SU1394042A1 - Device for measuring consumption of solid phase in mixture - Google Patents

Abstract

The invention relates to a measurement technique and makes it possible to improve the accuracy of flow measurement. Expansion chamber 2 is connected to the vertical section 3 of the pipe with sensors 4, 5 of the pressure and pressure, respectively. In the chamber 2, perpendicularly and symmetrically to the axis of the pipeline 1 at a distance of two to three pipe diameters from its output section, a mixture flow meter is placed in the form of a force pulse converter 6. The diameter of the power-receiving surface of the converter 6 is not less than two diameters of the pipeline 1. 1 sludge.

Description

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The invention relates to measurement technology, is intended for; measuring the mass flow rate of dusty toxin, in particular, when using it in blast furnace production, and can be applied in other areas of technology where measurement of the flow rate of dust streams transported by air or gas is required,

The aim of the invention is to improve the measurement accuracy.

The drawing shows a device for measuring the flow of solids in a mixture.

The device comprises a measuring section of the pipeline 1, an expansion chamber 2 connected to a vertical section 3 of the pipe. The expansion chamber in the upper part contains sensitive elements - temperature sensor 4

T and pressure sensor 5 P. A force impulse converter 6 having a sensing surface 7 of an area F, 4 is connected to the pointer 8 and is installed on the lateral surface of the expansion chamber normally and symmetrically with respect to the pipeline 1 with a cross-sectional area F. The device is equipped with a gas flow meter 9.

The device works as follows.

The total flow pulse I is measured (the product of the mass flow rate and

To measure the flow rate of the solid phase, the pulse of the total mixture I flow is first periodically removed from the indicator 8, the gas flow meter 9, G, ..., is determined from the table by the TG depending on the gas temperature T |. and gas pressure P ,. , these values and known values of a, b, f and v in formula (1) are represented and the consumption of the solid phase is calculated, and then the measured values of i, g, .., correct30

T and p baths, and get the value Oh, ..

Claims (1)

Invention Formula A device for measuring the flow of solids in a mixture containing idleness), the mass flow rate of phase C. and the measuring section of the pipeline c calculates the flow of the solid phase 0 taps for supplying gas and solid using the formula G. a (1) WG - b G ,, (1) A phase flow meter installed in the gas phase outlet and a mixture flow meter, characterized in that, in order to improve the measurement accuracy, it is equipped with an expansion chamber with pressure and temperature sensors in which the pipeline axis is perpendicular and symmetrical - three diameters of the pipeline from its output cross-section; a mixture flow meter is installed, performed in the form of a force impulse transducer, 50 the diameter of the power-receiving surface of which is not less than two diameters of the pipeline. de pg gas density corresponding to the conditions (temperature, pressure) of the cross-section of the pipeline with area F, to which the measured quantity I belongs;  the average value of the possible volume concentrations of the solid phase; a and b are calibration coefficients; I is the total flow pulse; F is the cross-sectional area of the pipeline; P P G - gas mass flow rate phases.  The sum of the impulse of the total flow of the mixture 1 and the force of pressure — the product — acts on the transducer 6 of the impulse of force, the magnitude of which is fixed by the pointer 8. The sensitive elements 4 and 5 fix T and P. The gas flow G is measured by the gas flow meter 9. The value of oi is taken as the average of its possible largest and smallest values (0,, 014). Value of p ,. pg (pk, TC) is determined from the table, and F are known. To measure the flow rate of the solid phase, the pulse of the total mixture I flow is first periodically removed from the indicator 8, the gas flow meter 9, G, ..., is determined from the table by the TG depending on the gas temperature T |. and gas pressure P ,. , these values and known values of a, b, f and vol in formula (1) are represented and the consumption of the solid phase is calculated, and then the measured values of i, g ,,., correct30 T and p baths, and get the value Oh, .. Invention Formula the measuring section of the pipeline with taps for supplying gas and solid A phase flow meter installed in the gas phase outlet and a mixture flow meter, characterized in that, in order to improve the measurement accuracy, it is equipped with an expansion chamber with pressure and temperature sensors in which the pipeline axis is perpendicular and symmetrical - three pipe diameters from its output section a mixture flow meter is installed, executed in the form of a power pulse transducer, the diameter of the force-sensing surface of which is at least two pipe diameters. iifiiinnil Order 2208/36 Circulation 717 ilponrjB.-polygram Ave, Uzhgorod, st. Project, 4 Subscription