CN104181105A - Sample tank used for observation of liquid oxygen fluorescence spectrum - Google Patents
Sample tank used for observation of liquid oxygen fluorescence spectrum Download PDFInfo
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- CN104181105A CN104181105A CN201310195953.3A CN201310195953A CN104181105A CN 104181105 A CN104181105 A CN 104181105A CN 201310195953 A CN201310195953 A CN 201310195953A CN 104181105 A CN104181105 A CN 104181105A
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- liquid nitrogen
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Abstract
The invention discloses a sample tank used for observation of a liquid oxygen fluorescence spectrum, and the sample tank comprises a liquid oxygen tank, a liquid nitrogen tank outer container and a liquid nitrogen tank inner container; the liquid oxygen tank and a liquid nitrogen tank are prepared from pyrex glass by an integrated melting process. The liquid nitrogen tank is a thermal insulation device with the inner layer and the outer layer. A vacuum interlayer is arranged between the inner layer and the outer layer. Two ends of the liquid oxygen tank and liquid nitrogen tank are laser through windows prepared from pyrex glass, and the centers of the side walls of the liquid oxygen tank and liquid nitrogen tank are welded with observation windows used to collect fluorescence by the integrated melting process. The sample tank has the advantages that the sample tank solves the problem of frosting on the observation windows, caused by larger temperature difference between the liquid nitrogen tank and the outside, and simultaneously solves the problem of rapid evaporation of liquid oxygen at room temperature.
Description
Technical field
The present invention relates to laser technology field, especially a kind of for observing the sample cell of liquid oxygen fluorescence spectrum.
Background technology
The long laser of High power CW is being widely used aspect civilian and national defence at present, for example hydrogen fluoride laser, oxygen-iodine laser, carbon dioxide laser etc.But being applied in to a great extent of these laser instruments limited by their large-scale volume, in addition also have some factors to have influence on the application of above-mentioned superpower laser, for example use adventurous chemicals, jeopardize operating personnel's safety, working specification is complicated, setup time of Laser output is long etc., and liquid oxygen is a kind of very promising efficient, environment-friendly novel high energy continuous laser actuating medium, adopts liquid oxygen as the laser instrument of actuating medium, to be expected to make up these defects of above-mentioned laser instrument.
Summary of the invention
Adopt liquid oxygen to produce high energy continuous laser as laser medium, first will remove to study liquid oxygen fluorescence spectrum, the V-T relaxation of the relevant energy level of liquid oxygen laser is conducted a research, the test to liquid oxygen laser instrument, design and functions prediction provides theory and test basis.The present invention is a kind of for observing the sample cell of liquid oxygen fluorescence spectrum, to study the absorption spectrum of liquid oxygen laser levels and the V-T relaxation of upper energy level.
Technical scheme of the present invention is: a kind of for observing the sample cell of liquid oxygen fluorescence spectrum, comprise liquid oxygen pond, the outer courage of liquid nitrogen bath, liquid nitrogen bath inner bag, described liquid oxygen pond comprises that the transparent laser of oxygen ascending pipe and two ends, liquid oxygen pond passes through window, described liquid nitrogen bath is provided with inner bag, outer courage, between inner bag and outer courage, it is vacuum interlayer, liquid nitrogen is stored in inner bag, and inner bag and outer courage two ends are transparent laser and pass through window.
For observing a sample cell for liquid oxygen fluorescence spectrum, comprise the outer courage of closed container liquid oxygen pond, liquid nitrogen bath and the liquid nitrogen bath inner bag of hollow; Liquid oxygen pond is placed in the inside of liquid nitrogen bath inner bag, and liquid nitrogen bath inner bag is placed in the inside of the outer courage of liquid nitrogen bath;
Liquid oxygen pond is provided with the oxygen ascending pipe being connected with extraneous oxygen source, two symmetrically arranged transparent laser pass through window;
Liquid nitrogen bath inner bag is provided with liquid nitrogen ascending pipe, the nitrogen waste pipe being connected with liquid nitrogen source and corresponding to the position by window, is symmetrically arranged with two transparent inner bag laser on liquid nitrogen bath inner bag and passes through window;
The outer courage of liquid nitrogen bath is provided with a vacuum orifice, and vacuum orifice is connected with vacuum pump through pipeline, is symmetrically arranged with two transparent outer courage laser passes through window outside liquid nitrogen bath on courage corresponding to the position by window;
Sidewall in liquid nitrogen bath inner bag is provided with transparent view window, is provided with the inspection section of the hollow of both ends open in observation window and liquid nitrogen bath, and one end of inspection section is connected with liquid oxygen pond, and other end edge is connected to the surface of view window; Outside liquid nitrogen bath, on the side wall surface of courage, the position corresponding to view window is provided with transparent outer courage observation window.
The edge of the other end of inspection section and view window airtight connection of surface.
Separately, the internal face of the outer courage of liquid nitrogen bath inner bladder outer wall face and liquid nitrogen bath separately for the internal face of liquid oxygen pond outside wall surface and liquid nitrogen bath inner bag; In liquid nitrogen bath inner bag, be filled into liquid nitrogen, the outer courage of liquid nitrogen bath vacuumizes, and outside liquid nitrogen bath inner bladder outer wall face and liquid nitrogen bath, between the internal face of courage, forms vacuum interlayer.
Inspection section and liquid nitrogen bath sidewall, inspection section and view window, liquid nitrogen bath inner bag) sidewall and view window adopt after the technique welding of melting one for collecting fluorescence.
Described liquid oxygen pond, liquid nitrogen bath inner bag material are Pyrex glass and adopt the technique of melting one to make, and have effectively solved the not good problem of sealing effectiveness at low temperatures.
Described vacuum interlayer has effectively been avoided because the outer courage of liquid nitrogen bath two ends view window internal-external temperature difference is compared with going out the problem of frosting at view window greatly.
Liquid oxygen pond is placed in liquid nitrogen bath inner bag, oxygen is injected in liquid oxygen pond by oxygen ascending pipe, by liquid nitrogen, oxygen liquid is changed into liquid oxygen, the volatilization of liquid oxygen has effectively been avoided in the danger that while having avoided direct perfusion liquid oxygen, liquid oxygen gasification causes simultaneously at liquid nitrogen bath temperature.
The present invention can also adopt following technical measures:
Liquid oxygen pond and liquid nitrogen bath sidewall center adopt the technique welding view window of melting one to be used for collecting fluorescence.
Advantage of the present invention is:
1. the sample cell of the present invention's design has been avoided the problem in the frosting of view window place causing more greatly because of liquid nitrogen bath internal-external temperature difference, guarantees to detect smoothly the fluorescence spectrum of liquid oxygen.
2. liquid oxygen of the present invention pond and liquid nitrogen bath sidewall center adopt the technique welding view window of melting one to be used for collecting fluorescence, have effectively reduced the fluorescence loss causing because of scattering.
3. the sample cell of the present invention's design is that liquid oxygen pond is placed in liquid nitrogen bath inner bag, the liquid nitrogen being equipped with in liquid nitrogen bath inner bag is as the medium of cooling liquid oxygen, effectively slowed down the rate of volatilization of liquid oxygen, liquid oxygen is by oxygen being injected to liquid oxygen pond, by liquid nitrogen, oxygen liquid being changed into liquid oxygen again makes, avoid directly pouring into the danger that liquid oxygen brings, guaranteed the security of experiment.
Accompanying drawing explanation
Fig. 1 is the outer courage of liquid oxygen pond, liquid nitrogen bath and liquid nitrogen bath inner bag involved in the present invention;
In figure: the pipeline of 1-for vacuumizing, 2-liquid nitrogen ascending pipe, the outer courage of 3-liquid nitrogen bath, 4-oxygen ascending pipe, 5-nitrogen waste pipe, the transparent laser in 6-liquid nitrogen bath two ends passes through window, the transparent laser in the outer courage of 7-liquid nitrogen bath two ends passes through window, 8-vacuum interlayer, and the transparent laser in two ends, 9-liquid oxygen pond passes through window, 10-liquid nitrogen bath inner bag, 11-liquid oxygen pond.
Fig. 2 is the side projection figure of the outer courage of liquid oxygen pond involved in the present invention, liquid nitrogen bath and liquid nitrogen bath inner bag;
In figure: the view window of 12-liquid oxygen pond and liquid nitrogen bath side wall of inner center, the view window of the outer courage sidewall of 13-liquid nitrogen bath center.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: as shown in Figure 1 and Figure 2, the invention discloses a kind of for observing the sample cell of liquid oxygen fluorescence spectrum, comprise liquid oxygen pond 11, the outer courage 3 of liquid nitrogen bath, liquid nitrogen bath inner bag 10, described liquid oxygen pond 5 is provided with the oxygen ascending pipe 4 and two, the two ends that are connected with extraneous oxygen source and is symmetrical arranged transparent laser by window 6, liquid oxygen pond 11 is placed in liquid nitrogen bath inner bag 10, and its position with respect to the outer courage of liquid nitrogen bath is fixing by oxygen ascending pipe 4; Described liquid nitrogen bath inner bag 10 comprises the liquid nitrogen ascending pipe 2 being connected with liquid nitrogen source, nitrogen waste pipe 5, and corresponding to the position by window 9, being symmetrically arranged with two transparent inner bag laser by window 6 on liquid nitrogen bath inner bag, its position with respect to the outer courage of liquid nitrogen bath is fixing by liquid nitrogen ascending pipe 2 and nitrogen waste pipe 5; The outer courage 3 of described liquid nitrogen bath comprises a vacuum orifice, and vacuum orifice is connected with vacuum pump through pipeline 1, outside liquid nitrogen bath, on courage, corresponding to the position by window 9, is symmetrically arranged with two transparent outer courage laser by window 7; Sidewall in liquid nitrogen bath inner bag 10 is provided with transparent view window 12, is provided with the inspection section of the hollow of both ends open in observation window 12 and liquid nitrogen bath 11, and one end of inspection section is connected with liquid oxygen pond 11, and other end edge is connected to the surface of view window 12; Outside liquid nitrogen bath, on the side wall surface of courage 10, the position corresponding to view window 12 is provided with transparent outer courage observation window 13.
Claims (7)
1. for observing a sample cell for liquid oxygen fluorescence spectrum, it is characterized in that:
The outer courage (3) of closed container liquid oxygen pond (11), liquid nitrogen bath and the liquid nitrogen bath inner bag (10) that comprise hollow; Liquid oxygen pond (11) is placed in the inside of liquid nitrogen bath inner bag (10), and liquid nitrogen bath inner bag (10) is placed in the inside of the outer courage (3) of liquid nitrogen bath;
Liquid oxygen pond (11) comprises that the oxygen ascending pipe (4) being connected with extraneous oxygen source, two symmetrically arranged transparent laser are by window (9);
Liquid nitrogen bath inner bag (10) comprises liquid nitrogen ascending pipe (2), the nitrogen waste pipe (5) being connected with liquid nitrogen source and corresponding to the position by window (9), be symmetrically arranged with two transparent inner bag laser by window (6) on liquid nitrogen bath inner bag;
The outer courage (3) of liquid nitrogen bath comprises a vacuum orifice, and vacuum orifice is connected with vacuum pump through pipeline (1), outside liquid nitrogen bath, on courage, corresponding to the position by window (9), is symmetrically arranged with two transparent outer courage laser by window (7);
Sidewall in liquid nitrogen bath inner bag (10) is provided with transparent view window (12), in observation window (12) and liquid nitrogen bath (11), be provided with the inspection section of the hollow of both ends open, one end of inspection section is connected with liquid oxygen pond (11), and other end edge is connected to the surface of view window (12); Position corresponding to view window (12) on the side wall surface of courage outside liquid nitrogen bath (10) is provided with transparent outer courage observation window (13).
2. sample cell according to claim 1, is characterized in that: the edge of the other end of inspection section and surperficial airtight connection of view window (12).
3. sample cell according to claim 1, is characterized in that: separately, the internal face of the outer courage (3) of liquid nitrogen bath inner bag (10) outside wall surface and liquid nitrogen bath separately for the internal face of liquid oxygen pond (11) outside wall surface and liquid nitrogen bath inner bag (10); Liquid nitrogen bath inner bag is filled into liquid nitrogen in (10), and the outer courage (3) of liquid nitrogen bath vacuumizes, and forms vacuum interlayer (8) outside liquid nitrogen bath inner bag (10) outside wall surface and liquid nitrogen bath between the internal face of courage (3).
4. sample cell according to claim 1, is characterized in that: inspection section and liquid nitrogen bath sidewall, inspection section and view window (12), liquid nitrogen bath inner bag (10) sidewall and view window (12) adopt after the technique welding of melting one for collecting fluorescence.
5. according to the sample cell described in claim 1 or 4, it is characterized in that: described liquid oxygen pond (11), liquid nitrogen bath inner bag (10) material are Pyrex glass and adopt the technique of melting one to make, and have effectively solved the not good problem of sealing effectiveness at low temperatures.
6. sample cell according to claim 3, is characterized in that: described vacuum interlayer (8) has effectively been avoided because outer courage two ends view windows (7) internal-external temperature difference of liquid nitrogen bath is compared with going out the problem of frosting at view window greatly.
7. sample cell according to claim 1, it is characterized in that: liquid oxygen pond (11) are placed in liquid nitrogen bath inner bag (10), oxygen is injected in liquid oxygen pond (11) by oxygen ascending pipe (4), by liquid nitrogen, oxygen liquid is changed into liquid oxygen, the volatilization of liquid oxygen has effectively been avoided in the danger that while having avoided direct perfusion liquid oxygen, liquid oxygen gasification causes simultaneously at liquid nitrogen bath temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310195953.3A CN104181105B (en) | 2013-05-23 | 2013-05-23 | A kind of sample cell for observing liquid oxygen fluorescence spectrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310195953.3A CN104181105B (en) | 2013-05-23 | 2013-05-23 | A kind of sample cell for observing liquid oxygen fluorescence spectrum |
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| CN104181105A true CN104181105A (en) | 2014-12-03 |
| CN104181105B CN104181105B (en) | 2016-12-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106093043A (en) * | 2016-06-23 | 2016-11-09 | 北方工业大学 | Visual test device for low-temperature liquefied gas |
| CN107561034A (en) * | 2016-06-30 | 2018-01-09 | 株式会社堀场制作所 | Gas concentration measuring apparatus |
| CN108760674A (en) * | 2018-06-04 | 2018-11-06 | 大连理工大学 | A kind of terahertz time-domain spectroscopy detection device for detecting biological neural sample |
| CN109030519A (en) * | 2018-06-15 | 2018-12-18 | 王阳 | A kind of electron cryo-microscopy can operational observations recording device |
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| CN108760674A (en) * | 2018-06-04 | 2018-11-06 | 大连理工大学 | A kind of terahertz time-domain spectroscopy detection device for detecting biological neural sample |
| CN108760674B (en) * | 2018-06-04 | 2020-10-13 | 大连理工大学 | Terahertz time-domain spectrum detection device for detecting biological nerve sample |
| CN109030519A (en) * | 2018-06-15 | 2018-12-18 | 王阳 | A kind of electron cryo-microscopy can operational observations recording device |
| CN109030519B (en) * | 2018-06-15 | 2020-11-17 | 义乌市研创工业设计有限公司 | Operable observation recording device for cryoendoscope |
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| CN104181105B (en) | 2016-12-28 |
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