JPH08142976A - Freestanding square tank for liquid carrier - Google Patents
Freestanding square tank for liquid carrierInfo
- Publication number
- JPH08142976A JPH08142976A JP28226894A JP28226894A JPH08142976A JP H08142976 A JPH08142976 A JP H08142976A JP 28226894 A JP28226894 A JP 28226894A JP 28226894 A JP28226894 A JP 28226894A JP H08142976 A JPH08142976 A JP H08142976A
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- insulating material
- self
- tank
- support block
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 63
- 239000011810 insulating material Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 5
- 230000005855 radiation Effects 0.000 claims abstract description 4
- 239000006260 foam Substances 0.000 claims abstract description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 38
- 238000009413 insulation Methods 0.000 description 14
- 239000007789 gas Substances 0.000 description 9
- 239000012528 membrane Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 239000003949 liquefied natural gas Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 102200068707 rs281865211 Human genes 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Laminated Bodies (AREA)
Abstract
(57)【要約】
【目的】 簡単な構造で、高い保冷性能を得ることがで
きる液体運搬船用自立角型タンクを提供することを目的
とする。
【構成】 低温液体が収納される容器本体２１と、この
容器本体の外面に配置された一定以上の圧縮強度を有す
る断熱材２２と、この断熱材の外面を覆いかつ内外の気
密性を保って配置された膜体２３とを備える。なお、膜
体よりも内側に位置して設けられた第１の支持ブロック
２４と、船殻側の第１の支持ブロックに対応する位置に
設けられ、第１の支持ブロックを膜体を介して支持する
第２の支持ブロック２５とが設けられることが好まし
い。また、断熱材が多数の独立気泡の発泡体から構成さ
れる材料からなることが好ましい。さらに、断熱材の内
部に熱輻射板が埋設されていることが好ましい。
(57) [Abstract] [Purpose] An object is to provide a self-supporting square tank for a liquid carrier, which has a simple structure and is capable of obtaining high cooling performance. [Structure] A container body 21 in which a low-temperature liquid is stored, a heat insulating material 22 arranged on the outer surface of the container body and having a compressive strength of a certain level or more, and covering the outer surface of the heat insulating material and maintaining airtightness inside and outside. And the film body 23 arranged. The first support block 24 provided inside the film body and the first support block on the hull side are provided at positions corresponding to the first support block 24. A second support block 25 for supporting is preferably provided. Further, the heat insulating material is preferably made of a material composed of a large number of closed-cell foams. Further, it is preferable that a heat radiation plate is embedded inside the heat insulating material.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、船殻の中空部に搭載さ
れ、その内部に液体を収納する液体運搬船用自立角型タ
ンク、特に内部に収納された低温液体の保冷効果を向上
させることができる液体運搬船用自立角型タンクに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-supporting square tank for a liquid carrier, which is mounted in a hollow portion of a hull and stores a liquid therein, and particularly to improve the cold insulation effect of a low temperature liquid stored inside. The present invention relates to a self-supporting rectangular tank for a liquid carrier that can perform.
【０００２】[0002]
【従来の技術】液体運搬船に関連する技術として、特開
平２−２４９７９６号公報（液体運搬船）、特開平４−
８９９９号公報（液体運搬船用ガスタンクの支持装
置）、特開平４−９２７９４号公報（液体運搬船用ガス
タンクの支持装置）、特開平４−１４３４８７号公報
（船の二重殻構造物及びその構築方法）等が提案されて
いる。2. Description of the Related Art As a technique related to a liquid carrier, Japanese Patent Laid-Open Nos. 2-249796 (Liquid carrier) and 4-
No. 8999 (Liquid carrier gas tank support device), JP-A-4-92794 (Liquid carrier gas tank support device), JP-A-4-143487 (ship double shell structure and method for constructing the same). Etc. have been proposed.
【０００３】これらの技術を適用した液体運搬船では、
図４〜７に示すように、船体（船殻）１を外側殻１Ａと
内側殻１Ｂとからなる二重構造とし、船体１の中空部２
に搭載されるタンク３を長方体（角型）とするとともに
船体１（内側殻１Ｂ）から独立させた自立構造として、
甲板の平坦化、液化ガス等の液体の収納容積拡大、座礁
等の事故時の安全性の確保、ＬＮＧ（液化天然ガス）の
運搬時の信頼性向上等の優れた特長をもたせることがで
きるものと期待される。In a liquid carrier to which these techniques are applied,
As shown in FIGS. 4 to 7, a hull (hull) 1 has a double structure including an outer shell 1A and an inner shell 1B, and a hollow portion 2 of the hull 1
As a self-supporting structure in which the tank 3 mounted on the vehicle is a rectangular body (rectangular shape) and is independent from the hull 1 (inner shell 1B),
It has excellent features such as flattened deck, expanded storage capacity for liquids such as liquefied gas, ensuring safety during accidents such as grounding, and improved reliability during LNG (liquefied natural gas) transportation. Is expected.
【０００４】図６に示すように、内側殻１Ｂとタンク３
との間には、タンク３の重量を複数箇所において支持す
るための荷重支持台４と、タンク３の前後移動を抑制す
るための前後移動抑制用の支持装置（図示せず）と、タ
ンク３の左右移動を抑制するための左右移動抑制用の支
持装置６とが配される。As shown in FIG. 6, the inner shell 1B and the tank 3
Between the load supporting base 4 for supporting the weight of the tank 3 at a plurality of points, a supporting device (not shown) for suppressing the longitudinal movement of the tank 3, and the tank 3 And a support device 6 for suppressing left and right movement for suppressing the left and right movement of the.
【０００５】これらの前後移動抑制用の支持装置及び左
右移動抑制用の支持装置６は、内部殻１Ｂの天井部分と
タンク３の頂部との間、内部殻１Ｂの底部内表面とタン
ク３の底部との間にそれぞれ複数配される。そして、前
後移動抑制用の支持装置により、内側殻１Ｂとタンク３
との間の前後方向の相対移動を拘束するとともに、左右
方向の相対移動を許容するように設定される。また、左
右移動抑制用の支持装置６により、内側殻１Ｂとタンク
３との間の左右方向の相対移動を拘束するとともに、前
後方向の相対移動を許容するように設定される。The supporting device for suppressing the forward / backward movement and the supporting device 6 for suppressing the lateral movement are provided between the ceiling portion of the inner shell 1B and the top of the tank 3, the inner surface of the bottom of the inner shell 1B and the bottom of the tank 3. And a plurality are arranged respectively. Then, the inner shell 1B and the tank 3 are supported by the supporting device for suppressing the forward and backward movement.
It is set so as to restrain the relative movement in the front-rear direction between and and allow the relative movement in the left-right direction. Further, the support device 6 for suppressing the lateral movement is set so as to restrain the relative movement between the inner shell 1B and the tank 3 in the lateral direction and allow the relative movement in the longitudinal direction.
【０００６】また、タンク３は、図６に示すように、内
壁３ａとこの内壁３ａから所定距離離間して配置された
外壁３ｂとから構成され、これら内壁３ａと外壁３ｂと
の間の空間は真空とされ、タンク３内に収納された低温
液体（例えば、ＬＮＧ）の保冷性能を高めている。ま
た、前記荷重支持台４に対応する位置の外壁３ｂは切り
欠かれており、荷重支持台４は内壁３ａの外面に接して
タンク３及び収納された液体の重量を支持するようにな
っている。タンク３の外壁３ｂは内壁３ａとの間に発生
させられる真空状態に耐え得るような強度を備えている
とともに、前記外壁３ｂの、切り欠かれて前記荷重支持
台４と接触する部位には、シール部材を備えた複雑な気
密機構（図示せず）が配置されている。Further, as shown in FIG. 6, the tank 3 is composed of an inner wall 3a and an outer wall 3b arranged at a predetermined distance from the inner wall 3a, and the space between the inner wall 3a and the outer wall 3b is A low temperature liquid (for example, LNG) stored in the tank 3 is evacuated to enhance the cold insulation performance. Further, the outer wall 3b at a position corresponding to the load support base 4 is notched, and the load support base 4 is in contact with the outer surface of the inner wall 3a to support the weight of the tank 3 and the stored liquid. . The outer wall 3b of the tank 3 is strong enough to withstand a vacuum state generated between the outer wall 3b and the inner wall 3a, and the outer wall 3b is cut out and comes into contact with the load support base 4. A complex airtight mechanism (not shown) with a sealing member is arranged.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、従来の
液体運搬船用自立角型タンク３では、タンク３を内壁３
ａ及び外壁３ｂからなる二重構造とし、これらの内外壁
３ａ，３ｂの間の空間を真空とするようにしているの
で、タンク３の外壁３ｂを外面に作用する大気圧に耐え
得るように相当の強度としなければならず、製作工期や
コストが増大する。However, in the conventional self-supporting rectangular tank 3 for a liquid carrier, the tank 3 has the inner wall 3 formed therein.
The outer wall 3b of the tank 3 has a double structure consisting of a and the outer wall 3b, and the space between the inner and outer walls 3a and 3b is made to be a vacuum, so that the outer wall 3b of the tank 3 can withstand the atmospheric pressure acting on the outer surface. Therefore, the manufacturing period and cost are increased.
【０００８】さらに、タンク３の外壁３ｂと荷重支持台
４との間に複雑な気密機構を設けるようにしているの
で、コストが増大するとともに、完全なる気密ができ
ず、この結果外壁３ｂと内壁３ａとの間の真空度をある
程度以上高めることができず、保冷効果が不完全となる
ことがある。Further, since a complicated airtight mechanism is provided between the outer wall 3b of the tank 3 and the load supporting base 4, the cost is increased and the airtightness cannot be completely achieved. As a result, the outer wall 3b and the inner wall are not formed. The degree of vacuum between 3a and 3a cannot be increased to some extent, and the cold insulating effect may be incomplete.
【０００９】本発明は、上記事情に鑑みてなされたもの
で、簡単な構造で、高い保冷性能を得ることができる液
体運搬船用自立角型タンクを提供することを目的とす
る。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a self-standing square tank for a liquid carrier, which has a simple structure and can obtain high cold insulation performance.
【００１０】[0010]
【課題を解決するための手段】本発明の請求項１記載の
液体運搬用自立角型タンクは、船殻の中空部に搭載され
液体を収納する液体運搬用自立角型タンクであって、低
温液体が収納される容器本体と、この容器本体の外面に
配置された一定以上の圧縮強度を有する断熱材と、この
断熱材の外面を覆いかつ内外の気密性を保って配置され
た膜体とを備えることを特徴とする。According to a first aspect of the present invention, there is provided a self-standing square tank for transporting liquid, which is mounted in a hollow portion of a hull for storing a liquid and has a low temperature. A container main body in which a liquid is stored, a heat insulating material having a compressive strength of a certain level or more arranged on the outer surface of the container main body, and a film body arranged to cover the outer surface of the heat insulating material and to maintain airtightness inside and outside. It is characterized by including.
【００１１】本発明の請求項２記載の液体運搬船用自立
角型タンクは、請求項１記載の液体運搬船用自立角型タ
ンクにおいて、前記膜体よりも内側に位置して設けられ
た第１の支持ブロックと、前記船殻側の前記第１の支持
ブロックに対応する位置に設けられ、前記第１の支持ブ
ロックを膜体を介して支持する第２の支持ブロックとが
設けられていることを特徴とする。According to a second aspect of the present invention, there is provided a self-supporting square tank for a liquid carrier, wherein the self-standing square tank for a liquid carrier according to the first aspect is provided inside the film body. A support block and a second support block that is provided at a position corresponding to the first support block on the hull side and that supports the first support block via a film body are provided. Characterize.
【００１２】本発明の請求項３記載の液体運搬船用自立
角型タンクは、請求項１又は２記載の液体運搬船用自立
角型タンクにおいて、前記断熱材が多数の独立気泡の発
泡体から構成される材料からなることを特徴とする。According to a third aspect of the present invention, there is provided a self-supporting rectangular tank for a liquid carrier, wherein the heat insulating material is composed of a large number of closed-cell foams. It is characterized in that it is made of a material.
【００１３】本発明の請求項４記載の液体運搬船用自立
角型タンクは、請求項１〜３のいずれかに記載の液体運
搬用自立角型タンクにおいて、前記断熱材の内部に熱輻
射板が埋設されていることを特徴とする。According to a fourth aspect of the present invention, there is provided a self-supporting rectangular tank for a liquid carrier, wherein the heat-radiating plate is provided inside the heat insulating material. It is characterized by being buried.
【００１４】[0014]
【作用】本発明の請求項１記載の液体運搬船用自立角型
タンクによれば、容器本体内に低温液体を収納すると、
容器本体と膜体との間の気体が冷却されて凝縮して容器
本体と膜体との間の真空度が高められ、低温液体の保冷
性能を向上させることができる。しかも、容器本体と膜
体との間には一定以上の圧縮強度を有しているので、膜
体自体の強度が大きくなくても、真空度の上昇に起因し
て膜体に大気圧が作用しても、容器本体と膜体との間隔
を保持することができ、保冷性能を高く維持できる。According to the self-standing rectangular tank for a liquid carrier according to claim 1 of the present invention, when a low temperature liquid is stored in the container body,
The gas between the container body and the film body is cooled and condensed to increase the degree of vacuum between the container body and the film body, thereby improving the cold insulation performance of the low temperature liquid. Moreover, since the container body and the film body have a certain degree of compressive strength or more, even if the film body itself is not strong, the atmospheric pressure acts on the film body due to the increase in the degree of vacuum. Even in this case, the space between the container body and the membrane can be maintained, and the cold insulation performance can be maintained high.
【００１５】本発明の請求項２記載の液体運搬船用自立
角型タンクによれば、膜体を挟むように第１及び第２の
支持ブロックが配置されて膜体が連続しているので、こ
の部分で気密性の低下することがないとともに、容器本
体内に低温液体を収納して容器本体等が収縮した際にお
いても、第１及び第２のブロックが膜体部分を滑り面と
して相対移動し、この結果、膜体に過大な応力が発生す
ることもない。According to the self-supporting rectangular tank for a liquid carrier of the present invention, since the first and second support blocks are arranged so as to sandwich the membrane, the membrane is continuous. The airtightness does not deteriorate in the part, and even when the container body etc. contracts by storing the low temperature liquid in the container body, the first and second blocks relatively move with the film body part as a sliding surface. As a result, no excessive stress is generated in the film body.
【００１６】本発明の請求項３記載の液体運搬船用自立
角型タンクによれば、断熱材には多数の独立気泡が埋設
されているので、容器本体内の低温液体により冷却され
て凝縮した気体が各独立気泡内に残留して移動すること
がなく、したがって、物質移動に伴う外部との熱の授受
がなく、保冷性能を高く維持することができる。According to the self-standing square tank for a liquid carrier according to claim 3 of the present invention, since a large number of closed cells are embedded in the heat insulating material, the gas condensed by being cooled by the low temperature liquid in the container body. Does not remain and move in each independent bubble, and therefore heat is not transferred to and from the outside due to mass transfer, and the cold insulation performance can be maintained high.
【００１７】本発明の請求項４記載の液体運搬船用自立
角型タンクによれば、断熱材の内部に埋設された熱輻射
板により、さらに保冷性能を高めることができる。According to the self-standing square tank for a liquid carrier of the fourth aspect of the present invention, the heat radiation plate embedded in the heat insulating material can further enhance the cold insulation performance.
【００１８】[0018]
【実施例】以下に、図面を参照して、本発明の一実施例
の液体運搬船用自立角型タンクについて説明する。な
お、前記従来例と同様な構成要素には同一符号を付して
説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A self-standing square tank for a liquid carrier according to one embodiment of the present invention will be described below with reference to the drawings. The same components as those of the conventional example will be described with the same reference numerals.
【００１９】図１に示すように、本実施例の液体運搬用
自立角型タンク２０は、低温液体が収納される容器本体
２１と、この容器本体２１の外面に配置された一定以上
の圧縮強度を有する断熱材２２と、この断熱材２２の外
面を覆いかつ内外の気密性を保って配置された膜体２３
とを備える。また、容器本体２１と膜体２３との間は、
圧力が１０-2Ｔｏｒｒ程度に粗引きされている。As shown in FIG. 1, a self-supporting rectangular tank 20 for transporting liquid according to this embodiment has a container body 21 in which a low temperature liquid is stored and a compressive strength of a certain level or more arranged on the outer surface of the container body 21. And a film body 23 that covers the outer surface of the heat insulating material 22 and is arranged to keep airtightness inside and outside
With. In addition, between the container body 21 and the film body 23,
The pressure is roughly pulled to about 10 -2 Torr.
【００２０】図３に示すように、前記断熱材２２の一部
は分断されており、この分断部には前記膜体２３よりも
内側に位置する第１の支持ブロック２４が配置されてい
る。さらに、船殻１の内側殻１Ｂの、前記第１の支持ブ
ロック２４に対応する位置には、第２の支持ブロック２
５が設けられている。前記第１の支持ブロック２４は膜
体２３を介して第２の支持ブロック２５により支持され
ている。図中２６，２７は、第１又は第２の支持ブロッ
ク２４，２５を移動を拘束する止め材である。このよう
にして、船殻１の内側殻１Ｂと膜体２３との間には間隙
２８が形成されており、この間隙２８には、窒素ガスや
空気等の気体が充填されている。As shown in FIG. 3, a part of the heat insulating material 22 is divided, and a first support block 24 located inside the film body 23 is arranged in this divided portion. Further, the second support block 2 is provided at a position of the inner shell 1B of the hull 1 corresponding to the first support block 24.
5 are provided. The first support block 24 is supported by the second support block 25 via the film body 23. In the figure, 26 and 27 are stoppers for restraining the movement of the first or second support blocks 24 and 25. In this way, a gap 28 is formed between the inner shell 1B of the hull 1 and the film body 23, and the gap 28 is filled with a gas such as nitrogen gas or air.
【００２１】前記断熱材２２としては、例えば、多数の
独立気泡が埋設されたポリウレタン発泡体が用いられ、
その圧縮強度は１０１ｋＰａ以上となっている。前記膜
体２３としては、金属シートや合成樹脂シート等の可撓
性を有する薄膜が用いられる。As the heat insulating material 22, for example, a polyurethane foam in which a large number of closed cells are embedded is used.
Its compressive strength is 101 kPa or more. As the film body 23, a flexible thin film such as a metal sheet or a synthetic resin sheet is used.
【００２２】次に、本実施例の液体運搬用自立角型タン
ク２０の作用について説明する。Next, the operation of the self-supporting rectangular tank 20 for carrying liquid according to this embodiment will be described.
【００２３】タンク２０の容器本体２１内にＬＮＧ等の
低温液体を収納すると、間隙２８内の窒素ガス又は空気
が凝縮する。この結果、容器本体２１の外壁付近の断熱
材２２の独立気泡中の気体が凝縮して液化して、容器本
体２１と膜体２３とに囲まれた領域が１０-3Ｔｏｒｒ程
度の真空状態となる。この領域は膜体２３によって気密
状態とされているので、間隙２８内の窒素ガスや空気は
膜体２３より内側の領域内に侵入することがなく、高い
真空度が維持される。When a low temperature liquid such as LNG is stored in the container body 21 of the tank 20, the nitrogen gas or air in the gap 28 is condensed. As a result, the gas in the closed cells of the heat insulating material 22 near the outer wall of the container body 21 is condensed and liquefied, and the region surrounded by the container body 21 and the film body 23 becomes a vacuum state of about 10 −3 Torr. Become. Since this region is made airtight by the film body 23, nitrogen gas and air in the gap 28 do not enter the region inside the film body 23, and a high degree of vacuum is maintained.
【００２４】このように、容器本体２１と膜体２３とに
より囲まれた領域内が真空状態となる結果、膜体２３に
は大気圧が作用するが、膜体２３と容器本体２１との間
には所定の圧縮強度を有する断熱材２２が配置されてい
るので、膜体２３は断熱材２２によって支持され、たと
え薄い可撓性を有する材料で構成されていても、座屈や
たわみが生ずることがなく、容器本体２１と膜体２３と
の間隔が保持される。As described above, as a result of the inside of the region surrounded by the container body 21 and the film body 23 being in a vacuum state, atmospheric pressure acts on the film body 23, but between the film body 23 and the container body 21. Since the heat insulating material 22 having a predetermined compressive strength is arranged in the film, the film body 23 is supported by the heat insulating material 22 and buckling or bending occurs even if it is made of a thin flexible material. The space between the container body 21 and the film body 23 is maintained.
【００２５】このように、容器本体２１と膜体２３との
間に真空層が配置される結果、断熱材２２による断熱効
果が非常に高まり、全体として高い保冷性能が得られ
る。As described above, as a result of disposing the vacuum layer between the container body 21 and the film body 23, the heat insulating effect of the heat insulating material 22 is greatly enhanced, and a high cold insulation performance is obtained as a whole.
【００２６】また、前記断熱材２２は多数の独立気泡が
埋設された例えばポリウレタン発泡体から構成されるの
で、各独立気泡中で凝縮して液化した気体は、各独立気
泡内に滞留して移動することがなく、したがって、物質
移動に伴う外部との熱の授受がない。この結果、高い保
冷性能を保持することができる。Further, since the heat insulating material 22 is composed of, for example, a polyurethane foam in which a large number of closed cells are buried, the gas condensed and liquefied in each closed cell stays in each closed cell and moves. Therefore, there is no exchange of heat with the outside due to mass transfer. As a result, high cold insulation performance can be maintained.
【００２７】また、膜体２３は、第１及び第２の支持ブ
ロック２４，２５の間においても連続しているので、高
い気密性を保持することができ、保冷性能の低下を招く
ことがない。Further, since the film body 23 is continuous between the first and second support blocks 24 and 25, high airtightness can be maintained and the cold insulation performance is not deteriorated. .
【００２８】このように、膜体２３を挟んで第１及び第
２の支持ブロック２４，２５が配置されているので、容
器本体２１内に低温液体を収納した際の収縮に伴って第
１及び第２の支持ブロック２４，２５に相対変位が生じ
ても、これらが膜体２３を滑り面として移動し、膜体２
３に過度の応力が発生することがない。As described above, since the first and second support blocks 24 and 25 are arranged with the film body 23 sandwiched between them, the first and second support blocks 24 and 25 are contracted when the cryogenic liquid is stored in the container body 21. Even if a relative displacement occurs in the second support blocks 24 and 25, they move using the film body 23 as a sliding surface, and
No excessive stress is generated in 3.
【００２９】また、容器本体２１と膜体２３との間を所
定の真空度にしておけば、容器本体２１内に低温液体を
収納するだけで、これらの間の気体の凝縮により高い真
空状態とすることができ、特別な高真空ポンプを設ける
必要がなく、装置の構成を簡単なものとすることがで
き、故障等の殆ど生じない高い信頼性を得ることができ
る。If a predetermined degree of vacuum is provided between the container body 21 and the film body 23, only the low temperature liquid is stored in the container body 21 and a high vacuum state is obtained due to the condensation of the gas between them. Therefore, it is not necessary to provide a special high vacuum pump, the structure of the device can be simplified, and high reliability in which failure or the like hardly occurs can be obtained.
【００３０】船殻１の内側殻１Ｂと膜体２３との間の間
隙２８は、常温で窒素ガスや空気が充填されているだけ
なので、間隙２８には酸素濃度を確認した上作業者が入
って点検作業等を行うことができる。The gap 28 between the inner shell 1B of the hull 1 and the film body 23 is only filled with nitrogen gas or air at room temperature. Therefore, after checking the oxygen concentration, a worker enters the gap 28. Can be used for inspection work.
【００３１】なお、前記実施例において、前記断熱材２
２の内部に、容器本体２１の壁面にほぼ平行に熱輻射板
を埋設するようにしてもよい。これにより、前記実施例
より更に高い保冷性能を保持することができる。In the above embodiment, the heat insulating material 2 is used.
A heat radiation plate may be embedded inside the container 2 substantially parallel to the wall surface of the container body 21. As a result, it is possible to maintain a higher cold insulation performance than in the above-mentioned embodiment.
【００３２】[0032]
【発明の効果】以上説明したように、本発明の請求項１
記載の液体運搬船用自立角型タンクによれば、船殻の中
空部に搭載され液体を収納する液体運搬用自立角型タン
クであって、低温液体が収納される容器本体と、この容
器本体の外面に配置された一定以上の圧縮強度を有する
断熱材と、この断熱材の外面を覆いかつ内外の気密性を
保って配置された膜体とを備えるので、容器本体内に低
温液体を収納すると、容器本体と膜体との間の気体が冷
却されて凝縮して容器本体と膜体との間の真空度が高め
られ、低温液体の保冷性能を向上させることができ、し
かも、容器本体と膜体との間には一定以上の圧縮強度を
有する断熱材が配置されているので、膜体自体の強度が
それほど大きくなくても、真空度の上昇に起因して膜体
に大気圧が作用しても、容器本体と膜体との間隔を保持
することができ、保冷性能を高く維持できる。As described above, according to the first aspect of the present invention.
According to the self-supporting square tank for a liquid carrier described, it is a self-supporting square tank for transporting a liquid, which is mounted in a hollow part of a hull, and which stores a low temperature liquid, and a container body of the container body. Since a heat insulating material having a compressive strength of a certain level or more arranged on the outer surface and a film body arranged so as to cover the outer surface of the heat insulating material and maintain air tightness inside and outside, when a low temperature liquid is stored in the container body, , The gas between the container body and the film body is cooled and condensed to increase the degree of vacuum between the container body and the film body, and it is possible to improve the cold insulation performance of the low temperature liquid. Since a heat insulating material having a certain compressive strength is placed between the membrane and the membrane, even if the membrane itself is not so strong, the atmospheric pressure acts on the membrane due to the increase in the degree of vacuum. Even so, it is possible to maintain the distance between the container body and the membrane body, The cold performance can be maintained high.
【００３３】本発明の請求項２記載の液体運搬船用自立
角型タンクは、請求項１記載の液体運搬船用自立角型タ
ンクにおいて、前記膜体よりも内側に位置して設けられ
た第１の支持ブロックと、前記船殻側の前記第１の支持
ブロックに対応する位置に設けられ、前記第１の支持ブ
ロックを膜体を介して支持する第２の支持ブロックとが
設けられているので、この部分で気密性の低下すること
がないとともに、容器本体内に低温液体を収納して容器
本体等が収縮した際においても、第１及び第２のブロッ
クが膜体部分を滑り面として相対移動し、この結果、膜
体に過大な応力が発生することがない。The self-supporting square tank for a liquid carrier according to claim 2 of the present invention is the self-supporting square tank for a liquid carrier according to claim 1, wherein the first tank is provided inside the film body. Since a support block and a second support block that is provided at a position corresponding to the first support block on the hull side and that supports the first support block via a film body are provided, The airtightness does not deteriorate at this portion, and the first and second blocks move relative to each other with the film portion as a sliding surface even when the low temperature liquid is stored in the container body and the container body or the like contracts. However, as a result, excessive stress does not occur in the film body.
【００３４】本発明の請求項３記載の液体運搬船用自立
角型タンクは、請求項１又は２記載の液体運搬船用自立
角型タンクにおいて、前記断熱材が多数の独立気泡がの
発泡対から構成された材料からなるので、容器本体内の
低温液体により冷却されて凝縮した気体が各独立気泡内
に残留して移動することがなく、したがって、物質移動
に伴う外部との熱の授受がなく、保冷性能を高く維持す
ることができる。The self-supporting square tank for a liquid carrier according to claim 3 of the present invention is the self-supporting square tank for a liquid carrier according to claim 1 or 2, wherein the heat insulating material is composed of a foamed pair of a large number of closed cells. Since it is made of the material described above, the gas cooled and condensed by the low temperature liquid in the container body does not remain and move in each independent bubble, and therefore, there is no transfer of heat with the outside due to mass transfer, Cooling performance can be maintained high.
【００３５】本発明の請求項４記載の液体運搬船用自立
角型タンクは、請求項１〜３のいずれかに記載の液体運
搬用自立角型タンクにおいて、前記断熱材の内部に熱輻
射板が埋設されているので、さらに保冷性能を高めるこ
とができる。According to a fourth aspect of the present invention, there is provided a self-supporting square tank for a liquid carrier, wherein the heat-radiating plate is provided inside the heat insulating material. Since it is buried, the cold insulation performance can be further enhanced.
【図１】本発明の一実施例の液体運搬船用自立角型タン
クの横断面図である。FIG. 1 is a cross-sectional view of a self-standing square tank for a liquid carrier according to an embodiment of the present invention.
【図２】図１中のII方向矢視図である。FIG. 2 is a view on arrow II in FIG.
【図３】図１中のIII方向矢視図である。FIG. 3 is a view in the direction of arrow III in FIG.
【図４】従来の液体運搬船の例を示す正面図である。FIG. 4 is a front view showing an example of a conventional liquid carrier.
【図５】図４の液体運搬船の平面図である。5 is a plan view of the liquid carrier of FIG.
【図６】図４の液体運搬船の横断面図である。6 is a cross-sectional view of the liquid carrier of FIG.
【図７】図４の液体運搬船の縦断面図である。7 is a vertical cross-sectional view of the liquid carrier of FIG.
１ 船体 １Ａ 外側殻 １Ｂ 内側殻 ２ 中空部 ２０ タンク ２１ 容器本体 ２２ 断熱材 ２３ 膜体 ２４ 第１の支持ブロック ２５ 第２の支持ブロック 1 Hull 1A Outer Shell 1B Inner Shell 2 Hollow 20 Tank 21 Container Body 22 Insulation 23 Membrane 24 First Support Block 25 Second Support Block
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ１７Ｃ 13/08 ３０２ Ｂ (72)発明者 安部 昭則 東京都江東区豊洲二丁目一番１号 石川島 播磨重工業株式会社東京第一工場内 (72)発明者 関 紀明 東京都江東区豊洲二丁目一番１号 石川島 播磨重工業株式会社東京第一工場内 (72)発明者 山口 方士 神奈川県横浜市磯子区新中原町１番地 石 川島播磨重工業株式会社横浜技術研究所内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Reference number within the agency FI Technical indication location F17C 13/08 302 B (72) Inventor Akinori Abe 1st No. 1 Toyosu, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries Ltd., Tokyo 1st factory (72) Inventor Noriaki Seki No. 1 Toyosu 2-chome, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries Ltd., Tokyo 1st factory (72) Inventor Takashi Yamaguchi Isogo-ku, Yokohama-shi, Kanagawa Shin-Nakahara Town No. 1 Ishikawajima Harima Heavy Industries Ltd. Yokohama Technical Research Institute
Claims (4)
液体運搬用自立角型タンクであって、低温液体が収納さ
れる容器本体と、この容器本体の外面に配置された一定
以上の圧縮強度を有する断熱材と、この断熱材の外面を
覆いかつ内外の気密性を保って配置された膜体とを備え
ることを特徴とする液体運搬船用自立角型タンク。1. A self-supporting rectangular tank for liquid transportation, which is mounted in a hollow portion of a hull and stores a liquid, wherein a container main body for storing a low temperature liquid and a container having a predetermined amount or more arranged on an outer surface of the container main body. A self-supporting rectangular tank for a liquid carrier, comprising: a heat insulating material having compressive strength; and a film body which covers the outer surface of the heat insulating material and is arranged to keep airtightness inside and outside.
た第１の支持ブロックと、前記船殻側の前記第１の支持
ブロックに対応する位置に設けられ、前記第１の支持ブ
ロックを膜体を介して支持する第２の支持ブロックとが
設けられていることを特徴とする請求項１記載の液体運
搬船用自立角型タンク。2. A first support block provided inside the film body and a position corresponding to the first support block on the hull side, and the first support block. 2. A self-standing square tank for a liquid carrier according to claim 1, further comprising a second support block that supports the liquid crystal through a film body.
ら構成される材料からなることを特徴とする請求項１又
は２記載の液体運搬船用自立角型タンク。3. The self-supporting rectangular tank for a liquid carrier according to claim 1, wherein the heat insulating material is made of a material composed of a large number of closed-cell foams.
ていることを特徴とする請求項１〜３のいずれかに記載
の液体運搬用自立角型タンク。4. The self-standing rectangular tank for liquid transportation according to claim 1, wherein a heat radiation plate is embedded inside the heat insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28226894A JP3428748B2 (en) | 1994-11-16 | 1994-11-16 | Freestanding square tank for liquid carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28226894A JP3428748B2 (en) | 1994-11-16 | 1994-11-16 | Freestanding square tank for liquid carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08142976A true JPH08142976A (en) | 1996-06-04 |
| JP3428748B2 JP3428748B2 (en) | 2003-07-22 |
Family
ID=17650245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28226894A Expired - Lifetime JP3428748B2 (en) | 1994-11-16 | 1994-11-16 | Freestanding square tank for liquid carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3428748B2 (en) |
Cited By (16)
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|---|---|---|---|---|
| KR20030043181A (en) * | 2001-11-27 | 2003-06-02 | 대우조선해양 주식회사 | Adiabatic box in LNG carrier |
| KR20100106891A (en) * | 2009-03-24 | 2010-10-04 | 대우조선해양 주식회사 | Restraining equipments for independence type cargo tank and its insulation method |
| KR200457879Y1 (en) * | 2009-03-16 | 2012-01-06 | 대우조선해양 주식회사 | Support structure of independent storage tank |
| WO2015125476A1 (en) * | 2014-02-21 | 2015-08-27 | 川崎重工業株式会社 | Liquefied gas tank and liquefied gas transport vessel |
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| CN105711756A (en) * | 2014-12-03 | 2016-06-29 | 江南造船(集团)有限责任公司 | Insulated mounting method for bottom-surface inside vertical supports of A-type independent liquid cargo tank |
| CN105711736A (en) * | 2014-12-03 | 2016-06-29 | 江南造船(集团)有限责任公司 | Insulated mounting method for dome of A-type independent liquid cargo tank |
| CN107002945A (en) * | 2014-12-16 | 2017-08-01 | 瓦锡兰芬兰有限公司 | LNG storage tank and the system for connecting at least one pipe between LNG storage tank and its storage tank connection space |
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| CN108139027A (en) * | 2015-10-29 | 2018-06-08 | 川崎重工业株式会社 | Vacuum insulation structure |
| WO2018231004A1 (en) * | 2017-06-16 | 2018-12-20 | (주)하나파워시스템서비스 | Large cryogenic storage tank having insulation layer formed thereon |
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1994
- 1994-11-16 JP JP28226894A patent/JP3428748B2/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030043181A (en) * | 2001-11-27 | 2003-06-02 | 대우조선해양 주식회사 | Adiabatic box in LNG carrier |
| KR200457879Y1 (en) * | 2009-03-16 | 2012-01-06 | 대우조선해양 주식회사 | Support structure of independent storage tank |
| KR20100106891A (en) * | 2009-03-24 | 2010-10-04 | 대우조선해양 주식회사 | Restraining equipments for independence type cargo tank and its insulation method |
| WO2015125476A1 (en) * | 2014-02-21 | 2015-08-27 | 川崎重工業株式会社 | Liquefied gas tank and liquefied gas transport vessel |
| JP2015155732A (en) * | 2014-02-21 | 2015-08-27 | 川崎重工業株式会社 | Liquefied gas tank and liquefied gas carrying vessel |
| CN105644712A (en) * | 2014-12-03 | 2016-06-08 | 江南造船(集团)有限责任公司 | Installation method for top face middle anti-rolling support insulation components of A-shaped independent liquid cargo tank |
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| CN105711756A (en) * | 2014-12-03 | 2016-06-29 | 江南造船(集团)有限责任公司 | Insulated mounting method for bottom-surface inside vertical supports of A-type independent liquid cargo tank |
| CN105711736A (en) * | 2014-12-03 | 2016-06-29 | 江南造船(集团)有限责任公司 | Insulated mounting method for dome of A-type independent liquid cargo tank |
| KR20170096126A (en) * | 2014-12-16 | 2017-08-23 | 바르실라 핀랜드 오이 | Lng tank and system for connecting at least one pipe between an lng tank and a tank connection space thereof |
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| CN108139027B (en) * | 2015-10-29 | 2020-01-03 | 川崎重工业株式会社 | Vacuum heat insulation structure |
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| JPWO2017138044A1 (en) * | 2016-02-12 | 2018-11-01 | 川崎重工業株式会社 | Marine double shell tank |
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| WO2018231004A1 (en) * | 2017-06-16 | 2018-12-20 | (주)하나파워시스템서비스 | Large cryogenic storage tank having insulation layer formed thereon |
| JPWO2020202579A1 (en) * | 2019-04-05 | 2020-10-08 | ||
| WO2020202579A1 (en) * | 2019-04-05 | 2020-10-08 | 川崎重工業株式会社 | Liquefied gas tank and liquefied gas carrying vessel |
| CN113661134A (en) * | 2019-04-05 | 2021-11-16 | 川崎重工业株式会社 | Liquefied gas tank and liquefied gas carrying ship |
| KR20210141628A (en) * | 2019-04-05 | 2021-11-23 | 카와사키 주코교 카부시키 카이샤 | Liquefied gas tanks and liquefied gas carriers |
| CN113661134B (en) * | 2019-04-05 | 2023-03-10 | 川崎重工业株式会社 | Liquefied gas tank and liquefied gas carrying ship |
| JP2023541001A (en) * | 2020-09-04 | 2023-09-27 | ラティス インターナショナル エーエス | Insulated tanks with integrated or operably connected support systems |
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|---|---|
| JP3428748B2 (en) | 2003-07-22 |
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