JP2004351313A - Air purifying apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air purifying apparatus which is made compact as a whole, the manufacturing cost of which is made low, which can reliably collect minute dust/mist and exhibit an excellent deodorizing function, in the equipment of which the propagation of bacteria can be prevented, the dust collecting electrode and catalyst of which can be prevented from malfunctioning owing to the attachment of fine particles or dust/mist and the catalyst of which can be prevented from being deteriorated in performance owing to ozone. <P>SOLUTION: This air purifying apparatus is constituted so that a wet dust collecting part V being a primary dust collecting part, an electric dust collecting part W being a secondary dust collecting part and a deodorizing part X consisting of a plasma generating unit 8 and a catalytic unit 9 are arranged in this order from the lower layer to the upper layer in a purifier main body 1 which has a dust-containing air sucking port 1A in the lower side part and a purified air discharging port 1B in the ceiling part. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【００２５】
尚、上記の表１において、「処理前臭気濃度」が「１３００」ということは、臭気空気を１３００倍にした時、臭いが無くなったことを意味する。また、「処理後臭気濃度」が「１３０」ということは、臭気空気を１３０倍にした時、臭いが無くなったことを意味する。つまり、「１３００」の方が臭気が強いことを意味する。
【００２６】
【発明の効果】
以上述べた次第で、本発明に係る空気清浄装置によれば、前記特許文献１に見られるような充填物や、フイルター等の空気流に抵抗を与えるものを使用せずに、低圧損にて含塵空気の清浄化を可能にすることができるため、比較的小型のファンを使用した小型の装置によって充分な清浄効果を発揮できると共に、プラズマ発生ユニットを通常使用時における脱臭機能と、装置の停止時におけるオゾン発生による殺菌機能との２役に利用できるため、更に、装置の小型化と低コスト化を可能にした空気清浄機を提供することができる。
【００２７】
更に本発明では、集塵部を湿式集塵部と電気集塵部の２段形式に構成したため、微細なダスト・ミストの捕集を可能にすると共に、湿式集塵部を一次集塵部としたから、厨房等の火気に対する安全性を高めることができる。また、臭気を含む空気は、プラズマによる活性化後、直ちに触媒ユニットにて酸化反応が行われるため、優れた脱臭効果を発揮できるものであって、例えば、居酒屋とか焼き肉屋等の業務用厨房のように、油煙と臭気を含んだ汚れた空気を大量に排出する店舗や施設等に実施して、まことに好適なものである。
【図面の簡単な説明】
【図１】本発明に係る空気清浄装置の平面図。
【図２】本発明に係る空気清浄装置の側面図。
【図３】本発明に係る空気清浄装置の内部構造を拡大して示した断面図。
【符号の説明】
１ 清浄機本体
１Ａ 吸込口
１Ｂ 排出口
Ｖ 一次集塵部である湿式集塵部
Ｗ 二次集塵部である電気集塵部
Ｘ 脱臭部
８ プラズマ発生ユニット
９ 触媒ユニット
１０ 吸引ファン[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an air purifying device devised so that oily smoke can be removed and odor can be removed from exhaust air containing odor generated in a large amount from a commercial kitchen such as a izakaya or a yakiniku restaurant. .
[0002]
[Prior art]
As for an air purifying device having a deodorizing function, there is a “ozone deodorizing device” described in Patent Document 1 conventionally.
[0003]
[Patent Document 1]
Japanese Utility Model Application Laid-open No. 62-106626 (Japanese Utility Model Application No. 60-201822)
[0004]
As described in the specification and the drawings, the “ozone deodorizing device” described in Patent Literature 1 described above uses a packed bed 5a in which ozone water is sprayed on a gas to be treated introduced into the processing cylinder 1. , 5b, and 5c, the dust in the gas to be treated is collected, and deodorization is also performed by contact with ozone. Further, the ozone contained in the purified air discharged from the processing cylinder 1 is configured to be rendered harmless by its catalytic action by passing through the activated carbon layer 18b of the ozone decomposing device 18.
[0005]
[Problems to be solved by the invention]
However, the "ozone deodorizing apparatus" described in Patent Document 1 collects and deodorizes dust by a gas-liquid contact action between ozone water and a gas to be treated in the packed layers 5a, 5b, and 5c. In addition, there is a problem that the water spray equipment for spraying the ozone water, the ozone water dissolution tanks 12 and 14, or the water supply equipment for the ozone water are required, and the equipment becomes large.
[0006]
In addition, the "ozone deodorizing device" of Patent Document 1 employs a method of spraying ozone water onto the packed layers 5a, 5b, and 5c, so that there is a problem in collecting fine mist and deodorizing. There is a problem in the effect of ozone having performance and in economic efficiency, and there is also a high risk of electric leakage due to the use of a high voltage, and improvement has been sought.
[0007]
Therefore, the technical object of the present invention is to make it possible to reduce the size and cost of the entire apparatus, to reliably collect fine dust and mist, to exert an excellent deodorizing function, and to prevent the growth of bacteria and the like in the equipment. It is also an object of the present invention to provide an air purifying device that is devised so as to prevent the functions of the dust collecting electrode and the catalyst from deteriorating due to the adhesion of dust and dust mist, or to prevent the deterioration of the catalyst performance due to ozone.
[0008]
[Means for Solving the Problems]
(1) In order to solve the above technical object, the air purifying apparatus according to the present invention, as described in the above-mentioned claim 1, transfers dust-containing air sucked into the cleaner body by a suction fan into the cleaner body. A wet-type dust collector that separates and collects dust and mist in dust-containing air by contacting stored dust-collecting water, and electricity that electrically collects fine dust and mist from air collected by the wet-type dust collector An air purifier comprising a dust collecting unit and a deodorizing unit for deodorizing the electrically collected air, wherein the wet type dust collecting unit is provided in a lower layer portion of the purifier body, and a middle layer portion above the wet type dust collecting unit. The electric dust collecting part is provided, and the deodorizing part is provided in the upper layer part thereon, and the dust-containing air sucked by the suction fan is supplied from the lower wet dust collecting part to the middle electric dust collecting part and the upper deodorizing part. It is constructed so that dust is collected and deodorized by passing it upward in order. .
[0009]
(2) In the present invention, as described in claim 2, the deodorizing section is constituted by a plasma generation unit by high-voltage discharge and a catalyst unit, and the catalyst unit is vertically positioned above the plasma generation unit. It is characterized by being provided adjacently.
[0010]
(3) Further, according to the present invention, the suction fan and the plasma generation unit are in an operating state when the air cleaning device is operated, and the suction fan is operated when the operation of the air cleaning device is stopped. It is characterized in that it is stopped and the plasma generating unit is operated continuously or for a required time.
[0011]
According to the air purifying apparatus of the present invention comprising the means described in the above (1), (2) and (3), the air that has flowed into the apparatus is collected in the wet dust collecting section of the main body of the purifier. Dust mist containing oily smoke in the dust-containing air is separated and removed by contact with dust water, and dust mist that cannot be removed by the wet dust collection unit is collected by the electric dust collection unit. Next, the purified air is activated by plasma under high voltage discharge in the deodorizing section, and the activated gas and odor are deodorized by an oxidation reaction in a catalyst. When deodorizing, dust, mist, and moisture are almost completely removed before the air reaches the catalyst, so there is little dust mist or dirt on the catalyst, minimizing functional deterioration. Become.
[0012]
In addition, the air containing the odor undergoes an oxidation reaction in the catalyst unit immediately after the activation by the plasma, so that the reaction is effectively performed and has a good deodorizing effect. Since it has a function of decomposing ozone, air safe for humans can be discharged to the outside. In addition, when the apparatus is stopped, only the fan is stopped, and the plasma is continuously generated for a predetermined time or continuously, so that the plasma active gas containing ozone generated by the plasma generation unit has a specific gravity. Is heavier than air, and after the fan stops, it flows down and accumulates below the plasma generation unit. Therefore, the catalyst located above the plasma generating unit does not come into contact with the catalyst, and the catalyst is not deteriorated.
[0013]
On the other hand, in the electric dust collecting part and the wet dust collecting part below the plasma generating unit, the germicidal action by the plasma active gas containing ozone that flows down works effectively, and the generation of putrid odor by bacteria is generated. Can be prevented. In addition, since the wet dust collecting part is at the bottom, coarse dust and mist are removed, and then the fine dust and mist are collected by the electric dust collecting part. There is no influence of water in the wet dust collecting section, that is, no problems such as short circuit and short circuit under high voltage occur.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of an air purifying apparatus according to the present invention will be described below with reference to the drawings. FIGS. 1 and 2 are a plan view and a side view of a purifier body 1 in which the present invention is implemented. A dust-containing air inlet opening on one side of the lower part (lower part) of the machine main body 1, 1B is a clean air outlet provided on the ceiling surface of the main body 1, 1F is a maintenance door configured to be openable and closable, 1T is an operation panel, 2W is a water supply connection port for supplying dust collection water to an internal wet dust collection unit described below, 3 is a drain connection port for draining used dust collection water, and 3A is a drainage port. The hose 2A is a manometer for monitoring the water level of the dust collection water.
[0015]
FIG. 3 is an enlarged cross-sectional view showing the internal structure of the cleaner main body 1 shown in FIGS. 1 and 2, wherein the inside of the cleaner main body 1 is a wet dust collector which is a primary dust collector of a lower layer portion. V, an electric precipitating section W which is a secondary precipitating section in the middle layer, and a deodorizing section X in the upper layer. A suction fan 10 rotated by a motor 11 is provided in the uppermost layer.
[0016]
The lower portion of the wet dust collecting portion V is sucked from the storage tank 2 for storing the above-mentioned dust collecting water DW (tap water or the like) and the suction port 1A by the suction action of the rotation of the suction fan 10. A wet mist collection unit D is provided for bringing the incoming dust-containing air into contact with the dust collection water DW stored in the storage tank 2. Further, the dust collection water DW in the storage tank 2 is configured to be constantly maintained at a constant water amount.
[0017]
The wet mist collecting section D guides the dust-containing air sucked from the suction port 1A to the inside 5 'of the water-use contact chamber 5 provided in the lower storage tank 2 through the guide passage 5H to collect the dust-collecting water DW. And a guide section 4 for contacting the guide section. An inlet 5A through which the dust collecting water DW flows into the inside 5 'of the dust collecting water DW is opened at the bottom of the water contact chamber 5, and the dust collecting water DW comes into contact with the dust collecting water DW at the upper surface thereof. The discharge port 5B for discharging the primary-treated air from which the mist has been collected and separated toward the room of the wet dust collecting section V is opened.
[0018]
In the drawing, 1K is a guide frame for feeding the dust-containing air sucked from the suction port 1A to the guide portion 4, and 4 'is a primary-processed air discharged upward from the discharge port 5B. FIG. 5 shows a folded portion continuously provided at an upper end portion of the guide portion 4 for reversing the dust collection water DW toward the water surface.
[0019]
The electric precipitating unit W constituting the secondary precipitating unit provided in the middle part is constituted by a charging unit 6 and an electric precipitating unit 7, and the charging unit 6 provided in the preceding stage (the lower stage in the drawing) is provided with a lower unit. Oil smoke and the like that could not be removed by the wet dust collecting section V on the side are charged by high-pressure discharge (for example, 10 kV), and the electric dust collecting unit 7 provided at the subsequent stage (upper stage in the drawing) collects the dust.
[0020]
The deodorizing section X provided in the upper layer portion is constituted by a plasma generating unit 8 provided in a preceding stage (lower stage in the drawing) and a catalyst unit 9 of, for example, a honeycomb type provided in a state adjacent to a latter stage (upper stage in the drawing). I have. The plasma generation unit 8 employing the plasma method has a function of emitting electrons into gas by high-pressure discharge (for example, 9 kV) to radicalize and activate the gas. Further, the honeycomb catalyst unit 9 has a function of promoting the oxidation reaction between the gas activated by the plasma generation unit 8 and the odor, with the catalyst SV having a processing amount of, for example, 56000.
[0021]
As the catalyst used in the catalyst unit 9, for example, a honeycomb type Mn-based oxidation catalyst is used. According to this catalyst, the odor activated by the plasma can be oxidized to promote deodorization (deodorization) and the ozone generated by the plasma reaction can be decomposed.
[0022]
The plasma generating unit 8 is configured to operate continuously or for a required time even when the rotation of the suction fan 10 is stopped to stop the operation of the apparatus. Since the specific gravity of the plasma active gas containing ozone generated in the plasma generation unit 8 is heavier than air, after the suction fan 10 is stopped, it is lower than the level LV shown in FIG. Also flows downward and accumulates, and does not come into contact with the catalyst unit 9 located above the level LV, so that deterioration of the catalyst can be prevented.
[0023]
When the present invention configured as described above is used for purifying exhaust air containing odors generated from a commercial kitchen such as a izakaya or a barbecue shop, the lower part of the wet dust collecting section V emits oil smoke from the exhaust air. About 95% could be removed. At the outlet of the electric dust collecting section W in the middle layer, about 99.9% of the suction oil fumes could be removed. Further, in the upper deodorizing section X, about 90% of the odor concentration could be removed.
[0024]
The results of measuring the odor concentration by the three-point comparative odor bag method are as shown in Table 1 below, and no change was observed in the deodorizing function even after two months. The odor measurement method is as follows: miscellaneous odors generated by cooking fried foods, boiled foods, stir-fried foods, etc. are exhausted outdoors using a ventilation fan (air volume 70 m3 / min) provided in a canopy, and the exhaust air is transmitted to the present apparatus. It was measured by suction.
[Table 1]

[0025]
In Table 1 above, the fact that the "odor concentration before treatment" is "1300" means that the odor has disappeared when the odor air is increased by a factor of 1300. Further, the fact that the “odor concentration after treatment” is “130” means that the odor has disappeared when the odor air is increased 130 times. That is, "1300" means that the odor is stronger.
[0026]
【The invention's effect】
As described above, according to the air purifying apparatus of the present invention, a filling material such as that described in Patent Document 1 or a filter or the like that gives resistance to the air flow is not used and a low pressure loss is used. Since it is possible to clean the dust-containing air, a small device using a relatively small fan can exert a sufficient cleaning effect. Since the air purifier can be used for two functions, that is, a sterilization function by generation of ozone at the time of stoppage, it is possible to provide an air purifier that can further reduce the size and cost of the apparatus.
[0027]
Further, in the present invention, since the dust collecting section is configured in a two-stage type of a wet dust collecting section and an electric dust collecting section, it is possible to collect fine dust and mist, and the wet dust collecting section is defined as a primary dust collecting section. Therefore, safety against fire in a kitchen or the like can be improved. In addition, the air containing the odor is capable of exhibiting an excellent deodorizing effect because the oxidation reaction is immediately performed in the catalyst unit immediately after the activation by the plasma, and for example, for a commercial kitchen such as a izakaya or a yakiniku restaurant. As described above, the present invention is particularly suitable for a store or facility that discharges a large amount of dirty air containing oil smoke and odor.
[Brief description of the drawings]
FIG. 1 is a plan view of an air cleaning device according to the present invention.
FIG. 2 is a side view of the air cleaning device according to the present invention.
FIG. 3 is an enlarged sectional view showing the internal structure of the air cleaning device according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Purifier main body 1A Suction port 1B Outlet V Wet type dust collecting part W which is a primary dust collecting part Electric dust collecting part X which is a secondary dust collecting part Deodorizing part 8 Plasma generating unit 9 Catalyst unit 10 Suction fan

Claims (3)

A wet-type dust collection unit that separates and collects dust mist from the dust-containing air by contacting the dust-containing air sucked into the purifier body with a suction fan to dust-collecting water stored in the purifier body; An air purifier comprising: an electric precipitator for electrically precipitating fine dust and mist from air collected in a dust part; and a deodorizing part for deodorizing the air precipitated,
The wet dust collector is provided in a lower part of the main body of the purifier, the electric dust collector is provided in a middle part thereof, and the deodorizing part is provided in an upper part thereof. An air purifying apparatus, wherein dust is collected and deodorized by passing dust air upward from a lower wet dust collecting section to an intermediate electric collecting section and an upper deodorizing section in this order. . The said deodorizing part is comprised by the plasma generation unit by a high voltage discharge, and a catalyst unit, The catalyst unit is provided in the upper part of a plasma generation unit adjacently up and down, The Claim 1 characterized by the above-mentioned. Air purifier. During operation of the air cleaning device, the suction fan and the plasma generation unit are in an operating state, and when the operation of the air purification device is stopped, the suction fan is stopped to continuously operate the plasma generation unit, or only for a necessary time. The air purifying apparatus according to claim 1, wherein the air purifying apparatus is in an operating state.

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