System and method for optimizing burner uniformity and NOx

    公开(公告)号:US11221136B2

    公开(公告)日:2022-01-11

    申请号:US16609534

    申请日:2018-05-25

    发明人: David G. Schalles

    IPC分类号: F23C7/02

    摘要: A method of operating a combustion burner to heat a furnace. Fuel and combustion air are supplied into a combustion zone and ignited. Additional combustion air is supplied into the atmosphere outside of the combustion zone. The amount of additional combustion air supplied outside of the combustion zone is decreased as a temperature of the atmosphere inside the furnace increases such that the content of nitrogen oxides (NOx), as corrected for 3% O2 (cNOx (3% O2)), in the gases generated by combustion of the fuel and the combustion air and emitted from the furnace maintained below a predetermined value.

    Combustion system for a boiler
    52.
    发明授权

    公开(公告)号:US10948182B2

    公开(公告)日:2021-03-16

    申请号:US14934221

    申请日:2015-11-06

    摘要: The present disclosure relates to a system and a method for combustion of solid fuels. The combustion system includes burners which supply a mixed flow of fuel and air through a fuel nozzle to the combustion chamber for example of a boiler. The mixed flow of fuel and primary air is supplied to the burner through a duct from a pulverizer where the fuel is grinded to the required finesse. The duct further bends in such a way that one portion is vertical with respect parallel to axis of the boiler 1 A-A is vertical duct and other portion is horizontal duct which is parallel to axis B-B of the fuel nozzle.

    Burner
    53.
    发明授权
    Burner 有权

    公开(公告)号:US09822968B2

    公开(公告)日:2017-11-21

    申请号:US14411729

    申请日:2013-04-24

    申请人: IHI Corporation

    摘要: A burner comprises a nozzle main body (7) which is installed along a central axis of a throat (4) provided on a furnace wall (3) and comprises an inner nozzle (11) in which an auxiliary combustion air (24) flows and an outer nozzle (9) which is provided on an outer side and concentrically with the inner nozzle and in which a pulverized coal mixed flow (18) obtained by mixing a carrying medium with a pulverized coal flow, a wind box (5) for accommodating the nozzle main body, a secondary air regulator (8) accommodated in the wind box and provided at a tip portion of the nozzle main body, an auxiliary combustion air intake pipe (23) for introducing a combustion air as an auxiliary combustion air (22) into the inner nozzle from the wind box, a pulverized coal flow supply pipe (16) for introducing a pulverized coal mixed flow into the outer nozzle, and an oxygen-containing gas supply pipe (17) for supplying an oxygen-containing gas (19) to the pulverized coal mixed flow and raising the oxygen concentration in the pulverized coal mixed flow.

    Method for operating a burner
    54.
    发明授权
    Method for operating a burner 有权
    操作燃烧器的方法

    公开(公告)号:US09103547B2

    公开(公告)日:2015-08-11

    申请号:US12266407

    申请日:2008-11-06

    摘要: A method and an apparatus are provided for the combustion of gaseous fuel containing hydrogen or consisting of hydrogen, with a burner which provides a swirl generator, into which liquid fuel is fed centrally along a burner axis, at the same time forming a conically shaped liquid fuel column which is surrounded by a rotating combustion air stream which flows tangentially into the swirl generator and into which, additionally, a gaseous and/or liquid fuel is injected so as to form a fuel/air swirl flow which is transferred downstream of the swirl generator, along a transitional portion, into a mixing zone following the transitional portion downstream and which is ignited and burnt in a combustion chamber following downstream, at the same time forming a backflow zone.

    摘要翻译: 提供了一种方法和装置,用于燃烧包含氢气或由氢构成的气体燃料,燃烧器提供涡流发生器,液体燃料沿着燃烧器轴向中心地供给到该涡流发生器中,同时形成锥形液体 燃料柱,其被旋转的燃烧空气流围绕,所述旋转的燃烧空气流切向地流入涡流发生器,并且另外注入气体和/或液体燃料以形成燃料/空气涡流,其转移到涡流的下游 发电机沿着过渡部分进入跟随过渡部分下游的混合区域,并且在下游的燃烧室中被点燃和燃烧,同时形成回流区。

    PULVERIZED-COAL SUPPLY SYSTEM FOR COAL GASIFICATION FURNACE
    56.
    发明申请
    PULVERIZED-COAL SUPPLY SYSTEM FOR COAL GASIFICATION FURNACE 审中-公开
    用于煤气化炉的粉煤供应系统

    公开(公告)号:US20130298465A1

    公开(公告)日:2013-11-14

    申请号:US13980932

    申请日:2012-02-20

    IPC分类号: F23C7/02

    摘要: To provide a pulverized-coal supply system for a coal gasification furnace in which the consumption of inert gas (the amount used) can be reduced. The pulverized-coal supply system is equipped with a pulverized-coal supply hopper (3) that receives pulverized coal pulverized by a coal pulverizer (1); a first pressure tank (31) that, when the pulverized-coal supply hopper (3) receives the pulverized coal, temporarily recovers part of inert gas filled in the pulverized-coal supply hopper (3) and supplies the recovered inert gas into the pulverized-coal supply hopper (3), whose interior is in an atmospheric pressure state; and a second pressure tank (32) filled with inert gas having a pressure necessary for increasing the inner pressure of the pulverized-coal supply hopper (3) to a predetermined pressure.

    摘要翻译: 提供一种可以减少惰性气体消耗量(使用量)的煤气化炉的粉煤供给系统。 粉煤供给系统配备有接收由粉煤机(1)粉碎的粉煤的粉煤供给料斗(3)。 第一压力罐(31)当粉煤供给料斗(3)接收粉煤时,暂时回收填充在粉煤供给料斗(3)中的一部分惰性气体,并将回收的惰性气体供给粉碎 (3),其内部处于大气压状态; 以及填充有具有将粉煤供给料斗(3)的内部压力提高到规定压力所需的压力的惰性气体的第二压力罐(32)。

    Air staged low-NOx burner
    57.
    发明授权
    Air staged low-NOx burner 有权
    空气低NOx燃烧器

    公开(公告)号:US07175423B1

    公开(公告)日:2007-02-13

    申请号:US10111637

    申请日:2000-10-26

    摘要: An apparatus and method for using staged air combustion. The apparatus includes a burner body (10) secured to a port block (42), and a fuel passageway (12) extending through the burner body (10), terminating in a fuel nozzle (22), which injects fuel into the burner throat (40). Primary air jets (20) are configured to inject primary air into a primary combustion region (24), which is normally in the burner throat (40). A dish with a dish surface (28) is connected to the burner throat (40); the dish surface (28) extending in a divergent angle with respect to a burner centerline (35). Secondary air jets (34) are connected to the air passageway (14) and extend through the port block (42). The secondary air jets (34) inject secondary air into a secondary combustion region (38), which may be at the dish surface (28) or the hot face (30) of the burner.

    摘要翻译: 一种使用分段空气燃烧的装置和方法。 该装置包括固定到端口块(42)的燃烧器主体(10)和延伸穿过燃烧器本体(10)的燃料通道(12),终止于燃料喷嘴(22)中,燃料喷嘴将燃料喷射到燃烧器喉部 (40)。 一次空气喷嘴(20)被配置成将一次空气喷射到通常在燃烧器喉部(40)中的主燃烧区域(24)中。 具有盘表面(28)的盘与燃烧器喉部(40)连接; 所述盘表面(28)相对于燃烧器中心线(35)以发散角延伸。 二次空气喷射器(34)连接到空气通道(14)并延伸穿过端口块(42)。 二次空气喷射器(34)将二次空气注入二次燃烧区域(38),二次燃烧区域可以在燃烧器的盘表面(28)或热面(30)处。

    Pilot burner apparatus and method for operating
    58.
    发明授权
    Pilot burner apparatus and method for operating 有权
    先导燃烧器及其操作方法

    公开(公告)号:US6139311A

    公开(公告)日:2000-10-31

    申请号:US307124

    申请日:1999-05-07

    摘要: An apparatus and method for operating a pilot burner apparatus and a main burner apparatus of a gas-fired appliance. The pilot burner apparatus draws combustion air from a first environment. The main combustion apparatus draws air from a second environment. In a shutdown condition, such as when a flammable vapor source is accidentally exposed to the second environment, the pilot burner apparatus draws air containing an undesired flammable vapor which eliminates the pilot flame, triggering a gas valve to close and shut down the fuel gas supply to the main burner apparatus and the pilot burner apparatus.

    摘要翻译: 一种用于操作燃气器具的引燃燃烧器装置和主燃烧器装置的装置和方法。 引燃燃烧器装置从第一环境吸入燃烧空气。 主燃烧装置从第二环境抽取空气。 在关闭状态下,例如当易燃蒸汽源意外地暴露于第二环境时,引燃燃烧器装置抽吸含有不期望的可燃性蒸气的空气,其消除了引燃火焰,触发燃气阀关闭和关闭燃料气体供应 到主燃烧器装置和引燃燃烧器装置。

    Low pollution burner for oil-well tests
    60.
    发明授权
    Low pollution burner for oil-well tests 失效
    用于油井试验的低污染燃烧器

    公开(公告)号:US6027332A

    公开(公告)日:2000-02-22

    申请号:US748868

    申请日:1996-11-14

    摘要: The invention describes a nozzle and a burner for oil-well tests comprising a plurality of nozzles. The nozzle comprises means for injecting an air-oil mixture to be burnt in the direction of a combustion zone, the flow of air at the outlet of the nozzle allowing the air in the air-oil mixture to create an air induction effect, that is to say entrainment of air, which is sufficient along the whole length of the jet to ensure the combustion.

    摘要翻译: 本发明描述了一种用于油井测试的喷嘴和燃烧器,其包括多个喷嘴。 喷嘴包括用于喷射沿燃烧区方向燃烧的空气 - 油混合物的装置,喷嘴出口处的空气流使得空气 - 油混合物中的空气产生空气感应效应,即 说是夹带空气,这在喷射器的整个长度上是足够的,以确保燃烧。