Structure Analysis And Reinforcement Research On High-temperature-pressure Biological Cultivation Vessel With Observation Window

In the 21st century, mankind will enter the ocean economy era. The deep-sea development not only for marine organisms, microbes, marine mineral and other resource development is essential, but also for the Earth's geological structure and motion studies are necessary. In the deep-sea hydrothermal environment and simulation study of biological activity, the importance of supporting technology is no substitute. Through the development of extreme environment simulation system, important technical bottlenecks in the field of our deep-sea organisms and their genetic resources research & development will be resolved. New parts and components with international advanced level will be developed for deep-sea extreme environmental conditions, such as control valves, sensors, cultivating vessel, on-line inspection devices. Self-development capacity and basic industrial capacity in this area of our country will be promoted. At the same time, the capacity of China's developing major equipments for extreme environment will be enhanced. Also, from the components development to the systems development, the original innovation will be accumulated.For the design of the cultivating vessel must have the following features: the ability to withstand extreme environments of high temperature (0～400℃) high-voltage (0～60MPa); Operation of convenient, fast turning function; sealed safe and reliable. The thesis has developed two key technologies of cultivating vessel conducted in-depth study with ANSYS finite element analysis.First, the contact pressure distribution of the supporting ring structure was researched and analyzed; triangular distribution of contact stress distribution is more realistic conclusions. On this basis, based on the criteria of equal strength quasi-analysis and design methods, supporting ring structure was optimized, so that all parts of the stress distribution of cylinder is more reasonable and margin of safety are consistent. In ensuring safety and reliability of cultivating vessel, the cost of design and manufacturing was reduced.Then, taking respectively circular opening reinforcement structure and a long oval opening reinforcement structure as the research object to study the cylindrical pressure vessels of different methods of stress distribution and the hole stress concentration problem, drawing some reference value conclusions, and the using in open-cell structure design of microbial cultivation, better application effects was got.Finally, selecting the single reactor system for the simulation platform, in order to expand system performance for further analysis and study, the performance simulation of the deep-sea extreme environments system was analyzed and researched. And the deep-sea extreme environments simulation system integration and commissioning work were completed to examine a variety of system performance, fully meting the requirements of the subject.