CN2769882Y - Spiral-flow air chamber for spectrum analysis - Google Patents
Spiral-flow air chamber for spectrum analysis Download PDFInfo
- Publication number
- CN2769882Y CN2769882Y CN 200420120102 CN200420120102U CN2769882Y CN 2769882 Y CN2769882 Y CN 2769882Y CN 200420120102 CN200420120102 CN 200420120102 CN 200420120102 U CN200420120102 U CN 200420120102U CN 2769882 Y CN2769882 Y CN 2769882Y
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- CN
- China
- Prior art keywords
- atmosphere control
- air chamber
- air
- spiral
- spectral analysis
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- 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.)
- Expired - Lifetime
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The utility model discloses a spiral-flow air chamber for the spectrum analysis, which comprises an atmosphere control room body with an upper and a lower air holes, wherein the two corresponding sides of an atmosphere control room are respectively provided with air inlets which are tangentially filled with A r air. The non-air inlet side of the atmosphere control room is provided with a quartz window. The led-in A r air can form spiral-flow air inflow by adopting the spiral-flow air chamber, the air outflow is conducted from the periphery of an electrode, the defects of the existing atmosphere control box of a straight-way type are eliminated, and a high-efficiency atmosphere control effect is generated.
Description
Technical field
The utility model relates to a kind of spectral analysis swirl air chamber.
Background technology
In having now to rare infusibility and rare-earth spectrum analysis; usually the equipment that adopts as shown in Figure 3: produce electric arc, spark by spark discharge light supply apparatus 2 ' exciting electrode 3 '; measured matter in the exciting electrode cave 6 '; the plasma that produces; can take, add up, analyze it by spectroanalysis instrument 4 '; by Ar gas (can provide by Ar gas cylinder 5 ') is provided electric arc, spark and peripheral oxygen are isolated, in spark excitation, to be used as anti-oxidation atmosphere protection.Common way is to adopt through type atmosphere control box 1 ' about in the of, directly by feeding Ar gas flatly, another mouthful gives vent to anger (the arrow indication moves towards for gas circuit among the figure), and formation is to the encirclement of spark, but comparatively speaking, this through type atmosphere control box air consumption is big, and the per minute gas consumption is 20 liters/minute, and to condensed spark discharge prevention poor effect; And continuous working is poor, and every detection is restarted after once needing to shut down the measured matter of changing in the electrode cave.
Summary of the invention
The purpose of this utility model provides a kind of spectral analysis swirl air chamber, adopts this device and big condensed spark light source to unite use, can further improve sensitivity for analysis, reduces the overall background radiation that the big fire lace comes.
For achieving the above object, the utility model is taked following design proposal: a kind of spectral analysis swirl air chamber, comprise having the up and down atmosphere pulpit body of pore, respectively open an air intake opening in the two opposite sides of atmosphere pulpit, tangentially enter Ar gas 3-4 liter/minute.
Non-air inlet side in the atmosphere pulpit is established a quartz window.
The utility model has the advantages that: Ar gas control system effect is better, can further reduce the influence of main body, improves the launching efficiency of high excitation potential impurity.Reduce the overall background radiation that big condensed spark brings on the one hand, improve signal-to-noise sensitivity for analysis when, can reduce electrode temperature on the other hand, improve the degree and the spark stability of sputter vaporization.
Description of drawings
Fig. 1 is the utility model spectral analysis swirl air chamber structural representation
Fig. 2 is A-A cross-sectional view among Fig. 1 (the arrow indication is that gas circuit is moved towards among the figure)
Fig. 3 constitutes synoptic diagram for integral device system in the existing spectral analysis
Embodiment
As shown in Figure 1, the utility model spectral analysis comprises with swirl air chamber and has the up and down atmosphere control box body 1 of pore 101, respectively opens an air intake opening 21,22 in the two opposite sides of atmosphere control box.
Above-mentioned two air intake openings are the duct type gas port, and wherein the extensions angle theta of a duct type gas port and another duct type gas port is 12～18 °.
Establish a quartz window 3 at the non-air inlet side of atmosphere control box.This quartz window can be made into the buckle closure formula of ground, and during work, buckle closure 301 is buckled, and only plays the form effect, and during off working state, buckle closure 301 can be taken down, and with convenient the atmosphere control box is cleared up.
Adopt the utility model spectral analysis to carry out pure Ar gas control system with swirl air chamber, its principle of work and process are: use vortex air intake, give vent to anger by around the electrode, it is big to have eliminated in the past in the through type atmosphere control box flow velocity, air pressure is little and cause entering of surrounding air, thereby controlled atmospher is effective, and the article on plasma body has heat hoop Shu Xiaoying, thereby improves the temperature and the launching efficiency of plasma.Measure by experiment, allow the meeting in a certain angle of two duct type gas ports make atmosphere control better effects if.
Claims (4)
1, a kind of spectral analysis swirl air chamber comprises having the atmosphere control box body of pore up and down that it is characterized in that: an air intake opening is respectively opened in the two opposite sides at the atmosphere control box.
2, spectral analysis swirl air chamber according to claim 1 is characterized in that: two air intake openings are the duct type gas port, and wherein the extensions angle theta of a duct type gas port and another duct type gas port is 12～18 °.
3, spectral analysis swirl air chamber according to claim 1 is characterized in that: the non-air inlet side at the atmosphere control box is established a quartz window.
4, spectral analysis swirl air chamber according to claim 1 is characterized in that: described quartz window has the fastening lid of ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420120102 CN2769882Y (en) | 2004-12-23 | 2004-12-23 | Spiral-flow air chamber for spectrum analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420120102 CN2769882Y (en) | 2004-12-23 | 2004-12-23 | Spiral-flow air chamber for spectrum analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2769882Y true CN2769882Y (en) | 2006-04-05 |
Family
ID=36690959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420120102 Expired - Lifetime CN2769882Y (en) | 2004-12-23 | 2004-12-23 | Spiral-flow air chamber for spectrum analysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2769882Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012028484A1 (en) | 2010-09-03 | 2012-03-08 | Thermo Fisher Scientific (Ecublens) Sarl | Improved spark chamber for optical emission analysis |
-
2004
- 2004-12-23 CN CN 200420120102 patent/CN2769882Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012028484A1 (en) | 2010-09-03 | 2012-03-08 | Thermo Fisher Scientific (Ecublens) Sarl | Improved spark chamber for optical emission analysis |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141223 Granted publication date: 20060405 |