SU1414771A1 - Installation for producing ozone - Google Patents

Description

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The invention relates to chemical engineering and can be used in the chemical industry, as well as in powerful ozonating complexes for the treatment of waste and drinking water.

The aim of the invention is to simplify the installation for the production of ozone.

FIG. 1 is a block diagram of an installation for producing ozone in FIG. 2 is a timing diagram of a symmetrical three-phase voltage system in FIG. 3 is a timing diagram 15 of the voltage pulses Uo driving the ozone generator; FIG. 4 is a timing diagram of the current io in the ozone generator.

The plant for the production of ozone 20 contains (Fig. 1) a power source 1, an ozone generator 2, a sensor 3 for its performance, an adder 4, a modulator 5, including a block 6 for pulse-phase control and anode-cathode groups 7 with thyristors 8-13.

The installation works as follows.

At a certain point in time t (Fig. 2, t a), a control impulse is supplied to the thyristor 8, the anode of which is connected to the phase A, from the pulsed-phase control unit 6 (Fig. 1). As a result, the thyristor 8 is opened and the voltage on the ozone generator 2 changes according to the law of change in the voltage of the phase A of source 1 (Fig. 3). Consequently, in the time interval ab (Fig. 4), a current flows through the ozone generator 2 (Fig. I) - giving its capacity.

3, the time t - b (Fig. 3) decreases the voltage on the generator. 2 ozone, the current in the thyristor 8 is reduced to a current lower than its current. The load is 45, and it closes (FIG. 4),

By supplying from the control pulse unit 6 at time t (Fig. 2), the thyristor 13 is opened (Fig. 1), the cathode of which is connected to the C phase of the source 1. At the same time, the voltage on the generator 2 changes sign and then in the interval time cd varies according to the law of voltage variation of phase C (Fig. 3). At the same time, in the time interval cd, a recharge of the capacity of generator 2 (Fig. 1) occurs, which ends at the time point corresponding to point d (Fig. 3) for the same reason as at time point corresponding to point b, after which thyristor 13 is closed. Similarly to the considered sequential feed from the block 6 of control pulses at time points corresponding to the points e, f, g, k, J, 1, m, n, p (Fig.2), respectively, to the thyristors 9, 11, 10, 12, 8, 13, 9, I 1, 10 (Fig. 1) and form all subsequent half-periods of voltage and current of the generator 2 (Fig. 3, 4),

When the signal from the setting unit (not shown) of the performance of the ozone generator 2 U increases, the signal is proportional to the error in the performance of the generator 2, which leads to such a shift in the position of the control pulse supply points, and c, e, f, etc. (Fig. 2) where the error signal is reduced to zero. At the same time, the frequency of the signals that excite the ozone generator 2 is three times higher than the frequency of the mains 1 signal, which ensures a high nominal plant capacity. In addition, the installation is powered by an industrial network, the generator 2 is excited by signals with a frequency of 150 Hz, which is optimal when the ozone generator 2 is energized, which ensures minimal power consumption.

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Claims (1)

Invention Formula An ozone production plant containing a multiphase power source, an anode and cathode current collector unit, a pulse phase control unit, an ozone generator with its capacity sensor and an adder, while the current collector groups and inputs of the pulse phase control unit are connected to the power source phases, control electrodes of current-collecting groups - with the output of a pulsed-phase control unit, and the output of the ozone generator through its sensor of performance - with one of the inputs of the adder, the other input of which is connected to unit performance adjuster, characterized in that, in order to simplify the installation, the source is supplemented with a zero output, while the common points are 1414771 The current collector groups are combined and the adder is connected to the source through the input of the ozone generator, connected to the input of the pulse-phase control unit with the zero output of the source, and the output of the control. / AT ag 2