CN108806378A - Ship oil separator automatic control system simulator - Google Patents
Ship oil separator automatic control system simulator Download PDFInfo
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- CN108806378A CN108806378A CN201810466575.0A CN201810466575A CN108806378A CN 108806378 A CN108806378 A CN 108806378A CN 201810466575 A CN201810466575 A CN 201810466575A CN 108806378 A CN108806378 A CN 108806378A
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- G—PHYSICS
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- G09B9/00—Simulators for teaching or training purposes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G—PHYSICS
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- G06F8/00—Arrangements for software engineering
- G06F8/30—Creation or generation of source code
- G06F8/31—Programming languages or programming paradigms
- G06F8/315—Object-oriented languages
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- G—PHYSICS
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- G06F8/38—Creation or generation of source code for implementing user interfaces
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Abstract
The present invention proposes a kind of ship oil separator automatic control system simulator, realizes the emulation and simulation of the ship oil separator automatic control system course of work, is suitable for teaching experiment and operates.The present invention is combined using software with hardware.Software includes centrifugal oil separator prototype software, centrifugal oil separator job control software and communication interface routine.Hardware includes mainly electric control box and system imitation screen.The foundation and solution of centrifugal oil separator prototype software implementation model.Centrifugal oil separator job control software realizes the job control process of centrifugal oil separator system using two-level nested finite state machine technology.Realize that data acquisition, graphic control panel computer are used for running software and system operatio using PLC module in electric control box.System imitation screen is realized with software synchronization, dynamically shows centrifugal oil separator System Working Principle.The course of work of true reappearance centrifugal oil separator system of the present invention understands the structure and operation principle of centrifugal oil separator system, exercise student ' actual operational capacity convenient for student.
Description
Technical field：
The present invention is that a kind of ship oil separator automatically controls simulator, is suitable for teaching experiment and operates and train.
Background technology：
Oil pollution from vessels is proposed with the environmental consciousness and the constantly enhancing of energy saving consciousness, International Maritime Organization IMO of people
Higher requirement.Bunker oil purifies the discharge that can either reduce exhaust emission, reduces the pollution to environment, and can ensure
The steady running of ship power system extends the life cycle of marine main engine.Ship oil separator is in marine fuel purification system
Most important component part is familiar with the structure and operation principle of ship oil separator, tempers the operational capacity of centrifugal oil separator, exist to student
The operation of centrifugal oil separator is laid a solid foundation on practical ship.
Automatic control technology is one of 21 century most important technology, each neck such as technology, production, military affairs, management, life
Domain all be unable to do without automatic control technology.Automatic control technology has been come by the automatic control system with certain control function
At certain control task, ensure that some process is carried out according to anticipation, or realize some preset target.Emulation technology is in terms of
Calculation machine and special equipment are tool, and dynamic test is carried out to system that is actual or imagining using system model.In conjunction with automatic control
Technology processed and computer simulation technique develop a kind of ship oil separator and automatically control simulator, can realize ship oil separator
Automatically control a point emulation and simulation for the oily course of work, the operation principle and process of true reappearance centrifugal oil separator.
Currently, the simulator secondary development difficulty of marine fuel oil centrifugal oil separator analogue system based on hardware, easy break-down,
Maintenance cost is high.Centrifugal oil separator analogue system and the true operation of pure software system differ greatly, the practical operation to exercise student '
Ability helps little.Half centrifugal oil separator analogue system combination Hardware & software system in kind overcomes drawbacks described above, can simulate true
Real operating environment and the course of work for truly reflecting centrifugal oil separator system.The present invention is semi-matter simulating system, is different from existing
Purely manual operation semi-matter simulating system, advantage is to combine automatic control technology, can not only realize and manually control point
The simulation and emulation of oil machine control system, and can realize point oil for automatically controlling oil separator control system and emulation, it reduces
Artificial control and operation error.
Invention content：
The present invention proposes that a kind of ship oil separator automatically controls simulator, is suitable for teaching experiment and operates.The present invention being capable of mould
Quasi- true operation environment and truly reproduction centrifugal oil separator System Working Principle and the course of work, or even reproduce the internal junction of centrifugal oil separator
The internal actions of centrifugal oil separator in structure and the course of work.Technical scheme is as follows：
It includes centrifugal oil separator prototype software, centrifugal oil separator job control software, communication that a kind of ship oil separator, which automatically controls simulator,
Interface software, system imitation screen and electric control box.The present invention realizes centrifugal oil separator and manually controls process, process simulation emulation work(
Energy, malfunction coefficient function and parameter setting function, also especially realize simulation and the fault setting of centrifugal oil separator automatic control process
Function.
Centrifugal oil separator prototype software in the present invention is that centrifugal oil separator model, motor model, oil temperature are established in prototype software
A series of mathematical models such as model, pipeline model, water model and deslagging model（Model accuracy meets observation and requires）, control mould
Type primary condition and boundary condition solve mathematical model using 4 rank runge kutta methods, and result of calculation are output to centrifugal oil separator work
Make control software.
Centrifugal oil separator job control software in the present invention realizes the control of centrifugal oil separator using two-level nested finite state machine technology
Process processed.First order state of a control include waitings, pretrigger, manually boot, automatically start, recycle, conversion, stopping and centrifugal oil separator
State etc..Second level state of a control includes manually booting sub- state, automatic promoter state and the sub- state of centrifugal oil separator.Turn in state
When changing, when first order state has corresponding sub- state, the sub- state in the second level can be directly entered according to switch condition.State it
Between conversion according to prototype software pass through after calculating be passed to signal.
Communication interface routine in the present invention be centrifugal oil separator prototype software, centrifugal oil separator job control software and PLC module it
Between offer communication interface is provided.Signal procedure is completed to communicate with the data of PLC module by ethernet module, reads or writes
Enter each input/output point.For the present invention using buffering area is set in PLC module, host computer reads and writes buffering area by Ethernet；
Peripheral hardware is inputted write-in buffering area by PLC program, output is write in peripheral hardware, this communication mode flexibility is big, and communication speed
Soon.
Centrifugal oil separator prototype software in the present invention is for centrifugal oil separator job control software service, for providing control software
Required various signals, and the instruction that control software is sent out is received, it is calculated accordingly, obtains believable result.This
Two softwares determine the quantity of the quantity and PLC module terminal of the input/output end port of system.
System imitation screen in the present invention is that ship oil separator automatic control system schematic diagram is plotted in mosaic displaying
On plate, realize Dynamic Display centrifugal oil separator oil, water system operation principle, convenient for each details during observation operation principle.
Electric control box in the present invention include 10.1 cun of graphic control panel computers, PLC module, one piece of ammeter,
One power switch and an emergency button.Graphic control panel computer provides pure soft running environment, soft for centrifugal oil separator model
The operation of part, centrifugal oil separator job control software and communication interface routine.Touch screen industrial computer of the software installation in control cabinet
On, not only have the function of display, but also runs software and can realize operation to system, there is good man-machine interaction.
PLC module is combined acquisition and the data interactive function of realization data with ethernet communication module.Ammeter shows centrifugal oil separator horse
The real-time working electric current reached, emergency button are used in emergency case, termination system work.
Software in the present invention is to be based on object oriented language Visual C#, and the desktop of GDI+ technological development is combined to answer
With program so that software is not only with good expansibility, but also system operatio interface is clear, easily operated.
Description of the drawings：
Fig. 1 is the systematic schematic diagram of the present invention；
Fig. 2 is the membership credentials figure of software in the present invention；
Fig. 3 is centrifugal oil separator prototype software work flow diagram in the present invention；
Fig. 4 is the state transition logic figure of centrifugal oil separator job control software realization in the present invention；
Fig. 5 and Fig. 6 is the state transition condition flow chart in the present invention；
Fig. 7 is the software communication figure in the present invention；
Fig. 8 is system imitation screen in the present invention；
Fig. 9 is the device of the invention layout drawing.
Title in Fig. 2 is described as follows：HMI- human-computer interaction interfaces；In Controler- centrifugal oil separator job control softwares
Control class；Model class in PurModelClass- centrifugal oil separator prototype softwares；PLC Comm-PLC modules；Config- configuration texts
Part.
The title of Fig. 3 is described as follows：The startup method of void Start ()-model；Void ModelInput ()-model
Input method；The initial method of void InitializeModel ()-model；Void modelEquation ()-model
Computational methods；Void dataoutput ()-export result to centrifugal oil separator job control software；void setplcoutdata
()-exports result to PLC module.
Description of symbols in Fig. 8 is as follows：1- compressed air circuit electromagnetic valve groups；2-LED indicator lights；3- discharge pressure tables；
4- absolute oil outlet pressures；5- working water valve groups；6- potentiometers（Instead of vibrating sensor）；7- end cap interlock switches；8- knobs are opened
It closes（Instead of valve）；The measured value of pressure gauge P1, temperature sensor TT1, TT2, moisture transducer MT, velocity sensor ST in figure
Simulation result is calculated by centrifugal oil separator prototype software, need not directly measure.
Specific implementation measure：
The present invention is by centrifugal oil separator prototype software, centrifugal oil separator job control software, communication interface software, system imitation screen and electric-controlled
Case composition processed.
The system realization principle of the present invention is as shown in Figure 1, the core of simulator is centrifugal oil separator prototype software and centrifugal oil separator
Job control software, the two softwares determine the input/output quantity of system.Centrifugal oil separator prototype software is worked for centrifugal oil separator
Control software service, for providing centrifugal oil separator job control software required various signals, and receives control software and sent out
The instruction gone out, is calculated accordingly, obtains believable result.Centrifugal oil separator control software realizes the order for receiving operator, and
Order is sent to centrifugal oil separator prototype software to be analyzed and calculated, the analysis of centrifugal oil separator prototype software and result of calculation are converted
It is sent to PLC module at corresponding instruction, realizes the control of the centrifugal oil separator course of work.
Communication interface routine in the present invention realizes centrifugal oil separator prototype software, centrifugal oil separator job control software and PLC moulds
Being in communication with each other between block.
The interface of software and operational controls realize the drafting of control using GDI+ technologies in the present invention, including button, pipeline,
The controls such as valve member and centrifugal oil separator, using paintbrush class（Pen classes）With painting canvas class（Graphic classes）Accurate Drawing, can clear performance system
The fundamental diagram of system can also show the internal structure of centrifugal oil separator so that system is convenient for observation and operation.
Membership credentials between centrifugal oil separator prototype software, centrifugal oil separator job control software and communication interface routine are realized as schemed
2.First, HMI of the operator in industrial computer（Human-computer interaction interface）On operational order to be sent into centrifugal oil separator job control soft
Controler classes in part（Control class）；Then, Controler classes convert instructions into parameter and are passed to centrifugal oil separator prototype software
In PurModelClass classes（Model class）, the analysis and calculating of implementation model and result is passed in PurModelClass classes
Enter PLC module and configuration file.
Centrifugal oil separator working model software function in the present invention：Centrifugal oil separator working model software includes system diagram and parameter
Show two interfaces.System diagram interface is for the course of work of the Dynamic Announce centrifugal oil separator, course of work of fuel pipe, pneumatic
The course of work of control piper and the course of work of working water, and it is capable of the ratio of Dynamic Announce centrifugal oil separator internal fuel and moisture
Example variation.Since fuel oil to be separated needs the temperature for having certain before entering centrifugal oil separator separation, so system diagram interface
It further include the circulating-heating process of fuel oil to be separated.It is separately installed with valve on oil circuit, the gentle road in water route, valve can be manual
It is turned on and off by operating personnel's control under pattern.Parameter display interface can realize rotating speed, electric current, oil temperature, the water of centrifugal oil separator
Point, the parameter of a series of physical change procedure such as deslagging shows.In prototype software, by establishing centrifugal oil separator model, motor mould
A series of mathematical models such as type, oil temperature model, pipeline model, water model and deslagging model（Model accuracy, which meets observation, to be wanted
It asks）, control includes steam pressure, fuel inlet temperature, fuel moisture content, fuel density, the fuel oil trade mark, working water pressure, sky
The model boundaries condition such as atmospheric pressure, and mathematical model is solved using 4 rank runge kutta methods, realize that the dynamic of Parameters variation is aobvious
Show.
The realization method of centrifugal oil separator prototype software：The model of centrifugal oil separator is mainly by PurModelClass class implementation models
Start, stop, initialization and data are output and input, timing function Tick () is realized using Controler classes, in real time
Refresh and receive parameter, the conversion of state is realized according to parameter setting state.The calculating of model uses runge kutta method,
It is completed in modelEquation () method.In centrifugal oil separator model class PurModelClass, Start () is called to start first
Model, the then initialization operation initializeModel () of calling model input method modelInput () implementation model,
Initial value is assigned to model, finally modelEquation () method is called to realize the calculating to model.Result after calculating
It is output to control software via dataoutput () method, and calls setplcoutdata () method that result is sent into PLC
Module buffer area.Stop () method implementation model, which calculates, to be terminated.The realization method of centrifugal oil separator prototype software is as shown in figure 3, point oil
The realization method partial code of machine model class is as follows：
classPurModelClass
{
Public void Start () { } // Boot Model
Public void Stop () { } // stopping model
Private void initializeModel () { } // initialization model
The input of private void modelInput () { } // model
Private void modelEquation () { } // model calculates
Private void setplcoutdata () { } //plc communication datas
Private void dataoutput () { } // model output
}
The input of centrifugal oil separator prototype software includes the on off state of valve in centrifugal oil separator system, the operating status of pumping, steam, sky
The original state of gas and water, personnel are to the manipulation of control panel, the output of control software.The output of prototype software（According to reality
The sensor of system）Including：Absolute oil moisture, oil pressure to be divided, oil temperature to be divided, discharge pressure, is divided absolute oil outlet pressure
Oil machine rate pattern software by interface software obtain valve switch state and pumping running state information, output pipe state and
Each analog parameter.
The function of centrifugal oil separator job control software：The simulation of centrifugal oil separator job control software realization centrifugal oil separator controls and control
Logical transition.Centrifugal oil separator job control software receives the control command of operation panel, monitoring absolute oil moisture, absolute oil outlet pressure
The biographies such as power, oil pressure to be divided, oil temperature to be divided, discharge pressure, centrifugal oil separator speed, centrifugal oil separator vibration, end cap interlock switch state
Sensor signal, controls the action of each solenoid valve, simulate to centrifugal oil separator carry out manually, it is automatic, emergent etc. it is various in the case of control
Process.
Centrifugal oil separator job control software includes operation panel interface, control flow status display interface, parameter setting interface
With fault setting interface.Operation panel interface is divided into three display interface, main function button and supplemental button parts.Wherein main work(
Can button include the start-stop button of centrifugal oil separator, working water is released the button, deslagging is released the button, alarm button, remote control and
Three displays that normal operating conditions whether is in for centrifugal oil separator, heater and oil feed pump.One is arranged on each button
Whether the display lamp of LED is used to refer to work normally by equipment after lower button.Supplemental button includes upper select button, carriage return
Button, return push-button and digital button etc..
On operation panel draw a special relatively small display interface, for show centrifugal oil separator working condition,
Mode of operation and malfunction coefficient of button etc., for example when system is in idle state, show " Standstill！"；Occurring
When failure, show " Alarm+alarm parameters ".Actions menu is multilayer, nesting；This interlayer can move up and down, different layers
Between can enter lower layer or return upper layer, be unable to cross-layer.
Actions menu realization method：Actions menu is described using multi-branch tree data structure, and root node does not have actual content, only
It is shown for recycling.Each menu is a node, including father node and child node chained list（ChildrenNodeList classes）.Letter
Breath and the instruction for handling receiving include：Return is returned, MoveUp is moved up, moves down MoveDown and carriage return Enter.Cause
Event：Including moving up and down in layer：Cause using when moving up and down instruction；The variation of level is instructed using returning with carriage return
Shi Yinfa.Notify panel updating to show by the change event of actions menu, each layer will show current node information and
The information of the information of child node, child node rolls, and the information of father node is shown in always the first row.
The control logic figure of control flow interface display system and being capable of the current working condition of Dynamic Announce centrifugal oil separator.
Parameter setting interface includes the detail parameters such as design parameter, such as the rotating speed of centrifugal oil separator, separator disk size of each equipment in system.
There are one considerable advantages for the parameter setting function tool of the present invention, i.e., the parameter of a certain component in adjustment system ought be needed to carry out newly
When emulation, it is only necessary to make corresponding setting in parameter setting interface and can be realized, without more exchange device.
The realization method of centrifugal oil separator job control software：Centrifugal oil separator job control software mainly uses the limited shape of two-level nested
State machine technology realizes the control to the centrifugal oil separator course of work.First order state is controlled by abstract base class ContolState classes, by
Each derived class realizes, including wait state StandstillState classes, pre-actuated state PreStartState classes, manually boots
State ManualStartState classes, automatic starting state AutoStartState classes, recurrent state
RecirculationState classes, transition status TransitionState classes and centrifugal oil separator state SeperationState classes,
Inheritance code is as follows：
abstract class ContolState{}
classStandstillState : ContolState{}
classPreStartState : ContolState{}
classManualStartState : ContolState{}
classAutoStartState : ContolState{}
classRecirculationState : ContolState{}
classTransitionState : ContolState{}
classSeperationState : ContolState{}
Second level state is controlled by the base class for being abstracted sub- state, is realized by its derived class.Automatically the sub- state started
AutoStartSubState classes, by its derived class oil pump automatic starting state
FeedPumpStartingAutoStartSubState classes, heater complete automatic starting state
HeaterStartedAutoStartSubState classes, centrifugal oil separator are just in starting state
SeperatorStartingAutoStartSubState classes and centrifugal oil separator complete starting state
SeperatorStartedAutoStartSubState classes are realized.Manually boot sub- state ManulStartSubState classes by
Its derived class oil pump is manually booting state FeedPumpStartingManulStartSubState classes, heater is completed certainly
Dynamic starting state HeaterStartedManulStartSubState classes, centrifugal oil separator are just in starting state
SeperatorStartingManulStartSubState classes and centrifugal oil separator complete starting state
SeperatorStartedManulStartSubState classes are realized.The sub- state SeperationSubState classes of centrifugal oil separator, by
Its derived class normal operating conditions class NormalSeperationSubState classes, deslagging state
DischargeSeperationSubState classes, hull-borne DrainWaterSeperationSubState classes and displacement water
Transition DisplaceSeperationSubState classes are realized.
State transition logic relationship such as Fig. 4 such as shows that this simulator is powering on and after runs software in waiting shape in Fig. 4
State enters pre-actuated state after pressing Start buttons, can select the pattern of manually booting or automatic start-up mode at this time, really
Recognize after start-up mode, system starts manual/auto startup according to artificial selection, and normal circulation state is entered after operating.In Fig. 4
The state of centrifugal oil separator includes normal operation, deslagging state, hull-borne and displacement water state, the conversion warp of centrifugal oil separator state
Draining, deslagging and the conversion for replacing water state are realized by transition status.After pressing Stop buttons, centrifugal oil separator enters stopping deslagging
State realizes deslagging, and after stopping deslagging, centrifugal oil separator enters halted state, and final system enters wait state.Fig. 4 alignments
Whether state is on startup, to need to calibrate centrifugal oil separator via condition judgment.
The state transition condition of centrifugal oil separator is as shown in Figure 5 and Figure 6：The state conversion of centrifugal oil separator normal operation uses timing letter
Number Tick () realizes that timing judges, including stabilization time timing, deslagging timing and compensation water timing.When deslagging timing arrives,
It is transformed into deslagging state；Compensation water timing arrives, and is transformed into compensation water supply；Stabilization time timing is arrived, and judges moisture discharge capacity,
If moisture is normal, continue cycling through, if moisture is excessively high, checks that water discharging number is drained.
The function that fault setting is realized：Realize seing and displaying for the most common failure of centrifugal oil separator in fault setting interface.It is common
Failure includes control system failure, oil feed pump overloads, centrifugal oil separator vibrates excessive, sensor broken string or short circuit etc..When provided with certain
After a failure, the display interface on operation panel will appear alarm and show, centrifugal oil separator prototype software also can corresponding actions, at this moment need
Reason is searched, failure is eliminated.In teaching, teacher can allow student to go to release event by fault setting function setting failure
Barrier, to investigate the failure Ability of emergency management of student.
The realization method of fault setting function：Realize that fault setting function is actually the modification of input model parameter,
In normal operation, the parameter to break down is inputted to centrifugal oil separator prototype software, interface corresponding failure occurs and reminds.This hair
It is bright to be just provided with fault-signal in pipeline, electric loop of system etc., such as block, leak, short-circuit, open circuit, the relay of setting
Device contact is serially connected in detection, control loop, and in a relatively hidden etui with shell.The faulty mould of institute
The malfunction for setting operation and simulation is proposed by PLC module control, acquisition, and is touching screen display accordingly；In addition, being
The fault simulation setting signal for uniting all can be uploaded to host computer by ethernet communication mode and be used for third party,
And remote failure setting and exclusion are carried out, facilitate assessment management work.
The function that communication interface routine is realized：Communication interface routine in the present invention realizes HMI（Human-computer interaction interface）With
Communication between centrifugal oil separator prototype software and centrifugal oil separator job control software and PLC module.On the one hand by the input signal of HMI
It is sent into centrifugal oil separator prototype software and centrifugal oil separator job control software, handling result is sent into PLC buffering areas；On the other hand by PLC
Module acquires signal and is sent into centrifugal oil separator prototype software and centrifugal oil separator job control software, via centrifugal oil separator prototype software and centrifugal oil separator
It is passed to HMI after job control supple-settlement and realizes that result is shown.Signal procedure supports communication test, whether just can test communication
Often.
Communication implementation in the present invention：Buffering area is set in PLC module, host computer is read and write slow by Ethernet
Rush area；Peripheral hardware is inputted write-in buffering area by PLC program, and output is write in peripheral hardware.Signal procedure is completed by ethernet module
It is communicated with the data of PLC module, reads or be written each input/output point.Communication such as Fig. 7 in the present invention between each layer program
Shown, the boundary layer in figure is the interface display of centrifugal oil separator prototype software and centrifugal oil separator job control software, and operation layer is a point oil
The processing of machine prototype software and centrifugal oil separator job control software to data.On the one hand boundary layer shows operation layer incoming data
Come, the data on the other hand generating man-machine interactive operation, is sent into operation layer and is handled.Operation layer is realized by communication interface
Communication between signal procedure, signal procedure are realized by data-interface and are communicated with the data between PLC module acquisition module.
The function and realization method of system imitation screen in the present invention are as shown in Figure 8：System imitation screen uses mosaic exhibition
Show that plate makes, the fundamental diagram of centrifugal oil separator is drawn on this imitation screen.System imitation screen is for showing centrifugal oil separator Fuel System
The operation principle of system, the work gentle autocontrol system of water system, including compressed air circuit, work water loop and fuel circuit.
Valve switch is installed on system imitation screen, is turned on and off for control valve under manual mode；Installation LED light is used for
Indicate oil circuit, the working condition and workflow in water route and gas circuit；Potentiometer is installed to replace vibrating sensor, for manual
Under pattern, the measured value of real sensor is simulated；The working condition of valve member is shown in valve element position installation indicator light；In imitation screen
Upper installation pressure gauge is used for the variation of real-time display system pressure parameter, the main change for measuring absolute oil outlet pressure and discharge pressure
Change.On a steel structure platform, platform lower configures the heavy universal wheel of 4 band brakes, ensures system imitation screen
It can be convenient in corresponding Evaluation Room, flexibly mobile.
The function and realization method of electric control box in the present invention：Mounting industrial touch screen computer in electric control box,
It is mainly used to runs software and is communicated with PLC module realization.One emergency stop button is also installed on electric control box, it can be true
When emergency situations occurs in guarantor, system can be out of service；One piece of ammeter of installation is used for measuring centrifugal oil separator motor operations electricity in real time
The size of stream；One power switch of installation is for controlling power supply or power-off.
It system imitation screen in the present invention and is connected by multicore cable between electric control box；Valve member is installed on imitation screen
Switch, solenoid valve, signal are sent into the PLC module being mounted in electric cabinet by multicore cable；Electric current on electric control box
Table, emergency stop button and power knob also access PLC module；PLC module is connect with graphic control panel computer by Ethernet；
The signal of receiving is sent into centrifugal oil separator prototype software by communication interface routine；Centrifugal oil separator prototype software and centrifugal oil separator job control software
Between directly carry out related data exchange.
The structure arrangement of the present invention occupies little space as shown in figure 9, overall structure is arranged vertically on steelframe, Er Qiebian
In Mobile Teaching.
Present invention one-key start under automatic start-up mode, point oil, draining, deslagging are all automatic complete into water seal water process
At.
The present invention is developed using Visual C # object oriented languages, has the advantages of easy care, easily extension.
Realize function：
（1）The present invention can realize automatic point of oily control process and manually control a point emulation and simulation for oily process, including fuel oil
The centrifugal oil separators such as circuit, work water loop, pneumatic circuit, centrifugal oil separator, electric motor starting case, PLC program controller and system touch screen
The emulation and simulation of system components function.Centrifugal oil separator automatic control function realizes automatic start-up course and the startup of centrifugal oil separator
Normal operation is automatically controlled after the completion, reduces artificial maloperation.After automatically controlling failure, can by manually/
Automatic selector switch enters manual operation mode, under manual mode, system by simulating the potentiometer feedback signal of each sensor,
Realization manually controls the centrifugal oil separator course of work.
（2）The present invention installs a graphic control panel computer, it can be achieved that simulating centrifugal oil separator system on electric control box
Divide oil stream journey and system operatio.Moreover, this simulator is also equipped with a block system imitation screen, it is equipped on system imitation screen
Ammeter, pressure gauge and LED light are capable of the change of the dynamic work flow and electric current and pressure of simultaneous display centrifugal oil separator system
Change, each step in the aspect observation course of work can help to debug when failure information, be convenient for practical operation
Teaching.
（3）The present invention realizes fault setting and fault simulating function, and simulation ship oil separator is frequent in use
The failure of appearance, including the reason of break down and phenomenon of the failure, the factor that these failures occur will be caused to be converted to failure ginseng
Number, is put into individual fault setting interface.In the operation teaching of centrifugal oil separator, these failures can occur by setting, allow
Life goes to debug, and reaches real simulation and excludes the failure occurred during centrifugal oil separator real-world operation.
Technical essential：
The present invention is using Visual C# languages exploitation centrifugal oil separator working model software, centrifugal oil separator job control software and communication journey
Sequence.
Centrifugal oil separator job control software in the present invention realizes the shape of centrifugal oil separator using two layers of nested finite state machine technology
State controls, and the operation of operation button is realized using multi-branch tree data structure.
The present invention sets buffering area in PLC module, and host computer reads and writes buffering area by Ethernet；PLC program will be outer
If input write-in buffering area, output is write in peripheral hardware.It is combined using Ethernet and PLC module, writes plc communication program, it is real
Now communicate.
Claims (2)
1. a kind of ship oil separator automatic control system simulator, it is characterised in that the combination of software and hardware；Software includes
Centrifugal oil separator prototype software, centrifugal oil separator job control software and communication interface routine；Hardware includes electric control box and system simulation
Screen；Result of calculation is output to by the solution of the foundation and model of centrifugal oil separator prototype software implementation model by communication interface routine
Centrifugal oil separator job control software;
The communication interface routine mutually communicates between centrifugal oil separator prototype software, centrifugal oil separator job control software and PLC module
Letter provides communication interface；Communication interface routine is completed to communicate with the data of PLC module by ethernet module, reads or write-in is each
Input/output point；Buffering area is set in PLC module, host computer reads and writes buffering area by Ethernet；PLC program is by peripheral hardware
Input write-in buffering area, output is write in peripheral hardware；It is combined using Ethernet and PLC module, writes plc communication program, realized
Rapidly and efficiently communicate；
The electric control box is by 10.1 inch industrial touch screen computer, PLC module, ethernet communication module, an electric current
Table, power switch and emergency button composition；The graphic control panel computer provides pure soft running environment, is used for centrifugal oil separator mould
The operation of type software, centrifugal oil separator job control software and communication interface routine；The PLC module and ethernet communication module phase
It is implemented in combination with acquisition and the data interactive function of data；The system imitation screen uses mosaic display board, by ship point oil
Machine fundamental diagram is plotted on imitation screen, and additionally mounted LED light, carcass switch, solenoid valve and potentiometer are realized same with software
Step dynamically shows centrifugal oil separator System Working Principle；When the LED light on circuit is bright, indicate that this circuit is working；Work as LED light
It goes out, indicates that this circuit has been stopped；Carcass switch and solenoid valve can simulate the start and stop of disengaging fluid；Potentiometer analog sensed
The measuring signal of device；
The centrifugal oil separator prototype software foundation includes centrifugal oil separator model, motor model, oil temperature model, pipeline model, moisture mould
A series of mathematical models including type and deslagging model, Controlling model primary condition and boundary condition use 4 according to input parameter
Rank runge kutta method solves mathematical model, and result of calculation is finally output to centrifugal oil separator job control software.
2. ship oil separator automatic control system simulator as described in claim 1, it is characterised in that the centrifugal oil separator
Job control software realizes the job control process of centrifugal oil separator system using two-level nested finite state machine technology；First order state
Controlled by Abstract State base class, realized by each derived class, including wait state class, pre-actuated state class, manually boot state class,
Automatic starting state class, recurrent state class, transition status class and centrifugal oil separator state class；Second level state by first order state pumping
As sub- state as base class control, implemented by its derived class, including oil pump automatic starting state class, heater complete
Automatic starting state class, centrifugal oil separator are just manually booting state in starting state class, centrifugal oil separator completion starting state class, oil pump
Class, heater complete automatic starting state class, centrifugal oil separator just starting state class, centrifugal oil separator complete starting state class realize, point
Oil machine normal operating conditions class class, deslagging state class, hull-borne class and displacement water state class；
When centrifugal oil separator system is in different working conditions, different logic control modes is taken；Centrifugal oil separator work system starts
The original state of operation is to wait for, the foundation result of calculation of prototype software and the feedback signal of PLC module between different states,
It is converted accordingly by the judging result of state transition condition.
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| CN112908087A (en) * | 2021-03-01 | 2021-06-04 | 刘春海 | Marine oil separator real object simulation system |
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