JPH03114511A - Air cleaner - Google Patents

Abstract

PURPOSE:To efficiently collect a bad odor, microorganisms, etc., by providing a water-moistened collecting filter on the downstream side of an ozonizer. CONSTITUTION:An air cleaner is provided with a water-moistened collecting filter 7 on the downstream side of an ozonizer 5. The air contaminated with odor, microorganisms, etc., between houses is sucked by the operation of a fan 4 through an air inlet 1 and then through the ozonizer 5 into the collecting filter 7. The odor, microorganisms, etc., are collected efficiency from the air through the collecting filter 7, since it is kept wet with the water fed from a water container 9 through a water feeder 8. On the other hand, the ozone produced by the ozonizer 5 and supplied into the filter 7 by the fan 4 effects a powerful deodorization and disinfection, when the odor and microorganisms are absorbed and dissociated by the water in the collecting filter 7 and collected thereby.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air purifying device for removing bad odors and sterilizing microorganisms such as bacteria in living spaces, or for use in air conditioners.

[Conventional technology]

Conventionally, air purifying devices for removing bad odors or sterilizing microorganisms such as bacteria have had an ozone generator, an ozone reaction chamber, an ozone decomposition filter, a rectifier plate, etc. arranged in a case equipped with an air supply hole and an exhaust hole. There is.

[Problem to be solved by the invention]

In the conventional apparatus, (1) the reaction between ozone, malodor, and microorganisms is carried out in the airflow within the apparatus, so the reaction time is short and deodorization and sterilization cannot be performed sufficiently.

(2) Sterilization of microorganisms by ozone has a weak sterilization effect when humidity is low, and requires a long time of 1 to several hundred minutes.

(3) Ozone is harmful to the human body, and there is no ozone at the exhaust vent.
It is necessary to keep it below 1 ppm, preferably below 0.02 ppm. For this reason, an ozone decomposition filter is used, but
Due to its decomposition performance, it is not possible to increase the ozone concentration within the device, making it impossible to sufficiently deodorize and sterilize.

There were problems such as.

The present invention aims to provide the conventional air cleaning device.

[Means to solve the problem]

The present invention provides an air purifying device that purifies air using ozone generated by an ozonizer, in which a moisture trapping filter using water is provided downstream of the ozonizer.

[Effect]

In the present invention, foul odors and microorganisms such as airborne bacteria, mold, and mites are captured from the air using a wet trapping filter using water. Because the filter remains moist with water, it tends to trap odors and microorganisms. Further, ozone generated by an ozonizer located on the upstream side of the air flow path is absorbed and dissociated by water in the filter to generate OH radicals with strong oxidizing power. These OH radicals have stronger deodorizing and sterilizing power than dry ozone, odors and microorganisms are captured by the filter, and they last a long time, making it possible to achieve a significant improvement in performance compared to conventional equipment. Further, since the decomposition rate of ozone is 20 to 30 times faster than gas phase ozone when dissolved in water, the water in the wet trap filter speeds up the decomposition and lowers the ozone concentration exiting the air cleaning device. Further, when an ozone decomposition catalyst is provided in the air purifying device, the decomposition catalyst is also simple and can render ozone harmless.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.

A ventilation tank 7 is located close to the exhaust hole 2 in the case 3, which has an air supply hole 1 from the living space and an exhaust hole 2 to the living space.
Air supply holes 1 to 7 are provided in the case 3. An ozonizer 5, a capture filter 7, and an ozone decomposition catalyst 6 are arranged in this order toward the tunnel 4. The capture filter 7
is connected to a water supply device 8 that supplies water from a water container 9 provided on the case 3 by capillary action or the like. The seven trapping filters are made of materials such as rayon and nonwoven fabric that have low pressure loss, high trapping efficiency, and high water retention ability.

In this embodiment configured as described above, air contaminated with odors, microorganisms, etc. from the living space is sucked in through the air supply hole 1 by the operation of the fan 4, and is sent to the trapping filter 7 through the ozonizer 5.

The trapping filter 7 is in a moist state by being supplied with water from the water container 9 via the water supply device 8, so that it absorbs odors and odors in the air.
Microorganisms etc. are efficiently collected.

On the other hand, ozone generated in the ozonizer 5 and flowing to the capture filter 7 due to the action of the filter 77 is absorbed and dissociated by the moisture in the capture filter 7 and generates OH radicals, etc., which have stronger oxidizing power than dry ozone, and are captured by the capture filter 7. Powerfully deodorizes and sterilizes odors and microorganisms. Moreover, at this time, since odors, microorganisms, etc. are captured by the capture filter,
This action time becomes longer. In this way, in this example, a significant performance improvement can be achieved compared to the case of using conventional dry ozone.

The air that passes through the trapping filter 7 and removes odors, microorganisms, etc. and contains residual ozone flows toward the ozone decomposition catalyst 6 on the downstream side, where the ozone in the air is decomposed, and then the air is released into the exhaust gas. It is discharged from hole 2 into the living space. As mentioned above, in this embodiment, the trapping filter 7 is in a wet state.
'5r Niosin passes through, but since the decomposition rate of ozone dissolved in water is 20 to 30 times faster than gas phase ozone, the ozone dissolved in water is quickly decomposed in the trapping filter 7, and therefore the same The amount of ozone that passes through the capture filter 7 and flows to the ozone decomposition catalyst 6 is significantly reduced. This results in 1
In this embodiment, the ozone decomposition catalyst 6 is made simple, and ozone can be made harmless even if the amount thereof is reduced.

As explained above, in this embodiment, odor, microorganisms, etc. are removed, ozone is rendered harmless, and purified air can be obtained through the exhaust hole 2.

As the ozonizer 5 used in this embodiment, various types such as a silent discharge type, an electrolytic type, an ultraviolet type, etc. can be used. Preferably, a type ozonizer is used. Further, various kinds of catalysts can be used as the ozone decomposition catalyst 6, but honeycomb activated carbon can be used because ozone is efficiently consumed and decomposed in the trapping filter 7 and the load is reduced.

Furthermore, the water container 9 may be provided inside the case, and instead of this, tap water or the like may be directly supplied to the capture filter 7.

Although the embodiment described above relates to an air purifying device that sucks air from a living space, purifies the air, and releases the air to a living space in Kugami, the present invention can also be incorporated into an air conditioner equipped with a heat exchanger. can.

〔Effect of the invention〕

The present invention is an air purifying device that efficiently collects bad odors, microorganisms, etc. using a moisture trapping filter using water, and then applies ozone from an ozonizer to the filter to extend the action time and sufficiently deodorize and sterilize the filter. It is possible,
In addition, by coexisting ozone and water, it has the ability to decompose bad odors.
Microbial killing power can be enhanced. Still further, by dissolving ozone in the water of the wet trap filter, the rate of ozone decomposition can be increased and residual ozone can be reduced.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an air cleaning device according to an embodiment of the present invention. 1...Air supply hole, 2...Exhaust hole, 3...Case, 4...Fan, 5...Ozonizer. 6... Ozone decomposition catalyst, 7... Trapping filter,・
...Water dispenser, ...Water container.

Claims (1)

[Claims] An air purifying device for purifying air with ozone generated by an ozonizer, characterized in that a moisture trapping filter using water is provided downstream of the ozonizer.