SU832304A1 - Shell-and-tube heat exchanger lateral-partition sealing arrangement - Google Patents

Description

one

The invention relates to shell and tube heat exchangers, specifically to sealing devices of their transverse partitions.

Known sealing devices D.LIA transverse pegoro.tski shell-and-tube heat exchanger, containing an elastic cuff installed along the perimeter of the partition in contact with the inner surface of the casing fl

The disadvantage of the indicated devices is their lack of tightness when operating in high temperature conditions and in the case of manufacturing a casing with a non-tinted or uncalibrated inner side surface, which reduces the intensity of heat transfer.

The purpose of the invention is to intensify heat transfer.

This goal is achieved by the fact that the cuff is made in the form of a thin-walled shell, the surface of which, facing the casing, has cuts with holes at the bases, and the petals formed between the cuts are bent towards the casing with the formation of pockets along the perimeter of the casing. In this case, the cuts are located in increments equal to 1 / 15-1 / 20 of the diameter of the partition, and the plugs are placed in the holes of the notch.

FIG. 1 shows a heat exchanger with the proposed sealing device, a general view; in fig. 2 is a sealing device, a general view of FIG. 3, a section A-A of FIG. one; Fig, 4-sealing device in the process of its installation in

0 heat exchanger cover.

A sealing device for a transverse partition 1 of a shell-and-tube heat exchanger contains an elastic collar 2 installed along the perimeter of the partition 1 in contact with the inner surface of the shell 3, made in the form of a thin-walled shell, the surface of which is facing 4 with holes 0 and 5 at the bases, the petals 6 formed between the notches 4 are bent towards the casing 3 to form pockets 7 along the perimeter of the pockets 7. The notches 4 are located, p. in increments equal to 1 / 15-1 / 20 of the diameter of the partition 1, and in the holes 5 of the cuts 4 there are placed plugs 8 made of wire. For the passage of the working medium through the partition 1, a notch 9 is made in it. Partition 1 is made

on with a diameter smaller than the diameter of the casing 3, and together with a fixed

its perimeter cuff 2 is installed on the tube bundle 10.

Before installing the tube bundle 10 with the dividing line 1 and the cuff 2 installed in the casing 3, the petals b are bent towards the casing 3 1 / 80-1 / 100 of the diameter of the latter, after which the bundle 10 with the partition 1 and the cuff 2 into the casing 3 from the side of the base of the cuff 2 attached to the partition 1. At the same time, the petals b have a direction opposite to the direction of the working medium of the annular space and create a selective elastic seal between the partition 1 and the casing 3, the tightness of which additionally increases due to the plug and 8 and pockets 7, and the flow of the working medium of the annular space is carried out only through the slot 9, thereby increasing the intensity of heat exchange and, in addition, due to the small thickness of the cuff 2, the dimensions of the heat exchanger Phi &

Claims (3)

1. Sealing device for a transverse partition of a shell-and-tube heat exchanger containing an elastic cuff installed along the perimeter of the partition in contact with the inner surface of the casing, characterized in that, in order to intensify heat exchange, the cuff is made in the form of a thin-walled shell, the surface of which is reversed to the casing, has cuts with holes y. bases, and the petals formed between the incisions are bent toward the casing with the formation of pockets around the perimeter of the shell. 2. The device according to claim 1, characterized in that the cuts are arranged in increments of 1/151/20 of the diameter of the partition. 3. The device according to claim 1, characterized in that plugs are placed in the holes of the incisions. Sources of information taken into account in the examination 1. USSR author's certificate No. 531994, cl. F 28 F 9/02, 1974. Cfs. FIG. / c.