公开(公告)号：US5067419A

公开(公告)日：1991-11-26

申请号：US456561

申请日：1989-12-26

申请人： Hironobu Kobayashi ,  Shigeru Azuhata ,  Kiyoshi Narato ,  Kenichi Sohma ,  Yasuo Yoshii ,  Norio Arashi ,  Shigekazu Nishimoto ,  Isao Koyama ,  Tooru Inata ,  Hideo Kikuchi ,  Tadayoshi Murakami ,  Masayuki Taniguchi ,  Hiroshi Miyadera ,  Fumio Koda ,  Tatsuzou Enomoto ,  Kenshi Kobayashi

发明人： Hironobu Kobayashi ,  Shigeru Azuhata ,  Kiyoshi Narato ,  Kenichi Sohma ,  Yasuo Yoshii ,  Norio Arashi ,  Shigekazu Nishimoto ,  Isao Koyama ,  Tooru Inata ,  Hideo Kikuchi ,  Tadayoshi Murakami ,  Masayuki Taniguchi ,  Hiroshi Miyadera ,  Fumio Koda ,  Tatsuzou Enomoto ,  Kenshi Kobayashi

IPC分类号： F22B21/34 ,  F22B31/00 ,  F23D23/00

CPC分类号： F23D23/00 ,  F22B21/346 ,  F22B31/00

摘要： A low-NOx boiler comprises a burner for burning gaseous fuel, heat transfer pipes heating water by combustion heat of the burner to generate steam and having a passage through which water flows, a steam drum communicating with the heat transfer pipe and accumulating the steam from the heat transfer pipe, and an exhaust gas duct located in the furnace to exhaust combustion gas generated by combustion of gaseous fuel outside of the boiler. The boiler further comprises unburnt gas burner in the exhaust gas duct for burning unburnt content in the combustion gas flowing in the duct. The unburnt gas burner includes a nozzle for injecting premixture flow of fuel and combustion air and flame holding plate located near the downstream side of the outlet of the nozzle to interrupt the premixture flow to form a circulating flow on downstream side of the flame holding plate. As gaseous fuel and air are mixed in advance and a flame is formed, the flame length can be shortened. Furthermore, the flame holding plate enables to reduce NOx generated. Unburnt gas burner provided in the exhaust gas duct makes it possible to notably reduce the concentration of NOx discharged to the outside of the system.

公开(公告)号：US08009286B2

公开(公告)日：2011-08-30

申请号：US12442879

申请日：2007-12-04

申请人： Hisashi Isozaki ,  Takehiro Takase ,  Takashi Kakinuma ,  Hiroyuki Maekawa ,  Fumio Koda ,  Michihiro Yamazaki

发明人： Hisashi Isozaki ,  Takehiro Takase ,  Takashi Kakinuma ,  Hiroyuki Maekawa ,  Fumio Koda ,  Michihiro Yamazaki

IPC分类号： G01N21/00

CPC分类号： G01N21/9501 ,  G01N21/47 ,  G01N21/55 ,  G01N21/8422 ,  G01N21/94 ,  G01N21/9505 ,  G01N2201/06113

摘要： A light source section outputs optical flux having two types of wavelength, which are a short wavelength and a long wavelength, while the intensity is made variable. The output from the first light intensity detecting section in irradiating the optical flux having a short wavelength is compared with the output from the first light intensity detecting section in irradiating the optical flux having a long wavelength. A disappearance level near a point where the detected signal from the internal subject disappears is calculated. The first intensity of optical flux having a long wavelength is set to level higher than the disappearance level. Based on the output from the first light intensity detecting section obtained by the optical flux having a long wavelength of the first intensity, a subject inside the body to be detected is measured.

摘要翻译： 光源部分输出具有短波长和长波长的两种波长的光通量，同时强度可变。 在照射长波长的光通量时，将照射具有短波长的光束的来自第一光强度检测部的输出与来自第一光强检测部的输出进行比较。 计算来自内部对象的检测信号消失的点附近的消失水平。 具有长波长的光通量的第一强度被设置为高于消失水平的水平。 基于通过具有第一强度的长波长的光通量获得的来自第一光强检测部的输出，测量被检体内的被检体。

公开(公告)号：US20100007872A1

公开(公告)日：2010-01-14

申请号：US12442879

申请日：2007-12-04

申请人： Hisashi Isozaki ,  Takehiro Takase ,  Takashi Kakinuma ,  Hiroyuki Maekawa ,  Fumio Koda ,  Michihiro Yamazaki

发明人： Hisashi Isozaki ,  Takehiro Takase ,  Takashi Kakinuma ,  Hiroyuki Maekawa ,  Fumio Koda ,  Michihiro Yamazaki

IPC分类号： G01N21/956 ,  H01L21/66 ,  G01J3/00 ,  G01N21/00

CPC分类号： G01N21/9501 ,  G01N21/47 ,  G01N21/55 ,  G01N21/8422 ,  G01N21/94 ,  G01N21/9505 ,  G01N2201/06113

摘要： A light source section outputs optical flux having two types of wavelength, which are a short wavelength and a long wavelength, while the intensity is made variable. The optical flux is made incident to a detected surface of a body to be detected at a predetermined incident angle simultaneously or alternatively. Based on a type of optical flux outputted from the light source section and an output from a first light intensity detecting section, at least the intensity of the optical flux having a long wavelength outputted from the light source section is adjusted. The output from the first light intensity detecting section in irradiating the optical flux having a short wavelength is compared with the output from the first light intensity detecting section in irradiating the optical flux having a long wavelength. A signal that appears only in the output from the first light intensity detecting section in irradiating the optical flux having a long wavelength is identified as a detected signal from an internal subject. The intensity of optical flux having a long wavelength is adjusted. A disappearance level near a point where the detected signal from the internal subject disappears is calculated. The first intensity of optical flux having a long wavelength is set to level higher than the disappearance level. Based on the output from the first light intensity detecting section obtained by the optical flux having a long wavelength of the first intensity, a subject inside the body to be detected is measured.

摘要翻译： 光源部分输出具有短波长和长波长的两种波长的光通量，同时强度可变。 光通量以预定的入射角同时或交替地入射到要检测的身体的检测表面。 基于从光源部输出的光通量和第一光强检测部的输出，至少从光源部输出的具有长波长的光通量的强度被调整。 在照射长波长的光通量时，将照射具有短波长的光束的来自第一光强度检测部的输出与来自第一光强检测部的输出进行比较。 作为来自内部被检体的检测信号，识别仅在来自第一光强检测部的输出中出现的长波长的光束的信号。 调整长波长的光通量的强度。 计算来自内部对象的检测信号消失的点附近的消失水平。 具有长波长的光通量的第一强度被设置为高于消失水平的水平。 基于通过具有第一强度的长波长的光通量获得的来自第一光强检测部的输出，测量被检体内的被检体。

公开(公告)号：US5950574A

公开(公告)日：1999-09-14

申请号：US125283

申请日：1998-08-14

申请人： Junichiro Matsuda ,  Fumio Koda ,  Tetsuo Mimura ,  Takayo Kawase ,  Shigeki Morita

发明人： Junichiro Matsuda ,  Fumio Koda ,  Tetsuo Mimura ,  Takayo Kawase ,  Shigeki Morita

IPC分类号： F22B21/34 ,  F22G1/02 ,  F22G7/14 ,  F22G5/04

CPC分类号： F22G7/14 ,  F22B21/343

摘要： Only suspension type superheaters (52) and (53) are disposed in an outlet of a furnace. These superheaters have heat transfer areas which are so dimensioned that an exhaust gas temperature at downstream of the superheaters is 1000.degree. C. to 1100.degree. C. when the boiler is under a maximum load. An exhaust gas passage downstream of the superheaters (52) and (53) is divided into sub passages along a flow of an exhaust gas, and a damper is disposed in an outlet of each of the sub passages for adjusting a flow rate of the exhaust gas flowing through the respective sub passages. A traverse type reheater (41) is disposed in the sub passage. Since a difference between a temperature (1000.degree. C. to 1100.degree. C.) of the exhaust gas flowing around the reheater (41) and a temperature of steam flowing through the reheater (41) is large, heat exchange can be performed with a high efficiency even through a small heat transfer area. Accordingly, this configuration makes it possible to prevent a heat transfer area of the reheater (41), or overall dimensions of a boiler from being increased.

摘要翻译： PCT No.PCT / JP97 / 04625 Sec。 371日期：1998年8月14日 102（e）日期1998年8月14日PCT 1997年12月16日PCT PCT。 WO98 / 27385 PCT公开 日期1998年6月25日只有悬浮式过热器（52）和（53）设置在炉子的出口处。 这些过热器具有传热区域，其尺寸使得当锅炉处于最大负载时，过热器下游的废气温度为1000℃至1100℃。 过热器（52）和（53）下游的废气通道沿着排气流被分成次通道，并且每个子通道的出口设置阻尼器，用于调节排气的流量 气体流过相应的子通道。 横向式再加热器（41）设置在副通道中。 由于在再热器（41）周围流动的废气的温度（1000℃〜1100℃）与流过再热器（41）的蒸汽的温度之间的差异大，所以可以进行热交换 高效率即使通过小的传热区域。 因此，这种构造使得可以防止再热器（41）的传热面积或锅炉的整体尺寸增加。

公开(公告)号：US4741279A

公开(公告)日：1988-05-03

申请号：US1166

申请日：1987-01-07

申请人： Shigeru Azuhata ,  Kazutoshi Higashiyama ,  Kiyoshi Narato ,  Hironobu Kobayashi ,  Norio Arashi ,  Tooru Inada ,  Kenichi Sohma ,  Keizou Ohtsuka ,  Yoshitaka Takahashi ,  Fumio Koda ,  Tadahisa Masai ,  Masakiyo Tanikawa ,  Kei Kawano

发明人： Shigeru Azuhata ,  Kazutoshi Higashiyama ,  Kiyoshi Narato ,  Hironobu Kobayashi ,  Norio Arashi ,  Tooru Inada ,  Kenichi Sohma ,  Keizou Ohtsuka ,  Yoshitaka Takahashi ,  Fumio Koda ,  Tadahisa Masai ,  Masakiyo Tanikawa ,  Kei Kawano

IPC分类号： F23C7/00 ,  F23D1/00

CPC分类号： F23D1/005 ,  F23C7/004 ,  F23C2202/40

摘要： A method of combusting a coal-water mixture fuel. The mixture is atomized into a conically-shaped primary pre-combustion chamber. Primary air is supplied, at a rate smaller than that required for complete burning of the mixture and in the form of a swirl about the axis of the jet of the atomized mixture, from the peripheral portion of the primary pre-combustion chamber into a secondary pre-combustion chamber connected to said primary pre-combustion chamber, thus forming a region of low pressure around the jet of the mixture. The region of low pressure serves to induce the atmosphere gas from the secondary pre-combustion chamber of higher temperature back into the primary pre-combustion chamber of a lower temperature, so that the water content of the mixture is evaporated and the mixture is ignited by the heat of the hot atmosphere gas. Then, the mixture is burnt in the secondary pre-combustion chamber in the presence of the remainder portion of the primary air, at a comparatively small air-to-ratio, so that a region of a reducing atmosphere is formed to suppress the generation of NOx. Then, secondary air is supplied, in the form of a swirl about the axis of the jet of the mixture and at a rate sufficient to completely burn the mixture, into the furnace connected to the secondary pre-combustion chamber, thus completely combusting the coal-water mixture.

摘要翻译： 一种燃烧煤 - 水混合燃料的方法。 将混合物雾化成锥形初级预燃烧室。 一次空气以比完全燃烧混合物所需的速度小并且以围绕雾化混合物的射流的轴线的漩涡的形式从初级预燃烧室的周边部分供给到次级 预燃烧室连接到所述初级预燃烧室，从而在混合物的射流周围形成低压区域。 低压区域用于将来自较高温度的次级预燃烧室的气氛气体引回到较低温度的初级预燃烧室中，使得混合物的水分被蒸发并且混合物被点燃 热气氛气体的热量。 然后，在空气比比较小的情况下，在一次空气的剩余部分的存在下，在二次预燃烧室中燃烧混合物，从而形成还原气氛的区域， NOx。 然后，将二次空气以围绕混合物的射流轴线的涡旋的形式以足以完全燃烧混合物的速率供应到连接到二次预燃烧室的炉中，从而完全燃烧煤 - 水混合物。