106results about How to "Improve the perturbation effect" patented technology

The invention discloses an alpine region-based double-curvature arch dam aeration ice-melting anti-icing device, and relates to the technical field of anti-icing, the alpine region-based double-curvature arch dam aeration ice-melting anti-icing device comprises a double-curvature arch dam body, a lifting structure, an aeration anti-icing structure, a PLC controller, a temperature sensor and a liquid level sensor are arranged on the outer convex curved surface side of the double-curvature arch dam body, and the aeration anti-icing structure comprises a plurality of fourth connecting pipes; the bottoms of the outer sides of the fourth connecting pipes are fixedly connected with a plurality of pressure release valves, and the bottoms of the pressure release valves are fixedly connected with bubble generators, so that along with the rise of the internal air pressure of the fourth connecting pipes, the air flow bursts through the pressure release valves and then is discharged through the bubble generators, and a large number of bubbles are generated; and in the process that the bubbles move towards the water surface, the water surface is stirred, the water surface is prevented from being frozen, the anti-freezing effect on the upstream side of the hyperbolic arch dam body is comprehensively achieved, and damage to the structure of the upstream side of the hyperbolic arch dam body caused by freezing is reduced.

The invention discloses steelmaking flue gas recovery and waste heat utilization equipment and a use method, and relates to the technical field of flue gas waste heat recovery. Dust in the steelmaking flue gas can be filtered through the filter cartridge before the flue gas enters the heat exchange mechanism, and then the clean flue gas is conveyed into the heat exchange mechanism, so that the inner wall of the heat exchange barrel can be kept in a clean state all the time, the dust in the steelmaking flue gas is prevented from being attached to the inner wall of the heat exchange barrel, heat transfer is prevented from being hindered, and the service life of the steelmaking flue gas is prolonged. The smoke dust scraping assembly can scrape off smoke dust attached to the inner wall of the filter cartridge, the self-cleaning effect can be achieved while the heat of the steelmaking smoke gas is recycled, and therefore the good filtering effect of the filter cartridge is always kept, and the scraped-off smoke dust can be collected in a centralized mode under pushing of an auger. When high-temperature flue gas passes through the heat exchange assemblies, the heat exchange assemblies can rotate around the axes of the heat exchange assemblies, so that surrounding clear water is disturbed, clear water at different positions is stirred and mixed, and water temperature areas at different positions are consistent.

The invention discloses a coal crushing device for safe sampling of pulverized coal, and relates to the technical field of coal crushing. The device comprises a supporting assembly, a powder tank is arranged in the supporting assembly in a penetrating mode, a funnel is arranged at the top of the powder tank and communicated with the interior of the powder tank, a stabilizing plate is arranged in the supporting assembly and located below the interior of the powder tank, a spiral sampling assembly is arranged on the right side of the powder tank, and a sampling pipe is arranged at the bottom of the spiral sampling assembly; a particle preventing device is arranged in the powder tank, an anti-bonding device is arranged below the particle preventing device, and an anti-erosion device is arranged on the inner side of the anti-bonding device. In the coal crushing process, the movement range of the crushing assembly is continuously changed, the phenomenon that part of coal is indirectly not in contact with the crushing assembly due to traditional static crushing machining is distinguished, and the phenomenon that coal powder is uneven in size due to different coal crushing frequencies is avoided.

The present invention discloses a drying device for preparing high-porous honeycomb catalysts, which belongs to the technical field of catalyst production, and solves the problems of low drying efficiency, uneven drying, and poor drying effect in the prior art. The drying device comprises a drying chamber, wherein a support plate and a porous partition are provided in the drying chamber, and an air duct for inputting dry hot air into the drying chamber is provided on the support plate. An air chamber is formed between the support plate and the partition, and the dry hot air first enters the air chamber and then passes upward through the partition, and a movable block driven by a screw motor is also provided between the partition and the top of the drying chamber. The present invention realizes the drying effect on the catalyst by the dry hot air moving from bottom to top, thereby increasing the contact area between the dry hot air and the catalyst, and improving the drying efficiency. The movable block is driven by the screw motor to perform linear reciprocating motion, so that each catalyst is in a state of intermittently moving away from or close to the air outlet end of the air duct, thereby realizing uniform drying of a plurality of catalysts and further improving the drying effect.

The invention discloses a method for optimizing the cooling effect of a firefighter uniform based on an underarm heat dissipation channel, and relates to the technical field of fire-fighting equipment, and the method comprises the steps: S1, constructing an underarm heat dissipation initial data set; s2, quantifying a heat dissipation dynamic state and outputting underarm heat dissipation performance parameters; s3, airflow disturbance is adjusted through dynamic curvature, and a preliminary channel optimization model is generated in combination with a sectional channel design structure; s4, forming a multi-channel heat transfer model through a main and auxiliary channel parallel design and a layered coupling structure; s5, outputting a channel form model by adopting a non-circular wing-shaped cross section design and variable cross section transition; s6, embedding a guide vane and a spiral structure, and generating an airflow field optimization model; s7, generating a dynamically optimized armpit heat dissipation channel model by combining an ant colony optimization algorithm and a grey wolf optimization algorithm; and S8, obtaining a final optimized firefighter uniform underarm heat dissipation channel scheme. According to the method, armpit heat dissipation dynamic modeling, multi-channel optimization and hybrid intelligent algorithm tuning are adopted, and efficient armpit heat dissipation channel design is achieved.

The invention discloses a self-adaptive control method of a switching information physical system under the condition of coping with bilateral network attacks, and designs a self-adaptive controller, a correction signal, a self-adaptive law and an average residence time switching law in order to reduce the influence of the bilateral network attacks on the system performance. The switching information physical system which is attacked by the network from the sensor to the controller end and the network from the controller to the actuator end is gradually converged to zero, and the problem of self-adaptive control is solved. According to the method, bilateral network attacks can be effectively handled, the performance of the switching information physical system subjected to the network attacks is improved, and the safety of the switching information physical system is improved.

The invention discloses a preparation device and a preparation method of fluffy short hybrid fibers. The preparation device comprises a spinning nozzle, a spinning runner, a collecting plate and an air supply device, the spinning nozzle and the collecting plate are oppositely arranged up and down, the spinning runner is located between the spinning nozzle and the collecting plate, and a high-voltage electrostatic field is arranged between the spinning runner and the collecting plate; liquid drops sprayed by the spinning nozzle pass through the spinning flow channel and the high-voltage electrostatic field and then are stretched into fibers, and the fibers fall on the collecting plate; the air supply device supplies air to the spinning flow channel, so that airflow passes through the spinning flow channel; a disturbance device is further arranged in the spinning flow channel and can disturb airflow and liquid drops, so that bubbles are mixed in the liquid drops. The disturbance device comprises an axial flow fan, air supplied by the air supply device forms air flow from top to bottom in the spinning flow channel, the air flow from top to bottom can drive the axial flow fan to rotate, and then the air flow and liquid drops are disturbed. According to the invention, fluffy short hybrid fibers can be prepared.

The invention discloses liquid hydrocarbon fuel combustion equipment and a supercritical carbon dioxide circulation system, the liquid hydrocarbon fuel combustion equipment comprises a nozzle, a combustion chamber and a rotational flow assembly, the rotational flow assembly comprises a first-stage pipe, a second-stage pipe, a first-stage cyclone, a second-stage cyclone and a third-stage cyclone, and the first-stage pipe and the second-stage pipe are both scaling venturi pipes. The supercritical carbon dioxide circulation system comprises fuel supply equipment, pure oxygen supply equipment and a circulation assembly, mixed gas of carbon dioxide and water vapor generated by combustion of the liquid hydrocarbon fuel combustion equipment is circulated through the circulation assembly to obtain high-purity carbon dioxide, and the high-purity carbon dioxide is divided into three paths to flow into a first-stage swirler, a second-stage swirler and a third-stage swirler; the carbon dioxide flowing into the second-stage cyclone is uniformly mixed with oxygen from pure oxygen supply equipment before flowing into the second-stage cyclone. The combustion ignition delay period and the mixing time can be prolonged, a standing vortex high-temperature rapid reaction area is formed, the problem that the combustion speed is low in the concentrated carbon dioxide atmosphere is solved, and the supercritical carbon dioxide circulation efficiency is improved.

In order to solve the problem that nitrogen trichloride is accumulated in the chlorine buffer tank, the chlorine buffer tank capable of preventing nitrogen trichloride from being accumulated comprises a buffer tank body, the upper end of the buffer tank body is connected with an air inlet pipe, an exhaust pipe and a pressure gauge, and the lower portion of the buffer tank body is connected with a blow-off pipe; the inner extending pipe is located on one side of the interior of the buffer tank body and is distributed in the vertical direction, and the upper end of the inner extending pipe is connected with the exhaust pipe; the inclined pipe and the inner extending pipe are arranged in an inclined mode, one end of the inclined pipe is connected with the inner extending pipe, and the other end of the inclined pipe is located over an inlet of the blow-off pipe; the liquid level meter is used for detecting the liquid level height in the buffer tank, chlorine is introduced to the position above the lowest point of the bottom of the chlorine buffer tank body through the inner extending pipe and the inclined pipe, the disturbance effect of the chlorine on liquid chlorine at the bottom of the buffer tank body is further improved through inclined arrangement of the inclined pipe, and therefore residual accumulation of the liquid chlorine is reduced; and the safety risk of nitrogen trichloride is reduced.

The invention discloses a coal mine cutting dust strong fog flow-double negative pressure control dust removal device which comprises an air draft tube arranged on a fully-mechanized coal winning machine and further comprises a negative pressure dust extraction sleeve arranged on a cutting arm of the fully-mechanized coal winning machine in a sleeving mode in an annular air tube mode, and a negative pressure guide tube is led out of the air draft tube to be connected with the negative pressure dust extraction sleeve. An air draft barrel of the heading machine is connected with an air draft fan to form a working face negative pressure field, meanwhile, a negative pressure guide pipe is led out of the air draft barrel to be connected with a negative pressure dust suction sleeve arranged on a cutting arm in a sleeving mode, a dust source negative pressure field closer to a dust production source is formed, and the dust source negative pressure field and the working face negative pressure field cooperatively form the double-negative-pressure effect. The spraying field of the outer spraying device is in an inward shrinkage state under the action of a dust source negative pressure field, sprayed fog drops are denser, the wind flow disturbance resistance is better, the strong fog flow effect is formed, and the dust falling efficiency is improved.

The utility model relates to powder conveying technical field, and disclose a kind of tubular transmission mechanism of powdery material with vibration function, including conveying pipe, displacement device, vibration ring, vibration ring is slidably installed in the outer periphery of conveying pipe, and vibration ring is driven to reciprocate along the axis direction of conveying pipe by displacement device, the inner wall of vibration ring is provided with the multiple vibration components of circumferential uniform distribution, and vibration is transmitted to powdery material by dynamic knocking of vibration component to the outer wall of displacement device.The utility model drives vibration ring to reciprocate along the axis of conveying pipe by displacement device, simultaneously, vibration component of vibration ring inner wall carries out circumferential dynamic knocking to pipe wall, and forms the unblocking mode of "global coverage+multiple point vibration", when conveying strong viscosity milk powder, vibration frequency can reach 0-100Hz, can effectively break powder bridging, reduce pipeline blockage rate, solve the problem of poor conveying caused by powder adhesion, caking.

The utility model discloses a melting preheating device for plastic particles, which relates to the technical field of plastic particle melting devices, and comprises a frame body, a connecting shaft is arranged on one side in the frame body, a rotating shaft movably penetrates through the outer surface of the connecting shaft, the rotating shaft is fixedly connected to one end of a barrel body, and the other end of the barrel body is fixedly connected with a fixed block. A sliding groove is formed in the fixing block. Due to the arrangement of the motor and the connecting rod, when the motor drives the connecting rod to rotate, the connecting rod can synchronously drive the sliding block to move in the sliding groove in the outer surface of the fixing block, and therefore one end of the barrel body is driven to move through the different positions of the connecting rod and the sliding block; and meanwhile, the other end of the barrel body is rotationally connected with the frame body through the connecting shaft and the rotating shaft, so that the barrel body can continuously move in the frame body, the disturbance to the plastic particles in the barrel body is increased, the plastic particles can be better fused, and the fusion efficiency of the plastic particles is improved.

The utility model belongs to water treatment technical field, specifically discloses a perforated folded plate for sedimentation tank and the sedimentation tank of oblique installation perforated folded plate. The perforated folded plate is the plate -like structure of undulating extension and includes at least three folded plate tops of undulating top end and three folded plate bottoms of undulating bottom end, and the folded plate top of perforated folded plate is adjacent to the folded plate bottom and is provided with a plurality of folded plate holes on or close to the folded plate top. The water inlet and the water outlet of the sedimentation tank are separately arranged in the lower part and the upper part of the pool body, a folded plate support is fixed above the water inlet in the pool body, a plurality of aforementioned perforated folded plates are obliquely arranged on the folded plate support in the pool body, the folded plate top of the perforated folded plate faces upwards and the folded plate bottom faces downwards. The perforated folded plate top of the utility model is provided with the folded plate hole, and the sewage can flow upwards through the folded plate hole, which not only can increase the sedimentation area, but also can realize automatic sludge discharge, has the characteristics of simple structure, wide application range, high sedimentation efficiency and automatic sludge discharge.

The utility model discloses an ice maker which comprises a pre-cooling water path plate, an evaporator and a spraying water path plate, the evaporator comprises an evaporation pipe and a plurality of ice fingers which are fixedly connected with the evaporation pipe and extend downwards, and the evaporation pipe is clamped between the pre-cooling water path plate and the spraying water path plate; the pre-cooling water path plate is provided with a raw water inlet, a pre-cooling cavity communicated with the raw water inlet and a pre-cooling water outlet communicated with the pre-cooling cavity, and the spraying water path plate is provided with a pre-cooling water inlet communicated with the pre-cooling water outlet, a spraying cavity communicated with the pre-cooling water inlet and a spraying opening communicated with the spraying cavity. The spraying waterway plate is further provided with a through hole for the ice finger to penetrate through, and the spraying openings are arranged around the through hole. The interlayer design of the pre-cooling water path plate, the evaporator and the spraying water path plate can protect the evaporator on one hand, and on the other hand, the cooling capacity of the evaporator can be fully utilized to pre-cool raw water, so that the ice making efficiency is improved.

The application discloses a kind of based on parallel confrontation's generative image steganography method, system, electronic equipment and computer readable storage medium, belong to image steganography technical field.The application proposes a kind of based on adding channel attention mechanism U-Net structure generation confrontation sample, enhance the security of multiple confrontation network architecture of existing steganography method, original image is generated by generator generation confrontation noise, and confrontation noise is reasonably distributed to original image to generate confrontation sample, and the steganography image generated by using the generated confrontation sample as carrier image through existing steganography algorithm can resist the detection of several most advanced steganalysis of present time;Solve the problem that " cannot resist the simultaneous detection of multiple steganalysis and cannot resist the detection of most advanced steganalysis of present time" in prior art.

The present disclosure relates to a variable aircraft. One of the first fixed wing and the second fixed wing is fixedly connected to the left side of the fuselage, and the other is fixedly connected to the right side of the fuselage; one end of the first connecting rod is hinged to the first fixed wing, and the other end is hinged to the first movable wing; one end of the second connecting rod is hinged to the second fixed wing, and the other end is hinged to the second movable wing; the directions of the hinged shafts are consistent with the longitudinal axis of the fuselage; the first movable wing and the second movable wing can be switched to the cross-wing configuration under the action of aerodynamic force and roll torque, in which the first movable wing is connected to the fuselage at one end and suspended at the other end, and the second movable wing is connected to the fuselage at one end and suspended at the other end; the first fixed wing, the first movable wing, the second fixed wing and the second movable wing are arranged in sequence around the longitudinal axis of the fuselage, the first fixed wing and the second fixed wing are opposite to each other, and the first movable wing and the second movable wing are opposite to each other.

The invention discloses a device for preparing graphene by air flow pulverization, and relates to the technical field of graphene pulverization. The invention vertically fixes an inner tube in the middle position inside an air flow pulverization bin, sleeves an outer tube on the outside of the air flow pulverization bin, and connects the inner tube and the outer tube with a feeding tube through a shunt tube, so that part of the graphene raw material is injected into the air flow pulverization bin from outside to inside through an outer nozzle fixed on the outer tube, and part of the graphene raw material is injected into the air flow pulverization bin from inside to outside through an inner nozzle fixed on the inner tube, which can greatly reduce the distance between the correspondingly arranged outer nozzle and inner nozzle, and to a certain extent reduce the loss of kinetic energy of the graphene raw material when it moves a long distance after being injected, which is beneficial to improve the intensity of the initial collision of the graphene raw material after it is injected into the air flow pulverization bin, and further beneficial to improve the efficiency and effect of the graphene raw material being pulverized by the air flow in the air flow pulverization bin.

The invention relates to the field of ecological restoration, in particular to a land ecological space comprehensive improvement and restoration system which comprises a sewage buffer tank, a sewage sedimentation tank, an improvement and restoration tank and a clean storage tank which are communicated in sequence, a plurality of suspended planting floating beds are arranged on the improvement and restoration tank, and each suspended planting floating bed comprises a planting frame, a cultivation bed and a water mist device. An aeration device is arranged between every two adjacent suspended planting floating beds, and a height-adjustable overflow weir is arranged between the regulation and remediation pool and the clean storage pool; the water mist device comprises a floating ring body, a balance weight ring body arranged at the lower end of the floating ring body, a metal plate arranged on the floating ring body, a plurality of supporting frame bodies arranged on the floating ring body and located on the metal plate, a plurality of piezoelectric ceramics connected with an external power source and a plurality of water flow stirring devices arranged at the lower end of the floating ring body and used for stirring water flow. The technical problem that the water mist state cannot meet the existing requirements in existing water body improvement and restoration is solved.

A bone cement preparation and injection device comprises a water injector, a protective connector and a mixer, the water injector comprises a water injection outer cylinder and a water injection push rod which is inserted into the water injection outer cylinder in a sliding mode in the axial direction, and the head end of the water injection outer cylinder is provided with a first thread part and a water liquid injection opening communicated with an inner cavity; the mixer comprises a mixing outer cylinder, a mixing inner cylinder inserted in the mixing outer cylinder in a sliding mode in the axial direction, a stirring rod arranged in the mixing inner cylinder in a sliding and penetrating mode in the axial direction and a mixing push-pull rod used for driving the stirring rod to slide, the stirring rod is arranged in the mixing piston in a sliding and penetrating mode, and the tail end of the mixing push-pull rod is arranged at the tail end of the mixing inner cylinder in a sliding and penetrating mode; the head end of the mixing outer barrel is provided with a second thread part and a mixed liquid opening communicated with the inner cavity, the two ends of the protective connector are provided with connecting thread parts for the first thread part and the second thread part to be locked in a threaded mode respectively, and after the head end of the water injection outer barrel and the head end of the mixing outer barrel are locked to the protective connector in a threaded mode, the water injection opening is communicated with the mixed liquid opening. The device has the effect of ensuring the quality of the bone cement.

The present application provides a motor control method, which includes obtaining a first electrical signal from a motor stator; obtaining a stator back electromotive force based on the first electrical signal; performing amplitude and phase compensation on the stator back electromotive force to obtain a compensated back electromotive force; processing the compensated back electromotive force using a low-pass filter to obtain a filtered signal; outputting motor rotor position information based on the filtered signal, and implementing motor control based on the motor rotor position information; wherein the motor rotor position information includes motor angular velocity and rotor position. The motor control method provided in the embodiment of the present application can greatly reduce the impact of sudden changes in the input signal on the accuracy of rotor position observation by preferentially compensating the stator back electromotive force and then performing low-pass filtering to obtain a filtered signal, thereby improving the system's ability to resist input signal disturbances.

The utility model provides an electrolytic machining device, which belongs to the technical field of machining equipment, and comprises a rotating main shaft connected with an output shaft of a machining machine tool; the vibration generator is fixed on the rotating main shaft; the machining cathode is fixed to the outer wall of the rotating main shaft, the machining cathode comprises a finish machining cathode and a rough machining cathode which are sequentially arranged in the machining direction, the rough machining cathode and the finish machining cathode are arranged in an insulated mode, and spraying parts are arranged at the rough machining cathode and the finish machining cathode correspondingly; a communicating part is arranged on the rotating main shaft and is communicated with the spraying part and external supplementing equipment; the machining device has the advantages that the rough machining cathode is arranged close to the drill bit, that is, a workpiece needs to be subjected to rough machining and then finish machining in the actual machining process, synchronous implementation of finish machining and rough machining can be achieved in one-time machining operation, the machining efficiency is improved, the machining cost is reduced, and the machining efficiency is improved. And the processing operation efficiency is improved.

The application discloses a high-efficiency carbon fixation microalgae breeding device, and relates to the technical field of carbon fixation microalgae breeding.The device comprises an elongated pool, a partition plate is arranged at the middle position of the elongated pool, so that a loop-shaped channel in the shape of a long strip is formed in the elongated pool, bottom plates are arranged in the two parallel straight channels of the loop-shaped channel, the upper surfaces of the bottom plates are arranged in an inclined manner, and the inclined directions of the two bottom plates are opposite.Two liquid lifting mechanisms are arranged at the high end positions of the two bottom plates respectively, and are used for lifting the algal liquid in the loop-shaped channel to the high end of the bottom plate, so that the algal liquid flows downward along the upper surface of the bottom plate automatically.Two groups of disturbance mechanisms are arranged on the upper surfaces of the two bottom plates.The algal liquid is driven to form a turbulent state by the bidirectional inclined bottom plates, the liquid lifting mechanism and the disturbance mechanism, the problems of surface light inhibition and bottom dark area are reduced, and the light energy utilization efficiency of the microalgae is improved significantly.

The application discloses a substrate etching method and device. The substrate etching method comprises the following steps: immersing a substrate into a processing tank containing an etching solution, wet etching the substrate by the etching solution, and forming a deep structure on the surface of the substrate; and providing a gas into the etching solution based on a pulse signal to generate bubbles in the etching solution, wherein one pulse time of the pulse signal comprises a gas supply period and an intermittent period, and the intermittent period depends on a diffusion time required for a key component in the deep structure to reach a diffusion equilibrium after the end of the gas supply period.

The invention discloses an efficient DBIO process and treatment equipment, which relates to the technical field of sewage treatment, and comprises a tank body, wherein an anoxic filler frame is fixedly connected to the tank body, an aerobic filler frame fixedly connected to the tank body is arranged above the anoxic filler frame, and the top and bottom of the anoxic filler frame and the aerobic filler frame are fixedly connected with a filtering interception net by bolts. The efficient DBIO process and treatment equipment sequentially arrange anoxic filler layers and aerobic filler layers in the tank body from bottom to top, and then fill anoxic biological fillers and aerobic biological fillers in the anoxic filler frame and the aerobic filler frame respectively, and then supply sewage to the bottom of the sewage tank body, and then the sewage flows upward from the bottom, and then the bacteria of the fillers in the anoxic filler layer and the aerobic filler layer respectively carry out biochemical reactions on total nitrogen and ammonia nitrogen substances in the sewage, and at the same time, through the cooperation of a disturbance mechanism, the total nitrogen and ammonia nitrogen substances in the sewage are effectively removed.

The duct air-lubricating oil heat exchanger comprises a group of heat exchange units which are arranged in a circumferential mode, and each heat exchange unit comprises an outer duct upper cover plate, an outer duct lower cover plate, a duct supporting plate and a heat exchange core body which are composed of duct inner walls; an annular oil conveying pipe is arranged outside the heat exchange unit, and a lubricating oil inlet pipe and a lubricating oil outlet pipe are arranged on the oil conveying pipe; the heat exchange core body is fixedly arranged in a space formed by the outer culvert upper cover plate, the outer culvert lower cover plate and the duct supporting plate; the heat exchange core body comprises fixed fins, a heat transfer pipe, a bent pipe and a fin plate, the heat transfer pipe is connected with the bent pipe, the end part of the heat transfer pipe is connected with the oil conveying pipe through a lubricating oil connecting pipe, the fixed fins are arranged at the end part of the heat transfer pipe, and the fin plate is sleeved on the heat transfer pipe. The fins are arranged in a staggered mode, the heat transfer efficiency is improved, the detachable and cleaning functions are achieved, remarkable progress is made in the aspects of improving the lubricating oil cooling effect, reducing the air flowing resistance and enhancing the structural strength, and the heat exchanger is suitable for modern high-performance aircrafts.

The invention discloses a Joule heating type ammonia decomposition porous foam filled membrane reactor which comprises an explosion-proof cavity, a metal palladium membrane is adopted as a hydrogen permeation membrane, cobalt molybdenum nitride is selected as an efficient catalyst, the catalyst is uniformly distributed in silicon carbide foam, and the silicon carbide foam plays a role of a Joule heating substrate at the same time; the two ends of the silicon carbide foam are connected to a positive electrode and a negative electrode respectively, rapid heating of the catalyst bed layer is achieved by applying voltage, in the operation process of the reactor, ammonia gas is preheated through the heat exchanger firstly and then enters the membrane reactor to be decomposed, and hydrogen, nitrogen and unreacted ammonia gas mixed gas are generated; after the gases are separated through a palladium membrane, high-purity hydrogen with the purity reaching up to 99.999% can be obtained. According to the device disclosed by the invention, three steps of heating, hydrogen production and purification are integrated, so that the loss of heat in the transfer process is effectively reduced, and the palladium membrane also promotes the movement of chemical reaction equilibrium towards the hydrogen production direction, so that the conversion rate of ammonia decomposition is improved.

The present invention relates to agricultural machinery, in particular to an air-suction type flexible high-speed precision seeding device for peanuts on a seeding machine. It comprises a primary seeding device and a secondary seeding device, wherein the secondary seeding device is connected to the bottom of the primary seeding device; the primary seeding device comprises a primary seeding front housing, a primary seeding rear housing and a seeding disc, wherein the primary seeding front housing and the primary seeding rear housing are fixedly connected to form a cylindrical chamber, and the seeding disc is arranged in the cylindrical chamber, and an upper seed cleaning mechanism, a lower seed cleaning mechanism and a flexible seed partition plate are arranged between the primary seeding front housing and the seeding disc, and a sealing gasket, a negative pressure shell assembly and a flexible seed unloading mechanism are arranged between the seeding disc and the primary seeding rear housing. The high-speed, precision and low-loss seeding operation of peanuts is realized, the efficiency of peanut seeding is improved, and it is beneficial to improve the level of mechanized peanut planting and enhance the comprehensive production capacity of peanuts.

The utility model relates to the technical field of glue processing, in particular to a glue stirrer capable of dispersing quickly, which is characterized in that a first rotating shaft and a second rotating shaft are arranged in a stirring barrel, second stirring blades are arranged on the surface of the first rotating shaft, and first stirring blades are arranged on the surface of the second rotating shaft; second stirring blades are arranged in the middles of the surfaces of the bottoms of the first stirring blades, first stirring blades are arranged on the two sides of the surfaces of the tops of the second stirring blades, and the first stirring blades and the corresponding second stirring blades are arranged in a staggered mode. By arranging the first stirring blade, the second stirring blade, the first stirring blade and the second stirring blade, the disturbance effect on raw materials is better, the raw materials can be quickly dispersed, and the stirring efficiency is improved; and the sealing cover is arranged on the output shaft of the hydraulic cylinder, so that the mixing drum can be effectively sealed during working.

The invention discloses a three-sleeve millichannel reactor which comprises a reaction unit, a reaction liquid supply unit and a constant-temperature liquid supply unit, the reaction unit comprises a first pipe body, a second pipe body and a third pipe body which are sequentially sleeved from inside to outside; the outer wall of the first pipe body and the inner wall of the second pipe body form a first annular space; the outer wall of the second pipe body and the inner wall of the third pipe body form a second annular space; the reaction liquid supply unit and a liquid inlet of the first annular space can be connected and disconnected, and the constant-temperature liquid supply unit and a liquid inlet of the second annular space can be connected and disconnected; a first turbulent flow assembly is arranged in the first annular space, and a second turbulent flow assembly is arranged at a liquid inlet of the first annular space; the second turbulent flow assembly comprises a first channel and a second channel; the first channel is communicated with the first pipe body, and the second channel is communicated with the first annular space. According to the reactor, through the design of the multi-layer sleeve structure, the turbulent flow assembly and the liquid inlet, the mixing uniformity degree of reactants in the first annular space is promoted, and a powerful guarantee is provided for efficient chemical reaction.

The invention discloses a wave-shaped heat dissipation structure with a turbulent flow rib and wall surface coupling design, which comprises a cooling channel, the cooling channel is composed of a top wall, a bottom wall, a left side wall and a right side wall, the opposite surfaces of the top wall and the bottom wall are parallel horizontal surfaces, the opposite surfaces of the two side walls are symmetrically arranged vertical bionic wave-shaped surfaces, and the vertical bionic wave-shaped surfaces are parallel vertical bionic wave-shaped surfaces. The top wall and the bottom wall are symmetrically provided with two bionic wavy turbulent flow ribs, the sine wave X-axis of each turbulent flow rib coincides with the symmetrical center line of the two side walls, the wave crest (valley) of each turbulent flow rib coincides with the X-axis position of the wave crest (valley) of one side wall face, two rib blocks are arranged in each period of the sine wave of each turbulent flow rib, and the wave crest (valley) of each turbulent flow rib coincides with the X-axis position of the wave crest (valley) of the other side wall face. And a gap is formed between every two adjacent rib blocks. Compared with a continuous wave-shaped rib, due to the fact that the notches are increased, the disturbance effect on cold air is improved, mass exchange between cold air in the discontinuous area of the ribbed wall face and a main stream is obviously promoted, and the heat exchange performance of the ribbed wall face is improved.