The sealing of pipeline with pressure is an important work which is often encountered in the maintenance, reconstruction or inspection of pipeline system. In order to ensure the stability and effectiveness of construction, a series of codes and regulations have been formulated to guide and regulate the operation of pipeline with pressure sealing. This paper will introduce in detail the newer pipeline sealing procedures with pressure.

I. Introduction

Pipeline pressure plugging refers to the use of plugging equipment to block the pipeline during the maintenance, transformation or detection of the pipeline system to keep the pressure in the system from leaking. This work is essential to protect worker stability, maintain pipeline equipment and ensure construction quality.

The new specification provides a comprehensive specification for pipeline pressure sealing, mainly including the following aspects:

1. Prepare the device

Before sealing the pipeline with pressure, it is necessary to conduct a comprehensive inspection and preparation of the plugging equipment used. Including checking the material, working pressure, sealing performance of the plugging equipment, etc., to ensure that the equipment meets the requirements, and carry out necessary maintenance and maintenance.

2. Preparation

Before sealing the pipeline with pressure, adequate preparatory work must be carried out. This operation includes determining the sealing position and sealing scheme, cleaning the inside of the pipeline, and determining the installation position and method of the sealing device.

3. Operation specifications

When sealing the pipeline with pressure, it is necessary to follow the standard operation process, including the correct installation of the sealing equipment, the inspection of the sealing performance, the gradual increase of the pressure, and the control of the pressure holding time. Workers must strictly follow operating procedures to ensure stability and effectiveness.

4. Stabilization measures

The stability measures must be strictly observed when the pipeline is sealed with pressure. This includes workers having to wear personal protective equipment that meets the requirements, ensuring that the site is well ventilated, and setting up warning signs and isolation measures. At the same time, it is necessary to fully consider the possible risks caused by pipeline pressure sealing, and formulate corresponding emergency plans.

5. Follow-up Procedure

Follow-up procedures must be performed after sealing pipes with pressure. Including plugging equipment disassembly and cleaning, pipeline system recovery and testing. At the same time, it is also necessary to record and sort out the relevant data and materials of the entire plugging process in time for subsequent analysis and summary

The new specification has a comprehensive specification for pipeline pressure sealing, from equipment preparation, preliminary preparation, operation specifications, stability measures to follow-up treatment and other aspects of the detailed provisions. Strict compliance with the code can ensure the stability and effectiveness of pipeline sealing with pressure.

In summary, the newer pipeline pressure sealing specifications cover multiple aspects and are essential to ensure the stability and quality of the construction process. Staff should be familiar with and comply with these specifications when performing pipeline pressure sealing operations to ensure the smooth progress of work. At the same time, it is also necessary to continue to pay attention to and learn the newer norms and technologies, and constantly improve their own advanced level.

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