Pyrolysis heater with paired burner zoned firing system
    2.
    发明授权
    Pyrolysis heater with paired burner zoned firing system 失效
    热解加热器配对燃烧器分区射击系统

    公开(公告)号:US06425757B1

    公开(公告)日:2002-07-30

    申请号:US09880588

    申请日:2001-06-13

    IPC分类号: F27B900

    CPC分类号: C10G9/20

    摘要: A pyrolysis heater has the inlet sections of the process coils grouped together and the outlet sections of these same process coils also grouped together. High heat liberation hearth burners are located adjacent to the inlet sections of the coils and lower heat liberation burners are located adjacent to the outlet sections. The secondary fuel tips of the burners are inclined toward the adjacent heater wall. The high heat liberation hearth burners adjacent to the inlet coils are arranged in spaced apart pairs with the secondary burner tips of each of the pair being inclined toward the other burner of the pair.

    摘要翻译: 热解加热器将过程线圈的入口部分组合在一起,并且这些相同过程线圈的出口部分也被组合在一起。 高放热炉底燃烧器邻近线圈的入口部分定位,下部放热燃烧器位于出口部分附近。 燃烧器的二次燃料尖端朝向相邻的加热器壁倾斜。 与入口线圈相邻的高热释放炉膛燃烧器以间隔开的对布置,其中每对的二次燃烧器尖端朝着该对的另一个燃烧器倾斜。

    Coal firing furnace and method of operating a coal-fired furnace
    4.
    发明授权
    Coal firing furnace and method of operating a coal-fired furnace 失效
    燃煤炉和操作燃煤炉的方法

    公开(公告)号:US6148744A

    公开(公告)日:2000-11-21

    申请号:US401357

    申请日:1999-09-21

    摘要: A method of operating a pulverized coal-firing furnace so as to achieve no more than a predetermined variation in the instantaneous vertical velocities of the flow exiting a combustion chamber of the furnace is provided. The method includes, in one variation thereof, providing a series of lower compartments for introducing therethrough one of air, fuel, and air and fuel into the combustion chamber. At least one upper compartment is disposed above the topmost compartment of the series of lower compartments at a relative disposition to the topmost compartment in a spacing range between a contiguous disposition to a more spaced disposition which is no more than twice the average spacing between any given compartment and an adjacent compartment. Air is injected from the at least one upper compartment generally in opposition to the swirling fireball along a direction which is offset to the other side of the diagonal in a manner such that the injected air promotes the evolution of the swirling fireball into an upward flow in the top half of the furnace characterized by portions thereof flowing upward at differing vertical velocities with a maximum variation of no more than thirty percent between the instantaneous vertical velocities of the portions of the upward flow as measured across a horizontal plane in the top half of the furnace.

    摘要翻译: 提供了一种操作粉煤燃烧炉的方法,以便达到不超过离开燃烧室的流的瞬时垂直速度的预定变化。 该方法在其一个变型中包括提供一系列下部隔室,用于将空气,燃料和空气和燃料中的一个引入燃烧室。 至少一个上部隔间设置在一系列下部隔室的最上部隔间的上方,以相对配置到最上面隔间的间隔范围内的间隔范围内,间隔距离与间隔更宽的位置之间的距离不超过任何给定的间隔之间的平均间距的两倍 隔间和相邻的隔间。 空气从所述至少一个上隔室通常以与旋转的火球相反的方式从沿对角线的另一侧的方向喷射,使得喷射的空气促进旋转火球向上流动的方式 炉的上半部分,其特征在于其部分以不同的垂直速度向上流动,在向上流动的部分的瞬时垂直速度之间的最大变化不超过百分之三十,最大变化在跨越上半部分的上半部分的水平面上测量 炉。

    Method of operating a coal-fired furnace to control the flow of
combustion products
    5.
    发明授权
    Method of operating a coal-fired furnace to control the flow of combustion products 失效
    操作燃煤炉的方法来控制燃烧产物的流动

    公开(公告)号:US6138588A

    公开(公告)日:2000-10-31

    申请号:US371453

    申请日:1999-08-10

    摘要: A method of operating a pulverized coal-firing furnace is provided which includes injecting air from an upper compartment generally in opposition to a swirling fireball. The method also provides the step of sensing a temperature characteristic of one side of a convection pass of the furnace. The sensed value, in accordance with the method of the present invention, is then evaluated to determine if the sensed value of the temperature characteristic exceeds an allowable value. In response to a determination that the temperature characteristic exceeds the allowable value, the momentum of the air injected through the upper air compartment is changed. After the step of changing the momentum of the air injected through the upper air compartment, the temperature characteristic of the one convection pass location is sensed to obtain a post adjustment value of the temperature characteristic and compared to an allowable value.

    摘要翻译: 提供了一种操作粉煤燃烧炉的方法,其包括从通常与漩涡火球相对的上隔室喷射空气。 该方法还提供了感测炉的对流通过的一侧的温度特性的步骤。 然后根据本发明的方法对感测值进行评估,以确定感测到的温度特性值是否超过允许值。 响应于温度特性超过允许值的确定,通过上部空气室喷射的空气的动量被改变。 在改变通过上部空气室喷射的空气的动量的步骤之后,检测一个对流通过位置的温度特性,以获得温度特性的后调整值,并将其与容许值进行比较。