SU1452860A1 - Apparatus for producing chlorine-oxygen compounds - Google Patents

Abstract

The invention relates to the design of electrochemical devices and allows to simplify the design and reduce the metal intensity of the device. The device is designed to produce chlorine-oxygen compounds and includes a vertical diaphragm-free electrolyzer with a rectangular-shaped body, inside which are placed plate electrodes attached to the current-carrying plates, and a current source with semiconductor rectifying valves. Semiconductor valves are placed on current-carrying plates mounted on the side wall of the housing, 1 s, p. f-ly, 5 ill.

Description

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The invention relates to the design of apparatuses for the production of oxygen-oxygen compounds by the electrolysis of a solution of methyl chloride.

The purpose of the invention is to simplify the design and reduce the metal consumption of the Device.

; Fig. 1 shows a device t by a monopolar electrolyzer} on (ig.2 - section A-A in Fig .; on () ig. 3 - section with a bipolar electr-) olizer; figure 4 - section bb of figa; figure 5 - section bb In fig.Z,

I The electrolyzer has a rectangular shaped housing 1 with a fitting 2 for the inlet of electrolyte and a fitting 3 for lifting electrolysis products. Inside the housing there are monopolar electrodes — anode 4 and cathode 5. The electrodes are shaped as a set of plates connected by a pin 6 into a single set. The electrodes are connected electrically with a current-carrying plate 7 mounted on the side wall 8 of the electrolyzer housing, made of a corrosion-resistant material. : Plate 7 can be made flat or have a ribbed surface (Fig, 4). Semiconductor valves 9 connected by wires 10 to an alternating current source (not shown) are screwed into the current-carrying plate 7. The number of valves 9 may be different and depends on the required power and the applied rectifier.

The electrolyzer can also be made with a bipolar electrode 11 placed between monopolar electrodes 4 and 5. The electrical connection of the plates of monopolar electrodes 4 and 5 with the current lead plate 7 can be made either by directly connecting the electrode plate with the current lead plate to using studs (Fig. 2), or the transfer plates 12 connected to the current supply plate 7 by bolts 13. In this case, the plates of the electrodes are connected into one set by two studs 6.

During the operation of the electrolyzer, the flow of an aqueous solution of a chlorine-containing electrolyte through the nozzle 2 enters the electrolyzer housing 1 and passes between the plates of electrodes 4.5 and 11

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An alternating electric current is supplied to the valves 9 through the wires 10. When the current passes through the valves 9, the alternating current is converted into a constant current. A constant current from the valves 9 flows through the current-carrying plate 7 to the electrode plates 4.5 and passes through the electrolyte solution. Under the influence of electric current in the electrolyte solution, the formation of chlorine-oxygen compounds occurs. The electrolyte solution, the oxygen-containing compound, such as sodium hypochlorite, is discharged from the cell through the nozzle 3.

When electric current is generated from alternating to constant, the valves warm up. 9. The release of a significant amount of heat can lead to a malfunction of the valves. Heat in the proposed construction is carried out by the flow of electrolyte, which contacts the surface of the current lead plate 7, which is integral with the valves 9. To improve heat removal, the current lead plate 7 can be made with a ribbed surface that will increase the heat transfer surface .

The proposed device provides sufficient heat removal from the valves and can be used for a long time. This achieves a simplification and cost reduction of the structure due to the exclusion of special devices for cooling the valves and by eliminating tires for direct current transmission,

Claims (1)

Claims 1. An apparatus for producing oxygen-chlorine compounds, comprising a vertical, diaphragm-free electrolyzer with a rectangular body, inside which are placed plate electrodes mounted on current-carrying plates, and a current source with semiconductor downpipes, characterized in that In order to simplify the design and reduce the metal consumption of the device, semiconductor valves are placed on the current lead — jester plates mounted on the side wall of the housing. figure 1 S-6 S-3