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Title: Heat exchange system

Abstract

A description is given of a heat exchange system comprising in combination, (A) a first tube system comprising a plurality of substantially parallel similar tubes, and (B) return members connecting similar ends of adjacent tubes to form a first fluid passage having inlet and outlet means adjacent opposite ends thereof, (C) a second tube system comprising a plurality of similar tubes of larger diameter than the tubes of said first system and respectively surrounding at least portions of the same between opposite ends thereof, and (D) additonal connecting means positioned inwardly from the outer ends of the tubes of said first tube system and connected between similar ends of adjacent tubes of said second tube system for intercommunication therebetween to form a second fluid passage having fluid inlet and outlet means surrounding the tubes of said first tube system; (E) the improvement comprising leak-conducting means substantially coaxial and coextensive with said tubes of said first tube system and comprising supplemental tubular wall means surrounding said tubes of the first system in spaced relationship thereto and having outer ends extending beyond the ends of the tubes of said second tube system, said supplemental tubular wall means having a continuous spiral groovemore » roll formed therein to compress the bottom of said groove into firm thermal contact with said tubes of the first system without substantial decrease of the wall thickness of said supplement tubular wall means to provide a spiral passage arond the tubes of said first tube system for discharge of leaking fluid to atmosphere at opposite ends of said leak-conducting means to prevent contamination of fluids respectively in said first and second tube systems in the event of leakage openings occurring in any of the tubes on the interior of said second tube system.« less

Inventors:
;
Publication Date:
OSTI Identifier:
5112692
Patent Number(s):
US 4210199
Assignee:
Doucette Ind Inc
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 14 Jun 1978
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; HEAT EXCHANGERS; DESIGN; FLUID FLOW; CONTAINMENT; SPIRAL CONFIGURATION; TUBES; CONFIGURATION; 200101* - Fossil-Fueled Power Plants- Cooling & Heat Transfer Equipment & Systems; 200105 - Fossil-Fueled Power Plants- Heat Utilization

Citation Formats

Doucette, E, and Shelley, S. Heat exchange system. United States: N. p., 1980. Web.
Doucette, E, & Shelley, S. Heat exchange system. United States.
Doucette, E, and Shelley, S. Tue . "Heat exchange system". United States.
@article{osti_5112692,
title = {Heat exchange system},
author = {Doucette, E and Shelley, S},
abstractNote = {A description is given of a heat exchange system comprising in combination, (A) a first tube system comprising a plurality of substantially parallel similar tubes, and (B) return members connecting similar ends of adjacent tubes to form a first fluid passage having inlet and outlet means adjacent opposite ends thereof, (C) a second tube system comprising a plurality of similar tubes of larger diameter than the tubes of said first system and respectively surrounding at least portions of the same between opposite ends thereof, and (D) additonal connecting means positioned inwardly from the outer ends of the tubes of said first tube system and connected between similar ends of adjacent tubes of said second tube system for intercommunication therebetween to form a second fluid passage having fluid inlet and outlet means surrounding the tubes of said first tube system; (E) the improvement comprising leak-conducting means substantially coaxial and coextensive with said tubes of said first tube system and comprising supplemental tubular wall means surrounding said tubes of the first system in spaced relationship thereto and having outer ends extending beyond the ends of the tubes of said second tube system, said supplemental tubular wall means having a continuous spiral groove roll formed therein to compress the bottom of said groove into firm thermal contact with said tubes of the first system without substantial decrease of the wall thickness of said supplement tubular wall means to provide a spiral passage arond the tubes of said first tube system for discharge of leaking fluid to atmosphere at opposite ends of said leak-conducting means to prevent contamination of fluids respectively in said first and second tube systems in the event of leakage openings occurring in any of the tubes on the interior of said second tube system.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {7}
}