JP2014004568A - Water treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water treatment apparatus which can increase the concentration of dissolved ozone in ozone water more efficiently.SOLUTION: A water treatment apparatus 10 comprises a water channel 11, and ozone generating means 40 which is provided in the water channel 11 and generates ozone; and produces ozone water by dissolving the ozone generated by the ozone generating means 40 in water. Furthermore, the water treatment apparatus 10 comprises bubble micronizing means 50 which is provided at the downstream side of the ozone generating means 40 and micronizes bubbles containing the ozone generated by the ozone generating means 40. The bubble micronizing means 50 is provided so that an inflow side 50a is located at the part lower than an outflow side 50b.

Description

  The present invention relates to a water treatment apparatus.

  Conventionally, as a water treatment device, there is known an ozone generating means that electrolyzes raw water to generate ozone, and ozone generated by the ozone generating means is dissolved in water to generate ozone water. (For example, refer to Patent Document 1).

  In this patent document 1, the cation in raw water is removed by a water softener, and the anion in the raw water is removed by an anion removing device, thereby suppressing the precipitation and adhesion of the compound to the electrode. It has suppressed that the production capacity of water falls.

JP 2010-209370 A

  By the way, when the raw water is electrolyzed, bubbles containing ozone generated by electrolysis are formed around the electrode in various sizes. And when a big bubble is formed, there exists a possibility that a big bubble may be discharged with a bubble, without melt | dissolving in water.

  That is, in the above-described conventional technology, it is possible to suppress the precipitation and adhesion of the compound to the electrode, thereby suppressing the generation ability of ozone water from decreasing, but the bubbles containing ozone are efficiently converted into water. There is a problem that it cannot be dissolved. For this reason, the above-described conventional technology cannot efficiently increase the dissolved ozone concentration of the ozone water.

  Then, an object of this invention is to obtain the water treatment apparatus which can raise the dissolved ozone concentration of ozone water more efficiently.

  A first feature of the present invention is a water that includes a water channel and an ozone generating unit that is provided in the water channel and generates ozone, and the ozone generated by the ozone generating unit is dissolved in water to generate ozone water. The water treatment apparatus includes a bubble refining unit that is provided on the downstream side of the ozone generation unit, and that refines bubbles containing ozone generated by the ozone generation unit. The gist of the miniaturization means is that the inflow side is located below the outflow side.

  The gist of the second feature of the present invention is that the bubble refining means is formed by providing a base body having a plurality of through holes in the water channel.

  The gist of the third feature of the present invention is that the water treatment apparatus includes a pressurizing means.

  The gist of the fourth feature of the present invention is that the pressurizing means is a pressure regulating valve.

  The gist of the fifth feature of the present invention is that a retention means for retaining water is provided downstream of the ozone generation means.

  The sixth feature of the present invention is summarized in that the water treatment apparatus includes a circulation means for circulating ozone water.

  According to a seventh feature of the present invention, the water channel includes a branched water channel formed upstream of the bubble refining unit, and water in the water channel flows into the bubble refining unit. The gist of the invention is that a valve for switching between a path to be caused to flow and a path to be introduced into the branch water channel is formed.

  The water treatment apparatus according to the present invention includes a bubble refining unit that is provided on the downstream side of the ozone generating unit and that refines bubbles containing ozone generated by the ozone generating unit. The bubbles are refined by the bubble refining means when ozone is generated. Thus, by making the bubbles containing ozone finer, the bubbles can be easily dissolved in water, and the dissolved ozone concentration of ozone water can be increased more efficiently. Further, according to the present invention, the bubble refining means is provided so that the inflow side is located below the outflow side. In this way, by providing the bubble refinement means so that the inflow side is located below the outflow side, the bubbles are made finer by utilizing the phenomenon that bubbles having a specific gravity smaller than water move from the bottom to the top. It can be introduced into the conversion means. As a result, the bubbles are prevented from staying upstream of the bubble refining means, so that the bubbles can be prevented from being introduced into the bubble refining means. That is, it is possible to more efficiently reduce the bubbles by the bubble refining means. Therefore, more bubbles can be refined by the bubble refinement means, and the bubbles can be more efficiently dissolved in water.

It is a figure which shows typically the water treatment apparatus concerning 1st Embodiment of this invention. It is a perspective view which shows typically the refinement | miniaturization means of the water treatment apparatus concerning 1st Embodiment of this invention. It is a figure which shows typically the water treatment apparatus concerning 2nd Embodiment of this invention. It is a figure which shows typically the water treatment apparatus concerning 3rd Embodiment of this invention. It is a figure which shows typically the water treatment apparatus concerning 4th Embodiment of this invention. It is a figure which shows typically the water treatment apparatus concerning 5th Embodiment of this invention. It is a figure which shows typically the water treatment apparatus concerning 6th Embodiment of this invention. It is a figure which shows typically the water treatment apparatus concerning 7th Embodiment of this invention. It is a figure which shows typically the water treatment apparatus concerning 8th Embodiment of this invention.

  In the following plurality of embodiments, similar components are included. Therefore, in the following, common reference numerals are given to those similar components, and redundant description is omitted.

(First embodiment)
The water treatment device 10 according to the present embodiment is a device that purifies raw water such as tap water. The water treatment apparatus 10 includes a water channel 11 through which raw water (water) such as tap water is introduced and an ozone generator (ozone generating means) 40 that is provided in the water channel 11 and generates ozone. The water channel 11 and the ozone generator (ozone generator) 40 are accommodated in a housing (not shown).

  The water channel 11 is provided on the upstream side of the ozone generator (ozone generator) 40, and is described later on the downstream side of the primary water channel 12 through which raw water is introduced and the ozone generator (ozone generator) 40. The secondary side water channel 13 is configured. The primary water channel 12 is provided with a raw water supply unit 20 that supplies raw water. The raw water supply unit 20 includes a raw water supply valve (raw water port sealing means) 22 capable of sealing a raw water port 21 into which raw water flows.

  Further, a supply pump 30 is provided on the upstream side of the raw water supply valve 22 in the primary side water channel 12 to increase the pressure of the raw water and pump it to the downstream side (ozone generator 40).

  And the water pressurized by the supply pump 30 and pumped downstream is introduced into the ozone generator 40 and electrolyzed.

  The ozone generator 40 is disposed between a housing 41, a cathode 42 and an anode 43 accommodated in the housing 41, and the cathode 42 and the anode 43. The inside of the housing 41 is divided into a cathode side channel and an anode side channel. And a conductive anion exchange membrane 44 to be formed. Then, by applying a DC voltage to the cathode 42 and the anode 43, water introduced into the ozone generator 40 is electrolyzed to generate ozone. Ozone generated at this time is mainly dissolved in water, and ozone water is thus generated by dissolving ozone in water.

  As the cathode 42, for example, a conductive metal electrode such as titanium or stainless steel can be used. On the other hand, as the anode 43, for example, a conductive diamond electrode, that is, an electrode formed of a material containing diamond, such as nitrogen or boron, and having conductivity can be used.

  A secondary water channel 13 is formed downstream of the ozone generator (ozone generator) 40, and the ozone water generated by the ozone generator (ozone generator) 40 is the secondary side. It is introduced into the water channel 13.

  The secondary side water channel 13 is provided with a purifying means 60 for purifying ozone water. As the purification means 60, UV irradiation means for irradiating ozone water with ultraviolet rays, activated carbon cartridge filled with activated carbon for decomposing dissolved ozone in contacted ozone water, or the like can be used. The water that has been introduced into the purification means 60 and purified is discharged from the discharge port 70 to the outside of the apparatus.

  In the present embodiment, control of the electrolysis current (electrolysis voltage) applied to the cathode 42 and the anode 43, the opening degree control of the raw water supply valve 22, and the drive control of the supply pump 30 are performed by a control circuit 80 as a control unit. It has become. That is, the cathode 42, the anode 43, the raw water supply valve 22 and the supply pump 30 are electrically connected to the control circuit 80 via the harness H, and a voltage is applied from the control circuit 80 to the cathode 42 and the anode 43 via the harness H. It is to be applied. A control signal is output from the control circuit 80 to the raw water supply valve 22 and the supply pump 30 via the harness H. The control circuit 80 is supplied with power from a power supply 90.

  The water treatment apparatus 10 having such a configuration operates as follows.

  First, an operation unit (not shown) formed in the water treatment apparatus 10 is operated. Then, the raw water supply valve 22 is opened by the control circuit 80, and the supply pump 30 is driven. Then, tap water is introduced into the primary water channel 12 from the raw water inlet 21.

  And the raw | natural water introduce | transduced in the primary side waterway 12 is introduce | transduced into the ozone generator 40 in the state pressurized by the supply pump 30. FIG. In addition, a water softener or an anion removing device may be provided in the primary water channel 12 so that raw water from which cations and anions have been removed may be introduced into the ozone generator 40. If it carries out like this, precipitation and adhesion of the compound to the cathode 42 or the anode 43 can be suppressed, and it will become possible to suppress that the production | generation capability of the ozone water of the ozone generator 40 falls.

  And the water introduced into the ozone generator 40 is electrolyzed by applying a DC voltage to the cathode 42 and the anode 43. Ozone is generated by the electrolysis of water, and ozone water is generated by dissolving the generated ozone in water. The generated ozone is introduced into the secondary side water channel 13.

  At this time, the ozone water introduced into the secondary side water channel 13 moves through the secondary side water channel 13 while decomposing and sterilizing organic matter, and is introduced into the purification means 60.

  And the dissolved ozone dissolved in the ozone water introduced into the purification means 60 is decomposed by UV irradiation of the purification means 60 or contact with activated carbon, and purified water suitable for drinking is generated. And the purified water produced | generated by the purification means 60 is discharged to the exterior of an apparatus from the discharge outlet 70. FIG.

  For example, a filtering device is used as the purifying means, and the dissolved ozone generated in the ozone generator 40 is discharged from the discharge port 70 without being decomposed by the purifying means, and the ozone water is used for sterilization or disinfection. You may make it do.

  By the way, the raw water contains minute components, and when the raw water is electrolyzed, these minute components become bubble nuclei to generate bubbles. In particular, bubbles containing ozone generated by electrolysis are formed around the electrodes (cathode and anode) in various sizes. And when a big bubble is formed, there exists a possibility that a big bubble may be discharged from the discharge outlet 70 with a bubble, without melt | dissolving in water. As described above, when the bubbles are discharged from the discharge port 70 without being dissolved in water, the dissolved ozone concentration of the ozone water cannot be increased, and the generation efficiency of the ozone water cannot be increased. There is.

  Therefore, in the present embodiment, the bubble refining means 50 for refining bubbles containing ozone generated by the ozone generating apparatus (ozone generating means) 40 is provided on the downstream side of the ozone generating apparatus (ozone generating means) 40. .

  In the present embodiment, the bubble refining means 50 is formed by providing the substrate (base body) 51 in which the plurality of through holes 51 a are formed in the secondary side water channel (water channel) 13.

  At this time, if the total surface area is increased by increasing the number of the through holes 51a, the finer bubble can be promoted and the amount of ozone can be increased, so that more through holes 51a can be formed on the substrate (base body). ) 51 is preferable. In the present embodiment, a large number (a plurality) of through holes 51a are formed in the substrate (base body) 51, and the through holes 51a with respect to the surface area of the portion where the through holes 51a of the substrate (base body) 51 are not formed in plan view. The surface area ratio is set to 900 or more.

  The through hole 51a may have any shape, and the diameter may be set to any size. Moreover, you may make it vary the shape and magnitude | size of each through-hole. In addition, the shape and size of the substrate (base) 51 can be appropriately set, and a plurality of substrates (bases) 51 may be arranged. Furthermore, the diameter of the part where the substrate (base body) 51 is disposed in the secondary side water channel (water channel) 13 may be made smaller than the diameter of the other part, for example.

  Furthermore, in this embodiment, as shown in FIG. 2, the bubble refinement means 50 is provided so that the inflow side 50a of the bubble refinement means 50 is located below the outflow side 50b.

  In this way, by providing the bubble refining means 50 so that the inflow side 50a is positioned below the outflow side 50b, the phenomenon that bubbles having a lighter specific gravity than water move from the bottom to the top, Bubbles are introduced into the bubble refining means 50.

  As described above, in this embodiment, the bubble refining means 50 for refining bubbles containing ozone generated by the ozone generator (ozone generator) 40 is provided downstream of the ozone generator (ozone generator) 40. Provided. The bubble refinement means 50 refines bubbles containing ozone formed when ozone is generated. Thus, by making the bubbles containing ozone finer, the bubbles can be easily dissolved in water, and the dissolved ozone concentration of ozone water can be increased more efficiently. As a result, organic matter decomposition and sterilization can be performed more effectively.

  Moreover, according to this embodiment, the bubble refinement | miniaturization means 50 is provided so that the inflow side 50a may be located below the outflow side 50b. In this way, by providing the bubble refining means 50 so that the inflow side 50a is positioned below the outflow side 50b, utilizing the phenomenon that bubbles having a lighter specific gravity than water move from below to above, Bubbles can be introduced into the bubble refinement means 50. As a result, the bubbles are prevented from staying upstream of the bubble refining means 50, and the bubbles can be prevented from being introduced into the bubble refining means 50. That is, by providing the bubble refining means 50 so that the inflow side 50a is positioned below the outflow side 50b, the bubble refining means 50 can perform the finer bubbles more efficiently. Therefore, more bubbles can be refined by the bubble refinement means 50, and the bubbles can be more efficiently dissolved in water.

  In addition, by providing the bubble refining means 50, it is possible to generate ozone water for more efficient sterilization without providing a water softener or anion removing device in the primary water channel 12. Cost reduction can be achieved. Further, by providing the substrate (base body) 51 in which the plurality of through holes 51a are formed in the secondary side water channel (water channel) 13, the bubble miniaturization means 50 is formed, thereby simplifying the configuration. become able to.

(Second Embodiment)
The water treatment apparatus 10A according to the present embodiment basically has the same configuration as the water treatment apparatus 10 of the first embodiment.

  That is, as shown in FIG. 3, the water treatment apparatus 10 </ b> A includes a water channel 11 through which raw water (water) such as tap water is introduced and an ozone generator (ozone generating means) that is provided in the water channel 11 and generates ozone. 40.

  Further, on the downstream side of the ozone generator (ozone generator) 40, a bubble refining means 50 for refining bubbles containing ozone generated by the ozone generator (ozone generator) 40 is provided.

  Also in this embodiment, the bubble miniaturization means 50 is provided so that the inflow side 50a is located below the outflow side 50b.

  Here, the water treatment apparatus 10 </ b> A according to the present embodiment is mainly different from the water treatment apparatus 10 of the first embodiment in that the water treatment apparatus 10 </ b> A includes a pressurizing unit 100.

  The pressurizing means 100 only needs to increase the water pressure in the water channel 11 and may have any structure. For example, a valve, an orifice, a restrictor, or a long pipe can be used. Moreover, since the water pressure in the water channel 11 should just be raised, the pressurization means 100 can be arrange | positioned in arbitrary places.

  In the present embodiment, the pressurizing unit 100 is provided on the downstream side of the bubble refining unit 50 and on the upstream side of the purification unit 60 in the secondary side water channel (water channel) 13.

  Also according to this embodiment described above, the same operations and effects as those of the first embodiment can be achieved.

  Moreover, according to this embodiment, since the water treatment apparatus 10A includes the pressurizing means 100, the water pressure can be increased, and more bubbles containing ozone can be dissolved in water. As a result, the dissolved ozone concentration of the ozone water can be increased, and organic matter decomposition and sterilization can be performed more effectively.

(Third embodiment)
The water treatment apparatus 10B according to the present embodiment has basically the same configuration as the water treatment apparatus 10A of the second embodiment.

  That is, as shown in FIG. 4, a water channel 11 through which raw water (water) such as tap water is introduced and an ozone generator (ozone generating means) 40 that is provided in the water channel 11 and generates ozone are provided. Yes.

  Further, on the downstream side of the ozone generator (ozone generator) 40, a bubble refining means 50 for refining bubbles containing ozone generated by the ozone generator (ozone generator) 40 is provided.

  Also in this embodiment, the bubble miniaturization means 50 is provided so that the inflow side 50a is located below the outflow side 50b.

  And the water treatment apparatus 10B is also provided with the pressurization means 100. FIG.

  Here, the water treatment apparatus 10B according to the present embodiment is mainly different from the water treatment apparatus 10A of the second embodiment in that the pressure regulating valve 101 is used as the pressurizing means 100.

  Furthermore, in this embodiment, at least one detection means 110 is provided.

  The detection means 110 is provided downstream of the bubble refining means 50 in the secondary side water passage (water passage) 13 and upstream of the pressurizing means 100 (pressure regulating valve 101).

  The detection means 110 and the pressure adjustment valve 101 are electrically connected to the control circuit 80 via the harness H.

  The detection unit 110 is a unit that detects water quality, flow rate, and the like. As a water quality sensor, what detects water quality, such as a turbidity sensor, an electrical conductivity sensor, a pH sensor, an ORP sensor, a TDS sensor, and a salinity concentration sensor, can be used, for example.

  And if the control part 80 controls the pressure control valve 101 based on the water quality detected by the detection means 110, ozone water with a more appropriate dissolved ozone concentration can be generated. For example, when the detection means 110 determines that the water quality is poor, the pressure adjustment valve 101 can be controlled to increase the water pressure and increase the dissolved ozone concentration.

  When the detection unit 110 is a dissolved ozone sensor, the dissolved ozone concentration of the ozone water generated by the ozone generator (ozone generation unit) 40 may be detected and fed back to the pressure adjustment valve 101.

  Also according to this embodiment described above, the same operations and effects as those of the second embodiment can be achieved.

  Further, according to the present embodiment, the pressure regulating valve 101 is used as the pressurizing means 100. Therefore, the water pressure can be made variable. At this time, if the detection means 110 is provided, the dissolved ozone concentration of the ozone water can be controlled by the water quality and flow rate detected by the detection means 110. That is, ozone water having a more appropriate dissolved ozone concentration can be generated according to the water quality.

(Fourth embodiment)
The water treatment apparatus 10C according to the present embodiment basically has the same configuration as the water treatment apparatus 10 of the first embodiment.

  That is, as shown in FIG. 5, a water channel 11 through which raw water (water) such as tap water is introduced and an ozone generator (ozone generating means) 40 that is provided in the water channel 11 and generates ozone are provided. Yes.

  Further, on the downstream side of the ozone generator (ozone generator) 40, a bubble refining means 50 for refining bubbles containing ozone generated by the ozone generator (ozone generator) 40 is provided.

  Also in this embodiment, the bubble miniaturization means 50 is provided so that the inflow side 50a is located below the outflow side 50b.

  Here, the water treatment apparatus 10 </ b> C according to the present embodiment is mainly different from the water treatment apparatus 10 of the first embodiment in that the retention means for retaining water downstream of the ozone generation apparatus (ozone generation means) 40. 120 is provided.

  In the present embodiment, ozone water and bubbles generated by the ozone generator (ozone generator) 40 are temporarily stored in the retention means 120 and then introduced into the purification means 60.

  The retention means 120 only needs to extend the residence time of ozone water and bubbles generated by the ozone generator (ozone generation means) 40, and by meandering the secondary water channel (water channel) 13 up and down. The staying means 120 may be formed.

  Also according to this embodiment described above, the same operations and effects as those of the first embodiment can be achieved.

  Further, according to the present embodiment, the retention means 120 for retaining water is provided on the downstream side of the ozone generator (ozone generation means) 40. As a result, the residence time of bubbles containing ozone and ozone water is increased, and bubbles are easily dissolved in water. That is, by providing the retention part 120, the dissolved ozone concentration of the ozone water can be increased. In addition, since the residence time becomes longer, the time that ozone water comes into contact with the organic matter and the bacteria becomes longer, and there is an advantage that water quality purification can be promoted.

(Fifth embodiment)
The water treatment apparatus 10D according to the present embodiment basically has the same configuration as the water treatment apparatus 10 of the first embodiment.

  That is, as shown in FIG. 6, a water channel 11 through which raw water (water) such as tap water is introduced and an ozone generator (ozone generating means) 40 that is provided in the water channel 11 and generates ozone are provided. Yes.

  Further, on the downstream side of the ozone generator (ozone generator) 40, a bubble refining means 50 for refining bubbles containing ozone generated by the ozone generator (ozone generator) 40 is provided.

  Also in this embodiment, the bubble miniaturization means 50 is provided so that the inflow side 50a is located below the outflow side 50b.

  Here, the water treatment apparatus 10D according to the present embodiment is mainly different from the water treatment apparatus 10 of the first embodiment in that the water treatment apparatus 10D includes a circulation means 130 for circulating ozone water. .

  Specifically, the circulation means 130 is configured by connecting the circulation path 131 to the secondary side water path (water channel) 13 and providing the circulation pump 132 in the circulation path 131. The circulation pump 132 is also electrically connected to the control circuit 80 via the harness H.

  Further, in the present embodiment, both the upstream side and the downstream side of the circulation path communicate with the downstream side of the bubble refining means 50 and the upstream side of the purification means 60 in the secondary side water path (water channel) 13. . That is, ozone water is circulated on the downstream side of the bubble refining means 50.

  Also according to this embodiment described above, the same operations and effects as those of the first embodiment can be achieved.

  Further, according to the present embodiment, the water treatment device 10D includes the circulation means 130 that circulates ozone water. The ozone dissolution time can be earned by the circulation of ozone water by the circulation means 130. As a result, the dissolved ozone concentration of the ozone water can be increased. Further, since the residence time is increased by the circulation, there is an advantage that the time during which the ozone water comes into contact with the organic matter and the bacteria becomes longer, and the water purification can be promoted.

  Moreover, if a detection means is provided like the said 3rd Embodiment, it can control so that it may become an appropriate flow volume of ozone water according to water quality and flow volume.

(Sixth embodiment)
The water treatment device 10E according to the present embodiment basically has the same configuration as the water treatment device 10D of the fifth embodiment.

  That is, as shown in FIG. 7, a water channel 11 through which raw water (water) such as tap water is introduced and an ozone generator (ozone generating means) 40 that is provided in the water channel 11 and generates ozone are provided. Yes.

  Further, on the downstream side of the ozone generator (ozone generator) 40, a bubble refining means 50 for refining bubbles containing ozone generated by the ozone generator (ozone generator) 40 is provided.

  Also in this embodiment, the bubble miniaturization means 50 is provided so that the inflow side 50a is located below the outflow side 50b.

  And the water treatment apparatus 10E is also provided with the circulation means 130. FIG.

  Here, the water treatment apparatus 10E according to this embodiment is mainly different from the water treatment apparatus 10D of the fifth embodiment in that ozone water is circulated upstream of the bubble refining means 50 by the circulation means 130. It is in the point.

  By doing so, the ozone water circulated by the circulation means 130 passes through the bubble refining means 50 again, so that the bubble refining can be further promoted. At this time, it is preferable to set the flow rate to be faster because a higher flow rate can promote the refinement of bubbles.

  Also according to this embodiment described above, the same operations and effects as those of the fifth embodiment can be obtained.

  Further, according to the present embodiment, the ozone water is circulated upstream of the bubble refining means 50 by the circulation means 130. Therefore, since the ozone water circulated by the circulation means 130 passes through the bubble refining means 50 again, the bubble refining can be further promoted. As a result, the dissolved ozone concentration of ozone water can be increased more efficiently.

(Seventh embodiment)
The water treatment device 10F according to the present embodiment has basically the same configuration as the water treatment device 10 of the first embodiment.

  That is, as shown in FIG. 8, a water channel 11 through which raw water (water) such as tap water is introduced and an ozone generator (ozone generating means) 40 that is provided in the water channel 11 and generates ozone are provided. Yes.

  Further, on the downstream side of the ozone generator (ozone generator) 40, a bubble refining means 50 for refining bubbles containing ozone generated by the ozone generator (ozone generator) 40 is provided.

  Also in this embodiment, the bubble miniaturization means 50 is provided so that the inflow side 50a is located below the outflow side 50b.

  Here, the water treatment apparatus 10F according to the present embodiment is mainly different from the water treatment apparatus 10 of the first embodiment in that the water channel includes a branched water channel formed on the upstream side of the bubble miniaturization means 50. There is in point.

  In this embodiment, the drainage channel 141 as a branch channel is formed in the secondary side channel (water channel) 13, and the electromagnetic valve 140 is provided in the drainage channel 141. Further, a check valve 142 is provided at a site before the secondary side water channel (water channel) 13 branches. The electromagnetic valve 140 is also electrically connected to the control circuit 80 via the harness H.

  Then, by controlling the opening and closing of the electromagnetic valve 140, the path for allowing the water in the secondary side water channel (water channel) 13 to flow into the bubble refining means 50 and the path for flowing into the drain channel (branch water channel) 141 are switched. I have to. That is, the electromagnetic valve 140 corresponds to a valve for switching the path. In addition, you may make it switch a path | route using the three-way valve for flow path switching.

  Further, in the present embodiment, the drainage channel (branch channel) 141 and the secondary side channel (water channel) 13 where the bubble miniaturization means 50 is provided extend in a straight line in the vertical direction. The road (branch waterway) 141 is branched.

  Also according to this embodiment described above, the same operations and effects as those of the first embodiment can be achieved.

  Further, according to the present embodiment, the water channel includes the branch water channel formed on the upstream side of the bubble miniaturization means 50. That is, a drainage channel 141 as a branch channel is formed in the secondary side channel (water channel) 13, and the electromagnetic valve 140 is provided in the drainage channel 141. Furthermore, a check valve 142 is provided at a site before the secondary side water channel (water channel) 13 branches. As a result, when the water flow is stopped, the water in the secondary side water channel (water channel) 13 extending up and down due to the drop in the water level flows back and can be drained from the drain channel 141. That is, the impurities accumulated in the vicinity of the bubble refining means 50 can be removed by the back flow of water in the secondary side water channel (water channel) 13 extending vertically. At this time, the cleaning flow is drained from the drainage channel 141 by opening the electromagnetic valve 140. Thus, by performing reverse cleaning and removing impurities accumulated in the vicinity of the bubble refining means 50, it is possible to prevent the life of the bubble refining means 50 from being shortened, and to extend the life of the apparatus. It becomes possible to plan.

  Further, according to the present embodiment, since a special back cleaning pump is not required, the cost can be reduced while simplifying the configuration.

  In the present embodiment, the drainage channel (branch channel) 141 and the secondary side channel (water channel) 13 where the bubble miniaturization means 50 is provided extend in a straight line in the vertical direction. The road (branch waterway) 141 is branched. Therefore, it is easy to perform reverse cleaning, and impurities deposited near the bubble refining means 50 can be discharged from the drainage channel (branch channel) 141 more quickly.

(Eighth embodiment)
The water treatment device 10G according to the present embodiment has basically the same configuration as the water treatment device 10F of the seventh embodiment.

  That is, as shown in FIG. 9, a water channel 11 through which raw water (water) such as tap water is introduced and an ozone generator (ozone generating means) 40 that is provided in the water channel 11 and generates ozone are provided. Yes.

  Further, on the downstream side of the ozone generator (ozone generator) 40, a bubble refining means 50 for refining bubbles containing ozone generated by the ozone generator (ozone generator) 40 is provided.

  Also in this embodiment, the bubble miniaturization means 50 is provided so that the inflow side 50a is located below the outflow side 50b.

  The water channel includes a branched water channel formed on the upstream side of the bubble refining means 50. That is, a drainage channel 141 as a branch channel is formed in the secondary side channel (water channel) 13, and the electromagnetic valve 140 is provided in the drainage channel 141. Furthermore, a check valve 142 is provided at a site before the secondary side water channel (water channel) 13 branches.

  Here, the main difference between the water treatment apparatus 10G according to the present embodiment and the water treatment apparatus 10F of the seventh embodiment is that a pump 150 for backwashing is provided.

  In the present embodiment, a reverse cleaning pump 150 is provided downstream of the bubble refining means 50 in the secondary side water channel (water channel) 13.

  Also according to this embodiment described above, the same operations and effects as those of the seventh embodiment can be achieved.

  Further, according to the present embodiment, since the back cleaning pump 150 is provided, the back cleaning can be performed more smoothly.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made.

  For example, the pressurizing means, the staying means, the circulating means, the branch water channel, the switching valve and the like shown in the above embodiments can be arbitrarily combined.

  In addition, the electrodes, purification means, and other detailed specifications (shape, size, layout, etc.) can be changed as appropriate.

10, 10A, 10B, 10C, 10D, 10E, 10F, 10G Water treatment device 40 Ozone generator (ozone generating means)
DESCRIPTION OF SYMBOLS 50 Refinement means 50a Inflow side 50b Outflow side 100 Pressurization means 101 Pressure adjustment valve 110 Detection means 120 Residence means 130 Circulation means 140 Solenoid valve (Valve which switches a path)
141 Drainage channel (branch channel)

Claims (7)

A water treatment apparatus comprising: a water channel; and ozone generating means provided in the water channel for generating ozone, wherein ozone generated by the ozone generating means is dissolved in water to generate ozone water,
The water treatment apparatus is provided on the downstream side of the ozone generating means, and includes a bubble refining means for refining bubbles containing ozone generated by the ozone generating means,
The water treatment apparatus is characterized in that the bubble refining means is provided such that the inflow side is located below the outflow side.   The water treatment apparatus according to claim 1, wherein the bubble refining means is formed by providing a base in which a plurality of through holes are formed in a water channel.   The water treatment apparatus according to claim 1, wherein the water treatment apparatus includes a pressurizing unit.   The water treatment apparatus according to claim 3, wherein the pressurizing means is a pressure regulating valve.   The water treatment apparatus according to any one of claims 1 to 4, wherein a retention unit that retains water is provided on a downstream side of the ozone generation unit.   The said water treatment apparatus is provided with the circulation means to circulate ozone water, The water treatment apparatus of any one of Claims 1-5 characterized by the above-mentioned.   The water channel includes a branch water channel formed on the upstream side of the bubble refining unit, and the water channel allows water in the water channel to flow into the bubble refining unit and the branch water channel. The valve which switches a path | route is formed, The water treatment apparatus of any one of Claims 1-6 characterized by the above-mentioned.

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