JPH0435667A - Air purification method - Google Patents

Abstract

PURPOSE:To sterilize the air as well as to decompose and remove substances to cause a bag smell in the air by decomposing the ozone after mixing the air and ozone, to make a sterilized, deodorized, and a high oxygen density of air, and mixing a perfume or the like when necessary. CONSTITUTION:Ozone can be made by leading in the oxygen from an oxygen cylinder, or the oxygen obtained by passing the external air through a filter 2 and through an oxygen condenser 3, to an ozone generating device 4. The air passing through the filter 2 is, together with the ozone, led in a reaction jar (chamber) 5, mixed and contacted, to carry out an ozone process. As a result, substances to cause a bag smell in the air are decomposed and deodorized. At the same time, verious germs in the air are sterilized by the sterilizing function of the ozone to obtain a germfree air. Since the air the ozone process is applied includes the ozone harmful to the human body, the air is led in to an ozone decomposing device 6 to decompose the ozone. The purified air is, after mixing a perfume component fed from a perfume feeding device 7 when necessary, returned to a room, a warehouse, or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air purification method, and more particularly to an air purification method that utilizes the oxidizing and sterilizing effects of ozone.

[Prior Art and Problems to be Solved by the Invention] Generally, methods for removing unpleasant odors in the air include deodorizing methods using activated carbon and masking methods using perfumes. However, the former method requires a large amount of activated carbon and has the problem that activated carbon alone cannot sterilize the air. Furthermore, the latter method does not eliminate the substance causing the unpleasant odor and is not an essential solution.

[Means to solve the problem]

Therefore, as a result of repeated studies in order to solve the above problems, the present inventors found that by utilizing the oxidizing and bactericidal effects of ozone,
The present invention was completed based on the discovery that it is possible to decompose and remove substances that cause unpleasant odors in the air, as well as to sterilize the air, as well as to decompose ozone and create air with a high oxygen concentration.

That is, the present invention provides an air purification method characterized by mixing air with ozone and then decomposing the ozone to create air that is sterile, deodorized, and has a high oxygen concentration, and adding fragrance or the like as necessary. It provides:

Ozone has strong oxidizing power and has the property of oxidizing and decomposing inorganic and organic substances. For example, with regard to organic substances, reactions that cleave carbon-carbon double bonds and aromatic rings are known ([
"New Technology for Ozone Utilization", Sanshobo, published in 1983, No. 6
(See page 8). In addition, ozone has a bactericidal effect, and
It has the property of decomposing and converting into oxygen in a short period of time.

The present invention utilizes these properties of ozone to decompose substances that cause unpleasant odors in the air indoors, inside warehouses, etc., such as methyl mercaptan, hydrogen sulfide, methyl sulfide, and methyl disulfide, and also to decompose the air. The air is sterilized and sterilized, and the ozone used in the ozone treatment is decomposed by appropriate means to create air with a high oxygen concentration.

The present invention will be explained below with reference to the drawings. FIG. 1 shows an embodiment of the method of the invention.

The air targeted by the present invention may be indoor air, exhaust air from the inside of the refrigerator 1, etc., or outside air 1', or may be a mixture of these air. The air that is targeted for purification is
Although it may be subjected to ozone treatment as it is, good effects can be obtained by preferably applying the method of the present invention after passing through a filter 2 to remove dust.

Ozone used in the present invention can be produced by introducing oxygen obtained from an oxygen cylinder or oxygen obtained by passing outside air that has passed through a filter 2 through an oxygen concentrator 3 into an ozone generator 4.

The air that has passed through the filter 2 is introduced into a reaction tank (chamber) 5 together with ozone, mixed and brought into contact to perform ozone treatment. As a result, substances that cause unpleasant odors in the air are decomposed and deodorized. At the same time, ozone's bactericidal action kills germs in the air, resulting in sterile air.

Note that the conditions for ozone treatment should be determined taking into account the degree of pollution of the air to be purified, but usually the ozone concentration in the reaction tank is between lθ and 50,000 ppm.
, preferably 10-3. Ozone is supplied so that it becomes OOOppm, and it is mixed with the air in the room or the warehouse in the reaction tank at 0.000ppm.
Sufficient contact may be achieved by residence for 5 to 30 minutes, preferably 0.5 to IO minutes.

Since the air subjected to the ozone treatment as described above contains ozone that is harmful to the human body, it is introduced into the ozone decomposition device 6 to decompose the ozone. Decomposition of ozone is easily performed by irradiation with ultraviolet rays, passing through activated carbon, an ozone decomposition catalyst, etc. As a result, ozone is converted to oxygen and included in the air, so the deodorized and sterilized air has a high oxygen concentration.

The air purified in this way may be returned to the room, the first compartment, etc., as it is, but if necessary, it may be mixed with aroma components supplied from the fragrance supply device 7 before being returned to the room, the first compartment, etc. .

The method of the invention can be carried out continuously, so indoors,
It is possible to constantly supply air that is deodorized, sterilized, and has a high oxygen concentration to the inside of the refrigerator, thereby maintaining a comfortable and clean environment.

〔Effect of the invention〕

According to the present invention, ozone decomposes unpleasant odors in the air.
At the same time, it can sterilize the air and increase the oxygen concentration in the air. Therefore, the environment can always be maintained in a comfortable and clean state.

[Brief explanation of drawings]

FIG. 1 shows one embodiment of the air purification method of the present invention.

Claims (2)

[Claims] (1) An air purification method characterized by mixing air with ozone and then decomposing the ozone to create air that is sterile, deodorized, and has a high oxygen concentration, and adding fragrance or the like as necessary. (2) The method according to claim 1, wherein the air mixed with ozone is exhaust air from a room, a warehouse, etc. or outside air, and the purified air is supplied to a room, a warehouse, etc.