JP2021177997A - Air purification device - Google Patents

Abstract

To purify air by positively sucking suspension in the air such as dust and dirt, burning them, and killing the bacteria or virus on the suspension.SOLUTION: An air purification device 1 sucks suspension in the air through an air intake 11 of a body 10 and burns them, and discharges the purified matter out of an air exhaust 12. The air purification device has a UV irradiation device 30 for irradiating the air taken through the air intake with ultraviolet rays, and a heating device 20 for burning the UV-irradiated suspension in the air. The heating device has heaters 21 opposite each other. The air to pass through the heating device is introduced through a first through hole 24a of a first substrate 22a provided with a first heater 21a and then discharged through a second through hole 24b of a second substrate 22b provided with a second heater 21b.SELECTED DRAWING: Figure 2

Description

The present invention relates to an air purification device that burns suspended matter (dust, dust, etc.) in the sucked air and discharges purified air.

Conventionally, as an air purifier, a method of capturing bacteria and viruses with a filter impregnated with catechin or the like and killing them by the bactericidal action of catechin has been used.
However, the air purifier using the filter has been troublesome due to continuous use, such as maintenance for clearing the clogging of the filter.
Further, in a waiting room of a hospital or a lobby of a long-term care facility, there is an example of air purification using a HEPA filter.
However, it cannot be said that this HEPA filter can sufficiently prevent nosocomial infections.
For example, Patent Document 1 describes an air conditioning system that removes and reduces pollutants contained in circulating air by using a HEPA filter or an adsorbent.

Japanese Unexamined Patent Publication No. 2004-226033

However, in the air conditioning system of Patent Document 1, it is difficult to catch bacteria and viruses in the air by the HEPA filter, and most of the bacteria and viruses are supplied to the room while being preserved in the recirculated air. Is a concern.
The present invention has been made in view of the above-mentioned problems, and pays attention to the fact that most of the bacteria and viruses existing in the air adhere to and float on suspended substances such as dust and dirt in the air. We provide an air purification device that can purify the air by actively sucking floating substances such as dust and dirt, heating and burning them, and killing bacteria and viruses adhering to the floating substances. The purpose is.

The air purification device of the present invention has the following features.
(1) Combusting suspended matter in the air sucked from the intake port provided in the main body,
It is an air purification device that exhausts air from the exhaust port.
An ultraviolet irradiation device for irradiating the air taken in from the intake port with ultraviolet rays,
A heating device for burning suspended matter in the air irradiated with ultraviolet rays, and
Is characterized by the provision of.
(2) In (1) above
The heating device is
The heaters are facing each other and are configured to face each other.
The air that passes through the heating device
It is introduced from the first through hole provided in the first substrate in which the first heater is arranged, and is introduced.
It is characterized in that it is configured to be derived from a second through hole provided in the second substrate on which the second heater is arranged.
(3) In the above (1) or (2),
It is characterized by being an air purification device having the main body in a horizontal shape.

The air purification device of the present invention purifies the air by actively sucking suspended matter such as dust and dirt in the air, heating and burning it, and killing bacteria and viruses adhering to the suspended matter. can do.

It is explanatory drawing which shows the appearance of the air purification apparatus of Embodiment 1 of this invention. It is a vertical sectional view which shows the internal structure of the air purification apparatus of Embodiment 1. FIG. It is a vertical sectional view which shows the structure of the heating apparatus of the air purification apparatus of Embodiment 1. FIG. It is a top view which shows the shape of the heating apparatus of Embodiment 1, (a) shows the arrangement of the heater arranged in the groove of the ceramic substrate, and (b) shows the through hole provided in the ceramic substrate. It is a perspective view which shows the appearance of the ultraviolet irradiation apparatus of the air purification apparatus of Embodiment 1. FIG. It is a vertical sectional view which shows the internal structure of the air purification apparatus of Embodiment 2.

Hereinafter, the air purification device of the present invention will be described.
<Embodiment 1>
FIG. 1 is an explanatory diagram showing the appearance of the air purification device according to the first embodiment of the present invention.
FIG. 2 is a vertical sectional view showing the internal structure of the air purification device of the first embodiment.
FIG. 3 is a vertical cross-sectional view showing the configuration of the heating device of the air purification device of the first embodiment.
FIG. 4 is a plan view showing the shape of the heating device of the first embodiment.
(A) shows the arrangement of the heater arranged in the groove of the ceramic substrate, and (b) shows the through hole provided in the ceramic substrate.

As shown in FIG. 1, the air purification device 1 of the first embodiment includes a stainless steel main body 10 having a vertically long rectangular parallelepiped shape and a fireproof coating.
The main body 10 is provided with an intake port 11 for taking in air from the outside into the air purification device 1 below the main body 10, and above the intake port 11 which has passed through the air purification device 1 to introduce the treated air to the outside. An exhaust port 12 for discharging air is provided.

<Heating device>
As shown in FIGS. 2, 3, and 4, the air purification device 1 is provided with a heating device 20 inside.
The heating device 20 is a device for heating the air taken in from the intake port 11.
For example, a so-called tabletop electric heating stove in which a nichrome wire coil (heater 21) is spirally wired in a groove 23 formed on a ceramic substrate 22 can be mentioned.
In the first embodiment, two heaters 21 having a power amount of 300 W / h are arranged facing each other to form a heating device 20.
As a result, the temperature of the heating space 25 formed by arranging the heaters 21 (21a, 21b) facing each other can be increased.
Further, the substrate 22 (22a, 22b) provided with the heater 21 is formed with a plurality of through holes 24 (24a, 24b) for allowing air to pass from the back to the front (or from the front to the back). There is.
In the first embodiment, the air passing through the heating device 20 is introduced from the first through hole 24a provided in the first substrate 22a in which the first heater 21a is arranged, and is provided in the second substrate 22b of the second heater 21b. It is configured to be derived from the second through hole 24b.
In the first embodiment, 34 through holes 24 having a diameter of 6 mm are formed in the first substrate 22a and the second substrate 22b, respectively, but the diameter and the number of the ventilation holes may be appropriately determined depending on the situation. can.

The substrate 22 is arranged in the center of the main body 10 in the vertical direction so that the disk-shaped circumference abuts on the inner wall of the main body 10.
The substrate 22 is provided with an electrode terminal for supplying electric power to the heater 21 so as to be connected to an external power source.
As a result, the passing air can be heated by applying a voltage to the electrode terminals and passing a current through the heater 21.

<Ultraviolet irradiation device 30>
Further, an ultraviolet irradiation device 30 is provided below the air purification device 1.
As a result, the air taken into the main body 10 from the intake port 13 can be sterilized.
Examples of the ultraviolet irradiation device 30 include a UV lamp 31.
In the first embodiment, three 15 W UV lamps are installed back to back around a central axis 33 formed in the vertical direction on the UV lamp cradle 32.

<Intake fan 40, exhaust fan 50>
An intake fan 40 for taking air into the main body 10 from the outside is attached below the main body 10.
Further, an exhaust fan 50 for discharging the treated air to the outside is attached above the main body 10.
In the air purification device 1 of the first embodiment ^{, the intake fan 40 and the exhaust fan 50 having an air volume of 150 m 3} / hour are attached below and above the main body 10, respectively, and external air is sucked up from the lower intake port 11 and processed. Is discharged from the upper exhaust port 12.

Next, the operation of the air purification device 1 configured as described above will be described.
When the power supply is connected to the air purification device 1 and turned on, the intake fan 40 rotates, and the air in the room where the air purification device 1 is installed is sucked from the intake port 11.
The air sucked from the intake port 11 is first sterilized by the ultraviolet irradiation device 30.
The sterilized air rises and is divided into narrow flow paths by the first through hole 24a provided in the first substrate 22a of the heating device 20 and introduced into the heating space 25.
At the time of this introduction, the air is branched into the narrow flow path (first through hole 24a), so that the air in the narrow flow path is directly exposed to the heat of the heater 21.
After that, the air in which the suspended matter such as dust and dirt is burned down in the heating space 25 is led out from the second through hole 24b provided in the second substrate 22b.
In this way, floating substances such as dust and dirt contained in the air passing through the through hole 24 can be efficiently burned out by directly contacting the heater 21.
In addition, bacteria and viruses can be killed by the passing air coming into direct contact with the heater.
Then, it is discharged to the outside from the exhaust port 12 by the exhaust fan 50.

<Embodiment 2>
FIG. 6 is a cross-sectional view showing the internal structure of the air purification device 2 of the second embodiment.
As shown in the figure, the air purification device 2 of the second embodiment is characterized in that the main body is designed to be horizontal so that it can be operated by suspending it from a ceiling or the like.
The air purification device 2 of the second embodiment is suspended from the ceiling so that air can be circulated laterally for use, and external air is sucked from the intake port 11 on the left side and discharged from the exhaust port 12 on the right side. It has become so.
Inside the main body 10, a heating device 20 similar to that of the first embodiment is provided.

The air purification device of the present invention purifies the air by actively sucking suspended substances such as dust and dirt in the air, heating and burning them, and killing bacteria and viruses adhering to the suspended substances. It can be installed in facilities such as hospitals, long-term care facilities, classrooms, and gymnasiums.

1, 2 Air purification device 10 Main body 11 Intake port 12 Exhaust port 20 Heating device 21 Heater 21a 1st heater 21b 2nd heater 22 Board 22a 1st board 22b 2nd board 23 Groove 24 Through hole 24a 1st through hole 24b 2nd Through hole 25 Heating space 30 Ultraviolet irradiation device 31 UV lamp 32 UV lamp cradle 33 Central axis 40 Intake fan 50 Exhaust fan

Claims (3)

By burning the suspended matter in the air sucked from the intake port provided in the main body,
It is an air purification device that exhausts air from the exhaust port.
An ultraviolet irradiation device for irradiating the air taken in from the intake port with ultraviolet rays,
A heating device for burning suspended matter in the air irradiated with ultraviolet rays, and
An air purification device characterized by the provision of. The heating device is
The heaters are facing each other and are configured to face each other.
The air that passes through the heating device
It is introduced from the first through hole provided in the first substrate in which the first heater is arranged, and is introduced.
The air purification device according to claim 1, wherein the air purification device is configured to be derived from a second through hole provided in the second substrate on which the second heater is arranged. The air purification device according to claim 1 or 2, wherein the main body is a horizontal type air purification device.

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