CN106179139B - A kind of aerosol generator based on venturi principle - Google Patents
A kind of aerosol generator based on venturi principle Download PDFInfo
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- CN106179139B CN106179139B CN201610825087.5A CN201610825087A CN106179139B CN 106179139 B CN106179139 B CN 106179139B CN 201610825087 A CN201610825087 A CN 201610825087A CN 106179139 B CN106179139 B CN 106179139B
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- fuel tank
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- control cabinet
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- top plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/0095—Preparation of aerosols
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a kind of aerosol generators based on venturi principle,It includes babinet,Babinet is provided with fuel tank top plate will be divided into the control cabinet and lower part on top fuel tank in babinet,A pressure control component and multiple control cabinet inlet suction ports are each provided on the both sides panel of control cabinet,Pressure gauge there are two being set at the top of control cabinet,The gas outlet of each pressure control component is connected by the pipeline all the way being arranged across control cabinet with a pressure gauge respectively,It is vertically fixed with a separation partition board on the oil tank bottom plate of fuel tank, fuel tank is divided into generation room and separation chamber,The gas outlet of the pressure control component of each enters after being sequentially connected ball valve and inlet suction port respectively by multiple-way duct in control cabinet,It is connected respectively with the fuel tank air inlet positioned at fuel tank top plate into the both sides multiple-way duct in control cabinet,It is fixed with multiple nozzles interior occurs.Structure of the invention greatly improves the yield of aerosol.
Description
Technical field
The present invention relates to generator more particularly to a kind of aerosol generators based on venturi principle.
Background technology
For improving indoor air quality, pollutant concentration in control room is protected for effective ventilation and rational air current composition
Confirm that existing health, comfortable living environment have great significance.In general, research Room air distribution design has experiment measurement and numerical value
Simulate two kinds of approach.Wherein, experiment, which measures, can obtain more true information of flow, and the experimental data of high quality can also be used
In the verification of numerical simulation.Many researchs use the Single-point velocity determinations technology such as ultrasonic wind velocity indicator, hot-bulb or hot-wire anemometer
Carry out the measurement in flow field；But since room air flow field has complicated non-stationarity, instantaneous flow feature is with the time
Irregular variation is showed, Single-point velocity determination technology is difficult to obtain accurate flow field whole audience information and Dynamic Flow Field information.For gram
The deficiency of the traditional Single-point velocity determination method of clothes is with Particle Image Velocimetry (Particle Image Velocimetry, PIV)
The whole-field velocity measurement technology of representative starts gradually to be applied in the measurement of Indoor Flow Field.PIV is a kind of optics based on trace particle
Velocity measuring technique, it is that instantaneous whole audience flowing information, while convection current can be obtained relative to the sharpest edges of Single-point velocity determination technology
It is dynamic not have an impact.Therefore, PIV is increasingly becoming the powerful of indoor air flows measurement.
PIV speed-measuring methods are there are many classification, and the PIV of quovis modo, tachometric survey, which all relies on, is dispersed in flow field
In trace particle, it is all by measuring displacement of the trace particle in known very short time interval come indirectly that PIV methods, which test the speed,
Measure the instantaneous velocity distribution in flow field.If trace particle has sufficiently high flowing followability, the movement of trace particle can be true
Reflect the motion state in flow field on the spot.Therefore trace particle is extremely important in PIV velocimetries.It is high-quality in PIV velocity measuring techniques
The trace particle of amount requires：(1) as more consistent with Experimental Flowing Object as possible than important；(2) sufficiently small scale；(3) shape is wanted
Justify as far as possible and size distribution is as uniform as possible；(4) there is sufficiently high light scattering efficiency.In addition, PIV is carried out in environment indoors
It measures, it is nontoxic also to require trace particle.Therefore, oil droplet or Plexol 201 (Di-Ethyl-Hexyl-
Sebacat, DEHS) drop, stage smog and helium bubbles are most common particle (Cao X, Liu during indoor moveable PIV is measured
J,Jiang N,et al.Particle image velocimetry measurement of indoor airflow
field:A review of the technologies and applications[J].Energy&Buildings,2014,
69(3):367–380.).Wherein, the grain size of DEHS drops is generally several microns, has extraordinary turbulent flow followability, and DEHS objects
Rationality can be stablized, not volatile and have higher light scattering efficiency under same size, be considered as in air carry out PIV measure compared with
For ideal trace particle.
It can be divided into thermal coagulation generation and mist according to occurring principle currently used for the particle generators measured of PIV in air
Change and two kinds of (Melling A.Tracer particles and seeding for particle image occur
velocimetry[J].Measurement Science&Technology,1997,8(12):1406-1416.).Thermal coagulation gas
Colloidal sol generating means, e.g., CN 201578709U and CN 204314024U are only applicable to that the physical stabilities such as stage tobacco tar occur
Poor aerosol is as trace particle, although the larger PIV measurement demands that cannot be satisfied continuous sampling for a long time of occurrence quantity；
It is most representative with the aerosol generating device based on Laskin principles in atomizing principles generating means, such as CN
102072861A, CN 102069047A and CN 203155194U, although it can occur, DEHS drops etc. are ideal to be shown
Track particle, but its occurrence quantity is extremely limited, is suitable only for the PIV shootings of reduced size, e.g., human upper airway model (CN
102564728B) with scaled model (CN 100458372C), sufficient tracer grain can not be provided for big visual field or big flow
Son.To sum up, therefore, high-quality in order to obtain at present there is no the device of a DEHS liquid-droplet aerosols that can prepare high concentration
The PIV measurement data for measuring large scale flow field, there is an urgent need for carry out the R＆D work of related aerosol generating device.
In addition, the cleanliness factor test and Large Efficient filtering in large space clean workshop are the experiments such as the performance test of energy
In research, high concentration aerosol generating device is also the basis that its experiment is carried out.There has been no effective aerosol generators at present
For in above-mentioned experimental study.
Invention content
The purpose of the present invention is to overcome the disadvantages of the prior art, provides and a kind of occurs to stablize and centralized particle diameter
Aerosol generator based on venturi principle.
A kind of aerosol generator based on venturi principle of the present invention, it includes babinet, the edge in the babinet
It is horizontally arranged to have fuel tank top plate, the fuel tank top plate that be divided into the fuel tank of the control cabinet and lower part on top in babinet,
A pressure control component and multiple control cabinet inlet suction ports are each provided on the both sides panel of the control cabinet, in the control
Set at the top of case there are two pressure gauge, the gas outlet of the pressure control component described in each respectively by be arranged across control cabinet one
Road pipeline is connected with a pressure gauge, and a separation partition board is vertically fixed on the oil tank bottom plate of the fuel tank,
Part on the right side of the separation partition board is that room occurs, and the part being located on the left of the separation partition board is separation chamber, institute
It states separation partition board with fuel tank top plate interval to be arranged, multiple fuel tank air inlets is being provided on the fuel tank top plate that room side occurs
Mouthful and a pouring orifice, the gas outlet of the pressure control component described in each be sequentially connected respectively by multiple-way duct ball valve and into
After gas connector enter control cabinet in, into the both sides multiple-way duct in control cabinet respectively with the fuel tank air inlet positioned at fuel tank top plate
It is connected, multiple screw sockets is provided on the indoor oil tank bottom plate of generation, in the middle part of the side wall of the fuel tank at the generation room,
Sidewall bottom, which is respectively equipped with, to be occurred room height displaying instrument, room unloading port occurs, in the middle part of the side wall of the fuel tank at the separation chamber,
Sidewall bottom is respectively equipped with separation chamber's height displaying instrument, unloading port of separation chamber, the side wall upper part of the fuel tank at the separation chamber
Equipped with aerosol outlet and safety valve, multiple nozzles are fixed on the indoor oil tank bottom plate occurs, each institute
It includes part on the setting of upper and lower relative spacing and the nozzle that is threaded in jointly on the middle part threaded rod being vertically arranged to state nozzle
With nozzle lower part, three spiral shells on the nozzle on the circumferencial direction of part and nozzle lower part by being arranged at equal intervals
Rasp bar is fixedly linked with the screw socket being correspondingly arranged, and part and nozzle lower part respectively include matrix on the nozzle and setting exists
Cannular boss on matrix, the cannular boss relative spacing of part and nozzle lower part is arranged on the nozzle, the spray
Outlet of the gap as compressed air, the height in the gap are formed on mouth between part and the cannular boss of nozzle lower part
For 0.1~0.3mm, air intake passage, the air intake passage and nozzle top are provided on the matrix of part on the nozzle
The cavity of the cavity of the cannular boss divided and the cannular boss of nozzle lower part, which is interconnected, constitutes inlet channel, each spray
The air intake passage of mouth is connected by oil resistant pressure hose with fuel tank air inlet respectively, the hollow convex of part on the nozzle
The bottom outer wall of platform and the cannular boss top exterior walls of nozzle lower part are symmetrical about the center line in gap and are that arc is led
Flow structure.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) nozzle based on venturi principle of the invention, from the compressed air of gap ejection and due to Venturi effect
The liquid that stream comes collides, the method that the bubbles volume of generation is bubbled far more than a single point of the tradition based on Laskin nozzles, from
And the yield of aerosol is greatly improved.
(2) four screwed connecting rods settings, not only ensure that the stability of nozzle arrangements, but also can allow spray
Mouth top and the gap of nozzle lower part can be fine-tuned, and adjustable gap changes the size of its bubbling, so that
Generating the particle diameter distribution of aerosol can be adjusted.
(3) control cabinet and fuel tank are provided separately so that valve, instrument and pipe fitting to control air inlet avoid being immersed in oil
In, and then it is beneficial to the durability that the device uses.
(4) each nozzle have independent ball valve and pneumatics component, can by increase and decrease open nozzle number and into
Atmospheric pressure adjusts the occurrence quantity of aerosol.
(5) structure setting of the generation room and separation chamber in fuel tank, can capture a small amount of oil droplet collected and splashed out when bubbling
With larger particles, extra oil can also be recycled while control grain size is maintained at a smaller range.
Description of the drawings
Fig. 1 is a kind of nozzle front view of the aerosol generator based on venturi principle；
Fig. 2 is the vertical view of nozzle shown in FIG. 1；
Fig. 3 is the schematic diagram of nozzle shown in FIG. 1；
Fig. 4 is a kind of babinet stereogram of the aerosol generator based on venturi principle；
A kind of fuel tank internal stereograms of the aerosol generator based on venturi principle of Fig. 5；
Fig. 6 is the structural schematic diagram of the fuel tank top plate of aerosol generator shown in Fig. 4；
Fig. 7 is the structural schematic diagram of the oil tank bottom plate of aerosol generator shown in Fig. 4.
Specific implementation mode
Technical solution of the present invention is described in further detail in the following with reference to the drawings and specific embodiments, it is described specific
Embodiment is only explained the present invention, is not intended to limit the invention.
A kind of aerosol generator based on venturi principle of the present invention, it includes babinet, the edge in the babinet
It is horizontally arranged to have fuel tank top plate 7, the fuel tank top plate 7 that be divided into the control cabinet 5 on top and the oil of lower part in babinet
Case 9 is each provided with a pressure control component 2 and multiple control cabinet inlet suction ports 6 on the both sides panel of the control cabinet 5,
The top of the control cabinet 5 is set there are two pressure gauge 3；Pressure control component 2 plays the role of voltage stabilizing and pressure control, each institute
The gas outlet for the pressure control component 2 stated is connected by the pipeline all the way being arranged across control cabinet with a pressure gauge 3 respectively.
It is vertically fixed with a separation partition board 16 on the oil tank bottom plate of the fuel tank 9, is located at point
Part from the right side of partition board 16 is that room 10 occurs, and the part for being located at 16 left side of separation partition board is separation chamber 17, described point
It is arranged from partition board 16 and the interval of fuel tank top plate 7.It is multiple (as schemed being provided on the fuel tank top plate 7 that 10 side of room occurs
Can be six) fuel tank air inlet 8 and a pouring orifice 19, the gas outlet of the pressure control component 2 described in each pass through Multipath tube
Road enters after being sequentially connected ball valve 4 and inlet suction port 6 respectively in control cabinet 5, into the both sides multiple-way duct in control cabinet 5 point
It is not connected with the fuel tank air inlet 8 positioned at fuel tank top plate 7.
Multiple (can be 18) screw sockets 28 are provided on the indoor oil tank bottom plate of the described generation 27 for will be multiple
(can be six) nozzle 29 is fixed on and 10 bottom of room occurs, in the middle part of the side wall that the fuel tank 9 at room 10 occurs, side wall bottom
Portion, which is respectively equipped with, to be occurred room height displaying instrument 20, room unloading port 21 occurs；In the middle part of the side wall of fuel tank 9 at the separation chamber,
Sidewall bottom is respectively equipped with separation chamber's height displaying instrument 22, unloading port of separation chamber 23, the side wall of the fuel tank 9 at the separation chamber
Top is equipped with aerosol outlet 18 and safety valve 24.
It is fixed with multiple (six) nozzles 29, each described nozzle on the oil tank bottom plate 27 occurred in room 10
29 include that upper and lower relative spacing is arranged and part 12 on the nozzle that is threaded in jointly on the middle part threaded rod 25 being vertically arranged
With nozzle lower part 13, middle part threaded rod 25 is used to fine-tune height (part 12 and the nozzle lower part on nozzle in gap 14
The distance between 13) it is 0.1~0.3mm, passes through on the circumferencial direction of part 12 and nozzle lower part 13 on the nozzle
Three threaded rods 26 being arranged at equal intervals are fixedly linked with the screw socket 28 being correspondingly arranged.
The cannular boss that part 12 and nozzle lower part 13 respectively include matrix and be arranged on matrix on the nozzle,
The cannular boss relative spacing of part 12 and nozzle lower part 13 is arranged on the nozzle, part 12 and spray on the nozzle
Form outlet of the gap 14 as compressed air between the cannular boss of mouth lower part 13, the height in gap 14 for 0.1~
0.3mm is provided with air intake passage 11, the air intake passage 11 and part 12 on nozzle on the nozzle on the matrix of part
Cannular boss cavity and nozzle lower part 13 cannular boss cavity be interconnected constitute inlet channel.Each spray
The air intake passage 11 of mouth 29 is connected by oil resistant pressure hose with fuel tank air inlet 8 respectively.
It is outer at the top of the cannular boss of the bottom outer wall of the cannular boss of part 12 and nozzle lower part 13 on the nozzle
Wall is symmetrical about the center line in gap 14 and is arc flow-guiding structure.The arc flow-guiding structure makes to spray from gap 14
Compressed air produce Venturi effect so that the yield of aerosol greatly increases.
In order to ensure that the stabilization of apparatus of the present invention performance, apparatus of the present invention are equipped with two sets of independent gas handling systems, often pack into
Gas system includes the compositions such as air inlet 1, pressure control component 2, pressure gauge 3, multiple ball valves 4, multiple fuel tank air inlets 8, described often to cover
Gas handling system can control three nozzles 29 and work, and be described with reference to the drawings for wherein a set of below：
Compressed air is introduced from air inlet 1, and playing the role of voltage stabilizing and pressure by pressure control component 2 controls, after be divided into
Four tunnels are connected all the way with pressure gauge 3 to monitor admission pressure, and excess-three road enters control cabinet 5 to control cabinet after distinguishing access valve 4
After inlet suction port 6 enter control cabinet 5 in, into the both sides multiple-way duct in control cabinet 5 respectively with the fuel tank positioned at fuel tank top plate 7
Air inlet 8 is connected.In the generation room 10 of fuel tank 9, compressed air is introduced from fuel tank air inlet connections 8 by oil resistant pressure hose
The air intake passage 11 of nozzle 29 (nozzle 29 is immersed in the fluid of fuel tank 9), into nozzle on part 12 and nozzle lower part
13 gaps 14 constituted are projected at a high speed, and the aerosol bubble 15 with a lot of carrying fine droplet, bubble are formed around gap 14
15 rise to liquid level rupture to form aerosol after as air-flow is by separation partition board 16 so that big particle and oil droplet are deposited in point
From in room 17, small particle oil droplet continues that air-flow is followed to be discharged from aerosol outlet 18.
Substance for generating aerosol can be the liquid such as DEHS, DOP and NaCL, be referred to as " liquid for convenience
Body ", liquid are directly added into from the oil inlet 19 positioned at fuel tank top plate 7 in the generation room 10 of fuel tank 9, and liquid uses after filling
Cock observes the height that liquid level at least needs submergence gap 14 by the locked sealing of oil inlet 19, by the way that room height displaying instrument 20 occurs
It can work normally, the generation room unloading port 21 that 10 bottom of room occurs is used for cleaning generation room and replaces for generating aerosol
Liquid.In 17 side of separation chamber, separation chamber's height displaying instrument 22 of installation can observe liquid level and collect situation, and equipped with separation
Room unloading port 23, to withdrawal liquid and cleaning separation chamber 17.
The setting of safety-valve 24 is no more than safe range in 17 outside of separation chamber to control device internal pressure.
Illustrative description has been done to the present invention above, it should explanation, the case where not departing from core of the invention
Under, any simple deformation, modification or other skilled in the art can not spend the equivalent replacement of creative work equal
Fall into protection scope of the present invention.
Claims (1)
1. a kind of aerosol generator based on venturi principle, it includes babinet, it is characterised in that:The edge in the babinet
It is horizontally arranged to have fuel tank top plate, the fuel tank top plate that be divided into the fuel tank of the control cabinet and lower part on top in babinet,
A pressure control component and multiple control cabinet inlet suction ports are each provided on the both sides panel of the control cabinet, in the control
Set at the top of case there are two pressure gauge, the gas outlet of the pressure control component described in each respectively by be arranged across control cabinet one
Road pipeline is connected with a pressure gauge, and a separation partition board is vertically fixed on the oil tank bottom plate of the fuel tank,
Part on the right side of the separation partition board is that room occurs, and the part being located on the left of the separation partition board is separation chamber, institute
It states separation partition board with fuel tank top plate interval to be arranged, multiple fuel tank air inlets is being provided on the fuel tank top plate that room side occurs
Mouthful and a pouring orifice, the gas outlet of the pressure control component described in each be sequentially connected respectively by multiple-way duct ball valve and into
After gas connector enter control cabinet in, into the both sides multiple-way duct in control cabinet respectively with the fuel tank air inlet positioned at fuel tank top plate
It is connected, multiple screw sockets is provided on the indoor oil tank bottom plate of generation, in the middle part of the side wall of the fuel tank at the generation room,
Sidewall bottom, which is respectively equipped with, to be occurred room height displaying instrument, room unloading port occurs, in the middle part of the side wall of the fuel tank at the separation chamber,
Sidewall bottom is respectively equipped with separation chamber's height displaying instrument, unloading port of separation chamber, the side wall upper part of the fuel tank at the separation chamber
Equipped with aerosol outlet and safety valve, multiple nozzles are fixed on the indoor oil tank bottom plate occurs, each institute
It includes part on the setting of upper and lower relative spacing and the nozzle that is threaded in jointly on the middle part threaded rod being vertically arranged to state nozzle
With nozzle lower part, three spiral shells on the nozzle on the circumferencial direction of part and nozzle lower part by being arranged at equal intervals
Rasp bar is fixedly linked with the screw socket being correspondingly arranged, and part and nozzle lower part respectively include matrix on the nozzle and setting exists
Cannular boss on matrix, the cannular boss relative spacing of part and nozzle lower part is arranged on the nozzle, the spray
Outlet of the gap as compressed air, the height in the gap are formed on mouth between part and the cannular boss of nozzle lower part
For 0.1~0.3mm, air intake passage, the air intake passage and nozzle top are provided on the matrix of part on the nozzle
The cavity of the cavity of the cannular boss divided and the cannular boss of nozzle lower part, which is interconnected, constitutes inlet channel, each spray
The air intake passage of mouth is connected by oil resistant pressure hose with fuel tank air inlet respectively, the hollow convex of part on the nozzle
The bottom outer wall of platform and the cannular boss top exterior walls of nozzle lower part are symmetrical about the center line in gap and are that arc is led
Flow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825087.5A CN106179139B (en) | 2016-09-16 | 2016-09-16 | A kind of aerosol generator based on venturi principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825087.5A CN106179139B (en) | 2016-09-16 | 2016-09-16 | A kind of aerosol generator based on venturi principle |
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| CN106179139A CN106179139A (en) | 2016-12-07 |
| CN106179139B true CN106179139B (en) | 2018-09-14 |
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| CN201610825087.5A Active CN106179139B (en) | 2016-09-16 | 2016-09-16 | A kind of aerosol generator based on venturi principle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405209A (en) * | 2017-12-29 | 2018-08-17 | 中国航天空气动力技术研究院 | A kind of high followability big flow nanoscale atomization particle generating means |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1325711A (en) * | 1970-06-19 | 1973-08-08 | Ciba Geigy Ag | Aerosol dispensers |
| FR2604093B1 (en) * | 1986-09-19 | 1996-10-25 | Massart Herve | AEROSOL GENERATING DEVICE FOR MEDICAL USE |
| CN202860509U (en) * | 2012-09-28 | 2013-04-10 | 青岛众瑞智能仪器有限公司 | DOP (Dioctyl-Phthalate) aerosol generator |
| CN105675317A (en) * | 2014-11-19 | 2016-06-15 | 中国辐射防护研究院 | Aerosol cold generator |
| CN206045990U (en) * | 2016-09-16 | 2017-03-29 | 天津大学 | A kind of aerosol generator based on venturi principle |
-
2016
- 2016-09-16 CN CN201610825087.5A patent/CN106179139B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1325711A (en) * | 1970-06-19 | 1973-08-08 | Ciba Geigy Ag | Aerosol dispensers |
| FR2604093B1 (en) * | 1986-09-19 | 1996-10-25 | Massart Herve | AEROSOL GENERATING DEVICE FOR MEDICAL USE |
| CN202860509U (en) * | 2012-09-28 | 2013-04-10 | 青岛众瑞智能仪器有限公司 | DOP (Dioctyl-Phthalate) aerosol generator |
| CN105675317A (en) * | 2014-11-19 | 2016-06-15 | 中国辐射防护研究院 | Aerosol cold generator |
| CN206045990U (en) * | 2016-09-16 | 2017-03-29 | 天津大学 | A kind of aerosol generator based on venturi principle |
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| CN106179139A (en) | 2016-12-07 |
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Effective date of registration: 20210122 Address after: 517, 518, 519, block a, 6 Haitai development road, Huayuan Industrial Zone, Binhai New Area, Tianjin Patentee after: Tianjin Zhongtian Environmental Technology Co., Ltd Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92 Patentee before: Tianjin University |
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