155results about How to "Improve thermal efficiency" patented technology

The present application relates to a kind of catalyst for hydrogen chloride oxidation preparation chlorine and its preparation method and application.The preparation method includes: after carrier substrate, metal tantalum powder, binder solution are mixed, extrusion forming is obtained green body, the green body is prepared composite carrier by calcination, the mass fraction of metal tantalum powder in the composite carrier is 5%-30%;Inorganic salt containing catalytically active element is made into solution and is placed in the composite carrier, and after drying, pre-product is obtained, and the pre-product is prepared catalyst by calcination.The preparation method described in the present application prepares high thermal conductivity composite carrier, not only effectively improves the heat conduction efficiency of catalyst, guarantees the effective activity of catalyst, but also guarantees the stability of composite carrier, thereby effectively prolongs the life of catalyst.

The invention relates to a low-fault-energy micro-twin synergistic deformation cobalt-based alloy and a preparation method thereof, and belongs to the field of cobalt-based high-temperature alloys. According to the alloy, on the basis of Co-Al-W, Ti and Ta which are smaller than or equal to 4 wt% are added according to calculation of a first principle, and the stacking fault energy is controlled to be-95 mJ / m < 2 > to-89 mJ / m < 2 > (0K). Aiming at the defect of insufficient high-temperature plasticity of the gamma '-phase strengthened cobalt-based alloy, an electronic structure is accurately regulated and controlled through a first principle, intrinsic stacking fault energy is designed to reach an optimal negative value interval, a micro-twin mechanism is activated, dislocation slippage and micro-twin coordination is realized, and the problem of sudden plasticity drop caused by single deformation mechanism (dislocation slippage leading) and grain boundary weakening of a traditional alloy is solved; the high-temperature strength and the plasticity are synchronously improved.

The utility model discloses a kind of rice powder microwave heating curing device and rice powder machine with the device, the curing device includes extruding component, it includes extruding cylinder, further include microwave heating assembly, microwave heating assembly is arranged on the outer wall of extruding cylinder.Microwave heating assembly includes magnetron;Extruding component includes machine cylinder component and extruding screw rod, machine cylinder component includes inner cylinder and extruding cylinder;The sidewall of the extruding cylinder is equipped with multiple microwave guide inlets;Inner cylinder is arranged in the extruding cylinder, and the feed inlet of inner cylinder is communicated with the feed pipe;Extruding screw rod is arranged in the inner cavity of the inner cylinder;Each guide inlet on extruding cylinder is equipped with a microwave heating assembly, and guide inlet is fixedly connected with the magnetron.This rice powder microwave heating curing device directly heats rice powder by microwave, is easy to control heating temperature, energy saving and environmental protection, can solve the problem that material is unevenly heated, heating time is long, energy consumption is big in rice powder heating curing process.

This invention relates to a temperature control device for a battery pack in a new energy bus, comprising a battery box, several module boxes arranged side-by-side in the middle of the inner side of the battery box, several battery cells arranged side-by-side in the module boxes, a heat spreader plate embedded in one inner wall of one side of the module box, several heat exchange tubes embedded inside the module box and abutting against the heat spreader plate, an insulation tank on one side of the outer side of the battery box, a heat exchanger on one side of the insulation tank, and an air conditioner on one side of the heat exchanger. The air conditioner is connected to the heat exchanger and the insulation tank respectively through refrigerant pipes. A water pump is installed at one end of the insulation tank. In winter or low-temperature environments, it collects heat from the air, heating the water in the insulation tank to hot water. In summer or high-temperature environments, it releases heat to the air through the heat exchanger and cools the water in the insulation tank to cold water, so that the battery cells can be maintained between 20 and 30 degrees Celsius in various temperature environments, so that the working efficiency of the battery cells can be optimized.

The utility model provides a waste calcium carbide remelting and upgrading conveying device, which belongs to the technical field of conveying devices, and comprises a crushing chamber, a rotator arranged in the crushing chamber, two first rotating shafts rotationally connected in the rotator, two crushers fixedly connected to the lower ends of the two first rotating shafts, and two second rotating shafts rotationally connected in the two crushers. The two first gears are fixedly connected to the circumferential surfaces of the two first rotating shafts, the gear ring is fixedly connected to the interior of the crushing chamber, and the first gears are meshed with the gear ring. Meanwhile, powder calcium carbide directly reaches the furnace bottom through the inside of the electrode and does not make contact with a furnace charge layer, current shunting is eradicated, waste products are directly added to the furnace bottom after being powdered and can be rapidly reacted and fused with semi-finished product calcium carbide, and electric energy consumption is greatly reduced.

This utility model relates to a crack-resistant, high thermal conductivity ceramic tile. It solves the problems of poor thermal conductivity and easy cracking and hollowing in existing ceramic tiles. It includes a ceramic tile body, with a wear-resistant and crack-resistant structural layer on the upper surface, an adhesive bonding assembly at the lower end, and a pressure-resistant mechanism in the middle layer of the ceramic tile body for connecting the wear-resistant and crack-resistant structural layer and the adhesive bonding assembly. An adhesive supply structure is provided between the pressure-resistant mechanism and the adhesive bonding assembly. The advantages of this utility model are: good thermal conductivity, less prone to cracking and hollowing, and a stable structure.

The utility model discloses a boiler flue gas recirculation device which comprises a boiler main body which is arranged on a base in a supporting mode through a supporting rod. The flue gas filtering assembly is arranged at the rear end of the boiler main body, the flue gas filtering assembly is connected with a flue gas outlet pipe of the boiler main body, and flue gas is filtered through the flue gas outlet pipe; the gas inlet pipe comprises a first inlet pipe and a second inlet pipe, the first inlet pipe is connected with the boiler main body, and the second inlet pipe is connected with a neutralizing seat on the base; a part of flue gas of the flue gas filtering assembly is neutralized by a neutralizing seat on the base, and is input into the boiler main body again to be combusted again; and the other part of flue gas is discharged through a discharge pipeline. According to the utility model, part of neutralized flue gas is re-introduced into the boiler for re-combustion, so that residual energy in the flue gas can be fully utilized, and the overall combustion efficiency and heat efficiency of the boiler are improved.

The application provides a copper-aluminum dissimilar metal resistance brazing method for a wind power generator, comprising the following steps: S1, temperature field regulation of partition resistance heating: a partition resistance heating mode of double-electrode independent power supply is adopted, current is respectively input to the copper side and the aluminum side for independent control, and the brazing interface temperature is controlled in the range of 580-620 DEG C; S2, interface diffusion control of nano nickel barrier layer: a nano-crystalline nickel barrier layer is prepared in advance on the surface of the copper matrix to be connected; S3, wetting and filling of zinc-based composite filler material: zinc-based composite filler material is used for brazing; S4, pressure-assisted brazing seam densification: axial pressure in the range of 0.5-2 MPa is applied during brazing; S5, atmosphere protection and surface activation: the brazing process is carried out under the condition of inert protective atmosphere. Through the cooperation of partition heating and nano nickel barrier layer, the strength of the copper-aluminum brazed joint is improved to more than 80% of the base material, and the contact resistance is reduced to 3 mu omega cm 2 The energy consumption of the single piece is reduced by 80%, and the qualified rate reaches more than 95%.

The utility model belongs to the technical field of capacitor aluminum shells, and discloses an efficient heat dissipation capacitor aluminum shell which comprises a hollow capacitor aluminum shell body, a sealing cover is installed at the lower end of the capacitor aluminum shell body, the sealing cover is made of aluminum materials, a capacitor body is installed in the capacitor aluminum shell body, and the capacitor aluminum shell body is internally provided with a heat dissipation device. The lower end of the capacitor body penetrates through the sealing cover and extends out of the sealing cover, and a heat dissipation device used for dissipating heat of the capacitor body is installed in the capacitor aluminum shell body. The capacitor has the effect of prolonging the service life of the capacitor body.

This invention discloses a method for coordinated optimization and low-carbon operation of a boiler-thermal power system in a thermal power plant, relating to the field of thermal power generation technology. The method includes: acquiring real-time fuel quality data, screening, drying, proportioning, and grinding the fuel to prepare qualified pulverized coal; dynamically adjusting the air-coal ratio based on unit load and combustion status, controlling furnace operating conditions and linking turbine parameters to maintain thermal system balance; collecting real-time equipment operating data, assessing remaining lifespan through a short-term memory network, and performing maintenance or parameter correction accordingly; recovering boiler and steam waste heat for plant heating, and coordinating the biomass co-firing ratio and pollutant capture parameters to achieve low-carbon emissions. This invention reduces coal consumption and heat loss by constructing a coordinated control system across the entire fuel-combustion-power chain; and achieves ultra-low emissions and a significant reduction in carbon emission intensity by combining equipment health management and waste heat low-carbon coupling technology.

The utility model relates to the technical field of coke oven doors, in particular to a reinforcing structure for a coke oven door, which comprises an oven door, a reinforcing component and a connecting plate, one end of the connecting plate is fixedly connected with the oven door, and the other end of the connecting plate is connected with an oven box through bolts. A mesoporous silica heat insulation layer is arranged on the rear side of the furnace door, and the reinforcing assembly comprises a U-shaped frame, a limiting cover, a limiting rod, a rotating frame, a worm gear and a worm. By means of the design, the sealing performance and the heat insulation performance between the furnace door and the furnace box are improved, heat loss and gas leakage are effectively reduced, the deformation problem of the furnace door in the high-temperature environment can be relieved, and therefore the service life of equipment is prolonged, and production efficiency and safety are improved.

The utility model discloses a lead-free environment-friendly copper alloy bar for a valve, which comprises a lead-free copper alloy bar body, a hollow hole is arranged at the center of the lead-free copper alloy bar body, a plurality of inclined planes are arranged on the surface of the lead-free copper alloy bar body at equal intervals, an anti-corrosion paint layer is arranged on the surface of the lead-free copper alloy bar body, and the anti-corrosion paint layer is arranged on the surface of the lead-free copper alloy bar body. The lead-free copper alloy bar has the advantages that through the arrangement of the hollow holes, the weight of the lead-free copper alloy bar body is reduced, meanwhile, enough strength is kept, meanwhile, resistance and thermal resistance are reduced, and the electric conduction efficiency and the heat conduction efficiency are improved; the copper alloy material is low in cost, low in cost and free of lead and chromium, meets international environmental protection standards, reduces potential hazards to the environment and human bodies, keeps high strength, high toughness and good machinability of a traditional copper alloy, and is suitable for manufacturing various valve parts.

This application discloses a heating control system for a rice cooker, belonging to the field of household appliance technology. It overcomes the shortcomings of existing three-dimensional heating rice cookers, which suffer from high costs while maintaining cooking performance. The technical solution to this problem is a rice cooker comprising a pot body, a lid, and a heating device. The lid fits onto the pot body to form a cooking cavity. The pot body includes an outer pot with a receiving cavity and an inner pot located within the receiving cavity. A first IH electromagnetic heating component is located at the bottom of the receiving cavity, and a second IH electromagnetic heating component is located on the side of the receiving cavity. The lid has an electric heating wire assembly located at the top of the cooking cavity. This application primarily aims to achieve both good cooking and heat preservation performance while optimizing costs.

The invention discloses a diamond filler for chip heat dissipation and a preparation method thereof, and belongs to the technical field of heat conduction fillers, the diamond filler comprises the following raw materials by weight: 90-100 parts of pretreated functional diamond, 4-8 parts of modified carbon nanotubes and 15-25 parts of modified hexagonal boron nitride nanoparticles; the diamond filler for chip heat dissipation is prepared by mixing pretreated functional diamond, modified carbon nanotubes and modified hexagonal boron nitride nanosheets, adding the mixture into N-methyl pyrrolidone, adding 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride and N-hydroxysuccinimide, and carrying out a reaction. According to the mode, micro-grinding rounding and dopamine functionalization of the diamond, carbon nano tube modification and hexagonal boron nitride modification have a synergistic gain effect on the filler heat conductivity, composite material heat conductivity and composite material CTE of the prepared diamond filler.

The utility model discloses a kind of straw preparation biomass fuel forming die, including the lower mould body being installed on base, the lower mould body top center is provided with mould cavity, the inner wall of mould cavity is sequentially provided with hardening layer and elastic stripping layer, the lower mould body is embedded with mesh heating element and temperature sensor, the lower mould body upper is provided with upper mould body, the upper mould body is installed in the lower of lifting seat, the lifting seat top is connected with hydraulic cylinder, the bottom of upper mould body is provided with pressing seat, detachably installed with wear-resistant bushing in the accommodating groove of pressing seat outer ring, the outside of wear-resistant bushing is provided with mounting hole, the bolt is screwed in the mounting hole. The utility model structure design scientific and reasonable, realizes the independent replacement of easy-wearing component, reduces maintenance cost, prolongs mould service life;While using the low adhesion characteristic of elastic stripping layer and the wear resistance characteristic of hardening layer, solve the problem that fuel is easy to adhere to mould cavity when traditional mould stripping, breakage rate is high.

This invention relates to a rotary high-pressure engine, comprising: a stator mechanism including two stators and a track formed between the two stators; a rotor rotatably disposed between the two stators, including a plurality of cylinders and a plurality of vent holes communicating with the interior of the plurality of cylinders; a spindle passing through the stator mechanism and the rotor; a plurality of pistons movably housed in the plurality of cylinders, and each having a piston shaft axially protruding from the plurality of slots and moving along the track; and a plurality of gas covers, each radially movable and elastically restoringly disposed in the stator mechanism and covering the rotor; wherein high-pressure gas can be introduced into the plurality of cylinders to push the plurality of pistons, and after the power stroke, the movement of the plurality of pistons can discharge the high-pressure gas in the plurality of cylinders.

A method of forming fluid flow channels for a heat exchanger core, the method comprising additively manufacturing the channels (1, 2) such that each channel includes a straight axial fluid path portion (A) extending from one end (30) of the channel to the other (40) and that the cross-sectional shape of the channel varies along its length to form curved contact surfaces for the fluid as it flows along the channel, while keeping the cross-sectional area constant along each channel.

The invention discloses premixed polyether polyol for continuous production of LNG (liquefied natural gas), polyurethane foam and a preparation method of the premixed polyether polyol. The premixed polyether polyol comprises the following raw materials in parts by weight: 80-105 parts of composite polyol; 3-5 parts of a nano reinforcing agent; 2-4 parts of a composite catalyst; 2-4 parts of a foam stabilizer; 20-30 parts of a physical foaming agent; 1.0-2.0 parts of a chemical foaming agent; and 20-30 parts of a flame retardant. The polyurethane foam comprises the combined polyether and polymerized diphenylmethane diisocyanate, and is prepared by mixing the combined polyether and the polymerized diphenylmethane diisocyanate according to a certain proportion. According to the low-temperature-resistant, low-thermal-conductivity and high-strength polyurethane foam for the LNG, the combined polyether reacts with the isocyanate, and through the synergistic effect of the high-functionality polyether polyol, the polyester polyol and the nano reinforcing agent, the low-temperature-resistant, low-thermal-conductivity and high-strength polyurethane foam for the LNG can be continuously produced; the density is uniform; the heat conductivity coefficient is low; and the strength is high.

The utility model discloses a kind of perforating device of bundled straw biomass fuel, including frame, and frame is provided with perforating device, and perforating device includes linear power mechanism, mounting seat and punch assembly, the end surface of mounting seat is connected with linear power mechanism, and the other end surface is provided with punch assembly;The bottom of frame is provided with the positioning assembly for positioning straw bundle, and linear power mechanism drives punch assembly to carry out punching operation to the straw bundle after positioning. Linear power mechanism includes any one in hydraulic cylinder, cylinder, electric cylinder, and hydraulic cylinder is connected with hydraulic pump group and control valve group, cylinder is equipped with gas source equipment and solenoid valve, electric cylinder is electrically connected with servo driver and controller. The utility model punches in straw bundle, obtains straw bundle with air hole, increases airflow flow in straw bundle, effectively improves the combustion efficiency of whole straw bundle, can effectively reduce the volume and structure of combustion furnace, reduces combustion furnace investment cost.

This invention relates to the field of freeze-drying technology, specifically to an intelligent vacuum freeze dryer and its usage method. The dryer includes a main unit and a pre-freezing vacuum chamber within it, a shelf placed inside the pre-freezing vacuum chamber, the shelf having an internal cavity and a main gas inlet at its bottom for gas to enter the internal cavity; a carrying tray with multiple evenly arranged internal components for storing materials, the tray having multiple planar grids and heating elements for releasing heat, multiple push rods for moving materials within the planar grids, and an adjustment component for adjusting the position of the push rods according to different usage environments; and side rotating columns with multiple evenly rotatable components connected to the sidewalls of the carrying tray, each side rotating column having multiple exhaust ports, and the carrying tray having an efficiency-enhancing component for driving the side rotating columns.

This utility model discloses an inner flame vortex burner. It includes a burner and large flame ejector tubes. The burner is an irregularly shaped shell with a centrally protruding annular cone shape. Large flame ejector tubes are provided on both sides and connected to it, forming a double-ejector structure. The central annular cone surface has a protruding short flame groove and a concave long flame groove. The inner ring of the central annular cone has a protruding upper flame stabilizing groove and a concave lower flame stabilizing groove. The bottom of the central annular cone has two segmented grooves and two segmented ribs. A connecting hole is provided on the outer edge, and two positioning grooves are provided at the outlet of the large flame ejector tubes. This utility model features a simple structure, strong ejection force, high heat load, high combustion thermal efficiency, material saving, quick processing, and aesthetically pleasing combustion flame.

The utility model relates to a car technical field especially, it is a kind of central hand box refrigeration structure, including central hand box, condenser pipe, semiconductor refrigeration module, shroud and heat dissipation pipeline, wherein, central hand box inside is equipped with refrigeration space;Condenser pipe is embedded in the lateral wall of refrigeration space, and its both ends are communicated with the refrigerant circulation pipeline of car air conditioning system by pipeline;Semiconductor refrigeration module cold end is embedded in the lateral wall of refrigeration space, and hot end is placed in the inside of shroud;Shroud is fixed in the inside of central hand box;One end of heat dissipation pipeline is communicated inside shroud, and the other end is communicated to engine cabin, and exhaust fan is embedded in the inside of heat dissipation pipeline;The utility model proposes a kind of central hand box refrigeration structure, it is additionally equipped with semiconductor refrigeration module as auxiliary cold source, can carry out cold supplement to refrigeration space under the condition that vehicle is temporarily extinguished, effectively inhibits the temperature rise in refrigeration space, and reduces temperature fluctuation, guarantees the continuity and stability of refrigeration effect.

The application discloses a boiler waste heat recycling device and relates to the technical field of waste heat utilization and environmental protection, which comprises a boiler module and a waste heat recycling module; the waste heat recycling module is used for recycling the heat in flue gas after fuel combustion in the boiler module and recycling the heat for fuel combustion; the waste heat recycling module comprises a protective shell, and a first heat conduction component, a second heat conduction component, a heat exchange component, an air injection component and a pressure increasing component are installed in the protective shell. The application has the advantages that the flue gas waste heat is recycled in two stages, the first stage recycling is used for heating air entering a combustion chamber, reducing invalid heat consumption and improving combustion efficiency, and the second stage recycling is used for increasing the air pressure entering the combustion chamber, so that the contact area of fuel and air is expanded, fuel combustion is more sufficient, the waste heat recycling rate is higher, and the utilization effect is more obvious.

This invention discloses a powder coating and its preparation method, belonging to the field of powder coating technology. The powder coating comprises a composite filler with a core-shell-whisker structure. The composite filler includes: a core layer, which is a one-dimensional inorganic thermally conductive material; an intermediate layer, which is composed of polydopamine and coated on the outer surface of the core layer; and an outer shell layer, which is composed of a reactive elastomer and chemically grafted onto the outer surface of the intermediate layer. This invention also discloses the preparation method of the powder coating and its application in electrical insulation components. By constructing a core-shell-whisker structure composite filler and using polydopamine as the intermediate layer to chemically graft reactive elastomer onto the surface of a one-dimensional inorganic thermally conductive material, this invention achieves a synergistic improvement in mechanical properties, thermal conductivity, and insulation properties, and endows the coating surface with self-healing scratches.

The utility model discloses a composite lock catch geothermal floor which comprises a floor body, a heat conduction plate is fixedly embedded in the bottom of the floor body, a fixing frame located above the heat conduction plate is fixedly installed in the floor body, and a plurality of partition plates are integrally arranged in the fixing frame. Heat conducting rubber is filled between the adjacent partition plates, a mounting through hole is formed in the middle of the heat conducting rubber, a telescopic sleeve located in the mounting through hole is integrally arranged at the top of the heat conducting plate, and a telescopic column is slidably connected to the top of the telescopic sleeve in a penetrating mode; a heat dissipation plate located at the top of the heat conduction rubber is fixedly installed at the top of the telescopic column, and a jacking spring is arranged at the bottom of the telescopic column. Heat is conducted into air through the top of the floor body through the heat dissipation plate, the heat is rapidly conducted to the upper surface of the geothermal floor, and the geothermal floor has the advantages of being short in heat conduction path, rapid in heating and high in heat efficiency.

This utility model discloses a mass flow meter for measuring high-temperature liquid substances, belonging to the field of instrumentation. The mass flow meter of this application is mainly used for measuring high-temperature liquid substances. The measuring tube provides a channel for the fluid to be measured; a heating tube is spirally wrapped around the measuring tube to maintain the temperature of the measuring tube within a preset range, allowing the fluid to flow through the measuring tube. By employing a spiral heating tube surrounding the measuring tube for insulation, the contact area with the measuring tube can be maximized, improving thermal conductivity and keeping the fluid to be measured in a molten state, effectively preventing the fluid from cooling and solidifying inside the measuring tube, thus avoiding blockage. Compared with conventional insulation jackets, the spiral heating tube structure of this application has higher thermal conductivity, enabling more uniform heating of the measuring tube and ensuring that the fluid to be measured maintains appropriate fluidity throughout the measurement process, thereby guaranteeing the normal metering function of the flow meter.

The utility model relates to dimethyl silicone oil production and processing technical field especially relates to a dimethyl silicone oil mixed type reation kettle with heat exchange function. Including reation kettle body and first sealing plate, the first sealing plate top is fixedly arranged with push rod motor, the output of push rod motor is through first sealing plate, and the output bottom fixedly connected with electric heating bin, and electric heating bin bottom is fixedly arranged with second sealing plate, the electric heating bin is built -in and is through second sealing plate's thermocouple, and thermocouple bottom side fixedly connected multiple heat conduction bin body, the heat conduction bin body is built -in and has heating fluid. The utility model solves the technical problem that is: in dimethyl silicone oil production procedure, heat exchange efficiency is limited, and product quality is influenced.

The invention relates to the technical field of clothes treatment equipment, in particular to a drying control method of clothes treatment equipment, electronic equipment and the clothes treatment equipment. The clothes processing equipment comprises a plurality of washing drums which operate independently, a drying air supply assembly and a water injection assembly. An air outlet is formed in the bottom of each washing drum, and an extending air duct is arranged corresponding to each washing drum; the drying control method comprises the steps that under the condition that at least one washing drum starts a drying program in a controlled mode, the current operation states of the other washing drums are detected, and the current operation states comprise the idle state and the non-idle state; and under the condition that the current operation state shows that the non-drying cavities in the idle state exist in the other washing drums, the water injection assembly is controlled to inject washing water into the washing drums of the non-drying cavities in the idle state. The drying efficiency and the drying effect of the clothes processing equipment can be improved.

The utility model relates to the technical field of elasticizers, and discloses an integrated elasticizer for compounding nylon yarns and cotton silks, which comprises a plurality of creels arranged at intervals in an array and a plurality of winding creels arranged at intervals in an array, and a high-temperature heating box and a twister are arranged between the creels and the winding creels. Nylon yarn penetrates through the high-temperature heating box to be heated, is twisted on the twister to form certain elasticity and then is rewound to the yarn winding frame, two heating rollers rotating oppositely are arranged in the high-temperature heating box, and the nylon yarn is wound around the heating rollers in an S shape to be heated. Compared with a hot air heating mode in the prior art, the structure is higher in heat efficiency, lower in heat energy loss, good in heating effect, high in temperature control accuracy and not prone to being affected by the outside and causing too large temperature fluctuation.

The application discloses a selective catalytic reduction flue gas heating device, which comprises a flue gas transmission main line and a combustion furnace chamber, the output end of the combustion furnace chamber is inserted into the flue gas transmission main line, a furnace chamber collector and a burner are arranged in the combustion furnace chamber, a control valve is arranged at the input end of the flue gas transmission main line, a main line collector is arranged in the flue gas transmission main line, and the heating device further comprises a collection system, a data analysis system, a control module and a heater. The selective catalytic reduction injection pipe is directly connected to the obliquely-inserted combustion furnace chamber, is used for direct combustion of the burner, the high-temperature flue gas generated by combustion is mixed with the flue gas of the main line of the internal combustion engine to improve the flue gas temperature of the internal combustion engine, the prepared flue gas heating device is compact in structure, convenient to arrange, simple in preparation process, low in cost, convenient to maintain, can adjust the power of the burner according to different exhaust pipe diameters, and is high in thermal efficiency and economic benefits.