CN105547948A - Automatic calibration device for dust concentration on-line monitoring - Google Patents
Automatic calibration device for dust concentration on-line monitoring Download PDFInfo
- Publication number
- CN105547948A CN105547948A CN201610058327.3A CN201610058327A CN105547948A CN 105547948 A CN105547948 A CN 105547948A CN 201610058327 A CN201610058327 A CN 201610058327A CN 105547948 A CN105547948 A CN 105547948A
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- China
- Prior art keywords
- calibration
- dust concentration
- line monitoring
- calibrated mount
- alignment unit
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- 239000000428 dust Substances 0.000 title claims abstract description 21
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000779 smoke Substances 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
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses an automatic calibration device for dust concentration on-line monitoring, comprising a calibration frame and a calibration unit arranged on the calibration frame in a manner of being capable of transversely moving, wherein the calibration frame is provided with a light emitting port and a light receiving port, the transversely moving positions of the calibration unit comprise a calibration position and a measurement calibration; when the calibration unit is located in the measurement position, a light ray emits to an area to be measured through the light emitting port to generate scattering, and scattered light returns back through the light receiving port for measuring; when the calibration unit is located in the calibration position, the light ray emits onto the calibration unit to generate refraction and returns back for calibration; the device is simple and compact in structure, the calibration unit is mounted on the calibration frame and can realize transverse movement for switching between the calibration position and the measurement position to realize automatic calibration, the manual operations are reduced, and the accuracy and the stability of calibration are ensured; the device can work independently, the factory debugging of the calibration unit is facilitated, and the device has the characteristic of being convenient in on-site maintenance.
Description
Technical field
The present invention relates to monitoring smoke dust field, particularly a kind of dust concentration on-line monitoring self-checking device.
Background technology
Along with the fast development of national economy, in industrial many fields, as coal-burning power plant, cement etc. all can discharge flue dust in process of production in air, therefore, the real-time measurement of dust concentration is the important step of emission source monitoring, according to associated specifications in national environmental standard HJ/T76-2007, for ensureing the accuracy of instrument, appliance requires possesses calibration function.
In prior art, truing tool is as an accessory of dust concentration monitor, insert truing tool when needs are calibrated, take out during duty, be that calibration Tool integration is arranged on dust concentration monitor, manually truing tool rotated 180 ° to complete the calibration at zero point and span; But both structures are all comparatively complicated, need regular manual calibration, are not easy to field maintemance.
Therefore, need to improve existing dust concentration on-line monitoring self-checking device, make it simple and compact for structure, the Stability and veracity calibrated can be ensured, facilitate the maintenance of single unit system simultaneously.
Summary of the invention
In view of this, the invention provides a kind of dust concentration on-line monitoring self-checking device, simple and compact for structure, the Stability and veracity calibrated can be ensured, facilitate the maintenance of single unit system simultaneously.
Dust concentration on-line monitoring self-checking device of the present invention, comprise calibrated mount and be arranged on the alignment unit on calibrated mount in transversely movable mode, calibrated mount is provided with and launches unthreaded hole and receive unthreaded hole, the lateral displacement position of alignment unit comprises calibrating position and measuring position;
When alignment unit is positioned at measuring position, light incides region to be measured generation scattering through launching unthreaded hole, and scattered light returns through reception unthreaded hole and measures;
When alignment unit is positioned at calibrating position, returns after light to alignment unit reflects and calibrate.
Further, also comprise the drive system for automatically driving alignment unit to locate movement, drive system comprises:
Driver element, is arranged on described calibrated mount for driving alignment unit transverse shifting;
Alignment sensor I, alignment sensor I is arranged on described calibrated mount side and moves to calibrating position for testing calibration unit and output signal;
Alignment sensor II, alignment sensor II is arranged on described calibrated mount opposite side and moves to measuring position for testing calibration unit and output signal;
Controller, controller input end is connected for receiving output signal with the output terminal of alignment sensor I and alignment sensor II, and controller exports control command to driver element.
Further, alignment unit comprises calibration seat and is arranged on the diffuse reflection component on calibration seat, and diffuse reflection component is Dove prism structure.
Further, driver element comprises drive motor, drives the leading screw rotated and the slide block be arranged on leading screw by drive motor, and slide block is fixedly connected with bottom calibration seat.
Further, driver element is fixedly connected with calibrated mount by an erecting frame.
Further, calibrated mount is the U-shaped structure be made up of two side and base plate, the sidewall of calibrated mount is provided with the guide rail to calibration seat transverse shifting guiding.
Further, launch the elliptical aperture that unthreaded hole is intermediate rectangular two ends semicircular structure, reception unthreaded hole is borehole structure.
Beneficial effect of the present invention: dust concentration on-line monitoring self-checking device of the present invention, simple and compact for structure, alignment unit to be arranged on calibrated mount and can to realize automatic transverse-moving and switches between calibrating position and measuring position, realize automatic calibration, reduce manual operation, ensure the Stability and veracity of calibration; And the present invention can work independently, facilitate the debugging of dispatching from the factory of alignment unit, there is field maintemance feature easily simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the base arrangement schematic diagram of the calibrated mount in the present invention;
Fig. 3 is working state schematic representation of the present invention.
Embodiment
Fig. 1 is structural representation of the present invention, Fig. 2 is the base arrangement schematic diagram of the calibrated mount in the present invention, Fig. 3 is working state schematic representation of the present invention, in Fig. 3, represented by dotted arrows alignment unit is positioned at measuring position, solid line represents alignment unit and is positioned at calibrating position, as shown in the figure: the dust concentration on-line monitoring self-checking device of the present embodiment, comprise calibrated mount 1 and be arranged on the alignment unit on calibrated mount 1 in transversely movable mode, calibrated mount 1 is provided with and launches unthreaded hole 2 and receive unthreaded hole 3, the lateral displacement position of alignment unit comprises calibrating position 4 and measuring position 5; Launch unthreaded hole 2 to be made up of two circles at a distance of 5mm, diameter being Φ 15mm, receiving unthreaded hole 3 size is Φ 35mm, launches unthreaded hole and the distance received between unthreaded hole is 42.5mm; This self-checking device uses in conjunction with the monitoring means of dust concentration monitor, monitoring means at least comprises LASER Light Source 6 and photelectric receiver 7, calibrating position 4 and measuring position 5 are determined according to the position of LASER Light Source 6, calibrating position 4 is positioned at the trigger position of alignment sensor I 12, and measuring position 5 is positioned at the trigger position of alignment sensor II 13.The total kilometres of alignment unit are 25mm, and calibrating position 4 is just to LASER Light Source 6 position, and measuring position 5 does not hinder LASER Light Source 6 Emission Lasers to be as the criterion by launching unthreaded hole 2 with alignment unit present position; In addition, monitoring means also comprises window lens 8 and convex lens 9, is prior art, does not repeat them here;
When alignment unit is positioned at measuring position 5, light incides region to be measured generation scattering through launching unthreaded hole 2, and scattered light returns through reception unthreaded hole 3 and measures; Namely, now LASER Light Source 6 launches laser, transmitting unthreaded hole 2 on laser light passes through windows eyeglass 8 and calibrated mount 1, incide region to be measured, when light is irradiated to particle 10, scattering phenomenon can occur, scattered beam is reentered by reception unthreaded hole 3 and is mapped on convex lens 9, convergence of rays on photelectric receiver 7, is completed the collection of measured signal by convex lens 9;
When alignment unit is positioned at calibrating position 4, returns after light to alignment unit reflects and calibrate; That is, after the laser light passes through windows eyeglass 8 that now LASER Light Source 6 is launched, light can incide on alignment unit, incides on convex lens 9 after the refraction of alignment unit, and convergence of rays on photelectric receiver 7, is completed the collection of calibrating signal by convex lens 9.
In the present embodiment, also comprise the drive system for automatically driving alignment unit to locate movement, drive system comprises:
Driver element 11, is arranged on described calibrated mount 1 for driving alignment unit transverse shifting;
Alignment sensor I 12, alignment sensor I is arranged on described calibrated mount 1 side and moves to calibrating position 4 for testing calibration unit and output signal; Alignment sensor I is arranged on calibrated mount by a sensor holder 14, and sensor holder can be finely tuned according to the position of LASER Light Source, to reach the object of accurate alignment;
Alignment sensor II 13, alignment sensor II is arranged on described calibrated mount 1 opposite side and moves to measuring position 5 for testing calibration unit and output signal;
Controller, controller input end is connected for receiving output signal with the output terminal of alignment sensor I and alignment sensor II, and controller exports control command to driver element;
Namely, coordinated with controller by alignment sensor I and alignment sensor II, alignment unit is accurately positioned between measuring position 5 and calibrating position 4 and carries out mobile handoff, when needs are calibrated, moved by control order driver element task driven alignment unit, monitor when alignment unit moves to predetermined calibrating position 4 when alignment sensor I and output signal, controller receive alignment sensor I output signal also command driven unit and quits work, after calibration, moved to measuring position 5 by control order driver element task driven alignment unit, output signal when alignment sensor II monitors when alignment unit moves to predetermined measuring position 5, controller receive alignment sensor II output signal also command driven unit and quits work, alignment sensor I and alignment sensor II are mechanical detection sensor, model is K5-1616SA-02, and two alignment sensors coordinate with controller, and controls alignment unit to be accurately positioned on two positions by algorithm, can be realized by prior art, not repeat them here.
In addition, in controller, also timing unit is set, timing unit is used for timing and calculates interval of calibration, by artificially arranging interval of calibration, timing unit output terminal is connected with controller input end, when to the alignment time, timing unit is to controller input signal, controller judges to calibrate, thus command driven cell operation is calibrated, and interval of calibration definable scope is 1-100h.
In the present embodiment, the diffuse reflection component 16 that alignment unit comprises calibration seat 15 and is arranged on calibration seat 15, diffuse reflection component 16 is Dove prism structure; The diffuse reflection component 16 of Dove prism structure can increase the diffuse reflecting power on surface, makes incident light can be reflected back on photelectric receiver 7 with some strength, and calibration seat inner hollow, it is interior and fastening from bottom by screw 20 that diffuse reflection component falls within calibration seat.
In the present embodiment, driver element 11 comprises drive motor 11-1, is driven by drive motor 11-1 the leading screw 11-2 rotated and the slide block 11-3 be arranged on leading screw 11-2, slide block 11-3 to be fixedly connected with bottom calibration seat 15; Leading screw 11-2 and slide block 11-3 forms screw-nut structure, and slide block 11-3 can move axially along leading screw 11-2, and drives calibration seat 15 to move.
In the present embodiment, driver element 11 is fixedly connected with calibrated mount 1 by an erecting frame 11-4; The base plate of calibrated mount 1 is provided with driver element installation site 17, driver element installation site is at transmitting unthreaded hole 2 and receive between unthreaded hole 3, and erecting frame is fixedly installed on calibrated mount 1 by screw 19.
In the present embodiment, calibrated mount 1 is the U-shaped structure be made up of two side and base plate, the sidewall of calibrated mount 1 is provided with the guide rail 18 to calibration seat 15 transverse shifting guiding; Corresponding calibrated mount 1 rear and front end of guide rail respectively arranges one, has good guidance quality, and bottom calibration seat 15, rear and front end is respectively formed with the pilot hole of overcoat guide rail.
In the present embodiment, launch the elliptical aperture that unthreaded hole 2 is intermediate rectangular two ends semicircular structure, receiving unthreaded hole 3 is borehole structure.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. a dust concentration on-line monitoring self-checking device, it is characterized in that: comprise calibrated mount and be arranged on the alignment unit on calibrated mount in transversely movable mode, described calibrated mount is provided with and launches unthreaded hole and receive unthreaded hole, the lateral displacement position of described alignment unit comprises calibrating position and measuring position;
When alignment unit is positioned at measuring position, light incides region to be measured generation scattering through launching unthreaded hole, and scattered light returns through reception unthreaded hole and measures;
When alignment unit is positioned at calibrating position, returns after light to alignment unit reflects and calibrate.
2. dust concentration on-line monitoring self-checking device according to claim 1, is characterized in that: also comprise the drive system for automatically driving alignment unit to locate movement, described drive system comprises:
Driver element, is arranged on described calibrated mount for driving alignment unit transverse shifting;
Alignment sensor I, described alignment sensor I is arranged on described calibrated mount side and moves to calibrating position for testing calibration unit and output signal;
Alignment sensor II, described alignment sensor II is arranged on described calibrated mount opposite side and moves to measuring position for testing calibration unit and output signal;
Controller, controller input end is connected for receiving output signal with the output terminal of alignment sensor I and alignment sensor II, and described controller exports control command to driver element.
3. dust concentration on-line monitoring self-checking device according to claim 2, is characterized in that: described alignment unit comprises calibration seat and is arranged on the diffuse reflection component on calibration seat, and described diffuse reflection component is Dove prism structure.
4. dust concentration on-line monitoring self-checking device according to claim 3, it is characterized in that: described driver element comprises drive motor, drives the leading screw rotated and the slide block be arranged on leading screw by drive motor, and described slide block is fixedly connected with bottom described calibration seat.
5. dust concentration on-line monitoring self-checking device according to claim 4, is characterized in that: described driver element is fixedly connected with calibrated mount by an erecting frame.
6. dust concentration on-line monitoring self-checking device according to claim 5, is characterized in that: described calibrated mount is the U-shaped structure be made up of two side and base plate, the sidewall of calibrated mount is provided with the guide rail to calibration seat transverse shifting guiding.
7. dust concentration on-line monitoring self-checking device according to claim 6, it is characterized in that: described transmitting unthreaded hole is the elliptical aperture of intermediate rectangular two ends semicircular structure, described reception unthreaded hole is borehole structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610058327.3A CN105547948A (en) | 2016-01-27 | 2016-01-27 | Automatic calibration device for dust concentration on-line monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610058327.3A CN105547948A (en) | 2016-01-27 | 2016-01-27 | Automatic calibration device for dust concentration on-line monitoring |
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| Publication Number | Publication Date |
|---|---|
| CN105547948A true CN105547948A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610058327.3A Pending CN105547948A (en) | 2016-01-27 | 2016-01-27 | Automatic calibration device for dust concentration on-line monitoring |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297875A (en) * | 2017-07-24 | 2019-02-01 | 深圳国技仪器有限公司 | Automatic calibration β ray method particle monitoring instrument |
| CN109357982A (en) * | 2018-11-13 | 2019-02-19 | 重庆川仪分析仪器有限公司 | Dust instrument self-checking device |
| CN111693422A (en) * | 2020-07-17 | 2020-09-22 | 潍坊山前测控技术有限公司 | Real-time calibrating device of turbidity method laser dust meter |
| CN113029892A (en) * | 2020-03-17 | 2021-06-25 | 中国海洋石油集团有限公司 | Method for evaluating reasonability of oil-water relative permeability curve based on regional statistical law |
| CN113933230A (en) * | 2021-10-14 | 2022-01-14 | 苏州苏信环境科技有限公司 | Particle counter capable of carrying out light measurement area modulation and modulation method |
| WO2022105258A1 (en) * | 2020-11-21 | 2022-05-27 | 山东鸣川汽车集团有限公司 | Environmental monitoring method |
| WO2022105901A1 (en) * | 2020-11-21 | 2022-05-27 | 山东鸣川汽车集团有限公司 | Environment monitoring device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297875A (en) * | 2017-07-24 | 2019-02-01 | 深圳国技仪器有限公司 | Automatic calibration β ray method particle monitoring instrument |
| CN109297875B (en) * | 2017-07-24 | 2024-05-03 | 深圳国技仪器有限公司 | Automatic calibration beta-ray method particulate matter monitor |
| CN109357982A (en) * | 2018-11-13 | 2019-02-19 | 重庆川仪分析仪器有限公司 | Dust instrument self-checking device |
| CN109357982B (en) * | 2018-11-13 | 2024-02-09 | 重庆川仪分析仪器有限公司 | Automatic calibrating device for dust meter |
| CN113029892A (en) * | 2020-03-17 | 2021-06-25 | 中国海洋石油集团有限公司 | Method for evaluating reasonability of oil-water relative permeability curve based on regional statistical law |
| CN111693422A (en) * | 2020-07-17 | 2020-09-22 | 潍坊山前测控技术有限公司 | Real-time calibrating device of turbidity method laser dust meter |
| WO2022105258A1 (en) * | 2020-11-21 | 2022-05-27 | 山东鸣川汽车集团有限公司 | Environmental monitoring method |
| WO2022105901A1 (en) * | 2020-11-21 | 2022-05-27 | 山东鸣川汽车集团有限公司 | Environment monitoring device |
| CN113933230A (en) * | 2021-10-14 | 2022-01-14 | 苏州苏信环境科技有限公司 | Particle counter capable of carrying out light measurement area modulation and modulation method |
| CN113933230B (en) * | 2021-10-14 | 2024-05-10 | 苏州苏信环境科技有限公司 | Particle counter capable of modulating light measurement area and modulation method |
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Application publication date: 20160504 |