SU1408338A1 - Dielectric permittivity sensor of liquid-vapour mixture - Google Patents

Description

(21) 4119055 / 31-25

(22) 06.23.86

(46) 07.07.88. BKP. Number 25

(71) Belarusian Polytechnic Institute

(72) V.K.Sudilovsky, V.V. Bobrov, I.A.Prima and A.V. Shcherbich

(53) 551.508.7 (088.8)

(56) USSR Author's Certificate No. 329460, cl. G 01 N 27/22, 1970.

USSR Author's Certificate No. 325549, cl. G 01 N 27/22 ,. 1970.

(54) ELECOMETRIC SENSOR STEAM-LIQUID MIXTURE

(57) The invention relates to a measurement technique and can be used to measure and control the humidity of a steam bath of streams in atomic

and thermal energy, oil ji oil production and determine the concentration of the liquid phase of the vapor-liquid stream in the processing of petroleum products. The goal is to increase measurement accuracy and simplify sensor operation by dividing the inner cylinder into two parts. When mounted from a measuring chamber, the alignment of the central electrode and the inner cylinder is easily achieved and controlled. The proposed design provides ease of operation of the sensor, since after removing the measuring chamber, the monitoring and, if necessary, complete removal of the salt deposits that are formed, is carried out, which, in turn, increases the measurement accuracy. The sensor includes a housing made of two coaxial cylinders, a central electrode, an electrical input device. The inner cylinder consists of two parts. The first part contains mixing inlets through which the vapor-liquid mixture enters the measuring chamber and is removed through the discharge pat- ter. felling. 1 il.

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The invention relates to measuring-jrenbHoft technology, namely, to dielectrically-sensitive sensors of vapor-liquid mixtures;

The purpose of the invention is to increase the measurement accuracy, and to simplify the operation of the sensor.

The drawing shows the sensor.

The sensor consists of a housing made in the form of two coaxial cylinders 1 and 2, the central electrode 3 of the device 4 electrical input.

The inner cylinder of the housing 2 is made up of two parts 5 and 6. The first part 5 is hermetically connected to the device 4 electrical inlets with the central electrode 3, while jeM at the upper end of this part 5 are mixed inlets 7, the cross-sectional area of which is equal to the circular area chambers 8 formed by the cylinder walls of the housing, and at the lower end of the groove 9, the entrance is a stub into the recesses 10 at the upper end of the second part 6 of the inner cylinder to form a labyrinth seal between the annular 8 and the measuring 11 chambers, that the first | portion 5 of the inner cylinder and the central electrode 3 vsholneny equal; in length.

The sensor works as follows; The vapor-liquid mixture passes from the supply pipe tube 12 into the annular chamber 8, from which the labyrinth seal between the annular 8 and the 11 chambers passes through the mixture almost completely, passes through the mixture-. inlet port 7 into the measuring chamber 11 and. is removed through the discharge nipple 13. The measuring chamber 11 formed by the walls of the inner cylinder 2, the central electrode 3, and the electrical input device 4, while

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The CMB version is conveniently installed in the sensor housing and is removed from it as one piece. When the measuring chamber is installed, the coaxiality of the central electrode 3 and the inner cylinder 2 is easily maintained and monitored, and when dismantled after a certain period of operation, it is easy to control and, if necessary, remove the salt deposits formed, ensuring that the surface of the measuring chamber is kept clean.

The design of the sensor made in this way ensures ease of operation and increases the accuracy of measurements.

25

Claims (1)

20 claims five A dielectric vapor-liquid mixture sensor comprising a housing made in the form of two coaxial cylinders forming an annular chamber, a central electrode forming a measuring chamber with an internal cylinder, an electrical input, supply and discharge pipes, characterized in that, in order to improve measurement accuracy and simplifying the operation of the sensor, the inner cylinder of the housing is made of a two-part component, the first one, the upper part of which is removable, is hermetically connected to the electrical input and about: the force of the cross section of which is equal to the area of the ring Kame0 five The second part of the inner cylinder is rigidly fixed and connected to the first part by means of recesses made in the upper end, and the grooves made in the lower end of the first part, and the central electrode and the first part of the inner length are equal in length.