59results about How to "Good fluid performance" patented technology

A fluid dispenser having a dispensing valve movable between open and closed positions for controlling the flow of the fluid from the fluid dispenser. A solenoid is operatively connected to the dispensing valve and is capable of moving the dispensing valve between the open and closed positions. The fluid dispenser further includes a power supply having a voltage and a driver circuit electrically connected to the solenoid and the power supply. The driver circuit provides an output signal to the solenoid having a time variable component, for example, a peak current duration, determined as a function of the voltage of the power supply. Thus, the driver circuit automatically adjusts to, and can be used with, power supplies of different voltages. The invention further includes a method by which the driver circuit provides the output signal as a function of the power supply voltage.

The invention relates to a preparation method of an all solid waste and upper flow regime paste-like filling material. Ferrosilicoaluminum-based solid wastes and calcium sulfate-based solid wastes, which are used as raw materials, are subjected to raw grinding, homogenization, firing and clinker grinding to produce a matrix material, and the matrix material is blended with filling aggregates, a fine-grained material, a regulator and wastewater to prepare the paste-like filling material. The method achieves the preparation of the paste-like filling material by recycling industrial solid wastes.The material is prepared from a liquid component A and a liquid component B, wherein the component A is composed of the matrix material and wastewater, and is a slurry formed by stirring and mixing,and the component B is composed of the filling aggregates, the fine-grained material, the regulator and the wastewater, and is a slurry formed by stirring and mixing. The paste-like filling material prepared from multiple solid wastes has excellent properties upper flow regime, early strength, fast hardness and low bleeding rate. The preparation method has the advantages of reasonable utilizationof the industrial wastes, great consumption of the industrial solid wastes, reduction of environmental impact, construction of the environment-friendly society, and easiness in preparation.

In one of its aspects, the present invention relates to a fluid treatment system comprising: an inlet; an outlet; a fluid treatment zone disposed between the inlet and the outlet. The fluid treatment zone: (i) comprises a first wall surface and a second wall surface opposed to the first wall surface, and (ii) having disposed therein at least one array of rows of radiation source assemblies. Each radiation source assembly has a longitudinal axis transverse to a direction of fluid flow through the fluid treatment zone and each of the first wall surface and the second wall surface comprises a first fluid deflector element and a second fluid deflector element. The first fluid deflector element projecting into the fluid treatment zone to a greater extent than the second fluid deflector element.

A method of inserting into a non-polar fluid flow a quantity of a solid medium having porosity, preferably a crosslinked polystyrene resin, which absorbs or adsorbs oil oxidation by-products or other lubricant degradation products or varnish precursors dramatically to extend the life and performance of the lubricating oil.

The invention discloses a geothermal exploitation system and a construction method thereof. The geothermal exploitation system comprises a mineshaft, an injecting pipeline and a collecting pipeline, wherein the injecting pipeline and the collecting pipeline are arranged along the inner wall of the mineshaft. The injecting pipeline communicates with the collecting pipeline through drilling holes in hot dry rock. The injecting pipeline communicates with an opening of one end of one of the drilling holes through an injecting roadway, and the collecting pipeline communicates with an opening of the other end of one of the drilling holes through a collecting roadway. The injecting pipeline and the collecting pipeline both are connected with a power generating working platform arranged on the ground, and accordingly, a closed cycle is formed. By means of the construction method of the geothermal exploitation system, geothermal energy can be exploited largely; numerous defects in an existing exploitation method are avoided; meanwhile, an existing mine is utilized or combined with deep mining to conduct geothermal exploitation so that the engineering cost can be reduced, unnecessary repeated building can be reduced, and an ore deposit without economic exploitation value due to the burial depth can be exploited. The method can be carried out in various old mines lacking of resources, so that the old mines are subjected to secondary production to break away from the dilemma that the resources are scarce.

The invention discloses a PERC solar photovoltaic cell capable of improving photoelectric conversion efficiency. The PERC solar photovoltaic cell comprises a silicon substrate slice, a positive electrode and a back electrode, wherein the positive electrode and the back electrode are directly sintered on the light-receiving surface and the back surface of the silicon substrate slice respectively. The light-receiving surface of the silicon substrate slice is provided with a silicon dioxide layer, a first passivation layer, an antireflection layer, a conductive thin film and transparent glass in sequence. The back surface of the silicon substrate slice is sequentially provided with a second passivation layer and an aluminum back surface field. A metal nano-particle layer is arranged between the conductive thin film and the transparent glass. The solar photovoltaic cell is simple in structure; on one hand, light absorption is improved; a light-trapping surface structure is adopted and the antireflection layer is plated, and on the other hand, recombination rate of the surface of the cell is reduced; passivation is carried out by adopting the passivation layer, and the back surface passivation layer better reduces the recombination rate of the back surface of the silicon slice, so that the minority carrier lifetime of the silicon slice is allowed to be maximum; and meanwhile, opening proportion of the back surface passivation layer is optimized, and photoelectric conversion efficiency of the solar photovoltaic cell is greatly improved.

The invention discloses a loose blasting type hot ore development system and a construction method thereof. The hot ore development system comprises a ground lifting system, a large-diameter verticalshaft, an underground high-temperature high-pressure heat exchange water tank, a heat exchange flow guide channel, a water-rock geothermal flow storage layer, a movable sealing device and the like, wherein the water-rock geothermal flow storage layer is formed by access blasting tunnels and a main tunnel. The hot ore development system is provided with an injection pipeline and a collecting pipeline along the inner wall of the large-diameter vertical shaft, the injection pipeline communicates with the collecting pipeline through the heat exchange flow guide channel of the underground high-temperature high-pressure heat exchange water tank in dry hot rock, the circulating main tunnel is arranged around the underground high-temperature high-pressure heat exchange water tank, and the plurality of rows of access blasting tunnels are horizontally arranged along the main tunnel, a hot ore blasting fracture flow storage layer is formed through caving mining method loose blasting, moreover, the movable sealing device is arranged above the vertical shaft of a blasting layer, through a U-shaped pipe principle, through the injection pipeline and the collecting pipeline, cold water and hot water in the high-temperature high-pressure water tank exchange heat energy, the water with the heat energy is conveyed to the ground to be converted into electric energy for people to use, and dual heat exchange is realized.

An accumulator comprises a housing connected to a hydraulic system, an elastomeric bladder separating a gas compartment from a fluid compartment, and an anti-extrusion device. A method for operating an accumulator comprises connecting the accumulator to a hydraulic system, injecting an inert gas into a gas compartment to a precharge pressure, moving an anti-extrusion device to prevent a bladder from extruding into the hydraulic system, running the accumulator and the hydraulic system downhole, moving the anti-extrusion device to allow fluid communication between the hydraulic system and a fluid compartment, generating pressure fluctuations within the hydraulic system, and expanding or contracting the bladder in response to the pressure fluctuations without moving the anti-extrusion device. A method of improving fluid hammer performance comprises connecting the fluid hammer to an accumulator that produces a greater delivered horsepower from the fluid hammer as compared to a baseline horsepower when operating without the accumulator.

The invention discloses a preparation method of a cage shaped active carbon for flue gas desulfurization, and belongs to the field of active carbon synthesis. The preparation method comprises the following steps: taking cheap and easily-available loofah sponges as the raw material, soaking loofah sponges in a sodium hydroxide solution, then bleaching loofah sponges by calcium hypochlorite, carrying out fermentation, drying fermented loofah sponges in a quick-cooling and quick-heating mode by using a refrigerator and a high temperature baking oven, subjecting loofah sponge fibers to a de-crystallization treatment under the assistance of ball milling so as to improve the reaction activity of loofah sponge fibers, making loofah sponge fibers into pulp taken as the raw material, taking cyclohexane and trichloromethane as the mixed oil phase, tween 60 as the emulsifier, and ammonium persulfate as the initiator, mixing the raw material, mixed oil phase, emulsifier, and initiator with a water phase, carrying out reactions under a heating condition to generate cage shaped fibers, and finally carrying out high temperature carbonization to obtain the cage shaped active carbon for flue gas desulfurization. The obtained caged shaped active carbon is a novel active carbon material, there are many holes on the surface of the active carbon, the cavity in the active carbon is large, the fluid mechanic performance is excellent, and the provided active carbon has a wide application prospect in flue gas desulfurization therefore.

The invention provides a purple sweet potato red bean sauce and a preparation method thereof. The purple sweet potato red bean sauce is prepared from the following components in parts by weight: 100 parts of purple sweet potato paste, 5-10 parts of red bean paste, 16-24 parts of white granulated sugar, 0.09-0.12 part of citric acid, 0.11-0.14 part of calcium chloride, 0.06-0.12 part of pectin, 0.1-0.4 part of tea polyphenols, 5-8 parts of galactooligosaccharide and 10-15 parts of water. Compared with the prior art, the purple sweet potato red bean sauce disclosed by the invention has the advantages that purple sweet potatoes are used as main raw materials, and red beans are used as auxiliary materials, so that the produced composite sauce not only is rich in the content of nutrients of vitamins, minerals and the like, but also is rich in active components of soluble dietary fibers, anthocyanin and the like, has good effects of resisting oxidation, improving cytotrophy, strengthening constitutions, improving immunity of bodies and preventing diseases, and has good water preserving capability, and good product fluidity. The purple sweet potato red bean sauce is low in saccharose content, rich in fragrance, reasonable in nutrition, prominent in health-care functions and convenient to carry and eat.

In a heat storage tank, a discharge port of an introduction passage is covered by a cup-shaped collision member constructed by a shield portion and a guide cover. In addition, a mixture protection plate having plural through holes is disposed in a tank body between the collision member and an inner surface of the tank body. Therefore, a high-speed water stream, upwardly injected from the discharge port, collides with the shield portion, and turns its flow direction by an approximately right angle. Thereafter, the water stream is guided by the guide cover to a lower side of the mixture protection plate. Accordingly, it can prevent water stored in the tank body from being mixed even when the injection water stream has a high speed.

A gate with double arch structure is prepared as connecting two ends of positive arch by chord; connecting positive arch, negative arch and chord by web member vertical to chord; applying horizontal connection rod to connect adjacent fish belly double-arch components and directly welding steel water-blocking plate at external of chord on each fish belly double-arch component.

The invention concerns a reverse osmosis system (1) with at least one membrane unit (2) comprising an inlet (3), a permeate outlet (4) and a concentrate outlet (5), a high-pressure pump (8) that is connected to the inlet (3), a pressure exchanger (11) comprising at least one high-pressure concentrate connection (HPC), and a booster pump. It is endeavoured to achieve the lowest possible energy consumption. For this purpose, the booster pump is made as a displacement pump (16) that is arranged between the concentrate outlet (5) and the high-pressure concentrate connection (HPC) of the pressure exchanger (11).

The present invention provides an epoxy resin composition which comprises epoxy resin, an inorganic filling material, and a hardening agent. The epoxy resin is epoxy mixed resin having low viscosity epoxy resin of which viscosity is 500-4,000 cps at 25 DEG C and multifunctional epoxy resin more than 3 functions. An average size of the inorganic filling material is 0.1-5 [mu]m.

A method for producing a plurality of measurement regions on a chip, and a chip having a plurality of measurement regions which is obtainable by the method.

The invention provides a cooling fan with an outer rotor carbon fiber centrifugal impeller. The cooling fan comprises the carbon fiber centrifugal impeller, a glass fiber air inlet, an outer rotor motor, an aluminum alloy casing and the like; an outer rotor carbon fiber centrifugal impeller and a lightweight cooling fan for locomotive air conditioners are included; the carbon fiber centrifugal impeller and the outer rotor motor are connected by bolts to form the outer rotor carbon fiber centrifugal impeller; a stator of the outer rotor motor is mounted on a rear side plate of an aluminum alloycasing by bolts; and the glass fiber air inlet is mounted between the aluminum alloy casing and the carbon fiber centrifugal impeller, and is mainly used for diversion. When in use, the cooling fan realizes the design of the outer rotor carbon fiber centrifugal impeller and the glass fiber reinforced plastic air inlet, the outer rotor motor is small in load and high in reliability, and a completelocomotive air conditioner fan is light in weight, high in fluid efficiency, and convenient in installation and maintenance.

The invention provides a reinforcing admixture for premixed high-flow-state pervious concrete and a preparation method of the reinforcing admixture. The reinforcing admixture is prepared from nano silicon dioxide microspheres, glass beads, soluble organic ferric salt, a water-soluble high-molecular polymer and water-based closed polyisocyanate, wherein the nano silicon dioxide beads can play a role in micro-aggregate filling, the compactness of the cementing slurry is improved, and the activity of the nano silicon dioxide beads can improve the interface area of the pervious concrete cementingslurry and aggregate and improve the bonding strength. The vitrified micro-beads can improve the fluidity of the pervious concrete. The soluble organic iron salt utilizes the coordination effect of carboxylic acid groups of organic acid on iron ions, the dissolving stability of iron ions in water is improved, and the phenomenon that iron ions react with hydroxide radicals in an aqueous solution toform flocculent precipitates to cause false coagulation of a pervious concrete mixture is prevented, the iron ions and the hydroxide radicals in the pervious concrete gradually form insoluble amorphous precipitates in the later hydration period, micropores in a cement cured product are blocked, durability is improved, and van alkali is inhibited.

Disclosed is an axial flow fan with a reinforcing rib structure. The axial flow fan comprises blades, wherein each blade is provided with one or more first reinforcing ribs in the longitudinal direction and one or more second reinforcing ribs in the transverse direction, so that a plurality of bosses are formed in each blade, and an airflow guiding area is formed between every two adjacent bosses;the one or more second reinforcing ribs extend out of the one side or the two sides of each first reinforcing rib, and each first reinforcing rib and the corresponding second reinforcing ribs are respectively arc-shaped or spline curves formed by combining multiple sections of lines; and the first reinforcing ribs and the second reinforcing ribs are respectively arranged on the suction surface ofeach blade, the central lines of the first reinforcing ribs and the second reinforcing ribs are respectively arc-shaped or spline curves formed by combining multiple sections of lines, and the bending directions of the central lines of the first reinforcing ribs and the second reinforcing ribs on each blade are consistent with the streamline direction of the surface of each blade. The axial flowfan effectively improves the strength of the blades, reduces the running resistance when the blades run, and further reduces the power consumption of the fan.

The invention discloses a compact ultrathin water pump which comprises a water pump body. The water pump body comprises a top cover, a pump shell and a base assembly. An impeller assembly is arranged in the pump shell, and a stator assembly is arranged on the base assembly. A water inlet connector is arranged on one side of the pump shell, and a water outlet connector is arranged on the other side of the pump shell. A first cavity is formed between the top cover and the pump shell, the first cavity comprises an annular water storage chamber separately arranged on the side face of the pump shell and an annular suction chamber arranged on the pump shell and communicated with the annular water storage chamber, and the water inlet connector is communicated with the annular water storage chamber. A second cavity is formed between the pump shell and the base assembly, an annular water pumping chamber is arranged on the outer side of the second cavity, the impeller assembly is arranged in the middle of the second cavity, the annular suction chamber is communicated with the annular water pumping chamber, and the annular water pumping chamber is communicated with the water outlet connector. The axial size of the water pump is obviously reduced, a water tank is integrated into the design of the water pump, and the compactness of the water pump is improved.

One exemplary embodiment can be a process for stripping. The process can include passing catalyst to a stripping vessel containing a riser, providing a plurality of baffles having a first baffle and a second baffle, and providing one or more packing layers. The stripping vessel and riser may define an annular zone including annular area for stripping of the catalyst, and the first and second baffles collectively overlap in no more than about 50% of the annular area. Often, the first baffle is coupled to an outer circumference of the riser and extends outward, and the second baffle is coupled to an inner circumference of the stripping vessel and extends inward. Typically, the one or more packing layers are within the annular zone.

The invention provides a vector control device, an underwater vector thruster and a remote control unmanned submersible, and aims to solve the problems that an existing underwater vector thruster is high in space size requirement, complex in structure and high in control difficulty, and the reliability of long-term operation of an ROV. The vector control device comprises a sealed cabin for performing vector control on two propellers, and a power supply unit, a control unit and two sets of rotary driving units which are positioned in the sealed cabin, wherein two coaxial holes are formed in two opposite side walls of the sealed cabin, the two sets of rotary driving units are symmetrically arranged at the two ends of the sealed cabin, the output shafts of the two sets of rotary driving units penetrate through the two coaxial holes respectively to drive the two propellers to rotate, the power supply unit supplies power to the control unit and the two sets of rotary driving units, and the control unit controls the rotating angle of the output shaft of the rotary driving unit and the rotating speeds of the two propellers.