Method of sealing apertures in tube plates of heat exchangers us

Details Method of sealing apertures in tube plates of heat exchangers us Method of sealing apertures in tube plates of heat exchangers us

1976-02-27

1977-05-10

DiPalma, Victor A.

Metal working

Method of mechanical manufacture

Shaping by direct application of fluent pressure

291574, 29401R, 138 89, 228107, B23P 1702

Patent

active

040219070

ABSTRACT:
A method and a plug to seal a defective tube of a heat exchanger in the place, where said tube extends in a tube plate, said plug being inserted in the tube plate and having two coaxial cavities, each of which is open at one end and contains an explosive charge and firing means, and said plug being jammed in the tube plate in a gas and liquid tight manner by its radial expansion due to the explosion of its charges -- and a heat exchanger, of which at least one of its tubes has been plugged by means of the described plugs.

REFERENCES:
patent: 3555656 (1971-01-01), Brown et al.
patent: 3590877 (1971-07-01), Leopold et al.
patent: 3724062 (1973-04-01), Cantrell et al.
patent: 3785291 (1974-01-01), Bergbauer et al.
patent: 3900939 (1975-08-01), Greacen
patent: 3919940 (1975-11-01), Ploger et al.

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