SU899082A1 - Electromagnetic separating filter - Google Patents

Description

I

The device relates to the operation of hydraulic systems, in particular to devices for cleaning the working fluids of hydraulic systems from magnetic particles.

A filter separator for cleaning liquids from ferromagnetic particles is known, which includes a housing with inlet and outlet pipes and a tray for removal of separated particles and an electromagnetic system arranged in the form of a rotor M j located eccentrically inside it on the shaft.

The disadvantage of this filter is the impossibility of separating fine particles from the fluid carried away by the fluid flow in the space between the body and the flow divider.

A filter separator is also known, in which the housing is provided on the outside with an additional electromagnet mounted between the outlet branch pipe and the tray for removal of the separated particles, the shaft is provided with a collector for turning on the windings of the electromagnetic system in its lower part installed on the outside of the case, and the rotor is made with radial grooves, equipped with spring-loaded blades, abutting the inner wall of the housing. In addition, the filter separator is equipped with a scraper abutting the rotor and located in front of the tray to drain the separated particles, and the blades are made of diamagnetic material G2}.

However, the known device is characterized by low reliability due to the presence of rubbing contacts, as well as the complexity of the design of the device, due to the need to wind the windings of the electromagnet on the rotor.

The purpose of the invention is to increase the reliability and simplify the design of the device.

Claims (2)

This goal is achieved by the fact that a filter separator containing a non-magnetic cylindrical body with inlet and outlet nozzles, a particle collection tray located eccentrically on the shaft relative to the body, a rotor made of magnetically soft material with radially mounted spring-loaded non-magnetic blades, a power winding and a winding separation of particles, provided with an L-shaped magnetic core located outside the housing with a base mounted on the lateral surface of the housing; the magnetic pole is made with the central angle is equal to 30 ° - oL, where is the angle between the inlet pipe and the tray for removal of particles, and the power winding is made sector-shaped and placed on the pole of the magnetic circuit. FIG. 1 shows a filter separator, a general view; in fig. 2 - jo is the same side view. The filter separator contains a non-magnetic body 1 with inlet pipe 2, a discharge pipe 3 and a tray 4. Tray k is enclosed in a particle separation winding 5. Inside the housing 1 there is a Mai nitrous conductive rotor 6 with radial grooves in which spring-loaded outer side vanes 7C are installed. The housing is enclosed by a magnetic conductor 8, the pole 9 of which is made with a central angle less than 30% by the angle oL, under which the feed pair 2 and tray. The base 10 of the magnetic circuit 8 is located on the outer side surface of the housing 1. Inside the housing, at the edge of the tray t, a scraper 11 is installed. The power winding 12 is made sectionally and covers the pole 9 of the magnetic core 8. The blades 7 are spring-loaded from the ends using a spring 13 The device operates as follows. A constant voltage is applied to the feed coil 12 and the coil 5 winding particle. Under the action of the current flowing through the winding 12, in the gap between the radial surface of the rotor 6 and the base 10 a mantle field arises. Under the action of the current flowing through the winding 5 in the zone of the output opening 24 of the housing 1 into the tray 4, a magnetic flux occurs. In the area defined by the angle oi, the magnetic field from the power winding 12 is absent due to its sector-like design. When fluid enters through the nozzle 2, the rotor 6 starts to rotate due to the fluid flow due to the presence of non-magnetic blades 7. Under the action of magnetic flux, magnetic conductive particles are deposited on the surface of the rotor 6. In the tray t zone, the rotor is not affected by the field from the supply winding 12, therefore particles that have previously settled on the rotor, due to the presence of a scraper 11 and magnetic field of the particle winding 5, fall off tray k. In the proposed filter-separator, the rotor is made much simpler than the known one. In addition, the power winding from the inside of the filter is transferred to the outside, which increases the reliability of the filter. Improving reliability also serves to eliminate the collector and switching nodes of the power winding and particle separation winding. An electromagnetic filter separator comprising a non-magnetic cylindrical body with inlet and outlet nozzles, a particle extraction tray located eccentrically on the shaft relative to the housing, a rotor made of magnetically soft material with radially mounted spring-loaded non-magnetic blades, a power winding and a particle separation winding, characterized in that, in order to increase the reliability and simplify the design, the filter separator is provided with an L-shaped core located outside the housing a base mounted on the shell side of the magnetic pole provided with a central angle of FRL - oi-, oI- wherein the angle between the supply pipe and conductive tray for discharging the particles, and a power winding vypol5899082 " The yen is sector-like and is placed on 1. USSR author's certificate for the magnetic field pole. No., cl. At 03 On 1/10, 1973. Information sources, 2. USSR author's certificate taken into account in examination No. 685332, cl. B 03 C 1/02, 1979. 13