RU2322748C1 - Power supply unit for electrochemical process - Google Patents

Abstract

FIELD: electrical engineering, concerns the method of deposition of metals in electrolyte, charging of storage batteries using the summation of direct current and impulse current.

SUBSTANCE: the power supply unit has a DC supply source and an impulse current supply source, where the current power is set depending on the process of coating. The first DC supply source consists of a feeding transformer, thyristor rectifier, instrument shunt, electronic control unit, smoothing reactor. The second impulse current supply source consists of a feeding transformer, diode rectifier, smoothing reactor, thyristor-capacitor unit, electronic control unit, double-wound reactor-transformer.

EFFECT: provided deposition of any metal, enhanced rate of metal deposition, due to variation of the relation of currents, provided the required physical properties of the coating, recovery of storage batteries.

2 cl, 1 dwg

Description

The invention relates to the field of electrical engineering and relates to a method of deposition of metals in an electrolyte, charging batteries, using the summation of direct current and pulse-shock current.

Known existing power systems that implement several methods of electroplating: continuous, pulsed, reversible, etc. current [1. 2. 3. 4. 5. 6], allowing to obtain electroplating. A device is known for supplying a welding arc with a pulsed current, containing two sources: a direct current source and an auxiliary pulse current source (9).

The technical result is: the possibility of deposition of any metals, increasing the deposition rate of metals [7. 8] by changing the ratio of currents, obtaining the necessary physical properties of the coating, restoration of batteries.

The proposed system and device allow to obtain other properties of the coating of metals, which cannot be obtained by direct or pulsed currents.

The proposed system and device of the invention consists in that it contains two peer independent independent power sources that are connected to the network and to the load in parallel, for the first and second power sources the output power terminals are common.

In this case, the first DC power supply consists of a supply transformer, a thyristor rectifier, a measuring shunt, an electronic control unit, a smoothing reactor. The second power source of the shock-pulse current consists of a supply transformer, a diode rectifier, a smoothing reactor, a thyristor-capacitor unit, an electronic control unit, a double-winding inductor-transformer.

The drawing shows a block diagram of a device consisting of two power sources, each of which consists of a supply transformer (1. 6), rectifiers (2. 7), control system (5. 9), smoothing reactors (4. 8), a measuring shunt (3), a thyristor-capacitor unit (10), a two-winding inductor-transformer (11), the transformer inputs (1. 6) connected to the electric network, the output of the power transformer (1) connected to the input of the thyristor rectifier (2), the positive output of which is smoothly connected to the positive input about the reactor (4), the output of which is connected to the positive terminal, the negative output of the thyristor rectifier (2) is connected to the input of the measuring shunt (3), the output of which is connected to the negative input of the smoothing reactor (4), the output of which is connected to the power negative terminal, in in turn, two outputs from the measuring shunt (3) are connected to the control unit (5), the output of which is connected to the control electrodes of the thyristor rectifier (2).

The output of the power transformer of the pulse-shock power supply (6) is connected to the input of the diode rectifier (7), the positive output of which is connected to the positive input of the smoothing reactor (8), the output of which is connected to the positive power terminal, and in turn the negative output of the diode rectifier (7) ) is connected to the negative input of the smoothing reactor (8), the output of which is connected to the first terminals of the capacitors of the block (10) and the input of the first winding of the double-winding inductor-transformer (11), the output of which is connected to odes output thyristor unit (10), the anodes of the thyristors of the input unit (10) connected to a negative power terminal, the input thyristor cathodes connected to the anodes of thyristors and second output terminals of the capacitors.

In turn, the second winding of the double-winding inductor-transformer is connected by the beginning of the winding directly to the negative power terminal, and the second end of the winding to the anode of the diode, the cathode of which is connected to the positive power terminal, in turn, the control electrodes of the thyristors of the block (10) are connected to the control block (9 )

The device operates as follows: the DC power supply stably maintains the set current value from the minimum to the nominal value at the output terminals, while the smoothing reactor (4) does not pass high-voltage pulses to the input of the rectifier.

The pulse-shock current power source operates on the principle of charge-discharge of the capacitors of the unit (10), while the capacitors charge through the load (the parameters of which affect the shape and duration of the current) connected to the output power terminals, the capacitors discharge to the first winding of the double-winding inductor -transformer, the second winding of which is connected through a diode to the power terminals and the discharge energy is summed with the charge energy.

Thus, the pulse power at the power terminals and the efficiency of the device are increased. A galvanic bath, battery or similar device may be used as a load.

Bibliography

1. The author. testimonial. USSR No. 2133541, Н02J 7/02.

2. The author. testimonial. USSR No. 2038671, Н02J 7/02.

3. The author. testimonial. USSR No. 20919999953, Н02J 7/02.

4. O.G. Bulatov, A.I. Tsarenko. Thyristor-Capacitor Converters.

5. B.I. Artomonov, A.A. Bokunyaev. "Power Sources."

6. "Questions of chemistry and chemical technology" 1981, No. 65.

7. "Questions of chemistry and chemical technology" 1980, No. 60.

8. N.A. Kostin, V.S. Kublanovsky, V.A. Zabludovsky. "Pulse electrolysis."

9. The author. testimonial. USSR No. 189973, class B23K 9/06.

Claims (2)

1. The power source device for electrochemical processes, containing two peer independent independent power sources connected in parallel to the mains and the load, the first power source is a direct current source, the second power source is a pulse-shock current source, the input power terminals of which are common, different the fact that the output power plus terminal is connected to the positive output of the smoothing reactor of the first power source, to the positive output smoothing of the reactor of the second power source and to the cathode of the diode, the anode of which is connected to the second winding of the double-winding inductor-transformer, and the output negative power terminal is connected to the negative output of the smoothing reactor of the first power source, to the anodes of the input thyristors of the thyristor-capacitor unit and to the second end of the second winding a double winding inductor-transformer designed to transfer the discharge energy of a thyristor-capacitor block to a load, while in the thyristor-capacitor block the cathode output thyristors are connected to the end of the first winding of a double winding inductor-transformer, the cathodes of the corresponding input thyristors and anodes of the corresponding output thyristors are connected to the first end of the corresponding capacitor, the second ends of which are connected to the second end of the first winding of the double winding inductor-transformer and the negative output of the smoothing reactor of the second power source, providing a thyristor-capacitor block charge through a load connected between the output power terminals. 2. The device according to claim 1, characterized in that the current power in the pulse at the output of the second power source is an order of magnitude or more higher than the DC power at the output of the first power source.