CN106526075A - Flue gas monitoring method and apparatus - Google Patents
Flue gas monitoring method and apparatus Download PDFInfo
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- CN106526075A CN106526075A CN201610884339.1A CN201610884339A CN106526075A CN 106526075 A CN106526075 A CN 106526075A CN 201610884339 A CN201610884339 A CN 201610884339A CN 106526075 A CN106526075 A CN 106526075A
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 249
- 239000003546 flue gas Substances 0.000 title claims abstract description 249
- 238000012544 monitoring process Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000000630 rising effect Effects 0.000 claims abstract description 45
- 238000012806 monitoring device Methods 0.000 claims description 108
- 238000012545 processing Methods 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 230000000052 comparative effect Effects 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 8
- 235000019504 cigarettes Nutrition 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 description 20
- 239000003500 flue dust Substances 0.000 description 13
- 239000013618 particulate matter Substances 0.000 description 10
- 238000000738 capillary electrophoresis-mass spectrometry Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 9
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
Classifications
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the field of environmental monitoring and discloses a flue gas monitoring method and apparatus; the method comprises: receiving monitored flue gas measured values respectively from a first flue gas monitor and a second flue gas monitor, wherein a range of the first flue gas monitor is less than that of the second flue gas monitor; judging whether the monitored flue gas measured values are in rising edge state or falling edge state, and selecting a corresponding switch threshold according to judging results; comparing the flue gas measured value of the first flue gas monitor with the selected corresponding switch threshold, and determining whether to use the flue gas measured value of the first flue gas monitor or the flue gas measured value of the second flue gas monitor as an output according to the comparison results. The flue gas monitors with different ranges can be used for different conditions to allow accurate monitoring for flue gas.
Description
Technical field
A kind of the present invention relates to environment monitoring field, in particular it relates to method and apparatus of flue gas monitoring.
Background technology
Flue gas monitoring device, such as stationary source flue gas CEMS (flue gas monitoring system) can be used to determine particulate matter in flue gas
Concentration, gaseous contaminant concentration, and measurement flue-gas temperature, flue gas pressures, flue gas flow rate or flow, humidity of flue gas are (or defeated
Enter humidity of flue gas), the parameter such as Oxygen Amount in Flue Gas (or carbon dioxide content).
Industry Plays are (for example《Fossil-fuel power plant atmospheric pollutant emission standard》(GB 13223-2011)) in emission limit rule
It is fixed, coal-burning boiler flue dust<30mg/Nm3, SO2<100mg/Nm3, NOx<100mg/Nm3.The flue gas monitoring device for being configured is (for example,
CEMS instrument) range select generally by 3 times of emission limit, i.e., the range of smokemeter be 0～100mg/m3, SO2、NOx's
Range is 0～300mg/m3, accuracy of instrument for range 2%, error is respectively：Flue dust ± 2mg/m3、SO2±6mg/m3、NOx±
6mg/m3。
Due to the limitation of environmentally friendly instrument measurement technology, instrument has the problem of minimum resolution.When measured value is less, by mistake
Difference will be more than elementary error.Standard is (for example,《Fixed pollution source smoke discharge continuous monitor system technical requirements and detection method
(trying)》(HJ/T76-2007) accuracy of an instrument is allowed to be smoke dust discharge concentration≤50mg/m in)3When, the absolute mistake of meansigma methodss
Difference≤15mg/m3；SO2Concentration of emission ＜ 143mg/m3When, the absolute error≤43mg/m of meansigma methodss3；NOxConcentration of emission ＜
103mg/m3When, the absolute error≤31mg/m of meansigma methodss3.It can be seen that, the less time error of measured value affects larger.
Therefore, when in flue gas, pollutant load is in interior variation in a big way, it is difficult to using monitoring method of the prior art
Realize the accurate measurements to pollutant.
The content of the invention
It is an object of the invention to provide a kind of method and apparatus of flue gas monitoring, at least part of to solve above-mentioned technical problem
Solve the above problems.
To achieve these goals, the present invention provides a kind of method of flue gas monitoring, and the method includes：
Receive the flue gas measured value for monitoring, first cigarette respectively from the first flue gas monitoring device and the second flue gas monitoring device
Range of the range of gas monitor less than the second flue gas monitoring device；
The flue gas measured value that monitors is judged as rising edge state or trailing edge state, correspondence is selected according to judged result
Switching threshold；
The flue gas measured value of the first flue gas monitoring device is compared with selected corresponding switching threshold, according to comparing
As a result determine the flue gas measured value of the flue gas measured value or the second flue gas monitoring device that use the first flue gas monitoring device as output.
Preferably, the rising edge state correspondence rising edge switching threshold, the trailing edge state correspondence trailing edge switching
Threshold value；The rising edge switching threshold is more than the trailing edge switching threshold.
Preferably, range of the rising edge switching threshold less than the first flue gas monitoring device.
Preferably, the flue gas measured value or the second flue gas determined according to comparative result using the first flue gas monitoring device
The flue gas measured value of monitor includes as output：When the flue gas measured value of the first flue gas monitoring device is more than corresponding switching threshold
When, the flue gas measured value of the second flue gas monitoring device is selected as output；When the first flue gas monitoring device flue gas measured value be less than or
During equal to corresponding switching threshold, the flue gas measured value of the first flue gas monitoring device is selected as output.
Preferably, methods described also includes：By the flue gas measured value or second of determined the first flue gas monitoring device for using
The flue gas measured value of flue gas monitoring device is exported Jing after oxygen amount tears calculation open.
According to a further aspect in the invention, a kind of device of flue gas monitoring is also disclosed, the device includes：Receiver module,
For receiving the flue gas measured value for monitoring, the first flue gas prison from the first flue gas monitoring device and the second flue gas monitoring device respectively
Survey the range of the range less than the second flue gas monitoring device of device；Judge module, for the flue gas measured value that judges to monitor as rising
Along state or trailing edge state, corresponding switching threshold is selected according to judged result；Processing module, for the first flue gas is supervised
The flue gas measured value for surveying device is compared with selected corresponding switching threshold, is determined using the first flue gas according to comparative result
The flue gas measured value of the flue gas measured value of monitor or the second flue gas monitoring device is used as output.
Preferably, the rising edge state correspondence rising edge switching threshold, the trailing edge state correspondence trailing edge switching
Threshold value；The rising edge switching threshold is more than the trailing edge switching threshold.
Preferably, range of the rising edge switching threshold less than the first flue gas monitoring device.
Preferably, the processing module is used for being more than corresponding switching threshold when the flue gas measured value of the first flue gas monitoring device
When, the flue gas measured value of the second flue gas monitoring device is selected as output；When the first flue gas monitoring device flue gas measured value be less than or
During equal to corresponding switching threshold, the flue gas measured value of the first flue gas monitoring device is selected as output.
Preferably, the processing module is additionally operable to the flue gas measured value of determined the first flue gas monitoring device for using or
The flue gas measured value of two flue gas monitoring devices is exported Jing after oxygen amount tears calculation open.
By above-mentioned technical proposal, the flue gas for monitoring is received respectively from the first flue gas monitoring device and the second flue gas monitoring device
Measured value, the range of the first flue gas monitoring device are less than the range of the second flue gas monitoring device；The flue gas measurement that judgement is monitored
It is worth for rising edge state or trailing edge state, corresponding switching threshold is selected according to judged result；By the first flue gas monitoring device
Flue gas measured value be compared with selected corresponding switching threshold, determined using the first flue gas monitoring according to comparative result
The flue gas measured value of the flue gas measured value of device or the second flue gas monitoring device is used as output；So can make for different situations
With the different flue gas monitoring device of range, and then realize the accurate measurements to flue gas.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of description, with following tool
Body embodiment is used for explaining the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the flow chart of the method for flue gas monitoring according to embodiments of the present invention；
Fig. 2 is the flow chart of the according to embodiments of the present invention switching for carrying out flue gas monitoring device；
Fig. 3 is the schematic diagram of the according to embodiments of the present invention scene for carrying out flue gas monitoring；
Fig. 4 is the according to embodiments of the present invention flow chart processed for the measured value of particulate matter；
Fig. 5 is the according to embodiments of the present invention flow chart processed for the measured value of gaseous contaminant；
Fig. 6 is the schematic diagram of the display interface of the measured value for showing flue gas monitoring in DCS system；And
Fig. 7 is the structure chart of the device of flue gas monitoring according to embodiments of the present invention.
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the present invention, is not limited to the present invention.
Fig. 1 is the flow chart of the method for flue gas monitoring according to embodiments of the present invention, and the method can be used for various monitorings and set
In standby, as shown in figure 1, the method may include following steps.
In step s 110, receive the flue gas measurement for monitoring respectively from the first flue gas monitoring device and the second flue gas monitoring device
Value.Wherein, range of the range of the first flue gas monitoring device less than the second flue gas monitoring device.
For example, the CEMS of the first flue gas monitoring device correspondence small-range, the second flue gas monitoring device correspondence wide range
CEMS, the CEMS of big small-range export the signal of 4～20mA to monitoring device, such as data Collection ＆ Processing System or DCS systems
System (dcs).Monitoring device obtains the flue gas measured value of the CEMS of big small-range.Above-mentioned middle wide range and a small amount of
Journey refers to that the monitoring instrument of different ranges compares, range it is larger for wide range, range is less for small-range.
In the step s 120, the flue gas measured value that monitors is judged as rising edge state or trailing edge state, according to sentencing
Disconnected result selects corresponding switching threshold.
In one embodiment, rising edge state correspondence rising edge switching threshold, trailing edge state correspondence trailing edge switching threshold
Value；Rising edge switching threshold is more than trailing edge switching threshold.
Further, range of the rising edge switching threshold less than the first flue gas monitoring device.For example, rising edge threshold value and decline
Small-range is both less than along threshold value.
In step s 130, the flue gas measured value of the first flue gas monitoring device is carried out with selected corresponding switching threshold
Relatively, determine that the flue gas of flue gas measured value or the second flue gas monitoring device using the first flue gas monitoring device is surveyed according to comparative result
Value is used as output.
In one embodiment, as shown in Fig. 2 the flue gas measured value by the first flue gas monitoring device is corresponding with selected
Switching threshold be compared, according to comparative result determine using the first flue gas monitoring device flue gas measured value or the second flue gas
The flue gas measured value of monitor may include following steps as output.
In step S202, the flue gas measured value of the first flue gas monitoring device is carried out with selected corresponding switching threshold
Relatively.
In step S204, when the flue gas measured value of the first flue gas monitoring device is more than corresponding switching threshold, the is selected
The flue gas measured value of two flue gas monitoring devices is used as output.
In step S206, when the flue gas measured value of the first flue gas monitoring device is less than or equal to corresponding switching threshold,
The flue gas measured value of the first flue gas monitoring device is selected as output.
For example, when the flue gas measured value for monitoring is rising edge state, select using rising edge switching threshold, will
The flue gas measured value of the first flue gas monitoring device is compared with rising edge switching threshold, when the flue gas measured value of the first flue gas monitoring device it is little
In or be equal to rising edge switching threshold when, select the first flue gas monitoring device flue gas measured value as output；When the first flue gas is supervised
When the flue gas measured value of device is surveyed more than rising edge switching threshold, select the flue gas measured value of the second flue gas monitoring device as output.
Thus, realize when the flue gas measured value for monitoring is rising edge state, from the first flue gas monitoring device of small-range to a large amount of
The switching of the second flue gas monitoring device of journey.
When the flue gas measured value for monitoring is trailing edge state, select using trailing edge switching threshold, by the first flue gas
The flue gas measured value of monitor is compared with trailing edge switching threshold, when the flue gas measured value of the first flue gas monitoring device is more than trailing edge
During switching threshold, the flue gas measured value of the second flue gas monitoring device is selected as output；When the flue gas of the first flue gas monitoring device is measured
When value is less than or equal to trailing edge switching threshold, the flue gas measured value of the first flue gas monitoring device is selected as output.Thus, realizing
When the flue gas measured value for monitoring is trailing edge state, from first cigarette of the second flue gas monitoring device of wide range to small-range
The switching of gas monitor.
In one embodiment, in the present invention, method is may also include the flue gas survey of determined the first flue gas monitoring device for using
The flue gas measured value of value or the second flue gas monitoring device is exported Jing after oxygen amount tears calculation open.
By technical scheme in the present invention, the certainty of measurement of different range instrument can be given full play to, reduce measured value less
When error, and the discharge to ultralimit also can accurately be measured and be recorded.
Fig. 3 is the schematic diagram of the according to embodiments of the present invention scene for carrying out flue gas monitoring.Wherein, wrap in particulate matter CEMS
Include with small-range (for example, 0～15mg/m3) the first flue dust monitor and have wide range (for example, 0～100mg/m3)
Second flue dust monitor, gaseous contaminant CEMS is (such as to SO2And NOxThe CEMS being monitored) include with small-range (example
Such as, 0～100mg/m3) the first gaseous contaminant analyser and have wide range (for example, 0～300mg/m3) the second gaseous state
Pollutant analysis instrument.First flue dust monitor, the second flue dust monitor, the first gaseous contaminant analyser, the second gaseous contamination
Thing analyser exports the signal of 4～20mA to DCS system (or, be data Collection ＆ Processing System).
In particle monitoring, rising edge switching threshold is L1Rise, trailing edge switching threshold is L1Decline, L1RiseValue be more than
L1DeclineValue, L1RiseAnd L1DeclineValue be both less than the first flue dust monitor range, such as L1RiseIt is worth for 12mg/m3, L1DeclineValue
For 10mg/m3.In gaseous contaminant monitoring, rising edge switching threshold is L2Rise, trailing edge switching threshold is L2Decline, L2RiseValue
More than L2DeclineValue, L2RiseAnd L2DeclineValue be both less than the first gaseous contaminant analyser range, for example, L2RiseIt is worth and is
80mg/m3, L1DeclineIt is worth for 75mg/m3。
For the measured value of particle monitoring is processed as follows.As shown in figure 4, in step S402, judging
The particulate matter measured value for monitoring is rising edge state or trailing edge state, if rising edge state, execution step S404,
If trailing edge state, execution step S410.In step s 404, the particulate matter measurement for the first flue dust monitor being monitored
Value and L1RiseRelatively, when particulate matter measured value is less than or equal to L1RiseWhen, execution step S406, when particulate matter measured value is more than
L1RiseWhen, execution step S408.In step S406, using the measured value of the first flue dust monitor as output.In step S408
In, using the measured value of the second flue dust monitor as output.In step S410, the granule that the first flue dust monitor is monitored
Thing measured value and L1DeclineRelatively, when particulate matter measured value is more than L1DeclineWhen, execution step S412, when particulate matter measured value be less than or
Equal to L1DeclineWhen, execution step S414.In step S412, using the measured value of the second flue dust monitor as output.In step
In S414, using the measured value of the first flue dust monitor as output.
For the measured value of gaseous contaminant monitoring is processed as follows.As shown in figure 5, in step S502,
The particulate matter measured value that monitors is judged as rising edge state or trailing edge state, if rising edge state, execution step
S504, if trailing edge state, execution step S510.In step S504, the first gaseous contaminant analyser is monitored
Gaseous contaminant measured value and L2RiseRelatively, when gaseous contaminant measured value is less than or equal to L2RiseWhen, execution step S506,
When gaseous contaminant measured value is more than L2RiseWhen, execution step S508.In step S506, by the first gaseous contaminant analyser
Measured value as output.In step S508, using the measured value of the second gaseous contaminant analyser as output.In step
In S510, the gaseous contaminant measured value that the first gaseous contaminant analyser is monitored and L2DeclineRelatively, work as gaseous contaminant
Measured value is more than L2DeclineWhen, execution step S512, when gaseous contaminant measured value is less than or equal to L2DeclineWhen, execution step
S514.In step S512, using the measured value of the second gaseous contaminant analyser as output.In step S514, by first
The measured value of gaseous contaminant analyser is used as output.
The measured value of above-mentioned output can be torn calculation open through oxygen amount and be sent to stationary source monitoring system, can tear calculation open without oxygen amount
Data monitor center is sent to by MODE.
Additionally, be as shown in fig. 6, show small-range measured value, large range measuring value in DCS system respectively, and will be above-mentioned
After process, gained output is shown as preferred measured value.
Above-mentioned example is intended to illustrate technical scheme in the present invention, is not used in and limits the scope of the invention.
Fig. 7 is the structure chart of the device of flue gas monitoring according to embodiments of the present invention, as shown in fig. 7, the device may include
Such as lower module.
Receiver module 710, for receiving the flue gas for monitoring from the first flue gas monitoring device and the second flue gas monitoring device respectively
Measured value, the range of the first flue gas monitoring device are less than the range of the second flue gas monitoring device；
Judge module 720, for the flue gas measured value that judges to monitor as rising edge state or trailing edge state, according to
Judged result selects corresponding switching threshold；
Processing module 730, for by the flue gas measured value of the first flue gas monitoring device and selected corresponding switching threshold
It is compared, the flue gas measured value or the cigarette of the second flue gas monitoring device using the first flue gas monitoring device is determined according to comparative result
Gas measured value is used as output.
In one embodiment, the rising edge state correspondence rising edge switching threshold, the trailing edge state correspondence decline
Along switching threshold；The rising edge switching threshold is more than the trailing edge switching threshold.
Further, range of the rising edge switching threshold less than the first flue gas monitoring device.
In one embodiment, processing module 730 is used for cutting more than corresponding when the flue gas measured value of the first flue gas monitoring device
When changing threshold value, the flue gas measured value of the second flue gas monitoring device is selected as output；When the flue gas measured value of the first flue gas monitoring device
During less than or equal to corresponding switching threshold, the flue gas measured value of the first flue gas monitoring device is selected as output.
In one embodiment, processing module 730 is additionally operable to measure the flue gas of determined the first flue gas monitoring device for using
The flue gas measured value of value or the second flue gas monitoring device is exported Jing after oxygen amount tears calculation open.
Said apparatus are corresponding with preceding method, and specific embodiment is described in detail in can be found in method, is repeated no more.
By technical scheme in the present invention, the certainty of measurement of different range instrument can be given full play to, reduce measured value less
When error, and the discharge to ultralimit also can accurately be measured and be recorded.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, various letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The compound mode of energy is no longer separately illustrated.
Additionally, combination in any between a variety of embodiments of the present invention, can also be carried out, as long as which is without prejudice to this
The thought of invention, which should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of method of flue gas monitoring, the method include：
Receive the flue gas measured value for monitoring, the first flue gas prison respectively from the first flue gas monitoring device and the second flue gas monitoring device
Survey the range of the range less than the second flue gas monitoring device of device；
The flue gas measured value that monitors is judged as rising edge state or trailing edge state, corresponding cutting is selected according to judged result
Change threshold value；
The flue gas measured value of the first flue gas monitoring device is compared with selected corresponding switching threshold, according to comparative result
It is determined that using the first flue gas monitoring device flue gas measured value or the second flue gas monitoring device flue gas measured value as output.
2. method according to claim 1, it is characterised in that the rising edge state correspondence rising edge switching threshold, institute
State trailing edge state correspondence trailing edge switching threshold；
The rising edge switching threshold is more than the trailing edge switching threshold.
3. method according to claim 2, it is characterised in that
Range of the rising edge switching threshold less than the first flue gas monitoring device.
4. method according to claim 1, it is characterised in that described to be determined using the first flue gas monitoring according to comparative result
The flue gas measured value of the flue gas measured value of device or the second flue gas monitoring device includes as output：
When the flue gas measured value of the first flue gas monitoring device is more than corresponding switching threshold, the flue gas of the second flue gas monitoring device is selected
Measured value is used as output；
When the flue gas measured value of the first flue gas monitoring device is less than or equal to corresponding switching threshold, the first flue gas monitoring device is selected
Flue gas measured value as output.
5. method according to claim 1, it is characterised in that methods described also includes：
By the flue gas measured value Jing oxygen of the flue gas measured value or the second flue gas monitoring device of determined the first flue gas monitoring device for using
Amount is exported after tearing calculation open.
6. a kind of device of flue gas monitoring, the device include：
Receiver module, for receiving the flue gas measured value for monitoring from the first flue gas monitoring device and the second flue gas monitoring device respectively,
Range of the range of the first flue gas monitoring device less than the second flue gas monitoring device；
Judge module, for the flue gas measured value that judges to monitor as rising edge state or trailing edge state, according to judging knot
Fruit selects corresponding switching threshold；
Processing module, for the flue gas measured value of the first flue gas monitoring device is compared with selected corresponding switching threshold
Compared with, according to comparative result determine using the first flue gas monitoring device flue gas measured value or the second flue gas monitoring device flue gas measure
Value is used as output.
7. device according to claim 6, it is characterised in that the rising edge state correspondence rising edge switching threshold, institute
State trailing edge state correspondence trailing edge switching threshold；
The rising edge switching threshold is more than the trailing edge switching threshold.
8. device according to claim 7, it is characterised in that
Range of the rising edge switching threshold less than the first flue gas monitoring device.
9. device according to claim 6, it is characterised in that the processing module is used for the cigarette when the first flue gas monitoring device
When gas measured value is more than corresponding switching threshold, the flue gas measured value of the second flue gas monitoring device is selected as output；When the first cigarette
When the flue gas measured value of gas monitor is less than or equal to corresponding switching threshold, the flue gas measured value of the first flue gas monitoring device is selected
As output.
10. device according to claim 6, it is characterised in that the processing module be additionally operable to by it is determined use
The flue gas measured value of the flue gas measured value of one flue gas monitoring device or the second flue gas monitoring device is exported Jing after oxygen amount tears calculation open.
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| CN201610884339.1A CN106526075B (en) | 2016-10-10 | 2016-10-10 | A kind of method and apparatus of flue gas monitoring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133196A (en) * | 2019-05-30 | 2019-08-16 | 国家能源投资集团有限责任公司 | The control method and system of range switching |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141564A (en) * | 2010-12-14 | 2011-08-03 | 河南理工大学 | Automatic detector for analysis speed of coal gas |
| CN102313793A (en) * | 2011-09-07 | 2012-01-11 | 中国环境科学研究院 | Monitoring system of multi-component gas pollutants in air of chemical industrial park |
| CN102590294A (en) * | 2011-01-18 | 2012-07-18 | 长春鼎诚科技有限公司 | Automatic measuring and compensating method for uncompensated resistance in electrochemical system |
| CN203368444U (en) * | 2013-07-16 | 2013-12-25 | 山东蓝孚高能物理技术有限公司 | Multi-range self-protection AD signal acquisition device |
| WO2015198253A1 (en) * | 2014-06-26 | 2015-12-30 | Luca Drocco | Multiple weighing scale |
-
2016
- 2016-10-10 CN CN201610884339.1A patent/CN106526075B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141564A (en) * | 2010-12-14 | 2011-08-03 | 河南理工大学 | Automatic detector for analysis speed of coal gas |
| CN102590294A (en) * | 2011-01-18 | 2012-07-18 | 长春鼎诚科技有限公司 | Automatic measuring and compensating method for uncompensated resistance in electrochemical system |
| CN102313793A (en) * | 2011-09-07 | 2012-01-11 | 中国环境科学研究院 | Monitoring system of multi-component gas pollutants in air of chemical industrial park |
| CN203368444U (en) * | 2013-07-16 | 2013-12-25 | 山东蓝孚高能物理技术有限公司 | Multi-range self-protection AD signal acquisition device |
| WO2015198253A1 (en) * | 2014-06-26 | 2015-12-30 | Luca Drocco | Multiple weighing scale |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133196A (en) * | 2019-05-30 | 2019-08-16 | 国家能源投资集团有限责任公司 | The control method and system of range switching |
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