CN104865901A - Feed water pump control system and control method - Google Patents
Feed water pump control system and control method Download PDFInfo
- Publication number
- CN104865901A CN104865901A CN201410056964.8A CN201410056964A CN104865901A CN 104865901 A CN104865901 A CN 104865901A CN 201410056964 A CN201410056964 A CN 201410056964A CN 104865901 A CN104865901 A CN 104865901A
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- CN
- China
- Prior art keywords
- water pump
- unit
- pump control
- control module
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The present invention relates to a feed water pump control system and control method. The feed water pump control system and control method comprises a water pump control unit, a power supply unit, a sensor unit, a man-machine control unit and a relay auxiliary unit, overcomes the defect of a previous water pump control system, realizes the independent system integration design, is more reliable and stable, is easy in equipment maintenance and higher in real-time performance, possesses an operation recording function to trace the operated equipment, possesses a remote control function to realize the remote control and alarm functions, possesses a continuous self-detection function of hardware and software to obtain the maximum reliability, can modify the operation programs and the engineering data in an on-line manner, and can effectively protect the correlated equipment, such as the water pump, etc.
Description
Technical field
The control system of a kind of feed pump of the present invention and control method, the make-up pump control technology field related to, is applied to the operation and control of supply equipment.
Background technology
The control system of existing feed pump mostly adopts simple pure mechanical control method; manual or semiautomatic control water pump realizes the controlling functions of liquid level; many be exactly the control device of picture PLC mono-class; but such system architecture not only cost is huge; control rate and degree of accuracy are all relatively low; and defencive function is not had to the water pump of onsite application, security is not high.Can not adapt to control overflow constantly strict in commercial production life.
Summary of the invention
The present invention is in order to the control system logic overcoming existing feed pump is complicated, efficiency is poor, cost is high, operability is not high, control mode is single and cannot the defect of available protecting water pump; design is a kind of integrates measurement in real time, Based Intelligent Control, bus communication; liquid water level is controlled in commercial production life, and the control system that can realize a kind of feed pump that the relevant devices such as water pump shield and control method.
Its technology is achieved in that and comprises water pump control module, power supply unit, sensor unit, Human-machine Control unit, relay auxiliary unit composition, it is characterized in that: it connects is adopt power supply unit to be connected with water pump control module, Human-machine Control unit, sensor unit, provides respective working power; Relay auxiliary unit directly connects water pump body; Water pump control module to be connected by self passive outputing and to be controlled the break-make of relay auxiliary unit; Sensor unit connects and obtains related data by water pump control module self analog acquisition function; Water pump control module is connected with Human-machine Control unit and carries out exchanges data by RS485, and is presented in real time on Human-machine Control unit by system running state.Described power supply unit adopts double-current redundancy backup, the connected mode that described control system adopts manually and Based Intelligent Control combines.
Its control system control method is:
(1) sensor unit directly converts liquid level information to 4-20ma standard signal source, access water pump control module analog data collection interface, water pump control module its data Treatment Analysis obtains the instruction of corresponding water pump control action, relay auxiliary unit relevant device is controlled, final start-stop water pump by the passive output node of water pump control module self.
(2) power supply unit adopts dual power supply redundancy back up, the mode of alternating current-direct current seamless switching ensures the Electrical Safety of whole system; When power supply unit break down cause whole system to work time, system can be transformed into MANUAL CONTROL mode from automatic control mode, and guarantee system when still can manipulating without when accessory power supply, ensures safe operation.
(3) design of water pump control module adopts redundancy control method, ensures that multiple stage water pump can continue, safe operation.It completes the functions such as bus data receives, application process, functional realiey, logout, Communications service; Water pump control module is the core cell of whole system; perfect electrical isolation safeguard protection design; possess powerful data-handling capacity and application program management ability; there are 485 delivery outlets of standard simultaneously; adopt Modbus RTU communications protocol; support the communication of several system equipment room, coordinated signals, and support remote control and warning function.
The real time data of water pump control module receiving sensor unit, and analyzing and processing in addition.When occurring that liquid level is when reaching setting value, sensor unit is according to its setting parameter and water pump operation situation, determine whether it meets current idle starting of pump station condition or halt condition, this unit can arrange multiple starting conditions, unit or multimachine start, determine the size of flow by controlling multiple stage water pump, guarantee water end (W.E.) has enough water to use, and guarantees water safety; Break down at water pump and (comprise disconnected phase, overcurrent, under-voltage, ground protection, thermal overload etc.) time, intelligence selects other idle water pump actions, if the water pump broken down is just in running status, system will disconnect the power supply of water pump by force by relay auxiliary unit, in order to avoid larger fault, ensure system safety operation; When ensureing generation, water pump control module will notify man-machine control module, is preserved by fault data recorder, sends wireless signal announcement apparatus managerial personnel simultaneously.
(4) Human-machine Control unit provides man-machine interface, for touch-sensitive display presents.Human-machine Control unit and water pump control module carry out communication according to the MODBUS rtu protocol of standard; real-time display measurement data and on-off state; simultaneously can by the menu access system protection on touch-screen and operational factor; and amended parameter is returned to water pump control module; realize online modification parameter, also can revise parameter by the mode of telecommunication.
(5) relay auxiliary unit is the heavy-current control part of whole system, realizes the driving to water pump, and by receiving the dry contact signal that water pump control module exports, achieve a butt joint tentaculum, and the break-make of isolating switch controls, and controls the operation of water pump.
Implement the advantage after this technology and effect is: be first overcome the defect on control system of water pump in the past, realize independently system combination design, more reliable and stable, be also easy to the maintenance of equipment, real-time is higher; There is operation note function, can review the equipment of operation; There is distant control function, a distant place can be realized and control, warning function; The continuous oneself of hardware and software detects, to obtain maximum reliability; The amendment of working procedure can be carried out online, the amendment of project data can be carried out online; Native system integrate measure in real time, Based Intelligent Control, safe and reliable, in commercial production life, control liquid water level, a kind of control device relevant devices such as water pump being played to available protecting effect can be realized.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present invention;
Fig. 2 is present system workflow schematic diagram;
Wherein, 1-water pump control module, 2-power supply unit, 3-sensor unit, 4-Human-machine Control unit, 5-relay auxiliary unit, 6-water pump.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described:
See accompanying drawing 1,2, the present invention adopts power supply unit 2 to be connected with water pump control module 1, Human-machine Control unit 4, sensor unit 3, provides respective working power; Relay auxiliary unit 5 directly connects water pump 6; Water pump control module 1 passively outputs a break-make for connection control relay auxiliary unit 5 by self; Sensor unit 3 connects and obtains related data by water pump control module 1 self analog acquisition function; Water pump control module 1 is connected with Human-machine Control unit 4 and carries out exchanges data by RS485, and system architecture system running state is transferred on Human-machine Control unit 4, described power supply unit adopts double-current redundancy backup, the connected mode that described control system adopts manually and Based Intelligent Control combines.
Its control realization process is:
The control system of this feed pump is lasting, the safe and reliable operation of assurance device, system structure design adopts manually and mode that Based Intelligent Control combines, by power supply unit 2 be water pump control module 1, sensor unit 3, Human-machine Control unit 4 provide lasting reliable accessory power supply; Sensor unit 3 imports the information signals such as liquid level into water pump control module 1, concrete liquid level data is obtained through water pump control module 1 Treatment Analysis, and give corresponding water pump according to the running status of current water pump with " degree of fatigue " smart allocation task, send stop instruction to relay auxiliary unit 5 by it, finally gone to drive corresponding water pump 6 by relay auxiliary unit 5; Whole control procedure related data all can be reacted to by the communication connection between water pump control module 1 and Human-machine Control unit 4 on Human-machine Control unit 4, is finally presented running status and the implementation of whole system by it intuitively, and relevant warning message.In the process that system performs, if met accident or irresistible reason cause intelligent control part normally to work, then system can be braked and is transformed into manual mode, operation is directly gone by operator, ensure upper end watering equipment safe operation, certainly manually and auto state whenever all can switch operating mutually at other.
In water pump control module 1 process due to the appearance of a variety of causes may cause by control water pump refuse close or refuse jump situation occur, this is that we design other water pumps of water pump control module 1 intelligent selection distribution relevant " task ", ensures that water pump operation quantity ensures the flow control of water supply system in other words; When the machine fault appears in water pump 6, we take such allocation scheme equally, and detect according to certain time interval and wake faulty motor up, utilize system resource to greatest extent, normal, reliable, the continuous service of abundant guarantee system.Real time reaction notifies operational management personnel to backstage when a fault has occurred, and ensure that the safe operation of whole device systems is produced, operability, maintainability obtain withdraws deposit fully.
Claims (4)
1. a feed pump control system and control method: comprise water pump control module, power supply unit, sensor unit, Human-machine Control unit, relay auxiliary unit composition, it is characterized in that: it connects is adopt power supply unit to be connected with water pump control module, Human-machine Control unit, sensor unit, provides respective working power; Relay auxiliary unit directly connects outside water pump body; Water pump control module is by self passive break-make outputing point control relay auxiliary unit; Sensor unit obtains related data by water pump control module self analog acquisition function; Water pump control module and Human-machine Control unit carry out exchanges data by RS485, and are presented in real time on Human-machine Control unit by system running state.
2. a kind of feed pump control system according to claim 1 and control method, it is characterized in that: sensor unit directly converts liquid level information to 4-20ma standard signal source, access water pump control module analog data collection interface, water pump control module its data Treatment Analysis obtains the instruction of corresponding water pump control action, relay auxiliary unit relevant device is controlled, final start-stop water pump by the passive output node of water pump control module self.
3. a kind of feed pump control system according to claim 1 and control method, is characterized in that: dual power supply redundancy backup on power supply unit, and the mode of alternating current-direct current seamless switching ensures the Electrical Safety of whole system; When power supply unit break down cause whole system to work time, system can be transformed into MANUAL CONTROL mode from automatic control mode, and guarantee system when still can manipulating without when accessory power supply, ensures safe operation.
4. a kind of feed pump control system according to claim 1 and control method, is characterized in that: the design of water pump control module designs redundancy control method, ensures that multiple stage water pump can continue, safe operation; It completes the functions such as bus data receives, application process, functional realiey, logout, Communications service; Water pump control module supports the communication of several system equipment room, coordinated signals, and supports remote control and warning function; When water pump breaks down, water pump control module intelligence selects other idle water pump actions, if the water pump broken down is just in running status, system will disconnect the power supply of water pump by force by relay auxiliary unit, in order to avoid larger fault, ensure system safety operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410056964.8A CN104865901A (en) | 2014-02-20 | 2014-02-20 | Feed water pump control system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410056964.8A CN104865901A (en) | 2014-02-20 | 2014-02-20 | Feed water pump control system and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104865901A true CN104865901A (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410056964.8A Pending CN104865901A (en) | 2014-02-20 | 2014-02-20 | Feed water pump control system and control method |
Country Status (1)
| Country | Link |
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| CN (1) | CN104865901A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114002945A (en) * | 2021-12-29 | 2022-02-01 | 潍坊力德电器有限公司 | Intelligent water supply control cabinet with multiple redundant control modules |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5992237A (en) * | 1997-07-22 | 1999-11-30 | Skf Condition Monitoring, Inc. | Digital vibration coupling stud |
| US6331823B1 (en) * | 1995-11-06 | 2001-12-18 | Reliance Electric Technologies, Llc | Monitoring system for bearings |
| CN103076819A (en) * | 2011-10-25 | 2013-05-01 | 上海华建电力设备股份有限公司 | Liquid level control device and data processing |
| CN203238706U (en) * | 2013-03-26 | 2013-10-16 | 安徽兴安电气设备科技有限公司 | Redundancy control system in secondary water supply system |
-
2014
- 2014-02-20 CN CN201410056964.8A patent/CN104865901A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6331823B1 (en) * | 1995-11-06 | 2001-12-18 | Reliance Electric Technologies, Llc | Monitoring system for bearings |
| US5992237A (en) * | 1997-07-22 | 1999-11-30 | Skf Condition Monitoring, Inc. | Digital vibration coupling stud |
| CN103076819A (en) * | 2011-10-25 | 2013-05-01 | 上海华建电力设备股份有限公司 | Liquid level control device and data processing |
| CN203238706U (en) * | 2013-03-26 | 2013-10-16 | 安徽兴安电气设备科技有限公司 | Redundancy control system in secondary water supply system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114002945A (en) * | 2021-12-29 | 2022-02-01 | 潍坊力德电器有限公司 | Intelligent water supply control cabinet with multiple redundant control modules |
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Application publication date: 20150826 |