109results about How to "Stable flux" patented technology

The invention provides a garbage compression leachate comprehensive waste water treatment device and technological method. The device comprises a grille, a waste water storage tank, an ultrasonic Electro-Fenton reactor, an intermediate water storage tank, an ultrasonic vibration film reactor and a vortex vibration film filtration system, wherein the grille, the waste water storage tank, the ultrasonic Electro-Fenton reactor, the intermediate water storage tank, the ultrasonic vibration film reactor and the vortex vibration film filtration system are sequentially connected. The device further comprises a sludge dewatering drying pool which is connected with a vortex energy-saving heat pump flash evaporator of the vortex vibration film filtration system and provided with a circuit connected with the ultrasonic vibration film reactor. Waste water sequentially flows through the grille, the waste water storage tank, the ultrasonic Electro-Fenton reactor, the intermediate water storage tank, the ultrasonic vibration film reactor and the vortex vibration film filtration system for redox reactions and filtration. The device is high in operability, high in regeneration cycle use rate and low in operation cost.

The invention discloses a membrane bio-reactor (MBR) used for treating preserved szechuan pickle wastewater and reinforcing biological phosphorous and nitrogen removal. An integrated reactor is formed by an A<2>/O process, a biological membrane process and the MBR. The MBR comprises an anaerobic tank, an anoxic tank, an aerobic tank, a feeding system, an aerating system, a drainage system and automatic control equipment, wherein semi-soft biological membrane fillers are put in the anaerobic tank, the anoxic tank and the aerobic tank; a membrane component is put in the aerobic tank, and a membrane separation region is not independently arranged. The reactor has the advantages that anaerobic phosphorus release and phosphorus accumulation in the aerobic tank are carried out via the sludge on the biological fillers in the anaerobic tank, thus increasing the total removal rate of phosphorus in the sewage; organic matters undergo hydrolytic acidification and organic nitrogen is aminated after the preserved szechuan pickle wastewater passes through the anaerobic tank; nitrification liquor in the aerobic tank flows back to the anoxic tank to form denitrification in the anoxic tank. The MBR has a simple structure and high pollutant treatment efficiency, is light in membrane pollution, and can simultaneously treat the pollutants such as organic matters, total nitrogen, total phosphorus, SS and the like of high salinity wastewater.

The invention discloses a phase shift control method of a charging circuit, which comprises a primary side conversion circuit, a secondary side first conversion circuit and a secondary side second conversion circuit. The controller has a phase angle difference phi between the on-off waveform of the power switch in the primary side conversion circuit and the on-off waveform of the power switch in the secondary side first conversion circuit; The controller collects the output current (Io1) and the output voltage (Vo1) of the secondary side first conversion circuit through the secondary side first current collector and the secondary side first voltage collector, comparing and calculating the collected output current and output voltage with the preset output current and output voltage, and adjusting the magnitude and positive and negative of the phase angle difference phi according to the comparison result; The magnetic flux in the transformer can be stabilized when the main circuit outputs light load and no load, and the auxiliary circuit can normally absorb electric energy from the transformer and normally supply power to the outside. At the same time, it can conveniently control theconversion direction and the conversion quantity of the electric quantity in each port.

The invention discloses a method for preparing geniposide in eucommia leaf. The method comprises the following steps of crushing eucommia leaf, carrying out cellulase-assistant middle temperature-water extraction, carrying out routine filtration, carrying out ultrafilter membrane impurity-removal, carrying out nanofiltration condensation, carrying out macroporous resin-based separation purification, carrying out condensation and carrying out drying to obtain geniposide powder. The method utilizes cellulase-assistant middle temperature-water extraction of geniposide in eucommia leaf, has an extraction rate of 95%, a low water extraction temperature and short extraction time, utilizes an ultrafilter membrane to remove impurities and separate other side products in the extract, has simple membrane processes and realizes long-term membrane flux stabilization, easy membrane cleaning, a long service life and industrialization. Through the nanofiltration membrane, the extract subjected to impurity removal is concentrate d so that follow-up technical load is reduced and a resin service life is prolonged. Through the method, a nanofiltrated liquid has a COD value <=100 and can be reused in production and basically, waste water is not produced. Through the macroporous adsorption resin, geniposide can be effectively purified. The powder produced by the method has geniposide purity greater than 80% and an extraction rate more than 1.2%.

The invention provides a preparation method of graphene oxide-modified cellulose acetate forward osmosis membrane. The preparation method comprises the following steps of adding graphene oxide into lactic acid or polyethylene glycol, oscillating, and dispersing by ultrasonic wave, so as to obtain a graphene oxide additive solution; adding cellulose acetate into the graphene oxide additive solution, oscillating or stirring and dissolving for 12-24h at the temperature of 5-60 DEG C until the cellulose acetate is fully dissolved, stilling the prepared graphene oxide-modified cellulose acetate osmosis membrane casting liquid for 5-12h at the normal temperature, and completely defoaming the membrane casting liquid; paving the prepared graphene oxide-modified cellulose acetate osmosis membrane casting liquid on a flat plate paved with a support layer to form the membrane. The preparation method has the advantages that by utilizing the good water transfer promoting function of graphene oxide, the cellulose acetate forward osmosis membrane material is modified, the stable membrane flux and salt rejection rate are obtained, and the anti-pollution capability of the membrane is improved.

The invention discloses a specially-shaped voice coil, and a specially-shaped voice coil winding device and method. The specially-shaped voice coil comprises at least two circumferentially wound coillayers; one sides of the adjacent coil layers are aligned; the other sides of the adjacent coil layers are shaped as steps; and furthermore, any one independent coil is rectangular or quasi-rectangular. According to the specially-shaped voice coil, and the specially-shaped voice coil winding device and method disclosed by the invention, in a same-length winding condition by same enamelled wires, the magnetic flux of the specially-shaped voice coil is greater than that of the traditional rectangular voice coil; direct forming of the specially-shaped voice coil, the single coil of which is rectangular or quasi-rectangular, can be realized; reshaping is unnecessary; the voice coil is high in precision and steady in magnetic flux; the specially-shaped voice coil has two winding forms includinginternal wire incoming and external wire incoming; the cut-in angle can be adjusted through a wire incoming unit; guide and fixation of the enamelled wires are convenient; due to design of a temperature control unit, the enamelled wires of the voice coil are stuck stably and reliably; the overall design is simple; operation is carried out conveniently and reliably; the yield of directly formed products is high; and thus, the specially-shaped voice coil is easy to popularize and apply.

The present invention relates to a light emitting diode (LED) lighting system (10) comprising a plurality of LED light sources for generating a mixed color light, the plurality of LED light sources including at least one LED light source comprising at least one LED adapted to emit light of a first wavelength and a wavelength converter for converting at least a portion of the light emitted from the LED(s) to light of another wavelength, and a control system (33) for individually controlling the flux output of the LED light sources. The control system in turn comprises means for providing feedback of the flux of at least one of the LED light sources, the feedback being based on input from an unfiltered sensor (22) responsive to the actual flux of the individual LED light source, for allowing control of the at least one LED light source in accordance with the feedback, and means for providing first control data based on input from a filtered sensor (36) responsive to the first wavelength flux, for allowing adjustment of at least one LED light source, to compensate for first wavelength leakage of the wavelength converted LED light source(s). The present invention also relates to a system and method for controlling a LED lighting unit.

The invention discloses an anti-fouling hollow fiber membrane and a preparation method of the anti-pollution hollow fiber membrane, and provides a hollow fiber membrane capable of resisting fouling of colloidal substances and protein, and the preparation method of the hollow fiber membrane. The preparation method comprises the steps of fully mixing 1-3% of sodium polyacrylate and 3-5% of water, then fully mixing 15-20% of a polymer, 63-65% of a film formation solvent and 10-15% of a film formation additive with the above mixture, removing air bubbles to obtain casting film liquid, extruding the casting film liquid by a spinning nozzle, then enabling the casting film liquid to enter a coagulating bath at 60-80 DEG C, drying at 80-100 DEG C after coagulating for certain time, so as to obtain the anti-fouling hollow fiber membrane, wherein the coagulating bath is aqueous solution containing sodium polyacrylate cross-linking agents. The hollow fiber membrane can effectively reduce nonspecific binding of membrane surface and pollutants such as protein and colloid through a hydrophobic bond, and reduces the membrane surface adsorption, so that the membrane flux is relatively stable and the attenuation rate is reduced.

The invention discloses a voice coil winding and assembling device, which is used for winding the voice coil and assembling the voice coil and the carrier, including an integrated wire inlet unit, a wire winding unit, a temperature control unit, a detection camera, and a transfer and assembly unit. The invention can realize the direct molding of a rectangular or quasi-rectangular voice coil without shaping, and has high precision of the voice coil and stable magnetic flux. It integrates voice coil winding, voice coil detection and voice coil assembly, which increases production efficiency. It has the winding function of special-shaped voice coils, which expands the applicability of the equipment. The voice coil can be fine-tuned according to the error of the mounting groove of the carrier, so that the fit between the voice coil and the carrier is more consistent. The flipping mechanism meets the flipping requirements of the voice coil assembly, and can adapt to double-sided steering adjustment assembly. The design of the heating unit makes the bonding between the enameled wires of the voice coil stable and reliable. The equipment has a high degree of intelligence, which saves labor costs and improves the product qualification rate. The overall structure is ingenious, the connection between each mechanism is smooth, and the operation is stable.

The invention discloses a temperature adjusting method and device of a motor, and a motor. The method comprises the steps of: obtaining the temperature of each part to be detected of a motor, whereineach part to be detected corresponds to at least one temperature adjusting part; detecting a difference value between the temperature of each part to be detected and a preset temperature; and controlling the temperature adjusting speed of the temperature adjusting part corresponding to the difference value, wherein the temperature adjusting speed shows the speed for adjusting the temperature of the corresponding part to be detected. The technical problem is solved that a current heat dissipation method cannot ensure the uniform whole temperature of the motor.

The invention discloses a cleaning method and a cleaning system of a tubular membrane, and provides a cleaning method and a cleaning system which can recover the membrane flux. The cleaning method comprises the following steps of: cleaning with clean water; cleaning through mixing particles, clean water and air: after mixing particles, clean water and air, and cleaning the mixture of particles, clean water and air in the tubular membrane, wherein air bubbles are broken caused by the collision of air bubbles and particles, energy is released extensively to cause partial vibration, and meanwhile, the particles and air bubbles are both rubbed with the membrane so as to lead to falling of pollutants on the surface of the membrane; and discharging the pollutants to complete the cleaning process. According to the cleaning method disclosed by the invention, the step of cleaning by mixing particles, clean water and gases is added; the air bubbles generated by the gases can be collided with the particles, and energy is released extensively so as to lead to partial vibration; turbulence is formed in a membrane component; particles flow rapidly in a system; and the air bubbles and particles are both rubbed with the surface of the membrane so as to remove surface pollutants. The cleaning effect and the cleaning efficiency can be improved greatly by combining with two aspects.

The invention relates to an energy storage battery of a magnetic-suspending flywheel. The energy storage battery of the magnetic-suspending flywheel is characterized in that a repulsive magnetic suspending bearing between a rotor and a stator of the magnetic-suspending flywheel through an axial permanent magnet and a radial permanent magnet. The flywheel is suspended in a sealed vacuum environment. 12 permanent magnets are arranged in the middle of the flywheel in an array shape and form an integrated generator/motor with 12 coils in the middle of the stator. A flywheel dynamic stable system generates an induced electromotive force so as to generate a lorentz force opposite to an offset direction through the coils in the upper and lower circular discs of the rotor of the flywheel because the rotor is deviated from a normal position, so that the flywheel returns the normal position. An electronic power control system is integrated in the stator. As the coils and the control system generate heat, a heat pipe radiating system discharges heat to ensure normal operation of the system. As the flywheel which rotates at a high speed is of extremely high energy, once the rotor and the stator abrade to quickly generate high temperature, risk can be controlled within the minimum range by quickly and emergently releasing high pressure nitrogen.

The invention discloses an ultralow-pressure membrane separation device for desalinating bitter and salty water. The ultralow-pressure membrane separation device comprises a precise filter, an ultrafiltration membrane system, an ultrafiltration membrane dialysis tank, a nanofiltration (or low-removal-rate reverse osmosis) membrane system, a nanofiltration (or low-removal-rate reverse osmosis) membrane dialysis tank, a reverse osmosis membrane system, a pump and pipelines for connecting various parts; after raw water (the bitter and salty water) is filtered through the precise filter and then introduced to an ultrafiltration membrane for filtration, after the filtration of the ultrafiltration of the ultrafiltration, ultrafiltration dialyzate is introduced into a first-stage nanofiltration (or low-removal-rate reverse osmosis) membrane for treatment, a first-stage concentrated solution is discharged outwards or is used for a backwashing ultrafiltration membrane, or is processed by an energy recycling device so as to increase the pressure for the ultrafiltration dialyzate to undergo first-stage nanofiltration (or reverse osmosis), and water produced from the first-stage nanofiltration membrane is then introduced into a second-stage reverse osmosis membrane system; and second-stage dialyzate is qualified fresh water, and a second-stage concentrated solution is applied to the backwashing ultrafiltration membrane or is discharged outwards or recycled. The ultralow-pressure membrane separation device has the advantages of extremely low equipment operation pressure, good effect on desalinating the bitter and salty water, low equipment operation cost and the like.

The invention creatively provides a technological system for treating terrestrial heat tail water by utilizing a tubular membrane. The technological system comprises a cyclone sand remover, bag type filters, a tubular membrane filtering device, a washing tank, a washing ump, a degassing tank and an electric control device; two sets of the bag type filters are arranged; one bag type filter is usedand one bag type filter is standby, and the two bag type filters are alternatively used; the tubular membrane filtering device is divided into two grades; each grade comprises four tubular membrane filters which are arranged in parallel, three tubular membrane filters are used and one tubular membrane filter is standby; the system is provided with a thermometer, a pressure meter and a flow meter;the electric control device comprises a PLC (Programmable Logic Controller) and can realize online automatic backwashing of equipment and prevent fouling and blocking, so that stable operation of equipment is ensured. The technological system takes a tubular membrane as a core and integrates equipment including the cyclone sand remover, the bag type filters and the like to form a technology of treating the terrestrial heat tail water by utilizing a set of water treatment system; the technological system has the advantages of high integration degree, high automation degree, high treatment efficiency and long service life; water treatment can reach reinjection water quality requirements and the treatment cost of reinjection water is greatly reduced.

The invention discloses a preparation method of a composite lithium metal negative electrode with a three-dimensional structure and a product of the composite lithium metal negative electrode. An inherent pore structure of carbon fiber cloth taking thin-crystal graphite flakes as pore walls not only can relieve volume change in a lithium deposition/dissolution process, but also can introduce a lithium storage mechanism through a lithium insertion/extraction path; and meanwhile, the carbon cloth has light weight and good flexible mechanical properties, and can inhibit the growth of lithium dendrites. In the lithium electrochemical deposition process, the metal lithium and the cobalt fluoride are subjected to an irreversible reduction reaction to form cobalt nanoparticles and the lithium fluoride; the cobalt nanoparticles have smaller binding energy with the lithium metal, so that nucleation sites can be increased, the nucleation overpotential of the lithium metal is reduced, and uniform diffusion of lithium ions is promoted. The lithium fluoride formed in situ has good interface contact with the carbon fiber cloth, has high mechanical modulus, high chemical stability and high interface energy with lithium, and can uniformize lithium ion flux and effectively inhibit dendritic crystal growth of lithium.

The invention relates to a membrane clarification and filtration method for a soy sauce. The method comprises the following steps of additionally mounting electrodes on a stock solution side and a penetrated solution side of a micro filtration membrane, performing procedure-fluctuation regulation on the voltage difference between the electrodes on the stock solution side and the penetrated solution side, changing the direction of an electric field and adjusting and controlling the electric field; besides adjusting and controlling a flow field, so that surface flows of the micro filtration membrane on the stock solution side generate impulse flows; through the coupling of the electric field and the flow field, performing linkage control, and clarifying and filtering the micro filtration membrane of the soy sauce. Compared with the prior art, the membrane clarification and filtration method disclosed by the invention can effectively control the pollution of the organic membrane, improve the operating efficiency and the efficiency energy of the membrane; nutrient components and flavor of products can be well reserved, and besides, muddy articles and bacteria such as micro particles, protein and the like in a raw soy sauce can be thoroughly separated and removed, so that the phenomenon of secondary precipitation is effectively avoided.