CN110987746A - High-precision smoke dust instrument - Google Patents
High-precision smoke dust instrument Download PDFInfo
- Publication number
- CN110987746A CN110987746A CN201911313687.3A CN201911313687A CN110987746A CN 110987746 A CN110987746 A CN 110987746A CN 201911313687 A CN201911313687 A CN 201911313687A CN 110987746 A CN110987746 A CN 110987746A
- Authority
- CN
- China
- Prior art keywords
- analysis chamber
- laser
- heating
- heating chamber
- analysis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 32
- 239000000428 dust Substances 0.000 title claims abstract description 24
- 238000004458 analytical method Methods 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims 3
- 230000033001 locomotion Effects 0.000 abstract description 12
- 239000013618 particulate matter Substances 0.000 abstract description 5
- 230000002547 anomalous effect Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 11
- 239000013307 optical fiber Substances 0.000 description 7
- 238000001514 detection method Methods 0.000 description 5
- 230000001788 irregular Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003738 black carbon Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
-
- 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
- G01N15/075—Investigating concentration of particle suspensions by optical means
Landscapes
- 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 a high-precision smoke dust instrument, which comprises a base, a laser emitting component, a laser receiving component and a mounting plate, wherein an analysis chamber outer cylinder is mounted on the mounting plate, an analysis chamber inner cylinder coaxial with the analysis chamber outer cylinder is arranged in the analysis chamber outer cylinder, an analysis chamber is formed in an area in the analysis chamber inner cylinder, a heating cavity is formed in a gap between the analysis chamber outer cylinder and the analysis chamber inner cylinder, a heating wire is arranged in the heating cavity, and an air inlet and an air outlet are arranged on the analysis chamber inner cylinder, and the high-precision smoke dust instrument has the beneficial effects: its design through the heating chamber for the temperature of analysis chamber begins to rise, and gas mobility increases, and there is the inhomogeneous phenomenon of temperature in the heating chamber, makes the analysis chamber lead to the gas in it to take place anomalous movement because the inhomogeneous problem of temperature, and this anomalous movement is more had the promotion effect to being driven the motion because the particulate matter that low temperature subsides has avoided leading to the problem that the testing result is not accurate enough because the low temperature leads to waiting to detect particulate matter subsides in a large batch in the gas.
Description
Technical Field
The invention relates to a smoke dust instrument, in particular to a high-precision smoke dust instrument.
Background
Soot refers to airborne particulates formed during combustion, high temperature melting, chemical reactions, etc. of fuels. Typical smoke is black smoke from a chimney, i.e. small particles of black carbon that are not completely combusted. The particle size of the smoke dust is very small, generally less than 1mg, and the laser dust meter is suitable for rapid determination of the concentration of inhalable particles (PM10) in public places, detection of dust concentration in labor sanitation aspects such as production sites of industrial and mining enterprises and monitoring of the concentration of the inhalable dust in the field of environmental protection.
The backscattering type smoke dust instrument is widely applied to industries such as electric power, petrifaction, metallurgy, heating power, cement and the like, measures parameters such as smoke dust concentration, gaseous pollutant concentration, smoke temperature, smoke pressure, smoke flow rate, smoke oxygen content and the like, calculates corresponding converted concentration, counts corresponding total emission amount, and provides advanced detection means and scientific law enforcement basis for enterprises to check the operation condition of self equipment and environmental protection departments.
The existing optical smoke dust instrument detects smoke dust by using a laser method, but in a low-temperature environment, small particle substances in gas are easy to settle, so that the effects of reflection of laser and the like are reduced, and the detection precision is reduced.
Disclosure of Invention
The invention aims to provide a high-precision smoke dust instrument to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a high accuracy smoke and dust appearance, includes base, laser emission subassembly, laser receiving element and mounting panel, wherein, install the analysis chamber urceolus on the mounting panel, be equipped with rather than coaxial analysis chamber inner tube in the analysis chamber outer tube, the regional analysis chamber that forms in the analysis chamber inner tube, clearance between analysis chamber urceolus and the analysis chamber inner tube forms the heating chamber, the heating intracavity is equipped with the heater strip, is equipped with air inlet and gas outlet on the analysis chamber inner tube, installs laser emission subassembly and laser receiving element in the base, and the light path of the laser beam that laser emission subassembly sent passes through the analysis chamber.
As a further scheme of the invention: and the air inlet and the air outlet are both provided with one-way valves.
As a still further scheme of the invention: the laser emitting device comprises a laser emitting component, and is characterized by further comprising a transmission optical fiber and a reflecting device, wherein the reflecting device is arranged at the position of the output end of the laser emitting component and used for reflecting a laser beam emitted by the laser emitting component, the transmission optical fiber is arranged on one side of the reflecting device, and the end part of the transmission optical fiber is connected with the laser receiving component and used for outputting the laser beam to the laser receiving component.
As a still further scheme of the invention: the angle of the reflecting device is adjustable.
As a still further scheme of the invention: the reflecting device is fixedly installed on an output shaft of the gear box, the gear box is installed in a waist-shaped hole formed in the installation plate through an installation clamping block, an angle adjusting knob is fixed on an input shaft of the gear box, and a plurality of gears in meshing transmission are arranged in the gear box and used for reducing speed.
As a still further scheme of the invention: the heating cavity is also connected with a heating cavity air inlet pipe and a heating cavity air outlet pipe.
As a still further scheme of the invention: and a fan is arranged at the position of the heating cavity air inlet pipe or the heating cavity air outlet pipe.
Compared with the prior art, the invention has the beneficial effects that: its design through the heating chamber for the temperature of analysis chamber begins to rise, and gas mobility increases, and there is the inhomogeneous phenomenon of temperature in the heating chamber simultaneously, makes the analysis chamber lead to the gas in it to take place anomalous movement because the inhomogeneous problem of temperature, and this anomalous movement is more had the promotion effect to the particulate matter that subsides because the low temperature is driven the motion, has avoided waiting to detect that particulate matter subsides in batches in the gas and leads to the not accurate problem of testing result inadequately because the low temperature leads to.
Drawings
Fig. 1 is a schematic structural diagram of a high-precision smoke dust instrument.
Fig. 2 is a schematic structural diagram of a heating cavity in a high-precision smoke instrument.
Fig. 3 is a schematic structural diagram of a reflecting device in a high-precision smoke dust instrument.
In the figure: 1-base, 2-laser emission component, 3-laser receiving component, 4-transmission optical fiber, 5-analysis chamber outer cylinder, 6-analysis chamber inner cylinder, 7-heating wire, 8-heating chamber, 9-analysis chamber, 10-air inlet, 11-air outlet, 12-heating chamber air inlet pipe, 13-heating chamber air outlet pipe, 14-fan, 15-mounting plate, 16-reflection device, 17-gear box, 18-angle adjusting knob, 19-mounting fixture block and 20-output shaft.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Example 1
Referring to fig. 1-2, in the embodiment of the present invention, a high-precision smoke dust instrument includes a base 1, a laser emitting assembly 2, a laser receiving assembly 3, and a mounting plate 15, wherein an outer analysis chamber cylinder 5 is mounted on the mounting plate 15, an inner analysis chamber cylinder 6 coaxial with the outer analysis chamber cylinder 5 is disposed in the outer analysis chamber cylinder 5, an analysis chamber 9 is formed in an area in the inner analysis chamber cylinder 6, a heating cavity 8 is formed in a gap between the outer analysis chamber cylinder 5 and the inner analysis chamber cylinder 6, a heating wire 8 is disposed in the heating cavity 8, an air inlet 10 and an air outlet 11 are disposed on the inner analysis chamber cylinder 6, preferably, check valves are disposed on the air inlet 10 and the air outlet 11, the laser emitting assembly 2 and the laser receiving assembly 3 are mounted in the base 1, a light path of a laser beam emitted by the laser emitting assembly 2 passes through the analysis chamber 9, and when, the heating wire 8 starts to heat, so that the temperature of the analysis chamber 9 starts to rise, the gas mobility is increased, and part of the particulate matters deposited at low temperature are driven to move, so that the problem that the detection result is not accurate enough due to the fact that the large batch deposition of the particulate matters in the gas to be detected is caused by low temperature is solved.
Example 2
Referring to fig. 1-2, in the embodiment of the present invention, the high-precision smoke dust instrument further includes a transmission optical fiber 4 and a reflection device 16, where the reflection device 16 is disposed at an output end position of the laser emission assembly 2 and is configured to reflect a laser beam emitted by the laser emission assembly 2, one side of the reflection device 16 is provided with the transmission optical fiber 4, and an end portion of the transmission optical fiber 4 is connected to the laser receiving assembly 3 and is configured to output the laser beam to the laser receiving assembly 3.
Further, the angle of the reflection device 16 is adjustable. Specifically, the method comprises the following steps: referring to fig. 3, the reflection device 16 is fixedly mounted on an output shaft 20 of the gear box 17, the gear box 17 is mounted in a kidney-shaped hole formed in the mounting plate 15 through a mounting fixture block 19, an angle adjusting knob 18 is fixed on an input shaft of the gear box 17, a plurality of gears in meshing transmission are arranged in the gear box 17 for reducing speed, and when the angle adjusting knob 18 is rotated, the output shaft 20 drives the reflection device 16 to rotate through the speed reducing function of the gear box 17, so as to adjust the angle of the reflection device 16.
Example 3
Referring to fig. 1, in the embodiment of the present invention, a heating chamber air inlet pipe 12 and a heating chamber air outlet pipe 13 are further connected to the heating chamber 8, that is, air flow can be formed in the heating chamber 8 through the heating chamber air inlet pipe 12 and the heating chamber air outlet pipe 13, because the temperature of the position close to the heating chamber air inlet pipe 12 is low, the hot air in the heating chamber 8 has a phenomenon of uneven temperature, and the uneven temperature is also transmitted into the analysis chamber 9, so that the gas in the analysis chamber 8 can generate irregular motion due to the uneven temperature, and the irregular motion has a promoting effect on the movement of the particulate matter which is settled at low temperature.
Further, a fan 14 is installed at the position of the heating cavity air inlet pipe 12 or the heating cavity air outlet pipe 13, and in the attached drawings of the present invention, the fan 14 is arranged at the position close to the heating cavity air outlet pipe 13 in the base 1.
The embodiment of the invention provides a high-precision smoke dust instrument, which has the advantages that through the design of the heating cavity 8, the temperature of the analysis chamber 9 begins to rise, the gas fluidity is increased, meanwhile, the phenomenon of uneven temperature exists in the heating cavity 8, so that the gas in the analysis chamber 8 can generate irregular motion due to the problem of uneven temperature, the irregular motion has a promoting effect on the driven motion of the particulate matters settled at low temperature, and the problem that the detection result is not accurate enough due to the large-batch settlement of the particulate matters in the gas to be detected caused by low temperature is solved.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. The utility model provides a high accuracy smoke and dust appearance, includes base (1), laser emission subassembly (2), laser receiving assembly (3) and mounting panel (15), its characterized in that, install analysis chamber urceolus (5) on mounting panel (15), be equipped with analysis chamber inner tube (6) rather than coaxial in analysis chamber urceolus (5), the regional analysis chamber (9) that forms in analysis chamber inner tube (6), clearance between analysis chamber urceolus (5) and the analysis chamber inner tube (6) forms heating chamber (8), be equipped with heater strip (8) in heating chamber (8), be equipped with air inlet (10) and gas outlet (11) on analysis chamber inner tube (6), install laser emission subassembly (2) and laser receiving assembly (3) in base (1), and the light path of the laser beam that laser emission subassembly (2) sent passes through analysis chamber (9).
2. A high precision smoke instrument according to claim 1, wherein said air inlet (10) and said air outlet (11) are equipped with one-way valves.
3. A high precision smoke dust instrument according to claim 1, further comprising a transmission fiber (4) and a reflection device (16), wherein said reflection device (16) is disposed at the output end position of said laser emission component (2) for reflecting the laser beam emitted from said laser emission component (2), one side of said reflection device (16) is provided with said transmission fiber (4), the end of said transmission fiber (4) is connected with said laser receiving component (3) for outputting the laser beam to said laser receiving component (3).
4. A high accuracy smoke detector according to claim 1, 2 or 3 wherein said reflecting means (16) is angularly adjustable.
5. A high-precision smoke instrument according to claim 4, wherein said reflection device (16) is fixedly installed on an output shaft (20) of a gear box (17), said gear box (17) is installed in a kidney-shaped hole arranged on said installation plate (15) through an installation fixture block (19), an angle adjusting knob (18) is fixed on an input shaft of said gear box (17), and a plurality of gears in meshing transmission are arranged in said gear box (17) for reducing speed.
6. A high accuracy smoke detector according to claim 1 or 2 or 3 or 5 wherein said heating chamber (8) is further connected to a heating chamber air inlet pipe (12) and a heating chamber air outlet pipe (13).
7. A high accuracy smoke and dust instrument according to claim 6, wherein said heating chamber air inlet pipe (12) or heating chamber air outlet pipe (13) is installed with a fan (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911313687.3A CN110987746A (en) | 2019-12-19 | 2019-12-19 | High-precision smoke dust instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911313687.3A CN110987746A (en) | 2019-12-19 | 2019-12-19 | High-precision smoke dust instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110987746A true CN110987746A (en) | 2020-04-10 |
Family
ID=70095765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911313687.3A Pending CN110987746A (en) | 2019-12-19 | 2019-12-19 | High-precision smoke dust instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110987746A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324098A (en) * | 2022-03-10 | 2022-04-12 | 南京波瑞自动化科技有限公司 | Double-light-path laser forward scattering particulate matter concentration measuring device |
-
2019
- 2019-12-19 CN CN201911313687.3A patent/CN110987746A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324098A (en) * | 2022-03-10 | 2022-04-12 | 南京波瑞自动化科技有限公司 | Double-light-path laser forward scattering particulate matter concentration measuring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101069042B1 (en) | A chamber configuration adapted for a particle detector having an inlet through which fluid is adapted to flow at a first velocity | |
| CN101147054B (en) | Exhaust gas analyzer | |
| Fourguette et al. | Two-dimensional Rayleigh thermometry in a turbulent nonpremixed methane-hydrogen flame | |
| CN102183492B (en) | Three-band integrated atmospheric aerosol particle scattering coefficient measuring instrument and measuring method | |
| CN110987746A (en) | High-precision smoke dust instrument | |
| CN105865997A (en) | Atmospheric raise dust concentration measuring device and method based on forward scattering principle | |
| CN104729890A (en) | PM2.5 (Particulate Matter 2.5) source analyzing and sampling device based on flow feedback control | |
| CN109211836A (en) | Plug-in type laser gas analysis device and method | |
| CN107314958B (en) | Laser dust concentration measuring device with self-calibration device and method | |
| CN201255720Y (en) | Optical measurement device for bug dust | |
| DE102006004605B4 (en) | Arrangement for concentration measurement for exhaust gas components in the exhaust gas area of a furnace | |
| CN200979456Y (en) | An optical temperature measurement sensor | |
| CN2789760Y (en) | Fumes discharging continuous monitoring instrument | |
| US7733486B2 (en) | Environmental sensor including a baffle | |
| CN212031240U (en) | Particle sensor probe and particle sensor | |
| CN104502313A (en) | Novel optical platform for transmission style smoke limit meter | |
| CN113252611A (en) | High-precision light scattering particle concentration monitor and monitoring method | |
| CN203785785U (en) | Illumination test equipment | |
| CN111122405A (en) | Particle sensor probe and particle sensor | |
| CN209311329U (en) | A kind of quasi- the escaping of ammonia detection device in situ of flue gas denitrification system | |
| CN210401145U (en) | Ultralow dust measuring device | |
| Andres et al. | Measuring soot particles from automotive exhaust emissions | |
| CN204269518U (en) | A kind of signal piping device of optical table of transmission-type smoke meter | |
| CN217033626U (en) | High-precision light scattering particle concentration monitor | |
| CN205091279U (en) | Integration X fluorescence analyser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200410 |