SU929229A1 - Centrifugal machine for separating three-component liquid mixture - Google Patents

Description

A light liquid removal device comprising a radial Pitot tube according to the invention; a light liquid removal device is provided with a mechanism for moving the Pitot tube containing a chamber inside it with a spring-loaded piston rigidly connected to the Pitot tube, the chamber communicating through the static pressure tube with heavy liquid area.

FIG. 1 shows a centrifuge / figure 2 - a device for removal of light liquid.

The centrifuge contains a rotor 1 having a nozzle 2 for supplying the initial mixture, a nozzle 3 for evacuating the gas, a device C for evacuating a light liquid, and a nozzle 5 for evacuating a heavy liquid.

The device for removal of light liquid has an axial tube b, communicated with a radially located Pitot tube 7.

The pitot tube 7 is provided with a mechanism for moving it, comprising a chamber 8, having an opening 9 and communicating through the static pressure tube 10 with an area 11 of radius R of the location of a heavy liquid. Inside the chamber 8, there is a spring 12 and a piston-13, rigidly connected to the pitot tube 7 by means of the lead N.

In order to prevent mechanical impurities from entering the chamber 8, the static head tube 10 is equipped with a filter 15B in the centrifuge also shows zone 1b with radius R2 for the location of light liquid and zone 17 for radius R for gas.

Centrifuge works as follows

in a way.

I

Oil from a well under pressure enters through the nozzle 2 into rotor 1. In the rotor 1, centrifugal forces and density differences of coponents result in the separation of oil from the well into phases: gas, oil and water with mechanical impurities.

The gas from the rotor 1 exits through the nozzle 3, the inlet with mechanical impurities through the nozzles 5, the liquid (oil) is light through the device k

With a non-constant supply of the components of the initial mixture to the rotor 1, the interfaces between phases 16 and 17 change.

When changing the thickness of the liquid layer in the rotor 1, i.e. the differences R, Rjjj- R, R2, change the pressure at the inlet of the static pressure tube 10.

Thus, as the gas volume increases, the pressure at the inlet of the tube 10 decreases and in the chamber 8 the piston 13 moves towards the periphery of the rotor 1, and with it

the leash 14 moves the Pitot tube 7.

When increasing the amount of water with mechanical impurities, the pressure at the inlet of the tube 10 increases, and the piston 13 in the chamber 8 moves towards the center of the rotor 1, and with it by means of the leash 14 and the Pitot tube 7.

The length of the pitot tube is determined by calculation for the average value of the concentration of the components in the mixture.

Thanks to the proposed constructive implementation of the device selection

light liquid provided selective selection of the component of the liquid three-component mixture when changing the number of components, which improves the operating properties of the centrifuge.

invention formula

Centrifuge For separating a three-component liquid mixture of predominantly oil from wells, including a rotor. nozzles for the supply of is-. gas mixture and a gas outlet and a device for draining a light liquid containing a radially located pitot tube, characterized by

the fact that, in order to increase reliability when changing the number of components a mixture, the device for removal of light liquid is equipped with a mechanism for moving the tube

A pitot containing a chamber located inside it is a spring-loaded piston rigidly connected to the pitot tube, while the chamber is in communication with

Claims (1)

Claim . A centrifuge for separating a ternary liquid mixture of predominantly oil from wells, including a rotor c. branch pipes for supply is-. a mixture of gas and exhaust gas and a device for draining light liquid containing a radially located pitot tube, characterized in that, in order to increase the reliability when changing the number of components in the mixture, the device for draining light liquid is equipped with a mechanism for moving the pitot tube containing a chamber, the spring-loaded piston located inside it, rigidly connected to the pitot tube, while the camera is communicated through a static pressure tube with a zone of heavy liquid, class.