CN103868834A - Indoor-outdoor PM2.5 environment monitoring collector - Google Patents
Indoor-outdoor PM2.5 environment monitoring collector Download PDFInfo
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- CN103868834A CN103868834A CN201410096242.5A CN201410096242A CN103868834A CN 103868834 A CN103868834 A CN 103868834A CN 201410096242 A CN201410096242 A CN 201410096242A CN 103868834 A CN103868834 A CN 103868834A
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Abstract
The invention provides an indoor-outdoor PM2.5 environment monitoring collector. The indoor-outdoor PM2.5 environment monitoring collector comprises a detection channel, wherein an air inlet is formed in one end of the detection channel, and an air outlet is formed in the other end of the detection channel; a light scattering dust sensor and a beta-ray dust detection device are sequentially arranged from the air inlet to the air outlet in the detection channel. The indoor-outdoor PM2.5 environment monitoring collector is reasonable in design; the PM2.5 in air is detected by using two high-sensitivity sensor technologies, namely the light scattering dust sensor and the beta-ray dust detection device, and the collector is high in measurement accuracy and convenient to install and operate, can be produced for use on a large scale in the field of civil use or commercial use, and can assist a user in intuitively knowing the quality of the living environment; with the adoption of the small-sized and low-power-consumption design, the safety is guaranteed, and the indoor-outdoor PM2.5 environment monitoring collector has the advantages of low cost, small size, light weight, portability, mobility and the like.
Description
Technical field
The present invention relates to PM2.5 monitoring technical field, relate in particular to a kind of PM2.5 indoor and outdoor surroundings monitoring collector.
Background technology
PM2.5 refers to that diameter in atmosphere is less than or equal to the particle of 2.5 μ m, also claims to enter lung particle.Although PM2.5 is the little component of content in earth atmosphere composition, it has important impact to air quality and visibility etc.PM2.5 particle diameter is little; contain that a large amount of poisonous and harmful substances and atmospheric residence time are long, fed distance is far away; therefore very large on the impact of health and atmosphere quality; in order to make accurately perception local air quality of the common people; to reduce it polluting the outdoor activity of weather or reminding it to take corresponding safeguard measure, PM2.5 is carried out to convenient, fast, real-time detection and just become the work being significant.
At present, the PM2.5 determination method that environmental administration of various countries extensively adopts mainly divides two classes: Manual analysis and automatic analysis, Manual analysis mainly adopts gravimetric method, and automatic analysis mainly comprises β rays method, micro-oscillating balance method, China mainly adopts gravimetric method to the mensuration of PM2.5 at present, its principle is mainly that extracting air passes through sampling thief, PM2.5 in surrounding air is trapped within on known quality filter membrane, calculates the concentration of PM2.5 according to the of poor quality and sampling volume of filter membrane before and after sampling.
Can see, the checkout equipment of existing PM2.5 generally has the shortcomings such as volume is large, power consumption is large, price is high, not portable.
Summary of the invention
The technical problem to be solved in the present invention is: the above-mentioned technical matters existing in order to solve the checkout equipment of PM2.5 in prior art, the invention provides a kind of PM2.5 indoor and outdoor surroundings monitoring collector and solve the problems referred to above.
The technical solution adopted for the present invention to solve the technical problems is: a kind of PM2.5 indoor and outdoor surroundings monitoring collector, comprise sense channel, one end of described sense channel is air intake opening, one end is gas outlet in addition, in described sense channel, be disposed with light scattering dust sensor and β ray dust investigating from described air intake opening to gas outlet, described β ray dust investigating comprises particle sense channel; One end of described particle sense channel is for air inlet and be provided with PM2.5 cutter, the other end is provided with concentration part, in described particle sense channel, be also provided with the particle filtration unit for filtering dirt, described particle filtration unit comprises that inside is provided with the particulate filter of filter membrane and for placing particulate filter capable of opening and closing filter membrane placement housing, the filter membrane filter footpath in described particulate filter is 0.1 μ m ~ 22 μ m.
The invention has the beneficial effects as follows, this PM2.5 indoor and outdoor surroundings monitoring collector is reasonable in design, adopt light scattering dust sensor and two kinds of high sensitive sensor technology of β ray dust investigating to detect the PM2.5 of air simultaneously, measuring accuracy is high, and fitting operation is convenient, can be at civilian or commercial kitchen area use of large-scale production, can help user that the environmental quality of oneself life is had comparatively and got information about; Product adopts miniaturization low power dissipation design, and safety is more secure, possesses the advantages such as low cost, miniaturization and, Portable movable.
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Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the frame diagram of the optimum embodiment of PM2.5 indoor and outdoor surroundings monitoring collector of the present invention.
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Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present invention is only described in a schematic way, and therefore it only shows the formation relevant with the present invention.
As shown in Figure 1, the invention provides a kind of PM2.5 indoor and outdoor surroundings monitoring collector, comprise sense channel, one end of sense channel is air intake opening, one end is gas outlet in addition, in sense channel, be disposed with light scattering dust sensor and β ray dust investigating from air intake opening to gas outlet, β ray dust investigating comprises particle sense channel, one end of particle sense channel is for air inlet and be provided with PM2.5 cutter, the other end is provided with concentration part, in particle sense channel, be also provided with the particle filtration unit for filtering dirt, particle filtration unit comprises that inside is provided with the particulate filter of filter membrane and places housing for placing the also capable of opening and closing filter membrane of particulate filter, filter membrane filter footpath in particulate filter is 0.1 μ m ~ 22 μ m, utilize light scattering method and two kinds of measuring principles of β line absorption method, can carry out the concentration determination of high precision dust granules, first in determination of light scattering region, in the time that dust granules passes, by analyzing light intensity at random, thereby mensuration dust concentration, optical source wavelength is 880nm, can measure at any time and synchronously carry out, calculating mean value continuously.When floating dust particle is by behind determination of light scattering portion region, carrying out data acquisition through β ray dust investigating, the β line strength before and after comparing calculation gathers, thus then calculate PM2.5 value by its damping capacity.
Taking above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this invention technological thought, carry out various change and amendment completely.The technical scope of this invention is not limited to the content on instructions, must determine its technical scope according to claim scope.
Claims (1)
1. a PM2.5 indoor and outdoor surroundings monitoring collector, it is characterized in that: comprise sense channel, one end of described sense channel is air intake opening, one end is gas outlet in addition, in described sense channel, be disposed with light scattering dust sensor and β ray dust investigating from described air intake opening to gas outlet, described β ray dust investigating comprises particle sense channel; One end of described particle sense channel is for air inlet and be provided with PM2.5 cutter, the other end is provided with concentration part, in described particle sense channel, be also provided with the particle filtration unit for filtering dirt, described particle filtration unit comprises that inside is provided with the particulate filter of filter membrane and for placing particulate filter capable of opening and closing filter membrane placement housing, the filter membrane filter footpath in described particulate filter is 0.1 μ m ~ 22 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410096242.5A CN103868834A (en) | 2014-03-14 | 2014-03-14 | Indoor-outdoor PM2.5 environment monitoring collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410096242.5A CN103868834A (en) | 2014-03-14 | 2014-03-14 | Indoor-outdoor PM2.5 environment monitoring collector |
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| Publication Number | Publication Date |
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| CN103868834A true CN103868834A (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410096242.5A Pending CN103868834A (en) | 2014-03-14 | 2014-03-14 | Indoor-outdoor PM2.5 environment monitoring collector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918635A (en) * | 2015-12-28 | 2017-07-04 | 青岛道空优科技有限公司 | A kind of air detecting device of closed in space |
| CN108152178A (en) * | 2016-12-05 | 2018-06-12 | 天津普瑞爱尔科技有限公司 | β rays sensor for particulate matter concentration detection and its detection method |
| CN108645767A (en) * | 2018-05-02 | 2018-10-12 | 华中科技大学 | A method of coupling light scattering and beta-ray measurement coal-fired flue-gas particulate matter quality concentration |
| CN110954453A (en) * | 2018-09-27 | 2020-04-03 | 财团法人工业技术研究院 | Suspended particle sensing device |
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| CN102636621A (en) * | 2012-03-31 | 2012-08-15 | 北京盈胜泰科技术有限公司 | Portable PM2.5 (Particulate Matter 2.5) monitoring equipment and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918635A (en) * | 2015-12-28 | 2017-07-04 | 青岛道空优科技有限公司 | A kind of air detecting device of closed in space |
| CN108152178A (en) * | 2016-12-05 | 2018-06-12 | 天津普瑞爱尔科技有限公司 | β rays sensor for particulate matter concentration detection and its detection method |
| CN108645767A (en) * | 2018-05-02 | 2018-10-12 | 华中科技大学 | A method of coupling light scattering and beta-ray measurement coal-fired flue-gas particulate matter quality concentration |
| CN110954453A (en) * | 2018-09-27 | 2020-04-03 | 财团法人工业技术研究院 | Suspended particle sensing device |
| CN110954453B (en) * | 2018-09-27 | 2022-07-12 | 财团法人工业技术研究院 | Suspended particle sensing device |
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Application publication date: 20140618 |