KR900014606A - 기밀실내로 고압 및 고속으로 가스를 주입하고 회수하기 위한 장치 - Google Patents

기밀실내로 고압 및 고속으로 가스를 주입하고 회수하기 위한 장치 Download PDF

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KR900014606A
KR900014606A KR1019900003497A KR900003497A KR900014606A KR 900014606 A KR900014606 A KR 900014606A KR 1019900003497 A KR1019900003497 A KR 1019900003497A KR 900003497 A KR900003497 A KR 900003497A KR 900014606 A KR900014606 A KR 900014606A
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South Korea
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valve
hermetic chamber
pipe
tank
gas
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KR1019900003497A
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English (en)
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펠리시에 로롱
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베. 지라르댕
에뛰드 에 꽁스트뤄시옹 메까니끄
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Publication of KR900014606A publication Critical patent/KR900014606A/ko

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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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/613—Gases; Liquefied or solidified normally gaseous material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
    • 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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • 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
    • F17C2203/0626—Multiple walls
    • F17C2203/0629—Two walls
    • 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
    • F17C2203/068—Special properties of materials for vessel walls
    • F17C2203/0685—Special properties of materials for vessel walls flexible
    • 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
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0176—Details of mounting arrangements with ventilation
    • 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
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • F17C2221/017—Helium
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0114—Propulsion of the fluid with vacuum injectors, e.g. venturi
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86187—Plural tanks or compartments connected for serial flow

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

내용 없음

Description

기밀실내로 고압 및 고속으로 가스를 주입하고 회수하기 위한 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
본 발명에 따른 장치의 개략도.

Claims (4)

  1. 경질탱크(3)와 상기 경질탱크내에 배치된 연질탱크(4)로 이루어진 가스저장탱크(2), 상기 연질탱크를 상기 기밀실에 연결하고 제1밸브(6)로 구성된 제1파이프(5), 상기 연질탱크를 상기 기밀실에 연결하고 기밀실에서 연질탱크로 가스를 펌핑하기 위한 펌프수단(12)으로 이루어진 제2파이프(11), 연질탱크(4)와 경질탱크(3) 사이에 배치된 공간(7)에 압축공기를 충전하기 위한 압축공기 유입구(9), 상기 공간(7)을 통기하기 위한 제2밸브(13)로 구성되고 상기 공간(7)내로 압축공기를 도입하고 제1벨브(6)를 개방함으로서 상기 기밀실(1)을 충전하고 제1 및 제2밸브를 개방함으로써 상기 기밀실을 진공배기하고, 제1밸브(6)를 폐쇄하고 펌프수단(12)으로 연질탱크(4)쪽으로 상기 기밀실내의 잔류가스를 진공배기하는 것을 특징으로 하는 기밀실(1) 내에 압축가스를 충전하고 상기 처리실내의 가스를 진공배기하며 상기 가스를 저장할 수 있는 장치.
  2. 제1항에 있어서, 펌프수단(12)의 제2파이프(11)하류부내에 비치된 제3밸브(19) 및 펌프수단(12)의 제2파이프 상류부내에 배치된 제4밸브(20) 및 펌프수단(12)의 제2파이프 상류부와 제4밸브(20) 하류부사이에 배치되고 제5밸브(23)가 제공된 통기파이프(22)가 추가로 구성되어, 제1밸브(6), 제3밸브(19) 및 제5밸브(23)를 개방하고 제4밸브(20)를 폐쇄함으로서 펌프수단(12)에 의해 상기 연질탱크(4) 및 상기 기밀실(1)을 진공배기할 수 있는 것을 특징으로 하는 장치.
  3. 제1항에 있어서, 연질탱크(4)와 제1밸브(6)사이의 제1파이프(5)로 개방하는 제6밸브(16)로 구성된 제3파이프(15)를 통하여 이 가스를 운반함으로서 연질탱크(4)내로 가스를 공급하기 위한 수단이 추가로 구성된 것을 특징으로 하는 장치.
  4. 제1항에 있어서, 기밀실(1)내의 압력측정용 수단, 상기 제1밸브(6)에 평행하고 상기 압력측정수단에 의해 제어되는 제7밸브(18)로 구성된 제4저류파이프(17)가 추가로 구성되고 제1밸브(6)가 폐쇄되고 처리공정이 기밀실(1)내에서 수행될 때, 압력측정수단은 기밀실(1)내의 압력이 예정압력보다 낮으면 제7밸브(18)를 개방하도록 제어하고 기밀실내의 압력이 예정압력보다 높으면 제7밸브(18)를 폐쇄하도록 제어하는 것을 특징으로 하는 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900003497A 1989-03-17 1990-03-15 기밀실내로 고압 및 고속으로 가스를 주입하고 회수하기 위한 장치 KR900014606A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR89/03795 1989-03-17
FR8903795A FR2644557A1 (fr) 1989-03-17 1989-03-17 Dispositif d'injection de gaz sous pression et debit eleves dans une enceinte etanche avec recuperation du gaz

Publications (1)

Publication Number Publication Date
KR900014606A true KR900014606A (ko) 1990-10-24

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KR1019900003497A KR900014606A (ko) 1989-03-17 1990-03-15 기밀실내로 고압 및 고속으로 가스를 주입하고 회수하기 위한 장치

Country Status (6)

Country Link
US (1) US5018551A (ko)
EP (1) EP0388332A1 (ko)
JP (1) JP2982074B2 (ko)
KR (1) KR900014606A (ko)
CA (1) CA2012269A1 (ko)
FR (1) FR2644557A1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020046237A (ko) * 2002-04-04 2002-06-20 최수혜 부탄폐실린더에서 부탄회수 방법 및 장치

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5368067A (en) * 1993-03-23 1994-11-29 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Gas storage and recovery system
DE4326888C2 (de) * 1993-08-11 1996-05-15 Hoechst Ag Rückhaltesystem und Verfahren zur Verhinderung des Austritts von Stoffen aus Anlagen in die Umgebung
FR2725438A1 (fr) * 1994-10-11 1996-04-12 Aerospatiale Banc de vidange d'equipements hydrauliques
US5803137A (en) * 1995-07-24 1998-09-08 Beldex Corporation Liquid crystal delivering apparatus
FR2756036B1 (fr) * 1996-11-20 1999-01-08 Dehon Sa Anciens Etablissement Procede pour re-eprouver un emballage rempli d'un fluide actif et d'un propulseur et appareillage pour la mise en oeuvre du procede
US6152192A (en) * 1998-02-11 2000-11-28 Welding Company Of America Controller for system for filling gas cylinders with single gas or gas mixture
US6079459A (en) * 1998-02-11 2000-06-27 Welding Company Of America Controller for tank-filling system
DE19916385C2 (de) * 1999-03-31 2001-02-08 Mannesmann Ag Fahrzeug mit Druckgasbehälter als Fahrzeugtank
FR2807423B1 (fr) * 2000-04-05 2002-10-31 Eastman Kodak Co Installation de traitement d'eaux de lavage munie d'un dispositif de recyclage independant.
KR20030046506A (ko) * 2000-10-13 2003-06-12 미셀 테크놀로지즈, 인코포레이티드 이산화탄소 및 분리형 압력용기를 이용하는 드라이크리닝처리용 기구 및 방법
DE10113725A1 (de) * 2001-03-21 2002-09-26 Linde Ag Nicht formbeständiger Speicherbehälter und Verfahren zum Speichern von Gasen
FR2835907B1 (fr) * 2002-02-12 2004-09-17 Air Liquide Installation de trempe par gaz et procede de trempe correspondant
JP2004036169A (ja) * 2002-07-02 2004-02-05 Komatsu Ltd 作業車両
KR20060041251A (ko) * 2003-07-23 2006-05-11 도아고세이가부시키가이샤 수성 잉크
FR2858983B1 (fr) * 2003-08-21 2005-09-23 Air Liquide Procede de trempe par gaz mettant en oeuvre une installation de recyclage
CN102661481A (zh) * 2012-05-04 2012-09-12 昆山市恒安工业气体有限公司 一种槽罐车废气回收装置
CN102658938A (zh) * 2012-05-18 2012-09-12 昆山市恒安工业气体有限公司 一种槽罐车智能废气回收装置
CN104534275B (zh) * 2015-01-19 2016-04-20 西南交通大学 一种氦气回收循环利用装置的专用机柜
DK3380774T3 (da) 2015-11-25 2021-10-04 Isocurrent Energy Incorporated Variabel trykbeholder
CN108980600A (zh) * 2018-07-27 2018-12-11 清华大学 一种地下恒压储气装置
CN113137563B (zh) * 2020-01-16 2022-07-19 蔡孟学 高纯度无机化合物二氯硅烷分装储存容器的填充方法
CN113137567B (zh) * 2020-01-16 2022-07-19 蔡孟学 高纯度无机化合物二氯硅烷分装储存容器的残气回收方法
CN111365608B (zh) * 2020-04-23 2021-03-26 蓝箭航天空间科技股份有限公司 一种用于高压气体充装及回收的方法
CN112984372A (zh) * 2021-02-07 2021-06-18 中国空气动力研究与发展中心超高速空气动力研究所 一种利用压缩空气动力的隔膜式风洞特种气体充气方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE493278A (ko) *
GB868246A (en) * 1958-05-29 1961-05-17 Degussa Process for accelerating the cooling of materials treated in vacuum furnaces
FR1435773A (fr) * 1964-06-01 1966-04-22 Technigaz Procédé et dispositif d'auto-régulation de la pression d'un fluide confiné et leurs diverses applications
DE1899429U (de) * 1964-06-19 1964-08-27 Max Planck Gesellschaft Helium-rueckgewinnungsvorrichtung.
CH561564A5 (ko) * 1972-09-22 1975-05-15 Aswag Ag
NL7509293A (nl) * 1975-08-05 1977-02-08 Stamicarbon Inrichting voor het bereiden van polymeren met een brede molecuulgewichtsverdeling.
DE2734323A1 (de) * 1977-07-29 1979-02-08 Agfa Gevaert Ag Verfahren zum erzeugen bzw. ablassen von gasdruck in bzw. aus der bildkammer eines elektronenradiografischen abbildungssystems
US4333503A (en) * 1980-01-30 1982-06-08 John Stefiuk System and methods with scavenging capabilities for simultaneously filling and evacuating a plurality of separate pressure vessels
NL8205061A (nl) * 1981-12-30 1983-07-18 Siemerink Bv Gashouder.
FR2634866B1 (fr) * 1988-07-26 1990-10-19 Thierry Dimier Traitements The Procede et dispositif pour la recuperation d'un fluide en vue de sa reutilisation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020046237A (ko) * 2002-04-04 2002-06-20 최수혜 부탄폐실린더에서 부탄회수 방법 및 장치

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JPH039199A (ja) 1991-01-17
US5018551A (en) 1991-05-28
EP0388332A1 (fr) 1990-09-19
JP2982074B2 (ja) 1999-11-22
FR2644557A1 (fr) 1990-09-21
CA2012269A1 (en) 1990-09-17

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