CN108645741A - Oscillating balance and atmosphere particle concentration monitoring method - Google Patents
Oscillating balance and atmosphere particle concentration monitoring method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000012544 monitoring process Methods 0.000 title claims abstract description 25
- 239000002245 particle Substances 0.000 title claims abstract description 21
- 238000005303 weighing Methods 0.000 claims abstract description 123
- 239000012528 membrane Substances 0.000 claims abstract description 30
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- VNFVKWMKVDOSKT-LREBCSMRSA-N (2r,3r)-2,3-dihydroxybutanedioic acid;piperazine Chemical compound C1CNCCN1.OC(=O)[C@H](O)[C@@H](O)C(O)=O VNFVKWMKVDOSKT-LREBCSMRSA-N 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000003570 air Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000013618 particulate matter Substances 0.000 description 5
- 239000012080 ambient air Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005250 beta ray Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
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- 231100000614 poison Toxicity 0.000 description 2
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- 230000006872 improvement Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
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- 238000010561 standard procedure Methods 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
- 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
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Abstract
A kind of oscillating balance of disclosure offer and atmosphere particle concentration monitoring method, the oscillating balance include real-time weighing chamber and balance weighing chamber, wherein：Real-time weighing chamber and balance weighing chamber include：It weighs cavity, hollow conical pipe and flowmeter；Balance weighing room further includes：Temp and humidity regulator；Wherein, balance weighing room obtains compensation factor by calculating moisture content in Atmospheric particulates, and real-time weighing chamber calibrates real-time weighing data using compensation factor, obtains Atmospheric particulates actual concentration.The oscillating balance that the disclosure provides is weighed using balance weighing room with real-time weighing chamber parallel, the steam in the Atmospheric particulates adhered on filter membrane is eliminated by temp and humidity regulator, using such setting, oscillating balance can be made to save conventional film calibration system, and use the dehumanization method consistent with national standard, measurement accuracy is increased, and has great progress compared with " film compensation " technology in maintenance difficulties, cost.
Description
Technical field
This disclosure relates to which atmosphere environment supervision equipment technical field more particularly to a kind of oscillating balance and Atmospheric particulates are dense
Spend monitoring method.
Background technology
Atmospheric particulates are a hot spots of online environment monitoring, studies have shown that particulate matter is that visibility is caused to degenerate, draw
The main reason for playing region gray haze phenomenon, especially fine particle (PM2.5), compared with larger Atmospheric particulates, its grain size
Small, area is big, and activity is strong, easily incidentally poisonous and harmful substances (heavy metal, persistent organism etc.), and stop in an atmosphere
Time is long, fed distance is remote, thus to the influence bigger of health and atmosphere quality.Therefore, to airborne particulate substance
Measure the on-line monitoring of concentration seems extremely important to level of pollution, variation tendency and the government decision of grasping Atmospheric particulates.
2012《Ambient air quality》(GB3095-2012) so far, air quality monitoring station is universal for publication
It is equipped with particulate matter on-line computing model, for the pellet (PM in real-time measuring environment air10) and fine particle
(PM2.5).There are two types of measurement methods in particulate matter on-line monitoring National Standard Method, and β ray methods and oscillating balance method, oscillating balance are owned by France
In direct measuring method, has compared with β ray methods in measurement accuracy and have great advantage.Due to oscillating balance method particle monitoring
The steam and other volatile matters that instrument easily adsorbs in by ambient atmospheric humidity and filter membrane in the observation process to Atmospheric particulates
Influence, currently on the market the oscillating balance method monitor of mainstream in order to overcome the problems referred above, use the technology of " film compensation ",
Principle is to increase special device in sample channel, with timesharing item filter membrane rotation conveying actual sample gas and condensed, filtration treatment
Sample gas afterwards, so as to carry out " compensation " to particle concentration data.
However, during realizing the disclosure, present inventor has found, in practical applications, especially in China
Coastal and low altitude area, the daily maintenance proving operation of " film compensation " technique device is excessively complicated, frequently, stability, durable
Property be difficult to adapt to detection technique standard requirement.
Disclosure
(1) technical problems to be solved
Based on above-mentioned technical problem, a kind of oscillating balance of disclosure offer and atmosphere particle concentration monitoring method, with slow
It is excessively complicated, frequent to solve " film compensation " device daily maintenance proving operation in the prior art, stability, durability are difficult to adapt to
The technical issues of detection technique standard requires.
(2) technical solution
According to one aspect of the disclosure, a kind of oscillating balance, including real-time weighing chamber and balance weighing chamber are provided,
In：The real-time weighing chamber and the balance weighing room include：It weighs cavity；Hollow conical pipe is arranged in the chamber of weighing
In vivo, top is provided with filter membrane, and bottom is provided with fixed interface, the hollow conical pipe using air-flow by when be attached to institute
The Atmospheric particulates on filter membrane are stated, the resonant frequency of the hollow conical pipe is changed, acquire airborne particulate amount of substance；And flow
Meter is arranged in the exit of the hollow conical pipe, for measuring the air flow rate by the hollow conical pipe；The balance
Weighing chamber further includes：Temp and humidity regulator, setting is weighed described in cavity, for adjusting the indoor temperature of the balance weighing
Humidity simultaneously eliminates the steam being attached in the Atmospheric particulates on the filter membrane；Wherein, the balance weighing room is big by calculating
Moisture content obtains compensation factor in aerated particle object, and the real-time weighing chamber calibrates number of weighing in real time using the compensation factor
According to acquisition Atmospheric particulates actual concentration.
In some embodiments of the present disclosure, the temp and humidity regulator includes：Heating device, for changing described flat
Weigh indoor temperature of weighing；Drying device, for changing the indoor humidity of the balance weighing；Temperature Humidity Sensor, for real
When monitor the indoor temperature of the balance weighing and humidity；And control device, according to the measurement knot of the Temperature Humidity Sensor
Fruit controls the heating device and the drying device closure or openness.
In some embodiments of the present disclosure, the heating device and the Temperature Humidity Sensor include N number of, N number of institute
It states heating device and the Temperature Humidity Sensor is arranged at intervals on the inner wall of the cavity of weighing, wherein N >=2.
In some embodiments of the present disclosure, which further includes：Cutter, for cutting sampling airborne particulate
Object；Part flow arrangement, the air-flow for the cutter to be discharged are delivered to the real-time weighing chamber and the balance weighing respectively
In room；And flow controller, for controlling the air flow rate by the real-time weighing chamber and the balance weighing room.
In some embodiments of the present disclosure, wherein：The indoor temperature of balance weighing is adjusted between 15 to 30 DEG C
It is 1 DEG C to save precision；The indoor humidity of balance weighing is between 45% between 55%RH.
In some embodiments of the present disclosure, wherein：It is respectively arranged with air inlet at the top and bottom of the cavity of weighing
The gas outlet and；The hollow conical pipe is vertically arranged in the bottom of the cavity of weighing, and top is opposite with the air inlet to be set
It sets, bottom end is connected to the gas outlet.
In some embodiments of the present disclosure, the Atmospheric particulates of the cutter sampling are PM2.5And PM10。
According to another aspect of the disclosure, a kind of atmosphere particle concentration monitoring method is also provided, is carried by the disclosure
The oscillating balance realization of confession, including：Step A：The air-flow containing Atmospheric particulates is acquired using cutter, and is delivered to reality respectively
When weighing chamber and balance weighing chamber；Step B：Air-flow is obtained big by being trapped and being weighed after indoor filter membrane of weighing in real time
The sampled concentrations of aerated particle object；Step C：Air-flow is led to by being trapped and being balanced standing after the indoor filter membrane of balance weighing
It crosses temp and humidity regulator and changes the indoor temperature and humidity of balance weighing, elimination is attached in the Atmospheric particulates on filter membrane
Steam；Step D：According to the moisture content obtained in balance weighing room, calibration is carried out to sampled concentrations and obtains Atmospheric particulates
Actual concentration.
In some embodiments of the present disclosure, the step C includes：Step C1：According to set acquisition time into promoting the circulation of qi
Stream acquisition；Step C2：It is balanced standing, and is eliminated in the Atmospheric particulates being attached on filter membrane using temp and humidity regulator
Steam；Step C3：The indoor humidity of balance weighing is detected, if humidity is more than setting range, return to step C2, if humidity is steady
It is scheduled in setting range, then weighs.
In some embodiments of the present disclosure, in the step C2, time of standing is balanced according to longitude and latitude, solar term and outer
The humiture dynamic of boundary's air adjusts.
(3) advantageous effect
It can be seen from the above technical proposal that oscillating balance and atmosphere particle concentration the monitoring method tool that the disclosure provides
There are one of following advantageous effect or in which a part：
(1) it is weighed, is eliminated by temp and humidity regulator attached on filter membrane parallel with real-time weighing chamber using balance weighing room
Steam in the Atmospheric particulates can make oscillating balance save conventional film calibration system, and use using such setting
With national standard《HJ656-2013 ambient air particulate matters (PM2.5) craft monitoring method (gravimetric method) technical specification》Consistent dehumidifying
Method increases measurement accuracy, and has great progress compared with " film compensation " technology in maintenance difficulties, cost；
(2) during eliminating steam by temp and humidity regulator, additionally it is possible to the indoor temperature of balance weighing be maintained to exist
In reasonable range, to alleviate, quickly volatilization leads to particulate matter to volatile substances in Atmospheric particulates of the attached collection on filter membrane
The relatively low problem of concentration measured value；
(3) coordinated jointly with drying device by heating device, rate of drying can be accelerated, shorten balance time of repose；
(4) it is arranged at balance weighing chamber interior with Temperature Humidity Sensor using multiple heating devices, balance can be made
Indoor humiture of weighing is more evenly distributed, and the measurement result of Temperature Humidity Sensor is more accurate, to make Atmospheric particulates
The correction result of concentration is more acurrate.
Description of the drawings
Fig. 1 is the structural schematic diagram of real-time weighing chamber and balance weighing chamber in the oscillating balance that the disclosure provides.
Fig. 2 is the structural schematic diagram for the oscillating balance that the disclosure provides.
Fig. 3 is the flow diagram for the atmosphere particle concentration monitoring method that the disclosure provides.
【Embodiment of the present disclosure main element symbol description in attached drawing】
The real-time weighing chambers of 100-；
110- weighs cavity；
120- hollow conical pipes；
121- filter membranes；122- fixed interfaces；
200- balance weighings room；
210- heating devices；
220- drying devices；
230- Temperature Humidity Sensors；
300- cutters；
400- part flow arrangements；
500- flow controllers.
Specific implementation mode
The embodiment of the present disclosure provide oscillating balance and atmosphere particle concentration monitoring method in, using balance weighing room with
Real-time weighing chamber is weighed parallel, to effectively reduce the influence of the steam weighing results in Atmospheric particulates, and can be kept away
Exempting from steam volatilization causes to measure the relatively low problem of concentration.
To make the purpose, technical scheme and advantage of the disclosure be more clearly understood, below in conjunction with specific embodiment, and reference
The disclosure is further described in attached drawing.
Fig. 1 is the structural schematic diagram of real-time weighing chamber and balance weighing chamber in the oscillating balance that the disclosure provides.
In some embodiments of the present disclosure, a kind of oscillating balance is provided, as shown in Figure 1, including 100 He of real-time weighing chamber
Balance weighing room 200, wherein：Real-time weighing chamber 100 and balance weighing chamber 200 include：It weighs cavity 110；Hollow conical pipe
120, it is arranged in cavity 110 of weighing, top is provided with filter membrane 121, and bottom is provided with fixed interface 122, the hollow cone
Shape pipe 120 using air-flow inside it by when be attached to Atmospheric particulates on filter membrane 121, to change the hollow conical pipe
120 resonant frequency acquires airborne particulate amount of substance；And flowmeter, it is arranged in the exit of hollow conical pipe 120, is used for
Measure the air flow rate by hollow conical pipe 120.
Balance weighing room 200 further includes：Temp and humidity regulator is arranged in cavity 110 of weighing, claims for adjustment
Humiture and elimination in weight room 200 are attached to the steam in the Atmospheric particulates on filter membrane 121, wherein balance weighing room 200
Compensation factor is obtained by calculating moisture content in Atmospheric particulates, real-time weighing chamber 100 is calibrated using compensation factor to be claimed in real time
Tuple evidence.
It is weighed parallel using balance weighing room 200 and real-time weighing chamber 100, filter membrane is eliminated by temp and humidity regulator
Steam in the Atmospheric particulates adhered on 121 can make oscillating balance save conventional film calibration system using such setting
System, and use and national standard《HJ656-2013 ambient air particulate matters (PM2.5) craft monitoring method (gravimetric method) technical specification》One
The dehumanization method of cause, increases measurement accuracy, and have compared with " film compensation " technology in maintenance difficulties, cost very greatly into
Step；Meanwhile by temp and humidity regulator eliminate steam during, additionally it is possible to maintain the temperature in balance weighing room 200 to exist
In reasonable range, to alleviate in attached Atmospheric particulates of the collection on filter membrane 121 volatile substances, quickly volatilization causes
The relatively low problem of grain object concentration measured value.
In some embodiments of the present disclosure, as shown in Figure 1, temp and humidity regulator includes：Heating device 210, is used for
Change the temperature in balance weighing room 200；Drying device 220, for changing the humidity in balance weighing room 200；Humiture passes
Sensor 230, for monitoring temperature and humidity in balance weighing room 200 in real time；And control device, according to Temperature Humidity Sensor
230 measurement result control heating device 210 and 220 closure or openness of drying device, opened by controlling heating device 210 or
It is closed, temperature control in balance weighing room 200 can be avoided leading to volatile matter since temperature is excessively high between 15 to 30 DEG C
Matter is volatilized, while being coordinated jointly by heating device 210 and drying device 220, can be accelerated rate of drying, be shortened and stand balance
The physical dryness agent not chemically reacted with Atmospheric particulates or chemical drier can be used in time, drying device 220.
In some embodiments of the present disclosure, as shown in Figure 1, heating device 210 and Temperature Humidity Sensor 230 include N
A, N number of heating device 210 and Temperature Humidity Sensor 230 are arranged at intervals on the inner wall for cavity 110 of weighing, wherein N >=2, are used
Multiple heating devices 210 are arranged at Temperature Humidity Sensor 230 inside balance weighing room 200, can make balance weighing room
Humiture in 200 is more evenly distributed, and the measurement result of Temperature Humidity Sensor is more accurate, to make atmosphere particle concentration
Correction result it is more acurrate.
Fig. 2 is the structural schematic diagram for the oscillating balance that the disclosure provides.
In some embodiments of the present disclosure, as shown in Fig. 2, the oscillating balance further includes：Cutter 300, for cutting
Sample Atmospheric particulates；Part flow arrangement 400, the air-flow for cutter 300 to be discharged are delivered to 100 He of real-time weighing chamber respectively
In balance weighing room 200；And flow controller 500, for controlling through real-time weighing chamber 100 and balancing weighing chamber 200
Air flow rate, in actual use, acquisition is contained air by the Atmospheric particulates that need to be acquired by the cutting sampling of cutter 300
The air-flow of particulate matter is delivered to by part flow arrangement 400 in real-time weighing chamber 100 and balance weighing chamber 200 respectively, then passes through stream
Amount controller 500 controls the flow of the air-flow by real-time weighing chamber 100 or balance weighing room 200 respectively, to realize to big
The highly effective gathering of aerated particle object.
In some embodiments of the present disclosure, wherein：Temperature in balance weighing room 200 is adjusted between 15 to 30 DEG C
It is 1 DEG C to save precision, to avoid volatile substances from volatilizing；Humidity in balance weighing room 200 between 45% between 55%RH,
By the way that the humidity range of balance weighing room 200 is arranged, can effectively judge in the Atmospheric particulates being attached at this time on filter membrane 121
Moisture.
In some embodiments of the present disclosure, as shown in Figure 1, wherein：The weigh top and bottom of cavity 110 are respectively set
There are air inlet and gas outlet；Hollow conical pipe 120 is vertically arranged in the bottom for cavity 110 of weighing, and top is opposite with air inlet
Setting, bottom end is connected to gas outlet.
In some embodiments of the present disclosure, the Atmospheric particulates that cutter 500 samples are PM2.5And PM10, their grain
Diameter is small, and area is big, and activity is strong, easily subsidiary poisonous and harmful substances (heavy metal, persistent organism etc.), and stopping in an atmosphere
Stay that the time is long, fed distance is remote, thus to the influence bigger of health and atmosphere quality, therefore with greater need for being examined in real time
It surveys.
Fig. 3 is the flow diagram for the atmosphere particle concentration monitoring method that the disclosure provides.
According to another aspect of the disclosure, a kind of atmosphere particle concentration monitoring method is also provided, is carried by the disclosure
The oscillating balance realization of confession, including：Step A：The air-flow containing Atmospheric particulates is acquired using cutter 500, and is conveyed respectively
To real-time weighing chamber 100 and balance weighing chamber 200；Step B：Air-flow after the filter membrane 121 in real-time weighing chamber 100 by being trapped
And be weighed, and obtain the sampled concentrations of Atmospheric particulates；Step C：After air-flow is by the filter membrane 121 in balance weighing room 200
It is trapped and is balanced standing, and the temperature and humidity in balance weighing room 200 is changed by temp and humidity regulator, is eliminated
The steam being attached in the Atmospheric particulates on filter membrane 121；Step D：According to the moisture content obtained in balance weighing room 200,
The actual concentration that calibration obtains Atmospheric particulates is carried out to sampled concentrations.
In some embodiments of the present disclosure, as shown in figure 3, step C includes：Step C1：According to set acquisition time
Carry out air-flow acquisition；Step C2：It is balanced standing, and eliminates the air being attached on filter membrane using temp and humidity regulator
Steam in grain object；Step C3：The humidity in balance weighing room 200 is detected, if humidity is more than setting range, return to step
C2, if moisture stable in setting range, is weighed.
In some embodiments of the present disclosure, in step C2, the time for balancing standing is empty according to longitude and latitude, solar term and the external world
The humiture dynamic of gas adjusts.
So far, attached drawing is had been combined the embodiment of the present disclosure is described in detail.It should be noted that in attached drawing or saying
In bright book text, the realization method for not being painted or describing is form known to a person of ordinary skill in the art in technical field, and
It is not described in detail.In addition, the above-mentioned definition to each element and method be not limited in mentioning in embodiment it is various specific
Structure, shape or mode, those of ordinary skill in the art simply can be changed or replaced to it.
According to above description, oscillating balance and atmosphere particle concentration that those skilled in the art should provide the disclosure
Monitoring method has clear understanding.
In conclusion the disclosure provide oscillating balance and atmosphere particle concentration monitoring method using balance weighing room with
Real-time weighing chamber is weighed parallel, and is corrected to real-time weighing chamber using the measurement result of balance weighing room, to effectively drop
The influence of steam weighing results in low Atmospheric particulates, keeps measurement result more acurrate.
It should also be noted that, the direction term mentioned in embodiment, for example, "upper", "lower", "front", "rear", " left side ",
" right side " etc. is only the direction of refer to the attached drawing, not is used for limiting the protection domain of the disclosure.Through attached drawing, identical element by
Same or similar reference numeral indicates.When that understanding of this disclosure may be caused to cause to obscure, conventional structure will be omitted
Or construction.
And the shape and size of each component do not reflect actual size and ratio in figure, and only illustrate the embodiment of the present disclosure
Content.In addition, in the claims, any reference mark between bracket should not be configured to the limit to claim
System.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of each open aspect,
Above in the description of the exemplary embodiment of the disclosure, each feature of the disclosure is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following intention：It is i.e. required to protect
The disclosure of shield requires features more more than the feature being expressly recited in each claim.More precisely, such as front
Claims reflect as, open aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following specific implementation mode are expressly incorporated in the specific implementation mode, wherein each claim itself
All as the separate embodiments of the disclosure.
Particular embodiments described above has carried out further in detail the purpose, technical solution and advantageous effect of the disclosure
It describes in detail bright, it should be understood that the foregoing is merely the specific embodiment of the disclosure, is not limited to the disclosure, it is all
Within the spirit and principle of the disclosure, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the disclosure
Within the scope of shield.
Claims (10)
1. a kind of oscillating balance, including real-time weighing chamber and balance weighing chamber, wherein：
The real-time weighing chamber and the balance weighing room include：
It weighs cavity；
Hollow conical pipe, setting are weighed described in cavity, and top is provided with filter membrane, and bottom is provided with fixed interface, should
Hollow conical pipe using air-flow by when be attached to Atmospheric particulates on the filter membrane, change the resonance frequency of the hollow conical pipe
Rate acquires airborne particulate amount of substance；And
Flowmeter is arranged in the exit of the hollow conical pipe, for measuring the air flow rate by the hollow conical pipe；
The balance weighing room further includes：
Temp and humidity regulator, setting is weighed described in cavity, for adjusting the indoor humiture of the balance weighing and disappearing
Except the steam in the Atmospheric particulates being attached on the filter membrane；
Wherein, the balance weighing room obtains compensation factor by calculating moisture content in Atmospheric particulates, described to weigh in real time
Real-time weighing data is calibrated in room using the compensation factor, obtains Atmospheric particulates actual concentration.
2. oscillating balance according to claim 1, the temp and humidity regulator include：
Heating device, for changing the indoor temperature of the balance weighing；
Drying device, for changing the indoor humidity of the balance weighing；
Temperature Humidity Sensor, for monitoring the indoor temperature of the balance weighing and humidity in real time；And
Control device controls the heating device according to the measurement result of the Temperature Humidity Sensor and the drying device is opened
Or it is closed.
3. oscillating balance according to claim 2, the heating device and the Temperature Humidity Sensor include N number of, N number of
The heating device and the Temperature Humidity Sensor are arranged at intervals on the inner wall of the cavity of weighing, wherein N >=2.
4. oscillating balance according to claim 1, the oscillating balance further include：
Cutter, for cutting sampling Atmospheric particulates；
Part flow arrangement, the air-flow for the cutter to be discharged are delivered to the real-time weighing chamber and the balance weighing respectively
In room；And
Flow controller, for controlling the air flow rate by the real-time weighing chamber and the balance weighing room.
5. oscillating balance according to claim 1, wherein：
For the indoor temperature of balance weighing between 15 to 30 DEG C, degree of regulation is 1 DEG C；
The indoor humidity of balance weighing is between 45% between 55%RH.
6. oscillating balance according to claim 1, wherein：
It is respectively arranged with air inlet and gas outlet at the top and bottom of the cavity of weighing；
The hollow conical pipe is vertically arranged in the bottom of the cavity of weighing, and top is oppositely arranged with the air inlet,
Bottom end is connected to the gas outlet.
7. the Atmospheric particulates of oscillating balance according to any one of claim 1 to 6, the cutter sampling are PM2.5
And PM10。
8. a kind of atmosphere particle concentration monitoring method, real by the oscillating balance described in any one of the claims 1 to 7
It is existing, including：
Step A：The air-flow containing Atmospheric particulates is acquired using cutter, and is delivered to real-time weighing chamber and balance weighing respectively
Room；
Step B：Air-flow show that the sampling of Atmospheric particulates is dense by being trapped and being weighed after indoor filter membrane of weighing in real time
Degree；
Step C：Air-flow passes through temp and humidity regulator by being trapped and being balanced standing after the indoor filter membrane of balance weighing
Change the indoor temperature and humidity of balance weighing, eliminates the steam being attached in the Atmospheric particulates on filter membrane；
Step D：According to the moisture content obtained in balance weighing room, calibration is carried out to sampled concentrations and obtains the true of Atmospheric particulates
Real concentration.
9. atmosphere particle concentration monitoring method according to claim 8, the step C include：
Step C1：Air-flow acquisition is carried out according to set acquisition time；
Step C2：It is balanced standing, and is eliminated in the Atmospheric particulates being attached on filter membrane using temp and humidity regulator
Steam；
Step C3：The indoor humidity of balance weighing is detected, if humidity is more than setting range, return to step C2, if moisture stable
In setting range, then weigh.
10. atmosphere particle concentration monitoring method according to claim 9, in the step C2, the time of standing is balanced
It is adjusted according to the humiture of longitude and latitude, solar term and outside air dynamic.
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Cited By (7)
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| CN109580444A (en) * | 2019-01-31 | 2019-04-05 | 罗舒 | It is suitble to the micro oscillating balance dust concentration instrument of TEOM of the ultra-clean discharge of thermal power plant |
| CN109932273A (en) * | 2019-03-18 | 2019-06-25 | 天津同阳科技发展有限公司 | With reference oscillator oscillating balance and intelligent compensating method |
| CN110231263A (en) * | 2019-05-23 | 2019-09-13 | 武汉大学 | A kind of PM2.5 mass sensor and preparation method thereof with self-cleaning function |
| CN112649336A (en) * | 2020-12-15 | 2021-04-13 | 北京雪迪龙科技股份有限公司 | Humidity interference removing method |
| CN113049435A (en) * | 2021-04-25 | 2021-06-29 | 武汉中科标测科技有限公司 | System and method for rapidly estimating total content of harmful gases in air |
| CN116008143A (en) * | 2022-12-15 | 2023-04-25 | 中国矿业大学 | Synchronous monitor based on total dust and breathing dust of two-stage oscillating balance |
| CN116242753A (en) * | 2022-12-30 | 2023-06-09 | 山东大学 | Particulate matter monitoring system based on big data and application method thereof |
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