63results about How to "Guarantee the safety of water supply" patented technology

The invention relates to a method for oxidative degradation of organic pollutants in water by compounding a heterogeneous iron-based material with sulfite under an aeration condition. According to the invention, the oxygen content of a water body is increased through air aeration or oxygen aeration of the water body; the iron-based material and sulfite are added into the water body; and a series of reactions are carried out so as to produce active oxidizing agents like free sulfate radicals, free hydroxyl radicals and free monopersulfate radicals for degradation of organic pollutants. The method provided by the invention is efficient, economic, green, simple and wide in an application scope, ensures standard-reaching discharge of refractory organic wastewater produced in industrial production, and can guarantee water supply safety for aquatic products with organic contaminated water as a water source.

The invention discloses a one-frequency one-pump constant pressure water supply control system, which comprises a control unit (6) for controlling the operation of the system and controlling the output frequencies of frequency converters, a human-machine interface (7) for setting parameters of the system and monitoring operational data, the frequency converters (5a, 5b and 5c) for controlling the rotating speeds of water pump motors, and sensing instrument units (1, 3 and 4) connected with the control unit and used for acquiring external feedback information, wherein according to the control system, water pumps (2a, 2b and 2c) in a controlled pump group are matched with the frequency converters and controlled by adopting a common-frequency and common-speed control technology to implement constant pressure water supply.

The invention provides a high efficiency fluidization upward flow multilayer composite filter material biological filter tank coupled with ozonation and a water treatment method thereof, relating to a biological filter tank and a water treatment method using the biological filter tank. The biological filter tank is composed of an upper filter material, a medium filter material, a lower filter material and a supporting layer, wherein the upper filter material is active carbon, anthracite or biological ceramsite, the medium filter material is modified zeolite, natural zeolite or synthetic zeolite and the lower filter material is a phosphorus functional material. The filter tank is characterized by fast start, a complex and stable biological phase, great biomass, high activity, strong impact resistance, a filter material expansion rate of 0% to 50%, small resistance at the head of the filter tank, high mass transfer efficiency of materials, oxygen and pollutants, a high utilization rate of filter layers and filter materials and small possibility of occurrence of hardening of the filtering materials. The filter tank is applicable to treatment of raw water in which the concentration of water source phosphorus, ammonia nitrogen and organic pollutants fluctuates and can stably operate at a low temperature.

The invention discloses a method for determining biotoxicity of water quanlity based on movement velocity change of zebrafish. The method comprises the following steps: domesticating zebrafish; carrying out acute toxicity test on the domesticated zebrafish and calculating the 48 hour medial lethal concentration; and carrying out behavior test on the domesticated zebrafish, determining the movement velocity change of the zebrafish and judging the biotoxicity of water quality. With movement velocity of the zebrafish in a water environment as a biomarker, the biotoxicity of pollutants is evaluated; the movement behavior of the zebrafish in the water environment is tracked and captured; the movement track of the zebrafish is visually observed at any time; the speed index is determined in real time; quantitative evaluation for determining the biotoxicity of water quality by employing the zebrafish movement velocity change is realized; water quality fluctuation is displayed within a short period of time; the biological monitoring and early warning timeliness, sensitivity and accuracy are improved; a technical support is provided for sudden water body pollution; and the water supply quality safety is ensured.

An energy-saving and water-saving device for distributed control over industrial circulating water comprises an operating system, a central computing control system, a PID control system, an on-site execution system I, an on-site execution system II and an on-site instrument system. Detection instruments of the on-site instrument system are distributed at corresponding detection sites in pipelines and circuits of a soft water closed circulation system and corresponding detection sites in pipelines and circuits of a purified water circulation system. In a method for achieving distributed control over the industrial circulating water through the device, based on the principle of centralized management and distributed control, the central computing control system issues an execution instruction to the on-site execution system I and the on-site execution system II according to parameters set by the operating system, meanwhile constantly carries out computation, analysis and comparison on data fed back by the on-site instrument system and the on-site execution system II and a set value, and gives an adjustment and correction instruction so as to guarantee normal operation of the water circulation systems and achieve efficient integration of industrialization and informationalization. The device is completely intelligent, high in automation degree, easy and convenient to operate, efficient, safe, reliable and low in environmental pollution and saves energy and water.

The invention relates to a freshwater-capturing and accumulating-type emergency water supply dispatching method in salt-tide affected areas and belongs to the technical field of water supply safety guarantee. The method includes the steps of S1, integrating Zhujiang river estuary-river network integral salt-tide mathematical models to accurately determine outer salinity boundaries and finely formulate water gate operation schemes in joint dispatching of delta joint gate pump groups; S2, establishing a water gate-river-reservoir-pump station joint dispatching based freshwater-capturing and accumulating-type emergency water supply dispatching model, wherein four modules for water gate freshwater capturing, river freshwater accumulating, reservoir salt dispatching and pump station freshwater supplying are arranged, and expression forms of the models include objective function and constraint conditions; S3, establishing a freshwater-capturing and accumulating-type emergency water supply dispatching evaluation index system of the salt-tide affected areas, namely a freshwater-capturing and accumulating-type evaluation index system; S4, determining a regional freshwater capturing and accumulating scheme by the aid of the freshwater-capturing and accumulating-type emergency water supply dispatching method in salt-tide affected areas. With the method, water supply safety in dry seasons in the salt-tide affected areas is effectively guaranteed.

The invention discloses a method for determining water quality biotoxicity, which comprises the following steps: domesticating zebra fish; performing acute toxicity test of the domesticated zebra fish and calculating medial lethal concentration of 48 hours; performing behavioristics test of the domesticated zebra fish, determining movement speed change of the zebra fish and judging water quality biotoxicity. The movement speed of the zebra fish in a water environment is used as a biomarker to evaluate the biotoxicity of a pollutant, the movement behavior of the zebra fish in the water environment is traced and captured, the movement trail of the zebra fish is intuitively observed anytime, a speed index is determined in real time, the quantified evaluation of the water quality biotoxicity is determined by using the movement speed change of the zebra fish, a water quality fluctuation condition is reflected in short time, timeliness, sensitivity and accuracy of biological monitoring early warning are improved, an early warning technical support is provided for acute water body pollution, and safety of water quality of supplied water is guaranteed.

The invention discloses a micro-polluted water source deep treatment and purification system and method. The system comprises a regulation pool, an ozone pre-oxidation tower, a magnetic loading and flocculation system and an ozone-biological activated carbon filter system; and the magnetic loading and flocculation system is also connected with a medicament blending and dosing system and a magnetic powder recovery and sludge treatment system. The method comprises the following steps: I, pre-oxidation; II, flocculation reaction; III, magnetization; IV, growing to be mature; V, natural settling; VI, mud-water separation; VII, oxidation and disinfection; VIII, physical adsorption; IX, disinfection; and X, delivery to a user. The micro-polluted water source deep treatment and purification system and method integrate magnetic loading and flocculating sediment, ozone-biological activated carbon filter and a conventional water purification and treatment process to form an efficient deep treatment and purification process system.

The invention discloses a system for evidence obtaining in water body pollution-discharge cruise monitoring. The system comprises a housing, as well as a pollution-discharge information obtaining unit, a data acquisition and processing unit, an underwater video camera, a control unit, a wireless communication unit and a power propeller which are installed on the housing, wherein the data acquisition and processing unit is used for calculating a pollutant concentration value or the standard-exceeding degree of a comprehensive toxicity index according to the water body pollution-discharge data obtained by the pollution-discharge information obtaining unit in real time, and sending to the control unit; the control unit is used for starting the underwater video camera to carry out pollution-discharge process shooting evidence obtaining while identifying that the concentration value of the pollutants discharged by a water area or the standard-exceeding degree of the comprehensive toxicity index achieves the maximum value. The system disclosed by the invention is capable of carrying out cruise monitoring on the hidden illegal pollutant discharge and sudden water pollution of various water bodies with a single pollutant discharge port or water intake port, realizing space-time continuous coverage monitoring for large-area water areas, a plurality of pollutant discharge ports and sudden water pollution through system marshalling, and avoiding the law enforcement supervision blind areas of water conservancy and environmental protection departments on water body hidden pollution and other illegal pollutant discharge behaviours.

The invention discloses a water quality and water ecology integrated early warning system, including a water prediction model, a runoff and pollution load forecasting model, a water quality forecasting model for water taking area, a water pipe water quality forecasting model and a water receiving area water ecological change forecasting model. A water quality and water ecology integrated early warning system is established through coupling, by carrying out mutual conversion processing on water quality variable parameters among different models, the synchronization calibration of the parametersof the integrated forecasting system is carried out through a genetic algorithm; the actual measurement data are substituted into the forecasting process of each model; continuous correction simulation forecasting result, the precision of a subsequent calculation result is further improved; a relatively accurate water quality and water ecology integrated early warning result is obtained; throughthe rainfall driving system, the water ecological change process of the water receiving area in future days can be forecasted, and the important technical support is provided for timely pre-judging the water environment and water ecological risks of the water receiving area, making an optimized dispatching scheme for various possible risks and guaranteeing the water supply safety of drinking water.

The invention discloses a water conservancy project intelligent regulation control system and regulation control method for guaranteeing water supply safety of a river mouth. The system comprises an environment element in-situ monitoring module, an environment element information management control module, an upstream remote regulation control module and a downstream local intelligent emergency module, wherein the environment element in-situ monitoring module is used for monitoring hydrology, water power and water environment elements of key positions of an upstream reservoir and a downstream river mouth in real time; the environment element information management control module is used for managing and controlling hydrology, water power and water quality element information of different sources and different types; the upstream remote regulation control module is used for implementing long-distance accurate optimization scheduling on the upstream reservoir in a water supply safety sensitive period of the river mouth to improve overall water supply safety of the downstream river mouth; and the downstream local intelligent emergency module can implement targeted emergency measures in the downstream local position through intelligent response for the implementation effect of the upstream remote regulation control module to ensure water supply safety of emphatically protected water areas of the river mouth.

The invention discloses a magnetic flocculation enhanced membrane integration device for oil sand tailing wastewater and a treatment method for the oil sand tailing wastewater and relates to a devicefor treating the oil sand tailing wastewater and a wastewater treatment method. The invention aims to solve the problem of over-high dosage of a coagulant during pretreatment of the oil sand tailing wastewater in an existing sewage treatment method. The device comprises a static pipeline mixer, a flocculating tank, a setting pond, a sludge dewatering device, a magnetic powder recovering device, asludge outward transporting device, a filter tank, an ultrafiltration membrane device, an ultrafiltration water producing tank, a nanofiltration membrane device, a wastewater tank, a nanofiltration water producing tank and a scale inhibitor medicine tank; the static pipeline mixer is connected with the flocculating tank; the flocculating tank is connected with the setting pond; the setting pond isconnected with the filter tank. The method comprises the following steps: a water inlet valve is opened, and a raw water pump is started; raw water is mixed with a coagulant in the static pipeline mixer, and a mixture flows into the filter tank through the flocculating tank and the setting pond; the mixture enters an ultrafiltration membrane, ultrafiltration produced water enters the nanofiltration membrane device, and nanofiltration produced water enters the nanofiltration water producing tank. The magnetic flocculation enhanced membrane integration device disclosed by the invention is usedfor treating the oil sand tailing wastewater.

The invention provides a method for ensuring water quality stability of a water supply network during switching of water sources. The method comprises following steps: testing water quantity corrosivity determination indicators of two water sources and making comparisons; directly switching a new source to supply water if the determination parameter difference between the new water source and water quantity corrosivity of original water is less than or equal to 0.08; adding proportions to gradually increase for mixature if the determination parameter difference between the new water source and water quantity corrosivity of original water is greater than or equal to 0.08 for supplying water to the pipe network till all water sources are completely switched. The method for ensuring water quality stability of a water supply network during switching of water sources has following beneficial effects: on the condition that water supply sources are needed to be switched, water quality of the water supply pipe network is stable; little influence is exerted to existing physical and chemical proprieties and a microbic system so that yellow water is effectively avoided; risk prediction of yellow water is high in accuracy so that the method plays a guiding role in ensuring stability of water quality of the pipe network; and the method is convenient and feasible and is easy and quick.

The invention relates to a two-stage deep-bed upward flow composite filter material biological filter and a method for treating low-temperature high-ammonium-nitrogen polluted water by utilizing the same, and relates to a water treatment device and a water treatment method. The method can be used for solving the problems of the traditional method for treating low-temperature heavily-polluted water that the capability for degrading ammonium-nitrogen and organic matters in the water is remarkably lowered, the organic matters and ammonium-nitrogen pollutants in the water cannot be degraded, and the sudden increment of the pollutant concentration cannot be handled. An apparatus comprises a first-stage upward-flow biological filter, a second-stage upward-flow biological filter, a nitrogen charging unit, a composite filter material layer, a main body filter material layer, a first carrying layer and a second carrying layer. The method comprises the following steps: carrying out the treatment on the low-temperature high-ammonium-nitrogen polluted water passing by a water inlet end, an ozone contact oxidation unit, an ozone catalytic oxidation unit, the first-stage upward-flow biological filter, the nitrogen charging unit and the secondary upward-flow biological filter, obtaining the water with pollutants removed, and discharging the purified water by virtue of a water outlet end for external supply. The method for treating the low-temperature high-ammonium-nitrogen polluted water by utilizing the two-stage deep-bed upward flow composite filter material biological filter is applicable to treating the low-temperature high-ammonium-nitrogen polluted water.

The invention provides a method and a system for predicting the dosage of a coagulant in tap water. The method comprises the following steps: S1, establishing a coagulant dosage calculation model by using a deep learning algorithm; and S2, inputting the influence factors of the tap water coagulant dosage into the coagulant dosage calculation model, and predicting the coagulant dosage. The invention provides a method for calculating the dosage of a medicament for optimal control of a coagulant adding system in a tap water treatment process, solves the problem that the dosage of the coagulant is difficult to accurately calculate, and has important significance for optimizing the dosage of the coagulant, stabilizing the turbidity of effluent after precipitation treatment and guaranteeing the safety of the quality of supplied water.

The invention discloses a drinking water disinfection and purification system for treating resistant bacteria and resistant genes of antibiotics and a technology of the drinking water disinfection andpurification system. The drinking water disinfection and purification system comprises an ultraviolet ray disinfector, a microporous filter and an electrochemical reactor, wherein a drinking water inlet is formed in the ultraviolet ray disinfector; the ultraviolet ray disinfector is sequentially connected with the microporous filter and the electrochemical reactor through a pipeline; a drinking water outlet is formed in the electrochemical reactor; a T-shaped feeding pipe is arranged on the connecting pipeline between the microporous filter and the electrochemical reactor; and a secondary liquid inlet is formed in the T-shaped feeding pipe. According to the drinking water disinfection and purification system disclosed by the invention, most of bacteria including resistant bacteria of antibiotics are removed through ultraviolet irradiation, and intracellular resistant genes are removed to a certain degree; then dead bacterium bodies and a small quantity of living resistant bacteria areremoved through microporous filtration; and finally soluble extracellular resistant genes and a small quantity of intracellular resistant genes in the water are thoroughly removed through a low-energy-consumption electrochemical oxidation system. The resistant bacteria and the resistant genes in water sources are completely removed, so that the water supply safety is guaranteed, and the drinkingwater disinfection and purification system has a good application prospect.

The invention provides a distribution method for ensuring the water quality stability of a water supply pipe network during water source switching. The method comprises the steps of measuring a water quality difference index (WQDI) of a new water source and raw through water; if the WQDI of the new water source and the raw through water is less than or equal to 0.30, directly switching the new water source for supplying water for the pipe network; if the WQDI of the new water source and the raw through water is larger than 0.30, mixing the new water source and the raw through water; selecting a blending mixed water with the WQDI of the mixed water and the raw through water being less than or equal to 0.30, and the highest addition proportion of the new water source; gradually increasing the addition proportion of the new water source after the pipe network is adapted until only the new water source exists. According to the method provided by the invention, under the condition of switching a water supply source, the water quality stability of the water supply pipe network can be ensured, the influence on physicochemical properties and a microbic system in a pipeline is less, the prediction on a yellow water occurrence risk is accurate, the occurrence of the yellow water phenomenon can be prevented, and the method has important directive significance on ensuring the water quality stability of the water supply pipe network during water source switching, is convenient and easy to implement, and is simple and fast.

The invention discloses a method for optimizing location of water source based on environmental risk avoidance, belonging to the field of environmental science and environmental risk technology, and comprising the following three steps of step 1 calculating the size Si of each risk source around the drinking water source and the accident occurrence probability Pi to obtain the risk value Rsi of the risk source; 2 based on that risk value of the risk sources, combining with the accident harm degree, using the software ArcGIS 10.2, adopting the inverse distance weight interpolation method to construct the risk equivalent distribution map of the drinking wat source; 3 dividing that risk grade of the drinking water source area, and proposing an optimized location scheme of the water source area or an environmental risk source adjustment scheme according to the risk avoidance principle. The method for optimizing location of the water source based on environmental risk avoidance comprehensively considers the size of risk source, the accident occurrence probability and the harm degree, and constructs an environmental risk assessment and risk avoidance method of water source, is beneficialto avoiding uncertainty of subjective judgment and provides the technical support for guaranteeing water supply safety of water source.

The invention discloses an urban raw water scheduling scheme compilation method for multi-water-source multi-target comprehensive application. The method comprises the following steps: S1, generalizing an urban multi-water-source water supply system, and carrying out constraint processing on a generalized virtual water supply line to construct an urban raw water scheduling scheme compiling model considering supply and demand balance of each water plant and reasonable utilization of multiple water sources; and S2, setting target functions and constraint conditions for the urban raw water scheduling scheme compiling model constructed in the step S1, and on the basis of priority ranking of all the set target functions, carrying out step-by-step optimization on all the target functions of the urban raw water scheduling scheme compiling model by using a multi-target optimization algorithm of a step-by-step optimization algorithm under the constraint conditions, and obtaining an optimal urban raw water scheduling scheme. The method has the advantages that external water utilization is preferentially achieved, local surface water utilization is balanced, local underground water pressure mining is reduced, a multi-water-source urban water supply system is fully and reasonably utilized, the water supply guarantee rate of the urban water supply system is increased, and water supply safety is guaranteed.

The invention discloses a closed microscopic shooting system which comprises a bottom plate and a shell arranged on the bottom plate. A sliding groove is fixed to the bottom plate. A lifting part capable of moving along the sliding groove in a reciprocating mode is arranged on the sliding groove. A CCD camera is fixed to the lifting end of the lifting part. A rectangular light source frame is arranged at one end of the shell. A reaction chamber is formed in the rectangular light source frame. The problem of contradiction between magnification times and the shooting view field area is solved; visible light imaging shooting is utilized for replacing an infrared light imaging mode, shooting speed is obviously increased, shooting clarity is obviously improved, and meanwhile the manufacturing cost is reduced greatly.

The invention discloses a well water source lifting pump intelligent monitoring system. The well water source lifting pump intelligent monitoring system is characterized in that the system comprises an incoming line power switch, a current transformer, a compensation capacitor module, a control box, a fuse module, a three-phase smart meter, a collector, a remote controller, a water level sensor and a terminal; remote start and stop of a water source pump are achieved, fault alarm is achieved, the efficiency of starting and stopping the pump is ensured, the timeliness, accuracy and sufficiencyof fault finding are achieved, scientific and reasonable guarantees of water supply safety are achieved, reasonable and effective water supply control is achieved, pump starting is carried out immediately in a control center, a lot of manpower and material resources are saved, and a person does not need to rush to the scene.

The invention discloses a high-quality drinking water engineering and secondary water supply reconstruction engineering combined reconstruction method. The method comprises the following steps that pressurizing pipelines are reserved in a pump house; the middle area pressurizing pipeline is connected; the low area pressurizing pipeline is connected; and roof preservation treatment is performed. According to the method, compared with a regular three-area three vertical pipe down-feed method, the space of all middle area vertical pipes can be saved, and conditions are created for vertical pipe construction. According to the high-quality drinking water engineering and secondary water supply reconstruction engineering combined reconstruction method, a prior water supply system can be maintained before secondary water supply reconstruction by reserving valves and the pipelines, the prior water supply system can be directly switched into a separated area system after secondary water supply reconstruction is completed, through a middle-low area down-feed and high area water adding box bypass pipe up-feed water supply mode, the pipeline occupied space is saved, water supply safety can be guaranteed, the long-term abandoned amount is small, and system switching is convenient.

The invention discloses an automatic pump-locking alarm device for epidemic monitoring of water supply of a pumping station. The device is characterized in that: an infrared alarm is used for outputting to a singlechip, a program of the singlechip controls a relay to close a water pump and disconnect a water pump startup circuit, and the singlechip, a communication module and a data storage card on a mobile phone are arranged in a shell so as to form an alarm command; a sensor is used for monitoring the infrared alarm, the change of output potential of the sensor is input into the singlechip, the singlechip controls the relay (K1) which is serially connected to a circuit of a water pump startup disk of a motor, a normally closed contact (K1-1) on the relay is changed into a normally opened contact at this time, and an alternating current contactor (KO) started by the water pump is disconnected; and when the water pump is started, the alternating current contactor (KO) is connected when a power supply connection pushbutton is pushed, and the voltage continues to be imposed at two ends of the alternating current contactor (KO) through an auxiliary contact (KO-1) on a disconnection pushbutton, the alternating current contactor (KO) maintains a connection state and the water pump drains water when the power supply connection pushbutton is loosened.

The invention is to guarantee the safety of secondary water supply quality. For the first time at home and abroad, online efficient monitoring of water quality at the user end is realized. The deviceis characterized by on-line monitoring of residual chlorine and conversion by computer mathematical model to realize data collection and analysis according to different chlorine tolerances, differentchlorine consumptions, UV resistances and water supply amounts of different bacterial colonies. Comprehensive parameters are used to determine the intensity of UV bacteria inactivation. The purposes of safety, efficiency and economy are achieved.

The invention relates to a treating technology for drinking water, particularly discloses the treating technology for mineralizing drinking water in cities and towns. The treating technology comprises the steps of activating treatment of water body, removal of pollutants from the water adopting physical way and a mineralized treatment process. According to the treating technology for mineralizing the drinking water in cities and towns, functional properties of a series of natural high quality ores are optimized and combined, mineralization of effluent quality is ensured, and water quality reaches the standard of natural active mineral water, and investment is small, operating cost is low, and the effluent quality is stable.

The present invention relates to an automatic water-supplementing device for water tank, including water tower, water pump and water pump motor. The water tower automatic water-supplementing device can be used for driving water pump motor of water pump, and the circuit of water pump motor M includes working circuit and control circuit. The working circuit includes water pump motor, AC contactor and AC power supply, and the control circuit includes bridge vertoro, resistor, relay KM2 and internal contacts of water tower. Said automatic water-supplementing device can automatically control water-supplementing process.

The invention discloses a secondary water supply deep purification system with a coupled quality separation function. The secondary water supply deep purification system comprises a water tank arranged underground, the system is characterized by further comprising an emergency water quality guarantee unit, a water quality improvement unit, a user water supply pipeline, a return water pipeline anda direct drinking water pipeline, a water inlet of the emergency water quality guarantee unit is connected with a municipal water pipeline; a water outlet of the emergency water quality guarantee unitis connected with the front end of the water tank; the rear end of the water tank is connected with a user water supply pipeline; one side of the water tank is connected with a water inlet of the water quality improvement unit; a concentrated water outlet of the water quality improvement unit is connected with a water inlet end of the return water pipeline; a water outlet end of the return waterpipeline extends into the water tank; a pure water outlet of the water quality improvement unit is connected with a water inlet end of the direct drinking water pipeline; and a water outlet end of thedirect drinking water pipeline is connected with an external direct drinking nozzle. The secondary water supply deep purification system has the advantages that the secondary water supply deep purification system can be combined with a secondary water supply system of a municipal official website, secondary pollutants are removed, and at the same time, the community quality-divided water supply is realized, and the requirements of users on common water, high-quality direct drinking water and the like are met.

The invention discloses a water conservancy project intelligent regulation control system and regulation control method for guaranteeing water supply safety of a river mouth. The system comprises an environment element in-situ monitoring module, an environment element information management control module, an upstream remote regulation control module and a downstream local intelligent emergency module, wherein the environment element in-situ monitoring module is used for monitoring hydrology, water power and water environment elements of key positions of an upstream reservoir and a downstream river mouth in real time; the environment element information management control module is used for managing and controlling hydrology, water power and water quality element information of different sources and different types; the upstream remote regulation control module is used for implementing long-distance accurate optimization scheduling on the upstream reservoir in a water supply safety sensitive period of the river mouth to improve overall water supply safety of the downstream river mouth; and the downstream local intelligent emergency module can implement targeted emergency measures in the downstream local position through intelligent response for the implementation effect of the upstream remote regulation control module to ensure water supply safety of emphatically protected water areas of the river mouth.

The invention discloses a pressure-superposed variable frequency pressurization water supply tank and a pipe network flow proportioning flexible intelligent control device, comprising a drive motor, a transmission mechanism, a valve core, two flow meters, a Venturi structure pipe fitting and an intelligent controller, wherein the drive motor is mounted on the outer wall of the pipe fitting and drives the valve core to move back and forth through the transmission mechanism, thus realizing the flexible adjustment of the water supply flow of an urban tap water pipe network; the water flow of thewater tank changes along with the change of suctioning negative pressure caused by the change of the flow of a nozzle; the two flow meters are mounted at the inlet of the tap water pipe network and the water inlet of the water tank, respectively, thereby monitoring the flow conditions of the two water inlets; and when the flows of the two inlets meet the proportioning requirements, the adjustmentis completed so as to satisfy timely circulation of the water of the water tank and meet the water supply requirements in different cases at any time. The pressure-superposed variable frequency pressurization water supply tank and the pipe network flow proportioning flexible intelligent control device are simple in structure, simple and convenient to adjust, high in automation degree, and suitable for large-area popularization and application in urban water supply systems.