SU1474437A1 - Heat-exchanger - Google Patents

Abstract

The invention makes it possible to intensify heat exchange and increase the operational reliability of heat exchangers by ensuring uniform distribution of the liquid heat carrier phase through the pipes. The distribution manifold houses a distribution device made in the form of a system of perforated corrugated tapes installed obliquely between rows of pipes 2 with adjoining to the tube plate concave parts 5 corrugations in the zones of the lower forming inner surfaces of pipes 2 of their row. The perforations 6 in the ribbons are made in convex portions 7 of the corrugations, and the flow area of the perforations 6 in the corrugations is variable from tape to tape, decreasing from top to bottom. The gas-liquid coolant supplied to the distributing collector falls on the corrugated belts, passes through the perforation 6 and, evenly distributed over the cross section of the tube bundle, enters the heat exchange tubes. 2 Il.

Description

Phie.1

Claims (1)

Claim A heat exchanger containing a bundle of horizontal heat exchanger tubes fixed in tube boards connected to a distributing collector and placed in the latter distribution device in the form of a system of guides made with perforations and corrugations and installed obliquely between rows of pipes adjacent to the tube plate, characterized in that , in order to intensify heat transfer and increase operational reliability by ensuring uniform distribution of the liquid phase of the coolant through the pipes ying a single row of tubes for the respective belts adjacent concave portions of the corrugations in the lower zones forming the inner surfaces of the tubes of its range, wherein the perforations formed in convex portions with corrugations alternating from tape to tape flow section that decreases downwards. Figure 1