JP2012236168A - Ozone water producing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dissolve the problem that miniaturization is difficult since installation of a dehumidification part and a pump is necessary in a conventional ozone water producing system, and a conventional apparatus utilizing a float valve is not also sufficiently small and has a shape that is difficult to make as the shape of a gas-liquid separation mechanism.SOLUTION: An ozone water producing system has an ozone generator, a gas liquid mixing part for mixing ozone gas and liquid, and a gas-liquid separation mechanism for separating mixed gas and liquid. In this system, the gas-liquid separation mechanism has a liquid guiding entrance, a liquid guiding exit, a gas guiding entrance, and a gas guiding exit and further has a gas liquid mixing part inside. The liquid guiding entrance of the gas-liquid separation mechanism is provided at a bottom face and liquid is introduced into the gas liquid mixing part upward from below.

Description

  The present invention relates to an ozone water generation system.

  Conventionally, an ozone water generation system includes an ozone generator and a gas-liquid mixer, and generates ozone water by mixing ozone gas generated by the ozone generator with a liquid such as water.

  A predetermined amount or more of ozone gas is harmful to the human body. When the ozone water is used in an open atmosphere, it is necessary to separate the undissolved ozone gas and discharge it with only ozone water.

  Therefore, in general, the ozone water generation system is provided with a gas-liquid separation mechanism so that the human body is not exposed to ozone gas when using ozone water. Various gas-liquid separation mechanisms have been proposed. Further, as a function of the gas-liquid separation mechanism, not only separation of gas and liquid but also a device that prevents water from flowing into the gas return path when the internal water level rises is required.

  As described above, in providing a gas-liquid separation mechanism in the ozone water generation system, a technique related to an ozone water generation apparatus that collects and reuses undissolved exhaust ozone gas in order to increase the utilization efficiency of ozone gas is also known.

  Patent Document 1 is an example of an ozone water generator that recovers and reuses undissolved exhaust ozone gas. The ozone gas generated by the ozone generator is mixed with water in a gas-liquid mixer to generate ozone water. A sealed tank that has a function of separating ozone water into ozone gas and ozone water, and a gas return path that connects the sealed tank and the ozone generator. Supply to the generator. For this reason, it is possible to reuse the undissolved ozone gas contained in the exhaust gas.

  In the above configuration, if ozone water is continuously generated for a certain period of time, the ozone gas dissolved in water and the ozone gas contained in the ozone water are derived without being gas-liquid separated in the sealed tank, and the flow rate of the circulating gas Will decrease. Therefore, the above-mentioned ozone water generation system is provided with a level switch that can detect the amount of gas decrease in the closed tank and a control circuit that controls the supply of oxygen from the oxygen cylinder to the ozone generator, and replenishes oxygen. Stable generation of ozone water is continued.

  Further, Patent Document 2 particularly realizes the function of the gas-liquid separation mechanism more easily by eliminating the level switch and installing a float valve therein as the internal shape of the gas-liquid separation mechanism.

Japanese Patent Laid-Open No. 2-207892 Japanese Patent Laid-Open No. 2002-5301

  However, when a level switch as shown in Patent Document 1 is used, not only the size of the ozone water generation system is greatly increased, but also there are many concerns about leakage from a seal portion such as a portion where the sensor is introduced into the sealed tank. .

  In addition, since the gas outlet provided in the sealed tank is not provided with a valve that opens and closes according to the amount of stored liquid, when the water level of the sealed tank suddenly rises, liquid can enter the gas return path. Cannot be forcibly blocked. For this reason, the liquid overflows through the gas outlet, and the gas return path, the ozone generator, etc. are submerged.

  In addition, since the gas flow between the sealed tank and the gas return path cannot be completely shut off, the gas pressure in the sealed tank becomes positive under the influence of water pressure, and the suction force due to the self-priming of the gas-liquid mixer By itself, the gas in the sealed tank tends to flow back toward the oxygen cylinder. For this reason, oxygen replenishment to the ozone water generator must be pumped at a pressure higher than the internal pressure of the sealed tank, and the system must be configured in consideration of the balance between the oxygen replenishment pressure and the tank internal pressure. It becomes a very complicated piping system.

  The ozone water generation system of Patent Document 2 in which a level switch is eliminated by providing a float valve inside the gas outlet of the gas-liquid separation mechanism will be described. An ejector-type gas-liquid mixer (not shown) is connected to the liquid inlet side of the gas-liquid separation mechanism, and after mixing ozone gas and water, the gas-liquid mixed fluid flows from the liquid inlet. After that, it passes through the inflow hole vacated in the swirl direction, creates a swirl flow inside the gas-liquid separation cylinder, collects the gas at the center of rotation, discharges the gas from the ozone gas discharge hole at the top of the separation cylinder, The ozone water is discharged from the discharge port through the discharge hole through the space formed by the gas-liquid separation cylinder and the inner wall of the ozone water tank.

  The float valve mechanism is composed of a crescent-shaped float, lever member, and rubber plug that has an exhaust port for exhausting ozone gas separated inside the separator to the outside of the ozone water tank, and that opens and closes the exhaust port. Have With the above configuration, both the gas-liquid separation function and the miniaturization are achieved.

  However, the internal shape of the gas-liquid separation mechanism is complex, and considering the fact that the float valve functions stably, this structure is a structure that obtains buoyancy by making the float large, and it is difficult to reduce the size sufficiently It is. Further, when generating ozone water, an ejector-type gas-liquid mixer (not shown) and a joint for connection, which are not shown in the drawings, are required as components, which necessitates that space and hinders miniaturization.

  In addition, liquid may adhere to the ceiling inside the gas-liquid separation mechanism due to condensation or splashing of liquid, and this liquid is transmitted to the ozone generator from the gas outlet of the gas-liquid separation mechanism. By discharging the liquid, there has been a problem of a decrease in the amount of ozone generated and a decrease in the life of the ozone generator.

  The present invention has been made in view of the above-mentioned problems, and has a small size and simple configuration, can be molded, can ensure long-term operational stability, and has a high-concentration ozone water generation capability and gas-liquid separation performance. A compatible ozone water generation system is provided.

  In order to solve the above-mentioned problems, an ozone water generation system according to the present invention includes an ozone generator, a gas-liquid mixing unit that mixes ozone gas and water generated by the ozone generator, and ozone generated by dissolving ozone gas in water. It has a gas-liquid separation mechanism that separates water and undissolved ozone gas, and the gas-liquid separation mechanism has a liquid inlet, a liquid outlet, a gas inlet, a gas outlet, and the gas-liquid mixing part inside. . The liquid inlet of the gas-liquid separation mechanism is provided on the bottom surface of the gas-liquid separation mechanism, and introduces liquid into the gas-liquid mixing unit from the bottom surface upward. By setting it as the said structure, especially the liquid inlet of the said gas-liquid separation mechanism will be arrange | positioned in the state opened to the bottom face part. By adopting this structure, the mold can be easily pulled out at the time of molding, which leads to cost reduction of the ozone water generation system.

  In the ozone water generation system of the present invention, the gas inlet is provided on the side surface of the gas-liquid separation mechanism, and the tip thereof does not protrude from the outer surface of the gas-liquid separation mechanism. By setting it as the said shape, it becomes the structure which is easy to pull out a metal mold | die at the time of shaping | molding, and leads to the cost reduction of an ozone water production | generation system.

  In the ozone water generation system of the present invention, the gas outlet has a protrusion on the inside of the gas-liquid separation mechanism, and a groove is formed around the protrusion. By adopting the shape, the liquid droplets formed by the moisture inside the gas-liquid separation mechanism adhering to the inner wall surface due to dew condensation or the like are transmitted back through the wall surface to the ozone generator from the gas outlet. Can be prevented. This will prevent the ozone generator from malfunctioning and extend the life of the system.

  Further, the ozone water generation system of the present invention includes a float, a float arm connecting the float and the lid portion of the liquid separation mechanism, a protrusion inside the gas-liquid separation mechanism of the gas outlet, inside the gas-liquid separation mechanism. The float arm has a float valve formed with a float plug that opens and closes the portion, and the float arm has a downward bent shape. By using a float arm having a downward bent shape, the operating point of the float valve can be lowered, and the gas-liquid separation mechanism can be downsized.

  Further, the float of the ozone water generation system of the present invention has a cylindrical, prismatic shape and an open bottom, and the connection portion of the float arm provided on the upper side is closer to the outside of the gas-liquid separation mechanism than the center of the float cross section. Offset to the cylinder side. With this configuration, the sealing force of the valve can be increased by the lever principle with a small float buoyancy, leading to prevention of failure of the ozone generator and extending the life of the system.

  The ozone water generation system of the present invention can be produced at low cost by making the gas-liquid separation mechanism a structure that can be easily molded. Moreover, the gas-liquid separation mechanism can be reduced in size, and the ozone water generation system itself can be reduced in size.

  Furthermore, the ozone water generation system of the present invention can prevent the backflow of water to the ozone generator by devising the structure related to the gas outlet in the gas-liquid separation mechanism and effectively utilizing the buoyancy of the float valve. The life of the generation system can be extended.

It is a figure which shows the piping system of the ozone water production | generation system which concerns on one Embodiment of this invention. It is a figure which shows the shape of the gas-liquid separation mechanism used for the ozone water production | generation system which concerns on one Embodiment of this invention. It is a figure which shows the float part of the gas-liquid separation mechanism used for the ozone water production | generation system which concerns on one Embodiment of this invention. It is a figure which shows another plan of the shape of the gas-liquid separation mechanism used for the ozone water production | generation system which concerns on one Embodiment of this invention. It is a flowchart of the ozone water production | generation system which concerns on one Embodiment of this invention. It is a timing chart of the ozone water generation system concerning one embodiment of the present invention. It is a schematic diagram which shows the gas flow of the 1st mode of the ozone water generation system which concerns on one Embodiment of this invention. It is a schematic diagram which shows the gas flow of the 2nd mode of the ozone water production | generation system which concerns on one Embodiment of this invention.

  The case where an ozone gas circulation system is used as one embodiment of the present invention will be described with reference to FIG.

  The ozone water generation system 200 has a circulation path A through which gas is circulated. The ozone water generation system 200 exits from a gas outlet 209 of the gas-liquid separation mechanism 202 and passes through a T-joint 219 to generate ozone gas. There is a circulation path A that leads to the gas inlet 204 of the gas-liquid separation unit 202 containing a gas-liquid mixing unit that mixes ozone gas. Connected to the other end of the T-joint 219 is a check valve 203 that can flow gas only in the direction toward the circulation path A from the outside of the ozone water generation system.

  The ozone generator 201 introduces a gas such as air or oxygen from the pipe c, generates ozone gas from a part of the oxygen contained therein, and derives the ozone gas to the gas inlet 204 provided in the gas-liquid separation mechanism 202. doing. Here, if the ozone generator 201 is a structure which produces | generates ozone gas from gas, such as air and oxygen introduce | transduced, it is possible to use a general ozone generator.

  The gas-liquid separation mechanism 202 has a total of four external connection ports, a liquid inlet 206, a gas inlet 204, a gas outlet 209, and a liquid outlet 210. A liquid is introduced into the gas-liquid separator through the liquid inlet 206, and ozone water is generated by mixing with the ozone gas self-primed from the gas inlet 204 in the gas-liquid mixing section inside the gas-liquid separation mechanism. Thereafter, the generated gas-liquid mixed ozone water is gas-liquid separated so that the separated gas is taken out from the gas outlet 209 and the generated ozone water is taken out from the liquid outlet 210 so that the ozone gas is not discharged safely. Ozone water can be obtained.

  For the gas separated at this time, the ozone gas is effectively utilized by flowing through the circulation path A and passing through the ozone generator 201 again.

  Moreover, since the check valve is provided in the pipe c for introducing gas from the outside of the ozone water generation system as described above, the ozone gas in the circulation path does not flow out to the outside, and the gas is raised when the water level rises. It is a piping system that can lower the water level by introducing.

  The shape of the gas-liquid separation mechanism suitable for the ozone water generation system according to the present invention will be described in detail with reference to FIG.

  The gas-liquid separation mechanism 202 is a sealed container that can store liquid or gas. The gas-liquid separation mechanism lid 211 and the gas-liquid separation mechanism case 212 have a structure in which a packing 217 such as silicon rubber is sandwiched, or are bonded and welded to ensure high sealing performance.

  The liquid introduction port 206 for introducing the liquid into the gas-liquid separation mechanism 202 is installed on the bottom surface of the gas-liquid separation mechanism from the bottom upward, and has a structure also serving as a liquid introduction port to the gas-liquid mixing unit.

  The liquid flowing into the gas-liquid separation mechanism flows upward from the liquid inlet 206, passes through the contracted portion 207, and gas such as ozone gas and air flowing from the gas inlet 204 by self-priming and gas-liquid. It mixes in the mixing part 205, and is discharged | emitted from the taper part 208 inside gas-liquid separation mechanisms as gas-liquid mixtures, such as ozone water.

  As the shape of the gas-liquid mixing part in the present invention, a venturi type is adopted. In principle, when a liquid is introduced from the liquid introduction port 206, the gas-liquid mixing unit 205, which is a liquid flow path that has passed through the contraction unit 207, increases the flow velocity and decreases the static pressure, as is known from Bernoulli's theorem. As a result, the static pressure of the flowing liquid becomes a negative pressure, so that a gas self-priming operation occurs by forming a flow path of the gas introduction port 204 with respect to the gas-liquid mixing unit 205. By using this, the introduced gas and liquid are mixed and led out from the tapered portion 208 as a gas-liquid mixture. Here, when the gas to be introduced is ozone gas, the water to be introduced and the ozone gas are mixed to generate ozone water.

  Since the liquid inlet 206 of the gas-liquid separation mechanism 202 is arranged in an open state on the bottom surface, the gas-liquid separation mechanism 206 can be easily pulled out, and can be easily molded to be mass-produced. . This leads to cost reduction of the ozone water generation system. The bottom surface means a surface corresponding to a gravitational lower surface.

  The gas introduction port 204 is provided on the side surface of the gas-liquid separation, and its tip does not protrude from the outer surface of the gas-liquid separation mechanism. With such a shape, the gas-liquid separation mechanism main body can be manufactured as a molded product, and the unit can be provided at low cost and with stable quality. Moreover, since it does not protrude in the side direction, it is small and there is no fear of damaging the root part due to a collision.

  The gas-liquid mixture after passing through the tapered portion 208 is separated into ozone gas and ozone water in a space formed by the gas-liquid mixing portion 205 and the inner wall of the gas-liquid separation mechanism 202, and the separated gas is a gas outlet. From 209, the generated ozone water can be taken out from the liquid outlet 210 to obtain safe ozone water that does not discharge ozone gas.

  The liquid outlet 210 is arranged at the bottom of the gas-liquid separation mechanism container so that the liquid flows downward. Further, the liquid outlet 210 may be formed not on the bottom surface portion but on the side surface of the gas-liquid separation mechanism case 212 as shown in FIG.

  The structure around the gas outlet 209 will be described.

  The gas outlet 209 is provided in the gas / liquid separation mechanism lid 211 and communicates with a gas outlet hole 214 formed in a protrusion 213 formed inside the gas / liquid separation mechanism. By forming the groove 216 around the protrusion 213, the liquid adhering to the inner wall surface of the lid 211 of the gas-liquid separation mechanism 202 generated by liquid splash or condensation caused by the liquid that has passed through the gas-liquid mixing unit. Does not flow into the gas outlet hole 214.

  Below the protrusion 213, as a mechanism for closing the gas outlet hole 214, a float 220 provided together with the gas-liquid mixing unit, a float arm 221 for connecting the float 220 and the gas-liquid separation mechanism lid 211, and a float A self-opening / closing type float valve 224 comprising a float plug 222 provided on the arm 221 is provided, and the float 220 is configured to rise and fall in accordance with fluctuations in the liquid level. The float arm 221, the float 220, and the lid 211 of the gas-liquid separation mechanism 202 are fitted so that they can rotate with each other by using a resin or metal shaft or devising the shape of the above three parts. You may comprise.

  The float 220 is preferably made of a material having a value smaller than the specific gravity of the liquid stored in the gas-liquid separation mechanism 202, and the bottom surface has a hollow structure. This realizes a lightweight, easy to obtain buoyancy, and a shape that can be manufactured by molding. The float 220 follows the height of the liquid level stored in the gas-liquid separation mechanism 202 and rises as the liquid level rises and descends as the liquid level falls.

  FIG. 3 is a view in which a float valve 224 is attached to the lid portion 211 of the gas-liquid separation mechanism 202.

  2 and 3, the float arm 221 covers the groove 216 formed around the protrusion 213 of the gas outlet 209, and is formed in a bar, flat plate, strap, etc. It has a bent portion, and connects the lid portion 211 of the gas-liquid separation mechanism 202 and the float 220. Thereby, the float 220 can be installed at a lower height, and the working liquid level at which the float valve 204 is closed can be lowered without increasing the size of the float 220. As a result, the liquid can be eliminated from the gas outlet 209.

  One end of the float arm 221 is connected to the float 220, and a rib 215 for preventing rotation of the float 220 is provided at this connecting portion.

  The liquid that has passed through the tapered portion 208 of the gas-liquid mixing unit 205 is discharged upward in the gas-liquid separation mechanism 202, and is then gas in the space between the gas-liquid mixing unit 205 and the casing of the gas-liquid separation mechanism 202. Although the liquid is separated, when a large amount of liquid is flowed with respect to the size of the gas-liquid separation mechanism 202, the waviness of the liquid surface appears remarkably. With respect to the float 220 whose bottom is open, the float 220 is inclined due to the undulation of the liquid surface, and the float plug 222 may not be closed unless the desired buoyancy is obtained and the liquid level is higher than expected. . As a countermeasure, by providing the rotation prevention rib 220 on the float arm 221 side of the connection part with the float 220, the float 220 can be inclined even at a flow rate where the liquid level undulates, and the horizontal state is maintained. The gas outlet 209 can be opened / closed stably.

  Further, the position of the bottom of the float 220 is configured to be lower than the height of the outlet of the gas-liquid mixing unit 205 built in the gas-liquid separation mechanism 202. Thereby, since the liquid which passed the taper part 208 of the gas-liquid mixing part 205 does not penetrate | invade directly into the inside of the float 220, the float 220 can obtain the stable buoyancy and performs the operation | movement of the float valve 224 stably. be able to.

  The float plug 222 serves as a plug (valve) that closes the gas outlet 209 when the liquid level becomes a predetermined amount or more, and has a cylindrical shape, a prismatic shape, a spherical shape, a flat plate, a disc shape, or the like. doing.

  The above-described self-opening / closing means utilizes the lever principle and can close the protrusion 213 communicating with the gas outlet 209 with high pressure. The connection point between the float arm 221 and the gas-liquid separator lid 211 is the fulcrum x, the connection point between the float arm 221 and the float 220 is the force point y, and the float plug 222 and the gas outlet hole 214 at the tip of the projection contact each other. The lever principle can be used by using the contact portion z of 222 as an action point. In order to make effective use of this principle, a weak buoyancy can be obtained by forming the connection portion with the float arm 221 provided at the upper part of the float to be offset to the outer cylinder side of the gas-liquid separation mechanism 202 from the float cross-sectional center 223. Even when a small float 220 that can be obtained only is used, the gas outlet hole 214 can be surely closed, so that the float 220 can be downsized.

  As described above, the self-opening / closing control type float valve 224 generally serves as a self-powered water level adjusting means for automatically adjusting the liquid storage amount in a tank or the like so as to keep the liquid storage amount within a certain range. It is designed so that the float valve 224 is in the open state when it is below, and the float valve 224 is switched to the closed state when it exceeds a certain amount.

  For this reason, in the mechanism of the float valve 224, when the amount of liquid stored in the gas-liquid separation mechanism 202 exceeds a certain amount, the gas outlet 209 is switched from the open state to the closed state, and the gas flows out from here. By preventing this, liquid storage in the liquid storage tank 225 exceeding a certain amount is prevented.

  For example, even when the amount of liquid that can be discharged from the liquid outlet 210 is introduced into the liquid inlet 206 and the amount of liquid stored in the liquid storage tank 225 gradually increases as time passes, Since the amount of liquid stored in the liquid tank 225 can be adjusted to a certain range, it is possible to prevent the liquid from overflowing from the gas outlet 209.

  The shape of the gas-liquid separation mechanism 202 does not have to be a cylindrical shape, and may be a polygonal column, a polygonal pyramid, a conical shape, or the like. Further, the size of the gas-liquid separation mechanism 202 can be changed as appropriate according to the application destination of the ozone water unit, and the liquid storage tank 225 is formed by expanding a part of the piping and forming a container portion. May be formed.

  As shown in FIG. 2, the circulation path A is formed by a piping system composed of hoses, pipes, etc., and the piping a from the gas discharge port 209 of the gas-liquid separation mechanism 202 to the T-shaped joint 219, and the T-shaped joint 219 to the ozone generator. The pipe b connects the inlet 201 and the pipe d connects the outlet of the ozone generator 201 and the gas inlet 204 of the gas-liquid mixing unit 205.

  The pipe c connects the check valve 203 to the other one of the T-shaped joints 219, and introduces gas from the external port 218 of the ozone water generation system 200 to the circulation path A. The tip of the external port 218 is open to the atmosphere.

  Since the pipe c provided with the check valve 203 allows gas to pass only in the direction from the outside toward the circulation path A, it is possible to prevent the gas from being released from the circulation path A to the outside. Can be generated. Further, instead of the check valve 203, gas introduction into the ozone water generation system may be controlled by using a manual valve, an electromagnetic valve, or the like.

  The pipe a may be provided with a second check valve (not shown) between the gas outlet 209 of the gas-liquid separation mechanism 202 and the T-shaped joint 219. In this case, the second check valve is provided in a direction in which gas can pass from the gas outlet 209 toward the T-shaped joint 219. As a result, when the gas is introduced into the circulation path A through the check valve 203 from the outside of the ozone water generation system 200, the introduced gas can be prevented from entering from the gas outlet 209 via the pipe a. The operation of the float valve 224 can be made more stable.

  The present embodiment aims to propose a configuration of the ozone water generation system 200 that is as simple as possible, and hereinafter, the case where the second check valve is not used will be described.

≪Operation explanation≫
Next, the operation of the ozone water generation system 200 according to the present invention will be described.

  In order to simplify the description, the gas is described using air and the liquid is water. However, the gas may use oxygen in addition to air, and the liquid may dissolve ozone gas in addition to water. Other solutions may be used as long as possible.

  The gas-liquid separation mechanism 202 is designed to be a sealable container having a cylindrical shape with a diameter of 30 to 80 mm and a height of about 100 to 300 mm, and a water flow rate of 3 L / min is introduced from the liquid inlet 206. Yes. The size of the float 220 is assumed to be about 15 to 30 mm in outer diameter Φ.

The ozone water generation system 200 according to the present invention includes a first mode (internal gas circulation mode) and a second mode (outside air introduction mode) as shown in the flowchart of FIG. The mode switching is performed with the liquid value X as a boundary. Here, the specific value H is a value with which the float valve 224 can close the gas outlet 209,
The first mode is a mode in which the gas outlet 209 is opened and the gas separated in the gas-liquid separation mechanism 202 is circulated.
In the second mode, by closing the gas outlet 209, the pipes a, b, d are in a negative pressure state using the principle that the gas introduction unit 204 of the gas-liquid separation mechanism 202 self-sucks, In this mode, the check valve 203 is opened and gas is introduced from the external port 218.

  The mode switching operation will be described below with reference to FIGS.

  First, in a state where the stored liquid amount value X stored in the gas-liquid separation mechanism is smaller than a specific value H, water is pumped to the gas-liquid mixer 202 to turn on the ozone generator 201 to turn on the ozone water. Start generation. This corresponds to S1 in the flowchart of FIG. 5 and the timing chart t0 of FIG.

  Immediately after the operation starts, the value X of the liquid storage amount of the gas-liquid separation mechanism 202 is smaller than the specific value H (X <H), so the ozone water generation system 200 starts the operation as the first mode. This corresponds to S2 in the flowchart of FIG. 5 and t0 to t2 in the timing chart of FIG.

  Water introduced from the liquid inlet 206 of the gas-liquid mixing unit 205 is stored in the gas-liquid separation mechanism 202 through the gas-liquid mixing unit 205. For this reason, a part of the air stored in the gas-liquid separation mechanism 202 is led out from the liquid outlet 210 so as to be pushed out by the introduced water. Eventually, the water level of the water stored in the gas-liquid separation mechanism 202 becomes higher, and the liquid outlet 210 is closed with water.

  At this time, the air in the ozone water generation system 200 is in a sealed state confined in the space between the gas-liquid separation mechanism 202 and the ozone generator 201 and the pipes a, b, and d. Here, the sealed state is not a physically sealed state but a state where a gas is confined by a liquid.

  The trapped air is flowed by the water flow and introduced into the ozone generator 201 to generate ozone gas. Thereafter, the ozone gas is introduced from the gas introduction port 204 of the gas-liquid separation mechanism 202 via the pipe d, and mixed with the liquid introduced from the liquid introduction port 206, thereby generating ozone water.

  Here, since the ozone water contains an ozone solution in which ozone gas is dissolved in the liquid and an ozone bubble liquid in which the ozone gas is mixed as bubbles in the liquid, the taper of the gas-liquid mixing unit 205 inside the gas-liquid separation mechanism 202 is included. After passing through the section 208, the gas is separated into a gas containing ozone gas or air and a liquid containing an ozone solution.

The separated gas containing ozone gas and air returns to the confined space and circulates again. For this reason, the gas in the ozone water generation system 200 is as shown in the schematic diagram of FIG.
Gas-liquid separation mechanism 202 → Pipe a → T-shaped joint 219 → Pipe b → Ozone generator 201 → Pipe d → Gas inlet 204 of the gas-liquid separation mechanism → Gas-liquid mixing part 205 → Taper part 208 → Gas-liquid separation After that, the gas outlet 209 → the pipe a → the T-shaped joint 219 is circulated in the same order. As a result, the ozone generator 201 does not dissolve in water and generates ozone based on the gas containing the gas-liquid separated ozone gas. Therefore, the ozone generator 201 can obtain a higher concentration ozone gas. By performing gas-liquid mixing, ozone water having a high concentration can be obtained.

  As the time further elapses, the liquid level inside the gas-liquid separation mechanism 202 gradually rises as dissolved or minute bubbles that cannot be completely separated from the gas exit from the liquid outlet 210, and eventually, When the value X of the liquid storage amount of the gas-liquid separation mechanism 202 becomes equal to or greater than the value of the specific liquid storage amount H (X ≧ H), the mode is switched to the second mode. This corresponds to S3 in the flowchart of FIG. 5 and t2 to t3 in the timing chart of FIG.

  The gas outlet 209 of the gas-liquid separation mechanism is switched to the closed state by the float valve mechanism, and air is sucked from the outside to the inside of the ozone water generation system through the gas introduction unit as shown in the schematic diagram of FIG. The inhaled gas passes through the ozone generator 201, enters the gas-liquid separation mechanism 202 from the gas inlet 204, passes through the gas-liquid mixing unit 205, and is gas-liquid separated, thereby increasing the volume of the gas inside. As a result, the amount of stored liquid is reduced, so that the liquid level can be adjusted by the float valve 224.

  Although the present embodiment has described the ozone gas circulation method, the gas-liquid separation mechanism 202 of the present proposal may be used in a method for generating ozone water that does not use circulation.

  In this example, water was used as the solvent for ozone, but in addition to water, ozone gas was mixed into cultivation nutrient solutions used for hydroponics and the like, medical chemicals, and diluted solvents and waste solutions used for industrial purposes. It can also be made.

  As described above, the gas-liquid separation mechanism is configured by using the proposed gas-liquid separation mechanism lid 211, the float arm 221, and the float 220, thereby providing an ozone water generation system 200 capable of generating high-concentration ozone water. be able to. In this proposal, since the gas-liquid mixing unit 205 is built in the gas-liquid separation mechanism 202 and the liquid flows in the upward direction from the bottom, it is possible to generate ozone water stably and reduce the number of connections. The possibility of leakage can be reduced.

  In addition, by providing a groove around the gas outlet 209 inside the gas-liquid separation mechanism 202 and devising the shape of the float arm 221, water is not discharged to the ozone generator 201 side, and operation stability is improved. I was able to.

  In addition, the float arm 221 is provided with a bent portion, and the float 220 is provided with an anti-tilt mechanism and a connection portion with the float 220 on the outer cylinder side, thereby providing a float valve 224 having excellent operational stability even in a small size. can do.

  In addition, by arranging the bottom of the float 220 to be lower than the gas-liquid mixing unit 205 built in the gas-liquid separation mechanism 202, ozone water can be generated stably for a long time, and ozone gas does not leak outside. An ozone water generation system can be provided.

200 Ozone Water Generation System 201 Ozone Generator 202 Gas-Liquid Separation Mechanism 203 Check Valve 204 Gas Inlet Port 205 Gas-Liquid Mixing Portion 206 Liquid Inlet Port 207 Shrinkage Portion 208 Taper Portion 209 Gas Outlet Port 210 Liquid Outlet Port 211 Gas-Liquid Separation Mechanism lid 212 Gas-liquid separation mechanism housing 213 Projection 214 Gas outlet hole 215 Rib 216 Groove 217 Packing 218 External port 219 T-joint 220 Float 221 Float arm 222 Float plug 223 Float cross-section center 224 Float valve 225 Storage tank 225

Claims (5)

An ozone generator;
A gas-liquid mixing unit that mixes water and ozone gas generated by the ozone generator;
In an ozone water generation system having a gas-liquid separation mechanism for separating ozone water generated by dissolving ozone gas in water and undissolved ozone gas,
The gas-liquid separation mechanism has a liquid inlet, a liquid outlet, a gas inlet, a gas outlet,
And the shape which has the gas-liquid mixing part inside,
The liquid introduction port of the gas-liquid separation mechanism is provided on the bottom surface of the gas-liquid separation mechanism, and introduces liquid into the gas-liquid mixing part upward from the bottom surface. The gas inlet is provided on a side surface of the gas-liquid separation mechanism,
The ozone water generation system according to claim 1, wherein a tip of the tip does not protrude from an outer surface of the gas-liquid separation mechanism.   The ozone water generation system according to claim 1, wherein the gas outlet has a protrusion inside the gas-liquid separation mechanism, and a groove is formed around the protrusion. Float,
A float arm connecting the float and the lid portion of the liquid separation mechanism;
A float valve formed by a float plug that opens and closes the protrusion inside the gas-liquid separation mechanism of the gas outlet,
The ozone water generation system according to claim 3, wherein the float arm has a downward curved shape. The float has a cylindrical shape, a prismatic shape, and an opening at the bottom, and a connection portion of the float arm provided at the top is offset to the outer cylinder side of the gas-liquid separation mechanism from the center of the float cross section. The ozone water generation system according to claim 4.