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Type 7103 deep submersible lifeboat

In view of the frequent occurrence of submarine accidents in the United States and the Soviet Union in the 1960s, the two superpowers began to study the rescue of deep-dive submarines in order to rescue the crew on the submarine. In order to keep up with the pace of the world, China began to develop deep-dive rescue technology in the 1970s. And has successfully developed 7103 boats (without cables), I-type life-saving bells (with cable), QSZ single-person atmospheric submersibles (with cables), 8A4 underwater robots ROV (with cables) No one) and HR-01ROV, RECONIVROV and CR-01A6000m underwater robot AUV (no cable).

In 1971, China began to develop deep-dive lifeboats. In 1986, the "7103" deep-dive lifeboat was successfully tested. Currently, this type of deep submersible lifeboat has been retired. At the end of 2008, China introduced the LR-7 deep-dive lifeboat from the United Kingdom, which became the main active equipment for the Chinese Navy to support submarine rescue.

the "lifesaving bell" and "single atmospheric pressure submersible" are not China's main deep dive rescue devices. In fact, China began the development of deep-dive life-saving devices in 1971, codenamed 7103. At that time, it was jointly developed by Harbin Engineering University, Shanghai Jiaotong University, Huazhong University of Technology and Wuchang Shipyard. The boat was built at the Wuchang Shipyard in 1976 and the sea test was successful in 1986. The boat is 14.88 meters long, 2.6 meters wide and 4 meters high. The displacement is about 30 tons and the speed is four knots. The boat has a depth of about 300 meters and can rescue 22 crew members at a time. Its successful development has made China's aid and submersible rescue level rank among the world's advanced levels.

Deep-dive lifeboats are usually stored at the dock for standby, and are carried on a large-scale integrated submarine rescue boat when performing submersible rescue missions. The ship is known as the "mother ship" of the deep-dive lifeboat. It is mainly responsible for the hoisting and recovery of deep-dive lifeboats, and has the functions of supplying power, supplying air, supplying pressure and transferring the rescue crew to the pressurized cabin.

Type 7103 deep dive rescue device Type 7103 deep dive rescue device Type 7103 deep dive rescue device Type 7103 deep dive rescue device

Zhu Jiyu

Zhu Jiyu served as the chief designer of the 7103 deep dive lifeboat project. Born in 1937, Shaoxing, Zhejiang, he was a professor of Shanghai Jiaotong University. In 1959, he graduated from the Shipbuilding Department of Shanghai Jiaotong University. After long-term stay in school to teach. He became the director of the Institute of Underwater Engineering of Shanghai Jiaotong University, deputy director of the Institute of Ship and Ocean Engineering, professor, and doctoral tutor. From 1982 to 1983, he was promoted to be a research professor at the GKSS Research Center in West Germany.

One of the earliest experts engaged in deep-dive technology research in China, participated in the performance research of China's first nuclear submarine in the 1960s; in the early 1970s, he was the chief designer of the first deep-dive lifeboat in China, and completed the development of the boat in 1986 and successfully realized it.

In 1971, Zhu Jiyu was appointed as the chief designer of the deep dive lifeboat. The concept of a deep submersible lifeboat originated from a major submarine accident in the United States. Therefore, American scientists have proposed to develop a deep-dive lifeboat to rescue people in the submarine. The biggest difficulty with this technology is that deep-dive lifeboats need to dock with submarines deep in the ocean. Under the background of foreign technology blockade, this project was independently researched and developed by researchers from Harbin Military Engineering, Shanghai Jiaotong University, Wuchang Shipyard and other units for 15 years. In fact, it took the American scientists about the development of this equipment for about 15 years.

In 1986, the docking test was carried out at a depth of more than 40 meters in the South China Sea. The troops participating in the test initially hesitated because it was very dangerous to let the submarine "squat" on the seabed. It is very likely that it would not come up, but Zhu Jiyu used "scientific confidence." "Convince them." Zhu Jiyu took the lead and dive to the bottom of the sea by the submarine. Eventually, the deep-dive lifeboat and the submarine successfully docked. As a result, China became the second country in the world to realize the successful docking of two submarines underwater after the United States. The underwater docking of two submarines, dry transfer of 7 crew members, won the first prize of National Science and Technology Progress Award in 1989.

In the 1980s, independently or domestic with foreign cooperation, his team completed the development of seven models of unmanned remote-controlled submersibles, breaking the international monopoly; in the 1990s. He presided over the development of the MG-1 submarine cable burying system, and completed the burial of 90 km on the Chinese side of the Sino-Japanese submarine cable. He presided over the development of the 6000-meter deep-sea tow observation system, which made an important contribution to the selection of deep-sea mining areas in China. The project won the first prize of Science and Technology Progress Award of the Ministry of Education in 1999 and the second prize of National Science and Technology Progress Award in 2000.

The 3,500-meter "Hailong" ROV (Unmanned Cable Control Submersible) was independently researched and developed by the research team led by Professor Zhu Jiyu of Shanghai Jiaotong University.. In 2011, with the "Ocean No. 1" ship executed a voyage survey mission that completed the first and second voyage missions and achieved fruitful results - the completion of the exploration of the new South Atlantic sulphide zone. This marked the entry of China's ocean science test into the robot era. The "Hailong" ROV is the underwater robot with the deepest dive depth and the strongest working ability in China, and its technology is also at the leading level in the world.



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Page last modified: 05-09-2019 18:50:11 ZULU