CN1737534A - Monitoring device for color changes of liquid phase chemical reaction under microwave radiation - Google Patents
Monitoring device for color changes of liquid phase chemical reaction under microwave radiation Download PDFInfo
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- CN1737534A CN1737534A CN 200510021624 CN200510021624A CN1737534A CN 1737534 A CN1737534 A CN 1737534A CN 200510021624 CN200510021624 CN 200510021624 CN 200510021624 A CN200510021624 A CN 200510021624A CN 1737534 A CN1737534 A CN 1737534A
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- chemical reaction
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- glass tube
- liquid phase
- microwave radiation
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Abstract
This invention relates to one microwave eradiation liquid phase chemical reaction system color change monitoring device, which is characterized by the following: the device is connected to the wave guide reaction chamber through creeping pump and exit bubble device; the other end of the bubble exit device is connected to photo-electricity; the glass cover in the bubble device is connected to vacuum pump; the one end of photo-electricity is connected to bubble device and with other end connected to wave guide reaction chamber; the photo-electricity device is located with emission circuit and receiving circuit to form one integration.
Description
One, technical field
The present invention relates to a kind of liquid phase chemical reaction under microwave radiation system colors change monitoring device, belong to the monitoring field of chemical reaction process monitoring or technological process.
Two, background technology
N.H.Williams had just reported the result of study of accelerating some chemical reaction with microwave in 1967, microwave is widely used in from the inorganic reaction to the organic reaction now, to the food chemical industry, the unimolecular reaction that conforms to the principle of simplicity is to each chemical field of complicated life process from medication chemistry.Along with the widespread use of microwave in each branch field of chemistry, all need to obtain the kinetic parameter of the chemical reaction under the microwave radiation condition in the research and design work of each side such as the reactor design of microwave radiation chemical reaction, monitoring the process, process control and related science research.
The method of traditional monitoring chemical reaction course utilize concentration or with concentration dependent physical quantity: situations of change such as optical density, conductivity, electromotive force and specific inductive capacity are carried out.And under the microwave radiation, owing to reasons such as physical quantitys such as conductivity and optical density can not directly detect in microwave field, to the difficulty that the monitoring the process of chemical reaction under the microwave radiation brings, so relevant apparatus does not almost have, this point can confirm from looking into new result.
Look into newly through Science and Technology Information Inst., Sichuan Prov.: the domestic report (CN1597086, CN1146305) that microwave chemical reaction apparatus is only arranged, and this device only has the function of heating in chemical reaction, does not possess the effect that process detects and chemical kinetics parameters is obtained.External report document (1) is the form output of the result of heating with color graphics (JP52073741), is the detection to the variation of heat in the course of reaction.Can not carry out the chemical reaction course monitoring, more be not used in the microwave field.Foreign literature (2) is that chemical reaction becomes equal voltage by optical detection device under certain change color reference conditions (JP59200928), and is detected by the form with color.Document (2) does not relate to microwave radiation.To the new result of looking into of patent and non-patent literature, not seeing has the bibliographical information identical with this research through home and overseas.
Three, summary of the invention
The objective of the invention is to provide a kind of monitoring device of liquid phase chemical reaction under microwave radiation system colors variation at the deficiencies in the prior art.Be characterized in adopting an external circulating device, will have in the liquid-phase chemical reaction of change color a small amount of reactant liquid from the microwave radiation reaction cavity, extract out, outside reaction chamber, carry out process monitoring, to overcome the influence of microwave field to reactant with given pace.Utilize solution colour variation in the chemical reaction course, by photoelectric commutator color is exported with voltage form, to reach the purpose of monitoring chemical reaction process.
The present invention is realized by following technical measures:
The monitoring device that the liquid phase chemical reaction under microwave radiation system colors changes is connected with exhaust gas bubble device by peristaltic pump by the waveguide reaction chamber, the other end of exhaust gas bubble device is connected with photoelectric commutator, cloche in the exhaust gas bubble device is connected with vacuum pump, conducting, one end of photoelectric commutator is connected with exhaust gas bubble device, the other end is connected with the waveguide type reaction chamber, establish radiating circuit and receiving circuit in the photoelectric commutator, receiving circuit and display connect and compose integral body.
Glass tube is established at the exhaust gas bubble device two ends, and the glass tube two ends are connected with the porous resin film pipe of centre respectively, conducting, glass tube peripheral hardware cloche, and the perforate of cloche is connected with vacuum pump.
Establish glass tube in the photoelectric commutator, glass tube peripheral hardware passing through plate, passing through plate peripheral hardware radiating circuit plate and circuit board for receiving, receiving circuit is connected with display.
Establish radiating circuit and receiving circuit in the photoelectric commutator, radiating circuit is as transmitting terminal K
1When button is connected, pass through R
1, R
2, R
3Dividing potential drop, current limliting, light emitting diode D
1, D
2Luminous; Receiving circuit is as receiving end K
2When button is connected, pass through R
4Dividing potential drop, current limliting, photoresistance R
dReceive light emitting diode D
1, D
2The light that sends, sample resistance R
5Two ends output sampled signal, solution colour changes in glass tube, photoresistance R
5The light intensity that receives changes, and the electric signal of output also changes.According to the difference of different chemical resultant of reaction color, adopt the loose-leaf linkage to carry out corresponding diode and change.
The present invention has following advantage:
1. the response situation of liquid-phase chemical reaction in microwave field that change color is arranged obtained monitoring.
2. utilize the susceptibility of different wavelengths of light, be provided with the displaceable light-emitting system, to increase the sensitivity of change color to test macro.
3. utilize accuracy and the consistance of exhaust gas bubble device to the sampling of reaction solution color.
4. utilize photoelectric commutator to change color signal into electric signal output.
Four, description of drawings
Fig. 1 is the monitoring device structural representation of liquid phase chemical reaction under microwave radiation system colors
1. waveguide type reaction chamber 2. peristaltic pumps 3. exhaust gas bubble devices 4. vacuum pumps 5. photoelectric commutators 6. cloches 7. porous resin film pipes 8. glass tubes 9. are launched wiring boards 10. receiving lines plates 11. glass tube .12. passing through plate.
Fig. 2 is the exhaust gas bubble device structural representation
Fig. 3 is the photoelectric commutator structural representation
Fig. 4 is the radiating circuit schematic diagram
Fig. 5 is the receiving circuit schematic diagram
Five, embodiment
Below by EXPERIMENTAL EXAMPLE the present invention is specifically described; be necessary to be pointed out that at this present embodiment only is used for the present invention is further specified; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make some nonessential improvement and adjustment to the present invention according to the content of the invention described above.
Embodiment:
The monitoring device that the liquid phase chemical reaction under microwave radiation system colors changes is to be connected with exhaust gas bubble device 3 by peristaltic pump 2 by waveguide reaction chamber 1, the other end of exhaust gas bubble device is connected with photoelectric commutator 5, cloche 6 in the exhaust gas bubble device is connected with vacuum pump 4, conducting, one end of photoelectric commutator 5 is connected with exhaust gas bubble device 3, the other end is connected with waveguide type reaction chamber 1, establish radiating circuit and receiving circuit in the photoelectric commutator, receiving circuit and display connect and compose integral body.
Glass tube 11 is established at exhaust gas bubble device 3 two ends, and the glass tube two ends are connected with the porous resin film pipe 7 of centre respectively, conducting, glass tube peripheral hardware cloche 6, and the perforate of cloche is connected with vacuum pump 4.
Establish glass tube 8 in the photoelectric commutator 5, glass tube peripheral hardware passing through plate 12, passing through plate peripheral hardware radiating circuit plate 9 and circuit board for receiving 10, receiving circuit is connected with display.
As transmitting terminal K
1When button is connected, pass through R
1, R
2, R
3Dividing potential drop, current limliting, light emitting diode D
1, D
2Luminous, (D
1, D
2Adopt high brightness LED), receiving circuit is as receiving end button K
2During connection, receiving terminal circuit is started working, and passes through R
4Dividing potential drop, current limliting.Photoresistance R
dReceive light emitting diode D
1, D
2The light that sends, sample resistance R
5Output sampled signal in two ends is because photoresistance R
dResistance value change along with the variation of the light intensity of accepting, so when the change color of solution in the glass tube, photoresistance R
dThe light intensity of accepting changes sample resistance R
5The sampled signal of two ends output changes, thereby reaches the purpose of monitoring chemical reaction process; Because photoresistance is to the susceptibility and the selectivity of incident light wavelength, difference according to different chemical resultant of reaction color, transmitting terminal can correspondingly be changed light emitting diode so that sensitiveer sampling goes out corresponding sampled signal, and the loose-leaf linkage is adopted in the replacing of diode.
The present invention is achieved in that and utilizes peristaltic pump 2 can carry out flow speed control, and the reaction solution in the microwave field is extracted out from the system of waveguide reaction chamber 1, to avoid microwave difficulty that monitoring brings to chemical reactant and influence.Outside in the cyclic process, at first by exhaust gas bubble device 3, by oxygen and the carbon dioxide in the vacuum pump 4 eliminating flow, the photoelectric commutator 5 of flowing through again is converted to electric signal output with color signal, change color with monitoring microwave heating chemical reaction reaches the purpose to the chemical reaction course monitoring.The fluid of photoelectric monitor device of flowing through is got back in the waveguide reaction chamber again at last.
Claims (4)
1. the monitoring device that changes of a liquid phase chemical reaction under microwave radiation system colors, it is characterized in that this device is connected with exhaust gas bubble device (3) by peristaltic pump (2) by waveguide reaction chamber (1), the other end of exhaust gas bubble device is connected with photoelectric commutator (5), cloche (6) in the exhaust gas bubble device is connected with vacuum pump (4), conducting, one end of photoelectric commutator (5) is connected with exhaust gas bubble device (3), the other end is connected with waveguide type reaction chamber (1), establish radiating circuit and receiving circuit in the photoelectric commutator, receiving circuit and display connect and compose integral body.
2. the monitoring device that changes of liquid phase chemical reaction under microwave radiation system colors according to claim 1, it is characterized in that exhaust gas bubble device (3) two ends establish glass tube (11), the glass tube two ends are connected with the porous resin film pipe (7) of centre respectively, conducting, glass tube peripheral hardware cloche (6), the perforate of cloche is connected with vacuum pump (4).
3. the monitoring device that changes of liquid phase chemical reaction under microwave radiation system colors according to claim 1, it is characterized in that establishing in the photoelectric commutator (5) glass tube (8), glass tube peripheral hardware passing through plate (12), passing through plate peripheral hardware radiating circuit plate (9) and circuit board for receiving (10), circuit board for receiving is connected with display.
4. the monitoring device that changes of liquid phase chemical reaction under microwave radiation system colors according to claim 1 is characterized in that establishing radiating circuit and receiving circuit in the photoelectric commutator (5), and radiating circuit is as transmitting terminal K
1When button is connected, pass through R
1, R
2, R
3Dividing potential drop, current limliting, light emitting diode D
1, D
2Luminous; Receiving circuit is as receiving end K
2When button is connected, pass through R
4Dividing potential drop, current limliting, photoresistance R
dReceive light emitting diode D
1, D
2The light that sends, sample resistance R
5Two ends output sampled signal, solution colour changes in glass tube, photoresistance R
dThe light intensity that receives changes, and the electric signal of output also changes, and according to the difference of different chemical resultant of reaction color, the loose-leaf linkage is adopted in the replacing of diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100216242A CN100507516C (en) | 2005-09-07 | 2005-09-07 | Monitoring device for color changes of liquid phase chemical reaction under microwave radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100216242A CN100507516C (en) | 2005-09-07 | 2005-09-07 | Monitoring device for color changes of liquid phase chemical reaction under microwave radiation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1737534A true CN1737534A (en) | 2006-02-22 |
| CN100507516C CN100507516C (en) | 2009-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100216242A Expired - Fee Related CN100507516C (en) | 2005-09-07 | 2005-09-07 | Monitoring device for color changes of liquid phase chemical reaction under microwave radiation |
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| Country | Link |
|---|---|
| CN (1) | CN100507516C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105229450A (en) * | 2014-02-20 | 2016-01-06 | 罗斯蒙特分析公司 | There is the colorimetric analysis instrument of deaeration function |
| CN110954529A (en) * | 2019-11-04 | 2020-04-03 | 厦门市集美区乐安中学 | Iodine vapor fingerprint detection device |
| CN111239048A (en) * | 2020-03-21 | 2020-06-05 | 陇东学院 | Detection device for dynamic liquid color in chemical reaction process |
-
2005
- 2005-09-07 CN CNB2005100216242A patent/CN100507516C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105229450A (en) * | 2014-02-20 | 2016-01-06 | 罗斯蒙特分析公司 | There is the colorimetric analysis instrument of deaeration function |
| CN110954529A (en) * | 2019-11-04 | 2020-04-03 | 厦门市集美区乐安中学 | Iodine vapor fingerprint detection device |
| CN111239048A (en) * | 2020-03-21 | 2020-06-05 | 陇东学院 | Detection device for dynamic liquid color in chemical reaction process |
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| Publication number | Publication date |
|---|---|
| CN100507516C (en) | 2009-07-01 |
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Granted publication date: 20090701 Termination date: 20100907 |