Multi-effect solar distiller with multiple heat sources

Patent metadata

Field	Value
Publication number	US-9884265-B2
Application number	US-201314408376-A
Country	US
Kind code	B2
Filing date	Apr 17, 2013
Priority date	Jun 18, 2012
Publication date	Feb 6, 2018
Grant date	Feb 6, 2018

Abstract

The present invention relates to an multi-effect solar distiller with multiple heat sources. More particularly, the present invention relates to an multi-effect solar distiller with multiple heat sources capable of evaporating and distilling sea water using the solar thermal energy, evaporating the sea water using waste heat generated from a power generation facility in addition to the solar thermal energy, evaporating and distilling the sea water even by condensation heat generated at the time of condensing steam, and using a plurality of absorption reflectors to allow non-used sunlight to maximally evaporate the sea water by being reflected from the sea water surface.

First claim

The invention claimed is:

1. A multi-effect solar distiller, comprising:
a solar thermal energy still part configured to evaporate sea water using solar thermal energy as a heat source to collect condensed fresh water;
a plurality of absorption reflectors configured to be installed within the solar thermal energy still part to absorb and reflect solar thermal energy; and
a multi-effect distillation part configured to condense steam generated from the solar thermal energy still part to collect fresh water and evaporate the sea water using condensation latent heat of the steam as a heat source to collect the fresh water,
wherein the solar thermal energy still part includes a sea water storage tank for storing the sea water,
the plurality of absorption reflectors are installed within the sea water storage tank, and each of the plurality of absorption reflectors has one end protruding over a sea water surface,
the one end of each of the plurality of absorption reflectors is bent to form a predetermined angle with respect to the sea water surface, and
each of the plurality of absorption reflectors has one surface corresponding to the sea water level absorbing heat of sunlight and the other surface reflecting sunlight toward the multi-effect distillation part.

2. The multi-effect solar distiller of claim 1 , wherein
the solar thermal energy still part
further includes a tube configured to be installed within the sea water storage tank to use waste heat so as to evaporate the sea water and have exhaust gas flowing therein.

3. The multi-effect solar distiller of claim 2 , wherein
the each of the plurality of absorption reflectors is coupled with one side of the tube.

4. The multi-effect solar distiller of claim 3 , wherein
the each of the plurality of absorption reflectors has a plate shape.

5. The multi-effect solar distiller of claim 1 , wherein
a bend angle formed by the one end of each of the plurality of absorption reflectors is controlled.

6. The multi-effect solar distiller of claim 1 , wherein
each of the plurality of absorption reflectors has a different length.

7. The multi-effect solar distiller of claim 1 , wherein
the multi-effect distillation part has a plurality of effect stages which are disposed to be spaced apart from each other, and
each of the plurality of effect stages includes:
a plate configured to be provided with a sea water pocket of which one surface of an upper side is filled with the sea water and a condensation water pocket of which one surface of a lower side collects condensation water; and
a wick configured to be attached to a rear surface of the plate to draw the sea water from the sea water pocket and cause the drawn sea water to flow.

Assignees

• Korea Inst Mach & Materials

Inventors

• Park Chang Dae
• Lim Byung Ju
• Chung Kyung Yul

Classifications

• C02F1/16

  using waste heat from other processes · CPC title

• C02F1/14 Primary

  using solar energy · CPC title

• B01D3/146 Primary

  Multiple effect distillation · CPC title

• C02F2103/08

  Seawater, e.g. for desalination · CPC title

• Y02W10/37

  using solar energy · CPC title