Sealing with pressure is a common industrial pipeline maintenance method, its principle is to use elastic and malleable sealing equipment, the sealing equipment is placed in the pipeline, through the pressure is tightly fixed in the pipeline, and to achieve the purpose of sealing the pipeline, so as to solve the pipeline leakage, leakage, rupture and other problems. This method has been widely used in modern industrial production, and its simple, rapid and effective characteristics have been widely praised and applied in the industry.

The principle of sealing with pressure is designed based on the pressure characteristics of the pipeline. When the pipeline is in use, it is subjected to different degrees of internal pressure, and the water leakage and leakage caused by the existing pressure of the pipeline should be avoided. At the same time, the complexity of the pipeline structure and the stability of the sealing link should be taken into account.

First of all, the principle of sealing with pressure can be understood as two aspects, one is the expansion principle, the other is the sealing principle. In terms of expansion principle, the plugging equipment with pressure plugging will expand rapidly through pressure after entering the pipeline, and its purpose is to use the elasticity and ductility of the equipment to expand in the pipeline into the corresponding size with the diameter of the pipeline to achieve the effect of the gap in the pipeline. At the same time, the force generated by the expansion process will resist the pressure existing in the pipeline, so as to achieve the purpose of strengthening the sealing effect.

In terms of sealing principle, sealing is the key step of sealing with pressure. After the plugging equipment enters the pipeline, it will form a tight fit with the pipe wall through pressure, and form a sealing effect in the pipeline to prevent the flow of fluid. The Angle, expansion degree and initial size of the metal expansion belt are all important factors affecting the sealing effect. Through advanced calculation and evaluation, the expansion tension and the specific implementation method can reduce the damage of the pipeline to the sealing equipment as far as possible under the premise of ensuring the sealing effect.

Compared with other pipeline sealing methods, the working principle of pressure sealing has the following characteristics:

1. High stability: The principle of sealing with pressure is based on the pressure existing in the pipeline. The pressure will form an external force on the sealing equipment, making the sealing equipment fit with the wall of the pipeline and withstand additional force, which greatly reduces the stability risks in the sealing process.

2. High efficiency: Compared with the traditional pipeline sealing method, the sealing efficiency with pressure is significantly improved. When a small pipeline leak occurs, the corresponding equipment can be selected to plug the pipeline according to the specific problem, which is far faster and more convenient than the traditional method.

3. Strong hygiene: The harm caused in the process of sealing with pressure is small, and there will be no harmless substances such as some sealing equipment materials and air, which has a very low impact on the environment and is more hygienic.

In summary, the working principle of pressure sealing is in a highly optimized state and plays an increasingly important role in daily industrial production. Its fast, stable, hygienic and efficient characteristics are widely praised and applied, and will continue to strengthen technological innovation in the future to provide more reliable and effective solutions for industrial production.

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