115 results about "Forced convection" patented technology

This utility model discloses a high-temperature resistant cooling circulation structure for a fluoroplastic magnetic pump, specifically relating to the field of magnetic pumps. It includes a base, pump body, pump cover, connecting frame, isolation sleeve, inner magnetic rotor, outer magnetic rotor, motor, and impeller. The isolation sleeve, inner magnetic rotor, and outer magnetic rotor are all housed inside the connecting frame. The high-temperature resistant cooling circulation structure of this fluoroplastic magnetic pump features a spiral cooling channel inside the isolation sleeve. The coolant flows directly through the core area of ​​the heat source, rapidly absorbing heat transferred by magnetic eddy currents and high-temperature media through forced convection, thus improving cooling efficiency and effectively blocking heat transfer to the outer magnetic rotor, preventing permanent magnets from demagnetizing and failing due to high temperatures. Copper-nickel alloy heat-conducting fins are welded to the inner wall of the isolation sleeve, combined with a layer of thermally conductive silicone grease, accelerating the conduction of heat from the inner magnetic rotor to the cooling channel. A vacuum cavity is provided between the spiral cooling channel and the outer wall of the isolation sleeve to suppress heat conduction to the outer magnetic rotor, achieving double thermal isolation.

The utility model relates to the technical field of aluminium foil production, especially a bearing seat cooling device, including main body support, main body support sets up at the outside of bearing seat, and and bearing seat's multiple surface is pasted, main body support includes liquid cooling module, hollow setting in liquid cooling module, be provided with annular opening on liquid cooling module, the middle part of bearing seat enters the opening, the inside of liquid cooling module is provided with the baffle, the baffle makes liquid cooling module inside form the chamber around bearing seat middle part, the temperature of bearing seat can be reduced in the flow of cooling liquid in the chamber, in the utility model, liquid cooling module makes cooling liquid and bearing seat multiple surface contact through the surrounding chamber, combines the forced convection of both sides air cooling module, forms " liquid cooling + air cooling " double heat dissipation, significantly reduces bearing seat temperature, avoids the lubricating oil failure or fire risk because of high temperature.

The utility model discloses a primary brine preheats high -efficient energy -conserving heater, including the casing, the both ends of casing are provided with the pipe box, is provided with multiple groups of heat exchange pipeline in the casing, be provided with multiple groups of disturbing wheel in the casing, be provided with two groups of support ring on the disturbing wheel, the inner wall connection of support ring and casing, the disturbing wheel rotation is arranged between two groups of support rings, be provided with multiple groups of disturbing vane on the disturbing wheel, and multiple groups disturbing vane are annular array distribution and set up on the disturbing wheel, the utility model discloses beneficial effect is: through being provided with multiple groups rotatable disturbing wheel and its annular array distribution disturbing vane in the casing, under the high temperature fluid flow impact passive rotation, forms the lasting, dynamic disturbance to the casing fluid, and this design effectively destroys the temperature boundary layer and the speed boundary layer of casing fluid, and strengthens the turbulence effect, and promotes high temperature fluid and heat exchange pipeline outer wall surface realizes more sufficient forced convection heat transfer.

The utility model discloses a kind of vehicle permanent magnet synchronous motor, it is related to the technical field of permanent magnet synchronous motor, including motor shell, front end cover, rear end cover and rotor core, the side of the motor shell is provided with front end cover, the side of the front end cover is connected with rolling bearing and penetrates, the both sides of the motor shell are connected with fin piece, the side of the front end cover is provided with exhaust mechanism, the internal heat of motor shell is exhaust treated by the exhaust mechanism, while taking away the internal water cooling liquid heat of motor shell, the side of the motor shell is provided with cooling mechanism, the air of outside is directly sucked into the inside of motor shell by the cooling mechanism. Rear end cover is purified to inhaled air by filter screen, remove impurities such as dust or particulate matter, prevent them from gathering on coil surface and reduce heat exchange efficiency;Subsequently flowing air forced convection flows through coil surface, absorbs the heat of liquid inside coil.

The utility model provides a kind of high-temperature-resistant long-life ball bearing retainer, it is related to bearing retainer technical field, and it includes: hold frame body;The retainer body is annular structure, and ball hole is arranged in annular array shape on the inner wall of retainer body;Annular array shape is arranged in the through hole of the outer wall of retainer body, and the through hole is circular hole structure, and the through hole arranged in annular array shape is jointly composed of the heat dissipation structure of retainer body.Utilize nickel-based alloy high melting point (1300 DEG C above) and strong oxidation resistance, so that retainer is not easy to heat softening or oxidation corrosion failure under high temperature working condition (such as industrial kiln, aeroengine), directly prolongs the service life under high temperature environment;Through type circular through hole forms three-dimensional heat dissipation channel, cooperates the forced convection of lubricating medium (oil / gas), and internal heat is quickly taken away.For example in high-speed motor, airflow passes through through hole can make retainer temperature reduce 20%~30%, avoid local overheating to cause material failure.

This utility model provides a multi-channel high-temperature resistant wiring compartment, belonging to the technical field of downhole electric heaters. It includes a vertically arranged wiring compartment shell, with cable pipes vertically arranged on both the left and right sides inside the shell. A heat dissipation component for cooling the two cable pipes is provided inside the casing, and a heating rod is vertically arranged below the two cable pipes. This multi-channel high-temperature resistant wiring compartment absorbs heat from inside the wiring compartment and lowers its temperature through forced convection heat transfer in the intensifier, primary spiral cavity, and secondary spiral cavity. It also achieves temperature uniformity through natural convection of gas inside the wiring compartment. Furthermore, the spatial discontinuity of the primary and secondary spiral cavities provides ample space for natural convection of gas inside the wiring compartment.

The application relates to the technical field of special power supply, and discloses a special power supply with a heat-dissipating dustproof shell, which comprises a shell, a heat-dissipating fan is connected to the inner wall of the shell through screws, and dustproof assemblies are connected to the two side edges of the shell through screws; the dustproof assembly comprises a frame plate, a wedge-shaped hole is formed in the inner wall of the frame plate, a buckle plate is clamped in the wedge-shaped hole, a rectangular cover is fixedly connected to one end of the buckle plate, and scale holes are formed in the outer surface of the rectangular cover. The application has high heat-dissipating efficiency and good dustproof effect, and is convenient to maintain; the through holes on the two sides of the shell provide special channels for air flow, the fan installation mode ensures the directionality and effectiveness of air flow transmission, the two side fans are reversely arranged to form a directional forced convection air duct in the shell, compared with natural heat dissipation, the air flow rate and heat exchange efficiency are greatly improved, the heat generated by the core components during operation can be timely removed, and local high temperature is avoided to affect equipment operation.

This invention discloses a device and method for eliminating thermal stratification in a pooled reactor based on compressed gas. The device includes an independent heat exchanger, a steam generator, a reactor core, a core shielding layer, a main pump, and a temperature sensor array, all housed within the pooled reactor vessel. In this invention, through a linkage mechanism between temperature monitoring and the compressed gas-driven main pump, the weak natural circulation is converted into forced convection circulation during a complete power outage and when thermal stratification occurs. This significantly enhances the disturbance and mixing of hot and cold liquid metals within the pool, effectively eliminating temperature gradients that lead to equipment thermal fatigue and improving the safety of the reactor structure under accident conditions. Unlike simple energy storage and release, by incorporating a preheater, the residual heat from the reactor core is used to reheat and pressurize the compressed gas. This not only recovers some waste heat but also enhances the work capacity of the gas-driven turbine, achieving energy recovery and ensuring the power redundancy required to drive the main pump.

The application relates to the technical field of electronic equipment heat dissipation, and discloses a kind of intelligent heat dissipation device of built-in fan and movable wind baffle, including mainboard, water cooling head main body is installed in one side of mainboard, shell is fixed in one side of water cooling head main body, first air outlet and second air outlet are respectively opened in the outside of shell towards the side of mainboard, first air outlet and second air outlet are used to blow and heat dissipation on the heating element on mainboard;Temperature data of CPU, capacitor, inductor and other key components are collected in real time by built-in temperature monitoring module, and the system is started to dissipate heat only when necessary by combining with the preset threshold value of control module, first air outlet and second air outlet are set towards the side of mainboard, two high-speed air flows can cover CPU, capacitor, inductor and memory stick and other core areas, heat is taken away by forced convection, the single nature that traditional water cooling head main body can only be aimed at CPU heat dissipation is broken through, and balanced heat dissipation to multiple key heating elements of mainboard is realized.

The utility model belongs to vacuum equipment technical field especially for multistage turbine molecular pump, including the casing, the front and back of casing all are equipped with the air inlet of equal distance arrangement, and the left side of casing is provided with the controller, and the inside of casing is provided with multistage turbine molecular pump, refrigeration pipe frame and two heating pipes respectively, and the inner bottom wall of casing is fixedly connected with two temperature sensors, and the right side of casing is provided with refrigeration module, and the output of refrigeration module penetrates casing and is fixedly communicated with the right -hand end of refrigeration pipe frame, and the upper surface of casing is fixedly communicated with two air ducts, and the inside of every air duct is provided with the exhaust fan motor, and the air inlet of equal distance arrangement is set up in the front and back of casing, and cooperate the exhaust fan motor in the air duct to form forced convection heat dissipation channel, thereby can accelerate air flow, effectively promote the heat dissipation efficiency of motor and bearing operation, avoid the overheating protection shutdown problem caused by the environment temperature is too high.

The utility model discloses a kind of for doping tungsten powder chlorine-free fluorine ion pickling ultrasonic powder washing device, it is related to tungsten powder processing technical field, including powder washing box, the inner chamber of powder washing box is fixedly installed with conical powder washing cylinder, the front side of powder washing box is hingedly provided with access door, the left side of powder washing box is provided with discharge mechanism, the lower portion of discharge mechanism is provided with material receiving mechanism, the bottom of conical powder washing cylinder is fixedly connected with bottom box.The utility model through the cooperation between conical powder washing cylinder, three groups of piezoelectric ceramic transducer, air pump, gas pipe, gas outlet spray head, to cover agglomeration breakage, acid liquid penetration, complex stripping whole process in ultrasonic powder washing process, while it can form forced convection in cylinder, avoid tungsten powder settlement, finally reduce powder dispersion uniformity, improve impurity desorption rate, and can reduce pickling time, improve pickling efficiency.

This invention provides a CAN converter with a heat dissipation structure, including a CAN converter body and a heat dissipation shell on the outside of the CAN converter body. A heat dissipation cavity is formed between the heat dissipation shell and the CAN converter body. Support legs are installed at the four corners of the bottom side of the heat dissipation shell. The heat dissipation shell includes an inner thermally conductive layer and an outer heat dissipation fin layer. This invention is reasonably designed. By setting up a heat dissipation shell, the thermally conductive layer quickly conducts heat, the heat dissipation fin layer increases the heat dissipation area, and a cooling fan forms forced convection cooling. The combination of multiple heat dissipation methods significantly improves the heat dissipation efficiency of the CAN converter body, enabling it to quickly and effectively dissipate the heat generated by the CAN converter body and reduce the operating temperature of the device. The addition of a thermally conductive silicone pad reduces the thermal resistance between the CAN converter body and the heat dissipation shell, further improving the heat conduction effect and ensuring that heat is transferred to the heat dissipation shell for dissipation in a timely manner.

The application discloses a kind of plastic packaging bag production with feeding device, it is related to plastic bag production technical field, specifically a kind of plastic packaging bag production with feeding device, including conveying belt and the dry box capable of completely wrapping middle part of conveying belt, the periphery of conveying belt is evenly provided with a plurality of first communication air port, the middle part of conveying belt is provided with auxiliary drying component, by the uniform multiple first communication air port of being set on conveying belt, multiple air pumps installed in auxiliary drying component, multiple shaking balls that the outer surface of conveying belt is provided with and the multiple rubber air bags that the inner periphery of conveying belt is fixedly connected are cooperated with each other, can promote air pump drive and form bidirectional forced convection at first communication air port, significantly increase the effective contact area of hot air and raw material, ensure the uniformity of airflow distribution, to solve the core problem that raw material lower surface is not dried evenly due to airflow dead angle in traditional mode.

To improve temperature uniformity in the cooling chamber of a vehicle refrigerator and enhance heat exchange efficiency. [Solution] The in-vehicle refrigerator includes a housing provided with a spaced-apart cooling chamber and a first storage chamber, a first evaporator provided in the first storage chamber, a first fan provided in the first storage chamber and including a first air intake and a first air outlet communicating with the cooling chamber, and an air duct assembly provided in the first storage chamber and extending from the first air intake to the cooling chamber, with a first end connected to the cooling chamber and a second end connected to the first air intake. The first fan forms a circulating airflow, generating heat exchange by forced convection between the air near the walls of the housing and the air in the center of the cooling chamber. This conducts the cold heat from the walls of the housing to the center of the cooling chamber more quickly, improving the temperature uniformity of the refrigerator's cooling chamber.

The present disclosure relates to a control device for a vehicle, the control device including a cover top provided on an upper end of the control device, a moisture barrier cover threadedly engaged to an upper portion of the cover top and blocking introduction of moisture from an upward direction of the control device, a main frame configured to be coupled to a lower end of the cover top and defining a receiving space for accommodating a PCB of the control device, and a fan provided at either lateral side of the main frame and generating forced convection in a first direction opposite to a lateral side of the main frame where the fan is provided, wherein the cover top is configured to have a size of a path cross section formed by a plurality of fins formed in a specific area in an upward direction, and the moisture barrier cover is substantially constant in the first direction.

The utility model relates to radiator technical field discloses a carbon nanotube cladding type radiator, including base, the base top is connected with the fixed ring of screw thread, the fixed ring inner wall is connected with carbon nanotube of screw thread, carbon nanotube inner wall is fixedly connected with aluminium alloy pipe, the aluminium alloy pipe inner wall is pasted with paraffin layer, carbon nanotube and aluminium alloy pipe top all are fixedly connected with I -shaped support beam, the top of I -shaped support beam is fixedly connected with the top plate, the recess is seted up in the top plate surface, the base right side is provided with the exhaust fan, the base left side is provided with the exhaust fan, the exhaust fan and exhaust fan bottom all are fixedly connected with the connecting block. In the utility model, the composite heat conduction structure that carbon nanotube, aluminium alloy pipe and paraffin layer constitute passes through heat conduction mode and quickly transfers heat, realizes forced convection through starting the radiator fan, and the synergistic heat dissipation effect is formed with the composite heat conduction structure, and the heat dissipation effect of radiator is strengthened.

This invention discloses an underwater cooling process that enhances the coupling properties of thermoplastic composites, belonging to the field of composite material processing technology. For thermoplastic composite parts that have just been removed from the mold and are in a high-temperature state, a specific cooling solution is used for jet cooling through an optimized nozzle system. The core of this process lies in the synergistic effect of forced convection, phase change cooling, and dynamic heat conduction. This rapidly reduces the overall temperature of the part (suppressing the formation of large-sized spherulites) while mitigating the temperature gradient in the interfacial region, promoting the full diffusion and entanglement of polymer chains to the surface of the reinforcing fibers within the viscous flow window, thereby optimizing interfacial bonding. By balancing crystallinity and residual stress, this process can increase the interfacial shear strength (IFSS) of the composite material by 15-20%.

The utility model relates to mixed reaction tank technical field discloses a kind of composite carbon source multistage dynamic mixed reaction tank, including tank body, the inside of tank body is sequentially provided with primary premixing shear cavity, secondary convection variable-diameter cavity and tertiary oscillation homogenizing cavity from top to bottom, the top of primary premixing shear cavity is fixedly provided with stator ring, the surface of stator ring is equipped with blanking hole, the inside of secondary convection variable-diameter cavity is fixedly provided with flow guide cylinder, the inner wall of flow guide cylinder is equipped with variable-diameter spiral flow guide passage, the inside of tertiary oscillation homogenizing cavity is rotatably provided with reciprocating swing flow guide plate;Rotor disc and stator ring cooperate to produce high-strength shear, turbulence and cavitation effect, directly smash high-viscosity component (such as molasses) and unsoaked solid particles, avoid lump accumulation;High-speed impact and forced convection realize multi-component preliminary homogenization, solve the problem of uneven dispersion of traditional equipment.

Exemplary aspects include heating the media and drying the ink by forced convection generated from a Coanda heater. By providing and heated air flow over a curved surface, a low pressure Bernoulli effect will acquired the media to glide over the heated forced air. Similarly, by providing a cold air over a curved surface, the media will be acquired by the same low pressure principle. The cold air will cool down the media by forced convection. Direct forced air is an efficient way to heat or cool the media. An upper flow on top of the media will facilitate the removal of the evaporated ink water and solvent. The solvent could be captured by a filter. Air heaters are significantly cheaper than infrared lamps and more robust.

The application belongs to the technical field of liquid cooling forced convection heat dissipation of high-power-density electronic equipment in the aviation industry, and is a liquid cooling cabinet device for an airborne high-power motor controller based on liquid cooling forced convection heat dissipation technology, comprising a cabinet main body, the top of which has a mounting chamber, the bottom of which is formed with a liquid cooling flow channel in a multi-channel serpentine structure, and the side surface of the cabinet main body is provided with a cooling liquid inlet and a cooling liquid outlet in communication with the liquid cooling flow channel; a liquid cooling flow channel cover plate is fixedly arranged on the bottom surface of the cabinet main body with the liquid cooling flow channel, and is used for sealing the liquid cooling flow channel. The liquid cooling cabinet has the characteristics of good temperature uniformity, good heat dissipation performance, light weight, small flow resistance, wide universality and the like. An effective solution is provided for the temperature thermal management of the airborne high-power motor controller.

The application provides an anodic oxidation film layer control method based on electrochemical regulation, which comprises the following steps: monitoring the concentration of metal ions in an anodic oxidation electrolyte in real time; adjusting the composition of the electrolyte based on the real-time concentration data; performing forced convection circulation of the electrolyte with optimized composition in the vertical direction by driving the electrolyte, and applying a pre-polarization voltage lower than that in the formal oxidation stage; immersing a workpiece to be processed in the electrolyte with activated composition, and applying electrochemical regulation based on a four-electrode mode; monitoring the growth rate of a preliminary oxidation film layer in real time; predicting optimal process parameters based on the growth rate data, and adjusting the electrochemical regulation parameters according to the optimal process parameters, so that the preliminary oxidation film layer continues to grow and forms an anodic oxidation film layer. The application can accurately control the effective electrochemical driving force applied to the surface of the workpiece, overcome the control errors caused by solution resistance and temperature drift, and thus realize high-precision and high-stability control over the growth process of the oxidation film.

The utility model relates to a kind of wet method mixed granulator, belong to granule mixing technical field, including granule mixing box and the inner box of fixedly connected to granule mixing box inner bottom wall, the inside of granule mixing box is equipped with the mixing assembly for granule mixing, the mixing assembly includes the fixed plate of fixedly connected to granule mixing box inner rear wall, the bottom of fixed plate is fixedly connected with motor box, the inside of motor box is fixedly connected with drive motor, the output shaft of drive motor is fixedly connected with connecting rod, the bottom end of connecting rod is fixedly connected with mounting frame body.This wet method mixed granulator, by mixing assembly generates forced convection and high shear field, make material realize uniform mixing in three-dimensional space, and by arranging ultrasonic transducer in four directions, utilize coupling layer to efficiently conduct vibration energy to inner box wall surface, utilize the microjet and wall high-frequency microvibration generated by ultrasonic cavitation effect, realize the peeling of adhering object, avoid resource waste.

The utility model discloses a raw material annealing furnace for screw production, including outer furnace body, furnace cover and rotation hoisting device, be equipped with inner furnace body in the outer furnace body, and form annular air channel between the outer furnace body inner side wall and the outer side wall of inner furnace body, the inner bottom portion of outer furnace body is installed with heating coil, and the inner side wall of outer furnace body is installed with several heating resistance bands, the inner top of furnace cover is fixed with installation cylinder, and installation cylinder is connected with circulating fan and fairing in proper order under, this fairing stretches into inner furnace body, install motor on the furnace cover, and the motor is connected with the impeller of circulating fan through the transmission shaft, the inner wall of inner furnace body is evenly distributed with several guide vanes that lean to the axis, and the bottom of inner furnace body is equipped with the flow -equalizing plate of open -work. The utility model discloses through the circulating fan of furnace top and conical fairing, cooperate the flow guide plate of furnace wall and the flow -equalizing plate of furnace bottom, form forced convection heat cycle in the furnace, solved the problem of traditional annealing furnace temperature distribution uneven.

The utility model discloses an embedded computer heat abstractor relates to heat abstractor field, including fan shell, turbofan and turbofan blade, the turbofan movable mounting is in the inside of fan shell, and turbofan blade fixed mounting is in the outside of turbofan blade, the both sides integration of first fin and second fin has in the outside of fan shell, and first fin is located one side at second fin, the top of fan shell is provided with fin slot. The utility model air is driven under the turbofan blade and penetrates fin, realizes forced convection heat dissipation, and the heat dissipation efficiency is greatly promoted, and the fin slot with the heat dissipation fin of annular design allows heat conduction ring and heat conduction copper pipe to install at any angle, adapts to the narrow or irregular space layout of embedded computer, and the compatibility of promoting device is compatible, and the heat conduction ring is detachable connection through the installation buckle and fan shell, and the heat dissipation assembly part can be independently disassembled, and is convenient for maintenance or replacement.

This application discloses an air cooler for industrial cold storage, belonging to the technical field of air cooler technology. The air cooler for industrial cold storage includes an evaporator mechanism, a fan mechanism, and a control mechanism, which is installed and fixed on the ventilation duct and the counterweight frame. When a windbreak cloth is needed, this invention controls the winding motor to drive the winding roller to rotate. Subsequently, the winding rope loosens, and the counterweight frame, losing its limit, is opened by the wind. After the counterweight frame is fully extended, the air cooler stops. Then, the end of the electric push rod extends and inserts into the positioning frame, thus ensuring the stability of the counterweight frame after it opens, thereby ensuring the stability of the air duct and facilitating forced convection.

The utility model relates to the technical field of air duct heat dissipation, especially relates to an exchange machine. The exchange machine provided by the utility model is provided with a fan at the both ends of the power module, the air inlet fan blows air to the enclosure, forms the positive pressure area, the air outlet fan extracts air outward, forms the negative pressure area, and the pressure gradient promotes the gas flow in the power module area, and further drives the gas flow in the whole exchange machine shell. The air pressure difference can accelerate the flow of air in the shell, and stagnation of airflow is avoided. The design takes away heat through forced convection, and compared with the existing design of unidirectional air supply or simple air extraction to the exchange machine shell, the heat dissipation efficiency of the utility model is higher.

The utility model discloses a machine seal water recycling device of PVC production device relates to PVC production technical field. Including: the water storage tank, the top of water storage tank is fixedly connected with the adjusting motor through the frame, the outer wall fixed connection of water storage tank has the heat exchange device, the inside of water storage tank is provided with adjusting device, the utility model discloses setting will outside machine seal water through the corrugated pipe, hollow screw rod and the adjusting pipe introduction water storage tank, and combine cooling pipe and fin plate close connection, cooperate the forced convection heat exchange of fan, and the heat dissipation efficiency is greatly promoted, and the machine seal water temperature is reduced fast, and the machine seal system works under the suitable temperature, realizes the filtration, cooling and recycling of machine seal water, significantly reduces the water resource waste in the PVC production process, reduces production cost, and fits the industrial water saving and sustainable development demand.