CN112394682A - Thermal cracking steam boiler linkage control system - Google Patents

Thermal cracking steam boiler linkage control system Download PDF

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Publication number
CN112394682A
CN112394682A CN202011330753.0A CN202011330753A CN112394682A CN 112394682 A CN112394682 A CN 112394682A CN 202011330753 A CN202011330753 A CN 202011330753A CN 112394682 A CN112394682 A CN 112394682A
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module
field
control
control unit
fault
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Inventor
徐德成
陶淑花
姜广涛
陈鹏
吴之羽
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Henan Zhongzhong Environmental Protection Equipment Co ltd
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Henan Zhongzhong Environmental Protection Equipment Co ltd
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Priority to CN202011330753.0A priority Critical patent/CN112394682A/en
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/058Safety, monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B33/00Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
    • F22B33/18Combinations of steam boilers with other apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B35/00Control systems for steam boilers

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

The invention relates to the technical field of boiler control, in particular to a thermal cracking steam boiler linkage control system. The system comprises a central control unit, wherein the central control unit comprises a user management module, a state display module, a parameter setting module, a fault monitoring unit and an online instrument module; the fault monitoring unit comprises a history recording module, a real-time monitoring module and a fault alarm module; the online instrument module comprises an automatic control module, a mode switching module and a manual control module; the central control unit is connected with a plurality of field control units through Ethernet communication, and each field control unit comprises a data acquisition module, an instruction receiving module and an instruction execution module; the field control unit is connected with a plurality of field sensing units through digital signal communication. The design of the invention is convenient for supervision and maintenance, can improve the efficiency of troubleshooting, reduce the consumption of manpower and time, and ensure that the steam boiler in the high-pressure thermal cracking treatment process flow can safely, quickly and stably run.

Description

Thermal cracking steam boiler linkage control system
Technical Field
The invention relates to the technical field of boiler control, in particular to a thermal cracking steam boiler linkage control system.
Background
The high-pressure thermal cracking treatment process is applied to sludge treatment, can change the physical properties of sludge, improve the sludge treatment effect, accelerate the speed of harmless treatment of the sludge and improve the sludge recycling effect. In the high-pressure thermal cracking process, a large amount of high-temperature high-pressure steam is needed, so that one or more large steam boilers are required to operate simultaneously to ensure continuous steam supply. However, each boiler operates independently, which is inconvenient for centralized management and monitoring of the boiler, requires a lot of manpower and time to supervise and maintain the boiler, and is also inconvenient for fast troubleshooting of fault conditions occurring in the operation process of the boiler, thereby reducing the work efficiency of the process flow and failing to ensure the operation stability of the boiler.
Disclosure of Invention
The invention aims to provide a thermal cracking steam boiler linkage control system to solve the problems in the background technology.
In order to solve the technical problems, one of the objectives of the present invention is to provide a thermal cracking steam boiler coordinated control system, which comprises a central control unit, wherein the central control unit is used for completing data processing, loop control and sequence control, and completing all monitoring, adjusting and operation functions facing to the process through an industrial control unit, and the industrial control unit interacts information with the external workers and completes monitoring and management tasks internally;
the central control unit comprises a user management module, a state display module, a parameter setting module, a fault monitoring unit and an online instrument module;
the fault monitoring unit comprises a history recording module, a real-time monitoring module and a fault alarm module;
the online instrument module comprises an automatic control module, a mode switching module and a manual control module;
the central control unit is connected with a plurality of field control units through Ethernet communication, the field control units are used for carrying out field data acquisition and simple processing, driving field execution mechanisms and the like through a field PLC control cabinet, and the field PLC control cabinet receives an instruction of an upper computer from the upper part and acquires data from the lower part;
the field control unit comprises a data acquisition module, an instruction receiving module and an instruction execution module;
the field control unit is connected with a plurality of field sensing units through digital signal communication, and the field sensing units are used for accurately detecting the field working condition parameters of the boiler in real time through a plurality of field sensors and actuators.
As a further improvement of the technical solution, the user management module is used for providing a channel for a user to interact with the system; the state display module is used for displaying the working state of the industrial control unit and the real-time numerical value of the important parameter through the user terminal; the parameter setting module is used for providing a channel for setting parameter values in the boiler operation process for a user; the fault monitoring unit is used for monitoring the fault condition in the whole operation process of the system and making a response; the on-line instrument module is used for providing a control mode for automatically and manually controlling the operation of the system and controlling smooth switching between the two modes.
As a further improvement of the technical scheme, the history recording module is used for recording information such as fault types, time, repair modes, recovery time and the like which appear in the past period of the system so as to form a history database; the real-time monitoring module is used for monitoring whether a fault condition occurs in the running process of the system in real time; the fault alarm module is used for giving an alarm when the system has operation faults and reporting the fault position of the system.
As a further improvement of the technical solution, in the fault alarm module, an european distance calculation method is adopted for reporting the fault position of the system, and a calculation formula of the method is as follows:
Figure BDA0002795734370000031
wherein (x)1,y1) Is the coordinate of the industrial control unit, (x)2,y2) For the location coordinates of the malfunctioning device, d12The Euclidean distance from the fault position to the industrial control unit.
As a further improvement of the technical scheme, the automatic control module is used for automatically controlling the operation process of the boiler linkage system according to a set program through the system; the mode switching module is used for controlling the conversion process from the automatic mode to the manual mode or from the manual mode to the automatic mode; the manual control module is used for providing a way for a user to operate the state of the system through manual operation.
As a further improvement of the technical scheme, a plurality of field control units are mutually communicated through Ethernet, each field control unit has relative independence, and a field PLC control cabinet can be disconnected from an industrial control unit to carry out independent operation and monitoring operation through the industrial control unit in an online state.
As a further improvement of the technical scheme, the data acquisition module is used for collecting system state values detected by a field sensor and an actuator in real time, cleaning data, screening invalid data and uploading the simply processed data to an industrial control unit; the instruction receiving module is used for receiving an operation instruction sent by an upper computer; the instruction execution module is used for executing the received operation instruction and driving corresponding equipment in the system according to the instruction.
As a further improvement of the technical solution, in the data acquisition module, the method for cleaning data employs an entropy algorithm of information quantity, and a calculation formula of the entropy algorithm is as follows:
H(x)=-∑P(Xi)log2P(Xi);
wherein, i is 1,2,3iDenotes the ith state (n states in total), P (X)i) Represents the probability of the i-th state occurring, and h (x) is the amount of information needed to remove uncertainty, in bits (bits).
The second objective of the present invention is to provide a work flow of the thermal cracking steam boiler coordinated control system, which comprises the following steps:
s1, a user logs in the system with legal identity through a user terminal, the system distributes different operation authorities according to the identity of the user, an engineer can observe the state of field equipment of each workshop in real time through the user terminal, and the user with the operation authorities can set, modify and delete operation parameters, alarm parameters and the like after logging in the system;
s2, sequentially starting each field control cabinet, in the running process of the system, monitoring the running state of field equipment in real time by sensors arranged on each field and timely reporting the collected measured values to an industrial personal computer through the field control cabinets, and comparing and analyzing the received data by the industrial personal computer to judge the running state of each substation and display the state information on a user terminal;
s3, in the system operation process, the industrial control unit sends an instruction for changing the operation state to the field control cabinet according to the data analysis result and the field control cabinet receives the instruction and controls each field actuator to execute the corresponding instruction;
s4, in the running process of the system, the system monitors the running state of each field actuator in real time, when equipment breaks down, the system sends an alarm to an engineer in time and reports the fault position, the fault position is displayed on a status bar of a main interface of the system, at the moment, the engineer logs in the system, and the system automatically pops up a fault history for the reference of the engineer;
s5, when the system can not automatically repair the fault, the engineer switches the automatic control mode into the manual control mode through the online instrument, controls the operation process of the system through the manual control mode, and can arrange the field engineer to perform troubleshooting and maintenance operation;
s6, after troubleshooting is completed, the system automatically records information such as the type, time, repair mode, recovery time and the like of the fault into a fault history database;
s7, switching the manual control mode to the automatic control mode through the online instrument by the engineer, continuously and automatically operating the system, and monitoring the operating state of the system in real time through the user terminal by the engineer;
s8, when linkage control is needed to be carried out on each field control cabinet, each field PLC control cabinet is connected to the industrial control unit through Ethernet communication;
and S9, when linkage control is not needed to be carried out on each field control cabinet, the network connection is disconnected, and each field control cabinet operates independently.
The present invention also provides a thermal cracking steam boiler coordinated control device, which comprises a processor, a memory and a computer program stored in the memory and running on the processor, wherein the processor is used for implementing any one of the thermal cracking steam boiler coordinated control systems when executing the computer program.
A fourth object of the present invention is to provide a computer-readable storage medium storing a computer program for realizing any of the above-mentioned thermal cracking steam boiler cooperative control systems when the computer program is executed by a processor.
Compared with the prior art, the invention has the beneficial effects that: in the thermal cracking steam boiler linkage control system, the plurality of field control cabinets which can independently operate are arranged, and the plurality of field control cabinets can also be connected to the industrial personal computer group for centralized operation and monitoring.
Drawings
FIG. 1 is an exemplary product architecture diagram of the present invention;
FIG. 2 is a partial block diagram of the control device of the present invention;
FIG. 3 is a partial block diagram of the control apparatus of the present invention;
FIG. 4 is a partial block diagram of the control apparatus of the present invention;
FIG. 5 is a partial block diagram of the control apparatus of the present invention;
FIG. 6 is a partial block diagram of the control device of the present invention;
FIG. 7 is an E-R diagram of the central control of the present invention;
fig. 8 is a schematic structural diagram of an electronic device according to the present invention.
The various reference numbers in the figures mean:
100. a central control unit; 101. a user management module; 102. a status display module; 103. a parameter setting module; 104. a fault monitoring unit; 1041. a history recording module; 1042. a real-time monitoring module; 1043. a fault alarm module; 105. an on-line instrumentation module; 1051. an automatic control module; 1052. a mode switching module; 1053. a manual control module;
200. a field control unit; 201. a data acquisition module; 202. an instruction receiving module; 203. an instruction execution module;
300. and a field sensing unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Application examples
As shown in fig. 1-8, the present embodiment provides a thermal cracking steam boiler coordinated control system, which includes a central control unit 100, the central control unit 100 is configured to complete data processing, loop control and sequence control, complete all monitoring, adjusting and calculating functions facing to the process through an industrial control unit, the industrial control unit interacts information with external workers, and completes monitoring and management tasks internally;
the central control unit 100 comprises a user management module 101, a state display module 102, a parameter setting module 103, a fault monitoring unit 104 and an online instrument module 105;
the fault monitoring unit 104 comprises a history recording module 1041, a real-time monitoring module 1042 and a fault alarm module 1043;
the online instrumentation module 105 includes an automatic control module 1051, a mode switch module 1052, and a manual control module 1053;
the central control unit 100 is connected with a plurality of field control units 200 through Ethernet communication, the field control units 200 are used for carrying out field data acquisition and simple processing, driving field execution mechanisms and the like through a field PLC control cabinet, and the field PLC control cabinet receives instructions of an upper computer from the upper part and acquires data from the lower part;
the field control unit 200 comprises a data acquisition module 201, an instruction receiving module 202 and an instruction execution module 203;
the site control unit 200 is connected with a plurality of site sensing units 300 through digital signal communication, and the site sensing units 300 are used for accurately detecting site working condition parameters of the boiler in real time through a plurality of site sensors and actuators.
The field sensors include, but are not limited to, timers, temperature sensors, pressure sensors, level meters, flow meters, and the like.
Further, the field actuators include, but are not limited to, water pumps, boilers, burners, deaerators, audible and visual alarms, electrical equipment, circuit breakers, thermal relays, smoke ejectors, and the like.
In this embodiment, the user management module 101 is configured to provide a channel for a user to interact with the system; the state display module 102 is used for displaying the working state of the industrial control unit and the real-time numerical value of the important parameter through the user terminal; the parameter setting module 103 is used for providing a channel for setting parameter values in the operation process of the boiler for a user; the fault monitoring unit 104 is used for monitoring fault conditions in the whole operation process of the system and making a response; the on-line instrumentation module 105 is used to provide smooth switching between the steering mode and the control mode for operation of the automatic and manual control systems.
User identities include, but are not limited to, the following levels, including administrators, operators, supervisors, engineers, and the like.
Further, the operating state includes, but is not limited to, the following states including running, standby, stop, alarm, etc.
Further, system parameters include, but are not limited to, time, temperature, pressure, level, flow rate, cumulative run time, and the like.
In this embodiment, the history recording module 1041 is configured to record information of a fault type, time, a repair method, recovery time, and the like that occur in the system in the future to form a history database; the real-time monitoring module 1042 is used for monitoring whether a fault condition occurs in the running process of the system in real time; the fault alarm module 1043 is configured to send an alarm when the system has an operation fault, and report a fault location of the system.
Further, in the fault alarm module 1043, the reporting system fault position adopts an euclidean distance calculation method, and the calculation formula is as follows:
Figure BDA0002795734370000091
wherein (x)1,y1) Is the coordinate of the industrial control unit, (x)2,y2) For the location coordinates of the malfunctioning device, d12The Euclidean distance from the fault position to the industrial control unit.
In this embodiment, the automatic control module 1051 is used for automatically controlling the operation process of the boiler linkage system according to a set program through the system; the mode switching module 1052 is used for controlling the conversion process between the automatic mode to the manual mode or the manual mode to the automatic mode; the manual control module 1053 is used to provide a user with access to the operating state of the system through manual manipulation.
In this embodiment, the field control units 200 are interconnected through ethernet communication, each field control unit 200 has relative independence, and the field PLC control cabinet can be disconnected from the industrial control unit to perform independent operation, and can also perform operation monitoring through the industrial control unit in an online state.
In this embodiment, the data acquisition module 201 is configured to collect system state values detected by a field sensor and an actuator in real time, clean data, screen out invalid data, and upload the simply processed data to an industrial control unit; the instruction receiving module 202 is configured to receive an operation instruction sent by an upper computer; the instruction execution module 203 is configured to execute the received operation instruction and drive a corresponding device in the system according to the instruction.
Further, in the data acquisition module 201, the method for cleaning the data adopts an entropy algorithm of information quantity, and a calculation formula thereof is as follows:
H(x)=-∑P(Xi)log2P(Xi);
wherein, i is 1,2,3iDenotes the ith state (n states in total), P (X)i) Represents the probability of the i-th state occurring, and h (x) is the amount of information needed to remove uncertainty, in bits (bits).
Product and method embodiments
Referring to fig. 1, there is shown an exemplary product architecture diagram of a thermal cracking steam boiler coordinated control system according to the present embodiment, the product includes a central control cabinet, ethernet communication, a plurality of field control cabinets, and a plurality of field sensors and actuators.
The central control cabinet comprises an industrial personal computer, one or more user terminals are connected to the industrial personal computer, and a plurality of or multi-level users can conveniently monitor and operate the system at the same time.
In this embodiment, a workflow of the thermal cracking steam boiler coordinated control system is provided, which includes the following steps:
s1, a user logs in the system with legal identity through a user terminal, the system distributes different operation authorities according to the identity of the user, an engineer can observe the state of field equipment of each workshop in real time through the user terminal, and the user with the operation authorities can set, modify and delete operation parameters, alarm parameters and the like after logging in the system;
s2, sequentially starting each field control cabinet, in the running process of the system, monitoring the running state of field equipment in real time by sensors arranged on each field and timely reporting the collected measured values to an industrial personal computer through the field control cabinets, and comparing and analyzing the received data by the industrial personal computer to judge the running state of each substation and display the state information on a user terminal;
s3, in the system operation process, the industrial control unit sends an instruction for changing the operation state to the field control cabinet according to the data analysis result and the field control cabinet receives the instruction and controls each field actuator to execute the corresponding instruction;
s4, in the running process of the system, the system monitors the running state of each field actuator in real time, when equipment breaks down, the system sends an alarm to an engineer in time and reports the fault position, the fault position is displayed on a status bar of a main interface of the system, at the moment, the engineer logs in the system, and the system automatically pops up a fault history for the reference of the engineer;
s5, when the system can not automatically repair the fault, the engineer switches the automatic control mode into the manual control mode through the online instrument, controls the operation process of the system through the manual control mode, and can arrange the field engineer to perform troubleshooting and maintenance operation;
s6, after troubleshooting is completed, the system automatically records information such as the type, time, repair mode, recovery time and the like of the fault into a fault history database;
s7, switching the manual control mode to the automatic control mode through the online instrument by the engineer, continuously and automatically operating the system, and monitoring the operating state of the system in real time through the user terminal by the engineer;
s8, when linkage control is needed to be carried out on each field control cabinet, each field PLC control cabinet is connected to the industrial control unit through Ethernet communication;
and S9, when linkage control is not needed to be carried out on each field control cabinet, the network connection is disconnected, and each field control cabinet operates independently.
Electronic device embodiment
Referring to fig. 8, a schematic structural diagram of a thermal cracking steam boiler coordinated control device according to the present embodiment is shown, which includes a processor, a memory and a computer program stored in the memory and running on the processor.
The processor comprises one or more than one processing core, the processor is connected with the processor through a bus, the memory is used for storing program instructions, and the processor realizes the thermal cracking steam boiler linkage control system when executing the program instructions in the memory.
Alternatively, the memory may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
In addition, the invention also provides a computer readable storage medium, the computer readable storage medium stores a computer program, and the computer program is executed by a processor to realize the thermal cracking steam boiler linkage control system.
Optionally, the present invention also provides a computer program product containing instructions which, when executed on a computer, cause the computer to execute the thermal cracking steam boiler coordinated control system of the above aspects.
It will be understood by those skilled in the art that all or part of the steps of implementing the above embodiments may be implemented by hardware, or may be implemented by hardware related to instructions of a program, which may be stored in a computer-readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. Thermal cracking steam boiler coordinated control system, its characterized in that:
the system comprises a central control unit (100), wherein the central control unit (100) is used for completing data processing, loop control and sequence control and completing all monitoring, adjusting and operating functions facing the process through an industrial control unit, and the industrial control unit interacts information with workers externally and completes monitoring and management tasks internally;
the central control unit (100) comprises a user management module (101), a state display module (102), a parameter setting module (103), a fault monitoring unit (104) and an online instrument module (105);
the fault monitoring unit (104) comprises a historical record module (1041), a real-time monitoring module (1042) and a fault alarm module (1043);
the on-line instrumentation module (105) includes an automatic control module (1051), a mode switching module (1052), and a manual control module (1053);
the central control unit (100) is in communication connection with a plurality of field control units (200) through Ethernet, the field control units (200) are used for carrying out field data acquisition and simple processing, driving field execution mechanisms and the like through a field PLC control cabinet, and the field PLC control cabinet receives an instruction of an upper computer from the upper part and acquires data from the lower part;
the field control unit (200) comprises a data acquisition module (201), an instruction receiving module (202) and an instruction execution module (203);
the on-site control unit (200) is connected with a plurality of on-site sensing units (300) through digital signal communication, and the on-site sensing units (300) are used for accurately detecting on-site working condition parameters of the boiler in real time through a plurality of on-site sensors and actuators.
2. A thermal cracking steam boiler coordinated control system according to claim 1, wherein: the user management module (101) is used for providing a channel for a user to interact with the system; the state display module (102) is used for displaying the working state of the industrial control unit and the real-time numerical value of the important parameter through the user terminal; the parameter setting module (103) is used for providing a channel for setting the parameter values in the operation process of the boiler for a user; the fault monitoring unit (104) is used for monitoring fault conditions in the whole operation process of the system and making a reaction; the on-line instrumentation module (105) is used to provide a steering mode for operation of the automatic and manual control systems and smooth switching between the two modes of control.
3. A thermal cracking steam boiler coordinated control system according to claim 2, wherein: the history recording module (1041) is used for recording information such as fault type, time, repair mode, recovery time and the like of the system in the future so as to form a history database; the real-time monitoring module (1042) is used for monitoring whether a fault condition occurs in the operation process of the system in real time; and the fault alarm module (1043) is used for giving an alarm when the system has an operation fault and reporting the fault position of the system.
4. A thermal cracking steam boiler coordinated control system according to claim 1, wherein: in the fault alarm module (1043), the position of the fault of the reporting system adopts an Euclidean distance calculation method, and the calculation formula is as follows:
Figure FDA0002795734360000021
wherein (x)1,y1) Is the coordinate of the industrial control unit, (x)2,y2) For the location coordinates of the malfunctioning device, d12The Euclidean distance from the fault position to the industrial control unit.
5. A thermal cracking steam boiler coordinated control system according to claim 1, wherein: the automatic control module (1051) is used for automatically controlling the operation process of the boiler linkage system according to a set program through the system; the mode switching module (1052) is used for controlling the conversion process from the automatic mode to the manual mode or from the manual mode to the automatic mode; the manual control module (1053) is used to provide a user with access to the operating state of the system via manual operation.
6. A thermal cracking steam boiler coordinated control system according to claim 1, wherein: the field control units (200) are mutually communicated through Ethernet communication, each field control unit (200) has relative independence, and a field PLC control cabinet can be separated from an industrial control unit to carry out independent operation and monitoring operation through the industrial control unit in an online state.
7. A thermal cracking steam boiler coordinated control system according to claim 1, wherein: the data acquisition module (201) is used for collecting system state values detected by a field sensor and an actuator in real time, cleaning data, screening invalid data and uploading the simply processed data to an industrial control unit; the instruction receiving module (202) is used for receiving an operation instruction sent by an upper computer; the instruction execution module (203) is used for executing the received operation instruction and driving corresponding equipment in the system according to the instruction.
8. A thermal cracking steam boiler coordinated control system according to claim 7, wherein: in the data acquisition module (201), the method for cleaning the data adopts an entropy algorithm of information quantity, and the calculation formula is as follows:
H(x)=-∑P(Xi)log2P(Xi);
wherein, i is 1,2,3iDenotes the ith state (n states in total), P (X)i) Represents the probability of the i-th state occurring, and h (x) is the amount of information needed to remove uncertainty, in bits (bits).
9. A thermal cracking steam boiler coordinated control system according to claims 1-8, wherein: the method comprises the following steps:
s1, a user logs in the system with legal identity through a user terminal, the system distributes different operation authorities according to the identity of the user, an engineer can observe the state of field equipment of each workshop in real time through the user terminal, and the user with the operation authorities can set, modify and delete operation parameters, alarm parameters and the like after logging in the system;
s2, sequentially starting each field control cabinet, in the running process of the system, monitoring the running state of field equipment in real time by sensors arranged on each field and timely reporting the collected measured values to an industrial personal computer through the field control cabinets, and comparing and analyzing the received data by the industrial personal computer to judge the running state of each substation and display the state information on a user terminal;
s3, in the system operation process, the industrial control unit sends an instruction for changing the operation state to the field control cabinet according to the data analysis result and the field control cabinet receives the instruction and controls each field actuator to execute the corresponding instruction;
s4, in the running process of the system, the system monitors the running state of each field actuator in real time, when equipment breaks down, the system sends an alarm to an engineer in time and reports the fault position, the fault position is displayed on a status bar of a main interface of the system, at the moment, the engineer logs in the system, and the system automatically pops up a fault history for the reference of the engineer;
s5, when the system can not automatically repair the fault, the engineer switches the automatic control mode into the manual control mode through the online instrument, controls the operation process of the system through the manual control mode, and can arrange the field engineer to perform troubleshooting and maintenance operation;
s6, after troubleshooting is completed, the system automatically records information such as the type, time, repair mode, recovery time and the like of the fault into a fault history database;
s7, switching the manual control mode to the automatic control mode through the online instrument by the engineer, continuously and automatically operating the system, and monitoring the operating state of the system in real time through the user terminal by the engineer;
s8, when linkage control is needed to be carried out on each field control cabinet, each field PLC control cabinet is connected to the industrial control unit through Ethernet communication;
and S9, when linkage control is not needed to be carried out on each field control cabinet, the network connection is disconnected, and each field control cabinet operates independently.
CN202011330753.0A 2020-11-24 2020-11-24 Thermal cracking steam boiler linkage control system Pending CN112394682A (en)

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CN113137766A (en) * 2021-04-22 2021-07-20 江西江右净达热能科技有限公司 Boiler automation control system
CN113359599A (en) * 2021-06-29 2021-09-07 华能左权煤电有限责任公司 Control system of dryer for instrument
CN114774671A (en) * 2022-04-02 2022-07-22 湖北之江智能科技有限公司 Tempering furnace intelligent supervision system and control method
CN115386391A (en) * 2022-08-01 2022-11-25 浙江中控技术股份有限公司 Cracking furnace feeding flow monitoring and fault handling method and system

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CN113137766A (en) * 2021-04-22 2021-07-20 江西江右净达热能科技有限公司 Boiler automation control system
CN113359599A (en) * 2021-06-29 2021-09-07 华能左权煤电有限责任公司 Control system of dryer for instrument
CN114774671A (en) * 2022-04-02 2022-07-22 湖北之江智能科技有限公司 Tempering furnace intelligent supervision system and control method
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CN115386391B (en) * 2022-08-01 2023-10-13 浙江中控技术股份有限公司 Method and system for monitoring feeding flow of cracking furnace and processing faults

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