RU2657487C1 - Acoustic atomizer - Google Patents

Acoustic atomizer Download PDF

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Publication number
RU2657487C1
RU2657487C1 RU2017138644A RU2017138644A RU2657487C1 RU 2657487 C1 RU2657487 C1 RU 2657487C1 RU 2017138644 A RU2017138644 A RU 2017138644A RU 2017138644 A RU2017138644 A RU 2017138644A RU 2657487 C1 RU2657487 C1 RU 2657487C1
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RU
Russia
Prior art keywords
nozzle
form
made
resonant
acoustic
Prior art date
Application number
RU2017138644A
Other languages
Russian (ru)
Inventor
Олег Савельевич Кочетов
Original Assignee
Олег Савельевич Кочетов
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Application filed by Олег Савельевич Кочетов filed Critical Олег Савельевич Кочетов
Priority to RU2017138644A priority Critical patent/RU2657487C1/en
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Publication of RU2657487C1 publication Critical patent/RU2657487C1/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
    • 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. Acoustic atomizer 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 which a conical chamber for supplying liquid to the nozzle is located. Acoustic atomizer also comprises an acoustic unit. Nozzle made in the form of an inverted barrel is connected to the cylindrical sleeve, in its lower part. In the bottom of the barrel there is a turbulent swirler of the air flow with at least two inclinations 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 consists of two resonant structures. One of the resonant structures is located in the cylindrical sleeve upper part and is made in the form of at least two Helmholtz resonators consisting of resonator spherical chambers with neck. Second resonant structure adjoins the nozzle with the bottom and cylindrical throttle opening end surface and is made in the form of additional resonant chamber, made in the form of annular recess in the cylindrical sleeve, separated from the acoustic cavity by the annular partition, in which resonant bushings are fixed.
EFFECT: increased spraying efficiency due to spray cone increasing.
1 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 an 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 to the cylindrical sleeve , in its lower part, a nozzle is made, made in the form of an inverted glass, in the bottom of which there is a turbulent swirl of air flow with at least two cylinder-shaped inlets inclined to the axis of the nozzle holes and a central cylindrical throttle bore connected to the nozzle mixing chamber connected in series with the diffuser outlet chamber, the acoustic unit consisting of two resonant structures, one of which is located in the upper part of the cylindrical sleeve and is made in the form of at least two Helmholtz resonators consisting of resonator spherical chambers with a neck, and the second resonant structure adjoins the end surface of the nozzle with a bottom and a cylindrical throttle bore It is made in the form of an additional resonance chamber made in the form of an annular recess in a cylindrical sleeve, separated from the acoustic cavity by an annular partition in which the resonant bushings are fixed.

The drawing shows a diagram of an acoustic nozzle.

The 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 liquid 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 of the air flow is made with at least two entries inclined to the nozzle axis 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 also has a Central cylindrical throttle hole 8 for supplying fluid connected to the mixing chamber 9 of the nozzle, sequentially about connected to the diffuser outlet chamber 10. Air or gas under pressure enters through the nozzle for supplying compressed air 11 to the acoustic cavity 14 located between the inner surface of the cylindrical sleeve 2 and the outer surface 13 of the conical chamber 4.

The acoustic unit consists of two resonant structures, one of which is located in the upper part of the cylindrical sleeve 2 and is made in the form of at least two Helmholtz resonators, consisting of spherical resonator chambers 12 with a neck 15. The second resonant structure is adjacent to the end surface of the nozzle 5 with a bottom 7 and a cylindrical throttle hole 8 and is made in the form of an additional resonant chamber 16, made in the form of an annular recess in a cylindrical sleeve 2, separated from the acoustic cavity 14 of the annular per The city in which the resonant bushings 17 are fixed.

On the inner surface of the Central cylindrical throttle hole 8, located in the end surface of the nozzle 5, by means of at least two spokes, a fluid flow swirl is fixed in the form of a screw 19 mounted rotatably on the axis 18, one end of which is fixed on the spokes, and the other on the perforated an atomizer 20 mounted between the mixing chamber 9 of the nozzle and the diffuser outlet chamber 10.

The acoustic nozzle operates as follows.

The sprayed liquid enters the housing 1 through the central hole 3, then into the conical chamber 4, coaxial to the housing 1. From 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 under pressure enters through the inlet 11 of compressed air into the acoustic cavity 14. Moreover, in the resonant spherical chambers 12 with the neck 15, pressure drops of compressed air occur due to phenomena accompanying the operation of Helmholtz resonators. 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 acoustic cavity 14 by an annular partition in which the resonant sleeves are fixed 17. The additional resonance chamber 16, being an additional Helmholtz resonator, enhances the degree of fineness of the atomization gas-liquid flow nozzle. The number of resonant structures of the acoustic unit is determined by 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.

A fluid flow swirl in the form of a screw 19 mounted rotatably on an axis 18 located between the end surface of the nozzle 5 and a perforated atomizer 20 installed between the mixing chamber 9 of the nozzle and the diffuser outlet chamber 10 allows to increase the degree of fineness of the atomization of the gas-liquid stream by the nozzle.

Claims (2)

1. An acoustic nozzle containing a housing made in the form of an inlet 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 its lower of the part, a nozzle is made in the form of an inverted glass, in the bottom of which there is a turbulent swirl of air flow with at least two inputs inclined in the form of cylindrical holes and a center a cylindrical throttle hole connected to the nozzle mixing chamber, connected in series with the diffuser output chamber, characterized in that this acoustic unit consists of two resonant structures, one of which is located in the upper part of the cylindrical sleeve and is made in the form of at least two Helmholtz resonators consisting of resonant spherical chambers with a neck, and the second resonant structure adjacent to the end surface of the nozzle with a bottom and a cylindrical throttle hole and is made in the form of an additional resonant chamber, made in the form of an annular recess in a cylindrical sleeve, separated from the acoustic cavity by an annular partition in which the resonant bushings are fixed.
2. The 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, by at least two spokes a fluid flow swirl is fixed in the form of a screw mounted rotatably on an axis, one end of which mounted on knitting needles, and the other on a perforated spray gun mounted between the mixing chamber of the nozzle and the diffuser outlet chamber.
RU2017138644A 2017-11-08 2017-11-08 Acoustic atomizer RU2657487C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2017138644A RU2657487C1 (en) 2017-11-08 2017-11-08 Acoustic atomizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2017138644A RU2657487C1 (en) 2017-11-08 2017-11-08 Acoustic atomizer

Publications (1)

Publication Number Publication Date
RU2657487C1 true RU2657487C1 (en) 2018-06-14

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RU2017138644A RU2657487C1 (en) 2017-11-08 2017-11-08 Acoustic atomizer

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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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