METHOD AND DEVICE FOR REGULATING THE FLOW OF LIQUID FROM A VESSEL UNDER AREA Russian patent published in 2021 - IPC B04C5/14 

FIELD: fluid draining devices.

SUBSTANCE: invention relates to a device for draining fluid from vessels under negative pressure with respect to atmospheric pressure. A method for regulating the flow of liquid from a vessel under vacuum, including the use of a valve with a seat, when a hydraulic plug is formed above the seat, characterized in that the valve closing mechanism acts on the movable part of the valve, with an increase in the gap between the movable part of the valve and the seat, the valve closing mechanism increases the valve closing force. An adjustment device is also claimed.

EFFECT: increasing the stability of the drainage system, simplifying and accelerating cleaning.

3 cl, 1 dwg