CN109283211B - Multi-parameter coupling liquid drop evaporation experiment channel - Google Patents
Multi-parameter coupling liquid drop evaporation experiment channel Download PDFInfo
- Publication number
- CN109283211B CN109283211B CN201811311355.7A CN201811311355A CN109283211B CN 109283211 B CN109283211 B CN 109283211B CN 201811311355 A CN201811311355 A CN 201811311355A CN 109283211 B CN109283211 B CN 109283211B
- Authority
- CN
- China
- Prior art keywords
- section
- channel
- experiment
- rectifying
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
- G01N25/12—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering of critical point; of other phase change
Abstract
The invention discloses a multi-parameter coupling liquid drop evaporation experiment channel which is annular and comprises a fan section, a temperature adjusting section, a pressurizing section, a rectifying section, a flow stabilizing section and an experiment section which are sequentially connected end to end, wherein an operation table, a heater and a radiation tester are arranged in the experiment section. Compared with the prior art, the invention has the following advantages: the fan, the heating wire and the booster pump are all connected to the control system, and the power of the fan, the heating wire and the fan is controlled by signals of the collector, so that the stable state of the air speed, the temperature and the pressure in the evaporation chamber is facilitated; the radiation measuring instrument is arranged on the lifting operation platform, has the same height with the lifting operation platform and can measure the radiation degree change in the evaporation process; a rectifying grid is arranged at the bend, so that the disturbance of the airflow in the channel is smaller; the rectifying section is provided with a rectifying layer, so that air inlet of the experimental section is more uniform; the glass window arranged on the outer wall of the evaporation chamber can monitor the liquid drop form change in the evaporation process in real time.
Description
Technical Field
The invention relates to the technical field of evaporation, in particular to a liquid drop evaporation experiment platform with variable wind speed, temperature and pressure.
Background
With the intensive research on the liquid drop evaporation process, the accurate control of the technological process parameters is more and more important for the correct analysis of the mechanism of the liquid drop evaporation process. The droplet form, temperature and irradiance, which change in real time during the evaporation process, are very important process parameters. However, in view of the research on evaporation technologies and evaporation equipment at home and abroad, there is no evaporation experimental platform capable of simultaneously and precisely recording and measuring real-time changes of droplet shapes under different conditions of ambient airflow velocity, temperature and radiation intensity at home and abroad at present, and most of the existing evaporation experimental platforms can only carry out droplet evaporation experiments under the condition of changing single variable, cannot simultaneously research the influence caused by multi-parameter coupling, are complex in experimental operation, and are not beneficial to deep research on evaporation mechanisms.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a multi-parameter coupling liquid drop evaporation experiment channel.
The invention is realized by the following technical scheme: a multiparameter coupling liquid drop evaporation experiment channel is characterized in that: the multi-parameter coupling liquid drop evaporation experiment channel comprises a fan section, a temperature regulating section, a pressurizing section, a rectifying section, a flow stabilizing section and an experiment section, wherein the fan section, the temperature regulating section, the pressurizing section, the rectifying section, the flow stabilizing section and the experiment section are sequentially connected end to form an annular channel; an operation table, a heater, a radiation tester and a liquid drop fixing device are arranged in the test section, the operation table is horizontally arranged in the test section, the radiation tester is arranged on the operation table, and the operation table is also provided with the liquid drop fixing device; the steady flow section is of a hollow tubular structure, and a pressure sensor, an anemoscope and a thermocouple are arranged in the steady flow section; a rectifying layer net is arranged in the rectifying section; the booster section is provided with a booster pump, and an outlet of the booster pump is communicated with the booster section; an electric heating device is arranged in the temperature adjusting section; the fan section is internally provided with a fan.
As a further improvement of the scheme, a heat-insulating layer is arranged on the outer layer of the multi-parameter coupling droplet evaporation experiment channel.
As a further improvement to the above, the cross section of the temperature regulating section is smaller than that of the fan section.
As a further improvement to the above scheme, the electric heating device selects the electric heating wires, the electric heating wires are arranged in more than one row, and the distance between every two rows of the electric heating wires is adjustable.
As a further improvement to the above scheme, a lifting device is further arranged in the test section, and the operating platform is arranged on the lifting device.
As a further improvement to the above, the side walls of the channel of the test section are provided with observation windows.
As a further improvement of the scheme, an operation window is arranged on the side wall of the channel of the test section, the operation window and the observation window are arranged on different side surfaces of the channel, and the operation window is connected with the side wall of the channel through a sealing ring and a screw.
As a further improvement of the scheme, the fan section, the temperature adjusting section, the pressurizing section, the rectifying section, the flow stabilizing section and the experiment section are straight pipe type channels, the multi-parameter coupling evaporation experiment channel further comprises a bent channel, the bent channel is used for being connected with the straight pipe type channels to form a closed annular channel, a curve rectifying barrier is arranged in the bent channel, the curve rectifying barrier is arc-shaped, and the position of the circle center of the curved surface of the curve rectifying barrier coincides with the position of the circle center of the bent channel.
As a further improvement to the above scheme, the pressure sensor, the anemoscope and the thermocouple in the steady flow section are all installed through jacks arranged on the side wall of the channel.
As a further improvement to the above scheme, the fan, the electric heating device and the booster pump are all connected with the controller, the pressure sensor, the anemoscope, the thermocouple and the radiation measuring instrument are all connected with the data acquisition unit, and the controller and the data acquisition unit are all connected with the control computer.
Compared with the prior art, the invention has the following advantages: the fan, the heating wire and the booster pump in the experimental device are all connected to the control system, and the power of the fan, the heating wire and the fan is controlled through signals of the collector, so that the stable state of the wind speed, the temperature and the pressure in the evaporation chamber is facilitated; the wind speed measuring instrument, the pressure sensor, the thermocouple and the radiation measuring instrument are connected with a computer so as to record data in real time and facilitate data acquisition and later data analysis; the radiation measuring instrument is arranged on the lifting operation platform and has the same height with the lifting operation platform so as to measure the change of radiation degree in the evaporation process; a rectifying grid is arranged at the bend, so that the disturbance of the airflow in the channel is smaller; the rectifying section is provided with a rectifying layer, so that air inlet of the experimental section is more uniform; the glass window arranged on the outer wall of the evaporation chamber can monitor the liquid drop form change in the evaporation process in real time.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
A multiparameter coupling liquid drop evaporation experiment channel is characterized in that: the multi-parameter coupling liquid drop evaporation experiment channel comprises a fan section 1, a temperature adjusting section 2, a pressurizing section 3, a rectifying section 4, a flow stabilizing section 5 and an experiment section, wherein the fan section 1, the temperature adjusting section 2, the pressurizing section 3, the rectifying section 4, the flow stabilizing section 5 and the experiment section are sequentially connected end to form an annular channel; an operation table 61, a heater 62, a radiation tester 63 and an operation table 61 are arranged in the test section 6, the radiation tester 63 is arranged on the operation table 61, and a liquid drop fixing device 64 is also arranged on the operation table 61; the steady flow section 5 is of a hollow tubular structure, and a pressure sensor 51, an anemoscope 52 and a thermocouple 53 are arranged in the steady flow section 5; a rectifying layer net 41 is arranged in the rectifying section 4; the booster section 3 is provided with a booster pump 31, and the outlet of the booster pump 31 is communicated with the booster section 3; an electric heating device 21 is arranged in the temperature adjusting section 2; a fan 11 is arranged in the fan section 1.
And a heat-insulating layer is arranged on the outer layer of the multi-parameter coupling droplet evaporation experiment channel.
The cross section of the temperature adjusting section 2 is smaller than that of the fan section 1. The reduction in the size of the passages increases the flow rate of the air flow, thereby increasing the efficiency of heat transfer between the air flow and the electric heating device 21.
The electric heating device 21 adopts more than one row of electric heating wires, and the distance between every two rows of electric heating wires can be adjusted. When the power of the electric heating wires is not enough to realize the temperature required by the test, the distance between the electric heating wires can be properly adjusted, so that the experimental condition is achieved.
The test section 6 is also provided with a lifting device 69, and the operating platform 61 is arranged on the lifting device 69. The distance of the evaporated droplets from the radiation source is varied by means of the lifting device 69 for examining the evaporation of the droplets at different distances.
The side wall of the channel of the test section 6 is provided with a viewing window 65. The observation window 65 is used to observe and measure the morphology of the droplets.
An operation window 66 is arranged on the side wall of the channel of the test section 6, the operation window 66 and the observation window 65 are arranged on different sides of the channel, and the operation window 66 is connected with the side wall of the channel through a sealing ring 68 and a screw 67. The operating window 66 can be opened to dispense the test material and adjust the relevant parameters of the operating table 61.
The fan section 1, the temperature adjusting section 2, the pressurizing section 3, the rectifying section 4, the flow stabilizing section 5 and the experiment section are straight pipe type channels, the multi-parameter coupling evaporation experiment channel further comprises a bent channel 7, the bent channel 7 is used for being connected with the straight pipe type channels to form a closed annular channel, a bent channel rectifying barrier 71 is arranged in the bent channel 7, the bent channel rectifying barrier 71 is arc-shaped, and the circle center position of the curved surface of the bent channel rectifying barrier 71 is overlapped with the circle center position of the bent channel 7. When the airflow flows, the airflow turns when meeting the curved channel 7, the airflow is easy to generate turbulent flow at the moment, so that the stability of the airflow of the test section 6 is influenced, the liquid film form is influenced to a certain extent, and the airflow disturbance can be reduced to the maximum extent by combining the curve rectification barrier 71 with the rectification section 4.
The pressure sensor 51, anemometer 52 and thermocouple 53 in the flow stabilizer 5 are all mounted through jacks provided on the side walls of the tunnel.
The fan 11, the electric heating device 21 and the booster pump 31 are all connected with a controller 82, the pressure sensor 51, the anemoscope 52, the thermocouple 53 and the radiation detector 63 are all connected with a data acquisition unit 81, and the controller 82 and the data acquisition unit 81 are all connected with the control computer 8.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A multiparameter coupling liquid drop evaporation experiment channel is characterized in that: the multi-parameter coupling liquid drop evaporation experiment channel comprises a fan section, a temperature regulating section, a pressurizing section, a rectifying section, a flow stabilizing section and an experiment section, wherein the fan section, the temperature regulating section, the pressurizing section, the rectifying section, the flow stabilizing section and the experiment section are sequentially connected end to form an annular channel; an operation table, a heater, a radiation tester and a liquid drop fixing device are arranged in the experiment section, the operation table is horizontally arranged in the experiment section, the radiation tester is arranged on the operation table, and the operation table is also provided with the liquid drop fixing device; the flow stabilizing section is of a hollow tubular structure, and a pressure sensor, an anemoscope and a thermocouple are arranged in the flow stabilizing section; a rectifying layer net is arranged in the rectifying section; the booster section is provided with a booster pump, and an outlet of the booster pump is communicated with the booster section; an electric heating device is arranged in the temperature adjusting section; a fan is arranged in the fan section; the cross section of the temperature adjusting section is smaller than that of the fan section; the electric heating device adopts electric heating wires, more than one row of electric heating wires are arranged, and the distance between every two rows of electric heating wires is adjustable; the experiment section is also internally provided with a lifting device, and the operating platform is arranged on the lifting device; the multi-parameter coupling evaporation experimental channel also comprises a bent channel, the bent channel is used for connecting the straight tube channel to form a closed annular channel, a curve rectifying barrier is arranged in the bent channel, the curve rectifying barrier is arc-shaped, and the position of the circle center of the curved surface of the curve rectifying barrier is coincided with the position of the circle center of the bent channel; the fan, the electric heating device and the booster pump are all connected with a controller, the pressure sensor, the anemoscope, the thermocouple and the radiation measuring instrument are all connected with a data acquisition unit, and the controller and the data acquisition unit are all connected with a control computer; and an observation window is arranged on the side wall of the channel of the experimental section.
2. The multiparameter coupled droplet evaporation experimental channel of claim 1, wherein: and a heat-insulating layer is arranged on the outer layer of the multi-parameter coupling droplet evaporation experiment channel.
3. The multiparameter coupled droplet evaporation experimental channel of claim 1, wherein: an operation window is arranged on the side wall of the channel of the test section, the operation window and the observation window are arranged on different side faces of the channel, and the operation window is connected with the side wall of the channel through a sealing ring and a screw.
4. The multiparameter coupled droplet evaporation experimental channel of claim 1, wherein: and the pressure sensor, the anemoscope and the thermocouple in the steady flow section are all installed through jacks arranged on the side wall of the channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811311355.7A CN109283211B (en) | 2018-11-06 | 2018-11-06 | Multi-parameter coupling liquid drop evaporation experiment channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811311355.7A CN109283211B (en) | 2018-11-06 | 2018-11-06 | Multi-parameter coupling liquid drop evaporation experiment channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109283211A CN109283211A (en) | 2019-01-29 |
| CN109283211B true CN109283211B (en) | 2021-10-15 |
Family
ID=65174835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811311355.7A Active CN109283211B (en) | 2018-11-06 | 2018-11-06 | Multi-parameter coupling liquid drop evaporation experiment channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109283211B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327067A (en) * | 2020-10-20 | 2021-02-05 | 郑州大学 | Flow-induced vibration energy harvesting model performance experiment testing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202697A (en) * | 2016-09-08 | 2017-09-26 | 江苏科技大学 | A kind of high turbulent flow list drop evaporation test device of HTHP and its method |
| CN107884152A (en) * | 2017-11-03 | 2018-04-06 | 西安交通大学 | A kind of experimental provision and method for plane wall jet flow gaseous film control |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997978A (en) * | 2012-11-27 | 2013-03-27 | 山东迪泽仪表科技有限公司 | Ring chamber positive pressure flow detection device |
| CN203037324U (en) * | 2012-11-27 | 2013-07-03 | 山东迪泽仪表科技有限公司 | Annular chamber positive pressure flow detection device |
| CN104019956B (en) * | 2014-06-11 | 2017-07-11 | 中国环境科学研究院 | Wind-tunnel is demarcated in the environmental simulation of loop checking installation |
| CN106017854A (en) * | 2016-07-14 | 2016-10-12 | 山东科技大学 | Dust environment simulation and measurement system |
| CN106840577A (en) * | 2017-04-07 | 2017-06-13 | 中国环境科学研究院 | Wind-tunnel is demarcated in a kind of environmental simulation |
| CN108051175B (en) * | 2017-11-30 | 2020-08-11 | 国家电网公司 | Laboratory circulation wind tunnel device |
-
2018
- 2018-11-06 CN CN201811311355.7A patent/CN109283211B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202697A (en) * | 2016-09-08 | 2017-09-26 | 江苏科技大学 | A kind of high turbulent flow list drop evaporation test device of HTHP and its method |
| CN107884152A (en) * | 2017-11-03 | 2018-04-06 | 西安交通大学 | A kind of experimental provision and method for plane wall jet flow gaseous film control |
Non-Patent Citations (3)
| Title |
|---|
| An analysis of the d2-law departure during droplet evaporation in microgravity;Christian Chauveau 等;《international journal of multiphase flow》;20101105;全文 * |
| 多组分液滴对流蒸发过程的实验研究;邵冰;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》;20170315(第3期);第13页图2.1 * |
| 红外激光加热下球形液滴蒸发特性研究;贾卓杭;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20170215(第2期);正文第20-21页，图2-9 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109283211A (en) | 2019-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111735844B (en) | Experimental system and method for cooling test of front edge of turbine blade under rotation condition | |
| CN105928975A (en) | Variable-atmosphere pressure heat conductivity coefficient testing device based on transient plane source method | |
| CN109283211B (en) | Multi-parameter coupling liquid drop evaporation experiment channel | |
| CN107884152A (en) | A kind of experimental provision and method for plane wall jet flow gaseous film control | |
| CN110441021A (en) | A kind of Flat Plate Turbulent Boundary Layer flow field structure measuring device and method based on PIV | |
| CN108279187A (en) | The test device and test method of fluid viscosity | |
| CN102589921B (en) | Rotatable experimental apparatus for low-temperature high-humidity gas-gas heat exchanger | |
| CN102662417A (en) | Method and device for controlling humidity of aerosol | |
| CN113295376A (en) | Small wind tunnel experiment system for research of miniature flapping wing aircraft | |
| CN206111158U (en) | Linear physical simulation measurement and control device of viscous crude oil reservoir thermal recovery | |
| CN108279257B (en) | Device and method for measuring forced convection heating rod cluster noose number | |
| CN111442898A (en) | Small and medium-sized low-speed wind tunnel test device for testing pesticide fog drop space operation characteristics and drift deposition | |
| CN107633757B (en) | A kind of diffusion of welding fume controls imitative experimental appliance with blowing and drawing ventilation | |
| CN105136848B (en) | Convection transfer rate, convective transfer coefficient test device and method | |
| CN206114273U (en) | Solar collector automatic tracking testing arrangement | |
| CN106444889B (en) | A kind of high pressure orifice plate gas stagnation temperature control device and method | |
| CN104807522B (en) | High-temperature gas flow measurement standard set-up and its detection method | |
| CN101435626B (en) | Hot air heating apparatus | |
| CN207946330U (en) | The test device of fluid viscosity | |
| CN201133715Y (en) | Hot blast heater | |
| CN202453208U (en) | Rotatable type experimental apparatus for high-humidity dusty gas heat exchanger | |
| CN114001881A (en) | Building door and window air tightness detecting system | |
| CN109298012B (en) | Evaporation experiment platform under temperature and ambient wind speed coupling condition | |
| CN113566639A (en) | Method and system for controlling circulating water discharge capacity of closed cooling tower | |
| CN207528514U (en) | Condense sampler and sampling analytical system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |