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Title: Minimum wear tube support hole design

Abstract

A minimum-wear through-bore (16) is defined within a heat exchanger tube support plate (14) so as to have an hourglass configuration as determined by means of a constant radiused surface curvature (18) as defined by means of an external radius (R3), wherein the surface (18) extends between the upper surface (20) and lower surface (22) of the tube support plate (14). When a heat exchange tube (12) is disposed within the tube support plate (14) so as to pass through the through-bore (16), the heat exchange tube (12) is always in contact with a smoothly curved or radiused portion of the through-bore surface (16) whereby unacceptably excessive wear upon the heat exchange tube (12), as normally developed by means of sharp edges, lands, ridges, or the like conventionally part of the tube support plates, is eliminated or substantially reduced.

Inventors:
 [1]
  1. St. Petersburg, FL
Issue Date:
Research Org.:
DOW CHEMICAL CO
OSTI Identifier:
865790
Patent Number(s):
4576228
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
DOE Contract Number:  
AC02-77ET28324
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
minimum; wear; tube; support; design; minimum-wear; through-bore; 16; defined; heat; exchanger; plate; 14; hourglass; configuration; determined; means; constant; radiused; surface; curvature; 18; external; radius; r3; extends; upper; 20; 22; exchange; 12; disposed; pass; contact; smoothly; curved; portion; whereby; unacceptably; excessive; normally; developed; sharp; edges; lands; ridges; conventionally; plates; eliminated; substantially; reduced; substantially reduced; upper surface; heat exchange; heat exchanger; support plate; substantially reduce; tube support; sharp edges; exchange tube; sharp edge; surface curvature; hourglass configuration; /165/376/

Citation Formats

Glatthorn, Raymond H. Minimum wear tube support hole design. United States: N. p., 1986. Web.
Glatthorn, Raymond H. Minimum wear tube support hole design. United States.
Glatthorn, Raymond H. Wed . "Minimum wear tube support hole design". United States. https://www.osti.gov/servlets/purl/865790.
@article{osti_865790,
title = {Minimum wear tube support hole design},
author = {Glatthorn, Raymond H},
abstractNote = {A minimum-wear through-bore (16) is defined within a heat exchanger tube support plate (14) so as to have an hourglass configuration as determined by means of a constant radiused surface curvature (18) as defined by means of an external radius (R3), wherein the surface (18) extends between the upper surface (20) and lower surface (22) of the tube support plate (14). When a heat exchange tube (12) is disposed within the tube support plate (14) so as to pass through the through-bore (16), the heat exchange tube (12) is always in contact with a smoothly curved or radiused portion of the through-bore surface (16) whereby unacceptably excessive wear upon the heat exchange tube (12), as normally developed by means of sharp edges, lands, ridges, or the like conventionally part of the tube support plates, is eliminated or substantially reduced.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {1}
}

Patent:

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