JPS58146800A - Method of restraining evaporation of low temperature liquefied gas leaking into liquid preventing embankment and housing for restraining heat insulating material used for said method - Google Patents

Method of restraining evaporation of low temperature liquefied gas leaking into liquid preventing embankment and housing for restraining heat insulating material used for said method

Info

Publication number
JPS58146800A
JPS58146800A JP2942782A JP2942782A JPS58146800A JP S58146800 A JPS58146800 A JP S58146800A JP 2942782 A JP2942782 A JP 2942782A JP 2942782 A JP2942782 A JP 2942782A JP S58146800 A JPS58146800 A JP S58146800A
Authority
JP
Japan
Prior art keywords
liquefied gas
temperature liquefied
low
heat insulating
insulating material
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
JP2942782A
Other languages
Japanese (ja)
Other versions
JPS6123440B2 (en
Inventor
Shigeo Tomura
重男 戸村
Yasushi Hasegawa
靖 長谷川
Hiroshi Nishio
洋 西尾
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.)
IHI Corp
Original Assignee
IHI Corp
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 IHI Corp filed Critical IHI Corp
Priority to JP2942782A priority Critical patent/JPS58146800A/en
Publication of JPS58146800A publication Critical patent/JPS58146800A/en
Publication of JPS6123440B2 publication Critical patent/JPS6123440B2/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
    • F17C2201/0119—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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/052—Size large (>1000 m3)
    • 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
    • F17C2205/018—Supporting feet
    • 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
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/037—Handling leaked fluid

Landscapes

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

Abstract

PURPOSE:To enable evaporation of low temperature liquefied gas to be automatically and rapidly restrained when said gas leaks into a liquid preventing embankment by piling a required number of housings housing particulate or powdered heat insulating material in a required position inside the embankment. CONSTITUTION:A plurality of housings 3 housing particulate or powdered heat insulating material like pearlite balls are piled in a required position inside a liquid preventing embankment 2. When low temperature liquefied gas leaks through broken portions of a liquefied gas storage tank 1 and accumulates in said embankment 2 to contact fixing fittings 5 for the housing 3, the fixing fittings 5 are broken to open the housing 3 so that the heat insulating material 4 is scattered at a time on the surface of the low temperature liquefied gas in said embankment 2 to form an interface insulating layer on the surface. Thus, the evaporation of the low temperature liquefied gas can be automatically and rapidly restrained.

Description

【発明の詳細な説明】 本発明は防波堤内に漏洩した低温液化ガスが蒸発するの
を抑制する方法及び該方法に使用する抑制断熱材の格納
箱に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for suppressing evaporation of low-temperature liquefied gas leaked into a breakwater, and a storage box for suppressing heat insulating material used in the method.

低温液化ガスを収納した液化ガス貯槽が破損して液が防
液堤内に滞留した場合に火災が発生すると、火炎の輻射
熱により低温液化ガスは蒸発する。このｆＪ１ｍ液化ガ
スの蒸発を抑１ｊｌＪ′ｒｊるため、低温液化ガスが防
液堤内に漏洩したら、低温液化ガスの油表面に例えば球
状に加■したパーライトボール等の粒状或いは粉状の断
熱材を散市し、油表面を該断熱材で覆うｈ′ｔｈが考え
られている。しかし、粒状の断熱材を゛どこへどのよう
に保管し、いかにして油表面に散荀するかについては、
全く具体的手段が提案されていないのが実情である。If a fire occurs when a liquefied gas storage tank containing low-temperature liquefied gas is damaged and the liquid accumulates inside the dike, the radiant heat of the flames will evaporate the low-temperature liquefied gas. In order to suppress the evaporation of this fJ1m liquefied gas, if the low-temperature liquefied gas leaks into the dike, a granular or powder heat insulating material such as spherical perlite balls should be placed on the oil surface of the low-temperature liquefied gas. h'th is being considered in which the oil surface is dispersed and the oil surface is covered with the heat insulating material. However, where and how to store the granular insulation material and how to scatter it on the oil surface is unclear.
The reality is that no concrete measures have been proposed.

本発明は斯かる観点に鑑み、低温液化ガスが防液堤内に
漏洩したら自動的且つ迅速に粒状或は粉状の断熱材を油
表面に散右し得るようにした低温液化ガスの蒸発抑制方
法及び該７］　２１に使用する粒状或は粉状の断熱材を
収納する格納箱を提供することを目的としている。In view of this, the present invention provides a method for suppressing evaporation of low-temperature liquefied gas, which enables granular or powder heat insulating material to be automatically and quickly scattered on the oil surface when the low-temperature liquefied gas leaks into the dike. and 7] The object of the present invention is to provide a storage box for storing granular or powder heat insulating material used in 21.

以下、本発明の実施例を図面により説明する。Embodiments of the present invention will be described below with reference to the drawings.

図中１はＬＮＧ、ＬＰＧ等の低温液化ガスを収納する液
化ガス貯槽、２は液化ガス貯槽１の破損個所から漏洩し
た低温液化ガスを溜める防液堤、３はパーライト球等の
粒状或は粉状の断熱材４を収納した格納箱であり、防液
堤２の内側所要位置に適宜積重ねられている。In the figure, 1 is a liquefied gas storage tank that stores low-temperature liquefied gas such as LNG and LPG, 2 is a liquid barrier that stores low-temperature liquefied gas leaked from the damaged part of liquefied gas storage tank 1, and 3 is a granular or powdered pearlite ball. It is a storage box containing heat insulating materials 4 of the shape, and is appropriately stacked at required positions inside the liquid barrier 2.

格納箱３の一例の詳細は第２図イ１ロ、八に示されてお
り、各面の隅角部には、固定用金具５を取付けて箱体を
組立て固定し、格納箱３を構成する。固定用金具５は錫
やプラスチック等低濃に脆い材料或は、これらの液に溶
解し易い材料とし、固定位置は箱体３面が合致する部分
の他、２面が合致する部分でも良い。又第１段目と第２
段目には、第２図イ１口に示すごとくテーパが付いてお
り、１段目が破壊すれば他の格納箱が崩れ落ち、全ての
箱が低温液に接することにより、全ての箱がいっせいに
崩れるようになっている。図中６はストッパである。The details of an example of the storage box 3 are shown in Figure 2 A1B and 8.Fixing metal fittings 5 are attached to the corners of each side to assemble and fix the box body, and the storage box 3 is constructed. do. The fixing fittings 5 are made of a weakly brittle material such as tin or plastic, or a material that is easily dissolved in these liquids, and the fixing position may be a part where the three sides of the box body meet or a part where the two faces match. Also, the first stage and the second stage
The tiers are tapered as shown in Fig. 2 A, and if the first tier is destroyed, the other storage boxes will collapse, and all the boxes will come into contact with the low-temperature liquid, causing all the boxes to explode at once. It's starting to collapse. 6 in the figure is a stopper.

低温液化ガスが液化ガス貯槽１の破損個所から漏洩して
防油堤２内に溜まり、格納箱３の固定用金具５と接触す
ると該固定用金具５が破壊して格納箱３が開き、−気に
断熱材４は防液堤２内の低温液化ガスの表面にばら蒔か
れ、その表面に界１ＩｉｌｌｌＩｉ熱層が形成される。When the low-temperature liquefied gas leaks from the damaged part of the liquefied gas storage tank 1 and accumulates in the oil barrier 2, and comes into contact with the fixing fittings 5 of the storage box 3, the fixing fittings 5 break and the storage box 3 opens, - The air insulating material 4 is scattered on the surface of the low-temperature liquefied gas in the liquid barrier 2, and a thermal layer is formed on the surface.

これによって低温液化ガスの蒸発が抑制される。This suppresses evaporation of the low temperature liquefied gas.

なお、本発明の実施例においては、格納箱を低温液化ガ
スに脆い固定用金具により組立、固定する場合について
説明したが、斯かる固定用金具を用いず、箱全体を錫、
或はプラスチック等低濃に脆い材料で作成しても良い口
と、その他、本発明の要旨を逸脱しない範囲内で種々変
更を加え得ること、等は勿論である。In addition, in the embodiment of the present invention, a case has been described in which the storage box is assembled and fixed using fixing fittings that are vulnerable to low-temperature liquefied gas, but such fixing fittings are not used and the entire box is made of tin,
It goes without saying that the opening may be made of a slightly brittle material such as plastic, and that various other changes may be made without departing from the gist of the present invention.

本発明の防液堤内に漏洩した低温液化ガスの蒸発抑制り
法及び該方法に使用する抑制断熱材の格納箱によれ′ば
、 （１）粒状の断熱材を使用できるため扱いやすく、又設
備費、維持費が安価となる。According to the method of suppressing evaporation of low-temperature liquefied gas leaked into a liquid barrier of the present invention and the storage box for suppressing heat insulating material used in the method, (1) granular heat insulating material can be used, making it easy to handle, and equipment The cost and maintenance costs are low.

（１）低温液化ガスの漏洩時に自動的且つ迅速に粒状或
は粉状の断熱材を液表面に散布でき、又構造が簡単であ
るため価格も安価である。(1) When low-temperature liquefied gas leaks, granular or powder heat insulating material can be automatically and quickly sprayed onto the liquid surface, and the structure is simple, so the price is low.

等、種々の優れた効果を奏し得る。Various excellent effects can be achieved.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の詳細な説明図、第２図イ　、ロ　、ハ
は本発明に使用ｑる抑制断熱材の格納箱の説明図である
。 図中１は液化ガス貯槽、２は防液堤、３は格納箱、４は
断熱材、５は固定用金具を示す。 特　　許　　出　　願　　人 石川島播磨重［業株式会社FIG. 1 is a detailed explanatory diagram of the present invention, and FIGS. 2A, 2B, and 2C are explanatory diagrams of a storage box for a heat-reducing heat-reducing material used in the present invention. In the figure, 1 is a liquefied gas storage tank, 2 is a liquid barrier, 3 is a storage box, 4 is a heat insulating material, and 5 is a fixing metal fitting. Patent application Hitoshi Kawajima Harima Heavy Industries Co., Ltd.

Claims (1)

【特許請求の範囲】 １）　低濃液化ガスに接触ｑることにより破壊される格
納箱に粒状或は粉状の断熱材を収納して防液堤内所要位
置に所要数積み、液化ガス貯槽から防波堤内に漏洩した
低温液化ガスが接触することにより前記格納箱を破壊さ
せ、格納箱内に収納された粒状或は粉状の断熱材を低温
液化ガスの油表面に均一に浮遊させて界面断熱層を形成
させることを特徴とする防液堤内に漏洩した低温液化ガ
スの蒸発抑制方法。 ２）　低温液化ガスに脆い材料から成る固定用金具を隅
部に設け、箱体を組立、固定したことを特徴とする防液
堤内に漏洩した低温液化ガスの抑制方法に使用する抑ｔ
１１１断熱材の格納箱。[Scope of Claims] 1) Granular or powder heat insulating material is stored in a storage box that is destroyed by contact with low concentration liquefied gas, and the required number of insulation materials are stacked at the required positions within the dike, and then removed from the liquefied gas storage tank. When the low-temperature liquefied gas leaks into the breakwater and comes into contact with it, the storage box is destroyed, and the granular or powdered insulation material stored in the storage box is uniformly suspended on the oil surface of the low-temperature liquefied gas to provide interfacial insulation. A method for suppressing evaporation of low-temperature liquefied gas leaked inside a dike, characterized by forming a layer. 2) A suppressor used in a method for suppressing low-temperature liquefied gas leaking into a liquid barrier, characterized by assembling and fixing the box with fixing fittings made of a material that is brittle to low-temperature liquefied gas installed at the corners.
111 Insulation storage box.
JP2942782A 1982-02-25 1982-02-25 Method of restraining evaporation of low temperature liquefied gas leaking into liquid preventing embankment and housing for restraining heat insulating material used for said method Granted JPS58146800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2942782A JPS58146800A (en) 1982-02-25 1982-02-25 Method of restraining evaporation of low temperature liquefied gas leaking into liquid preventing embankment and housing for restraining heat insulating material used for said method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2942782A JPS58146800A (en) 1982-02-25 1982-02-25 Method of restraining evaporation of low temperature liquefied gas leaking into liquid preventing embankment and housing for restraining heat insulating material used for said method

Publications (2)

Publication Number Publication Date
JPS58146800A true JPS58146800A (en) 1983-09-01
JPS6123440B2 JPS6123440B2 (en) 1986-06-05

Family

ID=12275832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2942782A Granted JPS58146800A (en) 1982-02-25 1982-02-25 Method of restraining evaporation of low temperature liquefied gas leaking into liquid preventing embankment and housing for restraining heat insulating material used for said method

Country Status (1)

Country Link
JP (1) JPS58146800A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1447322A1 (en) * 2003-02-12 2004-08-18 Howaldtswerke-Deutsche Werft Ag Submarine with a tank containing a liquid gas
JP2008143295A (en) * 2006-12-08 2008-06-26 Zennikku Motor Service Kk Boarding bridge
JP2008143296A (en) * 2006-12-08 2008-06-26 Zennikku Motor Service Kk Boarding bridge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1447322A1 (en) * 2003-02-12 2004-08-18 Howaldtswerke-Deutsche Werft Ag Submarine with a tank containing a liquid gas
JP2008143295A (en) * 2006-12-08 2008-06-26 Zennikku Motor Service Kk Boarding bridge
JP2008143296A (en) * 2006-12-08 2008-06-26 Zennikku Motor Service Kk Boarding bridge

Also Published As

Publication number Publication date
JPS6123440B2 (en) 1986-06-05

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