SU1364847A2 - Shell-and-tube heat exchanger - Google Patents

Abstract

The invention relates to heat exchangers designed for heating cold heat transfer fluids (TH) high temperature ones. The purpose of the invention is to intensify heat transfer. The tubes 8 of the additional tube bundle pass inside the tubes 1 of the section 3 and in the annular space (MTP) of the section 4. In the tube grid (TP) 5 of the section 4 of the pipe 8 are fixed at one end with the formation of a rotating chamber. The opposite ends of the pipes 8 are reinforced in the station OA - I / J2 (L Heated Medium 0/1 depleted, Medium / J -; bo O) 4a 00 1

Description

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a separate TP 10, forming with TP 7 of a bundle of pipes 1, an additional section 11. The latter is connected to the nozzle 12 of the outlet of one of the media. One TN through the nozzle 14 enters the tube space of the tube bundle 8, passes into the cavity of the lower bottom 9 and along the bundle

pipes 2 enters the MTP section 3, from where it goes through the fitting 15. Another TN through the fitting 16 enters the MTP section 4 and through the annular space into the chamber of section 11, from where it goes through the nozzle 12. 1 Il.

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The invention relates to heat engineering, in particular to heat exchangers designed for heating cold heat carriers with high temperature, and is an improvement of the device according to the author. No. 556304.

The purpose of the invention is to intensify heat transfer.

The drawing shows a heat exchanger, a longitudinal section.

The heat exchanger contains bundles of pipes 1 and 2 in each section 3 and 4, the cavity of which is connected to the annular space of the adjacent section. The ends of the labor 1 and 2 are fixed in tube sheets 5-7. The heat exchanger also contains an additional bundle of pipes 8, passing through both sections inside pipes 1 and in the annular space of section 4, in the tube sheet 5 of which they are fixed at one end with the formation of a rotating chamber between this grid and the bottom 9, and the opposite ends of the pipes 8 additional bundles are fixed in a separate tube grid 10, which forms with the tube bundle 7 of a bundle of tubes inside which they are installed an additional section 11 connected to the outlet 12 of the heated medium. The heat exchanger has an upper roof ky 13 with hose 14, fittings 15 and 16 in sections 3 and 4 respectively.

The heat exchanger operates as follows.

One coolant flows through the fitting 14 into the tube space of the additional tube bundle 8, passes through them into the cavity of the lower bottom 9 and goes along the bundle of tubes 2 into the annular space of section 3, from where it goes through fitting 15. The other coolant flows through fitting 16 into the annular space of the section 4, washes the surfaces of the pipes 2 of the beam and the additional pipes 8 and enters the chamber of the additional section 11 through the annular space, from where it leaves through the fitting 12.

Claims (1)

Invention Formula Shell-and-tube heat exchanger according to ed. St. No. 556304, characterized in that, in order to intensify heat exchange, it contains an additional bundle of pipes passing through both sections inside the pipes of one of them and in the annular space of the other, in the tube grid of which they are fixed at one end to form a rotating chamber, and opposite the ends of the tubes of the additional beam are fixed in a separate tube sheet forming, with the tube grid, a beam of tubes inside which they are installed, an additional section connected to the outlet of one of the media.