SU51117A1 - Airlift - Google Patents

Description

The proposed airlift device in order to reduce the start-up: the event contains two valves, of which the first, installed at the end of the air supply column, is designed to be hermetically closed when the column is immersed in a liquid, and the second valve suspended on two tubes connected to the cavity The same air supply column is designed to carry out aeration of the liquid that occurs under the action of the supplied compressed air and the pipe placed inside the air supply column after immersion one in liquid. When immersed in the air-supplying column in the liquid, both valves prevent the liquid level from rising in it, and further, when the second pipe is lowered inside the column, the first valve opens with a special nozzle at the end of the pipe, as a result of which the pipe is filled with liquid. Compressed air supplied through the annular space between the pipes is freely supplied, not meeting the resistance of the liquid, to the second valve for lifting the liquid through the internal

the tube, due to which the initial starting pressure of the air is reduced.

The drawing shows an axial section of the airlift.

The coupling / inserted into the air guide column 8, at the end of it, has in the central part a through conical opening JO corresponding to the conical part of the pipe // and a seat for a spring-loaded plate-shaped valve 7. s-opening 1 -os. 7. On both sides of the opening 10 there are channels 2 in which the tubes 3 are screwed, carrying the body 4 of the atomizer 6 at their ends, with the ball valve 5 placed inside it, closing the message, the atomizer with the tubes 3. When the column 6 is immersed in liquid, the valves 7 and 5 prevent filling olosti column; column as it floats in the liquid. When the submersion of the column into the well is completed, the tube 1 is lowered inside it, which opens the valve 7 with the help of the nozzle 9 (as indicated in the drawing). The liquid fills the pipe L, and due to the closed valve 5, the annular space between the column. 8 and the pipe // remains empty. Next, compressed air is supplied into the annular space between the column and the pipe, which, through channels 2 and tubes 3, enters the atomizer body and, opening the valve 5, emerges in spray form from atomizer 6, drawing liquid into the pipe // for feed it from the well to the surface.

Due to the fact that there is no liquid in the annular space between the column 8 and the pipe, the initial starting pressure of the compressed air is reduced by the amount of pressure of the liquid column with a height of the level in the well to the valve 5.

The subject matter of the invention. Airlift, characterized in that, in order to reduce the starting pressure, two valves 7 and 5 are used, of which the first valve is installed at the end} of the air-conducting column 8 and is designed to hermetically seal it when immersed in a liquid and then open the nozzle 9 of the conical part of the tube 7 /, and the second valve, half hung to the sleeve Y on the tubes 3, is designed to carry out aeration of the fluid through the tube 11 under the influence of compressed air pumped through the annular space between the // - 8 tubes and the tubes 3.

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