A device for monitoring the pressure in a column pulsed and its application to measuring the level of the interface and the density of the liquid medium.

摘要

The invention has for its object a device for monitoring the pressure within a column pulsed. / p & & p & this device comprises a first and second dip tubes 21, 23 lead to respectively in the column at the level of the points p and p, the means 25, 27, 29 in order to introduce into each of the tubes of a gas and the be bubbled into the liquid of the column, and means 33 for determining the difference in pressure between the tubes; the first and second dip tubes 21, 23 lead respectively in the column by means of capacity c and c have dimensions such that, when the pressure variations due to the angular frequency, the interface gas - liquid is always located in each of said capabilities and that the variations of the level of the interface gas - liquid danx each capacity, are inversely proportional to the densities of the liquid media, presents in volume. / p & & p & thus, it is possible to dispose of the influence harmful of the variations in pressure within the liquid due to the angular frequency, and this device can be used especially for measuring the level of the interface 17 in the settling tank 9.