the cylinder portion 10 of the hydrogen storage container body 10, 11, and 12 (S220), a flat refractory film as shown in FIG. 5 is cut. Afterwards, in step S230, the cut flat refractory film is attached to the cylinder portion 10 of the hydrogen storage container. Attachment of the flat refractory material film to the cylinder portion 10 means attaching it to cover at least 50% or more of the entire area of the cylinder portion 10, and preferably extends to the entire cylinder portion 10 and each dome portion therefrom. It can be attached to cover even part of each dome.
도 6은 본 발명의 일 실시예에 따른 수소저장용기의 일례를 나타낸다. Figure 6 shows an example of a hydrogen storage container according to an embodiment of the present invention.
도 6을 참조하면, 본 발명의 일 실시예에 따른 수소저장용기는, 탄소복합소재 등 다양한 복합소재로 제작될 수 있으며, 실린더부(10) 및 실린더부(10)의 단부에 돔부(11, 12)를 포함하는 수소저장용기 바디(10, 11, 12) 및 상기 바디(10, 11, 12)의 돔부(11, 12) 또는 실린더부(10) 중 최소한 일부에 적층된 내화재 필름(도 4/도 5)을 포함할 수 있다.Referring to FIG. 6, the hydrogen storage container according to an embodiment of the present invention can be made of various composite materials such as carbon composite materials, and has a cylinder portion 10 and a dome portion 11 at the end of the cylinder portion 10. 12) a hydrogen storage container body (10, 11, 12) and a refractory film laminated on at least a portion of the dome portions (11, 12) or the cylinder portion (10) of the bodies (10, 11, 12) (FIG. 4 /Figure 5) may be included.
돔부(11, 12)는, 실린더부(10)의 일측 단부에 제1 돔부(11) 및 실린더부(10)의 타측 단부에 제2 돔부(12)를 포함할 수 있다. 여기서, 돔부(11, 12)가 실린더부(10)의 양측 단부에 구비되는 형태를 예시하였으나, 경우에 따라서는 실린더부(10)의 일측 단부 또는 양측 단부 모두 평면형(예, 원형평면)인 경우도 있을 수 있다. The dome portions 11 and 12 may include a first dome portion 11 at one end of the cylinder portion 10 and a second dome portion 12 at the other end of the cylinder portion 10. Here, the dome portions 11 and 12 are provided at both ends of the cylinder portion 10, but in some cases, one end or both ends of the cylinder portion 10 are flat (e.g., circular planes). There may also be.
상기 수소저장용기의 돔부(11, 12)에는 도 4와 같은 돔형 내화재 필름이 제작되어 부착된다. 또한, 상기 수소저장용기의 실린더부(10) 등이나 평면에는 도 5와 같이 평면형 내화재 필름이 제작되어 부착된다. 상기 수소저장용기의 실린더부(10) 또는 돔부(11, 12) 중 최소한 일부에 본 발명의 내화재 필름(도 4 / 도 5)을 접착하여 적층할 수 있다. A dome-shaped refractory film as shown in FIG. 4 is manufactured and attached to the dome portions 11 and 12 of the hydrogen storage container. In addition, a flat refractory film is produced and attached to the cylinder part 10 of the hydrogen storage container or the flat surface, as shown in FIG. 5. The refractory film of the present invention (FIGS. 4 and 5) can be laminated by adhering to at least a portion of the cylinder part 10 or the dome parts 11 and 12 of the hydrogen storage container.
도 7은 탄소복합소재에 본 발명의 내화재 필름의 부착예이다. 도 7과 같이, 수소저장용기의 재질인 탄소복합소재에 상기와 같은 본 발명의 내화재 필름을 부착하여 다음과 같이 실험하였다. Figure 7 is an example of attachment of the refractory film of the present invention to a carbon composite material. As shown in Figure 7, the fireproof material film of the present invention as described above was attached to a carbon composite material, which is a material of a hydrogen storage container, and an experiment was performed as follows.
즉, 도 8과 같이, 수소저장용기에 최근접으로 불꽃의 온도를 400℃ 이상으로 하고 61분 동안 노출시킨 경우, 수소저장용기의 재질인 탄소복합소재 측에서 최고 온도는 211.8℃로 양호하며 부풀어 오른 두께가 15.79mm로 양호하였다. That is, as shown in FIG. 8, when the temperature of the flame in the closest proximity to the hydrogen storage container is set to 400°C or higher and exposed for 61 minutes, the maximum temperature on the carbon composite material side, which is the material of the hydrogen storage container, is 211.8°C, which is good, and swelling occurs. The raised thickness was good at 15.79mm.
수소저장용기의 재질인 탄소복합소재 시편과 본 발명의 내화재 필름 사이의 온도가 200℃ 가까이 도달하는 데에도 약 12분 정도 걸리므로 매우 우수한 내화 성능을 확인할 수 있었다.It took about 12 minutes for the temperature between the carbon composite material specimen, which is the material of the hydrogen storage container, and the refractory film of the present invention to reach close to 200°C, confirming very excellent fire resistance performance.
상술한 바와 같이, 본 발명에 따른 수소저장용기 내화 성능 확보를 위한 내화재 적용 공정은, 필름 형태의 내화재를 수소저장용기에 부착 적용함으로써 종래의 방법 보다 불필요하게 재료가 손실되지 않아 원가절감이 가능해지고 공정 효율성 또한 높아진다. As described above, the process of applying a refractory material to secure the fire resistance performance of a hydrogen storage container according to the present invention enables cost reduction by attaching a film-type refractory material to the hydrogen storage container, thereby eliminating unnecessary loss of material compared to the conventional method. Process efficiency also increases.
또한, 본 발명에 따른 수소저장용기 내화 성능 확보를 위한 내화재 적용 공정은, 일면은 접착성이 있고 그 이면은 접착성이 없는 형태의 내화재 필름의 접착성이 있는 면을 용기에 접착시키는 방법을 사용하므로, 경화 공정 없이 생산성이 향상되며 내화 성능을 향상시킬 수 있다.In addition, the process of applying a refractory material to secure the fire resistance performance of a hydrogen storage container according to the present invention uses a method of attaching the adhesive side of a refractory material film, in which one side is adhesive and the other side is non-adhesive, to the container. Therefore, productivity can be improved and fire resistance performance can be improved without a hardening process.
또한, 본 발명에 따른 수소저장용기 내화 성능 확보를 위한 내화재 적용 공정은, 접착력을 보유한 내화재 필름을 용기에 접착시킬 때 주로 용기 두께가 얇은 돔부 쪽을 보강하기 위해 내화재가 도입될 수 있을 뿐만 아니라 향후 용기 복합재가 얇아질수록 실린더부에 내화 성능의 보강을 위해 적용이 필요할 시 내화재 필름을 간단하게 실린더부에 접착함으로써 가능해지는 이점이 있다.In addition, in the process of applying a refractory material to secure the fire resistance performance of a hydrogen storage container according to the present invention, the refractory material can be introduced mainly to reinforce the dome side of the container where the thickness of the container is thin when attaching a refractory film with adhesive force to the container, and can also be used in the future. As the container composite becomes thinner, there is an advantage in that when application is needed to reinforce fire resistance performance in the cylinder section, it is possible to simply attach the fire retardant film to the cylinder section.
그리고, 본 발명에 따른 수소저장용기 내화 성능 확보를 위한 내화재 적용 공정은, 수소저장용기를 차량에 장착 시 유통에 요구되는 다양한 인증 항목 중 차량 화재 시 안전 확보를 위한 화염 시험 인증을 간단히 통과하는 데에도 유리한 효과가 있다.In addition, the fire-resistant material application process for securing the fire resistance of the hydrogen storage container according to the present invention is to simply pass the flame test certification to ensure safety in the event of a vehicle fire among the various certification items required for distribution when installing the hydrogen storage container in a vehicle. There is also a beneficial effect.
이상과 같이 본 발명에서는 구체적인 구성 요소 등과 같은 특정 사항들과 한정된 실시예 및 도면에 의해 설명되었으나 이는 본 발명의 보다 전반적인 이해를 돕기 위해서 제공된 것일 뿐, 본 발명은 상기의 실시예에 한정되는 것은 아니며, 본 발명이 속하는 분야에서 통상적인 지식을 가진 자라면 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 다양한 수정 및 변형이 가능할 것이다. 따라서, 본 발명의 사상은 설명된 실시예에 국한되어 정해져서는 아니 되며, 후술하는 특허청구범위뿐 아니라 이 특허청구범위와 균등하거나 등가적 변형이 있는 모든 기술 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.As described above, the present invention has been described with specific details such as specific components and limited embodiments and drawings, but this is only provided to facilitate a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , those of ordinary skill in the field to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the spirit of the present invention should not be limited to the described embodiments, and the scope of the patent claims described later as well as all technical ideas that are equivalent or equivalent to the scope of this patent claim are included in the scope of the rights of the present invention. It should be interpreted as

Claims (12)

  1. 실린더부 및 상기 실린더부의 단부의 돔부를 포함하는 수소저장용기 바디; 및A hydrogen storage container body including a cylinder portion and a dome portion at an end of the cylinder portion; and
    상기 바디의 상기 돔부 또는 상기 실린더부 중 최소한 일부에 적층된 내화재 필름을 포함하는 수소저장용기.A hydrogen storage container comprising a refractory material film laminated on at least a portion of the dome portion or the cylinder portion of the body.
  2. 제1항에 있어서,According to paragraph 1,
    상기 내화재 필름은 상기 바디와 접착을 위한 접착제층을 포함하는 수소저장용기.The refractory film is a hydrogen storage container including an adhesive layer for adhesion to the body.
  3. 제1항에 있어서,According to paragraph 1,
    상기 돔부는, 상기 실린더부의 일측 단부의 제1 돔부 및 상기 실린더부의 타측 단부의 제2 돔부를 포함하고, The dome portion includes a first dome portion at one end of the cylinder portion and a second dome portion at the other end of the cylinder portion,
    상기 제1 돔부 및 상기 제2 돔부에 돔형 내화재 필름을 재단하여 부착한 수소저장용기.A hydrogen storage container in which a dome-shaped fireproof material film is cut and attached to the first dome portion and the second dome portion.
  4. 제3항에 있어서,According to paragraph 3,
    상기 실린더부에 평면형 내화재 필름을 재단하여 부착한 수소저장용기.A hydrogen storage container in which a flat refractory film is cut and attached to the cylinder part.
  5. 제1항에 있어서,According to paragraph 1,
    상기 내화재 필름은, The fireproof film is,
    불용성 내화재, 휘발성 유기용매, 유기 중합체 및 레진의 혼합물을 시트 형태로 성형하고 경화한 내화재 시트의 한쪽면에 접착제층을 형성한 것인 수소저장용기.A hydrogen storage container in which a mixture of an insoluble refractory material, a volatile organic solvent, an organic polymer, and a resin is molded into a sheet and an adhesive layer is formed on one side of the cured refractory sheet.
  6. 제5항에 있어서,According to clause 5,
    상기 혼합물은, 상기 불용성 내화재는 30~70 중량%, 상기 휘발성 유기용매 10~50 중량%, 상기 유기 중합체는 10~50 중량% 및 상기 레진 10~30 중량%를 포함하는 수소저장용기.The mixture includes 30 to 70% by weight of the insoluble refractory material, 10 to 50% by weight of the volatile organic solvent, 10 to 50% by weight of the organic polymer, and 10 to 30% by weight of the resin.
  7. 제5항에 있어서,According to clause 5,
    상기 불용성 내화재는, 규산나트륨, MCA(Melamine Cyanurate), 수산화알루미늄, 염화파라핀, DBDPE(Decabromodiphenyl Ethane), TBBA(Tetraromobisphenol A), TCPP((Tris-chloroisopropyl)phosphate), TEP(Triethyl Phosphate), TBP(Tributyl phosphate), Graphite 중 어느 하나 이상을 포함하는 수소저장용기.The insoluble refractory materials include sodium silicate, MCA (Melamine Cyanurate), aluminum hydroxide, chlorinated paraffin, DBDPE (Decabromodiphenyl Ethane), TBBA (Tetraromobisphenol A), TCPP ((Tris-chloroisopropyl)phosphate), TEP (Triethyl Phosphate), TBP ( A hydrogen storage container containing one or more of Tributyl phosphate) and Graphite.
  8. 제5항에 있어서,According to clause 5,
    상기 휘발성 유기용매는, 톨루엔, NMP(1-methyl-2-pyrrolidone) 중 하나 이상을 포함하는 수소저장용기.The volatile organic solvent is a hydrogen storage container containing at least one of toluene and NMP (1-methyl-2-pyrrolidone).
  9. 제5항에 있어서,According to clause 5,
    상기 유기 중합체는, Styrene, Acrylic Acid, Acrylate 중 하나 이상을 포함하는 수소저장용기.The organic polymer is a hydrogen storage container containing one or more of Styrene, Acrylic Acid, and Acrylate.
  10. 제5항에 있어서,According to clause 5,
    상기 레진은, PVC(Polyvinyl Chloride), 에폭시 수지, Butyl계 Resin 중 하나 이상을 포함하는 수소저장용기.The resin is a hydrogen storage container containing one or more of PVC (Polyvinyl Chloride), epoxy resin, and butyl-based resin.
  11. 제5항에 있어서,According to clause 5,
    상기 접착제층은, 에폭시 수지, 아크릴 수지, 우레탄 수지 중 하나 이상을 포함하는 수소저장용기.The adhesive layer is a hydrogen storage container containing one or more of epoxy resin, acrylic resin, and urethane resin.
  12. 수소저장용기의 제조 공정에 있어서,In the manufacturing process of a hydrogen storage container,
    내화재 필름을 재단하는 단계; 및Cutting the fireproof film; and
    재단된 상기 내화재 필름을 상기 수소저장용기 바디의 돔부 또는 실린더부 중 최소한 일부에 적층하는 단계Laminating the cut refractory film on at least a portion of the dome or cylinder portion of the hydrogen storage container body.
    를 포함하는 수소저장용기의 제조 공정.Manufacturing process of a hydrogen storage container including.
PCT/KR2023/002694 2022-06-15 2023-02-27 Hydrogen storage container laminated by fireproof film and manufacturing process thereof WO2023243807A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003064261A (en) * 2001-08-27 2003-03-05 Kanegafuchi Chem Ind Co Ltd Foamable fireproof composition excellent in fire resistance, foamable fireproof sheet-form molding, and foamable fireproof sheet laminate
US20150102043A1 (en) * 2011-12-05 2015-04-16 Francesco Nettis Fire resistant pressure vessel
KR20190033676A (en) * 2017-09-21 2019-04-01 주식회사 동희산업 High pressure vessel and manufacturing method of the same
JP2022033116A (en) * 2020-06-01 2022-02-28 積水化学工業株式会社 Fire-resistant resin composition, fire-resistant sheet and fitting
JP2022071377A (en) * 2020-10-28 2022-05-16 三菱製紙株式会社 Fireproof sheet for backing wallpaper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003064261A (en) * 2001-08-27 2003-03-05 Kanegafuchi Chem Ind Co Ltd Foamable fireproof composition excellent in fire resistance, foamable fireproof sheet-form molding, and foamable fireproof sheet laminate
US20150102043A1 (en) * 2011-12-05 2015-04-16 Francesco Nettis Fire resistant pressure vessel
KR20190033676A (en) * 2017-09-21 2019-04-01 주식회사 동희산업 High pressure vessel and manufacturing method of the same
JP2022033116A (en) * 2020-06-01 2022-02-28 積水化学工業株式会社 Fire-resistant resin composition, fire-resistant sheet and fitting
JP2022071377A (en) * 2020-10-28 2022-05-16 三菱製紙株式会社 Fireproof sheet for backing wallpaper

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