CN106569465A - Method for DCS to monitor CEMS system in real time - Google Patents
Method for DCS to monitor CEMS system in real time Download PDFInfo
- Publication number
- CN106569465A CN106569465A CN201610915210.2A CN201610915210A CN106569465A CN 106569465 A CN106569465 A CN 106569465A CN 201610915210 A CN201610915210 A CN 201610915210A CN 106569465 A CN106569465 A CN 106569465A
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- Prior art keywords
- dcs
- cems
- time
- monitoring
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41835—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by programme execution
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
A method for a DCS to monitor a CEMS system in real time relates to the power plant technology field. The method comprises CEMS system PLC monitoring and CEMS system computer monitoring. The CEMS system PLC monitoring comprises the following steps of monitoring a real-time entrance pollutant concentration value; carrying out DCS sampling time delay output; subtracting the real-time pollutant concentration value from a time-delay value output by the DCS sampling time delay; determining whether the value is greater than 1 or minus 1; and then carrying out time delay and outputting a PLC fault. The CEMS system computer monitoring comprises the following steps of monitoring the real-time entrance pollutant concentration value; carrying out DCS sampling time delay output; subtracting the real-time pollutant concentration value from the time-delay value output by the DCS sampling time delay; determining whether the value is greater than 1 or minus 1; and then carrying out time delay, and outputting computer and software faults. Under the condition that equipment is not increased, through a control chamber which is operated for 24 hours, a CEMS state can be monitored in real time so that first-time discovery and processing when the system and the equipment have faults are guaranteed.
Description
Technical field：
The present invention relates to it is related to power plant's technical field, the method that specifically DCS monitors in real time CEMS systems.
Background technology：
Independent monitoring systems of the CEMS (pollution sources/flue gas monitoring system) in power plant as one, country, local ring
Protecting goal CEMS control rooms can only individually set up, and not allow to set up monitoring personnel on duty, and regulation CEMS control room to have
Strict discrepancy resignation system.CEMS system equipments can only lean on the regular point of personnel, patrol and examine and could find when breaking down, it is impossible to
Accomplish find in time, process when equipment fault, exception.
The content of the invention：
The technical problem to be solved is to provide a kind of monitoring thinking, realizes Attended mode to unattended
CEMS systems, equipment carry out the method that the DCS of continuous monitoring monitors in real time CEMS systems.
The technical problem of solution adopts following technical scheme：
The method that DCS monitors in real time CEMS systems, it is characterised in that：Including the monitoring of CEMS systems PLC and CEMS systems electricity
Brain is monitored,
Described CEMS systems PLC monitoring includes monitoring entrance pollutant levels instantaneous value, and the output of DCS sampling time delays will
The delay value of DCS sampling time delays output deducts pollutant levels instantaneous value, judges whether more than positive and negative 1, then time delay, output
PLC failures；
The system computerized monitoring of described CEMS includes monitoring outlet pollutant levels instantaneous value, and the output of DCS sampling time delays will
The delay value of DCS sampling time delays output deducts pollutant levels instantaneous value, judges whether more than positive and negative 1, then time delay, output electricity
Brain, software fault.
Described pollutant levels are the concentration of one of which pollutant.
Described pollutant is SO2。
DCS (decentralised control) systems are monitored in real time by the analog data to CEMS systems, computing, in the time of regulation
There is no due change and judge certain corresponding device fails of the system, DCS warning photon boards in the interior data
And alarm, operations staff notifies in time attendant's troubleshooting.
The invention has the beneficial effects as follows：Can be with by running within 24 hours control room on duty in the case of not increase equipment
CEMS situations are monitored in real time, it is ensured that the very first time finds, processes when system, equipment fault.
Description of the drawings：
Fig. 1 is the inventive method schematic flow sheet.
Specific embodiment：
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
As shown in figure 1,
The method that DCS monitors in real time CEMS systems, including the monitoring of CEMS systems PLC and the system computerized monitoring of CEMS,
The monitoring of CEMS systems PLC includes monitoring entrance SO2DCS samplings are prolonged in concentration instantaneous value, DCS sampling time delays output
When the delay value that exports deduct SO2Concentration instantaneous value, judges whether more than positive and negative 1, then time delay exports PLC failures；
The system computerized monitoring of CEMS includes monitoring outlet pollutant levels instantaneous value, and DCS is adopted in the output of DCS sampling time delays
The delay value of sample time delay output deducts pollutant levels instantaneous value, judges whether more than positive and negative 1, then time delay, output computer, soft
Part failure.
Pollutant is SO2。
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement is both fallen within scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (3)
- The method that 1.DCS monitors in real time CEMS systems, it is characterised in that：It is system computerized including the monitoring of CEMS systems PLC and CEMS Monitoring,Described CEMS systems PLC monitoring includes monitoring entrance pollutant levels instantaneous value, and DCS is adopted in the output of DCS sampling time delays The delay value of sample time delay output deducts pollutant levels instantaneous value, judges whether more than positive and negative 1, then time delay, output PLC events Barrier；The system computerized monitoring of described CEMS includes monitoring outlet pollutant levels instantaneous value, DCS sampling time delays output, by DCS The delay value of sampling time delay output deducts pollutant levels instantaneous value, judges whether more than positive and negative 1, then time delay, output computer, Software fault.
- 2. the method that DCS according to claim 1 monitors in real time CEMS systems, it is characterised in that：Described pollutant is dense Spend for the concentration of one of which pollutant.
- 3. the method that DCS according to claim 1 monitors in real time CEMS systems, it is characterised in that：Described pollutant is SO2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915210.2A CN106569465A (en) | 2016-10-20 | 2016-10-20 | Method for DCS to monitor CEMS system in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915210.2A CN106569465A (en) | 2016-10-20 | 2016-10-20 | Method for DCS to monitor CEMS system in real time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106569465A true CN106569465A (en) | 2017-04-19 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610915210.2A Pending CN106569465A (en) | 2016-10-20 | 2016-10-20 | Method for DCS to monitor CEMS system in real time |
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| CN (1) | CN106569465A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109491311A (en) * | 2018-11-13 | 2019-03-19 | 江苏常熟发电有限公司 | A kind of CEMS data transmission failure judgment method |
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