WO2005105268A1 - 空気浄化方法及びその装置 - Google Patents
空気浄化方法及びその装置 Download PDFInfo
- Publication number
- WO2005105268A1 WO2005105268A1 PCT/JP2005/007907 JP2005007907W WO2005105268A1 WO 2005105268 A1 WO2005105268 A1 WO 2005105268A1 JP 2005007907 W JP2005007907 W JP 2005007907W WO 2005105268 A1 WO2005105268 A1 WO 2005105268A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- air
- circulation path
- air purification
- ultraviolet
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
Definitions
- the present invention relates to an air purification method and apparatus for performing air purification by dissolving and removing harmful gas components in air by using a porous membrane.
- Patent No. 3227367 discloses a technique of replacing gas-dissolved water having a higher concentration of gas components with pure water at regular intervals of operation time.
- Japanese Patent Application Laid-Open No. 11-267428 discloses an apparatus for installing an ion exchange resin in a water circulation path, removing impurity ions dissolved and recovered in the water by the ion exchange resin, and regenerating the water. Has been disclosed. Disclosure of the invention
- the present invention in the air purification method for dissolving and removing gas components contained in air flowing through an air circulation path in water circulating through a water circulation path, the water in which the gas components have been dissolved is removed. Irradiate with ultraviolet light.
- the water circulating in the water circulation path is irradiated with the ultraviolet rays, and the water can be regenerated by performing continuous air purification while maintaining the air purification operation.
- the comfort of the air conditioning environment will be improved.
- the water can be regenerated by an extremely simple method of irradiating with ultraviolet rays, the regenerating operation can be performed easily and quickly, and the maintenance of the air purifying apparatus can be easily performed. It becomes. Furthermore, since water is regenerated by irradiation with ultraviolet rays, no water is discharged. Replenishment of pure water may be performed only in an amount corresponding to a decrease due to evaporation of water passing through the water circulation path. Therefore, the amount of pure water to be supplied is extremely small, and the running cost is reduced.
- water is temporarily stored in the middle of the water circulation path, and the stored water is irradiated with upward ultraviolet light.
- no special mechanism or the like is provided for irradiating the ultraviolet rays. Therefore, it can be easily applied to existing air purification devices.
- the stored water is made shallow and irradiated with ultraviolet rays.
- the attenuation of the ultraviolet rays due to the water is suppressed by the shallow water depth, and the gas components are efficiently decomposed and removed.
- water is temporarily stored in the middle of the water circulation path, and ultraviolet light is irradiated inside the stored water.
- ultraviolet light is irradiated inside the stored water.
- water is temporarily stored in the middle of a water circulation path, a photocatalyst is immersed in the stored water, and the water is irradiated with ultraviolet rays.
- the photocatalyst activated by the irradiation of ultraviolet rays promotes the decomposition of water gas components by the irradiation of ultraviolet rays.
- the water circulating in the water circulation path is directly irradiated with ultraviolet rays.
- the entire amount of water is evenly irradiated with ultraviolet rays, and the efficiency of removing gas components in water is improved.
- the ultraviolet irradiation means is arranged in the middle of the water circulation path.
- the entire amount of water flowing through the circulation path can be uniformly irradiated with ultraviolet rays, and the efficiency of removing gas components from the water is improved.
- FIG. 1 is a system diagram of an air purifying apparatus according to a first embodiment of the present invention.
- FIG. 2 is a system diagram of an air purifying apparatus according to a second embodiment of the present invention.
- FIG. 3 is a system diagram of an air purifying apparatus according to a third embodiment of the present invention.
- FIG. 4 is a system diagram of an air purifying apparatus according to a fourth embodiment of the present invention.
- FIG. 5 is a system diagram of an air purifying apparatus according to a fifth embodiment of the present invention.
- FIG. 1 shows an air purifying apparatus according to a first embodiment of the present invention.
- This device has a gas removal element 1 with a porous membrane 4 that allows the passage of gas and blocks the passage of liquid.
- An air circulation path Y and a water circulation path X are connected to the gas removal element 1, respectively.
- air to be purified in-room air when applied to an air conditioning system
- water W circulating through the water circulation path X is flowed. Included in air The rare gas component is dissolved in the water W through the porous membrane 4, and the air is cleaned.
- the water circulation path X is a forward path 21 that connects the discharge port of the circulation pump 5 and the water inlet la of the gas removal element 1, and a return path that connects the water outlet lb of the removal element 1 and the suction port of the pump 5.
- a water circulation path 2 composed of 22 is provided.
- a flow rate adjusting valve 7 and a flow meter 6 are sequentially provided from the upstream side to the downstream side.
- the return tank 22 is provided with a water tank 11 having a required volume.
- the return tank 22 is provided by the side water tank 11 so that a first path 22a from the outlet lb of the removal element 1 to the tank 11 and a tank 11 are provided. Is divided into a second passage 22b extending from the pump 5 to the suction port of the pump 5.
- the first passage 22a is connected to a branch passage 23 having a passage opening / closing valve 8, and the branch passage 23 is connected to a drain passage 24 from the tank 11.
- An electric valve 9 for automatically supplying pure water WO to the tank 11 and a valve 10 for opening and closing the passage are arranged in the pure water supply path 3 connected to the tank 11.
- an ultraviolet lamp 13 as an ultraviolet irradiation means is arranged facing the water W in the tank 11.
- the gas component is dissolved in the water W by the removal element 1, so that the water W circulates in the water circulation path 2 while gradually increasing the gas component concentration, but is disposed above the tank 11.
- the UV lamp 13 irradiates the water W in the tank 11 with UV light. Therefore, the gas components contained in the water W are decomposed by the resolution based on the strong oxidizing property of the ultraviolet light. For this reason, the concentration of the gas component in the water W decreases, and the water W recovers its ability to dissolve the gas component, and the water W is regenerated.
- Such regeneration of the water W is performed constantly or at predetermined time intervals along with the circulation of the water W, and the water W having a high ability to dissolve the gas component is constantly flown to the removal element 1. Therefore, in the removal element 1, the gas component is efficiently dissolved in the water W, and high air purification performance is ensured.
- the water W circulating in the water circulation path X is irradiated with ultraviolet rays by the ultraviolet lamp 13 to regenerate the water W
- the water W can be regenerated continuously while the air purification operation is continued. It can be done on a regular basis.
- the air A is used as the conditioned air, clean air is continuously supplied, and the comfort of the conditioned environment is improved.
- Regeneration of water W is performed by an extremely simple method of irradiation with ultraviolet rays. Therefore, the operation related to the regeneration of the water W is simplified and speeded up as compared with the case where the water W is replaced and the regeneration is performed.
- pure water needs to be replenished only in an amount corresponding to a decrease due to evaporation of the water W flowing through the water circulation path X. Therefore, compared with the conventional example in which the water W is regenerated by exchanging the water W, the amount of pure water supplied to the water circulation path X is extremely small, and the running cost associated with air purification is reduced.
- FIG. 2 shows an air purification device according to a second embodiment of the present invention.
- the air purification device of the second embodiment is different from the first embodiment in that the ultraviolet lamp 13 is immersed in the water W of the tank 12 and arranged.
- the surrounding water W is irradiated with the ultraviolet light by the ultraviolet lamp 13 immersed in the water W
- the external force of the water W is compared with the case where the ultraviolet light is irradiated toward the water W.
- the attenuation of ultraviolet rays due to water is suppressed to a low level, and gas components are efficiently decomposed and removed, so that a higher level of air purification is secured.
- FIG. 3 shows a third embodiment of the present invention.
- the ultraviolet lamp 13 is arranged so as to irradiate toward the outside force tank 11 of the tank 11, and the inside of the tank 11 Photocatalyst 14 is immersed in water W. Since the ultraviolet light emitted from the lamp 13 needs to reach the water W in the tank 11, a transparent portion is provided on the surface of the tank 11 facing the lamp 13.
- the water W flows through the photocatalyst 14, which has been activated by receiving ultraviolet rays from the ultraviolet lamp 13, so that the gas component in the water W is decomposed by ultraviolet irradiation. Is done. Therefore, the gas components in the air A can be more efficiently removed, and a higher air purification can be realized.
- FIG. 4 shows a fourth embodiment of the present invention.
- the air purification device of this embodiment includes a second tank 12 having a shallow bottom in addition to the tank 11, and these tanks 11 and 12 are connected by a third path 22c having a valve 15! .
- the ultraviolet lamp 13 irradiates the water W in the upper tank 12 above the second tank 12 with ultraviolet light.
- the second tank 12 to which the ultraviolet irradiation is performed has a shallow bottom. Therefore, compared with the case where the ultraviolet ray is irradiated into the tank 11 having a deep bottom, the attenuation of the ultraviolet ray due to the water is suppressed because the water depth is small. As a result, the gas components contained in the water W can be more effectively decomposed and removed by irradiation with ultraviolet rays. Thus, an air purification device having higher air purification ability can be provided.
- FIG. 5 shows a fifth embodiment of the present invention.
- the ultraviolet lamp 13 is disposed in the return path 22.
- the ultraviolet irradiation lamp 13 provided in the middle of the return path 22 can uniformly irradiate the water W passing through the return path 22 with ultraviolet light. The efficiency of removing gas components in water W by irradiation is improved.
- the degree of freedom of arrangement of the ultraviolet lamps 13 at the time of designing the air purifying device is not limited.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Gas Separation By Absorption (AREA)
- Physical Water Treatments (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Catalysts (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-134942 | 2004-04-30 | ||
JP2004134942A JP2005313094A (ja) | 2004-04-30 | 2004-04-30 | 空気浄化方法及びその装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005105268A1 true WO2005105268A1 (ja) | 2005-11-10 |
Family
ID=35241471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/007907 WO2005105268A1 (ja) | 2004-04-30 | 2005-04-26 | 空気浄化方法及びその装置 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2005313094A (ja) |
TW (1) | TWI258386B (ja) |
WO (1) | WO2005105268A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102188907B (zh) * | 2010-03-18 | 2014-01-01 | 清华大学 | 有害物质去除装置及使用其进行空气净化的空气净化装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0671130A (ja) * | 1992-08-28 | 1994-03-15 | Ebara Corp | 水溶性有機物蒸気を含むガスの処理装置 |
JPH0824629A (ja) * | 1994-07-08 | 1996-01-30 | Kurita Water Ind Ltd | 光触媒反応槽 |
-
2004
- 2004-04-30 JP JP2004134942A patent/JP2005313094A/ja active Pending
-
2005
- 2005-04-26 TW TW94113346A patent/TWI258386B/zh not_active IP Right Cessation
- 2005-04-26 WO PCT/JP2005/007907 patent/WO2005105268A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0671130A (ja) * | 1992-08-28 | 1994-03-15 | Ebara Corp | 水溶性有機物蒸気を含むガスの処理装置 |
JPH0824629A (ja) * | 1994-07-08 | 1996-01-30 | Kurita Water Ind Ltd | 光触媒反応槽 |
Also Published As
Publication number | Publication date |
---|---|
TW200539930A (en) | 2005-12-16 |
TWI258386B (en) | 2006-07-21 |
JP2005313094A (ja) | 2005-11-10 |
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