SU1015236A1 - Heat exchanger - Google Patents

Abstract

A HEAT EXCHANGER, containing a housing and a heat exchange nozzle located therein, consisting of flat plates alternating with corrugated inserts to form continuous and alternating intermittent channels separated by impermeable partitions, in order to increase the reliability of the partitions made of two parts, installed with a gap of one relative to another with the formation of buffer cavities communicated with the external environment. K i (L

Description

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The invention relates to plate heat exchangers and can be used in the chemical industry. Heat exchangers are known that contain a housing and an assembly located therein, consisting of heat exchange elements forming continuous and alternating intermittent channels 1. The disadvantage of these heat exchangers is the possibility of displacing the working media flowing through adjacent groups of intermittent channels. A heat exchanger is also known, comprising a housing and a heat exchange nozzle arranged therein, consisting of flat plates alternating with corrugated inserts to form continuous and alternating intermittent channels separated by impermeable partitions into sections 2. A disadvantage of the known heat exchanger is its low reliability. The purpose of the invention is to increase reliability. This goal is achieved by the fact that in the heat exchanger containing the casing and the heat exchange nozzle located therein. consisting of flat plates alternating with corrugated inserts to form continuous and alternating with them. intermittent channels separated by impenetrable partitions into sections; partitions are made of two parts, each installed with a gap relative to the other with the formation of buffer cavities communicated with the external environment. FIG. 1 shows the proposed heat exchanger, longitudinal section; in fig. 2 is the same, a section along the discontinuous channel of FIG. 1. The heat exchanger comprises a casing 1 and a heat exchange nozzle arranged therein, consisting of flat plates 2 alternating with corrugated inserts 3 to form continuous and alternating intermittent channels 4 and 5 separated by impermeable partitions 6 into sections 7. Partitions 6 are made composite two parts 8 and 9, installed with a gap of one relative to another, with the formation of buffer Lolost 10, communicated with the external environment through Shtutserov I. The heat exchanger is equipped with manifolds supply 12 and outlet 13 working Wed rows in continuous channels 4 and respective collectors 14 and 15 - in discontinuous 5. The heat exchanger operates as follows. One of the working media enters the non-P Torn channels 4 through the collector 12. At the same time, in each successive section 7 through the collectors 14 the working media enter intermittent channels 5. Passage through channels 4 and 5, the working media exchange heat through the plates 2 and collectors 13 and 15 is removed from the heat exchanger. In this case, in the event of depressurization of one of the parts 8 and 9 of the partitions 6, the working medium flowing through the discontinuous channels 5 enters the buffer cavity 10 which can be filled with inert gas and through the nozzle 11 is removed from the heat exchanger. At the same time, the possibility of mixing the working media flowing through the discontinuous channels 5 in the adjacent sections 7 is excluded, which increases the reliability of the proposed heat exchanger.

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Claims (1)

A HEAT EXCHANGER comprising a casing and a heat exchange nozzle disposed therein, consisting of flat plates alternating with corrugated inserts to form continuous and alternating intermittent channels divided by impermeable partitions into sections, characterized in that, in order to increase reliability, the partitions are made made up of two parts installed with a gap relative to one another with the formation of buffer cavities, with 05>