RU2015749C1 - Hydrodynamic vibration generator - Google Patents

Abstract

FIELD: vibration generators. SUBSTANCE: hydrodynamic vibration generator has housing 1 with tangential inlet channels 2, swirl chamber 3 and diffuser 6 with angle of opening φ. Required frequency and amplitude of generated vibrations are provided by preset relationship between geometrical dimensions of hydrodynamic vibration generator and hydrodynamic parameters of handled liquid medium. Coincidence of generated vibration frequency and natural frequency of treated medium provides resonant mode of operation. EFFECT: enlarged operating capabilities. 10 dwg

Description

 The invention relates to the production or transmission of mechanical vibrations using a flowing medium, and more particularly relates to hydrodynamic oscillation generators.

 Known stepped cavitation generator containing a stator and a rotor of varying cross section placed inside it, the working surfaces of the stator and rotor are made in the form of two cylindrical sections of different diameters with longitudinal protrusions. Mixing of the supplied liquid media occurs in a narrow gap between the rotor and the stator under the influence of the created cavitation of the liquid medium.

 However, the known generator has a low oscillation power due to their attenuation in a narrow gap between the rotor and the stator, which does not significantly intensify the mixing process characteristic of the resonant mode. In addition, the need for power supply does not allow the use of the generator in hard-to-reach places, for example, in wells.

 Also known is a vortex generator comprising a housing with a central channel formed therein, vortex chambers symmetrically placed relative to the longitudinal axis, and a channel for supplying a passive medium. The mixing of the main fluid flow and the passive medium in the known generator takes place in vortex chambers, where ultrasonic vibrations are excited, while the passive medium is ejected by the main fluid flow into the vortex chambers.

 However, in the known generator, pressure fluctuations in the liquid occur in a limited space (directly in the vortex chambers) and, due to attenuation, have low power at the outlet of the vortex generator.

 In addition, using a known generator it is impossible to carry out a change in the excited oscillation frequency in a wide range and therefore the resonant mode of operation of the generator is not achieved. The need to supply a passive medium into the vortex chambers, as well as the large geometric dimensions of the generators, make the generator unsuitable for operation in wells. The complex configuration of the internal cavities leads to the high cost of the generator.

 Known hydrodynamic oscillation generator, comprising a housing with input tangential channels, with a vortex chamber connected by tangential channels with a cavity of the supply pipe, with an axial output channel coaxially located and hydraulically connected with the vortex chamber. The known hydrodynamic oscillation generator also contains a funnel for supplying emulsifiable fluid into the vortex chamber, while the longitudinal axis of the funnel and the vortex chamber coincide and are perpendicular to the longitudinal axis of the supply pipe. The known hydrodynamic oscillation generator also contains a reflector in the form of a parabolloid of revolution connected to the axial output channel. When the fluid flows in the vortex chamber of the generator, a vacuum is formed leading to pressure fluctuations in the fluid. The reflector causes additional amplification of the oscillations.

 However, the known generator does not allow you to create fluctuations of a given frequency and amplitude for the implementation of the resonant mode of operation.

 The basis of the invention is the task of creating such a hydrodynamic oscillation generator, which would allow you to create fluctuations of a given frequency and amplitude to implement a resonant mode of operation, which ensures the intensification of heat and mass transfer processes.

- 1, (1) а отношение площади поперечного сечения к площади боковой поверхности вихревой камеры подчиняется зависимости

= 0.325

, (2) где N =

cos

arcsin

1-

;
M =

+ gH; R =

; d =

;
ζ₁ - коэффициент гидравлических потерь в диффузоре;
S₁ - площадь входного поперечного сечения диффузора, м²;
S₂ - площадь выходного поперечного сечения диффузора, м²;
S₃ - площадь поперечного сечения вихревой камеры, м²;
S₄ - площадь боковой поверхности вихревой камеры, м²;
S₅ - площадь входных тангенциальных каналов, м²;
L - длина вихревой камеры, м;
Q - расход жидкости через генератор, м³/с;
R - приведенный радиус вихревой камеры, м;
ζ₂ - коэффициент гидравлических потерь во входных тангенциальных каналах; d - приведенный диаметр входных тангенциальных каналов, м;
Р_о - давление нагнетания жидкости в подающем трубопроводе, Па;
ρ - плотность жидкости, прокачиваемой через генератор, кг/м³;
Н - высота столба жидкости в полости подводящего трубопровода, м.The problem is solved in that in a hydrodynamic oscillation generator containing a housing with input tangential channels, with a vortex chamber connected by tangential channels with a cavity of the supply pipe, with an axial output channel coaxially located and hydraulically connected with the vortex chamber, according to the invention, the output channel is made in the form of a diffuser with an opening angle φ determined by the dependence
φ =

- 1, (1) and the ratio of the cross-sectional area to the area of the side surface of the vortex chamber obeys the dependence

= 0.325

, (2) where N =

cos

arcsin

1-

;
M =

+ gH; R =

; d =

;
ζ ₁ - coefficient of hydraulic losses in the diffuser;
S ₁ - the input cross-sectional area of the diffuser, m ² ;
S ₂ - the output cross-sectional area of the diffuser, m ² ;
S ₃ - the cross-sectional area of the vortex chamber, m ² ;
S ₄ - the area of the lateral surface of the vortex chamber, m ² ;
S ₅ - the area of the input tangential channels, m ² ;
L is the length of the vortex chamber, m;
Q - fluid flow through the generator, m ³ / s;
R is the reduced radius of the vortex chamber, m;
ζ ₂ - coefficient of hydraulic losses in the input tangential channels; d is the reduced diameter of the input tangential channels, m;
P _{about the} pressure of the fluid in the feed pipe, Pa;
ρ is the density of the fluid pumped through the generator, kg / m ³ ;
N - the height of the liquid column in the cavity of the supply pipe, m

≥ h ≥

, (3) где h - высота тела вращения, м;
S₃ - площадь поперечного сечения вихревой камеры, м²;
Возможно между вихревой камерой и диффузором выполнить дополнительный диффузор, причем сопряжение диффузоров выполнить в виде части поверхности тела вращения.It is possible to perform the end part of the vortex chamber in the form of a body of revolution with a sharpness facing the diffuser, moreover, the base area of the body of revolution is equal to the cross-sectional area of the vortex chamber, and the height of the body of revolution is determined by the ratio
3

≥ h ≥

, (3) where h is the height of the body of revolution, m;
S ₃ - the cross-sectional area of the vortex chamber, m ² ;
It is possible between the vortex chamber and the diffuser to make an additional diffuser, and the pairing of the diffusers to perform as part of the surface of the body of revolution.

=

, (4) где S₃ - площадь поперечного сечения вихревой камеры, м²;
S₄ - площадь боковой поверхности вихревой камеры, м²;
R - приведенный радиус вихревой камеры, м;
r - приведенный радиус входного поперечного сечения диффузора, м, а выходную часть диффузора выполнять в виде тела вращения.Perhaps the ratio of the cross-sectional area to the area of the side surface of the vortex chamber to perform with the ratio

=

, (4) where S ₃ is the cross-sectional area of the vortex chamber, m ² ;
S ₄ - the area of the lateral surface of the vortex chamber, m ² ;
R is the reduced radius of the vortex chamber, m;
r is the reduced radius of the input cross section of the diffuser, m, and the output part of the diffuser is in the form of a body of revolution.

 It is possible to provide a hydrodynamic oscillation generator with a resonant chamber with a variable volume placed on the opposite side of the diffuser and hydraulically connected with the vortex chamber.

 The problem is solved in that in a hydrodynamic oscillation generator containing a housing with input tangential channels, with a vortex chamber connected by tangential channels with a cavity of the supply pipe, with an axial output channel coaxially located and hydraulically connected with the vortex chamber, according to the invention, it contains a second the output channel in the form of a diffuser with an opening angle φ and placed coaxially and on the opposite side of the vortex chamber.

=

·

, (5) где ω₁ - частота колебаний давления жидкости в вихревой камере, Гц;
ω₂ - частота колебаний давления жидкости в дополнительной вихревой камере, Гц;
L₁ - длина вихревой камеры, м;
L₂ - длина дополнительной вихревой камеры, м;
S₃ - площадь поперечного сечения вихревой камеры, м²;
S₆ - площадь поперечного сечения дополнительной вихревой камеры, м².It is possible between the vortex chamber and one of the diffusers to perform an additional vortex chamber communicated with the cavity of the supply pipe by additional tangential channels, with the ratio of the cross-sectional area of the additional vortex chamber to the cross-sectional area of the vortex chamber, subject to the following relationship:

=

·

, (5) where ω ₁ is the frequency of oscillations of the fluid pressure in the vortex chamber, Hz;
ω ₂ - the frequency of the fluid pressure in the additional vortex chamber, Hz;
L ₁ - the length of the vortex chamber, m;
L ₂ - the length of the additional vortex chamber, m;
S ₃ - the cross-sectional area of the vortex chamber, m ² ;
S ₆ is the cross-sectional area of the additional vortex chamber, m ² .

 The problem is solved in that in a hydrodynamic oscillation generator containing a housing with input tangential channels, with a vortex chamber connected by tangential channels with a cavity of the supply pipe, with an axial output channel coaxially located and hydraulically connected with the vortex chamber, according to the invention, in the cavity of the supply two annular protrusions are made in the pipeline, between which a spring-loaded annular protrusion of the housing is placed in contact with the ring closest to the tangential channels a protrusion, while between the annular protrusions in the supply pipe there are outlet openings.

 The invention allows to significantly increase heat and mass transfer processes, leading to an increase in the rate of fluid filtration in a porous medium, to an increase in the degree of dispersion and homogeneity of emulsions and suspensions.

 In FIG. 1 shows a General view of a hydrodynamic oscillation generator, a longitudinal section; in FIG. 2 is a section BB in FIG. 1; in FIG. 3 is a general view of a hydrodynamic oscillation generator, the end part of the vortex chamber of which is made in the form of a body of revolution with a pointed edge, a longitudinal section; in FIG. 4 is a general view of a hydrodynamic oscillation generator with an additional diffuser, a longitudinal section; in FIG. 5 is a general view of a hydrodynamic oscillation generator with two output channels, a longitudinal section; in FIG. 6 is a view of a hydrodynamic oscillation generator with an additional swirl chamber, a longitudinal section; in FIG. 7 is a general view of a hydrodynamic oscillation generator with a vortex chamber in the form of a sphere and an output diffuser in the form of a body of revolution, a longitudinal section; in FIG. 8 is a general view of a hydrodynamic oscillation generator with a resonant chamber, a longitudinal section; in FIG. 9 is a general view of a hydrodynamic oscillation generator with a spring-loaded housing, a longitudinal section; in FIG. 10 is a diagram of the installation of mass transfer processes in multicomponent liquid media.

 The invention allows to intensify heat and mass transfer processes in various industrial industries, for example, it allows to increase the speed of drilling wells, oil recovery, improve the quality of the prepared emulsions and suspensions, allows the treatment of functional disorders of the vascular system.

 The hydrodynamic oscillation generator comprises a housing 1 (Fig. 1) with tangential inlet channels 2, a swirl chamber 3 connected by tangential channels 2 with a cavity 4 of the supply pipe 5, and an axial output channel made in the form of a diffuser 6 with an opening angle φ. The longitudinal axis 7 of the vortex chamber 3 and the longitudinal axis 8 of the supply pipe 5 are the same. The output channel is coaxially located and hydraulically connected with the vortex chamber 3. The housing 1 is connected to the supply pipe 5 by means of a thread 9. The opening angle φ of the diffuser 6 is determined by dependence (1).

The ratio of the cross-sectional area S ₁ to the area of the side surface S _{2 of the} vortex chamber 3 obeys the dependence (2).

 In a specific embodiment, in the housing 1 (Fig. 2) there are two tangential input channels 2.

 A variant of the hydrodynamic oscillation generator, in which the end part of the vortex chamber 3 is made in the form of a body of revolution 10 (Fig. 3) with a pointed 11 facing the diffuser 6. The area of the base 12 of the body of revolution 10 is equal to the cross-sectional area of the vortex chamber 3, and the height h of the body of revolution is determined by relation (3). Between the vortex chamber 3 and the diffuser 6 it is possible to place an additional diffuser 13 (Fig. 4). The coupling of the diffusers 6 and 13 is made in the form of part 14 of the surface of the body of revolution.

 The ratio of the cross-sectional area to the area of the side surface of the vortex chamber 3 (Fig. 5) is determined by dependence (4), and the output part of the diffuser 6 is made in the form of a body of revolution 15 (Fig. 5).

 The hydrodynamic oscillation generator can be equipped with a resonant chamber 16 (Fig. 6) with a variable volume by means of a piston 17 with a rod 18. The resonant chamber 16 is placed on the opposite side of the diffuser 6 and is hydraulically connected to the vortex chamber 3. The diffuser 6 is made in the form of a rotation body 19.

 It is possible to perform in the housing of the second output channel 20 (Fig. 7) in the form of a diffuser with an opening angle φ, placed coaxially on the opposite side of the vortex chamber 3, and the longitudinal axis 7 of the vortex chamber 3 is perpendicular to the longitudinal axis 8 of the supply pipe 5. At the end of the supply pipe 5, plug 21 is located.

 Between the vortex chamber 3 (Fig. 8) and the diffuser 20 there is an additional vortex chamber 22 connected with the cavity of the supply pipe 5 by additional tangential channels 23. The ratio of the cross-sectional area of the additional chamber 22 to the cross-sectional area of the vortex chamber 6 obeys dependence (5).

 It is possible in the cavity of the supply pipe 5 to perform two annular protrusions 24 and 25 (Fig. 9); between which an annular protrusion 27 of the housing 1, spring-loaded by means of a spring 26, is placed, in contact with the annular protrusion 24 closest to the tangential channels, and there are outlet openings 28 between the annular protrusions 24 and 25 in the supply pipe 5.

 To intensify mass transfer processes in multicomponent liquid media, a setup is used, the circuit of which is shown in FIG. 10. The installation comprises a working tank 29 with a multicomponent medium 30, for example, a mixture of cutting fluid, in which a hydrodynamic oscillation generator 31 is placed, connected via a pipe 32 to the outlet of the pump 33, the input of which is connected to a pipe 32 with a capacity 29. For control the process of mass transfer on the pipe 32 installed valves 34. The valve 35 serves to supply the cooked product to the consumer.

 Hydrodynamic oscillator operates as follows.

+

M-

ζ₂

, (6) где r_к - радиус кавитационной каверны, м;
Ω - собственная частота обрабатываемой системы (например, 30, фиг. 10), Гц.From the supply pipe (arrow A) through the inlet tangential channels 2 (Fig. 1), fluid flows into the vortex chamber 3. A cavitation cavity is formed in the vortex chamber 3, which performs self-oscillations, from which cavitation bubbles come off and are carried into the diffuser 6, where they collapse, which leads to the creation of powerful pressure waves, the given repetition rate of which is determined by the formula
Ω =

+

M-

ζ ₂

, (6) where r _k is the radius of the cavitation cavity, m;
Ω is the natural frequency of the processed system (for example, 30, Fig. 10), Hz.

 The maximum amplitude of pressure waves (for each of the given frequencies Ω) will be determined by relations (1) and (2).

Equation (1) gives a range of variation of the angle φ of the diffuser 6 (Fig 1.), Wherein a lower limit (of the order ^of 12-15) is determined by the need to create a desired pressure gradient in the diffuser 6 and the upper ^(about 30-35) - elevated in the diffuser gidropoteryami 6.

 Formula (2) determines the limits of change in the size of the cavitation cavity. The lower limit determines the condition for the existence of self-oscillations of the cavitation cavity, and the upper one takes into account a sharp drop in the amplitude of the pressure waves as a result of the cavitation cavity leaving the diffuser 6, which leads to a drop in efficiency.

 As a result, acting on a system (for example, 30, Fig. 10), which has its own frequency Ω, we create a resonance regime in which the rate of mass transfer processes increases significantly, for example, the dispersion of prepared emulsions increases, and the rate of fluid filtration in porous media increases.

, чтобы вызвать требуемую неустойчивость, но быть меньше 3

, чтобы не привести к значительным гидропотерям, т.е. к снижению КПД.A hydrodynamic oscillation generator, in which, to expand the range of changes in the frequency of self-oscillations of the cavitation cavity, the upper end part of the vortex chamber 3 (Fig. 3) is made in the form of a body of revolution 10 with a taper 11, which makes it possible to increase the instability of the fluid flow below the taper when the fluid flows through the tangential channels 2 11, and the height h of the body of revolution must be greater

to cause the required instability, but be less than 3

so as not to cause significant water loss, i.e. to reduce efficiency.

 The hydrodynamic generator with an additional diffuser 13 (Fig. 4) allows you to create another local zone of high pressure and, therefore, the collapse zone of cavitation bubbles (in the interface 14 of the diffusers), which increases the pressure amplitude in the liquid when the cavitation bubbles collapse and, accordingly, the efficiency hydrodynamic oscillation generator.

=

.Hydrodynamic oscillation generator, in which the vortex chamber 3 (Fig. 5) is made in the form of a body of revolution, which corresponds to the following size ratio:

=

.

 This vortex chamber allows you to create a cavitation cavity of a larger specific volume (compared with the size of the housing) and thereby reduce the oscillation frequency compared to a cylindrical cavity and to work in systems with a low natural frequency.

 The implementation of the output part of the diffuser in the form of a body of revolution allows you to reduce the pressure on the axis of symmetry 7 and thereby increase the volume of the cavitation cavity in the vortex chamber 3.

 A hydrodynamic oscillation generator with a second output channel 20 (Fig. 7) allows to obtain higher oscillation amplitudes due to increased fluid flow as a result of the redistribution of fluid flow through the tangential input channels 2 between two output channels 6 and 20.

 A hydrodynamic oscillation generator with a second vortex chamber 22 (Fig. 8) makes it possible to form a second cavitation cavity when fluid flows along arrow A through tangential channels 23 into the second output channel 20. The interaction of two cavitation cavities gives rise to frequency beats and, accordingly, the possibility of obtaining ultra-low frequencies (up to tens of hertz).

 A hydrodynamic oscillation generator with a spring-loaded annular protrusion 27 (Fig. 9) allows to obtain oscillations with high amplitude at a low frequency by creating conditions for water hammer during compression of the spring 26.

A multicomponent liquid medium is pumped through a hydrodynamic generator 31 (FIG. 10) located in a working vessel 29 with a multicomponent liquid medium 30 having a natural frequency. Selecting the sizes (S ₁ , S ₂ , S ₃ , S ₄ , S ₅ , S ₆ , φ, h, L ₁ , L ₂ , L) of the hydrodynamic oscillator at fixed pressure and flow rate (or, conversely, at fixed geometric the size of the oscillation generator, choosing the flow rate and pressure), you can get the frequency (with amplitude P _m ) of the radiation of the generator, equal to the natural frequency Ω of the system. Thus, creating oscillations with a given frequency Ω and amplitude P _m , the resonant mode in the system is ensured, which makes it possible to intensify mass transfer processes.

The initial components of the emulsion of cutting fluid (coolant) for metal cutting machines — emulsol, sodium nitrite, soda ash and water are fed into a working tank 29 (Fig. 10). Then, the natural frequency Ω of the multicomponent liquid medium 30 is determined, for example, Ω = 1800 Hz. Based on the performance of the pump 33, for example, Q = 2 x 10 ^-3 m ³ / s, the density of the multicomponent liquid 30, (for example ρ = 1050 kg / m ³ ) and other parameters, as well as setting the area value of each of the two tangential input channels (for example, S ₅ = 16 x 10 ^-6 m ² ), according to relation (6) for Ω = 1800 Hz, the cross-sectional area of the vortex chamber S ₃ = 98 x 10 ^-6 m ² is determined, which corresponds to the diameter of the cylindrical vortex chamber 2R = 11 , 1 x 10 ^-3 m.

Further, according to dependence (2), we determine the ratio of the cross section and the vortex chamber, which in this case is S ₃ / S ₄ = 0.07 with the length of the cylindrical vortex chamber L = 40 x 10 ^-3 m.

Assuming the area of the inlet section of the diffuser to be equal to the cross-sectional area of the vortex chamber S ₁ = S ₃ = 98 x 10 ^-6 m ² , and also setting the area of the output section of the diffuser S ₂ = 850 x 10 ^-6 m ² and using the experimental coefficient ζ ₁ = 1 , 2 according to dependence (1) we determine the opening angle of the diffuser φ = 29 ^about .

Thus, we calculate the hydrodynamic oscillation generator (Fig. 1) with geometric dimensions:
two tangential input channels of circular cross section d = 2.4 x 10 ^-3 m;
the radius of the cylindrical vortex
howling chamber R = 5.55 x 10 ^-3 m
the length of the cylindrical vortex
howling chamber L = 40 x 10 ^-3 m
the opening angle of the diffuser φ = 29 ^about .

This generator, with a fluid flow rate through it Q = 2 × 10 ^-3 m ³ / s in the working tank (33), allows you to create oscillations of a given frequency Ω = 1800 Hz, which is the natural frequency of a multicomponent liquid medium (coolant). Thus, the resonant mode of operation of the hydrodynamic generator is carried out, which ensures the intensification of heat and mass transfer processes, increasing the degree of dispersion and stability over time, as well as the homogeneity of the coolant. Also reduced cooking time.

 The invention can be used to intensify heat and mass transfer processes in multiphase gas-liquid-solid systems in the engineering, oil and gas, geological, chemical, food industries, in medicine and pharmacology, in the preparation of emulsions and suspensions of high dispersion, well drilling, bottom-hole treatment wells, homogenization of liquid food products, ultrafiltration of process fluids, as well as in the treatment of functional disorders of the vascular system, hydroworm therapy and gum disease, extracting substances from medicinal herbs.

Claims (8)

1. HYDRODYNAMIC OSCILLATOR GENERATOR, comprising a housing with inlet tangential channels, a vortex chamber, connected by tangential channels with a cavity of the supply pipe with an axial outlet channel, coaxially located and hydraulically connected with the vortex chamber, characterized in that the output channel is made in the form of a diffuser with an opening angle φ determined by the dependence
φ =

- 1,
and the ratio of the cross-sectional area to the area of the side surface of the vortex chamber obeys the dependence

= 0.325

×
×

;
N =

cos

arcsin

1-

,
where M =

+ gH; R =

; d =

;
ζ ₁ - coefficient of hydraulic losses in the diffuser;
ζ ₂ - coefficient of hydraulic losses in the input tangential channels;
S ₁ - the input cross-sectional area of the diffuser, m ² ;
S ₂ - the output cross-sectional area of the diffuser, m ² ;
S ₃ - the cross-sectional area of the vortex chamber, m ² ;
S ₄ - the area of the lateral surface of the vortex chamber, m ² ;
S ₅ - the area of the input tangential channels, m ² ;
L is the length of the vortex chamber, m;
Q - fluid flow through the generator, m ³ / s;
R is the reduced radius of the vortex chamber, m;
d is the reduced diameter of the input tangential channels, m;
P _about - the pressure of the fluid in the feed pipe, Pa;
ρ is the density of the fluid pumped through the generator, kg / m ³ ;
H is the height of the liquid column in the cavity of the supply pipe above the generator, m 2. The oscillation generator according to claim 1, characterized in that the end part of the vortex chamber is made in the form of a body of revolution with a sharpness facing the diffuser, the base area of the body of revolution being equal to the cross-sectional area of the vortex chamber, and the height h of the body of revolution is determined by the ratio
3

≥ h≥

.  3. The oscillation generator according to claims 1 and 2, characterized in that between the vortex chamber and the diffuser there is an additional diffuser, and the coupling of the diffusers is made as part of the surface of the body of revolution. 4. The oscillation generator according to claim 1, characterized in that the ratio of the cross-sectional area to the area of the side surface of the vortex chamber is determined by the expression

=

,
where r is the reduced radius of the input cross section of the diffuser, m,
and the output part of the diffuser is made in the form of a body of revolution.  5. The oscillation generator according to claim 1, characterized in that it is equipped with a resonant chamber with a variable volume, placed on the opposite side of the diffuser and hydraulically connected with the vortex chamber.  6. Hydrodynamic oscillation generator containing a housing with input tangential channels, with a main vortex chamber connected by tangential channels with a cavity of the supply pipe, with an axial output channel coaxially located and hydraulically connected with the main vortex chamber, characterized in that it contains a second output channel in the form of a diffuser with an opening angle φ, placed coaxially with the vortex chamber from the side opposite to the first output channel. 7. The oscillation generator according to claim 6, characterized in that between the main vortex chamber and one of the diffusers there is an additional vortex chamber connected with the cavity of the supply pipe by additional tangential channels, with the ratio of the cross-sectional area S _{6 of the} additional vortex chamber to the cross-sectional area S ₃ section of the main vortex chamber, obeying the following relationship:

=

·

,
where ω ₁ , ω ₂ - frequency of fluid pressure fluctuations in the primary and secondary vortex chambers, respectively, Hz;
L ₁ , L ₂ - the length of the primary and secondary vortex chambers, respectively, m  8. An oscillation generator comprising a housing with inlet tangential channels, with a vortex chamber connected by tangential channels with a cavity of the supply pipe, with an axial output channel coaxially located and hydraulically connected with the vortex chamber, characterized in that two annular protrusions are made in the cavity of the supply pipe between which there is a spring-loaded annular protrusion of the housing in contact with the annular protrusion closest to the tangential channels, while between the annular protrusions and in the rootstock The outlet pipe has outlet openings.

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