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80 results about "Independent research" patented technology

Device and method for testing multi-wave fault current testing device in converter valve operating test

The invention discloses a device and a method for testing a multi-wave fault current testing device in a converter valve operating test. The device comprises a generator return circuit, wherein the generator return circuit consists of a short circuit generator, a breaker, a reactor, a resistor and a primary side of a step-up transformer which are connected in series; a secondary side of the step-up transformer is connected with a wave-modulated branch and a converter valve to be tested in parallel respectively, and the wave-modulated branch consists of the breaker, a wave-modulated capacitor and a wave-modulated resistor which are connected in series; the low potential of the secondary side of the step-up transformer is earthed; and the converter valve to be tested is also connected with a current source and a voltage source, and the converter valve to be tested is connected with the output ends of the current source and the voltage source respectively to form the return circuit. The testing device has the advantages of accurately testing the test waveforms of the converter valve and providing reliable test data for the improvement of the performance of the converter valve along with simple structure and easy realization. In addition, the device and the method are applied to various tests of the converter valve connected with high-power thyristors in series, and provide powerful guarantee for the independent research and development of the converter valve.
Owner:XIAN HIGH VOLTAGE APP RES INST CO LTD

Process for treating spraying granulation aerosol smoke of fermentation waste liquor and dregs in pharmaceutical industry

The treatment paths for the fermentation waste liquor and dregs in the prior pharmaceutical industry comprise concentration and spraying granulation for the fermentation waste liquor and dregs to form organic and inorganic fertilizers, realize the resource utilization of wastes, govern the pollution, and bring great profits for enterprises. But serious smoke pollution is generated in the process of spraying granulation, and becomes one of main factors for restricting the healthy development of the enterprises. The process carries out independent research and development, determines the property of pollution smoke which is aerosol granular pollutant of VOCs wrapped water molecules, analyzes the components of the smoke through the PT-GC-MS analysis technology, and invents a method for governing spraying granulation aerosol smoke pollution. The process flows of the process comprise Venturi washing of aerosol smoke, primary spray tower washing, secondary spray tower washing and treatment of an electrostatic treater; and the organic substance treatment efficiency of the aerosol smoke reaches more than 95 percent. The treatment process has the main characteristics of high treatment efficiency, low energy consumption and simple operation.
Owner:李海燕

Integrated technology used for preparing environment-friendly bricks from industrial hazardous waste sludge

The invention provides an integrated technology used for preparing environment-friendly bricks from industrial hazardous waste sludge. The integrated technology used for preparing environment-friendlybricks from industrial hazardous waste sludge comprises steps of raw material storage, feeding, burning, and brickmaking, and more specifically, dehydrated industrial hazardous waste sludge is subjected to drying in a drying furnace, and is subjected to burning in a rotary kiln, furnace slag obtained through burning is mixed with sand and cement, and an obtained mixture is prepared into baking-free environmental-friendly bricks. According to the integrated technology, industrial hazardous waste sludge is subjected to harmlessness treatment, and brickmaking is carried out. The integrated technology is invented through independent research and development, a complete harmless resource recycling production line is invented based on utilization of industrial hazardous waste sludge; the obtained baking-free environmental-friendly bricks are subjected to environment protection detection, harmless or resource recycling treatment, or sailing or landfill are carried out based on monitoring results, so that complete harmless and resource recycling of industrial hazardous waste sludge is realized, and waste is changed into valuables.
Owner:天津诚天环境工程有限公司 +1

Marine carbon fiber composite large lateral oblique propeller blade and design method thereof

The invention discloses a design method for a marine carbon fiber composite large lateral oblique propeller blade. The design method comprises the steps that a mother type metal blade of a carbon fiber composite large oblique blade is designed; a lay-up setting scheme of carbon fiber lamination units is determined; a solid geometric model of a single carbon fiber composite large oblique blade is generated by stacking the obtained results, and then solid geometric models of a plurality of carbon fiber composite large oblique blades are obtained by circumferential rotational replication; if therequirements are not met, the angle of layer, the lay-up sequence and the lay-up thickness are modified; and the model of the marine carbon fiber composite large lateral oblique propeller blade is determined. The invention further discloses a marine carbon fiber composite large lateral oblique propeller blade. According to the design method for the marine carbon fiber composite large lateral oblique propeller blade and the marine carbon fiber composite large lateral oblique propeller blade, gaps in the technology in China can be filled effectively, even design specifications can further be formed, and the independent research, popularization and application of marine high-performance composite blades in China are promoted strongly. The design method is also applied to the design of jet pumps and jet pump blades of composite.
Owner:NAVAL UNIV OF ENG PLA

Solvent-free catalytic hydrogenation method for preparation of 2,4-dichloro-5-isopropoxy aniline

The invention especially discloses a solvent-free method for hydrogenation preparation of 2,4-dichloro-5-isopropoxy aniline from 2,4-dichloro-5-isopropoxy nitrobenzene, belonging to the field of catalytic hydrogenation production. The method uses 2,4-dichloro-5-isopropoxy nitrobenzene as a raw material and is characterized in that 2,4-dichloro-5-isopropoxy nitrobenzene reacts with hydrogen at a temperature of 80 to 100 DEG C and a pressure of 0.3 to 2.5 MPa in the presence of a catalyst and an auxiliary agent, no solvent is added, and water is separated after completion of the reaction so as to obtain chloroaniline. The catalyst is a noble metal catalyst prepared through independent research and development, and the usage amount of the catalyst is 0.05 to 20% of the mass of 2,4-dichloro-5-isopropoxy nitrobenzene; the auxiliary agent is a mixture of ethanolamine and pyridine, and the usage amount of the auxiliary agent is 0.01 to 10% of the mass of 2,4-dichloro-5-isopropoxy nitrobenzene; and chromatographic purity of obtained 2,4-dichloro-5-isopropoxy aniline is 99.5% or above, a dechlorination amount can be controlled within 0.1%, a conversion rate is 100%, and yield is 95% or above.
Owner:济南和润化工科技有限公司

Device for measuring deformation of relieved end roller of bearing under load

Provided is a device for measuring the deformation of a relieved end roller of a bearing under load. The invention relates to a device for measuring the deformation of a roller under load, and aims to solve the problem that the independent research and development of roller bearings based on working environment is restricted as there is no experimental basis for bearing roller profile modification design in the prior art. The device comprises a test bench body, a hydraulic loading system, a pressure plate, a support plate, a controller, a data recorder, and a plurality of optical fiber sensors. The test bench body comprises a base, a beam, a support platform, and two support columns. The two support columns are vertically installed on the upper end face of the base. The beam is arranged on the two support columns. The support platform is installed on the base between the two support columns. The hydraulic loading system is fixedly installed on the lower end face of the beam. The pressure plate is installed at the bottom of the hydraulic loading system. The multiple optical fiber sensors are uniformly installed on the pressure plate along the circumferential direction. The data recorder is installed on the controller. The device is used in the field of roller deformation measurement under load.
Owner:AVIC HARBIN BEARING

Human colon cancer extracellular matrix in-vitro model and preparation method thereof

The invention provides a human colon cancer extracellular matrix in-vitro model and a preparation method thereof. The model is a freeze-dried sterile porous membrane without cytotoxic substance residues; and in the model, the cell components are completely removed, and the components and structure of the extracellular matrix are completely maintained. The preparation method comprises the following steps: taking a human colon cancer or rectum cancer tissue which is exsomatized within 4 hours, and carrying out pretreatment; sterilizing in a constant-temperature oscillating table by using a low-concentration peroxyacetic acid-ethanol solution; cleaning with a 5-100 mmol / L sodium hydroxide solution in a constant-temperature ultrasonic cleaner with an oscillatory cleaning tank for 30-90 minutes to perform decellularization; putting the material in a freeze drier, and carrying out freeze-drying forming according to a predesigned freeze-drying process; and packaging in a sterile state. According to the method, the colon or rectum cancer extracellular matrix is separated for independent research to construct the model outside the ideal body and inside the animal body for colon or rectum cancer microenvironment and EMT research.
Owner:BEIJING CHAOYANG HOSPITAL CAPITAL MEDICAL UNIV

Automobile safety seat capable of realizing underwater self-help rescue based on independent research and development

InactiveCN112026608ATo achieve the purpose of oxygen supplyTo achieve the purpose of inflatingVehicle seatsLife-buoysMarine engineeringAutomobile safety
The invention discloses an automobile safety seat capable of realizing underwater self-help rescue based on independent research and development. The automobile safety seat comprises an automobile safety seat body, the automobile safety seat body comprises a seat main body and a seat back cushion movably installed over the seat main body, and a cambered surface butt joint groove is machined and formed in the top of the seat main body, and two groups of mounting ports are symmetrically arranged in the cambered surface butt joint groove. The seat back cushion is composed of a back cushion shell,a pop-up mechanism, a self-rescue device and a crushing rod, a containing groove is machined and formed in the back cushion shell, and a cambered surface butt-joint protruding block used in cooperation with the cambered surface butt-joint groove is machined and formed at the bottom of the back cushion shell. The invention designs the safety seat device special for the self-rescue of people in theautomobile falling in a river, the self-rescue device located inside can be popped up through the pop-up mechanism, air is stored in an air bag in the self-rescue device, and the air bag can be brought out of the water surface together with a breathing head under the action of buoyancy of the air bag; and the purpose of supplying oxygen to underwater personnel can be achieved.
Owner:滁州市汊河之星高新技术研发有限公司

Single-wave fault current testing device of converter valve running test and testing method

ActiveCN101937059AAccurate detection of test waveformsImprove performanceCircuit interrupters testingEngineeringVoltage source
The invention discloses a single-wave fault current testing device of a converter valve running test and a testing method. The device comprises a generator loop, wherein the generator loop comprises a short-circuit generator, a circuit breaker, a reactor L, a resistor and a primary side of a step-up transformer, which are sequentially connected in series; the secondary side of the step-up transformer is connected with a tested converter valve in parallel, and a low-potential end of the secondary side of the step-up transformer is grounded; and the tested converter valve is also connected witha current source and a voltage source and respectively connected with the output ends of the current source and the voltage source to form a loop. The device is used for checking the converter valve as key equipment in a direct current transmission system, has the advantages of simple structure and easy realization, can be used for precisely detecting the test waveform of the converter valve and provides reliable test data for improving the property of the converter valve. The invention is suitable for tests of various converter valves connected with high-power thyristor devices in series andprovides powerful guarantee for the independent research and development of the converter valves.
Owner:XIAN HIGH VOLTAGE APP RES INST CO LTD

Control method for spontaneous combustion of coal gangue

The invention discloses a control method for spontaneous combustion of coal gangue. The method includes the following steps: step (1) removing combustible materials inside the coal gangue; step (2) mixing coal gangue + fly ash + calcium carbide slag + independent research and development high-efficiency fly ash activator according to a proportion; step (3) uniformly stirring and placing to make coal gangue concrete; step (4) constructing a template, and pouring by utilizing the coal gangue concrete after completion of the construction; step (5) performing layered pouring as needed, placing reinforcing steel bars between each of layers to perform fixation between the layers; step (6) laying geotextile cloth to reinforce a wall body; and step (7) beautifying appearance of a constructed building, such as moulding and greening. Compared with the prior art, the control method has the advantages of achieving high strength and acid and alkali corrosion resistance, effective isolating necessary conditions for the spontaneous combustion of the coal gangue such as air, rainwater, and the like, completely solving the problems of the spontaneous combustion and dust of the coal gangue, truly achieve treatment of industrial solid waste with industrial solid waste, and being of great significance to environmental management of mines in China.
Owner:马树立

Normal-temperature-cured polytetrafluoroethylene-modified high-solid-content automobile varnish and preparation method thereof

ActiveCN106085171AImprove performanceRealize the requirements of room temperature curingPretreated surfacesPolyurea/polyurethane coatingsPolymer scienceAcrylic resin
The invention provides a preparation method for a normal-temperature-cured polytetrafluoroethylene-modified high-solid-content automobile varnish. The preparation method is characterized by comprising a step of mixing main paint, a curing agent and a diluent according to a mass ratio of 100: 50: (10-15), wherein the main paint is prepared by mixing 40 to 59 parts of mixing monomer, 1 to 5 parts of an initiator and 40 to 60 parts of a mixed solvent under stirring in the presence of nitrogen and then adding 3 to 5 parts of modified transparent oily polytetrafluoroethylene resin drop by drop; the curing agent is prepared by mixing 50 to 60 parts of polyisocyanate, 30 to 40 parts of butyl acetate and 10 to 20 parts of propylene glycol methyl ether acetate; and the diluent is prepared by mixing 50 to 60 parts of butyl acetate with 40 to 50 parts of propylene glycol methyl ether acetate. According to the invention, the liquid polytetrafluoroethylene resin prepared on the basis of independent research and development is added into hydroxyl-acrylic resin, so the prepared automobile varnish has the excellent properties of super self-cleanness, high hardness, super smoothness, weatherability, etc.
Owner:TIANJIN YIMA PROTECTION MATERIAL CO LTD

A fully automatic production line for power lithium batteries and its production process

The invention relates to a full-automatic production line of a power type lithium battery and a production process thereof. It is mainly composed of pole piece production unit, battery assembly unit, battery liquid injection unit and delivery processing unit. The electrical control system of key equipment of each unit is composed of PLC, industrial computer, hydraulic and pneumatic components. The computer collects data and realizes the functions of storing and reading data of the whole line. The main effect is reflected in: the mutual matching of the production efficiency of each unit is realized through the key adjustment of the production parameters, and the conveyor belt is used in the intermediate link, which finally realizes the full automation of the production process; the production line is compatible with the production requirements of multi-standard batteries, and the product change only needs to be adjusted The production can be realized by changing the equipment parameters and part of the tooling and fixtures, meeting the order-based production requirements of the products; the key equipment and technical processes involved in the line are all independently developed, reliable and stable in operation, and have a high cost performance.
Owner:东营黄蓝知识产权运营管理有限公司

Electron beam welding process for heavy duty gas turbine compressor rotor and turbine assembly

The invention discloses an electron beam welding process for a heavy duty gas turbine compressor rotor and a turbine assembly, which is characterized by an empirical calculating formula of a margin ofthe electron beam welding process for the heavy duty gas turbine compressor rotor and the turbine assembly, namely eta=(0.4-0.6)*S*(Wr<2>/Wf*Wm)*10<-n). a, when a big and thick piece made of a 0Cr11Ni2MoNbV material is subjected to electron beam welding, an alloy added to prevent crack defects from being generated is a GH536 plate of which the thickness is between 1.0 and 2.0mm; and b, an empirical calculating formula of a specification of the added GH536 alloy plate is as follows: delta=0.1(S1-B1). The electron beam welding process has the advantages that: the quality of weld seams is qualified; various technical indexes such as dimensional accuracy and the like meet the requirements; particularly, one-time gang welding of 5 to 10-level drums of an air compressor finishes six weld seams,which marks that the independent research and development of a heavy duty gas turbine in China breaks through key manufacturing technology and a core special process for a large gas turbine is mastered; and the technology fills up the domestic blank and achieves the international advanced level.
Owner:SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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