JP2001311193A - Disinfecting cleaning method for water supply pipe - Google Patents
Disinfecting cleaning method for water supply pipeInfo
- Publication number
- JP2001311193A JP2001311193A JP2000127048A JP2000127048A JP2001311193A JP 2001311193 A JP2001311193 A JP 2001311193A JP 2000127048 A JP2000127048 A JP 2000127048A JP 2000127048 A JP2000127048 A JP 2000127048A JP 2001311193 A JP2001311193 A JP 2001311193A
- Authority
- JP
- Japan
- Prior art keywords
- water
- ozone
- supply pipe
- water supply
- ozone 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 185
- 238000004140 cleaning Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000000249 desinfective effect Effects 0.000 title claims abstract description 7
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 111
- 230000001954 sterilising effect Effects 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 54
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 5
- 229910001882 dioxygen Inorganic materials 0.000 claims description 5
- 238000004659 sterilization and disinfection Methods 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 2
- 239000008399 tap water Substances 0.000 abstract description 3
- 235000020679 tap water Nutrition 0.000 abstract description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 10
- 238000007796 conventional method Methods 0.000 description 8
- 239000010408 film Substances 0.000 description 6
- 230000002411 adverse Effects 0.000 description 5
- 238000006864 oxidative decomposition reaction Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000004040 coloring Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Landscapes
- Domestic Plumbing Installations (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】この発明は、戸建て住宅やマ
ンション等の集合住宅の戸別配管殺菌洗浄工法に係り、
詳記すれば量水器を取り外さない場合の水道用給水配管
の殺菌洗浄方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for disinfecting and cleaning pipes in individual houses, such as detached houses and condominiums,
More specifically, the present invention relates to a method for sterilizing and cleaning a water supply pipe when a water meter is not removed.
【０００２】[0002]
【従来の技術】建物に布設されている給水配管内部は、
長期間使用するとさび、こぶ、スライム等が発生し、そ
のさび等が水道水の流れを阻害するばかりか、食物の味
覚を落としたり、衛生的にも害をなすものであること
は、良く知られている。2. Description of the Related Art The inside of a water supply pipe laid in a building is:
It is well known that rust, bumps, slime, etc. occur when used for a long period of time, which not only impedes the flow of tap water, but also lowers the taste of food and is harmful to hygiene. Have been.
【０００３】従来、このさび、こぶ、スライム等の洗浄
除去方法としては、オゾン水やオゾン混和水を使用する
方法が知られていた。Conventionally, as a method for washing and removing rust, bumps, slime, and the like, a method using ozone water or ozone mixed water has been known.
【０００４】このようなオゾン水やオゾン混和水を使用
する方法としては、平成８年９月１１日付けの「週間公
共住宅」に記載の“高圧オゾン洗浄工法”が広く行われ
ていた。As a method of using such ozone water or ozone-mixed water, the “high-pressure ozone cleaning method” described in “Weekly Public Housing” dated September 11, 1996 has been widely used.
【０００５】この“高圧オゾン洗浄工法”は、メーター
（量水器）を取り外して、バイパス管を接続し、同バイ
パス管路でオゾン水を形成させ、同オゾン水を圧力空気
と共にエアーハンマー状態で給水管内に送り込み、オゾ
ン水の酸化力を利用してさび、こぶ、スライム等を酸化
して結合力を弱め、エアハンマーの水撃・攪拌作用によ
って、さび等を剥離除去させるものである。In this "high-pressure ozone cleaning method", a meter (water meter) is removed, a bypass pipe is connected, ozone water is formed in the bypass pipe line, and the ozone water is compressed with pressurized air in an air hammer state. It is fed into a water supply pipe, oxidizes rust, bumps, slime, etc. using the oxidizing power of ozone water to weaken the bonding force, and peels and removes rust, etc., by a water hammer / stirring action of an air hammer.
【０００６】図１は、上記従来法を示すものであり、水
道本管１から分岐して布設される給水栓１３に至る給水
配管１２を洗浄する従来工法での機器の配置例を示すも
のである。FIG. 1 shows the above-mentioned conventional method, and shows an example of the arrangement of equipment in the conventional method for cleaning a water supply pipe 12 which branches from a water main 1 to a water tap 13 to be laid. is there.
【０００７】この従来工法では、機器配置完了後、開閉
弁２を開いて給水栓１３から水道水を流し、一定時間オ
ゾン水を通水することで配管内部のスライム等を酸化分
解させる。その後、オゾン水を流しながら、断続的にエ
アコンプレッサー（空気圧縮機）１１から圧縮空気投入
器１０を介して圧縮空気を投入し、スライム、錆等を除
去するものである。In this conventional method, after the arrangement of the equipment is completed, the on-off valve 2 is opened, tap water is supplied from the water tap 13, and slime and the like in the piping are oxidized and decomposed by passing ozone water for a certain time. Thereafter, while flowing ozone water, compressed air is intermittently supplied from an air compressor (air compressor) 11 via a compressed air input device 10 to remove slime, rust and the like.
【０００８】[0008]
【発明が解決しようとする課題】上記従来法は、量水器
を取り外せる場合は良いが、量水器が錆付いていたりし
て、取り外せない場合は、実施することが出来ない問題
があった。The conventional method described above is good when the water meter can be removed, but cannot be implemented when the water meter is rusted and cannot be removed.
【０００９】量水器が取り外せない場合は、逆に給水栓
１３からオゾン水を注入することが考えられるが、この
場合は、図２の（Ａ）部（量水器４に一番近い給水栓１
３から量水器の二次側の継手５迄）にはオゾン水を送り
込むことが出来ないので、この部分がデッド部となり、
全く洗浄できない問題があった。If the water meter cannot be removed, it is conceivable to inject ozone water from the water tap 13 on the contrary. In this case, the part (A) of FIG. Stopper 1
Since ozone water cannot be sent to the joint 3 on the secondary side of the water meter from 3), this part becomes a dead part,
There was a problem that cleaning was not possible at all.
【００１０】そればかりか、従来のオゾン水を使用する
方法は、圧縮空気をオゾン水に間欠的に投入するため、
圧縮空気を投入する間は、オゾンガスの供給が停止する
ので、原料ガスが供給されない状態でオゾン発生機を運
転するか、圧縮空気の投入と停止に同期させて、オゾン
発生機を間欠運転する必要があった。そのため、オゾン
発生機の寿命に悪影響を与える欠点があった。In addition, in the conventional method using ozone water, compressed air is intermittently injected into ozone water.
During the injection of compressed air, the supply of ozone gas is stopped.Therefore, it is necessary to operate the ozone generator in a state where the source gas is not supplied, or to intermittently operate the ozone generator in synchronization with the injection and stoppage of compressed air. was there. Therefore, there is a disadvantage that the life of the ozone generator is adversely affected.
【００１１】この発明のうち請求項１に記載の発明は、
量水器を取り外さずに、しかもデッド部を生じさせるこ
と無く殺菌洗浄出来る給水配管の殺菌洗浄方法を提供す
ることを目的とする。[0011] The invention described in claim 1 of the present invention is:
It is an object of the present invention to provide a method for disinfecting and cleaning a water supply pipe capable of disinfecting and cleaning without removing a water meter and without generating a dead portion.
【００１２】また、請求項２に記載の発明は、上記目的
に加えて、オゾン発生機の寿命に悪影響を与えず、しか
も装置を小型化できる給水配管洗浄方法を提供すること
を目的とする。Another object of the present invention is to provide a method for cleaning a water supply pipe which does not adversely affect the life of the ozone generator and can reduce the size of the apparatus.
【００１３】[0013]
【課題を解決するための手段】上記目的に沿う本発明の
うち請求項１に記載の発明は、量水器を取り外さないで
水道用給水配管を殺菌洗浄する方法において、量水器か
らの給水を停止し、量水器の二次側の継手をゆるめて給
水栓を減圧にしながら給水配管内の水を給水栓から除去
し、ついで、継手をゆるめた状態を維持しながら、オゾ
ンガスを給水栓から配管内に供給して給水配管内の水の
被膜にオゾンガスを接触させ、それから、前記二次側の
継手を締め、量水器を通して水を流すことを特徴とす
る。According to the first aspect of the present invention, there is provided a method for sterilizing and cleaning a water supply pipe without removing a water meter. And remove the water in the water supply pipe from the water faucet while depressurizing the water faucet by loosening the joint on the secondary side of the water meter, and then, while maintaining the loosened state of the joint, feed the ozone gas to the water faucet. And ozone gas is brought into contact with the water film in the water supply pipe from the water supply pipe, and then, the joint on the secondary side is tightened, and the water flows through a water meter.
【００１４】要するに請求項１に記載の発明は、オゾン
ガスを使用することにより、従来オゾン水を送入できな
かったデッド部に送入できるようにし、その結果従来実
施し得なかった量水器を外さない給水配管の殺菌洗浄を
可能としたことを要旨とするものである。[0014] In short, the first aspect of the present invention is to use an ozone gas so that ozone water can be fed into a dead part where ozone water could not be fed conventionally. The gist of the present invention is to enable sterilization and cleaning of a water supply pipe that is not removed.
【００１５】また、請求項２記載の発明は、上記請求項
１記載の発明の構成に加えて、水を除去し、給水栓１３
からオゾンガスを注入した後、オゾンガスを流しながら
他の給水栓１３を順次開とし、給水配管１２内に完全に
オゾンガスを流し、数分程度放置した後、量水器４から
水を流す構成を加えたことを特徴とする。According to a second aspect of the present invention, in addition to the configuration of the first aspect of the present invention, water is removed, and
After injecting ozone gas from the apparatus, the other water taps 13 are sequentially opened while the ozone gas is flowing, the ozone gas is completely flown into the water supply pipe 12, left for a few minutes, and then water is flowed from the water meter 4. It is characterized by having.
【００１６】要するに請求項２に記載の発明は、請求項
１に記載の発明に加えて、デッド部以外もオゾンガスで
殺菌洗浄することによって、オゾンガスを流している間
は、圧縮空気を供給しないのでオゾン発生機の寿命に悪
影響を与えないようにすると共に、水の被膜にオゾンガ
スを接触させることによって、少量のオゾンで短時間に
殺菌洗浄し得るようにしたことを要旨とするものであ
る。In short, according to the second aspect of the present invention, in addition to the first aspect of the present invention, the compressed air is not supplied while the ozone gas is flowing by sterilizing and cleaning the area other than the dead portion with the ozone gas. The gist of the present invention is to prevent the ozone generator from adversely affecting its life and to make it possible to sterilize and wash with a small amount of ozone in a short time by bringing ozone gas into contact with a water film.
【００１７】[0017]
【発明の実施の形態】次に本発明の実施の形態を説明す
る。Next, an embodiment of the present invention will be described.
【００１８】本発明方法は、下記工程からなる。The method of the present invention comprises the following steps.
【００１９】（Ａ）図２に示すように、開閉弁２を閉じ
て量水器４からの給水を停止し、量水器の二次側の継手
５をゆるめて、いずれかの給水栓（好ましくは量水器に
一番近い給水栓）１３を減圧にしながら（他の給水栓１
３は閉じている）給水配管内の水を給水栓１３から除去
する。複数及び全ての給水栓１３を減圧にして、水を除
去しても差し支えない。(A) As shown in FIG. 2, the water supply from the water meter 4 is stopped by closing the on-off valve 2 and the joint 5 on the secondary side of the water meter is loosened, so that one of the water taps ( While reducing the pressure of the water tap (preferably the water tap closest to the water meter) 13 (other taps 1
The water in the water supply pipe is removed from the water tap 13. A plurality of and all water taps 13 may be depressurized to remove water.
【００２０】（Ｂ）ついで、オゾンガスをいずれかの給
水栓（好ましくは減圧にした給水栓）１３（他の給水栓
１３は閉じておく）から配管内に供給して給水配管１２
内の水の被膜にオゾンガスを接触させる。このようにす
ることによって、デッド部（Ａ）の配管内にもオゾンガ
スが充満し、水の被膜にオゾンガスが接触して、デッド
部配管内に付着しているスライム等の有機物を酸化分解
させる。(B) Next, ozone gas is supplied from one of the water taps (preferably a water tap with reduced pressure) 13 (the other water tap 13 is kept closed) to the inside of the pipe to supply water.
Ozone gas is brought into contact with the water film inside. By doing so, the ozone gas is also filled in the piping of the dead portion (A), and the ozone gas comes into contact with the water film, thereby oxidizing and decomposing organic substances such as slime adhered to the dead portion piping.
【００２１】（Ｃ）それから、前記二次側の継手５を締
め、量水器４から水を流してデッド部内の酸化分解した
スライムや錆を除去する。(C) Then, the secondary joint 5 is tightened, and water is flowed from the water meter 4 to remove oxidized and decomposed slime and rust in the dead portion.
【００２２】上記（Ａ）〜（Ｃ）の工程は、デッド部内
のスライムや錆を充分除去するため、複数回繰り返すと
良い。繰り返す回数は、デッド部内の汚れの程度にもよ
るが、通常は、３〜５回程度で充分である。The above steps (A) to (C) are preferably repeated a plurality of times in order to sufficiently remove slime and rust in the dead part. The number of repetitions depends on the degree of dirt in the dead portion, but usually about 3 to 5 times is sufficient.
【００２３】上記（Ｂ）工程において、給水栓１３から
オゾンガスを注入して数分間放置した後、給水栓１３か
らオゾンガスを流しながら、他の給水栓１３を順次開と
すれば、デッド部に限らず、全ての給水配管１２内のス
ライム等の有機物を酸化分解させることができる。In the above step (B), if the ozone gas is injected from the water tap 13 and left for several minutes, and then the other water taps 13 are sequentially opened while the ozone gas is flowed from the water tap 13, it is not limited to the dead part. Instead, organic substances such as slime in all the water supply pipes 12 can be oxidatively decomposed.
【００２４】この場合量水器４から水を流すときに、圧
縮空気を給水配管内に間欠供給して、給水配管内部に高
速流水や乱流を発生させ、これらの物理力によって、ス
ライムや錆を剥離、除去すると良い。このようにすれ
ば、デッド部とデッド部以外の配管の殺菌洗浄を短時間
に行うことが出来る。In this case, when flowing water from the water meter 4, compressed air is intermittently supplied into the water supply pipe to generate high-speed flowing water or turbulent flow inside the water supply pipe, and slime or rust is generated by these physical forces. It is good to peel off and remove. In this way, the dead portion and the pipes other than the dead portion can be sterilized and cleaned in a short time.
【００２５】上記デッド部以外の配管内の殺菌洗浄を別
に行う場合は、オゾン水を使用しても行うことが出来
る。オゾン水を使用する場合は、図１に示すように、従
来と同様にして行えば良い。When the sterilization and cleaning of the piping other than the dead portion is separately performed, ozone water can be used. In the case of using ozone water, as shown in FIG.
【００２６】即ち、酸素ボンベ９の酸素からオゾン発生
機８でオゾンを生成させ、これをミキサー１５で混合し
てオゾン水として、これを図２の給水栓１３（他の給水
栓１３も開とする）から注入すれば良い。しかしなが
ら、オゾン発生機８の寿命に悪影響を与えないことと、
装置を小型化できることからオゾンガスを使用するのが
好ましい。That is, ozone is generated from the oxygen in the oxygen cylinder 9 by the ozone generator 8, mixed with the mixer 15 to form ozone water, and this is supplied to the water tap 13 in FIG. 2 (the other water taps 13 are also opened). Do). However, it does not adversely affect the life of the ozone generator 8, and
It is preferable to use ozone gas because the size of the device can be reduced.
【００２７】上記本発明の工程を実施するには、図２に
示すように、オゾンガスと圧縮空気を給水配管に注入す
るための給水管洗浄専用管路を形成して、配管系の着脱
を行わずに順次（Ａ）〜（Ｃ）の工程を行うのが好まし
い。しかしながら、オゾンガス、圧縮空気及びオゾン水
の供給口を逐次給水配管に接続して実施しても差し支え
ない。In order to carry out the process of the present invention, as shown in FIG. 2, a water supply pipe cleaning dedicated pipe for injecting ozone gas and compressed air into a water supply pipe is formed, and a pipe system is attached and detached. It is preferable to sequentially perform the steps (A) to (C) without performing the steps. However, the supply ports of the ozone gas, the compressed air and the ozone water may be sequentially connected to the water supply pipe to perform the operation.
【００２８】上記（Ｂ）工程で他の給水栓１３を開とす
るときは、複数本の給水栓１３を開き、複数本一括でオ
ゾンガスを通過させても良い。また、給水栓１本づつに
オゾンガスを通過させても勿論良い。When the other water taps 13 are opened in the above step (B), a plurality of water taps 13 may be opened, and a plurality of water taps 13 may be passed at once. Alternatively, ozone gas may be passed through each water tap one by one.
【００２９】（Ｂ）工程で給水栓を開とするときは、給
水栓から排気されるオゾンガスによって、室内にオゾン
ガスが充満するので、給水栓の出口にオゾン分解器を取
り付け、室内にオゾンガスが充満するのを防止するのが
望ましい。When the water faucet is opened in the step (B), the room is filled with ozone gas by the ozone gas exhausted from the water faucet. Therefore, an ozone decomposer is installed at the outlet of the water faucet, and the room is filled with ozone gas. It is desirable to prevent
【００３０】（Ｂ）工程でオゾンガスを注入することに
よって、給水配管内壁に付着した有機物を覆っている水
分の薄膜にオゾンガスが溶解するので、効率的に酸化分
解を行うことが出来る。即ち、酸化分解によって消費さ
れた溶存オゾンの供給をバルクのオゾン水から溶液中の
拡散によって供給する従来法よりも、有機物を覆ってい
る水分の薄膜に直接オゾンガスを溶解させ、酸化分解に
よって消費された溶存オゾンを、オゾンガスから供給す
る本発明方法の方が遥かに効率的であるからである。By injecting the ozone gas in the step (B), the ozone gas dissolves in the thin film of moisture covering the organic matter attached to the inner wall of the water supply pipe, so that the oxidative decomposition can be performed efficiently. That is, compared to the conventional method of supplying dissolved ozone consumed by oxidative decomposition from bulk ozone water by diffusion in a solution, ozone gas is directly dissolved in a thin film of moisture covering organic matter and consumed by oxidative decomposition. This is because the method of the present invention in which dissolved ozone is supplied from ozone gas is much more efficient.
【００３１】その結果、本発明によれば、小型のオゾン
発生機を使用することで、従来の高濃度オゾン水と同等
以上の酸化分解を実現でき、しかも短時間のオゾン接触
によって、従来法と同程度の酸化分解を達することが出
来ることが実験により確認されている。As a result, according to the present invention, by using a small-sized ozone generator, oxidative decomposition equal to or higher than that of the conventional high-concentration ozone water can be realized. Experiments have shown that the same level of oxidative degradation can be achieved.
【００３２】Ｂ工程でオゾンガスを注入するとき、主と
してデッド部（Ａ）を洗浄する場合は、継手５をゆる
め、オゾンガスを注入する給水栓１３以外の給水栓１３
は全て閉とし、主としてデッド部以外の給水配管を洗浄
する場合は、給水栓１３は順次若しくは同時に全て開と
する必要があるが、オゾンガスの供給は連続でも断続で
も良い。また、デッド部以外を洗浄する場合は、量水器
４の二次側の継手５は、当初開とし、デッド部にオゾン
ガスが充満したら閉とするのが好ましい。When the ozone gas is injected in the step B, when the dead part (A) is mainly cleaned, the joint 5 is loosened and the water supply plugs 13 other than the water supply plug 13 for injecting the ozone gas are used.
When all the water supply pipes other than the dead portion are mainly cleaned, it is necessary to open all the water taps 13 sequentially or simultaneously, but the supply of ozone gas may be continuous or intermittent. In addition, when cleaning a portion other than the dead portion, it is preferable that the joint 5 on the secondary side of the water meter 4 is initially opened, and is closed when the dead portion is filled with the ozone gas.
【００３３】本発明で使用するオゾンガス濃度は、１５
ｇ／ｍ３以上の濃度で前記給水配管内に供給するのが好
ましい。これより薄い濃度であると、さび、こぶ、スラ
イム等を短時間で充分に除去することが出来なくなる。The ozone gas concentration used in the present invention is 15
It is preferable to supply the water at a concentration of g / m 3 or more into the water supply pipe. If the concentration is lower than this, rust, bumps, slime, etc. cannot be sufficiently removed in a short time.
【００３４】次に、実施例を挙げて本発明を更に説明す
るNext, the present invention will be further described with reference to examples.
【実施例】図２に示すように、５本の給水栓１３を有す
る戸建て住宅の給水栓１３（量水器４に一番近い）に、
減圧機器、オゾン供給機器及び圧縮空気供給機器で構成
した給水洗浄管路を設置した。DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 2, a water tap 13 of a detached house having five water taps 13 (closest to the water meter 4)
A feed water washing pipeline composed of a decompression device, an ozone supply device, and a compressed air supply device was installed.
【００３５】減圧機器は、減圧に切り替えるバルブ７
と、減圧ポンプ１４とから構成されている。The decompression device is a valve 7 for switching to decompression.
And a pressure reducing pump 14.
【００３６】オゾン供給機器は、逆止め弁１６、オゾン
発生機８、酸素ボンベ９及びオゾンガス濃度計１５から
構成される。オゾン発生機８、空気圧縮機１１には、供
給、停止を自動的に行うための電磁弁が設置されてい
る。圧縮空気投入器１０には、空気圧縮機１１へ圧縮空
気が逆流しないようにするための逆止め弁６が設置され
ている。The ozone supply device comprises a check valve 16, an ozone generator 8, an oxygen cylinder 9 and an ozone gas concentration meter 15. The ozone generator 8 and the air compressor 11 are provided with solenoid valves for automatically performing supply and stop. The check valve 6 for preventing the compressed air from flowing back to the air compressor 11 is installed in the compressed air injector 10.
【００３７】まず、量水器４の二次側の継手５をゆる
め、バルブ７をポンプ１４と連通するように切り替え
て、給水管１２内の水を給水栓１３から全て追い出し
た。First, the joint 5 on the secondary side of the water meter 4 was loosened, the valve 7 was switched so as to communicate with the pump 14, and all the water in the water supply pipe 12 was expelled from the water tap 13.
【００３８】その後バルブ７をオゾンガス供給通路と連
通するように切り替え、オゾンガスを注入する給水栓１
３以外の給水栓は全て閉じて、オゾン発生機８から濃度
３０ｇ／Ｎｍ３ のオゾンガスを毎分３リットルの流量
で３分間導入した。Thereafter, the valve 7 is switched to communicate with the ozone gas supply passage, and the water tap 1 for injecting the ozone gas is supplied.
All the water taps other than 3 were closed, and ozone gas having a concentration of 30 g / Nm 3 was introduced from the ozone generator 8 at a flow rate of 3 liters per minute for 3 minutes.
【００３９】それから更に上記濃度のオゾンガスを注入
し、量水器の二次側の継手５を締め、他の４本の給水栓
１３を順次開いて、同様に1本につき３分間オゾンガス
を通過させ、オゾンガスの供給を停止させた。この時、
給水栓１３の蛇口部には、マンガン触媒式のオゾン分解
器を取り付け、オゾンガスが部屋に充満しないように配
慮した。Then, the ozone gas having the above concentration is further injected, the joint 5 on the secondary side of the water meter is closed, and the other four water taps 13 are sequentially opened. Similarly, the ozone gas is passed through each one for 3 minutes. Then, the supply of ozone gas was stopped. At this time,
A manganese-catalyzed ozone decomposer was attached to the faucet of the water tap 13 so that the room was not filled with ozone gas.
【００４０】次に、オゾン分解器を取り外し、開閉弁２
を開き、５本の給水栓１３から水を流し、同時に空気圧
縮機１１から圧縮空気を１０分間間欠供給した（５秒供
給―１０秒停止を繰り返す）。通水流量は、流量計５に
よってモニターした。Next, the ozone decomposer is removed, and the on-off valve 2
Was opened, water was flowed from five water taps 13, and at the same time, compressed air was intermittently supplied from the air compressor 11 for 10 minutes (supply of 5 seconds and stopping for 10 seconds were repeated). The flow rate of the flowing water was monitored by the flow meter 5.
【００４１】間欠供給開始から約５分間は、給水栓１３
から流れ出る水に多量の赤錆が含まれていることが確認
でき、時間の経過につれて着色が薄くなり、１０分経過
後には、目視では着色が確認できなくなった。For about 5 minutes from the start of the intermittent supply, the water tap 13
It was confirmed that a large amount of red rust was contained in the water flowing out of the container, and the coloring became lighter with the lapse of time, and after 10 minutes, the coloring could not be confirmed visually.
【００４２】本実施例で使用したオゾン発生器のオゾン
出力は、５．４ｇ／ｈであり、移動には支障をきたさな
い大きさ・重量であり、洗浄時間も１時間以内で完了で
きた。The ozone output of the ozone generator used in this example was 5.4 g / h, a size and weight that would not hinder movement, and the washing time could be completed within one hour.
【００４３】上記のようにして洗浄したデッド部及びデ
ッド部以外の給水配管を内視鏡で観察すると、従来オゾ
ン水を使用して洗浄した場合の給水配管と同程度には洗
浄されていることが観察された。When the dead portion and the water supply pipe other than the dead portion cleaned as described above are observed with an endoscope, it is found that the water supply pipe has been cleaned to the same extent as the water supply pipe conventionally cleaned using ozone water. Was observed.
【００４４】本発明においては、オゾンガスを使用する
ことによって、量水器を取り外せないため、従来洗浄不
可能であった給水配管のデッド部を、容易に且つ効果的
に殺菌洗浄することが出来る。In the present invention, since the water meter cannot be removed by using the ozone gas, the dead portion of the water supply pipe which could not be cleaned conventionally can be easily and effectively sterilized and cleaned.
【００４５】また、全てオゾンガスを使用して殺菌洗浄
すれば、オゾンガスを流している間は圧縮空気を供給し
ないので、オゾン水を使用する方法のように、オゾン発
生機の寿命に悪影響を与えない。また、給水配管内の水
の被膜にオゾンガスが接触するので、少量のオゾンで短
時間に殺菌洗浄することができ、使用するオゾン発生機
を小型にすることができる。In addition, if sterilization cleaning is performed entirely using ozone gas, compressed air is not supplied while the ozone gas is flowing, so that the life of the ozone generator is not adversely affected unlike the method using ozone water. . In addition, since the ozone gas comes into contact with the water film in the water supply pipe, it can be sterilized and cleaned with a small amount of ozone in a short time, and the ozone generator used can be downsized.
【００４６】また、オゾンガスの発生効率（オゾン収
率）は、原料ガスである酸素ガスの純度に影響される。
即ち、高純度酸素ガスに０．５％の窒素ガスを添加した
ところ、高純度酸素ガス（９９．９９９％以上）を使用
した場合と比べて、シナニズム効果により、オゾン収率
が４１％向上することが実験により確認されている。窒
素ガスの添加量は、高純度酸素ガス流量に対し、０．３
〜１％とするのが好ましい。従って、請求項６に記載の
発明によれば、オゾン発生機のさらなる小型化が可能と
なる。Further, the generation efficiency (ozone yield) of ozone gas is affected by the purity of oxygen gas as a raw material gas.
That is, when 0.5% of nitrogen gas is added to high-purity oxygen gas, the ozone yield is improved by 41% due to the kininism effect as compared with the case where high-purity oxygen gas (99.999% or more) is used. This has been confirmed by experiments. The amount of nitrogen gas added is 0.3 to the high-purity oxygen gas flow rate.
It is preferably set to １1%. Therefore, according to the invention described in claim 6, it is possible to further reduce the size of the ozone generator.
【００４７】[0047]
【発明の効果】以上のべた如く、本発明のうち請求項１
に記載の発明によれば、量水器を取り外せない場合、従
来効果的に殺菌洗浄できなかった給水配管内のデッド部
を、容易に且つ効果的に殺菌洗浄可能としたものであ
り、それ故極めて画期的な発明である。As described above, the first aspect of the present invention is as follows.
According to the invention described in the above, when the water meter can not be removed, the dead portion in the water supply pipe which could not be effectively sterilized and cleaned conventionally can be easily and effectively sterilized and cleaned. This is a revolutionary invention.
【００４８】また、請求項２に記載の発明によれば、上
記請求項１記載の発明の効果に加えて、洗浄する給水配
管内の水の被膜に直接オゾンガスを接触させるので、少
量のオゾンで短時間に殺菌洗浄することが出来るから、
小型のオゾン発生機を使用することが出来、洗浄装置を
小型化できる等、従来のオゾン水を使用する方法と比べ
て極めて大きい利点が得られる。According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, the ozone gas is brought into direct contact with the water film in the water supply pipe to be cleaned. Since it can be sterilized and cleaned in a short time,
An extremely large advantage can be obtained as compared with the conventional method using ozone water, for example, a small ozone generator can be used, and a cleaning device can be downsized.
【００４９】[0049]
【図１】従来の給水配管の洗浄方法を示すブロック図で
ある。FIG. 1 is a block diagram showing a conventional method for cleaning a water supply pipe.
【図２】本発明の給水配管の洗浄方法を示すブロック図
である。FIG. 2 is a block diagram illustrating a method for cleaning a water supply pipe according to the present invention.
１………水道本管 ２………開閉弁 ４………量水器 ５………量水器の二次側の継手 ７………バルブ ８………オゾン発生機 １０………圧縮空気投入機 １１………エアーコンプレッサー（空気圧縮機） １２………給水配管 １３………給水栓 １４………減圧ポンプ Ａ………デッド部 DESCRIPTION OF SYMBOLS 1 ... Main water main line 2 ... On-off valve 4 ... Water meter 5 ... Secondary joint of water meter 7 ... Valve 8 ... Ozone generator 10 ... Compression Air injection machine 11 Air compressor (air compressor) 12 Water supply pipe 13 Water tap 14 Pressure reducing pump A Dead section
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０２Ｆ 1/50 ５３１ Ｃ０２Ｆ 1/50 ５４０Ａ ５４０ ５５０Ｄ ５５０ ５５０Ｈ ５５０Ｌ 1/78 1/78 Ｅ０３Ｂ 7/09 Ｅ０３Ｂ 7/09 Ｅ０３Ｃ 1/044 Ｅ０３Ｃ 1/044 Ｂ０８Ｂ 9/06 (72)発明者 鈴木 眞 東京都品川区南大井６−20−12 株式会社 ロキテクノ内 Ｆターム(参考） 2D060 CD04 CD08 3B116 AA13 AB53 BB88 BB89 CC05 3B201 AA13 AB53 BB88 BB89 BB92 BB98 CC21 4D050 AA04 AB06 BB02 BD04 BD06 BD08 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C02F 1/50 531 C02F 1/50 540A 540 550D 550 550H 550L 1/78 1/78 E03B 7/09 E03B 7 / 09 E03C 1/044 E03C 1/044 B08B 9/06 (72) Inventor Makoto Suzuki 6-20-12 Minamioi, Shinagawa-ku, Tokyo Foki terminology (reference) 2D060 CD04 CD08 3B116 AA13 AB53 BB88 BB89 CC05 3B201 AA13 AB53 BB88 BB89 BB92 BB98 CC21 4D050 AA04 AB06 BB02 BD04 BD06 BD08
Claims (6)
殺菌洗浄する方法において、量水器からの給水を停止
し、量水器の二次側の継手をゆるめて給水栓を減圧にし
ながら給水配管内の水を給水栓から除去し、ついで、継
手をゆるめた状態を維持しながら、オゾンガスを給水栓
から配管内に供給して給水配管内の水の被膜にオゾンガ
スを接触させ、それから、前記二次側の継手を締め、量
水器を通して水を流すことを特徴とする給水配管の殺菌
洗浄方法。In a method for disinfecting and cleaning a water supply pipe without removing a water meter, water supply from the water meter is stopped, a joint on the secondary side of the water meter is loosened, and the water tap is depressurized. While removing the water in the water supply pipe from the water tap, while maintaining the loosened joint, supply ozone gas from the water tap into the pipe to contact the ozone gas with the water film in the water supply pipe, and then A method of sterilizing and cleaning a water supply pipe, wherein the joint on the secondary side is tightened and water flows through a water meter.
注入した後、オゾンガスを流しながら他の給水栓を順次
開として、前記量水器から水を流す請求項１記載の殺菌
洗浄方法。2. The sterilizing and cleaning method according to claim 1, wherein the water is removed, ozone gas is injected from a water tap, and then another water tap is sequentially opened while flowing the ozone gas to flow water from the water meter.
縮空気を投入する請求項２記載の殺菌洗浄方法。3. The method of claim 2, wherein the compressed air is intermittently supplied while flowing water from the water meter.
別水道用給水配管を殺菌洗浄する請求項３記載の殺菌洗
浄方法。4. The sterilizing and cleaning method according to claim 3, wherein the water supply pipe for individual water supply of a detached house or an apartment house is sterilized and washed.
度で前記給水配管内に供給する請求項１〜４のいずれか
１項に記載の殺菌洗浄方法。5. The sterilizing and cleaning method according to claim 1, wherein the ozone gas is supplied at a concentration of 15 g / m 3 or more into the water supply pipe.
スを該酸素ガス流量に対し０．３〜１％添加させる機器
を有するオゾン発生機を使用する請求項１〜５のいずれ
か１項に記載の殺菌洗浄方法。6. The ozone generator according to claim 1, wherein an ozone generator having a device for adding 0.3 to 1% of nitrogen gas to said oxygen gas as a raw material of said ozone gas is used. The method for sterilization and cleaning described in the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000127048A JP2001311193A (en) | 2000-04-27 | 2000-04-27 | Disinfecting cleaning method for water supply pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000127048A JP2001311193A (en) | 2000-04-27 | 2000-04-27 | Disinfecting cleaning method for water supply pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001311193A true JP2001311193A (en) | 2001-11-09 |
Family
ID=18636718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000127048A Pending JP2001311193A (en) | 2000-04-27 | 2000-04-27 | Disinfecting cleaning method for water supply pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001311193A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246688A (en) * | 2017-11-29 | 2018-07-06 | 江苏临渊阁健康产业发展有限公司 | A kind of health food production former material material cleaning device |
-
2000
- 2000-04-27 JP JP2000127048A patent/JP2001311193A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246688A (en) * | 2017-11-29 | 2018-07-06 | 江苏临渊阁健康产业发展有限公司 | A kind of health food production former material material cleaning device |
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