CN113586413A - Water pump control method and device, water pump station and storage medium - Google Patents
Water pump control method and device, water pump station and storage medium Download PDFInfo
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- CN113586413A CN113586413A CN202110842937.3A CN202110842937A CN113586413A CN 113586413 A CN113586413 A CN 113586413A CN 202110842937 A CN202110842937 A CN 202110842937A CN 113586413 A CN113586413 A CN 113586413A
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- water pump
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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
- F04B49/065—Control using electricity and making use of computers
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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
- F04B49/02—Stopping, starting, unloading or idling control
Abstract
The invention relates to a water pump control method, a device, a water pump station and a storage medium, wherein the water pump control method comprises the steps of detecting the current liquid level of a water collecting well and the working state of a first water pump, if the current liquid level reaches a first liquid level and the first water pump is in a stop state, judging that the first water pump has a fault at the moment, and not responding to the requirement of starting at the first liquid level, so that at least one second water pump can be controlled to be switched from a first mode to a second mode, wherein the first mode is to start drainage work when the current liquid level reaches the second liquid level, and the second mode is to start drainage work when the current liquid level reaches the first liquid level, so that the second water pump is used for carrying out the starting work of the first water pump at the first liquid level, and the cost increase caused by arranging an additional standby water pump and the occupation of the space of the water collecting well are avoided.
Description
Technical Field
The invention relates to the technical field of water pump control, in particular to a water pump control method, a water pump control device, a water pump station and a storage medium.
Background
With the continuous development of science and technology, various intelligent water pump control systems can be customized or purchased in the market. Normally, a water collecting well is formed by 2 or more water pumps to work as a main pump, an auxiliary pump and a standby pump. Each water pump realizes automatic start and stop according to the height and the height of the floating ball set by the water pump, wherein the main pump is used for starting the drainage action when the liquid level is low, the radial pump is used for starting the drainage action when the liquid level is high, and the standby pump is used as the standby water pump of the radial pump so as to perform auxiliary drainage under the condition that the radial pump fails or the drainage quantity is insufficient.
The main pump that sets up low liquid level start often appears in actual operation breaks down when the operation, consequently can set up corresponding reserve water pump for main water pump usually to switch to when main water pump trouble and carry out the drainage with the reserve water pump, however reserve water pump's increase also can bring the improvement of cost, not only increases extra control and maintenance cost, and can additionally occupy the space of sump pit.
Disclosure of Invention
In view of this, it is necessary to provide a water pump control method capable of reducing the water pump control cost.
A water pump control method, the method comprising:
detecting the current liquid level of the water collecting well;
detecting the working state of a first water pump;
and if the current liquid level reaches a first liquid level and the first water pump is in a shutdown state, controlling at least one second water pump to be switched from a first mode to a second mode, wherein the first mode is to start drainage work when the current liquid level reaches the second liquid level, and the second mode is to start drainage work when the current liquid level reaches the first liquid level.
In one embodiment, after the at least one second water pump is switched from the first mode to the second mode, the method further includes:
and controlling the second water pump to drain water at a preset drainage flow rate, wherein the preset drainage flow rate is the drainage flow rate of the first water pump under the normal working condition.
In one embodiment, the second water pump includes a plurality of second water pumps, and the controlling at least one second water pump to switch from the first mode to the second mode includes:
and controlling the plurality of second water pumps to be switched from a first mode to a second mode, and controlling the second water pumps to alternately work at a first preset time length.
In one embodiment, the method further comprises:
waiting for a second preset time period to start the first water pump and detecting the loop current of the first water pump,
if the loop current of the first water pump exceeds a current threshold, closing a power switch of the first water pump;
and if the loop current of the first water pump does not exceed the current threshold, controlling the second water pump to be switched from the second mode to the first mode.
In one embodiment, the turning on the first water pump includes:
and closing an external control switch between the first water pump and the three-phase power supply and a power supply of the first water pump.
A water pump control apparatus, the apparatus comprising:
the liquid level detection module is used for detecting the current liquid level of the water collecting well;
the state detection module is used for detecting the working state of the first water pump;
and the control module is respectively connected with the liquid level detection module and the state detection module and used for controlling at least one second water pump to be switched to a second mode from a first mode if the current liquid level reaches a first liquid level and the first water pump is in a shutdown state, wherein the first mode is that drainage work is started when the current liquid level reaches a second liquid level, and the second mode is that drainage work is started when the current liquid level reaches the first liquid level.
A water pumping station comprising:
a first water pump;
at least one second water pump;
and a water pump control device as in any of the above embodiments.
In one embodiment, the water pumping station further comprises:
the three-phase power supply is used for supplying electric energy to the first water pump and the second water pump;
the first phase sequence protection module is respectively connected with the three-phase power supply and a power switch of the first water pump, and is used for measuring the phase sequence of the three-phase power supply and disconnecting the power switch of the first water pump under the condition that the phase sequence of the three-phase power supply does not meet a preset phase sequence;
and the second phase sequence protection module is respectively connected with the three-phase power supply and a power switch of the second water pump, and is used for measuring the phase sequence of the three-phase power supply and disconnecting the power switch of the second water pump under the condition that the phase sequence of the three-phase power supply does not meet the preset phase sequence.
In one embodiment, the water pumping station further comprises:
and the external control switch is respectively connected with the three-phase power supply and the first water pump and is used for disconnecting the circuit connection between the three-phase power supply and the first water pump when the input current of the first water pump exceeds an input threshold value.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method.
The water pump control method comprises the steps of detecting the current liquid level of a water collecting well and the working state of a first water pump, judging that the first water pump breaks down if the current liquid level reaches the first liquid level and the first water pump is in a shutdown state, and not responding to the requirement of starting at the first liquid level, so that at least one second water pump can be controlled to be switched from a first mode to a second mode, wherein the first mode is to start drainage work when the current liquid level reaches the second liquid level, and the second mode is to start drainage work when the current liquid level reaches the first liquid level, so that the second water pump is used for bearing the work of starting the first water pump at the first liquid level, and the cost increase caused by the arrangement of an additional standby water pump and the occupation of the space of the water collecting well are avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart illustrating a water pump control method according to an embodiment;
FIG. 2 is a schematic diagram of a water pump control method according to another embodiment;
FIG. 3 is a schematic diagram of a water pump control method according to another embodiment;
FIG. 4 is a block diagram of a water pump control device according to an embodiment;
FIG. 5 is a schematic power connection diagram of the first and second water pumps of an embodiment;
FIG. 6 is a schematic diagram of the secondary circuit wiring of the first water pump according to an embodiment.
Element number description:
a first water pump: m1; a second water pump: m2; a liquid level detection module: 101, a first electrode and a second electrode; a state detection module: 102, and (b); a control module: 103; an external control switch: FR1
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first resistance may be referred to as a second resistance, and similarly, a second resistance may be referred to as a first resistance, without departing from the scope of the present application. The first resistance and the second resistance are both resistances, but they are not the same resistance.
It is to be understood that "connection" in the following embodiments is to be understood as "electrical connection", "communication connection", and the like if the connected circuits, modules, units, and the like have communication of electrical signals or data with each other.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.
The water pump control method of the embodiment is applied to a water pump station, wherein a water collecting well in the water pump station is provided with a first water pump M1 and at least a second water pump M2, wherein the first water pump M1 is set to start drainage work when the current liquid level reaches a first liquid level, and the second water pump M2 is set to start drainage work when the current liquid level reaches a second liquid level, wherein the first liquid level can be a low liquid level, and the second liquid level can be a high liquid level. The number of the second water pumps M2 may be multiple, including a main water pump and a standby water pump, and the standby water pump may be used to carry out drainage when the main water pump fails, or to assist the main water pump to drain together when the water collection amount is too large.
Fig. 1 is a schematic flowchart of a water pump control method according to an embodiment, and as shown in fig. 1, the water pump control method includes steps S110 to S130.
And step S110, detecting the current liquid level of the water collecting well.
Wherein, can adopt float formula level sensor to detect the current liquid level of sump pit.
In step S120, the operating state of the first water pump M1 is detected.
Specifically, the operating state of the first water pump M1 includes a startup state and a shutdown state, and in one embodiment, the operating state of the first water pump M1 may be determined by detecting a loop current of the first water pump M1, and the first water pump M1 is in the startup state if the loop current of the first water pump M1 reaches the startup current, and the first water pump M1 is in the shutdown state if the loop current is zero.
In step S130, if the current liquid level reaches the first liquid level and the first water pump M1 is in the shutdown state, the at least one second water pump M2 is controlled to switch from the first mode to the second mode, where the first mode is to start the drainage operation when the current liquid level reaches the second liquid level, and the second mode is to start the drainage operation when the current liquid level reaches the first liquid level.
It can be understood that, under normal conditions, when the current liquid level reaches the first liquid level, the first water pump M1 will enter the activated state to perform the water draining operation, and if the first water pump M1 is in the deactivated state, it indicates that the first water pump M1 is in failure, because the first water pump M1 has no standby water pump and no water pump running at low liquid level, when the external water volume is larger than the water pump displacement, the water level of the water collecting well is continuously increased, the second water pump M2 can only be started at high liquid level, therefore, the normal water level in the water collecting well is not in the designed controllable range, so that the drainage work of the first water pump M1 can be replaced by the existing second water pump M2, if the first water pump M1 is detected to be in a stop state, the existing second water pump M2 can bear the work of the first water pump M1 at the moment, at least one second water pump M2 is controlled to be switched from the first mode to the second mode, and the drainage work of the second water pump M2 is started when the current liquid level reaches the first liquid level.
The off state of the first water pump M1 may include the power switch of the first water pump M1 being off and the external control switch FR1 being off before the external power source and the first water pump M1.
The water pump control method comprises the steps of detecting the current liquid level of a water collecting well and the working state of a first water pump M1, if the current liquid level reaches a first liquid level and the first water pump M1 is in a stop state, judging that the first water pump M1 breaks down at the moment, and not responding to the requirement of starting at the first liquid level, so that at least one second water pump M2 can be controlled to be switched from a first mode to a second mode, wherein the first mode is to start drainage work when the current liquid level reaches the second liquid level, the second mode is to start drainage work when the current liquid level reaches the first liquid level, and therefore the second water pump M2 receives the work of starting the first water pump M1 at the first liquid level, and the occupation of a water collecting well space due to the fact that an additional standby water pump is arranged is avoided, and cost is increased.
In one embodiment, after the at least one second water pump M2 is switched from the first mode to the second mode, the control method further includes step S240, as shown in fig. 2.
In step S240, the second water pump M2 is controlled to discharge water at a preset discharge flow rate, where the preset discharge flow rate is the discharge flow rate of the first water pump M1 under normal operating conditions.
It is to be appreciated that, after controlling the second water pump M2 to switch from the first mode to the second mode in place of the first water pump M1 being activated at the first liquid level, the water discharge flow rate of the second water pump M2 when operating may be the water discharge flow rate of the first water pump M1 when operating normally to replicate the operating condition of the first water pump M1. In one embodiment, the preset water discharge flow rate can be set arbitrarily.
In one embodiment, the second water pump M2 may include a plurality of pumps, and controlling the at least one second water pump M2 to switch from the first mode to the second mode includes: the plurality of second water pumps M2 are controlled to be switched from the first mode to the second mode, and each second water pump M2 is controlled to alternately work for a first preset time length.
It is understood that the number of the second water pumps M2 may be multiple, and the second water pumps include a main water pump and at least one spare water pump, and the spare water pump may be used to take over the operation of the main water pump to drain when the main water pump fails, or assist the main water pump to drain together when the water collection amount is too large. When the first water pump M1 fails, the multiple second water pumps M2 can be controlled to operate in the second mode and alternately operate for a first preset time, so that the workload of each second water pump M2 is reduced, and the service life of a single second water pump M2 is prevented from being reduced due to overlong continuous operation time. The first preset time period may be set manually, for example, according to the historical heat generation condition of the second water pump M2.
In one embodiment, the control method further includes steps S340 to S360, as shown in fig. 3.
In step S340, the first water pump M1 is turned on for a second preset time period and the loop current of the first water pump M1 is detected.
It is understood that the failure cause of the first water pump M1 may include the water collecting well liquid level being below the first liquid level for a long time, so that a situation that the first water pump M1 is not started for a long time to cause temporary jamming between internal mechanical devices may occur, and the situation sometimes does not need to be maintained, and can be recovered to be normal after being forcibly started for a plurality of times. Therefore, in the case where the first water pump M1 is detected to be stopped, the first water pump M1 may be turned on every second preset time period and the loop current of the first water pump M1 may be detected to inspect the first water pump M1 while the second water pump M2 is controlled to operate in the second mode. In this case, the first water pump M1 is turned on, that is, current flows through the first water pump M1.
In step S350, if the loop current of the first water pump M1 exceeds the current threshold, the power switch of the first water pump M1 is turned off.
It is to be understood that the current threshold may be the maximum current of the first water pump M1 when it is working normally, and if the loop current of the first water pump M1 when it is working exceeds the current threshold, it can be determined that the mechanical device in the first water pump M1 is still stuck, and at this time, to ensure the safety of the circuit, the power switch of the first water pump M1 can be turned off.
In step S360, if the loop current of the first water pump M1 does not exceed the current threshold, the second water pump M2 is controlled to switch from the second mode to the first mode.
It is understood that if the loop current of the first water pump M1 does not exceed the current threshold, it may be determined that the first water pump M1 is recovered to be normal, and then the second water pump M2 may be recovered to operate in the first mode, and the first water pump M1 may continue to operate in the second mode. Therefore, the first water pump M1 is put into use again after being recovered to be normal, the original working mode of the second water pump M2 is recovered, and the normal drainage control of the first liquid level and the second liquid level is realized.
In one embodiment, turning on the first water pump M1 includes closing the first water pump M1 and an external control switch FR1 of the three-phase power supply and a power switch of the first water pump M1.
Specifically, an external control switch FR1 is arranged between the first water pump M1 and the power supply and used for controlling the supply of electric energy to the first water pump M1, and a power switch is arranged inside the first water pump M1 and used for controlling the start-stop state of the first water pump M1. Turning on the first water pump M1 includes simultaneously closing the external control switch FR1 and a power switch of the first water pump M1 to circulate electric current inside the first water pump M1.
The embodiment of the invention also provides a water pump control device, as shown in fig. 4, the device comprises a liquid level detection module 101, a state detection module 102 and a control module 103, wherein the liquid level detection module 101 is used for detecting the current liquid level of the water collecting well; the state detection module 102 is configured to detect an operating state of the first water pump M1; the control module 103 is connected to the liquid level detection module 101 and the state detection module 102, respectively, and is configured to control the at least one second water pump M2 to switch from a first mode to a second mode if the current liquid level reaches a first liquid level and the first water pump M1 is in a shutdown state, where the first mode is to start the drainage operation when the current liquid level reaches the second liquid level, and the second mode is to start the drainage operation when the current liquid level reaches the first liquid level.
Specifically, the liquid level detection module 101 may be a float-type liquid level sensor, and the state detection module 102 may be a current sensor, which detects the loop current of the first water pump M1 to reflect the operating state of the first water pump M1. The operating state of the first water pump M1 includes a start state and a stop state, and if the loop current of the first water pump M1 reaches the start current, the first water pump M1 is in the start state, and if the loop current is zero, the first water pump M1 is in the stop state. The control module 103 is also connected to the second water pump M2 for controlling the second water pump M2 to switch between the first mode and the second mode.
In one embodiment, the control module 103 is further configured to control the second water pump M2 to discharge water at a preset discharge flow rate, wherein the preset discharge flow rate is the discharge flow rate of the first water pump M1 under normal operating conditions.
It is to be appreciated that, after controlling the second water pump M2 to switch from the first mode to the second mode in place of the first water pump M1 being activated at the first liquid level, the water discharge flow rate of the second water pump M2 when operating may be the water discharge flow rate of the first water pump M1 when operating normally to replicate the operating condition of the first water pump M1. In one embodiment, the preset water discharge flow rate can be set arbitrarily.
In one embodiment, the second water pump M2 may include a plurality of second water pumps M2, and the control module 103 is further configured to control the plurality of second water pumps M3526 to switch from the first mode to the second mode and to control each of the second water pumps M2 to operate alternately for a first predetermined period.
It is understood that the number of the second water pumps M2 may be plural, including a main water pump and at least one spare water pump. When the first water pump M1 fails, the multiple second water pumps M2 can be controlled to operate in the second mode and alternately operate for a first preset time, so that the workload of each second water pump M2 is reduced, and the service life of a single second water pump M2 is prevented from being reduced due to overlong continuous operation time. The first preset time period may be set manually, for example, according to the historical heat generation condition of the second water pump M2.
In one embodiment, the control module 103 is further configured to wait for a second predetermined period of time to turn on the first water pump M1 and control the state detection module 102 to detect the loop current of the first water pump M1, and if the loop current of the first water pump M1 exceeds the current threshold, the control module 103 turns off the power switch of the first water pump M1; if the loop current of the first water pump M1 does not exceed the current threshold, the control module 103 controls the second water pump M2 to switch from the second mode to the first mode.
It is understood that the failure cause of the first water pump M1 may include the water collecting well liquid level being below the first liquid level for a long time, so that a situation that the first water pump M1 is not started for a long time to cause temporary jamming between internal mechanical devices may occur, and the situation sometimes does not need to be maintained, and can be recovered to be normal after being forcibly started for a plurality of times. Therefore, the control module 103 is further connected to the first water pump M1, and when detecting that the first water pump M1 is stopped, the control module 103 may control the second water pump M2 to operate in the second mode, and simultaneously turn on the first water pump M1 every second preset time, and control the state detection module 102 to detect the loop current of the first water pump M1, so as to inspect the first water pump M1. In this case, the first water pump M1 is turned on, that is, current flows through the first water pump M1.
Specifically, the current threshold may be the maximum current when the first water pump M1 normally operates, and if the loop current when the first water pump M1 operates exceeds the current threshold, it may be determined that a mechanical device in the first water pump M1 is still in a stuck state, and at this time, to ensure circuit safety, the power switch of the first water pump M1 may be turned off; if the loop current of the first water pump M1 does not exceed the current threshold, it may be determined that the first water pump M1 is recovered to normal, and at this time, the second water pump M2 may be recovered to operate in the first mode, and the first water pump M1 may continue to operate in the second mode. Therefore, the first water pump M1 is put into use again after being recovered to be normal, the original working mode of the second water pump M2 is recovered, and the normal drainage control of the first liquid level and the second liquid level is realized.
In one embodiment, the control module 103 is also used to close an external control switch FR1 between the first water pump M1 and the three-phase power supply and a power switch of the first water pump M1.
Specifically, an external control switch FR1 is arranged between the first water pump M1 and the power supply and used for controlling the supply of electric energy to the first water pump M1, and a power switch is arranged inside the first water pump M1 and used for controlling the start-stop state of the first water pump M1. Turning on the first water pump M1 includes simultaneously closing the external control switch FR1 and a power switch of the first water pump M1 to circulate electric current inside the first water pump M1.
An embodiment of the present invention further provides a water pump station, including: a first water pump M1, at least one second water pump M2 and the water pump control device of any of the above embodiments.
In one embodiment, the water pumping station further comprises a three-phase power supply, a first phase sequence protection module and a second phase sequence protection module, wherein the three-phase power supply is used for supplying electric energy to the first water pump M1 and the second water pump M2; the first phase sequence protection module is respectively connected with the three-phase power supply and a power switch of the first water pump M1, and is used for measuring the phase sequence of the three-phase power supply and disconnecting the power switch of the first water pump M1 under the condition that the phase sequence of the three-phase power supply does not meet the preset phase sequence; the second phase sequence protection module is respectively connected with the three-phase power supply and a power switch of the second water pump M2, and is used for measuring the phase sequence of the three-phase power supply and disconnecting the power switch of the second water pump M2 under the condition that the phase sequence of the three-phase power supply does not meet the preset phase sequence.
Specifically, a three-phase power supply outputs electric energy through live wires L1, L2 and L3, and a schematic circuit diagram of a connection circuit between the three-phase power supply and the first water pump M1 and the second water pump M2 is shown in fig. 5, wherein the rated power of the first water pump M1 and the rated power of the second water pump M2 are 4kW, the output end of the three-phase power supply may be provided with a switch QF1, and the switch QF1 may be an air relay and used for current overload protection; the input ends of the first water pump M1 and the second water pump M2 can also be respectively provided with a switch, such as a switch 1QF and a switch 2QF in the figure, wherein the switch 1QF and the switch 2QF can be air relays and are used for current overload protection; the input ends of the first water pump M1 and the second water pump M2 can also be provided with contactors respectively for being controlled by an external control circuit, such as a contactor KM1 and a contactor KM2 in the figure. In one embodiment, the water pumping station further comprises an external control switch FR1, the external control switch FR1 being connected to the three-phase power supply and the first water pump M1, respectively, for disconnecting the electrical circuit between the three-phase power supply and the first water pump M1 in case the input current of the first water pump M1 exceeds an input threshold. Wherein the external control switch FR1 may be a thermal relay. Correspondingly, a thermal relay FR2 may be provided between each second water pump M2 and the three-phase power supply.
In addition, the first phase sequence protection module and the second phase sequence protection module have the same structure, taking the first water pump M1 as an example, the secondary control circuit of the first water pump is shown in fig. 6, the first phase sequence protection module can be a phase sequence protection relay with the model of XJ3-G, wherein the connecting line N is a zero line, the phase sequence protection relay is respectively connected with live lines L1, L2 and L3, when the phase sequence of the three-phase power supply reaches a preset phase sequence, a normally open contact K1 of the three-phase power supply is closed, at the time, a relay KM4 is switched on, the normally open contact of the relay is closed, electric energy provided by the three-phase power supply is filtered by a filter 300, the electric energy is rectified by a switching power supply 400 to output a stable 24V voltage, and finally the electric energy is transmitted to a power switch of the first water pump M1. In addition, the input of the filter 300 may be further provided with an air circuit breaker 4 QF.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method according to any of the above embodiments.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A water pump control method, the method comprising:
detecting the current liquid level of the water collecting well;
detecting the working state of a first water pump;
and if the current liquid level reaches a first liquid level and the first water pump is in a shutdown state, controlling at least one second water pump to be switched from a first mode to a second mode, wherein the first mode is to start drainage work when the current liquid level reaches the second liquid level, and the second mode is to start drainage work when the current liquid level reaches the first liquid level.
2. The method of claim 1, wherein after switching the at least one second water pump from the first mode to the second mode, the method further comprises:
and controlling the second water pump to drain water at a preset drainage flow rate, wherein the preset drainage flow rate is the drainage flow rate of the first water pump under the normal working condition.
3. The water pump control method according to claim 1, wherein the second water pump includes a plurality of second water pumps, and the controlling of the at least one second water pump from the first mode to the second mode includes:
and controlling the plurality of second water pumps to be switched from a first mode to a second mode, and controlling the second water pumps to alternately work at a first preset time length.
4. The water pump control method of claim 1, further comprising:
waiting for a second preset time period to start the first water pump and detecting the loop current of the first water pump,
if the loop current of the first water pump exceeds a current threshold, closing a power switch of the first water pump;
and if the loop current of the first water pump does not exceed the current threshold, controlling the second water pump to be switched from the second mode to the first mode.
5. The water pump control method according to claim 4, wherein the turning on the first water pump includes:
and closing an external control switch between the first water pump and the three-phase power supply and a power supply of the first water pump.
6. A water pump control apparatus, the apparatus comprising:
the liquid level detection module is used for detecting the current liquid level of the water collecting well;
the state detection module is used for detecting the working state of the first water pump;
and the control module is respectively connected with the liquid level detection module and the state detection module and used for controlling at least one second water pump to be switched to a second mode from a first mode if the current liquid level reaches a first liquid level and the first water pump is in a shutdown state, wherein the first mode is that drainage work is started when the current liquid level reaches a second liquid level, and the second mode is that drainage work is started when the current liquid level reaches the first liquid level.
7. A water pumping station, comprising:
a first water pump;
at least one second water pump;
and a water pump control apparatus as claimed in claim 6.
8. The water pump station according to claim 7, further comprising:
the three-phase power supply is used for supplying electric energy to the first water pump and the second water pump;
the first phase sequence protection module is respectively connected with the three-phase power supply and a power switch of the first water pump, and is used for measuring the phase sequence of the three-phase power supply and disconnecting the power switch of the first water pump under the condition that the phase sequence of the three-phase power supply does not meet a preset phase sequence;
and the second phase sequence protection module is respectively connected with the three-phase power supply and a power switch of the second water pump, and is used for measuring the phase sequence of the three-phase power supply and disconnecting the power switch of the second water pump under the condition that the phase sequence of the three-phase power supply does not meet the preset phase sequence.
9. The water pump station according to claim 8, further comprising:
and the external control switch is respectively connected with the three-phase power supply and the first water pump and is used for disconnecting the circuit connection between the three-phase power supply and the first water pump when the input current of the first water pump exceeds an input threshold value.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110842937.3A CN113586413A (en) | 2021-07-26 | 2021-07-26 | Water pump control method and device, water pump station and storage medium |
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| CN202110842937.3A CN113586413A (en) | 2021-07-26 | 2021-07-26 | Water pump control method and device, water pump station and storage medium |
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| CN113586413A true CN113586413A (en) | 2021-11-02 |
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