JPS59145017A - Ozone removing apparatus - Google Patents

Abstract

PURPOSE:To reduce ozone effluence, by lowering air passing resistance by providing an arc generating part to the downstream side of an ozone generating part. CONSTITUTION:In the machinery having acorona discharge part such as an electrostatic air purifier, an arc generating part 11 is provided to the air passage formed to the downstream side of ionization parts 1, 2. Ozone generated in the ionization parts 1, 2 is decomposed by the arc generating part 11 and purified air free from ozone is sent out from an exhaust port 7.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a method for discharging corona discharge by attaching it to equipment having a corona discharge section, such as electrostatic air purifiers or electrostatic copying machines used in general homes and automobiles. The present invention relates to a device for removing ozone generated in a factory.

Conventional structure and problems Conventionally, ozone generated by this type of corona discharge was
To prevent pollution and adversely affecting the human body, conventional methods are explained using Figure 1, which shows an electrostatic air purifier, which generally uses adsorbents such as activated carbon to lower the ozone concentration. do.

1.1', 1'' are ionization lines, 2, 2'... are counter electrodes of the ionization lines 1, 1', and although not shown, a high voltage is applied between the ionization lines and the counter electrodes. The counter electrodes 2, 2'... are grounded. These two electrode parts are collectively referred to as the ionization part. 3, 3' are grounded electrodes, and 4, 4' are high voltage electrodes. Arranged parallel to the flow, these electrodes are called dust collectors.

6 is a breathable activated carbon layer. Reference numeral 6 denotes a blower fan driven by a motor, and is configured so that air flows through the ionization section, the dust collection section, and the breathable activated carbon in this order. 7.7′ is sucking;
Greenope 8 on the exhaust port is the case.

In this configuration, when dust-containing air is inhaled through the intake grille, ionization lines 1. , 1'... and the counter electrode 2
．． It crosses the ionic current section generated at 2' and is charged. Next, the ground electrodes 3, 3'... and the high voltage electrode 4 of the dust collection section
, 4', . . . , charged dust is attracted and collected by the electrodes 3, 3’, . . . or 4, 4’. Furthermore, ozone generated in the ionization section is adsorbed by the breathable activated carbon layer 5, and is blown as clean air from the exhaust outlet grill section.

In this configuration, the size of the vent hole in the breathable activated carbon 6 is generally made very small because the smaller the size, the more effective it is, and the thickness can be made thinner.

For this reason, air ventilation resistance was large, and it was necessary to use a large-capacity motor fan 6. Also, due to the flow of ions
In the ion wind system, which generates wind using activated carbon, basic characteristics may be impaired, such as the amount of air not being produced due to the activated carbon.

OBJECTS OF THE INVENTION The present invention solves the conventional problems as described above and provides an ozone removal device with low ventilation resistance and less ozone outflow.

Structure of the Invention The ozone removal apparatus of the present invention is an apparatus having an ozone generating part such as a corona generating part, and an arc generating part is provided downstream of the ozone generating part, and ozone is decomposed by this arc discharge.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. 1
4. 6 to 8 are the ionization section, dust collection section, grill, and case of the electrostatic air cleaner, as in the conventional example. Reference numeral 11 denotes an arc generating section provided in the ventilation path downstream of the ozone generating section.

The dust collection effect in this configuration is the same as in the conventional example, but the ozone generated in the ionization section is decomposed in the arc generation section provided in the downstream ventilation path, and clean air free of ozone is blown. This method is much more effective than a single electric heater method. Also, contrary to the general idea that ozone would be generated by generating an arc discharge, it is possible to reduce ozone by using an arc. Also, the electric power required for arc discharge is much less than that of the heater method. In this way, it is sufficient to generate arc discharge only in a part of the ventilation path, and there is almost no ventilation resistance.

Note that if the arc discharge of the present invention is installed in an open state in a ventilation path, the arc becomes unstable due to the ventilation flow and generates unpleasant noise, but an arc chamber is provided so that the ventilation flow does not directly hit the arc part. As a result, a stable arc can be generated and unpleasant noises will not be generated. Furthermore, the same effect can be obtained by configuring the arc chamber and the ventilation chamber to allow free ventilation. Further, arc discharge is easy to control electrically, and is safer and more effective than the fuel combustion method.

Effects of the Invention As described above, the ozone removal device of the present invention reduces ozone by providing the arc discharge generation section downstream of the ozone generation section, and can almost eliminate pressure loss.

Furthermore, in order to stabilize the arc, the arc chamber is provided with free ventilation with the ventilation path, thereby making it possible to generate a stable arc with a lot of unpleasant noise.

In addition, electrical control is possible, and ozone removal can be performed safely without the need for flammable materials.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a conventional electrostatic air cleaner, and FIG. 2 is a longitudinal sectional view of an electrostatic air cleaner showing an embodiment of the present invention. 1.2... Ionization section, 3, 4... Dust collection section, 7... Exhaust port, 11... Arc generation section.

Claims (1)

[Claims] An ozone removal device that has an arc generating section downstream of the air flow of a device that has an ozone generating section such as a corona discharge.