JP2021181844A - Deodorizing device - Google Patents

Abstract

To provide a deodorizing device that can efficiently deodorize the inside of a room while suppressing temperature changes on the inside of the room.SOLUTION: A deodorizing device 1 comprises a housing 10, a removing part 20 for adsorbing and removing a gas component included in air passing through the inside of the housing 10, a first ventilation port 2 for causing the inside of the housing 10 and the outdoors to communicate with each other, an air exhaust port 6 for introducing air to the inside of the housing 10 from the inside of a room, an air supply port 7 for supplying air to the inside of the room from the inside of the housing 10, and a first fan 11 and a second fan 12 serving as air blowing means for generating air currents. The first fan 11 and the second fan 12 are constituted so as to be capable of supplying air introduced to the inside of the housing 10 from the first ventilation port 2, to the inside of the room from the air supply port 7 after it passes through the removing part 20, and supplying air introduced to the inside of the housing 10 from the air exhaust port 6, to the inside of the room from the air supply port 7 after it passes through the removing part 20.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a deodorizing device.

Patent Document 1 describes a ventilation system. The ventilation system can deodorize the room by taking in the outside air into the room.

Japanese Unexamined Patent Publication No. 2016-444944

When the room is deodorized only by introducing outside air as in the ventilation system described in Patent Document 1, there is a concern that the energy efficiency of the air conditioner may decrease due to a large change in the temperature inside the room. In addition, there is concern about the discomfort of the occupants caused by the large change in the temperature inside the room.

The present disclosure is for solving the above-mentioned problems. An object of the present disclosure is to provide a deodorizing device capable of efficiently deodorizing a room while suppressing a temperature change in the room.

The deodorizing device according to the present disclosure includes a housing, a removing unit that adsorbs and removes gas components contained in air passing through the inside of the housing, a ventilation port that communicates the inside of the housing with the outside, and a housing from the room. It is provided with an exhaust port for taking air into the inside of the body, an air supply port for supplying air from the inside of the housing to the room, and a ventilation means for generating an air flow. The air blowing means supplies the air taken into the inside of the housing from the ventilation port to the room through the air supply port after passing through the removing part, and supplies the air taken into the inside of the housing from the exhaust port after passing through the removing part. It is configured to be able to be supplied indoors from the air vent.

According to the present disclosure, it is possible to provide a deodorizing device capable of efficiently deodorizing a room while suppressing a temperature change in the room.

It is a figure explaining the whole structure of the deodorizing apparatus of Embodiment 1. FIG. It is a figure explaining the whole structure of the deodorizing apparatus of Embodiment 1. FIG. It is a figure which shows the structural example of the removal part of Embodiment 1. FIG. It is a figure explaining the state of the 1st damper, the 2nd damper and the heater of Embodiment 1 at the time of execution of the indoor circulation operation and the regeneration operation. It is a control block diagram of the deodorizing apparatus of Embodiment 1. FIG. It is a figure explaining the 1st modification of the indoor circulation operation of Embodiment 1. FIG. It is a figure explaining the 1st modification of the regeneration operation of Embodiment 1. FIG. It is a figure explaining the 2nd modification of the indoor circulation operation of Embodiment 1. FIG. It is a figure explaining the 2nd modification of the regeneration operation of Embodiment 1. FIG.

Hereinafter, embodiments will be described with reference to the accompanying drawings. The same reference numerals in each figure indicate the same parts or corresponding parts. In the present disclosure, duplicate explanations will be simplified or omitted as appropriate. It should be noted that the present disclosure may include any combination of configurations that can be combined among the configurations described in the following embodiments.

Embodiment 1.
1 and 2 are views for explaining the overall configuration of the deodorizing device 1 of the first embodiment. The deodorizing device 1 is a device that deodorizes the room by taking in the air in the room and removing the gas component contained in the air. The deodorizing device 1 includes a housing 10 in which an air passage is formed, and a removing unit 20 arranged inside the housing 10. The removing unit 20 adsorbs and removes gas components contained in the air passing through the inside of the housing 10.

FIG. 1 shows the state of the deodorizing device 1 during the indoor circulation operation in which the gas component contained in the indoor air is removed and the air is circulated. FIG. 2 shows the state of the deodorizing device 1 during the regeneration operation in which the removal unit 20 is regenerated. The arrows in each figure indicate the air flow.

As shown in FIGS. 1 and 2, the deodorizing device 1 includes a first ventilation port 2. The first ventilation port 2 is an opening that communicates the inside of the housing 10 with the outside. As an example, the first ventilation port 2 and the inside of the housing 10 communicate with each other via the first duct 3.

The deodorizing device 1 may include a second ventilation port 4 separate from the first ventilation port 2 as an opening for communicating the inside of the housing 10 with the outside. As an example, the second ventilation port 4 and the inside of the housing 10 communicate with each other via the second duct 5.

The deodorizing device 1 includes an exhaust port 6 for taking in air from the room to the inside of the housing 10. The exhaust port 6 communicates the inside of the housing 10 with the room. As shown in FIGS. 1 and 2, during the regeneration operation and the indoor circulation operation in the present embodiment, the indoor air is discharged from the exhaust port 6 and taken into the inside of the housing 10.

Further, the deodorizing device 1 includes an air supply port 7 for supplying air from the inside of the housing 10 to the room. The air supply port 7 communicates the inside of the housing 10 with the room. As shown in FIG. 1, during the indoor circulation operation in the present embodiment, air is supplied to the room from the air supply port 7.

The deodorizing device 1 of the present embodiment includes a first fan 11 and a second fan 12 as an example of the blowing means for generating an air flow. The first fan 11 generates an air flow from the room toward the inside of the housing 10 through the exhaust port 6. The first fan 11 generates an air flow for discharging the air in the room. The second fan 12 generates an air flow from the outside to the inside of the housing 10 through the first ventilation port 2. The second fan 12 generates an air flow for taking in outdoor air.

As shown in FIG. 1, an air passage leading from the first ventilation port 2 to the air supply port 7 is formed inside the housing 10. In the present embodiment, this air passage is referred to as a "supply air air passage". Further, inside the housing 10, an air passage leading from the exhaust port 6 to the air supply port 7 is formed. In the present embodiment, this air passage is referred to as a "circulating air passage". The air supply air passage and the circulation air passage are configured so as to partially overlap each other. The air supply air passage and the circulation air passage are air passages configured to supply air into the room from the same air supply port 7.

As described above, the deodorizing device 1 includes a removing unit 20 that adsorbs and removes gas components contained in air. Examples of the gas component adsorbed and removed by the removing unit 20 include volatile organic compounds generated from building materials, fatty acids generated from humans, volatile organic compounds generated during metabolism of microorganisms, aldehyde groups or alcohol groups. Aromatic fatty acids and compounds such as amines, nitrogen oxides and sulfur oxides may be applicable.

In the present embodiment, the removing unit 20 is arranged at a position in the middle of the supply air passage and in the middle of the circulation air passage. In the present embodiment, the supply air passage and the circulation air passage are configured to intersect with each other in the removing portion 20. The removing unit 20 can adsorb and remove the gas component contained in the air flowing through the air supply air passage and passing through the removing unit 20. Further, the removing unit 20 can adsorb and remove the gas component contained in the air flowing through the circulation air passage and passing through the removing unit 20.

In the present embodiment, the first fan 11 and the second fan 12, which are examples of the blowing means, remove air taken into the inside of the housing 10 from the first ventilation port 2 as shown in FIG. It is possible to supply the air from the air supply port 7 to the room after passing through the air supply port 7 and to supply the air taken into the inside of the housing 10 from the exhaust port 6 to the room from the air supply port 7 after passing through the removing unit 20. Has been done. The air that has flowed through the air supply air passage and passed through the removal unit 20 and the air that has flowed through the circulation air passage and passed through the removal unit 20 are mixed and supplied to the room through the same air supply port 7.

According to the present embodiment, it is possible to deodorize the room while suppressing the temperature change in the room, as compared with the case where the room is deodorized only by introducing outside air. In addition, compared to the case where the indoor air is simply circulated through the air passage passing through the removal unit 20, the indoor air can be efficiently deodorized by supplying the outside air taken in from the first ventilation port 2 into the room. can. Further, since the outside air taken in from the first ventilation port 2 is supplied to the room after passing through the removing unit 20, it is possible to prevent the gas component contained in the outside air from entering the room. As shown above, according to the present embodiment, the deodorizing device 1 capable of efficiently deodorizing the room while suppressing the temperature change in the room can be obtained.

Further, FIG. 3 is a diagram showing a configuration example of the removal unit 20 of the first embodiment. As shown in FIG. 3, the removing portion 20 includes, for example, a removing portion housing 21 formed of a metal mesh body and a granular adsorbent 22 for adsorbing a gas component. The adsorbent 22 is filled inside the removing portion housing 21. As an example, the adsorbent 22 is supported in a state of being aligned by the support 23 inside the removing portion housing 21. The support 23 is formed from, for example, a metallic material.

The removing portion housing 21 formed from the metal mesh body can allow air to pass in each direction. The adsorbent 22 is formed in the form of particles using a catalyst that adsorbs a gas component such as manganese oxide, for example. The removing portion 20 shown in FIG. 3 is configured to allow ventilation in the gap between the granular adsorbents 22. The removing unit 20 shown in FIG. 3 is configured to allow air to pass in any direction. Specifically, the adsorbent 22 may be formed in a shape having a curved surface such as a spherical shape or a columnar shape. This makes it easy to create a gap between the adsorbents 22.

The removal portion housing 21 may be filled with a plurality of types of adsorbents 22. For example, an adsorbent 22 formed from a catalyst for removing nitrogen oxides and sulfur oxides is placed on the air supply air passage, and an adsorbent 22 formed from a catalyst for removing volatile organic compounds is placed on the circulating air passage. You may.

With the removal unit 20 configured as described above, the direction of the air flow passing through the removal unit 20 is not limited to a specific direction. By using the removal unit 20 configured as described above, the air supply air passage and the circulation air passage can be crossed in the removal unit 20. According to the present embodiment, the entire removing unit 20 can be effectively used for removing the gas component.

The removing portion 20 does not necessarily have to be arranged at a place where the supply air passage and the circulation air passage overlap. A plurality of removing portions 20 may be provided. For example, the first removing unit 20 may be provided in a place of the air supply air passage that does not overlap with the circulating air passage, and the second removing unit 20 may be provided in a place of the circulating air passage that does not overlap with the air supply air passage. .. Further, in the present disclosure, the configuration of the removing unit 20 included in the deodorizing device 1 is not necessarily limited to the configuration shown in FIG. For example, a conventionally known honeycomb structure, a pleated filter, or the like may be used as the removing unit 20.

Further, as shown in FIGS. 1 and 2, the deodorizing device 1 according to the present embodiment is configured to be able to switch the form of the air passage inside the housing 10. The deodorizing device 1 of the present embodiment includes a first damper 31 and a second damper 32 as an example of the air passage switching means for switching the form of the air passage inside the housing 10.

The first damper 31 is a damper for opening and closing the air supply air passage. The first damper 31 is arranged between the first ventilation port 2 and the air supply port 7. The second damper 32 is a damper for opening and closing the air passage leading from the exhaust port 6 to the second ventilation port 4. The second damper 32 is arranged between the exhaust port 6 and the second ventilation port 4.

The deodorizing device 1 may further include a heater 40 for heating the removing unit 20. As an example, the removing unit 20 is configured to release or decompose the gas component adsorbed and removed by raising the temperature. The heater 40 can regenerate the removal unit 20 by heating the removal unit 20.

FIG. 4 is a diagram illustrating a state of the first damper 31, the second damper 32, and the heater 40 of the first embodiment at the time of executing the indoor circulation operation and the regeneration operation. As shown in FIGS. 1 and 4, when the indoor circulation operation is executed, the first damper 31 is opened and the second damper 32 is closed. As a result, the air supply air passage that leads from the first ventilation port 2 to the air supply port 7 via the removal unit 20 and the circulation air passage that leads from the exhaust port 6 to the air supply port 7 via the removal unit 20 It is formed. By driving the first fan 11 and the second fan 12 in this state, the indoor circulation operation is executed as shown in FIG.

As shown in FIGS. 2 and 4, when the regeneration operation is executed, the first damper 31 is closed and the second damper 32 is opened. As a result, the air passage that leads from the exhaust port 6 to the second ventilation port 4 via the removal unit 20 and the air passage that leads from the first ventilation port 2 to the second ventilation port 4 via the removal unit 20 It is formed. By driving the first fan 11 and the second fan 12 in this state, the regeneration operation is executed. Further, when the regeneration operation is executed, the heater 40 heats the removing unit 20. As a result, the gas component adsorbed and removed by the removing unit 20 is released or decomposed and discharged from the second ventilation port 4.

FIG. 5 is a control block diagram of the deodorizing device 1 of the first embodiment. The operations of the first fan 11, the second fan 12, the first damper 31, the second damper 32, and the heater 40 are controlled by, for example, the control device 50. In this disclosure, the control device 50 is not shown in some drawings such as FIGS. 1 and 2.

The control device 50 is configured to be able to execute control for selectively executing the regeneration operation and the indoor circulation operation. For example, the control device 50 has the first fan 11 and the second fan 12 so that the regeneration operation is automatically performed when the amount of the gas component detected by the gas sensor provided in the housing 10 reaches the threshold value. , The first damper 31, the second damper 32 and the heater 40 may be controlled. Further, the control device 50 may selectively execute the regeneration operation and the indoor circulation operation according to the operation of a switch or the like (not shown) by the user. Further, the deodorizing device 1 may be interlocked with an air conditioner that harmonizes the air in the room. The control device 50 may control the operating temperature, air volume, and the like of the air conditioner according to the amount of air supply and exhaust to the room during the execution of the regeneration operation and the indoor circulation operation.

As shown above, in the deodorizing device 1 according to the present embodiment, the gas component contained in the indoor air is removed by the removing unit 20, and then the air is supplied from the air supply port 7 to the indoor circulation. Can perform driving. According to the indoor circulation operation, it is possible to deodorize the room while suppressing the temperature change in the room.

The deodorizing device 1 according to the present embodiment can execute a regeneration operation in which the gas component adsorbed and removed by the removing unit 20 is released or decomposed and then discharged to the outside to regenerate the removing unit 20. As a result, for example, the frequency of maintenance of the removing unit 20 can be reduced, and the labor of the user can be reduced. Further, by regenerating the removing unit 20, the frequency of replacement of the removing unit 20 can be reduced, and the product life of the deodorizing device 1 can be extended.

Further, the deodorizing device 1 according to the present embodiment includes a first damper 31 and a second damper 32 as an example of the air passage switching means for switching the form of the air passage inside the housing 10. This makes it possible to selectively form the air passage for indoor circulation operation and the air passage for regenerative operation inside the housing 10 without increasing the size of the housing 10. Further, it is not necessary to separately provide a member such as a duct for forming the air passage for indoor circulation operation and the air passage for regeneration operation.

Further, the deodorizing device 1 according to the present embodiment includes a heater 40 that heats the removing unit 20 during the regeneration operation. As a result, the removal unit 20 can be efficiently regenerated. The deodorizing device 1 according to the present disclosure does not have to include the heater 40. The method of regenerating the removing unit 20 is not limited to heating. For example, in the regeneration operation shown in FIG. 2, a large amount of air may be passed through the removing unit 20 to release or decompose the gas component adsorbed by the removing unit 20.

Next, various modifications of the deodorizing device 1 of the first embodiment will be described. FIG. 6 is a diagram illustrating a first modification of the indoor circulation operation of the first embodiment. As shown in FIG. 6, the deodorizing device 1 may further include a third damper 33 as an example of the air passage switching means for switching the form of the air passage inside the housing 10. The third damper 33 is a damper for opening and closing the air passage leading from the exhaust port 6 to the first ventilation port 2. The operation of the third damper 33 is controlled by, for example, the control device 50 described above. Further, in the modified example of FIG. 6, the second fan 12 is configured to be capable of reverse rotation. In the modified example of FIG. 6, the second fan 12 can generate an air flow from the inside of the housing 10 to the outside through the first ventilation port 2.

In the modified example of FIG. 6, the third damper 33 is opened and the second fan 12 rotates in the reverse direction. As a result, a part of the indoor air taken into the inside of the housing 10 from the exhaust port 6 is discharged from the first ventilation port 2. According to the modification of FIG. 6, the deodorization in the room can be performed more strongly. As described above, the deodorizing device 1 may be configured to be feasible to perform the indoor circulation operation shown in FIG. 6 in addition to the indoor circulation operation shown in FIG.

Further, as shown in FIG. 6, the adsorbent 22 may be filled only in a part of the inside of the removal portion housing 21. More specifically, the adsorbent 22 may not be arranged on the air passage leading from the exhaust port 6 to the first ventilation port 2. This makes it possible to reduce the pressure loss in the air passage leading from the exhaust port 6 to the first ventilation port 2.

Further, FIG. 7 is a diagram illustrating a first modification of the regeneration operation of the first embodiment. In the modified example of FIG. 7, the third damper 33 is closed and the second fan 12 is stopped. As in the modified example of FIG. 7, it is not necessary to take in the outdoor air during the regeneration operation. According to the modified example of FIG. 7, although the regeneration efficiency of the removing unit 20 is lower than that of the example of FIG. 2, there is no possibility that foreign matter such as dust contained in the outdoor air is clogged in the removing unit 20 during the regeneration operation. .. In this way, the deodorizing device 1 may be configured to be able to execute the regeneration operation shown in FIG. 7.

Further, FIG. 8 is a diagram illustrating a second modification of the indoor circulation operation of the first embodiment. FIG. 90 is a diagram illustrating a second modification of the regeneration operation of the first embodiment. As shown in FIGS. 8 and 9, the deodorizing device 1 may further include a fourth damper 34 as an example of the air passage switching means for switching the form of the air passage inside the housing 10. The operation of the fourth damper 34 is controlled by, for example, the above-mentioned control device 50. In the modified examples of FIGS. 8 and 9, the third damper 33 functions as a damper for opening and closing the air passage leading from the first ventilation port 2 to the second ventilation port 4. In the modified examples of FIGS. 8 and 9, the fourth damper 34 functions as a damper for opening and closing the air passage leading from the exhaust port 6 to the air supply port 7.

In the modification of FIG. 8, the third damper 33 is closed and the fourth damper 34 is opened. As a result, only the circulation air passage leading from the exhaust port 6 to the air supply port 7 is formed inside the housing 10. The indoor circulation operation of FIG. 8 has an advantage that the temperature change in the room is small, although the deodorizing efficiency is lower than that of the indoor circulation operation of FIG. The deodorizing device 1 may be configured to be feasible to perform the indoor circulation operation shown in FIG. 8 in addition to the indoor circulation operation shown in FIG.

In the modified example of FIG. 9, the third damper 33 is opened and the fourth damper 34 is closed. As a result, only the air passage leading from the first ventilation port 2 to the second ventilation port 4 is formed inside the housing 10. The regeneration operation of FIG. 9 has an advantage that the temperature change in the room is smaller than that of the regeneration operation of FIG. The deodorizing device 1 may be configured to be capable of performing the regeneration operation shown in FIG.

1 Deodorizer, 2 1st ventilation port, 3 1st duct, 4 2nd ventilation port, 5 2nd duct, 6 exhaust port, 7 air supply port, 10 housing, 11 1st fan, 12 2nd fan, 20 Remover, 21 Remover housing, 22 Adsorbent, 23 Support, 31 First damper, 32 Second damper, 33 Third damper, 34 Fourth damper, 40 Heater, 50 Control device

Claims (4)

With the housing
A removing unit that adsorbs and removes gas components contained in the air passing through the inside of the housing,
A ventilation port that communicates the inside of the housing with the outside,
An exhaust port for taking in air from the room to the inside of the housing,
An air supply port for supplying air from the inside of the housing to the room,
Blower means to generate airflow and
Equipped with
The air blowing means supplies the air taken into the inside of the housing from the ventilation port to the room through the air supply port after passing through the removing portion, and takes in the air taken into the inside of the housing from the exhaust port. A deodorizing device characterized in that air can be supplied from the air supply port to the room after passing through the removing portion. The removal part
The removal part housing formed from the metal mesh body and
A granular adsorbent that is filled inside the removal unit housing and adsorbs gas components,
The deodorizing device according to claim 1, further comprising. The air passage switching means for switching the form of the air passage inside the housing is provided.
The air blowing means and the air passage switching means have an indoor circulation operation in which the gas component contained in the air in the room is removed by the removing unit and then the air is supplied from the air supply port to the room, and the removing unit. The first or second aspect of the present invention, wherein the gas component adsorbed and removed by the method is discharged or decomposed and then discharged to the outside to regenerate the removed portion, and the regeneration operation is feasible. Deodorizing device. A heater for heating the removed portion is provided.
The removing unit releases or decomposes the gas component adsorbed and removed by raising the temperature.
The deodorizing device according to claim 3, wherein the heater heats the removing portion when the regeneration operation is executed.

Images