SEPARATING DEVICE FOR REMOVING SOLID PARTICLES FROM LIQUID AND GAS FLOWS FOR LARGE PRESSURE DROPS Russian patent published in 2018 - IPC E21B43/08 

FIELD: oil and gas industry.

SUBSTANCE: device includes circular pack of at least three brittle-hard disks, upper side of circular disks is made with at least three spacers which are equidistant from each other along perimeter of disks and flat section of contact of these spacers, so that the spacers are in contact in the plane with the bottom side of adjacent circular disk and circular disks stacked by the pack and fixed so that there is a separating gap between the individual disks in each case for removal of solid particles with circular axial projection of ring disks on inner and outer perimeter. The brittle-hard material of the circular disks is selected from oxide and non-oxide ceramic materials, mixed ceramics of these materials, ceramic materials with addition of secondary phases, mixed materials with inclusions of ceramics or metal solids and with metal binder phase, powder metallurgy materials with phases of solid material made in place and ceramic materials reinforced with short or long fibres. On side surface of perforated branch pipe on which the fragile-solid circular disks are placed, there are at least three strips, parallel to axes and equidistant from each other. The disks are located in the center of the perforated branch pipe. End caps are fixed at the lower and upper end of the circular pack.

EFFECT: reliability, service life is increased.

22 cl, 61 dwg, 4 tbl