Exhaust reflux device
    13.
    发明专利
    Exhaust reflux device 审中-公开
    排气回流装置

    公开(公告)号:JP2014005822A

    公开(公告)日:2014-01-16

    申请号:JP2012181459

    申请日:2012-08-20

    Inventor: LIAO CHIU-HUEI

    Abstract: PROBLEM TO BE SOLVED: To provide an exhaust reflux device capable of controlling reflux quantity of exhaust gas based on an oxygen content of the exhaust gas.SOLUTION: A valve 40 for controlling connection or interruption between an exhaust pipe 12 and a suction pipe 11 is provided on an exhaust reflux pipe 30 connected to the exhaust pipe 12 and the suction pipe 11. An oxygen content of exhaust gas detected by an oxygen sensor 50 whose sensor part is attached to the exhaust pipe 12 is converted into a voltage signal and outputted to a controller 60. The controller 60 comprised of a microprocessor controls an aperture of the valve 40 based on the voltage signal outputted from the oxygen sensor 50. When the oxygen content of the exhaust gas becomes a set value or more, the aperture of the valve 40 is made larger than 0%, and the exhaust gas containing oxygen of a high concentration flowing in the exhaust pipe 12 is refluxed to the suction pipe 11 through the exhaust reflux pipe 30.

    Abstract translation: 要解决的问题:提供一种能够基于排气的氧含量控制废气回流量的排气回流装置。解决方案:用于控制排气管12和吸入管11之间的连接或中断的阀40是 设置在与排气管12和吸入管11连接的排气回流管30上。由传感器部附接到排气管12的氧传感器50检测出的排气的氧含量被转换为电压信号,并输出到 控制器60.由微处理器组成的控制器60基于从氧传感器50输出的电压信号来控制阀40的孔径。当废气的氧含量变为设定值或更大时,阀的孔径 40大于0%,并且排出管12中流过的含有高浓度的氧的排气通过排气回流管30回流到吸入管11。

    Method for modifying pulverized coal boiler
    16.
    发明专利
    Method for modifying pulverized coal boiler 有权
    改造粉煤锅炉的方法

    公开(公告)号:JP2011089711A

    公开(公告)日:2011-05-06

    申请号:JP2009243581

    申请日:2009-10-22

    Abstract: PROBLEM TO BE SOLVED: To provide a method for modifying a pulverized coal boiler of an oxygen combustion boiler system reducing a heat load to a furnace wall of the pulverized coal burner, and capable of inexpensively maintaining structural reliability by a short construction period. SOLUTION: In the method for modifying the pulverized coal boiler into the oxygen combustion boiler system by installing an oxygen manufacturing device, and a CO 2 recovery device recovering, separating CO 2 gas from combustion exhaust gas discharged from the boiler, a burner of a middle stage of plural stages of burners installed in a furnace of the pulverized coal boiler is halted, a new burner is installed in an opening for after air port installment of a furnace wall surface, one part of recirculation gas circulating oxygen manufactured by the oxygen manufacturing device and one part of exhaust gas discharged from the pulverized coal boiler to the pulverized coal boiler is conducted to the plural stages of burners excluding the halted burner and the new burner provided in the opening for after air port installment to supply the oxygen and the recirculation gas into the furnace and to adjust a temperature in the furnace. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种氧化锅炉系统的粉煤锅炉的改造方法,其将对粉煤燃烧器的炉壁的热负荷降低,能够以较短的施工周期廉价地维持结构可靠性 。 解决方案:在通过安装氧气制造装置和CO 2 回收装置将粉煤锅炉改造为氧燃烧锅炉系统的方法中,分离CO 2 从锅炉排出的燃烧废气中的气体,安装在粉煤锅炉的炉中的多级燃烧器中段的燃烧器停止,新的燃烧器安装在用于后空气口安装的开口中 炉壁表面,由氧制造装置制造的再循环气体循环氧气的一部分和从粉煤锅炉排出到粉煤锅炉的废气的一部分被进行到除了停止燃烧器和新燃烧器之外的多级燃烧器 设置在用于后空调装置的开口中以将氧气和再循环气体供应到炉中并调节炉中的温度。 版权所有(C)2011,JPO&INPIT

    Method and device for low nox combustion
    20.
    发明专利

    公开(公告)号:JP2004125379A

    公开(公告)日:2004-04-22

    申请号:JP2003141253

    申请日:2003-05-20

    CPC classification number: F23C9/08 F23C2202/30 F23C2203/20 F23D14/68 F23D14/78

    Abstract: PROBLEM TO BE SOLVED: To provide a method and a device for low NOx and CO combustion capable of easily realizing a remarkable reduction in NOx to lower exhausted NOx value to 10 ppm or below. SOLUTION: In this low NOx combustion method for realizing a reduction in NOx by controlling the temperature of combustion gas from a burner, the temperature of the combustion gas is suppressed by a heat absorbing body group, the temperature of the combustion gas is suppressed by re-circulating combustion completed gas to the combustion reaction area of the combustion gas, and the temperature of the combustion gas is suppressed by adding water or steam to the combustion air of the burner in combination with each other. Thus, the temperature of the combustion gas from the burner can be suppressed. COPYRIGHT: (C)2004,JPO

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