SU390371A1 - DEVICE FOR MEASURING THE BORDER OF THE SECTION - Google Patents

Description

one

The invention relates to the means of operating and building storage tanks for gas and petroleum products.

The known devices for measuring the interface between two media, for example oil product brine, contain a buffer tank of oil product, respectively, connected via valves to a pump connected by a pipeline with a coloppa oil product installed in the tank, inside of which a brine column is located, connected through a valve to brine storage, do not have sufficient measurement accuracy.

To improve the accuracy and automate the measurement process, the proposed device is connected to the brine column open in the upper part with measuring cylinder inside which there is a float, and outside the measuring point there is a brine height sensor electrically connected to the pump.

The drawing shows a schematic diagram of the described device.

A pump 3 with valves 4, 5 and 6 is installed on the product line / running from the buffer ground tank to the underground tank 2.

On the bypass line 7 of the pump 3 mounted valve 5 (valve return. Release of petroleum products), and on the discharge line -

non-return valve 9. A pressure gauge W serves to measure the pressure of the oil product (a) in the column //. On the pipeline connecting the brine

a column 12 with a brine reservoir; an measuring cylinder 13 open at the top of it is installed with a sensor M for a height of the brine column. Inside the measuring cylinder installed float 15.

The device works as follows.

When the hydrostatic equilibrium of the liquid columns in columns 11 and 12 of the underground tank 2 is when atmospheric pressure is maintained above the liquid in both columns, the height of the liquid column in column 12 will be lower than in the column //, since the specific weight of brine (b) located in column 12, higher than the share of oil product located in the column //. With the valves 5, b open and the valves 4 and 16 open and the valve 8 with a pump 3 pumped oil through the column / from the buffer tank into the underground tank 5. The brine column in column 12 begins to increase at the same time. The oil product is pumped until the column 12 and the measuring cylinder 13 are completely filled to the reference point 0. The moment of reaching the brine column of the reference point O is detected by the level sensor 14, after which the pump

3 turn off and check valve 9 closes

output of oil back from the stored. The movement of the oil product and the brine in the columns 11, 12 and the measuring cylinder 13 stops.

After the installation of the brine level in the measuring column at the point "O" on the pressure gauge 10, the pressure generated by the liquid columns due to the difference in the specific gravities and heights of the liquid columns is measured.

At this pressure, the court and the location of the brine-oil product boundary; the higher the pressure, the greater the depth of this boundary.

Subject invention

A device for measuring the interface between two ores, for example, an oil product-brine, containing a buffer tank of oil product, respectively, connected via valves to a pump connected by pipeline through a non-return valve to an oil product column installed in the measured tank, inside which a brine column is located, connected through a valve with brine storage, characterized in that, in order to increase accuracy and automate the process

measurement, it is equipped with a connected Tipy6o conductors with a brine column open at the top of the measuring cylinder, inside of which there is a float, and outside at the measuring point there is a pickle height sensor electrically connected to the pump.