JP3890435B2 - Air purifier - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air cleaning device. More specifically, the present invention relates to an air cleaning device for removing various unnecessary substances in the air.
[0002]
[Prior art]
Conventionally, as an air cleaning device that cleans indoor air in homes, offices, factories, etc., air is passed through a filter made of synthetic fiber to remove airborne substances such as dust, cigarette smoke and oil. There is known an air purifying apparatus.
[0003]
However, the air cleaning device having such a configuration (hereinafter referred to as a conventional device) can remove airborne suspended matters larger than the filter eyes, but effectively removes suspended matters smaller than the filter eyes. I can't do it. Moreover, there is a problem that gaseous harmful components cannot be removed at all.
[0004]
In general, the air cleaning device needs to perform maintenance for periodically cleaning or replacing the filter. However, in the conventional apparatus, it is difficult to prevent dust and the like from being scattered at the time of cleaning and replacement of the filter, so that maintenance is not so easy, and rather, it is usually rather complicated work.
[0005]
For this reason, it is conceived and implemented that the filter is accommodated in the cassette and is replaced with a cartridge type that replaces the filter. However, even in this case, it is difficult to completely prevent scattering of dust and the like, and there is a problem that the unit price of the filter becomes high and the cost increases.
[0006]
Therefore, although not yet publicly known, the present applicant intends to clean the air with water for the purpose of providing an air cleaning device that is easy and easy to maintain and can clean the air at low cost. An air cleaning device (Japanese Patent Application No. 2002-292701) is proposed.
[0007]
As shown in FIGS. 3 and 4, the air cleaning apparatus 100 proposed above is a target to be cleaned by a fan 102 at a lower part of a purified water tank 101 containing water or a cleaning liquid W ′ mixed with a sterilizing agent in water. The air to be fed is made into bubbles by the bubble generator 103, and the bubbles are washed by meandering left and right by a predetermined number of baffles 104 while raising the cleaning liquid, thereby causing harmful effects in the air. Alternatively, it is possible to reliably remove unnecessary suspended matters and components regardless of the size of the particles.
[0008]
However, in the air cleaning device 100 having such a configuration, it is necessary to make the volume of the water tank 101 larger than a certain level in order to ensure a sufficient cleaning effect, and there is another problem that it is difficult to reduce the size of the device. Has occurred. Therefore, there is also a problem that it is impossible to use in a general household.
[0009]
[Problems to be solved by the invention]
The present invention has been made in view of such a problem, is easy to maintain, can reliably remove harmful or unnecessary suspended matters and components in the air, and is miniaturized and can be used without difficulty in ordinary homes. An object of the present invention is to provide an air purifier that can be used.
[0010]
[Means for Solving the Problems]
The air cleaning device of the present invention comprises a cleaning container in the form of a vertically long box , an air blowing means, a cleaning liquid circulation mechanism and a control means,
The cleaning container includes a bottom surface having a downward slope, an air intake port provided in a lower portion for taking in target air from the air blowing means, and an upper portion on the opposite side of the air intake port for sending out the cleaned air. distribution to form an air delivery port which is provided comprises a draining sheet, the cleaning chamber of the target air communicating portion as going have electrically to said air outlet while meandering arranged alternately left and right vertical hierarchical structure A required number of partition plates installed ,
The partition plate is inclined downward toward the communication portion, and its tip is bent downward with a predetermined width,
The cleaning liquid circulation mechanism, the cleaning liquid reservoir in which the washing liquid from the bottom the bottom is provided to sump of the washing vessel, the washing water spraying means provided comprises a back plate near said air outlet and The cleaning water sprayer provided on the back of the tip portion bent at a predetermined width downward, and the cleaning liquid circulation means for supplying the cleaning liquid stored in the cleaning liquid reservoir to the cleaning water injection means,
Wherein said control means comprises an air contamination sensor, and characterized in that is intended to control the operation and non-operation of the blower unit and the cleaning liquid circulation means based on the output signal of the air contamination sensor.
[0011]
In the air purification apparatus of this invention, it is preferable to provide the washing | cleaning liquid exchange mechanism.
[0013]
In the air cleaning device of the present invention, it is preferable that the draining sheet includes a substance that releases negative ions .
[0014]
[Action]
Since the air purifying apparatus of the present invention is configured as described above, it is possible to reliably remove harmful components in the air despite easy maintenance.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, although the present invention is explained based on an embodiment, referring to an accompanying drawing, the present invention is not limited only to this embodiment.
[0016]
Embodiment 1
FIG. 1 schematically shows an air cleaning apparatus (hereinafter simply referred to as an apparatus) A according to Embodiment 1 of the present invention.
[0017]
Device A removes harmful and unnecessary particulate suspended matters such as dust in the air, cigarette smoke and fat, various dusts and pollen that induce allergies, as well as toxic components and building materials in tobacco smoke It is a device that cleans and cleans the air to remove harmful components such as formaldehyde released from the air.
[0018]
Specifically, the apparatus A pours a shower W of a cleaning liquid (water or a mixed liquid obtained by mixing a sterilizing agent or a fragrance into water) into room air to be cleaned (hereinafter referred to as target air). The cleaning container 1 made of, for example, stainless steel or synthetic resin, the blower (blower unit) 2 for sending the target air into the cleaning container 1, and the cleaning liquid after the air cleaning are collected and used as the shower W again. The cleaning liquid circulation mechanism 3 that circulates in this manner, the cleaning liquid replacement mechanism 4 that replaces the cleaning liquid that has been cleaned by cleaning the target air with a new cleaning liquid by gradually discarding it, and harmful substances and harmful components (hereinafter referred to as harmful components) And an operation controller (control means) 5 for detecting the amount (concentration) of indoor air in the room air and controlling switching of the operation and non-operation of the blower 2 in accordance with the detection result. Ete made.
[0019]
The cleaning container 1 is in the shape of a vertically long box with a wide front and back, and the air sent from the air intake port 11 at the bottom of the container by the blower 2 to the inside is washed while meandering in the left-right direction. The interior is formed by partition plates 15, 15, etc. so as to form upper and lower hierarchical cleaning chambers 14, 14,. It shall be partitioned.
[0020]
Here, immediately before the opening of the air outlet 12, a draining sheet 12 a made of, for example, a nonwoven fabric for separating droplets in the air sent from the air outlet 12 is provided. Further, the draining sheet 12a may contain a substance that releases negative ions, such as Bincho charcoal.
[0021]
The partition plate 15 is made of a substantially rectangular stainless steel or synthetic resin plate whose three sides are joined to one side inner wall, front inner wall, and rear inner wall of the cleaning container 1, and the remaining one side and the cleaning container 1 A gap with the other side wall forms the communicating portion 13. Further, the partition plate 15 is inclined downward toward the communication portion 13 so that the showered cleaning liquid flows along the upper surface to the communication portion 13, and its tip portion is directed downward. The back plate 15a of the shower 24, which will be described later, is bent to a predetermined width.
[0022]
Further, to the liquid collection to the bottom surface 1a of the cleaning vessel 1 also has flowed from above the cleaning liquid to the cleaning liquid reservoir 21 to infra, it is those downward slope is attached towards the cleaning liquid reservoir 21.
[0023]
The blower 2 is a fan, for example, and sends the target air into the cleaning container 1 through the air intake 11. The target air sent into the cleaning container 1 passes through the cleaning chambers 14, 14,... Here, the blower 2 is preferably disposed above the air intake port 11 so that the cleaning liquid is not submerged.
[0024]
The cleaning liquid circulation mechanism 3 includes a cleaning liquid reservoir (hereinafter referred to as a reservoir) 21 provided at the lowermost part of the cleaning container 1 so as to store the cleaning liquid after air cleaning, and a cleaning liquid supply pipe ( Hereinafter, a feed pump (cleaning liquid circulating means) 23 that feeds the cleaning chamber 14 through the feed pipe 22), and a feed pipe that is arranged on the outlet side (upper side) of each cleaning chamber 14 near the communicating portion 13. And a shower unit (cleaning liquid ejecting means) 24 that discharges the cleaning liquid fed via the shower 22 as a shower W.
[0025]
More specifically, as shown in FIG. 1, the showers 24,... Are arranged with the back plate 15a on the back below the front end of the partition plate 15 except for the shower 24 located at the uppermost stage. An injection hole (not shown) is disposed with the back plate 15a as the back, and branch pipes 22a, 22b, 22c, and 22d from the supply pipe 22 are connected to the showers 24,. By providing the back plate 15a on the back surface of the shower 24, ..., a short path of the target air is avoided and the target air is reliably cleaned.
[0026]
On the other hand, the distal end portion 22e of the supply pipe 22 is connected to the shower 24 located at the uppermost stage. A back plate 16 is also disposed on the back surface of the shower unit 24 located at the uppermost stage. By providing the back plate 16 on the back surface of the shower unit 24, a short path of the target air is avoided and the target air is reliably cleaned.
[0027]
The cleaning liquid exchanging mechanism 4 detects a liquid level in the reservoir 21, for example, a liquid level detector 41 using a float 41a, and a liquid level detected by the liquid level detector 41 is a predetermined liquid level (hereinafter referred to as a water injection standard). When the water level falls below the liquid level, the water injection unit 42 injects water so as to add a new cleaning liquid (water), and the liquid level in the reservoir 21 exceeds a predetermined liquid level (hereinafter referred to as a drainage reference liquid level). And a drainage part 43 for draining the cleaning liquid so as to overflow. Here, the drainage reference liquid level is higher than the water injection reference liquid level.
[0028]
The operation controller (control means) 5 outputs an air contamination sensor 5a that outputs a signal corresponding to the amount (concentration) of the predetermined substance in the air, and the amount of the predetermined substance detected based on the output signal of the air contamination sensor 5a ( A control switch (not shown) is configured to supply driving power to the blower 2 and the pump 23 when the concentration (concentration) is equal to or higher than a predetermined value, and to stop supplying power when the amount (concentration) of the predetermined substance falls below the predetermined value. Is to be switched.
[0029]
Therefore, the device A configured as described above operates as follows.
[0030]
(1) When the operation controller 5 detects that the amount (concentration) of the predetermined substance in the air is equal to or greater than the predetermined value, the blower 2 and the pump 23 are activated. Thus, the shower of the cleaning liquid and the blowing of room air into the cleaning container 1 are started.
[0031]
(2) The target air blown into the cleaning container 1 meanders left and right in the cleaning container 1 while being cleaned by the shower W of the cleaning liquid and the water curtain F formed by the cleaning liquid falling from the tip of the partition plate 15. In this way, the air passes through each cleaning chamber 14, is sent to the air outlet 12, and is supplied into the room.
[0032]
(3) When the liquid level in the reservoir 21 falls below the water injection reference liquid level due to the operation of the pump 23, a new cleaning liquid (water) is injected by the water injection unit 42, whereby the liquid level in the reservoir 21 is adjusted to the water injection standard. Keep the liquid level.
[0033]
(4) The cleaning liquid after air cleaning is collected in the reservoir 21 and the liquid level rises. If the liquid level exceeds the drainage reference liquid level, the cleaning liquid in the upper layer in the reservoir 21 overflows from the drainage part 43, and the liquid level is the drainage reference liquid. Kept in place.
[0034]
(5) When the operation controller 5 detects that the amount (concentration) of the predetermined substance in the air is below the predetermined value, the blower 2 and the pump 23 are stopped. Thereby, blowing of the cleaning liquid shower W and the indoor air into the cleaning container 1 is stopped.
[0035]
(6) Until the collection of the cleaning liquid after air cleaning is completed, the cleaning liquid in excess of the drainage reference liquid level is drained through the drainage section 43.
[0036]
As described above, according to the first embodiment, the target air is cleaned by the cleaning liquid shower W and the water curtain F. Therefore, while the cleaning container 1 is a container having a relatively small volume, harmful or unnecessary floating substances in the air or It is possible to perform cleaning so as to reliably remove the components regardless of the size of the particles. Further, since the apparatus A has the above-described configuration, the maintenance is facilitated and the apparatus A can be easily downsized. For example, the apparatus A can be applied as an air cleaner for general households.
[0037]
Embodiment 2
An air cleaning apparatus (hereinafter simply referred to as an apparatus) A1 according to Embodiment 2 of the present invention is schematically shown in FIG.
[0038]
The device A1 is obtained by simplifying the device A, and the shower device 24 is provided only at the uppermost stage. The remaining configuration, operation, and effects of the device A1 are the same as those of the device A.
[0039]
As described above, according to the second embodiment, indoor air can be purified as in the first embodiment, and the apparatus can be reduced in weight and cost, and can be further applied as an air cleaner for general households. It becomes easy.
[0040]
As described above, the present invention has been described based on the embodiments. However, the application of the present invention is not limited to ordinary households. For example, underground parking lots, tunnels and other facilities that are difficult to ventilate, semiconductor manufacturing facilities, and various types. Installed in facilities requiring high air cleanliness such as precision factories, facilities with high air pollution such as private houses and pachinko parlors along main roads, and facilities where clean air is desired such as hospitals, museums, and schools As an air cleaning device, it can be applied to clean the air inside these facilities, and when cleaning the air sent to various facilities, for example, in the air intake part of the air conditioning equipment of an office building, It is also possible to apply when purifying the air sent into the interior.
[0041]
Also, when purifying air released from a specific facility to the outside, for example, when purifying exhaust gas released into the atmosphere at the final stage of exhaust gas purification treatment at a waste incineration facility Is also possible.
[0042]
【The invention's effect】
As described above in detail, the air cleaning device of the present invention has an excellent effect that harmful components in the air can be surely removed in spite of easy maintenance.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a configuration of an air cleaning device according to a first embodiment of the present invention.
FIG. 2 is a schematic diagram showing a configuration of an air cleaning device according to a second embodiment of the present invention.
FIG. 3 is a schematic diagram showing a configuration of an air cleaning device according to Japanese Patent Application No. 2002-292701.
FIG. 4 is a schematic diagram showing a configuration of a washing water tank of the air cleaning device.
[Explanation of symbols]
A Air purifier F Water curtain W Cleaning liquid shower 1 Cleaning container 2 Blower (blower means)
3 Cleaning liquid circulation mechanism 4 Cleaning liquid replacement mechanism 5 Operation controller 5a Air dirt sensor 12a Draining sheet 13 Communication section 14 Cleaning chamber 15 Partition plate 15a Rear panel 16 Rear panel 21 Cleaning liquid reservoir 23 Pumping pump 41 Liquid level detector 42 Water injection section 43 Drainage section

Claims (3)

A cleaning container in the form of a vertically long box , a blower means, a cleaning liquid circulation mechanism and a control means,
The cleaning container includes a bottom surface having a downward slope, an air intake port provided in a lower portion that takes in target air from the air blowing means, and an upper portion on the opposite side of the air intake port that sends out the cleaned air. distribution to form an air delivery port which is provided comprises a draining sheet, the cleaning chamber of the target air communicating portion as going have electrically to said air outlet while meandering arranged alternately left and right vertical hierarchical structure A required number of partition plates installed ,
The partition plate is inclined downward toward the communication portion, and its tip is bent downward with a predetermined width,
The cleaning liquid circulation mechanism includes a cleaning liquid reservoir provided to collect the cleaning liquid from the bottom surface at the lowermost part of the cleaning container, a cleaning water jetting means provided with a back plate in the vicinity of the air delivery port, and A cleaning water sprayer provided on the back of the tip portion bent at a predetermined width downward, and the cleaning liquid circulation means for supplying the cleaning liquid stored in the cleaning liquid reservoir to the cleaning water spray means;
Wherein said control means comprises an air contamination sensor, the air blowing means and operation and air cleaning apparatus characterized by comprising been intended to control the non-operation of the washing liquid circulation means based on the output signal of the air contamination sensor .   The air cleaning apparatus according to claim 1, further comprising a cleaning liquid exchange mechanism. The air cleaning apparatus according to claim 1 , wherein the draining sheet includes a substance that releases negative ions .

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