RU2656459C1 - Vortex acoustic nozzle - Google Patents

Vortex acoustic nozzle Download PDF

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Publication number
RU2656459C1
RU2656459C1 RU2017138646A RU2017138646A RU2656459C1 RU 2656459 C1 RU2656459 C1 RU 2656459C1 RU 2017138646 A RU2017138646 A RU 2017138646A RU 2017138646 A RU2017138646 A RU 2017138646A RU 2656459 C1 RU2656459 C1 RU 2656459C1
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RU
Russia
Prior art keywords
nozzle
chamber
form
connected
cylindrical
Prior art date
Application number
RU2017138646A
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Russian (ru)
Inventor
Олег Савельевич Кочетов
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Олег Савельевич Кочетов
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Priority to RU2017138646A priority Critical patent/RU2656459C1/en
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Publication of RU2656459C1 publication Critical patent/RU2656459C1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/265Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3415Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with swirl imparting inserts upstream of the swirl chamber
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods

Abstract

FIELD: devices for spraying liquids.
SUBSTANCE: invention relates to devices for spraying of liquids, solutions. Vortex acoustic nozzle comprises a body made in the form of a supply fitting with a central hole and rigidly connected to it coaxially with a cylindrical sleeve. In the sleeve there is a conical chamber for supplying liquid to the nozzle. Nozzle also contains an acoustic unit. Nozzle made in the form of an inverted glass is connected to the cylindrical sleeve, in its lower part. In the bottom of the cup there is a turbulent swirler of the liquid flow with at least two entries inclined to the axis of the nozzle in the form of cylindrical holes and a central cylindrical throttle opening connected to the mixing chamber of the nozzle, in series connected to the diffuser outlet chamber. Acoustic unit is located coaxially with the conical chamber and is made in the form of a coaxially located hollow resonance conical sleeve consisting of sections with resonant holes connected to the cavity for supplying compressed air or gas. Cavity is located between the inner surface of the cylindrical sleeve and the hollow resonance conical sleeve which is connected by means of inclined cylindrical holes with the mixing chamber of the nozzle. Cavity with the supply of compressed air through resonant holes is connected to an additional resonant chamber, which is in the form of an annular recess in a cylindrical sleeve, separated from the cavity by an annular partition in which resonance sleeves are fixed.
EFFECT: increasing spraying efficiency due to spray cone increasing.
6 cl, 1 dwg

Description

The invention relates to means for spraying liquids, solutions.

The closest technical solution to the claimed object is the nozzle according to the patent of the Russian Federation No. 2514862, F02C 7/24, containing a housing with a swirl chamber and a nozzle insert (prototype).

A disadvantage of the known nozzle is that it does not provide a wide spray pattern.

The technical result is an increase in spraying efficiency by increasing the spray pattern.

This is achieved by the fact that in a vortex acoustic nozzle containing a housing made in the form of a supply fitting with a central hole and rigidly connected to it coaxially with a cylindrical sleeve, in which there is a conical chamber for supplying fluid to the nozzle, as well as an acoustic unit, while in a cylindrical sleeve, in its lower part, a nozzle is made in the form of an inverted cup, in the bottom of which there is a turbulent swirl of air flow with at least two inputs inclined to the axis of the nozzle in the form cylindrical holes, and a Central cylindrical throttle hole connected to the nozzle mixing chamber, connected in series with the diffuser outlet chamber, and the acoustic unit is located coaxially with the conical chamber and made in the form of a coaxially spaced, hollow resonant conical sleeve consisting of sections with resonant holes, connected to the cavity for supplying compressed air or gas, which is located between the inner surface of the cylindrical sleeve and the hollow resonance a conical sleeve, which is connected through inclined cylindrical holes to the nozzle mixing chamber, and the cavity with compressed air inlet, through resonant holes, is connected to an additional resonant chamber made in the form of an annular recess in a cylindrical sleeve separated from the cavity by an annular partition in which fixed resonant bushings.

The drawing shows a diagram of a vortex acoustic nozzle.

The vortex acoustic nozzle includes a housing 1, which is made in the form of a supply fitting with a central hole 3, and rigidly connected to it and a coaxial cylindrical sleeve 2 with an internal thread. In the cylindrical sleeve 2, a conical chamber 4, coaxial to the housing, is located for supplying fluid to the nozzle 5, as well as an acoustic unit. A nozzle 5 made in the form of an inverted cup is coaxially connected to the cylindrical sleeve 2, in its lower part, by means of a thread, in the bottom 7 of which a turbulent swirl swirl of air flow is made with at least two inlet in the form of cylindrical holes 6 located in the end surface of the nozzle 5 formed by its bottom 7. In the end surface of the nozzle 5 is also made a Central cylindrical throttle hole 8 connected to the mixing chamber 9 of the nozzle connected in series with the diff patterned output chamber 10. Moreover, the effective area of the passage sections of the inclined cylindrical holes 6, taken together, and the Central hole 8 are equal to each other.

The acoustic unit is located coaxially with the conical chamber 4 and is made in the form of a conical chamber 4 and a coaxially located hollow resonant conical sleeve 12 consisting of sections 13 with resonant holes 14 connected to the cavity 15 connected to the supply of compressed air or gas 11. The cavity 15, located between the inner surface of the cylindrical sleeve 2 and the hollow resonant conical sleeve 12, is connected by means of inclined cylindrical holes 6, to the mixing chamber 9 of the nozzle 5. The cavity 15 with the supply of compressed air 11, through the resonant holes 17, is connected to the additional resonant chamber 16 made in the form of an annular recess in a cylindrical sleeve 2, separated from the cavity 15 by an annular partition 18, in which the resonant bushings 17 are fixed.

It is possible that on the inner surface of the central cylindrical throttle hole 8, located in the end surface of the nozzle 5, helical grooves are made for additional twisting of the fluid flow (not shown).

Vortex acoustic nozzle operates as follows.

The sprayed liquid enters the housing 1 through the central opening 3, then into the conical chamber 4, coaxial to the housing 1. After the conical chamber 4, the liquid is directed to the nozzle 5, and through the central cylindrical throttle opening 8 to the mixing chamber 9.

Air or gas under pressure enters through a nozzle for supplying compressed air 11 to the cavity 15 of the acoustic unit located between the inner surface of the cylindrical sleeve 2 and the hollow resonant conical sleeve 12 connected by means of inclined cylindrical holes 6 to the mixing chamber 9 of the nozzle 5.

At the same time, in the hollow resonant conical sleeve 12 with resonant holes 14, pressure surges of compressed air occur due to phenomena accompanying the operation of Helmholtz resonators, which are formed by sections 13 with resonant holes 14 of the resonant conical sleeve 12. In this case, the sizes of sections 13 and resonant holes 14 are determined the required required pulsation frequency of the nozzle 5 of the gas-liquid flow emerging from the mixing chamber 9, which contributes to an increase in the fineness of the spray nozzle. To increase the degree of fine dispersion of the spray, an additional resonant chamber 16 is provided, made in the form of an annular recess in a cylindrical sleeve 2, separated from the cavity 15 by an annular partition 18, in which the resonant sleeves are fixed 17. The additional resonant chamber 16, being an additional Helmholtz resonator, enhances the degree of fine dispersion of the spray gas-liquid flow nozzle.

In the output diffuser chamber 10, a divider is installed, made in the form of at least three spokes 18, each of which is fixed with one end on the outer surface of the diffuser output chamber 10, perpendicular to its surface, and the other in the surface of the body of revolution 19, for example, a ball , the axis of which coincides with the axis of the diffuser output chamber 10, and the body of revolution 19 is located in the lower part, behind a slice of the diffuser output chamber.

It is possible that the surface of the body of revolution 19, whose axis coincides with the axis of the diffuser output chamber 10, is made in the form of an ellipsoid, the small axis of which is axisymmetric to the axis of the diffuser output chamber 10 (not shown).

A variant is possible when a diffuser 20 is attached to the end surface of the cylindrical sleeve 2, coaxial with the body 1, coaxially with the diffuser chamber 10, the cut surface of which lies in a plane below the surface of the divider rotation body 19.

A variant is possible when the surface of the body of revolution 19, made in the form of a ball, is perforated.

A variant is possible when elements are mounted to the surface of the body of revolution 19, made in the form of a ball, with the possibility of its rotation, which rotate it, for example, in the form of segments of screw blades (not shown in the drawing).

It is possible that on the inner surface of the central cylindrical throttle hole 8, located in the end surface of the nozzle 5, helical grooves are made for additional twisting of the fluid flow (not shown).

Vortex acoustic nozzle operates as follows.

The sprayed liquid enters the housing 1 through the central opening 3, then into the conical chamber 4, coaxial to the housing 1. After the conical chamber 4, the liquid is directed to the nozzle 5, and through the central cylindrical throttle opening 8 to the mixing chamber 9.

The acoustic unit of the nozzle operates as follows.

Air or gas under pressure enters through a nozzle for supplying compressed air 11 to a cavity 15 located between the inner surface of the cylindrical sleeve 2 and the hollow resonant conical sleeve 12, connected via inclined cylindrical holes 6, to the mixing chamber 9 of the nozzle 5.

At the same time, air pressure surges occur in the hollow resonant conical sleeve 12 with the resonant holes 14 due to the phenomena accompanying the operation of Helmholtz resonators, which are formed by sections 13 with the resonant holes 14 of the resonant conical sleeve 12. The dimensions of the sections 13 and resonant holes 14 are determined by the necessary the required pulsation frequency of the nozzle 5 of the gas-liquid stream emerging from the mixing chamber 9, which contributes to an increase in the fineness of the spray nozzle. To increase the degree of fineness of the spray, an additional resonant chamber 16 is provided, made in the form of an annular recess in a cylindrical sleeve 2, separated from the cavity 15 by an annular partition 18 in which the resonant holes are fixed 17. The additional resonance chamber 16, being an additional Helmholtz resonator, enhances the degree of fineness of the spray gas-liquid flow nozzle.

Claims (6)

1. A vortex acoustic nozzle comprising a housing made in the form of a supply fitting with a central hole and a coaxially cylindrical sleeve rigidly connected to it, in which there is a conical chamber for supplying fluid to the nozzle, as well as an acoustic unit, while to the cylindrical sleeve, in the lower part is connected a nozzle made in the form of an inverted glass, in the bottom of which there is a turbulent swirl of the fluid flow with at least two inlets in the form of cylindrical openings inclined to the axis of the nozzle th and central cylindrical throttle aperture, connected to the nozzle mixing chamber, connected in series with the diffuser output chamber, characterized in that this acoustic unit is located coaxially with the conical chamber and is made in the form of a coaxially located hollow resonant conical sleeve consisting of sections with resonant holes connected to the cavity for supplying compressed air or gas, which is located between the inner surface of the cylindrical sleeve and the hollow resonance conical sleeve, which is connected through inclined cylindrical holes to the mixing chamber of the nozzle, while the cavity with the supply of compressed air, through resonant holes is connected to an additional resonant chamber, made in the form of an annular recess in a cylindrical sleeve, separated from the cavity by an annular partition in which are fixed resonant bushings.
2. The vortex acoustic nozzle according to claim 1, characterized in that a divider is attached to the end surface of the output diffuser chamber, made in the form of at least three spokes, each of which is fixed at one end to the outer surface of the diffuser output chamber perpendicular to its surface, and for others, in the surface of a body of revolution, for example, a ball whose axis coincides with the axis of the diffuser outlet chamber, and the body of revolution is located in the lower part behind a slice of the diffuser outlet chamber.
3. The vortex acoustic nozzle according to claim 1, characterized in that the surface of the body of revolution, the axis of which coincides with the axis of the diffuser output chamber, is made in the form of an ellipsoid, the small axis of which is axisymmetric to the axis of the diffuser output chamber.
4. The vortex acoustic nozzle according to claim 1, characterized in that a diffuser is attached to the end surface of the cylindrical sleeve coaxial with the housing, coaxially to the diffuser chamber, the cut surface of which lies in a plane below the surface of the divider rotation body.
5. The vortex acoustic nozzle according to claim 1, characterized in that on the inner surface of the central cylindrical throttle hole located in the end surface of the nozzle, helical grooves are made for additional twisting of the fluid flow.
6. The vortex acoustic nozzle according to claim 1, characterized in that elements that rotate it, for example, in the form of segments of helical blades, are mounted to the surface of a body of revolution made in the form of a ball, with the possibility of its rotation.
RU2017138646A 2017-11-08 2017-11-08 Vortex acoustic nozzle RU2656459C1 (en)

Priority Applications (1)

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RU2017138646A RU2656459C1 (en) 2017-11-08 2017-11-08 Vortex acoustic nozzle

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680793A (en) * 1970-11-09 1972-08-01 Delavan Manufacturing Co Eccentric spiral swirl chamber nozzle
CH646619A5 (en) * 1977-10-14 1984-12-14 Werding Winfried J Spray nozzle
EP0794383A2 (en) * 1996-03-05 1997-09-10 Abb Research Ltd. Pressurised atomising nozzle
RU2422724C1 (en) * 2010-05-14 2011-06-27 Олег Савельевич Кочетов Swirler
RU2514862C1 (en) * 2013-04-25 2014-05-10 Олег Савельевич Кочетов Swirl atomiser
RU2564279C1 (en) * 2014-05-22 2015-09-27 Олег Савельевич Кочетов Kochetov's swirl atomiser
RU2612631C1 (en) * 2015-11-27 2017-03-09 Татьяна Дмитриевна Ходакова Vortex jet

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680793A (en) * 1970-11-09 1972-08-01 Delavan Manufacturing Co Eccentric spiral swirl chamber nozzle
GB1366581A (en) * 1970-11-09 1974-09-11 Delavan Manufacturing Co Eccentric spiral swirl chamber nozzle
CH646619A5 (en) * 1977-10-14 1984-12-14 Werding Winfried J Spray nozzle
EP0794383A2 (en) * 1996-03-05 1997-09-10 Abb Research Ltd. Pressurised atomising nozzle
RU2422724C1 (en) * 2010-05-14 2011-06-27 Олег Савельевич Кочетов Swirler
RU2514862C1 (en) * 2013-04-25 2014-05-10 Олег Савельевич Кочетов Swirl atomiser
RU2564279C1 (en) * 2014-05-22 2015-09-27 Олег Савельевич Кочетов Kochetov's swirl atomiser
RU2612631C1 (en) * 2015-11-27 2017-03-09 Татьяна Дмитриевна Ходакова Vortex jet

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