CN204320532U - A kind of miniature liquid atomizer - Google Patents

A kind of miniature liquid atomizer Download PDF

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Publication number
CN204320532U
CN204320532U CN201420709878.8U CN201420709878U CN204320532U CN 204320532 U CN204320532 U CN 204320532U CN 201420709878 U CN201420709878 U CN 201420709878U CN 204320532 U CN204320532 U CN 204320532U
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China
Prior art keywords
nozzle
liquid
shower
taper
locating
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CN201420709878.8U
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Chinese (zh)
Inventor
李少华
万志伟
王晓亮
陶舒畅
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Dongfang Electric Co., Ltd.
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Dongfang Electric Corp
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Abstract

The utility model discloses a kind of miniature liquid atomizer, comprise inner nozzle and outer nozzle, inner nozzle is socketed in outer nozzle, has annulus between inner nozzle and outer nozzle; The hollow channel of inner nozzle inside is fluid passage, and the annulus between inner nozzle and outer nozzle is gas passage; Inner nozzle comprises the shower nozzle part of cylindrical part and taper; The inwall of outer nozzle and inner nozzle outer wall form fit; The outlet of described inner nozzle is liquid spout, and the outside wall surface of inner nozzle shower nozzle part follows the annular tapered channels outlet between the internal face of outer nozzle shower nozzle part to be gas spout; The end face of liquid spout is concordant with the end face of gas spout; The utility model adopts two passage exterior mixing structures, can be used for the liquid being atomized different viscosities, but not is only applicable to high viscosity liquid, not only easy to process, and assembly difficulty is less, and rigging error is low, and atomizing effect is also very good.

Description

A kind of miniature liquid atomizer
Technical field
The utility model relates to the atomization plant of high viscosity liquid, particularly a kind of miniature liquid atomizer.
Background technology
In industrial a lot of occasion, need to be atomized low discharge high viscosity liquid.Atomization of liquid technology is widely used, and as reaction liquid is become fine drop by chemical industry, increases the contact area of liquid and gas, improves reaction rate between gas-liquid; Fire extinguishing after liquid extinguisher is atomized by fire-fighting domain, fine drop is evaporated in a large number in region on fire, plays the effect of the oxygen at cooling and isolated burning objects place rapidly, has good effect etc. to suppressing and putting out incipient fire.
The atomizing type that high viscosity liquid is suitable for low-viscosity (mobile) liquid is different.Adopt pressure atomization low-viscosity (mobile) liquid (as light oil, water etc.) is current, inject in static or low speed flow by nozzle with high speed by the liquid of pressurization, liquid jet unstability, the finished breaking that breaks under the effect of aerodynamic force are droplet.Pressure atomized fog jet is generally single fluid nozzle, and its structure is simple, but undesirable to high viscosity liquid atomizing effect.High viscosity liquid (as heavy oil, residual oil, water-coal-slurry, adhesive etc.) adopts pneumatic nebulization more, the liquid jet of air-flow at a high speed and low speed is mutually impacted, rubs, liquid jet is made to be broken for fine mist gradually, good to high viscosity liquid pneumatic nebulization specific pressure atomizing effect.Because pneumatic nozzle is multi fluid nozzle, heel pressure atomizer is compared, and structure is relative complex also.
The atomization of low discharge high viscosity liquid should adopt pneumatic nebulization mode.Flow parameter is little, then nozzle arrangements size is little, and processing, the assembly difficulty of nozzle are large; Flow parameter is little, then the jet size of liquids and gases passage is little, and the error of processing and fit on may produce a very large impact the shape of liquid spout or gas spout, size, causes atomizing effect to decline.Atomizer good to high viscosity liquid atomizing effect under lacking a kind of small flow rate at present.
Utility model content
Problem to be solved in the utility model be simple, the process and assemble of a kind of structure of design easily, to the effective miniature liquid atomizer of the atomization of liquid of different viscosities, can also reach good atomizing effect to high viscosity liquid small flow rate is little.
The technical solution of the utility model is as follows:
A kind of miniature liquid atomizer, it is characterized in that: comprise inner nozzle and outer nozzle, inner nozzle is socketed in outer nozzle, has annulus between inner nozzle and outer nozzle; The hollow channel of inner nozzle inside is fluid passage, and the annulus between inner nozzle and outer nozzle is gas passage.
Described inner nozzle comprises the shower nozzle part of cylindrical part and taper.
The inwall of described outer nozzle and inner nozzle outer wall form fit, be also provided with the shower nozzle part of cylindrical part and taper.
Be provided with some locating pieces between the excessive face of the internal face of the outside wall surface of inner nozzle cylindrical part and the excessive face of outside wall surface of inner nozzle shower nozzle part and the internal face of outer nozzle cylindrical part and outer nozzle shower nozzle part, locating piece can be uniformly distributed by line centered by the axis of inner nozzle.Locating piece is used for positioning inner nozzle and outer nozzle, and it adopts unitary design with inner nozzle, and its locating surface is divided into cylindrical locating surface and taper locating surface; Wherein the cylindrical locating surface of locating piece follows the cylinder shape inner wall face equal diameters of outer nozzle, and when inner nozzle inserts in outer nozzle, these two cylindrical wall are close to mutually, achieve the radial location of inner and outer nozzles; The taper locating surface of locating piece is equal with the cone angle in the conical inboard wall face of outer nozzle, and these two conical surfaces can be close to mutually, for realizing the axial location of inner and outer nozzles.Therefore, when nozzle assembles, locating piece can realize the radial and axial location of inner and outer nozzles simultaneously.
Leave the stria of circulated gases between every two pieces of locating pieces, stria with determine the alternate layout in block position, quantity and the size of stria are chosen according to the actual requirements.
The locating surface of described locating piece comprises cylindrical locating surface and taper locating surface.
The angle of taper of the shower nozzle part of described inner nozzle is 40 °-70 °, and the angle of taper of the shower nozzle part of described outer nozzle is greater than the angle of taper of the shower nozzle part of inner nozzle, makes inner nozzle follow the gas passage forming convergent between outer nozzle.
The tail end of described inner nozzle is threaded connection liquid conveying pipeline.
Described outer nozzle is threaded connection gas conveying pipeline.
The outlet of described inner nozzle is liquid spout, and the outside wall surface of inner nozzle shower nozzle part follows the annular tapered channels outlet between the internal face of outer nozzle shower nozzle part to be gas spout.This designs of nozzles is exterior mixing structure, and the exit end face of inner nozzle is substantially concordant with the exit end face of outer nozzle, slightly shrinks.
The course of work of this nozzle: the liquid conveying pipeline of liquid through liquid inlet and center enters in the inner passage of inner nozzle, from the ejection of liquid spout after its reducing section is accelerated, is round jet shape.Gas enters in outer nozzle through the gas passage of gas access and annular, after the tapered channels between the internal face and the outside wall surface of inner nozzle shower nozzle part of outer nozzle shower nozzle part is accelerated, sprays from gas spout.There is certain angle with high velocity air at nozzle exit in low-velocity liquid jet, the two impacts, and low-velocity liquid jet is torn by high velocity air and fragmentation gradually, finally generates the taper liquid mist be made up of fine drop.
The beneficial effects of the utility model are as follows:
Nozzle of the present utility model have employed two passage exterior mixing structures, and production and processing difficulty is less; Nozzle application pneumatic nebulization mode, is conducive to solving the difficult problem of high viscosity liquid atomization;
By the above-mentioned special locating piece with inner nozzle unitary design, carry out radial and axial position at shower nozzle place to inner nozzle and outer nozzle to determine, ensure that the shape and size of annular gas spout, air stream outlet speed can be conformed to design load, and make at utmost to keep even from the air-flow of annular jet ejection, avoid nozzle to occur partially spraying phenomenon, thus ensure that the atomizing effect of nozzle;
This nozzle have employed the locating piece with inner nozzle unitary design, reduce the mismachining tolerance of locating piece, by carrying out radial and axial location to inner and outer nozzles simultaneously, to ensureing that the shape and size of annular gas spout are helpful, two passage outer mixed mode nozzles design and thisly determines block position, can assembly difficulty be alleviated, reduce rigging error;
The nozzle of this structure can be used for the liquid being atomized different viscosities, but not is only applicable to high viscosity liquid.When practical application, can according to the applied environment of reality, for this nozzle does suitable Aided design, as feeding manner, mounting means and the type of cooling etc.; Therefore, the miniature liquid atomizer that this is a kind of liquid viscosity wide adaptability, structure is simple, process and assemble is convenient, atomizing effect is good.
Accompanying drawing explanation
Fig. 1 is liquid atomizing nozzle structural representation of the present utility model;
Fig. 2 is three-dimensional view of the present utility model;
Fig. 3 is inner nozzle structural representation of the present utility model.
Wherein, Reference numeral is: 1 inner nozzle, 1-1 screw thread, the outside wall surface of 1-2 inner nozzle cylindrical part, the outside wall surface of 1-3 inner nozzle shower nozzle part, 2 outer nozzles, 3 locating pieces, the cylindrical locating surface of 3-1 locating piece, stria between 3-2 locating piece, 3-3 locating piece taper locating surface, 4 liquid spouts, 5 gas spouts.
Detailed description of the invention
As Figure 1-3, a kind of miniature liquid atomizer comprises inner nozzle 1 and outer nozzle 2, and inner nozzle 1 is socketed in outer nozzle 2; The hollow channel of inner nozzle 1 inside is fluid passage, and the annulus between inner nozzle 1 and outer nozzle 2 is gas passage.
Described inner nozzle 1 comprises the shower nozzle part of cylindrical part and taper, and the inwall of described outer nozzle 2 is provided with the shower nozzle part of cylindrical part with the outside wall surface form fit of inner nozzle 1 and taper.
The outside wall surface 1-2 of described inner nozzle cylindrical part, between the outside wall surface 1-3 of inner nozzle shower nozzle part and the internal face of outer nozzle 2, there is annulus.
The tail end of described inner nozzle 1 connects liquid conveying pipeline by screw thread 1-1.
Described outer nozzle 2 is threaded connection gas conveying pipeline.
The excessive face of the outside wall surface 1-2 of described inner nozzle cylindrical part and the outside wall surface 1-3 of inner nozzle shower nozzle part and be provided with some locating pieces 3 between the cylindrical part of outer nozzle 2 inwall and the excessive face of shower nozzle part, locating piece 3 can be uniformly distributed by line centered by the axis of inner nozzle 1.
Locating piece 3 is for positioning inner nozzle 1 and outer nozzle 2, and it adopts unitary design with inner nozzle, and the locating surface of locating piece 3 comprises cylindrical locating surface 3-1 and taper locating surface 3-3; Wherein the cylindrical locating surface 3-1 of locating piece 3 follows the cylinder shape inner wall face equal diameters of outer nozzle 2, and when inner nozzle 1 inserts in outer nozzle 2, these two cylindrical wall are close to mutually, achieve the radial location of inner and outer nozzles; The taper locating surface 33 of locating piece 3 is equal with the internal face cone angle of outer nozzle 2 shower nozzle part, and these two conical surfaces can be close to mutually, for realizing the axial location of inner and outer nozzles.Therefore, when nozzle assembles, locating piece 3 can realize the radial and axial location of inner and outer nozzles 2 simultaneously.
Leave the stria 3-2 of circulated gases between every two pieces of locating pieces 3, stria 3-2 with determine the alternate layout in block position 3, quantity and the size of stria 3-2 are chosen according to the actual requirements.
The angle of taper of the shower nozzle part of described inner nozzle 1 is 40 °-70 °, and the angle of taper of the shower nozzle part of described outer nozzle 2 is greater than the angle of taper of the shower nozzle part of inner nozzle 1, makes inner nozzle 1 with the gas passage forming convergent between outer nozzle 2.
The outlet of described inner nozzle 1 is liquid spout 4, and the outside wall surface 1-2 of inner nozzle shower nozzle part follows the annular tapered channels outlet between the internal face of outer nozzle 2 shower nozzle part to be gas spout 5.This designs of nozzles is exterior mixing structure, and the exit end face of inner nozzle 1 is substantially concordant with the exit end face of outer nozzle 2, slightly shrinks.
The course of work of this nozzle: the liquid conveying pipeline of liquid through liquid inlet and center enters in the inner passage of inner nozzle 1, spraying from liquid spout 4 after its reducing section is accelerated, is round jet shape; Gas enters in outer nozzle 2 through the gas passage of gas access and annular, after the tapered channels between the internal face and the outside wall surface 1-3 of inner nozzle shower nozzle part of outer nozzle 2 shower nozzle part is accelerated, sprays from gas spout 5; There is certain angle with high velocity air at nozzle exit in low-velocity liquid jet, the two impacts, and low-velocity liquid jet is torn by high velocity air and fragmentation gradually, finally generates the taper liquid mist be made up of fine drop.

Claims (7)

1. a miniature liquid atomizer, is characterized in that: comprise inner nozzle (1) and outer nozzle (2), and inner nozzle (1) is socketed in outer nozzle (2), has annulus between inner nozzle (1) and outer nozzle (2); The hollow channel of inner nozzle (1) inside is fluid passage, and the annulus between inner nozzle (1) and outer nozzle (2) is gas passage; Described inner nozzle (1) comprises the shower nozzle part of cylindrical part and taper, and the inwall of described outer nozzle (2) and inner nozzle (1) outer wall form fit, be also provided with the shower nozzle part of cylindrical part and taper; The outlet of described inner nozzle (1) is liquid spout (4), the outside wall surface (1-3) of inner nozzle shower nozzle part with outer nozzle (2) shower nozzle part internal face between annular tapered channels outlet be gas spout (5); The end face of liquid spout (4) is concordant with the end face of gas spout (5).
2. a kind of miniature liquid atomizer according to claim 1, is characterized in that: be provided with some locating pieces (3) between the excessive face of the internal face of the excessive face of the outside wall surface (1-2) of described inner nozzle cylindrical part and the outside wall surface (1-3) of inner nozzle shower nozzle part and the internal face of outer nozzle (2) cylindrical part and outer nozzle shower nozzle part.
3. a kind of miniature liquid atomizer according to claim 2, is characterized in that: the stria (3-2) leaving circulated gases between every two pieces of locating pieces (3).
4. a kind of miniature liquid atomizer according to claim 2, is characterized in that: the locating surface of described locating piece (3) comprises cylindrical locating surface (3-1) and taper locating surface (3-3).
5. a kind of miniature liquid atomizer according to claim 1, it is characterized in that: the angle of taper of the shower nozzle part of described inner nozzle (1) is 40 °-70 °, the angle of taper of the shower nozzle part of described outer nozzle (2) is greater than the angle of taper of the shower nozzle part of inner nozzle (1).
6. a kind of miniature liquid atomizer according to claim 1, is characterized in that: the tail end of described inner nozzle (1) connects liquid conveying pipeline by screw thread (1-1).
7. a kind of miniature liquid atomizer according to claim 1, is characterized in that: described outer nozzle (2) is threaded connection gas conveying pipeline.
CN201420709878.8U 2014-11-24 2014-11-24 A kind of miniature liquid atomizer Active CN204320532U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105289420A (en) * 2015-10-12 2016-02-03 神华集团有限责任公司 Atomizing nozzle and fixed bed
CN106733279A (en) * 2016-11-30 2017-05-31 深圳市瑞升华科技股份有限公司 One kind spray drying pipette tips component
CN107936987A (en) * 2017-12-11 2018-04-20 山东钢铁股份有限公司 A kind of oven top of coke oven maintaining method and refractory gunning equipment
CN110237947A (en) * 2019-05-22 2019-09-17 东莞安默琳机械制造技术有限公司 High-pressure nozzle and tool sharpening lubricating system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105289420A (en) * 2015-10-12 2016-02-03 神华集团有限责任公司 Atomizing nozzle and fixed bed
CN106733279A (en) * 2016-11-30 2017-05-31 深圳市瑞升华科技股份有限公司 One kind spray drying pipette tips component
CN107936987A (en) * 2017-12-11 2018-04-20 山东钢铁股份有限公司 A kind of oven top of coke oven maintaining method and refractory gunning equipment
CN110237947A (en) * 2019-05-22 2019-09-17 东莞安默琳机械制造技术有限公司 High-pressure nozzle and tool sharpening lubricating system

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C14 Grant of patent or utility model
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Effective date of registration: 20180424

Address after: 610000, No. 18, West core road, hi tech West District, Sichuan, Chengdu

Patentee after: Dongfang Electric Co., Ltd.

Address before: Jinniu District Chengdu City, Sichuan province 610036 Shu Road No. 333

Patentee before: Dongfang Electric Corporation

TR01 Transfer of patent right