RU73227U1 - ELECTRIC CLEANER OF DIELECTRIC LIQUIDS WITH ELECTRODE REGENERATION - Google Patents

Abstract

The invention relates to devices for cleaning dielectric liquids from mechanical impurities and can be used for regeneration (cleaning) of electrodes in these devices.

The essence of the invention lies in the fact that at the end of the cleaner, inside it, an ultrasonic vibrator is installed, which is included in the work, as dirt deposits of mechanical particles on the electrodes accumulate, when cleaning dielectric liquids.

In this case, the power of the electrodes is turned off, and the internal cavity of the purifier is filled with dielectric fluid. The ultrasonic vibrator creates elastic waves in the fluid in a direction perpendicular to the plane of the electrode plates. Due to the slots in the electrodes, these waves propagate throughout the purifier. In a liquid, under the influence of ultrasonic waves, voids form in the form of tiny bubbles with a short-term increase in pressure inside them. These bubbles form a large number of microexplosions that act on the surface of the electrodes, disrupt the adhesion of dirt, tearing it away from the electrodes, i.e. purify the latter, restoring (regenerating) their primary productivity. Then, after the vibrator is turned off, liquid with dirt is poured out of the cleaner. This eliminates the need for disassembly of the cleaner itself.

There is a gap between the inner surface of the cleaner body and the case of the ultrasonic vibrator, which ensures the free flow of the liquid being cleaned.

Description

The invention relates to a device for cleaning dielectric liquids from solids.

Known electric cleaner of dielectric liquids (E.O. D. Zh.) [1], comprising a housing and precipitation electrodes made in the form of metal plates with slots forming channels for the passage of liquid and equipped with partitions of dielectric material, and the electrodes and partitions form cells - accumulators of pollution, precipitation electrodes are connected to a constant high voltage source with alternating potential sign, additional electrodes with one of the potential signs (for example, negative) e are electrically connected to the cleaner body, and the electrodes of the opposite potential sign are located relative to the inner wall of the housing with a gap and form additional pairs of precipitating electrodes along the perimeter of the cleaner, and the last sedimentation electrode in the direction of liquid flow has a potential sign opposite the potential sign on the body

The disadvantage of this cleaner is the lack of regeneration (restoration of its performance) of the precipitation electrodes.

During the work of E.O. D. Zh. On its precipitating electrodes, dirt accumulates in the form of mechanical particles and deposits (the thickness of the layer formed by this pollution increases), which impairs the purity of the processed liquids. Therefore, according to the authors, it is assumed that the deposited layer is periodically removed, which consists in the complete disassembly of E.O. D. Zh., Washing of the electrodes (it is even possible to use mechanical methods to remove deposited particles from the surface and electrodes when it will be impossible to wash them off), drying and subsequent assembly. All this requires manual labor, time, and downtime.

equipment, stopping the cleaning process and, consequently, leads to economic losses.

The purpose of the invention is the implementation of the regeneration (cleaning) of the electrode-precipitators in a minimum time without disassembling the purifier itself.

The essence of the invention lies in the fact that under one of the covers of the cleaner (inside) there is an ultrasonic vibrator, which during operation creates elastic waves in the liquid inside the cleaner, causing cavitation explosions, which result in shock waves acting on the settled layer of mechanical particles of precipitating electrodes, tearing them from the surface of the electrodes and, thereby, cleaning (regenerating) this surface [23].

When E.O.D. Zh. Is working, the ultrasonic vibrator is turned off. When it is necessary to regenerate the electrodes (as mechanical impurities accumulate), then the power to the electrodes of the purifier is turned off, its internal: the cavity is completely filled with dielectric fluid (it is simpler than the same as it was cleaned of impurities), and the ultrasonic vibrator is turned on. After a certain time (up to 5 minutes), it turns off, the liquid contaminated with mechanical impurities from the electrodes is poured out. Precipitating electrodes are clean and ready for use.

The ultrasonic vibrator is thus fixed on the Cover from the inside so that the liquid being cleaned flows freely through the internal cavity of the cleaner. To do this, a gap is created between the inner surface of the cleaner body and the vibrator body.

The surface of the vibrator, directed to the body of the cleaner, has an area slightly smaller than the cross-sectional area of the body, which ensures the occurrence of shock waves in the entire volume of liquid located in the interelectrode space.

The entrance to the cleaner from the side of the vibrator is tightly closed, and the purifier is filled from the opposite side. After the end of the process of regeneration of the electrodes, the plug at the inlet from the side of the vibrator is removed.

Comparative analysis allows us to conclude that the proposed device differs from the prototype in that it is additionally installed

an ultrasonic vibrator, which is turned on during the regeneration (cleaning) of the precipitating electrodes, when the internal cavity of the cleaner is filled with dielectric fluid and the voltage supplied to the electrodes is turned off. (If this voltage is not turned off, the regeneration process will take longer, because together with the separation of mechanical particles from the electrodes, the reverse process of their deposition takes place). Thus, the proposed technical solution meets the criterion of "Novelty."

An analysis of the known technical solutions (analogues) in the studied area allows us to conclude that there are no signs in them that are similar to the essential distinguishing features in the inventive device, and to recognize it as meeting the criterion of “Significant differences”.

The use of all new features allows the regeneration (recovery) of electrode-precipitators to be carried out without disassembling the purifier itself. This is ensured by the creation of shock waves inside the liquid in the cavity of the cleaner with an ultrasonic vibrator integrated inside the cleaner. Figure 1 presents a General view of the cleaner with an ultrasonic vibrator in the context (the vibrator is presented without a cut).

The electric cleaner 7 consists of a housing 1, restriction plates 2, a set of precipitation electrodes 3, dielectric partitions 4, nozzles for supply 5 and liquid selection 6. Precipitation electrodes 3 are made in the form of circular metal plates with slots. Between the precipitation electrodes are located dielectric partitions 4, which together with the electrodes 3 form storage cells for contaminants. An ultrasonic vibrator 8 is located under the lid of the cleaner. Between the vibrator and the case of the cleaner there is a gap through which the liquid to be cleaned flows freely. On the top cover there is a tap 9 for bleeding the accumulated gases.

The ultrasonic vibrator operates as follows.

When the liquid is cleaned of mechanical impurities, the ultrasonic vibrator is turned off. Over time, dirt from mechanical particles accumulates on the precipitating electrodes, which degrades the degree of purification of the liquid. Therefore, it must be deleted. In this case, the fitting 5 is tightly closed by a plug. Across

the nozzle 6 is filled with a dielectric fluid, completely filling the internal cavity of the cleaner (the cleaner is located vertically with the nozzle 6 up). After that, the ultrasonic vibrator 8 is turned on, which creates elastic waves propagating throughout the entire volume of the liquid inside the cleaner, which is allowed by the slots in the electrodes. In this case, bubbles form, which slam with the creation of high pressures.

These pressures act on the dirt, tearing it off the surface of the electrodes, cleaning the latter. When the vibrator is working for some time (the longer the vibrator works, the cleaner the surface of the electrodes will be), the surface of the storage electrodes is regenerated (cleaned). Then the ultrasonic vibrator is turned off, the liquid from the body is poured through the nozzle 6 along with the dirt, which is separated from the electrodes. The plug is removed from the fitting 5 and the cleaner is ready for operation.

Information sources:

1. Patent for invention No. 2145524 "Electric cleaner of dielectric liquids." The Russian Federation.

2. Ultrasonic washing device "Retona". - NGO "Retona", Tomsk.

3. Vorobyov L.N. Engineering technology and machine repair. - M.: Higher School, 1981. - p. 215.

Claims (1)

An electric purifier for dielectric liquids with regeneration of electrodes, including a housing and precipitation electrodes, made in the form of metal plates with slots forming channels for the passage of liquid, and equipped with baffles of dielectric material, and the electrodes with baffles form pollution storage cells, the precipitation electrodes are connected to the source high voltage alternating sign of potential, characterized in that on the end side of the cleaner, inside it, there is a device for ultrasonic vibration of a round or any other shape, and its location such that the ultrasonic waves propagate along the generatrix of the cleaner, perpendicular to the surfaces of the electrodes, through the slots in them with the inner cavity of the cleaner filled with dielectric fluid, and between the inner surface of the cleaner body and the body of the device for ultrasonic vibration there is a gap for the free flow of the cleaned fluid.