CN103823401B - For the method and apparatus reported to the police in start-stop control system in unit level - Google Patents
For the method and apparatus reported to the police in start-stop control system in unit level Download PDFInfo
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- CN103823401B CN103823401B CN201410079071.5A CN201410079071A CN103823401B CN 103823401 B CN103823401 B CN 103823401B CN 201410079071 A CN201410079071 A CN 201410079071A CN 103823401 B CN103823401 B CN 103823401B
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Abstract
The invention discloses a kind of method and apparatus for reporting to the police in start-stop control system in unit level, wherein, this control system is divided into some breakpoints, and the method comprises determining that unit level meets input condition from start-stop control system；Start to judge successively whether the feedback signal of each breakpoint meets the pre-conditioned of this breakpoint from described unit level from the first breakpoint of start-stop control system, wherein, when meeting pre-conditioned, judge whether fault generation signal to be detected, if fault generation signal being detected, generating alarm signal and make described unit level maintain current state from start-stop control system, if being not detected by fault generation signal, then the feedback signal of next breakpoint being judged；And report to the police according to described alarm signal.The method and system that the application of the invention provides, can improve, at the alarm that breaks down to remind operator and to make described unit level maintain current state from start-stop control system, the safety and reliability that system is run.
Description
Technical field
The present invention relates to monitoring field, be used in unit level from start-stop control system in particular it relates to a kind of
Middle alarm method and device.
Background technology
Unit is from start-stop control system (Automatic Plant Startup and Shutdown System, letter
Claim APS) automatic for unit level start-up course and stopping process are divided into several breakpoints, i.e. function group, from
Move the whole process that unit level starts or shuts down.Raising and the personnel reduction along with GPA degree
The requirement of potentiation, the most day by day improves the demand of APS.The unit of APS is designed in thermoelectricity and combustion engine
More and more.APS is the highest to the requirement of unit automation, it is desirable to omnidistance input is automatically.Including equipment not
Also to put into automatically into " automatically awaiting orders " state during operation, wait equipment just to enter normal mistake after starting
Process control state.But, during breakpoint transmission, if there is the system failure or procedure fault, behaviour
Make personnel cannot learn in time, and unit may proceed to perform next breakpoint, meeting from start-stop control system
Cause more serious fault even accident.
Summary of the invention
It is an object of the invention to provide a kind of side for reporting to the police in start-stop control system in unit level
Method and device, can be at unit level faulty alarm stopping in the breakpoint transmission of start-stop control system
Unit level is from the operation of start-stop control system.
According to an aspect of the invention, it is provided it is a kind of for reporting in start-stop control system in unit level
Alert method, this control system is divided into some breakpoints, and the method comprises determining that unit level is from start and stop control
System processed meets input condition；Start to sentence successively from the first breakpoint of start-stop control system from described unit level
Whether the feedback signal of fixed each breakpoint meets the pre-conditioned of this breakpoint, when meeting pre-conditioned, it is judged that
Fault generation signal whether detected, if fault generation signal being detected, generating alarm signal and making described
Unit level maintains current state from start-stop control system, if being not detected by fault generation signal, the most right
The feedback signal of next breakpoint judges；And report to the police according to described alarm signal.
According to the preferred embodiment of the present invention, affiliated fault can be divided into three ranks, and correspondingly
Generate the alarm signal of three ranks, wherein occur scattered control system fault to be first level fault, send out
Raw measurement signal fault and actuator failure are second level fault and automatic system setting value occur
And controlled variable bigger than normal with measured value or rate of change are more limited to third level fault.
According to the preferred embodiment of the present invention, can carry out judging directly to the feedback signal of next breakpoint
To occurring that feedback signal is unsatisfactory for pre-conditioned breakpoint, and determine that this is unsatisfactory for pre-conditioned breakpoint
Serial number unit level is from the executable maximum step number of start-stop control system breakpoint transmission, and from described unit
Level starts to perform unit level from off control from the executable maximum step number of start-stop control system breakpoint transmission
System breakpoint transmission, wherein, when the feedback signal of all breakpoints be satisfied by respective pre-conditioned time do not hold
The described unit level of row is from start-stop control system breakpoint transmission.
According to the preferred embodiment of the present invention, described unit level can be combustion engine machine from start-stop control system
Group level, from start-stop control system, is disposed with evacuation, waste heat boiler in the startup of this system controls
Startup, combustion engine/steam turbine startup, set grid-connection and five breakpoints of unit load up, wherein, described five
The pre-conditioned of breakpoint can respectively be: vacuum is set up, waste heat boiler temperature and pressure is more than pre-
If value, combustion engine/steam turbine rotating speed reaches 3000 revs/min, unit is the most grid-connected and unit load is more than 25MW.
According to the preferred embodiment of the present invention, described unit level can be combustion engine machine from start-stop control system
Group level, from start-stop control system, can be disposed with unit trip, vapour in the shutdown of this system controls
Bag blowdown, cutoff water pump, close gas baffle and destroy four breakpoints of vacuum, wherein, described four break
The pre-conditioned of point respectively is: unit load down, off-the-line, flame-out, reduction of speed, drum sewage door is opened
Opening certain time, feed pump stops and gas baffle is turned off, and vacuum destroyed.
According to a further aspect of the invention, it is provided that a kind of report to the police in start-stop control system in unit level
Device, wherein this unit level is provided with several breakpoints from start-stop control system, and this device includes: detection
Module, for detecting whether faulty signal；Determination module, is used for determining that unit level is from off control system
System meets input condition, starts to judge successively respectively from the first breakpoint of start-stop control system from described unit level
Whether the feedback signal of breakpoint meets the pre-conditioned of this breakpoint, wherein, when meeting pre-conditioned, if
Fault generation signal detected, generate alarm signal and make described unit level maintain from start-stop control system
Current state, if being not detected by fault generation signal, then sentences the feedback signal of next breakpoint
Disconnected；And alarm module, for reporting to the police according to described alarm signal.
According to the preferred embodiment of the present invention, affiliated fault is divided into three ranks, and correspondingly generates
The alarm signal of three ranks, wherein occurs scattered control system fault to be first level fault, survey
Amount signal fault and actuator failure are second level fault and automatic system setting value and survey occur
Value is bigger than normal is more limited to third level fault with controlled variable or rate of change.
According to the preferred embodiment of the present invention, described device also includes performing module, and this execution module exists
The feedback signal of next breakpoint is carried out judging until occurring that feedback signal is unsatisfactory for by described determination module
Pre-conditioned breakpoint, and determine that this is unsatisfactory for the serial number unit level of pre-conditioned breakpoint from start and stop control
Continue from start-stop control system breakpoint from described unit level during the executable maximum step number of system breakpoint transmission processed
Pass executable maximum step number and start to perform unit level from start-stop control system breakpoint transmission, wherein, work as institute
The feedback signal having breakpoint be satisfied by respective pre-conditioned time do not perform described unit level from off control
System breakpoint transmission.
According to the preferred embodiment of the present invention, wherein said unit level can be combustion from start-stop control system
Machine unit level, from start-stop control system, is disposed with evacuation, waste heat in the startup of this system controls
Boiler startup, combustion engine/steam turbine startup, set grid-connection and five breakpoints of unit load up, wherein, described
The pre-conditioned of five breakpoints can respectively be: vacuum is set up, waste heat boiler temperature and pressure is big
In preset value, combustion engine/steam turbine rotating speed reaches 3000 revs/min, unit is the most grid-connected and unit load is more than
25MW。
According to the preferred embodiment of the present invention, described unit level can be combustion engine machine from start-stop control system
Group level, from start-stop control system, is disposed with unit trip, drum row in the shutdown of this system controls
Dirty, cutoff water pump, close gas baffle and destroy four breakpoints of vacuum, wherein, described four breakpoints
Pre-conditioned can respectively be: unit load down, off-the-line, flame-out, reduction of speed, drum sewage door is opened
Opening certain time, feed pump stops and gas baffle is turned off, and vacuum destroyed.
The method and system being used for reporting to the police in start-stop control system in unit level that the present invention provides, permissible
During breakpoint transmission by each breakpoint judge whether to meet pre-conditioned after then detect
Whether receive fault generation signal at the alarm that breaks down to remind operator, and make described
Unit level maintains current state from start-stop control system, substantially increase system run safety and can
By property.Additionally, the present invention provide for the method reported to the police in start-stop control system in unit level and be
System can also carry out classifying alarm to the fault occurred such that it is able to more effectively makes staff safeguard
Management system, significantly alleviates the working strength of operations staff, improves the automatization level of unit on the whole.
The start and stop making unit are more convenient, safer, more reliable, more long-lived, more flexible, more save time, more energy efficient.
Accompanying drawing explanation
Fig. 1 be according to embodiment of the present invention for the side reported to the police in start-stop control system in unit level
The logic diagram of method；
Fig. 2 is the device reported to the police in start-stop control system in unit level according to embodiment of the present invention
Structural representation；And
Fig. 3 is the dress reported to the police in start-stop control system in unit level according to the preferred embodiment of the present invention
The structural representation put.
Detailed description of the invention
Below with reference to the accompanying drawings the present invention is described in detail.
As it is shown in figure 1, the invention provides a kind of for reporting to the police in start-stop control system in unit level
Method, wherein, this control system is divided into some breakpoints, and the method comprises determining that unit level is from start and stop
Control system meets input condition S21；From described unit level from the first breakpoint of start-stop control system
Judge whether the feedback signal of each breakpoint meets the pre-conditioned S22 of this breakpoint successively, wherein, when meeting
Time pre-conditioned, it may be judged whether fault generation signal S23 detected, if fault generation signal being detected,
Generate alarm signal and make described unit level maintain current state S26 from start-stop control system, if not having
Fault generation signal detected, then carry out judging S24 to the feedback signal of next breakpoint；And according to
Described alarm signal warning (not shown).
Wherein, described alarm signal can include that position, type and design parameter etc. that fault occurs are believed
Breath, operator can determine which breakpoint concrete of described unit, which merit according to described alarm signal
Which equipment that can organize there occurs fault.
Preferably, the method also carries out judgement until there is feedback signal to the feedback signal of next breakpoint
It is unsatisfactory for pre-conditioned breakpoint, and determines that this is unsatisfactory for the serial number unit level of pre-conditioned breakpoint certainly
The executable maximum step number of start-stop control system breakpoint transmission, and from described unit level from off control system
The executable maximum step number of system breakpoint transmission starts to perform unit level from start-stop control system breakpoint transmission
S29, wherein, when the feedback signal of all breakpoints be satisfied by respective pre-conditioned time do not perform described machine
Group level is from start-stop control system breakpoint transmission S28.
Wherein, breakpoint is, according to set control strategy, from start-stop control system, unit level is divided into several
System, each breakpoint not only connects each other but also separate.In the present invention, for the setting of breakpoint, Ying Gen
According to the practical situation of field apparatus, meet the service requirement of each classical control system, thus realize unit
From on off control, it is possible to meet each isolated operation operating mode and the requirement of process operation.Additionally, when described
Unit level, after start-stop control system maintains current state S26, manually can be solved by operator
Fault the startup of recovery system.
Preferably, also may be used for the method reported to the police in start-stop control system in unit level according to the present invention
Affiliated fault to be divided into three ranks, and correspondingly generate the alarm signal of three ranks, wherein occur
Scattered control system fault is first level fault, signal fault and actuator failure occur to measure is the
Two level faults and occur automatic system setting value and measured value bigger than normal and controlled variable or rate of change
More it is limited to third level fault.When unit level breaks down from start stop system, alarm signal is magnanimity letter
Breath, classifying alarm is to help group operator correctly hold major failure reason and make rapidly source
Reason.
According to the preferred embodiment of the present invention, described unit level is combustion engine unit level from start-stop control system
From start-stop control system, in the startup of this system controls, be disposed with evacuation, waste heat boiler starts,
Combustion engine/steam turbine startup, set grid-connection and five breakpoints of unit load up, wherein, described five breakpoints
Pre-conditioned it respectively is: vacuum is set up, waste heat boiler temperature and pressure is more than preset value, combustion engine
/ steam turbine rotating speed reaches 3000 revs/min, unit is the most grid-connected and unit load is more than 25MW.
Such as, have been switched on when unit level puts into button from start-stop control system and meet input condition
Time, it is judged that whether vacuum has built up and unit level is from start-stop control system first step breakpoint ACK button
Whether being pressed, if both of which meets, then determining whether it has received fault generation signal, if not having, then
Next judge whether whether waste heat boiler temperature, pressure are more than predetermined value and the second breakpoint ACK button
It is pressed, if both of which meets, then determining whether it has received fault generation signal, sending out if receiving fault
Raw signal, then unit level stops at current state from start-stop control system and does not runs.
According to the preferred embodiment of the present invention, described unit level is can be with combustion engine machine from start-stop control system
Group level, from start-stop control system, can be disposed with unit trip, vapour in the shutdown of this system controls
Bag blowdown, cutoff water pump, close gas baffle and destroy four breakpoints of vacuum, wherein, described four break
The pre-conditioned of point respectively is: unit load down, off-the-line, flame-out, reduction of speed, drum sewage door is opened
Opening certain time, feed pump stops and gas baffle is turned off, and vacuum destroyed.
As in figure 2 it is shown, according to a further aspect of the invention, it is provided that a kind of in unit level from off control
The device reported to the police in system, wherein this unit level is provided with several breakpoints from start-stop control system, this dress
Put and include: detection module 10, for detecting whether faulty signal；Determination module 20, is used for determining
Unit level meets input condition from start-stop control system, from described unit level from the first of start-stop control system
Breakpoint starts to judge successively whether the feedback signal of each breakpoint meets the pre-conditioned of this breakpoint, wherein, when
When meeting pre-conditioned, if fault generation signal being detected, generating alarm signal and making described unit level certainly
Start-stop control system maintains current state, if being not detected by fault generation signal, then breaks the next one
The feedback signal of point judges；And alarm module 30, for reporting to the police according to described alarm signal.
Wherein, described detection module 10 and described determination module 20 can be integrated with unit level from start and stop
The Logic control module of control system, it is also possible to be single logic circuit or programmable logic controller (PLC).
Described alarm module 30 can be in the display at manipulation center or scene, it is possible to shows institute in real time
State the All Alerts information that alarm signal includes, can be can to remind described in staff with speech form
The speech player of the All Alerts information that alarm signal includes.Described detection module 10, described judgement mould
Can communicate by the way of wired or wireless between block 20 and described alarm module 30.
According to the preferred embodiment of the present invention, affiliated fault can be divided into three ranks, and correspondingly
Generate the alarm signal of three ranks, wherein occur scattered control system fault to be first level fault, send out
Raw measurement signal fault and actuator failure are second level fault and automatic system setting value occur
And controlled variable bigger than normal with measured value or rate of change are more limited to third level fault.
Preferably, as it is shown on figure 3, described device also includes performing module 40, this execution module 40 exists
The feedback signal of next breakpoint is carried out judging until occurring that feedback signal is unsatisfactory for by described determination module
Pre-conditioned breakpoint, and determine that this is unsatisfactory for the serial number unit level of pre-conditioned breakpoint from start and stop control
Continue from start-stop control system breakpoint from described unit level during the executable maximum step number of system breakpoint transmission processed
Pass executable maximum step number and start to perform unit level from start-stop control system breakpoint transmission, wherein, work as institute
The feedback signal having breakpoint be satisfied by respective pre-conditioned time do not perform described unit level from off control
System breakpoint transmission.
According to the preferred embodiment of the present invention, wherein said unit level can be combustion from start-stop control system
Machine unit level, from start-stop control system, is disposed with evacuation, waste heat in the startup of this system controls
Boiler startup, combustion engine/steam turbine startup, set grid-connection and five breakpoints of unit load up, wherein, described
The pre-conditioned of five breakpoints can respectively be: vacuum is set up, waste heat boiler temperature and pressure is big
In preset value, combustion engine/steam turbine rotating speed reaches 3000 revs/min, unit is the most grid-connected and unit load is more than
25MW。
According to the preferred embodiment of the present invention, described unit level can be combustion engine machine from start-stop control system
Group level, from start-stop control system, can be disposed with unit trip, vapour in the shutdown of this system controls
Bag blowdown, cutoff water pump, close gas baffle and destroy four breakpoints of vacuum, wherein, described four break
The pre-conditioned of point respectively is: unit load down, off-the-line, flame-out, reduction of speed, drum sewage door is opened
Opening certain time, feed pump stops and gas baffle is turned off, and vacuum destroyed.
The method and system being used for reporting to the police in start-stop control system in unit level that the present invention provides, permissible
During breakpoint transmission by each breakpoint judge whether to meet pre-conditioned after then detect
Whether receive fault generation signal at the alarm that breaks down to remind operator, and make described
Unit level maintains current state from start-stop control system, substantially increase system run safety and can
By property.Additionally, the present invention provide for the method reported to the police in start-stop control system in unit level and be
System can also carry out classifying alarm to the fault occurred such that it is able to more effectively makes staff safeguard
Management system, significantly alleviates the working strength of operations staff, improves the automatization level of unit on the whole,
Make unit startup and shut down more convenient, safer, more reliable, more long-lived, more flexible, more save time,
More energy efficient.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention does not limit
Detail in above-mentioned embodiment, in the technology concept of the present invention, can be to the present invention
Technical scheme carry out multiple simple variant, these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technology described in above-mentioned detailed description of the invention is special
Levy, in the case of reconcilable, can be combined by any suitable means.In order to avoid need not
The repetition wanted, various possible compound modes are illustrated by the present invention the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as its
Without prejudice to the thought of the present invention, it should be considered as full content disclosed in this invention equally.
Claims (8)
1. for the method reported to the police in start-stop control system in unit level, wherein, this control system
System is divided into some breakpoints, and the method includes:
Determine that unit level meets input condition from start-stop control system；
Start to judge successively the feedback of each breakpoint from described unit level from the first breakpoint of start-stop control system
Whether signal meets the pre-conditioned of this breakpoint,
Wherein, when meeting pre-conditioned, it may be judged whether fault generation signal detected, if event being detected
There is signal in barrier, generates alarm signal and make described unit level maintain current shape from start-stop control system
State, if being not detected by fault generation signal, then the feedback signal to next breakpoint carry out judging until
Occur that feedback signal is unsatisfactory for pre-conditioned breakpoint, and determine that this is unsatisfactory for the sequence of pre-conditioned breakpoint
Number be unit level from the executable maximum step number of start-stop control system breakpoint transmission, and from described unit level
Start to perform unit level from off control system from the executable maximum step number of start-stop control system breakpoint transmission
System breakpoint transmission, wherein, when the feedback signal of all breakpoints be satisfied by respective pre-conditioned time do not perform
Described unit level is from start-stop control system breakpoint transmission；And
Report to the police according to described alarm signal.
Method the most according to claim 1, it is characterised in that affiliated fault is divided into three levels
Not, and correspondingly generating the alarm signal of three ranks, it is first that scattered control system fault wherein occurs
Level faults, generation measure signal fault and actuator failure is second level fault and occurs automatically
Default value and measured value be bigger than normal and controlled variable or rate of change are more limited to third level fault.
Method the most according to claim 1, wherein said unit level is combustion from start-stop control system
Machine unit level, from start-stop control system, is disposed with evacuation, waste heat in the startup of this system controls
Boiler startup, combustion engine/steam turbine startup, set grid-connection and five breakpoints of unit load up, wherein, described
The pre-conditioned of five breakpoints respectively is: vacuum is set up, waste heat boiler temperature and pressure is more than pre-
If value, combustion engine/steam turbine rotating speed reaches 3000 revs/min, unit is the most grid-connected and unit load is more than 25MW.
Method the most according to claim 1, wherein said unit level is combustion from start-stop control system
Machine unit level, from start-stop control system, is disposed with unit trip, vapour in the shutdown of this system controls
Bag blowdown, cutoff water pump, close gas baffle and destroy four breakpoints of vacuum, wherein, described four break
The pre-conditioned of point respectively is: unit load down, off-the-line, flame-out, reduction of speed, drum sewage door is opened
Opening certain time, feed pump stops and gas baffle is turned off, and vacuum destroyed.
5. the device reported to the police in start-stop control system in unit level, wherein this unit level is from start and stop
Set-up of control system has several breakpoints, and this device includes:
Detection module, for detecting whether faulty signal；
Determination module, is used for determining that unit level meets input condition from start-stop control system, from described unit
Level starts to judge whether the feedback signal of each breakpoint meets successively from the first breakpoint of start-stop control system and is somebody's turn to do
Breakpoint pre-conditioned, wherein, when meeting pre-conditioned, if fault generation signal being detected, generates
Alarm signal also makes described unit level maintain current state from start-stop control system, if being not detected by event
There is signal in barrier, then judges the feedback signal of next breakpoint；
Perform module, for carrying out judging to the feedback signal of next breakpoint at described determination module until
Occur that feedback signal is unsatisfactory for pre-conditioned breakpoint, and determine that this is unsatisfactory for the sequence of pre-conditioned breakpoint
When number being unit level maximum step number executable from start-stop control system breakpoint transmission from described unit level from
The executable maximum step number of start-stop control system breakpoint transmission starts to perform unit level from start-stop control system
Breakpoint transmission, wherein, when the feedback signal of all breakpoints be satisfied by respective pre-conditioned time do not perform institute
State unit level from start-stop control system breakpoint transmission；And
Alarm module, for reporting to the police according to described alarm signal.
Device the most according to claim 5, it is characterised in that affiliated fault is divided into three levels
Not, and correspondingly generating the alarm signal of three ranks, it is first that scattered control system fault wherein occurs
Level faults, generation measure signal fault and actuator failure is second level fault and occurs automatically
Default value and measured value be bigger than normal and controlled variable or rate of change are more limited to third level fault.
Device the most according to claim 5, wherein said unit level is combustion from start-stop control system
Machine unit level, from start-stop control system, is disposed with evacuation, waste heat in the startup of this system controls
Boiler startup, combustion engine/steam turbine startup, set grid-connection and five breakpoints of unit load up, wherein, described
The pre-conditioned of five breakpoints respectively is: vacuum is set up, waste heat boiler temperature and pressure is more than pre-
If value, combustion engine/steam turbine rotating speed reaches 3000 revs/min, unit is the most grid-connected and unit load is more than 25MW.
Device the most according to claim 5, wherein said unit level is combustion from start-stop control system
Machine unit level, from start-stop control system, is disposed with unit trip, vapour in the shutdown of this system controls
Bag blowdown, cutoff water pump, close gas baffle and destroy four breakpoints of vacuum, wherein, described four break
The pre-conditioned of point respectively is: unit load down, off-the-line, flame-out, reduction of speed, drum sewage door is opened
Opening certain time, feed pump stops and gas baffle is turned off, and vacuum destroyed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410079071.5A CN103823401B (en) | 2014-03-05 | 2014-03-05 | For the method and apparatus reported to the police in start-stop control system in unit level |
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| CN201410079071.5A CN103823401B (en) | 2014-03-05 | 2014-03-05 | For the method and apparatus reported to the police in start-stop control system in unit level |
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| CN103823401B true CN103823401B (en) | 2016-08-10 |
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| CN104597898B (en) * | 2015-02-03 | 2015-09-09 | 国家电网公司 | The method of fired power generating unit sequence control system automatic rejection fault |
| CN105201810B (en) * | 2015-08-20 | 2017-06-13 | 四川德胜集团钒钛有限公司 | A kind of method of the quick lookup failure based on DCS system |
| CN106708006B (en) * | 2016-11-08 | 2019-06-28 | 北京国电智深控制技术有限公司 | A kind of control method and device of heat collection unit |
| CN107315405B (en) * | 2017-08-28 | 2023-12-12 | 山东中实易通集团有限公司 | Internet-based remote diagnosis system and method for unit self-starting control process |
| CN108170183B (en) * | 2017-12-29 | 2020-06-09 | 凯龙高科技股份有限公司 | Methanol heater controller |
| CN110262217A (en) * | 2019-05-07 | 2019-09-20 | 川田机械制造(上海)有限公司 | It controls the method for equipment start-stop and has the equipment of start-up and shut-down control function |
| CN110593974B (en) * | 2019-10-31 | 2022-05-27 | 大唐郓城发电有限公司 | Automatic start-stop control system of unit |
| CN115109919B (en) * | 2022-06-15 | 2023-09-05 | 山西太钢不锈钢股份有限公司 | Automatic protection method for male and secondary hydraulic pumps of bell-type furnace |
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Address after: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee after: China Shenhua Energy Co.,Ltd. Patentee after: National Energy Group Guohua Power Co.,Ltd. Patentee after: Guoneng Guohua (Beijing) Electric Power Research Institute Co.,Ltd. Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee before: China Shenhua Energy Co.,Ltd. Patentee before: BEIJING GUOHUA POWER Co.,Ltd. Patentee before: Shenhua Guohua (Beijing) Electric Power Research Institute Co.,Ltd. |