Tube-type vessel having crevice-free joints and method for manuf

Details Tube-type vessel having crevice-free joints and method for manuf Tube-type vessel having crevice-free joints and method for manuf

1987-07-07

1990-07-24

Jordan, M.

Metal fusion bonding

Process

With shaping

228183, 228196, 228216, 219 602, 165173, 29890043, 29890054, 285189, B23K 3102

Patent

active

049430017

ABSTRACT:
A tube-type heat exchanger has two tubesheets, each provided with a multitude of bores, and tubes which extend between the tubesheets at their bores, their hollow interiors opening into the bores. Each tube at its ends is joined to the tubesheets along fillet welds which, being free from crevices, eliminate the build up of deposits and corrosion which commonly develop in the crevices of heat exchangers. To assemble the heat exchanger, each tube is passed through a bore in one of the tubesheets and advanced toward the other tubesheet, its leading end being inserted into a socket at the end of a bore in the other tubesheet. Then the leading end of the tube is welded to the tubesheet at which it is located. This leaves the trailing end of the tube in the bore of the tubesheet through which the tube was initially inserted, and that bore likewise terminates at a socket. The trailing end of the tube is machined down from within the bore until it extends no farther than the socket at the end of the bore. Next the trailing end is expanded against the wall of the socket. Then it is welded to the tubesheet. This leaves the tube with crevice-free fillet welds at both of its ends.

REFERENCES:
patent: 2996600 (1961-08-01), Gardner, Jr. et al.
patent: 4221263 (1980-09-01), Meyer
patent: 4535214 (1985-08-01), Meyer et al.
patent: 4579171 (1986-04-01), Stafford et al.

Affiliated with

Also associated with

Rating

Tube-type vessel having crevice-free joints and method for manuf does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tube-type vessel having crevice-free joints and method for manuf, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tube-type vessel having crevice-free joints and method for manuf will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1263734