CN109307646A - The decoupling method and device of solid holdup fluctuating signal - Google Patents
The decoupling method and device of solid holdup fluctuating signal Download PDFInfo
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Abstract
The present invention provides the decoupling method and device of a kind of solid holdup fluctuating signal, comprising: determines the bubble phase threshold value and agglomerate phase threshold value of solid holdup fluctuating signal to be decoupled, the solid holdup fluctuating signal to be decoupled is obtained from dense gas-solid flow by the first probe；According to the bubble phase threshold value, the available bubble signals in the solid holdup fluctuating signal to be decoupled are extracted；According to the agglomerate phase threshold value, the available agglomerate signal in the solid holdup fluctuating signal to be decoupled is extracted；According to the bubble signals and the agglomerate signal, solid holdup fluctuating signal is decoupled.The decoupling method of solid holdup fluctuating signal provided by the invention, improves decoupling accuracy.
Description
Technical field
The present invention relates to fields of measurement more particularly to a kind of decoupling methods and device of solid holdup fluctuating signal.
Background technique
Dense gas-solid fluidized bed intermediary's scale fluidal texture is measured using optical fiber probe method be a kind of maturation survey
Amount method has the advantages that accuracy is high, result is reliable, interference is small, has been widely used in fast bed and riser
The measurement of the dynamic evolution of grain agglomerate, however, measurement obtains due to the nonlinear characteristic of dense gas-solid flow and how basin-wide
Solid holdup fluctuating signal in include a large amount of Jie's scale flowing informations, to being difficult to be decoupled out before.
The decoupling method of existing solid holdup fluctuating signal is mainly by being divided into low-frequency range for solid holdup fluctuating signal
Approximate signal and high-frequency range detail signal, and the signal after division is decoupled using wavelet analysis method, this side
Method is substantially artificially to provide that some frequency range represents entire solid holdup fluctuating signal, and decoupling accuracy rate is not high.
Summary of the invention
The present invention provides the decoupling method and device of solid holdup fluctuating signal in a kind of dense gas-solid flow, quasi- to improve decoupling
True rate.
The first aspect of the invention provides a kind of decoupling method of solid holdup fluctuating signal, comprising:
Determine the bubble phase threshold value and agglomerate phase threshold value of solid holdup fluctuating signal to be decoupled, the solid holdup to be decoupled
Fluctuating signal is obtained from dense gas-solid flow by the first probe；
According to the bubble phase threshold value, the available bubble signals in the solid holdup fluctuating signal to be decoupled are extracted；
According to the agglomerate phase threshold value, the available agglomerate signal in the solid holdup fluctuating signal to be decoupled is extracted；
According to described with bubble signals and described the solid holdup fluctuating signal to be decoupled can be determined with agglomerate signal
The distribution of bubble solid holdup, the distribution of the bubble frequency of occurrences, bubble velocity, bubble average speed, bubble chord length distribution, bubble it is average
Chord length, agglomerate solid holdup distribution, agglomerate be averaged solid holdup, the agglomerate frequency of occurrences, agglomerate VELOCITY DISTRIBUTION, agglomerate average speed, gather
Group's chord length distribution, agglomerate mean chord and the distribution of agglomerate diameter and agglomerate average diameter.
Optionally, the bubble phase threshold value and agglomerate phase threshold value of determination solid holdup fluctuating signal to be decoupled, comprising:
According to the single order in the solid holdup fluctuating signal of the decoupling to Fourth square, the solid holdup of the decoupling is determined
Bubble volume fraction, bubble phase average solid holdup and the close phase average solid holdup of fluctuating signal；
According to the bubble phase fraction, the bubble phase average solid holdup and the close phase average solid holdup, determine described in
The bubble phase threshold value of solid holdup fluctuating signal to be decoupled；
According to the solid holdup under the dense gas-solid flow starting fluidized state, the agglomerate phase threshold value is determined.
Optionally, described according to the bubble phase threshold value, it extracts available in the solid holdup fluctuating signal to be decoupled
Bubble signals, comprising:
According to the bubble phase threshold value, the is extracted from the solid holdup fluctuating signal to be decoupled that first probe obtains
One bubble signals extract the second bubble signals from the reference solid holdup fluctuating signal that the second probe obtains；The first bubble
Signal is the bubble paddy in the solid holdup fluctuating signal to be decoupled, and second bubble signals are described with reference to solid holdup arteries and veins
Bubble paddy in dynamic signal；
The first bubble signal and second bubble signals are matched, determine the solid holdup arteries and veins to be decoupled
Available bubble signals in dynamic signal.
Optionally, described according to the agglomerate phase threshold value, it extracts available in the solid holdup fluctuating signal to be decoupled
Agglomerate signal, comprising:
According to the agglomerate phase threshold value, the is extracted from the solid holdup fluctuating signal to be decoupled that first probe obtains
One agglomerate signal extracts the second agglomerate signal from the reference solid holdup fluctuating signal that the second probe obtains；First agglomerate
Signal is the particle agglomeration peak in the solid holdup fluctuating signal to be decoupled, and the second agglomerate signal is that the reference contains admittedly
Particle agglomeration peak in rate fluctuating signal；
The first agglomerate signal and the second agglomerate signal are matched, determine the solid holdup arteries and veins to be decoupled
Available agglomerate signal in dynamic signal.
Optionally, it after the bubble phase threshold value and agglomerate phase threshold value for determining solid holdup fluctuating signal to be decoupled, also wraps
It includes:
According to the bubble phase threshold value, determine that the bubble phase phase fraction of the solid holdup fluctuating signal, bubble phase average are solid
Containing rate, bubble phase average solid holdup standard deviation；
According to the agglomerate phase threshold value, the close phase phase fraction of the solid holdup fluctuating signal, agglomerate phase phase fraction, close is determined
Phase average solid holdup and close phase average solid holdup standard deviation.
The second aspect of the invention provides a kind of decoupling device of solid holdup fluctuating signal, comprising:
Threshold determination module, for determining the bubble phase threshold value and agglomerate phase threshold value of solid holdup fluctuating signal to be decoupled,
The solid holdup fluctuating signal to be decoupled is obtained from dense gas-solid flow by the first probe；
Bubble signals module, for extracting in the solid holdup fluctuating signal to be decoupled according to the bubble phase threshold value
Available bubble signals；
Agglomerate signaling module, for extracting in the solid holdup fluctuating signal to be decoupled according to the agglomerate phase threshold value
Available agglomerate signal；
First computing module, for according to can with bubble signals and it is described can with agglomerate signal, determine described in wait solve
The distribution of bubble solid holdup, the distribution of the bubble frequency of occurrences, bubble velocity, bubble average speed, gas of the solid holdup fluctuating signal of coupling
Bubble chord length distribution, bubble mean chord, agglomerate solid holdup are distributed, agglomerate is averaged solid holdup, the agglomerate frequency of occurrences, agglomerate speed point
Cloth, agglomerate average speed, agglomerate chord length distribution, agglomerate mean chord and the distribution of agglomerate diameter and agglomerate average diameter.
Optionally, the threshold determination module, comprising:
Parameter determination unit, for the single order in the solid holdup fluctuating signal according to the decoupling to Fourth square, really
Bubble volume fraction, bubble phase average solid holdup and the close phase average solid holdup of the solid holdup fluctuating signal of the fixed decoupling；
Bubble phase threshold value determination unit, for according to the bubble phase phase fraction, the bubble phase average solid holdup and institute
Close phase average solid holdup is stated, determines the bubble phase threshold value of the solid holdup fluctuating signal to be decoupled；
Agglomerate phase threshold value determination unit, for determining according to the solid holdup under the dense gas-solid flow starting fluidized state
The agglomerate phase threshold value.
Optionally, the bubble signals module, comprising:
With reference to bubble signals determination unit, for according to the bubble phase threshold value, being obtained from first probe wait solve
First bubble signal is extracted in the solid holdup fluctuating signal of coupling, is extracted from the reference solid holdup fluctuating signal that the second probe obtains
Second bubble signals；Bubble paddy in first bubble signal solid holdup fluctuating signal to be decoupled for described in, described second
Bubble signals are the bubble paddy with reference in solid holdup fluctuating signal；
First matching unit determines institute for matching the first bubble signal and second bubble signals
State the available bubble signals in solid holdup fluctuating signal to be decoupled.
Optionally, the agglomerate signaling module, comprising:
With reference to agglomerate signal determination unit, for according to the agglomerate phase threshold value, being obtained from first probe wait solve
The first agglomerate signal is extracted in the solid holdup fluctuating signal of coupling, is extracted from the reference solid holdup fluctuating signal that the second probe obtains
Second agglomerate signal；The first agglomerate signal is the particle agglomeration peak in the solid holdup fluctuating signal to be decoupled, described
Second agglomerate signal is the particle agglomeration peak with reference in solid holdup fluctuating signal；
Second matching unit determines institute for matching the first agglomerate signal and the second agglomerate signal
State the available agglomerate signal in solid holdup fluctuating signal to be decoupled.
Optionally, further includes:
Second computing unit, for determining the bubble phase phase of the solid holdup fluctuating signal according to the bubble phase threshold value
Divide rate, bubble phase average solid holdup, bubble phase average solid holdup standard deviation；
Third computing unit, for determining the close phase phase point of the solid holdup fluctuating signal according to the agglomerate phase threshold value
Rate, agglomerate phase phase fraction, close phase average solid holdup and close phase average solid holdup standard deviation.
The third aspect of the present invention provides a kind of electronic equipment, comprising:
Memory and processor；
The memory, for storing the executable instruction of the processor；
The processor is configured to be related to via the execution executable instruction to execute first aspect and its optinal plan
Method.
The fourth aspect of the present invention provides a kind of storage medium, is stored thereon with computer program, and the program is processed
The method that first aspect and its optinal plan are related to is realized when device executes.
The decoupling method and device of solid holdup fluctuating signal provided by the invention pass through bubble phase threshold value and agglomerate phase threshold value
Extracting from solid holdup fluctuating signal to be decoupled can be decoupled with bubble signals and with agglomerate signal, be improved solid
The decoupling accuracy rate of the fluctuating signal containing rate.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow diagram of the decoupling method of solid holdup fluctuating signal provided in an embodiment of the present invention；
Fig. 2 is the flow diagram of the decoupling method of another solid holdup fluctuating signal provided in an embodiment of the present invention；
Fig. 3 is a kind of flow diagram of step S21 provided in an embodiment of the present invention；
Fig. 4 is a kind of flow diagram of step S22 provided in an embodiment of the present invention；
Fig. 5 is a kind of flow diagram of step S23 provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of the decoupling device of solid holdup fluctuating signal provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the decoupling device of another solid holdup fluctuating signal provided in an embodiment of the present invention；
Fig. 8 is a kind of structural schematic diagram of threshold determination module provided in an embodiment of the present invention；
Fig. 9 is a kind of structural schematic diagram of bubble signals module provided in an embodiment of the present invention；
Figure 10 is a kind of structural schematic diagram of agglomerate signaling module provided in an embodiment of the present invention.
Through the above attached drawings, it has been shown that the specific embodiment of the present invention will be hereinafter described in more detail.These attached drawings
It is not intended to limit the scope of the inventive concept in any manner with verbal description, but is by referring to specific embodiments
Those skilled in the art illustrate idea of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Description and claims of this specification and term " first " in above-mentioned attached drawing, " second " etc. are for distinguishing
Similar object, without being used to describe a particular order or precedence order.It should be understood that the data used in this way are in appropriate feelings
It can be interchanged under condition, so that the embodiment of the present invention described herein can be other than those of illustrating or describing herein
Sequence implement.
It should be appreciated that in various embodiments of the present invention, the size of the serial number of each process is not meant to execute sequence
It is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Journey constitutes any restriction.
It should be appreciated that in the present invention, " comprising " and " having " and their any deformation, it is intended that covering is not arranged
His includes, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to clearly
Those of list step or unit, but may include be not clearly listed or for these process, methods, product or equipment
Intrinsic other step or units.
It should be appreciated that in the present invention, " B corresponding with A ", " A and B are corresponding " or " B and A are corresponding " indicate B
It is associated with A, B can be determined according to A.Determine that B is not meant to determine B only according to A according to A, can also according to A and/or
Other information determines B.
Depending on context, as used in this " if " can be construed to " ... when " or " when ... " or
" in response to determination " or " in response to detection ".
Fig. 1 is a kind of flow diagram of the decoupling method of solid holdup fluctuating signal provided in an embodiment of the present invention, reference
Shown in Fig. 1, the decoupling method of solid holdup fluctuating signal provided in an embodiment of the present invention is applied to the decoupling of solid holdup fluctuating signal
Square law device mainly includes step S11 to step S14, specific as follows:
S11, the bubble phase threshold value and agglomerate phase threshold value for determining solid holdup fluctuating signal to be decoupled, described to be decoupled consolidates
Fluctuating signal containing rate is obtained from dense gas-solid flow by the first probe.
During specific implementation, the solid holdup fluctuating signal of decoupling is obtained first, specifically, obtaining in dense gas-solid flow
Solid holdup fluctuating signal, generally use two probes and be acquired respectively, the signal that one of probe collection arrives be used as to
Decoupling signal, the signal that another probe collection arrives is as reference signal.
Determine that bubble phase threshold value can count the one of solid holdup fluctuating signal to Fourth square, to calculate first
Then corresponding bubble phase fraction, bubble phase solid holdup and close phase solid holdup out use ergodic algorithm, determine suitable bubble
Phase threshold value.Agglomerate phase threshold value can originate the solid holdup under fluidized state for dense gas-solid flow.
S12, according to the bubble phase threshold value, extract the available bubble letter in the solid holdup fluctuating signal to be decoupled
Number.
During specific implementation, the signal for being higher than bubble phase threshold value to solid holdup first is rejected, secondly, from wait solve
The bubble paddy that same bubble generates is identified respectively in coupling solid holdup fluctuating signal and reference solid holdup fluctuating signal, and will be owned
The set conduct of qualified bubble paddy can use bubble signals.
S13, according to the agglomerate phase threshold value, extract the available agglomerate letter in the solid holdup fluctuating signal to be decoupled
Number.
During specific implementation, the signal first to solid holdup lower than agglomerate phase threshold value is rejected, secondly, from wait solve
The particle agglomeration peak that same agglomerate generates is identified respectively in coupling solid holdup fluctuating signal and reference solid holdup fluctuating signal, and will
The set conduct at all qualified particle agglomeration peaks can use agglomerate signal.
S14, with bubble signals and described the solid holdup pulsation to be decoupled can be determined with agglomerate signal according to
The distribution of bubble solid holdup, the distribution of the bubble frequency of occurrences, bubble velocity, bubble average speed, bubble chord length distribution, bubble of signal
The average speed of solid holdup, the agglomerate frequency of occurrences, agglomerate VELOCITY DISTRIBUTION, agglomerate that mean chord, agglomerate solid holdup are distributed, agglomerate is averaged
Degree, the distribution of agglomerate chord length distribution, agglomerate mean chord, agglomerate diameter and agglomerate average diameter.
In practical applications, according to formula (1)-(9), can calculate solid holdup fluctuating signal the bubble frequency of occurrences,
Be averaged solid holdup, the agglomerate frequency of occurrences, agglomerate average speed and agglomerate of bubble average speed, bubble mean chord, agglomerate is average
Chord length.Specifically, formula (1)-(9) are as follows:
Wherein,For the bubble frequency of occurrences, nbFor bubble number, nagFor agglomerate number, T is the sampling time,For gas
Steep average speed, ub,xIt is distributed for bubble velocity,For bubble mean chord, lb,xFor bubble chord length distribution,It is average for agglomerate
Solid holdup, FagFor the agglomerate frequency of occurrences,For agglomerate average speed, uag,x’For agglomerate VELOCITY DISTRIBUTION,It is average for agglomerate
Chord length, lag,x’For agglomerate chord length distribution, d is the distance between two fibre-optical probes, Tx,1For x-th bubble in first bubble peak
Initial time, Tx,2For the end time of x-th of bubble in first bubble peak, Ty,1For of x-th of bubble in the second air peak
Begin the time, Ty,2For the end time of x-th of bubble in the second air peak, τb,xFor the duration of x-th of bubble, Tx,1' it is the
The initial time of x' agglomerate, T in one agglomerate peakx,2The end time of ' for xth in the first agglomerate peak ' a agglomerate, Ty,1' it is the
The initial time of xth in two agglomerate peaks ' a agglomerate, Ty,2The end time of ' for xth in the second agglomerate peak ' a agglomerate, τag,x'For
The duration of xth ' a agglomerate, f (εsb) it is bubble solid holdup distribution function, f (εsd) it is agglomerate solid holdup distribution function.
Moreover, it is assumed that agglomerate is spherical shape, according to formula (10), agglomerate average diameter is calculated:
Wherein,For agglomerate average diameter, dag,x’For xth ' diameter of a agglomerate, PcFor agglomerate distribution of SMD,
PpFor agglomerate chord length probability density distribution.
The decoupling method of solid holdup fluctuating signal provided in this embodiment, by bubble phase threshold value and agglomerate phase threshold value to
Bubble signals and agglomerate signal are extracted in the solid holdup fluctuating signal of decoupling to be decoupled, and improve solid holdup fluctuating signal
Decoupling accuracy rate.
Fig. 2 is the flow diagram of the decoupling method of another solid holdup fluctuating signal provided in an embodiment of the present invention, ginseng
It examines shown in Fig. 2, the decoupling method of the solid holdup fluctuating signal includes: S21-S26, specific as follows:
S21: the bubble phase threshold value and agglomerate phase threshold value of solid holdup fluctuating signal to be decoupled are determined, described to be decoupled consolidates
Fluctuating signal containing rate is obtained from dense gas-solid flow by the first probe.
S22: according to the bubble phase threshold value, the available bubble letter in the solid holdup fluctuating signal to be decoupled is extracted
Number.
S23: according to the agglomerate phase threshold value, the available agglomerate letter in the solid holdup fluctuating signal to be decoupled is extracted
Number.
S24: with bubble signals and described the solid holdup pulsation to be decoupled can be determined with agglomerate signal according to described
The distribution of bubble solid holdup, the distribution of the bubble frequency of occurrences, bubble velocity, bubble average speed, bubble chord length distribution, bubble of signal
The average speed of solid holdup, the agglomerate frequency of occurrences, agglomerate VELOCITY DISTRIBUTION, agglomerate that mean chord, agglomerate solid holdup are distributed, agglomerate is averaged
Degree, agglomerate chord length distribution, agglomerate mean chord and the distribution of agglomerate diameter and agglomerate average diameter.
Step S21 can refer to the technical term of step S24, technical effect, technical characteristic and optional embodiment
Step S11 to S14 shown in FIG. 1 understands, for duplicate content, is not repeated herein.
S25, according to the bubble phase threshold value, determine that bubble phase phase fraction, the bubble of the solid holdup fluctuating signal are equal
Equal solid holdup, bubble phase average solid holdup standard deviation.
During specific implementation, according to bubble phase threshold value, solid holdup pulsation letter can be calculated according to formula (11)-(13)
Number bubble phase phase fraction, bubble phase average solid holdup, bubble phase average solid holdup standard deviation.Specifically, formula (11)-(13)
Are as follows:
Wherein, fdFor bubble phase phase fraction,For bubble phase average solid holdup, σsbFor bubble phase average solid holdup standard
Difference, εsbConsolidate rate, ε for bubble phasesdFor close phase solid holdup,For average solid holdup.
S26, according to the agglomerate phase threshold value, determine close phase phase fraction, the agglomerate phase phase point of the solid holdup fluctuating signal
Rate, close phase average solid holdup and close phase average solid holdup standard deviation.
During specific implementation, according to agglomerate phase threshold value, solid holdup pulsation letter can be calculated according to formula (14)-(17)
Number Emulsion Phase phase fraction, agglomerate phase phase fraction, close phase average solid holdup, close phase average solid holdup standard deviation.Specifically, public
Formula (14)-(17) are as follows:
Wherein, feFor Emulsion Phase phase fraction, fagMutually divide rate in opposite directions for agglomerate,For close phase average solid holdup, σsdFor close phase
Average solid holdup standard deviation, nagFor εs>εs,mfData point number；neFor εthreshold<εs<εs,mfData point number.
The decoupling method of solid holdup fluctuating signal provided in this embodiment, by bubble phase threshold value and agglomerate phase threshold value to
Bubble signals and agglomerate signal are extracted in the solid holdup fluctuating signal of decoupling to be decoupled, and improve solid holdup fluctuating signal
Decoupling accuracy rate.
Fig. 3 is a kind of flow diagram of step S21 provided in an embodiment of the present invention.
It please refers to shown in Fig. 3, on the basis of any embodiment, step S21 mainly includes S211 to S213, specifically such as
Under:
S211, according to the single order in the solid holdup fluctuating signal of the decoupling to Fourth square, determine the decoupling
Bubble volume fraction, bubble phase average solid holdup and the close phase average solid holdup of solid holdup fluctuating signal.
During specific implementation, single order is counted to Fourth square, specifically from solid holdup fluctuating signal to be decoupled
, statistical moment includes: average solid holdup, standard deviation, degree of skewness and kurtosis.Secondly, being determined solid according to formula (18)-(21)
Consolidate rate and close phase solid holdup containing bubble phase fraction, the bubble phase in fluctuating signal.Specifically, formula (18)-(21) are as follows:
Wherein,For average solid holdup, σ is standard deviation, and S is degree of skewness, and K is kurtosis, fbFor bubble phase fraction, εsbFor
Bubble phase solid holdup, εsdFor close phase solid holdup.
S212, according to the bubble phase fraction, the bubble phase average solid holdup and the close phase average solid holdup, determine
The bubble phase threshold value of the solid holdup fluctuating signal to be decoupled.
During specific implementation, it is assumed that a bubble phase threshold value extracts institute in solid holdup fluctuating signal to be decoupled
There is the signal less than the bubble phase threshold value assumed as bubble signals, and calculates the average value of bubble signals according to bubble signals
ε′sb, the average value ε ' of the outer residual signal of bubble removing signalsd, and bubble signals time of occurrence and solid holdup to be decoupled are pulsed
The ratio f of signal total timeb' as hypothesis bubble phase phase fraction.
Further, when above-mentioned data meet formula (19), then the bubble phase threshold value that will assume is solid wait decouple as being somebody's turn to do
The bubble phase threshold value of the fluctuating signal containing rate.If the average value for the bubble signals that the bubble phase threshold calculations assumed go out, bubble removing letter
The average value and hypothesis bubble phase phase fraction of extra residual signal, are unsatisfactory for formula (18), then assume again that an other gas
Phase threshold value is steeped, until the average value and hypothesis bubble of the outer residual signal of the average value of calculated bubble signals, bubble removing signal
Until phase phase fraction meets formula (18).Specifically, formula (22) are as follows:
Wherein, εsbConsolidate rate, ε ' for bubble phasesbFor the average value of bubble signals, εsdFor close phase solid holdup, ε 'sdFor bubble removing
The average value of the outer residual signal of signal, fbFor bubble phase fraction, fb' to assume bubble phase phase fraction, a, b, c can be according to specific
Dense gas-solid flow setting, usual a, b, c are usually more than 0.01.
S213, the solid holdup under fluidized state is originated according to the dense gas-solid flow, determines the agglomerate phase threshold value.
Specifically, dense gas-solid flow can be originated the solid holdup under fluidized state is set as agglomerate phase threshold value.
Fig. 4 is a kind of flow diagram of step S22 provided in an embodiment of the present invention.
It please refers to shown in Fig. 4, on the basis of any embodiment, step S22 mainly includes S221 to S222, specifically such as
Under:
S221, according to the bubble phase threshold value, from the solid holdup fluctuating signal to be decoupled that first probe obtains
First bubble signal is extracted, extracts the second bubble signals from the reference solid holdup fluctuating signal that the second probe obtains；Described
One bubble signals are the bubble paddy in the solid holdup fluctuating signal to be decoupled, and second bubble signals are described with reference to solid
Bubble paddy in fluctuating signal containing rate.
Wherein, first bubble signal and the second bubble signals may include multiple bubble paddy.
In practical applications, first bubble signal can be found in solid holdup fluctuating signal to be decoupled along time shaft.
Specifically, using first in solid holdup fluctuating signal the to be decoupled data point less than bubble phase threshold value as starting point A, along the time
Axis direction is found backward from starting point, finds first data that bubble phase threshold value is all larger than equal to threshold value and subsequent continuous N number of point
Terminal B of the point as air peak, wherein N can be specifically arranged according to the actual situation, and usually not less than 20.Then, it is opened from B point
Begin to find next air peak until finding out air peak all in solid holdup fluctuating signal to be decoupled, and records all first
Serial number x, the time started T of air peakx1With end time Tx2.The extraction process of bubble paddy and air peak just as.Likewise, pressing
According to above-mentioned method, find with reference to the second bubble signals referred in solid holdup fluctuating signal, and record all second air peaks
Serial number y, beginning and ending time Ty1And Ty2。
S222, the first bubble signal and second bubble signals are matched, it is to be decoupled described in determination to consolidate
Available bubble signals in fluctuating signal containing rate.
During specific implementation, compare the first bubble signal obtained, bubble paddy in the second bubble signals it is similar
Degree is included in available bubble signals, specifically, first bubble peak and the second gas if similarity degree is not less than setting value
Steep the similarity formula (23) at peak are as follows:
Wherein, ρxyFor related coefficient, x is first bubble peak serial number, and y is the second air peak serial number, specifically, ρxyIt can be with
It is configured according to the actual situation, typically not greater than 0.7.
Fig. 5 is a kind of flow diagram of step S23 provided in an embodiment of the present invention.
It please refers to shown in Fig. 5, on the basis of any embodiment, step S23 mainly includes S231 to S232, specifically such as
Under:
S231, according to the agglomerate phase threshold value, from the solid holdup fluctuating signal to be decoupled that first probe obtains
The first agglomerate signal is extracted, extracts the second agglomerate signal from the reference solid holdup fluctuating signal that the second probe obtains；Described
One agglomerate signal is the particle agglomeration peak in the solid holdup fluctuating signal to be decoupled, and the second agglomerate signal is the ginseng
Examine the particle agglomeration peak in solid holdup fluctuating signal；
In practical applications, the first agglomerate signal can be found in solid holdup fluctuating signal to be decoupled along time shaft.
Specifically, the data point for being greater than agglomerate phase threshold value for first in solid holdup fluctuating signal to be decoupled is as starting point A ', along when
Between axis direction found backward from starting point A ', find first and be equal to agglomerate phase threshold value and a point of subsequent continuous N ' and be all larger than agglomerate phase
Terminal B ' of the data point of threshold value as particle agglomeration peak, wherein N ' is not less than 20.Then, it is begun look for from B ' next
Particle agglomeration is met until finding out particle agglomeration peak all in solid holdup fluctuating signal to be decoupled, and records all first particles
Serial number x ', the time started T ' of agglomeratex1With end time T 'x2.The extracting method at particle agglomeration peak and the extraction at particle agglomeration peak
Method is identical.Likewise, find according to above-mentioned method with reference to the second agglomerate signal referred in solid holdup fluctuating signal, and
Record serial number y ', the beginning and ending time T ' of all second agglomerate signalsy1With T 'y2。
S232, the first agglomerate signal and the second agglomerate signal are matched, it is to be decoupled described in determination to consolidate
Available agglomerate signal in fluctuating signal containing rate.
During specific implementation, compare the similarity degree of the first agglomerate signal and the second agglomerate signal that obtain, if the
The similarity degree of one agglomerate signal and the second agglomerate signal is not less than setting value, then as available agglomerate signal, specifically,
The similarity formula (24) of first particle agglomeration and the second particle agglomeration are as follows:
Wherein, ρ 'xyFor related coefficient, x ' is first bubble peak serial number, and y ' is the second air peak serial number, specifically, ρ 'xy
It can be configured according to the actual situation, typically not greater than 0.7.
The decoupling method of solid holdup fluctuating signal in dense gas-solid flow provided in this embodiment by bubble phase threshold value and gathers
Group's phase threshold value extracts bubble signals and agglomerate signal from solid holdup fluctuating signal to be decoupled to be decoupled, and improves solid
The decoupling accuracy rate of the fluctuating signal containing rate.
Fig. 6 is a kind of structural schematic diagram of the decoupling device of solid holdup fluctuating signal provided in an embodiment of the present invention.
It please refers to shown in Fig. 6, the decoupling device 30 of the solid holdup fluctuating signal, comprising:
Threshold determination module 31, for determining the bubble phase threshold value and agglomerate phase threshold of solid holdup fluctuating signal to be decoupled
Value, the solid holdup fluctuating signal to be decoupled are obtained from dense gas-solid flow by the first probe；
Bubble signals module 32, for extracting the solid holdup fluctuating signal to be decoupled according to the bubble phase threshold value
In available bubble signals；
Agglomerate signaling module 33, for extracting the solid holdup fluctuating signal to be decoupled according to the agglomerate phase threshold value
In available agglomerate signal；
First computing module 34, for according to can with bubble signals and it is described can with agglomerate signal, determine described in
The bubble solid holdup distribution of the solid holdup fluctuating signal of decoupling, the distribution of the bubble frequency of occurrences, bubble velocity, bubble average speed,
Bubble chord length distribution, bubble mean chord, agglomerate solid holdup are distributed, agglomerate is averaged solid holdup, the agglomerate frequency of occurrences, agglomerate speed
Distribution, agglomerate average speed, agglomerate chord length distribution, agglomerate mean chord and the distribution of agglomerate diameter and agglomerate average diameter.
The decoupling device of solid holdup fluctuating signal provided in this embodiment, by bubble phase threshold value and agglomerate phase threshold value to
Bubble signals and agglomerate signal are extracted in the solid holdup fluctuating signal of decoupling to be decoupled, and improve solid holdup fluctuating signal
Decoupling accuracy rate.
Fig. 7 is the structural schematic diagram of the decoupling device of another solid holdup fluctuating signal provided in an embodiment of the present invention.
It please refers to shown in Fig. 7, the decoupling device of the solid holdup fluctuating signal, further includes:
Second computing unit 35, for determining the bubble phase of the solid holdup fluctuating signal according to the bubble phase threshold value
Phase fraction, bubble phase average solid holdup, bubble phase average solid holdup standard deviation；
Third computing unit 36, for determining the close phase phase of the solid holdup fluctuating signal according to the agglomerate phase threshold value
Divide rate, agglomerate phase phase fraction, close phase average solid holdup and close phase average solid holdup standard deviation.
Fig. 8 is a kind of structural schematic diagram of threshold determination module provided in an embodiment of the present invention.
It please refers to shown in Fig. 8, the threshold determination module 31, comprising:
Parameter determination unit 311, for the single order in the solid holdup fluctuating signal according to the decoupling to Fourth square,
Determine that the bubble volume fraction, bubble phase average solid holdup and close phase average of the solid holdup fluctuating signal of the decoupling contain admittedly
Rate；
Bubble phase threshold value determination unit 312, for according to the bubble phase fraction, the bubble phase average solid holdup and institute
Close phase average solid holdup is stated, determines the bubble phase threshold value of the solid holdup fluctuating signal to be decoupled；
Agglomerate phase threshold value determination unit 313, for originating the solid holdup under fluidized state according to the dense gas-solid flow, really
The fixed agglomerate phase threshold value.
Fig. 9 is a kind of structural schematic diagram of bubble signals module provided in an embodiment of the present invention.
It please refers to shown in Fig. 9, the bubble signals module 32, comprising:
With reference to bubble signals determination unit 321, for according to the bubble phase threshold value, obtained from first probe to
First bubble signal is extracted in the solid holdup fluctuating signal of decoupling, is mentioned from the reference solid holdup fluctuating signal that the second probe obtains
Take the second bubble signals；The first bubble signal is the bubble paddy in the solid holdup fluctuating signal to be decoupled, described the
Two bubble signals are the bubble paddy with reference in solid holdup fluctuating signal；
First matching unit 322 is determined for matching the first bubble signal and second bubble signals
Available bubble signals in the solid holdup fluctuating signal to be decoupled.
Figure 10 is a kind of structural schematic diagram of agglomerate signaling module provided in an embodiment of the present invention.
It please refers to shown in Figure 10, the agglomerate signaling module 33, comprising:
With reference to agglomerate signal determination unit 331, for according to the agglomerate phase threshold value, obtained from first probe to
The first agglomerate signal is extracted in the solid holdup fluctuating signal of decoupling, is mentioned from the reference solid holdup fluctuating signal that the second probe obtains
Take the second agglomerate signal；The first agglomerate signal is the particle agglomeration peak in the solid holdup fluctuating signal to be decoupled, institute
Stating the second agglomerate signal is the particle agglomeration peak with reference in solid holdup fluctuating signal；
Second matching unit 332 is determined for matching the first agglomerate signal and the second agglomerate signal
Available agglomerate signal in the solid holdup fluctuating signal to be decoupled.
The decoupling device of solid holdup fluctuating signal in dense gas-solid flow provided in this embodiment by bubble phase threshold value and gathers
Group's phase threshold value extracts bubble signals and agglomerate signal from solid holdup fluctuating signal to be decoupled to be decoupled, and improves solid
The decoupling accuracy rate of the fluctuating signal containing rate.
Also offer a kind of electronic equipment of the invention, comprising: memory and processor；
The memory, for storing the executable instruction of the processor；
The processor is configured to execute the pulsation letter of solid holdup described in Fig. 1-Fig. 5 via the executable instruction is executed
Number decoupling method.
Wherein, readable storage medium storing program for executing can be computer storage medium, be also possible to communication media.Communication media includes just
In from a place to any medium of another place transmission computer program.Computer storage medium can be general or special
Any usable medium enough accessed with computer capacity.For example, readable storage medium storing program for executing is coupled to processor, to enable a processor to
Information is read from the readable storage medium storing program for executing, and information can be written to the readable storage medium storing program for executing.Certainly, readable storage medium storing program for executing can also be with
It is the component part of processor.Processor and readable storage medium storing program for executing can be located at specific integrated circuit (Application
Specific Integrated Circuits, referred to as: ASIC) in.In addition, the ASIC can be located in user equipment.Certainly,
Processor and readable storage medium storing program for executing can also be used as discrete assembly and be present in communication equipment.
The present invention also provides a kind of storage mediums, are stored thereon with computer program, real when which is executed by processor
The decoupling method of solid holdup fluctuating signal described in existing Fig. 1-Fig. 5.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (12)
1. a kind of decoupling method of solid holdup fluctuating signal characterized by comprising
Determine the bubble phase threshold value and agglomerate phase threshold value of solid holdup fluctuating signal to be decoupled, the solid holdup pulsation to be decoupled
Signal is obtained from dense gas-solid flow by the first probe；
According to the bubble phase threshold value, the available bubble signals in the solid holdup fluctuating signal to be decoupled are extracted；
According to the agglomerate phase threshold value, the available agglomerate signal in the solid holdup fluctuating signal to be decoupled is extracted；
According to described with bubble signals and described the gas of the solid holdup fluctuating signal to be decoupled can be determined with agglomerate signal
Steep solid holdup distribution, the distribution of the bubble frequency of occurrences, bubble velocity, bubble average speed, bubble chord length distribution, bubble mean chord
Long, agglomerate solid holdup distribution, agglomerate are averaged solid holdup, the agglomerate frequency of occurrences, agglomerate VELOCITY DISTRIBUTION, agglomerate average speed, agglomerate
Chord length distribution, agglomerate mean chord and the distribution of agglomerate diameter and agglomerate average diameter.
2. the method according to claim 1, wherein the bubble of determination solid holdup fluctuating signal to be decoupled
Phase threshold value and agglomerate phase threshold value, comprising:
According to the single order in the solid holdup fluctuating signal of the decoupling to Fourth square, the solid holdup pulsation of the decoupling is determined
Bubble volume fraction, bubble phase average solid holdup and the close phase average solid holdup of signal；
According to the bubble phase fraction, the bubble phase average solid holdup and the close phase average solid holdup, determine described wait solve
The bubble phase threshold value of the solid holdup fluctuating signal of coupling；
According to the solid holdup under the dense gas-solid flow starting fluidized state, the agglomerate phase threshold value is determined.
3. extraction is described wait solve the method according to claim 1, wherein described according to the bubble phase threshold value
Available bubble signals in the solid holdup fluctuating signal of coupling, comprising:
According to the bubble phase threshold value, the first gas is extracted from the solid holdup fluctuating signal to be decoupled that first probe obtains
Signal is steeped, extracts the second bubble signals from the reference solid holdup fluctuating signal that the second probe obtains；The first bubble signal
For the bubble paddy in the solid holdup fluctuating signal to be decoupled, second bubble signals are described with reference to solid holdup pulsation letter
Bubble paddy in number；
The first bubble signal and second bubble signals are matched, determines that the solid holdup to be decoupled is pulsed and believes
Available bubble signals in number.
4. extraction is described wait solve the method according to claim 1, wherein described according to the agglomerate phase threshold value
Available agglomerate signal in the solid holdup fluctuating signal of coupling, comprising:
According to the agglomerate phase threshold value, it is poly- that first is extracted from the solid holdup fluctuating signal to be decoupled that first probe obtains
Group's signal, extracts the second agglomerate signal from the reference solid holdup fluctuating signal that the second probe obtains；The first agglomerate signal
For the particle agglomeration peak in the solid holdup fluctuating signal to be decoupled, the second agglomerate signal is described with reference to solid holdup arteries and veins
Particle agglomeration peak in dynamic signal；
The first agglomerate signal and the second agglomerate signal are matched, determines that the solid holdup to be decoupled is pulsed and believes
Available agglomerate signal in number.
5. the method according to claim 1, wherein in the bubble phase for determining solid holdup fluctuating signal to be decoupled
After threshold value and agglomerate phase threshold value, further includes:
According to the bubble phase threshold value, determine the bubble phase phase fraction of the solid holdup fluctuating signal, bubble phase average solid holdup,
Bubble phase average solid holdup standard deviation；
According to the agglomerate phase threshold value, the close phase phase fraction of the solid holdup fluctuating signal, agglomerate phase phase fraction, close equal is determined
Equal solid holdup and close phase average solid holdup standard deviation.
6. a kind of decoupling device of solid holdup fluctuating signal characterized by comprising
Threshold determination module, it is described for determining the bubble phase threshold value and agglomerate phase threshold value of solid holdup fluctuating signal to be decoupled
Solid holdup fluctuating signal to be decoupled is obtained from dense gas-solid flow by the first probe；
Bubble signals module, for according to the bubble phase threshold value, extract in the solid holdup fluctuating signal to be decoupled can
Use bubble signals；
Agglomerate signaling module, for according to the agglomerate phase threshold value, extract in the solid holdup fluctuating signal to be decoupled can
With agglomerate signal；
First computing module, for according to can with bubble signals and it is described can with agglomerate signal, determine described in it is to be decoupled
The distribution of bubble solid holdup, the distribution of the bubble frequency of occurrences, bubble velocity, bubble average speed, bubble string of solid holdup fluctuating signal
Long distribution, bubble mean chord, agglomerate solid holdup are distributed, agglomerate is averaged solid holdup, the agglomerate frequency of occurrences, agglomerate VELOCITY DISTRIBUTION,
Agglomerate average speed, agglomerate chord length distribution, agglomerate mean chord and the distribution of agglomerate diameter and agglomerate average diameter.
7. device according to claim 6, which is characterized in that the threshold determination module, comprising:
Parameter determination unit determines institute for the single order in the solid holdup fluctuating signal according to the decoupling to Fourth square
State the bubble volume fraction, bubble phase average solid holdup and close phase average solid holdup of the solid holdup fluctuating signal of decoupling；
Bubble phase threshold value determination unit, for according to the bubble phase fraction, the bubble phase average solid holdup and the close phase
Average solid holdup determines the bubble phase threshold value of the solid holdup fluctuating signal to be decoupled；
Agglomerate phase threshold value determination unit, described in determining according to the solid holdup under the dense gas-solid flow starting fluidized state
Agglomerate phase threshold value.
8. device according to claim 6, which is characterized in that the bubble signals module, comprising:
With reference to bubble signals determination unit, for being obtained from first probe to be decoupled according to the bubble phase threshold value
First bubble signal is extracted in solid holdup fluctuating signal, extracts second from the reference solid holdup fluctuating signal that the second probe obtains
Bubble signals；The first bubble signal is the bubble paddy in the solid holdup fluctuating signal to be decoupled, second bubble
Signal is the bubble paddy with reference in solid holdup fluctuating signal；
First matching unit, for the first bubble signal and second bubble signals to be matched, determine it is described to
Available bubble signals in the solid holdup fluctuating signal of decoupling.
9. device according to claim 6, which is characterized in that the agglomerate signaling module, comprising:
With reference to agglomerate signal determination unit, for being obtained from first probe to be decoupled according to the agglomerate phase threshold value
The first agglomerate signal is extracted in solid holdup fluctuating signal, extracts second from the reference solid holdup fluctuating signal that the second probe obtains
Agglomerate signal；Particle agglomeration peak in first agglomerate signal solid holdup fluctuating signal to be decoupled for described in, described second
Agglomerate signal is the particle agglomeration peak with reference in solid holdup fluctuating signal；
Second matching unit, for the first agglomerate signal and the second agglomerate signal to be matched, determine it is described to
Available agglomerate signal in the solid holdup fluctuating signal of decoupling.
10. device according to claim 6, which is characterized in that further include:
Second computing unit, for according to the bubble phase threshold value, determine the solid holdup fluctuating signal bubble phase phase fraction,
Bubble phase average solid holdup, bubble phase average solid holdup standard deviation；
Third computing unit, for determining the close phase phase fraction of the solid holdup fluctuating signal, gathering according to the agglomerate phase threshold value
Group's phase phase fraction, close phase average solid holdup and close phase average solid holdup standard deviation.
11. a kind of electronic equipment characterized by comprising memory and processor；
The memory, for storing the executable instruction of the processor；
The processor is configured to carry out any method of perform claim requirement 1-5 via the execution executable instruction.
12. a kind of storage medium, is stored thereon with computer program characterized by comprising when the program is executed by processor
Realize any method of claim 1-5.
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