RU2818331C1 - Device for obtaining fresh water from atmospheric air - Google Patents

Abstract

FIELD: methods and apparatus for producing or collecting water.

SUBSTANCE: invention relates to production of fresh water from water vapours contained in ambient air. Device contains an open-top container immersed into a reservoir with sea water so that its walls extend beyond the water surface. Inside the container there is a through channel for sea water flow, located between two opposite walls of the container and arranged so that one end of the channel is located at the water surface, and the other one is lower with an inclination within range of 20–45°. Cross-section of the channel has the shape of a triangle, the base of which faces the bottom of the container, and the top faces the surface of the water reservoir. Length of the triangle base is less than the width of the container in the direction perpendicular to the arrangement of the channel. Angle between the lateral edges of the triangle lies in range of 90–140°. In the immediate vicinity of the above end of the channel in the sea water there is an actuating mechanism of a wind energy converter. Latter is composed of a rotating shaft with a blade mechanism for injecting sea water into the channel attached from the outside to the side surface of the container by means of a fastening device. Container is located at the surface of the water reservoir by floats. Upper edge of the container is equipped with visors facing the centre of the container at an angle to the horizontal plane. Above the channel there is a solar collector fixed on the side surfaces of the container, having through holes in the vertical direction, which is located so that there is an air gap between its lower surface and the upper surface of the channel. Additional through channel for sea water flow, identical in shape and size to the first one, is located in addition to the through channel for sea water flow and is mirror to it with respect to the central vertical plane, in the immediate vicinity of which at its end, which is located above, there is an additional wind energy converter fixed from the outside to the side surface of the container due to an additional fastening device. In the area of channels intersection, they have a common volumetric part. Solar collector is also located above the additional through channel for sea water flow.

EFFECT: increased area of condensation of the device and increased volume of produced fresh water.

1 cl, 2 dwg

Description

The invention relates to devices for obtaining fresh water from water vapor contained in the surrounding atmospheric air, and can be used to obtain fresh water mainly in coastal areas with seas.

The prototype of the invention is the device described in [1]. The device contains a container with an open top, immersed in a body of sea water so that its walls extend beyond the surface of the water. Inside the container there is a through path for the flow of sea water, located between two opposite walls of the container and placed so that one end of the path is at the surface of the water, and the other is lower with an inclination in the range of 20-45°. The tract in cross section has the shape of a triangle, the base of which faces the bottom of the container, and the apex faces the surface of the reservoir, and the length of the base of the triangle is less than the width of the container in the direction perpendicular to the placement of the tract, and the angle between the side edges of the triangle lies in the range of 90-140°. In the immediate vicinity of the upper end of the path in sea water there is an actuator of the wind energy converter, which is a rotating shaft with a blade mechanism for pumping sea water into the path, fixed externally to the side surface of the container due to a fastening device, while the location of the container at the surface of the reservoir is ensured floats. The upper edge of the container is equipped with visors facing the center of the container at an angle to the horizontal plane. A solar collector is placed above the path, mounted on the side surfaces of the container, having through holes in the vertical direction, located so that there is an air gap between its lower surface and the upper surface of the path.

The disadvantage of such a device is the insufficient condensation surface area, which limits the production of a large volume of fresh water.

The purpose of the invention is to increase the condensation area of the device and increase the volume of fresh water produced.

The goal is achieved by the fact that in addition to the through path for the flow of sea water, an additional through path for the flow of sea water, identical in shape and size to the first one, is located mirrored to it with respect to the central vertical plane. In close proximity to it, at its end located above, there is an additional wind energy converter, fixed externally to the side surface of the container due to an additional fastening device. In the area where the tracts intersect, they have a common volumetric part. Moreover, the solar collector is also located above an additional through path for the flow of sea water.

The block diagram of the device is shown in Fig. 1.

The device consists of a container 1 with an open top, immersed in a reservoir of sea water so that its walls extend beyond the surface of the water, while the upper edge of the container 1 is equipped with canopies 2 to prevent splashes from sea waves from entering it, facing the center of the container at an angle to the horizontal plane. Inside the container 1 there is a through path 3 for the flow of sea water, located between two opposite walls of the container 1 and placed so that one end of the path is at the surface of the water, and the other below with an inclination in the range of 20-45°. The path is shown in Fig. 2 and in cross section has the shape of a triangle, the base 4 of which faces the bottom of the container 1, and the top 5 faces the surface of the reservoir. The length of the base of the triangle is less than the width of the container 1 in the direction perpendicular to the placement of the tract 3. The angle between the side ribs 6 of the triangle lies in the range of 90-140°. Above path 3 there is a solar collector 7, mounted on the side surfaces of container 1, having through holes in the vertical direction, located so that there is an air gap between its lower surface and the upper surface of path 3. In the immediate vicinity of the upper end of path 3 in sea water there is an actuator of the wind energy converter 8, which is a rotating shaft with a blade mechanism for pumping sea water into path 3. The wind energy converter 8 is attached externally to the side surface of the tank 1 due to a fastening device 9. At the bottom of container 1 there is a vessel for fresh water 10. The location of container 1 at the surface of the reservoir is ensured by floats (not shown in the figures). In addition to the through path 3 for the flow of sea water, mirrored to it with respect to the central vertical plane, there is an additional through path 11 for the flow of sea water, identical in shape and size to the first one. In close proximity to it, at its end located above, there is an additional wind energy converter 12, fixed externally to the side surface of the container due to an additional fastening device 13. In the area where the paths intersect, they have a common volumetric part. Moreover, the solar collector 7 is also located above the additional through path 11 for the flow of sea water.

The device works as follows.

Container 1 is placed in the reservoir and fixed in the required position using appropriate clamps (not shown in the figures). After container 1 is immersed in the reservoir, sea water will begin to flow through paths 3 and 11 due to its tilt at the appropriate angle under the influence of gravitational forces. Sea water will cool paths 3 and 11 in general and in particular their upper surface, thereby forming a moisture condensation zone. The continuous movement of sea water along paths 3 and 11 is carried out by wind energy converters 8 and 12, ensuring its constant injection into paths 3 and 11 from the side located near the surface of the reservoir. The solar collector 7 placed above path 3 and additional path 11 will provide additional heating of the air above the upper surface of paths 3 and 11, which will make it possible to intensify the process of fresh water condensation. Through holes in the solar collector 7 will ensure a constant flow of moist air into the condensation zone. The moisture condensed from the air will flow into the vessel for collecting fresh water 10 due to the action of gravitational forces and the special design of paths 3 and 11, in cross-section having the shape of a triangle with a base 4, apex 5 and side ribs 6, inclined relative to the horizontal axis. Floats ensure that container 1 is always located at the surface of the reservoir, and canopies 2 provide protection from splashes of sea water entering it. The volume of fresh water produced is increased by increasing the condensation surface area.

Literature

1. RF patent for invention No. 2745593 Device for obtaining fresh water from atmospheric air / Ismailov T.A., Evdulov O.V., Evdulov D.V., Gyulmagomedov K.I. - publ. 03/29/2021, Bulletin. No. 10.

Claims (1)

A device for obtaining fresh water from atmospheric air, containing a container with an open top, immersed in a reservoir of sea water so that its walls extend beyond the surface of the water, inside which there is a through path for the flow of sea water, located between two opposite walls of the container and placed so , so that one end of the path is at the surface of the water, and the other is lower with a slope ranging from 20-45°, while the path in cross section has the shape of a triangle, the base of which faces the bottom of the container, and the top to the surface of the reservoir, and the length of the base is of the triangle is less than the width of the container in the direction perpendicular to the placement of the path, the angle between the side ribs of the triangle lies in the range of 90-140°, while in the immediate vicinity of the end of the path located above the sea water there is an actuator of the wind energy converter, which is a rotating shaft with a blade mechanism for pumping sea water into the path, fixed externally to the side surface of the container due to the fastening device, while the location of the container at the surface of the reservoir is ensured by floats, and the upper edge of the container is equipped with visors facing the center of the container at an angle to the horizontal plane, and above the path is placed a solar collector mounted on the side surfaces of the container, having through holes in the vertical direction, located so that there is an air gap between its lower surface and the upper surface of the path, characterized in that, in addition to the through path for the flow of sea water, it is mirrored to it with respect to in the central vertical plane there is an additional through path for the flow of sea water, identical in shape and size to the first one, in the immediate vicinity of which, at its end located above, there is an additional wind energy converter, fixed externally to the side surface of the container due to an additional fastening device, Moreover, in the area of intersection of the paths they have a common volumetric part, and the solar collector is also located above the additional through path for the flow of sea water.