The installation of cryogenic piping is a process that requires a high level of attention to detail, and the following are the key details that need to be paid attention to during the installation process:
1. Preparation of materials
Pipe materials: Ensure that the pipe materials used meet the requirements of relevant standards and specifications, and have sufficient strength and low temperature resistance. Pipeline materials should undergo strict quality testing to ensure their reliable quality.
Anti-corrosion and insulation materials: Select anti-corrosion and insulation materials that meet the requirements to ensure the corrosion resistance and thermal insulation performance of the pipeline. These materials should have good resistance to low temperatures and be used correctly during installation.
2. Preparation for construction
Survey and survey: Before the pipeline is installed, the construction site is surveyed and measured to ensure the accuracy and safety of the installation. This includes checking the load-bearing capacity of the foundation, determining the direction and height of the pipeline, etc.
Safety protection measures: safety protection measures should be taken at the construction site, including but not limited to safety fences, protective nets, portable fire-fighting equipment, etc. These measures should comply with relevant safety regulations to ensure safety during construction.
3.Safety training
Construction personnel should receive corresponding safety training to understand the characteristics and safety requirements of cryogenic pipelines. They should be familiar with the installation process, safety operation procedures and emergency treatment methods of cryogenic pipelines.
Third, the construction process
Pipeline laying: Laying pipelines in accordance with construction drawings and related specifications to ensure the accurate location and height of pipelines. During the laying process, attention should be paid to the straightness and slope of the pipe to avoid excessive elbows and unnecessary resistance.
Pipe connection: adopt appropriate connection methods, such as welding, threaded connection, etc. Welding should comply with relevant codes and standards and undergo non-destructive testing to ensure the quality of the weld. In the process of connection, attention should be paid to the counterpart clearance, the amount of misalignment and the welding quality of the pipeline.
Anti-corrosion and insulation: Carry out anti-corrosion and thermal insulation of pipelines in accordance with relevant requirements. The anti-corrosion coating should be uniform, without leakage and blistering; The insulation layer should be tight, free of gaps and falling off. These measures help to improve the corrosion resistance and thermal insulation performance of the pipeline.
4, acceptance and trial operation
Acceptance work: After the installation of the cryogenic pipeline is completed, a comprehensive acceptance work should be carried out. This includes visual inspection, dimensional inspection, weld inspection, and more. The acceptance process should be carried out in strict accordance with the relevant norms and standards to ensure the quality and safety of the pipeline.
Test run: The trial run of the pipeline should be carried out in accordance with the relevant norms and standards. During the trial operation, attention should be paid to the leakage and leakage of the pipeline, and the operation data of the pipeline should be recorded. If there is any problem, it should be dealt with and recorded in time to ensure the normal operation of the pipeline system.
5. Safety warning
Prevent low-temperature injuries: Workers should wear personal protective equipment that meets safety requirements, such as low-temperature protective clothing, gloves and goggles, etc. At the same time, prolonged contact with cryogenic pipes and equipment should be avoided to prevent cryogenic injuries.
Warning signs and warning lights: Appropriate warning signs and warning lights should be set up at the construction site to remind workers to pay attention to safety. These signs and luminaires should be clearly visible and comply with the relevant safety regulations.
Through the attention and implementation of the above details, the installation process of cryogenic pipes can be ensured to be safe, efficient and in compliance with relevant standards and specifications.
