Energy-driven in-situ plankton collecting device

A new energy-driven in-situ plankton collecting device, comprising a solar photovoltaic cell and wind power generation system, a buoyancy support system, a power supply and control system, a plankton suction and collection system, and an anchoring system, wherein the solar photovoltaic cell and wind power generation system is arranged above the buoyancy support system and provides power supply for the battery of the power supply and control system by using solar energy and wind power;

• the buoyancy support system is composed of floating balls and connecting pieces and provides buoyancy support for the whole device, and the buoyancy support system is connected with the anchoring system to keep the device vertically floating in the designated area of the water body with the center of gravity below the water surface and to ensure that the height of the solar photovoltaic cell and wind power generation system above the water surface is more than 1.2 times the maximum wave height of the water area;
• and the power supply and control system is connected with the plankton suction and collection system, and the plankton suction and collection system is fixed on the buoyancy support system, arranged below the water surface and above the anchoring system and composed of a plankton suction axial-flow pump and a collecting cod end which are connected by elastic buckles;
• the plankton suction axial-flow pump is driven by a variable frequency motor and is provided with steady power supply by the battery;
• and caliber of inlet end of the plankton suction axial-flow pump gradually becomes smaller along the water flow suction direction and the inlet end always faces the direction of the natural water flow;
• the collecting cod end has a bag shape with a small mouth and a large belly, the mouth is a rigid ring that cannot be deformed, and the structures of both sides of the collecting cod end are the same for double-sided use;
• an annular groove is arranged on the periphery of the outlet end of the plankton suction axial-flow pump, radial elastic buckles with outward elasticity direction are uniformly arranged on the outer side of the groove, and gripping or loosening the circle of elastic buckles can reduce or restore the diameter of the annular groove on the outlet end of the axial-flow pump for installing or removing the collecting cod end;
• the annular groove on the outlet end of the axial-flow pump can be closely sheathed and connected with the rigid ring mouth of the collecting cod end;
• a flow rate sensor and an alarm device are arranged in the plankton suction axial-flow pump;
• the initial suction water flow rate of the axial-flow pump is set to be more than 1.2 times the maximum average escape movement speed of plankton to be collected;
• and when the suction water flow rate of the axial-flow pump drops below the maximum average escape movement speed of plankton to be collected, the alarm device gives an alarm reminder to replace the collecting cod end.