RU2450172C2 - Method of water lift and device to this end - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: proposed method comprises ejecting air from atmosphere by pool water jet, via branch pipe 2 into mixing chamber 1, by hydrostatic pressure existing is said pool. Pressure difference at deaerated fluid flow column in lift tube 3 is increased by surface air backing using confuser 6 arranged at air duct inlet 4 and directed toward said surface wind.

EFFECT: higher reliability and water lift height.

2 cl, 1 dwg

Description

The invention relates to a pump engineering and is intended for lifting water, in particular, in water supply.

A known method of lifting airlift by supplying air to a mixer and a device for lifting water, comprising a lifting pipe with a mixer having an air duct and a suction pipe (US 3694106 A, 1972).

A disadvantage of the known method and device is the need for forced air supply to the mixer through the use of industrial energy sources.

Closest to the invention in terms of the method is a method of lifting liquid, comprising ejecting air from the atmosphere with a stream of water flowing from a reservoir through a pipe into a mixing chamber under the influence of hydrostatic pressure acting in a reservoir (SU 1043365 A, 1983). Due to the hydrostatic pressure, the water jet is accelerated to the transportation speed. Air after mixing with water reduces the volumetric weight of the discharged water-air mixture. All this facilitates the rise of a jet sprayed onto water droplets with a high-pressure jet and its delivery to the receiving tank in the direction normal to the water pipe and with a large angle of rotation.

Closest to the invention in terms of the device is a device for lifting water, consisting of a lifting pipe with a mixing chamber, a receiving pipe oriented from a reservoir into the mixing chamber of the lifting pipe, an air pipe connecting the entrance to the mixing chamber of the lifting pipe with the atmosphere (SU 1043365 A, 1983).

A disadvantage of the known method and device is the limited height of the rise of water due to the lack of energy of the water jet.

The objective of the invention is to increase the reliability and height of the rise of water by using the energy of atmospheric wind.

The technical result in terms of the method is achieved by the fact that in the method of lifting liquid, including ejecting air from the atmosphere with a stream of water flowing from the reservoir through the pipe into the mixing chamber under the action of hydrostatic pressure acting in the reservoir, according to the invention, the pressure drop across the aerated liquid column increases the riser by supporting the surface wind, using a confuser oriented towards the surface wind at the entrance to the duct.

The technical result in terms of the device is achieved by the fact that in the device for lifting water, consisting of a lifting pipe with a mixing chamber, a receiving pipe oriented from a reservoir into the mixing chamber of the lifting pipe, an air duct connecting the inlet to the mixing chamber of the lifting pipe with the atmosphere, according to the invention, the air duct is equipped with a confuser facing the surface wind.

The drawing schematically shows a device for lifting water, implementing a method of lifting water.

A device for lifting water contains a mixing chamber 1, placed coaxially with the receiving pipe 2, oriented from the reservoir into the mixing chamber 1 of the lifting pipe 3, on which the duct 4 is connected by means of a rib 5, connecting the entrance to the mixing chamber 1 of the lifting pipe 3 with the atmosphere. The air outlet 4 entering the atmosphere is equipped with a confuser 6 facing the surface wind.

The method of lifting the fluid described device is as follows.

The device is immersed in a liquid. By immersion of the device in the reservoir’s liquid, under the influence of hydrostatic pressure in the reservoir, a stream of liquid flows through the nozzle 2 into the mixing chamber 1. The jet ejects air from the atmosphere through the duct 4. In the mixing chamber 1, water and air are mixed, forming a two-phase mixture. Under the action of the high-speed pressure of the liquid stream from the pipe 2, the air-water mixture rises along the lifting pipe 3 to the day surface. The diameter of the hole of the pipe 2 dispensing the flow of water during the formation of the water-air flow. At the same time, with the help of the confuser 6, they capture the air flow from the surface wind, which enters the mixing chamber 1 through the air duct 4, creating an additional pressure drop in it on the column of the air-water mixture moving up the lift pipe 3. With a regular flow of air that carries water drops up , the process of lifting water can continue until these conditions are violated. In the absence of surface wind, the water levels in the reservoir and mixing chamber 1 are equalized. When the surface wind reappears, the device is restarted. The first option to start the operation of the device is that the device is removed from the water to empty the mixing chamber 1, and then re-immersed in water. The lifting process is resumed. The second option is to resume the rise of water automatically. The process of lifting water begins when the high-pressure headwind of the surface wind exceeds the length of the water plug in the mixing chamber 1. The upward movement of the air-water mixture flow through the lifting pipe 3, in addition to the atmospheric pressure difference between the inlet and outlet of the lifting pipe 3, is also facilitated by the high-speed air flow along the outlet cross section of the pipe 3, additionally ejecting the water-air mixture from the pipe 3. Thus, when using surface wind, the rate of rise of the water-air mixture increases and thereby tiruetsya reliability of liquid rise.

Claims (2)

1. A method of lifting liquid, including ejecting air from the atmosphere with a stream of water flowing out of a reservoir through a nozzle into a mixing chamber under the action of hydrostatic pressure acting in a reservoir, characterized in that the pressure drop across the aerated liquid column in the riser increases by backwater, using a confuser at the entrance to the duct, oriented towards the surface wind. 2. A device for lifting water, consisting of a lifting pipe with a mixing chamber, a receiving pipe oriented from the reservoir into the mixing chamber of the lifting pipe, an air duct connecting the inlet to the mixing chamber of the lifting pipe with the atmosphere, characterized in that the outlet duct is provided with a confuser, facing the surface wind.