CN203414746U - Constant-flow intelligent power-saving protection and control system based on six water pumps - Google Patents
Constant-flow intelligent power-saving protection and control system based on six water pumps Download PDFInfo
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- CN203414746U CN203414746U CN201320474745.2U CN201320474745U CN203414746U CN 203414746 U CN203414746 U CN 203414746U CN 201320474745 U CN201320474745 U CN 201320474745U CN 203414746 U CN203414746 U CN 203414746U
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- constant
- flow
- frequency converter
- control device
- water pumps
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Abstract
The utility model relates to a constant-flow intelligent power-saving protection and control system based on six water pumps. The system comprises six frequency converters, six motors, fiver operational water pumps and one standby water pump; and is technically characterized by also comprising a constant-flow control device, a flow sensor, a pressure sensor and an acquisition and transmission module, wherein the input end of the constant-flow control device is connected with the flow sensor and the pressure sensor which are mounted on a main water outlet pipeline, the input end of the constant-flow control device is also connected with the acquisition and transmission module, the acquisition and transmission module is connected with a three-phase ac power supply to acquire current of the ac power supply, and the output end of the constant-flow control device is connected with the six frequency converters. The constant-flow intelligent power-saving protection and control system is reasonable in design, the constant-flow control device controls the five operational water pumps and the one standby water pump to work simultaneously, the power-saving rate of a water pump system can be greatly improved, the water pump system can be protected, and safe and reliable operation of the water pump system can be ensured.
Description
Technical field
The utility model belongs to power-saving technique field, especially a kind of constant flow intelligent electricity-saving protection control system based on six water pumps.
Background technology
At motor, be with in asquare torque load (blower fan, pump class) system, conventionally by one or more process pump and a stand-by pump, formed, stand-by pump conventionally when process pump breaks down just incision system come into operation.In this system, be much with the operation of substantially invariable flow, and when operation valve wide open to guarantee its flow; If this condition cannot reach power savings by traditional constant voltage control mode, cause the waste of power resource.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of constant flow intelligent electricity-saving protection control system based on six water pumps of reasonable in design, saves energy is provided.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of constant flow intelligent electricity-saving protection control system based on six water pumps, comprise six frequency converters, six motors, five operation water pumps and a reserve pump, five described frequency converters, five motors are connected respectively successively with five operation water pumps, the 6th frequency converter, the 6th motor is connected successively with reserve pump, the output terminal of five operation water pumps and reserve pump is connected on outfall sewer road jointly, also comprise constant-flow control device, flow sensor, pressure transducer and collection transport module, the input end of this constant-flow control device is connected with pressure transducer with the flow sensor of installing on outfall sewer road respectively, the input end of this constant-flow control device is also connected with collection transport module, this collection transport module is connected with three-phase alternating-current supply for gathering the electric current of AC power, the output control terminal of this constant-flow control device is connected with six frequency converters.
And, described constant-flow control device connects and composes by controlling output unit, data processing unit, data-interface, communication module, man-machine interface, data processing unit is connected with control output unit, data-interface, man-machine interface respectively, this data-interface is connected with flow sensor, pressure transducer and communication module, this communication module is connected with collection transport module, and this control output unit is connected with six frequency converters.
And described communication module is also connected with Internet of things system and by Internet of things system, constant-flow control device is controlled.
And the first described frequency converter, the second frequency converter, the 3rd frequency converter, the 4th frequency converter, the 5th frequency converter and the 6th frequency converter are non-harmonic frequency converter or common frequency converter.
Advantage of the present utility model and good effect are:
The utility model is reasonable in design; it increases constant-current control device and is connected with five operation water pumps and a reserve pump in existing water pump system; by constant-current control device, control five operation water pumps and a reserve pump are moved simultaneously; can improve significantly the power saving rate of water pump system and can realize the defencive function to system, having guaranteed the operation safely and reliably of system.
Accompanying drawing explanation
Fig. 1 is system connection diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is further described:
A constant flow intelligent electricity-saving protection control system for six water pumps, as shown in Figure 1, comprises constant-flow control device, gather transport module, six frequency converters, six motors, five operation water pumps and a reserve pump, flow sensor Q and pressure transducer P, the first described frequency converter, the second frequency converter, the 3rd frequency converter, the 4th frequency converter, the 5th frequency converter, the 6th frequency converter is connected with three-phase alternating-current supply, the first frequency converter, the first motor, the first operation water pump is connected successively, the second frequency converter, the second motor, the second operation water pump is connected successively, the 3rd frequency converter, the 3rd motor, the 3rd operation water pump is connected successively, the 4th frequency converter, the 4th motor, the 4th operation water pump is connected successively, the 5th frequency converter, the 5th motor, the 5th operation water pump is connected successively, the 6th frequency converter, the 6th motor, reserve pump is connected successively, the output terminal of five operation water pumps and reserve pump is connected on outfall sewer road jointly, flow sensor and pressure transducer are installed on outfall sewer road for detection of the water flow on outfall sewer road and discharge pressure, described constant-flow control device is by controlling output unit, data processing unit, data-interface, communication module, man-machine interface connects and composes, wherein, data processing unit respectively with control output unit, data-interface, man-machine interface is connected, and data-interface is connected with communication module, described communication module is connected with collection transport module, this collection transport module is connected and is used for gathering three-phase supply electric current with three-phase supply, the source current that gathers transport module collection outputs to data processing unit by communication module, data-interface, this communication module is also connected with Internet of things system, by Internet of things system, realizes the monitoring function to constant-flow control device, described data-interface is also connected with pressure transducer with the flow sensor on outfall sewer road, and send the flow of collection and pressure data to data processing unit, data processing unit is according to gathering transport module, the data analysis that flow sensor and pressure transducer gather, and send control command to controlling output unit, the output control terminal mouth of described control output unit is connected with six frequency converters respectively and controls the first frequency converter, the second frequency converter, the 3rd frequency converter, the 4th frequency converter, the operation of the 5th frequency converter and the 6th frequency converter, the aquifer yield that guarantees water pump keeps constant current state.In the utility model, frequency converter can adopt non-harmonic frequency converter and common frequency converter, no matter be which kind of frequency converter, all can realize above-mentioned functions.
Control principle of the present utility model is:
If the rated power of every pump is P
n, rated flow is Q
n, rated pressure is H
n, while supposing 5 pump power frequency operations, every pump all reaches rated power (being fully loaded with):
The power consuming during 5 pump power frequency operations is: P
∑ 1=5P
n
Flow is: Q
∑ 1=5Q
n
If stand-by pump is also put into operation, and the flow of the flow while keeping the operation of 6 pump frequency conversions during with 5 pump power frequency operations is identical.: during the operation of 6 pump frequency conversions, the flow that every pump provides is 5Q
n÷ 6 ≈ 0.833Q
n; According to flow be directly proportional to frequency, cube being directly proportional of power and frequency, the frequency of operation of every frequency conversion-type electricity saver is all 50 * 0.833=41.67Hz.The factors such as open circuit loss, resistance of pipe system, efficiency of ignoring water pump, the general power consuming during 6 pump frequency conversions operations is:
P
∑2=6×0.833
3P
N≈3.47P
N
That is: when general power during 6 pump frequency conversion 41.67Hz operation is about a pump power frequency full-load run 3.47 times of power.
Power saving rate theoretical value=(5P
n-3.47P
n)/5P
n* 100%=28%.
In sum, six water pumps (operation water pump and reserve pump) are used simultaneously, and according to six water pump operations, can significantly improve the power saving rate of water pump system.
It is emphasized that; embodiment described in the utility model is illustrative; rather than determinate; therefore the utility model comprises and is not limited to the embodiment described in embodiment; every other embodiments that drawn according to the technical solution of the utility model by those skilled in the art, belong to the scope that the utility model is protected equally.
Claims (4)
1. the constant flow intelligent electricity-saving protection control system based on six water pumps, comprise six frequency converters, six motors, five operation water pumps and a reserve pump, five described frequency converters, five motors are connected respectively successively with five operation water pumps, the 6th frequency converter, the 6th motor is connected successively with reserve pump, the output terminal of five operation water pumps and reserve pump is connected on outfall sewer road jointly, it is characterized in that: also comprise constant-flow control device, flow sensor, pressure transducer and collection transport module, the input end of this constant-flow control device is connected with pressure transducer with the flow sensor of installing on outfall sewer road respectively, the input end of this constant-flow control device is also connected with collection transport module, this collection transport module is connected with three-phase alternating-current supply for gathering the electric current of AC power, the output control terminal of this constant-flow control device is connected with six frequency converters.
2. the constant flow intelligent electricity-saving protection control system based on six water pumps according to claim 1; it is characterized in that: described constant-flow control device connects and composes by controlling output unit, data processing unit, data-interface, communication module, man-machine interface; data processing unit is connected with control output unit, data-interface, man-machine interface respectively; this data-interface is connected with flow sensor, pressure transducer and communication module; this communication module is connected with collection transport module, and this control output unit is connected with six frequency converters.
3. the constant flow intelligent electricity-saving protection control system based on six water pumps according to claim 2, is characterized in that: described communication module is also connected with Internet of things system and by Internet of things system, constant-flow control device is controlled.
4. according to the constant flow intelligent electricity-saving protection control system based on six water pumps described in claims 1 to 3 any one, it is characterized in that: the first described frequency converter, the second frequency converter, the 3rd frequency converter, the 4th frequency converter, the 5th frequency converter and the 6th frequency converter are non-harmonic frequency converter or common frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474745.2U CN203414746U (en) | 2013-08-05 | 2013-08-05 | Constant-flow intelligent power-saving protection and control system based on six water pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474745.2U CN203414746U (en) | 2013-08-05 | 2013-08-05 | Constant-flow intelligent power-saving protection and control system based on six water pumps |
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| Publication Number | Publication Date |
|---|---|
| CN203414746U true CN203414746U (en) | 2014-01-29 |
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ID=49977625
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320474745.2U Expired - Fee Related CN203414746U (en) | 2013-08-05 | 2013-08-05 | Constant-flow intelligent power-saving protection and control system based on six water pumps |
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| Country | Link |
|---|---|
| CN (1) | CN203414746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000929A (en) * | 2019-04-28 | 2019-07-12 | 南京大地水刀股份有限公司 | A kind of super high power extra high voltage system |
-
2013
- 2013-08-05 CN CN201320474745.2U patent/CN203414746U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000929A (en) * | 2019-04-28 | 2019-07-12 | 南京大地水刀股份有限公司 | A kind of super high power extra high voltage system |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20190805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |