SU1725060A2 - Heat-exchange packing - Google Patents

Abstract

Usage: energy, heat engines, heat and mass transfer devices, air cooling and humidification systems. The invention: the nozzle contains a bundle of pipes 1 with gas-permeable porous walls. The ends of the pipes 1 are fastened with flexible strips 2 made with mesh ribs 3. The ribs 3 are located in the gap 4 between each two adjacent pipes 1 row and are oriented at an angle to the axes of the pipes 1, the Ribs 3 are integral with the strip 2 in the form of corrugations. The gas flow and the liquid is passed through the nozzle. When flowing around the ribs 3, the gas flow is turbulized with the formation of macro-vortices on the edges of the flexible strips 2 and the ribs 3. 1 Cp. f-ly, 4 ill.

Description

The invention relates to power engineering and can be used in heat engines, in heat and mass transfer apparatus, in air cooling and humidification systems, and is an improvement of the invention according to the author. No. 1508086.

A heat exchanging nozzle is known, comprising a bundle of pipes with gas-permeable porous walls arranged along screw lines in coaxial rows, the tubes being arranged relative to each other with the formation of gaps and in adjacent rows along oppositely directed screw lines.

A heat exchanging nozzle containing a bundle of pipes with gas-permeable porous walls arranged along helical lines in coaxial rows is known, the pipes are located relative to each other with the formation of gaps and adjacent rows along oppositely directed helical lines, and the nozzle additionally contains at least one flexible strip placed between two adjacent coaxial rows of pipes and fastened to the ends of the latter.

A disadvantage of the known heat transfer nozzle is the low degree of heat transfer intensification.

The purpose of the invention is to increase the intensification of heat and mass transfer by turbulence in the flow of heat-transfer fluid. in adjacent rows along oppositely directed helical lines and additionally containing at least one flexible strip placed between two adjacent coaxial rows of pipes and fastened th latest ends, flexible strip adapted to mesh the ribs disposed in a gap between every two adjacent pipes row and oriented at an angle to the axes of the tubes. In addition, the ribs are integral with the strip in the form of corrugations.

FIG. 1 shows a heat exchange nozzle, general view; in fig. 2 - the same, top view; in fig. 3 — sweep of the heat exchanger nozzle; in fig. 4 - the same, top view.

The heat transfer nozzle contains a bundle of pipes 1 with gas-permeable porous walls arranged along helical lines with coaxial fins. The pipes 1 are arranged relative to each other with the formation of gaps and in adjacent rows along oppositely directed helical lines. The nozzle contains at least one flexible strip 2 located between two adjacent coaxial rows of pipes 1 and

fastened with the ends of the latter. Flexible strips 2 are made with mesh ribs 2 located in the gap 4 between each two adjacent pipes 1 row and oriented at an angle to the axes of pipes 1.

In addition, the ribs 3 are integral with the strip 2 in the form of corrugations.

Heat transfer nozzle works as follows.

When the nozzle is irrigated with a liquid, its droplets fall into the pipes 1 and the gaps 4. In the pipes 1, the drops move along the axis of the latter or fall on the mesh wall, forming a film on it. In the gaps 4 when hit on the ribs of the last 3

are crushed and moved between the pipes 1 or are deposited on their surface. The gas flow entering the gaps 4 as the ribs 3 flow around is turbulized with the formation of macro-vortices on the edges of the flexible bands 2 and

ribs 3,

Invention Formula

Claims (2)

1. Heat transfer nozzle on azt.sv. N ° 1508086, characterized in that, with In order to increase heat transfer intensification by turbulent heat carrier flow, flexible bands are made with mesh fins located in the gap between each two adjacent pipes of a row and oriented at an angle to the axes of the pipes. 2. An attachment according to claim 1, characterized in that the fins are integral with the strip in the form of bumps.