CN106769264A - One kind dilution particle sampler and its method for sampling - Google Patents
One kind dilution particle sampler and its method for sampling Download PDFInfo
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- CN106769264A CN106769264A CN201710164297.9A CN201710164297A CN106769264A CN 106769264 A CN106769264 A CN 106769264A CN 201710164297 A CN201710164297 A CN 201710164297A CN 106769264 A CN106769264 A CN 106769264A
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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
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
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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
- G01N1/2247—Sampling from a flowing stream of gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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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
- G01N1/2247—Sampling from a flowing stream of gas
- G01N2001/2264—Sampling from a flowing stream of gas with dilution
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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
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
- G01N2001/386—Other diluting or mixing processes
- G01N2001/387—Other diluting or mixing processes mixing by blowing a gas, bubbling
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- General Health & Medical Sciences (AREA)
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- General Physics & Mathematics (AREA)
- Immunology (AREA)
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- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of dilution particle sampler and its method for sampling of environment monitoring Instrument technology field,Including sampling mouth,Two groups of Pitot tubes and temperature sensor,The right-hand member of the sampling mouth is provided with sample gas air inlet pipe,And heating tape is installed on the outer wall of sample gas air inlet pipe,The right-hand member of the sample gas air inlet pipe is provided with flow sensor,And there is diluter on the right side of flow sensor by Pipe installing,The right-hand member of the diluter connects the entrance of chamber by pipeline,And the outlet right side of chamber connects cutter for particles by pipeline,Temperature sensor and pressure sensor are provided with the left of the cutter for particles,And temperature sensor and pressure sensor electrically export connection single-chip microcomputer,The bottom of the cutter for particles is provided with current divider air inlet pipe,And the bottom connection current divider of current divider air inlet pipe,The bottom of the current divider is provided with current divider escaping pipe,And the bottom of current divider escaping pipe connects sampling membrane by pipeline.
Description
Technical field
The present invention relates to environment monitoring Instrument technology field, specially a kind of dilution particle sampler and its sampling side
Method.
Background technology
In collection waste gas during aerosol sample, because the temperature of waste gas, humidity, concentration are too high, directly in collection waste gas
During particulate matter, have difficulties.After the exhaust gas dilution in sampler will be thus sucked using clean gas, mixed gas is being gathered
Body sample.Its method：While waste gas is gathered, inject clean air and mixed with sample gas, sample gas is diluted, drop
Low its temperature, humidity, concentration, are then carrying out particle sampling, it is achieved thereby that gathering the mesh of aerosol sample from waste gas
's；Published particle sampling method is that flow sensor is concatenated before aspiration pump, is mixed for measuring sample gas, clean gas
The flow of the gas after conjunction；A flow sensor, the flow for measuring clean gas are concatenated in clean feed channel；Because mixed
Gas=sample gas+clean gas is closed, so subtracting clean gas amount by mixed gas flow can simply calculate the flow of sample gas.
Single-chip microcomputer calculates the flow of sample gas according to the flow of gaseous mixture, the flow of clean gas, then according to the stream of the sample gas for calculating
Amount and the extension rate of setting, adjust the feedway of clean gas, control extension rate, so as to reach particle in collection waste gas
The purpose of thing sample.Because before the flow sensor and aspiration pump in clean feed channel concatenate flow sensor occur it is certain
Error, therefore the flow value error of the sample throughput calculated by both can be amplified because of extension rate, influence gaseous mixture
Extension rate, and then influence the precision of dilution tunnel particulate matter film sampling；It is that 32,5L/min sample gas needs mixing with extension rate
The clean gas of 155L/min, as a example by obtaining 160L/min gaseous mixtures：When the flow sensor error rate of flow is 5%；Then predict
The actual flow of clean gas is subtracted by gaseous mixture and is totally so incensed that sample air-flow between 147.25L/min-162.75L/min
Amount, it may appear that during actual samples, the situation of the flow of sample gas between 0 L/min -12.75L/min.Cause actual thinner ratio
Deviate setting thinner ratio or the situation of sample gas could not be collected；Published particle sampling method be before an aspiration pump simultaneously
Join two or more sampling membranes, this causes in the two or multiple sampling membranes, the gas that the small sampling membrane of resistance passes through
Body flow is big, the small situation of the gas flow that the big sampling membrane of resistance passes through, and then influences the degree of accuracy of sampling；Therefore, I
Propose a kind of dilution particle sampler and its method for sampling.
The content of the invention
It is an object of the invention to provide one kind dilution particle sampler and its method for sampling, to solve above-mentioned background skill
In the two or more sampling membranes proposed in art, the gas flow that the small sampling membrane of resistance passes through is big, the big sampling of resistance
The small situation of gas flow that filter membrane passes through, and then influence the problem of the degree of accuracy of sampling.
To achieve the above object, the present invention provides following technical scheme：One kind dilution particle sampler, including sampling
Mouth, two groups of Pitot tubes and temperature sensor, the right-hand member of the sampling mouth are provided with sample gas air inlet pipe, and sample gas air inlet pipe outer wall
On heating tape is installed, the right-hand member of the sample gas air inlet pipe is provided with flow sensor, and flow sensor right side by pipe
Road is provided with diluter, and the right-hand member of the diluter connects the entrance of chamber by pipeline, and the outlet right side of chamber is logical
Piping connects cutter for particles, and temperature sensor and pressure sensor are provided with the left of the cutter for particles, and
Temperature sensor and pressure sensor electrically export connection single-chip microcomputer, and the bottom of the cutter for particles is provided with current divider and enters
Tracheae, and the bottom of current divider air inlet pipe connects current divider, the bottom of the current divider is provided with current divider escaping pipe, and shunting
The bottom of device escaping pipe connects sampling membrane by pipeline, and the bottom of the sampling membrane is connected with inner cone flow by pipeline
Meter, and the bottom of cone flowmeter is connected with aspiration pump by pipeline, the aspiration pump is electrically connected with single-chip microcomputer, described in two groups
The right-hand member of Pitot tube connects threeway and pipeline dynamic pressure force snesor by pipeline respectively, and two outlets of the threeway pass through respectively
Connecting pipe of pipeline road static pressure sensor and pipeline dynamic pressure force snesor, and connecting pipe of pipeline road static pressure sensor and pipeline are dynamic
Pressure sensor is electrically connected with single-chip microcomputer, and RTD, and RTD and monolithic are connected with the right side of the temperature sensor
Machine is electrically connected with, and the single-chip microcomputer electrically exports connection dilution air, and the upper and lower ends of dilution air are connected by pipeline respectively
Condenser volume filter is connect, the single-chip microcomputer is electrically connected with flow sensor, keyboard, display and communication interface.
Preferably, the single-chip microcomputer electrically exports connection display by display module, and single-chip microcomputer passes through wireless receiving and dispatching
Module is electrically connected with keyboard.
Preferably, the current divider escaping pipe be four groups of identical, and four groups of current divider escaping pipes by sampling membrane with
Four groups of equivalent aspiration pump connections.
A kind of method of sampling for diluting particle sampler, the method for sampling of the dilution particle sampler includes following step
Suddenly：
S1：Remove particulate in air：Air is by being converted into clean gas after filter, dilution air, condenser；
S2：Collection sample gas：After sample gas enters sampling mouth, diluter is entered by sample gas air inlet pipe, flow sensor, while heating
Band is heated to air inlet pipe, and single-chip microcomputer is transferred to after flow sensor measurement sample throughput, and waste gas is passed to pipe by Pitot tube
Road static pressure sensor, pipeline dynamic pressure force snesor predict in pipeline the flow of waste gas and transfer data to single-chip microcomputer；
S3：Diluter mixes：Sample gas and clean gas are mixed into carrier gas in diluter；
S4：Particulate matter cuts：Carrier gas is in cutter for particles by particle size more than cutter for particles incising control
Particulate separation out, while temperature sensor, pressure sensor gather the temperature and flow of carrier gas, and is transferred data to
Single-chip microcomputer；
S5：Data acquisition：By flow sensor, temperature sensor, cone flowmeter, duct static pressure force snesor, pipeline dynamic pressure
The data that force snesor, temperature sensor and pressure sensor are transferred to single-chip microcomputer are contrasted by display；
S6：Draw a conclusion：By the contrast of data obtain precision that the dilution tunnel particulate matter film that the method collects samples compared with
For accurate.
Compared with prior art, the beneficial effects of the invention are as follows：The dilution particle sampler and its method for sampling, can be certainly
The change of motion tracking gas in pipelines flow, implements isokinetic sampling；Single-chip microcomputer is according to sample throughput, carrier gas flow, dilution times
Number adjustment clean gas amount, solves the problems, such as the monitoring actual extension rate of control；Can be by high humidity, high temperature, height using diluter
Sample is gathered after the gas treatment of concentration；Increase current divider and PM2.5 cutter for particles after PM10 cutters, be capable of achieving sample
PM10, PM2.5 constant current cascade sampling simultaneously in gas, and because in current divider sample it is uniform, an interior coning tower tray is concatenated after each filter membrane
Gauge, so the uniformity of each sample is good, sampling volume is clear and definite；It is capable of achieving Automatic change film；Flue negative pressure suck-back can be prevented；Can
Humidity in automatic real-time measurement pipeline；The concentration of emission and total release of pipeline pollutant can be calculated；It is lightweight, conveniently take
Band, simple to operate, automation and intelligentification level are high.Device of the invention is also applied for gathering other specified particle diameters in pipeline
Grain thing, pernicious gas, flue dust, SVOCs samples and surrounding air.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：1 sampling mouth, 2 sample gas air inlet pipe, 3 Pitot tubes, 4 heating tapes, 5 diluters, 6 cutter for particles, 7 shuntings
Device, 8 sampling membranes, 9 flow sensors, 10 threeways, 11 temperature sensors, 12 cone flowmeters, 13 aspiration pumps, 14 filters,
15 dilution airs, 16 condensers, 17 RTDs, 18 duct static pressure force snesors, 19 pipeline dynamic pressure force snesors, 20 TEMPs
Device, 21 pressure sensors, 22 current divider air inlet pipe, 23 current divider escaping pipes, 24 single-chip microcomputers, 25 keyboards, 26 displays, 27 communications
Interface, 28 chambers.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is referred to, the present invention provides a kind of technical scheme：One kind dilution particle sampler, including sampling mouth 1, two
Group Pitot tube 3 and temperature sensor 11, the right-hand member of the sampling mouth 1 are provided with sample gas air inlet pipe 2, and sample gas air inlet pipe 2 is outer
Heating tape 4 is installed, the right-hand member of the sample gas air inlet pipe 2 is provided with flow sensor 9 on wall, and flow sensor 9 right side
There is diluter 5 by Pipe installing, the right-hand member of the diluter 5 connects the entrance of chamber 28, and chamber 28 by pipeline
Outlet right side by pipeline connection cutter for particles 6, the left side of the cutter for particles 6 is provided with temperature sensor 20
Electrically export and connect single-chip microcomputer 24 with pressure sensor 21, and temperature sensor 20 and pressure sensor 21, the particulate matter is cut
The bottom of cutter 6 is provided with current divider air inlet pipe 22, and the bottom of current divider air inlet pipe 22 connects current divider 7, the current divider 7
Bottom current divider escaping pipe 23 is installed, and the bottom of current divider escaping pipe 23 connects sampling membrane 8 by pipeline, described to adopt
The bottom of sample filter membrane 8 is connected with cone flowmeter 12 by pipeline, and the bottom of cone flowmeter 12 is connected with by pipeline and takes out
Air pump 13, the aspiration pump 13 is electrically connected with single-chip microcomputer 24, and the right-hand member of Pitot tube 3 described in two groups connects three by pipeline respectively
Logical 10 and pipeline dynamic pressure force snesor 19, two outlets of the threeway 10 pass through connecting pipe of pipeline road static pressure sensor respectively
18 and pipeline dynamic pressure force snesor 19, and connecting pipe of pipeline road static pressure sensor 18 and pipeline dynamic pressure force snesor 19 with list
Piece machine 24 is electrically connected with, and the right side of the temperature sensor 11 is connected with RTD 17, and RTD 17 electrically connects with single-chip microcomputer
Connect, electrically output connects dilution air 15 to the single-chip microcomputer 24, and the upper and lower ends of dilution air 15 are connected by pipeline respectively
The volume filter 14 of condenser 16, the single-chip microcomputer 24 is electrically connected with flow sensor 9, keyboard 25, display 26 and communication
Interface 27.
A kind of method of sampling for diluting particle sampler, the method for sampling of the dilution particle sampler includes following step
Suddenly：
S1：Remove particulate in air：Air after filter 14, dilution air 15, condenser 16 by being converted into clean gas；
S2：Collection sample gas：After sample gas enters sampling mouth 1, diluter 5 is entered by sample gas air inlet pipe 2, flow sensor 9, while
Heating tape 4 is heated to air inlet pipe, and single-chip microcomputer 24 is transferred to after the measurement sample throughput of flow sensor 9, and Pitot tube 3 is by waste gas
Duct static pressure force snesor 18, pipeline dynamic pressure force snesor 19 is passed to predict in pipeline the flow of waste gas and transfer data to
Single-chip microcomputer 24；
S3：Diluter mixes：Sample gas and clean gas are mixed into carrier gas in diluter 5；
S4：Particulate matter cuts：Particle size is more than the incising control of cutter for particles 6 by carrier gas in cutter for particles 6
Particulate separation out, while the temperature and flow of temperature sensor 20, pressure sensor 21 collection carrier gas, and by data
It is transferred to single-chip microcomputer 24；
S5：Data acquisition：By flow sensor 9, temperature sensor 11, cone flowmeter 12, duct static pressure force snesor 18, pipe
The data that road dynamic pressure force snesor 19, temperature sensor 20 and pressure sensor 21 are transferred to single-chip microcomputer 24 are entered by display 26
Row contrast；
S6：Draw a conclusion：By the contrast of data obtain precision that the dilution tunnel particulate matter film that the method collects samples compared with
For accurate.
Wherein, the single-chip microcomputer 24 electrically exports connection display 26, and single-chip microcomputer 24 by wireless by display module
Transceiver module is electrically connected with keyboard 25；The current divider escaping pipe 24 is four groups of identical, and four groups of current divider escaping pipes 24
It is connected by the aspiration pump 13 equivalent with four groups of sampling membrane 8.
Operation principle：Staff starts particle sampler, sets extension rate, starts sampling；Sample gas enters sampling
After mouth 1, diluter 5 is entered by sample gas air inlet pipe 2, flow sensor 9；Heating tape 4 is heated to air inlet pipe, flow sensing
Single-chip microcomputer 24 is transferred to after the measurement sample throughput of device 9, waste gas is passed to duct static pressure force snesor 18, pipeline and moved by Pitot tube 3
Pressure sensor 19 predicts in pipeline the flow of waste gas and transfers data to single-chip microcomputer 24.RTD 17 predicts the temperature of waste gas
Degree, and transfer data to single-chip microcomputer 24；Air by being converted into clean gas after filter 14, dilution air 15, condenser 16,
Into diluter 5；Filter 14 removes the particulate matter in air；Dilution air 15 provides the power of air flow, by single-chip microcomputer
24 controls；The temperature of the reduction air of condenser 16, the clean gas of diluted sample gas is can be used for so as to normal air be converted into, and is condensed
Device 16 is controlled sample gas and clean gas in diluter 5 to be mixed into carrier gas by single-chip microcomputer 24；Carrier gas through pipeline, chamber 28,
Cutter for particles 6, current divider air inlet pipe 22, current divider 7, current divider escaping pipe 23, sampling membrane 8, cone flowmeter 12 are taken out
Discharged after air pump 13, each current divider escaping pipe 23 is evacuated with a cone flowmeter 12, of sampling membrane 8, respectively
Pump 13 is connected；Particulate matter point of the carrier gas in cutter for particles 6 by particle size more than the incising control of cutter for particles 6
Separate out and, while the temperature and flow of temperature sensor 20, pressure sensor 21 collection carrier gas, and transfer data to monolithic
Machine 24；Remaining particulate matter flows downward with air-flow, enters current divider 7 by current divider air inlet pipe 22, in current divider escaping pipe
23 points is 4 air-flows, and 4 air-flows connect a sampling membrane 8, the particulate matter in carrier gas is acquired respectively.Collection
After the completion of air-flow continue to flow downward, by cone flowmeters 12,4 flows of air-flow are collected respectively and single-chip microcomputer is transferred to
The summation of 24,4 air-flows is carrier gas flow.Air-flow continues to flow downward, and is discharged after 4 aspiration pumps 13.Aspiration pump 13
The power of carrier gas flowing is provided and is controlled by single-chip microcomputer 24.Single-chip microcomputer 24 monitors sample by flow sensor 9 in running
Throughput, carrier gas flows are monitored by 4 cone flowmeters 12, by sample throughput, carrier gas flow, extension rate meter
Calculating result carries out the operation power of real-time control, adjustment aspiration pump 13 and dilution air 15 to aspiration pump 13 and dilution air 15,
Ensure the extension rate stabilization of carrier gas, it is ensured that by cutter for particles 6 and the carrier gas stability of flow of sampling membrane 8.Fortune
Temperature, flow during row outside 24 pairs of sampling mouths 1 of single-chip microcomputer, carrier gas temperature, flow at cutter for particles 6 carry out reality
When monitoring control, by the power for adjusting condenser 16, it is ensured that the temperature of carrier gas, moisture stable and meet sampling will
Ask.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (4)
1. a kind of dilution particle sampler, including sampling mouth（1）, two groups of Pitot tubes（3）And temperature sensor（11）, its feature
It is：The sampling mouth（1）Right-hand member sample gas air inlet pipe is installed（2）, and sample gas air inlet pipe（2）Outer wall on heating is installed
Band（4）, the sample gas air inlet pipe（2）Right-hand member flow sensor is installed（9）, and flow sensor（9）Right side by pipe
Road is provided with diluter（5）, the diluter（5）Right-hand member chamber is connected by pipeline（28）Entrance, and chamber
（28）Outlet right side cutter for particles is connected by pipeline（6）, the cutter for particles（6）Left side be provided with temperature
Sensor（20）And pressure sensor（21）, and temperature sensor（20）And pressure sensor（21）Electrically output connects single-chip microcomputer
（24）, the cutter for particles（6）Bottom current divider air inlet pipe is installed（22）, and current divider air inlet pipe（22）Bottom
Connection current divider（7）, the current divider（7）Bottom current divider escaping pipe is installed（23）, and current divider escaping pipe（23）'s
Bottom connects sampling membrane by pipeline（8）, the sampling membrane（8）Bottom cone flowmeter is connected with by pipeline
（12）, and cone flowmeter（12）Bottom aspiration pump is connected with by pipeline（13）, the aspiration pump（13）With single-chip microcomputer
（24）It is electrically connected with, Pitot tube described in two groups（3）Right-hand member threeway is connected by pipeline respectively（10）Sensed with pipeline dynamic pressure
Device（19）, the threeway（10）Two outlet respectively pass through connecting pipe of pipeline road static pressure sensor（18）With pipeline dynamic pressure
Sensor（19）, and connecting pipe of pipeline road static pressure sensor（18）With pipeline dynamic pressure force snesor（19）And single-chip microcomputer（24）
It is electrically connected with, the temperature sensor（11）Right side be connected with RTD（17）, and RTD（17）Electrically connect with single-chip microcomputer
Connect, the single-chip microcomputer（24）Electrically output connects dilution air（15）, and dilution air（15）Upper and lower ends respectively by pipe
Road connects condenser（16）Volume filter（14）, the single-chip microcomputer（24）It is electrically connected with flow sensor（9）, keyboard
（25）, display（26）And communication interface（27）.
2. one kind according to claim 1 dilutes particle sampler, it is characterised in that：The single-chip microcomputer（24）By aobvious
Show that module electrically exports connection display（26）, and single-chip microcomputer（24）By radio receiving transmitting module and keyboard（25）It is electrically connected with.
3. one kind according to claim 1 dilutes particle sampler, it is characterised in that：The current divider escaping pipe（24）
It is four groups of identical, and four groups of current divider escaping pipes（24）By sampling membrane（8）With four groups of aspiration pumps being equal to（13）Connection.
4. it is a kind of dilute particle sampler the method for sampling, it is characterised in that：The method of sampling of the dilution particle sampler
Comprise the following steps：
S1：Remove particulate in air：Air is by filter（14）, dilution air（15）, condenser（16）After be converted into it is dry
Net gas；
S2：Collection sample gas：Sample gas enters sampling mouth（1）Afterwards, by sample gas air inlet pipe（2）, flow sensor（9）Into diluter
（5）, while heating tape（4）Air inlet pipe is heated, flow sensor（9）Single-chip microcomputer is transferred to after measurement sample throughput
（24）, Pitot tube（3）Waste gas is passed into duct static pressure force snesor（18）, pipeline dynamic pressure force snesor（19）Predict in pipeline
The flow of waste gas simultaneously transfers data to single-chip microcomputer（24）；
S3：Diluter mixes：In diluter（5）Middle sample gas and clean gas are mixed into carrier gas；
S4：Particulate matter cuts：Carrier gas is in cutter for particles（6）Particle size is more than cutter for particles（6）Cutting
The particulate separation of particle diameter out, while temperature sensor（20）, pressure sensor（21）The temperature and flow of carrier gas are gathered,
And transfer data to single-chip microcomputer（24）；
S5：Data acquisition：By flow sensor（9）, temperature sensor（11）, cone flowmeter（12）, duct static pressure sensing
Device（18）, pipeline dynamic pressure force snesor（19）, temperature sensor（20）And pressure sensor（21）It is transferred to single-chip microcomputer（24）'s
Data pass through display（26）Contrasted；
S6：Draw a conclusion：By the contrast of data obtain precision that the dilution tunnel particulate matter film that the method collects samples compared with
For accurate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710164297.9A CN106769264A (en) | 2017-03-20 | 2017-03-20 | One kind dilution particle sampler and its method for sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710164297.9A CN106769264A (en) | 2017-03-20 | 2017-03-20 | One kind dilution particle sampler and its method for sampling |
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| Publication Number | Publication Date |
|---|---|
| CN106769264A true CN106769264A (en) | 2017-05-31 |
Family
ID=58967132
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710164297.9A Withdrawn CN106769264A (en) | 2017-03-20 | 2017-03-20 | One kind dilution particle sampler and its method for sampling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008082A (en) * | 2017-12-21 | 2018-05-08 | 中冶长天国际工程有限责任公司 | A kind of saliferous gas or SRG gas detecting systems, parsing Tower System and saliferous gas or SRG gas detection methods |
| CN108169101A (en) * | 2018-01-18 | 2018-06-15 | 广州纤维产品检测研究院 | A kind of haze window screening filter effect test device and test method |
| CN112611610A (en) * | 2020-11-27 | 2021-04-06 | 南京波瑞自动化科技有限公司 | Dilution heating type particulate matter constant speed sampling device with temperature compensation |
-
2017
- 2017-03-20 CN CN201710164297.9A patent/CN106769264A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008082A (en) * | 2017-12-21 | 2018-05-08 | 中冶长天国际工程有限责任公司 | A kind of saliferous gas or SRG gas detecting systems, parsing Tower System and saliferous gas or SRG gas detection methods |
| CN108008082B (en) * | 2017-12-21 | 2023-11-10 | 中冶长天国际工程有限责任公司 | Salt-containing gas or SRG gas detection system, analytic tower system and salt-containing gas or SRG gas detection method |
| CN108169101A (en) * | 2018-01-18 | 2018-06-15 | 广州纤维产品检测研究院 | A kind of haze window screening filter effect test device and test method |
| CN108169101B (en) * | 2018-01-18 | 2023-12-19 | 广州纤维产品检测研究院 | Anti-haze window screening filtering effect testing device and testing method |
| CN112611610A (en) * | 2020-11-27 | 2021-04-06 | 南京波瑞自动化科技有限公司 | Dilution heating type particulate matter constant speed sampling device with temperature compensation |
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Application publication date: 20170531 |