SU1409869A1 - Device for measuring reservoir volume - Google Patents

Abstract

This invention relates to a measurement technique. The purpose of the invention is to increase the measurement accuracy. With the passage of gas bubbles into the bubbling chamber (BC) 2, the pressure in the gas cavity of BC 2, which is equal to the pressure of gas in the measured capacitance, increases. At the same time, the pressure in the bubbling tube 3 increases, and when a certain value differs from the initial value is reached, the pressure indicator 4 is triggered and through the switch 11 closes the electrical circuit of the source 9 of radiant energy. The photosensitive element 10 ceases to operate when passing g; Denia bubble through a layer of liquid in BC 2. 1 Il. and (L

Description

/ABOUT

The invention relates to a measurement technique and can be applied for measuring the volumes of hermetic containers or materials that have been placed in hermetic containers.

The purpose of the invention is to increase the measurement accuracy.

The drawing shows a diagram of the proposed device.

The device consists of a measuring tank 1, the volume of which is to be measured, a bar of the measuring chamber 2 connected in series with the measuring capacitance. A bubbling tube 3 is built into the bubbling chamber 15 and the pressure sensors 4 and 5 are connected to its input. A source of pressure differential 6, a valve 7, and an adjustable throttle 8 are connected in series and also connected to the inlet of the barrel tube 3. On both sides of the bubble chamber are located a source of light 9 and a light-sensitive element 10. Two outputs of 25 alarms . 4 and 5 pressure, as well as the output of the photosensitive element 10 are connected to three inputs of the switch 11, and two outputs of the switch are connected to the source 9 of the light and the counter 12.

The device works as follows.

When the throttle 8 is closed, the valve 7 is opened and by adjusting the resistance of the throttles 8, the gas from the pressure differential source 6 in the form of bubbles starts to flow into the gas cavity of the bubbling chamber 2 connected to the gas cavity of the tank 1, the volume of which is necessary to measure.

With the passage of gas bubbles into the bubbling chamber 2, the pressure in the gas cavity of the bubbling chamber, which is equal to the pressure of the gas in the measured capacitance, increases. At the same time, the pressure P at the inlet of the bubble tube increases.

When the pressure at the inlet of the bubbling tube reaches a certain value 5 of PT-D, which is slightly different from the initial one, the pressure indicator 4 is activated and through the switch 11 closes the electrical circuit of the source 9 of radiant energy. 55

L-i

The sensitivity threshold of the photosensitive element 10, such as a photoelectronic amplifier, is configured as

45

five

five

that with a lit source 9 of radiant energy (light bulb), the photosensitive element 10 is triggered only with the passage of a bubble. In this case, a signal about the passage of a bubble through the switch 11 is fed to the counter 12, which takes into account the number of bubbles.

When a certain pressure is reached at the inlet of the bubble tube p, the pressure indicator 5 is activated and switches off the source 9 of light through switch 11. In this case, the photosensitive element 10 ceases to operate when a bubble passes through a layer of liquid in the bubbling chamber.

Volume measure, flax camera can. be derived from the equation

V, .N, tr

where P is the pressure at the inlet of the bubble tube at the moment when the gas bubbles passing through the bubble chamber start; P is the pressure at the inlet of the barbial tube at the time of the end of gas bubbles ;,

 N is the number of gas bubbles passing through the bubbling chamber during the period of pressure change at the inlet of the bubbling tube from P to P; R ;

VQ is the volume of a gas bubble, which can be calculated theoretically by experimentally determined,

F

Thus, the accuracy of the measurement in the proposed device is increased due to the fact that for measuring the volume of a container by quantizing its volume, quantization is carried out by bubbles of gas passing through a sparging chamber partially filled with liquid.

Claims (1)

Invention Formula A device for measuring the volume of a vessel, containing a source of pressure drop, communicated with the measured capacity through a valve and a gas volume quantizer, equipped with a meter, and a signaling device yes: 8, which means that 3 14098694 measure accuracy, in a non-valve through a choke, and a choke, a switch, a second sensing element, and a source a pressure alarm, a light source placed on both sides of the bart and a photosensitive element, a bale chamber at the level of the liquid, volume quantizer pressure gas detectors connected made in the form of closed partial inlets to the bubbling tube, and filled with liquid in the bubbling paths through the switch to the source of the meter with the bubbling light placed in it, with the sensing tube connected to the sensor, connected to the meter,