CN105573243A - Pump station monitoring system based on PLC - Google Patents
Pump station monitoring system based on PLC Download PDFInfo
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- CN105573243A CN105573243A CN201610156507.5A CN201610156507A CN105573243A CN 105573243 A CN105573243 A CN 105573243A CN 201610156507 A CN201610156507 A CN 201610156507A CN 105573243 A CN105573243 A CN 105573243A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14006—Safety, monitoring in general
Abstract
The invention provides a pump station monitoring system based on a PLC. The pump station monitoring system comprises a PLC control cabinet and a PLC shell cabinet. The PLC control cabinet is provided with a PLC module which is connected with an input and output signal connecting terminal and an output isolation relay. The PLC shell cabinet is provided with a USP power supply system, a signal upload drainage company acquisition device, a network switch and an input and output signal connecting terminal. The pump station monitoring system based on the PLC (Programmable Logic Controller) is provided for influence of an automatic control system on a pump station caused by severe aging of software and hardware and increasing failure rate due to increasing number of service years so that operation efficiency of the pump station can be enhanced, available rate of pumping station equipment can be enhanced and long term of stable and automatic operation can be realized.
Description
Technical field
The present invention relates to the technical fields such as machinery, robotization, PLC, control, and in particular to a kind of pumping station monitoring system based on PLC.
Background technology
Along with the high speed development of world economy, the strategic position of water resource becomes more and more important, and effective utilization of water resource and effective improvement are subject to the attention of countries in the world government day by day.Unique man power source of pumping plant---water, pumping plant, because its efficiency is high, energy-conserving and environment-protective, has been widely used in various industry.As important engineering measure, be all play the effect do not replaced in the rational management or improvement of water resource.Meanwhile, pumping plant plays an important role in flood control, draining, drought resisting, agricultural and process water and living standard of urban and rural population water.
Pumping plant as big power consumer, control system through using for many years, and due to switch board install low to join erosion property gas concentration in room higher, summer high-temperature is on equipment impact significantly.These environment factors cause ageing equipment serious, and the failure rate that control system component fault, particularly PLC module and intelligent electric power parameter measurement instrument often occur in recent years is very high, and maintenance difficulty is very large.Consider that system is overall aging, maintenance cost expenditure is increasing, in order to play the superiority of pumping station monitoring system better, alleviates the working strength of operator, ensures the normal operation of flood control pumping station equipment, needs badly and renovate to control system.
Summary of the invention
The present invention is directed to robot control system(RCS) along with increasing tenure of use, aging serious, the failure rate of software and hardware constantly increases impact on pumping plant, propose a kind of based on PLC (ProgrammableLogicController, programmable logic controller (PLC) part) pumping station monitoring system, improve pumping station operation efficiency, realize equipment of pumping station available rate to improve, steady in a long-term and automatic operating.
In order to achieve the above object, the present invention proposes a kind of pumping station monitoring system based on PLC, comprise: PLC control cabinet and PLC housing cabinet, wherein said PLC control cabinet is provided with PLC module, it is connected to input/output signal connection terminal and exports disconnecting relay, and described PLC housing cabinet is provided with ups power system, signal uploads draining company harvester, network switch and input/output signal connection terminal.
Further, the On-off signal signal of described PLC control cabinet adopts Phototube Coupling input, and output signal adopts relay isolation and amplifier, and analog input signal adopts corresponding isolation module to input.
Further, described PLC control cabinet is provided with input/output signal connection terminal for subsequent use.
Further, described PLC module is carried out PLC and is controlled a point Three models realization, i.e. reserved distance control mode, on the spot control model and maintenance model,
Wherein said reserved distance control mode refers to the pattern run by wired PSTN or wireless digital broadcasting station mode Long-distance Control equipment of pumping station/stopped;
Described control model is on the spot divided into manual/auto two kinds of control models, automatic control mode can control field apparatus automatically by the rule of making an appointment and control method on the spot, utilize the logic control function of PLC, there is provided the automatic control of equipment and the interlock of associate device, chain control, described manual mode on the spot carries out manual operation by the start/stop button clicked on screen to single device on man machine operation interface.
Further, described PLC module comprises water pump control modules, gate control module and threshold monitoring and alarm module,
Wherein said water pump control modules is used for performing rain sewage pump in pumping plant automatically controlling, and determines the start number of units of water pump according to height of water level after grid;
The position signalling of gate, lifting action signal, alerting signal are delivered to PLC module by described gate control module;
Described threshold monitoring and alarm module monitor equipment operating condition, comprising the supervision of power threshold and technique threshold value, described power threshold comprises: primary voltage, pumping plant low-pressure side total current, general power, total electricity, pump motor electric current, technique threshold value comprises: bound water level, total water flow, stores as alarm logging the out-of-limit value of threshold value and out-of-limit moment, and by PLC module output alarm signal.
Further, this system is also provided with level digital display table, for the observation to liquid level, increase by 18 cover current transducers cashier's office in a shop at six starting mode of pump simultaneously, two low voltage incoming line cabinets increase by 6 cover voltage transmitters, arrange that signal cable is connected with PLC module, improve the reliability that current and voltage signals gathers.
Further, this system also comprises monitoring device module, and it is monitored by pumping plant computing machine, and is designed with industrial computer human-computer interaction interface, it comprises the total module of pumping station operation technique, sequence of events recording module, distribution system module, alert process module and trend record module
The total module of wherein said pumping station operation technique, according to the actual arrangement position of equipment of pumping station, is set up pumping station operation technique and is always schemed, and accurately shows the facility information of water level, each water pump operation state and position of strobe state;
Described sequence of events recording module is according to the time of origin of switching signal and device fault information, and supervisory system, by the scene of timely recording events or accident and time, is conveniently inquired about;
Described distribution system diagram module in charge shows every parameters of electric power in real time, comprises state and the power measurement parameter of pumping plant power distribution cabinet;
Described alert process module for monitoring that production run, equipment state and operational factor change, and can carry out corresponding safe handling to overtime overload alarm;
Described trend record module has real-time tendency and chart query function, and the rainfall in record long term time and SEA LEVEL VARIATION curve, facilitate pumping plant regulatory requirement.
The present invention is directed to robot control system(RCS) along with increasing tenure of use, aging serious, the failure rate of software and hardware constantly increases impact on pumping plant, a kind of pumping station monitoring system based on PLC is proposed, improve pumping station operation efficiency, realize equipment of pumping station available rate and improve, steady in a long-term and automatic operating.Solve the problem such as signals collecting out of true, maintenance cost height that ageing equipment is brought.Finally devise the man-machine interactive platform of supervisory system, achieve key equipment and monitor in real time.
Accompanying drawing explanation
Figure 1 shows that the pumping station monitoring system structural representation based on PLC of present pre-ferred embodiments.
Figure 2 shows that the pumping station controlling system structural representation of present pre-ferred embodiments.
Figure 3 shows that the industrial computer human-computer interaction interface schematic diagram of present pre-ferred embodiments.
Figure 4 shows that the total figure schematic diagram of the pumping station operation technique of present pre-ferred embodiments.
Figure 5 shows that the sequence of events recording schematic diagram of present pre-ferred embodiments.
Figure 6 shows that the distribution system schematic diagram of present pre-ferred embodiments.
Figure 7 shows that the alarm database schematic diagram of present pre-ferred embodiments.
Figure 8 shows that the trend record schematic diagram of present pre-ferred embodiments.
Embodiment
Provide the specific embodiment of the present invention below in conjunction with accompanying drawing, but the invention is not restricted to following embodiment.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only for object that is convenient, the aid illustration embodiment of the present invention lucidly.
Please refer to Fig. 1, Figure 1 shows that the pumping station monitoring system structural representation based on PLC of present pre-ferred embodiments.The present invention proposes a kind of pumping station monitoring system based on PLC, comprise: PLC control cabinet 100 and PLC housing cabinet 200, wherein said PLC control cabinet 100 is provided with PLC module 110, it is connected to input/output signal connection terminal 120 and exports disconnecting relay 130, and described PLC housing cabinet 200 is provided with ups power system 210, signal uploads draining company harvester 220, network switch 230 and input/output signal connection terminal 240.
According to present pre-ferred embodiments, computer supervisory control system carries out overall design by standard, Equipments Setting is carried out in line with safe and reliable, advanced technology, economic, practical principle, formulate following structural framing: the On-off signal signal of described PLC control cabinet adopts Phototube Coupling input, output signal adopts relay isolation and amplifier, and analog input signal adopts corresponding isolation module to input.In addition consider that site environment is corrosive gas, switch board adopts high-grade Schneider brand, and sealing also will reach higher level of protection.
Further, described PLC control cabinet is provided with input/output signal connection terminal for subsequent use.System after renovating can meet the requirement of equipment stable operation in the five-year, and the input and output point of reserved some does for subsequent use, can carry out System Expansion easily.
Figure 2 shows that the pumping station controlling system structural representation of present pre-ferred embodiments.Described PLC module is carried out PLC and is controlled a point Three models realization, i.e. reserved distance control mode, on the spot control model and maintenance model, wherein said reserved distance control mode refers to the pattern run by wired PSTN or wireless digital broadcasting station mode Long-distance Control equipment of pumping station/stopped, it is implemented by dispatching center's supervisory system, for higher level's supervisory system of pumping station controlling system, realize the Long-distance Control to pumping plant, remote data acquisition.
Described control model is on the spot divided into manual/auto two kinds of control models, automatic control mode can control field apparatus automatically by the rule of making an appointment and control method on the spot, utilize the logic control function of PLC, the automatic control of equipment and the interlock of associate device, chain control are provided.
In this mode, control system is before startup pump on the spot, first to judge each inlet gate, go out sluice gate and whether be in corresponding rational position, if there is gate to be in unreasonable position, then to report to the police, according to pre-set controling parameters (as liquid level, liquid level difference, flow etc.), rationally start relevant device (as pump group, grid sewage-removing machine etc.) to reach the object automatically controlled.
Described manual mode on the spot carries out manual operation by the start/stop button clicked on screen to single device on man machine operation interface.
Described PLC module comprises water pump control modules, gate control module and threshold monitoring and alarm module.
Wherein, described water pump control modules is used for performing rain sewage pump in pumping plant automatically controlling, and the output control signal of start and stop pump is pulse signal, and its amplitude and width are formulated according to actual needs, adjusted.Determine the start number of units of water pump according to height of water level after grid, source water level, higher than upper increase pump in limited time, after postponing certain hour, is still then established a water pump again newly higher than the upper limit, is ensured reasonably to distribute startup.Water level stops one in limited time automatically lower than lower, after postponing certain hour, still then stops one again lower than lower limit, so analogizes.
Make the pump first started first stop in principle, to realize recycling of pump, the duration of runs of making every effort to pump is impartial, and avoids a pump to open, stops the too much phenomenon of number of times and occur.
With continuous three the startup water pumps failure of predetermined time interval, devices illustrated has fault, cannot start, and should automatically start next pump, the pump number of fault is set up mark with the form of status word simultaneously.
When before and after grid, in liquid level, any one numerical value is lower than pumping plant minimum liquid level, No starting water pump, the water pump hard stop run.Water pump start-stop time in a certain time interval will require to perform in strict accordance with pump characteristics.The working time of every platform water pump will add up and record, to ensure the even of the working time of each water pump, simultaneously according to pump group maintenance requirement, propose maintenance suggestion.
The position signalling of gate, lifting action signal, alerting signal are delivered to PLC module by described gate control module; The control of gate has maintenance and controls two kinds of patterns on the spot, is selected by the switch on gate control box panel, and the priority of maintenance control model is higher than control model on the spot.The state of mode conversion switch should feed back to PLC.
Maintenance model: the button on manual operation gate or gate valve control box panel, the opening and closing of control gate.
Control model on the spot: gate or gate valve perform the keying control command from PLC.Operating personnel can the opening and closing of manual control gate on the operation interface of PLC.
System, when converting automatic mode to, will detect each gate status automatically, and when there being gate to be in unreasonable state, system will produce warning automatically when turn on pump.
The control of grid sewage-removing machine and squeezer conveyor
Before and after the status signal of grid sewage-removing machine, squeezer, conveyor (run, stop, reporting to the police) and grid, liquid level signal all should deliver to PLC.The control of grid sewage-removing machine and squeezer, conveyor has maintenance and controls two kinds of patterns on the spot, control box panel is arranged maintenance and controls switch on the spot, and by manual switching control model, the priority of maintenance model is higher than control model on the spot.The feedback of status of mode conversion switch is to PLC.
Maintenance model: the button on manual operation equipment control case panel, controls the startup of corresponding equipment, stopping.
Control model on the spot: PLC presses startup and the stopping of liquid level difference and programmed control grid sewage-removing machine prepared in advance before and after grid, and before and after grid, liquid level difference can not be greater than 0.2m.
Described threshold monitoring and alarm module monitor equipment operating condition, comprising the supervision of power threshold and technique threshold value, described power threshold comprises: primary voltage, pumping plant low-pressure side total current, general power, total electricity, pump motor electric current, technique threshold value comprises: bound water level, total water flow, stores as alarm logging the out-of-limit value of threshold value and out-of-limit moment, and by PLC module output alarm signal.
Alerting signal classification is as follows:
A) lead-in circuit breaker tripping operation; B) low voltage incoming line cabinet excess current; C) pump motor excess current; D) pump motor start unsuccessfully with pump group fault; E) fault gate and control unsuccessfully; F) superelevation liquid level, ultralow liquid level; G) grid sewage-removing machine fault and start unsuccessfully; H) squeezer, conveyor fault and start unsuccessfully; I) instrument, transmitter fault.
Further, this system is also provided with level digital display table, for the observation to liquid level, increase by 18 cover current transducers cashier's office in a shop at six starting mode of pump simultaneously, two low voltage incoming line cabinets increase by 6 cover voltage transmitters, arrange that signal cable is connected with PLC module, improve the reliability that current and voltage signals gathers.
This system also comprises monitoring device module, it is monitored by pumping plant computing machine, and being designed with industrial computer human-computer interaction interface, it comprises the total module of pumping station operation technique, sequence of events recording module, distribution system module, alert process module and trend record module.
Monitoring application software adopts the KingView software of sub-control science and technology, can be formed distributed system architecture with the form of client and server.KingView monitoring software possesses the real-time data acquisition in industrial automation application; report to the police and incident management; history data store, report generation; the communication of this locality and remote PLC/RTU; Data Control; good design and configuration function (man-machine interface), and have the security setting functions such as classification authority and cryptoguard.
KingView supervisory system can carry out corresponding safe handling to various type of alarm, and corresponding pilot lamp can be had on monitoring image to glimmer, and sends alarm sound simultaneously and is pointed out.Warning object, content, the time can list records or printing.KingView has all-graphic interface, fully integrated, OO development scheme, makes system developer easy to use, easy to learn.
These software systems should be distributed plateform systems, comprise Integrated Development Environment, the Industry RealTime Database System of store historical data, for the HMI software of process visualization, for inquiry, analyze, report generation, the demonstration tool of the functions such as trend, distributed alert service system, and carry out with multiple PLC or third-party application program the independent acquisition software that communicates.
The framework of KingView monitoring software system is advanced, complete, and has enough dirigibilities, one-of-a-kind system easily can be expanded to and possess single or redundance unit communication system and historical data base large-scale distributed network system.
Man-machine interface is Chinese interface, easy and simple to handle, flexible, reliable, and dialog prompt is accurately clear, has consistance; Run the computer monitor system for pump station collection site device data of KingView, generate the technological process of production of whole pumping plant, the real-time Dynamic Graph of electric system, for pumping plant production operation personnel provide clear, friendly man-machine observation interface.
Regulatory requirement according to current drainage pumping plant carries out by the design of interface major function, main function comprises equipment of pumping station operated from a distance, equipment operating condition real time monitoring, operator on duty's equipment operating record, the each equipment logout of pumping plant, pumping station operation operating mode trilinear chart record etc., and the operation history data can preserved within a year is for consulting.
According to Dynamic System Permission Design, operator's level privileges can only monitor system equipment, regulating and controlling and optimum configurations, and only has slip-stick artist's authority just to allow to install, revise or test various application software; Ensure that the stability in day-to-day operation.
Upper location supervisory is system platform with KingView, writes upper location supervisory, according to the requirement of whole supervisory system, and system function module structure (as shown in Figure 3).
Please refer to Fig. 4, Figure 4 shows that the total figure schematic diagram of the pumping station operation technique of present pre-ferred embodiments.The total module of wherein said pumping station operation technique, according to the actual arrangement position of equipment of pumping station, is set up pumping station operation technique and is always schemed, and accurately shows the facility information of water level, each water pump operation state and position of strobe state.
Please refer to Fig. 5, Figure 5 shows that the sequence of events recording schematic diagram of present pre-ferred embodiments.Described sequence of events recording module is according to the time of origin of switching signal and device fault information, and supervisory system, by the scene of timely recording events or accident and time, is conveniently inquired about; Engineering development personnel according to the event sequence of event or accident record, can analyze culprit, and the input of switch amount signal has corresponding signal filter, to prevent the repeatedly input of dither signal.
Figure 6 shows that the distribution system schematic diagram of present pre-ferred embodiments.Described distribution system diagram module in charge shows every parameters of electric power in real time, comprises state and the power measurement parameter of pumping plant power distribution cabinet.
Please refer to Fig. 7, Figure 7 shows that the alarm database schematic diagram of present pre-ferred embodiments.Described alert process module for monitoring that production run, equipment state and operational factor change, and can carry out corresponding safe handling to overtime overload alarm; Energy automatic diagnosis goes out the abnormality in pumping station operation process, and the alerting signal that the fault of field control equipment or communication system generation also occurs, when process detects or running device occurs out-of-limit or fault, on process chart, flashing red light is pointed out with alarm sound by corresponding legend.Remove alarm sound by keyboard or touch-screen, after Failure elimination, status color recovers normal.
Should mark to report to the police for confirmed warning and markers occurs, and stored in alarm database.
Please refer to Fig. 8, Figure 8 shows that the trend record schematic diagram of present pre-ferred embodiments.Described trend record module has real-time tendency and chart query function, and the rainfall in record long term time and SEA LEVEL VARIATION curve, facilitate pumping plant regulatory requirement.
The present invention is directed to robot control system(RCS) along with increasing tenure of use, aging serious, the failure rate of software and hardware constantly increases impact on pumping plant, a kind of pumping station monitoring system based on PLC is proposed, improve pumping station operation efficiency, realize equipment of pumping station available rate and improve, steady in a long-term and automatic operating.Solve the problem such as signals collecting out of true, maintenance cost height that ageing equipment is brought.Finally devise the man-machine interactive platform of supervisory system, achieve key equipment and monitor in real time.
Although the present invention with preferred embodiment disclose as above, so itself and be not used to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on those as defined in claim.
Claims (7)
1. the pumping station monitoring system based on PLC, it is characterized in that, comprise: PLC control cabinet and PLC housing cabinet, wherein said PLC control cabinet is provided with PLC module, it is connected to input/output signal connection terminal and exports disconnecting relay, and described PLC housing cabinet is provided with ups power system, signal uploads draining company harvester, network switch and input/output signal connection terminal.
2. the pumping station monitoring system based on PLC according to claim 1, it is characterized in that, the On-off signal signal of described PLC control cabinet adopts Phototube Coupling input, and output signal adopts relay isolation and amplifier, and analog input signal adopts corresponding isolation module to input.
3. the pumping station monitoring system based on PLC according to claim 1, is characterized in that, described PLC control cabinet is provided with input/output signal connection terminal for subsequent use.
4. the pumping station monitoring system based on PLC according to claim 1, is characterized in that, described PLC module is carried out PLC and controlled a point Three models realization, i.e. reserved distance control mode, on the spot control model and maintenance model,
Wherein said reserved distance control mode refers to the pattern run by wired PSTN or wireless digital broadcasting station mode Long-distance Control equipment of pumping station/stopped;
Described control model is on the spot divided into manual/auto two kinds of control models, automatic control mode can control field apparatus automatically by the rule of making an appointment and control method on the spot, utilize the logic control function of PLC, there is provided the automatic control of equipment and the interlock of associate device, chain control, described manual mode on the spot carries out manual operation by the start/stop button clicked on screen to single device on man machine operation interface.
5. the pumping station monitoring system based on PLC according to claim 1, is characterized in that, described PLC module comprises water pump control modules, gate control module and threshold monitoring and alarm module,
Wherein said water pump control modules is used for performing rain sewage pump in pumping plant automatically controlling, and determines the start number of units of water pump according to height of water level after grid;
The position signalling of gate, lifting action signal, alerting signal are delivered to PLC module by described gate control module;
Described threshold monitoring and alarm module monitor equipment operating condition, comprising the supervision of power threshold and technique threshold value, described power threshold comprises: primary voltage, pumping plant low-pressure side total current, general power, total electricity, pump motor electric current, technique threshold value comprises: bound water level, total water flow, stores as alarm logging the out-of-limit value of threshold value and out-of-limit moment, and by PLC module output alarm signal.
6. the pumping station monitoring system based on PLC according to claim 1, it is characterized in that, this system is also provided with level digital display table, for the observation to liquid level, increase by 18 cover current transducers cashier's office in a shop at six starting mode of pump simultaneously, two low voltage incoming line cabinets increase by 6 cover voltage transmitters, arranges that signal cable is connected with PLC module, improve the reliability that current and voltage signals gathers.
7. the pumping station monitoring system based on PLC according to claim 1, it is characterized in that, this system also comprises monitoring device module, it is monitored by pumping plant computing machine, and be designed with industrial computer human-computer interaction interface, it comprises the total module of pumping station operation technique, sequence of events recording module, distribution system module, alert process module and trend record module
The total module of wherein said pumping station operation technique, according to the actual arrangement position of equipment of pumping station, is set up pumping station operation technique and is always schemed, and accurately shows the facility information of water level, each water pump operation state and position of strobe state;
Described sequence of events recording module is according to the time of origin of switching signal and device fault information, and supervisory system, by the scene of timely recording events or accident and time, is conveniently inquired about;
Described distribution system diagram module in charge shows every parameters of electric power in real time, comprises state and the power measurement parameter of pumping plant power distribution cabinet;
Described alert process module for monitoring that production run, equipment state and operational factor change, and can carry out corresponding safe handling to overtime overload alarm;
Described trend record module has real-time tendency and chart query function, and the rainfall in record long term time and SEA LEVEL VARIATION curve, facilitate pumping plant regulatory requirement.
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| CN107091222A (en) * | 2017-06-15 | 2017-08-25 | 福州福光水务科技有限公司 | A kind of energy saving in pumping station optimal control method and system |
| CN107450616A (en) * | 2017-09-04 | 2017-12-08 | 嘉兴奥拓迈讯自动化控制技术有限公司 | Supersonic liquid level detection Full-automatic drainage water drainage control system |
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