BOILER AND METHOD FOR CONTROLLING BOILER
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United States of America Patent
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Issued Date -
Jun 18, 2020
app pub date -
Aug 28, 2019
filing date -
Dec 18, 2018
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Abstract
An object of the present disclosure is to appropriately reduce NOx and CO. A boiler includes: a can body having water pipe; a burner for supplying primary fuel and air into the can body; a secondary fuel supply unit for supplying secondary fuel into the can body downstream of the burner in a flow direction of combustion gas; a cooling line for introducing a cooling fluid for reducing temperature of a predetermined space in the can body downstream of the burner in the flow direction of the combustion gas; a flow rate adjusting unit capable of adjusting a flow rate of the cooling fluid introduced into the can body from the cooling line; and a control unit for controlling the flow rate adjusting unit to control the flow rate of the cooling fluid such that the temperature of the predetermined space is 800° C. or more and 1200° C. or less.
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