WO2018104986A1

WO2018104986A1 - Deodorizing device

Info

Publication number: WO2018104986A1
Application number: PCT/JP2016/005087
Authority: WO
Inventors: 今村　啓志; 昭夫金森
Original assignee: カンケンテクノ株式会社
Priority date: 2016-12-08
Filing date: 2016-12-08
Publication date: 2018-06-14
Also published as: TWI723238B; JPWO2018104986A1; JP6545403B2; KR102011260B1; CN110035815A; KR20190084134A; TW201831843A

Abstract

This deodorizing device uses a granular or aggregated physical adsorbent having an inorganic porous material as the main body thereof as is; therefore, the amount of malodorous components adsorbed per unit volume of a malodorous component adsorbing structure (10) can be maximized. In addition, a heating means (46) directly heats an adsorbent (42); therefore, the temperature of the malodorous components adsorbed by the adsorbent (42) is increased without waste and the same are removed from the adsorbent (42). The adsorbent (42) can be regenerated with low energy consumption by extracting the malodorous components, which have been removed, from deodorizers (16a, 16b, 16c ...) with regeneration air (CA) extracted from a cooling circuit (30). Furthermore, a fixed deodorization column (18) is provided with at least three deodorizers (16a, 16b, 16c ...); therefore, three steps of deodorization of return air (CA), regeneration of the adsorbent (42), and cooling of the adsorbent (42) after regeneration can be implemented simultaneously as in conventional rotary types.

Description

Deodorization device

The present invention treats malodorous components composed of volatile organic compounds (VOC) such as formaldehyde, toluene, chlorofluorocarbons, benzene, chloromethane, and cyclohexane and other organic gases contained in the air to be treated. The present invention relates to a deodorizing apparatus for removing air from the target air.

As a device used for the above-mentioned deodorization, there has conventionally been a device described in the following Patent Document 1 (Japan, Japanese Patent Application Laid-Open No. 2002-102645). The prior art is an apparatus for concentrating organic gas, which is a malodorous component, and is configured as follows.
Similarly, a honeycomb-structured moisture exchange rotor is disposed upstream of the honeycomb-structured adsorption rotor, and air dehumidified by passing through the moisture-exchange rotor is sent to the adsorption zone and purge zone of the adsorption rotor. And the air which permeate | transmitted the purge zone is heated with a heater, The heated air is again sent to the desorption zone of an adsorption | suction rotor, and the organic gas adsorbed | sucked by the adsorption | suction rotor, ie, a malodorous component, is released.

According to this conventional technology, even if the humidity of the air to be treated (the air to be treated) is high, the humidity can be lowered before the air to be treated enters the adsorption rotor, and the adsorption odor component adsorption capacity of the adsorption rotor can be maintained high. I can do it.

JP 2002-102645 A

However, the above prior art has the following problems.
In other words, the conventional organic gas concentrating device is a so-called rotary device in which the adsorption rotor and the moisture exchange rotor always rotate. Even if the moisture exchange rotor is arranged and the adsorption odor component adsorption ability of the adsorption rotor can be maintained high. In addition, it is not possible to completely eliminate leaks generated from the gap between the adsorption rotor and the partition plate for partitioning the adsorption rotor into the adsorption zone and the purge zone. For this reason, no matter how much the malodorous component removal efficiency from the air to be treated is improved, the value is practically about 95%, which is a higher environmental standard than before (removal efficiency close to 100% without limit). ) Is difficult to meet recent customer needs.

In addition, the adsorption rotor used in such an apparatus is one in which an adsorbent such as synthetic zeolite is supported on a structure obtained by processing paper made of inorganic fibers such as ceramic fibers into a honeycomb shape. For this reason, when removing the malodorous components adsorbed by the adsorption rotor and regenerating the adsorbent, the air that has passed through the purge zone is heated with a heater to create hot air, and not only the adsorbent but also the honeycomb molding Since the material must be heated at the same time, a great deal of energy is required when the adsorbent is regenerated. That is, there is a problem that it is difficult to reduce the running cost.

Therefore, an object of the present invention is to provide a deodorizing apparatus that is excellent in the removal performance of malodorous components, particularly VOC and other organic malodorous components, and that can be stably operated for a long time while reducing running cost. It is in.

In order to achieve the above object, for example, as shown in FIGS. 1 to 3, the present invention has a deodorizing apparatus configured as follows.
A fixed deodorizing tower 18 having at least three or

more deodorizers

16 a, 16 b, 16 c... Whose internal space is partitioned into a first chamber 12 and a second chamber 14 via the malodorous component adsorption structure 10, and an upstream end is A return air supply passage 22 connected to the return air inlet 20 and having a downstream end connected to the first chamber 12 of each of the

deodorizers

16a, 16b, 16c..., And a processing fan 24 provided in the middle thereof. A return air supply flow path 22 for supplying the return air RA discharged from the deodorization target space DR to any one of the first chambers 12 of the

deodorizers

16a, 16b, 16c. A deodorizing air supply passage 28 connected to the second chamber 14 of each of the

deodorizers

16a, 16b, 16c... And having a downstream end connected to the deodorizing air outlet 26. , 16b, 16c ... evil Deodorized air supply passage 28 for supplying deodorized air DA deodorized through the component adsorption structure 10 to the deodorized air outlet 26, one end of which is the second chamber of each of the

deodorizers

16a, 16b, 16c. 14, the other end of which is a cooling circuit 30 connected to the first chamber 12 of each of the

deodorizers

16a, 16b, 16c..., And is cooled by a cooling device 32 provided in the middle of the flow path. The cooling circuit 30 that sucks the air by the cooling fan 34 and supplies the air to the first chamber 12 of each of the

deodorizers

16a, 16b, 16c. 30 is connected to a flow path between one end of the cooling device 32 and the cooling device 32, and a downstream end is connected to the second chamber 14 of each of the

deodorizers

16 a, 16 b, 16 c, and circulates through the cooling circuit 30. Each of the above deodorizers using part of the air as regenerated

air CA

6a, 16b, 16c... Regenerative air supply flow path 36 for feeding to any one of the second chambers 14 and the upstream end to the first chamber 12 of each of the

deodorizers

16a, 16b, 16c. A regeneration air discharge passage 40 connected to the regeneration exhaust port 38 at the downstream end is provided. The malodorous component adsorbing structure 10 is mainly composed of an inorganic porous material, and contains a granular or block adsorbent 42 that physically adsorbs malodorous components in the air, the adsorbent 42, and the above-described adsorbent 42. A breathable casing 44 that divides the internal space of the

deodorizers

16 a, 16 b, 16 c... Into two

chambers

12 and 14 through which gas can flow, and the inside of the adsorbent 42 accommodated in the casing 44. It is comprised with the heating means 46 which heats the said adsorbent 42 directly by being embedded in. Connected to the suction side of the cooling fan 34 in the cooling circuit 30 is an outside air introduction pipe 50 for supplying the amount of air extracted from the cooling circuit 30 as the regeneration air CA from outside air. The A decomposition device 52 for decomposing malodorous components concentrated in the regeneration air CA is attached to the regeneration air discharge channel 40.

The present invention has the following effects, for example.
As the adsorbent used for the malodorous component adsorbing structure, the physical adsorbent itself, mainly composed of an inorganic porous material, is used in the form of granules or lumps with a large specific surface area. It is possible to maximize the amount of malodorous component adsorption.
Further, since the malodorous component adsorbing structure does not contain an adhesive or resin packing, the heating temperature when regenerating the malodorous component adsorption force by heating the adsorbent can be raised to about 200 ° C to 300 ° C. Therefore, when the adsorbent regenerates the malodorous adsorption power of the adsorbent, the adsorbent is heated at a high temperature of approximately 200 ° C. to 300 ° C. so that the VOC adsorbed by the adsorbent and other organic malodorous components can be quickly removed from the adsorbent. Can be detached.
Furthermore, when regenerating the odor component adsorbing power of the adsorbent, the heating means embedded in the adsorbent accommodated in the casing directly heats only the adsorbent, so that it was adsorbed by the adsorbent. The malodorous component is heated up without waste and comes off from the adsorbent. For this reason, the adsorbent can be regenerated with a small amount of energy consumption by extruding the separated malodorous component from the deodorizer with the regeneration air extracted from the cooling circuit.
Since the fixed deodorization tower is equipped with at least three deodorizers, the conventional rotary type deodorization is performed in three steps: deodorization of return air, regeneration of the adsorbent, and cooling after regeneration of the adsorbent. It is not necessary to rotate the adsorption rotor or the like by using a large amount of power as in the apparatus, and it is possible to proceed at the same time only by switching operation such as turning on / off the air flow path and heating means.

In the present invention, the internal space of the

deodorizers

16a, 16b, 16c,... Is divided in the height direction by the malodorous component adsorption structure 10, and the first chamber is located above the malodorous component adsorption structure 10. 12 is formed, and the second chamber 14 is preferably formed on the lower side.
In this case, a gas that becomes high temperature in the deodorizer, such as regenerative air, enters from the lower side of the deodorizer to the upper side, and is relatively low in temperature as the return air cooling air to be deodorized. The gas to become enters from the upper side of the deodorizer and goes out to the lower side. For this reason, the flow of gas is smooth and efficient, leading to a reduction in running cost.

In the present invention, it is preferable to provide auxiliary heating means 36 a for heating the regeneration air CA on the upstream side of the regeneration air supply flow path 36.
In this case, it is possible to reduce the load on the heating means during the regeneration of the adsorbent and the energy cost of the total deodorizing apparatus.

It is a flowchart which shows the deodorizing apparatus of one Embodiment of this invention. It is explanatory drawing which shows an example of the fixed deodorizing tower in this invention. It is a flowchart which shows the state which switched the flow of the fluid in FIG.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. First, FIG. 1 is a flowchart showing a deodorizing apparatus according to an embodiment of the present invention. As shown in this figure, the deodorizing apparatus of the present invention supplies clean air by removing malodorous components such as VOC and other organic gases in the processing target air (return air RA) to the deodorizing target space DR. Is to do. As this deodorization target space DR, for example, the interior space of a printing factory or painting factory where VOC is used, or the indoor space of a hospital / care facility or restaurant where various odors are generated can be cited. .
The deodorizing apparatus is generally composed of a fixed deodorizing tower 18, a return air supply passage 22, a deodorization air supply passage 28, a cooling circuit 30, a regeneration air supply passage 36, and a regeneration air discharge passage 40. ing.

The fixed deodorization tower 18 is a device that deodorizes the return air RA returned from the deodorization target space DR via the return air supply flow path 22, and the internal space is the first chamber 12 via the malodorous component adsorption structure 10. And three

deodorizers

16a, 16b and 16c (in the illustrated embodiment) partitioned into the second chamber 14.

As shown in FIG. 2, the malodorous component adsorbing structure 10 is mainly composed of an inorganic porous material, and contains a granular or massive adsorbent 42 that physically adsorbs malodorous components in the air, and the adsorbent 42. In addition, a breathable casing 44 that divides the internal space of the

deodorizers

16a, 16b, and 16c into two

chambers

12 and 14 that allow gas to flow through each other, and the adsorption housed in the casing 44. It is comprised with the heating means 46 which heats the said adsorption material 42 directly by being embed | buried in the material 42. FIG.

Examples of the inorganic porous material forming the adsorbent 42 include zeolite, silica gel, activated alumina and the like. For example, the bad odor component adsorbing characteristics such as the organic solvent adsorbing characteristics and the handling properties are considered. Thus, zeolite is particularly suitable. The adsorbent 42 may be any material as long as it is mainly composed of an inorganic porous material, that is, it contains more than 50% by mass of the inorganic porous material with respect to the entire adsorbent 42. In addition to the material, it may contain other adsorbing materials such as activated carbon less than 50% by mass as necessary.
The breathable casing 44 is formed of a material that does not impair breathability and has excellent heat resistance and mechanical strength, such as a metal wire net, a heat resistant resin net, or a punching metal or an expanded metal. .
The heating means 46 is embedded in the adsorbent 42 accommodated in the casing 44 and can directly heat the adsorbent 42, more specifically, the adsorbent 42 itself and / or the adsorbent 42. Any mode can be used as long as the adsorbed malodorous component can be directly heated to release the malodorous component from the adsorbent 42. An electric heater, a microwave heating device, a high frequency induction heating device, or the like is preferable. Used for. In the case of the embodiment shown in FIG. 2, as the heating means 46, a sheathed heater in which a heating element 46a such as a nichrome wire is loaded in a heater pipe 46b made of an alumina tube or a quartz tube is meandered in the horizontal direction. The one embedded in a substantially flat shape is used. By using such a heating means 46, it becomes possible to raise the temperature of the entire malodorous component adsorption structure 10 quickly and easily.
Incidentally, when a microwave heating device is used as the heating means 46 and the casing 44 is made of metal, it is necessary to coat the surface with glass, heat-resistant resin, or the like.

In the illustrated embodiment, the fixed deodorization tower 18 includes three

deodorizers

16a, 16b, and 16c. However, the

deodorizers

16a, 16b, 16c,. The number should just be 3 or more, and can be suitably selected according to the quality, required amount, etc. of the target deodorizing air. For example, by setting the number of

deodorizers

16a, 16b, and 16c provided in the fixed deodorization tower 18 to three as in the illustrated embodiment, deodorization of return air RA, regeneration of the adsorbent 42, adsorbent as described later In addition to being able to proceed with the three steps of cooling after 42 regeneration at the same time, the size of the deodorizing device can be minimized and the space efficiency is excellent. On the other hand, by setting the number of

deodorizers

16a, 16b, 16c,. When the

deodorizers

16a, 16b, 16c,... Are switched, the occurrence of pressure fluctuations, hunting, and the like can be suppressed.

Further, as shown in FIG. 2, the

deodorizers

16a, 16b, 16c,... Constituting the fixed deodorization tower 18 have their internal spaces divided in the height direction by the malodorous component adsorption structure 10, and the upper side is the first. It is preferable to form the chamber 12 so that the lower side is the second chamber 14. By doing so, the gas that becomes high in the

deodorizers

16a, 16b, 16c... Like the regeneration air CA enters from the lower side of the

deodorizers

16a, 16b, 16c. A relatively low temperature gas such as the target return air RA or cooling air enters from the upper side of the VOC adsorber and escapes downward. For this reason, the flow of gas is smooth and efficient, leading to a reduction in running cost.

The return air supply flow path 22 is a flow path for supplying the return air RA returned from the deodorization target space DR to the fixed deodorization tower 18, and has a pipe line 22 </ b> A whose upstream end is connected to the return air inlet 20. The pipe 22A is formed of a metal material such as a stainless pipe, for example, and is branched into a plurality of branches (three in the illustrated embodiment) to form branch pipes 22A1, 22A2, 22A3, and the downstream ends of the pipes 22A. It connects to the 1st chamber 12 of

deodorizer

16a, 16b, 16c. In addition, a processing fan 24 for supplying the return air RA discharged from the deodorization target space DR toward the first chambers 12 of the

deodorizers

16a, 16b, and 16c is provided in the middle of the pipe line 22A. Accordingly, a pre-cooling device 22c is provided that cools the return air RA flowing through the pipe line 22A and lowers the dew point temperature.
Further,

valves

23a, 23b, 23c,... Are attached to the branch pipes 22A1, 22A2, 22A3... Where the pipe path 22A of the return air supply flow path 22 is branched, and the

valves

23a, 23b, 23c. Is opened / closed to switch the supply destination of the return air RA.

The deodorized air supply flow path 28 is a flow path for supplying the deodorized air DA that has passed through the malodorous component adsorption structure 10 of any of the

deodorizers

16a, 16b, and 16c to the deodorized air outlet 26. The downstream end has a conduit 28A connected to the deodorizing air outlet 26. The deodorized air DA that exits the deodorized air outlet 26 is supplied to the deodorized target space DR via the deodorized air pipe 54 and the deodorized air duct 56. The pipe 28A is formed of a metal material such as a stainless pipe, for example, and is branched into a plurality of (three in the illustrated embodiment) on the way to become branch pipes 28A1, 28A2, 28A3... It connects to the 2nd chamber 14 of each

deodorizer

16a, 16b, 16c. Further, a medium performance filter 58 is attached in the middle of the conduit 28A in order to remove dust and the like in the deodorized air DA.

Valves

29a, 29b, 29c,... Are attached to the branch pipes 28A1, 28A2, 28A3,... Where the pipe line 28A is branched, and the deodorizing air DR is operated by opening and closing the

valves

29a, 29b, 29c,. The supply source is switched.

The cooling circuit 30 operates the heating means 46 of the malodorous component adsorption structure 10 to regenerate the malodorous component adsorption capacity of the adsorbent 42, and the

deodorizers

16a, 16b, 16c without reducing the malodorous component adsorption capability. Is a circuit for cooling to a usable temperature, and has a pipe line 30A. This pipe line 30A is formed of a metal material such as a stainless steel pipe, for example, and one end of the pipe line 30A branches into branch pipes 30A1, 30A2, 30A3..., And the second chamber 14 of each

deodorizer

16a, 16b, 16c. Connected to. Further, the other end also branches to form branch pipes 30Aa, 30Ab, 30Ac,... And is connected to the first chamber 12 of each

deodorizer

16a, 16b, 16c,.
A cooling fan 34 for circulating the air in the cooling circuit 30 is attached to the pipe line 30A of the cooling circuit 30, and the air in the pipe line 30A is supplied to the pipe line 30A on the suction side of the cooling fan 34. A cooling device 32 for cooling is installed. For this reason, the air cooled by the cooling device 32 is sucked by the cooling fan 34. In addition, as the cooling device 32, what cools air with the cooling coil which made chiller water flow through, etc. can be mentioned, for example.

Valves

31a, 31b, 31c... Are attached to the branch pipes 30A1, 30A2, 30A3... Where the pipe line 30A is branched, and

valves

33a, 33b,. 33c ... are attached. The

deodorizers

16a, 16b, and 16c that are cooled by the cooling circuit 30 can be switched by opening and closing these

valves

31a, 31b, 31c, and 33a, 33b, 33c, and so on.

Also, the downstream end of the outside air introduction pipe 50 led out from the outside air inlet 48 is connected between the branch point in the suction-side pipe line 30A of the cooling fan 34 and the suction of the cooling fan 34. Here, as will be described later, the outside air introduction pipe 50 is a pipe for replenishing an amount of air extracted from the cooling circuit 30 as regeneration air CA from outside air, and is formed of a metal material such as a stainless steel pipe, for example. Is done. An auxiliary cooling device 50a for cooling the outside air is provided on the outside air introduction pipe 50 as necessary. Reference numeral 50b in the figure is a pre-filter, and reference numeral 50c is a medium-performance filter, which cooperate to remove dust and the like in the outside air introduced into the outside-air introduction pipe 50 in cooperation.

The regeneration air supply flow path 36 has an upstream end connected to a flow path between one end of the cooling circuit 30 and the cooling device 32, more specifically, a pipe connected to the upstream side of the cooling device 32 in the pipe line 30A. It has a path 36A. This pipe line 36A is formed of a metal material such as a stainless pipe, for example, and its downstream side branches to form branch pipes 36A1, 36A2, 36A3,... Connected to. Further,

valves

37a, 37b, 37c,... Are attached to the branch pipes 36A1, 36A2, 36A3,. Therefore, the regeneration air supply passage 36 can be switched to any one of the second chambers 14 of the

deodorizers

16a, 16b, 16c... As a part of the air circulating through the cooling circuit 30 as regeneration air CA. Can be sent.

Further, as shown in FIG. 1, auxiliary heating means 36a for heating the regeneration air CA is provided on the pipe line 36A of the regeneration air supply passage 36 as required. The auxiliary heating means 36a has its heat source set according to the energy situation at the site where the deodorizing apparatus is installed. For example, when saturated steam can be obtained at a low cost as a heat source at the installation site of the deodorizing apparatus, it is preferable to use a steam heater as the auxiliary heating means 36a as in the example of FIG. By doing so, the load of the heating means 46 at the time of regeneration of the adsorbent 42 and the energy cost of the total deodorizing apparatus can be reduced.

The regeneration air discharge channel 40 decomposes the malodorous components that have been concentrated and separated by the adsorbent 42 of the malodorous component adsorption structure 10 via the regeneration air CA supplied to the

deodorizers

16a, 16b, 16c. The pipe 40A is for exhausting into the outside air later, and has a duct 40A through which the regeneration air CA accompanied with a malodorous component flows. The pipe 40A is formed of a metal material such as a stainless steel pipe, for example, and its upstream side branches to form branch pipes 40A1, 40A2, 40A3, and the first chamber 12 of each

deodorizer

16a, 16b, 16c,. Connected to. Further,

valves

41a, 41b, 41c,... Are attached to the branch pipes 40A1, 40A2, 40A3,. The downstream end of the pipeline 40A is connected to the regeneration exhaust port 38, and a decomposition device 52 for decomposing malodorous components is attached between the downstream end and the branch point of the pipeline 40A. Here, the decomposition device 52 may be any decomposition method as long as it can decompose malodorous components into an odorless and harmless state. For example, a combustion method, an ozone oxidation method, a catalytic decomposition method, etc. , Plasma decomposition method, photocatalytic decomposition method and the like can be used.

Reference numeral 60 in the figure is a return air duct in which the deodorized air DA supplied to the deodorization target space DR is again charged with malodorous components and becomes return air RA, and reference numeral 62 indicates the return air duct 60. Is a return air pipe that feeds the return air RA sent to the return air inlet 20.

When supplying the deodorized air DA from which the bad odor has been removed to the deodorization target space DR using the deodorizing apparatus configured as described above, at least one of the

deodorizers

16a, 16b, 16c. DA is generated, at least one unit regenerates the internal adsorbent 42, and at least one unit cools down for preparation of deodorized air DA.
For example, in the deodorizing apparatus of the embodiment shown in FIGS. 1 and 2, the deodorizing air DA is generated by the lower deodorizer 16c, the adsorbent 42 is regenerated by the middle deodorizer 16b, and the upper deodorizer 16a. Cooling for preparation of deodorized air DA production is performed.

When the malodorous component adsorption capacity of the lower deodorizer 16c reaches its limit, it is necessary to switch the

deodorizers

16a, 16b, and 16c in order to obtain the desired deodorized air DA at the odor removal level. FIG. 3 shows the state after the switching. That is, for the deodorizing apparatus in the state of FIG. 1, the valve 23c of the return air supply flow path 22 is closed and the valve 23a is opened. Further, the valve 29c of the deodorized air supply passage 28 is closed and the valve 29a is opened. Furthermore, while the operation of the heating means 46 of the deodorizer 16b is stopped, the heating means 46 of the deodorizer 16c is operated, the valve 37b of the regeneration air supply passage 36, the valve 41b of the regeneration air discharge passage 40, and the cooling circuit. 30

valves

31a and 33a are closed, and the valve 37c of the regeneration air supply passage 36, the valve 41c of the regeneration air discharge passage 40, and the

valves

31b and 33b of the cooling circuit 30 are opened. By doing so, deodorized air DA is generated by the upper deodorizer 16a, cooling for preparation of the generation of deodorized air DA is performed by the middle deodorizer 16b, and the heating means 46 is provided by the lower deodorizer 16c. In operation, the adsorbent 42 is regenerated.
Hereinafter, such switching operation of each valve is sequentially performed, and the operation of the

deodorizers

16a, 16b, and 16c is sequentially switched.

In addition, in the deodorizing apparatus of this embodiment, although the case where the fixed deodorizing tower 18 was comprised by the three

deodorizers

16a, 16b, 16c was shown, the fixed deodorizing tower 18 is comprised of four or more deodorizers 16a, 16b. , 16c... By doing so, it is possible to increase the capacity of the deodorized air DA to be generated, and to reduce pressure fluctuations in the flow path and associated hunting at the time of switching various air flow paths.

10: bad odor component adsorption structure, 12: first chamber, 14: second chamber, 16a, 16b, 16c: deodorizer, 18: fixed deodorization tower, 20: return air inlet, 22: return air supply flow path, 24: processing fan, 26: deodorized air outlet, 28: deodorized air supply flow path, 30: cooling circuit, 32: cooling device, 34: cooling fan, 36: regeneration air supply flow path, 36a: auxiliary heating means, 38: regeneration exhaust port, 40: regeneration air discharge flow path, 42: adsorbent, 44: casing, 46: heating means, 48: outside air inlet, 50: outside air introduction pipe, 50a: auxiliary cooling device, 52: decomposition device, DA: Deodorized air, DR: Deodorized space, RA: Return air, CA: Regenerative air.

Claims

Fixed with at least three deodorizers (16a, 16b, 16c...) Whose internal space is partitioned into a first chamber (12) and a second chamber (14) through a malodorous component adsorption structure (10). Type deodorization tower (18),
The upstream end is connected to the return air inlet (20), and the downstream end is a return air supply flow path (22) connected to the first chamber (12) of each of the deodorizers (16a, 16b, 16c...). The return air (RA) discharged from the deodorization target space (DR) using the processing fan (24) provided in the middle of the first deodorizer (16a, 16b, 16c ...) in the first chamber ( 12) A return air supply flow path (22) that is switchably supplied to any one of
A deodorizing air supply flow path (28) having an upstream end connected to the second chamber (14) of each of the deodorizers (16a, 16b, 16c...) And a downstream end connected to the deodorizing air outlet (26). The deodorized air (DA) deodorized after passing through the malodorous component adsorption structure (10) of any of the deodorizers (16a, 16b, 16c...) Is sent to the deodorized air outlet (26). Deodorizing air supply flow path (28),
One end is connected to the second chamber (14) of each of the deodorizers (16a, 16b, 16c ...), and the other end is connected to the first chamber (12) of each of the deodorizers (16a, 16b, 16c ...). In the connected cooling circuit (30), the air cooled by the cooling device (32) provided in the middle of the flow path is sucked by the cooling fan (34), and the above deodorizers (16a, 16b) are sucked. , 16c ...) a cooling circuit (30) for switching and feeding to any one of the first chambers (12) of the first chamber (12).
The upstream end is connected to a flow path between one end of the cooling circuit (30) and the cooling device (32), and the downstream end is the second chamber of each deodorizer (16a, 16b, 16c,...). Any one of the second chambers (14) of the deodorizers (16a, 16b, 16c,...) Connected to the (14) and using a part of the air circulating through the cooling circuit (30) as regeneration air (CA). The regenerative air supply flow path (36) that feeds in a switchable manner, and the upstream end is connected to the first chamber (12) of each of the deodorizers (16a, 16b, 16c...), And the downstream end is regenerated. A deodorizing device comprising a regeneration air discharge channel (40) connected to an exhaust port (38),
The malodorous component adsorbing structure (10) is mainly composed of an inorganic porous material, and is composed of a granular or massive adsorbent (42) that physically adsorbs malodorous components in the air, and the adsorbent (42). A breathable casing (44) that accommodates and partitions the internal space of the deodorizer (16a, 16b, 16c, ...) into two chambers (12, 14) that allow gas to flow through each other, and the casing (44) comprises a heating means (46) for directly heating the adsorbent (42) by being embedded in the adsorbent (42) housed in the
In order to replenish from the outside air an amount of air extracted from the cooling circuit (30) as the regeneration air (CA) on the suction side of the cooling fan (34) in the cooling circuit (30). The outside air introduction pipe (50) is connected,
A decomposition device (52) for decomposing malodorous components concentrated in the regeneration air (CA) is attached to the regeneration air discharge channel (40).
A deodorizing device characterized by that.
In the deodorizing apparatus according to claim 1,
The deodorizer (16a, 16b, 16c...) Has its internal space divided in the height direction by the malodorous component adsorption structure (10), and is located above the malodorous component adsorption structure (10). A deodorizing apparatus, wherein one chamber (12) is formed and a second chamber (14) is formed on the lower side.
In the deodorizing apparatus according to claim 1 or 2,
The deodorizing apparatus, wherein an auxiliary heating means (36a) for heating the regeneration air (CA) is provided upstream of the regeneration air supply channel (36).