SU51425A1 - Device for pneumatic water supply - Google Patents

Description

Pneumatic water supply devices are known with two tanks inserted one into the other, of which the internal tank serves as a water tank, and the outer one containing a certain amount of air serves, first, to form a thermoisolating air envelope for the water tank and, in -second, to create the necessary head by compressing air in it while filling the inner tank with water. In the space between the walls, air is constantly circulating, since the air washing the walls of the inner tank receives the heat contained in the water and rises to the upper part of the tank, while the relatively colder air serves as a heat insulating layer; in this case, it is inexpedient to use the heat of water, and at a considerably low temperature of the outside air, the possibility of local freezing of water in the tank is not excluded.

In the proposed device, which has the goal of eliminating this disadvantage, the space of large volume that has hitherto existed above the water tank is reduced to its minimum size, and the relatively warm air that previously occupied this space and did not participate in preventing water from freezing is in the interstitial space of tanks.

The schematic drawing shows a vertical section of the proposed device.

Inside a hermetically sealed reservoir / an open-top water reservoir 2 is placed, connected through a pipeline 3 to a pressure pipe 4, which also serves as a distributing pipeline. The water tank is raised to the upper bottom of the outer tank so that there is a gap between the bottom and the edge of the inner tank, which is necessary for the free flow of water if, due to oversight, it is in excess flow into the inner tank. With this arrangement of the water tank, the free space above it is minimized, as a result of which the heat of the water increases or maintains the temperature of the air surrounding the tank, and the heat insulating properties of the air layer are more reliable than in commonly used installations of this kind.

The subject matter of the invention.

Device for pneumatic water supply, in which a hermetically sealed tank is inserted

a water tank with the formation of an insulating air space between the walls of both tanks, characterized in that the inner tank is suspended by its upper edge to the upper bottom of the outer tank with the formation of a gap between them.