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95results about How to "Achieve continuous output" patented technology

An OCR method based on depth learning

ActiveCN109376658ARealize intelligent extractionEasy accessCharacter recognitionPattern recognitionComputer vision
The invention discloses an OCR method based on depth learning, comprising the following steps of obtaining an image to be recognized; scaling the image to be recognized, and then preprocessing the scaled image, wherein the preprocessing comprises sharpening, graying, binarization, correcting tilt, reducing noise, and removing any one or more items in the official seal; putting the preprocessed image into the depth learning neural network to obtain a plurality of candidate text regions of the scaled image; putting a plurality of candidate text regions of the scaled image into a depth-based learning neural network, and converting the contents of the candidate text regions into computer-readable text; putting the computer-readable text into the deep learning language model to correct the textrecognition results. The method of the invention can realize the intelligent extraction of the text content of the image, provides the service of fast searching and fast obtaining information for thepersonnel of various trades, improves the working efficiency, has high identification field accuracy rate and improves the processing speed.
Owner:SUNYARD SYST ENG CO LTD +1

Piezoelectric hydraulic linear motor

The invention relates to a piezoelectric hydraulic linear motor which pertains to the field of mechanical-electrical-hydraulic integration. An inlet of a piezoelectric pump is connected with an accumulator by a pipeline; the accumulator is also connected with a reversing valve by the pipeline; the reversing valve is connected with an outlet of the piezoelectric pump by the pipeline; the reversing valve is also connected with a cavity body of a hydraulic cylinder. The piezoelectric hydraulic linear motor has the advantages of novel structure, being capable of effectively converting the micro-amplitude reciprocating vibration of piezoelectric ceramic to the micro liner motion of a piston of the hydraulic cylinder by utilizing fluid media to transmit power, obtaining relatively large driving power and motion displacement and realizing precise driving and control by a method of accumulating a liquid drop for one time; meanwhile, the piezoelectric hydraulic motor has simple structure and control, small volume and good sealing property and can be applied to marking parts.
Owner:JILIN UNIV

Gamma chip, display panel driving circuit and display device

The invention discloses a gamma chip, a display panel driving circuit and a display device. The gamma chip comprises a memorizer, a signal generation circuit, N groups of digital-to-analog converters(DAC), N first switch circuits, N operational amplifiers, N second switch circuits, N first charging / discharging circuits and N second charging / discharging circuits; each group of DAC converts a received data gamma signal into an analog gamma signal, each first switch circuit receives two paths of analog gamma signals output by the memorizer, and correspondingly outputs one path of analog gamma signal according to a first control signal and a second control signal; the operational amplifiers are used for amplifying two paths of analog gamma signals, and outputting the amplified analog gamma signals to a source driving chip from the output ends corresponding to the second switch circuits; and meanwhile, N first charging / discharging circuits and N second charging / discharging circuits are arranged to perform charging / discharging according to the analog gamma signals.
Owner:HKC CORP LTD

Full-automatic cast welding process and production line of lead-acid storage battery

The invention relates to a full-automatic cast welding production line of a lead-acid storage battery. The full-automatic cast welding production line comprises a gantry frame, a feeding hand and a processing production line; the processing production line comprises a discharging hand, a cast welding machine, a station switching machine and a groove entering machine, the two ends of the station switching machine are provided with a feeding station and a processing station correspondingly, and the cast welding machine comprises a lead furnace, a cast welding die and a cooling assembly. The invention also provides a full-automatic cast welding process of the lead-acid storage battery. The process comprises the step: step 1, cutting and brushing work; step 2, feeding; step 3, soldering flux adhering; step 4, lead liquid containing; step 5, cast welding processing; step 6, groove entering; and step 7, outputting. The technical problems that feeding and discharging need to be carried out manually in the cast welding process, cannot be tightly connected with the cutting and brushing work, and connection production cannot be realized are solved.
Owner:长兴玖佳机械股份有限公司

Boiled water generator for a continuous watering instant-opening water dispenser

The invention discloses a boiled water generator for a continuous watering instant-opening water dispenser, comprising a boiled water pipe with the lower end connected with an outside water supply tank; the upper end of the boiled water pipe is provided with boiling water outlets and is communicated with a water-vapour separator; the bottom part of the water-vapour separator is provided with boiled water outlets; the outer wall of the boiled water pipe is an external membrane type nonmetallic electrothermal tube with the outer wall provided with an electrothermal membrane; the two ends of the electrothermal membrane can heat the water in the boiled water pipe to lead the boiled water to boil after being electrified; the boiling water outlets of the upper end of the boiled water pipe are arranged in the water vapour separator by height; the top part in the water vapour separator is an inverted V type structure, namely two sides are lower and the middle is higher; and the top part in the water vapour separator is arranged away from the boiled water outlets from high to low. The boiled water generator can effectively avoid scale from condensing, has high heat efficiency, is clean and health, can continuously output boiled water and simultaneously has effect of saving energy.
Owner:陈苏

Isochromatic and isothermic continuous dimming device based on integrating sphere

The invention relates to an isochromatic and isothermic continuous dimming device based on an integrating sphere, comprising the integrating sphere, a light source and a guide way. The integrating sphere is internally provided with a baffle screen; an optical window and a light through hole are arranged on the sphere wall of the integrating sphere; the optical window and the light through hole are respectively arranged at the two sides of the baffle screen; the light source is a movable light source which is arranged on the guide way; and the movable light source is as high as the centre of the light through hole on the wall of the integrating sphere. Under a condition that the light intensity of the movable light source stays the same, according to the low of inverse distance to a power, the invention leads the movable light source to move on the guide way, changes a distance from the light source to the integrating sphere, leads illuminance which is received at the inner wall of the integrating sphere to correspondingly change, and changes a luminance brightness value which is output from the optical window of the integrating sphere, so as to realize isochromatic and isothermic continuous dimming.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Instant-starting instant-heating device for water heater and control method for instant-starting instant-heating device

The invention discloses an instant-starting instant-heating device for a water heater and a control method for the instant-starting instant-heating device. The instant-starting instant-heating device for the water heater comprises a preheating water tank with an electric heating device therein, wherein a water inlet of the preheating water tank is connected with a water outlet tube of the water heater through a water inlet tube; the water inlet tube and the water outlet tube of the water heater are separately connected to the two ends of a temperature control valve; a third end of the temperature control valve is connected to the water outlet tube through a water outlet branch tube; the temperature control valve comprises a valve body; a valve cavity with three valve openings is arranged in the valve body; the three valve openings are separately an inlet connected with the water outlet tube of the water heater, a first outlet connected with the water inlet of the preheating water tank and a second outlet connected with the water outlet branch tube; a first pipeline end socket used for opening or sealing the first outlet is arranged in the valve cavity; and a second pipeline end socket used for opening or sealing the second outlet is arranged at one side of the second outlet. The instant-starting instant-heating device for the water heater realizes the effect that hot water instantly flows out, so that no cold water is discharged and long-time waiting is not needed, and therefore, bathing comfort of a user is improved and waste of water resources is reduced.
Owner:QINGDAO HAIER SMART TECH R & D CO LTD +1

Piezoelectric energy collector applied to road deceleration strip and collection circuit of piezoelectric energy collector

The invention discloses a piezoelectric energy collector applied to a road deceleration strip and a collection circuit of the piezoelectric energy collector, and aims at solving the technical problem of low collection efficiency of an existing piezoelectric energy collector. According to the technical scheme, an impact-type cantilever beam structure is adopted by the collector; when a vehicle drives on the deceleration strip, mechanical energy of the vehicle is converted into electric energy through a piezoelectric material in the collector; and after the vehicle drives off the deceleration strip, a cantilever beam is in a free vibration state with damping and the mechanical vibration is further converted into the electric energy by the piezoelectric material, so that continuous output of the electric energy is achieved. By the matched collection circuit, input impedance can be matched with the impedance of the piezoelectric material during the period of shock and the period of free vibration separately through controlling and changing the switching period and the duty ratio of a DC-DC switching converter, so that electric energy output by the piezoelectric material is maximized. Furthermore, when no electric energy is generated, a piezoelectric energy collection circuit enters a sleep mode with extremely low power consumption, so that the energy is saved and the collection efficiency of the collection system is significantly improved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Continuous high-temperature nitriding furnace

The invention provides a continuous high-temperature nitriding furnace. A thermal insulation material and a fireproof lining, which are made of different materials and of different thicknesses, are constructed in a furnace shell of the continuous high-temperature nitriding furnace in a segmentation mode respectively. A slide way or a rotating roller or a moving object is installed in a reserved strip cavity tunnel to push a slide way pushing plate to move or to push a roller bottom type pushing plate to move or a roller bottom to rotate and move. A gap among the fireproof lining, a sagger and a target object to be burnt is longitudinally divided into two or more belts, a heating element is installed in a gap of a part of the belts, and the other part is a free space. According to the continuous high-temperature nitriding furnace, ceramic products containing carbon, carbide, nitride, boride and metal and other materials easy to oxidize can be sintered in vacuum or a controllable atmosphere, for example a nitrogen atmosphere, a high-pressure atmosphere and a reducing atmosphere. Continuous production of products is achieved, operation efficiency is greatly improved, production capacity is enhanced, the labor environment is improved, the automation degree is increased, energy-saving and cost-reducing effects are significant, and remarkable popularization and application value is achieved.
Owner:蒋明学 +2

Two-track drive tractor proportional steering device

The invention relates to a two-track drive tractor proportional steering device. The two-track drive tractor proportional steering device at least comprises an engine, a vehicle frame, a clutch, tracks, a transmission, a proportional differential steering device and an electronic control system. The proportional differential steering device is integrated on the transmission. The transmission is installed on the engine through the clutch. The engine, the clutch, the transmission, the proportional differential steering device and the electronic control system are installed on the vehicle frame.The tracks are installed on output shafts on the two corresponding sides of the proportional differential steering device. The proportional differential steering device controls a corresponding cornerrelation between a swash plate of a variable pump and a steering wheel of a tractor through the electronic control system, so that a constant displacement motor has infinitely variable speed power output, the constant displacement motor adjusts worm wheels of the proportional differential steering device through control of a worm, a tracked vehicle steers, and the two-track drive tractor proportional steering device has the beneficial effects of being high in steering accuracy, regular and stable in steering motion and the like.
Owner:CHANGSHA SUNLIGHT AGRI MACHINERY FACILITIES

Low-grade heat-driven adsorption type refrigerating and heating pump circulating device adopting chemical reaction and method utilizing same

The invention discloses a low-grade heat-driven adsorption type refrigeration and heat pump circulating device adopting chemical reaction and a method utilizing the same. The device comprises a refrigerant circulation loop, an adsorption loop, an analysis loop and an operating fluid circulation loop. The high-temperature high-pressure gaseous refrigerant ammonia gas and carbon dioxide analyzed byadsorbers enter a chemical reaction cooler to be absorbed by an operating fluid to generate ammonium carbamate, the heat is output, and the product is dissolved in the operating fluid; the mixed solution passes through a heat regenerator, a throttling device and enters a chemical reaction evaporator; the ammonium carbamate is decomposed to generate the ammonia gas and the carbon dioxide, the ammonia gas and the carbon dioxide are evaporated, the cold energy is output, the ammonia gas and the carbon dioxide are adsorbed and analyzed by the adsorbers to form a circulation, and the two adsorbersalternately adsorb and analyze through opening or closing a valve to realize continuous output of cold energy or heat energy. According to the device and the method, the reversible chemical reactionis used for realizing the refrigeration and heating, compared with phase-change refrigeration and heating, the device and the method is higher in performance coefficient, capable of realizing efficient utilization of low-grade heat energy and has no damage to the environment.
Owner:SOUTHEAST UNIV

Double-cylinder type sludge pump with discharging seal switching apparatus

A double-cylinder type sludge pump with a discharging seal switching apparatus comprises a left main driving cylinder. The left main driving cylinder is connected with a left conveying cylinder via awater tank. A piston rod of the left main driving cylinder is connected with a left concrete piston via a left connecting rod. The left concrete piston and the left connecting rod perform reciprocating motion in the left conveying cylinder under the effect of the left main driving cylinder. A right main driving cylinder is connected with a right conveying cylinder via the water tank. A piston rodof the right main driving cylinder is connected with a right concrete piston via a right connecting rod. The right concrete piston and the right connecting rod perform reciprocating motion in the right conveying cylinder under the effect of the right main driving cylinder. A conveyer pipe is connected with the discharging seal switching apparatus. The discharging seal switching apparatus is connected with a left feeding device and a right feeding device. The left feeding device and the right feeding device are connected with a pre-filler. Exit resistance of a pumping system can be reduced, self-abrasion of the equipment during a pumping process can be reduced, equipment cost can be reduced, reliability of the equipment can be improved, and service lifetime of the equipment can be prolonged.
Owner:长沙紫宸科技开发有限公司

Multi-streaming media gateway service system and method

The invention discloses a multi-streaming media gateway service system and method. The system comprises a plurality of uploading terminal devices, a fusion gateway, a streaming media conversion moduleand a playing terminal. The method comprises the steps of uploading a plurality of streaming media, transmitting a data stream and storing the data stream, and dividing the plurality of streaming media into a plurality of region combinations according to marking characteristics or address characteristics, so as to realize the functions of multi-device video live broadcast, recording and playing,continuous output of a plurality of videos and the like in the region. According to the invention, the integrity of streaming media data transmission can be ensured, and the transmission quality and the time delay effect can be ensured under the condition that a large number of receiving ends exist.
Owner:武汉群宇科技有限公司

Continuous-output static-hydrogen compression, storage and filling integration system

The invention provides a continuous-output static-hydrogen compression, storage and filling integration system and belongs to the technical field of hydrogen fuel. The integration system includes a hydrogen source input device, a filling device and at least one hydrogen boosting and storage unit, wherein each hydrogen boosting and storage unit includes a static-hydrogen compression device and a pressurized-hydrogen storage device; the static-hydrogen compression device correspondingly communicates with a hydrogen source input device and the pressurized-hydrogen storage device; and the pressurized-hydrogen storage device further communicates with the inlet end of the filling device or the hydrogen inlet end of the next static-hydrogen compression device. The integration system has no movingparts, completely uses a heat driving method to realize the pressurizing of hydrogen, has compact and quiet design, high reliability and low risk of leakage, can simultaneously improve the purity ofhydrogen in the process of compression, and realizes the continuous output of compressing hydrogen through the hydrogen sucking and discharging method of alternating multiple tanks; and when multiplestages are in parallel operation, the hydrogen compression and conveying capacity of the system is greatly improved and the practicability is improved.
Owner:GUANGDONG INST OF RARE METALS

Image annotation method and device used in three-dimensional simulation, and electronic equipment

The invention discloses an image annotation method and device used in three-dimensional simulation and electronic equipment, and the method comprises the steps: constructing a three-dimensional scene which comprises a target object, a virtual camera and a shielding object; acquiring an image in a visual field range through the virtual camera; judging whether the target object is in the field of view of the virtual camera, and if the target object is in the field of view of the virtual camera, generating a detection point of the target object; and if any one of the detection points is not shielded by the shielding object, marking a target object in the image.
Owner:ZHEJIANG LAB

Interplanting method of root-limited grape and floor stand strawberry

The invention provides an interplanting method of root-limited grape and floor stand strawberry. Reasonable interplanting of the root-limited grape and the floor stand strawberry is a cultivation modewhich is more modernized and intelligent and is a powerful combination, this is because that root systems of the root-limited grape and the floor stand strawberry are not in a same soil space, do notaffect each other and are free of competition for nutrient, and growth of the root-limited grape and the floor stand strawberry can be regulated by controlling water and nutrient through advanced equipment. The root-limited grape and the floor stand strawberry are interplanted for cultivation for the first time to form a root-limited grape and floor stand strawberry interplanting technical scheme, winter dormancy period is put forward creatively, grape trunks are paint-dried to avoid high-temperature dehydration death of facility grape, and accurate water and fertilizer control on each of thegrape and the strawberry can be realized.
Owner:SHANDONG ACAD OF GRAPE

Quote-driven-market system for international foreign exchange market

The invention relates to a quote-driven-market system for an international foreign exchange market. The system comprises a financial calculation engine, a database and a quote combined management system, wherein the database and quote combined management system are built based on the financial calculation engine. The quote-driven-market system is beneficial in that continuous output can be realized; a machine learning part sufficiently considers interest liquidity and monetary liquidity, an interest rate futures derivative characteristic and a non-standard term characteristic; and furthermorebecause a high-speed modular design is utilized, the quote-driven-system realizes better price than Bloomberg foreign exchange quote; the system realizes higher speed than Murex quote; quote price andquote speed are remarkably improved; and furthermore model designing of the financial calculation engine is based on a no-risk hedging principle, and drainage can be performed on quote-driven-marketbehaviors which comprises standard-time quote-driven-market behaviors and non-standard-time quote-driven-market behaviors. Furthermore because the quote-driven-market system provided by the inventionhas no similar project or product or service in China, the quote-driven-market system has uniqueness, monopolistic property and high threshold.
Owner:来噻信息技术(上海)有限公司

Seawater desalination and ice storage coupling system

The invention provides a seawater desalination and ice storage coupling system which comprises a centrifugal machine, the centrifugal machine comprises a box body, a cover body, a rotary drum, a centrifugal motor, a spiral scraper and an operating mechanism, a centrifugal liquid inlet hole is formed in the cover body, a plurality of through holes are formed in the side wall of the rotary drum, the upper end of the spiral scraper is fixedly connected or integrally connected with a discharging rod, the cross section of the discharging rod and the cross section of the spiral scraper are both in a V shape or a U shape, the upper portion of the box body is provided with a centrifugal discharging hole connected with the discharging rod, and the lower portion of the box body is provided with a drainage hole communicated with an inner cavity of the box body. By arranging the spiral pipeline and the discharging rod, ice crystals can be completely extracted under the condition that the centrifugal machine does not stop working, the efficiency is relatively high, ice obtained after centrifugal desalination is stored, cold energy is transferred in time and space, electricity generated by renewable energy can be effectively consumed, and arbitrage can be carried out according to the difference between peak electricity and off-peak electricity.
Owner:QUANZHOU INST OF EQUIP MFG

Rubber additive particle surface powder separating device

The invention discloses a rubber additive particle surface powder separating device which comprises a cyclone separator, a charging barrel, a hopper, a core shaft, a driving rod and a speed reducer, wherein the charging barrel is horizontally arranged at the bottom of the hopper; the core shaft is concentrically arranged in the charging barrel; a storage hole is vertically formed in the core shaft; a first blanking hole corresponding to the hopper is formed in the top of the charging barrel; a second blanking hole staggered with the first blanking hole is formed in the bottom of the charging barrel; the driving rod is arranged at the front end of the core shaft and extends to the outer side of the charging barrel; a connecting rod perpendicular to the driving rod is arranged at the end part of the driving rod; a kidney-shaped hole is formed in the connecting rod in the axial direction; a rotary disc is arranged on the output shaft of the speed reducer; and a rotary shaft extending intokidney-shaped hole is arranged on the rotary disc. Through the manner, the rubber additive particle surface powder separating device realizes clearing and continuous output of surplus powder on the surface of rubber additive particles to improve the production efficiency.
Owner:SUZHOU SHUOHONG POLYMER MATERIALS CO LTD

Three-primary colors based dyeing and variable-frequency color change magnetic control device of 3D printer

The invention discloses a three-primary colors based dyeing and variable-frequency color change magnetic control device of a 3D printer, and belongs to the technical field of printing devices. The device comprises three ink boxes. The device is characterized by further comprising a printing head assembly, a dyeing chamber which is connected to the rear end of the printing head assembly, and a feeding pipe which is connected to the dyeing chamber, wherein three magnetic coil assemblies are arranged on the dyeing chamber in a communication manner and are correspondingly connected to the ink boxes through guide tubes; silk materials are stored in the printing head assembly and penetrate the dyeing chamber and the feeding pipe. When in use, red ink, yellow ink and blue ink are correspondinglystored in the three ink boxes; the specific dyeing mode comprises the steps of inputting square wave control signals to the magnetic control coil assemblies so as to control the magnetic field direction of the magnetic control coil assembly to an oscillating magnetic field in which N pole and S pole are repeatedly exchanged; outputting ink in the dyeing chamber through a magnetic induction coil assembly; melting and combining through the printing head assembly; and finally outputting and printing.
Owner:SICHUAN CHANGHONG ELECTRIC CO LTD

Novel vertical temperature-controllable sawdust hot-air generator

The invention relates to a novel vertical temperature-controllable sawdust hot-air generator. The novel vertical temperature-controllable sawdust hot-air generator comprises a combustion furnace body, a feeding system, an air supply and distribution system and a hot air delivery and purification system. The combustion furnace body comprises an outer steel furnace body shell and a furnace body lining. The feeding system is arranged on the lower portion of the combustion furnace body in a matched mode and feeds fuel into the combustion furnace body through a fuel inlet. The air supply and distribution system comprises an air distribution fan, an air pipe and an electric adjustment butterfly valve. The air distribution fan is arranged on the lower portion of the outer side of the combustion furnace body and connected with the outer steel furnace body shell in a matched mode through the air pipe. According to the novel vertical temperature-controllable sawdust hot-air generator, the wide application range of fuel can be achieved, the fuel is directly combusted and then crushed into semi-finished fuel, and the price of the fuel is low; and the fuel is basically biomass fuel, the environment protection effect is good, the number of pieces of smoke purification equipment used in the subsequent stage is small, and one-time investment cost and operation and maintenance cost of the equipment are low.
Owner:ZHENGZHOU DINGLI NEW ENERGY TECH

Reaction tube feeding mechanism

The invention discloses a reaction tube feeding mechanism. The reaction tube feeding mechanism comprises a hopper, wherein a mounting hole is formed in the bottom of an inner cavity of the hopper, a pushing plate is slidably arranged in the mounting hole, and a driving assembly used for driving the pushing plate to move up and down is arranged at the lower end of the hopper; an accommodating groove for accommodating reaction tubes is formed in the upper end of the pushing plate, and the upper end surface of the accommodating groove serves as an inclined surface which is inclined outwards along the interior of the hopper; when the pushing plate moves downwards to the lowest point, the reaction tubes in the hopper enter the accommodating groove and are arranged in the vertical direction, and limiting lugs on the outer side walls of the upper ends of the reaction tubes abut against the upper end face of the accommodating groove; and when the pushing plate ascends to a first preset height, the reaction tubes in the accommodating groove slide along the inclined surface and are conveyed to a next station. The reaction tube feeding mechanism is simple in structure, high in efficiency and high in automation degree.
Owner:宁波美康盛德生物科技有限公司

Horizontal stirring machine

The invention provides a horizontal stirring machine. The stirring machine comprises a stirring tank, a stirring device is arranged in the stirring tank, a first power system for driving the stirringdevice is arranged outside the stirring tank, and the stirring device is provided with a feeding channel and a discharging channel; one end of the stirring tank is provided with a premixing device communicated with the stirring tank, a buffering tank communicated with the stirring tank is arranged above the stirring tank, the stirring device is axially disposed in the stirring tank, the feeding channel is located on the premixing device, the discharging channel is located at the end, away from the premixing device, of the stirring tank, and the stirring tank is obliquely arranged; the stirringdevice includes a rotating shaft, a spiral blade disposed on the rotating shaft and a plurality of column bodies laterally disposed along a spiral path of the spiral blade at intervals. According tothe stirring machine, not only can a mixed material body be fully mixed, but also the mixed material body can be fully dispersed and stirred, and under the cooperation of technical features such as multiple stirring chambers and flow limiting holes, self-adhesion of a multi-component high-adhesion material in a stirring process is prevented, so that the problem that the multi-component high-adhesion material is stirred nonuniformly is solved.
Owner:重庆市智翔铺道技术工程有限公司

Level-custom multi-protocol digital audio signal generating system and method

The invention discloses a level-custom multi-protocol digital audio signal generating system, comprising an upper computer, an FPGA (field programmable gate array) and a digital-analog converter; the upper computer is connected with the FPGA that is connected with the digital-analog converter; the FPGA includes a status code storage, a waveform generating module, an amplitude adjusting module, a data coding module, a clock division module and a protocol output module. The level-custom multi-protocol digital audio signal generating system has the advantages that a hardware circuit capable of implementing various digital audio protocol standards is established, output logic level is customizable, and quantitative test analysis can be provided for logic level compatibility of a device under test.
Owner:THE 41ST INST OF CHINA ELECTRONICS TECH GRP

Preparation method and application of copper modified molecular sieve catalyst

The invention discloses a preparation method of a copper modified molecular sieve catalyst applied to preparation of methanol by selective oxidation of methane, which comprises the following step of placing a certain amount of molecular sieve catalyst sample in a quartz tube of a fixed bed reactor, introducing inert gas, and pretreating at 500 DEG C, cooling to a reaction temperature, introducing a reaction gas mixture of methane, water vapor and oxygen in a certain proportion into the fixed bed reactor, reacting at 200-400 DEG C, introducing a product into a gas chromatograph for analysis and detection, preferably, enabling the selectivity of methanol to be 93%, and the yield to be 184 mol / kgcat / h. The copper modified molecular sieve catalyst provided by the invention is Cu / SAPO-34 which is synthesized in situ by utilizing a one-step method and controls the gradient change of the content of loaded metal copper. The molecular sieve catalyst obtained by the invention has the characteristics of simple synthesis process, good hydrothermal stability and excellent catalytic performance. When the catalyst is applied to methanol preparation through methane oxidation, continuous production of methanol can be realized, the reaction process is simple, the process is green and economical, the methanol yield is high, and the industrial application value is high.
Owner:NANKAI UNIV

Environment-friendly crimping device and method for recycled polyester staple fibers

The invention belongs to the technical field of polyester fiber processing, and aims to solve the problems that an existing crimping device performs crimping operation on fibers only through pushing and extruding of a crimping wheel and a crimping knife, the fibers cannot be effectively heated, the crimping effect of the fibers is poor, the product quality is poor, the fibers cannot be cleaned, and adverse influence is caused to the quality of the product. The environment-friendly crimping devicecomprises a crimping roller assembly, and the crimping roller assembly is arranged between two sets of vertical plates; and a crimping cutter is arranged between the two sets of vertical plates. A cleaning assembly is arranged to remove impurities and dust on the surface of the polyester fibers, cleanliness of the polyester fiber is guaranteed, and improvement of the product quality is facilitated; and a steam preheating box is arranged to conduct steam heating on the polyester fibers, the subsequent crimping operation effect is remarkably improved, and the overall using effect of the crimping device is further improved.
Owner:ANHUI DONGJIN RESOURCE REGENERATION SCI & TECH

Electromagnetic field test platform for simulating power grid event disturbance

The invention provides an electromagnetic field test platform for simulating power grid event disturbance. The electromagnetic field test platform comprises a power supply module, a comprehensive control and display module, a phase control module, a power frequency electric field generation module, a power frequency magnetic field generation module, an impact magnetic field generation module and awaveform measurement module, the power supply module provides a high-power power supply for the simulation generation platform; the comprehensive control and display module controls generation of a power frequency electric field, a power frequency magnetic field and an impact magnetic field and displays parameters such as an output voltage value, a current value and a phase in a centralized manner; the phase control module controls the impact magnetic field generation module to output an impact magnetic field, a power frequency magnetic field and a power frequency electromagnetic field to output at any superimposed phase; and the waveform measurement module realizes synchronous measurement of power frequency high voltage, power frequency current and impulse current waveforms. According tothe invention, simultaneous output of a power frequency electric field, a power frequency magnetic field and an impact magnetic field can be simulated, the impact magnetic field and the power frequency electromagnetic field can be superposed at any phase, and the electromagnetic field environment requirement of an online monitoring device or a live detection instrument during laboratory calibration is met.
Owner:STATE GRID CORP OF CHINA +3

Pulp washer

The invention discloses a pulp washer, and belongs to the technical field of pulping equipment. The pulp washer comprises a rotating drum, wherein the rotating drum is driven by a power device to rotate in an axial direction; two ends of the rotating drum are sealed; a plurality of leaking holes are formed in the rotating drum; a filtering net is fixedly mounted on the inner surface of the rotating drum; a conveying channel of which the position is fixed is mounted inside the rotating drum; the conveying channel extends outside one end of the rotating drum; the conveying channel comprises a pulp feeding channel and a pulp discharge channel which are not communicated with each other; a plurality of pulp distributors facing to the filtering net are arranged below the conveying channel; the pulp distributors are communicated with the pulp feeding channel; a pulp collecting tank is arranged above the conveying channel; the upper end of the pulp collecting tank is opened and faces to the filtering net positioned above the conveying channel; the pulp collecting tank is communicated with the pulp discharge channel; a blowing tube is arranged above the rotating drum; and a plurality of nozzles corresponding to the leaking holes are arranged on the blowing tube. Not only is the filtering net damage rate low, but also pulp can be conveniently collected, and the pulping efficiency is high, so that the pulping cost can be lowered. The pulp washer can be widely used in the pulping industry.
Owner:李风志

Intelligent conveying equipment for medical artificial board surface decorative paper

InactiveCN111086901ARealize automatic replacementAutomatic replacement ensuresWebs handlingCardboardIndustrial engineering
An intelligent conveying equipment for medical artificial board surface decorative paper comprises a box body with an opening at one side, a paper passing opening is formed in the lower part of the other side of the box body, inclined paper storage plates are fixedly installed at the front and the back of the opening side of the box body through supports, a plurality of decorative paper rollers are uniformly placed on the top surfaces of the paper storage plates, two C-shaped supports with openings towards the opening side of the box body are fixedly installed in the box body through support rods and distributed at the front and the back, a group of conveying rollers in the front-back direction are arranged between two horizontal parts of each C-shaped support, and each group of conveyingrollers comprises two conveying rollers which are distributed at the left and right and are parallel to each other. The intelligent conveying equipment for medical artificial board surface decorativepaper is simple in structure, the decorative paper rollers are conveyed by adopting a structure that each C-shaped support corresponds to one group of conveying rollers, the decorative paper rollers are conveyed in sequence by adopting semi-cylindrical through grooves, and the continuous output of decorative paper is ensured. In addition, the automation degree is high, the decorative paper rollersare replaced automatically, manual replacement is not needed, time and cost are saved, the labor cost is reduced, and the production efficiency is improved.
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY

Isolating valve of oil pump

The invention relates to an isolating valve of an oil pump. The isolating valve of the oil pump is characterized by comprising a lower valve seat (1), a valve sleeve (2), an upper valve seat (3), two valve elements (4) and springs (5), wherein the lower valve seat (1) and the upper valve seat (3) are correspondingly arranged at two ends of the valve sleeve (2); a mechanical pump branch (P1) and an electric pump branch (P2) are correspondingly connected to two ends of the valve sleeve (2); the two valve elements (4) are arranged in the valve sleeve (2) and can move along the inner wall of the valve sleeve (2); the springs (5) are arranged between the two valve elements (4); a mechanical pump branch oil outlet (A1) and an electric pump branch oil outlet (A2) are processed in the wall surface of the valve sleeve (2); the valve elements (4) are of circular barrel shaped structures and arranged in a port-to-port manner; the springs (5) are arranged in circular barrels of the two valve elements (4). The isolating valve of the oil pump is simple in structure, high in flow rate, fast to respond, high in reliability, and low in cost; two switches are provided; the valve elements can act without external control; the isolating valve is suitable for mass production.
Owner:奇瑞控股集团有限公司
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