烤漆圓筒之熱傳與流場數值模擬分析

The Numerical Analyses of Heat Transfer and Flow Field for Auto Zipper Slider Backing Machine

沈哲賢(Zhe-Xian Shen)

指導教授 ： 許坤明

國立虎尾科技大學/工程學院/機械與電腦輔助工程系碩士班/碩士(2012年)

https://doi.org/10.6827/NFU.2012.00096

摘要

本研究目的為改良商用全自動拉頭滾筒烤漆機之加熱方式，使其能有更快速之加熱效率，及節省能源消耗之慮。由於電腦記憶體容量及處理速度大幅的提升，使得運用數值方法模擬流體力學，能有更快速且分析複雜問題之能力。
此烤漆機為結合工業級熱風產生器，其主要應用在快速自動化設備中加熱、熱收縮、烘乾、乾燥、各種熱熔、加速化學變化等。利用ANSYS CFX軟體對烤漆圓筒流場進行分析，並使用田口方法，求得此機台之影響控制因子。使用 直交表選定為實驗計畫，設定進出風孔位置與直徑等四項參數設計作為控制因子，應用直交表和信號雜音比求得最佳化參數，以調整過後因子做模擬分析，作為機台開發之參考。藉由田口方法找出最佳之組合與影響品質特性的因子，結果顯示，進風孔位置350mm，進風孔直徑60mm，出風孔位置220mm，出風孔直徑90mm提升效率最佳，可使烤漆機內部加熱流場得到最佳之參數設計。
本研究目標在於可將成果應用於實際使未來相關機台之發展能同時兼顧加熱效率、品質穩定、節省能源等實用理念，並依據模擬結果對目前的設計提供改良參考，使烤漆機能符合商用之需求。

關鍵字

田口方法 ； 熱傳 ； 數值分析 ； CFX ； 烤漆機

並列摘要

The purpose of this study was to improve the heating method of commercial Auto Zipper Slider Backing Machine to achieve greater heating efficiency and lower energy consumption. Significant increases in computer memory capacity and processing speed result in greater speed and ability to analyze complex questions when numerical methods are used to simulate hydromechanics.
An industry-level hot-air generator was integrated into this painting machine to facilitate the heating, heat shrinking, heat drying, drying, and hot melting functions and accelerate the chemical changes in rapid automated equipment. ANSYS CFX software was used to analyze the cylinder flow field of the paint machine, and the Taguchi method was employed to identify the influence controlling factor of this machine. An orthogonal array was used as the experimental design. Four parameters, consisting of the locations and diameters of the air inlet and outlet holes, were set as the controlling factors. The optimal parameters were obtained through the orthogonal array and the signal to noise ratio. The adjusted factors were used for simulated analysis and as a reference for machine development. The Taguchi method was employed to identify the optimal combination and the factors that affect quality characteristics. The results showed that the optimal efficiency enhancement was achieved when the air inlet hole was located at 350 mm, with a hole diameter of 60 mm, and the air outlet hole was located at 220 mm, with a hole diameter of 90 mm. Thus, optimal parameter design can be achieved for the interior heating flow field of the paint machine.
We hope that the results of this study can be employed to develop future machines that simultaneously consider utilization concepts, such as heating efficiency, quality robustness, and energy conservation. The simulation results provide a reference for improving the current design of paint machines, ensuring that these paint machines satisfy commercial needs.

並列關鍵字

Taguchi method ； Heat Transfer ； Numerical Analysis ； CFX ； Slider Backing Machine

參考文獻

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