KR102632818B1 - Pressure relief valve module apparatus for liquified hydrogen - Google Patents

Pressure relief valve module apparatus for liquified hydrogen Download PDF

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KR102632818B1
KR102632818B1 KR1020210162758A KR20210162758A KR102632818B1 KR 102632818 B1 KR102632818 B1 KR 102632818B1 KR 1020210162758 A KR1020210162758 A KR 1020210162758A KR 20210162758 A KR20210162758 A KR 20210162758A KR 102632818 B1 KR102632818 B1 KR 102632818B1
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South Korea
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housing
relief valve
liquefied hydrogen
valve
storage tank
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KR1020210162758A
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Korean (ko)
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KR20230075994A (en
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전완재
이준혁
김재경
박용덕
김동섭
박영동
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(주)모토닉
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    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/003—Housing formed from a plurality of the same valve elements
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • 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
    • 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
    • F17C2205/0308—Protective caps
    • 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
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • 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
    • 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

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

Abstract

본 발명은 액화수소용 PRV 모듈 장치에 있어서: 액화수소의 저장탱크(10)에 연결되고, 내부에 단턱부(26)를 구비하는 하우징(20); 및 상기 하우징(20)에 복수 압력으로 설정되도록 장착되고, 단턱부(26)와 접촉하는 구배부(36)를 구비하는 릴리프 밸브(30);를 포함하여 이루어지는 것을 특징으로 한다.
이에 따라, 액화수소 가동 시스템의 저장탱크 상으로 다수의 릴리프 밸브를 단일 밸브 하우징에 장착하는 구조를 적용하여 크기뿐만 아니라 조립 작업성을 향상하고, 일부 밸브의 기능 고장일 경우에 별도 교체도 가능하여 효율성을 향상하는 효과가 있다.The present invention relates to a PRV module device for liquefied hydrogen: a housing (20) connected to a storage tank (10) for liquefied hydrogen and having a stepped portion (26) therein; and a relief valve 30 mounted on the housing 20 to be set to multiple pressures and having a gradient portion 36 in contact with the step portion 26.
Accordingly, by applying a structure in which multiple relief valves are mounted on a single valve housing on the storage tank of the liquefied hydrogen operation system, not only size but also assembly workability is improved, and in case of malfunction of some valves, they can be replaced separately. It has the effect of improving efficiency.

Description

액화수소용 PRV 모듈 장치 {Pressure relief valve module apparatus for liquified hydrogen}PRV module apparatus for liquefied hydrogen {Pressure relief valve module apparatus for liquified hydrogen}

본 발명은 액화수소용 밸브 장치에 관한 것으로서, 보다 구체적으로는 액화수소 가동 시스템에 구비되는 저장탱크에 연계하기 위한 액화수소용 PRV 모듈 장치에 관한 것이다.The present invention relates to a valve device for liquefied hydrogen, and more specifically, to a PRV module device for liquefied hydrogen for connection to a storage tank provided in a liquefied hydrogen operation system.

차량, 선박, 발전소 등의 액화수소 가동 시스템에는 액화수소의 기화 시 저장탱크 내 압력 해소를 위한 PRV(압력 릴리프 밸브)가 구성되어 있다. 안전 관련 법규에 의하면 두 개 이상의 PRV의 장착을 요구하는데, 이 경우 조립되는 밸브 개수만큼의 작업이 필요하게 되고, 이로 인하여 작업 시간 및 소요 인력이 증가하는 문제점을 내포하고 있다. 이를 해소하기 위해 다수의 밸브를 단일 밸브 하우징에 장착하는 구조 변경을 검토할 수 있다.Liquid hydrogen operation systems for vehicles, ships, power plants, etc. are equipped with a PRV (pressure relief valve) to relieve pressure in the storage tank when liquefied hydrogen is vaporized. Safety-related laws require the installation of two or more PRVs, but in this case, as much work as the number of valves being assembled is required, which poses the problem of increasing work time and manpower. To solve this problem, a structural change to mount multiple valves in a single valve housing can be considered.

이와 관련되어 참조할 수 있는 선행기술문헌으로서 한국 등록실용신안공보 제0220525호(선행문헌 1), 한국 등록특허공보 제2216526호(선행문헌 2) 등이 알려져 있다.In relation to this, known prior art documents that can be referred to include Korea Registered Utility Model Publication No. 0220525 (Prior Document 1), Korean Patent Publication No. 2216526 (Prior Document 2), etc.

선행문헌 1은 콘트롤 밸브 블록의 일측에 형성된 밸브 장착부에는 릴리프밸브가 장착되며, 이 릴리프 밸브의 하면에는 릴리프 밸브의 내부로 유체가 통과되어 압력이 조절되도록 제1홀과 상응되는 위치에 유체 공급홀이 제4홀과 상응되는 위치에 유체 배출홀이 형성된다. 이에, 적은 공간에서 장착을 가능하게 하고 장착비용을 최소화하는 효과를 기대한다.Prior document 1 shows that a relief valve is mounted on the valve mounting portion formed on one side of the control valve block, and a fluid supply hole is provided on the lower side of the relief valve at a position corresponding to the first hole so that the fluid passes into the interior of the relief valve to adjust the pressure. A fluid discharge hole is formed at a position corresponding to this fourth hole. Accordingly, the effect of enabling installation in a small space and minimizing installation costs is expected.

선행문헌 2에 의하면 동일한 방향을 따라 배열되는 복수 개의 밸브; 및 내부에 유체가 이동할 수 있는 유로가 형성되어, 복수 개의 밸브와 결합되는 유체 이동 블록;을 포함하고, 복수 개의 밸브는 상호 병렬로 연결되도록 유로에 연통된다. 이에 따라, 조립 및 분리가 용이한 간단한 구조를 가질 수 있고, 설비의 유지 및 보수가 용이한 효과를 기대한다.According to prior art document 2, a plurality of valves arranged along the same direction; and a fluid movement block in which a flow path through which the fluid can move is formed and coupled to a plurality of valves, wherein the plurality of valves communicate with the flow path so as to be connected to each other in parallel. Accordingly, it is expected to have a simple structure that is easy to assemble and disassemble, and to facilitate maintenance and repair of the equipment.

다만, 상기한 선행문헌의 구성은 릴리프 밸브나 복수의 밸브를 개시하고 있지만 액화수소 가동 시스템에 구비되는 저장탱크에 적용하기에 미흡하여 개선의 여지를 보인다.However, although the configuration of the above-mentioned prior literature discloses a relief valve or a plurality of valves, it is insufficient to apply to a storage tank provided in a liquefied hydrogen operation system, showing room for improvement.

한국 등록실용신안공보 제0220525호 "릴리프 밸브" (공개일자 : 2001.04.16.)Korean Registered Utility Model Publication No. 0220525 “Relief Valve” (Publication date: 2001.04.16.) 한국 등록특허공보 제2216526호 "밸브 조립체" (공개일자 : 2020.12.18.)Korean Patent Publication No. 2216526 “Valve Assembly” (Publication Date: 2020.12.18.)

상기와 같은 종래의 문제점들을 개선하기 위한 본 발명의 목적은, 액화수소 가동 시스템에 구비되는 저장탱크에 연결되는 구성에 있어서 동일한 하우징을 이용하여 복수의 압력 릴리프 밸브를 수용하는 액화수소용 PRV 모듈 장치를 제공하는 데 있다.The purpose of the present invention to improve the conventional problems described above is a PRV module device for liquefied hydrogen that accommodates a plurality of pressure relief valves using the same housing in a configuration connected to a storage tank provided in a liquefied hydrogen operation system. is to provide.

상기 목적을 달성하기 위하여, 본 발명은 액화수소용 PRV 모듈 장치에 있어서: 액화수소의 저장탱크에 연결되고, 내부에 단턱부를 구비하는 하우징; 및 상기 하우징에 복수 압력으로 설정되도록 장착되고, 단턱부와 접촉하는 구배부를 구비하는 릴리프 밸브;를 포함하여 이루어지는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a PRV module device for liquefied hydrogen, comprising: a housing connected to a storage tank of liquefied hydrogen and having a stepped portion therein; and a relief valve mounted on the housing to be set to multiple pressures and having a gradient portion in contact with the stepped portion.

본 발명의 세부 구성에 의하면, 상기 하우징은 단일의 인렛과 아웃렛에 각각 연결되고, 단턱부에 챔퍼부를 구비하는 것을 특징으로 한다.According to the detailed configuration of the present invention, the housing is connected to a single inlet and a single outlet, and has a chamfer portion at the step portion.

본 발명의 세부 구성에 의하면, 상기 하우징은 릴리프 밸브의 밸브시트와 밀착되어 밀봉하는 돌기부를 더 구비하는 것을 특징으로 한다.According to the detailed configuration of the present invention, the housing is characterized in that it is further provided with a protrusion that comes into close contact with the valve seat of the relief valve and seals it.

본 발명의 세부 구성에 의하면, 상기 릴리프 밸브는 하우징에 결합되는 엔드캡을 개재하여 하부바디를 은폐하는 것을 특징으로 한다.According to the detailed configuration of the present invention, the relief valve is characterized in that the lower body is concealed through an end cap coupled to the housing.

본 발명의 변형예로서, 상기 릴리프 밸브는 하우징의 단턱부와 밀착되는 영역에 요홈부 및 완충부 중의 적어도 어느 하나를 더 구비하는 것을 특징으로 한다.As a modified example of the present invention, the relief valve is characterized by further comprising at least one of a groove portion and a buffer portion in an area in close contact with the stepped portion of the housing.

이상과 같이 본 발명에 의하면, 액화수소 가동 시스템의 저장탱크 상으로 다수의 릴리프 밸브를 단일 밸브 하우징에 장착하는 구조를 적용하여 크기뿐만 아니라 조립 작업성을 향상하고, 일부 밸브의 기능 고장일 경우에 별도 교체도 가능하여 효율성을 향상하는 효과가 있다.As described above, according to the present invention, by applying a structure in which multiple relief valves are mounted on a single valve housing on the storage tank of the liquefied hydrogen operation system, not only size but also assembly workability is improved, and in case of malfunction of some valves, It can also be replaced separately, which has the effect of improving efficiency.

도 1은 본 발명에 따른 장치를 설치 상태로 나타내는 구성도
도 2는 본 발명에 따른 장치의 주요부를 나타내는 구성도
도 3은 본 발명에 따른 장치의 변형예를 나타내는 구성도1 is a configuration diagram showing the device according to the present invention in an installed state.
Figure 2 is a configuration diagram showing the main parts of the device according to the present invention
Figure 3 is a configuration diagram showing a modified example of the device according to the present invention

이하, 첨부된 도면에 의거하여 본 발명의 실시예를 상세하게 설명하면 다음과 같다.Hereinafter, embodiments of the present invention will be described in detail based on the attached drawings.

본 발명은 액화수소용 PRV 모듈 장치에 관하여 제안한다. 차량, 선박, 발전소 등의 액화수소 가동 시스템에 적용되는 밸브 모듈을 대상으로 하지만 반드시 이에 국한되는 것은 아니다. 저장탱크(10)를 설정된 압력으로 유지하는 PRV(압력 릴리프 밸브)를 요체로 하지만 이에 한정되지 않는다.The present invention proposes a PRV module device for liquefied hydrogen. It targets, but is not necessarily limited to, valve modules applied to liquefied hydrogen operation systems such as vehicles, ships, and power plants. The main element is a PRV (pressure relief valve) that maintains the storage tank 10 at a set pressure, but is not limited to this.

본 발명에 따르면 내부에 단턱부(26)를 구비하는 하우징(20)이 액화수소의 저장탱크(10)에 연결되는 구조를 이루고 있다.According to the present invention, a housing 20 having a stepped portion 26 therein is connected to a storage tank 10 for liquefied hydrogen.

도 1을 참조하면, 액화수소 가동 시스템을 구성하는 저장탱크(10), 하우징(20) 등이 나타난다. 저장탱크(10)는 -253℃의 액화수소를 저장하지만 차량 등이 장기간 방지된 상태에서 기화가 유발되어 상측 공간에 -252℃의 기체수소가 충진된다. 저장탱크(10)의 상단에는 액화수소를 차량 등에 공급하기 위한 밸브모듈(15)이 설치된다. 하우징(20)은 동일한 구조를 지닌 다수의 공간을 구비하고, 공간의 일측에는 단턱부(26)가 환형으로 형성된다.Referring to Figure 1, a storage tank 10, a housing 20, etc. that constitute the liquefied hydrogen operation system are shown. The storage tank 10 stores liquefied hydrogen at -253°C, but vaporization occurs when vehicles are blocked for a long period of time, and the upper space is filled with gaseous hydrogen at -252°C. A valve module 15 is installed at the top of the storage tank 10 to supply liquefied hydrogen to vehicles, etc. The housing 20 has a plurality of spaces having the same structure, and a stepped portion 26 is formed in a ring shape on one side of the spaces.

이때, 하우징(20)은 전체적인 중량 증가를 해결하여 경박단소화를 이루면서 수소 취성에 대응하도록 알루미늄합금 재질을 사용하는 것이 바람직하다, At this time, the housing 20 is preferably made of aluminum alloy to address hydrogen embrittlement while making it light, thin, and short by solving the overall weight increase.

또한, 본 발명에 따르면 단턱부(26)와 접촉하는 구배부(36)를 구비하는 릴리프 밸브(30)가 상기 하우징(20)에 복수 압력으로 설정되도록 장착되는 구조를 이루고 있다.In addition, according to the present invention, a relief valve 30 having a gradient portion 36 in contact with the step portion 26 is configured to be mounted on the housing 20 to set multiple pressures.

도 1 및 도 2를 참조하면, 릴리프 밸브(30)를 구성하는 상부바디(31), 하부바디(32), 밸브체(34), 구배부(36) 등이 나타난다. 동일한 하우징(20)에 3개의 릴리프 밸브(30)가 장착된 상태를 나타내지만 이에 한정되지 않는다. 이 경우 3개의 릴리프 밸브(30)는 각각 16bar, 17bar, 18bar의 압력으로 설정하여 순차적 가동을 유발할 수 있다. 각각의 릴리프 밸브(30)는 구배부(36)를 개재하여 하우징(20)의 단턱부(26)에 밀착되어 액화수소 누출에 대응하는 밀봉력을 유지한다.Referring to Figures 1 and 2, the upper body 31, lower body 32, valve body 34, gradient portion 36, etc. that constitute the relief valve 30 are shown. Although it shows a state where three relief valves 30 are mounted on the same housing 20, the present invention is not limited to this. In this case, the three relief valves 30 can be set to pressures of 16 bar, 17 bar, and 18 bar, respectively, to cause sequential operation. Each relief valve 30 is in close contact with the step portion 26 of the housing 20 via the gradient portion 36 to maintain a sealing force corresponding to leakage of liquefied hydrogen.

한편, 릴리프 밸브(30)는 상부바디(31)와 하부바디(32)로 구분되면서 내부에 밸브체(34)를 갖춘다. 상부바디(31)에는 입구포트가 배치되고, 하부바디(32)에는 출구 포트가 배치된다. 밸브체(34)는 스프링에 의하여 설정된 압력에 도달하면 입구포트에서 출구포트로 저장탱크(10)의 액화수소를 배출한다.Meanwhile, the relief valve 30 is divided into an upper body 31 and a lower body 32 and has a valve body 34 therein. An inlet port is disposed on the upper body 31, and an outlet port is disposed on the lower body 32. The valve body 34 discharges the liquefied hydrogen from the storage tank 10 from the inlet port to the outlet port when the pressure set by the spring is reached.

본 발명의 세부 구성에 의하면, 상기 하우징(20)은 단일의 인렛(21)과 아웃렛(22)에 각각 연결되고, 단턱부(26)에 챔퍼부(27)를 구비하는 것을 특징으로 한다.According to the detailed configuration of the present invention, the housing 20 is connected to a single inlet 21 and a single outlet 22, and is characterized by having a chamfer portion 27 at the step portion 26.

도 1에서, 하우징(20)의 외부와 내부에 인렛(21), 아웃렛(22), 챔퍼부(27)가 나타낸다. 인렛(21)은 복수의 릴리프 밸브(30)의 입구포트에 동시에 연통하면서 저장탱크(10)의 밸브모듈(15) 측으로 연결된다. 아웃렛(22)은 복수의 릴리프 밸브(30)의 출구포트에 동시에 연통하면서 외기로 오픈된다. 하우징(20)의 단턱부(26)에 챔퍼부(27)를 형성하면 릴리프 밸브(30)의 구배부(36)에 대한 접촉면적을 증대하여 밀봉력을 향상한다.In Figure 1, an inlet 21, an outlet 22, and a chamfer portion 27 are shown outside and inside the housing 20. The inlet 21 communicates simultaneously with the inlet ports of the plurality of relief valves 30 and is connected to the valve module 15 of the storage tank 10. The outlet 22 is opened to the outside air while simultaneously communicating with the outlet ports of the plurality of relief valves 30. Forming the chamfer portion 27 on the stepped portion 26 of the housing 20 increases the contact area with the gradient portion 36 of the relief valve 30 to improve sealing force.

본 발명의 세부 구성에 의하면, 상기 하우징(20)은 릴리프 밸브(30)의 밸브시트(33)와 밀착되어 밀봉하는 돌기부(28)를 더 구비하는 것을 특징으로 한다.According to the detailed configuration of the present invention, the housing 20 further includes a protrusion 28 that comes into close contact with the valve seat 33 of the relief valve 30 and seals it.

도 2에서, 하우징(20)의 내부에 밸브시트(33)를 개재하여 밸브체(34)가 장착된다. 저장탱크(10)의 밸브모듈(15)에서 인렛(21)으로 유입되는 액화수소는 릴리프 밸브(30)의 외측과 밸브체(34)의 외측으로 누출될 우려가 있다. 전자의 누출 경로는 단턱부(26)-구배부(36)에 의하여 밀봉되고 후자의 누출 경로는 돌기부(28)에 의하여 밀봉된다. 돌기부(28)는 하우징(20)의 내부에 환상으로 형성되고 밸브시트(33)와 높은 밀봉력으로 밀착된다.In FIG. 2, the valve element 34 is mounted inside the housing 20 via the valve seat 33. The liquefied hydrogen flowing into the inlet 21 from the valve module 15 of the storage tank 10 may leak to the outside of the relief valve 30 and the valve body 34. The former leakage path is sealed by the step portion 26-gradient portion 36, and the latter leakage path is sealed by the protrusion portion 28. The protrusion 28 is formed in an annular shape inside the housing 20 and is in close contact with the valve seat 33 with high sealing force.

한편, 릴리프 밸브(30)와 밸브시트(33)도 적어도 부분적으로 하우징(20)과 동일한 알루미늄합금 재질을 사용할 수 있다.Meanwhile, the relief valve 30 and the valve seat 33 may also at least partially use the same aluminum alloy material as the housing 20.

본 발명의 세부 구성에 의하면, 상기 릴리프 밸브(30)는 하우징(20)에 결합되는 엔드캡(24)을 개재하여 하부바디(32)를 은폐하는 것을 특징으로 한다.According to the detailed configuration of the present invention, the relief valve 30 is characterized in that it hides the lower body 32 through an end cap 24 coupled to the housing 20.

도 1에서, 하우징(20)에 하부바디(32)를 은폐하는 엔드캡(24)이 장착된 상태를 나타낸다. 릴리프 밸브(30)의 하부바디(32)는 밸브체(34)의 스프링에 의한 작동압력을 조절할 수 있다. 엔드캡(24)은 하우징(20)에 나선으로 맞물려 긴밀하게 결합되고, 하부바디(32)가 외부로 노출되어 손상되지 않도록 보호한다. 엔드캡(24)도 하우징(20)과 동일한 알루미늄합금 재질을 사용한다.In Figure 1, the end cap 24 that conceals the lower body 32 is mounted on the housing 20. The lower body 32 of the relief valve 30 can adjust the operating pressure by the spring of the valve body 34. The end cap 24 is tightly coupled to the housing 20 in a spiral manner, and protects the lower body 32 from being exposed to the outside and being damaged. The end cap 24 is also made of the same aluminum alloy material as the housing 20.

본 발명의 변형예로서, 상기 릴리프 밸브(30)는 하우징(20)의 단턱부(26)와 밀착되는 영역에 요홈부(40) 및 완충부(45) 중의 적어도 어느 하나를 더 구비하는 것을 특징으로 한다.As a modified example of the present invention, the relief valve 30 further includes at least one of a groove 40 and a buffer 45 in an area in close contact with the step 26 of the housing 20. Do it as

도 3을 참조하면, 릴리프 밸브(30)에 부가될 수 있는 요홈부(40)와 완충부(45)가 나타난다. 도 3(a)에서 요홈부(40)는 단턱부(26)와 긴밀하게 맞물려 접촉면적을 증대하도록 릴리프 밸브(30)의 상부바디(31)에 환형으로 형성된다. 요홈부(40)의 내부에 환형의 돌기부 또는 요철부룰 더 형성할 수도 있다. 도 3(b)에서 완충부(45)는 요홈부(40)의 적어도 일부 영역에 환형으로 충진된다. 완충부(45)는 알루미늄합금보다 신축성, 내모마성, 내한성이 양호한 재질을 사용한다. 요홈부(40)와 완충부(45)는 알루미늄합금 재질간의 밀착시 기밀성능을 강하하는 작용을 기대할 수 있다.Referring to FIG. 3, a groove portion 40 and a buffer portion 45 that can be added to the relief valve 30 appear. In Figure 3(a), the groove portion 40 is formed in an annular shape on the upper body 31 of the relief valve 30 to closely engage with the step portion 26 and increase the contact area. Annular protrusions or concavo-convex portions may be further formed inside the groove portion 40. In Figure 3(b), the buffer portion 45 is filled with an annular shape in at least a portion of the groove portion 40. The buffer portion 45 is made of a material that has better elasticity, abrasion resistance, and cold resistance than aluminum alloy. The groove portion 40 and the buffer portion 45 can be expected to have the effect of lowering the airtightness performance when the aluminum alloy material is in close contact.

이와 같은 구성에 의하면 하우징(20) 상의 특정 릴리프 밸브(30)에 대한 압력 조절은 물론 점검과 교체를 용이하게 수행할 수 있다.According to this configuration, it is possible to easily control the pressure of the specific relief valve 30 on the housing 20 as well as inspect and replace it.

한편, 다수의 릴리프 밸브(30)를 갖춘 하우징(20)은 저장탱크(10)에서 밸브모듈(15)에 인접하게 탑재될 수도 있다.Meanwhile, the housing 20 equipped with a plurality of relief valves 30 may be mounted adjacent to the valve module 15 in the storage tank 10.

본 발명은 기재된 실시예에 한정되는 것이 아니고, 본 발명의 사상 및 범위를 벗어나지 않고 다양하게 수정 및 변형할 수 있음이 이 기술의 분야에서 통상의 지식을 가진 자에게 자명하다. 따라서 그러한 변형예 또는 수정예들은 본 발명의 특허청구범위에 속한다 해야 할 것이다.The present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and changes can be made without departing from the spirit and scope of the present invention. Therefore, it should be said that such variations or modifications fall within the scope of the patent claims of the present invention.

10: 저장탱크 15: 밸브모듈
20: 하우징 21: 인렛
22: 아웃렛 24: 엔드캡
26: 단턱부 27: 챔퍼부
28: 돌기부 30: 릴리프 밸브
31: 상부바디 32: 하부바디
33: 밸브시트 34: 밸브체
36: 구배부 40: 요홈부
45: 완충부10: storage tank 15: valve module
20: housing 21: inlet
22: outlet 24: end cap
26: step part 27: chamfer part
28: protrusion 30: relief valve
31: upper body 32: lower body
33: valve seat 34: valve body
36: sloped part 40: grooved part
45: buffer part

Claims (5)

액화수소용 PRV 모듈 장치에 있어서:
액화수소의 저장탱크(10)에 연결되고, 내부에 단턱부(26)를 구비하는 하우징(20); 및
상기 하우징(20)에 복수 압력으로 설정되어 설정되어 순차적으로 가동하도록 장착되고, 단턱부(26)와 접촉하는 구배부(36)를 구비하는 릴리프 밸브(30);를 포함하되,
상기 하우징(20)은 단일의 인렛(21)과 아웃렛(22)에 각각 연결되고, 단턱부(26)에 챔퍼부(27)를 구비하고,
상기 하우징(20)은 릴리프 밸브(30)의 밸브시트(33)와 환상으로 밀착되어 밀봉하는 돌기부(28)를 구비하며,
상기 릴리프 밸브(30)는 하우징(20)의 단턱부(26)와 밀착되는 영역에 요홈부(40) 및 완충부(45) 중의 적어도 어느 하나를 더 구비하는 것을 특징으로 하는 액화수소용 PRV 모듈 장치.In the PRV module device for liquefied hydrogen:
A housing (20) connected to a storage tank (10) for liquefied hydrogen and having a stepped portion (26) therein; and
A relief valve 30 is mounted on the housing 20 to be set to multiple pressures and operates sequentially, and has a gradient portion 36 in contact with the step portion 26,
The housing 20 is connected to a single inlet 21 and an outlet 22, and has a chamfer portion 27 at the step portion 26,
The housing 20 has a protrusion 28 that is in close contact with the valve seat 33 of the relief valve 30 and seals it in an annular shape,
The relief valve 30 is a PRV module for liquefied hydrogen, characterized in that it further includes at least one of a groove 40 and a buffer 45 in an area in close contact with the step 26 of the housing 20. Device. 삭제delete 삭제delete 청구항 1에 있어서,
상기 릴리프 밸브(30)는 하우징(20)에 결합되는 엔드캡(24)을 개재하여 하부바디(32)를 은폐하는 것을 특징으로 하는 액화수소용 PRV 모듈 장치.In claim 1,
The relief valve 30 is a PRV module device for liquefied hydrogen, characterized in that it hides the lower body 32 through an end cap 24 coupled to the housing 20. 삭제delete
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JP2019132349A (en) * 2018-01-31 2019-08-08 Ｋｙｂ株式会社 Valve device
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KR102207454B1 (en) * 2019-05-20 2021-01-26 하이리움산업㈜ Mobile liquid and gas hydrogen- refulling apparatus

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US6231966B1 (en) 1995-04-14 2001-05-15 Toyo Boseki Kabushiki Kaisha Oriented polyester film
EP2728241B1 (en) * 2012-11-05 2016-02-03 Magna Steyr Fahrzeugtechnik AG & Co KG Tank support unit with sealing valve
CA3115880A1 (en) * 2018-10-18 2020-04-23 Alcrys Fluid-Control & Services Device for filling and withdrawing gas
KR102216526B1 (en) 2019-06-10 2021-02-17 (주)티티에스 Valve assembly

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Publication number Priority date Publication date Assignee Title
KR100280893B1 (en) * 1998-07-14 2001-11-02 권갑주 Valve's Fluid Flow Control
JP2019132349A (en) * 2018-01-31 2019-08-08 Ｋｙｂ株式会社 Valve device
KR101987459B1 (en) * 2018-08-31 2019-09-30 (주)모토닉 Receptacle for fuel cell electric vehicle
KR102207454B1 (en) * 2019-05-20 2021-01-26 하이리움산업㈜ Mobile liquid and gas hydrogen- refulling apparatus

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