離心泵浦之流體分析研究

Fluid Analysis of Centrifugal Pump

許哲豪(Jhe-Hao Syu)

指導教授 ： 謝秋帆

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(2013年)

摘要

本文探討轉速與葉輪扇數以及針對喉管高度、離心室截面形狀對離心泵浦的影響，如何提升效率與使用壽命，泵浦的多樣性在於葉輪設計、流場型態的不同，使得葉輪型態變成流場順暢度的關鍵之一，目的是尋找進出口最有效率的泵浦，葉輪是屬於一種三維複雜的曲面，當流體經過離心室流場時，受到葉輪旋轉時所產生離心作用，加速液體中顆粒的沉降速度造成流場的不穩定性，會造成回流與液體洩漏這兩種情形造成能量的耗損，使得泵浦運轉的效率降低。本研究先使用Solid Works繪製零主件與組合件，再使用PumpLinxs切割網格後，設定參數來模擬葉輪的轉動情形，進而分析流場內部壓力情形與流率多寡，最後以圖表對照的方式分析各個葉輪與各種轉速對泵浦性能與效率的影響。

關鍵字

離心泵浦 ； 離心室 ； 流率

並列摘要

This article explores the impeller fan speed and the number and height for pipes, centrifugal chamber sectional shape of the centrifugal pump effect, how to enhance the efficiency and service life of the pump impeller design lies in the diversity, different flow patterns, making the impeller type state flow field smoothness becomes one of the key aim is to find the most efficient import and export pumps, impeller is a kind of three-dimensional complex surfaces, centrifugal chamber when the fluid flow through the field, generated by the impeller rotates centrifugal effect, accelerating the settling velocity of particles in the liquid caused by the instability of the flow field, will result in leakage of the liquid reflux resulting in both cases the energy consumption, so that the operation of the pump efficiency. This research draws zero using Solid Works main parts and assemblies, and then use PumpLinxs cutting grid after setting parameters to simulate the rotation of the impeller case, and then analyzes the internal pressure of the flow field and the flow rate of the amount of cases, the final analysis to chart the way control each with a variety of impeller speed on pump performance and efficiency effects.

並列關鍵字

Centrifugal pump ； leave the ventricle ； flow rate

參考文獻

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