CN102566436A - Control system special for gasification furnace - Google Patents
Control system special for gasification furnace Download PDFInfo
- Publication number
- CN102566436A CN102566436A CN2010105830570A CN201010583057A CN102566436A CN 102566436 A CN102566436 A CN 102566436A CN 2010105830570 A CN2010105830570 A CN 2010105830570A CN 201010583057 A CN201010583057 A CN 201010583057A CN 102566436 A CN102566436 A CN 102566436A
- Authority
- CN
- China
- Prior art keywords
- module
- gasification furnace
- controller
- bus
- functional block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Feedback Control In General (AREA)
Abstract
The invention discloses a control system special for a gasification furnace. Based on an upper computer, the control system special for the gasification furnace comprises a controller module, a bus module, an I/O module, a power module and a back panel; wherein the controller module is connected with the I/O module and the bus module by the back panel to acquire site physical signals; the power module supplies power for the above modules; and the controller module is in communication connection with the upper computer. The system further comprise a power back panel, a controller back panel and an I/O back panel, and the power back panel is used for arranging the power module; the controller back panel is used for arranging the controller module; and the I/O back panel is used for arranging the I/O module. The system of the invention adopts the passive serial back panel bus technology and supports the hot swap of the I/O module. The control system special for the gasification furnace is provided with full-work-condition simulation platform of a dense-phase transportation bed gasification furnace and supports the design and verification of the process simulation and optimal control strategy. The control system of the gasification furnace is based on the site bus, is open and extensible and guarantees the safe and stable running of the gasification furnace.
Description
Technical field
The present invention relates to the advanced manufacturing technology field, specifically a kind of gasification furnace dedicated control system.Native system adopts the technology and the equipment of independent intellectual property right; Mix the gasification furnace dedicated control system based on field bus technique of independent intellectual property right; Embed special-purpose advanced control and operation optimization software, and on the technical grade gasification furnace, implement the large-scale engineering Demonstration Application first to gasification furnace.
Background technology
Large-scale gasification furnace all is in the Demonstration Application stage at home and abroad, and the different process relative merits are different.Technology is different, and controlled target also has very big-difference.The present invention is a background with " fine coal pressurization dense phase transporting bed gasification method and the device " that Institute of Engineering Thernophysics, Academia Sinica of cooperation unit has independent intellectual property right; Process characteristic around the transporting bed gasification stove; Steady, continuous, reliability service to ensure gasification furnace are target, the dynamic model of research gasification furnace, method and technology such as integrated use modeling and simulating, advanced control, process optimization; Research temperature, pressure, oxygen coal ratio, steam oxygen ratio set-point optimization method; Exploitation optimal control software, the complete control system of development gasification furnace, and successful Application is in demonstration project.
Summary of the invention
The present invention to be to realize dense phase transporting bed gasification stove furnace temperature soft-sensing model, control method, optimization method, the special-purpose field bus control system hardware and software exploitation of completion, builds the test experiments platform and tests and be purpose.
To achieve these goals, concrete technical scheme of the present invention is: a kind of gasification furnace dedicated control system based on the basis of host computer, comprises controller module, bus module, I/O module, power module, backboard; Said controller module is connected the collection site physical signalling through backboard with I/O module, bus module; Said power module is that above-mentioned module is supplied power; Said controller module is communicated by letter with host computer and is connected.Also comprise power supply backplane, controller back plate, I/O backboard; Said power supply backplane is used to install power module; Said controller back plate is used for installation and control device module; Said I/O backboard is used to install the I/O module, adopts passive serial core bus technology, supports the hot plug of I/O module.
Said power module adopts 1+1 redundant power structure; Said controller module adopts dual-cpu structure, is responsible for collection, processing, the control of on-the-spot I/O signal; Said bus module adopts on-the-spot FF H1 bus and is connected with field apparatus; Said I/O module comprises analog quantity input interface, analog output interface circuit, switch value input interface, switching value output interface; Be used for the collection site physical signalling.Said on-the-spot FF H1 bus links to each other with field apparatus through cable.Said on-the-spot FF H1 bus comprises: master controller, FF communication chip, 2 network segments; On-the-spot FF H1 bus is carried out exchanges data through serial ports and controller module, and the via controller module is sent to host computer with data, and said host computer is connected with field apparatus through on-the-spot FF H1 bus, and field apparatus is carried out parameter reading and writing and is connected configuration.
Contain the monitoring and control configuration unit in the said host computer; This unit comprises:
-explorer is responsible for the configuration configuration information in the current system of configuration, and shows the configuration configuration information in the current system with the form of tree structure view;
-system information database, the configuration configuration information in the storage system;
-control strategy development environment, the configuration configuration effort of responsible module one-level is made up of module management, data management, Template Manager, algorithm editor, algorithm inspection, on-line monitoring, artificial debugging, inter-module communication module;
-data object management is responsible for the data object in the system information database is resolved to information object;
The management of-I/O mapping relations is responsible between the I/O of I/O functional block and controller module/passage, setting up mapping relations;
-I/O mapping tool, with all I/O configuration informations in the mode display system of tabulation, and through DST.DLL the I/O functional block and and the I/O module/passage of controller between set up mapping relations;
-configuration configuration information download tool is responsible for the configuration configuration information in the system is downloaded in the actual field apparatus;
-I/O server program is responsible for carrying out alternately with on-the-spot actual equipment, device enumeration for example, the download of configuration configuration information, parameter reading and writing or the like;
The encapsulation of-I/O service com interface is packed the com interface that the I/O server provides, to alleviate the burden of CLIENT PROGRAM through I/O server access field controller;
-object browse dynamic link library is according to the different needs of CLIENT PROGRAM, with the summary info of a kind of uniform way display system information database in each upper computer software;
-security service program is responsible for the checking of resource manager program operation;
-embedded conventional func module satisfies transporting bed gasification furnace foundation demand for control originally.
Said embedded conventional func module comprises:
-I/O functional module comprises: analog input functional block, simulation output function piece, digital input function piece, digital output function piece;
-simulation control type functional module comprises: PID functional block, ratio functional block, input selection function piece, lead-lag functional block;
-logical operation class functional module comprises: with calculation function piece, exclusive disjunction functional block, inverse functional block;
-timing class functional module comprises: the counter function piece;
-arithmetic class functional module comprises: add the calculation function piece, subtract the calculation function piece, multiplication functional block, division operation functional block.
The special-purpose embedded software of said dense phase transporting bed gasification stove comprises:
-transporting bed gasification stove model: the stable state thermodynamic performance of prediction gasification furnace; Realize the dynamic perfromance mutation analysis when system performance analysis and operational factor change; For design with improve that the control strategy of gasification furnace sets up; Transporting bed gasification stove model is to be based upon on the basis of balance model principle and reaction kinetics principle, comprising:
1. fugitive constituent is separated out model, calculates the product of fugitive constituent in pyrolytic process, estimates the composition of pyrolysis product through the element balance method of C, H, O, N and S;
2. the gasification submodel comprises the reaction of the reaction of carbon and water vapour, the reduction reaction of carbon dioxide (Boudouard reaction), carbon and hydrogen;
3. export the gas composition model, the principal ingredient of coal gas is CO, H
2, CO
2, H
2O, N
2, CH
4Deng, the sulfurous gas composition is H
2S.Because what in gasification furnace, carry out is pyroreaction, chemical equilibrium reaches very soon, when prediction gasification furnace outlet gas composition, finds the solution gas total mole number and eight kinds of main gas composition mole fractions according to material balance and water gas reaction chemical equilibrium equation;
4. the matter and energy balance model comprises solid phase mass balance, solid carbonaceous amount balance, gas phase mass balance, dynamic power balance equation;
The special-purpose control algolithm software of-transporting bed gasification stove; Carry out the dynamic analysis of gasification furnace according to the realistic model of gasification furnace; Through crossing iterative to differential equation group; Can obtain the model that is used to control, wherein, input variable is coal-supplying amount, oxygen flow, steam flow, lime stone flow and bed drain purge; Output variable is gasifier temperature, pressure, calorific value of gas and bed material amount.Because lime stone is with fixedly calcium sulfur ratio input, so can obtain one 4 * 4 model.Respectively four input quantities are carried out the step variation down of 100% load, thereby carry out a dynamic analysis of output;
Comprise:
The dynamic response of model output when 1. the coal-supplying amount step changes;
The dynamic response of model output when 2. the amount of oxygen step changes;
The dynamic response of model output when 3. water vapour amount step changes;
The dynamic response of model output when 4. the bed drain purge step changes;
According to above analysis result, develop Control for Kiln Temperature functional block, furnace pressure control function piece, calorific value of gas control function piece, bed material amount control function piece.
Intelligence computations such as employing SVMs are technological, the soft-sensing model of invention from the exit gas composition to furnace temperature, and according to the auxiliary furnace temperature detection of outlet process gas composition, even alternative fault value provides correct furnace temperature when thermopair breaks down; The furnace temperature thermopair detected value of confirming with manual work guarantees the accuracy that furnace temperature detects as the foundation of model correction, develops the soft measurement function piece of furnace temperature.
The present invention has following advantage:
1. the present invention has the full operating mode emulation platform of dense phase transporting bed gasification stove, supports design of process simulation and Optimal Control Strategy and checking.
2. the present invention is based on the gasification furnace control system opening of fieldbus, extendible, guarantees the operation of gasification furnace safety and steady.
3. the present invention has the furnace temperature soft-sensing model, and the soft measurement control software of exploitation furnace temperature improves Control for Kiln Temperature precision+/-25 degree.
4. the invention relates to transporting bed gasification stove production run control method, exploitation optimal control software, optimal control software reaches the commercial applications level.
5. the present invention has accomplished the Demonstration Application engineering of the complete control system of gasification furnace, ensures the operation that it is stable, reliable, economic, and efficiency of carbon conversion improves and to reach more than 95%, and cold gas efficiency improves and reaches more than 81%, reduces than the oxygen consumption being reduced to 300Nm
3O
2/ 1000Nm
3(CO+H
2+ CH
4) below, be reduced to 520kg/1000Nm than coal consumption
3(CO+H
2+ CH
4) below.Reach domestic top standard of the same trade, can carry out industry and promote.
Description of drawings
Fig. 1 one-piece construction synoptic diagram of the present invention;
Fig. 2 bus module structural drawing of the present invention;
The inner synoptic diagram that connects of Fig. 3 FF H1 of the present invention bus.
Embodiment
Shown in Fig. 1-3, a kind of gasification furnace dedicated control system based on the basis of host computer, comprises controller module, bus module, I/O module, power module, backboard; Said controller module is connected collection site sensor physical signalling through backboard with I/O module, bus module; Said power module is that above-mentioned module is supplied power; Said controller module is communicated by letter with host computer and is connected.
Also comprise power supply backplane, controller back plate, I/O backboard; Said power supply backplane is used to install power module; Said controller back plate is used for installation and control device module; Said I/O backboard is used to install the I/O module, adopts passive serial core bus technology, supports the hot plug of I/O module.
Said power module adopts 1+1 redundant power structure; Power module is the 24VDC power supply, and output power 20W supports hot plug output overcurrent/overvoltage protection, panel diagnosis deixis; Said controller module adopts dual-cpu structure, is responsible for collection, processing, the control of on-the-spot I/O signal; Be responsible for the tasks such as execution, controller redundancy, Communication Control and protocol processes of management, identification positioning, data output and the various control algolithms of each I/O module respectively; But 255 control of concurrent processing thread; Move 3000 control algolithm functional blocks simultaneously, support hot plug and redundancy feature; Said bus module, adopt on-the-spot FF H1 bus and be connected with field apparatus or HART, Profibus DP etc. multiple; Said I/O module comprises analog quantity input interface, analog output interface circuit, switch value input interface, switching value output interface; Be used for the collection site physical signalling.
Said on-the-spot FF H1 bus links to each other with field apparatus through cable.Cable adopts: common cable, twisted-pair feeder, concentric cable, optical cable etc., can save a large amount of cables, truss, link.
Said on-the-spot FF H1 bus comprises: master controller, FF communication chip, 2 network segments; On-the-spot FF H1 bus is carried out exchanges data through serial ports and controller module, and the via controller module is sent to host computer with data, and said host computer is connected with field apparatus through on-the-spot FF H1 bus, and field apparatus is carried out parameter reading and writing and is connected configuration.Wherein, 32 bit CPU AT9140800 of master controller employing Atmel company are as communication module; The FF communication chip adopts the FBC0409 chip of Shenyang robotization research institute production as fieldbus; 2 network segments have bridge function between the network segment, realize data forwarding.
Contain the monitoring and control configuration unit in the said host computer;
This unit comprises:
-explorer is responsible for the configuration configuration information in the current system of configuration, and shows the configuration configuration information in the current system with the form of tree structure view;
-system information database, the configuration configuration information in the storage system;
-control strategy development environment, the configuration configuration effort of responsible module one-level is made up of module management, data management, Template Manager, algorithm editor, algorithm inspection, on-line monitoring, artificial debugging, inter-module communication module;
-data object management (DBOB.DLL) is responsible for the data object in the system information database is resolved to information object;
-I/O mapping relations management (DST.DLL) are responsible between the I/O of I/O functional block and controller module/passage, setting up mapping relations;
-I/O mapping tool, with all I/O configuration informations in the mode display system of tabulation, and through DST.DLL the I/O functional block and and the I/O module/passage of controller between set up mapping relations;
-configuration configuration information download tool is responsible for the configuration configuration information in the system is downloaded in the actual field apparatus;
-I/O server program is responsible for carrying out alternately with on-the-spot actual equipment (controller), device enumeration for example, the download of configuration configuration information, parameter reading and writing or the like;
-I/O service com interface encapsulation (IOServerWrap.DLL) is packed the com interface that I/O server (NCS2IOServer) provides, to alleviate the burden of CLIENT PROGRAM through I/O server (NCS2IOServer) visit field controller;
-object browse dynamic link library (SysDBBrowser.DLL) is according to the different needs of CLIENT PROGRAM, with the summary info of a kind of uniform way display system information database in each upper computer software;
-security service program is responsible for the checking of resource manager program operation;
-embedded conventional func module satisfies transporting bed gasification furnace foundation demand for control originally.
Said embedded conventional func module comprises:
-I/O functional module comprises: analog input functional block, simulation output function piece, digital input function piece, digital output function piece;
-simulation control type functional module comprises: PID functional block, ratio functional block, input selection function piece, lead-lag functional block;
-logical operation class functional module comprises: with calculation function piece, exclusive disjunction functional block, inverse functional block;
-timing class functional module comprises: the counter function piece;
-arithmetic class functional module comprises: add the calculation function piece, subtract the calculation function piece, multiplication functional block, division operation functional block.
The special-purpose embedded software of said dense phase transporting bed gasification stove comprises:
-transporting bed gasification stove model: the stable state thermodynamic performance of prediction gasification furnace; Realize the dynamic perfromance mutation analysis when system performance analysis and operational factor change; For design with improve that the control strategy of gasification furnace sets up; Transporting bed gasification stove model is to be based upon on the basis of balance model principle and reaction kinetics principle, comprising:
1. fugitive constituent is separated out model, calculates the product of fugitive constituent in pyrolytic process, estimates the composition of pyrolysis product through the element balance method of C, H, O, N and S;
2. the gasification submodel comprises the reaction of the reaction of carbon and water vapour, the reduction reaction of carbon dioxide (Boudouard reaction), carbon and hydrogen;
3. export the gas composition model, the principal ingredient of coal gas is CO, H
2, CO
2, H
2O, N
2, CH
4Deng, the sulfurous gas composition is H
2S.Because what in gasification furnace, carry out is pyroreaction, chemical equilibrium reaches very soon, when prediction gasification furnace outlet gas composition, finds the solution gas total mole number and eight kinds of main gas composition mole fractions according to material balance and water gas reaction chemical equilibrium equation;
4. the matter and energy balance model comprises solid phase mass balance, solid carbonaceous amount balance, gas phase mass balance, dynamic power balance equation;
The special-purpose control algolithm software of-transporting bed gasification stove; Carry out the dynamic analysis of gasification furnace according to the realistic model of gasification furnace; Through crossing iterative to differential equation group; Can obtain the model that is used to control, wherein, input variable is coal-supplying amount, oxygen flow, steam flow, lime stone flow and bed drain purge; Output variable is gasifier temperature, pressure, calorific value of gas and bed material amount.Because lime stone is with fixedly calcium sulfur ratio input, so can obtain one 4 * 4 model.Respectively four input quantities are carried out the step variation down of 100% load, thereby carry out a dynamic analysis of output;
Comprise:
The dynamic response of model output when 1. the coal-supplying amount step changes;
The dynamic response of model output when 2. the amount of oxygen step changes;
The dynamic response of model output when 3. water vapour amount step changes;
The dynamic response of model output when 4. the bed drain purge step changes;
According to above analysis result, develop Control for Kiln Temperature functional block, furnace pressure control function piece, calorific value of gas control function piece, bed material amount control function piece.
Intelligence computations such as employing SVMs are technological, the soft-sensing model of invention from the exit gas composition to furnace temperature, and according to the auxiliary furnace temperature detection of outlet process gas composition, even alternative fault value provides correct furnace temperature when thermopair breaks down; The furnace temperature thermopair detected value of confirming with manual work guarantees the accuracy that furnace temperature detects as the foundation of model correction, develops the soft measurement function piece of furnace temperature.
Said I/O module: for controller module provides on-the-spot I/O signal access function, form, comprising by diverse I/O interface module, I/O terminal and I/O backboard:
⑴ .I/O backboard adopts passive serial core bus technology, supports the hot plug of I/O module;
⑵ .I/O interface module can connect multiple on-the-spot physical signalling, like 4 ~ 20mA industry standard signal, switching value signal, thermal resistance signal, pulse signal, also can control equipment such as various topworkies, electric switch.In addition, the I/O module itself has self-diagnostic functions such as open circuit short-circuit detecting, power fail, equipment state, is easy to the diagnosis and the maintenance of field apparatus;
⑶ .I/O terminal, the access tie point of on-the-spot physical signalling provides 8 tunnel, 16 tunnel concatenation abilities, can be divided into redundant terminals and nonredundancy terminal again.
Control system among the present invention can connect 32 control stations, and each control station can connect 4 I/O modules at most, and each I/O module can connect 8 I/O interface modules, and the I/O number of channels of each I/O interface module is 16.
Software architecture of the present invention is:
1. FF HSE communication network
Control system of the present invention adopts FF HSE fieldbus as Control Network, and the control station that is articulated on the HSE network can real-time Communication for Power, forms control loop, and the control function of full distribution is provided.Accomplish the HSE protocol stack in the invention, the HSE protocol stack comprises each layer protocol and the network management/system management of HSE etc.The concrete realization comprises: FDA task and SM task have also comprised the ICP/IP protocol stack of standard in addition.
2. FF H1 bus communication module
FF is the field bus communication agreement that generally adopts in the process control industry.The present invention is the basis with the gordian technique of fieldbus acp chip and field bus protocol software, has invented transplantable chip drives software package, has realized FF H1 field bus protocol stack with the form of static library.FF H1 protocol stack sofeware comprises: embedded OS (NUCLEUS storehouse), H1 protocol stack program and three parts of FF H1 main website driver.
Invented FF H1 bus communication module.FF H1 interface module is an I/O subsystem of transporting bed gasification furnace control system.Adopt the master controller of 32 bit CPU AT9140800 of Atmel company, adopt the interface chip of the FBC0409 chip of Shenyang robotization research institute production, use FF H1 protocol library to realize embedded software as fieldbus as interface module.
Each H1 bus interface module has two network segments, can connect the FF H1 field apparatus of two network segments simultaneously.Wherein have bridge function between the network segment of FF H1 bus, can realize forwarding of data.FF H1 module carries out sending the data to upper computer software by controller more alternately through serial ports and controller.Configuration software can be visited FF H1 field device information through FF H1 bus interface module, and field apparatus is carried out parameter reading and writing and is connected configuration.
3. monitoring and control configuration software
Monitoring and control configuration software is made up of resource supervisor module, control strategy development environment module, configuration info download module, real-time data base, OPC application etc., and concrete function comprises:
-explorer is responsible for the configuration configuration information in the current system of configuration, and shows the configuration configuration information in the current system with the form of tree structure view;
-system information database, the configuration configuration information in the storage system;
-control strategy development environment, the configuration configuration effort of responsible module one-level is made up of modules such as module management, data management, Template Manager, algorithm editor, algorithm inspection, on-line monitoring, artificial debugging, inter-module communications;
-DBOB.DLL is responsible for the data object in the system information database is resolved to information object;
-DST.DLL is responsible between the I/O of I/O functional block and controller module/passage, setting up mapping relations;
-I/O mapping tool, with all I/O configuration informations in the mode display system of tabulation, and through DST.DLL the I/O functional block and and the I/O module/passage of controller between set up mapping relations;
-configuration configuration information download tool is responsible for the configuration configuration information in the system is downloaded in the actual field apparatus;
-I/O server program is responsible for carrying out alternately with on-the-spot actual equipment (controller), device enumeration for example, the download of configuration configuration information, parameter reading and writing or the like;
-IOServerWrap.DLL packs the com interface that NCS2IOServer (I/O server) provides, to alleviate the burden of CLIENT PROGRAM through NCS2IOServer visit field controller;
-SysDBBrowser.DLL, object browse dynamic link Kuku is according to the different needs of CLIENT PROGRAM, with the summary info of a kind of uniform way display system information database in each upper computer software;
-security service program is responsible for the checking of resource manager program operation.
4. embedded conventional func piece storehouse
The present invention has designed the embedded functional piece on the basis of having studied international standards such as IEC61499, IEC61804, IEC61131-3, carried out code compiling work according to design.These functional blocks are the conventional func piece, and algorithm is simple, can satisfy transporting bed gasification furnace foundation demand for control originally, comprising:
-I/O class functional block comprises: analog input functional block, simulation output function piece, digital input function piece, digital output function piece;
-simulation control type functional block comprises: PID functional block, ratio functional block, input selection function piece, lead-lag functional block;
-logical operation class functional block comprises: with calculation function piece, exclusive disjunction functional block, inverse functional block;
-timing class functional block comprises: the counter function piece;
-arithmetic class functional block comprises: add the calculation function piece, subtract the calculation function piece, multiplication functional block, division operation functional block.
5. fuzzy control, adjust certainly, advanced control function piece such as PREDICTIVE CONTROL
On the basis of accomplishing the conventional func piece, neural network, adjust certainly, control algolithm such as PREDICTIVE CONTROL, realized these complicated control algolithms through the embedded programming mode, and these control algolithms be incorporated in the existing functional block software model.
6. the special-purpose embedded software of said dense phase transporting bed gasification stove comprises:
-transporting bed gasification stove model: the stable state thermodynamic performance of prediction gasification furnace; Realize the dynamic perfromance mutation analysis when system performance analysis and operational factor change; For design with improve that the control strategy of gasification furnace sets up; Transporting bed gasification stove model is to be based upon on the basis of balance model principle and reaction kinetics principle, comprising:
⑴. fugitive constituent is separated out model, calculates the product of fugitive constituent in pyrolytic process, estimates the composition of pyrolysis product through the element balance method of C, H, O, N and S;
⑵. the gasification submodel comprises the reaction of the reaction of carbon and water vapour, the reduction reaction of carbon dioxide (Boudouard reaction), carbon and hydrogen;
⑶. outlet gas composition model, the principal ingredient of coal gas is CO, H
2, CO
2, H
2O, N
2, CH
4Deng, the sulfurous gas composition is H
2S.Because what in gasification furnace, carry out is pyroreaction, chemical equilibrium reaches very soon, when prediction gasification furnace outlet gas composition, finds the solution gas total mole number and eight kinds of main gas composition mole fractions according to material balance and water gas reaction chemical equilibrium equation;
⑷. the matter and energy balance model comprises solid phase mass balance, solid carbonaceous amount balance, gas phase mass balance, dynamic power balance equation;
The special-purpose control algolithm software of-transporting bed gasification stove; Carry out the dynamic analysis of gasification furnace according to the realistic model of gasification furnace; Through crossing iterative to differential equation group; Can obtain the model that is used to control, wherein, input variable is coal-supplying amount, oxygen flow, steam flow, lime stone flow and bed drain purge; Output variable is gasifier temperature, pressure, calorific value of gas and bed material amount.Because lime stone is with fixedly calcium sulfur ratio input, so can obtain one 4 * 4 model.Respectively four input quantities are carried out the step variation down of 100% load, thereby carry out a dynamic analysis of output;
Comprise:
The dynamic response of model output when 1. the coal-supplying amount step changes;
The dynamic response of model output when 2. the amount of oxygen step changes;
The dynamic response of model output when 3. water vapour amount step changes;
The dynamic response of model output when 4. the bed drain purge step changes;
According to above analysis result, develop Control for Kiln Temperature functional block, furnace pressure control function piece, calorific value of gas control function piece, bed material amount control function piece.
Intelligence computations such as employing SVMs are technological, the soft-sensing model of invention from the exit gas composition to furnace temperature, and according to the auxiliary furnace temperature detection of outlet process gas composition, even alternative fault value provides correct furnace temperature when thermopair breaks down; The furnace temperature thermopair detected value of confirming with manual work guarantees the accuracy that furnace temperature detects as the foundation of model correction, develops the soft measurement function piece of furnace temperature.
Claims (8)
1. gasification furnace dedicated control system, the basis based on host computer is characterized in that: comprise controller module, bus module, I/O module, power module, backboard;
Said controller module is connected the collection site physical signalling through backboard with I/O module, bus module;
Said power module is that above-mentioned module is supplied power;
Said controller module is communicated by letter with host computer and is connected.
2. according to the described gasification furnace dedicated control system of claim 1, it is characterized in that: also comprise power supply backplane, controller back plate, I/O backboard;
Said power supply backplane is used to install power module;
Said controller back plate is used for installation and control device module;
Said I/O backboard is used to install the I/O module, adopts passive serial core bus technology, supports the hot plug of I/O module.
3. according to the described gasification furnace dedicated control system of claim 1, it is characterized in that:
Said power module adopts 1+1 redundant power structure;
Said controller module adopts dual-cpu structure, is responsible for collection, processing, the control of on-the-spot I/O signal;
Said bus module adopts on-the-spot FF H1 bus and is connected with field apparatus;
Said I/O module comprises analog quantity input interface, analog output interface circuit, switch value input interface, switching value output interface; Be used for the collection site physical signalling.
4. according to the described gasification furnace dedicated control system of claim 3, it is characterized in that: said on-the-spot FF H1 bus links to each other with field apparatus through cable.
5. according to the described gasification furnace dedicated control system of claim 3, it is characterized in that: said on-the-spot FF H1 bus comprises: master controller, FF communication chip, 2 network segments;
On-the-spot FF H1 bus is carried out exchanges data through serial ports and controller module, and the via controller module is sent to host computer with data, and said host computer is connected with field apparatus through on-the-spot FF H1 bus, and field apparatus is carried out parameter reading and writing and is connected configuration.
6. according to the described gasification furnace dedicated control system of claim 1, it is characterized in that: contain the monitoring and control configuration unit in the said host computer;
This unit comprises:
-explorer is responsible for the configuration configuration information in the current system of configuration, and shows the configuration configuration information in the current system with the form of tree structure view;
-system information database, the configuration configuration information in the storage system;
-control strategy development environment, the configuration configuration effort of responsible module one-level is made up of module management, data management, Template Manager, algorithm editor, algorithm inspection, on-line monitoring, artificial debugging, inter-module communication module;
-data object management is responsible for the data object in the system information database is resolved to information object;
The management of-I/O mapping relations is responsible between the I/O of I/O functional block and controller module/passage, setting up mapping relations;
-I/O mapping tool, with all I/O configuration informations in the mode display system of tabulation, and through DST.DLL the I/O functional block and and the I/O module/passage of controller between set up mapping relations;
-configuration configuration information download tool is responsible for the configuration configuration information in the system is downloaded in the actual field apparatus;
-I/O server program is responsible for carrying out alternately with on-the-spot actual equipment, device enumeration for example, the download of configuration configuration information, parameter reading and writing or the like;
The encapsulation of-I/O service com interface is packed the com interface that the I/O server provides, to alleviate the burden of CLIENT PROGRAM through I/O server access field controller;
-object browse dynamic link library is according to the different needs of CLIENT PROGRAM, with the summary info of a kind of uniform way display system information database in each upper computer software;
-security service program is responsible for the checking of resource manager program operation;
-embedded conventional func module satisfies transporting bed gasification furnace foundation demand for control originally.
7. according to the described gasification furnace dedicated control system of claim 6, it is characterized in that: said embedded conventional func module comprises:
-I/O functional module comprises: analog input functional block, simulation output function piece, digital input function piece, digital output function piece;
-simulation control type functional module comprises: PID functional block, ratio functional block, input selection function piece, lead-lag functional block;
-logical operation class functional module comprises: with calculation function piece, exclusive disjunction functional block, inverse functional block;
-timing class functional module comprises: the counter function piece;
-arithmetic class functional module comprises: add the calculation function piece, subtract the calculation function piece, multiplication functional block, division operation functional block.
8. according to claim 1 a gasification furnace dedicated control system, it is characterized in that: the special-purpose embedded software of said dense phase transporting bed gasification stove comprises:
-transporting bed gasification stove model: the stable state thermodynamic performance of prediction gasification furnace; Realize the dynamic perfromance mutation analysis when system performance analysis and operational factor change; For design with improve that the control strategy of gasification furnace sets up; Transporting bed gasification stove model is to be based upon on the basis of balance model principle and reaction kinetics principle, comprising:
1. fugitive constituent is separated out model, calculates the product of fugitive constituent in pyrolytic process, estimates the composition of pyrolysis product through the element balance method of C, H, O, N and S;
2. gasification submodel comprises the reaction of reduction reaction, carbon and hydrogen of reaction, the carbon dioxide of carbon and water vapour;
3. export the gas composition model, the principal ingredient of coal gas is CO, H
2, CO
2, H
2O, N
2, CH
4Deng, the sulfurous gas composition is
Because what in gasification furnace, carry out is pyroreaction, chemical equilibrium reaches very soon, when prediction gasification furnace outlet gas composition, finds the solution gas total mole number and eight kinds of main gas composition mole fractions according to material balance and water gas reaction chemical equilibrium equation;
4. the matter and energy balance model comprises solid phase mass balance, solid carbonaceous amount balance, gas phase mass balance, dynamic power balance equation;
The special-purpose control algolithm software of-transporting bed gasification stove; Carry out the dynamic analysis of gasification furnace according to the realistic model of gasification furnace; Through crossing iterative to differential equation group; Can obtain the model that is used to control, wherein, input variable is coal-supplying amount, oxygen flow, steam flow, lime stone flow and bed drain purge; Output variable is gasifier temperature, pressure, calorific value of gas and bed material amount;
Because lime stone is with fixedly calcium sulfur ratio input, so can obtain one 4 * 4 model;
Respectively four input quantities are carried out the step variation down of 100% load, thereby carry out a dynamic analysis of output;
Comprise:
The dynamic response of model output when 1. the coal-supplying amount step changes;
The dynamic response of model output when 2. the amount of oxygen step changes;
The dynamic response of model output when 3. water vapour amount step changes;
The dynamic response of model output when 4. the bed drain purge step changes;
According to above analysis result, develop Control for Kiln Temperature functional block, furnace pressure control function piece, calorific value of gas control function piece, bed material amount control function piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105830570A CN102566436A (en) | 2010-12-10 | 2010-12-10 | Control system special for gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105830570A CN102566436A (en) | 2010-12-10 | 2010-12-10 | Control system special for gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102566436A true CN102566436A (en) | 2012-07-11 |
Family
ID=46412089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105830570A Pending CN102566436A (en) | 2010-12-10 | 2010-12-10 | Control system special for gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102566436A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103970705A (en) * | 2014-04-24 | 2014-08-06 | 浪潮电子信息产业股份有限公司 | Multi-path server architecture design with redundant and symmetrical hot-plugging IO boxes |
| CN104634104A (en) * | 2014-12-25 | 2015-05-20 | 贵州永兴科技有限公司 | Automatically-opened universal electric furnace switch with counting and fingerprint recognition functions |
| CN106773718A (en) * | 2017-01-22 | 2017-05-31 | 航天长征化学工程股份有限公司 | Oxygen-carbon ratio control system and oxygen-coal ratio control method of gasification furnace thereof |
| CN111427281A (en) * | 2020-03-24 | 2020-07-17 | 北京曲线智能装备有限公司 | Control method based on I/O port of industrial personal computer |
| TWI819911B (en) * | 2022-11-30 | 2023-10-21 | 中國鋼鐵股份有限公司 | Method for predicting gas level of coke oven gas reservoir |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329553A (en) * | 2008-07-04 | 2008-12-24 | 东南大学 | Gasifying stove forecasting type PID control method |
| CN201254555Y (en) * | 2008-07-18 | 2009-06-10 | 段先胜 | Gasifying stove reaction bin with temperature control function |
| CN201392465Y (en) * | 2009-04-17 | 2010-01-27 | 洛阳新思路智能控制有限公司 | Electric control device of gasifier |
-
2010
- 2010-12-10 CN CN2010105830570A patent/CN102566436A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329553A (en) * | 2008-07-04 | 2008-12-24 | 东南大学 | Gasifying stove forecasting type PID control method |
| CN201254555Y (en) * | 2008-07-18 | 2009-06-10 | 段先胜 | Gasifying stove reaction bin with temperature control function |
| CN201392465Y (en) * | 2009-04-17 | 2010-01-27 | 洛阳新思路智能控制有限公司 | Electric control device of gasifier |
Non-Patent Citations (1)
| Title |
|---|
| 唐修冬: "流化床煤气化炉装置控制系统的设计与实现", 《华东理工大学硕士学位论文》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103970705A (en) * | 2014-04-24 | 2014-08-06 | 浪潮电子信息产业股份有限公司 | Multi-path server architecture design with redundant and symmetrical hot-plugging IO boxes |
| CN104634104A (en) * | 2014-12-25 | 2015-05-20 | 贵州永兴科技有限公司 | Automatically-opened universal electric furnace switch with counting and fingerprint recognition functions |
| CN106773718A (en) * | 2017-01-22 | 2017-05-31 | 航天长征化学工程股份有限公司 | Oxygen-carbon ratio control system and oxygen-coal ratio control method of gasification furnace thereof |
| CN106773718B (en) * | 2017-01-22 | 2023-09-26 | 航天长征化学工程股份有限公司 | Oxygen-carbon ratio control system and gasification furnace oxygen-coal ratio control method thereof |
| CN111427281A (en) * | 2020-03-24 | 2020-07-17 | 北京曲线智能装备有限公司 | Control method based on I/O port of industrial personal computer |
| TWI819911B (en) * | 2022-11-30 | 2023-10-21 | 中國鋼鐵股份有限公司 | Method for predicting gas level of coke oven gas reservoir |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204790550U (en) | Nuclear power DCS platform testing arrangement based on simulation system | |
| CN103309321B (en) | Cold state simulation system applied to coal chemical industry | |
| CN102566436A (en) | Control system special for gasification furnace | |
| CN101154213A (en) | Simulation platform of macrotype power station integrated automation system | |
| CN105527942A (en) | I/o module, setting device, and method of building process control system | |
| CN202339718U (en) | Extendible nuclear power DCS automatic testing device | |
| CN102520689A (en) | Embedded controller based on Godson processor and FPGA (Field Programmable Gate Array) technology | |
| CN202421873U (en) | Distributed control system supporting function safety and information safety | |
| CN103419199A (en) | Teaching system based on open type welding robot | |
| CN106773795A (en) | The inline diagnosis of Power Plant Thermal control logic and optimization device based on virtual objects | |
| CN205101049U (en) | Accurate electric liquid servo control device of TRT system | |
| CN101526805A (en) | PLC analog control system and analog control method thereof | |
| Sachajdak et al. | Dynamic simulation in development of contemporary energy systems–oxy combustion case study | |
| Al-Dabbagh et al. | Dynamic flowgraph modeling of process and control systems of a nuclear-based hydrogen production plant | |
| CN202196324U (en) | Intelligent area controller | |
| CN202351691U (en) | Embedded controller based on loongson processor and field programmable gate array (FPGA) technology | |
| Wang et al. | Development of a distributed control system for PLC-based applications | |
| Stamatescu et al. | ASID: Advanced system for process control towards intelligent specialization in the power engineering fiele | |
| CN106547218B (en) | Direct-current transmission field layer real-time simulation system, simulation system and closed-loop test system | |
| CN106796430A (en) | Monitoring control device test device | |
| Sünder et al. | Towards reconfiguration applications as basis for control system evolution in zero-downtime automation systems | |
| CN103941762B (en) | A kind of flywheel simulator with cold standby function | |
| CN103838186A (en) | Automatic control system of dry method device | |
| Stamatescu et al. | Innovative scada test bed infrastructure for engineering education and research | |
| Gan et al. | A novel marine engine room monitoring and alarm system integrated simulation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |