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50 results about "Water withdrawal" patented technology
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Venturi-driven flotation separator for chili peppers
ActiveUS6988622B1Low costLess-expensive labor costGas current separationFruit stoningWater withdrawalLoment
Mechanically harvested chili-pepper plants are sized into chunks and introduced into a water flotation system. Water is added at the top of a flotation vat and, for the most part, is withdrawn at the bottom using a venturi unit. The balance of the water is recovered as spillover from the top of the vat carrying the floating material. If the rate of water withdrawal at the bottom of the vessel is controlled such that it is as high as possible but less than what produces turbulence in the vat, the pulp material will drop with heavy seeds to the bottom with the extracted water while all other materials are skimmed away at the top. The very small differential in density between the pepper pulp and the rest of the plant and debris is sufficient to separate them under these specific conditions.
Owner:CURRY SEED & CHILI
Method and facility for killing oncomelania
The invention relates to a method and a device for killing snails. By applying a. a snail killing pad for restraining plant growing and preventing snails from getting in and out of earth, b. a snail breeding ground with large water change, and a separation device, the snails are prevented from moving with water level so as to obtain a suitable breeding environment and further kill the snails; By covering the snail killing pad, the snails can not obtain necessary wet earth for living and vegetation for hiding and eating. During flood season, the separation device can prevent the snails on water side from moving with the water level and cause the snails to be drowned; during water withdrawal, the snails can not move with water level to a suitable breeding ground due to the existing of the separation device and then die. The separation device can be a separating channel, floating separating matters, as well as separating nets, separating boards or separating cloth with fixed support structures. According to different environments and snail breeding grounds, the snail killing pad and the separation device, or the snail killing pad and the separation device can be adopted for killing the snails. The snail killing pad, the floating separation device, etc. can contain drugs for killing and expulsing snail and other drugs.
Owner:康强胜
Method for warning of urban flooded area
ActiveCN109186706AThe measured data are convincing and validAccurate predictionFluid pressure measurementMachines/enginesWater withdrawalWater level
A method for warning of an urban flooded area comprises four functional modules: (M1) a real-time water level observation module in the urban flooded area; (M2) a sensor layout module for municipal pipelines in the urban flooded area; (M3) an early warning indicator calculation module; and (M4) a live and early warning plane output module. The method provided by the invention has the beneficial effects that: 1, during the flood, the city manager can verify the water level data of the flooded area and the water surface image, so that the measured data is more convincing and effective; 2, new water level measuring device and method in the urban flooded area are provided; and 3, a water withdrawal process line of the flooded area can be accurately predicted.
Owner:NANJING HAWKSOFT TECH +1
Moving plunger for gas well production with water withdrawal
InactiveCN104500020AAvoid effusionImprove production conditionsPositive displacement pump componentsFlexible member pumpsProduction rateWater withdrawal
The present invention provides a moving plunger for gas well production with water withdrawal which is simple in structure and good in accumulated fluid withdrawal effect. The moving plunger comprises a fish head, a sealing rod in the fish head, a retaining sleeve which is arranged between the fish head and the sealing rod and used for limiting the movement range of the sealing rod, wherein the lower part of the fish head is screwedly connected with an outer sleeve, a drop bar is movably arranged in the outer sleeve; and the outer part of the outer sleeve is sleeved with an elastic sealing claw. The tool vertically floats due to the pressure in well, so that the shaft accumulated fluid is lifted and discharged through a well opening, and finally natural gas is developed or water flooding of other gas wells in the same air reservoir is delayed and avoided, so as to improve the production state of the whole air reservoir and increase the final production rate of the air reservoir. The moving plunger has features of simple structure, good accumulated fluid withdrawal effect, long service life, and achieves the purpose of gas production and yield increase.
Owner:BEIJING JINKELONG PETROLEUM TECH DEV
Operation mode of water delivery open channel system using coupling water level difference as controlled volume
ActiveCN108385599AAvoid overflowAvoid exposureData processing applicationsArtificial water canalsWater withdrawalWater volume
The invention discloses an operation mode of a water delivery open channel system using a coupling water level difference as controlled volume. When the water delivery open channel system is operated,the condition that the water inflow is unequal to the water withdrawal frequently occurs, the water volume in channels can change due to unequal water inflow and water withdrawal in the channels, andthe water levels can rise or lower. According to the operation mode, the water level errors to upstream and downstream control points of a check gate are measured at the movement moment of each gate,and the target opening degree of the check gate at the next moment is calculated according to the difference between the upstream and downstream water level errors, so that the water levels in the adjacent channels rise or lower at the same time. According to the operation mode, the relatively stable water level of of the multiple channels is kept within a period of water withdrawal schedule time, so that overtopping or appearance of grounding of one channel due to large change of the water level in the channel is effectively avoided.
Owner:WUHAN UNIV
Low-efficiency artificial-forest density control method
InactiveCN108605787AEasy to reinforceImprove efficiencyData processing applicationsForestryProtection forestWater withdrawal
The invention relates to the technical field of forest management, in particular to a low-efficiency artificial-forest density control method. The method includes: performing initial investigation onselected target forest stand, determining area, average rainfall and average runoff depth of the target forest stand, selecting single standard wood and measuring leaf area index; calculating maximumallowed water withdrawal of the target forest stand; calculating transpiration water consumption of the single standard wood; according to the maximum allowed water withdrawal of the target forest wood and the transpiration water consumption of the single standard wood, calculation the maximum forest stand density of the target forest stand; according to the maximum forest stand density, performing intermediate cutting of thick forest or reinforcement planting of thin forest. Therefore, fitting density of the target forest stand with different dimensions can be acquired by only measuring the leaf area index, the forest stand density is controlled by assistance of intermediate cutting or reinforcement planting, an ecology protection forest system with uniform forest structure and function target is easy to form, the leaf area index is easy to acquire, and easiness in operation is achieved.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Hot water generator
ActiveCN101603731AReduce the temperatureIncrease temperatureHeat recovery systemsSpace heating and ventilation detailsWater withdrawalEngineering
A hot water generator which has a high ability to prevent the hot water temperature from rising above a preset temperature when withdrawal of hot water is stopped. A hot water withdrawal pipe (5) of a heat exchanger (1) and a cold water intake pipe (4) thereof are connected through a circulating pipe (40) having a circulating pump (39). A cold water reservoir (42) is provided in the heat exchanger (1) on its cold water intake pipe (4) side. When withdrawal of hot water is stopped, the circulating pump (39) forces hot water in the heat exchanger (1) to circulate through the cold water reservoir (42), cold water intake pipe (4), circulating pipe (40) and hot water withdrawal pipe (5) back to the heat exchanger (1) or the circulating pump (39) forces hot water in the heat exchanger (1) to circulate through the hot water withdrawal pipe (5), circulating pipe (40), cold water intake pipe (4) and cold water reservoir (42) back to the heat exchanger (1). The temperature of circulating hot water is lowered by the cold water reservoir (42) so that the ability to prevent the hot water temperature from rising above a preset temperature is enhanced.
Owner:TLV CO LTD
Hot water generator
ActiveUS8393383B2Improve abilitiesTemperature of circulating hot water is loweredEnergy efficient heating/coolingSpace heating and ventilation detailsWater withdrawalEngineering
A hot water generator which has a high ability to prevent the hot water temperature from rising above a preset temperature when withdrawal of hot water is stopped. A hot water withdrawal pipe 5 of a heat exchanger 1 and a cold water intake pipe 4 thereof are connected through a circulating pipe 40 having a circulating pump 39. A cold water reservoir 42 is provided in the heat exchanger 1 on its cold water intake pipe 4 side. When withdrawal of hot water is stopped, the circulating pump 39 forces hot water in the heat exchanger 1 to circulate through the cold water reservoir 42, cold water intake pipe 4, circulating pipe 40 and hot water withdrawal pipe 5 back to the heat exchanger 1 or the circulating pump 39 forces hot water in the heat exchanger 1 to circulate through the hot water withdrawal pipe 5, circulating pipe 40, cold water intake pipe 4 and cold water reservoir 42 back to the heat exchanger 1. The temperature of circulating hot water is lowered by the cold water reservoir 42 so that the ability to prevent the hot water temperature from rising above a preset temperature is enhanced.
Owner:TLV CO LTD
Water supply adjusting method and device for reservoir group
ActiveCN104878800ARealize macro-controlAvoid the problem of abundance but no water supplyDrinking water installationWater withdrawalWater supply
Owner:HUAINAN MINING IND GRP +1
Workpiece cooling equipment used after hot-dip galvanizing operation
InactiveCN107151768APrevent backflowImprove cooling effectHot-dipping/immersion processesWater withdrawalWater flow
A workpiece cooling equipment used for hot-dip galvanizing, including a cooling water pool, a spray collection pool, a cooling and water removal fan, and a drainage water pump; the cooling device body is provided with a cooling water pool; one side of the cooling water pool is provided with a fan In addition to the water collection pool; the upper end of the fan water removal collection pool and the side wall of the cooling water pool is provided with a cooling and water removal fan; the other side of the cooling water pool is provided with a spray collection pool; on the upper end bracket of the side wall of the spray collection pool A spray cooling nozzle is provided; the water supply system of the cooling pool is provided with a pump for extracting ground water and a pump for extracting surface water; the drainage system of the cooling pool is provided with a drainage pump. The main body of the cooling device for the workpiece cooling equipment after hot-dip galvanizing is designed as a T-shaped structure. The two ears of the T-shaped are respectively the spray collection pool and the fan water removal collection pool, which are designed at the upper end to facilitate the cooling water to flow back to the cooling pool. .
Owner:十堰市协兴工贸股份有限公司
Water quality monitoring stratified sampling device
ActiveCN222882384UGeneral water supply conservationWithdrawing sample devicesWater storageWater withdrawal
The utility model discloses a water quality monitoring stratified sampling device, relates to the technical field of water quality sampling equipment, and aims to provide a water quality monitoring stratified sampling device which is simple in structure and capable of automatically sampling at a corresponding depth. A water inlet and outlet pipe is arranged on the side face of the submersible pump, the submersible pump is used for supplying water to the ballast tank or discharging water from the ballast tank, a storage battery is arranged in the submersible pump, and a sampling tank is arranged on the submersible pump. When the sampling tank moves to a water layer with the corresponding depth, the water pressure of the current position exceeds the supporting force of the spring, the water pressure extrudes the base plate open and then injects the water into the water storage cavity, after water taking is completed, the base plate is driven by the spring to reset, the purpose of automatically sampling the water quality of the corresponding water depth is achieved, and the achieved structure is very simple and reliable.
Owner:SUZHOU SHENGDI AUTOMATION EQUIP CO LTD
Water recession model establishment method and system based on long-distance pressure pipeline
The invention relates to the technical field of numerical simulation calculation of water conveyance projects, in particular to a water recession model establishment method and system based on a long-distance pressure pipeline. The method comprises the steps that a rigid water column model is constructed based on deformation of a motion equation and a continuity equation in the non-constant flowing process of fluid in a pressure pipeline, and a water column flow velocity equation and a water column length equation are established to describe liquid phase changes in the non-air-valve water recession process by combining change analysis of hydraulic parameters in the pressure pipeline on the time scale. The pressure intensity in a hollow pipe section at the upstream end of a pressure pipeline without an air valve is analyzed to describe the volume change in the hollow pipe section to construct an air-valve-free water recession model, the change of gas parameters of air passing through the air valve in the hollow pipe section at the upstream end of the pressure pipeline on the time scale is analyzed to construct an air-valve water recession model, and simulation is solved through the model. And predicting the change trend and fluctuation condition of the pressure water head in the upstream end hollow pipe section in the water recession process of the pressure pipeline. The method can accurately predict the recession process of the long-distance water delivery pipeline.
Owner:XIAN UNIV OF TECH +1
A method for preventing and controlling phosphorus-contaminated ditch matrix when paddy fields recede
ActiveCN104961241BImprove adsorption capacityNot easy to adsorbSludge treatmentBiological water/sewage treatmentSoil treatmentMatrix method
A method for preventing and controlling phosphorus-contaminated ditch matrix when paddy fields recede, relates to a method for remediating soil pollution, characterized in that the method includes soil treatment, fine sand treatment, red mud treatment, zeolite treatment, and immobilization Preparation of aerobic / anaerobic sludge, substrate for phosphorus removal, and substrate use: Lay the prepared substrate in the ditch and compact it. The compaction degree is 80%-100%. According to the characteristics of paddy field dewatering and phosphorus pollution concentration data, the thickness of the substrate It is 15‑30% of the water height in the ditch, the residence time of the paddy field water in the ditch is kept above 48 hours, and the removal rate of phosphorus reaches 60.5‑73.6%. The material of the invention is simple and easy to obtain, the treatment method is simple and easy to realize, and the characteristics of removing pollutants by physical and biological methods are integrated, and the practical application effect is good.
Owner:沈阳松辽环境工程有限公司
Heat storage system
Heat storage system (1) for storing heat, comprising a water storage tank (2) which has an inlet (Z_K) for cold water and an outlet (A_W) for drawing off hot water, wherein the heat storage system (1) comprises a storage charging system (3) which includes a pump (4) and an electrically operated, potable water-suitable instantaneous water heater (5), wherein the storage charging system (3) is connected to the water storage tank (2) by an outlet (A_K) for drawing off water to be heated or by the inlet for cold water and an inlet (Z_W) for the heated water or by the outlet for drawing off hot water, wherein the pump (4) and the instantaneous water heater (5) can be operated by means of renewable energy, characterized in that a control unit (6) is assigned to the instantaneous water heater (5) which is configured to receive data from an intelligent energy management device (7),which relate to the excess energy provided by an energy source (8), in order to control the storage charging system (3) depending on the evaluated data, which is designed to heat water withdrawn through the outlet (A_K) of the water storage tank (2) or the inlet for cold water depending on a target temperature value (T_Set) of the heat storage system (1) and to supply it to the water storage tank (2) via the inlet (Z_W) or the outlet of the water storage tank (2) for hot water withdrawal.
Owner:BORMANN BASTIAN
Water measuring groove for measuring open channel water intake quantity
InactiveCN100429490CHigh measurement accuracyEasy to rule outVolume/mass flow measurementVolume meteringWater withdrawalEngineering
The invention discloses a water measuring tank for measuring the water intake of an open channel, which is composed of an upstream gradually contracting section, a throat section and a downstream expanding and connecting section step by step. U-shaped, and a sub-groove is designed in the center of the groove bottom of the U-shaped throat section, and the width B2 of the sub-groove is 0.1 to 0.5 times the width B0 of the open channel. The water measuring tank for measuring the water intake of an open channel disclosed by the invention has the characteristics of high measurement accuracy for small flow rates, good sand discharge performance, no silt formation in the water measuring tank, simple structure, and low engineering cost. It is especially suitable for the measurement of water intake in open channels with large flow rate fluctuations and serious sedimentation.
Owner:SICHUAN UNIV
Inlet flow guide ring structure of vertical shaft rotational flow spillway tunnel
The invention discloses an inlet guide ring structure of a vertical shaft rotational flow spillway tunnel, and relates to the technical field of water conservancy and hydropower engineering. Comprising an inlet section, a volute chamber, a vertical shaft and a recession tunnel, the volute chamber and the vertical shaft are vertically arranged, the volute chamber communicates with the upper portion of the vertical shaft, the inlet section and the recession tunnel are horizontally arranged, the inlet section communicates with the volute chamber, and the recession tunnel communicates with the vertical shaft; at least two flow guide rings are arranged in the volute chamber, and each flow guide ring is of an arc-shaped plate structure; every two flow guide rings are grouped and arranged in the axial direction of the volute chamber at equal intervals, the two flow guide rings in the same group are arranged in an undercut mode along the inner wall of the volute chamber in the same direction, and the undercut angles of the two flow guide rings are the same. It is guaranteed that the joint between the inlet section and the volute chamber is not dammed or overtopped, the water surface height in the volute chamber is remarkably reduced, and water flow can stably and smoothly flow into the vertical shaft after swirling; the device is simple in structure, convenient to construct and operate, good in operation stability and not prone to being scoured and damaged by water flow.
Owner:CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
A Numerical Simulation Method of Water Intake Process in Social Water Cycle
InactiveCN104361152BEffective simulationTightly Coupled SimulationSpecial data processing applicationsWater useWater withdrawal
The invention provides a numerical simulation method for the water intake process of the social water cycle. Based on the simulation of the natural water cycle, the water intake process of the social water cycle in a certain area or basin is mathematically described, including the water source, the location of the water intake, the amount of water intake, the process of water intake, Water intake purposes, etc., through the numerical simulation of the water intake process of the social water cycle, more effectively simulate the impact of human economic and social water intake on the natural water cycle process, and realize the procedural close coupling simulation of the "natural-society" binary water cycle.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Municipal water taking machine site selection method and device based on multi-source data fusion and optimization algorithm and readable storage medium of municipal water taking machine site selection method and device
The invention provides a municipal water taking machine site selection method and device based on a multi-source data fusion and optimization algorithm and a readable storage medium thereof, and aims to solve the problems that fire-fighting hidden dangers are caused by disordered water taking of existing fire hydrants and a traditional site selection method is lagged in data, high in cost and the like. The method comprises the following steps: collecting fire hydrant water data in real time by using an intelligent blank cap, fusing multi-source data such as population density, POI, land utilization types and existing facility positions, and generating a water demand intensity grid; the grid demand is projected based on the actual road network distance, nodes are inserted, and weights are distributed; and a double-target optimization model of maximizing high demand coverage and minimizing water taking distance is constructed, and the optimal water taking machine position is solved in combination with budget constraint. According to the method, through multi-source dynamic data fusion and road network projection optimization, the equipment utilization rate is increased, the coverage demand proportion is increased, the average water taking distance is shortened, the cost is reduced, and the municipal water demand and the equipment deployment efficiency are effectively balanced.
Owner:HANGZHOU ZHIBIN TECH CO LTD
7.63m coke oven horizontal tube primary cooler cleaning method
ActiveCN106871707BEfficient removalReduce formationInorganic/elemental detergent compounding agentsSurface-active detergent compositionsWater storage tankInlet valve
The cleaning method of the 7.63m coke oven horizontal tube primary cooler belongs to the field of coal chemical equipment maintenance. It includes a water storage tank. The characteristic is that the water storage tank is connected to a water pump. The output pipe of the water pump passes through the pipeline and the cleaning water valve and the horizontal tube primary cooling The water inlet pipe of the device is connected, and the cleaning water valve is connected between the circulating water inlet valve and the water inlet pipe of the horizontal tube primary cooler. The water outlet pipe of the horizontal tube primary cooler is connected to the water storage tank through the pipeline and the water withdrawal valve. The water withdrawal valve It is installed between the high-temperature section and the medium-temperature section circulating water outlet valve and the water outlet pipe of the horizontal tube primary cooler. The invention not only effectively removes calcium scale inside the horizontal tube primary cooler, but also forms a protective film on the inner wall of the horizontal tube primary cooler to reduce the formation of calcium scale; and can be processed online to avoid equipment corrosion.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD
Eel breeding water taking device
The invention discloses an eel breeding water taking device, and belongs to the technical field of eel breeding, the eel breeding water taking device comprises a main body, the outer wall of the main body is fixedly connected with a plurality of retaining rings, the inner walls of every two retaining rings are fixedly connected with leather rafts, and an adjusting mechanism is installed in the main body; a support is fixedly connected to the top of the outer wall of the adjusting mechanism, an iron plate is fixedly connected to the top of the support, a water taking mechanism is installed in the adjusting mechanism, and a moving mechanism is installed at the bottom of the water taking mechanism. According to the eel water taking device, by designing the adjusting mechanism, the water taking mechanism and the moving mechanism, when the eel water taking device is used, water taking on different water layers in a culture pond is achieved by controlling the water taking height of the device, and then culture management personnel can more accurately control the water quality according to needs by taking water on different water layers; therefore, the water quality condition is adjusted according to different breeding stages, the breeding benefits are optimized, and meanwhile water in different water layers can be pumped.
Owner:江西华谊食品有限公司
Method and system for detecting water receding time at water accumulation points
ActiveCN106643920BTo change the disadvantages of not being able to know the time of stagnant water recedingAchieve real-time on-site acquisitionRainfall/precipitation gaugesVolume/mass flow measurementPondingWater withdrawal
Owner:TAIHUA WISDOM IND GRP CO LTD
Drinking water supply system having an acoustic sensor or a presence detector, method for controlling the same, and computer program
ActiveUS11499299B2Operational securityEnsure safe operationLighting and heating apparatusFlushing devicesAnimal scienceWater withdrawal
A drinking water supply system includes a drinking water line system, a plurality of drinking water withdrawal points connected to the drinking water line system, at least one sensor which is designed to determine measuring values, and a central control device which is designed to receive and evaluate the measuring values determined by the at least one sensor. The system also includes a presence detector designed to determine information about the presence of a person, or an acoustic sensor designed to measure measuring values for the volume. The central control device is designed to control the drinking water supply system as a function of the information about the presence of a person or as a function of the measured values for the volume. A method for controlling such a drinking water supply system and a computer program that causes the method to be carried out are also provided.
Owner:VIEGA TECH GMBH & CO KG
Shaft spillway energy dissipation structure
The utility model provides a shaft spillway energy dissipation structure which comprises a stilling pool and a stilling beam, the head portion of the stilling pool is arranged below a shaft, the tail portion of the stilling pool is connected with a recession tunnel, the bottom of the stilling pool is flush with the bottom of the recession tunnel, the height of the stilling pool is larger than that of the recession tunnel, and the stilling beam is connected with the stilling pool. Water flows into the recession tunnel through the vertical shaft and the stilling pool in sequence, the stilling beam is arranged in the middle of the stilling pool, and the extending direction of the stilling beam is perpendicular to the main flow direction in the stilling pool. The flat-bottom stilling pool and the stilling beams are arranged at the bottom of an existing vertical shaft, a common cylindrical stilling well is replaced, the energy dissipation effect can be enhanced, the pulsating load of a bottom plate of the stilling pool and the fluctuation of the water surface in the pool are reduced, and the stilling structure has the advantages of being safe in structure, smooth in outflow and the like.
Owner:THREE GORGES JINSHAJIANG CHUANYUN HYDROPOWER DEV CO LTD
A method for controlling the density of low-efficiency artificial forests
InactiveCN108605787BEasy to reinforceImprove efficiencyData processing applicationsForestryProtection forestWater withdrawal
The invention relates to the technical field of forest management, in particular to a low-efficiency artificial-forest density control method. The method includes: performing initial investigation onselected target forest stand, determining area, average rainfall and average runoff depth of the target forest stand, selecting single standard wood and measuring leaf area index; calculating maximumallowed water withdrawal of the target forest stand; calculating transpiration water consumption of the single standard wood; according to the maximum allowed water withdrawal of the target forest wood and the transpiration water consumption of the single standard wood, calculation the maximum forest stand density of the target forest stand; according to the maximum forest stand density, performing intermediate cutting of thick forest or reinforcement planting of thin forest. Therefore, fitting density of the target forest stand with different dimensions can be acquired by only measuring the leaf area index, the forest stand density is controlled by assistance of intermediate cutting or reinforcement planting, an ecology protection forest system with uniform forest structure and function target is easy to form, the leaf area index is easy to acquire, and easiness in operation is achieved.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Boiled water system and drinking water device
The present invention relates to the technical field of drinking water equipment, and specifically provides a boiled water preparation system and a drinking water device, aiming to solve the problem that the water output of existing boiled water dispensers is low and cannot meet the needs of users for large-scale water withdrawal. To this end, the boiled water preparation system of the present invention includes a heat exchanger, a filter device, a heater, a water storage tank, and a water outlet; wherein the heat exchanger includes a cold water inlet, a cold water outlet, a hot water inlet, and a warm water outlet; the water outlet end of the filter device is connected to the cold water inlet; the two ends of the heater are respectively connected to the cold water outlet and the hot water inlet; the chamber of the water storage tank is connected to the warm water outlet; the water outlet is connected to the chamber of the water storage tank; wherein a water pump is provided between the chamber of the water storage tank and the water outlet. The boiled water that has undergone heat exchange and cooled is stored in the chamber of the water storage tank. When the user withdraws water, the boiled water in the chamber of the water storage tank is continuously output in large quantities by means of the water pump, which greatly saves the user's water withdrawal time and improves the user experience.
Owner:QINGDAO HAIER STRAUSS WATER EQUIP CO LTD +1
Method for detecting a water withdrawal from a hot water tank and method for controlling a temperature of water provided in a hot water tank
The invention relates to a method for detecting a hot water withdrawal from a hot water tank (4), wherein the hot water tank (4) is integrated into a hot water circuit (2) with a heater (12) and a pump (14), and the hot water circuit (2) has a domestic water inlet (8) for refilling water, wherein the method comprises the following steps: determining measured values of a water inlet temperature over time by means of a water inlet temperature sensor (18) arranged at the domestic water inlet (8), determining a water withdrawal characteristic from the measured values of the water inlet temperature by means of a control and evaluation unit (24), wherein the water withdrawal characteristic is a variance of the measured values of the water inlet temperature or a value derived from the variance, and comparing the determined water withdrawal characteristic with a predetermined water withdrawal limit value by means of the control and evaluation unit (24),wherein a water withdrawal from the hot water tank (4) is detected when the water withdrawal parameter exceeds the water withdrawal limit. The invention further relates to a method for regulating a temperature of water provided in a hot water tank (4).
Owner:TRUMA GERATETECHNIK GMBH & CO KG
Drinking water supply system for supplying drinking water consumers in a residential unit
A drinking water supply system (10) for supplying drinking water consumers of a residential unit has a first pipe (12) and a second pipe (14) which are connected to at least one first consumer (30) for drinking water withdrawal, wherein one of the first and second pipes (12, 14) is designed for cold water supply and the other of the pipes (12, 14) is designed for hot water supply, wherein the first and second pipes (12, 14) are subjected to a first flow direction when water is withdrawn by the first consumer, and wherein the second pipe (14) is connected upstream of the first consumer via a flushing pipe (50) to a toilet (48) in order to supply water from the second pipe (14) to the toilet (48) for flushing.The second line (14) has a selectively actuated shut-off valve (44) upstream of the flushing line (50) with respect to the first flow direction. This valve is designed such that when the toilet (48) is flushed, the shut-off valve (44) closes automatically and then reopens, allowing water from the second line to flow through the flushing line (50) to the toilet (48) for flushing. A first bypass element (34) bridges the first consumer between the first line and the second line.
Owner:BALG HANS ALFRED +1
A sewage utilization retreat water culvert device
ActiveCN111720874BSolve the problem of retrieving water point spacing requirementsSmall footprintLighting and heating apparatusSpace heating and ventilation detailsWater withdrawalEngineering
The invention discloses a sewage utilization retreating water culvert device, which relates to the technical field of sewage utilization. It includes a square culvert body, a first sewage pipe and a second sewage pipe are arranged near the left and right sides of the square culvert body, a sealing mechanism is arranged between the first sewage pipe and the second sewage pipe, and the first sewage pipe The front side of the pipe is provided with a drain hole, and the front side of the second sewage pipe is provided with a water diversion hole, and the front side of the drain hole and the diversion hole are both provided with a filter mechanism, and the circle corresponding to the drain hole A drain pipe is provided on the front side of the square culvert body in front of the hole, and a water diversion pipe is provided on the front side of the square culvert body at the front side of the round hole corresponding to the water diversion hole. The invention occupies a small area, has a simple structure and low construction difficulty, solves the problem of the existing sewage water point spacing requirement, reduces the power consumption of the sewage lifting pump, and effectively avoids the blockage of the water diversion pipe and the water return pipe.
Owner:HENAN WANJIANG NEW ENERGY DEV CO LTD
A method for early warning of urban rain and flood submerged areas
ActiveCN109186706BThe measured data are convincing and validAccurate predictionFluid pressure measurementMachines/enginesEnvironmental resource managementWater withdrawal
A method for warning of an urban flooded area comprises four functional modules: (M1) a real-time water level observation module in the urban flooded area; (M2) a sensor layout module for municipal pipelines in the urban flooded area; (M3) an early warning indicator calculation module; and (M4) a live and early warning plane output module. The method provided by the invention has the beneficial effects that: 1, during the flood, the city manager can verify the water level data of the flooded area and the water surface image, so that the measured data is more convincing and effective; 2, new water level measuring device and method in the urban flooded area are provided; and 3, a water withdrawal process line of the flooded area can be accurately predicted.
Owner:NANJING HAWKSOFT TECH +1
Water purification equipment, water replenishment control method, device and computer equipment
The present application relates to a water purification device and its water replenishment control method, apparatus, computer equipment, storage medium, and computer program product. The method comprises: obtaining user water withdrawal data within a preset period; obtaining the probability of user water withdrawal at different time points during the preset period based on the water withdrawal data; comparing the user water withdrawal probability with a preset water withdrawal probability threshold to obtain a comparison result; and performing water replenishment control based on the comparison result. In the entire solution, the probability of user water withdrawal at different time points during the day is analyzed based on historical data, and then, based on this probability, the user's water withdrawal needs at different time points are accurately determined and targeted water replenishment control is performed, thereby achieving dynamic intelligent water replenishment, avoiding frequent water pump startup, meeting user needs, and bringing convenience to users.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI