CN208621961U - A kind of single-row unit of subsidiary engine from start-stop control system - Google Patents
A kind of single-row unit of subsidiary engine from start-stop control system Download PDFInfo
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- CN208621961U CN208621961U CN201821028359.XU CN201821028359U CN208621961U CN 208621961 U CN208621961 U CN 208621961U CN 201821028359 U CN201821028359 U CN 201821028359U CN 208621961 U CN208621961 U CN 208621961U
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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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Abstract
The utility model discloses a kind of subsidiary engine single-row units from start-stop control system, including the single-row unit of subsidiary engine and DCS control system, the DCS control system connect control with the single-row unit of subsidiary engine, the DCS control system includes analog quantity automatic control system, coordinated control system, boiler furnace safety monitoring system, digital electro-hydraulic regulating system for steam turbine, the small steam turbine regulating system of boiler feed pump, turbine by-pass control system, unit sequence control system, Feedwater Whole Process Control System, burner load control system, electrical control system and automatic voltage-regulating system, realize APS function to the manipulation strength and operating pressure for mitigating operations staff in the utility model, improve equipment performance driving economy, it is substantially the sequencing to power plant's operating standard, its application ensure that unit master, the start and stop of subsidiary engine equipment Process strictly observes operating standard, can avoid operations staff's maloperation to greatest extent, it is ensured that unit safety stable operation has great significance.
Description
Technical field
The utility model relates to thermal technics field, specifically a kind of single-row unit of subsidiary engine from start-up and shut-down control system
System.
Background technique
Unit is the control centre that unit starts and stops transport automatically from start-stop control system abbreviation APS, it is by providing
The starting that program is issued to each system/device or order of stopping transport, unit are based on unit DCS control system from start-stop control system
System, plays the role of unit allocation center in the Unit Commitment stage, is each equipment " total activation ", it first will by breakpoint
Shutdown process is divided into several nodes, then issues control instruction or association to equipment by each function (son) group in each node
It adjusts other control system to make predetermined operation, has run through top layer control to final underlying device, thus shape from start-stop control system
At a perfect control grid, to complete to produce and process, but existing unit is in operation, and user is often
Maloperation occurs, leads to device fails, those skilled in the art provide a kind of single-row unit of subsidiary engine from start-up and shut-down control
System, to solve the problems mentioned in the above background technology.
Utility model content
The purpose of this utility model is to provide a kind of single-row units of subsidiary engine from start-stop control system, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of single-row unit of subsidiary engine from start-stop control system, including the single-row unit of subsidiary engine and DCS control system, it is described
DCS control system connect control with the single-row unit of subsidiary engine, and the DCS control system includes analog quantity automatic control system, coordinates
The small steam turbine of control system, boiler furnace safety monitoring system, digital electro-hydraulic regulating system for steam turbine, boiler feed pump adjusts system
System, turbine by-pass control system, unit sequence control system, Feedwater Whole Process Control System, burner load control system, electricity
Gas control system and automatic voltage-regulating system；The analog quantity automatic control system is used to detect the analog quantity of the single-row unit of subsidiary engine
It is compared with the numerical value of original setting, then issues control signal and the single-row unit of subsidiary engine is controlled, so that the single-row machine of subsidiary engine
The analog quantity of group reaches preset range；The boiler furnace safety monitoring system is used to detect the peace of the boiler of the single-row unit of subsidiary engine
Then detection numerical value is transmitted to coordinated control system by full situation；The digital electro-hydraulic regulating system for steam turbine is for adjusting subsidiary engine
The steam turbine of single-row unit it is electro-hydraulic；The small steam turbine regulating system of boiler feed pump is used to control the boiler of the single-row unit of subsidiary engine
Water supply；The turbine by-pass control system is used to control the steam turbine of the single-row unit of subsidiary engine；The unit sequence control system
The single-row unit of subsidiary engine is transmitted to for the boot sequence of each unit of the single-row unit of assembled arrangement subsidiary engine, and control signal；It is described
Feedwater Whole Process Control System is used to carry out water supply regulation to the single-row unit of subsidiary engine；The burner load control system is for detecting
The payload of the burner of the single-row unit of subsidiary engine, and detection signal is transmitted to coordinated control system；The electrical control system uses
In the electric switch of the control single-row unit of subsidiary engine；The automatic voltage-regulating system is used to detect the output electricity of the single-row unit of subsidiary engine
Pressure, and export control signal and the single-row unit of subsidiary engine is controlled, adjust output voltage.
Further, the control of the subsidiary engine single-row unit starting is divided into cold conditions, warm state, hot, very hot four kinds of modes of state, machine
6 stages are arranged in start-up course when group cold conditions, warm state, are respectively as follows: the unit starting preparation stage, cold conditions is rinsed and vacuum establishes rank
Section, ignition of the boiler and temperature rise period, steam turbine red switch stage, set grid-connection stage, load up stage；Unit is hot, very hot state when
3 stages of start-up course are steam turbine red switch stage, set grid-connection stage, load up stage respectively；The single-row unit of subsidiary engine stopped
3 stages are arranged in journey, are respectively as follows: load down stage, unit trip stage, unit outage stage；Only completed in previous stage
Under conditions of, starting next stage is confirmed by provided button, the single-row unit of subsidiary engine can just start next execution stage,
In the implementation procedure in each stage, it is designed with starting, pause and reset button function.
Further, the single-row unit of the subsidiary engine use breakpoint control mode, by the single-row unit starting process of subsidiary engine according to
Set control strategy is divided into several stages to complete, and the execution in each stage, which is both needed to artificially confirm, to be started.
Further, feed pump, air-introduced machine, pressure fan, the primary air fan of the single-row unit of the subsidiary engine are 100% capacity
Single subsidiary engine configuration.
Further, the wind and smoke functional group includes air duct, air-introduced machine and pressure fan, there are two air duct is arranged altogether, two
The inside in air duct is separately installed with air-introduced machine and pressure fan.
Further, the feeding water function group includes water tank, feed pump and feed pipe, and the inside of water tank is equipped with water supply
Pump, the water outlet of feed pump is provided with feed pipe.
Further, the single-row unit of the subsidiary engine uses pyramid structure, and be provided with three layers altogether: first layer is subsidiary engine list
Column unit master control operational administrative layer selects start-up mode to be also off for selecting and judging whether the single-row unit of subsidiary engine puts into
Which breakpoint is mode select and judge that the breakpoint allows carry out condition whether true；The second layer is functional group management level, including defeated
Enter signal and output signal；Third layer is function subgroup management level, for realizing equipment one by one according to scheduled operation order
Start and stop and control, in implementation procedure, functional group display operation sequence, current step number, executes time and functional group control at equipment state
Mode information processed.
Compared with prior art, the utility model has the beneficial effects that the design of the single-row configuration of Thermal generation unit subsidiary engine
Scheme improve equipment performance driving economy, aspect of reducing investment outlay has biggish advantage, with technology and subsidiary engine manufacture level
It improves, the availability of subsidiary engine is higher and higher, technical support is provided using the single-row arrangement of subsidiary engine for unit, to improve unit operation
Economy reduces investment outlay and provides new approach, and the unit of the single-row arrangement of subsidiary engine realizes APS function, and there is presently no precedents, real
Existing APS function is substantially the sequencing to power plant's operating standard to the manipulation strength and operating pressure that mitigate operations staff, it
Application ensure that the shutdown process of the main and auxiliary machine equipment of unit strictly observes operating standard, can avoid running to greatest extent
Personnel misoperation, it is ensured that unit safety stable operation has great significance.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram from start-stop control system of the single-row unit of subsidiary engine.
Fig. 2 is a kind of single-row unit APS design drawing of the subsidiary engine from start-stop control system of the single-row unit of subsidiary engine.
Fig. 3 is the wind and smoke function and feeding water function structural schematic diagram from start-stop control system of a kind of single-row unit of subsidiary engine.
Fig. 4 is a kind of structural schematic diagram from start-stop control system APS control system overall structure of the single-row unit of subsidiary engine.
Specific embodiment
Please refer to Fig. 1~4, in the utility model embodiment, a kind of single-row unit of subsidiary engine from start-stop control system, including
Analog quantity automatic control system (MCS), coordinated control system (CCS), boiler furnace safety monitoring system (FSSS), steam turbine number
The small steam turbine regulating system (MEH) of word electro-hydraulic control system (DEH), boiler feed pump, turbine by-pass control system (BPC), machine
Group sequence control system (SCS), Feedwater Whole Process Control System, burner load control system and other control systems are (as electrically
Control system ECS, automatic voltage-regulating system AVR etc.).
The design of the single-row unit APS of subsidiary engine uses pyramid structure, which is provided with three layers altogether: first layer is
APS master control operational administrative layer it acts as selection and judges whether APS puts into, and is selection start-up mode or stop mode, choosing
It selects which breakpoint and judges that the breakpoint allows carry out condition whether true；The second layer is functional group management level, logical design packet
Include input signal and output signal, such as wind and smoke functional group and feeding water function group etc.；Third layer is function subgroup management level, is
The composition core content of APS, i.e., realize the start and stop and control of equipment one by one according to scheduled operation order, in implementation procedure, function
Display operation sequence can be organized, equipment state, current step number, execute the information such as time, functional group control mode, the design is convenient for fortune
Administrative staff monitors executive condition.
The single-row unit APS of subsidiary engine uses breakpoint control mode, and breakpoint mode is by APS start-up course according to set control
Strategy is divided into several stages to complete, and the execution in each stage, which is both needed to artificially confirm, to be started, the breakpoint control mode, respectively
Stage had not only connected each other independently of each other, as long as condition meets, each stage can be independently executed, which is suitble to fired power generating unit more
The method of operation of sample meets the technique requirement of power plant's production process.
Feed pump, air-introduced machine, pressure fan, the primary air fan of the single-row unit of subsidiary engine are the configuration of 100% capacity list subsidiary engine, auxiliary
The single-row unit of machine is from the start-up course of start-stop control system, and without simultaneously blower and the control process pumped, control logic simply may be used
It leans on, starting step sequence is relatively fewer, which is conducive to smoothly complete start-up course.
Wind and smoke functional group includes air duct, air-introduced machine and pressure fan, there are two air duct is arranged altogether, the inside difference in two air ducts
Air-introduced machine and pressure fan are installed.
Feeding water function group includes water tank, feed pump and feed pipe, and the inside of water tank is equipped with feed pump, the water outlet of feed pump
End is provided with feed pipe.
The single-row unit APS of subsidiary engine realizes its function based on unit DCS control system, by unified and standard interface with
The first floor system of DCS is seamlessly connected.These first floor systems include: analog quantity automatic control system (MCS), coordinated control system
Unite (CCS), boiler furnace safety monitoring system (FSSS), digital electro-hydraulic regulating system for steam turbine (DEH), the small vapour of boiler feed pump
Machine regulating system (MEH), turbine by-pass control system (BPC), unit sequence control system (SCS), electric control system
(ECS) etc..
The single-row unit APS start-up course starting point of subsidiary engine since the starting circulation of unit starting preparation stage, according to
Each auxiliary system of secondary or parallel starting.In all range feedwater automatic control, the systems such as APS and MEH, SCS are mutually coordinated, automatic complete
At the starting of separate unit small turbine, boiler water filling, the switching of small turbine vapour source, the main bypass changeover of water supply etc., with meet whole process to
Water automatic control function.In air and flue system start-up course, APS calls wind and smoke functional group, is sequentially completed separate unit air-introduced machine, air-supply
The starting of machine, primary air fan, and by with MCS system cooperation investment furnace pressure, air-supply air quantity, primary air pressure it is automatic
It adjusts.The start-up course of other systems is not listed one by one, and the terminal of start-up course puts into feeder to unit band 175MW load
Automated management system sets 350MW load, exits from start-up and shut-down control start-up mode.APS system stops control and currently bears from unit
Lotus starts load shedding, and to throwing, turbine barring gear terminates, air and flue system is stopped transport.After the completion of 6th stage of start-up course, unit is opened
Dynamic to be completed, unit load is controlled by CCS system, and APS is exited.Unit load rises to the setting value of operator or by dispatching of power netwoks
(AGC) value setting mode provided, coordinated control system (CCS) require to be automatically activated feeder system according to load instruction,
Adapt to different burden requirements.
Unit is completed from start-stop control system by following system coordination: analog quantity automatic control system (MCS), coordinated control
System (CCS), boiler furnace safety monitoring system (FSSS), digital electro-hydraulic regulating system for steam turbine (DEH), boiler feed pump are small
Steam turbine regulating system (MEH), turbine by-pass control system (BPC), unit sequence control system (SCS), feedwater full process control
System, burner load control system and other control systems (such as electric control system ECS, automatic voltage-regulating system AVR
Deng), finally to realize the automatic starting or automatic stoppage in transit of generating set.
The design scheme of the single-row configuration of Thermal generation unit subsidiary engine has in terms of improving equipment performance driving economy, reducing investment outlay
Biggish advantage.With the raising of technology and subsidiary engine manufacture level, the availability of subsidiary engine is higher and higher, uses subsidiary engine for unit
Single-row arrangement provides technical support, to improve unit performance driving economy, reduces investment outlay and provides new approach.The single-row cloth of subsidiary engine
The unit set realizes that APS function there is presently no precedent, realizes that APS function presses the manipulation strength and work that mitigate operations staff
Power reduces maloperation, it is ensured that unit safety stable operation has great significance.
The working principle of the utility model is: firstly, the single-row unit APS start-up course starting point of subsidiary engine prepares from unit starting
The starting circulation in stage starts, successively or each auxiliary system of parallel starting, in all range feedwater automatic control, APS with
The systems such as MEH, SCS are mutually coordinated, be automatically performed the starting of separate unit small turbine, boiler water filling, the switching of small turbine vapour source, to
Main bypass changeover of water etc., to meet full-process feed water automatic control function, in air and flue system start-up course, APS calls wind and smoke function
Energy group is sequentially completed the starting of separate unit air-introduced machine, pressure fan, primary air fan, and the cooperation passed through with MCS system puts into burner hearth pressure
The start-up course of the automatic adjustment of power, air-supply air quantity, primary air pressure, other systems is not listed one by one, the terminal of start-up course
To unit band 175MW load, feeder automated management system is put into, 350MW load is set, exits from start-up and shut-down control and starts mould
Formula, APS system stops control, and load shedding to throwing turbine barring gear terminates since unit current loads, air and flue system is stopped transport, starting
After the completion of 6th stage of process, the starting of unit is completed, and unit load is controlled by CCS system, and APS is exited, unit load
The value setting mode for rising to the setting value of operator or being provided by dispatching of power netwoks (AGC), coordinated control system (CCS) is according to load
Instruction requires to be automatically activated feeder system, adapts to different burden requirements.
Claims (5)
1. a kind of single-row unit of subsidiary engine from start-stop control system, which is characterized in that including the single-row unit of subsidiary engine and DCS control system
System, the DCS control system connect control with the single-row unit of subsidiary engine, and the DCS control system includes that analog quantity automatically controls system
System, coordinated control system, boiler furnace safety monitoring system, digital electro-hydraulic regulating system for steam turbine, the small steam turbine of boiler feed pump
Regulating system, turbine by-pass control system, unit sequence control system, Feedwater Whole Process Control System, burner load control system
System, electrical control system and automatic voltage-regulating system；The analog quantity automatic control system is for detecting the single-row unit of subsidiary engine
Analog quantity with original setting numerical value be compared, then issue control signal the single-row unit of subsidiary engine is controlled so that auxiliary
The analog quantity of the single-row unit of machine reaches preset range；The boiler furnace safety monitoring system is for detecting the single-row unit of subsidiary engine
Then detection numerical value is transmitted to coordinated control system by the security situation of boiler；The digital electro-hydraulic regulating system for steam turbine is used for
Adjust the electro-hydraulic of the steam turbine of the single-row unit of subsidiary engine；The small steam turbine regulating system of boiler feed pump is for controlling the single-row machine of subsidiary engine
The boiler feedwater of group；The turbine by-pass control system is used to control the steam turbine of the single-row unit of subsidiary engine；The unit sequence
Control system is used for the boot sequence of each unit of the single-row unit of assembled arrangement subsidiary engine, and control signal is transmitted to the single-row machine of subsidiary engine
Group；The Feedwater Whole Process Control System is used to carry out water supply regulation to the single-row unit of subsidiary engine；The burner load control system
Coordinated control system is transmitted to for detecting the payload of the burner of the single-row unit of subsidiary engine, and detection signal；It is described electrical
Control is the electric switch for controlling the single-row unit of subsidiary engine；The automatic voltage-regulating system is for detecting the single-row unit of subsidiary engine
Output voltage, and export control signal the single-row unit of subsidiary engine is controlled, adjust output voltage.
2. the single-row unit of a kind of subsidiary engine according to claim 1 from start-stop control system, which is characterized in that the subsidiary engine
The control of single-row unit starting is divided into cold conditions, warm state, hot, very hot four kinds of modes of state, and start-up course is arranged when unit cold conditions, warm state
6 stages are respectively as follows: unit starting preparation stage, cold conditions flushing and vacuum establishment stage, ignition of the boiler and temperature rise period, vapour
Machine red switch stage, set grid-connection stage, load up stage；Unit is hot, very hot state when 3 stages of start-up course, be vapour respectively
Machine red switch stage, set grid-connection stage, load up stage；3 stages are arranged in the single-row unit stopped process of subsidiary engine, are respectively as follows: drop
Load stage, unit trip stage, unit outage stage；Only under conditions of completing previous stage, pressed by provided
Button confirmation starting next stage, the single-row unit of subsidiary engine can just start next execution stage, in the implementation procedure in each stage,
Design has starting, pause and reset button function.
3. the single-row unit of a kind of subsidiary engine according to claim 1 from start-stop control system, which is characterized in that the subsidiary engine
Single-row unit uses breakpoint control mode, and the single-row unit starting process of subsidiary engine is divided into several ranks according to set control strategy
Section is completed, and the execution in each stage, which is both needed to artificially confirm, to be started.
4. the single-row unit of a kind of subsidiary engine according to claim 1 from start-stop control system, which is characterized in that the subsidiary engine
Feed pump, air-introduced machine, pressure fan, the primary air fan of single-row unit are the configuration of 100% capacity list subsidiary engine.
5. the single-row unit of a kind of subsidiary engine according to claim 1 from start-stop control system, which is characterized in that the subsidiary engine
Single-row unit uses pyramid structure, and be provided with three layers altogether: first layer is the single-row unit master control operational administrative layer of subsidiary engine, is used for
It selects and judges whether the single-row unit of subsidiary engine puts into, select start-up mode or stop mode, select which breakpoint and judgement should
Whether breakpoint allows carry out condition true；The second layer is functional group management level, including input signal and output signal；Third layer is
Function subgroup management level, for realizing the start and stop and control of equipment one by one according to scheduled operation order, in implementation procedure, function
Group display operation sequence, current step number, executes time and functional group control mode information at equipment state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821028359.XU CN208621961U (en) | 2018-06-30 | 2018-06-30 | A kind of single-row unit of subsidiary engine from start-stop control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821028359.XU CN208621961U (en) | 2018-06-30 | 2018-06-30 | A kind of single-row unit of subsidiary engine from start-stop control system |
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| CN208621961U true CN208621961U (en) | 2019-03-19 |
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ID=65704204
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| CN201821028359.XU Active CN208621961U (en) | 2018-06-30 | 2018-06-30 | A kind of single-row unit of subsidiary engine from start-stop control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108536110A (en) * | 2018-06-30 | 2018-09-14 | 神华国华广投（柳州）发电有限责任公司 | A kind of single-row unit of subsidiary engine from start-stop control system |
| CN110716447A (en) * | 2019-09-26 | 2020-01-21 | 无锡利信能源科技有限公司 | Method for realizing large interlocking test function group configuration based on Ovation GB assembly language |
-
2018
- 2018-06-30 CN CN201821028359.XU patent/CN208621961U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108536110A (en) * | 2018-06-30 | 2018-09-14 | 神华国华广投（柳州）发电有限责任公司 | A kind of single-row unit of subsidiary engine from start-stop control system |
| CN108536110B (en) * | 2018-06-30 | 2024-02-20 | 国能广投柳州发电有限公司 | Automatic start-stop control system of auxiliary unit single-row unit |
| CN110716447A (en) * | 2019-09-26 | 2020-01-21 | 无锡利信能源科技有限公司 | Method for realizing large interlocking test function group configuration based on Ovation GB assembly language |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 545600 No. 168, Jianzhong West, Luzhai County, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee after: Guoneng guangtou Liuzhou Power Generation Co.,Ltd. Address before: 545600 No. 168, Jianzhong West, Luzhai County, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee before: SHENHUA GUOHUA GUANGTOU (LIUZHOU) POWER GENERATION Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |