Patent Number: 6,253,715

Title: Water-tube boiler

Abstract: A water-tube boiler which allows further NO.sub.x reduction and CO reduction to be implemented with an uncomplicated construction of the boiler body itself, and which is improved in boiler efficiency. The water-tube boiler includes a first water tube array made up of a plurality of first water tubes arranged into an annular shape and a combustion chamber inside the first water tube array.

Inventors: Takubo; Noboru (Matsuyama, JP), Tanaka; Takanori (Matsuyama, JP)

Assignee: Miura Co., Ltd.

International Classification: F24H 1/40 (20060101); F22B 21/00 (20060101); F22B 21/06 (20060101); F24H 1/22 (20060101); F22B 021/00 ()

Expiration Date: 07/03/2018