Pressure plugging is a technique used to plug pipes or containers in construction. It is usually used when pipes, containers, valves, or other equipment need to be repaired or replaced. The construction principle of sealing with pressure is to apply pressure in the pipeline or container to fill the plugging material to the leak or damage of the pipeline or container to achieve the purpose of temporary or sealing.

The construction principle of sealing with pressure can be divided into the following steps:

1. Determine the plugging location and plugging material: First, determine the location of the leak or damage in the pipeline or container. Select the appropriate sealer according to the specific situation, such as rubber sealer ring, tape, filler, etc. The choice of sealer should consider its pressure resistance, corrosion resistance and sealing performance.

2. Prepare the construction site: Before the construction with pressure sealing, it is necessary to prepare the construction site, including cleaning the surface of the pipeline or container, removing the pressure in the pipeline or container, ensuring and so on.

3. Installation of sealers: Select the appropriate installation method according to the sealing position and the characteristics of the sealers. For example, for a rubber sealing ring, a tool can be used to install it in a leak or damage. For tape or stuffing, it can be manually wrapped around leaks or damage in pipes or containers.

4. Apply pressure: After the plug is installed, pressure needs to be applied to fully fill the leak or damage and ensure that it can withstand the pressure in the pipe or container. Pressure can be achieved by using a pressure pump, air source, or other suitable equipment.

5. Test the blocking effect: After applying pressure, it is necessary to test the blocking effect. A pressure gauge or other detection device can be used to detect pressure changes in a pipe or container and to see if there is water or gas leakage at the blocked site.

6. Confirm the sealing effect: If the sealing effect is good, that is, there is no water leakage or gas leakage, and the pressure in the pipeline or container remains stable, it can be confirmed that the sealing construction is completed. If the blocking effect is not satisfactory, perform plugging again until the blocking effect meets the requirements.

The construction principle of pressure sealing can be applied to different types of pipelines, containers or equipment, such as industrial pipelines, oil and gas pipelines, water supply pipelines, chemical equipment, etc. It has the advantages of convenient construction and reliable sealing effect, which can solve the problems of water leakage and air leakage in pipelines or containers, improve work efficiency and ensure the stability of industrial production. At the same time, when using pressure sealing technology, it is necessary to pay attention to construction operation specifications to ensure stable construction and avoid further damage to pipelines or containers.

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