SU1645654A1 - Hydraulic drive of well pump unit - Google Patents

Abstract

The invention relates to jet technology, mainly to pumping-ejector installations for well operation. The aim of the invention is to increase reliability and simplify the design. The hydraulic actuator of the borehole pumping unit contains a power pump 1, a tank (E) 4 receiving the working fluid with a fluid level sensor 5, a hydrocyclone 6 with a tangential supply hydraulic line 7, an overflow pipe (T) 8 of the working fluid and a conical bottom 9, an ejector 10 with regulating working an element made in the form of a cone-shaped needle 11 and axially displaced in the active nozzle 12 of the ejector 10, and a receiving chamber 13 communicated with the upper section E 4 through the gas exhaust duct 14. T 8 is provided in the upper m section of the sealing elastic membrane 15, fixed by its central part on T 8, and peripheral - on hydrocyclone 6 to provide axial movement of T 8, needle 11 is fixed on the lower part of T 8, and nozzle 12 is mounted coaxially with conical bottom 9 of hydrocyclone 6 and iopr - with it, the sensor of level 5 is kinematically connected to T 8, and E 4 is equipped with an adjusting valve 16. installed in the inlet section of TO. 1 silt (L S

Description

The invention relates to inkjet technology, mainly to pump-ejector installations for the operation of wells in the oil industry.

The purpose of the invention is to increase reliability and simplify the design.

The drawing shows the hydraulic well pumping unit

The hydraulic actuator of the borehole pumping arperaia contains a power pump 1 with a pressure and suction line 2,3, a capacity 4 receiving the working fluid with a level 5 sensor, a hydrocyclone 6

with a tangential inlet hydroline 7, overflow pipe 8 of the working fluid and a tapered bottom 9, ejector 10 with a control working element made in the form of a cone-shaped needle 11 and located with the possibility of axial movement in the active nozzle 12 of the ejector 10, and a receiving chamber 13 communicated with the upper section of the tank 4 receiving the working fluid through the gas outlet channel 14. The overflow pipe 8 is equipped with a sealing elastic membrane 15 fixed to its central clock J ate about

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on the tubular oviduct 8, and the peripheral one on the upper end of the hydrocyclone 6 to provide axial movement of the pipeline 8, the cone-shaped needle 11 is fixed on the lower part of the overflow pipeline 8, and the active nozzle 12 of the ejector 10 is mounted co-axially to the conical bottom 9 of the cyclone 6 and is associated with it, wherein the fluid level sensor 5 is kinematically connected to the upper part of the overflow pipe 8, and the tank 4 is equipped with an adjusting valve 16 installed in the outlet section of the overflow pipe 8,

The hydraulic actuator works as follows

Fluid (spent and produced) from the well under overpressure via hydroline 7 enters the hydrocyclone 6. Depending on the positions of the cone needle 11 in the nozzle 12 of the ejector 10 and the overflow pipe 8 in relation to the fixed valve 16, the fluid from the hydrocyclone 6 accordingly redistributes Between the pipe 8 and the nozzle 12 of the ejector 10.

If the liquid level in the tank 4 is low, the level sensor 5, for example, the float, acts on the overflow pipe 8, immersing it in the hydrocyclone 6, thereby opening the upper end of the pipeline 8 and blocking the exit of the nozzle 12 of the ejector 10 with the needle 11. that most of it flows through the overflow pipe 8, L is the smaller part at the exit from the ejector nozzle 12. As the tank 4 is filled with the working fluid, the sensor 5 moves to the upper part of the tank 4 and accordingly acts on the pipeline 8, which also gradually moves upwards, which leads to a more complete opening of the exit from the nozzle 12 of the ejector 10 and partially or completely closing the exit of fluid through the upper end pipeline 8. In this case, the flow of fluid through

the nozzle 12 of the ejector 10 is increased, and through the pipe 8 is reduced or completely stopped,

Then again, as the level of the liquid in the tank 4 decreases, the amount of liquid through the pipe 8 increases, and through the nozzle 12 of the ejector decreases. Subsequently, the cycle of adjustment of fluid flows in the automatic mode is repeated.

Claims (1)

The invention of the hydraulic pump assembly, comprising a power pump with pressure and suction lines, a working fluid receiving tank with a liquid level sensor, a hydrocyclone with a tangential feed line, a working fluid overflow pipe and a cone-shaped bottom, an ejector with a control working element made in the form of a cone-shaped needle that is axially displaceable in the active nozzle of the ejector, and a receiving chamber communicated with the upper portion of the working fluid receiving capacity by means of the exhaust duct, reliability in operation and simplification of the design; the overflow pipeline is equipped with a hermetic elastic membrane fixed with its central part on the pipeline, peripheral - at the upper end of the pipe rotsiklona to provide axial movement of the pipeline, tapered needle attached to the lower part of the overflow pipe, and an active ejector nozzle is mounted coaxially with the conical bottom of the hydrocyclone and coextensive with In this case, the liquid level sensor is kinematically connected to the upper part of the overflow pipe, and the tank is equipped with an adjustment valve installed in the outlet section of the overflow pipe. J)