3409 results about "Water production" patented technology

The invention provides an air water production intelligent prediction and adjustment method and system based on meteorological big data, and relates to the technical field of air water production, and the method comprises the steps: collecting data through a meteorological sensor, constructing an enhanced feature space, fusing multi-domain knowledge through a migration cross-domain learning network, and predicting the water production through combining with a deep neural network. A control strategy is generated based on a deep reinforcement learning model, optimal control parameters are selected through multi-target Bayesian optimization and a dynamic decision algorithm, the air water production amount can be accurately predicted, intelligent adjustment is achieved, the water production efficiency is improved, energy consumption is reduced, and high environmental adaptability and robustness are achieved.

The invention discloses an urban ecological unit scale water conservation function evolution simulation system, relates to the technical field of ecological hydrological simulation, and is technically characterized in that the system combines an InVEST model, a water balance method, a geographic detector and a Moran index to construct a multi-source data fused water conservation evaluation method. According to the system, key factors are obtained through remote sensing data and geostatistical data, a mapping model between water yield and actually measured runoff depth is established based on a regression fitting relation, and a spatial heterogeneity analysis and factor interaction detection mechanism is introduced, so that time sequence dynamic simulation and spatial pattern recognition of a water conservation function are realized. The system can be widely applied to the fields of urban water resource regulation and control, ecological space planning, hydrological safety evaluation and the like.

The invention discloses an automatic measuring and adjusting method and system for flow of an intelligent separate injection well, and relates to the technical field of layered flow allocation. The method comprises the steps that the residual oil saturation of each layer in an oil reservoir is calculated based on historical and real-time data of the oil reservoir, and the initial water injection rate is distributed according to the residual oil saturation of different layers; and predicting an oil-water output ratio by using a water drive curve model according to the distributed initial water injection rate, and dynamically adjusting a water injection strategy in combination with actual production data for implementation. According to the method, the seepage rate and the pressure distribution are calculated by combining the physical constraint model and the Darcy law, so that the scientificity of regulation and control of the water injection rate of each layer is improved, and pressure balance and seepage path optimization of each layer in the oil reservoir development process are ensured; the real-time water injection strategy is optimized by dynamically predicting and adjusting the oil-water output ratio through the water drive curve model, the water injection rate is dynamically adjusted through the nonlinear prediction control model, it is ensured that the system can still operate stably in the complex dynamic environment, and the water injection efficiency and the recovery efficiency are remarkably improved.

The invention relates to a control method and a control system for a multi-agent water plant process system. The method comprises the following steps: constructing a control objective function for maximizing the global revenue of the water plant process system; performing process simulation on the single agent of the water plant process system according to the constraint condition to obtain an optimal control scheme of the single agent; grouping and integrating the optimal control schemes, and performing multi-target iterative optimization on at least one formed multi-agent cooperative control scheme set according to a control target function to obtain a multi-agent cooperative control strategy meeting the control target function; and dynamically adjusting the multi-agent cooperative control strategy according to the real-time change information of the water plant process system, and deploying the adjusted optimal multi-agent cooperative control strategy to the water plant process system. According to the method, the competition and cooperation relationship between the single agents is managed through an innovative coordination mechanism, and it is ensured that the overall harmony and the water production efficiency of the water plant are not damaged while all the single agents pursue the optimization target of the single agents.

The invention provides a method and a system for intelligently interactively controlling water production equipment. Wherein heavy metal ion concentration data is collected in real time through a multi-node sensing array, concentration difference fluctuation of adjacent monitoring points is analyzed, and a pollutant diffusion track is deduced; when the monitoring data exceeds the standard, switching of a standby water source is triggered based on a diffusion trajectory analysis result, and a reverse cleaning instruction is generated in combination with the dynamic ratio of the concentration gradient change rate to the diffusion speed; dynamically correcting the concentration deviation by utilizing fluid mechanics parameters in a high-pressure impact process in cooperation with multi-dimensional sensor data, and generating environmental response type pollution grade parameters; finally, a pollutant migration path in the three-dimensional diffusion model is matched according to the pollution level, a decision signal containing emergency water source coordinates and the cleaning priority is output, and full-process closed-loop intelligent control from pollution monitoring to emergency decision is achieved. According to the technical scheme provided by the invention, the response speed and the disposal accuracy of the water quality sudden pollution event are improved.

The invention belongs to a monitoring method, and provides a real-time monitoring method for the amount of liquid accumulated in an oil pipe of a natural gas well and a related device aiming at the technical problems that whether accurate prediction is carried out or not cannot be judged and dynamic changes cannot be monitored in real time in two methods for judging the state of the liquid accumulated in the gas well at present. The method comprises the following steps: acquiring instantaneous wellhead oil pressure, instantaneous wellhead temperature, instantaneous gas production rate and instantaneous water production rate of a natural gas wellhead in real time, and then respectively determining a gas well water-gas ratio, natural gas phase real density, natural gas real kinematic viscosity, natural gas phase real flow rate, natural gas phase Reynolds number and non-dimensional liquid accumulation amount in an oil pipe; and obtaining the actual liquid phase content according to the non-dimensional liquid accumulation amount in the oil pipe, the diameter of the oil pipe and the depth of the oil pipe. Production structure parameters such as instantaneous gas production, instantaneous water production, instantaneous wellhead oil pressure, instantaneous wellhead temperature and the like which are easy to obtain on site can be directly utilized to obtain a liquid accumulation amount evolution dynamic curve of the gas well in the continuous production process.

The invention relates to the technical field of water drinking equipment, and provides an ice-making purifying water dispenser and a control method, device and equipment thereof, a storage medium and a product. In the ice-making water purifying and drinking machine, a heating module is used for heating water in a water purifying tank; the ice making module is used for making ice by using water in the cold water tank; the filtering module is used for purifying a water source entering from the water inlet and storing the purified water source into the water purifying tank. The method comprises the following steps: acquiring a first water level state indicating whether the water purification tank is full of water in the water purification tank and a second water level state indicating whether the cold water tank is full of water in the cold water tank; when the clean water tank and the cold water tank are full of water, a standby state is entered; and when at least one of the clean water tank and the cold water tank is not full of water, a water production state is entered. The two water tanks of the ice-making purifying and drinking machine share one set of filtering system, so that a user can obtain clean ice blocks while purifying and drinking are realized; through real-time detection of the water level states in the two water tanks, water can be supplemented in time, and the convenience and satisfaction degree when a user uses the water purifying and drinking machine are improved.

The invention discloses a method and device for recognizing the water outlet position and the water outlet mode of a horizontal well based on DTS temperature profile features. Comprising the following steps: acquiring distributed optical fiber temperature sensing (DTS) temperature profile data along a horizontal shaft; establishing a multiphase flow horizontal well temperature prediction composite model as a forward model; an inversion model is established, and stratum permeability distribution and an oil-water output profile are obtained; according to the well section with the water phase liquid production capacity exceeding a preset threshold value in the production profile, the water outlet position of the horizontal well is recognized; and determining the water outlet mode of the horizontal well by combining the analysis result of the multiphase flow horizontal well temperature prediction composite model on the temperature response in different water outlet modes according to the temperature change characteristics presented at the identified water outlet position by the DTS temperature profile. Compared with the prior art, the water outlet position can be more accurately recognized, the water outlet mode can be effectively distinguished, the monitoring cost is reduced, and powerful technical support is provided for water control and oil stabilization of the horizontal well.

The utility model provides hydrogen-rich water production equipment which comprises a purification module, a water storage module, a water supply module and a water supply module, wherein a water inlet of the purification module is used for communicating with a water supply device; a water inlet of the hydrogen-rich module is communicated with a water outlet of the purification module; a water inlet of the hydrogen mixing module is communicated with a water outlet of the purification module, and a gas inlet of the hydrogen mixing module is communicated with a hydrogen outlet of the hydrogen-rich module; the control device is communicated with the purification module, the hydrogen enrichment module and the hydrogen mixing module; the water boiling device is used for being communicated with the water outlet of the hydrogen mixing module under the control of the control device, and the water boiling device is used for heating the hydrogen-rich water output by the hydrogen mixing module; the hydrogen and oxygen absorption device is provided with a hydrogen absorption port and an oxygen absorption port, the hydrogen absorption port is used for being communicated with the hydrogen outlet of the hydrogen enrichment module under the control of the control device, and the oxygen absorption port is used for being communicated with the oxygen outlet of the hydrogen enrichment module under the control of the control device. The hydrogen-rich water supply function, the hot water supply function, the hydrogen absorption function and the oxygen absorption function are integrated.

The invention discloses a water supply system scheduling optimization method and device, electronic equipment and a storage medium, and relates to the field of intelligent scheduling of water supply systems. The method comprises the steps of collecting and preprocessing multi-dimensional data to obtain a data set; the pressure data is analyzed from the space-time dimension, and the unfavorable points and the pressure requirements thereof are accurately identified; the method comprises the following steps: constructing a water volume prediction model by adopting a time sequence model, and constructing a total water head difference prediction model by adopting a Light GBM gradient boosting tree in combination with a MultiOutputRegressor multi-output regression framework; constructing a minimum total water production cost objective function based on a prediction result, and outputting an optimal scheduling scheme by combining water volume and pressure constraint iterative optimization; and establishing a model updating mechanism to ensure dynamic adaptation of the strategy. According to the method, the problems of insufficient pressure guarantee, extensive cost control and weak model practicability and generalization ability are solved, the inherent contradiction that a traditional mechanism model is high in complexity and a pure data driving pressure prediction model is poor in generalization and lacks physical significance is overcome, and safe, stable and efficient intelligent technical support is provided for a water supply system.

The present invention relates to a system and a treatment method for treating high-phosphorus wastewater and resourcefully utilizing phosphorus elements. The system includes a bipolar membrane electrodialysis device, a phosphorus precipitator, and a membrane treatment device. Inside the bipolar membrane electrodialysis device, there are successively arranged a cathode, a first bipolar membrane, a main cation exchange membrane, a main anion exchange membrane, a second bipolar membrane, and an anode. Between the first bipolar membrane and the main cation exchange membrane is an alkali chamber, between the main cation exchange membrane and the main anion exchange membrane is a wastewater chamber, between the main anion exchange membrane and the second bipolar membrane is an acid chamber, the outside of the first bipolar membrane is a cathode chamber, and the outside of the second bipolar membrane is an anode chamber; the high-phosphorus wastewater is input into the wastewater chamber, the acid chamber is provided with a phosphoric acid recovery pipe, and the alkali chamber and the wastewater chamber are respectively connected to the phosphorus precipitator through an alkali liquid pipe and a first water production pipe; the phosphorus precipitator is provided with a precipitant inlet for inputting a calcium precipitant or a magnesium precipitant, the concentrated water outlet of the membrane treatment device is connected to the wastewater chamber, and the produced water of the membrane treatment device is reused as reclaimed water.

The invention discloses a deep coal and rock gas horizontal well pressure drainage working system optimization method and system, and the method comprises the steps: building a dynamic relation between the pressure drop and the flow of an oil nozzle based on a Gilbert model, and predicting the change of the gas-water ratio at different stages in combination with a double logarithmic segmentation fitting formula of the flow-back rate and the gas-water ratio; constructing a fracture quasi-steady-state flowing substance balance equation, and deducing an inflow dynamic curve of the flowing bottomhole pressure and the water yield; a Gray multiphase flow model is adopted to calculate the wellbore pressure gradient, and an outflow dynamic curve of the flowing bottomhole pressure and the liquid production capacity is generated; a reservoir, a shaft and an oil nozzle pressure system are coupled through a node system analysis method, an inflow-outflow coordination point is matched, and the size range of the oil nozzle is dynamically optimized. The method realizes accurate prediction and real-time regulation and control of drainage and mining parameters, solves the problem of rapid attenuation of fracture conductivity caused by high stress sensitivity of coal rocks, reduces the risk of pulverized coal blockage, improves the gas recovery efficiency, and is suitable for efficient development of deep coal rock gas wells.

The invention relates to the technical field of oil and gas exploitation, and discloses an oil and gas well water production position positioning method, device and equipment based on distributed optical fiber sound waves and a medium, and acoustic signals corresponding to a plurality of production profiles can be collected through a distributed acoustic sensor arranged in an oil and gas shaft. And performing preprocessing, time-frequency conversion and normalization on the acoustic signal corresponding to each production profile to obtain a normalized acoustic spectrum corresponding to each production profile. And extracting a characteristic wave crest section from the normalized acoustic spectrum corresponding to each production profile. And carrying out reverse normalization on the characteristic wave crest segment corresponding to each production profile to obtain a reverse normalization wave crest segment. And based on the water phase response frequency band, determining a matched first wave crest section in the anti-normalized wave crest section corresponding to each production profile, and determining the production profile corresponding to each first wave crest section as a water production position. According to the invention, intelligent detection of the water production position of the oil and gas well can be realized, and the detection precision of the water production position is effectively improved.

The invention discloses a low-permeability gas reservoir productivity prediction method, a storage medium and a low-permeability gas reservoir productivity prediction device, and belongs to the technical field of low-permeability gas reservoir development. Based on the gas-water two-phase motion equation, establishing a gas phase productivity equation considering the high-speed non-darcy effect, the starting pressure gradient and the stress sensitive effect; establishing a water yield calculation formula considering the starting pressure gradient and the stress sensitive effect; the water-phase relative permeability is expressed on the basis of the relation between the gas-water relative permeability ratio and the water saturation; using a gas-water relative permeability model to express the gas-phase relative permeability considering the active degree of the water body; and substituting the gas phase relative permeability into the gas phase productivity equation. According to the method, the influence of the water body active degree, the starting pressure gradient and the stress sensitive effect on the productivity of the gas reservoir is considered, the multi-factor coupled productivity prediction model including formation water invasion is established, the technical problem that the productivity of the low-permeability gas reservoir is difficult to accurately predict through a traditional method is solved, and the development efficiency and economic benefits of the low-permeability gas reservoir are effectively improved.

The utility model discloses a purifying and heating all-in-one machine which is provided with a raw water inlet and comprises a filtering unit with a filter element; the heating device comprises a heating cavity and a heating body, a water inlet of the heating cavity is communicated with the pure water outlet of the filtering unit, and the heating cavity is provided with a reflux inlet for discharging hot water to the filtering unit; the cooling device comprises a water storage cavity, and the raw water inlet is communicated with the filtering unit through the water storage cavity; one end of the backflow pipeline is communicated with the backflow opening, the other end of the backflow pipeline is communicated with a fluid path between the water storage cavity and the filtering unit, and at least partial area of the backflow pipeline is arranged in the water storage cavity in a penetrating mode. According to the heat purifying and purifying all-in-one machine, hot water which is not taken for a long time and needs to be emptied can flow back to the filtering unit to be filtered and reused, water resources can be saved, water flow waste is reduced, the emptied hot water participates in heat exchange, heat damage to the filtering unit due to the fact that the water temperature is too high is avoided, and the service life of the filtering unit is prolonged. And the water production capacity and the anti-freezing performance of the filtering unit can be improved.

Disclosed in the present invention are a water purifier and a control method therefor. The water purifier comprises: a filter member, wherein the filter member comprises a membrane element and the filter member is provided with a water inlet (11), a pure water outlet (12), and a wastewater outlet (13); a water pump (2), wherein the water pump (2) is arranged upstream of the water inlet (11) and used for pressurizing a fluid fed into the water inlet (11); a wastewater valve (3), wherein the wastewater valve (3) is arranged downstream of the wastewater outlet (13) and the wastewater valve (3) has an open state in which wastewater is allowed to flow out and a closed state in which the wastewater is prevented from flowing out; and a controller, wherein the controller is at least electrically connected to the water pump (2) and the wastewater valve (3). The water purifier has a water production mode used for outputting pure water; and in the water production mode, the wastewater valve (3) is in the closed state within a preset period of time. In the present application, the water production rate can be adaptively adjusted according to different scenarios, such that the water-saving performance can be improved while the water purifier meets corresponding water production rate requirements in different scenarios, thereby improving the user experience; in addition, the reliability and the service life of the water purifier can also be ensured.

The invention relates to the field of water production systems, and discloses floor type air water production equipment which comprises a multi-stage energy sensing module, an energy budget core module, a dynamic energy distribution module, a water production switching module and an energy optimization closed-loop module. The multi-stage energy sensing module is used for collecting data information of solar input power, battery charge state, environment temperature and environment humidity in real time; the energy budgeting core module calculates current available energy and predicts available energy in a future short period in real time, and deduces an energy trend based on a calculation result; a hierarchical energy management module used for executing a hierarchical energy management strategy according to the budgeting result of the energy budgeting core module; the water production switching module comprises a plurality of water production working modes, and each water production working mode corresponds to different energy consumption and water production efficiency; the energy optimization closed-loop module adjusts the dynamic energy distribution module and the energy budgeting core module; the device can continuously and efficiently work even in a low-light or extreme environment.

The invention discloses a fuel cell rapid cold start method considering initial water content optimization, and belongs to the technical field of fuel cell automobile optimization control. According to the fuel cell rapid cold start method considering initial water content optimization, a closed-loop model prediction controller is firstly designed to accurately control the current of a galvanic pile, and then the initial film water content is optimized by using a particle swarm optimization algorithm, so that the rapidity of a cold start system is improved. The method can be structurally divided into the following parts: establishment of a cold start model, design of a parameter self-tuning model prediction controller and optimization of the optimal initial membrane water content. In the cold start process, the current output of the electric pile is adjusted in real time according to different environment temperatures and membrane water contents, controller parameters are adjusted in a self-adaptive mode, the freezing rate and the heating rate of water produced by the electric pile can be effectively balanced, and the performance of a cold start system is improved.

The invention discloses a range hood. The range hood comprises a water production module, the water production module comprises a refrigeration part and a condensation fin, the refrigeration part is connected with the condensation fin, and the refrigeration part is used for cooling the condensation fin so that condensed water can be formed on the condensation fin; the water box is used for collecting condensate water; and the steam washing device is communicated with the water box. According to the range hood, the temperature of the condensation fin can be reduced through the refrigeration part, so that condensed water can be formed on the condensation fin, water can be supplied to the water box by collecting the condensed water, manual water adding by a user is avoided or the frequency of manual water adding is reduced to a certain extent, the user operation is simplified, and the use convenience of the user is improved.

The invention relates to the technical field of water purification equipment control, and discloses a filter element service life identification method, device and equipment, a storage medium and a program product, and the method comprises the following steps: in the working process of a filter element, obtaining the water flow, the water production time and the whole machine power-on time of the filter element; detecting whether the flow meter is abnormal or not; if the flow meter is not abnormal, whether the service life of the filter element expires or not is judged according to the water flow and the whole machine power-on time; if the flow meter is abnormal, whether the service life of the filter element expires or not is judged according to the water production time and the whole machine power-on time. The service life of the filter element can be accurately recognized by integrating the water flow, the water production time, the whole machine power-on time and the flow meter state, the situation that the service life is not due, so that the filter element is wasted, or the water quality is affected due to too long use time is avoided, and the user experience and satisfaction degree are improved.

The invention provides a hollow fiber membrane cleaning pressure self-adaptive adjustment control method and system, and relates to the technical field of control, and the method comprises the following steps: in a set temperature range, washing a water inlet side and a water production side through a constant flow, and determining a target transmembrane pressure difference interval; according to the transmembrane pressure difference deviation and the change rate, the rotating speed of a water inlet pump and the opening degree of a concentrated water discharge valve are cooperatively regulated and controlled according to a valve-first and pump-second sequence; when the transmembrane pressure difference reaches the upper limit and pollution is reversible, an impact cleaning sequence is generated, the opening of a concentrated water valve is increased, and the rotating speed of a water inlet pump is increased to form shear scouring. According to the invention, the self-adaptive adjustment of the cleaning pressure in the membrane pollution process is realized, and the membrane cleaning efficiency is improved.

The utility model provides a circulating type wastewater treatment device and a household water purifier, the circulating type wastewater treatment device comprises a wastewater pipeline, one end of the wastewater pipeline is suitable for being connected with a wastewater port of the water purifier, and a one-way valve is arranged on the wastewater pipeline; the water mixing tank comprises a tank body, and the tank body is provided with a first water inlet connected with the other end of the wastewater pipeline and used for receiving wastewater flowing out of the wastewater pipeline; the second water inlet is communicated with a tap water pipeline and is used for introducing tap water so as to primarily dilute the wastewater in the box body and form mixed water; the first water outlet is communicated with a water inlet of the water purifier; and a second water outlet; the faucet is communicated with the second water outlet, and the faucet is configured to reduce the TDS value of the mixed water by discharging at least part of the mixed water; wherein the mixed water is continuously diluted by tap water in the tap water pipeline within the interval time of water production.

The invention aims to provide a thermal power plant water production workshop production scheduling optimization method and device, and the device comprises a rolling time domain prediction module, a multi-source data fusion module, a multi-target optimization decision module, and a closed-loop feedback control module. The problems that in existing production scheduling, multiple factors are not fully and comprehensively considered, so that the water production cost is high, production arrangement is unreasonable, night shift production scheduling cannot be effectively reduced and the like are solved, maximization of water production economic benefits is achieved, and safe production is guaranteed. The invention provides an intelligent water production and production scheduling system and method for demineralized water of a thermal power plant. Water production cost minimization and production safety collaborative optimization are achieved through data fusion, prediction optimization and dynamic closed-loop control.

The invention discloses a water supply digital scheduling method and system based on water volume prediction and water storage regulation, and relates to the technical field of water plant water supply scheduling, and the method comprises the steps: creating a scheduling scene model, and obtaining the historical data of a target water plant; determining the water demand in a period of time in the future through a water consumption prediction model; determining each pipe network end unfavorable point and a pressure control range thereof; constructing a training sample set, and establishing and training a voltage drop fitting model; on the basis of the water consumption prediction model and the pressure drop fitting model, according to historical data, peak and valley electricity prices are matched to the maximum degree, and a water plant delivery pressure scheduling scheme, a water production scheme and a water pump scheduling scheme in a period of time in the future are formulated; and real-time factory instant flow data of the target water plant is obtained, dynamic self-correction is carried out in combination with the scheme and historical data, and real-time water plant water supply scheduling schemes including a real-time factory pressure scheduling scheme and a real-time water pump scheduling scheme are formulated. The accuracy and efficiency of water supply digital scheduling of the water plant can be improved.

The embodiment of the invention provides a water electrolysis hydrogen production catalytic electrode and a preparation method thereof, an electrolytic bath and a water electrolysis hydrogen production system.The provided water electrolysis hydrogen production catalytic electrode comprises a conductive substrate and a catalytic material layer deposited on the conductive substrate, the catalytic material layer comprises a nickel-based material, the surface of the catalytic material layer is provided with mountain-chain-shaped protrusions, and the mountain-chain-shaped protrusions are arranged on the surface of the catalytic material layer. The nickel-based material is used as the catalytic material layer, and mountain chain-shaped bulges are formed on the surface of the nickel-based material, so that not only can better binding force between the catalytic material layer and the conductive substrate be ensured, but also more active sites can be obtained on the surface of the catalyst, and the catalyst material shows better catalytic activity; therefore, the technical problem that an existing water electrolysis hydrogen production catalytic electrode cannot effectively give consideration to catalytic activity and stability can be effectively solved. In addition, the catalytic electrode for hydrogen production by electrolysis of water provided by the embodiment of the invention does not need to use noble metal, so that the production cost is relatively low.

The invention discloses an integrated autotrophic nitrogen removal treatment system with multiple operation modes, comprising: an A / O reactor, the A / O reactor comprising an anoxic zone and an aerobic zone; the ANAMMOX reactor is connected with the A / O reactor, and the ANAMMOX reactor comprises a first ANAMMOX reaction zone and a second ANAMMOX reaction zone; the MBR membrane separation device is connected with the ANAMMOX reactor, an MBR membrane assembly is arranged in the MBR membrane separation device, and the MBR membrane separation device is further connected with a water production unit and a sludge treatment unit; and the autotrophic nitrogen removal control unit is used for controlling the A / O reactor, the ANAMMOX reactor and the MBR membrane separation device. According to the invention, the water inlet proportion and the system operation parameters can be autonomously controlled and adjusted according to the change of the sewage quality, the whole / short-cut nitrification and denitrification coupled anaerobic ammonia oxidation reaction in different operation modes is realized, the removal of ammonia nitrogen and nitrate nitrogen is realized to the greatest extent, and the treatment targets of optimal treatment effect and lowest operation consumption are achieved.

The invention relates to a marine reverse osmosis seawater desalination equipment system which comprises a raw water pretreatment module, a primary reverse osmosis module, a secondary reverse osmosis module and an energy recovery module, raw water is preliminarily filtered by the raw water pretreatment module, then pressurized by the first-stage high-pressure pump and injected into the first-stage reverse osmosis module to generate first-stage high-pressure concentrated water, and the first-stage high-pressure concentrated water pressurizes low-pressure raw water treated by the raw water pretreatment module through the energy recovery module, then pressurized by the pressure lifting pump and injected into the first-stage reverse osmosis module; the first-stage high-pressure concentrated water is pressurized by a second-stage high-pressure pump and injected into a second-stage reverse osmosis module to generate second-stage high-pressure concentrated water, and the second-stage high-pressure concentrated water is recycled; according to the equipment system, the TDS of produced water is detected, and the pressure of the primary reverse osmosis module and the pressure of the secondary reverse osmosis module are controlled, so that the equipment system realizes maximization of produced water, efficient integration of the system, complete functions, high water production efficiency, full-automatic control and wide application scene under the condition that the equipment system meets the quality requirement of the produced water.

The invention discloses a flexible composite phase change material, a preparation method and a solar thermoelectric power generation system using the flexible composite phase change material. The flexible composite phase-change material is prepared by taking a hydrogenated styrene-butadiene block copolymer SEBS as a temperature-resistant and aging-resistant flexible matrix, an olefin block copolymer OBC as a flexible elastomer, paraffin PW as a phase-change material and expanded graphite EG as a porous heat-conducting reinforcing material through a melt blending method and through hot compression molding. The material has self-packaging performance, so that the paraffin can be prevented from leaking in a molten state; and the paraffin has good flexibility and bending performance in a molten state. According to the flexible composite phase change material, the phase change temperature ranges from 62.06 DEG C to 63.54 DEG C, the phase change latent heat ranges from 124.84 J / g to 136.14 J / g, and the heat conductivity coefficient ranges from 3.07 W / (m.K) to 4.54 W / (m.K). The solar thermoelectric power generation system is composed of a flexible composite phase change material, a thermoelectric power generation device, a radiator, a waterproof coating and a solar water heater, solar thermoelectric power generation and hot water production can be carried out through solar energy at the same time, and efficient light-heat-electricity conversion is achieved.

The invention belongs to the technical field of new energy development and utilization, and particularly relates to a rural residence geothermal gradient utilization heating system which comprises a water collecting pump arranged in a water collecting well and used for collecting geothermal water in the water collecting well; the settling tower is communicated with the water outlet end of the water collecting pump and is used for filtering and settling the geothermal water collected by the water collecting pump; the inlet end of the flash evaporation heat exchange system is communicated with the settling tower, and the flash evaporation heat exchange system is used for circulating geothermal water and enabling the geothermal water to exchange heat with the cascade heat supply system; the cascade heat supply system is used for supplying heat to the indoor system by utilizing heat obtained by heat exchange with geothermal water; a water heater; the stepped heat supply system conducts heat preservation on the outdoor water pipe through heat obtained through heat exchange with geothermal water. The problems that the heat exchanger is seriously scaled, the heat exchange effect is invalid, even the heat exchanger is corroded and the temperature of recharged geothermal tail water is high due to the fact that existing geothermal heating is directly conducted through a plate heat exchanger can be solved.

The invention discloses filtering equipment for barreled water production treatment, and relates to the technical field of barreled water production treatment, the filtering equipment comprises a mounting rack and a purified water collecting mechanism, the purified water collecting mechanism comprises a water collecting cylinder, and the water collecting cylinder is fixedly mounted in the mounting rack through bolts; the centrifugal mechanism comprises a centrifugal barrel and a rotating shaft, the centrifugal barrel is movably arranged in the middle of the interior of the water collecting barrel, and the rotating shaft is movably arranged in the middle of the interior of the centrifugal barrel; and the dirt scraping mechanism comprises a plurality of limiting strips and a lower dirt scraping plate, and the limiting strips are uniformly and fixedly mounted at the top end of the rotating shaft through welding. By driving the centrifugal cylinder to rotate at a high speed, solid waste such as silt in raw water is isolated in the centrifugal cylinder, purified water is sucked through the filter rod, then the filter rod is extruded through the water scraping plate when the centrifugal cylinder rotates, the purified water sucked in the filter rod is rapidly discharged, and the filtering efficiency of barreled water in the production process is improved.