CN109917737A - A kind of fuel oil heat-conducting oil furnace electrical management system - Google Patents
A kind of fuel oil heat-conducting oil furnace electrical management system Download PDFInfo
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- CN109917737A CN109917737A CN201910051332.5A CN201910051332A CN109917737A CN 109917737 A CN109917737 A CN 109917737A CN 201910051332 A CN201910051332 A CN 201910051332A CN 109917737 A CN109917737 A CN 109917737A
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Abstract
The invention discloses a kind of fuel oil heat-conducting oil furnace electrical management systems, including heat-conducting oil furnace electrical cabinet, Cloud Server, remote supervisory and control(ling) equipment, on-off model equipment, analog signals acquire equipment, execute equipment, it include PLC in the heat-conducting oil furnace electrical cabinet, Intelligent Industry Controller, power distribution circuit, touch screen is set in the electrical cabinet door of heat-conducting oil furnace, the PLC, touch screen, Intelligent Industry Controller supply voltage is all DC24V, the power distribution circuit is that each electrical part distributes power supply in heat-conducting oil furnace electrical cabinet, the present invention is with PLC instead of the temperature on conventional fuel oil heat-conducting oil furnace electric cabinet operation panel, pressure, Liquid level display, high limit temperature controller, increase temperature, pressure, fluid level transmitter, voltage, current transducer, instead of burner circuit board, cyclelog, Overcome conventional electrical system reliability it is poor, it is dangerous, cannot remotely monitor, maintenance upgrade the drawbacks of, greatly enhance heat-conducting oil furnace electric control system function for electrical management system platform.
Description
Technical field
The present invention relates to heat-conducting oil furnace monitoring technology field, specially a kind of fuel oil heat-conducting oil furnace electrical management system.
Background technique
Heat-conducting oil furnace is heating equipment in asphalt pavement construction, in asphalt mixing plant, asphalt modification device, pitch cream
It is very crucial in change equipment, but common people do not know about, thus can usually ignore it, it breaks down at it, severely impacts production
When be just concerned.In actual motion, the heat-conducting oil furnace of the equipment such as asphalt mixing plant is flowed with unit in charge of construction and is often moved,
Electrical cabinet is arranged in again below the supporting leg of conduction oil expansion drum, and cabinet body itself is frivolous, and internal electric appliance is not connected firmly, and causes
It electrically seriously loosens, fall off in cabinet, being steeped by oil immersion, wire insulation skin softening, swelling, in addition control line sheet in conventional electrical cabinet
Body is relatively more and more in disorder, and often in fluctuation of service, there are use when hidden danger.
Heat-conducting oil furnace electrical cabinet mostly uses traditional relay control loop, and logic control route is complicated, maintenance difficult,
Relay life is shorter, and reliability is not high.Even with also more primary, the current heat-conducting oil furnace of PLC control heat-conducting oil furnace
Electric control system is completely dependent on temperature control display (TC), pressure control display (PC), Liquid level display
(LC), high limit temperature controller constitutes main control loop, and under normal circumstances, thermally conductive oil temperature is dropped to or is raised to for pressure, liquid level
How much, i.e., when burner lights a fire, stops working, when being determined, and lighted a fire by temperature control display (TC) and high limit temperature controller
Sequence is then lighted a fire by the cyclelog control for having cured the not Reprogrammable of program in burner.Heat-conducting oil furnace is in bituminous pavement
Construction seasons need continuous work, generally arrange 2 people on duty during operation, also do not include maintenance personal, and the critical construction period sets
Standby administrative staff need often to make an inspection tour, once production will be seriously affected if breaking down and could not organize to exclude repairing in time.No
Say long-range monitoring heat-conducting oil furnace, previous people want asphalt mixing plant operating room monitor heat-conducting oil furnace all cannot achieve (because
It is continuously run for heat-conducting oil furnace, and asphalt mixing plant then mostly produces on daytime), it is gone through as the temperature for thinking inquiry heat-conducting oil furnace
History data, or think the ideas such as upgrading control system, even more it cannot achieve.
Summary of the invention
The purpose of the present invention is to provide a kind of fuel oil heat-conducting oil furnace electrical management systems, and it is electrical to solve heat-conducting oil furnace
The above problem existing for control system.
To achieve the above object, the invention provides the following technical scheme:
A kind of fuel oil heat-conducting oil furnace electrical management system, including heat-conducting oil furnace electrical cabinet, Cloud Server, long-range monitoring are set
Standby, on-off model equipment, executes equipment at analog signals acquisition equipment, includes PLC, intelligence in the heat-conducting oil furnace electrical cabinet
Can industrial control unit (ICU), power distribution circuit, set touch screen, the PLC, touch screen, intelligence in the electrical cabinet door of heat-conducting oil furnace
Industrial control unit (ICU) supply voltage is all DC24V, and the power distribution circuit is each electrical part distribution electricity in heat-conducting oil furnace electrical cabinet
Source,
The PLC includes CPU module, Analog input mModule, and the CPU module integrates 18 digital input points, collection
At 12 digital quantity output points, the on-off model equipment is connect with 18 digital input point electric wires, the execution equipment
It is connect with 12 digital outputs by intermediate relay electric wire, the Analog input mModule is received thermally conductive by transmitter
The main analog amount signal of oil oven analog signals acquisition equipment；
The COM port of the Intelligent Industry Controller and a 485 interface connections of PLC provide to assist with PLC producer
View connection, the Intelligent Industry Controller are equipped with two SIM card, 3G/4G and WIFI antennas, and the Intelligent Industry Controller is logical
It crosses 3G/4G network or WIFI network to be wirelessly connected in a manner of data penetration transmission with distal end Cloud Server, the Cloud Server passes through
3G/4G network or WIFI network connect remote supervisory and control(ling) equipment；
One 485 interface of the CPU module of the touch screen and PLC are connected with connection, Intelligent Industry Controller
Another 485 interface of the port COM1 and PLC are connected with connection, the LAN network interface of touch screen and Intelligent Industry Controller
NET network interface is connected with cable by ethernet communication agreement, and the PLC, Intelligent Industry Controller, touch screen interconnect two-by-two,
The Analog input mModule receives the main analog amount signal that heat-conducting oil furnace analog signals acquire equipment by transmitter.
Preferably, the remote supervisory and control(ling) equipment is smart phone, computer.
Preferably, 18 digital input points use PNP common-anode, and power supply DC24V is opened described in input
Pass amount signalling arrangement include reset button, Guan Yuancheng, photocell eye, oiling pump startup, circulating pump electrothermal relay, burner heat after
The normally closed auxiliary touching of electric appliance, filling pump electrothermal relay, circulating pump straight contact device normally closed auxiliary contact, circulating pump triangle contactor
Point, circulating pump star contact normally closed auxiliary contact, filling pump contactor normally closed auxiliary contact, circulating pump straight contact device are normal
Open auxiliary contact, the normally opened auxiliary contact of circulating pump triangle contactor, each on-off model equipment and each switching value of PLC
The connection of signal input terminal electric wire.
Preferably, 12 digital quantity output points are connect with execution equipment by intermediate relay KA1-KA9, intermediate
Relay obtain it is electric after its normally opened contact 11-14 connect and execute equipment coil, the executions equipment includes connecing including circulating pump straight line
Tentaculum coil, circulating pump star contact coil, circulating pump triangle contactor coil, burner blower contactor coil, oiling
Pump contactor coil, ignition transformer, safety valve, small fire solenoid valve, high fire solenoid valve.
Preferably, the control coil power supply for executing equipment is separately supplied, i.e., receives 12 points by intermediate relay
The execution equipment control coil of word amount output point control has two parts, and a part is contactor control coil in electrical cabinet, and one
Dividing is electrical cabinet outer burner equipment driving coil, this two parts coil working voltage is all AC220V, and electrical cabinet is inscribed
Tentaculum control coil includes circulating pump straight contact device coil, circulating pump star contact coil, circulating pump triangle contactor line
Circle, burner blower contactor coil, filling pump contactor coil；Electrical cabinet outer burner equipment driving coil includes
Ignition transformer, safety valve, small fire solenoid valve, high fire solenoid valve.
Preferably, the analog signals acquisition equipment includes oil outlet temperature thermal resistance, returning-oil temperature thermal resistance, pressure
Sensor, liquid level sensor, voltage sensor, current sensor, returning-oil temperature thermal resistance, pressure sensor are mounted in conduction oil
On the oil return total pipeline of furnace, oil outlet temperature thermal resistance is on heat-conducting oil furnace oil outlet total pipeline, and liquid level sensor is mounted in thermally conductive
On oil expansion tank deck, voltage sense input is attempted by general supply breaker of plastic casing leading-out terminal L1, L3 phase line, circulating pump
Current sensor, which is worn, to be connect below the circulating pump electrothermal relay on motor power-supply wire, and combustion air fan current sensor, which is worn to connect, to burn
Below blower electrothermal relay on motor power-supply wire, the signal that the oil outlet temperature thermal resistance, returning-oil temperature thermal resistance transmit is distinguished
It is connected to oil outlet temperature transmitter, on returning-oil temperature transmitter, after becoming standard electric signal by transmitter, is connected to the analog quantity of PLC
Input module；The pressure sensor, liquid level sensor, voltage sensor, current sensor carry transmitter, mark back
Quasi- electric signal is also coupled to PLC Analog input mModule.
Preferably, the power distribution circuit includes three-phase AC380V general supply, main power source breaker of plastic casing, power supply electricity
Pressure transmitter, safety contactor, isolating transformer be spaced apart, isolating transformer, and the three-phase AC380V general supply inlet wire is from thermally conductive
The terminal at oil oven electrical cabinet mounting plate lower-left end accesses, and through main power source breaker of plastic casing, divides two-way, removes motor main circuit all the way,
Control electric power loop is removed all the way, between L1, L3 phase line of main power source breaker of plastic casing leading-out terminal and connects supply voltage transmitter,
Analog input mModule relies on the 4-20mA signal monitoring L1-L3 phase voltage of supply voltage transmitter output, in main power source plastic housing
Between L2, L3 phase line of breaker outgoing line end and connect isolating transformer be spaced apart, the 380V coil of safety contactor, come from L2, L3
380V electricity enters back into isolating transformer through safety contactor two-phase main contacts 1-2 and 3-4.
Preferably, the control electric power loop includes AC220V power supply and DC24V power supply, the AC220V power supply be through
The 380V voltage of safety contactor two-phase main contacts access is exported through isolating transformer again, and the AC220V power supply passes through 220V
Power supply is spaced apart, divides two-way after 220V scram button, gives AC220V terminal block, headlamp and socket, another way access switch all the way
Power supply is spaced apart, exports DC24V through Switching Power Supply Transformer Rectifier, distributes to DC24V terminal block, touch screen, PLC, intelligent industrial control
DC24V power supply needed for device processed takes out from DC24V terminal block.
Compared with prior art, beneficial effects of the present invention are as follows:
The present invention realizes live (operating room including asphalt mixing plant) long-range 3 kinds of monitoring devices, 6 kinds of monitoring sides
Formula, in particular to: (1) touch screen grasp interface；(2) mobile phone short message system (including voice)；(3) interface mobile phone configuration APP；(4)
The interface mobile phone web pages APP；(5) computer heat-conducting oil furnace web monitor interface；(6) computer heat-conducting oil furnace configuration monitoring interface.Monitoring
There are 6 kinds of modes, mode 1 belongs to on-site supervision, and mode 2-6 belongs to long-range monitoring, and the long-range monitor mode of 1-4 is just in actual work
Victory uses.
It is technologically advanced, performance is steady the present invention provides fuel oil heat-conducting oil furnace electrical control management system technical solution
Fixed, energy simulative debugging, energy enquiry of historical data, has equipment Management Function, uses touch screen at the scene lockable failure cause
Configuration picture monitoring, remotely with the monitoring such as mobile phone, computer configuration picture or webpage, can be according to requiring to carry out remote upgrade dimension
Protecting system (including upgrading PLC program, touch screen program, cell phone application program and short message of mobile telephone for alarm content, computer configuration circle
Face program etc.).
The present invention is with PLC instead of temperature, the pressure, Liquid level on conventional fuel oil heat-conducting oil furnace electric cabinet operation panel
Display, high limit temperature controller, increase temperature, pressure, liquid level, voltage, current transducer, included instead of burner
Circuit board and cyclelog, overcome that traditional electrical system volume is big, power consumption is more, poor reliability, service life are short, dangerous
The drawbacks of, the PLC program newly write not only realizes the included program controller repertoire of relay control circuit, burner, also
Increase simulative debugging, quick lock in fault rootstock, the inquiry of historical data, associated components and material consumption administrative analysis function newly,
So that heat-conducting oil furnace electric control system function greatly enhances as electrical management system platform.
The present invention uses touch screen operation and control interface, instead of a variety of instructions on conventional fuel oil heat-conducting oil furnace electric cabinet operation panel
Lamp, button visualize process flow and warning message, content richer (such as in real time, historical data and curve and sequence
Function map flow chart etc.), scene manipulation is intuitive using being more convenient, and is also beneficial to the understanding to system maintenance.
The present invention supports remote download program, PLC program, live touch screen interface including live electric control system
Program, intelligent terminal item program, short message of mobile telephone for alarm content and mobile phone, the program at computer monitor interface etc., all can basis
Designer or the new idea of user, requirement carry out remote upgrade, to expand new control and management function in due course.
The present invention is in addition to the temperature of acquisition heat-conducting oil furnace, pressure, liquid level signal, and also acquisition supply voltage, circulating pump are electric
Stream, combustion air fan current signal, these analog signals participate in equipment and not only control, can also touch screen, mobile phone, remote at the scene
Journey computer real-time display, and the historical record of these analog signals can be inquired, passing use state is traced, convenient for management.
Detailed description of the invention
Fig. 1 is inventive touch screen, PLC, Intelligent Industry Controller wiring diagram；
Fig. 2 is that the present invention integrates 18 digital input point wiring diagrams；
Fig. 3 and Fig. 4 is that the present invention integrates 12 digital quantity output point wiring diagrams；
Fig. 5 and Fig. 6 is Analog input mModule wiring diagram of the present invention；
Fig. 7 is the wiring diagram in power distribution circuit of the present invention.
In figure: 1, PLC；2, Intelligent Industry Controller；3, touch screen；4, Analog input mModule；5, CPU module；6, collect
At 18 digital input points；7,12 digital quantity output points are integrated；8, oil outlet temperature thermal resistance；9, returning-oil temperature thermal resistance；
10, pressure sensor；11, liquid level sensor；12, supply voltage sensor；13, combustion air fan current sensor；14, it recycles
Pump current sensor；15, three-phase AC380V general supply；16, main power source breaker of plastic casing；17, supply voltage transmitter；18,
Safety contactor；19, isolating transformer is spaced apart；20, isolating transformer；21, AC220V terminal block；22,220V power supply is spaced apart；
23,220V scram button；24, Switching Power Supply is spaced apart；25, DC24V terminal block.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
To achieve the above object, the invention provides the following technical scheme:
- Fig. 7 refering to fig. 1, a kind of fuel oil heat-conducting oil furnace electrical management system, including heat-conducting oil furnace electrical cabinet, cloud service
Device, on-off model equipment, analog signals acquisition equipment, executes equipment at remote supervisory and control(ling) equipment, and the heat-conducting oil furnace is electrical
Include PLC1, Intelligent Industry Controller 2, power distribution circuit in cabinet, sets touch screen 3, institute in the electrical cabinet door of heat-conducting oil furnace
Stating PLC1, touch screen 3,2 supply voltage of Intelligent Industry Controller is all DC24V, and the power distribution circuit is heat-conducting oil furnace electricity
Each electrical part distributes power supply in gas holder,
If Fig. 1, the PLC1 include CPU module 5, Analog input mModule 4, the integrated 18 points of numbers of the CPU module 5
It measures input point 6, integrate 12 digital quantity output points 7,5 part of CPU module of PLC1 is the core of whole system, heat-conducting oil furnace
Overall operation and burner ignition control program, simulative debugging program, fault diagnostic program, component operation and oil consumption manage journey
Sequence can be used to receive to lead by the CPU module 5 of Local or Remote software download to PLC1, the Analog input mModule 4 of PLC1
The main analog amount signal of hot oil, comprising: returning-oil temperature, oil outlet temperature, system pressure, expansion drum (head tank) liquid level letter
Number.
The COM port of the Intelligent Industry Controller 2 and a 485 interface connections of PLC1 are with PLC1 producer rule
Determine agreement connection, the Intelligent Industry Controller 2 be equipped with mobile phone card and antenna, the Intelligent Industry Controller 2 equipped with SIM card,
Two antennas of 3G/4G and WIFI, the Intelligent Industry Controller 2 pass through 3G/4G network or WIFI network and distal end Cloud Server
It being wirelessly connected in a manner of data penetration transmission, the Cloud Server connects remote supervisory and control(ling) equipment by 3G/4G network or WIFI network,
Intelligent Industry Controller 2 is responsible for collected variable in live PLC1, including operation result variable, by 3G/4G network or
WIFI network is sent to Cloud Server in a manner of data penetration transmission, then passes to remote supervisory and control(ling) equipment, and the remote supervisory and control(ling) equipment is intelligence
The mechanical, electrical brain of expert, mobile phone, computer can pass through short message, the interface mobile phone configuration APP, the interface webpage APP, computer web monitor circle
Face monitoring site heat-conducting oil furnace operating status.Intelligent remote controlling terminal user program file, can pass through Local or Remote software
Download to intelligent remote controlling terminal.
Communication module of the Intelligent Industry Controller 2 as PLC1 remote maintenance and monitoring, Intelligent Industry Controller 2
It is responsible for collected variable in live PLC1 being sent to Cloud Server in a manner of data penetration transmission by 3G/4G network, then pass to
Distal end smart phone, computer, mobile phone, computer pass through webpage or configuration interface monitoring site.
The touch screen 3 is connect with 485 interfaces of the CPU module 5 of PLC1 with connection, Intelligent Industry Controller 2
The port COM1 and another 485 interface of PLC1 connected with connection, the LAN network interface and Intelligent Industry Controller of touch screen 3
2 NET network interface is connected with cable by ethernet communication agreement, and PLC1, Intelligent Industry Controller 2, touch screen 3 are mutually connected two-by-two
It connects.Touch screen 3 is only monitored to Field Force and is used.The monitoring interface program of touch screen 3, can be by under Local or Remote software
It is downloaded in touch screen 3.
Such as Fig. 2, the on-off model equipment is connect with integrated 18 6 electric wires of digital input point, the switching value letter
Number equipment includes reset button, photocell eye, filling pump rotary switch, circulating pump electrothermal relay, burner electrothermal relay, oiling
Pump electrothermal relay, circulating pump straight contact device normally closed auxiliary contact, circulating pump triangle contactor auxiliary contact, circulating pump star
Contactor auxiliary contact, filling pump contactor normally closed auxiliary contact, the normally opened auxiliary contact of circulating pump straight contact device, circulating pump
The normally opened auxiliary contact of triangle contactor.It is corresponding after the premise that these on-off model equipment are acted to PLC1 reflection, or movement
As a result, corresponding open and-shut mode can be inputted in different moments, PLC1 program judges accordingly, keeps or perform the next step and is dynamic
Make.
For example, heat-conducting oil furnace will work, circulating pump will first start, before starting, it is ensured that circulating pump electrothermal relay
The normally closed point of FR1 is closure.In start-up course, the 13-14 of the normally opened auxiliary contact of circulating pump straight line is connected, circulating pump straight line is normal
The 21-22 of the 21-22 disconnection, circulating pump star normally closed auxiliary contact of closing auxiliary contact is disconnected, to after switching time, circulating pump
The 21-22 of star normally closed auxiliary contact is first closed, and then the 13-14 closure of the normally opened auxiliary contact of circulating pump triangle, the two
Simultaneously, while accident can cannot occur for disconnection and closure, slightly time difference, but cannot be big, it is necessary to according to practical appropriate true
It is fixed.For another example, reset is normally closed point, it is only locked in burner, after Failure elimination, presses during disconnection restores again and just opens
It employs, does not work when other.It is switched on when photocell eye (i.e. photo resistance) has flame in burner, it is connected simultaneously
After holding, safety valve, small fire valve etc. could continue to remain up, and otherwise, burner blower, safety valve, small fire valve are shut off.
" Guan Yuancheng " knob being arranged in the on-off model equipment, refers to when Field Force needs hesitation to protect
Heat-conducting oil furnace is supported, forbids the remote personnel starter motor period of the day from 11 p.m. to 1 a.m, " Guan Yuancheng " knob is gone to maintenance shelves, has prevented personnel from passing through hand
Mechanical, electrical brain, short message remotely start heat-conducting oil furnace.After " Guan Yuancheng " knob is got to maintenance shelves, although cannot remotely operate thermally conductive
Oil oven, but still can monitored state, query history record.
Further, as Fig. 3 and Fig. 4,12 digital quantity output points 7 and execution equipment pass through intermediate relay
Device KA1-KA9 connection, i.e. PLC1 be isolateds with equipment voltage is executed, do so can avoid external execution equipment accident electric short circuit or
Overvoltage causes PLC1 ontology to damage.Because of PLC1 ontology damage caused by executing equipment accident electric short circuit, overvoltage, in practical work
It is much in work；Due to PLC1 and equipment electric isolution is executed, PLC1 has selected contactless transistor digital quantity output end,
Output terminal voltage only 24V, use is safe, and the output end service life is long, and it is worried to remove maintenance replacement PLC1 bring from.
It does so benefit: being isolated from the outside PLC1, rule of thumb, execution equipment electric wire is inevitably short-circuit in use, also can
It meets lightning stroke by chance, after centre has added intermediate relay KA1-KA9, not only improves the PLC1 output end service life, also can avoid because of short circuit etc.
It causes to burn out PLC1.
Intermediate relay KA1-KA9 obtain it is electric after its normally opened contact 11-14 connect contactor KM1-KM5 or ignition transformer,
Burner safety valve, small fire valve, high fire valve 220V coil, the execution equipment include: circulating pump straight contact device coil,
Circulating pump star contact coil, circulating pump triangle contactor coil, burner blower contactor coil, filling pump contactor
Coil, ignition transformer, safety valve, small fire solenoid valve, high fire solenoid valve.
The control coil power supply for executing equipment is separately supplied, i.e., it is defeated to receive 12 digital quantities by intermediate relay
The execution equipment control coil for putting control out has two parts, and a part is contactor control coil in electrical cabinet, and a part is electricity
Gas holder outer burner equipment driving coil, this two parts coil working voltage is all AC220V, this two parts AC220V
Control power supply is separately supplied, and is maintained easily, also safer.Contactor control coil includes: circulating pump straight contact in electrical cabinet
Device coil, circulating pump star contact coil, circulating pump triangle contactor coil, burner blower contactor coil, filling pump
Contactor coil KM5.Electrical cabinet outer burner equipment driving coil includes: ignition transformer, safety valve, small fire electromagnetism
Valve, high fire solenoid valve.
Such as Fig. 5 and Fig. 6, the analog signals acquisition equipment includes oil outlet temperature thermal resistance 8, returning-oil temperature thermal resistance
9, pressure sensor 10, liquid level sensor 11, supply voltage sensor 12, combustion air fan current sensor 13, circulating pump electric current
Sensor 14, returning-oil temperature thermal resistance 9, pressure sensor 10 are on the oil return total pipeline of heat-conducting oil furnace, oil outlet temperature thermoelectricity
Resistance 8 is on heat-conducting oil furnace oil outlet total pipeline, and liquid level sensor 11 is on conduction oil expansion tank deck, supply voltage sensing
12 input terminal of device is attempted by breaking 16 device leading-out terminal L1, L3 phase lines of main power source plastic housing, and circulating pump current sensor 14, which is worn, to be connect
Below circulating pump electrothermal relay on motor power-supply wire, combustion air fan current sensor 13, which is worn, to be connect under combustion air fan electrothermal relay
On square motor power-supply wire, the signal that the oil outlet temperature thermal resistance 8, returning-oil temperature thermal resistance 9 transmit is coupled with oil outlet temperature
On transmitter, returning-oil temperature transmitter, after becoming standard electric signal by transmitter, it is connected to the Analog input mModule 4 of PLC1；
The pressure sensor 10, liquid level sensor 11, supply voltage sensor 12, current sensor carry transmitter, mark back
Quasi- electric signal is also coupled to PLC1 Analog input mModule 4.Temperature sensor, pressure sensor 18, liquid level sensor 11 are thermally conductive
The most important analog acquisition equipment of oil oven, them is connect on the Analog input mModule 4 of PLC1, voltage, current sense
The analog signals that device comes can separately connect at the analog input end of Intelligent Industry Controller 2, in this way distribution escapable cost.
Returning-oil temperature thermal resistance 9 is on the oil return main pipe rail of heat-conducting oil furnace, to take into account accurate and meeting the requirements, in conjunction with
The daily temperature range of heat-conducting oil furnace oil return main pipe rail selects thermal resistance PT100 best, and is mounted on the fuel-displaced general pipeline of heat-conducting oil furnace
On oil outlet temperature thermal resistance can be thermal resistance, also (if selecting thermocouple, transmitter if, will match thermoelectricity mutation for optional thermocouple
Send device).
4-20mA signal is exported from temperature, pressure, liquid level, voltage, current transducer or sensor, gives PLC1 analog quantity
Input module 4.Whole analog signals are directly entered PLC1 Analog input mModule 4, go control to burn by PLC1 internal processes
The operation such as device does not use Password Management difficulty, the biggish temperature display controller of volume, pressure display controller, liquid level are shown
Show controller and high limit temperature controller.
Such as Fig. 7, the power distribution circuit includes three-phase AC380V general supply 15, main power source breaker of plastic casing 16, power supply
Voltage transmitter 17, safety contactor 18, isolating transformer are spaced apart 19, and 15 inlet wire of three-phase AC380V general supply is from thermally conductive
The terminal at oil oven electrical cabinet mounting plate lower-left end accesses, and through main power source breaker of plastic casing 16, divides two-way, and motor master is gone to return all the way
Control electric power loop is removed on road all the way, between L1, L3 phase line of 16 leading-out terminal of main power source breaker of plastic casing and connects supply voltage change
Device 17 is sent, Analog input mModule 4 relies on the 4-20mA signal monitoring L1-L3 phase voltage of the output of supply voltage transmitter 17,
Between 16 leading-out terminal L2, L3 phase line of main power source breaker of plastic casing and meet the 380V that isolating transformer is spaced apart 19, safety contactor 18
Coil, the 380V electricity to come from L2, L3 enter back into isolating transformer 20 through safety contactor 18 two-phase main contacts 1-2 and 3-4.
The 380V loop A 1-A2 of safety contactor 18 is connected, and two-phase the main contacts 1-2 and 3-4 of safety contactor 18 are just closed, and is connected
Thereafter isolating transformer 20 controls power supply with regard to exportable 220V, and DC24V is just exportable, conversely, any phase line of L2, L3 is under-voltage,
The main contacts 1-2 and 3-4 of safety contactor 18 just will not be closed, and play protection systemic effect.Power-off event occurs for power distribution
Barrier, remote handset can receive power failure audio alert and short breath prompt information.
The control electric power loop is divided into L1, L2, L3 three-phase and PE protection ground wire, has connected supply voltage change in L1, L3
Device 17 is sent, to provide the monitoring signal of supply voltage to module；It is spaced apart 19, safety in the indirect isolating transformer of L2, L3 phase
Contactor 18, the 380V electricity to come from L2, L3 enter back into isolating transformer through safety contactor 18 liang of main contacts 1-2 and 3-4
20.Setting safety contactor 18 and the effect of isolating transformer 20 and benefit are: once there is phase shortage in some in L2 or L3, peace
The coil of Full connected device 18 power loss immediately, two main contacts 1-2 and 3-4 disconnect immediately, into the 380V of isolating transformer 20
And be supplied to the 220V and 24V of control loop and also disappear therewith, to protect entire control system (including weak current part) any
Electrical part is without damage, and there are also eliminate the effect of power supply clutter for isolating transformer 20.This can make heat-conducting oil furnace electric control system suitable
Answer more running environment, including highway field construction environment.
Such as Fig. 5, the control electric power loop includes AC220V power supply and DC24V power supply, and the AC220V power supply is through pacifying
The 380V voltage of 18 two-phase main contacts of Full connected device access is exported through isolating transformer 20, and the AC220V power supply passes through 220V
Power supply divides two-way after being spaced apart 22,220V scram button 23, all the way give AC220V terminal block 21, headlamp and socket, another way into
Enter Switching Power Supply to be spaced apart 24, export DC24V through Switching Power Supply Transformer Rectifier, distributes to DC24V terminal block 25, touch screen 3,
DC24V power supply needed for PLC1, Intelligent Industry Controller 2 takes out from DC24V terminal block 25.Any 24V electrical equipment hair
Raw power failure, all can be from being looked into X4 terminal block respective terminal.
The present invention realize scene and long-range 3 kinds of monitoring devices, 6 kinds of monitor modes, in particular to: (1) touch screen 3 grasps boundary
Face；(2) mobile phone short message system (including voice)；(3) interface mobile phone configuration APP；(4) interface mobile phone web pages APP；(5) computer is led
Hot oil furnace web monitor interface；(6) computer heat-conducting oil furnace configuration monitoring interface.Monitoring has 6 kinds of modes, and mode 1 belongs to live prison
Control, mode 2-6 belong to long-range monitoring, the convenient use of the long-range monitor mode of 1-4 in actual work.
It is technologically advanced, performance is steady the present invention provides fuel oil heat-conducting oil furnace electrical control management system technical solution
Fixed, energy simulative debugging, energy enquiry of historical data, has equipment Management Function, uses touch screen 3 at the scene lockable failure cause
Configuration picture monitoring, remotely with the monitoring such as mobile phone, computer configuration picture or webpage, can be according to requiring to carry out remote upgrade dimension
Protecting system (including upgrading PLC1 program, 3 program of touch screen, cell phone application program and short message of mobile telephone for alarm content, computer configuration
Interface program etc.).
The present invention is with PLC1 instead of temperature, the pressure, Liquid level on conventional fuel oil heat-conducting oil furnace electric cabinet operation panel
Display instrument, high limit temperature controller, increase temperature, pressure, liquid level, voltage, current transducer, certainly instead of burner
The circuit board and cyclelog of band have overcome that electrical system volume is big, power consumption is more traditional, poor reliability, service life are short, no
The drawback of safety, the PLC program newly write not only realizes relay control circuit, burner carries program controller whole function
Can, also increase simulative debugging, quick lock in fault rootstock, the inquiry of historical data, associated components and material consumption administrative analysis newly
Function, so that heat-conducting oil furnace electric control system function greatly enhances as electrical management system platform.
The present invention uses 3 operation and control interface of touch screen, instead of a variety of instructions on conventional fuel oil heat-conducting oil furnace electric cabinet operation panel
Lamp, button visualize process flow and warning message, content richer (such as in real time, historical data and curve and sequence
Function map flow chart etc.), scene manipulation is intuitive using being more convenient, and is also beneficial to the understanding to system maintenance.
The present invention supports remote download program, PLC program including live electric control system, live main interface program,
Intelligent terminal project procedure, short message of mobile telephone for alarm content and mobile phone, the program at computer monitor interface etc., all can be according to design
Person or the new idea of user, requirement carry out remote upgrade, to expand new control and management function in due course.
Finally, it should be noted that be not intended to restrict the invention the foregoing is merely preferred embodiment of the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of fuel oil heat-conducting oil furnace electrical management system, it is characterised in that: including heat-conducting oil furnace electrical cabinet, Cloud Server, remote
Range monitoring equipment, analog signals acquisition equipment, executes equipment, packet in the heat-conducting oil furnace electrical cabinet at on-off model equipment
PLC, Intelligent Industry Controller, power distribution circuit are included, sets touch screen, the PLC, touch in the electrical cabinet door of heat-conducting oil furnace
Screen, Intelligent Industry Controller supply voltage are all DC24V, and the power distribution circuit is each electrical part in heat-conducting oil furnace electrical cabinet
Distribute power supply；
The PLC includes CPU module, Analog input mModule, and the CPU module integrates 18 digital input points, integrated 12
Point digital quantity output point, the on-off model equipment are connect with 18 digital input point electric wires, the execution equipment and 12
Point digital quantity output point is connected by intermediate relay electric wire, and the Analog input mModule 4 receives conduction oil by transmitter
The main analog amount signal of furnace analog signals acquisition equipment；
The COM port of the Intelligent Industry Controller and a 485 interface connections of PLC are connected with PLC producer regulation agreement
It connects, the Intelligent Industry Controller is equipped with two SIM card, 3G/4G and WIFI antennas, and the Intelligent Industry Controller passes through 3G/
4G network or WIFI network are wirelessly connected in a manner of data penetration transmission with distal end Cloud Server, and the Cloud Server passes through 3G/4G net
Network or WIFI network connect remote supervisory and control(ling) equipment；
One 485 interface of the CPU module of the touch screen and PLC are connected with connection, the end COM1 of Intelligent Industry Controller
It mouthful is connect with another 485 interface of PLC CPU module with connection, the LAN network interface of touch screen and Intelligent Industry Controller
NET network interface is connected with cable by ethernet communication agreement, and the PLC, Intelligent Industry Controller, touch screen interconnect two-by-two,
The Analog input mModule 4 receives the main analog amount signal that heat-conducting oil furnace analog signals acquire equipment by transmitter.
2. a kind of fuel oil heat-conducting oil furnace electrical management system according to claim 1, it is characterised in that: the long-range monitoring
Equipment is smart phone, computer.
3. a kind of fuel oil heat-conducting oil furnace electrical management system according to claim 1, it is characterised in that: 18 points of numbers
It measures input point and uses PNP common-anode, power supply DC24V, inputting the on-off model equipment includes reset button, Guan Yuan
Journey, photocell eye, oiling pump startup, circulating pump electrothermal relay, burner electrothermal relay, filling pump electrothermal relay, circulating pump straight line
Contactor normally closed auxiliary contact, circulating pump triangle contactor normally closed auxiliary contact, circulating pump star contact normally closed auxiliary contact,
Filling pump contactor normally closed auxiliary contact, the normally opened auxiliary contact of circulating pump straight contact device, circulating pump triangle contactor are normally opened auxiliary
Contact is helped, each on-off model equipment is connect with each on-off model input terminal electric wire of PLC.
4. a kind of fuel oil heat-conducting oil furnace electrical management system according to claim 1, it is characterised in that: 12 points of numbers
Amount output point is connect with execution equipment by intermediate relay KA1-KA9, intermediate relay obtain it is electric after its normally opened contact 11-14 connect
It is logical to execute equipment coil, the executions equipment include include circulating pump straight contact device coil, circulating pump star contact coil,
Circulating pump triangle contactor coil, burner blower contactor coil, filling pump contactor coil, ignition transformer, safety valve,
Small fire solenoid valve, high fire solenoid valve.
5. a kind of fuel oil heat-conducting oil furnace electrical management system according to claim 4, it is characterised in that: the execution equipment
Control coil power supply be separately supplied, i.e., by intermediate relay KA1-KA9 receiving station digital output point control execution set
Standby control coil has two parts, and a part is contactor control coil in electrical cabinet, and a part is the work of electrical cabinet outer burner
Device driving coil, this two parts coil working voltage is all AC220V, and contactor control coil includes circulating pump in electrical cabinet
Straight contact device coil, circulating pump star contact coil, circulating pump triangle contactor coil, burner blower contactor line
Circle, filling pump contactor coil；Electrical cabinet outer burner equipment driving coil includes ignition transformer, safety valve, small fire
Solenoid valve, high fire solenoid valve.
6. a kind of fuel oil heat-conducting oil furnace electrical management system according to claim 1, it is characterised in that: the analog quantity letter
Number acquisition equipment include oil outlet temperature thermal resistance, returning-oil temperature thermal resistance, pressure sensor, liquid level sensor, supply voltage pass
Sensor, combustion air fan current sensor, circulating pump current sensor, returning-oil temperature thermal resistance, pressure sensor are mounted in conduction oil
On the oil return total pipeline of furnace, oil outlet temperature thermal resistance is on heat-conducting oil furnace oil outlet total pipeline, and liquid level sensor is mounted in thermally conductive
On oil expansion tank deck, voltage sense input is attempted by general supply breaker of plastic casing leading-out terminal L1, L3 phase line, circulating pump electricity
Flow sensor, which is worn, to be connect below the circulating pump electrothermal relay on motor power-supply wire, and combustion air fan current sensor, which is worn, to be connect in combustion air fan
Below electrothermal relay on motor power-supply wire, the signal that the oil outlet temperature thermal resistance, returning-oil temperature thermal resistance transmit is coupled with
On oil outlet temperature transmitter, returning-oil temperature transmitter, after becoming standard electric signal by transmitter, it is connected to the analog input of PLC
Module；The pressure sensor, liquid level sensor, voltage sensor, current sensor carry transmitter, standard telecommunications back
Number it is also coupled to PLC Analog input mModule.
7. a kind of fuel oil heat-conducting oil furnace electrical management system according to claim 1, it is characterised in that: the power distribution
Circuit includes three-phase AC380V general supply, main power source breaker of plastic casing, supply voltage transmitter, safety contactor, isolation transformation
Device is spaced apart, isolating transformer, terminal of the three-phase AC380V general supply inlet wire from heat-conducting oil furnace electrical cabinet mounting plate lower-left end
Access, through main power source breaker of plastic casing, divides two-way, removes motor main circuit all the way, removes control electric power loop all the way, moulds in main power source
Between L1, L3 phase line of case circuit breaker leading-out terminal and supply voltage transmitter is connect, Analog input mModule relies on supply voltage pick-up
The 4-20mA signal monitoring L1-L3 phase voltage of device output, between main power source breaker of plastic casing leading-out terminal L2, L3 phase line and connects isolation
Transformer is spaced apart, the 380V coil of safety contactor, and the 380V electricity to come from L2, L3 is through safety contactor two-phase main contacts 1-2
And 3-4, enter back into isolating transformer.
8. a kind of fuel oil heat-conducting oil furnace electrical management system according to claim 7, it is characterised in that: the control power supply
Circuit includes AC220V power supply and DC24V power supply, and the AC220V power supply is accessed through safety contactor two-phase main contacts
Again through isolating transformer output, the AC220V power supply is spaced apart by 220V power supply, divides after 220V scram button 380V voltage
Two-way, gives AC220V terminal block, headlamp and socket all the way, and another way access switch power supply is spaced apart, is whole through Switching Power Supply transformation
Stream output DC24V, distribute to DC24V terminal block, DC24V power supply needed for touch screen, PLC, Intelligent Industry Controller, from
DC24V terminal block is taken out.
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| CN201910051332.5A CN109917737A (en) | 2019-01-21 | 2019-01-21 | A kind of fuel oil heat-conducting oil furnace electrical management system |
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| CN201910051332.5A CN109917737A (en) | 2019-01-21 | 2019-01-21 | A kind of fuel oil heat-conducting oil furnace electrical management system |
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| CN112180778A (en) * | 2020-09-05 | 2021-01-05 | 保利长大工程有限公司 | Heat conduction oil furnace app cell-phone end monitored control system |
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Application publication date: 20190621 |