JPS6211918B2 - - Google Patents
Info
- Publication number
- JPS6211918B2 JPS6211918B2 JP7451781A JP7451781A JPS6211918B2 JP S6211918 B2 JPS6211918 B2 JP S6211918B2 JP 7451781 A JP7451781 A JP 7451781A JP 7451781 A JP7451781 A JP 7451781A JP S6211918 B2 JPS6211918 B2 JP S6211918B2
- Authority
- JP
- Japan
- Prior art keywords
- ozone
- sterilizing liquid
- ions
- hypobromite
- water pipe
- 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
Links
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- JGJLWPGRMCADHB-UHFFFAOYSA-N hypobromite Inorganic materials Br[O-] JGJLWPGRMCADHB-UHFFFAOYSA-N 0.000 claims description 33
- 230000001954 sterilising effect Effects 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 28
- -1 hypobromite ions Chemical class 0.000 claims description 27
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000001629 suppression Effects 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 14
- 239000001301 oxygen Substances 0.000 description 14
- 229910052760 oxygen Inorganic materials 0.000 description 14
- 238000002336 sorption--desorption measurement Methods 0.000 description 12
- 239000003463 adsorbent Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000003795 desorption Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 229940006460 bromide ion Drugs 0.000 description 3
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 3
- 229910052794 bromium Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000000645 desinfectant Substances 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Inorganic materials Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- DKSMCEUSSQTGBK-UHFFFAOYSA-M bromite Inorganic materials [O-]Br=O DKSMCEUSSQTGBK-UHFFFAOYSA-M 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
Description
【発明の詳細な説明】
この発明は水管中の生物付着を抑制するための
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for inhibiting biofouling in water pipes.
発電所や化学工場等では多量の冷却水が使用さ
れているが、用水中の微生物や藻類に起因して、
水管や熱交換器にスライム等が付着し、管路の閉
塞や熱交換効率の低下をきたす。この種の生物障
害防止対策のために、比較的高濃度のオゾンを間
欠的に水管に注入する装置が先行技術としてあ
る。高濃度のオゾンを間欠的に注入するための装
置として、小型で小容量のオゾン発生機を用い、
これにより生成させたオゾンを吸着剤に吸着蓄積
し、オゾン注入時にオゾンを吸着剤から脱着使用
するものが、設備費および運転費の点で有利であ
る。 A large amount of cooling water is used in power plants, chemical factories, etc., but due to microorganisms and algae in the water,
Slime, etc. adheres to water pipes and heat exchangers, causing blockage of pipes and reduction in heat exchange efficiency. As a measure to prevent this type of biological damage, there is a device in the prior art that intermittently injects relatively high concentration ozone into water pipes. A small, small-capacity ozone generator is used as a device for intermittently injecting high-concentration ozone.
A system in which the ozone thus produced is adsorbed and accumulated on an adsorbent, and the ozone is desorbed and used from the adsorbent during ozone injection is advantageous in terms of equipment costs and operating costs.
このような間欠オゾン注入のための装置の一例
として、次にその構成および動作を第１図により
説明する。第１図は従来の生物付着抑制装置を示
す系統図であり、図において、１はオゾン発生
機、２はこのオゾン発生機１へ酸素を供給する酸
素供給源、３は上記オゾン発生機１と吸脱着塔４
の循環系に設けられた循環ブロア、５は吸脱着塔
４を冷却するための冷却源、６は吸脱着塔４を加
熱するための加熱源、７は吸脱着塔４からのオゾ
ンを注入する水流エゼクタ、８ａ〜８ｇはそれぞ
れ切換弁、９は水流エゼクタ７に連絡するエゼク
タ駆動用水管、１０はこのエゼクタ駆動用水管９
に連絡する冷却用水管、１１はエゼクタ駆動用水
管９に設けられたエゼクタ駆動用ポンプである。 As an example of such a device for intermittent ozone injection, its structure and operation will be explained below with reference to FIG. FIG. 1 is a system diagram showing a conventional biofouling control device. In the figure, 1 is an ozone generator, 2 is an oxygen supply source that supplies oxygen to the ozone generator 1, and 3 is the ozone generator 1. Adsorption/desorption tower 4
5 is a cooling source for cooling the adsorption/desorption tower 4, 6 is a heating source for heating the adsorption/desorption tower 4, and 7 is for injecting ozone from the adsorption/desorption tower 4. A water ejector, 8a to 8g are respective switching valves, 9 is a water pipe for driving the ejector connected to the water ejector 7, and 10 is a water pipe 9 for driving the ejector.
A cooling water pipe 11 connected to the ejector driving water pipe 11 is an ejector driving pump provided in the ejector driving water pipe 9.
吸脱着塔４は二重筒になつており、そのうち内
筒４ａにはオゾン吸着剤が充填され、外筒４ｂに
は熱媒体が充填されている。また吸着剤は一般に
シリカゲルが用いられ、熱媒体はエチレングリコ
ールやアルコール類が使用される。なお、上記循
環ブロア３、オゾン発生機１、吸脱着塔４はこの
順に一つの循環系を構成し、これに酸素供給源２
が連絡している。 The adsorption/desorption tower 4 has a double cylinder structure, of which the inner cylinder 4a is filled with an ozone adsorbent, and the outer cylinder 4b is filled with a heat medium. Furthermore, silica gel is generally used as the adsorbent, and ethylene glycol or alcohol is used as the heat medium. The circulation blower 3, ozone generator 1, and adsorption/desorption tower 4 constitute one circulation system in this order, and the oxygen supply source 2 is connected to this circulation system.
is in contact.
次に動作について説明する。この動作にはオゾ
ンの吸着動作および脱着動作の二動作がある。 Next, the operation will be explained. This operation includes two operations: an ozone adsorption operation and an ozone desorption operation.
初めに吸着動作について説明する。酸素供給源
２より循環系内に、常時一定圧力となるように酸
素を供給する。この時の圧力は通常1.5Kg／cm2に
維持されており、切換弁８ｃ，８ｄは開いてい
る。循環ブロア３により循環系内に酸素を流通さ
せると、オゾン発生機１の放電空隙中を通過する
間に無声放電により酸素の一部がオゾンに変換さ
れてオゾン化酸素となる。このオゾン化酸素は吸
脱着塔４へ搬送される。オゾン吸脱着塔４内の吸
着剤は、オゾンを選択的に吸着し、残りの酸素は
切換弁８ｃを介して循環ブロア３に返送される。
オゾンとして消費された酸素は酸素供給源２より
補充される。この時、オゾン吸着剤の温度は冷却
源５により−30℃以下に冷却されている。これは
吸着剤のオゾン吸着量が温度により大きく変化す
ることによる。すなわち温度を低下させると、オ
ゾンの吸着量は増加し、逆に温度が上昇するとオ
ゾンの吸着量は減少するからである。したがつて
オゾンを脱着する時は吸着剤の温度を上昇させ
る。 First, the suction operation will be explained. Oxygen is supplied from the oxygen supply source 2 into the circulation system so that a constant pressure is maintained at all times. The pressure at this time is normally maintained at 1.5 kg/cm 2 and the switching valves 8c and 8d are open. When oxygen is passed through the circulation system by the circulation blower 3, part of the oxygen is converted into ozone by silent discharge while passing through the discharge gap of the ozone generator 1, and becomes ozonized oxygen. This ozonized oxygen is transported to the adsorption/desorption tower 4. The adsorbent in the ozone adsorption/desorption tower 4 selectively adsorbs ozone, and the remaining oxygen is returned to the circulation blower 3 via the switching valve 8c.
Oxygen consumed as ozone is replenished from the oxygen supply source 2. At this time, the temperature of the ozone adsorbent is cooled to −30° C. or lower by the cooling source 5. This is because the amount of ozone adsorbed by the adsorbent varies greatly depending on the temperature. That is, when the temperature is lowered, the amount of ozone adsorbed increases, and conversely, when the temperature is raised, the amount of ozone adsorbed is decreased. Therefore, when desorbing ozone, the temperature of the adsorbent is increased.
オゾン吸脱着塔４の吸着剤がオゾン飽和吸着量
近くまで吸着すると脱着動作へ移行する。脱着動
作ではオゾン発生機１、循環ブロア３、冷却源５
が稼動を停止し、切換弁８ａ，８ｂ，８ｃ，８ｄ
が閉じる。その後、加熱源６、水流エゼクタ７が
稼動を始めて切換弁８ｅ，８ｆ，８ｇが開く。こ
の時吸着剤に吸着されていたオゾンが脱着し易い
ように加熱源６より熱が加えられ、吸着剤の温度
を上昇させる。そして水流エゼクタ７でオゾン吸
脱着塔４内のオゾンを減圧吸引し、水流エゼクタ
７内で水中に分散して溶解し、これによる生成す
るオゾン水は使用箇所すなわち冷却用水管１０に
送られ、生物付着抑制に供される。この時、減圧
吸引することによる吸脱着塔４内の到達圧力は略
−70cmHgとなる。このように脱着期間が終了す
ると、再び初期の吸着動作へと移行して連続的に
運転が繰り返される。 When the adsorbent in the ozone adsorption/desorption tower 4 adsorbs ozone to a level close to the saturated adsorption amount, a transition is made to the desorption operation. During desorption operation, ozone generator 1, circulation blower 3, and cooling source 5 are used.
stops operating, and the switching valves 8a, 8b, 8c, 8d
closes. Thereafter, the heat source 6 and water ejector 7 start operating, and the switching valves 8e, 8f, and 8g open. At this time, heat is applied from the heating source 6 to increase the temperature of the adsorbent so that the ozone adsorbed on the adsorbent is easily desorbed. Then, the ozone in the ozone adsorption/desorption tower 4 is sucked under reduced pressure by the water jet ejector 7, and is dispersed and dissolved in the water in the water jet ejector 7. The ozone water thus generated is sent to the point of use, that is, the cooling water pipe 10, and is Used to suppress adhesion. At this time, the ultimate pressure within the adsorption/desorption tower 4 due to vacuum suction is approximately -70 cmHg. When the desorption period ends in this manner, the initial adsorption operation is resumed and the operation is continuously repeated.
従来の生物付着抑制装置は上記のように構成さ
れているので、上記装置により、冷却用水管１０
等の水管中にオゾンを間欠的に注入できるが、生
物の付着を抑制すべき水管長が長い場合や、そこ
を流れる水の滞留時間が長い場合は、オゾンが水
中で自己分解等により消失するため、オゾン注入
点からある限界距離以上離れたところでは、生物
付着を抑制できなくなる。生物付着を抑制するた
めには、生物が付着する接触面に、所定濃度のオ
ゾンが所定時間接触する必要があると考えられて
いる。 Since the conventional biofouling control device is configured as described above, the cooling water pipe 10 is
Ozone can be injected intermittently into water pipes such as water pipes, but if the length of the water pipe is long to prevent the attachment of organisms, or if the water flowing through it has a long residence time, ozone will disappear in the water through self-decomposition, etc. Therefore, biofouling cannot be suppressed beyond a certain distance from the ozone injection point. In order to suppress biofouling, it is believed that ozone at a predetermined concentration needs to be in contact with the contact surface to which biofouling attaches for a predetermined period of time.
上記のような従来の装置において、水管内での
オゾンを所定濃度以上に保つためには、水管への
オゾン注入点を複数個設けることが必要になり、
この場合、オゾン供給装置の数を増加しなければ
ならないという欠点があつた。 In the conventional equipment described above, in order to maintain ozone in the water pipe at a predetermined concentration or higher, it is necessary to provide multiple ozone injection points into the water pipe.
In this case, there was a drawback that the number of ozone supply devices had to be increased.
この発明は、上記のような従来のものの欠点を
除去するためになされたもので、オゾンと臭素イ
オンの反応により殺菌力を有し、かつ寿命の長い
次亜臭素酸イオンを生成させ、この次亜臭素酸イ
オンを含有する殺菌液を水管中に注入することに
より、水中での殺菌効果を長時間持続するように
した生物付着抑制装置を提供することを目的とし
ている。 This invention was made in order to eliminate the drawbacks of the conventional methods as described above, and it uses the reaction of ozone and bromide ions to produce hypobromite ions, which have sterilizing power and have a long life. The object of the present invention is to provide a biofouling suppressing device that maintains a sterilizing effect in water for a long time by injecting a sterilizing liquid containing bromite ions into a water pipe.
オゾンは臭素イオンと反応して、次亜臭素酸イ
オンを生成するといわれている。オゾン添加後一
定時間毎に曝気により溶存オゾンを脱気して、残
存次亜臭素酸イオン濃度をヨードメトリーで測定
した結果を第２図の関係曲線図に示す。第２図よ
り、オゾン消費量に対応して、次亜臭素酸イオン
が生成していることがわかる。第３図は生成した
次亜臭素酸イオンの寿命を示す曲線図であり、第
３図より、一旦生成した次亜臭素酸イオンは数日
間にわたつて比較的安定に存在し、長寿命である
ことがわかる。第４図は生成した次亜臭素酸イオ
ンと次亜塩素酸イオンおよびオゾンとの一般細菌
に対する殺菌力を比較した曲線図である。第４図
より、次亜臭素酸イオンはオゾンよりは殺菌力が
劣るものの、次亜塩素酸イオンと同等の殺菌力が
あることがわかる。 Ozone is said to react with bromine ions to produce hypobromite ions. After ozone was added, dissolved ozone was removed by aeration at regular intervals, and the residual hypobromite ion concentration was measured by iodometry. The results are shown in the relationship curve diagram in FIG. From FIG. 2, it can be seen that hypobromite ions are generated in response to the amount of ozone consumed. Figure 3 is a curve diagram showing the lifespan of generated hypobromite ions. From Figure 3, once generated, hypobromite ions exist relatively stably for several days and have a long life. I understand that. FIG. 4 is a curve diagram comparing the sterilizing power of the generated hypobromite ions, hypochlorite ions, and ozone against general bacteria. From FIG. 4, it can be seen that hypobromite ion has a disinfecting power equivalent to that of hypochlorite ion, although its disinfecting power is inferior to that of ozone.
本発明はこのような次亜臭素酸イオンの殺菌力
を利用するもので、殺菌液生成貯留装置において
オゾンと臭素イオンを反応させて次亜臭素酸イオ
ンを生成させて貯留し、この次亜臭素酸イオンを
殺菌液注入装置により水管に注入して生物付着抑
制を行う。以下、本発明を実施例にもとづいて説
明する。第５図は本発明の一実施例による生物付
着抑制装置を示す系統図であり、図において、１
２はオゾン発生機１に供給する空気を乾燥する空
気乾燥機、１３はオゾン発生機１からオゾン化空
気を導入して次亜臭素酸イオンを生成し貯留する
殺菌液生成貯留装置、１４は殺菌液生成貯留装置
１３へ供給する臭素イオンを貯留する臭素イオン
貯留槽、１５は殺菌液生成貯留装置１３から排出
されるオゾンを分解するオゾン分解装置、１６ａ
は臭素イオン貯留槽１４から殺菌液生成貯留装置
１３へ臭素イオンを供給するポンプ、１６ｂは殺
菌液生成貯留装置１３から殺菌液を冷却用水管１
０へ供給するポンプ、１７ａ〜１７ｃはバルブで
ある。 The present invention utilizes the sterilizing power of hypobromite ions, and in a sterilizing liquid generation and storage device, ozone and bromine ions are reacted to generate and store hypobromite ions. Acid ions are injected into water pipes using a sterilizing liquid injection device to suppress biofouling. Hereinafter, the present invention will be explained based on examples. FIG. 5 is a system diagram showing a biofouling control device according to an embodiment of the present invention, and in the figure, 1
2 is an air dryer that dries the air supplied to the ozone generator 1; 13 is a sterilizing liquid generation and storage device that introduces ozonized air from the ozone generator 1 to generate and store hypobromite ions; 14 is a sterilizer A bromide ion storage tank that stores bromide ions to be supplied to the liquid generation and storage device 13; 15 is an ozone decomposition device that decomposes ozone discharged from the sterilizing liquid generation and storage device 13; 16a;
16b is a pump that supplies bromide ions from the bromide ion storage tank 14 to the sterilizing liquid generation storage device 13, and 16b is a water pipe 1 for cooling the sterilizing liquid from the sterilizing liquid generation and storage device 13.
The pumps 17a to 17c supplying the water to the pumps 17a to 17c are valves.
上記のように構成された生物付着抑制装置にお
いては、空気乾燥機１２より乾燥空気がオゾン発
生機１へ送られ、ここでオゾン化空気が発生す
る。オゾン化空気は殺菌液生成貯留装置１３へ送
られる。殺菌液生成貯留装置１３では、臭素イオ
ン貯留槽１４より送られた臭素イオンが、バルブ
１７ａを介して導入された水で希釈されて貯留さ
れており、オゾン化空気は臭素イオンと反応し、
殺菌液としての次亜臭素酸イオンが生成し、貯留
される。ここで生成した次亜臭素酸イオンは殺菌
液注入装置としてのポンプ１６ｂにより、バルブ
１７ｃを介して冷却用水管１０へ送られ、管壁の
生物付着抑制に費やされる。殺菌液生成貯留装置
１３から排出される気体は、オゾン分解塔装置１
５にて余剰オゾンが分解された後、大気中に放出
される。 In the biofouling suppression device configured as described above, dry air is sent from the air dryer 12 to the ozone generator 1, where ozonized air is generated. The ozonized air is sent to the sterilizing liquid production and storage device 13. In the sterilizing liquid generation storage device 13, the bromide ions sent from the bromide ion storage tank 14 are diluted with water introduced through the valve 17a and stored, and the ozonated air reacts with the bromide ions.
Hypobromite ions as a disinfectant are generated and stored. The hypobromite ions generated here are sent to the cooling water pipe 10 via a valve 17c by a pump 16b serving as a sterilizing liquid injection device, and are used to suppress biofouling on the pipe wall. The gas discharged from the sterilizing liquid generation storage device 13 is transferred to the ozone decomposition tower device 1
After the excess ozone is decomposed in step 5, it is released into the atmosphere.
上記実施例では冷却用水管１０への連続的な次
亜臭素酸イオン注入について動作を説明したが、
間欠的な次亜臭素酸イオンの注入も可能である。
その場合の動作は、次亜臭素酸イオン生成貯留動
作と、水管中への次亜臭素酸イオン注入動作に分
けられる。次亜臭素酸イオン生成貯留動作におい
ては、バルブ１７ｃは閉じ、ポンプ１６ｂは停止
している。水および臭素イオンはバルブ１７ａお
よび１７ｂを介して適宜殺菌液生成貯留装置１３
へ送られる。オゾンは連続的にこの殺菌液生成貯
留装置１３に送られ、ここで次亜臭素酸イオンが
所定の濃度（高濃度）に達したのち、バルブ１７
ａ，１７ｂが閉じ、オゾン発生機１およびポンプ
１６ａは停止し、次亜臭素酸イオン注入動作に移
行する。注入動作において、バルブ１７ｃは開と
なり、ポンプ１６ｂが作動し、高濃度次亜臭素酸
イオンが冷却用水管１０に注入される。注入が完
了した時点で再びもとの次亜臭素酸イオン生成貯
留動作に移行し、これらの動作が繰り返される。 In the above embodiment, the operation was explained regarding continuous injection of hypobromite ions into the cooling water pipe 10.
Intermittent injection of hypobromite ions is also possible.
The operation in this case is divided into a hypobromite ion production and storage operation and a hypobromite ion injection operation into the water pipe. In the hypobromite ion generation and storage operation, the valve 17c is closed and the pump 16b is stopped. Water and bromine ions are appropriately supplied to the sterilizing liquid generation and storage device 13 via valves 17a and 17b.
sent to. Ozone is continuously sent to this sterilizing liquid generation storage device 13, and after the hypobromite ions reach a predetermined concentration (high concentration),
a and 17b are closed, the ozone generator 1 and the pump 16a are stopped, and the operation shifts to hypobromite ion injection. In the injection operation, the valve 17c is opened, the pump 16b is operated, and high concentration hypobromite ions are injected into the cooling water pipe 10. When the injection is completed, the operation returns to the original hypobromite ion generation and storage operation, and these operations are repeated.
なお、殺菌液生成貯留装置および殺菌液注入装
置としては第５図の構成に限らず、他の構成のも
のでもよい。またオゾン発生機およびそれに付随
する空気乾燥の形式、構造は限定されない。さら
に殺菌液を注入する水管としては、冷却用水管に
限らず、他の水管であつてもよく、上記実施例と
同様の効果を奏する。 Note that the sterilizing liquid generation and storage device and the sterilizing liquid injection device are not limited to the configuration shown in FIG. 5, but may have other configurations. Further, the type and structure of the ozone generator and the air drying device that accompanies it are not limited. Furthermore, the water pipe into which the sterilizing liquid is injected is not limited to the cooling water pipe, but may be any other water pipe, and the same effects as in the above embodiment can be achieved.
以上のように、この発明によれば、オゾンと臭
素イオンを反応させ、殺菌力を有し寿命の長い次
亜臭素酸イオンを生成させて、水管中に注入する
ことができるので、生物の付着を抑制すべき水管
長が長い場合や、そこを流れる水の滞留時間が長
い場合でも、その水管中の生物付着抑制ができ
る。また、高濃度次亜臭素酸イオンを水管中に間
欠的に注入する場合にも、次亜臭素酸イオンの寿
命が長いため、小容量のオゾン発生機で長時間か
けて高濃度次亜臭素酸イオンを生成貯留すること
ができるので、大型のオゾン発生機を殺菌液注入
時の短時間稼動させる場合に比較して、イニシヤ
ルコストが低減でき、稼動率を下げることなく運
転でき、経済的である。 As described above, according to the present invention, ozone and bromide ions are reacted to generate hypobromite ions, which have sterilizing power and a long lifespan, and can be injected into water pipes. Even if the length of the water pipe to be suppressed is long or the residence time of the water flowing through it is long, it is possible to suppress biofouling in the water pipe. In addition, even when high-concentration hypobromite ions are injected intermittently into water pipes, because the lifespan of hypobromite ions is long, high-concentration hypobromite can be injected over a long period of time using a small-capacity ozone generator. Since ions can be generated and stored, the initial cost can be reduced compared to the case where a large ozone generator is operated for a short time when injecting sterilizing liquid, and it can be operated without reducing the operating rate, making it economical. be.
さらに、オゾンをオゾンとして蓄積、貯蔵する
ためには、第１図に示したように、冷凍機、温ブ
ライン等の加熱源、冷熱源が必要であるが、本装
置ではオゾンを、殺菌力を有し、かつ寿命の長い
次亜臭素酸イオンとして常温にて蓄積貯蔵するた
め、加熱源、冷熱源が不要になる。空気原料で発
生させたオゾンを用いても高濃度次亜臭素酸イオ
ンを生成でき、オゾン発生の原料を酸素原料とす
る必要がない。臭素イオンとオゾンとの反応にお
いて、臭素イオンをオゾンとの反応モル比から算
出される量より少し多めに供給するようにしてお
けば、殺菌液生成貯留装置から排出される気体中
の未反応オゾンの割合が少なくなり、オゾン分解
剤の取り換え頻度が少なくてすむなどの効果があ
る。 Furthermore, as shown in Figure 1, in order to accumulate and store ozone as ozone, a heating source such as a refrigerator or warm brine, and a cold source are required. Since the hypobromite ion is stored at room temperature as a hypobromite ion with a long life, no heating or cooling sources are required. Highly concentrated hypobromite ions can be generated using ozone generated using air as a raw material, and there is no need to use oxygen as the raw material for ozone generation. In the reaction between bromide ions and ozone, if bromide ions are supplied in an amount slightly larger than the amount calculated from the reaction molar ratio with ozone, unreacted ozone in the gas discharged from the sterilizing liquid generation storage device can be removed. This has the effect of reducing the frequency of replacing the ozone decomposer.
第１図は従来の生物付着抑制装置を示す系統
図、第２図は注入オゾン量に対する生成次亜臭素
酸イオン量を示す曲線図、第３図は次亜臭素酸イ
オンの寿命を示す曲線図、第４図は各種殺菌剤の
殺菌力の比較を示す曲線図、第５図は本発明の一
実施例による生物付着抑制装置を示す系統図であ
る。
１……オゾン発生機、２……酸素供給源、３…
…循環ブロア、４……吸脱着塔、５……冷却源、
６……加熱源、７……水流エゼクタ、８ａ〜８ｇ
……切換弁、９……エゼクタ駆動用水管、１０…
…冷却用水管、１１……エゼクタ駆動用ポンプ、
１２……空気乾燥機、１３……殺菌液生成貯留装
置、１４……臭素イオン貯留槽、１５……オゾン
分解装置、１６ａ，１６ｂ……ポンプ、１７ａ〜
１７ｃ……バルブ。なお、各図中、同一符号は同
一または相当部分を示す。
Figure 1 is a system diagram showing a conventional biofouling control device, Figure 2 is a curve diagram showing the amount of hypobromite ions produced versus the amount of ozone injected, and Figure 3 is a curve diagram showing the lifespan of hypobromite ions. , FIG. 4 is a curve diagram showing a comparison of the bactericidal powers of various disinfectants, and FIG. 5 is a system diagram showing a biofouling suppressing device according to an embodiment of the present invention. 1...Ozone generator, 2...Oxygen supply source, 3...
...Circulating blower, 4...Adsorption/desorption tower, 5...Cooling source,
6... Heat source, 7... Water ejector, 8a to 8g
...Switching valve, 9...Ejector drive water pipe, 10...
...Cooling water pipe, 11...Ejector drive pump,
12... Air dryer, 13... Sterilizing liquid production storage device, 14... Bromine ion storage tank, 15... Ozone decomposition device, 16a, 16b... Pump, 17a~
17c...Valve. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (1)
オゾン発生装置で発生させたオゾンを臭素イオン
と反応させ次亜臭素酸イオンを生成させ貯留する
殺菌液生成貯留装置と、この殺菌液を水管中に注
入する殺菌液注入装置を備えたことを特徴とする
生物付着抑制装置。 ２ 殺菌液生成貯留装置は比較的長時間かけて高
濃度殺菌液を生成貯留し、殺菌液注入装置は比較
的短時間に間欠的に高濃度殺菌液を水管中に注入
するようにされていることを特徴とする特許請求
の範囲第１項記載の生物付着抑制装置。[Claims] 1. An ozone generator that generates ozone, a sterilizing liquid production and storage device that reacts the ozone generated by the ozone generator with bromide ions to generate and store hypobromite ions, and a sterilizing solution A biofouling suppression device characterized by comprising a sterilizing liquid injection device for injecting a liquid into a water pipe. 2. The sterilizing liquid generation and storage device generates and stores high-concentration sterilizing liquid over a relatively long period of time, and the sterilizing liquid injection device intermittently injects high-concentration sterilizing liquid into water pipes in a relatively short period of time. A biofouling suppression device according to claim 1, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7451781A JPS57190186A (en) | 1981-05-18 | 1981-05-18 | Inhibitor for adhesion of organism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7451781A JPS57190186A (en) | 1981-05-18 | 1981-05-18 | Inhibitor for adhesion of organism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57190186A JPS57190186A (en) | 1982-11-22 |
| JPS6211918B2 true JPS6211918B2 (en) | 1987-03-16 |
Family
ID=13549592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7451781A Granted JPS57190186A (en) | 1981-05-18 | 1981-05-18 | Inhibitor for adhesion of organism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57190186A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2716126B2 (en) * | 1987-07-10 | 1998-02-18 | 日本シリカ工業株式会社 | Slime control method |
-
1981
- 1981-05-18 JP JP7451781A patent/JPS57190186A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57190186A (en) | 1982-11-22 |
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