Recently, the “Twelfth Five-Year Plan†863 Program “Deep Sea Ultra-high Pressure Environment Simulation and Detection Device†in the marine technology field passed the project acceptance of the 863 Program Marine Area Organization. “Deep sea ultra-high pressure environment simulation and detection device†is one of the first projects initiated by the “863 Deep Sea Submersible Technology and Equipment†major project in the marine field. The goal is to develop the structure, materials, processing and testing process of large ultra-high pressure simulation devices. And the research of pressure control system, developed a deep sea ultra-high pressure environment simulation and detection system. After technical breakthroughs, the research team broke through the key technologies such as design and manufacture of pressure cylinder structure and ultra-high pressure large-diameter end face seal for large-diameter ultra-high pressure simulation experiments, and proposed the structural form of deep sea ultra-high pressure environment simulation and detection device, effectively solving the problem. The sealing requirements of large diameter and large opening under high pressure have realized the function of providing ultra-high pressure detection environment for deep submersible and deep sea equipment development. At the same time, through basic research and technical breakthroughs, we have broken through the key process technologies such as ultra-thickness forgings, ultra-thickness welding, ultra-thickness non-destructive testing and large-diameter super-thickness heat jackets, and have produced the deep sea ultra-high pressure with the largest effective internal diameter and the highest working pressure in China. Environmental simulation device. The development of “Deep Sea Ultra-high Pressure Environment Simulation and Detection Device†has provided a system pressure test environment for the “Zhenlong†manned submersible and “4500-meter series submersibleâ€, filling the domestic gap and providing deep sea ultra-high pressure for China in the future. The development of pressure environment simulation devices provides important technical support.
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