福原稔・石原田秀一・石外哲也・神﨑佑太・福村理仁・今林琢実・中尾光博 . 吹出し管を備えた吸込みノズルの空気輸送特性におよぼす吸込み流速および粒子径の影響 . 粉体工学会誌61 ( 2 ) 82 - 90 2024年2月2024 · 記述言語： 日本語 掲載種別： 研究論文（学術雑誌） 出版者・発行元： 一般社団法人 粉体工学会 <p>In the vacuum system of pneumatic conveying, the authors have proposed that a suction nozzle equipped with an injection pipe at the center would provide a highly dense, highly efficient method of transporting powder and particles. In this paper, we examined the effects of the insertion length of the suction nozzle and the injection pipe, by attaching the injection port on the outer part of the suction nozzle. The loading ratio for both cases (the injection ports positioned at the center and outer part) was not affected by the insertion length of the suction nozzle. However, the loading ratio incretion rate by the insertion length of the injection pipe was larger when the injection port was attached on the suction nozzle's outer part. From the perspective of the nozzle efficiency analysis, it was concluded that the outer injection port can be used adequately during the high flow rate ratio range.</p> Scopus CiNii Research 機関リポジトリURL
石原田 秀一, 福原 稔, 林田 洸利紀, 樋口 朋広, 高松 皆光, 宮部 浩介, 中尾 光博 . 吹出し管を備えた吸込みノズルの 空気輸送特性におよぼす吹出し口位置の影響 . 粉体工学会誌56 ( 5 ) 254 - 260 2019年 詳細を2019 · 記述言語： 日本語 出版者・発行元： 一般社団法人 粉体工学会 <p>In the vacuum system of pneumatic conveying, the authors have proposed that a suction nozzle equipped with an injection pipe at the center would provide a highly dense, highly efficient method of transporting powders and particles. In this paper, we examined the effect of injection port positions arranged at the inside and outside of the suction nozzle. For the first experimental condition, the effect of the injection port positions was observed with the injection velocity made equal. As a result, it was found that the loading ratio was hardly influenced by the injection port position. For the second condition, the effect of the injection velocity was clarified with the injection pipe attached to the outside of the suction nozzle. It was revealed by the visualization of particle behavior near the suction nozzle that the characteristics of the flow depend on the injection flow rate, not the injection velocity.</p> DOI： 10.4164/sptj.56.254 Scopus CiNii Research 機関リポジトリURL
