JPH01269797A - Method of reusing pearlite particle heat insulator in existing low temperature storage tank - Google Patents
Method of reusing pearlite particle heat insulator in existing low temperature storage tankInfo
- Publication number
- JPH01269797A JPH01269797A JP9808188A JP9808188A JPH01269797A JP H01269797 A JPH01269797 A JP H01269797A JP 9808188 A JP9808188 A JP 9808188A JP 9808188 A JP9808188 A JP 9808188A JP H01269797 A JPH01269797 A JP H01269797A
- Authority
- JP
- Japan
- Prior art keywords
- dike
- tank
- existing
- perlite
- storage 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.)
- Granted
Links
- 229910001562 pearlite Inorganic materials 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 13
- 239000002245 particle Substances 0.000 title abstract description 7
- 239000012212 insulator Substances 0.000 title 1
- 238000009413 insulation Methods 0.000 claims description 29
- 235000019362 perlite Nutrition 0.000 claims description 17
- 239000010451 perlite Substances 0.000 claims description 17
- 239000004567 concrete Substances 0.000 claims description 15
- 239000012774 insulation material Substances 0.000 claims description 12
- 239000011513 prestressed concrete Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 239000003979 granulating agent Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims 1
- 239000011810 insulating material Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000000605 extraction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000011491 glass wool Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/022—Land-based bulk storage containers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—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
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
- F17C2203/0337—Granular
- F17C2203/0341—Perlite
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (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】
（産業上の利用分野）
この発明は、既設の低温貯槽を、プレストレストコンク
リート防液堤を備えた二重壁式低温タンクに改造し、既
設の低温貯槽に使用したパーライト粒断熱材を新たな改
造タンクの断熱材として再使用する方法に関するもので
ある。[Detailed Description of the Invention] (Field of Industrial Application) This invention involves converting an existing low-temperature storage tank into a double-walled low-temperature tank equipped with a prestressed concrete dike. The present invention relates to a method for reusing granular insulation material as insulation material for newly modified tanks.
（従来の技術）
既設の低温貯槽は、鋼板製の内槽と外槽を有する二重殻
式密閉タンクに形成され、内槽と外槽との隔接間隔内に
保冷用断熱材としてパーライト粒を充填して使用してい
るのが普通である。(Prior technology) The existing low-temperature storage tank is formed as a double-shell sealed tank with an inner tank and an outer tank made of steel plates, and pearlite grains are used as a cold insulation material in the space between the inner tank and the outer tank. It is common to use it by filling it with
パーライト粒は、小麦粉状の粉末状で使用され、このパ
ーライト粒の使用量は例えば４万トンの液化石油ガス（
ＬＰＧ）タンクで約５０００立方米である。Perlite grains are used in the form of flour-like powder, and the amount of perlite grains used is, for example, 40,000 tons of liquefied petroleum gas (
(LPG) tank is approximately 5,000 cubic meters.
（発明が解決しようとする課８１’）
パーライト粒の断熱材を使用した既設の低温貯槽は、そ
の耐用年数からして、多くが既に建替えの時期に来てお
り、この建替えの際におけるパーライト粒断熱材の処理
が問題となっている。(Issue 81' to be solved by the invention) Many of the existing low-temperature storage tanks using perlite grain insulation have already reached the time of rebuilding due to their service life, and there are The treatment of perlite granule insulation has become a problem.
つまり、その比重は０．０７程度と非常に軽く、かつ粉
粒状のため空中に飛散する等、その取扱いが難しいこと
、また不燃性のためその処理に多大の費用が掛かるので
ある。In other words, it has a very light specific gravity of about 0.07, and because it is powdery, it is difficult to handle as it scatters in the air, and because it is nonflammable, it costs a lot of money to dispose of it.
（課題を解決するための手段〉
この発明は、上述の課題を解決するために、既設の二重
殻式の低温貯槽の底盤基礎外周に連接してプレストレス
トコンクリートの防液堤を立設し、当該防液堤と既設の
低温貯槽の外槽側壁との空間を新たな側部保冷層に形成
して既設の低温貯槽のパーライト粒断熱材を断熱材とし
て再使用する方法を提供しようとするものである。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention erects a prestressed concrete liquid barrier connected to the outer periphery of the bottom base of an existing double-shelled low-temperature storage tank, The present invention aims to provide a method of reusing the pearlite grain insulation material of the existing low temperature storage tank as a heat insulating material by forming a new side cold insulation layer in the space between the liquid barrier and the outer tank side wall of the existing low temperature storage tank. It is.
また、併せてパーライト粒を混合したパーライトコンク
リートとして防液堤の一部に使用する方法を提供するも
のである。Furthermore, the present invention also provides a method for using pearlite concrete mixed with pearlite particles in a part of a dike.
（牛用）
改造後の二重壁式低温タンクは、既設の低温貯槽におけ
る底盤基礎の外周に連接して防液堤が立設されるので、
広大な面積の防液空間が不要となり、余剰の敷地を他に
流用して有効に使用できる今日的課題を解決できる。(For cattle) The modified double-wall cryogenic tank will have a dike erected connected to the outer periphery of the bottom foundation of the existing cryogenic storage tank.
This eliminates the need for a vast area of liquid-proof space, and can solve the current problem of effectively diverting surplus land to other areas.
また、新たに作るのではなく、既設の低温貯槽を利用す
るので構築費用の大巾な軽減が可能て′ある。Additionally, since an existing low-temperature storage tank is used instead of building a new tank, construction costs can be significantly reduced.
また、パーライト粒断熱材も、断熱材として再使用され
るので有効に利用することが可能となる。パーライトコ
ンクリートとして防液堤の一部に使用するのでは、防液
堤の保冷効果と共に耐火性を増加することが可能となる
。In addition, the pearlite grain insulation material can also be reused as a heat insulation material, so it can be used effectively. When used as pearlite concrete in a part of a dike, it becomes possible to increase the fire resistance as well as the cooling effect of the dike.
（実施例） 実施例について図面を参照して説明する。(Example) Examples will be described with reference to the drawings.
第１図において、内槽（１）、外槽■、底部保冷層（３
）、および屋根部保冷層（２）は既設のものであり、内
槽（１）及び外槽（２Ｉは、平底円筒形の密閉式の鋼板
製タンクで、屋根部保冷層（４）の保冷材はパーライト
粒（１９）である。In Figure 1, the inner tank (1), the outer tank ■, and the bottom cold insulation layer (3
), and the roof cold insulation layer (2) are already installed, and the inner tank (1) and the outer tank (2I are flat-bottom cylindrical sealed steel plate tanks, and the roof cold insulation layer (4) The material is pearlite grains (19).
防液堤（９は、外槽Ｕの底盤基礎（７）の外周に連接し
て防液堤基礎６を形成し、この防液堤基礎（へ）から鉛
直上方に円筒状に立設する。The liquid dike (9) is connected to the outer periphery of the bottom foundation (7) of the outer tank U to form a liquid dike foundation 6, and is erected in a cylindrical shape vertically upward from this liquid dike foundation.
防液堤（５Ｉは、プレストレストコンクリートで形成し
、外槽Ｕの側部との間に隔接代を設けて形成する。The liquid dike (5I) is made of prestressed concrete and is formed by providing a welding allowance between it and the side of the outer tank U.
当該隔接代を新たな保冷層（６）に形成する。新たな保
冷層（６）は、第２図に示すように、次のように形成す
る。The separation allowance is formed into a new cold insulation layer (6). As shown in FIG. 2, the new cold insulation layer (6) is formed as follows.
まず、内槽ｆｉ＋と外槽０間の側部上縁に支持板（９）
を設けて屋根部保冷層（４）と側部保冷層００１に区切
り、更に第２図に示すように、外槽（２の側部下端に側
壁を通貫して形成したノズル（１１）を設け、引抜きホ
ース（１２）を接続する。引抜きホース（１２）にエジ
ェクターノズルを挿嵌し、加圧空気を導入して側部保冷
層αωのパーライト粒（１９）を、外槽Ｕと防液堤（５
１の隔接間隔内に移送し、パーライト粒（１９）そのま
まで新たな保冷層（６）に形成する。First, there is a support plate (9) on the upper edge of the side between the inner tank fi+ and the outer tank 0.
A nozzle (11) is provided at the lower end of the side of the outer tank (2) to separate it into a roof cold insulation layer (4) and a side cold insulation layer 001, as shown in FIG. and connect the extraction hose (12).Insert the ejector nozzle into the extraction hose (12) and introduce pressurized air to remove the pearlite grains (19) of the side cold insulation layer αω from the outer tank U and the liquid-proof Bank (5
The pearlite grains (19) are transferred as they are to form a new cold insulation layer (6).
その後ノズル（１１）を除去して、さらに防液堤（９と
外槽Ｕとの隔接間隔上縁を封塞する。Thereafter, the nozzle (11) is removed, and the upper edge of the separation gap between the liquid barrier (9) and the outer tank U is further sealed.
この場合、パーライト粒（１９）を移送した側部保冷層
ａαの後はそのまま空間として残し、補修空間（１４）
に形成する。In this case, the space after the side cold insulation layer aα to which the pearlite grains (19) were transferred is left as is, and the repair space (14)
to form.
次に池の再使用方法について説明する。Next, we will explain how to reuse the pond.
第３図において、パーライトコンクリート保冷層（１３
）は、外槽（２と防液堤ｔ５１の隔接間隔内に形成した
、改造前の側部保冷層０αにおけるパーライト粒（１９
）断熱材を利用した新たな保冷層である。In Figure 3, the perlite concrete cold insulation layer (13
) is pearlite grains (19
) It is a new cold insulation layer that uses insulation material.
パーライトコンクリート保冷！（１３）は、第４０に示
すように、ノズル（１１）から引抜きホース（１２）を
通して抜き出したパーライト粒（１９）を接着剤または
固着剤等の造粒剤（２０）で固形化して、適当な大きさ
に加工造塊し、コンクリート骨材（２１）として、モル
タル（２２）と共に外槽ａと防液堤（９の隔接間隔内に
流入して形成する。Perlite concrete cold storage! (13) As shown in No. 40, the pearlite grains (19) extracted from the nozzle (11) through the extraction hose (12) are solidified with a granulating agent (20) such as an adhesive or a fixing agent, and then The concrete aggregate (21) is formed by processing it into a concrete aggregate (21) and flowing it together with mortar (22) into the outer tank a and the dike (9).
新規保冷層（１５）は、外槽（２の側部内面にグラスウ
ール材又は成型パーライト断熱材を積層して形成した保
冷層である。パーライトコンクリート保冷層〈１３）の
保冷効果を補充するためのものである。The new cold insulation layer (15) is a cold insulation layer formed by laminating glass wool material or molded perlite insulation material on the inner surface of the side of the outer tank (2).To supplement the cold insulation effect of the pearlite concrete cold insulation layer (13). It is something.
次に第３の再使用方法について説明する。Next, a third reuse method will be explained.
第５図において、パーライトコンクリート補強層（１６
）は、外槽（２１と防液堤（９の隔接間隔内に形成した
改造面の既設保冷層におけるパーライト粒（１９）断熱
材を利用した防液堤（５］の補強層である。In Figure 5, the perlite concrete reinforcement layer (16
) is a reinforcing layer of the liquid barrier (5) using the pearlite grain (19) insulation material in the existing cold insulation layer of the modified surface formed within the separation interval of the outer tank (21) and the liquid barrier (9).
パーライトコンクリート補強！（１６）は、既設保冷層
のパーライト粒（１９）全量を抜き出してその一部を、
外槽（２１と防液堤（５Ｉの隔接間隔内に移送し、池の
骨材（１８）と共に粉末状のパーライト粒（１９）をモ
ルタル（２２）に混入しパーライトコンクリート層に形
成したものである。Perlite concrete reinforcement! (16) extracts the entire amount of pearlite grains (19) from the existing cold insulation layer and part of it,
Transferred to the outer tank (21) and the dike (5I), powdered pearlite grains (19) were mixed with mortar (22) together with pond aggregate (18) to form a pearlite concrete layer. It is.
また、既設保冷層のパーライト粒（１９）を引き抜いた
後の内槽（１）と外槽■間の側部上縁に支持板（９）を
設けて形成される上部の屋根部保冷層（４）には、引き
抜いたままのパーライト粒（１９）が充填され、下部の
側部保冷層ααは、外槽Ｕの側部内周面に新規保冷層（
１７）を設けた後、そのままの空間として、補修空間（
１４〉に形成される。In addition, the upper roof cold insulation layer ( 4) is filled with pearlite grains (19) that have been pulled out, and the lower side cold insulating layer αα is a new cold insulating layer (
17), the repair space (
14>.
新規保冷層（１７）は、外槽■の側部内周面にグラスウ
ール材又はポリウレタン断熱材を積層して形成した新た
な保冷層である。The new cold insulating layer (17) is a new cold insulating layer formed by laminating glass wool material or polyurethane heat insulating material on the inner peripheral surface of the side of the outer tank (2).
（発明の効果）
この発明は以上のように構成されているので以下に記載
するような効果を生ずる。(Effects of the Invention) Since the present invention is configured as described above, it produces the effects described below.
請求項第１項の再使用方法では、パーライト粒は隣接す
る空間に場所を移すだけで保冷材としてそのまま使用さ
れるので、パーライト粒が広く分散してしまうこともな
く量的にも過不足のない再使用が可能となる。In the reuse method of claim 1, the pearlite grains are simply moved to an adjacent space and used as a cold insulating material, so the pearlite grains are not widely dispersed and there is no excess or deficiency in quantity. No reuse is possible.
請求項第２項の再使用方法では、コンクリート骨材とし
て使用でき、外槽内壁として保冷効果を持つ新たなパー
ライト粒の再使用方法の提供が可能となる。再度の使用
時の処理が容易となる利点を有する。In the reusing method of claim 2, it is possible to provide a new method for reusing pearlite grains that can be used as concrete aggregate and have a cooling effect as an inner wall of an outer tank. It has the advantage of being easy to process when used again.
請求項第３項の再使用方法では保冷効果と共に耐火性を
増した防液堤の提供が可能となる。According to the reuse method of claim 3, it is possible to provide a liquid barrier with increased fire resistance as well as a cold insulation effect.
第１図は改造後の防液堤を備えた二重壁低温タンクの断
面説明図、第２図はパーライト粒の移送を示す一部を欠
除した断面説明図、第３図は他の再生用方法を示す一部
を欠除した二重壁低温タンクの断面説明図、第４図はパ
ーライト粒の固形化を示す説明図、第５図は第３の再使
用方法を示す一部を欠除した二重壁式低温タンクの断面
説明図である。
１・・・・・・・・内 槽
２・・・・・・・・外 槽
５・・・・・・防液堤
６・・・・・・・・保冷層
７・・・・・・・・底盤基礎
８・・・・・・・・防液堤基礎
１０・・・・・・・・側部保冷層
１３ ・・・・・・・・ パーライトコンクリート 保
冷層１６ ・・・・・・・・ パーライトコンクリート
補強層１８・・・・・・・・骨 材
１９ ・・・・・・・・パーライト粒
２０・・・・・・・・造粒剤
２１ ・・・・・・・・ コンクリート骨材２２・・・
・・・・・モルタルFigure 1 is an explanatory cross-sectional diagram of a double-walled cryogenic tank equipped with a dike after modification, Figure 2 is an explanatory cross-sectional diagram with a part removed showing the transfer of pearlite grains, and Figure 3 is an explanatory diagram of another recycled tank. Fig. 4 is an explanatory diagram showing the solidification of pearlite grains, and Fig. 5 is an explanatory diagram with a part removed showing the third reuse method. FIG. 2 is a cross-sectional explanatory diagram of a double-walled low-temperature tank. 1...Inner tank 2...Outer tank 5...Dike 6...Cold layer 7...・・Bottom foundation 8・・・・Leak embankment foundation 10・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ ... ... Perlite concrete Reinforcement layer 18 ... Aggregate 19 ... Perlite grains 20 ... Granulating agent 21 ... Concrete Aggregate 22...
·····mortar
Claims (3)
して防液堤基礎を形成し、当該防液堤基礎の上に既設の
外槽と隔接して、鉛直上方に、筒状のプレストレストコ
ンクリートの防液堤を設けて防液堤を備えた二重壁低温
タンクに形成し、既設の外槽と防液堤の隔接間隔内に、
既設の内槽と外槽間に形成した保冷層のうち、側部保冷
層として使用したパーライト粒をそのまま抜き出して充
填し、新たな保冷層とすることを特徴とする既設の低温
貯槽におけるパーライト粒断熱材の再使用方法。(1) Form a dike foundation connected to the outer periphery of the bottom foundation of the existing double-shelled cryogenic storage tank, and on top of the dike foundation, separate from the existing outer tank, install a cylinder A pre-stressed concrete dike will be installed to form a double-walled cryogenic tank with a dike, within the separation interval between the existing outer tank and the dike.
Pearlite grains in an existing low-temperature storage tank characterized in that the pearlite grains used as a side cold insulation layer are directly extracted from the cold insulation layer formed between the existing inner tank and the outer tank and are filled to form a new cold insulation layer. How to reuse insulation.
おいて、パーライト粒に代えて、抜き出したパーライト
粒を造粒剤で適当な大きさに固形化し、コンクリート骨
材としてモルタルと混合して充填し、新たなパーライト
コンクリート保冷層とすることを特徴とする既設の低温
貯槽におけるパーライト粒断熱材の再使用方法。(2) In the method for reusing perlite grain insulation material described in item 1, instead of using perlite grains, the extracted perlite grains are solidified to an appropriate size with a granulating agent and mixed with mortar as concrete aggregate. A method for reusing perlite granule insulation material in an existing low temperature storage tank, characterized by filling it and forming a new perlite concrete cold insulation layer.
して防液堤基礎を形成し、当該防液堤基礎の上に既設の
外槽と隔接して、鉛直上方に、筒状のプレストレストコ
ンクリートの防液堤を設けて防液堤を備えた二重壁式低
温タンクに形成し、既設の外槽と防液堤の隔接間隔内に
、既設の内槽と外槽間に形成した保冷層として使用した
パーライト粒を抜き出し、他の骨材と共にモルタルを混
合して充填し、耐火性パーライトコンクリート補強層と
することを特徴とする既設の低温貯槽におけるパーライ
ト粒断熱材の再使用方法。(3) Form a dike foundation connected to the outer periphery of the bottom foundation of the existing double-shelled low-temperature storage tank, and install a cylinder vertically above the dike foundation, separated from the existing outer tank. A pre-stressed concrete dike will be installed to form a double-walled cryogenic tank with a dike, and between the existing inner tank and outer tank will be installed within the separation interval between the existing outer tank and the dike. Recycling of perlite grain insulation material in an existing low temperature storage tank, characterized by extracting pearlite grains used as a cold insulation layer formed in how to use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9808188A JP2610476B2 (en) | 1988-04-22 | 1988-04-22 | How to reuse pearlite grain insulation in existing low-temperature storage tanks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9808188A JP2610476B2 (en) | 1988-04-22 | 1988-04-22 | How to reuse pearlite grain insulation in existing low-temperature storage tanks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01269797A true JPH01269797A (en) | 1989-10-27 |
| JP2610476B2 JP2610476B2 (en) | 1997-05-14 |
Family
ID=14210396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9808188A Expired - Fee Related JP2610476B2 (en) | 1988-04-22 | 1988-04-22 | How to reuse pearlite grain insulation in existing low-temperature storage tanks |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2610476B2 (en) |
-
1988
- 1988-04-22 JP JP9808188A patent/JP2610476B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2610476B2 (en) | 1997-05-14 |
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