GB585031A - Improvements in continuous sterile water supply systems - Google Patents

Abstract

585,031. Hot-water supply systems. THACKRAY, Ltd., C. F., and ROTHWELL, E. Nov. 23, 1943, No. 17490. [Class 64 (i)] [Also in Group VI] A continuous sterile distilled water supply system comprises a collection tank d for condensed steam, two interconnected subsidiary tanks m, n one of which has direct connection, e.g., through the pipe j<1>, to the collection tank. a steam supply, e.g., through pipes a, o, to the collection tank d and to the circulating system, a pump or pumps k, k<1> for transferring the sterile distilled water from the collection tank to the subsidiary tanks, subordinate means, e.g., an electric heater z, for heating the water drawn from one of the subsidiary tanks, means e.g., a thermostatically controlled cold water coil u, for cooling the water in one of the subsidiary tanks, means, e.g., thermostatically operated valves y, for mixing water drawn from both subsidiary tanks, and outlet valves jh, jj for drawing off water from the two tanks m; n separately. After leaving the pumps k, k<1> the water is heated in the heat-exchanger l by steam from the line o. Steam from this line is also used to drive the pumps k,k' and is also condensed in condenser v by water from the coil u. Steam from the pumps and condensate from the condenser v and heat exchanger l are passed to tank d.