RU2816516C1 - Device for obtaining fresh water from atmospheric air - Google Patents

Abstract

FIELD: various technological processes.

SUBSTANCE: invention relates to devices for producing 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 below 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 body. Length of the base of the triangle is less than the width of the container in the direction perpendicular to the arrangement of the channel, while the angle between the lateral ribs of the triangle lies within 90–140°. In the immediate vicinity of the above end of the channel in the sea water there is a wave energy converter fixed 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 body by floats. In addition to the through channel for sea water flow under it in the same way as it, additional channels of similar shape and size are made in number from three to five, arranged one above the other at distance of 10 to 15 cm from the lower surface of the previous one to the top of the next one. Distance from the lower surface of the lower channel for sea water flow to the lower surface of the container is not less than half of its height. Wave energy converter is equipped with a device providing sea water pressure in all channels 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 end of the duct located above, a wave energy converter is placed in sea water, fixed externally to the side surface of the container by means of a fastening device, while the location of the container at the surface of the reservoir is ensured by floats.

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 under it in the same way as it, similar shape and size of additional tracts, from three to five, located one below the other at a distance of 10 to 15 centimeters from the bottom surface of the previous one to the top of the next one. The distance from the bottom surface of the lower path for the flow of sea water to the bottom surface of the container is at least half of its height. In this case, the wave energy converter is equipped with a device that provides pressure of sea water into all paths 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 and prevent splashes from its waves from entering the container 1. Inside the container 1 there is a through path 2 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 3 of which faces the bottom of the container 1, and the top 4 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 2. The angle between the side ribs 5 of the triangle lies in the range of 90-140°. In the immediate vicinity of the upper end of path 2 in sea water there is a wave energy converter 6, made, for example, in the form of a “Salter duck”. The wave energy converter 6 is attached externally to the side surface of the container 1 by means of a fastening device 7. At the bottom of the container 1 there is a vessel for fresh water 8. The location of the container 1 at the surface of the reservoir is ensured by floats (not shown in the figures). In addition to the through path 2 for the flow of sea water under it in the same way as it, additional paths 9 are made, similar in shape and size, in the amount of three to five, located one under the other at a distance of 10 to 15 centimeters from the lower surface of the previous one to the upper rib of the subsequent one. In this case, the distance from the lower surface of the lower path for the flow of sea water to the lower surface of the container is not less than half of its height. The wave energy converter 6 is equipped with a device 10 that provides pressure of sea water into all paths 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 2 and 9 due to their tilt at the appropriate angle under the influence of gravitational forces. Sea water will cool paths 2 and 9 in general and in particular their upper surface, thereby forming a moisture condensation zone. The continuous movement of sea water along paths 2 and 9 is carried out by a wave energy converter 6 and a device 10 that ensures its constant injection into paths 2 and 9 from the side located near the surface of the reservoir. The moisture condensed from the air will flow into the vessel for collecting fresh water 8 due to the action of gravitational forces and the special design of paths 2 and 9, in cross-section having the shape of a triangle with a base 3, apex 4 and side ribs 5, inclined relative to the horizontal axis. Floats ensure that container 1 is always located at the surface of the reservoir. The volume of fresh water produced is increased by increasing the condensation surface area.

Literature

1. RF patent for invention No. 2651298 Device for obtaining fresh water from atmospheric air / Ismailov T.A., Evdulov O.V., Evdulov D.V., Kazumov R.Sh., Davudov D.K. - publ. 04/19/2018, Bulletin. No. 11.

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 tract is at the surface of the water, and the other is lower with an inclination ranging from 20-45°, while 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°, while in the immediate vicinity of the end of the duct located above, a wave energy converter is placed in sea water, attached externally to the side surface containers due to the fastening device, the location of the container at the surface of the reservoir is ensured by floats, characterized in that in addition to the through path for the flow of sea water under it in the same way as it, additional paths similar in shape and size are made in the amount of from three to five, located one below the other at a distance of 10 to 15 cm from the bottom surface of the previous one to the top of the next one, while the distance from the bottom surface of the lower path for the flow of sea water to the bottom surface of the container is not less than half its height, and the wave energy converter is equipped with a device , providing pressure of sea water into all paths for the flow of sea water.