The extension of pipeline engineering is a complex and important work, which involves many aspects of knowledge and technology. In the pipeline expansion project, pressure plugging is a very important link. Below I will give you a detailed introduction to the relevant content of the expansion pipeline project with pressure sealing.

Sealing with pressure refers to the need to temporarily block the pipeline in order to carry out construction, maintenance or testing in the pipeline system to prevent the medium from leaking or affecting other working areas. The purpose of sealing with pressure is to ensure the safety and reliability of the pipeline system. Before plugging with pressure, detailed planning and preparation is required to ensure the smooth operation of the plugging operation.

First, a thorough inspection and evaluation of the piping system is required before a pressure plug can be carried out. Ensure piping system structure and materials comply with relevant standards and specifications. Check the connection, welding quality, sealing, etc. of the pipeline system to ensure the reliability of the pipeline system.

Secondly, choose the appropriate plugging materials and plugging equipment. According to the medium and pressure level of the pipeline system, select the corresponding sealing materials and equipment. Common plugging materials include rubber plug, steel plug, plywood, etc. Plugging equipment includes hydraulic plug, mechanical plug and so on. Select the appropriate materials and devices to plug the device based on the specific plugging requirements.

Before plugging, make preparations for the blocked area. Clean the blocked area to ensure that there are no contaminants such as debris and oil. Check the sealing material to ensure it is intact. Take protective measures around the blocked area to prevent the blocking operations from affecting the surrounding environment.

Next, perform the plugging operation. Select appropriate plugging materials and equipment according to the characteristics of the plugging area. Install plugging materials in the plugging area according to the plugging device instructions, and adjust and secure them properly. According to the actual situation, the quantity and thickness of the sealing material should be appropriately increased to ensure the sealing effect.

Finally, test and monitor after plugging. After plugging operations are complete, test the plugging area to ensure that the plugging effect meets requirements. You can use pressure gauges and thermometers to check whether the pressure and temperature in the blocked area are normal. During the plugging period, periodically monitor the status of the plugging area to ensure that no leakage or loosening occurs.

In the process of sealing with pressure, special attention needs to be paid to safety issues. The plugging operation involves high pressure and dangerous media, and the relevant safety operation procedures must be strictly followed. Operators must have professional knowledge and skills and strictly follow the operation process to ensure their own safety and project quality.

To sum up, pressure sealing of pipeline expansion project is a complicated and important work. The stability and reliability of plugging operations can be ensured by detailed planning and preparation, selecting appropriate plugging materials and equipment, and strictly following the operation procedures. The successful implementation of sealing with pressure is of great significance to the smooth progress of pipeline engineering.