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Solar stills

A technology of solar stills and solar energy, applied in the field of solar stills, which can solve the problems of expensive solar stills

Inactive Publication Date: 2011-04-13
FIRST GREEN PARK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For reasonably large-scale production of clean fresh water, solar stills are often a very expensive option despite using relatively free energy

Method used

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Examples

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Embodiment Construction

[0029] refer to figure 1 and 2 A solar still module 10 according to a preferred embodiment of the present invention has a substantially rectangular peripheral support frame 11 with longer side edge elements 12 , 13 and shorter end edge elements 14 , 15 . In use, the support frame 11 is supported by front feet 16 and rear feet 17 such that the support frame 11 and thus the solar still module 10 are supported at an inclined angle with respect to the horizontal. Any other form of support structure may also be used. Conveniently, the perimeter support frame 11 is formed from galvanized metal tubing or tubing, but any other form of elongated support frame material may also be used. In use, the angle of inclination is 10-50°, preferably about 30°.

[0030]A treatment panel member 18 in the form of a tray 80 having a base wall 19, an upstanding peripheral wall 20 and an upper outwardly extending flange 21 is provided with a method supported on a peripheral support frame 11. Lan 2...

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Abstract

The specification discloses a solar still module (10) for use in a solar still arrangement for producing a desired condensate from a feed treatment liquid, the solar still module (10) having a treatment chamber (85) including a treatment member (18) positioned below an upper solar energy transmission wall (35) to receive, in use, solar energy therethrough, the solar still module (10) having a treatment liquid supply (27) supplying treatment liquid to an upper end (26) of a first region (25) of the treatment member (18) to flow in a liquid film flow gravitationally downwardly thereover while a component of said treatment liquid is at least partially evaporated and condensed to form a condensate (53) on an inner surface (81 ) of the upper solar energy transmission wall (35), the condensate (53) flowing gravitationally downwardly on said inner surface (81 ) of the upper solar energy transmission wall (35) to be collected at a lower location by condensate collection and discharge means (54, 57), the upper solar energy transmission wall (35) being formed by a clear or highly translucent polymer material with the inner surface (81 ) being hydrophilic relative to said condensate, said treatment member (18) being formed by a thin metal material as a tray having a tray base (19) forming said first region (25), a perimeter wall (20) extending upwardly from the tray base along at least side edges and lower edges of said tray base (19), and an outwardly extending flange (21 ) extending from an upper region of said perimeter wall (20), said flange (21 ) being supported on a support frame (11 ).

Description

technical field [0001] The present invention relates to improvements in solar stills for producing the desired condensate (condensate or condensate) from a liquid supply stream by application of solar energy. Typically, but not exclusively, the desired condensate may be clean or fresh water produced from a brine, saline or other contaminant laden supply stream. The condensate may also be alcohol, such as ethanol, evaporated from the alcohol-containing feed stream, which is condensed and removed separately from the solar evaporator. [0002] In a hybrid arrangement, the distiller according to the invention can be operated with a hot water supply, for example from industrial or geothermal applications, wherein the distiller can be operated with minimal or no use of solar energy. Background technique [0003] This specification will describe the invention primarily in relation to the production of a clean or fresh water supply as condensate produced, but it should be understoo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/14
CPCC02F2209/40C02F1/08B01D1/22B01D5/006C02F2103/08B01D1/221B01D1/0035C02F1/14Y02W10/37Y02A20/142Y02A20/212Y02A20/124
Inventor 彼得·约翰斯通
Owner FIRST GREEN PARK
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