RU2204744C2 - Device for forming, changing and adjusting rate of flow of fluid medium - Google Patents

Abstract

FIELD: transfer of liquids in pipe lines ; various industries. SUBSTANCE: proposed device has vibrator with ultrasonic transducer including feedback elements with sensors, program- controlled and actuating mechanisms for control of parameters of vibrator and ultrasonic transducer; hollow low-frequency vibrator is streamlined in form; ultrasonic transducer and feedback elements may be located in or outside flow or they may perform function of walls of flow at different angles to flow. EFFECT: extended functional capabilities; reduced power requirements. 1 dwg

Description

 A device for creating, modifying and controlling the speed of a fluid flow can be used in various fields of production and, above all, in medicine, where the preservation of blood pressure is necessary, in case of weakening of the heart by any acute pathological condition.

State of the art
A device for reducing friction in pipelines and hoses, which contains a hollow body, inside which is located a vibrator, for example, an ultrasound, whose active organ is brought into the compartment with inlet and outlet nozzles for the transported fluid / 1 /.

 A device for reducing friction in pipelines and hoses, containing a low-frequency vibrator having a streamlined shape and fixed in the pipeline along its axis with the help of holders / 2 /.

 A device for reducing friction in pipelines and hoses, containing a low-frequency vibrator having a streamlined shape and fixed in the pipeline along its axis with the help of holders, and equipped with an ultrasonic emitter placed in the center of a hollow vibrator / 3 /.

The technical disadvantages of the known devices are:
- installation of a hollow cylinder of a larger diameter than the pipeline, which breaks the latter, this reduces its operational capabilities;
- the transmission of ultrasonic vibrations in a complex branched piping system also limits operational capabilities;
- high energy consumption for exciting the vibrator;
- there is no feedback, friction reduction - a vibrator, an ultrasonic emitter, which also limits the operational capabilities of the device, increases energy consumption, reduces efficiency;
- the location of the vibrator, ultrasonic emitter also limits the operational capabilities of the device.

SUMMARY OF THE INVENTION
An object of the invention is to expand the functionality for use in various fields of industry and medicine, while reducing energy consumption on the vibrator.

 The essence of the invention lies in the fact that the device for creating, modifying and controlling the speed of the fluid flow, containing a low-frequency vibrator having a streamlined shape, is equipped with an ultrasonic emitter located in the center of the hollow vibrator, and with feedback elements represented by sensors, software and an actuator, and a low-frequency vibrator, ultrasonic emitter, feedback elements are located in the stream, outside the stream, or are walls of the stream and close dance at different angles to the flow axis.

 The essence of the work is as follows. Axial ultrasonic radiation in the cavitation mode in a stream from a working ultrasonic emitter determines the decelerating effect on sound vibrations from the vibrator, as a result of which spherical sound waves turn into plane ones.

 Flat longitudinal sound waves determine in the flow the formation of rarefaction zones / with a reduced flux density / and zones with increased density. In rarefaction zones, the body of cavitation “nuclei” increases, which under the action of ultrasonic vibrations begin to pulsate with the frequency of the ultrasonic emitter, determining the propagation of ultrasound in the stream. In a zone with a high density of sound vibrations from the vibrator, cavitation “nuclei” on the flow axis collapse, and as you know, when the cavitation nuclei collapse on the flow axis, the sound pressure reaches several hundred atmospheres, which allows reducing the vibrator radiation power by hundreds of times even with feedback elements sensors, software and executive device to regulate the power and frequency and other characteristics of the vibrator and ultrasonic emitter and, accordingly, expand the functional, operational ionic capabilities of the device and, accordingly, reduce the energy consumption of the device.

 Thus, the claimed device meets the criteria of the invention of "Novelty."

 Comparison of the claimed device, solution, not only with the prototype, but also with other technical solutions in this technical field, did not reveal the signs that distinguish the claimed solution from the prototype, which allows us to conclude that the criterion of "Significant differences".

 The invention is illustrated in the drawing. The housing 3, on which the vibrator 1 and the ultrasonic emitter 2 are placed, is fixed in the pipeline 14 along the axis with the help of holders 4, and the space between the vibrator and the ultrasonic emitter is sealed with a sealant 5. The wires from the vibrator and the ultrasonic emitter are connected to the generators - sound and ultrasound, respectively 6 and 7 to 8 and 9.

 Feedback is made by a sensor 13, connected through wires with a program-control device 12, which in turn is connected to actuators 11 and 9, which control the parameters of the vibrator 1 and 2 through the sound generator 9 and the ultrasonic generator 8.

 The work is as follows. Axial ultrasonic radiation from the emitter 2, made of piezocrystals, magnetostrictive ferrites, etc., and operating in the cavitation mode, determines the decelerating effect on sound vibrations from the operation of the vibrator 1, made of piezocrystals, magnetically soft ferrites, polyvinylidene fluoride, etc., in as a result, spherical sound waves turn into plane waves, with the vibrator 1 and the ultrasonic emitter 2 mounted on the housing 3 and holders 4 made of plastic or metals. For installation in the circulatory system can be covered with graphite-benzalkonium-heparin coating. To excite the vibrator, you can use the generator UNI-3, ZG-102, etc. with a power of 1-5 W 9 through wires 7 mounted through the holder 4 and the housing 3, and to excite the ultrasonic emitter 2, you can use an ultrasonic generator such as UZG-111, UZG-123, etc. with a power of 1-5 W 8 through wires 6 mounted in the holder 4 and the housing 3.

 Flat longitudinal sound waves determine in the flow the formation of rarefaction zones / with a reduced flux density / and zones with increased density. In rarefaction zones, the body of cavitation “nuclei” increases, which under the action of ultrasonic vibrations begin to pulsate with the frequency of the ultrasonic emitter, determining the propagation of ultrasound in the stream. In a zone with a high density of sound vibrations from the vibrator, the cavitation “nuclei” on the flow axis collapse, and, as you know, when the cavitation nuclei collapse on the flow axis, the sound pressure reaches several hundred atmospheres, which makes it possible to reduce the vibrator radiation power by hundreds of times with elements The feedbacks presented by the sensor 13, made in the form of microelectrodes for medicine / human /, represent round stainless steel electrodes, the bioelectrical signals taken from the surface of the skeleton muscles under the influence of commands from the central nervous system. The electrodes can either be pressed against the skin / muscles /, or implanted into the muscles. The biopotentials discharged by the electrodes amount to several tens of microvolts; therefore, they are connected to the program-control device 12, which consists of preliminary amplification of the biopotentials in amplitude, which can be carried out on a voltage amplifier commercially available by the prosthetic industry, and then it is necessary to extract useful information about the commands coming from the central nervous system to the muscles. The envelope of a pulsating bioelectric signal is used as an informative parameter. After amplification by voltage, the alternating signal enters the information extraction unit, where it is rectified by diodes assembled according to the bridge circuit, being converted into a pulsating signal of the same sign. The ripple of the rectified signal is smoothed by the corresponding capacitor, after which a constant signal in sign is fed to the input of the power amplifier. The power amplifier is assembled on two transistors, galvanically coupled together, i.e. by direct current. The load of the second stage of the power amplifier includes a coil of an electromagnetic relay-actuator 10, 11 and a reversed drive of the engine, and with a separate supply to the input of one or the other channel of the amplifier, the engine rotates in the corresponding direction, changing the frequency of the sound and ultrasonic generator 8 and 9 and through the wires 6 and 7, respectively, by changing the frequency of the vibrator and the ultrasonic emitter, and accordingly the flow rate increases or decreases, therefore, when the device is installed in in the flow, it will allow to quickly / automatically / work in the "central nervous system-device" system and regulate the blood flow regime. A microprocessor, a microcomputer, a computer with certain programs taken from an ECG of a healthy person, and also actuators can be without a reversed engine can be involved in a program-controlling device.

 Feedback allows you to expand the functional, operational capabilities of the device and quickly adjust the flow rate.

Sources of information
1. SU, Copyright certificate 500383, M. cl F 15 D 1/02, 1976.

 2. SU, Copyright certificate 983337, M. cl. F 15 D 1/02, 1981

 3. SU, application, Patent 93033626/06/032915, M. cl. F 15 D 1/02, 1993.

Claims (1)

 A device for creating, modifying and controlling the flow rate of a fluid containing a vibrator fixed in the pipeline along the axis with the help of holders, is equipped with an ultrasonic emitter located in the center of the vibrator, characterized in that it includes feedback elements with sensors, a program-controlling and actuating device regulating the parameters of the vibrator and the ultrasonic emitter, and the vibrator is made low-frequency, hollow and has a streamlined shape, an ultrasonic emitter and elements of the return with ides may be disposed in the flow is a stream or flow are walls, fixed at different angles to the flow.