JP4746515B2 - Ozone water generator - Google Patents

Ozone water generator Download PDF

Info

Publication number
JP4746515B2
JP4746515B2 JP2006296776A JP2006296776A JP4746515B2 JP 4746515 B2 JP4746515 B2 JP 4746515B2 JP 2006296776 A JP2006296776 A JP 2006296776A JP 2006296776 A JP2006296776 A JP 2006296776A JP 4746515 B2 JP4746515 B2 JP 4746515B2
Authority
JP
Japan
Prior art keywords
ozone
ejector
generator
gas
raw water
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.)
Active
Application number
JP2006296776A
Other languages
Japanese (ja)
Other versions
JP2008114101A (en
Inventor
崇 浦野
文男 早矢仕
八寿雄 中村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Shibaura Machinery Corp
Original Assignee
IHI Shibaura Machinery Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Shibaura Machinery Corp filed Critical IHI Shibaura Machinery Corp
Priority to JP2006296776A priority Critical patent/JP4746515B2/en
Publication of JP2008114101A publication Critical patent/JP2008114101A/en
Application granted granted Critical
Publication of JP4746515B2 publication Critical patent/JP4746515B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Description

本発明は、オゾン水を生成する技術に関する。より詳細には、殺菌や消毒などに利用するオゾンガスを水に効率よく溶解できるオゾン水生成装置の構成技術に関する。   The present invention relates to a technique for generating ozone water. More specifically, the present invention relates to a configuration technology of an ozone water generating apparatus that can efficiently dissolve ozone gas used for sterilization or disinfection in water.

従来、オゾンガスを水に溶解させてオゾン水を生成するオゾン水生成装置には、バブリング方式、エジェクタ方式等があり、例えば、バブリング方式は、水量とオゾンガスの割合に制限がなく、装置に供給される原水圧力が不要という特徴があるが、溶解効率が悪く、装置が大型化してしまう等の問題点がある。また、エジェクタ方式は、装置が小型で、比較的溶解効率も良いため、小型のオゾン水生成装置に広く用いられている。そして、生成されるオゾン水の濃度を高めるために、エジェクタ方式と併用して、溶解部の流れを制御する方法、加圧する方法、スタティックミキサー等を併用する方法（例えば、特許文献１、及び、特許文献２参照）等が用いられている。他には、オゾン水の生成効率を高めるために、使用済みのオゾンガスを再循環して溶解させる方法（例えば、特許文献３参照）等が用いられている。   Conventionally, ozone water generating apparatuses that dissolve ozone gas in water to generate ozone water include a bubbling method, an ejector method, and the like. For example, the bubbling method is not limited in the amount of water and ozone gas, and is supplied to the device. However, there is a problem that the dissolution efficiency is poor and the apparatus is enlarged. In addition, the ejector method is widely used in small ozone water generators because the device is small and has relatively good dissolution efficiency. And in order to raise the density | concentration of the produced | generated ozone water, it uses together with an ejector system, the method of controlling the flow of a melt | dissolution part, the method of pressurizing, the method of using a static mixer etc. together (for example, patent document 1, and Patent Document 2) is used. In addition, in order to increase the generation efficiency of ozone water, a method of recirculating and dissolving used ozone gas (for example, see Patent Document 3) is used.

上述した特許文献１に開示された技術は、スタティックミキサーをエジェクタ下流側に配置し、該スタティックミキサー内部においてオゾンガス及び原水を混合し、溶解させ、オゾン水を製造するもので、オゾン混合水からオゾンが分離することを低減して、オゾン水のオゾン濃度を高くするものである。また、特許文献２に開示された技術は、アスピレータ（エジェクタと同様の作用をもたらすものである）の下流側に長路管を配置し、該長路管内部に粒状体を充填し、簡易ミキサーとして利用し、オゾンガスの原水への溶解効率を高くして、オゾン水のオゾン濃度を高くするものである。特許文献３に開示された技術は、オゾン水生成に使用された使用済みオゾン化ガスを空気中に排出するオゾンガス分離手段の下流側からオゾン生成装置上流側へ循環路を設ける、つまり、空気中に排出されるオゾンを循環し、オゾン生成に再度用いたり、除湿装置、電磁弁等を用いて循環オゾンをオゾン水生成に利用したりすることで、オゾン水生成効率を高くするものである。
特開２０００−１３５４２３号公報 特開２００４−２２３４４１号公報 特開２００３−１４４８７５号公報 In the technique disclosed in Patent Document 1 described above, a static mixer is arranged on the downstream side of the ejector, and ozone gas and raw water are mixed and dissolved in the static mixer to produce ozone water. Is to increase the ozone concentration of ozone water. In addition, the technique disclosed in Patent Document 2 is a simple mixer in which a long path pipe is arranged downstream of an aspirator (which has the same effect as an ejector), and a granular material is filled inside the long path pipe. The ozone concentration of ozone water is increased by increasing the dissolution efficiency of ozone gas into raw water. The technology disclosed in Patent Document 3 provides a circulation path from the downstream side of the ozone gas separation means for discharging the used ozonized gas used for generating ozone water into the air, that is, upstream of the ozone generator, that is, in the air The ozone discharged to the water is circulated and used again for ozone generation, or the ozone is generated efficiently by using the circulating ozone for ozone water generation using a dehumidifier or a solenoid valve.
JP 2000-135423 A JP 2004-223441 A JP 2003-144875 A

以上、特許文献１乃至特許文献３に開示された技術を用いて、オゾン水生成効率を高くすることは可能であると考えられる。しかし、エジェクタ（或いはアスピレータ）吸引口に接続されるオゾン発生装置に負圧が生じると、オゾンガス発生能力が落ちたり、オゾン発生装置に不具合が発生する確率が高くなったりしてしまう。このため、オゾン発生装置に負圧を生じさせないように、注入オゾンガス流量を多くしたり、オゾンガス発生装置下流側に大気開放バイパス等を設けたりする対策がとられている。しかし、エジェクタにおける溶解効率は、原水流量に対する注入オゾンガス流量の比率（気液比）に大きく左右され、注入オゾンガス流量の割合が高くなると溶解効率が悪くなってしまい、オゾン水生成装置全体として効率の良い運転ができなくなってしまう。また、上記対策の他に、オゾン発生装置下流に圧力調整用のバルブを設ける場合がある。この場合には、原水流量（エジェクタの吸引圧力）の変動によりオゾン発生装置内の圧力も変動してしまい、効率の良い運転ができなかった。   As mentioned above, it is thought that it is possible to make ozone water production | generation efficiency high using the technique disclosed by patent document 1 thru | or patent document 3. FIG. However, if a negative pressure is generated in the ozone generator connected to the ejector (or aspirator) suction port, the ozone gas generation capability is lowered, or the probability of occurrence of a malfunction in the ozone generator is increased. For this reason, measures are taken to increase the flow rate of the injected ozone gas or to provide an open air bypass or the like on the downstream side of the ozone gas generator so as not to generate a negative pressure in the ozone generator. However, the dissolution efficiency in the ejector is greatly influenced by the ratio of the injected ozone gas flow rate to the raw water flow rate (gas-liquid ratio), and the higher the ratio of the injected ozone gas flow rate, the lower the dissolution efficiency. You will not be able to drive well. In addition to the above measures, a pressure adjusting valve may be provided downstream of the ozone generator. In this case, the pressure in the ozone generator also fluctuates due to fluctuations in the raw water flow rate (suction pressure of the ejector), and efficient operation cannot be performed.

そこで、本発明の目的は、エジェクタにおけるオゾンガス溶解効率が高く、かつ、オゾン水生成装置全体の運転効率も良いオゾン水生成装置を提供することである。   Therefore, an object of the present invention is to provide an ozone water generating device that has high ozone gas dissolution efficiency in an ejector and that has good operating efficiency of the entire ozone water generating device.

本発明の解決しようとする課題は以上の如くであり、次にこの課題を解決するための手段を説明する。   The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

請求項１においては、オゾン発生装置（４）を備え、該オゾン発生装置（４）によって発生するオゾンガスを水に注入し溶解させる、エジェクタ（８）方式のオゾン水生成装置（１）において、前記エジェクタ（８）に対して原水導入配管（７）より原水を供給し、該エジェクタ（８）内部に吸引圧力を発生し、オゾンガス導入配管（６）よりオゾンガスを吸引し、該エジェクタ（８）内に導入された原水とオゾンガスを内部で混合し、オゾンガスを原水に溶解させる構成であって、前記エジェクタ（８）に導入されるオゾンガスは、酸素発生装置（２）もしくは酸素ボンベより供給される酸素ガスを原料として、前記オゾン発生装置（４）によりオゾンガス化され、該エジェクタ（８）へ導入されるが、前記エジェクタ（８）には、原水の流量に応じた吸引圧力が発生し、該オゾン発生装置（４）の内部も負圧になり、オゾン発生装置（４）の機能が十分な性能を発揮できなくなるのを阻止すべく、前記オゾン発生装置（４）内の内圧を一定に保つレギュレータ（３）を備え、該酸素発生装置（２）で生成した酸素の吐出量を、該レギュレータ（３）で調整し、オゾン発生装置（４）に供給し、かつ、該オゾン発生装置（４）とエジェクタ（８）との間の、オゾンガス導入配管（６）の内部に、適宜の内径を有するオリフィス（５）を設けて、該オリフィス（５）の上流側であるオゾン発生装置（４）と、オリフィス（５）の下流側であるエジェクタ（８）とで差圧を発生させ、前記オゾン発生装置（４）側の内圧を保ち、オリフィス（５）の下流側の圧力を低下させ、該原水の流量により変動するエジェクタ（８）の吸引圧力に応じて、原水の流量が多ければ吸引圧力も高くなり、オゾンガス流量も増え、原水の流量が少なければ、吸引圧力も低くなり、オゾンガス流量が減り、該オリフィス（５）による差圧分に応じたオゾンガスが、該エジェクタ（８）に導入され、
該原水の流量に対して、該エジェクタ（８）により吸引されるオゾンガスの流量の気液比を２％〜６％として、オゾン水を生成するものである。 According to claim 1, in an ozone water generator (1) of an ejector (8) system, comprising an ozone generator (4), and injecting ozone gas generated by the ozone generator (4) into water and dissolving it. Raw water is supplied to the ejector (8) from the raw water introduction pipe (7), suction pressure is generated inside the ejector (8), ozone gas is sucked from the ozone gas introduction pipe (6), and the ejector (8) The ozone water introduced into the ejector (8) is composed of oxygen supplied from an oxygen generator (2) or an oxygen cylinder. Using gas as a raw material, ozone gas is converted into ozone gas by the ozone generator (4) and introduced into the ejector (8). The ejector (8) contains raw water. In order to prevent the suction pressure corresponding to the amount from being generated and the inside of the ozone generator (4) to become a negative pressure, the function of the ozone generator (4) cannot be fully performed. A regulator (3) that keeps the internal pressure in the device (4) constant is provided, and the discharge amount of oxygen generated by the oxygen generator (2) is adjusted by the regulator (3), and the ozone generator (4) An orifice (5) having an appropriate inner diameter is provided inside the ozone gas introduction pipe (6) between the ozone generator (4) and the ejector (8). Differential pressure is generated between the ozone generator (4) on the upstream side and the ejector (8) on the downstream side of the orifice (5) to maintain the internal pressure on the ozone generator (4) side, and the orifice (5 ) Downstream pressure of the raw water Depending on the suction pressure of the ejector (8), which varies depending on the amount, if the raw water flow rate is high, the suction pressure increases, the ozone gas flow rate increases, and if the raw water flow rate is low, the suction pressure decreases, the ozone gas flow rate decreases, Ozone gas corresponding to the differential pressure due to the orifice (5) is introduced into the ejector (8),
Ozone water is generated by setting the gas-liquid ratio of the flow rate of ozone gas sucked by the ejector (8) to 2% to 6% with respect to the flow rate of the raw water .

請求項２においては、オゾン発生装置（４）を備え、該オゾン発生装置（４）によって発生するオゾンガスを原水に注入し溶解させる、エジェクタ（８）方式のオゾン水生成装置（１）において、前記エジェクタ（８）に対して原水導入配管（７）より原水を供給し、該エジェクタ（８）内部に吸引圧力を発生し、オゾンガス導入配管（６）よりオゾンガスを吸引し、該エジェクタ（８）内に導入された原水とオゾンガスを内部で混合し、オゾンガスを原水に溶解させる構成であって、前記エジェクタ（８）に導入されるオゾンガスは、酸素発生装置（２）もしくは酸素ボンベより供給される酸素ガスを原料として、前記オゾン発生装置（４）によりオゾンガス化され、該エジェクタ（８）へ導入されるが、前記エジェクタ（８）には、原水の流量に応じた吸引圧力が発生し、該オゾン発生装置（４）の内部も負圧になり、オゾン発生装置（４）の機能が十分な性能を発揮できなくなるのを阻止すべく、前記オゾン発生装置（４）内の内圧を一定に保つレギュレータ（３）を備え、該酸素発生装置（２）で生成した酸素の吐出量を、該レギュレータ（３）で調整してオゾン発生装置（４）に供給し、かつ、該オゾン発生装置（４）とエジェクタ（８）との間にオリフィス（５）を設けて、該オゾン発生装置（４）内の内圧を一定に保ち、前記原水導入配管（７）の途中に電磁バルブ（２１）を設け、該電磁バルブ（２１）の出力側に流量検知手段（２２）を設け、それぞれを制御装置（２０）と接続し、該原水導入配管（７）からの流量を電磁バルブ（２１）により調整可能に構成して、該オリフィス（５）からのオゾンガスの流量を調整し、原水の流量に対するオゾンガスの流量の気液比を２％〜６％として、オゾン水を生成するものである。 According to claim 2, in an ozone water generator (1) of an ejector (8) system, comprising an ozone generator (4), and injecting ozone gas generated by the ozone generator (4) into raw water and dissolving it. Raw water is supplied to the ejector (8) from the raw water introduction pipe (7), suction pressure is generated inside the ejector (8), ozone gas is sucked from the ozone gas introduction pipe (6), and the ejector (8) The ozone water introduced into the ejector (8) is composed of oxygen supplied from an oxygen generator (2) or an oxygen cylinder. Using gas as a raw material, ozone gas is converted into ozone gas by the ozone generator (4) and introduced into the ejector (8). In order to prevent the suction pressure corresponding to the flow rate from being generated and the inside of the ozone generator (4) to become a negative pressure, the function of the ozone generator (4) cannot be fully performed. A regulator (3) for keeping the internal pressure in the apparatus (4) constant is provided, and the amount of oxygen generated by the oxygen generator (2) is adjusted by the regulator (3) to the ozone generator (4). And an orifice (5) is provided between the ozone generator (4) and the ejector (8) to keep the internal pressure in the ozone generator (4) constant, and the raw water introduction pipe (7 ), An electromagnetic valve (21) is provided in the middle, flow rate detection means (22) is provided on the output side of the electromagnetic valve (21), each is connected to the control device (20), and the raw water introduction pipe (7) is connected. The flow rate can be adjusted by the electromagnetic valve (21) Te, and adjust the flow rate of the ozone gas from the orifice (5), the flow gas-liquid ratio of ozone gas to the flow rate of the raw water as a 2% to 6%, and generates ozone water.

本発明の効果として、以下に示すような効果を奏する。   As effects of the present invention, the following effects can be obtained.

請求項１と請求項２の如く構成したので、オゾン溶解率の高い、原水の流量と注入オゾンガス流量との比率（気液比）で運転することで、未溶解のオゾンガス量が減ることにより、オゾンガス分解ユニットの小型化が可能となり、オゾン水生成装置全体の小型化が図れる。
また、オゾン溶解効率が良いことで、原水の水温の影響を受けにくくなる。 Since it comprised like Claim 1 and Claim 2, by operating by the ratio (gas-liquid ratio) of the flow rate of raw | natural water and injection | pouring ozone gas flow rate with high ozone dissolution rate, the amount of undissolved ozone gas reduces, The ozone gas decomposition unit can be downsized, and the entire ozone water generating apparatus can be downsized.
Moreover, it becomes difficult to receive the influence of the water temperature of raw | natural water because ozone dissolution efficiency is good.

また、オリフィスを介して原水流量（エジェクタの吸引圧力）に応じた最適な気液比のオゾンガスを吸引することにより、常に高効率のオゾン水生成が可能になり、原水流量に応じたオゾンガス注入量の調整が不要になる。
また、オゾン発生装置の内圧の変化がないため、オゾン発生装置の安定した運転を実現できる。 In addition , by drawing ozone gas with an optimum gas-liquid ratio according to the raw water flow rate (ejector suction pressure) through the orifice, it is possible to always generate highly efficient ozone water, and the ozone gas injection amount according to the raw water flow rate No adjustment is required.
Moreover, since there is no change in the internal pressure of the ozone generator, stable operation of the ozone generator can be realized.

次に、発明の実施の形態を説明する。図１は本発明の一実施例に係るオゾン水生成装置の構成を示すブロック図、図２は本発明の別実施例に係るオゾン水生成装置の構成を示すブロック図である。   Next, embodiments of the invention will be described. FIG. 1 is a block diagram showing a configuration of an ozone water generating apparatus according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a configuration of an ozone water generating apparatus according to another embodiment of the present invention.

図１に示すオゾン水生成装置１は、エジェクタ８に対して原水導入配管７より原水を供給することにより、エジェクタ８内部に吸引圧力が発生し、オゾンガス導入配管６よりオゾンガスを吸引する。エジェクタ８内に導入された原水とオゾンガスは内部で混合され、オゾンガスが原水に溶解し、気液混合オゾン水供給配管９より気液分離タンク１０に供給される。なお、図２に示すように、原水導入配管７の途中には、電磁バルブ２１とその出力側に流量検知手段２２を設けて、それぞれ制御装置２０と接続し、原水導入配管７からの流量（または水圧）を調整可能に構成することもできる。該オゾンガスは、酸素発生装置２より供給された酸素をオゾン発生装置４でオゾンガス化したものである。該酸素発生装置２には、高濃度の酸素を供給できるＰＳＡ（Ｐｒｅｓｓｕｒｅ Ｓｗｉｎｇ Ａｄｓｏｒｐｔｉｏｎ）式酸素製造装置を用いている。なお、オゾンガスは図２に示すように、酸素発生装置２、レギュレータ３、オゾン発生装置４、オリフィス５を制御装置２０と接続して、酸素発生装置２で生成した酸素の吐出量をレギュレータ３で調整して、オゾン発生装置４に供給し、同時に前記制御装置２０に接続される流量検知手段２３でオリフィス（圧力調整バルブ）５からの吐出量を検知して、該オリフィス５の吐出量を調整することも可能である。なお、前記エジェクタ８は同様の原理を利用してなるアスピレータに置換することも可能である。また、前記酸素発生装置２は酸素ボンベ等を代用することもできる。   The ozone water generator 1 shown in FIG. 1 supplies raw water from the raw water introduction pipe 7 to the ejector 8, thereby generating suction pressure inside the ejector 8 and sucking ozone gas from the ozone gas introduction pipe 6. The raw water and ozone gas introduced into the ejector 8 are mixed inside, and the ozone gas is dissolved in the raw water and supplied to the gas-liquid separation tank 10 from the gas-liquid mixed ozone water supply pipe 9. As shown in FIG. 2, in the middle of the raw water introduction pipe 7, an electromagnetic valve 21 and a flow rate detection means 22 are provided on the output side thereof, respectively connected to the control device 20, and the flow rate ( Alternatively, the water pressure can be adjusted. The ozone gas is obtained by converting oxygen supplied from the oxygen generator 2 into ozone gas by the ozone generator 4. The oxygen generator 2 is a PSA (Pressure Swing Adsorption) type oxygen production apparatus that can supply high concentration of oxygen. As shown in FIG. 2, the ozone gas is generated by connecting the oxygen generator 2, the regulator 3, the ozone generator 4, and the orifice 5 to the control device 20, and the amount of oxygen generated by the oxygen generator 2 is controlled by the regulator 3. Adjust and supply to the ozone generator 4, and simultaneously detect the discharge amount from the orifice (pressure adjusting valve) 5 by the flow rate detection means 23 connected to the control device 20 to adjust the discharge amount of the orifice 5. It is also possible to do. The ejector 8 can be replaced with an aspirator using the same principle. The oxygen generator 2 can be replaced with an oxygen cylinder or the like.

このようにして生成されたオゾン水には、未溶解のオゾンガスが含まれているが、オゾンガスは人体に有害であるので、前記エジェクタ８にて生成された気液混合のオゾン水からは未溶解のオゾンガスを除去して使用される。つまり、前記気液混合オゾン水供給配管９より供給される気液混合のオゾン水は、前記気液分離タンク１０において、オゾンガス（気体）とオゾン水（液体）に分離されて、オゾン水はオゾン水供給配管１４より外部に供給される。一方、オゾンガスは未溶解オゾンガス排出配管１１より未溶解オゾン分解装置１２に供給されて、該未溶解オゾン分解装置１２内にてオゾンを無害な酸素に分解した後、分解済みオゾンガス排出配管１３を通じて大気中に排出される。   The ozone water thus generated contains undissolved ozone gas. However, since ozone gas is harmful to the human body, it is not dissolved from the gas-liquid mixed ozone water generated by the ejector 8. Used by removing ozone gas. That is, the gas-liquid mixed ozone water supplied from the gas-liquid mixed ozone water supply pipe 9 is separated into ozone gas (gas) and ozone water (liquid) in the gas-liquid separation tank 10, and the ozone water is ozone. It is supplied to the outside through the water supply pipe 14. On the other hand, ozone gas is supplied to the undissolved ozone decomposing apparatus 12 from the undissolved ozone gas discharge pipe 11, decomposes ozone into harmless oxygen in the undissolved ozone decomposing apparatus 12, and then passes through the decomposed ozone gas discharge pipe 13 to the atmosphere. Discharged inside.

ここで、該オゾン水生成装置１の効率は供給するオゾンガスの量に対する、原水に溶解したオゾンガスの量の比率（以下、「溶解効率」という）で表すことができる。この溶解効率は、原水の流量に対するオゾンガスの流量の比率（以下、「気液比」という）に大きく左右されることが知られており、この気液比を本実施例において、２％〜６％として運転することによって、溶解効率が８５％を上回ることが確認されたのである。   Here, the efficiency of the ozone water generator 1 can be expressed by the ratio of the amount of ozone gas dissolved in the raw water to the amount of ozone gas to be supplied (hereinafter referred to as “dissolution efficiency”). It is known that the dissolution efficiency greatly depends on the ratio of the flow rate of ozone gas to the flow rate of raw water (hereinafter referred to as “gas-liquid ratio”). This gas-liquid ratio is 2% to 6% in this embodiment. By operating as%, it was confirmed that the dissolution efficiency exceeded 85%.

以上のように構成することで、オゾンガスの溶解効率が高く保持されるので、未溶解オゾンガス量を小さくすることができ、未溶解オゾン分解装置１２を小型化することが可能となるとともに、オゾン水生成装置１全体を小型化することが可能となる。   With the above configuration, the ozone gas dissolution efficiency is kept high, so that the amount of undissolved ozone gas can be reduced, the undissolved ozone decomposing apparatus 12 can be downsized, and the ozone water The entire generation device 1 can be downsized.

一方、前記エジェクタ８に導入されるオゾンガスは、酸素発生装置２で生成される酸素ガスを原料として、オゾン発生装置４でオゾンガス化され、エジェクタ８へ導入される。このとき、エジェクタ８には、原水の流量に応じた吸引圧力が発生する。しかし、オゾン発生装置４は内部が負圧になると十分な性能を発揮できないため、オゾン発生装置４とエジェクタ８との間にオリフィス５を設けてオゾン発生装置４内の内圧を保つ。つまり、オゾンガス導入配管６内部に、適宜の内径を有するオリフィス５を固定する。該オリフィス５の内径は該オゾンガス導入配管６の内径より小さいためオリフィス５通過時に流路の断面積が縮小して流速が増加し、下流側の圧力が低下する。この圧力低下は流量にほぼ比例することが広く知られており、本実施例における流量とは、エジェクタ８によって吸引されるオゾンガスの注入流量である。言い換えれば、オゾン発生装置４（オリフィス５の上流側）と、エジェクタ８（オリフィス５の下流側）との差圧が（発生するが）、オゾンガスの注入流量によらずに、オゾン発生装置４の内圧が保たれるということである。なお、該オリフィス５は同様の作用をもたらす可変の圧力調整バルブを代用してもよい。 On the other hand, the ozone gas introduced into the ejector 8 is converted into ozone gas by the ozone generator 4 using the oxygen gas generated by the oxygen generator 2 as a raw material, and is introduced into the ejector 8. At this time, suction pressure corresponding to the flow rate of the raw water is generated in the ejector 8. However, since the ozone generator 4 cannot exhibit sufficient performance when the internal pressure becomes negative, an orifice 5 is provided between the ozone generator 4 and the ejector 8 to maintain the internal pressure in the ozone generator 4. That is, the orifice 5 having an appropriate inner diameter is fixed inside the ozone gas introduction pipe 6. Since the inner diameter of the orifice 5 is smaller than the inner diameter of the ozone gas introduction pipe 6, the cross-sectional area of the flow path is reduced when passing through the orifice 5, the flow velocity is increased, and the downstream pressure is reduced. It is widely known that this pressure drop is substantially proportional to the flow rate, and the flow rate in this embodiment is the injection flow rate of ozone gas sucked by the ejector 8. In other words, the differential pressure between the ozone generator 4 (upstream of the orifice 5) and the ejector 8 (downstream of the orifice 5) is generated, but regardless of the ozone gas injection flow rate, The internal pressure is maintained. The orifice 5 may be replaced with a variable pressure regulating valve that provides the same action.

しかし、エジェクタ８で発生する吸引圧力は原水の流量に応じて変動するため、固定のオリフィス５を用いた場合、原水の流量によってはオリフィス５の余裕度限界を超える場合があり、オゾン発生装置４の内圧が変化してしまうことがある。そこで、原水の流量によらずオゾン発生装置４の内圧を一定にすべく、レギュレータ３を該オゾン発生装置４の上流側、つまり、酸素発生装置２とオゾン発生装置４との間に設けるのである。言い換えれば、該レギュレータ３は前記酸素発生装置２によって生成される酸素の圧力を一定の圧力に減圧、或いは、整圧して、オゾン発生装置４に供給するためのものである。このレギュレータ３の作用によって、該オゾン発生装置４に安定した酸素の供給が行なわれ、同時にオゾン発生装置４内の内圧の変動を抑えることができるのである。   However, since the suction pressure generated in the ejector 8 varies depending on the flow rate of the raw water, when the fixed orifice 5 is used, the margin limit of the orifice 5 may be exceeded depending on the flow rate of the raw water. The internal pressure may change. Therefore, in order to make the internal pressure of the ozone generator 4 constant regardless of the flow rate of raw water, the regulator 3 is provided on the upstream side of the ozone generator 4, that is, between the oxygen generator 2 and the ozone generator 4. . In other words, the regulator 3 is for reducing the pressure of oxygen generated by the oxygen generator 2 to a constant pressure or adjusting the pressure and supplying it to the ozone generator 4. By the action of the regulator 3, a stable supply of oxygen is performed to the ozone generator 4, and at the same time, fluctuations in the internal pressure in the ozone generator 4 can be suppressed.

以上のような構成により、原水の流量が変動しても、オゾン発生装置４の内圧は一定に保たれて、該オゾン発生装置４の性能を十分に発揮することが可能となる。また、原水の流量により、エジェクタ８による吸引圧力が変動するが、該オリフィス５による差圧分に応じたオゾンガスが該エジェクタ８に導入されることになる。つまり、原水の流量が多ければ、吸引圧力も高くなり、注入オゾンガス流量も増える。逆に、原水の流量が少なければ、吸引圧力も低くなり、注入オゾンガス流量が減る。このように、常に、溶解効率の良い気液比を実現でき、オゾン水生成装置１全体としての効率も高くなる。   With the above configuration, even if the flow rate of the raw water fluctuates, the internal pressure of the ozone generator 4 can be kept constant, and the performance of the ozone generator 4 can be fully exhibited. Further, the suction pressure by the ejector 8 varies depending on the flow rate of the raw water, but ozone gas corresponding to the differential pressure by the orifice 5 is introduced into the ejector 8. That is, if the raw water flow rate is large, the suction pressure increases and the injected ozone gas flow rate also increases. On the other hand, if the flow rate of raw water is small, the suction pressure becomes low and the flow rate of injected ozone gas decreases. Thus, a gas-liquid ratio with good dissolution efficiency can always be realized, and the efficiency of the ozone water generator 1 as a whole is also increased.

以上のように、オゾン発生装置４を備え、前記オゾン発生装置４によって発生するオゾンガスを水に注入し溶解させる、エジェクタ８を備えるオゾン水生成装置１において、水の流量に対する注入オゾンガスの流量の比率を２％〜６％にて運転することとしたので、オゾン溶解率の高い、原水の流量と注入オゾンガス流量との比率（気液比）で運転することで、未溶解のオゾンガス量が減ることにより、未溶解オゾン分解装置１２の小型化が可能となり、オゾン水生成装置１全体の小型化が図れる。また、オゾン溶解効率が良いことで、原水の水温の影響を受けにくくなる。また、前記オゾン発生装置４内の内圧を一定に保つレギュレータ３を備え、前記オゾン発生装置４とエジェクタ８吸引口との間にオリフィス５を設けることとしたので、オリフィス５を介して原水流量（エジェクタ８の吸引圧力）に応じた最適な気液比のオゾンガスを吸引することにより、常に高効率のオゾン水生成が可能になり、原水流量に応じたオゾンガス注入量の調整が不要になる。また、レギュレータ３の作用によってオゾン発生装置４の内圧の変化がないため、オゾン発生装置４の安定した運転を実現できる。   As described above, the ratio of the flow rate of injected ozone gas to the flow rate of water in the ozone water generation device 1 including the ejector 8 that includes the ozone generator 4 and injects and dissolves ozone gas generated by the ozone generator 4 into water. Therefore, the amount of undissolved ozone gas can be reduced by operating at a ratio (gas-liquid ratio) between the flow rate of raw water and the flow rate of injected ozone gas, which has a high ozone dissolution rate. Thus, the undissolved ozonolysis apparatus 12 can be downsized, and the entire ozone water generating apparatus 1 can be downsized. Moreover, it becomes difficult to receive the influence of the water temperature of raw | natural water because ozone dissolution efficiency is good. Further, the regulator 3 is provided to keep the internal pressure in the ozone generator 4 constant, and the orifice 5 is provided between the ozone generator 4 and the ejector 8 suction port. By sucking ozone gas having an optimum gas-liquid ratio according to the suction pressure of the ejector 8, it is possible to always generate highly efficient ozone water, and it is not necessary to adjust the ozone gas injection amount according to the raw water flow rate. Further, since the internal pressure of the ozone generator 4 is not changed by the action of the regulator 3, a stable operation of the ozone generator 4 can be realized.

本発明の一実施例に係るオゾン水生成装置の構成を示すブロック図。The block diagram which shows the structure of the ozone water generating apparatus which concerns on one Example of this invention. 本発明の別実施例に係るオゾン水生成装置の構成を示すブロック図。The block diagram which shows the structure of the ozone water generating apparatus which concerns on another Example of this invention.

１ オゾン水生成装置
３ レギュレータ
４ オゾン発生装置
５ オリフィス
８ エジェクタ 1 Ozone water generator 3 Regulator 4 Ozone generator 5 Orifice 8 Ejector

Claims (2)

オゾン発生装置（４）を備え、該オゾン発生装置（４）によって発生するオゾンガスを水に注入し溶解させる、エジェクタ（８）方式のオゾン水生成装置（１）において、前記エジェクタ（８）に対して原水導入配管（７）より原水を供給し、該エジェクタ（８）内部に吸引圧力を発生し、オゾンガス導入配管（６）よりオゾンガスを吸引し、該エジェクタ（８）内に導入された原水とオゾンガスを内部で混合し、オゾンガスを原水に溶解させる構成であって、前記エジェクタ（８）に導入されるオゾンガスは、酸素発生装置（２）もしくは酸素ボンベより供給される酸素ガスを原料として、前記オゾン発生装置（４）によりオゾンガス化され、該エジェクタ（８）へ導入されるが、前記エジェクタ（８）には、原水の流量に応じた吸引圧力が発生し、該オゾン発生装置（４）の内部も負圧になり、オゾン発生装置（４）の機能が十分な性能を発揮できなくなるのを阻止すべく、前記オゾン発生装置（４）内の内圧を一定に保つレギュレータ（３）を備え、該酸素発生装置（２）で生成した酸素の吐出量を、該レギュレータ（３）で調整し、オゾン発生装置（４）に供給し、かつ、該オゾン発生装置（４）とエジェクタ（８）との間の、オゾンガス導入配管（６）の内部に、適宜の内径を有するオリフィス（５）を設けて、該オリフィス（５）の上流側であるオゾン発生装置（４）と、オリフィス（５）の下流側であるエジェクタ（８）とで差圧を発生させ、前記オゾン発生装置（４）側の内圧を保ち、オリフィス（５）の下流側の圧力を低下させ、該原水の流量により変動するエジェクタ（８）の吸引圧力に応じて、原水の流量が多ければ吸引圧力も高くなり、オゾンガス流量も増え、原水の流量が少なければ、吸引圧力も低くなり、オゾンガス流量が減り、該オリフィス（５）による差圧分に応じたオゾンガスが、該エジェクタ（８）に導入され、該原水の流量に対して、該エジェクタ（８）により吸引されるオゾンガスの流量の気液比を２％〜６％として、オゾン水を生成することを特徴とするオゾン水生成装置。 In an ejector (8) type ozone water generator (1) comprising an ozone generator (4) and injecting ozone gas generated by the ozone generator (4) into water and dissolving it, the ejector (8) The raw water is supplied from the raw water introduction pipe (7), the suction pressure is generated inside the ejector (8), the ozone gas is sucked from the ozone gas introduction pipe (6), and the raw water introduced into the ejector (8) The ozone gas is mixed inside, and the ozone gas is dissolved in the raw water. The ozone gas introduced into the ejector (8) is obtained by using the oxygen gas supplied from the oxygen generator (2) or the oxygen cylinder as a raw material. Ozone gas is generated by the ozone generator (4) and introduced into the ejector (8). The ejector (8) has a suction pressure corresponding to the flow rate of the raw water. In order to prevent the ozone generator (4) from generating a negative pressure and preventing the function of the ozone generator (4) from exhibiting sufficient performance, the internal pressure in the ozone generator (4) A regulator (3) that keeps the pressure constant, the discharge amount of oxygen generated by the oxygen generator (2) is adjusted by the regulator (3), supplied to the ozone generator (4), and the ozone Ozone generation on the upstream side of the orifice (5) by providing an orifice (5) having an appropriate inner diameter inside the ozone gas introduction pipe (6) between the generator (4) and the ejector (8) A differential pressure is generated between the device (4) and the ejector (8) downstream of the orifice (5), the internal pressure on the ozone generator (4) side is maintained, and the pressure on the downstream side of the orifice (5) is reduced. Reduced and fluctuates with the flow rate of the raw water If the raw water flow rate is high, the suction pressure increases and the ozone gas flow rate increases, and if the raw water flow rate is low, the suction pressure decreases and the ozone gas flow rate decreases. ) Is introduced into the ejector (8), and the gas-liquid ratio of the flow rate of ozone gas sucked by the ejector (8) with respect to the flow rate of the raw water is 2% to 6%. As an ozone water generating device, generating ozone water. オゾン発生装置（４）を備え、該オゾン発生装置（４）によって発生するオゾンガスを原水に注入し溶解させる、エジェクタ（８）方式のオゾン水生成装置（１）において、前記エジェクタ（８）に対して原水導入配管（７）より原水を供給し、該エジェクタ（８）内部に吸引圧力を発生し、オゾンガス導入配管（６）よりオゾンガスを吸引し、該エジェクタ（８）内に導入された原水とオゾンガスを内部で混合し、オゾンガスを原水に溶解させる構成であって、前記エジェクタ（８）に導入されるオゾンガスは、酸素発生装置（２）もしくは酸素ボンベより供給される酸素ガスを原料として、前記オゾン発生装置（４）によりオゾンガス化され、該エジェクタ（８）へ導入されるが、前記エジェクタ（８）には、原水の流量に応じた吸引圧力が発生し、該オゾン発生装置（４）の内部も負圧になり、オゾン発生装置（４）の機能が十分な性能を発揮できなくなるのを阻止すべく、前記オゾン発生装置（４）内の内圧を一定に保つレギュレータ（３）を備え、該酸素発生装置（２）で生成した酸素の吐出量を、該レギュレータ（３）で調整してオゾン発生装置（４）に供給し、かつ、該オゾン発生装置（４）とエジェクタ（８）との間にオリフィス（５）を設けて、該オゾン発生装置（４）内の内圧を一定に保ち、前記原水導入配管（７）の途中に電磁バルブ（２１）を設け、該電磁バルブ（２１）の出力側に流量検知手段（２２）を設け、それぞれを制御装置（２０）と接続し、該原水導入配管（７）からの流量を電磁バルブ（２１）により調整可能に構成して、該オリフィス（５）からのオゾンガスの流量を調整し、原水の流量に対するオゾンガスの流量の気液比を２％〜６％として、オゾン水を生成することを特徴とするオゾン水生成装置。 In an ejector (8) type ozone water generator (1) comprising an ozone generator (4) and injecting ozone gas generated by the ozone generator (4) into raw water and dissolving it, the ejector (8) The raw water is supplied from the raw water introduction pipe (7), the suction pressure is generated inside the ejector (8), the ozone gas is sucked from the ozone gas introduction pipe (6), and the raw water introduced into the ejector (8) The ozone gas is mixed inside, and the ozone gas is dissolved in the raw water. The ozone gas introduced into the ejector (8) is obtained by using the oxygen gas supplied from the oxygen generator (2) or the oxygen cylinder as a raw material. Ozone gas is generated by the ozone generator (4) and introduced into the ejector (8). The ejector (8) has a suction pressure according to the flow rate of the raw water. In order to prevent the inside of the ozone generator (4) from becoming negative pressure and the function of the ozone generator (4) from being unable to exhibit sufficient performance. A regulator (3) for keeping the internal pressure constant, the amount of oxygen generated by the oxygen generator (2) is adjusted by the regulator (3) and supplied to the ozone generator (4); and An orifice (5) is provided between the ozone generator (4) and the ejector (8), the internal pressure in the ozone generator (4) is kept constant, and an electromagnetic valve is placed in the middle of the raw water introduction pipe (7). (21), a flow rate detection means (22) is provided on the output side of the electromagnetic valve (21), each is connected to a control device (20), and the flow rate from the raw water introduction pipe (7) is reduced to an electromagnetic valve ( 21), the orifice ( ) To adjust the flow rate of the ozone gas from the flow gas-liquid ratio of ozone gas to the flow rate of the raw water as a 2% to 6%, the ozone water producing apparatus characterized by generating ozone water.
JP2006296776A 2006-10-31 2006-10-31 Ozone water generator Active JP4746515B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006296776A JP4746515B2 (en) 2006-10-31 2006-10-31 Ozone water generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006296776A JP4746515B2 (en) 2006-10-31 2006-10-31 Ozone water generator

Publications (2)

Publication Number Publication Date
JP2008114101A JP2008114101A (en) 2008-05-22
JP4746515B2 true JP4746515B2 (en) 2011-08-10

Family

ID=39500528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006296776A Active JP4746515B2 (en) 2006-10-31 2006-10-31 Ozone water generator

Country Status (1)

Country Link
JP (1) JP4746515B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110030730A1 (en) * 2008-03-13 2011-02-10 Lynn Daniel W System for producing and distributing an ozonated fluid

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04265197A (en) * 1991-02-21 1992-09-21 Japan Steel Works Ltd:The Production of aqueous ozone and equipment therefor
JPH06206084A (en) * 1993-01-07 1994-07-26 Fuji Electric Co Ltd Introduction of ozone gas into downstream dissolving type water treating device
JPH08133707A (en) * 1994-11-09 1996-05-28 Ebara Corp Ozone generating method, device therefor and its usage
JPH08243571A (en) * 1995-03-08 1996-09-24 Meidensha Corp Bottom-injection type multistage ozone contact tank and control method thereof
JP2001149964A (en) * 1999-11-30 2001-06-05 Mitsubishi Electric Corp Water treating method
JP2003260341A (en) * 2002-03-08 2003-09-16 Sasakura Engineering Co Ltd Ozonized water supplying apparatus
JP2004249277A (en) * 2002-12-27 2004-09-09 Kurita Water Ind Ltd Water treating method and apparatus therefor
JP2004267868A (en) * 2003-03-06 2004-09-30 Kosuke Chiba System for dissolving/storing/supplying gas with line atomizer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0621010B2 (en) * 1988-05-06 1994-03-23 住友精密工業株式会社 A method to generate high-purity, high-concentration ozone with almost no change over time
JP3651780B2 (en) * 2000-02-08 2005-05-25 株式会社東芝 Ozone generator
JP3642572B2 (en) * 2003-05-09 2005-04-27 東芝三菱電機産業システム株式会社 Ozone generator and ozone generation method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04265197A (en) * 1991-02-21 1992-09-21 Japan Steel Works Ltd:The Production of aqueous ozone and equipment therefor
JPH06206084A (en) * 1993-01-07 1994-07-26 Fuji Electric Co Ltd Introduction of ozone gas into downstream dissolving type water treating device
JPH08133707A (en) * 1994-11-09 1996-05-28 Ebara Corp Ozone generating method, device therefor and its usage
JPH08243571A (en) * 1995-03-08 1996-09-24 Meidensha Corp Bottom-injection type multistage ozone contact tank and control method thereof
JP2001149964A (en) * 1999-11-30 2001-06-05 Mitsubishi Electric Corp Water treating method
JP2003260341A (en) * 2002-03-08 2003-09-16 Sasakura Engineering Co Ltd Ozonized water supplying apparatus
JP2004249277A (en) * 2002-12-27 2004-09-09 Kurita Water Ind Ltd Water treating method and apparatus therefor
JP2004267868A (en) * 2003-03-06 2004-09-30 Kosuke Chiba System for dissolving/storing/supplying gas with line atomizer

Also Published As

Publication number Publication date
JP2008114101A (en) 2008-05-22

Similar Documents

Publication Publication Date Title
US20220144676A1 (en) Gas injection systems for optimizing nanobubble formation in a disinfecting solution
JP5916350B2 (en) High concentration oxygen water generating device, high concentration oxygen water irrigation device, and high concentration oxygen water generating method
KR20100039128A (en) Ozonized water generator
JP2009195813A (en) Ozone water manufacturing device
JP2004188246A (en) System for manufacturing ozonized water
TWI225038B (en) Ozone water supplying apparatus
JP2009112979A (en) Apparatus and method for producing ozone water
JP4746515B2 (en) Ozone water generator
JP4358779B2 (en) High concentration oxygen bubble water supply device and plant cultivation device using the same
JP2009195882A (en) Method for producing hydrogen reduction water
WO2015072461A1 (en) Microbicidal liquid-generating device
EP3978109A1 (en) Gas solution supply device
JP2014117628A (en) Circulation type method and apparatus for supplying ozone water
JP2016002533A (en) Production apparatus and method of ozone water using dissolved oxygen contained in raw water as raw material
JP2013094747A (en) Ozone liquid generator and ozone liquid generation method
JP2012213743A (en) Ozone water supply method and ozone water supply device
JP7051598B2 (en) Aquatic organism breeding equipment
JP5099519B2 (en) Gas dissolved water supply device
JPH044089A (en) Gas dissolved water producing device
JP2003236353A (en) Apparatus for producing ozonized water
JP2018153727A (en) Ozone water supply system
JP2013208555A (en) Ozone dissolving device
JPH11262781A (en) Ozone water making apparatus
KR200294894Y1 (en) Apparatus for forming ozon water
JP2011092893A (en) Gas-dissolved liquid manufacturing system

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090908

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110224

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110301

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110412

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110510

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110513

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140520

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4746515

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: R3D02

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250