474 results about "Forced convection" patented technology

The invention relates to the technical field of metal material heat treatment, in particular to a gradient temperature control method for a stainless steel cold rolling annealing process. Comprising the steps that an annealing furnace is divided into independent temperature control sections in the strip steel conveying direction, each temperature section is provided with an electric heating wire set, a forced convection cooling air duct and a high-precision infrared temperature measurement array, temperature data are collected in real time, and a target gradient temperature curve is generated; constructing a phase change power-temperature correlation model, and outputting a theoretical gradient temperature curve; a three-stage MPC is adopted to cooperatively control and output a control signal; and the heating power and the cooling strength are adjusted in real time according to the control signal, if the temperature fluctuation exceeds the limit, the power is compensated through a PID algorithm, the strip steel speed is adjusted, and closed-loop feedback is formed. Through multi-section independent temperature control, thickness-temperature dynamic modeling and a three-level cooperative control framework, accurate tracking of a gradient temperature curve is achieved, and the quality and efficiency of the annealing process are improved.

The invention relates to an environmental test box for realizing high and low temperature rapid alternating circulation, which is mainly applied to the technical field of environmental test equipment. The test box is provided with a high-temperature chamber and a low-temperature chamber which are independent from each other, a thermal insulation layer is arranged between the two chambers, and the test box can respectively keep constant temperature environments at the highest temperature of + 75 DEG C and the lowest temperature of-50 DEG C; during a test, a sample is placed in the test bed, and the rotating shaft structure driven by the motor periodically rotates in a reciprocating manner or rotates in the same direction among different temperature zones, so that high-low temperature rapid alternating circulation is realized. The operation mode of the motor is controlled through the control system so as to simulate the accelerated aging process of the component in the temperature rapid alternating environment. According to the test box, through the design of the control system, the forced convection fan and the middle thermal insulation layer, it is guaranteed that the temperature switching process is rapid, uniform and stable. Compared with the prior art, high and low temperature circulation can be completed without overall heating and cooling of the interior of the test box, and the test box has the advantages of being high in test efficiency, capable of remarkably improving the reliability and accuracy of the high and low temperature alternating circulation test of the sample and the like.

The invention discloses a device and a method for simulating heat exchange and friction resistance measurement of an aviation high-speed motor under different working conditions, and relates to the field of heat management of high-speed rotating equipment. An additional heating sheet is attached to the outer surface of the inner rotor, and different surface structures are detachably assembled on the outer rotor to form a stator and rotor slit flow channel boundary; cooling liquid forms one-inlet and one-outlet forced convection through the radial through hole of the end cover. The rotating speed larger than or equal to 20,000 rpm, runner pressure drop and temperature data are synchronously collected through an axle load type sensor, and the heat exchange coefficient, the flow resistance coefficient and the friction resistance coefficient are calculated in real time based on energy conservation, a Darcy formula and a torque empirical formula. A real rotor surface structure is reproduced under the condition of high-speed rotation, working medium leakage is restrained through mechanical sealing, and runner blockage caused by centrifugal deformation of the surface structure is prevented through the outer rotor designed in an integrally-formed mode; the obtained convective heat transfer-resistance coefficient-friction resistance coefficient all-parameter curved surface database can guide optimization of the cooling flow channel of the aviation motor.

The invention discloses a solid waste water content prediction system and method based on an infrared thermal imager. The temperature field of the solid waste on the conveyor belt in the natural convection and forced convection moisture evaporation process is monitored and compared in real time through the thermal infrared imager, and the moisture content of the solid waste can be accurately predicted in combination with data processing, environmental parameter correction and prediction of a regression equation. Compared with a traditional sampling detection method, the method has the advantages of being high in real-time performance, non-contact, simple in equipment, good in economical efficiency and the like, can adapt to a complex industrial field environment, and provides a new technical means for intelligent and refined control over waste incineration. The system is simple in structure, high in reliability, good in detection precision and capable of achieving real-time prediction of the water content of the solid waste entering the furnace.

The invention discloses a steel heat treatment quenching and tempering device which realizes full-process automatic connection of special-shaped steel parts from furnace charging, heating, quenching to tempering through rail type butt joint of a heating furnace and a quenching bath, accurate lifting of a hydraulic driving material frame and intelligent switching of a driving unit. The procedures are seamlessly switched, so that the process period is remarkably shortened, manual intervention is reduced, and the operation risk is reduced while the production efficiency is improved; in the heating and quenching process, the charging tray drives the special-shaped part to continuously rotate, electric heating bars evenly distributed in the heating furnace are matched with forced convection stirring in the quenching pool, it is guaranteed that the temperature of all parts of the special-shaped part is evenly distributed, and the risk of thermal stress deformation is effectively reduced; the structure uniformity, the hardness consistency and the comprehensive mechanical property of the quenched and tempered special-shaped part are remarkably improved through a dynamic treatment mechanism; high-temperature waste gas drives the wind wheel to rotate through the gas guide assembly, temperature homogenization of the quenching liquid is achieved, a U-shaped pipe magnetic attraction and sedimentation dual impurity removal mechanism is achieved, and the service life of the liquid is prolonged.

The invention belongs to the technical field of additive design, comprises structure improvement and simulation analysis, and relates to an additive pipe fitting topological structure design method based on a three-period minimal curved surface. And different TPMS crystal lattices are applied to design, so that the TPMS system can adapt to various working conditions with different loads. Different filling modes are selected according to the geometrical morphology of the to-be-filled area, so that the number of interrupted areas is smaller, and the design freedom degree is higher. Through a gradient wall thickness command, a rod diameter gradual change effect appears in a non-contact area of a TPMS lattice and a part, and the supporting capacity is effectively enhanced under the condition that the removal difficulty is not improved. Adjustment of different unit densities enables TPMS crystal lattices to independently perform enhanced control on stress concentration points without affecting other areas. The actual conditions of a wind field and a temperature field are described through conjugate heat transfer analysis modeling, so that heat conduction and forced convection exist in the whole physical field at the same time, and the result accuracy is improved. According to static analysis, TPMS crystal lattices with the better strengthening effect are selected from the angle of load resistance.

The invention discloses a heat pipe thermophysical property testing device, system and method based on liquid cooling flow equalization, and the device comprises a liquid cooling flow equalization system which is provided with a plurality of parallel and mutually isolated flow channels, and a condensation section of a to-be-tested heat pipe is inserted into a liquid cooling cavity to form forced convection; an upper heating block and a lower heat insulation block of the heating unit clamp and fix an evaporation section of the heat pipe to be tested; the liquid cooling flow equalizing system is arranged on the inclination angle adjusting mechanism; the data acquisition unit comprises temperature sensors which are respectively arranged at liquid inlets and liquid outlets of the flow channels, and at least two temperature sensors which are arranged at a heat insulation section of the heat pipe to be tested; according to the system, a circulating water bath device, a high-pressure constant-flow pump, a filter and a testing device form a closed-loop liquid path. The real heat transfer amount of the heat pipe is inversely calculated through the heat absorption amount of the cooling liquid, the equivalent heat conductivity coefficient and the limit power are obtained by combining the two-point temperature difference of the heat insulation section, multiple heat pipes of different specifications are tested in parallel at a time, and the test efficiency and the data accuracy are improved.

The invention relates to the technical field of copper pipe heat dissipation, in particular to a micro-channel heat dissipation device based on a copper pipe structure, which comprises a heat dissipation substrate, a copper pipe type heat dissipation channel and a liquid cooling circulation system, the copper pipe type heat dissipation channel is composed of a plurality of plastic copper pipes and replaces a traditional micro-channel or vapor chamber structure. The copper pipe is embedded or fixed in the heat dissipation substrate or on the surface of the heat dissipation substrate, cooling liquid circulates in the copper pipe, and efficient heat dissipation is achieved through the combined action of forced convection heat exchange and heat transfer; the copper pipe has good plasticity and can be subjected to three-dimensional bending forming according to heat source distribution and spatial layout, through the synergistic effect of forced convection and phase change heat transfer, the heat transfer efficiency is improved, particularly, extremely high local heat flow density can be coped, the chip is effectively prevented from being overheated, and the heat transfer efficiency is improved. The heat dissipation channel can be bent and formed in a three-dimensional space according to heat source distribution, accurate matching with the heat source form is achieved, limitation of traditional plane heat dissipation is broken through, and optimal configuration of heat dissipation capacity and heat flux density is achieved.

The invention discloses mechanical part laser cutting machining equipment, and relates to the technical field of mechanical part machining. The device comprises a rack, a mounting plate is fixedly connected to the front face of the rack, and a laser cutting machine is fixedly connected to the bottom of the mounting plate; a protection mechanism is arranged on the front face of the laser cutting machine. A gear set is linked with a rotating shaft to drive the protective cover to be opened and closed stably, a guide column is matched with a sliding frame to enable the protective cover to move outwards to avoid collision, an extension rod compresses a spring for buffering during closing, meanwhile, an inner side cleaning pad makes contact friction with the laser cutting head, smoke residues are automatically removed, the cutting head is kept clean, the cutting precision is improved, and the service life of equipment is prolonged. The direction of the fan is intelligently switched along with the state of the protective cover, the protective cover is semi-opened during cutting, the fan obliquely adsorbs smoke dust in a cutting area, interference is avoided, the fan is vertically upward during closing, the fan cooperates with the heat conduction plate and the cooling fins to form a forced convection air channel, heat dissipation is accelerated, and the problems of cutting smoke dust pollution and equipment overheating are solved.

A comprehensive climate adaptability permafrost subgrade hydrothermal regulation system is provided. The system includes a wind-driven forced convection cooling plate, a wind-driven device, a thermal insulation layer and a capillary blocking covering layer, where the wind-driven forced convection cooling plate is laid at a bottom of a subgrade, and a slender channel is arranged in the plate; the wind-driven device is connected with the slender channel in the wind-driven forced convection cooling plate, and a liquid working medium is driven to flow in the slender channel by a pump; the thermal insulation layer is laid on an upper part of the wind-driven forced convection cooling plate; and the capillary blocking covering layer is laid on a slope.

The utility model belongs to the technical field of tank car transportation, and particularly relates to a train tank forced raw material circulation heating device which comprises a telescopic guide mechanism, a machine pump is installed on the upper surface of the telescopic guide mechanism, and a hose connecting part is arranged on the lower surface of the telescopic guide mechanism. A feeding hose connected with an inlet of the pump and a discharging hose connected with an outlet of the pump are arranged in the hose connecting part, a feeding pipe and a discharging pipe are arranged below the hose connecting part, and the upper end of the feeding pipe extends into the hose connecting part and is connected with the feeding hose; the upper end of the discharging pipe movably extends into the hose connecting part and is connected with the discharging hose; a telescopic air cylinder is arranged in the hose connecting part, and an air cylinder rod of the telescopic air cylinder is fixedly connected with the discharging pipe. According to the heating device in the technical scheme, the heated medium in the train tank is forcibly conveyed to the low-temperature part of the train tank through the pump, so that the purpose of forced convection heat exchange is achieved, and the purpose of rapidly heating the medium in the train tank is achieved.

The invention relates to the technical field of electrical equipment, and discloses a relay protection screen cabinet and a use method thereof, the relay protection screen cabinet comprises a first cabinet body, a first opening and closing door and a second cabinet body, the top ends of the first cabinet body and the second cabinet body are fixedly provided with lifting hooks, and the back surfaces of the first cabinet body and the second cabinet body are fixedly provided with heat dissipation fins. According to the relay protection screen cabinet and the using method thereof, the fan cover is communicated with the mounting cover through the connecting groove, so that the fan cover can guide external airflow to enter the mounting cover through the connecting groove and be in full contact with the internal heat dissipation fins, a directional heat dissipation channel can be formed, heat dissipation of the first cabinet body and the second cabinet body can be enhanced, dust accumulation caused by exposure of the heat dissipation fins can be avoided, and the service life of the cabinet is prolonged. And through the design of the drainage plate, the airflow generated by the fans can be dispersed to each area of the heat dissipation fins by utilizing the guide of an inclined plane, and the two groups of fans face opposite directions, so that one fan can be used for air inlet, and the other fan can be used for air outlet, thereby forming forced convection from the bottoms of the first cabinet body and the second cabinet body to the tops of the first cabinet body and the second cabinet body.

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 discloses a tubular flue gas cooler which comprises a flue gas inlet box, an inlet gas cooling tube bundle vertically connected to the bottom of the inlet gas box, a flue gas outlet box and an outlet gas cooling tube bundle vertically connected to the bottom of the outlet gas box, and the bottoms of the two tube bundles are communicated through an ash hopper to form a flue gas flow channel; a plurality of axial flow fans are arranged outside the flue gas flow channel, and air outlets of the axial flow fans are communicated with the outer wall space of the cooling tube bundle; a vibrating ash removal mechanism is arranged on the tube bundle; the axial flow fan and the temperature sensor group are interlocked to form a temperature adjusting assembly; and the vibration ash removal mechanism and the pressure transmitter group are interlocked to form a pressure difference response ash removal assembly. The air indirect cooling mode and the U-shaped flue gas flow channel design are adopted, forced convection heat exchange is conducted on the outer wall of the tube bundle through the variable-frequency axial flow fans, the moisture content and corrosivity of flue gas are prevented from being increased, and the cooling efficiency is improved by prolonging the residence time.

A graphene radiator is characterized in that the radiator comprises a heat dissipation substrate and fins arranged on the heat dissipation substrate, the heat dissipation substrate and the fins are integrally formed through injection molding of a graphene high polymer material, or the fins are formed on the heat dissipation substrate through injection molding of the graphene high polymer material on the heat dissipation substrate by adopting an alloy material. According to the graphene radiator, the graphene radiator which is good in heat dissipation effect, light in weight and low in machining difficulty is made of macromolecule graphene materials, the structure of the fins is improved, and a forced convection mechanism is changed into a heat radiation heat dissipation mechanism through graphene performance. And the problem that the heat exchange amount of a non-convection area is low or the local temperature is too high is solved.

The invention relates to a chip packaging structure and electronic equipment. The chip packaging structure comprises a heat conduction cavity, a heat dissipation assembly and a fan. The heat conduction cavity is arranged above the chip assembly and is in heat conduction connection with the chip assembly. The heat dissipation assembly is arranged in the heat conduction cavity and comprises a plurality of heat dissipation pieces arranged at intervals. The fan is arranged in the heat conduction cavity. The heat dissipation assembly and the fan are arranged at intervals in a plane parallel to the substrate, the heat dissipation assembly corresponds to the first chip, the orthographic projection of the heat dissipation assembly is at least partially overlapped with the first chip, the fan corresponds to the second chip, and the orthographic projection of the fan is at least partially overlapped with the second chip. The heat dissipation assembly and the fan are horizontally arranged in the heat conduction cavity side by side, and partition optimization of a heat dissipation path is achieved. The heat dissipation assembly establishes a collaborative heat dissipation path with upward heat conduction and forced convection for the high-heat-density chip, and the passive heat dissipation efficiency and the active heat dissipation effect are remarkably improved. Meanwhile, the vertical thickness of the packaging structure is effectively reduced through the layout, and the requirement for light and thin equipment is met.

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 invention discloses a photovoltaic panel with a double-sided photovoltaic module positioning structure, and belongs to the technical field of photovoltaic modules. And a reflector. According to the photovoltaic panel with the double-sided photovoltaic module positioning structure, back incident light is subjected to high diffuse reflection through the reflector, front direct light and back reflected light can be utilized to the maximum extent, the generating capacity of a unit area is remarkably improved, meanwhile, airflow can be guided, forced convection is formed on the back of the module, the working temperature of the photovoltaic panel main body is effectively reduced, and the service life of the photovoltaic panel main body is prolonged. The photovoltaic panel main body is adjusted to be in a vertical state through the use of the turnover mechanism, the array can be controlled to rotate after the photovoltaic panel main body is polluted by sand dust, accumulated snow or bird droppings, and at the moment, attachments naturally slide down under the action of gravity due to the huge dip angle change, so that the manual cleaning cost and water consumption are greatly reduced, and meanwhile, the cleaning efficiency is greatly improved. And after continuous rotation, the back surface of the photovoltaic panel main body faces upwards, so that simple cleaning of the back surface is realized.

The utility model belongs to the technical field of wire drawing annealing equipment, and discloses a copper rod processing annealing device which comprises an annealing box, a partition plate located in the annealing box and a cooling structure located above and on the right side of the partition plate, and the cooling structure comprises a top box fixedly connected to the top of the annealing box and a draw-off pump installed on the top box. The cooling device comprises an annealing box and a fan set assembled on the right side face of the annealing box, a spraying box is installed on the inner top wall of the annealing box and located on the right side of a partition plate, and a circulating purification box is arranged at the bottom of the spraying box. After the high-temperature copper wire enters a cooling area, air cooling airflow uniformly skims over the surface of the copper wire, a large amount of heat on the surface of the copper wire is rapidly taken away by means of a forced convective heat transfer mechanism between air and the copper wire, preliminary cooling is achieved, and the problem of thermal stress possibly caused by too large temperature difference in the subsequent water cooling process can be relieved to a certain extent.

The utility model discloses flame-retardant PE film surface treatment equipment which comprises a dust removal channel, a dust sticking roller arranged on the inner side of the dust removal channel, two supporting guide rollers rotationally arranged on the two sides of the dust removal channel, and an air cooling heat dissipation assembly arranged on the dust removal channel, comprising an air inlet barrel fixed to the top face of a dust removal channel and a cooling fan installed on the inner side of the air inlet barrel. The PE film surface treatment equipment in the prior art is improved and optimized, the air cooling heat dissipation assembly is designed on the dust removal channel, the surface temperature of the dust sticking roller is reduced through forced convection, high-temperature migration of a flame retardant in the flame-retardant PE film treatment process is inhibited, the surface performance consistency and the product quality of the treated flame-retardant PE film are ensured, and the service life of the flame-retardant PE film is prolonged. And meanwhile, by designing an adjusting structure, the height of the dust sticking roller is properly adjusted to properly tension the film material, it is guaranteed that the flame-retardant PE film is tightly attached to the dust sticking roller, and the surface treatment dust removal efficiency of the flame-retardant PE film is improved.

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.

The utility model provides waxberry low-temperature unfreezing flow equalizing equipment, which comprises an unfreezing chamber main body with a box door and a movable multi-layer tray rack capable of being arranged in the unfreezing chamber main body, a forced convection unit is arranged at the top of the unfreezing chamber main body, and a temperature control unit, an air supply pressurizing cavity and an air return negative pressure cavity are arranged in the unfreezing chamber main body. The air supply pressurization cavity and the air return negative pressure cavity are formed in the two opposite side walls in the unfreezing chamber body respectively, an air supply air inlet communicated with the air outlet end of the forced convection unit is formed in the top of the air supply pressurization cavity, and an air return air suction opening communicated with the air suction end of the forced convection unit is formed in the top of the air return negative pressure cavity. A plurality of air outlets facing the interior of the thawing chamber body are formed in the side portion of the air supply pressurizing cavity, the sum of the sectional areas of the air outlets is smaller than the sectional area of the air supply inlet, a plurality of air return openings facing the interior of the thawing chamber body are formed in the side portion of the air return negative pressure cavity, and the sum of the sectional areas of the air return openings is smaller than the sectional area of the air return suction opening. The waxberry thawing device improves waxberry thawing uniformity.

The utility model discloses a rotary clamping type bulb lamp which comprises a rotary clamping type lamp holder, the bottom of the rotary clamping type lamp holder is fixedly connected with a heat dissipation barrel, the bottom of the heat dissipation barrel is in threaded connection with a lampshade, the interior of the lampshade is fixedly connected with a lamp body module, and the top of the lamp body module is fixedly connected with a heat conduction block. According to the bulb lamp, the rotary clamping lamp holder is fixedly connected with the heat dissipation barrel, and the lampshade is in threaded connection with the heat dissipation barrel, so that stable installation of the bulb lamp is achieved, a relatively closed inner space is formed, and the lamp body module is effectively protected. Meanwhile, the circular-truncated-cone-shaped heat conduction block is matched with the annularly-distributed first heat dissipation fins, the heat dissipation area is remarkably increased, heat generated by the lamp body module can be rapidly dissipated in combination with forced convection of the fan, the heat dissipation efficiency is greatly improved, and therefore the service life of the lamp beads is prolonged, the light attenuation phenomenon is reduced, and the LED lamp is particularly suitable for high-power illumination scenes and has a wide application prospect. The device has the advantage of being good in heat dissipation effect.

The invention provides an anodic oxidation film layer control method based on electrochemical regulation and control. The method comprises the steps that the metal ion concentration in anodic oxidation electrolyte is monitored in real time; adjusting electrolyte components based on the real-time concentration data; performing forced convection circulation on the electrolyte with optimized components in the vertical direction by driving the electrolyte, and applying a pre-polarization voltage lower than a formal oxidation stage; the method comprises the following steps: immersing a to-be-treated workpiece into an electrolyte with activated components, and applying electrochemical regulation and control based on a four-electrode mode; monitoring the growth rate of the preliminary oxidation film layer in real time; and optimal process parameters are predicted based on the growth rate data, and electrochemical regulation and control parameters are adjusted according to the optimal process parameters, so that the preliminary oxidation film layer continues to grow, and the anodic oxidation film layer is formed. Effective electrochemical driving force applied to the surface of the workpiece can be accurately controlled, control errors caused by solution resistance and temperature drift are overcome, and therefore high-precision and high-stability control over the oxidation film growth process is achieved.

The present invention relates to a temperature and humidity control and mechanical control device for processing and transmitting ultra-wide coated fabrics and its control method. The device comprises a multi-stage roller group, a temperature and humidity control unit, a dynamic control module and a mechanical adjustment unit. The multi-stage roller group realizes staged stress control during fabric transmission; the temperature and humidity control unit sprays water vapor in the stretching stage, and adjusts the temperature and humidity through a forced convection heat exchange device in the relaxation and under-relaxation stages; the dynamic control module accurately controls the temperature and humidity parameters of each stage; the mechanical adjustment unit allows the primary and secondary rollers to slide and move within a certain range, and the middle and rear rollers are fixed. The control method includes staged stress control, staged temperature and humidity control and dynamic mechanical control. The present invention improves the coating quality and production efficiency of ultra-wide coated fabrics by optimizing the device and control method.

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 utility model provides an autoclave condensate water recovery waste heat heating system adopting a fan coil assembly, and belongs to the technical field of autoclaved aerated concrete manufacturing and heat energy recovery. In the heating system, the primary side of a heat exchanger is connected with an autoclaved condensed water recycling storage tank, a heating connector arranged on the secondary side of the heat exchanger is connected with two branch main pipes, the first branch main pipe is used for supplying high-temperature condensed water to a marshalling area, and the second branch main pipe is used for supplying high-temperature condensed water to a curing area; a plurality of first hot water branches arranged in a grouping area are connected with a first branch main pipe, a plurality of second hot water branches arranged in a maintenance area are connected with a second branch main pipe, and the first hot water branches and the second hot water branches are both connected with a plurality of fan coil assemblies. Under the action of a fan of the fan coil assembly, forced convection heating is conducted on the area where the fan coil assembly is located. According to the utility model, the energy consumption of the aerated block and plate production process is greatly reduced.

The application provides a transformer with internal element safety monitoring function, relates to the technical field of transformer cooling, and comprises a transformer body and a heat dissipation module, wherein the heat dissipation module is fixedly arranged on the transformer body; cooling boxes are symmetrically arranged on the left side and the right side of the heat dissipation module, and heat dissipation fins are equidistantly connected to the side wall between the two cooling boxes. After the fluorescent optical fiber sensor detects the change of oil temperature, the change is fed back to the controller, the controller starts the electromagnetic valve and the heat dissipation fan, the electromagnetic valve controls the flow and on-off of the cooling oil, the efficient cooling of the transformer is ensured, the air direction is perpendicular to the heat dissipation groove at the bottom of the cooling box, the air flow at the bottom of the cooling box is accelerated through forced convection, the heat transferred to the bottom of the oil tank by the cooling oil is taken away, the cooling speed of the cooling oil is further increased, and the cooling of the internal elements of the transformer is accelerated.