JP3519756B2 - Cooling structure of liquefied gas tank - Google Patents
Cooling structure of liquefied gas tankInfo
- Publication number
- JP3519756B2 JP3519756B2 JP13351593A JP13351593A JP3519756B2 JP 3519756 B2 JP3519756 B2 JP 3519756B2 JP 13351593 A JP13351593 A JP 13351593A JP 13351593 A JP13351593 A JP 13351593A JP 3519756 B2 JP3519756 B2 JP 3519756B2
- Authority
- JP
- Japan
- Prior art keywords
- cold
- tank body
- panel
- liquefied gas
- tank
- 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.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims description 14
- 238000009413 insulation Methods 0.000 claims description 25
- 230000008602 contraction Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 102200068707 rs281865211 Human genes 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液化ガスタンクの保冷
構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling structure for a liquefied gas tank.
【０００２】[0002]
【従来の技術】一般に、ＬＮＧ等の低温液化ガスを輸送
する液化ガス船には、液化ガスタンクが搭載されてお
り、この種の液化ガスタンクは、図３及び図４に示され
る如く、タンク本体１の外表面に、ポリウレタンフォー
ム等の保冷パネル２を、タンク本体１外表面から突設さ
れ且つ先端部に雄ねじ部が形成されたロッド等の支持部
材３に対しワッシャ等の押え部材４を介してナット等の
締付部材５を締め付けることにより、多数取り付けて保
冷層を形成している。2. Description of the Related Art Generally, a liquefied gas tank for carrying a low-temperature liquefied gas such as LNG is equipped with a liquefied gas tank. As shown in FIGS. A cold insulation panel 2 made of polyurethane foam or the like is provided on the outer surface of the support member 3 such as a rod protruding from the outer surface of the tank body 1 and having a male screw portion formed at the tip end thereof via a pressing member 4 such as a washer. By tightening the tightening members 5 such as nuts, a large number of them are attached to form a cold insulation layer.
【０００３】前記保冷パネル２には、通常、ポリウレタ
ンフォーム等が用いられるが、タンク本体１内に低温の
液化ガスを貯留した際におけるタンク本体１の冷却収縮
時には、保冷層に圧縮応力が作用し、特に、タンク本体
１の稜線部においては、タンク本体１の平面部における
保冷層に作用した圧縮応力による歪みの影響が集中する
形となり、稜線部に取り付けられる保冷パネル２が大き
く変形する虞れがあるため、該稜線部に取り付けられる
保冷パネル２には、密度が高く且つ強度の高いものを使
用する必要があり、これに合せて稜線部以外の平面部に
取り付けられる保冷パネル２にも、稜線部と同じものが
使用されていた。Polyurethane foam or the like is usually used for the cold insulation panel 2. When the tank body 1 is cooled and contracted when a low-temperature liquefied gas is stored in the tank body 1, compressive stress acts on the cold insulation layer. Particularly, in the ridge line portion of the tank body 1, the influence of the strain due to the compressive stress acting on the cold insulation layer in the flat portion of the tank body 1 becomes concentrated, and the cold insulation panel 2 attached to the ridge portion may be greatly deformed. Therefore, the cold insulation panel 2 attached to the ridge portion needs to have high density and high strength, and accordingly, the cold insulation panel 2 attached to the flat portion other than the ridge portion, The same thing as the ridge was used.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、前述の
如くタンク本体１に取り付けられる保冷パネル２を全て
密度が高く且つ強度の高いものとするのでは、コストア
ップにつながると共に、密度を高くした分だけ熱が伝わ
りやすくなり全体の保冷性能も低下してしまうという欠
点を有していた。However, if all of the cold insulation panels 2 attached to the tank body 1 are made to have a high density and high strength as described above, this leads to an increase in cost and only the increased density. It has a drawback that heat is easily transmitted and the overall cold insulation performance is deteriorated.
【０００５】本発明は、斯かる実情に鑑み、コスト的に
有利で且つ保冷性能を向上し得る液化ガスタンクの保冷
構造を提供しようとするものである。In view of the above situation, the present invention aims to provide a cold insulation structure for a liquefied gas tank which is cost effective and can improve cold insulation performance.
【０００６】[0006]
【課題を解決するための手段】本発明は、液化ガスを貯
留するタンク本体に設けた支持部材を挿通し該支持部材
により支持する押え部材で押えることにより前記タンク
本体外表面に保冷パネルを多数取り付けてなる液化ガス
タンクの保冷構造において、タンク本体の冷却収縮時に
作用する圧縮応力による歪みが集中するタンク本体の稜
線部外表面に、タンク本体の平面部外表面に取り付けら
れる保冷パネルより圧縮強度の高い保冷パネルを配置し
たことを特徴とする液化ガスタンクの保冷構造にかかる
ものである。According to the present invention, a large number of cold insulation panels are provided on the outer surface of the tank main body by inserting a supporting member provided in the tank main body storing the liquefied gas and pressing the supporting member with the supporting member. In the cooling structure of the liquefied gas tank that is installed, when the tank body cools and shrinks
The ridge portion outer surface of the tank body distortion due to compressive stress applied is concentrated, cold structure of the liquefied gas tank, characterized in that a high cold panel compressive strength than cold panel to be attached to the planar portion outer surface of the tank body It depends on.
【０００７】又、前記液化ガスタンクの保冷構造におい
て、タンク本体の稜線部外表面に取り付けられる保冷パ
ネルの押え部材の面積を大きくするのが有効である。[0007] In the cold structure of the liquefaction gas tank, it is effective to increase the area of the pressing member of the cold panel attached to the ridge portion outer surface of the tank body.
【０００８】[0008]
【作用】従って、タンク本体の冷却収縮時に作用する圧
縮応力による歪みが集中するタンク本体の稜線部外表面
に、タンク本体の平面部外表面に取り付けられる保冷パ
ネルより圧縮強度の高い保冷パネルを配置すると、タン
ク本体の冷却収縮時に稜線部外表面に取り付けられる保
冷パネルが大きく変形することはなく、又、タンク本体
の平面部外表面に取り付けられる保冷パネルとしては、
稜線部外表面に取り付けられる保冷パネルより密度が多
少低く且つ強度の多少低いものが選定される形となるた
め、コストダウンにつながると共に、密度を多少低くし
た分だけ熱が伝わりにくくなり全体の保冷性能も大幅に
高まることとなる。[Operation] Therefore, the pressure applied during cooling contraction of the tank body
The ridge portion outer surface <br/> of the tank body distortion due to shrinkage stress is concentrated, placing a high cold panel compressive strength than cold panel to be attached to the planar portion outer surface of the tank body, the ridge line during cooling shrinkage of the tank body never cold panel attached to the part outer surface is largely deformed, and, as a cold insulation panel to be attached to the flat portion outside surface of the tank body,
Since the shape of the density from the cold panel is attached to the ridge portion outer surface is selected those slightly lower and somewhat lower strength, along with the cost is down, the entire hardly only heat is transferred amount corresponding to the slightly lower density cold Performance will also increase significantly.
【０００９】一方、タンク本体の稜線部外表面に取り付
けられる保冷パネルの押え部材の面積を大きくすると、
タンク本体の稜線部外表面における保冷パネルの取付状
態がより安定化し、タンク本体の冷却収縮時における稜
線部外表面の保冷パネルの変形がより確実に防止される
こととなる。Meanwhile, when increasing the area of the pressing member of the cold panel attached to the ridge portion outer surface of the tank body,
More stable mounting state of the cold panel in ridge portion outer surface of the tank body, so that the deformation of the cold panel ridge portion outer surface during the cooling shrinkage of the tank body can be more reliably prevented.
【００１０】[0010]
【実施例】以下、本発明の実施例を図面を参照しつつ説
明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１１】図１は本発明の一実施例であって、図中、
図３と同一の符号を付した部分は同一物を表わしてお
り、基本的な構成は図３に示す従来のものと同様である
が、本実施例の特徴とするところは、図１に示す如く、
タンク本体１の稜線部外表面に、タンク本体１の平面部
に取り付けられる保冷パネル２’より密度が高く且つ強
度の高い保冷パネル２を配置した点にある。FIG. 1 shows an embodiment of the present invention.
The parts denoted by the same reference numerals as those in FIG. 3 represent the same things, and the basic structure is the same as that of the conventional one shown in FIG. 3, but the feature of this embodiment is shown in FIG. as,
The ridge portion outer surface of the tank body 1, lies in that the arrangement density is high and intense a cold panel 2 than the cold panel 2 'attached to the planar portion of the tank body 1.
【００１２】更に、本実施例においては、図２に示す如
く、タンク本体１の稜線部外表面に取り付けられる保冷
パネル２の押え部材４’の面積を大きくしてある。Furthermore, in the present embodiment, as shown in FIG. 2, it is to increase the area of the pressing member 4 of the cold panel 2 attached to the ridge portion outer surface of the tank body 1 '.
【００１３】前述の如くタンク本体１の稜線部外表面
に、タンク本体１の平面部外表面に取り付けられる保冷
パネル２’より密度が高く且つ強度の高い保冷パネル２
を配置すると、タンク本体１の冷却収縮時に稜線部に取
り付けられる保冷パネル２が大きく変形することはな
く、又、タンク本体１の平面部外表面に取り付けられる
保冷パネル２’としては、稜線部外表面に取り付けられ
る保冷パネル２より密度が多少低く且つ強度の多少低い
ものが選定される形となるため、コストダウンにつなが
ると共に、密度を多少低くした分だけ熱が伝わりにくく
なり全体の保冷性能も大幅に高まることとなる。As described above, the ridge of the tank body 1Outer surface
The flat part of the tank body 1.Outer surfaceCold insulation attached to
Cooling panel 2 having higher density and strength than panel 2 '
Is placed on the ridge when the tank body 1 cools and contracts.
The cold insulation panel 2 attached cannot be greatly deformed.
Also, the flat part of the tank body 1Outer surfaceAttached to
As the cold insulation panel 2 ', the ridge line portionOuter surfaceMounted on
It has a slightly lower density and slightly lower strength than the cold insulation panel 2.
As the items will be selected, it will lead to cost reduction.
In addition, the heat is less likely to be transferred due to the lower density.
As a result, the overall cold storage performance will be greatly improved.
【００１４】一方、タンク本体１の稜線部外表面に取り
付けられる保冷パネル２の押え部材４’の面積を大きく
すると、タンク本体１の稜線部外表面における保冷パネ
ル２の取付状態がより安定化し、タンク本体１の冷却収
縮時における稜線部外表面の保冷パネル２の変形がより
確実に防止されることとなる。[0014] On the other hand, when increasing the area of the tank pressing member 4 of the cold panel 2 attached to the ridge portion outer surface of the body 1 ', attached state of the cold panel 2 in the ridge portion outer surface of the tank body 1 is more stabilized, so that the deformation of the cold panel 2 of the ridge line portion outer surface during the cooling shrinkage of the tank body 1 is more reliably prevented.
【００１５】こうして、タンク本体１の稜線部外表面
に、タンク本体１の平面部外表面に取り付けられる保冷
パネル２’より密度が高く且つ強度の高い保冷パネル２
を配置すれば、コスト的に有利で且つ保冷性能を向上す
ることが可能となり、更に、タンク本体１の稜線部外表
面に取り付けられる保冷パネル２の押え部材４’の面積
を大きくすれば、タンク本体１の稜線部外表面における
保冷パネル２の取付状態をより安定化することができ、
タンク本体１の冷却収縮時における稜線部外表面の保冷
パネル２の変形をより確実に防止することができる。Thus, the ridge of the tank body 1Outer surface
The flat part of the tank body 1.Outer surfaceCold insulation attached to
Cooling panel 2 having higher density and strength than panel 2 '
Is placed, it is cost effective and improves the cold insulation performance.
And the ridge of the tank body 1Outside table
surfaceArea of the pressing member 4'of the cold insulation panel 2 attached to the
If you increase, the ridge of the tank body 1Outer surfaceIn
The mounting state of the cold insulation panel 2 can be more stabilized,
Ridge portion at the time of cooling contraction of the tank body 1Outer surfaceCold storage
The deformation of the panel 2 can be prevented more reliably.
【００１６】尚、本発明の液化ガスタンクの保冷構造
は、上述の実施例にのみ限定されるものではなく、本発
明の要旨を逸脱しない範囲内において種々変更を加え得
ることは勿論である。The cooling structure for the liquefied gas tank according to the present invention is not limited to the above-mentioned embodiment, and it goes without saying that various modifications can be made without departing from the scope of the present invention.
【００１７】[0017]
【発明の効果】以上、説明したように本発明の液化ガス
タンクの保冷構造によれば、コスト的に有利で且つ保冷
性能を向上し得、更に、タンク本体の稜線部外表面に取
り付けられる保冷パネルの押え部材の面積を大きくすれ
ば、タンク本体の稜線部外表面における保冷パネルの取
付状態をより安定化することができ、タンク本体の冷却
収縮時における稜線部外表面の保冷パネルの変形をより
確実に防止し得るという優れた効果を奏し得る。Effect of the Invention] According to the cold structure of liquefied gas tank of the present invention, as described, to obtain improved cost-advantageous and cold performance, further, cold panel attached to the ridge portion outer surface of the tank body by increasing the area of the pressing member, it is possible to further stabilize the mounted state of the cold panel in ridge portion outer surface of the tank body, and more deformation of the cold panel ridge portion outer surface during the cooling shrinkage of the tank body An excellent effect that it can be surely prevented can be obtained.
【図１】本発明の一実施例の断面図である。FIG. 1 is a sectional view of an embodiment of the present invention.
【図２】図１のＩＩ部拡大図である。FIG. 2 is an enlarged view of a part II in FIG.
【図３】従来例の断面図である。FIG. 3 is a sectional view of a conventional example.
【図４】図３のＩＶ部拡大図である。FIG. 4 is an enlarged view of a portion IV in FIG.
１ タンク本体 ２ 保冷パネル ２’ 保冷パネル ３ 支持部材 ４’ 押え部材 1 tank body 2 cold insulation panel 2'cold panel 3 Support members 4'holding member
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭58−187695（ＪＰ，Ａ) 特開 昭53−36758（ＪＰ，Ａ) 特開 昭58−94696（ＪＰ，Ａ) 特開 昭54−262（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) F17C 3/04 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-58-187695 (JP, A) JP-A-53-36758 (JP, A) JP-A-58-94696 (JP, A) JP-A-54- 262 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) F17C 3/04
Claims (2)
支持部材を挿通し該支持部材により支持する押え部材で
押えることにより前記タンク本体外表面に保冷パネルを
多数取り付けてなる液化ガスタンクの保冷構造におい
て、タンク本体の冷却収縮時に作用する圧縮応力による
歪みが集中するタンク本体の稜線部外表面に、タンク本
体の平面部外表面に取り付けられる保冷パネルより圧縮
強度の高い保冷パネルを配置したことを特徴とする液化
ガスタンクの保冷構造。1. A cold insulation structure for a liquefied gas tank, wherein a large number of cold insulation panels are attached to an outer surface of the tank main body by inserting a support member provided in a tank main body for storing liquefied gas and pressing the support member with the support member. Due to the compressive stress that acts during cooling contraction of the tank body,
The ridge portion outer surface of the tank body distortion is concentrated, cold structure of the liquefied gas tank, characterized in that a high cold panel compressive strength than cold panel to be attached to the planar portion outer surface of the tank body.
れる保冷パネルの押え部材の面積を大きくした請求項１
記載の液化ガスタンクの保冷構造。2. A method according to claim the area of the pressing member of the cold panel attached to the ridge portion outer surface of the tank body were largely 1
Cooling structure for the liquefied gas tank described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13351593A JP3519756B2 (en) | 1993-06-03 | 1993-06-03 | Cooling structure of liquefied gas tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13351593A JP3519756B2 (en) | 1993-06-03 | 1993-06-03 | Cooling structure of liquefied gas tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06341595A JPH06341595A (en) | 1994-12-13 |
| JP3519756B2 true JP3519756B2 (en) | 2004-04-19 |
Family
ID=15106594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13351593A Expired - Lifetime JP3519756B2 (en) | 1993-06-03 | 1993-06-03 | Cooling structure of liquefied gas tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3519756B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119737556A (en) * | 2025-02-12 | 2025-04-01 | 中海石油气电集团有限责任公司 | A cold preservation structure and installation method of a cryogenic liquid tank |
-
1993
- 1993-06-03 JP JP13351593A patent/JP3519756B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06341595A (en) | 1994-12-13 |
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