901results about How to "To avoid" patented technology

The invention provides a system for comprehensive utilization of three industrial wastes, mainly relating to the field of energy conservation and emission reduction, in particular to the comprehensive utilization of the three industrial wastes; to realize the objective of energy conservation and emission reduction required by the recycle economy, a system technology targeted at comprehensive utilization of the three industrial wastes of factories is adopted; in the invention, the reactor in the nuclear plant, the boiler in the coal-fired power plant and other types of supercritical boilers are utilized to provide a new cooling and turbine drive mode to solve the issue of industrial discharge of greenhouse gas and other polluting gases; in addition, collected emissions are utilized to produce nuclear fuel, compound chemical fertilizer or feedstuff and other chemical raw materials; moreover, to realize recycling of resources and sustainable utilization of energy, the original three wastes are innovatively applied to nuclear electric power generation. The system is characterized by comprising 10 major links and the beneficial effect thereof lies in utilizing new methods to realize energy conservation and emission reduction and production cost in the late stage of production can be reduced.

The invention discloses a method and a device for adaptively adjusting frequency of a conditioner motor and an air conditioner. The method includes: acquiring an acoustic signal of a conditioner indoor unit; acquiring initial operating frequencies of a motor of a conditioner fan and determining each abnormal sound pre-estimated frequency; subjecting the acoustic signal to spectral analysis to determine an amplitude value of the acoustic signal under each abnormal sound pre-estimated frequency; if the amplitude value of the acoustic signal under the i-th abnormal sound pre-estimated frequency is greater than an abnormal sound preset threshold, determining that the motor produces abnormal sound when running under the i-th initial operating frequency; combining the initial operating frequencies where the abnormal sound occurs into a resonant abnormal sound frequency range. The method and the device have the advantages that according to the relevancy between abnormal sound generation frequencies and motor operating frequencies, the acoustic signal is subjected to spectral analysis through the motor operating frequencies, whether or not the abnormal sound occurs is judged, the resonant abnormal sound frequency range is set, and the indoor fan can constantly adaptively avoid the resonant abnormal sound frequencies during operating so that the abnormal sound is effectively avoided.

The invention belongs to the technical field of power batteries, and especially relates to a power battery top cover and a power battery using the top cover. The power battery top cover comprises a top cover sheet, and a firs pole pillar, a second pole pillar, a pressure release valve, a liquid injection hole, pneumatic overturning sheets and a resistor block, the first pole pillar is in insulation connection with the top cover sheet, the second pole pillar is electrically connected with the top cover sheet through the resistor block, the pneumatic overturning sheets are electrically connected with the top cover sheet, the conductive block is arranged above the pneumatic overturning sheets, a baffle plate is arranged under the pressure release valve, the pneumatic overturning sheets comprise a first pneumatic overturning sheet and a second pneumatic overturning sheet, and the thickness of the first pneumatic overturning sheet is smaller than the thickness of the second pneumatic overturning sheet; and when the pressure in the power battery increases, the pneumatic overturning sheet and the second pneumatic overturning sheet sequentially move upward in order to electrically connect the first pole pillar with the second pole pillar. Compared with power battery top covers in the prior art, the power battery top cover disclosed in the invention makes the power battery have an excellent safety protection function in overcharging, nailing, short circuit and hot box test.

The invention provides a method for welding Q500qE ultralow-carbon bainite steel for a bridge. The method is excellent in joint mechanical performance and high in welding efficiency and specifically includes that aiming at specific chemical components, applicable technical conditions and different plate thicknesses of the Q500qE ultralow-carbon bainite steel for the bridge, preheating temperature before welding, groove types and welding process parameters are determined; a welding joint type adopts butt joint, penetration angle joint or ship position T-shaped angle joint; a welding method adopts submerged arc welding, CO2 gas shielded semiautomatic welding or shielded metal arc welding. By the welding method, the joint type and thickness specifications of a bridge structure are comprehensively covered, the technical scheme is simple, convenient and high in adaptivity, all implementing effects meet technical requirements of standards related to building of bridge steel and the bridge structure, and the method is of great significance in promoting upgrading of the bridge steel and development of large-span steel bridge building technology. The method can be applied to building of the bridge structure, can also be applied to welding of other ultrathin-carbon bainite steel and is high in adaptivity.

The invention discloses a micro disperse pump which comprises a pump chamber, a one-way valve, a pump inlet, a pump outlet and a driving device inside the pump chamber; wherein, the one-way valve is between the pump chamber and the pump inlet, and between the pump chamber and the pump outlet; the one-way valve is a wedge disperse tube with different positive and passive fluxes; the fluid of pump chamber can be expanded and contracted to generate pressure difference, and according to the different pressures of positive and passive fluxes in the wedge disperse tube, to generate one-way continuous fluid transmission. The inventive micro disperse pump can drive fluid via adsorbing fluid or directly drive fluid. The production is based on silicon micro-mechanical processing technique and micro-mould technique, with simple process, lower cost, high reliability and the application for integrating other micro-fluid systems. It has wider application in the micro-fluid control analysis chip.

The invention provides a method for efficiently recovering lithium in waste and old lithium iron phosphate batteries. The method comprises that waste and old lithium iron phosphate batteries are roasted and sorted to form lithium-containing positive pole powder, lithium-containing positive pole powder and a calcium-containing alkaline solution undergo a reaction under conditions of oxidation so that iron and phosphate radical are converted into a water-insoluble compound and lithium is converted into water soluble lithium hydroxide, and the reaction products are filtered so that a lithium hydroxide solution is obtained and can be used for further preparation of lithium hydroxide or lithium carbonate products. The method replaces the conventional wet acid leaching method in waste and old lithium iron phosphate battery recovery and is free of a strong acid so that production of a large amount of high-salt waste water is avoided. The method realizes selective leaching of lithium, prevents iron impurities from entering the leaching liquid from the source, can produce a high-purity lithium product, has simple processes, utilizes chemical agents having wide sources, has simple process conditions, can prepare a high-purity lithium product through a one-step method, greatly improves recovery efficiency of waste and old lithium iron phosphate batteries and has a good industrial application prospect.

The invention relates to a method for synthesizing TS-2 molecular sieves, in particular to a method for synthesizing the TS-2 molecular sieves under the condition of adding H2O2, which belongs to the technical field of chemical engineering. The method for synthesizing the TS-2 molecular sieves has the advantages of simple operation and high framework titanium content and can effectively avoid the formation of anatase TiO2. The method comprises the following steps of: placing tetraethoxysilane (TEOS) into a dripping tube, dripping the TEOS into a flask, and properly accelerating the stirring speed; adding tetrabutyl orthotitanate (TBOT) into anhydrous isopropyl alcohol (IPA); slowly dripping the mixed liquid into a three-neck flask under the condition of severe stirring; adding 10 percent (wt) of TBAOH template agents into the three-neck flask after the dripping is completed, and adding H2O2 according to a certain n(H2O2)/n(Ti) ratio to obtain light yellow solution; and carrying out heating and alcohol removal through water baths to obtain clear glue solution.

The invention discloses an aqueous double-component polyurethane varnish and a preparation method of the aqueous double-component polyurethane varnish. The raw material formula of the aqueous double-component polyurethane varnish is composed of a component 1 and a component 2, wherein the component 1 comprises the following components: 55-65% of hydroxy polyurethane dispersion, 15-18% of water, 0.2-0.5% of acetobutyryl cellulose flatting agent, 0.5-0.8% of flowing deformation auxiliary agent, 0.5-0.8% of nano silica particle, 0.1-0.3% of defoamer, 0.3-0.5% of defoaming agent, 0.1-0.3% of thickener, 0.4-0.6% of film-forming auxiliary agent, 0.2-0.5% of aqueous drier and 0.5-1.5% of teflon wax; and the component 2 comprises 15-20% of polyisocyanate and 1-3% of degassing solvent. The aqueousdouble-component polyurethane varnish has the characteristics of fast drying speed and good leveling property, is not easy to generate bubbles, is easy to store, and can endow a varnish film with high hardness and high anti-scratching property.

The invention relates to a negative ion generator, comprising a liquid-storing device for storing liquid and an atomizing device for atomizing the liquid to generate a negative ion. The negative ion generator is characterized in that the liquid is plant extracting solution. The negative ion generator can realize zero ozone and no radiation and can prolong the negative ion life. The invention alsorelates to an air purifier comprising the negative ion generator.

The invention provides a diaphragm attaching method, which comprises the following steps of: A, unfolding a diaphragm flatly, and then conveying the diaphragm to a position opposite to a substrate; B, aligning the diaphragm and the substrate; and C, attaching the diaphragm onto the substrate in a surface contact mode. Correspondingly, the invention provides a diaphragm attaching device. According to the diaphragm attaching method and the diaphragm attaching device disclosed by the invention, high-precision attachment between the diaphragm made of flexible material and the substrate can be realized, and bubbles can not be produced easily in an attaching process.

The invention discloses a power generation technique based on pyrolyzation and gasification of household refuse and incineration of fuel gas. The power generation technique comprises the steps that the household refuse is sorted, pulverized and dried; then pyrolyzation and gasification are conducted on the household refuse, so that combustible gas is generated; the combustible gas is incinerated; steam is prepared from hot air obtained through incineration through heat exchange; and the steam is introduced into a steam power generator for power generation. According to the power generation technique based on pyrolyzation and gasification of the household refuse and incineration of the fuel gas, the heat energy conversion rate of pyrolyzation and gasification is higher, the power generation efficiency is greatly improved, and the cost caused by procedure increment can be counteracted by the increased economic benefits; the refuse is subjected to pyrolyzation and gasification under an oxygen-free or oxygen-deficient condition firstly after being dried instead of being directly incinerated, and thus the amount of generated dioxin is greatly reduced; the dioxin can be evenly decomposed by conducting heat-storage incineration of the generated combustible gas through secondary gas at the temperature over 850 DEG C. Tail gas is used for dying the refuse, and smoke emission hardly exists under the adsorption action of the pulverized refuse.

A charging system for a garage is used for charging electric vehicles in a stereo garage and comprises a vehicle carrier plate, a charger and a control module, wherein the vehicle carrier plate is provided with a charging plug and a charging butt joint port, and the control module is used for controlling the transport process of the vehicle carrier plate and charging states of the charger. The charging plug is electrically connected with an electric vehicle, and the charger is in butt joint with the charging butt joint port through an output interface. When the vehicle carrier plate enters a parking space of the stereo garage and the output interface is in butt joint and communicated with the charging butt joint port, the control module controls the charger for charging. When the electric vehicle leaves the parking space of the stereo garage, the control module controls the charger to stop charging before the output interface and the charging butt joint port are separated or/and the charging plug is separated from the electric vehicle. The control modules prevents electrical sparkles generated during plugging and unplugging when the output interface and the charging plug are electrified from damaging the charging butt joint port, the output interface, the charging plug and the electric vehicle, and utilization safety factor of the charging system for the garage is increased.

The invention relates to a wavelength conversion device, a light emitting device which comprises the wavelength conversion device and a projecting device comprising the wavelength conversion device. The wavelength conversion device comprises a light emitting layer and a reflecting layer which are arranged in a stacked manner. The light emitting layer comprises a first photoluminescence material and a first adhesive. The reflecting layer comprises a second photoluminescence material, a second adhesive and reflecting particles. Light emitted from the reflecting layer completely exits through the light emitting layer, and the light emitting layer and the reflecting layer are directly connected or connected through a sintering layer. On one hand, heat generated by the second photoluminescence material only needs to penetrate a part of the reflecting layer to be emitted, the heat spread distance is shortened, and meanwhile the reflecting capacity of the reflecting layer is retained; and on the other hand, the heat generated by the second photoluminescence material is reduced, the wavelength conversion device can work at a low temperature, and therefore the better light emitting efficiency is achieved.

The invention relates to a 5'-phosphoric acid and fluorescence end-labeled nucleotide and provides a molecular structure and a synthetic method thereof. The 5'-phosphoric acid and fluorescence end-labeled nucleotide is better recognizable to DNA (deoxyribonucleic acid) polymerases; after recognized by the polymerases and correctly combined with the same, by the aid of alkaline phosphatase, the 5'-phosphoric acid and fluorescence end-labeled nucleotide allows a fluorescent signal to quickly change from closure to opening; thus the 5'-phosphoric acid and fluorescence end-labeled nucleotide can serve as the polymerase substrate applicable to the fields such as nucleic acid sequencing.

The invention provides a production method of a low carbon steel plate and the low carbon steel plate. The method comprises hot rolling, cold rolling and continuous annealing on a low carbon steel slab; the hot rolling comprises soaking, rough rolling and finishing rolling; the continuous annealing method comprises successive annealing treatment, aging treatment and secondary cooling treatment on low carbon steel subjected to cold rolling; and the low carbon steel subjected to hot finishing rolling is cooled to 670-720 DEG C with a cooling rate of 100-200 DEG C / s, and then cooled to 620-660 DEG C with a cooling rate of 10-20 DEG C / s for hot rolling batching. The low carbon steel obtained by the method provided by the invention has good mechanical properties, and can avoid cross striation generation.

The invention relates to a method for preparing titanium dioxide by a sulfuric acid method, belonging to the field of smelting. The method for preparing titanium dioxide by the sulfuric acid method of the present invention is characterized in that the acid waste water generated in the preparation process is neutralized by adding sodium hydroxide or potassium hydroxide, and the sulfate produced by neutralization is electrolyzed to generate concentrated sulfuric acid. This treatment method avoids the production of a large amount of gypsum. At the same time, the neutralized sulfate can be sold as a by-product, and the concentrated sulfuric acid generated by sulfate electrolysis can be applied again to the sulfuric acid method to prepare titanium dioxide. The problem of acid wastewater treatment and gypsum landfill has also realized the utilization of by-products. At the same time, electrolysis will also produce by-products such as hydrogen, oxygen, and hydroxide. Hydroxide can be used to neutralize acid wastewater. The method not only reduces the discharge of pollutants, but also realizes the recycling of waste water and achieves the purpose of energy saving and efficiency enhancement.

The invention relates to a low-temperature electrolyte for LiFePO4 (lithium iron phosphate) lithium-ion batteries, belonging to the technical field of low-temperature electrolytes for lithium batteries. The electrolyte comprises dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, ethylene carbonate, a film-forming additive and lithium polyoxometallate, wherein the lithium polyoxometallate refers to lithium phosphomolybdate Li3PMo12O40, lithium phosphotungstate Li3PW12O40, lithium silicotungstate Li4SiW12O40 or lithium silicomolybdenate Li4SiMo12O40. For solving the problems that in the prior art, the lithium ion transport of an electrolyte is blocked, slow in speed and low in efficiency and the electrolyte is poor in low-temperature performance, the invention provides a novel fluoride-free low-temperature electrolyte for LiFePO4 lithium-ion batteries; and by taking the non-fluoride lithium polyoxometallate with a three-dimensional skeleton structure as an electrolytic lithium salt and selectively adopting a low-viscosity carbonate solvent, through optimized proportioning, the migration rate of lithium ions is increased, and the low temperature properties of LiFePO4 batteries can be significantly improved.

The invention discloses a spray-free high-tenacity high-temperature-resistant nylon PA6T composite material .The composite material is mainly prepared from, by weight, 70-90 parts of high-temperature-resistant nylon PA6T, 1-5 parts of pigment master batch, 5-30 parts of flexibilizer, 1-5 parts of compatilizer, 0.3-1.2 parts of lubricant, 0.2-0.8 part of antioxidant, 0-1.2 parts of passivator and 0.1-1 part of a nucleating agent .The invention further discloses a preparing method of the composite material .The preparing method includes the steps of weighing all the raw materials, mixing, extruding, drafting, cooling, drying, pelletizing and the like .The composite material has the advantage of being free of spray, the process can be simplified greatly, and the composite material is more environmentally friendly.

The invention provides a method for synchronously preparing peanut oil and peanut peptides through aqueous enzymatic extraction and belongs to the technical field of deep processing of agricultural products and comprehensive utilization of byproducts of the agricultural products, mainly solving the technical problems that protein products obtained according to a conventional technology for preparing oil from peanuts through aqueous enzymatic extraction have low purity and are imperfect in oil flavor and easy in generation of emulsion and the like. The method comprises the following steps of: baking peanut kernels, grinding, adding water so as to adjust acid for extraction, carrying out three phase centrifugation, combining oil bearing emulsion phase and protein concentrate, adjusting alkali, adding protease for enzymatic hydrolysis, carrying out high-temperature enzyme deactivation after the enzymatic hydrolysis is ended, and carrying out three phase centrifugation under a hot condition, thus directly obtaining the free oil and the peanut peptides. Peanuts are processed by adopting the method, so that the emulsion can be basically avoided, and the obtained oil has strong flavor and high quality; the peanut peptides have high purity (75% of protein content) and low relative molecular mass and can be used as a good functional additive to be widely applied to food processing.