CN203412732U - Constant flow intelligent electricity-saving protection control system based on five water pumps - Google Patents
Constant flow intelligent electricity-saving protection control system based on five water pumps Download PDFInfo
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- CN203412732U CN203412732U CN201320474297.6U CN201320474297U CN203412732U CN 203412732 U CN203412732 U CN 203412732U CN 201320474297 U CN201320474297 U CN 201320474297U CN 203412732 U CN203412732 U CN 203412732U
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Abstract
The utility model relates to a constant flow intelligent electricity-saving protection control system based on five water pumps. The constant flow intelligent electricity-saving protection control system based on the five water pumps is mainly characterized by also comprising a constant flow control device, a flow sensor, a pressure sensor and an acquisition transmission module, wherein an input end of the constant flow control device is respectively connected to the flow sensor and the pressure sensor which are arranged on a water outlet main pipeline, the input end of the constant flow control device is also connected to the acquisition transmission module, the acquisition transmission module is connected to a three-phase alternating-current power supply and is used for acquiring electric currents of the alternating current power supply, and an output control end of the constant flow control device is connected to five frequency converters. The constant flow intelligent electricity-saving protection control system based on the five water pumps is reasonable in design; the constant flow control device is used for controlling the simultaneous operation of the four operating water pumps and the one standby water pump, so that the electricity-saving rate of the water pump system can be substantially increased, the function of protection on the system is realized, and the safe and reliable operation of the system is 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 five water pumps.
Background technique
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 five water pumps of reasonable in design, saving power is provided.
The utility model solves its technical problem and takes following technological scheme to realize:
A kind of constant flow intelligent electricity-saving protection control system based on five water pumps, comprise five frequency variators, five motors, four operation water pumps and a reserve pump, four described frequency variators, four motors are connected respectively successively with four operation water pumps, the 5th frequency variator, the 5th motor is connected successively with reserve pump, the output terminal of four operation water pumps and reserve pump is connected on outfall sewer road jointly, also comprise constant-flow control device, flow transducer, pressure transducer and collection transmission module, the input end of this constant-flow control device is connected with pressure transducer with the flow transducer of installing on outfall sewer road respectively, the input end of this constant-flow control device is also connected with collection transmission module, this collection transmission module is connected with three-phase alternating-current supply for gathering the electric current of ac power supply, the output control terminal of this constant-flow control device is connected with five frequency variators.
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 transducer, pressure transducer and communication module, this communication module is connected with collection transmission module, and this control output unit is connected with five frequency variators.
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 variator, the second frequency variator, the 3rd frequency variator, the 4th frequency variator and the 5th frequency variator are non-harmonic frequency converter or common frequency variator.
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 four operation water pumps and a reserve pump in existing water pump system; by constant-current control device, control four 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 protective 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 five water pumps, as shown in Figure 1, comprises constant-flow control device, gather transmission module, five frequency variators, five motors, four operation water pumps and a reserve pump, flow transducer Q and pressure transducer P, the first described frequency variator, the second frequency variator, the 3rd frequency variator, the 4th frequency variator, the 5th frequency variator is connected with three-phase alternating-current supply, the first frequency variator, the first motor, the first operation water pump is connected successively, the second frequency variator, the second motor, the second operation water pump is connected successively, the 3rd frequency variator, the 3rd motor, the 3rd operation water pump is connected successively, the 4th frequency variator, the 4th motor, the 4th operation water pump is connected successively, the 5th frequency variator, the 5th motor, reserve pump is connected successively, the output terminal of four operation water pumps and reserve pump is connected on outfall sewer road jointly, flow transducer 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 transmission module, this collection transmission module is connected and is used for gathering three phase mains electric current with three phase mains, the source current that gathers transmission 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 transducer on outfall sewer road, and send the flow of collection and pressure data to data processing unit, data processing unit is according to gathering transmission module, the data analysis that flow transducer 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 five frequency variators respectively and controls the first frequency variator, the second frequency variator, the 3rd frequency variator, the operation of the 4th frequency variator and the 5th frequency variator, the water-outlet quantity that guarantees water pump keeps constant current state.In the utility model, frequency variator can adopt non-harmonic frequency converter and common frequency variator, no matter be which kind of frequency variator, 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 4 pump power frequency operations, every pump all reaches rated power (being fully loaded with):
The power consuming during 4 pump power frequency operations is: P
∑ 1=4P
n
Flow is: Q
∑ 1=4Q
n
If stand by pump is also put into operation, and the flow of the flow while keeping the operation of 5 pump frequency conversions during with 4 pump power frequency operations is identical.: during the operation of 5 pump frequency conversions, the flow that every pump provides is 4Q
n÷ 5 ≈ 0.8Q
n; According to flow be directly proportional to frequency, cube being directly proportional of power and frequency, the frequency of okperation of every frequency conversion-type electricity saver is all 50 * 0.8=40Hz.The factors such as open circuit loss, resistance of pipe system, efficiency of ignoring water pump, the total output consuming during 5 pump frequency conversions operations is:
P
∑2=5×0.8
3P
N≈2.56P
N
That is: when total output during 5 pump frequency conversion 40Hz operation is about 1 pump power frequency full load operation 2.56 times of power.
Power saving rate theoretical value=(4P
n-2.56P
n)/4P
n* 100%=39%
In sum, five water pumps (operation water pump and reserve pump) are used simultaneously, and according to five 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 mode of executions 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 five water pumps, comprise five frequency variators, five motors, four operation water pumps and a reserve pump, four described frequency variators, four motors are connected respectively successively with four operation water pumps, the 5th frequency variator, the 5th motor is connected successively with reserve pump, the output terminal of four 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 transducer, pressure transducer and collection transmission module, the input end of this constant-flow control device is connected with pressure transducer with the flow transducer of installing on outfall sewer road respectively, the input end of this constant-flow control device is also connected with collection transmission module, this collection transmission module is connected with three-phase alternating-current supply for gathering the electric current of ac power supply, the output control terminal of this constant-flow control device is connected with five frequency variators.
2. the constant flow intelligent electricity-saving protection control system based on five 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 transducer, pressure transducer and communication module; this communication module is connected with collection transmission module, and this control output unit is connected with five frequency variators.
3. the constant flow intelligent electricity-saving protection control system based on five 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 five water pumps described in claims 1 to 3 any one, it is characterized in that: the first described frequency variator, the second frequency variator, the 3rd frequency variator, the 4th frequency variator and the 5th frequency variator are non-harmonic frequency converter or common frequency variator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474297.6U CN203412732U (en) | 2013-08-05 | 2013-08-05 | Constant flow intelligent electricity-saving protection control system based on five water pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474297.6U CN203412732U (en) | 2013-08-05 | 2013-08-05 | Constant flow intelligent electricity-saving protection control system based on five water pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203412732U true CN203412732U (en) | 2014-01-29 |
Family
ID=49975625
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320474297.6U Expired - Fee Related CN203412732U (en) | 2013-08-05 | 2013-08-05 | Constant flow intelligent electricity-saving protection control system based on five water pumps |
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|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612954A (en) * | 2015-01-26 | 2015-05-13 | 珠海格力电器股份有限公司 | Water pump control method and device |
| CN109519363A (en) * | 2018-11-29 | 2019-03-26 | 珠海市奥吉赛科技有限公司 | Integrated-type medical air compressor electric-controlled system and its electric control method |
-
2013
- 2013-08-05 CN CN201320474297.6U patent/CN203412732U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612954A (en) * | 2015-01-26 | 2015-05-13 | 珠海格力电器股份有限公司 | Water pump control method and device |
| CN104612954B (en) * | 2015-01-26 | 2016-08-24 | 珠海格力电器股份有限公司 | Water pump control method and device |
| CN109519363A (en) * | 2018-11-29 | 2019-03-26 | 珠海市奥吉赛科技有限公司 | Integrated-type medical air compressor electric-controlled system and its electric control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20190805 |