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Title: Tube support grid and spacer therefor

Abstract

A tube support grid and spacers therefor provide radially inward preloading of heat exchange tubes to minimize stress upon base welds due to differential thermal expansion. The grid comprises a concentric series of rings and spacers with opposing concave sides for conforming to the tubes and V-shaped ends to provide resilient flexibility. The flexibility aids in assembly and in transmitting seismic vibrations from the tubes to a shroud. The tube support grid may be assembled in place to achieve the desired inwardly radial preloading of the heat exchange tubes. Tab and slot assembly further minimizes stresses in the system. The radii of the grid rings may be preselected to effect the desired radially inward preloading.

Inventors:
 [1];  [2]
  1. Solano Beach, CA
  2. Del Mar, CA
Issue Date:
Research Org.:
GA TECHNOLOGIES INC
OSTI Identifier:
865768
Patent Number(s):
4570703
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
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
F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
DOE Contract Number:  
AT03-76ET35301
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
tube; support; grid; spacer; spacers; provide; radially; inward; preloading; heat; exchange; tubes; minimize; stress; base; welds; due; differential; thermal; expansion; comprises; concentric; series; rings; opposing; concave; conforming; v-shaped; resilient; flexibility; aids; assembly; transmitting; seismic; vibrations; shroud; assembled; achieve; desired; inwardly; radial; tab; slot; minimizes; stresses; radii; preselected; effect; radially inward; differential thermal; thermal expansion; heat exchange; support grid; exchange tubes; tube support; exchange tube; provide radial; /165/248/376/

Citation Formats

Ringsmuth, Richard J, and Kaufman, Jay S. Tube support grid and spacer therefor. United States: N. p., 1986. Web.
Ringsmuth, Richard J, & Kaufman, Jay S. Tube support grid and spacer therefor. United States.
Ringsmuth, Richard J, and Kaufman, Jay S. Wed . "Tube support grid and spacer therefor". United States. https://www.osti.gov/servlets/purl/865768.
@article{osti_865768,
title = {Tube support grid and spacer therefor},
author = {Ringsmuth, Richard J and Kaufman, Jay S},
abstractNote = {A tube support grid and spacers therefor provide radially inward preloading of heat exchange tubes to minimize stress upon base welds due to differential thermal expansion. The grid comprises a concentric series of rings and spacers with opposing concave sides for conforming to the tubes and V-shaped ends to provide resilient flexibility. The flexibility aids in assembly and in transmitting seismic vibrations from the tubes to a shroud. The tube support grid may be assembled in place to achieve the desired inwardly radial preloading of the heat exchange tubes. Tab and slot assembly further minimizes stresses in the system. The radii of the grid rings may be preselected to effect the desired radially inward preloading.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {1}
}

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