SU71905A1 - Device for measuring the level of liquid in vessels - Google Patents

Description

Devices for measuring the level of a liquid in closed vessels are known, consisting of a graduated measuring tube with a scale. The tube is equipped with a valve, which, when the tube is installed in a vessel in a vertical position, opens automatically and fills the tube with liquid up to the height of the last in the vessel. After the tube is filled, the valve closes and the tube, together with the fluid that has filled it, is removed from the vessel.

A feature of the proposed device is that a time delay trigger mechanism is mechanically connected to the valve opening, mechanically connected to a float intended to start the mechanism when the entire device is immersed in a liquid so that the valve opens after a predetermined period of time necessary to install the device in the desired position.

The drawing shows the predolsolenny fixture. It consists of a measuring ruler or ru. 9, on which with the help of a mobile bracket along a line /

reinforced tube 2 from a transparent material. The tube in the lower part is closed by a nozzle 5 having a through hole 4 for liquid to enter the tube. The upper part of the tube is provided with a tip 6 with a valve 5.

To control the valve, the trigger is used with a time delay (for example, by the type used in cameras to take a picture after a specified period of time), mechanically connected to the valve by means of the cable 13 and the bar 14.

A movable lock 5 is attached to the tube, which serves to mark on the scale 9 the level of liquid remaining in the tube.

For actuation of the trigger mechanism there is a float 10 which, through the rod 12, acts on the trigger lever J6 of the mechanism 15.

Prior to using the device, it is necessary to preliminarily roughly measure the height of the liquid level by the usual methods, for example, by immersing the measuring ruler or tape measure, after which the device

215

mounted on a ruler or tape of tape measure 9, secured it with screws / 7 so that the middle of the tube accounted for

approximately at the measured height of the ruler.

Before the device is dipped by turning the lever 7, the trigger mechanism is activated, and the bar 14 is raised upwards, opening the valve 5.

When the device is lowered into the liquid, the float 10 rises up, with the end of the rod 12 raising the trigger lever 16 ,. including mechanism 15.

Due to the fact that the valve 5 is open, the liquid from the vessel flows through the opening 4 into the tube, filling the last one up to its level in the vessel.

After a set period of time the trigger, for example 30 seconds, the latter is triggered by closing the valve 5, after which the entire fixture is removed from the vessel with the liquid. Since the valve 5 is closed at the same time, the liquid filling the tube does not flow back, maintaining its level. The height of this level, and, consequently, the level of liquid in a controlled vessel or in a tank, is measured according to a measuring ruler or tape measure 9 with the help of a clamp 5.

Subject invention

A device for measuring the level of a liquid in vessels using a measuring ruler vertically immersed to the bottom of the vessel, associated with a tube equipped with a valve automatically closed when the device is installed in the vessel to fill the tube to a height of the measured liquid, characterized in for closing the valve, a time-delayed trigger is used, mechanically connected to the float, designed to start the mechanism when the device is immersed in a fluid so that the valve is closed Ana took place after a predetermined period of time necessary to install the device in the desired position.