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16 条记录 (耗时 0.034 秒)

    Powered fuel combustion burner with nozzle flow guide
    6.
    发明授权
    Powered fuel combustion burner with nozzle flow guide 失效
    动力式燃油燃烧器，带喷嘴导流器

    公开(公告)号：US6152051A

    公开(公告)日：2000-11-28

    申请号：US51744

    申请日：1998-04-20

    申请人： Kenji Kiyama ,  Toshikazu Tsumura ,  Tadashi Jimbo ,  Koji Kuramashi ,  Shigeki Morita ,  Miki Mori

    发明人： Kenji Kiyama ,  Toshikazu Tsumura ,  Tadashi Jimbo ,  Koji Kuramashi ,  Shigeki Morita ,  Miki Mori

    IPC分类号： F23D1/00 ,  F23C1/10

    CPC分类号： F23D1/00 ,  F23C2202/40 ,  F23C2900/09002 ,  F23D2201/20 ,  F23D2209/20

    摘要： A combustion burner includes a mixture nozzle, a gas supply nozzle, and a flow guide. The mixture nozzle extends toward an interior of a furnace, and defines a mixture passage through which a mixture containing powdered solid fuel and gas for transferring the solid fuel flows. A distal end portion of the mixture nozzle is flared so that a flow passage area of the mixture passage increases progressively in a direction of flow of the mixture. The gas supply nozzle radially surrounds the mixture nozzle to define between the gas supply nozzle and the mixture nozzle a gas passage through which a combustion oxygen-containing gas flows toward the furnace. The flow guide is provided within the mixture nozzle at a position upstream of the flared portion of the mixture nozzle with respect to a flow of the mixture so as to make the mixture flow straight along an inner peripheral surface of the flared portion of the mixture nozzle.

    摘要翻译： PCT No.PCT / JP97 / 01489 Sec。 371日期：1998年4月20日 102（e）1998年4月20日PCT 1997年4月30日PCT PCT。 公开号WO98 / 08026 日期1998年2月26日燃烧器包括混合喷嘴，气体供给喷嘴和流动引导件。 混合物喷嘴朝向炉内部延伸，并且限定了混合物通道，含有固体燃料和固体燃料的混合物的混合物通过该混合通道流动。 混合喷嘴的远端部分展开，使得混合物通道的流动通道面积在混合物的流动方向上逐渐增加。 气体供给喷嘴径向地包围混合喷嘴，以在气体供给喷嘴和混合喷嘴之间限定燃烧含氧气体通过其流向炉的气体通道。 在混合喷嘴内，相对于混合物的流动，在混合喷嘴的扩口部分的上游位置处设置流动引导件，以使混合物沿着混合喷嘴的扩口部分的内周表面直线流动 。

    Boiler
    7.
    发明授权
    Boiler 失效
    锅炉

    公开(公告)号：US06338304B2

    公开(公告)日：2002-01-15

    申请号：US09376353

    申请日：1999-08-18

    申请人： Kenji Yamamoto ,  Hironobu Kobayashi ,  Hirofumi Okazaki ,  Toshikazu Tsumura ,  Kenji Kiyama

    发明人： Kenji Yamamoto ,  Hironobu Kobayashi ,  Hirofumi Okazaki ,  Toshikazu Tsumura ,  Kenji Kiyama

    IPC分类号： F23C110

    CPC分类号： F23C5/00 ,  F22B31/00 ,  F23C6/047 ,  F23C7/008 ,  F23C7/02 ,  F23C2201/101 ,  F28F19/00 ,  Y02E20/328

    摘要： A boiler has a combustion chamber formed by front and rear walls and a side wall extending between the front and rear walls. Plural stages of burners are placed on at least one of the front and rear walls. In the front and rear walls are opposing gas jets for making a pressure of the gas near the side wall within the combustion chamber higher than the pressure of the gas at a center portion of the combustion chamber. The gas jet ports are disposed at a height within a range of the height of the burner stages. The burner stages supply the pulverized coal, the air for transferring the pulverized coal and the air for burning. A part of the air for transferring the pulverized coal or the air for burning is supplied in a branched manner to the gas jet port and injected into the combustion chamber. Further, the air is preferably injected from the gas jet ports in a direct gas flow, not a swirling flow.

    摘要翻译： 锅炉具有由前壁和后壁形成的燃烧室和在前壁和后壁之间延伸的侧壁。 燃烧器的多级放置在前壁和后壁中的至少一个上。 前壁和后壁是相对的气体射流，用于使燃烧室内侧壁附近的气体压力高于燃烧室中心部分处的气体压力。 气体喷射口设置在燃烧器级的高度范围内的高度。 燃烧器阶段供应粉煤，用于转移粉煤的空气和用于燃烧的空气。 将用于转移粉煤或燃烧空气的空气的一部分以分支方式供给到气体喷射口并喷射到燃烧室中。 此外，空气优选地从气体喷射口以直接气流而不是涡流喷射。

    Boiler
    8.
    发明授权
    Boiler 有权

    公开(公告)号：US06490985B2

    公开(公告)日：2002-12-10

    申请号：US09996919

    申请日：2001-11-30

    申请人： Kenji Yamamoto ,  Hironobu Kobayashi ,  Hirofumi Okazaki ,  Toshikazu Tsumura ,  Kenji Kiyama

    发明人： Kenji Yamamoto ,  Hironobu Kobayashi ,  Hirofumi Okazaki ,  Toshikazu Tsumura ,  Kenji Kiyama

    IPC分类号： F23J1100

    CPC分类号： F23C5/00 ,  F22B31/00 ,  F23C6/047 ,  F23C7/008 ,  F23C7/02 ,  F23C2201/101 ,  F28F19/00 ,  Y02E20/328

    摘要： The invention provides a boiler provided with low cost means which can reduce a concentration of CO, an unburned matter, an attached ash and the like near a side wall and maintain a combustion state well with a simple structure. In a boiler having a combustion chamber 13 formed by front and rear walls (burner walls) provided with a plural stages of burners 2, 3 and 4 on at least one of them and opposing to each other, and side walls 1a and 1b crossing to said burner walls 14a and 14b, a gas port 6 containing no fuel for making a pressure of a gas near said side walls 1a and 1b within said combustion chamber 13 higher than a pressure of a gas at a center portion of said combustion chamber 13 is provided between an outermost burner and the side walls 1a and 1b within a range of a height of said burner stages 2, 3 and 4. A combustion gas 16 can not come close to the side walls 1a and 1b due to the jet 18 of the gas.

    Pulverized coal burner and method of using same
    9.
    发明授权
    Pulverized coal burner and method of using same 失效
    粉煤燃烧器及其使用方法

    公开(公告)号：US5806443A

    公开(公告)日：1998-09-15

    申请号：US462292

    申请日：1995-06-05

    申请人： Hironobu Kobayashi ,  Kiyoshi Narato ,  Masayuki Taniguchi ,  Tsuyoshi Kouno ,  Hirofumi Okazaki ,  Shigeki Morita ,  Toshikazu Tsumura

    发明人： Hironobu Kobayashi ,  Kiyoshi Narato ,  Masayuki Taniguchi ,  Tsuyoshi Kouno ,  Hirofumi Okazaki ,  Shigeki Morita ,  Toshikazu Tsumura

    IPC分类号： F23C99/00 ,  F23C7/00 ,  F23D1/00 ,  F23D1/02 ,  F23D17/00 ,  F23C1/12

    CPC分类号： F23C7/006 ,  F23D1/00 ,  F23D17/007

    摘要： To provide a pulverized coal burner capable of reducing the NOx concentration at the time of a low load, a pulverized coal burner includes a secondary air nozzle and a tertiary air nozzle concentrically positioned about the outer periphery of a fuel nozzle carrying a pulverized coal with a primary air, and two swirling flow generators are included at least one of these nozzles with a positional relation parallel to a flow of air. One of the swirling flow of the two swirling flow generators can be set strongly. And, under a condition of low air flow rate, air can be supplied from one swirling flow generator alone. Since the swirling strength of the combustion air can be increased, the concentration of NOx produced by the combustion of the pulverized coal can be reduced. Also, because the swirling strength at the time of low load can be increased, the NOx concentration can be reduced by keeping the pulverized coal flame stable.

    摘要翻译： 为了提供能够降低低负荷时的NOx浓度的粉煤燃烧器，粉煤燃烧器包括二次空气喷嘴和三次空气喷嘴，该二次空气喷嘴和三次空气喷嘴同轴地位于燃料喷嘴的外周，该燃料喷嘴承载有粉煤 一次空气和两个旋流产生器包括具有与空气流平行的位置关系的这些喷嘴中的至少一个。 两个回旋流发生器的旋流之一可以强烈地设定。 并且，在空气流量低的条件下，可以单独从一个旋流发生器供给空气。 由于能够提高燃烧空气的旋转强度，所以可以降低由粉煤燃烧产生的NOx的浓度。 此外，由于可以提高低负荷时的旋转强度，所以可以通过保持粉煤火焰稳定而降低NOx浓度。

    Solid fuel burner, burning method using the same, combustion apparatus and method of operating the combustion apparatus
    10.
    发明授权
    Solid fuel burner, burning method using the same, combustion apparatus and method of operating the combustion apparatus 有权
    固体燃料燃烧器，使用其的燃烧方法，燃烧装置和操作燃烧装置的方法

    公开(公告)号：US07168374B2

    公开(公告)日：2007-01-30

    申请号：US11011047

    申请日：2004-12-15

    申请人： Hirofumi Okazaki ,  Masayuki Taniguchi ,  Toshikazu Tsumura ,  Yoshitaka Takahashi ,  Kouji Kuramashi

    发明人： Hirofumi Okazaki ,  Masayuki Taniguchi ,  Toshikazu Tsumura ,  Yoshitaka Takahashi ,  Kouji Kuramashi

    IPC分类号： F23D1/00

    CPC分类号： F23C6/045 ,  F23C7/004 ,  F23C7/008 ,  F23C2201/20 ,  F23C2900/06041 ,  F23D1/00 ,  F23D2201/10 ,  F23D2201/20 ,  F23D2209/20

    摘要： A solid fuel burner using a low oxygen concentration gas as a transporting gas of a low grade solid fuel such as brown coal or the like and a combustion method using the solid fuel burner are provided. The solid fuel burner comprises a means for accelerating ignition of the fuel and a means for preventing slugging caused by combustion ash from occurring. Mixing of fuel and air inside a fuel nozzle 11 is accelerated by that an additional air nozzle 12 and a separator 35 for separating a flow passage are arranged in the fuel nozzle 11, and the exit of the additional air nozzle 12 is set at a position so as to overlap with the separator 35 when seeing from a direction perpendicular to a burner axis, and additional air is ejected in a direction nearly perpendicular to a flow direction of a fuel jet flowing through the fuel nozzle 11. An amount of air from the additional air nozzle 12 is varied corresponding to a combustion load. By increasing the amount of air from the additional air nozzle 12 at a low load operation, an oxygen concentration of a circulation flow 19 formed in a downstream portion outside the exit of the fuel nozzle 11 is increased to stably burn the fuel. By decreasing the amount of air from the additional air nozzle 12 at a high load operation, a flame is formed at a position distant from the fuel nozzle 11 to suppress radiant heat received by structures of the solid fuel burner and walls of the furnace.

    摘要翻译： 提供了使用低氧浓度气体作为低等固体燃料如褐煤等的输送气体的固体燃料燃烧器和使用固体燃料燃烧器的燃烧方法。 固体燃料燃烧器包括用于加速燃料点火的装置和用于防止由燃烧灰发生的堵塞的装置。 燃料喷嘴11内的燃料和空气的混合通过在燃料喷嘴11中设置有附加的空气喷嘴12和用于分离流路的分离器35而加速，并且附加空气喷嘴12的出口被设定在位置 以便在从与燃烧器轴垂直的方向观察时与分离器35重叠，并且附加空气沿与流过燃料喷嘴11的燃料射流的流动方向几乎垂直的方向喷射。 来自附加空气喷嘴12的空气量相应于燃烧负荷而变化。 通过在低负载运转下增加来自附加空气喷嘴12的空气量，形成在燃料喷嘴11的出口外的下游部分的循环流19的氧浓度增加，以稳定地燃烧燃料。 通过在高负荷运转下减少来自附加空气喷嘴12的空气量，在远离燃料喷嘴11的位置处形成火焰，以抑制由固体燃料燃烧器的结构和炉壁接收的辐射热。