SU1674940A1 - Foam generator - Google Patents

Abstract

The invention relates to foam generators used in geological exploration. It provides high-quality foam by spraying fine air in a working medium to form bubbles of uniform size. The foam generator includes a housing 1 with connections for supplying 2 and 3 of the ejected and working media, respectively, as well as a drain 4 of the mixture. Inside the housing there are partitions with a sl a 2 o-U o

Description

Formation of a tube around them. The tubes O are fixed on the partitions and connect the cavity of the branch pipe 3 supplying the working medium (submersible with a foaming agent) and the steam bleed A to remove the mixture. Flexible perforated elements 10 with plugs at the ends are fixed between the tubes and the lower partition. The elements communicate the cavity between the additional bulkheads with the cavity of the outlet pipe of the mixture. The perforations of the flexible elements are made obliquely along the movement of the working medium. During operation, the elements 10 vibrate, contributing to the dispersion of the components. 1 hp f-ly, 2 ill.

The invention relates to foam generators during exploration.

The purpose of the invention is to improve the quality of the resulting penalty by fine crushing of the ejected medium in the working environment,

Figure 1 shows the foam generator; Fig. 2 shows the structure of the perforated tube elements and the variant of their attachment to the partition.

The foam generator (figure 1) had a housing 1 with nozzles for supplying the ejected medium (air) 2 and the working medium 3 (surfactant solution). Depending on the power and speed of the jets of the liquid and gaseous components of the foam, they can be either ejected or working medium and, accordingly, they are supplied to the axial (3) central or lateral (2) nozzles. In this embodiment, the more intense jets are jets of the surfactant solution, which is the working medium. For removal, the mixture serves as an axial nozzle 4. Inside the case, one perforated partition 5 is installed to pre-form the surfactant flow and two additional partitions (upper 6 and lower 7). Partitions 6 and 7 are placed on both sides of the nozzle 2 under the water of the ejected air. In order to communicate the cavity of the nozzle 3 for supplying surfactant with the cavity of the nozzle 4 for removing the mixture, perpendicular to the partitions b and 7, tubes 8 are installed, having through-holes 9. Tubular perforated elements 10 of flexible material are fixed to the lower additional partition 7. Through the cavities 11 of these nozzles and their perforations 12 (FIG. 2), the chamber 13, formed by partitions 6 and 7, communicates with the cavity of the nozzle 4 to drain the mixture. The ends of the flexible tubular elements 10 are made free and provided with plugs 14. The holes 12 in the walls of the flexible tubular elements 10 are made radially and at an angle to the direction of movement of the SAW workflow.

The fastening of the ends of the tubular perforated elements 10 to the lower partition 7 can be carried out using thread, soldering, welding or glue.

The foam generator works as follows.

A spout stream is supplied to nozzle 3. which is evenly divided into jets by the Biv partition as a high-speed jet leaves the holes 9 between the tubular elements 10. At the same time, air enters the nozzle 2. From the pipe 2, the air passes into the chamber 13 and then through the cavities 11 of the tubes and their perforations 12 in the form of small streams are ejected between the flexible tubular elements 10. With this supply of both surfactant and air, a complex transverse oscillation of the tubes occurs, which contributes

intensive crushing of air jets and

Surfactant with obtaining fine foam.

Submission of foam of such quality at the bottom

wells contributes to a better cleaning of the production of sludge.

Claims (2)

1. A foam generator comprising a housing with axial nozzles for supplying one medium and discharging the mixture, inside which two partitions are installed to form a chamber connected to a source of another medium, tubes installed in the partitions and communicating the axial nozzle for supplying the medium with the outlet nozzle This is due to the fact that, in order to improve the quality of the foam by finely crushing the ejected medium in the working medium, it is equipped with tubular perforated elements made of flexible material, cantilevered between the tubes in the partition facing the pipe outlet mixture. 2. The foam generator in accordance with claim 1, wherein the tubular aperture is provided with end caps at the free ends. 12 FIG. 2