SU1735815A1 - Device for flow rate control - Google Patents

Abstract

This invention relates to automatic regulation and can be used in various areas of the national economy to regulate the flow of liquids; bones and gas. The aim of the invention is to expand the operational capabilities of the device through the use of the latter in both vertical and horizontal sections of main pipelines and improved dynamic performance. For this purpose, a regulating organ is used in the form of ferromagnetic balls 8 interacting with the magnetic fields of the annular permanent magnet 5 and the winding 6, as a result of which the necessary degree of deformation of the elastic elastic tube 7 connecting the inlet 2 and outlet 4 of the nozzle of the device is necessary. Depending on the degree of deformation of the tube 7, the flow area of the device is blocked, and consequently, the flow rate of the working medium is regulated. 1 il. s yo

Description

This invention relates to automatic regulation and can be used to regulate the flow of liquid and gas.

The purpose of the invention is to expand the operational capabilities of the device and improve its dynamic characteristics.

The drawing shows a device for controlling the flow, longitudinal section.

The device comprises a housing 1 made of a non-magnetic material in the form of a cone, provided with an inlet 2, protruding into the housing 1 part of which has perforations 3, and an outlet nozzle 4. Outside the inlet 2 is covered by an annular permanent magnet 5, and the whole case 1 of the device is covered winding 6, made with a gradually increasing number of turns in the direction of the outlet nozzle 4. Inside the housing 1, the inlet 2 and the outlet 4 nozzles are interconnected by a rubber tube 7, the thickness of which decreases towards the exit patra Bca 4. Spherical ferromagnetic bodies (balls) 8 are placed between the outer surface of the tube 7 and the inner surface of the housing 1.

The operation of the device is as follows.

In the absence of supply voltage on the winding b, all ferromagnetic balls 8 are located on the end surface of the housing 1, interacting with the constant magnetic field of the ring magnet 5. The flow rate at this moment is maximum, since the flow cross section of the device repeats the pipeline geometry.

As a result of applying voltage to the winding 6, the ferromagnetic material of the balls 8 begins to interact with the magnetic field of the winding, as a result of which part of the balls 8, tearing away from the end wall of the housing 1, rushes towards the outlet nozzle 4, partially deforming (compressing) the elastic tube 7, and therefore by reducing the size of the flow area of the device and limiting the flow of the working medium through it. As the voltage across winding 6 increases, an increasing number of balls 8 come out of interaction with the field

permanent magnet 5 and rushes to the outlet 4, more and more deforming the elastic tube 7 and continues to reduce the flow rate. Feed Maximum

voltage will allow all the balls to be concentrated in the zone of the outlet nozzle 4, where the rigidity of the tube 7 is minimal and the magnetic field strength is maximum, which will ensure complete overlap of the device flow area (zero flow mode).

When the power is removed from the winding 6 as a result of the reaction of the expansion of the elastic tube and due to its influence from the flow side, the balls 8 will be removed from the outlet nozzle zone and, once in the field of attraction of the magnet 5, will take up their original position, ensuring maximum flow. The proposed device for flow control allows to realize

any arbitrary law of regulation.

Claims (1)

Invention Formula Device for flow control, containing a conical body with an inlet and outlet nozzles located on the axis and ferromagnetic bodies located in the body cavity, the inlet nozzle being located on the side of the base of the conical body into the cavity of the conical body and is located in the central hole of the annular constant magnet, as well as the winding connected to the source of adjustable alternating voltage, characterized by the fact that, in order to expand the operational capabilities of the device by using both vertical and horizontal sections of pipelines and improve dynamic performance, the inlet and outlet nozzles are interconnected by means of a tube of elastic material, the portion of the inlet nozzle projecting into the conical body is provided with perforations, the ferromagnetic bodies are made in the form of balls placed in a cavity formed by the inner surface of the conical body and the outer surface of the tube, the winding is mounted on a conical enclosure and performed with an increasing number of turns per unit length towards the outlet nozzle, and the tube is made with a thickness that decreases towards the outlet nozzle.