JPS5872800A - 貯槽内液化ガスのｂｏｇ量減少方法 - Google Patents

貯槽内液化ガスのｂｏｇ量減少方法

Info

Publication number
JPS5872800A
JPS5872800A JP16971081A JP16971081A JPS5872800A JP S5872800 A JPS5872800 A JP S5872800A JP 16971081 A JP16971081 A JP 16971081A JP 16971081 A JP16971081 A JP 16971081A JP S5872800 A JPS5872800 A JP S5872800A
Authority
JP
Japan
Prior art keywords
bog
liquefied gas
storage tank
amount
liquefied
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP16971081A
Other languages
English (en)
Other versions
JPS6132557B2 (ja
Inventor
Yuzo Sugawara
菅原　佑三
Atsushi Kubota
篤 久保田
Yasuhiro Takagishi
高岸　泰宏
Makoto Tashimo
田下　誠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Gas Co Ltd
Original Assignee
Tokyo Gas Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Gas Co Ltd filed Critical Tokyo Gas Co Ltd
Priority to JP16971081A priority Critical patent/JPS5872800A/ja
Publication of JPS5872800A publication Critical patent/JPS5872800A/ja
Publication of JPS6132557B2 publication Critical patent/JPS6132557B2/ja
Granted legal-status Critical Current

Links

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
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/126—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for large storage containers for liquefied gas
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0119—Shape cylindrical with flat 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
    • 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
    • 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
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • 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
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/043—Localisation of the removal point in the gas
    • F17C2223/045—Localisation of the removal point in the gas with a dip tube
    • 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
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/046—Localisation of the removal point in the liquid
    • F17C2223/047—Localisation of the removal point in the liquid with a dip tube
    • 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
    • F17C2227/0157—Compressors
    • 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/03—Treating the boil-off

Landscapes

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

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 本発明は、低温液体、例えば液化天然ガス（以下ＬＮＧ
という）を貯蔵する貯槽内に於いて、自然蒸発により発
生するガス（以下ＢＯＧという）を一時的に減少させる
方法に係るものである。従来、例えば需要等の減少によ
り、貯槽内ＢＯＧの量を一時的に減少する必要が生じた
場合、そのＢＯ（）を装置の運転維持にも費用がかかり
、コストアップにもつながっていた。本発明は、かかる
欠点を解決するものであって、その要旨とするところは
、貯槽内で発生したＢＯＧを同−貯槽内の液化カス中に
混入することによりＢＯＧを液化して、一時的に貯槽内
ＢＯＧの量を減少させるようにしたＢＯＧの抑制方法で
ある。以下図面と共に詳述すると次の通りである。第１
図に於いて、符号１は例えばＬＮＧを貯蔵する貯槽であ
って、この貯槽１内には多方向にＢＯＧを噴射するノズ
ル２を具えたＢＯＧ噴射管３を装置する。この噴射管３
は、別個に設けたＢＯＧ排出管４とコンプレッサ５を介
して接続する。６はガス量コントロール弁である。いま
、例えば、一時的にＢＯＧ発生量を減少する必要が生じ
た場合、コンプレッサ５によって貯槽１内のＢＯＧを吸
引し、それをコントロール弁６を介して噴射管４に導き
ノズル２から液化ガス中に噴射混入すると、液化ガスに
よってＢＯ（）は冷却されて液化する。ＢＯＧの混入に
よって液化ガス７は加熱されるか、液化ガスの熱容量が
大きいため、液化ガスの発生量の増加は微増であり、一
時的にはＢＯＧの量を減少することができる。第２図は
、貯槽１内に、縦方向にエジェクタ８を装置し、このエ
ジェクタ８に、工ジエクタ流量制御弁９を介して、液化
ガスを噴出させ、その噴出エネルギによって、図中矢印
の通り、ＢＯＧを吸引して液化ガス７中にＢＯＧを混入
し液化する方法である。エジェクタ８に噴出する液化ガ
スは、液化ガス取出管１０からその一部を取出して行う
ものである。１１は液化ガス送出ポンゾである。以上の
第１図及び第２図に於いて、液化ガス取出管１０からジ
ェットミキシングノズル１２へ、液化ガスの一部を導き
、貯槽１内の液化ガス中へ液化ガスを噴出させて液化ガ
ス７０表面温度を下げてＢＯＧの発生を抑制する方法を
併用してもよい。
本発明は以上の通りであるので、貯槽とは別個に冷却液
化装置を設ける必要がなく、従ってそれの設備維持費用
がなくなるだけでなく、簡単な操作で且つ短時間でＢＯ
Ｇの量を減少することかでき、一時的にＢＯＧの量を減
少する事態に即応できる大きなメリットがある。
【図面の簡単な説明】
第１図及び第２図は全体の系統説明図である。 （３） 符号１・・・・・・貯槽、２・・・・・・ノズル、３・
・・・・・噴射管、４・・・・・・ＢＯＧ排出管、５・
・・−・・コンプレッサ、６・・・・・・ガス量コント
ロール弁、７・・・・・・液化カス、８・・・・・・エ
ジェクタ、９・・・・・・エジェクタ流量制御弁、１０
・・・・・・液化ガス取出管、１１・・・・・・液化ガ
ス送出ポンプ。 出願人　東京瓦斯株式会社 代理人　三　胃　晃　司 （４）

Claims (1)

    【特許請求の範囲】
  1. 貯槽内で発生したＢＯＧを同−貯槽内の液化ガス中に混
    入することによりＢＯＧを液化して、一時的にタンク内
    のＢＯＧの量を減少させることを特徴とする液化ガスの
    ＢＯＧ量減少方法。
JP16971081A 1981-10-23 1981-10-23 貯槽内液化ガスのｂｏｇ量減少方法 Granted JPS5872800A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16971081A JPS5872800A (ja) 1981-10-23 1981-10-23 貯槽内液化ガスのｂｏｇ量減少方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16971081A JPS5872800A (ja) 1981-10-23 1981-10-23 貯槽内液化ガスのｂｏｇ量減少方法

Publications (2)

Publication Number Publication Date
JPS5872800A true JPS5872800A (ja) 1983-04-30
JPS6132557B2 JPS6132557B2 (ja) 1986-07-28

Family

ID=15891428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16971081A Granted JPS5872800A (ja) 1981-10-23 1981-10-23 貯槽内液化ガスのｂｏｇ量減少方法

Country Status (1)

Country Link
JP (1) JPS5872800A (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001304497A (ja) * 2000-03-09 2001-10-31 Cryostar-France Sa 液化天然ガスからボイル・オフした蒸気を再液化する方法及びその装置
JP2005507486A (ja) * 2001-10-31 2005-03-17 アドバンスト・プロダクション・アンド・ローディング・エーエス 圧力容器から蒸気及びガスを吸収する方法
JP2008196682A (ja) * 2007-02-12 2008-08-28 Daewoo Shipbuilding & Marine Engineering Co Ltd Ｌｎｇ貯蔵タンク及びこれを用いた蒸発ガス処理方法
US20090211262A1 (en) * 2007-02-12 2009-08-27 Daewoo Shipbuilding & Marine Engineering Co., Ltd. Lng tank ship having lng circulating device
US7841288B2 (en) 2008-02-11 2010-11-30 Daewoo Shipbuilding & Marine Engineering Co., Ltd. Storage tank containing liquefied natural gas with butane
US9086188B2 (en) 2008-04-10 2015-07-21 Daewoo Shipbuilding & Marine Engineering Co., Ltd. Method and system for reducing heating value of natural gas

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0713744U (ja) * 1993-08-13 1995-03-07 矢野 嘉一 シ−ト状連続体を収容した袋

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001304497A (ja) * 2000-03-09 2001-10-31 Cryostar-France Sa 液化天然ガスからボイル・オフした蒸気を再液化する方法及びその装置
JP2005507486A (ja) * 2001-10-31 2005-03-17 アドバンスト・プロダクション・アンド・ローディング・エーエス 圧力容器から蒸気及びガスを吸収する方法
JP2008196682A (ja) * 2007-02-12 2008-08-28 Daewoo Shipbuilding & Marine Engineering Co Ltd Ｌｎｇ貯蔵タンク及びこれを用いた蒸発ガス処理方法
US20090211262A1 (en) * 2007-02-12 2009-08-27 Daewoo Shipbuilding & Marine Engineering Co., Ltd. Lng tank ship having lng circulating device
US8028724B2 (en) 2007-02-12 2011-10-04 Daewoo Shipbuilding & Marine Engineering Co., Ltd. LNG tank and unloading of LNG from the tank
US8820096B2 (en) 2007-02-12 2014-09-02 Daewoo Shipbuilding & Marine Engineering Co., Ltd. LNG tank and operation of the same
US8943841B2 (en) * 2007-02-12 2015-02-03 Daewoo Shipbuilding & Marine Engineering Co., Ltd. LNG tank ship having LNG circulating device
US10352499B2 (en) 2007-02-12 2019-07-16 Daewoo Shipbuilding & Marine Engineering Co., Ltd. LNG tank and operation of the same
US10508769B2 (en) 2007-02-12 2019-12-17 Daewoo Shipbuilding & Marine Engineering Co., Ltd. LNG tank and operation of the same
US11168837B2 (en) 2007-02-12 2021-11-09 Daewoo Shipbuilding & Marine Engineering Co., Ltd. LNG tank and operation of the same
US7841288B2 (en) 2008-02-11 2010-11-30 Daewoo Shipbuilding & Marine Engineering Co., Ltd. Storage tank containing liquefied natural gas with butane
US9086188B2 (en) 2008-04-10 2015-07-21 Daewoo Shipbuilding & Marine Engineering Co., Ltd. Method and system for reducing heating value of natural gas

Also Published As

Publication number Publication date
JPS6132557B2 (ja) 1986-07-28

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