CN202091169U - Dewatering pump control device based on programmable logic controller (PLC) - Google Patents
Dewatering pump control device based on programmable logic controller (PLC) Download PDFInfo
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- CN202091169U CN202091169U CN2011202133955U CN201120213395U CN202091169U CN 202091169 U CN202091169 U CN 202091169U CN 2011202133955 U CN2011202133955 U CN 2011202133955U CN 201120213395 U CN201120213395 U CN 201120213395U CN 202091169 U CN202091169 U CN 202091169U
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- draining pump
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Abstract
The utility model provides a dewatering pump control device based on a programmable logic controller (PLC). A wire connecting terminal of each phase of two three-phase motors of the device is respectively provided with a bidirectional silicon controlled rectifier connected with power grid, a corresponding control output end of a PLC program controller is respectively provided with an intermediate relay which enables the two three-phase motors to run alternately, and a corresponding control output end of the PLC is respectively provided with two rows of dewatering pump simultaneous-fault audible and visual alarms and an overhigh liquid level display lamp. The PLC is respectively provided with a manual-automatic change-over switch, a pump start button, a lower liquid level shut-down and shut-down button, a normally-open-contact control input end of the two three-phase motors, a high liquid level switch and an overflow liquid level switch control input end, a dewatering pump fault display lamp and a dewatering pump fault removing button. The dewatering pump control device based on the PLC has the advantages of being low in fault rate, stable in running, energy-saving and consumption-reducing and having a commonly-used dewatering pump and a spare dewatering pump which are capable of being controlled in manual and automatic modes.
Description
Technical field
The utility model belongs to control gear, particularly relates to a kind of discharge pump control device based on PLC.
Background technique
In the prior art, drainage pumping plant is for the mode of the general employing the using and the reserved of being provided with of draining pump, and its control mechanism comprises major loop and control loop.Major loop is meant that the three phase electric machine of two draining pumps is connected in electrical network via A.C. contactor respectively, and control loop is made of relay, push-button switch, liquid-level switch, tutorial light, alarm speaker and three phase electric machine circuit breaker etc.
There is following subject matter in the control mechanism of above-mentioned the using and the reserved draining pump: the three phase electric machine of (1) two draining pump is connected in electrical network via A.C. contactor respectively, contacts of contactor is often because of the carbonization of adhesive spark, is prone to the bad connection fault and influences draining pump stable operation; The control loop of (2) two three phase electric machines repeats to be provided with, and the control cabinet wiring is many, solder joint is many, and rate of fault is higher, reliability is relatively poor; (3) its power consumption of electromagnetic device such as the more use contactor of major loop and control loop, relay is bigger.
Summary of the invention
The utility model is the above-mentioned technical problem that exists for the draining pump control mechanism that overcomes existing the using and the reserved set-up mode, and provides a kind of rate of fault low, the stable and energy-saving and cost-reducing discharge pump control device based on PLC.
The utility model is taked following technological scheme for achieving the above object: this discharge pump control device comprises the 1st and the 2nd three phase electric machine that drives 1# and 2# draining pump respectively; make the auxiliary reclay of three phase electric machine alternate run; control the push-button switch that starts or stops of each three phase electric machine respectively; liquid-level switch; tutorial light; alarm speaker and be arranged at the circuit breaker of the 1st and the 2nd three phase electric machine respectively; feature is; each phase connection terminal of the 1st and the 2nd three phase electric machine is respectively equipped with the bidirectional triode thyristor that is connected in electrical network; the corresponding control output end of PLC program controller is respectively equipped with the 1st and the 2nd auxiliary reclay that makes the 1st and the 2nd three phase electric machine alternate run; each normally opened contact correspondence of the described the 1st and the 2nd auxiliary reclay is series at each The Trigger of Bidirectional Triode Thyristor circuit of respective three-phase motor; the corresponding control output end of described PLC program controller also is respectively equipped with 1# and 2# draining pump simultaneous faults audible-visual annunciator and liquid level superelevation display lamp; described PLC program controller is respectively equipped with the manual selection 1# of manual-automatic switch; 2# draining pump and automatic operation control input end; pump startup fingertip control input end; low liquid level halt switch and stop botton control input end; the 1st three phase electric machine circuit breaker normally opened contact control input end; the 2nd three phase electric machine circuit breaker normally opened contact control input end; high level switch control input end and overflowing liquid bit switch control input end; wherein the 1st three phase electric machine circuit breaker normally opened contact control input end and the 2nd three phase electric machine circuit breaker normally opened contact control input end also are connected with 1# draining pump fault display lamp and 2# draining pump fault display lamp respectively, are provided with disengage button in the loop of described 1# and 2# draining pump simultaneous faults audible-visual annunciator and liquid level superelevation display lamp.
The utility model can also be taked following technical measures:
Described 1# and 2# draining pump simultaneous faults audible-visual annunciator, 1# and 2# draining pump fault display lamp, liquid level superelevation display lamp and manual-automatic switch are arranged at the panel of discharge pump control device.
The panel of described discharge pump control device also is provided with 1#, 2# draining pump operation display lamp and shuts down display lamp.
The beneficial effects of the utility model are with advantage: the 1st of this discharge pump control device adopts bidirectional triode thyristor and electrical network to realize contactless the connection respectively with the 2nd three phase electric machine, has thoroughly solved the disadvantage of contacts of contactor because of the carbonization of adhesive spark.This control gear adopts the PLC program controller to realize each function control, has obviously reduced the electromagnetic device use amount that repeats to be provided with, and has not only reduced the assembling work amount and the potential faults of control cabinet, has also obviously reduced the consumption of electric energy.This discharge pump control device is owing to adopt PLC control, can the flexible expansion function, be convenient to realize computer network Centralized Monitoring function.The utlity model has rate of fault low, stable, energy-saving and cost-reducing and have concurrently the draining pump the using and the reserved automatically, the manual outstanding advantage of control.
Description of drawings
Accompanying drawing 1 is this control gear main loop circuit figure.
Accompanying drawing 2 is this control gear control loop circuit diagram.
Accompanying drawing 3 is 1#, 2# draining pump operation display lamp and shuts down the display lamp circuit diagram.
Accompanying drawing 4 is this control gear panel structure schematic representation.
Embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing thereof.
Embodiment as shown in Figure 1,1# and 2# draining pump are driven by the 1st three phase electric machine M1 and the 2nd three phase electric machine M2 respectively.
Each phase connection terminal of the 1st three phase electric machine M1 is provided with respectively and is connected in electrical network L1, L2, bidirectional triode thyristor VT1, the VT2 of L3 phase line, VT3 through fus FU and circuit breaker Q K1.
Each phase connection terminal of the 2nd three phase electric machine 2 is provided with respectively and is connected in electrical network L1, L2, bidirectional triode thyristor VT4, the VT5 of L3 phase line, VT6 through fus FU and circuit breaker Q K2.
As shown in Figure 1, 2, the Q0 of PLC program controller and Q1 control output end are respectively equipped with the 1st auxiliary reclay KM1 and the 2nd auxiliary reclay KM2 that makes the 1st and the 2nd three phase electric machine alternate run.
Each normally opened contact KM1-1, KM1-2 of the 1st auxiliary reclay KM1, KM1-3 correspondence are series at each bidirectional triode thyristor VT1, VT2 of the 1st three phase electric machine M1, the trigger circuit that are made of resistance R 1, R2, R3 respectively of VT3.
Each normally opened contact KM2-1, KM2-2 of the 2nd auxiliary reclay KM2, KM2-3 correspondence are series at each bidirectional triode thyristor VT4, VT5 of the 2nd three phase electric machine M2, the trigger circuit that are made of resistance R 4, R5, R5 respectively of VT6.
As shown in Figure 2, PLC program controller Q2 control output end is provided with 1# and 2# draining pump simultaneous faults audible-visual annunciator, and this alarm is made of display lamp D4 and loudspeaker HD.PLC program controller Q3 control output end is provided with liquid level superelevation display lamp D6.Be provided with disengage button AN3 in the loop of 1# and 2# draining pump simultaneous faults audible-visual annunciator and liquid level superelevation display lamp.
As shown in Figure 2, PLC program controller control input end X4, X7, X8 are connected to the automatic operation contact QS-1 of manual-automatic switch QS, manually select the 1# draining pump to move contact QS-2 and manually select 2# draining pump operation contact QS-3.
PLC program controller control input end X6 is connected in pump startup button AN2, and control input end X5 is connected in that be in series, normally closed low liquid level halt switch SL1 and stop botton AN1.
PLC program controller control input end X2 and X3 are connected to the 1st three phase electric machine circuit breaker Q K1 one normally opened contact shown in Figure 1 and the 2nd three phase electric machine circuit breaker Q K2 one normally opened contact, also are connected with 1# draining pump fault display lamp D5 and 2# draining pump fault display lamp D7 between control input end X2 and X3 and the center line N respectively.
PLC program controller control input end X1 is connected in high level switch SL3, and control input end X0 is connected in overflowing liquid bit switch SL1.
As shown in Figure 3,1# and 2# draining pump all are provided with the operation display lamp and shut down display lamp.Specifically, the normally opened contact of the 1st auxiliary reclay KM1 is series in the loop of 1# draining pump operation display lamp D0, and the normally-closed contact of the 1st auxiliary reclay KM1 is series at the 1# draining pump and shuts down in the loop of display lamp D1.The normally opened contact of the 2nd auxiliary reclay KM2 is series in the loop of 2# draining pump operation display lamp D2, and the normally-closed contact of the 2nd auxiliary reclay KM2 is series at the 2# draining pump and shuts down in the loop of display lamp D3.More than each display lamp all be connected between phase line L2 and the center line N.
As shown in Figure 4,1#, the operation of 2# draining pump, shutdown display lamp D0, D1, D2, D3; Alarm display lamp D4; 1# draining pump fault display lamp D5; Liquid level superelevation display lamp D6 and 2# draining pump fault display lamp D7 all are arranged at the panel of this control gear.Panel also is provided with manual-automatic switch QS, stop botton AN1, pump startup button AN2 and removes button AN3.
Below the working procedure of concise and to the point this control gear of narration: when manual-automatic switch QS places automatic operation position, PLC becomes the control core, by the operation of PLC, for example standby by the operation of its program setting 1# draining pump, 2# draining pump according to the actual height control motor of liquid level.When 1# draining pump fault, PLC starts the 2# draining pump immediately and puts into operation.The following PLC in limited time that is lower than setting when water level shuts down from the draining pump that the command of execution puts into operation.When taking place, overflow has light prompt.When 1#, 2# draining pump simultaneous faults take place when, acoustooptic alarm when the draining pump that puts into operation from the command of execution is shut down.
When manual-automatic switch QS places manual operation position, determine the draining pump at first put into operation according to draining pump situation of living in by the site operation personnel, acoustooptic alarm, fault demonstration, overflow light prompt etc. are identical with automatic operation position, only need the start and stop of site operation personnel's manual manipulation respective row water pump.
Claims (3)
1. based on the discharge pump control device of PLC; comprise the 1st and the 2nd three phase electric machine that drives 1# and 2# draining pump respectively; make the auxiliary reclay of three phase electric machine alternate run; control the push-button switch that starts or stops of each three phase electric machine respectively; liquid-level switch; tutorial light; alarm speaker and be arranged at the circuit breaker of the 1st and the 2nd three phase electric machine respectively; it is characterized in that: each phase connection terminal of the 1st and the 2nd three phase electric machine is respectively equipped with the bidirectional triode thyristor that is connected in electrical network; the corresponding control output end of PLC program controller is respectively equipped with the 1st and the 2nd auxiliary reclay that makes the 1st and the 2nd three phase electric machine alternate run; each normally opened contact correspondence of the described the 1st and the 2nd auxiliary reclay is series at each The Trigger of Bidirectional Triode Thyristor circuit of respective three-phase motor; the corresponding control output end of described PLC program controller also is respectively equipped with 1# and 2# draining pump simultaneous faults audible-visual annunciator and liquid level superelevation display lamp; described PLC program controller is respectively equipped with the manual selection 1# of manual-automatic switch; 2# draining pump and automatic operation control input end; pump startup fingertip control input end; low liquid level halt switch and stop botton control input end; the 1st three phase electric machine circuit breaker normally opened contact control input end; the 2nd three phase electric machine circuit breaker normally opened contact control input end; high level switch control input end and overflowing liquid bit switch control input end; wherein the 1st three phase electric machine circuit breaker normally opened contact control input end and the 2nd three phase electric machine circuit breaker normally opened contact control input end also are connected with 1# draining pump fault display lamp and 2# draining pump fault display lamp respectively, are provided with disengage button in the loop of described 1# and 2# draining pump simultaneous faults audible-visual annunciator and liquid level superelevation display lamp.
2. discharge pump control device according to claim 1 is characterized in that: described 1# and 2# draining pump simultaneous faults audible-visual annunciator, 1# and 2# draining pump fault display lamp, liquid level superelevation display lamp and manual-automatic switch are arranged at the panel of discharge pump control device.
3. discharge pump control device according to claim 2 is characterized in that: the panel of described discharge pump control device also is provided with 1#, 2# draining pump operation display lamp and shuts down display lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202133955U CN202091169U (en) | 2011-06-23 | 2011-06-23 | Dewatering pump control device based on programmable logic controller (PLC) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202133955U CN202091169U (en) | 2011-06-23 | 2011-06-23 | Dewatering pump control device based on programmable logic controller (PLC) |
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| Publication Number | Publication Date |
|---|---|
| CN202091169U true CN202091169U (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202133955U Expired - Fee Related CN202091169U (en) | 2011-06-23 | 2011-06-23 | Dewatering pump control device based on programmable logic controller (PLC) |
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| CN (1) | CN202091169U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454937A (en) * | 2013-09-03 | 2013-12-18 | 福安市中南电机电器有限公司 | Energy-saving automatic adjusting system of air compressor |
| CN104818746A (en) * | 2014-12-23 | 2015-08-05 | 淮北朔里矿业有限责任公司 | Static-pressure water supply control device |
| CN104820445A (en) * | 2015-04-07 | 2015-08-05 | 国家电网公司 | Cable trench water level monitoring alarm system |
| CN105511391A (en) * | 2015-12-28 | 2016-04-20 | 天津市福锐达电气成套设备工程有限公司 | Intelligent water pump control system based on programmable logic controller |
| CN105626497A (en) * | 2015-12-28 | 2016-06-01 | 天津市福锐达电气成套设备工程有限公司 | Water supply pump control system based on bidirectional thyristors |
| CN108869261A (en) * | 2018-09-03 | 2018-11-23 | 扬州市洁源排水有限公司 | A kind of water pump control cabinet of multi-control modes |
| CN113856306A (en) * | 2021-10-11 | 2021-12-31 | 中船澄西船舶修造有限公司 | Cargo hold bilge water control system |
-
2011
- 2011-06-23 CN CN2011202133955U patent/CN202091169U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454937A (en) * | 2013-09-03 | 2013-12-18 | 福安市中南电机电器有限公司 | Energy-saving automatic adjusting system of air compressor |
| CN104818746A (en) * | 2014-12-23 | 2015-08-05 | 淮北朔里矿业有限责任公司 | Static-pressure water supply control device |
| CN104820445A (en) * | 2015-04-07 | 2015-08-05 | 国家电网公司 | Cable trench water level monitoring alarm system |
| CN105511391A (en) * | 2015-12-28 | 2016-04-20 | 天津市福锐达电气成套设备工程有限公司 | Intelligent water pump control system based on programmable logic controller |
| CN105626497A (en) * | 2015-12-28 | 2016-06-01 | 天津市福锐达电气成套设备工程有限公司 | Water supply pump control system based on bidirectional thyristors |
| CN108869261A (en) * | 2018-09-03 | 2018-11-23 | 扬州市洁源排水有限公司 | A kind of water pump control cabinet of multi-control modes |
| CN113856306A (en) * | 2021-10-11 | 2021-12-31 | 中船澄西船舶修造有限公司 | Cargo hold bilge water control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20130623 |