Sealing with pressure is a common engineering technology, widely used in petroleum, gas, cement, chemical industry and so on. It refers to the application of external pressure to fill the material into a specific part of the pipe or equipment, so as to achieve the purpose of sealing the pipe or equipment. The sealing technology with pressure plays an important role in pipeline maintenance, emergency repair, plugging holes and so on. It has the characteristics of fast and effective, and is widely used in industrial fields.
First, the principle and application of pressure plugging
1.1 Principles of Sealing with pressure
Pressure sealing technology uses elastic, plastic and other characteristics of the material to fill the gap in the pipeline or equipment, under the action of external pressure to form a seal, to achieve the effect of sealing. Commonly used filling materials include polyurethane foam, rubber, silicone, etc. These materials have excellent sealing performance and pressure performance, and can withstand extrusion deformation under high pressure environment without breaking.
1.2 Applications with pressure plugging
Pressure plugging technology is widely used in the following fields:
(1) Pipeline maintenance and repair: During the operation of the pipeline, leakage, cracks and other problems may occur due to various reasons, and pressure sealing can quickly and effectively repair the pipeline and restore the normal operation of the pipeline.
(2) Accident emergency treatment: In the oil, gas and other industries, if there is an accident such as pipeline leakage or explosion, pressure sealing can quickly stop bleeding and reduce accident losses.
(3) Process pipeline plugging: in process production, sometimes it is necessary to plug the pipeline for maintenance, equipment replacement and other operations, and pressure plugging can provide temporary plugging solutions to ensure normal production.
1.3 Advantages of pressure plugging
The pressure sealing technology has the following advantages over the traditional pipeline sealing method:
(1) Fast: sealing with pressure can complete the sealing operation in a short time, saving time and cost.
(2) Effective: The filling material has good sealing performance and can effectively block the leak of the pipeline or equipment.
3) Stable: with pressure sealing can be carried out in the normal operation of the pipeline or equipment, without stopping maintenance, reducing the risk of work.
(4) Health: the process of sealing with pressure will not produce pollutants, harmless to the environment.
2. Operation steps with pressure sealing
2.1 Preparations
Before plugging with pressure, complete preparations must be made, including determining the plugging location, selecting appropriate filling materials, and preparing tools and equipment.
2.2 Construction Process
(1) Clean the sealing position: clean the surface of the pipeline or equipment, remove debris and corrosion, and ensure the adhesion of the filling material.
(2) Installation of plugging equipment: according to the size and shape of the plugging position, select the appropriate plugging equipment, and fix it at the leak of the pipeline or equipment.
(3) Injection of filling material: the filling material is injected into the inside of the plugging device until it is full of the entire leak to ensure the sealing effect.
(4) Apply external pressure: Use common equipment to apply external pressure to make the filling material closely fit with the pipe or equipment to form a seal.
(5) Testing the sealing effect: After the filling material is cured, the sealing effect is tested to ensure that the sealing is firm and reliable.
2.3 Finishing Work
After the completion of sealing, clean up the construction site in time, recover the used equipment and materials, and do a good job of stable protection to ensure the construction quality and personnel stability.
Third, the development trend of sealing with pressure
The application of pressure sealing technology in the industrial field is more and more extensive, and the future development trend is mainly reflected in the following aspects:
3.1 Automation technology: With the continuous progress of science and technology, the sealing technology with pressure will be more automated and automated, reduce manual operation, and improve construction efficiency.
3.2 Hygienic materials: Future filling materials will be more hygienic and have less impact on the environment.
3.3 Multi-functional application: pressure plugging technology will develop in the direction of multi-function, can be used for pipeline plugging, but also can be applied to other fields, such as hydraulic engineering, building construction and so on.
3.4 Data management: In the future, pressure plugging technology will pay more attention to data management, and improve construction quality through real-time monitoring and data analysis.
Iv. Conclusion
As an efficient and stable plugging method, the sealing technology with pressure has become an indispensable tool in the industrial field. Through continuous technological innovation and development, pressure sealing technology will provide more reliable and efficient solutions for industrial production, and promote the development and progress of the industrial field. It is hoped that the pressure sealing technology can be more widely used in the future, and bring more convenience and help to the development of all walks of life.
