CN108663297A - Atmospheric particulates sample lines integrate quality control system - Google Patents
Atmospheric particulates sample lines integrate quality control system Download PDFInfo
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- CN108663297A CN108663297A CN201810638117.0A CN201810638117A CN108663297A CN 108663297 A CN108663297 A CN 108663297A CN 201810638117 A CN201810638117 A CN 201810638117A CN 108663297 A CN108663297 A CN 108663297A
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- gas circuit
- gas
- quality control
- dynamic
- control system
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- 238000003908 quality control method Methods 0.000 title claims abstract description 12
- 239000000523 sample Substances 0.000 claims abstract description 59
- 239000002245 particle Substances 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims 1
- 238000012937 correction Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 6
- 239000013618 particulate matter Substances 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- 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
- G01N1/34—Purifying; Cleaning
-
- 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
- G01N1/42—Low-temperature sample treatment, e.g. cryofixation
-
- 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
- G01N1/44—Sample treatment involving radiation, e.g. heat
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of Atmospheric particulates sample lines to integrate quality control system, technical solution includes the particle size cutting head being located outside, positioned at indoor analytical instrument and the first gas circuit, the input end of first gas circuit connects particle size cutting head, outlet end linking parsing instrument, the outdoor pipeline portions of first gas circuit are additionally provided with outdoor line temperature probe, interior conduit part is equipped with dynamic attemperator and electric-controlled ball valve successively along airintake direction, the first gas circuit pipe road where the dynamic attemperator is additionally provided with interior conduit temp probe, the output end of the outdoor line temperature probe and interior conduit temp probe is all connected with the input terminal of system control chip, the output end of the system control chip is separately connected dynamic attemperator and electric-controlled ball valve.The configuration of the present invention is simple is easy to transformation, can effectively keep that sample gas temperature is constant, has the function of zero correction, high certainty of measurement, flexibility and reliability.
Description
Technical field
The present invention relates to air purification field, specifically a kind of Atmospheric particulates sample lines integrate quality control system.
Background technology
Atmospheric particulates, especially fine particle (PM2.5) major issue for having become facing mankind is polluted, it is various to big
The instrument of aerated particle object analysis comes into being, and is widely used, but in practical application in, can be asked in the presence of some
Topic；1) high in summer outdoor temperature, room conditioning causes indoor tube wall temperature low, and the high sample gas of temperature is got in, and meets
The tube wall low to temperature, the steam in sample gas can condense rapidly, this has prodigious shadow to the service life of instrument and the quality of data
It rings；2) when outside winter room sample gas temperature it is low, after getting in, encounter the relatively high tube wall of temperature, can cause unstable
Ingredient volatilization；3) it is used for the instrument of particle sampling, in order to ensure that quality of data needs are periodically demarcated, usually each
No. 1 progress at month beginning of the month, but many instruments and the more old instrument of model do not have the function of automatic zero point calibration, manually
Demarcate time-consuming and laborious, cost of labor is very high；4) many instruments cannot carry out automatic flow monitoring, not protected to the quality of data
Barrier；5) it is empty can not to accomplish to monitor in real time the temperature and humidity of sample gas this two observations/analysis environment for most instruments
The important indicator of gas；6) valve of control gas circuit has not been verified, and solenoid valve can cause the loss of particulate matter, ball valve that can have
Effect avoids this problem；7) the system of entire pipeline comprehensive control management and control chip not can not achieve automatic or remote
Process control/switching gas circuit can not receive the operating status of each monitoring device and remotely check observed result.These problems are to instrument
The quality of device and data produces serious influence, and this is the problem of most monitoring stations can all encounter again, solves this
A little problems are very urgent, can not only reduce manpower and materials cost, most importantly can effectively improve the quality of data.
Invention content
The purpose of the present invention is to solve above-mentioned technical problem, provide it is a kind of it is simple in structure, be easy to transformation, can be effective
Holding sample gas temperature is constant, has the function of zero correction, high certainty of measurement, the Atmospheric particulates sample lines of flexibility and reliability
Comprehensive quality control system.
Technical solution includes the particle size cutting head being located outside, is located at indoor analytical instrument and the first gas circuit,
The input end of first gas circuit connects particle size cutting head, outlet end linking parsing instrument, the room of first gas circuit
Outer pipeline portions are additionally provided with outdoor line temperature probe, interior conduit part be equipped with successively along airintake direction dynamic attemperator and
Electric-controlled ball valve, the first gas circuit pipe road where the dynamic attemperator are additionally provided with interior conduit temp probe, the outdoor
Line temperature pops one's head in and is all connected with the input terminal of system control chip with the output end of interior conduit temp probe, the system control
The output end of chip is separately connected dynamic attemperator and electric-controlled ball valve.
The dynamic attemperator includes refrigerating plant and heating combined equipment.
The heating combined equipment includes the heater strip being wrapped in the first gas circuit, and the refrigerating plant includes being mounted on the first gas
The cooling piece of road.
Further include having the second gas circuit, the both ends of second gas circuit are connect with the both ends of the electric-controlled ball valve respectively, described
Second gas circuit is equipped with solenoid valve and high efficiency particulate air filter successively along gas into direction, and the output end of the system control chip connects electromagnetism
Valve.
Second gas circuit is equipped with solenoid valve, high efficiency particulate air filter and flowmeter successively along gas into direction, the flowmeter
Output end connects the input terminal of system control chip.
The intersection of first gas circuit and the outlet of the second gas circuit is additionally provided with warm and humid probe, and the warm and humid probe output end connects
Welding system controls the input terminal of chip.
The problem of for background technology, inventor is improved as follows：The interior conduit part of (1) first gas circuit
It is additionally arranged dynamic attemperator, there is heating and the cold function of heat, is popped one's head in by interior conduit temp probe and outdoor line temperature
The gas temperature in the first gas circuit of indoor and outdoor is monitored respectively, by system control chip calculating temperature difference, sends out heating or hot cold control
System instruction, is heated or is cooled down to the gas in the first gas circuit, to make the gas temperature into before analytical instrument as far as possible
It is close with the gas temperatures of taken outdoors, it is various caused by indoor/outdoor temperature-difference to solve the problems, such as, improve accuracy of detection and instrument
The device service life.Valve selection in (2) first gas circuits uses electric-controlled ball valve replacement of solenoid valve, is proved through many experiments, in solenoid valve
It is broken line type access, particulate matter can be made to collide, lead to the loss of particulate matter, and be straight-through road in ball valve, particulate matter will not be caused
Loss, accuracy of detection can be further increased.(3) increase the second gas circuit for zero calibration, by close electric-controlled ball valve,
Opens solenoid valve, open second gas circuit, is sent into analytical instrument after high efficiency particulate air filter purifies by sampled air, can be used for zero school
Just, due to introducing be same thief hatch gas, and the first gas circuit and the second gas circuit are mutual indepedent, will not interfere with each other,
Correction reliability is high, also greatly reduces manpower and materials.(4) flowmeter is also provided in the second gas circuit, further to analysis
The flow of instrument is corrected, and ensures the quality of data；(5) each detection device and valve are connect with system control chip, can be real
It now automatically controls, also provides safeguard for remote control and monitoring.(6) intersection exported in first gas circuit and the second gas circuit
Warm and humid probe is added, detection enters the temperature and humidity data of gas before analytical instrument, and more ginsengs are provided for later data analysis
It examines.
The configuration of the present invention is simple, setting flexibly control it is easy, convenient for being transformed to existing pipeline, zero can be carried out automatically
It demarcates, the sample gas in gas circuit is constant with outdoor temperature indoors, service life of equipment is long, accuracy of detection and reliability are high,
It is time saving and energy saving, it has broad application prospects.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Wherein, 1- particle sizes cutting head, line temperature probe, 3- dynamics attemperator, 4- interior conduits outside the rooms 2-
The warm and humid probe of temp probe, 5- solenoid valves, 6- electric-controlled ball valves, 7- high efficiency particulate air filters, 8- flowmeters, 9-, 10- systems control core
Piece, the first gas circuits of 11-, the second gas circuits of 12-, 13- analytical instrument.
Specific implementation mode
It says below in conjunction with the accompanying drawings and explanation is further explained to the present invention：
The present invention is equipped with along airintake direction in first gas circuit 11 successively including the first gas circuit 11 and the second gas circuit 12
Particle size cutting head 1, the outdoor line temperature probe 2 being located outside, are located at indoor dynamic attemperator 4, automatically controlled ball
Valve 6 and analytical instrument 13 are additionally provided with interior conduit temp probe 3 on the pipeline of the first gas circuit 11 where dynamic attemperator 4,
The dynamic attemperator 4 includes refrigerating plant and heating combined equipment, and the heating combined equipment includes being wrapped in 11 pipeline of the first gas circuit
On heater strip, the refrigerating plant includes the cooling piece being mounted on 11 pipeline of the first gas circuit.
The connection with 6 both ends of the electric-controlled ball valve respectively of the both ends of second gas circuit 12, along gas into direction, described second
Gas circuit 12 is equipped with solenoid valve 5 and high efficiency particulate air filter 7 and flowmeter 8 successively, the outlet of first gas circuit, 11 and second gas circuit 12
Intersection is additionally provided with warm and humid probe 9.
The outer pipeline temp probe 2 of other point of connection of the input terminal of system control chip 10, interior conduit temp probe 3, flow
9 connection of meter 8 and warm and humid probe, output end are connect with electric-controlled ball valve 6 and solenoid valve 5 respectively.
Operation principle：
When normal sample state：The output control signal of system control chip 10 opens electric-controlled ball valve 6, closes solenoid valve 5, adopts
Sample gas is sent into the first gas circuit 11 through particle size cutting head 1 and is got in through the feeding analytical instrument of electric-controlled ball valve 5 by outdoor
13, wherein the sample gas temperature being located outside in 2 the first gas circuits of synchronous acquisition 11 of outdoor line temperature probe in the pipeline of part
Degree, the acquisition of interior conduit temp probe 3 are located at the sample gas temperature in indoor section pipeline, and temperature signal is sent into system control
Chip 10 carries out calculating analysis, and exports control signal to dynamic attemperator 4, specially：When interior conduit temp probe 3 is adopted
When the gas temperature angle value collected is less than outdoor line temperature probe 2, then the signal of heating, letter that is on the contrary then exporting refrigeration are exported
Number, the sample gas in the first gas circuit 11 is heated or cooled down, to ensure the sampling gas of the acquisition of interior conduit temp probe 3
The difference for the sample gas temperature value that body temperature angle value is acquired with outdoor line temperature probe 2 within a predetermined range, is realized to the first gas
The dynamic heat insulation effect of sample gas in road 11.Further, humiture probe 9 goes back synchronous acquisition and enters adopting before analytical instrument
The temperature and humidity of sample gas obtains this important parameter, plays an important roll to data quality control.
It when correcting state, is preset in system control chip 10 correction time, No. 1 zero such as in every month is (when Beijing
Between) system control chip 10 control open solenoid valve 5, close electric-controlled ball valve 6, sample gas first through the first tracheae 11 by outdoor into
Enter in indoor pipeline, subsequently into the second gas circuit 12, passes sequentially through solenoid valve 5 and be filtered through high efficiency particulate air filter 7 and got rid of
Particulate matter, then enter analytical instrument 13 through flowmeter 8 and carry out automatic zero point correction, while flowmeter 8 is to the stream of analytical instrument 13
Amount is demarcated, and the quality of data and accuracy of detection are improved.
Claims (6)
1. a kind of Atmospheric particulates sample lines integrate quality control system, including be located outside particle size cutting head, be located at
The input end of indoor analytical instrument and the first gas circuit, first gas circuit connects particle size cutting head, outlet end connection
Analytical instrument, which is characterized in that the outdoor pipeline portions of first gas circuit are additionally provided with outdoor line temperature probe, interior conduit
Part is equipped with dynamic attemperator and electric-controlled ball valve, the first gas circuit pipe where the dynamic attemperator successively along airintake direction
Road is additionally provided with interior conduit temp probe, and the output end of the outdoor line temperature probe and interior conduit temp probe connects
Welding system controls the input terminal of chip, and the output end of the system control chip is separately connected dynamic attemperator and automatically controlled ball
Valve.
2. Atmospheric particulates sample lines as described in claim 1 integrate quality control system, which is characterized in that the dynamic heat preservation
Device includes refrigerating plant and heating combined equipment.
3. Atmospheric particulates sample lines as claimed in claim 2 integrate quality control system, which is characterized in that the heating combined equipment
Including the heater strip being wrapped in the first gas circuit, the refrigerating plant includes the cooling piece being mounted in the first gas circuit.
4. Atmospheric particulates sample lines as described in any one of claims 1-3 integrate quality control system, which is characterized in that also wrap
The second gas circuit is included, the both ends of second gas circuit are connect with the both ends of the electric-controlled ball valve respectively, and second gas circuit is along gas
It is equipped with solenoid valve and high efficiency particulate air filter successively into direction, the output end of the system control chip connects solenoid valve.
5. Atmospheric particulates sample lines as claimed in claim 4 integrate quality control system, which is characterized in that second gas circuit
It is equipped with solenoid valve, high efficiency particulate air filter and flowmeter successively into direction along gas, the output end connection system of the flowmeter controls core
The input terminal of piece.
6. Atmospheric particulates sample lines as claimed in claim 4 integrate quality control system, which is characterized in that first gas circuit
It is additionally provided with warm and humid probe, the input of the warm and humid probe output end connection system control chip with the intersection of the second gas circuit outlet
End.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810638117.0A CN108663297A (en) | 2018-06-20 | 2018-06-20 | Atmospheric particulates sample lines integrate quality control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810638117.0A CN108663297A (en) | 2018-06-20 | 2018-06-20 | Atmospheric particulates sample lines integrate quality control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108663297A true CN108663297A (en) | 2018-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810638117.0A Pending CN108663297A (en) | 2018-06-20 | 2018-06-20 | Atmospheric particulates sample lines integrate quality control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631970A (en) * | 2019-09-16 | 2019-12-31 | 合肥福瞳光电科技有限公司 | Dynamic heating system and atmosphere ultrafine particle detector |
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| CN208537352U (en) * | 2018-06-20 | 2019-02-22 | 暨南大学 | Atmospheric particulates sample lines integrate quality control system |
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2018
- 2018-06-20 CN CN201810638117.0A patent/CN108663297A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252930A (en) * | 2011-06-02 | 2011-11-23 | 广东省环境监测中心 | Quasi constant weight weighing apparatus and method for monitoring mass concentration of atmospheric particulates by utilizing oscillation balance method |
| CN202916165U (en) * | 2012-10-09 | 2013-05-01 | 武汉怡特环保科技有限公司 | Instrument for continually and automatically monitoring atmospheric fine-particulates by adopting Beta ray method |
| CN103018146A (en) * | 2012-11-29 | 2013-04-03 | 安徽蓝盾光电子股份有限公司 | PM2.5 monitor with aerosol humidity controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110631970A (en) * | 2019-09-16 | 2019-12-31 | 合肥福瞳光电科技有限公司 | Dynamic heating system and atmosphere ultrafine particle detector |
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