【摘要】：為解決小倍線充填管道局部壓力過大、管路磨損嚴(yán)重等問題,本文提出用螺旋管增阻調(diào)壓的結(jié)構(gòu)與實施方案.結(jié)合計算流體力學(xué)(computational fluid dynamics,CFD)對增阻調(diào)壓結(jié)構(gòu)與實施方案進(jìn)行模擬分析,基于模擬計算的結(jié)果提出增加螺旋管道增阻調(diào)壓結(jié)構(gòu)后計算充填倍線的修正公式.研究結(jié)果表明,在2 m·s-1的模擬流速下,螺旋管增阻調(diào)壓結(jié)構(gòu)所產(chǎn)生的阻力可達(dá)同等高度直管的10.1~16.8倍,在保證料漿連續(xù)輸送的前提下可以有效的起到增阻降壓的作用.結(jié)合數(shù)值模擬的充填倍線修正公式能夠較為完善地計算增阻降壓后的有效充填倍線.
[Abstract]:In order to solve the problems of high local pressure and serious wear of small line filling pipeline, this paper puts forward the structure and implementation scheme of increasing resistance and adjusting pressure with spiral pipe. Combined with (computational fluid dynamics,CFD (Computational fluid Dynamics), a modified formula for calculating the filling double line after increasing the drag and adjusting pressure structure of spiral pipe is proposed based on the simulation and analysis of the structure and its implementation scheme. The results show that under the simulated flow rate of 2 m 路s ~ (- 1), the drag of the spiral tube can be increased to 10.1 ~ 16.8 times of that of the straight tube with the same height. In the premise of ensuring continuous delivery of slurry, it can play an effective role in increasing resistance and reducing pressure. The modified formula of filling double line combined with numerical simulation can be used to calculate the effective filling double line after increasing drag and reducing pressure.
【作者單位】： 北京科技大學(xué)土木與環(huán)境工程學(xué)院;北京科技大學(xué)金屬礦山高效開采與安全教育部重點(diǎn)實驗室;北京聯(lián)合大學(xué)北京市信息服務(wù)工程重點(diǎn)實驗室;
【分類號】：TD853.34

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