CN107121713A - A kind of self-operated measuring unit and its scaling method of chimney rain or gypsum rain settling amount - Google Patents
A kind of self-operated measuring unit and its scaling method of chimney rain or gypsum rain settling amount Download PDFInfo
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- CN107121713A CN107121713A CN201710384589.3A CN201710384589A CN107121713A CN 107121713 A CN107121713 A CN 107121713A CN 201710384589 A CN201710384589 A CN 201710384589A CN 107121713 A CN107121713 A CN 107121713A
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- 238000004062 sedimentation Methods 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 238000012545 processing Methods 0.000 claims abstract description 19
- 238000003384 imaging method Methods 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 12
- 238000005070 sampling Methods 0.000 claims abstract description 10
- 238000004458 analytical method Methods 0.000 claims description 15
- 238000009826 distribution Methods 0.000 claims description 13
- 238000011496 digital image analysis Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000001186 cumulative effect Effects 0.000 claims description 3
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- 238000012252 genetic analysis Methods 0.000 abstract description 2
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- 238000003556 assay Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/14—Rainfall or precipitation gauges
-
- 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
- G01N15/04—Investigating sedimentation of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/18—Testing or calibrating meteorological apparatus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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Abstract
The present invention provides the self-operated measuring unit and its scaling method of a kind of chimney rain or gypsum rain settling amount, and it includes one and is used for gathering the sampling module of chimney rain or gypsum rain sedimentation liquid, one is used for being acquired the image of sedimentation liquid and the IMAQ and digital module of digitized processing, the image procossing and output module that the sedimentation liquid image to the collection is handled and exported and the cabinet for setting the sampling module, IMAQ and digital module and image procossing and output module.Chimney rain or the self-operated measuring unit of gypsum rain settling amount that the present invention is provided, largely solve the problems, such as imaging noise and measurement error that different reasons bring, further segmented simultaneously for particle, be conducive to chimney rain or gypsum rain genetic analysis, formulate control way, with can long period is continuously measured, accuracy of measurement and precision are improved, count accurate, grain diameter measurement scope is wide, the features such as from artificial disturbance.
Description
Technical field
The pollutant monitoring in energy-conserving and environment-protective field, more particularly to a kind of wet desulphurization chimney rain or gypsum rain settling amount are automatic
Measurement apparatus.
Background technology
The wet desulphurization of partial fuel coal unit uses wet stack mode.Wet chimney includes wet flue system and Wet chimney system
System, the flue gas flowed through is in wet saturation state, and carries discontinuous liquid water droplets.These drops are become in flow of flue gas by streamline
Change, temperature reduction, secondary droplets of flow of flue gas etc. are acted on, and partial drop takes throat out of with flue gas stream and enters ambient air.
Due to the influence of ambient wind velocity, humidity, plume rise power and drop gravity, there is drop in the ambient wind downwind area of chimney
Sedimentation, the phenomenon is referred to as chimney rain, when containing components in desulfurization gypsum in drop, is commonly called as gypsum rain.Chimney rain or gypsum
Rain because containing acidic components, high salt component and covering, sour corrosion etc. are produced on surrounding enviroment, building, vegetation etc. to be influenceed.
At present, this kind of ambient influnence lacks legal appraisal procedure and measuring instrument.
Chimney rain or gypsum rain show as droplet settling to earth's surface to directly affecting for environment, form circular or similar round heavy
Spot drops.Figureofmerit can be settled to the discharge of chimney rain or gypsum rain to measure and assess.Settling amount index definition is：It is single
Deposited concentration in position time, unit area, can be mass concentration, number concentration and coverage rate, unit is respectively：mg·m-2·d-1, individual m-2·d-1With %.
Measurement before this is also easy to produce man's activity using sedimentation plate collection-manual measurement and counting mode, and measurement is accurate
Degree, measurement error are larger.Instrumentation there is no to provide in market.
The content of the invention
In order to realize foregoing invention purpose, the present invention provides the automatic measurement dress of a kind of chimney rain or gypsum rain settling amount
Put, it includes one and is used for gathering the sampling module of chimney rain or gypsum rain sedimentation liquid, one is used for adopting the image of sedimentation liquid
Collect the figure that simultaneously IMAQ of digitized processing is handled and exported with digital module, the sedimentation liquid image to the collection
As processing is with output module and for setting the sampling module, IMAQ and digital module and image procossing and output
The cabinet of module.
Further, the sampling module is used for gathering the sedimentation of the sedimentation liquid comprising a top for being arranged on the cabinet
Liquid collection plate and for aid in described image collection be arranged on the collection plate top digital module digital picture
The secondary light source of collection.
Further, described image collection and digital module are by Zoom optic lens, high resolution industrial camera and tune
Controller composition is saved, wherein, the Zoom optic lens automatically adjust focal length and aperture by regulation controller according to image quality,
And focal imaging, while picture signal is converted into data signal by the industrial camera, and by the regulation controller control with
Just by described focal imaging correct exposure and automated imaging.
Further, described image processing and output module are by industrial computer, digital image analysis module and data output group
Part is constituted, wherein the digital image analysis module is by measurement and analysis module, data processing and output module, image adjustment mould
Block is constituted.
Further, the measurement is as follows with the analysis module course of work：
a)：Obtain image n+1 numerical signals；
b):Image n+1 is preserved；
c):3rd step：Image n+1 is handled and compared with image n；
d):4th step：The spot information of the newly-increased sedimentation liquid of the measurement ← identification of vector machine (SVM) pattern (diameter containing tiling, number
Amount)；
e):5th step：Information processing, that is, record drop tiling diameter, quantity；It is straight according to tiling diameter conversion sedimentation drop
Footpath；Tiling diameter, size droplet diameter classification；Sedimentation quality is calculated with sedimentation barkometer according to size droplet diameter；According between camera time
Every with the areal calculation sedimentation liquid mass concentration of collection plate 101, number concentration, particle diameter distribution, tiling diameter coverage rate；And
f):6th step：Data record, preservation after processing.
Further, the data processing and the output module course of work are as follows：
1):First step items preserve database
2):Export and require according to curve, export real-time curve；It is defeated with Excel according to Output of for ms requirement and beginning and ending time
Go out real time data；
3):According to the average value beginning and ending time (1min, 5min....1h, 2h...1d, 2d....) of setting, calculate；
4):Required according to distribution table/figure output, output volume, the distribution of quantity differential and cumulative distribution table and figure；And
5):Export and require according to curve, export Mean curve；It is defeated with Excel according to Output of for ms requirement and beginning and ending time
Go out mean data.
Further, spherical liquid-drop diameter d used and the ratio between tiling diameter D on collection plate calculates acquisition in the analysis module
Correlation N, the correlation N metering systems are as follows：
1):The dropper of certain outlet diameter prepares spherical droplets, freely falls on collection plate, is weighed according to gravimetric method, leads to
Cross spherical calculating and measure di；
2):With drop tiling diameter Di on microscope tape measure collection plate；
3):Space diameter di is calculated except tiling diameter Di and is obtained correlation Ki；
4):4th step, the Ni is inputted the analysis module of the digital image analysis module；
5)：Different size dropper forms different d and D, calculates and obtains one group of K, the digital image analysis is inputted respectively
The analysis module of module.
6)：Multiple demarcation：Same operation is carried out on the self-operated measuring unit of the chimney rain or gypsum rain settling amount, is obtained
To instrument measurements di`.Then di is compared with di`, measured value deviation answers ≯ 5%.
Further, the collection plate is in the top of box body, and the upper end surrounding of box body has a flange to be used as support
The collection plate.
Chimney rain or the self-operated measuring unit of gypsum rain settling amount that the present invention is provided, based on the analysis of single frames list exposure image
Technology, cooperation SVMs (SVM) pattern identification technology, can largely solve the imaging noise that different reasons are brought
With measurement error problem, further segmented simultaneously for particle, be conducive to the analysis of chimney rain or the gypsum rain origin cause of formation and control.It is
For the uniqueness of the device of the design.Measurement result provides objective measurement data, and diversified forms are provided by data processing
Measurement result.Compared with hand dipping method, with can long period is continuously measured, accuracy of measurement and precision are improved, count accurate
Really, grain diameter measurement scope is wide, the features such as from artificial disturbance.
The device of the present invention can preferably catch the chimney rain drop for being easy to evaporate in environment space, particularly fine particle
Rapid draing.Do not influenceed by solid content, ion concentration in drop.Droplet registration can be preferably distinguished, eliminates therefore and produces
Raw minus deviation.The surface characteristics of collection plate can be estimated.Sky can be reduced by settling the plane characteristic of drop by scaling method
Between feature, be chimney rain or gypsum rain control technical support is provided.
The device of the present invention can export real time data, the average in different time and data form, change according to demand and become
The measurement result of the diversified forms such as gesture figure.
The chimney rain of the present invention or the self-operated measuring unit of gypsum rain settling amount, based on image method principle, using voluntarily setting
The image analysis software of meter, to the measurement of size droplet diameter in sedimentation liquid collection plate, number, coverage rate, there is provided chimney rain or gypsum
The measurement result of rain settling amount.Measurement data can be shown in a variety of forms as required.The present apparatus is based on single frames list exposure image
Analytical technology, cooperation SVMs (SVM) pattern identification technology, can largely solve the imaging that different reasons are brought
Noise and error problem, it is ensured that measurement quality.Based on these technologies and sedimentation Liquid Drop Features, voluntarily worked out using C Plus Plus
Image analysis software, by the conversion of tile diameter and spherical diameter correlation N, with direct measurement sedimentation liquid coverage rate, is pushed away
Survey sedimentation liquid-drop diameter and counting, the function of grain size grading；By the control of front and rear image pickup time interval, sedimentation liquid is eliminated
Evaporate the caused error that destroys the evidence；Export the measurement result of diversified forms.For chimney rain or gypsum rain genetic analysis and control way
Formulate and foundation is provided.
The device of the present invention can be made into the portable surveying instrument of integration, can independent data processing and output, realize online
Measure function.Layouted and measured according to certain rule by many table apparatus, the measurement system of chimney rain or gypsum rain discharge can be constituted,
With reference to influence factors such as emission source intensity, ambient atmospheric conditions and surface roughnesses, the objective evaluation of the emission source is formed.For system
Determine control way and foundation is provided.
Brief description of the drawings
Fig. 1 is the wet desulphurization chimney rain of the present invention or the schematic diagram of gypsum rain settling amount self-operated measuring unit；
Fig. 2 is Fig. 1 wet desulphurization chimney rain or the theory diagram of gypsum rain settling amount self-operated measuring unit；
Fig. 3 is Fig. 1 wet desulphurization chimney rain or the detailed construction schematic diagram of gypsum rain settling amount self-operated measuring unit；
Fig. 4 is measurement and the course of work flow chart of analysis module of the present invention；
Fig. 5 is data processing and the output module course of work flow chart of the present invention；
Fig. 6 is the operating diagram of multiple on-line measurement systems of the present invention.
Embodiment
Referring to the self-operated measuring unit of Fig. 1 to Fig. 6, the present invention chimney rain provided or gypsum rain settling amount by sampling module
100th, IMAQ and digital module 200, image procossing and output module 300 are constituted and cabinet 400 is constituted.Above three
Module is integrated in cabinet 400, is closed, is easy to carry by a lid.
The shape of cabinet 400 is cell type with cover, and square (class square) or circular is portable.Can be by materials such as PVC, aluminium alloys
Make, can be made of 3D printing technique.
The box body 410 of cabinet 400 is relatively deep, and collection plate 110 is in the top of box body 410.The upper end surrounding of box body 410 is provided with
About 10mm flange is used for supporting collection plate 110.The lid 420 of cabinet 400 is shallower, is covered in the top of box body 410, with box body
410 are attached with hinges with lock 430.In device in use, lid 420 can unload box body 410, not influence drop
Collection.
In box body 410, be arranged in order on or near the axis of collection plate for collection plate 110, optical lens 210,
Industrial camera 220.Adjust controller 230 and be arranged on side with output module 300 with image procossing.
Box body 410 also can be provided with detachable side panel side is local, with facilitate from side open regulation controller 230 with
Maintenance, maintenance of the image procossing with output module 300.Collection plate 110 is detachable, with facilitate collection plate 110, optical lens 210,
Maintenance, the maintenance of industrial camera 220.
Sampling module 100 is made up of sedimentation liquid collection plate 110 and secondary light source 120.Sedimentation liquid collection plate 110 is placed in measurement
Device topmost and upwardly.Drop lands and forms the liquid layer of tiling in the surface of collection plate 110, and profile is circular or approximate circle.
Sedimentation liquid collection plate 110 can be by glass, lucite (polymethyl methacrylate macromolecule, PMMA) or other are saturating
Bright material is made, and is shaped as square or circle, about 0.1-0.2m2, wherein, square effective edge is a length of, for example, 316mm ×
316mm.Circular effective diameter is 357mm.The surface of collection plate 110 can be smooth original material surface, can also coat parent
Water paint is used as surface, it is ensured that effective diffusion of sedimentation liquid so that tiling drop outline on collection plate 110 is clear.
The surrounding of sedimentation liquid collection plate 110 sets several secondary light sources 120, is used up as quiescent imaging, to ensure low photograph
Degree is measured with night to be needed.The intensity of light source of setting, which should be maintained on sedimentation liquid collection plate 110, uniform light intensity.Secondary light source
120 using by the controlling switch of module 300.When detecting illumination deficiency, secondary light source 120 is opened during exposing.Secondary light source
120 must keep collection plate region uniform-illumination, deviation ≯ 10%.
Sedimentation liquid collection plate 110 is fixed on outer by the flange support of the wall of measurement apparatus shell 400 4 by right angle section bar 130
On shell 400.Right angle section bar 130 is made of resistant material (such as PVC), surface matt areflexia.
Referring to Fig. 3, collection plate 110 is arranged on cabinet 400, with the C-shaped surrounding edge of rubber packing 140, Ran Hou ∟ 10mm
The surrounding edge of plastics (PVC or other) right angle section bar 130 be secured to, with cabinet 400 flange formation fixture.With screw straight
The side of angle section 130 is fixed on cabinet 400.The wide 10mm of flange, with cabinet same material.
IMAQ is controlled with digital module 200 by Zoom optic lens 210, high resolution industrial camera 220, regulation
Device 230 processed is constituted.Optical lens 210 can be by one or more groups of optical glass microscope groups into, short focus, wide-angle, heavy caliber, variable
Burnt, low distortion, illumination wide adaptation range.High definition absorbs the epigraph of collection plate 110.Optical lens 210 by controller 230 according into
As quality requirement automatically adjusts focal length and aperture.Optical lens 210 is used for focal imaging, and industrial camera 220 is then by picture signal
Data signal is converted into, while being configured to the regulation controller 230 of correct exposure and automated imaging.
Lens group 210 is zoom wide-angle optical lens, with the photography ability for adapting to very wide particle size range, can be obtained from 5
Micron is to 5000 microns of grain graininess scope, and focal length and the depth of field of such optical lens 210 adapt to sedimentation liquid collection plate 110
Yardstick demand.
Referring to Fig. 1 and Fig. 3, image on collection plate 110 through optical lens 210 on the CCD of industrial camera 220 into
Picture, and it is converted into data signal, output to control module 300.Control module 300 is in the bottom of cabinet 400.Industrial camera 220
Using CCD or CMOS principles, imaging clearly, pixel is preferably not less than 10,000,000.Camera image (numeral) signal is transmitted to image
Reason and output module 300, IMAQ is with digital module 200 according to illumination and image definition, and auto-focusing is automatic to expose
Light.
Regulation controller 230 is made up of micro machine, executing agency, is controlled, is sentenced according to image definition by industrial camera 220
Disconnected, feedback signal automatically adjusts focal length, the depth of field to controller is adjusted.
As shown in figure 1, sedimentation liquid collection plate 110 is placed on the flange of the upper end surrounding of box body 410, and pass through right angle section bar
130 are fixed, and camera 220 is fixed on the shooting of the bottom up of box body 410.Collection plate 110 is auxiliary simultaneously has cold light source 120 for low
The not enough situation of illumination under illumination conditions.
Image procossing is with output module 300 by industrial computer 310, digital image analysis software 320, data output component 330
Composition.Wherein, industrial computer 310 can purchase industrial computer and transform industrial computer 310 as.It is mainly used in the company with industrial camera 220
Connect, and receive the picture that industrial camera 220 is collected, while being used as the carrier of digital image analysis software, it is ensured that image procossing
Process is smoothed out.Industrial computer 310 is responsible for the intelligent operation of the present apparatus, and band is from memory and data output component 330.
Digital image analysis module 320, by obtaining the sedimentation liquid image on collection plate 110 in real time, and combines digitized map
As treatment technology is handled it, and then corresponding particle diameter, number and shape characteristic are obtained, while according to forward and backward two width number
The contrast of word image, obtains the incremental data (equivalent diameter of each specification, quantity) of sedimentation liquid spot, passes through experiment or demarcation side
The correlation K of tiling diameter and space diameter that method is obtained, thus it is speculated that the space diameter and quantity of each specification, development tiling diameter,
Space diameter, counting, particle diameter distribution, the calculating of coverage rate.According to the specification of measurement object, imaging regulatory demand, data processing
Functional requirement, output format demand customization image analysis software.
Data output component 330 is made up of data output fastener, WIFI transmitting fasteners.Wherein, data output fastener has
Cable data is exported and signal receiving function, is connected in a wired mode or wireless mode with host computer (desk-top or notebook computer)
Connect, support the high-speed transfer of data.There is WIFI transmitting fasteners wireless data to export and signal receiving function.
Digital image analysis module 320 includes control program, by measurement and analysis module, data processing and output mould
Block, image adjustment module composition, wherein, measure as follows with the analysis module course of work：
a)：Obtain image n+1 numerical signals；
b):Image n+1 is preserved；
c):3rd step：Image n+1 is handled and compared with image n；
d):4th step：The spot information of the newly-increased sedimentation liquid of the measurement ← identification of vector machine (SVM) pattern (diameter containing tiling, number
Amount)
e):5th step：Information processing, that is, record drop tiling diameter, quantity；It is empty according to tiling diameter conversion sedimentation drop
Between diameter；Tiling diameter, size droplet diameter classification；Sedimentation quality is calculated with sedimentation barkometer according to size droplet diameter；During according to shooting
Between interval with the areal calculation sedimentation liquid mass concentration of collection plate 101, number concentration, particle diameter distribution, tiling diameter coverage rate；And
f):6th step：Data record, preservation after processing.
By this analysis program, handled by width and preserve newly-increased data.Wherein：
Principle of classification is：di≯0.5mm、0.5mm≤di<1.0mm、1.0mm≤di<2.0mm、2.0mm≤di<3.0mm、
3.0mm≤di<5.0mm、di≮5.0mm。
The time of measuring interval of each image is adjustable, fixes tentatively as 10s~300s.
Further, the course of work of data processing and output module is as follows：
1):First step items preserve database
2):Export and require according to curve, export real-time curve；It is defeated with Excel according to Output of for ms requirement and beginning and ending time
Go out real time data
3):According to the average value beginning and ending time (1min, 5min....1h, 2h...1d, 2d....) of setting, calculate；
4):Required according to distribution table/figure output, output volume, the distribution of quantity differential and cumulative distribution table and figure；And
5):Export and require according to curve, export Mean curve；It is defeated with Excel according to Output of for ms requirement and beginning and ending time
Go out mean data.
All of above output is realized by digital image analysis module.
Pass through above description, it can be seen that when liquid is dropped on sedimentation liquid collection plate 110, be fixed on the bottom of box body 410
The picture of the IMAQ in portion and the meeting captured in real-time collection plate of camera 220 of digital module 200 is simultaneously sent to computer, according to figure
The quality of piece, the focal length and aperture of auxiliary cold light source 120 and camera lens to the surrounding of collection plate 110 are adjusted, and are ensureing figure
In the case that tablet quality has no problem, the picture of 320 pairs of collections of digital image analysis module is handled in real time, and passes through data
Output precision 330 exports the information such as corresponding particle diameter, number and pattern, so as to realize the purpose of the present invention.
Below also to scaling method further description：
1st, titer dripping is standby
Preparation principle：Using glass dropper, deionized water is sucked.Non- company is instilled on slide (light microscope is special)
Continue drop few drops.The diameter after drop tiling is measured with light microscope (with metering ruler), is averaged.With 0.1mg or
0.01mg precision electronic balance measurement drop mass, according to the rate of specific gravity under measurement temperature, using drop as spherical calculating, it is averaged
Diameter.Obtain the ratio or correlation of drop tiling diameter and spherical diameter.
Pass through the drop of the dropper formation different-diameter of different size.Form one group of ratio or correlation.
Slide use with sedimentation liquid collection plate identical material, make its surface characteristic consistent.
Demarcation prepares
Instrument, utensil prepare as follows：
Glass dropper：The glass dropper 5 of different pore size and wall thickness is customized, full scale mark height is 10cm, and mark is compiled
Number.A complete drop is oozed under natural gravity.Different size dropper formation size droplet diameter be about 0.5mm,
1.0mm、2.0mm、3.0mm、5.0mm。
Microscope：Ordinary optical microscope, band metering ruler, precision 0.01mm, assay approval, enlargement ratio × 5, ×
10。
Electronic balance：Maximum measurement quality ≯ 220g, measurement accuracy 0.1mg or 0.01mg.
Slide：Specification about 20mm × 40mm, material and surface flatness are identical with sedimentation liquid collection plate, marker number.
Deionized water.Quality is not less than two grades of use for laboratory water, the μ s/cm of leading indicator electrical conductivity ≯ 1.
Chimney rain or gypsum rain settling amount self-operated measuring unit.Carry out normal dimension according to the maintenance clause in operational procedure
Shield.
2nd, demarcating steps
The acquisition of correlation
1) correlation definition is with calculating
Circular drop diameter and the diameter ratio value that tiled on slide under nature.Equation below is shown in calculating：
In formula：K, correlation, dimensionless；
Circular drop diameter under d, nature, unit mm；
Tile diameter on D, slide, unit mm.
When slide surface is nature or is handled through hydrophilic coating, K ≯ 1.00.
Wherein, the measurement of parameter is as follows：
D measurement：
Prepare：5 droppers, 5 slides soak 2h with washing lotion.Taking-up is rinsed 3 times with running water, then rushed with deionized water
Wash 3 times.Dried in drying box standby.
Electronic balance is preheated according to operational procedure.Demarcated by code.Slide original quality is weighed respectively, point
M01, m02.......m05 (g) are not recorded as it.
Constant temperature indoor air temperature t (DEG C) is consulted, the density p (mg/ml) of water under the temperature is consulted.
All use instruments, vessel place more than 4h in thermostatic chamber.Room temperature between constant temperature room temperature and electronic balance is inclined
Difference ≯ ± 3 DEG C.
Step：A dropper is taken, deionized water is drawn to full scale.A drop is naturally oozed under gravity,
Fall on the slide of identical numbering.It is arranged in order and oozes 5 drops.With the electronics balance measurement slide quality, take secondary
The average value of weighing, is recorded as m1i, i=1,2,3,4,5.Calculated by following equation.
D measurement：
Slide is put into microscope microscope carrier, 5 tiling liquid-drop diameters is measured, averages, Di is recorded as, i=1,2,
3、4、5。
K calculating：
Ki, i=1,2,3,4,5 are 1. calculated respectively according to formula.
Note：Every kind of particle diameter is sequentially completed measurement, obtains K values.The measurement of 5 specifications should not be carried out simultaneously.
Scaling method：
To improve accuracy of measurement, it is necessary to believe according to the imaging digital of sedimentation drop sizes, collection figure, different light transmittances
Number intensity, carries out demarcation.And periodically carry out calibration test according to the relevant requirement of measurement instrument, it is ensured that accuracy of measurement.
A kind of scaling method based on gravimetric method has been worked out, drop mass, space diameter, tiling diameter are obtained by testing
Correlation, provide basis for accurate measurement.The solution characteristics of drop, collection plate 110 have fully been paid close attention in scaling method
Material feature, coordinates higher quality, yardstick measurement accuracy, accurate can reflect the settling characteristics of drop, and review with this
Its space characteristics.
Start digital gypsum rain auto testing instrument according to operational procedure.
On sedimentation liquid collection plate, according to [d measurement]-[step], 5 tiling particles are oozed on collection plate, are obtained
Particle sizing data Di`, di` is obtained according to the former calculating formula for being implanted into analysis software.
Di is 3. calculated according to formula.
di=Ki×Di`③
Di is compared with di`,
When measured value deviation ≯ 5%, then measuring system is qualified；
When more than franchise 5%, then the design factor in adjustment analysis software is needed.
In addition, referring to Fig. 6, the measurement apparatus can be additionally used in on-line measurement, the long-range acquisition number of progress is combined with host computer 500
According to.Number the playscripts with stage directions invention provide wet desulphurization chimney rain or gypsum rain settling amount self-operated measuring unit as collecting unit 1,2,
3 ... n device constitutes a chimney rain or gypsum rain measurement system, and channel wireless radio multi is transmitted to host computer 500 and (will be detailed below
Description), measured value is obtained in time, assess test result.So, by the several measurement apparatus, according to measurement appraisal procedure, according to
Certain rule is layouted, and constitutes measuring system.Common rule of layouting is：By origin of chimney, the lower wind direction of ambient wind, with press from both sides
It is being respectively 100m, 300m, 800m position away from origin in the sector region that 45 ° of angle, 2,3 is disposed respectively and is measured with 5
Device.10 measurement apparatus altogether.
Measured value is inputted host computer 500 by the measurement apparatus invented per the playscript with stage directions by WIFI3032, and host computer 500 is by industry
Computer is constituted, and realizes display, storage, analysis and report and the communication function of result.
Finally, it is noted that the above embodiments are merely illustrative of the technical solutions of the present invention and unrestricted.Although ginseng
The present invention is described in detail according to embodiment, it will be understood by those within the art that, to the technical side of the present invention
Case is modified or equivalent substitution, and without departure from the spirit and scope of technical solution of the present invention, it all should cover in the present invention
Right among.
Claims (6)
1. the self-operated measuring unit of a kind of chimney rain or gypsum rain settling amount, it is characterised in that it includes one and is used for gathering chimney
The sampling module of rain or gypsum rain sedimentation liquid, one are used for being acquired the image of sedimentation liquid the IMAQ of simultaneously digitized processing
The image procossing and output module that are handled and exported with digital module, to the sedimentation liquid image of the collection and it is used for
The cabinet of the sampling module, IMAQ and digital module and image procossing and output module is set；Described image processing
It is made up of with output module industrial computer, digital image analysis module and data output component, wherein, the digital image analysis
Module is made up of measurement with analysis module, data processing and output module, image adjustment module, the measurement and analysis module work
Make process as follows：
a)：Obtain image n+1 numerical signals；
b):Image n+1 is preserved；
c):3rd step：Image n+1 is handled and compared with image n；
d):4th step：The spot information of the newly-increased sedimentation liquid of measurement ← vector machine (SVM) pattern identification (diameter containing tiling, quantity)；
e):5th step：Information processing, that is, record drop tiling diameter, quantity；It is straight according to tiling diameter conversion sedimentation drop space
Footpath；Tiling diameter, size droplet diameter classification；Sedimentation quality is calculated with sedimentation barkometer according to size droplet diameter；According between camera time
Every with the areal calculation sedimentation liquid mass concentration of collection plate 101, number concentration, particle diameter distribution, tiling diameter coverage rate；And
f):6th step：Data record, preservation after processing.
2. the self-operated measuring unit of chimney rain as claimed in claim 1 or gypsum rain settling amount, it is characterised in that the sampling
Module is used for gathering the sedimentation liquid collection plate of the sedimentation liquid and described for aiding in comprising a top for being arranged on the cabinet
The secondary light source of the digital image acquisition of the digital module of top of the IMAQ with being arranged on the collection plate.
3. the self-operated measuring unit of chimney rain as claimed in claim 1 or gypsum rain settling amount, it is characterised in that described image
Collection is made up of with digital module Zoom optic lens, high resolution industrial camera and regulation controller, wherein, the light
Learn zoom lens and focal length and aperture, and focal imaging are automatically adjusted according to image quality by regulation controller, while the industry
Picture signal is converted into data signal by camera, and controls correctly to expose described focal imaging by the regulation controller
Light and automated imaging.
4. the self-operated measuring unit of chimney rain as claimed in claim 1 or gypsum rain settling amount, it is characterised in that the data
Processing is as follows with the output module course of work：
1):First step items preserve database；
2):Export and require according to curve, export real-time curve；According to Output of for ms requirement and beginning and ending time, export real with Excel
When data；
3):According to the average value beginning and ending time (1min, 5min....1h, 2h...1d, 2d....) of setting, calculate；
4):Required according to distribution table/figure output, output volume, the distribution of quantity differential and cumulative distribution table and figure；And
5):Export and require according to curve, export Mean curve；It is equal with Excel outputs according to Output of for ms requirement and beginning and ending time
Value Data.
5. a kind of scaling method of the self-operated measuring unit of chimney rain or gypsum rain settling amount, it is characterised in that the demarcation side
Method is as follows：
1):The dropper of certain outlet diameter prepares spherical droplets, freely falls on collection plate, is weighed according to gravimetric method, passes through ball
Shape calculates and measures space diameter di；
2):With drop tiling diameter Di on microscope tape measure collection plate；
3):Space diameter di is calculated except tiling diameter Di and is obtained correlation Ki；
4):4th step, the Ni is inputted the analysis module of the digital image analysis module；
5)：Different size dropper forms different d and D, calculates and obtains one group of K, the digital image analysis module is inputted respectively
Analysis module.
6)：Multiple demarcation：Same operation is carried out on the self-operated measuring unit of the chimney rain or gypsum rain settling amount, obtains instrument
Device measured value di`.Then di is compared with di`, measured value deviation answers ≯ 5%.
6. the scaling method of the self-operated measuring unit of chimney rain as claimed in claim 5 or gypsum rain settling amount, its feature exists
In the collection plate is in the top of box body, and the upper end surrounding of box body has a flange to be used as supporting the collection plate.
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| CN201710384589.3A CN107121713B (en) | 2017-05-26 | 2017-05-26 | Automatic measuring device for settlement of chimney rain or gypsum rain and calibration method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308251A (en) * | 2019-07-16 | 2019-10-08 | 唐山市曹妃甸供水有限责任公司 | A kind of algae rate of settling measurement device |
| CN117436283A (en) * | 2023-12-13 | 2024-01-23 | 青岛昊宇重工有限公司 | Computer aided design method, system and storage medium for chimney |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0434441Y2 (en) * | 1986-01-22 | 1992-08-17 | ||
| CN104020086A (en) * | 2014-06-12 | 2014-09-03 | 南京航空航天大学 | Rapid liquid mist characteristic measuring method based on digital image treatment technique |
| CN205485520U (en) * | 2016-01-22 | 2016-08-17 | 大唐环境产业集团股份有限公司 | Gypsum rain monitoring system |
-
2017
- 2017-05-26 CN CN201710384589.3A patent/CN107121713B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0434441Y2 (en) * | 1986-01-22 | 1992-08-17 | ||
| CN104020086A (en) * | 2014-06-12 | 2014-09-03 | 南京航空航天大学 | Rapid liquid mist characteristic measuring method based on digital image treatment technique |
| CN205485520U (en) * | 2016-01-22 | 2016-08-17 | 大唐环境产业集团股份有限公司 | Gypsum rain monitoring system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308251A (en) * | 2019-07-16 | 2019-10-08 | 唐山市曹妃甸供水有限责任公司 | A kind of algae rate of settling measurement device |
| CN117436283A (en) * | 2023-12-13 | 2024-01-23 | 青岛昊宇重工有限公司 | Computer aided design method, system and storage medium for chimney |
| CN117436283B (en) * | 2023-12-13 | 2024-03-26 | 青岛昊宇重工有限公司 | Computer aided design method, system and storage medium for chimney |
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