GB2260274A - Intake filler for distillation plant - Google Patents

Abstract

An intake filter through which sea water is drawn into a distillation plant comprises an array of perforated pipes 6 wrapped with mesh and buried in trenches in the sea bed under layers of gravel 3 to 5, 7 and sand 2, whose particle sizes decrease progressively upwards from one layer to the next and which effect the filtration. <IMAGE>

Description

DISTILATION PLANTS SEA WATER FILTER [Technical field] This invention relates to a distilation plants sea eater filter Background ] The only similar way of filtering sea water used by ditilation plants is by drilling a vertical well on the sea bed , the sea water is then sucked through pipes fitted at the top of the sea wells sea water wells ,are , however expensive , have a short service life , as the sides of the well tend to collapse, also it create a high pressure diffrential at the suction of the pump Essential technicall According to the present invention ther Features J is provided a distilation plant sea water filter comprising a non corrosive perforated pipe buried under different layer of a different size of gravels under the sea bed , the different layers of gravels acts as the filter materials , the efficincy of the filter improves as it runs , the quantity of water required will depends up on the size and the length of the pipe , the depth of burial , and the depth of the sea water For better preformance , the perforated pipe can be wraped by non corrosive mesh to prevent any passing of sand or small gravels to the system at the burial or start up time.

[ Example ] A specific embodiment of the invention will now be described by way of example with referance to the accompanying drawing in which : Fiqure 1 shows in perspective , the position of the perforated pipe buried under different layers of gravels under the sea water Fiquree 2 and 3 illustrats some of the different ways and methodes for the laydown of the perforated. pipe line [NB:The marginal annotations and drawings are for information thy should not be included.

Referring to the drawing the sea water filter comprises a perforated non corrosive pipe 6 wraped with non corrosive mesh , the holes diameter of the pipe shell not exceed half the averag diameter of the first gravel layer 7 Each of the other gravel layers 5,4,3 are smaller than the layer befor accordingly , and the last layer 2 is made of fine sand In order to obtin efficint preformance of the system, the minimum sea depth 1 shell not be less then two meters To lay down the system , a portion of the sea bed sand can be removed at the depth required for the burial of the pipe and the different layers of gravels , where a straight pipe line can be placed In the case of Fiq 2 and 3 , the burial of the system can be done directly on the sea bed with a similer way of laying the different layers of gravels Major advantages of the invention The major important advantages of the invention are: : -It can prevent any kind of pollution such as crude oil from intering the system -It can prevent passing all kindes of algae or uni'cell organism , small fish or fish egges to the system -It protects the enviroment and reduces the amount of chemicals wich is normaly injected to the sea eater befor intering the distilation plant

Claims (1)

1. CLAIMS 1 A distilation plants sea water filter comprising a non corrosive perforated pipe , buried under differnt layers of gravels , and connected to the suction pumps of the distilation plant The different layers of gravels and sand acts as the filter materials 2 A distilation plant sea water filter as claimed in any preceding claim , wherein the perforated pipe is wraped by means of non corrosive mesh to prevent any passing of small gravels or sand to the system 3 A distilation plant sea water filter as claimed in any preceding claims , is designed to prevent pollution intering to the distilation plants such as crude oil , and to protect marine life.