Method and system for reheating flue gas using waste heat to maintain dry chimney stack operation

    公开(公告)号:US09657943B2

    公开(公告)日:2017-05-23

    申请号:US14757316

    申请日:2015-12-16

    IPC分类号: F23J15/00 F23J15/08 F28C3/02

    摘要: Flue gas is a by-product of many energy and industrial plants and is typically emitted through a chimney stack. If the flue gas temperature in the chimney stack drops below the flue gas dew point, condensation of water vapor and acid gases ensues. These gases are very corrosive for chimney stacks designed to operate in a dry condition. The Flue Gas Reheat System of the present invention continuously and proactively manages flue gas chimney stack temperatures above the dew point in order to optimize emission control and effectuate energy efficiency improvements in industrial plants. Waste heat is harvested from the exterior surfaces of existing steam and pollution control equipment through conduction, convection and radiation. This heat is transferred to a working fluid. The working fluid is then directly mixed with the flue gas prior to the flue gas entering the chimney stack to raise the temperature of (or re-heat) the flue gas above its dew point to maintain a dry chimney stack condition. The use of residual or waste heat from throughout the plant and the minimal equipment required to harvest the waste heat reduces the operating cost and improves the overall reliability of the system. This method is useful in many industries, including electric power generation plants and other energy intensive process industries that seek emission control and various boiler and fuel energy efficiency improvements, many of which improvements result in a reduction in normal chimney stack temperature.

    APPLICATION SYSTEM FOR APPLYING A COATING AGENT
    3.
    发明申请
    APPLICATION SYSTEM FOR APPLYING A COATING AGENT 有权
    涂料代理申请制度

    公开(公告)号:US20160290724A1

    公开(公告)日:2016-10-06

    申请号:US15035021

    申请日:2014-11-03

    发明人: Lothar Rademacher

    摘要: An application system for applying a coating agent onto a component, in particular for applying a sealant onto a motor vehicle body part, includes a material supply for providing the coating agent, a temperature control device for controlling the temperature of the coating agent, an applicator for applying the coating agent, and a coating agent line between the material supply and the applicator. The temperature control device controls the temperature of the coating agent in the coating agent line downstream of the material supply.

    摘要翻译: 将涂布剂施加到部件上,特别是用于在机动车身部件上施加密封剂的涂布系统包括用于提供涂布剂的材料供应源,用于控制涂布剂温度的温度控制装置,涂布器 用于施加涂覆剂,以及在材料供应和施加器之间的涂覆剂管线。 温度控制装置控制涂料剂在材料供应下游的涂层剂的温度。

    STAGED REACTION PLENUM PARTITION WALL FOR FURNACE
    5.
    发明申请
    STAGED REACTION PLENUM PARTITION WALL FOR FURNACE 审中-公开
    标准反应锅炉分隔炉

    公开(公告)号:US20160320127A1

    公开(公告)日:2016-11-03

    申请号:US15107545

    申请日:2015-01-08

    摘要: An array includes a plurality of refractory bricks, each having a substantially tubular body including a first end, an opposed second end, a central bore extending from the first end to the second end along the longitudinal length thereof and defining an inner surface of the refractory brick, and an outer surface extending from the first end to the second end along the longitudinal length thereof. The outer surface of each refractory brick has a shape that transitions axially between a plurality of hexagonal portions and non-hexagonal portions along the longitudinal lengths thereof, and the plurality of refractory bricks are arranged and interlocked with one another in a vertical and horizontal manner via mating members provided on the hexagonal portions of the outer surfaces thereof. A continuous plenum space is defined by the non-hexagonal portions of the refractory bricks arranged in the array.

    摘要翻译: 阵列包括多个耐火砖,每个耐火砖具有基本上管状的主体,其包括第一端,相对的第二端,沿其纵向长度从第一端延伸到第二端的中心孔,并且限定耐火材料的内表面 砖,以及沿其纵向长度从第一端延伸到第二端的外表面。 每个耐火砖的外表面具有沿着其纵向长度在多个六边形部分和非六边形部分之间轴向转变的形状,并且多个耐火砖以垂直和水平的方式相互排列和互锁,通过 设置在其外表面的六边形部分上的配合构件。 由布置在阵列中的耐火砖的非六边形部分限定连续的增压空间。

    VENT ICE PREVENTION METHOD
    6.
    发明申请
    VENT ICE PREVENTION METHOD 有权
    VENT ICE预防方法

    公开(公告)号:US20130340983A1

    公开(公告)日:2013-12-26

    申请号:US13530263

    申请日:2012-06-22

    IPC分类号: F28D7/10 F28F13/00

    摘要: An improved vent ice prevention method including introducing a cold vent stream into a first conduit, wherein at least a portion of the first conduit is concentric with a second conduit, thereby producing an annular region, introducing a hot vent stream into a third conduit, and wherein the third conduit is in fluid connection with the annular region, thereby preventing the first conduit or the second conduit from forming ice. The cold vent stream is a cold compressor seal vent stream. The hot vent stream is a warm compressor seal vent stream.

    摘要翻译: 一种改进的排气防冰方法,包括将冷排气流引入第一管道,其中第一管道的至少一部分与第二管道同心,从而产生环形区域,将热排气流引入第三管道,以及 其中所述第三导管与所述环形区域流体连通,从而防止所述第一导管或所述第二导管形成冰。 冷排气流是冷压缩机密封排放流。 热排气流是热压缩机密封排放流。

    Gas injection apparatus
    7.
    发明授权
    Gas injection apparatus 失效
    注气装置

    公开(公告)号:US4584180A

    公开(公告)日:1986-04-22

    申请号:US612549

    申请日:1984-05-21

    申请人: Anatoly A. Ostrov

    发明人: Anatoly A. Ostrov

    摘要: A gas injection apparatus for injecting a quench gas. The gas injection apparatus provides a means for injecting a quench gas into a hot gas contained in a vessel having an inner liner. The apparatus is designed such that the independent thermal expansions and contractions of the inner liner do not create excess thermal stresses on an expansible supply duct. The expansible supply duct provides the means for transferring the gas from outside the vessel into the gas stream. A plenum assembly, creating an interface between the expansible supply duct and the inner liner is sealably attached to the inner liner allowing perpendicular injection of the quench gas while maintaining the liner's integrity.

    摘要翻译: 一种用于喷射骤冷气体的气体注入装置。 气体注入装置提供了将骤冷气体注入包含在具有内衬的容器中的热气体的装置。 该设备被设计成使得内衬的独立热膨胀和收缩不会在可膨胀的供应管道上产生过多的热应力。 可膨胀的供应管道提供了将气体从容器外部转移到气流中的装置。 在可膨胀供应管道和内衬层之间形成界面的集气室组件可密封地附接到内衬,允许垂直注入骤冷气体,同时保持衬管的完整性。

    Process for quenching product gas of slagging coal gasifier
    8.
    发明授权
    Process for quenching product gas of slagging coal gasifier 失效
    炉渣煤气化炉产品气淬火工艺

    公开(公告)号:US4054424A

    公开(公告)日:1977-10-18

    申请号:US583966

    申请日:1975-06-05

    摘要: A process is disclosed for quenching of the partial combustion product gas of a slagging coal gasifier containing suspended molten slag particles wherein the hot product gas of the gasifier is passed through a tubular quench zone into which a shielding gas is introduced circumferentially to form an annular layer or protective gas shield between the product gas and the walls of the quench zone and a cooling gas is injected radially to effect direct cooling of the product gas to a temperature at which the molten slag particles solidify and lose their stickiness, said protective gas shield being maintained for a sufficient distance along the axis of the quench zone to prevent contact between the quench zone walls and the hot product gas during said cooling.

    摘要翻译: 公开了一种用于淬火含有悬浮熔渣的排渣煤气化器的部分燃烧产物气体的方法,其中气化器的热产物气体通过管状淬火区,其中保护气体周向引入到其中以形成环形层 或产品气体和骤冷区壁之间的保护气体屏蔽,并且径向地注入冷却气体,以使产物气体直接冷却至熔融炉渣颗粒固化并失去粘性的温度,所述保护气体屏蔽层 沿着淬火区域的轴线保持足够的距离,以防止在冷却期间淬火区域壁与热产物气体之间的接触。