RU2160819C2 - Gear for preparation of solutions - Google Patents

Abstract

FIELD: preparation of technological solutions in oil and gas industries. SUBSTANCE: gear has body, nozzle, ejection chamber, mixing chamber and branch pipes. It is fitted with sleeve having radial holes, bushing, adjustment bar with lug. Lug is mounted in bushing for interaction with nozzle. Vortex forming members are positioned on internal surface of mixing chamber. EFFECT: increased efficiency of dispersion of solution thanks to control over intensity of process of preparation of solution with minimal hydraulic losses. 2 dwg

Description

 The invention relates to devices for the preparation of technological solutions in the oil and gas industry.

 A device for preparing solutions containing a nozzle, a mixing chamber, a funnel and a container is known.

 Liquid is pumped into the mixing chamber through a nozzle, and powder is sucked in from above through a funnel. In this case, the mixing chamber is connected to a container in which dispersing elements are installed in the form of disks made of rods having a semicircle shape in cross section [1].

 Closest to the proposed technical essence and the achieved result is a device for preparing solutions containing a housing, a nozzle, an ejection chamber, a mixing chamber, nozzles, a container and dispersing elements. The dispersing elements are made in the form of disks and gratings formed by cantilever fixed rods [2].

 A common disadvantage of these devices is the loss of pressure on the dispersing elements, the inability to control the process of preparation of the solution and, as a result, the low efficiency of dispersing the solution.

 The problem to which the invention is directed, is to increase the dispersion efficiency of the solution by controlling the intensity of the solution preparation process with minimal hydraulic losses.

 To solve this problem, the known device for the preparation of solutions, including a housing, a nozzle, an ejection chamber, a mixing chamber and nozzles, is equipped with a sleeve with radial holes, a sleeve and a rod with a tip installed in the sleeve with the possibility of interaction with the nozzle, as well as vortex elements placed on the inner surface of the mixing chamber and the chambers forming each other.

 Providing the device with a sleeve with radial holes, a sleeve and a rod with a tip installed in the sleeve with the possibility of interaction with the nozzle, allows you to change the area of the nozzle orifice with a constant value of the passage area of the mixing chamber.

 The supply of the device with vortex elements placed on the inner surface of the mixing chamber will increase the intensity of cavitation in the mixing chamber.

 These signs provide an increase in the dispersion efficiency of the solution by controlling the intensity of cavitation with minimal hydraulic losses.

 We do not know devices for the preparation of solutions that have a combination of the above characteristics, which means that the proposed device meets the requirements for inventions.

 In FIG. 1 shows a device for preparing solutions.

 In FIG. 2 - node I of the device.

 The device for preparing solutions consists of a housing 1, in which a sleeve 3 with radial holes 4 is installed using a sleeve 2. Inside the sleeve there are a nozzle 5, an ejection chamber 6, a mixing chamber 7 and a diffuser 8. In the sleeve 2, an adjustment rod 9 s is mounted on the thread the tip 10, which during the rotation of the rod 9 moves in the axial direction and enters the nozzle 5, while changing the area of its orifice.

 On the inner surface of the mixing chamber 7 are placed vortex elements 11, which form between themselves the chamber 12 (Fig. 2).

 The housing 1 has nozzles 13 and 14.

 The device operates as follows.

 The working fluid (dispersion medium) under pressure enters through the nozzle 13 and the radial holes 4 of the sleeve 3 into the nozzle 5 and is formed into a jet, which creates a vacuum in the ejection chamber 6, into which powder or liquid (dispersed phase) is sucked through the nozzle 14.

 A liquid jet captures the powder and rushes into the mixing chamber 7, in which a cavitation zone is formed, as a result of which intensive mixing and dispersion of the two phases occurs and their further flow through the diffuser 8 as intended.

 It is known that the cavitation process in the mixing chamber 7 depends on the ratio of the passage areas of the nozzle 5 and the mixing chamber 7, and the cavitation intensity increases with this ratio.

 To change the area of the orifice of the nozzle 5 rotate the rod 9, which moves in the axial direction. In this case, the tip 10 enters the nozzle 5, changing the area of its passage section.

 Changing the area of the orifice of the nozzle 5 using the rod 9 with the tip 10, with a constant value of the area of the orifice of the mixing chamber 7, allows you to adjust the cavitation intensity over a wide range with a constant flow of the working fluid.

 Increasing the intensity of cavitation also contribute to the chamber 12 formed by elements 11 located on the inner surface of the mixing chamber 7.

 The proposed device, due to the possibility of changing the area of the nozzle orifice without stopping the process of preparing the solution and disassembling the device, provides adjustment of the cavitation intensity in the mixing chamber and thereby increases the dispersion efficiency of the solution.

Sources of information
1. Auth. St. USSR N 618528 cells E 21 B 21/00, published 05.08.78.

 2. Auth. St. USSR N 952305 class. At 01 F 1/00, published 08/23/82 (prototype).

Claims (1)

 A device for preparing solutions containing a housing, a nozzle, an ejection chamber, a mixing chamber and nozzles, characterized in that it is equipped with a sleeve with radial holes, a sleeve and a rod with a tip installed in the sleeve with the possibility of interaction with the nozzle, as well as vortex elements placed on the inner surface of the mixing chamber.

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