CN104932460B - MFT and desulphurization system a kind of signal communication method - Google Patents
MFT and desulphurization system a kind of signal communication method Download PDFInfo
- Publication number
- CN104932460B CN104932460B CN201510213549.3A CN201510213549A CN104932460B CN 104932460 B CN104932460 B CN 104932460B CN 201510213549 A CN201510213549 A CN 201510213549A CN 104932460 B CN104932460 B CN 104932460B
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- China
- Prior art keywords
- mft
- signal
- boiler
- desulfurization system
- boiler desulfurization
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- 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]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Treating Waste Gases (AREA)
Abstract
MFT and desulphurization system a kind of signal communication method, belong to steam power plant field, what MFT was sent to desulphurization system is continuous signal, signal maintains to be transferred to desulphurization system always, MFT reset signals are stopped after manually eliminating failure, mismatched with existing MFT and the signal of boiler desulfurization system can be overcome, it is to avoid the characteristics of MFT sends the defect that desulphurization system after signal is not stopped.
Description
Technical field
The invention belongs to steam power plant field, the signal communication method of more particularly to a kind of MFT and desulphurization system.
Background technology
It is the course of work that the chemical energy of fuel is converted into electric energy, fuel combustion process in thermal power generation corporations
It is to be carried out by boiler, MFT is the abbreviation of the automatic Protection to equipment among boiler operatiopn, when MFT sends alarm signal
Number when, can all receive the signal that MFT is sent with the various equipment of boiler matching, thus be stopped or change work ginseng
Number；At present, in thermal power plant, due to environmental requirement, the sulfur dioxide in boiler emission is reduced, boiler exhaust gas must be carried out
Desulfurization process, having normally run that is increasing a set of desulphurization system and being just allowed to particularly coal-burning boiler；Current desulphurization system
Control system in, it is desirable to input signal be delayed 10 seconds after, just the control system of desulphurization system is stopped, be so in order to
Overcome excessively sensitive desulphurization system frequent shutdown when causing the wrong error signal to input of signal sensitivity and set；And current MFT
What is sent is all the of short duration pulse signal for being no more than 1 second, has been resulted in after MFT sends signal, desulphurization system does not stop
Work, causes the desulphurization system wasting of resources.
The content of the invention
Mismatched for existing MFT and desulphurization system communication signal, cause the problem of MFT is to the failure of desulphurization system,
The present invention proposes a kind of signal communication method of MFT and desulphurization system, it is characterised in that：MFT to desulphurization system send be connect
Continuous signal, signal maintains to be transferred to desulphurization system always, stops MFT reset signals after manually eliminating failure.
Beneficial effect
The beneficial effects of the present invention are can overcome existing MFT and the signal of boiler desulfurization system to mismatch, it is to avoid
MFT sends the defect that desulphurization system after signal is not stopped.
Embodiment
In order to further illustrate technical scheme, the specific embodiment party of the present invention is further illustrated in conjunction with example
Formula, using the MFT systems that the industry is general, the signal that MFT is communicated with boiler desulfurization system produces module and signal output
Module is designed to when MFT alarms, and signal generation module and signal output module export continuous signal to boiler desulfurization system,
Other signals occur and output module function is constant；Using the signal receiving module of the general boiler desulfurization system of the industry, this
Sample is when MFT alarms, the signal output module output continuous signal that MFT is communicated with boiler devulcanizer, boiler desulfurization system letter
Number receiver module is received after the signal that MFT is sent, and is not acted, boiler desulfurization system receives MFT continuous signals more than 10
Second when, the control device of boiler desulfurization system sends instruction, controls whole boiler desulfurization system to be stopped in order, and this
When the signals that are sent to boiler desulfurization system of MFT be lasting, now open boiler desulfurization system, also can be by boiler desulfurization system
Control device handled as fault-signal, and instruct boiler desulfurization system stalls, that is to say, that now boiler desulfurization system
System can not start；Only after boiler failure is excluded, manually MFT is resetted, now MFT stops outwardly sending alarm signal
Number, and the signal that boiler desulfurization system is received stops, and now opens boiler desulfurization system, due to the fault alarm letter without MFT
Number enter, boiler desulfurization system will normally start, and normal work had so both avoided desulfurization when existing MFT sends signal
System is not stopped, and also prevent desulphurization system when boiler has failure and work is activated individually, ensured power plant boiler system
The normal reliable operation of system.
Claims (1)
1. a kind of MFT and desulphurization system signal communication method, it is characterised in that：What MFT was sent to desulphurization system is continuous
Signal, signal maintains to be transferred to desulphurization system always, stops MFT reset signals after manually eliminating failure；When MFT reports
When alert, the signal output module output continuous signal that MFT is communicated with boiler devulcanizer, boiler desulfurization system signal reception mould
Block is received after the signal that MFT is sent, and is not acted, and boiler desulfurization system received MFT continuous signals more than 10 seconds
When, the control device of boiler desulfurization system sends instruction, controls whole boiler desulfurization system to be stopped in order, and now
The signal that MFT is sent to boiler desulfurization system is lasting, now opens boiler desulfurization system, also can be by boiler desulfurization system
Control device handled as fault-signal, and instruct boiler desulfurization system stalls, now boiler desulfurization system be can not
Start；Only after boiler failure is excluded, manually MFT is resetted, now MFT stops outwardly sending alarm signal, and
The signal that boiler desulfurization system is received stops, and boiler desulfurization system is now opened, because the failure alarm signal without MFT enters
Enter, boiler desulfurization system will normally start, normal work, so both avoided desulphurization system when existing MFT sends signal
It is not stopped, also prevent desulphurization system when boiler has failure and work is activated individually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510213549.3A CN104932460B (en) | 2015-04-30 | 2015-04-30 | MFT and desulphurization system a kind of signal communication method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510213549.3A CN104932460B (en) | 2015-04-30 | 2015-04-30 | MFT and desulphurization system a kind of signal communication method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104932460A CN104932460A (en) | 2015-09-23 |
| CN104932460B true CN104932460B (en) | 2017-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510213549.3A Expired - Fee Related CN104932460B (en) | 2015-04-30 | 2015-04-30 | MFT and desulphurization system a kind of signal communication method |
Country Status (1)
| Country | Link |
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| CN (1) | CN104932460B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5419358A (en) * | 1993-08-02 | 1995-05-30 | Francis Myrtil | Gas monitoring system for a boiler |
| CN103280768A (en) * | 2013-05-22 | 2013-09-04 | 珠海兴业绿色建筑科技有限公司 | Arc-control device and arc-control method applied in photovoltaic combiner box |
| CN103499958A (en) * | 2013-09-30 | 2014-01-08 | 中国神华能源股份有限公司 | Method and device for controlling MFT (Main Fuel Trip) |
| CN103676859A (en) * | 2013-12-04 | 2014-03-26 | 国网河南省电力公司安阳供电公司 | Large coal-fired boiler wet-process flue gas desulfurization device control system |
| CN103885397A (en) * | 2013-12-23 | 2014-06-25 | 南宁职业技术学院 | Wet process flue gas desulphurization intelligent monitoring system and method |
-
2015
- 2015-04-30 CN CN201510213549.3A patent/CN104932460B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5419358A (en) * | 1993-08-02 | 1995-05-30 | Francis Myrtil | Gas monitoring system for a boiler |
| CN103280768A (en) * | 2013-05-22 | 2013-09-04 | 珠海兴业绿色建筑科技有限公司 | Arc-control device and arc-control method applied in photovoltaic combiner box |
| CN103499958A (en) * | 2013-09-30 | 2014-01-08 | 中国神华能源股份有限公司 | Method and device for controlling MFT (Main Fuel Trip) |
| CN103676859A (en) * | 2013-12-04 | 2014-03-26 | 国网河南省电力公司安阳供电公司 | Large coal-fired boiler wet-process flue gas desulfurization device control system |
| CN103885397A (en) * | 2013-12-23 | 2014-06-25 | 南宁职业技术学院 | Wet process flue gas desulphurization intelligent monitoring system and method |
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| Publication number | Publication date |
|---|---|
| CN104932460A (en) | 2015-09-23 |
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Granted publication date: 20170711 Termination date: 20200430 |