19 results about "Thermal Problem" patented technology

The invention discloses a rapid design method and system for a turbine blade, electronic equipment and a storage medium, and the rapid design method comprises the steps: firstly, obtaining boundary conditions of a gas side and a cold air side of the turbine blade in an actual working environment based on flow heat exchange test data, and then constructing a heat exchange boundary model based on the boundary conditions; according to the method, temperature field calculation becomes a pure solid heat conduction problem, and only depends on known boundary conditions and material attributes, so that a heat exchange boundary model can be directly applied to a blade three-dimensional model for transient temperature field calculation, and CFD simulation calculation needing iterative solution is replaced; by means of the method, the most time-consuming flow field solving and flow thermal coupling iteration link in the whole analysis process is thoroughly eliminated, the calculation efficiency is remarkably improved while the calculation precision is guaranteed, a thermal-force coupling chain is cut off through decoupling calculation of the transient temperature field and the transient stress field, and the calculation efficiency is further improved.

The application relates to the technical field of temporary housing, in particular to an energy-saving building thermal insulation wall body of a concrete structure and a construction method thereof, a first shell is inlaid on one side of a concrete structure layer close to a thermal insulation layer, a first elastic bag is fixed on the inner wall of the first shell, and a moving plate is fixed on one side of the first elastic bag facing the thermal insulation layer; a second shell is inlaid on one side of the concrete structure layer close to a sealing plate, and a second elastic bag is arranged in the second shell. The position of the moving plate is controlled, the extension and retraction state of the first elastic bag is adjusted, in a high-temperature scene in summer, the moving plate can be flexibly controlled according to real-time requirements, the first elastic bag can be kept in a compressed state, and heat exchange with the external high-temperature environment is avoided. Compared with the prior art, the scheme can actively avoid the risk of heat accumulation, effectively relieve the stuffy problem in the house, and greatly improve the comfort of the temporary housing.

The invention discloses a high-order model control method based on a linearization model and GA-ADRC, and relates to the field of heat exchanger control simulation, and the method comprises the steps: constructing a single-shell-pass single-tube-pass heat exchanger model which comprises a shell and a heat exchange space, the heat exchange space is divided into a shell pass region and a tube pass region, and the shell pass region is internally provided with a plurality of baffle plates; carrying out heat balance analysis to obtain a dynamic equation of each heat exchange link of the heat exchanger, carrying out discretization processing, and carrying out linearization processing on the mass flow rate and the temperature of the shell pass hot fluid to realize decoupling; and an ESO state observer is arranged to estimate the state variable of the heat exchanger in real time, and the single-shell-side and single-tube-side heat exchanger model is controlled through a GA-ADRC-based nonlinear model control method. According to the method, the complex heat transfer problem can be linearized, a GA-ADRC controller independent of an accurate model is designed, the actual nonlinear model can be successfully adapted, the adjustment time is shortened, and the control precision and the anti-interference capability are effectively improved.

The application discloses a computer data security monitoring system and method based on a blockchain and big data, and belongs to the technical field of computer data security monitoring. The system comprises a blockchain traceability module, a temperature detection and analysis module, a temperature comparison and judgment module, a temperature early warning module and a pushing module; the output end of the blockchain traceability module is connected with the input end of the temperature detection module; the output end of the temperature detection and analysis module is connected with the input end of the temperature comparison and judgment module; the output end of the temperature comparison and judgment module is connected with the input end of the temperature early warning module; the output end of the temperature early warning module is connected with the input end of the pushing module; and the output end of the pushing module is connected with the input end of a management port. The application is used for detecting the heating problem of an electric vehicle charger, can prompt the temperature change in the charging process, makes an early warning, prevents a fire from occurring, and protects the safety of people's lives and property.

This invention discloses a green and environmentally friendly method for improving the performance of substation facades, belonging to the field of facade performance optimization technology. The method includes: scanning the substation facade to obtain heat conduction-sensitive areas, constructing a facade thermal field and identifying thermal field distortion; constructing a layered thermal conductivity calculation model to calculate the thermal conductivity of facade materials within and outside the thermal field distortion domain in layers, and filtering out distortion deviation domains; extracting thermal bridge-sensitive domains, and determining whether the distortion deviation domains, heat conduction-sensitive areas, and thermal bridge-sensitive domains are spatially coupled by calculating the global Moran's index; if coupled, extracting the intersection as a spatial coupling domain, and formulating different facade performance optimization strategies for different material types within the spatial coupling domain; this invention can locate thermal problem areas, formulate targeted optimization strategies, improve facade thermal insulation performance, reduce energy consumption and carbon emissions, and achieve green and environmentally friendly goals.

The application provides an electro-thermal coupling calculation method considering geometric and material uncertainty, simultaneously considers material and geometric uncertainty, overcomes defects of traditional S-FDTD algorithms limited by time step and grid size, improves stability and simulation efficiency of an iterative method, and has obvious innovation. Moreover, geometric randomness and material randomness are simultaneously introduced into electro-thermal coupling calculation for the first time, so that a multi-physical simulation randomness problem in a multi-scale structure can be solved efficiently, and problems caused by the single randomness of material or geometry in the simulation of electro-thermal problems by traditional S-FDTD are solved.

This invention discloses an intelligent optimization layout and system for thermal resistance paths in multilayer printed circuit boards (PCBs), relating to the field of PCB design optimization technology. It performs a unified mapping of layer stacking parameters, regional thermal conductivity parameters, target heat source parameters, heat inlet parameters, through-connection parameters, inner layer diffusion parameters, and boundary condition parameters to construct a baseline thermal map and target heat source region. A hierarchical directed graph model is then established to identify dominant thermal resistance paths, secondary compensation paths, and obstruction segments. Candidate layout parameters are generated and filtered based on a set of constraint parameters. Furthermore, a single key parameter is selected to perform interval-shrinking refinement iterations, outputting the final layout parameters. This approach can converge board-level thermal problems into local path optimization problems, improving the specificity of thermal resistance identification, the interpretability of layout adjustments, and the stability of results.

This utility model relates to a finned heat dissipation device for spacecraft. The finned heat dissipation device includes a base plate and multiple fins. The base plate is used to connect to the spacecraft's heat source mounting surface. The base plate includes a base plate body, a first mounting surface and a second mounting surface respectively disposed at the top and bottom of the base plate body. The spacecraft's heat source mounting surface is connected to the second mounting surface. The multiple fins are used for heat dissipation and are arranged on the first mounting surface to form a fin array. The fins are three-dimensional fins. This utility model designs a finned heat dissipation device based on the external heat flow distribution of the spacecraft, expanding the heat dissipation area and improving the overall heat dissipation capacity of the spacecraft. It solves the heat dissipation problem of high-heat-consuming spacecraft and addresses the problem that traditional ground-based finned heat dissipation devices are not suitable for vacuum conditions. Under the condition of limited spacecraft heat dissipation surface, it expands the spacecraft's heat dissipation area, increasing the spacecraft's heat dissipation capacity by no less than 35%.

The invention discloses a simulation method and system for wind flow heat transfer of a high-ground-temperature tunnel. The method comprises the following steps: constructing a tunnel geometric model containing different heat insulation structures by utilizing drawing software; importing the tunnel geometric model into numerical simulation software, constructing entity units in the numerical simulation software, and dividing grids; initial conditions and boundary conditions are set, numerical simulation is conducted through a finite difference method, and the air flow heat transfer processes in different construction stages and under the heat insulation structure are simulated; and analyzing a numerical simulation result, generating a distribution cloud picture of a temperature field, comparing heat transfer effects of different construction stages and the heat insulation structure, and determining an optimal design scheme. According to the method, the wind flow heat transfer problem in the high-ground-temperature tunnel is systematically solved through tunnel geometric model building, parameter setting, numerical simulation and result analysis, scientific basis and actual guidance are provided for tunnel engineering by simulating different heat insulation structures and the heat transfer process of the construction stage, and the safety and efficiency of the engineering are improved.

The present invention relates to the technical field of wafer bonding, and discloses a hot plate capable of improving the heating and cooling rates and a wafer bonding method. The hot plate includes a pressing module, a heating module, a first cooling module, and a second cooling module that are sequentially overlapped along the axial direction. By adopting the design of a double cooling module, during the heating stage of the wafer bonding process, it is beneficial to improve the heating rate during the heating stage, effectively avoid the overheating of components such as the first cooling module and its connectors, and there is no need to overly consider the problems of water leakage or air leakage and heat resistance caused by the deformation of the welded joints of the connectors on the first cooling module due to sudden cooling and heating, which helps to reduce the complexity of designing the hot plate and can provide a stable temperature environment for the hot plate, being beneficial to improving the temperature control accuracy; during the cooling stage of the wafer bonding process, the first cooling module and the second cooling module working simultaneously can cooperate with each other to achieve double cooling, thus being beneficial to improving the cooling rate.

The application discloses a rapid design method and system of a turbine blade, an electronic device and a storage medium. The rapid design method is characterized in that: first, boundary conditions of a gas side and a cold gas side of the turbine blade under an actual working environment are respectively obtained based on flow heat exchange test data; then, a heat exchange boundary model is constructed based on the boundary conditions, so that temperature field calculation becomes a pure solid heat conduction problem, and only depends on known boundary conditions and material properties, so that the heat exchange boundary model can be directly applied to a three-dimensional model of the blade for transient temperature field calculation, replacing CFD simulation calculation which needs to be solved iteratively, and completely eliminating the most time-consuming flow field solving and flow-heat coupling iteration links in the whole analysis process, thereby ensuring calculation accuracy and significantly improving calculation efficiency. Moreover, through decoupling calculation of transient temperature field and transient stress field, the heat-force coupling chain is also cut off, further improving the calculation efficiency.

The invention discloses heat exchange equipment for treating an impurity-containing heat medium, and aims to solve the problem of heat exchange of hot sewage as well as the problem that an existing heat exchanger is easy to block and low in heat exchange efficiency. An automatic cleaning system composed of the ball serving water pump, the ball storage device and the like is arranged, cleaning can be started at any time during normal heat exchange of hot sewage, shutdown is not needed, for example, cleaning only needs about one hour after heat exchange by a certain chemical enterprise, production is not stopped, and yield loss is avoided. Meanwhile, the unique hexagonal supporting frame inside the heat exchanger enables a cold medium to flow to the outer wall of the tube bundle in a spiral line mode, the contact time is prolonged, the heat exchange efficiency is greatly improved, and enterprises can save a large amount of heat energy purchasing cost in cases. The heat exchangers can be flexibly connected in series or in parallel, operation is convenient, and the cleaning period is controllable. Through verification of multiple cases, the problem of heat exchange of hot sewage is effectively solved, and economic benefits and environmental protection benefits are achieved.

The invention discloses a ventilation and heat dissipation control method, device and equipment for a low-voltage chamber of a prefabricated substation. The method comprises the following steps: acquiring temperature related parameters of the low-voltage chamber of the prefabricated substation; based on the temperature difference between the indoor environment temperature and the outdoor environment temperature, the indoor and outdoor heat conduction amount is determined by combining the low-voltage chamber heat conduction coefficient; determining the total heat dissipation power according to the heat dissipation power of the heat source element and the indoor and outdoor heat conduction amount; according to the total heat dissipation power, the total air volume requirement is determined by combining the air thermodynamic characteristics; according to the indoor and outdoor pressure difference, the exhaust air rate of a single fan is determined by combining fan characteristics; the number of target fans is determined according to the total air volume requirement and the exhaust air volume of the single fan; according to the number of the target fans, the exhaust air rate of the single fan and the air inlet parameters, the air inlet area is determined; and based on the target fan number and the air inlet area, ventilation and heat dissipation control of the low-voltage chamber of the prefabricated substation is executed. According to the method, the problem of insufficient heat dissipation or excessive heat dissipation can be avoided, and the heat dissipation efficiency and energy efficiency are remarkably improved.

The invention relates to the technical field of direct insertion type storage control, and discloses a direct insertion type storage control method based on state monitoring and active heat dissipation. The method comprises the following steps: acquiring state data of storage equipment, and executing a thermal distribution diagram construction operation according to the data; key state parameter extraction operation is executed based on the constructed thermal distribution diagram, and thermal abrupt change nodes are identified from the key state parameter extraction operation; and finally, dividing a heat dissipation area based on the extracted key state parameters, and fitting the identified thermal abrupt change nodes into an area boundary line. Through the method, the thermal distribution condition of the in-line storage device can be accurately mastered, the heat dissipation area is specifically divided, the area boundary is defined, the active heat dissipation operation can be dynamically adjusted according to the actual thermal state of the device, the heat dissipation requirements of different areas of the device are effectively met, local heat accumulation is avoided, and the service life of the device is prolonged. The stability of the storage equipment in the operation process is guaranteed, the equipment operation abnormity caused by the heating power problem is reduced, and the use requirements of the direct insertion type storage equipment under various working conditions are met.

The invention discloses an environment-friendly substation facade performance improvement method, and relates to the technical field of facade performance optimization, and the method comprises the steps: scanning a substation facade, obtaining a heat conduction sensitive area, constructing a facade heat field, and recognizing the distortion of the heat field; constructing a heat conductivity coefficient hierarchical calculation model, performing hierarchical calculation on heat conductivity coefficients of vertical face materials inside and outside a thermal field distortion domain, and screening out a distortion deviation domain; extracting a heat bridge sensitive region, and judging whether the distortion deviation region, the heat conduction sensitive region and the heat bridge sensitive region are in spatial position coupling or not by calculating a global Moran index; if coupling, extracting an intersection as a space coupling domain, and formulating different facade performance optimization strategies according to different material types in the space coupling domain; according to the method, a thermotechnical problem area can be positioned, a targeted optimization strategy is formulated, the heat insulation performance of the outer facade is improved, energy consumption and carbon emission are reduced, and the green and environment-friendly target is achieved.

The utility model provides a heat exchange system for a phase change material temperature cycle test, which comprises a low-temperature thermostatic bath and a high-temperature thermostatic bath, and further comprises a low-temperature refrigeration system, a high-temperature heat supply system and a heat regulation system, and a transfer mechanism transfers a heat conduction container filled with a phase change material to be immersed in the low-temperature thermostatic bath and the high-temperature thermostatic bath in turn; the low-temperature refrigerating system supplies heat to the low-temperature thermostatic bath, the high-temperature heating system supplies heat to the high-temperature thermostatic bath, the heat adjusting system comprises a temperature adjusting water tank and an electric heater, liquid is arranged in the temperature adjusting water tank, the temperature adjusting water tank is provided with a first heat exchanger and a second heat exchanger, and the low-temperature refrigerating system exchanges heat with the temperature adjusting water tank through the first heat exchanger. The high-temperature heat supply system exchanges heat with the temperature adjusting water tank through the second heat exchanger, and the refrigerating and heating problems of the low-temperature tank and the high-temperature tank in the phase-change material temperature cycle experiment are solved.

The invention provides a bridge main cable equivalent temperature calculation method and system based on a simplified heat conduction model, and the method comprises the steps: inputting the midpoint temperature of each side of a regular polygon cross section of a main cable before cable tightening in a construction period as a simplified boundary condition, directly taking the midpoint temperature as a boundary, simplifying a heat transfer problem, and building a one-dimensional straight rod heat transfer model; a corresponding heat conduction partial differential equation is further established and solved, an analytical calculation formula between the weighted average temperature and the equivalent temperature of the cross section of the main cable is derived, and the function of solving the equivalent temperature of the main cable of the suspension bridge is achieved. According to the method, the boundary temperature, the material parameters and the geometric dimension are incorporated into a unified calculation framework, the calculation complexity is reduced, the calculation efficiency is greatly improved, and the formula is not only suitable for the main cable before cable tightening, but also suitable for the main cable with the circular cross section after cable tightening through finite element analysis verification. And an efficient and reliable technical support is provided for real-time analysis of the temperature effect of the main cable in bridge construction monitoring and a health monitoring system.

The invention discloses high-power data acquisition equipment, and relates to the technical field of photovoltaic power station data acquisition equipment, the high-power data acquisition equipment comprises a data acquisition equipment hardware end, and the data acquisition equipment hardware end comprises a connecting plate. Heat generated by a semiconductor heating end is timely discharged to the vicinity of the equipment, so that the service life of the equipment is prolonged, threaded holes which are distributed at equal intervals are formed in the positioning plate, other positioning screws are matched to be connected with the threaded holes during use, so that the whole equipment and an installation position are reinforced and connected, and the stability of the equipment during use is improved; the equipment software end is arranged to help maintenance personnel to identify potential thermal problems of the equipment, so that bidirectional improvement is performed on hardware and software of the data acquisition equipment, the situation that the equipment operation is affected due to the problems of installation, heat dissipation and the like of the data acquisition hardware equipment is reduced, and the intelligent control level of the whole equipment is improved.

The disclosure provides a cooling solution that evaluates the thermal environment of a computer component based on transient thermal responses of the computer component. The transient thermal responses are generated by measuring the temperature rise of the computer component over a designated amount of time for multiple “good” assemblies and multiple “bad” assemblies to determine a duration and allowable temperature rise needed to set a pass / fail criteria for different failure modes of cooling devices. A cooling device may not be operating as designed due to damage, needed maintenance, missing thermal interface material (TIM), improper installation, etc. From the transient thermal responses, a thermal problem, such as a malfunctioning fan, can be determined and a corrective action can be performed.