JP2009092260A - Air cleaning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air cleaning system capable of efficiently capturing and removing pollen and allergen particles which are apt to be deposited on an indoor floor surface and re-scattered. <P>SOLUTION: In this air cleaning system composed of a suction opening for sucking the indoor air, a supply opening for supplying the air sucked from the suction opening to a room again, a circulation flow channel communicating the suction opening and the supply opening, a dust removing means disposed on the way of the circulation flow channel for removing pollen and allergen particles included in the air sucked from the suction opening, and a blower for distributing the air from which pollen and allergen particles are removed, to the supply opening, and removing the indoor pollen and allergen particles, the suction opening is formed within a range of the height of lower 1/3 when the height of the room is divided into three, and the supply opening is formed similarly within a range of the height of upper 1/3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an air cleaning system that efficiently removes pollen and allergen particles in a room and supplies clean air to the entire room.

  As an air purifier, a blower and a filter are arranged inside the main body case, and the indoor air is sucked through the filter through the suction port provided in the main body case by driving the blower, and pollen and allergen contained in the indoor air A type in which particles are removed and purified air is discharged from an outlet is generally known.

  However, such an air cleaner has a problem that pollen and allergen particles deposited and re-scattered near the floor surface of the room are not efficiently collected.

  An object of the present invention is to provide an air cleaning system that efficiently collects and removes pollen and allergen particles that easily deposit and re-scatter on an indoor floor surface.

  In order to solve the above-described problem, in the air cleaning system described in claim 1, an air inlet for sucking in indoor air, an air outlet for supplying air sucked from the air inlet again into the room, A circulation channel that communicates the suction port and the air outlet, and a dust removing unit that is disposed in the middle of the circulation channel and removes pollen and allergen particles contained in the air sucked from the suction port; An air cleaning system for removing pollen and allergen particles in a room consisting of a blower to send air from which pollen and allergen particles have been removed to the air outlet, wherein the suction port divides the indoor height into three parts In this case, the air outlet is arranged in the lower 1/3 height range, and the outlet is also arranged in the upper 1/3 height range.

  The invention according to claim 2 is the air purification system according to claim 1, further comprising an air shower outside the indoor entrance.

  The invention according to claim 3 is the air purification system according to claim 1 or 2, wherein the dust removing means is a filter dust collector, an electrostatic dust collector, or a filter dust collector and an electrostatic type. It was set as the structure which is based on either of the apparatuses which combined the dust collector.

  The invention according to claim 4 is the air purification system according to any one of claims 1 to 3, wherein an outside air inlet is further provided on the upstream side of the dust removing means of the circulation channel. It was.

  Furthermore, the invention according to claim 5 is the air purification system according to any one of claims 1 to 4, further comprising a pressurizing device for maintaining the pressure in the room higher than the outside air pressure. The configuration.

  According to the present invention, the suction port is arranged in the lower 1/3 height range when the indoor height is divided into three, and the outlet is similarly arranged in the upper 1/3 height range. The air flow from the top to the bottom of the room is induced to efficiently collect pollen and allergen particles that tend to stay in the vicinity of the floor, and air from which pollen and allergen particles have been removed by dust removing means. By supplying to the entire room, a comfortable space environment with high indoor air cleanliness can be realized.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

FIG. 1 shows an air cleaning system 1 according to the first embodiment.
As shown in FIG. 1, the air cleaning system 1 mainly includes a suction port 11, an air outlet 12, a return air duct 13 (circulation flow path), an air supply duct 14 (circulation flow path), and an air purifier body 17. Has been. The air purifier main body 17 includes a dust removing device 15 (dust removing means) and a blower 16.

  The suction port 11 is an opening for sucking indoor air, and is arranged in a lower 1/3 height range obtained by dividing the floor surface or the indoor height into three. The air outlet 12 is an opening for blowing out clean air from which pollen and allergen particles have been removed by the air purifier main body 17, and is arranged in the upper 1/3 height range obtained by dividing the height of the ceiling surface or the room into three. The return air duct 13 connects the suction port 11 and the air purifier main body 17 and sends indoor air to the air purifier main body 17. The air supply duct 14 connects the air outlet 12 and the air purifier main body 17 and sends clean air from which pollen and allergen particles have been removed by the air purifier main body 17 to the air outlet. Here, the return air duct 13 and the air supply duct 14 are collectively referred to as a circulation flow path. The dust removing device 15 (dust removing means) is a device for removing pollen and allergen particles, and includes a filter type dust collecting device or an electrostatic dust collecting device, or a filter type dust collecting device and an electrostatic dust collecting device. It is a combination. The blower 16 mainly includes a blower fan and a fan motor (not shown). The fan motor drives the blower fan, and an air flow is generated. This blower fan delivers clean air into the room via the air supply duct 14.

  The air purifying system 1 according to the present invention arranges the suction port 11 in the lower 1/3 height range obtained by dividing the floor surface or the height of the room into three, so that pollen, allergen particles, etc. that are likely to stay in the vicinity of the floor surface. Efficiently collects relatively large particles. Moreover, even when pollen and allergen particles deposited on the floor surface re-scatter due to human traffic, the air cleanliness in the room can always be kept high by sucking in quickly.

  In addition, by arranging the air outlet 12 in the upper 1/3 height range obtained by dividing the ceiling surface or the height of the room into three, a flow of clean air is generated from the vicinity of the ceiling surface to the vicinity of the floor surface. Air is supplied to the entire room. In addition, pollen and allergen particles floating in the room are caused to flow in the direction of the suction port 11 by forming an air flow from the vicinity of the ceiling surface to the vicinity of the floor surface.

  Further, it is desirable that the number and arrangement of the air inlets 11 and the air outlets 12 are determined according to the size and shape of the room and are arranged uniformly.

  Further, the type of the outlet is preferably one that diffuses and mixes the air in the entire room, such as an anemo diffuser or a VHS resistor.

  The inner surfaces of the return air duct 13 and the air supply duct 14 are preferably made of a metal material such as a galvanized iron plate or an organic resin such as vinyl chloride that hardly generates dust from the material itself.

  Further, it is desirable to use a dust removing device 15 having a performance equal to or higher than that of a medium performance filter (having a collection rate of 90% or more according to the colorimetric method of JIS B 9908). In addition, if it has a performance higher than that of a HEPA filter (capturing particles of 0.3 μm or more with an efficiency of 99.97% or more), it will be several μm or less called an orbicle attached to the outer surface of the pollen. Fine particles can also be removed, which is more desirable.

  The amount of air blown by the blower 16 per hour is preferably at least five times the indoor air volume (indoor floor area x height). At this time, the clearance with the outside and the indoor ventilation amount are adjusted so that the amount of air flowing into the room from the part in contact with the outside, such as a door or window, is 0.5 times or less of the indoor volume. As a result, pollen and allergen particles contained in the air entering from the outside are mixed and diluted with clean air in the room, and the pollen and allergen particles are further mixed and diluted by the dust removing device 15 incorporated in the air cleaner body 17. By removing it, the indoor air cleanliness is kept high.

  FIG. 2 is an air cleaning system showing another embodiment of the present invention. The difference between the air cleaning system 2 and FIG. 1 is that an air shower 18 is added to the outside of the room entrance to the air cleaning system of FIG. As a result, pollen and allergen particles adhering to the human body and articles brought in when entering the room from outside are removed to prevent pollen from entering the room from the outside.

  Further, the air shower 18 is provided at a place where it enters the room from the outside, and is composed of an outdoor door, a front room, and an indoor door. When the outdoor door is open, the indoor door is provided. Has a function that does not open.

  In addition, the front room of the air shower shall have an air outlet, an air inlet, and a dust removing device, and the person or object entering the room in the front room is attached to the surface of the person or object by blowing high-speed air from the air outlet. The blown pollen and allergen particles are blown off, and the blown off pollen and allergen particles are sucked in through the suction port. The sucked air is blown out from the outlet again after removing pollen and allergen particles by a dust removing device.

  FIG. 3 shows an air cleaning system according to another embodiment of the present invention. The difference between the air cleaning system 3 and FIG. 1 is that an outside air duct 19, an outside air intake port 20, and an outside air dust removing device 21 are added to the air cleaning system of FIG. As a result, pollen and allergens in the room are removed in order to remove pollen and allergen particles contained in the air flowing into the room from outside by the dust removing unit 15 incorporated in the outside air dust removing unit 21 and the air purifier main body 17. Prevents intrusion of particles.

  The outside air duct 20 is preferably made of a metal material such as a zinc iron plate or an organic resin such as vinyl chloride that hardly generates dust from the material itself.

  Moreover, it is desirable to use a dust removal device for outside air having a performance higher than that of a coarse dust filter (having a collection rate of 90% or more by the weight method of JISB 9908).

  FIG. 4 is an air cleaning system showing another embodiment of the present invention. The difference between the air cleaning system 4 and FIG. 3 is that a differential pressure detector 22, a differential pressure adjuster 23, and an inverter 24 are added. In FIG. 4, the differential pressure detector 22 detects the indoor and outdoor differential pressures, and the frequency of the inverter 24 is changed so that the differential pressure detected by the differential pressure regulator 23 becomes the set differential pressure. Control so that the differential pressure is always constant. As a result, the room can always be set to have a positive pressure with respect to the outdoors, and in order to prevent outside air from entering the room, pollen and allergen particles are prevented from entering the room.

  If an exhaust fan is installed, an inverter is also installed in the exhaust fan, and the differential pressure regulator 23 controls the blower 16 and the exhaust fan so that the differential pressure detected by the differential pressure detector 22 becomes the set differential pressure. The frequency of the inverter 24 is changed. The frequency of the inverter 24 can also be set so that the amount of outside air taken in by the blower is always greater than the amount of room exhausted by the exhaust fan.

  In addition, there is a method of maintaining a pressure outside the room by installing a differential pressure damper. This is to adjust the weight of the differential pressure damper so that the outside air intake amount by the blower 16 is larger than the exhaust amount flowing from the room to the outside, and the indoor pressure is always higher than the outdoor pressure.

表1は、室内における空気清浄システム運転前後での粉塵濃度と除去率を表した表である。 The test results for confirming the advantages of the present invention will be described below.
Table 1 shows the fluctuation and removal rate of the indoor dust concentration when the suction port 11 is installed in the 1/3 range below the wall surface and the outlet 12 is installed in the 1/3 range above the ceiling surface or wall surface. When the air outlets 12 were installed on the ceiling surface (indicated as “ceiling air outlet” in the table), the four air outlets 12 were evenly arranged on the ceiling surface. Moreover, when the blower outlet 12 was arrange | positioned on the wall surface (displayed as "wall blowout" in the table | surface), the one blower outlet 12 was installed in the wall surface. The inner surfaces of the return air duct 13 and the air supply duct 14 are made of a polyester nonwoven fabric and a polypropylene nonwoven fabric adhered to the surface. Moreover, the dust removal apparatus used what collects the particle | grains more than 0.3 micrometer with the efficiency of 9997% or more. Moreover, the air flow rate per hour of the blower 16 was set to 5 times the indoor air volume. As can be seen from Table 1, by installing the suction port 11 and the air outlet 12 under the conditions according to the present invention, 99% or more of the particles of 10 μm or more, which is the size of pollen or allergen particles, are removed. It could be confirmed.

Table 1 is a table showing the dust concentration and the removal rate before and after the indoor air purification system operation.

  The air purification system of the present invention can be used to provide a comfortable environment for people who show allergic reactions to pollen and allergen particles by realizing a space with very few pollen and allergen particles.

  In addition, from Table 1, since particles of 1 μm or more are removed by 80% or more, the present invention is also applicable to providing a comfortable environment for people having respiratory diseases such as asthma. Such an air purification system can be utilized.

1 is a schematic diagram of an air cleaning system according to Embodiment 1. FIG. It is the schematic of the air purifying system which concerns on Example 2. FIG. It is the schematic of the air purifying system which concerns on Example 3. FIG. It is the schematic of the air purifying system which concerns on Example 4. FIG.

Explanation of symbols

1, 2, 3, 4 Air purification system 5 Outdoor 6 Indoor 11 Intake port 12 Outlet 13 Return air duct 14 Air supply duct 15 Dust removal device 16 Blower 17 Air purifier 18 Air shower 19 Outside air intake 20 Outside air duct 21 Outside air Dust remover 22 Differential pressure detector 23 Differential pressure regulator 24 Inverter

Claims (5)

  An air inlet for sucking in indoor air, an air outlet for supplying air sucked from the air inlet again into the room, a circulation channel communicating the air inlet and the air outlet, Dust removing means for removing pollen and allergen particles contained in the air sucked from the suction port disposed in the middle, and a blower for sending air from which pollen and allergen particles have been removed to the outlet It is an air purification system for removing pollen and allergen particles in the room, wherein the suction port is arranged in the lower 1/3 height range when the indoor height is divided into three, and the outlet is also the same An air cleaning system characterized by being arranged in the upper 1/3 height range.   2. The air purification system according to claim 1, further comprising an air shower outside the indoor entrance.   3. The air cleaning system according to claim 1, wherein the dust removing means is a filter dust collector, an electrostatic dust collector, or a combination of a filter dust collector and an electrostatic dust collector. An air purifying system characterized by being based on any one of the devices.   4. The air purification system according to claim 1, further comprising an outside air inlet provided on the upstream side of the dust removing means in the circulation channel.   5. The air cleaning system according to claim 1, further comprising a pressurizing device for maintaining the indoor pressure higher than the external air pressure.

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