Method of assembling the parts of a heat exchanger, and a heat e

Details Method of assembling the parts of a heat exchanger, and a heat e Method of assembling the parts of a heat exchanger, and a heat e

1978-08-11

1980-05-13

Husar, Francis S.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

165 76, 165 79, 29DIG25, 29DIG48, 2940208, B23P 1526

Patent

active

042020867

ABSTRACT:
A method of assembling the parts of a heat exchanger, in which a pipe bundle is lowered into an open-topped vessel, and a wall of the bundle is secured to the wall of the vessel by welding. Prior to placing the bundle in position, a sealing ring is provided around the bundle between the outer periphery of a circumferential wall thereof and the inner periphery of the wall of the vessel, which ring hermetically seals the annular opening between the pipe bundle and the wall of the vessel after the bundle has been placed in position. The sealing ring is desirably made of a deformable material having suitable dimensions to be compressed axially between an outwardly extending wall portion of the pipe bundle and an inwardly extending wall portion of the vessel when the pipe bundle is fully lowered into the vessel. The seal ring may be made of material which melts at the operating temperature of the heat exchanger and can be thereby eliminated after welded joint has been tested satisfactorily. The method is particularly applicable to the assembly of heat exchangers for sodium-cooled nuclear reactors, in which case the seal is made desirably from solidified sodium.

REFERENCES:
patent: 2363526 (1944-11-01), Hobbs
patent: 3352756 (1967-11-01), Lockett et al.
patent: 4035232 (1977-07-01), Kube

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