CN212228728U - In-situ reaction device based on Brookfield vacuum infrared spectrometer - Google Patents
In-situ reaction device based on Brookfield vacuum infrared spectrometer Download PDFInfo
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- CN212228728U CN212228728U CN202020982208.9U CN202020982208U CN212228728U CN 212228728 U CN212228728 U CN 212228728U CN 202020982208 U CN202020982208 U CN 202020982208U CN 212228728 U CN212228728 U CN 212228728U
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- binding post
- air inlet
- infrared spectrometer
- slide holder
- temperature measuring
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Abstract
The utility model discloses an in situ reaction device based on bruck vacuum infrared spectroscopy belongs to laboratory glassware technical field. The sample bin cover is provided with an air inlet, a heating assembly and a quartz window sheet; the air inlet is connected with an air inlet pipe, and an air inlet valve is arranged on the air inlet pipe; the heating component is connected with the slide holder through a resistance wire, and the lower plane of the sample bin cover is subjected to mirror surface treatment; the slide holder is fixedly connected with the temperature measuring tube, the middle part of the slide holder is provided with a light transmission hole, and one end of the light transmission hole is a counter bore. The device has reasonable structural design, integrates the functions of illumination, ventilation, heating and temperature measurement, occupies small space, has good sealing performance, can apply different atmospheres, can avoid the influence of external environment and improve the accuracy of a measuring result; heating efficiency is high, can reduce the size of slide holder, makes the infrared light unhindered when getting into the light trap to make the experimental data more accurate. The pressure range from vacuum to normal pressure which can be achieved is wide, different experimental requirements are met, and the range of system research is widened.
Description
Technical Field
The utility model belongs to the technical field of the laboratory glassware, concretely relates to normal position reaction unit based on bruck vacuum infrared spectroscopy.
Background
The infrared spectrometer is one of the most common physical property characterization techniques at present, has wide applicability to samples, can be applied to characterization of organic and inorganic compound samples, and is not limited by sample forms (gaseous, liquid and solid); the infrared spectrometer has simple structure, less test sample consumption and high repeatability, and thus has wide application in various fields.
In recent years, with the continuous development of scientific technology, the in-situ infrared technology gradually shows great advantages in characterizing the catalytic reaction process, and has become one of the most powerful detection means in the field of catalytic research. The in-situ infrared spectrum technology is mainly used for dynamically monitoring the reaction process of a sample, and is widely applied to the research of chemical bonds, surface species, adsorption state, adsorption strength, surface reaction and the like of a catalyst and the research of reaction kinetics.
At present, the existing in-situ reaction device mainly has the following problems: 1. the device is complex and occupies large space; 2. the measurement of infrared spectrum is greatly influenced by the environment (such as water, carbon dioxide and other gases); 3. the range of in-situ processing (such as vacuum to atmospheric environment) of the sample is small, and the systematic research on the sample is limited; 4, the heating efficiency of the slide holder is low, and the energy consumption is high; 5. the transverse size of the slide holder is large, and the infrared light irradiated on the sample piece is influenced.
Disclosure of Invention
In order to solve the defect that exists among the above-mentioned prior art, the utility model aims to provide an in situ reaction device based on bruck vacuum infrared spectroscopy, simple structure, reasonable in design, the device seal is good, does not receive the environmental impact, and heating efficiency is high, and the pressure value scope that can realize is wider.
The utility model discloses a realize through following technical scheme:
the utility model discloses an in-situ reaction device based on a Bruker vacuum infrared spectrometer, which comprises a sample bin cover, a slide holder and a reflector;
the sample bin cover is provided with an air inlet, a heating assembly and a quartz window sheet; the air inlet is connected with an air inlet pipe, and an air inlet valve is arranged on the air inlet pipe; the lower plane of the sample bin cover is a mirror surface processing surface;
the heating assembly comprises a connecting ring, a first binding post and a second binding post; the connecting ring is fixedly connected with the sample bin cover, the middle parts of the first binding post and the second binding post are fixedly connected with the connecting ring, one ends of the first binding post and the second binding post are connected with an external power supply through a conducting wire, and the other ends of the first binding post and the second binding post are connected with the slide holder through a resistance wire; the connecting ring is provided with a temperature measuring hole which is connected with a temperature measuring pipe, and the temperature measuring pipe is connected with the slide holder; a light hole is formed in the middle of the slide holder, and a counter bore is formed in one end of the light hole;
when the device is used, the sample bin cover covers the sample bin of the Bruker vacuum infrared spectrometer, the slide holder is positioned in the sample bin, the temperature measuring device is placed in the temperature measuring tube, the sample sheet is placed in the counter bore of the light hole, the incident direction of the reflector is opposite to the quartz window sheet, and the reflecting direction of the reflector is opposite to the counter bore of the light hole.
Preferably, the model of the Brookfield vacuum infrared spectrometer is VERTEX-70V.
Preferably, the slide holder is provided with a blind hole, the blind hole is arranged close to the counter bore end of the light transmission hole, and the blind hole is communicated with the temperature measuring tube.
Preferably, the temperature measuring tube is a stainless steel tube.
Preferably, the roughness of the lower plane of the sample bin cover is Ra0.2-6.3.
Preferably, the angle of the mirror is adjustable.
Preferably, an insulating sleeve is arranged between the first binding post, the second binding post and the connecting ring.
Further preferably, the insulating sleeve is a ceramic tube.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses an in-situ reaction device based on a Bruker vacuum infrared spectrometer, which has simple structure and reasonable design, integrates the functions of illumination, ventilation, heating and temperature measurement, and occupies small space; the heating and cooling rate is high, the lower plane of the sample bin cover is subjected to mirror surface treatment, the sealing performance is good, different atmospheres can be applied through the air inlet pipe, meanwhile, the influence of the external environment can be avoided, and the accuracy of the measuring result is improved; the pressure range from vacuum to normal pressure which can be achieved is wide, different experimental requirements are met, and the range of system research is widened. Heating element directly heats the slide holder through the resistance wire, and heating efficiency is high, can reduce the size of slide holder, makes the infrared light unhindered when getting into the light trap to make the experimental data more accurate.
Furthermore, the blind hole communicated with the temperature measuring tube is formed in the slide holder and is close to the counter bore end of the light transmission hole, so that the temperature near the sample piece can be measured more accurately, and the accuracy of measured data is finally improved.
Furthermore, the temperature measuring tube is made of a stainless steel tube, so that the heat conductivity is good, and the service life is long.
Further, the roughness of plane is Ra0.2 ~ 6.3 under the sample storehouse lid, can realize sealed better, does not receive external environment influence to improve the accuracy of experimental result.
Furthermore, the angle of the reflector is adjustable, so that the illumination applied to the sample sheet can be adjusted conveniently.
Furthermore, insulating sleeves are arranged among the first binding post, the second binding post and the connecting ring, so that the sample bin cover is not electrified when the sample bin cover is used, and the safety is improved.
Drawings
Fig. 1 is a schematic front view of the overall structure of the in-situ reaction device based on the brook vacuum infrared spectrometer of the present invention;
FIG. 2 is a schematic side view of the overall structure of the in-situ reaction apparatus based on the Brookfield vacuum infrared spectrometer of the present invention;
fig. 3 is a schematic plan view of the overall structure of the in-situ reaction device based on the bruker vacuum infrared spectrometer of the present invention;
fig. 4 is a working principle diagram of the in-situ reaction device based on the bruker vacuum infrared spectrometer of the present invention.
In the figure: the device comprises a sample bin cover 1, an air inlet 2, a heating assembly 3, a connecting ring 3-1, a first binding post 3-2, a second binding post 3-3, a temperature measuring hole 4, a blind hole 5, a light hole 6, an air inlet pipe 7, an air inlet valve 8, a temperature measuring pipe 9, a slide holder 10, a quartz window 11, a resistance wire 12 and a reflector 13.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and embodiments:
as shown in fig. 1, fig. 2 and fig. 3, the in-situ reaction device based on the bruker vacuum infrared spectrometer of the present invention comprises a sample bin cover 1, a slide stage 10 and a reflective mirror 13;
the sample bin cover 1 is provided with an air inlet 2, a heating component 3 and a quartz window sheet 11; the air inlet 2 is connected with an air inlet pipe 7, and an air inlet valve 8 is arranged on the air inlet pipe 7; the lower plane of the sample bin cover 1 is a mirror-processed surface, and the roughness is generally Ra0.2-6.3.
The heating assembly 3 comprises a connecting ring 3-1, a first binding post 3-2 and a second binding post 3-3; the connecting ring 3-1 is fixedly connected with the sample bin cover 1, the middle parts of the first binding post 3-2 and the second binding post 3-3 are fixedly connected with the connecting ring 3-1, one end of the first binding post 3-2 and one end of the second binding post 3-3 are connected with an external power supply through conducting wires, and the other end of the first binding post 3-2 and the other end of the second binding post are connected with the slide holder 10 through a resistance wire 12; preferably, an insulating sleeve is arranged between the first binding post 3-2, the second binding post 3-3 and the connecting ring 3-1, and the insulating sleeve can be made of ceramic materials.
A temperature measuring hole 4 is formed in the connecting ring 3-1, the temperature measuring hole 4 is connected with a temperature measuring tube 9, the temperature measuring tube 9 is connected with the slide holder 10, preferably, the temperature measuring tube 9 is made of stainless steel, a welding line at a joint is compact, and the sealing performance is guaranteed; the middle part of the slide holder 10 is provided with a light hole 6, and one end of the light hole 6 is a counter bore. Preferably, a blind hole 5 is arranged at the counter bore end close to the light hole 6, and the blind hole 5 is communicated with the temperature measuring tube 9.
When the device is used, the sample bin cover 1 covers a sample bin of the Bruker vacuum infrared spectrometer, and the smooth lower plane of the sample bin cover 1 can be in close contact with a sealing strip of a frame of the sample bin, so that a good sealing effect is achieved; the slide holder 10 is positioned in the sample bin, the resistance wire 12 surrounds the outside of the slide holder 10, the temperature measuring device is arranged in the temperature measuring tube 9, the sample is arranged in the counter bore of the light hole 6, the incident direction of the reflector 13 is opposite to the quartz window piece 11, the reflecting direction of the reflector 13 is opposite to the counter bore of the light hole 6, and preferably, the angle of the reflector 13 is adjustable.
It should be noted that the utility model discloses an in situ reaction device mainly is applicable to the model and is VERTEX-70V's Bruke vacuum infrared spectroscopy appearance, and the sample storehouse frame of the instrument of this model is provided with the round sealing strip, and sample cang gai 1 can closely laminate with the sealing strip through the lower plane of mirror surface treatment, plays sealed effect. As can be appreciated by those skilled in the art, other models having similar structures can also use the in-situ reaction device based on the Bruker vacuum infrared spectrometer of the present invention.
The utility model discloses an in situ reaction unit based on bruck vacuum infrared spectroscopy at the during operation:
as shown in fig. 4, the pressed sample piece is placed in a counter bore of a light hole 6, a power switch connected with a heating component 3 is turned on, a temperature measuring device is placed in a temperature measuring tube 9, then a sample bin cover 1 is covered on a sample bin of a brook vacuum infrared spectrometer, an air inlet valve 8 is closed, and the brook vacuum infrared spectrometer is turned on to vacuumize the sample bin; opening an air inlet valve 8 to introduce target gas into the sample bin, enabling the sample sheet to adsorb the target gas, opening an external light source after a preset time, and enabling the external light source to irradiate a reflector 13 through a quartz window sheet 11 and then reflect the reflector onto the sample sheet; the heating assembly 3 is opened, and meanwhile, the temperature measuring device monitors the temperature; infrared light of the Bruk vacuum infrared spectrometer is irradiated on the sample piece through the light hole 6, and infrared spectrum test is carried out on the sample.
It should be noted that the embodiments described in the examples are only some of the embodiments of the present invention, and it is obvious to those skilled in the art that a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should be regarded as the protection scope of the present invention.
Claims (8)
1. An in-situ reaction device based on a Bruker vacuum infrared spectrometer is characterized by comprising a sample bin cover (1), a slide holder (10) and a reflector (13);
the sample bin cover (1) is provided with an air inlet (2), a heating component (3) and a quartz window sheet (11); the air inlet (2) is connected with an air inlet pipe (7), and an air inlet valve (8) is arranged on the air inlet pipe (7); the lower plane of the sample bin cover (1) is a mirror surface processing surface;
the heating component (3) comprises a connecting ring (3-1), a first binding post (3-2) and a second binding post (3-3); the connecting ring (3-1) is fixedly connected with the sample bin cover (1), the middle parts of the first binding post (3-2) and the second binding post (3-3) are fixedly connected with the connecting ring (3-1), one ends of the first binding post (3-2) and the second binding post (3-3) are connected with an external power supply through a lead, and the other ends of the first binding post (3-2) and the second binding post (3-3) are connected with the slide holder (10) through a resistance wire (12); a temperature measuring hole (4) is formed in the connecting ring (3-1), the temperature measuring hole (4) is connected with a temperature measuring pipe (9), and the temperature measuring pipe (9) is connected with the slide holder (10); a light hole (6) is formed in the middle of the slide holder (10), and a counter bore is formed in one end of the light hole (6);
when the device is used, the sample bin cover (1) covers a sample bin of a Bruker vacuum infrared spectrometer, the slide holder (10) is positioned in the sample bin, the temperature measuring device is placed in the temperature measuring tube (9), the sample sheet is placed in a counter bore of the light transmitting hole (6), the incident direction of the reflector (13) is opposite to the quartz window sheet (11), and the reflecting direction of the reflector (13) is opposite to the counter bore of the light transmitting hole (6).
2. The in-situ reaction device based on the Brookfield vacuum infrared spectrometer of claim 1, wherein the model of the Brookfield vacuum infrared spectrometer is VERTEX-70V.
3. The in-situ reaction device based on the Brookfield vacuum infrared spectrometer as claimed in claim 1, wherein the slide holder (10) is provided with a blind hole (5), the blind hole (5) is arranged close to a counter bore end of the light transmission hole (6), and the blind hole (5) is communicated with the temperature measuring tube (9).
4. The in-situ reaction device based on the Brookfield vacuum infrared spectrometer of claim 1, wherein the temperature measuring tube (9) is a stainless steel tube.
5. The in-situ reaction device based on the Bruker vacuum infrared spectrometer of claim 1, characterized in that the roughness of the lower plane of the sample bin cover (1) is Ra0.2-6.3.
6. The in-situ reaction device based on the Brookfield vacuum infrared spectrometer of claim 1, wherein the angle of the reflector (13) is adjustable.
7. The in-situ reaction device based on the Bruker vacuum infrared spectrometer of claim 1, characterized in that an insulating sleeve is arranged between the first binding post (3-2), the second binding post (3-3) and the connecting ring (3-1).
8. The in-situ reaction device based on the Brookfield vacuum infrared spectrometer of claim 7, wherein the insulating sleeve is a ceramic tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020982208.9U CN212228728U (en) | 2020-06-02 | 2020-06-02 | In-situ reaction device based on Brookfield vacuum infrared spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020982208.9U CN212228728U (en) | 2020-06-02 | 2020-06-02 | In-situ reaction device based on Brookfield vacuum infrared spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212228728U true CN212228728U (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020982208.9U Expired - Fee Related CN212228728U (en) | 2020-06-02 | 2020-06-02 | In-situ reaction device based on Brookfield vacuum infrared spectrometer |
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| Country | Link |
|---|---|
| CN (1) | CN212228728U (en) |
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2020
- 2020-06-02 CN CN202020982208.9U patent/CN212228728U/en not_active Expired - Fee Related
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Granted publication date: 20201225 |