JPH07253231A - Indoor air cleaning apparatus installed in wall of building - Google Patents

Abstract

PURPOSE:To clean and regenerate the indoor air contaminated with odor, dust, etc., without depending upon ventilation. CONSTITUTION:In order to clean and regenerate the indoor air, a suction fan 41 and a diffusing fan 42 are rotated, an exhaust control motor operated damper 61 and an intake control motor operated damper 62 are closed, whereas an air duct dividing motor operated damper 63 is opened. Thus, the indoor air is sucked into an air duct D in a wall via a suction louver 31, first filtered by a deodorizing dust collection filter 51 of a front stage to remove offensive odor and smoke from the air. The air cleaned by the filter 51 is then raised in the duct D, filtered by a deodorizing dust collection filter 55 of an intermediate stage, further filtered by a deodorizing duct collection filter 52 of a rear stage, and then returned from a diffusing louver 32 into a room.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor air purification device incorporated in a wall of a building such as a house, and more particularly to an indoor air purification device for purifying and regenerating indoor air polluted with odors and dust.

[0002]

2. Description of the Related Art With the increase in the industrial production rate of buildings, the wall of a building such as a house is first assembled with an upper frame, a lower frame and a vertical frame to form a wall frame. In many cases, it is constructed by attaching wall materials to both the inside and outside of the wall framework. According to this type of construction method, a predetermined space is created inside the wall, which is partitioned by the upper frame, the lower frame, the left and right vertical frames, and the inner and outer wall members. Therefore, in recent years, for example, as described in Japanese Utility Model Laid-Open No. 55-57645,
The space inside the wall formed as described above is used as a circulation air duct for promoting convection of indoor air, or as a ventilation air passage for exchanging dirty indoor air with clean outside air. A circulating ventilation system has been proposed. In this circulation ventilation system, an air inlet and an outlet are provided in the lower part and the upper part of the indoor side wall surface, and a ventilation port is provided in the outdoor side wall surface, respectively. And the ventilation port are in communication with each other via an air passage in the wall (a space in the wall). A fan for blowing air and a fan motor for driving the fan are installed in the air passage in the wall.

The above-mentioned circulation ventilation system is used in response to the cooling and heating operation of a separately arranged air conditioner in summer or winter. That is, when the air-conditioning operation of the air conditioner is performed and the fan for blowing air in the air passage in the wall is operated, the indoor air is sucked from the suction port, and the sucked indoor air rises (or falls) in the air passage in the wall. After being guided to the air outlet, it is again blown out into the room from the air outlet. As a result, mechanical convection is promoted and the room air is further agitated, so that a comfortable temperature and humidity environment is spread to every corner of the room. In addition, since the above-mentioned circulation ventilation system is installed in the wall as a part of the wall, the interior of the wall is not narrowed, and therefore it does not become an obstacle and does not spoil the aesthetics of the room. Have

[0004]

By the way, since the circulation ventilation system having the above-mentioned conventional structure is not provided with the damper at the ventilation port, the adjusted air in the room is exhausted as it is, and the cooling and heating efficiency in the room is deteriorated. Was invited. In order to solve the problem of lowering the cooling and heating efficiency, it is conceivable to provide a damper at the ventilation port and install a drive control device that selectively controls the ventilation operation mode and the circulation operation mode. However, by installing the drive control device and the damper, even if the problem of cooling and heating efficiency is solved, when a bad odor or dust occurs in the room during the circulation operation of the room air,
It is not possible to quickly remove the offensive odors and dust generated while maintaining the heating and cooling conditions. (Switching to ventilation operation mode can normally remove the offensive odors and dust, but this does not improve the cooling and heating conditions. Therefore, the cooling and heating efficiency will be reduced.) Therefore, in recent air-tightened houses, for example, the smell and smoke of cigarettes stay in the room forever, and the discomfort of residents is only aggravated.

On the other hand, the ventilation operation in an area where the outside air is more permanently polluted than the indoor air results in the invasion of pollutants and the ventilation has the opposite effect. Further, even in an area where the outside air is not permanently polluted, ventilation is similarly adversely effected outdoors even when a situation in which a large amount of bad odor and dust are accidentally generated.

The present invention has been made in view of the above circumstances, and purifies and regenerates indoor air contaminated with odors and dust without relying on ventilation, and also contaminates a blower fan, a damper, and the like. It is an object of the present invention to provide a wall-embedded indoor air purification device having a function of not being polluted with air.

[0007]

In order to solve the above-mentioned problems, an indoor air purifying apparatus according to the invention of claim 1 is
An indoor air inlet provided on the indoor side wall surface, a clean air outlet provided on the indoor side wall surface, an outside air intake provided on the outdoor side wall surface, and the outdoor side wall surface also provided on the outdoor side wall surface. An indoor air outlet, the inlet and the outlet, the inlet and the outlet, and the air passage in the wall that allows the inlet and the outlet to communicate with each other in the wall, One or more air blowing means for introducing and sending air into the air duct through the suction port, the air outlet, the intake port and / or the exhaust port, and for closing the via the intake port as necessary. An electric damper for intake control, an electric damper for discharge control for closing the discharge port as necessary, and the air passage is closed in a divided state as necessary, and only the suction port and the discharge port are provided. Indoor air exhaust passage that communicates with the above intake and outlet An electric damper for air passage division that divides into an outside air introduction passage that communicates only with the outside air, and an operation mode setting means that selectively sets a circulation operation mode for returning indoor air or a ventilation operation mode for exchanging indoor air with outside air. And when the ventilation operation mode is set by the operation mode setting means, the intake control electric damper and the discharge control electric damper are opened and the wind path dividing electric damper is closed. On the other hand, when the circulation operation mode is set, the operation control means for closing the intake control electric damper and the discharge control electric damper and for opening the air duct dividing electric damper is provided. And is provided with a deodorant odor dust filter that removes offensive odors and dust from contaminated air, just upstream of each of the air blowers. That.

According to the second aspect of the present invention, in the indoor air purifying device, odor and dust are removed from contaminated air immediately upstream of the intake control electric damper and the discharge control electric damper. It is characterized in that a deodorant odor dust filter is installed.

[0009]

According to the first aspect of the present invention, the contaminated indoor air or the outside air is filtered by the air blower through the deodorizing and dust collecting filter to remove the bad odor and dust, and is purified and regenerated. Then, it becomes clean air, is introduced into the air duct through the suction port and the intake port, and is sent out from the blow port and the discharge port. As described above, since each air blower is located immediately upstream of the respective deodorant dust filter, the air blower takes in clean air purified by the deodorant dust filter, and the fan of this air blower is used. It does not pollute the motor that rotates the fan or this fan. Further, the clean air taken into the air passage by the air blowing means is blown out into the room from the air outlet. According to the configuration of claim 2, clean air obtained by removing the bad odor and dust from the contaminated air by the deodorizing dust filter,
Since the intake control electric damper and the discharge control electric damper are made to pass therethrough, the respective electric dampers are not contaminated.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the construction of a building unit to which an embodiment of the present invention is applied, and FIG.
[Fig. 3] is a front view showing a wall panel on the girder (long side) side of the same building unit in an enlarged manner. The building unit is a box-shaped unit of a transportable size that constitutes a room portion of one building, and is manufactured in advance in a factory. As shown in FIG. On the wall panel 2
a, 2a, 2b are erected, and the wall panel 2 on the girder (long side) side
An indoor air purifying device according to an embodiment of the present invention is incorporated in b.

As shown in FIGS. 1 and 2, each of the wall panels 2a (2b) is provided on both inner and outer surfaces of a wall frame assembly composed of an upper frame 21, a lower frame 22 and a plurality of vertical frames 23 ,. , Inner wall materials such as gypsum board and hard wood chip cement board 2
4. The outer wall material 25 is nailed and attached to form a bearing wall. In the wall framework, the plurality of vertical frames 23, 23, ... Are juxtaposed at a predetermined interval from each other, and these vertical frames 23, 23 are provided between each vertical frame 23 and an adjacent vertical frame 23. The upper frame 21, the lower frame 22, the inner wall surface material 24, and the outer wall surface material 25 are closed in six directions to form chimney-shaped wall inner vertically long space portions S, S, .... Each wall vertical space S is filled with a heat insulating and sound absorbing material such as glass wool as necessary, but any one wall vertical space S of the girder side wall panel 2b is It is used as the air passage D in the wall of the indoor air purification device. In addition, each wall panel 2a
In (2b), if necessary, an opening K such as a doorway or a window.
Is provided.

3 and 4 are vertical sectional views of the indoor air purifying apparatus taken along the line AA of FIG. This indoor air purification device has an in-wall air passage D that guides air for ventilation and air purification. As described above, the wind passage D in the wall includes the vertical frames 23, 23 that form the wall panel 2b as a part of the wall panel 2b on the girder side (the vertically long space portion S in the wall), and the inner wall material 2
4, the outer wall material 25, the upper frame 21, the lower frame 22 and the like, and extends upright (in a chimney shape) from the floor side to the ceiling side. On the indoor side wall of the in-wall air passage D, an opening for indoor air intake is provided at a site near the lower end of the side wall (site near the floor), and a site near the upper end (site near the ceiling). ) Is provided with an opening for blowing clean air, a movable suction louver 31 is provided at the opening for sucking indoor air, and a movable blowing louver 3 is provided at the opening for blowing clean air.
Two are fitted in each. On the outdoor side wall of the air passage D in the wall, an opening for indoor air discharge is provided near the lower end of the side wall, and an opening for outside air intake is provided near the upper end. A discharge louver 34 with a canopy 33 is fitted in the opening for discharging indoor air, and an intake louver 36 with a canopy 35 is fitted in the opening for taking in outside air.

On the downstream side immediately behind the back surface of the suction louver 31, there is provided a deodorizing / dust collecting filter 51 for removing bad smell and dust from contaminated indoor air and regenerating the indoor air into clean air. A suction fan 41 for sucking indoor air is provided immediately downstream of the suction fan 41. The suction fan 41 is directly driven by a suction motor having a common axis. Since the deodorizing and dust collecting filter 51 is provided on the upstream side of the suction fan 41, the air to be taken in is always clean air, and therefore the fan blades and the main body of the suction motor are not contaminated.

The deodorizing and dust collecting filter 51 is a dust collecting sheet filter capable of filtering out fine particles such as cigarette smoke, and basic malodors such as hydrogen sulfide malodor and acidic malodor, and ammonia malodor. A replaceable sheet-like composite filter that is laminated with a dust collection sheet filter that can be adsorbed and removed.As the dust collection filter, for example, deodorant paper carrying a deodorant substance such as iron phthalocyanine octacarboxylic acid Clinsky (trade name of Kojin Co., Ltd.), which is a sheet of pulp, is suitable.

A blowing fan 42 for blowing clean air into the room is provided on the upstream side immediately behind the back surface of the blowing louver 32. The blowing fan 42 is directly driven by a blowing motor having a common axis. An odor eliminating dust collecting filter 52 for removing bad odors and dust from contaminated outside air and regenerating the outside air into clean air is provided on the upstream side immediately behind the blowing fan 42. The deodorant dust collecting filter 52 has the same structure as the above deodorant dust collecting filter 51.

An exhaust control electric damper 61 is provided immediately upstream of the rear surface of the exhaust louver 34 on the upstream side so as to adjust the air volume during indoor air exhaust (ventilation) and to close the exhaust port during the circulation operation mode. An odor eliminating dust filter for removing offensive odors and dust from contaminated indoor air and converting the indoor air into clean air and discharging the air outdoors on the upstream side immediately behind the rear surface of the exhaust control electric damper 61. 53 is provided. Since the deodorizing and collecting filter 53 is provided to discharge the clean air, not only does the outdoor air not get dirty, but the contaminated outside air is prevented from flowing into the intake louver 36 again. I'm out. Further, on the downstream side immediately behind the back surface of the intake louver 36, there is provided a deodorizing dust collecting filter 54 for removing bad odors and dust from contaminated outside air and regenerating the outside air into clean air. Further, on the downstream side of the deodorant dust collecting filter 54,
An intake control electric damper 62 is provided for adjusting the air volume during intake of the outside air (ventilation) and for closing the intake during the circulation operation mode. Further, in the middle portion of the inner wall air passage D, in the ventilation operation mode, the inner wall air passage D is closed at the middle portion so as to be divided into a lower indoor air discharge passage and an upper outside air introduction passage. An electric damper 63 for dividing the wind path is provided,
Immediately downstream of the air duct dividing electric damper 63, a deodorizing dust collecting filter 55 for further removing a bad smell and dust from the indoor air taken in from the suction louver 31 via the deodorizing dust collecting filter 51. Is provided. In addition,
The deodorant dust filter 53, the deodorant dust filter 54, and the deodorant dust filter 55 have the same structure as the deodorant dust filter 51 and the deodorant dust filter 52.

As shown in FIG. 2, a control section 71 for controlling each section of the apparatus is provided at a lower portion of the vertically long space section S in the wall adjacent to the air passage D in the wall, and above the control section 71. An operation panel 72 for setting various operation modes and the like of the apparatus is attached to a predetermined portion of the inner wall material 24 corresponding to. The control unit 71 controls the rotation of the suction fan 41 (suction motor) and the blowing fan 42 (blowing motor), the wind direction control of the suction louver 31 and the blowing louver 32, the discharge control electric damper 61, and the intake control. The various controls of each part of the device, including the opening / closing control of the electric damper 62 for air and the electric damper 63 for dividing the airway are electrically performed.

Next, the operation of the indoor air purifying device having the above structure will be described. Figure 5 shows the building unit (Figure 1)
It is an indoor scene map of a residential room part in which is incorporated.
In this room, a wall-mounted room air conditioner R is provided in addition to the indoor air purifying device incorporated in the wall portion. [A] Circulating Operation Now, assume that a bad odor and a large amount of smoke are contained due to being inside the room during a heating operation (or a cooling operation) of the room air conditioner R. In this scene, a person operates the operation panel 72 to turn on the power of the indoor air purification device of this example and sets the operation mode to the circulation operation mode.

When the power is supplied and the circulation operation mode is set, the control unit 71 controls the suction motor and the blowing motor to control the suction fan 41 and the blowing fan 4.
Start 2 and turn it into a rotating state. Further, as shown in FIG. 3, the opening / closing drive of the discharge control electric damper 61, the intake control electric damper 62, and the wind path dividing electric damper 63 is controlled to discharge the exhaust louver (opening for discharging indoor air). 34 and the intake louver (opening for outside air intake) 36 are closed, while the air passage D in the wall is opened. As a result, the indoor air polluted by the foul odor and smoke will be discharged into the suction fan 41.
Is mainly sucked into the air passage D in the wall through the suction louver 31, and first, the deodorizing and dust collecting filter 5 in the front stage is
It is filtered by No. 1 to remove bad smell and smoke. The air purified by the deodorizing and dust collecting filter 51 is
The inside air passage D in the wall rises from the floor side to the ceiling side, and is filtered again by the deodorizing and collecting filter 55 in the middle stage and the deodorizing and collecting filter 52 in the latter stage by the main function of the blowing fan 42. . By this re-filtration, the air that has risen in the air passage D in the wall is further surely purified, and the blowing louver 3
It is returned to the room from 2. In this way, when the indoor air purification device of this example is operated in the circulation operation mode, the contaminated indoor air is forcibly recirculated and filtered, so that foul odors and smoke can be quickly generated even without relying on ventilation. Can be removed. Therefore, the heating state (or the cooling state) of the room is not deteriorated.

[B] Ventilation operation At the time of oxygen deficiency, a person operates the operation panel 72 to
The indoor air purification device is turned on and the operation mode is set to the ventilation operation mode. When the power is supplied and the ventilation operation mode is set, the control unit 71
By controlling the suction motor and the blowing motor, the suction fan 41 and the blowing fan 42 are started and brought into a rotating state. Further, as shown in FIG. 4, the opening / closing drive of the discharge control electric damper 61, the intake control electric damper 62, and the wind path dividing electric damper 63 is controlled to open the discharge louver 34 and the intake louver 36. Meanwhile, the air passage D in the wall is closed at its intermediate portion. As a result, the air passage D in the wall is divided into a lower indoor air discharge passage and an upper air introduction passage.

Thus, the oxygen-deficient indoor air is sucked into the air passage D in the wall through the suction louver 31 by the function of the suction fan 41, and the deodorizing and dust collecting filter 51 and the deodorizing and dust collecting dust are collected. It is discharged to the outside from the discharge louver 34 through the filter 53. On the other hand, by the action of the blowing fan 42, the outside air is taken into the air passage D in the wall via the intake louver 36, and is guided to the deodorizing and dust collecting filter 54 and the deodorizing and dust collecting filter 52. Therefore, the foul odor and smoke are removed (depending on the degree of pollution of the outside air), and fresh outside air is obtained from the blowing louver 32.
It is introduced indoors.

As described above, according to the configuration of this example, since the suction fan and the blowing fan are located on the upstream side of the deodorizing and dust collecting filter, these fans have no deodorizing and collecting dust. Since the clean air that has been removed is taken in, the fan blades and the main body of the motor that drives this fan are not contaminated. Further, indoor air and outdoor air contaminated with bad odors and dust are also introduced into the room after being purified by the deodorizing and dust collecting filter, so that comfortable ventilation can be performed. As a modified example of this example, the blowing fan 42 is used.
It is possible to set the intake operation mode in which only the intake air is operated by operating only the outside air and the exhaust operation mode in which only the intake fan 41 is operated to perform the exhaust operation of the contaminated indoor air. You can also do it. Both of these modes can be set instead of the above-mentioned ventilation operation mode or in addition to the ventilation operation mode. Also,
A room air diversion mechanism may be provided so as to partially recirculate and partially discharge (ventilate) in the air passage in the wall.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific structure is not limited to this embodiment, and there are design changes and the like within the scope not departing from the gist of the present invention. Also included in the present invention. For example, instead of the louver, a grill may be fitted in each opening of the air passage in the wall. Further, not only the wall panel on the girder side but also the wall panel on the gable side may be incorporated with the indoor air purifying device of the present invention. Further, instead of the suction fan and the blow-out fan capable of only normal rotation, a suction blow-out fan capable of both normal rotation and reverse rotation is used, so that the recirculation direction of the indoor air can be appropriately changed. Further, either one of the suction fan and the blowing fan can be omitted as necessary. Further, each electric damper may use either an electric actuator or a hydraulic actuator as long as the actuator is electrically controlled.

Further, in order to ensure waterproofness in the wall,
The inner surface of the air passage in the wall may be covered with a waterproof sealing material. Further, in the above-mentioned embodiment, the case where the vertically long space in the wall is used as it is as the air passage in the wall is described. The duct may be housed in a vertically long space in the wall for use. Alternatively, the non-combustible duct or the blower pipe may be provided only in a part of the vertically long space in the wall (for example, in the vicinity of the opening for intake of indoor air or the opening for intake of outside air).

Furthermore, the present invention is not applied only to a wall portion of a building formed by a wall-type construction method (where a chimney-shaped vertically long space portion is generated in the wall) or a construction method similar to this, but is not limited to The present invention can be applied even to a wall portion formed by a construction method in which a vertically long space portion does not occur, as long as it has a thickness that allows an existing duct to be buried.

The deodorizing and dust collecting filter is not limited to the sheet type, but may be a granular type, a non-woven type or a cotton type.
Further, the deodorizing and dust collecting filter is not limited to the laminated composite of the deodorizing filter and the dust collecting filter, and may be made of a single material having both deodorizing property and dust collecting property. The deodorizing and dust collecting filter of the present invention includes a case where the deodorizing filter and the dust collecting filter are separately arranged with a predetermined distance from each other. When the deodorizing filter and the dust collecting filter are separately arranged, the malodor (dust) is first removed, and then the
Dust (bad smell) will be removed, but in the end,
This is because the laminated composite of the deodorizing filter and the dust collecting filter has the same function and effect in that both the bad odor and the dust are removed.

Further, in the above-described embodiment, the deodorant dust collecting filter is provided on the upstream side of each fan, but the present invention is not limited to this, and it may be provided only on the upstream side of one fan. Similarly, in the above-mentioned embodiment, it is provided on the upstream side of the intake control electric damper and on the downstream side of the wind path dividing electric damper, but on the upstream side of the discharge control electric damper and the wind path dividing electric damper. It may be provided.

[0028]

As described above, according to the structure of claim 1, since the deodorant odor dust filter is located immediately upstream of the air blowing means, the air blowing means including a fan and a motor for driving the fan. Can be prevented from getting dirty. In addition, indoor air contaminated with odors, dust, etc. can be purified and regenerated without relying on ventilation (thus, without deteriorating the cooling / heating state and invading contaminated outside air).

Further, according to the second aspect of the invention, since the deodorant odor dust filter is located immediately upstream of the intake control electric damper and the discharge control electric damper, the respective electric dampers are polluted by the contaminated air. It can prevent it from getting dirty.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of a building unit to which an embodiment of the present invention is applied.

FIG. 2 is a front view showing, out of the wall panels of the building unit, a girder-side wall panel in which the indoor air purifying device of the first embodiment of the present invention is incorporated, taken out and enlarged. .

FIG. 3 is a vertical cross-sectional view showing a schematic configuration of the indoor air purification device.

FIG. 4 is a vertical sectional view showing a schematic configuration of the indoor air purification device.

FIG. 5 is an indoor scene diagram of a residential room portion configured by the building unit.

[Explanation of symbols]

 D Wall wind passage (wind passage) S Wall vertical space (inside wall, wind passage) 2b Girder side wall panel (building wall portion) 24 Inner wall surface material (wall component member, outdoor side wall surface) 25 Outer wall material (wall member, indoor side wall surface) 31 suction louver (suction port) 32 blowout louver (blowout port) 34 discharge louver (discharge port) 36 intake louver (intake port) 41 suction fan (blower means) ) 42 blower fan (blower means) 51, 52, 53, 54, 55 deodorizing dust filter 61 electric damper for discharge control 62 electric damper for intake control 63 electric damper for airway division 71 control section (operation control means) ) 72 Operation panel

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location F24F 11/02 102 J

Claims (2)

[Claims] 1. An indoor air suction port provided on an indoor side wall surface, a clean air outlet provided on the indoor side wall surface, an outside air intake port provided on an outdoor side wall surface, and the same shop. An indoor air outlet provided on the outer wall surface, the inlet and the outlet, the inlet and the outlet, and
Introducing and sending air into the air duct through the in-wall air passage that allows the intake port and the air outlet to communicate with each other in the wall, and the suction port, the air outlet, the intake port, and / or the exhaust port. A blower means or a plurality of blower means, an intake control electric damper for closing the intake passage through as needed, an exhaust control electric damper for closing the exhaust opening as necessary, and An air passage that closes the air passage in a divided state as necessary, and divides it into an indoor air discharge passage that communicates only with the suction port and the discharge port and an outside air introduction passage that communicates only with the intake port and the blowout port. An electric damper for dividing, an operation mode setting means for selectively setting a circulation operation mode for returning indoor air or a ventilation operation mode for exchanging indoor air with outside air, and the ventilation operation mode is set by the operation mode setting means. Configuration When, while the intake control electric damper and the discharge control electric damper open,
When the circulation operation mode is set while the wind path dividing electric damper is closed, the intake control electric damper and the discharge control electric damper are closed and the wind passage cutting electric damper is closed. An operation control means for opening the damper is provided, and a deodorant odor dust filter that removes offensive odors and dust from contaminated air is provided immediately upstream of each of the air blowers. Indoor air purification device built into the wall of a building. 2. An odor eliminating dust filter for removing offensive odors and dust from contaminated air is provided immediately upstream of each of the intake control electric damper and the discharge control electric damper. An indoor air purification device incorporated in a wall portion of a building according to claim 1.