| 摘要 |
PURPOSE: A device of circulation for a hot water boiler is provided to be easy handling by simplifying the structure and to maintain the heating by circulating continuously a heat carrier. CONSTITUTION: A device of circulation for a hot water boiler comprises : a body(1) to combine a boiler body with a pump body, and to include a heater(2) heating a heat carrier and a pump piston(3) having a valve(3v) circulating a heat carrier ; a heatproof pipe(6) to be connected with a body(1) by a supply pipe(1p) and with a hole(1b) of a body(1) by a withdraw water pipe(1p'), and to circulate a heat carrier in one direction ; a power cylinder(4) to be joined with one side of a body(1), and to include a power piston(4a) connected with a pump piston(3) by a road(4b) and a spring(4s) and driving a pump piston(3) for circulating hot water(w) ; an actuator(5) to be connected with a power piston(4) by a conduit(4d), and to include a heater(5h) heating an expansional material and a cooling device(5c) cooling an expansional material for operating a power piston(4a).
|
