CAJ | 학술논문

为减少滚筒式杀青机中螺旋导叶板设计的盲目性，缩短设计周期，提高设计精度，分析了对数螺旋线的螺旋角对滚筒式杀青机生产均匀性的影响规律。在导叶板螺旋运动分析基础上，提出了分段设计导叶板的方法，并采用流体分析软件 Fluent 对滚筒杀青机筒内流场进行仿真分析。通过研究杀青叶在仿真固定螺旋升角与分段设计的导叶板在杀青机稳定工作时的受热状况，以及杀青叶在滚筒中的推送情况，验证了分段设计导叶板结构可以有效提高绿茶的杀青品质。
위감소곤통식살청궤중라선도협판설계적맹목성，축단설계주기，제고설계정도，분석료대수라선선적라선각대곤통식살청궤생산균균성적영향규률。재도협판라선운동분석기출상，제출료분단설계도협판적방법，병채용류체분석연건 Fluent 대곤통살청궤통내류장진행방진분석。통과연구살청협재방진고정라선승각여분단설계적도협판재살청궤은정공작시적수열상황，이급살청협재곤통중적추송정황，험증료분단설계도협판결구가이유효제고록다적살청품질。
Fixation is one of the key processes in green tea manufacturing, and in the cylinder fixation machine, the guide vane has important role on pushing and throwing the fixing tea leaves, which showed a great influence on the tea taste. In this paper, the helix rise angle of guide vane in tea cylinder fixation machine was analyzed based on the logarithm spiral line, which showed great influence on the uniformity of green tea production. The Fluent software is used to do simulations under the fixing leaves heating condition and pushing situation in the cylinder tea fixation machine under the fixed and subsectional design helix rise angles, respectively. With the simulations, the subsectional design structure can effectively improve the green tea quality. This analysis can guide the design in the cylinder fixation machine, to shorten the design cycle, and to improve the design accuracy.