JP2574924B2 - Water leak sensor - Google Patents
Water leak sensorInfo
- Publication number
- JP2574924B2 JP2574924B2 JP2099309A JP9930990A JP2574924B2 JP 2574924 B2 JP2574924 B2 JP 2574924B2 JP 2099309 A JP2099309 A JP 2099309A JP 9930990 A JP9930990 A JP 9930990A JP 2574924 B2 JP2574924 B2 JP 2574924B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- water leakage
- detection layer
- sensor
- leak
- 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
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Description
【発明の詳細な説明】 《産業上の利用分野》 本発明は、配水管等からの漏水の発生を検知し得ると
ともに漏水発生箇所を容易に発見し得る漏水センサに関
するものである。DETAILED DESCRIPTION OF THE INVENTION << Industrial application field >> The present invention relates to a water leak sensor capable of detecting the occurrence of water leakage from a water distribution pipe or the like and easily finding the location of the water leakage.
《従来の技術》 従来の漏水センサは、透水性を有する帯状の布の長手
方向に沿わせて、その表面にまたは布と布との間に、一
対または複数対の電極を並行に配設して構成されてい
る。そして、この漏水センサは漏水の検知が必要とされ
る箇所、例えば配水管系等に沿ってその外側に張り付け
られる等して配設され、その電極は警告音を発するブザ
ー装置や警告ランプを点灯する表示装置等に接続される
ようになっている。<< Conventional Technology >> A conventional water leakage sensor has a pair or a plurality of pairs of electrodes arranged in parallel along the longitudinal direction of a water-permeable band-shaped cloth or on the surface thereof or between cloths. It is configured. The water leak sensor is disposed at a place where water leak detection is required, for example, by being attached to the outside along a water distribution pipe system or the like, and its electrode lights a buzzer device or a warning lamp that emits a warning sound. To be connected to a display device.
つまり、漏水センサは配水管系に漏水が発生した場合
には、その漏水が当該漏水センサの帯布に浸透してこれ
を湿潤させ、これにより電極間が導通されることによっ
てその漏水の発生を検知するようになっていて、電極間
が導通されて漏水の発生を検知するとブザー装置を吹鳴
されたり、あるいは表示装置を点灯させたりしてその漏
水の発生を警告するようになっている。In other words, when a water leak occurs in the water distribution pipe system, the water leak sensor penetrates and wets the bandage of the water leak sensor, and the water leak sensor becomes conductive between the electrodes, thereby preventing the water leak from occurring. When the occurrence of water leakage is detected due to conduction between the electrodes, the buzzer device is sounded or the display device is turned on to warn of the occurrence of the water leakage.
そして、上記のようにして漏水の発生が警告された場
合には、その漏水が発生した配水管系などを目視点検し
て当該漏水発生箇所を発見し、その修繕を行うようにし
ている。Then, when the occurrence of water leakage is warned as described above, the water distribution pipe system or the like in which the water leakage has occurred is visually inspected to find the location where the water leakage has occurred, and the water leakage is repaired.
《考案が解決しようとする課題》 ところで、特に水分を嫌う場所、例えば電算室等にお
いては、水漏れはそれがたとえ少量であっても大きな損
害をもたらす危険があり、その漏水発生箇所はできるだ
け短時間内に発見して速やかに修繕する必要がある。《Problems to be solved by the invention》 By the way, especially in a place that dislikes moisture, for example, in a computer room, even if the amount is small, there is a danger of causing great damage. It needs to be discovered in time and repaired promptly.
しかし、上記従来の漏水センサでは漏水が発生したこ
とはただちに検知し得るものの、その漏水発生箇所は当
該水漏れの発生した配水管系などを目視点検して、その
漏水センサの湿潤部位を見つけ出すことによって認知さ
れるものであるから、床下や天井裏等の暗所に配設され
る配水管系に発生した漏水箇所をその湿潤部位を頼りに
短時間内に発見することは極めて困難なものとなってい
た。However, although the occurrence of water leakage can be immediately detected by the above-mentioned conventional water leakage sensor, the location of the water leakage should be visually inspected for the water distribution pipe system where the water leakage has occurred, and a wet site of the water leakage sensor must be found. It is extremely difficult to find a leak point in a water distribution system installed in a dark place such as under the floor or above the ceiling in a short time by relying on the wet part. Had become.
このため、上記のように水を嫌う場所においては、そ
の漏水発生箇所の発見が遅れて漏水による大きな損害を
招く虞があった。For this reason, in a place that dislikes water as described above, there is a possibility that the discovery of the location where the water leak has occurred may be delayed, causing serious damage due to the water leak.
本発明は上記問題点に鑑みてなされたものであって、
その目的は漏水があった場合に、これをただちに検知で
きるとともに、その漏水箇所を短時間内に発見すること
が容易な漏水センサを提供することにある。The present invention has been made in view of the above problems,
It is an object of the present invention to provide a water leak sensor that can immediately detect a water leak when it is present and easily find the leak location within a short time.
《課題を解決するための手段》 上記問題点を解決するため、本発明では漏水センサを
次のように構成する。<< Means for Solving the Problems >> In order to solve the above problems, in the present invention, the water leakage sensor is configured as follows.
すなわち、透水性を有する帯布にその長手方向に沿っ
て電極が並行に配設され、帯布が湿潤されると前記電極
が導通状態になる漏水センサにおいて、前記帯布に、水
分に反応して変色する漏水検出層を形成すると共に、該
漏水検出層の外側を被覆して当該漏水検出層と雰囲気と
の接触を断つ水溶性の保護層を形成した。That is, in a water leakage sensor in which electrodes are arranged in parallel along the longitudinal direction of a water-permeable cloth and the electrodes become conductive when the cloth is wetted, the water-reactive sensor reacts to moisture. In addition to forming a water leakage detection layer that discolors, a water-soluble protective layer covering the outside of the water leakage detection layer and cutting off the contact between the water leakage detection layer and the atmosphere was formed.
ここで、水分に反応して変色する前記漏水検出層は、
例えば無水硫酸銅を帯布の表面等に塗布して形成し、ま
た水溶性の前記保護層は前記漏水検出層を例えばデンプ
ン糊で被覆して形成すると良い。Here, the water leakage detection layer that changes color in response to moisture,
For example, the protective layer may be formed by coating anhydrous copper sulfate on the surface of the cloth or the like, and the water-soluble protective layer may be formed by coating the water leakage detecting layer with, for example, starch paste.
《作 用》 本発明に係わる漏水センサでは、従来と同様に帯布に
漏水による水が浸透して湿潤すると電極間が導通してそ
の漏水が検知されるとともに、帯布に形成した漏水検出
層が水と反応して変色し、当該湿潤部位の視認が容易に
なる。すなわち、漏水検出層を無水硫酸銅で形成した場
合には、白色粉末の無水硫酸銅が水と反応して［Cu（H2
O）］2+なる青色の銅イオンが生成され、漏水検出層が
青色に変化することによって漏水発生箇所の発見が容易
になる。<Operation> In the water leakage sensor according to the present invention, when water due to water leakage permeates and wets the woven cloth as in the related art, the electrodes are conducted to detect the water leakage, and the water leakage detection layer formed on the woven cloth is formed. Reacts with water and changes color, making it easy to visually recognize the wet site. That is, when the water leakage detection layer is formed of anhydrous copper sulfate, anhydrous copper sulfate of white powder reacts with water to form [Cu (H 2
O)] Blue copper ions of 2+ are generated, and the leak detection layer changes to blue, thereby facilitating the finding of a leak occurrence location.
また、水分と反応して変色する漏水検出層はその外側
を水溶性の保護層で被覆されて雰囲気との接触が断たれ
ているので、漏水検出層が雰囲気中の水蒸気等と反応し
て変色することが防止される。そして、漏水が発生した
場合には、例えばデンプン糊等でなる水溶性の保護層が
その漏水によって溶けて水が帯布に浸透し、この水によ
って電極が導通されると共に漏水検出層が反応して変色
する。In addition, the water leakage detection layer, which changes color when it reacts with moisture, is coated on the outside with a water-soluble protective layer and is disconnected from the atmosphere, so the water leakage detection layer reacts with water vapor in the atmosphere to change color. Is prevented. When water leakage occurs, the water-soluble protective layer made of, for example, starch paste or the like is dissolved by the water leakage and water penetrates into the bandage, and this water conducts the electrodes and reacts with the water leakage detection layer. Discolors.
《実 施 例》 以下に、本発明の好適な実施例について添附図面を参
照して説明する。<< Embodiment >> A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.
第１図〜第４図は本発明に係わる漏水センサを示す。
図示するように、漏水センサ２は透水性を有する帯布４
を２枚張り合せ、この２枚の帯布４の間に第１図に示す
ように一対の裸電線様の電極６を帯布４の長手方向に沿
って並行に配設することによって構成されている。1 to 4 show a water leak sensor according to the present invention.
As shown in the figure, the water leak sensor 2 is a permeable cloth 4 having water permeability.
And a pair of bare wire-like electrodes 6 are arranged in parallel along the longitudinal direction of the band cloth 4 between the two band cloths 4 as shown in FIG. ing.
一対の電極６は交ることなく、それらの一端はブザー
装置８に接続されるようになっている。なお、上記電極
６は帯布４外で各電極6,6間が導通することのないよう
に、互いに絶縁されている。One end of the pair of electrodes 6 is connected to the buzzer device 8 without intersecting. The electrodes 6 are insulated from each other so that the electrodes 6, 6 are not electrically connected outside of the cloth 4.
ところで、第２図に示すように、上記漏水センサ２に
はその帯布４の片側の表面に、水分と反応して変色する
漏水検出層10が設けられている。当該実施例にあって
は、この漏水検出層10は白い粉末状の無水硫酸銅CuSO4
が帯布４の全長に亘って一様に塗布されて形成されてい
る。By the way, as shown in FIG. 2, the water leakage sensor 2 is provided with a water leakage detection layer 10 which reacts with moisture and changes its color on one surface of the band cloth 4. In this embodiment, the water leakage detection layer 10 is a white powdery anhydrous copper sulfate CuSO 4
Is uniformly applied over the entire length of the belt cloth 4.
またさらに塗布４には、上記無水硫酸銅CuSO4でなる
漏水検出層10の外側を被覆して、当該漏水検出層10と雰
囲気との接触を断つ水溶性の保護層12が設けられてお
り、当該実施例においてはこの保護層12はデンプン糊で
形成されている。Further, the coating 4 is provided with a water-soluble protective layer 12 which covers the outside of the water leakage detection layer 10 made of the anhydrous copper sulfate CuSO 4 and cuts off contact between the water leakage detection layer 10 and the atmosphere. In this embodiment, this protective layer 12 is formed of starch paste.
そして、上述のように構成される漏水センサ２は、例
えば配水管系に沿ってその外周面に張り付けられる等し
て配設される。この際、漏水センサ２はその漏水検出層
10側が配水管系の管壁表面の反対側に向けられて配され
る。The water leakage sensor 2 configured as described above is disposed, for example, by being attached to the outer peripheral surface thereof along a water distribution pipe system. At this time, the water leak sensor 2 is
The 10 side is arranged facing the opposite side of the pipe wall surface of the water distribution pipe system.
このようにしてなる漏水センサ２は漏水が発生してい
ない通常時には、２つの電極6,6間は絶縁状態に保持さ
れているとともに、当該漏水センサ２の表面は無水硫酸
銅でなる漏水検出層10が呈する白色を示している。そし
て、この漏水検出層10はデンプン糊から保護層２によっ
てその外側を被覆されて、空気等の雰囲気との接触が断
たれており、その雰囲気中の水蒸気に暴露して、当該水
蒸気と反応することが防止されている。In the water leakage sensor 2 thus configured, in a normal state where no water leakage occurs, the two electrodes 6 and 6 are kept in an insulated state, and the surface of the water leakage sensor 2 is made of a water leakage detection layer made of anhydrous copper sulfate. 10 shows the white color. Then, the water leakage detection layer 10 is covered with a protective layer 2 from starch glue, and its outside is disconnected from an atmosphere such as air, and is exposed to water vapor in the atmosphere to react with the water vapor. That has been prevented.
しかるに、この漏水センサ２の配設された配水管系に
水漏れが発生すると、この配水管系の漏水発生箇所から
漏れた水は、第３図と第４図とに示すようにデンプン糊
から成る保護層12を溶かし、漏水センサ２の帯布４に浸
透してこれを湿潤させる。すると、その帯布４に浸透し
てこれを湿潤させた水分によって従来と同様に２つの電
極6,6間が導通状態になり、ブザー装置８が吹鳴され
て、その漏水の発生が警告される。またさらに、帯布４
に浸透した水は無水硫酸銅の漏水検出層10に達し、ここ
で白色粉末状の無水硫酸銅CuSO4と反応して青色の銅イ
オン［Cu（H2O）］2+を生成する。したがって、漏水発
生箇所付近の湿潤した部位の漏水センサ２の表面は白色
から青色に変化され、これによりその湿潤部位つまり漏
水発生箇所の視認性が著しく高まり、暗所においてもそ
の発見が極めて容易なものとなる。However, when a water leak occurs in the water distribution pipe system in which the water leak sensor 2 is disposed, water leaking from the water leakage location of the water distribution pipe system is discharged from the starch paste as shown in FIGS. 3 and 4. The protective layer 12 is melted and penetrated into the bandage 4 of the water leak sensor 2 to wet it. Then, the water which permeates and wets the bandage 4 makes the two electrodes 6 and 6 conductive as in the conventional case, and the buzzer device 8 is sounded to warn of the occurrence of water leakage. . Furthermore, obi cloth 4
The water that has permeated the water reaches the anhydrous copper sulfate water leakage detection layer 10, where it reacts with white powdery anhydrous copper sulfate CuSO 4 to generate blue copper ions [Cu (H 2 O)] 2+ . Therefore, the surface of the water leak sensor 2 in a wet portion near the water leak occurrence location is changed from white to blue, whereby the visibility of the wet location, that is, the water leak occurrence location is remarkably increased, and it is extremely easy to find out even in a dark place. It will be.
なお、漏水センサ２の表面に無水硫酸銅の漏水検出層
10を形成する場合、漏水センサ２の巾方向および長手方
向両端に若干余白を残して形成し、デンプン糊から成る
保護層12は漏水センサ２の両面側全体に形成して前記無
水硫酸銅の層10を両面のみでなくその側面をもデンプン
糊から成る保護層12で被覆するようにしたほうが良い。Note that a water leakage detection layer of anhydrous copper sulfate is provided on the surface of the water leakage sensor 2.
In the case where the water leak sensor 2 is formed, the water leak sensor 2 is formed so as to leave a small margin at both ends in the width direction and the longitudinal direction, and the protective layer 12 made of starch paste is formed on both sides of the water leak sensor 2 to form the layer of anhydrous copper sulfate. It is better to cover not only both sides but also the side surfaces thereof with a protective layer 12 made of starch paste.
また、漏水検出層10は上述の実施例のように必ずしも
無水硫酸銅で形成する必要はなく、水分に反応して変色
する性質を有するものであれば良く、さらにその漏水検
出層10は帯布４の表面に塗布して形成する以外に、帯布
４自体に含浸させて形成するようにしても良い。Further, the water leak detection layer 10 does not necessarily need to be formed of anhydrous copper sulfate as in the above-described embodiment, and may be any material having a property of discoloring in response to moisture. Instead of being formed by coating on the surface of the band 4, the band cloth 4 itself may be impregnated and formed.
また、上述の実施例のように漏水検出層10を無水硫酸
銅で形成し、保護層をデンプン糊で形成すれば、材料コ
ストを安く抑えることができ、廉価に提供できる。Further, if the water leakage detection layer 10 is formed of anhydrous copper sulfate and the protective layer is formed of starch paste as in the above-described embodiment, the material cost can be reduced and the cost can be reduced.
《効 果》 以上実施例で詳細に説明したように、本発明に係る漏
水センサによれば、次のような優れた効果を発揮する。<< Effects >> As described in detail in the above embodiments, the water leakage sensor according to the present invention exhibits the following excellent effects.
すなわち、透水性を有する帯布にその長手方向に沿っ
て電極が並行に配設され、帯布が浸潤されると前記電極
が導通状態になる漏水センサにおいて、前記帯布に、水
分に反応して変色する漏水検出層を形成すると共に、該
漏水検出層の外側を被覆して当該漏水検出層と雰囲気と
の接触を断つ水溶性の保護層を形成したので、漏水が発
生していない通常時においては、上記漏水検出層が雰囲
気中の水蒸気の水分と反応して変色することを防止で
き、その長寿命化が図れて長期に亘って使用できるよう
になる。また、漏水が発生した場合には、水溶性の保護
層がその漏水によって溶け、当該漏水が帯布に浸透して
これを湿潤させるので、電極間が導通されてその漏水の
発生を検知できるとともに、漏水検出層が変色してその
漏水発生箇所の発見が容易になる。That is, electrodes are arranged in parallel along the longitudinal direction of a water-permeable bandage, and in a water leakage sensor in which the electrodes are in a conductive state when the bandage is infiltrated, the bandage reacts with moisture. In addition to forming a water leakage detection layer that discolors due to water, a water-soluble protective layer that covers the outside of the water leakage detection layer and cuts off contact between the water leakage detection layer and the atmosphere is formed. In this case, the water leakage detection layer can be prevented from reacting with water vapor in the atmosphere to change its color, and its life can be prolonged so that it can be used for a long time. Further, when water leakage occurs, the water-soluble protective layer is melted by the water leakage, and the water leakage penetrates and wets the cloth, so that the conduction between the electrodes can be detected and the generation of the water leakage can be detected. In addition, the water leakage detection layer is discolored, and it is easy to find the location of the water leakage.
また、漏水検出層を無水硫酸銅で形成し、水溶性の保
護層をデンプン糊で形成すれば、原材料費が安く、廉価
に提供できる。Further, if the water leakage detection layer is formed of anhydrous copper sulfate and the water-soluble protective layer is formed of starch paste, raw material costs can be reduced and the cost can be reduced.
第１図は本発明に係る漏水センサの概略構成を示す平面
図、第２図は漏水センサの長手方向に沿った部分断面
図、第３図は漏水があった時の状態を示す第１図に相当
する平面図、第４図は漏水があった時の状態を示す第２
図に相当する部分断面図である。 ２……漏水センサ、４……帯布 ６……電極、８……ブザー装置 10……漏水検出層、12……保護層FIG. 1 is a plan view showing a schematic configuration of a water leak sensor according to the present invention, FIG. 2 is a partial cross-sectional view along a longitudinal direction of the water leak sensor, and FIG. FIG. 4 is a plan view corresponding to FIG.
FIG. 3 is a partial sectional view corresponding to the drawing. 2 ... water leak sensor, 4 ... belt cloth 6 ... electrode, 8 ... buzzer device 10 ... water leak detection layer, 12 ... protective layer
Claims (3)
て電極が並行に配設され、帯布が湿潤されると前記電極
が導通状態になる漏水センサにおいて、 前記帯布に、水分に反応して変色する漏水検出層を形成
すると共に、該漏水検出層の外側を被覆して当該漏水検
出層と雰囲気との接触を断つ水溶性の保護層を形成した
ことを特徴とする漏水検出センサ。1. A water leakage sensor in which electrodes are disposed in parallel with a water-permeable band along its longitudinal direction, and the electrodes are in a conductive state when the band is moistened. Forming a water leakage detection layer that changes color in response to the water, and forming a water-soluble protective layer that covers the outside of the water leakage detection layer and cuts off contact between the water leakage detection layer and the atmosphere. Sensor.
ことを特徴とする請求項１に記載の漏水センサ。2. The water leak sensor according to claim 1, wherein said water leak detection layer is formed of anhydrous copper sulfate.
を特徴とする請求項1,2に記載の漏水センサ。3. The water leakage sensor according to claim 1, wherein said protective layer is formed of starch paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2099309A JP2574924B2 (en) | 1990-04-17 | 1990-04-17 | Water leak sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2099309A JP2574924B2 (en) | 1990-04-17 | 1990-04-17 | Water leak sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03296653A JPH03296653A (en) | 1991-12-27 |
| JP2574924B2 true JP2574924B2 (en) | 1997-01-22 |
Family
ID=14244035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2099309A Expired - Lifetime JP2574924B2 (en) | 1990-04-17 | 1990-04-17 | Water leak sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2574924B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006284511A (en) * | 2005-04-05 | 2006-10-19 | Ohbayashi Corp | Holding material for piping |
| JP2010190574A (en) * | 2009-02-13 | 2010-09-02 | Omron Corp | Liquid leak detector |
| JP5722257B2 (en) * | 2012-03-05 | 2015-05-20 | タツタ電線株式会社 | Liquid sensing sheet |
| JP2019124657A (en) * | 2018-01-19 | 2019-07-25 | 大日本印刷株式会社 | Moisture detection sensor |
| CN109708816A (en) * | 2019-01-08 | 2019-05-03 | 孙剑军 | Water segregator leakproof water sensor and its working method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0517637Y2 (en) * | 1987-08-08 | 1993-05-12 | ||
| JP3065956U (en) * | 1999-07-22 | 2000-02-08 | 菅公工業株式会社 | Wiper for removing water droplets from window glass, etc. |
-
1990
- 1990-04-17 JP JP2099309A patent/JP2574924B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006053110A (en) * | 2004-08-16 | 2006-02-23 | Nec Saitama Ltd | Water wetting detecting seal, water wetting detector, and electronic apparatus using same |
| CN100472207C (en) * | 2004-08-16 | 2009-03-25 | 日本电气株式会社 | Moisture detection label, moisture detection device, moisture detection method, power shutoff method, and electronics device |
| US8242919B2 (en) | 2004-08-16 | 2012-08-14 | Nec Corporation | Moisture detection label, moisture detection device, moisture detection method, power shutoff method, and electronics device |
| US8441362B2 (en) | 2004-08-16 | 2013-05-14 | Nec Corporation | Moisture detection label, moisture detection device, moisture detection method, power shutoff method, and electronics device |
| KR20200114006A (en) * | 2019-03-27 | 2020-10-07 | 안상엽 | Gas chemical sensor of film type |
| KR102206863B1 (en) | 2019-03-27 | 2021-01-22 | 안상엽 | Gas chemical sensor of film type |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03296653A (en) | 1991-12-27 |
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