SU1717871A1 - Device for creating fast flow of liquid in pipe lines - Google Patents

Abstract

The invention relates to means for accelerating the passage of fluid through pipelines and can be used in gas and aerospace engineering, in hydraulic structures and hydraulic actuators. The aim of the invention is to reduce pressure pulsations and increase pipeline capacity. This goal is achieved by that in the device containing a perforated main pipeline 1 and an elastic-damping chamber 3 enclosing it, an additional perforated pipe 4 is installed in the outlet section of the pipeline 1 to form an annular gap, with the axes of the openings 2 located at an angle of 15 ° to the longitudinal axis of the pipeline 1, and the axis of the openings 7 - at an angle of 165 ° to the axis of the pipe 4. 2 Il.

Description

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The invention relates to means for accelerating the passage of fluid through pipelines and can be used in gas and aerospace engineering, in hydraulic structures and hydraulic actuators.

The aim of the invention is to reduce pressure pulsations and increase pipeline capacity.

FIG. 1 shows a structural diagram of the proposed device; in fig. 2 shows section A-A in FIG. one.

A device for creating accelerated fluid movement in pipelines comprises a perforated main pipeline 1 with openings 2 and an elastic-damping chamber 3 surrounding it, an additional perforated pipe 4 located coaxially with the outer surface 5 of the outlet section of pipeline 1 and forming an annular channel b with this section, which informs the cavity of the chamber 3 and the pipe 1 through the holes 7.

Holes 7 are uniformly located on the pipe 4 at an angle / to its longitudinal axis, equal to 165 °.

Holes 2 are evenly located on the pipeline 1 at an angle a to its axis, equal to 15 °.

The device works as follows.

The fluid moving through the main pipeline 1 flows through the openings 2 into the elastic-damping chamber 3. The arrangement of the openings 2 at an acute angle to the longitudinal axis of the pipeline 1, and the openings 7 - under the blunt - contributes to the directional flow of fluid from the chamber 3 to the annular channel 6 From here, the accelerated flow of fluid enters the exit of the device.

In the unstable mode of fluid movement in the pipeline 1, for example, in the event of a pressure pulsation, an instantaneous direct and reverse movement of the walls of the elastic-damping chamber 3 occurs in it. In this case, the energy of the pulsating fluid flow is transformed into the energy of elastic oscillations of the chamber. 3. The combined effect of the distributed perforation in the form of holes 2 and 7 and the elastic-damping chamber 3 reduces the pressure pulsations in the pipeline at the outlet section of the pipeline 1. The elastic energy of the elastic-damping chamber 3 is spent on creating a traveling wave that generates directional and accelerated motion fluid in the annular channel 6. From here, the accelerated flow of fluid enters the pipeline 1

and causes a general increase in the flow rate of liquids in the pipeline with a simultaneous decrease in pressure pulsations in pipeline 1.,

Claims (1)

Invention Formula A device for creating accelerated fluid flow in pipelines, comprising a perforated main pipeline and an elastic-damping chamber surrounding it, characterized in that, in order to reduce pressure pulsations and increase the capacity of the pipeline, it is equipped with an additional perforated pipe located coaxially outside the surface of the output section of the main pipeline and forming an annular channel with this section, connecting the cavities of the chamber and the main pipeline, with the axes of the holes in the main the pipeline is located at an angle of 15 ° to the axis of the pipeline, and the axis of the holes in the additional pipe is at an angle of 165 °.