SU437915A1 - The method of controlling the level of separation of two liquid media - Google Patents

Description

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This invention relates to the field of continuous remote monitoring of the level of separation of two liquid media.

The known method of controlling the level of separation of two media by supplying a liquid heat carrier with a constant flow rate and a temperature different from the temperature of the measured medium through the pipes to the separation zone, followed by measuring the temperature of the heat carrier.

In order to enable continuous control of the level of separation of two liquid media of different viscosity according to the proposed method, coolant in the form of jets, in an amount of not less than two, is fed into the dividing zone directly into controlled media and the sum of temperatures in the mixing zones of the coolant with controlled media is measured. which is judged on the level of the section.

The drawing shows an installation for carrying out the method.

Tank 1, filled, for example, with pulp mass of two different concentrations and viscosities, is fed through pipe 2 with recycled water mixed by blender 3 with a mass in the lower part of tank 1. This causes a change in the concentration of pulp that is continuously removed from the tank. In the zone of separation of the pulp of two concentrations and viscosities, jets 4 of fresh water are supplied with constant parameters at the inlet, the temperature of the water being different from that of the pulp. The temperature in the area of the section is controlled by means of sensors 5, a summing unit 6 and indicating device 7.

Level 8 of the pulp section of two different concentrations and viscosities with a constant mass removal from the bottom of the tank depends on the flow rate of circulating water supplied through the pipe 2. The increase in water consumption leads to an increase in the level of the section, a decrease to a decrease in the level.

Temperature sensors 5 are washed by a mass of one concentration or another. The heat exchange of the jets 4 of fresh water with a mass of different concentration and viscosity is different due to the different nature of the movement, therefore the temperature in the zone of mixing of the jets 4 with different mass is also different. The value of the section level is judged by the sum of temperatures measured with the help of sensors 5, unit 6 and device 7, graduated in units of level.

Subject invention

The method of controlling the level of separation of two liquid media by supplying a liquid heat carrier with a constant flow rate and a temperature different from the temperature of the medium being measured to the separation zone, followed by measuring the temperature of the heat carrier, characterized in that in order to ensure the possibility of continuous control of the level of the separation of two liquid media of different viscosity, the coolant in the form of jets, in an amount of at least two, is fed directly to the dividing zone

in controlled environments and measure the sum of the temperatures in the mixing zones of the coolant jets with controlled environments, by which the separation level is judged.

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