Oil tank hydraulic oil defoaming device

Abstract

The invention discloses an oil tank hydraulic oil defoaming device. The device comprises a tank body, wherein the inner space of the tank body is divided into two parts communicating with each other through a partition plate filter screen which is vertically arranged in the middle of the tank body, a circulating filter and an oil return filter are arranged on the top face of the tank body, two defoaming oil tanks are correspondingly arranged in the two parts of the box body through supporting legs, an L-shaped oil outlet pipe is arranged below the bottom surface of each defoaming oil tank, the outlets of the L-shaped oil outlet pipes are positioned in the box body, the top surfaces of the defoaming oil tanks are opened and are correspondingly positioned below the circulating filter and the oil return filter, and an oil discharge outlet is formed in the lower part of one side wall of the tank body. According to the device, foams in hydraulic oil can be eliminated, and impact on hydraulic devices such as a hydraulic pump and a hydraulic cylinder is avoided.

Description

technical field [0001] The invention relates to an oil tank hydraulic oil defoaming device, which belongs to the auxiliary device for the pickling export hydraulic station of a rolling mill. Background technique [0002] The phenomenon of "cavitation" and "cavitation" has long existed in the hydraulic station of the pickling outlet of the cold rolling branch of the steel rolling mill. Circulating oil and system return oil enter the oil tank through the circulation filter and oil return filter to impact the liquid level and generate a large number of air bubbles in the area of ​​the oil suction port. The air bubbles generated by the impact of the return oil on the liquid surface enter the oil suction area through the separator screen. Hydraulic oil containing air bubbles enters the pump, causing abnormal vibration and noise. During production, the hydraulic plunger pump is very easy to lose pressure, causing the hydraulic shear to stop, the roll unloading trolley to impact ...

AI Technical Summary

Problems solved by technology

The hydraulic plunger pump is easy to lose pressure during production, causing the hydraulic shear to stop, the unloading trolley to impact when running, and the pickling roll to shake

After the hydraulic station is restarted, the "cavity" of the pump body has no pressure, and the pump needs to be manually filled with oil and the pump can be turned on, and the pressure is unstable, fluctuating between 60bar and 100bar

The "cavitation" phenomenon of hydraulic pumps is serious, frequent pump jumps and pressure loss, resulting in sudden shutdown accidents, heavy shutdown maintenance tasks, abnormal operations and safety hazards

The main reason is that the circulation, oil return filter and overflow pipeline of the hydraulic station did not take effective isolation measures in the oil tank, and the oil hit the liquid surface to generate a large number of air bubbles, which caused many hazards to the hydraulic system

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