Research on the application of watertight connector components in submersibles

The watertight connector and the watertight cable constitute the watertight connector assembly, which is the key node of underwater power supply and communication, and also the bottleneck restricting the research and development of deep-sea equipment. This paper briefly describes the development status of watertight connectors, introduces the underwater power supply and signaling requirements of manned submersibles, systematically sorts out the test experience and application of watertight connector components, and focuses on the analysis of failure causes during online performance testing and simulated pressure testing. Also get the qualitative and quantitative results of the watertight connector components affected by the complex marine environment and seawater circulation pressure, and provide data analysis and technical support for the reliable application and independent research and development of watertight connector components.

The increase in the diving depth, endurance time and load performance of the manned submersible has brought new challenges to data transmission and energy supply, especially some manned submersible will be applied to the extreme high pressure of the Maliana Trench surroundings. Watertight connectors and watertight cable assemblies, as the key nodes of underwater power supply and communication, play the role of penetrating the pressure-resistant housing, connecting electronic devices and operating equipment, and separating photoelectric signals. They are the “joints” of underwater power supply and communication, and the “bottleneck” restricting marine scientific research, marine resource development and marine rights protection.
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1. Development of watertight connectors
In the 1950s, watertight connectors start to be studied, which were initially used in military applications such as submarines. Serialized and standardized shelf products have been formed, which can meet the requirements of different voltages, currents and depths. It has achieved certain research results in the fields of deep rubber body electrical, metal shell electrical and optical fiber in the whole sea, and has the ability of industrialization. Internationally renowned manufacturers are mainly concentrated in Europe, the United States and other traditional marine powers, such as the United States TE company (SEACON series), the United States Teledyne company (IMPULSE series), the United States BIRNS company, Denmark MacArtney company (SubConn series), Germany JOWO company and so on. These internationally renowned companies have complete product design, production, testing and maintenance capabilities. It has huge advantages in special materials, performance testing and applications.
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Since 2019, Frankstar Technology is engaged in providing marine equipment and relevant technical services. We focus on marine observation and ocean monitoring. Our expectation is to provide accurate and stable data for a better understanding of our fantastic ocean. We have cooperated with many well-known universities, institutes and research center to provide them with the most important equipment and data for marine scientific research and services. These universities and institutes are from China, Singapore, New Zealand, Malaysia, Australia and so on. Hope that our equipment and services can make their scientific research progress smoothly and make breakthroughs and provide reliable theoretical support for the entire ocean observation event. In their report, you can see us and some of our equipment. That is something to be proud of, and we will continue to do it, putting our effort on the development of human marine.


Post time: Aug-11-2022