The work of cryogenic piping systems involves a number of key aspects, including pipe routing operations, welding processes, corrosion protection and insulation, and pipe trenching methods.
First of all
during the routing operation, especially in the low temperature environment, special attention needs to be paid to the influence of rain and snow on the pipeline port. Therefore, it is very important to protect the sealing of the nozzles at both ends to avoid rain and snow in the pipeline. At the same time, the use of frozen soil blocks containing ice and snow should be avoided when making pipe piers.
Secondly
in terms of welding process, special attention needs to be paid to prevent welding cracks when welding pipes are carried out in a low-temperature environment. This can be achieved through rigorous selection of welding materials and optimization of the welding process, including control of parameters such as welding heat input, preheating temperature, interlayer temperature, and post-weld insulation.
In addition
anti-corrosion and thermal insulation work is also an important part of the low-temperature pipeline system. In order to effectively reduce the heat loss, the anti-corrosion work should be carried out in the windproof shelter, and the construction requirements of the pipeline anti-corrosion joint should be strictly followed.
Finally
in the pipeline ditching operation, in order to ensure the safety of the ditch, the periodic construction method is usually adopted in the low-temperature environment, and the corresponding anti-skid treatment needs to be done. When the temperature is extremely low, the ditching operation should be stopped.
To sum up
the work of cryogenic piping systems is a complex and delicate process that involves many aspects of technical requirements and operating specifications. Only by ensuring the strict implementation of these links can we ensure the safe, stable and efficient operation of the cryogenic piping system.
What are the application scenarios of cryogenic piping systems?
Cryogenic piping systems have a wide range of application scenarios, mainly covering chemical, refrigeration, liquefied natural gas and other industrial fields. In these areas, cryogenic piping systems are used to transport cryogenic media to meet the needs of cryogenic supply and storage in different fields.
Specifically, the transportation of cryogenic liquids such as liquid nitrogen, liquid hydrogen, and liquid oxygen often relies on cryogenic piping systems. These systems are widely used in liquid nitrogen output for liquid nitrogen tanks and dewars, for liquid replenishment for various cryogenic processors, and for liquid nitrogen cryogenic pipes with nozzles for liquid nitrogen cryogenic cutting systems. In addition, cryogenic pipes are often used for the delivery of liquid nitrogen in the whole cryogenic rehydration system.
In the chemical industry, cryogenic pipes also play an important role. Especially in cases where it is necessary to avoid freezing of pipes and solidification of liquids, the application of electric heat belts ensures a continuous flow of liquids. Similarly, in refrigerated, frozen, frozen food and other industries, the application of electric heat can prevent the cold storage medium from freezing in a low temperature environment and ensure the normal operation of the equipment.
In general, cryogenic piping systems play an increasingly important role in modern industrial production due to their unique conveying characteristics and environmental requirements. The application of these systems not only improves production efficiency, but also provides a strong guarantee for the safe production and stable operation of various industries.
