CN110238358B - Control method and device for continuous casting crystal water system and electronic equipment - Google Patents
Control method and device for continuous casting crystal water system and electronic equipment Download PDFInfo
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- CN110238358B CN110238358B CN201910435680.2A CN201910435680A CN110238358B CN 110238358 B CN110238358 B CN 110238358B CN 201910435680 A CN201910435680 A CN 201910435680A CN 110238358 B CN110238358 B CN 110238358B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
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- B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
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Abstract
The embodiment of the invention relates to the technical field of automatic control, in particular to a control method, a device and electronic equipment for a continuous casting crystal water system.
Description
Technical Field
The embodiment of the invention relates to the technical field of automatic control, in particular to a control method and device for a continuous casting crystal water system and electronic equipment.
Background
The continuous casting water crystallizing system is a system for forcibly and uniformly cooling a casting blank in a length interval from a crystallizer outlet to a withdrawal and straightening machine in the continuous casting steel-making process. At present, the stable and safe operation of a continuous casting water crystallization system is increasingly important under the requirement of high quality and high yield of continuous casting billets. But the prior control technology is difficult to ensure the stable and safe operation of a continuous casting and crystallizing water system.
Disclosure of Invention
In view of this, the invention provides a method and a device for controlling a continuous casting water crystallization system, and an electronic device.
The embodiment of the invention provides a control method of a continuous casting crystal water system, which is applied to electronic equipment, wherein the electronic equipment is respectively and electrically connected with an accident water valve, a power supply, a safety relay, a water supply pump motor and a diesel engine in the continuous casting crystal water system, and the method comprises the following steps:
collecting corresponding digital signals from the emergency water valve, the power supply, the safety relay and the water supply pump motor respectively;
judging the fault type of the continuous casting crystal water system according to the acquired digital signal, and sending a control signal to the accident water valve and the diesel engine according to the fault type so as to enable the accident water valve and the diesel engine to switch states according to the control signal.
Optionally, the digital signal collected from the emergency water valve is a first digital signal, the digital signal collected from the power supply is a second digital signal, the digital signal collected from the safety relay is a third digital signal, and the digital signal collected from the water supply pump motor is the sum of the number of water supply pump motors in a closed state and the current value of the water supply pump motors in the closed state;
the continuous casting crystal water system also comprises a pressure sensor arranged at a water supply pipe of the water supply pump, and the pressure sensor is electrically connected with the electronic equipment; the safety relay is electrically connected with the diesel engine;
the method comprises the steps of judging the fault type of the continuous casting crystal water system according to the collected digital signals, and sending control signals to the accident water valve and the diesel engine according to the fault type to enable the accident water valve and the diesel engine to switch states according to the control signals, and comprises the following steps:
when the first digital signal and the third digital signal are a first set value, the second digital signal is a second set value, the quantity reaches a set value, and the sum of the current values reaches a set current value, the safety relay is judged to be in a fault state, and a first control signal is sent to an accident water valve in an open state to enable the accident water valve to be switched from the open state to a closed state; acquiring a real-time pressure value sent by the pressure sensor, and sending a second control signal to the diesel engine in the running state when the real-time pressure value reaches a set pressure value so as to switch the diesel engine from the running state to the stopping state; wherein the diesel engine is in an operating state when the safety relay is in a fault state.
Optionally, the electronic device is electrically connected with a normally open contact of a relay coil of the safety relay, and the third digital signal is a digital signal of the normally open contact of the relay coil;
the electronic equipment is electrically connected with a normally open contact of a high-voltage cabinet control circuit in the continuous casting crystal water system, and the safety relay is linked with the normally open contact of the high-voltage cabinet control circuit;
the method further comprises the following steps:
and when the safety relay is judged to be in a fault state, acquiring a digital signal of a normally open contact of the high-voltage cabinet control circuit, and if the digital signal of the normally open contact of the high-voltage cabinet control circuit is the first set value, generating and displaying first fault information of the fault of the high-voltage cabinet control circuit.
Optionally, the electronic device is electrically connected with a normally open contact of a main breaker incoming line relay of the power supply, and the second digital signal is a digital signal acquired by the electronic device from the normally open contact of the main breaker incoming line relay of the power supply;
the step of judging the fault type of the continuous casting crystal water system according to the acquired digital signal and sending a control signal to the accident water valve and the diesel engine according to the fault type to enable the accident water valve and the diesel engine to switch states according to the control signal further comprises the following steps:
when the first digital signal, the second digital signal and the third digital signal are the first set value, the number reaches the set numerical value and the sum of the current values reaches the set current value, the safety relay is judged to be in a fault state, second fault information of the fault of the normally open contact of the main breaker inlet wire relay of the power supply is generated and displayed, and the first control signal is sent to the accident water valve in an open state to enable the accident water valve to be switched from the open state to a closed state; and acquiring a real-time pressure value sent by the pressure sensor, and sending the second control signal to the diesel engine in the running state when the real-time pressure value reaches the set pressure value so as to switch the diesel engine from the running state to the stop state.
Optionally, the step of determining a fault type of the continuous casting crystalline water system according to the acquired digital signal, and sending a control signal to the accident water valve and the diesel engine according to the fault type to enable the accident water valve and the diesel engine to perform state switching according to the control signal further includes:
when the first digital signal is the first set value, the second digital signal and the third digital signal are the second set value, the quantity reaches the set numerical value and the sum of the current values reaches the set current value, the first control signal is sent to the accident water valve in an open state to enable the accident water valve to be switched from the open state to a closed state; and acquiring a real-time pressure value sent by the pressure sensor, and sending the second control signal to the diesel engine in the running state when the real-time pressure value reaches the set pressure value so as to switch the diesel engine from the running state to the stop state.
Optionally, the step of determining a fault type of the continuous casting crystalline water system according to the acquired digital signal, and sending a control signal to the accident water valve and the diesel engine according to the fault type to enable the accident water valve and the diesel engine to perform state switching according to the control signal further includes:
when the first digital signal, the second digital signal and the third digital signal are all the second set value, the number reaches the set value and the sum of the current values does not reach the set current value, or
When the first digital signal, the second digital signal and the third digital signal are all the second set value, the sum of the current values reaches the set current value and the number does not reach the set value, or
When the first digital signal, the second digital signal and the third digital signal are all the second set value, the number does not reach the set numerical value and the sum of the current values does not reach the set current value,
generating and displaying third fault information of the water supply pump motor fault; and sending a third control signal to the accident water valve in the closed state to switch the accident water valve from the closed state to the open state, and sending a fourth control signal to the diesel engine in the stopped state to switch the diesel engine from the stopped state to the running state.
Optionally, the method further comprises:
and when the quantity reaches the set numerical value and the sum of the current values reaches the set current value, responding to a reset instruction input by a user, switching the emergency water valve in an open state into a closed state according to the reset instruction, and switching the diesel engine in a running state into a stop state.
The embodiment of the invention also provides a control device of a continuous casting crystal water system, which is applied to electronic equipment, wherein the electronic equipment is respectively and electrically connected with an accident water valve, a power supply, a safety relay, a water supply pump motor and a diesel engine in the continuous casting crystal water system, and the control device comprises:
the digital signal acquisition module is used for acquiring corresponding digital signals from the emergency water valve, the power supply, the safety relay and the water supply pump motor respectively;
and the control module is used for judging the fault type of the continuous casting water crystallizing system according to the acquired digital signals and sending control signals to the accident water valve and the diesel engine according to the fault type so as to enable the accident water valve and the diesel engine to carry out state switching according to the control signals.
The embodiment of the invention also provides electronic equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the control method of the continuous casting crystal water system when executing the computer program.
The embodiment of the invention also provides a computer readable storage medium, which comprises a computer program, and the computer program controls the electronic equipment where the readable storage medium is located to execute the control method of the continuous casting crystal water system when running.
According to the control method, the control device and the electronic equipment for the continuous casting crystal water system, corresponding digital signals are collected from the accident water valve, the power supply, the safety relay and the water supply pump motor respectively, the fault type of the continuous casting crystal water system is judged according to the collected digital signals, then control signals are sent to the accident water valve and the diesel engine according to the fault type so that the accident water valve and the diesel engine can be switched in states according to the control signals, the reason for the abnormal action of the accident water valve can be judged according to the fault type, and the accident water valve and the diesel engine are controlled to be switched in states based on the fault type, so that the stable and safe operation of the continuous casting crystal water system can be guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a block diagram of an electronic device according to an embodiment of the present invention.
Fig. 2 is a block diagram of a continuous casting water crystallization system according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a control circuit of a safety relay according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a control circuit of an emergency water valve according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a control circuit of a diesel engine according to an embodiment of the present invention.
FIG. 6 is a flow chart of a control method for a continuous casting water crystallization system according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of another sub-step included in step S22 shown in fig. 6 according to an embodiment of the present invention.
Fig. 8 is a block diagram of a control device of a continuous casting crystal water system according to an embodiment of the present invention.
Icon:
10-an electronic device; 11-a memory; 12-a processor; 13-a network module;
21-a fault water valve; 211-emergency water valve induction coil; 212-normally open contact of emergency water valve control switch; 22-a power supply; 23-a safety relay; 231-first relay coil; 2311-first relay coil normally open contact; 2312-first relay normally closed contact; 232-second relay coil; 2321-second relay coil normally open contact; 2322-second relay normally closed contact; 24-water supply pump motor; 25-a diesel engine; 251-diesel engine stop switch normally closed contact; 252-diesel engine starting switch normally open contact; 26-high voltage control cabinet; 261-a first normally open contact of the high-voltage cabinet control loop; 262-high-voltage cabinet control circuit second normally open contact; 27-a pressure sensor;
30-a continuous casting crystal water system control device; 31-a digital signal acquisition module; 32-control module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The inventor finds that the existing control technology is difficult to ensure the stable and safe operation of a continuous casting and crystallizing water system. The inventor analyzes the circuit structure of the continuous casting water crystallizing system, finds that the main reason influencing the stable and safe operation of the continuous casting water crystallizing system is the abnormal action of an accident water valve, most of common methods for judging the abnormal action of the accident water valve adopt manual detection and judgment, but because the circuit structure of the continuous casting water crystallizing system is complex, the influence factors of the abnormal action of the accident water valve are more, the fault point is difficult to quickly and accurately find out by adopting the manual detection and judgment method, the fault overhauling and recovering time is further prolonged, and the stable and safe operation of the continuous casting water crystallizing system is difficult to ensure.
The above prior art solutions have shortcomings which are the results of practical and careful study of the inventor, and therefore, the discovery process of the above problems and the solutions proposed by the following embodiments of the present invention to the above problems should be the contribution of the inventor to the present invention in the course of the present invention.
Based on the research, the embodiment of the invention provides a control method and device for a continuous casting crystal water system and electronic equipment, which can judge the fault type of the continuous casting crystal water system according to acquired digital signals, then send control signals to an accident water valve and a diesel engine according to the fault type to enable the accident water valve and the diesel engine to switch states according to the control signals, judge the reason of abnormal action of the accident water valve according to the fault type, and control the accident water valve and the diesel engine to switch states based on the fault type, so that the stable and safe operation of the continuous casting crystal water system can be ensured.
Fig. 1 shows a block diagram of an electronic device 10 according to an embodiment of the present invention. The electronic device 10 in the embodiment of the present invention has functions of data storage, transmission, and processing, and as shown in fig. 1, the electronic device 10 includes: a memory 11, a processor 12, a network module 13 and a continuous casting crystal water system control device 30.
The memory 11, the processor 12 and the network module 13 are electrically connected directly or indirectly to realize data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The memory 11 stores a continuous casting crystal water system control device 30, the continuous casting crystal water system control device 30 includes at least one software function module which can be stored in the memory 11 in the form of software or firmware (firmware), and the processor 12 executes various function applications and data processing by running the software program and module stored in the memory 11, such as the continuous casting crystal water system control device 30 in the embodiment of the present invention, so as to implement the continuous casting crystal water system control method in the embodiment of the present invention.
The Memory 11 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like. The memory 11 is used for storing a program, and the processor 12 executes the program after receiving an execution instruction.
The processor 12 may be an integrated circuit chip having data processing capabilities. The Processor 12 may be a general-purpose Processor including a Central Processing Unit (CPU), a Network Processor (NP), and the like. The various methods, steps and logic blocks disclosed in embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The network module 13 is used for establishing communication connection between the electronic device 10 and other communication terminal devices through a network, and implementing transceiving operation of network signals and data. The network signal may include a wireless signal or a wired signal.
It will be appreciated that the configuration shown in FIG. 1 is merely illustrative and that electronic device 10 may include more or fewer components than shown in FIG. 1 or may have a different configuration than shown in FIG. 3. The components shown in fig. 1 may be implemented in hardware, software, or a combination thereof.
An embodiment of the present invention also provides a computer-readable storage medium, which includes a computer program. The computer program is executed to control the electronic device 10 in which the readable storage medium is located to perform the following continuous casting and crystallizing water system control method.
Alternatively, the electronic device 10 shown in fig. 1 may be a Programmable Logic Controller (PLC).
Referring to fig. 2, the electronic device 10 is electrically connected to an emergency water valve 21, a power supply 22, a safety relay 23, a water supply pump motor 24, a diesel engine 25, a high voltage control cabinet 26, and a pressure sensor 27 in the continuous casting crystal water system, respectively. The electronic device 10 can collect corresponding digital signals from the accident water valve 21, the power supply 22, the safety relay 23, the water supply pump motor 24, the diesel engine 25, the high-voltage Control cabinet 26 and the pressure sensor 27, perform logic judgment based on the collected digital signals, further judge the fault type of the continuous casting crystal water system causing the accident water valve 21 and the diesel engine 25 to be in an abnormal state, send a Control signal to the accident water valve 21 and the diesel engine 25 according to the judged fault type to enable the accident water valve 21 and the diesel engine 25 to perform state switching according to the Control signal, thereby realizing stable and safe operation of the continuous casting crystal water system, and in addition, the electronic device 10 can also display the judged fault type in a window Control Center (Windows Control Center, WinCC) to enable a user to quickly find a corresponding fault point according to the displayed fault type and maintain the fault point, further reducing the time of fault maintenance and recovery and further ensuring the stable and safe operation of the continuous casting crystal water system.
Referring to fig. 3, the safety relay 23 is linked with the first normally open contact 261 of the high-voltage cabinet control loop of the high-voltage control cabinet 26 and the second normally open contact 262 of the high-voltage cabinet control loop, and the safety relay 23 obtains electric energy from the Power supply 22, in this embodiment, the Power supply 22 is an Uninterruptible Power Supply (UPS). When and only when the first normally open contact 261 of the high-voltage board control loop and the second normally open contact 262 of the high-voltage board control loop are simultaneously attracted and the safety relay 23 can obtain electric energy from the power supply 22, the safety relay 23 is electrified, and at the moment, the first relay coil 231 and the second relay coil 232 of the safety relay 23 are electrified.
Referring to fig. 4 in an integrated manner, when the first relay coil 231 and the second relay coil 232 are powered on, the first relay coil normally-open contact 2311 and the second relay coil normally-open contact 2321 are attracted, the first relay coil normally-closed contact 2312 and the second relay coil normally-open contact 2322 are opened, the emergency water valve induction coil 211 in fig. 4 is powered on, and at this time, the emergency water valve 21 in fig. 2 is in a closed state.
Further, in fig. 5, the first relay coil normally closed contact 2312, the second relay coil normally open contact 2322 and the diesel engine starting switch normally open contact 252 are connected in parallel and then connected in series with the diesel engine stopping switch normally closed contact 251, and when the safety relay 23 is powered, the first relay coil normally closed contact 2312, the second relay coil normally open contact 2322 and the diesel engine starting switch normally open contact 252 are all opened, so that the diesel engine 25 is in a stop state.
Referring to fig. 2, the digital signal collected from the water supply pump motor 24 by the electronic device 10 is the sum sumA of the number num of the water supply pump motors 24 in the closed state and the current value of the water supply pump motors 24 in the closed state. The electronic device 10 may determine whether the water supply pump motor 24 is abnormal based on num and sumA, and then determine whether to open the emergency water valve 21 and the diesel engine 25 to realize the closed-circuit water supply to open-circuit water supply of the system.
As can be seen from fig. 2, 3, 4 and 5, the circuit of the continuous casting water crystallizing system is complex, and in some fault types, the emergency water valve 21 and the diesel engine 25 may operate abnormally (malfunction or do not operate), and at this time, if the judgment is performed by a common manual detection method, a lot of time is consumed, the maintenance time of the continuous casting water crystallizing system is prolonged, the stable and safe operation of the continuous casting water crystallizing system is affected, and a production accident may also occur. Therefore, in the embodiment, based on the logic judgment function of the electronic device 10, the logic judgment is continuously performed on various digital signals acquired from the continuous casting crystal water system, so that the fault type causing the abnormal operation of the emergency water valve 21 and the diesel engine 25 is quickly and accurately judged, and the emergency water valve 21 and the diesel engine 25 are controlled to perform state switching, so that on one hand, the stable and safe operation of the continuous casting crystal water system can be ensured, and on the other hand, the fault type can be displayed in WinCC to enable a user to quickly and accurately perform fault maintenance based on the displayed fault type.
FIG. 6 is a flow chart showing a control method of a continuous casting crystal water system according to an embodiment of the present invention. The method steps defined by the method-related flow, as applied to the electronic device 10, may be implemented by the processor 12. The specific process shown in fig. 6 will be described in detail below:
and step S21, acquiring corresponding digital signals from the emergency water valve, the power supply, the safety relay and the water supply pump motor respectively.
In this embodiment, the digital signals collected by the electronic device 10 are as follows:
the digital signal collected from the accident water valve 21 is a first digital signal sig 1;
the digital signal collected from the normally open contact of the main breaker incoming line relay of the power supply 22 is a second digital signal sig 2;
the digital signals collected from the first relay coil normally-open contact 2311 and the second relay coil normally-open contact 2321 of the safety relay 23 are third digital signals sig3 (please refer to fig. 4 in combination, the first relay coil normally-open contact 2311, the second relay coil normally-open contact 2321 and the emergency water valve induction coil 211 are connected in series);
the digital signal collected from the water supply pump motor 24 is the sum sumA of the number num of the water supply pump motors 24 in the closed state and the current value of the water supply pump motors 24 in the closed state;
the digital signal collected from the diesel engine 25 is a digital signal sigc representing the running or stopping of the diesel engine 25;
digital signals collected from the first normally open contact 261 and the second normally open contact 262 of the high-voltage cabinet control loop are KA;
the digital signal collected from the pressure sensor 27 provided at the water supply pipe of the water supply pump is the real-time pressure value Ft.
And step S22, judging the fault type of the continuous casting crystal water system according to the acquired digital signals, and sending control signals to the accident water valve and the diesel engine according to the fault type to enable the accident water valve and the diesel engine to switch states according to the control signals.
It can be understood that the accident water valve 21 and the diesel engine 25 may malfunction under some fault types that do not need to be operated, and may not operate under some fault types that need to be operated, so that the stable and safe operation of the continuous casting crystalline water system is seriously affected, and therefore, the fault type of the continuous casting crystalline water system needs to be judged according to the acquired digital signals, and control signals are sent to the accident water valve 21 and the diesel engine 25 according to the fault type to enable the accident water valve 21 and the diesel engine 25 to switch states according to the control signals, so that the stable and safe operation of the continuous casting crystalline water system is ensured.
Referring to fig. 7, in the present embodiment, one implementation manner of step S22 is illustrated by step S221, step S222, step S223, step S224, step S225, step S226, and step S227.
In this embodiment, the first set value is "0", the characterization contact or the switch is turned on, the second set value is "1", the characterization contact or the switch is turned on, x is a set value, y is a set current value, and z is a set pressure value, it can be understood that values of x, y, and z are adjusted according to actual conditions, in this embodiment, x may be 2, y may be 26A, and z may be 1.25 MPa.
Step S221, performing logic judgment on the acquired digital signal.
In this embodiment, the abnormal operating states obtained by the logic determination include, but are not limited to, the following five types:
case 1: the method includes the steps that sig1 is equal to "0", sig2 is equal to "1", sig3 is equal to "0", KA is equal to "0", num > is equal to x, sumA > is equal to y, and the characteristic that the first normally-open contact 261 and the second normally-open contact 262 of the high-voltage board control circuit are not attracted.
Case 2: sig1 is "0", sig2 is "0", sig3 is "0", KA is "1", num > is x, sumA > is y, and this characterizes the power supply abnormality of the power supply 22.
Case 3: the power supply system is characterized in that sig1 is equal to "0", sig2 is equal to "0", sig3 is equal to "0", KA is equal to "0", num > is equal to x, sumA > is equal to y, and the power supply of the power supply 22 is abnormal and the first normally-open contact 261 and the second normally-open contact 262 of the high-voltage board control circuit are not attracted.
Case 4: the water valve fault detection method is characterized in that the fault water valve 21 is characterized in that the sign 1 is equal to '0', the sign 2 is equal to '1', the sign 3 is equal to '1', the KA is equal to '1', the num > is equal to x, and the sumA > is equal to y.
Case 5: sig1 is "1", sig2 is "1", sig3 is "1", KA is "1", num < x, sumA > -y or sig1 is "1", sig2 is "1", sig3 is "1", KA is "1", num > is x, sumA < y or sig1 is "1", sig2 is "1", sig3 is "1", KA is "1", num < x, sumA < y, and indicates abnormality of the water supply pump motor.
It is to be understood that if the abnormal operation state is Case1, the process goes to step S222; if the abnormal working state is Case2, the process goes to step S223; if the abnormal working state is Case3, go to step S224; if the abnormal working state is Case4, turning to step S225; if the abnormal operation state is Case5, the process goes to step S226.
Step S222, generating and displaying first fault information of the high-voltage cabinet control loop fault, sending a first control signal to an accident water valve in an open state to enable the accident water valve to be switched from the open state to a closed state, and sending a second control signal to a diesel engine in a running state to enable the diesel engine to be switched from the running state to a stop state.
It can be understood that, if the power supply 22 is normal, the water supply pump motor 24 is normal, but the first normally open contact 261 of the high-voltage cabinet control circuit and the second normally open contact 262 of the high-voltage cabinet control circuit are not attracted, at this time, the safety relay 23 in fig. 3 is not powered, the first relay coil 231 and the second relay coil 232 are not powered, the first relay coil normally open contact 2311 and the second relay coil normally open contact 2321 in fig. 4 are opened, the emergency water valve induction coil 211 is powered off, the emergency water valve 21 is in an open state, the first relay coil normally closed contact 2312 and the second relay coil normally closed contact 2322 in fig. 5 are closed, and the diesel engine 25 is in a running state.
It should be noted that although the safety relay 23 is not energized at this time, the water supply pump motor 24 is in a normal state, and therefore, in this failure type, it is a malfunction that the emergency water valve 21 is in an open state and the diesel engine 25 is in an operating state.
At this time, the electronic device 10 generates first failure information of the high-voltage board control circuit failure, displays the first failure information in WinCC, transmits a first control signal to the emergency water valve 21 in the open state to switch the emergency water valve 21 from the open state to the closed state, and transmits a second control signal to the diesel engine 25 in the running state to switch the diesel engine 25 from the running state to the stopped state. Specifically, the electronic device 10 controls the normally open contact 212 of the emergency water valve control switch in fig. 4 to be closed so as to electrify the induction coil 211 of the emergency water valve, so that the emergency water valve 21 is switched from the open state to the closed state, the electronic device 10 determines z, and if z > is 1.25MPa, controls the normally closed contact 251 of the diesel engine stop switch in fig. 5 to be opened so as to switch the diesel engine 25 from the running state to the stop state.
Further, after the high-voltage cabinet control circuit is repaired, the first normally open contact 261 and the second normally open contact 262 of the high-voltage cabinet control circuit are attracted, the safety relay 23 in fig. 3 is electrified, the first relay coil 231 and the second relay coil 232 are electrified, the normally open contact 2311 and the normally open contact 2321 of the first relay coil in fig. 4 are closed, the emergency water valve induction coil 211 is electrified, the normally closed contact 2312 and the normally closed contact 2322 of the first relay coil in fig. 5 are disconnected, at the moment, the normally open contact 212 of the emergency water valve control switch in fig. 4 is disconnected, the normally closed contact 251 of the diesel engine stop switch in fig. 5 is closed, and the whole continuous casting water crystal system is restored to normal operation.
And step S223, generating and displaying second fault information of the fault of the normally open contact of the main breaker inlet wire relay of the power supply, sending a first control signal to the accident water valve in the open state to enable the accident water valve to be switched from the open state to the closed state, and sending a second control signal to the diesel engine in the running state to enable the diesel engine to be switched from the running state to the stop state.
It can be understood that, if the power supply 22 supplies power abnormally, the water supply pump motor 24 is normal, the first normally open contact 261 of the high-voltage board control loop and the second normally open contact 262 of the high-voltage board control loop are attracted, at this time, the safety relay 23 in fig. 3 is not powered, the first relay coil 231 and the second relay coil 232 are not powered, the first relay coil normally open contact 2311 and the second relay coil normally open contact 2321 in fig. 4 are opened, the emergency water valve induction coil 211 is powered off, the emergency water valve 21 is in an open state, the first relay coil normally closed contact 2312 and the second relay coil normally closed contact 2322 in fig. 5 are closed, and the diesel engine 25 is in a running state.
It should be noted that although the safety relay 23 is not energized at this time, the water supply pump motor 24 is also in a normal state, and therefore, in this fault type, it is a malfunction that the emergency water valve 21 is in an open state and the diesel engine 25 is in an operating state.
At this time, the electronic device 10 generates and displays second fault information of the fault of the normally open contact of the main breaker inlet line relay of the power supply in WinCC, sends a first control signal to the emergency water valve 21 in the open state to switch the emergency water valve 21 from the open state to the closed state, and sends a second control signal to the diesel engine 25 in the running state to switch the diesel engine 25 from the running state to the stop state. Specifically, the electronic device 10 controls the normally open contact 212 of the emergency water valve control switch in fig. 4 to be closed so as to electrify the induction coil 211 of the emergency water valve, so that the emergency water valve 21 is switched from the open state to the closed state, the electronic device 10 determines z, and if z > is 1.25MPa, controls the normally closed contact 251 of the diesel engine stop switch in fig. 5 to be opened so as to switch the diesel engine 25 from the running state to the stop state.
Further, after the power supply 22 is overhauled, the normally open contact of the incoming line relay of the main circuit breaker of the power supply 22 is closed, the safety relay 23 in fig. 3 is powered, the first relay coil 231 and the second relay coil 232 are powered, the normally open contact 2311 of the first relay coil and the normally open contact 2321 of the second relay coil in fig. 4 are closed, the emergency water valve induction coil 211 is powered, the normally closed contact 2312 of the first relay coil and the normally closed contact 2322 of the second relay coil in fig. 5 are disconnected, at this time, the normally open contact 212 of the emergency water valve control switch in fig. 4 is disconnected, the normally closed contact 251 of the stop switch of the diesel engine in fig. 5 is closed, and the whole continuous casting water crystal system is recovered to normally operate.
Optionally, power supply 22's power supply is unusual to be divided into two kinds of condition, when power supply 22's main circuit breaker inlet wire relay normally open contact was not inhaled, can judge that power supply 22's inlet wire power supply is unusual, if power supply 22's battery had the electricity this moment, safety relay 23 also can get electricity this moment, electronic equipment also can generate main circuit breaker inlet wire relay normally open contact and do not inhale the prompt message that nevertheless power supply 22's battery has the electricity and show in WinCC simultaneously.
And S224, generating and displaying fourth fault information of the fault of the normally open contact of the main breaker inlet wire relay of the power supply and the fault of the high-voltage cabinet control loop, sending a first control signal to an accident water valve in an open state to enable the accident water valve to be switched from the open state to a closed state, and sending a second control signal to a diesel engine in a running state to enable the diesel engine to be switched from the running state to a stop state.
It can be understood that, if the power supply 22 supplies power abnormally, the water supply pump motor 24 is normal, the first normally open contact 261 of the high-voltage board control loop and the second normally open contact 262 of the high-voltage board control loop are not attracted, at this time, the safety relay 23 in fig. 3 is not powered, the first relay coil 231 and the second relay coil 232 are not powered, the first relay coil normally open contact 2311 and the second relay coil normally open contact 2321 in fig. 4 are opened, the emergency water valve induction coil 211 is powered off, the emergency water valve 21 is in an open state, the first relay coil normally closed contact 2312 and the second relay coil normally closed contact 2322 in fig. 5 are closed, and the diesel engine 25 is in a running state.
It should be noted that although the safety relay 23 is not energized at this time, the water supply pump motor 24 is also in a normal state, and therefore, in this fault type, it is a malfunction that the emergency water valve 21 is in an open state and the diesel engine 25 is in an operating state.
At this time, the electronic device 10 generates fourth fault information of a fault of a normally open contact of a main breaker inlet relay of the power supply and a fault of a high-voltage cabinet control loop, displays the fourth fault information in WinCC, sends a first control signal to the accident water valve 21 in an open state to switch the accident water valve 21 from the open state to a closed state, and sends a second control signal to the diesel engine 25 in a running state to switch the diesel engine 25 from the running state to a stop state. Specifically, the electronic device 10 controls the normally open contact 212 of the emergency water valve control switch in fig. 4 to be closed so as to electrify the induction coil 211 of the emergency water valve, so that the emergency water valve 21 is switched from the open state to the closed state, the electronic device 10 determines z, and if z > is 1.25MPa, controls the normally closed contact 251 of the diesel engine stop switch in fig. 5 to be opened so as to switch the diesel engine 25 from the running state to the stop state.
Further, after the power supply 22 and the high-voltage cabinet control circuit are overhauled, the main breaker incoming line relay normally-open contact of the power supply 22 is attracted, the first normally-open contact 261 of the high-voltage cabinet control circuit and the second normally-open contact 262 of the high-voltage cabinet control circuit are attracted, the safety relay 23 in fig. 3 is electrified, the first relay coil 231 and the second relay coil 232 are electrified, the first relay coil normally-open contact 2311 and the second relay coil normally-open contact 2321 in fig. 4 are closed, the emergency water valve induction coil 211 is electrified, the first relay coil normally-closed contact 2312 and the second relay coil normally-closed contact 2322 in fig. 5 are disconnected, at the moment, the emergency water valve control switch normally-open contact 212 in fig. 4 is disconnected, the diesel engine stop switch normally-closed contact 251 in fig. 5 is closed, and the whole continuous casting water crystal system returns to normal operation.
Step S225, a first control signal is sent to the accident water valve in the open state to enable the accident water valve to be switched from the open state to the closed state, and a second control signal is sent to the diesel engine in the running state to enable the diesel engine to be switched from the running state to the stop state.
It can be understood that, if the power supply 22 supplies power normally, the safety relay 23 is normal, the water supply pump motor 24 is normal, the first normally open contact 261 of the high-voltage board control loop and the second normally open contact 262 of the high-voltage board control loop are attracted, at this moment, the whole continuous casting crystal water system is in a normal working state, if the accident water valve 21 is in an open state and the diesel engine 25 is in a running state at this moment, it indicates that the accident water valve 21 and the diesel engine 25 generate false operation, the electronic device 10 controls the accident water valve 21 to close and judges z, and if z > is 1.25MPa, the diesel engine 25 is controlled to be switched from the running state to the stop.
In step S226, third failure information indicating a failure of the water supply pump motor is generated and displayed, a third control signal is transmitted to the emergency water valve in the closed state to switch the emergency water valve from the closed state to the open state, and a fourth control signal is transmitted to the diesel engine in the stopped state to switch the diesel engine from the stopped state to the operating state.
It can be understood that if the power supply 22 supplies power normally, the safety relay 23 is normal, the first normally open contact 261 of the high-voltage cabinet control loop and the second normally open contact 262 of the high-voltage cabinet control loop are closed, but the power supply of the water supply pump motor 24 is abnormal, then the emergency water valve 21 and the diesel engine 25 need to be opened.
In the present embodiment, the determination conditions for the power supply abnormality of the water supply pump motor 24 are: if num > 2 and sumA > 26A are not satisfied, it is determined that the water supply pump motor 24 is abnormally supplied.
Specifically, the electronic device 10 sends a third control signal to the emergency water valve 21 in the closed state to switch the emergency water valve 21 from the closed state to the open state, and sends a fourth control signal to the diesel engine 25 in the stopped state to switch the diesel engine 25 from the stopped state to the operating state, please refer to fig. 5 in combination, the electronic device 10 controls the diesel engine starting switch normally-open contact 252 to be closed to switch the diesel engine 25 from the stopped state to the operating state.
Further, the electronic device 10 generates third failure information of the failure of the water supply pump motor and displays it in WinCC.
And step S227, when the water supply pump motor is recovered to be normal, responding to a reset instruction input by a user, switching the accident water valve in the open state to the closed state according to the reset instruction, and switching the diesel engine in the running state to the stop state.
It can be understood that, when the water supply pump motor 24 returns to the normal state (num > is 2 and sumA > is 26A), the user may click the button for returning to the normal state of the water pump power supply on the screen of the main control room to input the reset instruction to the electronic device 10, and the electronic device 10 may switch the emergency water valve 21 in the open state to the closed state and switch the diesel engine 25 in the running state to the stop state after receiving the reset instruction.
By the method, on the basis of not additionally increasing equipment, through logic control, the automatic control degree, automatic fault judgment and automatic switching control are improved, the casting machine casting failure times are reduced, the equipment fault rate is reduced, the fault processing time is reduced, the stable and safe operation of the continuous casting crystal water system is ensured, the normal control can be automatically recovered after the fault processing is completed, and the influence on the continuous casting crystal water system is greatly reduced. In addition, the influence time of the equipment fault on the continuous casting crystal water system is calculated once every 10 years, the pulling speed is reduced, the casting is stopped, the loss of each accident is calculated according to 5 ten thousand yuan, and 0.5 ten thousand yuan can be saved every year.
On the basis of the above, as shown in fig. 8, an embodiment of the present invention provides a block diagram of a continuous casting crystal water system control device 30, where the continuous casting crystal water system control device 30 includes: a digital signal acquisition module 31 and a control module 32.
And the digital signal acquisition module 31 is used for acquiring corresponding digital signals from the emergency water valve, the power supply, the safety relay and the water supply pump motor respectively.
Since the digital signal acquisition module 31 is similar to the implementation principle of step S21 in fig. 6, it will not be further described here.
And the control module 32 is used for judging the fault type of the continuous casting water crystallizing system according to the acquired digital signals and sending control signals to the accident water valve and the diesel engine according to the fault type so as to enable the accident water valve and the diesel engine to carry out state switching according to the control signals.
Since the control module 32 is similar to the implementation principle of step S22 in fig. 6, it will not be further described here.
In summary, the control method, the control device and the electronic equipment for the continuous casting crystal water system provided by the embodiment of the invention can judge the reason of the abnormal action of the accident water valve according to the fault type, and control the state switching of the accident water valve and the diesel engine based on the fault type, so that the stable and safe operation of the continuous casting crystal water system can be ensured.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus and method embodiments described above are illustrative only, as the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention or a part thereof, which essentially contributes to the prior art, can be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, an electronic device 10, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A control method of a continuous casting crystal water system is characterized in that the control method is applied to electronic equipment, and the electronic equipment is respectively and electrically connected with an accident water valve, a power supply, a safety relay, a water supply pump motor and a diesel engine in the continuous casting crystal water system; the continuous casting crystal water system also comprises a pressure sensor arranged at a water supply pipe of the water supply pump, and the pressure sensor is electrically connected with the electronic equipment; the safety relay is electrically connected with the diesel engine; the method comprises the following steps:
collecting corresponding digital signals from the emergency water valve, the power supply, the safety relay and the water supply pump motor respectively; the emergency water valve is characterized in that a digital signal acquired from the emergency water valve is a first digital signal, a digital signal acquired from the power supply is a second digital signal, a digital signal acquired from the safety relay is a third digital signal, and the digital signal acquired from the water supply pump motor is the sum of the number of water supply pump motors in a closed state and the current value of the water supply pump motors in the closed state;
judging the fault type of the continuous casting crystal water system according to the acquired digital signal, and sending a control signal to the accident water valve and the diesel engine according to the fault type to enable the accident water valve and the diesel engine to switch states according to the control signal, wherein the method comprises the following steps:
when the first digital signal and the third digital signal are a first set value, the second digital signal is a second set value, the quantity reaches a set value, and the sum of the current values reaches a set current value, the safety relay is judged to be in a fault state, and a first control signal is sent to an accident water valve in an open state to enable the accident water valve to be switched from the open state to a closed state; acquiring a real-time pressure value sent by the pressure sensor, and sending a second control signal to the diesel engine in the running state when the real-time pressure value reaches a set pressure value so as to switch the diesel engine from the running state to the stopping state; wherein the diesel engine is in an operating state when the safety relay is in a fault state.
2. The control method for the continuous casting crystal water system according to claim 1, wherein the electronic device is electrically connected with a normally open contact of a relay coil of the safety relay, and the third digital signal is a digital signal of the normally open contact of the relay coil;
the electronic equipment is electrically connected with a normally open contact of a high-voltage cabinet control circuit in the continuous casting crystal water system, and the safety relay is linked with the normally open contact of the high-voltage cabinet control circuit;
the method further comprises the following steps:
and when the safety relay is judged to be in a fault state, acquiring a digital signal of a normally open contact of the high-voltage cabinet control circuit, and if the digital signal of the normally open contact of the high-voltage cabinet control circuit is the first set value, generating and displaying first fault information of the fault of the high-voltage cabinet control circuit.
3. The control method for the continuous casting and crystallizing water system as claimed in claim 1, wherein the electronic equipment is electrically connected with a normally open contact of a main breaker incoming line relay of the power supply, and the second digital signal is a digital signal collected by the electronic equipment from the normally open contact of the main breaker incoming line relay of the power supply;
the step of judging the fault type of the continuous casting crystal water system according to the acquired digital signal and sending a control signal to the accident water valve and the diesel engine according to the fault type to enable the accident water valve and the diesel engine to switch states according to the control signal further comprises the following steps:
when the first digital signal, the second digital signal and the third digital signal are the first set value, the number reaches the set numerical value and the sum of the current values reaches the set current value, the safety relay is judged to be in a fault state, second fault information of the fault of the normally open contact of the main breaker inlet wire relay of the power supply is generated and displayed, and the first control signal is sent to the accident water valve in an open state to enable the accident water valve to be switched from the open state to a closed state; and acquiring a real-time pressure value sent by the pressure sensor, and sending the second control signal to the diesel engine in the running state when the real-time pressure value reaches the set pressure value so as to switch the diesel engine from the running state to the stop state.
4. The method for controlling the continuous casting crystal water system according to claim 1, wherein the step of judging the fault type of the continuous casting crystal water system according to the collected digital signals and sending control signals to the accident water valve and the diesel engine according to the fault type to enable the accident water valve and the diesel engine to switch states according to the control signals further comprises the steps of:
when the first digital signal is the first set value, the second digital signal and the third digital signal are the second set value, the quantity reaches the set numerical value and the sum of the current values reaches the set current value, the first control signal is sent to the accident water valve in an open state to enable the accident water valve to be switched from the open state to a closed state; and acquiring a real-time pressure value sent by the pressure sensor, and sending the second control signal to the diesel engine in the running state when the real-time pressure value reaches the set pressure value so as to switch the diesel engine from the running state to the stop state.
5. The method for controlling the continuous casting crystal water system according to claim 1, wherein the step of judging the fault type of the continuous casting crystal water system according to the collected digital signals and sending control signals to the accident water valve and the diesel engine according to the fault type to enable the accident water valve and the diesel engine to switch states according to the control signals further comprises the steps of:
when the first digital signal, the second digital signal and the third digital signal are all the second set value, the number reaches the set value and the sum of the current values does not reach the set current value, or
When the first digital signal, the second digital signal and the third digital signal are all the second set value, the sum of the current values reaches the set current value and the number does not reach the set value, or
When the first digital signal, the second digital signal and the third digital signal are all the second set value, the number does not reach the set numerical value and the sum of the current values does not reach the set current value,
generating and displaying third fault information of the water supply pump motor fault; and sending a third control signal to the accident water valve in the closed state to switch the accident water valve from the closed state to the open state, and sending a fourth control signal to the diesel engine in the stopped state to switch the diesel engine from the stopped state to the running state.
6. The continuous casting crystalline water system control method as claimed in claim 5, further comprising:
and when the quantity reaches the set numerical value and the sum of the current values reaches the set current value, responding to a reset instruction input by a user, switching the emergency water valve in an open state into a closed state according to the reset instruction, and switching the diesel engine in a running state into a stop state.
7. A continuous casting crystal water system control device is characterized in that the control device is applied to electronic equipment, and the electronic equipment is respectively and electrically connected with an accident water valve, a power supply, a safety relay, a water supply pump motor and a diesel engine in a continuous casting crystal water system; the continuous casting crystal water system also comprises a pressure sensor arranged at a water supply pipe of the water supply pump, and the pressure sensor is electrically connected with the electronic equipment; the safety relay is electrically connected with the diesel engine; the device comprises:
the digital signal acquisition module is used for acquiring corresponding digital signals from the emergency water valve, the power supply, the safety relay and the water supply pump motor respectively; the emergency water valve is characterized in that a digital signal acquired from the emergency water valve is a first digital signal, a digital signal acquired from the power supply is a second digital signal, a digital signal acquired from the safety relay is a third digital signal, and the digital signal acquired from the water supply pump motor is the sum of the number of water supply pump motors in a closed state and the current value of the water supply pump motors in the closed state;
the control module is used for judging the fault type of the continuous casting water crystallizing system according to the collected digital signals and sending control signals to the accident water valve and the diesel engine according to the fault type so as to enable the accident water valve and the diesel engine to carry out state switching according to the control signals, and the control module comprises:
when the first digital signal and the third digital signal are a first set value, the second digital signal is a second set value, the quantity reaches a set value, and the sum of the current values reaches a set current value, the safety relay is judged to be in a fault state, and a first control signal is sent to an accident water valve in an open state to enable the accident water valve to be switched from the open state to a closed state; acquiring a real-time pressure value sent by the pressure sensor, and sending a second control signal to the diesel engine in the running state when the real-time pressure value reaches a set pressure value so as to switch the diesel engine from the running state to the stopping state; wherein the diesel engine is in an operating state when the safety relay is in a fault state.
8. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the continuous casting crystal water system control method of any one of claims 1 to 6 when executing the computer program.
9. A computer-readable storage medium, comprising a computer program that, when executed, controls an electronic device in which the computer-readable storage medium is located to perform the method for controlling a continuous casting crystal water system according to any one of claims 1 to 6.
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