GB229332A - Improvements in or relating to absorption refrigerating apparatus - Google Patents

Abstract

229,332. Siemens - Schuckertwerke Ges. Feb. 14, 1924, [Convention date]. Refrigerating, absorption systems for. -In a continuouscycle system a circulation of the gas through the evaporator and absorber, to facilitate absorption, is effected by introducing into the gas conduits or spaces at low pressure some of the gas from a part of the system at a higher pressure. A generator 1 heated electrically is connected to a separating chamber 2 from which gas passes through a pipe 6 to a condenser 7, while the weak liquor is lifted through a pipe 3 into the absorber 4. The condenser communicates with the evaporator 9 by a pipe 8, and the evaporator and absorber are in communication through a flow pipe 10 and a pipe 11. The evaporator and absorber are at a lower pressure than the generator and condenser, but may contain an added neutral gas such as air whereby the pressure difference in the system may be reduced, with a consequent shortening of the liquid columns in the upright connecting pipes 3, 5, 8. The high pressure gas for effecting the gas circulation is led from the pipe 6 through a pipe 12 forming an injector nozzle 13 in the pipe 10. Any unabsorbed gas may return to the evaporator through the pipe 11. Where only a small amount of added neutral gas is present, or where the evaporator and absorber are under vacuum and a small amount of air leaks into the system, the gas space of the absorber may be enlarged and the high pressure gas may be led directly into it and projected against a baffle to effect a circulation of gas over the absorbent, there being only a single passage between the evaporator and absorber. Specifications 199,366 and 206,609 are referred to.