Feeding device for falling-film evaporators

Claim 1

AN APPARATUS FOR EVAPORATING AND CONCENTRATING LIQUIDS COMPRISING A HOUSING HAVING UPPER, INTERMEDIATE AND LOWER WALL PORTION, SAID UPPER AND LOWER WALL PORTIONS DEFINING A SEPARATOR ZONE AND AN EVAPORATOR ZONE, RESPECTIVELY, SAID INTERMEDIATE WALL PORTION BEING UPWARDLY AND OUTWARDLY DIRECTED AND DEFINING A CONICAL EXTENSION INTERCONNECTING SAID UPPER AND LOWER WALL PORTIONS, MEANS FOR HEATING SAID LOWER WALL PORTION OF SAID EVAPORATOR ZONE, ROTOR MEANS MOUNTED FOR ROTATION WITHIN SAID HOUSING, A DEMOUNTABLE STATIONARY PLATE SUPPORTED EXTERNALLY OF SAID HOUSING IN THE REGION OF SAID CONICAL EXTENSION TO DEFINE AN EXPANSION CHAMBER THEREBETWEEN, SAID WALL PORTIONS OF SAID HOUSING HAVING UPPER AND LOWER APERTURES IN THE REGION OF SAID SEPARATOR ZONE AND SAID EVAPORATOR ZONE, RESPECTIVELY, SAID UPPER AND LOWER APERTURES PROVIDING COMMUNICATION BETWEEN SAID EXPANSION CHAMBER AND SAID SEPARATOR ZONE AND EVAPORATOR ZONE, RESPECTIVELY, FOR MOVEMENT OF VAPOR AND LIQUID, RESPECTIVELY, FROM SAID EXPANSION CHAMBER INTO SAID SEPARATOR ZONE AND EVAPORATOR ZONE, BAFFLE MEANS IN SAID EXPANSION CHAMBER PREVENTING ENTRY OF LIQUID SPATTERS INTO SAID SEPARATOR ZONE THROUGH SAID UPPER APERTURES, SAID ROTOR MEANS HAVING A RECESSED PORTION OPPOSITE SAID LOWER APERTURES, DEFLECTING MEANS CARRIED BY SAID ROTOR MEANS IN SAID RECESSED PORTION FOR DIRECTING LIQUID SPATTERS AGAINST A PART THE INNER SURFACE OF SAID WALL PORTION DEFINING THE EVAPORATOR ZONE, AND MEANS FOR FEEDING A SUPPLY OF LIQUID INTO SAID EXPANSION CHAMBER.

Claim 2

AN APPARATUS FOR EVAPORATING AND CONCENTRATING LIQUIDS COMPRISING A HOUSING HAVING UPPER, INTERMEDIATE AND LOWER WALL PORTION, SAID UPPER AND LOWER WALL PORTIONS DEFINING A SEPARATOR ZONE AND AN EVAPORATOR ZONE, RESPECTIVELY, SAID INTERMEDIATE WALL PORTION BEING UPWARDLY AND OUTWARDLY DIRECTED AND DEFINING A CONICAL EXTENSION INTERCONNECTING SAID UPPER AND LOWER WALL PORTIONS, MEANS FOR HEATING SAID LOWER WALL PORTION OF SAID EVAPORATOR ZONE, ROTOR MEANS MOUNTED FOR ROTATION WITHIN SAID HOUSING, A DEMOUNTABLE STATIONARY PLATE SUPPORTED EXTERNALLY OF SAID HOUSING IN THE REGION OF SAID CONICAL EXTENSION TO DEFINE AN EXPANSION CHAMBER THEREBETWEEN, SAID WALL PORTIONS OF SAID HOUSING HAVING UPPER AND LOWER APERTURES IN THE REGION OF SAID SEPARATOR ZONE AND SAID EVAPORATOR ZONE, RESPECTIVELY, SAID UPPER AND LOWER APERTURES PROVIDING COMMUNICATION BETWEEN SAID EXPANSION CHAMBER AND SAID SEPARATOR ZONE AND EVAPORATOR ZONE, RESPECTIVELY, FOR MOVEMENT OF VAPOR AND LIQUID, RESPECTIVELY, FROM SAID EXPANSION CHAMBER INTO SAID SEPARATOR ZONE AND EVAPORATOR ZONE, BAFFLE MEANS IN SAID EXPANSION CHAMBER PREVENTING ENTRY OF LIQUID SPATTERS INTO SAID SEPARATOR ZONE THROUGH SAID UPPER APERTURES, SAID ROTOR MEANS HAVING A RECESSED PORTION OPPOSITE SAID LOWER APERTURES, DEFLECTING MEANS CARRIED BY SAID ROTOR MEANS IN SAID RECESSED PORTION FOR DIRECTING LIQUID SPATTERS AGAINST A PART THE INNER SURFACE OF SAID WALL PORTION DEFINING THE EVAPORATOR ZONE, AND MEANS FOR FEEDING A SUPPLY OF LIQUID INTO SAID EXPANSION CHAMBER.