In order to improve the reliability and applicability of performance testing system for centri-fugal pumps and enhance the automatic degree of testing process at the same time, the structure of a kind of general automatic testing system was constructed in this study. Programmable logic controller(PLC)or data acquisition card was selected as the sensor for signal sampling and the controller for the pumps and valves in the system. Moreover, a touch screen was used as the human-machine interaction. The system software was developed by using configuration software, and other functional modules written with Visual Basic 6.0 to conduct performance curve fitting and generate a test report, etc were embedded. As a result of these, the testing system not only can sample a variety of sensor signals, but also can support various kinds of data acquisition equipments,making the system more flexible and app-licable. In the present work, the composition scheme of the testing system, software programming, curve fitting principle and the realization of test control hardware were described. The obtained results show that the testing system has been greatly improved in degree of automation, communication ability, and performance of human-machine interaction as well as portability because comprehensive application and development of generalized controllers, configuration software and Visual Basic function modules were involved. The proposed system could be promising for testing and maintenance of pump equipment and for design of industrial automated production system.
Ma Liang, Wei Zhiming, Ma Tianshi, et al. The research status at home and abroad and the development trend of pump testing technology[J]. Development & Innovation of Machinery & Electricity Products,2012,25(3): 20-21.(in Chinese)
Tang Yue, Huang Zhipan, Tang Lingdi,et al. Experiment of constant pressure control characteristics for centrifugal pump[J]. Transactions of the Chinese Society for Agricultural Machinery, 2013, 44(3): 59-63.(in Chinese)
Ramamoorthy C, Selladurai V, Ranganathan R. Experimental cost reduction in pump manufacturing industries through software based mechatronics system[J]. Procedia Engineering, 2012, 38: 1665-1674.
彭利国. 船用离心泵监测系统研究[D]. 武汉:武汉理工大学能源与动力工程学院, 2009.
李娟. 组态王在泵性能测试系统中的应用[J]. 湖南农机, 2010,37(3): 22-23.
Li Juan. Applying of kingview in pump performance test system[J].Hunan Agricultural Machinery, 2010,37(3): 22-23.(in Chinese)
Zhang S W, Liang W S, Zhang Z J. Development and uncertainty analysis of an automatic testing system for diffusion pump performance[J]. Physics Procedia, 2012, 32: 255-264.
Ma Dongqi. Application of PLC in the fast test system for electric pump[J].Fluid Machinery,2011,39(11): 54-57.(in Chinese)
Xu Lin, Jiang Yan, Wang Jianhui, et al. Design of fuzzy-PID controller based on prediction model and its realization in PLC[C]//Proceedings of the 2008 Chinese Control and Decision Conference, 2008:3808-3811.
Yan Chen, Lei Jinhui, Yang Xuebing. Variable discourse of universe fuzzy-PID temperature control system for vacuum smelting based on PLC[C]//Proceedings of the Global Congress on Intelligent Systems, 2009:541-544.
You Yafeng, Ma Xinhua, Li Qiaojun, et al. Realization of the electric valve′s PI control in pump test-bed based on PLC[J]. Drainage and Irrigation Machinery, 2007, 25(4): 50-53.(in Chinese)
施爱蕊,卜从兵. 影响水泵性能参数测定的因素分析[J]. 硅谷, 2011(9): 122.
Shi Airui, Bo Congbing. Analysis of factors affecting the measurement of pump performance parameters[J]. Silicon Valley, 2011(9):122.(in Chinese)
李娟.组态技术在液压泵测试系统中的应用[J]. 机床与液压, 2010,38(8): 95-97.
Li Juan. Application of configuration technique in hydraulic pump test system[J]. Machine Tool & Hydraulics, 2010,38(8):95-97.(in Chinese)
Zeng Shuting, Yang Zhijia. A high performance architecture design of PLC dedicated processor[C]//Proceedings of the 3rd International Conference on Advanced Computer Theory and Engineering, 2010:424-428.