GB164727A - Improvements in and relating to apparatus for devaporizing and cooling - Google Patents

Abstract

164,727. Ingersoll-Rand Co., (Assignees of Bancel, P..4.). June 5, 1920, [Convention date]. Surface condensers; bulk evaporators. - To increase the efficiency of a heat exchanger in which steam is condensed, the flow of vapour with its admixed air is retarded at points between the cold surfaces. In the example shown in Figs. 2 and 3, a casing A receives the residual vapour and air from a condenser, on their way to the air port C. Water tubes D, more closely spaced near the outlet, are provided with intermeshing fins O which retard the flow of gases between the tubes, thereby reducing the relative speeds at points between and at the cooling surfaces. The retarding plates may be of metal and wood-their conductivity being of relatively small importance. In the Specification as open to inspection under Sect. 91 (3) (a), a modification shown in Fig. 5 (Cancelled) is provided with retarding devices in the form of continuous parallel plates b extending between tubes Z, the plates being more closely spaced near the outlet. Further, in the evaporator shown in Fig, 8 (Cancelled), steam admitted at Q passes among the vertical evaporator tubes R to the space S bounded by baffles T in which plates d and tubes c are arranged substantially as shown in Fig. 5 (Cancelled) or separate gilled tubes similar to those shown in Figs. 2 and 3. This subject-matter does not appear in the Specification as accepted.