Bipolar electrolysis unit for obtaining hydrogen and oxygen mixture |
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IPC classes for russian patent Bipolar electrolysis unit for obtaining hydrogen and oxygen mixture (RU 2476623):
 
 Removal of silicon from solution / 2476379
Invention can be used in chemical industry. In order to remove silicon compounds from water NaCl brines, first, pH lower than 3 is created with hydrochloric acid in weak brine. Iron (III) chloride or other trivalent iron compounds are added to acidified brine. Prepared brine is continuously introduced into mixing dissolution reactor, in which in addition to brine undissolved salt is placed. Fresh salt is added into reactor periodically in portions. Formed concentrated brine is introduced into mixing buffer tank. PH from 5 to 8 is supported in buffer tank. From buffer tank flow of concentrated brine is continuously withdrawn and filtered, filtrate is discharged. Device for removal of silicon compounds from solution contains reactor of salt dissolution, mixing device in it, charging device for supply of salt into reactor, feeding point for supply of weak brine into reactor, feeding points for supply of hydrochloric acid and iron (III) chloride into line of weak brine supply, buffer tank for concentrated brine, mixing device in buffer tank, hydrodynamic connection between dissolution reactor and buffer tank and discharging device for filter cake, discharge channel and transport mechanism for delivery of concentrated brine from buffer tank into filter.
 Method of conducting electrolysis and apparatus for realising said method / 2475569
Method of conducting electrolysis employs at least two groups of electrodes which are electrically connected to a power supply, each having at least one pair of oppositely charged electrodes, wherein during electrolysis, an electrical circuit is switched, which enables alternate connection of groups of electrodes to the power supply, wherein during operation of the first group of electrodes, the second group and other groups are disconnected, after which the second group is connected to the power supply and the first and other groups are disconnected. The periodicity of alternate connection of groups of electrodes to the power supply is equal to 0.05-1.0 s. Also disclosed is an apparatus for conducting electrolysis, having an electrolysis cell and switching means, which enables alternate connection of the same groups of electrodes to the power supply while simultaneously disconnecting others.
 Unipolar-bipolar electrolytic cell to make mix of hydrogen with oxygen / 2475343
Invention relates to gas-flame processing of materials with hydrogen-oxygen mix, particularly, to electrolytic cells to this end. Electrolytic cell may be filter-press or box-type device. Note here that some electrodes of the cell are unipolar while some of them are bipolar electrodes. It consists of flat or shaped parallel electrodes with holes of slots making gas and electrolyte passages. Space between electrodes is filled with electrolyte while electric current is supplied to extreme electrodes. Said electrodes are interconnected by current conducting buses to make sets, two extreme of which comprise n+1 electrodes while other include 2n+1 electrodes, where n is natural number. Note here that central electrodes of every said set with 2n+1 electrodes are located between two adjacent sets while other 2n electrodes of this set are arranged at the center of gap between electrodes of adjacent sets with contact with said buses.
 Water electrolytic generator gate / 2474624
Proposed device is composed of vertical cylinder divided by two vertical baffles into three chambers. Branch pipes arranged concentrically one in another are attached from below to centre of both baffles. Lower chamber is partially filled with fluid. Note here that end of the branch pipe attached to lower baffle is immersed in lower chamber fluid while branch pipe attached to upper baffle extends through medium chamber and into the branch pipe attached to lower baffle and either does not reach fluid surface in outer branch pipe or terminates several centimetres below fluid surface. Lower and medium chambers are communicated via long tube.
 Hydrogen generator / 2473716
Hydrogen generator comprises casing accommodating runs of plates separated by gaps to form impermeable cells. Note here the plate making the first wall of every cell is made from more noble material than plate making second wall of this cell. Note also that fist plate in runs makes anode to be connected to power supply. Note also that last plate in runs makes cathode to be connected to power supply. Inlet of every cell allows electrolyte inflow into cell while outlet of every cell allows electrolyte and hydrogen gas efflux from cell.
Hydrogen generator / 2473716
Hydrogen generator comprises casing accommodating runs of plates separated by gaps to form impermeable cells. Note here the plate making the first wall of every cell is made from more noble material than plate making second wall of this cell. Note also that fist plate in runs makes anode to be connected to power supply. Note also that last plate in runs makes cathode to be connected to power supply. Inlet of every cell allows electrolyte inflow into cell while outlet of every cell allows electrolyte and hydrogen gas efflux from cell.
 Novel highly stable aqueous solution, nano-coated electrode for preparing said solution and method of making said electrode / 2472713
Invention relates to disinfectant compositions and specifically to a highly stable acidic aqueous solution, a method and apparatus for production thereof. The solution is prepared using a fluid medium treatment apparatus having at least one chamber (7), at least one anode (4) and at least one cathode (3) inside the chamber (7). The anode (4) and the cathode (3) are at least in part made from a first metallic material. At least one of said at least one cathode (3) and anode (4) have a coating with nanoparticles (5) of one or more metals.
 Electrolysis cell for producing chlorine / 2471891
In an electrolysis cell for producing chlorine, bipolar electrode elements are made from a bimetallic sheet (steel+titanium); frames of bipolar chambers are made from shaped tubes; anode and bipolar chambers are made from a bimetallic sheet which is made by welding sheets with insert bimetallic (steel+titanium) elements; the anode and the cathode chambers are equipped with built-in heat exchangers, one part of which is formed by placing shortened metallic separating strips inside the chambers and hermetic sealing of the outer surface of the chambers with a metal sheet; the second part is formed by making supporting frames of the chambers hollow, which enables to use water cooling.
 Electrocatalytic method for synthesis of hydrocarbons and alcohols based on plant material / 2471890
Method is realised in a diaphragmless cell which is equipped with an anode and a cathode, in the medium of methyl or ethyl alcohol in the presence of a base, as a result which there is direct electrooxidation of said acids, where the anode used is graphite, pyrographite, Pt-Ir metallurgical alloy, or nanoparticles of a Pt-Ir alloy in amount of 0.1-1.0 mg/cm-2 which are deposited on the surface of glass carbon, and the cathode used is a stainless steel cathode.
 Method for obtaining ionic silver solution / 2471018
Metallic silver is diluted in distilled water till electrolyte is formed. After electrolyte is formed as a result of anodic silver oxidation and self-dilution of oxide, dilution process is interrupted, electrolyte is drained and magnetised by passing it through a glass tube going through magnetic field of constant magnet. Then, at weak mixing of the solution, dilution process of metallic silver is continued till hardly transparent black suspension is formed; after that, the process is stopped. Settled concentrate is separated; in addition, clean electrolyte is magnetised and again brought into circulation, and deposit of crystalline hydrate of silver oxide (1) is used in order to obtain water solution of ionic silver, at which crystalline hydrate is diluted in water, magnetised in magnetic field, filtered and drained to glass bottles to be stored.
 Method of exciting electric arc and device to this end / 2469826
Firing pulse is generated by power accumulated in arc power source inductor when circuit current exceeds holding current. For this, prior to feeding firing pulse to arc gap parallel with arc power source output terminals, control switch is cut on to short-circuit arc power source circuit. Current is allowed to up to holding current. Controlled switch is cut off to allow pulse transformer primary current is changed over to charging of reservoir capacitor. Voltage induced in pulse transformer secondary is applied to electrode gap to break it down for initial ionization of arc gap. Now welding circuit is closed.
 Method of igniting arc in manual arc welding with combined soft and hot starting / 2467845
Method is intended for igniting arc in manual arc welding with combined soft and hot starting. Soft start is performed at short-circuiting the electrode to part. Hit start is performed in parting the electrode from the part and setting arc discharge. Soft start current is set subject to electrode diameter or preset welding current. Changing to hot start is performed in response to signal of voltage transducer that detects arc ignition at the end of soft start. Hot start current is set subject to electrode coating type and set welding current. Microprocessor-controlled power supplies are used including thyristor rectifier, inverter-based source or transistor station controller incorporated with multi-station rectifier system. Note here that in soft start auxiliary low-power HV infeed source.
 Electrolysis unit for obtaining hydrogen and oxygen mixture / 2466213
Electrolysis unit included in water electrolytic generator is proposed. Electrolysis unit includes liquid circulation cooling system containing cooling jacket of electrolysis unit, circulation pump, radiator, axial fan with electric actuator and expansion tank. Electrolysis unit also includes electrolyte temperature sensor, emergency electrolyte temperature relay and connection hoses.
 Thyristor transformer for arc welding / 2441733
invention refers to thyristor transformer for arc welding and can be used for welding of metal details during mounting and repair works in many industrial fields. Thyristor transformer includes control unit, impulse transformer, and thyristors with pick-off diodes, condenser and core-type transformer (CTT). CTT half-coils are located on each rod. CTT is connected to the clamps of supply network by primary coil through full-wave thyristor plug and by half-coil - to load clamps. Primary coil of impulse transformer shunted by free-wheeling diode is connected between cognominal electrodes of thyristors and middle output of primary core-type transformer coil. Thyristors with pick-off diodes between the common points of connection of which condenser is installed, are connected to the clamps of supply network and counter connected coils of impulse transformer are connected to the load clamps by diodes. Their common point is connected to the middle output of core-type transformer half-coil.
 Method to ignite autonomous three-phase arc / 2425736
Three electrodes are used, being assembled as a triangle and isolated from each other by means of a coating. Prior to ignition of an autonomous three-phase arc, a DC arc is ignited between ends of three electrodes and a part at the current force of 6-15 A. After the ends of electrodes are heated above the melting temperature, DC arc supply is disconnected. Three-phase arc supply is connected, and an autonomous three-phase arc is ignited between the heated ends of electrodes.
 Dc welding arc power supply / 2413599
Invention relates to welding, particularly, to DC welding arc power supplies. Power supply comprises control converter, welding transformer, output throttle and power supply for booster made up of secondary winding of lighter, limiting throttle and lighter rectifier. Welding transformer primary is connected with control converter input while welding transformer secondary is connected with output rectifier. Lighter rectifier negative output is connected with output rectifier negative output. Output throttle is connected between positive output of output rectifier and positive output of lighter. Output rectifier positive and negative output are directly connected to positive and negative terminals of output welding circuit.
 Method of welding / 2406597
Invention relates to welding by consumable wire 13. Proposed method comprises removing slag from welding wire end, lighting welding arc 15 between welding wire 13 and processed part 16, and welding with feeding welding wire by wire feed mechanism towards processed part 16. Slag removal started, welding current is reduced to minimum. During slag removal, welding wire 13 is reciprocated, cyclically and repeatedly, towards processed part 16 with preset work stroke and with smaller stroke from part 16 unless control system detects short circuit between welding wire 13 and processed part 16 to strop welding.
 Method to analyse coated electrodes / 2366549
Reliability of repeated arc firing is estimated, in analysing coated electrodes, proceeding from actual conductivity magnitude defined in contact between flowed end face of interconnected electrode under analysis and metal plate. Obtained magnitudes of actual conductivity allow estimating reliability of repeated firing. Higher the conductivity, higher reliability of repeated firing.
 Device for excitation of welding arc (versions) / 2343050
Invention can find application for welding of the oxidated and rusty metal, stainless steel, aluminium and other nonferrous metals, both on variable, and on a direct current. By the first version the start button (SB) is placed on the case of the electrode arm. The diode is connected by the anode to an exit of a RC-chain and the cathode connected to the first input of the block of shaping of impulses of excitation (BSIE). The RC-chain is connected through the SB to a secondary winding of the reducing transformer (RD). BSIE output is linked with an exit of a primary winding of the impulse transformer (IT) which input is connected to an exit of a RC-chain and the second BSIE input. The output of secondary winding IT is connected to the electrode arm clip, and an input - with the power supply clip of the welding arc (SC). The key is performed on the second version with possibility of switching of the device for operation on fixed or an alternating current. At operation on an alternating current to clips IP by means of a key the first RC-chain is connected, in parallel which through the start button BSIE is connected, its one output is connected to an output of the primary winding IT which input is connected to second BSIE output and a key output. At operation on a direct current secondary IT winding is connected in parallel to the second RC-line-up and inputs of the diode the bridge. The positive output of the bridge is connected through a key and SB to one of the BSIE inputs, and its negative output - through a key with other BSIE input. The BSIE output is connected to an output of the primary winding IT which input is connected to second BSIE input. The output of the secondary winding IT is connected to the clip of the electrode arm, and its input - with IP.
 Technique of electric arc welding voltage generating and appropriate apparatus / 2324581
Reference alternating voltage equal to arcing voltage is supplied from voltage source. Reference alternating voltage is added to boosting alternating voltage to value of arc initiation and then boosting alternating voltage is lowered to steady arcing voltage. Voltage is decreased at a moment of arc initiation by transformer output winding of which is coupled between output of reference alternating voltage source and general point of two serial diodes connected to rectifier bridge output. Primary winding of auxiliary transformer is parallel to primary and secondary winding of power transformer.
Unipolar-bipolar electrolytic cell to make mix of hydrogen with oxygen / 2475343
Invention relates to gas-flame processing of materials with hydrogen-oxygen mix, particularly, to electrolytic cells to this end. Electrolytic cell may be filter-press or box-type device. Note here that some electrodes of the cell are unipolar while some of them are bipolar electrodes. It consists of flat or shaped parallel electrodes with holes of slots making gas and electrolyte passages. Space between electrodes is filled with electrolyte while electric current is supplied to extreme electrodes. Said electrodes are interconnected by current conducting buses to make sets, two extreme of which comprise n+1 electrodes while other include 2n+1 electrodes, where n is natural number. Note here that central electrodes of every said set with 2n+1 electrodes are located between two adjacent sets while other 2n electrodes of this set are arranged at the center of gap between electrodes of adjacent sets with contact with said buses.
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FIELD: metallurgy. SUBSTANCE: bipolar electrolysis unit includes a block of electrodes equally spaced from each other and provided with holes for passage of hydrogen-oxygen mixture and electrolyte. Block of electrodes is placed in a shell from dielectric material. Shell encloses the electrodes without any gaps. The shell is submerged into the housing of electrolysis unit with electrolyte. At the same time, the housing with electrolyte can contain at least one additional block of electrodes in shells. Blocks of electrodes are electrically connected to each other in parallel or in series. EFFECT: improvement of an electrolysis unit. 2 cl, 3 dwg
The invention relates to a gas-flame processing of materials hydrogen-oxygen flame with obtaining a hydrogen-oxygen mixture by electrolysis of water directly at the welding place. Famous bipolar electrolyzers have a filter pressnow or box design (Korzh, V., Dihno S.L. metal hydrogen-oxygen flame. Kyiv: Tekhnika, 1985 - 64 S.; Yakimenko L.M., Mogilevskaya I.A., Tkachuk Z.A. water Electrolysis - M.: Chemistry, 1970-263 C.). Gasket in the filter Presnya and housing box of pots made of dielectric (typically polymeric) materials. All such materials have low thermal conductivity. Therefore, to ensure adequate cooling of the electrolyte directly into the cell difficult. This disadvantage of all known filter Presnya and a box of cells leads to the fact that water electrolysis generators (the term "electrolysis water generator" - according to GOST 2601-84, term No. 160) or get overly bulky and heavy, or could not work without interruption - overheat. An attempt to resolve this issue made in the invention by the patent RF №2065803 class. UK 5/00, taken as a prototype. It is proposed, in essence, box electrolysis, in which the body is a metal pipe, covered inside the dielectric layer, and a round flat electrodes of the divided one from another annular insulating spacers. With this design, the thickness of the dielectric coating of the pipe several times less than the wall thickness of the usual box of the cell, since the cover only provides isolation of the electrodes from a metal pipe, thermal conductivity of the material of which an order of magnitude greater than any of the dielectric. The role of the grooves of the flat top of a bipolar electrolyzer in this construction is played distances between the ring gaskets. But if the electrolyzer traditional box design is bound to have gaps between the electrodes and the walls of the grooves, the electrodes with collavini strips can be assembled without gaps. Due to this, the radial size of the pads can be greatly reduced in comparison with the depth of the grooves, thereby improving heat removal from the electrolyte. However, the intensity of heat removal from the electrolyte is still insufficient due to the low thermal conductivity of the material ring seals. Features bipolar electrolytic cell in which the unit distanceremaining apart electrodes placed in the glass of the dielectric material and immersed in the electrolyte, in the case of the electrolyzer. Dielectric glass block covers without gaps electrodes on the perimeter. The glass can be made of fluoroplastic film or other chemically resistant dielectric. In the housing wall electrolysis is and has holes for the leads to the electrode Assembly, the output of the hydrogen-oxygen mixture and replenishment of the electrolyte body. Distancing electrodes provide three local dielectric inserts (for example, a polymeric rivet on the electrode), remote from its perimeter. This design allows to make the dielectric glass fine because the pressure inside and outside of the block is almost the same. Consequently, thermal resistance of the shell so that the temperature difference between its surfaces does not exceed 10°C. For explanations of the described invention figure 1 shows a diagram of the cell, figure 2 - diagram of the cell with the metal case figure 3 - diagram of the electrolytic cell connected in series with two blocks of electrodes in dielectric glasses. As can be seen from figure 1, the electrolytic cell consists of a block distanceremaining apart electrodes 2 and covering a block of dielectric glass 3, is immersed in the electrolyte 4 in the housing 5. Current to terminal electrodes of the unit 2 summed isolated from the outside conductors 6, missing in the electrolyte 4 through the inputs 7. Through pipe 8 of the housing 5 out of hydrogen-oxygen mixture, and through the pipe 1 case replenish the electrolyte. If the metal housing 5, as shown in figure 2, the unit 2 can be brought only the positive wire 6 from the power source, connecting the terminal electrode, closed Cup. While the negative lead from the power source attached to the housing 5 (if you change the polarity, i.e. the risk of anode corrosion damage to the shell of the cell). In case 5 with the electrolyte can be placed two or more shells with blocks of electrodes at the same time, connecting them electrically in series or in parallel. Figure 3 shows a diagram of the electrolytic cell connected in series with two blocks of electrodes 2 in dielectric glasses 3. In accordance with the suggested were manufactured several models of water electrolysis generators from 5 to 15 kV·a, which could operate continuously for several hours with a maximum for each generator capacity for gas (before refueling). 1. Bipolar electrolyzer to obtain a mixture of hydrogen and oxygen by electrolysis of water at a gas-flame processing of materials, comprising a housing with electrolyte, block distanceremaining apart electrodes with holes for the passage of hydrogen-oxygen mixture and the electrolyte, and conductors for supplying current to the electrodes, characterized in that the block of electrodes immersed in the electrolyte, is placed in the glass of the dielectric material covering the electrodes with no gaps and which is immersed in the body with the electrolyte, and guides the La supply voltage connected to terminal electrodes of the block. 2. The electrolyzer according to claim 1, characterized in that in the case with electrolyte immersed additionally, at least one dielectric glass electrode block, and the blocks of electrodes connected in parallel or sequentially.
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