RU2073747C1 - Electrode unit for electrolysis plant for producing sodium hypochlorite - Google Patents

Abstract

FIELD: electrolytic processes. SUBSTANCE: electrode unit has end monopolar electrodes, connected with current conductors, and bipolar electrodes disposed between monopolar ones. Electrodes are made in the form of cassette pressed in into a non- conducting material containing electrode and current-conducting parts. Upper and lower ends of electrodes bear shields made of non- conducting material. Ratio of bipolar and monopolar electrode height to interelectrode distance is ranged from 25 to 150. Side walls of electrode part have through openings with distance locks. Current-conducting part is provided with a hold with cavity for attachment. EFFECT: improved design. 3 cl, 2 dwg

Description

 The invention relates to disinfecting equipment, in particular to nodes of electrolysis plants for the production of sodium hypochlorite.

 A known installation for sterilizing lenses using sodium hypochlorite obtained by the electrolysis method [1] The electrodes in the known installation are made monopolar platinum and installed in an electrolysis tank.

 However, the electrode block is not sufficiently productive, it is rigidly connected with the electrolysis capacity and does not have mobility and versatility.

 Also known is a vertical non-diaphragm biopolar electrolyzer [2] containing end monopolar electrodes connected to current leads and placed between monopolar biopolar electrodes, partitions of non-conductive material.

 The disadvantages of the electrode unit are the stationarity of the design with significant dimensions, large leakage currents.

 The technical result of the invention is to increase the reliability and ease of use.

 This is achieved by the fact that in the electrode block for an electrolysis unit for producing sodium hypochlorite, containing end monopolar electrodes connected to current leads and placed between monopolar bipolar electrodes, partitions of non-conductive material, the electrodes are made in the form of a cartridge pressed into a non-conductive material and containing electrode and the current-carrying part with the current leads placed in it, the side walls of the electrode part are solid, and the lower and upper walls are provided with openings By means of holes, partitions are installed on the upper and lower ends of the bipolar electrodes, while the ratio of the height of the bipolar electrode to the interelectrode space is (b) 25 <b <150, in addition, holes in the side walls of the electrode part are made with pressed-in remote clips with holes, and the current lead part equipped with a grip-holder with a recess for fastening.

 The essence of the invention lies in the fact that high-performance bipolar electrodes with a strong selective anode coating, pressed into a non-conductive material, made it possible to create an electrode block in the form of an electrode cartridge, protected from mechanical external influences, convenient in operation, with the ability to produce sodium hypochlorite autonomously at the place of consumption , enjoying all the advantages of a mobile high-performance device.

 Figure 1 shows a section of an electrode block. Figure 2 shows the connection diagram of the electrode unit.

 The electrode block contains plate monopolar electrodes 1 connected to current leads 2 and located between monopolar bipolar electrodes 3, partitions 4 made of non-conductive material, electrodes 1, 3 made in the form of a cartridge, and current leads 2 are pressed into non-conductive material 5. The electrode block has a current-conducting and electrode parts (6, 7, respectively), the electrode part 7 has side walls 8, lower and upper walls (9, 10, respectively). The electrode part is provided with holes 11 with pressed remote locks 12, the current-supplying part 6 is equipped with a handle-holder 13 with a recess 14 for mounting on the electrolysis tank 15, while the electrode unit is connected to the power source 16.

 Pressing the electrodes 1, 3 and current leads 2 into a non-conductive material allows to achieve high reproducibility of the parameters of the electrode block, the accuracy of the relative positions of the electrodes 1, 3, setting the interelectrode distance, excluding short circuit when it decreases and heating the electrolyte when it is unjustifiably increased. Partitions 4 of non-conductive material installed on the upper and lower ends of the bipolar electrodes help to get rid of leakage currents, increase the useful work and efficiency of the device. The optimal ratio of the length of the electrode to the interelectrode space from 25 to 150 does not make it possible to increase the voltage at the electrodes when going beyond the lower limit and to form a continuous gas cushion when going beyond the upper limit.

 All these signs together increase the reliability of the device. The implementation of rigid current leads 2, pressed into plastic with a handle - holder 13 at the end and a recess 14 for fixing in the electrolysis tank, creates additional ease of use of this small portable design.

 In addition, the through holes 11 and the remote clips 12 pressed onto the side surface allow the electrode blocks to be grouped with pins to create more powerful installations, while the remote clips 12 set the desired distance between the cassettes taking into account the thickness of the box for connecting the terminals 17.

 The electrode block, using the handle-holder 13 and the recess 14 for fixing, is installed on the edge of the electrolysis tank 15 with a solution of sodium chloride, connected via leads 17 to a power source 16. As a result of electrolysis, a solution of sodium hypochlorite with conc. Act. chlorine 8. g / l.

 Thus, the proposed electrode unit for an electrolysis unit for the production of sodium hypochlorite with high performance stability characteristics has high reliability and ease of use.

Claims (3)

 1. The electrode unit for an electrolysis installation for producing sodium hypochlorite, containing end monopolar electrodes connected to current leads and placed between monopolar bipolar electrodes, baffles of non-conductive material, characterized in that the electrodes are made in the form of a cartridge pressed into a non-conductive material and containing an electrode part and the conductive part with the current leads placed therein, the side walls of the electrode part are solid, and the lower and upper walls are provided with Verstov, partitions are mounted on upper and lower ends of the bipolar electrodes, wherein the ratio of the height b of bipolar and monopolar electrodes to the interelectrode space is 25 <> b <> 150.  2. The block according to claim 1, characterized in that through holes with remote locks are made in the side walls of the electrode part.  3. The unit according to claim 1, characterized in that the current-carrying part is provided with a handle-holder with a recess for fastening.

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