CN207423739U - A kind of laser particle analyzer sample window - Google Patents
A kind of laser particle analyzer sample window Download PDFInfo
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- CN207423739U CN207423739U CN201721453609.XU CN201721453609U CN207423739U CN 207423739 U CN207423739 U CN 207423739U CN 201721453609 U CN201721453609 U CN 201721453609U CN 207423739 U CN207423739 U CN 207423739U
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- main body
- particle analyzer
- laser particle
- sample window
- cover
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Abstract
A kind of laser particle analyzer sample window, the main body for being internally provided with cavity including one, the main body is provided with inlet port and outlet port, two opposite walls of main body are respectively equipped with two light holes on laser direction of illumination, it is close to inner wall inside body cavity to set there are two air curtain box, the air curtain box is for hollow structure and equipped with air inlet and gas outlet, and each respectively close to two light holes, the light hole is directly communicated with the outside of main body for the gas outlet of two air curtain boxes；By compressed air as parclose, between powder sample is sealed in two air curtains, powder will not be made excessive；Medium glass, plastics etc. are not increased, laser direct irradiation does not change test environment on powder sample；Simple in structure, stable, maintenance cost is low, substantially without cleaning.
Description
Technical field
The utility model is related to a kind of powder test structures, and in particular to a kind of laser particle analyzer sample window.
Background technology
Existing powder sample dry method tests specimen in use window mostly in a manner that unprotect is open or hermetically sealed, and two
Kind mode cuts both ways.The open advantage of unprotect is simple in structure, and without cleaning, laser direct irradiation sample is tested,
No other media interference；Shortcoming is that sample is excessive easily by the perforate on sample window, and dirt is caused to environment and other components
Dye.Total closed type advantage is that powder sample is all sealed, will not be excessive.Shortcoming is the introduction of sealing material such as glass,
Laser must first can be just irradiated on powder sample through glass during test, and the light after scattering must can be just irradiated to by glass
On detector.Laser will certainly generate the signal strength and accuracy of sample tests very big after glass refraction twice
Influence.
The content of the invention
To solve, powder sample existing for above-mentioned prior art dry method test sample window is excessive, sealing material influences laser
The defects of test, the utility model provide a kind of simple in structure, and stable, maintenance cost is low, substantially without clean nothing
Open laser particle analyzer sample window is protected, it is excessive to effectively prevent powder；Sample window does not have extra media such as glass, plastics
Deng laser direct irradiation does not change test environment on powder sample.
The technical solution of the utility model is：A kind of laser particle analyzer sample window, the main body for being internally provided with cavity including one,
The main body is provided with inlet port and outlet port, it is characterised in that：Two opposite walls of main body are respectively equipped on laser direction of illumination
Two light holes are close to inner wall inside body cavity and are set there are two air curtain box, and the air curtain box is for hollow structure and equipped with air inlet
Mouthful and gas outlet, each respectively close to two light holes, the light hole is directly outer with main body for the gas outlets of two air curtain boxes
Portion communicates.
Further, the main body is square tube type.
Further, in order to further ensure powder sample will not overflow, while protect optical device not contaminated, main body
It is positive pressure in the laser particle analyzer optical device room of both sides.
It is located in the body cavity equipped with the feed pipe extended to by main body feed inlet above light hole, the feed pipe
In the middle part of the cavity of main body.
Further, light hole is circle.
Further, compressed air is passed through in order to more convenient, further includes cover, upper cover, cover is located above main body, upper cover
Above cover, upper cover lower part is close to main body and is set with cover, and main body upper end fits closely to form gas chamber with cover and upper cover,
The gas chamber is located above the cover both ends at air curtain box air inlet, and gas chamber has import, and the gas chamber sets two, air curtain box
Air inlet be located at respectively in two gas chambers.
Further, the air inlet of the air curtain box and gas outlet are respectively to the central extension of main body.
Further, compressed air, the external pneumatic fast plug of air inlet are passed through in order to meet toward both sides air curtain box.
Further, the cover is blind flange.
Further, the main body, air curtain box, cover, upper cover, import are stainless steel.
Technical solutions of the utility model have the advantages that：
1. the utility model, as parclose, between powder sample is sealed in two air curtains, will not make powder by compressed air
It is external to overflow；
2. the light hole of the utility model does not have extra media glass, plastics etc., laser or direct irradiation are in powder
On body sample, do not change test environment；
3. the utility model is simple in structure, stable, maintenance cost is low, substantially without cleaning.
Description of the drawings
Fig. 1 is the front schematic view of laser particle analyzer sample window provided by the utility model.
Fig. 2 is the side schematic view of laser particle analyzer sample window provided by the utility model.
Fig. 3 is the use schematic diagram of laser particle analyzer sample window provided by the utility model.
Fig. 4 is that laser particle analyzer sample window provided by the utility model uses schematic diagram in laser particle analyzer.
In figure, 1. main bodys, 2. air curtain boxes, 3. covers, 4. upper covers, 5. imports, 6. light holes, 7. feed pipes.
Specific embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawings and specifically
Embodiment elaborates to the utility model, and following embodiment is only used for the technical side for more clearly illustrating the utility model
Case, and cannot the scope of protection of the utility model be limited with this.
As shown in Figure 1 and Figure 2, a kind of laser particle analyzer sample window, the main body 1 for being internally provided with cavity including one, the main body
1 is provided with inlet port and outlet port, it is characterised in that：Two opposite walls of main body 1 are respectively equipped with two and lead on laser direction of illumination
Unthreaded hole 6,1 cavity inside of main body are close to inner wall and are set there are two air curtain box 2, and the air curtain box 2 is for hollow structure and equipped with air inlet
And gas outlet, the gas outlets of two air curtain boxes 2 each respectively close to two light holes 6,6 hole of thang-kng directly with main body 1
Outside communicates.
Intelligible, above-mentioned 6 generally circular through hole of light hole is beaten on two opposite walls of main body 1 on laser direction of illumination
The through hole got through thoroughly, outside of the light hole 6 directly with main body 1 communicate；In order to meet the needs detected in actual use, it is also contemplated that
To the scattering process of light, light hole 6 cannot be too small, and ordinary circumstance light hole 6 can be slightly larger than the diameter of light beam；Light hole 6
It is not required to too greatly, not so air curtain box is also required to adjust accordingly, and air curtain is formed at light hole 6 to meet, does not make powder sample
It is excessive.
2 air inlet of air curtain box leads to compressed air, powder sample is added in sample window, laser is at two light holes 6 of main body 1
It passes through, to sample test.Compressed air between powder sample is sealed in two air curtains, will not make powder excessive as parclose.
Simultaneously without increasing extra media, laser direct irradiation can be made not change test environment on powder sample.
As shown in figure 4, laser particle analyzer sample window uses schematic diagram in laser particle analyzer, in order to further ensure powder
Body sample will not overflow, while protect optical device not contaminated, for just in the laser particle analyzer optical device room of 1 both sides of main body
Pressure, optical device room is also connected with compressed air, i.e., as shown in the top filled arrows in Fig. 4 left and right sides, ensures at optical device
In positive pressure environment；Two intermediate filled arrows represent to lead to compressed air in gas chamber, and then enter in air curtain box；Center
Hollow arrow refers to the sample of addition.
As shown in Figs 1-4, it is preferred that for the ease of sample reach light hole at, the main body 1 be internally provided with by main body into
Material mouth extends to the feed pipe 7 of 6 top of light hole, and feed pipe 7 is located in the middle part of the cavity of main body 1.
As a kind of more preferably technical solution, with reference to shown in Fig. 1-3, the main body 1 that is internally provided with cavity including one, the master
Body 1 is provided with inlet port and outlet port, it is characterised in that：Two opposite walls of main body 1 are respectively equipped with two on laser direction of illumination
Light hole 6,1 cavity inside of main body are close to inner wall and are set there are two air curtain box 2, and the air curtain box 2 is for hollow structure and equipped with air inlet
Mouthful and gas outlet, the gas outlets of two air curtain boxes 2 each respectively close to two light holes 6,6 hole of thang-kng directly with main body 1
Outside communicate.1 top of main body is equipped with cover 3, and upper cover 4 is located in cover 3, and main body 1 fits closely shape with cover 3 and upper cover 4
Into gas chamber, gas chamber is located above 3 both ends of cover at 2 air inlet of air curtain box, and gas chamber has import 5, the air inlet point of air curtain box 2
It Wei Yu not be in two gas chambers.The air inlet of air curtain box 2 and gas outlet are empty convenient for disengaging compression respectively to the central extension of main body 1
Gas, others can not limited excessively, guarantee to pass in and out compressed air.
Import 5 can external pneumatic fast plug, compressed air from import 5 into air inlet chamber so that into air curtain box 2 in main body 1
Two isolation air curtains are formed at two light holes.
Gas chamber sets two, and the air inlet of air curtain box 2 is located in two gas chambers respectively, and gas chamber is arranged on 2 air inlet of air curtain box
Above 3 both ends of cover at mouthful.
The cover 3 is blind flange, and upper cover 4 plays sealing function, is sealing cover, and intermediate hollow can be the square in figure
Shape structure, lower face are fitted closely with main body and cover, and there is import 5 in top.
Such as Fig. 3, ordinary circumstance, the inside that air curtain box 2 is close to 1 liang of wall of main body is set, and the lower end of air curtain box 2 is shorter than main body 1
Lower end, air curtain box 2 is for hollow structure and equipped with air inlet and gas outlet, and the gas outlet of two air curtain boxes 2 is each respectively close to two
A light hole 6.
Light hole 6 is normally at the middle and lower part position of main body 1, and position of two light holes 6 respectively on 1 liang of wall of main body is opposite
Unanimously, as shown in the lateral arrows below Fig. 3, laser is made by the way that light hole 6 is preferably circular.
The main body 1, air curtain box 2, cover 3, upper cover 4, import 5, feed pipe 7 are stainless steel.
As shown in figure 3, into the compressed air of import 5 into air inlet chamber, main body 1 is closely set with cover 3 and 4 three of upper cover
It puts, centre forms sealed gas chamber, and above Fig. 3 shown in the arrow of the left and right sides, compressed air enters air curtain box 2 by gas chamber
Interior, lower section is discharged by air curtain box gas outlet.
The side schematic view of laser particle analyzer sample window shown in Fig. 2, light hole 6 is circle, positioned at the lower section of air curtain box 2.
Import 5 can external pneumatic fast plug, be first passed through compressed air, compressed air is by gas chamber and then enters air curtain box
2, while the laser particle analyzer optical device room of sample window both sides is also connected with compressed air, ensures that optical device is in positive pressure environment
In, it is further ensured that powder sample will not overflow, while protects optical device not contaminated.Utilize the flow at high speed of compressed air
Air curtain is formed in 1 both sides inner wall of main body.Then powder sample is added in by the feed pipe 7 among sample window, due to air curtain every
From effect, powder sample can only move from top to bottom, will not be excessive；Laser is shot through at two light holes 6 of main body simultaneously, to powder
Body sample is tested.
This device structure is simple, stable, and maintenance cost is low, by compressed air as parclose, powder sample is close
It is enclosed between two air curtains, it is excessive to effectively prevent powder；Sample window does not have extra media glass, plastics etc., and laser is direct
It is radiated on powder sample, does not change test environment and substantially without cleaning.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, although ginseng
The utility model is described in detail according to previous embodiment, it for those skilled in the art, still can be with
It modifies to the technical solution recorded in foregoing embodiments or equivalent substitution is carried out to which part technical characteristic.It is all
It is new to should be included in this practicality for any modification, equivalent substitution, improvement and etc. done within the spirit and principles of the present invention
Within the protection domain of type.
Claims (10)
1. a kind of laser particle analyzer sample window, the main body for being internally provided with cavity including one（1）, the main body（1）It is provided with charging
Mouth and discharge port, it is characterised in that：Main body on laser direction of illumination（1）Two opposite walls are respectively equipped with two light holes（6）, it is main
Body（1）Cavity inside is close to inner wall and is set there are two air curtain box（2）, the air curtain box（2）For hollow structure and equipped with air inlet and
Gas outlet, two air curtain boxes（2）Gas outlet each respectively close to two light holes（6）, the light hole（6）Directly and main body
（1）Outside communicate.
2. laser particle analyzer sample window according to claim 1, it is characterised in that：The main body（1）For square tube type.
3. laser particle analyzer sample window according to claim 2, it is characterised in that：Main body（1）The laser particle analyzer of both sides
It is positive pressure in optical device room.
4. laser particle analyzer sample window according to claim 3, it is characterised in that：The main body（1）Be equipped in cavity by
Main body feed inlet extends to light hole（6）The feed pipe of top（7）, the feed pipe（7）It is located in the middle part of the cavity of main body.
5. laser particle analyzer sample window according to claim 4, it is characterised in that：The light hole（6）For circle.
6. according to the laser particle analyzer sample window described in claim 1-5 any claims, it is characterised in that：Further include cover
（3）, upper cover（4）, cover（3）Positioned at main body（1）Top, upper cover（4）Above cover, upper cover（4）Lower part be close to main body with
Cover（3）It sets, main body（1）Upper end and cover（3）And upper cover（4）It fits closely to form gas chamber, the gas chamber is located at air curtain box
（2）Cover at air inlet（3）Above both ends, gas chamber has import（5）, the gas chamber setting two, air curtain box（2）Air inlet
Mouth is located in two gas chambers respectively.
7. laser particle analyzer sample window according to claim 6, it is characterised in that：The air curtain box（2）Air inlet and
Gas outlet is respectively to main body（1）Central extension.
8. laser particle analyzer sample window according to claim 7, it is characterised in that：Import（5）External pneumatic fast plug.
9. laser particle analyzer sample window according to claim 8, it is characterised in that：The cover（3）For blind flange.
10. laser particle analyzer sample window according to claim 9, it is characterised in that：The main body（1）, air curtain box（2）、
Cover（3）, upper cover（4）, import（5）It is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721453609.XU CN207423739U (en) | 2017-11-03 | 2017-11-03 | A kind of laser particle analyzer sample window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721453609.XU CN207423739U (en) | 2017-11-03 | 2017-11-03 | A kind of laser particle analyzer sample window |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207423739U true CN207423739U (en) | 2018-05-29 |
Family
ID=62307210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721453609.XU Active CN207423739U (en) | 2017-11-03 | 2017-11-03 | A kind of laser particle analyzer sample window |
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| Country | Link |
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| CN (1) | CN207423739U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677574A (en) * | 2017-11-03 | 2018-02-09 | 济南微纳颗粒仪器股份有限公司 | A kind of laser particle analyzer sample window |
| CN111665174A (en) * | 2020-07-17 | 2020-09-15 | 中国科学院长春光学精密机械与物理研究所 | Medical aerosol granularity monitoring device and atomizer system |
-
2017
- 2017-11-03 CN CN201721453609.XU patent/CN207423739U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677574A (en) * | 2017-11-03 | 2018-02-09 | 济南微纳颗粒仪器股份有限公司 | A kind of laser particle analyzer sample window |
| CN111665174A (en) * | 2020-07-17 | 2020-09-15 | 中国科学院长春光学精密机械与物理研究所 | Medical aerosol granularity monitoring device and atomizer system |
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