JPS588900A - Low temperature tank having double safety - Google Patents
Low temperature tank having double safetyInfo
- Publication number
- JPS588900A JPS588900A JP10732481A JP10732481A JPS588900A JP S588900 A JPS588900 A JP S588900A JP 10732481 A JP10732481 A JP 10732481A JP 10732481 A JP10732481 A JP 10732481A JP S588900 A JPS588900 A JP S588900A
- Authority
- JP
- Japan
- Prior art keywords
- inner tank
- space
- tank
- gas
- pressure
- 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
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
- 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
- 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
- F17C2205/0326—Valves electrically actuated
-
- 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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/043—Pressure
- F17C2250/0434—Pressure difference
-
- 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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/06—Controlling or regulating of parameters as output values
- F17C2250/0605—Parameters
- F17C2250/0626—Pressure
-
- 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
- F17C2260/02—Improving properties related to fluid or fluid transfer
- F17C2260/021—Avoiding over pressurising
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
【発明の詳細な説明】
低温液体を貯蔵するタンクとしては、従来、低温液体を
貯蔵するタンク本体の外側にコンクリート製の止水壁を
構築し、万一タンク本体内の液が漏れ出ると止水壁の内
側に溜るようにした形式のものがあるが、最近では、上
記形式における止水壁をタンク本体に近づけて外槽側壁
とし、この外槽側壁の内側にシール板を設けて液密を保
つようにした形式のコンクリート式低温タンクが考えら
れている。[Detailed Description of the Invention] Conventionally, tanks for storing low-temperature liquids have been constructed with a water-stop wall made of concrete on the outside of the tank body for storing low-temperature liquids, and in the event that the liquid inside the tank body leaks, it can be stopped. There is a type that allows the water to collect inside the wall, but recently, the water stop wall of the above type is moved closer to the tank body to form the outer tank side wall, and a seal plate is installed inside this outer tank side wall to make the water tight. A type of concrete cryogenic tank that maintains the temperature is being considered.
本発明は、かかる最新式のコンクリート式低温タンクに
おいて内槽が破壊したときに内外槽間の圧力のバランス
１を保って内槽がこれ以上破壊することを防止するよう
にした二重安全性を有する低温タンクに関するものであ
る。The present invention provides double safety in such a state-of-the-art concrete type cryogenic tank, which maintains the pressure balance between the inner and outer tanks and prevents further destruction of the inner tank when the inner tank is destroyed. The present invention relates to a low-temperature tank having a
上記したコンクリート式低温タンクは、その全体の概略
を第１図に示す如く、基礎部コンクリート（１１上に外
槽コンクリート（２）を構築して外槽側板とし、該外槽
コンクリート（２）の内側に、内槽側板（４）、内槽底
板（５）、内槽屋根板（６）からなる内槽（３）を設置
し、又外槽コンクリート（２）の内側には、所要の厚さ
の層としたグラスウール、硬質ポリウレタンフォーム等
よりなる保冷材（７）を全周にわたり張ると共に、基礎
部コンクリート（１）の上面に保冷材（８）を設け、上
記保冷材（７）の内側及び上記内槽（３）よりも外側に
位置°゛する上記保冷材（８）の上面に、側部メンブレ
ン員と底部メンプレンａυからなるシール板（９）を張
り、且つ内槽（３）の内槽側板（５）と保冷材（８）と
の間に配した外槽底板α４０周辺部を、上記シール板（
９）の底部メンブレン０υと重合させてなる構成とし、
内槽（３）からの万一の液漏れに際してシール板（９）
で液密を保つようにしである。ａ３は内槽底板（５）と
外槽底板α擾との間に打設したならしコンクリート、０
４は外槽屋根板、α９は保冷材、Ｑｆ９は内槽アンカー
である。As shown in Figure 1, the concrete type low-temperature tank described above has an outer tank concrete (2) built on the foundation concrete (11) to serve as the outer tank side plate. An inner tank (3) consisting of an inner tank side plate (4), an inner tank bottom plate (5), and an inner tank roof plate (6) is installed inside, and the required thickness is installed inside the outer tank concrete (2). A cold insulating material (7) made of glass wool, hard polyurethane foam, etc. is stretched around the entire circumference, and a cold insulating material (8) is provided on the top surface of the foundation concrete (1). A seal plate (9) consisting of a side membrane member and a bottom membrane aυ is attached to the upper surface of the cold insulating material (8) located outside the inner tank (3), and The peripheral part of the outer tank bottom plate α40 placed between the inner tank side plate (5) and the cold insulator (8) is sealed with the seal plate (
9) The structure is made by polymerizing with the bottom membrane 0υ,
Seal plate (9) in case of liquid leakage from inner tank (3)
to keep it liquid-tight. a3 is leveled concrete poured between the inner tank bottom plate (5) and the outer tank bottom plate α, 0
4 is an outer tank roof plate, α9 is a cold insulation material, and Qf9 is an inner tank anchor.
このような内槽と外槽からなり外槽側に保冷材が設けで
ある低温タンクにおいては、内槽（３）の側板（４）が
破壊して内槽（３）内の低温流体が外槽の内側に漏出す
ると、内槽（３）の内側の圧力は低下する反面、外槽と
内槽間の圧力は増大するため、この内槽（３）の内外の
差圧に起因して内槽屋根板（６）が更に破壊するおそれ
がある。In such a low-temperature tank that consists of an inner tank and an outer tank, and a cold insulator is provided on the outer tank side, the side plate (4) of the inner tank (3) breaks and the low-temperature fluid in the inner tank (3) leaks to the outside. When leakage occurs inside the tank, the pressure inside the inner tank (3) decreases, but the pressure between the outer tank and the inner tank increases. There is a risk that the tank roof plate (6) will be further destroyed.
本発明は、上記の内槽が更に破壊することを防止しよう
としてなしたもので、内槽と外槽との間に空間を設は該
空間内で漏洩液をシールさせるようにした二重構造の低
温タンクにおいて、上記空間内のガス、ガス圧力、液位
等を検知する装置を設けると共に空間内と内槽内の差圧
を計測する差圧計を設け、該各検出器、差圧計、液位針
等からの信号により開閉させられるようにしだ流路にて
上記空間と内槽を連通させたことを特徴とするものであ
る。The present invention was made in an attempt to prevent the above-mentioned inner tank from further destruction, and has a double structure in which a space is provided between the inner tank and the outer tank to seal leakage liquid within the space. In the low-temperature tank of This is characterized in that the space and the inner tank are communicated with each other through a flow path that can be opened and closed by a signal from a position needle or the like.
以下、本発明の実施例を図面を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.
第２図に示す如く、第１図と同様に建設したタンクにお
いて、内槽（３）内に連通させたガス排出管αηと、内
Ｗ！Ｉ（３１の上部へ液及びガスを導入させる液供給管
αδ及びガス供給管Ｑ９とを、再液化設備■にそれぞれ
接続し、通常は、内槽（３１内の気体が排出管αηを通
り再液化設備■に送られた後、該再液化設備艶から液体
が供給管１１８まり内槽（３）内へ戻され、又ガスが供
給管四を通りそのまま戻されるようにして運転を行い、
内槽（３）内の圧力をコントロールするようにする・。As shown in FIG. 2, in a tank constructed in the same manner as in FIG. 1, a gas discharge pipe αη connected to the inner tank (3) and an inner W! The liquid supply pipe αδ and the gas supply pipe Q9, which introduce liquid and gas into the upper part of the inner tank (31), are connected to the reliquefaction equipment (■), and normally the gas in the inner tank (31 passes through the discharge pipe αη and is recycled). After being sent to the liquefaction equipment (1), the liquid from the re-liquefaction equipment is returned to the inner tank (3) in the supply pipe 118, and the gas is operated so as to be returned as it is through the supply pipe (4).
To control the pressure inside the inner tank (3).
本発明のタンクは、更に、Ｖ 、４ （３）内のガス圧
力を検知するガス圧力検知器Ｑυと、内槽（３）と外槽
内面のシール板（９）との間の空間（Ｓ）のガス圧力を
検知するガス圧力検知器のと、空間（Ｓｌ内のガスを検
知するガス検知器（ハ）、液位針（至）を、それぞれ設
けると共に、該空間（Ｓ）内のガス圧力と内槽（３）内
のガス圧力との差を計測する差圧計Ｃ１４）を設け、且
つ空間（Ｓｌ内のガスを内槽（３）内へ導いて内槽（３
）内と内外槽間（空間（Ｓ））の圧力のバランスが図れ
るようにするため、空間（Ｓ）内に連通させたガス排出
管（ハ）を前記ガス排出管αＤに接続して空間（Ｓ）内
のガスが内槽（３）内へ供給されるようにする。The tank of the present invention further includes a gas pressure detector Qυ that detects the gas pressure in V,4 (3), and a space ( A gas pressure detector to detect the gas pressure in the space (S), a gas detector (c) to detect the gas in the space (S), and a liquid level needle (to) are provided, respectively, and A differential pressure gauge C14) is provided to measure the difference between the gas pressure and the gas pressure in the inner tank (3), and the gas in the space (Sl is guided into the inner tank (3) to
) and between the inner and outer tanks (space (S)), a gas exhaust pipe (c) communicated with the space (S) is connected to the gas exhaust pipe αD to balance the pressure inside the space (S). Gas in S) is supplied to the inner tank (3).
又、ガス排出管０７＋と（ハ）との接続点よりも下流側
の途中には分岐管（至）を接続して、フレアスタック翰
を該分岐管（ホ）に連通させ、空間（Ｓ）内のガス圧が
犬で、内槽（３）と空間（Ｓ）との連通で逃がし切れな
い非常の場合に該フレアスタック（５）を経てガスを外
部へ逃がし得るようにし、上記系統が適正に作動するよ
うに、ガス排出管（１７１（ハ）、分岐管（ハ）の途中
に適宜電磁弁＠］１υを取り付け、電磁弁唱Ｉυには圧
力検出器（２υを、電磁弁（至）Ｏυには圧力検出器翰
、ガス検知器Ｉ２国及び差圧計＠、液位針（至）を、そ
れぞれ連結し、各電磁弁の開閉により、内槽内のガスが
液となって戻される通常の運転のほかに、空間（Ｓ）内
のガスを内槽（３）内へ導入させる運転ができるように
する。In addition, a branch pipe (to) is connected to the middle of the downstream side of the connection point between the gas exhaust pipe 07+ and (c), and the flare stack holder is communicated with the branch pipe (e), and the space (S) In case of an emergency where the gas pressure inside is too high and cannot be released through the communication between the inner tank (3) and the space (S), the gas can be released to the outside through the flare stack (5), and the above system is properly configured. In order to operate the gas discharge pipe (171 (c), the appropriate solenoid valve @) 1υ is installed in the middle of the branch pipe (c), and the solenoid valve Iυ is equipped with a pressure detector (2υ), and the solenoid valve (to) is installed in the solenoid valve Iυ. A pressure sensor, a gas detector I2, a differential pressure gauge @, and a liquid level needle (to) are connected to Oυ, and the gas in the inner tank is returned as a liquid by opening and closing each solenoid valve. In addition to this operation, the gas in the space (S) can be introduced into the inner tank (3).
Ｃ３３は熱交換器、（至）（ロ）は電磁弁、Ｇ！９は底
部ヒータ、０７）は安全弁である。C33 is a heat exchanger, (To) (B) is a solenoid valve, G! 9 is a bottom heater, and 07) is a safety valve.
上記構成としであるので、通常は、弁＠（ハ）を開けて
内槽（３）内のガスを再液化設備（１）に導き、ここで
液化させて液供給管αＳを経て内ｍ （３１内に戻すよ
うな運転を行い、内槽（３）内の圧力のコントロールを
行う−０この通常の運転時に、内槽（３）内の圧力が異
常に高くなると、まず安全弁０ηが作動し、圧力の増加
に追従できないと圧力検出器Ｃυからの信号によって、
増加した圧力骨だけフレアスタック（資）を経て放出さ
せる。これにより通常運転におけるタンクの安全運転を
行うことができる。With the above configuration, normally, the valve @(c) is opened to guide the gas in the inner tank (3) to the reliquefaction equipment (1), where it is liquefied and passed through the liquid supply pipe αS to the inner tank (m). During normal operation, if the pressure in the inner tank (3) becomes abnormally high, the safety valve 0η is activated. , if the increase in pressure cannot be followed, the signal from the pressure detector Cυ will cause
Only the increased pressure bone is released through the flare stack. This allows safe operation of the tank during normal operation.
上記の通常運転において、何等かの、原因にまり内槽（
３）の内層側板（４）が破壊して貯蔵液の漏出がはじま
ると、漏出液は外槽のシール板（９）でシ−ルされて空
間（Ｓ）に溜められるため、内槽（３）内の圧力は低下
する反面、空間（Ｓ）内の圧力が上昇し、内情（３）に
対し外圧が作用する状態になる。During the above normal operation, the inner tank (
When the inner layer side plate (4) of 3) breaks and the stored liquid begins to leak, the leaked liquid is sealed by the seal plate (9) of the outer tank and collected in the space (S), so that the inner tank (3) ) decreases, while the pressure within the space (S) increases, resulting in a state in which external pressure acts on the internal condition (3).
このような圧力差のまま放置しておけば、内槽屋根板（
６）が外圧に耐え得なくなって破壊するおそれがある。If this pressure difference is left as it is, the inner tank roof plate (
6) may not be able to withstand external pressure and may break.
そこで本発明では、空間（Ｓ）の圧力、ガスをそれぞれ
の検知器（ハ）、（至）にて検出するようにすると共に
、内槽（３）内の圧力と空間（Ｓ）の圧力との差圧を差
圧計０４にて検出するようにし、空間（Ｓ）内の圧力が
内槽（３）内の圧力よりも高くなったときには、各検知
器（ハ）（ハ）や差圧計ｒ２４からの信号により電磁弁
（７）が開放させられて内槽（３）と空間（Ｓ）とが連
通させられる。したがって、空間（Ｓ）内のガスが排出
管（ハ）、Ｑ７１を経て再液化設備■に導かれ、更に内
槽（３）内へと戻すように運転が行われる。これにより
空間（Ｓｌ内の圧力と内槽（３）内の圧力とがバランス
され、内槽屋根板（６）の破壊を未然に防止することが
できる。Therefore, in the present invention, the pressure and gas in the space (S) are detected by the respective detectors (c) and (to), and the pressure in the inner tank (3) and the pressure in the space (S) are detected. The differential pressure is detected by the differential pressure gauge 04, and when the pressure in the space (S) becomes higher than the pressure in the inner tank (3), each detector (c) (c) or the differential pressure gauge r24 The solenoid valve (7) is opened by a signal from the inner tank (3) and the space (S) is communicated with each other. Therefore, the operation is performed so that the gas in the space (S) is led to the reliquefaction equipment (3) via the discharge pipe (c) and Q71, and further returned to the inner tank (3). As a result, the pressure in the space (Sl) and the pressure in the inner tank (3) are balanced, and destruction of the inner tank roof plate (6) can be prevented.
上記内槽（３）と空間（Ｓ）とを連通させて空間（Ｓ）
内の圧力を内槽（３）に戻す運転では内槽屋根板（６）
の破壊防止に間に合わないような圧力差が生じている場
合には、電磁弁６υ゛が開放させられてフレアスタック
（５）を経て空間（Ｓ）内の圧力を外部へ逃がすように
運転を行う。これにより非常の場合でも内槽屋根板（６
）に作用する外圧を直ちに逃がすことができて該屋根板
（６）の破壊を防止することができる。The space (S) is created by communicating the inner tank (3) with the space (S).
In the operation where the internal pressure is returned to the inner tank (3), the inner tank roof plate (6)
If there is a pressure difference that is too large to prevent destruction in time, the solenoid valve 6υ is opened to release the pressure in the space (S) to the outside through the flare stack (5). . This means that even in an emergency, the inner tank roof plate (6
) can be immediately released to prevent the roof panel (6) from being destroyed.
内槽（３）内と空間（Ｓ）内の圧力がバランスされて来
ると、差圧がなくなって電磁弁渕が閉じられ、通常の運
転に切り換えられる。When the pressures in the inner tank (3) and in the space (S) are balanced, the differential pressure disappears, the solenoid valve edge is closed, and normal operation is resumed.
したがって、本発明においては、電磁弁（至）と電磁弁
００とは差圧計＠や検知器（ハ）（ハ）の値の大きさに
より開閉の時期が異なるように設定させである。１
尚、タンクの通常運転において、内槽（３〕内のガス圧
力が低下するような場合には圧力検知器Ｑυで検出する
ことができるが、このときの値により熱交換器Ｃ３３を
もつバイパス管の途中の電磁弁Ｃ（ＩＣＭＩを制御する
ようにすれば、貯蔵゛液体を気化させて内槽（３）内に
戻すことができて、内槽（３）内の圧力をコントロール
させることができる。Therefore, in the present invention, the solenoid valves (to) and solenoid valves 00 are set to open and close at different times depending on the magnitude of the value of the differential pressure gauge @ and the detectors (c) and (c). 1 In addition, during normal operation of the tank, if the gas pressure in the inner tank (3) decreases, it can be detected by the pressure detector Qυ, but depending on the value at this time, the bypass with heat exchanger C33 If the solenoid valve C (ICMI) in the middle of the pipe is controlled, the stored liquid can be vaporized and returned to the inner tank (3), and the pressure inside the inner tank (3) can be controlled. can.
又、本発明は、図示した構成のものに限定されるもので
はな（、たとえば、外槽をコンクリート式としたものに
代え外槽を金属としたものでよいこと、その他車発明の
要旨を逸脱しない範囲内で変更実施できることは当然で
ある。Furthermore, the present invention is not limited to the configuration shown in the drawings (for example, the outer tank may be made of metal instead of the concrete type, and other aspects departing from the gist of the invention) It goes without saying that changes can be made within the scope.
以上述べた如（、本発明の低温夕／りによれば、内槽と
外槽との間の空間のガス、ガス圧力、内槽内のガス圧力
との差圧等により空間と内槽とを連通させてガスの流通
が行われるようにし、万一の液漏れに起因して上記内槽
内よりも空間内の圧力が高くなる事態を防止するように
しであるので、内槽が破壊等して液漏れがあった場合に
次に生じ易いタンク屋根板の破壊を未然に防止すること
ができる、という優れた効果を奏し得る。As described above (according to the low-temperature bath of the present invention, the space and the inner tank are This is to ensure that the gas is in communication with the tank, and to prevent the pressure in the space from becoming higher than that in the inner tank due to liquid leakage, so that the inner tank will not be destroyed or damaged. This has the excellent effect of preventing the tank roof plate from being destroyed, which is likely to occur next time there is a liquid leak.
第１図は本発明の対象であるコンクＩＪ −ト式低温タ
ンクの断面図、第２図は本発明のタンクの概略図である
。
（２）・・・外槽コンクリート、（３）・・・内槽、（
力（８）・・・保冷材、（９）・・・シール板、（１７
１（ハ）・・・ガス排出管、α８・・・液供給管、αト
・・ガス供給管、翰・・・再液化設備、Ｃａ１ｌ□□□
・・・ガス圧力検知器、（ハ）・・・ガス検知器、＠・
・・差圧計、勾・・・フレアスタック。
特許出願人
石川島播磨重工業株式会社
特許出願人代理人FIG. 1 is a sectional view of a concrete IJ-type low temperature tank, which is the subject of the present invention, and FIG. 2 is a schematic diagram of the tank of the present invention. (2)...Outer tank concrete, (3)...Inner tank, (
Force (8)... Cold insulation material, (9)... Seal plate, (17
1 (c)...Gas discharge pipe, α8...Liquid supply pipe, αT...Gas supply pipe, Kan...Reliquefaction equipment, Ca1l□□□
...Gas pressure detector, (c)...Gas detector, @・
...Differential pressure gauge, slope...Flare stack. Patent applicant Ishikawajima Harima Heavy Industries Co., Ltd. Patent applicant agent
Claims (1)
貯められるようにした二重構造の低温タンクにおいて、
上記空間内のガス、ガス圧力、液位等により該空間内へ
のガスまたは液の漏洩を検知する装置を設けると共に該
装置により発せられる漏洩のあったことの信号により開
閉させられるようにしだ流路にてＬ記空間と内槽を連通
させたことを特徴とする二重安全性を有する低温タンク
。1) In a double-structured low-temperature tank that has a space between the inner tank and the outer tank so that leaked liquid can be stored in the space,
A device is provided to detect leakage of gas or liquid into the space based on the gas, gas pressure, liquid level, etc. in the space, and a leakage system is installed so that it can be opened or closed by a signal issued by the device indicating that there has been a leak. A low-temperature tank having double safety, characterized in that the L space and the inner tank are communicated through a road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10732481A JPS588900A (en) | 1981-07-09 | 1981-07-09 | Low temperature tank having double safety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10732481A JPS588900A (en) | 1981-07-09 | 1981-07-09 | Low temperature tank having double safety |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS588900A true JPS588900A (en) | 1983-01-19 |
| JPH028200B2 JPH028200B2 (en) | 1990-02-22 |
Family
ID=14456168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10732481A Granted JPS588900A (en) | 1981-07-09 | 1981-07-09 | Low temperature tank having double safety |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS588900A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6054900U (en) * | 1983-09-22 | 1985-04-17 | 石井 宏治 | cryogenic tank |
| JPS6095299U (en) * | 1983-12-07 | 1985-06-28 | 石川島播磨重工業株式会社 | Liquefied gas low temperature storage tank |
| JPS61166297U (en) * | 1985-04-04 | 1986-10-15 | ||
| WO2006062030A1 (en) * | 2004-12-10 | 2006-06-15 | The Tokyo Electric Power Company, Incorporated | Device and method for controlling internal pressure of hermetic structure |
| WO2012053704A1 (en) * | 2010-10-22 | 2012-04-26 | 대우조선해양 주식회사 | Storage container for liquefied natural gas |
| US20130219955A1 (en) * | 2010-10-15 | 2013-08-29 | Daewoo Shipbuilding & Marine Engineering Co., Ltd. | Method for producing pressurized liquefied natural gas, and production system used in same |
| WO2023182366A1 (en) * | 2022-03-23 | 2023-09-28 | 川崎重工業株式会社 | Cool-down method for liquefied gas storage tank |
| WO2023182365A1 (en) * | 2022-03-23 | 2023-09-28 | 川崎重工業株式会社 | Cool-down method for liquefied gas storage tank |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5392921A (en) * | 1977-01-25 | 1978-08-15 | Kawasaki Heavy Ind Ltd | Double-shell low-temperature tank |
-
1981
- 1981-07-09 JP JP10732481A patent/JPS588900A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5392921A (en) * | 1977-01-25 | 1978-08-15 | Kawasaki Heavy Ind Ltd | Double-shell low-temperature tank |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6054900U (en) * | 1983-09-22 | 1985-04-17 | 石井 宏治 | cryogenic tank |
| JPH0338560Y2 (en) * | 1983-09-22 | 1991-08-14 | ||
| JPS6095299U (en) * | 1983-12-07 | 1985-06-28 | 石川島播磨重工業株式会社 | Liquefied gas low temperature storage tank |
| JPS61166297U (en) * | 1985-04-04 | 1986-10-15 | ||
| WO2006062030A1 (en) * | 2004-12-10 | 2006-06-15 | The Tokyo Electric Power Company, Incorporated | Device and method for controlling internal pressure of hermetic structure |
| US20130219955A1 (en) * | 2010-10-15 | 2013-08-29 | Daewoo Shipbuilding & Marine Engineering Co., Ltd. | Method for producing pressurized liquefied natural gas, and production system used in same |
| WO2012053704A1 (en) * | 2010-10-22 | 2012-04-26 | 대우조선해양 주식회사 | Storage container for liquefied natural gas |
| EP2444711A3 (en) * | 2010-10-22 | 2017-12-27 | Daewoo Shipbuilding & Marine Engineering Co., Ltd | Liquefied natural gas storage container |
| WO2023182366A1 (en) * | 2022-03-23 | 2023-09-28 | 川崎重工業株式会社 | Cool-down method for liquefied gas storage tank |
| WO2023182365A1 (en) * | 2022-03-23 | 2023-09-28 | 川崎重工業株式会社 | Cool-down method for liquefied gas storage tank |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH028200B2 (en) | 1990-02-22 |
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