JP2013150966A - Ozone-containing liquid production unit and cleaning apparatus provided with the same, and ozone-containing liquid production method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ozone-containing liquid production unit that can suppress a user to suck an ozone gas and gives consideration to safety.SOLUTION: An ozone-containing liquid production unit 1A includes: a suction passage L3 for sucking gas containing oxygen as a raw material gas via a suction port 4; an ozonizer 20 for generating an ozone gas using the raw material gas sucked via the suction port 4; a gas-liquid mixer 10 for producing an ozone-containing liquid 70 by mixing a liquid with gas containing the ozone gas generated by the ozonizer 20; and a discharge passage L2 for discharging the ozone-containing liquid 70 produced by the gas-liquid mixer 10 via a discharge port 3. The suction port 4 is provided so as to face a discharge region R of the ozone-containing liquid 70 discharged from the discharge port 3 and the suction passage L3 sucks gas present in the discharge region R as the raw material gas via the suction port 4.

Description

  The present invention relates to an ozone-containing liquid generation unit that generates an ozone-containing liquid, a cleaning device including the ozone-containing liquid generation unit, and an ozone-containing liquid generation method.

  2. Description of the Related Art Conventionally, a cleaning method is known in which dissolved ozone water is used to cause ozone contained therein to act on bacteria, harmful substances, and the like to sterilize or inactivate the ozone. In general, as a generation method for generating dissolved ozone water, there are a method for dissolving ozone at a high concentration in water, a method for dissolving ozone in water by electrolysis in water, and the like.

  In recent years, a cleaning method has been proposed in which cleaning is performed using ozone gas-containing water in which ozone is contained in water in a gaseous state. If cleaning is performed using the ozone gas-containing water, the ozone in the gaseous state will directly act on bacteria, etc., so that ozone with a lower concentration is included in the water than when dissolved ozone water is used. Even in such a case, it is possible to obtain cleaning water with high cleaning power.

  As a method for generating ozone gas-containing water, for example, as disclosed in Japanese Patent Application Laid-Open No. 2011-173038 (Patent Document 1), a method of mixing ozone in water in a bubble state is common.

JP 2011-173038 A

  However, when any of the above-described dissolved ozone water and ozone gas-containing water (hereinafter referred to as ozone-containing water) is used as cleaning water, ozone gas is generated from the cleaning water, and the generated ozone gas is used. Person may inhale. Here, ozone gas is a substance that may be harmful to the human body, and also emits a unique odor called ozone odor, so it is important to take all possible measures to prevent users from inhaling it. become.

  Here, when the dissolved ozone water is used as the cleaning water, the ozone gas is generated as a result of volatilization of ozone from the cleaning water. On the other hand, when ozone-containing water is used as the washing water, ozone is present in the water in a gaseous state, so the bubbles trapped in the water move to the surface of the water and burst, causing the ozone gas to immediately go outside. As a result, ozone gas having a relatively high concentration is generated.

  In addition, when using either dissolved ozone water or ozone gas-containing water, in order to increase the cleaning power, if ozone is included in the cleaning water at a higher concentration, the ozone gas generated from the cleaning water The amount will also increase, and the above-mentioned problem will be particularly noticeable.

  For this reason, at present, the use of ozone-containing water as cleaning water is greatly limited in terms of application and the concentration of ozone to be contained.

  Therefore, the present invention has been made in view of the above-described problems, and it is possible to suppress a user from sucking ozone gas, and to provide an ozone-containing liquid generation unit that has been considered in terms of safety and this It is an object of the present invention to provide a cleaning device and an ozone-containing liquid generation method.

  An ozone-containing liquid generation unit according to the present invention includes an intake passage that takes in gas via oxygen as a raw material gas and oxygen generation means that generates ozone using the raw material gas drawn through the intake port. And ozone-containing liquid generating means for generating an ozone-containing liquid by containing ozone generated by the ozone generating means in the liquid, and the ozone-containing liquid generated by the ozone-containing liquid generating means via the discharge port. And a discharge passage for discharging. The intake port is provided so as to face a discharge region of the ozone-containing liquid discharged from the discharge port. The intake passage sucks gas existing in the discharge region as source gas through the intake port.

  Here, the ozone-containing liquid is a dissolved ozone liquid in a state in which ozone is dissolved in a solvent, an ozone gas-containing liquid in which ozone is contained in a liquid state in a gaseous state, ozone containing both dissolved ozone and gaseous ozone. Contains liquid. Moreover, as a solvent in which ozone is dissolved or a liquid in which ozone is contained in a gaseous state, water is typically exemplified, but the invention is not limited thereto.

  In the ozone-containing liquid generation unit according to the present invention, the intake passage includes a check valve that prevents a backflow of the raw material gas that is drawn into the intake port and introduced into the ozone generating means. It is preferable.

  In the ozone-containing liquid generation unit according to the present invention, it is preferable that the intake passage includes an intake flow rate adjusting means for adjusting the intake amount of the raw material gas sucked from the intake port.

  The ozone-containing liquid generation unit according to the present invention preferably further includes a lid that covers the discharge region, and in that case, the lid is provided with the discharge port and the intake port. It is preferable.

  In the ozone-containing liquid generating unit according to the present invention, it is preferable that the discharge passage includes gas-liquid separation means for temporarily storing the ozone-containing liquid and separating the ozone-containing liquid.

  In the ozone-containing liquid generating unit according to the present invention, it is preferable that the ozone-containing liquid generating means is constituted by a gas-liquid mixing means for containing ozone in the liquid using the venturi effect.

  The cleaning apparatus based on this invention is equipped with the ozone containing liquid production | generation unit based on this invention mentioned above.

  The ozone-containing liquid generation method according to the present invention generates a ozone-containing liquid by sucking a gas containing oxygen as a raw material gas, generating ozone using the sucked raw material gas, and containing the generated ozone in the liquid. In this method, a gas existing in a discharge region where the generated ozone-containing liquid is discharged is used as a raw material gas.

  ADVANTAGE OF THE INVENTION According to this invention, it is set as the ozone containing liquid production | generation unit which was able to suppress that a user suck | inhales ozone gas, and the safety | security aspect was considered, the washing | cleaning apparatus provided with the same, and an ozone containing liquid production | generation method Can do.

It is the schematic of the ozone containing liquid production | generation unit in Embodiment 1 of this invention. It is a schematic cross section of the gas-liquid mixer shown in FIG. In the ozone containing liquid production | generation unit shown in FIG. 1, it is the figure which represented typically a mode that an ozone containing liquid was discharged, and a mode that raw material gas was inhaled. It is the schematic of the ozone containing liquid production | generation unit in Embodiment 2 of this invention. It is the schematic of the ozone containing liquid production | generation unit in Embodiment 3 of this invention. It is the schematic of the ozone containing liquid production | generation unit in Embodiment 4 of this invention. It is the schematic of the kitchen sink as a washing | cleaning apparatus in Embodiment 5 of this invention. It is the schematic which shows the usage example in the case of wash | cleaning the drain ditch of the sink of a washroom using the washing | cleaning unit which consists of an ozone containing liquid production | generation unit in Embodiment 6 of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or common part in a figure, and the description is not repeated.

(Embodiment 1)
FIG. 1 is a schematic view of an ozone-containing liquid generation unit according to Embodiment 1 of the present invention, and FIG. 2 is a schematic cross-sectional view of the gas-liquid mixer shown in FIG. FIG. 3 is a diagram schematically showing how the ozone-containing liquid is discharged and how the raw material gas is sucked in the ozone-containing liquid generation unit shown in FIG. Hereinafter, the ozone-containing liquid generating unit 1A and the ozone-containing liquid generating method in the present embodiment will be described in detail with reference to FIGS.

  As shown in FIG. 1, the ozone-containing liquid generating unit 1A in the present embodiment includes a gas-liquid mixer 10 that is a gas-liquid mixing means as an ozone-containing liquid generating means, and an ozone generator 20 as an ozone generating means. The liquid supply passage L1, the discharge passage L2, the intake passage L3, and the ozone supply passage L4 are mainly provided.

  The liquid supply passage L1 has a liquid supply port 2 at one end, and the other end is connected to the gas-liquid mixer 10. The liquid supply port 2 provided at one end of the liquid supply path L1 is connected to an external liquid supply source, whereby the liquid supply path L1 receives supply of liquid from the outside. The liquid supply passage L1 that receives the supply of liquid through the liquid supply port 2 introduces the supplied liquid into the gas-liquid mixer 10 from the other end.

  The intake passage L3 has an intake port 4 at one end, and the other end is connected to the ozone generator 20. From the intake port 4 provided at one end of the intake passage L3, a gas containing oxygen serving as a raw material gas for generating ozone gas is sucked, whereby the intake passage L3 is supplied with the raw material gas from the outside. The intake passage L3 that receives the supply of the raw material gas through the intake port 4 introduces the sucked raw material gas into the ozone generator 20 from the other end.

  One end of the ozone supply passage L4 is connected to the ozone generator 20, and the other end is connected to the gas-liquid mixer 10. A gas containing ozone gas generated in the ozone generator 20 is introduced from the one end of the ozone supply passage L4, whereby the ozone supply passage L4 receives supply of the gas. The ozone supply passage L4 that has been supplied with a gas containing ozone gas through the one end introduces the supplied gas into the gas-liquid mixer 10 from the other end.

  One end of the discharge passage L2 is connected to the gas-liquid mixer 10 and the discharge port 3 is provided at the other end. From the one end of the discharge passage L2, the ozone-containing liquid generated in the gas-liquid mixer 10 is introduced, whereby the discharge passage L2 receives supply of the ozone-containing liquid. The discharge passage L2 that receives the supply of the ozone-containing liquid through the one end discharges the supplied ozone-containing liquid from the discharge port 3 to the outside. In FIG. 1, the ozone-containing liquid discharged from the discharge port 3 is indicated by reference numeral 70.

  The ozone generator 20 is for generating ozone gas from a gas containing oxygen as a raw material gas introduced through the intake passage L3. As the ozone generator 20, one that generates ozone gas by using any one of a photochemical reaction method, a radiation irradiation method, and a discharge method can be used. Particularly preferably, one that uses a discharge method is selected and used. Is done. There are mainly a discharge method using a silent discharge method and a corona discharge method, and any of them can be used. In the present embodiment, a silent discharge type is used as the ozone generator 20.

  The gas-liquid mixer 10 is for generating the ozone-containing liquid 70 from the liquid introduced through the liquid supply passage L1 and the gas containing ozone gas introduced through the ozone supply passage L4. Here, in the present embodiment, as the gas-liquid mixer 10, a venturi-type gas-liquid mixing means that can contain a gas containing ozone gas in the liquid by using the Venturi effect is adopted. .

  As shown in FIG. 2, the gas-liquid mixer 10 includes a large-diameter channel portion 11 into which liquid is introduced, and a liquid that is located downstream of the large-diameter channel portion 11 and flows through the large-diameter channel portion 11. A small-diameter channel portion 12 to be introduced, and a conical channel portion 13 including a frustoconical channel that is located downstream of the small-diameter channel portion 12 and into which the liquid flowing through the small-diameter channel portion 12 is introduced. And have. The gas-liquid mixer 10 has a gas introduction passage portion 14 into which gas is introduced, and the gas introduction passage portion 14 communicates with the small-diameter passage portion 12 described above.

  The other end of the above-described liquid supply passage L1 is connected to the large-diameter passage portion 11, and the other end of the above-described ozone supply passage L4 is connected to the gas introduction passage portion 14. Further, the one end of the discharge passage L2 described above is connected to the conical channel portion 13.

  When the liquid is introduced into the large-diameter channel portion 11 from the liquid supply passage L1, the liquid flowing through the large-diameter channel portion 11 is introduced into the small-diameter channel portion 12 having an inner diameter smaller than that of the large-diameter channel portion 11. . Therefore, as is known from Bernoulli's theorem, in the small-diameter channel portion 12, the flow velocity of the liquid increases and the static pressure decreases.

  As a result, the static pressure of the liquid flowing through the small-diameter channel portion 12 becomes a negative pressure, and gas containing ozone gas is sucked into the small-diameter channel portion 12 from the ozone supply passage L4 via the gas introduction passage portion 14. The Therefore, in the small-diameter channel portion 12, a gas containing the sucked ozone gas is mixed into the liquid, and the mixed ozone gas is dissolved in the liquid. Thereby, the ozone-containing liquid 70 is generated in the small-diameter channel portion 12.

  In the gas-liquid mixer 10, it is preferable that the mixed ozone gas is completely dissolved in the liquid. However, due to the occurrence of a cavitation phenomenon, etc., the ozone gas partially exists in the liquid state. May be.

  The generated ozone-containing liquid 70 is introduced into the conical channel portion 13, and then discharged from the conical channel portion 13 and introduced into the discharge passage L2.

  As described above, by using the gas-liquid mixer 10 which is a venturi-type gas-liquid mixing means, the gas including the ozone gas is self-sucked and mixed into the liquid by the action of the gas-liquid mixer 10. The power for mixing the gas into the liquid becomes unnecessary, so that not only the running cost can be reduced, but also the manufacturing cost can be reduced with the simplification of the configuration.

  As shown in FIG. 1, in the ozone-containing liquid generating unit 1A in the present embodiment, the above-described gas-liquid mixer is supplied by supplying liquid to the gas-liquid mixer 10 via the liquid supply passage L1. A gas containing oxygen as a raw material gas is introduced into the intake passage L3 through the intake port 4 with the self-priming action of 10, and this is introduced into the ozone generator 20 to generate a gas containing ozone gas. A gas containing the generated ozone gas is supplied to the gas-liquid mixer 10 through the ozone supply passage L4.

  The supplied gas containing the ozone gas is mixed in the liquid in the gas-liquid mixer 10, thereby generating the ozone-containing liquid 70 in the gas-liquid mixer 10, and the generated ozone-containing liquid 70 is introduced into the discharge passage L <b> 2. Then, it is discharged toward the outside through the discharge port 3.

  Here, as shown in FIGS. 1 and 3, in the ozone-containing liquid generation unit 1 </ b> A in the present embodiment, the intake port 4 is in the discharge region R of the ozone-containing liquid 70 discharged from the discharge port 3. It is provided to face. The discharge region R means a spatial region in which the ozone-containing liquid 70 discharged from the discharge port 3 reaches, and normally, the cleaning tank 5 made of a container or the like so as to face the discharge port 3. Therefore, the space inside the cleaning tank 5 corresponds to the discharge region R.

  That is, in the ozone-containing liquid generation method in the present embodiment, a gas containing oxygen is sucked as a raw material gas, ozone gas is generated using the sucked raw material gas, and the generated ozone gas is contained in the liquid. When the ozone-containing liquid 70 is generated, the gas existing in the discharge region R from which the generated ozone-containing liquid 70 is discharged is used as the raw material gas.

  Thereby, the intake port 4 sucks in the gas existing in the discharge region R. Therefore, the raw material gas sucked through the intake port 4 becomes a gas containing oxygen existing in the discharge region R at the start of operation, and after a predetermined time has elapsed from the start of operation, as shown in FIG. The gas containing the oxygen gas in the discharge region R and the ozone gas 80 generated from the ozone-containing liquid 70 is obtained. That is, in the ozone-containing liquid generating unit 1A in the present embodiment, the ozone gas 80 generated from the discharged ozone-containing liquid 70 is immediately sucked and collected through the air inlet 4 before diffusing outside the cleaning tank 5. Will be.

  Therefore, it is possible to suppress the ozone gas 80 from leaking out of the space inside the cleaning tank 5 that is the discharge region R, and it is possible to prevent the user from sucking the ozone gas 80 through. Therefore, the safety is enhanced, and it is possible to contain a high concentration of ozone in the liquid, and the ozone-containing liquid 70 having higher detergency can be generated and used. Furthermore, since the ozone gas 80 is collected by utilizing the self-priming action of the gas-liquid mixer 10 when the ozone-containing liquid 70 is generated, it is not necessary to provide a separate ventilation facility or the like, and it is inexpensive and simple. The ozone-containing liquid generation unit 1A can be manufactured.

  Here, in the ozone-containing liquid generation unit 1A in the present embodiment, a gas flow restriction unit 30 is further provided on the intake passage L3. The gas flow restriction unit 30 is preferably constituted by a check valve, for example. The check valve is a flow restriction means for restricting the flow direction of the fluid in one direction. When the pressure on the intake port 4 side of the intake passage L3 is higher than the pressure on the ozone generator 20, the check valve opens. Close the valve.

  By providing the check valve, the intake passage L3 circulates a gas containing oxygen as a source gas only in the direction from the intake port 4 side toward the ozone generator 20 side. Therefore, even if the pressure on the ozone generator 20 side of the intake passage L3 rises higher than the pressure on the intake port 4, it is possible to prevent ozone gas from flowing back and being discharged from the intake port 4 to the outside. It becomes possible to improve safety.

  Further, the gas flow restriction unit 30 may be configured with a flow rate control valve capable of controlling the flow rate of the fluid. The flow control valve is a flow restricting means capable of variably restricting the flow rate of fluid. For example, the flow control valve includes a valve body that can close the intake passage L3, and adjusts the valve opening amount of the valve body from the intake port 4 side. The flow rate of gas toward the ozone generator 20 side can be adjusted.

  By providing the flow rate control valve, the flow rate of the gas containing oxygen as the source gas flowing through the intake passage L3 can be adjusted, so the supply amount of the source gas to the ozone generator 20 can be controlled. Here, the supply amount of the raw material gas to the ozone generator 20 has a correlation with the amount of ozone gas generated in the ozone generator 20, and therefore affects the ozone concentration of the ozone-containing liquid 70 generated in the gas-liquid mixer 10. To do. Therefore, by adjusting the flow rate of the raw material gas, the ozone concentration of the ozone-containing liquid 70 can be controlled, and the ozone-containing liquid 70 having a desired ozone concentration can be generated.

  In addition, when the flow control valve is provided, it is possible to cut off the flow itself of the gas containing oxygen as the raw material gas in the intake passage L3, so that the flow of the raw material gas is cut off. Thus, only the liquid not containing ozone gas can be discharged from the discharge port 3.

  As described above, by using the ozone-containing liquid generation unit 1A in the present embodiment and adopting the ozone-containing liquid generation method in the present embodiment, the user sucks the ozone gas 80. Therefore, the ozone-containing liquid generating unit and the ozone-containing liquid generating method can be provided in consideration of safety.

  In the present embodiment described above, the gas-liquid mixer 10 which is a venturi-type gas-liquid mixing means is used as the ozone-containing liquid generating means. The case where the raw material gas is supplied to the liquid mixer 10 has been illustrated, but it is naturally possible to use a gas-liquid mixing means having no self-priming action as the ozone-containing liquid generating means. In that case, a means for forcibly pumping a gas such as a pump may be provided in either the intake passage L3 or the ozone supply passage L4.

  In addition, the portion where the discharge port 3 of the discharge passage L2 is provided is not limited in shape, size, or the like as long as the ozone-containing liquid 70 can be discharged. Therefore, the said part may be comprised by the thing of what kind of structures, such as a tube, piping, and a nozzle. For example, when the portion is constituted by a nozzle, the ozone-containing liquid 70 can be sprayed over a wide range with a small discharge amount.

(Embodiment 2)
FIG. 4 is a schematic diagram of an ozone-containing liquid generation unit according to Embodiment 2 of the present invention. Hereinafter, with reference to this FIG. 4, it demonstrates in detail about the ozone containing liquid production | generation unit 1B in this Embodiment.

  As shown in FIG. 4, the ozone-containing liquid generating unit 1B in the present embodiment further includes a gas-liquid separator 40 as a gas-liquid separating means on the discharge passage L2, and the above-described implementation of the present invention. This is different from the ozone-containing liquid generating unit 1A in the first embodiment. The gas-liquid separator 40 temporarily stores the ozone-containing liquid 70 and gas-liquid separates it, and includes a container that can store liquid and gas. In the gas-liquid separator 40, residual gas containing ozone gas that has not been dissolved in the liquid in the gas-liquid mixer 10 is separated from the liquid.

  In the gas-liquid separator 40, the residual gas floats on the liquid surface based on the specific gravity difference, is separated from the liquid, and is stored above the gas-liquid separator 40. Therefore, only the liquid not containing residual gas is stored below the gas-liquid separator 40, and only the liquid is discharged from the gas-liquid separator 40 toward the discharge port 3. Become.

  An exhaust passage L5 is connected above the gas-liquid separator 40. The exhaust passage L5 is for exhausting residual gas including ozone gas stored in the gas-liquid separator 40 to the outside. Here, the exhaust port provided in the container of the gas-liquid separator 40 connected to the exhaust passage L5 is provided in the container of the gas-liquid separator 40 connected to the discharge passage L2 located on the discharge port 3 side. It is arranged at a higher position in the vertical direction than the drainage port. Thereby, the residual gas containing the ozone gas stored in the gas-liquid separator 40 is discharged outside through the exhaust passage L5.

  An ozone filter 41 is disposed on the exhaust passage L5. The ozone filter 41 is decomposed by reducing the ozone gas contained in the passing residual gas, and an ozone decomposition catalyst adhered to a base material such as paper or aluminum configured in a lattice shape can be used. By providing the ozone filter 41, the ozone gas contained in the residual gas discharged from the gas-liquid separator 40 can be removed, and the exhaust is safely performed.

  By using the ozone-containing liquid generation unit 1B in the present embodiment described above, the gas-liquid separator 40 collects residual gas containing ozone gas that has not been dissolved in the liquid in the gas-liquid mixer 10, and this is achieved. Since the discharge from the discharge port 3 can be prevented, combined with the recovery of the ozone gas 80 using the intake passage L3 described above, the ozone gas 80 leaks out from the space inside the cleaning tank 5 which is the discharge region R. This can be more effectively suppressed. Therefore, by using the ozone-containing liquid generation unit 1B in the present embodiment, in addition to the effects described in the first embodiment of the present invention, an effect that safety can be further improved is obtained. become.

  In the gas-liquid separator 40, it is preferable that the residual gas containing ozone gas that has not been dissolved in the liquid is completely separated from the liquid, but for the gas containing ozone gas contained in the liquid as fine bubbles, It is not necessarily required to separate all of this from the liquid, and it may be separated from the liquid only with respect to the gas containing ozone gas contained in the liquid as relatively large bubbles without being sufficiently miniaturized.

  Further, in the present embodiment described above, the case where the gas-liquid separator 40 provided with the container is provided as the gas-liquid separating means is exemplified, but any gas-liquid separator capable of gas-liquid separation can be used. It can be used as a liquid separation means. For example, a part of the discharge passage L2 can be expanded to be a gas-liquid separation means.

(Embodiment 3)
FIG. 5 is a schematic diagram of an ozone-containing liquid generation unit according to Embodiment 3 of the present invention. Hereinafter, with reference to FIG. 5, the ozone-containing liquid generation unit 1C in the present embodiment will be described in detail.

  As shown in FIG. 5, the ozone-containing liquid generation unit 1 </ b> C in the present embodiment has been described above in that it further includes a lid 6 that covers the discharge region R of the ozone-containing liquid 70 discharged from the discharge port 3. This is different from the ozone-containing liquid generation unit 1A in the first embodiment of the present invention. The lid 6 has a shape that closes the opening of the cleaning tank 5, and preferably seals the space inside the cleaning tank 5 from the outside. The lid body 6 is provided with the discharge port 3 of the discharge passage L2 and the intake port 4 of the intake passage L3.

  As a result, the discharge region R of the ozone-containing liquid 70 discharged from the discharge port 3 is located in a space defined by the cleaning tank 5 and the lid body 6, and the intake port 4 faces the space. become. Therefore, the discharge region R is covered with the lid 6 so that leakage of ozone gas generated in the space to the outside can be prevented and the ozone gas can be reliably sucked through the intake port 4. Become.

  Therefore, by using the ozone-containing liquid generation unit 1C in the present embodiment, in addition to the effects described in the first embodiment of the present invention, an effect that safety can be further improved is obtained. become.

  The shape of the lid 6 is not limited to a flat plate shape as shown in the figure, and may be a curved plate shape or a cup as long as the discharge region R can be separated from the external space. It may be a shape.

(Embodiment 4)
FIG. 6 is a schematic diagram of an ozone-containing liquid generation unit according to Embodiment 4 of the present invention. Hereinafter, the ozone-containing liquid generation unit 1D in the present embodiment will be described in detail with reference to FIG.

  As shown in FIG. 6, the ozone-containing liquid generation unit 1D in the present embodiment further includes flow rate sensors 7 and 8 on the liquid supply passage L1 and the discharge passage L2, and the lid body 6 has an ozone concentration. The book described above in that it further includes a sensor 9 and a controller 50 that performs various controls based on information detected by the flow rate sensors 7 and 8 and the ozone concentration sensor 9. This is different from the ozone-containing liquid generation unit 1C in the third embodiment of the invention. Here, in the ozone-containing liquid generation unit 1D in the present embodiment, the gas flow restriction unit 30 includes an electromagnetic flow control valve that is a kind of the flow control valve described above, and the control unit described above. 50 also controls the operation of an electromagnetic flow control valve as the gas flow restriction unit 30.

  The flow rate sensor 7 detects the flow rate of the liquid passing through the liquid supply passage L <b> 1, and inputs information on the detected flow rate to the control unit 50. The flow rate sensor 8 detects the flow rate of the ozone-containing liquid 70 that passes through the discharge passage L <b> 2, and inputs information on the detected flow rate to the control unit 50. The ozone concentration sensor 9 detects the ozone concentration in the space defined by the cleaning tank 5 and the lid 6 that are the discharge region R of the ozone-containing liquid 70 discharged from the discharge port 3. Is input to the control unit 50.

  The control unit 50 compares the flow rate information input from the flow rate sensors 7 and 8, thereby containing the ozone discharged from the gas-liquid mixer 10 with respect to the amount of liquid supplied to the gas-liquid mixer 10. When it is determined that the discharged amount of the liquid 70 is remarkably small, the abnormality is notified to the user using notifying means such as a display, a warning light, and a buzzer (not shown).

  With this configuration, ozone gas generated in the ozone generator 20 leaks to the outside together with at least one of the liquid and the generated ozone-containing liquid 70 due to some damage or the like occurring in the ozone-containing liquid generation unit 1D. When there is a possibility of being present, this can be notified to the user. Therefore, the user can stop the use of the ozone-containing liquid generation unit 1D by stopping the supply of the liquid from the outside in response to this. Instead of the above or in addition to the above, when the control unit 50 determines the abnormality, it controls the operation of the ozone generator 20 so as to immediately stop the driving of the ozone generator 20. Also good.

  In addition, when the control unit 50 determines that the concentration in the space defined by the cleaning tank 5 and the lid body 6 is equal to or higher than a predetermined concentration based on the ozone concentration information input from the ozone concentration sensor 9, The user is notified of the abnormality using notifying means such as a display, warning light, buzzer or the like (not shown).

  By configuring in this way, if there is a possibility that ozone gas having a higher concentration than expected is generated due to some damage or the like in the ozone-containing liquid generation unit 1D, this can be notified to the user. It becomes possible. Therefore, the user can stop the use of the ozone-containing liquid generation unit 1D by stopping the supply of the liquid from the outside in response to this. Instead of the above or in addition to the above, when the control unit 50 determines the abnormality, it controls the operation of the ozone generator 20 so as to immediately stop the driving of the ozone generator 20. Also good.

  Thus, in the ozone containing liquid production | generation unit 1D in this Embodiment, the protection circuit as a safety device is incorporated by employ | adopting the said structure. Therefore, by using the ozone-containing liquid generation unit 1D in the present embodiment, in addition to the effects described in the third embodiment of the present invention described above, there is an effect that the safety can be further improved. It is done.

  As shown in FIG. 6, in the ozone-containing liquid generation unit 1 </ b> D in the above-described embodiment, the control unit 50 is based on the ozone concentration information input from the ozone concentration sensor 9, and the gas flow restriction unit 30. The flow rate of the raw material gas sucked from the intake port 4 may be variably adjusted by controlling the operation of the flow rate control valve. With such a configuration, it is possible to prevent the concentration in the space defined by the cleaning tank 5 and the lid body 6 from exceeding a predetermined concentration, and even in that case, further safety is achieved. Can be secured.

  In the case where the ozone-containing liquid generation unit 1D in the present embodiment described above is configured to be integrated with a cleaning apparatus including a liquid supply source as in the fifth embodiment of the present invention described later, the control unit 50 When the abnormality is determined, the operation of the liquid supply source may be controlled so that the liquid supply from the liquid supply source is immediately stopped. With such a configuration, further improvement in safety can be achieved.

  The ozone-containing liquid generation units 1A to 1D in Embodiments 1 to 4 of the present invention described above can be detachably connected to other equipment such as liquid supply equipment by being configured as a washing unit alone. It may be configured to function as a cleaning device by being connected to the other equipment and used, or these may be integrated in advance with other equipment such as a liquid supply equipment. Thus, the cleaning device may be configured.

  Embodiment 5 of the present invention shown below is a case where the ozone-containing liquid generating unit 1A in Embodiment 1 of the present invention described above is incorporated in advance in a kitchen sink as a cleaning device, as the latter configuration among them. A configuration example is shown, and in the sixth embodiment of the present invention described below, the ozone-containing liquid generation unit 1C according to the third embodiment of the present invention described above is used as a sink in the washroom as the former configuration. The example of use in the case of using for washing | cleaning of a drain ditch is shown.

(Embodiment 5)
FIG. 7 is a schematic view of a kitchen sink as a cleaning device in Embodiment 5 of the present invention. As shown in FIG. 7, the sink 100 includes a sink 120, a currant 130, a base plate 110 on which the sink 120 and the currant 130 are provided, a hot water pipe 140 as a liquid supply source, a water stop cock 150, and the above-mentioned. The ozone-containing liquid generation unit 1A according to Embodiment 1 of the present invention is provided. Here, the ozone-containing liquid generation unit 1A is incorporated in the sink 100 in advance.

  The sink 120 corresponds to the cleaning tank 5, and a drain pipe 121 is connected to the bottom surface thereof. The currant 130 is for discharging hot water or water to the sink 120. The hot water pipe 140 is for supplying hot water or water to the caran 130, and the stop cock 150 is for supplying hot water or water from the hot water pipe 140 to the caran 130 and stopping it.

  The liquid supply passage L1 of the ozone-containing liquid generation unit 1A is connected to the hot water pipe 140 by connecting the liquid supply port 2 to a pipe located on the downstream side of the stop cock 150. On the other hand, the discharge passage L <b> 2 of the ozone-containing liquid generation unit 1 </ b> A is connected to the currant 130, and the tip of the nozzle portion for discharging hot water or water of the currant 130 corresponds to the discharge port 3.

  The intake passage L3 of the ozone-containing liquid generation unit 1A is connected to an opening provided on the wall surface of the sink 120, and the opening corresponds to the intake port 4. In the present embodiment, the gas flow restriction unit 30 is configured by a flow control valve, and the flow control valve is installed on the top of the base plate 110 so that the flow control can be performed manually. ing.

  In the sink 100 in the present embodiment, hot water or water as a liquid is supplied from the hot water pipe 140 to the ozone-containing liquid generation unit 1A, and the ozone-containing liquid generation unit 1A is supplied from the intake port 4 provided in the sink 120. On the other hand, air as raw material gas or air containing ozone gas is supplied. As a result, ozone gas is generated in the ozone generator 20 and is introduced into the gas-liquid mixer 10 to generate ozone-containing water as the ozone-containing liquid 70, and the generated ozone-containing water is discharged from the curan 130. The liquid is discharged from the outlet 3 toward the sink 120.

  In this way, by using the sink 100 in which the ozone-containing liquid generation unit 1A is incorporated in advance, it is possible to suppress the ozone gas from leaking from the space inside the sink 120, which is the discharge region R, to the user. Inhalation of ozone gas can be suppressed. Therefore, it is possible to suppress an increase in the concentration of ozone gas in the sink 100, and it is possible to use ozone-containing water as the ozone-containing liquid 70 with confidence.

(Embodiment 6)
FIG. 8 is a schematic diagram showing an example of use when the drainage groove of the sink in the washroom is cleaned using the cleaning unit including the ozone-containing liquid generation unit according to Embodiment 6 of the present invention. As shown in FIG. 8, the drainage groove 300 includes a container-like drainage port part 320 having a space inside, and a drainage pipe 330 connected to the bottom surface of the drainage part 320. Is provided with a drain trap part 340 that serves as a liquid storage part by meandering a part of the drain pipe 330. On the other hand, the water supply unit 200 includes a hot water pipe 240 as a liquid supply source, a water stop cock 250, and a faucet 260. Here, the water supply part 200 is a normal water supply equipment provided in a sink.

  When cleaning the drain groove 300 of the sink using the cleaning unit including the ozone-containing liquid generation unit 1C in the present embodiment, the liquid supply port 2 of the ozone-containing liquid generation unit 1C is connected to the faucet 260 of the water supply unit 200. At the same time, the lid 6 provided with the discharge port 3 and the intake port 4 of the ozone-containing liquid generation unit 1C is attached to the drainage groove 300 so as to close the space inside the drainage port 320.

  In this state, the faucet 260 is twisted to open the stop cock 250, so that hot water or water as a liquid is supplied from the hot water pipe 240 to the ozone-containing liquid generating unit 1C. Air inside the opening 320 or air containing ozone gas is supplied as raw material gas from the intake port 4 to the ozone-containing liquid generating unit 1C. Thereby, ozone gas is generated in the ozone generator 20, and this is introduced into the gas-liquid mixer 10, thereby generating ozone-containing water as the ozone-containing liquid 70, and the generated ozone-containing water is discharged from the discharge port 3. It is discharged toward the drain outlet 320.

  As described above, by cleaning the drain groove 300 using the cleaning unit including the ozone-containing liquid generating unit 1C in the present embodiment, ozone gas is discharged from the space inside the drain port 320, which is the discharge region R, to the outside. Leakage can be suppressed, and it is possible to prevent the user from sucking ozone gas. Therefore, it is possible to suppress an increase in the concentration of ozone gas in the vicinity of the drainage groove 300 during cleaning of the drainage groove 300, and it is possible to use the ozone-containing water as the ozone-containing liquid 70 with confidence.

  In addition, by washing the drainage groove 300 using the cleaning unit including the ozone-containing liquid generation unit 1C provided with the lid 6 as described above, the stored water 341 stored in the drain trap 340, the lid 6 and As a result, the space inside the drainage groove 300 is sealed. Therefore, it is possible to use ozone-containing water containing high-concentration ozone as the cleaning water, and the drainage groove 300 can be efficiently cleaned with high cleaning power.

  In Embodiment 5 of the present invention described above, the kitchen sink is illustrated as an example of the cleaning device in which the ozone-containing liquid generation unit is incorporated. However, even if the ozone-containing liquid generation unit is incorporated in another cleaning device. Good. Here, as other cleaning devices, it is used for washing water facilities other than kitchen sinks, such as bathrooms, toilets, washrooms, pipes attached to dwelling units and factories, or mechanical equipment installed in factories. Cleaning equipment, parts cleaning equipment as production equipment installed in factories, etc., cleaning equipment for various products and products including foodstuffs, various cleaning equipment used in medical facilities, hand washers and face washers Examples include various beauty and health appliances, various cleaning devices for the purpose of sterilization, deodorization, bleaching and the like that are symmetrical about the floor or wall surface of a building. Thus, the present invention can be applied to various types of cleaning apparatuses without departing from the spirit of the present invention.

  Further, in the above-described sixth embodiment of the present invention, the explanation has been given by exemplifying the drainage groove of the sink in the washroom as an object to which the cleaning unit composed of the ozone-containing liquid generation unit is used. It may be used for the cleaning of the part. Here, other locations include drainage channels other than sinks in kitchens, bathrooms, toilets, etc., other pipes attached to dwelling units and factories, machinery installed in factories, etc. And the like provided in the pipe.

  Thus, the above-described embodiments disclosed herein are illustrative in all respects and are not restrictive. The technical scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  1A to 1D Ozone-containing liquid generation unit, 2 liquid supply port, 3 discharge port, 4 air intake port, 5 washing tank, 6 lid, 7, 8 flow rate sensor, 9 ozone concentration sensor, 10 gas-liquid mixer, 11 large diameter flow Road part, 12 Small diameter flow path part, 13 Conical flow path part, 14 Gas introduction path part, 20 Ozone generator, 30 Gas flow restriction part, 40 Gas-liquid separator, 41 Ozone filter, 50 Control part, 70 Ozone containing Liquid, 80 Ozone gas, 100 Sink, 110 Base plate, 120 Sink, 121 Drain pipe, 130 Karan, 140 Hot water pipe, 150 Water stop cock, 200 Water supply unit, 240 Hot water pipe, 250 Water stop cock, 260 Faucet, 300 Drain , 320 Drain port, 330 Drain pipe, 340 Drain trap, 341 Reservoir, L1 liquid supply passage, L2 discharge passage, L3 intake passage, L4 ozone Feeding passage, L5 exhaust passage, R ejection region.

Claims (8)

An intake passage for inhaling gas containing oxygen as a source gas through the intake port;
Ozone generating means for generating ozone using the raw material gas sucked through the intake port;
Ozone-containing liquid generating means for generating an ozone-containing liquid by containing ozone generated by the ozone generating means in a liquid;
A discharge passage for discharging the ozone-containing liquid generated by the ozone-containing liquid generating means through a discharge port;
The intake port is provided so as to face a discharge region of the ozone-containing liquid discharged from the discharge port,
The ozone-containing liquid generation unit, wherein the intake passage sucks in the gas existing in the discharge region as a raw material gas through the intake port.   2. The ozone-containing liquid generation unit according to claim 1, wherein the intake passage includes a check valve that prevents a backflow of a raw material gas that is sucked at the intake port and introduced into the ozone generation unit.   3. The ozone-containing liquid generation unit according to claim 1, wherein the intake passage includes an intake flow rate adjusting unit that adjusts an intake amount of a source gas sucked from the intake port. A lid that covers the discharge area;
The ozone-containing liquid production | generation unit in any one of Claim 1 to 3 with which the said discharge port and the said inlet port are provided in the said cover body.   The ozone-containing liquid production | generation unit in any one of Claim 1 to 4 in which the said discharge passage contains the gas-liquid separation means which stores an ozone-containing liquid temporarily and gas-liquid-separates this.   The ozone-containing liquid production | generation unit in any one of Claim 1 to 5 comprised with the gas-liquid mixing means in which the said ozone-containing liquid production | generation means contains ozone in a liquid using a venturi effect.   The cleaning apparatus provided with the ozone containing liquid production | generation unit in any one of Claim 1 to 6. A method for producing an ozone-containing liquid that inhales a gas containing oxygen as a raw material gas, generates ozone using the sucked raw material gas, and generates an ozone-containing liquid by containing the generated ozone in a liquid,
An ozone-containing liquid generation method using a gas existing in a discharge region where a generated ozone-containing liquid is discharged as a source gas.

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