气-固循环流化床螺旋板式换热器的传热性能与压降

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摘要设计并搭建了气-固循环流化床螺旋板式换热装置,研究了空气流量(80~125 m³·h^-1)、颗粒加入量(0.5%~2.0%)和颗粒类型等操作参数对以恒温水作为热流体、空气作为冷流体、3种固体颗粒作为固相工作介质的循环流化床螺旋板式换热器传热性能和压降的影响。实验的结果显示,添加颗粒可以明显改善螺旋板式换热器的传热性能,但同时也会增大压降。在实验考察的操作参数范围内,强化传热效果最佳时的传热增强因子可以达到29.28%,此时系统内添加的颗粒为聚甲醛颗粒,空气流量为125 m³·h^-1,颗粒加入量为2.0%,但相应的压降比率也达到了20.86%。绘制了传热增强因子和压降比率的三维图以及综合影响雷达图,可指导工业应用。

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	姜峰
	孙兴一
	齐国鹏
	李修伦

关键词：气-固循环流化床传热性能的强化压降螺旋板式换热器

Abstract： In this study, the fluidized bed heat transfer and fouling prevention technology is applied to the gas-phase heat transfer process in spiral plate heat exchanger, and a gas-solid circulating fluidized bed spiral plate heat exchanger is designed and built. The effects of operating parameters such as air flow rate (80—125 m³·h^-1), particle addition (0.5%—2.0%) and particle type on the heat transfer performance and pressure drop of circulating fluidized bed spiral plate heat exchanger using constant temperature water as hot fluid, air as cold fluid and three kinds of solid particles as solid working medium are studied. The experimental results show that the addition of particles can obviously improve the heat transfer performance of the spiral plate heat exchanger, but also increase the pressure drop. Within the range of operating parameters investigated in the experiment, the heat transfer enhancement factor of the best heat transfer enhancement effect can reach 29.28%. At this time, the particles added in the system are polyformaldehyde particles, the air flow rate is 125 m³·h^-1, and the amount of added particles is 2.0%, but the corresponding pressure drop ratio also reaches 20.86%. The three-dimensional diagrams of heat transfer enhancement factor and pressure drop ratio and the comprehensive influence radar diagrams are drawn which can guide the industrial applications.

Keywords： gas-solid circulating fluidized bed enhancement of heat transfer performance pressure drop spiral plate heat exchanger

Received 2023-04-05;

Fund:化学工程国家重点实验室开放项目(SKL-CHE-18B03);天津市科技支撑计划重点项目(2009ZCKFGX01900)。

Corresponding Authors: 姜峰,副教授,E-mail:jiangfeng@tju.edu.cn。 Email: jiangfeng@tju.edu.cn

About author: 姜峰(1975-),男,博士,副教授,现从事多相流强化传热与防、除垢方面的研究。

引用本文:

姜峰, 孙兴一, 齐国鹏, 李修伦.气-固循环流化床螺旋板式换热器的传热性能与压降[J]. 化学工业与工程, 2023,40(6): 78-88

JIANG Feng, Sun Xingyi, QI Guopeng, LI Xiulun.Thermal performance and pressure drop in a gas-solid circulating fluidized bed spiral plate heat exchanger[J]. Chemcial Industry and Engineering, 2023,40(6): 78-88

[1] 兰州石油机械研究所. 换热器[M]. 2版. 北京: 中国石化出版社, 2013
[2] QYResearch. 2023—2029全球与中国螺旋板式换热器市场现状及未来发展趋势[R]. 北京:北京恒州博智国际信息咨询有限公司,2023
[3] TRAFCZYNSKI M, MARKOWSKI M, URBANIEC K. Energy saving and pollution reduction through optimal scheduling of cleaning actions in a heat exchanger network[J]. Renewable and Sustainable Energy Reviews, 2023, 173: 113072
[4] RAJAVEL R, SARAVANAN K. Heat transfer studies on spiral plate heat exchanger[J]. Thermal Science, 2008, 12(3): 85-90
[5] RANGASAMY R. Experimental and numerical studies of a spiral plate heat exchanger[J]. Thermal Science, 2014, 18(4): 1355-1360
[6] FENG T, CHEN C. Numerical investigation on thermal-hydraulic performance of a spiral plate heat exchanger [J]. International Communications in Heat and Mass Transfer, 2022, 134: 106057
[7] BAHIRAEI M, AHMADI A A. Thermohydraulic performance analysis of a spiral heat exchanger operated with water-alumina nanofluid: Effects of geometry and adding nanoparticles[J]. Energy Conversion and Management, 2018, 170: 62-72
[8] BAHIRAEI M, SALMI H K, SAFAEI M R. Effect of employing a new biological nanofluid containing functionalized graphene nanoplatelets on thermal and hydraulic characteristics of a spiral heat exchanger [J]. Energy Conversion and Management, 2019, 180: 72-82
[9] NGUYEN D K, SAN J Y. Decrement in heat transfer effectiveness due to solid heat conduction for a counter-current spiral heat exchanger [J]. Applied Thermal Engineering, 2016, 103: 821-831
[10] 甘刘意, 陆怡, 查涵清, 等. 新型螺旋板式换热器及其传热特性研究[J]. 流体机械, 2021, 49(6):36-43 GAN Liuyi, LU Yi, ZHA Hanqing, et al. Research on new type spiral plate heat exchanger and its heat transfer characteristics[J]. Fluid Machinery, 2021, 49(6):36-43(in Chinese)
[11] 华婷婷, 陈永东, 徐双庆, 等. 定距柱对螺旋板式换热器传热特性的影响[J]. 高校化学工程学报, 2019, 33(4):808-814 HUA Tingting, CHEN Yongdong, XU Shuangqing, et al. Effects of spacer studs on heat transfer properties of spiral plate heat exchangers[J]. Journal of Chemical Engineering of Chinese Universities, 2019, 33(4): 808-814(in Chinese)
[12] BRETADO-DE LOS RIOS M S, RIVERA-SOLORIO C I, NIGAM K D P. An overview of sustainability of heat exchangers and solar thermal applications with nanofluids: A review[J]. Renewable and Sustainable Energy Reviews, 2021, 142: 110855
[13] WANG J, SHAO Y, YAN X, et al. Review of (gas)-liquid-solid circulating fluidized beds as biochemical and environmental reactors[J]. Chemical Engineering Journal, 2020, 386: 121951
[14] SONG J, CHI J. Heat transfer enhancement of a three phase circulating fluidized bed fruit juice evaporator using inert particles[J]. International Journal of Food Engineering, 2011, 7(2): 192-212
[15] LIU M, YANG Y, LI X, et al. Concentration of Gengnian'an extract with a vapor-liquid-solid evaporator[J]. AIChE Journal, 2005, 51(3): 759-765
[16] CHEN B, WEI G, ZHANG T, et al. Flow drag force contributes high bio-treatment efficiency in a circulating fluidized bed reactor: Mechanism of selective separation of functional decayed sludge[J]. Chemical Engineering Journal, 2023, 454: 140448
[17] LI D, CAI R, ZHANG M, et al. Operation characteristics of a bubbling fluidized bed heat exchanger with internal solid circulation for a 550-MWe ultra-supercritical CFB boiler[J]. Energy, 2020, 192: 116503
[18] BOLEA I, ROMEO L M, PALLARÈS D. Heat transfer in the external heat exchanger of oxy-fuel fluidized bed boilers[J]. Applied Thermal Engineering, 2014, 66(1/2): 75-83
[19] LI C, LI X, QIN L, et al. Membrane photo-bioreactor coupled with heterogeneous Fenton fluidized bed for high salinity wastewater treatment: Pollutant removal, photosynthetic bacteria harvest and membrane anti-fouling analysis[J]. Science of the Total Environment, 2019, 696: 133953
[20] JIANG F, ZHAO P, QI G, et al. Flow characteristics in a horizontal liquid-solid circulating fluidized bed[J]. Powder Technology, 2019, 342: 24-35
[21] JIANG F, ZHAO P, QI G, et al. Pressure drop in horizontal multi-tube liquid-solid circulating fluidized bed[J]. Powder Technology, 2018, 333: 60-70
[22] QI G, JIANG F. Numerical investigation on prevention of fouling in the horizontal tube heat exchanger: Particle distribution and pressure drop[J]. Desalination, 2015, 367: 112-125
[23] KALUEROVIĆ R T, URIŠ M, GARIĆ-GRULOVIĆ R, et al. Solid circulation rate and particle collisions in quasi two-dimensional water fluidized beds of spherical particles[J]. Powder Technology, 2014, 253: 295-303
[24] ZHAO T, LIU K, MURATA H, et al. Investigation of bed-to-wall heat transfer characteristics in a rolling circulating fluidized bed[J]. Powder Technology, 2015, 269: 46-54
[25] MURATA H, OKA H, ADACHI M, et al. Effects of the ship motion on gas-solid flow and heat transfer in a circulating fluidized bed[J]. Powder Technology, 2012, 231: 7-17
[26] 姜峰, 景文玥, 齐国鹏, 等. 蒸发段可变的三相闭式重力热管的传热性能[J]. 天津大学学报, 2021, 54(7):661-671 JIANG Feng, JING Wenyue, QI Guopeng, et al. Thermal performance of a three-phase closed thermosyphon with variable evaporation section[J]. Journal of Tianjin University, 2021, 54(7):661-671(in Chinese)
[27] 姜峰, 王锦锦, 齐国鹏, 等. 水平双管程液=固循环流化床中颗粒分布和压降[J]. 化学工业与工程, 2021, 38(2): 30-38, 68 Jiang Feng, Wang Jinjin, Qi Guopeng, et al. Particle distribution and pressure drop in a horizontal two-pass liquid-solid circulating fluidized bed[J]. Chemical Industry and Engineering, 2021, 38(2): 30-38, 68(in Chinese)
[28] 姜峰, 韩妮莎, 齐国鹏, 等. 气-固循环流化床换热器的传热性能与压降[J]. 化学工业与工程, 2021, 38(3): 36-48 JIANG Feng, HAN Nisha, QI Guopeng, et al. Heat transfer performance and pressure drop of a gas-solid circulating fluidized bed heat exchanger[J]. Chemical Industry and Engineering, 2021, 38(3): 36-48(in Chinese)
[29] 姜峰, 刘艺, 齐国鹏, 等. 液-固下行循环流化床中的颗粒碰撞行为[J]. 化学工业与工程, 2022, 39(3): 49-59 JIANG Feng, LIU Yi, QI Guopeng, et al. Study on particle collision behavior in a liquid-solid down-flow circulating fluidized bed[J]. Chemical Industry and Engineering, 2022, 39(3): 49-59(in Chinese)
[30] JIANG F, DONG X, QI G, et al. Heat-transfer performance and pressure drop in a gas-solid circulating fluidized bed spiral-plate heat exchanger[J]. Applied Thermal Engineering, 2020, 171: 115091
[31] MONJI H, MATSUI G, SAITO T. Pressure drop reduction of liquid-particles two-phase flow with nearly equal density[M]//Multiphase Flow 1995. Amsterdam: Elsevier, 1995: 355-365