CN106932320A - Particulate matter detector - Google Patents
Particulate matter detector Download PDFInfo
- Publication number
- CN106932320A CN106932320A CN201710196242.6A CN201710196242A CN106932320A CN 106932320 A CN106932320 A CN 106932320A CN 201710196242 A CN201710196242 A CN 201710196242A CN 106932320 A CN106932320 A CN 106932320A
- Authority
- CN
- China
- Prior art keywords
- haze
- gas
- particulate matter
- chamber
- surveying
- Prior art date
- 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.)
- Pending
Links
- 239000013618 particulate matter Substances 0.000 title claims abstract description 45
- 239000002245 particle Substances 0.000 claims abstract description 31
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 26
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000009123 feedback regulation Effects 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 36
- 239000012528 membrane Substances 0.000 description 20
- 238000007789 sealing Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- 229910052782 aluminium Inorganic materials 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 238000005520 cutting process Methods 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000012491 analyte Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
- G01N15/0618—Investigating concentration of particle suspensions by collecting particles on a support of the filter type
- G01N15/0625—Optical scan of the deposits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2214—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling by sorption
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
-
- 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
-
- 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
- G01N15/06—Investigating concentration of particle suspensions
-
- 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
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
- G01N15/0618—Investigating concentration of particle suspensions by collecting particles on a support of the filter type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
- G05D13/62—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover characterised by the use of electric means, e.g. use of a tachometric dynamo, use of a transducer converting an electric value into a displacement
-
- 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
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
-
- 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
- G01N2015/0019—Means for transferring or separating particles prior to analysis, e.g. hoppers or particle conveyors
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Automation & Control Theory (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to air particle concentration mensuration technical field, and in particular to a kind of particulate matter detector.It includes the cutter surveyed haze instrument body and be detachably connected with survey haze instrument body, and surveying haze instrument body includes surveying haze device and air pump；Surveying haze device includes surveying haze chamber, and survey haze chamber is used for the individual cavity that gas enters with one, surveys and the opening entered for gas and the opening discharged for gas are provided with haze chamber；Cutter be connected with surveying haze chamber and be used for the opening that gas enters, cutter for filter in gas be not particle diameter to be measured particle；Air pump is connected with haze chamber is surveyed for the opening that gas is discharged, and air pump is used to be pumped into after the cleaved device of gas in survey haze chamber；Survey and laser module and particulate matter receiving unit are also cooperatively provided with haze chamber, laser module is used for haze chamber emission measurement light beam is surveyed, and particulate matter receiving unit is used to receive light of the measuring beam after surveying the gas scattering in haze chamber.The present invention can be preferably to specified particle diameter in gas particle concentration detect.
Description
Technical field
The present invention relates to air particle concentration mensuration technical field, specifically, it is related to a kind of particulate matter detector.
Background technology
Contain the tiny particles content of various particle diameters such as various particulate matters, which part such as PM10, PM2.5, PM1.0 in air
Human body can be entered by human respiratory, this is very big to harm.Therefore the detection to particulate in air concentration
It is significant, but lacks a kind of easy to use and certainty of measurement preferably particle analyte detection product in the prior art.
The content of the invention
Present disclosure is to provide a kind of particulate matter detector, and it can overcome certain or some of prior art to lack
Fall into.
Particulate matter detector of the invention, it include surveying haze instrument body and with survey cutting of being detachably connected of haze instrument body
Cutter, surveying haze instrument body includes surveying haze device and air pump；Surveying haze device includes surveying haze chamber, and surveying haze chamber has one to enter for gas
Individual cavity, survey the opening and the opening for gas discharge for being provided with haze chamber and being entered for gas；Cutter and survey haze chamber
For the opening connection that gas enters, cutter be used to filter in gas be not particle diameter to be measured particle；Air pump is used with haze chamber is surveyed
In the opening connection of gas discharge, air pump is used to be pumped into after the cleaved device of gas in survey haze chamber；Survey at haze chamber also cooperatively
Laser generating assembly and particulate matter receiving unit are provided with, laser generating assembly is used for survey haze chamber emission measurement light beam, particulate matter
Receiving unit is used to receive light of the measuring beam after surveying the gas scattering in haze chamber.
In the present invention, cutter can preferably filter the particulate matter of non-measured object under test gas, and then can be compared with
Ensure the accuracy of measurement goodly, allowed the invention to preferably to various particle diameter models additionally by the cutter for changing different
The particle concentration for enclosing is detected.In addition, air pump preferably can be pumped into survey haze chamber under test gas, under test gas afterwards
Can be measured inside haze chamber surveying, and laser generating assembly and particulate matter receiving unit, located at surveying at haze chamber, this makes
Obtain when the particle concentration under test gas is measured, can effectively completely cut off the interference in the external world, and then can be preferable
Ground is measured to the particle concentration under test gas.
Preferably, laser generating assembly uses infrared laser generating assembly, infrared laser generating assembly is including being used for court
To the infrared laser pipe for surveying emission measurement light beam in haze chamber.
Preferably, the outboard chambers of infrared laser pipe are made as radiating tube with metal material.
Preferably, particulate matter receiving unit includes receiving sensor.
Preferably, receiving sensor and being provided with convex lens group between surveying haze chamber inside.The setting of convex lens group causes to receive
Sensor can preferably receive light of the measuring beam after surveying the gas scattering in haze chamber.
Preferably, surveying haze chamber place relative with laser generating assembly is provided with laser absorption component, laser absorption component is used for
Light of the absorptiometry light beam after surveying haze chamber, laser absorption component includes being capable of the absorption glass of absorptiometry light beam.Swash
Light absorbs component preferably can be absorbed to measuring beam by the remaining light after under test gas such that it is able to effectively be excluded
Because remaining light caused by refraction, reflection etc. because measuring interference, so as to preferably improve certainty of measurement.
Preferably, survey haze chamber to be used to be provided with filter for installation at the opening of gas discharge, filter for installation is used for surveying
Filtered into the gas at air pump in haze chamber.This enables that the particulate matter under test gas is preferably inhaled by filter for installation
Receive such that it is able to preferably air pump is protected, in addition, being entered by the particulate matter weight periodically to adhering in filter for installation
Row is calculated, additionally it is possible to preferably accuracy of detection is calibrated.
Preferably, survey in haze chamber being detected by a differential pressure pickup with the draught head by the gas after filter for installation
Rotating speed after treatment to air pump carries out feedback regulation.During due to using Laser Measuring haze, in order to obtain the measurement number of higher accuracy
Value is the need to ensure that under test gas are the property the entered detections under a constant flow velocity, on the one hand due to using open loop approach to gas
When the rotating speed of pump is controlled, in the process of running can there is fluctuation in rotating speed with air pump；On the other hand with filter for installation place
The change of attaching particles thing, it is impossible to which the flow velocity to surveying under test gas in haze chamber is adjusted preferably by the rotating speed of regulation and control air pump
Section；And the two aspects can all cause the deviation of numerical measuring, and by the draught head using filter for installation both sides to gas
The regulation and control of revolution speed, it becomes possible to preferably ensure that the flow velocity for surveying under test gas in haze chamber is able to maintain that in a relatively stable water
It is flat, therefore, it is possible to the accuracy of measurement of preferably deducting a percentage.
Preferably, air pump pumps out and pumps into gas by a sound-muffling box.So as to preferably reduce because of air pump operation
During gas flowing and produce noise.
Preferably, cutter includes airscoop shroud, airscoop shroud one end is provided with air inlet, and airscoop shroud is used to be used for survey haze chamber
The opening connection that gas enters；In airscoop shroud stainless steel substrates, nozzle, the first filter are sequentially provided with the direction that gas enters
Box and the second filtering film magazine, stainless steel substrates are used to filter the bulky grain debris in gas, the first filtering film magazine and the second filter
Box is used to filter the particle of specified particle diameter scope in gas.
Brief description of the drawings
Fig. 1 is the structural representation of the survey haze instrument in embodiment 1；
Fig. 2 is the exploded perspective view of the survey haze instrument in embodiment 1；
Fig. 3 is the schematic diagram of the cutter in embodiment 1；
Fig. 4 is the exploded perspective view of the cutter in embodiment 1；
Fig. 5 is used to install the schematic diagram of the side of cutter for the survey haze instrument body in embodiment 1；
Fig. 6 is cutter and the cooperation schematic diagram for surveying haze device in embodiment 1；
Fig. 7 is the schematic diagram of the survey haze device in embodiment 1；
Fig. 8 is the exploded perspective view of the infrared laser generating assembly in embodiment 1；
Fig. 9 is the exploded perspective view of the laser absorption component in embodiment 1；
Figure 10 is the schematic diagram of the particulate matter receiving unit in embodiment 1；
Figure 11 is the exploded perspective view of the particulate matter receiving unit in embodiment 1；
Figure 12 is the exploded perspective view of the filter for installation in embodiment 1；
Figure 13 is the schematic diagram of the filter for installation in embodiment 1；
Figure 14 is the schematic diagram of the sound-muffling box in embodiment 1；
Figure 15 is the exploded perspective view of the sound-muffling box in embodiment 1；
Figure 16 is the schematic diagram of the three-in-one sensor device in embodiment 1；
Figure 17 is the schematic diagram of the main circuit board in embodiment 1；
Figure 18 is the gas circuit connection diagram in embodiment 1；
Figure 19 is the another side schematic diagram of the survey haze instrument body in embodiment 1.
Specific embodiment
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.It should be understood that
, embodiment is only the present invention to be explained and and non-limiting.
Embodiment 1
Present embodiments provide it is a kind of survey haze instrument, its can preferably to air in such as PM1.0, PM2.5, PM10
The concentration of grain thing is detected.
As shown in figure 1, being the survey haze instrument structural representation in the present embodiment.It includes surveying haze instrument body 100, surveys haze instrument sheet
Cutter 1 is removably provided with body 100, by changing different types of cutter 1, you can preferably realize to different-grain diameter
The detection of particle concentration.
As shown in Fig. 2 being the exploded perspective view of the survey haze instrument in the present embodiment.
With reference to Fig. 3, Fig. 4 and Fig. 5, cutter 1 includes the airscoop shroud 14 of metal or plastic material, and the one end of airscoop shroud 14 is provided with
Filter material extension bar 13 can be as desired provided with air inlet, and air inlet.The other end of airscoop shroud 14 is rotatably connected in survey haze device 2
On, accordingly survey the interface structure being provided with haze instrument body 100 for coordinating with the other end of airscoop shroud 14.In airscoop shroud 14 certainly
Stainless steel substrates 15, the filtering film magazine 17, second of nozzle 16, first are sequentially provided with described one end to the direction of the other end to filter
Film magazine 18 and large sealing circle 19, cutter 1 are used to survey haze instrument using introducing after two stage cuttings to the particulate matter in air
In body 100.It is understood that be necessarily provided with sieve aperture on stainless steel substrates 15, sieve aperture can be filtered off in air substantially
Product impurity, particle etc., the first filtering film magazine 17 can carry out the cutting of first stage, the second filter to the particulate matter in air
Box 18 can carry out the cutting of second stage, and it will not be that the required particulate matter for detecting particle diameter enters that cutting essence described herein refers to
Row is filtered (cut) such that it is able to ensure to enter the particle that the air surveyed in haze instrument body 100 comprises only particle diameter to be measured substantially
Thing, and then preferably ensure that the accuracy of measurement data.
With reference to shown in Fig. 6 and Fig. 7, survey and survey haze device 2 is provided with haze instrument body 100, surveying the device of haze device 2 includes surveying haze chamber
22, surveying in haze chamber 22 has an individual cavity for being used for air entrance, and surveying can be provided with for installing cutter 1 at haze chamber 22
Opening, the opening for installing infrared laser generating assembly 27, the opening for installing laser absorption component 48, for install
The opening of grain thing receiving unit 26 and the bleeding point for forcing the cleaved inflow of device 1 of air to be surveyed inside haze chamber 22.Wherein, it is red
Outer laser generating assembly 27 and laser absorption component 48 can be oppositely arranged, particulate matter receiving unit 26 and infrared laser generation group
Part 27 is cooperatively set, and survey at haze chamber 22 is used for for forcing the cleaved device 1 of air to flow into the bleeding point surveyed inside haze chamber 22
It is connected with an air pump 31.
With reference to shown in Fig. 8, infrared laser generating assembly 27 includes first line plate 49, laser fixed seat 50, infrared laser
Pipe 51, radiating aluminum pipe 52 (radiating aluminum pipe 52 is simultaneously as the outboard chambers of infrared laser pipe 51), the first spring 53, the first lens
54th, lens fixed seat 55, the 4th sealing ring 56 and sealing ring fixture 57, the head of infrared laser pipe 51 pass through laser fixed seat 50
It is connected with first line plate 49, laser fixed seat 50 be connected with radiating aluminum pipe 52 one end, it is the first spring 53, the first lens 54, saturating
Mirror fixed seat 55, the 4th sealing ring 56 and sealing ring fixture 57 are installed in inside the radiating other end of aluminum pipe 52, the first lens
54 are connected with lens fixed seat 55, and the 4th sealing ring 56 is connected with sealing ring fixture 57.Infrared laser pipe 51 is red for producing
Outer light is irradiating particulate matter.Infrared laser pipe 51 is welded on first line plate after passing through laser fixed seat 50, laser fixed seat
50 are attached with radiating aluminum pipe 52 by way of screw thread or bayonet socket, and the first spring 53 puts into radiating aluminum pipe 52 from opposite side
Interior, the first lens 54 are put into lens fixed seat 55, and gluing is fixed, then by being such as threaded into radiating aluminum pipe 52
Interior, the 4th sealing ring 56 is enclosed within sealing ring fixture 57 or is placed in the bottom of sealing ring fixture 57, is placed in radiating aluminum pipe 52
On, then it is inserted into together in the corresponding aperture for surveying haze chamber, it is fixed by way of close-fitting, haze chamber side of testing oneself such as is inserted into behind position
Radiating aluminum pipe 52 is withstood with hexagon socket head cap screw without a head in face.
With reference to shown in Fig. 9, laser absorption component 48 includes absorption glass 33, sponge support 34, the 3rd sealing ring 38 and lid
Plate 20, absorption glass 33 is used to absorb infrared laser.Absorption glass 33 is put into the corresponding opening in survey haze chamber, places into sponge
Support 34 props up absorption glass 33, in order to avoid rocking, places into the 3rd sealing ring 38, finally covers the normal screws of cover plate 20 and consolidates
It is fixed.
With reference to shown in Figure 10 and Figure 11, particulate matter receiving unit 26 includes the second wiring board 58, receives sensor 59, two
Second 60, two, the lens sealing ring 61 of various sizes of lens fastener 601 and second, the second wiring board 58, receive sensor 59,
Two the second lens 60 and the second sealing ring 61 are connected with each other successively, and the second wiring board 58 is welded with sensor 59 is received.Second
60 groups of lens are used to amplify particulate matter and with optically focused effect, and receiving sensor 59 is used to receive by infrared laser generating assembly 27
The particulate matter through surveying in haze chamber that place launches scatter after light and processed.
With reference to shown in Figure 12 and Figure 13, surveying can also be provided with filter for installation 3 at haze chamber 22, and filter for installation 3 is located to be surveyed
Between haze chamber 22 and air pump 31.The one end of filter for installation 3 is connected with haze device 2 is surveyed, and the other end of filter for installation 3 connects with air pump 31
Connect.Wherein, filter for installation 3 includes two the first sealing rings 21, filter membrane box lower cover 23, filter membrane 24, filter membrane box covers 25, filter membrane
Lid plate 29, second spring 281 and screw 28, two the first sealing rings 21 are respectively arranged in survey haze device 2 and filter membrane lid plate
In 29, tentatively filter membrane box lower cover 23, filter membrane 24 and filter membrane box cover 25 are sequentially connected and form an independent component be referred to as filtering
Plate, screw 28 is inserted in after second spring 281 and filter membrane lid plate 29 is fixed at survey haze chamber 22, filter membrane lid plate 29 with survey haze chamber
The space for disposing filter plate (filter membrane case assembly) is formed between 22, and in the presence of second spring 281, filter membrane lid plate
29th, filter plate and survey haze chamber 22 can preferably overlay and then close fit.Wherein, filter membrane 24 is installed on filter membrane box lower cover 23 and filter
Between film box cover 25, screw 28 is inserted in second spring 281 and is connected with the bottom of filter membrane lid plate 29.When changing filter for installation 3 not
With tearing main circuit board 7 open, without tearing filter membrane lid plate 29 open, it is only necessary to from the fixed two holes insertion contact pin surveyed on haze chamber 22 down
Top, the bottom screw 28 of filter membrane lid plate 29 is flexible due to having covered second spring 281, can be backward loose, so that it may take out filter plate (filter membrane
Case assembly), it is very convenient to.
With reference to shown in Figure 14 and Figure 15, sound-muffling box 30 is additionally provided between air pump 31 and filter for installation 3, sound-muffling box 30 includes disappearing
Sound box cover 39, sound-muffling box lower cover 40, silica gel piece 41 and jump ring 42, silica gel piece 41 are located at noise reduction box cover 39 and sound-muffling box lower cover
Between 40, noise reduction box cover 39 and the edge of sound-muffling box lower cover 40 are equipped with corresponding draw-in groove button 431, draw-in groove button 431 and jump ring 42
Connection, the Main Function of sound-muffling box 30 is exactly noise reduction, can eliminate air pump 31 in the process of running because of the noise produced by air-flow.Its
In, air cavity is respectively formed between silica gel piece 41 and noise reduction box cover 39 and sound-muffling box lower cover 40 and air inlet and outlet is respectively used to.
Additionally, survey in haze instrument body 100 being additionally provided with three-in-one sensor device and five in one sensor device.Wherein, five
Unification sensor device includes five in one sensor body 6 and five in one sensor stand 32, and five in one sensor stand 32 is horizontal
To support five in one sensor body 6, formaldehyde, volatile organic matter, carbon dioxide can be detected, with sturdy and durable, performance is steady
The features such as determining.
With reference to shown in Figure 16, three-in-one sensor device includes three-in-one sensor body 4 and three-in-one sensor support
5, the cross-brace three-in-one sensor body 4 of three-in-one sensor support 5.Three-in-one sensor can measure nitrogen dioxide and two
Sulfur oxide, has the advantages that stable performance, high precision, highly reliable.
With reference to shown in Figure 17, survey and main circuit board 7 is additionally provided with haze instrument body 100, main circuit board 7 includes main circuit board body
71st, pressure sensor 72, differential pressure pickup 73 and Temperature Humidity Sensor 74, pressure sensor 72, differential pressure pickup 73 and warm and humid
Degree sensor 74 is installed on main circuit board body 71, and pressure sensor 72 and differential pressure pickup 73 are mutually corresponding.Main line
Plate 7 is exactly to allow whole detector energization normal work, and the flow velocity of air-flow is controlled by pressure sensor 72 and differential pressure pickup 73,
In it is uniformly entered detector.
With reference to shown in Figure 18, three-way pipe 46 is provided with filter for installation 3, the bore of 46 two ports of three-way pipe is different, makes
Obtain and different pressure differentials are formed in corresponding pipeline, its one end of three-way pipe 46 is located at filter for installation 3 for taking out
Go out to survey the gas in haze chamber 22, three-way pipe 46 secondly end is by the air inlet after one of air cavity of sound-muffling box 30 with air pump 31
Mouthful connection, the gas outlet of air pump 31 by being connected with a blast pipe 1810 after the other in which air cavity of sound-muffling box 30, blast pipe
1810 have access at three-in-one sensor body 4, so that three-in-one sensor device can enter when air-flow is sensed
Enter working condition.Three-way pipe 46 thirdly terminating at pressure sensor 72 and differential pressure pickup 73, while pressure sensor 72
Also accessed by pipeline with differential pressure pickup 73 and surveyed inside haze chamber 22 such that it is able to preferably to surveying in haze chamber 22 and by filtering
The air pressure and pressure difference of the gas after device device 3 detected, and at data feedback to the air pump 31 that can be detected, Jin Erneng
Enough flow velocitys for preferably stablizing air pump 31, this just preferably ensure that the gas surveyed in haze chamber 22 can have relatively stable stream
Speed, and then preferably ensure that the accuracy of DATA REASONING.
Survey haze instrument body 100 in the present embodiment also includes plastic casing, and plastic casing includes lower cover 35 and upper casing 10, under
Lid 35 is fixedly connected with upper casing 10.Screen display device includes screen circuit board 8, screen 9, Transparent frame 11 and shift knob 12,
Screen circuit board 8 is connected with screen 9, and screen 9 is fixed on the surface of upper casing 10 by Transparent frame 11, and shift knob 12 is installed on upper casing
On 10.
In addition, survey in haze instrument body 100 be additionally provided with cell apparatus, with reference to shown in Figure 19, cell apparatus include lithium battery 36,
Battery bracket 37 and USB charging heads 43, lithium battery 36 are installed on battery bracket 37, and lithium battery 36 is filled by USB charging heads 43
Electricity, screen circuit board 8 is powered by lithium battery 36.It is convenient that cell apparatus are charged by carrying with charging wire.
The present invention is run by air pump 31 and produces air-flow, the air of Particulate Inclusion thing is pumped into cutter 1, by two ranks
The cutting of section, enters the air for being substantially free of remaining (repelling with phase to be measured) particles things, and surveys in haze chamber 22.Then it is red
Outer laser generating assembly 27 irradiates particulate matter, and particulate matter receiving unit 26 amplifies particulate matter and receives calculating, specifically by
Infrared laser pipe 51 irradiates the particulate matter entered in survey haze device to come, then the second lens for passing through particulate matter receiving unit 26
60 amplify, then by receive sensor 59 receive calculate, computational methods be by laser irradiate projected area, weigh supplemented by
Help.Then can be adsorbed on filter for installation after particle analyte detection is complete, the filter membrane in filter for installation is removable to unload title particle down
The weight of thing.Do not allow particulate matter and enter into air pump 31 it can in addition contain play, protect air pump 31.Three-in-one sensor device and
Five in one sensor device device is connected on main circuit board 7 by socket, and detection data is shown finally by screen display device.
The mass figures of energy quick detection air of the invention, fast response time is conducive to grasping air quality in time, so that
Effectively improve furniture environment, or carry out protected working, with ageing and operability.It is convenient for carrying, it is simple to operate bright
, it is singlehanded just easily to control, detection work is carried out whenever and wherever possible, it is rationally strong to oneself according to different degrees of environmental pollution
The residence row suggestion of health.And by carrying with charging wire, USB charging heads charge and are more convenient, longevity of service, with good
Environmental suitability, it is applied widely.Cutter of the invention is fixed on the mode of rotation and is stuck on survey haze device, on survey haze chamber
Fixed screw unclamp slightly, then cutter is screwed into fixed screw clockwise, fixed screw is locked again after being screwed into position
Tightly, in order to avoid gas leakage.Other end absorption glass falls light absorbs after infrared laser irradiation of the present invention, in case light is fired back, such as
Fruit light reflects the detection that will influence particulate matter.The present invention is cased with second spring outside screw, realizes that filter is filled
Put and be locked on survey haze chamber, filter for installation is withstood by second spring, because filter for installation just needs to change after a while, directly
Connecing the thimble top professional from the hole surveyed on haze chamber and open filter membrane cover plate can just change filter for installation.
Schematical above that the present invention and embodiments thereof are described, the description does not have restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel enlightened by it, in the case where the invention objective is not departed from, is designed and the technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (10)
1. particulate matter detector, it is characterised in that：The cutter being detachably connected including survey haze instrument body and with survey haze instrument body,
Surveying haze instrument body includes surveying haze device and air pump；Haze device is surveyed including surveying haze chamber, survey haze chamber is used for the only of gas entrance with one
Vertical cavity, surveys the opening and the opening for gas discharge for being provided with haze chamber and being entered for gas；Cutter is used for haze chamber is surveyed
The opening connection that gas enters, cutter be used to filter in gas be not particle diameter to be measured particle；Air pump is used for gas with haze chamber is surveyed
The opening connection of body discharge, air pump is used to be pumped into after the cleaved device of gas in survey haze chamber；Survey and be also cooperatively provided with haze chamber
Laser generating assembly and particulate matter receiving unit, laser generating assembly are used for haze chamber emission measurement light beam is surveyed, and particulate matter is received
Component is used to receive light of the measuring beam after surveying the gas scattering in haze chamber.
2. particulate matter detector according to claim 1, it is characterised in that：Laser generating assembly is occurred using infrared laser
Component, infrared laser generating assembly is included for the infrared laser pipe towards emission measurement light beam in survey haze chamber.
3. particulate matter detector according to claim 2, it is characterised in that：The outboard chambers of infrared laser pipe are with metal material
Material is made as radiating tube.
4. particulate matter detector according to claim 1, it is characterised in that：Particulate matter receiving unit includes receiving sensing
Device.
5. particulate matter detector according to claim 4, it is characterised in that：Receive sensor and be provided between surveying haze chamber inside
Convex lens group.
6. particulate matter detector according to claim 1, it is characterised in that：Haze chamber place relative with laser generating assembly is surveyed to set
There is laser absorption component, laser absorption component is used for light of the absorptiometry light beam after surveying haze chamber, laser absorption component bag
Include the absorption glass for being capable of absorptiometry light beam.
7. particulate matter detector according to claim 1, it is characterised in that：Surveying haze chamber is used to be set at the opening of gas discharge
There is filter for installation, filter for installation is used to be filtered into the gas at air pump to surveying haze chamber.
8. particulate matter detector according to claim 1, it is characterised in that：Survey in haze chamber and by after filter for installation
The draught head of gas carries out feedback regulation by the rotating speed after a differential pressure pickup detection process to air pump.
9. particulate matter detector according to claim 1, it is characterised in that：Air pump pumps out and pumps into gas by a sound-muffling box
Body.
10. particulate matter detector according to claim 1, it is characterised in that：Cutter includes airscoop shroud, airscoop shroud one end
Air inlet is provided with, the opening that airscoop shroud is used to be used for gas entrance with survey haze chamber is connected；The direction entered in gas in airscoop shroud
On be sequentially provided with stainless steel substrates, nozzle, the first filtering film magazine and the second filtering film magazine, stainless steel substrates are used to filtering big in gas
Particle debris, the first filtering film magazine and the second filtering film magazine are used to filter the particle of specified particle diameter scope in gas.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016109598113 | 2016-10-28 | ||
| CN201610959811.3A CN106370575A (en) | 2016-10-28 | 2016-10-28 | High-precision detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106932320A true CN106932320A (en) | 2017-07-07 |
Family
ID=57893844
Family Applications (8)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610959811.3A Pending CN106370575A (en) | 2016-10-28 | 2016-10-28 | High-precision detector |
| CN201710196242.6A Pending CN106932320A (en) | 2016-10-28 | 2017-03-29 | Particulate matter detector |
| CN201720315963.XU Expired - Fee Related CN206648925U (en) | 2016-10-28 | 2017-03-29 | Filter for installation and particulate matter detector for particulate matter detector |
| CN201720315811.XU Expired - Fee Related CN206648922U (en) | 2016-10-28 | 2017-03-29 | Sound-muffling box and the particulate matter detector with the sound-muffling box |
| CN201720315830.2U Expired - Fee Related CN206648923U (en) | 2016-10-28 | 2017-03-29 | Survey haze system and include the particulate matter detector of the survey haze system |
| CN201710196183.2A Pending CN106979912A (en) | 2016-10-28 | 2017-03-29 | Survey haze system and include the particulate matter detector of the survey haze system |
| CN201720315940.9U Expired - Fee Related CN206648924U (en) | 2016-10-28 | 2017-03-29 | Survey haze device and include the particulate matter detector of the survey haze device |
| CN201710196244.5A Pending CN106979913A (en) | 2016-10-28 | 2017-03-29 | Survey haze device and include the particulate matter detector of the survey haze device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610959811.3A Pending CN106370575A (en) | 2016-10-28 | 2016-10-28 | High-precision detector |
Family Applications After (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720315963.XU Expired - Fee Related CN206648925U (en) | 2016-10-28 | 2017-03-29 | Filter for installation and particulate matter detector for particulate matter detector |
| CN201720315811.XU Expired - Fee Related CN206648922U (en) | 2016-10-28 | 2017-03-29 | Sound-muffling box and the particulate matter detector with the sound-muffling box |
| CN201720315830.2U Expired - Fee Related CN206648923U (en) | 2016-10-28 | 2017-03-29 | Survey haze system and include the particulate matter detector of the survey haze system |
| CN201710196183.2A Pending CN106979912A (en) | 2016-10-28 | 2017-03-29 | Survey haze system and include the particulate matter detector of the survey haze system |
| CN201720315940.9U Expired - Fee Related CN206648924U (en) | 2016-10-28 | 2017-03-29 | Survey haze device and include the particulate matter detector of the survey haze device |
| CN201710196244.5A Pending CN106979913A (en) | 2016-10-28 | 2017-03-29 | Survey haze device and include the particulate matter detector of the survey haze device |
Country Status (1)
| Country | Link |
|---|---|
| CN (8) | CN106370575A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339787A (en) * | 2017-07-11 | 2017-11-10 | 合肥康之恒机械科技有限公司 | A kind of auto purification environmental detection set |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692761B (en) * | 2017-04-12 | 2024-02-06 | 北京万生人和科技有限公司 | Air quality sampling detector |
| TWI667636B (en) * | 2017-08-21 | 2019-08-01 | 研能科技股份有限公司 | Apparatus having actuating sensor module within |
| CN111701523B (en) * | 2020-06-28 | 2022-06-14 | 中国兵器装备集团自动化研究所 | Kneading safety transmission device |
| CN112304828A (en) * | 2020-09-11 | 2021-02-02 | 安徽曼德克环境科技有限公司 | Raise dust on-line monitoring system |
| US11990022B2 (en) * | 2020-10-30 | 2024-05-21 | Honeywell International Inc. | Self-testing duct environment detector |
| CN114481339B (en) * | 2022-01-25 | 2023-02-28 | 武汉大学 | Metal oxide nanofiber sensor, preparation method thereof and application thereof in formaldehyde detection |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331395A (en) * | 2010-07-13 | 2012-01-25 | 苏州工业园区鸿基洁净科技有限公司 | Laser sensor and airborne particle counter with laser sensor |
| CN203376234U (en) * | 2013-05-06 | 2014-01-01 | 许楷楠 | Field oil smoke detection equipment |
| CN203518106U (en) * | 2013-10-21 | 2014-04-02 | 王全龄 | Haze pollutant removing device |
| CN204330540U (en) * | 2014-11-06 | 2015-05-13 | 北京中科诚毅科技发展有限公司 | A kind of particle quality concentration detector with self-purifying system |
| CN105092441A (en) * | 2014-05-14 | 2015-11-25 | 苏州元泰自动化科技有限公司 | Fine particle matter measuring device and measuring method |
| CN205047399U (en) * | 2015-10-25 | 2016-02-24 | 朱志艺 | Air pump with removable structure of trading of anechoic room |
| CN205317625U (en) * | 2015-12-25 | 2016-06-15 | 埃尔创利有限公司 | Sensor that PM2. 5 used in detection air |
| CN105738036A (en) * | 2016-02-01 | 2016-07-06 | 晋江知保企业管理咨询有限公司 | Sulfur hexafluoride gas leakage detector |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101564631B (en) * | 2009-05-18 | 2012-08-29 | 北京埃森恒业科技有限公司 | Smoke purification equipment and system thereof |
| CN104200605B (en) * | 2014-08-18 | 2017-06-23 | 鼎盛特安全预警技术(北京)有限公司 | A kind of aspirating smoke detection device |
| CN104297115B (en) * | 2014-09-26 | 2017-02-08 | 深圳职业技术学院 | Detection method for number density of atmospheric particulate matters PM2.5 |
| CN204203048U (en) * | 2014-11-04 | 2015-03-11 | 佛山市南华仪器股份有限公司 | A kind of stationary pollution source particle monitoring instrument optical table |
| CN104880392A (en) * | 2015-06-11 | 2015-09-02 | 南京信息工程大学 | PM2.5 (particulate matter 2.5) detection warning device and method |
| CN205096031U (en) * | 2015-10-15 | 2016-03-23 | 江苏鱼跃信息***有限公司 | Hush air atomizer |
| CN105352864A (en) * | 2015-11-20 | 2016-02-24 | 广东伟创科技开发有限公司 | On-line dust measuring instrument based on light scattering |
-
2016
- 2016-10-28 CN CN201610959811.3A patent/CN106370575A/en active Pending
-
2017
- 2017-03-29 CN CN201710196242.6A patent/CN106932320A/en active Pending
- 2017-03-29 CN CN201720315963.XU patent/CN206648925U/en not_active Expired - Fee Related
- 2017-03-29 CN CN201720315811.XU patent/CN206648922U/en not_active Expired - Fee Related
- 2017-03-29 CN CN201720315830.2U patent/CN206648923U/en not_active Expired - Fee Related
- 2017-03-29 CN CN201710196183.2A patent/CN106979912A/en active Pending
- 2017-03-29 CN CN201720315940.9U patent/CN206648924U/en not_active Expired - Fee Related
- 2017-03-29 CN CN201710196244.5A patent/CN106979913A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331395A (en) * | 2010-07-13 | 2012-01-25 | 苏州工业园区鸿基洁净科技有限公司 | Laser sensor and airborne particle counter with laser sensor |
| CN203376234U (en) * | 2013-05-06 | 2014-01-01 | 许楷楠 | Field oil smoke detection equipment |
| CN203518106U (en) * | 2013-10-21 | 2014-04-02 | 王全龄 | Haze pollutant removing device |
| CN105092441A (en) * | 2014-05-14 | 2015-11-25 | 苏州元泰自动化科技有限公司 | Fine particle matter measuring device and measuring method |
| CN204330540U (en) * | 2014-11-06 | 2015-05-13 | 北京中科诚毅科技发展有限公司 | A kind of particle quality concentration detector with self-purifying system |
| CN205047399U (en) * | 2015-10-25 | 2016-02-24 | 朱志艺 | Air pump with removable structure of trading of anechoic room |
| CN205317625U (en) * | 2015-12-25 | 2016-06-15 | 埃尔创利有限公司 | Sensor that PM2. 5 used in detection air |
| CN105738036A (en) * | 2016-02-01 | 2016-07-06 | 晋江知保企业管理咨询有限公司 | Sulfur hexafluoride gas leakage detector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339787A (en) * | 2017-07-11 | 2017-11-10 | 合肥康之恒机械科技有限公司 | A kind of auto purification environmental detection set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN206648922U (en) | 2017-11-17 |
| CN206648923U (en) | 2017-11-17 |
| CN206648925U (en) | 2017-11-17 |
| CN106979912A (en) | 2017-07-25 |
| CN106370575A (en) | 2017-02-01 |
| CN106979913A (en) | 2017-07-25 |
| CN206648924U (en) | 2017-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206648923U (en) | Survey haze system and include the particulate matter detector of the survey haze system | |
| US10184880B2 (en) | Airborne particle measuring device | |
| CN206670685U (en) | A kind of air quality sample testing meter | |
| CN103196775B (en) | The sampling of atmospheric particulate matter concentration by gravimetric on-line monitoring, meausring apparatus and method | |
| US20160258916A1 (en) | Gas processing device with noise dampening | |
| CN205280708U (en) | Portable air quality detector | |
| CN108692761A (en) | A kind of air quality sample testing meter | |
| CN2847297Y (en) | Single gas detector using infrared light source based on optoacoustic principle | |
| CN106979932A (en) | A kind of gas cell of variable light path | |
| CN110383032A (en) | Portable moisture analyzer for natural gas | |
| CN205844178U (en) | Device based on TDLAS detection multiple gases | |
| CN206804481U (en) | Particulate matter detector | |
| CN206177762U (en) | Constant temperature particulate matter determination appearance | |
| CN106092895A (en) | A kind of water body chlorophyll concentration in situ detection device and detection method thereof | |
| CN206161462U (en) | Atmosphere particulate matter detection device | |
| CN205844122U (en) | A kind of for testing diluent and the test device of raw material solvent rate of volatilization | |
| CN206772815U (en) | A kind of gas cell of variable light path | |
| CN205941350U (en) | Matter ration short -term test appearance is decided to gaseous, liquid based on linear graduated filter | |
| CN206563696U (en) | A kind of Multifunctional particulate matter detector | |
| CN209961656U (en) | Dust concentration detection device based on multi-angle collected image | |
| CN113252595B (en) | Intelligent detector is synthesized in environmental protection of boiler efficiency | |
| CN206410975U (en) | A kind of particulate matter detection means and its system | |
| CN206208702U (en) | A kind of detector of quick measure air pollutants | |
| CN207408299U (en) | For detecting the portable fast detector of fumigant | |
| KR20140142541A (en) | Moisture transmission testing instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170707 |