长距离供水工程空气罐调压塔联合防护水锤

doi:10.3969/j.issn.1674-8530.18.0179

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Abstract Based on the method of characteristics(MOC), the mathematical model of an integrated system including the pump, pipeline, and water hammer protective measures is established in terms of a practical water supply project, and the transient pressure variation process in the system is simulated during a pump sudden stopping period. Based on simulations a low pressure exists at the local high elevation site. To avoid a negative pressure in the pipeline if an orderinary air vessel is involved in the system, then its volumme can be as large as 530.00 m³. To solve this problem, two methods, namlely, air vessel-two-way-surge tank and air vessel-one-way-surge tank, are proposed, their protective effectiveness is analyzed and compared. The results show that the volume of air vessel can be significantly reduced by two protective methods proposed. For the air vessel-two-way-surge tank method, the volume of air vessel has been reduced to 40.27 m³, however, its height reaches as high as 27.00 m, because the tank height is controlled not only by the piezometric head but also by the pump head. For the air vessel-one-way-surge tank method, the tank height is not limited by the piezometric head, and the volume of air vessel is reduced to 43.83 m³. Unforatunantely, more tanks are needed to ensure no negative pressure in the pipeline.

Key words： long-distance water supply project water hammer air vessel surge tank one-way surge tank

Received: 26 August 2018

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	WANG Si-Qi
	YU Xiao-Dong-^*
	NI Wei-Xiang
	ZHANG Jian

Cite this article:

WANG Si-Qi,YU Xiao-Dong-^*,NI Wei-Xiang等. Water hammer protection in long-distance water supply project with combined air vessel and surge tanks[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(5): 406-412.

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http://zzs.ujs.edu.cn/pgjx/EN/10.3969/j.issn.1674-8530.18.0179 OR http://zzs.ujs.edu.cn/pgjx/EN/Y2019/V37/I5/406

[1]张健,苗帝,黎东洲,等. 长距离供水工程空气罐水锤防护方案研究[M]//吴有生,唐洪武,王超. 第二十七届全国水动力学研讨会文集(下册). 北京:海洋出版社, 2015:534-543.
[2]WYLIE E B, STREETER V L. Fluid Transients[M]. New York, USA: McGraw-Hill Inc, 1983.
[3]KIM Sang-Gyun, LEE Kye-Bock, KIM Kyung-Yup. Water hammer in the pump-rising pipeline system with an air chamber[J]. Journal of hydrodynamics, 2014,26(6):960-964.
[4]邓安利,蒋劲,兰刚,等.长距离输水工程停泵水锤的空气罐防护特性[J]. 武汉大学学报(工学版), 2015,48(3):402-406.
　　DENG Anli, JIANG Jin, LAN Gang, et al. Research on protective properties of air vessel for pump-stopping water hammer protection of long distance pipelines[J]. Engineering journal of Wuhan University, 2015,48(3):402-406.(in Chinese)
[5]刘梅清,刘光临,刘时芳. 空气罐对长距离输水管道水锤的预防效用[J]. 中国给水排水, 2000,16(12):36-38.
　　LIU Meiqing, LIU Guanglin, LIU Shifang. Protection study on water hammer of long-distance water pipelines by air vessel[J]. China water and wastewater, 2000,16(12):36-38.(in Chinese)
[6]黄玉毅,李建刚,符向前,等. 长距离输水工程停泵水锤的空气罐与气阀防护比较研究[J]. 中国农村水利水电, 2014(8):186-188,192.
　　HUANG Yuyi, LI Jiangang, FU Xiangqian, et al. Research on the comparison of air vessel and air valve on pump-stopping water hammer protection of long-distance pipeline[J]. China rural water and hydropower, 2014(8):186-188,192.(in Chinese)
[7]STEPHENSON D. Simple guide for design of air vessels for water hammer protection of pumping lines[J]. Journal of hydraulic engineering, 2002,128(8):792-797.
[8]于永海,王金星,秦晓峰. 空气罐水锤防护的并联泵系统水力振动分析[J]. 排灌机械工程学报, 2013,31(11):958-963.
　　YU Yonghai, WANG Jinxing, QIN Xiaofeng. Hydraulic vibration analysis of parallel pump system with air surge tank for water hammer protection[J]. Journal of drainage and irrigation machinery engineering, 2013,31(11):958-963.(in Chinese)
[9]何城,张健,郑源,等. 卧式空气罐的水锤防护性能[J]. 排灌机械工程学报, 2017,35(2):138-143,151.
　　HE Cheng, ZHANG Jian, ZHENG Yuan, et al. Protective properties of horizontal air vessel for water hammer.[J]. Journal of drainage and irrigation machinery engineering, 2017,35(2):138-143,151.(in Chinese)
[10]杨开林. 电站与泵站中的水力瞬变及调节[M]. 北京:中国水利水电出版社, 1999.
[11]蒋梦露,张健,罗浩,等. 气囊式空气罐水锤防护研究[J]. 南水北调与水利科技, 2015,13(4):713-716,725.
　　JIANG Menglu, ZHANG Jian, LUO Hao, et al. Research on water hammer protection of pneumatic tank[J]. South-to-north water transfers and water science and technology, 2015,13(4):713-716,725.(in Chinese)
[12]杨玉思,徐艳艳,羡巨智. 长距离高扬程多起伏输水管道水锤防护的研究[J]. 给水排水, 2009,35(4):108-111.
　　YANG Yusi, XU Yanyan, XIAN Juzhi. Research on water hammer prevention in high-lift, hilly and long dista-nce water transmission pipeline[J]. Water and waste-water engineering, 2009,35(4):108-111.(in Chinese)
[13]张健,索丽生,胡建永,等. 长距离供水工程单向塔设置分析[J]. 水力发电学报, 2011,30(1):49-56.
　　ZHAGN Jian, SUO Lisheng, HU Jianyong, et al. Study on water hammer control by one-way surge tank in long-distance water-supply project[J]. Journal of hydroele-ctric engineering, 2011,30(1):49-56.(in Chinese)
[14]梁兴. 基于正交试验的单向调压塔结构优化研究[J]. 给水排水, 2015,41(2):97-100.
　　LIANG Xing. Structural optimization of one-way surge tank based on the orthogonal test[J]. Water and wastewater engineering, 2015,41(2):97-100.(in Chinese)