5646 results about "Heating efficiency" patented technology

The invention relates to the field of power equipment control data processing, in particular to a boiler combustion optimization control method based on data driving, which comprises the following steps of: acquiring multi-source data such as temperature field distribution, air and smoke pressure, smoke components and coal quality characteristics, and eliminating noise interference by adopting sliding window mean filtering; generating a standardized feature matrix in combination with principal component analysis and a dynamic time warping algorithm; constructing a dynamic coupling model fusing a gradient boosting decision tree and a long short-term memory network, analyzing a nonlinear relationship between pulverized coal particle size distribution and a wind-coal ratio, and predicting combustion efficiency, pollutant concentration and temperature field uniformity; and model parameter self-correction and weight dynamic adjustment are triggered through actual combustion data feedback, and a closed-loop control link is formed. According to the method, accurate modeling of the multi-physical field coupling characteristic of the combustion system is achieved, the time sequence generalization ability under the dynamic working condition is improved, and the purposes of heat efficiency improvement and pollutant emission reduction are effectively balanced.

The invention relates to the technical field of fault diagnosis, in particular to a fault self-diagnosis system and method for a high and low temperature aging test chamber of a storage chip and computer equipment. The temperature control abnormal index is obtained through the data of the temperature control system sensor, early warning can be performed when the temperature control system has abnormal fluctuation, the performance evaluation basis of the air circulation system is provided by the air system efficiency coefficient, the heating efficiency and the refrigeration coefficient are obtained through the data of the heating and refrigerating system sensor, and the performance of the heating and refrigerating system is evaluated. An electrical stability index is obtained through data of a test system sensor, the operation stability of an electrical system is evaluated, the stability of the electrical system is detected in time, and a fault probability index is obtained through a system entropy increase rate, the electrical stability index, a thermal coupling factor, a wind system efficiency coefficient and a temperature control abnormal index. Therefore, the stability and the reliability of the equipment can be improved, the maintenance cost can be reduced, the use efficiency of the equipment is improved, and the accuracy and the safety of test results are ensured.

The invention relates to the technical field of communication and network transmission, in particular to a terminal data acquisition and transmission method for a long-distance heat supply pipeline. The method comprises the following steps that long-distance heat supply pipeline laying area data are obtained, pipe network laying form analysis is carried out, and single-pipe branched heat supply pipe network data are obtained; constructing a pipeline laying model based on the data of the single-pipe branched heat supply network; performing intelligent heat energy flow simulation based on the pipeline laying model, and calculating heat loss in the heat energy flow simulation process to obtain heat loss data; performing thermal protection thermal insulation material integration on the pipeline laying model based on the heat loss data to obtain composite thermal insulation material data; and identifying a straight pipe section of the pipeline laying model, and calculating the minimum thick wall of the straight pipe section to obtain minimum thick wall data. The heat efficiency, the stability and the intelligent management capability of the pipeline system are improved based on the communication and network transmission technology.

The invention relates to the technical field of intelligent control, and particularly discloses a boiling point self-adaptive heating control method and device for a water dispenser and the water dispenser. The method comprises the steps that the boiling point temperature of drinking water is determined according to the environment air pressure value; controlling the heating device to heat the drinking water in a high-power mode until the temperature of the drinking water reaches a preset first temperature threshold value; after the temperature of the drinking water reaches the first temperature threshold value, the heating device is controlled to continuously heat the drinking water in a low-power mode until the temperature of the drinking water reaches the boiling point temperature; according to the method, firstly, the environment air pressure value is obtained, the boiling point temperature of drinking water is adaptively determined according to the environment air pressure value, the defect that the boiling point temperature of a traditional water dispenser is fixed is overcome, the accuracy of the boiling point temperature in different air pressure environments is guaranteed, meanwhile, a two-section type heating control mode is adopted, and the heating efficiency can be guaranteed while the heating efficiency is guaranteed. The energy consumption is reduced, and the scale generated by violent boiling is reduced.

A heat pump system for a vehicle is configured to selectively exchange heat between coolant and the thermal energy generated from refrigerant at the time of condensation and evaporation of the refrigerant. The heat pump system heats the vehicle interior using the heat-exchanged high-temperature coolant and improves the heating efficiency of the vehicle by selectively using the ambient air heat, the waste heat of electrical components, and the waste heat of the battery module, at the time of heating the vehicle interior, thereby increasing the overall travel distance of the vehicle by efficiently adjusting the temperature of a battery module for an optimal performance of the battery module.

The embodiment of the invention provides an energy storage peak regulation system and method coupling waste heat recovery and water body heat storage. The system comprises a thermal power generation subsystem, a circulating water waste heat utilization subsystem, a water body heat storage subsystem and a heating subsystem. By recycling waste heat of circulating water, the heat efficiency of the unit can be improved under the same combined heat and power generation capacity, the coal consumption rate is reduced, and energy-saving and carbon-reducing transformation is assisted to be achieved. After the water body heat storage technology is coupled, the system can participate in peak regulation and peak service all the year round, and flexible transformation is assisted to be achieved; the diversified heat supply modes of steam extraction heat supply, circulating water waste heat recovery heat supply and heat storage water body heat supply assist in achieving heat supply transformation. The circulating water waste heat utilization technology and the water heat storage technology are deeply coupled with an existing combined heat and power generation unit, and energy-saving and carbon-reducing transformation, flexible transformation and heat supply transformation of the combined heat and power generation unit can be achieved at the same time.

The invention discloses a deep arsenic removal device for phosphoric acid and an arsenic removal process thereof, and relates to the technical field of efficient arsenic removal in phosphoric acid, the deep arsenic removal device comprises an automatic feeding continuous arsenic removal reactor, under the cooperation of a temperature control heating assembly, an arsenic biosensor, a material removal driving motor, a rotating rod, a drying rake blade and a heat conduction rod, the position of a microwave heating source is adjusted, and the arsenic removal efficiency is improved. The microwave heating is more accurate through the intelligent control of the microwave power, and the microwave heating is combined with the internal drying rake blade stirring system, so that the heating efficiency of the material is improved, the uniform mixing of the material is promoted, the temperature change of different areas in the automatic feeding continuous arsenic removal reactor can be adapted, and the continuous arsenic removal effect is improved. According to the technical scheme, the uniformity and controllability of reaction conditions are guaranteed, the heat conduction rods arranged in an array mode can quickly respond to temperature changes, uniform distribution of heat is achieved, local overheating is avoided, meanwhile, the heat conduction path can be flexibly adjusted according to requirements, and the temperature uniformity in the automatic feeding continuous arsenic removal reactor is guaranteed.

The embodiment of the invention provides an aerosol product, a heat-not-burn system and a mold. The heat-not-burn system comprises the aerosol product and a heat-not-burn device. The aerosol product comprises a protective layer, the protective layer comprises vertical fiber structures arranged in the circumferential direction, the vertical fiber structures extend in the length direction of the aerosol product, and a piercing position allowing a heating tooth of a heating non-combustion device to pierce is formed between every two vertical fiber structures; the aerosol base material and the protective layer enclose an accommodating space, and the accommodating space is filled with the aerosol base material. By adopting the embodiment of the invention, the outer layer of the aerosol product is provided with the piercing position, so that the heating teeth easily penetrate through the aerosol product from the side surface and pierce into the aerosol product, the aerosol base material can be uniformly heated, and the heating efficiency can be improved.

The invention discloses an efficient pulsating heat pipe air pre-heater gas stove, and relates to the technical field of gas stoves. The air pre-heater comprises an air pre-heater body, a pulsating heat pipe and an air supply pipeline, the pulsating heat pipe is embedded in an inner cavity of the air pre-heater body, and the bottom of the air pre-heater body communicates with the top of the air supply pipeline; the air pre-heater body comprises a heat insulation radiation cavity and an air pre-heating cavity. The heat transfer efficiency of the pulsating heat pipe is far higher than that of traditional metal heat conduction, heat of high-temperature flue gas can be rapidly absorbed, waste heat loss is reduced, the heat efficiency is improved, secondary air is heated through the air preheater, the temperature of the secondary air is increased, the combustion temperature is increased, gas combustion is more sufficient, emission of carbon monoxide and nitric oxide is reduced, and the energy-saving and environment-friendly effects are achieved. The pulsating heat pipe has the unique advantages of being small and exquisite in structure, flexible in arrangement and efficient in heat transfer, and the heat efficiency of the gas stove is effectively improved through the L-shaped pulsating heat pipe heat insulation air pre-heater structure.

The invention discloses an efficient anti-freezing and anti-blocking integrated induction heating system and method for an oil and gas pipeline, belongs to the technical field of anti-freezing and anti-blocking of oil and gas pipelines, and aims at solving the problems that in the prior art, heating efficiency is low, energy consumption is huge, heating uniformity and adaptability are poor, the system integration degree is low, and the intelligent degree is insufficient. Comprising the steps of S1, induction heating unit arrangement and power management; s2, real-time temperature monitoring and data acquisition; s3, intelligent data analysis and precise heat management; the electromagnetic induction heating principle is adopted, the induction coil directly heats the pipeline and the internal medium, heat conduction loss and heat energy radiation loss of heating modes such as traditional resistance wires and heat tracing bands are reduced, the intelligent power management module can optimize power supply and power adjustment, and the self-adaptive environment and load adjustment strategy is combined, so that the self-adaptive load adjustment is achieved. The heating power can be automatically adjusted according to the environment temperature and the pipeline load, the anti-freezing and anti-blocking effect is guaranteed, meanwhile, energy consumption is remarkably reduced, and the burden of an electric power supply system is relieved.

The invention relates to the technical field of methanol combustion optimization, in particular to a methanol fuel combustion multi-target collaborative optimization method and a self-adaptive energy consumption regulation and control system, and solves the problem of balance between model precision and real-time optimization efficiency. The method comprises the following steps: constructing a special digital twinborn model, integrating a parameterized chemical reaction dynamic sub-model, a calibration interface dynamically coupled with real-time in-cylinder pressure data and a flow field simulation module, and continuously and dynamically updating; parallel simulation control parameter combination is carried out by using the dynamic model, and multi-target performance including at least two items of heat efficiency, NOx emission and combustion stability is predicted; outputting an optimization parameter set through Pareto frontier analysis of a multi-objective optimization algorithm; and finally, combining the parameter set with the real-time state of the model to select a control parameter to adjust the operation of the equipment, thereby realizing multi-target collaborative optimization and self-adaptive energy consumption regulation and control. According to the method, the system working condition adaptability, the multi-target optimization fineness and the energy consumption regulation and control intelligent level are improved.

The invention relates to the technical field of control and adjustment, in particular to an intelligent control system and method for an induction cooker, and the method comprises the steps: collecting the material and temperature data of cookware through a multi-source sensing module; the collaborative prediction module dynamically adjusts the window size of the time convolution network and generates a power compensation parameter and a frequency tuning parameter; the simulation execution module executes triple calculation of particle swarm optimization, thermal inertia calibration and nonlinear constraint verification, and outputs optimization control parameters; and the optimization feedback module updates the weight of the thermal inertia model in real time through a double-loop feedback mechanism and calibrates prediction parameters. Perceptual data synchronous processing is achieved through edge calculation, knowledge graph driving load sudden change rapid decision is achieved, the simulation efficiency is improved through dynamic step length control, and material parameter mapping is optimized through historical deviation statistics. The problem of multi-link cooperative response mismatch under the load sudden change working condition is solved, the power regulation response time delay is shortened, and the heating efficiency stability and the safety protection precision are remarkably improved.

The utility model relates to the field of resistance furnaces, and discloses a multi-tube resistance furnace for the production of carbon nanotube films, including a resistance furnace, an upper cover is installed at the top of the resistance furnace, a rotating assembly is installed at the top of the upper cover, a fixing assembly is plugged into the top of the resistance furnace, a heating tube is installed on the inner wall of the fixing assembly, a limiting assembly is installed at the left end of the resistance furnace, the fixing assembly includes a sleeve, a positioning ring is provided on the outer wall of the sleeve, a positioning groove is provided at the bottom end of the upper cover, the positioning ring and the positioning groove are matched, a positioning groove is also provided at the top of the resistance furnace, and a fixing block is plugged into the inner wall of the sleeve. In the utility model, by setting a fixing assembly, multiple groups of heating tubes can be fixed at one time, and the rotating assembly can be used to drive the fixing assembly to rotate, so as to ensure that the materials inside the multiple groups of heating tubes can be evenly heated. Since multiple groups of materials can be heated at one time, the heating efficiency is high when in use.

The invention relates to the technical field of energy conservation and environmental protection, in particular to an industrial boiler combustion oscillation modal suppression system and a method thereof, and constructs a system which is highly intelligent, high in adaptability and remarkable in suppression effect by fusing innovative technologies such as multi-dimensional perception, intelligent identification, active suppression and adaptive optimization. The data acquisition module accurately captures hearth temperature, flame video and sound pressure signals; the signal processing module deeply analyzes and extracts oscillation modes of a temperature field and a flame area, and analyzes a sound pressure signal frequency spectrum through short-time Fourier transform; the mode identification module accurately identifies the combustion oscillation mode and determines the characteristic frequency and amplitude of the combustion oscillation mode; the suppression control module generates an infrasonic wave intervention signal to form an anti-phase sound field so as to effectively suppress oscillation; the fuel adjusting module adjusts the opening time sequence of the gas nozzle according to the instruction, and fuel supply is optimized. According to the system, the operation stability and heat efficiency of the boiler are remarkably improved, NOx emission is greatly reduced, and powerful technical support is provided for clean and efficient operation of the industrial boiler.

The invention discloses a graphene heating module and a heating device.The graphene heating module comprises a base and at least one graphene heating module, the base is provided with a fluid channel, the graphene heating module is fixedly connected with the base, the graphene heating module comprises a high-temperature-resistant frame, and a flow channel is formed in the middle of the high-temperature-resistant frame; a flow channel is formed in the high-temperature-resistant frame, a latticed graphene heating sheet covers the flow channel, the graphene heating sheet is fixedly connected with the high-temperature-resistant frame, the graphene heating sheet comprises latticed fiber cloth, a graphene film is arranged on the fiber cloth, and an electrode electrically connected with the graphene film is arranged on the high-temperature-resistant frame. According to the graphene heating module and the heating device provided by the invention, the grid-shaped structure is adopted, so that fluid can pass through each small hole, the contact area between the fluid and the graphene heating sheet is increased, and the heating efficiency is improved.

According to the annual constant-temperature flue gas source heat pump system based on gas turbine combined heat and power generation, high-temperature flue gas generated by the gas turbine is recycled so as to reduce pollution and improve the energy utilization rate, the waste heat boiler recycles waste heat of a flue gas high-temperature section, and the temperature control unit supplies water to the waste heat boiler; the heat pump unit is used for recovering waste heat of a low-temperature section in the flue gas and heating water in a pipeline of the temperature control unit; the heat pump unit comprises an evaporator and a condenser; the temperature control unit switches the system operation state according to the seasonal mode and adjusts the gas inlet temperature of the gas turbine to the standard temperature; according to the scheme, through innovative designs of comprehensive cold and heat utilization, cold and heat combined supply, flue gas extraction mode innovation, modular design, condensate water recovery treatment, working medium direct circulation and the like in the system, the heat efficiency, the operation flexibility and the resource utilization efficiency of the system are remarkably improved, and meanwhile the operation risk and the investment cost are reduced.

The invention provides a method and system for utilizing flue gas generated after petroleum coke calcination, and belongs to the field of aluminum electrolysis and aluminum carbon. The method comprises the following steps: collecting high-temperature flue gas discharged after calcining petroleum coke; the high-temperature flue gas is subjected to heat exchange treatment, and low-temperature flue gas with the set temperature is obtained; low-temperature flue gas is used as a heat source, the wet-based petroleum coke is heated and dried, and dry-based petroleum coke with a set water value is obtained; and calcining the dry-based petroleum coke, and circularly using flue gas collected by calcining for heating and drying the wet-based petroleum coke to form a closed cycle. High-temperature flue gas obtained after calcination is subjected to heat exchange to form low-temperature flue gas, the low-temperature flue gas is used for drying wet-based petroleum coke, a flue gas circulation system is formed, and multi-stage utilization of waste heat is achieved. Meanwhile, the dried petroleum coke can reduce energy consumption required by water evaporation during calcination, and erosion of water vapor to a hearth refractory material is avoided. Therefore, the negative influence of petroleum coke moisture on the heat efficiency is reduced while the waste heat utilization rate after petroleum coke calcination is improved.

The invention discloses an alcohol hydrogen engine system and a control method. The engine system comprises an engine, a methanol box, a methanol pump, a methanol heater, an NH3 reforming hydrogen production device, a hydrogen-rich gas storage tank, a urea box, a urea pump and an SCR aftertreatment system. The engine nozzle is a coaxial double-channel hydrogen and methanol nozzle, injection of two kinds of fuel can be achieved through one nozzle, and flexible control over different proportions of hydrogen and methanol can be achieved in the same combustion cycle. According to the method, the mode that the NH3 urea water solution is used for online preparation of hydrogen and liquid methanol for mixed combustion is adopted, the cold start problem of the methanol engine is solved, meanwhile, engine waste heat is effectively recycled, the fuel heat value grade is improved, and then the engine heat efficiency is improved; and the combustion speed can be effectively increased by adopting hydrogen gas to assist combustion, so that the heat efficiency of the engine is improved.

The invention provides a pot support, and relates to the technical field of gas cooks.The pot support mainly comprises a ring body, and the outer edge of the ring body is higher than the inner edge of the ring body so that a combustion area can be defined; an upper cavity and a lower cavity which are stacked and independent are formed in the ring body; the lower cavity is a closed cavity; an air inlet hole and an air outlet hole which are communicated with the interior and exterior of the upper cavity are formed in the cavity wall of the upper cavity to form a channel for high-temperature gas to flow; the air inlet and the air outlet are arranged away from each other; the air outlets face the through hole in the bottom of the ring body. According to the embodiment provided by the invention, part of generated high-temperature gas is sucked into the upper cavity from the air inlet holes in the high position, the high-temperature gas flows along the upper cavity, heat of the high-temperature gas is conducted through the cavity wall, the temperature of the whole pot support is greatly increased, the heated pot support directly conducts efficient heat conduction heating on a pot, and the heating efficiency is improved. And the high-temperature gas finally flows downwards and flows out from the gas outlet hole, and flows upwards and is sucked into the upper cavity, so that heat circulation is formed, and the overall heat efficiency is remarkably improved.

The utility model discloses a combustion control assembly of a wall-hanging stove, which relates to the technical field of combustion control of wall-hanging stoves and comprises a combustion chamber, a mixer, a gas valve and a gas calorific value instrument, the mixer is provided with a first input end, a second input end and an output end, the first input end is connected with a combustion-supporting gas pipeline, and the second input end is connected with a gas pipeline. The output end is connected with the combustion chamber; the gas valve is arranged on the gas pipeline; the gas calorific value instrument is connected with the second input end or the output end, and obtains gas calorific value components before the gas and the combustion-supporting gas are mixed or calorific value components of mixed gas formed after the gas and the combustion-supporting gas are mixed in real time; therefore, the calorific value components are obtained through real-time measurement by arranging the gas calorific value instrument, then rapid and accurate self-adaptive adjustment of the air-fuel ratio is achieved, the gas flow / gas volume and / or the combustion-supporting gas flow / combustion-supporting gas volume are adjusted / determined in real time, the influence of gas component difference on the heat efficiency can be well adapted, and it is ensured that the wall-hanging stove is in the optimal combustion condition in real time.

A heat pump system for a vehicle may be configured to adjust a temperature of a vehicle interior by selectively exchanging heat between coolant and thermal energy generated from refrigerant at the time of condensation and evaporation. The system may use the heat-exchanged low-temperature or high-temperature coolant to improve the heating efficiency of the vehicle. The system may selectively use ambient air heat, waste heat of electrical components, and waste heat of a battery module, at the time of heating the vehicle interior. The system may increase the overall travel distance of the vehicle by efficiently adjusting the temperature of a battery module for optimal performance of the battery module.

The invention discloses a boiler operation simulation method and system based on multi-model coupling. The method comprises the steps that a boiler high-precision mechanism model is established based on the specific type and working condition of a boiler; establishing a CFD-AI model of the combustion process by combining a CFD technology with an AI algorithm; constructing a data driving model according to the operation data and jointly constructing a boiler dynamic model; establishing a controller based on the boiler dynamic model to perform multivariable coupling control; the system comprises a model establishment module, a coupling control module, a key influence factor identification module and a fault judgment module. The method can accurately describe the flowing, combustion and heat exchange processes in the boiler, can consider a plurality of influence factors, provides real dynamic characteristics and comprehensive analysis of the boiler system, realizes early warning and fault diagnosis, improves the operation efficiency and safety of the boiler, reduces the downtime, improves the heat efficiency of the boiler, and reduces the energy consumption of the boiler. Energy consumption and emission are reduced, support is provided for sustainable development, and cost and time in the testing and debugging process are reduced.

The granular material 3D printer with the cavity temperature comprises a printer body, a fan is arranged on one side of the printer body, a cold and hot air system is arranged on the other opposite side of the printer body, a filtering air outlet is formed in the upper portion of the cold and hot air system, and a vacuum adsorption platform is arranged in a cavity of the printer body; a liftable bracket is arranged above the vacuum adsorption platform, an X shaft and a Y shaft are arranged on the bracket, a printer head is arranged on the X shaft and can reciprocate along the X shaft, and the four lead screws drive the bracket to vertically ascend and descend along an optical axis when rotating synchronously. When the granular material 3D printer with the cavity temperature is used, cold and hot air circulation can be adjusted according to the characteristics of granular materials, model cooling and cavity temperature guaranteeing are facilitated, in addition, the printing precision can be improved through stable lifting of the bracket, meanwhile, the heating efficiency of the cavity is further improved through arrangement of organ cloth, and the granular material 3D printer is suitable for application and popularization.

The invention discloses a heating furnace group control system and method based on the Internet of Things, and relates to the technical field of industrial Internet of Things heating furnace control. The adaptive edge calculation module fuses algorithm processing data and reduces response delay; the dynamic thermal efficiency optimization module predicts and improves thermal efficiency; the digital twinborn decision support module realizes fault prediction; the collaborative energy scheduling module optimizes multi-furnace operation; the block chain security management module guarantees data security; and the cognitive interaction interface module realizes multi-modal interaction, and the system also comprises extension modules such as a multi-scale combustion optimization module and the like, so that accurate control and intelligent management are realized. According to the invention, accurate acquisition and real-time processing of multi-dimensional data of the heating furnace group are realized, the heat efficiency is improved, and energy consumption and emission are reduced; the system has the capabilities of fault prediction, cooperative scheduling and data security guarantee; and the man-machine interaction experience is improved, the production efficiency is improved, and intelligent upgrading of industrial heating is promoted.

The invention discloses a wafer carrier with a position correction function, and relates to the technical field of wafer carriers. Comprising a base, a fixed cylinder is arranged on the upper side of the base, damping springs are installed on the outer side of the fixed cylinder, a first coil is embedded in the lower side of the fixed cylinder, the two ends of the first coil are electrically connected with a control system, a guide column is installed in the fixed cylinder, and a detection ball and a push plate are installed between the fixed cylinder and the guide column; a wafer is carried on the carrying plate, a conducting medium is arranged on the carrying plate, the conducting medium annularly flows along the inner wall of the outer ring electrode under the influence of Lorentz force, the heated conducting medium annularly flows in the heating cavity and continuously makes contact with the heating wire, the temperature of the conducting medium is more uniform, and the heating efficiency is improved. Therefore, the overall temperature of the heating chamber becomes uniform, so that the wafer and the tray are preheated by the carrying groove, the wafer reaches the required temperature, and the wafer processing efficiency is improved.

Disclosed in the present application are a startup control method for an electric heater, and a controller and a heating device. The startup control method comprises: when a heating instruction is received, acquiring a temperature, which is measured by a first temperature sensor, wherein the first temperature sensor is arranged at a liquid inlet of an electric heater, a startup process of the electric heater is divided into a plurality of operation stages, and the operation stages respectively correspond to different power control strategies; determining a startup duration on the basis of a temperature interval corresponding to the temperature, which is measured by the first temperature sensor, wherein the startup duration comprises the duration of each operation stage among the plurality of operation stages; and on the basis of the duration of each operation stage, controlling the electric heater to start in the plurality of operation stages according to the corresponding power control strategies. By means of the present application, a water pump can rapidly establish flow in severe environments, and reliably and stably start with higher safety, so as to avoid an electric heater from being damaged due to the appearance of a localized overheating zone, such that the heating efficiency is high, and the probability of the protective locking of the electric heater can be effectively reduced while rapid temperature rise is realized.

The hot gas bulging forming system comprises a pipe bending device, a feeding device, a pre-forming device, a heating device, a bulging quenching device and a discharging device which are sequentially arranged, the heating device comprises a heating cavity, and an electrode chuck used for clamping the end of a metal pipe is arranged in the heating cavity; the electrode chuck is connected with an IGBT induction heating device, an infrared thermometer is arranged in the heating cavity, and the infrared thermometer and the IGBT induction heating device are both in communication connection with a controller. According to the hot air bulging forming system, materials with different thicknesses and pipes with complex shapes can be conveniently heated, the heating rate of the materials with different coatings can be adjusted through the controller according to coating characteristics, accordingly, the coatings are protected to the maximum extent, the better product surface quality is obtained, the application range is wide, the heating speed is high, and the production efficiency is high. And the heating efficiency is greatly improved. The invention further discloses a hot gas bulging forming method.

The invention belongs to the field of wall type tangential combustion, and discloses a wall type tangential combustion method and system for combusting inferior coal, which can automatically adjust the gas amount and the air door opening by monitoring the pressure, the oxygen content and the gas flow in a hearth in real time. The accurate adjustment can ensure the optimal mixing proportion of the gas and the air, gas waste is avoided, the combustion efficiency is improved, and therefore the heat efficiency of the boiler is improved. The flame state information is continuously collected, the gas amount is adjusted in combination with flame stability, it is guaranteed that the combustion process is always in the optimal state, unburnt fuel and excessive discharged waste gas are reduced, and therefore the overall heat efficiency is improved. The combustion process is monitored in real time through the air pressure switch, the gas flow sensor, the flame ionization electrode and the like, and the gas amount and the air door opening degree are dynamically adjusted according to feedback signals. The automatic adjusting function can ensure that combustion is always in a stable and efficient state, and excessive or insufficient gas supply is avoided.

The invention provides a multi-energy complementary heating system suitable for dwellings in Tibet regions, and relates to the technical field of building energy conservation and renewable energy utilization. The multi-energy complementary heating system suitable for the folk houses in the Tibet region comprises a solar heat collector, a phase change energy storage wall, a heat storage water tank, an outdoor air source heat pump unit and a tail end fan coil. The solar heat collector collects heat to provide heat for heating when the solar radiation intensity is high. When the solar radiation intensity is low or in cloudy and rainy days, the air source heat pump unit serves as an auxiliary heat source to absorb heat from outside air for indoor heating; the phase change energy storage wall can store redundant heat and release the heat at night or at low temperature, so that all-weather heating is ensured; when the system is in a non-working state in a cold environment, the water pump is started, so that a circulating medium in a pipeline keeps flowing slowly, and freezing is avoided; the special climate and building structure of Tibet are fully considered, the heating efficiency is improved, and the stability and economical efficiency of the system are enhanced.

The present invention discloses a method for optimizing a silicon carbide vacuum sintering furnace based on computational heat transfer simulation, comprising the following steps: establishing a heat radiation and heat conduction model of the vacuum sintering furnace during the heating process according to the parameters of the vacuum sintering furnace body; performing computational heat transfer simulation to obtain a temperature rise curve of the vacuum sintering furnace during the entire heating process; optimizing the original furnace type by calculating and comparing the temperature rise curves of workpieces under different heating rates, different graphite heating tube diameters, and different graphite heating tube-to-effective heating zone spacings, the temperature difference between the vertex workpiece and the center workpiece, and the temperature difference between the surface and the core of the same workpiece. The present invention provides a reference for the performance optimization of the vacuum sintering furnace by studying the effects of different heating rates, different graphite heating tube diameters, and different graphite heating tube-to-effective heating zone spacings on the heating efficiency and furnace temperature uniformity of the vacuum sintering furnace, meets the process production requirements of the silicon carbide vacuum sintering furnace, and improves the heating efficiency and furnace temperature uniformity of the heating system.