CN205402656U - Based on PLC and FCS boiler soda control system - Google Patents
Based on PLC and FCS boiler soda control system Download PDFInfo
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- CN205402656U CN205402656U CN201620131596.3U CN201620131596U CN205402656U CN 205402656 U CN205402656 U CN 205402656U CN 201620131596 U CN201620131596 U CN 201620131596U CN 205402656 U CN205402656 U CN 205402656U
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Abstract
The utility model relates to a based on PLC and FCS boiler soda control system, including boiler soda operation monitoring system, the control system that boiler soda operation monitoring system combined together for PLC and FCS, this boiler soda operation monitoring system include bottom to 3 layer structures of top layer, and the bottom be the field device layer, and middle for controlling layer, the superiors are central dispatching management layer. This is novel simple relatively to present partial boiler soda control system, the drawback that reliability and optimal control performance are not enough, a boiler soda control system who combines together based on PLC and FCS has been designed, configuration through PLC and FCS combine together is programmed, good man -machine interface has been found, control information's reliable transmission and boiler steam and water circuit real -time has been realized, the developments control, the boiler steam and water circuit reliability of operation has been improved, the operations and maintenance convenience, concentrating and distributed control of heating boiler steam -water system has effectively been realized.
Description
Technical field
This utility model belongs to equipment and controls technical field, particularly relates to a kind of based on PLC and FCS boiler vapour water control system.
Background technology
Certain existing coal-burning boiler in chemical fibre factory of city, except the process steam undertaking this factory, the steam supply work of several units near also assume responsibility for, the drawbacks such as this factory original boiler vapour water control system exists that to control function relatively easy, and reliability is relatively low and optimal control performance is not enough.The technological transformation carried out more thoroughly for 2010.Use based on programmable controller PLC programmablelogiccontroller) and field bus control system FCS fieldbuscontrolsystem technology, the vapour water control system of upgrading Liao Mou city chemical fibre factory's coal-burning boiler.
General boiler steam and water circuit can be divided into by function: these functional subsystems of boiler circuit, air and flue system, combustion system, pressure and temperature reducing and synergic system；Wherein boiler steam and water circuit vapour water control system is the core of boiler steam and water circuit, boiler drum level height control is 1 key factor that boiler steam and water circuit soda pop controls system monitoring, and various control algolithms and the research work of boiler vapour water control system launch mainly around this key factor.
Guarantee that boiler water level is relatively stable within the specific limits, be the essential condition of boiler operatiopn.Boiler feed capacity determines boiler water level, in operation, regulates boiler feed capacity according to the change of boiler water level.During boiler operatiopn, water level is too low, can cause dry pot and burn out water-cooling wall；Water level is too high, saturated steam with moisture can be caused to sharply increase, affect quality of steam, likely injure the safe operation of steam turbine time serious.Feed pressure and drum pressure are the principal elements determining boiler water level.
Utility model content
To control system control function relatively easy in order to solve original boiler soda pop for this utility model, reliability is relatively low and optimal control performance is not enough technical problem and provide a kind of based on PLC and FCS boiler vapour water control system.
This utility model is adopted the technical scheme that by the technical problem solving to exist in known technology:
A kind of based on PLC and FCS boiler vapour water control system, including boiler soda pop operation monitoring system, described boiler soda pop operation monitoring system is PLC and the FCS control system combined, this boiler soda pop operation monitoring system includes the bottom 3-tier architecture to top layer, bottom is scene equipment level, centre is key-course, management and running layer centered by the superiors；Described scene equipment level includes current sensor, temperature sensor, level sensor, flow transducer, pressure transducer and terminal resistance；Described key-course includes for monitoring and gather the PLC1 control sub-station of boiler electric current, water level, temperature, steam pressure and steam flow parameter, PLC2 control sub-station, PLC3 control sub-station and PLC4 control main website；Described central dispatching management level include Central Control Room industrial computer；All electrically connect with PLC1 control sub-station, PLC2 control sub-station, PLC3 control sub-station after described current sensor, temperature sensor, level sensor, flow transducer, pressure transducer and terminal resistance are parallel with one another, after described PLC1 control sub-station, PLC2 control sub-station, PLC3 control sub-station parallel connection, control main website electrical connection in PLC4；Described PLC4 controls main website and electrically connects with equipped with Central Control Room industrial computer；Equipped with hydrostatic testing device 1 configuration software on the industrial computer that described Central Control Room is equipped with, in order to realize the configuration programming to each control function.
Further, described PLC1 control sub-station, PLC2 control sub-station, PLC3 control sub-station and PLC4 control main website and are provided with neural network prediction device, optimal controller and feedback compensation device；nullNeural network prediction device includes the harvester of boiler water level signal、The harvester of feed pressure signal and the harvester of drum pressure signal and nerve network controller form，The harvester of boiler water level signal、The harvester of feed pressure signal and the harvester of drum pressure signal are connected with nerve network controller by the signal gathered，Neural network prediction device is connected with optimal controller，Optimal controller connects feedback compensation device，Various collection signals are aggregated into nerve network controller，Computing is carried out by the performance indications mathematical model of optimal controller，Prediction，Obtain optimum control increment Delta Q t+j-1 in permissible range，J=0，1，2，…，Applying controlled quentity controlled variable Q=[the Q t of m and correspondence，Q t+1，…，Q t+m-1]，And constantly by the sampling of neural network prediction and refreshing，Thus obtaining the optimal control of the best，Feedback compensation device mainly includes steam pressure、The collecting part of the signals such as combustion chamber draft，Feed back to feedback controller to go to control fire grate by recurrent neural network、Air-introduced machine、The rotating speed etc. of aerator，Thus controlling fuel quantity、Air output、Absorbing quantity etc.，Realize the dynamic control to combustion chamber draft and boiler water level.
Further, described PLC1 control sub-station, PLC2 control sub-station, PLC3 control sub-station DeviceNet unit are equipped with DeviceNet interface and current sensor, temperature sensor, level sensor, flow transducer, pressure transducer and the terminal resistance that individually signal cable special line detects with presence states parameter amount connects.
Further, described water injecting pump, soda pop bag, Draw off valve, user's steam valve are also included based on PLC and FCS boiler vapour water control system；Described water injecting pump is connected with soda pop bag by pipeline with the electrical connection of Central Control Room industrial computer simultaneously, and Draw off valve, user's steam valve soda pop all bag is connected by pipeline.
Further, described temperature sensor, level sensor, flow transducer, pressure transducer are arranged at soda pop and wrap.
Further, described Central Control Room industrial computer includes display steam water-level height, drum internal gas pressure, steam flow, vapor (steam) temperature in a flowchart, by the color of graphical symbol, Parameters variation and flashing mode, the boiler steam and water circuit of the running status of Dynamic Announce boiler monitors main interface.
Further, described Central Control Room industrial computer also includes the parameter in each control loop carrying out on-line amending or control loop carrying out keyboard or the mouse of manual/auto switching.
Further, described also including alarm device based on PLC and FCS boiler vapour water control system, alarm device includes warning window and alarm bell and electrically connects with Central Control Room industrial computer.
This utility model achieves the control function real-time, dynamic of central heating boiler boiler circuit, and system has features such as total digitalization, dispersion, opening, transmitted in both directions and multiple-limb, and install, maintenance cost relatively low
In order to better whole boiler soda pop production process be monitored, analyzes and operate, this control system adopts hydrostatic testing device 1 to carry out configuration, by to the repeatedly debugging of certain chemical fibre factory of city boiler automatic control system, improvement, generating the dynamic flow pictures such as the boiler soda pop monitoring main interface of system monitoring, boiler soda pop operant skill checking system picture, alarm screen, real-time tendency and historical trend panel altogether.Thus, producing automatic control process and be able to effective realization, production efficiency significantly improves, and energy-saving effect is notable.
Boiler steam and water circuit monitors main interface: in a flowchart, and by the modes such as the color of graphical symbol, Parameters variation and flicker, the running status of Dynamic Announce boiler, operator can pass through this objective interface and read each technological parameter during boiler soda pop produces.Including steam water-level height, drum internal gas pressure, steam flow, vapor (steam) temperature etc..
Examination parameter list: the title that each technological parameter of system production process is corresponding can synchronize to show in real time in a tabular form, and the main running state parameter of system is listed in a tabular form in checking system, convenient conclusion, summary and contrast.Also dependent on needing to inquire about the data sheet on corresponding date, production operation personnel are facilitated data to be arranged and analyzes, the favourable production efficiency improving boiler.
Operation control picture: system respectively controls the production run state in loop and relevant parameter shows with the form of regulating rod figure.Operator can utilize keyboard or mouse easily the parameter in each control loop to be carried out on-line amending.Also can carry out manual/auto switching to controlling loop, it is achieved corresponding operating simultaneously.
Trend picture: for recording real-time tendency curve picture and the historical text picture of system main production parameter, diagram picture is a certain order of classes or grades at school 1# boiler real-time tendency curve picture, this picture is followed successively by output change curve from top to bottom, leaving water temperature change curve, steam flow change curve, real-time change plot against time parameter desirable 1 on duty, 5, 7 time periods such as 15min, real-time tendency curve picture is used for reflecting the curve picture of boiler operating parameter changing tendency at short notice, operator can adjust relevant control parameter in time according to parameter variation tendency, boiler is made to be in optimum working state, thus improving production efficiency；Historical text picture is used for reflecting that the data variation of a class or some day, operator can be understood in certain time the stability of associated control parameters in time and become to becoming characteristic according to parameter variation tendency.
Warning window and alarm bell: system is in operation because of the alarm signal of fault generation, all will show in the warning window hurdle below picture, the date and time that record warning simultaneously produces.
Based on PLC and the FCS central heating boiler vapour water control system combined, both make use of PLC reliability height, capacity of resisting disturbance is strong, be prone to networking and be applicable to the feature of industry spot, make use of again the full digital signal of FCS to transmit, field device can conveniently carry out the feature of remotely diagnosis, maintenance and configuration.Certain chemical fibre factory of city 75t/h coal-burning boiler vapour water control system shows through improved operation result, and improved system coal fuel heating efficiency is brought up to 90.57% by 86.31%, improves 4.26%；In flying dust, the phosphorus content of combustible is dropped to 7.87% by 11.48% before transforming, and have dropped 3.61%；Workman's number on duty is dropped to 13 people by per tour 27 people, and per tour reduces personnel 14 people, greatly reduces the labor intensity of workman simultaneously.Improved system not only has good a, feature that intelligence degree is high highly reliable, visual, and has the good result of personnel reduction and enlargement, has good application prospect in similar central heating boiler boiler circuit is transformed.
Accompanying drawing explanation
Fig. 1 is the boiler soda pop operation monitoring system overall construction drawing that this utility model embodiment provides；
Fig. 2 is the network response surface structured flowchart that this utility model embodiment provides；
Fig. 3 is the boiler steam and water circuit process chart that this utility model embodiment provides；
Fig. 4 is the boiler steam and water circuit control flow block diagram that this utility model embodiment provides；
Fig. 5 is the boiler attendance skill examination system that this utility model embodiment provides；
Fig. 6 is the boiler steam and water circuit optimal control trend curve that this utility model embodiment provides.
Detailed description of the invention
For summary of the invention of the present utility model, feature and effect can be further appreciated that, hereby enumerate following example, and it is as follows to coordinate accompanying drawing to describe in detail.
Refer to shown in Fig. 1:
As shown in Figure 1: a kind of based on PLC and FCS boiler vapour water control system, including boiler soda pop operation monitoring system, described boiler soda pop operation monitoring system is PLC and the FCS control system combined, this boiler soda pop operation monitoring system includes the bottom 3-tier architecture to top layer, bottom is scene equipment level, centre is key-course, management and running layer centered by the superiors；Described scene equipment level includes current sensor, temperature sensor, level sensor, flow transducer, pressure transducer and terminal resistance；Described key-course includes for monitoring and gather the PLC1 control sub-station of boiler electric current, water level, temperature, steam pressure and steam flow parameter, PLC2 control sub-station, PLC3 control sub-station and PLC4 control main website；Described central dispatching management level include Central Control Room industrial computer；All electrically connect with PLC1 control sub-station, PLC2 control sub-station, PLC3 control sub-station after described current sensor, temperature sensor, level sensor, flow transducer, pressure transducer and terminal resistance are parallel with one another, after described PLC1 control sub-station, PLC2 control sub-station, PLC3 control sub-station parallel connection, control main website electrical connection in PLC4；Described PLC4 controls main website and electrically connects with equipped with Central Control Room industrial computer；Equipped with hydrostatic testing device 1 configuration software on the industrial computer that described Central Control Room is equipped with, in order to realize the configuration programming to each control function.
Further, described PLC1 control sub-station, PLC2 control sub-station, PLC3 control sub-station and PLC4 control main website and are provided with neural network prediction device, optimal controller and feedback compensation device；nullNeural network prediction device includes the harvester of boiler water level signal、The harvester of feed pressure signal and the harvester of drum pressure signal and nerve network controller form，The harvester of boiler water level signal、The harvester of feed pressure signal and the harvester of drum pressure signal are connected with nerve network controller by the signal gathered，Neural network prediction device is connected with optimal controller，Optimal controller connects feedback compensation device，Various collection signals are aggregated into nerve network controller，Computing is carried out by the performance indications mathematical model of optimal controller，Prediction，Obtain optimum control increment Delta Q t+j-1 in permissible range，J=0，1，2，…，Applying controlled quentity controlled variable Q=[the Q t of m and correspondence，Q t+1，…，Q t+m-1]，And constantly by the sampling of neural network prediction and refreshing，Thus obtaining the optimal control of the best.Feedback compensation device mainly includes the collecting part of the signal such as steam pressure, combustion chamber draft, feed back to feedback controller and remove to control the rotating speed etc. of fire grate, air-introduced machine, aerator by recurrent neural network, thus controlling fuel quantity, air output, absorbing quantity etc., it is achieved the dynamic control to combustion chamber draft and boiler water level.
Further, described PLC1 control sub-station, PLC2 control sub-station, PLC3 control sub-station DeviceNet unit are equipped with DeviceNet interface and current sensor, temperature sensor, level sensor, flow transducer, pressure transducer and the terminal resistance that individually signal cable special line detects with presence states parameter amount connects.
Further, described water injecting pump, soda pop bag, Draw off valve, user's steam valve are also included based on PLC and FCS boiler vapour water control system；Described water injecting pump is connected with soda pop bag by pipeline with the electrical connection of Central Control Room industrial computer simultaneously, and Draw off valve, user's steam valve soda pop all bag is connected by pipeline.
Further, described temperature sensor, level sensor, flow transducer, pressure transducer are arranged at soda pop and wrap.
Further, described Central Control Room industrial computer includes display steam water-level height, drum internal gas pressure, steam flow, vapor (steam) temperature in a flowchart, by the color of graphical symbol, Parameters variation and flashing mode, the boiler steam and water circuit of the running status of Dynamic Announce boiler monitors main interface.
Further, described Central Control Room industrial computer also includes the parameter in each control loop carrying out on-line amending or control loop carrying out keyboard or the mouse of manual/auto switching.
Further, described also including alarm device based on PLC and FCS boiler vapour water control system, alarm device includes warning window and alarm bell and electrically connects with Central Control Room industrial computer.
Below in conjunction with principle analysis and embodiment, this utility model is further described.
The monitoring strategies of boiler steam and water circuit operation and parameter processing:
Monitoring strategies:
General boiler steam and water circuit can be divided into by function: these functional subsystems of boiler circuit, air and flue system, combustion system, pressure and temperature reducing and synergic system；Wherein boiler steam and water circuit vapour water control system is the core of boiler steam and water circuit, boiler drum level height control is 1 key factor that boiler steam and water circuit soda pop controls system monitoring, and various control algolithms and the research work of boiler vapour water control system launch mainly around this key factor.
Guarantee that boiler water level is relatively stable within the specific limits, be the essential condition of boiler operatiopn.Boiler feed capacity determines boiler water level, in operation, regulates boiler feed capacity according to the change of boiler water level.During boiler operatiopn, water level is too low, can cause dry pot and burn out water-cooling wall；Water level is too high, saturated steam with moisture can be caused to sharply increase, affect quality of steam, likely injure the safe operation of steam turbine time serious.Feed pressure and drum pressure are the principal elements determining boiler water level.Boiler water level control program have employed the artificial neural network algorithm of boiler drum level.
As shown in Figure 2: the artificial neural network optimal control structure of foundation, including neural network prediction link, optimal controller link and three parts of feedback compensation link.
The performance indications mathematical model that this optimal controller uses is such as shown in formula 1:
In formula, H t+jt=H't+j+e t, e t represents the difference of current steam water-level H true value Hm t and neural network forecast steam water-level H-number H't, and namely e t=Hm t-H't, is called forecast error；M is for controlling time domain；ρ is for controlling weighter factor；Δ Q is the changing value of watering cycle pump discharge.
The change of boiler drum level value H future behaviour track, available neural network prediction model is predicted, thus obtaining one group of optimum control increment Delta Q t+j-1 in the tolerance interval of controlled quentity controlled variable, j=0,1,2, ..., m and Q=[Q t, the Q t+1 corresponding with Δ Q, ..., Q t+m-1], using Q t as the controlled quentity controlled variable applied, it is input to neural network prediction model, refresh by sampling, obtain Filled function control.
The collection of boiler steam and water circuit running state parameter and transmission: the most of running state parameter amount (such as signals such as H, P, B, V, L, temperature (T)) in boiler vapour water control system gathers and adopts following pattern to carry out with transmission.
1) in this boiler control field apparatus control system, the DeviceNet unit of each function substation PLC has independent signal cable special line and connects with presence states parameter amount detection terminal, and other data acquisition equipment and DeviceNet interface have identical communication interface standard, they can be attached directly on DeviceNet fieldbus to be controlled by main website PLC4.
2) in system, major part running state parameter amount signal, after collecting device processes, sends substation PLC to by fieldbus.System utilizes the test technique automatic of DeviceNet fieldbus networks and signal transducer, transmitter to realize the collection to on-site signal and transmission.
PLC control system programming:
Concentration can be adopted remotely to control for system and field control two ways carries out monitoring, remotely controls have Automatic Control and 2 kinds of patterns of semiautomatic control.Under Automatic Control pattern, according to whether manufacturing condition meets, system automatic start-stop equipment；Under semiautomatic control pattern, operation management personnel can, according to equipment practical operation situation, determine certain or several equipment is carried out independent start stop operation；Field control mode mainly adopts at equipment debugging and maintenance period, and field control mode preferentially concentrates distance control mode.
As shown in Figure 3: the technological process that boiler steam and water circuit runs:
The process chart of certain city one chemical fibre factory's boiler steam and water circuit, according to its operation principle and the functional requirement to reach, designs the control flow of boiler vapour water control system, and the control flow of boiler steam and water circuit is as shown in Figure 4.
The control programming that boiler steam and water circuit runs: boiler vapour water control system is an extremely complex nonlinear control system, boiler drum level is physical control amount crucial in boiler vapour water control system.Only meeting when certain soda pop bag water level, boiler steam and water circuit ability normal operation, the too high or too low boiler that all can damage of boiler water level, the design of program it is controlled according to these main points.
System controls operating procedure: after 1. system boot detection, parameter setting etc. initialize, and the first step detects boiler water level.If water level is at low II and high II state, display emergency alarm at once autostop；If water level is in low I position, display alarm, automatically starting water injecting pump carries out moisturizing to boiler simultaneously, and water level is higher than low I position, and normal starting trouble runs.2. ignition of the boiler and unlatching air pump, starts to heat to boiler.If sensed water level is in high I position, display alarm, and automatically turning on Draw off valve and discharge water, if during lower than high I position, boiler heating is properly functioning.3. when water filling reaches the liquid level that boiler sets, open user's valve, start to export steam to user, meanwhile, utilize the network response surface in PLC, it is ensured that boiler drum level is fuctuation within a narrow range within the scope of certain stationary value.
The realization of boiler steam and water circuit operation monitoring function:
In order to better whole boiler soda pop production process be monitored, analyzes and operate, this control system adopts hydrostatic testing device 1 to carry out configuration, by to the repeatedly debugging of certain chemical fibre factory of city boiler automatic control system, improvement, generating the dynamic flow pictures such as the boiler soda pop monitoring main interface of system monitoring, boiler soda pop operant skill checking system picture, alarm screen, real-time tendency and historical trend panel altogether.Thus, producing automatic control process and be able to effective realization, production efficiency significantly improves, and energy-saving effect is notable.
1) boiler steam and water circuit monitors main interface.In a flowchart, by the modes such as the color of graphical symbol, Parameters variation and flicker, the running status of Dynamic Announce boiler, operator can pass through this objective interface and read each technological parameter during boiler soda pop produces.Including steam water-level height, drum internal gas pressure, steam flow, vapor (steam) temperature etc..
2) examination parameter list picture is as shown in Figure 5.The title that each technological parameter of system production process is corresponding can synchronize to show in real time in a tabular form, and the main running state parameter of system is listed in a tabular form in checking system, convenient conclusion, summary and contrast.Also dependent on needing to inquire about the data sheet on corresponding date, production operation personnel are facilitated data to be arranged and analyzes, the favourable production efficiency improving boiler.
3) operation control picture.System respectively controls the production run state in loop and relevant parameter shows with the form of regulating rod figure.Operator can utilize keyboard or mouse easily the parameter in each control loop to be carried out on-line amending.Also can carry out manual/auto switching to controlling loop, it is achieved corresponding operating simultaneously.
4) trend picture.For recording real-time tendency curve picture and historical text picture such as Fig. 6 of system main production parameter, Fig. 6 picture is a certain order of classes or grades at school 1# boiler real-time tendency curve picture, this picture is followed successively by output change curve from top to bottom, leaving water temperature change curve, steam flow change curve, real-time change plot against time parameter desirable 1 on duty, 5, 7 time periods such as 15min, real-time tendency curve picture is used for reflecting the curve picture of boiler operating parameter changing tendency at short notice, operator can adjust relevant control parameter in time according to parameter variation tendency, boiler is made to be in optimum working state, thus improving production efficiency；Historical text picture is used for reflecting that the data variation of a class or some day, operator can be understood in certain time the stability of associated control parameters in time and become to becoming characteristic according to parameter variation tendency.
5) warning window and alarm bell.System is in operation because of the alarm signal of fault generation, all will show in the warning window hurdle below picture, the date and time that record warning simultaneously produces.
Based on PLC and the FCS central heating boiler vapour water control system combined, both make use of PLC reliability height, capacity of resisting disturbance is strong, be prone to networking and be applicable to the feature of industry spot, make use of again the full digital signal of FCS to transmit, field device can conveniently carry out the feature of remotely diagnosis, maintenance and configuration.Certain chemical fibre factory of city 75t/h coal-burning boiler vapour water control system shows through improved operation result, and improved system coal fuel heating efficiency is brought up to 90.57% by 86.31%, improves 4.26%；In flying dust, the phosphorus content of combustible is dropped to 7.87% by 11.48% before transforming, and have dropped 3.61%；Workman's number on duty is dropped to 13 people by per tour 27 people, and per tour reduces personnel 14 people, greatly reduces the labor intensity of workman simultaneously.Improved system not only has good a, feature that intelligence degree is high highly reliable, visual, and has the good result of personnel reduction and enlargement, has good application prospect in similar central heating boiler boiler circuit is transformed.
The above is only to preferred embodiment of the present utility model, not this utility model is done any pro forma restriction, every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, belong in the scope of technical solutions of the utility model.
Claims (8)
1. one kind based on PLC and FCS boiler vapour water control system, it is characterized in that, boiler soda pop operation monitoring system should be included based on PLC and FCS boiler vapour water control system, described boiler soda pop operation monitoring system is PLC and the FCS control system combined, this boiler soda pop operation monitoring system includes the bottom 3-tier architecture to top layer, bottom is scene equipment level, and centre is key-course, management and running layer centered by the superiors；Described scene equipment level includes current sensor, temperature sensor, level sensor, flow transducer, pressure transducer and terminal resistance；Described key-course includes for monitoring and gather the PLC1 control sub-station of boiler electric current, water level, temperature, steam pressure and steam flow parameter, PLC2 control sub-station, PLC3 control sub-station and PLC4 control main website；Described central dispatching management level include Central Control Room industrial computer；All electrically connect with PLC1 control sub-station, PLC2 control sub-station, PLC3 control sub-station after described current sensor, temperature sensor, level sensor, flow transducer, pressure transducer and terminal resistance are parallel with one another, after described PLC1 control sub-station, PLC2 control sub-station, PLC3 control sub-station parallel connection, control main website electrical connection in PLC4；Described PLC4 controls main website and electrically connects with equipped with the Central Control Room industrial computer in order to realize the configuration programming to each control function.
2. as claimed in claim 1 based on PLC and FCS boiler vapour water control system, it is characterized in that, described PLC1 control sub-station, PLC2 control sub-station, PLC3 control sub-station and PLC4 control main website and are provided with neural network prediction device, optimal controller and feedback compensation device；Neural network prediction device includes the harvester of boiler water level signal, the harvester of feed pressure signal and the harvester of drum pressure signal and nerve network controller composition, the harvester of boiler water level signal, the harvester of feed pressure signal and the harvester of drum pressure signal are connected with nerve network controller by the signal gathered, neural network prediction device is connected with optimal controller, and optimal controller connects feedback compensation device.
3. as claimed in claim 1 based on PLC and FCS boiler vapour water control system, it is characterized in that, described PLC1 control sub-station, PLC2 control sub-station, PLC3 control sub-station DeviceNet unit are equipped with DeviceNet interface and current sensor, temperature sensor, level sensor, flow transducer, pressure transducer and the terminal resistance that individually signal cable special line detects with presence states parameter amount connects.
4. as claimed in claim 1 based on PLC and FCS boiler vapour water control system, it is characterised in that described also to include water injecting pump, soda pop bag, Draw off valve, user's steam valve based on PLC and FCS boiler vapour water control system；Described water injecting pump is connected with soda pop bag by pipeline with the electrical connection of Central Control Room industrial computer simultaneously, and Draw off valve, user's steam valve soda pop all bag is connected by pipeline.
5. as claimed in claim 1 based on PLC and FCS boiler vapour water control system, it is characterised in that described temperature sensor, level sensor, flow transducer, pressure transducer are arranged at soda pop and wrap.
6. as claimed in claim 1 based on PLC and FCS boiler vapour water control system, it is characterized in that, described Central Control Room industrial computer includes display steam water-level height, drum internal gas pressure, steam flow, vapor (steam) temperature in a flowchart, by the color of graphical symbol, Parameters variation and flashing mode, the boiler steam and water circuit of the running status of Dynamic Announce boiler monitors main interface.
7. as claimed in claim 1 based on PLC and FCS boiler vapour water control system, it is characterised in that described Central Control Room industrial computer also includes the parameter in each control loop carrying out on-line amending or control loop carrying out keyboard or the mouse of manual/auto switching.
8. as claimed in claim 1 based on PLC and FCS boiler vapour water control system, it is characterised in that described also to include alarm device based on PLC and FCS boiler vapour water control system, alarm device includes warning window and alarm bell and electrically connects with Central Control Room industrial computer.
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