When it comes to the reliability of industrial equipment, plugging is a very important link. In some special cases, it is necessary to seal the equipment with pressure. In this article, I will explain in detail the definition, principle, application and related safety and stability measures of pressure plugging.

Pressure plugging is a technical method used to plug a pipe or equipment in a high-pressure environment to stop or adjust the flow of fluid. It is mainly used in petrochemical, energy, pharmaceutical, food processing and other industrial fields, and plays an important role in equipment maintenance, repair, cleaning, testing and other processes.

The principle of sealing with pressure is based on the balance of pressure and the effect of sealing. The effect is achieved by using a specially designed plug appliance, placing it in the plug position of the pipeline or equipment, and expanding it to the inner wall of the pipeline or equipment by an external force (usually hydraulic or air pressure). In this process, there must be a good sealing contact between the plug and the pipe or equipment to ensure that no leakage occurs in high pressure environments.

Pressure plugging is usually used in the following ways:

Equipment maintenance and repair: During equipment maintenance and repair, the equipment needs to be disassembled or replaced with parts. A pressure plug prevents fluid leakage at critical points in the equipment and ensures the safety of service personnel.

2. Pipeline cleaning and testing: When cleaning and testing pipelines, pressure sealing can prevent pollutants or impurities from entering the pipeline system and ensure the cleanliness and integrity of the pipeline.

3. Disconnect the pipe connection: In the case that the pipe connection needs to be disconnected, the pressure plug can temporarily plug the pipe to allow the repair or replacement of the pipe connection.

4. Process adjustment and control: During a specific operation, it may be necessary to adjust or control the flow of fluids. Pressure plugging helps to achieve directional flow and control of fluids.

When performing a pressure plug, the relevant stability measures must be strictly followed to ensure the stability of the operator and the equipment. Here are some common stabilization measures:

1. Select the right plugging appliance: Select the right plugging appliance according to the size, pressure and other parameters of the pipeline or equipment. Ensure that the quality and performance of the plug equipment meet the standard requirements.

2. Carefully check the pipeline or equipment: Before sealing with pressure, the pipeline or equipment must be inspected to ensure that there is no crack, corrosion, etc. If any problem is found, it must be repaired or replaced in time.

3. Strict compliance with procedures: Before performing pressure plugging, it is necessary to develop detailed operating procedures and ensure that the operator strictly follows the procedures. Any operation must be carried out after adequate preparation and training.

4. Monitoring and testing: Monitoring and testing must be carried out before, during and after pressure plugging to ensure the stability and tightness of the plugging apparatus. Gauges, thermometers, leak detectors and other equipment can be used for monitoring and detection.

5. Emergency handling: In the process of sealing with pressure, if an emergency occurs, emergency measures must be taken immediately, such as decompression, emergency discharge, etc., to protect the stability of operators and equipment.

In short, pressure plugging is an important industrial technology that is widely used in various fields. It can ensure the stable operation of the equipment and the control of the fluid, but the stability measures must be strictly observed during the operation to protect the stability of the operator and the equipment.