CN207248691U - A kind of anti-net of wadding of particulate matter sensors - Google Patents
A kind of anti-net of wadding of particulate matter sensors Download PDFInfo
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- CN207248691U CN207248691U CN201720933042.XU CN201720933042U CN207248691U CN 207248691 U CN207248691 U CN 207248691U CN 201720933042 U CN201720933042 U CN 201720933042U CN 207248691 U CN207248691 U CN 207248691U
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- wadding
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- particulate matter
- air inlet
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Abstract
A kind of anti-net of wadding of particulate matter sensors, belong to environmental monitoring technology field, including anti-net of wadding and filter opening, the anti-net of wadding is installed on the air inlet of particulate matter sensors, the anti-net of wadding is tubular structure, it is designed with filter hole on the circumference and section of the anti-net of wadding, the gross area of filter hole is always more than the sectional area of air inlet in the anti-net of wadding.The device utilizes 360 degree of barrel-like structure, the filter structure of large area is realized, by the diameter and height that reasonably control strainer, it is easy to realize that hole area summation is much larger than the area of inlet air thief hatch, so that the windage of strainer reduces, the intake of equipment is not had an impact.
Description
Technical field
A kind of anti-net of wadding of particulate matter sensors is the utility model is related to, belongs to environmental monitoring technology field.
Background technology
In the prior art, Atmospheric Particulate Matter has become one of important content that society pays close attention to jointly.Measurement
The index of grain thing concentration mainly includes TSP (overall suspended pellet), PM10 (aerodynamic size is less than 10 microns of particle)
With PM2.5 (aerodynamic size is less than 2.5 microns of particle).The detection method of particle concentration is mainly by weighing at present
Method, micro oscillation sedimentation balance method, β ray methods and light scattering method.Weight method measurement process complexity is, it is necessary to which professional person is operated；It is micro-
Oscillating balance method and β ray methods can realize automatic measurement, but cannot be detected in real time, and instrument price is expensive.Light
Scattering method is that the scattering principle of light is detected using molecule, and fast with detection speed, cost is low, easy to use, can
The advantages that being detected with real-time online.Light scattering hair is divided into nephelometry and granule counting method.Nephelometry is that own according in test chamber
Relation between the size and granule density of KPT Scatter luminous intensity is detected.Nephelometry accuracy of detection is low, and needs to add
Upper physics cutting device, filters out that either more than 10 microns of particle could realize PM2.5's or PM10 more than 2.5 microns in advance
Detection.Optical particulate counting method scatters the wide small particle diameter for measuring particle according to single particle, so as to obtain gas sampling body
The size and number of product endoparticle thing, therefore it can measure the concentration of TSP in air, PM10 and PM2.5, measurement side at the same time
Just.
But existing particulate matter sensors are afraid of floccule and bulky grain very much, particularly floccule enters optical principle particle
Thing sensor device is easy to cause sensor failure, into the sensor of other weighing principles, also be easy to cause larger measurement
Error；The net structures such as traditional anti-wadding grid, grating structure, due to the unidirectional factor of air-flow, is easily adhered in anti-net of wadding,
Steam condensation etc. is met, easily produces paste net phenomenon；There is following defect using the back-blowing device of timing：One is to cause cost to increase
Add, volume increase, weight increase, power consumption is high, and sealing effect caused by back-blowing device, which declines, structure is more complicated causes failure rate
Measurement is interrupted when height, dedusting.
Utility model content
For above-mentioned deficiency, the utility model provides a kind of anti-net of wadding of particulate matter sensors.
The utility model is achieved through the following technical solutions：A kind of anti-net of wadding of particulate matter sensors, including anti-wadding
Net and filter opening, the anti-net of wadding are installed on the air inlet of particulate matter sensors, and the anti-net of wadding is tubular structure, the anti-wadding
It is designed with filter opening on the circumference and section of net, the gross area of filter opening is always more than the sectional area of air inlet in the anti-net of wadding.
Further, the hole identical with air inlet size is provided with described one end face of anti-net of wadding, when the anti-net of wadding is installed,
Air inlet is inserted in the hole on anti-net of wadding end face.
Further, the anti-net of wadding is fixed on air inlet by glue.
Further, the filter opening in the anti-net of wadding is symmetrical.
Further, the particulate matter sensors beta ray, weight method and other various particle sampling equipment.
The usefulness of the utility model is that the device utilizes 360 degree of barrel-like structure, realizes the strainer knot of large area
Structure, by the diameter and height that reasonably control strainer, it is easy to realize that hole area summation is much larger than the area of inlet air thief hatch,
So that the windage of strainer reduces, the intake of equipment is not had an impact；Symmetrical air inlet structure：Utilize natural wind speed and direction
Feature, makes different wind direction and wind velocities realize that blowback part strainer realizes dedusting, except wadding, solves the problem that floccule is accumulated；From
In right environment, most wind is the wind of horizontal direction, using 360 degree of tubular structure, can reduce the water of air inlet in bucket
Flat wind speed, so that reducing air pressure caused by wind speed reduces, makes the air quantity of air inlet more stable, more constant, so as to reduce measurement error；
Size by the hole for controlling strainer, can filter out the particle more than the size.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is anti-net of wadding structure diagram in the utility model Fig. 1.
In figure, 1, particulate matter sensors, 2, air inlet, 3, anti-net of wadding, 4, filter opening.
Embodiment
A kind of anti-net of wadding of particulate matter sensors, including anti-net of wadding 3 and filter opening 7, the anti-net of wadding 3 are passed installed in particulate matter
On the air inlet 2 of sensor 1, the anti-net of wadding 3 is tubular structure, and filter opening 7 is designed with the circumference and section of the anti-net of wadding 3,
The gross area of filter opening 7 is always more than the sectional area of air inlet 2 in the anti-net of wadding 3.
Further, the hole identical with 2 size of air inlet is provided with described 3 one end faces of anti-net of wadding, the anti-net of wadding 3 is installed
When, air inlet 2 is inserted in the hole on anti-3 end face of net of wadding.
Further, the anti-net of wadding 3 is fixed on air inlet 2 by glue.
Further, the filter opening 4 in the anti-net of wadding 3 is symmetrical.
Further, the beta ray of particulate matter sensors 1, weight method and other various particle sampling equipment.
The device utilizes 360 degree of barrel-like structure, the filter structure of large area is realized, by reasonably controlling strainer
Diameter and height, it is easy to realize that hole area summation is much larger than the area of inlet air thief hatch, so that the windage of filter opening reduces, no
The intake of equipment is had an impact；Symmetrical air inlet structure：Using natural wind speed and direction feature, make different wind direction and wind velocities real
Existing blowback part filter opening realizes dedusting, except wadding；In natural environment, most wind is the wind of horizontal direction, utilizes 360 degree of cylinder
Shape structure, can reduce the horizontal wind speed of air inlet in cylinder, so that reducing air pressure caused by wind speed reduces, make the air quantity of air inlet more
Stablize, it is more constant, so as to reduce measurement error；By controlling the size of filter opening, the particle more than the size can be filtered out.
For the ordinary skill in the art, teaching according to the present utility model, is not departing from the utility model
Principle with spirit in the case of, the changes, modifications, replacement and the modification that are carried out to embodiment still fall within the utility model
Within protection domain.
Claims (4)
1. a kind of anti-net of wadding of particulate matter sensors, including anti-net of wadding and filter opening, it is characterised in that：The anti-net of wadding be installed on
On the air inlet of grain thing sensor, the anti-net of wadding is tubular structure, and filter opening is designed with the circumference and section of the anti-net of wadding,
The gross area of filter opening is always more than the sectional area of air inlet in the anti-net of wadding.
2. the anti-net of wadding of particulate matter sensors as claimed in claim 1, it is characterised in that：Opened on described one end face of anti-net of wadding
There is the hole identical with air inlet size, when the anti-net of wadding is installed, air inlet is inserted in the hole on anti-net of wadding end face.
3. the anti-net of wadding of particulate matter sensors as claimed in claim 1, it is characterised in that：The anti-net of wadding is fixed by glue
On air inlet.
4. the anti-net of wadding of particulate matter sensors as claimed in claim 1, it is characterised in that：Filter opening in the anti-net of wadding is symmetrical
Distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720933042.XU CN207248691U (en) | 2017-07-29 | 2017-07-29 | A kind of anti-net of wadding of particulate matter sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720933042.XU CN207248691U (en) | 2017-07-29 | 2017-07-29 | A kind of anti-net of wadding of particulate matter sensors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207248691U true CN207248691U (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720933042.XU Active CN207248691U (en) | 2017-07-29 | 2017-07-29 | A kind of anti-net of wadding of particulate matter sensors |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202752A (en) * | 2017-07-29 | 2017-09-26 | 山东诺方电子科技有限公司 | A kind of anti-net of wadding of particulate matter sensors |
-
2017
- 2017-07-29 CN CN201720933042.XU patent/CN207248691U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202752A (en) * | 2017-07-29 | 2017-09-26 | 山东诺方电子科技有限公司 | A kind of anti-net of wadding of particulate matter sensors |
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