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79results about How to "Not easy to overheat" patented technology
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Cooling system and control method thereof
ActiveCN108775721AAvoid condensationAdequate cooling capacityMechanical apparatusCompression machines with non-reversible cycleFrequency changerComputer module
Owner:GREE ELECTRIC APPLIANCES INC
Catalyst for removing traces of oxygen in catalytic cracking dry gas
ActiveCN101745391AImprove anti-poisoning performanceImprove stabilityDispersed particle separationMetal/metal-oxides/metal-hydroxide catalystsActivated carbonActive component
The invention provides a catalyst for removing traces of oxygen in catalytic cracking dry gas, which is characterized in that the catalyst contains catalytic active components and a carrier, wherein the catalytic active components consist of main catalytic active components and auxiliary catalytic active components; the main catalytic active components are palladium; based on the weight of the catalyst, the palladium content is 0.01 to 0.5 percent; the auxiliary catalytic active components are one or more of Ag, Au, Co and Cr; the content of the auxiliary catalytic active components is 0.05 to 1.0 percent; the carrier is alumina, activated carbon, silica or zeolite; and the catalytic active components are distributed in an eggshell-like state on the surface of the carrier. The catalyst has the deoxidation depth up to 0.1 ppm at high space velocity, and has the characteristics of strong anti-poisoning capability, reaction bed insusceptible to temperature runaway, and the like.
Owner:CHINA PETROLEUM & CHEM CORP +1
Catalyst for direct preparation of low carbon olefin from synthesis gas and preparation method thereof
ActiveCN104226329AHigh weight selectivityNot easy to overheatHydrocarbon from carbon oxidesMetal/metal-oxides/metal-hydroxide catalystsSyngasActive component
The invention relates to a catalyst for direct preparation of low carbon olefin from synthesis gas and a preparation method thereof, mainly solves the problems that a strong exothermic Fischer-Tropsch synthesis reaction in the prior art causes difficult heat removal and easy temperature runaway, easy deactivation of catalyst, low weight selectivity of low carbon olefin when a fixed bed reactor is used. The catalyst provided by the present invention comprises the following components by weight: a) 10-70 parts of a carrier, the which is at least one selected from the group consisting of oxides of Mg and Ca; b) 30-90 parts of an active component, which contains, by atomic ratio, a composition with chemical formula of Fe100AaBbCcOx, wherein A is selected from Mn and Mo, B is selected from Ga and In, and C is selected from an alkali metal. The technical scheme well solves the problem and is applicable to industrial production of Fischer-Tropsch synthesis of low carbon olefins.
Owner:CHINA PETROLEUM & CHEM CORP +1
Load type manganese and copper series deoxidizer and preparation method and application thereof
ActiveCN101703919AMaintain deoxidation performanceHigh mechanical strengthOther chemical processesAluminium silicatesHigh concentrationIon exchange
The invention discloses a preparation method and application of a load type manganese and copper series deoxidizer. The load type manganese and copper series deoxidizer comprises a carrier and an active compound oxide, wherein the carrier is alumina and X-type or Y-type molecular sieves; the active compound oxide comprises a copper oxide, a manganese oxide and a metal assistant oxide; the spherical alumina carrier can be directly soaked with a mixed solution of an active component to obtain the strip-shaped deoxidizer; and the powder of the X-type or Y-type molecular sieve needs to carry out ion exchange firstly and then is kneaded with the mixed solution of the active component and a binding agent, extruded into strips and roasted to obtain the formed strip-shaped deoxidizer. The formed strip-shaped deoxidizer needs to be reduced and activated at certain temperature when in use, can not only remove the tiny oxygen contained in inert atmosphere, but also continuously remove the tiny oxygen contained in higher-concentration to high-purity carbonic oxide, and has high mechanical strength, difficult pulverization in the using process and difficult temperature runaway of pretreatment reduction.
Owner:BEIJING PEKING UNIV PIONEER TECH
Catalyst for synthesis of low carbon olefins and its preparation method
ActiveCN103933989AHigh weight selectivityHigh selectivityLiquid hydrocarbon mixture productionMetal/metal-oxides/metal-hydroxide catalystsActive componentFixed bed
The invention relates to a catalyst for Fischer-Tropsch synthesis of low carbon olefins and its preparation method, and mainly solves the problems of easy deactivation of catalysts and low weight selectivity of low carbon olefins for the reason that Fischer-Tropsch synthesis reactions in the prior art are strongly-exothermic reactions, and when a fixed bed is used, heat is difficult to remove from a reactor, and temperature runaway is easy. The catalyst comprises the following components by weight: a) 10 to 70 parts of a carrier which is at least one selected from the group consisting of oxides of Si or Ti ; and b) 30 to 90 parts of an active component. The active component contains, by atomic ratio, a composition with a chemical formula shown as follows: Fe100AaBbCcOx, wherein A is selected from one of Ba or Sr; B is selected from one of Co or Ni; C is selected from an alkali metal; and by the technical scheme, the problems of easy deactivation of the catalysts and low weight selectivity of the low carbon olefins can be solved, and the catalyst can be used for the industrial production of Fischer-Tropsch synthesis of the low carbon olefins.
Owner:CHINA PETROLEUM & CHEM CORP +1
Fluidized bed catalyst for directly preparing low-carbon olefins from synthesis gas and producing method thereof
ActiveCN103962148AHigh selectivityFast response to heat removalLiquid hydrocarbon mixture productionMetal/metal-oxides/metal-hydroxide catalystsPtru catalystFluidized bed
The invention relates to an iron-based fluidized bed catalyst for directly preparing low-carbon olefins from a synthesis gas and a producing method of the iron-based fluidized bed catalyst. The iron-based fluidized bed catalyst and the preparing method mainly solve the problems that in the existing low-carbon olefin Fischer-Tropsch synthesis technology, the reaction heat removal of a fixed bed is difficult, and the temperature runaway can easily occur, so catalysts can be easily inactivated, and the weight selectivity of the low-carbon olefins is low. Through the technical scheme that the iron-based fluidized bed catalyst comprises the following ingredients in parts by weight: (a) 10 to 70 parts of carriers: the carriers are selected from either zinc oxide or zirconium oxide; (b) 30 to 90 parts of active ingredients: the active ingredients comprise the following compounds with the chemical formula being Fe100AaBbCcOx according to the atomic ratio, wherein A is either V or Ti, B is either Mo or Bi, and C is alkali metal, the problems are perfectly solved. The iron-based fluidized bed catalyst and the preparing method can be used for industrial production of low-carbon olefin direct Fischer-Tropsch synthesis.
Owner:CHINA PETROLEUM & CHEM CORP +1
Valve bush carbonitriding thermal treatment process for high-pressure common rail
InactiveCN105154894AReduce labor timeReduce critical cooling rateSolid state diffusion coatingFurnace typesThermal treatmentNitrogen
The invention provides a valve bush carbonitriding thermal treatment process for a high-pressure common rail. The process mainly solves the problems that an existing valve bush is poor in abrasion resistance, low in dimensional accuracy and short in service life. The process includes the steps of firstly, stress relief annealing, secondly, carbonitriding, thirdly, quenching treatment, fourthly, washing and drying, fifthly, freezing treatment and sixthly, tempering treatment. By the adoption of the valve bush carbonitriding thermal treatment process, the abrasion resistance of the valve bush is reinforced, the size accuracy of the valve bush is improved, and the service life of the valve bush is prolonged.
Owner:SHANDONG LIAOCHENG DERUN EMT DEVING
Iron-based catalyst for synthesizing low carbon olefin, and preparation method thereof
ActiveCN104107699AHigh weight selectivityNot easy to overheatHydrocarbon from carbon oxidesMetal/metal-oxides/metal-hydroxide catalystsActive componentAlkali metal
The invention relates to an iron-based catalyst for the Fischer-Tropsch synthesis of low carbon olefin, and a preparation method thereof, and mainly solves the problems of easy inactivation and low mass selectivity of the target product low carbon olefin of catalysts in the Fischer-Tropsch synthesis of low carbon olefin in the prior art. The catalyst comprises 10-70 parts by weight of a carrier and 30-90 parts by weight of an active component, the carrier is at least one selected from Si and Ti oxides, the active component contains a composition with the chemical formula of Fe100AaBbCcOx (in atomic ratio), A is one selected from V and Mn, B is one selected from Cr and Mo, and C is one selected from alkali metals. The iron-based catalyst well solves the problems, and can be used in the industrial production for the Fischer-Tropsch synthesis of low carbon olefin.
Owner:CHINA PETROLEUM & CHEM CORP +1
GTO catalyst used for fluidized bed and preparation method of GTO catalyst
ActiveCN106607037AHigh weight selectivityHigh selectivityMetal/metal-oxides/metal-hydroxide catalystsAlkaline earth metalFluidized bed
The invention relates to a GTO (direct preparation of low carbon olefin from synthetic gas) catalyst used for a fluidized bed and a preparation method of the GTO catalyst. The problem that in the prior art, since the Fischer-Tropsch synthesis is a strong exothermic reaction, when a fluidized bed is used, heat in a reactor is hard to dissipate, so that the temperature is easy to rise, the catalyst is prone to be inactivated, and the weight selectivity of low-carbon olefin is low is mainly solved. The GTO catalyst comprises, by weight part, a) 10-70 parts of a carrier selected from at least one of a Zr or Ti oxide, and b) 30-90 parts of an active component including, based on an atomic ratio, the following composition having a chemical formula of Fe<100>ABC<c>O<x>, wherein A is selected from one of Zn or Cd, B is elected from one of Ga or In, and C is one of alkaline-earth metals. According to the technical scheme, the problem is well solved. The GTO catalyst can be used for industrial production of low-carbon olefin through the Fischer-Tropsch synthesis.
Owner:CHINA PETROLEUM & CHEM CORP +1
Giant magnetostrictive torsional vibration transducer
ActiveCN104578896AHigh output powerLarge amplitudePiezoelectric/electrostriction/magnetostriction machinesVibration amplitudeTransducer
The invention discloses a giant magnetostrictive torsional vibration transducer. The giant magnetostrictive torsional vibration transducer comprises a shell, an output rod, a supporting plate, a plurality of giant magnetostrictive material pieces, a cooling water jacket, a coil framework, a drive coil and a cooling water pipe. An output hole is formed in the shell. An output flange with the central axis coinciding with the central axis of the output rod is arranged on the output rod. The output rod extends out of the shell through the output hole. The supporting plate is arranged in the shell and is spaced from the output flange in the axial direction of the output flange. The giant magnetostrictive material pieces are arranged between the output flange and the supporting plate in the circumferential direction of the output flange at equal intervals. The cooling water jacket is arranged in the shell and surrounds the giant magnetostrictive material pieces. The coil framework is arranged in the shell and surrounds the cooling water jacket. The drive coil is wound on the coil framework and the cooling water jacket. The cooling water pipe is connected to the cooling water jacket and extends out of the shell. The giant magnetostrictive torsional vibration transducer can output ultrasonic torsional vibration and has the advantages that the output power and the vibration amplitude are large and overheat is not prone to happening.
Owner:TSINGHUA UNIV
High-strength toughness differential mechanism universal joint pin machining process
InactiveCN1456708AImprove bearing capacityReduce distortionSuperimposed coating processHigh rateKerosene
A technology for preparing the high-strength and-toughness cross axle of differential gear includes such steps as washing to remove rust and dirt, osmosizing carbon and nitrogen (including ammonia gas and osmosizing), cooling in oil, tempering, fine grinding, treating with Mn and P, electrostatic spraying, and solidifying at 150-180 deg.C. The advantages of its product are high antiwear and anticorrosion nature, no deformation and cracking, high load-bearing power, and high rate of finished products.
Owner:重汽(济南)车桥有限公司
Double-cylinder magnetorheological vibration reducer adopting coaction of external coil and permanent magnet
PendingCN108302149AEasy to installEasy to disassembleSpringsNon-rotating vibration suppressionMagnetic currentMagnetorheological fluid
The invention discloses a double-cylinder magnetorheological vibration reducer adopting coaction of an external coil and a permanent magnet. The double-cylinder magnetorheological vibration reducer comprises a magnetorheological vibration reducer body and a lifting lug; the magnetorheological vibration reducer body comprises a working cylinder, a liquid storage cylinder and a dustproof shell concentrically sleeved; a piston with a piston rod is matched in the working cylinder at intervals, and the working cylinder is fully filled with magnetorheological fluid; the liquid storage cylinder is filled with the magnetorheological fluid and compensation gas, and a liquid storage cylinder sealing mechanism and a base for sealing are fixedly arranged at the upper and lower ends; the top end of thepiston rod penetrates through the guide base and the liquid storage cylinder sealing mechanism in sequence, and extends out of the working cylinder to fixedly connect with the upper end of the dustproof shell; a magnetic exciting device is embedded in the dustproof shell; and an end cover is arranged at the lower end of the dustproof shell. The double-cylinder magnetorheological vibration reducerreduces the machining and assembly difficulty, saves the machining time and cost, prevents pollution of the magnetorheological fluid in the maintenance process, facilitates dissipation of coil heat,and prevents performance reduction caused by overheat of the magnetorheological fluid.
Owner:SOUTH CHINA UNIV OF TECH
Electrode tab structure for lithium ion power battery
InactiveCN105024034ADoes not affect sealingPlay the role of double protectionSecondary cellsCell component detailsLithiumPower battery
The invention relates to an electrode tab structure for a lithium ion power battery. The electrode tab structure comprises a metal conductor belt and an electrode tab rubber block, wherein the metal conductor belt is wrapped by the electrode tab rubber block in an encircling manner; a fusing part is arranged on the metal conductor belt and is positioned at the part, where the metal conductor belt is contacted with the electrode tab rubber block; the fusing part is a specially-shaped structure; the fusing part is completely wrapped by the electrode tab rubber block so that the battery can be protected when current is too high; and the fusing part is a Z-shaped or O-shaped structure processed from the metal conductor belt. The electrode tab structure is simple and easy to process; additional materials are unnecessary to add; sparks cannot be generated while fusing; and the electrode tab structure disclosed by the invention is an electrode tab having an overload self-fusing function.
Owner:WUXI BAISHIJIE METAL PROD TECH
Iron-based catalyst for preparing low-carbon olefin directly from synthesis gas and preparation method of iron-based catalyst
ActiveCN106607058AGood technical effectHigh weight selectivityHydrocarbon from carbon oxidesPhysical/chemical process catalystsSyngasFluidized bed
The invention relates to an iron-based catalyst for preparing low-carbon olefin directly from synthesis gas and a preparation method for the iron-based catalyst, and mainly solves the problems in the prior art that Fischer-Tropsch synthesis reaction is strong exothermic reaction, so that when a static bed is used, heat removal is difficult and temperature runaway is easily caused in a reactor; the catalyst is easily inactivated; and the weight selectivity of the low-carbon olefin is low. The catalyst adopted in the invention comprises the following active components containing a composition with a chemical formula of Fe100AaBbOx in atomic ratio, wherein A is selected from one of Ti or Zr; and B is selected from one of alkali metals, so that the above problems are well solved. The iron-based catalyst can be applied to industrial production of preparing the low-carbon olefin directly from the synthesis gas.
Owner:CHINA PETROLEUM & CHEM CORP +1
Integrated laser cladding head
InactiveCN105862031ANot easy to overheatAvoid easy cloggingMetallic material coating processesWater channelEngineering
The invention discloses an integrated laser cladding head. The integrated laser cladding head comprises a cladding head body, wherein a laser channel for allowing laser to pass through is arranged in the center of the cladding head body; a focusing device is arranged at the upper part of the cladding head body; the focusing device comprises a converting frame, lenses with three different specifications, a rotating shaft and a rotary knob; the lenses are embedded in three circular rings of the converting frame; the rotary knob is connected with the rotating shaft through the converting frame; the laser is focused through the lenses; a cooling water channel is arranged outside the laser channel; the cooling water channel spirally surrounds the laser channel; four powder channels are uniformly distributed outside the cooling water channel in the axial direction; and four protective gas channels are uniformly distributed outside the powder channels in the axial direction. According to the integrated laser cladding head, the focusing device comprises the lenses with three different specifications, the lenses can be freely switched to change the laser spot shape, the spiral cooling water channel is arranged outside the laser channel, the cladding head is difficult to heat, the four powder channels are uniformly distributed outside the cooling water channel in the axial direction, the powder channels are not liable to block, and the powder spraying is smooth.
Owner:天津市宏岱科技有限公司
Hydrotreating method for heavy hydrocarbon raw materials
ActiveCN102465031AExtended operating cycleAchieve separationTreatment with hydrotreatment processesHydrogenation reactionGasoline
The invention discloses a hydrotreating method for heavy hydrocarbon raw materials. According to the invention, a fixed bed hydrogenation reactor is employed; at least two catalyst beds are arranged in the fixed bed hydrogenation reactor; a solvent is introduced at least from one gap formed by two adjacent catalyst beds and is mixed with reacting materials, and light components are extracted; the light components are introduced out from the reactor in an extraction and separation area between two adjacent catalyst beds, and heavy components enter into next catalyst bed for further reaction; extracted oil can directly enter into a gasoline / diesel hydrogenation device so as to obtain qualified gasoline / diesel and can also enter into an FCC main fractionating column for fractionation so as to obtain a crude product which enters into the gasoline / diesel hydrogenation device so as to obtain qualified gasoline / diesel. The method provided in the invention can effectively reduce pressure drop of beds in fixed bed hydrotreatment, prolong the service life of a catalyst, improve a total conversion rate of a fixed bed hydrogenation apparatus and enhance treating capacity of an apparatus under the condition of a same conversion rate, thereby creating greater benefits for an enterprise.
Owner:CHINA PETROLEUM & CHEM CORP +1
Microwave oven
ActiveCN104879802AReduce volumeAchieve heat preservationDomestic stoves or rangesLighting and heating apparatusMicrowave ovenEngineering
The invention provides a microwave oven which comprises an outer cover, an enclosure plate, an upper cover, an inner container, a heating device and a control device. The enclosure plate is arranged on an upper plate of the inner container and supported between a top plate and the upper plate of the outer cover. A heating cavity is defined by the enclosure plate, the upper plate and the top plate. The heating device is arranged in the heating cavity. The upper cover covers the top plate to form a heat preservation cavity. The control device is used for controlling starting / stopping of the heating device to make the temperature in the heat preservation cavity or of the top plate keep in the preset temperature range. According to the microwave oven, the heat preservation cavity is defined by the upper cover and the top plate, the top plate is heated when the heating device works, the temperature in the heat preservation cavity rises, and thus heat preservation is conducted on the food in the heat preservation cavity accordingly; when the heating device stops working, the upper cover can be taken down. The microwave oven is simple in structure, the external space is utilized, and the size of the microwave oven is reduced; furthermore, the food in the heat preservation cavity is kept in the heat preservation range through the control device, and the heat preservation effect of the microwave oven is improved.
Owner:GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD +1
Fuel cell cooling circulation water tank heating device
ActiveCN102024967AShorten warm-up timeFast working statusFuel cell heat exchangeElectricityFuel cells
The invention relates to a fuel cell cooling circulation water tank heating device comprising a fuel cell system and also comprises a circulation water tank heating system which comprise a heating control management unit, an electrical heated tube, a high-voltage contactor and a temperature sensor, wherein the heating control management unit is connected with the high-voltage contactor, carries out data exchange with the control unit of the fuel cell system and is connected with the temperature sensor; the electrical heated tube is arranged in a circulation water tank; the electrical connecting line of the electrical heated tube is led out of the circulation water tank and is connected with the load line of a fuel cell through the high-voltage contactor; and the temperature sensor is arranged in the circulation water tank. The invention has the advantages that the preheating time of the fuel cell is shortened to make the fuel cell rapidly enter the best working state; the heating device is arranged in the water tank, thus, the water holding space is big and the local overheating is not easy to generate; the device has multiple protection and is safe and reliable; the electrical heated tube with different resistance can be selected according to different power generation output of the fuel cell, thus the device has wide the range of application. The device has simple function and great significance and is convenient to implement.
Owner:SUNRISE POWER CO LTD
Supported cobalt-based catalyst for Fischer-Tropsch synthesis, and preparation method and application thereof
InactiveCN106582753AHigh mechanical strengthImprove thermal conductivityHeterogenous catalyst chemical elementsLiquid hydrocarbon mixture productionCobalt(II,III) oxideUltimate tensile strength
The invention provides a supported cobalt-based catalyst for Fischer-Tropsch synthesis. The supported cobalt-based catalyst is composed of cobaltosic oxide, an oxide of a precious-metal aid, an oxide of a non-precious-metal aid and a tungsten carbide carrier in a weight ratio of (10-80): (0-3): (0-20): 100. The supported cobalt-based catalyst has the advantages of high mechanical strength and good thermal conductivity.
Owner:中科潞安能源技术有限公司
Power module
InactiveCN101847623ANot easy to overheatThermoelectric device with peltier/seeback effectSemiconductor/solid-state device detailsThermal conductivityPower module
Owner:TOYOTA JIDOSHA KK
Power battery module structure for locomotive
InactiveCN110649201AIncrease production capacityEasy to assembleVent arrangementsSecondary cellsPower batteryElectrical battery
The invention discloses a power battery module structure for a locomotive, which belongs to the technical field of power battery systems. The power battery module structure for a locomotive comprisesa shell, at least one cooling air duct is arranged in the shell, and an air return duct is arranged between the cooling air duct and the shell; at least one battery cavity is formed in the cooling airduct, a maintenance door correspondingly matched with each battery cavity is assembled on the cooling air duct in a sealing manner, and a power battery pack is arranged in each battery cavity. The structure further comprises an air conditioning unit. The air outlet of the air conditioning unit, the cooling air duct, the air return duct and the air inlet of the air conditioning unit are sequentially communicated to form a circulating passage. The structure further comprises a top cover, the top cover is assembled at the end part of the shell, and the air conditioning unit is arranged in the top cover; and a pressure relief air duct is arranged in the top cover, one end is provided with an explosion-proof pressure relief device, and the other end is communicated with the cooling air duct, so that the purposes of simplifying production and assembly requirements by realizing the internal modular design of the power battery system and improving the safety coefficient by improving the internal structure of the power battery are achieved.
Owner:CRRC ZIYANG CO LTD
Solar luminous spike lamp and control method thereof
PendingCN107687135AImprove traffic safetyImpact on traffic safety, to further improve traffic safetyTraffic signalsRoad signsEngineeringControl circuit
A solar luminous spike lamp and a control method thereof are provided; LED light sources (2), a power storage element (4) and a photovoltaic device (5) are connected to a control circuit (3) respectively through circuits; a shell (1) integrally packages the LED light sources (2), the control circuit (3), the power storage element (4) and the photovoltaic device (5) through a packaging material (6); the LED light sources (3) emitting light from inside to outside along light-permeable windows are arranged below at least one of the light-permeable windows. Light can be emitted continuously at thepremise of ensuring moderate flashing, the dynamic light emission with moderate flashing is guaranteed, and negative effects of flashing are decreased; LEDs of same or different main emitting wavelengths or packaging manners are provided so that spike lamp identification degree is increased; dazzling effect is relieved as gradient light emission is provided. Since improved performance and extended functionality are achieved, the solar luminous spike lamp can be mounted on a pavement and can also be combined to other traffic safety facilities and can evenly be used as an energy-saving lightingproduct; therefore, the solar luminous spike lamp has a wider range of application.
Owner:方显峰
Noise-reducing saw blade for timber cutting
InactiveCN109093770ASaw blade life is not easy to shortenLess prone to fireCircular sawsSaw bladesEngineeringCopper
The invention discloses a noise-reducing saw blade for timber cutting. The noise-reducing saw blade comprises a copper core plate, a plurality of air holes are formed in the outer circumference of thecopper core plate, cutting disks are arranged on two sides of the copper core plate and provided with fixing holes penetrating the copper core plate, the outer edges of the cutting disks extend outwards to go beyond the outer edge of the copper core plate, a plurality of rubber posts surrounding the copper core plate are arranged between the two cutting disks, flared elastic bodies are arranged at two ends of the rubber posts, threaded rods are arranged in the rubber posts, the two cutting disks are fixed to two ends of the threaded rods and are connected with the copper core plate through pins penetrating a plurality of surrounding fixing holes, a plurality of saw teeth are arranged on the outer circumferential faces of the cutting disks, 10-15 saw teeth are designed in a group, an inwardly extending noise-reducing seam is formed in the root of one of each saw tooth group, and noise-reducing pillars are inlaid into the ends of the noise-reducing seams. The noise-reducing saw blade for timber cutting is not prone to being overheated and causing fire and long in service life without sharp noise.
Owner:湖州南浔登越家居有限公司
Intelligent teaching rostrum
InactiveCN110477604AWon't breakEasy to findPulpitsRegistering/indicating time of eventsComputer terminalComputer science
The invention relates to an intelligent teaching rostrum. The teaching rostrum comprises a rostrum body arranged on the ground; a camera arranged on the table-board of the rostrum body; a control panel fixed on the table-board of the rostrum body; a time recorder arranged on the table-board of the rostrum body; a memorizer arranged in the rostrum body and connected with the camera and the time recorders; a processor arranged in the rostrum body and vertically corresponding to the memorizer, and connected with the memorizer and used for processing data; and a display terminal connected with theprocessor and used for playing the data transmitted from the process in a video or audio way. The intelligent teaching rostrum disclosed by the invention is small in floor space and hard to overheatin the use; and the fault is hard to occur, the class atmosphere cannot be damaged, and the course can be performed in order.
Owner:赵婷
Hydrotreatment method of heavy hydrocarbon raw material
ActiveCN102465032ASimple and fast operationEasy to operateTreatment with hydrotreatment processesGasolineFractionation
The invention relates to a hydrotreatment method of a heavy hydrocarbon raw material. The method adopts a fixed-bed hydrogenation reactor, which is provided with at least two catalyst bed layers inside. Between at least one adjacent catalyst bed layer, a liquid phase material is educed. The educed liquid phase material is mixed with a solvent, and then a light component is extracted. A light component-extracted heavy component is returned to the fixed-bed hydrogenation reactor so as to enter a next catalyst bed layer for continuous reaction. The extracted oil can directly enter a gasoline and diesel oil hydrogenation device so as to obtain qualified gasoline and diesel oil, or can enter a main fractionate tower of FCC (fluid catalytic cracking) for fractionation so as to obtain a crude product, which then enters a gasoline and diesel oil hydrogenation device so as to obtain qualified gasoline and diesel oil. The method of the invention not lonely can effectively reduce the pressure drop of a bed layer in subsequent hydrotreatment and prolong the service life of a catalyst, but also enhances the total conversion rate of a fixed-bed hydrogenation device simultaneously, or can improve the treatment capability of the device under a same conversion rate, as well as recovers part of light oil, thus being able to create greater benefits for enterprises.
Owner:CHINA PETROLEUM & CHEM CORP +1
Catalyst for preparing low-carbon olefins from synthesis gas and preparation method thereof
ActiveCN106607049AHigh weight selectivityNot easy to overheatHydrocarbon from carbon oxidesLiquid hydrocarbon mixture productionSyngasFixed bed
The invention relates to a catalyst for preparing low-carbon olefins from synthesis gas and a preparation method thereof. The catalyst for preparing the low-carbon olefins from the synthesis gas and the preparation method thereof mainly solve the problems that in the prior art, because the Fischer-Tropsch synthesis reaction is a strong exothermic reaction, in the process of using a fixed bed, heat is difficult to remove in a reactor, temperature runaway is easy, the catalyst tends to be inactive and the weight selectivity of the low-carbon olefins is low. According to the technical scheme, the catalyst adopted by the method comprises, in terms of atomic ratio, a composition with a chemical formula being Fe100MnaBbCcOx, wherein B is selected from at least one of Ga and In, and C is selected from at least one of Rh and Ir. The problems can be well solved through adopting the above technical scheme, and the catalyst can be applied to industrial production of preparing the low-carbon olefins from the synthesis gas through a one-step method.
Owner:CHINA PETROLEUM & CHEM CORP +1
Heat insulation dining car
InactiveCN103735039ASimple structureExtended hold timeStorage heatersServing tablesHeat transfer efficiencyEngineering
The invention discloses a heat insulation dining car. According to the heat insulation dining car, a heat pipe is arranged in a vehicle box body and comprises a heating section and an isothermal section, the heating section and the isothermal section form a sealed loop, a steam heating pipe is arranged in the heating section, and the outer portion of the heating section is covered with an electric heating ring. The heat insulation dining car is simple in structure, works reliably, is small in overhaul amount and can improve heat transfer efficiency and heating speed, heat is released slowly, isothermality of the dining car is guaranteed, heat insulation time of the dining car is greatly improved, and the dining car does not overheat easily.
Owner:苏州中达电力设备有限公司
Method for synthesizing epoxy propane by loading catalysts different in grain size
ActiveCN109942513ASlow reaction rateExtended service lifeOrganic chemistryChemical recyclingReaction rateDecomposition
The invention relates to a method for synthesizing epoxy propane by loading catalysts different in grain size. According to the method, reaction materials sequentially pass through catalyst bed layerscontaining catalysts the grain sizes of which are gradually decreased. Compared with the prior art, the method has the advantages that heat release is uniform and an overtemperature situation is unlikely to occur. The defects that catalysts with large grain size are low in mass transfer speed and reaction rate and the reaction of catalysts on the next layer immediately happens when hydrogen peroxide is not completely converted are avoided. The service life of the catalysts is effectively prolonged, the regeneration frequency is lowered, the production efficiency is improved, the propylene oxide yield is high, the hydrogen peroxide decomposition rate is low, the explosion risk is lowered, and the safety is high.
Owner:JIANGSU YANGNONG CHEM GROUP +2
Device and method for preparing anhydrous lower alcohol mixture by using Fischer-Tropsch synthesis by-product light alcohols
PendingCN110833766AHigh product purityImprove product qualityIon-exchange process apparatusIon-exchanger regenerationSimple Organic CompoundsOrganic compound
A device and method for preparing an anhydrous lower alcohol mixture by using synthesis by-product light alcohols are provided. The device includes a pervaporation membrane dehydration unit, a hydrogenation unit, and an adsorption and dehydration unit which are connected in sequence through pipes, wherein the pervaporation membrane dehydration unit includes a pre-dehydration column, a raw materialheater, and a pervaporation membrane dehydrator which are connected in sequence through pipes; the hydrogenation unit includes a hydrogenated raw material heater, a hydrogenation reactor, and a hydrogenated gas-liquid separator which are connected in sequence through pipes. The adsorption and dehydration unit includes a hydrogenated light alcohol heater and an adsorption column connected in sequence through pipes. The device and method can effectively reduce the content of water and non-alcoholic oxygen-containing organic compounds in the lower alcohol mixture and improve product quality.
Owner:INNER MONGOLIA YITAI COAL BASED NEW MATERIALS RES INST CO LTD
Device and method for preparing anhydrous lower alcohol mixture by using Fischer-Tropsch synthesis by-product light alcohols
PendingCN110833767AProcess greenHigh purityIon-exchange process apparatusOrganic compound preparationSimple Organic CompoundsAlcohol
A device and method for preparing an anhydrous lower alcohol mixture by using Fischer-Tropsch synthesis by-product light alcohols are disclosed. The device includes a pervaporation membrane dehydration unit, a hydrogenation unit, and an adsorption and dehydration unit which are connected in sequence through pipelines, wherein the pervaporation membrane dehydration unit includes a raw material heater and a pervaporation membrane dehydrator which are connected in sequence through pipelines; the hydrogenation unit includes a hydrogenation raw material heater, a hydrogenation reactor, and a hydrogenated gas-liquid separator which are connected in sequence through pipelines; the adsorption and dehydration unit includes a hydrogenated light alcohol heater and an adsorption column which are sequentially connected through pipelines. The device and the method can effectively reduce the content of water and non-alcoholic oxygen-containing organic compounds in the lower alcohol mixture and improve product quality.
Owner:INNER MONGOLIA YITAI COAL BASED NEW MATERIALS RES INST CO LTD
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