CN104655533A - Two-channel automatic particulate monitoring device - Google Patents

Two-channel automatic particulate monitoring device Download PDF

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Publication number
CN104655533A
CN104655533A CN201310577377.9A CN201310577377A CN104655533A CN 104655533 A CN104655533 A CN 104655533A CN 201310577377 A CN201310577377 A CN 201310577377A CN 104655533 A CN104655533 A CN 104655533A
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China
Prior art keywords
binary channels
particle
air intake
sampling
channel
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Pending
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CN201310577377.9A
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Chinese (zh)
Inventor
石冰鑫
李景云
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ZHONGSHAN OMAC INSTRUMENT Co Ltd
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ZHONGSHAN OMAC INSTRUMENT Co Ltd
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Priority to CN201310577377.9A priority Critical patent/CN104655533A/en
Publication of CN104655533A publication Critical patent/CN104655533A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a two-channel automatic particulate monitoring device. The two-channel automatic particulate monitoring device comprises a two-channel particulate using module and a two-channel atmospheric particulate detection module. The two-channel particulate using module comprises a sampling gas pump, a gas-flow-ratio adjusting valve and a two-channel particulate sampler. Gas enters the two-channel particulate sampler via the gas-flow-ratio adjusting valve under the action of the sampling gas pump. The two-channel atmospheric particulate detection module comprises two detection channels, a filter paper tape, a filter paper tape supporting structure and a detection platform, wherein each detection channel comprises a sample gas path, a detector and a radioactive source. The monitoring device has a simple structure, realizes rapid and accurate sampling, effectively improves the sampling quality of an atmospheric particulate sampling system and can simultaneously measure the concentrations of particulates with two different particle sizes, i.e., PM10 and PM2.5, in the atmospheric environment.

Description

A kind of binary channels particle automated watch-keeping facility
Technical field
The present invention relates to checkout equipment technical field, refer in particular to a kind of binary channels particle automated watch-keeping facility.
Background technology
Atmospheric environment has vital impact to the life of people and health, and the monitoring therefore for the particle in atmospheric environment is also particularly important.For a long period, PM10 pellet is the emphasis of the monitoring of atmospheric environment always, and PM2.5 fine particle is mainly collected for scientific research, and therefore the conventional fine particle sampling thief used is all low discharge at present.But along with going deep into of scientific research, after the physicochemical property of people to fine particle has had further understanding, find that these aerodynamic diameters are less than the impact of particle on human respiratory of 2.5 μm larger.Because the aerial fine particle that suspends often adsorbs some to the healthy material had an impact of people as bacterium, virus, harmful chemical etc., and volume is little, the speed of natural subsidence is slow, to be directly inhaled into and the probability be deposited in alveolar is very large by breathing.Research shows, according to research city, 6, eastern united states being reached to 8 years, being less than 10 μm (PM10) and being less than the particulate solubility of 2.5 μm (PM2.5) in the daily mortality in these cities and air is closely related, especially the highest with the fine particle degree of correlation of PM2.5, average solubility as PM2.5 particle only increased by 10 μ g/m3 in two days, and mortality ratio just will be caused to increase by 1.5%; For cardiovascular patient and heart patient, mortality ratio increase is faster, is respectively 3.3% and 2.1%.Carry out investigating and monitoring result also confirms at the fine particle in the cities such as China Guangzhou, Wuhan, Lanzhou, Chongqing, to Health Impact maximum be that in air, fine particle thing pollutes.
It is chronic that PM10 continues in surrounding air, creates a great impression, after being sucked, can be accumulated in respiratory system by people, cause numerous disease to health and atmospheric visibility.PM2.5 is relative to PM10, and be more easily suspended in aerial for a long time, PM10 can enter nasal cavity and the tracheae of people, and PM2.5 is except entering lung, can also enter alveolar even blood.Cause lung and systemic inflammatorome, increase the risk of artery sclerosis, blood fat rising, cause cardiac arrhythmia, blood pressure rising etc.And the harm of PM2.5 is multiple, it can form gray haze, reduces visibility, also can influence ecological environment, and by long-distance sand transport, cause regionality or global environmental problem, even affect climate change, what PM10 and PM2.5 had become environmental air quality monitoring must survey parameter.
The automatic monitoring method of current air particle has: β attenuation sensors, micro-oscillating balance method, light scattering method.β attenuation sensors is mainly by measuring ray through carrying out the mass concentration of count particles thing with the loss of filter paper of particle; Trace oscillating balance method is a kind of method going out to be deposited on particle quality on filter membrane by the change calculations of measurement oscillation frequency; Light scattering method mainly utilizes particle directly to realize the measurement of aerosol optical particle diameter to the scattering of light, is a kind of noncontact, online measuring method.
Most of automatic monitor is single channel particle monitoring instrument in the market, can only realize the measurement of a PM10 or PM2.5 parameter, and surveying two parameters needs two instruments, and area occupied is large, and cost is high, and maintenance is large, uses inconvenience.Although also there is relevant binary channels particle automatic detection device in prior art, but this series products also also exists larger defect in reality uses, most important be exactly the sample grading technology of the collection, particularly PM10 and PM2.5 of Atmospheric particulates and the design that adopts this technology to combine with two pick-up unit is the technical barrier that prior art needs improvement badly.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its fundamental purpose is to provide that a kind of structure is simple, sampling quick and precisely, effectively improve the sampling quality of Atmospheric particulates sampling system, the binary channels Atmospheric particulates automated watch-keeping facility of the particle concentration of PM10 and PM2.5 two different-grain diameters in atmospheric environment can be measured simultaneously.
For achieving the above object, the present invention adopts following technical scheme: a kind of binary channels particle automated watch-keeping facility, includes binary channels particle and adopts module and binary channels Atmospheric particulates detection module, wherein:
Described binary channels particle adopts module to include sampling air pump, air-flow ratio adjusting valve and binary channels particle sampler, gas enters binary channels particle sampler by under the effect of air pump of sampling through air-flow ratio adjusting valve, this binary channels particle sampler includes a housing, two controlling of sampling unit are provided with in housing, each controlling of sampling unit includes gas channel, along these gas channel two ends respectively at housing offering air intake opening and gas outlet, described air intake opening place is provided with particle retention device, this particle retention device includes the hollow cover body being covered in aforementioned air intake opening and the baffle plate being positioned at cover body, this cover body has the air intake entered for ambient atmos, this air intake is made up of some intensive through holes, this baffle plate and air intake keep spacing, and this baffle plate just blocks air intake completely to air intake position, forms the gap being communicated with air intake and gas outlet between this baffle plate lateral margin with cover body internal face, described gas outlet is connected with sampling pipe, and this sampling pipe lower end is connected with pipeline adapter,
Described binary channels Atmospheric particulates detection module is made up of two sense channels, a filter-paper-tape and filter-paper-tape supporting construction, detection platform, each sense channel comprises a sample gas path, a detecting device and a radioactive source, the sample gas path of two sense channels adopts the pipeline adapter of module block sampling pipe lower end to be connected respectively with binary channels particle, filter-paper-tape and two sample gas paths perpendicular, the middle part of filter-paper-tape is through between two detecting devices and two radioactive sources.
As a kind of preferred version, described baffle plate upper surface attachment goo.
As a kind of preferred version, baffle plate is provided with the arrangement for adjusting height for controllable register height.
As a kind of preferred version, described arrangement for adjusting height bottom is connected to the center of baffle plate, and the upper end of arrangement for adjusting height is stretched out from cover body air intake center.
As a kind of preferred version, described particle retention device is detachable to be installed on aforementioned housing, and described air-flow ratio adjusting valve is removably installed in particle retention device.
As a kind of preferred version, include Temperature and Humidity Control module further, Temperature and Humidity Control module is by sampling pipe heat block, muff, sample air humidity degree modulator, described sampling pipe heat block and muff thereof cover and are arranged on the sampling pipe periphery that binary channels particle adopts module bottom, and the circuit of sample air humidity degree modulator is connected with the main frame of this pick-up unit.
As a kind of preferred version, described radioactive source is 14c source, detecting device is the direct proportion counter of Geiger tube counter or equivalent effect or matching used scintillator and photomultiplier.
As a kind of preferred version, described filter-paper-tape is glass fibre strainer, and two ends are wrapped on take-up pulley and feed wheel respectively, and the middle part of glass fibre strainer is through between detecting device and radioactive source, and glass fibre strainer two sides is compressed by hold-down mechanism.
As a kind of preferred version, described binary channels Atmospheric particulates detection module includes flow sensor, temperature sensor, pressure transducer, humidity sensor and mass flow sensor for testing the gathered various parameter of sample gas further.
The present invention compared with prior art has obvious advantage and beneficial effect, binary channels particle automated watch-keeping facility in the present invention adds particle retention device at air intake opening place, by regulating the mesh size of this particle retention device air intake and the distance between baffle plate and air intake thereof, realize the stop of baffle plate to different numerical particle, thus, by required particle collection on sampling membrane, its one-piece construction is simple, uses flexibly; And the design of its sticky baffle effectively prevent larger particles and collides the phenomenon rebounded on baffle plate, to be stopped by bulky grain better, improves sampling efficiency and quality.
The Atmospheric particulates that this binary channels particle automated watch-keeping facility can complete field unattended monitor task automatically, measure while can realizing PM10 and PM2.5 particle concentration, realize monitoring continuously, online, in real time, automatically, have that structure is simple, the cycle of operation long, easy to maintenance, Monitoring Data quick and precisely, the remarkable advantage of real-time Transmission and control can be carried out with console for centralized control, have higher economic benefit and social benefit.
This monitoring device can pass through the various parameter of sample gas that flow sensor, temperature sensor, pressure transducer, humidity sensor and mass flow sensor gather, so that the analysis of subsequent experimental and science judgment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram in the preferred embodiment of the present invention.
Accompanying drawing identifier declaration:
10, binary channels particle adopts module
11, sampling air pump 12, air-flow ratio adjusting valve
13, binary channels particle sampler 14, controlling of sampling unit
15, air intake opening 16, gas outlet
17, baffle plate,
18, air intake 19, sampling pipe
191, pipeline adapter
20, binary channels Atmospheric particulates detection module.
Embodiment
Please refer to shown in Fig. 1, which show the concrete structure of the preferred embodiment of the present invention, a kind of binary channels particle automated watch-keeping facility, include binary channels particle and adopt module 10 and binary channels Atmospheric particulates detection module 20.
Wherein, this binary channels particle adopts module 10 to include sampling air pump 11, air-flow ratio adjusting valve 12 and binary channels particle sampler 13, gas enters binary channels particle sampler 13 by under the effect of air pump 11 of sampling through air-flow ratio adjusting valve 12, this binary channels particle sampler 13 includes a housing, two controlling of sampling unit 14 are provided with in housing, each controlling of sampling unit 14 includes gas channel, along these gas channel two ends respectively at housing offering air intake opening 15 and gas outlet 16, described air intake opening 15 place is provided with particle retention device 17, this particle retention device 17 includes the hollow cover body being covered in aforementioned air intake opening 15 and the baffle plate 17 being positioned at cover body, this cover body has the air intake 18 entered for ambient atmos, this air intake 18 is made up of some intensive through holes, this baffle plate and air intake keep spacing, and this baffle plate just blocks air intake completely to air intake position, and this baffle plate 17 lateral margin is communicated with the gap of air intake 15 and gas outlet 16 with being formed between cover body internal face, described gas outlet 16 is connected with sampling pipe 19, and this sampling pipe 19 lower end is connected with pipeline adapter 191,
This baffle plate upper surface attachment goo, filter-paper-tape and two sample gas paths are perpendicular, and the middle part of filter-paper-tape is through between two detecting devices and two radioactive sources, and therefore, the upper surface of its viscosity avoids the rebound phenomena after particle shock, and its blocking effect is better.Baffle plate is provided with the arrangement for adjusting height for controllable register height.
This arrangement for adjusting height bottom is connected to the center of baffle plate, and the upper end of arrangement for adjusting height is stretched out from cover body air intake center.
This particle retention device 17 is detachable to be installed on aforementioned housing, and described air-flow ratio adjusting valve 12 is removably installed in particle retention device 17.
This binary channels Atmospheric particulates detection module 10 includes flow sensor, temperature sensor, pressure transducer, humidity sensor and mass flow sensor for testing the gathered various parameter of sample gas further.
This binary channels Atmospheric particulates detection module 10 is made up of two sense channels, a filter-paper-tape and filter-paper-tape supporting construction, detection platform, each sense channel comprises a sample gas path, a detecting device and a radioactive source, the sample gas path of two sense channels adopts the pipeline adapter of module block sampling pipe lower end to be connected respectively with binary channels particle
This radioactive source is 14c source, detecting device is the direct proportion counter of Geiger tube counter or equivalent effect or matching used scintillator and photomultiplier.
This filter-paper-tape is glass fibre strainer, and two ends are wrapped on take-up pulley and feed wheel respectively, and the middle part of glass fibre strainer is through between detecting device and radioactive source, and glass fibre strainer two sides is compressed by hold-down mechanism.
This automated watch-keeping facility includes Temperature and Humidity Control module further, Temperature and Humidity Control module is by sampling pipe heat block, muff, sample air humidity degree modulator, described sampling pipe heat block and muff thereof cover and are arranged on the sampling pipe periphery that binary channels particle adopts module bottom, and the circuit of sample air humidity degree modulator is connected with the main frame of this pick-up unit.
Design focal point of the present invention is: the binary channels particle automated watch-keeping facility in the present invention adds particle retention device at air intake opening place, by regulating the mesh size of this particle retention device air intake and the distance between baffle plate and air intake thereof, realize the stop of baffle plate to different numerical particle, thus, by required particle collection on sampling membrane, its one-piece construction is simple, uses flexibly; And the design of its sticky baffle effectively prevent larger particles and collides the phenomenon rebounded on baffle plate, to be stopped by bulky grain better, improves sampling efficiency and quality.
The Atmospheric particulates that this binary channels particle automated watch-keeping facility can complete field unattended monitor task automatically, measure while can realizing PM10 and PM2.5 particle concentration, realize monitoring continuously, online, in real time, automatically, have that structure is simple, the cycle of operation long, easy to maintenance, Monitoring Data quick and precisely, the remarkable advantage of real-time Transmission and control can be carried out with console for centralized control, have higher economic benefit and social benefit.
This monitoring device can pass through the various parameter of sample gas that flow sensor, temperature sensor, pressure transducer, humidity sensor and mass flow sensor gather, so that the analysis of subsequent experimental and science judgment.
The above, it is only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions, thus every according to technical spirit of the present invention to any trickle amendment made for any of the above embodiments, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.

Claims (9)

1. a binary channels particle automated watch-keeping facility, is characterized in that: include binary channels particle and adopt module and binary channels Atmospheric particulates detection module, wherein:
Described binary channels particle adopts module to include sampling air pump, air-flow ratio adjusting valve and binary channels particle sampler, gas enters binary channels particle sampler by under the effect of air pump of sampling through air-flow ratio adjusting valve, this binary channels particle sampler includes a housing, two controlling of sampling unit are provided with in housing, each controlling of sampling unit includes gas channel, along these gas channel two ends respectively at housing offering air intake opening and gas outlet, described air intake opening place is provided with particle retention device, this particle retention device includes the hollow cover body being covered in aforementioned air intake opening and the baffle plate being positioned at cover body, this cover body has the air intake entered for ambient atmos, this air intake is made up of some intensive through holes, this baffle plate and air intake keep spacing, and this baffle plate just blocks air intake completely to air intake position, forms the gap being communicated with air intake and gas outlet between this baffle plate lateral margin with cover body internal face, described gas outlet is connected with sampling pipe, and this sampling pipe lower end is connected with pipeline adapter,
Described binary channels Atmospheric particulates detection module is made up of two sense channels, a filter-paper-tape and filter-paper-tape supporting construction, detection platform, each sense channel comprises a sample gas path, a detecting device and a radioactive source, the sample gas path of two sense channels adopts the pipeline adapter of module block sampling pipe lower end to be connected respectively with binary channels particle, filter-paper-tape and two sample gas paths perpendicular, the middle part of filter-paper-tape is through between two detecting devices and two radioactive sources.
2. a kind of binary channels particle automated watch-keeping facility according to claim 1, is characterized in that: described baffle plate upper surface attachment goo.
3. a kind of binary channels particle automated watch-keeping facility according to claim 1, is characterized in that: baffle plate is provided with the arrangement for adjusting height for controllable register height.
4. a kind of binary channels particle automated watch-keeping facility according to claim 1, it is characterized in that: described arrangement for adjusting height bottom is connected to the center of baffle plate, and the upper end of arrangement for adjusting height is stretched out from cover body air intake center.
5. a kind of binary channels particle automated watch-keeping facility according to claim 1, is characterized in that: described particle retention device is detachable to be installed on aforementioned housing, and described air-flow ratio adjusting valve is removably installed in particle retention device.
6. a kind of binary channels particle automated watch-keeping facility according to claim 1, it is characterized in that: include Temperature and Humidity Control module further, Temperature and Humidity Control module is by sampling pipe heat block, muff, sample air humidity degree modulator, described sampling pipe heat block and muff thereof cover and are arranged on the sampling pipe periphery that binary channels particle adopts module bottom, and the circuit of sample air humidity degree modulator is connected with the main frame of this pick-up unit.
7. a kind of binary channels particle automated watch-keeping facility according to claim 1, is characterized in that: described radioactive source is 14c source, detecting device is the direct proportion counter of Geiger tube counter or equivalent effect or matching used scintillator and photomultiplier.
8. a kind of binary channels particle automated watch-keeping facility according to claim 1, it is characterized in that: described filter-paper-tape is glass fibre strainer, two ends are wrapped on take-up pulley and feed wheel respectively, the middle part of glass fibre strainer is through between detecting device and radioactive source, and glass fibre strainer two sides is compressed by hold-down mechanism.
9. a kind of binary channels particle automated watch-keeping facility according to claim 1, is characterized in that: described binary channels Atmospheric particulates detection module includes flow sensor, temperature sensor, pressure transducer, humidity sensor and mass flow sensor for testing the gathered various parameter of sample gas further.
CN201310577377.9A 2013-11-18 2013-11-18 Two-channel automatic particulate monitoring device Pending CN104655533A (en)

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Cited By (18)

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CN105067600A (en) * 2015-09-08 2015-11-18 河北先河环保科技股份有限公司 Determination device for nitrate and ammonium salt in atmospheric particulates and application method thereof
CN106501141A (en) * 2016-10-27 2017-03-15 合肥福瞳光电科技有限公司 A kind of atmosphere particle concentration on-line monitoring method
WO2017045605A1 (en) * 2015-09-17 2017-03-23 北京代尔夫特电子科技有限公司 Sensor for detecting particulate matter in air and method for manufacturing same
CN106769250A (en) * 2016-12-28 2017-05-31 安徽庆宇光电科技有限公司 A kind of binary channels particle sampling module and the monitoring device containing the sampling module
CN106990016A (en) * 2017-04-21 2017-07-28 上海赛菲环境科技股份有限公司 A kind of dust sensor
CN107219155A (en) * 2017-05-31 2017-09-29 青岛众瑞智能仪器有限公司 A kind of device for automatically determining binary channels particulate matter quality concentration
CN108693142A (en) * 2018-06-11 2018-10-23 重庆大学 A kind of PM2.5 detection methods based on optical scattering principle
CN108956405A (en) * 2018-09-21 2018-12-07 云南武易高速公路建设指挥部 A kind of engineering construction atmospheric environment dust monitoring method
CN108982312A (en) * 2018-07-03 2018-12-11 海拉(厦门)电气有限公司 A kind of system of the interior outer PM2.5 concentration of dual-coil electromagnetic valve detection
CN109060621A (en) * 2018-09-21 2018-12-21 云南武易高速公路建设指挥部 A kind of monitoring device of powder-like waste for highway engineering
CN109060622A (en) * 2018-09-21 2018-12-21 云南武易高速公路建设指挥部 A kind of atmospheric environment lung particulate matter monitoring device for engineering construction
CN109238932A (en) * 2018-09-21 2019-01-18 中国科学院地质与地球物理研究所 A kind of highway engineering atmospheric environment lung particulate matter monitoring method
CN109765156A (en) * 2019-02-22 2019-05-17 北京英视睿达科技有限公司 Air total suspended particles monitoring device based on Internet of Things
CN109991139A (en) * 2019-04-28 2019-07-09 浙江新之源信息科技有限公司 A kind of particle concentration detector
CN111751173A (en) * 2019-03-27 2020-10-09 合肥福瞳光电科技有限公司 Single-sampling-rod double-channel atmospheric particulate monitor and monitoring method
CN113008745A (en) * 2021-02-25 2021-06-22 德航(天津)智能科技有限公司 Raise dust on-line monitoring device with binary channels beta ray
CN113702256A (en) * 2021-07-21 2021-11-26 北京师范大学 Fine particulate matter monitor of navigating
CN117589945A (en) * 2024-01-11 2024-02-23 武汉瑞气节能环保科技有限公司 Wisdom air compressor station is with air detection device

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CN105067600A (en) * 2015-09-08 2015-11-18 河北先河环保科技股份有限公司 Determination device for nitrate and ammonium salt in atmospheric particulates and application method thereof
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WO2017045605A1 (en) * 2015-09-17 2017-03-23 北京代尔夫特电子科技有限公司 Sensor for detecting particulate matter in air and method for manufacturing same
CN106501141A (en) * 2016-10-27 2017-03-15 合肥福瞳光电科技有限公司 A kind of atmosphere particle concentration on-line monitoring method
CN106769250A (en) * 2016-12-28 2017-05-31 安徽庆宇光电科技有限公司 A kind of binary channels particle sampling module and the monitoring device containing the sampling module
CN106990016A (en) * 2017-04-21 2017-07-28 上海赛菲环境科技股份有限公司 A kind of dust sensor
CN107219155A (en) * 2017-05-31 2017-09-29 青岛众瑞智能仪器有限公司 A kind of device for automatically determining binary channels particulate matter quality concentration
CN108693142A (en) * 2018-06-11 2018-10-23 重庆大学 A kind of PM2.5 detection methods based on optical scattering principle
CN108693142B (en) * 2018-06-11 2020-10-30 重庆大学 PM2.5 detection method based on optical scattering principle
CN108982312A (en) * 2018-07-03 2018-12-11 海拉(厦门)电气有限公司 A kind of system of the interior outer PM2.5 concentration of dual-coil electromagnetic valve detection
CN109060621A (en) * 2018-09-21 2018-12-21 云南武易高速公路建设指挥部 A kind of monitoring device of powder-like waste for highway engineering
CN109060622A (en) * 2018-09-21 2018-12-21 云南武易高速公路建设指挥部 A kind of atmospheric environment lung particulate matter monitoring device for engineering construction
CN109238932A (en) * 2018-09-21 2019-01-18 中国科学院地质与地球物理研究所 A kind of highway engineering atmospheric environment lung particulate matter monitoring method
CN108956405A (en) * 2018-09-21 2018-12-07 云南武易高速公路建设指挥部 A kind of engineering construction atmospheric environment dust monitoring method
CN109765156A (en) * 2019-02-22 2019-05-17 北京英视睿达科技有限公司 Air total suspended particles monitoring device based on Internet of Things
CN111751173A (en) * 2019-03-27 2020-10-09 合肥福瞳光电科技有限公司 Single-sampling-rod double-channel atmospheric particulate monitor and monitoring method
CN109991139A (en) * 2019-04-28 2019-07-09 浙江新之源信息科技有限公司 A kind of particle concentration detector
CN113008745A (en) * 2021-02-25 2021-06-22 德航(天津)智能科技有限公司 Raise dust on-line monitoring device with binary channels beta ray
CN113702256A (en) * 2021-07-21 2021-11-26 北京师范大学 Fine particulate matter monitor of navigating
CN117589945A (en) * 2024-01-11 2024-02-23 武汉瑞气节能环保科技有限公司 Wisdom air compressor station is with air detection device

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Application publication date: 20150527