JP4432661B2 - Building pollen removal system - Google Patents

Description

  The present invention relates to a pollen removing system for removing pollen mainly from a room in a building such as a house.

  A vacuum cleaner may be used to remove pollen that has entered the interior of a house, but if such a vacuum cleaner is used, pollen may be caused to rise, which is often incomplete. .

  In recent years, air purifiers having a pollen removing function are commercially available. In this type of air purifier, pollen is removed by sucking indoor air and passing it through a pollen removing filter or the like, and clean air after removing pollen. By repeating the circulation of returning the air to the room again, the pollen concentration in the room is reduced, and the pollen in the room can be efficiently removed as compared with the vacuum cleaner.

  However, even if indoor pollen is removed by using such an air cleaner, there is a problem that fresh air containing pollen is newly taken into the room when the room is ventilated.

  Therefore, for example, as disclosed in Patent Document 1, an air supply port and an exhaust port with a pollen removal filter are provided on the wall surface of the room, and the indoor air is forcibly exhausted from the exhaust port by an exhaust fan. A ventilation system has been proposed in which outside air from which pollen has been removed from the mouth is taken into the room. Therefore, by using such a ventilation system and an air cleaner in combination, pollen in the room can be efficiently removed while performing ventilation.

JP-A-11-2445

  However, when the ventilation system and the air purifier are used in combination as described above, the initial cost such as the purchase cost of the air purifier increases, and the ventilation system and the air purifier are operated independently of each other. Therefore, there has been a problem that running costs such as electricity bills increase.

  An object of the present invention is to eliminate the above-mentioned problems and to incorporate indoor pollen removal technology into a ventilation system, thereby realizing cost reduction and effectively performing indoor ventilation and indoor pollen removal. .

  In order to solve the above problems, a pollen removal system for a building according to the present invention includes an air supply means for supplying outside air into a room, and a first pollen removal means for removing pollen in the outside air supplied by the air supply means. And an exhaust means for exhausting the indoor air to the outdoors, a circulation flow path for returning the indoor air exhausted by the exhaust means back into the room, and a circulation flow rate adjusting means for adjusting the amount of indoor air guided to the circulation flow path The second pollen removing means for removing pollen in the indoor air leading to the circulation flow path, and the control means for controlling the air supply means, the exhaust means and the circulation flow rate adjusting means are provided.

Specifically, the control means exhausts the indoor air of a necessary ventilation amount to the outside among the indoor air exhausted by the exhaust means at the pollen scattering time, and guides the remaining indoor air to the circulation path. In addition to controlling the exhaust means and the circulation flow rate adjusting means, the air supply means is controlled so as to supply an amount of outside air substantially equal to or larger than the amount of indoor air exhausted to the outdoors.

Further, the control means exhausts the indoor air of a necessary ventilation amount to the outside of the indoor air in a smaller amount than the pollen scattering time exhausted by the exhaust means in the winter, and the remaining indoor air to the circulation path. As described above, the exhaust means and the circulation flow rate adjusting means are controlled, and the air supply means is controlled so as to supply outside air that is substantially the same amount or smaller than the amount of indoor air exhausted outdoors.

Further, the control means exhausts the indoor air having a smaller required ventilation amount than the winter season exhausted by the exhaust means directly to the outside without introducing it to the circulation path in the general period excluding the pollen scattering time and the winter season. In addition to controlling the exhaust means and the circulation flow rate adjusting means, the air supply means is controlled so as to supply the same amount of outside air as the amount of indoor air exhausted outdoors.

  Furthermore, it comprises pollen detection means for detecting the amount of pollen scattered outdoors, and the control means controls the air supply means, exhaust means and circulation flow rate adjustment means based on a detection signal from the pollen detection means.

  In addition, an outside air temperature detecting means for detecting the outside air temperature is provided, and the control means controls the air supply means, the exhaust means, and the circulation flow rate adjusting means based on a detection signal from the outside air temperature detecting means.

  In the pollen removal system according to the present invention, the indoor air can be circulated to remove pollen during indoor ventilation using the air supply means and the exhaust means. It can be removed efficiently. Moreover, it can be realized only with the ventilation equipment, and the initial cost and running cost can be reduced as compared with the case of using an air purifier together.

  Also, during the pollen scatter period, the outdoor air is supplied to the outside of the walls of the house to prevent negative pressure inside the room by supplying the same amount of outdoor air as the amount of indoor air exhausted to the outside or a larger amount. It is possible to prevent entry into the room through a gap such as a window.

  Furthermore, in the winter season, the cool air can be mitigated by circulating warm room air and adding it to the cool outside air to be supplied. In addition, the amount of outside air that is exhausted to the outside is supplied by supplying air that is approximately the same as or less than the amount of room air that is exhausted to the outside, so that the room does not become positive pressure, and condensation inside the wall due to moisture intrusion into the wall. Can be prevented.

  Further, by performing only the ventilation operation by simple air supply / exhaust during the general period, the running cost can be further reduced by reducing the load on the air supply means and the exhaust means.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3 show a two-story house to which a pollen removing system according to an embodiment of the present invention is applied. In the figure, (1) is an air supply fan as an air supply means for supplying outside air into the room, and (2) is an exhaust fan as an exhaust means for discharging indoor air to the outdoors.

  The air supply fan (1) and the exhaust fan (2) are attached to, for example, the wall surfaces of the atrium hole (3) straddling the first floor and the second floor. In particular, the exhaust fan (2) is attached to the lower end of the wall surface, that is, near the floor surface, so that pollen that tends to accumulate near the floor surface can be efficiently discharged.

  On the outside air inflow side of the air supply fan (1), a pollen removing filter (5) is provided as a first pollen removing means for removing pollen in the outside air. As this pollen removal filter (5), for example, a non-woven fabric or the like holding an inactivating agent that inactivates pollen allergen is used. As the inactivating agent, for example, various chemical substances that denature proteins, proteolytic enzymes, and the like are used. In addition, as a 1st pollen removal means, instead of the above-mentioned pollen removal filter (5), a cyclone separator that separates and collects pollen from the outside air using centrifugal force may be detachably provided. .

  An air supply duct (10) is connected to the outside air outflow side of the air supply fan (1). This air supply duct (10) is branched, and one branch duct (11) faces the interior of the first floor room (14) through the ceiling back space (13) on the first floor, and the other branch duct. (12) faces the room of the second floor room (16) through the ceiling space (15) on the second floor.

  On the indoor air inflow side of the exhaust fan (2), a pollen removing filter (20) is provided as a second pollen removing means for removing pollen in the indoor air. As the pollen removal filter (20), for example, a non-woven fabric holding an inactivating agent that inactivates the pollen allergen is used in the same manner as the air supply side pollen removal filter (5). As the second pollen removal means, instead of the above-mentioned pollen removal filter (20), a cyclone separator that separates and collects pollen from room air using centrifugal force may be provided detachably. good.

  Further, an exhaust duct (21) for discharging indoor air exhausted by the exhaust fan (2) to the outside is connected to the indoor air outflow side of the exhaust fan (2). The exhaust duct (21) and the air supply duct (10) are connected via a circulation duct (22) as a circulation flow path, and the indoor air exhausted by the exhaust fan (2) is supplied. It can be returned to the room again.

  As shown in FIG. 4, a damper device (25) serving as a circulation flow rate adjusting means is provided at a connection portion between the circulation duct (22) and the exhaust duct (21). The damper device (25) drives, for example, a fin (26) that is rotatable between a state in which the exhaust duct (21) is closed and a state in which the circulation duct (22) is closed. And a motor (not shown) that adjusts the rotation angle of the fin (26), thereby adjusting the amount of indoor air led to the circulation duct (22).

  (30) is a pollen sensor as a pollen detection means for detecting the amount of pollen scattered outdoors, (31) is a temperature sensor as an outside air temperature detection means for detecting the outside air temperature, and (32) is a micro sensor as a control means. A control unit composed of a computer or the like. As the pollen sensor (30), for example, a commercially available sensor that counts the amount of pollen in the outside air and outputs a pulse signal corresponding to the counted value is used.

  As shown in FIG. 5, a pollen sensor (30) and a temperature sensor (31) are connected to the input side of the control unit (32), and an air supply fan (30) is connected to the output side of the control unit (32). 1) An exhaust fan (2) and a damper device (25) are connected.

  The control unit (32) determines the pollen scattering time, the winter season, and other general times based on the detection signals from the pollen sensor (30) and the temperature sensor (31), and the air supply fan ( 1) The driving of the exhaust fan (2) and the damper device (25) is controlled.

  Specifically, the control unit (32) exhausts a large amount of room air by the exhaust fan (2) during the pollen scattering period, and guides most of the room air to the circulation duct (22). The air supply fan controls the drive of the fan (2) and the damper device (25), and supplies an amount of outdoor air substantially equal to or larger than the amount of indoor air exhausted outdoors by the exhaust fan (2). The drive of (1) is controlled. In winter, the exhaust fan (2) and the damper are exhausted by the exhaust fan (2) so that a smaller amount of room air is exhausted than the pollen scattering period and a part of the room air is led to the circulation duct (22). The drive of the air supply fan (1) is controlled so that the drive of the device (25) is controlled and the outside air exhausted to the outdoors by the exhaust fan (2) is supplied to approximately the same amount or a small amount. Control. Further, in the general period, the exhaust fan (2) and the damper device (25) are arranged so that the exhaust fan (2) exhausts a smaller amount of indoor air directly to the outside without introducing it to the circulation duct (22) than in the winter. In addition to controlling the drive, the drive of the air supply fan (1) is controlled so that the amount of outside air that is exhausted to the outdoors by the exhaust fan (2) is supplied.

  In the pollen removal system having the above-described configuration, for example, in the pollen scattering period from March to May, as shown in FIG. According to 2), the room air is exhausted in an amount that allows pollen removal and ventilation (for example, an amount corresponding to a ventilation rate of 5.0 times / h). Among them, the necessary amount of ventilation (for example, the amount corresponding to the ventilation frequency of 0.5 times / h) is exhausted to the outdoors, and the remaining majority (for example, the amount corresponding to the ventilation frequency of 4.5 times / h) of the room Air is guided to the circulation duct (22) by the damper device (25). At the same time, the air supply fan (1) supplies the amount of outside air that is substantially the same as the amount of indoor air exhausted outdoors, that is, the amount corresponding to the number of ventilations of 0.5 times / h.

  At this time, for the outside air, the pollen is removed by passing through the pollen removal filter (5), and the indoor air circulated through the circulation duct (22) is passed through the pollen removal filter (20). Pollen is removed.

  The outside air and room air from which the pollen has been removed are merged and mixed, and then supplied to the first floor room (14) and second floor room (16) through the branch ducts (11) and (12), respectively. Is done.

  As described above, in the pollen scattering period, the indoor pollen can be efficiently removed by circulating a larger amount of indoor air than the necessary ventilation amount while securing the necessary ventilation amount.

  In addition, the simultaneous supply and exhaust can prevent the room from becoming a negative pressure and prevent the outdoor pollen from entering the room through a gap such as a wall of a house or a window. In addition, if the amount of outside air supplied by the air supply fan (1) is larger than the amount of indoor air exhausted to the outdoors by the exhaust fan (2), the indoor pressure becomes positive and the ingress of outdoor pollen is ensured. Can be prevented.

  On the other hand, in the winter period from December to February, for example, as shown in FIG. 2, the temperature sensor (31) detects the low outside air temperature of 10 ° C. or less, for example, and is necessary by the exhaust fan (2). Warm room air of an amount obtained by adding the circulation amount to the ventilation amount (for example, an amount corresponding to a ventilation frequency of 1.0 times / h) is exhausted. Among them, the required amount of ventilation (for example, the amount corresponding to the number of ventilations 0.5 times / h) is exhausted to the outdoors, and the remaining amount of circulation (the amount corresponding to the number of ventilations 0.5 times / h) Then, it is guided to the circulation duct (22) by the damper device (25). At the same time, the air supply fan (1) supplies cold outside air in an amount substantially equal to the amount of indoor air exhausted outdoors, that is, an amount corresponding to the number of ventilations of 0.5 times / h.

  Then, the cold indoor air and the warm indoor air that circulates are merged and mixed, and then supplied to the interiors of the first floor room (14) and the second floor room (16) through the branch ducts (11) and (12), respectively. The

  In this way, in winter, while keeping the necessary ventilation, circulating the warm indoor air and mixing it with the cold outside air, alleviates the cold outside air supplied to the room and improves the comfort. Can do.

  In addition, the simultaneous supply and exhaust can prevent the room from becoming positive pressure and prevent condensation inside the wall due to moisture intrusion into the wall. If the amount of outside air supplied by the air supply fan (1) is less than the amount of indoor air exhausted to the outdoors by the exhaust fan (2), the interior of the wall body is surely condensed with negative pressure. Can be prevented.

  In the general period from June to November, for example, other than the pollen scattering period and the winter period, as shown in FIG. 3, the pollen sensor (30) detects the amount of pollen below the set value, and the temperature sensor (31). However, by detecting the outside air temperature higher than 10 ° C., for example, the exhaust fan (2) does not lead the room air to the circulation duct (22), and the necessary ventilation (for example, the ventilation frequency is 0.5 times / h). Air) is exhausted to the outdoors, and the air supply fan (1) allows the amount of outside air to be substantially the same as the amount of indoor air to be exhausted outdoors, that is, the number of ventilations is 0.5 times / h. Supply air into the room.

  The outside air supplied by the supply fan (1) is supplied to the first floor room (14) and the second floor room (16) through the branch ducts (11) and (12), respectively.

  As a result, the necessary ventilation amount can be secured, and the supply / exhaust by the fans (1) and (2) can be suppressed to the necessary minimum of about 0.5 times / h of ventilation to reduce the running cost.

  When the pollen sensor (30) detects the amount of pollen above the set value and the temperature sensor (31) detects a low outside air temperature, that is, when the pollen is scattered and the outside air temperature is low, the pollen scattering time Priority should be given to either driving in winter or driving in winter.

  In addition, this invention is not limited to the said embodiment, Of course, many corrections and changes can be added to the said embodiment within the scope of this invention.

  For example, it is not always necessary to provide both the pollen sensor (30) and the temperature sensor (31), and one of them is provided, and the detection fan determines the pollen scattering time, winter season, and general time, and the air supply fan ( 1) The driving of the exhaust fan (2) and the damper device (25) may be controlled.

  Furthermore, the pollen sensor (30) and the temperature sensor (31) are abolished, and the air supply fan (1), the exhaust fan (2) and the damper device (25) are driven by the control unit (32) having a timer function. You may make it control. For example, for example, from March to May measured by the timer function of the control unit (32) is the pollen scattering time, for example, from December to February measured by the timer function is the winter season, and from the remaining, for example, June You may make it perform said driving | operation by making the time until about November into a general time.

It is a figure which shows the driving | running state of the pollen scattering time in the pollen removal system which concerns on one Embodiment of this invention. It is a figure which similarly shows the driving | running state of the winter season. It is a figure which similarly shows the driving | running state of the general time. It is the schematic of a damper apparatus. It is a control block diagram.

Explanation of symbols

(1) Air supply means (air supply fan)
(2) Exhaust means (exhaust fan)
(5) First pollen removal means (pollen removal filter)
(20) Second pollen removal means (pollen removal filter)
(22) Circulation channel (circulation duct)
(25) Circulating flow rate adjusting means (damper device)
(30) Pollen detection means (pollen sensor)
(31) Outside air temperature detection means (temperature sensor)
(32) Control means (control unit)

Claims (3)

Air supply means for supplying outside air into the room, first pollen removal means for removing pollen in the outside air supplied by the air supply means, exhaust means for exhausting indoor air to the outdoors, and exhaust by the exhaust means A circulation flow path for returning indoor air to be returned to the room, circulation flow rate adjusting means for adjusting the amount of indoor air led to the circulation flow path, and second pollen for removing pollen in the room air led to the circulation flow path Removing means, and control means for controlling the air supply means, the exhaust means, and the circulation flow rate adjusting means, and the control means has a necessary ventilation amount of the indoor air exhausted by the exhaust means at the pollen scattering timing. The exhaust means and the circulation flow rate adjusting means are controlled so as to exhaust the indoor air to the outside and guide the remaining indoor air to the circulation path, and substantially the same amount or more than the amount of the indoor air exhausted to the outdoors. Many The air supply means is controlled so as to supply the outside air, and in winter, the indoor air of the necessary ventilation amount is exhausted to the outdoors out of a small amount of indoor air than the pollen scattering time exhausted by the exhaust means, The exhaust means and the circulation flow rate adjusting means are controlled so as to guide the remaining room air to the circulation path, and the amount of the outside air is substantially the same as or smaller than the amount of room air exhausted to the outside. The air supply means is controlled so that, in the general period excluding the pollen scattering period and the winter season, a smaller amount of room air than the winter season exhausted by the exhaust means is exhausted directly to the outside without leading to the circulation path. , the construction, wherein the controller controls the air supply means so that the controls the evacuation unit and the circulation flow rate control means, to supply the outside air of the room air quantity substantially the same amount of exhaust to the outside Pollen removal system. 2. A pollen detection means for detecting the amount of pollen scattered outdoors, wherein the control means controls the air supply means, the exhaust means and the circulation flow rate adjustment means based on a detection signal from the pollen detection means. pollen removal system of the building. 3. An outside air temperature detecting means for detecting an outside air temperature is provided, and the control means controls the air supply means, the exhaust means and the circulation flow rate adjusting means based on a detection signal from the outside air temperature detecting means. pollen removal system of the building.

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