China's unmanned submersible has the first "national passport"

On June 4th, he issued the “Qianlong No. 2” classification certificate for the Shenyang Institute of Automation, Chinese Academy of Sciences. “Qianlong No.2” became the first unmanned submersible in China to obtain CCS classification certificate. This not only indicates that the design and manufacture of unmanned submersibles in China has entered the international advanced ranks, but also means that the submersible has “ Passing abroad passport, can successfully participate in international bidding and undertake international business.

According to Zhu Wei, vice president of China Classification Society, in accordance with relevant norms and standards, China Classification Society has carried out drawing approval and classification inspection of “Qianlong No. 2”, confirming that the submersible fully meets the requirements of China Classification Society.

"Qianlong No.2" is a 4,500-meter autonomous underwater robot independently developed by China. It is one of the topics of the "12th Five-Year" National 863 Program Deep Sea Submersible Technology and Equipment Project, organized by China Ocean Mineral Resources Research and Development Association. Implementation, Shenyang Institute of Automation, Chinese Academy of Sciences as the overall unit of technology, and the Second Ocean Research Institute of the State Oceanic Administration and other units jointly developed. This is a practical deep-sea detection system integrating hydrothermal anomaly detection, micro-topography detection, underwater photography and magnetic detection. It is mainly used in the exploration of deep-sea mineral resources such as polymetallic sulphides.

In December last year, "Qianlong No. 2" took the "Xiangyanghong No. 10" scientific research ship to the Southwest Indian Ocean to participate in the 40th voyage examination of the Chinese Ocean. In January this year, it passed the on-site acceptance of the offshore test site acceptance expert group, marking China. In the use of AUV (autonomous underwater submersible) for seabed sulfide investigations into the international advanced. In the experimental application of the second segment ending in March, a number of key technologies of “Qianlong No. 2” were verified again, which provided a solid technical foundation and guarantee for the investigation of mineral resources such as polymetallic sulphides in China.

It can slow down the reaction, maintain chemical balance, reduce surface tension, prevent light, thermal decomposition or oxidative decomposition. it mainly includes lead salts, metal soaps, organic tin, organic antimony, organic rare earths, pure organic compounds. Thermal stabilizers commonly used in industry mainly include lead salts, metal soaps, organic tin, organic antimony, organic rare earths, pure organic compounds, etc.