CN103711180A - Double-frequency-converter voltage stabilizing energy-saving water supply control system - Google Patents
Double-frequency-converter voltage stabilizing energy-saving water supply control system Download PDFInfo
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- CN103711180A CN103711180A CN201210399103.0A CN201210399103A CN103711180A CN 103711180 A CN103711180 A CN 103711180A CN 201210399103 A CN201210399103 A CN 201210399103A CN 103711180 A CN103711180 A CN 103711180A
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- frequency converter
- water supply
- frequency
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- water pump
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Abstract
The invention provides a double-frequency-converter voltage stabilizing energy-saving water supply control system which comprises a PLC (programmable logic controller), a first frequency converter, a second frequency converter, a first water pump, a second water pump, a water outlet main pipe, a water supply pipeline, a pressure transmitter and a wire. The PLC is connected with the first frequency converter through the wire. The first frequency converter is connected with the first water pump through the wire. The first water pump is connected with the water supply main pipe through the water supply pipeline. The PLC is connected with the second frequency converter through the wire. The second frequency converter is connected with the second water pump through the wire. The second water pump is connected with the water outlet main pipe through the water supply pipeline. The PLC is connected with the pressure transmitter through the wire. The pressure transmitter is connected with the water outlet main pipe through water supply pipeline. The invention has the advantages that the feedback value of the pressure transmitter is collected through the PLC so as to analyze whether to start one frequency converter or two frequency converter for frequency adjustment, and constant-pressure water supply and electric energy saving are achieved.
Description
1, technical field
The present invention relates to a kind of control system, specifically a kind of pair of frequency conversion voltage-stabilizing and energy-saving water management system.
2, background technology
The frequency-changing water supply device great majority that use on present society adopt the way of supplying water of separate unit frequency converter dragging multiple water pump, it is exactly easily to produce pressure oscillation that this type of supply equipment exists a large weakness, variable frequency adjustment hysteresis quality is larger, for pressure, require highly stable place just can not meet user's water supply requirement, and the upper normal two frequency-changing water supply devices that adopt of society adopt two modes that frequency converter starts more simultaneously, exist frequency converter efficiency low, the scene wasting energy.
3, summary of the invention
Deficiency in view of above-mentioned prior art exists, the invention provides a kind of pair of frequency conversion voltage-stabilizing and energy-saving water management system, effectively the object of stable water supply pressure while energy conservation.
The technical solution adopted for the present invention to solve the technical problems is: a kind of pair of frequency conversion voltage-stabilizing and energy-saving water management system is by PLC controller, 1# frequency converter, 2# frequency converter, 1# water pump, 2# water pump, outfall sewer, water supply line, pressure transmitter, wire forms, PLC controller is connected with 1# frequency converter by wire, 1# frequency converter is connected with 1# water pump by wire, 1# water pump is connected with outfall sewer by water supply line, PLC controller is connected with 2# frequency converter by wire, 2# frequency converter is connected with 2# water pump by wire, 2# water pump is connected with outfall sewer by water supply line, PLC controller is connected with pressure transmitter by wire, pressure transmitter is connected with outfall sewer by water supply line.
The invention has the beneficial effects as follows, gather the value of feedback of pressure transmitter by PLC controller, analysis judgement starts 1 frequency converter or 2 frequency converters carry out frequency adjustment, the object that reaches constant pressure water supply and save electric energy.
4, accompanying drawing explanation
Accompanying drawing 1 is principle assumption diagram of the present invention.
In figure, 1, PLC controller, 2,1# frequency converter, 3,1# water pump, 4,2# frequency converter, 5,2# water pump, 6, outfall sewer, 7, pressure transmitter, 8, wire, 9, water supply line.
5, the specific embodiment
With regard to 1 pair of a kind of pair of frequency conversion voltage-stabilizing and energy-saving water management system of the present invention of accompanying drawing, do following detailed explanation below.
As shown in Figure 1, a kind of pair of frequency conversion voltage-stabilizing and energy-saving water management system of the present invention is by PLC controller (1), 1# frequency converter (2), 1# water pump (3), 2# frequency converter (4), 2# water pump (5), outfall sewer (6), pressure transmitter (7), wire (8), water supply line (9) forms, PLC controller (1) is connected with 1# frequency converter (2) by wire (8), 1# frequency converter (2) is connected with 1# water pump (3) by wire (8), 1# water pump (3) is connected with outfall sewer (6) by water supply line (9), PLC controller (1) is connected with 2# frequency converter (4) by wire (8), 2# frequency converter (4) is connected with 2# water pump (5) by wire (8), 2# water pump (5) is connected with outfall sewer (6) by water supply line (9), outfall sewer (6) is connected with pressure transmitter (7) by water supply line (9), pressure transmitter (7) is connected with PLC controller (1) by wire (8).
During equipment operation, PLC controller (1) first gathers the pressure data of pressure transmitter (7), compare with the setting pressure of itself, and according to the frequency numerical value of current frequency converter, judge and start 1 frequency converter or 2 frequency converters carry out frequency adjustment, when start 2 frequency converters frequency that regulating frequencies make discharge pressure be stabilized in for a long time setting pressure and 2 frequency converters simultaneously, be all stabilized in 30Hz when above, illustrate that user's water supply volume is larger, now use 2 frequency converters to move simultaneously, if the frequency of 2 frequency converters is during for a long time lower than 30Hz, illustrate that user's water supply volume reduces, a frequency converter of now PLC controller control quits work, use 1 frequency converter regulating frequency.The in the situation that of 1 frequency converter work, if frequency converter frequency reaches 50Hz, still can not meet user and supply water, PLC controller control appliance starts 2 frequency converters and carries out frequency adjustment simultaneously, to meet user's water.
Claims (1)
1. two frequency conversion voltage-stabilizing and energy-saving water management systems are by PLC controller, 1# frequency converter, 2# frequency converter, 1# water pump, 2# water pump, outfall sewer, water supply line, pressure transmitter, wire forms, PLC controller is connected with 1# frequency converter by wire, 1# frequency converter is connected with 1# water pump by wire, 1# water pump is connected with outfall sewer by water supply line, PLC controller is connected with 2# frequency converter by wire, 2# frequency converter is connected with 2# water pump by wire, 2# water pump is connected with outfall sewer by water supply line, PLC controller is connected with pressure transmitter by wire, pressure transmitter is connected with outfall sewer by water supply line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210399103.0A CN103711180A (en) | 2012-10-09 | 2012-10-09 | Double-frequency-converter voltage stabilizing energy-saving water supply control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210399103.0A CN103711180A (en) | 2012-10-09 | 2012-10-09 | Double-frequency-converter voltage stabilizing energy-saving water supply control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103711180A true CN103711180A (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210399103.0A Pending CN103711180A (en) | 2012-10-09 | 2012-10-09 | Double-frequency-converter voltage stabilizing energy-saving water supply control system |
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| CN (1) | CN103711180A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452896A (en) * | 2014-11-11 | 2015-03-25 | 宁夏嘉翔自控技术有限公司 | Device for controlling water well water pump of tap water supply system through central PLC |
-
2012
- 2012-10-09 CN CN201210399103.0A patent/CN103711180A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452896A (en) * | 2014-11-11 | 2015-03-25 | 宁夏嘉翔自控技术有限公司 | Device for controlling water well water pump of tap water supply system through central PLC |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140409 |