US 12,630,445 B2Granted

Water desalination device and method

Assignee77 Vision Way Ltd

InventorsGianpaolo Trivelli, Gianluigi Trivelli, Mauro Gazzelli, Claudio Raggi

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Abstract

A water desalination device, comprising: a body having a lateral wall and defining a cavity for the desalination of water, wherein in said cavity are defined a desalination chamber and a condensation chamber, wherein the condensation chamber comprises a collection portion for desalinated water, a heater, configured to heat the water to desalinate in order to produce a steam, a cooler, configured to determine a condensation of a steam deriving from the heating of the water, wherein the heater comprises a duct within which flows seawater at a first temperature (T1), the cooler comprises a duct within which flows seawater at a second temperature (T2), wherein said water desalination device is configured to maintain a pressure lower with respect to the atmospheric one within said cavity, and is operatively connected with a vacuum pump connected with said cavity, said water desalination device comprising a first supply device configured to supply seawater at said first temperature (T1) into the duct of the heater, and a second supply device configured to supply seawater at said second temperature (T2) into the duct of the cooler.

Claims14

Dependent claims

A water desalination device, comprising:

a body having a lateral wall and defining a cavity suitable for allowing the desalination of an amount of water to desalinate, wherein in said cavity are defined a desalination chamber and a condensation chamber, wherein the condensation chamber comprises a collection portion destined to collect at least temporarily desalinated water,
at least a heater, configured to heat the amount of water to desalinate in the desalination chamber, in order to produce a steam,
a cooler, for condensation of a steam deriving from the heating of the water to desalinate,
wherein
the heater comprises a duct within which, in use, flows seawater at a first temperature,
the cooler comprises a duct within which, in use, flows seawater at a second temperature lower with respect to said first temperature,
wherein said water desalination device is configured to maintain a pressure lower with respect to the atmospheric one within said desalination chamber and within said condensation chamber, and is connected to, a vacuum pump acting on said cavity to create a predetermined vacuum within said cavity,
said water desalination device comprising at least a first supply device configured to supply seawater at said first temperature into the duct of the heater, and comprising a second supply device configured to supply seawater at said second temperature into the duct of the cooler;
said desalination device being configured to exploit the thermocline of the seawater;
said first depth and said second depth being substantially comprised in the range of thermocline of the seawater;
the device comprising an energy recovery device configured to generate electric power from the wave motion and/or due to height difference with respect to a sea floor;
the energy recovery device being operatively connected with, and supplying electric power to the first supply device.

9 more elements

A method for water desalination, comprising:

a creation of vacuum inside a cavity of a body of a water desalination device by means of a vacuum pump operatively connected with said cavity,
the introduction of a determined quantity of water to desalinate in said cavity, said cavity constituting a desalination chamber;
the heating of the water to desalinate through a heater comprising a duct, said heating comprising making seawater flow into said duct, wherein the heating comprises a supply within said heater of seawater withdrawn at a first temperature in such a way that the water to desalinate contained within said desalination chamber can evaporate forming a steam deriving from the heating of the water to desalinate, said supply taking place by means of a first supply device,
the condensation of the steam deriving from the heating of the water to desalinate through a cooling induced by a cooler comprising a duct within which is, in use, seawater is made flow, wherein the condensation comprises a supply within said cooler of seawater withdrawn at a second temperature lower than the first temperature, said supply taking place through a second supply device, said condensation determining a collection of desalinated water in a collection portion of desalinated water of the water desalination device;
the method comprising a power recovery from the wave motion and/or by difference of height with respect to a sea floor through an energy recovery device operatively connected with, and supplying electric power to, the first supply device.

2 more elements

Dependencies are inferred from the claim text.