CN107677574A - A kind of laser particle analyzer sample window - Google Patents
A kind of laser particle analyzer sample window Download PDFInfo
- Publication number
- CN107677574A CN107677574A CN201711072193.1A CN201711072193A CN107677574A CN 107677574 A CN107677574 A CN 107677574A CN 201711072193 A CN201711072193 A CN 201711072193A CN 107677574 A CN107677574 A CN 107677574A
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- Prior art keywords
- main body
- particle analyzer
- air
- lid
- laser particle
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- 239000002245 particle Substances 0.000 title claims abstract description 29
- 238000005286 illumination Methods 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 230000008676 import Effects 0.000 claims description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 27
- 239000011521 glass Substances 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 abstract description 4
- 229920003023 plastic Polymers 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000008393 encapsulating agent Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optical Measuring Cells (AREA)
Abstract
A kind of laser particle analyzer sample window, the main body of cavity is provided with including an inside, the main body is provided with charging aperture and discharging opening, two relative walls of main body are respectively equipped with two light holes on laser direction of illumination, it is close to inwall inside body cavity and is provided with two air curtain boxes, the air curtain box is hollow structure and is provided with air inlet and gas outlet, and the gas outlet of two air curtain boxes each directly communicates respectively close to two light holes, the light hole with the outside of main body；By compressed air as parclose, between powder sample is sealed in into two air curtains, powder will not be made excessive；Medium glass, plastics etc. are not increased, laser is directly radiated on powder sample, does not change test environment；Simple in construction, stable, maintenance cost is low, substantially without cleaning.
Description
Technical field
The present invention relates to a kind of powder test structure, 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 by the way of unprotect is open or hermetically sealed, and two
Kind mode cuts both ways.The open advantage of unprotect is simple in construction, and without cleaning, the direct irradiating sample of laser is tested,
Disturbed without other media；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 encapsulant such as glass,
Laser first can just must be 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 produce very big after glass refraction twice to the signal intensity and accuracy of sample tests
Influence.
The content of the invention
To solve, powder sample existing for above-mentioned prior art dry method test sample window is excessive, encapsulant influences laser
The defects of test, the invention provides a kind of simple in construction, stable, maintenance cost is low, substantially without the unprotect of cleaning
Open laser particle analyzer sample window, it is excessive to effectively prevent powder；Sample window does not have extra media glass, plastics etc.,
Laser is directly radiated on powder sample, does not change test environment.
The technical scheme is that：A kind of laser particle analyzer sample window, including an inside are provided with the main body of cavity, described
Main body is provided with charging aperture and discharging opening, it is characterised in that：Two relative walls of main body are respectively equipped with two on laser direction of illumination
Light hole, inwall is close to inside body cavity and is provided with two air curtain boxes, the air curtain box be hollow structure and provided with air inlet and
Gas outlet, the gas outlet of two air curtain boxes is each respectively close to two light holes, outside phase of the light hole directly with main body
It is logical.
Further, the main body is square tube type.
Further, in order to be further ensured that powder sample will not overflow, while protect optics not contaminated, main body
It is malleation in the laser particle analyzer optics room of both sides.
The feed pipe extended to by main body charging aperture above light hole is provided with the body cavity, the feed pipe is located at
In the middle part of the cavity of main body.
Further, light hole is circle.
Further, compressed air, in addition to lid, upper lid are passed through in order to more convenient, lid is located above main body, upper lid
Above lid, upper lid bottom is close to main body and set with lid, and main body upper end is brought into close contact to form air chamber with lid and upper lid,
The air chamber is located above the lid both ends at air curtain box air inlet, and air chamber has import, and the air chamber sets two, air curtain box
Air inlet respectively in two air chambers.
Further, the air inlet of the air curtain box and gas outlet are respectively to the central extension of main body.
Further, in order to meet to be passed through compressed air, the external pneumatic fast plug of air inlet toward both sides air curtain boxes.
Further, the lid is blind flange.
Further, the main body, air curtain box, lid, upper lid, import are stainless steel.
Technical solution of the present invention has the advantages that：
1. the present invention, as parclose, between powder sample is sealed in into two air curtains, will not make powder excessive by compressed air；
2. the present invention light hole there is no extra media glass, plastics etc., laser or direct irradiation on powder sample,
Do not change test environment；
3. the present invention is simple in construction, stable, maintenance cost is low, substantially without cleaning.
Brief description of the drawings
Fig. 1 is the front schematic view of laser particle analyzer sample window provided by the invention.
Fig. 2 is the side schematic view of laser particle analyzer sample window provided by the invention.
Fig. 3 is the use schematic diagram of laser particle analyzer sample window provided by the invention.
Fig. 4 is that laser particle analyzer sample window provided by the invention uses schematic diagram in laser particle analyzer.
In figure, 1. main bodys, 2. air curtain boxes, 3. lids, cover on 4., 5. imports, 6. light holes, 7. feed pipes.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawings and it is embodied
Example elaborates to the present invention, and following examples are only used for more clearly illustrating technical scheme, and can not be with
This is limited the scope of the invention.
As shown in Figure 1 and Figure 2, a kind of laser particle analyzer sample window, including an inside are provided with the main body 1 of cavity, the main body
1 is provided with charging aperture and discharging opening, it is characterised in that：Two relative walls of main body 1 are respectively equipped with two and led on laser direction of illumination
Unthreaded hole 6, the cavity inside of main body 1 are close to inwall and are provided with two air curtain boxes 2, and the air curtain box 2 is hollow structure and is provided with air inlet
And gas outlet, the gas outlets of two air curtain boxes 2 each respectively close to two light holes 6, the hole of thang-kng 6 directly with main body 1
Outside communicates.
It is intelligible, above-mentioned 6 generally circular through hole of light hole, beaten on two relative 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 can not 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, to meet to form air curtain at light hole 6, does not make powder sample
It is excessive.
The air inlet of air curtain box 2 leads to compressed air, powder sample is added in sample window, laser is at two light holes 6 of main body 1
Pass through, to sample test.Compressed air between powder sample is sealed in into two air curtains, will not make powder excessive as parclose.
Simultaneously without increase extra media, laser can be made directly to be radiated on powder sample, not change test environment.
As shown in figure 4, laser particle analyzer sample window uses schematic diagram in laser particle analyzer, in order to be further ensured that powder
Body sample will not overflow, while protect optics not contaminated, for just in the laser particle analyzer optics room of the both sides of main body 1
Pressure, optics room is also connected with compressed air, i.e., as shown in the top filled arrows on Fig. 4 or so sides, ensures at optics
In positive pressure environment；Two middle filled arrows represent to lead to compressed air toward in air chamber, and then enter in air curtain box；Center
Hollow arrow refers to the sample of addition.
As Figure 1-4, it is preferred that reached for the ease of sample at light hole, the inside of main body 1 is provided with to be entered by main body
Material mouth extends to the feed pipe 7 of the top of light hole 6, and feed pipe 7 is located in the middle part of the cavity of main body 1.
As a kind of more excellent technical scheme, with reference to shown in Fig. 1-3, including an inside is provided with the main body 1 of cavity, the master
Body 1 is provided with charging aperture and discharging opening, it is characterised in that：Two relative walls of main body 1 are respectively equipped with two on laser direction of illumination
Light hole 6, the cavity inside of main body 1 are close to inwall and are provided with two air curtain boxes 2, and the air curtain box 2 is hollow structure and is provided with air inlet
Mouthful and gas outlet, the gas outlets of two air curtain boxes 2 each respectively close to two light holes 6, the hole of thang-kng 6 directly with main body 1
Outside communicate.The top of main body 1 is provided with lid 3, and upper lid 4 is located on lid 3, and main body 1 is brought into close contact shape with lid 3 and upper lid 4
Into air chamber, air chamber is located above the both ends of lid 3 at the air inlet of air curtain box 2, and air chamber has import 5, the air inlet point of air curtain box 2
Wei Yu not be in two air chambers.The air inlet of air curtain box 2 and gas outlet are easy to disengaging compression empty 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 enter air inlet chamber so that enter air curtain box 2 in main body 1
Two isolation air curtains are formed at two light holes.
Air chamber sets two, and for the air inlet of air curtain box 2 respectively in two air chambers, air chamber is arranged on the air inlet of air curtain box 2
Above the both ends of lid 3 at mouthful.
The lid 3 is blind flange, and upper lid 4 plays sealing function, is closure, intermediate hollow, can be the square in figure
Shape structure, lower surface are brought into close contact with main body and lid, and there is import 5 top.
Such as Fig. 3, ordinary circumstance, the inner side 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 hollow structure and is provided with air inlet and gas outlet, and the gas outlet of two air curtain boxes 2 is each respectively close to two
Individual 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 relative
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, lid 3, upper lid 4, import 5, feed pipe 7 are stainless steel.
As shown in figure 3, the compressed air into import 5 enters air inlet chamber, main body 1 is closely set with lid 3 and the three of upper lid 4
Put, 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 air 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 air chamber and then enters air curtain box
2, while the laser particle analyzer optics room of sample window both sides is also connected with compressed air, ensures that optics is in positive pressure environment
In, it is further ensured that powder sample will not overflow, while protect optics not contaminated.Utilize the flow at high speed of compressed air
Air curtain is formed in the both sides inwall of main body 1.Then powder sample is added 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 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 preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although with reference to foregoing reality
Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic.All essences in the present invention
Any modification, equivalent substitution and improvements done within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of laser particle analyzer sample window, including an inside are provided with the main body of cavity（1）, the main body（1）It is provided with charging
Mouth and discharging opening, it is characterised in that：Main body on laser direction of illumination（1）Two relative walls are respectively equipped with two light holes（6）, it is main
Body（1）Cavity inside is close to inwall and is provided with two air curtain boxes（2）, the air curtain box（2）For hollow structure and provided 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 malleation in optics room.
4. laser particle analyzer sample window according to claim 3, it is characterised in that：The main body（1）Be provided with cavity by
Main body charging aperture 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：Also include lid
（3）, upper lid（4）, lid（3）Positioned at main body（1）Top, upper lid（4）Above lid, upper lid（4）Bottom be close to main body with
Lid（3）Set, main body（1）Upper end and lid（3）With upper lid（4）It is brought into close contact to form air chamber, the air chamber is located at air curtain box
（2）Lid at air inlet（3）Above both ends, air chamber has import（5）, the air chamber setting two, air curtain box（2）Air inlet
Mouth is respectively in two air chambers.
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 lid（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）、
Lid（3）, upper lid（4）, import（5）It is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072193.1A CN107677574A (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 |
|---|---|---|---|
| CN201711072193.1A CN107677574A (en) | 2017-11-03 | 2017-11-03 | A kind of laser particle analyzer sample window |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107677574A true CN107677574A (en) | 2018-02-09 |
Family
ID=61146100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711072193.1A Pending CN107677574A (en) | 2017-11-03 | 2017-11-03 | A kind of laser particle analyzer sample window |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107677574A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125316A (en) * | 2021-03-29 | 2021-07-16 | 珠海欧美克仪器有限公司 | Shunt protection dry method window and dry method test system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2616902Y (en) * | 2003-03-11 | 2004-05-19 | 庞建梁 | Measuring channel for transmission-type smokemeter |
| CN203053826U (en) * | 2013-02-28 | 2013-07-10 | 山东中实易通集团有限公司 | Test circuit of laser particle size analyzer |
| CN105181537A (en) * | 2015-09-30 | 2015-12-23 | 丹东百特仪器有限公司 | Online laser particle size monitoring system and control method thereof |
| WO2016067049A1 (en) * | 2014-10-31 | 2016-05-06 | Pcme Limited | Methods and apparatus relating to particulate monitors |
| CN206311471U (en) * | 2016-12-28 | 2017-07-07 | 郑州光力科技股份有限公司 | Smokemeter |
| CN207423739U (en) * | 2017-11-03 | 2018-05-29 | 济南微纳颗粒仪器股份有限公司 | A kind of laser particle analyzer sample window |
-
2017
- 2017-11-03 CN CN201711072193.1A patent/CN107677574A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2616902Y (en) * | 2003-03-11 | 2004-05-19 | 庞建梁 | Measuring channel for transmission-type smokemeter |
| CN203053826U (en) * | 2013-02-28 | 2013-07-10 | 山东中实易通集团有限公司 | Test circuit of laser particle size analyzer |
| WO2016067049A1 (en) * | 2014-10-31 | 2016-05-06 | Pcme Limited | Methods and apparatus relating to particulate monitors |
| CN105181537A (en) * | 2015-09-30 | 2015-12-23 | 丹东百特仪器有限公司 | Online laser particle size monitoring system and control method thereof |
| CN206311471U (en) * | 2016-12-28 | 2017-07-07 | 郑州光力科技股份有限公司 | Smokemeter |
| CN207423739U (en) * | 2017-11-03 | 2018-05-29 | 济南微纳颗粒仪器股份有限公司 | A kind of laser particle analyzer sample window |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125316A (en) * | 2021-03-29 | 2021-07-16 | 珠海欧美克仪器有限公司 | Shunt protection dry method window and dry method test system |
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