CN107860598A - A kind of portable cutter for particles fast calibration device and its calibration method - Google Patents
A kind of portable cutter for particles fast calibration device and its calibration method Download PDFInfo
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- CN107860598A CN107860598A CN201711193466.8A CN201711193466A CN107860598A CN 107860598 A CN107860598 A CN 107860598A CN 201711193466 A CN201711193466 A CN 201711193466A CN 107860598 A CN107860598 A CN 107860598A
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- 239000002245 particle Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 55
- 239000013618 particulate matter Substances 0.000 claims abstract description 23
- 230000005250 beta ray Effects 0.000 claims abstract description 18
- 238000002474 experimental method Methods 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 13
- 238000007405 data analysis Methods 0.000 claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 235000018734 Sambucus australis Nutrition 0.000 claims description 2
- 244000180577 Sambucus australis Species 0.000 claims description 2
- OGFXBIXJCWAUCH-UHFFFAOYSA-N meso-secoisolariciresinol Natural products C1=2C=C(O)C(OC)=CC=2CC(CO)C(CO)C1C1=CC=C(O)C(OC)=C1 OGFXBIXJCWAUCH-UHFFFAOYSA-N 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000011017 operating method Methods 0.000 abstract description 2
- 238000000280 densification Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 64
- 230000008569 process Effects 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000008246 gaseous mixture Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
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- 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
- G01N15/06—Investigating concentration of particle suspensions
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- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
A kind of portable cutter for particles fast calibration device and its calibration method, the gas for accurate rapid configuration generation standard particle thing concentration is for experiment, so as to calibrate the key components and parts in air detecting device：Cutter, including particulate matter storing and feeding device 15, clean gas generator 11, mixing nacelle 7, sample nacelle 5, cutter mounting seat 2, β rays test module 17, automatic control system, data analysis system.The present invention is laid out by the mutually embedding design in special double cabins and structure rationalization, realizes calibrating installation lightweight densification；Each part is connected by pipeline, and β ray test modules are finally introduced gas under control system guide, is realized automation quick detection calibration, is simplified device operating procedure, shorten prover time, greatly improve efficiency.
Description
Technical field
The present invention relates to a kind of calibrating installation of cutter for particles and calibration method, particularly a kind of portable particulate matter
Cutter fast calibration device and its calibration method.
Background technology
PM2.5 is the general name to solid particle of the diameter in air less than or equal to 2.5 μm or drop, is called fine particle
Or go directly to the alveoli, this kind of particulate matter proportion in Atmospheric components is smaller, small volume, is easily sucked by human body, propagation distance
Far, containing a large amount of noxious materials, there is significant impact to health, air quality and atmospheric visibility etc. are had a great influence, sternly
Heavily contaminated atmospheric environment.
《Surrounding air PM10 and PM2.5 measure gravimetric method》In define for Atmospheric particulates mass concentration monitoring
Instrument is mainly atmosphere particulate matter sampler and monitor, is divided into Manual analysis method and autoanalyzer method by operation principle, mainly
Including microbalance (TEOM) method, beta-ray measurement method, light-scattering measurement.The operating procedure of these methods is broadly divided into two steps,
First have to, PM2.5 and larger particulate separation, then determine the PM2.5 separated weight so as to obtain PM2.5
The concentration of grain thing.The principle of PM2.5 samplers is the effect by aspiration pump, and air flows through sampler with certain flow rate, larger
Particle can impinge upon on the part for having applied oil and be trapped, the less PM2.5 overwhelming majority of inertia can be with because inertia is larger
Air to pass through.But for the trapping ability and effect of PM2.5 samplers, particle of the diameter less than 2.5 microns is not yet
It is that can be transferred through entirely, the probability that exactly 2.5 microns of particle also has 50% can pass through sampler；Diameter is more than 2.5 microns
Particle is not trapped entirely, thus utilize PM2.5 sampler separation and collection fine particles, the collection statistical result of Different field with
There may be deviation between actual value.According to《Surrounding air PM10 and PM2.5 measure gravimetric method》Standard requirement, air
Particle percent of pass of the kinetic diameter more than 3.0 microns is less than 16%, and the percent of pass of less than 2.1 microns particles is greater than
84%, and then determine that result falls in a believable section.PM2.5 samplers have to pass through calibration before the use, existing to cut
Calibration platform is built according to self-demand by the ununified form of cutter calibration system and standard, manufacturer and testing agency, with full
Sufficient product calibration requirements.There is serious forgiveness bottom in these calibrating installations, install, be cumbersome, and plant bulk is big, part connection is multiple
It is miscellaneous, the problems such as calibration result confidence level is relatively low.
The content of the invention
To solve the above problems, the invention provides a kind of portable cutter for particles fast calibration device and its calibration
Method, the fast automatic calibration of cutter can be achieved, and directly export calibration result.The calibrating installation have miniaturization lightweight,
The characteristics of operating simplicity, online result output are greatly improved calibration efficiency.
The technical solution adopted by the present invention is：A kind of portable cutter for particles fast calibration device is provided, including
Grain thing storing and feeding device, clean gas generator, mixing nacelle, sample nacelle, cutter mounting seat, β rays test module,
Automatic control system, data analysis system.
Portable cutter for particles fast calibration device of the present invention, it mixes nacelle and sample chamber body phase is embedding,
Mixed cabin seals Single port by sample chamber, and the relative mixed cabin of sample chamber energy axially moves.Piston seal sample chamber and
It can be axially moved in cabin, therefore above-mentioned two nacelle all has the characteristics of variable volume, sample chamber has controllable valve to be used for
Control the connection between two nacelles.
Portable cutter for particles fast calibration device of the present invention, its clean gas generator and particulate matter storage
One end that feed device is arranged on mixed cabin is deposited, for clean gas and particulate matter spirt mixed cabin, mixed cabin inwall to be provided with
Breeder tube, for producing small air-flow in mixed cabin, gas and particulate matter is aided in uniformly to mix.
Portable cutter for particles fast calibration device of the present invention, its mixed cabin body inside are adjusted equipped with humiture
Save device and electrostatic adjuster is used for the physical characteristic condition of Control experiment gas.
Portable cutter for particles fast calibration device of the present invention, its clean gas generator can from air or
Obtain source of the gas in person's sample chamber, and by its filtration, purification, be then sent to mixed cabin.
Portable cutter for particles fast calibration device of the present invention, its sample chamber and cutter mounting seat and β
Ray test module is connected, and sample chamber gas outlet duct is divided into two, and will be lifted by reversal valve and be individually directed different outputs
Pipeline.A wherein pipeline is directly communicated to β ray test modules, and another first passes through cutter and be passed through β ray test modules again.
Portable cutter for particles fast calibration device of the present invention, each part are connected by pipeline, pipeline
Import and export is respectively equipped with controllable valve Control experiment gas position in a device and circulating direction.
Portable cutter for particles fast calibration device of the present invention, in addition to it is used for realization device automatic running
Control system, for controlling the start and stop of all parts, the switch of each pipe valve, the procedure operation and sequential control of each part
System.
Portable cutter for particles fast calibration device of the present invention, in addition to the number for repairing experiment data
According to analysis system, the gas concentration data successively gathered in β ray test modules are converted, compared, are calculated, result matching
Exported with result.
The present invention also provides a kind of cutter calibration method, in above-mentioned portable particulate matter calibrating installation, including with
Lower step：
Cutter to be calibrated is loaded cutter mounting seat by S1, is then opened cutter calibrating installation, into initialization
Prepare, now clean gas generator work produces a large amount of clean gas, for cleaning remaining in mixed cabin and sample chamber
Grain thing, cleaning are completed to close all valves, and system enters ready states.
Enough particulate matters to be tested are put into particulate matter storing and feeding device by S2, setting test gas concentration, warm and humid
The parameters such as degree, flow velocity simultaneously start calibrating installation, and clean gas generator is opened with particulate matter storing and feeding device according to setting concentration
Begin transmission material.
S3 mixed cabins produce air-flow and are used for uniform hybrid particles thing and clean gas, while sample chamber is slowly to outside mixed cabin
Portion moves, and mixed cabin volume becomes larger；
S4 thermo hydrograph regulators and electrostatic adjuster, which are started working, adjusts the humiture and electrostatic parameters of forming gas.
S5 treats that gas mixing is uniform, closes mixed cabin internal gas flow and the valve outside all connect, and opens on sample chamber
The valve connected with mixed cabin, while sample bin starts slowly to move into mixed cabin, compression mixed cabin volume causes gaseous mixture
Body is flowed into sample bin.
After S6 band gases fully enter mixed cabin inside, 20 seconds are stood, then samples the commutation valve regulation of output channel
To β ray test modules are directly output to, sampling output channel valve is opened, the mobile extrusion into sample chamber of sample chamber piston is treated
The sample gas of experiment, by β ray test module test sample gas particles thing concentration.
S7 adjustable change valves continue to move to piston, residual gas conveying are passed through into cutter, by cutting to cutter passage
β ray test modules, which are delivered the gas to, after device cutting filtering measures gas particles thing concentration after cutting.
S8 β rays test modules send the data measured twice to data analysis system, inner setting calculation formula,
Calibration test result is drawn after calculating and comparing.
The present invention has advantages below compared with prior art：
(1) portable cutter for particles fast calibration device provided by the invention is mutually embedding using mixed cabin and sample chamber
Principle simultaneously optimizes the layout in the structures of all parts, on the one hand realizes more functions, the opposing party using limited space
Face is keeping eliminating unnecessary pipe valve and power source from principle on the premise of function is constant so that whole calibration
Device more small volume and less weight；
(2) the real-time testing function of β ray test modules is combined, after the existing experiment for needing to use " gravimetric method " to complete
Continuous processing procedure is directly reduced to the output of online real-time results, substantially increases test efficiency, avoid during experiment it is artificial because
Result of the test deviation caused by element；
(3) the built-in automation control system and data analysis system for being applied to said apparatus, experiment process whole process is realized
Automatic operating, result of the test are automatically performed calculating by internal processes and compare output, simplify the cumbersome of existing calibrating mode
Flow.
Brief description of the drawings
Fig. 1 is structure principle chart of the embodiment of the present invention；
Fig. 2 is control system block diagram of the embodiment of the present invention；
The step flow chart for the calibration method that Fig. 3 is provided by embodiment.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in figure 1, the embodiment of the present invention provides a kind of portable cutter for particles fast calibration device, including particle
Thing storing and feeding device 15, clean gas generator 11, mixing nacelle 7, sample nacelle 5, cutter mounting seat 2, the test of β rays
Module 17, automatic control system, data analysis system.Cutter 1 is that element under test is not included in device scope in the present embodiment
It is interior；Mixed cabin 7 includes the additional devices such as internal thermo hydrograph regulator 16, electrostatic adjuster 14, airflow hole 12；Sample chamber includes
Piston 6 for volume adjusted；All parts are connected by pipeline 8,9, and gate-controlled switch is housed in part air inlet or gas outlet
Valve 13,10,19, reversal valve 3, and telescopic tube 4.Clean gas generator 11 can obtain gas from air 9 or sample chamber 5
Source, and by its filtration, purification, it is then sent to mixed cabin 7.Mix nacelle 7 and sample nacelle 5 is mutually embedding, mixed cabin 7 is by sample chamber 5
Single port is sealed, and sample chamber 5 relative can mix 7 cabins and axially move.The sealed sample cabin 5 of piston 6 and it can be done in cabin
It is axially moved, therefore above-mentioned two nacelle all has the characteristics of variable volume, sample chamber 5 has controllable valve 19 for controlling two
Connection between nacelle.Clean gas generator 11 and particulate matter storing and feeding device 15 are arranged on one end of mixed cabin, clean
Gas generator 11 sprays particulate matter spirt mixed cabin 7 clean gas simultaneously, and mixed cabin inwall is provided with breeder tube 12, uses
In producing small air-flow in mixed cabin, gas and particulate matter is aided in uniformly to mix.The inside of mixing nacelle 7 is equipped with temperature and humidity regulation
Device 16 and electrostatic adjuster 14 are used for the physical characteristic condition of Control experiment gas.Sample chamber 5 is penetrated with cutter mounting seat 2 and β
Line test module 17 is connected, and sample chamber gas outlet duct is divided into two, and will be lifted by reversal valve 3 and be individually directed different outputs
Pipeline.A wherein pipeline is directly communicated to β rays test module 17, and another first passes through cutter 1 and be passed through β rays test mould again
Block 17.Each part is connected by pipeline, and pipeline import and export is respectively equipped with controllable valve Control experiment gas in a device
Position and circulating direction.
The embodiment of the present invention is used for the control system of realization device automatic running, built-in testing programme-control all parts
Start and stop, the switch of each pipe valve, the procedure operation and SECO of each part.As shown in Fig. 2 school is controlled by master controller
The operation of quasi-ordering, all the sensors signal, input unit and data acquisition signal are input signal.Sensor signal is used
In the working condition for indicating each executing agency, input unit is used to input test parameters, and data acquisition signal is used to receive β rays
The data signal under test of test module.Controller exports control signal to the related executing agency of calibrating installation, motor driving
The devices such as device, valve.With controlling the communication module being connected mainly to send test data and data processor to data point
Analysis system, calibration result is obtained by the processing of analysis system.The embodiment of the present invention is used for the data analysis of repairing experiment data
System, primarily with regard to the computational methods of gas concentration, and result output display device.
The present embodiment also provides a kind of cutter calibration method, as shown in figure 3, this method is used for above-mentioned cutter calibration cartridge
In putting, comprise the following steps：
Cutter to be calibrated is loaded cutter mounting seat by S1, then opens described cutter calibrating installation, is entered
Initialization prepares, and now clean gas generator work produces a large amount of clean gas, residual in mixed cabin and sample chamber for cleaning
Remaining particulate matter, cleaning are completed to close all valves, and system enters ready states.The step mainly completes the preparation before experiment
Work.
Enough particulate matters to be tested are put into particulate matter storing and feeding device by S2, setting test gas concentration, warm and humid
The parameters such as degree, flow velocity simultaneously start calibrating installation, and clean gas generator is opened with particulate matter storing and feeding device according to setting concentration
Begin transmission material.Now mixed cabin inner space is in compressive state, and clean gas sprays into quantitative particulate matter in mixed cabin.
S3 mixed cabins produce air-flow and are used for uniform hybrid particles thing and clean gas, while sample chamber is slowly to outside mixed cabin
Portion moves, and mixed cabin volume becomes larger.The air-flow for not only having clean gas to spray in mixed cabin now also has cabin interior air-flow
Air-flow auxiliary particle thing and the clean gas mixing that aperture sprays.Air-flow aperture gas in mixed cabin is derived from mixed cabin, is
Mixed cabin interior air-flow circulates, and does not influence clean gas into total tolerance in cabin.
S4 thermo hydrograph regulators and electrostatic adjuster, which are started working, adjusts the humiture and electrostatic parameters of forming gas.The step
Suddenly synchronously completed in mixed process, it is necessary to which cabin interior air-flow is circulated to accelerate humiture and electrostatic governing speed.
S5 treats that gas mixing is uniform, closes mixed cabin internal gas flow and the valve outside all connect, and opens on sample chamber
The valve connected with mixed cabin, while sample bin starts slowly to move into mixed cabin, compression mixed cabin volume causes gaseous mixture
Body is flowed into sample bin.The step is that the gas for mixing completion is transferred into sample chamber from mixed cabin, it is contemplated that nacelle volume has
Limit, the setting of sample chamber are intended to the gaseous sample that storage mixing is completed so that mixed cabin can be continuously after gas is discharged
Manufacture test gas.
After S6 band gases fully enter mixed cabin inside, 20 seconds are stood, then samples the commutation valve regulation of output channel
To β ray test modules are directly output to, sampling output channel valve is opened, the mobile extrusion into sample chamber of sample chamber piston is treated
The sample gas of experiment, by β ray test module test sample gas particles thing concentration.The step is the sampling of test gas
Journey, the conveying of sample gas is realized using piston to sample chamber compression, and control piston traveling speed determines gas in export pipeline
Flow velocity.The test of this step is not cleaved gas particles thing concentration.
S7 adjustable change valves continue to move to piston, residual gas conveying are passed through into cutter, by cutting to cutter passage
β ray test modules, which are delivered the gas to, after device cutting filtering measures gas particles thing concentration after cutting.The step key is
The pipeline selection of reversal valve, gas are now directed to cutter end, and gas is discharged from sample chamber passes through cutter with certain flow rate
To carry out detection calibration to cutter.
S8 β rays test modules send the data measured twice to data analysis system, inner setting calculation formula,
Calibration test result is drawn after calculating and comparing.The step is mainly the internal calculation process of test system, by comparing two
The data of secondary measurement, draw test result, so as to judge whether cutter cuts effect is accurate.
Above disclosed is only the preferred embodiments of the present invention, it is impossible to the right model of the present invention is limited with this
Enclose, the equivalent variations made according to scope of the present invention patent, still belong to the scope that the present invention is covered.
Claims (10)
- A kind of 1. portable cutter for particles fast calibration device, it is characterised in that：Including particulate matter storing and feeding device (15), clean gas generator (11), mixing nacelle (7), sample nacelle (5), cutter mounting seat (2), β ray test modules (17), automatic control system, data analysis system.
- 2. portable cutter for particles fast calibration device as claimed in claim 1, it is characterised in that：The mixing nacelle (7) mutually embedding with sample nacelle (5), mixed cabin (7) seals Single port by sample chamber (5), and sample chamber (5) can relative mixed cabin (7) axially move, piston (6) sealed sample cabin (5) and can be axially moved in sample chamber, therefore above-mentioned two nacelle All there is the characteristics of variable volume, sample chamber (5) have controllable valve (19) be used for control two nacelles between connection.
- 3. portable cutter for particles fast calibration device as claimed in claim 1, it is characterised in that：The clean gas Generator (11) and particulate matter storing and feeding device (15) are arranged on one end of mixed cabin (7), for by clean gas and particle Thing spirt mixed cabin (5)；Mixed cabin (7) inwall is provided with breeder tube (12), for producing small air-flow in mixed cabin (5), Auxiliary gas and particulate matter uniformly mix.
- 4. portable cutter for particles fast calibration device as claimed in claim 1, it is characterised in that：The mixing nacelle (7) the internal physical characteristic condition for being used for Control experiment gas equipped with thermo hydrograph regulator (16) and electrostatic adjuster (14).
- 5. portable cutter for particles fast calibration device as claimed in claim 1, it is characterised in that：The clean gas Generator (11) can obtain source of the gas from air or sample chamber (5), and by its filtration, purification, be then sent to mixed cabin.
- 6. portable cutter for particles fast calibration device as claimed in claim 1, it is characterised in that：The sample chamber (5) it is connected with cutter mounting seat (2) and β rays test module (17), sample chamber gas outlet duct is divided into two, by changing Gas is individually directed different output pipes to valve (3), wherein a pipeline is directly communicated to β rays test module (17), it is another Bar first passes through cutter (1) and is passed through β rays test module (17) again.
- 7. portable cutter for particles fast calibration device as claimed in claim 1, it is characterised in that：The calibrating installation Each part is connected by pipeline, and pipeline import and export is respectively equipped with controllable valve (10), (13), (19) Control experiment gas exist Position and circulating direction in device.
- 8. portable cutter for particles fast calibration device as claimed in claim 1, it is characterised in that also include being used in fact The control system of existing device automatic running, for controlling the start and stop of all parts, the switch of each pipe valve, the flow of each part Change operation and SECO.
- 9. portable cutter for particles fast calibration device as claimed in claim 1, it is characterised in that also include for whole The data analysis system of test data is managed, the gas concentration data successively gathered in β ray test modules are converted, compared To, calculate, result matching and result output.
- 10. a kind of cutter calibration method, it is characterised in that use portable cutter for particles as claimed in claim 1 Fast calibration device is calibrated to cutter, is comprised the following steps,(1) cutter to be calibrated is loaded into cutter mounting seat, then beaten the cutter calibrating installation described in claim 1 Open, prepare into initialization, now clean gas generator work produces a large amount of clean gas, for cleaning mixed cabin and sample Remaining particulate matter in cabin, cleaning are completed to close all valves, and system enters ready states；(2) enough particulate matters to be tested are put into particulate matter storing and feeding device, setting test gas concentration, humiture, The parameters such as flow velocity simultaneously start calibrating installation, and clean gas generator starts to pass with particulate matter storing and feeding device according to setting concentration Send material；(3) mixed cabin produces air-flow and is used for uniform hybrid particles thing and clean gas, while sample chamber is slowly to outside mixed cabin Mobile, mixed cabin volume becomes larger；(4) thermo hydrograph regulator and electrostatic adjuster, which are started working, adjusts the humiture and electrostatic parameters of forming gas；(5) treat that gas mixing is uniform, close mixed cabin internal gas flow and the valve outside all connect, open on sample chamber with mixing The valve of cabin connection is closed, while sample bin starts slowly to move into mixed cabin, compression mixed cabin volume causes mixed gas stream Enter in sample bin；(6) after band gas fully enters mixed cabin inside, 20 seconds are stood, then samples the commutation valve regulation of output channel to straight Connect and be output to β ray test modules, open sampling output channel valve, the mobile extrusion into sample chamber of sample chamber piston is to be tested Sample gas, by β ray test module test sample gas particles thing concentration；(7) adjustable change valve continues to move to piston, residual gas conveying is passed through into cutter, by cutter to cutter passage β ray test modules, which are delivered the gas to, after cutting filtering measures gas particles thing concentration after cutting；(8) β rays test module sends the data measured twice to data analysis system, inner setting calculation formula, warp Cross after calculating compares and draw calibration test result.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193466.8A CN107860598B (en) | 2017-11-24 | 2017-11-24 | Portable rapid calibrating device and method for particulate matter cutter |
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|---|---|---|---|
| CN201711193466.8A CN107860598B (en) | 2017-11-24 | 2017-11-24 | Portable rapid calibrating device and method for particulate matter cutter |
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| CN107860598B CN107860598B (en) | 2023-04-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060456A (en) * | 2018-07-13 | 2018-12-21 | 中国环境科学研究院 | A kind of caliberating device and method of fixed source diluting channel sample device |
| CN113358422A (en) * | 2021-07-14 | 2021-09-07 | 马钢奥瑟亚化工有限公司 | Method for producing and preparing coal tar pitch |
| CN117388136A (en) * | 2023-08-29 | 2024-01-12 | 中国矿业大学 | Self-calibration portable oscillating balance dust detector and use method thereof |
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| CN107860598B (en) | 2023-04-07 |
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