RU134076U1 - DEVICE FOR HEAT AND MASS AND ENERGY EXCHANGE - Google Patents

Abstract

Device for heat and mass and energy exchange, containing communicated with each other by partial intersection along the generatrix of at least two vortex tubes and displacers placed inside them, characterized in that the displacers are made with a variable cross section.

Description

This utility model relates to devices for carrying out chemical, physical, chemical and physical processes, namely, devices in which sound or ultrasonic vibrations are used to carry out these processes.

Currently known devices for heat and mass energy exchange, the action of which is based on the deformation interaction of jet streams of media. With this interaction, acoustic excitation occurs, the potential energy is converted into kinetic energy, followed by heat and mass energy exchange of the interacting media (descriptions to RF patents Nos. 2268772, 7B01J 19/10, 01/27/06; 2331465, B01J 19/10 (2006.1), 08/08/08; 2462301, B01J 19/10 (2006.01), 09/27/12)

Closest to the claimed utility model in technical essence is a device for heat and mass energy exchange according to the patent of the Russian Federation No. 2268772) It contains communicated by a partial intersection along the generatrix of two pipes with tangential inputs, displacers placed inside the pipes, and an acoustic chamber. When liquid or gas media are supplied through the tangential inlets into the pipes, vortex-ring flows are formed in the pipes, which flow along a pipe along a spiral path into the acoustic chamber. With all the advantages of this device, it is not without drawbacks: in some cases of its use, it does not provide the intensity of the heat and mass and energy exchange process required by practice at present.

The objective of this utility model is to create a device with a higher intensity of heat and mass energy exchange.

As the studies of the authors have shown, the intensity of heat and mass energy exchange of this device can be increased by lateral deformation of flows passing through its vortex tubes, in which vortex-ring flows are formed.

The problem is solved in that in a device for heat and mass-energy exchange, containing communicated by a partial intersection along the generatrix of at least two vortex tubes and displacers placed inside them, according to a utility model, the displacers are made with a variable cross section.

The technical result of the proposed technical solution is the additional excitation of fluid flows in the area of their contact due to deformation in radial directions in contact with displacers.

In the future, the present utility model is illustrated by a description of the specific, but not limiting, implementation of the utility model and drawings.

Figure 1 shows a schematically proposed device for heat and mass energy exchange, in longitudinal section;

figure 2 shows the block 2 of the device for heat and mass energy with the cover 3 removed, top view; non-digitized circles show the places where displacers 9, 10 are located.

A device for heat and mass energy exchange consists of an inlet pipe 1, a unit 2 with a cover 3, and an outlet pipe 4.

In block 2, two round cylindrical through holes 5, 6 are made, interconnected by a partial intersection along the generatrix. On one of the ends of the block 2, a groove 7 is made, which is located tangentially to the hole 5, and a groove 8, which is located tangentially to the hole 6. The grooves 7, 8 with the cover 3 form the inputs. Holes 5, 6 with inputs form vortex tubes. Displacers 9, 10, made in the form of rods with a variable cross section, are attached to the lid 3, on its lower side. Figure 1 shows, as an example, displacers with the characteristic of changing the cross-sectional area along the displacers in the form of a sawtooth graph. In the assembled device, the displacers 9, 10 are located coaxially inside the holes 5, 6. The space bounded by the other end of the block 2 and the outlet pipe 4 is an acoustic chamber.

The specific dimensions, the characteristic change in the cross-sectional area along the displacers, and the materials from which the proposed device is to be made, are selected during construction depending on the rheological characteristics of the medium (density, viscosity) to be processed.

The process of heat and mass transfer in the device is as follows.

The liquid or gas or their mixture (hereinafter the medium) is supplied under pressure through the inlet pipe 1 and the side channels (shown in figure 2, but not digital) in block 2. In this case, one part of the medium through the inlet formed by the groove 7 enters the vortex a pipe formed by the hole 5. In this pipe a vortex-ring flow is formed, which flows along a pipe along a spiral path into the acoustic chamber. Another part of the medium, through the inlet formed by the groove 8, enters the vortex tube formed by the hole 6. A vortex-ring flow is formed in this tube, which flows along the pipe along a spiral path into the acoustic chamber. The direction of rotation of the flows in figure 2 is shown by arc arrows. In the region of partial intersection of holes 5 and 6, the medium flows in contact with displacers 9, 10 deform in the transverse direction and interact with each other both in radial and axial directions. At the same time, in the indicated area, acoustic resonance excitation, pulsations and cavitation arise, as a result of which heat and mass and energy exchange of the mentioned parts of the medium occurs. Then the excited flows coming out of the holes 5 and 6 enter the acoustic chamber, where they are combined and subjected to additional excitation, then to the outlet pipe 4.

Comparison of the proposed device for heat and mass energy exchange with the well-known, taken as a prototype, showed that the proposed device provides a greater intensity of heat and mass energy exchange.

Based on the proposed utility model, mixers, emulsifiers, dispersants, homogenizers, etc. can be created. equipment.

Claims (1)

A device for heat and mass and energy exchange, containing communicated by a partial intersection along the generatrix of at least two vortex tubes and displacers placed inside them, characterized in that the displacers are made with a variable cross section.

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