SU985704A1 - Transverse guiding partition of shell-and-tube heat exchange - Google Patents

Description

The invention relates to structural elements of heat exchangers and can be used in any industry and, in particular, in air coolers of compressor machines.

A transverse, multi-layered guide partition is known, one of the layers of which is made elastic with an outer diameter larger than the inner diameter of the case.

The disadvantage of this partition is that the material from which the elastic layer is made (various types of rubber or plastics based on polyvinyl chloride resin) loses elasticity when exposed to aggressive media and temperatures for a long time. Therefore, these partitions cannot be used in air coolers of compressor machines g so k5k in the latter reaches the temperature of the deflector reaches. takes part in the process of heat exchange. As a result, due to a decrease in the rate of the heat transfer medium participating in the heat exchange, heat transfer deteriorates and there is an undercooling (underheating) of the heat transfer fluid.

In order to reduce overflows at high temperatures, the heat sink tries to reduce annular gaps between the 10 partitions and the casing due to tighter manufacturing tolerances. This greatly increases the complexity of manufacturing the heat exchanger, complicates the process

15 assembly and leads to unjustified, the consumption of materials for the manufacture of partitions.

The transverse shell-and-tube baffle wall is also known.

20 of the heat exchanger, containing the clamping elements and located between them, the outer seal of the kmcee-ring with the portion 12 protruding beyond the elements.

25

Claims (2)

The disadvantage of this partition is that it can be used in heat exchangers with a limited range of coolants. In addition, it is non-technical in manufacturing. 3 The purpose of the invention is to increase the reliability and efficiency of the partition. This goal is achieved by the fact that in a known transverse guide wall of a shell-and-tube apparatus containing clamping elements and an elastic sealing ring placed between them with a portion extending beyond the elements, extending beyond the elements. the rings are uniformly deformed in the radial direction, and the ring is made multi-layered, in each layer with a given step around the perimeter of the ring there are radial notches displaced in adjacent layers one relative to the other. In addition, each layer is made up of separate sectors that are offset from one another in adjacent layers. - In FIG. 1 shows a part of the heat-20 exchange apparatus with the proposed partition) in FIG. 2 - partition, in plan (option with radial cuts); in FIG. 3, the same (option is made of separate sectors); 25 in FIG. 4 - the same longitudinal section. The transverse guiding wall of the shell-and-tube heat exchanger contains clamping elements 1 and 2, the elastic sealing ring 3,30 made of multilayer, with. displaced in the layers one above the other. Each layer 5 and b can be made of individual sectors 8 that are offset from each other in adjacent layers x.40. The partition 9 has an opening 9 for pipes 10 placed in the casing 11. The elastic sealing ring 3 is made of a thermal and corrosion-resistant material 45, for example, nickel or titanium foil. The clamping element 1 is made with an outer diameter smaller than the outer diameter of the clamping element 2 in order to prevent residual deformation of the protruding section 4, which is rounded so that when installing the tube bundle 10 in the casing 11, the peripheral edge of the section .55 In order to economically cut the ring and speed up the assembly process of the 44 partition walls, the ring layers are made of separate sectors fastened with spot welding, during the assembly process of the heat exchanger in section 4, it bends towards hole 9. Due to radial cut sections, section 4 of elastic ring is pressed tightly against the inner wall of casing 11 without forming radial corrugations. During operation of the heat exchanger, heat flow pushes section 4 against casing wall 11, while compressing force senses the element 2 larger diameter, which allows to eliminate residual deformations in layers 5 and 6. In addition, when the coolant moves in the annular space, the annular gap between the guide wall to the inner wall Koichupplexing due to the presence of displaced radial cuts in the layers of the ring, which leads to an intensification of heat exchange and an increase in compactness by 10–15%. Claim 1 Cross-section guide wall of a shell-and-tube heat exchanger containing support elements 4 and placed between the elastic sealing ring and the elemental elements of the parts, of them are; Scha -with, in order to increase ya-; Reliability and efficiency g protruding beyond the limits of the elements of the ring section are uniformly deformed in the radial ° direction, while the ring is made multi-layered, in each layer with a given step around the perimeter of the ring there are radial cuts displaced in the adjacent layers one relative of the other, 2. . 1 about t l and so that each layer is made up of separate sectors, offset from each other in; adjacent layers, Sources of information, taken into account during the examination 1. Shell-and-tube oil coolers - GTU and compressor machines. - Power equipment. M., NIIINFORMTYAZHMASH, 1974, p. 20. 2. USSR author's certificate 515024, cl. F 28 D 7/00, 1975.