Structural design and performance research of seven-channel spherical check valve
Zhao Fei1, Fu Jie1, Song Wenwu1, Wang Chunzhi2
1.School of Energy and Environment, Xihua University, Chengdu, Sichuan 610039, China; 2.Chengdu Weisheng Seal Unit Assemblage Equipment Co.Ltd., Chengdu, Sichuan 610039, China
Abstract：A seven-channel spherical check valve was designed to solve the prevailing problem and to overcome disadvantages of check valves for DN≥200 mm piping system. UG software was used to establish the model of the seven-channel spherical check valve. By using CFD technique, the internal flow of the seven-channel spherical check valve was numerically simulated. On the same water hammer test rig, the water hammers and hydraulic losses of spherical and swing check valves were tested and compared. The results show that the maximum water hammer pressure of the seven-channel spherical check valve is only half of the swing check valve, the closing time of the former is double of the latter, with the same diameter for hard shutdown condition of the pump. In the same throughout flow condition, the hydraulic loss of the former is only 10% of the latter.
赵飞, 符杰, 宋文武, 王春志. 七流道球型止回阀的结构设计及性能分析[J]. 排灌机械工程学报, 2013, 31(8): 708-712.
Zhao Fei, Fu Jie, Song Wenwu, Wang Chunzhi. Structural design and performance research of seven-channel spherical check valve. Journal of Drainage and Irrigation Machinery Engin, 2013, 31(8): 708-712.
[1]陈再富.一种节能止回阀的研制及应用[J].冶金动力,2006(2):31-32. Chen Zaifu. Development and application of an energy saving check valve[J]. Metallurgical Power, 2006(2):31-32.(in Chinese)[2]方本孝,郑庆伦,王渭.高性能止回阀结构设计的分析研究[J].流体机械,1998,26(4):10-14. Fang Benxiao, Zheng Qinglun,Wang Wei. Research on structure design of check valve with high performance[J]. Fluid Machinery,1998,26(4):10-14.(in Chinese)[3]邹宪军,张桂香,田永建,等.大型止回阀节能新技术研究[J].节能技术,2008,26(3):240-242. Zou Xianjun, Zhang Guixiang, Tian Yongjian, et al. Study of new energy saving technology for heavy check valve[J]. Energy Conservation Technology, 2008, 26(3):240-242.(in Chinese)[4]符杰,宋文武,王华,等.多流道球形止回阀性能研究[J].中国农村水利水电, 2006(4):65-66,70. Fu Jie, Song Wenwu, Wang Hua, et al. Research on performance of spherical check value with multichannel[J]. China Rural Water and Hydropower, 2006(4):65-66,70.(in Chinese)[5]Han Xu, Zheng Mingguang, Yu Yiqi.Hydrodynamic characterization and optimization of contra-push check valve by numerical simulation[J]. Annals of Nuclear Energy,2011,38(6): 1427-1437.[6]Park Youngchul,Song Xueguan.Advances in Computational Algorithms and Data Analysis[M]. Berlin: Springer Netherlands,2008.[7]韩占忠,王敬,兰小平.FLUENT流体工程仿真计算实例与应用[M].2版. 北京:北京理工大学出版社,2010.[8]Ho G L, Jin H P, Seung C J. Development of a swing check valve model for a low velocity pipe flow prediction[J]. Nuclear Engineering and Design, 2006, 236(10):1051-1060.[9]伍悦滨,曲世琳,张维佳,等.给水管网中阀门阻力实验研究[J].哈尔滨工业大学学报,2003,35(11):1311-1313. Wu Yuebin, Qu Shilin, Zhang Weijia, et al. Local head loss caused by valves in water distribution network[J]. Journal of Harbin Institute of Technology, 2003, 35(11):1311-1313.(in Chinese)[10]Seong S H, Hur S, Kim J S, et al. Development of diagnosis algorithm for the check valve with spectral estimations and neural network models using acoustic signals[J]. Annals of Nuclear Energy,2005,32(5): 479-492.[11]吴建华,万天佐,温反正.蝶型止回阀消除水锤效果的试验研究[J]. 农业机械学报,1995,26(2):47-51. Wu Jianhua, Wan Tianzuo, Wen Fanzheng. Testing research on water hammer elimination effect of butterfly check valve[J]. Transactions of the Chinese Society for Agricultural Machinery, 1995, 26(2):47-51.(in Chinese)[12]Khamlichi A, Jezequel A, Tephany F. Elastic-plastic water hammer analysis in piping systems[J]. Wave Motion, 1995, 22(3):279-295.[13]Barna I F, Imre A R, Baranyai G, et al. Experimental and theoretical study of steam condensation induced water hammer phenomena[J]. Nuclear Engineering and Design, 2010, 240(1):146-150.[14]Ismaier A, Schlucker E. Fluid dynamic interaction between water hammer and centrifugal pumps[J]. Nuclear Engineering and Design, 2009, 239(12):3151-3154.[15]刘在伦,李琪飞.水力机械测试技术[M].北京:中国水利水电出版社,2009.
