SU1372282A2 - Liquid flow rate stabilizer - Google Patents

Abstract

The invention relates to the field of automatic control and can be used in industry with the use of water and other liquids in technological processes. The purpose of the image is to improve the accuracy of the fluid flow stabilizer. The fluid flow stabilizer contains a sealed tank 1, in which a tube 2 is vertically installed, the lower end of which is located in the recess 3 and is made with holes 4 at the bottom of the tank equipped with a drain nipple 5 with a tap , the lower section of the drain pipe is in communication with the atmosphere, the ejector - with the receiving chamber 6 and the diffuser 7 connected to the separator 8, the upper opening of which is in communication with the atmosphere, and attached to the lower opening 9 The upper end of the tube 2, the main water seal with the first 10 and second 11 nozzles, the lower end of the second nozzle is made in the form of a chamber 12, and the upper end is located at the level of the upper opening of the separator 8, the auxiliary water trap with the third 13 and fourth nozzle C in ( L

Description

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m, and the lower end of the fourth pipe is made in the form of an additional chamber 15, and the upper end is connected to the receiving chamber 6 of the ejector, while the bottom of the chamber 15 is located below the bottom of the tank and at the same level

with the bottom of the chamber 12 of the main hydraulic seal, and the opening 16 of the tank 1, to which the first nozzle is attached, is located below the opening 17, to which the third nozzle is attached. 1 hp f-ly, 1 ill.

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The invention relates to the field of automatic regulation, can be used in industry with the use of water and other liquids in technological processes and is an improvement of the invention according to the author. No. 1158978.

The purpose of the invention is to increase the accuracy of the stabilizer.

The drawing shows a hundred bilizer fluid flow.

The stabilizer contains a hermetic tank 1, in which a tube 2 is vertically installed, the lower one of which is located in the recess 3 and -, is filled with holes 4 at the bottom of the tank equipped with a drain pipe 5 with a tap, and the lower medium of the drain pipe is in communication with the atmosphere an ejector with a receiving chamber 6 and a diffuser 7 connected to the separator 8, the upper opening of which is in communication with the atmosphere, and the end of the tube 2, the main hydraulic lock with the first 10 and second 11 nozzles, and the lower end of the second nozzle made in the form of a chamber 12, and the upper end is located at the level of the upper opening of the separator 8, the auxiliary hydrolock with the third 13 and fourth 1A nozzles, the lower end of the fourth nozzle is made in the form of a second chamber 15, and the upper end is connected to the receiving chamber 6 of the ejector , with the bottom of the chamber 15 located below the bottom of the tank and flush with the bottom of the chamber 12 of the main hydraulic seal, and the opening 16 of the tank 1 to which the first branch pipe is attached is located below the hole 17 to which the third pattern is attached crap.

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The stabilizer fluid flow works as follows.

When the drain valve is closed, the tank 1 is filled with liquid through the ejector, separator, tube 2 and holes 4, and the air is forced out of the tank, mainly through the main hydraulic lock, if the fluid pressure at the entrance to the ejector is low and only through the auxiliary hydraulic lock. if the fluid pressure is high, air will then be sucked from the atmosphere into the reservoir through the main air trap. When the liquid level in the tank reaches the holes 16 and 17, the liquid sequentially fills the chambers 12 and 15 of the hydraulic locks and is installed in the tube 2 and the pipes 11 and 14 somewhat above the liquid level in the tank 1, after which the liquid supply is stopped.

When draining the fluid, immediately after opening the drain fitting tap, the fluid flow determined by the hydrostatic pressure exceeds the calculated one, but as soon as the fluid level in the tube 2 drops below the opening 17 of the reservoir 1, a cavity is created in which the vacuum fluid flow and causing fluid to flow from tube 2 and hydraulic locks into tank 1, and lowering the fluid levels in tube 2 and nozzles 11 and 14. When the fluid level in tube 2 and chambers 12 and 15 reaches the level of the holes 4, atmospheric air will begin to flow through the separator, the tube 2, the holes 4 and the layer of liquid into the upper cavity of the tank 1, reducing the vacuum in this cavity and the levels of liquid in the pipes 10 and 13, and slightly increasing

the fluid levels in the chambers of hydraulic seals, after the tank pressure at the level of the openings 4 will be maintained equal to atmospheric in the entire range of changes in the liquid level in the tank, and due to the location of the bottoms of chambers 12 and 15 below the bottom of the tank, hydraulic locks ensure reliable tightness of the tank, and the stabilizer operates in constant flow mode. To fill the tank with liquid when the stabilizer operates in a constant flow mode, the liquid under a certain pressure is supplied to the ejector, from which it enters the separator 7, where it is separated from the gas phase, drained into the tube 2 and under the action of a vacuum created by the ejector in the upper part of the tank 1 enters through the holes 4 in the tank. If the supply pressure of the fluid to the hey vector is equal to the normalized injection ratio greater than one, all the fluid supplied to the tube 2 will be sucked into the reservoir in the air with atmospheric air, which will maintain the level of fluid in the tube 2 not higher than the orifices 4 and maintaining a constant flow rate. Under the action of the vacuum created by the ejector, air from the tank 1 is pumped out through the pipe 13, the chamber .15, the pipe 14 into the receiving chamber 6 of the ejector, from which it passes through the diffuser 7 to the separator 8 and separates from the liquid and goes to the atmosphere. When the reservoir is filled with liquid to the opening 16, a part of the liquid will flow into the chamber 12, filling the volume of the liquid in the main hydraulic seal, which is necessary during the long-term operation of the stabilizer. The filling of the tank and the supply of liquid to the ejector is stopped when the liquid reaches the level of the opening 17 and the liquid enters

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bones D camera 15 auxiliary hydraulic seal.

Claims (2)

1. Liquid flow stabilizer on the autor. No. 1158978, characterized in that, in order to improve the accuracy of the stabilizer, it contains an ejector, a separator and an auxiliary hydraulic seal, made in the form of a third and four: solid branch pipes, the third branch pipe connected to a sealed tank at the level of the upper wall of this tank, the upper end of the fourth the nozzle is connected to the receiving ke1mera of the ejector, and the lower end of the fourth nozzle is made in the form of an additional chamber connected at the level of its bottom with the third nozzle, the bottom of the additional chamber located on one level with the bottom of the chamber of the main water seal, the ejector diffuser is connected to the separator, the upper end of the tube installed in the hermetic tank is connected to the lower opening of the separator, the upper opening of which is in communication with the atmosphere, and the inlet of the ejector is connected to a source of liquid. 2. A stabilizer according to claim 1, wherein the pressure of the fluid at the inlet to the ejector corresponds to the value of the volume ratio, normalized conditions, the injection is greater than one.