RU2126476C1 - Water lifting device - Google Patents

Abstract

FIELD: hydraulic engineering. SUBSTANCE: this is used for example for lifting water from water-bearing horizon and for water-supply purposes included. This is achieved by direct action of rarefied medium. Water lifting device has syphon. Top of syphon is connected with hermetically sealed chamber having water lifting pipe in its lower part. Water lifting pipe connects chamber with headrace of water basin. Lower part of water lifting pipe under level of liquid is connected with mixing proportioner which is made in the form of vertical tube with hole. This hole is located below level of liquid and above point of connection with water lifting pipe. Upper part of vertical tube is brought out to atmosphere. EFFECT: higher efficiency. 1 dwg

Description

 The invention relates to hydraulic structures, and in particular to devices for lifting liquids by direct exposure to a rarefied medium, and can be used to lift water from an aquifer.

 Known gas lift for lifting water from an aquifer, containing a lifting pipe with a mixer in the lower part and a sealed air separator in the upper part, a supercharger with a suction and pressure nozzles and a receiver equipped with a compressed air feed cylinder (SU, copyright certificate, 1701991, class F 04 F 1/18, 1991).

 The known device allows by reducing the density of the flow of rising water due to the artificial formation of a water-air mixture with a compressor to ensure the rise of water from an aquifer to the surface of the earth.

 A disadvantage of the known gas lift is the high cost of installation and operation of tubing equipment, as well as the possibility of contamination of the rising water with waste / particles of fuel and lubricants released during the operation of machines and mechanisms /.

 A device for lifting water, including a siphon, the top of which is connected to an airtight chamber equipped in its lower part with a water pipe that connects the chamber to the upper pool of the watercourse (SU, copyright certificate, 84472, class F 04 F 10/02, 1951) .

 The known device for lifting water allows, thanks to the suction action of the siphon, to convert the low difference in water levels at the dam to a higher one, which ensures the rise of water from the upper pool of the watercourse and its accumulation in a sealed chamber located below the crest of the siphon.

 The disadvantage of this known device is that the height of the water rise above the headwater is limited by the marks below the siphon crest, which, taking into account the maximum possible height of the water rise by the siphon (about 10 meters of water column) is 6-8 meters and narrows the scope of its application.

 The aim of the present invention is to expand the scope of the device by allowing water to rise above the crest of the siphon.

 This goal is achieved by the fact that in a device for lifting water, including a siphon, the top of which is connected to a sealed chamber, provided in its lower part with a water pipe that connects the camera to the upper pool of the watercourse, according to the invention, the lower part of the water pipe under the liquid level is connected to the mixer - a dispenser, which is made in the form of a vertical tube with a hole located below the liquid level above the junction with the riser, and the upper part of the tube is vented to the atmosphere.

 The invention is illustrated in the drawing, which shows a device for lifting water (section along the axis of the device).

 The top of the siphon 1 is connected by a tube 2 to a sealed chamber 3. The lower part of the chamber 3 is provided with two pipes, of which a water-lifting pipe 4 connects it to the upper pool 5, and the pipe 6, equipped with a crane 7, is facing the consumer.

 The lower part of the lifting pipe 4 below the liquid level of the upper pool 5 is equipped with a metering mixer, made in the form of a vertical tube 8 with an opening 9, located below the liquid level of the upper pool 5 above the junction of the pipe 8 with the lifting pipe 4. The upper part of the pipe 8 above the liquid level the upstream 5 is open to the atmosphere, the lower part (outlet) of the tube 8 below the junction of the tube 8 with the riser 4 is placed under the liquid level of the downstream 10 of the watercourse.

 The ascending and descending branches of the siphon 1 are submerged, respectively, under the liquid level of the upper pool 5 and lower pool 10 of the watercourse with a level difference.

 A device for lifting water works as follows.

 To turn on the device in operation, one of the known methods is necessary, for example, by removing air from the siphon 1, to ensure that it is filled with water until a steady flow of liquid through its cavity from the upper pool 5 to the lower pool 10 of the watercourse is established, the level difference between which h is greater than the total hydraulic resistance along the path of fluid movement.

 A steady flow of fluid through the siphon 1, due to its suction effect, ensures the capture and removal of both air accumulating at the top of the siphon 1 and the air entering the pipe 2 from the sealed chamber 3, in the cavity of which there is also a vacuum (if immersed under the level liquid downstream 5 of the watercourse of the lower part of the lifting tube 4 and the closed valve 7 on the pipe 6 facing the consumer.

 Since the vertical tube 8 hydraulically interconnects the upper pool 5 and the lower pool 10 of the watercourse, and its upper part above the liquid level of the upper pool 5 is open to the atmosphere, a water-air flow is also formed in its cavity.

 Thus, to the lower part of the lifting pipe 4, immersed under the liquid level of the upper pool 5 of the watercourse, it is not the water itself that is supplied, but the air-air mixture, the rise of which through the pipe 4 into the sealed chamber 3 is ensured by a vacuum in its cavity, which is created and maintained by the suction siphon action 1.

 Since the lower part of the tube 8 is placed under the liquid level of the downstream 10 of the watercourse, the mixer-dispenser provides not only the formation of a water-air mixture of a predetermined density, but also by dumping part of the water into the downstream 10, automatically adjusting the flow of water-air mixture into the water-lifting pipe 4 in full compliance with the amount of vacuum in her cavity.

 The density of the water-air flow, which is formed in the tube 8, can be adjusted both by the size of the inlet opening located below the liquid level above the junction with the water-lifting tube 4, and by its immersion depth under the liquid level.

 This circumstance makes it possible to ensure that the airtight chamber 3 is filled with water (after separation of the phases of the air-air flow entering it through the water-lifting pipe 4 with the constant removal of air from its cavity through the pipe 2 due to the suction action of the siphon 1) at a height significantly exceeding the mark of the location of the siphon crest 1 and defined as a value inversely proportional to the density of the air-water mixture, raised through the pipe 4.

 When filling the chamber 3, water from it can be directed to the consumer through a pipe 6 equipped with a valve 7.

 The proposed water-lifting device allows for the rise of water much higher than the siphon crest, which expands the scope of this device.

 The implementation of the mixer-dispenser in the form of a vertical tube with an opening allows not only to create a water-air mixture of a predetermined density, which determines the height of the water rise, but also provides automatic adjustment (adjusting the supply of gas and liquid components to the water pipe) of the device depending on the changing flow conditions .

 The absence of moving parts in the design of the device increases its reliability and reduces the costs of both manufacturing the device and its maintenance.

 The device is environmentally friendly and can, when discharged through a siphon of technical (dirty) water, provide rise to a sealed storage chamber from any watercourse (water source), under the water level of which a metering mixer will be placed. In this case, the excess water can be discharged by the metering mixer either under the water level of the downstream of the watercourse, or directly into the atmosphere below the water level of the upstream watercourse of the watercourse.

Claims (1)

 A device for lifting water, including a siphon, the apex of which is connected to a sealed chamber provided in its lower part with a water pipe that connects the camera to the upper pool of the watercourse, characterized in that the lower part of the water pipe under the liquid level is connected to a metering mixer, which is made in the form of a vertical tube with a hole located below the liquid level above the junction with the riser, and the upper part of the tube is vented to the atmosphere.