Method of sealing tube plate apertures, and repair set for use t

Details Method of sealing tube plate apertures, and repair set for use t Method of sealing tube plate apertures, and repair set for use t

1978-02-27

1980-05-20

Husar, Francis S.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291574, 2940209, 165 71, B23P 1526

Patent

active

042031850

ABSTRACT:
A method of sealing tube plate apertures, e.g. in heat exchangers, and a repair set for use therein. It is known to seal a tube plate aperture by mounting a capped tube member therein. A disadvantage of the prior method is that the sealed aperture contains a fluid with a temperature different from that of the fluid in the non-sealed tube plate apertures, which results in stresses being generated in the tube plate and an increased danger of leakage. According to the invention this disadvantage is overcome by sealing the aperture in such a manner as to form an insulating space over the major part of the thickness of the tube plate.

REFERENCES:
patent: 2209975 (1940-08-01), Jacobus
patent: 3555656 (1971-01-01), Brown et al.
patent: 3945431 (1976-03-01), Straub

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