GRAHAM MANUFACTURING CO. INC. EJECTOR

GRAHAM MANUFACTURING CO. INC. EJECTOR ITEM S-1 SERIAL NO. 27776-1 MOTIVE PRESS. 50 PSIG WITH GRAHAM MANUFACTURING CO. INC. SCRUBBER ITEM S-1 SERIAL NO. 27776-2 MOTIVE PRESS. 50 PSIG. THE PURPOSE OF AN EJECTOR IS TO TRANSPORT A GAS LIQUID POWDER OR SOLID PARTICLES FROM ONE PRESSURE LEVEL TO A HIGHER PRESSURE LEVEL. IT IS EASY TO OPERATE DURABLE AND GENERALLY TROUBLE-FREE BECAUSE THERE ARE NO MOVING PARTS. IT IS TO BE EMPHASIZED THAT THE EJECTOR IS PROBABLY ONE OF THE MOST FOOLPROOF TROUBLE FREE PIECES OF APPARATUS THAT OPERATES IN ANY VACUUM CYCLE. THIS DOES NOT MEAN THAT THE APPARATUS CAN BE ABUSED BEYOND ALL LIMITATIONS NOR DOES IT MEAN THAT IT CAN BE IGNORED SO FAR AS INSPECTION MAINTENANCE AND REPAIR ARE CONCERNED. THERE ARE A FEW RATHER SIMPLE RULES TO FOLLOW IN THE OPERATION AND MAINTENANCE OF EJECTOR EQUIPMENT AND IF THE OPERATOR WILL ADHERE TO THESE RULES LITTLE OR NO DIFFICULTY MAY BE EXPECTED. 1.2 PRINCIPLE OF OPERATION ATMOSPHERIC TO HIGH PRESSURE MOTIVE FLUID PASSES THROUGH THE MOTIVE NOZZLE WHERE ITS PRESSURE IS DISSIPATED IN ACCELERATING THIS FLUID TO HIGH VELOCITY AS IT EXITS THE MOUTH OF THE NOZZLE. THIS HIGH VELOCITY STREAM OF FLUID ISSUED FROM THE NOZZLE MOUTH ENTRAINS THE SUCTION FLUID. ENTRAINMENT BETWEEN THE MOTIVE FLUID AND THE LOW PRESSURE SUCTION FLUID CAUSES THE LATTER TO MOVE WITH THE MOTIVE FLUID. THESE TWO STREAMS MIX AS THEY PASS INTO THE DIFFUSER. THE VELOCITY PROFILE IS CONSTANTLY CHANGING AND THE PRESSURE CONTINUES TO RISE AS THE DISCHARGE OF THE DIFFUSER IS REACHED.