METHODS OF COMBUSTION OF POWDERED FUELS AND POWDERED FUEL DISPERSIONS
    22.
    发明申请
    METHODS OF COMBUSTION OF POWDERED FUELS AND POWDERED FUEL DISPERSIONS 审中-公开
    粉末燃料和粉末燃料分散剂的燃烧方法

    公开(公告)号:US20090214992A1

    公开(公告)日:2009-08-27

    申请号:US12464416

    申请日:2009-05-12

    IPC分类号: F23N1/00 F23D1/02 F23N5/00

    摘要: Methods of combustion include metering a substantially explosible powder into an oxidizing gas using a positive displacement powder dispersion device to suspend the powder in the gas and directing the powder in the gas to form a controlled stream of a moving explosible powder dispersion. In some embodiments, the method further includes igniting the dispersion with an ignition source to produce a stationary deflagrating combustion wave and sustaining combustion by continuing to meter the powder into the gas. In other embodiments, the method further includes adjusting a nozzle velocity of the dispersion to reflect properties of the dispersion to create a sustainable flame and igniting the dispersion to produce a stationary deflagrating wave of the dispersion. In other embodiments, the method further includes igniting the dispersion in a combustion area to produce a stationary deflagrating wave such that a conductive heat transfer from combustion brings the powder to combustion temperature.

    摘要翻译: 燃烧方法包括使用正位移粉末分散装置将基本上可爆炸的粉末计量为氧化气体,以将粉末悬浮在气体中并将粉末引导到气体中以形成可移动的可爆炸粉末分散体的受控流。 在一些实施方案中,该方法还包括用点燃源点燃分散体以产生固定的燃烧波,并通过继续将粉末计量到气体中来维持燃烧。 在其他实施方案中,该方法还包括调节分散体的喷嘴速度以反映分散体的性质以产生可持续的火焰并点燃该分散体以产生该分散体的固定的易燃波。 在其他实施方案中,该方法还包括点燃燃烧区域中的分散体以产生固定的爆燃波,使得来自燃烧的导电热传递将粉末引入燃烧温度。

    Power plant with a fluidized bed combustion chamber
    24.
    发明授权
    Power plant with a fluidized bed combustion chamber 失效
    具有流化床燃烧室的发电厂

    公开(公告)号:US4530207A

    公开(公告)日:1985-07-23

    申请号:US602579

    申请日:1984-04-20

    申请人: Roine Brannstrom

    发明人: Roine Brannstrom

    摘要: A power plant with a combustion chamber (8) with a fluidized bed (14) and a device for adjusting the bed height, comprising a storage container (21) for bed material, the storage container (21) being connected to the combustion chamber (8) by a first conduit (22) for feeding out bed compound from the combustion chamber (8) to the container (21) and a second conduit (23) for returning bed compound from the container (21) to the combustion chamber (8). The storage container (21) is connected, via a conduit (34) with a valve, to a space having lower pressure than the pressure in the combustion chamber (8). The return conduit (23) is connected, via a conduit (67) with a valve, to a pressure gas source (10) having higher pressure than the pressure in the combustion chamber (8). Transport of bed compound from the combustion chamber (8) is achieved by reducing the pressure in the storage container (21). Return transport of bed compound to the combustion chamber (8) is brought about by supplying transport gas to the return conduit (23).

    摘要翻译: 一种具有带有流化床(14)的燃烧室(8)和用于调节床高度的装置的动力装置,包括用于床料的储存容器(21),所述储存容器(21)连接到所述燃烧室 8)由第一导管(22)将床化合物从燃烧室(8)输送到容器(21)和第二导管(23),用于将床化合物从容器(21)返回到燃烧室 )。 存储容器(21)经由具有阀的导管(34)连接到具有比燃烧室(8)中的压力低的压力的空间。 返回管道(23)经由具有阀的导管(67)连接到具有比燃烧室(8)中的压力更高的压力的压力气体源(10)。 通过降低储存容器(21)中的压力来实现床形成物从燃烧室(8)的输送。 通过向回流管道(23)供应输送气体,将床料返回到燃烧室(8)的返回运送。

    Combination rotating fluidized bed combustor and heat exchanger

    公开(公告)号:US4277938A

    公开(公告)日:1981-07-14

    申请号:US136654

    申请日:1979-10-15

    摘要: PCT No. PCT/US 79/00843 Sec. 371 Date Oct. 15, 1979 Sec. 102(e) Date Oct. 15, 1979 PCT Filed Oct. 15, 1979 A combination rotating fluidized bed combustor and rotating fluidized bed heat exchanger particularly adaptable as the combustor and heat exchange unit, respectively, of conventional gas turbine engines is preferably arranged with the combustor nested within the heat exchanger for maximum compactness. The heat exchanger comprises an annular fluidized bed, defined by inner and outer spaced apart coaxial cylindrical, perforated walls, which rotates about the longitudinal axis of the cylinders. The bed is comprised of pulverulent inert particulate material and includes fluid-containing heat exchange tubes passing substantially longitudinally therethrough. Hot gases, such as turbine exhaust gases, enter the bed through the outer perforated wall, heat and fluidize the bed particles, heat the gas, usually compressed air, in the tubes, and exit the bed through the inner perforated wall. The heat exchange tubes direct the compressed air flowing therein from an inlet adjacent the inner perforated wall to an outlet adjacent the outer perforated wall such that the compressed air flows substantially countercurrently to the hot fluidizing gas. The combustor also comprises an annular fluidized bed, defined by inner and outer spaced apart coaxial, cylindrical, perforated walls, which rotates about the longitudinal axis of the cylinders. The heated, compressed air exiting the heat exchanger tubes and solid or liquid fuel enter the combustor bed through the outer perforated wall and fluidize the bed. The air reacts with the fuel within the bed to produce hot combustion gas which exits the bed, together with unreacted compressed air, through the inner perforated wall. When employed with gas turbine engines, the gases exiting the bed are directed into and through the vanes of the gasifier turbine and the power turbine and then into the rotating fluidized bed heat exchanger as the heating and fluidizing medium therefor.

    Combustion devices for powdered fuels and powdered fuel dispersions
    27.
    发明授权
    Combustion devices for powdered fuels and powdered fuel dispersions 有权
    粉末燃料和粉末燃料分散体的燃烧装置

    公开(公告)号:US08100095B2

    公开(公告)日:2012-01-24

    申请号:US12466873

    申请日:2009-05-15

    IPC分类号: F02B45/00

    摘要: An engine includes at least one cylinder, an intake valve, a conduit, a positive displacement powdered fuel dispensing device, and an oxidizing gas source supplying an oxidizing gas to the conduit. The cylinder is defined by a cylinder block having a bore, a cylinder head coupled to the top of the cylinder block, and a piston received in the bore of the cylinder block. The intake valve is communicatively coupled with the cylinder head. The conduit is communicatively coupled with the intake valve. The positive displacement powdered fuel dispensing device is communicatively coupled with the conduit. The positive displacement powdered fuel dispensing device meters a supply of a powdered fuel including a substantially explosible powder such that the intake valve admits a powdered fuel dispersion including the substantially explosible powder dispersed in the oxidizing gas at an explosible ratio such that the powdered fuel dispersion is explosible.

    摘要翻译: 发动机包括至少一个气缸,进气阀,导管,正排量粉末燃料分配装置和向导管供应氧化气体的氧化气体源。 气缸由具有孔的气缸体,联接到气缸体的顶部的气缸盖和容纳在气缸体的孔中的活塞限定。 进气门与气缸盖通信联接。 导管与进气阀连通地连接。 正排量粉末燃料分配装置与导管连通地连接。 正排量粉末燃料分配装置测量包括基本上可爆炸的粉末的粉末燃料的供应,使得进气阀允许包含基本上可爆炸的粉末的粉末状燃料分散体以分散在氧化气体中的可燃比例使得粉末燃料分散体为 爆炸性