RU2489712C2 - Measuring device of concentration of mechanical impurities in media - Google Patents

Abstract

FIELD: measurement equipment.

SUBSTANCE: measuring device of concentration of mechanical impurities in media includes a pipeline with controlled liquid, into which there mounted at some distance from each other are receiving piezoelectric converters made in the form of solid or split rings with piezosensitive layers applied to inner and outer surface of rings parallel to their central axis, which are electrically connected to electronic units, an emitting piezoelectric converter connected to an electromagnetic oscillation generator, as well as an information processing and presentation unit connected to outputs of electronic units and the electromagnetic oscillation generator. According to the invention, the device additionally includes a closed tank for reference liquid, a solid particle collection tank with a level sensor and a control unit. The solid particle collection tank is connected via a pipeline through an on- off electromagnetic valve to the closed tank for reference liquid and a three-way electric valve with a pipeline with controlled liquid, at the outlet of which there installed is a three-way electromagnetic valve, and the control unit is electrically connected to electromagnetic valves, output of the information processing and presentation unit and output of the level sensor.

EFFECT: enlarging functional capabilities of the device owing to measuring the content of mechanical impurities in gas.

2 cl, 1 dwg

Description

The invention relates to techniques for measuring the quality parameters of air and liquid media and can be used to measure the content of mechanical impurities in both liquid and gaseous media.

A device for measuring the concentration of mechanical impurities in a liquid is known, based on the ultrasonic method, which is based on the property of the wave front passing through the liquid to be reflected when the homogeneity of the liquid is violated (see, for example, Belyakov V.L. Automation of oil and water field preparation - M .: Nedra, 1988, p. 158).

The disadvantage is the impossibility of measuring the concentration of solids in gases.

The closest in technical essence to the claimed invention is a device for measuring the concentration of solids in liquid media, containing a pipeline with a controlled liquid, in which are mounted piezo-receiving receivers made in the form of solid or split rings with piezoelectric layers deposited on the inner and outer surfaces of the rings parallel to their central axis, electrically connected to electronic blocks, emitting a piezoelectric Connected to a generator of electromagnetic waves, and the processing unit and to provide information related to the outputs of electronic components and the generator of electromagnetic waves (see., E.g., RU 2105300, 20/2/98). Due to the Doppler effect, ultrasonic waves, reflected from particles of appropriate sizes, are recorded by the corresponding piezoelectric receivers. Identification of the nature of the particles is carried out by their position in a certain part of the space of the pipeline, fixed by the corresponding piezoelectric receivers.

The disadvantage is that the device provides measurement of solids only in liquid media.

The technical result of the invention is to expand the functionality of the device by measuring the content of mechanical impurities in the gas.

The specified technical result is achieved by the fact that in the known device for measuring the concentration of mechanical impurities in a liquid containing a pipeline with a controlled liquid, in which receiving piezoelectric agents are mounted at some distance from each other, made in the form of continuous or split rings with piezoelectric layers deposited on the inner and the outer surface of the rings parallel to their central axis, electrically connected to electronic blocks, a piezoelectric emitter connected to an electromagnetic oscillation generator, as well as an information processing and presentation unit associated with electronic block outputs and an electromagnetic oscillation generator, an additional closed container for a reference liquid, a container for collecting particulate matter with a level sensor and a control unit are additionally introduced, while a container for collecting particulate matter is connected pipeline through a two-position solenoid valve with a closed container for a reference liquid and a three-position electric valve with a pipeline with a con trolled liquid at the outlet of which a three-position solenoid valve is installed. The control unit is electrically connected to the electromagnetic valves, the output of the processing unit and the presentation of information and the output of the level sensor. A time sensor is introduced into the information processing and presentation unit.

The figure shows a structural diagram of a device where it is indicated:

1 - pipeline;

2 - controlled fluid;

3, 4, 5 - receiving (solid or split) piezoelectric transducers;

6 - radiating piezoelectric transducer;

7, 8, 9 - electronic blocks;

10 - generator of electromagnetic waves;

11 - block processing and presentation of information;

12 - pipeline;

13.1 - two-position solenoid valve;

13.2, 13.3 - three-position solenoid valves;

14 - a closed container for a reference liquid;

15 - capacity for trapping solid particles;

16 - liquid level sensor;

17 - control unit.

The pipeline 12 is designed to connect a closed container for a reference liquid 14, a container for trapping solid particles 15 with the pipeline 1.

The two-position solenoid valve 13.1 is designed to distribute liquid between a closed container for a reference liquid 14 and a container for trapping solid particles 15.

Three-position solenoid valve 13.2 is designed to distribute fluid in pipelines 1, 12.

Three-position solenoid valve 13.3 is designed to distribute liquid in the pipeline 1 and the withdrawal of liquid with trapped solid particles from the device.

A closed container for a reference fluid 14 is designed to accommodate a reference fluid.

The container for collecting particulate matter 15 is designed to trap the liquid in it of solid particles from a gas settling on its surface.

The liquid level sensor 16 is designed to monitor the liquid level in the tank for trapping solid particles 15.

The control unit 17 is designed to control the switching of the positions of the electromagnetic valves 13.1, 13.2, 13.3.

The device operates as follows. The operator sets the time parameters of the measurement to the time sensor of the information processing and presentation unit 11, and the output signal is supplied to the control unit 17. The control unit 17 generates signals to open the two-position solenoid valve 13.1 and close the three-position solenoid valve 13.2, the three-position solenoid valve 13.3 is set to , allowing the controlled fluid 2 to leak from the pipeline 1, after which the three-position solenoid valve 13.3 closes. The liquid from the closed container for the reference liquid 14 through the pipe 12 with the open on-off electromagnetic valve 13.1 flows into the container for collecting particulate matter 15. When filling the container for collecting particulate matter 15 to the required level, the liquid level sensor 16 sends a signal to the control unit 17, which generates signal to close the two-position solenoid valve 13.1. After the time period set by the operator in the time sensor expires, the information processing and presentation unit 11 generates a signal to the control unit 17, which generates a signal to translate the three-position solenoid valve 13.2 into a position that allows fluid to flow from the pipeline 12 to 1. Liquid with trapped solid particles from the tank for trapping solid particles 15 through pipeline 12 through a three-position solenoid valve 13.2 flows into pipeline 1, after which when voltage is supplied from the generator 10 to uchayuschy converter 6 as a result of the interaction of ultrasound waves with impurities occur by mechanical waves reflected from mechanical impurities. The reflected waves are fixed by receiving piezoelectric transducers 3, 4, 5, which transmit the signal to electronic units 7, 8, 9, where waves are proportional to a specific group of particles of a certain size. After receiving a signal from electronic units 7-9, the information processing and presentation unit 11 provides a signal to the control unit 17, which generates a signal for switching the three-position solenoid valve 13.3 to a position that allows the controlled fluid 2 to flow out of the pipeline 1. After the controlled fluid 2 flows out, the control unit 17 generates a signal for switching three-position solenoid valves 13.2, 13.3 to a position that allows fluid to flow through pipeline 1, and the device goes to work in normal mode.

Thus, the use of the invention will allow for the measurement of the concentration of trapped solid particles from the air.

The device is industrially applicable, since it can be made on the basis of known elements. So, for example, the control unit can be made on the basis of integrated circuits, and solenoid valves on the basis of Burket solenoid valves. A container for collecting solid particles and a closed container for a reference liquid can be made using electric arc welding.

Claims (2)

1. A device for measuring the concentration of mechanical impurities in media, containing a pipeline with a controlled fluid, in which receiving piezoelectric agents are mounted at some distance from each other, made in the form of solid or split rings with piezoelectric layers deposited on the inner and outer surfaces of the rings, parallel to them the central axis, electrically connected to electronic blocks, a piezoelectric transducer connected to an electromagnetic oscillation generator, as well as a processing unit and Presentation of information related to the outputs of the electronic units and the electromagnetic oscillation generator, characterized in that an additional closed container for the reference liquid, a container for collecting particulate matter with a level sensor and a control unit are additionally introduced, while the container for collecting particulate matter is connected by a pipeline through a two-position solenoid valve with a closed container for a reference liquid and a three-position electric valve with a pipeline with a controlled liquid at the outlet of which tanovlen three-way solenoid valve, and a control unit electrically connected to the solenoid valves, the output of the processing unit and to provide information and the output level of the sensor. 2. A device for measuring the concentration of solids in liquid and air according to claim 1, characterized in that a time sensor is introduced into the information processing and presentation unit.

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