Built-up tube and tubesheet assembly for multi-conduit heat exch

Details Built-up tube and tubesheet assembly for multi-conduit heat exch Built-up tube and tubesheet assembly for multi-conduit heat exch

1975-03-28

1976-09-21

Husar, C. J.

Heat exchange

With repair or assembly means

Positioner or retainer for settable material

291574, 165125, 165153, 165175, 165179, F28F 700

Patent

active

039813541

ABSTRACT:
The built-up tube and tubesheet assembly for multi-conduit heat exchangers having a plurality of conduits each of which have end portions of four-sided polygonal shape in cross-section comprises a plurality of peripheral walls secured together to form a four-sided polygonal shaped frame and, at least, one partition wall connected at opposite ends to opposite peripheral walls to thereby form two openings shaped and dimensioned to receive therein the end portions of the conduits. A securing and sealing means is provided to connect the end portions of the conduits and the peripheral and partition walls together and seal the interstices between the surfaces of the end portions and the adjacent surfaces of the peripheral and partition walls. In the method of fabrication the securing and sealing means is provided by dip soldering or brazing within a molten solder bath.

REFERENCES:
patent: 1265340 (1918-05-01), Kaman
patent: 2339284 (1944-01-01), Modine
patent: 3229722 (1966-01-01), Kritzer

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