RU94173U1 - SCHEME FOR SUPER-DEEP CLEANING OF ENERGY OILS AND INTERNAL SURFACES OF OIL-FILLED EQUIPMENT - Google Patents

Abstract

 Ultra-deep cleaning scheme for energy oils and internal surfaces of oil-filled equipment, characterized in that a flow meter, a coarse filter, a turbo dryer, an ultra-deep filter and a non-return valve are installed in series in the drain part of the oil tank.

Description

The proposed utility model relates to the field of energy and can be used for ultra-deep cleaning of energy oils, oil pipelines, oil tanks, lubrication and control systems from mechanical impurities, sludges and water.

Various purification schemes for energy oils are known (1, 2, 3). The circuit consists of a cylindrical housing, a set of electrostatic filters inserted in a cylindrical package, a pump for supplying oil and a control panel. The oil being cleaned is fed into a cylindrical housing with electrostatic precipitators located in it. Contaminants settle on the inner surfaces of electrostatic filters in the cells of the drives and are held there.

Another cleaning scheme is an experimental installation for cleaning fuels and lubricants (4), consisting of an electrostatic precipitator, a casing, and a pump. Oil is passed through an electrostatic field, in which polar particles are deposited on the electrodes that create this field (electrophoresis process), and neutral particles, due to a special element (corrugated paper) located between the electrodes, which distorts the electric field, settle on this element in places of greatest tension (electrophoresis). This device does not contain any filters and the oil flow rate does not fall and, accordingly, does not create high pressure. In this case, small particles (from 0.8 μm, oxidation products) are removed from the oil, which cannot be achieved using porous filters.

The disadvantages of the prototypes:

- the need for preliminary drying of the oil, since in the presence of moisture, a closure of the package of electrostatic precipitators can occur

- the inability to use with significant contamination of oils with particles of 20-50 microns, since many particles are conductors, which will lead to the closure of the package of electrostatic precipitators

- the inability to clean the internal surfaces of the equipment

The purpose of the proposed model is to increase the reliability and efficiency of regulation and control systems, increase the life of the equipment

The proposed utility model includes a description and a schematic hydraulic diagram of ultra-deep cleaning of energy oils, internal surfaces of oil-filled equipment (Figure 1).

The circuit consists of an inlet pipe 1, an oil supply pump 2, an electromechanical valve with a return mechanism 3, a coarse filter 4, a hydraulic crane 5 with an electric motor 6, electrostatic filters of ultra-fine cleaning 7, chokes with a constant geometry of 8 and 11, drain valves 9, 10 , 16, 17; desiccant 12; compressor 13; a pump for pumping oil from the desiccant 14; gas separator 15; output pipe 18; flow meter 19 and check valve 20.

To ensure reliable operation of electrostatic ultrafine filters 7, oil is supplied through a flow meter 19 and inlet pipe 1. Pump 2, through an electromechanical valve with a return mechanism, supplies oil to a coarse filter 4, which are designed to separate coarse particles of impurities and partially free water. From the coarse filters 4, the oil is supplied for drying to the desiccant 12 through an electromechanical valve 5. In the desiccant, the oil is fed through a constant-flow inductor to the atomizer distributor, where water is removed from the oil.

A level maintainer and a water trap provide separation of the oil-air emulsion and the release of moisture along with air into the atmosphere. The air necessary for the implementation of the process is supplied to the system using a centrifugal compressor 13 mounted on a water seal.

The drained oil is pumped out of the water trap using a pump 14 and supplied for degassing to a gas separator 15. In the gas separator, the final separation of air microparticles takes place.

Next, the oil through electrostatic filters ultrafine 7, designed to remove microparticles of contaminants (particles with a size of 0.1 microns) from the oil and the inner surfaces of oil-filled equipment. The flow rate of the oil through the electrostatic superfine filter 7 is regulated by the throttle 8 and the flow meter 19. After the super deep cleaning, the oil is fed back to the oil-filled equipment through the outlet pipe 18 and the non-return valve 20. The impurities located on the internal surfaces of the oil pipelines, control systems and the oil tank diffuse into the cleaned in this way oil and removed from them.

The advantage of the claimed model, in comparison with the prototype, is that oil purity is achieved far from the level of saturation of contaminants, as a result of which the contaminants diffuse from the internal surfaces of the oil-filled equipment, pipelines, control systems, oil tanks and are removed to the pollution accumulators.

Example

An oil tank with a capacity of 20 m3 is filled with 10 m3 of Tp-30 oil and it is cleaned according to the description. The results are presented in table 1.

Table 1. Oil quality indicators Before cleaning After cleaning The content of particles of the pollutant,% of the mass. 0,03 0.0001 The water content,% of the mass. 0.01 0.0020 Sludge content, g / m2 2.83 0.18

Information sources:

1. AC No. 691199 Electric dielectric fluid cleaner. G.A. Nikitin, K.V. Nikonov, G.P. Karabtsov, 10.15.79

2. AC No. 1454507 Electrodynamic method for purification of dielectric liquids and a device for its implementation. A.E. Skachkov, I.S. Lavrov, S.M. Timonov, 01/30/1989

3. AC No. 1695987 Electric purifier for dielectric liquids. V.I. Mozgovoy, L.N. Kalkovets, 12/07/1997.

4. Davidenko Yu.P. Experimental installation for cleaning fuels and lubricants in the production, repair and operation of aircraft. (UDC 621.7.027, National Aviation University, Kiev)

Claims (1)

Ultra-deep cleaning scheme for energy oils and internal surfaces of oil-filled equipment, characterized in that a flow meter, a coarse filter, a turbo dryer, an ultra-deep filter and a non-return valve are installed in series in the drain part of the oil tank.