CN202166589U - Omni-sealing sample window of dry powder laser particle sizer - Google Patents
Omni-sealing sample window of dry powder laser particle sizer Download PDFInfo
- Publication number
- CN202166589U CN202166589U CN2011202676468U CN201120267646U CN202166589U CN 202166589 U CN202166589 U CN 202166589U CN 2011202676468 U CN2011202676468 U CN 2011202676468U CN 201120267646 U CN201120267646 U CN 201120267646U CN 202166589 U CN202166589 U CN 202166589U
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- sample window
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Abstract
The utility model provides an omni-sealing sample window of a dry powder laser particle sizer, belonging to the field of the dry powder laser particle sizer. The omni-sealing sample window of the dry powder laser particle sizer structurally comprises a sample window bar, a bracket and a sample window body, wherein the sample window body is arranged below the bracket, the sample window bar is arranged below the bracket, the sample window body is in a hollow rectangle, transparent glass window components are systematically arranged on two opposite long side surfaces of the hollow rectangle, an air current outlet of the sample window bar is arranged in the sample window body and the air flowing direction is coincided with the sample window body, a secondary air chamber and a third air chamber which are communicated with the sample window body are sequentially arranged at the outer side of the sample window bar from inside to outside to seal an upper end part of the sample window body, and a lower end part of the sample window body is connected with a vacuum cleaner by a connector. By adopting the utility model, a dry powder particle size test is performed under an omni-sealing state, no particle leakage, no window wear and no interference of scattered light are ensured, thereby having particularly important significance to particle size analysis of inflammable and combustible particles needed to be protected by inert gases and on-line particle size analysis.
Description
(1) technical field
The utility model relates to a kind of sreen analysis instrument, the hermetically sealed sample window of specifically a kind of dry method laser particle analyzer.
(2) background technology
The dry method laser particle analyzer refers to use the laser particle analyzer device of gas as the particle dispersion medium.At present the measurement window of dry method laser particle analyzer is communicated with atmosphere, when Dual-Phrase Distribution of Gas olid is taken particle and accepted laser radiation through window at a high speed, has the effusion of part particle, the pollution optical system.Do not take safeguard measure, the high-speed motion particle glass that will immediately wear and tear if make optical glass sealing, influence the measurement of laser particle.For the inflammable and explosive particle that is dispersed in the inert gas, in test, overflow to mix and to cause serious consequence with atmosphere from window.
(3) summary of the invention
The technical assignment of the utility model is the deficiency to prior art; A kind of measurement that had both guaranteed laser is provided; Particle has guaranteed to measure the hermetically sealed sample window of dry method laser particle analyzer of safety again to pollution, the wearing and tearing of optical system when preventing the drying measure grain graininess.
The utility model solves the technical scheme that its technical matters adopted:
The hermetically sealed sample window of dry method laser particle analyzer; Comprise sample window core, support and sample forms; The sample forms are arranged on the below of support, and the sample window core is arranged on the top of support, and above-mentioned sample forms are hollow, rectangular; Its two relative long side surfaces are symmetrically arranged with clear glass window assembly; The air stream outlet of sample window core is positioned at the sample forms and airflow direction overlaps with the center of sample forms, thereby is disposed with the upper end sealing with the sample forms of the secondary air chamber that communicates with the sample forms and three air chambers from inside to outside in the outside of sample window core, and the bottom of sample forms connects Hoover through joint.
The air stream outlet of above-mentioned secondary air chamber is a ring exit.
Connection place of above-mentioned three air chambers and sample forms also is provided with equal air bound plate.
Above-mentioned joint becomes joint for circumference.
The height of above-mentioned sample forms should be greater than 3 times of its width.
Above-mentioned clear glass window assembly comprises gasket seal, window frame, optical glass, and optical glass is arranged on the window frame, and window frame is arranged on the mounting hole of sample forms two long side surfaces through gasket seal.
The hermetically sealed sample window of dry method laser particle analyzer of the utility model compared with prior art, the beneficial effect that is produced is:
1) window glass keeps long-term clean, and the scattered light of incident laser and particle is interference-free;
2) particle can not overflowed outside window in test, can not pollute optical system;
3) Dual-Phrase Distribution of Gas olid and the atmospheric isolation surveyed ensure the safety of inflammable and explosive particle test.
(4) description of drawings
Accompanying drawing 1 is looked cross-sectional view for the master of the utility model.
Accompanying drawing 2 is the left TV structure synoptic diagram of Fig. 1.
Among the figure, 1, the sample window core, 2, the secondary air chamber, 3, three air chamber glands, 4, three air chambers, 5, support, 6, the sample forms, 7, joint, 8, gasket seal, 9, window frame, 10, optical glass, 11, equal air bound plates, 12, O type circle.
(5) embodiment
Below in conjunction with explanation at length below the hermetically sealed sample window work of the dry method laser particle analyzer of 1 pair of the utility model of accompanying drawing.
Shown in accompanying drawing 1; The hermetically sealed sample window of dry method laser particle analyzer of the utility model; Its structure comprises sample window core 1, secondary air chamber 2, three air chambers 4, support 5, sample forms 6, joint 7, optical glass 10 etc.; Above-mentioned sample window core 1, secondary air chamber 2 and three air chambers 4 are successively set on the top of support 5 from inside to outside and all communicate with the sample forms 6 that are arranged on support 5 belows and with the upper end sealing of sample forms 6, above-mentioned sample forms 6 are hollow, rectangular, the bright and clean no projection of inwall; Its height should be greater than 3 times of its width; Its two relative long side surfaces are symmetrically arranged with clear glass window assembly, and the air stream outlet of sample window core 1 is positioned at sample forms 6 and airflow direction overlaps with the center of sample forms 6, and the bottom of sample forms 6 becomes joint 7 through circumference and connects Hoover.
The air stream outlet of above-mentioned secondary air chamber 2 is a ring exit, and the ring exit gap of secondary air chamber 2 is greater than 1 millimeter.
Connection place of above-mentioned three air chambers 4 and sample forms 6 also is provided with equal air bound plate 11.
Above-mentioned clear glass window assembly comprises gasket seal 8, window frame 9, optical glass 10, and optical glass 10 is arranged on the window frame 9, and window frame 9 is arranged on the mounting hole of 6 liang of long side surfaces of sample forms through gasket seal 8.
The utility model adopts optical quartz glass as logical light window, adopts 3 strands of air-flows to get into sample forms 6 with different speed, unlikely pollution of protection materials flow and wearing and tearing window.The Dual-Phrase Distribution of Gas olid that contains particle gets into sample forms 6 through 1 ejection of sample window core; Secondary gas and three gas are the clean gas from source of the gas; Get into sample forms 6 through secondary air chamber 2, three air chambers 4 with different speed respectively, pollute with the optical glass 10 unlikely particles of protection window by high-speed motion.The circumference of the forms below that the dusty gas of using passes through becomes joint 7 and gets into the Hoover recovery.
The flow velocity that should adjust secondary gas and three gas during use is so that the protection best results.
Its processing and fabricating of the hermetically sealed sample window of dry method laser particle analyzer of the utility model is simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (6)
1. the hermetically sealed sample window of dry method laser particle analyzer; Comprise sample window core (1), support (5) and sample forms (6); Sample forms (6) are arranged on the below of support (5); Sample window core (1) is arranged on the top of support (5), it is characterized in that, above-mentioned sample forms (6) are hollow, rectangular; Its two relative long side surfaces are symmetrically arranged with clear glass window assembly; The air stream outlet of sample window core (1) is positioned at sample forms (6) and airflow direction overlaps with the center of sample forms (6), be disposed with the secondary air chamber (2) that communicates with sample forms (6) and three air chambers (4) from inside to outside in the outside of sample window core (1) thus with the upper end sealing of sample forms (6), the bottom of sample forms (6) connects Hoover through joint (7).
2. the hermetically sealed sample window of dry method laser particle analyzer according to claim 1 is characterized in that the air stream outlet of above-mentioned secondary air chamber (2) is a ring exit.
3. the hermetically sealed sample window of dry method laser particle analyzer according to claim 1 is characterized in that, connection place of above-mentioned three air chambers (4) and sample forms (6) also is provided with equal air bound plate (11).
4. the hermetically sealed sample window of dry method laser particle analyzer according to claim 1 is characterized in that, above-mentioned joint (7) becomes joint for circumference.
5. the hermetically sealed sample window of dry method laser particle analyzer according to claim 1 is characterized in that, the height of above-mentioned sample forms (6) should be greater than 3 times of its width.
6. the hermetically sealed sample window of dry method laser particle analyzer according to claim 1; It is characterized in that; Above-mentioned clear glass window assembly comprises gasket seal (8), window frame (9), optical glass (10); Optical glass (10) is arranged on the window frame (9), and window frame (9) is arranged on the mounting hole of sample forms (6) two long side surfaces through gasket seal (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202676468U CN202166589U (en) | 2011-07-26 | 2011-07-26 | Omni-sealing sample window of dry powder laser particle sizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202676468U CN202166589U (en) | 2011-07-26 | 2011-07-26 | Omni-sealing sample window of dry powder laser particle sizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202166589U true CN202166589U (en) | 2012-03-14 |
Family
ID=45802406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202676468U Expired - Fee Related CN202166589U (en) | 2011-07-26 | 2011-07-26 | Omni-sealing sample window of dry powder laser particle sizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202166589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607446A (en) * | 2017-11-16 | 2018-01-19 | 济南微纳颗粒仪器股份有限公司 | A kind of internal-circulation type micro-example pond |
-
2011
- 2011-07-26 CN CN2011202676468U patent/CN202166589U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607446A (en) * | 2017-11-16 | 2018-01-19 | 济南微纳颗粒仪器股份有限公司 | A kind of internal-circulation type micro-example pond |
| CN107607446B (en) * | 2017-11-16 | 2023-09-15 | 济南微纳颗粒仪器股份有限公司 | Internal circulation type micro sample cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20170726 |