JPS60108725A - Detecting method of leakage of liquid - Google Patents
Detecting method of leakage of liquidInfo
- Publication number
- JPS60108725A JPS60108725A JP21740783A JP21740783A JPS60108725A JP S60108725 A JPS60108725 A JP S60108725A JP 21740783 A JP21740783 A JP 21740783A JP 21740783 A JP21740783 A JP 21740783A JP S60108725 A JPS60108725 A JP S60108725A
- Authority
- JP
- Japan
- Prior art keywords
- indicator
- liquid
- chemical
- joint
- leakage
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
Abstract
Description
【発明の詳細な説明】
（８１発明の技術分野
本発明は、薬液配管を接続する継手の接合部における、
該薬液の廂れを検知する方法に関す。Detailed Description of the Invention (81 Technical Field of the Invention The present invention relates to
The present invention relates to a method for detecting deviation of the chemical solution.
（ｂｌ 技術の背景
工業製品の製造において、薬液を使用する場合が少なく
ない。例えば、゛しＶ体装置のｒ！Ａｉｋｌにおいては
、硫酸、硝酸、塩酸、弗酸、燐酸、過酸化水素、苛性ソ
ーダなど、多くの薬液を使用している。(bl Technology background) In the manufacture of industrial products, chemical solutions are often used.For example, in the V-body device r! Many chemicals are used, such as:
これらの薬液を輸送する配管の殆どは、組子による接続
部を有しており、本来有ってはならない該薬液の漏れ事
故は、多くの場合、該接続部に発生する。そして、その
漏れにより、場合によっては、大事に至ることがある。Most of the piping for transporting these chemical solutions has connections using muntins, and leakage accidents of the chemical solutions that should not occur often occur at these connections. In some cases, this leakage can lead to serious problems.
この大事の予防策としては、定期点検などを行い、前記
漏れの〒期発見に努めるのが一般である。As an important preventive measure, it is common to conduct periodic inspections and try to find the earliest possible leaks.
（Ｃ１従来技術と問題点
前記定期点検などにおｔＪる薬液配管の液漏れ検知の従
来の方法は、該配管の相手部を「１視点検し、薬液流出
存在の有無により検知する方法である。(C1 Prior Art and Problems The conventional method for detecting liquid leakage from chemical liquid piping used in periodic inspections, etc., is to inspect the other part of the pipe from one point of view and detect the presence or absence of chemical liquid leakage. .
この方法による場合は、薬液の微量流出、即ち、しみ出
し程度では通常発見困難で、流出を発見出来るのは、滴
状またはそれ以上になっている場合であり、然も、可な
り丁寧に注意深く点検する必要がある欠点を有する。そ
して、ここで見逃した流出は、その時点では問題ないが
、次の点検までの間に大きくなり大事に繋がりがねない
問題がある。When using this method, it is usually difficult to detect a small amount of chemical solution leakage, that is, a seepage, and the leakage can only be detected when it is in the form of drops or larger, and it must be done very carefully and carefully. Has shortcomings that need to be checked. A leak that is overlooked here is not a problem at that point, but it becomes a problem that could become bigger and lead to something more serious before the next inspection.
（ｄｌ 発明の目的
本発明の目的は上記従来の欠点に鑑み、薬液配管継手部
の目視点検による液漏れ検知において、しみ出し程度の
微量流出であっても、容易に発見可能な液漏れ検知方法
を提供するにある。(dl) Purpose of the Invention In view of the above-mentioned conventional drawbacks, the purpose of the present invention is to provide a method for detecting liquid leakage that can easily detect even a small amount of leakage, such as seepage, in liquid leakage detection by visual inspection of chemical liquid piping joints. is to provide.
（ｅｌ 発明の構成
上記目的は、薬液配管を接続する継手の接合部に、予め
、該薬液により色調が変化する指示体を外部から視認出
来るように配置し、該指示体の色調変化の視認により、
該接合部における該薬液の漏れを検知することを特徴と
する液漏れ検知方法によって達成される。(el) Structure of the Invention The above object is to place an indicator whose color tone changes depending on the chemical liquid in advance at the joint of a joint that connects a chemical liquid pipe so that it can be visually recognized from the outside, and to visually recognize the change in color tone of the indicator. ,
This is achieved by a liquid leakage detection method characterized by detecting leakage of the chemical liquid at the joint.
本発明によれば、前記指示体は、前記接合部の接合面端
部の全域に接した環状であり、その性状は、液を透過さ
せる固体であるか、または、液体であるのが望ましい。According to the present invention, the indicator has an annular shape that contacts the entire area of the end of the joint surface of the joint part, and it is desirable that the indicator is a solid that allows liquid to pass therethrough or a liquid.
それは、前記色調変化を視認出来るのは通常前記指示体
の表面であるため、前記接合部の接合面端部の何れの個
所からでも漏れ出た前記薬液が、速やかに該指示体の表
面に致達することが望ましいからで、液を透過さ−１る
固体の場合には該薬液の透過により、また、液体の場合
には該薬液の混合により、それが可能になるからである
。This is because the color tone change is usually visible on the surface of the indicator, so the chemical solution leaking from any part of the joint surface end of the joint quickly reaches the surface of the indicator. This is because, in the case of a solid that is permeable to a liquid, this can be achieved by permeation of the chemical liquid, and in the case of a liquid, this can be achieved by mixing the chemical liquid.
そして、前記薬液のしみ出し程度の微量流出であっても
前記指示体表面の色調が変化するので、目視点検によっ
て、該薬液の流出存在を容易に発見することが可能にな
る。Since the color tone of the surface of the indicator changes even if a small amount of the chemical solution leaks out, the existence of the spilled chemical solution can be easily detected by visual inspection.
（ｆｌ 発明の実施例 以下本発明の実施例を図により説明する。(fl Embodiments of the invention Embodiments of the present invention will be described below with reference to the drawings.
第１図＋８１はフランジ継手において本発明の方法を適
用した一実施例の断面図、第１図ｆｂ）はそれに使用す
る指示体の平面図、第２図はジョイン日徒手において本
発明の方法を適用した一実施例の断面図、第３図はジヨ
イント継手において本発明の方法を適用した伯の実施例
の断面図で、１ａ、１ｂはライニング、２ｄ、２ｂはフ
ランジ付き管、３はパ。Fig. 1+81 is a sectional view of an embodiment in which the method of the present invention is applied to a flange joint, Fig. 1 fb) is a plan view of an indicator used therein, and Fig. 2 is a sectional view of an embodiment in which the method of the present invention is applied to a flange joint. Fig. 3 is a sectional view of an embodiment in which the method of the present invention is applied to a joint joint, 1a and 1b are linings, 2d and 2b are flanged pipes, and 3 is a pipe.
キン、４はポルＩ・、５はプ諏１・、６は指示体、７８
．７ξ）ハ管、８ばジョイン１−４１１手本体、９はふ
くろナツト、９ａは透孔、９ｂは栓、１ｏ、１１は指示
体をそれぞれ示す。Kin, 4 is Pol I, 5 is Pusu 1, 6 is referent, 78
．． 7ξ) C pipe, 8 joint 1-411 hand body, 9 bag nut, 9a through hole, 9b plug, 1o and 11 indicators, respectively.
第１図（ａｌに示すフランジ継手による接続は、ライニ
ング１ａ、Ｉｂを被着したフランジ付き管２ａ、２ｂの
フランジ部がライニングＩａ、、Ｉｂ、パツキン３を介
して接合され、ボルト４とナツト５とで締め付げられて
なされている。この場合、本発明では、第１図（ｂｌに
示す環状の指示体６を第１図（８１図示のように追加し
て取付けである。In the connection using the flange joint shown in FIG. In this case, in the present invention, the annular indicator 6 shown in FIG. 1 (bl) is additionally attached as shown in FIG. 1 (81).
ここで、指示体６ば、例えば、水素イオン濃度（ｐｌ＋
）試験ＩＪＥ（東洋濾に裂）の大きなものを裁断加工し
複数枚積層したもので、その内側はライニングＩａ、
ｌｂとパツキン３との端面に接し、外側はフランジ付き
管２ａ、２ｂのフランジ外径より僅かに大きくなってい
る。Here, the indicator 6 is, for example, hydrogen ion concentration (pl+
)Test IJE (Toyo Roshi) large pieces are cut and laminated with multiple pieces, and the inside is lined Ia,
lb and the packing 3, and its outer side is slightly larger than the flange outer diameter of the flanged tubes 2a and 2b.
この指示体６を取付けた場合には、酸またはアルカリで
ある薬液が、ライニング１ａ、１ｂとパフキン３との間
から、若しくは、ライニング１８、Ｉｂとフランジ付き
管２ａ、２ｂとの間から流出すると、その流出が微量で
あっても１斤示体６を染み通り、指示体６のり１側表面
の色調を変化さゼる。この変化は視認が容易なので、目
視点検によって、該薬液の流出存在を容易に発見ずろこ
とが可能になる。When this indicator 6 is installed, if an acid or alkali chemical solution flows out from between the linings 1a, 1b and the puffkin 3, or between the linings 18, Ib and the flanged pipes 2a, 2b. Even if the leakage amount is small, it permeates through the indicator 6 and changes the color tone of the surface of the indicator 6 on the glue 1 side. Since this change is easy to visually recognize, the presence of leakage of the chemical solution can be easily detected by visual inspection.
第２図に示すジヨイント継手の接続は、ジョインｌ−継
手本体８にふ（ろナツト９をねし止めしてなるジヨイン
ト継手に、管７ａ、７ｂが挿入され、ふくろナツト９が
ねじ締めされてなされている。この場合、本発明では、
環状の指示体］０を図示のように追加して取付けである
。The joint joint shown in FIG. 2 is connected by inserting the pipes 7a and 7b into the joint joint, which is formed by screwing a round nut 9 onto the joint body 8, and tightening the round nut 9. In this case, in the present invention,
Annular indicator] 0 is added and attached as shown.
ここで、指示体１０は、例えば、水素イオン濃度（ｐＨ
）試験紙（東洋濾紙！！りの大きなものを裁断加工した
もので、その内側はジヨイント組手本体８のねじ面に接
し、外側はふくろプ諏１・９の外形より僅かに大きくな
っている。Here, the indicator 10 has a hydrogen ion concentration (pH
) Test paper (Toyo filter paper!! It is cut from a large piece of paper, the inside of which is in contact with the threaded surface of the joint kumite body 8, and the outside is slightly larger than the outline of Fukuropu Sui 1 and 9. .
酸またはアルカリである薬ｌ＾が、ジヨイント継手本体
８とふくろナツト９との間から流出した場合、指示体１
０を取付けであると、第１図で示したのと同様に、該薬
液の流出存在を容易に発見することが可能になる。If the acid or alkali drug l^ flows out from between the joint joint body 8 and the bag nut 9, the indicator 1
If 0 is the attachment, it becomes possible to easily discover the presence of the chemical solution leaking, as shown in FIG.
第２図に示すジヨイント継手にはプラスチックス（例え
ば、テフロンなど）製で透明であるか半透明であるもの
が多い。このことを利用した他の実施例が第３図である
。ジヨイント継手本体８のねじ先端部にはふ（ろナツト
９との間に空間があるので、ふくろナツト９に予め透孔
９ａを形成しておき、管７ａ、７ｂを接続した後、例え
ば、酸またはアルカリと混合して色調変化する液体のｐ
Ｈ比色測定液（東洋濾紙！！りを透孔９ａから注入し、
栓９ｂで透孔９ａの入口を塞いで注入されたｐＨ比色測
定液の流出を抑えると、該ｐＨ比色測定液が前記薬液の
流出を知らせる指示体１１になる。ここで前記注入する
ものを液体にするのは、前記流出した薬液が速やかに混
合し、前記色調変化を外側から見やすくするためである
。Many of the joints shown in FIG. 2 are made of plastic (eg, Teflon, etc.) and are transparent or translucent. Another embodiment utilizing this fact is shown in FIG. Since there is a space between the threaded end of the joint body 8 and the nut 9, a through hole 9a is formed in the nut 9 in advance, and after connecting the pipes 7a and 7b, for example, an acid Or liquid p that changes color when mixed with alkali.
Inject the H colorimetric measurement liquid (Toyo Roshi!!) through the through hole 9a,
When the inlet of the through hole 9a is blocked with the stopper 9b to suppress the outflow of the injected pH colorimetric measurement liquid, the pH colorimetric measurement liquid becomes an indicator 11 that indicates the outflow of the chemical solution. The reason why the injected material is made into a liquid is that the outflowing chemical solution mixes quickly and the color tone change is easily seen from the outside.
ｆｇｌ 発明の効果
以上に説明したように、本発明による構成によれば、薬
液配管組子部の目視点検による液漏れ検知において、し
め出し程度の倣ｍ流出であっても、容易に発見可焼な液
漏れ検知方法を提イＪ（することが出来、該薬液配管の
保守点検の簡便化と、大事に繋がる事故の予防性１；１
＋を可ｆｉヒにさ−けるすＩ果がある。fgl Effects of the Invention As explained above, according to the configuration according to the present invention, when detecting liquid leakage by visual inspection of the chemical liquid piping muncture part, even if the leakage is at the level of squeezing, it can be easily detected and combustible. We propose a method for detecting liquid leakage, which simplifies maintenance and inspection of the chemical liquid piping and prevents serious accidents.
There is an effect that allows + to be used.
第１図ｆａｔはフランジ１１１゛丁にＪ３いて本発明の
方法を適用した一実施例の断面図、第１図中）はそれに
使用する指示体の平面図、第２図はジョイン］・継手に
おいて本発明の方法を適用した一実施例の断面図、第３
図はジョイン目ｌ゛手において本発明の方法を適用した
他の実施例の断面図である。
図面において、Ｉａ、 Ｉｂばライニング、２ａ、２１
）はフランジ付き管、３はパツキン、４はボルト、５は
ナンド、６は指示体、７ａ、 ７ｂは管、８はジヨイン
ト継手本体、９はふくろナソ１−１９ａは透孔、９ｈは
栓、１０．１１は指示体をそれぞれ示す。Fig. 1 fat is a sectional view of an embodiment in which the method of the present invention is applied to J3 on flange 111゛. Cross-sectional view of an embodiment to which the method of the present invention is applied, No. 3
The figure is a sectional view of another embodiment in which the method of the present invention is applied in the first step of the join. In the drawings, Ia, Ib lining, 2a, 21
) is a flanged tube, 3 is a packing, 4 is a bolt, 5 is a pad, 6 is an indicator, 7a, 7b are tubes, 8 is a joint joint body, 9 is a bag naso 1-19a is a through hole, 9h is a plug, 10.11 respectively indicate indicators.
Claims (4)
液により色調が変化する指示体を外部から視認出来るよ
うに配置し、該指示体の色調変化の視認により、該接合
部における該薬液の漏れを検知することを特徴とする液
漏れ検知方法。(1) At the joint of the joint that connects the chemical liquid piping, an indicator whose color tone changes depending on the chemical liquid is placed in advance so that it can be visually recognized from the outside. A liquid leak detection method characterized by detecting a chemical liquid leak.
接した環状であることを特徴とする特許請求の範囲第（
１）項記載の液漏れ検知方法。(2) The indicator is annular in contact with the entire area of the end of the joint surface of the joint part,
Liquid leakage detection method described in section 1).
ることを特徴とする特許請求の範囲第（１）項または第
（２）項記載の液漏れ検知方法。(3) The liquid leak detection method according to claim (1) or (2), wherein the indicator is a solid that allows liquid to pass through it.
る特許請求の範囲第（１）項または第（２）項記載の液
漏れ検知方法。(4) The liquid leak detection method according to claim (1) or (2), wherein the indicator is liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21740783A JPS60108725A (en) | 1983-11-18 | 1983-11-18 | Detecting method of leakage of liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21740783A JPS60108725A (en) | 1983-11-18 | 1983-11-18 | Detecting method of leakage of liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60108725A true JPS60108725A (en) | 1985-06-14 |
Family
ID=16703708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21740783A Pending JPS60108725A (en) | 1983-11-18 | 1983-11-18 | Detecting method of leakage of liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60108725A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05126669A (en) * | 1991-04-26 | 1993-05-21 | Kiyohara Masako | Control unit with seal section breakage detecting system |
| JP2004278564A (en) * | 2003-03-13 | 2004-10-07 | Toyo Stainless Kogyo Kk | Diaphragm valve |
| CN111120880A (en) * | 2019-12-30 | 2020-05-08 | 清华大学 | Active safety protection system and method for hydrogen leakage |
-
1983
- 1983-11-18 JP JP21740783A patent/JPS60108725A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05126669A (en) * | 1991-04-26 | 1993-05-21 | Kiyohara Masako | Control unit with seal section breakage detecting system |
| JP2004278564A (en) * | 2003-03-13 | 2004-10-07 | Toyo Stainless Kogyo Kk | Diaphragm valve |
| CN111120880A (en) * | 2019-12-30 | 2020-05-08 | 清华大学 | Active safety protection system and method for hydrogen leakage |
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