Pressure plugging is a plugging process used in a pipe or container that uses pressure to push a sealing material or device into an opening in the pipe or container to stop the leakage of fluid or gas. This sealing method is widely used in pipeline maintenance, emergency treatment, industrial equipment maintenance and other fields.

The principle of sealing with pressure is based on the action of pressure. When a leak occurs in a pipeline or container, using a pressure plugging process can seal the leak without shutting down the system, reducing risk and production downtime. The effectiveness of this sealing method lies in its ability to secure the sealing material or device to the leak by applying pressure, forming an effective sealing layer, thereby preventing the leakage of fluid or gas.

The sealing process with pressure usually requires the preparation of some sealing materials and devices, as well as certain equipment and tools. Common sealing materials include sealing paste, sealant, sealing tape, etc., which have good sealing performance and pressure resistance. In addition, special plugging devices can also be used, such as plugging balls, plugging plates, etc. These devices can be selected according to the actual needs of the appropriate size and material, in order to achieve effective sealing effect.

The process steps of sealing with pressure usually include the following aspects:

1. Preparation: Before plugging with pressure, it is necessary to evaluate and locate the vulnerability to determine the specific location and size of the plugging. At the same time, prepare the required sealing materials, sealing devices, and tools, and ensure the reliability of the equipment and tools.

2. Cleaning and preparation: Clean the surface around the leak to ensure the adhesion of the sealing material. For the closure of liquid fluids, a solution can be used for cleaning. For the blocking of gas flow, it can be cleaned using air purging or other cleaning tools.

3. Apply plugging material: Select the appropriate plugging material according to the nature and size of the hole. Apply, wrap or fill the plugging material to the leak and ensure that the plugging material is tightly fitted to the surrounding surface.

4. Apply pressure: Use commonly used equipment or tools to apply pressure and push the sealing material into the hole. The amount of pressure depends on the nature of the leak and the required plugging effect. Before applying pressure, it is necessary to ensure the stability and reliability of the equipment and tools, and to follow the relevant operating procedures and standards.

5. Detection and verification: After the plugging is complete, the vulnerability is detected and verified. Pressure testing, leak detection and other methods can be used to ensure the effectiveness and stability of the plug. At the same time, check and maintain the system or device after plugging to ensure its normal operation.

The pressure sealing technique has many advantages. First, it can be plugged without downtime, reducing downtime and production losses during production and maintenance. Secondly, with pressure plugging can quickly and effectively plug the leak, reducing the impact of leakage on the environment and equipment. In addition, pressure sealing can also be applied to various types of pipelines and containers, including high pressure, high temperature, corrosive media, etc.

However, there are some limitations and considerations with pressure plugging. First of all, the selection of sealing materials and devices needs to be reasonably evaluated and selected according to the actual situation to ensure the effectiveness of the sealing and the stability of the rod. Secondly, careful operation is required when applying pressure to avoid excessive pressure leading to the rupture or damage of equipment or pipelines. In addition, pressure plugging is only suitable for temporary plugging, long-term plugging requires other more reliable methods.

In short, pressure plugging is a commonly used pipeline and container plugging process, which can quickly and effectively plug holes and reduce the impact of leaks on the environment and equipment. However, in the application of pressure plugging technology, it is necessary to fully consider the actual situation and stability factors, reasonable selection of plugging materials and devices, and strictly follow the operating procedures and standards to ensure the effectiveness and stability of plugging.