JPH0368419A - Deodorizing device and air cleaner using it - Google Patents
Deodorizing device and air cleaner using itInfo
- Publication number
- JPH0368419A JPH0368419A JP1202851A JP20285189A JPH0368419A JP H0368419 A JPH0368419 A JP H0368419A JP 1202851 A JP1202851 A JP 1202851A JP 20285189 A JP20285189 A JP 20285189A JP H0368419 A JPH0368419 A JP H0368419A
- Authority
- JP
- Japan
- Prior art keywords
- adsorbent
- deodorizing device
- oxidation catalyst
- odor components
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001877 deodorizing effect Effects 0.000 title claims abstract description 34
- 239000003463 adsorbent Substances 0.000 claims abstract description 67
- 239000003054 catalyst Substances 0.000 claims abstract description 47
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 238000007254 oxidation reaction Methods 0.000 claims description 37
- 230000003647 oxidation Effects 0.000 claims description 36
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 18
- 230000001590 oxidative effect Effects 0.000 abstract description 8
- 229910000428 cobalt oxide Inorganic materials 0.000 abstract description 6
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 abstract description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 241000264877 Hippospongia communis Species 0.000 abstract 2
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 abstract 1
- 238000003795 desorption Methods 0.000 abstract 1
- 238000005485 electric heating Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 235000019645 odor Nutrition 0.000 description 25
- 238000001179 sorption measurement Methods 0.000 description 18
- 239000000428 dust Substances 0.000 description 10
- 238000004332 deodorization Methods 0.000 description 6
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 238000006864 oxidative decomposition reaction Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 description 3
- 229910001981 cobalt nitrate Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- -1 iron ion Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Treating Waste Gases (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は脱臭装置とそれを用いた空気清浄装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a deodorizing device and an air purifying device using the same.
［従来の技術］
従来の脱臭装置としては、空気流路と直交するように脱
臭用フィルタユニットを設置し、この脱臭用フィルタユ
ニットに装着する吸着剤としては、例えば粒状活性炭あ
るいは二価鉄イオン吸着剤等を用いて脱臭するようにな
っている。この種の装置として関連するものには、例え
ば特開昭６１−２６８９３０号広報が挙げられる。[Prior Art] In a conventional deodorizing device, a deodorizing filter unit is installed perpendicular to the air flow path, and the adsorbent attached to this deodorizing filter unit is, for example, granular activated carbon or divalent iron ion adsorption agent. Deodorizing agents are used to remove odors. Related devices of this type include, for example, Japanese Unexamined Patent Publication No. 61-268930.
［発明が解決しようとする課題］
上記従来技術においては、一定時間使用し活性炭等の脱
臭吸着剤が劣化してくると当然のことながらこの吸着剤
を交換せざるを得なかった。この交換においては、脱臭
剤の劣化の度合いの判断が困難で、早すぎるとまだ吸着
能力があるにも拘らず廃棄してしまうとか、逆に遅すぎ
ると既に吸着能力が無くなっているのに放置してしまう
ということになり、経済的にも性能的にも問題があった
。[Problems to be Solved by the Invention] In the above-mentioned conventional technology, when the deodorizing adsorbent such as activated carbon deteriorates after being used for a certain period of time, it is natural that this adsorbent has to be replaced. When replacing this deodorizer, it is difficult to judge the degree of deterioration of the deodorizer; if it is too early, it may be discarded even though it still has adsorption capacity, or if it is too late, it may be left unused even though it has already lost its adsorption capacity. This resulted in problems both economically and in terms of performance.
また、交換すること自体わずられしく手間がかかること
でもあった。In addition, replacing it itself was a hassle and time-consuming task.
したがって、本発明の目的は、このような従来技術の問
題点を解消し、活性炭等の吸着剤の劣化防止のために吸
着剤をクリーニングつまり、再生する手段を備えた改良
された脱臭装置とそれを用いた空気清浄装置を提供する
ことにあり、これにより、長期間メインテナンスフリー
で安定して使用可能な装置を実現しようというものであ
る。Therefore, an object of the present invention is to solve the problems of the prior art and provide an improved deodorizing device equipped with means for cleaning or regenerating an adsorbent such as activated carbon in order to prevent deterioration of the adsorbent. The purpose of the present invention is to provide an air purifying device using the air purifying device, thereby realizing a device that can be used stably and without maintenance for a long period of time.
［課題を解決するための手段］
上記目的は、空気中の臭気成分を吸着剤を通して除去す
る脱臭装置において、臭気成分を吸着する吸着剤と、前
記吸着剤の表面または近傍に加熱により活性化され臭気
成分を酸化分解する酸化触媒と、これら吸着剤及び酸化
触媒を所定温度に加熱する加熱手段とを具備してなる脱
臭装置により、達成される。[Means for Solving the Problems] The above object is to provide a deodorizing device that removes odor components from the air through an adsorbent, which includes an adsorbent that adsorbs the odor components, and an adsorbent that is activated by heating on or near the surface of the adsorbent. This is achieved by a deodorizing device comprising an oxidation catalyst that oxidizes and decomposes odor components, and a heating means that heats the adsorbent and oxidation catalyst to a predetermined temperature.
そして、好ましくは、上記吸着剤を少なくとも１対の酸
化触媒層で挟み込み、さらにその外側に隣接して加熱ヒ
ーターを設置し、通風順序が加熱ヒーター、酸化触媒層
、吸着剤、酸化触媒層及び加熱ヒーターの順となるよう
直列に配列してなる脱臭装置により。Preferably, the adsorbent is sandwiched between at least one pair of oxidation catalyst layers, and a heating heater is installed adjacent to the outside thereof, and the ventilation order is the heating heater, the oxidation catalyst layer, the adsorbent, the oxidation catalyst layer, and the heating. The deodorizing device is arranged in series in the order of the heater.
さらにまた好ましくは、上記吸着剤表面を酸化触媒層で
被覆してなる脱臭装置により、達成される。Still more preferably, this is achieved by a deodorizing device in which the surface of the adsorbent is coated with an oxidation catalyst layer.
また、空気清浄装置としては、空気導入口と排出口との
間に上記の脱臭装置を配設してなり、しかも前記脱臭装
置の空気排出口側における臭気成分を検出するガス検出
手段と、このガス検出手段の検出出力にもとずいて前記
脱臭装置の加熱手段を所定時間駆動させるオン−オフ制
御手段とを具備してなる空気清浄装置により、達成され
る。The air purifying device may include the above deodorizing device disposed between an air inlet and an air outlet, and gas detection means for detecting odor components on the air outlet side of the deodorizing device; This is achieved by an air cleaning device comprising an on-off control means for driving the heating means of the deodorizing device for a predetermined period of time based on the detection output of the gas detection means.
なお、さらに装置構成を単純化するために、このガス検
出手段の代わりに、タイマーを設置し。In order to further simplify the device configuration, a timer was installed in place of this gas detection means.
このタイマーからの出力により一定時間間隔で加熱手段
をオンーオフ邸動させるようにしてもよい。The heating means may be turned on and off at regular intervals based on the output from this timer.
上記吸着剤としては、周知の例えば活性炭、ゼオライト
、多孔質セラミックス、シリカゲルの単体か、またはそ
の複合体などが、また、形状としては、ハニカム状、ス
ポンジ状、あるいは網状、織物繊維状、板状、粒状等の
成形体が用いられる。The above-mentioned adsorbent may be well-known, such as activated carbon, zeolite, porous ceramics, or silica gel, or a composite thereof.The adsorbent may be in the form of a honeycomb, a sponge, a net, a textile fiber, or a plate. , granular, etc. molded bodies are used.
また、上記酸化触媒としては、その活性成分が周知の例
えばコバルト、マンガン、銅、鉄、ニッケル、銀、白金
、パラジウムの中から選ばれた少なくとも１種を含有す
るものが、また、その形状としては、上記吸着剤と同等
のものが用いられる。The oxidation catalyst may include one whose active component is at least one selected from well-known cobalt, manganese, copper, iron, nickel, silver, platinum, and palladium. The same adsorbent as the above-mentioned adsorbent is used.
なお、触媒活性成分の種類によっては、上記吸着剤の表
面に付着させても良い。Note that depending on the type of catalytically active component, it may be attached to the surface of the adsorbent.
［作用］
本発明の脱臭装置は熱により活性化される酸化触媒と、
臭気成分を吸着する吸着剤と、酸化触媒と吸着剤を加熱
する加熱手段とを組合わせたものであり、通常の脱臭運
転の場合は加熱せず吸着剤部に通風させて吸着により臭
気成分を除去して脱臭する。一定時間使用後は、吸着剤
のクリーニング再生として通風を停止し、加熱手段によ
り吸着剤および酸化触媒を一定時間加熱する。この加熱
により吸着剤の吸着保持量が低下するので、すでに吸着
剤に吸着されていた臭気成分の一部又は全部（加熱処理
条件による）は温度上昇と共に除除に吸着剤から放出さ
れる。放出された臭気成分は加熱により活性化している
酸化触媒の酸化作用により酸化分解されて除去される。[Operation] The deodorizing device of the present invention includes an oxidation catalyst that is activated by heat,
It is a combination of an adsorbent that adsorbs odor components, an oxidation catalyst, and a heating means that heats the adsorbent.In normal deodorizing operation, the adsorbent section is ventilated without heating, and the odor components are removed by adsorption. Remove and deodorize. After use for a certain period of time, the ventilation is stopped to clean and regenerate the adsorbent, and the adsorbent and oxidation catalyst are heated by the heating means for a certain period of time. This heating reduces the adsorption capacity of the adsorbent, so that part or all (depending on the heat treatment conditions) of the odor components already adsorbed on the adsorbent are gradually released from the adsorbent as the temperature rises. The released odor components are oxidized and decomposed by the oxidation action of the oxidation catalyst activated by heating and removed.
また、通風運転時に加熱すれば、吸着剤は吸着保持量が
低下しているので吸着せず、直接酸化触媒が臭気成分を
酸化分解する。Furthermore, if the adsorbent is heated during ventilation operation, the adsorbent will not adsorb since the amount of adsorption and retention has decreased, and the oxidation catalyst will directly oxidize and decompose the odor components.
［実施例］
以下、本発明の一実施例を第１図〜第３図にょり説明す
る。[Example] Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3.
第１図おいて、５は空気清浄装置本体、１は空気中の粉
塵を除去する静電フィルター、２は本発明の脱臭装置、
３は送風ファン、４は風向板である。静電フィルターｌ
は、放電線１１と集塵電極１２とからなっており、放電
線１１と集塵電極１２との間に数ＫＶの電圧を印加し、
コロナ放電を発生させて通風空気中の粉塵を帯電させ、
集塵電極１２に静電気力で引きつけて集塵する構造とむ
っている。In FIG. 1, 5 is the main body of the air purifying device, 1 is an electrostatic filter that removes dust in the air, 2 is the deodorizing device of the present invention,
3 is a blower fan, and 4 is a wind direction plate. electrostatic filter l
consists of a discharge wire 11 and a dust collection electrode 12, and a voltage of several KV is applied between the discharge wire 11 and the dust collection electrode 12,
Generates corona discharge to charge dust in the ventilated air,
It is designed to collect dust by attracting it to the dust collecting electrode 12 using electrostatic force.
脱臭装置２は、第２図の組立構成斜視図に示した如く、
酸化触媒２１で吸着剤２２をサンドイッチするような形
で設置し、さらにその外側に電熱線の加熱ヒータ２３を
加熱手段として設置した構造となっている。この構造に
より初めに酸化触媒２１が加熱されて活性化し１次に吸
着剤２２が加熱されるので、吸着剤２２の臭気成分の放
出は常に酸化触媒２１が活性化された後に行なわれ、臭
気成分を漏れなく分解し無臭化できる。The deodorizing device 2, as shown in the assembled configuration perspective view of FIG.
The structure is such that an adsorbent 22 is sandwiched between an oxidation catalyst 21 and a heater 23 made of a heating wire is installed outside of the adsorbent 22 as a heating means. With this structure, the oxidation catalyst 21 is first heated and activated, and then the adsorbent 22 is heated, so the release of odor components from the adsorption agent 22 is always performed after the oxidation catalyst 21 is activated, and the odor components It can completely decompose and make it odorless.
酸化触媒２１としては、例えば臭気ガスとしてアセトア
ルデヒドガスを対象とした場合は、酸化コバルト系（Ｃ
ｏ Ｏ、（： ０３０４）を添着したアルミナハニカム
を用いることができる。The oxidation catalyst 21 may be cobalt oxide based (C
An alumina honeycomb impregnated with o O, (: 0304) can be used.
なお、酸化コバルト系触媒の製造方法は、例えば硝酸コ
バルト（Ｃｏ （Ｎｏ−） ａ）の水溶液に。The cobalt oxide catalyst can be produced using, for example, an aqueous solution of cobalt nitrate (Co (No-) a).
アルミナハニカムを浸漬して硝酸コバルトを付着させ、
予ａ乾燥後約３００℃で硝酸コバルトを熱分解、酸化す
ることにより得られる。Dip alumina honeycomb to attach cobalt nitrate,
It is obtained by thermally decomposing and oxidizing cobalt nitrate at about 300°C after pre-drying.
なお、酸化コバルト系触媒の担体の形状は本実施例のよ
うに必ずしもハニカム構造である必要はなく、スポンジ
状、網状１ｗ＆維状、板状、粒状であってもよい、また
、材質は形状とのかねあいで金属にセラミック被環処理
したもの、あるいはセラミックスそのものを使用するこ
とができる。The shape of the carrier for the cobalt oxide catalyst does not necessarily have to be a honeycomb structure as in this example, but may be sponge-like, net-like, fibrous, plate-like, or granular. For this purpose, a metal coated with ceramic or ceramic itself can be used.
吸着剤２２としては、例えばハニカム状に形成された活
性炭を用いることができるが、形状的にはスポンジ状、
網状、繊維状、板状１粒状であってもよい、また、活性
炭以外にも材質としては。As the adsorbent 22, for example, activated carbon formed in a honeycomb shape can be used, but the shape may be sponge-like,
It may be reticulated, fibrous, or plate-like, and may be made of other materials besides activated carbon.
ゼオライト、多孔質セラミックス、シリカゲルの単体ま
たは複合体をも用いることができる。Zeolites, porous ceramics, and silica gel alone or in combination can also be used.
さらにまた、本実施例においては吸着剤２２と酸化触媒
２１を別々に設置しているが、吸着剤の表面に酸化触媒
層を設けるようにしてもよい、この場合には、酸化触媒
が吸着剤と一体構造になることから構成が単純化され、
コンパクトな脱臭装置を実現することが可能となり望ま
しい。Furthermore, although the adsorbent 22 and the oxidation catalyst 21 are installed separately in this embodiment, an oxidation catalyst layer may be provided on the surface of the adsorbent. In this case, the oxidation catalyst The configuration is simplified because it is integrated with the
It is possible and desirable to realize a compact deodorizing device.
第１表に本実施例による空気清浄装置を用いた５つの運
転パターン例を示し、以下、各パターン毎に運転内容を
詳述する。Table 1 shows five examples of operation patterns using the air purifier according to this embodiment, and the operation details for each pattern will be described in detail below.
以下め〈白
第１表：運転パターン
注）○印：スイッチＯＮ（通電〉
一印：スイッチ０ＦＦ
（１）除塵、脱臭、暖房：
室内空気を通風すると、まず静電フィルター１で粉塵が
除去され、加熱ヒータ２３により酸化触媒２１が加熱さ
れて活性化し、通風する空気中の臭気成分を酸化分解す
る。なお、吸着剤２２は、加熱されているので吸着能が
低下しており、脱臭は吸着ではなく酸化触媒２１の酸化
分解により行なわれる。また、加熱ヒータ２３により通
風空気は加熱されることになり、室内暖房としても使用
することができる。Below (White Table 1: Operation pattern note) ○ mark: Switch ON (energized) Single mark: Switch 0FF (1) Dust removal, deodorization, heating: When indoor air is ventilated, dust is first removed by the electrostatic filter 1. The oxidation catalyst 21 is heated and activated by the heater 23, and oxidizes and decomposes odor components in the ventilated air.Since the adsorbent 22 is heated, its adsorption capacity is reduced, and deodorization is performed by adsorption. Instead, it is carried out by oxidative decomposition of the oxidation catalyst 21.Furthermore, the ventilated air is heated by the heater 23, so that it can also be used for room heating.
（２）除塵、脱臭：
室内空気を通風すると、まず静電フィルター１で粉塵が
除去され、次に吸着剤２２により臭気成分が吸着除去さ
れて脱臭される。なお、酸化触媒２１は加熱されておら
ず常温であるので、あまり活性でなく酸化分解はほとん
ど起こらない。(2) Dust removal and deodorization: When indoor air is ventilated, dust is first removed by the electrostatic filter 1, and then odor components are adsorbed and removed by the adsorbent 22 to be deodorized. Note that since the oxidation catalyst 21 is not heated and is at room temperature, it is not very active and almost no oxidative decomposition occurs.
（３）脱臭、暖房：
室内空気を通風すると、加熱されて活性化した酸化触媒
２１が臭気成分を酸化分解する。なお、吸着剤２２は加
熱されているので吸着能が低下しており、脱臭は主とし
て前記の酸化触媒２１の酸化分解により行なわれる。ま
た、加熱ヒータ２３により通風空気は加熱されることに
なり、室内暖房としても使用することができる
（４）脱臭：
室内空気を通風すると、吸着剤２２により臭気成分は吸
着除去されて脱臭される。なお、酸化触媒２１は常温で
あるのであまり活性でなく、酸化分解はほとんど起こら
ない。(3) Deodorization and heating: When indoor air is ventilated, the heated and activated oxidation catalyst 21 oxidizes and decomposes odor components. Note that since the adsorbent 22 is heated, its adsorption capacity is reduced, and deodorization is mainly performed by oxidative decomposition of the oxidation catalyst 21 described above. In addition, the ventilated air is heated by the heater 23, and can be used as indoor heating. (4) Deodorization: When indoor air is ventilated, odor components are adsorbed and removed by the adsorbent 22 and deodorized. . Note that since the oxidation catalyst 21 is at room temperature, it is not very active and almost no oxidative decomposition occurs.
（５）吸着剤クリーニング：
室内空気は通風せずに加熱ヒータ２３に通電して吸着剤
２２と酸化触媒２１を加熱することにより、吸着剤２２
の吸着していた臭気成分を放出させ、放出させた臭気成
分を加熱により活性化している酸化触媒２１で酸化分解
して除去し、吸着剤２２のクリーニング（再生）を行な
う。(5) Adsorbent cleaning: The adsorbent 22 is heated by heating the adsorbent 22 and the oxidation catalyst 21 by energizing the heater 23 without ventilation of the indoor air.
The adsorbent 22 is cleaned (regenerated) by releasing the adsorbed odor components, and oxidizing and decomposing the emitted odor components using the oxidation catalyst 21 activated by heating to remove them.
以上、５つの運転パターンの例について説明したが、こ
れら運転パターンの内、（２）または（４）の運転後は
、いずれも吸着剤を再生するために（５）の吸着剤クリ
ーニング運転を行なう必要がある。Examples of five operation patterns have been explained above, and after operation (2) or (4) of these operation patterns, adsorbent cleaning operation (5) is performed in order to regenerate the adsorbent. There is a need.
次に、第３図によりさらに吸着剤のクリーニングについ
て詳述する。吸着剤の吸着量と温度の関係は、第３図の
グラフに示す通りであり、低温では吸着保持量が大きく
、高温になるにしたがい小さくなる。吸着剤に通風して
臭気成分を吸着した後、加熱してこの臭気成分を脱着放
出させクリーニングする場合には、吸着時の温度Ａにお
ける吸着保持量ａから、加熱によるクリーニング時の温
度Ｂにおける吸着保持ｍｂを差し引いた分量（ａ−ｂ）
だけ吸着剤は臭気成分を放出することになる。Next, cleaning of the adsorbent will be further explained in detail with reference to FIG. The relationship between the adsorption amount of the adsorbent and the temperature is as shown in the graph of FIG. 3, where the adsorption and retention amount is large at low temperatures and decreases as the temperature increases. When the adsorbent is ventilated to adsorb odor components and then heated to desorb and release the odor components for cleaning, the adsorption retention amount a at temperature A during adsorption will be reduced from the adsorption amount a at temperature B during cleaning by heating. Amount after subtracting retained mb (a-b)
Only the adsorbent will release odor components.
この温度Ｂは、酸化触媒２１を活性化し、しかも放出さ
れた臭気成分を酸化分解できる温度であることが必要で
ある。例えば酸化コバルト系触媒を用いて、臭気成分と
してアセトアルデヒドを対象とする場合には、この触媒
は約５０℃以上で活性化されるので、加熱ヒータ２３の
容量と、加熱ヒーター周囲部分の使用材質の関係から５
０℃以上の適当な温度に保持すればよい。This temperature B needs to be a temperature at which the oxidation catalyst 21 can be activated and the released odor components can be oxidized and decomposed. For example, when using a cobalt oxide catalyst to target acetaldehyde as an odor component, this catalyst is activated at temperatures above about 50°C, so the capacity of the heater 23 and the material used for the surrounding area of the heater 5 from relationship
It may be maintained at an appropriate temperature of 0°C or higher.
なお、臭気成分としてのアセトアルデヒドは、酸化コバ
ルト系触媒により、次の反応式のように酸化されるもの
と考えられる。It is believed that acetaldehyde as an odor component is oxidized by a cobalt oxide catalyst as shown in the following reaction formula.
２ＣＨ，ＣＨＯ＋５０２−＄４Ｃ○、＋４Ｈ，０この反
応式かられかるように、触媒による酸化反応生成物は、
炭酸ガスと水であり、吸着剤２２に活性炭を使用した場
合、活性炭は炭酸ガス及び水の吸着力が弱いので酸化触
媒２１で酸化して生じた生成物を再度吸着するというこ
とはほとんどなく、また、生成物は無臭であることから
外部に放出しても何ら問題がない。加熱して吸着剤２２
をクリーニングした後、加熱を停止すると吸着剤の温度
は再び室温に低下し、加熱により放出した臭気成分量（
ａ−ｂ）の分だけ吸着能力が回復する。2CH,CHO+502-$4C○,+4H,0As seen from this reaction formula, the catalytic oxidation reaction product is
When activated carbon is used as the adsorbent 22, activated carbon has a weak adsorption power for carbon dioxide gas and water, so it is unlikely that the products oxidized by the oxidation catalyst 21 will be adsorbed again. Moreover, since the product is odorless, there is no problem even if it is released to the outside. Heat the adsorbent 22
After cleaning, when heating is stopped, the temperature of the adsorbent drops to room temperature again, and the amount of odor components released by heating (
The adsorption capacity is recovered by the amount a-b).
なお、本実施例においては、加熱手段として電熱線の加
熱ヒーター２３を設けているが、触媒の加熱源としては
必ずしも電熱線でなくてもよく、例えばヒートポンプ式
のルームエアコンデショナに脱臭装置を設置する場合に
は、ヒートポンプ運転における熱交換器の熱を利用して
加熱源としても同様の効果が得られる。In this embodiment, a heating wire heater 23 is provided as a heating means, but the heating source for the catalyst does not necessarily have to be a heating wire. For example, a deodorizing device may be installed in a heat pump type room air conditioner. When installed, the same effect can be obtained as a heating source using the heat of the heat exchanger during heat pump operation.
［発明の効果］
本発明によれば、脱臭性能を長期間にわたり良好に保持
し得る吸着剤の再生機能付き脱臭装置を実現することが
できるようになったので、従来のように頻繁に吸着剤を
交換する必要がなくなった。[Effects of the Invention] According to the present invention, it has become possible to realize a deodorizing device with an adsorbent regeneration function that can maintain good deodorizing performance over a long period of time. There is no longer a need to replace it.
第１図は本発明の一実施例の空気清浄装置の縦断面図、
第２図は脱臭装置部分の組立斜視図、第３図は吸着剤の
吸着保持量と温度の関係を表わす特性曲線図である。
符号の説明FIG. 1 is a longitudinal sectional view of an air purifying device according to an embodiment of the present invention;
FIG. 2 is an assembled perspective view of the deodorizing device, and FIG. 3 is a characteristic curve diagram showing the relationship between the amount of adsorption and retention of the adsorbent and temperature. Explanation of symbols
Claims (1)
置において、臭気成分を吸着する吸着剤と、前記吸着剤
の表面または近房に加熱により活性化され臭気成分を酸
化分解する酸化触媒と、これら吸着剤及び酸化触媒を所
定温度に加熱する加熱手段とを具備してなる脱臭装置。 ２、上記吸着剤を少なくとも１対の酸化触媒層で挟み込
み、さらにその外側に隣接して加熱ヒーターを設置し、
通風順序が加熱ヒーター、酸化触媒層、吸着剤、酸化触
媒層及び加熱ヒーターの順となるよう直列に配列してな
る請求項１記載の脱臭装置。 ３、上記吸着剤表面を酸化触媒層で被覆してなる請求項
１記載の脱臭装置。 ４、空気導入口と排出口との間に請求項１、２もしくは
３記載の脱臭装置を配設してなり、しかも前記脱臭装置
の空気排出口側における臭気成分を検出するガス検出手
段と、このガス検出手段の検出出力にもとずいて前記脱
臭装置の加熱手段を所定時間駆動させるオン−オフ制御
手段とを具備してなる空気清浄装置。 ５、上記ガス検出手段の代わりに、タイマーを設け、前
記タイマーの出力により上記加熱手段を所定時間間隔で
駆動させるオン−オフ制御手段とした請求項４記載の空
気清浄装置。[Scope of Claims] 1. In a deodorizing device that removes odor components from the air through an adsorbent, an adsorbent that adsorbs odor components and an adsorbent that is activated by heating to oxidize the odor components are placed on the surface or near the adsorbent. A deodorizing device comprising an oxidation catalyst to be decomposed, and heating means to heat the adsorbent and oxidation catalyst to a predetermined temperature. 2. The adsorbent is sandwiched between at least one pair of oxidation catalyst layers, and a heater is installed adjacent to the outside thereof,
2. The deodorizing device according to claim 1, wherein the deodorizing device is arranged in series so that the ventilation order is the heating heater, the oxidation catalyst layer, the adsorbent, the oxidation catalyst layer, and the heating heater. 3. The deodorizing device according to claim 1, wherein the surface of the adsorbent is coated with an oxidation catalyst layer. 4. Gas detection means for detecting odor components on the air outlet side of the deodorizing device, the deodorizing device according to claim 1, 2 or 3 being disposed between the air inlet and the outlet; An air cleaning device comprising: on-off control means for driving the heating means of the deodorizing device for a predetermined period of time based on the detection output of the gas detection means. 5. The air purifying device according to claim 4, wherein a timer is provided in place of the gas detection means, and an on-off control means for driving the heating means at predetermined time intervals based on the output of the timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1202851A JPH0368419A (en) | 1989-08-07 | 1989-08-07 | Deodorizing device and air cleaner using it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1202851A JPH0368419A (en) | 1989-08-07 | 1989-08-07 | Deodorizing device and air cleaner using it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0368419A true JPH0368419A (en) | 1991-03-25 |
Family
ID=16464246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1202851A Pending JPH0368419A (en) | 1989-08-07 | 1989-08-07 | Deodorizing device and air cleaner using it |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0368419A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993005821A1 (en) * | 1991-09-25 | 1993-04-01 | S.C. Johnson & Son, Inc. | Catalytic reduction of volatile organic contaminants in indoor air |
| JPH0634640U (en) * | 1991-06-20 | 1994-05-10 | 株式会社ゼクセル | Deodorizing sterilizer |
| JPH07171341A (en) * | 1993-12-02 | 1995-07-11 | Nichias Corp | How to remove traces of acetaldehyde in the air |
| JP2004230368A (en) * | 2002-12-04 | 2004-08-19 | Matsushita Ecology Systems Co Ltd | Unit and method for removing carbon monoxide, air cleaner and carbon monoxide removing catalyst composition |
| JP2007105122A (en) * | 2005-10-11 | 2007-04-26 | Fujitsu General Ltd | Air cleaner |
| JP2010214359A (en) * | 2009-02-17 | 2010-09-30 | Yokohama National Univ | Thermocatalyst unit for decomposing volatile organic compound |
| JP2011025227A (en) * | 2009-07-28 | 2011-02-10 | Neord Co Ltd | Reducing apparatus of harmful exhaust gas and reducing system of harmful exhaust gas including the same |
| JP2013042924A (en) * | 2011-08-24 | 2013-03-04 | Mitsubishi Electric Corp | Air cleaner |
| JP2013192674A (en) * | 2012-03-19 | 2013-09-30 | Mitsubishi Electric Corp | Deodorization apparatus |
-
1989
- 1989-08-07 JP JP1202851A patent/JPH0368419A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0634640U (en) * | 1991-06-20 | 1994-05-10 | 株式会社ゼクセル | Deodorizing sterilizer |
| WO1993005821A1 (en) * | 1991-09-25 | 1993-04-01 | S.C. Johnson & Son, Inc. | Catalytic reduction of volatile organic contaminants in indoor air |
| US5354540A (en) * | 1991-09-25 | 1994-10-11 | S. C. Johnson & Son, Inc. | Catalytic reduction of volatile organic contaminants in indoor air |
| JPH07171341A (en) * | 1993-12-02 | 1995-07-11 | Nichias Corp | How to remove traces of acetaldehyde in the air |
| JP2004230368A (en) * | 2002-12-04 | 2004-08-19 | Matsushita Ecology Systems Co Ltd | Unit and method for removing carbon monoxide, air cleaner and carbon monoxide removing catalyst composition |
| JP2007105122A (en) * | 2005-10-11 | 2007-04-26 | Fujitsu General Ltd | Air cleaner |
| JP4640096B2 (en) * | 2005-10-11 | 2011-03-02 | 株式会社富士通ゼネラル | Air cleaner |
| JP2010214359A (en) * | 2009-02-17 | 2010-09-30 | Yokohama National Univ | Thermocatalyst unit for decomposing volatile organic compound |
| JP2011025227A (en) * | 2009-07-28 | 2011-02-10 | Neord Co Ltd | Reducing apparatus of harmful exhaust gas and reducing system of harmful exhaust gas including the same |
| JP2013042924A (en) * | 2011-08-24 | 2013-03-04 | Mitsubishi Electric Corp | Air cleaner |
| JP2013192674A (en) * | 2012-03-19 | 2013-09-30 | Mitsubishi Electric Corp | Deodorization apparatus |
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