JPH0285188A - Liquid storage tank - Google Patents
Liquid storage tankInfo
- Publication number
- JPH0285188A JPH0285188A JP63233498A JP23349888A JPH0285188A JP H0285188 A JPH0285188 A JP H0285188A JP 63233498 A JP63233498 A JP 63233498A JP 23349888 A JP23349888 A JP 23349888A JP H0285188 A JPH0285188 A JP H0285188A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- storage tank
- wall
- floating roof
- inert gas
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims description 7
- 239000012528 membrane Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000011261 inert gas Substances 0.000 claims abstract description 16
- 238000007667 floating Methods 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 238000007789 sealing Methods 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 description 10
- -1 atomic couplants Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229920000554 ionomer Polymers 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000005033 polyvinylidene chloride Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（１）産業上の利用分野
本発明は液体を貯蔵する貯蔵槽、特にボイラ給水、原子
カプラント、化学工場等で使用される純水の貯蔵槽に関
する。DETAILED DESCRIPTION OF THE INVENTION (1) Industrial Application Field The present invention relates to a storage tank for storing liquid, particularly to a storage tank for pure water used in boiler feed water, atomic couplants, chemical plants, etc.
（２）従来の技術
従来純水等を貯蔵する貯蔵槽として有蓋タンク内に純水
を貯水しその上部に空間に不活性ガス例えば窒素（Ｎ、
）ガス等を封入したものが知られている。(2) Conventional technology Conventionally, pure water is stored in a covered tank as a storage tank for storing pure water, etc., and an inert gas such as nitrogen (N,
) Types filled with gas, etc. are known.
（３）発明が解決しようとする問題点
しかし上記従来の貯蔵槽においてはタンク内でその貯水
の上方の全面に不活性ガスを封入しているので、窒素ガ
ス等の不活性ガスの消費量が多大となり経費を要する問
題点を有している。(3) Problems to be solved by the invention However, in the conventional storage tank described above, inert gas is filled in the entire surface above the stored water in the tank, so the consumption of inert gas such as nitrogen gas is reduced. This has the problem of requiring a large amount of money and expense.
本発明は上記の問題点を解消し、完全に酸素（０，）や
異物の浸入を遮断して不活性ガスの消費量を少なくして
経済的な液体貯蔵槽を提供することを目的とする。The purpose of the present invention is to solve the above-mentioned problems and provide an economical liquid storage tank that completely blocks the intrusion of oxygen (0,) and foreign substances and reduces the consumption of inert gas. .
（４）問題点を解決するための手段
前記の目的を達成するために本発明は、貯蔵槽内に設け
た浮屋根の周縁上面と該貯蔵槽内壁上部との間に伸縮自
在のガスバリヤ性膜材を全周にわたって密着固定すると
共に、該貯蔵槽内壁と該膜材との間の空間部に不活性ガ
スを封入したことを特徴とする。(4) Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides a gas barrier film that is expandable and contractible between the upper peripheral surface of the floating roof provided in the storage tank and the upper part of the inner wall of the storage tank. The material is tightly fixed around the entire circumference, and an inert gas is filled in the space between the inner wall of the storage tank and the membrane material.
（５）作用
本貯蔵槽は浮屋根の周縁上面と貯蔵槽内壁上部との間が
伸縮自在のガスバリヤ性膜材により密着固定されており
、又該膜材と貯蔵槽の側壁等で形成される空間部の容積
を小さくしているため、不活性ガスの消費量も少なく、
高品位の純水を貯蔵することができる。(5) Function In this storage tank, the upper peripheral surface of the floating roof and the upper part of the inner wall of the storage tank are closely fixed by a stretchable gas barrier membrane material, and the membrane material and the side wall of the storage tank are formed. Since the volume of the space is small, inert gas consumption is also low.
Capable of storing high-grade pure water.
（６）実施例 以下、本発明の１実施例を第１図に従って説明する。(6) Examples An embodiment of the present invention will be described below with reference to FIG.
（１）は貯蔵槽を示し、該貯蔵槽（１）内には純水（２
）が流入管（１ａ）及び送出管（１ｂ）により貯木され
ており、液面には浮屋根（３）がフロート（４）により
浮上され且つシール材（５）により前記貯蔵槽（１）の
内壁と摺動している。（６）は伸縮自在な蛇腹状のカス
八リヤ性膜材を示し、該膜材（６）は、アクリロニトリ
ルブタジェンゴム（Ｎ Ｂ Ｒ）クロロスルホン化ポリ
エチレン（Ｃ５Ｍ）、ブチルゴム（Ｉ Ｉ Ｒ） 、ク
ロロブレンゴム（ＣＲ）、 ポリ塩化ビニルエラスト
マー（ＰｖＣ）等のガスバリア性ゴムシート、又はナイ
ロン ポリエステル、ポリオレフィン等の基布に前記ガ
スバリア性のゴムシートを積層したもの、又はポリアミ
ドとポリエチレン（ＰＡ／ＰＥ）の積層フィルムシート
、エチレンビニルアルコール共重合体とポリエチレン（
ＥＶＡＬ／ＰＥ）の積層フィルムシート、ポリ塩化ビニ
リデンとポリオレフィン（ＰＶＤＣ／ＰＯ）の積層フィ
ルムシート、ポリアミドとアイオノマーとポリエチレン
（ＰＡ／アイオノマー／ＰＥ）のＭＷフィルムシート、
ポリアミドとエチレンビニルアルコール共重合体とポリ
エチレン（ＦＡ／Ｅ ＶＡ Ｌ／ＰＥ） の積層フィル
ムシー１−、ホリエチレンテレフタレートとエチレンビ
ニルアルコール共重合体とポリエチレン（ＰＥＴ／ＥＶ
ＡＬ／ＰＥ）の積層フィルムシート等のガスバリヤ性積
層フィルムシート又は前記ゴムシートや基布に該積層フ
ィルムシートを積層したものからなり、前記膜材（６）
は前記貯蔵槽（１）の内壁の全周にわたって一端を前記
浮屋根（３）の周縁部に他端を該貯蔵槽（１）の内壁上
部に密着固定されている。（７）は不活性ガス圧力調整
用シールポットを示し、該シールポット（７）により均
圧’ｔ （７ａ）を介して前記膜材（６）と内壁及び浮
屋根（３）の周縁とで区画された空間部（８）に窒素（
Ｎ、）ガス等が封入されている。尚、不活性ガスとして
は窒素（Ｎ、）のほかアルゴン、ネオン、炭酸ガス（ｃ
Ｏｚ）等があげられる。尚、シール材（５）はポリウ
レタン（ＰＵ）、ポリテトラフルオロエチレン（ＰＴＦ
Ｅ）、ポリフッ化ヒニリデン（ＰＶＤＦ）等の各種形状
の発泡体、中空体又は積層体からなり、又前記シールボ
ッ］・封入液は水、流動パラフィン、エチレングリコー
ル（Ｅ Ｇ）又はポリプロピレングリコール（ＰＧ）等
からなる。(1) indicates a storage tank, and the storage tank (1) contains pure water (2
) are stored by an inflow pipe (1a) and a delivery pipe (1b), a floating roof (3) is floated on the liquid surface by a float (4), and a sealing material (5) is used to seal the storage tank (1). It is sliding against the inner wall. (6) shows a flexible, bellows-like, elastic membrane material, and the membrane material (6) is made of acrylonitrile butadiene rubber (NBR), chlorosulfonated polyethylene (C5M), butyl rubber (IIR). , chloroprene rubber (CR), polyvinyl chloride elastomer (PvC), etc., or a base fabric such as nylon, polyester, polyolefin, etc. laminated with the gas barrier rubber sheet, or polyamide and polyethylene (PA/ PE) laminated film sheet, ethylene vinyl alcohol copolymer and polyethylene (
EVAL/PE) laminated film sheet, polyvinylidene chloride and polyolefin (PVDC/PO) laminated film sheet, polyamide, ionomer, and polyethylene (PA/ionomer/PE) MW film sheet,
Laminated film sheet of polyamide, ethylene vinyl alcohol copolymer and polyethylene (FA/EVAL/PE) 1-, polyethylene terephthalate, ethylene vinyl alcohol copolymer and polyethylene (PET/EV
A gas barrier laminated film sheet such as a laminated film sheet of AL/PE) or a laminated film sheet laminated on the rubber sheet or base fabric, and the membrane material (6)
is tightly fixed at one end to the peripheral edge of the floating roof (3) and at the other end to the upper part of the inner wall of the storage tank (1) over the entire circumference of the inner wall of the storage tank (1). (7) indicates a seal pot for adjusting the inert gas pressure, and the seal pot (7) equalizes the pressure 't (7a) between the membrane material (6) and the inner wall and the periphery of the floating roof (3). Nitrogen (
N,) Gas etc. are sealed. In addition to nitrogen (N), argon, neon, and carbon dioxide (c) are used as inert gases.
Oz) etc. In addition, the sealing material (5) is polyurethane (PU), polytetrafluoroethylene (PTF).
E), polyhynylidene fluoride (PVDF), etc., made of foams, hollow bodies, or laminates of various shapes, and the seal box]・Enclosed liquid is water, liquid paraffin, ethylene glycol (EG), or polypropylene glycol (PG). Consists of etc.
上記のように構成された液体貯蔵槽は槽内の純水（２）
の増減により浮屋根（３）が上下に移動すると共に、膜
材（６）が伸縮され空間部（８）の容積も増減する。そ
して該空間部（８）の増減に対応して封入されている不
活性カスの圧力の変化を圧力制御系（９）を具備するシ
ールポット（７）により調節している。The liquid storage tank configured as above is pure water (2) inside the tank.
As the floating roof (3) moves up and down due to the increase/decrease in , the membrane material (6) expands and contracts, and the volume of the space (8) also increases/decreases. A seal pot (7) equipped with a pressure control system (9) adjusts the change in the pressure of the enclosed inert scum corresponding to the increase or decrease in the space (8).
従って槽内の純水は浮屋根（３）と膜材（６）及び不活
性ガスにより大気と完全に遮断され、酸素（Ｏ２）や外
部からの異物に対してシールされる。又膜（６）と貯蔵
槽（１）の側壁等で形成される空間部（８）の容積が小
さいので不活性ガスの消費量が少なくてすむ。Therefore, the pure water in the tank is completely isolated from the atmosphere by the floating roof (3), membrane material (6), and inert gas, and is sealed against oxygen (O2) and foreign substances from the outside. Furthermore, since the volume of the space (8) formed by the membrane (6) and the side wall of the storage tank (1) is small, the amount of inert gas consumed can be reduced.
（７）発明の効果
本発明は前記のように浮屋根の周縁上面と貯蔵槽内壁上
部との間に伸縮自在のガス八リヤ性膜材を密着固定し、
該膜材と側壁等からなる空間部に不活性ガスを封入した
ので、貯蔵槽内の純水に対し完全に酸素（０よ）や異物
の浸入を遮断し得ると共に、不活性ガスの消費量が削減
でき高品位の純水を廉価に提供できる効果を有する。(7) Effects of the Invention As described above, the present invention tightly fixes a stretchable gas barrier membrane material between the upper peripheral surface of the floating roof and the upper inner wall of the storage tank,
Since the space formed by the membrane material and side walls is filled with inert gas, it is possible to completely block the entry of oxygen (0) and foreign substances into the pure water in the storage tank, and to reduce the amount of inert gas consumed. This has the effect of reducing water consumption and providing high-quality pure water at a low price.
第１図は本発明の１実施例を示す概略断面図である。 （１）・・・貯蔵槽 （３）・・・浮屋根 （６）・・・膜材 （８）・・・空間部 三井建設株式会社 FIG. 1 is a schematic sectional view showing one embodiment of the present invention. (1)...Storage tank (3)...Floating roof (6)...Membrane material (8)...Space part Mitsui Construction Co., Ltd.
Claims (1)
との間に伸縮自在のガスバリヤ性膜材を全周にわたって
密着固定すると共に、該貯蔵槽内壁と該膜材との間の空
間部に不活性ガスを封入したことを特徴とする液体貯蔵
槽。A stretchable gas barrier membrane material is closely fixed over the entire circumference between the upper peripheral surface of a floating roof provided in the storage tank and the upper part of the inner wall of the storage tank, and a space is provided between the inner wall of the storage tank and the membrane material. A liquid storage tank characterized in that an inert gas is filled in the tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63233498A JPH0285188A (en) | 1988-09-20 | 1988-09-20 | Liquid storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63233498A JPH0285188A (en) | 1988-09-20 | 1988-09-20 | Liquid storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0285188A true JPH0285188A (en) | 1990-03-26 |
Family
ID=16955963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63233498A Pending JPH0285188A (en) | 1988-09-20 | 1988-09-20 | Liquid storage tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0285188A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7779781B2 (en) * | 2003-07-31 | 2010-08-24 | Asml Netherlands B.V. | Lithographic apparatus and device manufacturing method |
| CN113124003A (en) * | 2021-03-22 | 2021-07-16 | 北京天地玛珂电液控制系统有限公司 | Mine underground pure water tank |
-
1988
- 1988-09-20 JP JP63233498A patent/JPH0285188A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7779781B2 (en) * | 2003-07-31 | 2010-08-24 | Asml Netherlands B.V. | Lithographic apparatus and device manufacturing method |
| CN113124003A (en) * | 2021-03-22 | 2021-07-16 | 北京天地玛珂电液控制系统有限公司 | Mine underground pure water tank |
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