长距离输水管道充水的方法技术

长距离输水管道充水的方法，属于供排水技术领域。长距离输水管道建成后初次充水是这样完成的：首先预充水，单独利用流量和扬程都小的泵给管道进行部分充水。然后利用阀门调节和变频调速相结合的方法启动工艺主泵进行充水。在低扬程区，主要依靠阀门调节管路阻力特性实现水泵的稳定运行，但阀门的开度还要保证水泵的最小连续流量要求；在高扬程区，靠改变驱动电机转速来调节水泵的Q～H特性曲线。频率越小，水泵的曲线与管道特性曲线越易相交，但随着管道中注入水量的不断增加，还要不断调整频率以保证能够打开水泵出口的逆止阀。通过不断调整出口阀门的开度和水泵电机的频率来完成长距离管道的整个充水过程。

Water filling method for long distance water delivery pipeline

The utility model relates to a water filling method for a long distance water delivery pipeline, which belongs to the technical field of water supply and drainage. After the completion of the long distance water pipeline is the first time to fill the water is completed: first, pre filled with water, the use of separate flow and head are small pump to the pipeline part of the water filling. Then use the valve regulation and frequency conversion speed of the method of combining the main pump to start the process of filling water. In the low lift area, mainly rely on the valve to adjust the pipeline resistance characteristics to realize the stable operation of the pump, but the opening of the valve to ensure the minimum continuous flow pump; in the high lift area, by changing the motor speed to adjust the pump Q ~ H curve. The smaller the frequency, the curve of the pump and the pipeline characteristic curve is easy to intersect, but with the increase in the amount of water injected into the pipeline, but also constantly adjust the frequency to ensure the opening of the pump outlet check valve. By constantly adjusting the opening of the outlet valve and the frequency of the pump motor to complete the whole process of water filling pipeline.

【技术实现步骤摘要】

【技术保护点】
长距离输水管道充水的方法，其特征在于首先要进行预充水；其次要对水泵工况进行调节；在充水过程中，要充分利用阀门调节和变频调速相结合的方法，通过阀门调节和变频调速相结合的方法启动工艺主泵对空管道进行充水。

【技术特征摘要】

【专利技术属性】
技术研发人员：孟丽芳，李军，王晓林，吕宏伟，武盛，陈叙，裴世泽，宁辉栋，张晓武，申海俊，
申请(专利权)人：内蒙古包钢钢联股份有限公司，
类型：发明
国别省市：