CN112283089A - Four-control intelligent water pump control system - Google Patents
Four-control intelligent water pump control system Download PDFInfo
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- CN112283089A CN112283089A CN202011291281.2A CN202011291281A CN112283089A CN 112283089 A CN112283089 A CN 112283089A CN 202011291281 A CN202011291281 A CN 202011291281A CN 112283089 A CN112283089 A CN 112283089A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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Abstract
The invention discloses an intelligent water pump control system capable of controlling four pumps by one controller, which comprises a controller, a liquid level sensor, a first water pump, a second water pump, a third water pump and a fourth water pump, wherein the liquid level sensor is provided with a pump stop liquid level 0#, a first start liquid level 1#, a second start liquid level 2#, a third start liquid level 3#, and a high liquid level alarm liquid level 4 #; the liquid level sensor, the first water pump, the second water pump, the third water pump and the fourth water pump are all electrically connected with the controller; and the controller respectively controls the first water pump, the second water pump, the third water pump and the fourth water pump to work according to the received liquid level information of the liquid level sensor. The invention can control the starting number of the water pumps according to different drainage requirements according to the liquid level detected by the liquid level sensor, and the water pump set is controlled by adopting a control mode of starting at first and stopping at first, thereby effectively avoiding the phenomenon that the water pumps in the water pump set are burnt out due to overlong running time, and effectively ensuring that the water pump set can orderly and safely run.
Description
Technical Field
The invention relates to the technical field of water pump control, in particular to a four-in-one intelligent water pump control system.
Background
Water pumps are machines that deliver or pressurize a liquid. Mechanical energy or other external energy of a prime motor is transmitted to liquid, so that the energy of the liquid is increased, the liquid is mainly used for conveying the liquid including water, oil, acid-base liquid, emulsion, suspoemulsion, liquid metal and the like, the conventional water pump control system is widely applied to urban drainage engineering, and the conventional water pump control system simply controls a plurality of water pumps in a water pump set to be synchronously started and stopped in a mode of adding a controller through a liquid level sensor; the control system can not realize the orderly logic control of a plurality of water pumps in the water pump set, can not control the number of the water pumps in the water pump set to be opened according to the requirement of drainage engineering, can not intelligently control the water pumps, and ensures the safe operation of the water pump set. Therefore, the intelligent water pump control system capable of controlling four water pumps by one control is provided.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a one-control-four intelligent water pump control system.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention discloses an intelligent water pump control system capable of controlling four pumps by one controller, which comprises a controller, a liquid level sensor, a first water pump, a second water pump, a third water pump and a fourth water pump, wherein the liquid level sensor is provided with a pump stop liquid level 0#, a first start liquid level 1#, a second start liquid level 2#, a third start liquid level 3#, and a high liquid level alarm liquid level 4 #; the liquid level sensor, the first water pump, the second water pump, the third water pump and the fourth water pump are all electrically connected with the controller; the controller respectively controls the first water pump, the second water pump, the third water pump and the fourth water pump to work according to the received liquid level information of the liquid level sensor;
when the liquid level detected by the liquid level sensor is 0# when the pump is stopped, the system is in a stopped state;
when the liquid level detected by the liquid level sensor is the first starting liquid level 1#, only one of the first water pump, the second water pump, the third water pump and the fourth water pump is started;
when the liquid level detected by the liquid level sensor reaches the second starting liquid level 2#, starting the other one of the first water pump, the second water pump, the third water pump and the fourth water pump to enable the two water pumps to work simultaneously, turning off the water pump started firstly until the second starting liquid level 2# is reduced to the first starting liquid level 1#, leaving the other water pump started latest, and stopping the water pump until the water level is reduced to the pump stopping liquid level 0 #;
when the liquid level detected by the liquid level sensor reaches a third starting liquid level 3#, one of the remaining water pumps in the first water pump, the second water pump, the third water pump and the fourth water pump is started, so that the three water pumps work simultaneously, the water pump started firstly is closed until the third starting liquid level 3# is reduced to a second starting liquid level 2#, the other two water pumps started later are reserved, when the water level is reduced from the second starting liquid level 2# to the first starting liquid level 1#, the water pump started firstly in the other two water pumps is reserved, the water pump started latest is reserved, and the water pump is stopped until the water level is reduced to a pump stopping liquid level 0 #;
when the liquid level detected by the liquid level sensor reaches a high liquid level alarm liquid level 4#, an alarm sound is given, the first water pump, the second water pump, the last water pump in the remaining water pumps in the third water pump and the fourth water pump are started again, the four water pumps work simultaneously, the water pump started firstly is closed until the high liquid level alarm liquid level 4# is reduced to a third starting liquid level 3#, the other three water pumps started later are reserved, the water pump started firstly is closed in the other three water pumps, the two water pumps started latest are reserved until the water level is reduced to a first starting liquid level 1# from a second starting liquid level 2#, the water pump started firstly in the two water pumps reserved latest is closed, the water pump started last is reserved, and the water pump is stopped until the water level is reduced to a pump stopping liquid level 0 #.
As a preferred technical solution of the present invention, the system further includes a first water pump operation detection module for performing operation detection on the first water pump, where the first water pump operation detection module includes a first water pump ac contactor 1KM, a first thermal relay 1FR, and a first circuit breaker 1FQ, which are connected in series with the first water pump, two ends of the first water pump ac contactor 1KM are connected in parallel with a first water pump operation indicator lamp 1HR, the first water pump ac contactor 1KM, the first thermal relay 1FR, the first circuit breaker 1FQ, and a first water pump operation indicator lamp 1HR form a first water pump branch, the controller is electrically connected with a first water pump fault indicator lamp 1HY, and when the first water pump branch fails, the first water pump fault indicator lamp 1HY lights up for fault feedback.
As a preferred technical solution of the present invention, the system further includes a second water pump operation detection module for performing operation detection on the second water pump, the second water pump operation detection module includes a second water pump ac contactor 2KM, a second thermal relay 2FR, and a second circuit breaker 2FQ, which are connected in series with the second water pump, two ends of the second water pump ac contactor 1KM are connected in parallel with a second water pump operation indicator lamp 2HR, the second water pump ac contactor 2KM, the second thermal relay 2FR, the second circuit breaker 2FQ, and a second water pump operation indicator lamp 2HR form a second water pump branch, the controller is electrically connected with a second water pump fault indicator lamp 2HY, and when the second water pump branch fails, the first water pump fault indicator lamp 2HY lights up for fault feedback.
As a preferred technical solution of the present invention, the system further includes a third water pump operation detection module for performing operation detection on a third water pump, the third water pump operation detection module includes a third water pump ac contactor 3KM, a second thermal relay 3FR, and a second circuit breaker 3FQ, which are connected in series with the third water pump, two ends of the third water pump ac contactor 3KM are connected in parallel with a third water pump operation indicator lamp 3HR, a third water pump branch formed by the third water pump, the third water pump ac contactor 3KM, the second thermal relay 3FR, the second circuit breaker 3FQ, and the third water pump operation indicator lamp 3HR is electrically connected to a third water pump fault indicator lamp 3HY, and when the third water pump branch fails, the first water pump fault indicator lamp 3HY lights up for fault feedback.
As a preferred technical solution of the present invention, the system further includes a fourth water pump operation detection module for performing operation detection on a fourth water pump, the fourth water pump operation detection module includes a fourth water pump ac contactor 4KM, a second thermal relay 4FR, and a second circuit breaker 4FQ, which are connected in series with the fourth water pump, two ends of the fourth water pump ac contactor 4KM are connected in parallel with a fourth water pump operation indicator lamp 4HR, the fourth water pump ac contactor 4KM, the second thermal relay 4FR, the second circuit breaker 4FQ, and a fourth water pump operation indicator lamp 4HR form a fourth water pump branch, the controller is electrically connected with a fourth water pump fault indicator lamp 4HY, and when the fourth water pump branch fails, the first water pump fault indicator lamp 4HY lights up for fault feedback.
As a preferred technical scheme of the invention, when one of the first water pump, the second water pump, the third water pump and the fourth water pump breaks down in the operation process, the water pump does not participate in the work any more, and the controller automatically outputs the next pump to start.
As a preferable technical scheme of the invention, the first water pump, the second water pump, the third water pump and the fourth water pump are controlled according to a first-start-first-stop control mode in the operation process.
The invention has the beneficial effects that: the one-control-four intelligent water pump control system can automatically control a first water pump, a second water pump, a third water pump and a fourth water pump to be sequentially started and closed according to the liquid level detected by a liquid level sensor, for example, when the liquid level detected by the liquid level sensor reaches a high liquid level alarm liquid level 4#, an alarm sound is given, the last water pump in the rest water pumps in the first water pump, the second water pump, the third water pump and the fourth water pump is started again, so that the four water pumps work simultaneously, when the high liquid level alarm liquid level 4# is reduced to a third starting liquid level 3#, the first started water pump is closed, the other three water pumps which are started later are left until the water level is reduced from the third starting liquid level 3# to a second starting liquid level 2#, the first started water pumps in the other three water pumps are closed, the two water pumps which are started later are left until the water level is reduced from the second starting liquid level 2# to a first starting liquid level 1#, and (4) closing the water pump which is started first in the two water pumps which are left to be started at the latest, and leaving the water pump which is started at the last until the water level is reduced to the pump stopping liquid level 0#, and stopping the water pump. The number of the water pumps can be controlled according to different drainage requirements, the water pump set is controlled by adopting a control mode of starting and stopping firstly, the phenomenon of burnout caused by overlong running time of the water pumps in the water pump set is effectively avoided, and the safe running of the water pump set which can be ordered is effectively guaranteed. The invention also respectively detects the operation of the first water pump, the second water pump, the third water pump and the fourth water pump, thereby effectively ensuring the efficient operation of the water pump set.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a system block diagram of a four-control intelligent water pump control system according to the invention;
fig. 2 is a liquid level display diagram of the liquid level sensor 2 of the one-control-four intelligent water pump control system.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-2, the one-control-four intelligent water pump control system comprises a controller 1, a liquid level sensor 2, a first water pump 3, a second water pump 4, a third water pump 5 and a fourth water pump 6, wherein the liquid level sensor 2 is provided with a pump stop liquid level 0#, a first start liquid level 1#, a second start liquid level 2#, a third start liquid level 3# and a high liquid level alarm liquid level 4 #; the liquid level sensor 2, the first water pump 3, the second water pump 4, the third water pump 5 and the fourth water pump 6 are all electrically connected with the controller 1; the controller 1 respectively controls the first water pump 3, the second water pump 4, the third water pump 5 and the fourth water pump 6 to work according to the received liquid level information of the liquid level sensor 2; wherein, the liquid level sensor 2 is provided with liquid level parameters of a pump stop liquid level 0#, a first start liquid level 1#, a second start liquid level 2#, a third start liquid level 3# and a high liquid level alarm liquid level 4# which can be adjusted correspondingly according to the requirement.
When the liquid level detected by the liquid level sensor 2 is 0# when the pump is stopped, the system is in a stopped state;
when the liquid level detected by the liquid level sensor 2 is the first starting liquid level 1#, only one of the first water pump 3, the second water pump 4, the third water pump 5 and the fourth water pump 6 is started;
when the liquid level detected by the liquid level sensor 2 reaches the second starting liquid level 2#, starting another one of the first water pump 3, the second water pump 4, the third water pump 5 and the fourth water pump 6 to enable the two water pumps to work simultaneously, turning off the water pump started firstly until the second starting liquid level 2# is reduced to the first starting liquid level 1#, and leaving the other water pump started latest until the water level is reduced to the pump stopping liquid level 0#, and then stopping the water pump;
when the liquid level detected by the liquid level sensor 2 reaches a third starting liquid level 3#, one of the remaining water pumps in the first water pump 3, the second water pump 4, the third water pump 5 and the fourth water pump 6 is started again, so that the three water pumps work simultaneously, the water pump started firstly is closed until the third starting liquid level 3# is reduced to a second starting liquid level 2#, the other two water pumps started later are reserved, the water pump started firstly in the other two water pumps is reserved until the water level is reduced from the second starting liquid level 2# to the first starting liquid level 1#, and the water pump started latest is reserved until the water level is reduced to a pump stopping liquid level 0#, and then the water pump is stopped;
when the liquid level detected by the liquid level sensor 2 reaches a high liquid level alarm liquid level 4#, an alarm sound is given, the first water pump 3, the second water pump 4, the last water pump in the remaining water pumps in the third water pump 5 and the fourth water pump 6 are started again, the four water pumps work simultaneously, the water pump started firstly is closed until the high liquid level alarm liquid level 4# is reduced to a third starting liquid level 3#, the other three water pumps started later are reserved, the water pump started firstly is closed in the other three water pumps until the water level is reduced to a second starting liquid level 2# from the third starting liquid level 3#, the two water pumps started latest are reserved, the water pump started firstly in the two reserved latest water pumps is closed until the water level is reduced to a first starting liquid level 1# from the second starting liquid level 2#, the water pump started firstly is reserved, the water pump started last is reserved, and the water pump is stopped until the water level is reduced to a pump liquid level 0#, and then.
This system still includes the first water pump operation detection module that is used for carrying out the operation detection to first water pump 3, first water pump operation detection module includes and is first water pump ac contactor 1KM, first thermorelay 1FR and first circuit breaker 1FQ that establish ties and set up with first water pump 3, first water pump ac contactor 1 KM's both ends are parallelly connected to have first water pump operation pilot lamp 1HR, first water pump 3, first water pump ac contactor 1KM, first thermorelay 1FR, first circuit breaker 1FQ and the first water pump branch road that first water pump operation pilot lamp 1HR formed, the electricity is connected with first water pump fault pilot lamp 1HY on the controller, and when first water pump branch road broke down, first water pump fault pilot lamp 1HY lights and carries out the trouble feedback.
This system still includes the second water pump operation detection module that is used for carrying out the operation detection to second water pump 4, second water pump operation detection module includes and is second water pump ac contactor 2KM, second thermorelay 2FR and second circuit breaker 2FQ that establish ties and set up with second water pump 4, second water pump ac contactor 1 KM's both ends are parallelly connected to have second water pump operation pilot lamp 2HR, second water pump ac contactor 2KM, second thermorelay 2FR, second circuit breaker 2FQ and the second water pump operation pilot lamp 2HR formed's second water pump branch road, electricity is connected with second water pump fault pilot lamp 2HY on controller 1, and when second water pump branch road broke down, first water pump fault pilot lamp 2HY lights and carries out the trouble feedback.
This system still includes the third water pump operation detection module that is used for carrying out the operation detection to third water pump 5, third water pump operation detection module includes and is the third water pump ac contactor 3KM, second thermorelay 3FR and the 3FQ of second circuit breaker that establish ties and set up with third water pump 5, the both ends of third water pump ac contactor 3KM are parallelly connected to have third water pump operation pilot lamp 3HR, the third water pump branch road that third water pump 5, third water pump ac contactor 3KM, second thermorelay 3FR, second circuit breaker 3FQ and the 3HR of third water pump operation pilot lamp formed, electricity is connected with third water pump fault pilot lamp 3HY on controller 1, and when third water pump branch road broke down, first water pump fault pilot lamp 3HY lights and carries out the trouble feedback.
This system still includes the fourth water pump operation detection module that is used for carrying out the operation detection to fourth water pump 6, fourth water pump operation detection module includes and is fourth water pump ac contactor 4KM, second thermorelay 4FR and second circuit breaker 4FQ that establish ties and set up with fourth water pump 6, the both ends of fourth water pump ac contactor 4KM are parallelly connected to have fourth water pump operation pilot lamp 4HR, fourth water pump 6, fourth water pump ac contactor 4KM, second thermorelay 4FR, the fourth water pump branch road that second circuit breaker 4FQ and fourth water pump operation pilot lamp 4HR formed, electricity is connected with fourth water pump fault pilot lamp 4HY on controller 1, and when fourth water pump branch road broke down, first water pump fault pilot lamp 4HY lights and carries out the trouble feedback.
When one of the first water pump 3, the second water pump 4, the third water pump 5 and the fourth water pump 6 breaks down in the operation process, the water pump does not participate in the work any more, and the controller automatically outputs the next pump to start.
The first water pump 3, the second water pump 4, the third water pump 5 and the fourth water pump 6 are controlled according to a first-start-first-stop control mode in the operation process.
The invention can automatically control the first water pump 3, the second water pump 4, the third water pump 5 and the fourth water pump 6 to be opened and closed in order according to the liquid level detected by the liquid level sensor, can control the opening number of the water pumps according to different drainage requirements, and controls the water pump group by adopting a control mode of starting at first and stopping at first, thereby effectively avoiding the phenomenon of burning out of the water pumps in the water pump group due to overlong running time and effectively ensuring the water pump group to be capable of running safely in order. The invention also respectively detects the operation of the first water pump 3, the second water pump 4, the third water pump 5 and the fourth water pump 6, thereby effectively ensuring the efficient operation of the water pump set.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A one-control-four intelligent water pump control system; the method is characterized in that: the liquid level sensor (2) is provided with a pump stop liquid level 0#, a first start liquid level 1#, a second start liquid level 2#, a third start liquid level 3#, and a high liquid level alarm liquid level 4 #; the liquid level sensor (2), the first water pump (3), the second water pump (4), the third water pump (5) and the fourth water pump (6) are all electrically connected with the controller (1); the controller (1) respectively controls the first water pump (3), the second water pump (4), the third water pump (5) and the fourth water pump (6) to work according to the received liquid level information of the liquid level sensor (2);
when the liquid level detected by the liquid level sensor (2) is 0# when the pump is stopped, the system is in a stopped state;
when the liquid level detected by the liquid level sensor (2) is the first starting liquid level 1#, only one of the first water pump (3), the second water pump (4), the third water pump (5) and the fourth water pump (6) is started;
when the liquid level detected by the liquid level sensor (2) reaches the second starting liquid level 2#, starting another one of the first water pump (3), the second water pump (4), the third water pump (5) and the fourth water pump (6) to enable the two water pumps to work simultaneously, turning off the water pump started firstly until the second starting liquid level 2# is reduced to the first starting liquid level 1#, leaving the other water pump started latest, and stopping the water pump until the water level is reduced to the pump stopping liquid level 0 #;
when the liquid level detected by the liquid level sensor (2) reaches the third starting liquid level 3#, one of the remaining water pumps in the first water pump (3), the second water pump (4), the third water pump (5) and the fourth water pump (6) is started again, so that the three water pumps work simultaneously, until the third starting liquid level 3# falls to the second starting liquid level 2#, the water pump started firstly is closed, the other two water pumps started later are reserved, until the water level falls from the second starting liquid level 2# to the first starting liquid level 1#, the water pump started firstly in the other two water pumps is reserved, and the water pump started latest is stopped until the water level falls to the pump stopping liquid level 0 #;
when the liquid level detected by the liquid level sensor (2) reaches the high liquid level alarm liquid level 4#, an alarm sound is given out, and then the last water pump in the rest water pumps of the first water pump (3), the second water pump (4), the third water pump (5) and the fourth water pump (6) is started, so that the four water pumps work simultaneously until the high liquid level alarm liquid level 4# drops to the third starting liquid level 3#, the first started water pump is turned off, the other three water pumps which are started later are left until the water level is reduced from the third starting liquid level 3# to the second starting liquid level 2#, the first water pump is closed in the other three water pumps, the two water pumps which are started at the latest are remained until the water level is reduced from the second starting liquid level 2# to the first starting liquid level 1#, and (4) closing the water pump which is started first in the two water pumps which are left to be started at the latest, and leaving the water pump which is started at the last until the water level is reduced to the pump stopping liquid level 0#, and stopping the water pump.
2. The one-control-four intelligent water pump control system according to claim 1, the system also comprises a first water pump operation detection module for detecting the operation of the first water pump (3), the first water pump operation detection module comprises a first water pump alternating current contactor 1KM, a first thermal relay 1FR and a first circuit breaker 1FQ which are connected with a first water pump (3) in series, two ends of the first water pump alternating current contactor 1KM are connected with a first water pump operation indicator lamp 1HR in parallel, the first water pump (3), the first water pump alternating current contactor 1KM, the first thermal relay 1FR, the first circuit breaker 1FQ and the first water pump operation indicator lamp 1HR, the controller (1) is electrically connected with a first water pump fault indicator lamp 1HY, when the first water pump branch circuit breaks down, the first water pump fault indicating lamp 1HY lights up for fault feedback.
3. The one-control-four intelligent water pump control system according to claim 1, the system also comprises a second water pump operation detection module for detecting the operation of the second water pump (4), the second water pump operation detection module comprises a second water pump alternating current contactor 2KM, a second thermal relay 2FR and a second circuit breaker 2FQ which are connected with a second water pump (4) in series, two ends of the second water pump alternating current contactor 1KM are connected with a second water pump operation indicator lamp 2HR in parallel, the second water pump branch circuit is formed by the second water pump (4), a second water pump alternating current contactor 2KM, a second thermal relay 2FR, a second circuit breaker 2FQ and a second water pump operation indicator lamp 2HR, the controller (1) is electrically connected with a second water pump fault indicator lamp 2HY, when the second water pump branch circuit breaks down, the first water pump fault indicating lamp 2HY lights up for fault feedback.
4. The one-control-four intelligent water pump control system according to claim 1, the system also comprises a third water pump operation detection module for detecting the operation of the third water pump (5), the third water pump operation detection module comprises a third water pump alternating current contactor 3KM, a second thermal relay 3FR and a second circuit breaker 3FQ which are connected in series with a third water pump (5), both ends of the third water pump alternating current contactor 3KM are connected with a third water pump running indicator lamp 3HR in parallel, a third water pump branch formed by the third water pump (5), a third water pump alternating current contactor 3KM, a second thermal relay 3FR, a second circuit breaker 3FQ and a third water pump running indicator lamp 3HR, wherein the controller (1) is electrically connected with a third water pump fault indicator lamp 3HY, when the third water pump branch circuit breaks down, the first water pump fault indicating lamp 3HY lights up for fault feedback.
5. The one-control-four intelligent water pump control system according to claim 1, the system also comprises a fourth water pump operation detection module for detecting the operation of the fourth water pump (6), the fourth water pump operation detection module comprises a fourth water pump alternating current contactor 4KM, a second thermal relay 4FR and a second circuit breaker 4FQ which are connected in series with a fourth water pump (6), both ends of the fourth water pump alternating current contactor 4KM are connected with a fourth water pump operation indicator lamp 4HR in parallel, a fourth water pump branch formed by the fourth water pump (6), a fourth water pump alternating current contactor 4KM, a second thermal relay 4FR, a second circuit breaker 4FQ and a fourth water pump running indicator lamp 4HR, wherein the controller (1) is electrically connected with a fourth water pump fault indicator lamp 4HY, when the fourth water pump branch circuit breaks down, the first water pump fault indicating lamp 4HY lights up for fault feedback.
6. An intelligent water pump control system according to any one of claims 1-5, wherein when one of the first water pump (3), the second water pump (4), the third water pump (5) and the fourth water pump (6) fails during operation, the water pump will no longer participate in operation, and the controller automatically outputs the next pump to start.
7. An intelligent water pump control system according to claim 6, wherein the first water pump (3), the second water pump (4), the third water pump (5) and the fourth water pump (6) are controlled in a start-stop control manner during operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011291281.2A CN112283089A (en) | 2020-11-18 | 2020-11-18 | Four-control intelligent water pump control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011291281.2A CN112283089A (en) | 2020-11-18 | 2020-11-18 | Four-control intelligent water pump control system |
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| Publication Number | Publication Date |
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| CN112283089A true CN112283089A (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011291281.2A Pending CN112283089A (en) | 2020-11-18 | 2020-11-18 | Four-control intelligent water pump control system |
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| CN (1) | CN112283089A (en) |
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2020
- 2020-11-18 CN CN202011291281.2A patent/CN112283089A/en active Pending
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