CN106908437A - A kind of unburned carbon in flue dust portable type measuring method and system - Google Patents
A kind of unburned carbon in flue dust portable type measuring method and system Download PDFInfo
- Publication number
- CN106908437A CN106908437A CN201710152125.XA CN201710152125A CN106908437A CN 106908437 A CN106908437 A CN 106908437A CN 201710152125 A CN201710152125 A CN 201710152125A CN 106908437 A CN106908437 A CN 106908437A
- Authority
- CN
- China
- Prior art keywords
- unburned carbon
- flue dust
- rifle
- measurement
- flue
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/718—Laser microanalysis, i.e. with formation of sample plasma
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Optics & Photonics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of unburned carbon in flue dust portable type measuring method and system, belong to unburned carbon in flue dust field of measuring technique.Its scheme is that system is made up of main frame and measurement rifle, and wherein main frame includes industrial panel computer, control module, industrial power, laser water tank and power supply, and measurement rifle includes laser head, receives optical module, spectrometer.Measuring method：Measurement rifle inserts flue by measured hole, opens host-initiated switch, and emission pulse laser punctures to form plasma, and launch spectral signal in focal zone；Optical module collection spectral signal is received, by Optical Fiber Transmission to spectrometer, network cable transmission to the industrial panel computer after conversion by being connected with main frame is analyzed, and obtains flying marking measurements, is displayed on screen.The measured hole and insertion depth of insertion are robbed by adjusting measurement, the grid survey of relevant criterion requirement can be met.The system is without sampling, short measure the cycle, simple structure, easy care.
Description
Technical field
The present invention relates to unburned carbon in flue dust field of measuring technique, and in particular to a kind of unburned carbon in flue dust portable type measuring method
And system.
Background technology
Unburned carbon in flue dust directly reflects the efficiency of combustion of coal dust in stove, quickly measures unburned carbon in flue dust, helps beneficial to finger
Lead operations staff and correctly adjust coal-air ratio and fineness of pulverized coal.During combustion adjustment test, test efficiency is greatly improved, quickly
Diagnosis boiler performance, ensures the efficient burning of boiler, and reduces the manpower, material resources and financial resources cost needed for testing.Current combustion is adjusted
Flying marking measurement during experiment is sampled on flue, is flown according to burning weight loss method in lab analysis
The carbon containing measurements of ash.The method analysis time is long, causes measurement result in time to reflect current combustion conditions, reduces
The efficiency of combustion adjustment test.It is mostly base additionally, also having unburned carbon in flue dust on-line measurement system to apply at the scene both at home and abroad
In microwave absorption method and quick calcination method.This kind equipment is mostly that flying dust is taken out from flue using sampling gun, works as sampling amount
Or sample time starts detection when reaching preset value, the flying dust for having detected flows back to flue by ash releasing tube again.Sampling gun blocks up ash
One of subject matter that such unburned carbon in flue dust on-line measurement system is present.Wherein, the measuring accuracy of microwave absorption method receives coal
The influence for planting change is larger, and measurement stability and precision are all undesirable；The measure the cycle of quick calcination method generally needs 10-15 points
Clock, it is more difficult to meet the requirement that unburned carbon in flue dust is quickly measured.
To sum up, there is larger hysteresis quality in off-line analysis of the current unburned carbon in flue dust after sampling, and existing
Often due to maintenance is larger, live operational reliability is poor etc., reason causes application effect to unburned carbon in flue dust on-line measurement device
Universal undesirable, these are all unfavorable for the quick diagnosis of boiler performance, and develop unburned carbon in flue dust portable measurement system can be with
Easily the combustion efficiency to boiler is diagnosed.On the other hand, combustion adjustment test is the common method for improving boiler performance,
The portable quick measurement of unburned carbon in flue dust is conducive to improving the efficiency of combustion adjustment test, is that scientific research personnel carries out burning optimization
Work provides effective means.Therefore, using advanced, quick measuring method and release a kind of Novel portable flying marking measure
Amount system, the efficiency to improving combustion adjustment test, realizes that the quick diagnosis of boiler performance are significant.
The content of the invention
It is an object of the invention to solve the problems, such as unburned carbon in flue dust it is quick/on-line measurement result is undesirable, there is provided it is a kind of
For the portable type measuring method and system of flying marking measurement.
Flying marking measuring method of the present invention is achieved through the following technical solutions：
A kind of unburned carbon in flue dust portable type measuring method, it is characterised in that measurement is comprised the following steps：
1. the measured hole by being opened up on flue inserts measurement rifle in flue, opens host-initiated switch, and laser head is opened
Originate and penetrate laser.
2. flue gas forms plasma by laser excitation in the focal zone on measurement rifle top, the fly ash granule stream in flue gas
Quickly excited during through heating region, and emission spectrum signal simultaneously；
3. fly ash granule excites the emission spectrum signal to be formed to be gathered again by spectrum by measuring the receipts optical module in rifle
Instrument is converted, and is analyzed by the industrial panel computer in network cable transmission to main frame, obtains the measured value of unburned carbon in flue dust；
In the measuring process of above-mentioned unburned carbon in flue dust portable type measuring method, the different measurements on measurement rifle insertion flue
Hole, and same measured hole different depth, it is possible to achieve the grid survey of unburned carbon in flue dust in flue.
The portable measurement system of unburned carbon in flue dust of the present invention is achieved through the following technical solutions：
A kind of unburned carbon in flue dust portable measurement system, it is characterised in that it includes main frame (Fig. 1) and measurement rifle (Fig. 2).
Wherein main frame (Fig. 1) is by industrial panel computer (1), control module (2), industrial power (5), laser power supply (3), laser water
Case (4) is constituted, and measurement rifle (Fig. 2) is made up of laser head (17), receipts optical module (16), spectrometer (18).And in the top surface of main frame
There are system power-on switch (12), emergency stop switch (13), status indicator lamp (14) and USB interface (11) and cable interface
(10), left and right sides have louvre (6), and right flank has cooling water inlet (8), coolant outlet (9), power supply and control connection
Mouth (7).There is quartzy plane window (15) in measurement rifle top surface, there are cable interface (22), cooling water inlet (20), cooling water in bottom surface
Outlet (21), power supply and control connector (19).
The relevant parameter of measurement rifle is set by described industrial panel computer (1), including laser intensity and pulse frequency,
The time delay of spectra collection and gate-width；Treatment and analysis spectroscopic data；In the carbon containing measurements of screen display.
Start and stop and parameter setting by described control module (2) control system.
It is that industrial panel computer (1) and control module (2) are powered by described industrial power (5).
It is that the laser head for measuring rifle is powered by described laser power supply (3).
It is laser head supply cooling water in measurement rifle by described laser water tank (4).
By described louvre (6) for the various modules in main frame carry out radiating and cooling.
Described host power supply and control connector (7) are with measurement rifle power supply and control connector (19) by connecting line phase
Even, transfer laser device power supply (3) electric current and control module (2) signal.
Described main frame right flank cooling water inlet (8), coolant outlet (9) is respectively at measurement rifle bottom surface coolant outlet
(21), cooling water inlet (20) connection realizes circulating for water with the laser water tank (4) in main frame.
Described main frame cable interface (10) is connected with measurement rifle cable interface (22), for spectroscopic data to be transmitted to work
Industry panel computer is analyzed.
Described host USB interface (11) derives original spectral data and measurement result.
Described measurement rifle quartz plane window (15) is slightly below top plan, it is capable of reducing using in abrasion, for preventing
Only flue internal fault thing directly contact quartz plane window (15).
Compared with prior art, the invention has the advantages that：
Unburned carbon in flue dust portable type measuring method and system of the invention, by the way that the different surveys on rifle insertion flue will be measured
Metering-orifice, and same measured hole different depth, it is possible to achieve the grid survey of unburned carbon in flue dust in flue, improve flying dust
The reliability of carbon containing measurement, it is possible to obtain the Two dimensional Distribution of unburned carbon in flue dust in flue.The high-energy that laser sends
Laser beam directly punctures flue gas and forms plasma, and the flying dust of heating region is flowed through so as to excite, and solves due to existing
The problem that sampling system is blocked in unburned carbon in flue dust on-line measurement device.Using of the invention based on LIBS skill
The unburned carbon in flue dust portable type measuring method and system of art, it is possible to achieve flying marking measurement is completed in 1 minute, reach quick
The requirement of measurement.
Brief description of the drawings
Fig. 1 is main machine structure schematic diagram of the invention：
Wherein：1. industrial panel computer；2. control module；3. laser power supply；4. laser water tank；5. industrial power；
6. louvre；7. power supply and control connector；8. cooling water inlet；9. coolant outlet；10. cable interface；11.USB interfaces；
12. system power-on switch；13. emergency stop switch；14. status indicator lamps.
Fig. 2 is present invention measurement rifle structural representation：
Wherein：15. quartzy plane windows；16. receive optical module；17. laser heads；18. spectrometers；19. power supplys and control connect
Interface；20. cooling water inlets；21. coolant outlets；22. cable interfaces.
Fig. 3 is actually used schematic diagram of the invention.
Wherein：23. flues
Specific embodiment
Unburned carbon in flue dust is measured using this method：Measurement rifle is inserted in flue by the measured hole opened up on flue, is beaten
Host-initiated switch is driven, laser head starts emission pulse laser beam, and flue gas is by laser excitation in the focal zone on measurement rifle top
Plasma is formed, is quickly excited when the fly ash granule in flue gas flows through heating region, and emission spectrum signal simultaneously,
Fly ash granule excites the emission spectrum signal to be formed to be gathered again by spectrometer conversion by measuring the receipts optical module in rifle, passes through
Industrial panel computer in network cable transmission to main frame is analyzed, and obtains the measured value of unburned carbon in flue dust, is displayed in industrial flat board
On the screen of computer.
Portable measurement system of the invention, as shown in Figure 1 and Figure 2, is made up of main frame and measurement rifle.When starting measurement, will
Measurement rifle inserts the measured hole on flue (23), as shown in Figure 3.Whole system is opened by the system switching button (12) of main frame
System, and the major parameter of measuring system, including laser intensity, pulse frequency, spectra collection are set by industrial panel computer (1)
Time delay and gate-width.Measure frequency emission pulse laser of the laser head (17) in rifle to set, the focusing on measurement rifle top
Flue gas forms plasma by laser excitation in region, is quickly swashed when the fly ash granule in flue gas flows through heating region
Hair, and emission spectrum signal simultaneously, while receive optical module (16) to start to gather signal, Zhi Houguang with gate-width with the time delay for setting
Spectrum signal conversion in spectrometer (18), is analyzed by network cable transmission main frame to industrial panel computer (1), obtains
Flying marking measurement is displayed on industrial panel computer (1) screen, and is stored in industrial panel computer (1).
Claims (13)
1. a kind of unburned carbon in flue dust portable type measuring method, it is characterised in that measurement is comprised the following steps：
1) measured hole by being opened up on flue inserts measurement rifle in flue, opens host-initiated switch, and laser head starts hair
Penetrate laser.
2) flue gas forms plasma by laser excitation in the focal zone on measurement rifle top, and the fly ash granule in flue gas is flowed through
Quickly excited during ion body region, and emission spectrum signal simultaneously；
3) fly ash granule excites the emission spectrum signal to be formed to turn by spectrometer again by measuring the receipts optical module in rifle and gathering
Change, be analyzed by the industrial panel computer in network cable transmission to main frame, obtain the measured value of unburned carbon in flue dust.
2. in the measuring process of unburned carbon in flue dust portable type measuring method according to claim 1, it is characterised in that survey
Amount rifle insertion flue on different measured holes, and same measured hole different depth, it is possible to achieve unburned carbon in flue dust in flue
Grid survey.
3. a kind of unburned carbon in flue dust portable measurement system, it is characterised in that it includes main frame (Fig. 1) and measures rifle (Fig. 2).Its
Middle main frame (Fig. 1) is by industrial panel computer (1), control module (2), industrial power (5), laser power supply (3), laser water tank
(4) constitute, measurement rifle (Fig. 2) is made up of laser head (17), receipts optical module (16), spectrometer (18).And the top surface in main frame has
System power-on switch (12), emergency stop switch (13), status indicator lamp (14) and USB interface (11) and cable interface
(10), left and right sides have louvre (6), and right flank has cooling water inlet (8), coolant outlet (9), power supply and control connection
Mouth (7).There is quartzy plane window (15) in measurement rifle top surface, there are cable interface (22), cooling water inlet (20), cooling water in bottom surface
Outlet (21), power supply and control connector (19).
4. a kind of unburned carbon in flue dust portable measurement system according to claim 3, it is characterised in that described industry is put down
Plate computer (1) measures the relevant parameter of rifle, including laser intensity and pulse frequency, the time delay of spectra collection and door for setting
It is wide；Treatment and analysis spectroscopic data；In the carbon containing measurements of screen display.
5. a kind of unburned carbon in flue dust portable measurement system according to claim 3, it is characterised in that described control mould
Start and stop and parameter setting of the block (2) for control system.
6. a kind of unburned carbon in flue dust portable measurement system according to claim 3, it is characterised in that described industrial electro
Source (5) is for being that industrial panel computer (1) and control module (2) are powered.
7. a kind of unburned carbon in flue dust portable measurement system according to claim 3, it is characterised in that described laser
Power supply (3) to measure the laser head of rifle for powering.
8. a kind of unburned carbon in flue dust portable measurement system according to claim 3, it is characterised in that described laser
Water tank (4) is for being laser head supply cooling water in measurement rifle.
9. a kind of unburned carbon in flue dust portable measurement system according to claim 3, it is characterised in that described louvre
(6) for carrying out radiating and cooling for the various modules in main frame.
10. a kind of unburned carbon in flue dust portable measurement system according to claim 3, it is characterised in that described main frame
Power supply and control connector (7) are connected with measurement rifle power supply and control connector (19) by connecting line, transfer laser device power supply
(3) electric current and control module (2) signal.
A kind of 11. unburned carbon in flue dust portable measurement systems according to claim 3, it is characterised in that described main frame
Right flank cooling water inlet (8), coolant outlet (9) are respectively at measurement rifle bottom surface coolant outlet (21), cooling water inlet
(20) connection realizes circulating for water with the laser water tank (4) in main frame.
A kind of 12. unburned carbon in flue dust portable measurement systems according to claim 3, it is characterised in that described main frame
Cable interface (10) is connected with measurement rifle cable interface (22), is divided for spectroscopic data to be transmitted to industrial panel computer
Analysis.
A kind of 13. unburned carbon in flue dust portable measurement systems according to claim 3, it is characterised in that described main frame
USB interface (11) is for deriving original spectral data and measurement result.
A kind of unburned carbon in flue dust portable measurement system according to claim 3, it is characterised in that described measurement rifle stone
English plane window (15) is slightly below top plan, it is capable of reducing using in abrasion, for preventing flue internal fault thing directly contact
Quartzy plane window (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710152125.XA CN106908437A (en) | 2017-03-15 | 2017-03-15 | A kind of unburned carbon in flue dust portable type measuring method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710152125.XA CN106908437A (en) | 2017-03-15 | 2017-03-15 | A kind of unburned carbon in flue dust portable type measuring method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106908437A true CN106908437A (en) | 2017-06-30 |
Family
ID=59186471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710152125.XA Pending CN106908437A (en) | 2017-03-15 | 2017-03-15 | A kind of unburned carbon in flue dust portable type measuring method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106908437A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426160A (en) * | 2011-08-31 | 2012-04-25 | 华南理工大学 | Online gas-solid two-phase detection method for coal characteristics based on laser induction, and apparatus thereof |
| CN103439300A (en) * | 2013-08-01 | 2013-12-11 | 广东电网公司电力科学研究院 | On-line measuring device for fly ash carbon content of flue |
| CN105181675A (en) * | 2015-09-24 | 2015-12-23 | 华南理工大学 | Fly ash carbon content detecting device and method based on pulse discharge plasma spectrum |
| CN105241851A (en) * | 2015-09-25 | 2016-01-13 | 清华大学 | Solid powder online detection apparatus based on laser-induced breakdown spectroscopy technology |
| CN105527255A (en) * | 2016-01-20 | 2016-04-27 | 华南理工大学 | On-line monitoring system of coal characteristics of as-fired coal |
-
2017
- 2017-03-15 CN CN201710152125.XA patent/CN106908437A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426160A (en) * | 2011-08-31 | 2012-04-25 | 华南理工大学 | Online gas-solid two-phase detection method for coal characteristics based on laser induction, and apparatus thereof |
| CN103439300A (en) * | 2013-08-01 | 2013-12-11 | 广东电网公司电力科学研究院 | On-line measuring device for fly ash carbon content of flue |
| CN105181675A (en) * | 2015-09-24 | 2015-12-23 | 华南理工大学 | Fly ash carbon content detecting device and method based on pulse discharge plasma spectrum |
| CN105241851A (en) * | 2015-09-25 | 2016-01-13 | 清华大学 | Solid powder online detection apparatus based on laser-induced breakdown spectroscopy technology |
| CN105527255A (en) * | 2016-01-20 | 2016-04-27 | 华南理工大学 | On-line monitoring system of coal characteristics of as-fired coal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103175808B (en) | Laser-induced breakdown spectroscopy analysis system and laser-induced breakdown spectroscopy analysis method | |
| CN104297218B (en) | The remote original position of components of metallurgical liquid metal, on-line measuring device and method | |
| CN105136752B (en) | Online powder detection means and its measuring method based on LIBS | |
| CN107402193B (en) | A kind of selective laser fusing forming process online detection instrument based on LIBS | |
| CN102262075B (en) | Method for measuring elemental concentration through laser-induced breakdown spectroscopy based on spectrophotometry | |
| CN106093011B (en) | Coal quality detecting method and its coal quality laser detection analysis instrument of application | |
| CN102590157B (en) | Element spectrum analysis method and laser element exploration equipment adopting same | |
| CN107064543B (en) | Muzzle velocity measuring device based on X-ray | |
| CN210243491U (en) | Coal quality analyzer based on Hadamard near infrared spectrum technology | |
| CN108362682A (en) | A kind of multimode fibre LIBS detection device based on compound constant enhanced spectrum | |
| CN109975274A (en) | A kind of blast furnace molten iron silicon content on-line quick detection device | |
| CN104931474B (en) | The online laser detector of cement slurry quality and method | |
| CN104897624A (en) | Laser-induced breakdown spectroscopy and Raman spectroscopy combination system | |
| CN201145667Y (en) | Spectrometer excited by electric spark with spectral line strength correcting function | |
| CN111398171A (en) | Detection device and detection method | |
| CN107607495B (en) | System and method for detecting total nitrogen content of soil | |
| CN203798735U (en) | Portable laser probe component analyzer based on fiber laser | |
| CN105181675A (en) | Fly ash carbon content detecting device and method based on pulse discharge plasma spectrum | |
| CN103063622B (en) | Portable rapid element composition analyzer | |
| CN108459012A (en) | Portable laser plasma spark electric discharge component spectrum detecting system | |
| CN104198461B (en) | Industrial process gas analyzer based on Raman effect | |
| CN108088813B (en) | On-line detection device for metal elements in molten salt | |
| CN110296919A (en) | A kind of suspended particulate matter concentration monitoring device based near forward scattering light detection | |
| CN207488163U (en) | A kind of unburned carbon in flue dust Portable type measurement unit | |
| CN106908437A (en) | A kind of unburned carbon in flue dust portable type measuring method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170630 |