Desalination system and desalination method

A desalination system comprising:

• a water tank;
• a water-repellent particle layer that is located below the water tank and contains a plurality of water-repellent particles;
• a plurality of particles forming a liquefying layer that is located below the water-repellent particle layer and liquefies water vapor that has passed through the water-repellent particle layer, to obtain fresh water;
• an introduction channel that supplies a liquid to the water tank;
• a liquid speed reduction part that is located on the introduction channel, and includes a wall surface crossing a flow direction of the liquid in the introduction channel, for reducing a flow speed of the liquid,
• wherein the water tank is connected with the introduction channel, and provided with a discharge channel through which the liquid is discharged partially, the discharge channel being located at a position opposed to the introduction channel with the water tank interposed between the introduction channel and the discharge channel, and
• the water-repellent particle layer has an inclined upper surface descending from the introduction channel toward the discharge channel with respect to a plane perpendicular to a gravitational direction.

A desalination method for obtaining fresh water from a liquid using a desalination system, the desalination system including:

• a water tank to which the liquid is introduced;
• a lid that is disposed on an opening of the water tank;
• a water-repellent particle layer that is located below the water tank and contains a plurality of water-repellent particles;
• a plurality of particles forming a liquefying layer that is located below the water-repellent particle layer;
• an introduction channel that introduces the liquid to the water tank;
• a liquid speed reduction part that is located on the introduction channel, and includes a wall surface crossing a flow direction of the liquid in the introduction channel, for reducing a flow speed of the liquid, and
• a pool tank located in the introduction channel between the water tank and the liquid speed reduction part, the pool tank having an opening that spans a channel width of the introduction channel, and a space in which the liquid introduced via the opening is accumulated and from which an overflow of the liquid is discharged to the introduction channel,
• the desalination method comprising:
• introducing the liquid via the introduction channel to the water tank and placing the liquid above the water-repellent particle layer;
• heating and evaporating the liquid placed above the water-repellent particle layer to obtain water vapor;
• and
• liquefying the water vapor by the liquefying layer to obtain the fresh water.

A desalination method for obtaining fresh water from a liquid using a desalination system, the desalination system including:

• a water tank to which the liquid is introduced;
• a lid that is disposed on an opening of the water tank;
• a water-repellent particle layer that is located below the water tank and contains a plurality of water-repellent particles;
• a plurality of particles forming a liquefying layer that is located below the water-repellent particle layer;
• an introduction channel that introduces the liquid to the water tank;
• and
• a liquid speed reduction part that is located on the introduction channel, and includes a wall surface crossing a flow direction of the liquid in the introduction channel, for reducing a flow speed of the liquid,
• wherein the water tank is connected with the introduction channel, and provided with a discharge channel through which the liquid is discharged partially, the discharge channel being located at a position opposed to the introduction channel with the water tank interposed between the introduction channel and the discharge channel, and
• the water-repellent particle layer has an inclined upper surface descending from the introduction channel toward the discharge channel with respect to a plane perpendicular to a gravitational direction, the desalination method comprising:
• introducing the liquid via the introduction channel to the water tank and placing the liquid above the water-repellent particle layer;
• heating and evaporating the liquid placed above the water-repellent particle layer to obtain water vapor;
• and
• liquefying the water vapor by the liquefying layer to obtain the fresh water.