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87results about How to "Avoid spoilers" patented technology
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Video comment information processing method and apparatus
InactiveCN105916037AImprove experienceGuaranteed synchronizationSelective content distributionInformation processingComputer science
The embodiments of the invention provide a video comment information processing method and apparatus. The method comprises the following steps: arranging a comment area at a preset position of a video play page; obtaining comment information of a video and configuration information associated with the comment information of the video; and according to the configuration information associated with the comment information of the video, displaying the comment information of the video in the comment area. The video comment information processing method and apparatus provided by the embodiments of the invention can enable users to communicate and interact with other users about the comment information of the video in real time in a video watching process.
Owner:LETV INFORMATION TECH BEIJING
Lamps and their radiators
InactiveCN102261572AImprove liquidityImprove cooling effectLighting heating/cooling arrangementsElectric lightingEngineeringHeat spreader
The invention relates to a light fitting and a heat radiator thereof. The light fitting comprises an outer cover, the heat radiator, a fan and a light emitting element; the outer cover is provided with an opening and an indent containing chamber; the heat radiator is arranged at the opening, and is provided with a side wall; the side wall is internally provided with a seat body; a clearance is reserved between the seat body and the inner circumferential wall of the side wall; the seat body is connected to the inner circumferential wall of the side wall by virtue of a plurality of first connecting pieces, thus a first air flow channel is formed between every adjacent first connecting pieces; a plurality of second connecting pieces are radially arranged between the outer circumferential wall of the side wall and the inner wall surface of the containing chamber; the fan is positioned in the containing chamber and is positioned at one side of the heat radiator; and the light emitting element is arranged at the other side of the heat radiator. Therefore, better air circulation and heat radiation efficacy can be provided.
Owner:SUNONWEALTH ELECTRIC MACHINE IND
Flow control sleeve cylinder set
The invention relates to a flow control sleeve cylinder set which mainly comprises a base, a first sleeve cylinder, a second sleeve cylinder and a valve piston wherein the base is arranged at one channel of a valve body and is located between the inlet end and the outlet end of the channel. The first sleeve cylinder is located at the inner side of the second sleeve cylinder. Both the first sleeve cylinder and the second sleeve cylinder are provided at least two through holes. The through holes are arranged on the base at appropriate distance from each other. The top end of the valve piston is connected with one driving shaft of the valve body and can move upwardly or downwardly to the driving shaft so as to control the number of through holes to be communicated of the first sleeve cylinder and the second sleeve cylinder. For the structure provided by the invention, not only a two layer sleeve cylinder structure is provided to prevent interfering flow and to achieve best effect of flows. In addition, for the free change and arrangement of sleeve cylinders, the pipelines of liquid equipment can correspond to requirement of flow characteristics. Capable of being conveniently adopted to various valves, the convenience of the application of the invention can be increased.
Owner:METAL INDS RES & DEV CENT
Heat radiator of lamp
InactiveCN103244928AImprove liquidityImprove cooling effectLighting heating/cooling arrangementsHeat spreaderPhysics
A heat radiator of a lamp is provided with a side wall, a base, a plurality of first connectors, a plurality of first airflow passages and a second connector. The base is arranged in the side wall by reserving a gap with the inner peripheral wall of the side wall and is connected to the inner peripheral wall of the side wall by the aid of the first connectors, one first airflow passage is formed between any two adjacent first connectors in the gap, and the second connector is arranged on the outer peripheral wall of the side wall. The heat radiator is assembled in the lamp and is better air flowing and heat radiating effect.
Owner:SUNONWEALTH ELECTRIC MACHINE IND
Automatic paint spraying device for hardware processing
ActiveCN111701778AImprove cleanlinessEasy accessPretreated surfacesCleaning using gasesEngineeringDust particles
The invention provides an automatic paint spraying device for hardware processing, relates to the technical field of automatic mechanical processing, so as to solve the problems that because a workpiece has small volume and high requirement for smoothness of the paint surface, during paint spraying, once dust particles carried in the air fall on the hardware workpiece, convex particles are prone to producing, the quality of a paint film is affected, moreover, the splashed paint liquid is prone to flying to surrounding operators, and the operators are adversely affected. The automatic paint spraying device comprises a base; and a paint spraying table is horizontally and fixedly installed at the part, close to the left, of the middle of the top plane of the base. According to the automatic paint spraying device, since horizontal clamping plates are correspondingly and fixedly installed at the front end edge and the rear end edge of the paint spraying table on the top plane of the base, arack is fixedly installed on a sliding table seat at the rear side of a travel hole, a protective cover can be driven to move through the movement of the sliding table seat, thus during paint spraying, the protective cover can cover the workpiece, when paint spraying is finished, the protective cover can move to the right end with the sliding table seat, and the workpiece is conveniently taken.
Owner:浙江华鑫拉链有限公司
Bending and torsion composite piezoelectric energy harvester capable of improving energy harvesting capability
InactiveCN110429864AReduce turbulenceAvoid spoilersPiezoelectric/electrostriction/magnetostriction machinesCantilevered beamUnderwater
The invention provides a bending and torsion composite piezoelectric energy harvester capable of improving energy harvesting capability, belongs to the technical field of water flow and air flow induced vibration energy harvesting and solves the problem that a conventional single piezoelectric cantilever beam is low in energy harvesting efficiency, and the problems that a series-type piezoelectricenergy harvester only perform bending motion, there is no influence relation between the cantilever beams, the series structure occupies large area, and structure stiffness is reduced easily by the series state, which causes structure instability. The technical main points are that a transverse piezoelectric cantilever and a longitudinal piezoelectric cantilever are arranged in a vertically-intersecting manner, achieve linkage through a positioning limiter and can carry out bending and torsion motion at the same time; a pin fin is connected in series with one end of the transverse piezoelectric cantilever, and the series connection direction is same as the water flow and air flow direction; the other end of the transverse piezoelectric cantilever establishes connection with a base througha main clamp; and the longitudinal piezoelectric cantilever establishes connection with the base through an auxiliary clamp. The bending and torsion composite piezoelectric energy harvester can perform bending and torsion motion simultaneously, thereby helping to improve energy harvesting efficiency; and the energy harvester can be widely used for harvesting energy underwater or in the air.
Owner:HARBIN INST OF TECH
Bottom boundary layer in-situ observation system suitable for shallow water viscous seabed and arrangement method thereof
ActiveCN111121730ARealize functionLow costMeasuring open water movementBulkheads/pilesObservation systemMechanical engineering
The invention provides a bottom boundary layer in-situ observation system suitable for a shallow water viscous seabed and an arrangement method thereof. A hydraulic pile foundation system which is easy to manufacture, low in cost and easy to operate is established, the piling depth can be guaranteed, the anti-sedimentation and stability functions of the seabed observation system are achieved, andpiling of the designated number and positions can be conducted according to needs when the observation system is arranged; a stainless steel pipe free assembly means is adopted, an instrument arrangement area and a turbulence-free observation area are built, integration of various instruments is achieved, turbulence influences of an instrument frame body on an observation space are avoided, and the instrument arrangement area can be adjusted and matched according to user requirements; the observation frame supporting legs and the top ends of the bottom piles are systematically fixed through the foot plates, limitation of the weight of an observation system is avoided, and the defects of a settlement plate are overcome. All the components are convenient to replace or maintain, the cost is low, the bottom boundary layer in-situ observation system can be widely applied, and the problems of full-layer, multi-parameter, continuous, stable, high-cost and the like of bottom boundary layer in-situ observation are effectively solved.
Owner:OCEAN UNIV OF CHINA
Cooling fan
Owner:ADDA
Blowing fan
InactiveCN101818739AIncrease air volumeReduce wind shear noisePump componentsRadial flow pumpsImpellerStator
The invention relates to a blowing fan which comprises a shell seat, a stator and an impeller, wherein the shell seat is provided with a containing space, the stator and the impeller are arranged in the containing space, the shell seat is additionally provided with an air inlet and an air outlet which are communicated with the containing space, the impeller is provided with a hub and a plurality of fan blades, the fan blades are connected with the hub, one end of the top edge of each fan blade is an air inlet end which is arranged near the air inlet of the shell seat, an air gap is arranged between the top edge of each fan blade and the top of the shell seat, the air inlet end of the top edge has the shortest distance with the top of the shell seat, and the width of the air gap ranges from 0.3 mm to 2.0 mm, thereby reducing generation of disturbed flows and noise.
Owner:SUNONWEALTH ELECTRIC MACHINE IND
Fan
ActiveCN102465894AAvoid spoilersImprove cooling effectPump componentsPump installationsStatorEngineering
The invention discloses a fan, which comprises a fan frame and a motor, wherein an accommodating space is formed inside the fan frame, in addition, the fan frame is provided with at least one side air inlet and at least one side air outlet communicated with the accommodating space, the motor is combined with the accommodating space of the fan frame and comprises a stator and a fan wheel, the fan wheel is rotatablely combined with the stator, the fan wheel is provided with a wheel hub and a plurality of blades, the wheel hub is provided with a top surface, each blade is respectively positioned on the top surface of the wheel hub, each blade respectively comprises a first end and a second end in the radial direction of the fan wheel, the first end and the second end are opposite, the first end of each blade is in outward arrangement, and a flow guide space is formed among the second ends of all blades. Therefore, the occurrence of the turbulent flow phenomenon is effectively prevented, and the heat radiation effect can also be improved.
Owner:SUNONWEALTH ELECTRIC MACHINE IND
Reliable braking fast falling preventing hanging basket device for building construction
The invention discloses a reliable braking fast falling preventing hanging basket device for building construction. The reliable braking fast falling preventing hanging basket device for building construction comprises a base, rolling wheel mechanisms, a driving motor, a hanging basket, a coiling wheel and a fast falling preventing device; a sliding base is arranged on a slide rail on the left side of the top of the base in cooperation; a main braking shaft and an auxiliary braking shaft are installed on the right side of a second support on the sliding base; the fast falling preventing deviceis supported and fixed to the right side of the top of the base through a first support; a coiling shaft is installed on the middle portion of the fast falling preventing device; a driven gear is installed on the portion, on the left side of the fast falling preventing device, of the coiling shaft and is connected with a driving gear installed on a driving shaft of the driving motor in an engaged manner; the coiling wheel is installed on the portion, on the right side of the fast falling preventing device, of the coiling shaft; a rope is connected to the coiling wheel in a winding manner; the hanging basket is arranged at the other end of the rope; and the rolling wheel mechanisms are arranged on the bottom outer ring of the base. The reliable braking fast falling preventing hanging basket device for building construction is stable and reliable, high in braking stability and capable of preventing the hanging basket from falling fast during a fault of the device, and a safety guarantee is provided for building construction.
Owner:九江市建设监理有限公司
Data interaction method and device
ActiveCN106302463AAvoid spoilersOvercoming the problem of inconsistency in interactive contentTransmissionSelective content distributionHuman–computer interactionInteraction method
The invention discloses a data interaction method and device. The method comprises the steps: obtaining an interaction request sent by a first client in a process that the first client which employs a first account number for logging-in plays a media file, wherein the interaction request comprises the first play position where the first client plays the media file, and is used for requesting for obtaining the first interaction data published at a first conversation when a second employing a second account number for logging-in plays the media file; judging whether a pushing condition for pushing the first interaction data to the first client is met or not according to the first play position, wherein the pushing condition is used for controlling the first client to receive the first interaction data behind a target play position of the media file, and the target play position is located behind the first play position; and pushing the first interaction data to the first client when the pushing condition is met. The method solves a problem that the contents of interaction among different clients cannot remain consistent based on live broadcast during the data interaction.
Owner:TENCENT TECH (SHENZHEN) CO LTD
Direct liquid cooling laser gain device based on split type flow channel
ActiveCN111313213AHigh densityImprove cooling effectLaser cooling arrangementsDirect liquid coolingLaser light
The invention discloses a direct liquid cooling laser gain device based on a split type flow channel. The device comprises a device outer frame, a device inner frame, a crystal barrier strip, an incoming flow guide cone, a homogenizing grid, a micro-channel separation strip, a dissipation section crystal, a light transmission window, a laser gain crystal, a recovery section crystal and an outflowcone. Cooling liquid flows into the device outer frame after being shunted by an in-cone flow guide plate in the incoming flow guide cone, and enters the device inner frame after being homogenized bythe homogenizing grid. In a micro-channel of the inner frame, turbulent flow is further dissipated by flowing through a dissipation section crystal area firstly, the speed uniformity of liquid reaching the gain crystal in the spanwise direction is guaranteed, and the liquid flows out of the device inner frame after passing through the recovery section crystal. A small amount of liquid flows out through a gap between the inner frame and the outer frame of the device and is used for cooling the laser light transmission window. All liquid flows out of the device after being converged at the outflow cone. The device is compact and small in structure, and the flow velocity of liquid passing through the gain medium can be uniform.
Owner:INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
Frameless detachment-free rotary air heater
InactiveCN102162647ASpeed up the flowAvoid spoilersCombustion processIndirect carbon-dioxide mitigationEngineeringHeat transfer tube
The invention discloses a frameless detachment-free rotary air heater, which consists of 3 to 8 groups of outer fin reinforced heat transfer tube bundles, wherein each group of heat transfer tube bundle has a frameless self-supporting structure consisting of spiral fin heat transfer tube bundles welded on a thin-walled inlet steam collecting tank and a thin-walled drainage collecting tank respectively, and the heat transfer tube bundles are averagely distributed in a primary air flue and a secondary air flue; any heat transfer tube bundle can rotate separately in a full angle of 360 degrees by adopting the self-supporting stable structure of the tube bundle so as to solve the problems that separate rotation of the heating surface of a certain stage cannot be realized, rotation in the full angle of 360 degrees cannot be realized, the heating surface cannot be rotated without cutting off steam, the operation part has complex structure and is not easily detached or maintained and ash blockage, leakage and fin deformation are caused; and the rotary air heater is frameless and detachment-free, can rotate in the full angle of 360 degrees, and is convenient to maintain.
Owner:XI AN JIAOTONG UNIV +1
Walk-in test box for ultraviolet aging test of photovoltaic module
PendingCN111413271AStable test temperatureHigh precisionPhotovoltaic monitoringWeather/light/corrosion resistanceUltravioletDisplay device
The invention relates to a walk-in test box for an ultraviolet aging test of a photovoltaic module, which comprises a test box, an ultraviolet lamp tube arranged in the test box, and a test platform for placing a photovoltaic module to be tested. Monitoring equipment is also arranged in the test box; the monitoring equipment comprises an ultraviolet irradiance detection probe and a digital monitoring display; the ultraviolet irradiance detection probe comprises a UV-A probe and a UV-B probe; the UV-A probe is used for detecting the irradiation amount for the wavelength of 320 to 400 nm; the UV-B probe is used for detecting the irradiation amount for the wavelength of 280 to 320 nm; the UV-A probe and the UV-B probe are arranged in the test box and are connected with the digital monitoringdisplay arranged outside the test box, and the digital monitoring display is used for receiving signals of the UV-A probe and the UV-B probe and displaying the irradiance detected by the UV-A probe and the UV-B probe. Compared with the prior art, the test capability can be improved, and the convenience of operation and maintenance can be improved.
Owner:TUV RHEINLAND SHANGHAI
Turbo fan type sand washing sand water separation device
ActiveCN107262266BEliminate energy shockAvoid spoilersWet separationWave shapePulp and paper industry
Owner:CRRC CONSTR ENG CO LTD
Array arrangement type piezoelectric energy harvester applied to non-directional flow
ActiveCN109951106ARealize Periodic OscillationIncentives are simplePiezoelectric/electrostriction/magnetostriction machinesGear transmissionVibration energy harvesting
The invention discloses an array arrangement type piezoelectric energy harvester applied to the non-directional flow, and belongs to the technical field of water flow and air flow induced vibration energy harvesting. The invention aims to solve the problems in the prior art that although most existing energy harvesters in the flow induced vibration energy harvesting field can realize the good energy harvesting effect, the energy harvesters are fixed and cannot be applied to the non-directional flow, thus being limited in application range. According to the technical scheme of the invention, the energy harvester comprises a plurality of piezoelectric vibrators, an array clamp mechanism, a guide wing mechanism, a gear transmission mechanism and a shell. The gear transmission mechanism is arranged in the shell. A gear transmission set comprises a plurality of driving gear shafts and a driven gear shaft. The guide wing mechanism penetrates through the shell to be connected with the drivinggear shafts. The upper end of the driven gear shaft penetrates out of the shell to be connected with the array clamp mechanism. The piezoelectric vibrators are arranged on the array clamp mechanism.The guide wings of the guide wing mechanism are located between the array clamp mechanism and the shell. The array arrangement type piezoelectric energy harvester is applied to the non-directional flow, wherein the motion states of the vibrators can be mutually coupled. The energy harvesting efficiency can be improved.
Owner:HARBIN INST OF TECH
VTOL fixed wing unmanned aerial vehicle and fixed wing structure thereof
InactiveCN108033012ACompact structureGood handling performanceAircraft controlSpars/stringersTrailing edgeFuselage
The invention relates to the field of unmanned aerial vehicle structures and aims to solve a problem that an aileron handling performance of a fixed wing unmanned aerial vehicle in the prior art is poorer, and provides a VTOL fixed wing unmanned aerial vehicle and a fixed wing structure thereof. The fixed wing structure comprises a main wing and an aileron movablely hinged at a trailing edge of the main wing. The aileron comprises a spar, a plurality of ribs arranged along the spar's lengthwise direction at intervals and attached to the spar, and a skin covering the outer surface of the ribs.The aileron is connected with the main wing through a rotating shaft in a rotating mode; an axis of the rotating shaft is along the chord direction of the main wing and is located between the spar andthe main wing. The main wing is connected with the aileron to the spar through a drive mechanism in a transmission mode; the drive mechanism is connected between the bottom surface of the trailing edge and the spar, for driving the aileron to swing around the rotating shaft. The VTOL fixed wing unmanned aerial vehicle comprises a fuselage and fixed wing structures on both sides. The VTOL fixed wing unmanned aerial vehicle and the fixed wing structure thereof have the beneficial effects of compact structure, neat appearance and good maneuverability.
Owner:四川宝天智控系统有限公司
Horizontal convection fan and frame seat thereof
ActiveCN102635560AAvoid suction effectsAvoid spoilersPump componentsRadial flow pumpsEngineeringReverse airflow
The invention discloses a horizontal convection fan which comprises a frame seat, a fan wheel and a cover plate, wherein the frame seat is provided with an axle seat on a bottom plate; the axle seat is rotatably provided with the fan wheel; the bottom plate is provided with a side wall on the peripheral edge of the axle seat; the side wall is provided with a flow guide part, an obstructing part and a shunting part; a wind inlet is formed between the flow guide part and the obstructing part; a wind outlet is formed between the flow guide part and the shunting part; the obstructing part is provided with a first end adjacent to the wind inlet, and a second end facing the air outlet; the shunting part is arranged on the second end; and the cover plate is arranged on the top surface of the side wall of the frame seat. According to the horizontal convection fan, the reverse airflow of the horizontal convection fan can be reduced by the obstructing part and the shunting part, and turbulent flow is avoided.
Owner:SUNONWEALTH ELECTRIC MACHINE IND
Air-exhaust-type wind-sand flow gradient high sand-collecting rate device for wind-sand environment wind tunnel
The invention relates to an air-exhaust-type wind-sand flow gradient high sand-collecting rate device for a wind-sand environment wind tunnel. The air-exhaust-type wind-sand flow gradient high sand-collecting rate device is characterized in that a sand dust gradient collector is provided with wind-sand flow sand inlets, gradient channels communicate with the wind-sand flow sand inlets, collector placing openings are connected with the gradient channels, air-exhaust connecting pipes are mounted on gradient leaking nozzles exposed out of the collector placing openings correspondingly, the gradient leaking nozzles are perpendicular to the bed surface downwards and are connected with the air-exhaust connecting pipes, the air-exhaust connecting pipes are connected with wind-sand flow air-exhaust branch pipes, wind-sand flow separating tanks of the respective channels sleeve outlets of the wind-sand flow air-exhaust branch pipes, the wind-sand flow separating tanks communicate with weighingbottles, high-precision weighing sensors are placed at the bottoms of the weighing bottles, and the sand delivery amounts in the weighing bottles are measured by the high-precision weighing sensors. According to the air-exhaust-type wind-sand flow gradient high sand-collecting rate device, the measured sand delivery amounts are precise and errorless, and data support is provided for disclosing thechange law that a wind-sand flow passes through a flow field and for researching the relation between the wind speed and a soil structure as well as the relation between the soil water content and soil wind erosion.
Owner:COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE
Fixed wing type unmanned aerial vehicle
InactiveCN104369858AImproved route stabilityImproved deep stall performanceAircraft stabilisationJet aeroplaneNacelle
The invention relates to a fixed wing type unmanned aerial vehicle belonging to the technical field of an unmanned aerial vehicle. With the adoption of the high and flat empennage, the deep stall performance of the aerial vehicle can be improved; the turbulent flow of the wing can be effectively avoided through the horizontal empennage, so that the stability of the aerial vehicle can be ensured. The fuselage adopts the large structure design, so that each component of the cabinet is structurally enlarged. Therefore, the aerial vehicle can bear more equipment and instruments; correspondingly, the endurance of the aerial vehicle is prolonged by adding an oil material amount, so that the operation time of the aerial vehicle is enough; the aerial vehicle is relatively stable in a landing run process through a front-three-point type undercarriage.
Owner:天津三爻航空航天科技发展有限公司
Mira separation structure model for air automotive aerodynamics research
PendingCN110082061AAvoid interferenceLight structureAerodynamic testingMeasurement deviceEngineering
The invention proposes a Mira separation structure model for air automotive aerodynamics research. The Mira separation structure model comprises a main body, a tail cover, an intermediate plate and abottom plate, wherein the main body is an automotive body model framework, a front half part of the main body is an engine cabin and driver cabin, the engine cabin and the driver cabin both are cavities, a passenger cabin and a rear compartment position of a rear half part of the main body are cavities, the intermediate plate, the bottom plate and the main body are spliced to seal the cavity, a mortise is arranged on a back surface of a front row part of the passenger cabin, the tail cover is arranged on the intermediate plate, a tenon is arranged at a front end of the tail cover and is inserted into the mortise on the back surface of the front row part of the passenger cabin, an outer surface is flush after an edge of a lower end of the tail cover is spliced with a rear half part framework of the main body, and a plurality of pressure measurement holes are formed in each surface of the automotive body. By the model, the model weight is greatly reduced, and carrying and adjustment arefacilitated; and meanwhile, a measurement device is also convenient to install in the model, turbulent flow caused by an external measurement device to intervene experiment data can be prevented, thetail cover can be replaced, and comparison research is performed.
Owner:HUNAN UNIV
Injector for injecting high-pressure fuel into the combustion chamber of an internal combustion engine
ActiveCN102165176AExtend your lifeAvoid breakingMachines/enginesSpecial fuel injection apparatusRotational axisCombustion chamber
The invention relates to an injector for internal combustion engines, comprising a control chamber (12) of a valve control piston (8), said chamber being associated with an inlet bore (20) comprising an inlet throttle (26) for supplying high-pressure fuel and an outlet bore (14) comprising an outlet throttle (42), said outlet bore capable of being closed by a control valve. The high-pressure fuel flowing through the inlet bore (20) is introduced eccentrically into the control chamber (12) and produces within the control chamber (12) a swirling flow, the rotational axis of which extends coaxially to the axis (36) of the outlet bore (14).
Owner:ROBERT BOSCH GMBH
Radiator fan
ActiveCN102465900ANot easily hinderedAvoid spoilersPump componentsPump installationsImpellerEngineering
A radiator fan comprises a frame and a motor, wherein the frame comprises a carrying part, an enclosed part and a side wall part, wherein an accommodation space is formed among the carrying part, the enclosed part and the side wall part; and at least one side air inlet and at least one side air outlet are arranged on the side wall part; the motor is combined in the accommodation space of the frame, the motor comprises a stator and an impeller (namely a rotor), the impeller is rotatably combined with the stator, a hub and a plurality of blades are arranged on the impeller, the impeller is provided with a top surface, the top surface faces to the enclosed part, between the top surface and the enclosed part, a lateral flow passage is formed in the accommodation space through partitioning, and each blade is positioned inside the lateral flow passage. Therefore, the phenomenon of turbulence is effectively prevented, and the radiating effect is improved.
Owner:SUNONWEALTH ELECTRIC MACHINE IND
Fan casing base
Owner:SUNON ELECTRONICS KUNSHAN
Modular directional flow pipeline type piezoelectric energy harvester arranged in a circumferential array
ActiveCN110380645AReduce distractionsReduces interference while reducing overall structural massPiezoelectric/electrostriction/magnetostriction machinesCurrent limitingPiezoelectric actuators
The invention relates to a modular directional flow pipeline type piezoelectric energy harvester arranged in a circumferential array, which belongs to the technical field of water flow and air flow induced vibration energy harvesting and solves the problems that energy harvesters in the existing flow-induced energy harvesting are mostly fixed, the mutual coupling relation is difficult to adjust and that the application limitation is large. The piezoelectric energy harvester comprises a flow-gathering and speed-accelerating coil and at least one piezoelectric module, the piezoelectric modules are connected in series when there are two or more piezoelectric modules, each piezoelectric module includes a plurality of piezoelectric vibrators, a central support, a current-limiting outer ring andconnecting screws; the central support and the current-limiting outer ring are coaxially arranged inside and outside and are connected through a plurality of connecting screws, and the plurality of piezoelectric vibrators are arranged in a circumferential array between the central support and the current-limiting outer ring; the flow-gathering and speed-accelerating ring is coaxially arranged onthe outer end face of the current-limiting outer ring on the incoming side; and a plurality of long holes are formed in the central support along the circumferential direction of the central support.The piezoelectric energy harvester can be widely applied to energy collection in the fields of stream pipelines, distillation pipelines, tap water pipelines, exhaust pipelines and the like.
Owner:HARBIN INST OF TECH
Polishing solution circulation purification processing device
ActiveCN110339620AImprove separation efficiencyAvoid spoilersFiltration circuitsThree levelProcess engineering
The invention discloses a polishing solution circulation purification processing device. The polishing solution circulation purification processing unit comprises a box body, a polishing solution storage tank is arranged at the bottom of one side of the box body, a polishing solution separating device is arranged at the top of the polishing solution storage tank, the polishing solution storage tank is internally provided with a polishing solution stirring unit, a polishing solution proportion stirring unit is arranged at the bottom of the other side of the box body, and a polishing solution sediment secondary separation unit is arranged on the upper part of the polishing solution proportion stirring unit; the polishing solution separating device comprises a rotary barrel, a rotary barrel driving motor and a lifting mechanism; and the rotary barrel comprises an inner barrel and an outer barrel. Three-level layering is generated on a waste polishing solution through matching of the polishing solution separating device and the polishing solution storage tank, the polishing solution rotating at the high speed is separated according to the abrasive particle density in the polishing solution, secondary separation can be conducted on polishing solutions which do not coincide with the requirements, abrasive particles coinciding with the using requirements are directly output, polishedand machined, and the separation efficiency is greatly improved.
Owner:NORTHEASTERN UNIV
Self-correction adjustable fire monitor head
InactiveCN110711335ARealize the adjustment of water volumeAvoid spoilersFire rescueForeign matterWater volume
The invention provides a self-correction adjustable fire monitor head. The self-correction adjustable fire monitor head comprises a water separation head module and a water separator connected in sequence, wherein the water separation head module is used for adjusting the water quantity of a water outlet, and can perform the coaxiality adjustment according to the water pressure to prevent instablewater type caused by deflection; and the water separator is used for counteracting centrifugal force generated during rotary movement of water currents to improve the agglomeration effect of water columns during injection and to reduce the friction coefficient between the water columns and air. Through arrangement of the water separation head module and twelve blades, a water separation head mainpiece moves up and down relative to a cap to adjust the water quantity and the balanced water pressure and to automatically calibrate the coaxiality of the water separation head main piece and a firemonitor so as to guarantee unified water types; and in addition, foreign matters can be prevented from entering an inner cavity of a fire monitor body to block the monitor body.
Owner:广东三方利精密技术有限公司
Range hood and integrated stove
ActiveCN110701654AAvoid wind resistanceAvoid spoilersDomestic stoves or rangesLighting and heating apparatusIndustrial engineeringWindage
The invention discloses a range hood and an integrated stove. The range hood comprises a chassis provided with a smoke inlet at one end, and a fan arranged in the chassis; an intake area is formed between an air inlet of the fan and the side wall of the chassis; a first air way and a second air way are formed between the two side outer walls of a volute of the fan and the inner wall of the chassis; the ends, far from the smoke inlet, of the first air way and the second air way communicate with the parts, far from smoke inlet, of the intake area; and an isolation piece is arranged in the intakearea for dividing the intake area into a first intake area near one side of the first air way and a second intake area near one side of the second air way. The intake area of the fan is divided intothe first intake area and the second intake area by adopting the isolation piece to prevent turbulent flows caused by intersection of air flows of two air ways and to prevent the problem of air resistance caused by the turbulent flows in the intake area.
Owner:FOSHAN SHUNDE MIDEA WASHING APPLIANCES MFG CO LTD
Liquid discharging device, filtering system and semiconductor processing equipment
ActiveCN111613558AEasy to handleAvoid spoilersSemiconductor/solid-state device manufacturingStationary filtering element filtersFilter systemGuide tube
The invention provides a liquid discharging device, a filtering system and semiconductor processing equipment, and belongs to the technical field of semiconductor processing. The liquid discharging device comprises a siphon and a guide pipe; the siphon is provided with a liquid outlet, a first liquid inlet and a second liquid inlet communicated with the first liquid inlet and the liquid outlet respectively, the guide pipe is communicated with the second liquid inlet, and when the liquid outlet is subjected to suction force, a pressure difference is formed between the first liquid inlet and thesecond liquid inlet so as to form siphon force at the second liquid inlet; and the guide pipe guides the to-be-filtered liquid under the action of siphon force, and then the to-be-filtered liquid enters the second liquid inlet and is discharged through the liquid outlet. According to the liquid discharging device provided by the invention, to-be-filtered liquid can flow into the siphon in a directional manner; the liquid to be filtered is effectively prevented from forming turbulent flow without a fixed flow direction, so that the to-be-filtered liquid effectively enters a subsequent circulating filtration system, the liquid discharge efficiency and the removal rate of reactants in the to-be-filtered liquid are improved, and the treatment effect of the semiconductor treatment equipment isfurther improved.
Owner:厦门通富微电子有限公司
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