CN211206149U - Particle counting system - Google Patents
Particle counting system Download PDFInfo
- Publication number
- CN211206149U CN211206149U CN201922267646.7U CN201922267646U CN211206149U CN 211206149 U CN211206149 U CN 211206149U CN 201922267646 U CN201922267646 U CN 201922267646U CN 211206149 U CN211206149 U CN 211206149U
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- China
- Prior art keywords
- operational amplifier
- sampling pipe
- sampling
- counting system
- resistance
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000002245 particle Substances 0.000 title claims description 16
- 238000005070 sampling Methods 0.000 claims abstract description 31
- 238000004891 communication Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000013618 particulate matter Substances 0.000 abstract description 13
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000011897 real-time detection Methods 0.000 abstract description 3
- 239000008187 granular material Substances 0.000 abstract description 2
- 239000003570 air Substances 0.000 description 11
- 238000001514 detection method Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 210000002345 respiratory system Anatomy 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 239000003990 capacitor Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
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Abstract
The utility model discloses a particulate matter counting system, including the sampling pipe, the sampling ball is installed to sampling pipe one end, and sampling ball surface equipartition has a plurality of through-hole, installs granule count sensor and air quality sensor on the sampling pipe inner wall, and the control box is installed to the sampling pipe other end, and the exhaust hole has still been opened at the sampling pipe middle part, the utility model discloses simple structure, convenient operation can realize the categorised count to particulate matter in the air, can real-time detection air quality simultaneously, has improved air quality monitoring efficiency.
Description
Technical Field
The utility model relates to an air quality monitoring technology field specifically is a particulate matter counting system.
Background
Particulate matter having a particle size below 10 microns is commonly referred to as PM10, also known as respirable particulate matter or fly ash. The smaller the diameter of the particulate matter, the deeper the site of entry into the respiratory tract. Particles of 10 microns diameter are typically deposited in the upper respiratory tract, 5 microns diameter deep into the respiratory tract, and less than 2 microns can reach 100% deep into the bronchioles and alveoli. Inhalable particulate matter (PM10) persists in ambient air for a long period of time and has a significant impact on human health and atmospheric visibility. Some particulate matter comes from direct emissions from pollution sources such as chimneys and vehicles. Others are fine particles formed by the interaction of sulfur oxides, nitrogen oxides, volatile organic compounds and other compounds in the ambient air, whose chemical and physical composition varies widely depending on the location, climate, and season of the year. Inhalable particles are generally derived from motor vehicles traveling on unpaved asphalt, cement roads, the process of crushing and grinding the material, and dust being blown up by wind.
The current particle counting system has complex working principle and low detection precision, so the improvement is necessary.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a particulate matter counting system to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a particle counting system, includes the sampling pipe, the sampling ball is installed to sampling pipe one end, sampling ball surface equipartition has a plurality of through-hole, install granule count sensor and air quality sensor on the sampling pipe inner wall, the control box is installed to the sampling pipe other end, the sampling pipe middle part has still opened the exhaust hole.
Preferably, the controller is installed in the control box, an embedded processor, a sensing signal acquisition unit, a storage unit and a communication unit are arranged in the controller, the input end of the sensing signal acquisition unit is respectively connected with the particle counting sensor and the air quality sensor, the output end of the sensing signal acquisition unit is connected with the embedded processor, the embedded processor is connected with the storage unit, and the embedded processor is connected with the background monitoring center through the communication unit.
Preferably, the sensing signal acquisition unit comprises an operational amplifier A and an operational amplifier B, wherein the positive input end of the operational amplifier A is respectively connected with one end of a resistor A and one end of a resistor B, the other end of the resistor A is connected with the sensing signal acquisition end, the negative input end of the operational amplifier 1B is grounded, the output end of the operational amplifier A is respectively connected with the positive input end of the operational amplifier B and the other end of the resistor B, the negative input end of the operational amplifier B is grounded through a capacitor, and the output end of the operational amplifier B is connected with the sensing signal output end through the resistor B.
Preferably, a one-way regulating valve is arranged on the sampling pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses simple structure, convenient operation can realize the categorised count to particulate matter in the air, can real-time detection air quality simultaneously, has improved air quality monitoring efficiency.
(2) The utility model discloses a sensing signal acquisition unit can realize enlargiing the undistorted of sensor signal, has improved detection precision and efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a control schematic block diagram of the present invention;
fig. 3 is a circuit diagram of the sensing signal collecting unit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a particle counting system comprises a sampling tube 1, wherein a sampling ball 2 is arranged at one end of the sampling tube 1, a plurality of through holes 3 are uniformly distributed on the surface of the sampling ball 2, a particle counting sensor 4 and an air quality sensor 5 are arranged on the inner wall of the sampling tube 1, a control box 6 is arranged at the other end of the sampling tube 1, and an exhaust hole 7 is formed in the middle of the sampling tube 1; the sampling pipe 1 is provided with a one-way regulating valve 14.
The utility model discloses in, install the controller in the control box 6, be equipped with embedded treater 8 in the controller, sensing signal acquisition unit 9, memory cell 10 and communication unit 11, counting sensor 4 and air quality sensor 5 are connected respectively to the 9 inputs of sensing signal acquisition unit, and embedded treater 8 is connected to the output, embedded treater 8 connects memory cell 10, embedded treater 8 passes through communication unit 11 and connects backstage surveillance center 12.
The utility model discloses in, sensing signal acquisition unit 9 includes operational amplifier A1B, operational amplifier B2B, operational amplifier A1B positive input end is connecting resistance A1a one end and resistance B2a one end respectively, another termination sensing signal acquisition of resistance A1a holds, operational amplifier A1B negative pole input ground connection, operational amplifier A1B output connects operational amplifier B2B positive input end, the resistance B2a other end respectively, operational amplifier B2B negative pole input passes through electric capacity 13 ground connection, operational amplifier B2B output connects the sensing signal output end through resistance C3 a. The utility model discloses a sensing signal acquisition unit can realize enlargiing the undistorted of sensor signal, has improved detection precision and efficiency.
To sum up, the utility model discloses simple structure, convenient operation can realize the categorised count to particulate matter in the air, can real-time detection air quality simultaneously, has improved air quality monitoring efficiency.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A particle counting system comprising a sampling tube (1), characterized in that: sampling ball (2) are installed to sampling pipe (1) one end, sampling ball (2) surface equipartition has a plurality of through-hole (3), install particle count sensor (4) and air matter level sensor (5) on sampling pipe (1) inner wall, control box (6) are installed to the sampling pipe (1) other end, sampling pipe (1) middle part has still opened exhaust hole (7).
2. A particle counting system according to claim 1, wherein: install the controller in control box (6), be equipped with embedded treater (8) in the controller, sensing signal acquisition unit (9), memory cell (10) and communication unit (11), particle count sensor (4) and air quality sensor (5) are connected respectively to sensing signal acquisition unit (9) input, and embedded treater (8) is connected to the output, memory cell (10) is connected in embedded treater (8), backstage surveillance center (12) is connected through communication unit (11) in embedded treater (8).
3. A particle counting system according to claim 2, wherein: sense signal acquisition unit (9) are including operational amplifier A (1B), operational amplifier B (2B), operational amplifier A (1B) positive pole input is connecting resistance A (1a) one end and resistance B (2a) one end respectively, resistance A (1a) another termination sense signal acquisition end, operational amplifier A (1B) negative pole input ground connection, operational amplifier A (1B) output connects operational amplifier B (2B) positive pole input, resistance B (2a) other end respectively, operational amplifier B (2B) negative pole input passes through electric capacity (13) ground connection, operational amplifier B (2B) output passes through resistance C (3a) and connects the sense signal output.
4. A particle counting system according to claim 1, wherein: and a one-way regulating valve (14) is arranged on the sampling pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922267646.7U CN211206149U (en) | 2019-12-17 | 2019-12-17 | Particle counting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922267646.7U CN211206149U (en) | 2019-12-17 | 2019-12-17 | Particle counting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211206149U true CN211206149U (en) | 2020-08-07 |
Family
ID=71888226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922267646.7U Expired - Fee Related CN211206149U (en) | 2019-12-17 | 2019-12-17 | Particle counting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211206149U (en) |
-
2019
- 2019-12-17 CN CN201922267646.7U patent/CN211206149U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200807 |