Integrated Intelligent Simulation System for Drainage Pipeline Network

Abstract

The embodiment of the present application provides a comprehensive intelligent simulation system for a drainage network. The system includes: a sewage pool, a drainage network, a regulating and storing device, a rainfall device, and an outlet pool; the water inlet of the drainage network is connected to the sewage pool, which is used to discharge the sewage in the sewage pool through a pipe; the regulating and storing device includes an online regulating and storing device and an offline regulating and storing device, both of which are connected to the drainage network, the online regulating and storing device is used to adjust the drainage flow of the drainage network, and the offline regulating and storing device is used to adjust the peak flow of the drainage network; the outlet of the drainage network is connected to the outlet pool through an underground pipe; the rainfall device includes: a rainwater pool and at least one rainfall unit, the rainwater pool is connected to at least one rainfall unit through a pipe; at least one rainfall unit is used to simulate the corresponding rainfall scenario. Under laboratory conditions, the system accurately simulates various complex working conditions in the urban drainage network system, effectively supporting the design and optimization of the drainage network.

Description

Technical Field

[0001] This application relates to the field of simulation experimental equipment technology, and in particular to a comprehensive intelligent simulation system for drainage pipe networks. Background Technology

[0002] Drainage networks are a crucial part of urban infrastructure, significantly impacting urban flood control, environmental protection, and residents' lives. To better leverage the operational efficiency of drainage network systems, it is necessary to research technologies such as the systematic joint scheduling and control laws and rules for multi-objective collaborative urban drainage networks, and to comprehensively apply these technologies to improve the quality and efficiency of drainage systems.

[0003] Currently, pipeline simulation devices include those that use radar detection technology to detect leaks and simulate the leakage situation of real tap water pipe networks; and those that conduct simulation experiments to study the erosion resistance characteristics of sediments under various conditions of different sediments or flow velocities.

[0004] However, in the existing technology, most experimental simulation devices for drainage pipe networks focus on the simulation research of a certain technology. For complex systems like drainage pipe networks, it is necessary to study the comprehensive impact of different technologies on the entire system from multiple perspectives in order to better support the improvement of the quality and efficiency of the drainage system. Summary of the Invention

[0005] This application provides a comprehensive intelligent simulation system for drainage pipe networks, which can accurately simulate various complex working conditions in urban drainage pipe network systems under laboratory conditions. It not only provides a repeatable experimental platform, but also obtains accurate data under controlled conditions, effectively supporting the formulation of design, optimization and management strategies for drainage pipe networks.

[0006] This application provides a comprehensive intelligent simulation system for drainage pipe networks, which includes: a sewage tank, a drainage pipe network, a storage and regulation device, a rainfall device, and an outlet tank.

[0007] The inlet of the drainage pipe network is connected to the sewage tank, and is used to discharge the sewage in the sewage tank through the pipe;

[0008] The storage and regulation device includes an online storage and regulation device and an offline storage and regulation device. Both the online storage and regulation device are connected to the drainage pipe network. The online storage and regulation device is used to regulate the drainage flow of the drainage pipe network, and the offline storage and regulation device is used to regulate the peak flow of the drainage pipe network.

[0009] The outlet of the drainage network is connected to the outlet pool via underground pipes;

[0010] The rainfall device includes: a rainwater pool and at least one rainfall unit, wherein the rainwater pool and the at least one rainfall unit are connected by a pipe;

[0011] The at least one rainfall unit is used to simulate the corresponding rainfall scenario.

[0012] In one possible implementation, the drainage network includes: a plurality of first submersible pumps, a plurality of first water supply pipes, a first inspection well, and a delivery pipe;

[0013] The plurality of first submersible pumps are deployed in the sewage tank and connected to the corresponding water supply pipes;

[0014] The plurality of first water supply pipes are connected to the delivery pipe through corresponding first inspection wells;

[0015] The plurality of first submersible pumps are used to pump sewage from the sewage tank into the delivery pipe.

[0016] In one possible implementation, multiple support columns are used;

[0017] The plurality of support columns are disposed below the plurality of first inspection wells;

[0018] Each of the multiple support columns is equipped with a lifting unit, which is used to control the height of the corresponding support column to simulate the scenario where the drainage pipe network is at multiple pipe slopes.

[0019] In one possible implementation, the online storage device includes: a first regulating valve, a second submersible pump, a second water supply pipe, and an online storage tank, wherein the delivery pipe includes: a first sub-pipe, a second sub-pipe, and a third sub-pipe;

[0020] The first regulating valve is installed on the first sub-pipe and is used to regulate the drainage flow rate of the first sub-pipe;

[0021] The outlet of the first sub-pipe is located in the online regulating tank, and the outlet of the second sub-pipe is connected to the third sub-pipe, which is used to transport the sewage in the pipe to the underground pipeline.

[0022] The second submersible pump is deployed in the online regulating tank and connected to the second water supply pipe, which is connected to the third sub-pipe.

[0023] The first submersible pump is used to pump the sewage in the online regulating tank to the third sub-pipe.

[0024] In one possible implementation, the offline storage device includes: a second regulating valve, a third submersible pump, a third water supply pipe, and an offline storage tank, wherein the third sub-pipe includes: a main delivery pipe and a branch delivery pipe;

[0025] The outlet of the delivery branch pipe is located inside the offline storage tank, and the second regulating valve is installed on the delivery branch pipe to regulate the water flow rate entering the offline storage tank through the delivery branch pipe.

[0026] The main conveying pipe is equipped with a third regulating valve, which is used to regulate the water flow rate that directly enters the underground pipeline through the main conveying pipe.

[0027] The third submersible pump is deployed in the offline storage tank and connected to the third water supply pipe;

[0028] The third water supply pipe is connected to the outlet of the main conveying pipe, and the connection node between the third water supply pipe and the main conveying pipe is located between the third regulating valve and the outlet of the main conveying pipe.

[0029] The third submersible pump is used to pump the sewage in the offline storage tank to the second delivery pipe.

[0030] In one possible implementation, the integrated intelligent simulation system for drainage pipe networks further includes at least one mobile water tank vehicle; wherein, the mobile water tank vehicle includes a mobile water tank, a mobile component, a fourth submersible pump, and a fourth water supply pipe;

[0031] The mobile water tank vehicle is connected to the corresponding first inspection well;

[0032] The mobile water tank, located on the mobile water tank vehicle, is used to store mixed water sources;

[0033] The fourth submersible pump is deployed in the corresponding mobile water tank and connected to the fourth water supply pipe;

[0034] The fourth submersible pump is used to pump the mixed water source to the drainage network.

[0035] In one possible implementation, the rainfall device further includes a fifth submersible pump and a fifth water supply pipe, and the rainfall unit includes: a rainfall branch pipe and a rainfall nozzle;

[0036] The fifth submersible pump is deployed in the rainwater pool and connected to the fifth water supply pipe;

[0037] The fifth water supply pipe is connected to the rain nozzle through a corresponding rain branch pipe;

[0038] The fifth submersible pump is used to pump water from the rainwater pool into the rainwater branch pipe;

[0039] The rain nozzles are used to spray water to simulate corresponding rainfall scenarios.

[0040] In one possible implementation, the rainfall device further includes a manifold and a second inspection well;

[0041] The manifold is located below the at least one rainfall unit, and the water sprayed by the rainfall nozzles falls onto the manifold.

[0042] The manifold is provided with multiple manifold holes, and a corresponding second inspection well is provided below each manifold hole. The second inspection well is connected to the underground pipeline.

[0043] The manifold is used to allow water sprayed from the rain nozzles to pass through and enter the underground pipe.

[0044] In one possible implementation, the rain-receiving device also includes a cover plate, a rainwater inlet, and a drainage branch pipe;

[0045] The cover plate is connected to the manifold and is used to block the manifold.

[0046] The rainwater inlet is located on the bottom plate of the rainwater baffle and is connected to the drainage branch pipe;

[0047] The drainage branch pipe is connected to the outlet pool;

[0048] The rainwater inlet is used to allow water sprayed from the rain nozzles to pass through and directly enter the outlet pool.

[0049] In one possible implementation, the integrated intelligent simulation system for drainage networks also includes underground water storage tanks;

[0050] The underground pipeline is located in the underground water storage tank;

[0051] The underground water storage tank is used to simulate the infiltration and external seepage scenarios of the underground pipeline.

[0052] The integrated intelligent simulation system for drainage pipe networks provided in this application includes a sewage tank, drainage pipe network, storage device, rainwater harvesting device, and outlet tank. Under laboratory conditions, the system accurately simulates various complex working conditions in urban drainage pipe network systems. It not only provides a repeatable experimental platform but also obtains accurate data under controlled conditions, effectively supporting the design, optimization, and management strategies of drainage pipe networks. Attached Figure Description

[0053] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0054] Figure 1a A top view of a comprehensive intelligent simulation system for drainage pipe networks provided in an embodiment of this application;

[0055] Figure 1b An isometric view of an integrated intelligent simulation system for drainage pipe networks provided in this application embodiment;

[0056] Figure 2 A partial view of the water supply pipe and delivery pipe provided in an embodiment of this application;

[0057] Figure 3 This is a structural schematic diagram of a mobile water tank vehicle provided in an embodiment of this application.

[0058] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments.

[0059] Explanation of reference numerals in the attached figures:

[0060] 11-Sewage tank; 120-Underground pipeline; 121-First submersible pump; 122-First water supply pipe; 123-First inspection well; 124-Transfer pipe; 1241-First sub-pipe; 1242-Second sub-pipe; 1243-Third sub-pipe; 1243A-Main transfer pipe; 1243B-Transfer branch pipe; 125-Support column; 126-Third regulating valve; 1311-First regulating valve; 1312-Second submersible pump; 1313-Second water supply pipe; 1314-Online storage tank; 1321-Second regulating valve; 1322-Third submersible pump; 1323-Third... Water supply pipe; 1324-Offline regulating storage tank; 1401-Rainwater tank; 1402-Rainfall unit; 1402A-Rainfall branch pipe; 1402B-Rainfall sprinkler head; 1403-Fifth submersible pump; 1404-Fifth water supply pipe; 1405-Manifold plate; 1406-Second inspection well; 1407-Manifold hole; 1408-Rainwater baffle; 1409-Cover plate; 1410-Rainwater inlet; 1411-Drainage branch pipe; 15-Outlet pool; 16-Underground water storage tank; 301-Mobile water tank; 302-Mobile component; 303-Fourth submersible pump; 304-Fourth water supply pipe. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0062] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, products, or apparatus.

[0063] "Multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following objects have an "or" relationship.

[0064] It should be noted that, in the embodiments of this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design scheme described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0065] The normal operation of drainage pipe networks is affected by many factors, and the normal operation of drainage pipe networks has an important impact on urban flood control, drainage, environmental protection and residents' lives.

[0066] Currently, most experimental simulation devices for drainage pipe networks focus on the simulation research of a single technology. However, for complex systems like drainage pipe networks, it is necessary to study the comprehensive impact of different technologies on the entire system from multiple perspectives in order to better support the improvement of the quality and efficiency of the drainage system.

[0067] To address the aforementioned issues, this application provides a comprehensive intelligent simulation system for drainage pipe networks, enabling simulation research on various technologies within the pipe network system and effectively supporting the formulation of design, optimization, and management strategies for drainage pipe networks.

[0068] Figure 1a A top view of a comprehensive intelligent simulation system for drainage pipe networks provided in an embodiment of this application, as shown below. Figure 1a As shown, the system includes: a sewage tank 11; a drainage pipe network 12; a storage and regulation device 13; a rainfall device 14; and an outlet pool 15.

[0069] The inlet of the drainage network 12 is located in the sewage tank 11. The storage device 13 includes an online storage device 131 and an offline storage device 132. Sewage enters the online storage device 131 and the offline storage device 132 along with the drainage network 12. The outlet of the drainage network 12 is connected to the outlet tank 15 through an underground pipe 120.

[0070] The rainmaking device 14 includes a rainwater pool 1401 and at least one rainwater unit 1402. The rainwater pool 1401 and the at least one rainwater unit 1402 are connected by a pipe. Rainwater in the rainwater pool 1401 enters the at least one rainwater unit 1402 through the pipe. The at least one rainwater unit 1402 is used to simulate the corresponding rain scene.

[0071] The wastewater tank contains wastewater, such as domestic sewage. The wastewater in the tank enters the drainage network through the inlet. It then flows into online and offline storage devices, which store the wastewater. The online storage device regulates the drainage flow rate of the drainage network, while the offline storage device regulates the peak flow rate. The wastewater in the drainage network enters through the inlet, and the outlet of the drainage network is connected to the discharge pool via underground pipes. Finally, the wastewater in the drainage network enters the discharge pool through the outlet, which simulates the forebay of a wastewater treatment plant.

[0072] The rainwater tank stores water for simulating rainwater, such as tap water. The water for simulating rainwater enters at least one rainwater unit through pipes and is sprayed by the rainwater unit to simulate the corresponding rainfall scenario.

[0073] Figure 1b An isometric view of an integrated intelligent simulation system for drainage pipe networks provided in this application embodiment.

[0074] In one possible implementation, such as Figure 1a and Figure 1b As shown, the drainage network 12 includes: multiple first submersible pumps 121, multiple first water supply pipes 122, a first inspection well 123, and a delivery pipe 124.

[0075] Multiple first submersible pumps 121 are deployed in the sewage tank 11. Each first submersible pump 121 is connected to a first water supply pipe 122 through a corresponding first inspection well 123. The first water supply pipe 122 and the first inspection well 123 are connected to a delivery pipe 124.

[0076] Multiple first submersible pumps 121 deployed in the sewage tank 11 are connected to corresponding first water supply pipes 122. The first water supply pipes 122 are connected to the delivery pipes 124 through the first inspection well 123. The multiple first submersible pumps 121 are the inlets of the delivery pipes 124. The multiple first submersible pumps 121 pump the sewage in the sewage tank 11 to the delivery pipes 124 through the corresponding first water supply pipes 122.

[0077] Understandably, multiple first submersible pumps are used to simulate multiple different drainage units. These multiple first submersible pumps work independently and do not affect each other, in order to simulate the actual sewage discharge situation of each drainage unit. The amount of sewage pumped by the multiple first submersible pumps into the delivery pipe can be the same or different, and there is no restriction here.

[0078] Figure 2 A partial view of the water supply pipe and delivery pipe provided in an embodiment of this application.

[0079] In one possible implementation, such as Figure 2 As shown, considering that the diameter of the actual sewage delivery pipe is much larger than the diameter of the sewage discharge pipes of each drainage unit, the diameter of the first water supply pipe of this integrated intelligent simulation system for the drainage network is also much smaller than the diameter of the delivery pipe. On the one hand, this allows for a more realistic simulation of the state of sewage entering each first inspection well; on the other hand, it allows for the matching of a smaller first submersible pump, reducing the size of the device and lowering the cost of the integrated intelligent simulation system for the drainage network. The opening of each first inspection well is set as an open opening, where level gauges can be installed to monitor the liquid level, flow meters can be installed, etc., according to simulation requirements.

[0080] Preferably, the sediment to be simulated is placed in the delivery pipe, such as objects of different particle sizes and materials, to simulate the scouring of sediment in the pipe.

[0081] In one possible implementation, such as Figure 1b As shown, the drainage pipe network 12 also includes: multiple support columns 125;

[0082] Multiple support columns 125 are installed below multiple first inspection wells 123; on the one hand, the support columns 123 are used to support the drainage pipe network 12; on the other hand, each support column 123 is equipped with a lifting unit.

[0083] The lifting unit is used to control the height of the corresponding support column. Each support column can move up and down within a certain range to simulate the scenario of the drainage network being at multiple pipe slopes. Different slopes can simulate the sewage flow under different pipe elevation conditions.

[0084] Preferably, a flexible connection device is installed at each pipe joint to ensure a stable and secure connection of the pipe under different slope conditions.

[0085] Preferably, the delivery pipe is introduced with pipe sections of different materials, such as rough frosted glass or smooth PVC. If conditions do not permit, for example, some sediment can be added to the pipe to change the pipe cross-section and the roughness of the pipe wall, simulating various working conditions in the actual drainage system.

[0086] In one possible implementation, such as Figure 1a As shown, the online storage device 131 includes: a first regulating valve 1311, a second submersible pump 1312, a second water inlet pipe 1313, and an online storage tank 1314; the delivery pipe 124 includes: a first sub-pipe 1241, a second sub-pipe 1242, and a third sub-pipe 1243.

[0087] The first regulating valve 1311 is installed on the first sub-pipe 1241, and the outlet of the first sub-pipe 1241 is located in the online storage tank 1314; the second submersible pump 1312 is deployed in the online storage tank 1314 and is connected to the third sub-pipe 1243 through the second water supply pipe 1313; the outlet of the second sub-pipe 1242 is connected to the third sub-pipe 1243.

[0088] The opening size of the first regulating valve 1311 is adjusted according to the upstream water volume to regulate the drainage flow rate entering the online storage tank 1314. Wastewater in the first submersible pipe 1241 enters the online storage tank 1314 and can be temporarily stored to regulate the drainage flow rate of the drainage network 12. The second submersible pump 1312 pumps the wastewater stored in the online storage tank 1314 through the second water inlet pipe 1313 to the third submersible pipe 1243. The outlet of the second submersible pipe 1242 is connected to the third submersible pipe 1243; this connection point is the confluence of the wastewater in the second submersible pipe 1242 and the wastewater in the third submersible pipe 1243. After the wastewater in the second submersible pipe 1242 and the third submersible pipe 1243 merge, the wastewater in the pipe enters the underground pipeline through the third submersible pipe 1243.

[0089] The flow rate of sewage pumped by the second submersible pump to the third submersible pipe is related to the water level of the online regulating tank and the downstream water volume.

[0090] Understandably, the sewage in the first sub-pipe must pass through an online storage tank before entering the underground pipeline; while the sewage in the second sub-pipe can directly enter the underground pipeline without passing through an online storage tank, thus more realistically simulating the drainage network.

[0091] Wastewater must be transported through an online regulating tank, which is directly connected to the first sub-pipe and located on the main line of the drainage network. The online regulating tank regulates the drainage pressure and ensures the stable operation of the integrated intelligent simulation system of the drainage network.

[0092] In one possible implementation, such as Figure 1aAs shown, the offline storage device 132 includes: a second regulating valve 1321, a third submersible pump 1322, a third water supply pipe 1323, and an offline storage tank 1324. The third sub-pipe 1243 includes: a main conveying pipe 1243A and a branch conveying pipe 1243B.

[0093] The second regulating valve 1321 is installed on the delivery branch pipe 1243B, and the outlet of the delivery branch pipe 1243B is located in the offline storage tank 1324; the third submersible pump 1322 is deployed in the offline storage tank 1324 and is connected to the third water supply pipe 1323, which is connected to the outlet of the main delivery pipe 1243A; the main delivery pipe 1243A is equipped with a third regulating valve 126; the connection node between the third water supply pipe 1323 and the main delivery pipe 1243A is located between the second regulating valve 1321 and the outlet of the main delivery pipe 1243A.

[0094] According to the upstream water volume, the opening size of the second regulating valve 1321 is adjusted to regulate the water flow rate entering the offline storage tank 1324 through the conveying branch pipe 1243B. The sewage in the pipe enters the offline storage tank 1324 through the conveying branch pipe 1243B. The third submersible pump 1322 pumps the sewage stored in the offline storage tank 1324 to the conveying main pipe 1243A through the third water supply pipe 1323.

[0095] Understandably, the flow rate of sewage pumped by the third submersible pump to the main conveying pipe is related to the water level in the offline regulating tank and the downstream water volume.

[0096] The third regulating valve is used to regulate the flow rate of water that enters the underground pipeline directly through the main transport pipe, based on the water level of the offline storage tank, the liquid level or flow rate information of the downstream tank, and simulated dispatching needs.

[0097] Through the coordinated control of the second and third regulating valves, simulations of three common operating conditions can be achieved: when the second regulating valve is fully closed and the third regulating valve is open, all sewage flows through the main conveying pipe and enters the underground pipeline; when the second regulating valve is open and the third regulating valve is fully closed, all sewage flows through the conveying branch pipe 1 and enters the offline storage tank; when both are open, the sewage is divided into two parts, one part flows through the main conveying pipe and enters the underground pipeline, and the other part enters the offline storage tank through the conveying branch pipe.

[0098] The offline storage tank is not directly connected to the drainage pipe. Instead, it uses a diversion structure to introduce excess rainwater or sewage into the offline storage tank for temporary storage, in order to regulate peak water volume.

[0099] Figure 3 This is a structural schematic diagram of a mobile water tank vehicle provided in an embodiment of this application.

[0100] In one possible implementation, the integrated intelligent simulation system for drainage networks also includes at least one mobile water tank vehicle 30; such as Figure 3 As shown, the mobile water tank vehicle 30 includes a mobile water tank 301, a mobile component 302, a fourth submersible pump 303, and a fourth water supply pipe 304;

[0101] A mobile water tank vehicle 30 is connected to the inlet of the first inspection well corresponding to the drainage network 12; a mobile water tank 301 is located on the mobile water tank vehicle 30 and is used to store mixed water sources; a fourth submersible pump 303 is deployed in the corresponding mobile water tank and is connected to the fourth water supply pipe 304; the fourth submersible pump 303 is used to pump the mixed water sources in the mobile water tank 301 to the drainage network 12 through the corresponding fourth water supply pipe 304.

[0102] According to the preset mixed connection conditions, the mobile water tank vehicle 30 moves to the preset mixed connection node and connects to the delivery pipe through the first inspection well corresponding to the preset mixed connection node. The mixed water source in the mobile water tank 30 is pumped into the delivery pipe through the corresponding fourth water supply pipe 303 and the first inspection well at the mixed connection node by the fourth submersible pump 303, and mixed with the original sewage in the delivery pipe.

[0103] The types and concentrations of pollutants in mixed water sources can be the same or different.

[0104] Preferably, water quality sensors deployed at different nodes capture changes in pollutants within the pipeline in real time. These data can be used to analyze the pollutant attenuation patterns along the pipeline and provide basic data for subsequent flow rate adjustments.

[0105] Preferably, the mobile water tank vehicle should be able to be moved at any time according to the mixed connection requirements, and lightweight materials such as plastic can be selected for construction.

[0106] In one possible implementation, such as Figure 1a and Figure 1b As shown, the rainfall device 14 also includes a fifth submersible pump 1403 and a fifth water supply pipe 1404, and the rainfall unit 1402 includes: a rainfall branch pipe 1402A and a rainfall nozzle 1402B;

[0107] The fifth submersible pump 1403 is deployed in the rainwater pool 1401 and connected to the fifth water supply pipe 1404; the fifth submersible pump 1403 is used to pump rainwater in the rainwater pool 1401 to the rainwater branch pipe 1402A; the rainwater nozzle 1402B sprays water to simulate the corresponding rainfall scenario.

[0108] Based on the simulated rainfall time series, the pumping volume of the fifth submersible pump is controlled in real time to achieve a perfect reproduction of the rainfall intensity. To ensure an adequate water supply to each sprinkler head, the diameter of the fifth water supply pipe must be larger than the diameter of the rainfall branch pipes. The specific size ratio is further determined based on the number of rainfall branch pipes, generally following the following principle:

[0109]

[0110] in, The diameter of the fifth water supply pipe. The diameter of the rainwater branch pipe. This refers to the number of rainwater branch pipes.

[0111] To fully simulate real rainfall, the sprinkler head is preferably designed with a downward-curving convex shape, and the edges are designed with alternating solid and void grooves to effectively disperse the water flow. The convex design causes the water flow to scatter over a wide angle when sprayed, while the groove edges break the continuity of the water flow, forming irregular water droplets. This combination allows water droplets to fall at different sizes, angles, and directions, thus covering a larger area and simulating a uniform distribution similar to rainfall.

[0112] In one possible implementation, such as Figure 1b As shown, the rainfall device 14 also includes a manifold 1405 and a second inspection well 1406;

[0113] A manifold 1405 is located below at least one rain unit 1402. Water sprayed from the rain nozzles 1402B falls onto the manifold 1405. The manifold 1405 is provided with multiple manifold holes 1407, and a corresponding second inspection well 1406 is provided below each manifold hole 1407. The second inspection well 1406 is connected to the underground pipe 120. The manifold holes 1407 are used to allow water sprayed from the rain nozzles to pass through and enter the underground pipe 120. A rainwater baffle 1408 is placed on the manifold 1405 so that all the sprayed water enters the manifold holes 1407.

[0114] Preferably, some pollutants can also be placed on the manifold to simulate the pollution of the initial runoff after rainfall.

[0115] When the rainwater baffle is placed on the manifold, the water sprayed by the rain nozzles enters multiple manifolds, flows into the underground pipe through the corresponding second inspection well below each manifold, mixes with the sewage in the underground pipe, and enters the discharge pool through the underground pipe.

[0116] In one possible implementation, such as Figure 1b As shown, the rain-receiving device 14 also includes a cover plate 1409, a rainwater inlet 1410, and a drainage branch pipe 1411;

[0117] Cover plate 1409, connected to manifold 1407, is used to block manifold 1407 and prevent water sprayed by rain nozzle 1402B from flowing out through manifold 1407; rainwater inlet 1410 is located on the bottom plate of rainwater baffle 1408 and is connected to drainage branch pipe 1411; drainage branch pipe 1411 is connected to outlet pool 15; rainwater inlet 1410 is used to allow water sprayed by rain nozzle 1402B to pass through and directly enter outlet pool.

[0118] Cover the manifold with the cover plate to block the inlet, and remove the rainwater baffle. When simulating a rainfall scenario, the water sprayed by the rain nozzles falls onto the manifold plate and then flows into the rainwater inlet. The rainwater inlet can separate the water from the pollutants. The pollutants remain on the manifold plate, while the clean water flows into the outlet pool through the drainage branch pipe.

[0119] Preferably, a water quality sensor is installed at the outlet pool. Condition A: A rainwater baffle is placed, and water sprayed from the rain nozzles flows out through the confluence hole; Condition B: No rainwater baffle is placed, and water sprayed from the rain nozzles flows out through the rainwater inlet. The pollutant concentration at the outlet pool is monitored under both conditions. If the pollutant concentration at the outlet corresponding to Condition B is significantly lower than that corresponding to Condition A, it verifies that the rainwater inlet device has a better application effect; otherwise, it indicates that the device still needs improvement.

[0120] In one possible implementation, such as Figure 1a As shown, the integrated intelligent simulation system for drainage pipe networks also includes an underground water storage tank 16;

[0121] The underground pipeline 120 is located in the underground water storage tank 16. By controlling the water level of the underground water storage tank 16, the infiltration and external seepage scenarios of the underground pipeline 120 are simulated.

[0122] Preferably, the operation of a real underground pipe network under high groundwater levels is simulated by controlling the water level in the underground reservoir. The specific water level and the infiltration and leakage conditions can be observed through the transparent walls of the reservoir and pipes. Furthermore, fiber optic temperature sensors can be installed in the underground pipes. When external water seeps into the pipes or enters the surrounding environment, it changes the temperature field around the pipes. By sensing these minute temperature changes, the fiber optic temperature sensors can promptly identify the intrusion of external water. The fiber optic cables can be deployed along the entire pipe to achieve distributed temperature monitoring, enabling not only the detection of single-point temperatures but also continuous monitoring of the entire pipe length.

[0123] In one possible implementation, the integrated intelligent simulation system for drainage networks also includes a central system (not shown in the figure); see further... Figure 1a and Figure 1bThe central system is communicatively connected to the drainage network 12, the storage device 13, and the rainfall device 14.

[0124] The central system, for example, can control the pumping power of the first submersible pump 121 in the drainage network 12 in real time to control the inflow rate of sewage from the sewage tank 11 into the drainage network 12.

[0125] The central system can also predict the changes in sewage level in the drainage network 12 based on real-time data and hydraulic model of sewage in the drainage network 12, and adjust the operation of the first regulating valve 1311, the second regulating valve 1321, the third regulating valve 126, the second submersible pump 1312 and the third submersible pump 1322 accordingly to ensure the stability and response speed of the integrated intelligent simulation system of the drainage network.

[0126] For example, if the water level of the sewage stored in the online regulating tank 1314 exceeds the preset water level, it indicates that there is too much water stored in the online regulating tank, and sewage overflow may occur. At this time, the opening of the second regulating valve 1321 can be reduced by the central system, and / or the pumping power of the second submersible pump 1312 can be increased.

[0127] The central system can also control the pumping volume of the fifth submersible pump 1403 deployed in the rainwater pool 1401 in real time according to the simulated rainfall time series to reproduce the rainfall intensity scene.

[0128] The central system is the core control module of the integrated intelligent simulation system for drainage networks. It is responsible for the coordinated control, data acquisition, and processing among drainage networks, storage devices, and rainfall devices. The central system connects to equipment such as submersible pumps, flow valves, level gauges, and flow meters via a local area network, enabling real-time monitoring and management of the entire drainage network.

[0129] On the central system's visualization interface, all sensor data and operational status are displayed graphically, allowing operators to intuitively understand the real-time operation of each device and adjust simulation parameters according to experimental needs. Through visualization tools, the central system also provides detailed trend analysis, anomaly warnings, and historical data backtracking functions, further enhancing the comprehensiveness and accuracy of the simulation experiment.

[0130] This application provides an integrated intelligent simulation system for drainage pipe networks. The system includes a sewage tank, drainage pipe network, storage and regulation device, rainfall device, and outlet tank. Under laboratory conditions, it accurately simulates various complex working conditions in urban drainage pipe network systems. It not only provides a repeatable experimental platform, but also obtains accurate data under controlled conditions, effectively supporting the design, optimization, and management strategies of drainage pipe networks.

[0131] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A comprehensive intelligent simulation system for drainage pipe networks, characterized in that, The integrated intelligent simulation system for the drainage network includes: a sewage tank, a drainage network, a storage and regulation device, a rainfall device, and an outlet tank; The inlet of the drainage pipe network is connected to the sewage tank, and is used to discharge the sewage in the sewage tank through the pipe; The storage and regulation device includes an online storage and regulation device and an offline storage and regulation device. Both the online storage and regulation device are connected to the drainage pipe network. The online storage and regulation device is used to regulate the drainage flow of the drainage pipe network, and the offline storage and regulation device is used to regulate the peak flow of the drainage pipe network. The outlet of the drainage network is connected to the outlet pool via underground pipes; The rainfall device includes: a rainwater pool and at least one rainfall unit, wherein the rainwater pool and the at least one rainfall unit are connected by a pipe; The at least one rainfall unit is used to simulate the corresponding rainfall scenario; The drainage network includes: multiple first submersible pumps, multiple first water supply pipes, a first inspection well, and a delivery pipe; The plurality of first submersible pumps are deployed in the sewage tank and connected to the corresponding first water supply pipe; The plurality of first water supply pipes are connected to the delivery pipe through corresponding first inspection wells; The plurality of first submersible pumps are used to pump sewage from the sewage tank to the delivery pipe; The online storage device includes: a first regulating valve, a second submersible pump, a second water supply pipe, and an online storage tank; the delivery pipe includes: a first sub-pipe, a second sub-pipe, and a third sub-pipe. The first regulating valve is installed on the first sub-pipe and is used to regulate the drainage flow rate of the first sub-pipe; The outlet of the first sub-pipe is located in the online regulating tank, and the outlet of the second sub-pipe is connected to the third sub-pipe, which is used to transport the sewage in the pipe to the underground pipeline. The second submersible pump is deployed in the online regulating tank and connected to the second water supply pipe, which is connected to the third sub-pipe. The second submersible pump is used to pump the sewage in the online regulating tank to the third sub-pipe.

2. The system according to claim 1, characterized in that, The drainage network also includes: multiple support columns; The plurality of support columns are disposed below the plurality of the first inspection wells; Each of the multiple support columns is equipped with a lifting unit, which is used to control the height of the corresponding support column to simulate the scenario where the drainage pipe network is at multiple pipe slopes.

3. The system according to claim 1, characterized in that, The offline storage device includes: a second regulating valve, a third submersible pump, a third water supply pipe, and an offline storage tank. The third sub-pipe includes: a main conveying pipe and a branch conveying pipe. The outlet of the delivery branch pipe is located inside the offline storage tank, and the second regulating valve is installed on the delivery branch pipe to regulate the water flow rate entering the offline storage tank through the delivery branch pipe. The main conveying pipe is equipped with a third regulating valve, which is used to regulate the water flow rate that directly enters the underground pipeline through the main conveying pipe. The third submersible pump is deployed in the offline storage tank and connected to the third water supply pipe; The third water supply pipe is connected to the outlet of the main conveying pipe, and the connection node between the third water supply pipe and the main conveying pipe is located between the third regulating valve and the outlet of the main conveying pipe. The third submersible pump is used to pump the sewage in the offline storage tank to the main transport pipe.

4. The system according to claim 1, characterized in that, The integrated intelligent simulation system for the drainage network also includes at least one mobile water tank vehicle; wherein, the mobile water tank vehicle includes a mobile water tank, mobile components, a fourth submersible pump, and a fourth water supply pipe; The mobile water tank vehicle is connected to the corresponding first inspection well; The mobile water tank, located on the mobile water tank vehicle, is used to store mixed water sources; The fourth submersible pump is deployed in the corresponding mobile water tank and connected to the fourth water supply pipe; The fourth submersible pump is used to pump the mixed water source to the drainage network.

5. The system according to claim 1, characterized in that, The rainfall device also includes a fifth submersible pump and a fifth water supply pipe, and the rainfall unit includes: a rainfall branch pipe and a rainfall nozzle; The fifth submersible pump is deployed in the rainwater pool and connected to the fifth water supply pipe; The fifth water supply pipe is connected to the rain nozzle through a corresponding rain branch pipe; The fifth submersible pump is used to pump water from the rainwater pool into the rainwater branch pipe; The rain nozzles are used to spray water to simulate corresponding rainfall scenarios.

6. The system according to claim 5, characterized in that, The rainfall device also includes a manifold and a second inspection well; The manifold is located below the at least one rainfall unit, and the water sprayed by the rainfall nozzles falls onto the manifold. The manifold is provided with multiple manifold holes, and a corresponding second inspection well is provided below each manifold hole. The second inspection well is connected to the underground pipeline. The manifold is also provided with a rainwater baffle. The manifold is used to allow water sprayed from the rain nozzles to pass through and enter the underground pipe.

7. The system according to claim 6, characterized in that, The rain-receiving device also includes a cover plate, rainwater inlet, and drainage branch pipe; The cover plate is connected to the manifold and is used to block the manifold. The rainwater inlet is located on the bottom plate of the rainwater baffle and is connected to the drainage branch pipe; The drainage branch pipe is connected to the outlet pool; The rainwater inlet is used to allow water sprayed from the rain nozzles to pass through and directly enter the outlet pool.

8. The system according to claim 1, characterized in that, The integrated intelligent simulation system for drainage pipe networks also includes underground water storage tanks; The underground pipeline is located in the underground water storage tank; The underground water storage tank is used to simulate the infiltration and external seepage scenarios of the underground pipeline.

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