RU2622929C1 - Acoustic nozzle - Google Patents

Acoustic nozzle Download PDF

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Publication number
RU2622929C1
RU2622929C1 RU2016139567A RU2016139567A RU2622929C1 RU 2622929 C1 RU2622929 C1 RU 2622929C1 RU 2016139567 A RU2016139567 A RU 2016139567A RU 2016139567 A RU2016139567 A RU 2016139567A RU 2622929 C1 RU2622929 C1 RU 2622929C1
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RU
Russia
Prior art keywords
resonator
nozzle
annular
cavity
housing
Prior art date
Application number
RU2016139567A
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 RU2016139567A priority Critical patent/RU2622929C1/en
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Publication of RU2622929C1 publication Critical patent/RU2622929C1/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: machine engineering.
SUBSTANCE: in the acoustic nozzle, an external diffuser is coaxially attached to the casing. An internal perforated diffuser is coaxially attached to the fastening element of the annular cavity resonator with the resonator rod. The output sections of the external and internal diffusers lie in one plane perpendicular to the axis of the annular volume resonator.
EFFECT: increased efficiency of dispersion.
1 dwg

Description

The invention relates to means for spraying liquids, solutions and can be used in engine building, chemical, food and light industries.

The closest technical solution to the claimed object is an acoustic atomizer - nozzle on.with. USSR No. 306270, F02C 7/24 from 04.01.70, comprising a housing with an acoustic oscillator located inside the nozzle and resonator, nozzles for supplying air and liquid (prototype).

A disadvantage of the known acoustic nozzle is that it does not provide a high degree of atomization.

The technical result is an increase in spraying efficiency.

This is achieved by the fact that in an acoustic nozzle containing a housing with an acoustic oscillator located inside the nozzle and resonator, nozzles for supplying air and liquid, the acoustic oscillator is made in the form of a conical nozzle coaxial with the housing and having an annular orifice with an external diameter d c formed by a nozzle exit and a resonator rod with a diameter of d st and an annular volume resonator of length h formed by a resonator rod and a cylindrical cavity with an external diameter d p in the fastener, while the cavity of the cavity resonator is separated from the nozzle exit by a distance b, and the pipe for air supply is perpendicular to the axis of the housing and connected to the annular cavity formed by the roller and the inner surface of the housing, while a clip with throttle holes is fixed to the roller coaxial with the annular throttle aperture, and also the resonator rod is coaxially fixed, and the sprayed liquid is supplied through a nozzle located perpendicular to the axis of the housing into the annular cavity, formed with the casing and the outer surface of the nozzle, while one end of the casing is solid and connected with the casing, and in the other end covering the conical nozzle, throttle openings are made, coaxial with the annular throttle aperture, and an adjustment device is provided from the side opposite to the volume resonator in the form of a handwheel with an oil seal, which is mounted on the free end of the roller, and the ratio of the length h of the annular volume resonator to the distance b from the open surface of the cavity of the volume resonator to the cut la lies in the optimal range of values h / b = 0.7 ÷ 1.3; the ratio of the outer diameter d p of the annular volume resonator to the diameter d st of the outer cylindrical surface of the resonator rod lies in the optimal range of values d p / d st = 1.2 ÷ 1.9; ratio of the diameter d c of the annular throttling nozzle orifice to the diameter d of item outer cylindrical surface of the resonator rod is in the optimal range of values d c / d v = 1,1 ÷ 1,7.

The drawing shows a General view of an acoustic nozzle for spraying liquids.

The acoustic nozzle comprises a cylindrical body 1 with an ultrasonic frequency range acoustic oscillation generator arranged in the form of a conical nozzle 10 coaxial with the housing 1 and having an annular throttle hole 11 with an outer diameter d c formed by a nozzle exit and a resonator rod 12 with a diameter d st , and an annular volume resonator 14 of length h, formed by a resonator rod 12 and a cylindrical cavity with an outer diameter d p in the fastening element 13, while the cavity of the volume resonator 14 spaced from the nozzle exit 10 by a distance b. Air is supplied under pressure through a pipe 3, perpendicular to the axis of the housing 1, into the annular cavity 7 formed by the roller 4 and the inner surface of the housing 1. A holder 5 is fixed to the roller 4 with throttle holes 6, coaxial with the annular throttle hole 11, and also coaxially fixed resonator rod 12. The holder 5 contacts in a sliding fit with the cylindrical shank of the nozzle 10. The sprayed liquid is supplied through a pipe 2 located perpendicular to the axis of the housing 1, into the annular cavity 15 formed by throat 8 and the outer surface of the nozzle 10, while one end of the casing is solid and connected with the housing 1, and at the other end, covering the conical nozzle 10, throttle holes 9 are made, coaxial with the annular throttle hole 11.

To change the degree of dispersion of the solution in the housing 1 from the side opposite to the volume resonator 14, an adjustment device is provided in the form of a flywheel 16 with an oil seal 17, which is mounted on the free end of the roller 4.

For optimal operation of the nozzle, the following ratios of its parameters must be observed.

The ratio of the length h of the annular volume resonator 14 to the distance b from the open surface of the cavity of the volume resonator 14 to the nozzle exit 10 lies in the optimal range of values h / b = 0.7 ÷ 1.3;

The ratio of the outer diameter d p of the annular volume resonator 14 to the diameter d st of the outer cylindrical surface of the resonator rod 12 lies in the optimal range of values d p / d st = 1.2 ÷ 1.9;

The ratio of the diameter d c of the annular throttle hole 11 of the nozzle to the diameter d st of the outer cylindrical surface of the resonator rod 12 lies in the optimal range of values of d c / d st = 1.1 ÷ 1.7.

An external diffuser 17 is coaxially attached to the nozzle casing 8, and an internal perforated diffuser 18 is coaxially attached to the fastening element 13 of the annular volume resonator 14 with the resonator rod 12 so that the output sections of the external and internal diffusers lie in one plane perpendicular to the axis of the ring volume resonator fourteen.

The acoustic nozzle operates as follows.

The spraying agent, for example air, is supplied through the nozzle 3 to the cavity 7, then through the throttle holes 6 of the yoke 5 into the annular throttle hole 11 with an outer diameter d c formed by the nozzle exit and the resonator rod 12, and then meets the annular volume resonator 14 in its path As a result of the passage of the resonator 14 by a spraying agent (for example, air), pressure pulsations arise in the latter, creating acoustic vibrations, the frequency of which depends on the parameters of the resonator. The acoustic vibrations of the spraying agent contribute to finer atomization of the liquid supplied through the pipe 2 to the cavity 15, formed by the casing 8 and the outer surface of the nozzle 10, from where it enters the throttle holes 9 in the end face of the casing 8 and then crushes under the influence of acoustic air vibrations into small drops, as a result, a torch of the sprayed solution with air is formed, the root angle of which is determined by the angle of inclination of the conical surface of the nozzle 10. Experiments have shown that at an air pressure of 100 k and the average droplet diameter is 90 .mu.m, with increasing air pressure is about 4 times (up to 400 kPa), the mean droplet diameter decreases insignificantly and is 87 microns.

Claims (1)

  1. An acoustic nozzle containing a housing with an acoustic oscillator located inside the nozzle and resonator, nozzles for supplying air and liquid, and an acoustic oscillator made in the form of a conical nozzle coaxial with the housing and having an annular throttle bore with an outer diameter d c formed by a nozzle exit and a resonator rod with a diameter of d ct and an annular volume resonator of length h formed by a resonator rod and a cylindrical cavity with an external diameter d p in the fastener, when the cavity of the cavity resonator is separated from the nozzle exit by a distance b, and the nozzle for supplying air is perpendicular to the axis of the housing and connected to the annular cavity formed by the roller and the inner surface of the housing, while a clip is fixed to the roller with throttle holes coaxial with the annular throttle hole, and the resonator rod is coaxially fixed, and the sprayed liquid is supplied through a nozzle located perpendicular to the axis of the housing into the annular cavity formed by the casing and the external surface nozzle, while one end of the casing is solid and connected with the body, and in the other end, covering the conical nozzle, throttle holes are made, coaxial with the annular throttle hole, while on the side opposite to the volume resonator, an adjustment device in the form of a handwheel with the gland, which is installed on the free end of the roller, and the ratio of the length h of the annular cavity resonator to the distance b from the open surface of the cavity of the cavity resonator to the nozzle exit vomited values h / b = 0,7 ÷ 1,3, the ratio of the outer diameter d p of the annular cavity to the diameter d CT external cylindrical surface of the resonator rod is in the optimal range of values d p / d v = 1,2 ÷ 1,9, ratio of the diameter d c of the annular nozzle orifice hole to the diameter d CT outer cylindrical surface of the resonator rod is in the optimal range of values d c / d = 1.1 v ÷ 1.7, characterized in that the housing coaxially to the nozzle fixed outer diffuser, and by mounting element of a ring cavity resonator with a resonator An inner perforated diffuser is coaxially attached with the rod so that the output sections of the external and internal diffusers lie in the same plane perpendicular to the axis of the annular volume resonator.
RU2016139567A 2016-10-10 2016-10-10 Acoustic nozzle RU2622929C1 (en)

Priority Applications (1)

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RU2016139567A RU2622929C1 (en) 2016-10-10 2016-10-10 Acoustic nozzle

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Application Number Priority Date Filing Date Title
RU2016139567A RU2622929C1 (en) 2016-10-10 2016-10-10 Acoustic nozzle

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RU2622929C1 true RU2622929C1 (en) 2017-06-21

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2645371C1 (en) * 2017-06-26 2018-02-21 Олег Савельевич Кочетов Spray dryer with counter swirling flows of vht type
RU2645372C1 (en) * 2017-06-26 2018-02-21 Олег Савельевич Кочетов Spray dryer
RU2645377C1 (en) * 2017-06-26 2018-02-21 Олег Савельевич Кочетов Installation for drying fluids with the inert nozzle
RU2645382C1 (en) * 2017-06-26 2018-02-21 Олег Савельевич Кочетов Drying device for high-moisture materials
RU2645786C1 (en) * 2017-06-29 2018-02-28 Олег Савельевич Кочетов Installation for drying fluids with the inert nozzle
RU2645788C1 (en) * 2017-06-29 2018-02-28 Олег Савельевич Кочетов Device for drying of solutions and suspensions in fluidized bed of inert bodies
RU2645781C1 (en) * 2017-06-29 2018-02-28 Олег Савельевич Кочетов Acoustic atomizer
RU2645889C1 (en) * 2017-06-29 2018-02-28 Олег Савельевич Кочетов Catalysts drying and calcination plant
RU2646665C1 (en) * 2017-06-26 2018-03-06 Олег Савельевич Кочетов Drying coating layer with inert fittings
RU2646660C1 (en) * 2017-06-29 2018-03-06 Олег Савельевич Кочетов Drying coating layer with inert fittings
RU2646999C1 (en) * 2017-06-29 2018-03-13 Олег Савельевич Кочетов Acoustic nozzle with spraying diffuser
RU2647003C1 (en) * 2017-06-29 2018-03-13 Олег Савельевич Кочетов Dryer for solutions and suspensions
RU2647004C1 (en) * 2017-06-29 2018-03-13 Олег Савельевич Кочетов Drying device for high-moisture materials
RU2647001C1 (en) * 2017-06-29 2018-03-13 Олег Савельевич Кочетов Suspended layer dryer with inert attachment
RU2646998C1 (en) * 2017-06-26 2018-03-13 Олег Савельевич Кочетов Suspended layer dryer with inert attachment
RU2647921C1 (en) * 2017-06-29 2018-03-21 Олег Савельевич Кочетов Spray dryer with counter swirling flows of vht type
RU2656541C1 (en) * 2017-06-29 2018-06-05 Олег Савельевич Кочетов Spray dryer

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102651A (en) * 1972-10-14 1978-07-25 Davy Powergas Gmbh Ultrasonic atomizer for waste sulfuric acid and use thereof in acid cracking furnaces
US4396356A (en) * 1979-01-26 1983-08-02 Lincoln Thompson Aspirator and aspirating system
WO1993024237A1 (en) * 1992-05-29 1993-12-09 Cambridge Consultants Limited Method and apparatus for producing a liquid spray
RU2401681C1 (en) * 2009-08-06 2010-10-20 Олег Савельевич Кочетов Acoustic foam generator
RU2401679C1 (en) * 2009-08-06 2010-10-20 Олег Савельевич Кочетов Foam generator of acoustic type
RU2501612C1 (en) * 2012-11-09 2013-12-20 Олег Савельевич Кочетов Acoustic foaming system
RU2509262C1 (en) * 2012-12-28 2014-03-10 Олег Савельевич Кочетов Acoustic vortex nozzle
RU2557505C1 (en) * 2014-10-16 2015-07-20 Олег Савельевич Кочетов Centrifugal swirl atomiser of kochstar type

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102651A (en) * 1972-10-14 1978-07-25 Davy Powergas Gmbh Ultrasonic atomizer for waste sulfuric acid and use thereof in acid cracking furnaces
US4396356A (en) * 1979-01-26 1983-08-02 Lincoln Thompson Aspirator and aspirating system
WO1993024237A1 (en) * 1992-05-29 1993-12-09 Cambridge Consultants Limited Method and apparatus for producing a liquid spray
RU2401681C1 (en) * 2009-08-06 2010-10-20 Олег Савельевич Кочетов Acoustic foam generator
RU2401679C1 (en) * 2009-08-06 2010-10-20 Олег Савельевич Кочетов Foam generator of acoustic type
RU2501612C1 (en) * 2012-11-09 2013-12-20 Олег Савельевич Кочетов Acoustic foaming system
RU2509262C1 (en) * 2012-12-28 2014-03-10 Олег Савельевич Кочетов Acoustic vortex nozzle
RU2557505C1 (en) * 2014-10-16 2015-07-20 Олег Савельевич Кочетов Centrifugal swirl atomiser of kochstar type

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2646665C1 (en) * 2017-06-26 2018-03-06 Олег Савельевич Кочетов Drying coating layer with inert fittings
RU2645372C1 (en) * 2017-06-26 2018-02-21 Олег Савельевич Кочетов Spray dryer
RU2645377C1 (en) * 2017-06-26 2018-02-21 Олег Савельевич Кочетов Installation for drying fluids with the inert nozzle
RU2645382C1 (en) * 2017-06-26 2018-02-21 Олег Савельевич Кочетов Drying device for high-moisture materials
RU2646998C1 (en) * 2017-06-26 2018-03-13 Олег Савельевич Кочетов Suspended layer dryer with inert attachment
RU2645371C1 (en) * 2017-06-26 2018-02-21 Олег Савельевич Кочетов Spray dryer with counter swirling flows of vht type
RU2645781C1 (en) * 2017-06-29 2018-02-28 Олег Савельевич Кочетов Acoustic atomizer
RU2645889C1 (en) * 2017-06-29 2018-02-28 Олег Савельевич Кочетов Catalysts drying and calcination plant
RU2645788C1 (en) * 2017-06-29 2018-02-28 Олег Савельевич Кочетов Device for drying of solutions and suspensions in fluidized bed of inert bodies
RU2646660C1 (en) * 2017-06-29 2018-03-06 Олег Савельевич Кочетов Drying coating layer with inert fittings
RU2646999C1 (en) * 2017-06-29 2018-03-13 Олег Савельевич Кочетов Acoustic nozzle with spraying diffuser
RU2647003C1 (en) * 2017-06-29 2018-03-13 Олег Савельевич Кочетов Dryer for solutions and suspensions
RU2647004C1 (en) * 2017-06-29 2018-03-13 Олег Савельевич Кочетов Drying device for high-moisture materials
RU2647001C1 (en) * 2017-06-29 2018-03-13 Олег Савельевич Кочетов Suspended layer dryer with inert attachment
RU2645786C1 (en) * 2017-06-29 2018-02-28 Олег Савельевич Кочетов Installation for drying fluids with the inert nozzle
RU2647921C1 (en) * 2017-06-29 2018-03-21 Олег Савельевич Кочетов Spray dryer with counter swirling flows of vht type
RU2656541C1 (en) * 2017-06-29 2018-06-05 Олег Савельевич Кочетов Spray dryer

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