王斯民¹,叶树沛¹,肖娟¹,宋晨¹,张早校¹,文键²

• 1:西安交通大学 化学工程与技术学院，陕西 西安 710049
• 2:西安交通大学 能源与动力学院，陕西 西安 710049

摘要(Abstract)：

对进入气化炉前的水煤浆预热可以提高气化效率和降低氧耗。提出采用旋梯式螺旋折流板换热器预热水煤浆，水煤浆在换热器壳侧流动，导热油作为热流体在管侧流动。基于实验，研究了在换热器壳侧预热水煤浆的可行性、导热油定性温度和水煤浆流量对流动换热性能的影响，得到了壳侧传热和阻力系数关联式。实验结果表明，水煤浆在换热器壳侧流动换热是完全可行的；提高导热油定性温度可以提高水煤浆温升和总传热系数，同时降低壳侧压降；提高水煤浆流量可以提高总传热系数，但是壳侧压降增大。研究结果为开展水煤浆预热设备的研究提供了基础，对水煤浆预热的工况选择具有重要意义。

关键词(KeyWords)： 水煤浆预热;管壳式换热器;旋梯式螺旋折流板;流动;传热;工况选择

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（51676146）；中央高校基本科研业务费专项资金（xjj2018202）。

作者(Author): 王斯民¹,叶树沛¹,肖娟¹,宋晨¹,张早校¹,文键²

DOI: 10.3969/j.issn.1003-9015.2019.02.006

参考文献(References)：

• [1] MUSA S D, TANG Z, IBRAHIM A O, et al. China's energy status:A critical look at fossils and renewable options[J]. Renewable & Sustainable Energy Reviews, 2017, 81(2):2281-2290.
  [2] ZHANG X, WINCHESTER N, ZHANG X. The future of coal in China[J]. Energy Policy, 2017, 110(11):644-652.
  [3] PENG B H, GUO D N, QIAO H, et al. Bibliometric and visualized analysis of China's coal research 2000-2015[J]. Journal of Cleaner Production, 2018, 197(1):1177-1189.
  [4] CHANG S, ZHUO J, MENG S, et al. Clean coal technologies in China:current status and future perspectives[J]. Engineering, 2016, 2(4):447-459.
  [5] CHEN W, XU R. Clean coal technology development in China[J]. Energy Policy, 2010, 38(5):2123-2130.
  [6] 孙漾, 顾幸生. 水煤浆气化装置操作优化技术及其应用[J]. 化工学报, 2012, 63(9):2799-2804. SUN Y, GU X S. Coal water slurry gasification unit operation optimization technology and its application[J]. CIESC Journal, 2012, 63(9):2799-2804.
  [7] 黄桃花, 王亦飞, 焦延涛, 等. 高效能两段组合式煤气化过程热态试验[J]. 化工学报, 2010, 61(11):2924-2930. HUANG T H, WANG Y F, JIAO Y T, et al. Hot-state experiment of high-performance two stage combined coal gasification[J]. CIESC Journal, 2010, 61(11):2924-2930.
  [8] 夏德宏, 唐献红, 王世均. 水煤浆预热对燃烧的影响[J]. 冶金能源, 1992, 11(5):30-31. XIA D H, TANG X H, WANG S J. Influence of preheating on CWS combustion[J]. Energy for Metallurgical Industry, 1992, 11(5):30-31.
  [9] KATAYAMA Y, TAMAURA Y. Development of new green-fuel production technology by combination of fossil fuel and renewable energy[J]. Energy, 2005, 30(11):2179-2185.
  [10] NOVACK M, ROFFE G, MILLER G. Combustion of coal/water mixtures with thermal preconditioning[J]. Journal of Engineering for Gas Turbines and Power, 1987, 109(3):313-318.
  [11] AIUCHI K, MORIYAMA R, TAKEDA S, et al. A pre-heating vaporization technology of coal-water-slurry for the gasification process[J]. Fuel Processing Technology, 2007, 88(4):325-331.
  [12] WANG Q, ZENG M, MA T, et al. Recent development and application of several high-efficiency surface heat exchangers for energy conversion and utilization[J]. Applied Energy, 2014, 135(12):748-777.
  [13] 王斯民, 肖娟, 王家瑞, 等. 基于流固耦合理论的螺旋折流板换热器结构优化研究[J]. 高校化学工程学报, 2017, 31(3):539-546. WANG S M, XIAO J, WANG J R, et al. Structural optimization of shell-tube heat exchanger with helical baffles based on fluid-structure interaction[J]. Journal of Chemical Engineering of Chinese Universities, 2017, 31(3):539-546.
  [14] WEN J, YANG H Z, WANG S M, et al. Experimental investigation on performance comparison for shell-and-tube heat exchangers with different baffles[J]. International Journal of Heat & Mass Transfer, 2015, 84(5):990-997.
  [15] SALAHUDDIN U, BILAL M, EJAZ H. A review of the advancements made in helical baffles used in shell and tube heat exchangers[J]. International Communications in Heat & Mass Transfer, 2015, 67(10):104-108.
  [16] 文键, 杨辉著, 王斯民, 等. 旋梯式螺旋折流板换热器优化结构的数值模拟[J]. 西安交通大学学报, 2014, 48(11):8-14. WEN J, YANG H Z, WANG S M, et al. Numerical simulation for configuration optimization of heat exchanger with helical baffles[J]. Journal of Xi'an Jiaotong University, 2014, 48(11):8-14.
  [17] 文键, 杨辉著, 薛玉兰, 等. 旋梯式螺旋折流板换热器换热性能的实验研究[J]. 高校化学工程学报, 2015, 29(4):795-801. WEN J, YANG H Z, XUE Y L, et al. Experimental investigation on heat transfer performance of heat exchanger with ladder-type fold baffles[J]. Journal of Chemical Engineering of Chinese Universities, 2015, 29(4):795-801.
  [18] 孟令杰, 孔珑, 章名耀. 水煤浆管内流动的相似准数及其阻力特性[J]. 化工学报, 1995, 46(3):298-303. MENG L J, KONG L, ZHANG M Y. Similitude criterion and resistence characteristics of coal-water-slurry flowing in pipe[J]. Journal of Chemical Industry and Engineering (China), 1995, 46(3):298-303.
  [19] CHEN L Y, DUAN Y F, PU W H, et al. CFD simulation of coal-water slurry flowing in horizontal pipelines[J]. Korean Journal of Chemical Engineering, 2009, 26(4):1144-1154.
  [20] 陈良勇, 段钰锋, 刘猛, 等. 水平管入口段内水煤浆流动特性数值模拟[J]. 东南大学学报, 2010, 40(2):402-408. CHEN L Y, DUAN Y F, LIU M, et al. Numerical study of developing coal-water slurry flow in entrance region of horizontal pipe[J]. Journal of Southeast University, 2010, 40(2):402-408.
  [21] 任远, 陈良勇, 赵国华, 等. 水煤浆流经渐缩管段的局部阻力特性[J]. 动力工程学报, 2008, 28(4):651-656. REN Y, CHEN L Y, ZHAO G H, et al. Study on local energy losses of coal water slurry flowing in gradual shrinking tubes[J]. Chinese Journal of Power Engineering, 2008, 28(4):651-656.
  [22] 史美中, 王中铮. 热交换器原理与设计[M]. 南京:东南大学出版社, 2014. SHI M Z, WANG Z Z. Principle and design of heat exchangers[M]. Nanjing:Southeast University Press, 2014.
  [23] 钱颂文. 换热器设计手册[M]. 北京:化学工业出版社, 2002. QIAN S W. Heat exchanger design manual[M]. Beijing:Chemical Industry Press, 2002.
  [24] MARADIYA C, VADHER J, AGARWAL R. The Heat transfer enhancement techniques and their thermal performance factor[J]. Beni-Suef University Journal of Basic and Applied Sciences 2017, 7(1):1-21.
  [25] 林文珠, 曹嘉豪, 方晓明, 等. 管壳式换热器强化传热研究进展[J]. 化工进展, 2018, 37(4):1276-1286. LIN W Z, CAO J H, FANG X M, et al. Research progress of heat transfer enhancement of shell-and-tube heat exchanger[J]. Chemical Industry and Engineering Progress, 2018, 37(4):1276-1286.
  [26] 王振华, 邢芳. 流体在换热器管程侧或壳程侧的选择[J]. 广州化工, 2018, 46(7):108-110. WANG Z H, XING F. Allocation of stream in shell side or tube side[J]. Guangzhou Chemical Industry, 2018, 46(7):108-110.
  [27] WEN J, GU X, WANG M, et al. Numerical investigation on the multi-objective optimization of a shell-and-tube heat exchanger with helical baffles[J]. International Communications in Heat and Mass Transfer, 2017, 89(12):91-97.
  [28] YOU Y, FAN A, HUANG S, et al. Numerical modeling and experimental validation of heat transfer and flow resistance on the shell side of a shell-and-tube heat exchanger with flower baffles[J]. International Journal of Heat & Mass Transfer, 2012, 55(25-26):7561-7569.
  [29] WANG X, ZHENG N, LIU P, et al. Numerical investigation of shell side performance of a double shell side rod baffle heat exchanger[J]. International Journal of Heat & Mass Transfer, 2017, 108(3):2029-2039.
  [30] 杨世铭, 陶文铨. 传热学[M]. 第4版. 北京:高等教育出版社, 2006. YANG S M, TAO W Q. Heat transfer[M]. 4th ed. Beijing:Higher Education Press, 2006.
  [31] 谢东. 水煤浆流变特性及其检测技术研究[D]. 武汉:华中科技大学, 2010. XIE D. Research on rheological characteristics of coal water slurry and its measurement technologies[D]. Wuhan:Huazhong University of Science and Technology, 2010.
  [32] MOFFAT R J. Describing the uncertainties in experimental results[J]. Experimental Thermal & Fluid Science, 1988, 1(1):3-17.
  [33] AKBARI A, KOURAVAND S, CHEGINI G. Experimental analysis of a rotary heat exchanger for waste heat recovery from the exhaust gas of dryer[J]. Applied Thermal Engineering, 2018, 138(6):668-674.
  [34] ROH N S, SHIN D H, KIM D C, et al. Rheological behaviour of coal-water mixtures. 2. Effect of surfactants and temperature[J]. Fuel, 1995, 74(9):1313-1318.
  [35] CHURCHILL S W, BERNSTEIN M A. A correlating equation for forced convection from gases and liquids to circular cylinder in cross flow[J]. Journal of Heat Transfer, 1977, 99(2):300-306.
  [36] CENGEL Y A. Heat transfer:approach[M]. New York:McGraw-Hill, 2007.
  [37] ZHANG J F, LI B, HUANG W J, et al. Experimental performance comparison of shell-side heat transfer for shell-and-tube heat exchangers with middle-overlapped helical baffles and segmental baffles[J]. Chemical Engineering Science, 2009, 64(8):1643-1653.
  [38] ZHENG L, FURINSKY E. Comparison of shell, texaco, BGL and KRW gasifiers as part of IGCC plant computer simulations[J]. Energy Conversion & Management, 2005, 46(11):1767-1779.
  [39] 刘文, 尹晓晖, 李克海. 水煤浆气化制氢的气化压力选择[J]. 洁净煤技术, 2016, 22(5):89-94. LIU W, YIN X H, LI K H. Pressure selection of coal to hydrogen by coal water slurry gasification technology[J]. Clean Coal Technology, 2016, 22(5):89-94.