GB262369A - Improvements in or relating to the treatment of water for use in the manufacture of artificial silk - Google Patents

Abstract

262,369. Brysilka, Ltd., and Schubert, F. W. Aug. 4, 1925. Liquids and gases, separating. - Water or other liquid to be used in the manufacture of artificial silk is cooled and deaerated by subjection to a vacuum while in a vessel 1, the vacuum being created by a steam-jet ejector 2; steam and liberated air and vapour pass into a condenser 3, from which uncondensed vapour and air are withdrawn by a second ejector 4 delivering into a second condenser 8, and from the latter, air and vapour are finally blown into the atmosphere by a third ejector 9. The condensers are supplied with water at ordinary temperature, and the condensate is collected in a vessel 11 provided with a vacuum trap or it is delivered directly into the deaerating vessel 1; in order more efficiently to separate condensed liquid some of the tubes 10 of the condensers are lengthened so as to dip into the condensed liquid and so act as a drain for the upper header. According to the Provisional Specification, the pump that withdraws liquid from the vessel 1 may have the suction stage at the bottom, with the gland on the discharge or suction side; and for ease of dismantling the pump casing may be split on a vertical plane, the discharge and suction branches being carried by the rear section; the motor is mounted above the pump.