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摘要: 分析了浆体的物理特性和输送装置特性, 应用非线性优化方法, 在已知泵的配置、输送浓度与管材的条件下, 以输送每立方米土所用费用单价的最小值作为目标函数, 以浆体的悬浮性和整个浆体输送系统的工作点等作为主要约束条件, 建立了浆体输送管道的管径优化数学模型。费用单价为年费用与年输送量的比率, 年费用着重考虑了与管道直径密切相关的管道材料年折算费用和年泵站运行费用。数值计算得到的最优管径为0.8957m, 管内流量为3.134m3/s, 管道的最终厚度为2.6×10-3m。与多方案优选法管径计算结果0.9m相比, 所述方法的计算结果准确, 计算量小。Abstract: In terms of nonlinear optimization method, this paper presented a mathematical model with respect to the diameter optimal design for slurry transportation pipeline. In the condition that pumps configuration, slurry concentration and pipeline material were known, the minimum of unit price per cubic meter of transporting earth was taken as objective function. In the model, unit price was equal to the ratio of annual expenditure to annual transport quantity. For the annual expenditure, the annual cost of pipeline material and the annual operation cost of pumps were considered, which had a close relation to the pipe diameter. Based on detailed analysis of the physical property of slurry and the characteristic curve of transport equipment, the suspension property of slurry and the operating point of whole transportation system were taken as mainly constraint conditions. The numerical-computational results show that the optimal diameter and the flow of the pipe and the final value of the pipe thickness equal 0.895 7 m, 3.134 m3/s and (2.6×) 10-3 m respectively, compared with the computational diameter 0.9 m of multi-scheme optimization method, the diameter is more accurate.
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[1] 冯光乐, 凌天清, 许志鸿. 公路边坡支护方案优化设计[J]. 交通运输工程学报, 2002, 2(1): 43-47. http://transport.chd.edu.cn/article/id/200201009Feng Guang-le, Ling Tian-qing, Xu Zhi-hong. Optimizing design method of highway slope[J]. Journal of Traffic and Transportation Engineering, 2002, 2(1): 43-47. (in Chinese) http://transport.chd.edu.cn/article/id/200201009 [2] 日本浆体输送研究会. 浆体与密封容器输送技术手册[M]. 北京: 冶金工业出版社, 1990. [3] 关醒凡. 现代泵技术手册[M]. 北京: 宇航出版社, 1995. [4] Matousek V. The pipeline transport of different sand frictions in dense slurries[J]. Dredging, Key Technologies for Global Property, 2002, 94(3): 415-424. [5] 费祥俊. 浆体与粒状物料输送水力学[M]. 北京: 清华大学出版社, 1994. [6] Heywood N, Alderman N J. Developments in slurry pipeline technologies[J]. Chemical Engineering Progress, 2003, 12(4): 36-43. [7] Wilson K C, Clifft R, Sellgren A. Operating points for pipelines carrying concentrated heterogeneous slurries[J]. Powder Technology, 2002, 123(1): 19-24. [8] Sato H, Yamaguchi S, Nakazawa A. The effect of flow pattern of slurry flow on pressure loss in horizontal pipes[A]. Proceeding of the ASME/JSME Joint Fluids Engineering Conference [C]. American Society of Mechanical Engineers, 2003. [9] 费祥俊. 浆体的物理特性与管道输送流速[J]. 管道技术与设备, 2000, 12(1): 1-8. https://www.cnki.com.cn/Article/CJFDTOTAL-GDGS200001000.htmFei Xiang-jun. Physical property of slurry and its velocity of pipeline transportation[J]. Pipeline Technique and Equipment, 2000, 12(1): 1-8. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GDGS200001000.htm -
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