WO1995031666 FLUTED TUBE JOINT AND METHOD OF JOINING

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Publication Number WO/1995/031666

Publication Date 23.11.1995

International Application No. PCT/US1995/006278

International Filing Date 17.05.1995

Chapter 2 Demand Filed 14.12.1995

IPC

CPC

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Applicants

REYNOLDS METALS COMPANY [US]/[US]

Inventors

RUGGLES, Peter, C.
SNODGRASS, Jack, S.

Agents

PRICE, Robert, L.

Priority Data

08/245,193

17.05.1994

Publication Language English (en)

Filing Language English (EN)

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Title

(EN) FLUTED TUBE JOINT AND METHOD OF JOINING

(FR) JOINT A TUBE CANNELE ET PROCEDE D'ASSEMBLAGE

Abstract

(EN) A method of forming a tube joint which can be used in a desalination plant includes providing a fluted tube (1), applying a sealant (51) to the tube end (19) and inserting the tube end (19) into a tube sheet or plate (3) to form a joint therebetween. After insertion, the inner surface of the fluted tube (1) is worked to deform external ridges of the fluted tube (1) and uniformly distribute the sealant (51) throughout the joint area. The fluted tube (1) is deformed using a roll expanding method. The fluted design of the tube (1) retains sealant (51) in the joint area during tube (1) insertion and expansion and takes advantage of the heat transfer characteristic of the flutes (9) to provide an improved joint construction especially adapted for heat exchange use.

(FR) Procédé de formation d'un joint pour tube utilisable dans des installations de dessalement, et consistant à utiliser un tube cannelé (1), à appliquer autour de l'extrémité de ce dernier (19) un matériau d'étanchéité (51) et à insérer ladite extrémité (19) dans une plaque ou une tôle de tube (3) pour constituer un joint entre eux. Après insertion, la surface interne du tube cannelé (1) est usinée pour déformer les saillants externes du tube cannelé (1) et répartir uniformément le matériau d'étanchéité (51) sur toute la surface de jonction. La déformation du tube (1) se fait à l'aide d'un procédé de dilatation par roulage. Les cannelures retiennent le matériau d'étanchéité (51), dans le joint pendant l'introduction et la dilatation du tube (1), et de part leur caractéristiques de transfert thermique permettent de réaliser une structure de joint améliorée particulièrement adaptée aux échangeurs de chaleur.

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16	ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L	PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
13	Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints
14	made by plastically deforming the material of the pipe, e.g. by flanging, rolling

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16	ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L	PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
41	Branching pipes; Joining pipes to walls
08	Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16	ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L	PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
13	Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints
14	made by plastically deforming the material of the pipe, e.g. by flanging, rolling

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16	ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L	PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
41	Branching pipes; Joining pipes to walls
08	Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16	ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L	PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
13	Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
14	made by plastically deforming the material of the pipe, e.g. by flanging, rolling
147	by radially expanding the inner part

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1. WO1995031666 - FLUTED TUBE JOINT AND METHOD OF JOINING

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28	HEAT EXCHANGE IN GENERAL
F	DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
1	Tubular elements; Assemblies of tubular elements
02	Tubular elements of cross-section which is non-circular
06	crimped or corrugated in cross-section

Y	SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10	TECHNICAL SUBJECTS COVERED BY FORMER USPC
T	TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
156	Adhesive bonding and miscellaneous chemical manufacture
10	Methods of surface bonding and/or assembly therefor
1002	with permanent bending or reshaping or surface deformation of self sustaining lamina