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US 8,757,102 B2Granted
Boiler
AssigneeMiura Co., Ltd.
InventorsTomohiro Ookubo, Kyousuke Ookubo, Soji Sumi
Life of this patent
Estimating the term…
Abstract
A boiler according to the present invention includes: a plurality of heat transfer tubes arranged to form a cylindrical shape between an upper header and a lower header to constitute a heat transfer tube row; a boiler body cover of a cylindrical shape provided between the upper header and the lower header so as to surround the heat transfer tube row; and a heat insulating material provided to a predetermined region of a space between the heat transfer tube row and the boiler body cover.
Claims6
A boiler comprising:
- a plurality of heat transfer tubes arranged to form a cylindrical shape between an upper header and a lower header to constitute a heat transfer tube row;
- a longitudinal fin connected to the heat transfer tube row;
- a boiler body cover of a cylindrical shape provided between the upper header and the lower header so as to surround the heat transfer tube row;
- a flue connected to the boiler body cover having an opening;
- and
- a heat insulating material provided to a predetermined region of a space between the heat transfer tube row and the boiler body cover and extending a predetermined length in a vertical direction that is less than the length of the heat transfer tubes, and is less than the length of the longitudinal fin connected to the heat transfer tube row.
3 more elements
A boiler comprising:
- a plurality of inner heat transfer tubes arranged to form a cylindrical shape between an upper header and a lower header to constitute an inner heat transfer tube row;
- a plurality of outer heat transfer tubes arranged to form a cylindrical shape between the upper header and the lower header so as to surround the inner heat transfer tube row to constitute an outer heat transfer tube row;
- a flue connected to the boiler body cover having an opening;
- a plurality of inner longitudinal fins provided to close gaps between the adjacent plurality of inner heat transfer tubes except at one end in a vertical direction of the inner heat transfer tube row;
- a plurality of outer longitudinal fins provided to close gaps between the adjacent plurality of outer heat transfer tubes except at another end in a vertical direction of the outer heat transfer tube row;
- a longitudinal fin connected to the outer heat transfer tube row;
- a boiler body cover of a cylindrical shape provided between the upper header and the lower header so as to surround the outer heat transfer tube;
- and
- a heat insulating material provided to a predetermined region of a space between the outer heat transfer tube row and the boiler body cover, and extending a predetermined length in a vertical direction that is less than the length of the heat transfer tubes, and is less than the length of the longitudinal fins connected to the outer heat transfer tube row.
6 more elements
Dependencies are inferred from the claim text.