55 results about "Force convection" patented technology

The utility model relates to the technical field of single crystal preparation by a liquid phase epitaxy method, in particular to a leading forced convection introducing device for single crystal growth by a resistance heating LPE method, which comprises a graphite crucible and a graphite heating component arranged on the outer side of the graphite crucible, one end of the graphite seed crystal rod extends into the graphite crucible and is connected with the graphite seed crystal support; the seed crystal is adhered to the bottom surface of the graphite seed crystal support; the graphite annular turbofan is arranged in the graphite crucible; the graphite annular turbofan is connected with the graphite seed rod through a jackscrew clamp; the other end of the graphite seed crystal rod is externally connected with a seed crystal lifting and rotating mechanism; and the graphite seed crystal rod drives the seed crystal and the graphite annular turbofan to do lifting and rotating motion. According to the device, the influence of adverse convection on the whole flow field is weakened, and the controllability of the whole flow field can be improved; and meanwhile, an ideal temperature field for growing high-quality silicon carbide crystals in the growth cavity is ensured.

The invention relates to the technical field of plastic bottle production, and discloses a plastic bottle pressurizing and blowing device and a bottle blowing method thereof, and cold air is quickly sprayed to the outer surface of a just formed plastic bottle through air holes uniformly formed in the inner wall of a mold cavity. Cold air is in direct contact with the plastic bottles, heat is rapidly taken away through forced convection, and the plastic bottles are cooled and shaped in a short time. Compared with a traditional natural cooling mode, the cooling efficiency is remarkably improved through the cooling mode, the product quality is guaranteed, the production cycle of a single product is shortened, and therefore the overall production efficiency is improved. In addition, the high-pressure gas in the main exhaust pipe is shunted through the auxiliary gas filling pipe, so that the cross sectional area of circulation of the high-pressure gas can be increased, the total flow of the gas entering the bottle preform can be increased, and the expansion speed of the bottle preform is obviously increased.

This utility model relates to the field of heat dissipation in power electronic equipment, and more particularly to a medium-frequency reactor with heat pipes connected to heat sinks and air cooling. It includes a medium-frequency reactor body, with a mounting base fastened to the top of the reactor body. Auxiliary heat dissipation components are provided on the mounting base corresponding to the winding positions of the reactor body. Each auxiliary heat dissipation component includes two heat pipes, with multiple heat sinks fixedly mounted at equal intervals around the two heat pipes. In this utility model, the concentrated heat from the windings is transferred to the externally distributed heat sinks through the evaporation and condensation phase change cycle of the working fluid inside the heat pipes, and then rapidly dissipated through forced convection by a fan. Simultaneously, a protective shell composed of an L-shaped column and a detachable dustproof top and side plates effectively prevents dust and debris from entering the reactor body and heat sink area.

The invention belongs to the technical field of meat moisture detection, and discloses a meat moisture detection device and a detection method thereof.The meat moisture detection device comprises a supporting bottom plate, a plurality of connecting frames distributed in a circular array are fixedly arranged at the top of the supporting bottom plate, and an electric air cylinder and a mounting box are fixedly arranged at the center of the top of the supporting bottom plate; the mounting box is fixedly arranged at the top of the connecting frame, the mounting box and the supporting bottom plate are both circular, a plurality of evaporation boxes distributed in an annular array are arranged on the outer wall of the mounting box, and a spraying assembly and a drying assembly are arranged in the mounting box. Therefore, uniform heating and drying of the meat are facilitated, and the problems that when a heating method is used for moisture detection of the meat, due to the fact that the drying oven depends on forced convection heating, the meat is placed fixedly, and hot air circulation is uneven, the sample drying rate is different, and the final detection precision is affected are solved.

A kind of partition heating semiconductor smelting crystal pulling device, it is related to semiconductor processing manufacturing technical field, including furnace body, multiple temperature-controlled heating zones are provided in furnace body inner cavity, and the heating zone includes growth temperature zone;Interface temperature monitoring mechanism is further arranged in the inner cavity of furnace body to monitor the solid-liquid interface temperature at the crucible;Rotary lifting mechanism is arranged at the top of furnace body;Rotary lifting mechanism rod passes through the upper end of furnace body and extends into the crystal pulling rod of growth temperature zone, and the rotary lifting mechanism drives the lifting and rotation of crystal pulling rod;Rotary lifting mechanism further includes rotating base, which drives rotary lifting mechanism to rotate when crystal pulling rod reaches the set height, through the precise temperature field of integrated multi-temperature zone, forced convection of rotary stirring, process flexibility of vertical pulling, and realize multi-system linkage control based on interface real temperature, meet the growth demand of high-precision materials such as multi-component compound semiconductor.

The utility model discloses an emulsion stirring device which comprises an outer tank body, an inner tank body and a tank cover, the inner tank body is arranged in the outer tank body, the top of the outer tank body is connected with the tank cover through a flange bolt, the bottom of the tank cover is rotatably connected with a stirring mechanism, the bottom of the tank cover is fixedly connected with a flow dividing chamber, and the flow dividing chamber is fixedly connected with a stirring mechanism. A three-layer stirring system of wall scraping of the linear stirring piece, circulation of the helical ribbon type stirring piece and shearing of the dispersing disc is adopted, the upper area, the middle area and the lower area of the tank body are covered, the stirring effect is good, and the stirring effect is good. A forced convection path of ascending in the cylinder and descending in an annular space is formed in cooperation with a fixed flow guide cylinder, the design that a flow dividing chamber is combined with an annular flow dividing opening is adopted, flowing of a high-viscosity auxiliary agent is accelerated through gravity, circumferential uniform adding is achieved in cooperation with a pneumatic diaphragm pump, and the outer tank body and the inner tank body are detachably designed, so that the time for maintaining the heating bin and cleaning the inner tank body is shortened.

The invention discloses a superfluid helium low-temperature visualization device suitable for neutron fluorescence tracing and an experiment method, and a low-temperature heat insulation system module in the superfluid helium low-temperature visualization device comprises a cavity, a liquid nitrogen pool, a 77K cold screen, a superfluid helium pool and a 4K cold screen; the vacuum pumping and circulating reliquefaction module is used for recycling gasified helium; the temperature and liquid level monitoring control module is used for monitoring the temperature, the liquid level and the pressure in real time; the experimental observation and visualization module is used for neutron incidence, laser excitation and fluorescence signal observation path penetration, so as to realize visual observation of excimer fluorescence in the superfluid helium flow field; and the convection driving and mode switching module is used for realizing two experimental modes of mechanical driving forced convection and thermal driving internal convection. The device can stably obtain a superfluid helium environment below 2.17 K, and has the advantages of being excellent in heat insulation performance, high in liquid helium utilization rate, detachable and replaceable in structure, stable in operation, suitable for neutron fluorescence flow field observation and the like.

The invention discloses a forestry seedling planting cultivation shed, and belongs to the technical field of seedling cultivation, the forestry seedling planting cultivation shed comprises a cultivation shed body, a buried constant temperature assembly is arranged below the cultivation shed body, one end of the buried constant temperature assembly is communicated with a first air suction pipe, and the other end of the first air suction pipe is provided with an air suction head. Air enters the cultivation shed body through the air filter cylinder, the heated air flows from bottom to top after entering the cultivation shed body, and in the process that the air flows through the air filter cylinder, the air filter plate removes moisture and other harmful substances which are not beneficial to growth of forestry seedlings in the air. The high specific heat capacity characteristic of water is combined with the forced convection technology to serve as a ventilation system of the cultivation shed body, emission of harmful gas and moisture in the cultivation shed body is accelerated through forced convection, the stability in the forestry seedling cultivation and growth process is greatly improved, and safety is high.

The application relates to a liquid rocket engine test heating device, in particular to a liquid rocket engine inner cavity induction heat accumulation type hot nitrogen gas supply device and method, and solves the technical problem that the existing low-temperature liquid rocket engine usually adopts an external hot air forced convection or electric heating wire heating nitrogen gas mode to heat the pipeline and the engine inner cavity nitrogen gas, and it is difficult to meet the low-temperature liquid rocket engine pipeline and engine inner cavity rapid temperature recovery requirement. The liquid rocket engine inner cavity induction heat accumulation type hot nitrogen gas supply device comprises a heating unit, a pressure monitoring unit, a temperature monitoring unit and a control unit; the heating unit comprises a buffer tank and a heating assembly arranged on the buffer tank; an air inlet of the buffer tank is used for being connected with an air source; the pressure monitoring unit and the temperature monitoring unit are arranged on the buffer tank and are connected with the control unit respectively; and the control unit is used for controlling the heating assembly to work according to the inner cavity nitrogen gas temperature and the outer wall temperature of the buffer tank.

The present application relates to a method, apparatus, computer equipment, and storage medium for analyzing molten pool characteristics. The method, which belongs to the field of computer technology, comprises: obtaining the natural convection intensity value of the molten pool in a stationary state, and the forced convection intensity value of the molten pool in a swinging state; determining the convection influence factor of the molten pool based on the natural convection intensity value and the forced convection intensity value; and finally, determining whether there is forced convection in the molten pool in a swinging state based on the relationship between the convection influence factor and a preset threshold; if so, determining the convection characteristics of the molten pool in a swinging state based on the height and lateral span of the free liquid surface in the molten pool, and the horizontal and vertical accelerations of the molten pool in the swinging state. This method solves the current problem of the lack of effective methods for analyzing molten pool characteristics, especially the lack of methods for determining molten pool characteristics in a swinging state.

This utility model belongs to the field of chemical reagent and auxiliary agent production technology, specifically a cooling tower for chemical reagent and auxiliary agent production. It includes a sliding frame with metal plates mounted on both ends of its bottom side. The metal plates are arranged in a ring shape inside a cooling chamber. Several through holes are equidistantly spaced inside the metal plates. A rotating shaft is mounted on the output end of a drive motor, and a cam is mounted on the outer side of the rotating shaft. A rotating shaft is movably mounted inside one end of the cam, and a connecting rod is rotatably mounted on the other end of the rotating shaft. When the drive motor starts, its output end drives the rotating shaft and the outer cam to rotate. The cam drives the connecting rod to move, causing the sliding frame to reciprocate up and down inside the outer cylinder. The ring-shaped metal plates move synchronously. The movement of the metal plates breaks the static state of the cooling water in the cooling chamber, forming forced convection. Its corrosion-resistant metal material has excellent thermal conductivity, absorbing heat during movement. The internal through holes reduce resistance and promote water mixing, improving heat exchange efficiency.

The invention provides an outdoor distribution box, and relates to the technical field of distribution boxes. A rectangular ventilation opening is formed in the top of the box body; a ventilation flow guide body is arranged in the ventilation opening and is of an isosceles trapezoid structure with the wide upper portion and the narrow lower portion, an inner cavity of the ventilation flow guide body is hollow, and an opening in the upper end is used for collecting rainwater. A lifting frame is arranged in an inner cavity of the box body below the ventilation flow guide body, a lifting mechanism is arranged on the lifting frame to drive the ventilation flow guide body to ascend and descend, and in rainy days, the ventilation flow guide body moves downwards to shield the ventilation opening, and a gap is reserved to be in a minimum state. Based on the isosceles trapezoid hollow structure of the ventilation flow guide body and the cooperation of the isosceles trapezoid hollow structure and the lifting frame, a meteorological response type ventilation and rainproof integrated mechanism is constructed. In sunny days, the air cylinder retracts to drive the connecting arm to keep a vertical state, so that the ventilation flow guide body ascends to a high position to form an expanded cross ventilation channel with the ventilation opening in the top of the box body, and the heat dissipation efficiency is remarkably improved by cooperating with forced convection of the heat dissipation fan.

The rotary drum and the drying device for drying the blast bead wet pills comprise a material door, a check ring, a drum body and a bottom plate, the drum body is of a polygonal structure defined by a net plate, the blast bead wet pills are placed on the net plate and are dried in a rotary mode through the rotary drum, and the net plate is of a ventilation structure provided with ventilation holes so that heat exchange of the blast bead wet pills can be promoted. When the drum body of the polygonal structure rotates, the angular linear speed is obviously higher than that of the plane center, forced convection of high-speed throwing-low-speed spreading is formed, wet pellets are dispersed and uniformly rolled, the problem of material adhesion of a circular drum is solved, and the special-shaped rate can be reduced. The rotary drum can rotate in the forward direction and the reverse direction, a forward and reverse rotation dual-mode driving mechanism provides an adaptive drying path, wet pills slide down gently along an inclined plane during forward rotation, and initial mechanical damage is avoided; during reverse rotation, edges and corners reversely hold wet pills for high-altitude throwing, strong convection breaks later-stage caking, and drying uniformity is improved.

Liquid drug formulations must be frozen as part of the lyophilization process to remove the solvent via sublimation. This freezing process is typically done through shelf-based cooling. The present disclosure provides, in various aspects, forced convection gas cooling chamber that can be used with a continuous lyophilizer to freeze product in vials or other containers without requiring solid contact between the vials or other containers and another surface. The gas temperature can also change rapidly, and the present disclosure relates in various aspects to the implementation of a thermal quench method for controlled nucleation.

The application relates to the technical field of medical instrument metal piece processing, and particularly discloses a cutting and welding device for medical instrument metal piece processing, which comprises a base, vertical plates are arranged on the top of the base, horizontal plates are fixedly connected to the top of the vertical plates, a cleaning mechanism is arranged below the horizontal plates, the cleaning mechanism is used for collecting the cutting generated chippings, cooling the cutting edge of the cutting knife, and cleaning the chippings attached to the surface of the cutting component. The cleaning mechanism is arranged, forced convection air cooling of the high-speed rotating cutting knife can be realized during the cutting operation, a large amount of heat generated due to friction can be removed in time, the temperature of the cutting knife blade part is effectively prevented from sharply rising, the gas is used as the cooling medium, the temperature sharply dropping problem caused by the traditional water-based or oil-based cooling liquid is avoided, and the risk that micro-cracks or macroscopic cracks are generated in the precision workpiece of the medical instrument due to thermal stress is eliminated.

The invention discloses a high-purity material purification system and process based on electromagnetic stirring driving, and belongs to the technical field of material purification. The system adopts a framework with synergistic effect of electromagnetic stirring and directional solidification, and comprises a furnace body adopting a water-cooled shell structure, an electromagnetic stirring device for generating a rotating magnetic field to drive forced convection of a melt, a directional solidification assembly with a closed-loop temperature gradient control function, and a vacuum refining assembly adopting a multi-stage series structure, and the control system is used for realizing coordinated control of each component. The purification process comprises the steps of raw material pretreatment, vacuum environment construction, melt heating and electromagnetic stirring, directional solidification purification, product taking out and the like. According to the invention, uniform dispersion of impurities is promoted through electromagnetic stirring, an impurity enrichment layer at the front edge of a solidification interface is destroyed, effective separation of the impurities is realized by utilizing a solute redistribution effect through directional solidification, gas phase pollution is eliminated through a vacuum environment, linkage adjustment of each process link is realized through a control system, and the production efficiency is improved. The product purity and the effective purification rate are obviously improved.

The invention belongs to the technical field of evaporative cooling, and particularly relates to a dynamic rotatable sheet-shaped three-dimensional capillary container structure and a using method. The dynamic rotatable sheet-shaped three-dimensional capillary container structure comprises a water tank, a plurality of capillary container sheets are arranged in the water tank, the capillary container sheets are fixed on a rolling shaft, the rolling shaft is connected with a motor, a fan is further arranged on the water tank, an air inlet is formed in the bottom of the water tank, and liquid is contained in the water tank. A rotary sheet-shaped three-dimensional capillary container structure is introduced, and discrete and spatially distributed liquid drops are formed by capillary acting force, so that the contact area and the contact time of water and air are remarkably increased. The structure can more effectively retain moisture and enable the moisture to evaporate more uniformly, and dynamic rotation ensures continuous renewal of a water and air interface and enhances diffusion of water vapor through forced convection.

The application relates to the technical field of bionic robots and discloses a leg buffering structure of a bionic robot, which comprises a base, a large arm rotatably installed on the base, a small arm rotatably installed at the end of the large arm away from the base, and a buffering assembly arranged between the large arm and the small arm and used for buffering between the large arm and the small arm. The buffering assembly comprises a sealing cylinder, the two ends of the sealing cylinder are provided with through openings, the sealing cylinder is internally filled with oil, a sliding plug is slidably arranged in the sealing cylinder, the sliding plug is provided with a plurality of oil holes, and a movable rod is fixed to the side surface of the sliding plug. The large arm and the small arm are rotated when the robot walks, the sliding plug drives the sliding plate to periodically stretch and compress the annular capsule, the circulation of gas in the base is realized, heat is transmitted to the cooling plate body through forced convection and heat conduction and is radiated to realize natural heat dissipation and cooling, an additional power source is not needed, the structure of the robot is not increased, and the weight of the robot is not increased.

Satellite achieving forced convection of a refrigerant fluid with evaporation-condensation between several structural panels and dissipative equipment. Satellite comprising: - a plurality of structural panels including at least two radiator panels (56) having an external face (60) for radiating heat into space (62), and an internal face (64), the two radiator panels being adapted to conduct heat from the internal face to the external face, - dissipative equipment (30), - a circulation loop of a refrigerant fluid (34), comprising: - a pumping system to achieve forced convection of the fluid, - at least two evaporation-condensation heat exchangers (72) of the fluid, each of the exchangers extending against the internal face of one of the two radiator panels.Each of the two heat exchangers comprises: - a first part (82) in thermal contact with one of the dissipative devices to vaporize a fraction of the fluid, - a second part (84) in thermal contact with the inner face to condense a fraction of the fluid. Figure for the abbreviation: Figure 4.

The invention discloses a warm ginger fiber fabric preparation device and a preparation process thereof, and relates to the technical field of textile, the warm ginger fiber fabric preparation device specifically comprises a device body, an inner cavity of the device body is provided with a partition plate, the partition plate divides the inner cavity of the device body into an impurity removal cavity and a dipping cavity, and the bottom of the inner cavity of the device body is provided with an aeration plate; and the top end of the impurity removal cavity is connected with a first sewage suction pipe through a first telescopic structure. According to the preparation device and the preparation process of the warm ginger fiber fabric, gaps of the fabric are rapidly filled with fresh impregnation liquid through the negative pressure effect in a mode of squeezing water and impregnating at the same time, forced convection is formed, the impregnation efficiency is improved, the impregnation liquid is continuously sprayed out through the liquid spraying roller, the concentration of the sprayed impregnation liquid is higher than that of the impregnation liquid in the impregnation cavity, and the impregnation efficiency is improved. The surface layer high-concentration liquid is diffused inwards through the capillary effect, the concentration gradient from outside to inside is formed, deep penetration is promoted, and the impregnation efficiency is further improved.

The invention relates to the technical field of braised pork processing, and discloses steaming equipment for industrial processing of braised pork, which comprises a tank body, a tank cover and a metal tray, the metal tray is provided with a rotating shaft, the rotating shaft is provided with a plurality of fixed sleeves I, and the fixed sleeves I are internally provided with sliding rod frames I; according to the steaming equipment for the industrial processing of the braised pork with the vinasse, the fixed sleeve I, the sliding rod frame I and the arc-shaped flexible blades are arranged on the rotating shaft, the synergistic effect of a spring part I and a torsional spring is utilized, and the steaming effect of the braised pork with the vinasse is improved; the expansion angle of the arc-shaped flexible blade is adaptively adjusted along with the change of the rotating speed of the rotating shaft, the maximum expansion angle is kept at a low speed to realize mild stirring, and the smaller expansion angle is kept at a high speed to form forced convection, so that the dynamic regulation and control on the cooking liquor stirring intensity in the whole steaming process are realized; the rapid heat transfer in the shaping stage is ensured; and the flavor volatilization loss in the fragrance keeping stage is reduced.

The invention discloses a gel foam composite mattress and a preparation method thereof, and relates to the technical field of household articles. The mattress comprises an upper comfortable layer, a functional composite layer and a bottom supporting layer. The functional composite layer is composed of a sponge base body and a plurality of flexible long-strip-shaped bags embedded in the sponge base body, the bags are made of PEPA co-extrusion films and filled with mixed filler of macromolecular water-absorbent resin gel particles and surface modified high-elasticity foam particles, and a three-dimensional microcirculation ventilation network communicated through channels among the bags and miniature ventilation ducts is arranged in the sponge base body. Through heat absorption and heat conduction of the gel particles and forced convection of the three-dimensional ventilation network, the problem of deep heat and moisture accumulation of the mattress is solved synergistically; by combining particle collaborative support and bag partition design, dynamic fit and tough ergonomic support is provided while heat dissipation is guaranteed, the structure is stable, and the mattress is particularly suitable for improving sleep comfort and preventing bedsores.

The invention discloses an intelligent temperature control household mead brewing machine, and belongs to the technical field of mead brewing equipment. The fermentation tank is composed of an inner tank and an outer tank which are of a double-layer structure, the sealing cover is connected with the fermentation tank in a sealed mode and is integrated with a man-machine interaction panel, the stirring device is vertically installed in the center of the sealing cover and extends into the tank, the electromagnetic induction coil is wound around the outer side of the inner tank, and the liquid cooling circulation system is composed of a refrigeration part and a refrigeration module. A temperature sensor group is arranged on the stirring device and is used for monitoring the temperature of the fermentation liquor in a multi-point coordinated manner. Through the synergistic effect of rapid heating of the electromagnetic induction coil, efficient cooling of liquid cooling circulation and forced convection of the stirring device and in combination with a pre-judgment adjustment algorithm of the central processing unit, intelligent and accurate regulation and control of the mead fermentation environment are achieved, and the problems that in the prior art, temperature control is not accurate, and the fermentation environment is not uniform are solved.

The invention discloses a forced convection single-tank fused salt-solid energy storage device which comprises a heat storage tank body, and the interior of the heat storage tank body is divided into a central fused salt filling area and a peripheral mixed filling area through an annular partition plate; the mixed filling area is filled with a mixture of solid particles and fused salt, the fused salt filling area is filled with pure fused salt, and through holes used for blocking the solid particles and allowing the fused salt to pass through are formed in the partition plate; the device is further provided with a forced convection disturbance device, the forced convection disturbance device comprises a liquid collecting barrel vertically arranged in the center of the fused salt filling area, a piston and a driving piece, through holes are formed in the barrel wall of the liquid collecting barrel, the driving piece drives the piston to move in the liquid collecting barrel in a reciprocating mode, and forced circulation convection is formed in the heat storage tank body by sucking and discharging fused salt. Temperature stratification in the tank is broken through forced convection, the temperature uniformity and the heat exchange efficiency in the heat charging and discharging process are improved, local overtemperature or solidification is effectively avoided, and the overall operation safety and economical efficiency of the energy storage system are improved.

The invention discloses a palladium-based composite electro-catalysis membrane for removing halogen-containing pollutants in water and a preparation method and application of an assembly of the palladium-based composite electro-catalysis membrane, and belongs to the technical field of water treatment. The method comprises the following steps: 1, preparing a titanium nitride hollow fiber membrane; 2, loading the titanium nitride hollow fiber membrane into a membrane module; and thirdly, palladium nanoparticles are loaded through a circulation type electro-deposition method. The palladium-based composite electro-catalysis membrane assembly for removing the halogen-containing pollutants in the water is used for removing trace halogen-containing pollutants in the water; according to the palladium-based composite electro-catalytic membrane provided by the invention, the mass transfer and reaction efficiency is remarkably enhanced through forced convection and pore channel confinement effects introduced in the membrane filtration process, so that the treatment efficiency is greatly improved while the energy consumption is reduced; the removal rate of the membrane on trace halogen-containing pollutants under a complex water quality condition can exceed 99.9%, the reaction rate constant of the membrane is improved by 2-4 orders of magnitude compared with that of a traditional technology, the energy consumption of water treatment per ton can be reduced to 0.1 kWh or below, and the membrane shows a remarkable energy efficiency advantage.

The invention discloses a zinc supplementing device for a zinc pot, and relates to the field of zinc plating processes, the zinc supplementing device comprises a zinc supplementing hanging frame, a supporting movable mechanism is arranged in the zinc supplementing hanging frame, the supporting movable mechanism comprises a plurality of movable rods arranged in the zinc supplementing hanging frame, the movable rods are alternately distributed up and down, and connecting rods are fixed to the two ends of each movable rod; floating assemblies are arranged between the multiple movable rods and the zinc supplementing hanging frame, a movable assembly is arranged between the two supporting beams, and turbulent flow mechanisms are arranged between the adjacent connecting rods. The movable assembly is used for driving the floating assembly, the floating assembly drives the multiple connecting rods to move, the multiple movable rods move in a staggered mode when supporting a zinc block, meanwhile, the turbulent flow mechanism generates forced convection in zinc liquid, and therefore the heat transfer process is remarkably accelerated, the time needed for zinc supplementing is shortened, and the production efficiency is improved; meanwhile, a low-temperature zinc liquid boundary layer on the surface of the zinc block can be taken away through fluid disturbance, and high-temperature zinc liquid is introduced.

The utility model relates to a dish-washing machine technical field, especially a dish-washing machine with limiting component, including cabinet main part and dish-washing machine main body, the inner wall of cabinet main part is fixedly installed with limiting frame through self -tapping screw, dish-washing machine main body is located in the inside of limiting frame, the inner wall of limiting frame is fixedly connected with two symmetrical support plate of setting, the utility model has the advantages that: the position of the ventilation groove of the front of the frame and the dust screen corresponding fan mounting plate forms the circulation path of " air intake - heat dissipation - exhaust air ": the outside air is filtered after passing dust screen and enters the ventilation groove, and under the drive of fan, passes through the inside of limiting frame, and after the heat is carried, is discharged from the gap of cabinet main body and dish-washing machine main body, avoids the heat to accumulate in the narrow space. This design breaks the heat dissipation barrier caused by the close adhesion of traditional embedded dish-washing machine and cabinet, improves the heat dissipation efficiency through forced convection, and guarantees that the operating temperature of water pump, motor and other electrical components is in a reasonable range.

The invention discloses a casting method of a high-strength machine tool body casting capable of reducing internal stress, and relates to the technical field of metal casting, the method comprises the following steps: smelting a nodular cast iron or cast steel base material in an electric induction furnace, and degassing in a vacuum environment; adding a nano rare earth modifier into the melt, and injecting the nano rare earth modifier at an injection speed of less than or equal to 10mm / s, so that the Ce and La elements realize spheroidization and refinement of non-metallic inclusions in the melt; the modified melt is poured into a casting mold through a steel-clad and sand-clad system, and a frequency-adjustable alternating electromagnetic coil is arranged on the outer wall of the casting mold; and during pouring, a rotating electromagnetic field of 5-15 kHz is generated through an alternating electromagnetic coil, so that melt forms high-speed vortex stirring in a cavity, and component uniformity is promoted. Through nano rare earth and electromagnetic stirring coupling, non-metallic inclusions are synchronously refined and forced convection mixing is carried out, chemical segregation and inclusion agglomeration are reduced, the graphite spheroidization rate is increased, the structure is more refined and uniform, and the refining efficiency is improved.

The utility model relates to the technical field of notebook computer supporting seats, and discloses a notebook computer supporting seat with a good heat dissipation effect, which comprises a bottom plate, the front end of the bottom plate is fixedly connected with a supporting plate, the inner wall of the bottom plate is fixedly connected with a fixed column I, and the surface of the fixed column I is rotatably connected with a movable sleeve. A supporting plate is fixedly connected to the surface of the movable sleeve, a mounting table is fixedly connected to the bottom of the supporting plate, a second fixing column is fixedly connected to the inner wall of the mounting table, a connecting rod is fixedly connected to the surface of the second fixing column, and a clamping groove is formed in the top of the bottom plate. The copper plate and the densely arranged radiating fins are integrated on the inner side of the supporting plate, the output end of the radiating fan directly faces the surfaces of the fins in parallel, a low-wind-resistance and high-efficiency forced convection radiating channel is formed, meanwhile, the connecting rod can be clamped into the clamping grooves in different positions on the bottom plate after rotating around the second fixing column, and therefore the radiating effect is improved. And multi-gear stepless adjustment of the included angle between the supporting plate and the bottom plate is realized.

The utility model discloses a smoking chamber structure for meat product processing, which comprises a box body, a smoking part and a convection part, the smoking part is arranged in the box body, the smoking part is provided with a power shaft which is transversely and rotatably arranged in the box body, a motor is arranged on the side surface of the box body, the output end of the motor is connected with the power shaft, and the convection part is arranged in the box body. The convection part is arranged in the box body, the convection part is provided with a transmission box a arranged in the box body, a transmission shaft a is vertically and rotatably arranged in the transmission box a, the transmission shaft a is in meshed connection with a power shaft, the power shaft rotates to drive the transmission shaft a to rotate, and blades a are arranged at the bottom of the transmission box a. By arranging the smoking part and the convection part, the power shaft can be driven by the motor to rotate, so that the transmission shaft a and the blade a are driven to rotate, a forced convection circulation system is formed, smoke is uniformly distributed in the box body, the uniformity and the efficiency of smoking meat products are improved, and non-uniform distribution of the smoke is avoided.