SU1444612A1 - Shell-and-tube heat exchanger - Google Patents

Description

(21) 4198804 / 24-06

(22) 26.02. 87

(46) 12/15/88. Bul № 46 (72) V.G. Baron, T.G. Bunin and I. Yu. Sofiysky (53) 621.565.94 (088. 8)

(56) USSR Author's Certificate No. 556304, cl. F 28 D 7/00, 1973.

. (54) SHELL-TUBE HEAT EXCHANGER

(57) The invention allows to reduce the mass and size characteristics of the heat exchanger. The cavity of the heat exchange tubes placed in the casing 1 in each of the sections 2, 3 is connected with the annular space of the adjacent section. Section 2, 3 are separated from one another by a partition 4 with fixed in it

sections. A perforated shell 5 is placed between the casing 1 and the tube bundle. The pipes in adjacent sections are mutually perpendicular and in section 2 are fixed in the perforations of the shell 5, the space between the casing 1 and the shell of section 2 is divided by two longitudinal diametrically located partitions into the input and output cavities. . The partition 4 between the sections 2, 3 in the zone of the exit cavity is provided with a overflow window 7. The shell in the area of the partition between the sections m. B. made detachable. As a result of this arrangement, the same heat exchange conditions for the heat exchanging media are ensured and the weight and size characteristics of the heat exchanger are reduced at the same time. I h. item f-ly, 2 ill.

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The invention relates to heat exchangers and can be used in chemical, petroleum and power engineering.

The purpose of the invention is to reduce the mass-size characteristics.

FIG. 1 shows the proposed shell-and-tube heat exchanger; in fig. 2 is a section A-A in FIG. one.

The heat exchanger contains two sections / 2 and 3 bundles of heat-exchange tubes placed in the casing 1, the cavity of which in each section is connected to the annular space of the adjacent section. Sections 2 and 3 are separated from one another by a partition 4, in which the pipes of section 3 are fixed. Between the casing 1 and the tube bundle, there is additionally placed a perforated shell 5, made detachable in the zone of the partition 4. The pipes in sections 2 and 3 are mutually perpendicular, and in section 2 the pipes are fixed in perforations of the shell 5. The space between the casing 1 and the shell in the area of section 2 is divided by two longitudinal diametrically located partitions 6 on the inlet and outlet cavities. The partition 4 between sections 2 and 3 of the tube bundle in the area of the exit cavity is provided with an overflow window 7. The heat exchanger is also equipped with nozzles 8, 9 and 10, 11 for the supply and removal of heat exchanging media.

The heat exchanger operates as follows.

One of the heat exchanging media is supplied through the pipe 8, passes through the heat exchange tubes of the beam section 2, then flows through the overflow window 7 into the section 3, is evenly distributed in the annular space of this section by means of

the shell 5 and washing the pipe from the outside, is removed from the heat exchanger through the pipe 10. The second medium enters the heat exchanger through pipe 9, washes the pipes of section 2 from the outside and passes further through the pipes of section 3, from where it is removed through pipe 11. During circulation heat exchanger between them is heat exchange.

The use of the invention makes it possible to provide the same heat exchange conditions for heat exchanging media and at the same time to reduce the weight and size characteristics of the heat exchanger.

Claims (2)

1. A shell-tube heat exchanger containing a partitioned bundle of heat-exchange tubes placed in the casing, the cavity of which in each section is connected to the annular space of the adjacent section, and the sections are separated from each other by a partition with tubes fixed in it, in order to reduce the weight and size characteristics, Between the casing and the tube bundle there is an additional perforated shank, the pipes in the adjacent sections are mutually perpendicular and in one of them are fixed in the perforations of the shell, a space of between the shell and the shell section of the divided two longitudinal diametrically spaced partitions into inlet and outlet cavities, and the partition between the sections in the outlet cavity zone provided with overflow windows. 2. A heat exchanger according to claim 1, characterized in that the shell in the area of the partition between the sections is made detachable.