RU2033962C1 - Device for nonselfmaintained discharge for generation of ozone and comprehensive water purification - Google Patents

Abstract

FIELD: systems for purification and disinfection of sewage and drinkable water. SUBSTANCE: device has ionizer - electron accelerator, discharge gap - gas-discharge chamber, electrodes of discharge gap and dielectric structure. Discharge gap electrodes are made of a set of lattices passing working gas and electron beam. Lattices are connected by pairs to opposite poles of power supply source with grounded midpoint and installed with their planes parallel to gas flow and across axis of electron beam, or parallel to working gas flow and parallel to axis of electron beam, or perpendicular to working gas flow and parallel to axis of electron beam. In this case, outlet foil window of accelerator has grounded lattice which passes electrons. End face of gas discharge chamber is made in form of grounded wall of channel for conveying water. EFFECT: higher efficiency. 3 cl, 6 dwg

Description

 The invention relates to the technique of non-self-sustained gas discharge, which is widely used in electroionization lasers and used in non-self-sustained ozone generators, and can provide a comprehensive treatment of wastewater and drinking water.

 The main parameter determining the efficiency of ozone generators is the energy output of ozone, i.e. the amount of ozone produced by consuming a unit of energy.

According to this indicator, ozonizers have the best parameters using beams of fast electrons (up to 7 eV / molecule), but taking into account the efficiency of energy conversion from its primary source, which is 10-30% of the technical complexity and high cost of creating electron accelerators with a large output power, it is preferable to generate ozone in a non-self-sustained discharge controlled by an electron beam [1-3]
A known installation for generating ozone based on a non-self-sustained electron-beam-controlled discharge [4] The apparatus comprises an ionization device (IU) an electron accelerator, a discharge gap a gas discharge chamber (GRC) with a longitudinal discharge, perforated discharge gap electrodes passing through the working gas, and from the side cathode electron beam UI. The discharge voltage is applied to the anode of the GRK. The discharge studies at this facility showed that the ozone yield increases sharply with field strengths in the gas distribution complex E / p> 10 kV / cm.

 However, for an industrial ozone generator based on a non-self-sustained discharge, it is necessary to apply a voltage of several tens of kilovolts to the electrodes of the gas distribution complexes, and to increase the electric strength, profile electrodes. All this complicates the design of the gas distribution system and the discharge power system. In addition, the use of an installation with a non-self-contained discharge controlled by an electron beam for water purification only by ozonation seems insufficient.

 The aim of the invention is to increase productivity and reliability, radiation treatment of water.

 To do this, in a device with a non-self-contained discharge for generating ozone and complex water purification, containing an ionization device made in the form of an electron accelerator, a gas discharge chamber with electrodes and dielectric walls, the electrodes are made of a set of gratings that pass the working gas and the electron beam connected in pairs to the opposite the poles of the power source with a grounded midpoint installed with their planes parallel to the flow of the working gas and across the axis of the electron beam, while the output the foil window of the accelerator is equipped with a grounded, electron-passing grating, and the end of the gas-discharge chamber is made in the form of a grounded channel wall for transporting water.

 In the device, the electrodes of the discharge gap can be made of a set of gratings installed with their planes parallel to the flow of the working gas and parallel to the axis of the electron beam.

 In the device, the electrodes of the discharge gap can be made of a set of gratings installed with their planes perpendicular to the flow of the working gas and parallel to the axis of the electron beam.

 The distinguishing features of the present invention include: the use of a multi-electrode discharge system with a voltage relative to the grounded structural elements is half that between the electrodes and the general small voltage of the power source, transverse ionization of the gas during a longitudinal discharge of gas between the electrodes, as well as the transportation of purified water under the influence hard x-ray radiation.

 Figure 1-6 schematically shows various embodiments of the device.

 The device comprises a gas discharge chamber, consisting of a safety grating 1, dielectric walls 3 and a channel wall 4 for transporting water, as well as an ionization device made in the form of an electron accelerator 2, hermetically connected to a safety grating 1 and dielectric walls 3. It is also hermetically connected to dielectric walls 3 wall of the channel 4 water transport. The electrode gratings 5 are fixed in the dielectric walls 3 and are connected in pairs to the opposite poles of the discharge power source with a grounded midpoint 6. The hermetic system for pumping working gas, a water and ozone mixer, and other elements of a complex water treatment device are not shown in FIGS.

 The device operates as follows. A wide-aperture beam of accelerated electrons from accelerator 2, passing through the safety grating 1 and electrode gratings 5, ionizes the working gas in each discharge gap. From the voltage applied to the electrode arrays 5, a non-self-contained volume discharge lights up between them. The imbalance required for ozone generation is created by both fast electrons and discharge.

 A prerequisite for the high performance of the installation for ozone production is the electric field strength of the discharge exceeding 10 kV / cm. In a relatively small gap in the field close to the electric field of a flat capacitor, this goal is achieved more easily. In addition, it is quite possible to dispense with a relatively low voltage power source. The combination of plus and minus on the middle electrode grids 5 allows you to double the voltage between the electrodes compared with the required insulation to earth. The safety grill 1 closes the discharge zone to the foil of the electron accelerator. Hard inhibitory x-rays affect the biological components of the treated water. When installing an additional grounded grating in front of the channel wall for transporting water, laminar outflow of the treated water is possible under the direct influence of an electron beam, which allows you to deepen the process of water purification.

Claims (3)

 1. DEVICE WITH AN INDEPENDENT DISCHARGE FOR OZONE GENERATION AND COMPLEX WATER PURIFICATION, containing an ionization device made in the form of an electron accelerator, a gas discharge chamber with electrodes and dielectric walls, characterized in that the electrodes are made of a set of gratings that pass the working gas and the electron beam, in pairs to the opposite poles of the power supply with a grounded midpoint installed with their planes parallel to the flow of the working gas and across the axis of the electron beam, at The output foil window of the accelerator is equipped with a grounded electron-transmission grating, and the end of the gas-discharge chamber is made in the form of a grounded wall of the channel for transporting water.  2. The device according to claim 1, characterized in that the electrodes of the discharge gap are made of a set of gratings installed with their planes parallel to the flow of the working gas and parallel to the axis of the electron beam.  3. The device according to claim 1, characterized in that the electrodes of the discharge gap are made of a set of gratings installed with their planes perpendicular to the flow of the working gas and parallel to the axis of the electron beam.

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