公开(公告)号：US08950345B2

公开(公告)日：2015-02-10

申请号：US13643747

申请日：2011-04-26

申请人： Yupeng Wang ,  Hong Tang ,  Yuwang Miao ,  Wucheng Liu ,  Jingwu Zhang ,  Yubin Zhang ,  Shuweng Sun ,  Xingyuan Cui ,  Xixin Yang ,  Xinguang Wang ,  Zeru Gong ,  Lei Yi ,  Yingtao Wang

发明人： Yupeng Wang ,  Hong Tang ,  Yuwang Miao ,  Wucheng Liu ,  Jingwu Zhang ,  Yubin Zhang ,  Shuweng Sun ,  Xingyuan Cui ,  Xixin Yang ,  Xinguang Wang ,  Zeru Gong ,  Lei Yi ,  Yingtao Wang

IPC分类号： F23D1/00 ,  F23K3/02 ,  F23C7/00

CPC分类号： F23D1/00 ,  F23C7/006 ,  F23D2201/20

摘要： A pulverized coal burner and a pulverized coal boiler. The coal burner comprises a primary air cylinder (111) and a pulverized coal concentration device (112). The coal concentration device (112) makes the concentration of the coal flow gradually decrease from inside to outside along the radial direction, with respect to an axis (100) of the primary air cylinder (111). The coal burner further comprises a coal separating cylinder (113) and a coal guiding cylinder (114) located downstream of the device (112), the rear end of the cylinder (113) is connected with the front end of the coal guiding cylinder (114). The outlet of the cylinder (114) has a conical expansion portion (1141). The coal burner further comprises a divergent nozzle (115) connected with the rear end of the primary air cylinder (111) and whose cross-sectional area gradually increases along the flow direction of the coal flow.

摘要翻译： 粉煤燃烧器和粉煤锅炉。 煤燃烧器包括主气缸（111）和粉煤浓缩装置（112）。 煤浓缩装置（112）使得煤流的浓度相对于主气缸（111）的轴线（100）沿径向从内向外逐渐减小。 煤燃烧器还包括煤分离筒（113）和位于装置（112）下游的导煤筒（114），气缸（113）的后端与导煤筒（ 114）。 气缸（114）的出口具有锥形膨胀部分（1141）。 煤燃烧器还包括与主气缸（111）的后端连接的扩散喷嘴（115），其横截面积沿着煤流的流动方向逐渐增加。

公开(公告)号：US20130098278A1

公开(公告)日：2013-04-25

申请号：US13643747

申请日：2011-04-26

申请人： Yupeng Wang ,  Hong Tang ,  Yuwang Miao ,  Wucheng Liu ,  Jingwu Zhang ,  Yubin Zhang ,  Shuweng Sun ,  Xingyuan Cui ,  Xixin Yang ,  Xinguang Wang ,  Zeru Gong ,  Lei Yi ,  Yingtao Wang

发明人： Yupeng Wang ,  Hong Tang ,  Yuwang Miao ,  Wucheng Liu ,  Jingwu Zhang ,  Yubin Zhang ,  Shuweng Sun ,  Xingyuan Cui ,  Xixin Yang ,  Xinguang Wang ,  Zeru Gong ,  Lei Yi ,  Yingtao Wang

IPC分类号： F23D1/00

CPC分类号： F23D1/00 ,  F23C7/006 ,  F23D2201/20

摘要： A pulverized coal burner and a pulverized coal boiler. The coal burner comprises a primary air cylinder (111) and a pulverized coal concentration device (112). The coal concentration device (112) makes the concentration of the coal flow gradually decrease from inside to outside along the radial direction, with respect to an axis (100) of the primary air cylinder (111). The coal burner further comprises a coal separating cylinder (113) and a coal guiding cylinder (114) located downstream of the device (112), the rear end of the cylinder (113) is connected with the front end of the coal guiding cylinder (114). The outlet of the cylinder (114) has a conical expansion portion (1141). The coal burner further comprises a divergent nozzle (115) connected with the rear end of the primary air cylinder (111) and whose cross-sectional area gradually increases along the flow direction of the coal flow.

摘要翻译： 粉煤燃烧器和粉煤锅炉。 煤燃烧器包括主气缸（111）和粉煤浓缩装置（112）。 煤浓缩装置（112）使得煤流的浓度相对于主气缸（111）的轴线（100）沿径向从内向外逐渐减小。 煤燃烧器还包括煤分离筒（113）和位于装置（112）下游的导煤筒（114），气缸（113）的后端与导煤筒（ 114）。 气缸（114）的出口具有锥形膨胀部分（1141）。 煤燃烧器还包括与主气缸（111）的后端连接的扩散喷嘴（115），其横截面积沿着煤流的流动方向逐渐增加。

公开(公告)号：US10364981B2

公开(公告)日：2019-07-30

申请号：US12921658

申请日：2008-06-18

申请人： Yupeng Wang ,  Hong Tang ,  Yuwang Miao ,  Tao Niu ,  Huaijun Ma ,  Peng Liu ,  Xinguang Wang ,  Xiaoyong Zhang ,  Yubin Zhang ,  Chaoqun Zhang ,  Yongsheng Dong ,  Xingyuan Cui

发明人： Yupeng Wang ,  Hong Tang ,  Yuwang Miao ,  Tao Niu ,  Huaijun Ma ,  Peng Liu ,  Xinguang Wang ,  Xiaoyong Zhang ,  Yubin Zhang ,  Chaoqun Zhang ,  Yongsheng Dong ,  Xingyuan Cui

IPC分类号： F23D1/00 ,  F23C5/08 ,  F23C6/04

摘要： A method for decreasing nitrogen oxides of a pulverized coal boiler using burners of internal combustion type including during the operation of the boiler, ignition sources in the burners of internal combustion type mounted on side walls of the boiler are always in a working state, and igniting the pulverized coal in the burners in advance; decreasing secondary air amount in a primary combustion zone of the boiler so that the primary combustion zone is in a relatively strong reducing atmosphere and an oxygen-deficient condition for inhibiting generation of NOx is created; and supplying remaining air from an upper part of a furnace of the boiler in a form of over-fire air, so that a deep air staging is carried out in the total furnace. Thus, the NOx generation of combustion can be effectively controlled on the premise of not decreasing efficiency of the boiler.

公开(公告)号：US20110033807A1

公开(公告)日：2011-02-10

申请号：US12921658

申请日：2008-06-18

申请人： Yupeng Wang ,  Hong Tang ,  Yuwang Miao ,  Tao Niu ,  Huaijun Ma ,  Peng Liu ,  Xinguang Wang ,  Xiaoyong Zhang ,  Yubin Zhang ,  Chaoqun Zhang ,  Yongsheng Dong ,  Xingyuan Cui

发明人： Yupeng Wang ,  Hong Tang ,  Yuwang Miao ,  Tao Niu ,  Huaijun Ma ,  Peng Liu ,  Xinguang Wang ,  Xiaoyong Zhang ,  Yubin Zhang ,  Chaoqun Zhang ,  Yongsheng Dong ,  Xingyuan Cui

IPC分类号： F23M3/04

CPC分类号： F23D1/00 ,  F23C5/08 ,  F23C6/04 ,  F23C2201/101 ,  F23C2900/03005 ,  F23D2201/10 ,  F23D2201/20

摘要： A method for decreasing nitrogen oxides of a pulverized coal boiler using burners (2) of internal combustion type comprising: designing or changing all or part of burners of the pulverized coal boiler as internal combustion type burners (2), in which the ignition sources may be plasma generators (1) or ignition devices such as small oil guns etc., and the power thereof can be adjusted for controlling the ignition intensity in the burners (2). The burners (2) are interiorly divided into several stage combustion chambers (5) and are provided with pulverized coal concentrators (4) which do deep fuel staging in the burners (2). During the operation of the boiler, the ignition sources always keep in a working state, and the pulverized coal in the burners (2) is ignited stage by stage and is burnt in advance; decreasing the secondary air amount in the primary combustion zone (22) so that the primary combustion zone (22) is in a relatively strong reducing atmosphere and a high temperature and oxygen-deficient condition for inhibiting the generation of NOx is created; and supplying the remaining air from the upper of furnace of the boiler in the form of over-fire air, so that a deep air staging is carried out in the total furnace. Thus, the NOx generation of combustion can be effectively controlled on the premise of not decreasing the boiler efficiency.

摘要翻译： 一种使用内燃式燃烧器（2）减少粉煤锅炉的氮氧化物的方法，包括：设计或改变作为内燃式燃烧器（2）的粉煤锅炉的全部或部分燃烧器，其中点火源可以 等离子体发生器（1）或小型油枪等点火装置，并且其功率可以被调节以控制燃烧器（2）中的点火强度。 燃烧器（2）内部分为几级燃烧室（5），并设置有在燃烧器（2）中进行深度燃料分级的粉煤集中器（4）。 在锅炉运行期间，点火源始终处于工作状态，燃烧器（2）中的粉煤逐级点火，并预先燃烧; 减少主燃烧区（22）中的二次空气量，使得第一燃烧区（22）处于相对较强的还原气氛中，并且产生用于抑制NOx的产生的高温和缺氧条件; 并且以过火空气的形式从锅炉的上部供应剩余的空气，使得在整个炉中进行深空气分级。 因此，在不降低锅炉效率的前提下，能够有效地控制NOx的产生。