Selecting the right pressure plugging technology is a very important job, it can ensure that in the event of an emergency in the industrial production process, it can quickly and effectively plug the pipeline or equipment, avoid accidents, protect personnel safety and equipment integrity.

Pressure plugging technology refers to the method of plugging when there is pressure inside the pipeline or equipment. Several factors need to be considered before selecting the right pressure plugging technique:

1. Application scenario: Different industrial production processes may encounter a variety of different pressures, temperatures and media. Therefore, before selecting a sealing technology with pressure, it is necessary to fully understand and analyze the application scenario, including the specific process requirements, the material of the pipe or equipment, the pressure and temperature range.

2. Sealing effect: The selection of the appropriate sealing technology with pressure needs to consider the sealing effect. Plugging effect includes plugging reliability. Reliability refers to the ability to maintain a good sealing effect after plugging to ensure that no leakage occurs. Stability means that the plugging process does not pose risks to personnel and equipment.

3. Simplicity of operation: The choice of sealing technology with pressure should also consider the simplicity of operation. In the industrial production process, it is often necessary to plug pipelines or equipment quickly in a short period of time, so it is very important to choose a simple and convenient sealing technology with pressure.

4. Economy: Finally, it is also necessary to consider the economy of the sealing technology with pressure. Economy includes the cost of plugging materials, the time required for plugging and labor costs. When selecting the sealing technology with pressure, it is necessary to consider the above factors comprehensively and choose the economical and reasonable technology.

Based on the above considerations, several common pressure plugging techniques are described below:

1. Expansion sealing belt: Expansion sealing belt is a sealing belt made of special materials, which can form an expansion seal inside the pipeline or equipment to prevent media leakage. It has the characteristics of good sealing effect, simple operation, safety and reliability, and is suitable for the sealing of pipelines and equipment under various pressure and temperature conditions.

2. Expansion occluder: The expansion occluder is a device similar to a balloon, which can form an expansion seal inside the pipeline or equipment by inflating or filling with water, etc., and play a blocking role. It has the characteristics of good sealing effect, simple operation, reusable and so on, and is suitable for small and medium diameter pipeline and equipment sealing.

3. Hydraulic sealer: Hydraulic sealer is a device that uses hydraulic principle to achieve sealing. It uses liquid pressure to push the sealing gasket or plugging block into the pipe or equipment to form a seal. Hydraulic sealer has good sealing effect, can adapt to different sizes and media of the pipeline and equipment, etc., suitable for large diameter pipeline and equipment sealing.

4. Pneumatic sealer: Pneumatic sealer is a device that uses the principle of air pressure to achieve sealing. It creates a seal by injecting gas into pipes or equipment. The pneumatic sealer has the characteristics of simple operation, good sealing effect, and can adapt to pipelines and equipment of different sizes and media, and is suitable for small and medium diameter pipelines and equipment sealing.

In short, when selecting the appropriate sealing technology with pressure, it is necessary to fully consider the application scenario, sealing effect, simplicity of operation and economy. According to the specific needs and conditions, the selection of the appropriate sealing technology with pressure can ensure that the pipeline or equipment can be quickly and effectively blocked in the event of an emergency in the industrial production process, protecting the stability of personnel and the integrity of the equipment.