JP2006242482A - Voc removing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a VOC removing system capable of independently removing VOC in the air of a plurality of divisions formed in a house for every division on the basis of a measuring result, by independently measuring the VOC concentration in the air of the plurality of divisions formed in the house for every division. <P>SOLUTION: This VOC removing system has a VOC removing device for exhausting the VOC outdoors by recovering the VOC from indoor air and returning the indoor air of removing the VOC to the inside of the house, a VOC sensor arranged in the VOC removing device, and a connecting device for connecting optional one or more in the plurality of divisions in the house to the VOC removing device. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a VOC removal system.

A VOC removal device that collects volatile organic compounds (hereinafter referred to as VOC) in the air from the indoor air and returns the indoor air from which VOC has been removed to the indoor, and a plurality of indoor compartments are connected to the VOC removal device. Patent Document 1 discloses a VOC removal system including a connection device.
JP 2002-13775 A

The VOC concentration in the air generally varies from compartment to compartment. Therefore, when constructing a VOC removal system that removes VOCs in indoor air, the VOC concentration in the air in a plurality of compartments formed indoors can be measured independently for each compartment. If the system can remove VOC in the air independently for each section, the running cost can be reduced by optimizing the operation flow such as removing VOC only in the section having a high VOC concentration. In the system of Patent Literature 1, a plurality of indoor sections are collectively connected to the VOC removal device, and thus the above-described cost reduction cannot be realized.
The present invention has been made in view of the above problems, and the air VOC concentrations in a plurality of compartments formed indoors can be measured independently for each compartment, and the air VOCs in a plurality of compartments formed indoors can be measured. An object of the present invention is to provide a VOC removal system that can be removed independently for each partition.

In order to solve the above-mentioned problems, in the present invention, a VOC removal device that collects VOC from indoor air, discharges it to the outdoors, and returns indoor air from which VOC has been removed to the indoor, and a VOC removal device are provided. A VOC removal system comprising: a VOC sensor; and a connection device that connects any one or more of a plurality of indoor compartments to the VOC removal device.
When the VOC removal system according to the present invention is used, a plurality of indoor sections are selectively connected to the VOC removal device, and the VOC sensor disposed in the VOC removal device is operated to form the indoor space. The air VOC concentration in a plurality of compartments can be measured independently for each compartment. In addition, by selectively connecting a plurality of indoor sections to a VOC removal apparatus and operating the VOC removal apparatus, the air VOCs in the plurality of sections formed indoors can be removed independently for each section. Can do.
If the VOC removal system according to the present invention is used, the running cost can be reduced by optimizing the operation flow such as performing VOC removal only in a section having a high VOC concentration.
When the VOC removal system according to the present invention is used, when there are a plurality of sections in which the VOC concentration in the air exceeds the specified value, the plurality of sections may be collectively connected to the VOC removal apparatus to perform VOC removal. Therefore, the VOC removal system according to the present invention is easy to use.

In a preferred embodiment of the present invention, a plurality of indoor compartments are sequentially connected to a VOC removal device by a connecting device, and the VOC concentration in the air is measured by the VOC sensor, and the VOC concentrations in the air in all the compartments are measured. After the measurement, the section where the VOC concentration in the air exceeds the specified value is alternatively or collectively connected to the VOC removing device by the connecting device to remove the VOC in the air.
The running cost can be reduced by removing the VOC only in the section having a high VOC concentration.
When there are a plurality of sections in which the VOC concentration in the air exceeds a specified value, the sections may be alternatively connected to a VOC removal apparatus to perform VOC removal, or the plurality of sections may be combined into the VOC removal apparatus. You may connect and perform VOC removal. Since the VOC removal mode can be selected, the VOC removal system according to the present invention is convenient.

In a preferred embodiment of the present invention, the VOC removal system is deactivated when the VOC concentration in the air in all compartments falls below a specified value.
The system consumes less energy by shutting down when the VOC concentration in the air in all compartments is below a specified value.

When the VOC removal system according to the present invention is used, a plurality of indoor sections are selectively connected to the VOC removal device, and the VOC sensor disposed in the VOC removal device is operated to form the indoor space. The air VOC concentration in a plurality of compartments can be measured independently for each compartment. In addition, by selectively connecting a plurality of indoor sections to a VOC removal apparatus and operating the VOC removal apparatus, the air VOCs in the plurality of sections formed indoors can be removed independently for each section. Can do.
When the VOC removal system according to the present invention is used, the running cost can be reduced by optimizing the operation flow such as performing VOC removal only in a section having a high VOC concentration in the air.
When the VOC removal system according to the present invention is used, when there are a plurality of sections in which the VOC concentration in the air exceeds the specified value, the plurality of sections may be collectively connected to the VOC removal apparatus to perform VOC removal. Therefore, the VOC removal system according to the present invention is easy to use.

Examples of the present invention will be described.

As shown in FIG. 1, the VOC removal system includes a VOC removal device A having a VOC sensor, and a manifold B that guides air in room 1, room 2, and room 3 to the VOC removal device A, respectively. Dampers C1, C2, and C3 are disposed in the branch flow paths B1, B2, and B3 connected to the room 1, the room 2, and the room 3 of the manifold B.
The VOC removal system further includes a manifold D for guiding the air from which VOC has been removed by the VOC removal device A to the rooms 1, 2 and 3, and an exhaust duct E for guiding the air to which VOC has been added by the VOC removal device A to the outside. And.
The VOC removal system further includes a controller F. The control device F controls the operation of the VOC removal device A, determines the VOC concentration in the air in the room 1, the room 2, and the room 3 based on the detection information of the VOC sensor, and sets the dampers C1, C2, and C3. The operation of the damper drive device G that opens and closes is controlled according to the VOC concentration.

As shown in FIG. 2, the VOC removal / removal device A includes a reproducible VOC adsorption rotor 1 that is driven to rotate by a motor (not shown). The VOC adsorption rotor 1 is made of a material that is formed in a honeycomb shape on a ceramic paper and that can absorb VOC and discharges the adsorbed VOC and regenerates it into a VOC adsorbable state, such as a material carrying hydrophobic zeolite thereon. It is configured.
The VOC removal apparatus A further causes the indoor air α to flow through the adsorption region 1a of the VOC adsorption rotor that forms the first fan-shaped portion on the front view projection of the VOC adsorption rotor 1, and passes through the adsorption region 1a. The first air flow path 2 for returning 'to the indoors, the first blower 3 disposed in the first air flow path 2, and the remaining fan-shaped portion on the front view projection of the VOC adsorption rotor 1 are formed. The indoor air α is allowed to flow through the regeneration area 1b of the VOC adsorption rotor, and the indoor air α ″ after passing through the regeneration area 1b is discharged to the outside. A second blower 5 provided, a heater 6 disposed in the second air flow path 4 and upstream of the VOC adsorption rotor 1 with respect to the air flow in the second air flow path 4, and the second air flow path 4 And the downstream of the VOC adsorption rotor 1 with respect to the air flow in the second air flow path 4. And a VOC sensor 7 was.
The upstream end of the first air passage 2 and the upstream end of the second air passage 4 are connected to the manifold B, the downstream end of the first air passage 2 is connected to the manifold D, and the second air passage 4 Is connected to an exhaust duct E.

An operation example of the VOC removal system according to the present embodiment will be described with reference to the flowchart of FIG.
When the power is turned off, the VOC removal device A, the control device F, and the damper driving device G are stopped, and the dampers C1, C2, and C3 are closed.
When the power is turned on manually, the control device F activates the first blower 3, the second blower 5, the heater 6, and the VOC sensor 7 of the VOC removal device A, and activates the damper drive device G (S1).

The control device F opens the damper C1 via the damper driving device G (S2).
The indoor air α in the room 1 passes through the manifold B and flows into the upstream end of the first air flow path 2 and the upstream end of the second air flow path 4 of the VOC removal device A. The VOC in the indoor air α flowing through the first air flow path 2 is adsorbed by the adsorption region 1a of the VOC adsorption rotor 1 and released into the heated indoor air α passing through the regeneration region 1b of the VOC adsorption rotor 1. . The indoor air α ′ from which the VOC has been removed flows out of the VOC removal device A through the first air flow path 2 and returns to the room 1 through the manifold D. The indoor air α ″ to which the VOC is added flows out of the VOC removal device A through the second air flow path 4 and is discharged to the outdoors through the exhaust duct E.
The VOC sensor 7 measures the VOC concentration of the indoor air α ″ flowing through the air flow path 4 (S3, S4).
Assuming that VOCs adsorbed in the adsorption region 1a are released 100% into the heated air passing through the regeneration region 1b, the VOC in the indoor air α ″ is ( (The flow rate of the air flow flowing through the first air flow path 2 + the flow rate of the air flow flowing through the second air flow path 4) / the flow rate of the air flow flowing through the second air flow path 4). When the concentration is low, the measurement accuracy of the VOC sensor 7 decreases, but even if the VOC concentration in the indoor air α is at a low level where high-precision measurement is impossible, the air flow in the first air channel 2 If the flow rate is set to an appropriate value larger than the flow rate of the air flow in the second air flow path 4, the VOC concentration in the indoor air α ″ is increased to a high level at which highly accurate measurement is possible. Can do. Therefore, the high-level VOC concentration in the indoor air α ″ can be measured with high accuracy, and the VOC concentration in the indoor air α can be indirectly measured with high accuracy by calculating back from the measured value.
The control device F opens the damper C1 for a predetermined short time, grasps and stores the VOC concentration in the indoor air α in the room 1 based on the detection information of the VOC sensor 7 (S5).

Next, the control device F closes the damper C1, opens the damper C2 for a predetermined short time, and grasps and stores the VOC concentration in the indoor air α in the room 2 based on the detection information of the VOC sensor 7. Next, the control device F closes the damper C2, opens the damper C3 for a predetermined short time, and grasps and stores the VOC concentration in the indoor air α in the room 3 based on the detection information of the VOC sensor 7 ( S6, S2-S5).

When there is no room where the VOC concentration in the indoor air α is higher than the specified value, the control device F stops the VOC removal device A and the damper drive device G. The power is turned off manually, the operation of the control device F is also stopped, and the entire system is stopped (S7 to S9).

When there is a room where the VOC concentration in the indoor air α is higher than the specified value, the control device F closes all the dampers in the room whose VOC concentration in the indoor air α is lower than the specified value via the damper driving device G. Then, all the dampers in the room where the VOC concentration in the indoor air α exceeds the specified value are opened for a predetermined long time. The VOC removal device A continues to operate, and the VOC adsorption rotor 1 regenerated by releasing the VOC in the regeneration region 1b again adsorbs VOC in the adsorption region 1a. The adsorption and release of the VOC by the VOC adsorption rotor 1 are repeated for a predetermined long time, and VOC removal of the room where the VOC concentration is high is collectively performed for a predetermined long time. The VOC concentration in the indoor air α decreases (S8, S10 to S16).

The control device F restarts the measurement of the VOC concentration in the indoor air α in each room (S2 to S6). Measurement of VOC concentration in indoor air α in each room and removal of VOC in indoor air α in rooms where the VOC concentration exceeds the specified value are repeated, so that the VOC concentration in indoor air α in all rooms is less than the specified value. Be controlled.

In the operation example of FIG. 3, when there is a room where the VOC concentration in the indoor air α is higher than the specified value, the control device F causes the VOC concentration in the indoor air α to be less than the specified value via the damper driving device G. Close all the room dampers, open all the room dampers for which the VOC concentration in the indoor air α exceeds the specified value over a predetermined period of time, and collect the VOC removal for these rooms over a predetermined period of time. As shown in the flowchart of FIG. 4, the control device F closes all the dampers in the room where the VOC concentration in the indoor air α is equal to or lower than the specified value via the damper driving device G. Then, all the dampers of the rooms in which the VOC concentration in the indoor air α exceeds the specified value are opened, and the VOC removal of these rooms is collectively performed until the VOC concentration in the indoor air α in these rooms becomes equal to or less than the specified value ( S10 S11, S13'~S15 ') may be in place to operate.

In the operation example of FIG. 3, when there is a room where the VOC concentration in the indoor air α is higher than the specified value, the control device F causes the VOC concentration in the indoor air α to be less than the specified value via the damper driving device G. Close all the room dampers, open all the room dampers for which the VOC concentration in the indoor air α exceeds the specified value over a predetermined period of time, and collect the VOC removal for these rooms over a predetermined period of time. As shown in the flowchart of FIG. 5, the controller F performs all the dampers in the rooms other than the room having the highest VOC concentration in the indoor air α via the damper driving device G. The room damper with the highest VOC concentration in the indoor air α is opened for a predetermined long time, and the VOC removal in the room is performed for a predetermined long time (S10′S11 ′, S12). ~ S16) It may be changed to motion.

In the operation example of FIG. 3, when there is a room where the VOC concentration in the indoor air α is higher than the specified value, the control device F causes the VOC concentration in the indoor air α to be less than the specified value via the damper driving device G. Close all the room dampers, open all the room dampers for which the VOC concentration in the indoor air α exceeds the specified value over a predetermined period of time, and collect the VOC removal for these rooms over a predetermined period of time. As shown in the flowchart of FIG. 6, the controller F performs all of the dampers in the rooms other than the room having the highest VOC concentration in the indoor air α via the damper driving device G. Close the door, open the damper of the room with the highest VOC concentration in the indoor air α, and remove the VOC in the room until the VOC concentration in the indoor air α of the room becomes equal to or lower than the specified value (S10 ′, S11 ′, S1 '~S15') may be in place to operate.

As can be seen from the above description, if the VOC removal system according to the present embodiment is used, a plurality of indoor sections are alternatively connected to the VOC removal apparatus A, and the VOC sensor 7 disposed in the VOC removal apparatus is installed. By operating, the VOC concentration in the air of a plurality of compartments formed indoors can be measured independently for each compartment. In addition, by selectively connecting a plurality of indoor compartments to the VOC removal device A and operating the VOC removal device A, the air VOCs in the plurality of compartments formed indoors are removed independently for each compartment. can do.
If the VOC removal system according to the present embodiment is used, the running cost can be reduced by optimizing the operation flow such as performing VOC removal only in a section having a high VOC concentration.
By using the VOC removal system according to the present embodiment, when there are a plurality of sections in which the VOC concentration in the air exceeds the specified value, the plurality of sections are alternatively connected to the VOC removal apparatus A to remove the VOC. Alternatively, the VOC removal system according to the present embodiment is easy to use because the plurality of sections can be collectively connected to the VOC removal apparatus A to perform VOC removal.
In the VOC removal system according to the present embodiment, when the VOC concentration in the air in all the compartments is equal to or lower than the specified value, the VOC removal system is deactivated to save energy consumption.

As shown in FIG. 7, a rotating moisture adsorption rotor 8 is added to the VOC removal apparatus A of the first embodiment, and the first air flow path 2 is the first on the front view projection of the rotating moisture adsorption rotor 8. The indoor air α is allowed to flow from the moisture adsorption rotor 8 to the VOC adsorption rotor 1 through the adsorption region 8a of the moisture adsorption rotor and the adsorption region 1a of the VOC adsorption rotor 1 forming the fan-shaped portion, and the second air flow path 4 rotates. The moisture adsorption rotor 8 forms a remaining fan-shaped portion on the front projection of the moisture adsorption rotor 8 and the regeneration region 8b of the VOC adsorption rotor 1 and the regeneration region 1b of the VOC adsorption rotor 1 and from the moisture adsorption rotor 8 toward the VOC adsorption rotor 1. You may comprise so that indoor air (alpha) may be flowed. The moisture adsorbing rotor 8 is formed of a material that can form a ceramic paper in a honeycomb shape, and that can absorb moisture and release the adsorbed moisture to regenerate the moisture adsorbable state, such as a material carrying hydrophilic zeolite thereon. Constitute.
In general, the VOC adsorption performance of the VOC adsorption area 1a of the VOC adsorption rotor 1 decreases when the humidity of the air passing through the area is high. Accordingly, with respect to the flow of the indoor air α flowing through the first air flow path 2, the adsorption region 8 a of the moisture adsorption rotor 8 is disposed upstream of the adsorption region 1 a of the VOC adsorption rotor 1, and the adsorption region of the VOC adsorption rotor 1. It is desirable to reduce the humidity of the indoor air α passing through 1a.

The shapes of the adsorption region 1a and the regeneration region 1b of the VOC adsorption rotor in the first embodiment and the shapes of the adsorption region 8a and the regeneration region 8b of the moisture adsorption rotor 8 in the second embodiment are not limited to the sector shape. It may be circular, rectangular, trapezoidal or the like.
Instead of indoor air, outdoor air may flow through the second air flow path 4.
The configuration of the VOC removal apparatus A is not limited to the configurations of the first and second embodiments. Any configuration may be used as long as it can remove the VOC in the indoor air while detecting the VOC concentration in the indoor air.

  The present invention is widely applicable to VOC removal systems.

It is an apparatus block diagram of the VOC removal system which concerns on 1st Example of this invention. It is an apparatus block diagram of the VOC removal apparatus with which the VOC removal system which concerns on 1st Example of this invention is provided. It is a flowchart of the operation example of the VOC removal system which concerns on 1st Example of this invention. It is a flowchart of the operation example of the VOC removal system which concerns on 1st Example of this invention. It is a flowchart of the operation example of the VOC removal system which concerns on 1st Example of this invention. It is a flowchart of the operation example of the VOC removal system which concerns on 1st Example of this invention. It is an apparatus block diagram of the VOC removal apparatus with which the VOC removal system which concerns on 2nd Example of this invention is provided.

Explanation of symbols

A VOC removal device B Manifold C1, C2, C3 Damper D Manifold E Exhaust duct F Control device G Damper drive device 1 VOC adsorption rotor 1a Adsorption region 1b Regeneration region 2, 4 Air flow path 3, 5 Blower 6 Heater 7 VOC sensor 8 Moisture adsorption rotor 8a Adsorption region 8b Regeneration region α Indoor air α 'Indoor air α "from which VOC has been removed Indoor air to which VOC has been added

Claims (3)

VOC is recovered from indoor air, discharged to the outdoors, and VOC removal device for returning indoor air from which VOC has been removed to indoors, a VOC sensor disposed in the VOC removal device, and any of a plurality of indoor compartments And a connection device that connects one or more of the devices to the VOC removal device. A plurality of indoor compartments are sequentially connected to a VOC removal device by means of a connecting device, the VOC concentration in the air is measured by the VOC sensor, the VOC concentration in the air in all the compartments is measured, and then the VOC in the air is measured. 2. The VOC removal system according to claim 1, wherein the VOC removal system according to claim 1 is configured to remove the VOC in the air by connecting a plurality of compartments whose concentration exceeds a specified value or a plurality of sections to the VOC removal device by a connection device. 3. The VOC removal system according to claim 2, wherein the operation is stopped when the VOC concentration in the air in all the compartments becomes a specified value or less.

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