CN111366514A - Smoke dust measuring system and implementation method thereof - Google Patents
Smoke dust measuring system and implementation method thereof Download PDFInfo
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- CN111366514A CN111366514A CN202010333250.2A CN202010333250A CN111366514A CN 111366514 A CN111366514 A CN 111366514A CN 202010333250 A CN202010333250 A CN 202010333250A CN 111366514 A CN111366514 A CN 111366514A
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- receiver
- smoke
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- transmission
- digital signals
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- 239000000779 smoke Substances 0.000 title claims abstract description 72
- 239000000428 dust Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 48
- 238000005259 measurement Methods 0.000 claims abstract description 33
- 230000003287 optical effect Effects 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000004071 soot Substances 0.000 claims 4
- 238000000149 argon plasma sintering Methods 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000005272 metallurgy 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
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- 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
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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 provides a smoke and dust measuring system.A back scattering measuring component is fixed at one side of a smoke and dust channel through a connecting flange, and a side scattering measuring component and a transmission measuring component are respectively fixed at the upper end and the lower end of the other side of the smoke and dust channel through the connecting flange; the back scattering measurement assembly comprises a laser transmitter and a back scattering receiver, the transmission measurement assembly comprises a transmission receiver, and the side scattering measurement assembly comprises a side scattering receiver; the back scattering receiver, the transmission receiver and the side scattering receiver are all connected with NB-IOT modules, the NB-IOT modules are used for receiving digital signals converted from optical signals by the back scattering receiver, the transmission receiver and the side scattering receiver and transmitting the digital signals to the master control host, the master control host comprises a computer and a wireless transceiver, the wireless transceiver is used for receiving the digital signals to the master control host, and the computer is used for generating smoke dust concentration according to the digital signals and storing the smoke dust concentration; compared with the traditional measuring method, the method overcomes the limitation of a light scattering principle and a light transmission principle, thereby improving the accuracy of the smoke concentration.
Description
Technical Field
The invention belongs to the technical field of smoke monitoring, and particularly relates to a smoke measuring system and an implementation method thereof.
Background
The current optical method for measuring smoke dust mainly comprises a light scattering method and a light transmission method. At present, smoke dust is measured by selecting one method, but due to the changeability of the current measuring object and the change of the use environment, the instrument needs to be corrected frequently; due to the limitations of the light scattering principle and the light transmission principle, one measurement method has certain limitations.
Disclosure of Invention
The invention aims to provide a smoke dust measuring system and an implementation method thereof, which aim to solve the problem that in the prior art, a single principle is used in smoke dust measurement, but when the state change of particulate matters in a measuring medium is large, the measuring result has large deviation due to the limitation of the principle.
The invention provides the following technical scheme:
a smoke and dust measuring system and its implement method, including back scattering measurement module, transmission measurement module, side scattering measurement module and total control host computer, the said back scattering measurement module is fixed to one side of smoke and dust channel through the attachment flange, said side scattering measurement module and said transmission measurement module are fixed to the upper and lower both ends of the other side of smoke and dust channel through the attachment flange separately; the back scattering measurement assembly comprises a laser transmitter and a back scattering receiver, the transmission measurement assembly comprises a transmission receiver, the transmission receiver is arranged on an emergent light line of the laser transmitter, the side scattering measurement assembly comprises a side scattering receiver, and the side scattering receiver is arranged at a position which is symmetrical with the back scattering receiver in the left-right direction and symmetrical with the transmission receiver in the up-down direction; the back scattering receiver, the transmission receiver and the side scattering receiver are all connected with NB-IOT modules, the NB-IOT modules are used for receiving digital signals converted from optical signals by the back scattering receiver, the transmission receiver and the side scattering receiver and transmitting the digital signals to the master control host, the master control host comprises a computer and a wireless transceiver, the wireless transceiver is used for receiving the digital signals to the master control host, and the computer is used for generating smoke dust concentration according to the digital signals and storing the smoke dust concentration.
Preferably, the back scattering measurement assembly, the transmission measurement assembly and the side scattering measurement assembly are all fixed at an angle of 45 degrees with the smoke channel.
Preferably, the laser emitter is connected with a laser power control unit, and the laser power control unit is used for driving the laser emitter to emit 650nm red laser.
Preferably, the incident light side of the transmission receiver, the side back scattering receiver and the side scattering receiver is provided with a protective lens, and the surface of the protective lens is plated with a dustproof and haze-proof film.
Preferably, a back-blowing joint is further arranged between the back-scattering measurement assembly and the connecting flange and used for introducing air to protect and dissipate heat of the laser transmitter and the back-scattering receiver.
6. A realization method of a smoke dust measuring system comprises the following steps:
s1, emitting light rays emitted by the laser emitter enter from one end of the smoke channel, and measured smoke containing smoke passes through the smoke channel; s2, after the emergent light enters smoke containing smoke dust, transmitted light, side scattering light and back scattering light are generated; s3, receiving the transmitted light by the transmission receiver, receiving the side scattered light by the side scattering receiver and receiving the back scattered light by the back scattering receiver; s4, the transmission receiver, the scattering receiver and the back scattering receiver respectively process the obtained optical signals and generate digital signals; and S5, transmitting the three groups of digital signals to a computer through the NB-IOT module and the wireless transceiver respectively, and further processing the three groups of digital signals by the computer to obtain and store smoke dust concentration.
Preferably, in S4, the processing the optical signal and generating the digital signal includes: and comparing the light intensity value of the light signal with a scattering/transmission light intensity and smoke concentration relation curve obtained by laboratory calibration in advance to obtain the smoke concentration.
Preferably, in S5, the step of further processing the three sets of digital signals by the computer to obtain the smoke concentration includes: different weights are set for the three groups of digital signals, and the final smoke concentration is obtained in a weighted summation mode.
The invention has the beneficial effects that:
the invention relates to a smoke measuring system and an implementation method thereof, which are mainly used in places where smoke is measured by originally applying an optical smoke instrument in the industries of environmental protection, metallurgy, cement, chemical engineering and the like.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic flow diagram of the present invention.
Detailed Description
As shown in fig. 1-2, a smoke measuring system comprises a back scattering measuring component 1, a transmission measuring component 2, a side scattering measuring component 3 and a master control host, wherein the back scattering measuring component 1 is fixed on one side of a smoke channel 5 through a connecting flange 4, and the side scattering measuring component 3 and the transmission measuring component 2 are respectively fixed on the upper end and the lower end of the other side of the smoke channel 5 through the connecting flange 4; the back scattering measurement component 1, the transmission measurement component 2 and the side scattering measurement component 3 are fixed with the smoke channel 5 at an angle of 45 degrees;
the backscattering measurement component 1 comprises a laser transmitter 11 and a backscattering receiver 12, wherein the laser transmitter 11 is connected with a laser power control unit, and the laser power control unit is used for driving the laser transmitter 11 to emit 650nm red laser; the transmission measurement assembly 2 comprises a transmission receiver 21, the transmission receiver 21 is arranged on the emergent light of the laser transmitter 11, the side scattering measurement assembly 3 comprises a side scattering receiver 31, and the side scattering receiver 31 is arranged at the position which is symmetrical with the back scattering receiver 12 in the left-right direction and symmetrical with the transmission receiver 21 in the up-down direction; protective lenses are arranged on the incident light sides of the transmission receiver 21, the back scattering receiver 12 and the side scattering receiver 31, and the surfaces of the protective lenses are plated with dustproof and haze-proof films; a back-blowing joint is arranged between the back-scattering measurement component 1 and the connecting flange 4 and is used for introducing air to protect and dissipate heat of the laser transmitter 11 and the back-scattering receiver 12;
the back scattering receiver 12, the transmission receiver 21 and the side scattering receiver 31 are all connected with NB-IOT modules, the NB-IOT modules are used for receiving digital signals converted from optical signals by the back scattering receiver 12, the transmission receiver 21 and the side scattering receiver 31 and transmitting the digital signals to the master control host, the master control host comprises a computer and a wireless transceiver, the wireless transceiver is used for receiving the digital signals to the master control host, and the computer is used for generating smoke dust concentration according to the digital signals and storing the smoke dust concentration.
The implementation method of the smoke measuring system in the specific embodiment comprises the following steps:
s1, emitting light rays emitted by the laser emitter 11 enter from one end of the smoke channel 5, and smoke containing smoke to be measured passes through the smoke channel 5;
s2, after the emergent light enters smoke containing smoke dust, transmitted light, side scattering light and back scattering light are generated;
s3, the transmitted light is received by the transmission receiver 21, the side scattered light is received by the side scattering receiver 31, and the back scattered light is received by the back scattering receiver 12;
s4, the transmission receiver 21, the side scattering receiver 31 and the back scattering receiver 12 respectively process the obtained optical signals and generate digital signals; the optical signal processing and digital signal generation includes: comparing the light intensity value of the light signal with a scattering/transmission light intensity and smoke concentration relation curve obtained by laboratory calibration in advance to obtain smoke concentration;
s5, transmitting the three groups of digital signals to a computer through the NB-IOT module and the wireless transceiver respectively, and further processing the three groups of digital signals by the computer to obtain smoke dust concentration and storing the smoke dust concentration; the computer further processes the three groups of digital signals and obtains the smoke concentration, which comprises the following steps: different weights are set for the three groups of digital signals, and the final smoke concentration is obtained in a weighted summation mode.
Labeled as:
1 backscatter measurement assembly 11 laser transmitter 12 backscatter receiver
2 transmission measurement assembly 21 transmission receiver
3 side scatter measurement Assembly 31 side scatter receiver
4 connecting flange
5 smoke passage.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A smoke and dust measuring system is characterized by comprising a back scattering measuring component, a transmission measuring component, a side scattering measuring component and a master control host, wherein the back scattering measuring component is fixed on one side of a smoke and dust channel through a connecting flange; the back scattering measurement assembly comprises a laser transmitter and a back scattering receiver, the transmission measurement assembly comprises a transmission receiver, the transmission receiver is arranged on an emergent light line of the laser transmitter, the side scattering measurement assembly comprises a side scattering receiver, and the side scattering receiver is arranged at a position which is symmetrical with the back scattering receiver in the left-right direction and symmetrical with the transmission receiver in the up-down direction; the back scattering receiver, the transmission receiver and the side scattering receiver are all connected with NB-IOT modules, the NB-IOT modules are used for receiving digital signals converted from optical signals by the back scattering receiver, the transmission receiver and the side scattering receiver and transmitting the digital signals to the master control host, the master control host comprises a computer and a wireless transceiver, the wireless transceiver is used for receiving the digital signals to the master control host, and the computer is used for generating smoke dust concentration according to the digital signals and storing the smoke dust concentration.
2. A soot measuring system according to claim 1, wherein said back-scattering measurement assembly, transmission measurement assembly and side-scattering measurement assembly are all fixed at 45 ° to the soot channel.
3. The smoke measuring system of claim 1, wherein said laser emitter is connected to a laser power control unit, said laser power control unit is used for driving said laser emitter to emit 650nm red laser light.
4. The smoke and dust measuring system of claim 1, wherein said transmission receiver, said back scattering receiver and said side scattering receiver are all provided with a protective lens on the incident light side, and the surface of said protective lens is coated with dust-proof and haze-proof film.
5. The soot measuring system of claim 1, wherein a blowback connector is further disposed between said backscatter measuring assembly and said attachment flange for introducing air to protect and dissipate heat from said laser transmitter and said backscatter receiver.
6. A realization method of a smoke dust measuring system is characterized by comprising the following steps:
s1, emitting light rays emitted by the laser emitter enter from one end of the smoke channel, and measured smoke containing smoke passes through the smoke channel;
s2, after the emergent light enters smoke containing smoke dust, transmitted light, side scattering light and back scattering light are generated;
s3, receiving the transmitted light by the transmission receiver, receiving the side scattered light by the side scattering receiver and receiving the back scattered light by the back scattering receiver;
s4, the transmission receiver, the side scattering receiver and the back scattering receiver respectively process the obtained optical signals and generate digital signals;
and S5, transmitting the three groups of digital signals to a computer through the NB-IOT module and the wireless transceiver respectively, and further processing the three groups of digital signals by the computer to obtain and store smoke dust concentration.
7. The method of claim 6, wherein in the step S4, the processing the optical signal and generating the digital signal includes: and comparing the light intensity value of the light signal with a scattering/transmission light intensity and smoke concentration relation curve obtained by laboratory calibration in advance to obtain the smoke concentration.
8. The method of claim 6, wherein the step of further processing the three sets of digital signals and obtaining the soot concentration by the computer in step S5 comprises: different weights are set for the three groups of digital signals, and the final smoke concentration is obtained in a weighted summation mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010333250.2A CN111366514A (en) | 2020-04-24 | 2020-04-24 | Smoke dust measuring system and implementation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010333250.2A CN111366514A (en) | 2020-04-24 | 2020-04-24 | Smoke dust measuring system and implementation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111366514A true CN111366514A (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010333250.2A Pending CN111366514A (en) | 2020-04-24 | 2020-04-24 | Smoke dust measuring system and implementation method thereof |
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| Country | Link |
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| CN (1) | CN111366514A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557272A (en) * | 2020-12-23 | 2021-03-26 | 南京波瑞自动化科技有限公司 | Multi-principle smoke measuring instrument |
-
2020
- 2020-04-24 CN CN202010333250.2A patent/CN111366514A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557272A (en) * | 2020-12-23 | 2021-03-26 | 南京波瑞自动化科技有限公司 | Multi-principle smoke measuring instrument |
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