A method for automatically adjusting the number of working pumps in a pump station and related products

Abstract

The present application relates to a kind of method and related products for automatically adjusting the number of working pump in pump station, the method includes obtaining the loading efficiency of pump station in set time, the loading efficiency includes the loading time proportion of unloading valve and / or the loading efficiency of the drive motor of working pump;The loading efficiency of pump station is compared with the threshold range set, to determine whether the loading efficiency of pump station is within the threshold range set;And in response to the loading efficiency of pump station is not within the threshold range set, adjust the number of working pump in the pump station.By the scheme of the present application, the current pump station based on the mode of action data in working face to realize the number of pump adjustment is solved Method complex, platform dependency is big and the problem of poor control stability.

Description

A method and related products for automatically adjusting the number of working pumps in a pumping station Technical Field

[0001] This invention generally relates to the field of automation control. More specifically, this invention relates to a method and related products for automatically adjusting the number of operating pumps in a pumping station. Background Technology

[0002] Coal is a fundamental energy source and an important raw material for various industries in my country. In recent years, with the rapid development of the national economy, coal product prices have increased rapidly, and the demand for coal has also increased year by year. Ensuring the reliability, safety, energy conservation, and consumption reduction of coal mining equipment is a crucial aspect of ensuring the sustainable development of the coal industry. Currently, emulsion pump stations are used in coal production to supply emulsion to the working face, and spray pump stations are used for dust suppression at the coal mining face and other locations. The demand for emulsion and spray at the coal mining face is determined by the mining speed and the frequency of support operation. Therefore, in order to improve production efficiency while achieving energy conservation and consumption reduction, the number of working pumps needs to be adjusted in real time during actual production.

[0003] The traditional method for adjusting the number of working pumps in a pumping station is based on motion data provided by the working face support system. Liquid demand is calculated by analyzing the frequency of coal mining operations within the support system, and then the number of working pumps in the pumping station is adjusted accordingly. This process is cumbersome and relies on a monitoring platform corresponding to the working face support system to obtain motion data. It is not conducive to deployment in the site, and the stability of the working pump quantity control process is poor.

[0004] Therefore, the current method of adjusting the number of pumps based on motion data in the working face in pumping stations has problems such as complexity, high platform dependence, and poor control stability. Summary of the Invention

[0005] To address one or more of the aforementioned technical problems, this invention proposes a method to dynamically adjust the number of working pumps by combining the loading time ratio of the unloading valve of the pump station and / or the loading efficiency of the drive motor of the working pump, and comparing it with a set threshold range. This effectively simplifies the complexity of the method for adjusting the number of working pumps, and the control process does not require acquiring working face motion data, making the setup simple and ensuring the stability and rapid deployment of the control process. Therefore, this invention provides solutions in the following aspects.

[0006] In a first aspect, the present invention provides a method for automatically adjusting the number of working pumps in a pumping station, comprising: acquiring the loading efficiency of the pumping station over a set time period, the loading efficiency including the loading time percentage of an unloading valve and / or the loading efficiency of the drive motor of the working pump; comparing the loading efficiency of the pumping station with a set threshold range to determine whether the loading efficiency of the pumping station is within the set threshold range; and adjusting the number of working pumps in the pumping station in response to the loading efficiency of the pumping station not being within the set threshold range.

[0007] In one embodiment, obtaining the loading efficiency of the pump station within a set time period includes: calculating the opening time of the unloading valve when supplying liquid to the working face within the set time period; and calculating the ratio of the opening time to the set time to obtain the loading time percentage of the unloading valve.

[0008] In one embodiment, obtaining the loading efficiency of the pump station within a set time period includes: obtaining the torque of the drive motor of the working pump during operation; calculating the running time when the torque is greater than a torque threshold within the set time period; and calculating the ratio of the running time to the set time to obtain the loading efficiency of the drive motor of the working pump.

[0009] In one embodiment, adjusting the number of working pumps in the pumping station includes: increasing the number of working pumps in the pumping station when the loading efficiency of the pumping station is higher than the upper limit of the threshold range; or decreasing the number of working pumps in the pumping station when the loading efficiency of the pumping station is lower than the lower limit of the threshold range.

[0010] In one embodiment, the pumping station includes normally open working pumps, and adjusting the number of working pumps in the pumping station includes: responding to the pumping station's loading efficiency being lower than the lower limit of the threshold range, and all working pumps currently operating in the pumping station being static pumps, without changing the number of working pumps currently operating in the pumping station.

[0011] In one embodiment, adjusting the number of working pumps in the pumping station further includes: controlling one or more working pumps to turn on or off each time the number of working pumps in the pumping station is adjusted.

[0012] In one embodiment, adjusting the number of working pumps in the pumping station further includes controlling the working pumps to turn on or off according to their priority order.

[0013] In one embodiment, controlling the working pumps to start or stop according to priority order includes: acquiring the operating status of the working pumps in the pumping station to determine whether the working pumps are malfunctioning; and in response to the malfunction of the working pumps, controlling the malfunctioning working pumps to stop and adjusting the priority order of the working pumps.

[0014] In a second aspect, the present invention also provides an apparatus for automatically adjusting the number of working pumps in a pumping station, comprising: a processor; and a memory for storing computer-executable instructions that, when executed by the processor, implement the method according to the various embodiments of the first aspect described above.

[0015] In a third aspect, the present invention also provides a computer-readable storage medium storing program instructions for automatically adjusting the number of working pumps in a pumping station, wherein when the program instructions are executed by a processor, the method described according to the aforementioned embodiments of the first aspect is implemented.

[0016] The solution of this invention allows for the adjustment of the number of working pumps in a pumping station by comparing its loading efficiency with a set threshold range. This enables the direct acquisition of the working surface's fluid demand based on the unloading valves and drive motors within the pumping station, maximizing pumping station efficiency. This method for adjusting the number of working pumps is simple, reliable, and allows for rapid and accurate deployment. Furthermore, this solution only requires information on the operating status of the unloading valves and / or drive motors; the process relies solely on the pumping station's own system, is simple to set up, and is easy to deploy within the pumping station. In addition, this solution monitors the operating status of the working pumps in the pumping station to promptly update their priorities in case of anomalies, ensuring reliable operation of the working pumps and improving the efficiency and accuracy of adjusting the number of working pumps. Attached Figure Description

[0017] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0018] Figure 1 is a schematic diagram illustrating a scenario for automatically adjusting the number of working pumps in a pumping station according to an embodiment of the present invention;

[0019] Figure 2 is a schematic diagram illustrating a method for automatically adjusting the number of working pumps in a pumping station according to an embodiment of the present invention;

[0020] Figure 3 is a schematic diagram illustrating another method for automatically adjusting the number of working pumps in a pumping station according to an embodiment of the present invention;

[0021] Figure 4 is a schematic diagram illustrating a specific method for increasing or decreasing the number of working pumps according to an embodiment of the present invention;

[0022] Figure 5 is a schematic diagram illustrating a device for automatically adjusting the number of working pumps in a pumping station according to an embodiment of the present invention;

[0023] In Figure 1, 101 is the emulsion tank (clean water tank); 102 is the pump set; 103 is the working pump; 104 is the unloading valve; 105 is the drive motor; 106 is the liquid inlet pipe; 107 is the high pressure pipe; 108 is the liquid return pipe; and 109 is the pressure sensor. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be understood that the terms "first," "second," "third," and "fourth," etc., in the claims, specification, and drawings of this invention are used to distinguish different objects, rather than to describe a specific order. The terms "comprising" and "including" used in the specification and claims of this invention indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.

[0026] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this specification and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0027] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0028] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0029] Figure 1 is a schematic diagram illustrating a scenario 100 for automatically adjusting the number of working pumps in a pumping station according to an embodiment of the present invention. In the context of the present invention, the aforementioned scenario can be applied to automatically adjusting the number of emulsion pumps in a pumping station, or it can be used to automatically adjust the number of spray pumps in a pumping station. In this embodiment, the scenario is shown as the adjustment of the number of emulsion pumps for illustrative purposes only.

[0030] As shown in Figure 1, mining emulsion pump stations often employ a multi-pump parallel connection to supply emulsion to the working face. Each working pump 103 in pump station 102 is powered by a drive motor 105, which delivers the emulsion from the emulsion tank 101 to each working pump via the inlet pipe 106 for pressurization; for example, the working pump could be a plunger pump. An unloading valve 104 controls the flow direction of the emulsion. When the pressure sensor 109 detects that the pressure in the high-pressure pipeline 107 supplying the emulsion to the working face is lower than the target value, the unloading valve can be opened (or activated), allowing the emulsion to flow into the high-pressure pipeline to supply the coal face. When the pressure in the high-pressure pipeline supplying the emulsion to the working face is higher than the target value, the unloading valve closes, and the emulsion returns to the emulsion tank via the return pipe 108.

[0031] In one application scenario, when using the automatic switching function of the pump station (i.e., the function of automatically adjusting the number of working pumps), the working mode can be switched to "automatic" mode. The working modes of the spray pump station and the emulsification pump station are independent of each other. For illustrative purposes, this example only illustrates the adjustment of the number of working pumps in the emulsification pump station. The spray pump station and the emulsification pump station are started in "automatic" mode as follows: Start the first working pump of this pump station. That is, to start the emulsification pump, only start the "M1" emulsification pump; to start the spray pump, only start the "M1" spray pump. The specific operation for starting the first pump "M1" depends on the control method. If the control method is "local", the operation to start the emulsification pump group is "confirm" + "1". If the control method is "remote", the operation to start the emulsification pump group is to set the remote control word for starting emulsification pump "M1" to 1. If the control method is "substation", the operation to start the emulsification pump is performed at the substation of emulsification pump "M1". In operation, the parameters related to the automatic switching function of the pump station can be divided into two groups: one group is used to set the automatic switching function parameters of the emulsification pump group, and the other group is used to set the automatic switching function parameters of the spray pump group. Each group of parameters can be classified according to its characteristics as follows: time parameters, dynamic and static pump quantity parameters, efficiency upper and lower limit parameters, and automatic pump sequence parameters (i.e., the priority of the working pump).

[0032] Based on the above process, the inventors noticed that when the demand for emulsion at the coal mining face is high, the proportion of time the unloading valve is open increases, and similarly, the loading efficiency of the drive motor of the working pump also increases. Therefore, by monitoring the status of the unloading valve or the drive motor, the amount of liquid used at the coal mining face can be effectively and accurately determined, thus providing a reliable basis for increasing or decreasing the number of working pumps.

[0033] The principle of the present invention has been briefly explained above with reference to Figure 1. The present invention will now be described in detail with reference to the specific implementation steps.

[0034] Figure 2 is a schematic diagram illustrating a method 200 for automatically adjusting the number of working pumps in a pumping station according to an embodiment of the present invention. It is understood that the method flow shown in Figure 2 can be implemented in the exemplary scenario shown in Figure 1, and therefore the description in Figure 1 also applies to Figure 2.

[0035] As shown in Figure 2, according to the present invention, in step S201, the loading efficiency of the pump station within a set time period is obtained. The loading efficiency may include the loading time percentage of the unloading valve and / or the loading efficiency of the drive motor of the working pump. In some embodiments, the number of working pumps can be adjusted according to the loading time percentage of the unloading valve in the pump station, or it can be adjusted according to the loading efficiency of the drive motor of the working pump. For example, for a pump station equipped with an electromagnetic unloading valve, the loading efficiency of the electromagnetic valve is used to calculate the pump's loading efficiency. For a pump station with only a mechanical unloading valve, the real-time torque (or real-time current) of the main pump motor is used to calculate the pump's loading efficiency.

[0036] In step S202, the loading efficiency of the pump station is compared with a set threshold range to determine whether the loading efficiency of the pump station is within the set threshold range. In some embodiments, the loading time (opening time) of the unloading valve can be compared with the corresponding time threshold range, or the loading efficiency of the drive motor can be compared with the corresponding efficiency threshold range. It should be noted that the time threshold range corresponding to the unloading valve and the efficiency threshold range corresponding to the drive motor can be the same, or they can be set separately. Those skilled in the art can adjust them according to actual needs.

[0037] In step S203, in response to the pump station's loading efficiency not being within a set threshold range, the number of working pumps in the pump station is adjusted. In some embodiments, when the pump station's loading efficiency is within the set threshold range, it means that the number of working pumps in the pump station does not need to be adjusted. When the pump station's loading efficiency is not within the set threshold range, it indicates that the number of working pumps in the pump station is set unreasonably, possibly indicating an excessive or insufficient number of working pumps, and adjustment of the number of working pumps is required.

[0038] In some embodiments, the minimum switching interval of the working pumps, the delay time for calculating the loading efficiency, the number of normally open working pumps, and the number of adjustable working pumps can also be set. For example, an emulsion pump station can have emulsion pump sequences 1-4 to choose from, and a spray pump station can have spray pump sequences 1-3 to choose from.

[0039] Figure 3 is a schematic diagram illustrating another method 300 for automatically adjusting the number of working pumps in a pumping station according to an embodiment of the present invention. It is understood that the method flow shown in Figure 3 can be implemented in the exemplary scenario shown in Figure 1, and therefore the description of Figure 1 also applies to Figure 3.

[0040] As shown in Figure 3, in step S301, the loading efficiency type of the pump station is determined. In some embodiments, the loading efficiency of the pump station can be the loading time percentage of the unloading valve, the loading efficiency of the drive motor, or both the loading time percentage of the unloading valve and the loading efficiency of the drive motor.

[0041] When adjusting the number of working pumps based on the loading time ratio of the unloading valve in the pumping station, steps S302 to S303 can be executed. Specifically, in step S302, the opening time of the unloading valve when supplying liquid to the working face is counted within a set time. In some embodiments, taking the acquisition of the loading time of the electromagnetic unloading valve as an example, the working time of the electromagnetic unloading valve, i.e., the opening time of the electromagnetic unloading valve when supplying liquid to the working face, can be obtained from the control device controlling the electromagnetic unloading valve in the pumping station. In step S303, the ratio of the opening time to the set time is calculated to obtain the loading time ratio of the unloading valve.

[0042] When adjusting the number of working pumps based on the loading efficiency of the drive motors in the pumping station, steps S304 to S306 can be executed. Specifically, in step S304, the torque of the drive motor of the working pump is obtained during operation. In some embodiments, when the motor is driven by a frequency converter, the operating torque of the motor can be measured in real time through the operating parameters of the frequency converter, thereby realizing the detection of the torque of the drive motor of the working pump during operation.

[0043] In step S305, the running time when the torque is greater than a torque threshold is counted within a set time period. In some embodiments, a certain torque threshold can be set for the drive motor. When the torque of the drive motor is greater than the torque threshold, it is determined that the drive motor is in a loaded state. By counting the running time when the torque of the drive motor is greater than the torque threshold, the recording time of the drive motor can be determined. In step S306, the ratio of the running time to the set time is calculated to obtain the loading efficiency of the drive motor of the working pump.

[0044] The above steps determine the pump station's loading efficiency using two different methods. Then, in step S307, it is determined whether the pump station's loading efficiency is within a set threshold range. If the pump station's loading efficiency is not within the set threshold range, in step S308, the number of working pumps in the pump station is adjusted. The specific method for adjusting the number of working pumps can be implemented using the method flow shown in Figure 4.

[0045] Figure 4 is a schematic diagram illustrating a specific method 400 for increasing or decreasing the number of working pumps according to an embodiment of the present invention. It is understood that the method flow shown in Figure 4 can be implemented in the exemplary scenario shown in Figure 1, and therefore the description in Figure 1 also applies to Figure 4.

[0046] As shown in Figure 4, in step S401, when the loading efficiency of the pumping station is higher than the upper limit of the threshold range, the number of working pumps in the pumping station is increased. In step S402, when the loading efficiency of the pumping station is lower than the lower limit of the threshold range, the number of working pumps in the pumping station is decreased. It can be understood that the execution order of steps S401 and S402 is not restricted in this scheme.

[0047] In some embodiments, if the pumping station includes normally operating pumps, then when adjusting the number of operating pumps in the pumping station, the number of operating pumps in the pumping station will not change if the pumping station's loading efficiency is below the lower limit of a threshold range and all operating pumps in the pumping station are static pumps. Correspondingly, the number of available pumps in the pumping station can also be monitored in real time, and the number of operating pumps in the pumping station will not change when the pumping station's loading efficiency is above the upper limit of a threshold range and all available operating pumps in the pumping station are running.

[0048] Furthermore, when adjusting the number of working pumps in the pumping station, one or more working pumps can be controlled to start or stop simultaneously. In some embodiments, when the loading efficiency of the pumping station is lower than the lower limit of the threshold range, all working pumps can be directly shut down, or all working pumps except the normally open working pumps can be shut down. Correspondingly, when the loading efficiency of the pumping station is higher than the upper limit of the threshold range, all working pumps can be directly started, or some of the available working pumps in the pumping station can be started.

[0049] In some embodiments, when adjusting the number of working pumps in a pumping station, the working pumps can be controlled to turn on or off according to their priority order. Based on this, in step S403, the operating status of the working pumps in the pumping station is obtained to determine if any abnormality has occurred. For example, if a working pump in the pumping station malfunctions or is locked out, that working pump can be removed from the available working pumps to ensure the effectiveness of the adjustment of the number of working pumps.

[0050] In step S404, in response to a malfunction in the working pump, the malfunctioning working pump is shut down, and the priority order of the working pumps is adjusted. In some embodiments, when a malfunctioning working pump occurs, the priority order of the available working pumps in the pumping station can be changed in a timely manner, thereby achieving a more reliable quantity adjustment process.

[0051] In one application scenario, the loading efficiency of each pump is first calculated. Then, after the pumps start and the minimum switching interval delay has elapsed, the loading efficiency of the current pump station is compared with the upper and lower limits of a set threshold range. If it is greater than the upper limit of the threshold range, it indicates that each working pump is loading too frequently, i.e., the liquid consumption is large, and in this case, one more pump is put into operation. If it is less than the lower limit of the threshold range, it indicates that each working pump is loading too slowly, i.e., the liquid consumption is small, and in this case, one less pump is put into operation.

[0052] Throughout the control process, the health status of each pump is monitored in real time. If a pump malfunctions or is locked out in an emergency stop, it is removed from the pump sequence buffer and forcibly stopped, no longer participating in automatic start-stop control. It is reinserted into the pump sequence buffer according to its original sequence after the fault is reset or unlocked. In other words, the pump sequence for the automatic start-stop function is actually executed according to the order in the pump sequence buffer.

[0053] Taking four parallel emulsifying pumps in an emulsion pump station as an example, the minimum interval for automatic pump switching can be set to 300 seconds, and the loading efficiency calculation delay can be set to 30 seconds. The number of static pumps (normally open working pumps) is 2, the number of dynamic pumps (adjustable) is 2, the upper limit of the threshold range is 85%, the lower limit of the threshold range is 20%, and the emulsifying pump sequence 1-4 can be selected. The priority of the pump sequence can be: emulsifying pump station #4, emulsifying pump station #2, emulsifying pump station #1, and emulsifying pump station #3.

[0054] In automatic pump switching mode, the emulsifying pumps are started simultaneously. The efficiency of each pump is calculated every 30 seconds. After 300 seconds, the efficiency of both pumps is compared to their upper and lower efficiency limits. If the efficiency of both pumps exceeds the upper limit of the set threshold (85%), an additional pump is added (emulsifying pump #1), and the pump switching timer restarts.

[0055] When the loading efficiency of both pumps is less than 20% of the set lower efficiency limit, one pump can be removed from the system. However, if the number of pumps currently running is the same as the number of pumps in the static pump group, this pump reduction operation is ineffective, and the pump switching time will not be reset. But if three pumps are currently running, namely the emulsifying pumps in #4, #2, and #1, when the loading efficiency of these three pump stations is less than 20% of the set lower threshold range, the system will start to reduce the number of pumps from the system. In terms of pump sequence, this means stopping the #1 emulsifying pump, and the pump switching time will be reset.

[0056] If emulsifying pump #2 malfunctions or is locked out in an emergency stop, the priority of the working pumps will be updated to: emulsifying pump #4, emulsifying pump #1, and emulsifying pump #3. Emulsifying pump #1 will automatically be promoted to a static pump, leaving only emulsifying pump #3 as the dynamic pump. When the pump set needs to be stopped, all currently running emulsifying pumps will stop working simultaneously.

[0057] The present invention combines information such as the pump station's loading efficiency (based on the proportion of time the electromagnetic unloading valve operates or the torque change of the main pump motor) and pump station health status monitoring to dynamically adjust the pump station's operating quantity, thereby maximizing pump station efficiency and achieving energy saving. This method is simple to set up, and because its functionality relies entirely on its own system, it ensures control stability and rapid deployment of system equipment.

[0058] Figure 5 is a schematic diagram illustrating a device 500 for automatically adjusting the number of working pumps in a pumping station according to an embodiment of the present invention. The device 500 for automatically adjusting the number of working pumps in a pumping station may include a device 501 according to an embodiment of the present invention, as well as its peripheral devices and an external network. The device 501 performs data acquisition, calculation, and other operations to implement the solution of the present invention described above in conjunction with Figures 2 to 4.

[0059] As shown in Figure 5, device 501 may include CPU 5011, which may be a general-purpose CPU, a dedicated CPU, or other information processing and program execution unit. Furthermore, device 501 may also include a mass storage device 5012 and a read-only memory (ROM) 5013. The mass storage device 5012 can be configured to store various types of data and programs required for adjusting the number of working pumps. The ROM 5013 can be configured to store data required for power-on self-test of device 501, initialization of various functional modules in the system, drivers for basic input / output of the system, and data required for booting the operating system.

[0060] Furthermore, device 501 also includes other hardware platforms or components, such as the TPU (Tensor Processing Unit) 5014, GPU (Graphics Processing Unit) 5015, FPGA (Field Programmable Gate Array) 5016, and MLU (Memory Logic Unit) 5017 shown. It is understood that although various hardware platforms or components are shown in device 501, they are merely exemplary and not limiting; those skilled in the art can add or remove corresponding hardware as needed. For example, device 501 may include only a CPU as a known hardware platform and another hardware platform as the test hardware platform of this invention.

[0061] The device 501 of the present invention also includes a communication interface 5018, through which it can connect to a local area network / wireless local area network (LAN / WLAN) 505, and further connect to a local server 506 or the Internet 507 via the LAN / WLAN. Alternatively or additionally, the device 501 of the present invention can also directly connect to the Internet or a cellular network via the communication interface 5018 based on wireless communication technology, such as third-generation ("3G"), fourth-generation ("4G"), or fifth-generation ("5G") wireless communication technology. In some application scenarios, the device 501 of the present invention can also access a server 508 on an external network and, possibly, a database 509, as needed.

[0062] Peripherals of device 501 may include a display device 502, an input device 503, and a data transfer interface 504. In one embodiment, the display device 502 may include, for example, one or more speakers and / or one or more visual displays. The input device 503 may include, for example, a keyboard or mouse, or other input buttons or controls configured to receive data input or user commands. The data transfer interface 504 may include, for example, a serial interface, a parallel interface, or a Universal Serial Bus interface (“USB”), a Small Computer System Interface (“SCSI”), Serial ATA, FireWire (“FireWire”), PCI Express, and a High Definition Multimedia Interface (“HDMI”), configured for data transfer and interaction with other devices or systems.

[0063] The CPU 5011, mass storage 5012, read-only memory ROM 5013, TPU 5014, GPU 5015, FPGA 5016, MLU 5017, and communication interface 5018 of the device 501 of the present invention can be interconnected via bus 5019, and can interact with peripheral devices through this bus. In one embodiment, the CPU 5011 can control other hardware components in the device 501 and its peripheral devices through this bus 5019.

[0064] In operation, the processor CPU 5011 of the device 501 of the present invention can obtain the operating information of the drive motor or unloading valve of the working pump through the input device 503 or the data transmission interface 504, and retrieve the computer program instructions or code stored in the memory 5012 for data processing to complete the process of adjusting the number of working pumps.

[0065] As can be seen from the above description of the modular design of the present invention, the system of the present invention can be flexibly arranged according to application scenarios or needs, and is not limited to the architecture shown in the accompanying drawings. Furthermore, it should be understood that any module, unit, component, server, computer, or device performing the operations of the present invention examples may include or otherwise access computer-readable media, such as storage media, computer storage media, or data storage devices (removable) and / or non-removable) such as disks, optical discs, or magnetic tapes. Computer storage media may include volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Based on this, the present invention also discloses a computer-readable storage medium storing computer-readable instructions for automatically adjusting the number of working pumps in a pumping station, which, when executed by one or more processors, implement the methods and operations described above in conjunction with the accompanying drawings.

[0066] While various embodiments of the invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in the practice of the invention. The appended claims are intended to define the scope of protection of the invention and therefore cover modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A method for automatically adjusting the number of operating pumps in a pumping station, characterized in that, include: The loading efficiency of the pump station within a set time period is obtained, and the loading efficiency includes the loading time percentage of the unloading valve and / or the loading efficiency of the drive motor of the working pump. The loading efficiency of the pumping station is compared with a set threshold range to determine whether the loading efficiency of the pumping station is within the set threshold range. And in response to the fact that the loading efficiency of the pumping station is not within the set threshold range, the number of working pumps in the pumping station is adjusted; The process of obtaining the loading efficiency of the pump station within a set time period includes: calculating the opening time of the unloading valve when supplying liquid to the working face within the set time period; and calculating the ratio of the opening time to the set time to obtain the loading time percentage of the unloading valve; the process of obtaining the loading efficiency of the pump station within the set time period includes: obtaining the torque of the drive motor of the working pump during operation; calculating the running time when the torque is greater than a torque threshold within the set time period; and calculating the ratio of the running time to the set time to obtain the loading efficiency of the drive motor of the working pump; the process of adjusting the number of working pumps in the pump station includes: increasing the number of working pumps in the pump station when the loading efficiency of the pump station is higher than the upper limit of the threshold range; or decreasing the number of working pumps in the pump station when the loading efficiency of the pump station is lower than the lower limit of the threshold range.

2. The method according to claim 1, characterized in that, The pumping station includes normally open working pumps. Adjusting the number of working pumps in the pumping station includes: responding to the fact that the loading efficiency of the pumping station is lower than the lower limit of the threshold range, and all the working pumps currently in operation in the pumping station are static pumps, without changing the number of working pumps currently in operation in the pumping station.

3. The method according to claim 1, characterized in that, The adjustment of the number of working pumps in the pumping station also includes: each time the number of working pumps in the pumping station is adjusted, controlling one or more working pumps to turn on or off.

4. The method according to claim 1, characterized in that, Adjusting the number of working pumps in the pumping station also includes controlling the working pumps to turn on or off according to their priority order.

5. The method according to claim 4, characterized in that, The step of controlling the start or stop of the working pumps according to their priority order includes: acquiring the operating status of the working pumps in the pumping station to determine whether the working pumps are malfunctioning; and in response to the malfunction of the working pumps, controlling the malfunctioning working pumps to stop and adjusting the priority order of the working pumps.

6. A device for automatically adjusting the number of operating pumps in a pumping station, characterized in that, include: processor; And a memory for storing computer-executable instructions that, when executed by the processor, implement the method according to any one of claims 1-5.

7. A computer-readable storage medium, characterized in that, It stores program instructions for automatically adjusting the number of working pumps in a pumping station, which, when executed by a processor, implement the method according to any one of claims 1-5.

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