专利名称：INJECTING METHOD FORzika
AMMONIAACONTAINING GAS MIXTURE 发明人：AOKI NOBUO
申请号：JP14039577
申请日：19771122
公开号：JPS5472765Agreatwall
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宿妖瞳catoblepas公开日：
gap是什么意思
拼写的英文
19790611
cos是什么专利内容由知识产权出版社提供
摘要：PURPOSE:To prevent excessive ri in temp. of NH3-contg. gas mixt, and nozzle for the gas mixt., which is injected into a high-temp. exhaust gas from a coal burning boiler etc. in order to denitrate the exhaust gas, by cooling and circulating a portion of NH3-contg. gas mixt. fed to the injection nozzle through a clod cycle system. CONSTITUTION:Sterm (air) and NH3 gas, who flow quantities are controlled respectively by control valves 1, 2, are mixed in a pipe line 7 and fed to injection nozzles 3, and is aprayed into high-temp. gas. The temp of the mixed gas is maintained at a temp. not higher than about 600 deg.C for steam-NH3, and 400 deg. for air-NH3 (to prevent decomposition of NH3). Excessive gas mixt. is delivered through a return pipe 4 to a cooler 5, where it is cooled, then it is pressureized by a blower 6 and is circulated to the nozzle 3. This process makes it unnecessary to u double tube and insulating material as well for nozzles.give up
顺德培训申请人：ISHIKAWAJIMA HARIMA HEAVY IND
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