JP2013203583A - Apparatus for generating liquid containing ozone, and cleaning apparatus including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safely-usable apparatus for generating a liquid containing ozone, having no restriction on an installation position, layout of components or the like.SOLUTION: An apparatus 1 for generating a liquid containing ozone includes: an ozone generator 10 for generating ozone; a gas-liquid mixer 20 for generating ozone water 100 by allowing water to include generated ozone; a first gas introduction path L4 through which raw material gas is introduced into the ozone generator 10; a liquid introduction path L1 through which water is introduced into the gas-liquid mixer 20; a gas-liquid separator 30 for separating generated ozone water 100 into gas and liquid; a gas refluxing path L6 through which residual gas separated from the ozone water 100 is refluxed into the first gas introduction path L4; and a derivation path L3 for the liquid containing ozone through which the ozone water 100 after being subjected to gas-liquid separation is derived to the outside. The derivation path L3 for the liquid containing ozone has a high part 40 positioned on a higher place than a connection port 3 connected to the gas-liquid separator 30 and a discharge port 4 for discharging the ozone water 100 toward the outside, and a second gas introduction path L7 for introducing the outside air therethrough is connected to the high part 40.

Description

  The present invention relates to an ozone-containing liquid generating device that generates an ozone-containing liquid and a cleaning device including the ozone-containing liquid generating device.

  The ozone-containing liquid generating device includes an ozone generator and a gas-liquid mixer, and generates an ozone-containing liquid by mixing ozone gas generated by the ozone generator with a liquid such as water in the gas-liquid mixer. It is. The generated ozone-containing liquid is widely used for cleaning applications such as sterilization and inactivation of harmful substances.

  Usually, the ozone-containing liquid generating apparatus is provided with a gas-liquid separator that gas-liquid separates the generated ozone-containing liquid. The gas-liquid separator is for separating and removing residual gas containing ozone gas, which could not be dissolved in the liquid in the gas-liquid mixer, from the ozone-containing liquid. The ozone-containing liquid generating apparatus provided with the gas-liquid separator is roughly classified into a so-called non-circulation type and a so-called circulation type.

  The non-circular ozone-containing liquid generator temporarily stores the residual gas separated from the ozone-containing liquid in the gas-liquid separator in a storage tank or the like, and decomposes the ozone gas contained in the residual gas. Then, the ozone concentration is lowered to such an extent that the human body is not affected at least, and then it is exhausted to the outside.

  On the other hand, the circulation type ozone-containing liquid generator recovers the residual gas separated from the ozone-containing liquid in the gas-liquid separator by connecting the gas-liquid separator and the ozone generator through a gas reflux path. This is again configured to be supplied as a raw material gas to the ozone generator. As a document disclosing the circulation type ozone-containing liquid generating apparatus, there is, for example, Japanese Patent Laid-Open No. 2-207892 (Patent Document 1).

  This circulation type ozone-containing liquid generation device not only has the advantage that a mechanism for decomposing ozone gas is unnecessary, but also recycles ozone gas. Utilization can increase the utilization efficiency of ozone gas or increase the ozone concentration in the generated ozone-containing liquid, so that the advantage of improving the generation efficiency of the ozone-containing liquid can be obtained.

Japanese Patent Laid-Open No. 2-207892

  However, in the circulation type ozone-containing liquid generating device described above, the position where the discharge port for discharging the generated ozone-containing liquid to the outside is lower than the liquid level of the ozone-containing liquid stored in the gas-liquid separator In the state where the ozone-containing liquid generation operation is stopped, there is a problem that the ozone-containing liquid stored in the gas-liquid separator is discharged to the outside through the discharge port. As a result, there was a concern in terms of safety that even residual gas including ozone gas stored in the gas-liquid separator leaks to the outside through the discharge port.

  This is because the gas-liquid separator communicates with the gas introduction path for introducing the raw material gas into the ozone generator through the gas reflux path described above, and the generation operation of the ozone-containing liquid is stopped. In addition, since the gas-liquid separator communicates with the outside via the gas introduction path and the gas reflux path described above, the raw material gas is introduced into the gas-liquid separator, so that the gas-liquid separator is This is because the ozone-containing liquid is moved toward the discharge port by the head pressure of the stored ozone-containing liquid.

  In order to prevent such a problem from occurring, it is necessary to install the discharge port so that it is always located above the liquid level of the ozone-containing liquid stored in the gas-liquid separator. In such a configuration, the installation position of the ozone-containing liquid generating device, the layout of its component parts, and the like are greatly limited, which involves many restrictions.

  Therefore, the present invention has been made in view of the above-described problems, and includes an ozone-containing liquid generation device that can be safely used without any restrictions on the installation position and layout of components, and the like. An object is to provide a cleaning device.

  An ozone-containing liquid generating apparatus according to the present invention generates an ozone-containing liquid by containing ozone generating means for generating ozone using a gas containing oxygen and ozone generated by the ozone generating means. An ozone-containing liquid generating means; a first gas introducing path for introducing a gas containing oxygen into the ozone generating means; a liquid introducing path for introducing a liquid into the ozone-containing liquid generating means; and the ozone-containing liquid generating means. Gas-liquid separation means for temporarily storing the generated ozone-containing liquid and gas-liquid separation of the ozone-containing liquid; and gas containing ozone separated from the ozone-containing liquid by the gas-liquid separation means to the first gas introduction path A gas reflux path for refluxing and an ozone-containing liquid lead-out path for leading out the ozone-containing liquid after the gas-liquid separation by the gas-liquid separation means are provided. The ozone-containing liquid lead-out path is perpendicular to the connection port and the discharge port at a midway position between the connection port connected to the gas-liquid separation means and the discharge port for discharging the ozone-containing liquid toward the outside. It has a high part located above. Here, the ozone containing liquid production | generation apparatus based on this invention is further provided with the 2nd gas introduction path which introduces gas toward the said high location part from the exterior.

  In the ozone-containing liquid generating apparatus according to the present invention, the gas and the liquid that the second gas introduction path is located in the ozone-containing liquid lead-out path leaks to the outside through the second gas introduction path. It is preferable to include a check valve that prevents this.

  In the ozone-containing liquid generating apparatus according to the present invention, the opening pressure of the check valve is provided with a position where the second gas introduction path is connected to the ozone-containing liquid lead-out path and the discharge port. It is preferably lower than the head pressure of the ozone-containing liquid that is generated based on the position difference in the vertical direction with respect to the position.

  In the ozone-containing liquid generating apparatus 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 a liquid using the venturi effect.

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

  ADVANTAGE OF THE INVENTION According to this invention, restrictions, such as an installation position and a layout of a component, do not arise, but it can be set as the ozone containing liquid production | generation apparatus which can be used safely, and a washing | cleaning apparatus provided with the same.

It is the schematic of the ozone containing liquid production | generation apparatus in embodiment of this invention. It is a schematic cross section of the gas-liquid mixer shown in FIG. It is a principal part expanded sectional view which shows the state which stopped the production | generation operation | movement of ozone water in the ozone containing liquid production | generation apparatus in embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the embodiment shown below, it is possible to attach it as a cleaning unit to a normal water supply facility as a unit, thereby generating ozone-containing liquid that can generate ozone water as an ozone-containing liquid. A case where the present invention is applied to an apparatus will be described as an example.

  FIG. 1 is a schematic view of an ozone-containing liquid generating apparatus according to an embodiment of the present invention, and FIG. 2 is a schematic cross-sectional view of the gas-liquid mixer shown in FIG. First, with reference to these FIG. 1 and FIG. 2, the structure of the ozone containing liquid production | generation apparatus 1 in this Embodiment is demonstrated.

  As shown in FIG. 1, an ozone-containing liquid generating apparatus 1 according to the present embodiment includes an ozone generator 10 as an ozone generating means, a gas-liquid mixer 20 as an ozone-containing liquid generating means, and a gas-liquid separating means. Gas-liquid separator 30, liquid introduction path L 1, ozone-containing liquid conveyance path L 2, ozone-containing liquid lead-out path L 3, first gas introduction path L 4, ozone conveyance path L 5, gas reflux path L 6, first 2 gas introduction paths L7 are mainly provided.

  The liquid introduction path L <b> 1 has a liquid supply port 2 at one end, and the other end is connected to the gas-liquid mixer 20. The liquid supply port 2 provided at one end of the liquid introduction path L1 is connected to a water supply facility that is an external liquid supply source, whereby the liquid introduction path L1 receives supply of tap water as a liquid from the water supply facility. The liquid introduction path L1 that receives the supply of tap water through the liquid supply port 2 introduces the supplied tap water into the gas-liquid mixer 20 from the other end.

  The first gas introduction path L4 has a first intake port 5 at one end, and the other end is connected to the ozone generator 10. From the first intake port 5 provided at one end of the first gas introduction path L4, air that is a gas containing oxygen serving as a raw material gas for generating ozone gas is sucked, and thereby the first gas introduction path L4 is Receives air supply from outside. The first gas introduction path L4 that has been supplied with air through the first intake port 5 introduces the supplied air into the ozone generator 10 from the other end.

  One end of the ozone transport path L5 is connected to the ozone generator 10 and the other end is connected to the gas-liquid mixer 20. A gas containing ozone gas generated in the ozone generator 10 is introduced from the one end of the ozone transport path L5, whereby the ozone transport path L5 is supplied with the gas from the ozone generator 10. The ozone transport path L5 that has been supplied with a gas containing ozone gas through the one end introduces the supplied gas into the gas-liquid mixer 20 from the other end.

  One end of the ozone-containing liquid conveyance path L <b> 2 is connected to the gas-liquid mixer 20, and the other end is connected to the gas-liquid separator 30. Ozone water as an ozone-containing liquid generated in the gas-liquid mixer 20 is introduced from the one end of the ozone-containing liquid conveyance path L2, and the ozone-containing liquid conveyance path L2 is thus supplied from the gas-liquid mixer 20 to the ozone. Get a water supply. The ozone-containing liquid conveyance path L2 that has been supplied with ozone water through the one end introduces the supplied ozone water into the gas-liquid separator 30 from the other end.

  One end of the ozone-containing liquid lead-out path L3 is connected to the gas-liquid separator 30 via the connection port 3, and the discharge port 4 is provided at the other end. From the connection port 3 provided at the one end of the ozone-containing liquid lead-out path L3, ozone water after gas-liquid separation is performed in the gas-liquid separator 30 is introduced, whereby the ozone-containing liquid lead-out path L3 is The supply of ozone water after the gas-liquid separation is received from the gas-liquid separator 30. The ozone-containing liquid lead-out path L3 that has received the supply of ozone water after gas-liquid separation via the connection port 3 externally supplies the supplied ozone water after separation from the discharge port 4 provided at the other end. Discharge toward

  In addition, the ozone-containing liquid lead-out path L3 is perpendicular to the connection port 3 and the discharge port 4 at a midpoint between the connection port 3 provided at one end and the discharge port 4 provided at the other end. It has the height part 40 located upwards along a direction. The said high location part 40 is comprised by raising a part of piping which comprises the ozone containing liquid derivation | leading-out path L3 upwards, for example.

  One end of the gas reflux path L6 is connected to the gas-liquid separator 30 and the other end is connected to the first gas introduction path L4 at the junction 8. From the one end of the gas reflux path L6, residual gas, which is a gas containing ozone gas separated from ozone water by gas-liquid separation in the gas-liquid separator 30, is introduced. Residual gas is supplied from the gas-liquid separator 30. The gas recirculation path L6 that has been supplied with the residual gas via the one end returns the supplied residual gas as a raw material gas to the first gas introduction path L4 via the junction 8 provided at the other end.

  The second gas introduction path L7 has a second intake port 6 at one end thereof, and the other end is connected to the above-described high place portion 40 of the ozone-containing liquid lead-out path L3. Under predetermined conditions, air, which is outside air, is sucked from the second intake port 6 provided at one end of the second gas introduction path L7, whereby the second gas introduction path L7 is supplied with air from the outside. . The second gas introduction path L7 that has been supplied with air through the second intake port 6 introduces the supplied air from the other end into the high-position portion 40 of the ozone-containing liquid outlet path L3.

  In FIG. 1, ozone water that has been subjected to gas-liquid separation in the gas-liquid separator 30 is indicated by reference numeral 100. Both the ozone water before separation and the ozone water after gas-liquid separation are described as ozone water 100 for explanation.

  The ozone generator 10 generates ozone gas from the raw material gas introduced through the first gas introduction path L4. As the ozone generator 10, 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 adopted as the ozone generator 10. The silent discharge type ozone generator 10 generates a silent discharge by applying an AC voltage between electrodes sandwiching an insulator, and passing ozone-containing gas between the electrodes to generate ozone. It is something to be made.

  The gas-liquid mixer 20 generates ozone water 100 as an ozone-containing liquid from tap water as a liquid introduced through the liquid introduction path L1 and a gas containing ozone gas introduced through the ozone transport path L5. Is to be generated. Here, in the present embodiment, as the gas-liquid mixer 20, a venturi-type gas-liquid mixing means capable of containing a gas containing ozone gas in tap water by utilizing the Venturi effect is employed. .

  As shown in FIG. 2, the gas-liquid mixer 20 includes a large-diameter channel portion 21 into which liquid is introduced, and a liquid that is located downstream of the large-diameter channel portion 21 and flows through the large-diameter channel portion 21. A small-diameter channel portion 22 to be introduced, and a conical channel portion 23 including a frustoconical channel that is located downstream of the small-diameter channel portion 22 and into which the liquid flowing through the small-diameter channel portion 22 is introduced. And have. The gas-liquid mixer 20 has a gas introduction passage portion 24 into which gas is introduced, and the gas introduction passage portion 24 communicates with the small-diameter passage portion 22 described above.

  The other end of the liquid introduction path L1 described above is connected to the large diameter flow path section 21, and the other end of the ozone transport path L5 described above is connected to the gas introduction path section 24. The one end of the ozone-containing liquid conveyance path L2 is connected to the conical channel section 23.

  When tap water as a liquid is introduced from the liquid introduction path L1 into the large-diameter channel portion 21, the tap water flowing through the large-diameter channel portion 21 is smaller in diameter than the large-diameter channel portion 21. 22 is introduced. Therefore, as is known from Bernoulli's theorem, in the small-diameter channel portion 22, the flow rate of tap water increases and the static pressure decreases.

  As a result, the static pressure of tap water flowing through the small-diameter channel portion 22 becomes negative, and the gas containing ozone gas is sucked into the small-diameter channel portion 22 from the ozone transport path L5 through the gas introduction passage portion 24. Is done. Therefore, in the small-diameter channel portion 22, the gas containing the sucked ozone gas is mixed into the tap water, and the mixed ozone gas is dissolved in the tap water. Thereby, the ozone water 100 is generated in the small-diameter channel portion 22.

  In the gas-liquid mixer 20, it is preferable that the mixed ozone gas is completely dissolved in the tap water. However, due to the occurrence of cavitation phenomenon, etc., the gas containing ozone gas exists in the liquid state in a part of bubbles. Will do.

  The generated ozone water 100 is introduced into the conical channel portion 23, and then discharged from the conical channel portion 23 and introduced into the ozone-containing liquid conveyance path L2.

  In this way, by using the gas-liquid mixer 20 which is a venturi-type gas-liquid mixing means, the gas containing the ozone gas is self-primed by the action of the gas-liquid mixer 20 and mixed into the tap water. Therefore, power for mixing the gas into tap water becomes unnecessary, and 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, the gas-liquid separator 30 temporarily stores the ozone water 100 and gas-liquid separates it, and includes a container that can store the ozone water 100 and residual gas. In the gas-liquid separator 30, residual gas containing ozone gas that has not been dissolved in the tap water in the gas-liquid mixer 20 is separated from the ozone water 100.

  In the gas-liquid separator 30, the residual gas floats on the liquid surface based on the specific gravity difference, is separated from the ozone water 100, and is stored above the gas-liquid separator 30. Therefore, only ozone water 100 that does not contain residual gas is stored below the gas-liquid separator 30, and the connection port 3 to which the ozone-containing liquid lead-out path L3 is connected from the gas-liquid separator 30. Only the ozone water 100 that does not contain residual gas is discharged toward the discharge port 4 via.

  In addition, one end of the gas reflux path L6 described above is connected above the gas-liquid separator 30. The exhaust port provided in the container of the gas-liquid separator 30 connected to the gas reflux path L6 is above the connection port 3 of the gas-liquid separator 30 connected to the ozone-containing liquid outlet path L3 in the vertical direction (that is, It is arranged at a high place. Thereby, the residual gas containing the ozone gas stored in the gas-liquid separator 30 is discharged | emitted via the said exhaust port with respect to the gas reflux path L6.

  In the gas-liquid separator 30, it is preferable that the residual gas containing the ozone gas that has not been dissolved in the tap water in the gas-liquid mixer 20 is completely separated from the ozone water 100. The gas containing the ozone gas contained in the gas does not necessarily need to be separated from the ozone water 100, and the residual gas containing the ozone gas contained in the ozone water 100 as relatively large bubbles without being sufficiently refined. Only this may be separated from the ozone water 100.

  A first check valve 7 is provided at a position closer to the first intake port 5 than the junction 8 to which the gas recirculation path L6 of the first gas introduction path L4 is connected. The first check valve 7 is a flow restricting means for restricting the flow direction of the fluid in one direction, and the pressure on the first intake port 5 side of the first gas introduction path L4 is the confluence portion 8 side (that is, the ozone generator 10). The valve opens when the pressure is higher than the pressure on the side, and closes when the pressure is lower.

  By providing the first check valve 7, the first gas introduction path L <b> 4 circulates the air as the raw material gas only in the direction from the first intake port 5 side toward the junction 8 side. Therefore, even if the pressure on the confluence portion 8 side of the first gas introduction path L4 rises higher than the pressure on the first intake port 5 side, the ozone gas flows back to the outside from the first intake port 5 It can be prevented from being discharged, and safety can be improved.

  Instead of the first check valve 7 described above, a flow rate control valve capable of controlling the flow rate of the air as the raw material gas may be provided in the first gas introduction path L4 as a flow restricting means. The flow rate control valve includes, for example, a valve body capable of closing the first gas introduction path L4, and the raw material from the first intake port 5 side toward the merging portion 8 side is adjusted by adjusting the valve opening amount of the valve body. The flow rate of air as gas can be adjusted. More specifically, a mechanical type that does not require power, an electronic electromagnetic valve that uses power, or the like can be used as the flow restricting means.

  A second check valve 9 is provided on the second gas introduction path L7. The second check valve 9 is a flow restriction means for restricting the flow direction of the fluid in one direction, and the pressure on the second intake port 6 side of the second gas introduction path L7 is higher than the pressure on the ozone-containing liquid lead-out path L3 side. The valve is opened when it is high, and closed when it is low.

  By providing the second check valve 9, the second gas introduction path L7 is used when the pressure on the second intake port 6 side of the second gas introduction path L7 is higher than the pressure on the ozone-containing liquid outlet path L3 side. Air as outside air is circulated in the direction from the second intake port 6 side toward the ozone-containing liquid lead-out path L3 side. 2. When the pressure is higher than the pressure on the side of the intake port 6, the inflow of the ozone water 100 located on the ozone-containing liquid outlet path L3 side to the second intake port 6 side is prevented.

  Next, with reference to FIG. 1, the operation | movement which produces | generates the ozone water 100 as an ozone containing liquid in the ozone containing liquid production | generation apparatus 1 in this Embodiment is demonstrated.

  The tap water introduced into the liquid introduction path L1 from the water supply facility, which is an external liquid supply source, via the liquid supply port 2 is introduced into the gas-liquid mixer 20 and flows through the gas-liquid mixer 20. Thereby, with the self-priming action of the gas-liquid mixer 20 described above, the air as the raw material gas passes through the first intake port 5 to the gas-liquid separator 30 through the gas recirculation path L6 and the junction 8. The stored residual gas is introduced into the first gas introduction path L4 as a raw material gas, and this is introduced into the ozone generator 10 to generate a gas containing ozone gas, and the generated gas containing the ozone gas is transported by ozone. It is supplied to the gas-liquid mixer 20 via the path L5.

  The supplied gas containing the ozone gas is mixed into the tap water in the gas-liquid mixer 20, whereby the ozone water 100 is generated in the gas-liquid mixer 20. The generated ozone water 100 is introduced into the gas-liquid separator 30 via the ozone-containing liquid conveyance path L2, and the gas-liquid separation is performed in the gas-liquid separator 30, and the residual gas contained in the ozone water 100 is removed. After being separated, it is introduced into the ozone-containing liquid lead-out path L3 through the connection port 3, and is discharged toward the outside through the discharge port 4. The residual gas separated from the ozone water 100 by the gas-liquid separator 30 is recovered via the gas recirculation path L6 and sent again to the ozone generator 10 via the first gas introduction path L4.

  FIG. 3 is an essential part enlarged cross-sectional view showing a state in which the ozone water generating operation is stopped in the ozone-containing liquid generating apparatus according to the present embodiment. Next, with reference to this FIG. 3 and FIG. 1 mentioned above, the operation | movement and state after stopping the production | generation operation | movement of the ozone water 100 in the ozone containing liquid production | generation apparatus 1 in this Embodiment are demonstrated.

  When the supply of tap water from the water supply facility, which is an external liquid supply source, is stopped, the self-priming action by the gas-liquid mixer 20 disappears, whereby the ozone generator 10 in the first gas introduction path L4 and the gas reflux path L6. The flow of the raw material gas toward is stopped. Here, the first check valve 7 provided on the first gas introduction path L4 restricts the flow of fluid only in the direction from the junction 8 side toward the first intake port 5 side. The liquid separator 30 is substantially in communication with the outside through the first gas introduction path L4 and the gas recirculation path L6 in the portion from the first intake port 5 to the junction 8. Therefore, when the pressure in the gas-liquid separator 30 decreases, as shown by the broken line arrow in FIG. 1, the portion of the first gas introduction path L <b> 4 and the gas reflux that extends from the first intake port 5 to the merging portion 8. Outside air can be introduced into the gas-liquid separator 30 via the path L6.

  Therefore, if the ozone-containing liquid lead-out path L3 does not have the height portion 40 as described above, and does not have the second gas introduction path L7 and the second check valve 9 described above, The ozone water stored in the gas-liquid separator 30 when the level of the ozone water 100 in the separator 30 is higher than the discharge port 4 provided in the ozone-containing liquid lead-out path L3. The ozone water 100 is discharged from the discharge port 4 on the basis of the water head pressure of 100, so that the gas-liquid is passed through the first gas introduction path L4 and the gas reflux path L6 from the first intake port 5 to the junction 8. When the outside air is introduced into the separator 30 and the discharge port 4 is positioned lower than the bottom surface of the gas-liquid separator 30, the residual gas containing ozone gas in the gas-liquid separator 30 Will be discharged from the discharge port 4.

  However, in the ozone-containing liquid generating apparatus 1 according to the present embodiment, the ozone-containing liquid lead-out path L3 has the high portion 40 as described above, and the second gas introduction described above is introduced into the high portion 40. Since the path L7 is connected and the second check valve 9 is provided on the second gas introduction path L7, the above phenomenon is prevented from occurring due to these actions.

  Specifically, in the ozone-containing liquid generating apparatus 1 in the present embodiment, the level of the ozone water 100 in the gas-liquid separator 30 is more than the discharge port 4 provided in the ozone-containing liquid lead-out path L3. Even when the ozone water 100 stored in the gas-liquid separator 30 is discharged through the discharge port 4 even when it is located at a high place, the liquid surface thereof is connected to the second gas introduction path L7. When the second check valve 9 is opened to the height of the connecting portion with the ozone-containing liquid lead-out path L3, the second check valve 9 is opened in the ozone-containing liquid lead-out path L3 as shown by the broken line arrow in FIG. Air as outside air is introduced through the intake port 6 and the second gas introduction path L7.

  Therefore, as shown in FIG. 3, the level of the ozone water 100 stored in the gas-liquid separator 30, the connection port connected to the gas-liquid separator 30 of the ozone-containing liquid lead-out path L3, and the second gas introduction Since the liquid surface of the ozone water 100 in the portion located between the connection portion to the path L7 has the same height, the head pressure of the ozone water 100 in these portions is balanced. Along with this, the ozone water 100 is separated from the discharge port 4 by the outside air introduced into the ozone-containing liquid lead-out path L3 via the second intake port 6 and the second gas introduction path L7. Further discharge of the ozone water 100 through the outlet 4 is stopped. Therefore, the residual gas containing the ozone gas stored in the gas-liquid separator 30 is not discharged to the outside.

  Here, in order to make the above operation more reliable, the valve opening pressure of the second check valve 9 is set at a position where the connecting portion between the second gas introduction path L7 and the ozone-containing liquid outlet path L3 is provided, What is necessary is just to set lower than the head pressure of the ozone water 100 which generate | occur | produces based on the position difference (position difference H shown in FIG. 3) in the vertical direction with the position where the discharge port 4 is provided.

  In the above description, the case where the level of the ozone water 100 in the gas-liquid separator 30 is located higher than the discharge port 4 provided in the ozone-containing liquid lead-out path L3 has been described. Even when the level of the ozone water 100 in the separator 30 is located at the same height as or lower than the discharge port 4 provided in the ozone-containing liquid lead-out path L3, the description thereof is omitted. However, similarly, when the outside air is introduced into the ozone-containing liquid lead-out path L3 via the second intake port 6 and the second gas introduction path L7, the ozone water 100 is separated from the discharge port 4 by the introduced outside air. In this state, the discharge of the ozone water 100 through the discharge port 4 is stopped.

  As described above, by using the ozone-containing liquid generating apparatus 1 according to the present embodiment, the residue containing ozone gas can be obtained through the discharge port 4 regardless of the position of the discharge port 4. Since it is possible to prevent the gas from flowing out, it is possible to provide a safe ozone-containing liquid generating device, which is always higher than the liquid level of the ozone water 100 stored in the gas-liquid separator 30. Since it is not necessary to install the discharge port 4 at the place, it is possible to provide an ozone-containing liquid generating apparatus in which there are no restrictions on the installation position or the layout of the component parts.

  In addition, in this Embodiment demonstrated above, although the case where the 2nd check valve 9 was provided as a flow restriction means installed in the 2nd gas introduction path L7 was illustrated, Instead, a flow rate control valve capable of controlling the flow rate of the air as the outside air may be provided as the flow restriction means. The flow rate control valve includes, for example, a valve body capable of closing the second gas introduction path L7. By adjusting the valve opening amount of the valve body, the flow rate control valve is directed from the second intake port 6 side toward the ozone-containing liquid outlet path L3 side. The flow rate of air as all outside air can be adjusted. More specifically, a mechanical type that does not require power, an electronic electromagnetic valve that uses power, or the like can be used as the flow restricting means.

  Further, in the present embodiment described above, the venturi-type gas-liquid mixer 20 is used as the ozone-containing liquid generating means, and thereby the raw material is supplied to the gas-liquid mixer 20 by the self-priming action of the gas-liquid mixer 20. The case where the gas is supplied is illustrated, but it is also possible to use a gas-liquid mixing unit having no self-priming action as the ozone-containing liquid generating unit. In that case, a means for forcibly pumping a gas such as a pump may be provided in the first gas introduction path L4, the ozone transport path L5, and the gas recirculation path L6 as necessary.

  Further, in the above-described embodiment, the case where the gas-liquid separator 30 provided with the container is provided as the gas-liquid separating means is exemplified. However, any gas-liquid separator can be used as long as gas-liquid separation is possible. It can be used as a liquid separation means. For example, a part of a pipe connecting the ozone-containing liquid conveyance path L2 and the ozone-containing liquid lead-out path L3 can be expanded to be a gas-liquid separation means.

  Further, in the present embodiment described above, the case where the outside air is sucked as the raw material gas is exemplified, but the first intake port 5 of the first gas introduction path L4 is connected to an oxygen cylinder or the like. It may be used.

  Moreover, in this Embodiment mentioned above, although the case where this invention was applied to the ozone containing liquid production | generation apparatus 1 which can be attached as a washing | cleaning unit to normal water supply equipment by unitizing was illustrated, normal You may apply this invention to the washing | cleaning apparatus comprised so that it might integrate previously with water supply equipment. Furthermore, the present invention may be applied to an ozone-containing liquid generating device that can be attached as a cleaning unit to other liquid supply equipment other than normal water supply equipment, or other liquid supply other than normal water supply equipment The present invention may be applied to a cleaning device configured to be integrated with equipment.

  Here, as the above-described cleaning device, it is used for cleaning water facilities provided in kitchens, bathrooms, toilets, washrooms, etc., pipes attached to dwelling units, factories, etc., or mechanical equipment installed in factories, etc. Cleaning equipment, parts cleaning equipment as production equipment installed in factories, cleaning equipment for various products and products including foodstuffs, various cleaning equipment used in medical facilities, hand washers and face washers, etc. And various cleaning devices for the purpose of sterilization, deodorization, bleaching and the like that are symmetrical about the floor or wall surface of the building.

  As described above, the present invention can be applied to various cleaning units and cleaning apparatuses without departing from the spirit of the present invention.

  The above-described embodiment disclosed above is illustrative in all points and is 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.

  DESCRIPTION OF SYMBOLS 1 Ozone containing liquid production | generation apparatus, 2 liquid supply port, 3 connection port, 4 discharge port, 5 1st inlet port, 6 2nd inlet port, 7 1st check valve, 8 merge part, 9 2nd check valve, DESCRIPTION OF SYMBOLS 10 Ozone generator, 20 Gas-liquid mixer, 21 Large diameter flow path part, 22 Small diameter flow path part, 23 Conical flow path part, 24 Gas introduction path part, 30 Gas-liquid separator, 40 Altitude part, 100 Ozone water , L1 liquid introduction path, L2 ozone-containing liquid conveyance path, L3 ozone-containing liquid lead-out path, L4 first gas introduction path, L5 ozone conveyance path, L6 gas reflux path, L7 second gas introduction path.

Claims (5)

Ozone generating means for generating ozone using a gas containing oxygen;
Ozone-containing liquid generating means for generating an ozone-containing liquid by containing ozone generated by the ozone generating means in a liquid;
A first gas introduction path for introducing a gas containing oxygen into the ozone generating means;
A liquid introduction path for introducing liquid into the ozone-containing liquid generation means;
A gas-liquid separating means for temporarily storing the ozone-containing liquid generated by the ozone-containing liquid generating means and gas-liquid separating the ozone-containing liquid;
A gas reflux path for refluxing the gas containing ozone separated from the ozone-containing liquid by the gas-liquid separation means to the first gas introduction path;
An ozone-containing liquid lead-out path for leading out the ozone-containing liquid after gas-liquid separation by the gas-liquid separation means;
The ozone-containing liquid lead-out path is perpendicular to the connection port and the discharge port at a midway position between a connection port connected to the gas-liquid separation means and a discharge port for discharging the ozone-containing liquid toward the outside. It has a high part located above,
An ozone-containing liquid generating apparatus, further comprising a second gas introduction path for introducing gas from the outside toward the high place.   The said 2nd gas introduction path contains the non-return valve which prevents that the gas and liquid which are located in the said ozone containing liquid derivation | leading-out path through the said 2nd gas introduction path leak outside. The ozone-containing liquid production | generation apparatus of description.   The valve opening pressure of the check valve is generated based on a vertical position difference between the position where the second gas introduction path is connected to the ozone-containing liquid outlet path and the position where the discharge port is provided. The ozone-containing liquid production | generation apparatus of Claim 2 lower than the liquid head pressure of a containing liquid.   The ozone-containing liquid production | generation apparatus in any one of Claim 1 to 3 comprised by 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 apparatus in any one of Claim 1 to 4.

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