JPH09124303A - Concentration-variable ozone gas generating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a concentration-variable ozone gas generating system prevented from shortening of the life of an ultraviolet lamp by controlling O3 generation amount by a specific means to eliminate flashing of the ultraviolet lamp in the case of changing O3 concentration in the O3 gas generating system. SOLUTION: This concentration-variable ozone gas generating system controls an O3 generating amount by receiving and holding an ultraviolet lamp 1 in a cylindrically formed lamp holder 2, inserting a flow rate adjuster 3 into a path of air flowing into the inside of the lamp holder 2 and varying the amount of the air into the lamp holder 2 by the flow rate adjuster 3. Preferably, a concentration is adjusted by mixing O3 from the lamp holder 2 with an air from an air source A passed through an air path R1 in a gas mixer B. An electromagnetic valve 5 is used for feeding a purging air into the lamp holder 2 and for adjusting the amount of air flowing into the lamp holder 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable concentration ozone gas generation system.

[0002]

Oxygen contained in air is a so-called ultraviolet lamp (a lamp which emits ozone rays having a wavelength of 184.9 nm).
Although it is known that the energy of the electromagnetic waves from the ozone gas changes into ozone, adjustment of the ozone generation amount, that is, change of the ozone concentration has conventionally been performed by blinking an ultraviolet lamp.

However, the method of changing the ozone concentration by blinking the ultraviolet lamp as described above has a problem that the life of the ultraviolet lamp is shortened remarkably when the blinking is frequent.

[0004]

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a concentration-variable ozone gas generation system that does not shorten the life of an ultraviolet lamp.

[0005]

According to the ozone gas generating system of variable concentration type of the present invention, the ultraviolet lamp 1 is housed and held in the lamp holder 2 formed in a cylindrical shape, and the flow rate in the air path into the lamp holder 2 is increased. The amount of ozone generated can be adjusted by inserting the adjuster 3 and changing the amount of air into the lamp holder 2 by the flow rate adjuster 3.

That is, since the conventional method is not to blink the ultraviolet lamp to adjust the ozone generation amount, the life of the ultraviolet lamp is not shortened.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.
This will be described with reference to the drawings.

As shown in FIG. 1, the ozone gas generation system of variable concentration type has an air flow path R1 and an ozone generation flow path R2 connected between an air source A and a gas mixer B. The air and ozone (ozone gas) mixed by the gas mixer B are guided to a predetermined position.

The main components of this system will be described below. [Regarding Air Source A] The air source A is, as shown in FIG.
Air blowout type is used and air flow path R
1 and the ozone generation flow path R2. The air source of the air blowing type may be, for example, a blower, a compressor, an air pump, or the like. [Regarding Gas Mixer B] As shown in FIG. 1, the gas mixer B uses an ejector composed of a main path b1 and a suction path b2 connected to the path at a right angle,
The downstream end of the air flow path R1 is connected to the main path b1, and the downstream end of the ozone generation flow path R2 is connected to the suction path b2.

The gas mixer B is an ejector.
Not only limited, but ozone and air can be effectively mixed
Any type of mixer can be used
No. [About air flow path R1] As described above, the air flow path R1
Connect the air source A and the gas mixer B as shown in FIG.
However, a known check valve 6 is provided between them.
I have inserted it. The air flow path R1 will be described later.
Along with the ozone generation flow path R2, the metal or resin hard
Quality pipes and soft tubes can be used. Also, Teflon
Or silicone tube can be used.[About ozone generation flow path R2] Ozone generation flow path R2
As shown in FIG. 1, adjust the flow rate in the main circuit R2a.
Holds the container 3, the well-known check valve 4, and the ultraviolet lamp 1.
Which is provided in series with the cylindrical lamp holder 2
In addition, in this one, the air source A and the lamp holder are further added.
Bypass circuit R2 that connects 2 and the solenoid valve 5 is inserted
b is provided.

The UV lamp 1 has a wavelength of 184.9 nm.
It emits ozone rays, and known ones are used. Note that the wavelength is not limited to the above value, and may be ozone rays.

The lamp holder 2 is of a pressure-sealed type, and as shown in FIG. 1, when the ultraviolet lamp 1 is accommodated and held, sufficient air is provided between the inner surface of the holder and the outer surface of the ultraviolet lamp 1. The diameter is set so that it can pass through. The lamp holder 2 is basically formed in a tubular shape with both ends open, but the central cross section may be circular or polygonal.

As shown in FIG. 1, the flow rate adjuster 3 is for adjusting the amount of air flowing into the lamp holder 2, and a valve type or a damper dip type is used.

The solenoid valve 5 is used for sending purge air in the lamp holder 2 and for adjusting the amount of air flowing into the lamp holder 2. The solenoid valve 5 can be replaced with a motor valve.

In this concentration-variable ozone gas generation system, the ozone concentration of the ozone gas can be changed in a wide range by adjusting the opening degree of the flow rate controller 3 and the solenoid valve 5, and the method of changing the ozone concentration can be applied to the lamp holder 2. Since the amount of air is changed, it is possible to prevent shortening of the life of the ultraviolet lamp 1, and the ozone gas from the gas mixer B can be transferred to a desired position as it is by a pipe or the like.
It has an excellent effect that it can be used by one without attaching a plurality of ozone lamps.

[0016]

From the contents of the actions described in the section of the means for solving the problems, it is possible to provide the ozone gas generation system of variable concentration type which does not shorten the life of the ultraviolet lamp.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of a variable concentration ozone gas generation system according to an embodiment of the present invention.

[Explanation of symbols]

 A Air source B Gas mixer 1 UV lamp 2 Lamp holder 3 Flow rate controller 4 Check valve 5 Solenoid valve 6 Check valve

Claims (2)

[Claims] 1. A lamp holder (2) formed in a cylindrical shape.
The ultraviolet lamp (1) is housed and held in the lamp holder (2), and a flow rate adjuster (3) is inserted into an air path to the lamp holder (2). A variable concentration ozone gas generation system characterized in that the amount of ozone generated can be adjusted by changing the amount of air. 2. A variable concentration ozone gas generation system according to claim 1, wherein ozone from the lamp holder (2) and air are mixed.