SU65892A1 - Liquid level measuring device - Google Patents

Description

Already known are devices for measuring the level of liquids, consisting of a series of floats freely suspended at different heights one above the other. Each of the floats contains an electrical contact device, which closes the corresponding SIGpal circuit when the float pops up when the liquid level rises to it. By the number of closed contacts, the height of the liquid level is judged. To prevent the liquid from coming into contact with the contacts, the floats can be made in the form of hollow hermetic tightly closed evacuated vessels, inside which contact devices are placed. A feature of the similar device proposed in accordance with the invention is that, as applied to the case of measuring the level of liquefied gases, such as liquid oxygen, to prevent the latter from affecting the electric current leading to the float: the conductors, as well as its swivel device, the last | In the form of two elastic stretch metallic bands or

Single wires:,: For the supply of electrical current to the prisoners inside the vessel's float contacts. These extensions are arranged in such a way that under the pop-up level under the search for a level of 1–: the float is turned as the axes are stretched by twisting the latter.

The drawing shows in two projects the proposed device.

Each I) 3 float is an evacuated glass balloon. In the narrow part of the cylinder, two ametallic loops 2 are inserted, which are the contacts and at the same time the leads from the cylinder of electrical wires. A brass or bronze ball 3 is enclosed inside the balloon, which rolls onto platinum loops when the balloon is tilted, electrically closing them together. In order for the ball not to roll out into the wide part of the float, its stroke is limited by the spring 4 attached to the hinges 5 and into the body of the cylinder. The float is mounted on two horizontally elastic metal leites or

wires 6, which on one side are soldered to a flat spring 10 fixed on fixed racks 7 made of insulating material, and on the other side to wire clamps 8. Clamps are fixed on the float by means of glass protrusions 9 located on the body of the cylinder. The lower ends of the clamps are soldered to the ends of the lead-in contacts 2. Thus, the metal ribbons and clamps serve as current supplies to the float and one way: the shaft is acting as an axis, around which the entire float turns. Tension tapes are tensioned by fastening them to the uprights 7 by means of bronze springs 10. The lead wires 12 are soldered to the springs 10. The rotation of the float is limited at the top and bottom by wire crossbars and.

As the level of the controlled fluid increases, the floats float one after the other. Since they are reinforced on extensions, they turn and some coolant limited by wire stops. When turning the float prisoner z it

the ball is packed on the contacts, locking them. The number of simultaneously closed Float-contacts can be indicated using any of the known signaling or recording devices that are not the subject of the invention, or transmitted to a distance.

Pre if et invented HI

A device for measuring the level of liquids, in particular the level in vessels with liquid air, made in the form of a series of sealed glass vessels arranged at different heights with contacts inserted inward, was healed by a rolling ball. And hung in such a way that. When under the action of a rising liquid level, they are rotated at a certain angle, characterized in that, in order to preserve the mobility of the Float at low temperatures, the swivel device is made in the form of elastic stretches that support the float to simultaneously serve the electric current to the contacts of the latter.

4Fig. one