Pressure plugging refers to the injection of a certain pressure of fluid or gas into a pipeline, container or equipment to prevent the leakage of liquid or gas or the entry of external substances. This technology is widely used in various industries, such as petrochemical, energy, water treatment, pharmaceutical, etc., to ensure the stable operation of the system. In order to ensure the effectiveness of sealing with pressure, there are several important requirements that need to be followed.

First, stability is the first principle of plugging with pressure. The safety of the operator must be ensured when performing a pressure plug operation. Operators should be technically trained and instructed to understand the risks and stable operating procedures associated with pressure plugging. Wear appropriate personal protective equipment, such as glasses, gloves and leg warmers. In addition, equipment and tools must be regularly inspected and maintained to ensure their normal operation and stability.

Secondly, technical specifications and standards are the basis of pressure plugging. It is important to understand and comply with relevant technical codes and standards, such as ASME, API and ISO, before performing a pressure plug. These codes and standards provide detailed requirements for plugging materials, plugging methods, plugging pressures and plugging times. Compliance with these requirements ensures the reliability and durability of the plug.

Third, choosing the right plugging material is the key to sealing with pressure. The sealing material should have good sealing performance and pressure resistance. Commonly used sealing materials include tape, glue, fillers and sealants. When selecting the sealing material, the characteristics of the working environment, such as temperature, pressure and chemical properties, should be taken into account. In addition, plugging materials should be laboratory tested and field validated to ensure their suitability and reliability.

Finally, the monitoring and quality control of the plugging operation is the necessary link of the plugging with pressure. In the operation of sealing with pressure, special monitoring personnel should be responsible for monitoring the pressure change and leakage during the sealing process, and strict quality control measures should be developed, such as pre - and post-sealing inspection and testing, to ensure that the sealing effect meets the requirements. If the sealing effect is not ideal, corrective measures should be taken in time to avoid the occurrence of accidents.

In summary, the requirements for pressure plugging include stability, technical specifications and standards, suitable plugging materials, and monitoring and quality control. Compliance with these principles can ensure the stability and reliability of the operation with pressure closure and ensure the normal operation of the system.