1199 results about "Self priming" patented technology

An impeller assembly for centrifugal pumps that enables self-priming in a relatively short time period includes an impeller and at least one winglet (e.g., six winglets with a trapezium cross-sectional shape). The impeller includes an impeller body with an eye opening therein. The eye opening is configured for the passage of a fluid (e.g., water) therethrough when the impeller assembly is in use. The impeller body also includes at least one vane, with a leading end, disposed about the eye opening. The at least one winglet is positioned to protrude into the eye opening of the impeller body and may, for example, be coupled to the leading end of the vane.

A system, a method and administration lines are provided for self-priming of a solution delivery system. The administration lines are arranged such that resultant forces acting on the lines create different forces applied on each lumen resulting in solution flowing in one of the lumen undergoing a higher isostatic pressure. The lumens forming the administration line may be formed from concentric tubings or formed from separate tubings extending varied lengths into the solution container. As a result, automatic priming of the administration line and the solution delivery system is provided.

An exemplary device and method for microfluidic transport is disclosed as providing inter alia a passive check valve (100), a fluid inlet channel (210), a fluid outlet channel (220) and a pumping cavity (240). The fluid inlet channel (210) is generally configured to flow a fluid through the check valve (100). The check valve (100) generally provides substantially passive means for preventing or otherwise decreasing the incidence of purged outlet fluid re-entering either the pumping cavity (240) or the fluid inlet channel (210). Accordingly, the reduction of backflow generally tends to enhance overall pumping performance and efficiency. Disclosed features and specifications may be variously controlled, adapted or otherwise optionally modified to improve micropump operation in any microfluidic application. Exemplary embodiments of the present invention representatively provide for substantially self-priming micropumps that may be readily integrated with, for example, existing portable ceramic technologies for the improvement of device package form factors, weights and other manufacturing and/or device performance metrics.

The invention discloses hydraulic automatic water-saving vehicle cleaning equipment, which relates to vehicle cleaning equipment and comprises a water saving device, a hydraulic device and an inductive control device. The water saving device consists of a middle water tank, a clean water tank, an accumulated water tank, a self-priming pump, a hydraulic tank, a nanometer filter screen, a hydraulicvalve, an automatic interchange valve, an automatic water pumping valve and an internal automatic blow-off valve. The hydraulic device consists of a rough cleaning workshop, an agent spraying workshop, a spray-washing workshop, a throw-drying workshop, a wax spraying workshop, a polishing workshop, a hydraulic nozzle, a self-inductive nozzle, throw-drying equipment and polishing equipment, and the inductive control device comprises an automatic control device and a remote control device. A vehicle is firstly roughly cleaned in the rough cleaning workshop, cleaning agent is sprayed on the vehicle entering the agent spraying workshop, then the vehicle enters the spray-cleaning workshop to be thoroughly cleaned in a spraying manner, is in a throw-drying process in the throw-drying workshop and enters the wax spraying workshop, wax agent is sprayed on the vehicle, then the vehicle is polished in the polishing workshop, accordingly, cleaning and maintenance of the vehicle are completed, and comprehensive water conservation and efficacy enhancement are synchronously realized. The hydraulic automatic water-saving vehicle cleaning equipment has the advantages of exquisite structure, multiple functions, wide applicability, high grade and efficiency, energy conservation, environmental protection, convenience in carrying and utilization, small occupied area, low manufacturing cost, high comprehensive cost performance and the like.

The present invention describes a composition of thermosetting resins, in particular epoxy resins, combined with modified polysiloxane networks to form a continuos interpenetrated network characterized by the presence of metals such as boron, molybdenum and tungsten, linked to Si via an oxygen atom. These compositions, can be used to make adhesives, composites and coatings that exhibit excellent hardness, chemical resistance, fast curing, damp tolerance and are self priming with slow release of a corrosion inhibitor or of functional additives. The material of the present invention can be used in particular as a coating, in the marine field, for yachts and for large metal vessels, such as oil tankers and more in particular for cargo or ballast tanks and on hulls. It can be used for the maintenance and protection of trains, automotive vehicles and in electric applications such as for the production of dielectric shields and in those fields where high performance is needed.

The invention relates to a water tank with an automatic cleaning function, which comprises a water tank with a panel and at least one tank body, wherein the bottom of the tank body is provided with at least one ultrasonic oscillator; the ultrasonic oscillator is connected with an ultrasonic generator installed under the water tank; a boosting self-priming water pump is also installed under the water tank; the side wall of the tank body is provided with at least one water inlet pipe; two to six water inlet pipes are connected with the output end of the boosting self-priming water pump, and the input end of the boosting self-priming water pump is communicated with the bottom of the tank body by a water outlet pipe; and a control panel with a touch screen is installed on a water tank panel, and the output end of the control panel is connected with an ultrasonic generator and the boosting self-priming water pump. The invention can realize automatic cleaning of vegetables, fruits or tableware by combining ultrasonic cleaning and surf cleaning and drain water by a draining basket which can be lifted and has the advantages of high cleaning efficiency, good cleaning effect, time saving and labor saving and favorable market prospect.

The invention discloses a comprehensive all-in-one machine for household appliance cleaning. The comprehensive all-in-one machine for household appliance cleaning comprises a machine body, wherein the machine body comprises a machine body part on the lower portion and a box cover on the upper portion, the machine body part is hinged to the box cover through a first hinge on the rear side, the machine body part and the front side of the box cover are locked through a first clamping lock, a machine body cavity is formed in the lower portion of the machine body part, a water dispenser cleaning device, a water dispenser sterilization device, an exhaust hood cleaning device, a high-pressure steam device and a water tank are arranged in the machine body cavity, the high-pressure steam device comprises a self-priming pump, a heating liner and a spray gun which are connected in sequence through a pipeline, and a water dispenser cleaning mechanism and a high-pressure steam mechanism are connected with the water tank. The comprehensive all-in-one machine for household appliance cleaning is compact in structure, comprehensive in function, and convenient to carry and transport, by replacing different auxiliary tools, cleaning and sterilization of a water dispenser can be achieved, multiple functions such as exhaust hood cleaning can be achieved, cleaning, sterilization and disinfection of household appliances such as refrigerators, liners of microwave ovens, and evaporators of air conditioners can be achieved, the machine can also be used for cleaning automobiles, and the water-saving effect and energy-saving effect are remarkable.

An electronic metering pump system has a fluid flow detector for monitoring the output of the electronic metering pump to detect loss of prime. The fluid flow detector, upon detecting loss of fluid flow, initiates an electronic signal to a downstream solenoid valve which closes the output conduit of the electronic metering pump and facilitates the repriming of the pump and return of output fluid flow. The electronic signal may also be utilized to initiate an warning or alarm to an operator, either directly or by data network, that the system requires attention.

A bubble free, self-priming IV set for use in the administration of liquids that includes a drip chamber comprising a chamber inlet and a chamber outlet, a bubble isolation device disposed within the drip chamber that prevents air bubbles from exiting the chamber outlet, a tube having an inlet end coupled to the chamber outlet of the drip chamber and an outlet end, and an end plug that includes an air vent. The end plug may be coupled to the outlet end of the tube and is a flow restrictor so that when a liquid is moving through the tube, the velocity of the liquid flow is controlled such that the front of the liquid does not trap bubbles in the tube.

The water treater can lower obviously the comprehensive pollution index of purified water and make the quality of purified water not affected by the quality of raw waste water. It needs no backflushing and has long service life of membrane and less floor area. Using it high-turbidity water is treated through combined flocculation, air floating and membrane separation. The treater has mixer and treating water tank connected via pump, and the water tank has aerator connected with a blower at the bottom hydrophilic hollow fiber microporous membrane assembly with water collecting pipe connected to a self priming pump to discharge purified water in the upper part, baffles in the peripheral and sludge scraper installed in the top. The present invention is used in treating water with suspended matter more than 50 mg/L.

The invention discloses a reactor and a method used for preparing aluminum hydroxide. The reactor employs a self-priming stirrer assembly which is mainly composed of a rotor and a stator. The rotor employs a closed backward-curved flow-channel impeller. The rotor is fixed on a stirring shaft. Deflector vanes are arranged in the stator. Compared with prior arts, when the reactor provided by the invention is used for carrying out a carbonization reaction, because gas is absorbed automatically during a stirring process, no gas compressor is needed, such that power and investment are saved. With the self-priming stirring of the rotor and the guiding function of the stator, gas bubbles produced after gas distribution have small sizes, and gas utilization rate is increased by 1 time or higher. Prepared aluminum hydroxide dry gum grains have uniform sizes and centralized pore size distribution. With the rotation of the rotor, the shearing action upon fluid is small, such that the sizes of the prepared aluminum hydroxide dry gum grains are not affected by the shearing action.

The invention relates to a domestic reclaimed water system, which comprises the following steps: the sewage of a hand basin, a washing machine and a bathtub enters into a wastewater filter box through a pipeline; then the filtered water is pumped into a sewage storage tank with a V-shaped bottom or a purified water storage tank with the V-shaped bottom by a self-priming water pump through the pipeline; an ozone device sends ozone into the sewage storage tank with the V-shaped bottom or the purified water storage tank with the V-shaped bottom through the pipeline for disinfection, sterilization, and odor removal; the recycled water treated in the sewage storage tank with the V-shaped bottom is sent to a water tank of a toilet bowl and a pier water pond through the pipeline respectively; the water treated in the purified water storage tank with the V-shaped bottom is sent to the washing machine for washing for the first time through the pipeline respectively; the wastewater filter box, the sewage storage tank with the V-shaped bottom and the purified water storage tank with the V-shaped bottom are provided with a water level switch respectively; and an automatic control device controls each water level switch and controls the switching actions of each part of the self-priming water pump and the ozone device so as to achieve normal water storage, processing and recycling of the entire domestic reclaimed water system. The domestic reclaimed water system is controlled full-automatically and is convenient to use, thus the domestic reclaimed water system is applicable to bathrooms of families, enterprises, public places and the like.

A self-priming centrifugal pump has a recirculation tube connected between a hollow cylinder having a first set of impellers received therein and a first tube having liquid received therein and having a second set of impellers received in one end thereof, so that the suction lift of liquid is enhanced and the liquid flow subjected only to the gravity will also be expedited by the extra centrifugal effect created by the second impeller. Furthermore, there are provided with a plurality of through holes communicating with the first tube. Therefore, the amount of liquid flow back to the first tube is increased.

This invention relates to a wastewater treatment apparatus, especially UCT-broken line flow membrane bioreactor for reclaimed water reuse. The apparatus comprises: a float valve, a punched aeration tank, a liquid flow meter, a gas flow meter, a vacuum pressure gauge, a hollow fiber membrane module, a diving reflux pump, a single-stage self-priming pump, an electronic stirrer, an aeration pump, an ORP potential tester, am oxygen dissolution tester, a water storage tank, and an adjusting pool. The membrane bioreactor is divided into an anaerobic zone, an anoxic zone and an aerobic zone at a volume ratio of 1:1:4. Two partition boards are set in the aerobic zone. The ORP probe can monitor the redox potential of the anaerobic zone and the anoxic zone, and broken line flow mode of water flow in oxygen dissolution reactor in the aerobic zone. A dump pump is used to pump water into the water storage tank via the membrane module.

The invention discloses a fast self-priming jet-type centrifugal pump. A bowl-type valve, a backflow pipe, a jet nozzle and a pump inlet are arranged on a backflow hole on a sixth section of the pumpbody to form liquid self-circulation system. The working principle centrifugal pump is that two third liquid is stored in the pump body, the pressure generated by high-speed rotation of an impeller issmall, the valve on the backflow hole of the pump body is open, and partial liquid flows into the jet nozzle. The outlet of the nozzle is designed into the structure which contracts first and then spreads, the nozzle has large area of jet which is in a shape of loudspeaker, has strong gas-liquid entrainment of pump inlet pipeline, and drains off the air and yields water of pump inlet pipeline. The pump body achieves design value at this time, the valve on the backflow hole closes automatically, and the nozzle stops working, so that efficiency of the pump is improved by more than 5% compared with that of traditional self-priming pumps.

One-part self-etching, self-priming dental adhesive composition having a pH of at most 2, which comprises (a) a polymerizable acidic phosphoric acid ester monomer (b) one or more polymerizable acidic monomers (c) a polymerizable N-substituted alkylacrylic or acrylic acid amide monomer; (d) optionally an organic and/or inorganic acid; (e) an organic water soluble solvent and/or water; and (f) polymerization initiator, inhibitor and stabilizer.

A liquid dispenser for dispensing a liquid from a liquid storage container operably associated with the liquid dispenser. Preferably, the liquid dispenser includes a main housing having a dispensing location at which liquid from a liquid storage container is dispensed and a storage location for storing a liquid storage container. Preferably, the liquid dispenser includes a removable liquid transport assembly removable from the main housing having a substantially rigid liquid manifold, a valve assembly, a riser tube, a reservoir, a reservoir dip tube, a pump head, a pinch tube and a dispensing nozzle that are removable as a single unit from the main housing. Preferably, the liquid dispenser includes a single self-priming pump. Preferably, the valve assembly includes a non-return valve and a pressure relief valve that act in concert to control the flow of liquid between the liquid storage container and the reservoir.

The invention relates to a water-treatment device. The water-treatment device comprises a grating channel, a grit chamber, a biological rotating disc and a depth treatment system, wherein the grating channel, the grit chamber, the biological rotating disc and the depth treatment system are successively connected in series. The water-treatment device is characterized in that a self-priming pump is arranged outside the grit chamber, a water inlet of the self-priming pump is connected with a flexible pipe, and a water inlet of the flexible pipe is provided with a filtering nozzle; the filtering nozzle is connected with a floating ball, an outlet of the self-priming pump is connected with an inlet of a separation box, and an outlet of the separation box is connected with a water channel of the biological rotating disc through a water carrying pipeline; the biological rotating disc is positioned on the upper part of the water channel, and part of a biological disc piece is soaked in the lower part of a liquid surface of the water channel; a reflux pump is arranged outside the water channel, an inlet of the reflux pump is positioned in the middle of the water channel, and an outlet of the reflux pump is positioned in the bottom of the water channel; an outlet of the water channel is connected with an inlet of the depth treatment system. Compared with the prior art, the water-treatment device provided by the invention has the advantages that the peculiar smell is not generated, mosquitos and flies are not bred, the sludge output is small, the biological disc piece adopts a concave-convex plate, and the biomass is high; the whole denitrification effect is excellent; the total energy consumption is low; a condition that the water quality effluent can steadily achieve a standard is effectively guaranteed; the water-treatment device has the advantages that the structure is compact, and the operation and management are simple and convenient.

A self priming regenerative pump comprising an impeller with a plurality of vanes formed on its periphery, casings 1a and 1b which house said impeller in a rotatable manner and a pressurizing passage consisting of a gap between said casing and the outer periphery of said impeller, further comprising: a small diameter part formed at a position communicating with pressurizing passage of a discharge flow passage, in particular, formed smaller than the diameter of a discharge port; and; a passage for communicating between discharge port side of smaller diameter part of discharge flow passage and pressurizing passage in order to allow the fluid in discharge flow passage to return to pressurizing passage, wherein said position communicating with pressurizing passage is outwardly offset from the center of the width of impeller.