SU1000107A1 - Hydraulic cyclone - Google Patents

Description

(54) HYDROCYCLONE

The invention relates to oil production and can be used for separating the production of oil wells into oil, water and sand, for separating coarsely dispersed organic mineral impurities from wastewater and formation water, de-bleaching the drilling fluid in closed circulation systems, as well as in other industries in the separation and sorting of solid materials by size with the help of liquids, with a section-. Research institutes of immiscible liquids such as oil - water.

A separator for separating sand from a product extracted from oil wells, containing a cylindrical body, an inlet pipe and a distributor tl, is known. The disadvantages of a separator are the need to have gas produced in the separation section when counter pressure is applied at the outlet of the separator. which is required for its effective work .:

The use of this hydrocycpone; It is impossible if there is a back pressure or at the outlet, since a small amount or absence of free gas in the composition of the production of the well and counter pressure at the outlet of the pipeline and its open upper end together with oil enters sand, i.e. sand separation does not occur. Water is not separated from the oil either.

Closest to the proposed

10, by its technical essence and the achieved result, there is a separator containing a vertical casing with a bottom and a supply nozzle, placed coaxially inside the drain

15 nozzle a sand nozzle with a conical socket at the bottom, facing 4 with a large base to the bottom of the body t2.

A disadvantage of the known device is the impossibility of using it for separating products containing gas. .

The purpose of the invention is to increase the efficiency of the separation of the water-oil suspension.

The goal is achieved by the fact that in a hydrocyclone containing a vertical body with a bottom and a power supply pipe, a coaxial pipe is placed inside the drain pipe

A sand nozzle with a conical bell B of the lower part with a large base facing the bottom of the housing; the sand nozzle is equipped with an additional conical socket with holes at its smaller base placed above the main conical frame, which is formed with holes that are uniformly arranged along its surface.

  It is advisable to drain and sand pipes to provide locking and regulating devices.

The drawing shows a hydrocyclone, a general view.

A hydrocyclone consists of body 1, cover 2, power supply 3, drain 4 and sand 5 nozzles, locking and regulating devices b and 7, conical. 8 with holes 9 and conical. 10 with holes H arranged to form it evenly. .

The housing 1 with an inner cylindrical surface has an elliptical bottom and an opening that provides the feed of the original product tangentially to the cylindrical wall by means of a feed nozzle 3. In the central part of the cover 2, a drain nozzle 4 is installed to release a light fraction of the product.

Sand pipe 5 coaxially installed along the axis of the drain pipe and is located at the bottom.

The device works as follows.

As a result, the product is fed into the housing 1 through the feed nozzle 3 and tangentially to the cylindrical wall and as a result of unloading products through centrally located holes, the product rotates at high speed and under the action of centrifugal force exceeding the gravity force, classification is carried out. Large and heavy particles are concentrated near the walls of the housing 1 and, having made a screw movement through the gap between the conical sockets 8 and 10 of the sand nozzle and the wall of the housing 1, fall into the bottom of the housing and, in the form of condensed sand, are carried through the sand nozzle and the main part of the liquid along with small and light particles is carried through the drain pipe 4. The fluid content in the sand product is regulated and the solids content in the product leaving the water pipe is regulated by changing the flow through the sand and

drain connections with locking devices b and 7.

In case of insignificant content of solid in the initial product, the unloading of the sand product takes place as it accumulates in the lower part of the body, periodically opening the shut-off and regulating device 7.

In the closed position of the shut-off control device 7, particles of solid, falling into the lower part of the body, accumulate in it. The presence of conical sockets 8 and 10 of the sand nozzle ensures that the liquid is expelled from the lower part of the body as the solid component accumulates there due to the presence of holes 9 and 11 in the conical sockets 8 and 10, and separates the accumulation zone from the flow leaving into the discharge nozzle.

By equipping the sand pipe with conical sockets - with holes and equipping the drain and sand pipe with shut-off and regulating devices, operational parameters of the optimal separation modes in the hydrocyclone are achieved, which ultimately leads to an increase in the efficiency of water-oil suspension and an increase in productivity by 60 %

Claims (2)

1 .. A hydrocyclone containing a vertical body with a bottom and a power supply nozzle, placed coaxially inside the drain nozzle, a sand nozzle with a conical socket in the lower part, with a large base facing the bottom of the body, is also distinguished by the fact that, in order to increase the efficiency of the sand nozzle is provided with an additional conical socket with holes at its smaller base, placed above the main conical socket, made with holes evenly spaced along its generatrix. 2. A hydrocyclone according to Claim Sources of information taken into account in the examination 1. Patent SZPA number 3726.068, cl. 55-421,1973. 2. US patent 3288286, class 209-21 1966.