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41 results about "Peak water" patented technology
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Peak water is a concept that underlines the growing constraints on the availability, quality, and use of freshwater resources. Peak water was defined in a 2010 peer-reviewed article in the Proceedings of the National Academy of Sciences by Peter Gleick and Meena Palaniappan. They distinguish between peak renewable, peak non-renewable, and peak ecological water in order to demonstrate the fact that although there is a vast amount of water on the planet, sustainably managed water is becoming scarce.
Systems and Methods of Reducing Peak Water Usage
InactiveUS20090043427A1Reduces high peak water use valueHigh use valueOperating means/releasing devices for valvesSelf-acting watering devicesWater useThird party
An irrigation management system reduces high peak water use values by utilizing a microprocessor disposed in an irrigation controller to (a) receive peak water use information from a source other than a water supplier (b) receive water use information at a consumer site, and (c) automatically derive a new irrigation schedule that is at least partly based on the information received. The new irrigation schedule preferably includes at least one of a modification in a default irrigation frequency or start time, a reduction in a default irrigation application duration, the use of a rolling-average in the determination of the new irrigation application duration and other changes or modifications to the default irrigation schedule that will provide for the reduction in high peak water use values. Additionally, the microprocessor will display to the water user and / or third parties details on the new irrigation schedule and information received from the water supplier.
Owner:AQUA CONSERVATION SYST
Automatic building control system and method
InactiveCN101923326AReduce speedAutomate managementFluid heatersDiagnostic recording/measuringStart timeAutomatic control
The invention provides an automatic building control system and an automatic building control method, in particular an automatic control system and an automatic control method for a boiler. In a valley power consumption stage, the boiler stores water as much as possible, and can meet the hot water requirement in a peak water consumption stage so as to realize staggered power consumption; and in a peak power consumption stage, under the condition of meeting the hot water requirement, the boiler is not started as far as possible or the starting time of the boiler is delayed as far as possible so as to reduce power consumption of hot water production and energy consumption cost for maintaining the constant temperature of the hot water of the boiler. The invention also provides an automatic building control method capable of pre-starting fresh air and dehumidifying equipment. The automatic building control method has the function of automatically pre-starting the fresh air and dehumidifying equipment, and ensures the air quality and dry and comfortable sheets and beddings of a spare room to be sold. The invention also provides a method for prompting room management exception. The method for prompting the room management exception comprises steps of judging whether a room is occupied according to real-time monitoring, comparing the data with that in a room sales database, and automatically judging whether the room management is exceptional so as to avoid room occupation in an exceptional management way to realize automatic room management.
Owner:李松青
Systems and methods of reducing peak water usage
InactiveUS8145359B2Operating means/releasing devices for valvesSelf-acting watering devicesWater useThird party
Owner:AQUA CONSERVATION SYST
Precipitation forecasting and support vector machine coupled real-time river flood peak water level forecasting method
InactiveCN108921345AHigh precisionImprove reliabilityClimate change adaptationForecastingSupport vector machineQuantitative precipitation forecast
The invention discloses a precipitation forecasting and support vector machine coupled real-time river flood peak water level forecasting method. According to the method, quantitative precipitation forecasting data is taken as influence factors and a support vector machine is used for forecasting future flood peak water levels of rivers. According to the method, quantitative precipitation forecasting is used for forecasting flood peaks, so that the forecasting periods can be brought ahead greatly, future flood peak water levels are predicted in real time via current precipitation forecasting information, and prediction results can be corrected in time according to weather changes, so that the precision and reliability of flood peak forecasting are improved continuously. According to the method, relationships between factors such as precipitation, risen water levels and the like and flood peak water levels are established on the basis of the support vector machine; and compared with river flood algorithms, the method has the advantages that the whole analysis process is rapid and convenient and the method is easy to be grasped and used by users.
Owner:HANGZHOU HYDROLOGY & WATER RESOURCES MONITORING STATION
Secondary water supply method and system
InactiveCN110777885AQuality assuranceNo wasteService pipe systemsWater mainsFrequency changerWater use
The invention discloses a secondary water supply method and system. The method comprises the steps that remote control equipment is connected with an inlet and outlet valve of water supply equipment and a pump; the remote control equipment uploads the water pressure situation of the pump room site, machine pump running data, frequency converter parameters, fault alarming and other information to awater supply dispatching center; the water supply dispatching center judges the user water utilization situation, and when water utilization is at the low peak or small-flow water utilization happensat night, the water supply equipment enters a pump stop pressure maintaining state; and when water utilization is at the high peak or the water supply amount of a water supply pipe network cannot meet the water utilization requirement within the water supply system range, the water pump is started, the water supply equipment is adjusted for water tank water supplementing, and the corresponding water supply pressure is maintained. According to the secondary water supply method and system, within the constant water outlet pressure range, the usage pressure and flow can be automatically adjustedaccording to the water flow changing simulation curve of various water utilization points, the water utilization amount is increased, the output flow is increased, accordingly, the requirement for high concentration at the peak water utilization is met, and the water utilization amount is reduced.
Owner:北京华夏源洁水务科技有限公司
Novel ecological wetland circulating water comprehensive cultivation system
PendingCN109906994ALow costReduce investmentAgricultural buildingsClimate change adaptationDiseaseThermal insulation
The invention relates to a novel ecological wetland circulating water comprehensive cultivation system. The system includes a funnel-shaped fish pond, a sewage drainage well, a sewage collection tank,a sieve filter, an ecological wetland and a thermal insulation greenhouse. The funnel-shaped fish pond is formed in a soil matrix, a PE anti-permeation film is laid on the soil matrix of the slope ofthe fish pond, geotechnical cloth is laid on the portion, near the upper edge of fish pond, of the PE anti-permeation film, the conical bottom of the fish pond is provided with a fish-pond sewage discharge hole connected with the PE anti-permeation film hermetically, the fish-pond sewage discharge hole is communicated with the sewage drainage well through an underground sewage discharge pipe, twowater outlets, in the sewage drainage well, of the sewage discharge pipe are communicated with a sewage discharge valve and an overflow pipe respectively, the peak water levels of the sewage discharge valve and the overflow pipe are lower than the upper edge of the fish pond, the sewage drainage well is communicated with the sewage collection tank, the ecological wetland is communicated with thesieve filter, the other end of the ecological wetland is communicated with a sterilization pond and an oxygen aeration pond in sequence, the oxygen aeration pond is communicated with the fish pond through the circulating pump, and a hemispherical heat preservation greenhouse is built above the fish pond. The system has less land occupation and less investment, the water environment of the fish pond is excellent, there are fewer fish diseases, fish grows fast, and energy conservation, ecological protection and high efficiency are achieved.
Owner:郑州市水产技术推广站
Urban water supply system leakage monitoring method based on dynamic district metering area (DMA) partitioning
ActiveCN110185092AAccurate measurementNormal water supplyService pipe systemsWater mainsUrban water supplyRemote control
The invention discloses an urban water supply system leakage monitoring method based on dynamic district metering area (DMA) partitioning. The urban water supply system leakage monitoring method comprises the following steps: a water supply network hydraulic model is established, and flow and pressure parameters of the model are corrected; traditional static DMA partitioning is determined, M connecting pipelines are arranged between DMAs, flowmeters are mounted on two of the pipelines, and remote control valves are mounted on the remaining connecting pipelines; DMA dynamic partitioning is achieved by dispatching the remote control valves; leakage alarm threshold values of the dynamic DMAs are determined; and the night flow of the dynamic DMAs is analyzed, specifically, the night flow of the dynamic DMAs is composed of legal water consumption and leakage ullage, the inlet flow and the outlet flow of the dynamic DMAs are analyzed, and if the night flow of one certain dynamic DMA exceedsthe corresponding leakage alarm threshold value at the night low-peak water utilization period, it is explained that leakage exists in the dynamic DMA. According to the method, water utilization tailends in a water supply system are reduced, and the water supply quality is improved; and the higher water supply pressure can be provided during the water supply peak so as to guarantee the peak water-supply quantity safety.
Owner:ZHEJIANG UNIV
Method for blocking water through artificial bend at river canal estuary sewage treatment facility grit basin
InactiveCN109403264ANo construction requiredLow costBarrages/weirsHydraulic engineering apparatusRiver mouthTerrain
The invention provides a method for blocking water through an artificial bend at a river canal estuary sewage treatment facility grit basin, belongs to the technical field of sewage treatment and an urban-rural fringe zone estuary river channel sediment treatment method and relates to a grit basin replacement process. The method is characterized in that a rolling stone dam is built in the place where water flow becomes from narrow to wide in the water flowing direction; the rolling stone dam is arranged in the widest place of the water flow at the river canal estuary; the ratio of the flow-passing surface of the widest place to the narrowest place of the river canal estuary is greater than or equal to 2; the water flow forms the bend at the rolling stone dam; the width of water flowing into the bend and the width of the water flowing out of the bend are equal; the width of the flow-passing surface is calculated according to the measured peak water flow of a river channel; and it is ensured that the distance from the water surface where the peak flow passes to the upper edge of the rolling stone dam is 10 cm or more. According to the method, water and sand go separate ways, clean water is led into the estuary and simultaneously sediment is cleared away mainly through rational utilization of the favorable terrain and the proper engineering layout.
Owner:北京市北运河管理处 +1
Direct water-taking water tank pressurization and water supply equipment
ActiveCN101086171AAvoid frequent bootProtection pressureFluid pressure control using electric meansService pipe systemsWater useTransducer
The invention discloses a direct water-intake water tank pressurized water supply equipment, the height of the water tank is higher than the water-using height of user end, the first pressure gage is installed on the water intake end of water pump unit, and the water outlet end of water pump unit is connected with the water intake mouth of water tank, the water outlet mouth on the water tank lower is connected with the user end, the water tank supply water to users leaning on gravity force, the liquid level transducer is installed in water tank, the liquid level transducer transmits the liquid level signals in water tank to control cabinet, the liquid levels are divided into water-supplementary liquid level and enough liquid level, and the water-supplementary liquid level is below the enough liquid level, the peak water-supply time and the non-peak water-supply time are set; the invention is suitable for high-rise building and supplies water for users in the gravity force water-supply mode, it uses full-automatic closed-loop control, it can operate automatically according the parameters of water tank liquid level, water-supply time and water intake pressure; the water pump unit does not start when the peak water-supply time or municipal pipe net pressure is over low, the system does not get water from the municipal pipe net, thereby the municipal pipe net pressure is protected, the equipment has low manufacturers cost, small holding space, stable and reliable water supply.
Owner:江苏瀚深水业科技发展有限公司
Non negative-pressure water supply system of high position water-storing tank
InactiveCN101424089AHigh degree of automationDoes not affect normal water useFluid pressure control using electric meansWater supply tanksWater storage tankTap water
The invention provides a non negative pressure water supply system with a high-position water storage tank, which consists of a tap water inlet pipe, a backflow preventer, a steady flow compensator, a vacuum suppressor, a water pump, the high position water storage tank, a control cabinet and a user water supply pipe, wherein the tap water inlet pipe is connected with the steady flow compensator and the vacuum suppressor and then is connected with the water pump; a water pump water outlet pipe is directly connected with the user water supply pipe; the tail end of the user water supply pipe is connected with the high position water storage tank; and a water outlet pipe of the high position water storage tank is connected with a water inlet pipe thereof at the bottom part of the high position water storage tank after passing through an electric valve and a check valve. The non negative pressure water supply system can effectively ensure that the system does not influence the normal use of water for the user water supply pipe when the water pump is stopped due to water off, power failure or insufficient water inflow of the tap water inlet pipe; and the system has the advantages of reliable water supply, energy conservation in operation, good water quality, and high automation degree, and is widely applied to a secondary pressurizing water supply system of which the water inflow of the tap water inlet pipe cannot satisfy the peak water use of the user water supply pipe periodically or frequent short-term water breaks occur.
Owner:张明亮
Energy-saving type non-negative-pressure water supply system for tall building
ActiveCN105484325AReduce power consumptionLower limit volume reductionService pipe systemsWater mainsWater useWater source
The invention provides an energy-saving type non-negative-pressure water supply system for a tall building. A municipal water supply inlet pipe is connected with an inlet end of an auxiliary water supply pipe and an inlet end of a main water supply pipe through a tee pipe coupling; an outlet end of the auxiliary water supply pipe and an outlet end of the main water supply pipe are respectively connected with one tee pipe coupling, and an outlet end of the tee pipe coupling is connected with an inlet end of a water supply pipe for the tall building. The main water supply pipe is sequentially connected with a third stop valve, a main variable frequency pump, a third pressure gage and a tall building pressure-stabilizing tank in series. According to the energy-saving type non-negative-pressure water supply system, pressure-superposed adjustment can be carried out according to the water use amounts of different time periods, so that the secondary water supply at the peak water use periods of the tall building is guaranteed, and negative pressure can not be caused to a municipal water supply network; all water supply energies in the municipal water supply network can be utilized, so that the power consumption of a booster pump in a secondary water supply system is the minimum; a water-source water tank can not cause water quality pollution; the volume of the water-source water tank is reduced under the premise that the water use amounts of the water use periods of the tall building are guaranteed, and thus the construction cost of the secondary water supply system of the tall building is reduced.
Owner:湖北泉洁二次供水工程有限公司
Secondary water supply peak shifting scheduling system
ActiveCN113240314AEfficient collectionAvoid low water pressureGeneral water supply conservationDesign optimisation/simulationWater useSystems management
The invention discloses a secondary water supply peak shifting scheduling system, which belongs to the technical field of secondary water supply system management, and comprises a data acquisition module, and the output port of the data acquisition module is connected with a data preprocessing module; wherein the output port of the data preprocessing module is connected with a model scheduling analysis module and a residential water load model establishment module, and an output port of the residential water load model establishment module is connected with an input port of the model scheduling analysis module. According to the method, reliable time sequence data transmission, storage and analysis technologies of a secondary water supply system are adopted, residential water consumption data are effectively collected, and a residential water consumption load data model is established in a machine learning mode; on the basis of the capacity of the secondary water supply tank, the dispatching thought of off-peak water supply is provided, and the problem of insufficient water pressure in the water consumption peak period is effectively avoided; therefore, the problems that a large amount of water is reserved in the water tank in a traditional water supply mode, a dead water area is formed, and water quality is affected are effectively solved.
Owner:浙江千问科技有限公司
System for fundamentally preventing urban inland inundation
The invention relates to a treatment system for preventing urban inland inundation, in particular to a system for fundamentally preventing the urban inland inundation. According to the system for fundamentally preventing the urban inland inundation, drainage shafts are connected with a sewer, particularly a plurality of underground water ditches are arranged among residential areas and are connected with the sewer, a gate is arranged at the connection position of each water ditch and the sewer, and a plurality of water inlet holes are formed in the underground water ditches. The underground water ditches are arranged, so that the sewer is further relieved when heavy rain comes in the city, and stored water in the water ditches is slowly drained into the sewer on sunny days. The system has the advantages of preventing the inland inundation and achieving the beneficial approaches of rain regulation emission and off-peak water drainage. Rivers and watercourses are regulated from the source, the road in the city is kept to be smooth and have no accumulated water through the off-peak water drainage method, safety of life of people in the city is ensured, convenience is brought for people to go out, city attractiveness is ensured, and the production and daily life of people are not affected by bad and extreme weather.
Owner:孙中国
Secondary water supply optimization method and device for reducing pressure of municipal pipe network
PendingCN114575413ARelieve pressureReduce water pressureService pipe systemsWater mainsWater useWater storage
The invention discloses a secondary water supply optimization method for reducing municipal pipe network pressure, which comprises the following steps: S1, collecting historical water supply data, and calculating to obtain a daily water consumption reference curve and a water consumption peak time period; s2, taking the time that the starting time of the water consumption peak period is advanced by a certain advance time amount as the preposed time, and fully storing the water tank in advance from the preposed time; and S3, carrying out peak shifting water inflow stabilizing operation according to the actual water storage amount of the water tank in the water consumption peak period. The invention further discloses a device which comprises a control center, a regulating valve, a flow meter and a liquid level meter. According to the method, a daily water reference curve and daily average water flow are calculated according to historical water supply data, average water replenishing flow is calculated on the basis of the daily average water flow, a water tank is fully filled with the average water replenishing flow in advance before the peak water consumption period, and peak shifting water inflow stabilizing operation is carried out by fully utilizing the adjustable water storage volume of the water tank in the peak water consumption period; therefore, the pressure of a water pipe network during the peak period of water consumption is reduced, water pressure and water flow velocity fluctuation in the pipe network are reduced, and energy consumption is saved.
Owner:沣泰水务科技(杭州)有限公司
Stored energy air pressure self-control continuous pressure water supply system
PendingCN108005171ATake advantage ofAvoid secondary pollutionService pipe systemsWater mainsStored energyTap water
The invention provides a stored energy air pressure self-control continuous pressure water supply system, which comprises a breathing self-control adjuster A, a container B, a water outlet pipe C, anescape pipe E, a water inlet pipe F and a water hose Y; the upper part of the container B is equipped with the breathing self-control adjuster A, and the lower part is equipped with the water outlet pipe C, the escape pipe E, and the water inlet pipe F; the water inlet pipe F is connected with a running water pipeline through a water supply pipe G, and a water pump D is installed on the water outlet pipe C; the pipeline of the water outlet pipe C is connected to the water hose Y, and a detecting gauge J is arranged on the water hose Y; the container B is a closed container. The stored energy air pressure self-control continuous pressure water supply system can store peak water energy of running water and fully use the water energy of the running water; the water supply system is adjusted by the breathing self-control system, and the system is closed; the water supply system is safe and health, energy-saving and environment-friendly.
Owner:TIANJIN BRITISH IRON TECH CO LTD
Non-negative pressure water supply device capable of intelligently adjusting high-peak, medium-peak and low-peak water supply flow
PendingCN114541522ASimple structureEasy to operateService pipe systemsWater mainsWater storageSurge tank
The invention provides a non-negative pressure water supply device capable of intelligently adjusting high-peak, medium-peak and low-peak water supply flow, and belongs to the technical field of intelligent water supply.The device comprises an adjusting system and a control system.The adjusting system comprises a base, a surge tank, a collecting pipe, a first-stage booster pump, a second-stage booster pump, a water outlet pipe and an air pressure tank, and a buffer cavity and a water storage cavity are formed in the surge tank; a first connecting pipe and a second connecting pipe are arranged at the bottom of the surge tank and are both connected with a collecting pipe, at least two groups of shunting branch pipes are arranged on the other side of the collecting pipe, the other ends of the shunting branch pipes are communicated with a water outlet pipe, and a first-stage booster pump is arranged on each group of shunting branch pipes; the second-stage booster pump is arranged on the second connecting pipe, the air pressure tank is communicated with a water outlet pipe, a second electric pressure gauge is arranged on the water outlet pipe, a third electric pressure gauge is arranged at the top of the air pressure tank, the control system comprises a control cabinet, a controller is arranged in the control cabinet, and a display screen and operation buttons are arranged on the front side of the control cabinet.
Owner:王坤
Flood inundation prediction method based on remote sensing
PendingCN112381285ASmall amount of calculationConducive to flood simulation and predictionClimate change adaptationForecastingHydrometrySoil science
The invention belongs to the field of flood disaster early warning, and provides a flood inundation prediction method based on remote sensing, and the method specifically comprises the steps: obtaining the upstream flood peak water level of a target drainage basin through calculation according to the maximum rain intensity of the region where the target drainage basin is located and an upstream flood peak water level conversion model; predicting the downstream flood peak water level of the target drainage basin according to the upstream flood peak water level and downstream flood peak water level prediction model of the target drainage basin; and predicting the maximum flooding range of the target drainage basin by adopting a flood filling model. The river hydrological law is analyzed by utilizing hydrological parameter information monitored by remote sensing, early warning is further performed on flood disasters of medium and small watersheds of developing countries or underdevelopedareas lacking hydrological actual measurement data according to the hydrological law, and the hydraulic gradient existing in the upstream and downstream water surfaces of a river reach is fully considered, thereby facilitating the flood inundation simulation prediction under condition that flood evolves to downstream. The method has the advantages of being small in calculated amount, high in accuracy and low in cost.
Owner:AEROSPACE INFORMATION RES INST CAS
Water supply device and water supply method
PendingCN113089776AMake full use of water storage capacityAvoid water outagesService pipe systemsWater mainsWater storageWater volume
The invention relates to the technical field of municipal water supply and drainage, in particular to a water supply device and a water supply method. The water supply device comprises a water tank and a liquid level sensor, wherein the liquid level sensor is used for measuring the liquid level change in the water tank, the water tank communicates with a water supply pipeline through a water conveying pipeline, and a control valve is arranged on the water conveying pipeline. According to the water supply device, the liquid level change in the water tank is determined by the liquid level sensor, a control valve is controlled so as to provide different water supply modes in the peak water supply time and the idle water supply time, when the water supply time is idle, the amount of secondary water supply is small, intermittent water supply is performed on the water tank by controlling the control valve, additionally, the water tank is replenished to the preset liquid level in the set time period before the water supply peak time, then water supply is stopped, the water storage capacity of the water tank is fully utilized, and the problem that water supply of the water tank is cut off due to serious pressure relief of a pressure relief area of the water tank because the liquid level in the water tank is low due to large water amount of secondary water supply at the water supply peak time is solved.
Owner:殷晓岚 +1
Intelligent water affair box type non-negative-pressure pressurization water supply equipment
The invention relates to the technical field of intelligent water affairs, and discloses intelligent water affair box type non-negative pressure pressurization water supply equipment. The non-negativepressure pressurization water supply equipment comprises a fixed bottom plate, wherein a box body is fixedly connected to the right side of the upper surface of the fixed bottom plate, a stabilizingcylinder is fixedly connected to the upper middle portion of an inner cavity of the box body, and a water supply compensation box is fixedly arranged on the left side of an inner cavity of the stabilizing cylinder. According to the intelligent water affair box type non-negative pressure pressurization water supply equipment, through cooperation of a tap water receiving pipe, a flow stabilizing andcompensation device, the water supply compensation box and a flow adjusting device, when the water supply amount in the tap water receiving pipe is small, an adjusting block slides rightwards under the elastic force of an elastic telescopic part, the distance between the cross section of a circular flow passing hole and the cross section of a conical flow limiting block is gradually increased, and then compensated water is introduced through a gap existing between the circular flow passing hole and the conical flow limiting block, so that the water supply pressure intensity of a water supplypipeline is kept to form dynamic balance, underpressure compensation and flow stabilization effects are provided for the intelligent water affair box type non-negative pressure pressurization water supply equipment, and the comfort degree of a user during peak water use is improved.
Owner:杭州艾洋洋信息科技有限公司
Control method of water consumption equipment and water consumption equipment
PendingCN114594691AReduce loadReduce water pressureComputer controlService pipe systemsWater usePeak water
The embodiment of the invention provides a water consumption equipment control method and water consumption equipment, the method is applied to smart home equipment, and the method comprises the following steps: acquiring water consumption information corresponding to the water consumption equipment and position information corresponding to the water consumption equipment; wherein the water consumption information comprises water consumption time; acquiring a water consumption peak period and a non-water consumption peak period corresponding to the position information; when it is determined that the water consumption time belongs to the water consumption peak period, peak water consumption prompt information is output, and user response information corresponding to the peak water consumption prompt information is obtained; according to the user response information, operation is carried out in the non-water-consumption peak period, concentrated water consumption of the water consumption equipment is avoided, the load of the water supply equipment is reduced, and therefore the water supply pressure of the water supply equipment is reduced, and the service life of the water supply equipment is prolonged.
Owner:QINGDAO HAIER WASHING MASCH CO LTD +1
A remote control operation parameter method for constant pressure water supply system application
ActiveCN112609773BIncrease speedHigh frequencyFluid pressure control using electric meansService pipe systemsWater useControl theory
A method for remotely adjusting and controlling operating parameters in a constant-pressure water supply system, using a single-chip microcomputer module, a data calculation unit, a data control unit, a data receiving unit, and a data dispatching unit as tools for remotely adjusting and controlling operating parameters in a constant-pressure water supply system; constant-pressure water supply The method for remotely controlling the operating parameters of the system application is divided into three steps. The present invention is based on the PLC control subsystem of the existing secondary water supply system, only a small number of components are added, the overall cost is low, and the use is convenient. The PLC controls the water pump to maintain a relatively low water volume and low water pressure to supply water to the user-side pipeline to achieve the purpose of energy saving; during the peak water consumption period, the PLC can increase the frequency of the inverter in real time without changing the original pressure setting threshold, and thus the water pump. The speed increases, the power increases, and the water pressure on the user side increases, thereby ensuring that high-rise residents can use water normally during peak water consumption periods.
Owner:薛金山
System for fundamentally preventing urban inland inundation
The invention relates to a treatment system for preventing urban inland inundation, in particular to a system for fundamentally preventing the urban inland inundation. According to the system for fundamentally preventing the urban inland inundation, drainage shafts are connected with a sewer, particularly a plurality of underground water ditches are arranged among residential areas and are connected with the sewer, a gate is arranged at the connection position of each water ditch and the sewer, and a plurality of water inlet holes are formed in the underground water ditches. The underground water ditches are arranged, so that the sewer is further relieved when heavy rain comes in the city, and stored water in the water ditches is slowly drained into the sewer on sunny days. The system has the advantages of preventing the inland inundation and achieving the beneficial approaches of rain regulation emission and off-peak water drainage. Rivers and watercourses are regulated from the source, the road in the city is kept to be smooth and have no accumulated water through the off-peak water drainage method, safety of life of people in the city is ensured, convenience is brought for people to go out, city attractiveness is ensured, and the production and daily life of people are not affected by bad and extreme weather.
Owner:孙中国
A method for forecasting river flood peak water level based on conditional probability distribution
ActiveCN109344993BStrong theoretical foundationReduce arbitrarinessWeather condition predictionClimate change adaptationRiver routingEnvironmental engineering
The invention discloses a river channel flood peak water level prediction method based on conditional probability distribution. By counting the upstream and downstream flood peak water levels and propagation time series, on the basis of determining the marginal probability distribution function, the Copula function is used to respectively construct the upstream flood peak water level and the downstream flood peak water level. , the two-dimensional joint probability distribution function of the propagation time, and then solve the conditional probability distribution function of the downstream flood peak water level and propagation time when the upstream flood peak water level is given, and then predict the downstream flood peak water level and its occurrence time. Based on the probability theory and mathematical statistics method, the present invention quantitatively provides the regression curve of the flood peak water level of the upstream section, the flood peak water level of the downstream section, and the flood propagation time. The arbitrariness brought about by freehand drawing is more objective and reasonable.
Owner:江西省水利科学研究院
Urban peak-avoiding water supply method and system
ActiveCN112482488AReduced need for water abstractionPressure balanceService pipe systemsWater mainsWater useWater storage
The invention provides an urban peak-avoiding water supply method and system, and relates to the technical field of urban water supply. The method comprises the steps that S1, urban water supply dataand state data of all water storage tanks are obtained respectively; S2, peak-avoiding time periods of urban water are obtained through analysis according to the urban water supply data; S3, at leastone water storage tank is extracted according to the state data and the peak-avoiding time periods to serve as a to-be-scheduled water tank, and a water storage scheduling plan of the to-be-scheduledwater tank is obtained through processing; and S4, all the to-be-scheduled water tanks are controlled to conduct peak-avoiding water storage according to the water storage scheduling plan to achieve peak-avoiding water supply. The urban peak-avoiding water supply method and system have the advantages that peak-avoiding regulation and storage are conducted by controlling the water storage tanks, sothat the water storage tanks actively conduct water storage in the peak-avoiding time periods, the water taking demand of a municipal pipe network in the peak water consumption time period is reduced, the pressure of the municipal pipe network is balanced, the urban water supply and demand contradiction is effectively relieved, the water consumption experience of residents is guaranteed, and theservice capacity of water business enterprises is effectively improved.
Owner:SHANGHAI WPG WISDOM WATER CO LTD
Direct water-taking water tank pressurization and water supply equipment
ActiveCN100507167CProtection pressureReduce manufacturing costFluid pressure control using electric meansService pipe systemsWater useTransducer
The invention discloses a direct water-intake water tank pressurized water supply equipment, the height of the water tank is higher than the water-using height of user end, the first pressure gage is installed on the water intake end of water pump unit, and the water outlet end of water pump unit is connected with the water intake mouth of water tank, the water outlet mouth on the water tank lower is connected with the user end, the water tank supply water to users leaning on gravity force, the liquid level transducer is installed in water tank, the liquid level transducer transmits the liquid level signals in water tank to control cabinet, the liquid levels are divided into water-supplementary liquid level and enough liquid level, and the water-supplementary liquid level is below the enough liquid level, the peak water-supply time and the non-peak water-supply time are set; the invention is suitable for high-rise building and supplies water for users in the gravity force water-supply mode, it uses full-automatic closed-loop control, it can operate automatically according the parameters of water tank liquid level, water-supply time and water intake pressure; the water pump unit does not start when the peak water-supply time or municipal pipe net pressure is over low, the system does not get water from the municipal pipe net, thereby the municipal pipe net pressure is protected, the equipment has low manufacturers cost, small holding space, stable and reliable water supply.
Owner:江苏瀚深水业科技发展有限公司
Liftable flood control embankment and method
ActiveCN113622374BBlock outflowIncrease the function of flood drainageDamsBarrages/weirsRebarFlood control
Owner:山东乾元工程集团有限公司东营维修养护分公司
Energy-saving high-rise non-negative pressure water supply system
ActiveCN105484325BReduce power consumptionLower limit volume reductionService pipe systemsWater mainsWater useWater source
The invention provides an energy-saving type non-negative-pressure water supply system for a tall building. A municipal water supply inlet pipe is connected with an inlet end of an auxiliary water supply pipe and an inlet end of a main water supply pipe through a tee pipe coupling; an outlet end of the auxiliary water supply pipe and an outlet end of the main water supply pipe are respectively connected with one tee pipe coupling, and an outlet end of the tee pipe coupling is connected with an inlet end of a water supply pipe for the tall building. The main water supply pipe is sequentially connected with a third stop valve, a main variable frequency pump, a third pressure gage and a tall building pressure-stabilizing tank in series. According to the energy-saving type non-negative-pressure water supply system, pressure-superposed adjustment can be carried out according to the water use amounts of different time periods, so that the secondary water supply at the peak water use periods of the tall building is guaranteed, and negative pressure can not be caused to a municipal water supply network; all water supply energies in the municipal water supply network can be utilized, so that the power consumption of a booster pump in a secondary water supply system is the minimum; a water-source water tank can not cause water quality pollution; the volume of the water-source water tank is reduced under the premise that the water use amounts of the water use periods of the tall building are guaranteed, and thus the construction cost of the secondary water supply system of the tall building is reduced.
Owner:湖北泉洁二次供水工程有限公司
A Leakage Monitoring Method of Urban Water Supply System Based on Dynamic DMA Partition
ActiveCN110185092BImprove water qualityReduce water usageService pipe systemsWater mainsWater useUrban water supply
The invention discloses an urban water supply system leakage monitoring method based on dynamic district metering area (DMA) partitioning. The urban water supply system leakage monitoring method comprises the following steps: a water supply network hydraulic model is established, and flow and pressure parameters of the model are corrected; traditional static DMA partitioning is determined, M connecting pipelines are arranged between DMAs, flowmeters are mounted on two of the pipelines, and remote control valves are mounted on the remaining connecting pipelines; DMA dynamic partitioning is achieved by dispatching the remote control valves; leakage alarm threshold values of the dynamic DMAs are determined; and the night flow of the dynamic DMAs is analyzed, specifically, the night flow of the dynamic DMAs is composed of legal water consumption and leakage ullage, the inlet flow and the outlet flow of the dynamic DMAs are analyzed, and if the night flow of one certain dynamic DMA exceedsthe corresponding leakage alarm threshold value at the night low-peak water utilization period, it is explained that leakage exists in the dynamic DMA. According to the method, water utilization tailends in a water supply system are reduced, and the water supply quality is improved; and the higher water supply pressure can be provided during the water supply peak so as to guarantee the peak water-supply quantity safety.
Owner:ZHEJIANG UNIV
Plugging agent and process for adjusting water absorption profile of immovable pipe string in water injection well
The invention provides a plugging agent for adjusting the water absorption profile of the immovable pipe string of the water injection well and a process for adjusting the water absorption profile. The process includes: injecting a certain amount of the plugging agent for adjusting the water absorption profile of the immobile pipe string of the water injection well , to temporarily or permanently block some or all of the high-permeability dominant channels; after the high-permeability dominant channels are blocked, chelate acid is injected online into the water injection well to realize the acidification transformation of the low-permeability or formation pollution section . The process for adjusting the water absorption profile of the fixed pipe string of the water injection well provided by the present invention can solve the problem of peak water absorption or uneven water absorption in the water injection well section with dominant channels, and then realize the purpose of uniform water absorption in different sections in the layer.
Owner:PETROCHINA CO LTD
A digital integrated frequency conversion complete set of secondary water supply equipment
ActiveCN112982550BReduce work energy consumptionLow costService pipe systemsWater mainsWater useWater storage tank
The invention provides a digital integrated frequency conversion complete set of secondary water supply equipment, which relates to the technical field of secondary water supply, and includes a water storage tank mechanism of an air conditioner host, a water inlet mechanism, a frequency conversion water supply mechanism, a stabilized gas tank mechanism, a water storage tank outrigger, an anti-skid pad, The voltage-stabilizing valve and the municipal water supply pipe have the beneficial effect that, by being provided with a frequency-converting water supply mechanism, during the peak water consumption period, the control valve and the one-way valve close to the side of the pressure-stabilizing gas tank mechanism are opened, and the valve close to the voltage-stabilizing valve is closed. One-way valve, and all three water pumps are turned on, so that the secondary water supply equipment can supply water to the greatest extent, and ensure the stability of the user's water use. When using water at night, close the control valve and the one-way valve on the side of the pressure-stabilizing gas tank mechanism. , open the one-way valve close to the pressure-stabilizing valve, and only open one water pump, while satisfying the user's water stability, reducing the working energy consumption of the water supply equipment, reducing the cost of the water supply equipment, and improving the economic performance of the water supply equipment.
Owner:安徽海沃特水务股份有限公司
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