【Major Equipment in the Chemical Engineering Sector】Successful low-temperature testing of Shanghai Lanhun IMO Type B LNG simulation chamber from 2055 to 2022

The simulation chamber of Shanghai Blue Soul is made of aluminum alloy 5083-O, with a volume of 60 cubic meters. It replicates the shape of the fuel tank on a container ship on a scale that is proportional to the actual one, thereby allowing the construction of this simulation chamber to encompass virtually all the steps involved in building the actual product – including part processing, sectional construction, construction of transitional structures, installation of supports, insulation work, installation of secondary shielding, welding of components that pass through the chamber, as well as the installation and testing of pipelines and equipment. After passing the structural integrity inspection, the simulation chamber successfully completed the airtightness test and the moisture combined test on January 24. This cryogenic test used liquid nitrogen as the cooling source to conduct a complete cryogenic test. After the inerting of the main shielding and insulation spaces was completed, the tank was cooled; once the temperature in the cold zone reached the design requirements, it was kept at that temperature for a period of time before a leakage simulation test was conducted. Throughout the entire test, the tank and the insulation performed well, with all parameters remaining within normal ranges and no abnormalities observed. The leakage pathways are unobstructed, the airtightness is excellent, and the detection system is sensitive; all these meet the expectations of the tests and fully satisfy the design standards. Various classification societies provided on-site guidance and supervision during the testing process, and gave high praise to the test results. Following low-temperature testing, all functions of the core low-temperature cargo containment system in Type B compartments are intact and effective; the primary shielding capability, insulation arrangement, leakage pathways, and secondary shielding all meet the requirements of the IGC regulations. The IMO Class B hull developed by Shanghai Lan Hun is made of aluminum alloy; through optimized design, its weight and cost as part of the enclosure system are reduced. The use of the state-of-the-art friction stir welding technique ensures an efficient construction process, thereby improving both construction efficiency and quality. The success of this low-temperature test indicates that Shanghai Lan Hun has mastered the key design and construction techniques for IMO Class B tanks, laying a solid foundation for the subsequent design and construction of actual vessels. It also demonstrates the spirit of courage to break new ground, innovation, perseverance, and continuous effort among the people at Lan Hun.

【Major Chemical Equipment in a Major Country】October 2022 Series Summary Post https://bbs.hcbbs.com/thread-3552977-1-1.html (Source: Haichuan Network – Chemical Currents)