1019 results about "Auxiliary heating" patented technology

The invention relates to a temperature control method and device and nucleic acid amplification detection equipment. The method comprises the following steps: when a main heating element reaches a target working temperature and the temperature is stable, obtaining a current combination corresponding to each auxiliary heating element according to the target working temperature and a preset corresponding relation; wherein the preset corresponding relation is the relation between the temperature and the current of the auxiliary heating piece meeting the temperature uniformity requirement; each auxiliary heating element is arranged corresponding to each temperature compensation area; and according to the current combination, an auxiliary heating element is driven to carry out temperature compensation adjustment on the temperature compensation area. The temperature uniformity can be realized, and the temperature accuracy is ensured.

The invention discloses heat storage equipment for a stepped stacking bed. The equipment comprises a phase change heat storage capsule, a flow equalizing supporting device, a heating system, a heat preservation layer, a heat exchange air inlet and outlet and a device shell. The heat preservation layer is laid on the inner side of the device shell. Heat exchange air inlets and outlets are formed in the lower end and the upper end of the device shell; the heating system comprises a central heating device, an auxiliary heating device and a temperature control device, the phase change heat storage capsules are placed on a flow equalizing plate supported by a boss, and the phase change heat storage capsules are distributed in the heat storage tank in a stepped mode according to the phase change temperature of the phase change materials. According to the device, cascade storage and release of heat can be achieved, the heat exchange efficiency is improved, and the problem of intermittency of renewable energy sources is solved.

The invention relates to the field of refrigerator control, and particularly discloses a refrigerator waste heat recovery system which firstly collects multi-dimensional data including the environment, the electricity price and the equipment state in real time. Thirdly, performing deep processing on the data to construct a feature vector capable of reflecting the dynamic state of the system; the vector accurately predicts the heat supply power and the heat demand quantity in a period of time in the future through a machine learning model. And finally, based on the prediction results, in combination with economic factors such as time-of-use electricity price, equipment cost and the like, multi-objective optimization calculation is performed, and an optimal control plan with excellent energy efficiency and economic efficiency is generated. The plan is no longer a simple afterward response, but prospectively determines whether to start a water pump to store heat at the current moment, so that off-peak storage and on-demand distribution of heat energy are realized, waste heat waste and unnecessary auxiliary heating are effectively avoided, the technical pain point of supply and demand mismatching is solved, and the comprehensive energy efficiency and economic benefits of the system are remarkably improved.

A heat pump system includes a heat pump and an auxiliary heat source. A heating coefficient of performance is determined for the heat pump based on ambient outdoor air temperatures, and the heat pump is operated to heat a process fluid an output temperature based on the heating coefficient of performance and a reference heating coefficient of performance. The auxiliary heat source can be operated to bring the process fluid to a target temperature for heating a load, with the target temperature being a function of the ambient outdoor air temperatures.

The invention provides a heavy oil thermal-flow coupling development experimental device and method based on microwave-assisted gravity drainage, and belongs to the field of oil-gas field development. The experimental device comprises a three-dimensional oil reservoir simulation system, a microwave-assisted heating system, a horizontal well injection-production regulation and control system and a multi-field monitoring system; the microwave auxiliary heating system comprises a microwave generation regulation and control system, a microwave transmission system and a shaft integrated microwave radiator, the microwave generation regulation and control system comprises an industrial grade microwave generator, a power regulator and a PLC, and the microwave transmission system comprises a microwave coaxial cable and a microwave waveguide tube bundle; and the microwave generator is continuously connected with the microwave waveguide tube bundle and the shaft integrated microwave radiator. According to the heavy oil thermal-flow coupling development experimental device and method based on microwave-assisted gravity oil drainage, the technical problems that an existing deep heavy oil thermal recovery experimental device cannot reproduce a'thermal-flow-force 'multi-field coupling environment, the microwave heating adaptability is poor, and the experimental scale and the field deviation is large are solved. The heavy oil thermal-flow coupling development experimental device and method based on microwave-assisted gravity oil drainage solve the technical problems that an existing deep heavy oil thermal recovery experimental device cannot reproduce the'thermal-flow-force' multi-field coupling environment.

The invention provides a multi-heat-source combined energy storage and auxiliary heating system and method for a nuclear fusion device, and belongs to the field of energy conversion and utilization of the nuclear fusion device, and the system comprises a high-temperature heat source storage and supply system which is used for receiving and storing heat of a cladding and a multiplication region coolant, and continuously outputting a high-temperature heat source during the operation and pause of a fusion reactor; the medium-temperature heat source and auxiliary supply system is used for receiving the heat of the divertor coolant and supplementing and outputting the medium-temperature heat source through a medium-temperature auxiliary heater during the suspension period of the fusion reactor; the low-temperature heat source and auxiliary supply system is used for receiving heat of the vacuum chamber coolant and supplementing and outputting a low-temperature heat source through a low-temperature auxiliary heater during the suspension period of the fusion reactor; the high-temperature heat source storage and supply system, the medium-temperature heat source and auxiliary supply system and the low-temperature heat source and auxiliary supply system operate independently. According to the invention, high-temperature heat, medium-temperature heat and low-temperature heat are simultaneously, continuously and stably supplied to the outside during operation and pause of the fusion reactor.

The multi-energy coupling heating system comprises a geothermal energy utilization module, an air energy utilization module, a solar energy utilization module, an energy storage tank, a control module and the like, and multi-loop cooperation is formed through a pipeline and a circulating pump. The method comprises a winter heating mode and a summer heat storage mode, wherein geothermal energy is used as a basis in winter, solar energy is used for auxiliary heating, and air energy is used for supplementary heating; solar energy is utilized to store heat underground in summer to maintain soil heat balance. And the solar PV / T assembly generates power to be used by system equipment and stores the power. Multi-energy complementation is achieved, the energy self-sufficiency rate is increased, cost is reduced, carbon emission is reduced, stable operation under extreme working conditions is guaranteed, and the system is suitable for rural heating in the northwest region.

The invention discloses a raw coal drying dust removal system with a waste heat recovery function and a raw coal drying method. The raw coal drying dust removal system comprises a crushing assembly, an electric auxiliary heating rotary kiln, a cooling section rotary kiln, a gas-solid separator, a tail gas treatment dust removal assembly, a waste heat recovery heat exchanger and a heat pump system. The crushing assembly, the electric auxiliary heating rotary kiln and the cooling section rotary kiln are communicated in sequence; a first gas outlet of the electric auxiliary heating rotary kiln is communicated with the gas-solid separator; the gas-solid separator is communicated with the waste heat recovery heat exchanger through the tail gas treatment dust removal assembly; the heat pump system is connected with the cooling section rotary kiln and the waste heat recovery heat exchanger, and an air outlet of the heat pump system is communicated with an air inlet of the electric auxiliary heating rotary kiln. By means of the waste heat recovery heat exchanger and the heat pump system, originally discharged waste heat is recycled, energy consumption of electric auxiliary heating is reduced, and recovery and temperature rise of tail gas heat are achieved.

The invention discloses a follow-up type double-face induction heating auxiliary incremental forming device, method and equipment and a medium, and relates to the field of sheet metal forming. The forming tool heads are fixed to the tail end of the mechanical arm, the two sides of the to-be-machined plate are each provided with one forming tool head, and the forming tool heads are used for extruding the to-be-machined plate to enable the to-be-machined plate to deform; and the electromagnetic induction heating device is rotationally connected with the mechanical arm through a mounting bracket, and the electromagnetic induction heating device is used for providing an electromagnetic field to heat the to-be-processed plate. And the processing performance of the plate is improved in an electromagnetic induction auxiliary heating mode.

This invention belongs to the field of biomass subcritical fertilizer production, specifically relating to a mobile photovoltaic-powered subcritical fertilizer production system and its product application aimed at reducing nitrogen and phosphorus emissions, increasing efficiency, and resource-based disposal of high-moisture waste. It includes a solar preheating system, a photovoltaic power supply system, an auxiliary heating system, a hydrothermal reaction system, and a post-treatment system. The photovoltaic power supply system and auxiliary heating system are connected to the electrical load of the hydrothermal reaction system; the hydrothermal reaction system is connected to both the solar preheating system and the post-treatment system. This invention utilizes electrodialysis technology to desalinate the hydrothermal charcoal before returning it to the field. Through electrodialysis, the desalination rate of the charcoal reaches 45%-90%, and the conductivity of the desalinated charcoal is 1.40-6.75 mS / cm. The desalinated charcoal significantly increases crop yield; chlorophyll content increases by 25.5-67.5%, fresh weight increases by 18.5%-175%, and lettuce root length increases by 37.0%-98.2%. The high degree of desalination avoids the negative effects of salt stress on lettuce roots.

The utility model discloses a packaging structure of an air-cooled galvanic pile system, and relates to the technical field of air-cooled fuel cells. The device comprises a packaging housing, two adjusting mechanisms and a configuration mechanism, wherein the two adjusting mechanisms and the configuration mechanism are arranged on the packaging housing. According to the utility model, by arranging the adjusting mechanism, during cold start, the auxiliary heating assembly can be started, so that the air-cooled galvanic pile system can quickly reach the required temperature and the loss is reduced, and then, a hydraulic cylinder I can be started to be matched with a U-shaped block and a connecting rod I, so that a plurality of rotating blocks can rotate; during high-power operation, the large opening and closing angle of the fan can be adjusted, the motor is started at the same time, the motor drives the rotating shaft and the fan blades to rotate, meanwhile, when the fan blades rotate, the fan blades can rotate, and the fan blades can be driven to rotate. And air outside the packaging housing can be sucked into the packaging housing to cool the air-cooled galvanic pile system, so that the heat dissipation efficiency is improved.

The invention discloses a control method of an LNG (liquefied natural gas) ship isolation void modularized heating structure, which comprises a module frame, a main heater, a standby heater, an auxiliary heater and a heating coil, and is characterized in that the module frame is arranged in a motor chamber which is originally used for placing a compressor motor; the main heater, the standby heater and the auxiliary heater are all fixed on the module frame, the heating coil is fixed in a cabin of the isolation void cabin, and a plurality of temperature sensors are fixed on the front cabin wall and the rear cabin wall of the isolation void cabin. The isolated void modular heating structure is arranged in the compressor motor chamber, the heating coil is arranged in the internal space of the isolated void, and the heating medium conveying pipeline of the isolated void modular heating structure is connected with the heating coil, so that gas in the isolated void can be heated; condensate water is prevented from being formed in the isolation void cabin, material performance reduction caused by low temperature is avoided, and therefore the integrity of the ship structure is guaranteed, and ship navigation safety is guaranteed.

The present application relates to a fuel cell thermal management system, a vehicle and a fuel cell thermal management method. The fuel cell thermal management system comprises: a fuel cell stack, wherein a coolant conduit I is connected between a liquid outlet and a liquid inlet of the fuel cell stack, and a first water pump is mounted on the coolant conduit I; a first three-way valve, wherein a first port and a second port of the first three-way valve are connected in series to the coolant conduit I; a coolant conduit II, wherein an input port of the coolant conduit II is in communication with a third port of the first three-way valve, and an output port of the coolant conduit II is in communication with the liquid inlet of the fuel cell stack; and a PTC heater, wherein the PTC heater is mounted on the coolant conduit II. A coolant can be directly heated by means of the PTC heater in the coolant conduit II until the temperature of the fuel cell stack rises to a normal operating temperature, thereby achieving a rapid cold start. The problems of a low heating rate and a low heat utilization rate when the PTC heater performs auxiliary heating on the stack by means of a heat exchanger during a cold start of conventional vehicles are solved.

The utility model provides a modular planting square cabin based on a water flow window, in the field of water flow window application, the modular planting square cabin comprises a cabin body, a water flow window module, an electrolytic cell, a first heat exchanger, a core reactor and a circulating water pump, the water flow window module is a partition in a cabin body space, and the space in the cabin body is divided into a plurality of planting spaces; a water outlet of a waterway in the water flow window module is connected with the electrolytic cell, an oxygen pipeline in the water flow window module is connected with an oxygen outlet of the electrolytic cell, and the electrolytic cell is connected with the power module; a first inlet of the first heat exchanger is connected with a hydrogen outlet of the electrolytic cell, a second inlet of the first heat exchanger is connected with a reactor outlet, and a heat exchanger outlet is connected with a reactor inlet; a hot water outlet of the heat-insulating tank is connected with a water inlet of a waterway of the water flow window module; the square cabin has the advantage of being high in energy storage density, energy storage and oxygen supply are achieved, and meanwhile the energy utilization efficiency is greatly improved.

The invention discloses an online temperature control device for an aluminum alloy profile extrusion die, and relates to the technical field of aluminum alloy profile extrusion devices, and the online temperature control device comprises a base, a movable workbench, a die conveying assembly, a heating element and a temperature control assembly. According to the online temperature control device for the aluminum alloy profile extrusion die, the full-automatic process of heating and heat preservation of the movable die is achieved, the overall time of temperature control and die replacement of the movable die is shortened, the safety and continuity of the production process are improved, and the production efficiency is improved through wrapping of the heat preservation cover and cooperative work of the heating element and the auxiliary heating element. Due to real-time feedback regulation and control of the temperature detection element and the PLC control system, the temperature of the movable mold can be stably maintained within the range required by the process, and the problems of profile surface defects, dimensional precision deviation and the like caused by temperature fluctuation of the movable mold are effectively avoided; and the product quality consistency of the aluminum alloy section is obviously improved.

The invention relates to the technical field of automatic control of industrial electrolysis devices, in particular to an alkaline water electrolysis hydrogen production cold start control method which comprises the following steps: S1, loading a preset cold start operation parameter sequence, reading a locally stored breakpoint record file, analyzing step record identifiers in the breakpoint record file, and storing the step record identifiers in the step record file; determining a starting stage pointer of the current system, and generating an initial starting state parameter containing a target temperature rise curve and a current climbing rate; and S2, driving an alkali liquor circulating pump and an auxiliary heater to operate based on the initial starting state parameters, and monitoring the outlet temperature of the electrolytic bath in real time. According to the method, the change rate of the voltage and the temperature is calculated through the sliding time window, and it is ensured that the system updates the breakpoint state record only when the working condition is stable, so that the recovery capacity of the system under the outage or abnormal condition is effectively improved, and control overshoot possibly caused by recovery from a violent fluctuation state is avoided; and the reliability and the safety of the system are obviously enhanced.

This invention discloses a method and apparatus for fabricating complex hollow structures using pulsed DC and induction eddy current cyclic loading assisted diffusion bonding, relating to a method for assisted heating diffusion bonding. It achieves efficient and uniform heating of metallic materials. Step 1: Prepare a predetermined complex hollow metal structure to be diffuse bonded, polish and clean the surface of the complex hollow metal structure; Step 2: Place the complex hollow metal structure in a tooling mold for molding, and place the mold into a vacuum furnace; Step 3: Set up a dual-source control system; Step 4: Perform diffusion bonding under specified parameters, depressurize after the diffusion time is completed, and cool in the furnace until it reaches room temperature before removing the part. This invention combines pulsed DC heating and induction eddy current heating for diffusion bonding, improving diffusion efficiency while ensuring temperature uniformity, increasing the welding rate, and improving the quality of the diffusion joint.

The invention provides a method suitable for an environmental bin heating test, and belongs to the technical field of environmental bin heating test, the method comprises the steps: determining a temperature measurement position through a graph theory topology optimization sensor arrangement algorithm, constructing a temperature field graph, configuring a Beckfu controller to collect temperature data at high frequency, and carrying out sliding window statistical test processing; a high-power main heater and a low-power auxiliary heater are installed at the top and the bottom of the environment bin respectively to form a closed-loop circulation system, temperature control partitions are divided according to the temperature deviation value, and a fuzzy sliding mode variable structure control algorithm is adopted to calculate partition heater control instructions. A control instruction is input into the thermal field dynamic balance optimization model for global collaborative optimization, an optimal power distribution scheme is output, a variable-power staged heating strategy is executed to achieve rapid temperature rise and fine temperature adjustment, and the technical problem that the test precision is reduced due to uneven temperature field distribution in the environment bin heating test process is solved.

The present invention provides a heat treatment device for high-yield-strength ratio tire bead wire, comprising a heat treatment support group and a heat treatment assembly. A base is provided on one side of the heat treatment support group, a pair of horizontally arranged cross frames are connected to the top of the base, and a heat treatment assembly is provided between the pair of cross frames. The present invention uses a heating roller to transport the steel wire. After the external electric heating plate at the top of the inner cavity of the upper heating cover is powered on, the steel wire transported into the top of the inner cavity of the heat treatment assembly is heated. The electric heating controller controls the internal electric heating plate to perform heating, thereby increasing the temperature of the heating roller body and providing auxiliary heating for the transported steel wire, thereby improving the heating efficiency of the steel wire. When the steel wire is transported to the bottom of the heating roller, it is immersed in the quenching liquid filled in the inner cavity of the lower heating cover for quenching treatment, thereby greatly improving the practicality of the heat treatment.

The utility model discloses a split type multi-combined supply central air-conditioning system driven by solar energy, and belongs to the technical field of cooling and heating equipment. The system comprises a lithium bromide absorption refrigeration type host, a solar heat collector, a refrigeration water tank, a heating water tank, a plate heat exchanger, a fuel cell, a cooling tower, a wall-hanging stove and a fan pipe disc, wherein the lithium bromide absorption refrigeration type main machine absorbs heat energy provided by solar energy through lithium bromide, and the circulation process of refrigeration or heating is completed; water is heated by solar energy absorbed by the solar heat collector and fed into the heating water tank through a pipeline to be heated by the system. The plate heat exchanger is responsible for heat exchange between the lithium bromide absorption refrigeration host and the heating water tank; the fuel cell supplies power to the system, and the wall-hanging stove assists in heating the heating water tank. The cooling tower is used for dissipating heat of the lithium bromide absorption refrigeration host; cold water in the refrigeration water tank is dissipated into a room in an air mode through the fan pipe disc so that the system can conduct refrigeration.

The invention discloses an environment-friendly and energy-saving type marine product cold and hot air drying system and method, and belongs to the technical field of food processing intelligent control. The system comprises a drying chamber, an air energy unit, a main circulating fan, a dehumidification module, a heat recovery pipeline, a heat recovery induced draft fan, an auxiliary heater, a mode switching valve group, a control system and a plurality of sensors. The system returns dehumidified dry air to the air energy unit through the heat recovery pipeline to form closed loop circulation, and only moisture is discharged, but heat is not discharged. The system monitors the weight of marine products in real time and calculates the drying rate through an electronic scale, and dynamically adjusts the temperature and the wind speed of a drying chamber through a PID algorithm, so that the drying rate is kept within a target interval. The drying method comprises the three steps of intelligent mode decision making based on environmental parameters, dynamic optimization drying process control and drying end point judgment and shutdown. According to the system, efficient heat recycling, accurate drying parameter control and multi-sensor cooperative monitoring are achieved, energy consumption is remarkably reduced, and the product quality is improved.

The invention relates to the technical field of drying processing, in particular to an automatic drying device and method for grain processing, and the automatic drying device comprises a base, a roller, an adjusting unit and a hot air unit. According to the grain drying machine, the length of a material curtain raised by grains in the accumulation area is reduced by means of the adjusting unit, namely, the uniformity of the raised grains is reduced, the material curtain formed when the second raising plate raises the grains in the middle drying area is uniform and is in the maximum length, the grains are uniformly dispersed and dried, and the drying efficiency is improved. Therefore, the problem that grains are overheated due to the fact that the grains are excessively raised close to a hot air area is avoided, and internal and external common drying is formed through a hot air cylinder, an air outlet sleeve and an auxiliary heating ring in the hot air unit. Meanwhile, in the middle drying area, it is ensured that hot air still has heat needed for drying after flowing from right to left by means of heat transferred into the auxiliary heating ring after the roller is heated, and the drying effect of the middle drying area (away from a large amount of hot air outlet area) on the grains is improved.

The utility model discloses a polyimide film stretching device with a heat preservation function, which relates to the technical field of film stretching and comprises a frame and a fixing frame. Conveying rollers are rotationally connected to the two sides of the interior of the frame, motors are fixed to the two sides of the top face of the frame, output shafts of the motors are connected with the top ends of lead screws, the lead screws are in threaded connection with screw holes in the middles of adjusting blocks, the adjusting blocks are slidably connected with adjusting grooves in the inner side of the frame, and the side faces of the fixing frames and the adjusting blocks are fixedly installed. According to the polyimide film stretching device with the heat preservation function, the stretching position of a polyimide film can be heated through an auxiliary heating pipe arranged in the fixing frame, meanwhile, the temperature in the frame can be adjusted through a main heating pipe, and therefore the stretching position of the polyimide film can be heated through the auxiliary heating pipe; therefore, the problem that the polyimide film is torn in the stretching process due to temperature discomfort is prevented.

The invention discloses a proton exchange membrane fuel cell waste heat recovery injection type refrigerating system and a control method. The system comprises a fuel cell thermal management subsystem and an injection type refrigeration subsystem which are coupled through a heat exchanger. Wherein the injection type refrigeration subsystem is provided with a flow path selection unit and an auxiliary heating unit, and a switchable double-heat-source driving structure is formed. According to the control method, firstly, the effective waste heat output quantity of the fuel cell is estimated on line, then the effective waste heat output quantity is compared with the refrigeration requirement of the system in real time, and the system is driven to be intelligently switched among the three working modes according to the comparison result. When the waste heat is sufficient, only the waste heat is used for driving; when the waste heat is insufficient, auxiliary heating is synchronously started, and the working medium flow is accurately distributed to supplement heat; when the waste heat is interrupted, the auxiliary heating unit supplies energy independently, and stable energy supply is ensured through an advanced algorithm. The system solves the problems that low-temperature waste heat of the fuel cell is difficult to recycle, and traditional cooling is high in energy consumption and causes thermal pollution.

The invention belongs to the technical field of indoor heat supply, and relates to an indoor far infrared heat supply device which comprises a control system, a photovoltaic power generation device and a heat supply terminal, the photovoltaic power generation device and the heat supply terminal are electrically connected with the control system, and the photovoltaic power generation device is electrically connected with the heat supply terminal; the heating terminal comprises a far infrared floor heating system and an auxiliary heating device, the far infrared heating system is installed below a floor, and the auxiliary heating device is installed on the upper portion of the floor and can move; the far infrared floor heating system sequentially comprises a heating layer, a heat insulation layer and a reflecting layer from top to bottom, the heating layer is used for generating far infrared rays and heating the interior of a room through radiation, the heat insulation layer is used for preventing heat generated by the heating layer from losing downwards, and the reflecting layer is used for reflecting the heat lost downwards back to the interior of the room. The mode of photovoltaic power generation and far infrared heat supply is adopted for indoor heat supply, the remarkable energy-saving and emission-reducing effects are achieved, and meanwhile the comfort degree of indoor heat supply is improved.

The application discloses a control method and device of a PTC auxiliary heating device, an automobile air conditioner, a storage medium and a computer program product, and relates to the technical field of automobile air conditioners. The method comprises the following steps: in the case that the PTC auxiliary heating device does not start working after the automobile air conditioner is powered on, determining whether a fault occurs in a direct-current contactor according to standby parameters of the automobile air conditioner; if it is determined that no fault occurs, determining that the automobile air conditioner can start and run in a preset starting mode; if it is determined that a fault occurs, initiating a prompt message that the direct-current contactor has a fault; determining whether a fault occurs in a temperature protection module according to on-off parameters of a PTC protection circuit; if it is determined that no fault occurs, determining that the automobile air conditioner can run in a preset electric auxiliary heating mode; and if it is determined that a fault occurs, initiating a prompt message that the temperature protection module has a fault. According to the scheme, protection measures are taken when faults occur in the direct-current contactor and the temperature protection module, and the reliability and safety of the automobile air conditioner are improved.

The invention relates to a preparation method of a high-quality EB evaporation target, and relates to the field of target preparation, and the preparation method comprises the following steps: loading a powder raw material into a cleaned crucible, and pre-compacting to obtain a pre-compacted crucible; putting the pre-compacted crucible into spark plasma sintering equipment, vacuumizing and pressurizing, starting auxiliary heating to raise the temperature to a thermal shock buffer temperature, stopping auxiliary heating, introducing current to raise the temperature to a sintering densification temperature, preserving heat, stopping introducing current, starting auxiliary heating to carry out speed-controlled cooling, and cooling to a stress safety cooling threshold value, so as to obtain the high-temperature-resistant and high-pressure-resistant crucible. And transferring into a program control cooling system for cooling, removing the crucible, cleaning and drying to obtain the high-quality EB evaporation target material. The prepared target material has high density and mechanical strength, internal stress is relieved, good evaporation stability and film layer uniformity are shown in the electron beam physical vapor deposition process, and the finally obtained coating is compact in structure and has high hardness and high adhesive force.

The invention relates to a combustion type multi-target material flow heating furnace and process for petroleum processing, the heating furnace comprises a main heating furnace and an auxiliary heating furnace integrated with the main heating furnace, the main heating furnace is provided with a convection chamber and a radiation chamber which are arranged up and down, and a first material flow enters the radiation chamber to be heated to a first final temperature after being preheated by flue gas of the convection chamber; at least one second stream is heated in the radiation chamber and then enters at least one auxiliary heating furnace for heat compensation to a second final temperature, and flue gas of the auxiliary heating furnace is introduced into the convection chamber for waste heat recovery. The convection chamber is provided with a saturated steam heat exchange pipeline and an air preheating heat exchange chamber, and the upstream of the main heating furnace is integrated with a gas turbine or equipment meeting specific combustion conditions to achieve waste heat gradient utilization. Through integration of the main furnace and the auxiliary furnace and multi-target material flow graded heating, the heating efficiency is improved, the energy consumption is reduced, and the device is particularly suitable for synergistic heating of primary tower bottom oil and atmospheric tower bottom oil in crude oil distillation.

The utility model belongs to the technical field of sodium pipeline penetration piece heating, and particularly relates to an auxiliary heating device for a sodium pipeline penetration piece, which comprises a plurality of electric heating wires and a plurality of conduits, the conduits are hollow cylindrical structures, the electric heating wires are arranged in the conduits, and the conduits are peripherally arranged on the outer wall of the sodium pipeline penetration piece. The device uniformly heats the sodium pipeline penetration piece through the electric heating wire. According to the device, the conduit is mounted on the sodium pipeline penetration piece, so that the problem that the electric heating wire is difficult to mount at the penetration piece is solved. The guide pipe is made of 304 stainless steel, the contact position of the guide pipe and the pipeline is ground flat, the guide pipe is spot-welded on the outer wall of the pipeline through a pressing sheet, and the heat transfer efficiency is improved.