JPH0244009A - Power source device for ozonizer - Google Patents

Abstract

PURPOSE:To set an effective discharge time by forming a three point discharge gap through specified resistor and capacitor at the time of superimposing a reverse voltage on a charged DC voltage with the discharge gap and capacitor. CONSTITUTION:In the device for ozonizing O2 molecule with an electron group generated in a silent discharge, the capacitors 5 and 6 are charged by the commercial power sources 1 and 2 through diodes 3 and 4. A bridge is formed with the two capacitors 6 and the two resistors 7. One end of a low-capacity capacitor 10 is interposed in the discharge gap 8 provided between the bridges through a high resistor 9 to form the three-point gap. A discharge is generated in the three-point gap, hence the two capacitors 6 are connected in series, a discharge gap 11 is charged with the sum of the voltage and the charging voltage for the capacitor 5 to cause a discharge, and a voltage is briefly generated in a resistor 12 in the opposite direction to the DC power source 13.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an ozone generator.

[Conventional technology]

In conventional methods in which oxygen molecules are ozonated by a group of electrons generated by silent discharge, the applied voltage is generally an alternating current voltage.

Although it is clear that by setting this applied voltage to be a DC voltage, the silent discharge electron density, which is related to the ozone yield, is several times higher in the same device, this is due to the fact that the cathode is covered with an insulator. There was a delay in using DC voltage as a power source because problems such as a decrease in ozone yield occur due to the accumulation of space charges of cations around the yin wire.

To prevent the space charge accumulation of the above cations, periodic
It is effective to apply a reverse voltage for a short period of time, and an inexpensive and effective method for applying the reverse voltage has been provided. No method for setting the timing was provided.

[Problem to be solved by the invention]

An object of the present invention is to provide an effective method for setting a discharge time and a method for reducing charging resistance loss when a reverse voltage is generated between a discharge gap and a capacitor.

[Means to solve the problem]

In order to automatically generate a voltage between the terminals of a load resistor, etc. as regularly as possible, in a short time, and as a result of charging and discharging phenomena of a capacitor, the present invention uses a charging power source to connect a resistor and a capacitor. The capacitor is constructed by dividing the capacitor in order to significantly reduce the resistance loss of the charging resistor of the capacitor. It is something.

[Embodiments of the invention]

In Fig. 1, ■, 2 is a commercial power supply for charging, and capacitors 5 and 6 are charged via diodes 3 and 4, 7 is a charging resistor corresponding to the charging time of capacitor 6, 9 is a high resistance element, 10 is a small capacitor, one end of which is interposed within the lightning discharge gap 8, forming a three-point gap.

The configuration of this three-point gap is such that two each of the capacitor 6 and the charging resistor 7 form a bridge, and between the bridges,
A discharge gap 8 is provided. One end of a small capacitor 10 is interposed in the gap 8 via a high resistance element 9.

11 is a discharge gap, and as the three-point gap discharges, two capacitors 6 are connected in series, and the sum of the charging voltage of the capacitor 5 charges and discharges the gap 11,
A voltage in the opposite direction to that of the DC power source 13 is generated in the resistor 12 periodically and for a short period of time.

As a result, the sum of the DC power supply 13 is applied between the terminals of the ozone generator 14, and this applied voltage becomes a DC voltage that shows a reverse voltage periodically and for a short time, making it possible to prevent the accumulation of positive ions. can.

However, when the application interval of the reverse voltage for preventing the accumulation of cations is long, the time change rate of the voltage applied to the discharge gap 8 becomes minute, exceeding the discharge variation limit and making it difficult to set the discharge timing.

In FIG. 2, 15 is the charging voltage of the capacitor 6, 16
represents the charging voltage of capacitor 5. Therefore, it would be better to make the charging power source higher, but in this case, the resistance loss of the charging resistor 7 would increase significantly, so it would not be a good idea to divide the capacitor into 5 and 6, and set the charging voltage of the latter to the former. By setting it to a fraction of , the effect of reducing the loss of the capacitor charging resistor to a fraction of that is lost.

As a means to solve the above-mentioned problems, and also as a method that takes advantage of the capacitor division effect for the above-mentioned charging resistor loss, one end of the microcapacitor 10 is interposed in the discharge gap 8 via the high-resistance element 9. The goal is to create a three-point gap.

If this three-point gap method is used, the applied voltage will be the sum of power supplies 1 and 2, or several times that of the system using only power supply 2. The capacitor capacity required to hold the reverse voltage of the body 12 (capacitor 5
and 6), the capacitor 10 can be charged to a small capacity, and the capacitor 10 can be charged almost in proportion to the charging time. For example, if the discharge interval is set to 0.2 seconds, In this case, a charging voltage difference of about 10% can be provided, the discharging time can be set, and the interval between charging and discharging can be set to a constant value.

It should be noted that the high resistance element and the small capacity capacitor can be charged using a separately prepared power supply, but this method naturally falls within the scope of the present invention, although the cost of the separate power supply will be high.

〔Effect of the invention〕

It enables setting of discharge timing and has the effect of significantly reducing capacitor charging resistance loss.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing the principle of the present invention, and FIG. 2 is a diagram showing the charging status of capacitors 5 and 6. 1...Commercial power supply, 2...Commercial power supply. 3...Diode, 4...Diode. 5... Capacitor, 6... Capacitor. 7... Charging resistor, 8... Discharging gap. 9...High resistance element, 10...Small capacity capacitor. ...Discharge gap 2...Resistor...DC power supply...Ozone generator...Charging voltage...Charging voltage.

Claims (1)

[Claims] 1. In a device that ozonates oxygen molecules using a group of electrons generated during silent discharge, a periodic and short-term reverse voltage to be superimposed on a DC voltage is generated. A power supply device for an ozone generator, characterized in that when realizing charging of a capacitor and discharging of a discharge gap, the discharge gap is configured as a three-point gap from a charging power source of the capacitor via a resistor and a capacitor. 2. In a device that ozonates oxygen molecules using a group of electrons generated during silent discharge, a bridge-configured capacitor and A power supply device for an ozone generator characterized by a charging capacitor connected in series with another capacitor.