Vapor generator steam drum spray head

Details Vapor generator steam drum spray head Vapor generator steam drum spray head

1976-03-15

1978-07-18

Sprague, Kenneth W.

Liquid heaters and vaporizers

Feed heaters

Spray to steam space

122 34, F22D 1100

Patent

active

041008880

ABSTRACT:
A typical embodiment of the invention provides a combination feedwater and "cooldown" water spray head that is centrally disposed in the lower portion of a nuclear power plant steam drum. This structure not only discharges the feedwater in the hottest part of the steam drum, but also increases the time required for the feedwater to reach the steam drum shell, thereby further increasing the feedwater temperature before it contacts the shell surface, thus reducing thermal shock to the steam drum structure.

REFERENCES:
patent: 188201 (1877-03-01), Snowdon
patent: 2862479 (1958-12-01), Blaser, et al.
patent: 3114353 (1963-12-01), Sprague
patent: 3298358 (1967-01-01), Alden, Jr.
patent: 3661123 (1972-05-01), Romanos

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