CN110455692A - A kind of mechanism for monitoring and monitoring method of atmosphere particle concentration - Google Patents
A kind of mechanism for monitoring and monitoring method of atmosphere particle concentration Download PDFInfo
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- CN110455692A CN110455692A CN201910749659.XA CN201910749659A CN110455692A CN 110455692 A CN110455692 A CN 110455692A CN 201910749659 A CN201910749659 A CN 201910749659A CN 110455692 A CN110455692 A CN 110455692A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 75
- 239000002245 particle Substances 0.000 title claims abstract description 44
- 230000007246 mechanism Effects 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims description 20
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 230000005250 beta ray Effects 0.000 claims description 42
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 6
- 238000005538 encapsulation Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 13
- 239000003570 air Substances 0.000 description 26
- 239000013618 particulate matter Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000011358 absorbing material Substances 0.000 description 4
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- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
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- 230000005693 optoelectronics Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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- 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
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Abstract
The present invention provides a kind of mechanism for monitoring of atmosphere particle concentration, and the mechanism for monitoring includes thief rod and monitoring host, and the monitoring host includes: cabinet；Driving device, the driving device include port moving cell and paper tape moving cell；Sealing device；Volume control device；Detection device；Wherein, the port moving cell includes first motor, eccentric shaft, offers the lifting unit for being connected to the thief rod, the shaft of the connection first motor of one end of the eccentric shaft, the other end connects the lifting unit, and the first motor drives the port of the lifting unit and the paper tape of the paper tape moving cell to be contacting and separating by the eccentric shaft.The mechanism for monitoring of the atmosphere particle concentration provided according to the present invention is simple and compact for structure, small without allophone, load, and measurement is convenient.
Description
Technical field
The invention belongs to atmosphere particle monitoring technical field more particularly to a kind of mechanism for monitoring of atmosphere particle concentration
And its monitoring method.
Background technique
In recent years, along with urbanization, the continuous propulsion of process of industrialization, Atmospheric particulates, which have become, influences China city
The primary pollutant of ambient air quality, especially spring floating dust weather, crop straw burning phase in autumn and winter heating period.Particulate matter
Refer mainly to pellet (PM10 i.e. equivalent aerodynamic diameter is less than or equal to 10 μm of particulate matter) and fine particle
(PM2.5, that is, equivalent aerodynamic diameter is less than or equal to 2.5 μm of particulate matter), it is divided into primary particulate and secondary aerosol species.
Monitor is inconvenient to carry on the market at present, and test process has allophone, load big due to generation relative friction,
And structure is complicated.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of prisons of atmosphere particle concentration
Mechanism and monitoring method are surveyed, for solving many disadvantages in the mechanism for monitoring of atmosphere particle concentration in the prior art.
In order to achieve the above objects and other related objects, the invention discloses a kind of monitoring machines of atmosphere particle concentration
Structure, the mechanism for monitoring include thief rod and monitoring host, and one end of the thief rod connects the atmosphere, and the other end connects institute
Monitoring host is stated, the monitoring host includes: cabinet；Driving device is located in the cabinet, and the driving device includes port
Moving cell and paper tape moving cell, are used to form gas circuit；Sealing device is located in the cabinet, seals the gas circuit with shape
At the gas circuit of connection；Volume control device connects the gas circuit, for controlling flow of the Atmospheric particulates in the gas circuit；
Detection device connects the driving device, detects the concentration of the Atmospheric particulates；Wherein, the port moving cell includes
First motor, eccentric shaft, the lifting unit for being connected to the thief rod, the connection first motor of one end of the eccentric shaft
Shaft, the other end connect the lifting unit, and the first motor drives the port of the lifting unit by the eccentric shaft
It is contacting and separating with the paper tape of the paper tape moving cell.
In a specific embodiment disclosed by the invention, the lifting unit includes fixed part and movement portion, it is described partially
The mandrel other end connects the fixed part, and the fixed part and the movement portion are sequentially connected, the fixed part and the movement
There is the sealing device between portion.
In a specific embodiment disclosed by the invention, the eccentric shaft has eccentric cylinder with both ends for end
Elliptic cylindrical eccentric shaft.
In a specific embodiment disclosed by the invention, the paper tape moving cell includes paper tape, the second motor, and
The first tep reel and the second tep reel of paper tape described in support, shaft connection second motor of first tep reel, described second
Tep reel and first tep reel are sequentially connected.
In a specific embodiment disclosed by the invention, the detection device includes β ray detector units；At data
Unit is managed, the β ray detector units are connected；Wherein, the β ray detector units include the β intracavitary positioned at the movement portion
Ray irradiation source and the β ray being oppositely arranged with β ray irradiation source receive measuring unit, and β ray irradiation source and the β are penetrated
Line receives and places the paper tape between measuring unit.
In a specific embodiment disclosed by the invention, there is the sealing device in the detection device.
In a specific embodiment disclosed by the invention, the sealing device is O-ring.
In a specific embodiment disclosed by the invention, the mechanism for monitoring further includes dynamic heating device, described dynamic
State heating device is set on the thief rod, for heating to the Atmospheric particulates.
The present invention also discloses a kind of monitoring method of atmosphere particle concentration, as described above big the method includes using
The mechanism for monitoring of aerated particle object concentration monitors the concentration of the Atmospheric particulates.
The present invention provides a kind of mechanism for monitoring of atmosphere particle concentration and monitoring method, what is provided according to the present invention is big
The mechanism for monitoring of aerated particle object concentration, the driving device drive the port moving cell and paper tape using the rotation of eccentric shaft
When the characteristics of moving cell is contacting and separating, the i.e. eccentric shaft rotation 180 degree, the port is contacted with paper tape, when turning again
Dynamic 180 all spend, that is, rotate 360 degree, return to original position, and the port and paper tape are separate, and drive port by the eccentric shaft
It moves up and down, avoids and produce relative sliding friction, eliminate noise, movement is laborsaving, high-efficient, in addition, atmosphere of the invention
The mechanism for monitoring of particle concentration, simple and compact for structure, small without allophone, load, measurement is convenient.Other features, benefit and excellent
It will definitely be apparent by the disclosure detailed in this article including description and claims.
Detailed description of the invention
Fig. 1 is shown as the structural schematic diagram of one specific embodiment of mechanism for monitoring of atmosphere particle concentration of the invention.
Fig. 2 is shown as the main view of the mechanism for monitoring in Fig. 1.
Fig. 3 is shown as Blocked portion frame composition figure in Fig. 2.
Fig. 4 is shown as the structural schematic diagram of a specific embodiment of the eccentric shaft in mechanism for monitoring of the invention.
Fig. 5 is shown as the top view of the mechanism for monitoring in Fig. 1.
Fig. 6 is shown as the left view of the mechanism for monitoring in Fig. 1.
Fig. 7 is shown as the process signal of one specific embodiment of monitoring method of atmosphere particulate matter monitoring instrument of the invention
Figure.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off
The content shown is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, it should all still fall in disclosed technology contents and obtain the model that can cover
In enclosing.Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be also only
Convenient for being illustrated for narration, rather than to limit the scope of the invention, relativeness is altered or modified, in no essence
It changes under technology contents, when being also considered as the enforceable scope of the present invention.
Fig. 1 to Fig. 6 is please referred to, the present invention provides an a kind of specific embodiment party of the mechanism for monitoring of atmosphere particle concentration
Formula.The mechanism for monitoring of atmosphere particle concentration of the invention, it is described outstanding for detecting aerosol concentration contained in air
Floating particle is, for example, PM2.5 Atmospheric particulates or PM10 Atmospheric particulates.
Specifically, Fig. 1 and Fig. 2 are please referred to, the mechanism for monitoring of the atmosphere particle concentration includes: thief rod 1 and monitoring
Host 100.One end of the thief rod 1, for example, air inlet, is connected to the atmosphere, the other end, i.e. gas outlet connect the prison
Survey host 100.There is no particular limitation for the shape and material of thief rod 1, such as tubular glass, described big for acquiring and conveying
In aerated particle object to monitoring host computer 100, further, such as stainless steel part is arranged with outside thief rod 1, to the thief rod 1
It is protected.
Further, the top of the thief rod 1 can be equipped with a cutting head (not shown), actually use
Different-grain diameter can be cut by replacing the type (such as PM10, PM2.5, TSP) of cutting head 1 in journey, test different-grain diameter
The concentration of Atmospheric particulates.
Please referring next to Fig. 1 to Fig. 6, the monitoring host computer 100 includes cabinet 101, driving device, sealing device, flow
Control device and detection device, for receiving and obtaining the concentration of the Atmospheric particulates from institute's thief rod 1.
Please referring next to Fig. 1, the top of the cabinet 101 offers the opening for connecting the thief rod outlet side, described
There is no particular limitation for the material and shape of cabinet 101, such as the shell with some strength and rigidity, for accommodating the drive
Dynamic device and the detection device, specifically, cabinet, the plastic box body that for example, steel casts cabinet, steel plate welds.For the ease of device
The installation and removal of part, cabinet 101 can form for dismountable plate, pass through the splicing such as bolt, fastener between each plate.This
The mechanism for monitoring for inventing the atmosphere particle concentration provided is small-sized assembly machine, easy to carry and transport, the ruler of the cabinet 101
It is very little that there is the length of such as 40-80-70cm, the height of the width of 40-80cm, 40-80cm.
Please referring next to Fig. 1 to Fig. 6, the driving device is located in the cabinet 101, including port moving cell and paper
Band moving cell, by being contacting and separating for the port moving cell and the paper tape moving cell, formation is for following institute
The gas circuit that the detection device stated is detected.Specifically, in a specific embodiment disclosed by the invention, the port movement
Unit includes first motor 201, eccentric shaft 202, offers the fixed part 203 for being connected to the first gas circuit of the thief rod 1, and
The movement portion 204 of the second gas circuit corresponding with the first gas circuit, 204 bottom of movement portion have port.The eccentric shaft 202
One end, such as pilot hole, connect the shaft of the first motor 201, and the other end connects the fixed part 203, the fixed part
203 are sequentially connected with the movement portion 204.In addition, the paper tape movement is single in a specific embodiment disclosed by the invention
First tep reel 207 and second tep reel 208 of the member including paper tape 206 described in the second motor 205, paper tape 206 and support, it is described
Shaft 207a connection second motor 205 of first tep reel 207, second tep reel 208 are driven with first tep reel 207
Connection.
It should be noted that the first motor 201 and the second motor 205, are not particularly limited, such as pawl can be used
Pole motor passes through the first optoelectronic switch being arranged in the cabinet 101 and the second optoelectronic switch (not shown) control respectively
Make the rotation step number of the first motor 201 and the second motor 205.
Referring to Fig. 4, the eccentric shaft 202 includes shaft 2020, position in a specific embodiment disclosed by the invention
End 2021a, 2021b in the shaft 2020, and the off-centre operation being separately positioned on described end 2021a, 2021b
Cylinder 2022a, 2022b, such as can also be elliptic cylindrical, one end of the shaft 2020 passes through the end 2021a, and
Wildcard hole 2023 is offered, for connecting the shaft of the first motor 201, the other end of the shaft 2020 connects the end
Portion 2021b.Described eccentric cylinder 2022a, 2022b are located at the position on the end top 2021a, 2021b, eccentric cylinder
The 2022b connection lifting unit being for example made of fixed part 203 and movement portion 204, when the first motor 201 rotates
When, the eccentric shaft 2020 drives lifting unit to move up and down, and specifically, when rotating 180 degree, utilizes eccentric cylinder 2022b
In the position on the end surface 2021b, i.e. the distance between the bottom of the bottom of eccentric cylinder 2022b and end 2021b, so that
The lifting unit moves downward, and contacts with the paper tape moving cell, i.e., port is contacted with paper tape 206；When first electricity
Machine 201 rotates 180 degree again, that is, rotates 360 degree, and eccentric shaft 202 returns to original position, so that the lifting unit moves upwards, with
The paper tape moving cell separation, i.e., port 2041 is separated with paper tape.The monitoring machine of atmosphere particle concentration provided by the invention
Port moving cell in the driving device of structure using 202 rotation of eccentric shaft and drives lifting unit to move up and down, so that described
Port moving cell is contacting and separating with the paper tape moving cell.
Fig. 1 and Fig. 5 are please referred to, further, in the cabinet 101, a fixed plate 102 is set, cabinet 1 is divided for outside
Unit and inside cell, the device for being easily installed and fixing in the monitoring host 100.The first motor 201, which is located at, fixes
The side of plate 102, i.e. inside cell, such as the lifting unit being made of fixed part 203 and movement portion 204 are located at fixed plate 102
The other side, i.e. outer cells, the eccentric shaft 202 connects the fixed part of the lifting unit through the fixed plate 102
203.Further, multiple brackets are installed in the fixed plate 102, are used to support first motor 201, eccentric shaft 202, lifting
Fixed part 203 and movement portion 204 on unit.
Please refer to figure 2 to Fig. 3 and Fig. 5, in a specific embodiment disclosed by the invention, the fixed part
203 and movement portion 204 form lifting unit.The fixed part 203 is for example fixed in the fixed plate 102, the fixed part
The through-going recess for connecting the first eccentric cylinder 2022b on the eccentric shaft 202, the fixation are offered on 203 end face
The first gas circuit for being connected to the thief rod 1 is offered in portion 203, for receiving and conveying the Atmospheric particulates from thief rod 1.
The movement portion 204 is movably connected in the fixed plate 102, and is sequentially connected with the fixed part 203, such as described solid
Determine portion 203 to be sequentially connected equipped with driving shaft and by the driven shaft on shaft coupling and the movement portion 204, drives the movement
Portion 204 moves up and down with the rotation of eccentric shaft 202, offers corresponding with the first gas circuit second in the movement portion 204
Gas circuit, for receiving and conveying the Atmospheric particulates from the first gas circuit.Between the fixed part 203 and the movement portion 204
With the first sealing device 301, the gas circuit between fixed part 203 and the movement portion 204 is sealed, so that
The gas circuit of connection is formed in lifting unit lifting process.It should be appreciated that being only the specific implementation for listing lifting unit here
Mode, it is any can be realized the lifting unit that the port moving cell and the paper tape moving cell are contacting and separating should all
When covering within the scope of the claimed invention.
Turning back to refering to fig. 1, Fig. 2 and Fig. 5, in a specific embodiment disclosed by the invention, second motor 205
Positioned at the side of fixed plate 102, i.e. inside cell, paper tape 206, the first tep reel 207 and the second tep reel 208 are located at fixed plate
The shaft of 102 other side, i.e. outer cells, first tep reel 207 connects second motor through the fixed plate 102
205.Further, multiple brackets are installed in the fixed plate 102, are used to support the second motor 205, paper tape 206, first band
Disk 207 and the second tep reel 208.
It should be noted that the paper tape 206 is for example, by using in 50-100g/m2Glass fibre membrane or quartz in range
Film for being enriched with the Atmospheric particulates from the thief rod 1 and port moving cell, and is detection device as described below
Direct test object is provided.
Turning back to referring to Fig.2, first tep reel 207 and the second tep reel 208, are used for support paper tape 206, the first band
The shaft of disk 207 connects second motor 205, and second tep reel 208 is sequentially connected with first tep reel 207.For example,
Second tep reel 208 is mounted in the fixed plate 102 by shaft 208a, is freely rotated in the fixed plate 102, institute
The shaft 207a for stating the first tep reel 207 is sequentially connected by the shaft 2028a on paper tape 206 and second tep reel 208.Second
Motor 205 controls the first tep reel 207 and the paper tape 206 on second tep reel 208 is collected winding, that is, so that the paper
It is moved in the port on the lifting unit of port moving cell and between detection device with 206.
Please refer to figure 2, to ensure that paper tape 206 will not be deformed during releasing or collection because gravity influences,
In a concrete mode disclosed by the invention, one is equipped in the position of the lifting unit sustained height of the driving device
Support wheel 206a, for smoothly introducing paper tape 206 at the lifting unit of the driving device.
When carrying out the monitoring results of atmosphere particle concentration, the starting of the second motor 205 rotation, second tep reel
208 rotate with the rotation of the first tep reel 207, drive the blank tape on second tep reel 208 to move forward, and at one
In measurement period, blank tape is fixed, and the data of the blank tape are detected through detection device as described below；Then described
The starting rotation of one motor 201, the lifting unit of the port moving cell move downward, and the port contacts the plain pape
Band, and the gas circuit to form connection is sealed through the sealing device, the control then through volume control device as described below is described
Blank tape absorption is from the Atmospheric particulates being connected in the thief rod 1, and the first motor 201 rotates again, the gas
The lifting unit of mouth moving cell moves upwards, and the port leaves the paper tape for having adsorbed Atmospheric particulates, and gas circuit disconnects, and passes through
Detection device as described below carries out the concentration that detection obtains the Atmospheric particulates, and a measurement period terminates at this time, described
Second motor 205 rotates again, and the paper tape after the absorption moves on, and on the first tep reel 207, while driving second
Next section of blank tape on tep reel 208 advances, and enters next measurement period.
Referring to Fig. 3, the sealing device is located in the cabinet 101, it is used to form the gas circuit of connection, specifically, In
A specific embodiment disclosed by the invention, the sealing device have first sealing device 301 and the second sealing device 302,
It is located in the driving device and detection device, the gas circuit of the disengaging monitoring host 100 of the Atmospheric particulates is carried out
Sealing, forms the gas circuit of connection.Specifically, the first sealing device 301 is located at the lifting unit in the driving device
Between fixed part 203 and movement portion 204, during the lifting unit moves downward, the movement portion 204 is far from fixed
Portion 203, the port contact paper tape, and 301 Expansion sealing of first sealing device is sealed epicoele, gas circuit connection；Described
During lifting unit moves upwards, the movement portion 204 is close to fixed part 203, and for the port far from paper tape, gas circuit is disconnected
It opens, first sealing device 301 is compressed.Second sealing device 302 is located at the lower end of the detection device, thus to cavity of resorption into
Row sealing.
It should be noted that the first sealing device 301 and the second sealing device 302 are, for example, identical or different O
Type sealing ring, such as the O-ring of foaming, the sealing ring is for example with 5mm-20mm diameter.It is to be understood that described first is close
Seal apparatus 301 and/or the second sealing device 302 include but is not limited to O-ring seal, and any driving device that can be realized is in atmosphere
The sealing device of the gas circuit of formation connection in the measurement process of particle concentration should all be covered claimed
In range.
Please referring next to Fig. 5 and Fig. 6, the volume control device connects the gas circuit, exists for controlling Atmospheric particulates
Flow in the gas circuit.The volume control device includes air pump (not shown) and the flow for being fixed on air pump air inlet
Valve 401, flow sensor (not shown), flowmeter (not shown), air pump are for example external in the attached of monitoring host 100
Closely, flow valve is located in the inside cell of the fixed plate 102 of the monitoring host 100, and passes through valve pipe and the monitoring host
Gas outlet 402 on 100 is connected to, and then connects the gas circuit, is evacuated through air pump to system.Flow valve is for example using bias
Take turns flow valve.In the mechanism for monitoring of atmosphere particle concentration provided by the invention, the volume control device is to from entire
The gas circuit of system carries out intermittent pumping, when being monitored operation, forms measurement period, such as when air pump is not evacuated, particle
Object does not flow, when air pump is evacuated, Atmospheric particulates according to scheduled flow, such as 1-10L/min, to the direction of paper tape 206 into
Row flowing, the Atmospheric particulates are supported on 206 surface of institute's paper tape, and system is discharged through air pump in the gas.
When carrying out the monitoring results of atmosphere particle concentration, in a measurement period, blank tape is fixed, and air pump closes
It closes, air pump is not evacuated, and the detection device detects blank tape, obtains the first monitoring concentration；The port movement is single
The lifting unit of member moves downward, and the port contacts the blank tape, and seals to form connection through the sealing device
Gas circuit, air pump starting, air pump pumping, the Atmospheric particulates in the gas circuit for being connected to the thief rod 1 are enriched in the blank
On paper tape, after air pump is closed, the port leaves the blank tape, paper tape of the detection device to absorption Atmospheric particulates
It is detected, obtains the second monitoring concentration, the concentration of the Atmospheric particulates is obtained through preset ratio relation.
Please refer to figure 2, and the detection device connects the driving device, for detecting and obtaining Atmospheric particulates
Concentration.In a specific embodiment disclosed by the invention, the detection device includes the β intracavitary positioned at the movement portion 204
The β ray that ray irradiation source 501, β ray irradiation source are oppositely arranged receives measuring unit 502 and data processing unit (in figure
It is not shown).
Turning back to refering to Fig. 2 and Fig. 3, in a specific embodiment disclosed by the invention, by β ray irradiation source 501
Measuring unit 502 is received with the β ray being oppositely arranged with β ray irradiation source and forms β ray detector units, through the β ray method
Monitor the concentration of the Atmospheric particulates.The movement portion 204 that β ray irradiation source 501 is set to the driving device is intracavitary,
Close to second gas circuit.β ray irradiation source 501 and with β ray receive measuring unit 502 be oppositely arranged, therebetween place
The paper tape 206.The β ray that β ray irradiation source 501, β ray irradiation source are oppositely arranged receives measuring unit 502 and paper
It is remained unchanged with the relative position between 206, measuring condition is consistent twice.
Specifically, when β ray passes through certain thickness absorbing material, intensity increases with absorber thickness and gradually subtracts
It is weak, it generates β and absorbs, when the range of the thickness of absorbing material ratio β particle is much smaller, absorption of the β ray in substance is approximate
Are as follows:
In formula, I0Intensity when for no absorbing material, I are that β ray passes through with a thickness of tmAbsorbing material after intensity,
umReferred to as mass-absorption coefficient, unit cm2/ g, tmReferred to as mass thickness, unit g/cm2,
Intensity I when β ray passes through paper tape 206 under detection device records1, it is obtained by formula (1):
Then, gas circuit is acquired by thief rod 1 through volume control device and is pumped into a certain amount of air, Atmospheric particulates enrichment
On the paper tape；
Then, intensity I2 when β ray passes through filter paper under detection device records is obtained by formula (2):
In formula, the unit of Δ m is the mass thickness g/m3 of Atmospheric particulates, when the testing conditions are consistent, I0
It remains unchanged in entire measurement process, is obtained by formula (2) and (3):
Δ m through the data processing unit calculates the sky that is, Atmospheric particulates contain metric density in every cubic metres of air
The concentration of Atmospheric particulates in gas and display.
Specifically, data processing unit includes collector, processor, memory, circuit control system and display
503；Collector input terminal is connect with the output end that β ray receives measuring unit 502, and acquisition β ray receives measuring unit 502
Electric signal, the input terminal of the output end connection processor of collector, measurement data that treated are stored through the output end of processor
In in first memory；Memory connects display, shows the measurement result.
Please refer to figure 2 and Fig. 3, when carrying out the monitoring results of atmosphere particle concentration, in a measurement period,
Blank tape is fixed, and the lifting unit of the port moving cell moves downward, and the port contacts the blank tape, and passes through
The sealing device seals the gas circuit to form connection, the control then through volume control device as described below, by the atmosphere
Particulate matter is enriched in the surface of the paper tape 206, and then the paper tape 206 is successively irradiated in β ray irradiation source 501 respectively,
Dust spot is formed, and measuring unit 502 is received by β ray and is received, and is transferred to the data processing unit, and then obtains the sky
The concentration of Atmospheric particulates in gas.
Turning back to refering to fig. 1, the mechanism for monitoring of the atmosphere particle concentration further includes dynamic heat system, the dynamic
Heating system includes the dynamic heat device (not shown) being fixed on thief rod 1, warm and humid for monitoring air in thief rod 1
The aerial temperature and humidity data of degree, dynamic heat device detection are transmitted to detection device and control its heating work by detection device,
The starting of dynamic heat device is such as controlled, closes, adjust heating power.
Referring to Fig. 7, invention also discloses a kind of monitoring method of the atmosphere particle concentration in air, the method
It include: step S1-S2.
Step S1 provides the mechanism for monitoring of the atmosphere particle concentration.
Step S2, as the atmosphere particle concentration mechanism for monitoring with the atmosphere in air described in certain flow collection
Particulate matter, and calculate the concentration of the Atmospheric particulates in the air.
Specifically, in one cycle, paper tape is fixed: the port of port moving cell is located at original position, and far from the paper
Blank tape with moving cell, the air pump are closed, and the detection device irradiating and detecting blank tape surface takes and measures surface
Data receive measuring mechanism as detection data, such as by β ray irradiation source and β ray to obtain detection data, i.e. β ray
Intensity I when passing through blank tape1。
The port of port moving cell contacts the paper tape 206 of the paper tape moving cell, air pump starting, makes gas from flowing through
After thief rod 1 enters monitoring host 100, paper tape 206 is sequentially passed through, is enriched in Atmospheric particulates in the region of detection,
And via air pump be evacuated discharge monitoring host 100 after.
The port of port moving cell is positioned at original position, and the blank tape far from the paper tape moving cell, the air pump
It closes, the detection device irradiating and detecting is enriched with the paper tape surface of Atmospheric particulates, takes and measure surface data as testing number
According to, such as measuring mechanism received to obtain detection data by β ray irradiation source and β ray, i.e. β ray is by being enriched with atmosphere
Intensity I when the paper tape of particulate matter2。
According to preset ratio relation is stored in the data processing unit, i.e.,Meter
The concentration of the Atmospheric particulates in the air is calculated, shows measurement result.
This hair keeps the height of detection device in predetermined period by the mechanism for monitoring of the atmosphere particle concentration provided
Spend it is constant, and by control volume control device, detected at unadsorbed blank tape respectively at the same position of paper tape
Spot intensity and the spot intensity at the paper tapes of Atmospheric particulates is adsorbed, has completed the test period.Detection in this way
Method, tests sensitive, conveniently, and data are reliable.
In conclusion the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (9)
1. a kind of mechanism for monitoring of atmosphere particle concentration, which is characterized in that the mechanism for monitoring includes thief rod and monitoring master
Machine, one end of the thief rod connect the atmosphere, and the other end connects the monitoring host, and the monitoring host includes:
Cabinet；
Driving device is located in the cabinet, and the driving device includes port moving cell and paper tape moving cell, is used for shape
At gas circuit；
Sealing device is located in the cabinet, seals the gas circuit to form the gas circuit of connection；
Volume control device connects the gas circuit, for controlling flow of the Atmospheric particulates in the gas circuit；
Detection device connects the driving device, detects the concentration of the Atmospheric particulates；
Wherein, the port moving cell include first motor, eccentric shaft, the connection thief rod lifting unit, it is described partially
The shaft of the connection first motor of one end of mandrel, the other end connect the lifting unit, and the first motor passes through institute
Stating eccentric shaft drives the port of the lifting unit and the paper tape of the paper tape moving cell to be contacting and separating.
2. the mechanism for monitoring of atmosphere particle concentration according to claim 1, it is characterised in that: the lifting unit includes
Fixed part and movement portion, the eccentric shaft other end connect the fixed part, and the fixed part and the movement portion are sequentially connected,
There is the sealing device between the fixed part and the movement portion.
3. the mechanism for monitoring of atmosphere particle concentration according to claim 1 or 2, which is characterized in that the eccentric shaft is
End has the eccentric shaft of eccentric cylinder.
4. the mechanism for monitoring of atmosphere particle concentration according to claim 1, it is characterised in that: the paper tape moving cell
The first tep reel and the second tep reel including paper tape described in paper tape, the second motor and support, the shaft connection of first tep reel
Second motor, second tep reel and first tep reel are sequentially connected.
5. the mechanism for monitoring of atmosphere particle concentration according to claim 1, it is characterised in that: the detection device packet
It includes, β ray detector units；
Data processing unit connects the β ray detector units；
Wherein, the β ray detector units include positioned at the intracavitary β ray irradiation source in the movement portion and with β ray irradiation source
The β ray being oppositely arranged receives measuring unit, and β ray irradiation source and the β ray receive and place institute between measuring unit
State paper tape.
6. the mechanism for monitoring of atmosphere particle concentration according to claim 1, it is characterised in that: tool in the detection device
There is the sealing device.
7. the mechanism for monitoring of atmosphere particle concentration described in -6 any one according to claim 1, it is characterised in that: described close
Encapsulation is set to O-ring.
8. the mechanism for monitoring of atmosphere particle concentration according to claim 1, it is characterised in that: the mechanism for monitoring also wraps
Dynamic heating device is included, the dynamic heating device is set on the thief rod, for adding to the Atmospheric particulates
Heat.
9. a kind of monitoring method of atmosphere particle concentration, which is characterized in that using big described in claim 1-8 any one
The mechanism for monitoring of aerated particle object concentration monitors the concentration of the Atmospheric particulates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749659.XA CN110455692A (en) | 2019-08-14 | 2019-08-14 | A kind of mechanism for monitoring and monitoring method of atmosphere particle concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749659.XA CN110455692A (en) | 2019-08-14 | 2019-08-14 | A kind of mechanism for monitoring and monitoring method of atmosphere particle concentration |
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| Publication Number | Publication Date |
|---|---|
| CN110455692A true CN110455692A (en) | 2019-11-15 |
Family
ID=68486579
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910749659.XA Withdrawn CN110455692A (en) | 2019-08-14 | 2019-08-14 | A kind of mechanism for monitoring and monitoring method of atmosphere particle concentration |
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| CN (1) | CN110455692A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337399A (en) * | 2020-04-09 | 2020-06-26 | 合肥福瞳光电科技有限公司 | Monitoring mechanism for concentration of atmospheric particulate matter |
| 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 |
-
2019
- 2019-08-14 CN CN201910749659.XA patent/CN110455692A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337399A (en) * | 2020-04-09 | 2020-06-26 | 合肥福瞳光电科技有限公司 | Monitoring mechanism for concentration of atmospheric particulate matter |
| CN111337399B (en) * | 2020-04-09 | 2022-11-11 | 合肥福瞳光电科技有限公司 | Monitoring mechanism for concentration of atmospheric particulate matter |
| 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 |
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Application publication date: 20191115 |