CN106179139A - 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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- CN106179139A CN106179139A CN201610825087.5A CN201610825087A CN106179139A CN 106179139 A CN106179139 A CN 106179139A CN 201610825087 A CN201610825087 A CN 201610825087A CN 106179139 A CN106179139 A CN 106179139A
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- fuel tank
- chamber
- nozzle
- control chamber
- top board
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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
Abstract
nullThe invention discloses a kind of aerosol generator based on venturi principle，It includes casing，Casing be provided with fuel tank top board by casing in be divided into the control chamber on top and the fuel tank of bottom，The both sides panel of control chamber is each provided with a pressure control assembly and multiple control chamber inlet suction port，Two Pressure gauges it are provided with at the top of control chamber，The gas outlet of each pressure control assembly is connected by the road pipeline arranged through control chamber and a Pressure gauge respectively，The oil tank bottom plate of fuel tank is vertically fixed with a separation dividing plate fuel tank is divided into generation chamber and separation chamber，The gas outlet of the pressure control assembly of each enters in control chamber after being sequentially connected with ball valve and inlet suction port respectively by multiple-way duct，The both sides multiple-way duct entered in control chamber is connected with the fuel tank air inlet being positioned at fuel tank top board respectively，Multiple nozzle it is fixed with in generation chamber.Aerocolloidal generation amount is greatly improved by present configuration.
Description
Technical field
The present invention relates to generator, particularly relate to a kind of aerosol generator based on venturi principle.
Background technology
Effectively ventilate and rational air current composition is for improving indoor air quality, control room internal contamination substrate concentration, protect
Confirm that existing healthy, comfortable human settlement has great significance.Generally, research Room air distribution design has experiment to measure and numerical value
Simulate two kinds of approach.Wherein, experiment measurement can obtain more real information of flow, and high-quality experimental data can also be used
Checking in numerical simulation.A lot of researchs have employed the Single-point velocity determination technology such as ultrasonic wind velocity indicator, hot-bulb or hot-wire anemometer
Carry out the measurement in flow field；But owing to room air flow field has the non-stationarity of complexity, its instantaneous flow feature is over time
Presenting irregular change, Single-point velocity determination technology is difficult to obtain flow field whole audience information and Dynamic Flow Field information accurately.For gram
The deficiency of clothes tradition Single-point velocity determination method, with Particle Image Velocimetry (Particle Image Velocimetry, PIV) be
The whole-field velocity measurement technology represented, starts progressively 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 to obtain instantaneous whole audience flowing information, convection current simultaneously relative to the sharpest edges of Single-point velocity determination technology
Move and do not produce impact.Therefore, PIV is increasingly becoming the powerful that indoor air flows is measured.
PIV speed-measuring method has multiple classification, the PIV of quovis modo, and its tachometric survey all relies on and is dispersed in flow field
In trace particle, PIV method test the speed be all by measure trace particle known very short time be spaced in displacement come indirectly
Measure the instantaneous velocity distribution in flow field.If trace particle has sufficiently high flowing followability, the motion of trace particle just can be true
Reflect the kinestate in flow field on the spot.Therefore trace particle is extremely important in PIV velocimetry.In PIV velocity measuring technique, high-quality
The trace particle of amount requires: (1) is more consistent with Experimental Flowing Object as far as possible than important；(2) sufficiently small yardstick；(3) shape is wanted
Circle and size distribution as far as possible is the most uniform；(4) there is sufficiently high light scattering efficiency.Additionally, carry out PIV in indoor environment
Measure, also require that trace particle is nontoxic.Therefore, oil droplet or Plexol 201 (Di-Ethyl-Hexyl-
Sebacat, DEHS) drop, stage smog and helium bubbles be particle (Cao X, Liu the most frequently used during indoor moveable PIV measures
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 particle diameter that DEHS drips is generally several microns, has extraordinary turbulent flow followability, and DEHS thing
Reason stable performance, the most volatile and under same size, have higher light scattering efficiency, it is considered as in air carrying out PIV and measures relatively
For preferable trace particle.
It is currently used for the particle generator that in air, PIV measures and can be divided into thermal coagulation generation and mist according to occurring principle
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.).Heat setting stagnation of QI
Colloidal sol generating means, e.g., CN 201578709U and CN 204314024U, it is only applicable to the physical stabilities such as stage ree-oil
Poor aerosol is as trace particle, although generating capacity is relatively big but cannot meet the PIV measurement demand of the most long-time sampling；
In atomizing principles generating means the most representative, such as CN with aerosol generating device based on Laskin principle
102072861A, CN 102069047A and CN 203155194U, although it can occur ideal the showing such as DEHS drop
Track particle, but its generating capacity is extremely limited, is suitable only for the PIV shooting of reduced size, e.g., human upper airway model (CN
102564728B) with scaled model (CN 100458372C), the spike grain of abundance can not be provided for big visual field or big flow
Son.To sum up, the most the device of a DEHS liquid-droplet aerosol that can prepare high concentration, therefore, not high-quality in order to obtain
The PIV measurement data in amount large scale flow field, needs the R&D work carrying out relevant aerosol generating device badly.
Additionally, the cleanliness factor at large space clean workshop is tested, and Large Efficient filters the experiments such as the performance test of system's energy
In research, high concentration aerosol generating device is also that it tests the basis carried out.Not yet there is effective aerosol generator at present
In above-mentioned experimentation.
Summary of the invention
It is an object of the invention to overcome the shortcoming of prior art, it is provided that a kind of occur stable and centralized particle diameter
Aerosol generator based on venturi principle.
A kind of based on venturi principle the aerosol generator of the present invention, it includes casing, edge in described casing
Horizontally arranged have fuel tank top board, and described fuel tank top board will be divided into the control chamber on top and the fuel tank of bottom in casing,
The both sides panel of described control chamber is each provided with a pressure control assembly and multiple control chamber inlet suction port, in described control
The top of case is provided with two Pressure gauges, the gas outlet of each described pressure control assembly respectively by arrange through control chamber one
Road pipeline and a Pressure gauge are connected, and be vertically fixed with one and separate dividing plate on the oil tank bottom plate of described fuel tank,
Being positioned at the described part on the left of dividing plate that separates is generation chamber, and being positioned at the described part on the right side of dividing plate that separates is separation chamber, institute
State separation dividing plate and fuel tank top board interval is arranged, the fuel tank top board being positioned at described in generation chamber side has multiple fuel tank air inlet
Mouth and a pouring orifice, the gas outlet of each described pressure control assembly is sequentially connected with ball valve respectively by multiple-way duct and is entered
Enter in control chamber after gas joint, enter the both sides multiple-way duct in control chamber respectively with the fuel tank air inlet being positioned at fuel tank top board
It is connected, the oil tank bottom plate in described generation chamber has multiple screw socket, in the middle part of the sidewall of the fuel tank at described generation chamber,
Sidewall bottom is respectively equipped with generation chamber height displaying instrument, generation chamber unloading port, in the middle part of the sidewall of the fuel tank at described 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 described separation chamber
It is provided with aerosol outlet and relief valve, the oil tank bottom plate described in generation chamber is fixed with multiple nozzle, each institute
State nozzle and include that upper and lower relative spacing arranges and is jointly threaded in the nozzle upper part on the middle part threaded rod being vertically arranged
With nozzle lower part, the circumferencial direction of described nozzle upper part and nozzle lower part passes through three spiral shells arranged at equal intervals
Rasp bar is fixedly linked with the screw socket being correspondingly arranged, and described nozzle upper part and nozzle lower part include matrix respectively and be arranged on
Cannular boss on matrix, the cannular boss relative spacing of described nozzle upper part and nozzle lower part is arranged, described spray
Gap is formed as compressed-air actuated outlet, the height in described gap between the cannular boss of mouth upper part and nozzle lower part
It is 0.1～0.3mm, the matrix of described nozzle upper part has air intake passage, described air intake passage and nozzle top
Point the cavity of cannular boss and the cavity of cannular boss of nozzle lower part be interconnected composition inlet channel, each spray
The air intake passage of mouth is connected with fuel tank air inlet by oil resistant pressure hose respectively, the hollow convex of described nozzle upper part
The bottom outer wall of platform and the cannular boss top exterior walls of nozzle lower part are symmetrical about the centrage in gap and be arc and lead
Flow structure.
Compared with prior art, the invention has the beneficial effects as follows:
(1) nozzle based on venturi principle of the present invention, from the compressed air of gap ejection and due to Venturi effect
The liquid that stream comes collides, the bubbles volume of generation far more than the method for tradition a single point based on Laskin nozzle bubbling, from
And aerocolloidal generation amount is greatly improved.
(2) four screwed connecting rods are arranged, and not only ensure that the stability of nozzle arrangements, and can allow spray
Mouth top can be fine-tuned with the gap of nozzle bottom, and adjustable gap changes the size of its bubbling, and then makes
Generate the distribution of aerocolloidal particle diameter can regulate.
(3) control chamber and fuel tank are provided separately so that avoid being immersed in oil in order to control the valve of air inlet, instrument and pipe fitting
In, and then it is of value to the durability that this device uses.
(4) each nozzle has independent ball valve and pneumatics assembly, the nozzle number that can be opened by increase and decrease and entering
Atmospheric pressure regulates aerocolloidal generating capacity.
(5) structure of the generation chamber in fuel tank and separation chamber is arranged, and can capture a small amount of oil droplet spilt when collecting bubbling
With larger particles, control can also be utilized by unnecessary recovery of oil while particle diameter is maintained at a less scope.
Accompanying drawing explanation
Fig. 1 is the nozzle front view of a kind of aerosol generator based on venturi principle；
Fig. 2 is the top view of the nozzle shown in Fig. 1；
Fig. 3 is the schematic diagram of the nozzle shown in Fig. 1；
Fig. 4 is the casing axonometric chart of a kind of aerosol generator based on venturi principle；
The fuel tank internal axonometric chart of a kind of aerosol generator based on venturi principle of Fig. 5；
Fig. 6 is the structural representation of the fuel tank top board of the aerosol generator shown in Fig. 4；
Fig. 7 is the structural representation of the oil tank bottom plate of the aerosol generator shown in Fig. 4.
Detailed description of the invention
Being described in further detail technical solution of the present invention with specific embodiment below in conjunction with the accompanying drawings, described is concrete
The present invention is only explained by embodiment, not in order to limit the present invention.
A kind of based on venturi principle the aerosol generator of the present invention, it includes casing, edge in described casing
Horizontally arranged have fuel tank top board 7, and described fuel tank top board 7 will be divided into control chamber 5 and the oil of bottom on top in casing
Case 9, is each provided with a pressure control assembly 2 and multiple control chamber inlet suction port 6 on the both sides panel of described control chamber 5,
The top of described control chamber 5 is provided with two Pressure gauges 3；Pressure control assembly 2 plays voltage stabilizing and pressure controlled effect, each institute
The gas outlet of the pressure control assembly 2 stated is connected by the road pipeline arranged through control chamber and a Pressure gauge 3 respectively.
The oil tank bottom plate of described fuel tank 9 is vertically fixed with one and separates dividing plate 16, be positioned at described dividing
Part on the left of dividing plate 16 is generation chamber 10, and being positioned at the described part on the right side of dividing plate 16 that separates is separation chamber 17, described point
It is spaced from dividing plate 16 and fuel tank top board 7 and arranges.Be positioned on the fuel tank top board 7 described in generation chamber 10 side have multiple (as figure
Can be six) fuel tank air inlet 8 and a pouring orifice 19, Multipath tube is passed through in the gas outlet of each described pressure control assembly 2
Road enters in control chamber 5 after being sequentially connected with ball valve 4 and inlet suction port 6 respectively, and the both sides multiple-way duct entered in control chamber 5 divides
It is not connected with the fuel tank air inlet 8 being positioned at fuel tank top board 7.
Multiple (can be 18) screw socket 28 is had for by multiple on oil tank bottom plate 27 in described generation chamber
(can be six) nozzle 29 is fixed on bottom generation chamber 10, in the middle part of the sidewall of the fuel tank 9 at described generation chamber 10, at the bottom of sidewall
Portion is respectively equipped with generation chamber height displaying instrument 20, generation chamber unloading port 21；In the middle part of the sidewall of the fuel tank 9 at described separation chamber,
Sidewall bottom is respectively equipped with separation chamber's height displaying instrument 22, unloading port of separation chamber 23, the sidewall of the fuel tank 9 at described separation chamber
Top is provided with aerosol outlet 18 and relief valve 24.
Multiple (six) nozzle 29, each described nozzle it is fixed with on oil tank bottom plate 27 described in generation chamber 10
29 include that upper and lower relative spacing arranges and is jointly threaded in the nozzle upper part 12 on the middle part threaded rod 25 being vertically arranged
With nozzle lower part 13, middle part threaded rod 25 is for being fine-tuned height (nozzle upper part 12 and the nozzle lower part in gap 14
Distance between 13) it is 0.1～0.3mm, the circumferencial direction of described nozzle upper part 12 and nozzle lower part 13 passes through
Three threaded rods 26 arranged at equal intervals and the screw socket 28 being correspondingly arranged are fixedly linked.
Described nozzle upper part 12 and nozzle lower part 13 include matrix and the cannular boss being arranged on matrix respectively,
The cannular boss relative spacing of described nozzle upper part 12 and nozzle lower part 13 is arranged, described nozzle upper part 12 and spray
Between the cannular boss of mouth lower part 13 formed gap 14 as compressed-air actuated outlet, the height in gap 14 be 0.1～
0.3mm, has air intake passage 11, described air intake passage 11 and nozzle upper part 12 on the matrix of described nozzle upper part
The cavity of cannular boss and the cavity of cannular boss of nozzle lower part 13 be interconnected composition inlet channel.Each spray
The air intake passage 11 of mouth 29 is connected with fuel tank air inlet 8 by oil resistant pressure hose respectively.
Outside the bottom outer wall of the cannular boss of described nozzle upper part 12 and the cannular boss top of nozzle lower part 13
Wall is symmetrical about the centrage in gap 14 and is arc flow-guiding structure.Described arc flow-guiding structure, makes to spray from gap 14
Compressed air create Venturi effect, so that aerocolloidal generation amount is greatly increased.
In order to ensure stablizing of apparatus of the present invention performance, apparatus of the present invention are provided with the gas handling system that two sets are independent, often pack into
Gas system includes the composition such as air inlet 1, pressure control assembly 2, Pressure gauge 3, multiple ball valve 4, multiple fuel tank air inlets 8, described often overlaps
Gas handling system can control three nozzles 29 and be operated, below as a example by the most a set of in conjunction with the accompanying drawings:
Compressed air introduces from air inlet 1, plays voltage stabilizing and pressure controlled effect through pressure control assembly 2, after be divided into
Four tunnels, a road is connected to monitor admission pressure with Pressure gauge 3, enters control chamber 5 to control chamber after the access valve 4 respectively of its excess-three road
Enter in control chamber 5 after inlet suction port 6, enter the both sides multiple-way duct in control chamber 5 respectively with the fuel tank being positioned at fuel tank top board 7
Air inlet 8 is connected.In the generation chamber 10 of fuel tank 9, compressed air is introduced by oil resistant pressure hose from fuel tank air inlet connections 8
The air intake passage 11 of nozzle 29 (nozzle 29 is immersed in the fluid of fuel tank 9), enters nozzle upper part 12 and nozzle lower part
The injection at a high speed of 13 gaps 14 constituted, forms the aerosol bubble 15 that substantial quantities of entrained fine droplet, bubble around gap 14
15 rise to after liquid level ruptures formation aerosol along with air-flow is through separating dividing plate 16 so that big granule and oil droplet are deposited in point
In room 17, small particle oil droplet continues to follow air-flow and discharges from aerosol outlet 18.
Can be the liquid such as DEHS, DOP and NaCL for producing aerocolloidal material, be referred to as " liquid for convenience
Body ", liquid is directly added into the generation chamber 10 of fuel tank 9 from the oil-in 19 being positioned at fuel tank top board 7, and liquid uses after filling
Cock is by locked for oil-in 19 sealing, and observing liquid level by generation chamber height displaying instrument 20 at least needs the height in submergence gap 14
Can normally work, the generation chamber unloading port 21 bottom generation chamber 10 is used for cleaning generation chamber and changing for producing aerosol
Liquid.The separation chamber's height displaying instrument 22 installed in side, separation chamber 17 can be observed liquid level and collect situation, and is provided with separation
Room unloading port 23, in order to withdrawal liquid and cleaning separation chamber 17.
Safety-valve 24 is arranged on outside separation chamber 17, in order to control device internal pressure less than safety range.
Above the present invention is done exemplary description, it should explanation, in the situation of the core without departing from the present invention
Under, any simple deformation, amendment or other those skilled in the art can not spend the equivalent of creative work equal
Fall into protection scope of the present invention.
Claims (1)
1. an aerosol generator based on venturi principle, it includes casing, it is characterised in that: edge in described casing
Horizontally arranged have fuel tank top board, and described fuel tank top board will be divided into the control chamber on top and the fuel tank of bottom in casing,
The both sides panel of described control chamber is each provided with a pressure control assembly and multiple control chamber inlet suction port, in described control
The top of case is provided with two Pressure gauges, the gas outlet of each described pressure control assembly respectively by arrange through control chamber one
Road pipeline and a Pressure gauge are connected, and be vertically fixed with one and separate dividing plate on the oil tank bottom plate of described fuel tank,
Being positioned at the described part on the left of dividing plate that separates is generation chamber, and being positioned at the described part on the right side of dividing plate that separates is separation chamber, institute
State separation dividing plate and fuel tank top board interval is arranged, the fuel tank top board being positioned at described in generation chamber side has multiple fuel tank air inlet
Mouth and a pouring orifice, the gas outlet of each described pressure control assembly is sequentially connected with ball valve respectively by multiple-way duct and is entered
Enter in control chamber after gas joint, enter the both sides multiple-way duct in control chamber respectively with the fuel tank air inlet being positioned at fuel tank top board
It is connected, the oil tank bottom plate in described generation chamber has multiple screw socket, in the middle part of the sidewall of the fuel tank at described generation chamber,
Sidewall bottom is respectively equipped with generation chamber height displaying instrument, generation chamber unloading port, in the middle part of the sidewall of the fuel tank at described 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 described separation chamber
It is provided with aerosol outlet and relief valve, the oil tank bottom plate described in generation chamber is fixed with multiple nozzle, each institute
State nozzle and include that upper and lower relative spacing arranges and is jointly threaded in the nozzle upper part on the middle part threaded rod being vertically arranged
With nozzle lower part, the circumferencial direction of described nozzle upper part and nozzle lower part passes through three spiral shells arranged at equal intervals
Rasp bar is fixedly linked with the screw socket being correspondingly arranged, and described nozzle upper part and nozzle lower part include matrix respectively and be arranged on
Cannular boss on matrix, the cannular boss relative spacing of described nozzle upper part and nozzle lower part is arranged, described spray
Gap is formed as compressed-air actuated outlet, the height in described gap between the cannular boss of mouth upper part and nozzle lower part
It is 0.1～0.3mm, the matrix of described nozzle upper part has air intake passage, described air intake passage and nozzle top
Point the cavity of cannular boss and the cavity of cannular boss of nozzle lower part be interconnected composition inlet channel, each spray
The air intake passage of mouth is connected with fuel tank air inlet by oil resistant pressure hose respectively, the hollow convex of described nozzle upper part
The bottom outer wall of platform and the cannular boss top exterior walls of nozzle lower part are symmetrical about the centrage in gap and be arc and lead
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106179139A true CN106179139A (en) | 2016-12-07 |
| CN106179139B CN106179139B (en) | 2018-09-14 |
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ID=58067565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610825087.5A Active CN106179139B (en) | 2016-09-16 | 2016-09-16 | A kind of aerosol generator based on venturi principle |
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Cited By (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 |
Cited By (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 |
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| Publication number | Publication date |
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| CN106179139B (en) | 2018-09-14 |
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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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