RU2336115C1 - Device for liquid degassing - Google Patents

Abstract

FIELD: technological processes.

SUBSTANCE: device for liquid degassing contains degassing chamber, piston blower with suction and exit nozzles, sprinkler, drain nozzle, which is installed on top, and pipeline of working fluid bleed, which is located in the chamber bottom. Sprinkler is installed under drain nozzle and is arranged in the form of cam with blades, is connected to blower, which is arranged in the form of cylinder with piston, suction and exit nozzles. Suction nozzle communicates to degassing chamber, and exit nozzle - to atmosphere. Control air valve is installed under the drain nozzle, it communicates to atmosphere and includes piston with blade and spring.

EFFECT: design simplification; lower metal intensity; more reliable structure and possibility of chamber underpressure control.

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Description

The invention relates to hydraulic systems, namely to hydraulic tanks with means for degassing a working fluid.

To solve the problem of airing the hydraulic system, for example, transport and technological machines, forced degassing of the working fluid using degassers is used.

Known oil tank with nozzles of the inlet and outlet of the working fluid with a package of inclined partitions with visors from the plates / SU 1687921 A2, MKI 5 F15B 1/06, F16N 19/00, publ. 10.30.91 /. The tank is equipped with an expansion tank with a float valve installed in its upper part; the expansion tank is connected by a pipeline with cavity cavities and a pipeline with an oil separator and an ejector. Gas bubbles, released from the oil, are captured by the visors and sent through the slots to the cavities formed by the plates. During the operation of the ejector, the gas-saturated working fluid through the pipeline enters the expansion tank, where it is finally degassed. Free gas is removed from the tank by means of a pipeline and an oil separator.

The disadvantages of the known technical solutions are the complexity of the design of the device, high metal consumption, low reliability of the design.

A device for degassing wastewater is known, comprising liquid inlet and outlet nozzles in the hydraulic tank body, a spray device made in the form of a disk with blades mounted on a shaft / SU 1692944 A1, MKI 5 C02F 1/20, B01D 19/00, publ. 11/23/91 /. A gas blower having a suction and discharge nozzles is also mounted on the shaft. The suction pipe is in communication with the degassing chamber, and the discharge pipe with the atmosphere. The waste fluid entering the degassing chamber through the inlet pressure pipe hits the blades of the spray device and rotates the gas blower shaft. When a liquid stream acts on the blades of a spray device, there is a fragmentation and release of gases in the liquid.

The disadvantage is the constant creation of rarefaction in the degassing chamber, which can lead to the discharge of liquid droplets into the atmosphere. In addition, it is not possible to control the fluid flow acting on the blades of the spray device.

The technical result in the implementation of the proposed technical solution is to simplify the design, reduce metal consumption, increase the reliability of the design and the ability to control the vacuum in the degassing chamber.

To increase the reliability of the design of the degasser, in particular for the possibility of regulating the created vacuum in the hydraulic tank, it is proposed to combine the sprinkler with blades with the drive cam of the gas blower. In addition, it is proposed to regulate the flow of the working fluid, and therefore, to control the amount of depression, to install a blade in the degassing chamber that restricts the ingress of working fluid onto the blades of the sprayer. The blade is connected to the piston of the control air valve, which ensures the regulation of the vacuum in the degassing chamber.

Compared with the known devices in the proposed solution, the expansion tank with a float valve and an oil separator is replaced by a control air valve, which is a cylinder in which a piston with a blade rigidly fixed to it is located, a spring is located between the cylinder body and the piston. The air valve is connected to the atmosphere. The ejector and the package of inclined partitions are replaced by a sprayer. In this case, the sprayer is made in the form of a cam with blades located under the drain pipe, and is connected to a supercharger, which is made in the form of a cylinder with a piston and is connected to the suction and discharge pipes. The suction pipe is located in the degassing chamber, and the discharge pipe is connected to the atmosphere.

The drawing shows a device for degassing a liquid.

The device comprises a degassing chamber 1, a discharge pipe 2, a sprayer 3 located above the level of the working fluid under the drain pipe 2. The sprayer 3 is made in the form of a cam 4 with blades 5 and acts on the piston 6 of the supercharger 7, made in the form of a cylinder having a suction 8 and outlet 9 nozzles. The suction pipe 8 is in communication with the degassing chamber 1. Under the drain pipe 2 there is an adjustment air valve 10 having a piston 11, a blade 12 and a spring 13. The degassing chamber 1 is provided with a pipe 14 for draining the working fluid. The air valve 10 and the outlet pipe 9 are in communication with the atmosphere.

A device for degassing a liquid works as follows.

The working fluid enters through the drain pipe 2, hits the blades 5 of the sprayer 3, where the gases in the working fluid are released by spraying. The cam 4, combined with the blades 5 of the sprinkler 3, drives the supercharger 7. The supercharger 7 from the degassing chamber 1 through the suction pipe 8 and the exhaust pipe 9 takes a portion of air outside the degassing chamber 1. When the specified vacuum is reached, the piston 11 of the control air valve 10, connected to the blade 12, moves towards the drain pipe 2, blocking the flow of working fluid to the blades 5 of the sprayer 3. In the absence of contact of the working fluid on the blades 5, the cam 4 stops, and then ovatelno stops operation blower 7. The evacuation of air from the degassing chamber 1 is stopped. Upon reaching the specified pressure inside the degassing chamber 1, the control air valve 10 moves the blade 12 in the opposite direction, opening the blades 5 to the flow of the working fluid.

Removal of the released gas from the working fluid is ensured by suction by the supercharger 7 due to the energy of the degassed working fluid. This creates a vacuum region, the pressure in which is regulated by the adjusting air valve 10 by means of a spring 13.

Claims (1)

A degassing device comprising a degassing chamber, a piston supercharger with suction and discharge nozzles, a drain nozzle located at the top of the degassing chamber, and a working fluid outlet pipe located below, a spray nozzle located under the drain nozzle and made in the form of a cam with blades and connected to a supercharger, while the supercharger is made in the form of a cylinder with a piston and is connected to the suction and discharge pipes, the intake pipe being located in the degassing chamber, and the discharge pipe is in communication with atmosphere, under the drain pipe there is a control air valve in communication with the atmosphere and including a piston with a blade and a spring.