Water heater with low emission gas burner
    1.
    发明授权
    Water heater with low emission gas burner 失效
    具有低排放气体燃烧器的热水器

    公开(公告)号:US5791298A

    公开(公告)日:1998-08-11

    申请号:US743881

    申请日:1996-11-06

    申请人: Ian M. Rodgers

    发明人: Ian M. Rodgers

    摘要: An atmospheric, low emission gas burner within the combustion chamber of a hot water heater in which the combustion chamber is sealed against entry of air except for the air/gas mixture entering through the burner. The burner comprises a venturi through which gas and air enter and a diffuser disposed about the venturi, the diffuser and venturi constructed to take advantage of the high thermal buoyancy within the water heater. The burner operates at low manifold pressure and creates low emissions of NOx and CO. The burner diffuser has a multiplicity of small slots disposed on the upper surface which is covered by a course mesh fabric material having relatively large openings designed to keep the flame front above and off the diffuser while maintaining a stable flame that does not flashback. Several openings in the base of the combustion chamber permit escape of a pressure pulse that occurs upon initial ignition, a porous material or a flap covering each of the openings for permitting the pulse to escape but preventing air from entering therethrough.

    摘要翻译: 在热水加热器的燃烧室内的大气低排放气体燃烧器,其中除了通过燃烧器进入的空气/气体混合物之外,燃烧室被密封以防止空气进入。 燃烧器包括文丘里管,气体和空气通过该文丘里管和围绕文丘里管设置的扩散器,扩散器和文氏管被构造成利用热水器内的高热浮力。 燃烧器散热器在低歧管压力下工作,并产生低排放的NOx和CO。燃烧器扩散器具有多个设置在上表面上的小槽,其由具有相对较大开口的过程网状织物覆盖,设计成将火焰保持在上方 并且在保持不会回火的稳定火焰的同时离开扩散器。 在燃烧室底部的几个开口允许在初始点火时发生的压力脉冲的逸出,多孔材料或覆盖每个开口的翼片,以允许脉冲逸出,但是防止空气进入其中。

    Premixed gas burner
    2.
    发明授权
    Premixed gas burner 失效
    预混煤气燃烧器

    公开(公告)号:US5743727A

    公开(公告)日:1998-04-28

    申请号:US786032

    申请日:1997-01-21

    申请人: Ian M. Rodgers

    发明人: Ian M. Rodgers

    IPC分类号: F23D14/10 F23D14/12

    CPC分类号: F23D14/105

    摘要: A premixed gas burner has an elongated hollow burner body including a burner deck formed by a multiplicity of burner ports about a small sector of the body. The burner body is closed at one end and an elongated distribution tube is received within the body through and extending out the other end. The end of the distribution tube extending out of the burner body has an inlet into which a mixture of gas and air may enter, the opposite end of the distribution tube being closed. A series of directional ports formed between louvered slats adjacent the closed end and spaced from the inlet are formed along a small sector of the distribution tube and directs the mixture of gas and air back toward the inlet end. The sector of the distribution tube in which the ports are formed is substantially 180.degree. from the sector of the burner body in which the deck ports are formed. The construction provides good mixing, and substantially prevents flashback by having high velocity throughout the burner, and good distribution without a high pressure drop.

    摘要翻译: 预混气体燃烧器具有细长的中空燃烧器本体,其包括燃烧器甲板,所述燃烧器甲板由围绕主体的小部分的多个燃烧器端口形成。 燃烧器主体在一端封闭,并且细长的分配管容纳在主体内并且延伸出另一端。 从燃烧器本体延伸的分配管的端部具有入口,气体和空气的混合物可以进入该入口,分配管的相对端被封闭。 沿着分配管的小部分形成一系列定向端口,其形成在靠近封闭端并与入口间隔开的百叶板板之间,并将气体和空气的混合物引导回入口端。 其中形成有端口的分配管的扇区与形成有甲板端口的燃烧器主体的扇形部分基本上为180°。 该结构提供了良好的混合,并且通过在整个燃烧器处具有高速度并且在没有高压降的情况下具有良好的分布,并且基本上防止回火。

    Premixed gas burner
    3.
    发明授权
    Premixed gas burner 失效
    预混煤气燃烧器

    公开(公告)号:US5520536A

    公开(公告)日:1996-05-28

    申请号:US435733

    申请日:1995-05-05

    摘要: A premixed gas burner has a hollow body including a closed end and an entry end into which a combustible gas and air mixture may flow. The body has a multiplicity of apertures through which the mixture may pass from the hollow interior. A burner portal deck is positioned in superposed relationship over the apertures for permitting the gas air mixture to form a controlled flame. A porous woven fabric formed from ceramic fiber having high thermal insulation properties is located above the deck and separates the deck from the flame front formed when the mixture is ignited. The fabric insulates the deck from excessive temperatures, prevents flash back, allows use of conventional stainless steel for the deck and body components and makes possible the manufacture of long burner sections. A long burner section has a number of decks in side-by-side relationship with an insulating fabric mat over the decks for not only providing insulation, but also forms a gasket between the adjacent decks.

    摘要翻译: 预混气体燃烧器具有中空体,该空心体包括封闭端和可燃气体和空气混合物可流入的进入端。 主体具有多个孔,混合物可以从中空内部通过。 燃烧器入口甲板位于孔的重叠关系上,以允许气体空气混合物形成受控的火焰。 由具有高绝热性能的陶瓷纤维形成的多孔织物位于甲板上方,并将甲板与混合物点燃时形成的火焰前缘分开。 织物将甲板隔离过温,防止闪回,允许使用传统的不锈钢作为甲板和车身部件,并可制造长的燃烧器部分。 长燃烧器部分具有与甲板上的绝缘织物垫并排关系的多个甲板,不仅提供绝缘,而且在相邻甲板之间形成垫圈。

    Side shot burner
    4.
    发明授权
    Side shot burner 有权
    侧喷燃烧器

    公开(公告)号:US06428313B1

    公开(公告)日:2002-08-06

    申请号:US09957048

    申请日:2001-09-21

    IPC分类号: F23D1462

    摘要: A burner having an elongated cylindrical body closed at one end with a plurality of ports spaced apart in two rows along the upper segment of the body, said ports formed by punching. The ports have an upper edge and a lower edge wherein the lower edge is displaced a first distance below the upper edge and a second distance beyond a vertical axis tangent to the upper edge. Accordingly, flames are emitted substantially sideways out of the cylindrical body and any drippings on the tube are directed away from the cavity of the cylindrical body.

    摘要翻译: 一种具有细长圆柱形主体的燃烧器,其一端在沿主体的上部分段分隔成两排的多个端口封闭,所述端口通过冲孔形成。 端口具有上边缘和下边缘,其中下边缘在上边缘下方移动第一距离,并且超过与上边缘相切的垂直轴线的第二距离。 因此,火焰基本上侧向地从圆柱体中排出,并且管上的任何滴落物被引导离开圆柱体的空腔。

    Low emission gas burner
    5.
    发明授权
    Low emission gas burner 失效
    低排放气体燃烧器

    公开(公告)号:US5915954A

    公开(公告)日:1999-06-29

    申请号:US123694

    申请日:1998-07-28

    申请人: Ian M. Rodgers

    发明人: Ian M. Rodgers

    摘要: An atmospheric, low emission gas burner within the combustion chamber of a hot water heater in which the combustion chamber is sealed against entry of air except for the air/gas mixture entering through the burner. The burner comprises a venturi through which gas and air enter and a diffuser disposed about the venturi, the diffuser and venturi constructed to take advantage of the high thermal buoyancy within the water heater. The burner operates at low manifold pressure and creates low emissions of NOx and CO. The burner diffuser has a multiplicity of small slots disposed on the upper surface which is covered by a course mesh fabric material having relatively large openings designed to keep the flame front above and off the diffuser while maintaining a stable flame that does not flashback. Several openings in the base of the combustion chamber permit escape of a pressure pulse that occurs upon initial ignition, a porous material or a flap covering each of the openings for permitting the pulse to escape but preventing air from entering therethrough.

    摘要翻译: 在热水加热器的燃烧室内的大气低排放气体燃烧器,其中除了通过燃烧器进入的空气/气体混合物之外,燃烧室被密封以防止空气进入。 燃烧器包括文丘里管,气体和空气通过该文丘里管和围绕文丘里管设置的扩散器,扩散器和文氏管被构造成利用热水器内的高热浮力。 燃烧器散热器在低歧管压力下工作,并产生低排放的NOx和CO。燃烧器扩散器具有多个设置在上表面上的小槽,其由具有相对较大开口的过程网状织物覆盖,设计成将火焰保持在上方 并且在保持不会回火的稳定火焰的同时离开扩散器。 在燃烧室底部的几个开口允许在初始点火时发生的压力脉冲的逸出,多孔材料或覆盖每个开口的翼片,以允许脉冲逸出,但是防止空气进入其中。

    Premixed gas burner orifice
    6.
    发明授权
    Premixed gas burner orifice 失效
    预混气体燃烧器孔

    公开(公告)号:US5762490A

    公开(公告)日:1998-06-09

    申请号:US878722

    申请日:1997-06-19

    申请人: Ian M. Rodgers

    发明人: Ian M. Rodgers

    IPC分类号: F23D14/10 F23D14/64 F23D14/62

    CPC分类号: F23D14/64 F23D14/105

    摘要: A premixed gas burner for use in a boiler or the like has a burner body including a distribution tube into which air under pressure and a gas fuel are received. The gas is supplied to the distribution tube through a gas supply orifice tube having a flange in the form of a disk disposed about the periphery of the gas supply tube and positioned a short distance within the distribution tube. The gas supply tube has a number of orifices located about the tube adjacent to the downstream facing surface of the flange. The distribution tube is located within a pressurized air chamber and gas supplied from a manifold to the supply tube is mixed turbulently adjacent the downstream face of the flange. The invention extends the operating range of premixed gas burners and reduces the carbon monoxide and NO.sub.x output of the burner.

    摘要翻译: 在锅炉等中使用的预混气体燃烧器具有燃烧器本体,其包括分配管,受压空气和气体燃料。 气体通过气体供给孔管供给到分配管,该气体供给孔管具有围绕气体供给管的周边设置的圆盘形式的凸缘,并且在分配管内定位很短的距离。 气体供给管具有邻近于凸缘的下游侧表面的管周围的多个孔。 分配管位于加压空气室内,并且从歧管供应到供应管的气体在凸缘的下游侧面湍流地混合。 本发明延长了预混燃气燃烧器的工作范围,并减少了燃烧器的一氧化碳和NOx输出。

    Gas burner with radiant retention head
    7.
    发明授权
    Gas burner with radiant retention head 失效
    气体燃烧器与辐射保持头

    公开(公告)号:US5562440A

    公开(公告)日:1996-10-08

    申请号:US392376

    申请日:1995-02-21

    申请人: Ian M. Rodgers

    发明人: Ian M. Rodgers

    IPC分类号: F23D14/08 F23D14/26 F23D14/12

    摘要: An inshot-gas burner for gas burning furnaces and other gas burning appliances has a flame retention head at the outlet formed from porous ceramic foam with a central opening through which a flame may project. A velocity reducing insert is located within the mixing chamber of the burner for reducing the velocity of the mixture received by the head in the area spaced about the central openings so that the head is radiant in operation. The porosity of the foam is in the order of 20 to 60 pores per inch. When radiant, the head permits the burner to operate at higher primary aerations, and provides faster burning velocity and thus lower residence time, and additionally provides a lower maximum temperature and a stable quiet flame. This permits the burner to emit low amounts of nitric oxide and nitrogen dioxide without increasing the amount of carbon monoxide emissions. The head may be formed from other materials and the velocity reduction may be provided by other structures, one of which is a composite head having restrictive discreet porting.

    摘要翻译: 气体燃烧炉和其他燃气器具的气体燃烧器具有在出口处形成的阻燃头,该多孔陶瓷泡沫具有中心开口,火焰可以通过该中心开口突出。 降低速度的插入件位于燃烧器的混合室内,用于降低在围绕中心开口间隔开的区域中由头部接收的混合物的速度,使得头部在工作中辐射。 泡沫的孔隙率为每英寸20至60个孔的数量级。 当辐射时,头部允许燃烧器在较高的初级曝气中操作,并且提供更快的燃烧速度并因此降低停留时间,并且另外提供较低的最高温度和稳定的安静的火焰。 这允许燃烧器排放少量的一氧化氮和二氧化氮,而不增加一氧化碳排放量。 头可以由其他材料形成,并且速度降低可以由其他结构提供,其中一个结构是具有限制性分离移植的复合头。