CN207181231U - A kind of laser particle size analyzer dry method window - Google Patents
A kind of laser particle size analyzer dry method window Download PDFInfo
- Publication number
- CN207181231U CN207181231U CN201721048942.2U CN201721048942U CN207181231U CN 207181231 U CN207181231 U CN 207181231U CN 201721048942 U CN201721048942 U CN 201721048942U CN 207181231 U CN207181231 U CN 207181231U
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- Prior art keywords
- sample
- sample forms
- laser particle
- particle size
- dry method
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- 239000002245 particle Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000005304 optical glass Substances 0.000 claims description 5
- 230000003584 silencer Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003921 particle size analysis Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a kind of laser particle size analyzer dry method window, including sample forms and sample window core, the sample window core stretches into from sample forms rear end, the sample forms rear end is provided with air inlet, the sample window intracoelomic cavity is as air intake passage, the front end of the sample forms is provided with B/P EGR Back Pressure Transducer EGR mouthpiece, and the B/P EGR Back Pressure Transducer EGR mouthpiece rear end is provided with the anti-blocking portion of triangle；For the structure by installing B/P EGR Back Pressure Transducer EGR mouthpiece additional in front end and carrying out improvement design, having interface prevents that itself from blocking function, plays more preferable protection laser particle analyzer.
Description
Technical field
It the utility model is related to grain size analysis instrument technology, particularly a kind of laser particle size analyzer dry method window.
Background technology
Because dry laser particle size analyzer uses gas as particle decentralized medium, therefore for this kind of laser particle size analysis
Instrument, dry method window and sample intake passage are still to be important.The measurement window of dry laser particle size analyzer connects with air at present, works as gas
Fixed double phase flow take particle at a high speed by window receive laser irradiate when, have partial particulate effusion, high-speed motion particle will immediately
Glass is worn, and has once been mixed into inflammable and explosive particle, very big danger will be produced.
A designer devises a kind of laser particle size analyzer, referring in particular to Publication No. CN 202166589U's《Dry method
The hermetically sealed sample window of laser particle analyzer》, it is noted that sample window core, support and sample forms, sample forms are arranged under support
Side, sample window core are arranged on the top of support, and above-mentioned sample forms are hollow, rectangular, and its two relative long side surface is symmetrically arranged with
Clear glass window component, the air stream outlet of sample window core is located in sample window body and the center of airflow direction and sample forms weight
Close, be disposed with the secondary air chamber that leads to sample window body phase and three times air chamber from inside to outside in the outside of sample window core and by sample
The upper end sealing of product forms, the bottom of sample forms connects vacuum cleaner by joint.It is but in practice, it has been found that this
Structure excessively relies on secondary air chamber and the three times sealing structure between air chamber, can not very completely cut off extraneous particulate matter, in work
Easily blocked when making at sensing station, the effect for preventing the pollution of sample powder and optical glass window abrasion
Also there is room for promotion.
The content of the invention
For overcome the deficiencies in the prior art, the utility model provides a kind of laser particle size analyzer dry method window.
Technical scheme is used by the utility model solves its technical problem：
A kind of laser particle size analyzer dry method window, including sample forms and sample window core, the sample window core is from sample
Product forms rear end is stretched into, and the sample forms rear end is provided with air inlet, and the sample window intracoelomic cavity is as air intake passage, the sample
The front end of product forms is provided with B/P EGR Back Pressure Transducer EGR mouthpiece, and the B/P EGR Back Pressure Transducer EGR mouthpiece rear end is provided with the anti-blocking portion of triangle.
As a preference, the sample forms both sides are symmetrically arranged with optical glass window.
As a preference, the sample forms are provided with silencer rearward at side position.
As a preference, the middle of the sample forms is provided with extension.
As a preference, the air inlet is located at the both sides of sample forms rear end, is provided between the air inlet
Air intake water conservancy diversion triangle position.
As a preference, the sample window core is located at extension opening position and is provided with fixture, the fixture
Rear and front end is provided with water conservancy diversion triangle position.
The beneficial effects of the utility model are：The structure is by installing B/P EGR Back Pressure Transducer EGR mouthpiece additional in front end and being improved
Design, having interface prevents that itself from blocking function, plays more preferable protection laser particle analyzer.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is stereogram of the present utility model；
Fig. 2 is partial sectional view of the present utility model.
Embodiment
In order that the object, technical solution and advantage of the application are more clearly understood, it is right below in conjunction with drawings and Examples
The utility model is further elaborated.For the thorough explanation present invention, it is special that some can be related in following description
Determine details.And in these no specific details, the invention can still be realized, i.e., the technical staff in art uses this
These of place describe and stated that the others skilled in the art into art can more effectively introduce their work essence.In addition
It should be noted that the word " front side " used below in description, " rear side ", " left side ", " right side ", " upside ", " downside " etc.
The direction in accompanying drawing is referred to, word " interior " and " outer " are referred respectively to towards or away from the direction of particular elements geometric center,
Person skilled should not be construed as beyond the application protection domain making simple, need not be creative adjustment to above-mentioned direction
Technology.It should be appreciated that specific embodiment described herein is not used to limit real protection only to explain the application
Scope.And be the purpose of the present invention of avoiding confusion, due to well known manufacture method, control program, part dimension, material composition,
The technology of pipe-line layout etc. is not it will be understood that therefore they are described in detail.
Reference picture 1, Fig. 2, a kind of laser particle size analyzer dry method window, including sample forms 1 and sample window core 2, institute
State sample window core 2 to stretch into from the rear end of sample forms 1, the rear end of sample forms 1 is provided with air inlet 3, the inner chamber of sample forms 1
As air intake passage, the front ends of the sample forms 1 is as dust catcher mouth, available for connecing vacuum cleaner or other similar knots
Structure.The front end of the sample forms 1 is provided with B/P EGR Back Pressure Transducer EGR mouthpiece 4, and the rear end of B/P EGR Back Pressure Transducer EGR mouthpiece 4 is provided with
The anti-blocking portion 41 of triangle, prevent from blocking function.
Further embodiment, reference picture 1, a kind of Fig. 2 laser particle size analyzer dry method window, wherein referred to herein
" embodiment " refers to special characteristic, structure or the characteristic that may be included at least one implementation of the application.In this specification
" in the embodiment " that middle different places occur not refers both to same embodiment, nor single or selective with other realities
Apply the mutually exclusive embodiment of example.Embodiment includes sample forms 1 and sample window core 2, and the sample window core 2 is from sample forms 1
Rear end is stretched into, and the rear end of sample forms 1 is provided with air inlet 3, and the air inlet 3 is located at the rear end both sides of sample forms 1, described
Air intake water conservancy diversion triangle position 31 is provided between air inlet 3.The inner chamber of sample forms 1 is as air intake passage, the sample forms 1
Front end be provided with B/P EGR Back Pressure Transducer EGR mouthpiece 4, the rear end of B/P EGR Back Pressure Transducer EGR mouthpiece 4 is provided with the anti-blocking portion 41 of triangle.Institute
State sample forms 1 and be provided with silencer 6 at side position rearward, effectively reduce work noise.
Further embodiment, reference picture 1, a kind of Fig. 2 laser particle size analyzer dry method window, including sample forms 1
With sample window core 2, the sample window core 2 stretches into from the rear end of sample forms 1, and the rear end of sample forms 1 is provided with air inlet 3, institute
The inner chamber of sample forms 1 is stated to be symmetrically arranged with optical glass window 5 as air intake passage, the both sides of sample forms 1, can prevent
In sample powder pollution machine.The front end of the sample forms 1 is provided with B/P EGR Back Pressure Transducer EGR mouthpiece 4, the B/P EGR Back Pressure Transducer EGR interface
The rear end of part 4 is provided with the anti-blocking portion 41 of triangle, and the middle of the sample forms 1 is provided with extension 11, stable protection air-flow
Greatly reduce the pollution of sample powder and abrasion optical glass window.The sample window core 2 is located at the opening position of extension 11 and is provided with
Fixture 7, the rear and front end of the fixture 7 are provided with water conservancy diversion triangle position 71.
According to above-mentioned principle, the utility model can also carry out appropriate change and modification to above-mentioned embodiment.Therefore,
The utility model is not limited to embodiment disclosed and described above, to some modifications and changes of the present utility model
It should also be as falling into scope of the claims of the present utility model.
Claims (6)
1. a kind of laser particle size analyzer dry method window, including sample forms (1) and sample window core (2), the sample window core
(2) stretched into from sample forms (1) rear end, sample forms (1) rear end is provided with air inlet (3), sample forms (1) inner chamber
As air intake passage, it is characterised in that：The front end of the sample forms (1) is provided with B/P EGR Back Pressure Transducer EGR mouthpiece (4), described negative
Pressure sensor mouthpiece (4) rear end is provided with the anti-blocking portion of triangle (41).
A kind of 2. laser particle size analyzer dry method window according to claim 1, it is characterised in that：The sample forms
(1) both sides are symmetrically arranged with optical glass window (5).
A kind of 3. laser particle size analyzer dry method window according to claim 1, it is characterised in that：The sample forms
(1) silencer (6) is provided with side position rearward.
A kind of 4. laser particle size analyzer dry method window according to claim 1, it is characterised in that：The sample forms
(1) middle is provided with extension (11).
A kind of 5. laser particle size analyzer dry method window according to claim 1 or 3, it is characterised in that：The air intake
Mouth (3) is located at sample forms (1) rear end both sides, and air intake water conservancy diversion triangle position (31) is provided between the air inlet (3).
A kind of 6. laser particle size analyzer dry method window according to claim 4, it is characterised in that：The sample window core
(2) extension (11) opening position is provided with fixture (7), the rear and front end of the fixture (7) is provided with water conservancy diversion triangle
Position (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721048942.2U CN207181231U (en) | 2017-08-18 | 2017-08-18 | A kind of laser particle size analyzer dry method window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721048942.2U CN207181231U (en) | 2017-08-18 | 2017-08-18 | A kind of laser particle size analyzer dry method window |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207181231U true CN207181231U (en) | 2018-04-03 |
Family
ID=61741720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721048942.2U Active CN207181231U (en) | 2017-08-18 | 2017-08-18 | A kind of laser particle size analyzer dry method window |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207181231U (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 |
-
2017
- 2017-08-18 CN CN201721048942.2U patent/CN207181231U/en active Active
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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| GR01 | Patent grant |