Shell and tube heat exchanger with welds joining the tubes to tu

Details Shell and tube heat exchanger with welds joining the tubes to tu Shell and tube heat exchanger with welds joining the tubes to tu

1983-03-04

1986-04-01

Cline, William R.

Heat exchange

With first fluid holder or collector open to second fluid

Trickler

165118, 165173, 291574, 29727, 228183, 2281732, 2281734, F28D 302, F28F 918, B21D 5300, B23K 3102

Patent

active

045791716

ABSTRACT:
A falling film heat exchanger in which a continuous weld circumferentially joins each tube to the outer surface of the upper, and desirably also the lower, tubesheet. The welds seal the crevices between the tubes and tubesheet holes and prevent corrosion. Since the circumferential welds cannot be deposited if the tube ends extend more than about 2 inches past the tubesheet, extensions can be added by welding.

REFERENCES:
patent: 1589646 (1926-06-01), Hicks
patent: 2069430 (1937-02-01), Voss
patent: 2178095 (1939-10-01), Bowser
patent: 2519845 (1950-08-01), Mojonnier et al.
patent: 2785459 (1957-03-01), Carpenter
patent: 3317222 (1967-05-01), Maretzo
patent: 3465727 (1969-09-01), Tidball
patent: 3979810 (1976-09-01), Krips et al.
patent: 4071083 (1978-01-01), Droin
patent: 4142581 (1979-03-01), Yoshitomi et al.
patent: 4182408 (1980-01-01), Laber
patent: 4199537 (1980-04-01), Zardi et al.
patent: 4286436 (1981-09-01), Engdahl
patent: 4420867 (1983-12-01), Busse

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