公开(公告)号：EP3435068A1

公开(公告)日：2019-01-30

申请号：EP17769886.7

申请日：2017-03-06

申请人： Yanmar Co., Ltd. ,  Fuji Electric Co., Ltd.

发明人： FUKUI Yoshinori ,  KOBAYASHI Ryota ,  YOKOYAMA Tetsuya ,  INOUE Tsuyoshi ,  ODA Yusuke ,  OKADA Michiyasu ,  AKAO Kozo ,  HIGASHI Ryouichi

IPC分类号： G01N21/03 ,  G01N21/15 ,  G01N21/85 ,  G01N21/3504

摘要： A gas concentration measuring device 1 related to the present invention includes a light emitter 3 and a light receiver 4 which are disposed so as to be opposed to each other with a hollow tube-like measurement pipe 2 interposed therebetween and the device 1 is configured to measure concentration of target gas passing through the measurement pipe 2 using light applied from the light emitter 3, transmitted through an inside of the measurement pipe 2, and received by the light receiver 4. Purge gas guide pipes 11, 13 through which purge gas is introduced into optical systems of the light emitter 3 and the light receiver 4 are connected to a side wall of the measurement pipe 2. The measurement pipe 2 includes a gas entrance portion 21 having a tapered shape widening from a gas supply port toward a downstream side.

公开(公告)号：EP3217163A1

公开(公告)日：2017-09-13

申请号：EP15901874.6

申请日：2015-09-02

申请人： Fuji Electric Co., Ltd.

发明人： HIGASHI, Ryoichi ,  YAMAMOTO Tsutomu ,  AKAO Kozo ,  OKADA Michiyasu

IPC分类号： G01N21/59

CPC分类号： G01N21/59 ,  G01N21/53 ,  G01N21/532 ,  G01N21/534 ,  G01N2021/536

摘要： Provided is an analyzing apparatus that irradiates a flue with laser light and analyzes a component contained in a gas that passes through the flue, including an optical unit that has an emission function and a light receiving function for the laser light; and a connecting tube that has one end optically connected to the optical unit and passes the laser light. The connecting tube includes a through-hole provided in a tube wall in an insertion end region on an opposite side of the optical unit; and an open region that is arranged opposite the through-hole, is not provided with the tube wall, and has a greater area than the through-hole.

摘要翻译： 本发明提供一种分析装置，其利用激光对烟道进行照射，对通过烟道的气体中含有的成分进行分析，该分析装置包括具有发射功能和受光功能的光学单元， 以及连接管，其一端与光学单元光学连接并通过激光。 连接管包括设置在光学单元的相对侧上的插入端区域中的管壁中的通孔; 与该贯通孔相对配置的开放区域不具有该管壁，且具有比该贯通孔大的面积。