Method and apparatus for desalinating and concentrating sea water, desalinated deep water and concentrated deep water

A method of concentrating sea water comprising steps of:

• injecting sea water into a decompression chamber;
• evaporating water in the sea water by heating the sea water in the decompression chamber by supplying steam at an atmospheric pressure superheated to a temperature equal to or higher than a boiling temperature by high-frequency heating to a steam chamber formed around the decompression chamber with a heat conducting wall interposed therebetween;
• and
• obtaining the concentrated sea water remaining in the decompression chamber, and further comprising:
• a step of obtaining the steam by spraying air, which passes through a high-frequency coil, with water.

A method of concentrating sea water comprising steps of:

• injecting sea water into a decompression chamber;
• evaporating water in the sea water by heating the sea water in the decompression chamber by supplying steam at an atmospheric pressure superheated to a temperature equal to or higher than a boiling temperature by high-frequency heating to a steam chamber formed around the decompression chamber with a heat conducting wall interposed therebetween;
• and
• obtaining the concentrated sea water remaining in the decompression chamber, and further comprising:
• a step of obtaining the steam by passing saturated steam, which is produced by a boiler, through a steam pipe wound with a high-frequency coil.

A method of desalinating sea water comprising steps of:

• injecting sea water into a decompression chamber;
• evaporating water in the sea water by heating the sea water in the decompression chamber by supplying steam at an atmospheric pressure superheated to a temperature equal to or higher than a boiling temperature by high-frequency heating to a steam chamber formed around the decompression chamber with a heat conducting wall interposed therebetween;
• obtaining concentrated sea water remaining in the decompression chamber;
• and
• obtaining salt by further evaporating water in the concentrated sea water.

A method of desalinating sea water comprising steps of:

• injecting sea water into a decompression chamber;
• evaporating water in the sea water by heating the sea water in the decompression chamber by supplying steam at an atmospheric pressure superheated to a temperature equal to or higher than a boiling temperature by high-frequency heating to a steam chamber formed around the decompression chamber with a heat conducting wall interposed therebetween;
• and
• obtaining fresh water by condensing the evaporated water, the method further comprising:
• a step of obtaining the steam by passing saturated steam, which is produced by a boiler, through a steam pipe wound with a high-frequency coil.

An apparatus for concentrating sea water comprising:

• a decompression chamber;
• a steam chamber provided around the decompression chamber;
• a heat conducting wall which divides the decompression chamber and the steam chamber;
• a sea water injection section which injects sea water into the decompression chamber;
• a vacuum-suction section which vacuum-sucks the decompression chamber;
• a high-frequency heater having a high-frequency coil for obtaining steam by spraying air, which passes through the high frequency coil, with water;
• a supplying section which supplies the steam at an atmospheric pressure superheated to a temperature equal to or higher than a boiling temperature by high-frequency heating, by the high-frequency heater, to the steam chamber;
• and
• a discharging section which discharges the superheated steam from the steam chamber.

An apparatus for desalinating sea water comprising:

• a decompression chamber;
• a steam chamber provided around the decompression chamber;
• a heat conducting wall which divides the decompression chamber and the steam chamber;
• a sea water injection section which injects sea water into the decompression chamber;
• a vacuum-suction section which vacuum-sucks the decompression chamber;
• a high-frequency heater having a high-frequency coil for obtaining steam by spraying air, which passes through the high frequency coil, with water;
• a supplying section which supplies the steam at an atmospheric pressure superheated to a temperature equal to or higher than a boiling temperature by high-frequency heating, by the high-frequency heater, to the steam chamber;
• a discharging section which discharges the superheated steam from the steam chamber;
• and
• a condenser connected to the vacuum-suction section through a vacuum pump.