SU1544461A1 - Separator for cleaning gases - Google Patents

Abstract

The invention relates to devices for the inertial separation of two-phase gas-droplet flows and allows to increase the reliability of operation by reducing the load on the bearings mounted on the periphery of the rotating band 9 with perforated ring 10 and working vanes 8. The droplet liquid separates under the influence of inertial and centrifugal forces on the blades rotated by energy gas impeller. The separator passes through the perforation of the ring 10 into the peripheral desiccant chamber 4, washing the bearings, lubricating and cooling them. 1 hp f-ly, 3 ill.

Description

The invention relates to devices for inertial separation of two-phase gas-droplet streams and can be used, for example, in the energy and fuel-gas sectors.

The purpose of the invention is to increase the reliability of work.

FIG. 1 shows a separator, general view, section; in fig. 2 - impeller band and peripheral dehumidifier chamber with bearing supports; in fig. 3 cut

A-A in FIG. 2

i

The separator for gas cleaning comprises a housing 1 in which a guide apparatus 2 and a freely rotating impeller 3 are installed. At the periphery of the impeller 3 in the housing 1 there is an annular dehumidification chamber. Bearing supports 5 and 6 are mounted in the annular moisture trapping chamber. Bearings are mounted on axles 7- A bandage 9, made of two conical generators, is installed on the periphery of the impeller blades 8. Between the peripheral ends of the blades 8 and the band 9, there is a perforated ring 10, which forms the internal cavity 11 under the band 9. Support and stop surfaces 15 are made on the outer surface of the conical forming 12, 13 band. 15. Outlet windows 16 are made at the top of the band and the band - holes 17 and 18, connecting the internal cavity 11 with radial clearances 19 and 20 in the installation area of the bearing supports. Seals 21 and 22 are installed in the radial clearances 19 and 20. Bearing bearings are located in the chambers of the housing 23 and 2k, which communicate with the volume of the moisture trap chamber 4 through the openings 25 and 26.

The separator works as follows.

The two-phase gas-droplet stream entering the separator passes the guide device 2 and enters the vanes 8 of the impeller. The blades under the influence of inertial forces and centrifugal forces of the rotated gas of the impeller separate the dispersed phase from the gas stream. Separated on the surface of the blades, separated by centrifugal forces, is transported to the periphery, accumulated on the inner surface of the perforated ring 10, and then passes through the perforation into the internal cavity 11 of the bandage. The perforated ring 10 prevents the separator from being discharged back into the interscapular channels of the impeller 3 and removed from the separator. In the internal cavity 11, the conical band 9 is separated under the action of centrifugal forces moving along the walls tc of the outlet ports 16. A part of the separat is retracted into the radial clearances 19 and 20 through the openings 17 and 18, the position and direction of the holes provide a guaranteed supply of the separate to the bearing supports for lubrication cooling of friction surfaces. A separator of bearing supports is accumulated in chambers 23 and 2k and discharged through apertures 25 and 26 into the dehumidification chamber k. The number of bearing supports is determined by permissible loads, and the size of the holes 17 and 18 is determined by the decay of a separate lubricant.

Example. In a separator with an impeller diameter of 500 mm and a weight of 60 kg, with an impeller rotational speed of 1000-1200 rpm, a pressure drop across the wheel of 0.2 kgf / cm2 and irregularity of supplying the working fluid of 30%, three radial single rings are installed on the periphery of the tire bearing no. 307 with a diameter of 80 mm, which perceives the pressure drop across the wheel and the uneven supply of the working fluid and, with the same bearing, take up wheel weight.

This installation of bearings compared to the axial arrangement in the sleeve of the impeller with a width of 70 mm reduces the equivalent dynamic load on the bearings, perceiving the unevenness of the supply by 3.8 times. With an increase in the frequency of rotation of 6.25 times (500: 80 6.25) to 6250 rpm, in accordance with the formula

106, C, R 60-n V

Lh p c

P durability, h; rotational speed rpm; bearing capacity, kgf;

equivalent dynamic load, kgf.

FI.1

P

YU

PhieZ

Claims (2)

Claim 1. A separator for gas purification, comprising a housing with inlet and outlet pipes, a guiding apparatus, an impeller freely rotating in the bearings, a bandage made of two conical generators, and a perforated ring, a peripheral annular moisture trap chamber, characterized in that that, in order to increase the reliability of operation, the bearing supports are installed in the peripheral ring moisture trap chamber opposite the conical generators of the bath, and on the outer surface of the conical generators Nena opornoupornye surface. 2. The separator pop. 1, about l and 15, characterized in that the bandage is made with holes communicating the internal cavity above the perforated ring with bearing bearings. . L-A