16 results about "Extreme heat" patented technology

The application provides a multifunctional continuous flow heterogeneous or homogeneous catalytic series reaction device, which comprises a raw material gas supply pipeline, a first gas purification device, a first constant-temperature bubbling gas redispersion device, a second constant-temperature bubbling gas redispersion device, a light-concentrating photothermal reactor, a second gas purification device, a reaction gas velocity cooling device, a gas-liquid separation device and a gas collection device which are sequentially connected in pipeline along the fluid flow direction, and a fluid directional control system. Through the composite heat-resistant cavity structure and the light-heat-flow collaborative design, the device realizes the tolerance to extreme heat environment and the elimination of local hot spots, and the service life is improved by more than 3 times; through the three-stage purification process and the multi-parameter independent control system (temperature / pressure / flow rate / light intensity), the stability of the oxygen-sensitive reaction is ensured, and the reaction selectivity is more than 95%. The device solves the engineering scale-up problem in the light-concentrating catalysis field, the mass transfer efficiency is improved by 5-8 times compared with the batch system, and provides an expandable technical platform for the continuous production of solar fuels.

The hot fluorine defrosting device specifically comprises a box body, a fluorine storage tank, a compressor, a cold exhaust pipe, a measuring assembly, a speed regulation assembly and a temperature control assembly, the measuring assembly is used for detecting the deformation amplitude of the cold exhaust pipe, and when the measuring assembly detects that the cold exhaust pipe is in a hot pole deformation value, the temperature control assembly reduces the defrosting temperature of the cold exhaust pipe; the conveying speed of fluorine is reduced by the speed regulating assembly; when the measuring assembly detects that the cold discharge pipe is at the cold pole deformation value, the temperature control assembly increases the refrigeration temperature of the cold discharge pipe, and the speed adjusting assembly increases the conveying speed of fluorine. The measuring assembly monitors the deformation amplitude of the cold calandria, the speed adjusting assembly and the temperature control assembly carry out corresponding operation, the optimal defrosting effect of the cold calandria and the optimal refrigeration effect of the air cooler are guaranteed, meanwhile, deformation of the cold calandria is reduced, the aging and damage processes of the cold calandria are delayed, the maintenance cost of the cold calandria is reduced, and the working efficiency is improved. And the maintenance frequency of the cold calandria is reduced.

The invention discloses an intelligent self-adaptive multi-layer heat insulation assembly applied to spacecraft heat control and based on electrostatic suspension and graphene aerogel. The intelligent self-adaptive multi-layer heat insulation assembly comprises an intelligent color-changing outer protection layer, a stacked reflection layer, an electrostatic suspension control system and other core structures. Interlayer non-contact suspension of the assembly is realized through electrostatic repulsion, and solid contact heat conduction is eliminated; the graphene aerogel supporting frame is used as a standby support and has ultralow thermal conductivity; the intelligent color changing layer can dynamically switch heat preservation / heat dissipation states, the fiber grating sensor monitors temperature change and strain in real time, and the sensing and control system regulates and controls all the systems in a coordinated mode according to the temperature change and the strain. Compared with a traditional heat insulation assembly, the heat insulation performance of the heat insulation assembly is improved by nearly 90%, the heat insulation assembly is still far superior to a traditional product during electrostatic failure, the heat insulation assembly further has the active heat management capacity and can adapt to the deep space extreme heat environment, efficient intelligent heat management of spacecrafts is achieved, and related assemblies can also be applied to various spacecrafts.

This application discloses a gradually expanding printed circuit board heat exchanger core and heat exchanger adapted to two-phase flow. It includes a cover plate, a bottom plate, a cold side plate layer, and a hot side plate layer. The cold side gradually expanding channel adopts a flow channel structure with progressively increasing width. The cross-sectional area of ​​the flow channel dynamically adapts to the volume change of the gas-liquid phase transition, reducing pressure drop fluctuations and bubble aggregation caused by gas phase expansion. The parallel layout of the diversion channel and the gradually expanding channel, combined with the porous structure of the inner wall, optimizes the uniformity of medium distribution and significantly improves flow stability through graded distribution and enhanced surface wettability. The hot side heat exchange channel incorporates turbulence ribs, which enhance convective heat transfer and phase change heat transfer by disrupting the thermal boundary layer and inducing turbulence. It supports heterogeneous working fluid combinations such as supercritical CO2-water and liquid hydrogen-liquid oxygen. This heat exchanger can improve heat exchange efficiency while reducing pressure drop, balancing compactness, reliability, and wide operating condition adaptability. It achieves optimized two-phase flow and efficient heat exchange, meeting the extreme heat exchange requirements of aerospace, new energy, and other fields.

The invention discloses a distributed power supply planning method and device for a power distribution network, terminal equipment and a storage medium, and the method comprises the steps: building a first target function with the minimization of the regional overheating risks of all power distribution regions as a target through considering the regional overheating risks caused by the power failure of the power distribution regions; and solving the first objective function and the second objective function under a first constraint condition that the regional overheating risk of each power distribution region cannot exceed a preset risk threshold value and a second constraint condition used for constraining normal operation of the power distribution network by using the first objective function and the second objective function with the minimization of the distributed power supply planning cost as a target. According to the generated planning scheme, the power utilization experience of users in each power distribution area in extreme hot wave weather is considered, and the installation cost and the power failure cost of the distributed power supply and the operation stability of the power distribution network are also considered.

The present invention provides a temperature control tester capable of withstanding the extreme mechanical and thermal environment of aerospace and a preparation method thereof, wherein the top PCB board and the bottom PCB board are fixedly connected by anti-loosening bolts and anti-loosening nuts; a flexible temperature control unit is fixedly installed between the top PCB board and the bottom PCB board, and the flexible temperature control unit is also electrically connected to the top PCB board and the bottom PCB board respectively; the flexible temperature control unit includes a flexible temperature sensor, a flexible substrate, and a flexible heating sheet from top to bottom; and a nylon isolation column is provided on the anti-loosening bolt. The present invention realizes the high reliability of the flexible temperature control unit in the extreme mechanical and thermal environment of aerospace by combining technologies such as oxygen plasma bonding, conductive silver glue electrical connection, and a pre-tightened sandwich structure of PCB-flexible temperature control unit-PCB, thereby avoiding many problems of the above-mentioned previous technologies.

To provide a method, device, program and recording medium for generating estimated hot and extremely hot period maps by accurately determining estimated hot and extremely hot periods with high resolution for each region, reflecting effects of recent global warming.SOLUTION: An estimate hot and extremely hot period output system 100 disclosed herein is configured to compute estimated daily smoothed normal values of daily mean temperatures during the last 10 years in a region X from a data set comprising meteorological data including meteorological observation dates and temperatures on the observation dates at each of multiple weather observation points A as well as topological factors of each of the multiple weather observation points A and the region X.SELECTED DRAWING: Figure 2

The present application provides a high geothermal tunnel environment simulation test device for thermal comfort evaluation, which relates to the field of high geothermal tunnel environment simulation test. A high geothermal tunnel environment simulation test device for thermal comfort evaluation, comprising: a test bench, a tunnel model is fixedly connected to the top of the test bench, the tunnel model adopts a lining structure design, and a fixed frame is fixedly connected to the center of the bottom of the test bench, and gas cylinders are embedded on both the front and rear sides of the fixed frame; a supply component used in conjunction with the gas cylinder is arranged in the fixed frame, and a temperature control field component is arranged on the supply component. The high geothermal tunnel environment simulation test device for thermal comfort evaluation takes the temperature control field, wind field and stress field as the starting point, and combines the extreme environments of extreme heat and extreme cold to achieve a full simulation test effect on the environment of tunnel construction under high geothermal conditions, and obtains comprehensive environmental factor supporting data, which is beneficial to the subsequent thermal comfort evaluation of high geothermal tunnels.

The invention relates to the technical field of electric power system safety analysis, in particular to a risk assessment method, device and equipment for an electric power system containing a controllable phase shifter in extreme weather and a medium. The method comprises the following steps: establishing a fault probability model of an overhead line and a phase shifter, considering direct and indirect fault probabilities of the phase shifter caused by ponding and equipment aging under a rainstorm condition, constructing a comprehensive fault probability model, and generating a power grid fault scene based on Latin hypercube sampling; line overload, node voltage out-of-limit and load loss risk indexes are obtained by combining load flow calculation, subjective and objective weights are fused by adopting a game theory comprehensive weighting method, a multi-dimensional comprehensive risk assessment index is formed, the power grid operation risk in extreme weather can be quantified, data support is provided for power grid dispatching decisions containing controllable phase shifters, and the method is suitable for large-scale popularization and application. And the robustness and the power supply reliability of the system in a disaster scene are improved.

The invention belongs to the technical field of heat supply, and provides a heat supply system for managing heat energy output, which comprises a gas-fired boiler, a heat exchanger, a heat reservoir, a heat exchange station and an intelligent control part which are sequentially communicated, the heat exchange station is communicated with each user terminal, each user terminal and the heat exchange station are respectively connected with the intelligent control part, and the intelligent control part is connected with the intelligent control part. The intelligent control part is connected with the gas-fired boiler, the heat storage device comprises a plurality of heat storage areas, volume sensors are arranged in the heat storage areas and connected with the intelligent control part, and the heat storage areas adjacent to the heat exchanger are communicated or closed with the input ends of the other heat storage areas respectively. And the heat storage area adjacent to the heat exchange station is communicated with or closed from the output ends of the other heat storage areas. Therefore, energy output is accurately controlled, energy consumption can be accurately matched according to the requirements of a user terminal, more energy is saved, combustible gas heat energy is configured in a partitioned mode, sufficient heat energy storage is achieved even when the extreme heat use requirement is met, and accurate energy storage is achieved.

A shielding device for forward facing and / or windshield mounted / located sensors on an automobile protects sensors in close proximity to the windshield from temperature extremes associated with sunlight and extreme cold or wind. Modern automobiles tend to locate forward-focused collision avoidance sensors (sensors) around the perimeter of the windshield, typically at a central, uppermost portion. The windshield is subject to a substantial solar load, often emphasized by the angle of the windshield in direct sunlight. A reflective, insulating substrate disposed over the windshield mitigates extreme heat that can damage sensors in thermal communication with the windshield surface. The substate is affixed via the door seam, magnetic attachment, or engagement with the side mirrors or wipers.

The invention relates to the technical field of vehicle heat management, and discloses a commercial vehicle heat management system suitable for an extreme environment and a control method, and the system comprises an environment state recognition module which is used for obtaining the environment temperature, the relative humidity, the altitude and the atmospheric pressure, and determining the temperature grade, the high-humidity environment state and the plateau environment state; the extremely cold environment control module is used for determining preheating power parameters according to the temperature grade when the temperature grade belongs to an extremely cold environment; an extremely hot environment control module; a plateau environment compensation control module; a high-humidity environment compensation control module; a degradation protection module; and an actuator control module. Typical extreme environments such as extremely cold environments, extremely hot environments, high humidity environments and plateau environments are distinguished by simultaneously utilizing various environment information such as environment temperature, relative humidity, altitude and atmospheric pressure, so that a heat management system has a clear environment judgment basis in a complex environment.

The application relates to the technical field of power system safety evaluation, and discloses a demand regulation method and system for a power system under extreme heat waves, which comprises the following steps: obtaining multi-dimensional operation comprehensive data of a power system under an extreme heat wave scenario; constructing a robustness evaluation index system of the power system, so as to quantitatively obtain index values respectively representing load guarantee capability, new energy consumption capability, market stability capability and low-carbon operation capability of the power system based on the multi-dimensional operation comprehensive data; establishing an evaluation hierarchy according to an analytic hierarchy process, and determining the weights of the index values through the evaluation hierarchy; determining a robustness evaluation grade of the power system by using the index values and the corresponding weights based on a fuzzy comprehensive evaluation method, and performing demand response regulation on the power system according to the robustness evaluation grade; and scientific and comprehensive evaluation of the supply-demand robustness of the power system under the extreme heat wave scenario is realized.

The embodiment of the invention provides a vehicle thermal management system, a control method thereof and a vehicle. Relates to the technical field of vehicles. A vehicle thermal management system includes an air source heat pump, a first heat exchanger, a second heat exchanger, a battery, and a motor. A refrigerant inlet of the first heat exchanger is connected with a refrigerant outlet of the air source heat pump and used for exchanging heat with a compartment of the vehicle. And a refrigerant outlet of the second heat exchanger is connected with a refrigerant inlet of the air source heat pump. The battery is connected with a refrigerant outlet of the air source heat pump and a refrigerant inlet of the second heat exchanger. And the motor selectively forms a heat exchange loop with the second heat exchanger. According to the vehicle heat management system provided by the embodiment of the invention, different heat exchange loops can be formed. The vehicle thermal management system can efficiently operate under different environmental conditions (such as extremely cold, extremely hot or normal conditions), through multi-loop and multi-function integration, the vehicle thermal management system can keep high reliability under different working conditions, and the performance advantage of a vehicle is improved.

The application provides a multi-microgrid electricity-carbon collaborative scheduling method and system, which comprises the following steps: establishing a distributed power generation and energy storage mathematical model according to a multi-microgrid system, and defining parameters according to the distributed power generation and energy storage mathematical model; constructing an endogenous thermal feedback model according to a thermal feedback coefficient and a load thermal sensitivity coefficient; designing an intraday rolling optimization strategy according to the endogenous thermal feedback model; and generating a comprehensive operation cost function and a power balance constraint according to the distributed power generation and energy storage mathematical model, the endogenous thermal feedback model and the intraday rolling optimization strategy, so as to perform multi-microgrid electricity-carbon collaborative scheduling. The endogenous thermal feedback model is constructed, the two-way interaction between the multi-microgrid system and the ambient temperature is quantified, the intraday rolling optimization strategy is integrated, the operation cost, the carbon emission and the power supply guarantee are optimized under complex constraints, the source-load fluctuation under the extreme heat wave environment is effectively responded, and the carbon emission reduction capacity and the operation economy of the multi-microgrid system are improved.

The invention relates to the technical field of temperature and humidity control, in particular to an intelligent temperature and humidity regulation and control method and system for aviation food cold chain transportation. According to the method, firstly, data cleaning is completed through space-time dimension verification of multi-node data, and high-confidence-coefficient feature parameters are generated; then synchronizing a flight profile and a destination weather forecast, and extracting a multi-dimensional environment factor containing thermal radiation intensity; on the basis, a heat exchange prediction model coupled with air pressure correction is constructed, and a full-voyage heat profit and loss curve is deduced; the electric quantity of the storage battery is further combined, and the pre-cooling triggering moment and the target deviation temperature are reversely optimized with food safety as a constraint; and finally, the frequency conversion compressor and the fan are cooperatively executed, and dynamic deviation correction is conducted in the falling stage according to the temperature change rate deviation. The technical problem that traditional aviation cold chain equipment is poor in resistance to extreme thermal shock on the ground is solved, accurate space-time transfer of cold energy from the high altitude to the ground is achieved, and the energy utilization efficiency is remarkably improved while food safety is guaranteed.