GB458841A - Improvements in or relating to absorption type refrigerating apparatus - Google Patents

Abstract

458,841. Refrigerating. EWART, J. H., HAWES, W. B., and EWART & SON, Ltd., 346, Euston Road, London. June 25, 1935, No. 18215. [Class 29] Absorption systems.-In a continuous - cycle system, the generator tubes 5, and the tube 16, by which weak liquor is raised to a vessel from which it flows by gravity to the absorber 4, discharge mixed refrigerant vapour and absorption solution into separators 10, 17, preferably of the centrifugal kind having a tangential inlet 19, Fig. 3, in which the solution is deposited as a flowing film over which the vapour flows. The tubes are disposed in a common heating- flue 9, and the solution separated in the separator 10 flows into a sump 13 from which a part passes down the tube 14, and returns to the generator with the strong solution returning through the pipe 8 to the lower header 7 of the generator. The other part of the solution flows into the pipe 15 and thence to the tube 16, which discharges into the separator 17 from which the weak solution flows through the pipe 24 to the absorber. Vapour passes from the separator 10 to the condenser 2, which discharges through a loop 26 to the evaporator, and from the separator 17 into a condenser tube 23 cooled by inert gas returning through the duct 28 from the absorber to the evaporator 3. The condensate from the tube 23 returns to the sump 13 or, if desired, directly to the generator or the tube 16. The flow of mixed inert gas and refrigerant vapour from the top of the evaporator to the absorber is produced by an injector 30 through which flows a part of the inert gas returning through the duct 28. Specifications 458,836 and 459,051 are referred to.