CN202453309U - Testing device for solution droplet flash evaporation experiment - Google Patents
Testing device for solution droplet flash evaporation experiment Download PDFInfo
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- CN202453309U CN202453309U CN2012201047270U CN201220104727U CN202453309U CN 202453309 U CN202453309 U CN 202453309U CN 2012201047270 U CN2012201047270 U CN 2012201047270U CN 201220104727 U CN201220104727 U CN 201220104727U CN 202453309 U CN202453309 U CN 202453309U
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a testing device for a solution droplet flash evaporation experiment. The device can perform flash evaporation for droplets of two-element or multi-element mixed liquor at a joint of a thermocouple in a vacuum flash evaporation tank, a series of devices including a high-speed camera, a thermal infrared imager, the thermocouple and a thermometer in the vacuum tank are used for recording the shape of the droplets, the temperature of the droplets and the change of a surrounding temperature field of the droplets, a flash evaporation and freezing process of the droplets in vacuum is researched, and cold generated by a flash evaporation surface due to pressure reduction can be stored and utilized via phase-change substances when gas is delivered in a tube by the aid of a flash evaporation principle. Besides, the flash evaporation principle is also utilized in terms of seawater desalinization, namely, air pressure is reduced, seawater which is heated property is delivered into an artificial vacuum distillation chamber, and fresh water in the seawater can be quickly evaporated instantly and is totally changed into water vapor. The testing device provides the best way to research vacuum droplet flash evaporation technology, can be used for further researching different impact factors in the droplet flash evaporation principle.
Description
Technical field
The utility model relates to solution droplets flash evaporation technology field, particularly solution droplets flash distillation experiment test device.
Background technology
Flash distillation is widely used in the industry such as refrigeration industry, desalination chemical industry.Freezing and evaporating also is applied in the food storage.During research reactor cooling medium loss of-coolant accident (LOCA), also more deep discussion has been carried out in flash distillation; Shin HT etc. has reported that water droplet sprays the theoretical research in the vacuum into and experimentally does, and has adopted the diffusive evaporation controlling models in the theoretical research, and minimum temperature that drop can reach and flash distillation factor are not appeared in the newspapers as yet; Hind marsh etc. have adopted the cold airflow experimental observation stage of droplets freeze in the drop flash vaporization process, are the cooling procedures of drop in the cold airflow but he is directed against, are not quite similar with the vacuum flashing process.For better research, need set up a fairly perfect experiment test device.
Some researchers were when research drop flash distillation experiment (device that " research of low pressure flash droplet morphology and temperature variation " of publication is adopted in " Engineering Thermophysics journal ") in the past, and system is by a test tank body, a vacuum tank (0.8m
3), a vacuum pump, and the number extraction system is formed.Be connected with the embedded steel wire plastics pipe of .DN20 between vacuum pump and the vacuum tank; Vacuum tank also is connected with the embedded steel wire plastics pipe of DN20 between the tank body with test; For making each opening time consistent, adopt the solenoid valve action, the solenoid valve complete opening time is 0.5 second, pressure transducer adopts the 3501CA absolute pressure transducer.At thermopair head suspension drop, adjust the position of drop and hang drop with injector for medical purpose during experiment, drop is suspended on the thermocouple wire by tension force.Above the thermopair node, paste the coordinate paper of 0.5mm scale, be used for the size of Calibration droplets diameter.Taking the change procedure of drop flash distillation takes with high-speed camera.This device outside line is complicated, and observes the instrument of usefulness also have only a video camera, and the observation phenomenon is not very clear, and the structure of single unit system is compact inadequately in addition, and the area that takies is huger, remains to be improved.Its course of work: the open vacuum pump is taken out the pressure of 10 predetermined vacuum level with the pressure in the jar, crosses when hanging down and can use open to atmosphere valve to adjust.With drop suspension good back sealing; Opens solenoid valve; Because the test tank internal pressure reduces suddenly, the drop flash vaporization process will begin in a minute, and note the process of pressure in drop temperature, the test tank and phase transformation respectively this moment with thermopair, pressure transducer and high-speed camera.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art; The utility model purpose provides solution droplets flash distillation experiment test device; Be intended in the more perfect research halide salt solution drop flash vaporization process influence factor such as pressure, temperature, the concrete scope and the numerical value of concentration proportioning, disclose the rule of drop surface heat and mass.
To achieve these goals, the technical scheme that the utility model adopted mainly is:
Solution droplets flash distillation experiment test device; Comprise flash tank 11, the upper end of said flash tank 11 is equipped with the thermopair 5 that can place drop 6, and the tank body of said flash tank 11 itself is provided with vacuum meter 1 and glass sight glass 7; Said camera arrangement is arranged at glass sight glass 7 one sides; Said camera arrangement comprises the thermal camera 9 and high-speed camera 10 of parallel connection, and light source 8 is fixed in the top of camera arrangement, and said filming apparatus also is connected with computing machine 4; Vacuum meter 1 also is connected with computing machine 4 through transmitter 3; Said flash tank 11 inside also are provided with a plurality of RTD measuring points, and a plurality of RTD measuring points also are connected with computing machine 4 through transmitter 3, and said flash tank 11 also is connected with big volume vacuum tank.
Said glass sight glass 7 adopts CaF
2Material.
The quantity of said RTD measuring point is 10.
The utility model and existing its advantage of drop flash distillation experimental provision comparison are:
1. install whole compact conformation, wire arrangements is rule very.
2. flash tank sight glass material is CaF
2Glass is good with the record sharpness to experimental observation.
3. flash tank than the good stability that keeps flat cylindrical tube, reduces vibrations and instability that environment causes experiment with square body.
4. adopt two equipment of thermal infrared imager and high-speed camera to the experimentation record simultaneously, accuracy is higher.
Light source and thermal infrared imager, according to high speed camera at homonymy, comparatively convenient to observed and recorded.
Description of drawings
Further specify the utility model below in conjunction with accompanying drawing and case study on implementation.
Fig. 1 is the structural representation of the utility model.
Label among the figure: 1. 2.10 measuring point RTDs of vacuum meter, 3. transmitters, 4. computing machines, 5. thermopairs, 6. drop 7.CaF
2Glass 8. light sources 9. thermal cameras 10. high-speed cameras
Embodiment
Below in conjunction with accompanying drawing, below the structural principle of the utility model is described in further detail.
Solution droplets flash distillation experiment test device; Comprise flash tank 11, the upper end of said flash tank 11 is equipped with the thermopair 5 that can place drop 6, and the tank body of said flash tank 11 itself is provided with vacuum meter 1 and glass sight glass 7; Said camera arrangement is arranged at glass sight glass 7 one sides; Said camera arrangement comprises the thermal camera 9 and high-speed camera 10 of parallel connection, and light source 8 is fixed in the top of camera arrangement, and said filming apparatus also is connected with computing machine 4; Vacuum meter 1 also is connected with computing machine 4 through transmitter 3; Said flash tank 11 inside also are provided with a plurality of RTD measuring points, and a plurality of RTD measuring points also are connected with computing machine 4 through transmitter 3, and said flash tank 11 also is connected with big volume vacuum tank.
Said glass sight glass 7 adopts CaF
2Material.
The quantity of said RTD measuring point is 10.
Principle of work: the drop 6 of solution is suspended on the thermopair 5 node places in flash tank; Through regulating flash tank internal pressure and vacuum tightness, make drop 6 carry out the transient state flash distillation, during process takes place; Detect the variation of drop internal temperature through thermopair 5; 10 RTD measuring point test indoor temperature change generated in case change through the pressure in the vacuum meter 1 observation flash tank, utilize high-speed camera 10 to also have thermal camera 9 to pass through CaF simultaneously
2Glass sight glass 7 is noted a series of variations such as form in this drop flash vaporization process, phase, and these record data are passed to computing machine 4 carries out summary record, and analyzes so that research.
This device can change according to the step of drop internal temperature judges its temperature decline rate, discloses thermal loss, i.e. the vaporization of evaporation section caloric receptivity; Change and speed differentiation hydrone escape difficulty according to droplet morphology; Change according to the drop temperature field surrounding and to come movement velocity and the track of initial analysis hydrone in tank body.This device can repeat the experiment of variable concentrations solution droplets, after observation analysis and contrast, can tentatively judge the regularity of concentration proportioning to flash distillation rate and the influence of flash distillation speed; Can also test various two yuan or the combinations of polynary halogen, after observation analysis and contrast, can the more excellent halogen combination of preliminary screening flash distillation rate.In addition, this device can also carry out when the polybasic salt solution of more excellent flash distillation rate is confirmed, the drop flash distillation experiment of different big small particle diameter influences the relevant parameter of percent crystallization in massecuite from drop internal temperature and the research of flash distillation rate, confirms that particle diameter is to flash distillation rate and Influence of Temperature.
More than show and described ultimate principle of the utility model and the advantage of principal character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in above-mentioned enforcement and the instructions that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. solution droplets flash distillation experiment test device; Comprise flash tank (11), the upper end of said flash tank (11) is equipped with the thermopair (5) that can place drop (6), and the tank body of said flash tank (11) itself is provided with vacuum meter (1) and glass sight glass (7); Said camera arrangement is arranged at glass sight glass (7) side; Said camera arrangement comprises the thermal camera (9) and the high-speed camera (10) of parallel connection, and light source (8) is fixed in the top of camera arrangement, and said filming apparatus also is connected with computing machine (4); Vacuum meter (1) also is connected with computing machine (4) through transmitter (3); Said flash tank (11) inside also is provided with a plurality of RTD measuring points, and a plurality of RTD measuring points also are connected with computing machine (4) through transmitter (3), and said flash tank 11 also is connected with big volume vacuum tank.
2. solution droplets flash distillation experiment test device according to claim 1 is characterized in that, said glass sight glass (7) adopts CaF
2Material.
3. solution droplets flash distillation experiment test device according to claim 1 is characterized in that the quantity of said RTD measuring point is ten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201047270U CN202453309U (en) | 2012-03-19 | 2012-03-19 | Testing device for solution droplet flash evaporation experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201047270U CN202453309U (en) | 2012-03-19 | 2012-03-19 | Testing device for solution droplet flash evaporation experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202453309U true CN202453309U (en) | 2012-09-26 |
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ID=46869164
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201047270U Expired - Fee Related CN202453309U (en) | 2012-03-19 | 2012-03-19 | Testing device for solution droplet flash evaporation experiment |
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|---|---|
| CN (1) | CN202453309U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297252A (en) * | 2014-09-23 | 2015-01-21 | 东南大学 | Fuel particle hot collision recovery coefficient measurement device and measurement method |
| CN106248719A (en) * | 2016-08-22 | 2016-12-21 | 上海交通大学 | It is applied to the measurement system of pipeline stream-liquid two-phase flow flass parameter |
| CN106370690A (en) * | 2016-08-22 | 2017-02-01 | 上海交通大学 | Pipeline two-phase flow flash evaporation test system and method |
| CN108828130A (en) * | 2018-04-25 | 2018-11-16 | 安徽工业大学 | It is a kind of convenient for the drop evaporation observed and shot and burner and experimental method |
| CN109557062A (en) * | 2018-12-10 | 2019-04-02 | 徐州工程学院 | A kind of desulfurization wastewater drop evaporation test device and test method |
| CN109781176A (en) * | 2018-12-27 | 2019-05-21 | 西安交通大学 | Danger medium flash boiling spray two phase flow and mist generating device and test method |
| RU2719264C1 (en) * | 2019-10-09 | 2020-04-17 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский государственный университет" (НИ ТГУ) | Device for determining rate of evaporation of droplet |
| CN111693562A (en) * | 2020-06-24 | 2020-09-22 | 上海理工大学 | Height-adjustable single-droplet flash evaporation experimental device |
| CN112730510A (en) * | 2020-12-24 | 2021-04-30 | 西安交通大学 | Liquid drop radiation heat exchange experimental device and method |
-
2012
- 2012-03-19 CN CN2012201047270U patent/CN202453309U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297252A (en) * | 2014-09-23 | 2015-01-21 | 东南大学 | Fuel particle hot collision recovery coefficient measurement device and measurement method |
| CN106248719A (en) * | 2016-08-22 | 2016-12-21 | 上海交通大学 | It is applied to the measurement system of pipeline stream-liquid two-phase flow flass parameter |
| CN106370690A (en) * | 2016-08-22 | 2017-02-01 | 上海交通大学 | Pipeline two-phase flow flash evaporation test system and method |
| CN106248719B (en) * | 2016-08-22 | 2020-05-08 | 上海交通大学 | Measurement system applied to flash evaporation phenomenon parameters of pipeline vapor-liquid two-phase flow |
| CN106370690B (en) * | 2016-08-22 | 2021-04-02 | 上海交通大学 | Pipeline two-phase flow flash evaporation test system and method |
| CN108828130A (en) * | 2018-04-25 | 2018-11-16 | 安徽工业大学 | It is a kind of convenient for the drop evaporation observed and shot and burner and experimental method |
| CN109557062A (en) * | 2018-12-10 | 2019-04-02 | 徐州工程学院 | A kind of desulfurization wastewater drop evaporation test device and test method |
| CN109781176A (en) * | 2018-12-27 | 2019-05-21 | 西安交通大学 | Danger medium flash boiling spray two phase flow and mist generating device and test method |
| RU2719264C1 (en) * | 2019-10-09 | 2020-04-17 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский государственный университет" (НИ ТГУ) | Device for determining rate of evaporation of droplet |
| CN111693562A (en) * | 2020-06-24 | 2020-09-22 | 上海理工大学 | Height-adjustable single-droplet flash evaporation experimental device |
| CN112730510A (en) * | 2020-12-24 | 2021-04-30 | 西安交通大学 | Liquid drop radiation heat exchange experimental device and method |
| CN112730510B (en) * | 2020-12-24 | 2022-02-22 | 西安交通大学 | Liquid drop radiation heat exchange experimental device and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20130319 |