CN108896707A - A kind of calculation method of NOX small hourly value and annual average - Google Patents
A kind of calculation method of NOX small hourly value and annual average Download PDFInfo
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- CN108896707A CN108896707A CN201810518965.8A CN201810518965A CN108896707A CN 108896707 A CN108896707 A CN 108896707A CN 201810518965 A CN201810518965 A CN 201810518965A CN 108896707 A CN108896707 A CN 108896707A
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- nox
- time
- value
- analog quantity
- annual average
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/0037—Specially adapted to detect a particular component for NOx
Abstract
The invention discloses a kind of calculation methods of NOX small hourly value and annual average, include the following steps：Time trigger module is first built, which is used for the pulse within a specified time exported, and single pulse width is calculating cycle；Analog quantity statistical module is built, which is used to add up to the input analog quantity in certain time, be averaged, be maximized or minimum value；Then the real-time NOX value in 1 hour and/or 24 hours is obtained by site analysis device；All real-time NOX values are finally inputted into the analog quantity statistical module, required NOX value is calculated by the analog quantity statistical module, when time trigger module exports pulse, NOX needed for analog quantity statistical module exports is extremely.After method of the invention, unit operation personnel can more intuitively have gained some understanding to denitration NOX situation of change, and the regulation of unit environmental protection parameter has been played and has energetically been acted on.
Description
Technical field
The present invention relates to NOX control technology field more particularly to the calculation methods of a kind of NOX small hourly value and annual average.
Background technique
Currently, in the acquisition regulator control system of domestic unit NOX and defeated without the small hourly value of exhanst gas outlet NOX and annual average
Function out.This results in being difficult carrying out timeliness quantitative analysis to the amount of NOX in machine set outlet flue gas on the whole.
Summary of the invention
In view of the above deficiencies, the object of the present invention is to provide a kind of calculation method of NOX small hourly value and annual average, the party
Method can the small hourly value of intuitive and accurate acquisition NOX and annual average, the manipulation for excluding the unit of NOX improve reliable data.
To achieve the above object, the technical scheme is that：
A kind of calculation method of NOX small hourly value and annual average, includes the following steps：
Time trigger module is built, the time trigger module is used for the pulse within a specified time exported, the pulse
Width is calculating cycle；
Analog quantity statistical module is built, the analog quantity statistical module is tired for carrying out to the input analog quantity in certain time
Add, be averaged, being maximized or minimum value；
The real-time NOX value in 1 hour and/or 24 hours is obtained by site analysis device；
All real-time NOX values are inputted into the analog quantity statistical module, required NOX is calculated by the analog quantity statistical module
Value, when the time trigger module exports pulse, NOX needed for the analog quantity statistical module exports is extremely.
Preferred embodiment is, further comprising the steps of：Build images outputting module, the images outputting module is by required NOX
Value display is on an output device.
Preferred embodiment is that the analog quantity statistical module includes NOX annual average output end and the small hourly value output end of NOX；
The analog quantity statistical module carries out mean value calculation, obtains the small hourly value of NOX to the real-time MOX value in 1 hour, described
The small hourly value of NOX is exported from the small hourly value output end of the NOX；The analog quantity statistical module is to real-time in 24 hours
MOX value carries out mean value calculation, show that the small hourly value of NOX, the NOX annual average are exported from the NOX annual average output end.
Preferred embodiment is that mean value calculation mode is：The rectangular integration of time is carried out to real-time NOX.
Preferred embodiment is that the mode of the time trigger module output pulse includes the following steps：
Obtain current time；
Judge whether current time matches with preheating setting time；
If current time matches with preheating setting time for the first time or current time is more than preheating setting time；
Then, time trigger module exports a pulse；
Otherwise it does not export.
Preferred embodiment is that the preheating setting time is time range.
Preferred embodiment is that the real-time NOX is the NOX value in unit denitrification process.
After adopting the above technical scheme, the beneficial effects of the invention are as follows：
Due to the calculation method of NOX small hourly value and annual average of the invention, include the following steps：Time trigger module is built,
The time trigger module is used for the pulse within a specified time exported, and single pulse width is calculating cycle；Build analog quantity system
Module is counted, the analog quantity statistical module is for adding up to the input analog quantity in certain time, being averaged, being maximized or most
Small value；The real-time NOX value in 1 hour and/or 24 hours is obtained by site analysis device；All real-time NOX values are inputted into institute
Analog quantity statistical module is stated, required NOX value is calculated by the analog quantity statistical module, exports simple venation in time trigger module
When rushing, NOX needed for analog quantity statistical module exports is extremely.After method of the invention, unit operation personnel can be more intuitive
Ground has gained some understanding to denitration NOX situation of change, and the regulation of unit environmental protection parameter has been played and has energetically been acted on, for reply environmental protection
Platform inspection, monitoring provide forcefully Data safeguard.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, following embodiment carries out the present invention
It is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit
The present invention.
A kind of calculation method of NOX small hourly value and annual average, includes the following steps：
S1, time trigger module is built, time trigger module is used for the pulse within a specified time exported, and single pulse width is
Calculating cycle；
S2, build analog quantity statistical module, analog quantity statistical module for being added up to the input analog quantity in certain time,
It is average, be maximized or minimum value；
S3, the real-time NOX value in 1 hour and/or 24 hours is obtained by site analysis device；Real-time NOX is unit in this example
NOX value in denitrification process.
S4, all real-time NOX values are inputted into analog quantity statistical module, required NOX is calculated by analog quantity statistical module
Value, when time trigger module exports pulse, NOX needed for analog quantity statistical module exports is extremely.
It is further comprising the steps of in the present embodiment：S25, images outputting module is built, images outputting module is by required NOX
Value display is on an output device.
In the present embodiment：Analog quantity statistical module includes NOX annual average output end and the small hourly value output end of NOX；Simulation
Statistical module is measured to the real-time MOX value in 1 hour, carries out mean value calculation, obtains the small hourly value of NOX, the small hourly value of NOX from
The small hourly value output end output of NOX；Analog quantity statistical module carries out mean value calculation, obtains to the real-time MOX value in 24 hours
The small hourly value of NOX out, NOX annual average are exported from NOX annual average output end.
The function of analog quantity statistical module is to input analog quantity（Real-time NOX value）, by setting in specified a period of time
It inside added up, average value, be maximized or be minimized, mean value is mainly gone in this example.In mean value computation algorithm mainly
Average function is selected, and the realization of average function depends on the rectangular integration that the time is carried out to input signal.Analog quantity counts mould
All calculated results of block are carried out in the case where the output of time trigger module is 1, and otherwise output is all 0.
Above-mentioned mean value calculation mode is：The rectangular integration of time is carried out to real-time NOX.
In the present embodiment：Time trigger module exports the mode of pulse, includes the following steps：
S10, current time is obtained；
S12, judge whether current time matches with preheating setting time；
If S14, current time match with preheating setting time for the first time or current time is more than preheating setting time；, when presetting
Between be time range.
S16, then, time trigger module export a pulse；
S18, it does not otherwise export.
Time trigger module is the module for given time output pulse.When in functional block by current time and setting
Between compare, when meeting or exceeding setting time for the first time, export a pulse, width is calculating cycle.In time trigger module
The moon, day, hour, minute, second are set by value range, and super go beyond the scope will cannot get pulse output.
After method of the invention, compensate for function that existing computer system itself does not have have it is highly important
Meaning.Wherein analog quantity statistical module forms complete data statistics time-domain calculation algorithm by reasonable logical combination, this is not
It is only capable of applying in terms of denitration side data calculating, for other aspect data Time-domain Statistics and calculate also with extremely strong application
Property.
When the present invention is applied with unit denitration, mean algorithm largely provides for unit environment monitoring can prosecutor
Case, real value monitoring can not completely reflect the effective status of environment monitoring during unit continuous operation, and quantify to count
Calculate is that environment monitoring point integrally investigates offer foundation, and provides Primary Stage Data for following data quantization calculating and support.
After method of the invention, unit operation personnel can more intuitively to denitration NOX situation of change
Solution has played the regulation of unit environmental protection parameter and has energetically acted on, and platform inspection environmentally friendly for reply, monitoring provide strong
Ground Data safeguard.
The preferred embodiment of present invention described above, is not intended to limit the invention, it is all in spirit of the invention and
Within principle it is made it is any modification, etc. the small hourly value of same NOX and the improvement of calculation method of annual average etc., should all include
Within protection scope of the present invention.
Claims (7)
1. a kind of calculation method of NOX small hourly value and annual average, which is characterized in that include the following steps：
Time trigger module is built, the time trigger module is used for the pulse within a specified time exported, the pulse
Width is calculating cycle；
Analog quantity statistical module is built, the analog quantity statistical module is tired for carrying out to the input analog quantity in certain time
Add, be averaged, being maximized or minimum value；
The real-time NOX value in 1 hour and/or 24 hours is obtained by site analysis device；
All real-time NOX values are inputted into the analog quantity statistical module, required NOX is calculated by the analog quantity statistical module
Value, when the time trigger module exports pulse, NOX needed for the analog quantity statistical module exports is extremely.
2. the calculation method of NOX small hourly value and annual average according to claim 1, which is characterized in that further include following
Step：
Images outputting module is built, the images outputting module shows required NOX value on an output device.
3. the calculation method of NOX small hourly value and annual average according to claim 1, which is characterized in that the analog quantity
Statistical module includes NOX annual average output end and the small hourly value output end of NOX；
The analog quantity statistical module carries out mean value calculation, obtains the small hourly value of NOX to the real-time MOX value in 1 hour,
The small hourly value of NOX is exported from the small hourly value output end of the NOX；
The analog quantity statistical module carries out mean value calculation, obtains the small hourly value of NOX to the real-time MOX value in 24 hours,
The NOX annual average is exported from the NOX annual average output end.
4. the calculation method of NOX small hourly value and annual average according to claim 3, which is characterized in that mean value calculation
Mode is：The rectangular integration of time is carried out to real-time NOX.
5. the calculation method of NOX small hourly value and annual average according to claim 1, which is characterized in that the time touching
The mode for sending out module output pulse, includes the following steps：
Obtain current time；
Judge whether current time matches with preheating setting time；
If current time matches with preheating setting time for the first time or current time is more than preheating setting time；
Then, time trigger module exports a pulse；
Otherwise it does not export.
6. the calculation method of NOX small hourly value and annual average according to claim 5, which is characterized in that described presetting
Time is time range.
7. the calculation method of NOX small hourly value and annual average according to any one of claims 1 to 6, which is characterized in that institute
Stating real-time NOX is the NOX value in unit denitrification process.
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| CN201810518965.8A CN108896707A (en) | 2018-05-25 | 2018-05-25 | A kind of calculation method of NOX small hourly value and annual average |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113069919A (en) * | 2021-04-27 | 2021-07-06 | 国能南京电力试验研究有限公司 | Method for calculating continuous hourly mean value of NOx concentration |
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2018
- 2018-05-25 CN CN201810518965.8A patent/CN108896707A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113069919A (en) * | 2021-04-27 | 2021-07-06 | 国能南京电力试验研究有限公司 | Method for calculating continuous hourly mean value of NOx concentration |
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Application publication date: 20181127 |