Self-holding underwater section buoy of using multiple sources of energy, and drive method

Abstract

An under water self-holding sectional buoy with combined energy source is composed of external bag, internal bag, electromagnetic valve, hydraulic plunger pump, proton exchange membrane fuel cell (PEMFC), DC servo motor, casing, and a sealed cvity consisting of sealing bottom plate, working chamber of heat machine, cooling chamber of heat machine, cooling chamber of PEMFC, and bossing. The combined thermal and electric supply system of PEMFC is used for the temp difference drive in deep sea and electric drive in shallow sea.

Description

technical field [0001] The invention relates to an instrument for measuring water area profile parameters, in particular to a novel self-sustaining underwater profile buoy using a combined heat and power system of a proton exchange membrane fuel cell as a comprehensive power source. Background technique [0002] The self-sustaining underwater profiling buoy is a new type of underwater monitoring equipment that performs profile movement by changing its own buoyancy. It can carry various sensors for large-scale and long-term marine parameter measurement, and can regularly send the obtained data back to the base station through satellites, so it has become an important tool for marine environment monitoring. At present, a variety of self-sustaining underwater profiling buoys have been successfully developed abroad, such as the self-sustaining Lagrangian automatic circulation profiling buoy ALACE jointly developed and developed by Webb Research, Falmoth Scientific Company of the...

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Problems solved by technology

[0003] The present invention aims to solve the problems that the buoyancy drive system of the self-sustaining underwater profile buoy in the prior art is limited by the battery capacity in terms of sailing time and distance, the "air lock" failure of the plug pump in the system, low battery power density, and high cost The problem is to provide a self-sustaining underwater profiling buoy with composite energy, which uses a proton exchange membrane fuel cell (hereinafter referred to as PEMFC) as a comprehensive power source for the self-sustaining underwater profiling buoy, so that it can provide electrical energy through PEMFC Drive the hydraulic plunger pump to realize the electric drive profile movement mode in the offshore, and also use the PEMFC combined heat and power system to supply the heat generated by the PEMFC to the thermoelectric heat engine by adding waste heat recovery equipment while the PEMFC provides electrical energy for the electrical appliances in the buoy. , relying on the waste heat of PEMFC to drive the buoy to realize the temperature difference working mode, which not only improves the utilization rate of PEMFC fuel, but also improves the working performance of the thermoelectric heat engine because the temperature of the waste heat of PEMFC is higher than the natural surface water temperature. It fundamentally solves the restriction of the limited working sea area of ​​the self-sustaining underwater profiling buoy

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