Watertube boiler


Application Number: 00108228
Application Date: 2000.04.30
Publication Number: 1272605
Publication Date: 2000.11.08
Priority Information: 1999/4/30 JP 123576/99
International: F22B21/06
Applicant(s) Name: Miura Kogyo K. K.
Address:
Inventor(s) Name: Takubo Sho;Tanaka Takanori
Patent Agency Code: 72001
Patent Agent: yang yong
Abstract The invention provides a water-tube boiler including a first water tube array made up of a plurality of first water tubes arranged into an annular shape, a combustion chamber defined inside the first water tube array, a first opening defined at part of the first water tube array, a cooling water tube array made up of a plurality of cooling water tubes arranged into an annular shape in a zone within the combustion chamber where burning-reaction ongoing gas is present, gaps provided between adjacent cooling water tubes so as to permit the burning-reaction ongoing gas to flow through, and a burning-reaction continuing zone, where burning reaction is continuously effected, provided between the cooling water tube array and the first water tube array, whereby the burning-reaction ongoing gas generally uniformly contacts the individual cooling water tubes.