Vapor and liquid drum including cyclone separator

Claim 1

IN A STREAM AND WATER DRUM NORMALLY HAVING A WATER LEVEL SEPARATING A STEAM SPACE FROMA WATER SPACE AND CONTAINING MEANS FORMING AN INLET COMPARTMENT ARRANGED TO RECIEVE WATER-STEAM MIXTURESS, A WATER-STEAM SEPARATOR IN SAID DRUM COMPRISING MEANS FORMING A SUBSTANTIALLY CYLINDRICAL HORIZONTALLY ARRANGED WHIRL CHAMBER, MEANS FORMING A SEPARATED WATER DISCHARGE CONDUIT HAVING AN INLET END CONNECTED TO THE CIRCUMFERENTIAL WALL OF THE WHIRL CHAMBER AND OPENING TO AND EXTENDING ALONG THE LENGTH THEREOF AN AN OUTLET END OPENING TO SAID WATER SPACE AT A POSITION BENEATH THE WATER LEVEL OF THE DRUM, SAID CONDUIT CONSTITUTING THE ONLY OUTLET FOR DISHCARGE OF SEPARATED WATER FROM THE WHIRL CHAMBER, A PERFORATED PLATE COVERING THE INLET END OF SAID CONDUIT, MEANS FOR PASSING THE WATER-STEAM MIXTURES FROM SAID COMPARTMENT TANGENTIALLY INTO SAID WHIRL CHAMBER ALONG THE LENGTH THEREOF AND EFFECTING A WHIRLING PATH OF WATER-STEAM TRAVEL THEREIN ALONG THE CIRCUMFERENTIAL WALL OF SAID CHAMBER AT A VELOCITY SUFFICIENT TO CENTRIFUGALLY SEPARATE THE STEAM FROM THE WATER, TO CAUSE MOST OF THE SEPARATED WATER TO DISCHARGE THROUGH SAID PERFORATED PLATE AND CONDUIT INTO THE WATER SPACE AND TO CAUSE RECIRCULATION OF THE REMAINDER OF THE SEPARATED WATER IN THE WHIRLING PATH, SAID PERFORATED PLATE BEING PROPORTIONED AND ARRANGED TO PROVIDE A PRESSSURE DROP OF A MAGNITUDE SUFFICIENT TO ASSURE THE MAINTENANCE OF A WATER FILM OVER SAID PLATE TO INHIBIT CARRY-UNDER OF STEAM TO SAID WATER SPACE, AND MEANS FORMING AN OUTLET FOR SEPARATED STEAM ARRANGED AT ONE END OF SAID WHIRL CHAMBER AND OPENING TO SAID STEAM SPACE.