PURPOSE: To enable to make an efficient use of waste heat and steam of a boiler, by attaching a heat exchanging drum or durms incorporating therein a heat exchanger to either of or both of an upper header and a lower header of a vacuum type waste heat recovering means of the boiler, and thereby making it unnecessary to provide a special means for taking out hot water.
CONSTITUTION: An upper heat exchanging drum 2 and a lower heat exchanging drum 3 are attached to a vacuum type waste heat recovering means 1 of a boiler, and waste heat of the boiler is recovered by the waste heat recovering means 1. In case that a required amount of hot water cannot be supplied by the means 1 alone, heat lacked by the waste heat is supplemented by feeding steam from the boiler directly to the lower heat exchanging drum 3 via a pipe 18 for heating water serving as the heating medium and utilizing hot water via the upper heating drum 2. Or otherwise, the heating-medium water is heated by attaching a burner to the lower heat exchanging durm and operating the burner to supplement the lacked heat, and heated water is used via the upper heat exchanging drum.
KOBAYASHI HIROSHI
HAYASHI YOSHIO
OGASAWARA HIDEYUKI
| JP43023760A | ||||
| JPS5726102U | 1982-02-10 | |||
| JPS473602U | 1972-09-06 | |||
| JPS5424366U | 1979-02-17 | |||
| JPS5685234U | 1981-07-09 |
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