78results about How to "Reduce water waste" patented technology

A centralized irrigation system provides decision-making or non-decision-making controllers in combination with a client server architecture that employs range-based irrigation algorithms for monitoring and control. Range-based control strategies determine a total volumetric water holding capacity for a volume of soil and a range of desirable soil moisture in a root zone, and compare a calculated root zone soil moisture to that range in order to determine the volume of water to be applied during an irrigation event. The system permits a shared-savings business model where the vendor provides a system and the customer only pays the vendor a portion of the savings obtained by using the system.

A washing machine and control method thereof are disclosed, by which water waste is reduced and by which an error or malfunction of the washing machine is detected and by which the detected error or malfunction of the washing machine is notified to a user. The present invention includes the steps of measuring an initial temperature of water supplied within a steam generator for providing steam to a drum, heating the water within the steam generator for a set time, measuring a temperature of the heated water within the steam generator, calculating a difference between the heated water temperature and the initial water temperature, and deciding a presence or non-presence of abnormality of the steam generator based on the calculated temperature difference.

A portable food tray pre-wash and water recycling apparatus and method for pre-washing reusable food trays prior to placement in a separate cleaning and sanitizing unit that significantly reduces water wasted in kitchen and scullery areas. The apparatus includes a portable cabinet having a slot in a top end for inserting a food tray, laterally opposed spray nozzles beneath the slot that spray both sides of the tray, laterally opposed rotating brushes beneath the nozzles that scrub the tray, a tray support and brush comb member that supports the tray in a vertical position and removes particles from the brushes, a series of removable incrementally smaller gauge filters vertically spaced beneath the brushes that slide in from one side to filter the water, a water reservoir beneath the filters, a heating unit to heat and disinfect the filtered water, and a pump that recycles heated water back to the nozzles.

The invention relates to an integrated reversible fuel cell system which comprises a hydrogen production power generation module formed by a fuel cell stack, a hydrogen circulation module, an oxygen circulation module and a water circulation module. The fuel cell stack is composed of a plurality of single cells which are stacked sequentially, a hydrogen inlet, a hydrogen outlet, an oxygen inlet, an oxygen outlet, a cooling fluid inlet and a cooling fluid outlet; each single cell is composed of a conductive plate and a membrane electrode; the hydrogen circulation module is connected with the hydrogen inlet and outlet of the fuel cell stack; the oxygen circulation module is connected with the oxygen inlet and outlet of the fuel cell stack; the water circulation module is connected with the cooling fluid inlet and outlet of the fuel cell stack; and in the system, power generation by the fuel cells is carried out in a forward process, and hydrogen production by electrolyzed water is carried out in a reverse process. Compared with the prior art, the integrated reversible fuel cell system has the advantages of being simple and compact in structure, lowering the cost, recycling water, hydrogen and oxygen raw materials, and integrated in management such as gas-water separation, and the like.

A portable irrigation device and a method of use are disclosed herein. The disclosed irrigation device generally comprises an adapter configured to be connected to a water source; a pressure regulation device connected to said adapter; segments of fluid supply tubing in fluid communication with said pressure regulation device and configured to form two approximately concentric circles, wherein said two circles form an outer circle and an inner circle, and wherein said outer circle is in fluid communication with said inner circle via one or more radial segments of fluid supply tubing connecting said outer circle to said inner circle; and a plurality of emitter elements disposed along said segments of fluid supply tubing at predetermined intervals. The disclosed irrigation device may be utilized to water any plant in need of targeted irrigation, including shallow-rooted plants such as flowers and dry areas of grass in lawns, as well as deep-rooted plants such as shrubs and trees.

Disclosed is a pond culture circulation system based on a bio-toilet module including a culture pond and an annular treatment channel surrounding the culture pond. The annular treatment channel is sequentially provided with a sedimentation zone, a biological purification zone and a water storage zone along a direction of water flow. The culture pond includes a plurality of culture pond units. Each of the plurality of culture pond units is provided with a bio-toilet module in communication with the sedimentation zone through a sewage pipe. The water storage zone communicates with each of the plurality of culture pond units through a gravity-flow culvert. The invention further discloses a use method of the pond culture circulation system based on the bio-toilet module.

A filter cartridge cleaning apparatus includes a housing, a brush mechanism for cleaning a filter cartridge passing through the housing, a guiding mechanism for feeding the filter cartridge toward a filter cartridge outlet of the housing, a water supply mechanism for supplying water to the filter cartridge, and a transmission mechanism for driving the brush mechanism and the guiding mechanism. The housing has a drain for draining sewage resulting from the cleaning process. The filter cartridge cleaning apparatus may be used with a water recycling apparatus to eliminate waste of water.

Method and apparatus determining the water absorption gradient and controlling the irrigation system based upon the water absorption gradient. The means for determining uses at least a first electrical coupling and a second electrical coupling, which electrically couple with a first probe and a second probe, placed in the soil near the at least one plant.

A toilet has a trapway extending between a bowl opening and an outlet opening. The trapway defines a curved, preferably uniform circular cross-section water dam region above the bowl opening, a down leg, and a straight out leg between the down leg and the outlet opening. The down leg has a rearward slope where is located a horizontal baffle. The inclined down leg and horizontal baffle work in concert to prevent the back flow of air to a region above the dam as well as to facilitate rapid entrainment and evacuation of air below the dam.

A toilet has a trapway extending between a bowl opening and a toilet outlet opening. A heel links and provides a bend between a down leg and an out leg of the trapway. The heel has a cross-sectional profile having a major dimension and a minor dimension. The major dimension increases as the down leg transitions into the heel and reduces as the heel transitions into the out leg. This heel configuration in the trapway forms a siphon during a flushing action of the toilet.

The invention discloses a cross-basin hydropower station group peak regulation optimization scheduling method considering a water abandoning risk. The method comprises the following steps of S1, constructing a hydropower station group peak regulation optimization scheduling model; S2, calculating the water abandoning risk of each cascade hydropower station; S3, coordinately distributing the generating capacity of each power station based on the water abandoning risk of each power station; and S4, calculating an optimal solution of the hydropower station group peak regulation optimization scheduling model based on the electric quantity distribution of each power station to obtain an output process line of each power station, and completing hydropower station group combined peak regulation scheduling. The hydropower station water abandoning risk is quantitatively analyzed through the runoff frequency. The peak shaving electric quantity of the hydropower station groups in different drainage basins is coordinated and distributed based on the water abandoning risk value, so that the water abandoning risk of each hydropower station can be fully considered, the runoff compensation and power compensation benefits of the hydropower station groups in different drainage basins are exerted, the hydropower water abandoning risk is greatly reduced during peak shaving of the power grid hydropower system, and the hydropower water abandoning electric quantity is reduced.

A washing machine and control method thereof are disclosed, by which water waste is reduced and by which an error or malfunction of the washing machine is detected and by which the detected error or malfunction of the washing machine is notified to a user. The present invention includes the steps of measuring an initial temperature of water supplied within a steam generator for providing steam to a drum, heating the water within the steam generator for a set time, measuring a temperature of the heated water within the steam generator, calculating a difference between the heated water temperature and the initial water temperature, and deciding a presence or non-presence of abnormality of the steam generator based on the calculated temperature difference.

The invention discloses a control device for a water purifier, the water purifier and a control method for the water purifier. The control device comprises a TDS detector (2) and a control circuit (4), wherein the TDS detector (2) is adaptively arranged on a raw water inlet pipeline of the water purifier and is used for detection of the TDS value of raw water flowing into the water purifier; and the control circuit (4) is respectively and adaptively arranged with the TDS detector (2) and the water purifier; and the control device is used for judging whether the TDS value meets a set value or not, and regulates the raw water inflow amount of the raw water inlet pipeline when the TDS value does not meet the set value. According to a scheme of the invention, disadvantages like waste of water resources, small application range and poor user experience in the prior art can be overcome; and beneficial effects of conservation of the water resources, large application range and good user experience are realized.

The invention relates to a crude oil emulsifier for water shutoff of an oil well and a preparation method and the application of the crude oil emulsifier. The crude oil emulsifier for water shutoff of the oil well is made of dimethylamine, epichlorohydrin, water and oleic acid. The preparation method of the crude oil emulsifier for water shutoff of the oil well includes the steps: mixing dimethylamine and part of water in a reaction kettle; quartering epichlorohydrin, and adding one quarter of epichlorohydrin into the reaction kettle every one to three hours; and naturally cooling after adding of the epichlorohydrin is completed, adding the rest water, mixing, and adding oleic acid to obtain the crude oil emulsifier for water shutoff of the oil well. The crude oil emulsifier for water shutoff of the oil well is an excellent crude oil emulsifier and capable of greatly improving strength of viscous crude emulsifying water shutoff agent, and has high stability.

A water inlet valve includes a water sealing piston installed in a water inlet pipe and a top cover. A water storage cylinder is fixed outside the water inlet pipe. A lower water cavity has an upper air vent and a lower water inlet. A siphon is arranged in a water storage cavity and communicated with the lower water cavity. A first magnetic element is arranged on a floater. A small buoy is arranged outside the water storage cylinder to open and close the upper air vent. A gutter is formed on the periphery of the top cover. A lever and an eccentric shaft are arranged outside the water inlet pipe and the top cover. The connecting rod is connected with the lever and the eccentric shaft. The lever is provided with an energy storage spring, a second magnetic element, and a restoring spring.

A water heater insert device positioned within an electrical showerhead or as a standalone liquids heating device. The water heater insert optimizes heat transfer by channeling water through a channel of a spiral or zigzag form where a deployed heating element supplies thermal energy. The channel maximizes water contact while minimizing the space. A temperature limiter adds protection against scalding.

The invention provides a rotary drum washing machine and relates to the technical field of household electric appliances. The rotary drum washing machine comprises a housing, a washing barrel and a driving device, wherein the washing barrel is disposed in the housing; the driving device is placed under the washing barrel; the rotary drum washing machine further comprises a supporting device; the washing barrel is fixed in the housing via the supporting device; and the supporting device is formed by an upper spacing plate, a lower spacing plate, a spring, an inner ring, a rolling ball and an outer ring. By the use of the rotary drum washing machine, complicate steps and repeated operation for washing tank cleaning by cleaning agent and germs can be eliminated; with the single-layered washing barrel, water waste can be avoided and water resource can be reduced; germ generation rate can be greatly lowered by the use of the single-layered washing barrel, so healthy washing can be achieved; and with the special supporting device, a balance ring is avoided and stable and quiet washing work can be achieved for the washing machine.

A toilet has a trapway extending between a bowl opening and an outlet opening. The trapway defines a curved water dam region above the bowl opening, a down leg, and a straight out leg between the down leg and the outlet opening. The out leg has an air dam cavity such that the trapway has an increased cross-sectional area at the air dam.

The invention discloses a water supply pipe network management method, device and equipment, and the method comprises the steps: obtaining the operation data of all equipment in a water supply pipe network, and building a management equipment map based on the operation data through openlayers; acquiring water supply data of valves of all pipelines in a water supply network, and further constructing a management equipment map according to the water supply data; and simulating whether the water supply pipeline leaks and explodes or not through the management equipment map, if yes, giving an alarm, and positioning the safety valve closest to the pipe explosion point through the management equipment map. According to the application, the pipe network distribution diagram conforming to the water company is made through openlayers; by means of the pipe network distribution diagram, the pipe network condition of a water company can be directly checked, a water supply pipe network can be conveniently managed, pipe explosion damage of a pipeline can be simulated through the pipe network distribution diagram, pipe explosion of the pipeline is prevented in advance, and water resource waste caused by rush repair after pipe explosion is greatly reduced.

The invention provides a multi-point injection uniform pressure cleaning device. The multi-point injection uniform pressure cleaning device comprises a plurality of vortex water flow nozzles and a robot image vision positioning system which is connected with multiple vortex water flow nozzles, a plurality of vortex water flow nozzles are distributed in the perianal and nearby areas of the human body; the robot image vision positioning system obtains the space positioning geometry information of the target cleaning area, and controls the injection parameters of multiple vortex water flow nozzles according to the spatial positioning geometry information. The invention simultaneously provides the multi-point injection uniform pressure cleaning and the application of the above-metioned multi-point injection uniform pressure cleaning device. The multi-point injection uniform pressure cleaning device adaptively locates the perianal cleaning area by means of image vision positioning technology, adopts, a plurality of micro-robots capable of automatically controlling the injection elevation angle and the speed according to the multi-point water flow injection principle, utilizes the reasonably distributed angle and the speed of the water flow, and realizes the multi-angle, all-round swirl cleaning and nursing greatly improves the efficiency and effect of cleaning, and has the advantages of high efficiency, quick and better comfort.

An adjustable sprinkler system distributes water from a garden hose through a feed housing to a pair of pivotally attached arms. There is a sprinkler unit attached near the end of each arm. Each sprinkler unit has an interchangeable spray head attached that is specific to the desired watering pattern. By pivoting the arms away from one another, the sprinkler system is placed on either side of the base of the shrub or tree to be watered. This adjustable sprinkler system accommodates newly planted and existing small to large and short to tall trees and shrubs, provides a multitude of spray patterns at varying water volumes, and minimizes water waste.

The invention discloses an industrial environment-friendly wet-curtain dust remover, belonging to the technical field of wet-curtain dust removers. The industrial environment-friendly wet-curtain dustremover comprises a shell and supporting legs, wherein the supporting legs are arranged at the bottom end of the shell; an air inlet is formed in the upper part of the left side wall of the shell; anair outlet is formed in the upper part of the right side wall of the shell; a dust blocking cover is arranged on the left side of an inner cavity of the shell; and a metal net is arranged at the upper part of the right side wall of the dust blocking cover. According to the invention, the dust blocking cover and the metal net on the dust blocking cover are arranged to intercept large-particle impurities in industrial waste gas and prevent the large-particle impurities from direct contact with wet curtains, so the service life of the wet curtains is prolonged; the industrial waste gas can be more fully purified through arrangement of two groups of wet curtains; by arranging a piston water supply mechanism, circulating water supply can be achieved, and water resource waste is reduced; and byarranging a driving mechanism, the piston water supply mechanism can be driven to supply water in a circulating mode, fan blades can be driven to rotate so as to exhaust air, reasonable and efficientutilization of electric energy is achieved, and energy loss is reduced.

An apparatus for detecting an error in the measurement of a water level in a washing machine includes a water level sensor measuring a water level in a washing tub; a water supply and drain device supplying water to the washing tub or discharging water from in the washing tub; and a control unit controlling the water supply and drain device to adjust the water level in the washing tub, and detecting a measurement error of the water level sensor based on a water level change measured by the water level sensor while the water level is adjusted.

The invention is about an electrolysis water purifier for adjusting water outlet proportion capable of stably producing or efficiently using electrolytic ion water. The electrolysis water purifier is provided with an acid water adjusting bolt for adjusting the water outlet amount of primary acid water at the primary acid water discharge port of a first electrolytic tank, an acid water outlet bolt for adjusting the water outlet amount of the secondary acid water discharged after mixed with the primary acid eater discharged through the acid water adjusting bolt at the secondary acid water discharge port of a second electrolytic tank, a strong alkaline water outlet bolt for adjusting the water outlet amount of strong alkaline water at a strong alkaline water discharge port, and a weak alkaline water outlet valve for adjusting the water outlet amount of weak alkaline water at a weak alkaline discharge port, thus the water outlet proportion of the three types of electrolytic ion water can be adjusted. Therefore, in the invention, the electrolysis water purifier of three types of electrolytic ion water can be stably produced with efficient water outlet proportion by adjusting the water outlet proportion of the three types of produced electrolytic ion water, thereby being capable of reducing the problems existing in the prior art to the maximum extent.

The invention discloses a concentrated cooling and lubricating system of hood equipment. The system comprises a cooling source, a first-grade cooling heat exchanger and a second-grade cooling heat exchanger, wherein the cooling source cools cooling water to generate frozen water; the frozen water is output to the first-grade cooling heat exchanger; the cooling water is cooled by the frozen water in the first-grade cooling heat exchanger, and is output to the second-grade cooling heat exchanger; and lubricating oil is cooled in the second-grade cooling heat exchanger. A central cooling system of packing machine lubricating oil is built by redundant energy of a central air conditioner through using such requirements as production guarantee, energy conservation and reliability increment as guidance thoughts based on the national standard (GB / T786.1-2009) of lubricating oil temperature process requirements, so that the lubricating oil cooling problem can be effectively solved, and the purposes of increment of equipment perfectness ratio, safety, high efficiency and high-quality production can be achieved.

A method for converting a salt-based ion exchange water softener into a brine-based system. The system includes a resin tank containing an ion exchange media, a batch tank containing crystalline salt, a master valve for directing water flow through selected portions of the softener system, a brine conduit connecting the batch tank to the master valve, and a controller for managing the master valve position to define at least operating, brine fill, and brine draw cycles. A control valve is installed in the brine conduit to prevent fresh water flow from the master valve to the batch tank and the crystalline salt in the batch tank replaced with a quantity of liquid brine. It is preferable to adjust the duration of the brine draw cycle to limit the brine draw cycle to the minimum time necessary to provide sufficient brine to the resin tank to recharge the ion exchange media.