WO2023058912A1 - Airtight structure of high-pressure fluid control valve - Google Patents

Airtight structure of high-pressure fluid control valve Download PDF

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Publication number
WO2023058912A1
WO2023058912A1 PCT/KR2022/013157 KR2022013157W WO2023058912A1 WO 2023058912 A1 WO2023058912 A1 WO 2023058912A1 KR 2022013157 W KR2022013157 W KR 2022013157W WO 2023058912 A1 WO2023058912 A1 WO 2023058912A1
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WO
WIPO (PCT)
Prior art keywords
protrusion
unit
stepped portion
valve body
component unit
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Application number
PCT/KR2022/013157
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French (fr)
Korean (ko)
Inventor
신진오
남우철
Original Assignee
영도산업 주식회사
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Publication of WO2023058912A1 publication Critical patent/WO2023058912A1/en

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Classifications

    • 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
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00—Details relating to contact between valve members and seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/005—Particular materials for seats or closure elements
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F17C2205/0385—Constructional details of valves, regulators in blocks or units
    • 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
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • 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
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0184—Fuel cells
    • 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 is a high-pressure fluid control valve that controls the flow of fluid when filling a high-pressure container in which high-pressure fluid is stored or supplying the fluid to a fluid use unit, and improving the airtight structure between the valve body and various parts units mounted on the valve body. It relates to an airtight structure of a high-pressure fluid control valve that prevents fluid leakage.
  • the present invention is a high-pressure fluid control valve that controls the flow of fluid when filling a high-pressure container in which high-pressure fluid is stored or supplying the fluid to a fluid use unit, and improving the airtight structure between the valve body and various parts units mounted on the valve body. It relates to an airtight structure of a high-pressure fluid control valve that prevents fluid leakage.
  • an object of the present invention is to provide an airtight structure of a high-pressure fluid control valve capable of preventing gas leakage by improving the airtight structure between a component unit mounted on a valve body in a screw-fitting manner.
  • the airtight structure of the present invention is a first step portion formed in a direction perpendicular to the insertion direction of the component unit on the component mounting portion of the valve body, and facing the first step portion on the outer surface of the component unit. It includes a second step portion formed and an airtight unit disposed between the second step portion and the second step portion to maintain airtightness between the valve body and the component unit, wherein the airtight unit ends on the upper surface of the first step portion.
  • the upper protrusion includes a sealing member digging into.
  • valve body and the component unit are mutually screwed so that the component unit is fixed to the component mounting portion of the valve body, the valve body and the component unit are formed of a metal material, and the sealing member may be formed of a resin material.
  • the lower protrusion and the upper protrusion have a triangular cross section and may be disposed on a straight line in a direction in which the part unit is inserted.
  • the lower protrusion may include a first protrusion and a second protrusion formed at a predetermined interval on the first stepped portion, and the upper protrusion may be disposed between the first protrusion and the second protrusion.
  • a plurality of lower protrusions may be formed on the upper surface of the first stepped portion at regular intervals, and a plurality of upper protrusions may be formed on the upper surface of the second stepped portion at regular intervals.
  • the airtight structure of the present invention forms a lower protrusion on the first step of the valve body and forms an upper protrusion on the second step of the component unit, so that the upper and lower protrusions penetrate the sealing member and are fixed. This can improve confidentiality.
  • FIG. 1 is a cross-sectional view of a valve assembly for a high-pressure container according to a first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of an airtight unit according to a first embodiment of the present invention.
  • FIG 3 is an enlarged cross-sectional view of an airtight unit according to a first embodiment of the present invention.
  • FIG 4 is an operating state diagram of the hermetic unit according to the first embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of an airtight unit according to a second embodiment of the present invention.
  • FIG. 6 is a cross-sectional view of an airtight unit according to a third embodiment of the present invention.
  • FIG. 1 is a block diagram of a valve assembly for a high-pressure vessel according to a first embodiment of the present invention.
  • a valve assembly for a high-pressure vessel includes a valve body 10 installed in a high-pressure vessel in which raw material gas is stored, a valve mounted on the valve body 10 to open and close a flow path, a safety-related valve, and a raw material gas It includes a component unit 20 including pipes entering and exiting.
  • the component unit 20 includes a manual valve 12 that manually opens and closes the passage through which raw material gas passes, a solenoid valve 14 mounted on the valve body 10 and automatically opening and closing the passage according to an electrical signal,
  • the overcurrent cut-off valve 16 prevents the raw material gas from flowing out abnormally and excessively inside the high-pressure container, and in the event of a fire due to a vehicle accident, the pressure in the high-pressure container When it rises, it includes a pressure release device 18 that releases the raw material gas to the outside.
  • valve body 10 is connected to an outlet pipe 22 through which the raw material gas passes through an external raw material gas line, and a filling material gas passing when the raw material gas passes when the raw material gas is inserted and disposed in the high-pressure container and filled into the high-pressure container.
  • a pipe 24 and a use pipe 26 through which the raw material gas passes when using the raw material gas stored in the high-pressure container are mounted, respectively.
  • the valve body 10 is formed with a component mounting portion 30 to which the component unit 20 is mounted, and the component unit 20 is mounted to the component mounting portion 30 by screwing. That is, a female screw portion 32 is formed on the inner surface of the component mounting portion 30 of the valve body 10, and a male screw portion 34 is formed on the outer surface of the component unit 20 to mount the component unit 20 on the component mounting portion ( 30), the component unit 20 is mounted on the valve body 10 when screwed together.
  • valve body 10 and the housing of the component unit 20 are made of metal.
  • the valve body 10 is made of aluminum alloy and the housing of the component unit 20 is made of stainless steel.
  • a first stepped portion 42 is formed on the inner surface of the component mounting portion 30 in the circumferential direction, and a second stepped portion 44 facing the first stepped portion 42 is formed on the outer surface of the component unit 20 . That is, the first step portion 42 is formed horizontally in a direction perpendicular to the direction in which the component unit 20 is inserted, and the second step portion 44 also contacts the first step portion 42 so that the component unit ( 20) is formed horizontally in a direction perpendicular to the insertion direction.
  • the male screw part 34 of the part unit 20 is coupled to the female screw part 32 of the part mounting part 30 and inserted into the screwing method, the first step part 42 and the second step part 44 The gap between them gets narrower.
  • the first step portion 42 has an upper surface formed on the inner surface of the component mounting portion 30 in a flat shape
  • the second step portion 44 has a lower surface formed on the component unit 20 in a flat shape to form a component unit ( 20) to the component mounting portion 30, they can come into contact with each other.
  • An airtight unit 50 for maintaining airtightness between the component mounting portion 30 and the component unit 20 is formed between the first step portion 42 and the second step portion 44 .
  • the airtight unit 50 has a lower protrusion 52 protruding in a sharp end on the upper surface of the first stepped portion 42 and a lower surface of the second stepped portion 44.
  • An upper protrusion 54 whose end protrudes in a pointed form and is inserted and disposed between the first step 42 and the second step 44, and the lower protrusion 52 and the upper protrusion 54 penetrate into it.
  • a sealing member 56 is included.
  • the lower protrusion 52 and the upper protrusion 54 are disposed to face each other and protrude in the circumferential direction of the first step portion 42 and the second step portion 44 .
  • the lower protrusion 52 and the upper protrusion 54 may have a triangular cross section.
  • the sealing member 56 has a rectangular cross-section and is formed of a resin material having strength that allows the lower protrusion 52 and the upper protrusion 54, which are made of metal, to penetrate, and in particular, may be formed of polyimide (PI) material. there is. That is, the sealing member 56 is in close contact between the first stepped portion 42 and the second stepped portion 44 and has sufficient strength to perform a sealing action, and the lower protrusion 52 and the upper protrusion 54 It is made of a material that can be penetrated.
  • PI polyimide
  • the sealing member 56 is inserted between the first step portion 42 and the second step portion 44 and the component unit 20 is inserted into the component mounting portion 30.
  • the component unit 20 moves forward, and the male screw portion 34 formed on the outer surface of the component unit 20 is screwed into the female screw portion 32 formed on the inner surface of the component mounting portion 30.
  • the sealing unit 56 is formed on the first stepped portion 42 and the second stepped portion 42. It is compressed between the stepped portions 44, so that between the component mounting portion 30 and the component unit 20 is sealed reliably.
  • the lower protrusion 52 penetrates into the lower surface of the sealing unit 56 and is compressed so that the airtightness between the first stepped portion 42 and the lower surface of the sealing unit 56 is maintained, and the upper protrusion 54 As it penetrates into the upper surface of the sealing unit 56 and is compressed, the airtightness between the second step 44 and the upper surface of the sealing unit 56 is maintained. Durability for maintenance can be improved.
  • the airtight unit 60 is formed in a pointed shape on the upper surface of the first step portion 42 and is spaced apart from the first step portion 42 at regular intervals.
  • a pair of lower protrusions 62 and 64 and one upper protrusion 66 disposed between the lower protrusions 62 and 64 and having a pointed end on the lower surface of the second stepped portion 44 and a sealing member 56 inserted between the first stepped portion 42 and the second stepped portion 44 and penetrated into the lower protrusions 62 and 64 and the upper protrusion 66.
  • the lower protrusions 62 and 64 are composed of a first protrusion 62 and a second protrusion 64 respectively formed on both edges of the first stepped portion 42, and the upper protrusion 66 is the first protrusion 62 ) and the second protrusion 64.
  • the airtight unit 60 has a pair of lower protrusions 62 and 64 to maintain a more stable posture when digging into the lower surface of the sealing member 56 to keep the digging in position constant. It can be maintained, and it is possible to minimize the risk of deformation of the sealing member 56 because the positions of the upper protrusion and the lower protrusion are different from each other.
  • the airtight unit 70 is formed in a pointed shape on the upper surface of the first step portion 42 and is spaced apart from the first step portion 42 at regular intervals.
  • a plurality of lower protrusions and upper protrusions are formed to improve airtightness.
  • valve device for controlling high-pressure fluid in a high-pressure container in which high-pressure fluid is stored, it can be usefully applied to improve the airtight structure between the valve body and various parts units mounted on the valve body.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Housings (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The present invention comprises: a first stepped part formed, in the perpendicular direction with respect to the insertion direction of a component unit, in a component mounting part of a valve body; a second stepped part formed at the outer surface of the component unit so as to face the first stepped part; and an airtight unit disposed between the second stepped part and the second stepped part so as to maintain airtightness between the valve body and the component unit. The airtight unit includes: a lower protrusion part protruding from the upper surface of the first stepped part in a shape in which the tip portion thereof is pointed; an upper protrusion part protruding from the lower surface of the second stepped part in a shape in which the tip portion thereof is pointed; and a sealing member, which is inserted and disposed between the first stepped part and the second stepped part and into which the lower protrusion part and the upper protrusion part penetrate, and thus airtightness is improved.

Description

고압유체 제어밸브의 기밀구조Airtight structure of high-pressure fluid control valve
본 발명은 고압의 유체가 저장되는 고압용기에 유체를 충전하거나 유체 사용부로 공급할 때 유체의 흐름을 제어하는 고압유체 제어밸브로서, 밸브 바디와 밸브 바디에 장착되는 각종 부품유닛 사이의 기밀구조를 개선하여 유체의 누설을 방지하는 고압유체 제어밸브의 기밀구조에 관한 것이다. The present invention is a high-pressure fluid control valve that controls the flow of fluid when filling a high-pressure container in which high-pressure fluid is stored or supplying the fluid to a fluid use unit, and improving the airtight structure between the valve body and various parts units mounted on the valve body. It relates to an airtight structure of a high-pressure fluid control valve that prevents fluid leakage.
본 발명은 고압의 유체가 저장되는 고압용기에 유체를 충전하거나 유체 사용부로 공급할 때 유체의 흐름을 제어하는 고압유체 제어밸브로서, 밸브 바디와 밸브 바디에 장착되는 각종 부품유닛 사이의 기밀구조를 개선하여 유체의 누설을 방지하는 고압유체 제어밸브의 기밀구조에 관한 것이다. The present invention is a high-pressure fluid control valve that controls the flow of fluid when filling a high-pressure container in which high-pressure fluid is stored or supplying the fluid to a fluid use unit, and improving the airtight structure between the valve body and various parts units mounted on the valve body. It relates to an airtight structure of a high-pressure fluid control valve that prevents fluid leakage.
따라서, 본 발명의 목적은 밸브 바디에 나사결합 방식으로 장착되는 부품유닛과의 사이의 기밀구조를 개선하여 가스 누설을 방지할 수 있는 고압유체 제어밸브의 기밀구조를 제공하는 것이다. Accordingly, an object of the present invention is to provide an airtight structure of a high-pressure fluid control valve capable of preventing gas leakage by improving the airtight structure between a component unit mounted on a valve body in a screw-fitting manner.
상기 목적을 달성하기 위하여, 본 발명의 기밀구조는 밸브 바디의 부품 장착부에 부품유닛의 삽입 방향에 대해 직각방향으로 형성되는 제1단차부와, 부품유닛의 외면에 상기 제1단차부와 마주보게 형성되는 제2단차부와, 제2단차부와 제2단차부 사이에 배치되어 밸브 바디와 부품 유닛 사이의 기밀을 유지하는 기밀유닛을 포함하고, 상기 기밀유닛은 상기 제1단차부의 상면에 끝부분이 뾰족한 형태로 돌출되는 하부 돌기부와, 상기 제2단차부의 하면에 끝부분이 뾰족한 형태로 돌출되는 상부 돌기부와, 상기 제1단차부와 제2단차부 사이에 삽입되어 배치되고 상기 하부 돌기부와 상부 돌기부가 파고 들어가는 실링부재를 포함한다.In order to achieve the above object, the airtight structure of the present invention is a first step portion formed in a direction perpendicular to the insertion direction of the component unit on the component mounting portion of the valve body, and facing the first step portion on the outer surface of the component unit. It includes a second step portion formed and an airtight unit disposed between the second step portion and the second step portion to maintain airtightness between the valve body and the component unit, wherein the airtight unit ends on the upper surface of the first step portion. A lower protrusion protruding in a pointed form, an upper protrusion protruding in a pointed form on the lower surface of the second step portion, and inserted between the first step portion and the second step portion, and disposed between the lower protrusion and The upper protrusion includes a sealing member digging into.
상기 밸브 바디와 부품유닛은 상호 나사결합되어 부품유닛이 상기 밸브 바디의 부품 장착부에 고정되고 상기 밸브 바디와 부품유닛은 금속 재질로 형성되고, 상기 실링부재는 수지재질로 형성될 수 있다.The valve body and the component unit are mutually screwed so that the component unit is fixed to the component mounting portion of the valve body, the valve body and the component unit are formed of a metal material, and the sealing member may be formed of a resin material.
상기 하부 돌기부와 상부 돌기부는 그 단면이 삼각형 형상이고, 상기 부품유닛이 삽입되는 방향으로 일직선상에 배치될 수 있다.The lower protrusion and the upper protrusion have a triangular cross section and may be disposed on a straight line in a direction in which the part unit is inserted.
상기 하부 돌기부는 상기 제1단차부에 일정 간격을 두고 형성되는 제1돌기부 및 제2돌기부를 포함하고, 상기 상부 돌기부는 제1돌기부와 제2돌기부 사이에 배치될 수 있다.The lower protrusion may include a first protrusion and a second protrusion formed at a predetermined interval on the first stepped portion, and the upper protrusion may be disposed between the first protrusion and the second protrusion.
상기 하부 돌기부는 상기 제1단차부의 상면에 일정 간격으로 복수로 형성되고, 상기 상부 돌기부는 상기 제2단차부의 상면에 일정 간격으로 복수로 형성될 수 있다. A plurality of lower protrusions may be formed on the upper surface of the first stepped portion at regular intervals, and a plurality of upper protrusions may be formed on the upper surface of the second stepped portion at regular intervals.
상기한 바와 같이, 본 발명의 기밀구조는 밸브 바디의 제1단차부에 하부 돌기부를 형성하고, 부품유닛의 제2단차부에 상부 돌기부를 형성하여 상부 돌기부와 하부 돌기부가 실링부재를 파고 들어가 고정되어 기밀성능을 향상시킬 수 있다. As described above, the airtight structure of the present invention forms a lower protrusion on the first step of the valve body and forms an upper protrusion on the second step of the component unit, so that the upper and lower protrusions penetrate the sealing member and are fixed. This can improve confidentiality.
도 1은 본 발명의 제1실시예에 따른 고압용기용 밸브 어셈블리의 단면도이다. 1 is a cross-sectional view of a valve assembly for a high-pressure container according to a first embodiment of the present invention.
도 2는 본 발명의 제1실시예에 따른 기밀유닛의 단면도이다. 2 is a cross-sectional view of an airtight unit according to a first embodiment of the present invention.
도 3은 본 발명의 제1실시예에 따른 기밀유닛의 확대 단면도이다. 3 is an enlarged cross-sectional view of an airtight unit according to a first embodiment of the present invention.
도 4는 본 발명의 제1실시예에 따른 기밀유닛의 작동 상태도이다.4 is an operating state diagram of the hermetic unit according to the first embodiment of the present invention.
도 5는 본 발명의 제2실시예에 따른 기밀유닛의 단면도이다.5 is a cross-sectional view of an airtight unit according to a second embodiment of the present invention.
도 6은 본 발명의 제3실시예에 따른 기밀유닛의 단면도이다. 6 is a cross-sectional view of an airtight unit according to a third embodiment of the present invention.
이하, 첨부된 도면들을 참조하여 본 발명에 따른 실시예를 상세히 설명한다. 이 과정에서 도면에 도시된 구성요소의 크기나 형상 등은 설명의 명료성과 편의상 과장되게 도시될 수 있다. 또한, 본 발명의 구성 및 작용을 고려하여 특별히 정의된 용어들은 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 한다. Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In this process, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms specifically defined in consideration of the configuration and operation of the present invention may vary according to the intention or practice of users or operators. Definitions of these terms should be made based on the content throughout this specification.
도 1은 본 발명의 제1실시예에 따른 고압용기용 밸브 어셈블리의 구성도이다. 1 is a block diagram of a valve assembly for a high-pressure vessel according to a first embodiment of the present invention.
제1실시예에 따른 고압용기용 밸브 어셈블리는 원료가스가 저장되는 고압용기에 장착되는 밸브 바디(10)와, 밸브 바디(10)에 장착되어 유로를 개폐하는 밸브, 안전 관련 밸브 및 원료가스가 출입하는 파이프류를 포함하는 부품유닛(20)을 포함한다. A valve assembly for a high-pressure vessel according to the first embodiment includes a valve body 10 installed in a high-pressure vessel in which raw material gas is stored, a valve mounted on the valve body 10 to open and close a flow path, a safety-related valve, and a raw material gas It includes a component unit 20 including pipes entering and exiting.
부품유닛(20)은 수동으로 원료가스가 통과하는 유로를 개폐하는 메뉴얼 밸브(12)와, 밸브 바디(10)에 장착되어 전기적인 신호에 따라 유로를 자동으로 개폐하는 솔레노이드 밸브(14)와, 차량 사고나 전복시 차량의 배관이 끊어질 경우 고압용기 내부의 원료가스가 비정상적으로 과다하게 유출되는 것을 방지하는 과류차단밸브(16)와, 차량 사고 등으로 화재 발생시 온도에 의해 고압용기 내의 압력이 상승하면 원료가스를 외부로 방출해주는 압력해제장치(18)를 포함한다.The component unit 20 includes a manual valve 12 that manually opens and closes the passage through which raw material gas passes, a solenoid valve 14 mounted on the valve body 10 and automatically opening and closing the passage according to an electrical signal, In the event of a vehicle accident or overturning, when the vehicle's pipe is cut off, the overcurrent cut-off valve 16 prevents the raw material gas from flowing out abnormally and excessively inside the high-pressure container, and in the event of a fire due to a vehicle accident, the pressure in the high-pressure container When it rises, it includes a pressure release device 18 that releases the raw material gas to the outside.
그리고 밸브 바디(10)에는 외부의 원료가스 라인이 연결되어 원료가스가 통과하는 아웃렛 파이프(22)와, 고압용기에 삽입되어 배치되고 고압용기 내부로 원료가스를 충전할 때 원료가스가 통과하는 충전 파이프(24)와, 고압용기에 저장된 원료가스를 사용할 때 원료가스가 통과하는 사용 파이프(26)가 각각 장착된다. In addition, the valve body 10 is connected to an outlet pipe 22 through which the raw material gas passes through an external raw material gas line, and a filling material gas passing when the raw material gas passes when the raw material gas is inserted and disposed in the high-pressure container and filled into the high-pressure container. A pipe 24 and a use pipe 26 through which the raw material gas passes when using the raw material gas stored in the high-pressure container are mounted, respectively.
밸브 바디(10)에는 도 2에 도시된 바와 같이, 부품유닛(20)이 장착되는 부품 장착부(30)가 형성되고, 부품유닛(20)은 부품 장착부(30)에 나사결합 방식으로 장착된다. 즉, 밸브 바디(10)의 부품 장착부(30)의 내면에는 암나사부(32)가 형성되고, 부품유닛(20)의 외면에는 수나사부(34)가 형성되어 부품유닛(20)을 부품 장착부(30)에 삽입 후 나사결합하면 부품유닛(20)이 밸브 바디(10)에 장착된다. As shown in FIG. 2 , the valve body 10 is formed with a component mounting portion 30 to which the component unit 20 is mounted, and the component unit 20 is mounted to the component mounting portion 30 by screwing. That is, a female screw portion 32 is formed on the inner surface of the component mounting portion 30 of the valve body 10, and a male screw portion 34 is formed on the outer surface of the component unit 20 to mount the component unit 20 on the component mounting portion ( 30), the component unit 20 is mounted on the valve body 10 when screwed together.
밸브 바디(10)와 부품유닛(20)의 하우징은 금속 재질로 형성되고 특히, 밸브 바디(10)는 알루미늄 합금으로 형성되고 부품유닛(20)의 하우징은 스테인레스 스틸 재질로 형성된다. The valve body 10 and the housing of the component unit 20 are made of metal. In particular, the valve body 10 is made of aluminum alloy and the housing of the component unit 20 is made of stainless steel.
부품 장착부(30)의 내면에는 원주방향으로 제1단차부(42)가 형성되고, 부품유닛(20)의 외면에는 제1단차부(42)와 마주보는 2단차부(44)가 형성된다. 즉, 제1단차부(42)는 부품유닛(20)이 삽입되는 방향에 대해 직각방향으로 수평하게 형성되고, 제2단차부(44) 역시 제1단차부(42)와 접촉하도록 부품유닛(20)의 삽입 방향에 대해 직각방향으로 수평으로 형성된다.A first stepped portion 42 is formed on the inner surface of the component mounting portion 30 in the circumferential direction, and a second stepped portion 44 facing the first stepped portion 42 is formed on the outer surface of the component unit 20 . That is, the first step portion 42 is formed horizontally in a direction perpendicular to the direction in which the component unit 20 is inserted, and the second step portion 44 also contacts the first step portion 42 so that the component unit ( 20) is formed horizontally in a direction perpendicular to the insertion direction.
이에 따라 부품 장착부(30)의 암나사부(32)에 부품유닛(20)의 수나사부(34)를 나사결합 방식으로 결합하여 삽입하면, 제1단차부(42)와 제2단차부(44) 사이의 간격은 좁아지게 된다. Accordingly, when the male screw part 34 of the part unit 20 is coupled to the female screw part 32 of the part mounting part 30 and inserted into the screwing method, the first step part 42 and the second step part 44 The gap between them gets narrower.
즉, 제1단차부(42)는 부품 장착부(30)의 내면에 상면이 평면 형태로 형성되고, 제2단차부(44)는 부품유닛(20)에 하면이 평면 형태로 형성되어 부품유닛(20)을 부품 장착부(30)에 결합하면 상호 접촉될 수 있다. That is, the first step portion 42 has an upper surface formed on the inner surface of the component mounting portion 30 in a flat shape, and the second step portion 44 has a lower surface formed on the component unit 20 in a flat shape to form a component unit ( 20) to the component mounting portion 30, they can come into contact with each other.
제1단차부(42)와 제2단차부(44) 사이에는 부품 장착부(30)와 부품유닛(20) 사이의 기밀을 유지하기 위한 기밀유닛(50)이 형성된다. An airtight unit 50 for maintaining airtightness between the component mounting portion 30 and the component unit 20 is formed between the first step portion 42 and the second step portion 44 .
상기 기밀유닛(50)은 도 3에 도시된 바와 같이, 제1단차부(42)의 상면에 끝부분이 뾰족한 형태로 돌출되는 하부 돌기부(52)와, 제2단차부(44)의 하면에 끝부분이 뾰족한 형태로 돌출되는 상부 돌기부(54)와, 제1단차부(42)와 제2단차부(44) 사이에 삽입되어 배치되고 하부 돌기부(52)와 상부 돌기부(54)가 파고 들어가는 실링부재(56)를 포함한다. As shown in FIG. 3, the airtight unit 50 has a lower protrusion 52 protruding in a sharp end on the upper surface of the first stepped portion 42 and a lower surface of the second stepped portion 44. An upper protrusion 54 whose end protrudes in a pointed form and is inserted and disposed between the first step 42 and the second step 44, and the lower protrusion 52 and the upper protrusion 54 penetrate into it. A sealing member 56 is included.
하부 돌기부(52) 및 상부 돌기부(54)는 서로 마주보게 배치되고, 제1단차부(42)와 제2단차부(44)의 원주방향으로 돌출 형성된다. 하부 돌기부(52) 및 상부 돌기부(54)는 그 단면이 삼각형 형상일 수 있다. The lower protrusion 52 and the upper protrusion 54 are disposed to face each other and protrude in the circumferential direction of the first step portion 42 and the second step portion 44 . The lower protrusion 52 and the upper protrusion 54 may have a triangular cross section.
실링부재(56)는 그 단면이 사각형상이고 금속재질인 하부 돌기부 (52) 및 상부 돌기부(54)가 파고 들어갈 수 있는 강도를 갖는 수지재질로 형성되며, 특히 폴리이미드(PI) 재질로 형성될 수 있다. 즉, 실링부재(56)는 제1단차부(42)와 제2단차부(44) 사이에 밀착되어 실링작용을 수행할 수 있는 충분한 강도를 가지면서 하부 돌기부(52) 및 상부 돌기부(54)가 파고 들어갈 수 있는 재질로 형성된다. The sealing member 56 has a rectangular cross-section and is formed of a resin material having strength that allows the lower protrusion 52 and the upper protrusion 54, which are made of metal, to penetrate, and in particular, may be formed of polyimide (PI) material. there is. That is, the sealing member 56 is in close contact between the first stepped portion 42 and the second stepped portion 44 and has sufficient strength to perform a sealing action, and the lower protrusion 52 and the upper protrusion 54 It is made of a material that can be penetrated.
이와 같이 구성되는 실링유닛(50)은 제1단차부(42)와 제2단차부(44) 사이에 실링부재(56)를 삽입하고 부품유닛(20)을 부품 장착부(30)에 삽입한 후 결합하면 부품유닛(20)이 전진하여 부품유닛(20)의 외면에 형성되는 수나사부(34)가 부품 장착부(30)의 내면에 형성되는 암나사부(32)에 나사결합된다. In the sealing unit 50 configured as described above, the sealing member 56 is inserted between the first step portion 42 and the second step portion 44 and the component unit 20 is inserted into the component mounting portion 30. When coupled, the component unit 20 moves forward, and the male screw portion 34 formed on the outer surface of the component unit 20 is screwed into the female screw portion 32 formed on the inner surface of the component mounting portion 30.
그리고 부품유닛(20)이 더욱 전진하게 되면 도 4에 도시된 바와 같이, 부품 장착부(30)의 제1단차부(42)에 형성되는 하부 돌기부(52)가 실링유닛(56)의 하면을 파고 들어가고, 부품유닛(20)의 제2단차부(44)에 형성되는 상부 돌기부(54)가 실링유닛(56)의 상면을 파고 들어가면서 실링유닛(56)은 제1단차부(42)와 제2단차부(44) 사이에 압착되어 부품 장착부(30)와 부품유닛(20) 사이는 확실하게 실링된다. And when the component unit 20 moves forward further, as shown in FIG. 4, the lower protrusion 52 formed on the first stepped portion 42 of the component mounting portion 30 digs into the lower surface of the sealing unit 56. As the upper protrusion 54 formed on the second stepped portion 44 of the component unit 20 digs into the upper surface of the sealing unit 56, the sealing unit 56 is formed on the first stepped portion 42 and the second stepped portion 42. It is compressed between the stepped portions 44, so that between the component mounting portion 30 and the component unit 20 is sealed reliably.
즉, 하부 돌기부(52)가 실링유닛(56)의 하면에 파고 들어가 압착된 상태로 되어 제1단차부(42)와 실링유닛(56)의 하면 사이의 기밀이 유지되고, 상부 돌기부(54)가 실링유닛(56)의 상면에 파고 들어가 압착된 상태로 되어 제2단차부(44)와 실링유닛(56)의 상면 사이의 기밀이 유지되는 것으로서, 시간이 경과하더라도 압착된 상태가 유지되어 기밀 유지에 대한 내구성이 향상될 수 있다. That is, the lower protrusion 52 penetrates into the lower surface of the sealing unit 56 and is compressed so that the airtightness between the first stepped portion 42 and the lower surface of the sealing unit 56 is maintained, and the upper protrusion 54 As it penetrates into the upper surface of the sealing unit 56 and is compressed, the airtightness between the second step 44 and the upper surface of the sealing unit 56 is maintained. Durability for maintenance can be improved.
제2실시예에 따른 기밀유닛(60)은 도 5에 도시된 바와 같이, 제1단차부(42)의 상면에 끝부분이 뾰족한 형태로 형성되고 제1단차부(42)에 일정 간격을 두고 형성되는 한 쌍의 하부 돌기부(62,64)와, 제2단차부(44)의 하면에 끝부분이 뾰족한 형태로 형성되고 하부 돌기부(62,64) 사이에 배치되는 하나의 상부 돌기부(66)와, 제1단차부(42)와 제2단차부(44) 사이에 삽입되어 배치되고 하부 돌기부(62,64)와 상부 돌기부(66)가 파고 들어가는 실링부재(56)를 포함한다. As shown in FIG. 5, the airtight unit 60 according to the second embodiment is formed in a pointed shape on the upper surface of the first step portion 42 and is spaced apart from the first step portion 42 at regular intervals. A pair of lower protrusions 62 and 64 and one upper protrusion 66 disposed between the lower protrusions 62 and 64 and having a pointed end on the lower surface of the second stepped portion 44 and a sealing member 56 inserted between the first stepped portion 42 and the second stepped portion 44 and penetrated into the lower protrusions 62 and 64 and the upper protrusion 66.
하부 돌기부(62,64)는 제1단차부(42)의 양쪽 가장자리에 각각 형성되는 제1돌기부(62) 및 제2돌기부(64)로 구성되고, 상부 돌기부(66)는 제1돌기부(62)와 제2돌기부(64) 사이에 위치된다. The lower protrusions 62 and 64 are composed of a first protrusion 62 and a second protrusion 64 respectively formed on both edges of the first stepped portion 42, and the upper protrusion 66 is the first protrusion 62 ) and the second protrusion 64.
이와 같은 제2실시예에 따른 기밀유닛(60)은 하부 돌기부(62,64)가 한 쌍으로 구성되어 실링부재(56)의 하면에 파고 들어갈 때 보다 안정적인 자세를 유지하여 파고 들어가는 위치를 일정하게 유지할 수 있고, 상부 돌기부와 하부 돌기부의 위치가 서로 달라 실링부재(56)가 변형될 우려를 최소화할 수 있다. The airtight unit 60 according to the second embodiment has a pair of lower protrusions 62 and 64 to maintain a more stable posture when digging into the lower surface of the sealing member 56 to keep the digging in position constant. It can be maintained, and it is possible to minimize the risk of deformation of the sealing member 56 because the positions of the upper protrusion and the lower protrusion are different from each other.
제3실시예에 따른 기밀유닛(70)은 도 6에 도시된 바와 같이, 제1단차부(42)의 상면에 끝부분이 뾰족한 형태로 형성되고 제1단차부(42)에 일정 간격을 두고 형성되는 복수의 하부 돌기부(72,74)와, 제2단차부(44)의 하면에 끝부분이 뾰족한 형태로 형성되는 복수의 상부 돌기부(76,78)와, 제1단차부(42)와 제2단차부(44) 사이에 삽입되어 배치되고 하부 돌기부(72,74)와 상부 돌기부(76,78)가 파고 들어가는 실링부재(56)를 포함한다. As shown in FIG. 6, the airtight unit 70 according to the third embodiment is formed in a pointed shape on the upper surface of the first step portion 42 and is spaced apart from the first step portion 42 at regular intervals. A plurality of lower protrusions 72 and 74 formed, a plurality of upper protrusions 76 and 78 formed in the form of sharp ends on the lower surface of the second stepped portion 44, and a first stepped portion 42; It includes a sealing member 56 inserted between the second stepped portions 44 and inserted into the lower protrusions 72 and 74 and the upper protrusions 76 and 78.
이와 같은 제3실시예에 따른 기밀유닛(70)은 하부 돌기부와 상부 돌기부가 복수로 형성되어 기밀성을 향상시킬 수 있다. In the airtight unit 70 according to the third embodiment, a plurality of lower protrusions and upper protrusions are formed to improve airtightness.
이상에서는 본 발명을 특정의 바람직한 실시예를 예를 들어 도시하고 설명하였으나, 본 발명은 상기한 실시예에 한정되지 아니하며 본 발명의 정신을 벗어나지 않는 범위 내에서 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변경과 수정이 가능할 것이다. In the above, the present invention has been shown and described as specific preferred embodiments, but the present invention is not limited to the above embodiments and is common knowledge in the art to which the present invention belongs within the scope of not departing from the spirit of the present invention. Various changes and modifications will be possible by those who have
고압유체가 저장되는 고압용기에서 고압유체를 제어하기 위한 밸브 장치에서 밸브 바디와 밸브 바디에 장착되는 각종 부품유닛 사이의 기밀구조를 개선하는데 유용하게 적용될 수 있다.In a valve device for controlling high-pressure fluid in a high-pressure container in which high-pressure fluid is stored, it can be usefully applied to improve the airtight structure between the valve body and various parts units mounted on the valve body.

Claims (6)

  1. 밸브 바디의 부품 장착부에 부품유닛의 삽입방향에 대해 직각방향으로 수평으로 형성되는 제1단차부와, 부품유닛의 외면에 상기 제1단차부와 마주보게 형성되는 제2단차부와, 상기 제1단차부와 제2단차부 사이에 배치되어 밸브 바디와 부품유닛 사이에 기밀을 유지하는 기밀유닛을 포함하고, A first stepped portion formed horizontally in a direction perpendicular to the insertion direction of the component unit on the component mounting portion of the valve body, a second stepped portion formed on the outer surface of the component unit to face the first stepped portion, and the first A confidential unit disposed between the stepped portion and the second stepped portion to maintain confidentiality between the valve body and the component unit,
    상기 기밀유닛은, The confidential unit,
    상기 제1단차부의 상면에 끝부분이 뾰족한 형태로 돌출되는 하부 돌기부; a lower protrusion protruding in a sharp end on the upper surface of the first stepped portion;
    상기 제2단차부의 하면에 끝부분이 뾰족한 형태로 돌출되는 상부 돌기부; 및 an upper protrusion protruding in a sharp end on the lower surface of the second stepped portion; and
    상기 제1단차부와 제2단차부 사이에 삽입되어 배치되고, 상기 하부 돌기부와 상부 돌기부가 파고 들어가는 실링부재;를 포함하는 고압유체 제어밸브의 기밀구조. The airtight structure of the high-pressure fluid control valve comprising: a sealing member inserted between the first step and the second step and inserted into the lower protrusion and the upper protrusion.
  2. 제1항에 있어서, According to claim 1,
    상기 밸브 바디와 부품유닛은 상호 나사결합되어 부품유닛이 상기 밸브 바디의 부품 장착부에 고정되며, The valve body and the parts unit are mutually screwed so that the parts unit is fixed to the parts mounting part of the valve body,
    상기 밸브 바디와 부품유닛은 금속 재질로 형성되고, 상기 실링부재는 수지재질로 형성되는 고압유체 제어밸브의 기밀구조. The airtight structure of the high-pressure fluid control valve wherein the valve body and the parts unit are formed of a metal material, and the sealing member is formed of a resin material.
  3. 제2항에 있어서, According to claim 2,
    상기 밸브 바디는 알루미늄 합금으로 형성되고, 상기 부품유닛의 하우징은 스테인레스 스틸 재질로 형성되며, 상기 실링부재는 폴리이미드(PI) 재질로 형성되는 고압유체 제어밸브의 기밀구조. The valve body is formed of an aluminum alloy, the housing of the component unit is formed of a stainless steel material, and the sealing member is formed of a polyimide (PI) material.
  4. 제1항에 있어서, According to claim 1,
    상기 하부 돌기부와 상부 돌기부는 그 단면이 삼각형 형상이고, 상기 부품유닛이 삽입되는 방향으로 일직선상에 배치되는 고압유체 제어밸브의 기밀구조. The lower projection and the upper projection have a triangular cross section and are arranged in a straight line in a direction in which the component unit is inserted.
  5. 제1항에 있어서, According to claim 1,
    상기 하부 돌기부는 상기 제1단차부에 일정 간격을 두고 형성되는 제1돌기부 및 제2돌기부를 포함하고, 상기 상부 돌기부는 상기 제1돌기부와 제2돌기부 사이에 배치되는 고압유체 제어밸브의 기밀구조. The lower protrusion includes a first protrusion and a second protrusion formed at a predetermined interval on the first stepped portion, and the upper protrusion is an airtight structure of a high-pressure fluid control valve disposed between the first protrusion and the second protrusion. .
  6. 제1항에 있어서, According to claim 1,
    상기 하부 돌기부는 상기 제1단차부의 상면에 일정 간격으로 복수로 형성되고, 상기 상부 돌기부는 상기 제2단차부의 상면에 일정 간격으로 복수로 형성되는 고압유체 제어밸브의 기밀구조.The lower protrusions are formed in plurality at regular intervals on the upper surface of the first stepped portion, and the upper protrusions are formed in plurality at regular intervals on the upper surface of the second stepped portion.
PCT/KR2022/013157 2021-10-07 2022-09-02 Airtight structure of high-pressure fluid control valve WO2023058912A1 (en)

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KR20190039301A (en) * 2016-10-31 2019-04-10 가부시키가이샤 후지킨 Sealing structure and sealing method and coupling having this sealing structure
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JP2021139388A (en) * 2020-03-03 2021-09-16 Nok株式会社 Valve seat

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KR101585562B1 (en) * 2013-02-18 2016-01-22 (주)로커스 A service valve assembly for air conditioner
KR101821597B1 (en) 2016-05-10 2018-01-26 영도산업 주식회사 Solenoid Valve for Fluid Control
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040124289A1 (en) * 2002-12-09 2004-07-01 Pacific Industrial Co., Ltd. Nozzle cap for sealing nozzle particularly used to charge with high pressurized fluid
JP2007327612A (en) * 2006-06-09 2007-12-20 Nok Corp Valve sealing structure
KR20190039301A (en) * 2016-10-31 2019-04-10 가부시키가이샤 후지킨 Sealing structure and sealing method and coupling having this sealing structure
KR20190126426A (en) * 2017-04-28 2019-11-11 가부시키가이샤 후지킨 Sensor-attached seams and monitoring system using them
JP2021139388A (en) * 2020-03-03 2021-09-16 Nok株式会社 Valve seat

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