13014results about How to "Improve the safety of use" patented technology

The invention relates to a high-temperature-insulating material and a preparation method therefor and particularly relates to the high-temperature-insulating material, which has a nano porous structure, prepared through forming an aqueous-phase uniform three-dimensional-network nano porous structure by taking thixotropic colloid as a template agent and adding a binding agent, aggregates, powder materials, an opacifier and admixtures. The preparation method for the high-temperature-insulating material, disclosed by the invention, is simple and easy in operation, low in production cost and environment-friendly and safe in process, does not need high-pressure special equipment, is free of combustible and explosive or other harmful substances and is beneficial to mass production. The high-temperature-insulating material disclosed by the invention has the characteristics of light weight, high strength and low coefficient of thermal conductivity, can be used for preparing high-temperature-insulating bricks, heat-insulating plates, special-shaped pieces and coating materials and can be applied to the heat insulating protection of equipment such as high-temperature furnace hearths, pipelines and valves in the fields of aerospace and military industries, metallurgical forging, petroleum refining, electric power and the like, so that the safety of use and the level of energy saving and consumption lowering are improved.

The invention discloses a car parking place management method based on a mobile phone APP and a system thereof. Through the mobile phone APP, available parking places for rent can be subjected to management such as query, reservation, renting, recovery and the like, and the parking places are locked and unlocked through remote control. The system comprises a server and a parking place ground lock. The server is connected with the parking place ground lock through a site controller. The parking place ground lock is provided with a two-dimensional code for scanning. The system also comprises a mobile phone which is provided with a positioner. The server is provided with an APP service platform. The mobile phone is in wireless connection with the server. The car parking place management method and system have the advantages of simple use process, high use safety, the query of parking place information at any time and the elimination of a parking fee collection link loophole.

The invention discloses a lid assembly. The surface lid is fixedly rotatably provided with a handle base, the inner lid is provided with an open crank which cooperates with the handle base and is in linkage with a steel lid, the surface lid, the inner lid and the steel lid are successively penetrated through an exhaust pipe communicating with the inner cavity of the cooker body; the surface lid is provided with a pressure limiting valve which cooperates with the outer port of the exhaust pipe. One end of the pressure limiting valve is provided with an exhaust ejector rod which is matched with the bottom of the pressure limiting valve, an exhaust lever is arranged between the exhaust ejector rod and the handle base, and a cam is arranged on the handle base in a linkage manner. The cam is provided with a flange cooperating with a force receiving end of the exhaust lever and the biasing end of the exhaust lever is located at the bottom of the exhaust ejector lever. The lid assembly enables simple and efficient remote venting of the electric pressure cooker. The invention also discloses an electric pressure cooker to which the lid assembly is applied.

The invention discloses a bicycle lease management method and system based on a mobile phone APP. Through the mobile phone APP, lending and returning management can be carried out on bicycles which can be leased, and the system comprises a server, bicycle locking pillars and bicycles. The server is communicated with the bicycle locking pillars, the bicycles can be locked on the bicycle locking pillars which are provided with two-dimension codes or bar codes for scanning, a mobile phone is included, a locator is arranged on the mobile phone, the server is provided with an APP service platform which is provided with a bicycle locking pillar position distribution inquiring device, and the mobile phone is in wireless connection with the server. According to the bicycle lease management method and system based on the mobile phone APP, a using process is simple, using safety is high, and bicycle lease information can be inquired at any time.

The invention relates to an optical storage alternating current and direct current hybrid micro-grid system and a control method of the system. The system and the method are characterized in that a hybrid micro-grid comprises an alternating current micro-grid subsystem, a direct current micro-grid subsystem and a power exchange control system; the alternating current micro-grid subsystem comprises an alternating current side photovoltaic power generation unit, an alternating current load and a grid-connected interface; the direct current micro-grid subsystem comprises a direct current side photovoltaic power generation unit, a storage battery energy storage unit and a high/low voltage direct current load; the power exchange control system comprises a two-way AC/DC power converter, a transformer, a micro-grid controller and a communication system, the storage battery energy storage unit is used for controlling direct current bus voltages, and P/Q control is adopted in the two-way AC/DC power converter. Under the stabilizing effect of direct current side energy storage, the direct current micro-grid subsystem conducts photovoltaic power generation and is connected to a large power grid through the alternating current micro-grid subsystem at constant power, and the photovoltaic utilization rate is increased. By means of the control method, the power supply reliability and economical efficiency of the hybrid micro-grid are effectively improved.

The invention relates to a secondary Li-ion battery and a method of preparing a negative pole piece thereof. The paste containing different negative active materials or the paste of different ratios are coated by level on the two sides of a negative current collector respectively according to a certain order to form a plurality of negative diaphragm layers, and different thickness can be used for each diaphragm layer. By controlling different active materials, ratio solutions and coating thicknesses, the change of the porosity and the resistance of each layer is controlled, the porosity of the surface diaphragm layers can be larger than that of the inner diaphragm layers, which prevents the penetration of the electrolyte in the internal core and enhances the performance of the core, and by adjusting the resistance of the surface diaphragm layers, the surface contact resistance is increased to have a function of protecting the inner diaphragm layers. Then, by the processes of cold pressing, striping, welding terminals and so on, the negative pole piece is fabricated, and thereby the secondary Li-ion battery containing the negative pole piece is fabricated.

The invention relates to an aqueous nano porous corrosion-resistant heat-insulated coating material and a preparation method for the corrosion-resistant heat-insulated coating material and particularly relates to an aqueous corrosion-resistant heat-insulated coating material, which has a nano porous structure, prepared through forming an aqueous-phase uniform three-dimensional-network nano porous structure by taking thixotropic colloid as a template agent and adding a film forming agent, a reinforcing powder material, a functional powder material and admixtures. The preparation method for the corrosion-resistant heat-insulated coating material, disclosed by the invention, is simple and easy in operation and low in production cost, is environment-friendly and safe and is beneficial to mass production. The nano porous corrosion-resistant heat-insulated coating material disclosed by the invention has excellent heat insulating and corrosion resisting properties and can be applied to the heat insulating and corrosion resisting of equipment such as high-temperature furnace hearths, pipelines and valves in the fields of aerospace and military industries, metallurgical forging, petroleum refining, electric power and the like, so that the safety of use and the level of energy saving and consumption lowering are improved.

The invention discloses an electric-heating full-automatic soybean milk machine with fuzzy control, comprising a nose, a cup body, a motor, a motor transmission shaft, a rotary blade, a heating element, a temperature-measuring sensing head, an anti-overflow sensing head, an anti-dry-burning sensing head and a control circuit board, wherein because of the adoption of the control circuit board, a preparation method of soybean milk, is programmed and systemized, intelligent control on the processing process of the soybean milk is realized by a single chip microcomputer, especially the functions of automatically adjusting the heating power according to the temperature and controlling the temperature rising rate can be introduced during a plurality of time intervals in the processing process of the soybean milk.

The invention discloses a juicer with the air bleeding function and aims at providing the juicer which can greatly reduce the oxygen content in a juicing cavity, prevents the browning from occurring in the juicing process and maintains the nutritional components and mouth feel of fruit juice or vegetable juice. The juicer is characterized in that a charging barrel is arranged on the juicing cavity; a juicing mechanism is arranged in the juicing cavity; an output shaft of a juicing motor is connected with a driving shaft of the juicing mechanism; the juicer also comprises an air bleeding device; a sealing device is arranged on the charging barrel; an interconnected cavity is formed by the charging cavity, the juicing cavity, a juice receiving part and a residue part; the mutual connecting parts of the cavity body are connected in a sealing manner; the connecting part between the cavity and any one part is sealed; the cavity is airtight in the juicing process; an air bleeding port of the air bleeding device is communicated with the cavity; and an exhaust port of the air bleeding device is arranged outside the cavity. The juicer can juice foodstuff in the juicer under an oxygen deficiency condition, thereby the browning is effectively controlled, the browning of foodstuff liquid is greatly reduced in the juicing process, the nutritive loss is reduced, and the good mouth feel and appearance color are maintained.

The invention discloses a high-temperature-resisting composite isolation film which is suitable to be used as an isolation film in a lithium ion battery, and a preparation method thereof. The invention aims at solving the problem in the existing lithium ion battery that the isolation film has poor high-temperature resistance, so that thermo-runaway can occur. The high-temperature-resisting composite isolation film provided by the invention is prepared through dry compound of a polyphenylene sulfide film and a polyolefin micro-porous film. A polyphenylene sulfide film-casting mother liquor is subjected to on-line extrusion and film casting; an obtained film is subjected to dry compound with the polyolefin micro-porous film; and an obtained composite film is subjected to extraction, washing, and drying, such that the high-temperature-resisting composite isolation film is prepared. The high-temperature-resisting composite isolation film provided by the invention can resist a high temperature of 250 DEG C. The film is especially suitable to be applied in lithium ion batteries, and is suitable to be applied as an isolation film in other chemical storage batteries and super-capacitors.

The present invention discloses multifunctional graphene electrothermal paste, a multifunctional electrothermal film prepared by the same, a preparation method and application. The preparation methodcomprises the following steps that: (1) graphene nanoplatelets are modified by introducing inducible lipidation and cross-linking reaction groups; (2) the modified graphene, a lipidizable and cross-linking reaction emulsion and various kinds of additives are subjected to liquid phase mixing, the above dispersion liquid is induced to undergo in-situ esterification and cross-linking reaction, so that graphene-based homogeneous electrothermal paste can be formed; (3) an electrothermal paste loading matrix is modified, so that the interfacial property of the electrothermal paste and the matrix material can be enhanced; and (4) the graphene electrothermal paste can be combined with different base materials, so that electrothermal products can be prepared. The graphene electrothermal material ofthe invention has the advantages of adjustable resistivity, adjustable use voltage, adjustable heating efficiency, far infrared heating function, flame retardancy, wide application range, high safety, energy-saving performance and the like, and can be applied to home building material manufacturing, human body care, aviation equipment, medical equipment, transportation pipelines, automobiles andother fields.

The invention discloses alloyed vermicular graphite cast iron produced by alloying the ordinary vermicular graphite cast iron. The cast iron comprises an alloy of two or more of elements such as Cu, Cr, Mo, Ni, Sn, Sb, B, Ti, Al, V and the like. The vermicular graphite cast iron comprises the following chemical ingredients in percentage by weight: 3.00-3.80 percent of C, 2.00-2.80 percent of Si, 0.45-0.95 percent of Mn, less than 0.06 percent of P, less than or equal to 0.02 percent of S, and 0.02-0.60 percent of alloy ingredient. The technical indexes of the vermicular graphite cast iron are that: VG is more than or equal to 80 percent, Rm is more than or equal to 380 MPa, hardness is between 180 HBW and 258 HBW, cast pearlite is more than or equal to 60 percent, and elongation rate is between 1 percent and 2 percent. The vermicular graphite cast iron has the advantages of high intensity, high heat conductivity, high wear resistance, high thermal fatigue resistance, small deformation, simple casting process and easiness in mechanical production. The service life of a produced brake drum for a high-speed and heavy-load automobile is remarkably prolonged, and safety is ensured.

The invention relates to the technical field of the detection of a battery, and in particular relates to a screening method for lithium-ion battery consistency. The method is characterized in that the screening is carried out according to the limit capacity, the limit internal resistance and the limit voltage droop in a high-temperature environment, a low-temperature environment or a normal-temperature environment of a single battery; the battery is charged and discharged, so that the screening can be further carried out by comparing the variation of the capacity, the voltages and the currents in the charging and discharging processes, the application efficiency of the single battery can be improved, the service life of the single battery can be prolonged, and the safety of the single battery can be improved.

The invention relates to an airplane anti-skid brake control system and an airplane anti-skid brake control method. In the airplane anti-skid brake control system, two airplane wheel speed sensors are respectively applied to a left airplane wheel and a right airplane wheel of the airplane and connected with the input end of an electronic anti-skid control box; an electro-hydraulic servo valve is connected with a brake valve, a brake device, the electro-hydraulic servo valve and the electronic anti-skid control box respectively; the input port of the electronic anti-skid control box is connected with the airplane wheel speed sensors; and the output port of the electronic anti-skid control box is connected with the electro-hydraulic servo valve. In the invention, the electronic anti-skid control box judges true and false of the received airplane speed signal by comparing the airplane speed signal to be judged with the speed of the airplane wheels at different time or comparing the speed signals of the two airplane wheels so as to perform anti-skid control according to the speed signals of the airplane wheels which are judged to be true; and the airplane wheel brake pressure is adjusted according to the received instruction through the electro-hydraulic servo valve, so safe and reliable brake of the airplane wheels is realized.

The invention discloses a co-production system and a co-production method for biomass carbon, gas, wood tar and wood vinegar. The co-production system comprises a biomass dry distillation kettle, a high-temperature heating furnace, a water cooling device, a washing device, a liquid separation device, a gas storage tank, a water-ring vacuum pump, a compressor, wood tar storage tank and a wood vinegar storage tank, wherein the liquid separation device separates wood vinegar and wood tar in the mixed liquid obtained by gas-liquid separation of the water cooling device; the co-production method comprises the following steps: 1, charging; 2, high-temperature carbonization: water cooling and gas-liquid separation, washing, gas storage and separation and storage of liquid matters; and 3, obtaining of the biomass carbon after the high-temperature carbonization. The co-production system for the biomass carbon, gas, wood tar and wood vinegar has the advantages of reasonable design, convenient processing, simple mounting arrangement, easy operation and good effect; and the co-production method has the advantages of convenient realization, high yield, low cost, fast co-production and relatively high production purity and has obvious economic and social benefits and wide popularization and application prospect.

The invention relates to an efficient antibacterial antiviral treating agent, a preparation method and an application thereof. The antibacterial antiviral treating agent comprises a nanometer silver colloid, an organic anti-bacterial agent, a cosolvent, a polymer binder and water. According to the antibacterial antiviral treating agent, the use security is high, the quick-acting antibacterial rate of processed medical masks can reach to above 99%, the quick-acting killing effect on H1N1 influenza a virus and H5N1 avian influenza virus is excellent, and the antibacterial antiviral treating agent is non-toxic and harmless to skin and has an excellent long lasting effect.

The invention relates to a novel modified non-woven fabric lithium-ion battery diaphragm. The diaphragm comprises a modified non-woven fabric base material and a filling agent compounded on the modified non-woven fabric base material, wherein the modified non-woven fabric base material comprises a low-smelting-point material and a high-smelting-point material; the low-smelting-point material is subjected to melt crystallization treatment and the weight of the high-smelting point material accounts for 85-99.9% of the total weight of the base material; the residual amount is the low-smelting point material; the filling agent compounded on the modified non-woven fabric base material comprises organic polymer, a first filling material and/or a second filling material. The invention further relates to a preparation method of the battery diaphragm. The preparation method sequentially comprises the following steps: manufacturing a non-woven fabric fiber layer; manufacturing the modified non-woven fabric base material; preparing filling agent slurry; filling; removing a solvent; and carrying out post-treatment. The method is simple in operation and low in cost; a prepared product is low in water content, good in chemical stability and high in mechanical strength; the finished product rate of a battery is increased, the service life is prolonged and the safety is improved.

The present invention discloses safe deduster equipment. The equipment comprises a seat body and an electrical connector in matched connection with the seat body. The periphery of the back side of the seat body is fixedly provided with vertical feet and the vertical feet are provided with universal wheels. The middle end of the lower end surface of the seat body is provided with an insertion opening with a downward port. Inside the seat body, the left and right ends of the insertion opening are respectively, mutually and symmetrically provided with left and right turning grooves configured to extend upwardly. A driving cavity is communicated with the upper parts of the left and right turning grooves. A left locking piece and a right locking piece are respectively arranged inside the left turning groove and the right turning groove. The safe deduster equipment is simple in integral structure, and safe and reliable in whole operation. The problem in the prior art that an electrical connector of a deduster is easily loosened during movement can be effectively solved. The entire equipment is simple and convenient to use and operate, and suitable for popularization and use.