# US 2021/0276885 A1 · Inflatable boat desalination system based on inflatable non-imaging solar concertrator

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- Number: US 2021/0276885 A1
- Document ID: US20210276885A1
- Status: Published application
- Kind: A1
- Application number: 16/873,279
- Filed: 2020-03-09
- Published: 2021-09-09
- Earliest claimed: 2020-03-09
- Inventors: Yonghua Wang
- Web page: https://patentgrep.com/patent/US20210276885A1

## CPC

- C02F 1/14: using solar energy
- B01D 1/0005: {Evaporating devices suitable for floating on water}
- B01D 1/0017: {Use of electrical or wave energy (B01D1/0029 takes precedence)}
- B01D 1/0035: {Solar energy (for treatment of water C02F1/14)}
- B01D 3/007: {Energy recuperation; Heat pumps}
- B01D 5/0066: {Dome shaped condensation}
- C02F 1/18: Transportable devices to obtain potable water
- C02F 2103/08: Seawater, e.g. for desalination
- C02F 2201/001: Build in apparatus for autonomous on board water supply and wastewater treatment (e.g. for aircrafts, cruiseships, oil drilling platforms, railway trains, space stations)
- C02F 2201/009: Apparatus with independent power supply, e.g. solar cells, windpower or fuel cells
- Y02A 20/124: Water desalination
- Y02A 20/142: Solar thermal; Photovoltaics
- Y02A 20/212: Solar-powered wastewater sewage treatment, e.g. spray evaporation
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

## Abstract

A portable floating sea water desalination system is presented to realize ultra-high efficiency and extremely low cost water purification. The disclosed system comprises an inflatable non-imaging solar concentrator based compact desalinator subsystem, a photovoltaic powered distillation subsystem, and an inflatable rubber boat system. The inflatable non-imaging solar concentrator concentrates both beam light and diffuse light into an envelope type evaporator to evaporate the brine water to realize extremely low cost. A nano materials absorber is incorporated into the evaporator to realize ultra-high efficiency. A portion of the heated brine water contained in the evaporator is circulated to the photovoltaic powered distillation subsystem for further evaporation. Both of the subsystems above are mounted on the inflatable rubber boat subsystem for portability.

## Claims

### Claim 1

An inflatable non-imaging solar concentrator based water desalination system, comprising:
a. an inflatable non-imaging solar concentrator based compact desalinator subsystem;
b. a photovoltaic powered water distillation subsystem;
c. an inflatable rubber boat subsystem;
wherein, the inflatable non-imaging solar concentrator based compact desalinator subsystem heats up the brine water feed in the subsystem and evaporate a portion of the brine water, then transports the rest of the heated brine water to the photovoltaic powered water distillation subsystem for further evaporation, both of the two subsystems are mounted onto the inflatable rubber boat subsystem to form a portable floating system.

### Claim 2 (depends on 1)

The inflatable non-imaging solar concentrator based compact desalinator subsystem of claim 1 consists of an inflatable non-imaging solar concentrator, an envelope type evaporator, and circulation pipes.

### Claim 3 (depends on 2)

The envelope type evaporator of claim 2 contains a nano materials absorber.

### Claim 4

The photovoltaic powered water distillation subsystem consists of a photovoltaic panel array, a battery storage, a thermal storage, and a water distillation system.

### Claim 5 (depends on 4)

The thermal storage of claim 4 has an electric heater.

### Claim 6 (depends on 4)

The water distillation system of claim 4 has an electric heater.