WO1997042981A1 - Dispositif desodorisant et sterilisant possedant une fonction de detection de la deterioration d'un catalyseur - Google Patents
Dispositif desodorisant et sterilisant possedant une fonction de detection de la deterioration d'un catalyseur Download PDFInfo
- Publication number
- WO1997042981A1 WO1997042981A1 PCT/JP1997/001607 JP9701607W WO9742981A1 WO 1997042981 A1 WO1997042981 A1 WO 1997042981A1 JP 9701607 W JP9701607 W JP 9701607W WO 9742981 A1 WO9742981 A1 WO 9742981A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ozone
- catalyst
- concentration
- air
- deodorizing
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/10—Preparation of ozone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S422/00—Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
- Y10S422/90—Decreasing pollution or environmental impact
Definitions
- the present invention relates to a deodorizing / sterilizing apparatus using ozone. Background technology
- Zhizon> has a strong oxidizing effect and is used in many fields such as water treatment, medical treatment and food industry for the purpose of deodorization and sterilization in recent years. It has been done. In recent years, ozone has also attracted attention as a countermeasure against various types of odors in living spaces, and a number of devices using ozone have been developed.
- ozone exhibits useful effects.
- the ozone itself has a peculiar odor, and if the ozone is used for the equipment, it must be connected to the outside of the equipment. It is necessary to prevent the release of wastewater.'Therefore, the residual ozone after thermal treatment is decomposed by heat or decomposed by a catalyst. The method is being taken. Of these methods, a method using a catalyst is particularly common, or it is relatively simple and convenient. In the method of decomposing ozone using a catalyst with a high level of power, the activity of the catalyst depends on the use of time or the fluctuation of environmental conditions, etc. Drops in excess, causing excess concentrations of ozone to reach the outside of the device. There was concern that it would be discharged. Uncovering the invention
- the present invention provides a highly reliable deodorizing and sterilizing device that can prevent the remaining ozone from being discharged to the outside of the equipment even if the catalyst deteriorates.
- the present invention relates to an ozone generating section, a catalyst having a function of accelerating the deodorizing and disinfecting action of ozon and decomposing kapozon, and a catalyst for producing ozone.
- a catalyst having a function of accelerating the deodorizing and disinfecting action of ozon and decomposing kapozon
- a catalyst for producing ozone In the ozone deodorizing / sterilizing equipment equipped with an air supply unit, when the ozone concentration remaining after the treatment with the catalyst reaches a predetermined concentration or more, the ozone is released. After the specified time iyj has elapsed, the cycle of restarting the release of ozone is repeated, and when the remaining zonal concentration of reaches the specified concentration. If the interval between the points is shorter than the previously set question and the tendency is found at a predetermined frequency, it is determined that the catalyst has deteriorated. Function.
- the deodorizing / sterilizing device equipped with the catalyst deterioration detection function of the present invention discharges air into the air supply section that sucks air into the inside, and discharges ozone into the sucked air.
- An ozone sensor that detects the ozone concentration is provided, and the ozone sensor detects that the remaining zonal concentration is higher than a predetermined concentration.
- Cycle which stops the ozone emission of the ozone generation unit for a predetermined time, repeats the remaining ozone concentration between successive cycles. Where The interval between the points when the concentration was detected to be above a certain concentration was shorter than the specified interval.State The catalyst deteriorated when it was detected at the specified frequency. Judgment was made and a means was provided to stop the release of ozone.
- FIG. 1 is a schematic cross-sectional view showing the configuration of a deodorizing and sterilizing apparatus according to an embodiment of the present invention.
- Fig. 2 is a block diagram showing a small-sized system for determining the deterioration of the catalyst of this device.
- FIG. 3 is a flowchart illustrating a configuration of a signal processing unit of the device. Best mode for carrying out the invention
- Figure 1 shows the basic configuration of the deodorizing / sterilizing device with a catalyst deterioration detection function of this embodiment.
- the air outside the device is sucked into the device through the air inlet 6 by the fan 3.
- the filter 7 removes dust, dirt, and the like contained in the inflowing air.
- a predetermined amount of ozone generated by the ozon generator 1 is released to the air.
- the air and the ozone are almost uniformly mixed by the diffuser 8.
- pollutants such as odorous components and bacteria in the air are decomposed and removed.
- the air mixed with the ozone comes into contact with the catalyst 2, which promotes the decontamination and removal of the ozone from contaminants. As it progresses, the decomposition of the remaining ozone is promoted.
- the air inhaled into the device is degassed:! 3 ⁇ 4, sterilized and purified, and then purified by fan 3.
- the air is discharged from the air outlet 9 to the outside of the device.
- an ozone sensor 4 for detecting the residual ozone concentration of the air after the purification process is provided.c
- the ozon sensor 4 outputs a signal corresponding to the detected remaining line: ozon concentration to the signal processing unit 5.
- the signal processing section 5 includes a memory section 51, an operation section 52, and a control section 53, as indicated by I2.
- the air downstream of the catalyst 2 may be exhausted.
- the time required for the ozone concentration to reach the permissible limit hereinafter referred to as the reference detection interval
- the reference detection frequency for determining that the catalyst has deteriorated is stored.
- the calculation unit 52 generates a residual based on the output signal of the ozone sensor 4. Compare the concentration of the existing ozone with the upper limit concentration to determine whether the concentration is lower than the upper limit concentration. Here, if the arithmetic unit 52 determines that the remaining ozone concentration is higher than the allowable maximum concentration, the operation unit 52 causes the ozon generator 1 to perform the ozone generation. A signal is output to the control unit 53 for temporarily stopping the emission of the gas for a predetermined time. As a result, the residual ozone concentration drops once. When the ozone is released by the ozone generator 1 from the power source and the power source, the remaining ozone concentration increases again, and the allowable limit is increased. Exceeds concentration.
- the arithmetic unit 52 determines that the remaining ozone concentration is lower than the allowable upper limit concentration, and again, the remaining ozone concentration is allowed. Measure the time until it is determined that the concentration is above the upper limit (hereinafter referred to as the detection interval). When the detection interval becomes smaller than the reference detection interval, the arithmetic unit 52 counts the number of times, and then the reference detection set in advance. Compare with the number of known times. Here, when the number of times reaches the reference detection number, the arithmetic unit 52 determines that the catalyst 2 has deteriorated, and the control unit 53 gives the control unit 53 an ozone. Outputs a signal to stop emission of the ozone of generator 1.
- the control section 53 controls the ozone generator 1 by the signals of the operation section 52 and the like, and also controls the display, warning, and other signals. Control.
- the detection interval is longer than the reference detection interval, the activity of the catalyst 2 is determined to be normal, and the same cycle is repeated. You. As a result, the deodorization and sterilization treatment for the air will be continued. However, if the detection interval is shorter than the reference detection interval, and if the same slope is observed at a predetermined parameter, the catalyst is used. 2 is judged to have been inferior, and the release of ozone by the ozone generator 1 is stopped.
- the reference detection interval is set in consideration of the ozone release amount of the ozon generator 1 and the time when the release is temporarily stopped. In addition, the deterioration of the catalyst is indicated by an unshown force display and a warning sound.
- the ozone generator 1 is provided with a surface discharge type ozone generator composed of an inductive ⁇ electrode and a discharge electrode formed on an aluminum substrate. In addition, it generates ozone by so-called silent discharge.
- the catalyst 2 is in the form of a honeycomb having a volume of about 100 cm 3 and is made of a metal oxide containing Mn as a main component.
- the allowable upper limit concentration of residual ozone is set to 0.05 ppm, two consecutive reference detection intervals are set to three minutes, and one of ozone is set.
- the stop time was set to 30 seconds.
- the detection interval becomes shorter than the above-mentioned reference detection interval for five consecutive times, it is determined that the catalyst 2 has deteriorated. It was to be.
- step 101 it was determined that the activity of the catalyst 2 was reduced and the residual ozon concentration reached the allowable upper limit (0.05 ppm).
- the signal processing unit 5 When the signal processing unit 5 is set, the time point T at which the signal processing unit 5 becomes a start point is set. Time. At the same time, the signal processing unit 5 outputs a signal that causes the ozone generator 1 to temporarily stop ozone emission. As a result, the concentration of residual ozone is reduced once. Out release of Oh zone down release out stop Kaka et al plant constant time between t P (3 0 seconds) elapsed to that with your zone down the Ru is re-opened.
- step 102 when the remaining ozone concentration again becomes higher than the allowable upper limit concentration, the time point T is counted and the detection is performed.
- the knowledge interval (T, 1) is calculated.
- the release of the ozone is stopped.
- the ozone release is resumed, the remaining ozone concentration reaches the allowable upper limit concentration, and the detection interval (T réelle-ford -,: N repeats the same cycle to calculate the number of cycles.)
- the detection interval is continuously determined. Are counted as shorter than the standard detection interval (3 minutes).
- the detection interval is determined to be greater than or equal to the standard detection interval before this count number reaches 5 5, the number of counts per day will be increased.
- the cell is re-sent, and after a lapse of t, the same cycle is repeated, re-opening the ozone release and calculating the detection interval.
- step 104 when the number of counts reaches 5 times, that is, the detection interval is 5 times in succession and the base detection interval is lowered. 0
- the 3 ⁇ 4-processing unit 5 When turned, the 3 ⁇ 4-processing unit 5 outputs a signal to the ozon generator 1 to stop the ozone emission, and the device stops.
- the detection interval which was about 7 minutes immediately after the start of operation, gradually became shorter, becoming 2.5 minutes at the 30th cycle, and 3 minutes of reference detection. It is shorter than the interval. After that, the detection interval was about 2 minutes, and the cycle in which the detection interval was shorter than the reference detection interval was repeated five times in a row. At this point, ozone release was stopped.
- the H-type method for improving the accuracy of the detection of catalyst deterioration is used.
- the same device as that in the first embodiment is used, and the conditions for determining the deterioration of the catalyst are added to the same conditions as those in the first embodiment.
- the question and answer cycle is repeated a total of six times, the cycle force that is shorter than the reference detection interval of 3 minutes is less than 4 times. In such a case, it was decided that it would be degraded.
- this method even if the catalyst is in a state in which it should be determined that it has deteriorated in nature, for some reason, for example, the catalyst is released. It is possible to prevent erroneous judgments when the detection interval is smaller than the standard detection question m due to fluctuations in fan capacity, etc. it can.
- the concentration of ozone released by the ozon generator was set to 0.06 ppm.
- the detection interval is shorter than the reference detection interval.
- the oscillating generator is adjusted and released at the point of three consecutive continuation forces.
- the ozone concentration was 0.03 ppm.
- the detection interval was about 3.5 minutes.
- the concentration of the released ozone was returned to the initial state, and the next detection interval was less than 3 minutes. In this way, it was determined that the catalyst deteriorated at the stage where the detection interval of less than 3 minutes was detected 4 times in less than 3 minutes in a total of 6 detection cycles. The release of ozone was stopped.
- the equipment was operated continuously in the actual living environment and its function was confirmed.
- I n 2 0 3 S n ⁇ 2, C o 3 0 "N i O, Ru Oh C u O, V 2_Rei metallic oxidation products such as 5 have Can use these complex oxides, and the structure of the equipment must be in accordance with the performance of the equipment and the operating environment.
- the conditions for determining inferiority are not limited to the examples, for example, the detection interval below the standard detection interval. Industrial availability that can increase the number of mounts
- the present invention it is possible to reliably detect and judge the deterioration of the catalyst of the deodorizing / bactericidal device using ozone. An excessive amount of ozone can be prevented from being discharged to the outside.
- Deodorization with catalyst deterioration detection function of the present invention • Sterilization and concealment are widely used in many fields such as water treatment, medical treatment, and the food industry. There is expected.
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69725958T DE69725958T2 (de) | 1996-05-15 | 1997-05-13 | Verfahren zum Verhindern des Entweichens übermä igen Ozonmengen aus einer Vorrichtung zur Desodorisierung und Desinfizierung von Luft |
EP97918420A EP0852147B1 (en) | 1996-05-15 | 1997-05-13 | Method of preventing discharge of excessive amounts of ozone from an air deodorizing and disinfecting apparatus |
US08/981,823 US5961919A (en) | 1996-05-15 | 1997-05-13 | Deodorizing and sterilizing device having catalyst deterioration sensing function |
JP53975297A JP3504671B2 (ja) | 1996-05-15 | 1997-05-13 | 触媒劣化検知機能付き脱臭・殺菌装置および脱臭・殺菌装置からの過剰なオゾン放出の防止方法 |
KR1019980700322A KR100260122B1 (ko) | 1996-05-15 | 1997-05-13 | 촉매열화검지기능이부착된탈취·살균장치 |
HK99100334A HK1015285A1 (en) | 1996-05-15 | 1999-01-26 | Deodorizing and sterilizing device having catalyst deterioration sensing function |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12036696 | 1996-05-15 | ||
JP8/120366 | 1996-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997042981A1 true WO1997042981A1 (fr) | 1997-11-20 |
Family
ID=14784426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/001607 WO1997042981A1 (fr) | 1996-05-15 | 1997-05-13 | Dispositif desodorisant et sterilisant possedant une fonction de detection de la deterioration d'un catalyseur |
Country Status (8)
Country | Link |
---|---|
US (1) | US5961919A (ja) |
EP (1) | EP0852147B1 (ja) |
JP (1) | JP3504671B2 (ja) |
KR (1) | KR100260122B1 (ja) |
CN (1) | CN1120021C (ja) |
DE (1) | DE69725958T2 (ja) |
HK (1) | HK1015285A1 (ja) |
WO (1) | WO1997042981A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005125070A (ja) * | 2003-10-03 | 2005-05-19 | Daikin Ind Ltd | 空気浄化装置 |
JP2023015969A (ja) * | 2021-07-20 | 2023-02-01 | 日本特殊陶業株式会社 | オゾン発生器 |
Families Citing this family (21)
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CA2253690A1 (en) | 1998-11-09 | 2000-05-09 | Fantom Technologies Inc. | Method and apparatus for measuring the degree of treatment of a medium by a gas |
GB0003110D0 (en) * | 2000-02-10 | 2000-03-29 | Astec Microflow Ltd | Medical device disinfection |
EP1499836B1 (en) * | 2002-04-29 | 2015-06-10 | RHT Limited | Air cleaner filter system capable of nano-confined catalytic oxidation |
AU2003223137A1 (en) * | 2002-05-01 | 2003-11-17 | Smart Air Inc. | Air sterilizer using ozone |
US7449053B2 (en) | 2003-07-18 | 2008-11-11 | David Richard Hallam | Air filtration device |
CN100358585C (zh) * | 2004-10-27 | 2008-01-02 | 上海大学 | 具有输出臭氧浓度检测和调节功能的空气消毒装置 |
US20060218989A1 (en) * | 2005-03-30 | 2006-10-05 | Dominic Cianciarelli | Method and apparatus for monitoring catalytic abator efficiency |
US20070095649A1 (en) * | 2005-10-27 | 2007-05-03 | Alpine Technologies, Inc. | Ambient ozone control system |
KR100743251B1 (ko) * | 2006-01-20 | 2007-07-27 | 강릉대학교산학협력단 | 실내 가스 감지 장치 및 실내 공기 정화 시스템 |
US20080159907A1 (en) * | 2006-12-29 | 2008-07-03 | Joshi Anand G | Methods and apparatus for disinfecting and/or deodorizing an article |
CN103127967B (zh) * | 2013-03-19 | 2014-12-31 | 上海博迅实业有限公司 | 光触媒灭菌生物安全柜 |
CN103127966B (zh) * | 2013-03-19 | 2014-12-31 | 上海博迅实业有限公司 | 光触媒来灭菌生物安全柜控制系统 |
CN103127965B (zh) * | 2013-03-19 | 2014-12-31 | 上海博迅实业有限公司 | 无污染生物安全柜控制系统 |
CN103223356B (zh) * | 2013-03-19 | 2015-05-20 | 上海博迅实业有限公司 | 洁净生物安全柜控制系统 |
EP3720512A1 (en) | 2017-12-08 | 2020-10-14 | Oshkosh Corporation | Ozone cleaning system |
CN108815543B (zh) * | 2018-09-07 | 2024-01-30 | 重庆婴淘淘网络科技有限公司 | 智能自动快速消毒机 |
US10792613B1 (en) | 2019-03-11 | 2020-10-06 | Oshkosh Corporation | Cleaning device |
CN113087114A (zh) * | 2020-07-15 | 2021-07-09 | 昆山中环科本科技发展有限公司 | 一种下置催化剂臭氧催化反应器及其工艺 |
CN112856757B (zh) * | 2021-01-29 | 2022-05-31 | 重庆海尔空调器有限公司 | 空调器的杀菌控制方法及空调器 |
US11471551B1 (en) | 2021-09-09 | 2022-10-18 | Micron Pure, Llc | Apparatus for inactivation of airborne pathogens |
US11648329B1 (en) | 2021-11-24 | 2023-05-16 | Rht Limited | Air purifiers |
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JPH04138167A (ja) * | 1990-09-28 | 1992-05-12 | Daikin Ind Ltd | オゾン脱臭機 |
JPH07299128A (ja) * | 1994-05-06 | 1995-11-14 | Sanyo Electric Co Ltd | 脱臭殺菌装置 |
JPH0975436A (ja) * | 1995-09-08 | 1997-03-25 | Hitachi Ltd | 空気清浄装置およびオゾン検出センサ |
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1997
- 1997-05-13 CN CN97190520A patent/CN1120021C/zh not_active Expired - Fee Related
- 1997-05-13 DE DE69725958T patent/DE69725958T2/de not_active Expired - Fee Related
- 1997-05-13 WO PCT/JP1997/001607 patent/WO1997042981A1/ja active IP Right Grant
- 1997-05-13 US US08/981,823 patent/US5961919A/en not_active Expired - Fee Related
- 1997-05-13 EP EP97918420A patent/EP0852147B1/en not_active Expired - Lifetime
- 1997-05-13 KR KR1019980700322A patent/KR100260122B1/ko not_active IP Right Cessation
- 1997-05-13 JP JP53975297A patent/JP3504671B2/ja not_active Expired - Fee Related
-
1999
- 1999-01-26 HK HK99100334A patent/HK1015285A1/xx not_active IP Right Cessation
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JPH04138167A (ja) * | 1990-09-28 | 1992-05-12 | Daikin Ind Ltd | オゾン脱臭機 |
JPH07299128A (ja) * | 1994-05-06 | 1995-11-14 | Sanyo Electric Co Ltd | 脱臭殺菌装置 |
JPH0975436A (ja) * | 1995-09-08 | 1997-03-25 | Hitachi Ltd | 空気清浄装置およびオゾン検出センサ |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005125070A (ja) * | 2003-10-03 | 2005-05-19 | Daikin Ind Ltd | 空気浄化装置 |
JP2023015969A (ja) * | 2021-07-20 | 2023-02-01 | 日本特殊陶業株式会社 | オゾン発生器 |
JP7320047B2 (ja) | 2021-07-20 | 2023-08-02 | 日本特殊陶業株式会社 | オゾン発生器 |
Also Published As
Publication number | Publication date |
---|---|
EP0852147A1 (en) | 1998-07-08 |
DE69725958T2 (de) | 2004-09-02 |
CN1120021C (zh) | 2003-09-03 |
DE69725958D1 (de) | 2003-12-11 |
CN1193281A (zh) | 1998-09-16 |
KR100260122B1 (ko) | 2001-11-22 |
KR19990029019A (ko) | 1999-04-15 |
US5961919A (en) | 1999-10-05 |
EP0852147B1 (en) | 2003-11-05 |
HK1015285A1 (en) | 1999-10-15 |
JP3504671B2 (ja) | 2004-03-08 |
EP0852147A4 (en) | 2001-10-10 |
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