CN203560068U - Constant flow intelligent power-saving protection control system based on three water pumps - Google Patents
Constant flow intelligent power-saving protection control system based on three water pumps Download PDFInfo
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- CN203560068U CN203560068U CN201320474296.1U CN201320474296U CN203560068U CN 203560068 U CN203560068 U CN 203560068U CN 201320474296 U CN201320474296 U CN 201320474296U CN 203560068 U CN203560068 U CN 203560068U
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- constant flow
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 9
- 238000013461 design Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a constant flow intelligent power-saving protection control system based on three water pumps. The main technical characteristic is that: the constant flow intelligent power-saving protection control system comprises a constant flow control device, a flow sensor, a pressure sensor and an acquisition transmission module; an input end of the constant flow control device is connected with the flow sensor and the pressure sensor which are arranged in a main water outlet pipeline; the input end of the constant flow control device is also connected with the acquisition transmission module which is connected with a three-phrase alternating current power supply in order to be used for acquiring electric current of the alternating current power supply; and an output control end of the constant flow control device is connected with a first frequency converter, a second frequency converter and a third frequency converter. The constant flow intelligent power-saving protection control system based on the three water pumps has following beneficial effects: the constant flow intelligent power-saving protection control system is reasonable in design; two operational water pumps and a spare water pump can be operated at the same time by control of the constant flow control device; the energy-saving rate of a water pump system is significantly improved; and a protection function of the system is fulfilled so that the system is ensured to be operated safely and reliably.
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 three 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 three 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 three water pumps, comprise three frequency variators, three motors, two operation water pumps and a reserve pump, two described frequency variators, two motors are connected respectively successively with two operation water pumps, the 3rd frequency variator, the 3rd motor is connected successively with reserve pump, the output terminal of two 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 three 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 three 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 described the first frequency variator, the second frequency variator and the 3rd 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 two operation water pumps and a reserve pump in existing water pump system; by constant-current control device control, two 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 based on three water pumps, as shown in Figure 1, comprises constant-flow control device, gather transmission module, the first frequency variator, the first motor, the first operation water pump, the second frequency variator, the second motor, the second operation water pump, the 3rd frequency variator, the 3rd motor, reserve pump, flow transducer Q and pressure transducer P, the first described frequency variator, the second frequency variator, the 3rd 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, reserve pump is connected successively, the output terminal of two 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 respectively with the first frequency variator, the second frequency variator is connected with the 3rd frequency variator and controls the first frequency variator, the operation of the second frequency variator and the 3rd 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 2 pump power frequency operations, every pump all reaches rated power (being fully loaded with):
The power consuming during 2 pump power frequency operations is: P
∑ 1=2P
n
Flow is: Q
∑ 1=2Q
n
If stand by pump is also put into operation, and the flow of the flow while keeping the operation of 3 pump frequency conversions during with 2 pump power frequency operations is identical.: during the operation of 3 pump frequency conversions, the flow that every pump provides is 2Q
n÷ 3 ≈ 0.67Q
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 × 0.67=33.5Hz.Ignore the factor such as open circuit loss, resistance of pipe system, efficiency of water pump, the total output consuming during 3 pump frequency conversions operations is:
P
∑2=3×0.67
3P
N≈0.9P
N
That is: when total output during 3 pump frequency conversion 33.5Hz operation is about 1 pump power frequency full load operation 0.9 times of power.
Power saving rate theoretical value=(2P
n-0.9P
n)/2P
n× 100%=55%
In sum, two water pumps (operation water pump and reserve pump) are used simultaneously, and according to three 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 three water pumps, comprise three frequency variators, three motors, two operation water pumps and a reserve pump, two described frequency variators, two motors are connected respectively successively with two operation water pumps, the 3rd frequency variator, the 3rd motor is connected successively with reserve pump, the output terminal of two 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 three frequency variators and controls two operation water pumps and a reserve pump and move simultaneously.
2. the constant flow intelligent electricity-saving protection control system based on three 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 three frequency variators.
3. the constant flow intelligent electricity-saving protection control system based on three 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 three water pumps described in claims 1 to 3 any one, it is characterized in that: described the first frequency variator, the second frequency variator and the 3rd frequency variator are non-harmonic frequency converter or common frequency variator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474296.1U CN203560068U (en) | 2013-08-05 | 2013-08-05 | Constant flow intelligent power-saving protection control system based on three water pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474296.1U CN203560068U (en) | 2013-08-05 | 2013-08-05 | Constant flow intelligent power-saving protection control system based on three water pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560068U true CN203560068U (en) | 2014-04-23 |
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ID=50509794
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|---|---|---|---|
| CN201320474296.1U Expired - Fee Related CN203560068U (en) | 2013-08-05 | 2013-08-05 | Constant flow intelligent power-saving protection control system based on three water pumps |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405612A (en) * | 2014-11-14 | 2015-03-11 | 神华集团有限责任公司 | Boiler and feed pump system thereof |
| CN104776016A (en) * | 2015-04-01 | 2015-07-15 | 西安来克斯特节能科技有限公司 | Square torque load intelligent electricity-saving protection controller system |
| CN108361184A (en) * | 2018-02-11 | 2018-08-03 | 北京百度网讯科技有限公司 | Method and apparatus for controlling water pump |
-
2013
- 2013-08-05 CN CN201320474296.1U patent/CN203560068U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405612A (en) * | 2014-11-14 | 2015-03-11 | 神华集团有限责任公司 | Boiler and feed pump system thereof |
| CN104776016A (en) * | 2015-04-01 | 2015-07-15 | 西安来克斯特节能科技有限公司 | Square torque load intelligent electricity-saving protection controller system |
| CN108361184A (en) * | 2018-02-11 | 2018-08-03 | 北京百度网讯科技有限公司 | Method and apparatus for controlling water pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170602 Address after: Room 1, unit 6, building 65, No. two, science and technology road, Xi'an, Shaanxi, 710075 Patentee after: Shaanxi Laikesite Technology Development Co. Ltd. Address before: 710048 No. 22 East Ring Road, Shaanxi, Xi'an Patentee before: Li Qingqin |
|
| 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: 20140423 Termination date: 20170805 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Qingqin Document name: Notification of Approving Refund |