Hot water circulator

Abstract

Abstract A DOMESTIC HOT WATER CIRCULATOR FOR A LOOP TYPE DOMESTIC HOT WATER SYSTEM INCLUDES AN UPRIGHT CYLINDRICAL CONDUIT HAVING A VENTURI FORMED AS AN UPWARD EXTENSION THEREOF. AN INLET PIPE COMMUNICATES WITH THE LOWER END OF THE CONDUIT AND AN OUTLET FITTING IS FORMED ON THE UPPER END OF THE VENTURI. AN ANNULAR FLANGE IS PROVIDED ON THE LOWER END OF AN ENLARGED COLLAR SECTION INTEGRALLY FORMED ON THE LOWER END OFF THE CONDUIT AND A GENERALLY CYLINDRICAL HOUSING UNDERLIES THE CONDUIT. THE HOUSING HAS A HOLLOW BASE MEMBER FORMED THEREIN CORRESPONDING IN DIAMETER TO THE COLLAR SECTION AND AN ANNULAR FLANGE ON THE BASE MEMBER IS DETACHABLY SECURED TO THE FLANGE ON THE COLLAR SECTION. AN EECTRIC HEATER IS MOUNTED ON THE BOTTOM WALL OF THE BASE MEMBER AND EXTENDS AXIALLY UPWARDLY IN THE BASE MEMBER AND COLLAR SECTION. A CYLINDRICAL POT ENCOMPASSES THE HEATER AND A TUBE EXTENDING COAXIALLY WITH THE CONDUIT IS CONNECTED AT ITS LOWER END TO THE POT. A NOZZLE FORMING A REDUCED UPPER END PORTION ON THE TUBE TERMINATES IN THE VENTURI. THE HEATER EXTENDS THROUGH AND IS SECURED TO A LOWER WALL ON THE POT. A FLEXIBLE VALVE PLATE SECURED TO THE LOWER WALL COVERS A PLURALITY OF WATER FLOW APERTURES IN THE WALL. A SCREEN IN THE COLLAR SECTION BENEATH THE INLET PIPE FILTERS THE WATER FLOWING FROM THE INLET PIPE TO THE APERTURES. AN INSULATING TUBULAR HOUSING SURROUNDS THE TUBE. THE CONDUIT IS NORMALLY FILLED WITH WATER FLOWING THEREIN BY CONVECTION AND THE WATER IN THE POT IS HEATED BY THE HEATER AND EXPELLED THROUGH THE TUBE INTO THE VENTURI TO INDUCE INCREASED FLOW THROUGH THE SYSTEM WITH REPLACEMENT WATER FLOWING INTO THE POT THROUGH THE APERTURES PAST THE CHECK VALVE PLATE.

Inventors

• 👤 C Imler

Bibliographic Details