CN204594656U - Eddy flow guiding type high pressure nano particle apparatus for aerosol creation - Google Patents
Eddy flow guiding type high pressure nano particle apparatus for aerosol creation Download PDFInfo
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- CN204594656U CN204594656U CN201520228443.6U CN201520228443U CN204594656U CN 204594656 U CN204594656 U CN 204594656U CN 201520228443 U CN201520228443 U CN 201520228443U CN 204594656 U CN204594656 U CN 204594656U
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Abstract
A kind of eddy flow guiding type high pressure nano particle apparatus for aerosol creation, comprise the nanometer trace particle container with high pressure resistant rotary press modelling, high-speed rotational guide nozzle, high pressure drying nitrogen drives pipeline gentle colloidal sol spray pipeline, described nanometer trace particle container is disposable rotary press modelling, design of Fluidized bed is adopted bottom it, in conjunction with high-speed rotational guide nozzle, under the effect of high pressure drying nitrogen drive system, make the wind spout structure of strengthening mixing in container, make nanometer trace particle and the abundant blending of high pressure draught, form nano particle gasoloid, to be tested section is injected by spray pipeline.Eddy flow guiding type high pressure nano particle apparatus for aerosol creation in the utility model, can work under high temperature and high pressure environment, realize that aerocolloidal flow is controlled, Quick uniform mixing and anti-moisture knot, in gasoloid, trace particle mean diameter can reach nanometer scale, for high speed and high pressure trace particle technology.
Description
Technical field
The utility model relates to Particle-beam Tracing measuring technology, the gasoloid particularly under high-pressure high-temperature environment generates and filling apparatus.
Background technology
Particle-beam Tracing measuring technology is in supersonic speed/hypersonic High Speed Flow Field application, and effect is still subject to the extreme influence that particle dispenses technology.There is the labyrinths such as shock wave, the whirlpool district of large scale and Strong shear floor in High Speed Flow Field, particle is proposed to the requirement of flowing followability, and require to ensure particle size as far as possible close to the particle diameter of mean value, and evenly dispense.Large quantity research shows, in order to ensure to have good tracing particle in flow at high speed, domain size distribution should at 30 ~ 200 ran.And little, the easy moisture knot of these nanometer scale trace particle granularities, by the seizure of extreme influence to fine structure, being difficult to ensure tracing particle and measuring accuracy thereof, is the principal element that restriction Particle-beam Tracing technology is applied in flow at high speed.
The particle generator of current business application and dispense device and be difficult to really to be applied in high velocity environment or actual to dispense effect not fully up to expectations, be mainly manifested in: (1) particle accessibility is poor, particle trap cannot ensure that enough large pressure reduction is to ensure that particle fully arrives test environment; (2) particle uniformity is poor, can not solve particle agglomerate and moisture knot problem very well, make distribution of particles uneven, and the followability performance in flow at high speed is inconsistent and affect measuring accuracy; (3) particle filling and cleaning operation complexity, increase the touch opportunity of particle and humid air, is difficult to the drying ensureing particle.
Utility model content
The utility model is for the technical matters existed in above-mentioned prior art, a kind of eddy flow guiding type high pressure nano particle apparatus for aerosol creation is provided, effective solution particle agglomerate and control particle flow, dispense the major issues such as concentration, controls the agglomeration of nano particle and realizes dispensing fast, evenly in high pressure-temperature working environment.The realization of the quantification velocity field measuring technology of the development, particularly high-accuracy high-resolution of Particle-beam Tracing technology in super/hypersonic compressible flows research will be promoted further.
For achieving the above object, the technical scheme that the utility model adopts is as follows:
A kind of eddy flow guiding type high pressure nano particle apparatus for aerosol creation, comprise the nanometer trace particle container with high pressure resistant rotary press modelling, high-speed rotational guide nozzle, high pressure drying nitrogen drives pipeline gentle colloidal sol spray pipeline, described nanometer trace particle container is disposable rotary press modelling, fluidized bed is adopted bottom it, in conjunction with high-speed rotational guide nozzle, under the effect of high pressure drying nitrogen drive system, make the wind spout structure of strengthening mixing in container, make nanometer trace particle and the abundant blending of high pressure draught, form nano particle gasoloid, to be tested section is injected by spray pipeline.
Described high pressure drying nitrogen drives pipe line downstream to arrange pressure stabilizing chamber and pressure valve, ensures pressure stability in particle trap and keeps, with the pressure reduction dispensing test section, gasoloid can being made to dispense and maintain stable particle at test section Quick uniform and dispensing concentration.
Described fluidized bed utilizes high drive nitrogen to form high-speed jet, when gas passes into very high speed the bed stacking nano particle by bottom of device, nano particle shows fluidised phenomenon by under the effect of tangential swirl fluid, promotion particle mixes with surrounding flow, particle can be made fully to be suspended in shape of container uniformly gasoloid, and particle moisture knot phenomenon can be avoided.
Described high-speed rotational guide nozzle adopts tangential swirl designs of nozzles, circumferential eddy flow is formed under high drive nitrogen, high pressure draught is made to form high speed wind spout under cyclone guiding, strengthen the circumferential blending of particle and surrounding flow, make particle concentration high uniformity in gasoloid, and solve particle agglomerate and moisture knot problem.
Described gasoloid spray pipeline adopts high-pressure hose, such as stainless steel, shortens the distance that particle enters test section, and makes that whole gasoloid motion path is smooth leads.By reducing the sudden change such as turnover, boss, the impairment of particle in injection process can be reduced, and improve dismounting efficiency and extend pipeline serviceable life.
Also comprise vacuum pump, for annotating and clearing up the trace particle in nanometer trace particle container, simplify particle filling and scale removal process, decrease the number of times of dismounting container and pipeline, reduce the touch opportunity of trace particle and humid air simultaneously.During filling, adopt vacuum pump to make particle trap form vacuum environment, suck trace particle according to test consumption thus.During cleaning, adopt the residual particles in the direct aspiration container of vacuum pump.
The utility model utilizes high pressure drying nitrogen for driving gas, and maximum working pressure (MWP) can reach 12MPa, and can carry particle concentration variation range is 0.01 ~ 0.2kg/s.In particle trap, isolated nano particles contacts with the air containing water vapor, forms moisture protection layer around nano particle.
The utility model can work under high temperature (1000K) and high pressure (16MPa) environment, binding operation flow process and Control timing sequence are convenient to filling and cleaning particle, can realize that aerocolloidal flow is controlled, Quick uniform mixing and anti-moisture knot, in gasoloid, trace particle mean diameter can reach nanometer scale, solves the tracing particle of high speed and high pressure trace particle technology and dispenses problem.
Advantage of the present utility model can be embodied in the following aspects:
First, guarantee that nano particle avoids clustering phenomena in test whole process;
Secondly, aerosol concentration is stablized controlled, and uniform particle dispenses and concentration is suitable for;
Finally, gasoloid generates safe and reliable, and easy to operate simple and easy, guaranteed efficiency, and particle recovery rate is high, good economy performance.
Accompanying drawing explanation
Fig. 1 is the system construction drawing of the utility model apparatus for aerosol creation;
Fig. 2 is high-speed rotational guide nozzle structural representation;
Fig. 3 be the utility model apparatus for aerosol creation one embodiment dispense design sketch.
Embodiment
Technical solutions of the utility model are further described in detail in conjunction with Figure of description below by way of specific embodiment.
Fig. 1 is the system construction drawing of apparatus for aerosol creation, comprises nanometer trace particle container 1, high-speed rotational guide nozzle 2, high pressure drying nitrogen driving pipeline 3 and gasoloid injection into orbit pipe road 4.Nanometer trace particle container 1 is disposable rotary press modelling, design of Fluidized bed is adopted bottom it, in conjunction with high-speed rotational guide nozzle 2, under the effect of high pressure drying nitrogen drive system, make the wind spout structure of strengthening mixing in nanometer trace particle container 1, make nanometer trace particle 5 and the abundant blending of high pressure draught, form nano particle gasoloid 6, inject to be tested section by spray pipeline.
The design strengthening particle and environment liquid blending and anti-moisture knot is made up of high pressure fluidized bed and cyclone, and the technical measures blocking humid air comprise the application of high pressure drying nitrogen.High pressure drying nitrogen jet forms tangential swirl in particle trap; as lower position in container in Fig. 1 the airflow direction that indicates; circumferential eddy flow is formed in conjunction with high-speed rotational device; as centre position in container in Fig. 1 the airflow direction that indicates; wind spout is formed under combined action between; nano particle be suspended in environmental gas and realize abundant blending, and around nano particle, forming dry protective seam, blocking the contact with humid air.
Maintenance aerosol concentration is stable drives the pressure stabilizing chamber in pipeline 3 (connection nitrogen cylinder) downstream and pressure valve to complete by nitrogen.Because high pressure draught enters undergoes rapid expansion decompression after particle trap, make particle trap pressure occur fluctuation, aerosol concentration and distribution of particles are difficult to keep stable.Therefore, in nitrogen cylinder downstream, adopt pressure stabilizing chamber and pressure valve will effectively to control the fluctuation of container inner pressure, ensure that effective control of aerosol concentration and the homogeneity of distribution of particles.
Gasoloid enters high pressure-temperature working environment via the high pressure resistant flexible pipe of stainless steel.High pressure resistant stainless steel flexible hose shortens the distance that particle enters test section, and makes that whole gasoloid motion path is smooth leads.By reducing the sudden change such as turnover, boss, the impairment of particle in injection process can be reduced, and improve dismounting efficiency and extend pipeline serviceable life.
Particle filling before gasoloid generates and the particle cleaning after generating are pumped in particle trap by vacuum pump and form vacuum environment and complete.Vacuum pump simplifies particle filling and scale removal process, decreases the number of times of dismounting container and pipeline, reduces the touch opportunity of trace particle and humid air simultaneously.During filling, adopt vacuum pump to make particle trap form vacuum environment, suck trace particle according to test consumption thus.During cleaning, adopt the residual particles in the direct aspiration container of vacuum pump.
The utility model apparatus for aerosol creation one embodiment shown in Fig. 3 dispense design sketch, can find out, nano particle distribution homogeneity fine.
The utility model concrete operations flow process is as follows:
(1) aspirated by the particle trap of vacuum pump to the enclosed environment of closing other outlets, until form vacuum environment;
(2) close vacuum pump, open particle trap access drying particulate storage tank, make particle enter particle trap under vacuum;
(3) close particle storage tank, open particle trap access high pressure dry nitrogen gas cylinder.Under pressure stabilizing chamber and pressure valve control, the pressure reduction needed for setting test, makes high pressure nitrogen enter particle trap, under fluidized bed and cyclone combined action, forms wind spout, drives the blending of nano particle and ambient gas, forms nano particle gasoloid.
(4) after stable a period of time, keep particle trap pressure, open apparatus for aerosol creation outlet.High pressure nano particle gasoloid enters to be tested section via the high pressure resistant flexible pipe of stainless steel, completes particle and dispenses fast, evenly.
(5) after having tested, close other outlets, open vacuum pump suction, the residual particles in particle trap is reclaimed.
Above-described embodiment only for illustration of the utility model, but and is not used in the protection domain limiting claim.Every equivalents of carrying out on the basis of technical solutions of the utility model and improvement, all should not get rid of outside protection domain of the present utility model.
Claims (5)
1. an eddy flow guiding type high pressure nano particle apparatus for aerosol creation, it is characterized in that, comprise the nanometer trace particle container with high pressure resistant rotary press modelling, high-speed rotational guide nozzle, high pressure drying nitrogen drives pipeline gentle colloidal sol spray pipeline, described nanometer trace particle container is disposable rotary press modelling, fluidized bed is adopted bottom it, in conjunction with high-speed rotational guide nozzle, under the effect of high pressure drying nitrogen drive system, make the wind spout structure of strengthening mixing in container, make nanometer trace particle and the abundant blending of high pressure draught, form nano particle gasoloid, to be tested section is injected by spray pipeline.
2. eddy flow guiding type high pressure nano particle apparatus for aerosol creation according to claim 1, it is characterized in that, described high pressure drying nitrogen drives pipe line downstream to arrange pressure stabilizing chamber and pressure valve, ensure pressure stability in particle trap and keep, with the pressure reduction of test section, nano particle gasoloid can being made to dispense and maintain stable particle at test section Quick uniform and dispensing concentration.
3. eddy flow guiding type high pressure nano particle apparatus for aerosol creation according to claim 1, it is characterized in that, described high-speed rotational guide nozzle adopts tangential swirl nozzle arrangements, circumferential eddy flow is formed under high drive nitrogen, high pressure draught is made to form high speed wind spout under cyclone guiding, strengthen the circumferential blending of particle and surrounding flow, make particle concentration high uniformity in gasoloid, and solve particle agglomerate and moisture knot problem.
4. eddy flow guiding type high pressure nano particle apparatus for aerosol creation according to claim 1, is characterized in that, described gasoloid spray pipeline adopts high-pressure hose, shortens the distance that particle enters test section, and makes that whole gasoloid motion path is smooth leads.
5. eddy flow guiding type high pressure nano particle apparatus for aerosol creation according to claim 1, is characterized in that, also comprise vacuum pump, for annotating and clearing up the trace particle in nanometer trace particle container.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520228443.6U CN204594656U (en) | 2015-04-15 | 2015-04-15 | Eddy flow guiding type high pressure nano particle apparatus for aerosol creation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520228443.6U CN204594656U (en) | 2015-04-15 | 2015-04-15 | Eddy flow guiding type high pressure nano particle apparatus for aerosol creation |
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| CN204594656U true CN204594656U (en) | 2015-08-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106512872A (en) * | 2016-12-06 | 2017-03-22 | 哈尔滨工程大学 | Long-term fluidized aerosol generating device with self-dispersing function |
| CN106563584A (en) * | 2016-10-09 | 2017-04-19 | 上海交通大学 | Quick response concentration-controllable high-flow nano-particle spreader |
| CN106153816B (en) * | 2016-08-09 | 2018-05-22 | 浙江大学 | Cyclone fluidized bed solids generator |
| CN109585046A (en) * | 2018-12-04 | 2019-04-05 | 中国核动力研究设计院 | A kind of solution injects uniformly and hands over mixing device |
| CN111238766A (en) * | 2020-01-16 | 2020-06-05 | 南方科技大学 | Tracer particle generator |
| CN114527295B (en) * | 2022-02-18 | 2024-05-17 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Rotational flow opposite impact type PIV solid particle generator and particle generation method |
-
2015
- 2015-04-15 CN CN201520228443.6U patent/CN204594656U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153816B (en) * | 2016-08-09 | 2018-05-22 | 浙江大学 | Cyclone fluidized bed solids generator |
| CN106563584A (en) * | 2016-10-09 | 2017-04-19 | 上海交通大学 | Quick response concentration-controllable high-flow nano-particle spreader |
| CN106512872A (en) * | 2016-12-06 | 2017-03-22 | 哈尔滨工程大学 | Long-term fluidized aerosol generating device with self-dispersing function |
| CN106512872B (en) * | 2016-12-06 | 2019-07-16 | 哈尔滨工程大学 | A kind of long-term fluidisation type aerosol generating device with self-dispersing function |
| CN109585046A (en) * | 2018-12-04 | 2019-04-05 | 中国核动力研究设计院 | A kind of solution injects uniformly and hands over mixing device |
| CN109585046B (en) * | 2018-12-04 | 2022-02-01 | 中国核动力研究设计院 | Device for uniformly injecting and mixing solution |
| CN111238766A (en) * | 2020-01-16 | 2020-06-05 | 南方科技大学 | Tracer particle generator |
| CN111238766B (en) * | 2020-01-16 | 2022-02-08 | 南方科技大学 | Tracer particle generator |
| CN114527295B (en) * | 2022-02-18 | 2024-05-17 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Rotational flow opposite impact type PIV solid particle generator and particle generation method |
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