SU15464A1 - Device for signaling the position of the level of liquid in a reservoir - Google Patents

Description

; The use of liquid pressure gauges in electrical signaling devices to indicate the level of a liquid in a reservoir is known; Similarly, lime and the inclusion in the signal circuit of the relay, which serves to control the start-up and stop the pump motor. The present invention relates to these devices and consists in placing an air bell in the knee of a liquid contact pressure gauge with a valve that serves to admit air to the air and to open the signal circuit, which is closed by a spring contact inside the bell.

The drawing shows a diagram of the device with the cut liquid manometer.

In the contact pressure gauge M adjacent to the pond, an air bell b is suspended on a spiral spring; the air bell b is inside; there is a spring contact c and a valve g, illuminated on a thread e. Parallel to the signal circuit, the relay R is turned on. At the lower level of the liquid in the reservoir, the signal circuit is closed by a spring contact and the bell T rings all the time when the reservoir is filled with liquid. As far as filling the reservoir

mercury goes into the left knee of the manometer, the air bell is carried along behind it b. When the liquid reaches the upper level, the tension on the thread opens the valve g of the air bell, which rises above the mercury with a spring; the spring contact opens and the bell stops ringing. By: the fluid is supplied to the reservoir by means of a pump connected to an electric motor controlled by a relay P connected in parallel to the signal circuit and operating during the entire filling of the fluid into the reservoir. When the upper level of the fluid in the reservoir is reached and when the signal circuit is opened, the relay P opens the motor circuit and the fluid supply to the reservoir stops.

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Subject of interest.

1. A device for signaling the level of fluid in a reservoir, characterized in that the knee of a liquid contact pressure gauge adjacent to the reservoir is suspended on a spiral spring with a bG air bell provided inside with a spring contact that serves to close the signal circuit at all times fluid in the pond and suspended from

the inner wall of this manometer bend on the string with a valve that serves to intake air under the bell b at the upper position of the liquid level in the reservoir with 1; the disconnecting signal of the signal circuit. ,

2. In the device described in clause 1, the use of the included a. the signal circuit of the relay P, which serves to automatically start up the motor of the pump for the period of pumping fluid into the reservoir,