1189 results about "Convection flow" patented technology

The invention relates to the technical field of intelligent control, and discloses a self-adaptive temperature curve control system for high-temperature alloy vacuum casting, which comprises a sensing module, a control module and a control module, and is characterized in that the sensing module acquires multi-point temperature information and preprocesses the information to obtain temperature distribution in a furnace; the acquisition module obtains vacuum environment parameters. The simulation module establishes a three-dimensional dynamic coupling model based on heat conduction, radiation, convection and phase change heat effect, and obtains a real-time temperature evolution prediction result. The generation module obtains a target temperature curve of the corresponding stage. The prediction control module collects a real-time temperature evolution prediction result and a target temperature curve, deviation calculation and trend analysis are carried out, and a heating power and cooling flow control instruction is generated. And collecting product feedback errors and carrying out self-learning correction on prediction model parameters to obtain an optimized control output result. The control and optimization of the high-temperature alloy vacuum casting temperature field are realized, and the structure uniformity of castings and the quality stability of finished products are improved.

The invention discloses a PINN-based transformer convective heat transfer coefficient acquisition method, system and device and a medium, and relates to the technical field of transformers, and the method comprises the steps: building a three-dimensional thermal field simulation model based on transformer structure parameters, obtaining temperature field data through multi-physics field coupling simulation, building a sample set, training a physical information neural network model, and obtaining the convective heat transfer coefficient of a transformer. A loss function is defined, through weight adjustment and optimization algorithm training, loss change is dynamically monitored, convective heat transfer coefficient distribution is inversed, an inversion coefficient is substituted into a thermal model for forward calculation, iterative optimization is performed through comparison with independent measurement data, and accuracy and applicability are verified through actually measured temperature data. According to the method, the dependence on experimental data is reduced, the high-precision and high-efficiency acquisition of the convective heat transfer coefficient of the spatial change of the transformer is realized, and a reliable technical means is provided for thermal design and state evaluation of the transformer.

The invention discloses a photovoltaic-driven IDC electric-cooling linkage method and device, and belongs to the technical field of IDC electric-cooling linkage, and the method comprises the following steps: S1, constructing a gravity energy storage structure; s2, the gravity object is lifted to the highest point of the gravity object channel through the gravity energy storage structure; s3, air at the bottom of the gravity object channel is compressed for the second time, and a thermal cracking reaction is carried out; s4, thermal cracking gas generated by the thermal cracking reaction is drained, and combustion products are discharged into a gas storage chamber; s5, the generated steam waste heat pushes a turbine in a turbine chamber to do work for power generation; and S6, domestic hot water and night heating hot water are prepared, convective heat exchange is conducted, the low-temperature reclaimed water obtained after heat exchange is heated into high-temperature steam in a cooler, the high-temperature steam enters a turbine to become high-temperature reclaimed water, and the high-temperature reclaimed water flows into a control center or a water storage pool. The organic matter compressed garbage is used as a gravity object for gravity energy storage, and heavy oil, solid fuel, adsorbents and other high-value products are produced in the gravity energy storage process.

The invention discloses an in-tank convection prevention device and method. The in-tank convection prevention device comprises a storage tank body, a heat insulation module, a shielding corrugated plate, a bonding connecting strip and a convection blocking strip. According to the convection prevention method, the heat insulation module is firmly fixed by bonding the connecting strips, and a gas vertical flowing channel in a gap between the storage tank body and the heat insulation module is forcibly cut off by utilizing the transversely arranged convection blocking strips; according to the storage tank, a'thermosyphon 'closed circulation loop causing heat transfer is effectively damaged, continuous gas convection is avoided, and therefore structural damage or deformation of the storage tank body caused by local low-temperature impact is effectively prevented while the overall cold insulation performance is greatly improved and the cold loss is reduced.

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 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 relates to the technical field of material mechanical property testing, and provides an ultralow-temperature slow strain mechanical tensile test platform which comprises a vacuum Dewar unit, a liquid helium temperature control unit, a slow strain tensile unit, a measuring unit and a control unit, the vacuum Dewar unit comprises a vacuum Dewar body and is used for providing a closed low-temperature test environment; the liquid helium temperature control unit comprises a direct injection module and a recovery module, the direct injection module is used for directly injecting liquid helium to the gauge length section of the sample for cooling, and the recovery module is used for recovering and recycling unevaporated liquid helium; the slow strain stretching unit is used for stretching a sample arranged in the vacuum Dewar body at a low strain rate; the measuring unit is arranged in the vacuum Dewar body and is used for monitoring the temperature, the force value and the strain data of the sample in real time. Liquid helium is used as a cold source, the liquid helium is directly aligned to the gauge length section of the sample through the direct injection module, and compared with a traditional liquid helium steam natural convection heat exchange mode, the heat exchange coefficient is increased, and automatic precise temperature control is achieved.

The invention relates to the technical field of artificial intelligence, in particular to a non-deterministic boundary thermal convection flow field intelligent analysis method based on deep learning, which comprises the following steps: acquiring sparsely distributed training data in a thermal convection system, constructing a physical information neural network and designing a composite loss function comprising a prediction error, a physical constraint error and a boundary condition error; and dynamically adjusting a weight coefficient by using a quasi-Newton optimization algorithm to carry out network training, and finally realizing prediction of full-field physical quantity distribution and inversion of missing boundary conditions. According to the method, a fluid mechanics control equation is used as a physical constraint to be embedded into a deep learning framework, the dependence of an existing calculation method on accurate boundary conditions is overcome, and the problems of flow field analysis and parameter inversion caused by unknown boundary conditions or difficulty in direct measurement are effectively solved; the method has important application value in engineering scenes such as aero-engine thermal management.

The invention provides a temperature prediction and adjustment method for a low-temperature catalytic desulfurization and denitrification device based on deep learning, and belongs to the technical field of temperature prediction based on deep learning. The method comprises the following steps: firstly, acquiring nine types of multi-source time series data such as flue gas inlet parameters, ammonia injection rate, heating power and the like based on a physical decoupling idea, and constructing a temperature characteristic data set; secondly, designing a feature extraction module based on physical decoupling, and respectively modeling convective heat transfer, catalytic heat release and thermal inertia processes through three branch networks; thirdly, constructing a space-time decoding prediction module, fusing multi-physical process characteristics and predicting a future temperature field; and finally, designing a multi-stage risk early warning and intelligent adjusting module, and generating a control instruction in combination with gradient optimization to realize temperature regulation and control. According to the method, the temperature prediction precision and the physical interpretability are improved, advanced risk prediction and adjustment are realized, and the engineering applicability is high.

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 relates to a source, network, load and storage integrated system which comprises a source, network, load and storage integrated device body, a dehumidification mechanism is arranged in the source, network, load and storage integrated device body, and a heat dissipation mechanism is arranged on the back face of the source, network, load and storage integrated device body. According to the device, the sliding support in threaded fit with the lead screw reciprocates to periodically extrude the compressed air bag, air flow generated through extrusion sequentially passes through the air conveying pipe, the one-way valve and the air storage box and then is jetted out from the air jet head, the surfaces of the cooling fins are continuously blown, accumulated dust is removed, and air convection is enhanced; according to the structure, the heat conduction plate and the heat dissipation fins are always kept in a clean and efficient heat exchange state, heat dissipation performance reduction caused by dust blockage is effectively avoided, it is guaranteed that the temperature of the system is stable during high-power continuous operation, and the overall heat dissipation efficiency and reliability of the source-network-load-storage integrated system are improved.

The invention discloses an external clamping type flow sensor medium temperature calculation method, and relates to the technical field of testing and metering, and the method comprises the steps: obtaining the outer wall temperature measurement values of two sensors through a temperature collection device; by means of double-temperature-probe averaging treatment, accidental errors of single-point measurement are effectively reduced, three heat transfer mechanisms of heat transfer, solid heat conduction and convection-radiation combined heat dissipation are constructed, a fluid dynamic criterion is introduced to accurately calculate a convection heat transfer coefficient, quantitative heat transfer models outside and inside the tube are constructed, and the heat transfer efficiency is improved. By introducing an empirical formula dynamically coupled with the environment wind speed and a fluid mechanics criterion correlation formula based on the Reynolds number criterion, scene self-adaption accurate calculation of the key heat exchange coefficient is achieved, iterative correction of fluid physical property parameters is combined, and through iterative calculation and real-time correction of the physical property parameters, the real-time correction of the fluid physical property parameters is achieved. A three-layer progressive error correction system of dynamic time correction, scene database correction and multi-dimensional anti-interference correction is established, and high precision and high reliability of temperature calculation are achieved.

The invention discloses a steel plate heat treatment model parameter correction method, device and equipment and a storage medium, and relates to the technical field of industrial process modeling and optimization control, the steel plate heat treatment model parameter correction method comprises the steps that a to-be-optimized steel plate heat treatment model is obtained, and the steel plate heat treatment model comprises a radiation coefficient and a convection coefficient; constructing a target function according to the actual furnace temperature data and the actual plate temperature data, wherein the target function is used for quantifying a prediction error of the steel plate heat treatment model; performing iterative optimization on the radiation coefficient and the convection coefficient through a covariance matrix adaptive evolutionary strategy algorithm until the value of the target function is smaller than a preset function threshold value, and obtaining a target parameter; and the target parameters are used for updating the steel plate heat treatment model, and parameter correction is completed. According to the method, the parameters of the steel plate heat treatment model can be efficiently and accurately corrected, and low efficiency and inaccuracy of manual trial and error are avoided.

The invention discloses a compression system end area flow regulation and control method based on blade inner cooling under a low Reynolds number. Firstly, through calculation or measurement, a compression system end area three-dimensional flow field under different Reynolds numbers is obtained, and the end area loss variation degree is quantified. Then, revealing regulation and control rules of different isothermal cooling wall surface conditions on near-wall fluid physical property parameters, boundary layer growth rate and end region secondary flow migration intensity under a low Reynolds number, and establishing a correlation model of end region loss reduction and efficiency improvement and wall surface cooling intensity; and on the basis, a blade built-in convection cooling channel structure is designed, the cooling channel and blade surface flow heat characteristics are analyzed based on a conjugate heat transfer method, and inner cooling channel structure parameters are optimized until the wall surface temperature drop amplitude meets the preset requirement. And finally, checking the wall surface cooling effect, and measuring end region performance parameters during inner cooling regulation and control under a low Reynolds number to complete scheme verification. By introducing blade inner cooling, the flow characteristic of an end region can be remarkably improved on the premise that the structural complexity is not increased as much as possible, and stable and efficient operation of a compression system under the low Reynolds number is guaranteed.

The invention discloses a graphite purification furnace based on a gradient flow-equalizing gas permeation structure and a gas distribution method thereof, belongs to the technical field of high-purity material preparation, and aims to solve the problem of inconsistent product purification degree caused by non-uniform gas flow distribution in a traditional purification furnace. The core is that an annular gas flow equalizing cavity filled with a graphite soft felt is constructed in a heat insulation layer, and gas realizes pressure equalization and preheating in the cavity; micropores distributed in a gradient mode are formed in the inner-layer heat insulation hard felt to serve as a seepage face, natural convection is resisted through the distribution strategy that the upper portion is dense and the lower portion is sparse, and uniform and low-speed seepage of gas from the periphery to the center is achieved. The device also supports partitioned gas inlet and can cooperate with a heating system to realize fine regulation and control of a temperature-atmosphere field in the furnace, and the scheme can significantly improve the product purification uniformity, the gas utilization rate and the process flexibility, and is compact and reliable in structure.

The invention relates to a method for predicting nutation transmission time-varying meshing thermal stiffness of a double-arc spiral bevel gear, which comprises the following steps of: setting convective heat transfer coefficients of a gear meshing surface, a non-meshing surface and a gear end surface in an interaction module according to boundary conditions, and applying surface heat flow in a load module according to an obtained meshing area, so as to predict the nutation transmission time-varying meshing thermal stiffness of the double-arc spiral bevel gear. A heat transfer DC3D8R grid is selected as a grid type, and according to a boundary formula, a temperature field during meshing of the double-arc spiral bevel gear is finally calculated; in a Model of ABAQUS software structure simulation, a load module applies a predefined temperature field, a temperature field odb file is loaded into the Model, and structure simulation is carried out; according to the method, temperature field distribution and meshing characteristics can be combined, the time-varying meshing thermal stiffness of the nutation transmission double-arc spiral bevel gear can be accurately predicted, a theoretical basis can be provided for transmission performance evaluation and service life prediction of a gear pair, and important engineering value is provided for design and optimization of a high-performance gear transmission system.

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 insulation board, and disclose a double -faced composite fireproof renewable insulation board, including the board body, the board body is sequentially provided with the heat preservation layer from inside to outside. The double -faced composite fireproof renewable insulation board, when the high temperature or open fire appears outside, the first fireproof layer and the second fireproof layer of both sides give priority to play the fire -resistant barrier effect, rely on material high -temperature -resistant, non -combustion characteristics, block flame spread and high -temperature transmission, the heat insulation layer in the middle, with the help of the closed bubble structure evenly distributed inside, reduce air convection and heat conduction, realize heat barrier, maintain the temperature difference of both sides of the board body to reach the heat preservation effect, the reinforcing layer is connected closely with the heat preservation layer and the second fireproof layer through epoxy resin adhesive, both strengthen the bonding strength of each layer, prevent interlayer peeling, and improve the overall structural stability of the board body, avoid its deformation, cracking when stressed or temperature changes.

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.

The utility model relates to the technical field of conveying pipeline protection, and discloses a pipeline external protection mechanism in an extreme environment, which comprises a pipeline, two groups of mounting flanges and a protection component. According to the pipeline external protection mechanism in the extreme environment, the outer side of the pipeline is sleeved with a set of sleeves, the two ends of the sleeves achieve sealing of the contact portions of the pipeline and the sleeves through sealing assemblies, temperature loss caused by air convection is reduced, meanwhile, through the multiple sets of annular pipes in the pipeline and argon filled in the annular pipes and the heat preservation cavity, the temperature loss caused by air convection is reduced; meanwhile, through supporting and shaping of the annular pipe, it is guaranteed that the whole sleeve is not prone to deformation, the annular groove formed in the outer side of the sleeve can guide rain and snow accumulated at the top end of the sleeve to flow downwards, the rain and snow are prevented from being accumulated at the top of the pipeline, and the service life of the sleeve is prolonged. And therefore, the safe use performance of the whole pipeline under extreme climate conditions is improved.

The invention relates to the technical field of simulation optimization, and discloses a charging module heat dissipation optimization method based on temperature field simulation, and the method comprises the steps: firstly discretizing a heat dissipation space into voxel units, and collecting flow heat data; calculating the flow resistance sensitivity according to the relationship between the flow velocity vector and the main wind direction; calculating an effective convection potential energy density and a gradient vector thereof by combining a Reynolds number and a temperature difference; then, generating a chasing cold source driving vector based on the heat flux demand of the component; establishing a thermal wake flow cone projection model, and calculating a thermal wake flow rejection vector; generating a flow resistance avoidance vector in combination with the regional flow velocity direction; and finally, performing weighted synthesis on the three vectors to obtain optimized displacement, and updating coordinates of the component. According to the technical scheme, through multi-physics field coupling analysis, while a driving component finds a high cooling potential area, flow channel smoothness and thermal wake avoidance are effectively considered, and deterministic optimization of the charging module layout is realized.

The present invention relates to a method and apparatus for exchanging gas between two exchange media using an exchange chamber (1) disposed within the housing of an exchange unit, wherein the exchange chamber (1) is divided into two chamber regions by at least one membrane (2), in which the first side of the membrane (2) is in contact with the first exchange medium in the first chamber region, and the second side of the membrane (2) is in contact with the second gaseous exchange medium in the second chamber region, the first chamber region having a connection for the first exchange medium, the first chamber region being incorporated into a first conduit (3) by this connection, and the first exchange medium being passed through the first chamber region using the first conduit. The second chamber region has a connection for a second gaseous exchange medium, and by this connection the second chamber region is incorporated into the second conduit (4), and the second exchange medium can be guided through the second chamber region using the second conduit, and the gas to be exchanged can be transported across the membrane (2) by diffusion, and the apparatus has a pressure generator (9a), and the pressure generator (9a) can be used to generate a pressure difference of at least 10 mmHg of the second exchange medium relative to the ambient atmospheric pressure in the second chamber region, and at least one membrane (2) is permeable to diffusion with respect to the gas to be exchanged, but impermeable to convection.

The present application relates to a kind of energy-saving and environment-friendly mechanical ventilation cooling tower, by optimizing the gap design of cooling fan blade and wind cover, using the negative pressure generated by blade rotation to suck in cooling air, and the hot water in heat dissipation assembly forms convection heat exchange, realizes efficient cooling.At the same time, the ascending airflow drives the blade with porous fiber bundle to rotate, on the one hand, the kinetic energy is recovered by wind power generator and converted into stable electric energy through control inverter unit, on the other hand, the water vapor in air is absorbed and condensed by porous fiber bundle, and water resources are recovered.The present application does not need to transform existing cooling tower, with simple structure, easy installation, energy saving, water saving and environmental protection effect, and significant economic benefit.

The present invention relates to an automatic system (1) and a method for monitoring the state of thermal insulation for buildings and infrastructures (2). The system comprises: - at least one internal measuring device (10) and one external measuring device (20), applied to the walls; - at least one Gateway (30) for a long-range communication system (Lo.Ra. or similar); - at least one Server (40) for automatic data storage and analysis. The measuring devices (10, 20) acquire and evaluate the thermal conductivity of the walls on which they are applied, measuring the thermal conductivity at preset intervals through a set of sensors that allow the appropriate corrective measures determined by wind and air humidity (including the possible effects of rain) to be applied. Once the data has been acquired and the thermal conductivity calculation has been carried out (both with the theoretical formulas and by applying the convection correctives), the internal device (10) sends the data to the Server (40), which processes them, determining the variations in thermal conductivity through regression algorithms, in order to estimate the rate of deterioration of the insulation. If the deterioration rate exceeds the standard, estimated from previous data, the system sends an alarm.

The tail gas heat energy recovery system comprises a heat collection module, and the heat collection module comprises a pipe seat, a sealing pipe vertically fixed to the top of the pipe seat, a pipe cover transversely fixed to an opening in the end of the sealing pipe, and a heat transfer pipe concentrically arranged in the sealing pipe. An annular cylindrical convection cavity is formed between the outer wall of the heat transfer pipe and the inner wall of the sealing pipe; the heat collecting module further comprises an air inducing pipe vertically arranged in the annular cylindrical convection cavity and located in front of the heat transfer pipe, an air inlet pipe transversely arranged on the front side of the sealing pipe in a penetrating and inserting mode, and an air outlet pipe transversely connected to the front side of the sealing pipe in an inserted mode, communicated with the interior of the annular cylindrical convection cavity and lower than the air inlet pipe. According to the utility model, the heating time of the furnace gun is effectively reduced, and the feeding speed of blanks is increased, so that the fuel consumption is greatly reduced to achieve the effects of energy conservation and environmental protection, the energy waste is effectively avoided, the production efficiency is effectively improved, and the potential safety hazard is eliminated.

The application relates to the technical field of glass production, and particularly discloses thick plate glass, a preparation method thereof and application. The preparation method comprises the following steps: preheating: after the glass is placed, the glass is preheated in a preheating furnace, the upper surface preheating temperature of the preheating furnace is set to be 320-360 DEG C, the lower surface preheating temperature of the preheating furnace is set to be 310-350 DEG C, and the preheating convection fan rotating speed efficiency is set; heating: after the glass is preheated, the glass is heated in a heating furnace, the glass moves in the heating furnace, the upper surface heating temperature of the heating furnace is set to be 680-690 DEG C, the lower surface heating temperature of the heating furnace is set to be 670-680 DEG C, and the thick plate glass is prepared after the heating is completed. The application reduces the loss of the furnace corner part of convection, increases the heating efficiency of the middle part of convection, thereby improving the overall quality of the thick plate glass, reducing the thermal spot and the white mist appearing in the middle part of the glass. In addition, the heating is more reasonable, electricity is saved, and the production cost is reduced.

The embodiment of the invention discloses a storage device and electronic equipment. A middle frame is arranged in a machine shell of the storage device, an inner cavity of the machine shell is divided into a first space and a second space, and an air inlet and an air outlet are formed in the middle frame; a rotating disc body, a heating power device and an air guide component are located in a first space, an air inlet is located in the side close to the rotating disc body, and an air outlet is located in the side close to the heating power device; a drainage air duct of the air guide component comprises an air induction opening and an air exhaust opening, the air induction opening is adjacent to the air inlet, and the air exhaust opening is located above the heating power device. When the rotating disc body works, air on the second space side is sucked into the first space side through the air inlet and flows to the exhaust outlet along the drainage air channel, and a convection heat exchange path is constructed and formed for the heating power device. In addition, all components for constructing the convection heat exchange path are located in the machine shell, the sealing level of the machine shell can be set according to the actual requirements of application scenes, the heat dissipation effect is improved, and meanwhile good adaptability is considered.

This utility model provides a towel circulating heating system, including a cylinder, a chassis, and a heating component. The cylinder is provided with an equipment chamber and a heating chamber. A hot air circulation channel is formed by a fixed plate. The PTC heating device and the fan work together to make the hot air form a closed-loop convection through the air outlet and the circulation part, so as to achieve uniform heating of the towel. The chassis is provided with a drain hole and an anti-slip support column to effectively discharge condensate and enhance stability. The filter component can adsorb fiber impurities and keep the airflow clean.

The present application belongs to the floor lamp technical field, the backlight formula floor lamp of the present application, through the collaborative design of structure modularization and airflow guide, realizes the detachable structure under the premise of ensuring the high-power lighting heat dissipation performance, significantly reduces the packaging, transportation and installation cost: the heat dissipation frame is through the split type layout cooperation of main heat sink and annular heat sink, with radial heat dissipation fin and heat dissipation channel, combined with the first air inlet air duct, the second air inlet air duct formed between the inverted conical cover cavity of the suspension bottom cover and the air guide, constructs the convection heat dissipation path of the bottom double side air inlet, guided by the heat dissipation fin and discharged from the air outlet, while guaranteeing the heat dissipation demand of high-power light source, the heat dissipation frame, annular bottom cover, suspension bottom cover and lamp stand are all assembled by detachable clamping or connecting structure, so that the product can be disassembled into multiple modular components for flat packaging, greatly reducing the packaging volume, reducing the transportation occupied space and logistics cost, and the user can complete the assembly by simply clamping.

The invention relates to a preparation method of laminated glass. The preparation method comprises the following steps: S1, obtaining initial laminated glass; s2, the initial laminated glass is transferred to a heating furnace, a plurality of convection mechanisms are arranged in the heating furnace, the initial convection frequency set values of all the convection mechanisms are the same, and the initial laminated glass is divided into a first part and a second part in the conveying direction of the initial laminated glass; in the heating furnace, when the first part of the initial laminated glass passes through each convection mechanism, the convection frequency of the convection mechanism is an initial convection frequency set value; when the second part of the initial laminated glass passes through each convection mechanism, only the convection frequency of the convection mechanism corresponding to the second part is reduced, and when the second part is far away from the convection mechanism, the convection frequency of the convection mechanism returns to an initial convection frequency set value; and S3, rolling to obtain the laminated glass. According to the method provided by the invention, the film is not bonded with the two pieces of glass in advance before rolling, so that gas can be smoothly discharged, and meanwhile, the edge sealing effect is kept.