Document RLw6QKaKbLwbBZxXbpv0L9kz

Entrainment losses IN EVAPORATORS STILLS AND TOWERS WITH Hi-eF Purifiers! naiti intercept and return to the evaporator all carryover thereby preventing possibility of Ion of valuable products. In addition, by removing thii carryover and entrainment, a Hi*eP Purifier eliminate* frequent cleaning of vapor line*, condenser tubes and other equip* ment. Hi-eP Purifiera con no more than ordinary separators ... yet are guaranteed 99 9b efficient in entrainment removal! These carefully engineered purifiers remove ail carryover, solid particles and mist through carefully guided centrifugal action. Without moving pans or filters, Hi-eF Purifiers require no maintenance... never wear out. Let our engineering staff recommend the proper aolutioo to your currcot problem. Mail coupon. WATCHDOGS OP STEAM AIR GAS VAPOR PIPELINES AND EQUIPMENT THI V. 0. AMOIKSOM COMPANY Wast tttli Slreal Cleveland Ohta Pitot* tend Information on purifiers for evaporator*, itfllt ond tower*. Nome,'............. ........................... ........ till*............... Compony ................................... City........................................ . Slate.. BY THE MAKERS OF $ U PE R-SIIV E RTOP; ST E A M T R A P S no More TECHNICAL BRIEFS - bale, n ,#y been built. Tltc first 160.000.livi W 'pm m.chi,,^ th Ume I, w"` capacity ,h,, ^ .hlpM under American rellIMd J lle.lon. of from, dleme.er, |e,,,,h TMd . weijhl wuh the ermeture I.etoryJ tembled in one piece. Become of the belter m8,,etic met, riel, currently In use, particularly be. oeuso of the employment of grein-orh ented itrip steel in the ormslure punch. ln(S, it Is now possible to build snd ship one-piece ermeture, lB0.000.kri 3600-rpm machines under the seme rhip! pinS limitations which formerly re- . atricted the site to 160,000 kva. The corresponding maximum-size, 1800-rpm machine for one-piece shipment is about 250,000 kva today, where prior to these improvements in the magnetic ports ol machines that limit was about 200,000 kva. The authors then discuss other developments in the same vein. ARC Paper, no number. Present Status of Supercharged Cooling. By W I. Hlngland and L T. Roienberg, Allis Chalmers fif/g Co. Ventilation of modern turbo-genera- tore is the culmination of a long chain of developments extending over the past fifty years. The earliest tmoll 4-pola steam turbine-driven generators were quite short and were easily cooled from the ends. As ratings were increased and generatora.grew longer, means had to be devised to cool adequately the cen-' ter. The multiple radial system Intr* dueed in 1924 was a major step forward. It brought the cool air into the stator core at many points around the outer diameter and provided for its escape at Intermediate positions. Long rotors were ventilated through trenches or too- neb below the rotor coils in addition to TO MARK PROCRESS the heat transfer at their grooved sur faces. A radial scoop arrangement wii alto devbed to draw air from the gap {Metallurgical Integrity--is safeguarded at down into the rotor at many points. Ladish by unsurpassed laboratory controls. However, rotor' temperature^ ris w* mained the predominant limiting factor in machine output. Rotor ventilation was substantially Improved in 1935 by the introduction el axial ventilating slots In the teeth *n {Typical Is this advnnccd electronic directdreading spectrograph. On this unit as many >Qs 300 determinations have been made in one hour to verify compliance of eueh mill ^heat with exucting Ladielt spcclficallons poles discharging into the oir gap land, equally Important* to assure the the rotor length. This, in turn, st lated further Improvement in . cooling, and in 1937 the first Plf,'7 ventilated stator waa placed In P* tion. In this design every "lW' m absence of detrimental "tramp" elementa. jiHerc is but one indication of the thorough, ^clentlfic procedures that assure reliability jin every Ladlsh Controlled Quality fitting. duct along the length of l"6 *served a. a gas Inlet, while theater- mediate duets served as g* (Mrocf/en* tor orfa/np pep*** M POWER JllNt 3 ASSURES METALLURGICAL SOUNDNESS Ladish measures the spectrum to verify chemical composition THE COMMIT! | FITTING! PRODUCED UNOIR ONI ROOF. . ONE RUPONIISIIITT ffi KMWO CUDAHY. WISCONSIN kMM, "-j