RU2107552C1 - Electric cleaner for dielectric liquids - Google Patents

Abstract

FIELD: cleaning dielectric liquids from mechanical impurities. SUBSTANCE: cleaner has housing with receiving electrodes arranged inside it and separated by dielectric gaskets made in form of equidistant perforated tapes mounted in housing spirally. EFFECT: enhanced reliability. 3 dwg

Description

 The invention relates to a device for cleaning dielectric liquids from mechanical impurities and can be used in various industries.

 Known electric cleaner of dielectric liquids, in the casing of which precipitating electrodes are installed in the form of plate disks with a dielectric filler between them. Each of the bipolar electrodes is interconnected with a subsequent output through the housing to the power supply [1].

 Closest to the claimed is an electric cleaner of dielectric liquids, the electrodes of which are made in the form of coaxially arranged cylinders with filling the interelectrode space with fiberglass. The cylindrical or close to it shape of the electrodes is optimal, since it most fully meets the requirements of creating an electrostatic field for the purpose of efficient deposition of contaminant particles, in contrast to plate, pin, and other electrodes [2]. However, this solution has a lack of analogues. When the number of electrodes is more than two (and the degree of cleaning directly depends on their number), the connection of unipolar electrodes to supply voltage to them reduces the reliability of the purifier, since the violation of the contact between the electrodes removes some of them from the functioning ones. It is difficult to detect such a defect. And since the control of the purity of the liquid at the outlet of the purifier during its operation is not continuous, the liquid, untreated to the required level, is supplied to the consumer until the next control.

 When developing the proposed solution, the task was to create an electric cleaner that combines two properties - the optimality of the cylindrical shape of the precipitation electrodes and the absence of the need to ensure reliable contact between a large number of unipolar electrodes.

 The problem is solved by performing precipitation electrodes and a dielectric in the interelectrode space in the form of perforated equidistant ribbons placed in a spiral housing.

 The proposed technical solution provides the possibility of constructive execution of the cleaner with the minimum possible number of electrode contacts inside the housing - two for their connection to the power supply. At the same time, the properties of coaxially arranged cylindrical electrodes are positive from the point of view of cleaning.

 In addition, the proposed design of cleaning provides the manufacturability of its manufacture, ease of assembly disassembly if necessary, preventive maintenance.

 In FIG. 1 shows a general view of an electric cleaner; in FIG. 2 is a section A-A of FIG. one; in FIG. 3 - node I in FIG. 2.

 The electric cleaner consists of a housing 1 with covers 2 and 3. In the cover 2 there are fittings 4 for supplying the liquid to be cleaned, and fittings for draining the contaminant. The cover 3 is equipped with fittings 6 for the outlet of the purified liquid and fittings for accommodating the shut-off float valve, which prevents the power supply from turning on when the purifier is not completely filled with the purified liquid (not shown).

 In case 1, precipitation electrodes are mounted in the form of equidistant perforated tapes 8 and 9, separated by dielectric spacers 10 and 11, guaranteeing the required interelectrode gap. At one end, the electrodes and gaskets are fixed in the groove of the central rod 12, at the ends of which there are limiters 13 and 14 with slotted holes for the flow of the liquid being cleaned. The rod 12, the stops 13 and 14 are made of dielectric material. An annular element (or several elements) protects the coiled electrodes 8, 9 and gaskets 10, 11 from unwrapping, contact with the housing 1 and changes in the interelectrical gap. The second end of the electrodes 8, 9 are connected to the terminals 16, 17 connected to the power supply (not shown). Gaskets 10, 11 can be wafer, mesh type or corrugated with perforation for the flow of the liquid being cleaned. Cells 18 formed between the surfaces of the electrodes 8, 9 and gaskets 10, 11 are contaminant accumulators.

 The electric cleaner works as follows.

 A liquid to be cleaned is fed through the nozzle 4, which, passing through the perforation of the electrodes 8, 9 and gaskets 10, 11, fills the volume of the housing 1, displacing air into its upper part, through the nozzle 7 it enters the chamber of the shut-off float valve, which includes a direct current source high voltage. A voltage is applied to the electrodes 8, 9, a potential difference is created between them, an inhomogeneous electric field appears in the purifier, under the influence of which the contaminant particles are entrained from the liquid stream, deposited on the electrodes 8, 9 and accumulate in the cells 18. The purified liquid is supplied to the consumer through the nozzle 6 .

 The regeneration of the purifier during the accumulation of the pollutant is carried out in a known manner by applying alternating voltage to the electrodes 8, 9 while draining the pollutant through the nozzle 5.

Claims (1)

 An electric dielectric fluid purifier comprising a housing with precipitation electrodes placed therein, separated by dielectric spacers, characterized in that the precipitation electrodes and dielectric spacers are made in the form of perforated equidistant ribbons mounted in a spiral fashion.

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