CN104089930A - Laser backscattering type smoke-dust monitoring system - Google Patents
Laser backscattering type smoke-dust monitoring system Download PDFInfo
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- CN104089930A CN104089930A CN201410375171.2A CN201410375171A CN104089930A CN 104089930 A CN104089930 A CN 104089930A CN 201410375171 A CN201410375171 A CN 201410375171A CN 104089930 A CN104089930 A CN 104089930A
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- Prior art keywords
- laser
- flue dust
- monitoring system
- type smoke
- monitor
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 33
- 239000000428 dust Substances 0.000 title abstract description 19
- 238000012806 monitoring device Methods 0.000 claims abstract description 7
- 239000003500 flue dust Substances 0.000 claims description 37
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000000779 smoke Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000005693 optoelectronics Effects 0.000 claims description 3
- 230000011514 reflex Effects 0.000 claims description 3
- 238000005070 sampling Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000008187 granular material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000000790 scattering method Methods 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a laser backscattering type smoke-dust monitoring system. The laser backscattering type smoke-dust monitoring system comprises a sampling tube, a smoke-dust monitoring instrument and a speed-adjusting fan, wherein the sampling tube is communicated with a smoke-dust channel; the smoke-dust monitoring instrument is connected and communicated with the sampling tube; the speed-adjusting fan is communicated with the inner part of the smoke-dust monitoring instrument; the front end of the smoke-dust monitoring instrument is also provided with a pressure monitoring device which is connected with the speed-adjusting fan by a control system. The laser backscattering type smoke-dust monitoring system disclosed by the invention has the beneficial effects that since the fan is arranged, the balance of pressure in the sampling tube is guaranteed and smoke-dust in a chimney can reach the sampling tube, so that the accurate sampling is guaranteed, the influence of high temperature on a light-sensitive tube in the monitoring system is also avoided, and the accuracy of a monitored result is guaranteed.
Description
Technical field
The present invention relates to a kind of Smoke Monitoring System, particularly diffuse transmission type Smoke Monitoring System after a kind of laser.
Background technology
Environmental protection is more and more paid attention to all over the world, but commercial production also inevitably needs to discharge flue dust, and country has formulated standard to the discharge of flue dust, so enterprise need to carry out round-the-clock monitoring to the flue dust of discharge.At present the monitoring of flue dust is had to a lot of methods, as transmission beam method, by the light quantity of the laser diode transmitting of single wavelength with monitor dust concentration by the light quantity of monitoring after chimney, the light quantity of laser diode transmitting and being absorbed by flue dust and the light quantity that reduces relatively, thereby obtain the permeability of light, according to the permeability value of monitoring flue, calculate dust concentration.Also has in addition scattering method backward, laser is passed through after the soot dust granule in flue, because the effect of soot dust granule produces the scattered light of all directions, be called rear orientation light with incident direction angle this part scattered light within the scope of 90 ° to 270 °, by photoelectric commutator, rear orientation light light intensity signal is changed into simulating signal, according to scattered light and the proportional relation of particle concentration, thereby obtain dust concentration.But temperature is higher in chimney, when monitoring dust concentration, easily cause even mistake of photosensitive tube measuring error, cause dust concentration monitoring inaccurate; In addition, in the disclosed back scattering method of CN101566551, photosensitive tube is connected with digiboard by analog board, by analog circuit board, the ultra-weak electronic signal receiving is amplified, be converted to the voltage/current signals of the sufficient intensity that can be collected by digital display circuit, master control system is converted to digital signal simulating signal, to digital quantity add up, the computing such as filtering, matching, its method is comparatively complicated.
Summary of the invention
The present invention is intended to solve one of technical matters existing in prior art, for this reason, the present invention proposes diffuse transmission type Smoke Monitoring System after a kind of laser, comprise stopple coupon 3, flue dust monitor 5, described stopple coupon communicates with flue dust road, described flue dust monitor is connected and communicates with described stopple coupon, also comprise adjustable speed fan 8, described adjustable speed fan communicates with the inside of described flue dust monitor, described flue dust monitor front end is also provided with pressure monitoring device 9, and described pressure monitoring device is connected with described adjustable speed fan by control system.When pressure-detecting device detects pressure and is negative pressure, control system is controlled rotating speed and the direction of adjustable speed fan according to the size of negative pressure, and the pressure reading that makes pressure-detecting device place is zero; When pressure-detecting device detects pressure and is malleation, control system is controlled rotating speed and the direction of adjustable speed fan according to the size of malleation, and the pressure reading that makes pressure-detecting device place is zero.Set up blower fan, guarantee pressure equilibrium in stopple coupon, guarantee that the flue dust in chimney arrives stopple coupon, thus guarantee sampling accurately, also avoided the photosensitive tube in monitoring system to be subject to the impact of high temperature simultaneously, guarantee monitoring result accurately.
Further, also comprise air cleaner 7, described air cleaner communicates with described blower fan.
Further, between described stopple coupon and described monitor, be also provided with sealing gasket 4, on described monitor, be also provided with rain cover 6.
Further, described monitor is scattering flue dust monitor after laser, after described laser, scattering flue dust monitor comprises LASER Light Source 51, spectroscope 52, photosensitive tube 1, convex lens 56, photosensitive tube 2 57, comparer 58, the laser of described LASER Light Source transmitting reflexes to photosensitive tube one through spectroscope rear portion, another part is through being refracted to stopple coupon, scattered light planoconvex lens is pooled to photosensitive tube two, through opto-electronic conversion, the light signal that described photosensitive tube one, photosensitive tube two receive converts electric signal to, is pooled to comparer.By setting up spectroscope, the laser of transmitting is divided into original laser and the laser after flue dust scattering, by comparer, the two is compared and can draw dust concentration, method is simple and reliable.
Further, between described convex lens and stopple coupon, be also provided with diaphragm 54.
Further, before described convex lens, be provided with concave-convex lens 55, described concave-convex lens is separated into two mutual immobilising intervals by scattering flue dust monitor after described laser.
Further, described concave-convex lens is arranged on described diaphragm.At diaphragm place, scattering flue dust monitor after laser is divided into two, make photosensitive tube keep good environment, thereby guaranteed the accurate of monitoring result.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present invention;
Fig. 2 is the principle schematic of system of the present invention;
Wherein, 1, flue; 2, chimney wall; 3, stopple coupon; 4, sealing gasket; 5, flue dust monitor; 51, LASER Light Source; 52, spectroscope; 53, photosensitive tube one; 54, diaphragm; 55, concave-convex lens; 56, convex lens; 57, photosensitive tube two; 58, comparer; 6, rain cover; 7, air cleaner; 8, blower fan; 9, pressure-detecting device.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
As shown in Figure 1, diffuse transmission type Smoke Monitoring System after laser of the present invention, comprise stopple coupon 3, flue dust monitor 5, stopple coupon communicates with flue 1 through chimney wall 2, flue dust monitor 5 is connected and communicates with stopple coupon 3, between stopple coupon and monitor, be also provided with sealing gasket 4, guarantee to be also provided with on flue dust monitor rain cover 6.In flue dust monitor outside, be also provided with adjustable speed fan 8, and this adjustable speed fan can rotating, can produce malleation and negative pressure, adjustable speed fan communicates with the front end place of the inside of flue dust monitor, in the front and back of blower fan, be provided with air cleaner 7, the further along position of blower fan and flue dust monitor connecting place is also provided with pressure monitoring device 9, and pressure monitoring device is connected with adjustable speed fan by control system.When pressure-detecting device detects pressure and is negative pressure, control system is controlled rotating speed and the direction of adjustable speed fan according to the size of negative pressure, and the pressure reading that makes pressure-detecting device place is zero; When pressure-detecting device detects pressure and is malleation, control system is controlled rotating speed and the direction of adjustable speed fan according to the size of malleation, and the pressure reading that makes pressure-detecting device place is zero.Set up blower fan, guarantee pressure equilibrium in stopple coupon, guarantee that the flue dust in chimney arrives stopple coupon, thus guarantee sampling accurately, also avoided the photosensitive tube in monitoring system to be subject to the impact of high temperature simultaneously, guarantee monitoring result accurately.
In another embodiment, as shown in Figure 2, monitor is scattering flue dust monitor after laser, after laser, scattering flue dust monitor comprises LASER Light Source 51, spectroscope 52, photosensitive tube 1, convex lens 56, photosensitive tube 2 57, comparer 58, between convex lens and stopple coupon, be also provided with diaphragm 54, on diaphragm before convex lens, be also provided with concave-convex lens 55, concave-convex lens is separated into two mutual immobilising intervals by scattering flue dust monitor after laser.At diaphragm place, scattering flue dust monitor after laser is divided into two, make photosensitive tube keep good environment, thereby guaranteed the accurate of monitoring result.The laser of LASER Light Source 51 transmittings reflexes to photosensitive tube 1 through spectroscope 52 rear portions, another part is through being refracted to stopple coupon 3, scattered light planoconvex lens 56 is pooled to photosensitive tube 2 57, through opto-electronic conversion, the light signal that described photosensitive tube one, photosensitive tube two receive converts electric signal to, is pooled to comparer 58, by setting up spectroscope, comparer compares and can draw dust concentration original laser and the laser after flue dust scattering, and method is simple and reliable.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention in the situation that not departing from principle of the present invention and aim, modification, replacement and modification.
Claims (7)
1. diffuse transmission type Smoke Monitoring System after a laser, it is characterized in that, comprise stopple coupon (3), flue dust monitor (5), described stopple coupon communicates with flue dust road, described flue dust monitor is connected and communicates with described stopple coupon, also comprises adjustable speed fan (8), and described adjustable speed fan communicates with the inside of described flue dust monitor, described flue dust monitor front end is also provided with pressure monitoring device (9), and described pressure monitoring device is connected with described adjustable speed fan by control system.
2. diffuse transmission type Smoke Monitoring System after laser according to claim 1, is characterized in that, also comprises air cleaner (7), and described air cleaner communicates with described blower fan.
3. diffuse transmission type Smoke Monitoring System after laser according to claim 1, is characterized in that, is also provided with sealing gasket (4) between described stopple coupon and described monitor, is also provided with rain cover (6) on described monitor.
4. diffuse transmission type Smoke Monitoring System after laser according to claim 1, it is characterized in that, described monitor is scattering flue dust monitor after laser, after described laser, scattering flue dust monitor comprises LASER Light Source (51), spectroscope (52), photosensitive tube one (53), convex lens (56), photosensitive tube two (57), comparer (58), the laser of described LASER Light Source transmitting reflexes to photosensitive tube one through spectroscope rear portion, another part is through being refracted to stopple coupon, scattered light planoconvex lens is pooled to photosensitive tube two, through opto-electronic conversion, described photosensitive tube one, the light signal that photosensitive tube two receives converts electric signal to, be pooled to comparer.
5. diffuse transmission type Smoke Monitoring System after laser according to claim 3, is characterized in that, is also provided with diaphragm (54) between described convex lens and stopple coupon.
6. diffuse transmission type Smoke Monitoring System after laser according to claim 5, is characterized in that, before described convex lens, is provided with concave-convex lens (55), and described concave-convex lens is separated into two mutual immobilising intervals by scattering flue dust monitor after described laser.
7. diffuse transmission type Smoke Monitoring System after laser according to claim 6, is characterized in that, described concave-convex lens is arranged on described diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410375171.2A CN104089930B (en) | 2014-07-30 | 2014-07-30 | Formula Smoke Monitoring System is scattered after a kind of laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410375171.2A CN104089930B (en) | 2014-07-30 | 2014-07-30 | Formula Smoke Monitoring System is scattered after a kind of laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104089930A true CN104089930A (en) | 2014-10-08 |
| CN104089930B CN104089930B (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410375171.2A Expired - Fee Related CN104089930B (en) | 2014-07-30 | 2014-07-30 | Formula Smoke Monitoring System is scattered after a kind of laser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066311A (en) * | 2015-04-22 | 2016-11-02 | 株式会社堀场制作所 | Oil mist detector and mist of oil detection method |
| CN108760687A (en) * | 2018-04-08 | 2018-11-06 | 深圳市天环通科技有限公司 | Laser light scattering cooking fume instrument |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5852398A (en) * | 1998-03-13 | 1998-12-22 | Norman Leon Helman | Apparatus for indicating failure of an air filtration system in a diesel engine |
| EP1868173A2 (en) * | 2000-02-10 | 2007-12-19 | Siemens Schweiz AG | Improvements relating to smoke detectors particularly ducted smoke detectors |
| CN101290283A (en) * | 2008-06-04 | 2008-10-22 | 太原中绿环保技术有限公司 | Laser back scattering dust-measuring apparatus probe device |
| CN101566551A (en) * | 2008-04-25 | 2009-10-28 | 宇星科技发展(深圳)有限公司 | Backscattering smoke analyzer |
| WO2010132367A1 (en) * | 2009-05-12 | 2010-11-18 | Thermo Fisher Scientific Inc. | Particulate detection and calibration of sensors |
| CN102854109A (en) * | 2012-07-31 | 2013-01-02 | 安徽皖仪科技股份有限公司 | Novel intelligent sensor for measuring dust concentration by using laser backscattering method |
| KR101317982B1 (en) * | 2012-04-04 | 2013-10-14 | 에스피티씨주식회사 | Remote dust measurement system |
| CN103645127A (en) * | 2013-12-12 | 2014-03-19 | 天津勃名能源科技发展有限公司 | Back flushing type real-time online monitoring system for smoke pollutants |
| CN204116227U (en) * | 2014-07-30 | 2015-01-21 | 武汉菲舍控制技术有限公司 | Diffuse transmission type Smoke Monitoring System after a kind of laser |
-
2014
- 2014-07-30 CN CN201410375171.2A patent/CN104089930B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5852398A (en) * | 1998-03-13 | 1998-12-22 | Norman Leon Helman | Apparatus for indicating failure of an air filtration system in a diesel engine |
| EP1868173A2 (en) * | 2000-02-10 | 2007-12-19 | Siemens Schweiz AG | Improvements relating to smoke detectors particularly ducted smoke detectors |
| CN101566551A (en) * | 2008-04-25 | 2009-10-28 | 宇星科技发展(深圳)有限公司 | Backscattering smoke analyzer |
| CN101290283A (en) * | 2008-06-04 | 2008-10-22 | 太原中绿环保技术有限公司 | Laser back scattering dust-measuring apparatus probe device |
| WO2010132367A1 (en) * | 2009-05-12 | 2010-11-18 | Thermo Fisher Scientific Inc. | Particulate detection and calibration of sensors |
| KR101317982B1 (en) * | 2012-04-04 | 2013-10-14 | 에스피티씨주식회사 | Remote dust measurement system |
| CN102854109A (en) * | 2012-07-31 | 2013-01-02 | 安徽皖仪科技股份有限公司 | Novel intelligent sensor for measuring dust concentration by using laser backscattering method |
| CN103645127A (en) * | 2013-12-12 | 2014-03-19 | 天津勃名能源科技发展有限公司 | Back flushing type real-time online monitoring system for smoke pollutants |
| CN204116227U (en) * | 2014-07-30 | 2015-01-21 | 武汉菲舍控制技术有限公司 | Diffuse transmission type Smoke Monitoring System after a kind of laser |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066311A (en) * | 2015-04-22 | 2016-11-02 | 株式会社堀场制作所 | Oil mist detector and mist of oil detection method |
| CN108760687A (en) * | 2018-04-08 | 2018-11-06 | 深圳市天环通科技有限公司 | Laser light scattering cooking fume instrument |
| CN108760687B (en) * | 2018-04-08 | 2021-08-17 | 深圳市天得一环境科技有限公司 | Laser scattering oil fume monitor |
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| Publication number | Publication date |
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| CN104089930B (en) | 2017-11-03 |
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