JPH06102083B2 - Indoor air purifier using hydroxyl ion gas - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor air purifier using a hydroxyl ion gas.

[0002]

2. Description of the Related Art Ozone generators have been used for a long time, as is known from Jimens's ozone tube, etc., and silent generation method, electrolysis method, photochemical method, high frequency method are currently used for ozone generation. The radiation irradiation method and the like are used.

Of these, the silent discharge ozone generator is
As is well known, a dielectric (insulator) such as glass or ceramics is sandwiched between a pair of electrodes (applying electrode and induction electrode), and an oxygen-containing gas (air) is flown between the electrodes to generate a voltage of 6 to 18 KV. This is a device in which ozone is generated on the downstream side when an AC high voltage is applied. There are various factors that influence the ozone generation, and, for example, the oxygen concentration and the coexistence of water vapor have a great influence.

For example, the coexistence of water vapor in a silent discharge ozone generator has a very bad influence on the ozone yield, as is well known. Therefore, for ozone generation, a dry gas having a dew point of −50 ° C. or lower is used as a raw material.

By the way, ozone obtained by such an ozone generator has a strong oxidizing power (oxidation potential of 2.
It is widely used for the purpose of sterilization, decolorization, deodorization, etc. by utilizing its instantaneous reactivity and the property of returning to harmless oxygen after decomposition.

For example, ozone is used in an indoor air purifier (for example, Japanese Patent Application Laid-Open No. 60-25524, Japanese Patent Publication No. 63-28622, Japanese Patent Publication No. 64-4786, and Japanese Patent Publication No. 2-29365). Publication, Japanese Patent Publication No. 3-709
No. 74, etc.), but especially Japanese Patent Publication No. 3-709.
According to Japanese Patent Laid-Open No. 74, there is proposed a method in which an ozone generator and a humidifier are installed in parallel, and ozone and water vapor are blown out from the respective outlets to cause them to react in a room to enhance the sterilizing effect of ozone.

However, in such a proposal, when the silent discharge ozone generator is used as described above, the coexistence of water vapor has a serious adverse effect on the ozone yield, and the room air containing water vapor cannot be circulated as it is. Moreover, if one tries to utilize ozone and water vapor in the room to utilize the sterilizing power of hydroxy radicals (OH ⁻ ),
There was a problem that the reaction speed was slow.

On the other hand, the present inventor succeeded in producing a hydroxy radical (OH ⁻ ) having a high sterilizing power, that is, a hydroxyl ion, by using a silent discharge type ozone device under humidification.

That is, in the conventional general silent discharge type ozone generator, the dielectric such as glass was installed only on the side of the application electrode, but as shown in FIG. A dielectric (for example, uranium glass) 3 and 3 is installed on each of the electrodes 2 to wrap the electrodes 1 and 2, and a streamer discharge 4 is generated on both side surfaces of the dielectrics 3 and 3. succeeded in.

Therefore, if such an ozone generator is installed under humidification, both electrodes 1 and 2 will have the dielectric 3 and the dielectric 3, respectively.
Since it is surrounded by 3, the streamer discharge 4 is possible, and under such humidification, air and mist-like water droplets are dispersed and scattered, so that O ₂ in the gas is dissociated into O + O, ₂ and O ⁻ combine to generate O ₃ gas. This O
_{The three} gases are immediately combined with mist H ₂ O, and O ⁻ , H
It produces four types of active oxygen ^: O ₂ , OH ⁻ , and H ₂ O ₂ .
Among these, the hydroxy radical (OH ⁻ ) that is the final product and exerts an oxidizing power has a redox potential (oxidation potential 2.80 V) higher than that of ozone molecules.

Therefore, the present invention is intended to solve the above-mentioned problems of the proposal as disclosed in Japanese Patent Publication No. 63-28622, based on the knowledge of the generation of hydroxyl ions.

[0012]

SUMMARY OF THE INVENTION The gist of the present invention is that 1) a pair of an applying electrode and an inducing electrode are respectively wrapped with a dielectric material, and a high voltage is applied to the applying electrode so that a high voltage is applied between the electrodes In an indoor air cleaner using a hydroxyl ion gas, which is characterized in that an ozone generator for generating a streamer discharge is provided in a humidified air circulation duct for circulating humidified air by a fan to generate a hydroxyl ion gas. Yes 2) The hydroxyl group according to claim 1, wherein the pre-filter and the moistened humidifying filter are arranged concentrically, a fan is provided in the humidifying filter, and the downstream side of the fan is a humidified air circulation duct. The indoor air purifier using ion gas, 3) The indoor air purifier using hydroxyl ion gas according to claim 1, wherein the humidified air circulation duct is formed in a flowerpot for artificial plants, and 4) addition. The air distribution duct, inlet downwards,
The indoor air purifier using the hydroxyl ion gas according to claim 1, wherein the indoor air purifier is formed inside a box having an outlet port at the upper side.

[0013]

The present invention will be described in detail with reference to the embodiments shown in the accompanying drawings. FIG. 1 is a sectional view of an essential part of an embodiment of the present invention. This embodiment is suitable for a flower pot in which artificial foliage plants are erected, and the flower pot 10 has a height of about 29 ^cm and a diameter of about 20 ^cm .

First, the outline of the flower pot 10 will be described.
The flowerpot main body 11 is made of deodorant plastic, and a water chamber 12 is formed inside thereof. This flowerpot body 11
Is covered with a lid 14 having an outlet 13. The lid 14 is formed in a shallow dish shape, and an artificial foliage plant 15 is fixed and erected on the center of the lid 14 with bolts 16. Further, cobblestones 17 are spread around the artificial ornamental plant 15 to form an ornamental plant planted in a flower pot. Therefore, such a flowerpot 10
It will be convenient if it is installed in an office, a restaurant, a room of a general household, a waiting room of a hospital, or the like.

Next, the hydroxyl ion generator incorporated in the flower pot 10 will be described. The flowerpot body 11
A large number of slit-shaped suction ports 18 are formed in the upper part of the body of the body, and a pre-filter-19 made of activated carbon fiber is attached to the inner surface of the suction ports 18.

In the water chamber 12, a cylindrical humidifying filter-20 is submerged in approximately half, and this humidifying filter-20
Is fixed to the flowerpot main body 11 via a mounting frame 21. Therefore, the humidifying filter 20 is constantly wetted by the water in the water chamber 12 by the capillary principle.

Above the inside of the humidifying filter 20,
A fan 23 with a motor 22 is attached via a bracket (not shown). Therefore, when the fan 23 is driven, the dirty air in the room in which the flowerpot 10 is installed sucks the air into the suction port 18-> the prefilter-> the humidification filter-.
The dust is removed and humidified via 20 and flows out to the duct 24.

In this duct 24, a pair of left and right hydroxyl ion generators 25 described in FIG. 2 are installed.
A high voltage power source 26 for ozone generation of the hydroxyl ion generator 25 is attached to the lower surface of the lid 14.

Next, the operation of this embodiment will be described. Motor 2
2 and the ozone generating high-voltage power supply 26 are turned on, the fan 23 is driven and the streamer discharge 4 is generated in the hydroxyl ion generator 25. as a result,
About 1.3 to 1.5 ^m3 / min of dirty air in the room is sucked from the suction port 18 and passes through the pre-filter-19, where coarse particles are trapped. Next, humidification filter-20
By passing through it, fine particles (house duct, pollen, nicotine tar, etc.) are captured and air is humidified while depositing water-soluble substances such as cigarette smoke.

Next, the humidified clean air is agitated by the fan 23 while being mixed with the hydroxyl ion generator 25.
As it reacts with the streamer discharge 4 generated in the above, the four kinds of active oxygen explained in FIG.
Is released indoors. When the released gas containing these four kinds of active oxygen is adsorbed on the odor particles in the room, the particles become electrically neutral and become heavy, and settle on the floor. In addition, the odorous particles become odorless by being oxidized by active oxygen, especially OH ⁻ .

Although the present embodiment has been described with reference to a flowerpot for artificial foliage plants, the present invention is not limited to this, and a suction port is provided at the bottom.
It can also be applied to a general box-type air purifier having an outlet on the upper side. A shower may be used for humidification.

[0022]

According to the present invention, the following various effects are exhibited. Humidified air is caused to react with the streamer discharge by the ozone generator to generate hydroxyl ions, which are released indoors. Therefore, the raw ions are, for example, 0.1 P.
It is said that if it is not PM to 0.05 PPM, it is said to be toxic to the human body. However, since this hydroxyl ion, especially a hydroxyl radical, has an oxidation potential of 2.8 V, it will be oxidized without penetrating the lungs of the human body, and the so-called Safety can be secured because the toxicity of destroying cells by invading deep lung is eliminated. The released hydroxyl ion gas strongly oxidizes the bad odor in the room to make it odorless. The released hydroxyl ion gas is adsorbed by the indoor particles and converted to electrical neutrality, and further becomes heavy and settles on the bed, so that suspended particles can be removed. Since the ozone generator immediately produces hydroxyl ions, it requires only one duct, which makes it extremely compact and compact, which is convenient for indoor air purifiers. Since humidified air is used as a raw material for the ozone generator, the air in the room can be circulated and the yield of hydroxyl ions does not decrease.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Application electrode, 2 ... Induction electrode, 3 ... Dielectric material, 10 ... Flower pot, 23 ... Fan, 24 ... Duct, 25 ... Hydroxyl ion generator

Claims (4)

[Claims] 1. An ozone generator in which a pair of an application electrode and an induction electrode are each wrapped with a dielectric material and a high voltage is applied to the application electrode to generate a streamer discharge between the electrodes.
An indoor air purifier using hydroxyl ion gas, which is provided in a humidified air circulation duct for circulating humidified air by a fan to generate hydroxyl ion gas. 2. A pre-filter and a moisturized humidifying filter are concentrically arranged, a fan is provided in the humidifying filter, and a humidified air circulation duct is provided on the downstream side of the fan. Indoor air purifier using hydroxyl ion gas. 3. The indoor air purifier using a hydroxyl ion gas according to claim 1, wherein the humidified air circulation duct is formed in a flowerpot for an artificial plant. 4. The humidified air circulation duct has a suction port downwardly,
The indoor air purifier using the hydroxyl ion gas according to claim 1, which is formed in a box having an air outlet on the upper side.