Pipe pressure sealing is a very dangerous operation, because improper operation may cause explosion and serious injury. Therefore, a stable plugging method must be adopted. In this article, we will introduce four methods of pipe pressure sealing, and their advantages and disadvantages.

1. Blasting belt sealing method

The blasting belt sealing method is to seal the pipe with explosive materials, and then detonate at a stable distance to seal the pipe. The advantage of this method is simple operation, but the disadvantage is also very obvious. First, the explosion will bring noise and pollution to the workers and the surrounding environment. Secondly, because the explosion may cause damage to the pipeline, this method is only suitable for the short-term closure of the pipeline, not for long-term closure.

2. Rubber sealing method

The rubber sealing method is to insert the rubber ring into the pipeline, and then expand it with air pressure to fill the inside of the pipeline to achieve the purpose of sealing. The advantages of this method are simple operation, good plugging effect, and can be used for long-term plugging. The disadvantage is that precise measurement and installation is required to ensure that the size and shape of the rubber ring matches the pipe.

3. Ice blocking method

Ice sealing method is to use the cooling effect of water to form ice cubes, and then plug it into the pipe to achieve the purpose of sealing. The advantage of this method is that it is stable, can be used for long-term plugging, and the ice can gradually melt inside the pipe without the need for cleaning. However, this method requires a lot of cooling water, and the size and shape of the ice needs to be mastered to ensure that it matches the pipe.

4. Pneumatic sealing method

The pneumatic plugging method is to plug the pneumatic plugging head into the pipeline, and then inflate it with air pressure to fill the inside of the pipeline to achieve the purpose of plugging. The advantage of this method is that it is suitable for various types of pipelines and can be used for long-term plugging. The disadvantage is that precise measurement and installation is required to ensure that the size and shape of the plug head matches the pipe.

In short, pipeline sealing with pressure is a very dangerous operation, and safe sealing methods must be adopted. The four sealing methods introduced above have their advantages and disadvantages, and the selection of the appropriate sealing method needs to take into account many factors such as pipeline type, working environment, stability and efficiency.

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