Deep-sea buoyancy adjusting system and method

Abstract

The invention provides a deep-sea buoyancy adjusting system and method, and aims to realize buoyancy adjustment of a deep-sea autonomous intelligent buoy along with buoyancy change of a deep sea withthe depth of 0-6000 meters. The high-pressure buoyancy adjusting system is mainly provided with a high-pressure plunger pump, the high-pressure plunger pump is driven by a direct-current motor, so that hydraulic oil in an inner oil bag is pumped into an outer oil bag, total displacement volume of the system is increased, an oil discharging stage is completed, a solenoid gas valve is started, an outer gas bag, an inner gas cavity and a glass floating ball compressive cabin are communicated, a ball valve is started, the outer oil bag is communicated with the inner oil bag, the hydraulic oil in the outer oil bag and gas in the outer air bag are pressured into the glass floating ball compressive cabin by the aid of inside and outside differential pressure of the vacuum environment in the glassfloating ball compressive cabin and outer sea water pressure, and an oil returning stage is completed. The deep-sea buoyancy adjusting system serves as a main driving unit of section movement buoyancy change of the autonomous intelligent section buoy and has high-pressure buoyancy adjusting ability, the volume of the system is changed, effective density is changed, and the buoyancy of the buoy isadjusted.

Description

technical field [0001] The present disclosure relates to the field of hydraulic technology, in particular to a deep-sea buoyancy adjustment system and a method thereof. Background technique [0002] The deep-sea self-sustaining profile smart buoy is also called Argo buoy. The main feature of this buoy is that it is easy to carry. Once deployed, it will continue to operate automatically without human maintenance. It can drift freely in the ocean and automatically profile the seawater temperature, salinity and depth of the ocean subsurface between the sea surface and the water depth of 6000 meters. [0003] Among the deep-sea intelligent profiling buoys of the global Argo real-time ocean observation network currently in operation, the deep-sea 6000-meter APEX buoy developed by the American Webb company and the deep-sea 4000-meter ARVOR buoy developed by the French company Martec are two representative deep-sea buoys. The number of smart buoys is the largest. The deep-sea 600...

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Problems solved by technology

However, this design method also has corresponding problems. On the one hand, the air lock problem caused by the insufficient oil absorption capacity of the high-pressure plunger pump affects the oil discharge capacity of the inner oil bag and the working efficiency of the system; on the other hand, the use of double springs and The mechanical method of combining the rolling diaphragm needs to be customized according to the oil discharge pressure, which increases the production cost of the buoy prototype, and the spring and the rolling diaphragm itself have a low service life due to the frequent oil discharge work of the buoy

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