SU487665A1 - High pressure electrolyzer for oxygen and hydrogen production - Google Patents

Description

The invention relates to the following parts: 1c of the trolly production of oxygen and hydrogen and pressure, in particular to the designs of high-pressure electrolyzers.

A high pressure electrolyzer for electrolytic oxygen and hydrogen generation is known, consisting of an electrical conductor housing, in which two coherent louvre-shaped electrodes are connected electrically through a toroidal transformer and rectifier elements installed in the housing lid, and through an electrolyte, as well as a pump whose impeller is covered by an apron and placed horizontally under the electrodes. The louvre-shaped, conical electrodes and impeller impeller are located on the same shaft. A disadvantage of the known construction is a violation of the seal in the gland seal of the rotating shaft at high pressures. The need to compress the gland seal to specific pressures of 800 kg / cm in a known design makes it difficult in practice to obtain high rotational speeds of the shaft and leads to rapid shaft wear at the sealing points, i.e., loss of sealing in the apparatus.

In order to increase the reliability of the device’s operation, the proposed electrolyzer is equipped with a hermetic tank, filled with liquid

srsdol and rpzms1tson; and; || at the bottom: e.K gragln., MaiUHTOM and elekgrodvngate.chem, sl.o :: i l mines in the tank, with the magnet attached to the motor shaft, and a disk rigidly attached to the end of the impeller. In addition, hermetically sealed is equipped with a flexible membrane.

The drawing shows an obnip view of the desired electrolyzer.

The body 1, made in the form of a strong cylindrical vessel, is hermetically sealed above} by a lid 2 with a valve 3 for collecting the exhaust gas.

The external cone-shaped electrode 4 is arranged according to the type of “louver, i.e., there are slots 5 on its surface, located in a staggered bar, and forms cavities 7 and 8 with a cylindrical casing 6 connected to the housing with fasteners. the electrode 9, which also has louvre-like slits in the working cone-shaped part, has a cylindrical shape at the top and ends with a flange 10. Inside this electrode, on the rigid spokes 11, there is a fixed axis 12, the console of which bears the fixed on the bearing unit p The impeller 13 of the pump. The wheel 14 is rigidly attached to the end of the wheel. of technical steel with a weight of at least 10 kg. Tube 15 SERVES

for removal of electrolyte from the upper part of the apparatus to the impeller.

The inner electrode, rigidly bonded to the lead rod 16, forms a sealed cavity 17. The lead rod, in turn, is hermetically and electrically isolated through the electrolyzer cover, and also has a through channel 18 for removing one of the gases and a toroidal transformer 19 with rectifying elements.

The electrolyzer is equipped with an airtight container 20, located at the bottom of the electrolyzer, cavity 21, filled with liquid medium, such as oil, and equipped with a submersible electric motor 22. A permanent magnet 23 is rigidly fixed to the motor shaft. The container has a cover 24 located under the impeller disk and designed, for example, from a non-magnetic thin steel sheet. Through the bottom 25 of the electrolyzer, the electrical cable 26 is hermetically passed to power the electric motor. A flexible membrane 27 is incorporated into the vessel shell to equalize the pressure in the cavity of the vessel with the pressure in the electrolysis cell bath. The gap between the magnet on the motor shaft and the jib capacitance is minimized. Fresh electrolyte is supplied to the apparatus with the help of an auxiliary pump through valve 28. The surface of the parts placed in the upper part of the electrolyzer is coated with an electrically insulating varnish.

The electrolyzer works in the following way.

When a toroidal transformer 19 is included in the network, water is decomposed in the electrolyzer, oxygen and hydrogen are released on the surfaces of electrodes 4 and 9. Gas bubbles, which appear during the decomposition of water on the surfaces of electrodes, are washed off by electrolyte flow into the louvered slits electrodes. Circulation of electrolyte is achieved by rotation

impeller pump 13. In turn, the impeller 13 of the pump is rotated (as follows. When the engine 22 is included in the network

the rotor rotates with a permanent magnet 23 fixed on its shaft 23. The rotation of the permanent magnet carries the disk 14 and the impeller of the pump rigidly connected with it through the interaction of the magnetic field of the permanent magnet 23 with the current induced in the disk 14. Location of the electric motor 22 in its capacity of 20, filled with oil, excludes the effect of an alkaline medium - electrolyte. Pressure

the produced gases in the electrolyzer. and in the cavity 21 is balanced through the flexible membrane 27.

Ф о р .1 л and invented and

Claims (2)

1. A high pressure electrolyzer for producing oxygen and hydrogen, consisting of an electrically conductive casing, in which two conical louvered electrodes connected electrically through a toroidal transformer and rectifying elements mounted on the housing cover and through the electrolyte, as well as a pump whose impeller is covered by an apron and placed horizontally under the electrodes and located on the same shaft with the electrodes, characterized in that increase the reliability of the apparatus, the electrolyzer is equipped with a sealed container filled with a liquid medium and placed at the bottom of the electrolyzer with a magnet and an electric motor mounted in the container, and mounted on the shaft of the electric motor, and a disk rigidly fastened to the end of the worker wheels. 2. The electrolyzer according to claim 1, wherein the sealed container is provided with a flexible membrane. J 25