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为了克服传统的冰水动力学试验和模型冰的缺点,开发并搭建了低温冰水动力学试验平台,用于模拟真冰条件下冰水的耦合作用。该试验平台极大地提高了冰水动力学试验的精度和效率,拓展了实验室所能模拟的冰水动力学过程,为生产实践中出现的复杂的冰问题研究提供了手段。试验平台包括温度控制SCADA系统、试验控制SCADA系统、可拆卸循环水槽、变速泵系统、可变速加冰系统、闸门控制系统等,实现了水位、流量、闸门动作和上游来冰模拟的计算机自动控制和实时数据采集。利用开发的试验平台,以南水北调中线工程典型的唐河倒虹吸为原型,开展了相关冰塞堆积试验,通过试验数据分析验证了平台工作的精度和可靠性。
In order to overcome the shortcomings of traditional ice hydrodynamic tests and model ice, a low temperature ice hydrodynamic test platform was developed and used to simulate the coupling of ice and water under true ice conditions. The test platform greatly improves the accuracy and efficiency of ice hydrodynamic tests and expands the ice-hydrodynamic process that the laboratory can simulate. It provides a means for the study of complex ice problems in production practice. The test platform includes a temperature control SCADA system, a test control SCADA system, a detachable circulating water tank, a variable speed pump system, a variable speed ice system, a gate control system and the like, realizing computer automatic control of water level, flow rate, gate action and upstream ice simulation And real-time data collection. Based on the developed experimental platform and the typical Tanghe inverted siphon of the midline of South-to-North Water Diversion Project, the ice-plug accumulation test was carried out. The accuracy and reliability of the platform were verified by experimental data analysis.