Support for a tube bundle

a support and bundle technology, applied in the direction of stationary tubular conduit assemblies, indirect heat exchangers, lighting and heating apparatus, etc., can solve the problems of vibration problems, significant cost element of the entire tube support, and relative large part of the tubes that run through the window remain unsupported

Inactive Publication Date: 2005-07-28
EMBAFFLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large baffle cut in a single segmental baffle provides a relatively low pressure drop, however the relatively large part of the tubes that run through the window remains unsupported.
When the unsupported tube length becomes too lar

Method used

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  • Support for a tube bundle
  • Support for a tube bundle
  • Support for a tube bundle

Examples

Experimental program
Comparison scheme
Effect test

second embodiment

[0040] Reference is now made to FIGS. 6-11, and the present invention will now be discussed.

[0041]FIG. 6 shows part of a Texas tower heat exchanger 101 in longitudinal cross-section, and FIGS. 7 and 8 show two cross-sections along lines VII-VII and VIII-VIII, respectively. The heat exchanger 101 has a vertical cylindrical shell 103 and a bundle of tubes 105 running through the central part of the shell 103. The tubes 108,109 and 110 are visible in FIG. 6. The Texas tower may for example have a height of 24 m and a diameter of 2.5 m.

[0042] The support for the tube bundle 105 comprises the five support plates 117,118,119,120,121 shown in FIG. 6 as support elements. The plates are spaced from each other along the length direction of the tubes 108-110.

[0043] Support plates 117 and 121 are conventional segmental baffles 124 as shown enlarged in FIG. 9. These segmental baffles are manufactured from a circular plate 125 from which a segment has been cut off along line 126 so that windows...

third embodiment

[0047] Reference is now made to FIGS. 12-13, and with reference to these FIGS. the invention will be discussed.

[0048] The horizontal heat exchanger 201 with shell 203 through which the tube bundle 205 runs is an example of such a design. FIG. 12 shows part of a longitudinal cross-section, and it will be understood that the heat exchanger may be much longer, and that more support plates than shown may be arranged. The tube bundle 205 includes tubes 208, 209, 210, 211, 212, 213, and 214. The Figure does not show the end parts of the tubes with the tube sheet.

[0049] The tubes are supported by segmental baffles 218, 219, 220. As further support against tube vibrations expanded metal support plates 221,222 are arranged. The segmental baffle support elements and the expanded metal support elements are alternatingly arranged at a fixed spacing along the length direction of the tubes 205. The spacing between adjacent segmental baffles, e.g. 218 and 219, is L3.

[0050] The segmental baffle s...

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PUM

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Abstract

A support for a bundle of tubes, which support has more than one transverse support plates spaced apart along the direction of the tubes to be supported, and which support plates are provided with openings for accommodating the tubes, wherein the support plates are segmental baffle support elements and expanded metal support elements.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a support for a bundle of tubes, in particular to such a support comprising a plurality of transverse support plates known as segmental baffles, which are spaced apart along the direction of the tubes to be supported. BACKGROUND OF THE INVENTION [0002] A major area of application of the tube bundle is in shell-and-tube heat exchangers. A shell-and-tube heat exchanger comprises a cylindrical vessel internally provided with a bundle of tubes that extend in longitudinal direction of the vessel. The bundle of tubes can in particular be a bundle of parallel tubes, and is also referred to as a tube bundle. [0003] As is well known, the shell-and-tube heat exchanger is an indirect heat exchanger in which heat is transferred between a fluid passing through the tubes of the tube bundle (the tube side) and a fluid passing through the space outside the tubes (the shell side). Details of the shell-and-tube heat exchanger can, for exa...

Claims

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Application Information

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IPC IPC(8): F28D7/16F28F9/013F28F9/22
CPCF28D7/16F28F9/0131F28F2009/226F28F9/22F28F9/0136F28F9/013F28F9/007
Inventor JOHNSTON, STEPHEN WAYNEMULDER, DOMINICUS FREDERICUS
Owner EMBAFFLE
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