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    REHEAT BOILER
    2.
    发明申请
    REHEAT BOILER 审中-公开
    再热锅炉

    公开(公告)号：US20110139092A1

    公开(公告)日：2011-06-16

    申请号：US13058052

    申请日：2009-08-26

    Applicant: Junji Imada ,  Isao Uchida ,  Syuji Sato ,  Hideo Fukuda

    Inventor： Junji Imada ,  Isao Uchida ,  Syuji Sato ,  Hideo Fukuda

    IPC: F22B37/40

    CPC classification number: F22B37/40 ,  F22G1/04 ,  F22G1/16

    Abstract: Provided is a reheat boiler in which the imbalance in temperature distribution of the temperature of the combustion gas at the outlet of a reheat furnace is reduced by changing the gas flow pattern in the reheat burner. A reheat boiler includes a main boiler configured such that main combustion gas generated in combustion in a burner flows from a furnace through a superheater and evaporator tubes, a reheat furnace that is disposed on the downstream of the evaporator tubes and produces reheat combustion gas by combustion in a reheat burner, and a reheater disposed above the reheat furnace. A closing plate, serving as a drift preventing portion, is provided at a reheat furnace outlet that connects the reheat furnace and the reheater to form a flow path for the combustion gas and the reheat combustion gas so as to narrow the cross-sectional area of the flow path for the combustion gas.

    Abstract translation: 提供一种再热锅炉，其中通过改变再热燃烧器中的气体流动模式来减少再热炉出口处的燃烧气体的温度分布的不平衡。 再热锅炉包括：主锅炉，其构造成使得在燃烧器中产生的主燃烧气体通过过热器和蒸发器管从炉中流出，再热炉设置在蒸发器管的下游并通过燃烧产生再热燃烧气体 在再热炉中设置再热器。 在再热炉出口处设有用作防漂移部分的封闭板，其连接再热炉和再热器，以形成用于燃烧气体和再热燃烧气体的流动通道，从而将横截面积 用于燃烧气体的流动路径。

    M-TYPE PULVERIZED COAL BOILER SUITABLE FOR ULTRAHIGH STEAM TEMPERATURE
    10.
    发明申请
    M-TYPE PULVERIZED COAL BOILER SUITABLE FOR ULTRAHIGH STEAM TEMPERATURE 有权
    M型粉煤锅炉适用于超高温蒸汽温度

    公开(公告)号：US20140033712A1

    公开(公告)日：2014-02-06

    申请号：US13579173

    申请日：2011-11-11

    Applicant: Minhua Jiang ,  Ping Xiao ,  Jianzhong Jiang ,  Li Zhong

    Inventor： Minhua Jiang ,  Ping Xiao ,  Jianzhong Jiang ,  Li Zhong

    IPC: F01K7/34 ,  F01K13/00 ,  F22G1/04 ,  F22B29/06 ,  F22D1/02

    CPC classification number: F01K7/34 ,  F01K13/006 ,  F22B21/345 ,  F22B29/06 ,  F22D1/02 ,  F22G1/04 ,  F22G7/12

    Abstract: The disclosure provides an M-type pulverized coal boiler suitable for ultrahigh steam temperature. The pulverized coal boiler comprises a hearth of which the bottom is provided with a slag hole and a tail downward flue of which the lower part is provided with a flue gas outlet. The pulverized coal boiler further comprises a middle flue communicated between the hearth and the tail downward flue, wherein the middle flue comprises an upward flue and a hearth outlet downward flue of which the bottoms are mutually communicated and the upper ends are respectively communicated with the upper end of the hearth and the upper end of the tail downward flue to form a U-shaped circulation channel. In the pulverized coal boiler provided by the disclosure, the middle flue which extends downwards and can make flue gas flow along the U-shaped circulation channel is arranged between the outlet of the hearth and the tail downward flue, so that high-temperature flue gas from the hearth can be introduced into a position with low elevation through the downward flue, and final-stage convection heating surfaces (such as a high-temperature superheater and a high-temperature reheater) can be arranged at positions with low height, and the length of ultrahigh-temperature steam pipelines between the high-temperature superheater and a steam turbine, and between the high-temperature reheater and the steam turbine can be greatly reduced. Therefore, the manufacturing cost of a boiler unit is obviously reduced.

    Abstract translation: 本公开提供适用于超高温蒸汽温度的M型粉煤锅炉。 粉煤锅炉包括炉底，底部设有炉渣孔和尾部向下烟道，其下部设有烟气出口。 粉煤锅炉还包括在炉床和尾部向下烟道之间连通的中间烟道，其中中间烟道包括向上烟道和炉底出口向下烟道，其底部相互连通，并且上端分别与上部烟道连通 炉底端部和尾部上端向下流动，形成U型循环通道。 在本公开提供的粉煤锅炉中，向下延伸并且可使烟道气沿着U形循环通道流动的中间烟道布置在炉床出口和尾部向下烟道之间，使得高温烟道气 从炉底可以通过向下的烟道引入低仰角的位置，并且可以在低高度的位置处布置终级对流加热表面（例如高温过热器和高温再热器），并且 在高温过热器和蒸汽轮机之间以及高温再热器和汽轮机之间的超高温蒸汽管道的长度可以大大降低。 因此，锅炉单元的制造成本明显降低。

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