Development of drainage technology for water pressure testing machine

After the pressure test of the pipeline is completed by a large-scale pipeline water pressure testing machine, it is necessary to drain the pipeline. Currently, the drainage method is to open the sealing end faces at both ends of the pipeline, so that the water inside the pipeline can pour out through the opened sealing end faces. Although this drainage method is simple, it may have some drawbacks in practical application: for example, this drainage method is disorderly drainage. When the sealing surfaces at both ends are opened, A large amount of water inside the pipeline will be instantly discharged from both ends of the pipeline. If the surrounding waterproof measures are not in place, the water will flow freely. Moreover, in the first half of the drainage period, due to the large amount of water stored in the pipeline, the horizontal shooting distance during drainage is far, which may splash onto the nearby pipeline for testing, causing the test personnel to be unable to judge the test results. Therefore, in this context, it is necessary to study and design a new type of post experimental ordered drainage process. To ensure that the water in the pipeline can be discharged in a controllable and orderly manner after the test is completed, and to solve the problems generated during the drainage process mentioned above.