CN201955289U - Laser scattering dust measuring instrument - Google Patents
Laser scattering dust measuring instrument Download PDFInfo
- Publication number
- CN201955289U CN201955289U CN201020662562XU CN201020662562U CN201955289U CN 201955289 U CN201955289 U CN 201955289U CN 201020662562X U CN201020662562X U CN 201020662562XU CN 201020662562 U CN201020662562 U CN 201020662562U CN 201955289 U CN201955289 U CN 201955289U
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- laser light
- light scattering
- smokemeter
- dust measuring
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Abstract
The utility model relates to a dust measuring instrument, in particular to an improved structure of a laser scattering dust measuring instrument. The laser scattering dust measuring instrument comprises a laser scattering dust measuring apparatus (1) and a synchronous calibration apparatus (2) and a sampling system (3) which are respectively connected with the laser scattering dust measuring apparatus (1); and an air exhaust system (4) is also connected to the synchronous calibration apparatus (2). The laser scattering dust measuring instrument has the advantages that: 1, the design is reasonable, the structure is simple, the noise is low, and the dust measuring instrument is totally practical; 2, the synchronous calibration for the measured dust can be carried out; and 3, the moisture in the dust before detection is removed first, so that the detection accuracy is improved.
Description
Technical field
The utility model relates to a kind of dust gauge, especially relates to a kind of structural improvement to the laser light scattering dust gauge.
Background technology
Soot dust granule substrate concentration in the flue gas of industrial pollution source emission is carried out the on-the-spot on-line continuous most optics opacity method that adopts of monitoring automatically both at home and abroad now, its principle is that a branch of light is injected flue, because the absorption and the scattering of particle, the light intensity decay, its light intensity weakened after light beam passed flue dust, when combustion medium is stablized, flue length is fixed, weakening of its light intensity is relevant with flue endoparticle substrate concentration, thereby can determine the soot dust granule substrate concentration by the variation of light intensity before and after the flue.It is convenient to measure the soot dust granule substrate concentration with the opaque method of optics, but certain restriction is arranged, when the concentration of soot dust granule thing is too high or too low, the sensitivity of measuring is not high, and is high to measuring the requirement of light path collimation, otherwise error is very big, it is time-consuming that complexity is installed, and is subjected to vibration effect very big.Along with promoting the use of of high-effective dust-removing device, the demand that detects the low concentration flue dust progressively increases, for detecting the efficiency of dust collection of fly-ash separator, the user that concentration detection apparatus is installed before and after the fly-ash separator is also progressively increasing, be high concentration like this before the dedusting, be low concentration after the dedusting, use optics opacity method to measure in some occasions and just be restricted.Therefore people have developed and have adopted the scattered light principle to detect the device of soot dust granule substrate concentration.The advantage of this class pick-up unit is that the length of testing result and light path is irrelevant, can not only be real-time, online, continuous measurement, and also easy for installation.Principle is that a branch of light is injected flue, light beam and soot dust granule thing interact and produce scattering, the power of scattered light is directly proportional with total scatter cross-section, when the soot dust granule substrate concentration raises, the total scatter cross-section of soot dust granule thing increases, scattered light strengthens, and can obtain the concentration of soot dust granule thing by the power of measuring scattered light, and experiment test: resolution can reach 0.02mg/m
3, minimum measurement range 0-2mg/m
3But existing scattered light particle concentration pick-up unit, the soot dust granule that enters measurement range on the one hand is not of uniform size, influences measuring accuracy, on the other hand, after adopting optical detection apparatus to detect, can not recheck, promptly can not demarcate synchronously this testing result to it; Have, the existing flue dust of measuring directly enters in the measurement mechanism, because flue dust has steam, to a certain degree also can influence measuring accuracy again.
The utility model content
The utility model mainly is to solve existing in prior technology to enter the soot dust granule of measurement range not of uniform size, influences the technical matters of measuring accuracy etc.; A kind of energy control detection grain size is provided, thereby has improved the laser light scattering dust gauge of measuring accuracy.
It is after solving existing in prior technology and adopting optical detection apparatus to detect, can not recheck it that the utility model also has a purpose, i.e. the technical matters that can not demarcate synchronously etc. this testing result; A kind of laser light scattering dust gauge that can demarcate synchronously the survey flue dust is provided.
It is to solve the existing flue dust of measuring of existing in prior technology directly to enter in the measurement mechanism that the utility model has a purpose again, because flue dust has steam, to a certain degree also can influence the technical matters of measuring accuracy etc.; Providing a kind of can remove the steam in the flue dust before detecting earlier, thereby improves the laser light scattering dust gauge of accuracy of detection.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals:
A kind of laser light scattering smokemeter is characterized in that, comprises laser light scattering dust measuring device and the synchronous caliberating device and the sampling system that link to each other with laser light scattering dust measuring device respectively, also is connected with extract system on the described synchronous caliberating device.
At above-mentioned laser light scattering smokemeter, described laser light scattering dust measuring device comprise measure casing and be arranged on measure laser beam emitting device, the scattered light receiving trap in the casing and be arranged on laser beam emitting device and the scattered light receiving trap between measuring chamber.
At above-mentioned laser light scattering smokemeter, described sampling system comprises the cutter that at least one sampling pipe that dewaters by heating links to each other with above-mentioned measuring chamber.
At above-mentioned laser light scattering smokemeter, described synchronous caliberating device comprises the caliberating device that links to each other with above-mentioned extract system.
At above-mentioned laser light scattering smokemeter, described extract system comprises aspiration pump, pressurestat and throttle orifice, and above-mentioned caliberating device links to each other with described aspiration pump by throttle orifice and pressurestat successively.
At above-mentioned laser light scattering smokemeter, described synchronous caliberating device adopts filter membrane box or β ray marking apparatus or vibration balance or standard scatter plate.
At above-mentioned laser light scattering smokemeter, it is the heating sampling pipe of 1mm-30mm that described sampling pipe adopts diameter, and described cutter adopts PM1 or PM2.5 or PM5 or PM10.
At above-mentioned laser light scattering smokemeter, it also comprises an air purifier that connects with above-mentioned laser light scattering dust measuring device, and described air purifier and above-mentioned measuring machine shell interface are provided with clean air curtain.
Therefore, the utlity model has following advantage: 1. reasonable in design, simple in structure, the less and complete practicality of noise; 2. can demarcate synchronously the survey flue dust; 3. the steam in the flue dust before detecting can be removed earlier, thereby be improved accuracy of detection.
Description of drawings
Fig. 1 is a kind of structural principle synoptic diagram of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.Among the figure, laser light scattering dust measuring device 1, laser beam emitting device 101, measuring chamber 102, scattered light receiving trap 103, measurement casing 104, measuring chamber 103, synchronous caliberating device 2, caliberating device 201, sampling system 3, sampling pipe 301, cutter 302, extract system 4, aspiration pump 401, pressurestat 402, throttle orifice 403, air purifier 5, clean air curtain 6.
Embodiment:
A kind of laser light scattering smokemeter, comprise laser light scattering dust measuring device 1 and the synchronous caliberating device 2 and the sampling system 3 that link to each other with laser light scattering dust measuring device 1 respectively, also be connected with extract system 4 on the described synchronous caliberating device 2, comprise measure casing 104 and be arranged on measure laser beam emitting device 101, the scattered light receiving trap 103 in the casing 104 and be arranged on laser beam emitting device 101 and scattered light receiving trap 103 between measuring chamber 102.
In the present embodiment, it is the heating sampling pipe of 1mm-30mm that sampling pipe adopts diameter, in the present embodiment, also comprises an air purifier 5 that connects with above-mentioned laser light scattering dust measuring device 1, and air purifier 5 is provided with clean air curtain 6 with measurement casing 104 interfaces.
In the present embodiment, partly added cutter at the sampling pipe that inserts flue, as shown in the figure, cutter 302 adopts the combination in twos of PM1 or PM2.5 or PM5 or PM10, certainly, also can use single or three even four, in addition, this device can be that the flue dust of 5-80L/Min carries out real-time sampling at the sample objects flow, in practical operation, sampling pipe adopts the sampling pipe of heating, can earlier detected flue dust be heated, remove moisture in the flue dust, detect entering into diffuse optical sensor 106 sensing chamber, in this device, should be noted that, the device of demarcating can adopt the filter membrane box synchronously, β ray marking apparatus, a kind of in vibration balance and the standard scatter plate all can.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used laser light scattering dust measuring device 1, laser beam emitting device 101, measuring chamber 102, scattered light receiving trap 103, measured terms such as casing 104, measuring chamber 103, synchronous caliberating device 2, caliberating device 201, sampling system 3, sampling pipe 301, cutter 302, extract system 4, aspiration pump 401, pressurestat 402, throttle orifice 403, air purifier 5, clean air curtain 6 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (8)
1. laser light scattering smokemeter, it is characterized in that, comprise laser light scattering dust measuring device (1) and synchronous caliberating device (2) that links to each other with laser light scattering dust measuring device (1) respectively and sampling system (3), also be connected with extract system (4) on the described synchronous caliberating device (2).
2. laser light scattering smokemeter according to claim 1, it is characterized in that, described laser light scattering dust measuring device (1) comprise measure casing (104) and be arranged on measure laser beam emitting device (101), the scattered light receiving trap (103) in the casing (104) and be arranged on laser beam emitting device (101) and scattered light receiving trap (103) between measuring chamber (102).
3. laser light scattering smokemeter according to claim 1 is characterized in that, described sampling system (3) comprises the cutter (302) that at least one sampling pipe that dewaters by heating (301) links to each other with above-mentioned measuring chamber (102).
4. laser light scattering smokemeter according to claim 2 is characterized in that, described synchronous caliberating device (2) comprises the caliberating device (201) that links to each other with above-mentioned extract system (4).
5. laser light scattering smokemeter according to claim 2, it is characterized in that, described extract system (4) comprises aspiration pump (401), pressurestat (402) and throttle orifice (403), and above-mentioned caliberating device (201) links to each other with described aspiration pump (401) by throttle orifice (403) and pressurestat (402) successively.
6. laser light scattering smokemeter according to claim 2 is characterized in that, described synchronous caliberating device (2) adopts filter membrane box or β ray marking apparatus or vibration balance or standard scatter plate.
7. laser light scattering smokemeter according to claim 2 is characterized in that, it is the heating sampling pipe of 1mm-30mm that described sampling pipe adopts diameter, and described cutter (302) adopts PM1 or PM2.5 or PM5 or PM10.
8. laser light scattering smokemeter according to claim 2, it is characterized in that, it also comprises an air purifier (5) that connects with above-mentioned laser light scattering dust measuring device (1), and described air purifier (5) is provided with clean air curtain (6) with above-mentioned measurement casing (104) interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020662562XU CN201955289U (en) | 2010-12-16 | 2010-12-16 | Laser scattering dust measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020662562XU CN201955289U (en) | 2010-12-16 | 2010-12-16 | Laser scattering dust measuring instrument |
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| Publication Number | Publication Date |
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| CN201955289U true CN201955289U (en) | 2011-08-31 |
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| CN201020662562XU Expired - Lifetime CN201955289U (en) | 2010-12-16 | 2010-12-16 | Laser scattering dust measuring instrument |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507509A (en) * | 2011-10-24 | 2012-06-20 | 中南民族大学 | Real-time online detection analyzer for toxic particle in flue gas |
| 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 |
| CN103196803A (en) * | 2013-02-25 | 2013-07-10 | 陈亚锋 | Signal processing method for solid particle concentration analysis apparatus |
| CN104122174A (en) * | 2013-04-26 | 2014-10-29 | 无锡飘睿健康科技有限公司 | Dust particle analysis module of air quality control device |
| CN105334147A (en) * | 2015-12-04 | 2016-02-17 | 深圳睿境环保科技有限公司 | Online particle monitoring system and method based on beta ray method and light scattering method |
| CN105738579A (en) * | 2016-05-03 | 2016-07-06 | 北京英视睿达科技有限公司 | Treatment method for improving atmospheric particulate measurement precision |
| WO2018006514A1 (en) * | 2016-07-06 | 2018-01-11 | 东莞市利发爱尔空气净化系统有限公司 | Pm2.5 measurement device |
| CN107607449A (en) * | 2017-08-21 | 2018-01-19 | 黑龙江科技大学 | A kind of device and method for detecting particulate matter quality concentration |
| CN107917861A (en) * | 2017-11-27 | 2018-04-17 | 清远市新中科检测有限公司 | The detection method of pellet PM10 in room air |
| 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 |
| CN113418840A (en) * | 2021-06-22 | 2021-09-21 | 西石(厦门)科技股份有限公司 | Gas detection device and vehicle-mounted tail gas detection system |
-
2010
- 2010-12-16 CN CN201020662562XU patent/CN201955289U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507509A (en) * | 2011-10-24 | 2012-06-20 | 中南民族大学 | Real-time online detection analyzer for toxic particle in flue gas |
| 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 |
| CN103196803A (en) * | 2013-02-25 | 2013-07-10 | 陈亚锋 | Signal processing method for solid particle concentration analysis apparatus |
| CN103196803B (en) * | 2013-02-25 | 2015-06-24 | 杭州创迅知识产权咨询有限公司 | Signal processing method for solid particle concentration analysis apparatus |
| CN104122174A (en) * | 2013-04-26 | 2014-10-29 | 无锡飘睿健康科技有限公司 | Dust particle analysis module of air quality control device |
| CN105334147B (en) * | 2015-12-04 | 2018-05-08 | 深圳睿境环保科技有限公司 | Particulate matter on-line monitoring system and method based on β ray methods and light scattering method |
| CN105334147A (en) * | 2015-12-04 | 2016-02-17 | 深圳睿境环保科技有限公司 | Online particle monitoring system and method based on beta ray method and light scattering method |
| CN105738579A (en) * | 2016-05-03 | 2016-07-06 | 北京英视睿达科技有限公司 | Treatment method for improving atmospheric particulate measurement precision |
| WO2018006514A1 (en) * | 2016-07-06 | 2018-01-11 | 东莞市利发爱尔空气净化系统有限公司 | Pm2.5 measurement device |
| CN107607449A (en) * | 2017-08-21 | 2018-01-19 | 黑龙江科技大学 | A kind of device and method for detecting particulate matter quality concentration |
| CN107917861A (en) * | 2017-11-27 | 2018-04-17 | 清远市新中科检测有限公司 | The detection method of pellet PM10 in room air |
| 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 |
| CN113418840A (en) * | 2021-06-22 | 2021-09-21 | 西石(厦门)科技股份有限公司 | Gas detection device and vehicle-mounted tail gas detection system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |