SU1514411A1 - Centrifuge for purifying liquids - Google Patents

Description

The invention is intended for the purification of liquid mixtures with dissolved gases. The aim of the invention is to improve the cleaning performance. The centrifuge includes a housing with a nozzle input of the original product and nozzles output gaseous, heavy and light liquid phases. The centrifugal rotor is conical and consists of located one above the other with the formation of annular slots of the conical shells, inside of which there are rings installed in bearings on a stationary shaft. The shells and rings are rigidly interconnected by a spiral guide, with which they form a spiral conical chute. Due to the independent rotation of the rings, the friction of the flow in the chute is insignificant, which allows achieving high cleaning performance in centrifuges of various sizes. 2 Il.

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The invention is intended for cleaning

liquid mixtures with gas dissolved in them and can be used in oil-producing and other industries.

The purpose of the invention is to increase productivity.

FIG. 1 schematically shows a centrifuge, a general view; in fig. 2 - the same, axial section.

The centrifuge includes a housing 1 with a tangentially located pipe 2 of the input of the original product, pipe 3 output gaseous fraction and pipe 4 output heavy liquid phase. In the cavity of the housing 1, at its base 5, a fixed hollow shaft 6 is fixed with a branch pipe 7 for draining the light liquid phase. On the shaft 6 there is a conical rotor 8, consisting of one arranged above the other with the formation of annular slots of conical shells 9. Inside the shells 9 are conical rings 10 mounted on the shaft 6 using bearings 1 1 and 12. Shells 9 are rigidly connected to spiral rings 10 guides 13, forming with shells 9 and rings 10 spiral conical chute 14 over the entire height of the rotor 8.

The centrifuge works as follows.

The pressure of the initial product is tangentially introduced into the body 1 through the pipe 2. The flow of the original product, falling into the chute 14, twists in a spiral and rushes up along the guide 13. As the gutter passes, the flow velocity increases. The independent rotation of the rings 10 at the same time significantly reduces the friction of the flow on the surface of the chute due to the small difference in the angular flow rates and the rings K).

In the process of rotation of the flow, mainly in the lower turns of the chute 14, under the action of centrifugal force, heavy liquid fraction is released, rushing into the gap between the shells 9. The separated liquid accumulates in the lower part of the space between the housing 1 and the rotor 8 and through the nozzle 4 is drained from the centrifuge. In the upper turns of the chute 14. where the flow rate is sufficiently high but there is a gas separation, which is discharged through the nozzle 3. The liquid purified from gas and heavy fraction is drained from the chute 14 into the upper part of the space between the housing 1 and

, 5 by the rotor 8 and is removed from the centrifuge through the pipe 6 through the nozzle 7.

The use of the invention allows to create centrifuges of high performance with the necessary efficiency of the process of cleaning liquids.

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Claims (1)

Claim A centrifuge for cleaning liquids, comprising a housing with a tangentially located feedthrough inlet pipe, a fixed hollow shaft with openings for outputting a light phase, and a rotor mounted on the shaft, characterized in that, in order to improve performance, the rotor is conical and consists 30 of conical shells located one above the other with the formation of annular slots for removal of the heavy phase, while inside each shell are placed conical rings mounted on the shaft with the possibility of independent rotation under the action of the incoming fluid flow and rigidly connected with the shells by spiral guides, and the shells , rings and guides form a spiral conical chute over the entire height of the rotor. [’