沉降性浆体倾斜管道水力坡度的研究
|
摘要
目前对沉降性浆体水平管道的研究比较多，而对于倾斜管道的理论研究却很少。尤其是各浓度下，倾斜管道中的水力坡度研究几近空白。可实际生产中倾斜管道是广泛存在的，特别是在长距离管道输送中，故研究其水力坡度是有现实意义的。本文在系统总结现有专家学者的研究成果基础之上，通过分析向上倾斜管道输送中清水与固体颗粒的动量传递过程，从动量守恒的角度建立了清水速度、固体颗粒速度和浆体流速之间的关系，进而推导出了向上倾斜管道输送的水力坡度计算公式。理论计算结果与已有的试验数据较为符合，故本文的研究成果可为浆体管道输送工程设计中最优方案的确定提供一定的依据。
At present, much research on the settling slurry horizontal pipeline transportation has been done, but theory research on the inclined pipeline transportation is much less. Especially the study on the hydraulic gradient in the inclined pipes is nearly blank. Slope pipes are used in the actual production widely, especially in the long-distance pipeline transportation, so it has the practical value to study their hydraulic gradient. On the basis of published research of experts and scholars, relations among the velocity of water, that of solid particles and that of settling slurry have been established by the analysis of momentum transmission between water and solid particles in the upward inclined pipeline. Then the calculation formulae for the upward-inclined-pipe hydraulic gradient are derived. The calculation results are highly in accord with the present experimental data. Therefore, the results of this paper can provide certain basis for the determination of the most optimal scheme in the slurry pipeline
transportation engineering.
At present, much research on the settling slurry horizontal pipeline transportation has been done, but theory research on the inclined pipeline transportation is much less. Especially the study on the hydraulic gradient in the inclined pipes is nearly blank. Slope pipes are used in the actual production widely, especially in the long-distance pipeline transportation, so it has the practical value to study their hydraulic gradient. On the basis of published research of experts and scholars, relations among the velocity of water, that of solid particles and that of settling slurry have been established by the analysis of momentum transmission between water and solid particles in the upward inclined pipeline. Then the calculation formulae for the upward-inclined-pipe hydraulic gradient are derived. The calculation results are highly in accord with the present experimental data. Therefore, the results of this paper can provide certain basis for the determination of the most optimal scheme in the slurry pipeline
transportation engineering.
引文
[1] 许德权，发展我国的煤浆管道势在必行，水力采煤与管道运输，1992，6
[2] E．J．瓦斯普，固体物料的浆体管道输送，水利电力出版社，1984
[3] 丁宏达，90年代中国将体管道输送的新发展，第二届中日浆体输送技术交流会论文集，1998
[4] 崔增祁、范浙，发展中国输煤管道的研究，第二届中日浆体输送技术交流会论文集，1998
[5] Durand, R. Basic Relationships of the Transportation of Solids in Pipes Experimental Research. Proc. Intern. Assoc. Hydr. Res.,5th Congr. Minneapolis,1953
[6] Durand, R. and E. Condolios. Study of the Transport of Solids in Pipes. Societe Hydrotechnique de France. Deuxieme Journees d'Hydraulique,1952
[7] Newitt,D.M. etc, Hydraulic Conveying of Solids in Horizontal Pipes. Trans. Instn chem..Engrs,1995.
[8] Newitt, D.M. etc Hydraulic Conveying of Solids in Vertical Pipes.Trans. Inst. Chem. Engrs. Vol 39,1961
[9] Roco,M.C. and Shook,C.A. A Model for Turbulent Slurry Flow, C.A.J. Pipelines,1984
[10] Carstens, M.R A Theory for Heterogeneous Flow of Solids in Pipes. Journal of the Hydraulic Division, Proceedings of the ACSE,1969
[11] Soo, S.L. Correlation of States of Hydraulic Transport of Solid in Pipes, Proc.1st Int Conf. On Hydraulic Transport of Solid in Pipes,1970
[12] 戴纪岚，管道中具有推移层的两相流动，清华大学博士论文，1995
[13] 许振良，沉降性浆体管道输送水力坡度的研究，第二界中日浆体输送技术交流会论文集，1998，10
[14] 许振良，水平管道内沉降性浆体速度分布的研究，第二界中日浆体输送技术交流会论文集，1998，10
[15] 费祥俊，浆体与粒状物料输送水力学，清华大学出版社，1994
[16] Durand, R. Basic Relationships of the Transportation of Solids in Pipes Experimental Research, Proc. Intern. Assoc. Hydr.,5th Conger. Minneapolis
[17] 王绍周，粒状物料的管道输送，海洋出版社，1998
[18] 佐藤 博等，Wasp 计算方法检讨，日本矿业会志，1998
[19] 佐藤 博，输送，秋田活版印刷株式会社，平成7年
[20] Kao, O.T. (1979) and Huang, L.Y.,Critical Slope for Slurry Pipeline Transporting Coal and Other Solid Particles, HydroTransport 6, BHRA
[21] Kawashia, T. (1970) and Noda, K.,Hydraulic Transport of Solids in an Inclined Pipe-Theoretical and Experimental Studies on Pressure Loss, Hydrotransport 1, BHRA
[22] Thomas, D.G.,Transport Characteristics of Suspensions: PartⅢ.A note on the Viscosity of Newtonian Suspensions of Uniform Spherical Particle J. Colloid Sci.,1965
[23] 森 芳朗 乙竹 直．化学工学．20(9)，1956
[24] 钱宁稚，万兆惠，泥沙运动学，科学出版社，1983
[25] Roscoe, R.,The Velocity of Suspensions of Rigid Sphere. Bri. J. Applied Phys.,1952
[26] 周士昌，非均匀固体颗粒两相流的阻力计算公式，东北大学科技情报资料科，1964，5
[27] 彭续成，固体管道输送的理论和应用，中南工业大学，1993
[28] Rose, H.E. and Duckworth, R.A. Transport of Solid Particles in Liquid and Gases, The ENGINEER 21 March 1969
[29] 佐藤博，大冢一雄，崔玉顺．管内浓度速度算定式，资源·素材学会志，1989
[30] 佐藤博，许振良，崔玉顺．沉降性水平管道内流速度分布近似解法，资源·素材学会志，1993
[31] 佐藤博，输送工学，昭和63年9月
[32] Diniz and Coiado, Two-phase(solid-liquid)flow in inclined pipes, BHR Group 1999 Hydrotransport 14
[33] 黄照林，倾斜管道中浆体流动特性的试验研究，中国矿业学院硕士学位论文，1985
[34] Gogus, Kokpinar, An empirical expression for the determination of mean critical flow velocity in slurry transporting pipeline systems, BHR Group 1999 Hydrotransport 14
[35] 李培芳，水煤浆管道管道输送特性的研究，水力采煤与管道输送，3(58)1996
[36] 刘可任，充填理论基础，冶金工业出版社，1982．
[37] 金文斌等，大粒径物料垂直输送水力参数的研究，第二届中日浆体输送技术交流会论文集，1998
[38] 矿水泉，输煤管道的敷设角试验，内部参考
[39] 吴应湘，郑之初，水平与倾斜管道中多相流动的数值模拟，计算力学学报，1997，4
[40] 王绍周，长距离管道输送中浆体的悬浮性、稳定性、和均质性，水力采煤与管道输送，1994，6
[41] K N 阿德希卡里(印度)，固体管道水力运输—煤炭运输的新前景，水力采煤与管道运输，1993，3
[2] E．J．瓦斯普，固体物料的浆体管道输送，水利电力出版社，1984
[3] 丁宏达，90年代中国将体管道输送的新发展，第二届中日浆体输送技术交流会论文集，1998
[4] 崔增祁、范浙，发展中国输煤管道的研究，第二届中日浆体输送技术交流会论文集，1998
[5] Durand, R. Basic Relationships of the Transportation of Solids in Pipes Experimental Research. Proc. Intern. Assoc. Hydr. Res.,5th Congr. Minneapolis,1953
[6] Durand, R. and E. Condolios. Study of the Transport of Solids in Pipes. Societe Hydrotechnique de France. Deuxieme Journees d'Hydraulique,1952
[7] Newitt,D.M. etc, Hydraulic Conveying of Solids in Horizontal Pipes. Trans. Instn chem..Engrs,1995.
[8] Newitt, D.M. etc Hydraulic Conveying of Solids in Vertical Pipes.Trans. Inst. Chem. Engrs. Vol 39,1961
[9] Roco,M.C. and Shook,C.A. A Model for Turbulent Slurry Flow, C.A.J. Pipelines,1984
[10] Carstens, M.R A Theory for Heterogeneous Flow of Solids in Pipes. Journal of the Hydraulic Division, Proceedings of the ACSE,1969
[11] Soo, S.L. Correlation of States of Hydraulic Transport of Solid in Pipes, Proc.1st Int Conf. On Hydraulic Transport of Solid in Pipes,1970
[12] 戴纪岚，管道中具有推移层的两相流动，清华大学博士论文，1995
[13] 许振良，沉降性浆体管道输送水力坡度的研究，第二界中日浆体输送技术交流会论文集，1998，10
[14] 许振良，水平管道内沉降性浆体速度分布的研究，第二界中日浆体输送技术交流会论文集，1998，10
[15] 费祥俊，浆体与粒状物料输送水力学，清华大学出版社，1994
[16] Durand, R. Basic Relationships of the Transportation of Solids in Pipes Experimental Research, Proc. Intern. Assoc. Hydr.,5th Conger. Minneapolis
[17] 王绍周，粒状物料的管道输送，海洋出版社，1998
[18] 佐藤 博等，Wasp 计算方法检讨，日本矿业会志，1998
[19] 佐藤 博，输送，秋田活版印刷株式会社，平成7年
[20] Kao, O.T. (1979) and Huang, L.Y.,Critical Slope for Slurry Pipeline Transporting Coal and Other Solid Particles, HydroTransport 6, BHRA
[21] Kawashia, T. (1970) and Noda, K.,Hydraulic Transport of Solids in an Inclined Pipe-Theoretical and Experimental Studies on Pressure Loss, Hydrotransport 1, BHRA
[22] Thomas, D.G.,Transport Characteristics of Suspensions: PartⅢ.A note on the Viscosity of Newtonian Suspensions of Uniform Spherical Particle J. Colloid Sci.,1965
[23] 森 芳朗 乙竹 直．化学工学．20(9)，1956
[24] 钱宁稚，万兆惠，泥沙运动学，科学出版社，1983
[25] Roscoe, R.,The Velocity of Suspensions of Rigid Sphere. Bri. J. Applied Phys.,1952
[26] 周士昌，非均匀固体颗粒两相流的阻力计算公式，东北大学科技情报资料科，1964，5
[27] 彭续成，固体管道输送的理论和应用，中南工业大学，1993
[28] Rose, H.E. and Duckworth, R.A. Transport of Solid Particles in Liquid and Gases, The ENGINEER 21 March 1969
[29] 佐藤博，大冢一雄，崔玉顺．管内浓度速度算定式，资源·素材学会志，1989
[30] 佐藤博，许振良，崔玉顺．沉降性水平管道内流速度分布近似解法，资源·素材学会志，1993
[31] 佐藤博，输送工学，昭和63年9月
[32] Diniz and Coiado, Two-phase(solid-liquid)flow in inclined pipes, BHR Group 1999 Hydrotransport 14
[33] 黄照林，倾斜管道中浆体流动特性的试验研究，中国矿业学院硕士学位论文，1985
[34] Gogus, Kokpinar, An empirical expression for the determination of mean critical flow velocity in slurry transporting pipeline systems, BHR Group 1999 Hydrotransport 14
[35] 李培芳，水煤浆管道管道输送特性的研究，水力采煤与管道输送，3(58)1996
[36] 刘可任，充填理论基础，冶金工业出版社，1982．
[37] 金文斌等，大粒径物料垂直输送水力参数的研究，第二届中日浆体输送技术交流会论文集，1998
[38] 矿水泉，输煤管道的敷设角试验，内部参考
[39] 吴应湘，郑之初，水平与倾斜管道中多相流动的数值模拟，计算力学学报，1997，4
[40] 王绍周，长距离管道输送中浆体的悬浮性、稳定性、和均质性，水力采煤与管道输送，1994，6
[41] K N 阿德希卡里(印度)，固体管道水力运输—煤炭运输的新前景，水力采煤与管道运输，1993，3