GB237564A - Improvements in direct contact feed water heaters - Google Patents

Abstract

237,564. Griscom-Russell Co., (Assignees of Jones, R. C.). July 28, 1924, [Convention date]. Feed-water, heating.-A direct-contact heater is provided with two or more vertical and radial partitions forming compartments through which the feed passes, being heated therein by steam from various sources, e.g. exhaust or " bleed " steam at increasing temperatures and pressures. In the example shown, with two compartments, feed enters at 4 and is delivered into the semi-circular space 14 partly surrounding the airescapes 13 for the two compartments. This space 14 is further divided by a semi-circular partition 10, the perforated plate 11 thus causing a screen of falling water about the exit 13, even if only a small quantity of water is being fed. Steam enters at 7. Supply of water is regulated by a float 5, and the heated water is fed from one compartment A to the next B at a higher pressure by a pump 16, the operations being repealed therein with a fresh supply of steam. In a modification, the compartments may operate in parallel instead of successively. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the compartments are superposed, being connected by pipes having pumps therein or loop arrangements for gravity feed from one to the next. This subject-matter does not appear in the Specification as accepted.