为了实现对换热器内弹性管束振动的有效激发和控制，提出了一种新型脉动流发生装置，搭建了脉动流诱导弹性管束振动测试实验台，测试了换热器内各排弹性管束在不同工况下的振动响应。结果表明：在脉动流发生装置诱导下，弹性管束主要有两个振动频率，一个频率基本不受入口流速的影响，另一个频率随入口流速的增加而增加；本文提出的脉动流发生装置，一方面使弹性管束的振动强度明显增加，另一方面在一定程度上解决了各排弹性管束振动不均的问题。
Abstract
In order to realize effective exciting and control of elastic tube bundle vibration in heat exchanger, a new pulsating flow generator was proposed, the test platform of pulsating flow-induced elastic tube bundle vibration was built, and vibration responses of elastic tube bundles in heat exchanger were measured under different working conditions. The results showed that under the inducement of pulsating flow generator, elastic tube bundle mainly has two vibration frequencies, one frequency is basically not affected by inlet flow rate, the other one increases with increase in inlet flow rate; on the one hand, the proposed pulsating flow generator makes vibration intensity of elastic tube bundle increase obviously, on the other hand, the uneven vibration problem of elastic tube bundles is solved to a certain extent.
关键词
弹性管束 /
换热器 /
脉动流发生装置 /
振动响应
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Key words
elastic tube bundle /
heat exchanger /
pulsating flow generator /
vibration response
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参考文献
[1] 程林. 弹性管束换热器原理与应用[M]. 北京：科学出版社，2001，34-67.
CHENG Lin. Principle and application of elastic tube heat exchanger [M]. Beijing: Publishing House of Science, 2001, 34-67.
[2] JI J D, GE P Q, BI W B. Numerical analysis on shell-side flow-induced vibration and heat transfer characteristics of elastic tube bundle in heat exchanger [J]. Applied Thermal Engineering, 2016, 107: 544-551.
[3] 季家东，葛培琪，毕文波，等. 采用不同管排组合的弹性管束壳程流体诱导振动响应[J]. 西安交通大学学报，2018，52(3)：69-75.
JI Jia-dong, GE Pei-qi, BI Wen-bo, et al. Sell-side flow-induced vibration responses of elastic tube bundle based on different tube combinations [J]. Journal of Xi’an Jiaotong University, 2018, 52(3): 69-75.
[4] LIU P, DING W L, JI J D, et al. Heat transfer and thermo-mechanical analyses of W/CuCrZr monoblock divertor in subcooled flow boiling, Fusion Engineering and Design, 2019, 144: 46-56.
[5] YAN K, GE P Q, HONG J. Experimental study of shell side flow-induced vibration of conical spiral tube bundle [J]. Journal of Hydrodynamics, 2013, 25(5): 695-701.
[6] DUAN D R, GE P Q, BI W B, et al. Numerical investigation on the heat transfer enhancement mechanism of planar elastic tube bundle by flow-induced vibration [J]. International Journal of Thermal Sciences, 2017, 112: 450-459.
[7] 季家东. 弹性管束换热器壳程分布式脉动流诱导管束振动研究[D]. 济南：山东大学，2016：16-18.
JI Jia-dong. Study on flow-induced vibration of elastic tube bundle with shell-side distributed pulsating flow in heat exchanger [D]. Jinan: Shandong University, 2016: 16-18.
[8] JI J D, GE P Q, BI W B. Numerical analysis of shell-side flow-induced vibration of elastic tube bundle in heat exchanger [J]. Journal of Hydrodynamics, 2018, 30(2): 249-257.
[9] 季家东，葛培琪，毕文波. 换热器内多排弹性管束壳程流体诱导振动响应的数值分析[J]. 振动与冲击，2016，35(20)：85-89.
JI Jia-dong, GE Pei-qi, BI Wen-bo. Numerical analysis on shell-side flow induced vibration responses of multi-row elastic tube bundles in heat exchanger [J]. Journal of Vibration and Shock, 2016, 35(20): 85-89.
[10] 宿艳彩. 弹性管束流体诱导振动及换热特性研究[D]. 济南：山东大学，2012.
SU Yan-cai. A study on the characteristics of the flow-induced vibration and heat transfer of elastic tube bundle [D]. Jinan: Shandong University, 2012
[11] 姜波，郝卫东，刘福国，等. 流体脉动对新型弹性管束传热特性影响的实验研究[J]. 振动与冲击，2012，31(10)：59-63.
JIANG Bo, HAO Wei-dong, LIU Fu-guo, et al. Experiments on effects of fluid pulsation on heat transfer characteristics of the new type elastic tube bundle [J]. Journal of Vibration and Shock, 2012, 31(10): 59-63.
[12] 孟海涛. 弹性管束换热器内脉动流发生装置研究[D]. 济南：山东大学，2012.
MENG Hai-tao. Study on the pulsating flow generating device in elastic tube bundle heat exchanger [D]. Jinan: Shandong University, 2012.
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