Pump sewage system rainwater inflow and infiltration monitoring and evaluating method and device

Abstract

The invention relates to the technical field of pump sewage system inflow and infiltration evaluation, and discloses a method and a device for monitoring and evaluating rainwater inflow and infiltration of a pump sewage system. The method comprises the following steps: acquiring gross rainfall in a target rainfall event process of a monitored pump sewage system area, liquid levels of pipeline monitoring points before water inflow of a pump station and a sewage plant under the target rainfall event, liquid levels on dry days in the same season, pumping and drainage water amount of the pump station and water inflow of the sewage plant; based on the liquid level volume curve in combination with the liquid level and flow monitoring data, the rainwater inflow and infiltration amount under the rainfall event of the sewage system with the pump station as the partition is obtained step by step; based on the total rainwater inflow and infiltration amount, the gross rainfall and the water collection area of the upstream pipe network of the monitoring point, the ratio of the net runoff rainfall to the total rainfall amount is calculated, the total rainwater inflow and infiltration amount is equivalent to the water collection area of the sewage pipe network with the pump station as the partition, and the two calculated values serve as evaluation indexes. By analyzing the inflow and infiltration conditions of the water collecting areas of all the pump stations, the rainwater inflow and infiltration analysis accuracy of the areas of the sewage plant is improved.

Description

Technical Field

[0001] The invention relates to the technical field of inflow and infiltration assessment of a pump sewage system, and in particular to a method and device for monitoring and assessing rainwater inflow and infiltration of a pump sewage system. Background Art

[0002] "The black and smelly water is in the water, but the root cause is on the shore. The key is the outlet, and the core is the pipe network." Comprehensive improvement of the water environment is a complex system project. Without a complete sewage collection network, it is impossible to effectively collect sewage, and it is even more difficult to manage urban sewage. At present, the sewage pipe network system has problems such as mixed and wrong connections of rainwater and sewage pipes, damaged and blocked pipe networks, which lead to infiltration during rainfall, increasing the load of the sewage pipe network system and sewage treatment plants, reducing system capacity, and reducing sewage treatment efficiency, and even endangering the safe operation of facilities. At present, drainage pipe level monitoring is relatively reliable, but the reliability and accuracy of drainage pipe flow monitoring are relatively low. It is difficult to conduct rainfall inflow intrusion analysis through pipe flow monitoring. Summary of the invention

[0003] In view of this, the present invention provides a method and device for monitoring and evaluating rainwater inflow and infiltration in a pumping sewage system to solve the problem that the existing monitoring data cannot accurately reflect the rainwater inflow and infiltration in the pumping sewage system, and can conveniently and quickly evaluate the rainwater inflow and infiltration of the sewage pipe network system between each level of pumping stations and the pipe network system above the entire sewage treatment plant.

[0004] In a first aspect, the present invention provides a method for monitoring and assessing rainwater inflow and infiltration in a pumped sewage system, the method comprising:

[0005] Obtain the gross rainfall data of the target rainfall event process in the monitoring pump sewage system area, the liquid level change data of the monitoring points of the pump station and the pipeline before the sewage treatment plant under the target rainfall event, and the liquid level change data on the dry day in the same season as the rainfall event, the pumping and drainage volume of the pump station, and the water inflow change data of the sewage treatment plant;

[0006] Based on the liquid level volume curve of the pipe network system upstream of the monitoring point, combined with the liquid level change data during rainfall, the liquid level change data on dry days in the same season, the pumping and drainage volume of the pumping station, and the water inflow change data of the sewage plant, the total amount of rainwater inflow and infiltration under the rainfall event of the sewage system divided by the pumping station is obtained step by step;

[0007] Based on the total amount of rainwater inflow and infiltration, the gross rainfall data of the target rainfall event process and the water collection area of ​​the pipe network upstream of the monitoring point, the ratio of the total amount of rainwater inflow and infiltration to the net rainfall generated by the sewage pipe network water collection area divided by the pump station to the total rainfall is calculated;

[0008] The total amount of rainwater inflow and infiltration and the ratio of the total amount of rainwater inflow and infiltration to the net rainfall generated in the sewage pipe network receiving area divided by the pumping station to the total rainfall are used as indicators to evaluate the rainwater inflow and infiltration of the pumped sewage system.

[0009] The rainwater inflow and infiltration monitoring and assessment method for a pumped sewage system provided in an embodiment of the present invention utilizes existing rainfall, liquid level and pump station flow monitoring, or deploys the above monitoring equipment, and through a low-cost investment method, analyzes the inflow and infiltration conditions of each pump station water receiving area, accurately identifies the rainfall inflow and infiltration indicators of the sewage pipe network divided by pump stations, and improves the precision and accuracy of rainwater inflow and infiltration analysis in the sewage plant area.

[0010] In an optional embodiment, the liquid level volume curve of the pipe network system upstream of the monitoring point is combined with the liquid level change data during rainfall, the liquid level change data on dry days in the same season, the pumping and drainage volume of the pumping station, and the water inflow change data of the sewage treatment plant to obtain the total amount of rainwater inflow and infiltration under the rainfall event in the sewage system with the pumping station as the partition, including:

[0011] Based on the liquid level change data of the monitoring points during the rainfall event and the liquid level volume curve of the upstream pipe network system, the storage water volume of the sewage pumping station and the upstream pipe network system of the sewage treatment plant at the end of the rainfall event is obtained;

[0012] The average storage water volume on dry days is obtained based on the real-time change data of the liquid level on dry days in the same season as the rainfall event;

[0013] The difference between the storage water volume of the sewage pumping station or the upstream pipe network system of the sewage treatment plant at the end of the rainfall event and the average storage water volume on dry days, the drainage volume of the pumping station or the water inflow volume of the sewage treatment plant during the rainfall event, and the drainage volume of the pumping station or the water inflow volume of the sewage treatment plant on dry days in the same period as the rainfall event are used to obtain the total amount of rainwater inflow and infiltration in the upstream pipe network system of the first-level sewage pumping station, the pipe network system between the n-1-level pumping station (1 < n ≤ N, N ≥ 2 is the total number of pumping stations in the sewage treatment plant system) and the last-level pumping station and the sewage treatment plant.

[0014] The total amount of rainwater inflow and infiltration of the first-level pumping station, the total amount of rainwater inflow and infiltration of the pipe network system between the n-level pumping station and the n-1-level pumping station, and the total amount of rainwater inflow and infiltration of the pipe network system between the last-level pumping station and the sewage treatment plant are added up to obtain the total amount of rainwater inflow and infiltration of the entire sewage treatment plant system.

[0015] The embodiment of the present invention gradually evaluates the total amount of rainwater inflow and infiltration in the first-level pumping station pipe network system, the total amount of rainwater inflow and infiltration in the pipe network system between each level of pumping station and the previous level of pumping station, and the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system through rainwater inflow and infiltration, and improves the precision and accuracy of rainwater inflow and infiltration assessment in the sewage treatment plant area by analyzing the inflow and infiltration conditions of the water receiving areas between each level of pumping stations.

[0016] In an optional implementation, the total amount of rainwater inflow and infiltration in the pipe network system upstream of the first-stage pumping station is calculated by the following formula:

[0017] W 入流入渗，1 =W w，1 +W p,雨,1 -W p,旱,1

[0018] Where W 入流入渗,1 is the total amount of rainwater inflow and infiltration in the pipe network system upstream of the first-level pumping station, W w,1 The difference between the storage water volume of the upstream pipe network system of the sewage pumping station at the end of the rainfall event and the average storage water volume on dry days; W p,雨,1 W is the drainage volume of the first-level pumping station during the rainfall event; p,旱,1 The amount of water pumped by the first-stage pumping station on a dry day in the same time period as the rainfall event;

[0019] The total amount of rainwater inflow and infiltration in the pipe network system between the n-level pumping station and the n-1-level pumping station is calculated by the following formula:

[0020] W 入流入渗,n =W w,n -W w,n-1 +(W p,雨,n -W p,旱,n )-(W p,雨,n-1 -W p,旱,n-1 )

[0021] Where W 入流入渗,n is the total amount of rainwater inflow and infiltration in the pipe network system between the n-level pumping station and the n-1-level pumping station; W w,n W is the difference between the storage water volume of the upstream pipe network system of the n-level pumping station at the end of the rainfall event and the average storage water volume on dry days; w,n-1 W is the sum of the difference between the storage water volume of the upstream pipe network system of all n-1 level pumping stations that have upstream and downstream connections with level n and the average storage water volume on dry days at the end of the rainfall event; p,雨,n W is the discharge volume of the n-level pumping station in the rainfall event; p,雨,n-1 W is the sum of the pumping and drainage volumes of all n-1 level pumping stations that have upstream and downstream connections with level n during a rainfall event; p,旱,n W is the drainage volume of the n-level pumping station on a dry day in the same period as the rainfall event; p,旱,n-1 The drainage volume of the n-1 level pumping station that has an upstream and downstream relationship with the n level on a dry day in the same time period as the rainfall event;

[0022] The total amount of rainwater inflow and infiltration in the pipe network system between the final pumping station and the sewage treatment plant is calculated by the following formula:

[0023] W 入流入渗,s =W w,s -W w,末级 +(W 雨,s -W旱,s )-(W p,雨,末级 -W p,旱，末级 )

[0024] Where W 入流入渗,s is the total amount of rainwater inflow and infiltration in the pipe network system between the final pumping station and the sewage treatment plant; W w,s W is the difference between the storage water volume of the upstream pipe network system of the sewage treatment plant at the end of the rainfall event and the average storage water volume on dry days; w,末级 It is the sum of the difference between the storage water volume of the upstream pipe network system of all the final pumping stations at the end of the rainfall event and the average storage water volume on dry days; W 雨,s is the water inflow to the sewage treatment plant during the rainfall event; W p,雨,末级 W is the sum of the pumping and drainage volumes of all the final pumping stations in the rainfall event; 旱,s W is the water inflow to the sewage treatment plant on a dry day in the same period as the rainfall event; p,旱,末级 It is the amount of water pumped by all terminal pumping stations on dry days in the same time period as the rainfall event.

[0025] In an optional embodiment, the total amount of rainwater inflow and infiltration in the entire system of the sewage treatment plant is calculated by the following formula:

[0026]

[0027] Where W 入流入渗 is the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system; W 入流入渗,1,j is the total inflow and infiltration of the upstream pipe network system of the jth pumping station in the first-level pumping station, 1≤j≤p, p≥1 is the number of first-level pumping stations; W 入流入渗,n,k is the kth pumping station in the nth pumping station, the total inflow and infiltration of the pipe network system between the nth and n-1th pumping stations, 0≤k≤q, q≥0 is the number of nth pumping stations; W 入流入渗,s It is the total amount of rainwater inflow and infiltration in the pipe network system between the final pumping station and the sewage treatment plant.

[0028] The embodiment of the present invention obtains the amount of water stored in the pipeline system through the water level process of the monitoring point and the water level volume curve technology of the pipe network system upstream of the monitoring point, and calculates the rainwater inflow and infiltration of the sewage system under rainfall events in combination with the pumping capacity of the pumping station, the water inflow of the sewage treatment plant and its flow changes on dry days, so as to solve the problem that the existing inspection well flow monitoring data cannot reflect the rainwater inflow and infiltration.

[0029] In an optional implementation, the calculation of the ratio of the total amount of rainwater inflow and infiltration to the net rainfall generated by the sewage pipe network water collection area divided by the pumping station to the total amount of rainfall based on the total amount of rainwater inflow and infiltration, the gross rainfall data of the target rainfall event process and the water collection area of ​​the pipe network upstream of the monitoring point includes:

[0030] Based on the total amount of rainwater inflow and infiltration of the first-level sewage pumping station, the water collection area of ​​the upstream pipe network of the pipeline monitoring point before the water inlet of the first-level sewage pumping station, and the gross rainfall of the entire rainfall event, the ratio of the total amount of rainwater inflow and infiltration of the first-level sewage pumping station to the net rainfall generated by the water collection area of ​​the upstream pipe network of the pumping station to the total rainfall is obtained;

[0031] Based on the upstream pipe network water collection area of ​​the pipeline monitoring point before water inflow of the upper-level pumping station and the current-level pumping station, the gross rainfall of the entire rainfall event, and the total amount of rainwater inflow and infiltration in the pipe network system between the current-level and upper-level pumping stations, the ratio of the total amount of rainwater inflow and infiltration in the pipe network system between the current-level and upper-level pumping stations to the net rainfall generated by the water collection area of ​​the pipe network system between the current-level and upper-level pumping stations to the total rainfall is obtained;

[0032] Based on the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system, the gross rainfall of the entire rainfall event and the upstream pipe network collection area of ​​the pipeline monitoring point before the sewage treatment plant water inlet, the ratio of the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system to the net rainfall produced by the upstream pipe network collection area of ​​the sewage treatment plant to the total rainfall is obtained.

[0033] The embodiment of the present invention gradually evaluates the ratio of the total amount of rainwater inflow and infiltration in the sewage system above the first-level pumping station to the net rainfall generated by the water receiving area of ​​the upstream pipe network of the pumping station to the total rainfall, the ratio of the total amount of rainwater inflow and infiltration in the pipe network system between each level of pumping station and the previous level of pumping station to the net rainfall generated by the water receiving area of ​​this section of the pipe network system to the total rainfall, and the ratio of the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system to the net rainfall generated by the water receiving area of ​​the sewage treatment plant to the total rainfall. By analyzing the inflow and infiltration conditions of the water receiving area between each level of pumping stations, the precision and accuracy of the rainwater inflow and infiltration assessment in the sewage treatment plant area is improved.

[0034] In an optional implementation, the total amount of rainwater inflow and infiltration at the first-level sewage pumping station is equivalent to the ratio η1 of the net rainfall produced in the water collection area of ​​the upstream pipe network of the pumping station to the total rainfall, which is calculated by the following formula:

[0035] η1=W 入流入渗,1 / (F P,1 ·P)

[0036] In the formula, F P，1 is the water collection area of ​​the upstream pipe network of the pipeline monitoring point before the first-level sewage pumping station inlet, and P is the gross rainfall of the entire rainfall event monitored by the rainfall point;

[0037] The total amount of rainwater inflow and infiltration in the pipe network system between the n-1-level pumping station is equivalent to the ratio of the net rainfall produced by the pipe network water collection area between the n-1-n-level pumping stations to the total rainfall η n Calculated by the following formula:

[0038] η n =W 入流入渗,n / ((FP,n -F P,n-1 )·P)

[0039] In the formula, F P,n、 F P,n-1 They are the water collection area of ​​the upstream pipe network of the monitoring point of the pipeline before water inlet of the n-1-level sewage pump station which has upstream and downstream connections with the n-level;

[0040] The total amount of rainwater inflow and infiltration in the entire sewage treatment plant system is equivalent to the ratio of the net rainfall produced by the upstream pipe network of the sewage treatment plant to the total rainfall, η, which is calculated by the following formula:

[0041] η=W 入流入渗 / (F·P)

[0042] Where F is the water collection area of ​​the upstream pipe network of the sewage treatment plant.

[0043] In a second aspect, the present invention provides a rainwater inflow and infiltration monitoring and evaluation device for a pump sewage system, the device comprising:

[0044] A monitoring data acquisition module is used to acquire the gross rainfall data of the target rainfall event process in the monitoring pump sewage system area, the liquid level change data of the monitoring points of the pump station and the pipeline before the sewage treatment plant under the target rainfall event, and the liquid level change data on the dry day in the same season as the rainfall event, the pumping and drainage volume of the pump station, and the water inflow change data of the sewage treatment plant;

[0045] The total amount of rainwater inflow and infiltration calculation module is used to obtain the total amount of rainwater inflow and infiltration under the rainfall event of the sewage system divided by the pumping station in a step-by-step manner based on the liquid level volume curve of the pipe network system upstream of the monitoring point, combined with the liquid level change data during the rainfall period, the liquid level change data on dry days in the same season, the pumping and drainage volume of the pumping station, and the water inflow change data of the sewage plant;

[0046] A calculation module for the ratio of the total amount of rainwater inflow and infiltration equivalent to the net rainfall generated by the sewage pipe network water collection area divided by the pump station to the total rainfall, which is used to calculate the ratio of the total amount of rainwater inflow and infiltration equivalent to the net rainfall generated by the sewage pipe network water collection area divided by the pump station to the total rainfall based on the total amount of rainwater inflow and infiltration, the gross rainfall data of the target rainfall event process and the water collection area of ​​the pipe network upstream of the monitoring point;

[0047] The rainwater inflow and infiltration assessment module is used to evaluate the rainwater inflow and infiltration of the pump sewage system by taking the total amount of rainwater inflow and infiltration and the ratio of the total amount of rainwater inflow and infiltration to the net rainfall generated in the sewage pipe network receiving area divided by the pump station to the total rainfall as indicators.

[0048] In a third aspect, the present invention provides a computer device, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the method for monitoring and evaluating rainwater inflow and infiltration in a pump sewage system according to the first aspect or any corresponding embodiment thereof by executing the computer instructions.

[0049] In a fourth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the method for monitoring and evaluating rainwater inflow and infiltration in a pump sewage system according to the first aspect or any corresponding embodiment thereof.

[0050] In a fifth aspect, the present invention provides a computer program product, comprising computer instructions for causing a computer to execute the method for monitoring and assessing rainwater inflow and infiltration in a pump sewage system according to the first aspect or any corresponding embodiment thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 is a flow chart of a method for monitoring and assessing rainwater inflow and infiltration in a pumped sewage system according to an embodiment of the present invention;

[0053] Figure 2 is a schematic diagram of monitoring point locations according to an embodiment of the present invention;

[0054] Figure 3 is a schematic diagram of a pipe network liquid level volume curve according to an embodiment of the present invention;

[0055] Figure 4 is a structural block diagram of a rainwater inflow and infiltration monitoring and evaluation device for a pump sewage system according to an embodiment of the present invention;

[0056] Figure 5 It is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0058] At present, the liquid level monitoring of drainage pipes is relatively reliable, but the reliability and accuracy of flow monitoring in drainage pipes are relatively low, and it is difficult to carry out rainfall inflow intrusion analysis through flow monitoring in pipes. In the pumped sewage system, the flow monitoring data of the sewage pump station automatic control system is accurate. Based on this data, a rainwater inflow and infiltration monitoring and evaluation method for the pumped sewage system can be provided to solve the problem that the rainwater inflow and infiltration evaluation relies on high-cost pipe network detection and high-density, low-precision flow monitoring methods. This evaluation method borrows the existing rainfall, liquid level and pump station flow monitoring, or deploys the above monitoring equipment, and realizes accurate identification of the rainfall inflow intrusion index of the upstream pipe network of the pump station through a low-cost investment method.

[0059] In this embodiment, a method for monitoring and evaluating rainwater inflow and infiltration in a pump sewage system is provided. Figure 1 FIG. 1 is a flow chart of a method for monitoring and evaluating rainwater inflow and infiltration in a pump sewage system according to an embodiment of the present invention. Figure 1 As shown, the process includes the following steps:

[0060] Step S101, obtain the gross rainfall data of the target rainfall event process in the monitoring pump sewage system area, the liquid level change data of the pipeline monitoring points before the pump station and the sewage treatment plant under the target rainfall event, and the liquid level change data on the dry day in the same season as the rainfall event, the pumping and drainage volume of the pump station, and the sewage treatment plant inlet volume change data.

[0061] Specifically, the liquid level process of the sewage pipe network system fluctuates significantly with rainfall during rainfall, indicating that the inflow and infiltration problems of the sewage system are more significant during rainfall, but there is no obvious regularity in the flow process changes, such as Figure 2 As shown, the embodiment of the present invention arranges reasonable monitoring points, arranges rainfall monitoring points (P) near the area to monitor the regional rainfall process and obtain the gross rainfall data of the rainfall process; arranges liquid level monitoring points (W) at appropriate locations in front of the pump station and sewage treatment plant to monitor the changes in the liquid level of the pipeline monitoring points before the water inlet of the pump station and sewage treatment plant; arranges flow monitoring points (Q) at the outlet of the pump station to monitor the change data of the pumping and drainage volume of the pump station; at the same time, sewage treatment plants generally have water inlet flow monitoring, which is not added here. The real-time changes in the liquid level on dry days in the same season as the rainy day are obtained during the monitoring process, which is used to calculate the average storage water volume on dry days in the subsequent evaluation indicators.

[0062] Step S102, based on the liquid level volume curve of the upstream pipe network system of the monitoring point, combined with the liquid level change data during rainfall, the liquid level change data on dry days in the same season, the pumping and drainage volume of the pumping station, and the water inflow change data of the sewage treatment plant, the total amount of rainwater inflow and infiltration under rainfall events in the sewage system divided by pumping stations is obtained step by step.

[0063] Specifically, the process includes the following:

[0064] A1, based on the liquid level change data of the monitoring point during the rainfall event and the liquid level volume curve of the upstream pipe network system, the storage water volume of the sewage pumping station and the upstream pipe network system of the sewage treatment plant at the end of the rainfall event is obtained; Figure 3 The figure shows the liquid level volume curve of the pipe network. The liquid level change data of the monitoring points during rainfall are substituted into the liquid level volume curve of the pipe network to obtain the corresponding storage water volume.

[0065] A2, based on the real-time change data of the liquid level on dry days in the same season as the rainfall event, the average storage water volume on dry days is obtained; specifically, the storage water volume on dry days is obtained by combining the liquid level change data on dry days in the same season as the rainfall event with the liquid level volume curve, and the average value is taken to obtain the average storage water volume on dry days.

[0066] A3. The total amount of rainwater inflow and infiltration in the upstream pipe network system of the first-level sewage pumping station, the pipe network system between the n-level pumping station and the n-1-level pumping station, and the pipe network system between the last pumping station and the sewage treatment plant are obtained by using the difference between the storage water volume of the sewage pumping station or the upstream pipe network system of the sewage treatment plant at the end of the rainfall event and the average storage water volume on dry days, the drainage volume of the pumping station or the inflow volume of the sewage treatment plant during the rainfall event, and the drainage volume of the pumping station or the inflow volume of the sewage treatment plant during the same period as the rainfall event. Specifically, the total amount of rainwater inflow and infiltration in the upstream pipe network system of the first-level sewage pumping station is calculated by the following formula:

[0067] W 入流入渗，1 =W w，1 +W p,雨,1 -W p,旱,1

[0068] Where W 入流入渗,1 is the total amount of rainwater inflow and infiltration in the pipe network system upstream of the first-level pumping station, W w,1 The difference between the storage water volume of the upstream pipe network system of the sewage pumping station at the end of the rainfall event and the average storage water volume on dry days; W p,雨,1 W is the amount of water pumped by the pumping station during rainfall events; p,旱,1 It is the amount of water pumped by the pumping station on dry days during the same period as the rainfall event.

[0069] The total amount of rainwater inflow and infiltration in the pipe network system between the n-level pumping station and the n-1-level pumping station is calculated by the following formula:

[0070] W 入流入渗,n =Ww,n -W w,n-1 +(W p,雨,n -W p,旱,n )-(W p,雨,n-1 -W p,旱,n-1 )

[0071] Where W 入流入渗,n is the total amount of rainwater inflow and infiltration in the pipe network system between the n-level pumping station and the n-1-level pumping station; W w,n W is the difference between the storage water volume of the upstream pipe network system of the n-level pumping station at the end of the rainfall event and the average storage water volume on dry days; w,n-1 W is the sum of the difference between the storage water volume of the upstream pipe network system of all n-1 level pumping stations that have upstream and downstream connections with level n and the average storage water volume on dry days at the end of the rainfall event; p,雨,n W is the discharge volume of the n-level pumping station in the rainfall event; p,雨,n-1 W is the sum of the pumping and drainage volumes of all n-1 level pumping stations that have upstream and downstream connections with level n during a rainfall event; p,旱,n W is the drainage volume of the n-level pumping station on a dry day in the same period as the rainfall event; p,旱,n-1 It is the drainage volume of the n-1 level pumping station that has an upstream and downstream relationship with the n level pumping station during the dry day in the same time period as the rainfall event.

[0072] The total amount of rainwater inflow and infiltration in the pipe network system between the final pumping station and the sewage treatment plant is calculated by the following formula:

[0073] W 入流入渗,s =W w,s -W w,末级 +(W 雨,s -W 旱,s )-(W p,雨,末级 -W p,旱，末级 )

[0074] Where W 入流入渗,s is the total amount of rainwater inflow and infiltration in the pipe network system between the final pumping station and the sewage treatment plant; W w,s W is the difference between the storage water volume of the upstream pipe network system of the sewage treatment plant at the end of the rainfall event and the average storage water volume on dry days; w,末级 It is the sum of the difference between the storage water volume of the upstream pipe network system of all the final pumping stations at the end of the rainfall event and the average storage water volume on dry days; W 雨,s is the water inflow to the sewage treatment plant during the rainfall event; W p,雨,末级 W is the sum of the pumping and drainage volumes of all the final pumping stations in the rainfall event; 旱,s W is the water inflow to the sewage treatment plant on a dry day in the same period as the rainfall event; p,旱,末级 It is the amount of water pumped by all terminal pumping stations on dry days in the same time period as the rainfall event.

[0075] It should be noted that when the total number of pumping stations is 1, only W 入流入渗，1 and W入流入渗，s .

[0076] A4: The total amount of rainwater inflow and infiltration of the first-level pumping station, the total amount of rainwater inflow and infiltration of the pipe network system between the n-level pumping station and the n-1-level pumping station, and the total amount of rainwater inflow and infiltration of the pipe network system between the last-level pumping station and the sewage treatment plant are added up as the total amount of rainwater inflow and infiltration of the entire sewage treatment plant system.

[0077] The total amount of rainwater inflow and infiltration in the entire sewage treatment plant system is calculated by the following formula:

[0078]

[0079] Where W 入流入渗 is the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system; W 入流入渗,1,j is the total inflow and infiltration of the upstream pipe network system of the jth pumping station in the first-level pumping station, 1≤j≤p, p≥1 is the number of first-level pumping stations; W 入流入渗,n,k is the kth pumping station in the nth pumping station, the total inflow and infiltration of the pipe network system between the nth and n-1th pumping stations, 0≤k≤q, q≥0 is the number of nth pumping stations; W 入流入渗,s It is the total amount of rainwater inflow and infiltration in the pipe network system between the final pumping station and the sewage treatment plant.

[0080] Step S103, based on the total amount of rainwater inflow and infiltration, the gross rainfall data of the target rainfall event process and the water collection area of ​​the pipe network upstream of the monitoring point, calculate the ratio of the total amount of rainwater inflow and infiltration to the net rainfall generated by the sewage pipe network water collection area divided by the pump station to the total amount of rainfall. Specifically including:

[0081] B1, based on the total amount of rainwater inflow and infiltration of the first-level sewage pumping station, the upstream pipe network water collection area of ​​the pipeline monitoring point before the water inlet of the first-level sewage pumping station, and the gross rainfall of the entire rainfall event, the ratio of the total amount of rainwater inflow and infiltration of the first-level sewage pumping station to the net rainfall generated by the upstream pipe network water collection area of ​​the pumping station to the total rainfall is obtained; specifically, the ratio of the total amount of rainwater inflow and infiltration of the first-level sewage pumping station to the net rainfall generated by the upstream pipe network water collection area of ​​the pumping station to the total rainfall, η1, is calculated by the following formula:

[0082] η1=W 入流入渗,1 / (F P,1 ·P)

[0083] In the formula, F P,1 is the water collection area of ​​the upstream pipe network of the pipeline monitoring point before the first-level sewage pumping station, and P is the gross rainfall of the entire rainfall event monitored by the rainfall point.

[0084] B2, based on the upstream pipe network receiving area of ​​the pipeline monitoring point before water inlet between the n-level pumping station and the n-1-level pumping station, the gross rainfall of the entire rainfall event and the total amount of rainwater inflow and infiltration in the pipe network system between the n-level pumping station and the n-1-level pumping station, the total amount of rainwater inflow and infiltration between the n-level pumping station and the n-1-level pumping station is equivalent to the ratio of the net rainfall generated by the pipe network system receiving area between the n-level pumping station and the n-1-level pumping station to the total rainfall.

[0085] Specifically, the total amount of rainwater inflow and infiltration in the sewage system between the n-level pumping station and the n-1-level pumping station is equivalent to the ratio of the net rainfall produced by the water collection area of ​​the pipe network system between the n-level pumping station and the n-1-level pumping station to the total rainfall η n , calculated by the following formula:

[0086] η n =W 入流入渗,n / ((F P,n -F P,n-1 )·P)

[0087] In the formula, F P,n、 F P,n-1 They are the water collection areas of the upstream pipe network at the n-1 level sewage pump station pre-intake pipeline monitoring point that has upstream and downstream connections with the n-1 level.

[0088] B3, based on the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system, the gross rainfall of the entire rainfall event and the upstream pipe network water collection area of ​​the pipeline monitoring point before the sewage treatment plant water inlet, the ratio of the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system to the net rainfall produced by the upstream pipe network water collection area of ​​the sewage treatment plant to the total rainfall is obtained.

[0089] Specifically, the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system is equivalent to the ratio of the net rainfall produced by the upstream pipe network of the sewage treatment plant to the total rainfall, η, which is calculated by the following formula:

[0090] η=W 入流入渗 / (F·P)

[0091] Where F is the water collection area of ​​the upstream pipe network of the sewage treatment plant.

[0092] Step S104, taking the total amount of rainwater inflow and infiltration, and the ratio of the total amount of rainwater inflow and infiltration to the net rainfall generated in the sewage pipe network receiving area divided by the pumping station to the total rainfall as indicators, evaluate the rainwater inflow and infiltration of the pump sewage system.

[0093] The rainwater inflow and infiltration monitoring and assessment method for a pumped sewage system provided by the present invention utilizes existing rainfall, liquid level and pump station flow monitoring, or deploys the above monitoring equipment, and through a low-cost investment method, analyzes the inflow and infiltration conditions of the water collection areas between each level of pump stations, accurately identifies the rainfall inflow intrusion index of the sewage network divided by pump stations, and improves the precision and accuracy of rainwater inflow and infiltration analysis in the sewage plant area.

[0094] In this embodiment, a rainwater inflow and infiltration monitoring and evaluation device for a pump sewage system is also provided. The device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made are not repeated here. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0095] This embodiment provides a rainwater inflow and infiltration monitoring and evaluation device for a pump sewage system. Figure 4 As shown, including:

[0096] The monitoring data acquisition module 401 is used to obtain the gross rainfall data of the target rainfall event process in the monitoring pump sewage system area, the liquid level change data of the pipeline monitoring points before the pump station and the sewage treatment plant under the target rainfall event, and the liquid level change data on the dry day in the same season as the rainfall event, the pumping and drainage volume of the pump station, and the sewage treatment plant inlet volume change data.

[0097] The total amount of rainwater inflow and infiltration calculation module 402 is used to obtain the total amount of rainwater inflow and infiltration under the rainfall event for the sewage system divided by pumping stations in a step-by-step manner based on the liquid level volume curve of the pipe network system upstream of the monitoring point, combined with the liquid level change data during rainfall, the liquid level change data on dry days in the same season, the pumping and drainage volume of the pumping station, and the water inflow change data of the sewage treatment plant.

[0098] A calculation module 403 for the ratio of the total amount of rainwater inflow and infiltration to the net rainfall generated in the sewage pipe network receiving area divided by pumping stations to the total rainfall is used to calculate the ratio of the total amount of rainwater inflow and infiltration to the net rainfall generated in the sewage pipe network receiving area divided by pumping stations to the total rainfall based on the total amount of rainwater inflow and infiltration, the gross rainfall data of the target rainfall event process and the pipe network receiving area upstream of the monitoring point.

[0099] The rainwater inflow and infiltration assessment module 404 is used to assess the rainwater inflow and infiltration of the pumped sewage system by taking the total amount of rainwater inflow and infiltration and the ratio of the total amount of rainwater inflow and infiltration to the net rainfall generated in the sewage pipe network receiving area divided by the pump station to the total rainfall as indicators.

[0100] In some optional implementations, the rainwater inflow and infiltration total amount calculation module 402 includes:

[0101] The first calculation unit is used to obtain the storage water volume of the upstream pipe network system of the sewage pumping station at the end of the rainfall event based on the liquid level change data of the monitoring point during the rainfall event and the liquid level volume curve of the upstream pipe network system;

[0102] The second calculation unit is used to obtain the average storage water volume on dry days based on the real-time change data of the liquid level on dry days in the same season as the rainfall event;

[0103] The third calculation unit is used to obtain the total amount of rainwater inflow and infiltration in the upstream pipe network system of the first-level sewage pumping station, the pipe network system between the n-1-level pumping station (1 < n ≤ N, N ≥ 2 is the total number of pumping stations in the sewage plant system) and the pipe network system between the last-level pumping station and the sewage plant by using the difference between the storage water volume of the sewage pumping station or the upstream pipe network system of the sewage plant at the end of the rainfall event and the average storage water volume on dry days, the pumping water volume of the pumping station or the water inflow of the sewage plant during the rainfall event, and the pumping water volume of the pumping station or the water inflow of the sewage plant on dry days in the same time period as the rainfall event;

[0104] The fourth calculation unit is used to add up the total amount of rainwater inflow and infiltration of the first-level pumping station, the total amount of rainwater inflow and infiltration of the pipe network system between the n-level pumping station and the n-1-level pumping station, and the total amount of rainwater inflow and infiltration of the pipe network system between the last-level pumping station and the sewage treatment plant, as the total amount of rainwater inflow and infiltration of the entire sewage treatment plant system.

[0105] In some optional implementations, the total amount of rainwater inflow and infiltration in the pipe network system upstream of the first-stage pumping station is calculated by the following formula:

[0106] W 入流入渗，1 =W w，1 +W p,雨,1 -W p,旱,1

[0107] Where W 入流入渗,1 is the total amount of rainwater inflow and infiltration in the pipe network system upstream of the first-level pumping station, W w,1 The difference between the storage water volume of the upstream pipe network system of the sewage pumping station at the end of the rainfall event and the average storage water volume on dry days; W p,雨,1 W is the drainage volume of the first-level pumping station during the rainfall event; p,旱,1 The amount of water pumped by the first-stage pumping station on a dry day in the same time period as the rainfall event;

[0108] The total amount of rainwater inflow and infiltration in the pipe network system between the n-level pumping station and the n-1-level pumping station is calculated by the following formula:

[0109] W 入流入渗,n =W w,n -W w,n-1 +(W p,雨,n -W p,旱,n )-(W p,雨,n-1 -W p,旱,n-1 )

[0110] Where W 入流入渗,n is the total amount of rainwater inflow and infiltration in the pipe network system between the n-level pumping station and the n-1-level pumping station;

[0111] W w,nW is the difference between the storage water volume of the upstream pipe network system of the n-level pumping station at the end of the rainfall event and the average storage water volume on dry days; w,n-1 W is the sum of the difference between the storage water volume of the upstream pipe network system of all n-1 level pumping stations that have upstream and downstream connections with level n and the average storage water volume on dry days at the end of the rainfall event; p,雨,n W is the discharge volume of the n-level pumping station in the rainfall event; p,雨,n-1 W is the sum of the pumping and drainage volumes of all n-1 level pumping stations that have upstream and downstream connections with level n during a rainfall event; p,旱,n W is the drainage volume of the n-level pumping station on a dry day in the same period as the rainfall event; p,旱,n-1 The drainage volume of the n-1 level pumping station that has an upstream and downstream relationship with the n level on a dry day in the same time period as the rainfall event;

[0112] The total amount of rainwater inflow and infiltration in the pipe network system between the final pumping station and the sewage treatment plant is calculated by the following formula:

[0113] W 入流入渗,s =W w,s -W w,末级 +(W 雨,s -W 旱,s )-(W p,雨,末级 -W p,旱，末级 )

[0114] Where W 入流入渗,s is the total amount of rainwater inflow and infiltration in the pipe network system between the final pumping station and the sewage treatment plant; W w,s W is the difference between the storage water volume of the upstream pipe network system of the sewage treatment plant at the end of the rainfall event and the average storage water volume on dry days; w,末级 It is the sum of the difference between the storage water volume of the upstream pipe network system of all the final pumping stations at the end of the rainfall event and the average storage water volume on dry days; W 雨，s is the water inflow to the sewage treatment plant during the rainfall event; W p,雨,末级 W is the sum of the pumping and drainage volumes of all the final pumping stations in the rainfall event; 旱,s W is the water inflow to the sewage treatment plant on a dry day in the same period as the rainfall event; p,旱,末级 It is the amount of water pumped by all terminal pumping stations on dry days in the same time period as the rainfall event.

[0115] In some optional embodiments, the total amount of rainwater inflow and infiltration in the entire system of the sewage treatment plant is calculated by the following formula:

[0116]

[0117] Where W 入流入渗 is the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system; W 入流入渗,1,j is the total inflow and infiltration of the upstream pipe network system of the jth pumping station in the first-level pumping station, 1≤j≤p, p≥1 is the number of first-level pumping stations; W 入流入渗,n,kis the kth pumping station in the nth pumping station, the total inflow and infiltration of the pipe network system between the nth and n-1th pumping stations, 0≤k≤q, q≥0 is the number of nth pumping stations; W 入流入渗,s It is the total amount of rainwater inflow and infiltration in the pipe network system between the final pumping station and the sewage treatment plant.

[0118] In some optional implementations, the total amount of rainwater inflow and infiltration is equivalent to the ratio of the net rainfall generated by the sewage pipe network receiving area divided by the pump station to the total rainfall. The calculation module 403 includes:

[0119] The fifth calculation unit is used to obtain the ratio of the total amount of rainwater inflow and infiltration of the first-level sewage pumping station to the net rainfall generated by the water collection area of ​​the upstream pipe network of the first-level sewage pumping station to the total amount of rainfall based on the total amount of rainwater inflow and infiltration of the first-level sewage pumping station, the water collection area of ​​the upstream pipe network of the pipeline monitoring point before the water inflow of the first-level sewage pumping station, and the gross rainfall of the entire rainfall event;

[0120] The sixth calculation unit is used to obtain the ratio of the total amount of rainwater inflow and infiltration of the n-level pumping station and the n-1-level pumping station to the net runoff generated by the water collection area of ​​the pipe network system between the n-level pumping station and the n-1-level pumping station to the total amount of rainfall based on the upstream pipe network water collection area of ​​the pipe network monitoring point before the water inflow of the n-level pumping station and the n-1-level pumping station, the gross rainfall of the entire rainfall event, and the total amount of rainwater inflow and infiltration of the pipe network system between the n-level pumping station and the n-1-level pumping station;

[0121] The seventh calculation unit is used to obtain the ratio of the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system to the net rainfall generated by the upstream pipe network receiving area of ​​the sewage treatment plant to the total rainfall based on the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system, the gross rainfall of the entire rainfall event and the upstream pipe network receiving area of ​​the pipe monitoring point before the sewage treatment plant water inlet.

[0122] In some optional implementations, the total amount of rainwater inflow and infiltration at the first-stage sewage pumping station is equivalent to the ratio η1 of the net rainfall produced in the water collection area of ​​the upstream pipe network of the pumping station to the total rainfall, which is calculated by the following formula:

[0123] η1=W 入流入渗,1 / (F P,1 ·P)

[0124] In the formula, F P，1 is the water collection area of ​​the upstream pipe network of the pipeline monitoring point before the first-level sewage pumping station inlet, and P is the gross rainfall of the entire rainfall event monitored by the rainfall point;

[0125] The total amount of rainwater inflow and infiltration in the pipe network system between the n-1-level pumping station is equivalent to the ratio of the net rainfall produced by the pipe network water collection area between the n-1-n-level pumping stations to the total rainfall η n Calculated by the following formula:

[0126] η n =W入流入渗,n / ((F P,n -F P,n-1 )·P)

[0127] In the formula, F P,n 、F P,n-1 They are the water collection area of ​​the upstream pipe network of the monitoring point of the pipeline before water inlet of the n-1-level sewage pump station which has upstream and downstream connections with the n-level;

[0128] The total amount of rainwater inflow and infiltration in the entire sewage treatment plant system is equivalent to the ratio of the net rainfall produced by the upstream pipe network of the sewage treatment plant to the total rainfall, η, which is calculated by the following formula:

[0129] η=W 入流入渗 / (F·P)

[0130] Where F is the water collection area of ​​the upstream pipe network of the sewage treatment plant.

[0131] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0132] The rainwater inflow and infiltration monitoring and evaluation device for the pump sewage system in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above-mentioned functions.

[0133] The embodiment of the present invention also provides a computer device having the above Figure 4 The pump sewage system stormwater inflow and infiltration monitoring and assessment device shown.

[0134] See also Figure 5 , Figure 5 is a schematic diagram of the structure of a computer device provided by an optional embodiment of the present invention, such as Figure 5As shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process the instructions executed in the computer device, including instructions stored in or on the memory to display the graphical information of the GUI on an external input / output device (such as, a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 5 A processor 10 is taken as an example.

[0135] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0136] The memory 20 stores instructions executable by at least one processor 10, so that at least one processor 10 executes the method shown in the above embodiment.

[0137] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0138] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0139] The computer device further comprises a communication interface 30 for the computer device to communicate with other devices or a communication network.

[0140] The embodiment of the present invention also provides a computer-readable storage medium. The method according to the embodiment of the present invention can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0141] A part of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the existence of the computer program instruction in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc., and accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium accessible to the computer.

[0142] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method for monitoring and evaluating rainwater inflow and infiltration in a pumped sewage system, characterized in that: include: Obtain the gross rainfall data of the target rainfall event process in the monitoring pump sewage system area, the liquid level change data of the monitoring points of the pump station and the pipeline before the sewage treatment plant under the target rainfall event, and the liquid level change data on the dry day in the same season as the rainfall event, the pumping and drainage volume of the pump station, and the water inflow change data of the sewage treatment plant; Based on the liquid level volume curve of the pipe network system upstream of the monitoring point, combined with the liquid level change data during rainfall, the liquid level change data on dry days in the same season, the pumping and drainage volume of the pumping station, and the water inflow change data of the sewage plant, the total amount of rainwater inflow and infiltration under the rainfall event of the sewage system divided by the pumping station is obtained step by step; Based on the total amount of rainwater inflow and infiltration, the gross rainfall data of the target rainfall event process and the water collection area of ​​the pipe network upstream of the monitoring point, the ratio of the total amount of rainwater inflow and infiltration to the net rainfall generated by the sewage pipe network water collection area divided by the pump station to the total rainfall is calculated; The total amount of rainwater inflow and infiltration and the ratio of the total amount of rainwater inflow and infiltration to the net rainfall generated in the sewage pipe network receiving area divided by the pumping station to the total rainfall are used as indicators to evaluate the rainwater inflow and infiltration of the pumped sewage system.

2. The method according to claim 1, characterized in that: The liquid level volume curve of the pipe network system upstream of the monitoring point is combined with the liquid level change data during rainfall, the liquid level change data on dry days in the same season, the pumping and drainage volume of the pumping station, and the water inflow change data of the sewage plant to obtain the total amount of rainwater inflow and infiltration under the rainfall event of the sewage system with the pumping station as the partition, including: Based on the liquid level change data of the monitoring points during the rainfall event and the liquid level volume curve of the upstream pipe network system, the storage water volume of the sewage pumping station and the upstream pipe network system of the sewage treatment plant at the end of the rainfall event is obtained; The average storage water volume on dry days is obtained based on the real-time change data of the liquid level on dry days in the same season as the rainfall event; The difference between the storage water volume of the sewage pumping station or the upstream pipe network system of the sewage treatment plant at the end of the rainfall event and the average storage water volume on dry days, the drainage volume of the pumping station or the water inflow volume of the sewage treatment plant during the rainfall event, and the drainage volume of the pumping station or the water inflow volume of the sewage treatment plant on dry days in the same period as the rainfall event are used to obtain the total amount of rainwater inflow and infiltration in the upstream pipe network system of the first-level sewage pumping station, the pipe network system between the n-1-level pumping station (1 < n ≤ N, N ≥ 2 is the total number of pumping stations in the sewage treatment plant system) and the last-level pumping station and the sewage treatment plant. The total amount of rainwater inflow and infiltration of the first-level pumping station, the total amount of rainwater inflow and infiltration of the pipe network system between the n-level pumping station and the n-1-level pumping station, and the total amount of rainwater inflow and infiltration of the pipe network system between the last-level pumping station and the sewage treatment plant are added up to obtain the total amount of rainwater inflow and infiltration of the entire sewage treatment plant system.

3. The method according to claim 2, characterized in that The total amount of rainwater inflow and infiltration in the pipe network system upstream of the first-level pumping station is calculated by the following formula: IN 入流入渗，1 =In w，1 +W p,雨,1 -IN p,旱,1 Where W 入流入渗,1 is the total amount of rainwater inflow and infiltration in the pipe network system upstream of the first-level pumping station, W w,1 The difference between the storage water volume of the upstream pipe network system of the sewage pumping station at the end of the rainfall event and the average storage water volume on dry days; W p,雨,1 The amount of water pumped by the first-stage pumping station during rainfall events; W p,旱,1 The amount of water pumped by the first-stage pumping station on a dry day in the same time period as the rainfall event; The total amount of rainwater inflow and infiltration in the pipe network system between the n-level pumping station and the n-1-level pumping station is calculated by the following formula: IN 入流入渗,n =In w,n -IN w,n-1 +(W p,雨,n -IN p,旱,n )-(IN p,雨,n-1 -IN p,旱,n-1 ) Where W 入流入渗,n is the total amount of rainwater inflow and infiltration in the pipe network system between the n-level pumping station and the n-1-level pumping station; W w,n W is the difference between the storage water volume of the upstream pipe network system of the n-level pumping station at the end of the rainfall event and the average storage water volume on dry days; w,n-1 W is the sum of the difference between the storage water volume of the upstream pipe network system of all n-1 level pumping stations that have upstream and downstream connections with level n and the average storage water volume on dry days at the end of the rainfall event; p,雨,n W is the discharge volume of the n-level pumping station in the rainfall event; p,雨,n-1 W is the sum of the pumping and drainage volumes of all n-1 level pumping stations that have upstream and downstream connections with level n during a rainfall event; p,旱,n W is the drainage volume of the n-level pumping station on a dry day in the same period as the rainfall event; p,旱,n-1 The drainage volume of the n-1 level pumping station that has an upstream and downstream relationship with the n level on a dry day in the same time period as the rainfall event; The total amount of rainwater inflow and infiltration in the pipe network system between the final pumping station and the sewage treatment plant is calculated by the following formula: IN 入流入渗,s =In w,s -IN w,末级 +(W 雨,s -IN 旱,s )-(IN p,雨,末级 -IN p,旱，末级 ) Where W 入流入渗,s is the total amount of rainwater inflow and infiltration in the pipe network system between the final pumping station and the sewage treatment plant; W w,s W is the difference between the storage water volume of the upstream pipe network system of the sewage treatment plant at the end of the rainfall event and the average storage water volume on dry days; w,末级 It is the sum of the difference between the storage water volume of the upstream pipe network system of all the final pumping stations at the end of the rainfall event and the average storage water volume on dry days; W 雨,s is the water inflow to the sewage treatment plant during the rainfall event; W p,雨,末级 W is the sum of the pumping and drainage volumes of all the final pumping stations in the rainfall event; 旱,s W is the water inflow to the sewage treatment plant on a dry day in the same period as the rainfall event; p,旱,末级 It is the amount of water pumped by all terminal pumping stations on dry days in the same time period as the rainfall event.

4. The method according to claim 2 or 3, characterized in that: The total amount of rainwater inflow and infiltration in the entire system of the sewage treatment plant is calculated by the following formula: Where W 入流入渗 is the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system; W 入流入渗,1,j is the total inflow and infiltration of the upstream pipe network system of the jth pumping station in the first-level pumping station, 1≤j≤p, p≥1 is the number of first-level pumping stations; W 入流入渗,n,k is the kth pumping station in the nth pumping station, the total inflow and infiltration of the pipe network system between the nth and n-1th pumping stations, 0≤k≤q, q≥0 is the number of nth pumping stations; W 入流入渗,s It is the total amount of rainwater inflow and infiltration in the pipe network system between the final pumping station and the sewage treatment plant.

5. The method according to claim 4, characterized in that The total amount of rainwater inflow and infiltration, gross rainfall data of the target rainfall event process and the water collection area of ​​the pipe network upstream of the monitoring point are used to calculate the ratio of the total amount of rainwater inflow and infiltration to the net rainfall generated by the sewage pipe network water collection area divided by the pump station to the total amount of rainfall, including: Based on the total amount of rainwater inflow and infiltration of the first-level sewage pumping station, the water collection area of ​​the upstream pipe network of the pipeline monitoring point before the water inlet of the first-level sewage pumping station, and the gross rainfall of the entire rainfall event, the ratio of the total amount of rainwater inflow and infiltration of the first-level sewage pumping station to the net rainfall generated by the water collection area of ​​the upstream pipe network of the pumping station to the total rainfall is obtained; Based on the upstream pipe network water collection area of ​​the pipeline monitoring point before the water inflow of the n-level pumping station and the n-1-level pumping station, the gross rainfall of the entire rainfall event, and the total amount of rainwater inflow and infiltration in the pipe network system between the n-level pumping station and the n-1-level pumping station, the total amount of rainwater inflow and infiltration between the n-level pumping station and the n-1-level pumping station is equivalent to the ratio of the net rainfall generated by the water collection area of ​​the pipe network system between the n-level pumping station and the n-1-level pumping station to the total rainfall; Based on the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system, the gross rainfall of the entire rainfall event and the upstream pipe network collection area of ​​the pipeline monitoring point before the sewage treatment plant water inlet, the ratio of the total amount of rainwater inflow and infiltration in the entire sewage treatment plant system to the net rainfall produced by the upstream pipe network collection area of ​​the sewage treatment plant to the total rainfall is obtained.

6. The method according to claim 5, characterized in that The total amount of rainwater inflow and infiltration at the first-level sewage pumping station is equivalent to the ratio of the net rainfall produced in the water collection area of ​​the upstream pipe network of the pumping station to the total rainfall, η1, which is calculated by the following formula: η1=W 入流入渗，1 / (F P,1 ·P) In the formula, F P，1 is the water collection area of ​​the upstream pipe network of the pipeline monitoring point before the first-level sewage pumping station inlet, and P is the gross rainfall of the entire rainfall event monitored by the rainfall point; The total amount of rainwater inflow and infiltration in the pipe network system between the n-1-level pumping station is equivalent to the ratio of the net rainfall produced by the pipe network water collection area between the n-1-n-level pumping stations to the total rainfall η n Calculated by the following formula: η n =W 入流入渗,n / ((F P,n -F P,n-1 )·P) In the formula, F P,n、 F P,n-1 They are the water collection area of ​​the upstream pipe network of the monitoring point of the pipeline before water inlet of the n-1-level sewage pump station which has upstream and downstream connections with the n-level; The total amount of rainwater inflow and infiltration in the entire sewage treatment plant system is equivalent to the ratio of the net rainfall produced by the upstream pipe network of the sewage treatment plant to the total rainfall, η, which is calculated by the following formula: η=W 入流入渗 / (F·P) Where F is the water collection area of ​​the upstream pipe network of the sewage treatment plant.

7. A rainwater inflow and infiltration monitoring and evaluation device for a pumped sewage system, characterized in that: The device comprises: A monitoring data acquisition module is used to acquire the gross rainfall data of the target rainfall event process in the monitoring pump sewage system area, the liquid level change data of the monitoring points of the pump station and the pipeline before the sewage treatment plant under the target rainfall event, and the liquid level change data on the dry day in the same season as the rainfall event, the pumping and drainage volume of the pump station, and the water inflow change data of the sewage treatment plant; The total amount of rainwater inflow and infiltration calculation module is used to obtain the total amount of rainwater inflow and infiltration under the rainfall event of the sewage system divided by the pumping station in a step-by-step manner based on the liquid level volume curve of the pipe network system upstream of the monitoring point, combined with the liquid level change data during the rainfall period, the liquid level change data on dry days in the same season, the pumping and drainage volume of the pumping station, and the water inflow change data of the sewage plant; A calculation module for the ratio of the total amount of rainwater inflow and infiltration equivalent to the net rainfall generated by the sewage pipe network water collection area divided by the pump station to the total rainfall, which is used to calculate the ratio of the total amount of rainwater inflow and infiltration equivalent to the net rainfall generated by the sewage pipe network water collection area divided by the pump station to the total rainfall based on the total amount of rainwater inflow and infiltration, the gross rainfall data of the target rainfall event process and the water collection area of ​​the pipe network upstream of the monitoring point; The rainwater inflow and infiltration assessment module is used to evaluate the rainwater inflow and infiltration of the pump sewage system by taking the total amount of rainwater inflow and infiltration and the ratio of the total amount of rainwater inflow and infiltration to the net rainfall generated in the sewage pipe network receiving area divided by the pump station to the total rainfall as indicators.

8. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method for monitoring and assessing rainwater inflow and infiltration in a pumped sewage system according to any one of claims 1 to 6 by executing the computer instructions.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the method for monitoring and evaluating rainwater inflow and infiltration in a pumped sewage system according to any one of claims 1 to 6.

10. A computer program product, characterized in that It comprises computer instructions, and the computer instructions are used to make a computer execute the rainwater inflow and infiltration monitoring and evaluation method of a pump sewage system according to any one of claims 1 to 6.

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