JP2002078786A - Deodorizing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the weight of a deodorizing device having an adsorbable and desorbable adsorber. SOLUTION: The deodorizing device 10 has an adsorption rotor 20 which is capable of adsorbing harmful components from gas to be treated and desorbing the adsorbed harmful components and a recycling treatment section 13 which desorbs the harmful components adsorbed by the adsorption rotor 20. The recycling treatment section 13 exists in proximity to the adsorption rotor 20 and supports the adsorption rotor 20. Since the recycling treatment section 13 acts commonly as the supporting body of the adsorption rotor 20, the need of members for supporting the adsorption rotor 20 may be eliminated, the number of members decreased and the weight over the entire part of the deodorizing device 10 reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a deodorizing device, and more particularly to a deodorizing device provided with an adsorbent capable of absorbing and desorbing harmful components.

[0002]

2. Description of the Related Art In order to detoxify a gas containing a harmful component such as an odor component, a deodorizing device may be provided. Main odor components include ammonia, acetaldehyde, trimethylamine, methyl mercaptan and the like, and other main harmful components include carbon monoxide, formaldehyde and the like.

[0003] Deodorizing apparatuses using an adsorbent include those using an adsorbent capable of only adsorbing the above harmful components (hereinafter referred to as "adsorbents") and those adsorbable and capable of adsorbing. Adsorbent that can be desorbed later (hereinafter referred to as "adsorption and desorption material")
There is one that uses. A deodorizing device using an adsorbent can recover the deodorizing ability by replacing the adsorbent. On the other hand, the deodorizing apparatus using the adsorbing / desorbing material performs desorption processing such as flowing a desorption processing gas to the adsorbing / desorbing material in the desorption processing means when the deodorizing ability of the adsorbing / desorbing material decreases due to adsorption of harmful components. Thereby, the deodorizing ability of the adsorption / desorption material can be restored.

In a large-sized deodorizing apparatus, a large gas processing capacity is required, so that the size of the adsorbent becomes huge. For this reason, in a large-sized deodorizer using an adsorbent, it is difficult to dispose of the adsorbent after replacement. Further, since the adsorbent cannot be reused, the price of the adsorbent also becomes expensive. For this reason, many large-sized deodorizing apparatuses use an adsorption / desorption material.

[0005]

When the adsorption / desorption material is desorbed, it is necessary to transfer the gas containing the desorbed harmful components from the adsorption / desorption material to a decomposition treatment device or the like.
At that time, in order to prevent the desorbed harmful components from leaking outside, it is necessary to seal the desorption processing means.

Further, as a method of the desorption treatment, a heated desorption gas is often passed through the adsorption / desorption material. At this time, the desorption processing means needs heat insulation and heat resistance measures.

For the reasons described above, the weight of the desorption processing means is increased. For this reason, the weight of the whole deodorizing device becomes heavy, and the installation place is restricted. Also, when the desorption processing means is installed at a structurally high position in the deodorization device,
Since a structure for supporting the desorption processing means is separately required, the weight is further increased. And the member which comprises a deodorizing device increases so that a weight increases, and a deodorizing device becomes expensive.

An object of the present invention is to reduce the weight of a deodorizing device provided with an adsorbent that can be adsorbed and desorbed.

[0009]

According to a first aspect of the present invention, there is provided a deodorizing apparatus for treating a harmful component from a gas containing a harmful component, wherein the harmful component is adsorbable from the gas to be treated. An adsorbent capable of desorbing the harmful component thus obtained, and desorption processing means for desorbing the harmful component adsorbed by the adsorbent. The desorption processing means is provided close to the adsorbent and supports the adsorbent.

Here, the desorption means also serves as a support for the adsorbent. This eliminates the need for a separate member for supporting the adsorbent, thereby reducing the number of members and reducing the weight of the entire deodorizing device.

When the desorption processing means is positioned below the adsorbent so as to easily support the adsorbent, the number of support members between the desorption processing means and the grounding surface of the deodorizing device is reduced, and the deodorization is performed. This is desirable because the weight of the entire apparatus is further reduced.

A deodorizing device according to a second aspect is the deodorizing device according to the first aspect, wherein the adsorbent is a rotary adsorber rotatable about a rotation axis. The rotary adsorbent is detachably supported by the desorption processing means and is capable of adsorbing harmful components from the gas to be processed flowing in the rotation axis direction.

Here, a rotating adsorbent is used as the adsorbent. The rotary adsorber can rotate with respect to the desorption processing means. Therefore, when the rotary adsorbent is gradually rotated during the deodorizing process, a desorption process of desorbing harmful components adsorbed on the rotary adsorbent can be performed in a portion of the rotary adsorbent that is close to the desorption processing means. In addition, the adsorption of harmful components and the desorption treatment of the rotating adsorbent can be performed simultaneously.

According to a third aspect of the present invention, there is provided the deodorizing apparatus according to the second aspect, wherein the desorbing processing means comprises: a regenerating unit which is in proximity to both surfaces of a lower part of the rotary adsorber; A blower for generating a gas flow of the regeneration gas. The regenerating unit causes the regenerating gas to flow through the rotating adsorber by the blower unit, and desorbs the harmful components adsorbed by the rotating adsorber.

Here, as a method of the desorption treatment, a regeneration gas is circulated through a rotary adsorbent. The regeneration unit covers a part of the rotary adsorbent, and by flowing the regeneration gas through a part of the rotary adsorber, it is possible to discharge the harmful components adsorbed by the rotary adsorber in the regeneration gas. it can.

A deodorizing device according to a fourth aspect is the deodorizing device according to any one of the first to third aspects, wherein the harmful component desorbed after being adsorbed by the adsorbent is detoxified by a catalytic treatment. Further provided is a decomposition processing means.

Here, the apparatus further includes a decomposition treatment means having a catalyst, and the harmful components desorbed from the adsorbent are decomposed by the decomposition treatment means. Therefore, there is no need to directly discharge the harmful component to the outside or to transfer the harmful component to a separately provided decomposition treatment means.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] <Overall Configuration> A deodorizing apparatus 10 according to a first embodiment of the present invention.
Is shown in FIG.

The deodorizing device 10 adsorbs harmful components from the gas to be treated containing harmful components such as odor components, desorbs the adsorbed harmful components by a heated regeneration gas, and further desorbs the desorbed harmful components. Is a device for disassembling.

The deodorizing apparatus 10 includes an adsorption processing section 12, a regeneration processing section 13, and a decomposition processing section 14. <Structure of adsorption processing unit> The adsorption processing unit 12 adsorbs harmful components from the gas to be processed. The adsorption processing unit 12
The suction rotor 20 includes a rotation drive unit 21 for rotating the suction rotor 20, and a blower 22 for flowing the gas to be processed through the suction rotor 20.

The suction rotor 20 is a circular member in which a number of honeycomb holes are formed in parallel with the rotation axis. The inner wall surface of the honeycomb hole has an adsorption / desorption material such as hydrophobic zeolite or activated carbon, and can adsorb and desorb harmful components of the gas to be treated. The adsorption / desorption material adsorbs harmful components at normal temperature, and desorbs harmful components by evaporating the harmful components at high temperature. The suction rotor 20 is rotatably and detachably supported on a rotating shaft 20a by a rotor support 93 (described later). Suction rotor 20
A toothed belt is wrapped around the.

The rotation drive section 21 includes a motor 25 and a toothed pulley 26 mounted on a rotation shaft of the motor 25. The toothed pulley 26 and the toothed belt of the suction rotor 20 are connected by a toothed transmission belt 28 that meshes with both. As a result, the rotation of the motor 25 is transmitted to the suction rotor 20 via the toothed transmission belt 28, so that the suction rotor 20 rotates. The toothed transmission belt 28 is tensioned by a tension device 30 and serves to effectively transmit the rotation of the motor 25 to the suction rotor 20. Tension device 30
Is an arm member having a tension roller 30a at the tip.

The blower 22 has a blower fan 22a driven by a motor 22b. Blow fan 22
“a” causes the flow of the gas to be processed in the axial direction of the adsorption rotor 20 via the front side of the adsorption rotor 20 in FIG.
Thereafter, the gas to be treated, which has passed through the adsorption rotor 20 to remove harmful components by adsorption, is sucked into the blower fan 22a,
The air is discharged to the outside of the deodorizing device 10 from an exhaust port 22c provided at an upper portion of the deodorizing device 10.

<Structure of Reproduction Processing Unit> The reproduction processing unit 13
The adsorption capability of the adsorption rotor 20 is restored by flowing a high-temperature regeneration gas through the adsorption rotor 20 and desorbing harmful components adsorbed on the adsorption / desorption material of the adsorption rotor 20. As shown in FIG. 2, the regeneration processing unit 13 is directly mounted on the ground plane G, and includes a pair of regeneration units 23 a and 23 b disposed close to the lower part of the suction rotor 20.
A pair of cooling units 24a, 24b arranged adjacent to the pair of reproducing units 23a, 23b;
And a communication pipe 91 for sending the regeneration gas to 3a. The regenerating part 23a and the cooling part 24a and the regenerating part 23b and the cooling part 24b are adjacent to each other and are integrally formed. Further, a blower 31 and a blower pipe 90 for sending the air from the blower 31 to the regeneration processor 13 are provided along with the regeneration processor 13. Also, the reproduction processing unit 1
3 has a rotor supporting portion 93 (93a, 93b), and rotatably and detachably supports the suction rotor 20.

The blowing unit 31 supplies the regeneration gas to the regeneration processing unit 1.
3 and for distributing to the decomposition processing unit 14.
The blower 31 is connected to the cooler 24 a by a blower pipe 90. The regeneration gas is supplied from the blower 31 to the blower pipe 9.
After passing through 0, it is sent to the cooling unit 24a.

The cooling units 24a, 24b are provided with a regenerating unit 23a,
At 23b, the adsorption rotor 20 heated by the high-temperature regeneration gas is cooled to restore the adsorption performance of the adsorption / desorption material. The cooling units 24a and 24b are arranged close to both surfaces of the suction rotor 20 with the suction rotor 20 interposed therebetween.
The cooling units 24a and 24b are arranged adjacent to the regenerating units 23a and 23b, respectively, on the downstream side in the rotation direction of the suction rotor 20 indicated by the arrow R in FIG. Blower 31
Thus, the regeneration gas sent from the blower pipe 90 is
The adsorbing rotor 20 flows from the cooling unit 24a to
Flowed toward b.

The regenerating sections 23a and 23b heat the honeycomb holes of the adsorbing rotor 20 by flowing a high-temperature regenerating gas from the regenerating section 23a toward the regenerating section 23b, and vaporize harmful components adsorbed on the adsorbing / desorbing material. It is made to attach and detach. The regeneration gas that has passed from the cooling unit 24b through the communication pipe 91 is heated to a high temperature by the regeneration unit heater 94 of the regeneration unit 23a. Thereafter, the high-temperature regeneration gas containing harmful components flowing from the regeneration unit 23 through the adsorption rotor 20 passes through the regeneration unit 23b, and is sent to the decomposition processing unit 1 by the blower pipe 92 (described later).
4

<Structure of Decomposition Processing Unit> The decomposition processing unit 14
The harmful component desorbed from the adsorption rotor 20 in the regeneration processing unit 13 is decomposed by a built-in catalyst. The decomposing unit 14 further heats the regenerating gas from the regenerating unit 23b of the regenerating unit 13 via the ventilation pipe 92, and decomposes harmful components contained in the regenerating gas with a catalyst. The regeneration gas that has become almost harmless by decomposing harmful components is exhaust gas 3
Exhausted from 2.

<Operation of Deodorizing Apparatus> [Deodorizing Processing] At the time of the deodorizing processing, the gas to be treated is passed through the adsorption rotor 20 by the blower 22 while the adsorption rotor 20 is kept stationary, for example. Thereby, the adsorption / desorption material of the adsorption rotor 20 adsorbs harmful components. The gas to be treated from which harmful components have been removed is exhausted from the exhaust port 22c by the blower fan 22a.

As the cumulative amount of the gas to be treated increases, harmful components are adsorbed on the adsorbing / desorbing material of the adsorbing rotor 20, so that the performance of the deodorizing device 10 gradually deteriorates. For this reason, for example, the operation of the regeneration process is performed once a day.

[Regeneration Process] At the time of the regeneration process, first, the blower 31 is operated and the disassembly processor 14 is operated. On the other hand, the blower 22 is stopped. Next, the suction rotor 20 is rotated in order to regenerate the entire suction rotor 20. By operating the blowing unit 31, the regeneration gas is
It circulates as indicated by the arrow in FIG. The regeneration gas is
First, the cooling unit 24a is supplied from the blowing unit 31 through the blowing pipe 90.
Sent to Thereafter, the regeneration gas flows through the adsorption rotor 20 from the cooling unit 24a to cool the adsorption rotor 20, and is sent to the cooling unit 24b. Subsequently, the regeneration gas is sent to the regeneration unit 23a via the communication pipe 91. Further, the regeneration gas is heated to, for example, 150 ° C. to 200 ° C. by the regeneration unit heater 94 inside the regeneration unit 23a. Thereafter, the regeneration gas flows from the regeneration unit 23a through the adsorption rotor 20 and is sent to the regeneration unit 23b. As a result, the harmful components adsorbed on the adsorption / desorption material of the adsorption rotor 20 are vaporized and desorbed from the adsorption / desorption material by the heated regeneration gas and are included in the regeneration gas. The regeneration gas is sent from the regeneration unit 23b to the decomposition processing unit 14 via the ventilation pipe 92. Since the harmful components contained in the regeneration gas are decomposed by the catalyst in the decomposition processing section 14, the regeneration gas becomes almost harmless. Thereafter, the regeneration gas is discharged from the deodorizing device 10 through the exhaust pipe 32.

As a result, the harmful components adsorbed on the adsorption rotor 20 are decomposed by the decomposing section 14 and are removed from the adsorption rotor 20. The adsorption rotor 20 heated by the regeneration units 23a and 23b is cooled by the cooling units 24a and 24b and returns to normal temperature, and the ability to adsorb harmful components is restored.

<Features of Deodorizing Apparatus According to the Present Embodiment> (1) In the deodorizing apparatus 10 according to the present embodiment, the suction rotor 20
The rotation support shaft 93 of the reproduction processing unit 13 is rotatably and detachably supported by the rotor support unit 93.
Have a function of supporting the weight of the suction rotor 20.
This eliminates the need to separately provide a support member for the suction rotor 20 and reduces the number of members. In addition, the regeneration processing unit 13 is a heavy material, and a support member is required if it is provided above the deodorizing device 10. However, since the regeneration processing unit 13 is installed on the ground plane G, the support member is unnecessary, and the number of members is small. Has become. Thereby, the overall weight of the deodorizing device 10 is reduced.

The suction rotor 20 can rotate with respect to the regeneration processing unit 13. Thereby, the suction rotor 20
By gradually rotating, the regeneration process can be performed in the portion of the suction rotor 20 that is in contact with the regeneration processing unit 13.

(2) The deodorizing apparatus 10 of the present embodiment includes a decomposing unit 14 for catalyzing the harmful components desorbed by the regenerating units 23a and 23b after being adsorbed by the adsorbing rotor 20 to detoxify the harmful components. Have.

For this reason, there is no need to discharge the harmful components desorbed from the adsorption rotor 20 to the outside air, or to provide a separate decomposition apparatus for sending a regeneration gas. <Modifications of the present embodiment> (A) In the deodorizing apparatus 10 of the present embodiment, the adsorption rotor 20 is kept stationary during the deodorizing process. However, the regeneration process may be performed simultaneously with the deodorization process by rotating the adsorption rotor 20 during the regeneration process.

(B) The deodorizing apparatus 10 of this embodiment is assumed to start the regeneration process manually. However, by providing a timer or the like, the deodorization device 10 can automatically start the regeneration process at a specific time. Good.

[Second Embodiment] FIG. 3 shows a front view of a second embodiment of the present invention. The deodorizing device 11 includes an adsorption processing unit 12
, A reproduction processing unit 13 and a decomposition processing unit 14. In the deodorizing apparatus 11, the regeneration processing unit 13 includes a rectangular support member 17, and the support member 17 supports the rotating shaft 20a of the suction rotor 20. Compared with the first embodiment, the number of members is increased due to the necessity of the support member 17, but the members constituting the reproducing units 23a and 23b and the cooling units 24a and 24b are lightened.

The description and operation of each part are the same as in the first embodiment, and will not be described.

[0040]

In the deodorizing apparatus according to the first aspect, since the desorption processing means also serves as a support for the adsorbent, a separate member for supporting the adsorbent is not required, and the weight of the entire deodorizing apparatus can be reduced. it can.

In the deodorizing device according to the second aspect, a rotary adsorbent is used as the adsorbent. The rotary adsorber can rotate with respect to the desorption processing means. If the rotating adsorbent is gradually rotated during the deodorizing treatment, the desorption treatment for desorbing the harmful components adsorbed on the rotating adsorbing body can be performed in a portion of the rotating adsorbent that is close to the desorption processing means, so that the harmful components are removed. Adsorption and desorption of the rotary adsorber can be performed simultaneously.

In the deodorizing apparatus according to the third aspect, as a method of the desorption treatment, the regeneration gas is circulated through the rotary adsorber. The regeneration unit covers a part of the rotary adsorbent, and by flowing the regeneration gas through a part of the rotary adsorber, it is possible to discharge the harmful components adsorbed by the rotary adsorber in the regeneration gas. it can.

In the deodorizing apparatus according to the fourth aspect, since the deodorizing device is further provided, there is no need to directly discharge harmful components to the outside or to transfer the harmful component to a separately provided decomposing device.

[Brief description of the drawings]

FIG. 1 is a perspective view of a deodorizing device according to a first embodiment.

FIG. 2 is a perspective view of the deodorizing device according to the first embodiment when a suction rotor at a lower portion is removed. The flow arrows of the regeneration gas are shown.

FIG. 3 is a front view of a deodorizing device according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10, 11 Deodorizer 12 Adsorption processing part 13 Regeneration processing part 14 Decomposition processing part 17 Support member 20 Suction rotor 20a Rotating shaft 21 Rotation drive part 22 Blower 23a, 23b Regeneration part 24a, 24b Cooling part 31 Blower part 90 Blower pipe 91 Communication pipe 92 Blowing pipe 93 Rotor support 94 Regeneration section heater

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Hiroyuki Takimoto 1304 Kanaokacho, Sakai-shi, Osaka Daikin Industries Inside Kanaoka Plant of Sakai Seisakusho Co., Ltd. (72) Toshiyuki Kato 1304 Kanaokacho, Sakai-shi, Osaka Daikin Industries, Ltd. F-term in Sakai Works Kanaoka Factory (reference) 4C080 AA05 BB02 CC01 HH05 JJ03 KK08 MM04 MM05 QQ11 QQ17 4D012 CA09 CC02 CC05 CD01 CE01 CF03 CH05

Claims (4)

[Claims] 1. A deodorizing apparatus (10) for treating a harmful component from a gas to be treated containing the harmful component, wherein the harmful component can be adsorbed from the gas to be treated and the adsorbed harmful component can be desorbed. An adsorbent (20); and a desorption processing means (13) for desorbing the harmful component adsorbed by the adsorbent (20). The desorption processing means (13) comprises: A deodorizing device (10), which is provided adjacent to the adsorbent and supports the adsorbent (20). 2. The adsorbent (20) has a rotating shaft (20a).
A rotating adsorber (20) rotatable around a center thereof, wherein the rotating adsorber (20) is provided with the desorption processing means (13).
The harmful component can be adsorbed from the gas to be treated flowing in the direction of the rotating shaft (20a).
Deodorizing device (10) according to claim 1. 3. The desorption processing means (13) comprises: a regenerating unit (23a, 23b) adjacent to both surfaces of a lower part of the rotary adsorber (20); Blower for generating (31)
And the reproducing unit (23a, 23b) includes the blowing unit (31).
The deodorizer (10) according to claim 2, wherein the regeneration gas is caused to flow through the rotary adsorbent (20) to desorb the harmful components adsorbed on the rotary adsorbent (20). 4. The method according to claim 1, further comprising a decomposition treatment means (14) for catalytically treating the harmful component desorbed after being adsorbed by the adsorbent (20) to render it harmless. Deodorizer (10).