A constant pressure water supply control method, system, and medium for a standardized pumping station with dual water supply systems.

Abstract

This application provides a constant pressure water supply control method, system, and medium for a standardized secondary water supply pump station. The method includes: acquiring and processing multiple historical water supply data points within a preset time period, including water supply time data, corresponding pump water supply pressure data, and user node water supply pressure data, to obtain the water supply pressure level and corresponding water supply pressure and time; processing this data in conjunction with the user node water supply pressure to obtain the pipeline pressure loss value corresponding to the water supply pressure level; acquiring and processing real-time water supply time point data to obtain the water supply pressure level, corresponding water supply pressure, and pipeline pressure loss value, to obtain the real-time demand water supply pressure of the pump; then implementing water supply and acquiring and processing real-time water supply pressure data from user nodes to obtain a real-time water supply evaluation index; finally, performing threshold comparison and adjusting the water supply mode based on the comparison results; thereby achieving constant pressure water supply and precise control of the secondary water supply while reducing energy consumption.

Description

Technical Field

[0001] This application relates to the field of secondary water supply technology, and more specifically, to a constant pressure water supply control method, system, and medium for a standardized secondary water supply pump station. Background Technology

[0002] Secondary water supply systems play a crucial role in ensuring the water needs of high-rise residential and commercial buildings. Due to significant fluctuations in water demand at different times, traditional secondary water supply systems often struggle to achieve constant pressure supply and precise control. Currently, water supply systems often use simple on / off control or experience-based control methods to control water pumps, failing to adjust pump operating parameters in real time according to actual water demand. Furthermore, water supply systems suffer from high energy consumption during operation. With the acceleration of urbanization and the increasing demands for quality of life, there is an urgent need for a more efficient and stable constant pressure water supply control method.

[0003] Effective technical solutions are urgently needed to address the above problems. Summary of the Invention

[0004] The purpose of this application is to provide a constant pressure water supply control method, system, and medium for a standardized secondary water supply pump station. This method involves processing multiple historical water supply data points within a preset time period, including water supply time data, corresponding pump water supply pressure data, and user node water supply pressure data, to obtain the water supply pressure level and its corresponding water supply pressure and time. This data is then combined with user node water supply pressure data to obtain the pipeline pressure loss value corresponding to the water supply pressure level. Real-time water supply time point data is also processed to obtain the water supply pressure level, its corresponding water supply pressure, and pipeline pressure loss value, thus obtaining the real-time demand water supply pressure of the pump. Water supply is then implemented, and real-time user node water supply pressure data is processed to obtain a real-time water supply evaluation index. Threshold comparisons are performed, and the water supply mode is adjusted based on the comparison results. This achieves constant pressure water supply and precise control of the secondary water supply while reducing energy consumption.

[0005] This application also provides a constant pressure water supply control method for standardized secondary water supply pump stations, including the following steps:

[0006] Acquire multiple historical water supply data within a preset time period, including water supply time data and corresponding water pump pressure data and user node water supply pressure data. Process the water supply time data and corresponding water pump pressure data to obtain the water supply pressure level and the corresponding water supply pressure and water supply time.

[0007] The water supply pressure data of the user node and the water supply pressure corresponding to the water supply pressure level are processed to obtain the pipeline pressure loss value corresponding to the water supply pressure level.

[0008] The system acquires real-time water supply time point data, processes the real-time water supply time point data in conjunction with the water supply time corresponding to the water supply pressure level, obtains the water supply pressure level and the corresponding water supply pressure and pipeline pressure loss value, and processes them to obtain the real-time demand water supply pressure of the water pump, including off-peak water supply demand pressure, flat-peak water supply demand pressure and peak water supply demand pressure.

[0009] The system controls the water pump to supply water based on the real-time demand and water pressure, and obtains the real-time water pressure data of the user nodes. The system processes the real-time water pressure data of the user nodes to obtain the real-time water supply evaluation index.

[0010] The real-time water supply assessment index is compared with the preset water supply assessment threshold, and the water supply mode is adjusted according to the comparison result.

[0011] Optionally, in the constant pressure water supply control method for a standardized secondary water supply pump station described in this application, the step of acquiring multiple historical water supply data within a preset time period, including water supply time data and corresponding water pump supply pressure data and user node water supply pressure data, and processing the water supply time data and corresponding water pump supply pressure data to obtain the water supply pressure level and corresponding water supply pressure and water supply time, includes:

[0012] The water pump supply pressure data is compared with a preset water supply pressure threshold, wherein the water supply pressure threshold includes a preset first water supply pressure threshold and a preset second water supply pressure threshold, and the preset first water supply pressure threshold is less than the preset second water supply pressure threshold.

[0013] If the water pump supply pressure data is less than the preset first water supply pressure threshold, then the corresponding off-peak water supply pressure level is defined as follows: the average value of the water pump supply pressure data and the corresponding water supply time are respectively the off-peak water supply pressure and off-peak water supply time corresponding to the off-peak water supply pressure level.

[0014] If the water pump supply pressure data is greater than or equal to the preset first water supply pressure threshold and less than the preset second water supply pressure threshold, then the corresponding peak water supply pressure level is: the average value of the water pump supply pressure data and the corresponding water supply time are respectively the peak water supply pressure and peak water supply time corresponding to the peak water supply pressure level.

[0015] If the water pump supply pressure data is greater than or equal to the preset second water supply pressure threshold, then the corresponding peak water supply pressure level is defined as follows: the average value of the water pump supply pressure data and the corresponding water supply time are the peak water supply pressure and peak water supply time corresponding to the peak water supply pressure level, respectively.

[0016] Optionally, in the constant pressure water supply control method for a standardized pumping station with two water supply systems described in this application, the step of processing the water supply pressure data of the user node and the water supply pressure corresponding to the water supply pressure level to obtain the pipeline pressure loss value corresponding to the water supply pressure level includes:

[0017] The average water supply pressure data of the corresponding user nodes is calculated based on the off-peak water supply time, the off-peak water supply time, and the peak water supply time to obtain the actual off-peak water supply pressure, the actual off-peak water supply pressure, and the actual peak water supply pressure on the user side corresponding to the off-peak water supply time, the off-peak water supply time, and the peak water supply time.

[0018] The actual supply pressure during off-peak hours, during off-peak hours, and during peak hours on the user side are processed with the actual supply pressure during off-peak hours, during off-peak hours, and during peak hours to obtain the pressure loss values ​​of the pipeline during off-peak hours, during off-peak hours, and during peak hours, respectively.

[0019] Optionally, in the constant pressure water supply control method for a standardized secondary pumping station described in this application, the step of acquiring real-time water supply time point data, processing the real-time water supply time point data in conjunction with the water supply time corresponding to the water supply pressure level to obtain the water supply pressure level and the corresponding water supply pressure and pipeline pressure loss value, and processing these values ​​to obtain the real-time water supply demand pressure of the pump, including off-peak water supply demand pressure, off-peak water supply demand pressure, and peak water supply demand pressure, includes:

[0020] Obtain real-time water supply time point data and compare the real-time water supply time point data with the water supply time corresponding to the water pressure level;

[0021] If the real-time water supply time point is the off-peak water supply time, then the off-peak water supply pressure level is used to calculate the off-peak water supply pressure and the corresponding pipeline pressure loss value to obtain the off-peak water supply demand pressure of the water pump.

[0022] If the real-time water supply time point is the off-peak water supply time, then the off-peak water supply pressure level is used to calculate the off-peak water supply pressure and the corresponding pipeline pressure loss value to obtain the off-peak water supply demand pressure of the water pump.

[0023] If the real-time water supply time point is the peak water supply time, then the peak water supply pressure level is calculated by summing the peak water supply pressure and the corresponding pipeline pressure loss value to obtain the peak water supply demand pressure of the water pump.

[0024] Optionally, in the constant pressure water supply control method for a standardized pumping station with secondary water supply described in this application, the step of controlling the water pump to supply water according to the real-time demand water pressure and obtaining real-time water pressure data of user nodes, and processing the real-time water pressure data of user nodes to obtain a real-time water supply evaluation index includes:

[0025] Water supply is implemented by controlling the water pump according to real-time demand and water pressure.

[0026] Acquire real-time water supply pressure data from user nodes, and extract peak pressure data and valley pressure data;

[0027] The node pressure variance is calculated based on the real-time water supply pressure data of the user nodes.

[0028] The peak pressure data, valley pressure data, and node pressure variance are input into a preset real-time water supply assessment model for processing to obtain a real-time water supply assessment index.

[0029] Optionally, in the constant pressure water supply control method for a standardized secondary water supply pump station described in this application, the step of comparing the real-time water supply assessment index with a preset water supply assessment threshold, and adjusting the water supply mode based on the comparison result, includes:

[0030] The real-time water supply assessment index is compared with the preset water supply assessment threshold, wherein the preset water supply assessment threshold includes a first preset water supply assessment threshold, a second preset water supply assessment threshold and a third preset water supply assessment threshold, and the first preset water supply assessment threshold is less than the second preset water supply assessment threshold, and the second preset water supply assessment threshold is less than the third preset water supply assessment threshold.

[0031] If the water supply is less than the first preset water supply assessment threshold, the auxiliary water pump will be started simultaneously to supply water.

[0032] If the value is greater than or equal to the first preset water supply assessment threshold and less than the second preset water supply assessment threshold, the auxiliary water pump will not be turned on and the main water pump speed will be automatically adjusted.

[0033] If the value is greater than or equal to the second preset water supply assessment threshold and less than the third preset water supply assessment threshold, no adjustment will be made.

[0034] If the value is greater than or equal to the third preset water supply assessment threshold, the main water pump will be shut down and the auxiliary water pump will be turned on.

[0035] Optionally, in the constant pressure water supply control method for a standardized pumping station with two water supplies described in this application, the step of not starting the auxiliary water pump and automatically adjusting the main water pump speed if the value is greater than or equal to the first preset water supply assessment threshold and less than the second preset water supply assessment threshold, further includes:

[0036] The required speed of the main water pump is obtained by querying the preset water supply assessment index and the mapping table between the real-time water supply assessment index and the water pump speed.

[0037] The main water pump supply is controlled according to the required speed of the main water pump.

[0038] Optionally, in the constant pressure water supply control method for a standardized secondary water supply pump station described in this application, after controlling the main water pump's water supply according to the required speed of the main water pump, the method further includes:

[0039] Acquire real-time water supply characteristic data of the main water pump, including flow rate data, head data, and input power;

[0040] The flow rate data, head data, and input power are processed to obtain the real-time water supply efficiency of the main water pump.

[0041] The real-time water supply efficiency of the main water pump is compared with the preset water supply efficiency threshold of the main water pump;

[0042] If the efficiency is less than the preset threshold for main water pump water supply efficiency, an inefficient operation warning will be issued.

[0043] If the value is greater than or equal to the main water pump's water supply efficiency threshold, no action will be taken.

[0044] Secondly, this application provides a constant pressure water supply control system for a standardized dual-supply pumping station. The system includes a memory and a processor. The memory includes a program for a constant pressure water supply control method for a standardized dual-supply pumping station. When the program for the constant pressure water supply control method for a standardized dual-supply pumping station is executed by the processor, it implements the following steps:

[0045] Acquire multiple historical water supply data within a preset time period, including water supply time data and corresponding water pump pressure data and user node water supply pressure data. Process the water supply time data and corresponding water pump pressure data to obtain the water supply pressure level and the corresponding water supply pressure and water supply time.

[0046] The water supply pressure data of the user node and the water supply pressure corresponding to the water supply pressure level are processed to obtain the pipeline pressure loss value corresponding to the water supply pressure level.

[0047] The system acquires real-time water supply time point data, obtains the water supply pressure level and corresponding water supply pressure and pipeline pressure loss value based on the real-time water supply time point data, and processes it to obtain the real-time demand water supply pressure of the water pump, including off-peak water supply demand pressure, flat-peak water supply demand pressure and peak water supply demand pressure.

[0048] The system controls the water pump to supply water based on the real-time demand and water pressure, and obtains the real-time water pressure data of the user nodes. The system processes the real-time water pressure data of the user nodes to obtain the real-time water supply evaluation index.

[0049] The real-time water supply assessment index is compared with the preset water supply assessment threshold, and the water supply mode is adjusted according to the comparison result.

[0050] Thirdly, this application also provides a computer-readable storage medium storing a program for a constant pressure water supply control method for a standardized pumping station with two power supplies. When the program for the constant pressure water supply control method for a standardized pumping station with two power supplies is executed by a processor, it implements the steps of the constant pressure water supply control method for a standardized pumping station with two power supplies as described in any of the above claims.

[0051] As can be seen from the above, the constant pressure water supply control method, system, and medium for a standardized secondary water supply pump station provided in this application obtains and processes multiple historical water supply data within a preset time period, including water supply time data, corresponding water pump supply pressure data, and user node water supply pressure data, to obtain the water supply pressure level and corresponding water supply pressure and time. Combined with the user node water supply pressure, the system obtains the pipeline pressure loss value corresponding to the water supply pressure level. Real-time water supply time point data is obtained and processed to obtain the water supply pressure level, corresponding water supply pressure, and pipeline pressure loss value, thus obtaining the real-time demand water supply pressure of the water pump. Water supply is then implemented, and real-time water supply pressure data from user nodes is obtained and processed to obtain a real-time water supply evaluation index. Threshold comparisons are performed, and the water supply mode is adjusted based on the comparison results. This achieves constant pressure water supply and precise control of the secondary water supply while reducing energy consumption.

[0052] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing embodiments of this application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0053] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 A flowchart illustrating a constant pressure water supply control method for a standardized dual-supply pump station is provided in this application embodiment;

[0055] Figure 2 A flowchart illustrating the method for obtaining water supply pressure levels and corresponding water supply pressure and time in a standardized pump station with two water supply systems, provided in this application embodiment;

[0056] Figure 3 A flowchart illustrating the method for obtaining pipeline pressure loss values ​​corresponding to water supply pressure levels in a standardized pump house with dual water supply systems, as provided in this application embodiment;

[0057] Figure 4 This is a flowchart illustrating the process of obtaining a real-time water supply evaluation index for a constant pressure water supply control method for a standardized pumping station with two water supply systems, as provided in an embodiment of this application. Detailed Implementation

[0058] The technical solutions of the embodiments of this application 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 this application, and not all of the embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0059] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0060] Please refer to Figure 1 , Figure 1 This is a flowchart illustrating a constant pressure water supply control method for a standardized dual-supply pumping station according to some embodiments of this application. This constant pressure water supply control method for a standardized dual-supply pumping station is used in terminal equipment, such as computers and mobile terminals. The method includes the following steps:

[0061] S11. Obtain multiple historical water supply data within a preset time period, including water supply time data and corresponding water pump pressure data and user node pressure data. Process the water supply time data and corresponding water pump pressure data to obtain the water supply pressure level and the corresponding water supply pressure and water supply time.

[0062] S12. Process the water supply pressure data of the user node and the water supply pressure corresponding to the water supply pressure level to obtain the pipeline pressure loss value corresponding to the water supply pressure level.

[0063] S13. Obtain real-time water supply time point data, process the real-time water supply time point data in combination with the water supply time corresponding to the water supply pressure level, obtain the water supply pressure level and the corresponding water supply pressure and pipeline pressure loss value, and process them to obtain the real-time demand water supply pressure of the water pump, including off-peak water supply demand pressure, flat-peak water supply demand pressure and peak water supply demand pressure.

[0064] S14. Control the water pump to supply water according to the real-time demand and water pressure, and obtain the real-time water pressure data of the user node. Process the real-time water pressure data of the user node to obtain the real-time water supply evaluation index.

[0065] S15. Compare the real-time water supply assessment index with the preset water supply assessment threshold, and adjust the water supply mode according to the comparison result.

[0066] It should be noted that, in order to achieve constant pressure water supply and precise control while reducing equipment energy consumption, the system first acquires multiple historical water supply data sets within a preset time period, including water supply time data, corresponding water pump supply pressure data, and user node water supply pressure data. The water pump supply pressure data is then categorized based on its magnitude and corresponding time to obtain the water supply pressure level and its corresponding supply pressure and time. Next, the average of the water supply pressure data from multiple user nodes is calculated, and the difference is calculated with the corresponding supply pressure of the water supply pressure level to obtain the pipeline pressure loss value corresponding to that level. Then, the water supply pressure level is determined based on real-time water supply time data, yielding the corresponding supply pressure and pipeline pressure loss value. These values ​​are summed to obtain the real-time demand water supply pressure of the water pump. The water pump supply is controlled based on this real-time demand water supply pressure. Furthermore, real-time water supply pressure data from user nodes is acquired using pressure sensors installed at the user nodes. This data is processed to obtain a real-time water supply evaluation index. Finally, a threshold comparison is used to determine whether adjustments to the water supply mode are necessary.

[0067] Please refer to Figure 2 , Figure 2 This is a flowchart illustrating the process of obtaining the water supply pressure level and corresponding water supply pressure and time in a constant pressure water supply control method for a standardized pump station with two water supply systems, as described in some embodiments of this application. According to an embodiment of the present invention, the step of acquiring multiple historical water supply data within a preset time period, including water supply time data and corresponding pump water supply pressure data and user node water supply pressure data, and processing the water supply time data and corresponding pump water supply pressure data to obtain the water supply pressure level and corresponding water supply pressure and time, includes:

[0068] S21. The water pump supply pressure data is compared with a preset water supply pressure threshold, wherein the water supply pressure threshold includes a preset first water supply pressure threshold and a preset second water supply pressure threshold, and the preset first water supply pressure threshold is less than the preset second water supply pressure threshold.

[0069] S22. If the water pump supply pressure data is less than the preset first water supply pressure threshold, then the corresponding off-peak water supply pressure level is defined as the average value of the water pump supply pressure data and the corresponding water supply time, which are respectively the off-peak water supply pressure and off-peak water supply time corresponding to the off-peak water supply pressure level.

[0070] S23. If the water pump supply pressure data is greater than or equal to the preset first water supply pressure threshold and less than the preset second water supply pressure threshold, then the corresponding peak water supply pressure level is defined as follows: the average value of the water pump supply pressure data and the corresponding water supply time are respectively the peak water supply pressure and peak water supply time corresponding to the peak water supply pressure level.

[0071] S24. If the water pump supply pressure data is greater than or equal to the preset second water supply pressure threshold, then the corresponding peak water supply pressure level, the average value of the water pump supply pressure data and the corresponding water supply time are respectively the peak water supply pressure and peak water supply time corresponding to the peak water supply pressure level.

[0072] It should be noted that, in order to more accurately control the water pump pressure for water supply, multiple historical water supply data are first acquired based on pressure sensors installed at the water pump outlet and the user's inlet side. These data include water supply time data, corresponding water pump supply pressure data, and user node water supply pressure data within a preset time period. In this embodiment, the preset time period is set to 1 day, and pressure data is acquired every 5 minutes. The acquired multiple water pump supply pressure data are then compared with preset water supply pressure thresholds. The preset water supply pressure thresholds include a first preset water supply pressure threshold and a second preset water supply pressure threshold. In this embodiment, the first preset water supply pressure threshold is set to 0.3 MPa, and the second preset water supply pressure threshold is set to 0.4 MPa. If the pump supply pressure data is lower than the preset first supply pressure threshold, it corresponds to the off-peak supply pressure level. By comparing the threshold values ​​of multiple pump supply pressure data and their corresponding supply times, multiple off-peak supply pressures and their corresponding off-peak supply times can be obtained. For example, if multiple consecutive pump supply pressure data are lower than the preset first supply pressure threshold, with the earliest corresponding time being 22:30 and the latest time being 07:30, and the average value of all the obtained pump supply pressure data is 0.26MPa, then 0.26MPa is the off-peak supply pressure, and 22:30-07:30 is the off-peak supply time. Similarly, multiple off-peak supply pressures and their corresponding off-peak supply times, as well as multiple peak supply pressures and their corresponding peak supply times, can be obtained.

[0073] Please refer to Figure 3 , Figure 3 This is a flowchart illustrating the process of obtaining pipeline pressure loss values ​​corresponding to water supply pressure levels in a constant pressure water supply control method for a standardized secondary water supply pump station, as described in some embodiments of this application. According to an embodiment of the present invention, the step of processing the water supply pressure data of the user node and the water supply pressure corresponding to the water supply pressure level to obtain the pipeline pressure loss value corresponding to the water supply pressure level includes:

[0074] S31. Calculate the average value of the water supply pressure data of the corresponding user nodes according to the off-peak water supply time, the off-peak water supply time and the peak water supply time, and obtain the actual off-peak water supply pressure, the actual off-peak water supply pressure and the actual peak water supply pressure of the user side corresponding to the off-peak water supply time, the off-peak water supply time and the peak water supply time.

[0075] S32. Based on the actual supply pressure during off-peak hours, the actual supply pressure during off-peak hours, and the actual supply pressure during peak hours on the user side, respectively, process them with the actual supply pressure during off-peak hours, the actual supply pressure during off-peak hours, and the actual supply pressure during peak hours to obtain the pressure loss values ​​of the pipeline during off-peak hours, the pressure loss values ​​of the pipeline during off-peak hours, and the pressure loss values ​​of the pipeline during peak hours.

[0076] It should be noted that during the water supply implementation process, the pipeline pressure loss value may not be the same for different pressures and different pipeline layouts. In order to accurately obtain the pipeline pressure loss value corresponding to different situations, the average value of the water supply pressure data of multiple user nodes corresponding to the low-peak water supply time, the off-peak water supply time, and the peak water supply time is calculated first. This yields the actual low-peak supply pressure, the actual off-peak supply pressure, and the actual peak supply pressure on the user side corresponding to the low-peak water supply time, the off-peak water supply pressure, and the peak water supply pressure. This is then processed with the low-peak water supply pressure, the off-peak water supply pressure, and the peak water supply pressure to obtain the low-peak pipeline pressure loss value, the off-peak pipeline pressure loss value, and the peak pipeline pressure loss value corresponding to the low-peak water supply time, the off-peak water supply time, and the peak water supply time.

[0077] The formula for calculating the pressure loss value of the pipeline during off-peak hours is as follows:

[0078] ;

[0079] in, This represents the pressure loss value in the pipeline during off-peak hours. To reduce water pressure during off-peak hours, To alleviate the pressure on the user side during off-peak periods;

[0080] The formula for calculating the pressure loss value of the off-peak pipeline is as follows:

[0081] ;

[0082] in, This represents the pressure loss value of the pipeline during off-peak hours. Off-peak water supply pressure, To alleviate the pressure on peak supply to users;

[0083] The formula for calculating the peak pipeline pressure loss value is as follows:

[0084] ;

[0085] in, This represents the peak pipeline pressure loss value. To ensure peak water supply pressure, This addresses the peak supply pressure on the user side.

[0086] According to an embodiment of the present invention, the real-time water supply time point data is obtained, and the water supply time corresponding to the water supply pressure level is processed to obtain the water supply pressure level and the corresponding water supply pressure and pipeline pressure loss value, and then processed to obtain the real-time water supply demand pressure of the water pump, including off-peak water supply demand pressure, off-peak water supply demand pressure and peak water supply demand pressure, including:

[0087] Obtain real-time water supply time point data and compare the real-time water supply time point data with the water supply time corresponding to the water pressure level;

[0088] If the real-time water supply time point is the off-peak water supply time, then the off-peak water supply pressure level is used to calculate the off-peak water supply pressure and the corresponding pipeline pressure loss value to obtain the off-peak water supply demand pressure of the water pump.

[0089] If the real-time water supply time point is the off-peak water supply time, then the off-peak water supply pressure level is used to calculate the off-peak water supply pressure and the corresponding pipeline pressure loss value to obtain the off-peak water supply demand pressure of the water pump.

[0090] If the real-time water supply time point is the peak water supply time, then the peak water supply pressure level is calculated by summing the peak water supply pressure and the corresponding pipeline pressure loss value to obtain the peak water supply demand pressure of the water pump.

[0091] It should be noted that, in order to obtain the appropriate water pump supply pressure for the current time, the real-time water supply time point data is first acquired. Based on the water supply time corresponding to the water supply pressure level, it is determined whether the real-time water supply time point data belongs to the off-peak, normal, or peak water supply period. For example, if the real-time water supply time point is 06:00, which is an off-peak water supply period, the off-peak water supply pressure corresponding to the off-peak water supply pressure level and the pipeline pressure loss value are summed to calculate the off-peak water supply demand pressure of the water pump. For example, if the off-peak water supply pressure is 0.26 MPa and the pipeline pressure loss value is 0.02 MPa, then 0.26 + 0.02 = 0.28 MPa is the off-peak water supply demand pressure corresponding to the real-time water supply time point data. Similarly, the normal and peak water supply demand pressures corresponding to the real-time water supply time point data can be obtained.

[0092] Please refer to Figure 4 , Figure 4This is a flowchart illustrating the process of obtaining a real-time water supply assessment index in a constant pressure water supply control method for a standardized secondary water supply pump station, as described in some embodiments of this application. According to an embodiment of the present invention, the step of controlling the water pump to supply water based on real-time demand water pressure and acquiring real-time water supply pressure data from user nodes, and processing the real-time water supply pressure data from user nodes to obtain a real-time water supply assessment index, includes:

[0093] S41. Control the water pump to supply water according to the real-time demand and water pressure.

[0094] S42. Obtain real-time water supply pressure data of user nodes, and extract peak pressure data and valley pressure data;

[0095] S43. Calculate the node pressure variance based on the real-time water supply pressure data of the user node.

[0096] S44. Input the peak pressure data, valley pressure data and node pressure variance into a preset real-time water supply assessment model for processing to obtain a real-time water supply assessment index.

[0097] It should be noted that after obtaining the real-time demand water supply pressure corresponding to the real-time water supply time point, the water pump is controlled to supply water based on this pressure. Real-time water supply pressure data for user nodes is obtained. First, peak pressure data and valley pressure data are extracted. Then, based on the obtained real-time water supply pressure data from multiple user nodes, the node pressure variance is calculated. For example, if the obtained real-time water supply pressure data for user nodes is 0.25, 0.27, 0.28, 0.28, 0.26, and 0.25 MPa, the extracted peak pressure data is 0.28 MPa, the valley pressure data is 0.25 MPa, and the average value is 0.265 MPa. [(0.26-0.265)] 2 +(0.26-0.265) 2 +(0.26-0.265) 2 +(0.26-0.265) 2 +(0.26-0.265) 2 +(0.26-0.265) 2 ] / 6=0.000158 is the node pressure variance. The peak pressure data, valley pressure data and node pressure variance are input into the preset real-time water supply assessment model for processing to obtain the real-time water supply assessment index.

[0098] The formula for calculating the real-time water supply assessment index is as follows:

[0099] ;

[0100] in, For real-time water supply assessment index, , , These represent peak pressure data, valley pressure data, and nodal pressure variance, respectively. , , The preset characteristic coefficients are obtained by querying the constant pressure water supply control platform.

[0101] According to an embodiment of the present invention, the step of comparing the real-time water supply assessment index with a preset water supply assessment threshold, and controlling the adjustment of the water supply mode based on the comparison result, includes:

[0102] The real-time water supply assessment index is compared with the preset water supply assessment threshold, wherein the preset water supply assessment threshold includes a first preset water supply assessment threshold, a second preset water supply assessment threshold and a third preset water supply assessment threshold, and the first preset water supply assessment threshold is less than the second preset water supply assessment threshold, and the second preset water supply assessment threshold is less than the third preset water supply assessment threshold.

[0103] If the water supply is less than the first preset water supply assessment threshold, the auxiliary water pump will be started simultaneously to supply water.

[0104] If the value is greater than or equal to the first preset water supply assessment threshold and less than the second preset water supply assessment threshold, the auxiliary water pump will not be turned on and the main water pump speed will be automatically adjusted.

[0105] If the value is greater than or equal to the second preset water supply assessment threshold and less than the third preset water supply assessment threshold, no adjustment will be made.

[0106] If the value is greater than or equal to the third preset water supply assessment threshold, the main water pump will be shut down and the auxiliary water pump will be turned on.

[0107] It should be noted that the obtained real-time water supply assessment index is compared with the preset water supply assessment threshold. In this embodiment, the preset water supply assessment threshold is set to (0, 0.5), [0.5, 0.65), [0.65, 0.85), and [0.85, 1], which correspond to simultaneously starting the auxiliary water pump, not starting the auxiliary water pump, automatically adjusting the main water pump speed, not adjusting, and turning off the main water pump and starting the auxiliary water pump, respectively. For example, if the obtained real-time water supply assessment index is 0.4, it indicates that the water supply effect is poor, so the auxiliary water pump is started simultaneously.

[0108] According to an embodiment of the present invention, if the water supply assessment threshold is greater than or equal to a first preset water supply assessment threshold and less than a second preset water supply assessment threshold, then the auxiliary water pump is not activated and the main water pump speed is automatically adjusted. The method further includes:

[0109] The required speed of the main water pump is obtained by querying the preset water supply assessment index and the mapping table between the real-time water supply assessment index and the water pump speed.

[0110] The main water pump supply is controlled according to the required speed of the main water pump.

[0111] It should be noted that, in order to achieve precise control of the water pump, the required speed of the main water pump is obtained by querying the preset water supply assessment index and the water pump speed mapping table based on the obtained real-time water supply assessment index. The preset water supply assessment index and water pump speed mapping table is generated by analyzing a large number of historical samples of water supply assessment index and corresponding water pump speed. After determining the required speed of the main water pump, the main water pump is controlled to supply water.

[0112] According to an embodiment of the present invention, the step of controlling the main water pump to supply water according to the required speed of the main water pump further includes:

[0113] Acquire real-time water supply characteristic data of the main water pump, including flow rate data, head data, and input power;

[0114] The flow rate data, head data, and input power are processed to obtain the real-time water supply efficiency of the main water pump.

[0115] The real-time water supply efficiency of the main water pump is compared with the preset water supply efficiency threshold of the main water pump;

[0116] If the efficiency is less than the preset threshold for main water pump water supply efficiency, an inefficient operation warning will be issued.

[0117] If the value is greater than or equal to the main water pump's water supply efficiency threshold, no action will be taken.

[0118] It should be noted that water pumps are the main energy-consuming equipment in standardized pump stations. In order to meet water supply demand while reducing energy consumption, the efficiency of water pumps should be guaranteed. The main water pump is controlled to supply water according to the determined required speed of the main water pump, and real-time water supply characteristic data of the main water pump, including flow rate data, head data and input power, is obtained. The flow rate data, head data and input power are input into the preset water pump supply efficiency evaluation model for processing to obtain the real-time water supply efficiency of the main water pump.

[0119] The formula for calculating the real-time efficiency of the main water pump in the water supply efficiency evaluation model is as follows:

[0120] ;

[0121] in, Real-time efficiency of the main water pump supply. , , These are flow rate data, head data, and input power, respectively. The preset characteristic coefficients are obtained by querying the constant pressure water supply control platform.

[0122] The obtained real-time water supply efficiency of the main water pump is compared with the preset main water pump water supply efficiency threshold. In this embodiment, the main water pump water supply efficiency threshold is set to (0, 0.8) and [0.8, 1]. The corresponding output is an inefficient operation warning and no adjustment is made. For example, if the obtained real-time water supply efficiency of the main water pump is 0.7, it means that the water pump efficiency is low, so an inefficient operation warning is output. If the obtained real-time water supply efficiency of the main water pump is 0.85, it means that the water pump efficiency is high, so no adjustment is made.

[0123] It is worth mentioning that, according to embodiments of the present invention, it further includes:

[0124] Obtain the real-time pressure value of the municipal water at the preset node before the water pump;

[0125] The real-time pressure value of the municipal water is processed with the preset standard pressure value of the municipal water to obtain the municipal water pressure deviation rate;

[0126] The water pressure deviation rate is compared with a preset water pressure deviation threshold. The preset water pressure deviation threshold includes a first preset water pressure deviation threshold and a second preset water pressure deviation threshold, and the first preset water pressure deviation threshold is less than the second preset water pressure deviation threshold.

[0127] If the pressure deviation is less than the first preset municipal water pressure deviation threshold, the water pump will be shut off.

[0128] If the pressure deviation is greater than or equal to the first preset municipal water pressure deviation threshold and less than the second preset municipal water pressure deviation threshold, a pressure loss warning will be output.

[0129] If the deviation exceeds the second preset municipal water pressure threshold, no adjustment will be made.

[0130] It should be noted that during the water supply process, if problems such as leakage or municipal water outage occur, the water pump may not be able to respond in time, potentially leading to pump damage. Therefore, the real-time municipal water pressure value at a preset node before the water pump is first obtained and processed against the preset municipal water standard pressure value to obtain the municipal water pressure deviation rate. For example, if the real-time municipal water pressure value is 0.38 MPa and the preset municipal water standard pressure value is 0.4 MPa, then (0.4-0.38) / 0.4=0.05 is the municipal water pressure deviation rate. The obtained municipal water pressure deviation rate is then compared with the preset municipal water pressure deviation threshold. In this embodiment, the preset municipal water pressure deviation threshold is set to (0, 0.1), [0.1, 0.2), and [0.2, 1], corresponding to no adjustment, output of pressure loss warning, and control of water pump shutdown. For example, if the obtained municipal water pressure deviation rate is 0.05, it indicates that the deviation is small, so no adjustment is made.

[0131] This invention also discloses a constant pressure water supply control system for a standardized dual-supply pumping station, comprising a memory and a processor. The memory includes a program for a constant pressure water supply control method for a standardized dual-supply pumping station. When the processor executes the program for the constant pressure water supply control method for a standardized dual-supply pumping station, it performs the following steps:

[0132] Acquire multiple historical water supply data within a preset time period, including water supply time data and corresponding water pump pressure data and user node water supply pressure data. Process the water supply time data and corresponding water pump pressure data to obtain the water supply pressure level and the corresponding water supply pressure and water supply time.

[0133] The water supply pressure data of the user node and the water supply pressure corresponding to the water supply pressure level are processed to obtain the pipeline pressure loss value corresponding to the water supply pressure level.

[0134] The system acquires real-time water supply time point data, processes the real-time water supply time point data in conjunction with the water supply time corresponding to the water supply pressure level, obtains the water supply pressure level and the corresponding water supply pressure and pipeline pressure loss value, and processes them to obtain the real-time demand water supply pressure of the water pump, including off-peak water supply demand pressure, flat-peak water supply demand pressure and peak water supply demand pressure.

[0135] The system controls the water pump to supply water based on the real-time demand and water pressure, and obtains the real-time water pressure data of the user nodes. The system processes the real-time water pressure data of the user nodes to obtain the real-time water supply evaluation index.

[0136] The real-time water supply assessment index is compared with the preset water supply assessment threshold, and the water supply mode is adjusted according to the comparison result.

[0137] It should be noted that, in order to achieve constant pressure water supply and precise control while reducing equipment energy consumption, the system first acquires multiple historical water supply data sets within a preset time period, including water supply time data, corresponding water pump supply pressure data, and user node water supply pressure data. The water pump supply pressure data is then categorized based on its magnitude and corresponding time to obtain the water supply pressure level and its corresponding supply pressure and time. Next, the average of the water supply pressure data from multiple user nodes is calculated, and the difference is calculated with the corresponding supply pressure of the water supply pressure level to obtain the pipeline pressure loss value corresponding to that level. Then, the water supply pressure level is determined based on real-time water supply time data, yielding the corresponding supply pressure and pipeline pressure loss value. These values ​​are summed to obtain the real-time demand water supply pressure of the water pump. The water pump supply is controlled based on this real-time demand water supply pressure. Furthermore, real-time water supply pressure data from user nodes is acquired using pressure sensors installed at the user nodes. This data is processed to obtain a real-time water supply evaluation index. Finally, a threshold comparison is used to determine whether adjustments to the water supply mode are necessary.

[0138] According to an embodiment of the present invention, the step of acquiring multiple historical water supply data within a preset time period, including water supply time data and corresponding water pump supply pressure data and user node water supply pressure data, and processing the water supply time data and corresponding water pump supply pressure data to obtain the water supply pressure level and corresponding water supply pressure and water supply time, includes:

[0139] The water pump supply pressure data is compared with a preset water supply pressure threshold, wherein the water supply pressure threshold includes a preset first water supply pressure threshold and a preset second water supply pressure threshold, and the preset first water supply pressure threshold is less than the preset second water supply pressure threshold.

[0140] If the water pump supply pressure data is less than the preset first water supply pressure threshold, then the corresponding off-peak water supply pressure level is defined as follows: the average value of the water pump supply pressure data and the corresponding water supply time are respectively the off-peak water supply pressure and off-peak water supply time corresponding to the off-peak water supply pressure level.

[0141] If the water pump supply pressure data is greater than or equal to the preset first water supply pressure threshold and less than the preset second water supply pressure threshold, then the corresponding peak water supply pressure level is: the average value of the water pump supply pressure data and the corresponding water supply time are respectively the peak water supply pressure and peak water supply time corresponding to the peak water supply pressure level.

[0142] If the water pump supply pressure data is greater than or equal to the preset second water supply pressure threshold, then the corresponding peak water supply pressure level is defined as follows: the average value of the water pump supply pressure data and the corresponding water supply time are the peak water supply pressure and peak water supply time corresponding to the peak water supply pressure level, respectively.

[0143] It should be noted that, in order to more accurately control the water pump pressure for water supply, multiple historical water supply data are first acquired based on pressure sensors installed at the water pump outlet and the user's inlet side. These data include water supply time data, corresponding water pump supply pressure data, and user node water supply pressure data within a preset time period. In this embodiment, the preset time period is set to 1 day, and pressure data is acquired every 5 minutes. The acquired multiple water pump supply pressure data are then compared with preset water supply pressure thresholds. The preset water supply pressure thresholds include a first preset water supply pressure threshold and a second preset water supply pressure threshold. In this embodiment, the first preset water supply pressure threshold is set to 0.3 MPa, and the second preset water supply pressure threshold is set to 0.4 MPa. If the pump supply pressure data is lower than the preset first supply pressure threshold, it corresponds to the off-peak supply pressure level. By comparing the threshold values ​​of multiple pump supply pressure data and their corresponding supply times, multiple off-peak supply pressures and their corresponding off-peak supply times can be obtained. For example, if multiple consecutive pump supply pressure data are lower than the preset first supply pressure threshold, with the earliest corresponding time being 22:30 and the latest time being 07:30, and the average value of all the obtained pump supply pressure data is 0.26MPa, then 0.26MPa is the off-peak supply pressure, and 22:30-07:30 is the off-peak supply time. Similarly, multiple off-peak supply pressures and their corresponding off-peak supply times, as well as multiple peak supply pressures and their corresponding peak supply times, can be obtained.

[0144] According to an embodiment of the present invention, the step of processing the water supply pressure data of the user node and the water supply pressure corresponding to the water supply pressure level to obtain the pipeline pressure loss value corresponding to the water supply pressure level includes:

[0145] The average water supply pressure data of the corresponding user nodes is calculated based on the off-peak water supply time, the off-peak water supply time, and the peak water supply time to obtain the actual off-peak water supply pressure, the actual off-peak water supply pressure, and the actual peak water supply pressure on the user side corresponding to the off-peak water supply time, the off-peak water supply time, and the peak water supply time.

[0146] The actual supply pressure during off-peak hours, during off-peak hours, and during peak hours on the user side are processed with the actual supply pressure during off-peak hours, during off-peak hours, and during peak hours to obtain the pressure loss values ​​of the pipeline during off-peak hours, during off-peak hours, and during peak hours, respectively.

[0147] It should be noted that during the water supply implementation process, the pipeline pressure loss value may not be the same for different pressures and different pipeline layouts. In order to accurately obtain the pipeline pressure loss value corresponding to different situations, the average value of the water supply pressure data of multiple user nodes corresponding to the low-peak water supply time, the off-peak water supply time, and the peak water supply time is calculated first. This yields the actual low-peak supply pressure, the actual off-peak supply pressure, and the actual peak supply pressure on the user side corresponding to the low-peak water supply time, the off-peak water supply pressure, and the peak water supply pressure. This is then processed with the low-peak water supply pressure, the off-peak water supply pressure, and the peak water supply pressure to obtain the low-peak pipeline pressure loss value, the off-peak pipeline pressure loss value, and the peak pipeline pressure loss value corresponding to the low-peak water supply time, the off-peak water supply time, and the peak water supply time.

[0148] The formula for calculating the pressure loss value of the pipeline during off-peak hours is as follows:

[0149] ;

[0150] in, This represents the pressure loss value in the pipeline during off-peak hours. To reduce water pressure during off-peak hours, To alleviate the pressure on the user side during off-peak periods;

[0151] The formula for calculating the pressure loss value of the off-peak pipeline is as follows:

[0152] ;

[0153] in, This represents the pressure loss value of the pipeline during off-peak hours. Off-peak water supply pressure, To alleviate the pressure on peak supply to users;

[0154] The formula for calculating the peak pipeline pressure loss value is as follows:

[0155] ;

[0156] in, This represents the peak pipeline pressure loss value. To ensure peak water supply pressure, This addresses the peak supply pressure on the user side.

[0157] According to an embodiment of the present invention, the real-time water supply time point data is obtained, and the water supply time corresponding to the water supply pressure level is processed to obtain the water supply pressure level and the corresponding water supply pressure and pipeline pressure loss value, and then processed to obtain the real-time water supply demand pressure of the water pump, including off-peak water supply demand pressure, off-peak water supply demand pressure and peak water supply demand pressure, including:

[0158] Obtain real-time water supply time point data and compare the real-time water supply time point data with the water supply time corresponding to the water pressure level;

[0159] If the real-time water supply time point is the off-peak water supply time, then the off-peak water supply pressure level is used to calculate the off-peak water supply pressure and the corresponding pipeline pressure loss value to obtain the off-peak water supply demand pressure of the water pump.

[0160] If the real-time water supply time point is the off-peak water supply time, then the off-peak water supply pressure level is used to calculate the off-peak water supply pressure and the corresponding pipeline pressure loss value to obtain the off-peak water supply demand pressure of the water pump.

[0161] If the real-time water supply time point is the peak water supply time, then the peak water supply pressure level is calculated by summing the peak water supply pressure and the corresponding pipeline pressure loss value to obtain the peak water supply demand pressure of the water pump.

[0162] It should be noted that, in order to obtain the appropriate water pump supply pressure for the current time, the real-time water supply time point data is first acquired. Based on the water supply time corresponding to the water supply pressure level, it is determined whether the real-time water supply time point data belongs to the off-peak, normal, or peak water supply period. For example, if the real-time water supply time point is 06:00, which is an off-peak water supply period, the off-peak water supply pressure corresponding to the off-peak water supply pressure level and the pipeline pressure loss value are summed to calculate the off-peak water supply demand pressure of the water pump. For example, if the off-peak water supply pressure is 0.26 MPa and the pipeline pressure loss value is 0.02 MPa, then 0.26 + 0.02 = 0.28 MPa is the off-peak water supply demand pressure corresponding to the real-time water supply time point data. Similarly, the normal and peak water supply demand pressures corresponding to the real-time water supply time point data can be obtained.

[0163] According to an embodiment of the present invention, the step of controlling the water pump to supply water based on real-time demand water pressure and acquiring real-time water pressure data of user nodes, and processing the real-time water pressure data of user nodes to obtain a real-time water supply evaluation index includes:

[0164] Water supply is implemented by controlling the water pump according to real-time demand and water pressure.

[0165] Acquire real-time water supply pressure data from user nodes, and extract peak pressure data and valley pressure data;

[0166] The node pressure variance is calculated based on the real-time water supply pressure data of the user nodes.

[0167] The peak pressure data, valley pressure data, and node pressure variance are input into a preset real-time water supply assessment model for processing to obtain a real-time water supply assessment index.

[0168] It should be noted that after obtaining the real-time demand water supply pressure corresponding to the real-time water supply time point, the water pump is controlled to supply water based on this pressure. Real-time water supply pressure data for user nodes is obtained. First, peak pressure data and valley pressure data are extracted. Then, based on the obtained real-time water supply pressure data from multiple user nodes, the node pressure variance is calculated. For example, if the obtained real-time water supply pressure data for user nodes is 0.25, 0.27, 0.28, 0.28, 0.26, and 0.25 MPa, the extracted peak pressure data is 0.28 MPa, the valley pressure data is 0.25 MPa, and the average value is 0.265 MPa. [(0.26-0.265)] 2 +(0.26-0.265) 2 +(0.26-0.265) 2 +(0.26-0.265) 2 +(0.26-0.265) 2 +(0.26-0.265) 2 ] / 6=0.000158 is the node pressure variance. The peak pressure data, valley pressure data and node pressure variance are input into the preset real-time water supply assessment model for processing to obtain the real-time water supply assessment index.

[0169] The formula for calculating the real-time water supply assessment index is as follows:

[0170] ;

[0171] in, For real-time water supply assessment index, , , These represent peak pressure data, valley pressure data, and nodal pressure variance, respectively. , , The preset characteristic coefficients are obtained by querying the constant pressure water supply control platform.

[0172] According to an embodiment of the present invention, the step of comparing the real-time water supply assessment index with a preset water supply assessment threshold, and controlling the adjustment of the water supply mode based on the comparison result, includes:

[0173] The real-time water supply assessment index is compared with the preset water supply assessment threshold, wherein the preset water supply assessment threshold includes a first preset water supply assessment threshold, a second preset water supply assessment threshold and a third preset water supply assessment threshold, and the first preset water supply assessment threshold is less than the second preset water supply assessment threshold, and the second preset water supply assessment threshold is less than the third preset water supply assessment threshold.

[0174] If the water supply is less than the first preset water supply assessment threshold, the auxiliary water pump will be started simultaneously to supply water.

[0175] If the value is greater than or equal to the first preset water supply assessment threshold and less than the second preset water supply assessment threshold, the auxiliary water pump will not be turned on and the main water pump speed will be automatically adjusted.

[0176] If the value is greater than or equal to the second preset water supply assessment threshold and less than the third preset water supply assessment threshold, no adjustment will be made.

[0177] If the value is greater than or equal to the third preset water supply assessment threshold, the main water pump will be shut down and the auxiliary water pump will be turned on.

[0178] It should be noted that the obtained real-time water supply assessment index is compared with the preset water supply assessment threshold. In this embodiment, the preset water supply assessment threshold is set to (0, 0.5), [0.5, 0.65), [0.65, 0.85), and [0.85, 1], which correspond to simultaneously starting the auxiliary water pump, not starting the auxiliary water pump, automatically adjusting the main water pump speed, not adjusting, and turning off the main water pump and starting the auxiliary water pump, respectively. For example, if the obtained real-time water supply assessment index is 0.4, it indicates that the water supply effect is poor, so the auxiliary water pump is started simultaneously.

[0179] According to an embodiment of the present invention, if the water supply assessment threshold is greater than or equal to a first preset water supply assessment threshold and less than a second preset water supply assessment threshold, then the auxiliary water pump is not activated and the main water pump speed is automatically adjusted. The method further includes:

[0180] The required speed of the main water pump is obtained by querying the preset water supply assessment index and the mapping table between the real-time water supply assessment index and the water pump speed.

[0181] The main water pump supply is controlled according to the required speed of the main water pump.

[0182] It should be noted that, in order to achieve precise control of the water pump, the required speed of the main water pump is obtained by querying the preset water supply assessment index and the water pump speed mapping table based on the obtained real-time water supply assessment index. The preset water supply assessment index and water pump speed mapping table is generated by analyzing a large number of historical samples of water supply assessment index and corresponding water pump speed. After determining the required speed of the main water pump, the main water pump is controlled to supply water.

[0183] According to an embodiment of the present invention, the step of controlling the main water pump to supply water according to the required speed of the main water pump further includes:

[0184] Acquire real-time water supply characteristic data of the main water pump, including flow rate data, head data, and input power;

[0185] The flow rate data, head data, and input power are processed to obtain the real-time water supply efficiency of the main water pump.

[0186] The real-time water supply efficiency of the main water pump is compared with the preset water supply efficiency threshold of the main water pump;

[0187] If the efficiency is less than the preset threshold for main water pump water supply efficiency, an inefficient operation warning will be issued.

[0188] If the value is greater than or equal to the main water pump's water supply efficiency threshold, no action will be taken.

[0189] It should be noted that water pumps are the main energy-consuming equipment in standardized pump stations. In order to meet water supply demand while reducing energy consumption, the efficiency of water pumps should be guaranteed. The main water pump is controlled to supply water according to the determined required speed of the main water pump, and real-time water supply characteristic data of the main water pump, including flow rate data, head data and input power, is obtained. The flow rate data, head data and input power are input into the preset water pump supply efficiency evaluation model for processing to obtain the real-time water supply efficiency of the main water pump.

[0190] The formula for calculating the real-time efficiency of the main water pump in the water supply efficiency evaluation model is as follows:

[0191] ;

[0192] in, Real-time efficiency of the main water pump supply. , , These are flow rate data, head data, and input power, respectively. The preset characteristic coefficients are obtained by querying the constant pressure water supply control platform.

[0193] The obtained real-time water supply efficiency of the main water pump is compared with the preset main water pump water supply efficiency threshold. In this embodiment, the main water pump water supply efficiency threshold is set to (0, 0.8) and [0.8, 1]. The corresponding output is an inefficient operation warning and no adjustment is made. For example, if the obtained real-time water supply efficiency of the main water pump is 0.7, it means that the water pump efficiency is low, so an inefficient operation warning is output. If the obtained real-time water supply efficiency of the main water pump is 0.85, it means that the water pump efficiency is high, so no adjustment is made.

[0194] It is worth mentioning that, according to embodiments of the present invention, it further includes:

[0195] Obtain the real-time pressure value of the municipal water at the preset node before the water pump;

[0196] The real-time pressure value of the municipal water is processed with the preset standard pressure value of the municipal water to obtain the municipal water pressure deviation rate;

[0197] The water pressure deviation rate is compared with a preset water pressure deviation threshold. The preset water pressure deviation threshold includes a first preset water pressure deviation threshold and a second preset water pressure deviation threshold, and the first preset water pressure deviation threshold is less than the second preset water pressure deviation threshold.

[0198] If the pressure deviation is less than the first preset municipal water pressure deviation threshold, the water pump will be shut off.

[0199] If the pressure deviation is greater than or equal to the first preset municipal water pressure deviation threshold and less than the second preset municipal water pressure deviation threshold, a pressure loss warning will be output.

[0200] If the deviation exceeds the second preset municipal water pressure threshold, no adjustment will be made.

[0201] It should be noted that during the water supply process, if problems such as leakage or municipal water outage occur, the water pump may not be able to respond in time, potentially leading to pump damage. Therefore, the real-time municipal water pressure value at a preset node before the water pump is first obtained and processed against the preset municipal water standard pressure value to obtain the municipal water pressure deviation rate. For example, if the real-time municipal water pressure value is 0.38 MPa and the preset municipal water standard pressure value is 0.4 MPa, then (0.4-0.38) / 0.4=0.05 is the municipal water pressure deviation rate. The obtained municipal water pressure deviation rate is then compared with the preset municipal water pressure deviation threshold. In this embodiment, the preset municipal water pressure deviation threshold is set to (0, 0.1), [0.1, 0.2), and [0.2, 1], corresponding to no adjustment, output of pressure loss warning, and control of water pump shutdown. For example, if the obtained municipal water pressure deviation rate is 0.05, it indicates that the deviation is small, so no adjustment is made.

[0202] A third aspect of the present invention provides a readable storage medium storing a program for a constant pressure water supply control method for a standardized pumping station with two power supplies. When the program for the constant pressure water supply control method for a standardized pumping station with two power supplies is executed by a processor, it implements the steps of the constant pressure water supply control method for a standardized pumping station with two power supplies as described in any of the preceding claims.

[0203] This invention discloses a constant pressure water supply control method, system, and medium for a standardized secondary water supply pump station. It obtains and processes multiple historical water supply data points within a preset time period, including water supply time data, corresponding pump water supply pressure data, and user node water supply pressure data, to obtain the water supply pressure level and corresponding water supply pressure and time. Combined with the user node water supply pressure, it obtains the pipeline pressure loss value corresponding to the water supply pressure level. It also obtains and processes real-time water supply time point data to obtain the water supply pressure level, corresponding water supply pressure, and pipeline pressure loss value, thus obtaining the real-time demand water supply pressure of the pump. Water supply is then implemented, and real-time water supply pressure data from user nodes is obtained and processed to obtain a real-time water supply evaluation index. Threshold comparisons are performed, and the water supply mode is adjusted based on the comparison results. This achieves constant pressure water supply and precise control in the secondary water supply system while reducing energy consumption.

[0204] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or components can be combined, or integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be electrical, mechanical, or other forms.

[0205] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units. They may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of this embodiment according to actual needs.

[0206] In addition, in the various embodiments of the present invention, each functional unit can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0207] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0208] Alternatively, if the integrated units of this invention are implemented as software functional modules and sold or used as independent products, they can also be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of this invention, or the parts that contribute to the prior art, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, ROM, RAM, magnetic disks, or optical disks.

Claims

1. A constant pressure water supply control method for a standardized dual-supply pump station, characterized in that, Includes the following steps: Acquire multiple historical water supply data within a preset time period, including water supply time data and corresponding water pump pressure data and user node water supply pressure data. Process the water supply time data and corresponding water pump pressure data to obtain the water supply pressure level and the corresponding water supply pressure and water supply time. The water supply pressure data of the user node and the water supply pressure corresponding to the water supply pressure level are processed to obtain the pipeline pressure loss value corresponding to the water supply pressure level. The system acquires real-time water supply time point data, processes the real-time water supply time point data in conjunction with the water supply time corresponding to the water supply pressure level, obtains the water supply pressure level and the corresponding water supply pressure and pipeline pressure loss value, and processes them to obtain the real-time demand water supply pressure of the water pump, including off-peak water supply demand pressure, flat-peak water supply demand pressure and peak water supply demand pressure. The system controls the water pump to supply water based on the real-time demand and water pressure, and obtains the real-time water pressure data of the user nodes. The system processes the real-time water pressure data of the user nodes to obtain the real-time water supply evaluation index. The real-time water supply assessment index is compared with the preset water supply assessment threshold, and the water supply mode is adjusted according to the comparison result. Acquire multiple historical water supply data points within a preset time period, including water supply time data, corresponding water pump pressure data, and user node water supply pressure data. Process the water supply time data and corresponding water pump pressure data to obtain the water supply pressure level and corresponding water supply pressure and time, including: The water pump supply pressure data is compared with a preset water supply pressure threshold, wherein the water supply pressure threshold includes a preset first water supply pressure threshold and a preset second water supply pressure threshold, and the preset first water supply pressure threshold is less than the preset second water supply pressure threshold. If the water pump supply pressure data is less than the preset first water supply pressure threshold, then the corresponding off-peak water supply pressure level is defined as follows: the average value of the water pump supply pressure data and the corresponding water supply time are respectively the off-peak water supply pressure and off-peak water supply time corresponding to the off-peak water supply pressure level. If the water pump supply pressure data is greater than or equal to the preset first water supply pressure threshold and less than the preset second water supply pressure threshold, then the corresponding peak water supply pressure level is: the average value of the water pump supply pressure data and the corresponding water supply time are respectively the peak water supply pressure and peak water supply time corresponding to the peak water supply pressure level. If the water pump supply pressure data is greater than or equal to the preset second water supply pressure threshold, then the corresponding peak water supply pressure level is determined. The average value of the water pump supply pressure data and the corresponding water supply time are the peak water supply pressure and peak water supply time corresponding to the peak water supply pressure level, respectively. The water supply pressure data of the user node and the water supply pressure corresponding to the water supply pressure level are processed to obtain the pipeline pressure loss value corresponding to the water supply pressure level, including: The average water supply pressure data of the corresponding user nodes is calculated based on the off-peak water supply time, the off-peak water supply time, and the peak water supply time to obtain the actual off-peak water supply pressure, the actual off-peak water supply pressure, and the actual peak water supply pressure on the user side corresponding to the off-peak water supply time, the off-peak water supply time, and the peak water supply time. The actual supply pressure during off-peak hours, during off-peak hours, and during peak hours on the user side are processed with the actual supply pressure during off-peak hours, during off-peak hours, and during peak hours to obtain the pressure loss values ​​of the pipeline during off-peak hours, during off-peak hours, and during peak hours, respectively. The real-time water supply assessment index is compared with a preset water supply assessment threshold, and the water supply mode is adjusted according to the comparison result, including: The real-time water supply assessment index is compared with the preset water supply assessment threshold, wherein the preset water supply assessment threshold includes a first preset water supply assessment threshold, a second preset water supply assessment threshold and a third preset water supply assessment threshold, and the first preset water supply assessment threshold is less than the second preset water supply assessment threshold, and the second preset water supply assessment threshold is less than the third preset water supply assessment threshold. If the water supply is less than the first preset water supply assessment threshold, the auxiliary water pump will be started simultaneously to supply water. If the value is greater than or equal to the first preset water supply assessment threshold and less than the second preset water supply assessment threshold, the auxiliary water pump will not be turned on and the main water pump speed will be automatically adjusted. If the value is greater than or equal to the second preset water supply assessment threshold and less than the third preset water supply assessment threshold, no adjustment will be made. If the value is greater than or equal to the third preset water supply assessment threshold, the main water pump will be shut down and the auxiliary water pump will be turned on. If the value is greater than or equal to the first preset water supply assessment threshold and less than the second preset water supply assessment threshold, the auxiliary water pump will not be activated, and the main water pump speed will be automatically adjusted. This will then include: The required speed of the main water pump is obtained by querying the preset water supply assessment index and the mapping table between the real-time water supply assessment index and the water pump speed. The main water pump supply is controlled according to the required speed of the main water pump. Also includes: Obtain the real-time pressure value of the municipal water at the preset node before the water pump; The real-time pressure value of the municipal water is processed with the preset standard pressure value of the municipal water to obtain the municipal water pressure deviation rate; The water pressure deviation rate is compared with a preset water pressure deviation threshold. The preset water pressure deviation threshold includes a first preset water pressure deviation threshold and a second preset water pressure deviation threshold, and the first preset water pressure deviation threshold is less than the second preset water pressure deviation threshold. If the pressure deviation is less than the first preset municipal water pressure deviation threshold, the water pump will be shut off. If the pressure deviation is greater than or equal to the first preset municipal water pressure deviation threshold and less than the second preset municipal water pressure deviation threshold, a pressure loss warning will be output. If the deviation exceeds the second preset municipal water pressure threshold, no adjustment will be made. Water supply is implemented by controlling the water pump according to real-time demand and water pressure. Acquire real-time water supply pressure data from user nodes, and extract peak pressure data and valley pressure data; The node pressure variance is calculated based on the real-time water supply pressure data of the user nodes. The peak pressure data, valley pressure data, and node pressure variance are input into a preset real-time water supply assessment model for processing to obtain a real-time water supply assessment index.

2. The constant pressure water supply control method for a standardized pumping station with dual water supply according to claim 1, characterized in that, The process involves acquiring real-time water supply time point data, processing the data in conjunction with the water supply time corresponding to the water supply pressure level, obtaining the water supply pressure level and corresponding water supply pressure and pipeline pressure loss value, and then processing this data to obtain the real-time water supply demand pressure of the water pump, including off-peak water supply demand pressure, off-peak water supply demand pressure, and peak water supply demand pressure. Obtain real-time water supply time point data and compare the real-time water supply time point data with the water supply time corresponding to the water pressure level; If the real-time water supply time point is the off-peak water supply time, then the off-peak water supply pressure level is used to calculate the off-peak water supply pressure and the corresponding pipeline pressure loss value to obtain the off-peak water supply demand pressure of the water pump. If the real-time water supply time point is the off-peak water supply time, then the off-peak water supply pressure level is used to calculate the off-peak water supply pressure and the corresponding pipeline pressure loss value to obtain the off-peak water supply demand pressure of the water pump. If the real-time water supply time point is the peak water supply time, then the peak water supply pressure level is calculated by summing the peak water supply pressure and the corresponding pipeline pressure loss value to obtain the peak water supply demand pressure of the water pump.

3. The constant pressure water supply control method for a standardized pumping station with dual water supply according to claim 2, characterized in that, The step of controlling the main water pump's water supply according to the required speed of the main water pump further includes: Acquire real-time water supply characteristic data of the main water pump, including flow rate data, head data, and input power; The flow rate data, head data, and input power are processed to obtain the real-time water supply efficiency of the main water pump. The real-time water supply efficiency of the main water pump is compared with the preset water supply efficiency threshold of the main water pump; If the efficiency is less than the preset threshold for main water pump water supply efficiency, an inefficient operation warning will be issued. If the value is greater than or equal to the main water pump's water supply efficiency threshold, no action will be taken.

4. A constant pressure water supply control system for a standardized pumping station with dual water supply, characterized in that, The system includes a memory and a processor. The memory contains a program for a constant pressure water supply control method for a dual-supply standardized pumping station. When the processor executes the program for the constant pressure water supply control method for a dual-supply standardized pumping station, it performs the following steps: Acquire multiple historical water supply data within a preset time period, including water supply time data and corresponding water pump pressure data and user node water supply pressure data. Process the water supply time data and corresponding water pump pressure data to obtain the water supply pressure level and the corresponding water supply pressure and water supply time. The water supply pressure data of the user node and the water supply pressure corresponding to the water supply pressure level are processed to obtain the pipeline pressure loss value corresponding to the water supply pressure level. The system acquires real-time water supply time point data, obtains the water supply pressure level and corresponding water supply pressure and pipeline pressure loss value based on the real-time water supply time point data, and processes it to obtain the real-time demand water supply pressure of the water pump, including off-peak water supply demand pressure, flat-peak water supply demand pressure and peak water supply demand pressure. The system controls the water pump to supply water based on the real-time demand and water pressure, and obtains the real-time water pressure data of the user nodes. The system processes the real-time water pressure data of the user nodes to obtain the real-time water supply evaluation index. The real-time water supply assessment index is compared with the preset water supply assessment threshold, and the water supply mode is adjusted according to the comparison result. Acquire multiple historical water supply data points within a preset time period, including water supply time data, corresponding water pump pressure data, and user node water supply pressure data. Process the water supply time data and corresponding water pump pressure data to obtain the water supply pressure level and corresponding water supply pressure and time, including: The water pump supply pressure data is compared with a preset water supply pressure threshold, wherein the water supply pressure threshold includes a preset first water supply pressure threshold and a preset second water supply pressure threshold, and the preset first water supply pressure threshold is less than the preset second water supply pressure threshold. If the water pump supply pressure data is less than the preset first water supply pressure threshold, then the corresponding off-peak water supply pressure level is defined as follows: the average value of the water pump supply pressure data and the corresponding water supply time are respectively the off-peak water supply pressure and off-peak water supply time corresponding to the off-peak water supply pressure level. If the water pump supply pressure data is greater than or equal to the preset first water supply pressure threshold and less than the preset second water supply pressure threshold, then the corresponding peak water supply pressure level is: the average value of the water pump supply pressure data and the corresponding water supply time are respectively the peak water supply pressure and peak water supply time corresponding to the peak water supply pressure level. If the water pump supply pressure data is greater than or equal to the preset second water supply pressure threshold, then the corresponding peak water supply pressure level is determined. The average value of the water pump supply pressure data and the corresponding water supply time are the peak water supply pressure and peak water supply time corresponding to the peak water supply pressure level, respectively. The water supply pressure data of the user node and the water supply pressure corresponding to the water supply pressure level are processed to obtain the pipeline pressure loss value corresponding to the water supply pressure level, including: The average water supply pressure data of the corresponding user nodes is calculated based on the off-peak water supply time, the off-peak water supply time, and the peak water supply time to obtain the actual off-peak water supply pressure, the actual off-peak water supply pressure, and the actual peak water supply pressure on the user side corresponding to the off-peak water supply time, the off-peak water supply time, and the peak water supply time. The actual supply pressure during off-peak hours, during off-peak hours, and during peak hours on the user side are processed with the actual supply pressure during off-peak hours, during off-peak hours, and during peak hours to obtain the pressure loss values ​​of the pipeline during off-peak hours, during off-peak hours, and during peak hours, respectively. The real-time water supply assessment index is compared with a preset water supply assessment threshold, and the water supply mode is adjusted according to the comparison result, including: The real-time water supply assessment index is compared with the preset water supply assessment threshold, wherein the preset water supply assessment threshold includes a first preset water supply assessment threshold, a second preset water supply assessment threshold and a third preset water supply assessment threshold, and the first preset water supply assessment threshold is less than the second preset water supply assessment threshold, and the second preset water supply assessment threshold is less than the third preset water supply assessment threshold. If the water supply is less than the first preset water supply assessment threshold, the auxiliary water pump will be started simultaneously to supply water. If the value is greater than or equal to the first preset water supply assessment threshold and less than the second preset water supply assessment threshold, the auxiliary water pump will not be turned on and the main water pump speed will be automatically adjusted. If the value is greater than or equal to the second preset water supply assessment threshold and less than the third preset water supply assessment threshold, no adjustment will be made. If the value is greater than or equal to the third preset water supply assessment threshold, the main water pump will be shut down and the auxiliary water pump will be turned on. If the value is greater than or equal to the first preset water supply assessment threshold and less than the second preset water supply assessment threshold, the auxiliary water pump will not be activated, and the main water pump speed will be automatically adjusted. This will then include: The required speed of the main water pump is obtained by querying the preset water supply assessment index and the mapping table between the real-time water supply assessment index and the water pump speed. The main water pump supply is controlled according to the required speed of the main water pump. Also includes: Obtain the real-time pressure value of the municipal water at the preset node before the water pump; The real-time pressure value of the municipal water is processed with the preset standard pressure value of the municipal water to obtain the municipal water pressure deviation rate; The water pressure deviation rate is compared with a preset water pressure deviation threshold. The preset water pressure deviation threshold includes a first preset water pressure deviation threshold and a second preset water pressure deviation threshold, and the first preset water pressure deviation threshold is less than the second preset water pressure deviation threshold. If the pressure deviation is less than the first preset municipal water pressure deviation threshold, the water pump will be shut off. If the pressure deviation is greater than or equal to the first preset municipal water pressure deviation threshold and less than the second preset municipal water pressure deviation threshold, a pressure loss warning will be output. If the deviation exceeds the second preset municipal water pressure threshold, no adjustment will be made. Water supply is implemented by controlling the water pump according to real-time demand and water pressure. Acquire real-time water supply pressure data from user nodes, and extract peak pressure data and valley pressure data; The node pressure variance is calculated based on the real-time water supply pressure data of the user nodes. The peak pressure data, valley pressure data, and node pressure variance are input into a preset real-time water supply assessment model for processing to obtain a real-time water supply assessment index.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a constant pressure water supply control method program for a standardized pumping station with two power supplies. When the program is executed by a processor, it implements the steps of a constant pressure water supply control method for a standardized pumping station with two power supplies as described in any one of claims 1 to 3.

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