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38 results about "Internal convection" patented technology
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14.2.2.1 Internal Convection. Internal convection heat transfer occurs between the fluid flowing in a pipe and the pipe internal surface; it depends on the fluid properties, the flow velocity, and the pipe diameter.
Turbine Airfoil with an Internal Cooling System Having Enhanced Vortex Forming Turbulators
ActiveUS20100226761A1Highly effective conventionHigh internal convective cooling potentialPump componentsEngine fuctionsHigh rateTurbine
A turbine airfoil usable in a turbine engine and having at least one cooling system. At least a portion of the cooling system may include one or more cooling channels having a plurality of turbulators protruding from an inner surface and positioned generally nonorthogonal and nonparallel to a longitudinal axis of the airfoil cooling channel. The cooling channel may also include a plurality of vortex enhancers protruding from an inner surface forming the cooling channel and positioned nonparallel to the turbulators. In one embodiment, the vortex enhancers may be positioned generally orthogonal to the turbulators. The configuration of turbulators and vortex enhancers creates a higher internal convective cooling potential for the blade cooling passage, thereby generating a high rate of internal convective heat transfer and attendant improvement in overall cooling performance. This translates into a reduction in cooling fluid demand and better turbine performance.
Owner:SIEMENS ENERGY INC
Turbine airfoil with an internal cooling system having vortex forming turbulators
InactiveUS20130236330A1Efficient overall cooling system performanceReduction in cooling demandBlade accessoriesMachines/enginesHigh rateTurbine
A turbine airfoil usable in a turbine engine and having at least one cooling system is disclosed. At least a portion of the cooling system may include one or more cooling channels having a plurality of turbulators protruding from an inner surface and positioned generally nonorthogonal and nonparallel to a longitudinal axis of the airfoil cooling channel. The configuration of turbulators may create a higher internal convective cooling potential for the blade cooling passage, thereby generating a high rate of internal convective heat transfer and attendant improvement in overall cooling performance. This translates into a reduction in cooling fluid demand and better turbine performance.
Owner:SIEMENS ENERGY INC
Light-emitting diode (LED) bulb with internal convection radiating structure and LED light source device
InactiveCN103244933APoint-like light sourceLighting heating/cooling arrangementsHeat transmissionLED lamp
The invention discloses an LED bulb with an internal convection radiating structure and an LED light source device. The LED bulb comprises a drive circuit (6), a lamp housing (8), a photo-permeable bulb housing (3), a radiator (7) and a heat transmission tube (2). The radiator (7) is connected with the lamp housing, the heat transmission tube (2) is connected onto the radiator, and an LED luminescent tube (4) is mounted on the heat transmission tube. A hole is opened at the top of the photo-permeable bulb housing (3), so that the top of the heat transmission tube is connected with an air flow net (1), and air penetrates through the air flow net and flows through the interior of the heat transmission tube continuously to form an air flow (A). Further, a circle of air flow groove (B) is arranged at the position where the radiator is connected with the photo-permeable bulb housing, and at least one air flow hole (C) can be arranged on the plastic lamp housing (8). The three kinds of air flow holes of A, B and C form a convection radiating channel.
Owner:ZHEJIANG MINGXIN SEMICON TECH
Tapered inclined exhaust splitting seam structure for turbine blade trailing edge
InactiveCN110925027AIncrease flow rateReduce blending lossBlade accessoriesMachines/enginesTurbine bladeCooling effect
The invention belongs to the technical field of aero-engine turbine cooling, and relates to a tapered inclined exhaust splitting seam structure for a turbine blade trailing edge. The inclined exhaustsplitting seam structure comprises a hollow turbine blade, an inner cavity cool air channel, a trailing edge exhaust splitting channel and trailing edge splitting seam partition ribs, wherein the inner cavity cool air channel is formed inside the hollow turbine blade, the trailing edge of the hollow turbine blade is provided with the trailing edge splitting seam partition ribs arranged side by side, and the trailing edge exhaust splitting seam channel is formed between the trailing edge splitting seam partition ribs arranged side by side for allowing cooling air to be discharged out of the blade and meanwhile carrying out air film coverage cooling on the blade trailing edge. According to tapered inclined exhaust splitting seam structure for the turbine blade trailing edge, the cool air canflow much smoothly, so that flow resistance and loss of the cool air in an cavity of the blade is reduced, and the flow resistance can be reduced by about 16%; and through designing an inclined exhaust trailing edge splitting seam into a tapered structure, the outflow speed of the cool air can be improved, internal convection heat exchange is strengthened, an air film coverage dead zone is reduced, in this way, comprehensive cooling effects of the blade trailing edge is further improved while blending loss is reduced, and heat exchange can be enhanced by about 8%.
Owner:DALIAN UNIV OF TECH
Door and window air purification device
The invention discloses a door and window air purification device, which comprises a hollow frame body, a first air port and a second air port are arranged on the frame body, and the frame body located between the first air port and the second air port There is a channel for air convection inside, and an air cleaning device is provided on the channel, so that when the door and window air cleaning device is installed on the frame of a door and window, indoor and outdoor air can not only pass through the door and window In addition to convection generated by the air purification device, it can also purify and remove harmful gases and substances flowing through the passage.
Owner:TAROKO DOOR & WINDOW TECH
Waterproof Boot With Internal Convection System
Disclosed is a waterproof shoe with an improved ventilation mechanism, designed to circulate air from the outside environment through the shoe in order to provide convective cooling to a wearer's foot. In a desired embodiment, the shoe may incorporate a pump-ventilation mechanism which, coupled with airflow channels incorporated in the upper, acts to establish continuous substantially one-way airflow through the shoe in a heel-to-toe direction while a user walks.
Owner:TBL LICENSING
Electromagnetic suspension system for overlaying transverse rotating static magnetic field
InactiveCN103532443AReduce convectionExternal rotation reductionMagnetic holding devicesStellar magnetic fieldHigh frequency power
Owner:CHONGQING UNIV
Rotatable heat sink with internal convection
InactiveCN107193175AEasy to operate mechanicallyLighting heating/cooling arrangementsProjectorsRotational axisEngineering
According to the present specification there is provided a rotatable heat sink device which comprises a heat sink configured to enclose a cooling fluid, and the heat sink is rotatable about a rotational axis. The heat sink, in turn, comprises a first portion configured to receive thermal energy from a source external to the heat sink, and a second portion configured to dissipate at least a portion of the thermal energy to surroundings external to the device. The device further comprises an optical wavelength conversion material disposed on an outside surface of the first portion of the heat sink, and an agitator disposed inside the heat sink. The agitator is rotationally independent of the heat sink and is configured to promote circulation of the cooling fluid between the first portion and the second portion.
Owner:CHRISTIE DIGITAL SYST USA INC
Turbine airfoil with an internal cooling system having enhanced vortex forming turbulators
ActiveUS8167560B2Improve performanceIncrease the internal convective cooling potentialPump componentsEngine fuctionsHigh rateTurbine
A turbine airfoil usable in a turbine engine and having at least one cooling system. At least a portion of the cooling system may include one or more cooling channels having a plurality of turbulators protruding from an inner surface and positioned generally nonorthogonal and nonparallel to a longitudinal axis of the airfoil cooling channel. The cooling channel may also include a plurality of vortex enhancers protruding from an inner surface forming the cooling channel and positioned nonparallel to the turbulators. In one embodiment, the vortex enhancers may be positioned generally orthogonal to the turbulators. The configuration of turbulators and vortex enhancers creates a higher internal convective cooling potential for the blade cooling passage, thereby generating a high rate of internal convective heat transfer and attendant improvement in overall cooling performance. This translates into a reduction in cooling fluid demand and better turbine performance.
Owner:SIEMENS ENERGY INC
Combined fan and ejector cooling
ActiveUS20140272745A1Rapid and uniform coolingMuffle furnacesMaintainance of heating chambersEngineeringInternal convection
A pressing arrangement for treatment of articles by hot pressing includes a pressure vessel including a furnace chamber and a furnace to hold the articles. A fan circulates a pressure medium within the furnace chamber, and enhances an inner convection loop at a load compartment. The inner convection loop pressure medium has an upward flow through the load compartment, and a downward flow along a peripheral portion of the furnace chamber. A flow generator generates a flow of pressure medium into the load compartment downstream the fan to enhance the inner convection loop. The flow is generated by transporting the pressure medium upwards from a space below a bottom insulating portion and above a bottom end portion, and by injecting the pressure medium into the load compartment downstream the fan to enhance the inner convection loop.
Owner:QUINTUS TECH
Turbine airfoil with an internal cooling system having vortex forming turbulators
InactiveUS8920122B2Reduce heat transferDissipate boundary layers of cooling fluidsBlade accessoriesMachines/enginesHigh rateTurbine
A turbine airfoil usable in a turbine engine and having at least one cooling system is disclosed. At least a portion of the cooling system may include one or more cooling channels having a plurality of turbulators protruding from an inner surface and positioned generally nonorthogonal and nonparallel to a longitudinal axis of the airfoil cooling channel. The configuration of turbulators may create a higher internal convective cooling potential for the blade cooling passage, thereby generating a high rate of internal convective heat transfer and attendant improvement in overall cooling performance. This translates into a reduction in cooling fluid demand and better turbine performance.
Owner:SIEMENS ENERGY INC
Method and device for utilizing magneto-thermal convection to intensify low-temperature oxygen-containing fluid heat transfer
InactiveCN104792218AImprove heat transfer efficiencyImprove bindingHeat transfer modificationMantle convectionEngineering
The invention discloses a device for utilizing magneto-thermal convection to intensify low-temperature oxygen-containing fluid heat transfer. The device comprises two end sockets provided with heat transfer fluid outlets and inlets, and a heat transfer core located between the two end sockets. Heat transfer passages communicated with the corresponding heat transfer fluid outlets and inlets are arranged inside the heat transfer core respectively, and at least one heat transfer passage is filled with oxygen-containing low-temperature fluid. The device for utilizing magneto-thermal convection to intensify low-temperature oxygen-containing fluid heat transfer further comprises a magnetic field generation device for generating gradient magnetic field acting force on the low-temperature oxygen-containing fluid. The invention further discloses a method for utilizing magneto-thermal convection to intensify low-temperature oxygen-containing fluid heat transfer. According to the device and the method for utilizing magneto-thermal convection to intensify low-temperature oxygen-containing fluid heat transfer, a high gradient magnetic field is formed on the heat transfer surface of the outer magnet surrounding the heat transfer core, convection heat transfer is intensified on the premise of not changing the structure of a heat transfer and not introducing extra resistance, the heat transfer efficiency is improved, and the size and energy consumption of a heat exchanger are reduced.
Owner:ZHEJIANG UNIV
High-temperature-resistant parallel clamp holder
The invention discloses a high-temperature-resistant parallel clamp holder which comprises clamp beams, turning wheels, a cavity, a cavity shell, a cylinder and a central symmetry crank-slider mechanism. The clamp beams are mounted at two ends of the central symmetry crank-slider mechanism, a first gas hole and a second gas hole are formed in the cavity, the cylinder can conveniently carry out forward and reverse actions by the aid of the first gas hole and the second gas hole, and a first waste gas inlet hole, a second waste gas inlet hole and a cooling gas inlet hole are formed in the cavity shell. The high-temperature-resistant parallel clamp holder has the advantages that a hub can be clamped by the four high-temperature-resistant turning wheels, wheels with different sizes can be replaced according to the sizes of hubs, the wheels can be repositioned according to the sizes of the hubs, and clamping operation requirements of the hubs with the different sizes can be met by means of repositioning the turning wheels; internal convection heat exchange of the cavity can be intensified by the aid of the first waste gas inlet hole, the second waste gas inlet hole and the cooling gas inlet hole, so that the clamp holder cooling speed can be increased.
Owner:苏州久工自动化科技有限公司
Internal convection cell
An electrochemical cell includes a permeable fuel electrode configured to support a metal fuel thereon, and an oxidant reduction electrode spaced from the fuel electrode. An ionically conductive medium is provided for conducting ions between the fuel and oxidant reduction electrodes, to support electrochemical reactions at the fuel and oxidant reduction electrodes. A charging electrode is also included, selected from the group consisting of (a) the oxidant reduction electrode, (b) a separate charging electrode spaced from the fuel and oxidant reduction electrodes, and (c) a portion of the permeable fuel electrode. The charging electrode is configured to evolve gaseous oxygen bubbles that generate a flow of the ionically conductive medium. One or more flow diverters are also provided in the electrochemical cell, and configured to direct the flow of the ionically conductive medium at least partially through the permeable fuel electrode.
Owner:FLUIDIC
Far infrared intelligent foot massage instrument adopting internal convection streamline design
ActiveCN105194809APromote circulationBeautiful appearanceDevices for pressing relfex pointsBathing devicesOzone generatorMassage
The invention discloses a far infrared intelligent foot massage instrument adopting internal convection streamline design. The foot massage instrument comprises a spherical shell. The shell is provided with an opening. An ozone generator and a far infrared heater are arranged in the shell. The ozone generator is provided with ozone discharge openings which are distributed along the arc-shaped inner wall of the shell. According to the foot massage instrument, far infrared optical waves are utilized for stimulating acupuncture points of the human body, fatigue is effectively eliminated, blood circulation of the human body is promoted, and immunity is enhanced; the spherical appearance structure is adopted in the shell, the foot massage instrument is more attractive and elegant, the arc-shaped inner wall is beneficial for circular flow of internal air, and in this way, ozone generated by the zone generator flows along the arc-shaped inner wall of the shell after being discharged from the ozone discharge openings; meanwhile, flow of the ozone is accelerated by heat generated by the far infrared heater, and the more effective sterilization and far infrared physical therapy effects are achieved.
Owner:GUANGDONG DEZHONGTANG BIOLOGICAL TECH CO LTD
Thermoregulation window
PendingCN108756650AAvoid enteringImprove comfortDoor/window applicationsWing arrangementsEngineeringInternal convection
The invention provides a thermoregulation window. An inner frame is installed on an outer frame through a rotating assembly. The inner frame comprises an upper supporting beam and a lower supporting beam, the middle portions of the two supporting beams are connected through insulated glass. Inner glass and outer glass are separately arranged on the inner side and the outer side of the two supporting beams, an internal convection cavity is formed between the inner glass and the insulated glass, and an outer convection cavity is formed between the outer glass and the insulated glass. First ventilation openings are separately formed in the inner and outer sides of the upper supporting beam, and the two first ventilation openings separately communicate with the internal convection cavity and the outer convection cavity. Second ventilation openings are separately formed in the inner and outer sides of the lower supporting beam, and the two second ventilation openings separately communicatewith the internal convection cavity and the outer convection cavity. According to the thermoregulation window, the inner frame can rotate in the outer frame to facilitate cleaning and maintenance of the inner and outer sides of the window. A user can open the internal convection cavity and the outer convection cavity through a louver, the internal convection cavity and the outer convection cavitycan exchange heat in the form of convection, and the dust is prevented from entering while the temperature in a room can be adjusted according to season change.
Owner:SHANDONG UNIV OF SCI & TECH
Aerodynamic circulation heating device and roadbed thereof
ActiveCN112923583AHeating levelingHeating evenlySolar heating energyRoadwaysThermodynamicsEngineering
The invention provides an aerodynamic circulation heating device and a roadbed thereof, and relates to the technical field of seasonal frozen soil area engineering construction. In the design of the aerodynamic circulation heating device, one end of a solar heat absorption pipe is inserted into a heat collection box; a convection heat exchange pipe is arranged in the heat collection box and the solar heat absorption pipe, a first flow channel is formed in the convection heat exchange pipe, a second flow channel is formed by the outer wall of the convection heat exchange pipe and the outer walls of the heat collection box and the solar heat absorption pipe, and the first flow channel communicates with the second flow channel and is filled with air; a convection power element is installed in the first flow channel and used for pushing air to flow in the first flow channel and the second flow channel; and the heat absorbing section of a heat gathering pipe is inserted into the heat collection box, and a heat releasing section of the heat gathering pipe is inserted into the roadbed. According to the aerodynamic circulation heating device and the roadbed thereof, solar energy resources can be utilized, and engineering diseases such as frost heaving and non-uniform fluctuation of the roadbed in the seasonal frozen soil region can be effectively avoided through flat heating of the roadbed temperature field and key regulation and control of the easily-frost-heaving part of the roadbed.
Owner:NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
Gallium alloy heat dissipation material provided with fiber framework and production technology thereof
The invention relates to the technical field of machinery, in particular to a gallium alloy heat dissipation material and a production technology thereof. The gallium alloy heat dissipation material provided with a fiber framework comprises a carbon fiber mesh; the thickness of the carbon fiber mesh is 0.1-5 mm; the diameter difference of openings in two sides of mesh openings of the carbon fiber mesh is less than 0.2mm, and each of the diameters of the openings in two sides is 0.1-5 mm; the mesh openings are through holes with the front and back communicated; the internal diameter of each through hole is more than 1.5 times greater than the diameter of the opening in the front side; and gallium alloy is embedded in the mesh openings of the carbon fiber mesh. When gallium alloy is in the liquid state, the surface tension is extremely high, and a smaller diameter of each of the openings of the mesh openings and a larger internal diameter of each through hole are arranged, so that gallium alloy is excellently fixed in the carbon fiber mesh and can in direct contact with the external part without flowing out. Heat dissipation is realized through internal convection caused by temperature difference of liquid-state metal. Compared with solid metal, the liquid-state gallium alloy has remarkably improved heat dissipation property and is suitable for being used as heat dissipation material.
Owner:SHANGHAI ALLIED PLASTIC IND
Convection-bank heat exchange set for flue gas waste heat recovery
InactiveCN104729306AReduce the temperatureReduce peakEnergy industryIncreasing energy efficiencyCarbon compositesShock wave
A convection-bank heat exchange set for flue gas waste heat recovery comprises a flue gas inlet, a heat-accumulating temperature homogenizer, a flue gas passage, a convection pipe bank, a flue gas outlet, an ash hopper, a circulation pipe, a steam drum and a steam accumulator. The convection-bank heat exchange set is characterized in that the top of the flue gas passage is provided with the flue gas inlet, the outside of the bottom of the flue gas passage is provided with the flue gas outlet, the bottom of the flue gas passage is provided with the ash hopper, the convection pipe bank is disposed in the flue gas passage and is connected with the steam drum through the circulation pipe, the steam drum is connected with the steam accumulator through a pipe, the steam drum is disposed on the top of the outside of the flue gas passage, the heat-accumulating temperature homogenizer is disposed at the upper end of the convection pipe bank within the flue gas passage and comprises carbon-carbon composite accumulating members and a shock wave ash-remover, and the shock wave ash-remover is disposed among the carbon-carbon composite accumulating members segment by segment. The convection-bank heat exchange set has the advantages that heat in the flue gas can be recovered to the maximum extent, investment on waste heat utilization equipment is lower and the waste heat utilization equipment is more stable.
Owner:JIANGSU HONGHUA HEAVY IND
Convection portion structure of convection electronic microwave oven
InactiveCN1779343ASimple structureOmit processDomestic stoves or rangesLighting and heating apparatusMicrowave ovenElectric machine
There is disclosed a convection part structure of a convection-type electronic microwave oven, which comprises a oven body, a cavity, an electronic fitting chamber and a convection part. A motor of the convection chamber electric machine fixed in the external convection chamber and combined with the convection fan to drive the fan. A countercurrent fan disposed between the internal convection chamber and the external convection chamber for radiating the heat produced by the motor of the convection chamber. A convection chamber cover is disposed on the back side of the convection chamber for protecting the convection chamber and the members inside.
Owner:LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
A far-infrared intelligent foot therapy device with internal convection and streamlined design
ActiveCN105194809BPromote blood circulationPromote circulationDevices for pressing relfex pointsBathing devicesOzone generatorHuman body
The invention discloses a far infrared intelligent foot massage instrument adopting internal convection streamline design. The foot massage instrument comprises a spherical shell. The shell is provided with an opening. An ozone generator and a far infrared heater are arranged in the shell. The ozone generator is provided with ozone discharge openings which are distributed along the arc-shaped inner wall of the shell. According to the foot massage instrument, far infrared optical waves are utilized for stimulating acupuncture points of the human body, fatigue is effectively eliminated, blood circulation of the human body is promoted, and immunity is enhanced; the spherical appearance structure is adopted in the shell, the foot massage instrument is more attractive and elegant, the arc-shaped inner wall is beneficial for circular flow of internal air, and in this way, ozone generated by the zone generator flows along the arc-shaped inner wall of the shell after being discharged from the ozone discharge openings; meanwhile, flow of the ozone is accelerated by heat generated by the far infrared heater, and the more effective sterilization and far infrared physical therapy effects are achieved.
Owner:GUANGDONG DEZHONGTANG BIOLOGICAL TECH CO LTD
Forming method for end enclosure structure and lining of IV-type cylinder
The invention relates to a forming method for an end enclosure structure and a lining of an IV-type cylinder. The method comprises the following steps that (1), mechanical arms clamp an upper metal insert and a lower metal insert and place the metal inserts at corresponding positions in a mould, a blank is extruded out, and the lower end of the blank penetrates through polar holes of the upper metal insert and the lower metal insert; (2), the mold is closed; (3), parison blow molding and forming is ended, convective heat exchange cooling inside the mold is performed, the blank is cooled to a proper temperature, the mold is opened, the parison with the inserts is removed, blow molding burrs are removed, and then cooling and shaping are performed; (4), the cooled and shaped parison is placedon a rack to be fixed, and a blow molding false head is cut off with a blade; (5), a metal end cover is assembled, the metal end cover is connected with the metal inserts through threads, and a groove in the neck of a metal end head allows a torque wrench to exert force; (6), fiber winding is performed. By means of the forming method, the problem that the extruded and blow molding parison cannotpenetrate through the polar holes of the metal inserts is solved; and meanwhile, the process method for implementing the engineering is proposed targeted to the structure, and thus the advantages of the extrusion and blow molding process are played effectively.
Owner:YAPP AUTOMOTIVE PARTS (KAIFENG) CO LTD
Combined fan and ejector cooling
ActiveUS20170131031A1Rapid and uniform coolingMaintainance of heating chambersShaping pressEngineeringInternal convection
A pressing arrangement for treatment of articles by hot pressing includes a pressure vessel including a furnace chamber and a furnace to hold the articles. A fan circulates a pressure medium within the furnace chamber, and enhances an inner convection loop at a load compartment. The inner convection loop pressure medium has an upward flow through the load compartment, and a downward flow along a peripheral portion of the furnace chamber. A flow generator generates a flow of pressure medium into the load compartment downstream the fan to enhance the inner convection loop. The flow is generated by transporting the pressure medium upwards from a space below a bottom insulating portion and above a bottom end portion, and by injecting the pressure medium into the load compartment downstream the fan to enhance the inner convection loop.
Owner:QUINTUS TECH
Combined fan and ejector cooling
ActiveUS9551530B2Rapid and uniform coolingMaintainance of heating chambersShaping pressEngineeringInternal convection
A pressing arrangement for treatment of articles by hot pressing includes a pressure vessel including a furnace chamber and a furnace to hold the articles. A fan circulates a pressure medium within the furnace chamber, and enhances an inner convection loop at a load compartment. The inner convection loop pressure medium has an upward flow through the load compartment, and a downward flow along a peripheral portion of the furnace chamber. A flow generator generates a flow of pressure medium into the load compartment downstream the fan to enhance the inner convection loop. The flow is generated by transporting the pressure medium upwards from a space below a bottom insulating portion and above a bottom end portion, and by injecting the pressure medium into the load compartment downstream the fan to enhance the inner convection loop.
Owner:QUINTUS TECH
Convection heat switch
PendingCN113280565AOn-state thermal conductance improvementEnhanced convective heat transfer intensityDomestic cooling apparatusLighting and heating apparatusEngineeringConvection heat
The invention is applicable to the field of refrigeration and low temperature, and discloses a convection heat switch which comprises a first heat conductor, a second heat conductor, a first connecting pipe and a second connecting pipe, and is characterized in that the first heat conductor is provided with a first arc-shaped inner cavity, the second heat conductor is provided with a second arc-shaped inner cavity and an inflation inlet communicated with the second arc-shaped inner cavity, the inflation inlet is used for being externally connected with an inflation system, the first connecting pipe and the second connecting pipe are both used for connecting the first heat conductor and the second heat conductor, the first arc-shaped inner cavity and the second arc-shaped inner cavity are communicated through the first connecting pipe and the second connecting pipe, the first connecting pipe and the second connecting pipe are arranged at an interval, and the first arc-shaped inner cavity, the second arc-shaped inner cavity, the first connecting pipe and the second connecting pipe form a convection channel. The convection heat switch adopts an arc-shaped flow path space, the convection heat exchange intensity in the convection heat switch is enhanced, the heat conductivity of the conduction state of the convection heat switch is doubled, and the switch ratio is correspondingly doubled.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Uniform preparation device for physical foaming material
The invention discloses a uniform preparation device for a physical foaming material, and relates to the technical field of foaming material preparation, the uniform preparation device comprises an electric power base, an electric power connecting groove is formed in the top end of one side of the electric power base, a supporting column is fixedly mounted at the top end of the electric power base, and a sliding lifting adjuster is detachably mounted on one side of the supporting column; the top end of one side of the sliding lifting adjuster is fixedly connected with a transverse connecting rod. Through cooperation of a movable rod, a mounting connecting rod, a power rotating shaft, stirring blades and a convection groove, the stirring blades are driven by the power rotating shaft to rotate and stir, vibration generated by stirring of the stirring blades is reduced, the vibration frequency of the mounting connecting rod is reduced, and the service life of the stirring device is prolonged; a certain number of convection grooves are formed in the surfaces of the stirring blades, internal convection of the raw materials is increased in the stirring process, and therefore the stirring uniformity of the raw materials is improved, the product quality is improved, and meanwhile the production efficiency of the device is improved.
Owner:HUAIYIN TEACHERS COLLEGE
Ship thermal characteristic numerical simulation method
PendingCN114329777AAccurate Thermal Properties Calculation ResultsGeometric CADCAD numerical modellingHeat fluxMathematical model
The invention discloses a ship thermal characteristic numerical simulation method. The method belongs to the field of thermal characteristic simulation, and specifically comprises the steps of 1, dividing ship model grids, 2, establishing a ship thermal characteristic mathematical model, 3, solving a grid unit thermal balance equation, and 4, processing a numerical calculation result. Performing temperature or heat flux density assignment on each grid unit of the ship body model to obtain the temperature or heat flux density distribution condition of the whole ship; according to the ship thermal characteristic numerical simulation method provided by the invention, the thermal influence of multiple factors such as direct solar radiation, scattered solar radiation, sky radiation, sea surface radiation, sea surface reflection, external radiation of the ship body, external convective heat transfer and internal convective heat transfer on the ship body is comprehensively considered; the temperature and heat flux density distribution condition of the outer surface of the ship body can be predicted in advance, and compared with most of existing commercial software, the numerical simulation method can obtain a more accurate thermal characteristic calculation result.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Rotatable radiator with internal convection
InactiveCN107193175BEasy to operate mechanicallyLighting heating/cooling arrangementsProjectorsThermal energyRotational axis
The present invention provides a rotatable radiator arrangement comprising a radiator configured to enclose a cooling fluid, the radiator being rotatable about an axis of rotation. The heat sink in turn includes a first portion configured to receive thermal energy from a source external to the heat sink, and a second portion configured to dissipate at least a portion of the thermal energy to an environment external to the device. The device also includes a light wavelength converting material disposed on an outer surface of the first portion of the heat sink, and an agitator disposed inside the heat sink. The agitator is rotationally independent of the heat sink and is configured to facilitate circulation of cooling fluid between the first portion and the second portion.
Owner:CHRISTIE DIGITAL SYST USA INC
Waterproof boot with internal convection system
Disclosed is a waterproof shoe with an improved ventilation mechanism, designed to circulate air from the outside environment through the shoe in order to provide convective cooling to a wearer's foot. In a desired embodiment, the shoe may incorporate a pump-ventilation mechanism which, coupled with airflow channels incorporated in the upper, acts to establish continuous substantially one-way airflow through the shoe in a heel-to-toe direction while a user walks.
Owner:TBL LICENSING
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