CN-115292885-B - Water hammer protection and intelligent regulation and control system based on digital twin water supply engineering

CN115292885BCN 115292885 BCN115292885 BCN 115292885BCN-115292885-B

Abstract

The invention provides a digital twin-based water hammer protection and intelligent regulation system for a water supply project, which comprises a monitoring management system, a digital twin system, a data center, a distributed water hammer protection device, a transient process intelligent scheduling system, a control system hydraulic component performance and a water quantity and water pressure target and process safety, wherein the monitoring management system is used for monitoring various state information of the water supply project, the digital twin system is used for building a relevant hydraulic model and an analysis prediction algorithm model of the water supply project according to the hydraulic operation state, the equipment operation state and the equipment state of the water supply project, the data center is used for storing various information of the water supply project, the model, the mode, the case and the like of the water supply project, the distributed water hammer protection device is used for realizing the protection of a conventional water hammer, and the transient process intelligent scheduling system is used for controlling the hydraulic component performance of the system. The invention is based on-line monitoring, takes network cooperative sharing as a tie, takes digital twin and intelligent analysis as cores, and takes the running water quantity and pressure of a water supply network as targets, thereby ensuring the safety of daily operation and scheduling processes and realizing the water hammer protection and intelligent regulation and control system of the water supply engineering for monitoring and early warning of the whole life cycle of the water supply system.

Inventors

LUO JIANBIN
XU QIUHONG
WANG YU
HUANG JING
OU LITAO

Assignees

东方水谷碳科技有限公司
株洲珠华智慧水务科技有限公司
株洲南方阀门股份有限公司

Dates

Publication Date: 20260508
Application Date: 20220627

Claims (8)

1. Digital twinning-based water hammer protection and intelligent regulation and control system for water supply engineering, which is characterized in that the system comprises: the monitoring management system is used for monitoring hydraulic operation state information, equipment operation state information and equipment state information of the water supply engineering; the digital twin system is used for establishing a related hydraulic model and an analysis prediction algorithm model of the water supply project according to the operation state information of the water supply project, the operation state information of the equipment and the equipment state information; The data center is used for storing the running state information of the water supply engineering, the running state information of the equipment, the related hydraulic model of the water supply engineering and the analysis and prediction algorithm model; The distributed water hammer protection system is provided with self-adaptive water hammer protection equipment in a water supply project; The transient process intelligent scheduling system is used for scheduling the performance of the hydraulic component of the system, so as to realize the water pressure target of the scheduled water quantity and process safety; the data center includes: the model library is used for storing one or more of engineering design hydraulic modeling, model and algorithm model selection, modeling method and parameter setting; The strategy library is used for storing transient process control strategies under different working conditions; the case library is used for providing schemes under different scheduling scenes; The transient process intelligent scheduling system comprises a scheduling process: S101, acquiring scheduling demand data, wherein the scheduling demand data comprises a specific scheduling demand which needs to be adjusted under at least one of daily water quantity adjustment, abnormal adjustment and emergency treatment, acquiring initial working parameters of a water supply project through water demand data based on a steady-state hydraulic model of the water supply project, and checking whether water demand scheduling is achieved; S102, obtaining a control object and a control target of water supply engineering dispatching according to initial working parameters; S103, formulating a control strategy comprising the time sequence, the time point and the time length of the control object through an intelligent algorithm and a control strategy library; S104, a transient hydraulic model of a water supply project is applied to form a control strategy, safety check is carried out, if the control strategy meets the safety requirement, the control strategy is taken as an execution target, and an execution instruction is formed; s105, executing a control instruction, and simultaneously monitoring the hydraulic operation state of the pipe network in real time, wherein the hydraulic operation state comprises at least one of steady-state pressure, flow rate and equipment operation state, and transient water hammer or air monitoring data, and if no abnormality occurs, the scheduling target is achieved, and the water supply process safety meets the requirements; if the program is suspended when the abnormality occurs, judging whether a scheduling target is achieved; S106, if no abnormality occurs, the scheduling target is reached, the safety requirement is met, the monitoring result and the model analysis data are compared and analyzed, if the matching degree exceeds 70%, the scheduling process information can enter a control strategy library, and the accuracy of the steady-state model and the transient model is checked by combining the real-time monitoring data; if the abnormal situation occurs, judging whether the scheduling target is reached; if the scheduling target is not reached, continuing a new round of scheduling process; If the scheduling target is reached, analyzing the abnormal reason, and updating and optimizing the original scheduling scheme and model based on the abnormal reason.
2. The digital twinning-based water hammer protection and intelligent regulation system for water supply engineering according to claim 1, wherein the monitoring management system comprises a sensing layer, the sensing layer comprises one or more of hydraulic operation parameter acquisition equipment and equipment operation parameter acquisition equipment, the hydraulic operation parameter acquisition equipment is used for acquiring hydraulic related information in the water supply process, and the equipment operation parameter acquisition equipment is used for acquiring the state of the water supply engineering equipment.
3. The digital twinning-based water hammer protection and intelligent regulation system for water supply engineering according to claim 1, wherein the digital twinning system comprises a pipeline digital twinning module, and the pipeline digital twinning module is used for constructing a water hammer pipeline aging and failure model according to at least one of information of pipeline vibration, deformation, displacement and sound waves, and analyzing and predicting influences of loads of different levels on pipeline aging.
4. The digital twin-based water hammer protection and intelligent regulation system for water supply engineering according to claim 3, wherein the digital twin system further comprises a digital twin module for equipment, and the digital twin module for equipment is used for constructing a flow field analysis model and an equipment performance attenuation model of the pump pipe valve according to the running condition of the water supply engineering equipment so as to analyze and predict the health state of the water supply engineering equipment.
5. The digital twinning-based water hammer protection and intelligent regulation system for water supply projects according to claim 4, wherein the digital twinning system further comprises a hydraulic digital twinning module, and the hydraulic digital twinning module is used for simulating hydraulic changes of the water supply projects in the working process.
6. The digital twinning-based water hammer protection and intelligent regulation system for water supply projects according to claim 1, wherein the transient intelligent scheduling system further comprises an emergency intelligent scheduling process: s201, carrying out safety analysis according to a related hydraulic model and an analysis prediction algorithm model of the water supply project, and determining a safety working threshold of water supply project equipment; S202, if the actual working condition of the water supply engineering equipment exceeds a safe working threshold, extracting a corresponding transient process control strategy in a strategy library; S203, controlling the water supply engineering equipment according to the corresponding transient process control strategy.
7. The digital twinning-based water hammer protection and intelligent regulation system for water supply engineering according to claim 5, wherein the hydraulic digital twinning module further comprises model precision guarantee measures, and the verification content of the boundary conditions comprises one or more of check valve dynamic characteristics, control valve performance characteristics, air valve steady-state and dynamic characteristics and water pump full characteristics.
8. The digital twinning-based water hammer protection and intelligent regulation system for water supply projects of claim 7, further comprising a verification module, wherein the verification module at least comprises at least one of a hydraulic digital twinning module, a precision assurance measure module, a full-scale laboratory device and an actual project verification.

Description

Water hammer protection and intelligent regulation and control system based on digital twin water supply engineering Technical Field The invention relates to a digital twinning-based water hammer protection and intelligent regulation system for a water supply project, in particular to a digital twinning-based water hammer protection and intelligent regulation system for the water supply project. Background The water resource is in shortage and the space-time distribution is uneven in China, so that a plurality of water diversion and regulation projects are constructed for meeting the social and economic development. The pipeline water delivery mode is adopted by more and more water mixing projects due to obvious advantages in the aspects of water utilization rate, water quality assurance, occupied area and the like. The water hammer is the most important safety problem of the water diversion and regulation engineering, is a traffic accident in a pipeline, and the water hammer monitoring and the water hammer protection are core foundations of intelligent regulation and control of the water diversion and regulation engineering. The water diversion and regulation engineering is a typical complex system, the problems that water hammer calculation, process control valves, informatization and automation systems are not interactive exist at present, the system integrity, interface compatibility and capability effectiveness are lacked, and when the water diversion and regulation engineering is in debugging operation, the static pressure test can only be carried out, and the safety verification and real-time intelligent scheduling of extreme working conditions can not be carried out. Municipal water supply engineering is the blood vessel on which cities depend to survive. The underground pipeline used as the water for guaranteeing the living of residents, the production of enterprises, public service, fire fighting and the like is an important component of urban infrastructure. The water supply network has the problems that firstly, the water supply network operates under abnormal working conditions. In order to meet the development requirement of urban water supply, most urban water supply networks have the problem of different degrees that the transformation of the network system is delayed from the expansion of the water supply range and the water source change causes the inadaptation of the original network system. Secondly, the water supply leakage problem is serious. The ageing phenomenon of the pipeline is serious, and the problems of water leakage, water pipe rupture, bursting and the like often occur, so that the production and life of local enterprises and residents are affected, and larger profit loss is brought to water supply enterprises. Water hammer protection overview water hammer is the most important safety problem in the complex system of water supply engineering, and water hammer safety protection is the basic requirement of intelligent regulation and control. In 2007, the us AWWA C512 air valve standard increased the requirement for air valve water hammer protection. In 2010, IWA (international water agency) leakage control expert group, "water hammer protection initiative report," water hammer is a main cause of aging and damage of water supply network, and finally pipe explosion is generated. In 2013, the national delta institute of america published "water hammer analysis guidelines for water delivery and distribution systems". In 2018, the thirteenth international water hammer conference, "water hammer protection overall strategy", and "make the world safer and better-call for providing more data, check cases and guidelines required by water hammer simulation", and expect that a large-size laboratory meets the requirements of water hammer software evaluation. In 2020, a full-scale hydraulic laboratory with international leading level is built by using a south valve. The water hammer model checking test of extreme working conditions is carried out on 6 pumping stations with high lift in Guizhou, namely, the south valve, hunan university and China water department, and the water hammer model checking test is carried out in concurrent sheets. In 2021, national standard "general technical requirement for Water hammer monitoring System of Water supply pipe network" by the Ministry of Water science and technology, inc., litsea Zhuhua, published by "Water hammer protection technology development report". In 2022, the fourteenth international water hammer conference subject matter is to simplify the control system, drive models and data, how to meet the conventional water hammer protection with proper products, and the application of artificial intelligence and machine learning in intelligent regulation and control systems. Under the operation and maintenance mode of the traditional water supply engineering, when the pipeline is leaked and burst due to a water hammer, the problem is solved through l