Large scale insulated desalination system

1. A method for substantially increasing the efficiency of the distillation of ocean and brackish water by continuously reusing heat energy to reduce overall energy requirements, comprising the steps of:

a. installing a second wall around a desalination system comprised of basic assemblies including an evaporation chamber, a vapor transfer assembly, and a condensing chamber;

b. maintaining a low partial vacuum in the space between the second wall and the basic assemblies;

c. partially or totally filling the space between the second wall and the basic assemblies with an insulation material for structural support;

d. feeding heated input sea water into the evaporation chamber through a plurality of spray nozzles, wherein the heated input sea water comes from an external water heater source;

e. transforming the heated input sea water into droplet-mist that flash vaporize into a density-saturated vapor through use of the plurality of spray nozzles;

f. maintaining the evaporation chamber under partial vacuum, generated by a vacuum pump assembly, so that the pressure in the evaporation chamber is well below the saturation vapor pressure over the range of input water temperature;

g. removing solids that remain from the droplet-mist that flash vaporize in the evaporation chamber and fall and collect at the bottom of the evaporation chamber;

h. preventing the fine droplet-mist from entering the vapor transfer assembly by way of a demister;

i. transferring the density-saturated vapor between the evaporation chamber to the vacuum pump assembly by way of the vapor transfer assembly, wherein the density-saturated vapor is drawn through the demister by the vacuum pump assembly;

j. transforming the density-saturated vapor into a vapor-liquid state and moving the vapor-liquid into a heat exchanger by mounting the condensing chamber below the vacuum pump assembly so that the discharge output of the vacuum pump assembly provides a pressure increase within the condensing chamber that forces the density-saturated vapor into a vapor-liquid state and further forces it into heat exchanger;

k. condensing the liquid-vapor into pure liquid water by continually cooling the heat-exchanger with intake sea water that is distributed by a ratio valve through an intake channel into a heat-exchanger port; and

l. transferring the intake sea water, now heated by the heat-of-condensation of vapor-liquid, from a heat-exchanger exit through a vacuum insulated channel to the external water heater source to be fed back into the evaporation chamber,

m. distributing intake sea water from the ratio valve through a first bottom chamber port into cooling coils to cool the solids that collect at the bottom of the evacuation chamber; and

n. transferring the intake sea water, now heated by the solids, from the cooling coils to the external water heater source by way of a second bottom chamber port and a vacuum insulated channel leading to the external water heater source.

2. The method of claim 1 , wherein the ratio valve adjusts the intake sea water flow rate through the cooling coils to ensure minimum heat loss and maximum heat recovery.

3. The method of claim 1 , wherein the ratio valve adjusts the intake sea water flow rate through the heat-exchanger to ensure minimum heat loss and maximum heat recovery.

4. The method of claim 1 , wherein ambient sea water is heated at least in part by solar energy to create the heated input sea water.