SU1736546A1 - Device for dewatering and demineralizing oil - Google Patents

Abstract

The invention relates to devices for desalting and dehydrating oil and can be used in systems for the collection and preparation of oil. The aim of the invention is to increase the efficiency of the process and reduce the consumption of reagent. The device contains a main pipe, a descending collector and an additional collector installed along the axis of the pipe and made in the form of a cylinder with openings on the side surface. Plates located radially are connected to the additional collector between the holes. 1 з.п f-ly, 3 silt

Description

The invention relates to devices for desalting and dehydrating oil and can be used in systems for collecting and treating oil in the fields.

The aim of the invention is to increase the efficiency of the oil dehydration and desalting process and to reduce the consumption of reagent.

Figure 1 shows the device, a general view; figure 2 - section aa in figure 1; Fig. 3 is an enlarged view of a portion of the cross section in Fig. 2.

The device contains a main pipe 1, a distributor for water supply, made in the form of nozzles 2, placed on the side surface of the pipe 1. Coaxially to the main pipe 1, an additional collector 3 is installed, made in the form of a cylinder, on the side surface of which are located 4 openings. located in the cavity of the collector 5, which surrounds the main pipe 1. The collector 5 is equipped with

The flush water nozzle 6, plates 7 are attached to the additional collector 3 between the holes 4, the number of which is equal to the number of holes 4 of the additional collector 3. The plates 7 are located along the radii of the cross section of the pipe 1 the center of which coincides with the center of the body of the figures 8 formed by the adjacent plates 7 and the side surfaces of the additional collector 3 and the main pipe 1. The axes of the pipes 2 and the holes 4 of the adjacent figures 8 are relative to conventional m 9 unidirectional circles

The device works as follows. Oil is transported through the main pipe 1. Flushing water through the pipe 6 enters the collector 5, as well as into the additional collector 3 installed coaxially with the main pipe 1. From the holes 4 and the pipes 2 the flushing water enters the oil stream as a system

X |

s about

Ch

central and peripheral transverse jets. In this case, jets are supplied chordally, i.e. at an angle to the radius of the cross section of the pipe 1, the oil flow before the input section of the washing water due to the installation of the plates 7 is divided into several parts, each of which the washing water flows tangentially to the conditional circle 9, the center of gravity of which the tin of figure 8. At the same time, parts of the mixture flow acquire a tangential velocity component (twisted). Downstream (behind the installation site of the plates 7) separate parts of the stream interact with each other. Spin-up of parts of the mixture flow and the same direction in its neighboring parts determine the achievement of a high level of shear velocity in the mixing zone and an intensive mass exchange of interacting media — water and oil.

Comparative tests of the proposed technical solution and the prototype were carried out in a wide range of design and mode parameters: n, 10-0.20, 01-0.04, 02-0.04, dy 0-0.70. Here

Lg dOT d0 GB

R

G, O:

, n2 R io 2 ry w GB + GH number of holes and nozzles, d - diameter, R - radius, G - mass flow rate. The indices of y - conditional circle, from - hole, in - flushing water, n - oil. In the whole range of parameters considered, the effectiveness of the proposed e0

five

0

five

0

It is higher, which allows reducing the consumption of washing water in the proposed device.

Claims (2)

1. A device for desalting and dehydrating oil, including a main pipe in which a distributor is placed in the form of nozzles, connected to a collector that surrounds the main pipe and an additional collector installed along the axis of the main pipe, made in the form of a cylinder with openings on the side surface, characterized in that, in order to increase the efficiency of the dewatering and desalting of oil and reduce the consumption of reagent, the device is equipped with plates attached to an additional between the holes and radial cross sections of the pipe, the number of plates is equal to the number of holes of the additional collector, and the axes of the pipes and holes are tangent to conventional circles whose center coincides with the center of gravity of the figures formed by adjacent plates and side surfaces mi additional collector and trunk pipe. 2. Device pop. 1, characterized by the fact that the axes of the holes and nozzles of adjacent figures are unidirectional with respect to conventional circles. ; FIG. 2