JPH08117536A - Air washing apparatus - Google Patents

Abstract

PURPOSE: To prevent the mixing of ozone with air to be washed caused by dissolved ozone in washing water. CONSTITUTION: In an air washing apparatus equipped with a water treatment part 11 supplying ozone O3 to washing water W to purify the washing water W and a water sprinking and washing part 3 sprinkling the washing water W treated in the water treatment part 11 over air A to wash the air A, a dissolved ozone removing means 17 forcibly separating and removing dissolved ozone in the treated washing water W is provided to the water supply passage 16 sending the treated washing water A to the water sprinking and washing part 3 from the water treatment part 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaning apparatus, and more particularly to a water treatment section for supplying ozone to cleaning water to purify the cleaning water, and the cleaning water treated in this water treatment section into the air. The present invention relates to an air cleaning device cleaning water including a water spray cleaning unit that sprays water to clean air.

[0002]

2. Description of the Related Art Conventionally, in this type of air cleaning device,
As shown in FIG. 7, when the water treatment unit 11 is constituted by the ozone dissolution tank 12 and the diffuser pipe 14 that diffuses the ozone O ₃ into the cleaning water W in the tank, water in the diffused ozone is The exhausted ozone O ₃ (that is, surplus ozone) that floats up to the top of the ozone dissolution tank 12 from the top of the tank to the exhaust passage 22.
And the waste ozone O ₃ is discharged from the ozone dissolving tank 12 as a water treatment unit to the sprinkling cleaning unit 3 side together with the treated cleaning water W purified by the ozone dissolving tank 12. Some have been prevented from leaking.

That is, the waste ozone O ₃ is the treated cleaning water W.
When it is sent together with the sprinkling / cleaning unit 3, the exhaust ozone O ₃ may be mixed into the ventilation air A to be cleaned in the sprinkling / cleaning unit 3, and this ozone mixing may be inconvenient for the purpose of the post-cleaning air A. On the other hand, as described above, the outflow of exhausted ozone from the water treatment section 11 is prevented, so that the mixing of ozone into the air A to be cleaned is prevented.

In FIG. 7, 3a is a water treatment section 11.
A receiving tank for receiving the treated cleaning water W from the same and receiving the sprinkling cleaning water W used for cleaning the air A, 6
Is the ventilation air A for cleaning the stored cleaning water W in the water receiving tank 3a.
On the other hand, sprinklers 10 for sprinkling water are return paths for returning the cleaning water W from the water receiving tank 3a to the ozone dissolving tank 12 so that the cleaning water W can be repurified and reused.

[0005]

However, in the above-mentioned conventional apparatus, the ozone dissolving tank 12 is formed by spontaneous floating in the bubble state.
Although the exhausted ozone O ₃ reaching the top of the water can be prevented from flowing out to the water spray cleaning unit 3, the ozone flowing out from the ozone dissolving tank 12 to the water spray cleaning unit 3 together with the treated cleaning water W in the state of being dissolved in water is There is a problem that the dissolved ozone that exists and is discharged from the cleaning water W in the water spray cleaning unit 3 and a large amount of ozone is mixed into the cleaning target air A.

Further, in order to enhance the air cleaning effect in the water spray cleaning unit 3, it is effective to increase the ratio of the amount of water spray to the amount of air ventilation in the water spray cleaning unit 3, but due to the outflow of dissolved ozone as described above. If ozone is mixed in the air and the ratio of the amount of water sprinkled is increased, the concentration of ozone mixed in the air will be even higher.Therefore, the amount of water sprinkled will be limited in applications where the permissible ozone concentration of air after cleaning is determined. Due to this restriction, there is a problem that the air cleaning effect is also limited.

In view of the above circumstances, the object of the present invention is as follows. The object of the first invention is to prevent ozone from being mixed into the air to be cleaned due to dissolved ozone flowing out from the water treatment section. The object of the second invention is to simplify the device configuration for separating dissolved ozone in preventing ozone contamination. The object of the third invention is to simplify the device configuration for separating dissolved ozone in preventing ozone contamination, and to easily and stably supply cleaning water from the water treatment section to the sprinkling and cleaning section. There is a point in doing so. An object of the fourth invention is to simplify the structure of the device for separating dissolved ozone, and at the same time prevent the mixture of ozone and the mixture of other gas with the air to be cleaned. The object of the fifth invention is to prevent the mixing of ozone and prevent the mixing of other gases into the air to be cleaned, while making it possible to easily and stably supply the cleaning water from the water treatment section to the sprinkling and cleaning section. In point. The object of the sixth invention is to prevent the mixing of ozone and to prevent mixing of other gases into the air to be cleaned, while further simplifying the device configuration for separating dissolved ozone as compared with the fourth invention. It is in.

[0008]

[Means for Solving the Problems]

[First Invention] The first invention is to wash the air by supplying ozone to the washing water to purify the washing water, and spraying the washing water treated by the water treating portion into the air to wash the air. The present invention relates to an air cleaning device including a sprinkling and cleaning unit, and its characteristic configuration is to force dissolved ozone in water from the treated cleaning water to a water supply passage that sends treated cleaning water from the water treatment unit to the sprinkling and cleaning unit. There is provided a dissolved ozone removing means for selectively separating and removing.

[Second Invention] A second invention of the present invention is to specify a device configuration suitable for carrying out the first invention.
The characteristic configuration is such that the dissolved ozone removing means forcibly separates the dissolved ozone from the treated cleaning water by directly contacting the replacement gas supplied by the air supply means with the treated cleaning water. There is something.

[Third Invention] A third invention of the present invention specifies a device configuration suitable for carrying out the first invention.
The characteristic configuration is that the dissolved ozone removing means dissolves the treated cleaning water by bringing the replacement gas supplied by the air supply means and the treated cleaning water into contact with each other through a selective membrane which allows only gas passage. This is because the ozone is forcibly separated.

[Fourth Invention] The fourth invention specifies a device configuration suitable for carrying out the first invention.
The characteristic configuration is that the dissolved ozone removing means forcibly separates the dissolved ozone from the treated cleaning water by directly exposing the treated cleaning water to the vacuum space formed by the suction means. It is in.

[Fifth Invention] A fifth invention of the present invention specifies a device configuration suitable for carrying out the first invention,
The characteristic configuration is that the dissolved ozone removing means exposes the treated cleaning water through a selective membrane that allows only gas passage to the vacuumed space formed by the suction means, so that the dissolved ozone is removed from the treated cleaning water. It is in the structure to forcibly separate.

[Sixth Invention] A sixth invention is to specify a suitable device configuration in the implementation of the first invention.
The characteristic configuration is that the dissolved ozone removing means is configured to forcibly separate the dissolved ozone from the treated cleaning water by heating the treated cleaning water by the heating means.

[0014]

[Action]

[Operation of the First Invention] In the first invention, the ozone dissolved in the water flows out of the water treatment section together with the treated cleaning water into the water supply channel to the sprinkling and cleaning section. The removing means forcibly separates and removes the dissolved ozone in the treated cleaning water from the treated cleaning water, and thereby sends the treated cleaning water in which the dissolved ozone is separated and removed to the sprinkling and cleaning section.

[Operation of the Second Aspect of the Invention] In the second aspect of the present invention, by directly contacting the replacement gas (for example, air) supplied by the air supply means with the treated cleaning water, As a phenomenon of equilibrium of gas partial pressure between the supplied replacement gas and the gas region, the replacement gas is dissolved in the treated cleaning water in the form of replacing part of the dissolved ozone,
As a result, the substituted dissolved ozone is released from the water of the treated cleaning water into the gas region and separated from the treated cleaning water.

[Operation of Third Invention] In the third invention, the replacement gas supplied by the air supply means and the treated cleaning water are supplied.
By bringing them into contact with each other through a selective membrane that allows only gas passage, as a phenomenon of equilibrium of gas partial pressure between the treated cleaning water in water and the gas region of the supplied replacement gas through the selective membrane. , The replacement gas is dissolved in the treated cleaning water in the form of replacing a part of the dissolved ozone through the selective membrane, whereby the substituted dissolved ozone is released from the water of the treated cleaning water into the gas region through the selective membrane. And separate from the treated wash water.

[Operation of Fourth Aspect] In the fourth aspect of the present invention, the treated cleaning water is directly exposed to the vacuumed space formed by the suction means, so that the water between the treated cleaning water and the vacuumed space is separated. As an equilibrium phenomenon of the gas partial pressure in the above, dissolved ozone is released from the water of the treated cleaning water into the vacuum space and separated from the treated cleaning water.

[Operation of the Fifth Aspect of the Invention] In the fifth aspect of the present invention, the treated cleaning water is exposed through the selective membrane which allows only gas passage, so that the treated cleaning water is submerged between the water and the vacuum space. As an equilibrium phenomenon of gas partial pressure through the selective membrane, dissolved ozone is released from the water for the treated cleaning water into the vacuum space through the selective membrane and separated from the treated cleaning water.

[Operation of the Sixth Invention] In the sixth invention, the treated cleaning water is heated by the heating means to reduce the gas solubility in the treated cleaning water. Dissolved ozone is released and separated from the treated wash water.

[0020]

【The invention's effect】

[Effect of the first invention] According to the first invention, the treated cleaning water in which the dissolved ozone in the water is forcibly separated and removed is sent to the sprinkling / cleaning unit. It is possible to effectively suppress the mixture of ozone into the air.

In addition, since it is possible to suppress the mixing of ozone into the air due to the release of dissolved ozone in this way, the ozone concentration of the air after cleaning can be kept below the allowable value, but the amount of water sprayed relative to the amount of air ventilation in the water spray cleaning part can be reduced. By increasing the ratio as compared with the conventional one, it is possible to obtain a higher air cleaning effect.

[Effect of Second Invention] According to the second invention,
Dissolved ozone is forcibly separated by directly contacting the treated cleaning water and the gas for substitution, so as another form of forced separation, the treated cleaning water and the gas for substitution are contacted and dissolved through a selective membrane. Compared to separating ozone, it does not require a selective membrane, and it dissolves by exposing treated cleaning water to the vacuumed area to separate dissolved ozone. The device configuration for ozone separation can be simplified.

[Effect of Third Invention] According to the third invention,
Similar to the above-mentioned first invention, the treated cleaning water and the replacement gas are brought into contact with each other to forcibly separate the dissolved ozone. Therefore, as another forced separation mode, the treated cleaning water is exposed to a vacuum region. As compared with the case of separating dissolved ozone, it is possible to simplify the apparatus configuration for separating dissolved ozone by eliminating the need for forming a vacuum space by the suction means.

Further, in the third aspect of the present invention, since the treated cleaning water and the replacement gas are brought into contact with each other through the selective membrane, the route for feeding the treated cleaning water from the water treatment section to the sprinkling cleaning section is selected by the selective membrane. This makes it possible to maintain a closed system, which makes it possible to facilitate the supply of cleaning water from the water treatment section to the sprinkling and cleaning section, as compared to separating the dissolved ozone by directly contacting the treated cleaning water and the replacement gas. It can stabilize.

[Effect of Fourth Invention] According to the fourth invention,
Since the dissolved ozone is forcibly separated by exposing the treated cleaning water to a vacuum space, as a alternative forced separation mode, the dissolved ozone is replaced with the replacement gas to separate the dissolved ozone, as compared with the replacement gas. Can be dissolved in the treated cleaning water newly in the form of replacing ozone, and the dissolved replacement gas can be prevented from being released into the air to be cleaned due to the water spray in the water spray cleaning section. It is possible to properly clean the air to be cleaned in the sprinkling and cleaning unit while suppressing the release and mixing of ozone as well as the release and mixing of other gases.

Further, in the fourth aspect of the present invention, since the treated cleaning water is directly exposed to the vacuum space, the selective membrane is not required as compared with the case where the treated cleaning water is exposed to the vacuum space through the selective membrane. Therefore, the device configuration for separating dissolved ozone can be simplified.

[Effects of the Fifth Invention] According to the fifth invention,
Similarly to the above-mentioned fourth invention, the treated cleaning water is exposed to the vacuum space to forcibly separate the dissolved ozone. Therefore, as another forced separation mode, the dissolved ozone is replaced with the replacement gas to dissolve the dissolved ozone. Compared to separation, the air to be cleaned can be appropriately washed in a state where the emission and mixing of ozone as well as the emission and mixing of other gases are suppressed in the sprinkling and cleaning unit.

Further, in the fifth aspect of the present invention, since the treated cleaning water is exposed to the vacuum space through the selective membrane, the feeding passage of the treated cleaning water from the water treatment section to the sprinkling cleaning section is closed by the selective membrane. The cleaning water can be maintained in the system, which can facilitate and stabilize the supply of the cleaning water from the water treatment section to the sprinkling cleaning section as compared with the case where the treated cleaning water is directly exposed to the vacuum space.

[Effect of Sixth Invention] According to the sixth invention,
Since the treated cleaning water is heated to forcibly separate dissolved ozone, the dissolved ozone and the replacement gas are replaced and dissolved in the same manner as in the case where the treated cleaning water is exposed to a vacuum space to separate the dissolved ozone. Compared with the case of separating ozone, the air to be cleaned can be appropriately cleaned in a state in which the discharge and mixing of ozone as well as the discharge and mixing of other gases are also suppressed in the water spray cleaning section.

Further, as compared with the form in which the treated cleaning water is exposed to the vacuum space to separate the dissolved ozone, it is not necessary to form the vacuum space by the suction means, and the device configuration for separating the dissolved ozone is simplified. obtain.

[0031]

【Example】

[First Embodiment] In FIG. 1, reference numeral 1 denotes a room to be purified such as a clean room or a patient room. The indoor air A taken out from the room to be purified 1 through a return air duct 2 is introduced to a cleaning device 3 for cleaning. Then, the cleaned air A is returned to the purification target chamber 1 by the air supply fan 4 through the air supply duct 5 to keep the purification target chamber 1 in a clean state.

The washing device 3 constitutes a sprinkling washing part for washing the air A by sprinkling water, and inside the washing device 3, the washing water W is sprinkled on the ventilation air (air from the room) A by the sprinkler 6. Then, the bacteria and odorous components in the ventilation air A are captured in the cleaning water W to disinfect and deodorize the ventilation air A.
The sterilization / deodorization air A is sent from the cleaning device 3 to the air supply duct 5 after the water drops scattered on the air flow are captured and removed by the eliminator 7.

The water W for washing, which has been made to act on the air A by spraying water, and the water droplets of the water W for washing captured by the eliminator 7, are received by the water receiving pan 8 at the bottom of the washer 3, and from this water receiving pan 8. , To the water treatment unit 11 via the return path 10 with the filter 9 interposed.

The water treatment section 11 receives a cleaning water W from the return passage 10 (that is, the cleaning water W that has captured bacteria and odorous components), and an ozone generator 13.
The ozone supply nozzle 14 supplies ozone O ₃ supplied from the inside of the purification treatment tank 12 to the stored water in the purification treatment tank 12. In the water treatment section 11, the purification treatment of the cleaning water W is performed inside the purification treatment tank 12. In, the bacteria and odor components in the wash water are sterilized and deodorized by supplying ozone O ₃ .

Cleaning water W sent from the purification treatment tank 12
Is supplied to the sprinkler 6 of the washer 3 again as the treated cleaning water in the water treatment section 11 by the circulation pump 15 through the water supply channel 16. The water supply channel 16 contains the treated cleaning water W in the water. Dissolved ozone (that is, dissolved in the cleaning water W in the purification treatment tank 12 and treated in the dissolved state)
At the same time, the dissolved ozone removing means 17 for forcibly separating and removing (the ozone flowing out from the purification treatment tank 12) from the treated cleaning water W is provided.

The dissolved ozone removing means 17 is a separation tank 1 for receiving the treated cleaning water W from the purification treatment tank 12.
8 and a replacement air supply nozzle 20 for supplying the replacement air a supplied by the air supply pump 19 into the stored water in the separation tank 18, and in the portion near the upper end of the separation tank 18, from the purification treatment tank 12 The upstream side water supply channel 16a for introducing the treated cleaning water W of No. 1 into the separation tank 18 is connected, and the treated cleaning water from the separation tank 18 to the sprinkler 6 of the cleaning device 3 is connected to the lower end portion of the separation tank 18. A downstream side water supply passage 16b for discharging W is connected, and an exhaust passage 21 for discharging separated ozone O ₃ and surplus replacement air a from the separation tank 18 is connected to the upper end of the separation tank 18. is there.

That is, in the separation tank 18, in the descending flow process of the water in the tank, the treated cleaning water W containing dissolved ozone is
By directly contacting the replacement air a supplied by the replacement air supply nozzle 20 with the replacement air a,
Is dissolved in the treated cleaning water W in the form of substituting a part of the dissolved ozone, and the substituted dissolved ozone is separated from the treated cleaning water W in the form of bubbles, whereby the upper end of the separation tank 18 in the form of bubbles. Ozone O ₃ that collects in the above portion is collected in the form of bubbles in the excess replacement air a that collects in the upper end of the separation tank 18.
At the same time, it is led out from the exhaust passage 21 to separate and remove dissolved ozone from the treated cleaning water W.

Then, the treated cleaning water W from which the dissolved ozone is forcibly separated and removed in this way is sent to the sprinkler 6 of the scrubber 3 via the downstream water supply passage 16b and used for air cleaning. It is prevented that a large amount of dissolved ozone is released from the treated cleaning water W and ozone O ₃ having a concentration higher than the allowable concentration is mixed in the air A returned to the purification target chamber 1.

A part of the mixture of ozone O ₃ and the replacement air a drawn out from the separation tank 18 through the exhaust passage 21 is exhausted outside the system, and the other part is returned to the ozone generator 13 to generate ozone. It is reused as the raw material gas.

In the present example, the cleaning treatment water W is sent from the purification treatment tank 12 together with the ozone O _{3 in} a bubble state (that is, ozone reaching the upper end of the purification treatment tank 12 in the bubble state). In some cases, this bubble ozone O ₃ is also separated from the treated cleaning water W by being led out of the exhaust passage 21 together with the separated and dissolved ozone in the separation tank 18 from the treated cleaning water W.
As shown by the broken line in the figure, an exhaust passage 22 for bubble ozone is connected to the upper end portion of the purification treatment tank 12, so that ozone O ₃ reaching the upper end portion of the purification treatment tank 12 in the bubble state remains as dissolved ozone. Separately, the exhaust passage 22 for this bubble ozone
It is also possible to adopt a configuration in which it is separated and removed from the treated cleaning water W by being discharged from.

On the other hand, the cleaning device 3 has a structure in which the ventilation direction of the air A is set to be horizontal, and the eliminator 7 is made to collide with and capture the constituent plate (water droplets in the air flow) against this lateral ventilation. A vertical eliminator is adopted in which the plate) is in a vertical position and the captured water drops flow down to the constituent plates.

That is, as another cleaning device configuration, as shown in FIG. 7, in the configuration in which the ventilation direction of the air A is upward and the configuration plate of the eliminator 7 is disposed in a horizontal position above the sprinkling point, the configuration plate is arranged. The trapped water droplets of the above are prevented from falling by the upward air flow and grow while keeping the adhered state to the constituent plate, and when they drop at a stage where they have grown to a certain degree, they become fine water droplets in the air flow and scatter. Further, since the fine water droplets separated by the airflow from the large-grown water droplets may be scattered, the scattered fine water droplets may pass through the eliminator 7. Therefore, the treated cleaning water W per unit time There are restrictions that the amount of water sprayed cannot be increased so much and that the air velocity in the cleaning device cannot be increased too much.

In this respect, as described above, in the case of the cleaning device configuration of the present example which employs the vertical eliminator 7 with the lateral air flow, the water droplets captured by the eliminator component plate are quickly transmitted through the component plate without being blocked by the air flow. Since it is eliminated by flowing down into the air, it is possible to increase the amount of the treated cleaning water W sprayed per unit time, thereby enhancing the cleaning effect on the ventilation air A, and increasing the air flow velocity in the cleaning device. Because it can be done, the washer 3
By increasing the spray amount of the treated cleaning water W per unit area in a form of reducing the cross-sectional area of the air passage (in short, increasing the spray density), the cleaning of the ventilation air A is also performed. The effect can be enhanced.

[Second Embodiment] As another structural example of the dissolved ozone removing means 17, as shown in FIG. 2, the separation container 18 is filled with the replacement air a by supplying the replacement air a by an air supply pump 19. By forming a zone, and spraying the treated cleaning water W from the purification treatment tank 12 by the sprinkler 23 on the area filled with the replacement air a in this container,
The replacement air a and the treated cleaning water W may be brought into direct contact with each other to separate the dissolved ozone from the treated cleaning water W in the form of replacing the dissolved ozone with the replacement air a.

In FIG. 2, reference numeral 16b designates a downstream side water supply channel for sending the treated cleaning water W, which is separated and removed from the dissolved ozone and accumulated in the lower end portion of the separation container 18, to the sprinkler 6 of the sprinkling and cleaning section 3, and 21 Is an exhaust path for discharging the separated ozone O ₃ and the surplus replacement air a.

[Third Embodiment] As another structural example of the dissolved ozone removing means 17, as shown in FIG. 3, the inside of the separation container 18 is covered with a gas region 18 by a selective membrane 24 which allows only gas to pass therethrough.
a and the water area 18b, and the replacement air a is supplied to the gas area 18a by the air supply pump 19 and the treated cleaning water W from the purification tank 12 is supplied to the water area 18b. , The replacement air a and the treated cleaning water W are brought into contact with each other through the selective film 24, and the dissolved ozone is replaced with the replacement air a through the selective film 24 from the treated cleaning water W to the gas region 18a side. You may make it separate.

In FIG. 3, reference numeral 16b denotes a downstream side water supply channel for delivering the treated cleaning water W from which the dissolved ozone has been separated and removed from the water area 18b and sending it to the sprinkler 6 of the sprinkling and cleaning section 3, and
Reference numeral 21 is an exhaust passage for discharging the separated ozone O ₃ and the surplus replacement air a from the gas region 18a.

[Fourth Embodiment] As another structural example of the dissolved ozone removing means 17, as shown in FIG. 4, the inside of the separation container 18 is made into a vacuum space s by an intake pump 25, and
By sprinkling the treated cleaning water W from the purification treatment tank 12 by the sprinkler 24 on the vacuum space s in this tank,
The treated cleaning water W is directly exposed to the vacuum space s, whereby dissolved ozone is released from the water of the treated cleaning water W into the vacuum space s and separated from the treated cleaning water W. Good.

In the configuration example shown in FIG. 4, the separated ozone O ₃ is discharged from the separation container 18 by the intake pump 25. Reference numeral 16b is a downstream water supply passage for sending the treated cleaning water W, which is separated and removed from the dissolved ozone and accumulated at the lower end of the separation container 18, to the sprinkler 6 of the sprinkling and cleaning unit 3.

[Fifth Embodiment] As another example of the structure of the dissolved ozone removing means 17, as shown in FIG. 5, the interior of the separation container 18 is provided with a space 18 by a selective membrane 24 which allows only gas to pass therethrough.
a and the water area 18b, and the space area 18a is made into a vacuum space s by the intake pump 25, and the treated cleaning water W from the purification treatment tank 12 is supplied to the water area 18b, whereby the selective membrane is formed. In the form in which the treated cleaning water W is exposed to the vacuumized space s via 24, the dissolved ozone is released from the water of the treated cleaning water W into the vacuumed space s via the selective film 24, and the treated ozone is removed from the treated cleaning water W. You may make it separate.

In the configuration example shown in FIG. 5, the separated ozone O ₃ is discharged from the space area 18a by the intake pump 25. Further, 16b is a downstream side water supply passage for leading the treated cleaning water W from which dissolved ozone has been separated and removed from the water area 18b and sending it to the sprinkler 6 of the sprinkling and cleaning section 3.

[Sixth Embodiment] As another structural example of the dissolved ozone removing means 17, as shown in FIG. 6, in the separation tank 18 that receives the treated cleaning water W from the purification treatment tank 12, the treated inside of the tank is treated. The cleaning water W may be heated by the heating means 26, whereby the gas solubility in the treated cleaning water W may be reduced and the dissolved ozone may be separated from the treated cleaning water W.

It should be noted that in the above configuration example shown in FIG.
Is an exhaust path for discharging the separated ozone O ₃ from the upper end of the separation tank 18 to the outside of the tank, and 16b is the treated cleaning water W from which separated dissolved ozone has been separated and removed from the separation tank 18 to spray the water.
It is a downstream side water supply channel to the water sprinkler 6.

[Other Embodiments] Next, other embodiments will be listed. In the water treatment section 11, the concrete ozone supply structure for supplying ozone O ₃ to the cleaning water W can be modified in various ways.

In the sprinkling and washing section 3, the concrete sprinkling structure for sprinkling the washing water W on the air A to be washed can be modified in various ways.

When the dissolved ozone is replaced with the replacement gas a and separated from the treated cleaning water W, the replacement gas a is not limited to air. For example, nitrogen gas is replaced with the replacement gas a. Various gases can be used as the replacement gas a depending on the use of the cleaned air A.

Washing water W to be purified by the water treatment section 11
Is not limited to the cleaning water returned from the sprinkling and cleaning unit 3, but other water sources (such as city water supply and wells)
The apparatus may be used in such a manner that the water supplied from the cleaning water W is purified by the water treatment unit 11 and then supplied to the sprinkling cleaning unit 3.

The air A to be cleaned in the sprinkling / cleaning section 3 is not limited to the circulating air for various room spaces, but the air A to be discarded from the room space to the outside of the system is cleaned in the sprinkling / cleaning section 3 and then the system. It may be a device usage pattern such as discarding to the outside, or a device usage pattern in which the air A supplied from outside the system to the room space is washed in the water spray cleaning unit 3 and then supplied to the room space.

The supply means for supplying the replacement gas a is not limited to the supply pump, but may be a fan, a compressor,
Alternatively, it may be a cylinder or the like. Further, the suction means for forming the vacuum space s is not limited to an intake pump such as a vacuum pump, and a method of forming the vacuum space s by using gas adsorption or a liquid column lowering in the upper closed pipe A method of forming the vacuum space s may be used.

The heating means for heating the treated cleaning water W is
Various heating types such as an electric heater and a heater using a high temperature fluid can be adopted.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a device configuration diagram showing a first embodiment.

FIG. 2 is a device configuration diagram of a main part showing a second embodiment.

FIG. 3 is a device configuration diagram of a main part showing a third embodiment.

FIG. 4 is a device configuration diagram of essential parts showing a fourth embodiment.

FIG. 5 is a device configuration diagram of essential parts showing a fifth embodiment.

FIG. 6 is a device configuration diagram of essential parts showing a sixth embodiment.

FIG. 7 is a device configuration diagram showing a conventional example.

[Explanation of symbols]

W Washing water O ₃ Ozone 11 Water treatment section A Air 3 Sprinkling and washing section 16 Water supply channel 17 Dissolved ozone removal means 19 Air supply means a Replacement gas 24 Selective membrane 25 Intake means s Vacuum space 26 Heating means

Claims (6)

[Claims] 1. A water treatment part (11) for purifying the cleaning water (W) by supplying ozone (O ₃ ) to the cleaning water (W).
An air cleaning device comprising: a cleaning water (W) treated by the water treatment unit (11) and water (A) for spraying the cleaning water (W) into the air (A). The dissolved ozone in the water is forcibly forced from the treated cleaning water (W) to the water supply channel (16) that sends the treated cleaning water (W) from the water treatment section (11) to the sprinkling cleaning section (3). An air cleaning device provided with dissolved ozone removing means (17) for separating and removing. 2. The dissolved ozone removing means (17) directly contacts the replacement gas (a) supplied by the air supply means (19) with the treated cleaning water (W), thereby performing the treated cleaning. The air cleaning device according to claim 1, wherein the dissolved ozone is forcibly separated from the water (W). 3. The selective membrane (2) for allowing the dissolved ozone removing means (17) to allow only gas passage of the replacement gas (a) and the treated cleaning water (W) supplied by the air supply means (19).
4) The treated cleaning water (W)
The air cleaning apparatus according to claim 1, wherein the dissolved ozone is forcibly separated from the air. 4. The dissolved ozone removing means (17) directly exposes the treated cleaning water (W) to the vacuum space (s) formed by the suction means (25), thereby treating the treated cleaning water (W). The air cleaning apparatus according to claim 1, wherein the dissolved ozone is forcibly separated from W). 5. The dissolved ozone removing means (17) passes through a selective membrane (24) which allows only gas passage to the vacuum space (s) formed by the suction means (25), and the treated cleaning water ( The air cleaning device according to claim 1, wherein the dissolved ozone is forcibly separated from the treated cleaning water (W) by exposing W). 6. A structure in which the dissolved ozone removing means (17) forcibly separates dissolved ozone from the treated cleaning water (W) by heating the treated cleaning water (W) by a heating means (26). The air cleaning device according to claim 1.