The construction scheme of pipeline with pressure sealing and opening is a common method for maintenance, reconstruction or new construction of pipeline during operation. Its core objective is to seal and open the pipeline while maintaining the normal operation. The following will give you a detailed introduction to the pipeline with pressure sealing opening construction scheme.

1. Preparation for construction

1. Before construction, it is necessary to fully understand the working parameters of the pipeline, including pressure, temperature, media, etc.

2. Carry out site survey of the construction area, determine the specific location and scope of the construction, and draw engineering drawings and process tables.

3. Select appropriate plugging tools and devices based on project requirements, including plugging devices, plugs, and sealing gaskets.

Second, the selection and installation of the stopper

1. According to the diameter of the pipeline and the characteristics of the medium, select the appropriate stopper. Generally, inflatable sealer, hydraulic sealer or mechanical sealer can be selected.

2. Debug and install the occluder according to its dimensions and construction requirements. Ensure that the stopper is able to completely seal the pipe and is well sealed with the pipe.

Third, the inflatable or hydraulic sealing of the stopper

1. For the gas filler, install it on the pipeline and inflate it through the gas filler. The inflation pressure should be determined according to the working pressure of the pipeline and properly monitored.

2. For hydraulic sealer, first install it on the pipeline, and hydraulic seal through the hydraulic pump. Ensure that the hydraulic sealer is in full contact with the pipeline and that there is no leakage.

4. Preparation and stability protection of the construction area

1. Set warning signs around the construction area to keep the safety of the construction site.

2. Clean up the debris and dirt in the construction area to ensure the cleanliness of the construction area.

3. Set up protective railings or stability nets to protect the safety of construction personnel.

Five, opening operation

1. Determine the opening position and mark the position.

2. Use a suitable hole cutting tool, such as an electric cutting machine or a flame cutting machine, to open the hole. Ensure stable operation to avoid damage to the pipeline.

3 After opening the hole, clean up the debris and dirt in the pipeline in time to ensure that the pipeline is smooth.

6. Removal of the occluder and restoration of the pipeline

1. After opening holes, remove the occluder according to the construction plan and requirements, and check. Ensure the integrity of the stopper and the tightness of the pipeline.

2. Clean and repair the pipeline as needed to ensure the normal operation of the pipeline.

3. Clean up the construction area and restore the current environment.

Vii. Inspection and acceptance after construction

1. Perform pressure test and leak test on the pipeline to ensure the stability and stability of the pipeline construction progress and quality inspection to ensure that the construction meets the relevant standards and requirements.

3. Conduct final acceptance of the construction area to ensure the quality and stability of construction.

The above is the main content of the pipeline with pressure sealing and opening construction scheme. In the actual construction process, it should be adjusted and supplemented according to the specific situation to ensure the smooth progress of construction and stable and reliable. At the same time, the construction personnel should have the relevant advanced knowledge and experience, and work in strict accordance with the operating procedures to ensure the quality and stability of construction.

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