5227 results about "Water reservoir" patented technology

A cordless ultrasonic scaler includes a cleaning tip, an actuator, power supply, control circuitry, a water reservoir and a pumping mechanism within the hand piece. A piezoelectric stack actuator drives both the cleaning tip and pumping mechanism. The reservoir in the hand piece supplies liquid to the pump for cooling the actuator, the cleaning tip and the teeth being cleaned. The reservoir defines a battery compartment. A pair of electrodes enable recharging the battery in a docking station when the device is not in use. Controls are provided for the actuator and fluid flow.

Integrated surface-subsurface modeling has been shown to have a critical impact on field development and optimization. Integrated models are often necessary to analyze properly the pressure interaction between a reservoir and a constrained surface facility network, or to predict the behavior of several fields, which may have different fluid compositions, sharing a common surface facility. The latter is gaining a tremendous significance in recent deepwater field development. These applications require an integrated solution with the following capabilities: * to balance a surface network model with a reservoir simulation model in a robust and efficient manner. * To couple multiple reservoir models, production and injection networks, synchronising their advancement through time. * To allow the reservoir and surface network models to use their own independent fluid descriptions (black oil or compositional descriptions with differing sets of pseudo-components). * To apply global production and injection constraints to the coupled system (including the transfer of re-injection fluids between reservoirs). In this paper we describe a general-purpose multi-platform reservoir and network coupling controller having all the above features. The controller communicates with a selection of reservoir simulators and surface network simulators via an open message-passing interface. It manages the balancing of the reservoirs and surface networks, and synchronizes their advancement through time. The controller also applies the global production and injection constraints, and converts the hydrocarbon fluid streams between the different sets of pseudo-components used in the simulation models. The controller's coupling and synchronization algorithms are described, and example applications are provided. The flexibility of the controller's open interface makes it possible to plug in further modules (to perform optimization, for example) and additional simulators.

A system for managing bulk liquids for an automated clinical analyzer. The system comprises (a) at least one local reservoir for storing a bulk liquid for impending use, (b) at least one container for holding a bulk liquid before the liquid is transferred to a local reservoir, and (c) a controller for monitoring the level of a bulk liquid in a local reservoir. The local reservoir for storing a bulk liquid for impending use can be a trough. The use of troughs for storing a reagent, a diluent, or some other treating agent for impending use enables an aspirating / dispensing device having a plurality of pipettes to aspirate and dispense the reagent, diluent, or other treating agent at a high rate of throughput. The controller can monitor the level of a liquid in (a) a local reservoir for storing a bulk liquid for imminent use and the level of liquid in a (b) container for holding a bulk liquid before the liquid is transferred to a local reservoir. In the laboratory automation system described herein, the container for holding a bulk liquid before the liquid is transferred to a local reservoir can be a bottle. Other desirable features in the system include, but are not limited to, pump(s), valves, liquid level sensors.

A water treatment system provides treated or softened water to a point of use by removing a portion of any hardness-causing species contained in water from a point of entry coming from a water source, such as municipal water, well water, brackish water and water containing foulants. The water treatment system typically treats the water containing at least some undesirable species before delivering the treated water to a point of use. The water treatment system has a reservoir system in line with an electrochemical device such as an electrodeionization device. The water treatment system has a sensor or a set of sensors for measuring at least one property of the water or an operating condition of the treatment system. The water treatment system also has a controller for adjusting or regulating at least one operating parameter of the treatment system or a component of the water treatment system to optimize the operation and performance of the system or components of the system to supply water tailored to quality requirements.

A roof top cooling unit has an evaporative cooling section that includes at least one evaporative module that pre-cools ventilation air and water; a condenser; a water reservoir and pump that captures and re-circulates water within the evaporative modules; a fan that exhausts air from the building and the evaporative modules and systems that refill and drain the water reservoir. The cooling unit also has a refrigerant section that includes a compressor, an expansion device, evaporator and condenser heat exchangers, and connecting refrigerant piping. Supply air components include a blower, an air filter, a cooling and / or heating coil to condition air for supply to the building, and optional dampers that, in designs that supply less than 100% outdoor air to the building, control the mixture of return and ventilation air.

An apparatus for removing formation sand from an oil storage tank. The apparatus is mounted to a truck towable trailer so that it may be transported to remote sites. Mounted to the truck towable trailer is a container adapted to accept and dewater a sand-water slurry pumped from the oil storage tank. The slurry is formed by injecting high pressure water from a water reservoir mounted to the truck towable trailer into the approximate centre of mass of the formation sand by way of a pipe having a nozzle generating a spherical spray pattern within the slurry. The pipe is forced into the slurry by way of a two counter-rotating drive wheels in frictional contact with the pipe. Included in the apparatus is a bifurcated conduit adapted for attachment to the storage tank drain port adapted for the injection of high pressure through one branch of the conduit and withdrawal of slurry from the other branch and into the container by way of a slurry pump. The dewatering of the slurry takes place by a plurality of screen filters mounted to the bottom, side and front inside walls of the container. Oil and water extracted from the slurry is recycled back into the storage tank for later removal and treatment. All pumps and conduits are mounted to the truck towable trailer so that the apparatus is self-contained.

A reservoir production control system includes a plurality of wells for producing a reservoir linked to a central computer over a downhole communication network and a surface communication network. Both the downhole and the surface communication networks are wireless communications paths for transmitting downhole data and surface data to the central computer. Both networks include a series of interconnected tubing or pipe that allows transmission of data over electrically isolated portions of the pipe and tubing. After integrating and analyzing all relevant data and comparing the data with a reservoir model, the central computer initiates changes in a plurality of downhole control devices associated with the wells, thereby optimizing the production of the reservoir.

A vertical planter includes stackable planter units each with plural sections in which plural plants can be planted. Each section of a planter unit can have a removable faceplate for placing soil in the planter section and planting plants in the soil, or potted plants can be placed in the faceplate openings. Water is provided to each planter section via a drip irrigation tube fed from a main water supply tube that extends to each planter unit. The drain water from each planter unit drains down through an underlying planter unit and into an underlying water reservoir.

A compressed air pumped hydro energy storage and distribution system includes a first reservoir of water and a second reservoir of air and water. An air pressure source, connected to the second reservoir, develops a pressure head in the second reservoir. A pump / turbine-motor / generator, received by the first reservoir, is connected to a regional energy grid. During peak demand periods, the pressure head forces water through the pump / turbine-motor / generator to generate power, delivered to the grid. During low demand periods, the pump / turbine-motor / generator pumps water back to the second reservoir, regenerating the pressure head. A third air reservoir interconnected with the second reservoir and a gas turbine generator can be used to generate power during peak demand periods. The reservoirs can be tunnels or abandoned mines, reinforced and sealed by pressure grouting and / or an internal liner, maintained well beneath the earth's surface and intersecting the path of the grid.

The disclosed invention provides intelligent adaptive control for optimization of production output, energy efficiency and safety of a linear reciprocating long stroke hydraulic lift system, for use at the surface of oil and gas wells to extract fluids or gas after free flowing stopped due to natural decline of reservoir pressure.The hydraulic pump and its adaptive control system introduced in this invention are capable of optimizing its production capacity by varying multiple operating parameters, including its stroking length and speed characteristics continuously and instantaneously at any point. Merits and benefits of this invention include significant increase in production efficiency, improved durability and longevity of the pumping equipment, significant power consumption savings and an ability to adapt effectively to changing well conditions.

The invention relates to a method of performing an oilfield operation of an oilfield having at least one wellsite, each wellsite having a wellbore penetrating a subterranean formation for extracting fluid from an underground reservoir therein. The method steps include obtaining a plurality of real-time parameters from a plurality of sensors disposed about the oilfield, wherein the plurality of real-time parameters comprise at least one selected from a group consisting of real-time flow rate data and real-time pressure data of the wellbore, configuring a gridless analytical simulator for simulating the underground reservoir based on the plurality of real-time parameters, generating real-time simulation results of the underground reservoir and the at least one wellsite in real-time using the gridless analytical simulator, and performing the oilfield operation based on the real-time simulation results

Inkwells adapted for use in direct-write nanolithography and other applications including use of wells, channels, and posts. The wells can possess a geometry which matches the geometry of tips which are dipped into the inkwells. The channels can be open or closed. Hydrophilicity and hydrophobicity can be used to control ink flow. SEM can be used to characterize the inkwells. Ink flow can be monitored with video. Hydrophobic material layers can be used to prevent cross contamination. Microsyringes can be used to fill reservoirs. Satellite reservoirs can be used to prevent bubble formation.

A sorbent hemodialysis system includes a dialyzer configured to receive a flow of clean dialysate from a reservoir and to output an unclean dialysate flow. The system also includes a sorbent component having a urease section and a sorbent section through which the unclean dialysate flow from the dialyzer passes, wherein the sorbent component removes urea from the dialysate. The system further comprises a membrane electrolyzer that receives at least a portion of said clean dialysate flow and separates the dialysate flow into an acidic component flow and a base component flow. A mixing conduit combines the base component flow from the membrane electrolyzer and an output dialysate solution from the urease section of the sorbent component to separate the dialysate solution into an ammonia gas amount and ammonia liquid amount. A gas vent is used to vent the ammonia gas amount, and the sorbent section with a suitable amount of zirconium phosphate (ZrP) removes the ammonia liquid amount from the unclean dialysate flow before flowing the clean dialysate to the reservoir. The system can further include a second mixing conduit upstream of the sorbent section of the sorbent component, the second mixing conduit combining the acidic component flow and the ammonia liquid amount in the dialysate solution to increase the pH of the dialysate solution to about 7.5 prior to returning to the reservoir.

A toilet water measuring and flow control system, including leak and overflow detection and prevention elements. The system has inlet and outlet flow sensors operably connected to inlet and outlet control valves and to water level sensors to measure and control water flow to and from the toilet. Water level sensors held in a toilet tank are connected to the system to control the volume of water fed to the toilet tank and passing through the outlet. The toilet tank may be provided with a movable reservoir to more accurately control the amount of water held in the tank and exiting the tank upon flushing.

An apparatus for brewing ground, brewable foodstuffs having a water reservoir, a boiler, and a flow meter all connected in a common fluid path with a pump that produces a fluid pressure in the common fluid path. A pod holder capable of receiving a pod formed of filter material and containing a mass of ground, brewable foodstuffs having a sieved bottom is located so as to receive the metered volume of water from the common fluid path. In turn, an interchangeable or pivotally mounted fluid conduit is positioned to receive fluid passing through the sieved bottom and to convey the fluid into one or more cups. With this apparatus a small quantity of a brewed liquid, such as coffee, can be produced in a relatively short brewing period with a pleasing taste profile. The fluid pressure may also be adjusted so as to enhance the creation of a crema layer in a coffee drink.

The invention discloses a device for improving water quality of laminated mixed oxygenated water. The device comprises an elevating cylinder, an aerating chamber, a gas storing chamber, an air releasing pipe, a guide plate, a perforated plate, a micro-pore aerator, a powerless automatic switching device and an anchoring pier, wherein the elevating cylinder is vertically arranged in water; the aerating chamber and the gas storing chamber are formed at the middle position of a reservoir; the micro-pore aerator is arranged at a position close to the bottom of the reservoir; a full-layer mixed oxygenation function and an isothermal layer mixed oxygenation function are integrated organically; and a telescopic cylinder for adjusting the height of the device is arranged between the aerating chamber and the micro-pore aerator, so that the stability of the entire device is improved. Through improvements on a multifunctional water pumping aerator, full-layer mixed oxygenation and isothermal layer mixed oxygenation are performed respectively by using the device for improving water quality of laminated mixed oxygenated water according to the water quality improving requirement, so that the problem of water quality pollution in the reservoir can be solved at lower energy consumption, and the aim of organically unifying two functions, the water quality improving benefit and the economic benefit is fulfilled.

A decorative display apparatus comprising a flameless candle with an integrated fountain is disclosed. The flameless candle with integrated fountain is designed to be a stand-alone device. The flameless candle with integrated fountain includes a translucent candle body containing a water reservoir to which an optional scent may be added, a power source which may be a battery, USB or DC supply from an AC converter, a pump and an integrated water and light diffuser. The flameless candle with integrated fountain may be operated in either candle-only mode or candle and fountain mode. The device may also be operated on a timer.

A reservoir configured to retain a volume of liquid for use in an apparatus for humidifying a flow of pressurised air comprises a base portion and a lid portion. The reservoir may be configured to improve its level of thermal contact to the heater plate using the flow of pressurised air. The reservoir may be configured to improve thermal contact between the reservoir and the heater plate by pre-compression upon engagement of the reservoir with the humidifier. The reservoir may comprise a removable intermediate portion, which may include the inlet tube and / or the outlet tube, for improved access for cleaning. The reservoir may also be configured to prevent overfilling. Overfill prevention features in the reservoir may include defined flow egress paths and / or formation of air locks.

The invention discloses a seed coating agent specially used for direct seeding rice, which is characterized in that the seed coating agent mainly contains the following ingredients by weight: 2 to 8 percent of super absorbent resin, 1 to 5 percent of oxygenates, 0.1 to 0.5 percent of sparrow and rat destruction agent , 0.5 to 2 percent of bactericide, 0.5 to 2 percent of pesticide, 0.02 to 0.2 percent of plant growth regulator, 3 to 10 percent of trace element fertilizer and the margin is special type mineral clay. The powder raw materials are crushed to more then 100 meshes and are mixed evenly, the mixture is coated on the surfaces of rice seeds by a seed-coating method for direct sowing, thus clay sacculus integrating 'a small water reservoir, a small oxygen reservoir, a small drug storage and a small fertilizer storage' are formed around the rice seeds and at the roots of seedlings; the seed coating agent has the effects of preserving and providing water, ventilating and providing oxygen, promoting seedling emergency, preventing diseases and killing pests, preventing mice and destructing sparrows, strengthening seedlings and roots and increasing production. The seed coating agent is also characterized by low dosage, low cost, simple and convenient operation, and the like, thereby being applicable to coating rice seeds which are directly sowed both on flooded paddy fields and dry paddy fields.

The present invention relates to a mineral filtering apparatus in which the raw water is passed through a plurality of filtering processes, such as automatically filtrating without pressure, multiply filtering, ions exchange, sterilization, deodorizing, and releasing mineral substance. The filtering apparatus generally comprises a cover, an inlet water box, a first filtering unit, a filtering box, a second filtering unit, a storing reservoir, a mineral substance barrel that is disposed within the reservoir, an outlet filtering core that is disposed within the reservoir, a spout, a bottom bracket, and a water pan. The storing reservoir is provided with a mineral stone barrel with which the water soluble mineral substance is released. When the raw water flows from top to bottom, it can be treated with filtrating, deodorizing, ions exchange, sterilizing, magnetizing processes such that the treated water is clean and suitable for direct drinking. The treated water contains plentiful mineral substances that are nutritious to human beings.

Methods and related systems are described relating to monitoring particulates downhole at in-situ conditions. Solid particles being carried in the fluid as the fluid is produced from the reservoir formation are monitored. The downhole solid particle monitoring can include measuring the quantity (e.g., volume fraction, weight fraction, or the like) of solid particles, measuring the distribution of sizes of the solid particles, and / or measuring the shape of the particles. The solid particles can be monitored using one or more of sensors such as optical spectrometers, acoustic sensors, video cameras, and erosion probes. A sanding prediction is generated based at least in part on the monitoring of the solid particles, and the sanding prediction is then used to design a completion, lift system, and surface facilities for the wellbore and / or select operating conditions so as to control sanding during production.

A condensate pump for an HVAC system includes a reservoir for collecting condensate water, a pump motor connected to an impeller pump for pumping the condensate water out of the reservoir, and a floatless pump control module. The floatless pump's microcontroller detects the water level in the reservoir and, based on the water level in the reservoir, controls the operation of the pump motor, and if necessary, sounds an alarm and shuts down the HVAC system. The floatless pump microcontroller may employ an ultrasonic transducer or capacitance sensors to detect the level of condensate water in the reservoir. The microcontroller implements a variable water lift feature to pump the water using the lowest possible speed for the pump. The microcontroller implements a self-cleaning feature to pump stagnant water out of the reservoir and to pulse water in the drain line and the agitation of the water in the reservoir. The microcontroller implements an anti-clog feature to clear a clogged drain line when an overflow condition is detected.

The present invention discloses a method for performing a stochastic analysis of one or more hydrocarbon reservoir exploitation strategies taking into consideration one or more uncertain parameters. The method optimizes an objective function that considers the gain in value of a reservoir management goal attributable to these exploitation strategies. The methodology may be used to decide whether or not to implement a strategy. Alternatively, it may be used to decide which competing strategy will yield the maximum benefit. In another embodiment of the present invention, the value of information obtained from the installation of additional sensors or new measurements is also considered.

A humidifier for treating humidified air with germicidal light is provided. The humidifier includes a water reservoir, an atomizer to atomize a supply of water, and an ultraviolet light source to expose the atomized water to germicidal light. The ultraviolet light source extends vertically within a cylindrical channel to irradiate the atomized water dissipating upwardly from the atomizer. The water reservoir can include a carbon filter and a hardness-removing module for removing containments and metal oxides from the water supply. A control panel indicates the remaining useful life of the ultraviolet light source, the carbon filter and the hardness-removing module based on historical humidifier usage and water quality levels.

The self-watering assembly is used in combination with a conventional planter having flow hole apertures formed within a base thereof. The assembly includes a set of water-permeable flow hole inserts each including a portion of capillary material such as spandex. The flow hole inserts are inserted into a flow hole of the planter for direct contact with soil positioned therein. The flow hole inserts are sized and shaped to securely fit within the flow hole preventing soil from falling out of the flow hole and preventing roots from growing through the flow hole. Additional capillary material, also formed of spandex, couples an interior of a water reservoir to the capillary material of the water-permeable inserts. By using spandex as the capillary material, sufficient capillary flow may be achieved to properly water even medium to large sized plants. By employing water-permeable inserts for insertion into the planter wherein the inserts have capillary material mounted therein, water can be more effectively drawn into the soil of the planter as compared to many self watering planters wherein the planter merely rests on capillary material. Also, upon removal of the planter from the water reservoir, the inserts typically remain mounted within the flow holes of the planter such that soil from the planter is prevented from falling out of the planter via the flow holes. Entirely conventional planters may be employed thereby reducing overall costs which permit the customer a wide choice of planter shapes and sizes.

A personal, portable heating and cooling system for an individual includes a thin, flexible pad and a control unit in fluid communication with the pad for regulating the temperature of a heat transfer fluid flowing between the pad and the control unit. The pad has an internal chamber for holding the heat transfer fluid. The chamber is partitioned to form therein a passageway that directs the heat transfer fluid to flow there through along a circuitous path. The control unit has a housing enclosing a reservoir for holding the heat transfer fluid, a pump for pumping the heat transfer fluid between the reservoir and the internal chamber of the pad, and a heating and cooling apparatus for regulating the temperature of a heat transfer fluid flowing between the reservoir and the chamber. The control unit includes an electronic control circuit having a user interface that enables a user increase and decrease the temperature of the fluid. An alternate embodiment enables the user to select a temperature of the fluid and still another embodiment where the temperature varies over time in accordance with an individualized custom temperature profile.

The invention discloses a cascade reservoir combined flood scheduling optimization method coupled with flood control and power generation, which can coordinate flood control and power generation goals in flood scheduling, and adopt corresponding models for different standard floods, timely power generation pre-discharging and closing gates and staggered peaks, reducing flood seasons It is useless to abandon water to maximize the benefits of cascade reservoir flood control and power generation. The technical solution is: judge the level of the flood according to the real-time hydrometeorological information and flood forecast results. When the average inflow flow during the flood period is greater than the full flow of the power station, it will be judged as a major flood, otherwise it will be judged as a small flood; according to the different levels Different models are used to optimize the scheduling of different control objectives; under each different flow, constraint settings and control objectives, a number of different flood control schemes are obtained, which constitute a set of flood control schemes corresponding to a flood, as the basis for decision-making, if In the flood control scheme set, it is necessary to modify the inflow flow, so the simulated flood control calculation under various inflow conditions is repeated.

The invention relates to a method for united operation design and optimized dispatching of a Yellow River upstream cascade hydroelectric station, which comprising the following steps of: measuring daily average reservoir level and downstream daily average tail-water level of each power station through a water level sensor; measuring discharged flow of each power station through an ultrasonic flowmeter; establishing a cascade reservoir united optimized dispatching model through a cascade hydroelectric station united optimized dispatching model module; computing and analyzing a cascade hydroelectric station united optimized dispatching path through a dispatching path computation and analysis module; carrying out unified operation design on a cascade hydroelectric station group system through a cascade hydroelectric station group system unified operation design module; and carrying out unified dispatching on the cascade hydroelectric station group system through a cascade hydroelectric station group system unified dispatching module. The invention is simple, clear and practical with high pertinence, can enable average annual energy output of a Yellow River upstream cascade power station group after the power stations in Laxiwa and Jishi valley are put into operation to be increased by about 470 million degrees, and the water supply guarantee rate of Lanzhou cross section to reach95 percent, and has remarkable technical economic benefit.

A faucet device includes a shank coupled to a water reservoir and having two outlets, a solenoid valve is coupled to one of the outlets of the shank, a faucet housing includes a chamber and includes an outlet spout. A valve casing is disposed in the faucet housing, and includes two passages coupled to the other outlet of the shank and an exit of the solenoid valve. An actuating device may selectively communicate either passage of the valve casing with the spout of the faucet housing, to allow the water from the shank and the solenoid valve to selectively flow out through the spout of the faucet housing, and to allow the faucet device to be selectively operated automatically or manually by users.

An improved method and apparatus for indirect evaporative cooling of a fluid stream to substantially its dew point temperature. Plate heat exchanger has perforations 11 and channels 3, 4 and 5 for gas or a low temperature for liquids on a dry side and wet side. Fluid streams 1 flow across the dry side 9, transferring heat to the plate. Gas stream 2 flows across the dry side and through perforations to channels 5 on wet side 10, which it then cools by evaporative cooling as well as conductive and radiative transfer of heat from plate. A wicking material provides wetting of wet side. In other embodiments, a desiccant wheel may be used to dehumidify the gas, air streams may be recirculated, feeder wicks 13 and a pump may be used to bring water from a water reservoir, and fans may be used to either force or induce a draft. The wicking material may be cellulose, organic fibers, organic based fibers, polyester, polypropylene, carbon-based fibers, silicon based fibers, fiberglass, or combinations of them. The device may be operated in winter months to scavenge heat from exhaust gases of a space and thus pre-heat fresh air, while simultaneously humidifying the fresh air.