Low NO.sub.x gas burner apparatus and methods
    1.
    发明授权
    Low NO.sub.x gas burner apparatus and methods 失效
    低NOx燃气燃烧装置及方法

    公开(公告)号:US5275552A

    公开(公告)日:1994-01-04

    申请号:US79104

    申请日:1993-06-17

    CPC分类号: F23D14/22 F23C9/006 F23M5/025

    摘要: Improved gas burner apparatus and methods of burning fuel gas-air mixtures are provided whereby flue gases having low NO.sub.x contents are formed. The burner apparatus includes a refractory burner tile having an air discharge opening therein and a wall surrounding the opening which extends into the furnace space and provides a mixing zone therein. At least one passage is formed in the burner tile which opens into the mixing zone and fuel gas is jetted through the passage whereby flue gases are drawn therethrough and a fuel gas-flue gases mixture is discharged into the mixing zone. The fuel gas-flue gases mixture is swirled in the mixing zone and mixes with air therein, and the resulting mixture is discharged and burned in a primary reaction zone in the furnace space.

    摘要翻译: 提供了改进的气体燃烧器装置和燃烧燃料气体 - 空气混合物的方法,由此形成具有低NOx含量的烟道气。 燃烧器装置包括在其中具有排气口的耐火燃烧器瓦和围绕开口的壁,其延伸到炉空间中并在其中提供混合区。 在燃烧器砖中形成至少一个通道,其通向混合区,并且燃料气体通过通道喷射,由此将烟道气从其中排出,燃料气体 - 烟道气混合物被排出到混合区中。 将燃料气体 - 烟道气混合物在混合区域中旋转并与其中的空气混合,并将所得混合物在炉内空间的一级反应区域排出并燃烧。

    Low NO.sub.x gas burner apparatus and methods
    3.
    发明授权
    Low NO.sub.x gas burner apparatus and methods 失效
    低NOX气体燃烧器装置和方法

    公开(公告)号:US5238395A

    公开(公告)日:1993-08-24

    申请号:US858563

    申请日:1992-03-27

    CPC分类号: F23D14/22 F23C9/006 F23M5/025

    摘要: Improved gas burner apparatus and methods of burning fuel gas-air mixtures are provided whereby flue gases having low NO.sub.x contents are formed. The burner apparatus includes a refractory burner tile having an air discharge opening therein and a wall surrounding the opening which extends into the furnace space and provides a mixing zone therein. At least one passage is formed in the burner tile which opens into the mixing zone and fuel gas is jetted through the passage whereby flue gases are drawn therethrough and a fuel gas-flue gases mixture is discharged into the mixing zone. The fuel gas-flue gases mixture is swirled in the mixing zone and mixes with air therein, and the resulting mixture is discharged and burned in a primary reaction zone in the furnace space.

    Methods and apparatus for burning fuel with low NO.sub.x formation
    4.
    发明授权
    Methods and apparatus for burning fuel with low NO.sub.x formation 失效
    用于燃烧低NOx形成燃料的方法和装置

    公开(公告)号:US5154596A

    公开(公告)日:1992-10-13

    申请号:US836779

    申请日:1992-02-13

    IPC分类号: F23C6/04 F23C9/00 F23D14/20

    摘要: Improved methods and burner apparatus are provided for discharging mixturesf fuel and air into furnace spaces wherein said mixtures are burned and flue gases having low NO.sub.x content are formed therefrom. The methods basically comprise discharging a first fuel mixture containing a portion of the fuel and flue gases from the furnace space into the furnace space whereby the mixture is burned in a primary reaction zone therein and flue gases having low NO.sub.x content are formed therefrom, and then discharging the remaining portion of the fuel into a secondary reaction zone wherein the remaining portion of fuel mixes with air and flue gases to form a second fuel mixture which is burned in the secondary reaction zone and additional flue gases having low NO.sub.x contents are formed therefrom.

    摘要翻译: 提供改进的方法和燃烧器装置,用于将燃料和空气的混合物排放到炉空间中,其中所述混合物被燃烧,并且由此形成具有低NOx含量的烟道气。 这些方法基本上包括将含有一部分燃料和烟道气的第一燃料混合物从炉子空间排放到炉子空间中,由此混合物在其中的初级反应区域中燃烧,并由此形成具有低NOx含量的烟道气,然后 将剩余部分的燃料排放到二次反应区中,其中燃料的剩余部分与空气和烟道气混合以形成在第二反应区中燃烧的第二燃料混合物,并由其形成具有低NO x含量的另外的烟道气。

    Methods and apparatus for burning fuel with low No.sub.x formation
    5.
    发明授权
    Methods and apparatus for burning fuel with low No.sub.x formation 失效
    燃烧低NOx形成燃料的方法和装置

    公开(公告)号:US5344307A

    公开(公告)日:1994-09-06

    申请号:US111447

    申请日:1993-08-25

    摘要: Improved methods and burner apparatus are provided for discharging mixtures of fuel and air into furnace spaces wherein said mixtures are burned and flue gases having low NO.sub.x content are formed therefrom. The methods basically comprise discharging a first fuel mixture containing a portion of the fuel and flue gases from the furnace space into the furnace space whereby the mixture is burned in a primary reaction zone therein and flue gases having low NO.sub.x content are formed therefrom, and then discharging the remaining portion of the fuel into a secondary reaction zone wherein the remaining portion of fuel mixes with air and flue gases to form a second fuel mixture which is burned in the secondary reaction zone and additional flue gases having low NO.sub.x content are formed therefrom.

    摘要翻译: 提供改进的方法和燃烧器装置,用于将燃料和空气的混合物排放到炉空间中,其中所述混合物被燃烧,并且由此形成具有低NOx含量的烟道气。 这些方法基本上包括将含有一部分燃料和烟道气的第一燃料混合物从炉子空间排放到炉子空间中,由此混合物在其中的初级反应区域中燃烧,并由此形成具有低NOx含量的烟道气,然后 将剩余部分的燃料排放到二次反应区中,其中剩余部分的燃料与空气和烟道气混合以形成在第二反应区中燃烧的第二燃料混合物,并由其形成另外的NOx含量的烟道气。

    Methods and apparatus for burning fuel with low NO.sub.x formation
    6.
    发明授权
    Methods and apparatus for burning fuel with low NO.sub.x formation 失效
    用于燃烧低NOx形成燃料的方法和装置

    公开(公告)号:US5269678A

    公开(公告)日:1993-12-14

    申请号:US921064

    申请日:1992-07-29

    摘要: Improved methods and burner apparatus are provided for discharging mixtures of fuel and air into furnace spaces wherein said mixtures are burned and flue gases having low NO.sub.x content are formed therefrom. The methods basically comprise discharging a first fuel mixture containing a portion of the fuel and flue gases from the furnace space into the furnace space whereby the mixture is burned in a primary reaction zone therein and flue gases having low NO.sub.x content are formed therefrom, and then discharging the remaining portion of the fuel into a secondary reaction zone wherein the remaining portion of fuel mixes with air and flue gases to form a second fuel mixture which is burned in the secondary reaction zone and additional flue gases having low NO.sub.x content are formed therefrom.

    摘要翻译: 提供改进的方法和燃烧器装置,用于将燃料和空气的混合物排放到炉空间中,其中所述混合物被燃烧,并且由此形成具有低NOx含量的烟道气。 这些方法基本上包括将含有一部分燃料和烟道气的第一燃料混合物从炉子空间排放到炉子空间中,由此混合物在其中的初级反应区域中燃烧,并由此形成具有低NOx含量的烟道气,然后 将剩余部分的燃料排放到二次反应区中,其中剩余部分的燃料与空气和烟道气混合以形成在第二反应区中燃烧的第二燃料混合物,并由其形成另外的NOx含量的烟道气。

    Methods and apparatus for burning fuel with low NO.sub.x formation
    7.
    发明授权
    Methods and apparatus for burning fuel with low NO.sub.x formation 失效
    用于燃烧低NOx形成燃料的方法和装置

    公开(公告)号:US5098282A

    公开(公告)日:1992-03-24

    申请号:US578953

    申请日:1990-09-07

    IPC分类号: F23C6/04 F23C9/00 F23D14/20

    摘要: Improved methods and burner apparatus are provided for discharging mixtures of fuel and air into furnace spaces wherein said mixtures are burned and flue gases having low NO.sub.x content are formed therefrom. The methods basically comprise discharging a first fuel mixture containing a portion of the fuel and flue gases from the furnace space into the furnace space whereby the mixture is burned in a primary reaction zone therein and flue gases having low NO.sub.x content are formed therefrom, and then discharging the remaining portion of the fuel into a secondary reaction zone wherein the remaining portion of fuel mixes with air and flue gases to form a second fuel mixture which is burned in the secondary reaction zone and additional flue gases having low NO.sub.x content are formed therefrom.

    摘要翻译: 提供改进的方法和燃烧器装置,用于将燃料和空气的混合物排放到炉空间中,其中所述混合物被燃烧,并且由此形成具有低NOx含量的烟道气。 这些方法基本上包括将含有一部分燃料和烟道气的第一燃料混合物从炉子空间排放到炉子空间中,由此混合物在其中的初级反应区域中燃烧,并由此形成具有低NOx含量的烟道气,然后 将剩余部分的燃料排放到二次反应区中,其中剩余部分的燃料与空气和烟道气混合以形成在第二反应区中燃烧的第二燃料混合物,并由其形成另外的NOx含量的烟道气。

    Circular clarifier including improved skimmer clarifier
    10.
    发明授权
    Circular clarifier including improved skimmer clarifier 失效
    圆形澄清器,包括改进的撇渣器澄清器

    公开(公告)号:US5200079A

    公开(公告)日:1993-04-06

    申请号:US540835

    申请日:1990-06-20

    IPC分类号: B01D21/06 B01D21/24

    摘要: A circular clarifier includes a skimmer assembly mounted on a rotatable arm of the clarifier. The skimmer assembly includes a parallelogram linkage having a pair of end links pivotably connected between upper and lower intermediate links. The skimmer blade is mounted to one of the end links to skim the liquid containing volume of the clarifier. The parallelogram linkage is mounted to the rotating arm by a support assembly at upper and lower pivot connections. These pivot connections are positioned at central portions of the respective intermediate links such that both of the intermediate links extend outwardly on both sides of the respective pivot connection. Either a counterweight or a floatation element is mounted to the parallelogram linkage to bias the linkage for rotation about the pivot connections to position the skimmer blade in an upper position.

    摘要翻译: 圆形澄清器包括安装在澄清器的可旋转臂上的撇渣器组件。 撇渣器组件包括平行四边形连杆机构,其具有可枢转地连接在上部和下部中间连杆之间的一对端部连杆。 撇渣器叶片安装到一个端部连接件上,以清除澄清池的容纳液体的容积。 平行四边形连杆通过上部和下部枢轴连接处的支撑组件安装到旋转臂。 这些枢转连接件位于相应的中间连杆的中心部分处,使得两个中间连接件在相应的枢轴连接的两侧向外延伸。 配重或浮动元件安装到平行四边形连杆机构以偏置连杆机构以围绕枢转连接件旋转以将撇渣器刀片定位在上部位置。