JP6517053B2 - Air purification device - Google Patents

Description

The present invention relates to an air purifier that purifies air by removing (deodorizing) odor components such as an offensive odor substance and a volatile organic substance from the air.

As a purification device for purifying air (contaminated air) containing odorous components, a duct including a light transmission member covered with a contaminant removing member containing a photocatalyst such as titanium oxide and an adsorbent such as zeolite It arranges inside the mold type hollow structure, introduces polluted air into the inside of the duct type hollow structure, and in the process of passing the polluted air through the inside of the duct type hollow structure, the odor component contained is An apparatus for removal (decomposition by photocatalyst and removal by adsorption by adsorbent) has been proposed (see, for example, Patent Documents 1 and 2).

JP 2012-77997 A JP 2007-209594 A

For example, an offensive odor originating from a sewage treatment plant, a sludge treatment plant, a waste incineration site, a paint plant, etc. is generally a combined odor, and a specific odor component (specified offensive odor substance) is present for each emission source. And when complex odor is removed using the pollutant removal member containing a photocatalyst and an adsorbent, not all the specific malodorous substances which constitute the complex odor are removed efficiently, but removal by the pollutant removal member There are also certain odorous substances that are difficult to

For example, when the generation source is a sludge treatment plant, aldehydes, lower fatty acids, hydrogen sulfide, nitrides and the like become specific offensive odor substances. Here, aldehydes and hydrogen sulfide can not be expected to be adsorbed and removed by zeolite, and decomposition and removal by photocatalysts are mainly performed. However, since the rate of decomposition and removal by the photocatalyst is small, the duct type hollow structure is elongated to secure a sufficient decomposition time, and a large amount of contaminant removing members are disposed inside the duct type hollow structure. As a result, the size of the purification apparatus is increased, which causes problems such as an increase in the cost of manufacturing the apparatus and restrictions on the installation location. Furthermore, although the stench from the sludge treatment plant (specific malodorous substance) is generated continuously for 24 hours, at night can not decompose and remove the particular malodorous substances for the photocatalyst does not function, decompose and remove the particular malodorous substances in the rain The ability is reduced. For this reason, there is a problem that it can not always be removed in response to the generation of a specific offensive odor substance.

Also, the source is, if the paint shop, volatile organic compounds (VOC), aldehydes, and lower fatty acid is a particular malodorous substances, the amount of occurrence and type of the specific malodorous substances, depending on the operating conditions of paint shop It fluctuates greatly. For example, when the operation rate of a paint shop is in the upper limit range, a large amount of a specific offensive odor substance is generated and flows into the duct type hollow structure, so the decomposition removal while passing through the duct type hollow structure And there is a problem that the specific offensive odorous substance which has not been removed by adsorption is released from the inside of the duct type hollow structure to the outside (in the air). In order to solve this problem, for example, the duct type hollow structure may be lengthened, and a large amount of contaminant removing members may be disposed therein, but the size of the purification device is increased, which causes a problem of restriction of the installation location. And, if the paint shop is operating at a general operation rate, it will be preferable to reduce the amount of the specified offensive odor substances with a purification device having an excessive processing capacity, which is also preferable from the economic point of view Absent.

The present invention has been made in view of the above circumstances, and it is possible to respond quickly to a specific odorous component from various sources even if the amount of the component fluctuates without increasing the size of the apparatus. It is an object of the present invention to provide an air purifier capable of constantly performing stable removal of odorous components.

An air purification device according to the present invention in accordance with the above object is provided with an air intake port, an air exhaust port, and a sunlight intake window that can be opened and closed, and an air connecting the air intake port and the air exhaust port inside. A box provided with a circulation path, and an adsorbent disposed side by side along the air circulation path and adsorbing an odor component, the surface side being irradiated with sunlight through the sunlight intake window ( That is, an odor purification means provided with an air-permeable treated plate material provided with a photocatalyst layer which is activated by sunlight to decompose the odor component adsorbed on the adsorbent on one side);
It is provided on the upstream side of the odor purification means in communication with the air intake port, temporarily adsorbs the odorous component contained in the air, and the content ratio fluctuation of the odorous component in the air flowing into the odor purification means And inlet-side gas processing means, which is equipped with a buffer-adsorbent material for loading and unloading .
A plurality of the treated plate members are attached to a short frame having a width insertable into the air flow passage, with the longitudinal direction of each treated plate member aligned with the air flow direction in the air flow passage, and the adjacent treated plate members A plurality of processing units formed in a corrugated plate shape having a peak portion and a valley portion are arranged in the flow direction of the air in the air circulation path. The peak portion and the valley portion are disposed such that the flow of air having passed through the processing unit on the upstream side is partially blocked by the processing unit on the downstream side .

In the air purification apparatus of the present invention, before Kisho management unit, which is preferably disposed side by side so as to be out in the air flow path in an open state the solar capture window.

In the air purification device according to the present invention, the processing plate material of the processing unit is attached to the frame in a corrugated plate shape having a peak portion and a valley portion along the flow of air and is adjacent to the flow direction of the air. Preferably, the valley of the other processing unit is located at an intermediate position between adjacent ridges of one of the matching processing units.
Further, the processing plate material of the processing unit is attached in a standing state with an interval to the frame, and at the middle position of the processing plate material adjacent to one of the processing units adjacent in the air flow direction. The processing plate material of the processing unit may be located.

In the air purification device according to the present invention, a treatment agent which adsorbs and deodorizes a specific malodorous substance in an odor component is attached to the treatment plate material of the treatment unit in part or all of the treatment unit. Is preferred.

In the air purification device according to the present invention, the treatment unit is a zeolite-based treatment unit having the treatment plate containing zeolite as the adsorbent, and a sepiolite treatment unit having the treatment plate containing sepiolite as the adsorbent. And it can be set as any 1 or 2 or more combination of the silica gel type | system | group processing unit which has the said process board material containing a silica gel as said adsorption material.

In the air purification device according to the present invention, a second photocatalyst layer is formed on the back surface side (that is, the other surface side) of the treated plate material , and is surrounded by the second photocatalyst layer of the treated plate material which is disposed at an inclination. It is preferable that the second photocatalyst layer be activated by light irradiation from a light emitter disposed in the space to decompose the odor component.
And it is preferable to attach a light transmission type | mold dye-sensitized solar cell to the said sunlight taking-in window, and to supply the electric power electric-power-generated by this light transmission type | mold dye-sensitized solar cell to the said light emitter.

In the air purification device according to the present invention, it is preferable that unevenness generated in a length exceeding the particle size of the adsorbent is formed on the front and back surfaces of the treated plate material.

In the air purification device according to the present invention, the buffer adsorbent may be any one or a combination of one or more of a zeolite pellet layer, a sepiolite pellet layer, a silica gel pellet layer, and an activated carbon pellet layer.
Here, it is preferable that the buffer adsorbent contains a treating agent that adsorbs the specified malodorous substance in the odor component to deodorize.

In the air purification device according to the present invention, an aftertreatment adsorbent for adsorbing an odor component passing through the odor purification means and an intermediate product generated in the decomposition process of the odor component is taken in and out from the air outlet of the box. Preferably, an outlet side gas treatment means is provided which is provided.
Here, the post-treatment adsorbent can be any one or a combination of one or more of a zeolite pellet bed, a sepiolite pellet bed, a silica gel pellet bed, and an activated carbon pellet bed.

In the air purifier according to the present invention, it is preferable that an air blowing means for feeding clean air into the inlet side gas processing means is provided.

In the air purifier according to the present invention, hydrogen peroxide or ozone is brought into contact with air containing an odor component on the upstream side of the inlet-side gas processing means or in the middle of the inlet-side gas processing means and the odor purification means. Odor oxidation treatment means can be provided.

In the air purifier according to the present invention, the inlet-side gas processing means is provided on the upstream side of the odor purification means, and the air flowing into the odor purification means even if the content of odorous components in the air increases rapidly. Since the variation in the content of odorous components in the inside is leveled out, even if the amount of odorous components generated fluctuates at the generation source without making the odor purification means larger, the odorous components It becomes possible to perform stable removal continuously.

In the air purification apparatus of the present invention, the longitudinal direction of the plurality of processing plate materials processed plate material short framework with insertable width to the air distribution channel is mounted in accordance with the air flow direction in the air flow route formed processing unit, for example, so as to be out while opening the solar capture window side by side in the air flow route is installed, the installation of the processing unit, layout change processing unit, the replacement processing unit It can be done easily and quickly.

In the air purification apparatus of the present invention, passing process sheet processing units mounted side by side along the flow of air to the corrugated plate shape having a crest and valley portions framework, moreover, the processing unit of the front stage side flow of air, since the partially blocked by the processing unit of the subsequent stage, turbulence occurs in the flow of air, it is possible to facilitate contact between the air and the processing sheet. As a result, the odor component contained in the air can be efficiently adsorbed to the adsorbent contained in the treated plate material, and the adsorbed odor component can be further decomposed and removed by the photocatalyst.

In the air purification device according to the present invention, when a treatment agent that adsorbs a specific offensive odorous substance in the odor component is attached to a treated plate material of the treatment unit to a part or all of the treatment unit even malodorous substances hardly adsorbed hardly be or particular malodorous substances are decomposed and removed by the photocatalyst adsorbent odor purifier can remove certain malodorous substances when the air passes through.

In the air purification device according to the present invention, the treatment unit is a zeolite-based treatment unit having a treated plate containing zeolite as an adsorbent, a sepiolite treatment unit having a treated plate containing sepiolite as an adsorbent, and silica gel as an adsorbent When it consists of any one or two or more combinations of the silica gel processing unit which has the processing board material which contains the processing unit which odor component is easy to be adsorbed can be provided in the odor purification means every odor component, odor component The decomposition and removal can be carried out reliably each time.

In the air purification device according to the present invention, the second photocatalyst layer is formed on the back surface side of the treated plate material, and the second photocatalyst layer is activated by light irradiation from the light emitter disposed on the back surface side of the treated plate material. In the case of decomposing the components, the odorous components adsorbed by the adsorbent present on the back surface side of the treated plate can be subsequently decomposed and removed by the photocatalyst. As a result, it is possible to double the area on the treated plate where decomposition and removal of the odor component is performed, and to double the decomposition rate of the odor component.

In the air purifier according to the present invention, when a light transmission type dye-sensitized solar cell is attached to a sunlight intake window and power generated by the light transmission type dye-sensitized solar cell is supplied to a light emitter, sunlight is used The decomposition and removal of the odor component on the front surface side of the treated plate material and the decomposition and removal of the odor component on the back surface side of the treated plate material using light by the light emitter can be compatible. Thereby, the decomposition and removal of the odor component can be stably performed even when it is raining.
In addition, when the light generated by the light transmission type dye-sensitized solar cell is charged and the light emitter is turned on by the electric power charged at night, odor components are continuously generated for 24 hours as in a sludge treatment site. It can correspond.
Furthermore, in a situation where the odor component is not generated at night, the regeneration process of the adsorbent is performed by decomposing and removing the odor component trapped in the adsorbent by the second photocatalyst layer by lighting the light emitter at night. Can.

In the air purification device according to the present invention, when irregularities generated in a length exceeding the particle size of the adsorbent are formed on the front and back surfaces of the treated plate, the specific surface area of the treated plate increases and the adsorbent appears on the surface Both the amount and the amount of photocatalyst can be increased.

In the air purification device according to the present invention, when the buffer adsorbent material comprises any one or a combination of one or more of a zeolite pellet layer, a sepiolite pellet layer, a silica gel pellet layer, and an activated carbon pellet layer, Each odor component can be selectively adsorbed, and even if the generation amount of the odor component fluctuates in the generation source, the content ratio fluctuation of the odor component in the air flowing into the odor purification means can be easily leveled easily it can.

In the air purification device according to the present invention, when the buffer adsorbent contains a treatment agent that adsorbs the specified malodorous substance in the odor component to deodorize, the specific malodorous substance is less likely to be adsorbed by the adsorbent and the photocatalyst is Even if it is difficult to decompose and remove at this time, it can be removed by the inlet side gas treatment means.

In the air purification device according to the present invention, the post-treatment adsorbent for adsorbing the odor component passing through the odor purification means and the intermediate product generated in the decomposition process of the odor component is provided in the air outlet of the box. When the outlet side gas treatment means is provided, it is possible to prevent the outflow to the atmosphere even if an odorous intermediate product is generated in the decomposition process by the photocatalyst in the odorous component.

In the air purification device according to the present invention, when the post-treatment adsorbent material comprises any one or a combination of one or more of a zeolite pellet layer, a sepiolite pellet layer, a silica gel pellet layer, and an activated carbon pellet layer, the odor component is separated by photocatalyst. even intermediate products of various odorous occurs at understood that the process can be prevented from flowing out to the atmosphere.

In the air purification device according to the present invention, when the air blowing means for feeding clean air into the inlet side gas processing means is provided, the air containing the odor component does not flow into the inlet side gas processing means. By feeding clean air into the inlet side gas treatment means, the odorous components adsorbed on the buffer adsorbent can be separated and mixed in the air, and the buffer adsorbent can be regenerated.

In the air purification apparatus according to the present invention, odor oxidation is performed by contacting hydrogen peroxide or ozone with air containing an odor component on the upstream side of the inlet gas processing means or in the middle of the inlet gas processing means and the odor purification means. When the treatment means is provided, even if the content of odorous components in the air increases rapidly, the content of odorous components can be rapidly reduced to the content of odorous components within the processing capacity range of the air purifier. The components can be reliably removed.
And, if the odor oxidation treatment means is installed on the upstream side of the inlet side gas treatment means, the content of the odorous component contained in the air can be reduced to a level where adsorption removal by the inlet side gas treatment means is possible. If the oxidation treatment means is installed in the middle of the inlet side gas treatment means and the odor purification means, the odorous components which have not been adsorbed and removed by the inlet side gas treatment means can be decomposed and removed before flowing into the odor purification means. Even when the photocatalyst such as nighttime or rainy weather is not activated, the air containing no odor component can be discharged from the air purification device.

It is a block diagram of the air purification device concerning a 1st embodiment of the present invention. It is a perspective view of the odor purification means of the same air purification apparatus. It is a plane sectional view of the odor purification means of the air purification device. It is a perspective view of a processing unit adjacent to the flow direction of air. It is a fragmentary sectional view of the odor purification means which concerns on a modification. It is a top view of a processing unit concerning a modification. It is a block diagram of the air purification device concerning a 2nd embodiment of the present invention. (A) is a conceptual diagram of the air purification apparatus used in Example 1, (B) is a plane sectional view of the odor purification means of the air purification apparatus. It is a graph which shows the time change of the VOC concentration contained in the air on the entrance side and the exit side in the air purification device of Example 1. It is a graph which shows the time change of the VOC concentration contained in the air of the entrance side and the exit side in the air purification device of comparative example 1. FIG. 6 is a conceptual view of an air purification device used in Example 2. It is a graph which shows the time change of the odor concentration contained in the air of the entrance side and the exit side in the air purification device of Example 2. It is a bar graph which shows the odor component analysis result using the gas chromatograph of the exhaust gas which flows in into the odor purification means of the air purification apparatus of Example 2, and the exhaust gas discharged | emitted from the odor purification means. It is a bar graph which shows the component reduction rate for every odor component calculated | required from the odor component analysis result of FIG. It is a bar graph which shows the odor component analysis result using the odor sensor of the exhaust gas which flows in into the odor purification means of the air purification apparatus of Example 2, and the exhaust gas discharged | emitted from the odor purification means.

Next, embodiments of the present invention will be described with reference to the attached drawings for understanding of the present invention.
As shown in FIGS. 1, 2 and 3, the air purification device 10 according to the first embodiment of the present invention includes an air intake port 11, an air exhaust port 12, and a sunlight intake window that can be opened and closed. 13 is provided, and the odor purification | cleaning means 17 provided with the box 14 in which the air circulation path 35 which connects the air inlet 11 and the air outlet 12 was provided in the inside is provided.

Further, the air purification device 10 is provided on the upstream side of the odor purification means 17 in communication with the air intake port 11, temporarily adsorbs odorous components contained in the air, and flows into the odor purification means 17. An inlet-side gas processing means 19 provided with a buffer adsorbent 18 capable of taking in and out a buffer adsorbent 18 for leveling the content fluctuation of the odor component is provided downstream of the odor purification means 17 and in communication with the air outlet 12; An outlet side gas processing means 21 is provided which is capable of taking in and out an aftertreatment adsorbent 20 for adsorbing an odor component passing through the odor purification means 17 and an intermediate product generated in the decomposition process of the odor component.

The odor purification means 17 contains a powder of zeolite (having a particle diameter of 0.2 mm or less) which is an example of an adsorbent that adsorbs odorous components, and the solar light incident on one surface (surface) from the solar light intake window 13 An air-permeable treated plate member 16 (see FIG. 4) provided with a photocatalyst layer 15 provided with a photocatalyst layer 15 for decomposing odorous components activated by light and adsorbed to the zeolite, and powder of zeolite, one surface (surface) And an air-permeable treated plate (not shown) on which a photocatalyst layer for decomposing odorous components adsorbed on zeolite is provided, and a treatment agent for selectively adsorbing hydrogen sulfide and deodorizing is attached thereto; An air-permeable layer containing a powder of sepiolite (particle diameter of 75 μm or less) which is an example of an adsorbing material for adsorbing components, and provided on one surface (surface) with a photocatalyst layer for decomposing odor components adsorbed by sepiolite Processed plate material (having Has a Shimese not) and. The treatment plate 16 and the above-mentioned treatment plate (not shown) are arranged in the box 14 along the air flow path 35. The details will be described below.

The box 14 of the odor purification means 17 is, for example, a rectangular window attachment frame 22 having an opening to which a plurality of (five in FIG. 2) rectangular solar light intake windows 13 are attached so as to be able to open and close. And connecting the respective end edges of the window attachment frame 22 and the respective end edges of the bottom plate 23 with a rectangular bottom plate 23 provided below the window attachment frame 22 and facing the window attachment frame 22. And a side frame portion 24 provided. The window attachment frame 22 can be formed of, for example, a metal such as aluminum, an aluminum alloy, or stainless steel, and the bottom plate 23 and the side frame portion 24 can be formed of, for example, a fiber reinforced resin.

Further, the solar light intake window 13 is made of, for example, a rectangular transparent plate 25 formed of transparent glass or transparent resin, and a metal (eg, aluminum, aluminum alloy, stainless steel) for holding the peripheral portion of the transparent plate 25. And a rectangular window frame 26 formed. Then, one side of the window frame 26 is rotatably attached to the opening of the window attachment frame 22 through a hinge toward the outside, and the sunlight intake window 13 can be opened and closed. In addition, the code | symbol 27 is a latching tool which fixes the window frame 26 of the sunlight uptake | capture window 13 of the closed state to the window attachment frame 22. As shown in FIG.

The size of the box 14 is not particularly limited, and is appropriately set according to the place to be installed, the amount of air containing an odor component to be treated, and the like. Further, the air intake port 11 and the air exhaust port 12 are provided side by side in the width direction of the side plate 28 disposed on one side in the longitudinal direction of the side frame portion 24. And as shown in FIG. 2, the box 14 of the odor purification | cleaning means 17 has the longitudinal direction of the box 14 east-west so that sunlight may inject into the box 14 uniformly from the sunlight intake window 13. In the direction, the normal of the solar light intake window 13 is placed on the tilt table 29 so as to be inclined to the south side with respect to the vertical line set at the installation location. At this time, the height position of the air intake port 11 is arranged to be higher than the height position of the air discharge port 12. In addition, it is preferable to set suitably the inclination | tilt angle at the time of making the box 14 incline, for example in 10 degrees or more and 50 degrees or less according to the place (latitude) used, a season, etc.
Further, reference numerals 30 and 31 denote length-adjustable legs respectively provided on both sides in the width direction (direction orthogonal to the longitudinal direction) of the inclined table 29.

As shown in FIG. 3, inside the box 14, the bottom plate 23 is erected parallel to each other along the longitudinal direction of the box 14, and one end face in the longitudinal direction is the air intake port 11 of the side plate 28. And the air outlet 12 are joined at equal intervals, and the other end face of the side plate 32 facing the side plate 28 is spaced apart from the side plate 32 by a first partition plate 33, and the adjacent first partition plate 33 A second end plate is erected on the bottom plate 23 parallel to the first partition plate 33 at a central position of the second plate, and one end face in the longitudinal direction faces the side plate 28 with a gap, and the other end face is joined to the side plate 32 Partition plate 34 is provided. Here, the height positions of the upper surfaces of the first and second partition plates 33 and 34 erected on the bottom plate 23 and the height positions of the upper surface of the side frame portion 24 connected to each edge of the bottom plate 23 are formed equal. It is done.

Therefore, packings (not shown) are attached to the upper surfaces of the first and second partition plates 33 and 34 and the upper surface of the side frame portion 24 respectively, and the window mounting frame 22 is mounted on the upper surface of the side frame portion 24 via the packing. Are connected to each other, and the solar light intake window 13 is attached to the window attachment frame 22, the transparent plate 25 of the solar light inlet window 13 is used as the first and second partition plates when the solar light intake window 13 is closed. The upper surfaces of 33 and 34 can be pressed through packing, and the upper portions of the side frame portion 24 and the first and second partition plates 33 and 34 are sealed by the window attachment frame 22 and the solar light intake window 13 be able to.

Thereby, one side communicates with the air intake port 11 and the other side communicates with the air discharge port 12 using the inner surface of the side frame portion 24 and the first and second partition plates 33 and 34 inside the box 14. In addition, the air circulation path 35 can be formed to reciprocate a plurality of times between the side plate 28 and the side plate 32. The material of the first and second partition plates 33 and 34 is not particularly limited as long as it is non-air-permeable, and can be formed of, for example, metal, fiber reinforced resin, etc., and the first and second partitions The thickness of the plates 33 and 34 is not particularly limited as long as it does not deform when it is pressed by the transparent plate 25 of the sunlight intake window 13 through the packing.

As shown in FIG. 4, the treated plate material 16 has a short metal (for example, aluminum, aluminum alloy, or stainless steel) framework 36, 36 a having a width and a height that can be inserted into the air circulation path 35. And one end portions of adjacent processing plate members 16 are brought into contact with each other such that a triangular wave-shaped corrugated plate which is an example of a corrugated plate having a peak portion 37 and a valley portion 38 along the flow of air is formed. The zeolite-based processing units (examples of the processing units) 39 and 40 are mounted in an inclined state. That is, the plurality of processing plate members 16 are attached side by side to the frameworks 36, 36 a in alignment with the flow direction of the air in the air circulation path 35 in the longitudinal direction of the processing plate members 16.
Here, in the zeolite-based processing units 39 and 40 adjacent to each other in the air flow direction, the phases of the repetition periods of the peak portion 37 and the valley portion 38 of the corrugated sheet are in a relation of being shifted by half a wavelength. In addition, when attaching the process board material 16 to the frameworks 36 and 36a, the surface (surface) provided with the photocatalyst layer 15 is all directed to the same side (the side to which the sunlight is irradiated through the sunlight intake window 13). As described above, the surface angle between adjacent processing plate members 16 is, for example, 10 ° or more and 40 ° or less.

The treated plate material 16 (a treated plate material containing zeolite and having a treatment agent attached thereto and the same as in the case of a treated plate material containing sepiolite) was formed into a plate shape using a cement which is an example of an inorganic binder. It is obtained by providing the photocatalyst layer 15 formed by thermal spraying of titanium dioxide powder, for example, on one surface side of the substrate 16a. The zeolite is preferably subjected to a hydrophobization treatment with a water repellent (for example, alkoxysilane such as methyltrimethoxysilane and phenyltriethoxysilane, and silazane such as hexamethyldisilazane).

Thereby, when the odorous component is adsorbed by the adsorbent, it can be prevented from being dissolved in water adhering to the surface of the adsorbent, and the decomposition by the photocatalyst can be efficiently performed. The thickness of the treated plate material 16 is 2 mm or more and 10 mm or less, preferably 3 mm or more and 5 mm or less. Further, the width and the length of the treatment plate 16 are not particularly limited, and are adjusted according to the convenience of handling and the size of the air circulation path 35. In addition, it is preferable that the unevenness | corrugation of the length exceeding the particle size of an adsorption material is formed in the surface and back surface of the process board material 16. As shown in FIG. Thus, the effective surface area of the processing plate 16 in contact with air can be increased.

The blending ratio of cement when molding the substrate 16a is preferably 5% by mass or more and 30% by mass or less. As a result, the substrate 16a becomes porous, so that the treated plate material 16 can be provided with air permeability, and the odor component adsorbed on the surface side where the photocatalyst layer 15 is not formed is the surface side where the photocatalyst layer 15 is formed. It can be moved toward and disassembled. Here, when the blending ratio of cement is less than 5% by mass, the function as a binder can not be sufficiently exhibited, and when it exceeds 30% by mass, the surface of the adsorbent is covered with cement and the exposure ratio Unfavorably because it is reduced and the adsorptivity is impaired. In forming the substrate 16a, inorganic fibers (for example, glass fibers, silica fibers, alumina fibers, etc.) may be further added. By adding the inorganic fiber, breakage of the substrate 16a can be suppressed.

Treatment that desorbs odor by selectively adsorbing hydrogen sulfide (an example of a specific malodorous substance in the odor component), which contains zeolite and decomposes the odor component adsorbed on the zeolite on one side. The treated plate material to which the agent is attached is dipped in a solution in which the treated agent which adsorbs hydrogen sulfide selectively and deodorizes is dispersed, or this solution is applied to the surface of the treated plate 16 It produced by doing. And the processing board material which adsorbed the hydrogen sulfide and attached the processing agent which deodorizes adheres to the frameworks 36 and 36a like the case of the processing board material 16, and constitutes a zeolite system processing unit (an example of processing unit) 39a and 40a. did. Further, a sepiolite-based processing unit (an example of the processing unit) 41 is attached to the frameworks 36 and 36a by attaching a treated plate material containing sepiolite and provided with a photocatalyst layer which decomposes an odor component adsorbed on the sepiolite on one side. Configured 42.

Here, the zeolite-based processing unit 39a and the sepiolite-based processing unit 41 have the same wavelength and the same phase as the zeolite-based processing unit 39, and the zeolite-based processing unit 40a and the sepiolite-based processing unit 42 each It has the same wavelength and the same phase as the zeolite-based processing unit 40. Accordingly, the zeolite-based processing unit 39a and the zeolite-based processing unit 40a are in a relationship in which the phases are mutually shifted by half a wavelength, and the sepiolite-based processing unit 41 and the sepiolite-based processing unit 42 are in a relationship where the phases are mutually shifted by half wavelength.

Since the width of the frameworks 36 and 36a is such that the frameworks 36 and 36a can be inserted into the air circulation path 35, the zeolite-based processing units 39 and 40, the zeolite-based processing units 39a and 40a, and the sepiolite-based processing units 41 and 42 are air circulation paths. It can be inserted into 35. Therefore, the solar light intake window 13 is opened, and the zeolite-based processing units 39 and 40, the zeolite-based processing units 39a and 40a, and the sepiolite-based processing units 41 and 42 are provided in the air flow path 35 in the air flow path 35. The zeolite-based processing units 39, 40, 39a, 40a and the sepiolite-based processing units 41, 42 can be taken out from the inside of the air flow path 35 according to the air flow direction.

In FIG. 3, the air flow path 35 is divided into two in the air flow direction, and the zeolite-based processing units 39 and 40 are inserted into the air flow path 35 in the upstream region. Further, the downstream region of the air circulation passage 35 is further divided into two in the air flow direction, and the zeolite-based processing units 39a and 40a are arranged in the upstream air circulation passage 35 and in the air circulation passage 35 on the downstream side. The sepiolite-based processing units 41 and 42 are inserted respectively. The number of the zeolite-based processing units 39 and 40, the zeolite-based processing units 39a and 40a, and the sepiolite-based processing units 41 and 42 inserted into the air flow path 35 according to the content of the odor component contained in the air is It can be changed.

Here, in the zeolite-based processing units 39 and 40, the zeolite-based processing units 39a and 40a, and the sepiolite-based processing units 41 and 42 inserted into the air flow path 35, the side on which the photocatalytic layer of each treated plate is provided faces upward. To arrange. As a result, it is possible to activate the photocatalyst by causing the sunlight passing through the sunlight intake window 13 to be incident on the photocatalyst layer. Furthermore, the zeolite-based processing unit 39 and the zeolite-based processing unit 40 inserted in the air flow path 35 (the same applies to the zeolite-based processing unit 39a and the zeolite-based processing unit 40a, and the sepiolite-based processing unit 41 and the sepiolite-based processing unit 42) Are arranged adjacent to each other in the air flow direction.

The arrangement order of the zeolite-based processing units 39 and 40, the zeolite-based processing units 39a and 40a, and the sepiolite-based processing units 41 and 42 in the air circulation path 35 is not particularly limited and may be arbitrarily changed. it can. Furthermore, in the processing units adjacent in the air flow direction, the regularity is satisfied such that the valleys (peaks) of the downstream processing unit are located at the middle position between adjacent peaks (valleys) of the upstream processing unit The zeolite-based processing units 39 and 40, the zeolite-based processing units 39a and 40a, and the sepiolite-based processing units 41 and 42 may be arranged in any order in the air flow direction.

Furthermore, a silica gel-based process having a treated plate material containing silica gel as an adsorbent, of zeolite-based processing units 39, 40, 39a, 40a and sepiolite-based processing units 41, 42 provided in the odor purification means 17 It can be replaced by a unit. In the silica gel processing unit, two types of silica gel processing units having the same wavelength and the same phase as the zeolite processing units 39 and 40 and having phases shifted by half a wavelength may be formed. preferable.

Here, the number of treated plate members 16 constituting the zeolite-based processing units 39 and 40 (total surface area on the side to which sunlight is incident), the number of treated plate members constituting the zeolite-based processing units 39a and 40a (in which sunlight is incident The total surface area on the side and the number of processed plate materials (total surface area on the side on which sunlight is incident) constituting the sepiolite-based processing units 41 and 42 is the content of the odor component in the air and the amount of air (air flow path It is determined in accordance with the flow rate of air passing through the inside of 35 and the removal rate by the adsorption of the odor component by the treated plate (adsorbent) and the decomposition by the treated plate (photocatalyst).

When the content of the odorous component contained in the air flowing out from the generation source fluctuates significantly (when it temporarily increases rapidly), when trying to make the odorous component content in the air less than the target value with the odor purification means 17 alone, It is necessary to upsize the odor purification means 17 (increase the number of treated plate materials). Therefore, as shown in FIG. 1, the inlet side gas processing means 19 having the buffer adsorbent 18 and the storage tank 18a of the buffer adsorbent 18 is provided, and the odor component is adsorbed by the buffer adsorbent 18 (temporarily adsorbed) Even if the amount of generation of the odor component fluctuates at the generation source, the content fluctuation of the odor component in the air flowing into the odor purification means 17 is leveled, that is, the concentration of the odor component in the air Adjust within the range of the removal ability of the odor component by 17. By this, the removal function of the odor component of the odor purification means 17 can fully be exhibited.

Here, since the odor component removing ability is determined according to the adsorption performance of the treated plate material (adsorbent) to the odor component and the decomposition performance of the treated plate material (photocatalyst or photocatalyst + treatment agent), the air discharged from the odor purification means 17 In order to make the content of odorous components in the medium equal to or less than the target value, an upper limit exists in the flow velocity of the air passing through the odor purification means 17. For this reason, the zeolite pellet which comprises the buffer adsorption material 18 according to the odor component content (each odor component content) contained in the air which flows out from a generation source, and the adsorption performance with respect to the odor component of zeolite, sepiolite, and each silica gel Determine the amount of sepiolite pellet and silica gel pellet used. Therefore, the thickness of the zeolite pellet layer 43, the sepiolite pellet layer 44, and the silica gel pellet layer 45 is such that the flow velocity of the air passing through the inside of the odor purifying means 17 becomes equal to or lower than the upper limit. Determined according to the internal volume.

The buffer adsorption material 18 is, for example, a zeolite pellet layer 43 having a zeolite pellet having a diameter of 6 mm and a length of 6 to 15 mm and having a treatment agent applied thereon which selectively adsorbs hydrogen sulfide and deodorizes it; For example, sepiolite pellet layer 44 having columnar sepiolite pellets having a diameter of 2.5 mm and a length of 3 to 10 mm, and silica gel pellet layer 45 having spherical silica gel pellets having a particle size of, for example, 3 to 5 mm ing. The order of arrangement of the zeolite pellet layer 43, the sepiolite pellet layer 44, and the silica gel pellet layer 45 constituting the buffer adsorbent 18 is not particularly specified.
An activated carbon pellet layer may be added to the zeolite pellet layer 43, the sepiolite pellet layer 44, and the silica gel pellet layer 45.

When the reduction of the odor component by the odor purification means 17 does not reach the target value due to the weather, etc., or when an intermediate product is generated in the decomposition process of the odor component, as shown in FIG. And an outlet-side gas processing means 21 having a storage tank 20 a for the post-treatment adsorbent 20. Here, the post-treatment adsorbent 20 has a particle diameter of, for example, a zeolite pellet layer 46 having columnar zeolite pellets having a diameter of 6 mm and a length of 6 to 15 mm, for example, a diameter of 2.5 mm and a length A sepiolite pellet layer 47 having columnar sepiolite pellets of 3 to 10 mm, and a silica gel pellet layer 48 having spherical silica gel pellets having a particle size of 3 to 5 mm, for example. Here, the order of the arrangement of the zeolite pellet layer 46, the sepiolite pellet layer 47, and the silica gel pellet layer 48 constituting the post-treatment adsorbent 20 is not particularly specified.

The amounts of zeolite pellets, sepiolite pellets, and silica gel pellets that constitute the post-treatment adsorbent 20 are the contents of the odor components contained in the air discharged from the odor purification means 17 (the content of each odor component), It determines according to the adsorption performance with respect to the odor component of each of a zeolite pellet, a sepiolite pellet, and a silica gel pellet. Therefore, the thickness of the zeolite pellet layer 46, the sepiolite pellet layer 47, and the silica gel pellet layer 48 is determined according to the internal volume of the storage tank 20a of the post-treatment adsorbent 20.
Also, in addition to the zeolite pellet layer 46, the sepiolite pellet layer 47, and the silica gel pellet layer 48, an activated carbon pellet layer may be added.

Subsequently, the operation of the air purification device 10 according to the first embodiment of the present invention will be described.
The air purification device 10 has an inlet-side gas processing means 19 upstream of the odor purification means 17. For this reason, when the amount of the combined odorous air fluctuates significantly over time, the combined odorous air is introduced into the odor purification means 17 via the inlet side gas treatment means 19, so a part of hydrogen sulfide is produced. Is adsorbed and deodorized by the zeolite pellet layer 43, and odorous components except hydrogen sulfide are temporarily adsorbed by the buffer adsorbent 18. (Aldehyde type odorous components are efficiently adsorbed by the sepiolite pellet layer 44, and amine type odorous components are silica gel The volatile organic substance odor component and the lower fatty acid odor component are efficiently adsorbed by the pellet layer 45, and uniformly adsorbed by the zeolite pellet layer 43, the sepiolite pellet layer 44, and the silica gel pellet layer 45). As a result, the fluctuation of the content (odor concentration) of the odor component contained in the combined odorous air flowing into the odor purification means 17 can be made (leveled) within the processing capacity range of the odor purification means 17 . As a result, even if the generation amount of the combined odor air fluctuates greatly at the generation source (even if it increases rapidly), the odor purification means 17 is not increased in size, and the combined odor air is temporarily stored in a tank or the like. Without doing so, it becomes possible to respond stably to the fluctuations and continuously perform the stable removal of the odor component.

Here, the odor purification means 17 includes (a) a treated plate member 16 containing zeolite, and (b) a treated plate member to which a treatment agent which selectively adsorbs hydrogen sulfide and deodorizes is attached. And (c) a treated plate containing sepiolite, which is attached to the framework 36, 36a having a width and a height insertable in the air flow path 35, respectively, and the zeolitic treatment unit 39, 40, the zeolitic treatment unit 39a, 40a, and sepiolite-based processing units 41, 42 are configured. For this reason, the sunlight intake window 13 of the box 14 is opened, and as shown in FIG. 3, the air circulation path 35 is divided into two in the air flow direction, and the photocatalyst in the upstream region of the air circulation path 35 The zeolite-based processing units 39 and 40 are sequentially inserted so that the layer 15 faces upward, and the downstream region in the air circulation passage 35 is further divided into two in the air flow direction, and the air circulation passage of the upstream portion The zeolite-based processing units 39a and 40a are sequentially inserted so that the photocatalyst layer faces upward in 35, and the sepiolite-based processing units 41 and 42 so that the photocatalyst layer faces upward in the air flow path 35 of the downstream portion. Can be inserted in order. As a result, the treatment plate can be efficiently arranged in the air flow path 35 of the odor purification means 17.

Further, in the zeolite-based processing units 39 and 40, the zeolite-based processing units 39a and 40a, and the sepiolite-based processing units 41 and 42 provided in line in the air circulation path 35, adjacent valleys of the processing units disposed on the upstream side Since adjacent ridges 37 of the processing unit disposed downstream are located at an intermediate position of the portion 38, the flow of air passing through the valleys 38 of the upstream processing unit corresponds to the ridges of the downstream processing unit The air is blocked by the portion 37 and turbulence occurs in the flow of air flowing into the valley portion 38 of the downstream processing unit. Therefore, the contact between the air and the treated plate is promoted, and the odor component is efficiently adsorbed to the zeolite and sepiolite contained in the treated plate. And since sunlight injects into the photocatalyst layer of a process board material through the sunlight taking-in window 13, the adsorbed odor component is decomposed and removed by the activated photocatalyst.

For example, a composite odor air containing a plurality of odor components (hydrogen sulfide odor component, volatile organic substance (VOC) odor component, aldehyde odor component, lower fatty acid odor component, and amine odor component), and an air purification device In the case of purification using 10, hydrogen sulfide odor components are inherently difficult to be adsorbed to zeolite, and the rate of decomposition and removal by photocatalyst is small, but treatment with a treatment agent attached that desorbs hydrogen sulfide selectively to remove odor By arranging the zeolite-based processing units 39a and 40a having a plate material, hydrogen sulfide in the combined odor air can be efficiently adsorbed and deodorized. Further, although the aldehyde-based odor component is difficult to be adsorbed by the zeolite, it can be efficiently adsorbed and decomposed when passing through the sepiolite-based processing units 41 and 42. The volatile organic substance odor component, the lower fatty acid odor component, and the amine odor component uniformly pass through the zeolite processing units 39, 40, 39a, 40a, and the sepiolite processing units 41, 42. It can be adsorbed and disassembled.

Furthermore, in the air purification device 10, the treated air discharged from the air outlet 12 of the odor purification means 17 is a post-treated adsorbent composed of the zeolite pellet layer 46, the sepiolite pellet layer 47, and the silica gel pellet layer 48 inside. 20 is discharged to the atmosphere via the outlet side gas processing means 21 provided. Therefore, when each odor component contained in the combined odorous air is decomposed by the photocatalyst by the odor purification means 17, even if an odorous intermediate product is generated in the decomposition process, post-treatment adsorption of the outlet side gas processing means 21 It can be adsorbed on the material 20 to prevent outflow to the atmosphere. For example, when butyl acetate is the main component of the volatile organic substance contained in the combined odorous air, isobutyraldehyde is formed as an intermediate product of the decomposition process, but when isobutyraldehyde passes through the outlet side gas treatment means 21, sepiolite The pellet layer 47 can be efficiently adsorbed to prevent its release into the atmosphere.

Each treated plate provided in the box 14 of the odor purification means 17 is attached to the frameworks 36, 36a for each type of the contained adsorbent to form a treatment unit, so according to the change of the odor component composition of the combined odor air It is possible to efficiently change the order of the processing units disposed in the air circulation path 35 and change the type configuration of the processing units disposed in the air circulation path 35.
Further, since all of the zeolite pellet layer 43, the sepiolite pellet layer 44, and the silica gel pellet layer 45 constituting the buffer adsorbent 18 of the inlet side gas processing means 19 can be taken in and out, Therefore, the zeolite pellet layer 46, the sepiolite pellet layer 47, and the silica gel pellet layer 48 constituting the post-treatment adsorbent 20 of the outlet side gas processing means 21 can be taken in and out. According to the change of the intermediate product composition generated in the decomposition process, it becomes possible to make the optimum type composition.

As shown in FIG. 5, a processing unit 53 is configured by attaching to the frameworks 36 and 36a the processing plate 52 formed by providing the photocatalyst layer 50 on the front side of the substrate 49 and the second photocatalyst layer 51 on the back side. And the obtained processing unit 53 is inserted into the air flow path 35 of the box 14, and the bottom plate 23 of the box 14 is surrounded by the processing plate 52 disposed so as to be in contact with one end. A light emitter 54 (for example, an LED lamp) that emits visible light may be disposed in the space (on the back surface side of the processing plate 52). The light emitting portion (not shown) of the light transmission type dye-sensitized solar cell is attached to the transparent plate 25 of the sunlight intake window 13 provided in the box 14, and the power generated by the light transmission type dye-sensitized solar cell To the light emitter 54. In addition, the code | symbol 55 is the packing attached to the upper surface of the 1st partition plate 33 and the 2nd partition plate 34, respectively.

With such a configuration, the photocatalyst layer 50 can be activated by sunlight incident from the sunlight intake window 13, and the second photocatalyst layer 51 can be activated by visible light generated from the light emitter 54. As a result, the odor component adsorbed to the treated plate 52 can be simultaneously decomposed on the front side and the back side of the treated plate 52, and the decomposition rate of the odor component can be improved. As a result, the number of processing units 53 disposed in the air circulation path 35 can be reduced, and the odor purification means (box 14) can be made compact.

As shown in FIG. 6, the processing plate material 59 formed by providing the photocatalyst layers 57 and 58 on both surfaces of the substrate 56 is spaced apart from the frameworks 60 and 61 having a width and height that can be inserted into the air circulation path 35. The processing units 62 and 63 are provided in a standing condition and configured to form the processing units 62 and 63, and the obtained processing units 62 and 63 are inserted side by side in the air flow path 35 of the box 14 in the air flow direction. It is also good. Here, when the processing units 62 and 63 are arranged adjacent to each other in the air circulation path 35, the processing plate 59 of the processing unit 63 is located at an intermediate position between the adjacent processing plates 59 of the processing unit 62.

With such a configuration, the flow of air that has passed through the gap of the processing plate 59 of the processing unit 62 is partially blocked by the processing plate 59 of the processing unit 63, and the processing plate of the processing unit 63 Turbulence occurs in the flow of air flowing into the gap between 59, and the contact between the air and the processing plate 59 can be promoted. As a result, the odor component contained in the air can be efficiently adsorbed to the adsorbent contained in the treated plate 59, and the adsorbed odor component can be decomposed and removed by the photocatalyst. Further, the odor component can be decomposed on both sides of the processing plate 59, respectively. Here, since the box is installed on the inclined table so that the sunlight intake window provided in the box of the odor purification means faces the south side, the other side (the back side) of both sides of the processing plate 59 The amount of sunlight incident on) decreases. For this reason, it is preferable to install a reflective member for irregularly reflecting light in the gap of the processing plate 59.

In addition, a fan (one example of an air blowing means) for feeding fresh (clean) air (air containing no odor component) may be provided in the inlet side gas processing means 19. With such a configuration, when generation of the odor component is stopped at the generation source, clean air is sent into the inlet side gas processing means 19 via the blower and adsorbed to the buffer adsorbent 18 The odorous components can be released and mixed in the air, and the buffer adsorbent 18 can be regenerated. And since the air mixed with the odor component passes through the inlet side gas processing means 19 and flows into the odor purification means 17, the odor component contained while the inflowed air passes through the inside of the odor purification means 17 Need to be decomposed and removed. For this reason, the blower is operated so that the flow velocity of the air sent into the odor purification means 17 does not exceed the upper limit value preset for each odor purification means 17.
In addition, when the time zone which generation | occurrence | production of an odor component stops by a generation source turns into a time zone (for example, night time) which activation of the photocatalyst by sunlight can not expect, light emission which emits visible light in the odor purification means 17 When the air mixed with the odor component is made to flow into the odor purification means 17, the photocatalyst is activated by the visible light generated by the light emitter.

Subsequently, an air purification device 64 according to a second embodiment of the present invention shown in FIG. 7 will be described.
Here, the air purification device 64 according to the second embodiment includes an odor component on the upstream side of the inlet side gas processing means 19 as compared with the air purification device 10 according to the first embodiment. An odor oxidation treatment means 65 for spraying hydrogen peroxide solution onto an exhaust gas containing an offensive odor discharged from an in-building sewage treatment facility, which is an example of air, to contact an odor component (malodor component) in exhaust gas with hydrogen peroxide It is characterized by being provided. For this reason, the same code | symbol is attached | subjected to the component same as the air purification apparatus 10, and only the odor oxidation treatment means 65 is demonstrated in detail.

The odor oxidation treatment means 65 is disposed on the upstream side of the inlet side gas treatment means 19, and moves the exhaust gas introduced from the lower side upward, and moves the hydrogen peroxide water from the plurality of nozzles 66 provided on the inner upper part Is sprayed to oxidize a part of the odorous components in the exhaust gas with hydrogen peroxide to reduce the content of the odorous components from the upper portion (the ceiling in FIG. 7) and to flow into the inlet side gas processing means 19 And an oxidizing agent tank 68 for storing hydrogen peroxide solution supplied to the nozzle 66 and recovering and storing the sprayed hydrogen peroxide solution in the oxidation process tank 67. Reference numeral 69 is a first pump for supplying the hydrogen peroxide solution in the oxidant tank 68 to the nozzle 66, and reference numeral 70 is a hydrogen peroxide solution collected at the bottom of the oxidation treatment tank 67 to recover the oxidant tank 68. It is the 2nd pump which returns to.

With such a configuration, the sewage treatment facility in the building has a large fluctuation in the amount of sewage treatment depending on the day of the week, and therefore, even if the fluctuation of the content of the odor component contained in the exhaust gas is large, the inlet side gas treatment means It is possible to perform the stable decomposition and removal of the odor component in response to the fluctuation of the content of the odor component quickly without increasing the size of one or both (the improvement of the processing ability) of either or both 19 and the odor purification means 17 Become. Then, when the reaction time of the odor component contained in the exhaust gas and hydrogen peroxide is controlled by adjusting the time for the exhaust gas to pass through the inside of the oxidation treatment tank 67, the content of the odor component contained in the exhaust gas is treated as the inlet side gas processing means It can be reduced to a level where adsorption removal by 19 can be achieved. As a result, the exhaust gas containing no odor component can be discharged from the air purification device 64 even in the absence of activation of the photocatalyst such as nighttime or rainy weather.

The hydrogen peroxide solution is stored in the lower part in the oxidation treatment tank, the exhaust gas is blown into the oxidation treatment tank, and the exhaust gas that has passed through the oxidation treatment tank (contacted with the hydrogen peroxide solution) is the upper part of the oxidation treatment tank Can be supplied to the inlet side gas processing means 19.
Also, ozone can be used to oxidize odorous components. When ozone is used, part of the odor component can be oxidized and removed by blowing ozone into a pipe that transports the exhaust gas to the inlet-side gas treatment means 19.

Furthermore, in the second embodiment, the odor oxidation treatment means 65 is provided on the upstream side of the inlet side gas treatment means 19, but the odor oxidation treatment means is provided in an intermediate portion between the inlet side gas treatment means 19 and the odor purification means 17. It can also be provided. In such a configuration, the odor component in the exhaust gas discharged from the inlet side gas processing means 19 (adsorption removal by the inlet side gas processing means 19 was not performed by adjusting the time for the exhaust gas to pass through the inside of the oxidation treatment tank The odor component can be decomposed and removed before flowing into the odor purification means 17. As a result, the exhaust gas that does not contain an odor component can be discharged from the air purification device even in the absence of activation of the photocatalyst such as nighttime or rainy weather.

Example 1
An air purifier having an odor purification means shown in FIG. 8A and an inlet-side gas treatment means provided on the upstream side of the odor purification means in communication with the air intake port of the odor purification means was produced.
Here, as shown in FIG. 8 (B), an air circulation path constituted by eight passes is provided in the odor purification means, and the zeolite-based processing unit is disposed in one to five passes on the upstream side. In the 6th to 8th passes on the downstream side, 224 sepiolite-based processing units were inserted. In addition, the zeolite-based processing unit and the sepiolite-based processing unit are each composed of six treated plate materials (90 mm long, 300 mm wide, and 5 mm thick) according to the configuration of FIG. A board consisting of 77% by mass of zeolite powder (maximum particle diameter of 0.2 mm) and 23% by mass of cement, the treated plate material of the sepiolite-based processing unit is 65% by mass of sepiolite powder (75 μm of maximum particle size) and 35% by mass of cement The boards consisting of each are immersed in a water repellent (methyltrimethoxysilane) and subjected to hydrophobization treatment, and then a photocatalytic layer of titanium dioxide is sprayed on one side (surface side irradiated with sunlight) by high-speed flame spraying. It manufactured by providing.
In addition, the inlet-side gas processing means has a storage tank with an inner diameter of 100 mm and a height of 500 mm (an air inlet provided with a flow control valve at the bottom, an air outlet communicating with the air inlet of the odor purification means at the top A ventilated shelf board is provided at an intermediate height position inside of (formed), and a 100 mm-thick columnar zeolite pellet with a diameter of 6 mm and a length of 6 to 15 mm is packed on the shelf board It produced by forming a layer.

The flow rate of the air containing VOC generated in the paint shop is adjusted to 2.0 m / sec by the flow control valve to start the supply to the air purifier (inlet side gas processing means), and the air inlet While measuring the VOC concentration (ppm) in the inflowing air, the VOC concentration in the air (inflowing into the air intake) flowing out from the air outlet for about 15 minutes after the supply of the air containing the VOC is started ppm was measured, and after 15 minutes, the VOC concentration in the air discharged from the air outlet was measured. A commercially available VOC monitor was used to measure the VOC concentration. The measurement results are shown in FIG.
It can be understood from FIG. 9 that even if the VOC concentration in the air flowing into the inlet-side gas treatment means fluctuates significantly, the VOC concentration in the air flowing into the odor purification means (air intake) can be reduced, and the odor purification means It can be seen that the concentration of VOCs in the air discharged from the air can be reduced to about 1/10 or less of the concentration of VOCs in the air flowing into the inlet-side gas treatment means.

(Comparative example 1)
While supplying the air containing VOC generated in a paint shop to the air intake port of the odor purification means of Example 1 while adjusting the flow velocity in the apparatus to 2.0 m / sec by the flow rate adjustment valve, The VOC concentration (ppm) in the inflowing air and the VOC concentration (ppm) in the air discharged from the odor purification means were each measured. The measurement results are shown in FIG. From FIG. 10, when the VOC concentration in the air supplied to the odor purification means fluctuates in the range of about 0 to 450 ppm, the maximum value of the VOC concentration in the air discharged from the odor purification means becomes about 200 ppm I understand.

From the above, it is confirmed that, by providing the inlet-side gas processing means, the fluctuation of the VOC concentration in the air flowing into the odor purification means can be made within the processing capacity range of the odor purification means (can be equalized) did it. As a result, even if the generation amount of VOC greatly fluctuates at the generation source, it is possible to continuously perform stable removal of the VOC, responding quickly to the fluctuation without aiming at upsizing of the odor purification means. That was confirmed.

(Example 2)
As shown in FIG. 11, an air purifier having an odor purification means and an inlet-side gas treatment means provided on the upstream side of the odor purification means in communication with the air intake port of the odor purification means was produced.
Here, the constitution of the odor purification means is the same as the odor purification means of the first embodiment.
Also, the inlet-side gas processing means is a storage tank having a length of 1500 mm, a width of 1000 mm, and a height of 1200 mm (an air inlet communicating with a flow control valve at the lower portion, and an air flow communicating with the air intake port of the odor purification means at the upper portion An air-permeable shelf board is provided at an intermediate height position inside the outlet (the outlet is formed), and a cylindrical zeolite pellet with a diameter of 6 mm and a length of 6 to 15 mm is filled 200 mm thick on the shelf board A zeolite pellet layer is formed, and a cylindrical zepolite pellet having a diameter of 2.5 mm and a length of 3 to 10 mm is packed 200 mm in thickness on the zeolite pellet layer to form a zepolite pellet layer. Made.

The exhaust gas generated at the waste incineration site flows into the inlet-side gas processing means while being supplied to the air purification device (inlet-side gas processing means) by adjusting the flow velocity in the device to 1.5 m / sec with the flow rate adjustment valve. The odor concentration of the inlet exhaust gas and the odor concentration of the outlet exhaust gas discharged from the air purifier (odor purification means) were measured using an odor sensor. The measurement results are shown in FIG. From FIG. 12, the odor concentration of the exhaust gas (inlet exhaust gas) generated at the waste incineration site is provided by providing the inlet side gas processing means and leveling the fluctuation of the odor concentration in the exhaust gas flowing into the odor purification means. It can be seen that a reduction in the odor concentration of the outlet exhaust gas can be achieved even if the.

In addition, Fig. 13 shows the results of odor component analysis using a gas chromatograph of the exhaust gas flowing into the odor purification means (air intake) and the exhaust gas discharged from the odor purification means (air outlet). The component reduction rates are shown in FIG. From FIG. 14, it can be understood that the odor components constituting the combined odor can be efficiently decomposed and removed by using the air purification device.
Furthermore, the odor component analysis result using the odor sensor of the exhaust gas which flows in into the odor purification means (air inlet) and the exhaust gas discharged from the odor purification means (air outlet) is shown in FIG. From FIG. 15, it is understood that the odor concentration of the aldehyde is reduced by more than 50% by the odor purification means, and the reduction of the odor concentration can be achieved also in a sense.

Although the present invention has been described above with reference to the embodiment, the present invention is not limited to the configuration described in the above-described embodiment, and the items described in the appended claims It also includes other embodiments and modifications that are considered within the scope.
For example, in the first embodiment, the treatment agent that adsorbs hydrogen sulfide (an example of the specified offensive odor substance) to deodorize is attached only to the treated plate material that constitutes a part of the treatment units, but all treatments The treatment agent may be attached to the treatment plate material constituting the unit.
In addition, although the air purification device according to the second embodiment is used to remove the offensive odor in the exhaust gas discharged from the in-building sewage treatment facility, the removal of the offensive odor in the exhaust gas that can be discharged from a general sewage treatment plant It can be applied to Furthermore, the inlet gas treatment means can also be arranged in the odor purification means.

10: Air purification device, 11: Air intake, 12: Air outlet, 13: Sunlight intake window, 14: Box, 15: Photocatalyst layer, 16: Treated plate, 16a: Substrate, 17: Odor purification Means, 18: Buffered adsorbent, 18a: storage tank, 19: inlet side gas processing means, 20: post-treatment adsorbent, 20a: storage tank, 21: outlet side gas processing means, 22: window attachment frame, 23: Bottom plate, 24: Side frame portion, 25: Transparent plate, 26: Window frame, 27: Locking device, 28: Side plate, 29: Inclined platform, 30, 31: Leg portion, 32: Side plate, 33: First partition Plate, 34: Second partition plate, 35: Air flow path, 36, 36a: Framework, 37: Peak, 38: Valley, 39, 39a, 40, 40a: Zeolite processing unit, 41, 42: Sepiolite Processing unit, 43: Zeolite pellet bed, 44: sepiolite Lett layer 45: silica gel pellet layer 46: zeolite pellet layer 47: sepiolite pellet layer 48: silica gel pellet layer 49: substrate 50: photocatalyst layer 51: second photocatalyst layer 52: treated plate material 53 A processing unit, 54: light emitter, 55: packing, 56: substrate, 57, 58: photocatalyst layer, 59: treated plate, 60, 61: frame, 62, 63: processing unit, 64: air purification device, 65: Odor oxidation treatment means, 66: nozzle, 67: oxidation treatment tank, 68: oxidant tank, 69: first pump, 70: second pump

Claims (13)

A case provided with an air inlet, an air outlet, and an openable and closable sunlight inlet window, and an air circulation path connecting the air inlet and the air outlet provided therein, and the air circulation The adsorbent is arranged side by side along the path and contains an adsorbent that adsorbs odorous components, and is activated by sunlight on the surface side to be irradiated with sunlight through the sunlight intake window and adsorbed onto the adsorbent. Odor purification means comprising a breathable treated plate provided with a photocatalyst layer for decomposing the odor component that has been
It is provided on the upstream side of the odor purification means in communication with the air intake port, temporarily adsorbs the odorous component contained in the air, and the content ratio fluctuation of the odorous component in the air flowing into the odor purification means the possess an inlet-side gas treatment means having to be out of the buffer adsorbent leveling,
A plurality of the treated plate members are attached to a short frame having a width insertable into the air flow passage, with the longitudinal direction of each treated plate member aligned with the air flow direction in the air flow passage, and the adjacent treated plate members A plurality of processing units formed in a corrugated plate shape having a peak portion and a valley portion are arranged in the flow direction of the air in the air circulation path. flow of air that has passed through the processing unit of the preceding stage is an air purification device, characterized in Rukoto the valleys and the ridges are arranged to be partially blocked by the processing unit of the subsequent stage. In the air purification device according to claim 1, before Kisho management unit, out capable aligned that it is installed an air purification device, wherein the air flow path in an open state the solar capture window . The air purification device according to claim 1 or 2 , wherein a part or all of the processing unit adsorbs a specific malodorous substance in the odor component to the processing plate material of the processing unit to deodorize the processing material. An air purifier characterized in that it adheres. The air purification apparatus according to any one of claims 1 to 3 , wherein the treatment unit comprises a zeolite-based treatment unit having the treated plate material containing zeolite as the adsorbent, and the sepiolite as the adsorbent. An air purification apparatus comprising: a sepiolite-based processing unit having a treated plate material; and a silica gel-based processing unit having the treated plate material containing silica gel as the adsorbent. The air purification device according to any one of claims 1 to 4 , wherein a second photocatalyst layer is formed on the back surface side of the treated plate material, and the second photocatalyst layer of the treated plate material is disposed in an inclined manner. An air purifier characterized in that the second photocatalyst layer is activated by light irradiation from a light emitter disposed in an enclosed space to decompose an odor component. The air purifier according to claim 5 , wherein a light transmission type dye-sensitized solar cell is attached to the sunlight intake window, and power generated by the light transmission type dye-sensitized solar cell is supplied to the light emitter. An air purifier characterized by The air purification device according to any one of claims 1 to 6 , wherein the surface and the back surface of the treated plate material are formed with irregularities generated with a length exceeding the particle size of the adsorbent. Air purification device. The air purification device according to any one of claims 1 to 7 , wherein the buffer adsorbent material is a combination of one or more of a zeolite pellet layer, a sepiolite pellet layer, a silica gel pellet layer, and an activated carbon pellet layer. An air purifier characterized by becoming. The air purifying device according to claim 8 , wherein the buffer adsorbent contains a treatment agent which adsorbs a specific offensive odorous substance in an odorous component to deodorize the material. The air purification device according to any one of claims 1 to 9 , wherein the air outlet of the box includes an odor component passing through the odor purification means and an intermediate product generated in the decomposition process of the odor component. What is claimed is: 1. An air purifier characterized in that an outlet side gas processing means is provided which is capable of taking in and out a post-treatment adsorbent for adsorbing hydrogen. 11. The air purification device according to claim 10 , wherein the post-treatment adsorbent comprises any one or a combination of one or more of a zeolite pellet layer, a sepiolite pellet layer, a silica gel pellet layer, and an activated carbon pellet layer. Purification device. The air purification device according to any one of claims 1 to 11 , further comprising an air blowing means for feeding clean air into the inlet side gas treatment means. The air purification device according to any one of claims 1 to 12 , wherein an odor component is contained on the upstream side of the inlet side gas treatment means or in the middle portion between the inlet side gas treatment means and the odor purification means. An air purification apparatus characterized by being provided with an odor oxidation treatment means for bringing hydrogen peroxide or ozone into contact with air.

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