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71results about How to "Solve compatibility issues" patented technology

Photovoltaic refrigerator system controlled based on load prediction and demand response of neural network

The invention discloses a photovoltaic refrigerator system controlled based on the load prediction and demand response of a neural network. A city power grid is connected with a control circuit, a photovoltaic cell panel is connected with an inverter circuit through the control circuit, and the inverter circuit is connected with a refrigerator. A load prediction module is used for building a refrigerator load prediction model according to the meteorological data of Meteorological Bureau, historical load information, refrigerator storing capacity, the types of stored goods and refrigerating temperature and predicting the future load of the refrigerator. An energy management center module is used for making an operation strategy and carrying out control through photovoltaic generation power, the predicted load of the refrigerator and the comparison and analysis of photovoltaic generation on-grid power price and city power price. The photovoltaic refrigerator system can realize the effective combination of photovoltaic generation and the refrigerator, solves the matching problem of photovoltaic generation and the refrigerator through load prediction, reduces fluctuation caused by photovoltaic generation to the power grid, and can not only meet the requirements of users but also realize energy saving and emission reduction.
Owner:山东三九制冷设备有限公司

Building phase-change heat storage composite material used as light aggregate

The invention discloses a building phase-change heat storage material used as light aggregate, which solves the problems of difficulty in storage, high leakage tendency in use, and difficulty in actual construction in the phase-change material which is used in building materials at present. The phase-change heat storage material serving as an aggregate has adjustable phase-change temperature points. The particle diameter is 1.6-20mm, the phase-change latent heat is 10-100 J/g, the cylindrical compressive strength is 2.5-10.0 MPa, and the 80-DEG C cold/heat circulation loss rate is almost zero. The heat storage material is applicable to mortar, concrete or masonry structures with requirements for the heat storage function. The building phase-change heat storage composite material is composed of an adsorbing material, a phase-change material and a packaging material. The adsorbing material adsorbs a certain proportion of the phase-change material with the phase-change temperature of 15-32 DEG C, and then is packaged by the packaging material. The building phase-change heat storage composite material has the advantages of favorable sealability, controllable phase-change temperature and higher strength, and can solve the problems of difficulty in storage, low stability, poor formability and the like in the existing phase-change material.
Owner:SOUTHEAST UNIV

OLED display device

The invention provides an OLED display device comprising a display panel and a camera component, wherein the display panel comprises a base substrate and a display film layer, the camera component comprises a sensor, a signal module and a lens, the sensor is disposed on a recess of the base substrate, the height of the sensor is greater than the depth of the recess, the upper end of the sensor andthe signal module extend into the TFT layer of the display film layer, the TFT layer is internally provided with a camera signal transmission line electrically connected to the signal module, and thelens is disposed in the opening of the display film layer correspondingly located to the upper part of the sensor. The OLED display device provided by the invention respectively builds the sensor andlens of the camera component into the display panel structure relatively independently such that the assembly of the camera component is during the manufacturing process of the display panel, therebyimproving the degree of integration of the display panel and the camera component, realizing the high-integration assembly of the OLED display device with the design of the under-screen camera, and effectively improving the screen ratio and the assemblability of the display device.
Owner:WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

Anti-corrosion process for steel structure

InactiveCN109622332ASimple anti-corrosion processSimple processAnti-corrosive paintsSpecial surfacesEpoxyHydrogen
The invention discloses an anti-corrosion process for a steel structure. The anti-corrosion process comprises the following steps of S1, surface pretreatment of the steel structure, S2, surface descaling of the steel surface, S3, preparation of waterborne rust anticorrosive coating for the steel structure, S4, preparation of a primer, S5, steel structure coating, and S6, paint coating quality inspection and acceptance. The anti-corrosion process combines the characteristics of an epoxy emulsion and an acrylic emulsion to improve the comprehensive performance of the coating, a polyaniline emulsion is directly added into the coating to solve the compatibility problem between polyaniline and other polymer emulsions and the stability problem of the prepared anticorrosive coating, the anti-corrosion performance of the coating is improved, acid and active hydrogen in conversion liquid and polyaniline can promote the curing of the epoxy resin to be used as a curing agent for an epoxy emulsion, the process is simple, and the cost is low. The anti-corrosion process of the steel structure is simple, has good anti-corrosion performance and simple construction, can greatly reduce the labor intensity of coating, has high weather resistance, and can realize long-term protection for the steel structure.
Owner:淮北市菲美得环保科技有限公司

Corrosion resistance technology of steel structure

The invention discloses a corrosion resistance technology of a steel structure. The corrosion resistance technology of the steel structure comprises the following steps of S1, carrying out surface pretreatment on the steel structure; S2, derusting the surface of a steel material; S3, preparing a waterborne over-rust corrosion protective coating of the steel structure; S4, coating the steel structure; and S5, inspecting and accepting the oil paint coating quality. According to the corrosion resistance technology of the steel structure provided by the invention, the characteristics of an epoxy emulsion and an acrylic emulsion are combined, so that the combination property of a coating is improved; a polyaniline emulsion is directly added into the coating, so that the compatible problem of polyaniline and other macromolecule emulsions and the stability problem of the prepared corrosion-resistance coating are solved, and the corrosion resistance of the coating is improved; and acid and reactive hydrogen in the polyaniline can promote the curing of the epoxy resin, and the polyaniline is used as a curing agent of the epoxy emulsion, so that the process is simple and low in cost. The corrosion resistance technology of the steel structure is simple, not only has favorable corrosion resistance, but also is simple and convenient to construct, is capable of greatly relieving the labor intensity of coating, has high weather resistance at the same time, and can realize long-time protection on the steel structure.
Owner:淮北市菲美得环保科技有限公司

Oscillation restraining method and device for train traction system

The invention provides an oscillation restraining method and device for a train traction system. The oscillation restraining method comprises the steps that the distortion degree of the input tractionvoltage, the distortion degree of the supporting capacitor side voltage and the distortion degree of the input current of a current transformer are calculated; according to the distortion degree of the input traction voltage, the distortion degree of the supporting capacitor side voltage and the distortion degree of the input current, a first traction brake level signal is corrected, and thus a second traction brake level signal is obtained; and according to the second traction brake level signal, the output torque of a traction motor is adjusted. According to the oscillation restraining method and device for the train traction system, characteristic contents corresponding to the input traction net voltage, the supporting capacitor side voltage and the input direct current of the tractioncurrent transformer in the train traction system are monitored, the distortion degrees of the corresponding net voltage, the corresponding voltage and the corresponding current are calculated according to the corresponding characteristic contents, the backward stage output torque of the traction current transformer is finely adjusted according to the distortion degrees, and accordingly oscillation on the direct current side of the traction system is restrained.
Owner:CHINA CREC RAILWAY ELECTRIFICATION BUREAU GRP

Fiber-optic gyroscope system based on 60-micron optical fiber and optical fiber welding method

The invention discloses a fiber-optic gyroscope system based on a 60-micron optical fiber and an optical fiber welding method. According to the invention, a sensitive optical fiber ring formed by winding 60 optical fibers is used and a set of high-precision fiber-optic gyroscope is built, wherein the size of the fiber-optic ring is phi 96.5 * phi 109.5 * 16.5 (the inner diameter * the outer diameter * the thickness), the length of the fiber-optic ring is about 3400 m, and the theoretical precision of the fiber-optic ring can reach 0.0005 degree/h compared with an 80 fiber-optic ring (2500 m) with the same volume. A light source with a tail fiber of 80 or 125, a Y waveguide, a coupler and a detector are continuously used, and the solution to a problem of welding matching of a 60 optical fiber ring and the 80 waveguide is the key. An FSM-100P polarization-maintaining welding machine from the Fujikura and an ERM-102 extinction ratio tester of a GP company are used for manually aligning and welding 60 optical fibers and 80 waveguide fibers, the extinction ratio of the 60 optical fibers and the 80 waveguide fibers is tested, and the extinction ratio is compared with an extinction ratioof 80 optical fiber rings and 80 waveguide fibers. Connection of the whole fiber-optic gyroscope system is completed, and the zero-bias stability of the fiber-optic gyroscope system is tested. According to the invention, the matching problem of 60 optical fiber and 80 optical fiber devices is solved, and the selection of devices for manufacturing gyroscopes is more flexible.
Owner:HEBEI HANGUANG HEAVY IND

Universal environment-friendly gold and silver printing ink for shrink films and preparation method for universal environment-friendly gold and silver printing ink

The invention discloses a universal environment-friendly gold and silver printing ink for shrink films and belongs to the technical field of printing ink. The universal environment-friendly gold and silver printing ink is prepared from the following raw materials in percentage by mass: 25% to 30% of resin combination, 45% to 60% of solvent combination, 10% to 25% of pigment and 3% to 7% of auxiliaries, wherein the resin combination is prepared from acrylic resin, dinitrocellulose, epoxy resin, polyurethane resin and chlorinated polypropylene, and the solvent combination is a mixture of ethyl acetate, isopropanol, n-propyl acetate and propylene glycol methylether. The printing ink disclosed by the invention is benzene-free and ketone-free and can be universally applied to PVC, PET and OPS thermal-shrink films; the printing ink can be stored for 3 months without discoloring and precipitating and is small in coefficient of friction; and after the printing ink is printed in a manner of being matched with the thermal-shrink films, the shrink films are free of curling and tinting, the print products are in line with environment-friendly requirements and are safe and non-toxic and recoverable, and the printed shrink films have very high resistance to alcohols and tetrahydrofuran, so that the problem in compatibility with glue when the films are subjected to skin-packaging closing is excellently solved.
Owner:CHENGDU PRESSTER NEW MATERIALS

Novel constant-output-current BUCK circuit

The invention discloses a novel constant-output-current BUCK circuit which comprises the components of a current sensing resistor, wherein one end of the current sensing resistor is connected with a rectifying switch node, and the other end is connected with an output anode; an output capacitor of which one end is connected with the output anode and the other end is connected with an output cathode; a high-level switch which is connected with an input power supply anode and a rectifying switch node; a low-level switch which is connected with an input power supply cathode and the rectifying switch node; a first signal amplifying and translating module which generates a triangular wave signal; a second signal amplifying and translating module which generates a real-time current signal; and an average value calculating module which acquires an average current signal that represents an inductor average current value according to the real-time current signal. Compared with prior art, the novel constant-output-current BUCK circuit has advantages of settling a high-level switch matching problem, preventing cost increase and switching efficiency reduction by means of one current sensing resistor, ensuring high precision of output current, and preventing a problem of actual use performance reduction caused by factors of uncertain frequency, etc.
Owner:江苏芯潭微电子有限公司

HDPE reclaimed material, preparation method thereof and HDPE pipe

PendingCN112390999AIncrease the length of the molecular chain segmentGood flexibilityPolymer scienceCross linker
The invention provides an HDPE reclaimed material and a preparation method thereof, and the preparation method comprises the following steps: A) crushing an extrusion grade HDPE reclaimed material toobtain a crushed material; and B) mixing the crushed material, a cross-linking agent and an inorganic filler, and carrying out extrusion granulation to obtain the HDPE reclaimed material, wherein thecross-linking agent is an aromatic cross-linking agent and/or an aliphatic cross-linking agent. Compared with the prior art, the preparation method provided by the invention has the advantages that the recycled waste polyethylene small hollow material containing 10% of other plastic impurities is used as a main raw material, the molecular weight and the flowability of polyethylene are regulated and controlled by adopting a chemical repairing means, the molecular chain segment length of the material is increased through a chain extension reaction, and the material is endowed with high flexibility, and mechanical properties of impact strength is improved; meanwhile, the problem of compatibility of impurities in the crushed material raw materials and main body plastic is solved, and the special pipe material with excellent ring flexibility is prepared. The invention further provides a HDPE pipe.
Owner:CHINA GEZHOUBA GRP LVYUAN TECH CO LTD
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