WO2008053871A1

WO2008053871A1 - Air purifier

Info

Publication number: WO2008053871A1
Application number: PCT/JP2007/071082
Authority: WO
Inventors: Masahiko Asano; Hitoshi Yagi; Koji Yamanaka; Haruyo Suzuki; Masashi Fujita
Original assignee: Misawa Homes Co., Ltd.; Organo Corporation
Priority date: 2006-11-01
Filing date: 2007-10-30
Publication date: 2008-05-08
Also published as: CN101535729B; JPWO2008053871A1; KR20090085629A; CN101535729A; TW200824729A

Abstract

An air purifier comprises a cleaning tower having an internal space communicating with a suction port and a discharge port, a blower for taking air from the suction port into the internal space of the cleaning tower and send it from the discharge port to the outside of the cleaning tower, and nozzles disposed in the internal space of the cleaning tower and spraying water in the internal space of the cleaning tower. The water sprayed from the nozzles is brought into contact with the air supplied by the blower in the cleaning tower.

Description

Specification

Air purification device

Technical field

[0001] The present invention relates to an air purification device, and more particularly to a technique for purifying air sent to a house or the like.

Background art

Conventionally, a ventilator is installed in a house, and outside air is taken into the house by the ventilator to ventilate the house. The outside air contains NOx, SOx, NH4, and other gases and dust, and these are also taken into the house by the ventilator. In order to remove dust, a ventilator equipped with a filter is installed in the house, dust is collected by the finotor, and purified air is taken into the house (for example, Japanese Patent Application Publication No. 2003- 21375).

[0003] Further, there is a water-type air purification device as a device for purifying air using water without using a filter. Therefore, the water-type air purification device accumulates a constant amount of water in the bottom of the water tank, blows air into the water, and brings the air into contact with water.

However, if the outside air is continuously taken in by the ventilation device with a filter, the filter is clogged with dust. Therefore, it is necessary to clean or replace the filter, and the maintenance thereof takes time and cost. In addition, the filter cannot sufficiently remove gases such as NOx, SOx, NH4, etc. in the outside air that cause bad odors, and gas such as NOx, SOx, NH4, etc. is taken into the house.

In addition, in order to blow air into the water, which has high resistance in the process of blowing gas into the water, a high-power blower is required for the water-type air purification device.

[0005] Therefore, the main object of the present invention is that almost no cleaning or replacement of the filter is required, and gases such as NOx, SOx, NH4, and other gases that cause odors can be removed and taken into the house. Furthermore, it is to provide an air purification device that can purify air even with a low-power blower.

Yes

Disclosure of the invention [0006] According to one aspect of the present invention, a cleaning tower having an internal space that communicates with an intake port and also communicates with an exhaust port, and air is taken into the internal space of the cleaning tower from the intake port. A blower for sending air to the outside of the washing tower; and a nozzle arranged in the internal space of the washing tower for spraying water in the internal space of the washing tower, wherein the water sprayed from the nozzle is An air purification device is provided that contacts the air blown by the blower in the cleaning tower.

Brief Description of Drawings

FIG. 1 is a schematic view showing the air purification device in a first embodiment of the present invention in a broken state.

FIG. 2 is a schematic diagram showing the air purification device in a second embodiment of the present invention in a broken state.

FIG. 3 is a schematic view showing an air purification device in a third embodiment of the present invention in a broken state.

[Fig. 4] A graph showing the measurement results of the concentration of NOx contained in the air at the intake and exhaust ports.

[Fig. 5] Fig. 5 is a schematic view showing a state in which an air purification device according to a fourth embodiment of the present invention is broken.

FIG. 6 is a perspective view showing a bag provided in the gas-liquid contact structure of the air purification device in the fourth embodiment.

[Fig. 7] Fig. 7 is a schematic view showing a state in which an air purification device according to a fifth embodiment of the present invention is broken.

FIG. 8 is a perspective view showing a bag provided in a gas-liquid contact structure of an air purification device in a fifth embodiment.

FIG. 9 is a schematic view showing an air purification device in a broken state according to a sixth embodiment of the present invention.

FIG. 10 is a schematic view showing an air purification device in a broken state according to a seventh embodiment of the present invention.

FIG. 11 shows a modification of the plate provided in the gas-liquid contact structure of the air purification device according to the seventh embodiment. It is the shown schematic.

FIG. 12 is a schematic view showing a modification of the plate provided in the gas-liquid contact structure of the air purifying device in the seventh embodiment.

FIG. 13 is a schematic view showing an air purification device in a broken state according to an eighth embodiment of the present invention.

[Fig. 14] A graph showing the measurement results of the concentration of NOx contained in the air at the intake and exhaust ports.

Preferred form for carrying out the invention

[0008] Preferred embodiments for carrying out the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view of the air purification device 1. The air purification apparatus 1 is installed in a house, and the air purification apparatus 1 takes in air outside the house into the house.

As shown in FIG. 1, a space is formed inside the casing 30. An intake port 31 is formed in the lower part of the side surface of the casing 30, and an exhaust port 37 is formed in the upper part of the side surface of the casing 30! /. The louver 5 is provided at the intake port 31 and the louver 6 is provided at the exhaust port 37! /. The air inlet 31 is exposed outside the house and communicates with the outside through the force or duct. The outlet 37 communicates with the force exposed in the house or through the duct.

[0011] Inside the casing 30, an intake duct 33, an exhaust duct 35, and a cleaning tower 40 are provided. The cleaning tower 40 is long in the vertical direction, and an internal space is formed inside the cleaning tower 40. The upper and lower middle part of the internal space of the cleaning tower 40 is the spray chamber 41, the lower part of the internal space of the cleaning tower 40 is the drain pan 42, and the upper part of the internal space of the cleaning tower 40 is the exhaust chamber 43. . The spray chamber 41 and the drain pan 42 communicate with each other, and the exhaust chamber 43 and the spray chamber 41 communicate with each other.

[0012] Water is stored in the drain pan 42. In addition, the drain pan 42 is provided with a sterilizer 15, and water stored in the drain pan 42 is sterilized by the sterilizer 15.

[0013] The sterilizing device 15 has an ultraviolet irradiation, electrolytic sterilization, high-temperature sterilization, water flow to the sterilizing agent packed layer, or sterilizing effect on at least a part of the surface of the structure of the air purification device 1 of the present embodiment. It is constituted by any one of surface treatments to be applied or a combination thereof.

[0014] In the ultraviolet irradiation, a light source that emits light having a sterilizing ability, such as a mercury lamp, is installed in either the drain pan 42 or the water circulation channel, and water is circulated through the sterilizing lamp section. It is done by the distribution formula. As the light source having the sterilizing ability, a high-pressure or low-pressure mercury lamp is preferably used, and as the irradiated ultraviolet light, ultraviolet light with a wavelength of about 254 nm and / or about 182 nm irradiated from the lamp preferably achieves a sterilizing effect. Sliding power S The amount of UV irradiation for achieving sterilization is a force greatly influenced by the distance between the light source and the water to be irradiated and the irradiation time. Generally, at the light source, 0.01 W-s / cm ² or more, preferably 0.025- 0. 05W 's / cm ² is desirable.

[0015] The electrolytic sterilization is to apply a DC voltage to at least a pair of electrodes of the anode and the cathode, and is installed in either the force immersed in the drain pan 42 or the water circulation path, and the electrolytic sterilization unit It is carried out by a circulation type that circulates water. In electrolysis sterilization, when chlorine ions are contained in water, effective chlorine produced at the anode is the main sterilizing active ingredient. If the chloride ion concentration of water is low, chemicals containing chloride ions such as salt, hydrochloric acid, calcium chloride, or natural products containing chloride ions such as seawater and bittern may be added to the water. good. The effective chlorine concentration that suitably achieves the bactericidal effect is affected by the pH of water, and generally has a high bactericidal effect in acidity. However, water with acidic pH and high concentration of effective chlorine causes odor and especially corrosion on metal materials. Therefore, in this air purifier 1, effective chlorine concentration is 0.;! ~ LOOmg C1 / 1 Preferably 0.2 to 10 mg C1 / 1, and force, pH 2 to 12, more preferably pH 3 to 10 is desirable. If the water does not contain chloride ions, or if the chloride ion concentration is low, such as lmg / 1 or less, the electrolytic sterilization is performed by ozone, hydrogen peroxide, This can be achieved by sterilization by active oxygen such as OH radicals, or by anodic oxidation by contacting cells with the anode. In this case, sterilization can be more suitably achieved by increasing the contact efficiency between water and the anode by increasing the surface area of at least a portion of the anode as a porous body and flowing water through the porous body. it can. As the cathode used for electrolytic sterilization, a conductive carbon material, iron, stainless steel, and other metals are preferably used. As the anode, platinum, gold and other precious metals, titanium substrate with platinum, iridium It is preferable to form a metal oxide or a sintered oxide film of these by mixing a single component or a mixture of a plurality of components such as mu, ruthenium, rhodium, and tantalum. When there are many hardness components in water and flow-type electrolytic sterilization is performed, it is possible to prevent the hardness scale from adhering to the cathode by periodically reversing the polarity of the anode and the cathode. . In this case, the electrode material is preferably the above anode material. In order to efficiently produce effective chlorine at the anode, it is desirable that iridium and ruthenium are included as anode material components. To promote the ozone generation that is desirable, it is desirable that the anode contains lead dioxide. The shape of the electrode is appropriately selected from a plate, a porous body, a punching metal, an expanded metal, and the like in consideration of a liquid contact method such as a water flow type and an immersion type. The electrolysis current density passed between the electrodes is preferably a force of 0.;! To 2 OA / dm ² selected in accordance with the target electrode reaction due to the difference in the sterilization mechanism.

[0016] The high temperature sterilization means that the temperature of water or air is raised to a high temperature of 60 ° C or higher, preferably 80 ° C or higher, or the fluid is applied to a temperature rising body such as a metal mesh heated to the same temperature or higher. This is a means for killing bacteria in the fluid by bringing them into contact with each other. In the air purification device 1, the temperature of a part of the circulating water flow path is raised, or a temperature raising body is installed in the air circulation path to perform sterilization. The eliminator 11 described later may be heated with an electric heater or the like, and may also be used as a heating element for sterilization.

[0017] The bactericidal agent used in the sterilization by the surface treatment that imparts the bactericidal effect to the surface of at least a part of the structure of the air purifier 1 or the water passing through the bactericidal agent packed layer is, for example, silver or copper Such as those obtained by physically adsorbing a metal having a bactericidal effect on an adsorbent such as activated carbon or zeolite, or by further kneading a powder of activated carbon or zeolite adsorbed with the metal into nylon or the like, Iodine immobilized on a solid surface having an anion exchange group by an ionic bond, an anion exchanger having a quaternary ammonium group, a polymyxin bonded to agarose, a fungicide containing an alkoxysilyl group-antibacterial The antibacterial agent and antibacterial agent are immobilized by covalent bonds, such as benzyl group and methylene group. Which was via ester and was covalently immobilized disinfectant and antibacterial agent to the polymer chain, also further immobilized sterilization and antibacterial Zaika coating or coating to the surface of the object to the object surface thereof (Kano Hiroki, Chemistry and Biology, 26 (12), 834—841 (1988)). These disinfectants are used alone or in combination, and are installed in the water circulation path to form a disinfectant filling part, and the force for flowing water or air through the disinfectant part, or the structure of the air purification device 1 It is possible to perform sterilization by subjecting at least a part of the surface to a surface treatment with the above bactericide and bringing the surface into contact with water or air.

[0018] The water stored in the drain pan 42 may be sterilized with residual chlorine. In addition, water can be sterilized by setting the effective chlorine content of the water stored in the drain pan 42 to 0.1 mg / L or more and 10 mg / L or less, preferably 1 mg / L or more and 3 mg / L or less! / ,.

One end of the intake duct 33 communicates with the intake port 31, and the other end of the intake duct 33 is connected to the upper and lower middle portions of the cleaning tower 40 and communicates with the spray chamber 41. A prefilter 7 is provided inside the intake duct 33, and the intake port 31 is closed by the prefilter 7. The place where the prefilter 7 is installed may be anywhere as long as it is between the connection portion of the spray chamber 41 and the intake duct 33 and the intake port 31.

The blower 8 is connected to the upper end of the cleaning tower 40, and the blower 8 is connected to one end of the exhaust duct 35, and the other end of the exhaust duct 35 communicates with the exhaust port 37. The blower 8 sucks the air in the cleaning tower 40 and sends it out to the exhaust duct 35. External air is taken into the air inlet 31 by the air blower 8 and is discharged from the air outlet 37 into the house through the air intake duct 33, the cleaning tower 40, the air blower 8, and the air exhaust duct 35.

[0021] A filter 9 is provided inside the exhaust duct 35, and the filter 9 can collect finer dust than the exhaust port 37 is closed. Specifically, the filter 9 is a HEPA filter or a ULP A filter. The place where the filter 9 is installed may be anywhere between the blower 8 and the exhaust port 37.

A plurality of spray nozzles 10 serving as sprayers are provided inside the cleaning tower 40 and above the spray chamber 41. These spray nozzles 10 spray water in the form of a mist, and water is sprayed downward from these spray nozzles 10. Specifically, the spray nozzle 10 sprays water having an average particle diameter of 10 m or more and 1000 m or less. More preferably, Spray Nozure 10 sprays water with an average particle size of 300 m or more and 1000 m or less. Good. The number of spray nozzles 10 may be one instead of a plurality.

Here, the falling end velocity of the water droplet is larger than the flow velocity of the air in the spray chamber 41. The dissolution efficiency of the soluble gas such as NOx, S Ox, NH4, etc. depends on the particle size of the contact, and the particle size of the water droplet is Smaller force Increases dissolution efficiency of soluble gas. Therefore, the average particle diameter of water sprayed from the spray nozzle 10 is 10 m or more and 1000 m or less. Preferably, the average particle size of water sprayed from the spray nozzle 10 is 300 Hm or more and 1000 μm or less.

An eliminator 11 is provided inside the cleaning tower 40 and above the spray nozzle 10, and the spray chamber 41 and the exhaust chamber 43 are partitioned by the eliminator 11. When air passes through the eliminator 11 1, moisture in the passing air adheres to and is captured by the eliminator 11 1, and the water attached to the eliminator 11 1 drops as a water droplet on the drain pan 42.

A pressure feed pump 12 is connected to the drain pan 42. The pressure pump 12 is connected to the spray nozzle 10 by a pipe 13. The pressure pump 12 sucks up the water stored in the drain pan 42 and pumps it to the spray nozzle 10. The water sent to the spray nozzle 10 by the pressure feed pump 12 is sprayed from the spray nozzle 10 by the pressure by the pressure feed pump 12.

A supply pipe 16 is connected to the cleaning tower 40, and water from the supply source 17 is supplied into the cleaning tower 40 through the supply pipe 16. The water supplied from the supply source 17 is tap water, pure water, acidic water or alkaline water, or a mixture of two or more of these. Therefore, the water sprayed from the spray nozzle 10 is also tap water, pure water, acidic water or alkaline water, or a mixture of two or more of these.

[0026] When the water supplied from the supply source 17 is pure water, the water is pure water purified by a reverse osmosis device or an ion exchange device. If the water supplied from the supply source 17 is acidic water, is the anodic water of the electrolyzer obtained by supplying concentrated water or brine purified by a reverse osmosis device to the electrolyzer? Or an anodizing water of an electric softening device or an electric regenerative deionization device. If the water supplied from the supply source 17 is alkaline water, is the water the cathode water of the electrolyzer obtained by supplying concentrated water or brine purified by a reverse osmosis device to the electrolyzer? , Electrosoftening device cathode It is water (soft water), cathodic water of an electric regenerative deionization device, or cathodic water of the electrolysis device obtained by supplying soft water to the electrolysis device.

A drain pipe 14 is connected to a portion above the bottom of the drain pan 42. When the water level stored in the drain pan 42 becomes the connection point of the drain pipe 14, the water in the drain pan 42 is discharged through the drain pipe 14.

Next, the operation of the air purification device 1 will be described.

First, water from the supply source 17 is stored in the drain pan 42 through the supply pipe 16. Then, the pump 12 is operated, the water in the drain pan 42 is pumped to the spray nozzle 10, and water is sprayed from the spray nozzle 10. Thus, water is circulated while the pressure pump 12 is operating. During the circulation of water, the sterilizer 15 operates, and the circulated water is sterilized by the sterilizer 15. Even during the circulation of water, the water from the supply source 17 is supplied to the drain pan 42 intermittently, continuously or in a predetermined cycle.

[0029] During the circulation of water, the blower 8 is activated, and the air outside the house is sucked into the intake 31 and exhausts through the intake 37 through the intake duct 33, the cleaning tower 40, the blower 8, and the exhaust duct 35 in this order. It is done. The air exhausted from the exhaust port 37 is sent into the house. Here, when the air sucked into the intake port 31 passes through the prefilter 7, insects, large dust, debris, and the like are captured by the prefilter 7.

[0030] When the air taken into the spray chamber 41 is rising, water droplets sprayed from the spray nozzle 10 come into contact with dust or the like in the air. The direction in which water is sprayed from the spray nozzle 10 is opposite to the direction in which air rises in the spray chamber 41. The water containing dust or the like is dripped onto the drain pan 42 or is captured by the eliminator 11 and dropped onto the drain pan 42. Therefore, dust and the like are removed from the air passing through the cleaning tower 40.

When the air that has passed through the cleaning tower 40 passes through the filter 9, it is captured by the dust force S filter 9 that could not be removed by the pre-filter 7 or the cleaning tower 40. Then, the air passing through the filter 9 is discharged from the exhaust port 37 and sent into the house.

As described above, according to the present embodiment, the air sucked into the intake port 31 passes through the cleaning tower 40 before passing through the filter 9, and dust or the like in the air is mostly caused by fog in the cleaning tower 40. Removed. In addition to dust, water-soluble gases and solids are removed by the mist in the cleaning tower 40. The power to do S. In addition, when the air passes through the filter 9, the air hardly contains dust and the like, so that the filter 9 can be prevented from being clogged for a long period of time. Therefore, even if the filter 9 is not cleaned over a long period of time, the replacement cycle of the filter 9 can be lengthened.

[0033] By using the air purification device 1 as described above, the air sent into the house can be purified and deodorized, and the air supply to the house can be made more sanitary. In particular, when water is captured by the eliminator 11, spray water does not remain in the air sent into the house, and more purified air is sent into the house.

In addition, since the water stored at the bottom of the drain pan 42 is sterilized by the sterilizer 15, contamination of the circulating water can be suppressed. Therefore, even if the air purification device 1 has been operating for a long time, the air sent into the house can be kept purified.

Furthermore, a part of the dust removed by the sprayed water floats on the surface of the water stored in the drain pan 42, and the dust that has floated is discharged through the drain pipe 14 together with the water. Therefore, it can suppress that dust etc. accumulate in the circulating water.

[0036] In the above embodiment, the force that the air inlet 31 is exposed to the outside of the house, or the force that has led to the outside of the house through the duct. The air inlet 31 is exposed to the inside of the house. You may communicate with the house through force or data. In this way, the air in the house is sucked into and sucked into the air inlet 31, and the air from which dust and the like are removed is supplied into the house through the air outlet 37. Thereby, the air in a house can be purified.

[0037] In addition to the intake port 31, an intake port is provided in the casing 30, the other intake port and the spray chamber 41 are connected by a duct, and the other intake port is exposed in the house or through the duct. You may let it go into the house. By doing so, outside air is taken in from the air intake 31, air in the house is taken in from another air intake, and the taken-in air is purified in the cleaning tower 40, and the purified air is It is sent into the house through exhaust port 37.

[0038] Further, the pre-filter 7 and the filter 9 provided with the pre-filter 7 and the filter 9 respectively in the front and rear stages of the cleaning tower 40 may be either the pre-filter 7 or the filter 9. Further, both the pre-filter 7 and the filter 9 may not be provided. [0039] In the above embodiment, the spray nozzle 10 sprays water downward. The spray nozzle 10 may spray water upward. Further, in the above embodiment, the force of the air taken in to rise in the spray chamber 41 may flow so as to descend. In the above embodiment, the direction force of the water sprayed from the spray nozzle 10 is opposite to the direction of the air flow in the spray chamber 41, but the relationship between these directions is not particularly limited. For example, the direction of water sprayed from the spray nozzle 10 may be the same as the direction of air flow in the spray chamber 41, or the direction of water sprayed from the spray nozzle 10 in the spray chamber 41. It may be perpendicular to the direction of air flow.

[0040] In the above embodiment, water is pumped to the spray nozzle 10 by the pumping pump 12, but compressed air may be fed to the spray nozzle 10 by a compressor in addition to water.

[0041] <Second Embodiment>

In the air purification device 1 of the first embodiment, the water in the drain pan 42 is sucked up by the pressure pump 12 and is pumped to the spray nozzle 10. On the other hand, in the second embodiment, as in the air purification device 1A shown in FIG. 2, the water of the supply source 17 may be sucked up by the pressure pump 12A and pumped to the spray nozzle 10. Therefore, in this air purification device 1A, water does not circulate, and the water sprayed from the spray nozzle 10 and stored in the drain pan 42 is discharged through the drain pipe 14. Further, in this air purification device 1A, since water does not circulate, no sterilizer is provided in the cleaning tower 40.

Yes

[0042] Except for the above, this air purification device 1A is provided in the same manner as the air purification device 1 of the first embodiment, and the air purification device 1A and the air purification device 1 correspond to each other. When the minutes are provided in the same manner, the same reference numerals are given. Even with this air purification device 1A, it is possible to purify and deodorize the air sent into the house, and to extend the replacement cycle of the filter 9.

[0043] <Third embodiment>

In the third embodiment, as in the air purification device 1B shown in FIG. 3, the spray chamber 41 is divided into three chambers 41B, 41C, and 41D by yarn hooks 91Β and 92Β. It is divided into three chambers 42Β, 42C, and 42D by force walls 95B and 96Β. Here, the thread basket 91B continues on the partition wall 95Β, and the net 92Β continues on the partition wall 96Β. Net 95 Β separates room 41B and 41C, net 96 仕切 separates room 41C and 41D, bulkhead 95 仕切 separates room 42 Β and room 42C, 鬲 wall 96 divides room 42C and room 42Β Yes. Duct 33 leads to chamber 41B on the opposite side of chamber 41C. The chamber 41B and the chamber 41C are closed by a partition wall 98 隔壁, the chamber 41D is opened, and the chamber 41D and the exhaust chamber 43 are connected via the eliminator 11.

[0044] Further, the chamber 41B and the chamber 42Β are vertically connected, the chamber 41C and the chamber 42C are vertically connected, and the chamber 41D and the chamber 42D are vertically connected. A supply pipe 16B is connected to the chamber 41B, and water from the supply source 17B is supplied to the chamber 41B through the supply pipe 16B and stored in the chamber 42Β. The chamber 41C is supplied with water from the supply source 17C through the supply pipe 16C, and the chamber 41D is supplied with water from the supply source 17D through the supply pipe 16D. The water supplied from the supply source 17B is acidic water, the water supplied from the supply source 17C is alkaline water, and the water supplied from the supply source 17D is pure water. The combination of source 17B, 17C, 17D and the type of water is not particularly limited.For example, water at source 17Β is alkaline water, water at source 17C is acidic water, and water at source 17D is pure. It may be water.

[0045] A spray nozzle 10B is provided above the chamber 41B, a spray nozzle 10C is provided above the chamber 41C, and a spray nozzle 10D is provided above the chamber 41D. The pressure pump 12B sucks up water stored in the chamber 42Β and pumps it to the spray nozzle 10B. The pump 12C sucks up the water stored in the chamber 42C and pumps it to the spray nozzle 1 OC. The pump 12D sucks up the water stored in the chamber 42D and pumps it to the spray nozzle 10D.

[0046] Except for the above, this air purification device 1B is provided in the same manner as the air purification device 1 of the first embodiment, and the air purification device 1B and the air purification device 1 correspond to each other. The same sign is attached to the minutes.

[0047] The operation of the air purifier 1B will be described.

First, water from the supply source 17B is stored in the chamber 42Β through the supply pipe 16B. Water from sources 17C and 17D is also stored in chambers 42C and 42D, respectively. And the pumping pump 12B is activated, Water in chamber 42B is pumped to spray nozzle 1OB and water is sprayed from spray nozzle 10B. Similarly, water in the chambers 42C and 42D is sprayed from the spray nozzles IOC and 10D, respectively. While the water is circulated by the pressure pumps 12B, 12C, 12D, the blower 8 is activated, and the air outside the house is sucked into the intake port 31, and the intake duct 33, chamber 41B, chamber 41C, chamber 41D, fan 8, and The gas is discharged from the exhaust port 37 through the exhaust duct 35 in order. The air discharged from the exhaust port 37 is sent into the house.

A NOx confirmation test was conducted using the air purification device 1 shown in FIG.

The air purifier 1 was installed in the laboratory, and the laboratory room air was introduced into the spray chamber 41 from the air inlet 31 by the blower 8. The size of the spray chamber 41 is 300mm x 300mm x 300mm, and its capacity is 27L. The flow rate for introducing indoor air was about 100 m ³ / hr.

[0049] Pure air generated by the reverse osmosis device was sprayed from the spray nozzle 10 at a water amount of 1 L / min while the blower 8 was operated and the room air was introduced. The gas discharged from the exhaust port 37 is collected in a gas collection bottle containing pure water at regular intervals, and the gas is dissolved in pure water in the gas collection bottle. The ion (NO-) concentration was analyzed with an ion chromatography analyzer. The volume of the gas collection bottle was lOOmL, the amount of pure water for gas collection was 50 mL, and a gas with a flow rate of 5 NL / min was collected for 60 minutes.

[0050] As a comparative example, in the confirmation test described above, the gas introduced into the air inlet 31 at regular intervals is collected in a gas collection bottle containing pure water, and the gas is purified in the gas collection bottle. After dissolving in water, the concentration of nitrite ion (NO-) in pure water was analyzed.

[0051] The results are shown in Table 1 and FIG.

[table 1] Time from the start of test Equipment exit Equipment entrance

(= Spray time) nitrite ion concentration (m _g / m ³⁾ nitrite ion concentration (mg / m ³⁾

0 hours 0.0070 0.0072

2 hours 0.0015 0.0080

4 hours 0.0026 0.0095

6 hours 0.0026 0.0100

8 hours 0.0016 0.0102

[0052] As can be seen from Table 1 and Fig. 4, when the spray nozzle 10 force is compared with the concentration of nitrite ions at the intake and exhaust before and after the spray chamber spraying pure water, the spray nozzle 10 force is also pure. Nitrite ion concentration is lower in the exhaust port after spraying water. Therefore, when pure water is sprayed from the spray nozzle 10, the nitrite ion concentration in the indoor air introduced from the intake port can be kept low.

FIG. 5 is a longitudinal sectional view of the air purification device 1E. This air purification device 1E is installed in a house, and air outside the house is taken into the house by this air purification device 1E.

[0054] As shown in FIG. 5, a space is formed inside the cleaning tower 30E. An intake port 31E is formed in the lower part of the side surface of the cleaning tower 30E, and an exhaust port 37E is formed in the upper part of the side surface of the cleaning tower 30E. The air inlet 31E communicates with the force exposed outside the house or the outside through the duct. Exhaust port 37E is exposed in the house or leads to the house through a dart.

[0055] A blower 8E is provided in an upper portion inside the cleaning tower 30E. This blower 8E blows air from the lower intake port 31E of the cleaning tower 30E toward the upper exhaust port 37E, and this blower 8E passes from the intake port 31E to the exhaust port 37E via the inside of the cleaning tower 30E. For Force and airflow are generated.

[0056] The intake port 31E is formed on the side surface of the cleaning tower 30E above the lower end of the cleaning tower 30E. 99E of water is stored in a portion 32E below the intake port 31E (hereinafter referred to as the storage chamber 32E) in the space inside the cleaning tower 30E. The storage chamber 32E may be provided with a sterilization device, and the water 99E stored in the storage chamber 32E may be sterilized by the sterilization device.

[0057] The sterilization device means ultraviolet irradiation, electrolytic sterilization, high-temperature sterilization, water passing through the sterilizing agent-packed layer, or sterilization effect on at least a part of the surface of the structure of the air purification device 1E of the present embodiment. It is comprised by the surface treatment which provides singly, or these combination.

[0058] In the ultraviolet irradiation, a light source that emits light having a sterilizing ability, such as a mercury lamp, is immersed in the storage chamber 32E or placed in one of the water circulation channels, and water is allowed to flow through the sterilizing lamp section. It is done by the circulation type. As the light source having the sterilizing ability, a high-pressure or low-pressure mercury lamp or the like is preferably used, and as the irradiated ultraviolet light, ultraviolet light having a wavelength of about 254 nm and / or about 182 nm irradiated from the lamp preferably has a sterilizing effect. Can be achieved. The amount of UV irradiation that can suitably achieve sterilization is a force that is greatly influenced by the distance between the light source and the water to be irradiated and the irradiation time. Generally, it is 0. OlW's / cm ² or more, preferably 025—0.05 W 's / cm ² is desirable.

[0059] The electrolytic sterilization is to apply a DC voltage to at least the pair of electrodes of the anode and the cathode, and is immersed in the storage chamber 32E or installed in one of the water circulation paths, It is carried out by a distribution formula that distributes water. In the case of sterilization by electrolysis, when chlorine ions are contained in water, effective chlorine produced at the anode is the main sterilizing active ingredient. If the chloride ion concentration in water is low, add chemicals containing chloride ions such as salt, hydrochloric acid, and calcium chloride to water, or natural products containing chloride ions such as seawater and bittern. Also good. The effective chlorine concentration that suitably achieves the bactericidal effect is affected by the pH of water, and in general, the bactericidal effect is high in acidity. However, since water containing acidic chlorine with a high concentration of acidic pH causes odors and corrosion on metal materials in particular, the effective chlorine concentration of this air purifier 1E is 0.;! ~ LOOmg Cl / 1, preferably 0.2 to 10 mg Cl / 1, force, pH 2 to; 12, more preferably pH 3 to 10 desirable. If the water does not contain chloride ions, or if the chloride ion concentration is low, such as lmg / 1 or less, the electrolytic sterilization is performed by ozone, hydrogen peroxide, This can be achieved by sterilization by active oxygen such as OH radicals, or by anodic oxidation by contacting cells with the anode. In this case, sterilization can be more suitably achieved by increasing the contact efficiency between water and the anode by increasing the surface area of at least a portion of the anode as a porous body and flowing water through the porous body. it can. As the cathode used for electrolytic sterilization, a conductive carbon material, iron, stainless steel, and other metals are preferably used. As anode, noble metals such as platinum and gold, platinum substrate, platinum, iridium, ruthenium, rhodium, tantalum, etc. alone or mixed with multiple components to form a plating or a sintered oxide film of these. Is preferred. When there are many hardness components in water and flow-type electrolytic sterilization is performed, it is possible to prevent the hardness scale from adhering to the cathode by periodically reversing the polarity of the anode and the cathode. . In this case, the electrode material is preferably the above anode material. In order to efficiently produce effective chlorine at the anode, it is desirable that iridium and ruthenium are included as anode material components. To promote the ozone generation that is desirable, it is desirable that the anode contains lead dioxide. The shape of the electrode is appropriately selected from a plate, a porous body, a punching metal, an expanded metal, and the like in consideration of a liquid contact method such as a water flow type and an immersion type. The electrolysis current density passed between the electrodes is preferably a force of 0.;! To 2 OA / dm ² selected in accordance with the target electrode reaction due to the difference in the sterilization mechanism.

[0060] The high temperature sterilization means that the temperature of water or air is raised to a high temperature of 60 ° C or higher, preferably 80 ° C or higher, or the fluid is applied to a temperature rising body such as a metal mesh heated to the same temperature or higher. This is a means for killing bacteria in the fluid by bringing them into contact with each other. In this air purification device 1E, the temperature of a part of the circulating water flow path is raised, or a temperature raising body is installed in the air circulation path to perform sterilization. An eliminator 11E described later may be heated with an electric heater or the like, and may also be used as a sterilization heating element.

[0061] The bactericidal agent used in the sterilization by the surface treatment that imparts the bactericidal effect to the surface of at least a part of the structure of the air purification device 1E through water through the bactericide packed layer is, for example, silver or copper Metals having sterilizing effect such as activated carbon are adsorbed on adsorbents such as zeolite Or activated carbon adsorbed with the metal or zeolite powder and kneaded into a fiber and processed into a fibrous form. Iodine is fixed to a solid surface having an anion exchange group by ionic bonds. , Quaternary ammonium group-containing anion exchanger, polymyxin bonded to agarose, alkoxysilyl group-introduced antibacterial agent ・ antibacterial agent and hydroxyl group on the carrier surface are bound by dealcoholization reaction Antibacterial agent immobilized by covalent bond, antibacterial agent immobilized on polymer chain via benzyl group, methylene group, ester, etc. The surface of the object is fixed or sterilized and antibacterial agent is applied or coated on the surface (Kano Hiroki, Chemistry and Biology, 26 (1 2), 834—841 (1988)). These disinfectants are used alone or in combination, and are installed in the water circulation path to form a disinfectant filling part, and the force of circulating water or air through the disinfectant part, or the structure of this air purification device 1E At least a part of the surface can be surface-treated with the above-mentioned disinfectant, and the surface can be sterilized by bringing water or air into contact therewith.

[0062] The water stored in the storage chamber 32E may be sterilized with residual chlorine. In addition, the effective chlorine of water stored in the storage chamber 32E can be sterilized by setting it to 0.1 mg / L or more and 10 mg / L or less, preferably 1 mg / L or more and 3 mg / L or less! / ,.

[0063] A plurality of nozzles 10E are provided inside the cleaning tower 30E and above the storage chamber 32E. These nozzles 10E spray water downward. The nozzle 10E may spray water in the form of a mist. In this case, it is more preferable that the nozzle 10E sprays water having a particle size of 10 m or more and 1000 m or less!

Further, the nozzle 10E may spray water by continuously dropping water droplets.

Yes

Note that the number of nozzles 10E may be one.

[0064] An eliminator 11E is provided inside the cleaning tower 30E and above the nozzle 10E, and the space in the cleaning tower 30E is partitioned vertically by the eliminator 11E. When air passes through the eliminator 11E, moisture in the passing air adheres to and is captured by the eliminator 11E, and water attached to the eliminator 11E drops downward as water droplets.

[0065] At the spray destination of Nozunore 10E, that is, below Nozunore 10E and above intake port 31E. The gas-liquid contact structure 20E is provided. The gas-liquid contact structure 20E captures the water dispersed from the nozzle 10E and brings the air passing through the gas-liquid contact structure 20E upward into contact with the captured water so that the water-soluble gas ( For example, NOx gas, SOx gas, NH4 gas) are absorbed by water. The gas-liquid contact structure 20E has a layer filled with a plurality of fillers 21E. Examples of the filling material 21E include Raschig rings, Lessing rings, ball rings, peddle saddles, interlock saddles, terralet, and the like.

[0066] Specifically, the gas-liquid contact structure 20E is configured as shown in FIG. A soot 22E as shown in FIG. 2 is disposed below the nozzle 10E and above the intake port 31E, and the soot 22E is filled with a filling material 21E.籠 22E has a wire mesh in a box shape.

[0067] A pump 12E is connected to the storage chamber 32E. Pump 12E is connected to Nozure 10E by pipe 13E. The pump 12E sucks up the water 99E stored in the storage chamber 32E and sends it to the nozzle 10E. The water sent to the nozzle 10E by the pump 12E is also sprayed by the pressure of the pump 12E.

[0068] A supply pipe 16E is connected to the cleaning tower 30E, and water from the supply source 17E is supplied into the cleaning tower 30E through the supply pipe 16E. The supply pipe 16E is provided with a valve 18E. When the valve 18E is opened, water as a supply source is supplied into the cleaning tower 30E. The water supplied from the source 17E is tap water, pure water, acidic water or alkaline water, or a mixture of two or more of these. Therefore, the water sprayed from the nozzle 10E is also tap water, pure water, acidic water, alkaline water, or a mixture of two or more of these.

[0069] When the water supplied from the supply source 17E is pure water, the water is pure water purified by a reverse osmosis device or an ion exchange device. If the water supplied from the supply source 17E is acidic water, is the water anodic water of the electrolyzer obtained by supplying concentrated water or brine purified by a reverse osmosis device to the electrolyzer? Or, it is an anodic water of an electrosoftening device or an electric regenerative deionization device. The dissolution efficiency of alkaline gases such as NH4 gas in the air depends on the pH of the water in contact. The lower the pH of the water in contact, the higher the efficiency of dissolving alkaline gases such as NH4 gas in the air. Therefore, when alkaline gas is contained in the air, the water supplied from the supply source 17E is set to pH 2 to 9, more preferably pH 3 to 6. When the water supplied from the supply source 17E is alkaline water, the water is the cathodic water of the electrolysis device obtained by supplying concentrated water or brine purified by a reverse osmosis device to the electrolysis device. It is the cathode water (soft water) of the electrosoftening device, the cathode water of the electric regenerative deionization device, or the cathode water of the electrolysis device obtained by supplying soft water to the electrolysis device . The dissolution efficiency of acidic gases such as NOx gas and SOx gas in the air depends on the pH of the water in contact. The higher the pH of the water in contact with S, the higher the efficiency of dissolving acidic gases such as NOx gas and SOx gas in the air. Therefore, when acidic gas is contained in the air, the water supplied from the supply source 17E is pH 5 to 12; more preferably pH 8 to 10; In particular, in the case of cathodic water obtained by subjecting tap water to an electrolyzer, an electrosoftening device, or an electric regenerative deionization device, salts such as magnesium hydroxide are liable to be formed when pHIO is exceeded. Preferably there is.

[0070] A drain pipe 14E is connected to a portion above the bottom of the storage chamber 32E. When the level of the water 99E stored in the storage chamber 32E becomes the connection point of the drain pipe 14E, the water 99E in the storage chamber 32E is discharged through the drain pipe 14E.

Next, the operation of this air purification device 1E will be described.

First, water from the supply source 17E is stored in the storage chamber 32E through the supply pipe 16E. Then, the pump 12E is activated, the water 99E in the storage chamber 32E is sent to the Noznore 10E, and water is sprayed from the Noznole 10E. The water sprayed from the nozzle 10E is captured and absorbed by the gas-liquid contact structure 20E. Specifically, the water is absorbed into the gap of the filling 21E. Water circulates while pump 12E is operating. The sterilizer operates during the water circulation, and the circulating water is sterilized by the sterilizer. Note that the water from the supply source 17E is supplied to the storage chamber 32E intermittently, continuously or in a predetermined cycle even during the circulation of water.

[0072] During the circulation of water, the blower 8E operates, the air outside the house is sucked into the intake port 31E, and the sucked air rises through the cleaning tower 30E and is discharged through the exhaust port 37E. The air discharged from the exhaust port 37E is sent into the house.

[0073] When the air taken into the cleaning tower 30E is rising, the air passes through the gas-liquid contact structure 20E. When air passes through the gas-liquid contact structure 20E, the water and air absorbed by the gas-liquid contact structure 20E come into contact with each other. Also, dust in the airflow comes into contact with water. Therefore, gas-liquid Dust etc. are removed from the air passing through the contact structure 20E. Further, the water-soluble gas in the air passing through the gas-liquid contact structure 20E is dissolved in water and removed. Then, the air passing through the gas-liquid contact structure 20E is exhausted by the exhaust port 37E and sent into the house.

[0074] As described above, according to the present embodiment, when the air sucked into the intake port 31E passes through the gas-liquid contact structure 20E, dust and water-soluble gas in the air are absorbed by the water. . For this reason, the air sent into the house can be purified and deodorized, and the air supply to the house can be made more hygienic. In particular, when water is captured by the eliminator 11E, water does not remain in the air sent into the house, and more purified air is sent into the house.

[0075] In addition, since the water stored at the bottom of the storage chamber 32E is sterilized by the sterilizer, contamination of the circulating water can be suppressed. Therefore, even if the air purification device 1E has been operating for a long period of time, the air sent into the house can be kept in a purified state.

[0076] Furthermore, part of the dust and the like removed by the water in the gas-liquid contact structure 20E floats on the surface of the water stored in the storage chamber 32E, and the floating dust and the like are discharged through the drain pipe 14E together with the water. Is done. Therefore, it is possible to suppress the accumulation of dust and the like in the circulating water.

[0077] In the above embodiment, the force that the air inlet 31E is exposed to the outside of the house, or the force that has passed the outside of the house through the duct. The air inlet 31E is exposed to the inside of the house. It may lead into the house through force or ducts. In this way, the air in the house is sucked into the air inlet 31E, and the air from which dust, water-soluble gas, etc. are removed is supplied into the house through the air outlet 37E. Thereby, the air in a house can be purified.

[0078] In addition to the air intake port 31E, an air intake port may be provided in the cleaning tower 30E, and the other air intake port may be exposed in the house or connected to the house through a duct. In this way, outside air is taken in from the air inlet 31E, air in the house is taken in from another air inlet, and the taken-in air is purified in the cleaning tower 30E, and the purified air is It is sent to the house through the exhaust 37E.

[0079] Further, in the above embodiment, the force of the air taken in so as to rise in the cleaning tower 30E may flow so as to descend. In the above embodiment, sprayed from the nozzle 10E. The direction of the generated water is the opposite of the direction of the air flow in the washing tower 30E, but the relationship between the directions is not particularly limited.For example, the direction of the water sprayed from the nozzle 10E The direction of the air flow in the tower 30E may be the same, or the direction of the water dispersed from the nozzle 10E may be perpendicular to the direction of the air flow in the washing tower 30.

[0080] Further, in the above embodiment, compressed air may be sent to the nozzle 10E by a compressor in addition to the force water that has sent water to the nozzle 10E by the pump 12E.

[0081] Further, a partition plate may be disposed in the gas-liquid contact structure 20E, and the air may contact the acid water, alkaline water, and pure water in this order in the gas-liquid contact structure 20E. Further, in the gas-liquid contact structure 20E, air may contact in the order of alkaline water, acidic water, and pure water, or may contact in the order of alkaline water and pure water.

[0082] In addition, as in the first embodiment, a prefilter may be provided between the intake port 31E and the internal space of the cleaning tower 30E, and a filter may be provided between the exhaust port 37E and the blower 8.

[0083] <Fifth embodiment>

The air purifying device 1E of the fourth embodiment has a gas-liquid contact structure 20E with two rods 22E, and the rod 22E is filled with a plurality of fillers 21E. On the other hand, in the air purifying apparatus 1F of the fifth embodiment shown in FIG. 7, the gas-liquid contact structure 20F includes a plurality of ridges 22F shown in FIG. 8, and these ridges 22F are filled with the filling 21F. ing. Here, these flanges 22F are provided in a plate shape and a box shape. With the thickness direction of 22F perpendicular to the direction of the air flow in the cleaning tower 30E, these 22F are arranged at intervals below the nozzle 10E!

Note that, as in the first embodiment, a prefilter may be provided between the intake port 31E and the internal space of the cleaning tower 30E, and a filter may be provided between the exhaust port 37E and the blower 8.

[0084] Except for the above, this air purification device 1F is provided in the same manner as the air purification device 1E of the fourth embodiment, and there are portions corresponding to each other between the air purification device 1F and the air purification device 1E. In the case where they are similarly provided, the same reference numerals are given. Even with this air purifier 1F !, it is possible to purify and deodorize the air sent into the house.

[0085] <Sixth Embodiment> As shown in FIG. 9, in the air purification device 1G of the sixth embodiment, the gas-liquid contact structure 20G has a plurality of perforated plates 24G. Specifically, these multi-hole plates 24G are stacked at a distance below the nozzle 10E, and the thickness of the multi-hole plate 24G is parallel to the direction of the air flow in the cleaning tower 30E. The perforated plate 24G is formed with a plurality of through holes penetrating from one surface to the other surface. In this gas-liquid contact structure 20G, the water sprayed from Nozure 10E is trapped in the through holes of these porous plates 24G, and when the air passes upward through the through holes, the air and water come into contact with each other. Water-soluble gas (for example, NOx gas, SOx gas, NH4 gas) is absorbed by water.

[0086] Except for the above, this air purification device 1G is provided in the same manner as the air purification device 1E of the fourth embodiment, and there are portions corresponding to each other between the air purification device 1G and the air purification device 1E. In the case where they are similarly provided, the same reference numerals are given. Even with this air purifier 1G! /, You can clean and deodorize the air sent into the house.

As shown in FIG. 10, in the air purification device 1H of the seventh embodiment, the gas-liquid contact structure 20H has a plurality of plates 25H. These plates 25H are arranged in a shelf shape, and further, these plates 25H are provided in the left-right force and the wrong positions. These plates 25H are provided with an inclination, and the ends of these plates 25H are directed obliquely downward. These plates 25H may be parallel to each other.

[0088] In this gas-liquid contact structure 20H, the water sprayed with the nozzle 10E force is captured by being placed on these plates 25H, and when the air passes between the plates 25H, the air and water come into contact with each other. Water-soluble gas (for example, NOx gas, SOx gas, NH4 gas) is absorbed into water.

As shown in FIG. 11, the plate 25H may be a corrugated plate, and as shown in FIG. 12, a groove 26H may be formed on the surface of the plate 25H. If the plate 25H is a corrugated plate, it will be easy to trap the water sprayed on the plate 25H! If the groove 26H is formed in the plate 25H! /, Water will flow easily.

Note that, as in the first embodiment, a pre-fre- quency is provided between the intake port 31E and the internal space of the cleaning tower 30E. A filter may be provided, and a filter may be provided between the exhaust port 37E and the blower 8.

[0090] Except for the above, this air purification device 1H is provided in the same manner as the air purification device 1E of the fourth embodiment, and there is a portion corresponding to each other between the air purification device 1H and the air purification device 1E. In the case where they are similarly provided, the same reference numerals are given. Even with this air purifier 1H! /, It is possible to purify and deodorize the air sent into the house.

[0091] <Eighth embodiment>

In the eighth embodiment, as in the air purification device 1J shown in FIG. 13, the space inside the cleaning tower 30E is divided into three chambers by the nets 93M and 94M, and these three chambers are air-conditioned. Liquid contact structures 20J, 20K, and 20L are provided. The gas-liquid contact structures 20J to 20L are provided in the same manner as any of the gas-liquid contact structures 20E, 20F, 20G, and 20H in the fourth to seventh embodiments.

A nozzle 10J is provided above the gas-liquid contact structure 20J, a nozzle 10K is provided above the gas-liquid contact structure 20K, and a nozzle 10L is provided above the gas-liquid contact structure 20L. The upper side of the nozzle 10J and the upper side of the nozzle 10K are closed by a partition wall 98M, and the chamber provided with the gas-liquid contact structures 20J and 20K is partitioned from the eliminator 11E by the partition wall 98M. On the other hand, since the upper side of the nozzle 10L is not blocked, the chamber provided with the gas-liquid contact structure 20L leads to the eliminator 11E.

[0093] The region below the intake port 31E is partitioned into three storage chambers 32J, 32K, and 32L by partition walls 95M and 96M. Here, the net 93M continues on the partition wall 95M, and the net 94M continues on the partition wall 96M! /.

[0094] A supply pipe 16J is connected to the storage chamber 32J, and water from the supply source 17J is supplied to the storage chamber 32J through the supply pipe 16J. A supply pipe 16K is connected to the storage chamber 32K, and water from the supply source 17K is supplied to the storage chamber 32K through the supply pipe 16K. A supply pipe 16L is connected to the storage chamber 32L, and water from the supply source 17L is supplied to the storage chamber 32L through the supply pipe 16L. The water supplied from the supply source 17J is acidic water, the water supplied from the supply source 17K is alkaline water, and the water supplied from the supply source 17L is pure water. The combination of 17L and 17L and water types is not particularly limited. For example, the water at source 17J is alkaline water, the water at source 17K is acidic water, and the water at source 17L is pure. Even water Yes.

[0095] The pump 12J sucks / raises water 99J stored in the storage chamber 32J, and feeds it to the nozzle 10J. The pump 12K sucks up 99K of water stored in the storage chamber 32K and sends it to the nozzle 10K. The pump 12L sucks up 99L of water stored in the storage chamber 32L and sends it to the 10L Nozure 10L.

[0096] Except for the above, this air purification device 1J is provided in the same manner as the air purification device 1E of the fourth embodiment, and the air purification device 1J and the air purification device 1E correspond to each other. The same sign is attached to the minutes.

[0097] The operation of this air purifying device 1J will be described.

First, water from the supply source 17J is stored in the storage chamber 32J through the supply pipe 16J. Water from the supply sources 17K and 17L is also stored in the storage chambers 32K and 32L, respectively. Then, the pump 12J operates, the water 99J in the storage chamber 32J is fed to the nozzle 10J, the water is sprayed downward from the nozzle 10J, and the sprayed water 99J is captured by the gas-liquid contact structure 20J. Similarly, the water 99K and 99L in the storage chambers 32K and 32L are sprayed downward from the nozzles 10K and 10L, respectively, and are captured by the gas-liquid contact structures 20K and 20L. While the water is circulated by the pumps 12J, 12K, 12L, the blower 8E is activated and the air outside the house is sucked into the air intake 31. Exhaust port 37E force is also discharged. Exhaust port Air exhausted by 37E is sent into the house. Therefore, the blown air contacts the water sprayed from the nozzles 10J, 10K, and 10L in this order. Therefore, even with this air purification device 1J, it is possible to purify and deodorize the air sent into the house.

A NOx confirmation test was conducted using the air purifier 1E shown in FIG.

The air purifier 1E was installed in the laboratory, and the air in the laboratory was introduced from the air inlet 31E into the gas-liquid contact structure 20E by the blower 8E. The size of the gas-liquid contact structure 20E is 200mm x 200mm x 200mm, and its capacity is 8L. As the filling material 21E, a Raschig ring having an inner diameter of 5 mm and a length of 5 mm was used. The flow rate of the indoor air introduced was about 150m ³ / hr. [0099] With the blower 8 operated and indoor air introduced, pure water generated by the reverse osmosis device was sprinkled from the nozzle 10E at a water volume of 1.5 L / min. Then, the gas discharged at the exhaust port 37E at regular intervals is collected in a gas collection bottle containing pure water, dissolved in pure water in the gas collection bottle, and nitrous acid in pure water. The ion (NO-) concentration was analyzed with an ion chromatography analyzer. The volume of the gas collection bottle was lOOmL, the amount of pure water for gas collection was 5 OmL, and a gas with a flow rate of 5 NL / min was collected for 60 minutes.

[0100] As a comparative example, in the above-described confirmation test, the gas introduced into the air inlet 31E at regular intervals was collected in a gas collection bottle containing pure water, and the gas was purified in the gas collection bottle. It was dissolved in water and analyzed for nitrite ion (NO-) concentration in pure water.

[0101] The results are shown in Table 2 and FIG.

[Table 2]

[0102] As is clear from Table 2 and FIG. 14, the nitrite ion concentration at the inlet and outlet before and after the gas-liquid contact structure 20E sprinkling pure water from the nozzle 10E Nitrite ion concentration is lower in the exhaust port after sprinkling pure water. For this reason, when pure water is sprayed from nozzle 10E, the concentration of nitrite ions in the indoor air introduced from the intake port can be kept low.

[0103] The power described above for the preferred embodiment of the present invention According to the preferred embodiment of the present invention, there is an internal space that leads to the intake port (31 or 31E) and to the exhaust port (37 or 37E). The cleaning tower (40 or 30E), and the air is taken into the internal space of the cleaning tower (40 or 30E) from the intake port (31 or 31E) and the cleaning tower (40 or 30E) is discharged from the exhaust port (37 or 37E). 30E) and a blower (8 or 8E) for sending air to the outside, and the washing tower (40 Or a nozzle (10 or 10E) that is disposed in the internal space of the washing tower (40 or 30E) and sprays water in the internal space of the washing tower (40 or 30E). Provided is an air purifier (1, 1A, 1B, 1E, 1F, 1H or 1J) in which the water contacts the air blown by the blower (8 or 8E) in the washing tower (40 or 30E). The

[0104] Accordingly, air in the house or outside of the house is also taken into the internal space of the washing tower (40 or 40E) by the blower (8 or 8E), and the washing tower (40 or 4E). The air taken into 0E) is sent into the exhaust outlet (37 or 37E) force, etc. When water is sprayed into the washing tower (40 or 30E) by the nozzle (10 or 10E), the water comes into contact with the dust in the air being blown, and the dust is removed from the air. In addition, water-soluble gases in the air being blown, such as NOx gas, SOx gas, NH4 gas, and gases that cause malodors, are dissolved in the sprayed water, and the water-soluble gas is removed from the air. Therefore, the purified air is sent into the house. In addition, the filter cleans the air by contact with water, so there is no need to clean or replace the filter. The air taken into the intake tower (31 or 31E) and the washing tower (40 or 30E) passes through an atmosphere in which the dispersed water is dispersed rather than being blown into the water, so there is little pressure loss. Therefore, it is not necessary to increase the output of the blower (8 or 8E).

[0105] Preferably, the nozzle (10) sprays water in the form of a mist.

Since the water sprayed from the nozzle is in the form of a mist, dust, water-soluble gas, etc. in the blown air easily come into contact with the water particles.

[0106] Preferably, the nozzle (10) sprays water having a particle diameter of 10 m or more and 1000 m or less.

Yes

When the sprayed water has a particle size of 10 m or more and 1000 μm or less, dust, water-soluble gas, etc. in the blown air can easily come into contact with the water particles.

[0107] Preferably, the air purification device (1E, 1F, 1H or 1J) is provided at a spray destination of the nozzle (10E) in an internal space of the cleaning tower (30E), and the nozzle (10E) And a gas-liquid contact structure (20E, 20F, 20G, or 20H) that captures the water sprayed from the air and makes the captured water contact the air blown by the blower (8E).

[0108] Accordingly, when water is sprayed on the nozzle (10E) force, the water is in contact with the gas-liquid contact structure (20E, 20F, 20G or 20H). And the air inside the house or outside of the house is taken into the internal space of the suction tower (30E) by the blower (8E), and the air taken into the washing tower (30E) comes into gas-liquid contact It passes through the structure (20E, 20F, 20G or 20H) and is sent out from the exhaust port (37E) to the house. When air in the cleaning tower (30E) passes through the gas-liquid contact structure (20E, 20F, 20G, or 20H), water and air come into contact with each other, and dust in the air is taken into the water, Water-soluble gases such as NOx gas, SOx gas, NH4 gas, etc. dissolve in water. Therefore, the purified air is sent into the house.

[0109] Preferably, the gas-liquid contact structure (20E or 20F) force S is filled with a plurality of fillers (21E or 21F) at the spray destination of the nozzle (10E).

Since multiple fillers (21E or 21F) are filled at the spray destination of the nozzle (10E), the water sprayed from the nozzle (10E) is trapped in the gap between the fillers (21E or 21F) and the blower (8E ) Passes through the gap in the packing (21E or 21F). For this reason, air and water come into contact with each other, and dust and water-soluble gas in the air are removed.

[0110] Preferably, the gas-liquid contact structure (20G) is formed by stacking a perforated plate (24G) at a spray destination of the nozzle.

Since the porous plate (24G) is stacked at the spray destination of the nozzle (10E), the water sprayed from the nozzle (10E) is trapped in the hole of the porous plate (24G) and the air flowing by the blower (8E) is Passes through holes in the perforated plate (24G). For this reason, air and water come into contact with each other, and dust and water-soluble gas in the air are removed.

[0111] Preferably, the gas-liquid contact structure (20H) includes a plurality of plates (25H) arranged in a shelf shape, and the plurality of plates (25H) in a shelf shape at a spray destination of the nozzle (10E). Since it is arranged, the water sprayed from the nozzle (10E) is caught on the surface of the plate 25H), and the air flowing by the blower (8E) passes between the plates (25H). For this reason, air and water come into contact with each other, and dust and water-soluble gas in the air are removed.

[0112] Preferably, the air purification device (1) further includes a filter (7) provided between the air inlet (31) and the washing tower (40).

Since a filter (7) is provided between the intake port (31) and the cleaning tower (40), the intake port (31 Dust and the like in the air taken in by the filter are captured by the filter (7). Therefore, the air purification efficiency is improved. In addition, since the air from which dust has been removed is sent to the cleaning tower (40), when the water sprayed in the cleaning tower (40) is stored or drained, the amount of dust contained in the water is small. Therefore, the post-treatment of the water can be easily performed.

[0113] Preferably, the air purification device (1) further includes a filter (9) provided between the blower (8) and the exhaust port (37).

Since a filter (9) is provided between the blower (8) and the exhaust port (37), dust that could not be removed in the cleaning tower (40) is also captured by the filter (9). The Therefore, the air purification efficiency is improved. Further, since dust and the like are almost removed in the cleaning tower (40), it is not necessary to frequently clean and replace the filter (9) with the exhaust port (37) blocked.

[0114] Preferably, the air purification device (1, 1A, 1B, 1E, 1F, 1G, 1H or 1J) feeds water to the nozzle (10 or 10E), and the nozzle (10 or 10E). ) It is further equipped with a pump (12, 12A, 12B, 12C, 12D, 12E, 12J, 12K or 12L) that sprays water.

When the liquid is fed to the nose, nore (10 or 10E) by the hydraulic pump (12, 12B, 12C, 12D, 12E, 12J, 12K or (or 12L), the nozzle (10 or 10E) is also sprayed with water.

[0115] Preferred <is that the pump (12, 12B, 12C, 12D, 12E, 12J, 12K or 12L) sprays water stored in the lower part of the internal space of the washing tower after being sprayed from the nozzle. The solution is fed to the Nozure (10 or 10E).

Therefore, since water circulates, water consumption can be suppressed.

[0116] Preferably, the air purification device (1) is disposed in the internal space of the cleaning tower (40), and is sprayed from the nozzle (10) and stored in the bottom of the internal space of the cleaning tower (40). It is further provided with a sterilizer (15) for sterilizing the generated water.

Therefore, contamination of the circulating water can be suppressed, and even when the air purification device (1) has been operating for a long time, the air sent into the house can be kept purified.

[0117] Preferably, the sterilizer (15) is an electrolytic sterilizer.

[0118] Preferably, the sterilizer (15) is an ultraviolet irradiation device.

[0119] Preferably, the water stored in the lower part of the internal space of the washing tower (40 or 30E) is sterilized with residual chlorine. [0120] Preferably, the water is sterilized by setting the effective chlorine concentration of the water stored in the lower part of the internal space of the washing tower (40 or 30E) to 0.1 mg / L or more and 10 mg / L or less.

[0121] Preferably, the water is sterilized by setting the effective chlorine concentration of the water stored in the lower part of the internal space of the washing tower (40 or 30E) to 1 mg / L or more and 3 mg / L or less.

[0122] Preferably, the air purification device (1, 1A, 1B, 1E, 1F, 1G, 1H, or 1J) is more than the nozzle (10 or 10E) in the internal space of the washing tower (40 or 30E). It further includes an eliminator (11 or 11E) that is disposed on the exhaust port (37 or 37E) side and captures water sprayed from the nozzle (10 or 10E).

By catching water by the eliminator (11 or 11E), it is possible to prevent water from remaining in the air sent into the house. Therefore, the air sent into the house is purified more efficiently.

[0123] Preferably, the air purification device (1, 1A, 1B, 1E, 1F, 1G, 1H or 1J) is above the bottom of the internal space of the washing tower (40 or 30E)! /, The drainage pipe (14 or 14E) is further connected to the washing tower (40 or 30E) and drains the stored water up to the water level at the connection point.

Since the drain pipe (14 or 14E) is connected to the washing tower (40 or 30E), the sprayed water does not accumulate at the water level beyond the connection point of the drain pipe (14 or 14E). In particular, dust that has come into contact with water floats on the surface of the water stored in the washing tower (40 or 30E), so that dust removed from the air is discharged from the drain pipe (14 or 14E) together with water.

[0124] Preferably, the nozzle sprays tap water, pure water, acidic water, alkaline water, or a mixture of two or more thereof.

[0125] Preferably, the nozzle sprays pure water purified by a reverse osmosis device or an ion exchange device.

[0126] Preferably, the nozzle is anodic water of the electrolysis apparatus obtained by supplying concentrated water or brine purified by a reverse osmosis apparatus to the electrolysis apparatus, or an electrosoftening apparatus or an electric regeneration type. Spray the anode water of the deionizer.

[0127] Preferably, the nozzle comprises cathodic water of the electrolysis apparatus obtained by supplying concentrated water or brine purified by a reverse osmosis apparatus to the electrolysis apparatus, cathodic water of an electrosoftening apparatus, The cathodic water of the electrolysis apparatus obtained by supplying cathodic water or soft water of an electroregenerative deionization apparatus to the electrolysis apparatus is sprayed.

[0128] Japanese patent application filed on November 1, 2006 including specification, claims, drawings, and abstract 2006-298122 and Japanese patent application filed on March 1, 2007

The entire disclosure of 2007-51539 is incorporated herein by reference as far as the national laws of the designated country designated in this international application or the selected country selected.

[0129] Forces Showing and Explaining Various Exemplary Embodiments The present invention is not limited to those embodiments. Accordingly, the scope of the invention is limited only by the following claims.

Industrial applicability

[0130] As described above, according to a preferred embodiment of the present invention, water-soluble gas in the blown air, for example, NOx gas, SOx gas, NH4 gas, gas causing malodor, etc. is scattered. Water soluble gas and dust can be removed from the air by dissolving in the cloth water and further coming into contact with the water sprayed with dust in the air. Can be sent. In addition, the air can be purified by the contact of water and air without cleaning and replacement of the filter and even when the frequency is low. In addition, since air taken into the washing tower from the intake port passes through the atmosphere in which water is dispersed, the pressure loss can be reduced and the output of the blower can be lowered.

As a result, the present invention can be particularly suitably used for a technology for purifying air sent to a house or the like.

Claims

The scope of the claims

[I] a washing tower having an internal space that leads to the intake and the exhaust,

A blower that takes air from the intake port into the internal space of the cleaning tower and sends it out of the cleaning tower from the exhaust port;

A nozzle arranged in the internal space of the cleaning tower and spraying water in the internal space of the cleaning tower,

The air purifier which the water sprayed from the said nozzle contacts with the air ventilated by the said air blower in the said washing tower.

[2] The air purifier according to claim 1, wherein the nozzle sprays water in a mist form.

[3] The air purification device according to claim 2, wherein the nozzle sprays water having a particle diameter of 10 m or more and 1000 μm or less.

[4] A gas-liquid contact structure that is provided at a spray destination of the nozzle in the internal space of the cleaning tower, captures the water sprayed from the nozzle, and makes the captured water contact the air blown by the blower The air purifier according to any one of claims 1 to 3, further comprising:

[5] The gas-liquid contact structure is formed by filling a plurality of fillers at the spray destination of the nozzle.

The air purifier according to claim 4.

[6] The gas-liquid contact structure is formed by stacking a perforated plate at a spray destination of the nozzle!

4. The air purification device according to 4.

7. The air purification apparatus according to claim 4, wherein the gas-liquid contact structure is formed by arranging a plurality of plates in a shelf shape.

8. The air purification device according to claim 1, further comprising a filter provided between the intake port and the cleaning tower.

[9] The air purification device according to [1], further comprising a filter provided between the blower and the exhaust port.

10. The air purification device according to claim 1, further comprising a pump for feeding water to the nozzle and spraying water from the nozzle.

[II] The pump is sprayed from the nozzle and stored in the lower part of the internal space of the washing tower. 11. The air purifier according to claim 10, wherein the collected water is fed to the nozzle.

12. The air purification device according to claim 11, further comprising a sterilizer disposed in the internal space of the cleaning tower and sterilizing water sprayed from the nozzles and stored in the bottom of the internal space of the cleaning tower.

13. The air purification device according to claim 12, wherein the sterilizer is an electrolytic sterilizer.

14. The air purification device according to claim 12, wherein the sterilizer is an ultraviolet irradiation device.

15. The air purification device according to claim 11, wherein water stored in a lower portion of the internal space of the cleaning tower is sterilized with residual chlorine.

[16] The air purification according to claim 11, wherein the effective chlorine concentration of the water stored in the lower part of the internal space of the washing tower is sterilized by setting the effective chlorine concentration to 0.1 mg / L or more and 10 mg / L or less. Equipment

17. The air purification device according to claim 11, wherein the effective chlorine concentration of the water stored in the lower part of the internal space of the washing tower is sterilized by setting it to 1 mg / L or more and 3 mg / L or less.

18. The air purification device according to claim 1, further comprising an eliminator that is disposed closer to the exhaust port than the nozzle in the internal space of the cleaning tower and captures water sprayed from the nozzle.

[19] The air purification device according to claim 1, further comprising a drain pipe connected to the cleaning tower above the bottom of the internal space of the cleaning tower and draining the water stored up to the water level at the connection point. .

[20] The air purification device according to claim 1, wherein the nozzle sprays tap water, pure water, acidic water, alkaline water, or a mixture of two or more thereof.

21. The air purification device according to claim 1, wherein the nozzle sprays pure water purified by a reverse osmosis device or an ion exchange device.

[22] Anodic water of the electrolysis apparatus obtained by supplying the concentrated water or brine purified by a reverse osmosis apparatus to the electrolysis apparatus, or an anode of an electrosoftening apparatus or an electroregenerative deionization apparatus The air purifier according to claim 1, which sprays water.

[23] Cathode water of the electrolysis device, cathodic water of an electrosoftening device, electric regenerative type obtained by supplying the concentrated water or brine purified by a reverse osmosis device to the electrolysis device. 2. The air purification apparatus according to claim 1, wherein the cathode water of the electrolysis apparatus obtained by supplying the deionizer cathode water or soft water to the electrolysis apparatus is sprayed.