JPH11342317A - Air cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of the secondary pollution in an air cleaning device by providing this device with a reaction section where the harmful gases generated by decomposition and combustion of the org. matter mainly derived from living things are subjected to a non-polluting treatment under photoirradiation and an introducing section where the harmful gases are supplied under expansion in the reaction dection in the case of the cleaning of the harmful gases. SOLUTION: The air cleaning device 1 loaded horizontally between horizontal ducts where the harmful gases flow is provided with the introducing section 2 which supplies the harmful gases to the reaction section 5 at a lowered velocity while expanding the gases. Distribution plates 3,... are installed to the section and the respective one-side ends thereof are successively provided with flow regulating plates 4. The reaction section 5 provided with plural turbulence vent paths 8 laminated by shifting the phases of the amplitude of plural corrugated plates 7 of a triangular waveform by about 50% each to prevent the contact thereof with each other is included in such air purification device 1. The gas contact parts of these turbulence vent paths 8 are coated with titanium oxide surfaces 9 and plural photoirradiation lamps 10 isolated from the harmful gases by transparent protectors 11 are disposed at the proper points of the turbulence vent paths 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a sewage treatment plant, a human waste treatment plant, a garbage collection plant, a composting device, and trimethylamine, methyl mercaptan, hydrogen sulfide and the like discharged from public toilets and septic tanks, and a large amount of traffic. Contains harmful substances such as nitrogen oxides, sulfur oxides, carbon monoxide, and dioxin that are taken into the air conditioning equipment of buildings near roads and near incineration plants, and are emitted from indoor parking lots and underground motorways. The present invention relates to a small, lightweight, and high-performance air purification device for dry-purifying air (hereinafter referred to as harmful gas) by photocatalysis of titanium oxide.

[0002]

2. Description of the Related Art Conventional techniques include a wet method in which harmful gas is absorbed and reacted with a chemical solution such as water or an alkaline solution and / or an acid solution, and contact with ozone or fossil fuel combustion hot gas. There is a dry method of decomposing.

[0003] The wet method generally has a tower height of 3 to 3 m.
There is a treatment system in which a water washing device and an acid washing device of about 5 m are combined in order, and a treatment system in which an alkali washing device, an acid washing device, an activated carbon adsorption device and the like are combined in order to increase the treatment efficiency of harmful gas. Therefore, the water cleaning device, the alkali cleaning device and the acid cleaning device are
It is necessary to fill a medium such as Lahishling to increase the liquid contact area, and to fill activated carbon in an activated carbon adsorption device in one stage with a thickness of about 1.5 to 2 m or in two or three stages with a thickness of about 0.3 to 0.5 m. In order to increase the total pressure loss, the required pressure of the blower needs about 350 to 500 mmAq,
The required horsepower and speed were extremely high. Therefore, the noise and vibration generated by the blower are also large, making it difficult to comply with the noise regulation value especially at night, and therefore, the wall thickness of the sound absorbing material is 250 to 30.
You need a soundproof room made of 0mm reinforced concrete,
Not only must high soundproof walls and high trees be planted along the site boundary, but also reinforcement work must be performed to prevent the generation of resonance noise through gas flow, or all equipment must be installed inside the building. There was a problem that it had to be installed.

Further, the harmful components absorbed and removed by the water washing device, the alkali washing device and the acid washing device are not decomposed, but merely convert air pollutants into water pollutants. In the wastewater treatment of the liquid after absorption, there is a problem that a neutralization treatment is required since the reaction product accumulated in the liquid is overflowed before being precipitated.

[0005] Further, not only a drug storage device, a pH adjusting device for a solution diluted or absorbed after absorption, a plurality of absorption solution circulation pumps and supply / drainage pumps, but also those devices and a water washing device or an alkali washing device or an acid washing device In addition, the number of equipment, civil engineering work for buildings and machine foundations is increased, and the scale of the equipment is increased. There is also a problem that the equipment construction cost becomes excessive due to the required area.

[0006] Accordingly, not only the operation becomes complicated and labor is required, but also a skilled person and a technician are required to be stationed, and not only the chemical for the absorption reaction but also the neutralizing agent for the drainage treatment and the wastewater treatment. There is also a problem that the cost of consumables such as chemicals for use and activated carbon, electric consumption, and the like increase, and the operation and management costs of the apparatus become excessive.

[0007] Further, there is also a problem that, if negligible daily operation management is performed, the facility becomes a complex source facility of secondary pollution due to air pollution, water pollution, noise and vibration, and the like.

A dry-type ozone treatment system generates ozone, which has an extremely strong oxidative decomposition power next to fluorine, generally by a silent discharge type ozone generator, and contacts the harmful gas to detoxify the ozone. Although the principle is simple, it has the advantage that the number of equipment is small and no sewage is generated. However, ozone is ineffective in storage, only about 7.5 to 15% of the discharge energy is used for ozone generation, and the remaining energy is used. A large amount of cooling water is required to reduce the ozone generation rate by raising the gas temperature by changing to heat, and expensive special activated carbon with a catalytic action is added because the residual ozone in the treated gas is an extremely toxic substance. There is a problem that an operation management cost is excessively large because an ozone killer for detoxifying the wastewater is required while the wastewater is consumed.

The high-temperature combustion processing system burns a large amount of heavy oil to decompose harmful gas at a high temperature, generates a large amount of carbon dioxide that warms the earth, and oxidizes by-product nitrogen and sulfur. A desulfurization / denitration device and a dust collection device for removing substances and soot are required, and there is a problem that the device construction cost and operation management cost become excessive.

[0010]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is that an air purification device for detoxifying harmful gas tends to be a secondary pollution source, and the construction cost and operation management cost become excessive. Is a point.

[0011]

According to the present invention, there is provided an air purifying apparatus for purifying harmful gas mainly generated by decomposition or combustion of organic matter derived from living organisms. A reaction section for detoxifying the harmful gas while irradiating light, and an introduction section for supplying a harmful gas to the reaction section while expanding the reaction section, wherein the reaction section provides a turbulent flow to the harmful gas supplied from the introduction section. With a turbulent air path, the turbulent air path is laminated so that a plurality of corrugated plates do not contact each other, and the gas contact portion of the turbulent air path is coated with titanium oxide,
An air purification device, wherein a plurality of light irradiation lamps are provided in the turbulent air passage.

Further, the air purifying apparatus is characterized in that the light irradiation lamp is separated from harmful gas by a transparent protective body and is detachably mounted at any time.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The air purifying apparatus constructed as described above is mainly used for accumulating or incinerating garbage, such as gas produced by fermentation, spoilage and combustion of organic substances derived from living organisms. A harmful gas containing trimethylamine, methyl mercaptan, nitrogen oxide, carbon monoxide, dioxin, etc. generated in composting equipment and indoor parking lots and underground roads, etc. constitutes a reaction part and the gas contact part is coated with titanium oxide The titanium oxide photocatalyst, which is known to be instantaneously expressed on the surface of the titanium oxide that has been irradiated with light while being distributed while being distributed to a plurality of turbulent air passages provided with a light irradiation lamp therein, is known. Since it is directly decomposed and dry-cleaned, the structure of the device can be simplified, and the operation is simple. Add to maximum load operation immediately after the start, not only that.

Further, the plurality of turbulent air paths constituting the reaction section are formed by alternately connecting a plurality of corrugated plates having a triangular wave shape, a trapezoidal wave shape, a wave shape showing a sine curve, a flat plate shape, and a shape obtained by appropriately combining them. Because it is an empty airway-like space that is laminated so that it does not contact the surface, not only can the titanium oxide surface where the titanium oxide photocatalysis develops be large, but also the turbulent flow to the harmful gas flow and the purified gas on the titanium oxide surface By exhibiting a gas-solid surface renewal effect of preventing the entanglement, the purification ability is enhanced, the time required for purification is shortened, and the apparatus can be downsized.

A plurality of turbulent air passages constituting the reaction section are laminated such that a plurality of corrugated plates are not in contact with each other, and the gas contacting section is covered with titanium oxide, and a light irradiation lamp is mounted inside. It is an empty airway-like space with a small pressure loss just installed, and it is directly decomposed and dry-purified by the titanium oxide photocatalytic action that instantaneously appears on the titanium oxide surface that received the harmful gas. The use of such fillers that block gas flow and light and increase pressure loss and absorbent chemicals such as acids and alkalis are not used at all, so that the blowing pressure, output and rotation speed of the blower can be reduced, and the absorption tower is more effective than chemicals for absorbing chemicals. Liquid-related auxiliary equipment such as storage, concentration adjustment, supply / discharge, circulation, neutralization, and wastewater treatment are completely unnecessary, and utility costs such as electricity, chemicals and water can be reduced, and noise and vibration values are small and wastewater can be used. Does not appear It can be pollution system, the required land area of the device since such devices Number can also reduce, can be reduced and construction costs and operation and management costs, labor saving,
Energy saving, resource saving, and pollution-free are to be achieved.

Further, since the plurality of turbulent air paths constituting the reaction section are formed by laminating a plurality of thin corrugated plates so as not to contact each other, two corrugated sheets located at both ends thereof are provided. Except for the plate, both front and back sides are effective common partition plates, the ratio of the total area of titanium oxide coating to the total volume of the turbulent air passage is increased, and the required number of corrugated plates is always the turbulent flow required for harmful gas treatment Since the number of airways can be covered by 1 plus the required number of turbulent airways, the required number of corrugated plates gradually decreases as the required number of turbulent airways increases. Is measured.

Further, since the shape of the plurality of turbulent air passages constituting the reaction section governs the air-solid surface renewal operation, a triangular wave,
Trapezoidal wave, undulating wave showing sine curve, flat plate etc. and appropriate combination of them can be selected from the best, and furthermore, do not touch the corrugated plates with the same waveform, wavelength and amplitude In addition, adjacent ones are laminated such that the amplitude phases of adjacent ones are the same or regularly shifted and the amplitude axes are parallel, or wave-shaped plates having the same waveform but different wavelengths and / or amplitudes are appropriately combined and amplitudes are adjusted. Laminating so that the axes are parallel, waveform, wavelength,
By properly combining corrugated plates with different amplitudes and laminating them so that their amplitude axes are parallel, or by laminating them so that their amplitude axes intersect, a variety of different things can be made. From these, the most suitable one can be selected according to the processing amount, composition, concentration, etc. of the harmful gas, so that the field of application can be expanded.

Further, mushroom-like, polygonal pyramid-like,
By providing vertical stripes, horizontal stripes, etc. and small projections appropriately combining them, it is possible to generate a vortex according to the gas flow velocity and change the turbulence mode, so that it can respond autonomously to load fluctuations Can be.

Further, the reaction section having a plurality of turbulent air passages whose gas contact portions are coated with titanium oxide and a light irradiation lamp,
Active oxygen is emitted by the titanium oxide photocatalyst that is received and expressed by the titanium oxide surface, so that viruses and bacteria can be inactivated and sterilized. Also, harmful substances such as ozone gas are not produced as by-products, so circulation in living spaces It can also be used for air purification.

Since the light irradiation lamp is isolated from the harmful gas flow by the transparent protective body, the lamp can be replaced at any time from the outside of the case, and since the life is 6,000 to 9,000 hours, almost maintenance-free long-term continuous operation is possible. can do.

Further, by providing a light irradiation lamp with an illuminance adjuster and a lamp-off indicator with a terminal connected to a centralized monitoring panel, unmanned operation can be performed.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIG. Reference numeral 1 denotes an air purification device installed horizontally between horizontal ducts through which harmful gas flows. Reference numeral 2 denotes an introduction section which supplies the reaction gas to the reaction section 5 at a reduced flow rate while expanding the harmful gas, and is provided with a distribution plate 3. Reference numeral 4 denotes a current plate, one end of which is connected to one end of the distribution plate 3.
The reaction section 5 is provided with a plurality of turbulent air passages 8 formed by laminating a plurality of triangular wavy plates 7 so as not to contact each other and shifting the amplitude phases thereof by 50%. Reference numeral 6 denotes a case, and 9 denotes a titanium oxide surface covering the gas contact portion of the turbulent air passage 8.

Reference numeral 10 denotes a light irradiation lamp, and the transparent protective body 1
1 is provided so that the lamp can be replaced at any time from outside the case even during operation, and a lamp inspection port (not shown) is provided on the side of the case. A resistance plate 13 is provided in the lead-out section 12, and discharges the detoxified purified gas while shrinking. The resistance plate 13 regulates the amount and speed of gas flowing in the turbulent air passage 8 to change the state of vortex generation, thereby stabilizing the processing performance to a high level. One end of the corrugated plate 7 is connected to the other end of the rectifying plate 4, and the other end is connected to one end of the resistance plate 13.

When the harmful gas contains mist, water vapor, or an adhering substance, the reaction section is inclined to imitate the concave portion of the corrugated plate 7 as a drain outlet groove, and the lower end thereof is formed. A connecting water collecting groove and a drain pot are provided. Note that A is an arrow indicating the direction in which the harmful gas flows, and B is an arrow direction indicating the direction in which the detoxified purified gas flows.

FIG. 2 is a sectional view showing a second embodiment of the present invention.
It will be described based on. 14 is a small-sized air purification device, 15 is an introduction portion provided with a distribution plate 16, 17 is a reaction portion provided with two turbulent air passages 20, and 19 is a trapezoidal wavy plate. The turbulent air passage 20 is divided by an illuminating group 22 provided in the form of a central separation band so as not to contact the two corrugated plates 19. Reference numeral 21 denotes a titanium oxide surface of a gas contact portion of the turbulent air passage 20. Reference numeral 23 denotes a light irradiation lamp provided along a guide groove (not shown) of the illumination group 22. Reference numeral 24 denotes a transparent protective body, which isolates the light irradiation lamp 23 from the harmful gas flow. The light irradiation lamp 23 can be replaced at any time from a lamp inspection port provided on a side surface (not shown) of the case without interrupting the operation. 26 is a partition plate 27
Is a derivation unit provided with.

FIG. 3 is a sectional view showing a third embodiment of the present invention.
It will be described based on. 27 is a vertical type air purification device, 28 is a guiding portion provided with a distribution plate 29, 30 is a reaction portion provided with a plurality of turbulent air passages 33, and 32 is a plurality of triangular wavy plates. . The turbulent air passage 33 includes a plurality of corrugated plates 32.
Are laminated so that they do not contact each other and the wavelength phases are sequentially shifted regularly. Reference numeral 34 denotes a titanium oxide surface of a gas contact portion of the turbulent air passage 33. 35 is a random circulation airway 33
A light irradiating lamp installed in the center of the expansion space. The light irradiating lamp is isolated from the harmful gas flow by a transparent protective body 36, and is installed and detached during operation from a lamp inspection port provided on a side surface (not shown) of the case. Have been. Reference numeral 37 denotes a lead-out portion provided with a resistance plate 38, which guides pollen, dust and the like in the purified gas to a dust chamber 39. 40 is a vent 41 and an outlet 4
Reference numeral 43 denotes a dust removal port provided with a dust cover 44. One end of the corrugated plate 33 is connected to the distribution plate 30 and the other end is connected to the resistance plate 39. Further, the corrugated plate 32 and the distribution plate 2
A flow straightening plate may be provided between the dust chamber 9 and / or the resistance plate 38, or the dust chamber 39 may be filled with water, sprayed with water, or provided with an air filter. C is an arrow indicating the direction in which the dust-removing purification gas flows.

FIG. 4 is a sectional view showing a fourth embodiment of the present invention.
It will be described based on. A large-capacity, space-saving air purification device 45 is provided vertically, and is provided with a first reaction section 48A and a second reaction section 48B. Reference numeral 46 denotes an introduction portion provided with a forward distribution plate 47, and reference numeral 50 denotes a plurality of spaces formed by partitioning a plurality of spaces formed by a plurality of flat plates 51 at predetermined intervals so as not to be in contact with each other by triangular wavy plates 52A and 52B. And 53 is a titanium oxide surface of a gas contact portion. Reference numeral 55 denotes a transparent protector for isolating the light irradiation lamp 54 from the harmful gas flow, and is provided so as to be detachable at any time during operation from a lamp inspection port provided on a side surface (not shown) of the case. Reference numeral 56 denotes a turn-back section for supplying gas derived from the first reaction section 48A to the second reaction section 48B.
7 and a return distribution plate 58 are provided. Reference numeral 59 denotes a lead-out unit that discharges the purified gas, and is provided with a discharge resistance plate 60.

The corrugated plate 52A has one end connected to one end of the forward distribution plate 47 and the other end connected to one end of the transfer resistance plate 57. One end of the corrugated plate 52B has a return distribution plate 58.
The other end is connected to one end of the discharge resistance plate 60. In addition, the rectifying plate is composed of the corrugated plate 52A and the forward distribution plate 47.
And / or between the transfer resistor plate 57 and the corrugated plate 5.
2B and the return distribution plate 58 and / or the discharge resistance plate 60 may be provided. D is an arrow indicating the direction in which the primary purification gas flows.

The air purifying apparatus 1 according to the first embodiment of the present invention is mainly suitable for a simple application individually attached to a garbage collection point, a composting apparatus, an odor branch duct of a human waste treatment apparatus, and the like. The air purifying device 14 is mainly used for purifying indoor air containing chemical substances such as formaldehyde that causes allergies and asthma, living organisms such as mushrooms and resistant bacteria, and substances derived therefrom. The air purifying apparatus of the third embodiment is suitable for circulation treatment of kitchens, toilets and toilets, etc., and is mainly used for schools and hospitals that take in outside air contaminated with automobile exhaust gas or combustion gas containing dioxin. The air purifying apparatus of the fourth embodiment is suitable for air conditioning of office buildings, etc., and is used for centralized exhaust treatment of underground parking lots, underground motorways, etc., garbage collection facilities, human waste treatment facilities, sewage treatment facilities, composting equipment Decentralization It is suitable for such treatment.

The present invention is not limited to the embodiment shown in FIGS. 1 to 4 described above.
The waveforms of 2A and 52B are not only triangular waveforms or trapezoidal waveforms but also undulating waveforms that draw a sine curve and those appropriately combined, and furthermore, mushroom shapes, polygonal pyramids,
Vertical stripes, horizontal stripes, and small protrusions or the like obtained by appropriately combining the stripes may be provided.
The corrugated plates forming 32, 52A, and 53A have different waveforms, wavelengths, and amplitudes of adjacent ones instead of all having the same waveform, or have the same wavelength, even if they have the same waveform. And / or may have different amplitudes,
Further, the laminated corrugated plate may be supported in a rectifying slit shape by a plurality of through bars and a spacer.

The light irradiation lamps 10, 23, 35, 5
An illuminance adjuster may be attached to 4, and a centralized monitoring panel may be equipped with a lamp-off indicator connected to a terminal. If the dust concentration in the harmful gas is high or the moisture content is high, use it for pretreatment. A dust removing device, a dehumidifying device, a cleaning device for a turbulent air passage, and the like may be provided, and may be appropriately incorporated into an enhancement of a conventional method, and various other changes may be made without departing from the scope of the present invention. It is.

Next, the experimental results of the odor gas purifying process performed by the air purifying apparatus of the present invention configured as described above are shown in Table 1 “Odor gas purifying test”.

[0033]

[Table 1]

The "odor gas purification test" shown in Table 1 is for the purpose of deodorizing exhaust gas from a compost plant using garbage as a main raw material.
The bypass was installed in the introduction duct of the deodorizer constructed by the conventional technique. Incidentally, the deodorizing apparatus of the conventional method was composed of a blowing device, a water washing device, a sulfuric acid washing device, a biodegradation device, and the like. Although there was almost no difference between the deodorizing effect of the present invention and that of the conventional method, the pressure loss and the required site area were about 40% or less and 20% or less of the conventional method, respectively.

According to the air purifying apparatus of the present invention, it is possible to completely remove the filler such as activated carbon and lahiscilling which increase the pressure loss and the chemicals such as caustic soda and sulfuric acid which require the circulation, neutralization and waste water treatment of the absorbent. Not required, the required pressure, output and rotation speed of the blower are reduced, and the electricity consumption and noise / vibration values are more than 30% and 20% lower than the conventional method, respectively.
% Or more, it is possible to reduce the equipment construction cost and operation management to 40 to 50% or less of the conventional method.

[0036]

Since the present invention is configured as described above, it has the following effects.

Since the reaction section is a very simple structure composed of a plurality of turbulent air passages in which the gas contact portion is covered with titanium oxide and a light irradiation lamp provided therein, the operation can be simplified. Can be

A plurality of turbulent air passages constituting the reaction section are empty airway-like spaces partitioned by a plurality of corrugated plates laminated so as not to contact each other. The required number is always only one unit greater than the required number of turbulent airflows required for the treatment of harmful gases, and the required thickness of the corrugated plate is 1 to Since the front and back surfaces of the corrugated plate, which is relatively thin with a thickness of about 3 mm, are coated with titanium oxide to increase the surface area of titanium oxide per required total space, not only the size and weight can be reduced, but also the processing amount and As the required number of turbulent air passages increases, the required number per corrugated plate throughput and the effect of reducing the weight increase, so that the merits of scale of the apparatus can be increased.

Then, a harmful gas flowing through a plurality of turbulent air paths constituting the reaction section is irradiated by a light irradiation lamp on the titanium oxide surface coated on the gas contact portion, and appears on the titanium oxide surface at the moment of light reception. Since the purification treatment is performed by the titanium oxide photocatalyst, the pressure loss such as lahiscilling can be increased and the filler that blocks the gas flow and the light can be made unnecessary, so that the required pressure and output of the blower and the noise and noise generated by the same are required. Not only can the vibration value be reduced, but also maximum load operation can be performed immediately after the engine is started, reducing power consumption and reducing pollution.

Furthermore, since the harmful gas flowing through the plurality of turbulent air passages constituting the reaction section is directly decomposed by the photocatalytic action of titanium oxide, it is a dry purification treatment method. Since a neutralization device and a wastewater treatment device are not required, the number of consumables and the number of devices can be reduced, and pollution-free treatment can be performed, so that the construction cost and operation management cost of the device can be reduced.

Also, the waveforms of the plurality of corrugated plates that are stacked to define the shape of the turbulent airflow path are triangular, trapezoidal, sine-curve, undulating, etc. Turbulent air passages of various shapes can be formed by combining the corrugated plates with the optimal waveform each time according to the processing amount, composition and concentration of harmful gases. An optimum turbulent flow that can express the titanium oxide photocatalytic action and the renewal action of the gas-solid interface where the flow of the harmful gas comes into contact is obtained.

Furthermore, by forming the turbulent airflow path with a corrugated plate having the same waveform but having a continuous shape while changing the wavelength and / or the amplitude regularly, the turbulent flow path is gradually reduced as the harmful gas purification proceeds. Purification processing can be performed sequentially according to the concentration, and purification efficiency can be increased.

The surface of the corrugated plate is provided with a mushroom-like shape, a polygonal pyramid shape, a vertical stripe shape, a horizontal stripe shape, and a large number of small protrusions which are appropriately combined with each other. By increasing the size and controlling the turbulence in which the vortex generated according to the gas flow velocity causes the air-solid surface renewal effect, the followability to the load fluctuation can be improved.

Further, the corrugated plates are arranged so that adjacent ones do not contact each other with the same waveform, wavelength, amplitude, etc., those having only different waveforms, and those having only the same wavelength, and Lamination can be performed so that the amplitude axis and amplitude phase match, or the mutual amplitude and phase have regular deviations. A turbulent flow path can be formed, and diversification of processing functions can be achieved.

Further, the light irradiation lamp is separated from the harmful gas flow by the transparent protective body, and is mounted so as to be detachable from the outside of the case at any time, and the life of the light irradiation lamp is relatively long.
With 6,000 to 9,000 hours, almost maintenance-free long-term continuous operation is possible.

Furthermore, since the light irradiation lamp is provided with an illuminance adjuster and / or a lamp-off indicator having a terminal connected to the centralized monitoring panel, unmanned operation becomes possible.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of an air purification device.

FIG. 2 is a sectional view showing a second embodiment of the air purification device.

FIG. 3 is a sectional view showing a third embodiment of the air purification device.

FIG. 4 is a sectional view showing a fourth embodiment of the air purification device.

[Explanation of symbols]

 1, 14, 27, 45 Air purification device 5, 17, 30 Reaction unit 7, 19, 32, 52A: 52B Corrugated plate 8, 20, 33, 50 Turbulent air passage 9, 21, 34, 53 Titanium oxide surface 10 , 23, 35, 54 Light irradiation lamps 11, 24, 36, 55 Transparent protective body 22 Illumination group 39 Dust chamber 48A First reaction section 48B Second reaction section 51 Flat plate 56 Turnback section A is there. B is an arrow indicating the direction in which the purified gas flows. C is an arrow indicating the direction in which the dust-containing purified gas flows. D is an arrow indicating the direction in which the primary purification gas flows.

Continued on the front page (51) Int.Cl. ⁶ Identification code FI B01J 35/02 B01D 53/36 G

Claims (2)

[Claims] 1. An air purifying apparatus for purifying harmful gas mainly generated by decomposition and combustion of organic substances derived from living organisms, and a reaction section for detoxifying the harmful gas while irradiating the harmful gas with light. The reaction section has an introduction section that supplies the harmful gas while expanding the reaction section, and the reaction section includes a plurality of turbulent air paths that impart turbulence to the harmful gas supplied from the introduction section,
The turbulent air path is formed by laminating a plurality of corrugated plates so as not to contact each other, a gas contact portion of the turbulent air path is coated with titanium oxide, and a plurality of light irradiation lamps are provided in the turbulent air path. An air purification device characterized by being provided with. 2. The air purifying apparatus according to claim 1, wherein the light irradiation lamp is separated from the harmful gas by a transparent protective body and is detachably mounted at any time.