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永久排水系统是南水北调工程的质量安全保证工程,它利用逆止阀的单向排水功能,既能有效地平衡渠道混凝土面板上下层的水压力,又能保证渠道蓄水量不减少,保证南水北调工程的输水意义。
The permanent drainage system is the quality and safety assurance project of the South-to-North Water Diversion Project. It utilizes the one-way drainage function of the check valve to effectively balance the water pressure on the upper and lower floors of the concrete channel of the channel while ensuring that the water storage capacity of the channel is not reduced, The meaning of water transport.