CN203025079U - Steam generator with periodically changed pressure - Google Patents
Steam generator with periodically changed pressure Download PDFInfo
- Publication number
- CN203025079U CN203025079U CN 201320028523 CN201320028523U CN203025079U CN 203025079 U CN203025079 U CN 203025079U CN 201320028523 CN201320028523 CN 201320028523 CN 201320028523 U CN201320028523 U CN 201320028523U CN 203025079 U CN203025079 U CN 203025079U
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- air inlet
- pressure
- stop valve
- sample cell
- hygrometer
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Abstract
The utility model belongs to the field of chemical equipments, and particularly relates to an air pressure generator. The technical scheme is that a steam generator with periodically changed pressure is characterized in that a water bath is connected with one end of an air inlet pipeline, and the other end of the air inlet pipeline passes through an infrared sample tank bin to communicate with a sample tank; one end of an air outlet pipeline is communicated with the sample tank while the other end of the air outlet pipeline passes through an infrared sample bin to connect with a vacuum pump; a barometer is arranged on the air inlet pipeline; a hygrometer is arranged on the air outlet pipeline; an air inlet check valve is arranged on the air inlet pipeline between the barometer and the water bath; an air outlet check valve is arranged on the air outlet pipeline between the hygrometer and a vacuum pump; and a pressure control valve is respectively connected with the air inlet check valve, the barometer, the hygrometer and the air outlet check valve. The steam pressure is periodically changed by utilizing the steam generator, thus the step-can condition is met; the amount of water molecules in reaction can be controlled to react with aerosol particles by controlling the pressure of the steam, and therefore, a strict repeatable chemical reaction environment is provided.
Description
Technical field
The utility model belongs to the chemical experiment field, is specifically related to a kind of steam evaporator.
Background technology
The key factor that gasoloid affects atmospheric environment mainly comprises chemical composition, phase and the size that changes the gasoloid size that causes due to hydroscopicity; Studies show that under the higher condition of ambient humidity, the size of aerosol particle increases, and will cause thus its light scattering effect to change; Infrared spectrum technology can the detection of compound molecule the structural informations such as accumulation mode, molecular orientation and intermolecular interaction, be a kind of very important means of research circle's surface chemistry.According to uncertainty principle, the spectrum that continuous sweep obtains is difficult to satisfy simultaneously high time resolution and spectrally resolved.Step-scan vacuum infrared spectral technique has made up the deficiency of this respect, and spectral resolution can reach 1cm-1, and temporal resolution can reach nanosecond simultaneously.But therefore the course of reaction that step-scan is only applicable to repeat fully creates a chemical environment that repeats fully and is absolutely necessary to realizing simultaneously high spectral resolution and time resolution.
Summary of the invention
The purpose of this utility model is: a kind of water vapor generation device is provided, by the uninterrupted of control gas and the residence time of certain air pressure, build the chemical environment that a kind of gasoloid surface and interface etching process repeats, obtain the surface and interface structural information by the test of step-scan vacuum infrared, further investigate aerocolloidal physical and chemical process.
The technical solution of the utility model is: a kind of pressure is periodically variable steam evaporator, and it comprises: water-bath, air inlet stop valve, barometer, pressure control center, hygrometer, give vent to anger stop valve and vacuum pump; Its peripherals is infrared sample cell and spectroanalysis instrument;
Infrared sample cell comprises: seal case and the sample cell that is arranged in seal case; The medianly zygomorphic transparent window of infrared light that is provided with of seal case; Sample cell is column structure, and its two ends are sealed by optical base-substrate, and on optical base-substrate, precipitation has aerosol sample; The optical base-substrate at sample cell two ends is coaxial with the window of the seal case left and right sides; Spectroanalysis instrument is connected with infrared sample cell;
Water-bath connects an end of air inlet pipeline, and the other end of air inlet pipeline passes infrared sample bin and is communicated with sample cell, and an end of outlet pipe is communicated with sample cell, and the other end passes infrared sample bin and connects vacuum pump; Barometer is arranged on air inlet pipeline, and hygrometer is arranged on outlet pipe, and the air inlet pipeline between barometer and water-bath is provided with the air inlet stop valve, is provided with the stop valve of giving vent to anger on the outlet pipe between hygrometer and vacuum pump;
Pressure control center is connected with air inlet stop valve, hygrometer, barometer, the stop valve of giving vent to anger respectively.
During experiment, water-bath produces water vapor and enters sample cell along air inlet pipeline, and the aerosol sample on optical base-substrate carries out surface etch with the water vapor that enters, and infrared spectrometer can be in the collected specimens signal; According to the requirement to water vapour pressure, by the gas flow of pressure control center's control air inlet stop valve and the stop valve of giving vent to anger, uninterrupted can be read by barometer, can read relative humidity by hygrometer; Regulate the time of the opening and closing of air inlet stop valve and the stop valve of giving vent to anger, the residence time that can realize a certain pressure.After time and pressure were determined, valve opening was constant, and the time is constant just can realize that water vapour pressure is cyclical variation.
The beneficial effects of the utility model are: (1) utilizes the utility model that water vapour pressure is changed in a certain way, and the pressure that obtains like this has good periodicity and repeatability, satisfies the condition of step-scan; Can control quantitatively by the pressure of controlling water vapor the water molecule number that reacts, react with quantitative aerosol particle, a kind of chemical reaction environment of strict repeatability is provided, for obtaining the structure of gasoloid surface and interface etching process intermediate, the information such as state of aggregation and intermolecular interaction provide effective device; (2) the utility model has been realized intellectuality, realize control to stop valve by pressure control center, and by the barometer that is connected with pressure control center and hygrometer can very intuitively must be observed water vapour pressure and humidity changes, the condition of being convenient to carry out is at any time as requested controlled.(3) the utility model is easy to clean, dismantle, and is convenient to the maintenance of device.
Description of drawings
Fig. 1 is that in embodiment, the utility model forms schematic diagram;
Fig. 2 is infrared sample bin inner structure schematic diagram in the utility model in embodiment;
Wherein, 1-air inlet pipeline, 2-outlet pipe, 3-sample cell, 4-optical base-substrate, 5-window, 6-water-bath, 7-air inlet stop valve, 8-pressure control center, 9-give vent to anger stop valve, 10-vacuum pump, 11-hygrometer, 12-barometer, 13-micrometering valve A, 14-micrometering valve B.
Embodiment
Referring to accompanying drawing 1, a kind of pressure is periodically variable steam evaporator, and it comprises: water-bath 6, air inlet stop valve 7, barometer 12, pressure control center 8, hygrometer 11, give vent to anger stop valve 9 and vacuum pump 10; Its peripherals is infrared sample cell and spectroanalysis instrument;
Referring to accompanying drawing 2, infrared sample cell comprises: seal case and the sample cell 3 that is arranged in seal case; The medianly zygomorphic transparent window 5 of infrared light that is provided with of seal case; Sample cell 3 is column structure, and its two ends are by optical base-substrate 4 sealings, and on optical base-substrate 4, precipitation has aerosol sample; The optical base-substrate 4 at sample cell 3 two ends is coaxial with the window 5 of the seal case left and right sides; Spectroanalysis instrument is connected with infrared sample cell;
Water-bath 6 connects an end of air inlet pipeline 1, and the other end of air inlet pipeline 1 passes infrared sample bin and is communicated with sample cell 3, and an end of outlet pipe 2 is communicated with sample cell 3, and the other end passes infrared sample bin and connects vacuum pump 10; Barometer 12 is arranged on air inlet pipeline 1, and hygrometer 11 is arranged on outlet pipe 2, and the air inlet pipeline 1 between barometer 12 and water-bath 6 is provided with air inlet stop valve 7, is provided with the stop valve 9 of giving vent to anger on the outlet pipe 2 between hygrometer 11 and vacuum pump 10;
More excellent, for strengthening the accurate control to air inflow and air output, set up a micrometering valve A13 on the connecting line between water-bath 6 and air inlet stop valve 7, the aperture of micrometering valve A13 is controlled by pressure control center 8; Set up a micrometering valve B14 on vacuum pump 10 and the connecting line between stop valve 9 of giving vent to anger, the aperture of micrometering valve B14 is controlled by pressure control center 8;
More excellent, monitor every data in order to facilitate the experimenter, additionally be provided with a display with 8 couplings of pressure control center.
Claims (4)
1. a pressure is periodically variable steam evaporator, it is characterized in that, it comprises: water-bath (6), air inlet stop valve (7), barometer (12), pressure control center (8), hygrometer (11), the stop valve of giving vent to anger (9) and vacuum pump (10); Its peripherals is infrared sample cell and spectroanalysis instrument;
Described infrared sample cell comprises: seal case and the sample cell (3) that is arranged in seal case; The medianly zygomorphic transparent window of infrared light (5) that is provided with of described seal case; Described sample cell (3) is column structure, and its two ends are by optical base-substrate (4) sealing, and the upper precipitation of described optical base-substrate (4) has aerosol sample; The described optical base-substrate (4) at described sample cell (3) two ends is coaxial with the window (5) of the described seal case left and right sides; Described spectroanalysis instrument is connected with described infrared sample cell;
Described water-bath (6) connects an end of air inlet pipeline (1), the other end of described air inlet pipeline (1) passes infrared sample bin and is communicated with described sample cell (3), one end of described outlet pipe (2) is communicated with described sample cell (3), and the other end passes described infrared sample bin and connects described vacuum pump (10); Described barometer (12) is arranged on described air inlet pipeline (1), described hygrometer (11) is arranged on described outlet pipe (2), air inlet pipeline (1) between described barometer (12) and described water-bath (6) is provided with described air inlet stop valve (7), is provided with the described stop valve of giving vent to anger (9) on the outlet pipe (2) between described hygrometer (11) and described vacuum pump (10);
Described pressure control center (8) is connected with described air inlet stop valve (7), hygrometer (11), barometer (12), the stop valve of giving vent to anger (9) respectively.
2. pressure as claimed in claim 1 is periodically variable steam evaporator, it is characterized in that, set up a micrometering valve A(13 on the connecting line between described water-bath (6) and described air inlet stop valve (7)), described micrometering valve A(13) aperture controlled by described pressure control center (8).
3. pressure as claimed in claim 1 or 2 is periodically variable steam evaporator, it is characterized in that, set up a micrometering valve B(14 on the connecting line between described vacuum pump (10) and the described stop valve of giving vent to anger (9)), the aperture of described micrometering valve B (14) is controlled by described pressure control center (8).
4. pressure as claimed in claim 1 or 2 is periodically variable steam evaporator, it is characterized in that, is provided with a display with described pressure control center (8) coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028523 CN203025079U (en) | 2013-01-18 | 2013-01-18 | Steam generator with periodically changed pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028523 CN203025079U (en) | 2013-01-18 | 2013-01-18 | Steam generator with periodically changed pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203025079U true CN203025079U (en) | 2013-06-26 |
Family
ID=48649058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320028523 Expired - Fee Related CN203025079U (en) | 2013-01-18 | 2013-01-18 | Steam generator with periodically changed pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203025079U (en) |
-
2013
- 2013-01-18 CN CN 201320028523 patent/CN203025079U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130626 Termination date: 20140118 |