CN110736106A - data control method and device and electronic equipment - Google Patents
data control method and device and electronic equipment Download PDFInfo
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- CN110736106A CN110736106A CN201911050976.9A CN201911050976A CN110736106A CN 110736106 A CN110736106 A CN 110736106A CN 201911050976 A CN201911050976 A CN 201911050976A CN 110736106 A CN110736106 A CN 110736106A
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Abstract
The invention provides data control methods, devices and electronic equipment, which are used for obtaining parameters to be adjusted and adjustment reference data corresponding to the parameters, calculating parameter deviation values corresponding to the parameters, and adjusting the parameters according to the adjustment reference data if the parameter deviation values are within a preset deviation adjustment range.
Description
Technical Field
The invention relates to the field of boiler control, in particular to data control methods and devices and electronic equipment.
Background
In the combustion process of a boiler, times of wind carries a large amount of pulverized coal, so the influence on the combustion process is great, the unsafe problems of nozzle burning loss, pulverized coal pipe blockage and the like are easily caused when the wind speed is too low in times, on the contrary, when the wind speed is too high in times, pulverized coal ignition is delayed, the burnout degree of pulverized coal is influenced, the efficiency of the boiler is not good, and meanwhile, the wind rate of times has great influence on the NOx content in smoke exhaust, so the wind speed is necessarily adjusted in times.
Disclosure of Invention
In view of this, the present invention provides data control methods, apparatuses, and electronic devices to solve the problem of wind speed adjustment times.
In order to solve the technical problems, the invention adopts the following technical scheme:
A data control method, comprising:
acquiring parameters to be adjusted and adjustment reference data corresponding to the parameters;
calculating a parameter deviation value corresponding to the parameter;
and if the parameter deviation value is within a preset deviation adjusting range, adjusting the parameter according to the adjusting reference data.
Optionally, the parameter comprises coal fines concentration; the calculation formula of the parameter deviation value V corresponding to the coal powder concentration is as follows:
Optionally, if the parameter deviation value is within a preset deviation adjustment range, adjusting the parameter according to the adjustment reference data includes:
if the parameter deviation value of the coal dust concentration is within a preset deviation adjusting range corresponding to the coal dust concentration, acquiring a corresponding relation between the coal dust concentration and the opening of a coal dust concentration adjusting device;
and searching th opening degree value corresponding to the actually measured coal dust concentration from the corresponding relation, and adjusting the opening degree of the coal dust concentration adjusting device to th opening degree value.
Optionally, the parameters comprise wind speeds, and the calculation formula of the parameter deviation value U corresponding to the wind speeds comprises the following steps:
Optionally, if the parameter deviation value is within a preset deviation adjustment range, adjusting the parameter according to the adjustment reference data includes:
when the parameter deviation value corresponding to the pulverized coal concentration is within a normal deviation range and the parameter deviation value of the -time wind speed is within a preset deviation adjustment range corresponding to the -time wind speed, acquiring a corresponding relation between the -time wind speed and the opening degree of a wind speed adjusting device;
and searching a second opening value corresponding to the actually measured wind speed from the corresponding relation, and adjusting the opening of the wind speed adjusting device to the second opening value.
Optionally, the parameter comprises a furnace exit temperature; the calculation formula of the parameter deviation value W corresponding to the hearth outlet temperature is as follows:
w ═ Z2-Z1; z2 is the actually measured outlet temperature of the left side of the hearth; z1 is the measured furnace right outlet temperature.
Optionally, if the parameter deviation value is within a preset deviation adjustment range, adjusting the parameter according to the adjustment reference data includes:
and when the parameter deviation value corresponding to the coal powder concentration is in the corresponding normal deviation range, the parameter deviation value corresponding to the times of wind speed is in the corresponding normal deviation range, and the parameter deviation value of the hearth outlet temperature is in the preset deviation adjustment range corresponding to the hearth outlet temperature, sequentially adjusting the times of wind speed of the combustor according to a relation diagram of the times of wind speed and the hearth outlet temperature so that the parameter deviation value corresponding to the hearth outlet temperature is in the corresponding normal deviation range.
Optionally, the sequential adjustment of the wind speeds of the combustor is performed to make the deviation value of the parameter corresponding to the outlet temperature of the hearth within the corresponding normal deviation range, and the method comprises the following steps:
arranging all the burners in sequence according to the deviation value of the target temperature and the reference temperature; the target temperature is the actually measured outlet temperature of the left side of the hearth or the actually measured outlet temperature of the right side of the hearth;
adjusting wind speeds of the ith combustor, wherein i is a positive integer;
judging whether the parameter deviation value corresponding to the hearth outlet temperature is within a normal deviation range;
if not, changing i to i +1, and returning to the step of adjusting the wind speed of times of the ith combustor;
judging whether all the burners are adjusted completely;
if so, calculating a parameter deviation value corresponding to the current hearth outlet temperature;
and if the parameter deviation value corresponding to the current hearth outlet temperature is still within the preset deviation adjustment range, outputting warning information.
Optionally, the generation process of the relation graph of the wind speed and the furnace outlet temperature for times comprises the following steps:
regulating the wind speed of the burner for times to be the preset wind speed for multiple times, and acquiring the temperature of the left outlet of the hearth and the temperature of the right outlet of the hearth under the preset wind speed;
and drawing the average value of the temperature of the left outlet of the hearth and the average value of the temperature of the right outlet of the hearth to obtain the relational graph.
A data control apparatus, comprising:
the data acquisition module is used for acquiring parameters to be adjusted and adjustment reference data corresponding to the parameters;
the deviation value calculating module is used for calculating a parameter deviation value corresponding to the parameter;
and the adjusting module is used for adjusting the parameters according to the adjusting reference data if the parameter deviation value is within a preset deviation adjusting range.
electronic device including a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to:
acquiring parameters to be adjusted and adjustment reference data corresponding to the parameters;
calculating a parameter deviation value corresponding to the parameter;
and if the parameter deviation value is within a preset deviation adjusting range, adjusting the parameter according to the adjusting reference data.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides data control methods, devices and electronic equipment, which are used for obtaining parameters to be adjusted and adjustment reference data corresponding to the parameters, calculating parameter deviation values corresponding to the parameters, and adjusting the parameters according to the adjustment reference data if the parameter deviation values are within a preset deviation adjustment range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a method of data control methods according to an embodiment of the present invention;
FIG. 2 is an exemplary graph of opening degree and corresponding wind speed of wind speed adjustment devices according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of furnace temperature scenarios provided by an embodiment of the present invention;
fig. 4 is a schematic structural diagram of apparatuses for implementing a data control method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an data control device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of of the present invention, rather than all embodiments.
The long-time operation of the boiler can cause the uneven wind speed of times of wind, which has great influence on the boiler combustion and is easy to generate problems of partial burning, wall brushing, burning loss of a nozzle and the like, so the wind speed needs to be adjusted times, on the basis, the embodiment of the invention provides data control methods, and referring to fig. 1, the data control methods can comprise:
and S11, acquiring parameters to be adjusted and adjustment reference data corresponding to the parameters.
Parameters to be adjusted may include wind speeds, coal fines concentration, and furnace exit temperature.
The adjustment reference data corresponding to the parameters can be a data map corresponding to times of wind speed, coal dust concentration and furnace outlet temperature.
The data graph corresponding to the -time wind speeds can refer to fig. 2, which is a corresponding relation between the opening of the wind speed adjusting device and the -time wind speeds, and represents that different openings of the wind speed adjusting device correspond to different wind speeds;
when the curve is generated, the maximum opening span does not exceed 5%, encryption is needed in a common opening range, and an opening-wind speed characteristic curve model is made. At least twice, the error of the characteristic curve is judged to be qualified when the error of the characteristic curve is lower than 10%, the unqualified characteristic curve needs to be measured for many times to determine an accurate characteristic curve, and the cold and hot state tests need to do the part of work to comprehensively make a characteristic curve model.
The abscissa represents the opening (%) of the wind speed adjusting device, and the ordinate represents the measured wind speed (m/s), and as above, the approximate description curve is obtained by multiple measurements, and the power function is not representative of the characteristic curve but is a power function.
The data graph corresponding to the coal dust concentration is similar to the graph shown in fig. 2, and the representation shows that different opening degrees of the coal dust concentration adjusting device correspond to different coal dust concentrations.
The maximum opening span is not more than 5%, encryption is needed in a common opening range, and an opening-coal powder concentration characteristic curve model is made; at least twice, the error of the characteristic curve of twice is lower than 10 percent, the characteristic curve is regarded as qualified, and the unqualified characteristic curve needs to be measured for many times to determine the accurate characteristic curve.
Referring to fig. 4, a data diagram corresponding to the furnace outlet temperature represents smoke temperature deviations of the corresponding furnace and each heating surface when times of wind speed human intervention causes deviations, wherein the ordinate represents the left temperature, the right temperature and the pre-adjustment temperature (DEG C) of the furnace outlet, and the abscissa represents the adjustment time sequence, and the specific adjustment time sequence is shown in table 1.
TABLE 1 furnace outlet temperature adjusting time sequence table
In the adjusting process, A1-105 indicates that the A1 pulverized coal pipe is adjusted to a normal wind speed value of 105%, A2-110 indicates that the A2 pulverized coal pipe is adjusted to a normal wind speed value of 110%; and so on;
assuming that the left side and the right side of the outlet temperature of the front hearth are regulated to be 1105 ℃, the temperature fluctuates up and down after being regulated according to the characteristic curve regulation method;
and when the temperature of the outlet of the hearth is abnormal, adjusting the corresponding powder pipe according to the increase or decrease of the fluctuation value of the characteristic curve.
The generation process comprises the steps of adjusting the wind speed of the burner for times to be the preset wind speed for many times, obtaining the outlet temperature of the left side of the hearth and the outlet temperature of the right side of the hearth under the preset wind speed, and drawing the average value of the outlet temperatures of the left side of the hearth and the average value of the outlet temperatures of the right side of the hearth to obtain the relation graph.
In practical application, times of wind balance working condition is kept, and the temperature of the outlet of the hearth is measured and recorded;
and (3) independently adjusting the wind speed of a certain powder pipe times under 105% and 110% working conditions (namely preset wind speed), and measuring and recording the temperature change of the outlet of the hearth.
And (3) making wind speed-furnace temperature change models by making all the powder pipes corresponding to the temperature change of the outlet of the furnace under 105% and 110% working conditions, measuring for multiple times, removing the average value, and eliminating errors.
And S12, calculating a parameter deviation value corresponding to the parameter.
Firstly, the measured value corresponding to the parameter is obtained, and then the parameter deviation value is obtained according to the measured value and the reference value of the measured value under the same working conditions.
And S13, if the parameter deviation value is within a preset deviation adjustment range, adjusting the parameter according to the adjustment reference data.
The adjustment reference data is the data diagram of fig. 2-4.
In this embodiment, a parameter to be adjusted and adjustment reference data corresponding to the parameter are acquired, a parameter deviation value corresponding to the parameter is calculated, and if the parameter deviation value is within a preset deviation adjustment range, the parameter is adjusted according to the adjustment reference data.
The parameter adjusting process is described when the parameters are of times of wind speed, coal powder concentration and hearth outlet temperature, and the parameter adjusting sequence is coal powder concentration, times of wind speed and hearth outlet temperature.
1. The parameters comprise the concentration of the pulverized coal, because the pulverized coal concentration adjusting device influences the wind speed of times, the concentration of the pulverized coal is adjusted to be balanced firstly, after the concentration of the pulverized coal is balanced, the wind speed is adjusted times to be balanced, and the concentration of the pulverized coal can be automatically adjusted neglected without the pulverized coal concentration adjusting device.
The calculation formula of the parameter deviation value V corresponding to the coal powder concentration is as follows:
If the parameter deviation value is within a preset deviation adjustment range, adjusting the parameter according to the adjustment reference data, including:
if the parameter deviation value of the coal dust concentration is within a preset deviation adjusting range corresponding to the coal dust concentration, acquiring a corresponding relation between the coal dust concentration and the opening of a coal dust concentration adjusting device;
and searching th opening degree value corresponding to the actually measured coal dust concentration from the corresponding relation, and adjusting the opening degree of the coal dust concentration adjusting device to th opening degree value.
In practical application, frequent actions of the adjusting device caused by coal dust concentration fluctuation are avoided, and when the coal dust concentration deviation of the default operation of the system is within +/-5%, the coal dust concentration is not adjusted. The concentration deviation of the pulverized coal is more than 30%, and the automatic adjustment is closed; sending out an alarm signal, and correcting the feedforward module again;
pulverized coal concentration adjusting range (preset deviation adjusting range)
The lower limit of the deviation adjustment of the A2 coal powder concentration A1 is 0.05
B2 coal powder concentration deviation adjustment upper limit B2 is 0.3
Y actual measurement of coal powder concentration
And the coal dust concentration reference value in the data graph corresponding to the Y1 coal dust concentration and under the same working condition with the actually measured coal dust concentration.
And when the coal dust concentration is in the adjustable range, controlling the coal dust concentration adjusting device to adjust according to the data graph corresponding to the coal dust concentration to be completely balanced.
Specifically, the data graph corresponding to the coal dust concentration represents the corresponding relationship between the coal dust concentration and the opening degree of the coal dust concentration adjusting device, the th opening degree value corresponding to the actually measured coal dust concentration is searched from the corresponding relationship, and the opening degree of the coal dust concentration adjusting device is adjusted to the th opening degree value.
The opening degree represents the adjusting characteristic of the coal dust concentration adjusting device to the coal dust concentration. For example, the average ABCD coal dust concentration of the coal dust pipes on the same layer is 0.5, wherein the concentration of the coal dust a is 0.55, the concentration of the coal dust D is 0.45, and the concentration of the coal dust BC is 0.5; the coal powder concentration deviation of the coal powder pipe A is 10 percent, and the coal powder concentration deviation of the coal powder pipe D is-10 percent; the opening of the ABCD coal powder concentration adjusting device is 70%; in the coal powder concentration curve, 70% of the opening of the coal powder pipe A adjusting device corresponds to the coal powder concentration X, and the opening of the coal powder adjusting device corresponding to the X is searched for (1-0.1) and is adjusted according to the opening; and checking whether the coal powder concentration deviation is in a reasonable range after the coal powder concentration deviation is adjusted in place, and repeating the process in the reasonable range until the coal powder concentration is balanced.
2. The parameters comprise wind speeds, and the calculation formula of the parameter deviation value U corresponding to the wind speeds comprises the following steps:
If the parameter deviation value is within a preset deviation adjustment range, adjusting the parameter according to the adjustment reference data, including:
when the parameter deviation value corresponding to the pulverized coal concentration is within a normal deviation range and the parameter deviation value of the -time wind speed is within a preset deviation adjustment range corresponding to the -time wind speed, acquiring a corresponding relation between the -time wind speed and the opening degree of a wind speed adjusting device;
and searching a second opening value corresponding to the actually measured wind speed from the corresponding relation, and adjusting the opening of the wind speed adjusting device to the second opening value.
In practical application, frequent action of the adjusting device caused by wind speed fluctuation is avoided, when the wind deviation is within +/-5% after the system is operated for times by default, the wind speed is not adjusted, the wind deviation is more than +/-20% after times of operation for a long time (more than a preset time threshold), automatic adjustment is closed, an alarm signal is sent, and the feedforward module needs to be corrected again;
wind speed regulating range (Preset deviation regulating range)
The lower limit A of the wind speed deviation adjustment of A1 is 0.05
B1 wind speed deviation regulating upper limit B equal to 0.2
X measured wind speed
X1 is the wind speed reference value in FIG. 2 under the same condition as the measured wind speed.
When the wind speed of times is in the adjustable range of wind speed, the times of wind speed adjusting device is controlled to adjust according to the characteristic curve of figure 2, and the wind speed is adjusted to be completely balanced.
Specifically, fig. 2 represents times of correspondence between the wind speed and the opening degree of the wind speed adjusting device, and searches for a second opening degree value corresponding to the actually measured wind speed from the correspondence, and adjusts the opening degree of the wind speed adjusting device to the second opening degree value.
For example, the average value of 0 times of wind speeds of an ABCD of the same-layer pulverized coal pipe is 25m/s, wherein the wind speeds of A times are 22m/s, the wind speeds of D times are 28m/s, the wind speeds of BC times are 25m/s, the wind speed deviation of an A pulverized coal pipe times is-12%, the pulverized coal concentration deviation of a D pulverized coal pipe is 12%, the wind speed regulating device opening of an ABCD time is 60%, in a pulverized coal concentration curve, 60% of the wind speed regulating device opening of the A time corresponds to times of wind speed Y, the wind speed regulating device opening of (1+0.12) X corresponds to times is searched and regulated accordingly, whether the wind speed deviation of times is in a reasonable range after the wind speed regulating device is regulated in place or not is checked, the process is not repeated in the reasonable range until the wind speeds of times are balanced.
3. When the temperature of the outlet of the hearth is adjusted, the balance of the wind speed of times can be damaged, under the condition that the wind speed of times needs to be adjusted firstly and the wind speed and the coal powder concentration of times are balanced, if the temperature of the outlet of the hearth needs to be adjusted, the temperature of the outlet of the hearth is adjusted.
The calculation formula of the parameter deviation value W corresponding to the hearth outlet temperature is as follows:
w ═ Z2-Z1; z2 is the actually measured outlet temperature of the left side of the hearth; z1 is the measured furnace right outlet temperature.
When the module is started, the balance of wind speed of times can be damaged, so the wind speed control module is closed for times, and the pulverized coal concentration control module continues to operate, wherein the reason that the wind speed control module is required to be closed for times is that the wind speed control module for times is in parallel relation with the hearth temperature control module and cannot operate simultaneously, for example, when the hearth outlet temperature control module requires 110% of wind speed of a certain combustor, the wind speed automatic control module for times considers that 110% is a deviation signal and automatically adjusts to 100%, so the wind speed automatic control module and the hearth outlet temperature control module can only be in parallel and cannot operate simultaneously, and times of wind speed variation is used for correcting a characteristic curve after the hearth outlet temperature is adjusted.
In order to avoid frequent actions of an adjusting device caused by temperature fluctuation of a hearth outlet, when the default temperature deviation of the system is within 50 ℃, the wind speed is not adjusted, when the temperature deviation of the hearth outlet is over 150 ℃, adjustment is not carried out, an alarm signal is sent out, the temperature of the hearth outlet needs to be manually adjusted, when the temperature deviation of the hearth outlet is within 50-150 ℃, adjustment is carried out according to a graph shown in figure 3, and the wind speed cannot exceed 110 percent specified by a data graph corresponding to the wind speed of times;
smoke temperature deviation regulating range (Preset deviation regulating range)
A3＜|Z2-Z1|＜B3
The lower limit of the temperature deviation adjustment of the A3 hearth outlet A1 is 50
The upper limit B2 of the temperature adjustment of the furnace outlet of B3 is 150
Z2 actually measuring the outlet temperature of the left side of the hearth
Z1 measures the outlet temperature at the right side of the furnace.
On this basis, if the parameter deviation value is within a preset deviation adjustment range, adjusting the parameter according to the adjustment reference data, including:
and when the parameter deviation value corresponding to the coal powder concentration is in the corresponding normal deviation range, the parameter deviation value corresponding to the times of wind speed is in the corresponding normal deviation range, and the parameter deviation value of the hearth outlet temperature is in the preset deviation adjustment range corresponding to the hearth outlet temperature, sequentially adjusting the times of wind speed of the combustor according to a relation diagram of the times of wind speed and the hearth outlet temperature so that the parameter deviation value corresponding to the hearth outlet temperature is in the corresponding normal deviation range.
The wind speeds of the combustor are sequentially adjusted, so that the parameter deviation value corresponding to the temperature of the outlet of the hearth is within the corresponding normal deviation range, and the method comprises the following steps:
arranging all the burners in sequence according to the deviation value of the target temperature and the reference temperature; the target temperature is the temperature of the outlet at the left side of the hearth or the temperature of the outlet at the right side of the hearth;
adjusting wind speeds of the ith combustor, wherein i is a positive integer;
judging whether the parameter deviation value corresponding to the hearth outlet temperature is within a normal deviation range;
if not, changing i to i +1, and returning to the step of adjusting the wind speed of times of the ith combustor;
judging whether all the burners are adjusted completely;
if so, calculating a parameter deviation value corresponding to the current hearth outlet temperature;
and if the parameter deviation value corresponding to the current hearth outlet temperature is still within the preset deviation adjustment range, outputting warning information.
In practical application, wind speed of a single burner beneficial to smoke temperature balance is automatically adjusted in a grading manner, wherein wind speed of times of the single burner is adjusted each time (for example, the temperature of an outlet on the left side of a hearth is adjusted first, then the temperature of an outlet on the right side of the hearth is adjusted, the influence of the burner on the temperature of the outlet on the left side of the hearth is firstly sequenced according to the difference between the temperature of the outlet on the left side of the hearth and the temperature of the outlet on the right side of the hearth in fig. 3 from large to small, -th burners are firstly screened out), the wind speed of times of the burners is adjusted to be 105%, whether W is normal (less than 50 ℃) is observed, if not, the wind speed of times is continuously adjusted to be 110%, whether W is normal (less than 50 ℃) is observed, if not, the adjusting process of the second burner is adjusted to be the same as that of burners, whether W is normal is judged, if not, the adjusting is continued until all;
and after the adjustment of all the burners is finished, the smoke temperature deviation is more than 50 ℃, the adjustment is stopped, and an alarm signal is sent to prompt that manual adjustment is needed.
And after all adjustments are finished, stopping the adjustment, outputting a wind speed deviation coefficient, adding the coefficient into a Distributed Control System (DCS) system, closing a furnace outlet temperature control module, starting times of wind speed control modules, and selecting operation data corresponding to the times of wind speed.
The hearth outlet temperature control module is started for more than 5 times, and sends out an alarm signal to prompt that wind checks need to be fed forward.
The implementation process of the method is implemented by the structure diagram of fig. 4, specifically:
a correction/feedforward module: the module comprises two parts, namely cold and hot state test and feedforward model establishment. Cold and hot state tests determine various manual measurement parameters covered by the invention; the feedforward model establishes a model covering various characteristic curves.
An operation adjusting module: this module needs to include the various modules described above, such as the furnace exit temperature control module, and so forth.
The data acquisition/feedback module refers to various automatic measuring devices covered by the invention, including but not limited to a thermocouple, an air quantity measuring device, a coal powder fineness on-line measuring device, a coal powder concentration on-line measuring device and a coal powder on-line analyzing device.
And the data analysis processing module judges the consistency of the acquired data and the characteristic curve model requirement and processes the consistency.
And the control module comprises the control module and respectively controls the wind speed, the coal powder concentration and the temperature of the outlet of the hearth for times according to the above.
The output module is used for outputting adjustment values of various parameters, such as the opening degree of an -time wind speed adjusting device, the opening degree of a pulverized coal concentration adjusting device, the furnace temperature, a coal quantity measuring point, a steam flow measuring point and the like;
in the embodiment, based on feedforward, feedback parameters and a fuzzy algorithm provided by a control module are combined, and the coordinated control of feedforward, feedback and control is adopted, so that -time wind system measurement errors are reduced, the problem of frequent adjustment of equipment caused by -time wind fluctuation is solved, and the safety of the equipment is enhanced by adding overrun control and overrun alarm.
Optionally, on the basis of the foregoing embodiment of the data control method, another embodiment of the present invention provides data control apparatuses, and with reference to fig. 5, the data control apparatuses may include:
the data acquisition module 11 is configured to acquire a parameter to be adjusted and adjustment reference data corresponding to the parameter;
the deviation value calculating module 12 is used for calculating a parameter deviation value corresponding to the parameter;
and the adjusting module 13 is configured to adjust the parameter according to the adjustment reference data if the parameter deviation value is within a preset deviation adjusting range.
In this embodiment, a parameter to be adjusted and adjustment reference data corresponding to the parameter are acquired, a parameter deviation value corresponding to the parameter is calculated, and if the parameter deviation value is within a preset deviation adjustment range, the parameter is adjusted according to the adjustment reference data.
It should be noted that, for the working process of each module in this embodiment, please refer to the corresponding description in the above embodiments, which is not described herein again.
Optionally, on the basis of the above embodiment of the data control method, the parameter includes a pulverized coal concentration; the calculation formula of the parameter deviation value V corresponding to the coal powder concentration is as follows:
y is the actually measured coal powder concentration; y1 is a coal dust concentration reference value under the same working condition with the measured wind speed.
Further , if the parameter deviation value is within a preset deviation adjustment range, the adjusting module 13 is specifically configured to:
if the parameter deviation value of the coal dust concentration is within a preset deviation adjusting range corresponding to the coal dust concentration, acquiring a corresponding relation between the coal dust concentration and the opening of a coal dust concentration adjusting device;
and searching th opening degree value corresponding to the actually measured coal dust concentration from the corresponding relation, and adjusting the opening degree of the coal dust concentration adjusting device to th opening degree value.
Optionally, on the basis of the above embodiment of the data control method, the parameter includes wind speeds, and the calculation formula of the parameter deviation value U corresponding to the wind speeds:
x is the measured wind speed; and X1 is a wind speed reference value under the same working condition with the measured wind speed.
Further , if the parameter deviation value is within a preset deviation adjustment range, the adjusting module 13 is specifically configured to:
when the parameter deviation value corresponding to the pulverized coal concentration is within a normal deviation range and the parameter deviation value of the -time wind speed is within a preset deviation adjustment range corresponding to the -time wind speed, acquiring a corresponding relation between the -time wind speed and the opening degree of a wind speed adjusting device;
and searching a second opening value corresponding to the actually measured wind speed from the corresponding relation, and adjusting the opening of the wind speed adjusting device to the second opening value.
Optionally, on the basis of the above embodiment of the data control method, the parameter includes a furnace exit temperature; the calculation formula of the parameter deviation value W corresponding to the hearth outlet temperature is as follows:
w ═ Z2-Z1; z2 is the actually measured outlet temperature of the left side of the hearth; z1 is the measured furnace right outlet temperature.
Further , if the parameter deviation value is within a preset deviation adjustment range, the adjusting module 13 is specifically configured to:
and when the parameter deviation value corresponding to the coal powder concentration is in the corresponding normal deviation range, the parameter deviation value corresponding to the times of wind speed is in the corresponding normal deviation range, and the parameter deviation value of the hearth outlet temperature is in the preset deviation adjustment range corresponding to the hearth outlet temperature, sequentially adjusting the times of wind speed of the combustor according to a relation diagram of the times of wind speed and the hearth outlet temperature so that the parameter deviation value corresponding to the hearth outlet temperature is in the corresponding normal deviation range.
In detail, the adjusting module 13 may include:
the sequencing submodule is used for sequencing all the burners according to the deviation value of the target temperature and the reference temperature; the target temperature is the actually measured outlet temperature of the left side of the hearth or the actually measured outlet temperature of the right side of the hearth;
the wind speed adjusting submodule is used for adjusting the wind speed of times of the ith combustor, wherein i is a positive integer;
an th judgment submodule, configured to judge whether a parameter deviation value corresponding to the hearth outlet temperature is within a normal deviation range;
a data determination submodule, configured to if not, change i to i +1, and return to the step of adjusting the wind speed of times for the ith combustor;
the second judgment submodule is used for judging whether all the burners are completely adjusted;
the calculating submodule is used for calculating a parameter deviation value corresponding to the current hearth outlet temperature if the current hearth outlet temperature is higher than the preset temperature;
and the information output submodule is used for outputting warning information if the parameter deviation value corresponding to the current hearth outlet temperature is still within the preset deviation adjustment range.
, further comprising:
and the graph generating module is used for adjusting the wind speed of the burner for times to be the preset wind speed for many times, acquiring the temperature of the left outlet of the hearth and the temperature of the right outlet of the hearth under the preset wind speed, and drawing the average value of the temperature of the left outlet of the hearth and the average value of the temperature of the right outlet of the hearth to obtain the relation graph.
In the embodiment, based on feedforward, feedback parameters and a fuzzy algorithm provided by a control module are combined, and the coordinated control of feedforward, feedback and control is adopted, so that -time wind system measurement errors are reduced, the problem of frequent adjustment of equipment caused by -time wind fluctuation is solved, and the safety of the equipment is enhanced by adding overrun control and overrun alarm.
It should be noted that, for the working processes of each module and sub-module in this embodiment, please refer to the corresponding description in the above embodiments, which is not described herein again.
Optionally, on the basis of the above data control method, another embodiment of the present invention provides electronic devices, including a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to:
acquiring parameters to be adjusted and adjustment reference data corresponding to the parameters;
calculating a parameter deviation value corresponding to the parameter;
and if the parameter deviation value is within a preset deviation adjusting range, adjusting the parameter according to the adjusting reference data.
In this embodiment, a parameter to be adjusted and adjustment reference data corresponding to the parameter are acquired, a parameter deviation value corresponding to the parameter is calculated, and if the parameter deviation value is within a preset deviation adjustment range, the parameter is adjusted according to the adjustment reference data.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
Claims (11)
1, A data control method, comprising:
acquiring parameters to be adjusted and adjustment reference data corresponding to the parameters;
calculating a parameter deviation value corresponding to the parameter;
and if the parameter deviation value is within a preset deviation adjusting range, adjusting the parameter according to the adjusting reference data.
2. The data control method of claim 1, wherein the parameter comprises a coal fines concentration; the calculation formula of the parameter deviation value V corresponding to the coal powder concentration is as follows:
3. The data control method of claim 1, wherein adjusting the parameter according to the adjustment reference data if the parameter deviation value is within a predetermined deviation adjustment range comprises:
if the parameter deviation value of the coal dust concentration is within a preset deviation adjusting range corresponding to the coal dust concentration, acquiring a corresponding relation between the coal dust concentration and the opening of a coal dust concentration adjusting device;
and searching th opening degree value corresponding to the actually measured coal dust concentration from the corresponding relation, and adjusting the opening degree of the coal dust concentration adjusting device to th opening degree value.
4. The data control method of claim 3, wherein the parameters comprise wind speeds, and the wind speeds correspond to the calculation formula of the parameter deviation value U:
5. The data control method of claim 4, wherein adjusting the parameter according to the adjustment reference data if the parameter deviation value is within a predetermined deviation adjustment range comprises:
when the parameter deviation value corresponding to the pulverized coal concentration is within a normal deviation range and the parameter deviation value of the -time wind speed is within a preset deviation adjustment range corresponding to the -time wind speed, acquiring a corresponding relation between the -time wind speed and the opening degree of a wind speed adjusting device;
and searching a second opening value corresponding to the actually measured wind speed from the corresponding relation, and adjusting the opening of the wind speed adjusting device to the second opening value.
6. The data control method of claim 1, wherein the parameter comprises a furnace exit temperature; the calculation formula of the parameter deviation value W corresponding to the hearth outlet temperature is as follows:
w ═ Z2-Z1; z2 is the actually measured outlet temperature of the left side of the hearth; z1 is the measured furnace right outlet temperature.
7. The data control method of claim 6, wherein adjusting the parameter according to the adjustment reference data if the parameter deviation value is within a predetermined deviation adjustment range comprises:
and when the parameter deviation value corresponding to the coal powder concentration is in the corresponding normal deviation range, the parameter deviation value corresponding to the times of wind speed is in the corresponding normal deviation range, and the parameter deviation value of the hearth outlet temperature is in the preset deviation adjustment range corresponding to the hearth outlet temperature, sequentially adjusting the times of wind speed of the combustor according to a relation diagram of the times of wind speed and the hearth outlet temperature so that the parameter deviation value corresponding to the hearth outlet temperature is in the corresponding normal deviation range.
8. The data control method of claim 7, wherein the step of sequentially adjusting the wind speeds of the burner to make the deviation value of the parameter corresponding to the outlet temperature of the hearth within the corresponding normal deviation range comprises:
arranging all the burners in sequence according to the deviation value of the target temperature and the reference temperature; the target temperature is the actually measured outlet temperature of the left side of the hearth or the actually measured outlet temperature of the right side of the hearth;
adjusting wind speeds of the ith combustor, wherein i is a positive integer;
judging whether the parameter deviation value corresponding to the hearth outlet temperature is within a normal deviation range;
if not, changing i to i +1, and returning to the step of adjusting the wind speed of times of the ith combustor;
judging whether all the burners are adjusted completely;
if so, calculating a parameter deviation value corresponding to the current hearth outlet temperature;
and if the parameter deviation value corresponding to the current hearth outlet temperature is still within the preset deviation adjustment range, outputting warning information.
9. The data control method of claim 8, wherein the generation process of the relation graph of the wind speed and the furnace outlet temperature for times comprises the following steps:
regulating the wind speed of the burner for times to be the preset wind speed for multiple times, and acquiring the temperature of the left outlet of the hearth and the temperature of the right outlet of the hearth under the preset wind speed;
and drawing the average value of the temperature of the left outlet of the hearth and the average value of the temperature of the right outlet of the hearth to obtain the relational graph.
10, A data control device, comprising:
the data acquisition module is used for acquiring parameters to be adjusted and adjustment reference data corresponding to the parameters;
the deviation value calculating module is used for calculating a parameter deviation value corresponding to the parameter;
and the adjusting module is used for adjusting the parameters according to the adjusting reference data if the parameter deviation value is within a preset deviation adjusting range.
11, electronic device, comprising a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to:
acquiring parameters to be adjusted and adjustment reference data corresponding to the parameters;
calculating a parameter deviation value corresponding to the parameter;
and if the parameter deviation value is within a preset deviation adjusting range, adjusting the parameter according to the adjusting reference data.
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