Nano check valve osmosis and energy collection method and device

A nano check valve osmosis and energy collection method, comprising:

• placing two semipermeable membranes into a U-shaped tube, filling a solution into the U-shaped tube and between the two semipermeable membranes, and filling a solvent into the U-shaped tube and outside the two semipermeable membranes;
• and
• applying an energy field to the solution to regulate a distribution of solute particles in the solution to make concentrations of the solution at interfaces of the two semipermeable membranes different, thereby resulting in different osmotic pressures of the solution at the two semipermeable membranes, further making the solvent outside the two semipermeable membranes permeate into the solution to make an internal pressure of the solution increase to exceed the osmotic pressure of one with a low concentration of the two semipermeable membranes, and causing the solution to undergo reverse osmosis on the one with the low concentration of the two semipermeable membranes;
• wherein the solvent achieves unidirectional flow sequentially through osmosis of one with a high osmotic pressure of the two semipermeable membranes, the solution, and the reverse osmosis of one with a low osmotic pressure of the two semipermeable membranes;
• the solvent with the unidirectional flowing forms liquid level potential energy or liquid flow kinetic energy for energy storage or power generation;
• wherein when the energy field is an electrostatic field and the solution comprises charged ions, an effect of the electric field causes concentrations of the charged ions to change at the two semipermeable membranes, resulting in different concentrations of the solution at the interfaces of the two semipermeable membranes;
• or, when the energy field is a magnetic field and the solution is a liquid containing diamagnetic nanoparticles, an effect of the magnetic field causes different concentrations of the diamagnetic nanoparticles at the interfaces of the two semipermeable membranes;
• or, when the energy field is a gravity field, the solution is a liquid containing nanoparticles, a combined effect of gravity and buoyancy causes a concentration of the nanoparticles in the liquid to increase at one of the two semipermeable membranes, resulting in different concentrations of the solution at the interfaces of the two semipermeable membranes.