40 results about "Internal heat transfer" patented technology

The invention relates to the field of food production equipment, in particular to stirring and pulping equipment for jam processing and a stirring method thereof.The stirring and pulping equipment comprises a pulping barrel and a shaft pipe, the shaft pipe is arranged in the pulping barrel, end covers supporting the shaft pipe to rotate are fixed to the two ends of the pulping barrel, and a crushing cutter is arranged in the middle section of the shaft pipe; and an air inlet assembly communicates with an opening in the outer end of the shaft pipe, a driving piece for supporting the shaft pipe to drive the crushing cutters to rotate is fixed to the outer side of the end cover, and the shaft pipe is of a hollow circular pipe structure. The mounting cover, the side pipe and the cutter body of the crushing cutter form an air passage, air is directly sprayed into materials through air holes densely distributed in the cutter body, a heat transfer path is shorter, jam can be directly contacted, processing heat can be rapidly taken away, and a booster fan structure can be formed without an additional driving part; integrated arrangement of pulping and cooling on the cutter body is achieved, energy consumption is reduced, and the equipment structure is simplified.

The invention relates to the technical field of heat exchanger design, and provides a supercritical LNG heat exchanger design method and system.The method comprises the steps that A, a wing-shaped fin spoiler is adopted to be installed in a PCHE channel, an internal spoiler structure matched with the channel is formed, and the heat transfer performance of a supercritical LNG mixed working medium is enhanced; b, by adjusting the heat transfer process of the mixed working medium in the channel, the heat transfer performance and the flow resistance of the mixed working medium in the channel of the PCHE are balanced; c, regulating and controlling operable parameters through a multi-objective numerical optimization technology so as to balance the channel internal heat transfer performance and flow energy consumption of the PCHE; wherein the operable parameters are used for directly regulating and controlling the heat transfer and flow process in the PCHE channel. According to the invention, the average wall temperature can be reduced by 2.24% through the wing-shaped fin structure, and the increase of the pressure drop in the PCHE channel is controllable.

The utility model relates to the technical field of cables, and discloses a high-strength copper-core silver-plated special high-temperature cable, which comprises a conductor and further comprises a conductor shielding layer arranged on the outer side of the conductor, an insulating layer arranged on the outer side of the conductor shielding layer, and an insulating shielding layer arranged on the outer side of the insulating layer. The inner protection layer is arranged on the outer side of the insulation shielding layer, and an outer protection layer is arranged on the outer side of the inner protection layer; according to the utility model, fluoroplastic (such as PTFE and FEP) is used as the insulating layer, the long-term tolerable temperature can reach more than 200 DEG C, the chemical corrosion resistance is strong, the high-temperature resistance of the cable is improved, the high-temperature-resistant metal braid layer (such as tinned copper) is used as the outer layer to reinforce mechanical protection, the flexible silica gel is used as the inner layer to improve the bending resistance, and the service life of the cable is prolonged. Corrugated grooves are designed in the inner wall of the protective sleeve, so that the heat dissipation area can be increased; the heat conduction filling material boron nitride filling material is embedded in the protection sleeve so that internal heat conduction efficiency can be enhanced and heat radiation efficiency in the cable can be enhanced.

The utility model discloses a microwave hot air coupling heating device. The microwave hot air coupling heating device comprises a box body, a conveying mechanism, a microwave heating mechanism and a hot air heating mechanism, the box body is provided with a feeding hole and a discharging hole; the conveying mechanism is installed in the box body and is configured to convey materials entering the box body from the feeding port to the discharging port to be discharged. The microwave heating mechanism is communicated with the box body and is used for emitting microwaves into the box body; the hot air heating mechanism communicates with the box body and is used for conveying hot air into the box body. According to the microwave hot air coupling heating device, the inside and the outside of the asphalt reclaimed material are simultaneously heated and dehumidified, so that the heating quality of the asphalt reclaimed material is ensured, the mass heat transfer efficiency in the asphalt reclaimed material is improved, and the problems of edge overheating effect and thermal runaway are avoided.

The invention provides a composite pole piece, a preparation method thereof and a secondary battery. The composite pole piece comprises a current collector and a coating arranged on the surface of at least one side of the current collector, the coating is an alloy coating, and the preparation process of the composite pole piece comprises the following steps: sequentially smelting and cooling raw materials containing a nickel source, a titanium source, a molybdenum source, an aluminum source and a carbon source to obtain a first product; performing heat treatment on the first product to obtain a second product; carrying out atomization treatment on the second product to obtain a powdery third product; and coating at least one side surface of a current collector with the third product to form an alloy coating so as to obtain the composite pole piece. According to the invention, the functional shape memory alloy (SMA) is coated on the current collector as the thermal response coating, so that the purpose of adjusting the gap between the pole pieces in real time according to the temperature change is achieved, and the technical effects of optimizing the heat transfer path in the battery cell, reducing the risk of thermal runaway and improving the overall safety of the battery are achieved.

The embodiment of the application provides a spiral pipe heat exchanger performance test method and system based on sensor data, relates to the technical field of heat exchanger performance test, and comprises the following steps: when the spiral pipe heat exchanger is in a normal running state, a disturbance signal that does not affect a production process is applied to a thermal fluid control parameter of the spiral pipe heat exchanger; temperature, pressure and flow data of fluid at an inlet and an outlet of the spiral pipe heat exchanger are synchronously collected; correlation analysis is performed on the disturbance signal and the temperature, pressure and flow data of the fluid, so that characteristic parameters of internal heat transfer and fluid flow instantaneous efficiency of the spiral pipe heat exchanger are obtained; according to the characteristic parameters and a preset thermodynamic model, contribution proportions of dirt in a thermal fluid channel and a cold fluid channel of the spiral pipe heat exchanger to heat exchange performance reduction are obtained; and according to the contribution proportions, an operation adjustment suggestion of the spiral pipe heat exchanger is generated. The application can prolong the service life of equipment and improve production efficiency and safety.

Valves that include a hollow valve stem with an internal heat transfer fluid that naturally circulates within the stem acts as a heat pipe to the valve bonnet to prevent fluid within the valve from freezing. This approach protects the valve body, stem, bonnet and sealing material such as valve packing or a bellows from being damaged by frozen fluid at any location within the valve.

The application provides a kind of energy storage battery thermal management unit, thermal management system and thermal management method, including the battery cell group consisting of multiple battery cells, internal heat transfer module, semiconductor thermoelectric sheet, external heat dissipation module, electronic control module and box, battery cell group, internal heat transfer module and electronic control module are all arranged in the box, external heat dissipation module is arranged outside the box, internal heat transfer module is in contact with battery cell, one side of semiconductor thermoelectric sheet is connected with internal heat transfer module, the other side is connected with external heat dissipation module.The beneficial effects of the present application are that a thermal management unit with reasonable structure and high stability is provided, which uses the combination of semiconductor thermoelectric sheet and thermal superconducting technology to exchange heat with battery cells, and then uses the external heat dissipation module to exchange heat with the semiconductor thermoelectric sheet, isolates the external heat dissipation module from the battery cells, ensures the heat exchange effect of the system, reduces the influence of the external heat dissipation module on the battery cells, and guarantees the safety and reliability of the system.

The invention discloses a device and a method for measuring internal heat transfer of an ablative material. The device comprises a flexible metal foil (1), a plurality of temperature sensors (2) arranged at intervals along the width direction of the metal foil (1), and an insulating layer (3) covering the metal foil (1) and the temperature sensors (2). The metal foil (1) is curled into a cylinder, a sensing point of the sensor (2) is located outside the cylinder, the cylinder is filled with the ablative material (4), and the whole body is embedded into a measuring hole of the ablative material body (5). The method comprises the steps of forming the measuring hole, arranging the sensor on the metal foil, performing insulation treatment, performing curl welding, filling the ablative material, performing embedded installation and the like. According to the invention, in-situ accurate measurement of longitudinal temperature distribution of the ablative layer is realized with minimum interference, and the problem of measurement of internal heat transfer of the ablative material is solved.

The present invention discloses an oral cooling device (1000) for a user to control local cooling within the oral cavity. The oral cooling device comprises a distal region (100) placed in the oral cavity, a heat-transfer permeable outer layer (110), a proximal region (200) grasped by the user, a heat-transfer limiting outer layer (220), an internal heat transfer element (300), and an internal heat buffer (250). During use, heat is transferred from the oral cavity to the internal heat buffer (250) via the heat-collecting region (310) and heat-dissipating region (311) of the internal heat transfer element (300).

This invention relates to the field of phase change energy storage materials technology, specifically to a high-energy-storage composite phase change material for low-temperature applications and its preparation method. Addressing the problems of high supercooling, slow crystallization rate, and poor heat transfer performance in existing low-temperature phase change materials, this invention uses a glycylglycine aqueous system as the high-energy-storage matrix, introduces organic sugar alcohols as phase change temperature regulators, and constructs heterogeneous nucleation sites by adding inorganic nanoparticles. These nanoparticles significantly reduce the nucleation energy barrier of the system, effectively suppressing supercooling and improving the internal heat transfer efficiency of the material. The material obtained by this invention crystallizes rapidly and releases heat efficiently, making it widely applicable in cold chain logistics and food preservation.

The application relates to the technical field of wind power generation, in particular to a wind turbine element temperature adjusting method, device, equipment and program product. The method comprises the following steps: obtaining an expected temperature change curve of a target element in a wind turbine; generating a control signal based on the expected temperature change curve and a preset control law, wherein the control law is established according to a temperature response model of the target element and a sliding mode control strategy, the temperature response model comprises a time delay variable reflecting internal heat transfer delay of the target element, and the sliding mode control strategy constrains the boundary of temperature adjustment error through a preset performance function; and sending the control signal to a temperature control element to adjust the temperature of the target element. The technical scheme provided by the application can realize accurate adjustment of the temperature of the wind turbine element.

The present application relates to the field of food production equipment, and more particularly to a stirring and pulping device for jam processing and a stirring method thereof, comprising a pulping cylinder and a shaft pipe, the shaft pipe is built in the pulping cylinder, end covers are fixed at both ends of the pulping cylinder to support the rotation of the shaft pipe, a crushing knife is arranged in the middle section of the shaft pipe, an air inlet assembly is connected to the opening at the outer end of the shaft pipe, a driving element is fixed to the outer side of the end cover to support the rotation of the crushing knife, and the shaft pipe is a hollow circular pipe structure. The mounting cover, side pipe and knife body of the crushing knife form a gas passage, the material inside is directly sprayed through the gas holes densely arranged on the knife body, the heat transfer path is shorter, the jam can be directly contacted and the processing heat can be quickly taken away, a supercharged fan structure can be formed without additional driving elements, the outside air is purified through a filter screen and then sent into the hollow shaft pipe, the pulping and cooling on the knife body are integrally arranged, the energy consumption is reduced and the equipment structure is simplified.

1. Name of the product in this design: Chair (Internal Heat Transmission Energy). 2. Purpose of this design: A chair for health and wellness purposes. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to compressor waste heat recovery technical field discloses a kind of waste heat recovery devices for compressor, including base, the upper surface of the base is fixedly connected with compressor body, the inside of the compressor body is provided with exhaust pipe, the upper surface of the base is fixedly connected with heat preservation box, the upper surface of the heat preservation box is provided with recovery tank, the inside of the recovery tank is provided with air inlet pipe and exhaust cover, the inside of the recovery tank is provided with feed pipe and discharge pipe, the inside of the recovery tank is fixedly connected with gas delivery pipe, the inside of the gas delivery pipe is provided with spiral pipe, the inside of the recovery tank can be detachably mounted fan.The utility model is in, by the cooperation between recovery tank, air inlet pipe, exhaust cover, feed pipe, discharge pipe, gas delivery pipe, spiral pipe, heat preservation box and control component, the flow of internal heat transfer medium is adjusted following the heat conversion situation inside recovery tank, simultaneously using fan, gas is guided.

The utility model provides an air-cooling heat exchanger of a cooling tower, and relates to the technical field of heat exchange equipment. Comprising a heat exchanger core body which comprises an upper tube plate, a lower tube plate and a plurality of flying wing type finned tubes; the flying wing type finned tube is a flat tube, and flying wing type fins are arranged on two opposite wide surfaces of the flying wing type finned tube; the multiple flying wing type finned tubes are arranged between the upper tube plate and the lower tube plate in parallel. And an upper pipe cap and a lower pipe cap. According to the heat exchanger core body, the flat-tube-shaped flying wing type finned tubes are adopted as the heat exchange tubes and are used for cooling the triangular units, so that cold air can continuously flow towards the axis of a tower after being input into the heat exchanger core body of the heat exchanger, baffling is reduced, the operation wind resistance of the cold air is effectively reduced, and the heat exchange efficiency is improved. The overall cold input is increased, and the heat exchange efficiency is improved; the fluid pipelines and the flying wing type fins of the flying wing type finned tube are integrally formed, the internal heat transfer capacity is maximized, meanwhile, the overall structural strength of the flying wing type finned tube is enhanced, and the heat exchange efficiency is further improved.

The long-sleeve T-shirt with the self-heating structure comprises a plurality of clothes cloth pieces which are connected in a sewing mode and form a main body frame of the clothes, and each cloth piece of the clothes internally comprises an inner surface layer, a heating fiber layer, a heat storage fiber layer, a carbon felt grinding layer and an outer surface layer. The multiple layers of materials form a cloth structure in a composite mode, heat preservation and temperature control are carried out in a heat transfer mode, and in the actual application process, the inner surface layer, the heating fiber layer, the heat storage fiber layer, the carbon felt grinding layer and the outer surface layer which are sequentially arranged jointly form a temperature control system with the internal heat transfer function, the moderate heat heating and heat preservation function and the external heat insulation function. Compared with the prior art, the long-sleeve T-shirt with the self-heating structure has the advantages that the long-sleeve T-shirt fits the human body, the warm keeping effect is better, the structure of the long-sleeve T-shirt with the self-heating structure can be effectively optimized, and human health is guaranteed.

The utility model discloses a heat insulation device for reducing heat transfer loss in an absorption heat exchanger, which comprises the absorption heat exchanger, heat insulation layers are arranged between a generator and a condenser of the absorption heat exchanger and between the generator and an evaporator, the height of each heat insulation layer is 30mm, and the surface of a steel plate in each heat insulation layer needs to be aluminized. The aluminized film formed on the surface of the steel plate can reduce the radiation heat transfer amount. A vacuum diaphragm valve is mounted on each heat insulation layer, and after the absorption heat exchanger is produced and manufactured and before the absorption heat exchanger runs, air in the heat insulation layers is pumped out through a vacuum pump, so that a vacuum heat insulation layer is formed. The vacuum heat insulation layer can prevent a high-temperature generator in the absorption type heat exchanger from transferring heat to a low-temperature condenser and a low-temperature evaporator.

The invention discloses a liquid storage and bypass air conditioning system and a control method. The air conditioning system comprises a compressor, a four-way reversing valve, an outdoor heat exchanger, an electronic expansion valve, a gas-liquid separator of an integrated high-pressure liquid storage device, an indoor heat exchanger and nine electromagnetic valves. When an air conditioning system operates in different modes or under different working conditions, the optimal refrigerant charge quantity needed by the system is different, and under the extreme working condition, the system performance is severely attenuated. According to the liquid storage and bypass air conditioning system and the control method, the refrigerant circulation amount of the system in operation under different working conditions of refrigeration and heating dual modes can be autonomously regulated and controlled, it is guaranteed that the circulation amount of each mode under each working condition is better, the area of a heat transfer deterioration area in an evaporator can be reduced through the gas bypass technology, and the heat transfer efficiency is improved. The heat exchange performance of the evaporator side is improved, the performance of the air conditioning system is not attenuated and is improved under the variable mode and variable working condition comprehensively, and particularly, the improvement is more obvious under the high-temperature refrigeration working condition.

The present invention discloses an oral cooling device (1000) for user controlled local cooling of the oral cavity. It includes a distal region (100), adapted for placement within the oral cavity and carrying a heat transfer permeable outer layer (110), a proximal region (200), adapted for being gripped by the user and carrying a heat transfer restrictive outer layer (220), an internal heat transfer element (300) and an internal heat buffer (250). Upon use, heat is transferred from the oral cavity to the internal heat buffer (250) via a heat collecting region (310) and a heat emitting region (311) of the internal heat transfer element (300). Respectfully submitted,

The invention relates to a measuring apparatus comprising a probe (12) having a part (12a) that can be immersed in a reaction medium, which part is equipped with a member (15) for heating a first area (15a) of the probe (12) in which a first temperature-measuring member (16) is placed. A second temperature-measuring member (17) is placed in a second area (15b) of the probe (12) at a distance (D1) from the first area (15a). The first measuring member (16) and the second measuring member (17) deliver the value of a temperature difference between the first area (15a) and the second area (15b) of the probe (2) to a unit (13) for identifying the value of an internal heat-transfer coefficient of the reaction medium based on the temperature difference.

The invention discloses a method and a system for measuring the internal heat transfer coefficient of a turbine blade based on a phosphorescence temperature measurement technology. The method comprises the following steps: S1, preparing a modeled turbine blade internal flow channel geometric structure test piece; s2, placing the test piece in an airflow channel simulating the working environment of the turbine, applying a stable thermal boundary condition to the test piece through a heating device, and recording the temperature of a mainstream fluid at the same time; s3, performing global excitation on the phosphorescence coating on the inner wall of the test piece after the thermal boundary condition is stabilized by using an ultraviolet excitation light source, collecting a phosphorescence attenuation signal, and obtaining a three-dimensional temperature field of the inner wall of the test piece based on the phosphorescence attenuation signal; s4, establishing a three-dimensional heat conduction model based on the three-dimensional temperature field, and solving local heat flux density based on the three-dimensional heat conduction model; and S5, based on the Newton's law of cooling, the heat exchange coefficient of the inner wall of the test piece is calculated in combination with the mainstream fluid temperature and the local heat flow density.

The invention relates to a thermal control device and method capable of adjusting temperature and power, and belongs to the field of thermal control of low-orbit remote sensing satellites. According to the invention, a double-temperature-zone phase-change heat transfer technology and electric heating active temperature control are adopted to realize the adjustment of the temperature and the compensation heating power of periodic working high-power equipment; when the equipment intensively works, the high-melting-point phase change material is used for absorbing generated waste heat, temperature fluctuation is restrained, and the area of the heat radiator is reduced; when the equipment does not work for a long time and before entering an earth shadow area, redundant electric energy in a satellite illumination area is stored in a low-melting-point phase change material through an electric heating active temperature control system, heat is released in the earth shadow area, it is ensured that the equipment does not need heating compensation in the earth shadow area, and the discharge depth of a lithium battery is reduced. The temperature equalizing device is adopted to achieve efficient temperature equalizing and heat diffusion, the problem that the heat absorption rate of the phase change material is low due to low heat conductivity of the phase change material is solved, and the system efficiency is guaranteed by establishing a phase change material filling amount and internal heat transfer temperature difference matching design criterion.

The invention relates to a high voltage power conductor assembly (1) comprising a tubular electrical conductor (2) and an outer insulation (3) surrounding the tubular electrical conductor (2). The tubular electrical conductor (2) has an inner surface (21) with protrusions (22) for increasing heat transfer. The interior surface (21) defines a channel (24) configured for receiving a coolant (4) from a cooling system designed, in use, to discharge heat from the electrical conductor (2) to the coolant (4).

The utility model provides a kind of elastic fastening structure for improving the reliability of heat transfer structural member, belong to new energy automobile technical field. Including being set in the liquid cooling water tank of liquid cooling charging gun, the liquid cooling water tank is between two power terminals in liquid cooling charging gun, both sides of the liquid cooling water tank and two the power terminal between it is provided with heat-conducting insulating component, and the two fasteners of liquid cooling charging gun are symmetrically provided with two fasteners, the end portion of the fastener is matched with elastic baffle and elastic pad, by the elastic deformation of the elastic pad, the power terminal, the heat-conducting insulating component and the liquid cooling water tank are applied elastic compression force. The utility model, not only effectively improve the fit reliability of heat transfer structural member under long-term use condition, ensure liquid cooling heat dissipation effect, and further guarantee the pressure balance and heat dissipation uniformity between internal heat transfer structural member by symmetric elastic fastening structure, overall use effect is good.

The invention discloses a biomass supercritical water gasification hydrogen production system and method based on heat energy self-circulation and heat stirring intensification, and belongs to the technical field of hydrogen production energy. The system comprises a supercritical water gasification reaction device, the top of the supercritical water gasification reaction device is connected with a storage tank, the bottom of the supercritical water gasification reaction device is connected with a water tank and a slag collecting device, and a stirring device and a palladium membrane are arranged in the supercritical water gasification reaction device; a solar heater is arranged outside; a heat conversion device is arranged on the supercritical water gasification reaction device; a gas outlet of the supercritical water gasification reaction device is connected with a decompression separator, and a gas outlet of the decompression separator is connected with a carbon monoxide combustion device. The supercritical water gasification system is used for solving the technical problems that a traditional supercritical water gasification system is low in internal heat transfer efficiency and insufficient in material mixing.

This utility model relates to the field of heat exchanger technology and discloses a furnace exhaust gas waste heat recovery heat exchanger, including a shell, a heat transfer tube bundle disposed inside the shell, a tube box disposed on the side wall of the shell, a base plate disposed at the bottom of the shell, a quick-release assembly disposed on the side wall of the shell, and a lifting assembly disposed at the bottom of the shell. The quick-release assembly includes a limiting block and a sliding plate. The bottom of the limiting block is fixedly connected to the side wall of the shell, and the bottom of the sliding plate is fixedly connected to the side wall of the tube box. The side wall of the sliding plate is slidably connected to the inside of the limiting block. This utility model, while ensuring sealing, allows for quick disassembly of the tube box for maintenance and cleaning of the internal heat transfer tube bundle, solving the problem of severe pollution of the heat transfer tubes by furnace exhaust gas and the inconvenience of cleaning each time.

This application relates to a method, apparatus, computer equipment, storage medium, and computer program product for analyzing the heat and mass transfer of corrosion products in nuclear reactors. It includes: obtaining the average thermal conductivity of the corrosion products and determining the temperature distribution of the corrosion products in coolant saturation, nucleation boiling, and evaporation states based on the average thermal conductivity; determining the coolant flow rate distribution in the corrosion products based on the pressure distribution; obtaining the concentration relationship between the boric acid concentration and the concentrations of other soluble substances in the coolant, and determining the concentration distribution of other soluble substances based on the concentration relationship and the boric acid concentration; analyzing the internal heat and mass transfer of the corrosion products based on the temperature distribution, flow rate distribution, and concentration distribution of soluble substances to obtain the concentration of boron enriched within the corrosion products, and obtaining the total boron deposition based on the enriched concentration. This method can accurately analyze the heat and mass transfer of corrosion products in nuclear reactors.

A measuring device comprises a probe (12) with an immersible portion (12a) in a reaction medium equipped with a heating element (15) for a first zone (15a) of the probe (12), in which a first temperature measuring element (16) is placed. A second temperature measuring element (17) is placed in a second zone (15b) of the probe (12) at a distance (D1) from the first zone (15a). The first measuring element (16) and the second measuring element (17) provide a temperature difference value between said first zone (15a) and said second zone (15b) of the probe (12), to within one identification unit (13), from said temperature difference, a value of the internal heat transfer coefficient of the reaction medium.

The utility model discloses a bench experiment device for testing the internal heat transfer characteristic of a brake disc, which belongs to the technical field of brake disc experiments and comprises a test bench, the top of the test bench is fixedly connected with a support frame, the middle of the support frame is fixedly connected with two bearing seats, and the middle bearings of the two bearing seats are connected with an experiment shaft. The test bench comprises a support frame, a test shaft is arranged on the support frame, brake disc bodies are arranged at the two ends of the test shaft, a brake mechanism is arranged at the top of the support frame, and a temperature measuring mechanism is arranged at the top of the test bench, the brake mechanism and the temperature measuring mechanism are arranged, and real brake conditions including brake pressure, brake speed, brake time and the like are simulated. The heat transfer behavior of the brake disc body under the actual working condition can be reflected more accurately, meanwhile, a temperature measuring sensor in the temperature measuring mechanism can monitor the temperature change of the surface of the brake disc body in real time, the experiment precision and reliability are improved, and temperature data of different positions in the brake disc body can be obtained.