63 results about "Regenerative cooling" patented technology

The invention belongs to the field of engines, and particularly relates to a dual-fuel regenerative cooling system and method. The cooling system comprises a combustion chamber, an ammonia supply device and a kerosene supply device; three layers of cooling flow channels are arranged in the wall face of the combustion chamber, the output ends of the three layers of cooling flow channels are arranged in the combustion chamber, and the three layers of cooling flow channels comprise a first cooling channel, a second cooling channel and a third cooling channel which are sequentially arranged from inside to outside. The ammonia supply device is connected with the input ends of the first cooling channel and the second cooling channel; the kerosene supply device is connected with the input ends of the third cooling channel and the second cooling channel; and ammonia or kerosene is introduced into the second cooling channel in a time-sharing manner. Through the three-layer cooling channel design and the fuel switchable function, the effects of fuel cooling, thermal protection, cracking hydrogen production and combustion organization are improved at the same time.

The invention provides a regenerative cooling channel structure and an engine, and relates to the technical field of engine thermal protection, the regenerative cooling channel structure comprises a first channel and a second channel which are arranged between the outer wall face and the inner wall face of a combustion chamber at intervals in the radial direction, and an inlet and an outlet of the first channel are located at the inlet end and the outlet end of the combustion chamber correspondingly; an inlet and an outlet of the second channel are located at the outlet end and the inlet end of the combustion chamber respectively. An outlet of the first channel communicates with an inlet of the second channel, and a coolant flows into the first channel through the inlet of the first channel, then flows into the second channel through an outlet of the first channel and the inlet of the second channel in sequence and then flows into the combustion chamber through an outlet of the second channel. The flowing direction of the coolant in the first channel is consistent with the flowing direction of gas in the combustion chamber to form downstream cooling, the flowing direction of the coolant in the second channel is opposite to the flowing direction of the gas in the combustion chamber to form countercurrent cooling, the flowing speed and flow distribution of the coolant are improved, the heat transfer deterioration phenomenon is restrained, and the cooling effect is effectively improved.

The invention relates to the technical field of waste gas recycling, in particular to a refining agent regeneration method and system. The refining agent is used for removing impurities in polyolefin hydrocarbon raw materials, and the regeneration method comprises the following steps: sequentially and repeatedly purging and cooling the polyolefin refining agent by using nitrogen to respectively obtain first regeneration cooling exhaust gas and a purging refining agent; sequentially carrying out liquid separation and first pressure swing adsorption on the first regeneration exhaust gas to obtain a first hydrocarbon adsorption material; pressurizing and displacing the purging refining agent by using a polyolefin raw material to respectively obtain mixed exhaust gas and a regenerated refining agent; the mixed exhaust gas is subjected to liquid separation and second pressure swing adsorption in sequence, and a second hydrocarbon adsorption material is obtained; and desorbing the first hydrocarbon adsorption material and the second hydrocarbon adsorption material to obtain the polyolefin recycled material. According to the regeneration method, a three-stage coupling separation system of purging regeneration, liquid separation and pressure swing adsorption is constructed, and compared with a traditional thermal regeneration method, the recovery rate of hydrocarbon raw materials in regenerated exhaust gas of the refining agent can be increased only through pressure swing adsorption.

The invention relates to the technical field of aero-engine combustion chamber design, in particular to a multi-layer mixing section structure of a pulse detonation combustion chamber. The multi-layer mixing structure is characterized in that the multi-layer mixing structure comprises a multi-layer mixing section arranged in a detonation pipe, an oil supply pipe is arranged on the detonation pipe, the multi-layer mixing section comprises an inner mixing ring and an outer mixing ring, and the inner mixing ring and the outer mixing ring form three Venturi type circulation channels through connecting structures; and a fuel nozzle connected with an oil supply pipe is arranged at the axis of the inner mixing ring. By means of the multi-layer mixing section, incoming flow air is divided into multiple jet flows, the mixing efficiency of fuel oil and air is improved, the mixing uniformity of the fuel oil and air is remarkably improved, and the mixing distance is shortened. Meanwhile, according to the regenerative cooling structure, a fuel oil channel is designed in a multi-layer mixing section, recycling of the wall face of the pulse detonation combustion chamber is achieved, meanwhile, the oil injection temperature is increased, the fuel oil and air mixing effect is improved, and the combustion efficiency is improved.

The invention relates to the technical field of heat recovery, in particular to a heat energy recovery management method, device, equipment and medium for a compression heat regeneration drying machine. The method comprises the steps that when high-temperature and high-humidity compressed air generated by an air compressor passes through a switching valve, an air guiding instruction is triggered; high-temperature and high-humidity compressed air is respectively guided to a first drying tower in an adsorption mode and a second drying tower in a regeneration mode; in the regeneration process of the second drying tower, preheating desorption is conducted on the drying agent in the second drying tower through high-temperature compressed air flowing through the first drying tower, and high-temperature regenerated gas is generated; the high-temperature regenerated gas is introduced into a regeneration cooler and exchanges heat with a cooling medium, so that the high-temperature regenerated gas is cooled and condensed, and liquid water is separated out; and the cooling medium after heat recovery is conveyed to a heat utilization unit, heat energy recycling is achieved, and operation parameters of the air compressor and the drying tower are coordinated in real time so as to maintain system pressure balance. The effect of improving the heat recovery efficiency during compression heat regeneration is achieved.

The utility model provides a system for increasing the temperature of a dry quenching calcium-based dry desulfurization agent, which belongs to the technical field of dry quenching desulfurization and comprises a dust removal system, a desulfurization system, an electric tracing band, a heat exchanger and a compressed air pipeline, the dust removal system comprises a dust removal cover, a low-temperature dust removal pipeline, a high-temperature dust removal pipeline, a heat storage cooler, a bag type dust collector, a dust removal fan and an exhaust funnel, the dust removal cover is arranged at the discharge port of the dry quenching body, and the dust removal cover, the low-temperature dust removal pipeline, the heat storage cooler, the bag type dust collector, dust removal air and the exhaust funnel are sequentially connected; the two ends of the high-temperature dust removal pipeline are respectively connected with the dry quenching body and the heat storage cooler; according to the system, when the calcium-based dry desulfurization system is under the working condition in winter, the purposes of enhancing the desulfurization effect, reducing the content of a desulfurizing agent and reducing the operation and maintenance cost are achieved.

The invention discloses an engine DPF regeneration cooling stage exhaust temperature safety control method and system, and relates to the technical field of diesel engine aftertreatment system control. According to the technical key points, linear controllable adjustment of exhaust flow is achieved through collaborative composite slope control, high-temperature heat stored in parts such as DOC, DPF and SCR of an aftertreatment system is released in order along with stable airflow and taken away at a constant speed, and severe temperature fluctuation and high-frequency thermal shock caused by sudden change of cold and hot airflow in the prior art are completely avoided; irreversible faults such as shedding of an SCR carrier catalytic coating, aging failure of a temperature sensor probe and thermal deformation air leakage of a sealing gasket are effectively avoided, and the thermal aging rate of a post-processing core component is reduced, so that the service life of the whole machine of a post-processing system is prolonged, the long-term operation reliability of the post-processing system is improved, and meanwhile, the equipment maintenance cost and shutdown loss of a terminal user are reduced.

The invention relates to a thermodynamic component combined test, and provides a thermodynamic component combined test system and a test method in order to solve the problems that an afterburning cycle engine gas generator is large in propellant mass flow deviation, large in combustion product pollution, high in hot test run cost and the like. The test system comprises a fuel gas generator, a gas venturi tube and a thrust chamber which are coaxially connected; a first component access port is formed in the top of the fuel gas generator, a second component access port is formed in the side face of the fuel gas generator, the first component access port and the second component access port are used for accessing a first component propellant and a second component propellant respectively, and a plurality of fuel gas performance monitoring ports are formed in the side face of the gas venturi tube; a second component regeneration cooling access port is formed in the side surface of the outlet end of the thrust chamber and is used for regenerating and cooling a second component propellant and then accessing the second component propellant into the thrust chamber; the test method based on the test system can effectively improve the efficient, reliable and environment-friendly hot test run test between the fuel gas generator and the thrust chamber.

The present application relates to the technical field of aerospace engine, in particular to a liquid fuel engine thrust chamber needle bolt head regenerative cooling structure, comprising: a thrust chamber and a needle injection injector, the injector shell of the needle injection injector is arranged in the thrust chamber from the top of the thrust chamber, and the injector shell is located in the thrust chamber, at least one week main injection hole is arranged on the radial of the injector shell, the annular gap is formed between the injector shell and the top shell of the thrust chamber, and the end of the injector shell is provided with an inner recess structure in the thrust chamber; The first cooling flow channel and the second cooling flow channel are arranged in the injector shell above and below the main injection hole, and the outlet of the second cooling flow channel is connected with the rotational flow tangential hole; wherein, the liquid propellant in the propellant combination is injected into the injector shell, and the annular gap between the injector shell and the top shell of the thrust chamber is used for injecting another propellant in the propellant combination. The present application improves the combustion efficiency of the thrust chamber, and improves the specific impulse and the thrust-to-weight ratio of the engine.

The invention discloses a dual-mode low-emission combustion chamber matched with a standing vortex evaporation tube and a method. The combustion chamber comprises a multi-channel diffuser, an inner casing, an outer casing, a flame tube and a high-energy ignition electric nozzle. The flame tube comprises an outer ring wall plate, an inner ring wall plate, a single-concave-cavity structure, a cap cover, a cross flame supporting plate and M * N evaporation pipes. The trapped vortex combustion chamber is combined with two low-emission advanced combustion organization technologies of RQL and LPP, different combustion modes are adopted in different states or different areas in the whole flight cycle so as to adapt to the oil-gas ratios in different states, and the pollutant emission in the whole working condition range is reduced. And meanwhile, the M * N evaporation pipes can also be used for solving the problem that multiphase fuel oil is difficult to supply normally under the aviation kerosene phase state change caused by fuel oil regenerative cooling.

The application discloses a bidirectional gradient dot matrix sandwich regenerative cooling channel and a parameterized design method thereof, and belongs to the technical field of thermal protection of liquid rocket engines. The cooling channel comprises an outer wall, an inner wall and a dot matrix sandwich layer arranged between the outer wall and the inner wall. The dot matrix strut has a flow direction gradient along the flow direction of the cooling working medium and a normal gradient along the normal direction of the wall surface. The parameterized design method comprises the following steps: S1, constructing a normalized heat flow factor; S2, establishing a flow direction gradient strut diameter distribution; S3, determining a minimum strut diameter in a low heat flow area and checking; S4, constructing a normal gradient and determining a hot wall end diameter and a draft angle distribution; and S5, determining a cold wall end diameter and checking. The method can match the strut heat exchange capacity with the non-uniform heat flux density distribution on the gas side, and form normal gradient struts with thick hot wall ends and thin cold wall ends, so that the hot spot temperature is reduced, the temperature uniformity is improved, the pressure drop increase of the channel is controlled, and the lightweight advantage is maintained.

The utility model discloses a cold accumulation type cooling device, which belongs to the technical field of cooling equipment, and comprises a refrigeration module, an inner circulation module, a temperature control circulation module and an outer circulation module, the refrigeration module can introduce a refrigerant into an evaporator to absorb heat; the inner circulation module comprises a first pump body and a cold storage box, and the first pump body can supply cold storage fluid in the cold storage box to the evaporator; the temperature control circulation module comprises a second pump body and a first heat exchanger, the first heat exchanger is provided with a first heat exchange flow channel and a second heat exchange flow channel, the second pump body can introduce cold storage fluid into the first heat exchange flow channel, and the cold storage box can collect the cold storage fluid flowing through the evaporator and the first heat exchanger; the outer circulation module comprises a buffer box and a third pump body, the second heat exchange flow channel is connected with the buffer box, the third pump body can supply cooling liquid of the buffer box to the load end, the cooling liquid flowing through the load end is sequentially led into the second heat exchange flow channel and the buffer box, and the electric power and cost can be reduced.

Systems and methods for use in multi-stage regenerative cooling cycles that leverage an ejector as the motivating force to sub-cool a single refrigerant in a multi-stage regenerative cooling cycle. The multi-stage regenerative cooling cycle is more efficient than conventional muti-stage cooling cycles due to the placement of the ejector, which enables each stage to operate at a higher evaporating pressure and lower compression ratio.

The invention relates to the technical field of hydrogen purification, in particular to a multi-dryer alternative selective hydrogen purification system, which comprises an impurity removal assembly, a gas-water separation component, a deoxidization piece connected with the gas-water separation component, and a hydrogen cooling piece connected with the deoxidization piece; a plurality of groups of drying assemblies are arranged, and each group of drying assembly comprises a regeneration cooling piece connected with the hydrogen cooling piece and a drying part connected with the regeneration cooling piece; and the switching assembly is arranged between the hydrogen cooling piece and the multiple sets of drying assemblies, different working states formed by the multiple sets of drying box bodies are utilized, so that different levels of operation is conducted on hydrogen purification, and the hydrogen purification efficiency and the purification yield are improved.

The invention belongs to the technical field of thermal protection of aircrafts, and particularly discloses a novel regenerative cooling channel with a longitudinal embedded corrugated plate and an application of the novel regenerative cooling channel with the reinforced cooling, the novel regenerative cooling channel comprises a regenerative cooling channel body and the corrugated plate, and the corrugated plate is longitudinally arranged in the regenerative cooling channel body. And the corrugated plate is perpendicular to the heating surface of the regeneration cooling channel and divides the interior of the regeneration cooling channel into two independent sub-channels. Through reasonable construction and layout of the corrugated plates, mixing between fluids and convective heat exchange between the fluids and the heating wall surface can be enhanced, a thermal boundary layer is periodically destroyed, and heat transfer resistance is reduced, so that the heat transfer capacity of a regenerative cooling system is effectively improved, and the temperature of high-temperature parts of an aircraft is effectively reduced.

The application belongs to the field of engine cooling, and particularly relates to a dual-working fluid regenerative cooling system and method. The dual-working fluid regenerative cooling system comprises a dual-working fluid regenerative cooling module, an ammonia cracking product separation module and an energy comprehensive utilization module. The dual-working fluid regenerative cooling module comprises an ammonia supply device, a kerosene supply device and a double-layer regenerative cooling channel. The ammonia cracking product separation module comprises a membrane separator and a pressure swing adsorption unit. The energy comprehensive utilization module comprises a power generation device connected with the nitrogen-rich gas outlet. The application builds a closed-loop system integrating efficient thermal management, stable combustion and energy efficient utilization by means of ammonia and kerosene dual-working fluid cooling, ammonia cracking hydrogen production and nitrogen-rich gas power generation.

The invention relates to the field of ramjet kerosene shunting and regenerative cooling, and discloses a ramjet regenerative cooling kerosene shunting device which comprises an annular piece, a plurality of kerosene flow channel inlets, a plurality of kerosene flow channel outlets formed in the other side of the annular piece, an annular confluence groove and a plurality of flow channels formed in the annular piece. The annular confluence groove is communicated with an outlet of each kerosene flow channel through the shunting channel; wherein the shunting channel comprises a convergence section, a throat channel and an expansion section, the convergence section comprises a rapid convergence section and a saturation pressure section, and the expansion section comprises a primary expansion section, an equal-diameter channel and a secondary expansion section. According to the invention, through the arrangement of the shunting channel, when kerosene passes through the convergence section of the shunting channel, the fluid speed is accelerated, the pressure is reduced, and the static pressure at the throat part is reduced to the saturated vapor pressure, the liquid is sharply vaporized, so that the flow of the kerosene after passing through the expansion section is kept stable, and the kerosene flow in each cooling channel connected with the downstream is uniform and kept stable; the regeneration cooling effect of each area is ensured.

This application provides an in-situ injection regeneration cooling system for ammonia-fueled combustion chambers, including a combustion chamber, a fuel supply assembly, and a control module. The combustion chamber includes a flame tube and a cooling channel. The fuel supply assembly includes a liquid ammonia storage tank, a direct injection pipeline, and a regeneration cooling pipeline. The direct injection pipeline is connected to the nozzle of the flame tube, and the regeneration cooling pipeline is connected to the cooling channel. The cooling channel is connected to the flame tube. A first flow regulating device is installed on the direct injection pipeline, and a second flow regulating device is installed on the regeneration cooling pipeline. A temperature monitoring device is installed in the area with the highest heat load in the cooling channel. The control method is that the control module adjusts the second flow regulating device according to the temperature obtained by the temperature monitoring device to regulate the cooling flow rate into the cooling channel. The control module calculates the difference between the total fuel flow rate and the cooling flow rate entering the flame tube according to the set total fuel flow rate and cooling flow rate, and controls the first flow regulating device according to the difference to regulate the injection flow rate into the flame tube.

The invention relates to the technical field of thermal protection of aerospace propulsion systems, and discloses a method for improving a quasi-critical zone in a methane regenerative cooling process and an engine, and the method comprises the following steps: calculating a quasi-critical temperature Tpc under a real-time pressure based on the real-time pressure of a methane coolant fluid at an outlet of a regenerative cooling channel; according to the quasi-critical temperature, setting a quasi-critical dangerous interval which indicates that the methane coolant fluid is prone to biological violent change; when the real-time temperature of the methane coolant fluid at the outlet of the regeneration cooling channel is in a quasi-critical dangerous interval, the inlet flow of the methane coolant fluid is instantaneously increased in a gradient manner, and a low-density thermal boundary layer of the near wall surface of the regeneration cooling channel is destroyed by using an instantaneously enhanced convective heat transfer coefficient and fluid momentum; methane coolant fluid is accelerated through a pseudo-critical region in the regenerative cooling channel. According to the invention, the physical property dramatic change influence of the fluid in a quasi-critical region is improved by adopting a mode of increasing the inlet flow or bypass flow of the channel in a gradient manner.

The invention relates to the technical field of combustion ignition devices of gas turbine engines using liquid fuel, in particular to a multi-fuel torch igniter with regenerative cooling. The igniter is characterized by comprising an igniter shell, a semiconductor ignition electric nozzle, an oxygen connecting nozzle, a fuel connecting nozzle and a pressure connecting nozzle are arranged on the igniter shell, an igniter combustion chamber is arranged in the igniter shell, and a fuel spraying hole and a liquid collecting cavity are formed in the igniter shell corresponding to the igniter combustion chamber. A regeneration cooling channel is arranged in the wall of the igniter shell; according to the torch igniter, the igniter shell with the regenerative cooling structure is adopted, the fuel temperature is increased while the fuel is used for cooling the igniter shell, oil-gas mixed combustion in the torch igniter is facilitated, and the torch igniter can be repeatedly used for a long time. And the ignition performance of the combustion chamber of the gas turbine engine is improved, so that the gas turbine engine is quickly and reliably ignited and started, and the ignition boundary of the engine is improved.

The invention discloses a flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption, and belongs to the technical field of flue gas purification. According to the flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption, a mounting plate body with a circular groove body is arranged in a flue gas purification box, and an activated carbon adsorption ring capable of rotating at a low speed is mounted in the groove body; the interior of the activated carbon adsorption ring is circumferentially divided into an adsorption area, a heating area and a cooling area which are not communicated with one another; an air inlet end cover and an air outlet end cover are symmetrically arranged above the two ends of the adsorption ring, the interiors of the two covers are divided into a heating cavity and a cooling cavity through longitudinal partition plates respectively, and the two covers are correspondingly communicated with a heat / cold inlet pipe and a heat / cold outlet pipe. The problem that an existing activated carbon fiber adsorption device is interrupted in operation due to the fact that regeneration needs to be stopped for replacement is solved. Adsorption, regeneration and cooling are synchronously operated through rotary partition design, and the system does not need to be shut down.

This invention relates to the field of thermal protection technology for hypersonic vehicle propulsion systems, and proposes a method for analyzing the flow and heat transfer characteristics of microchannels with different truncated fin configurations. The steps include: constructing regenerative cooling microchannels; introducing supercritical hydrocarbon fuel into the regenerative cooling microchannels and applying wall heat flux to the heated section; setting at least four different truncated fin arrangement configurations; obtaining the flow and heat transfer parameters of the microchannels under each configuration through numerical simulation; evaluating the ability of each configuration to suppress heat transfer degradation of supercritical hydrocarbon fuel, the degree of improvement in thermophysical stratification, and the overall heat transfer performance based on the flow and heat transfer parameters; and selecting the optimal truncated fin arrangement configuration based on the evaluation results. This invention successfully realizes the transformation from a state dominated by natural convection prone to heat transfer degradation to a state of efficient forced convection heat transfer, improving the thermal reliability of the regenerative cooling system and providing an important reference for topology optimization of high-performance aero-engine thermal protection systems.

The utility model relates to the technical field of gas dryers, and discloses a zero-gas-consumption compression heat regeneration adsorption type dryer structure, which comprises two parallel adsorption tanks filled with drying agents, three heat exchangers, a gas-water separator, a heater, a fan and the like, and is provided with a process pipeline and a valve which are connected with each part. According to the utility model, the functions of compressed air heat recovery, compressed air cooling and drying, interactive adsorption and regenerative cooling between the two adsorption tanks and the like are realized.

The invention belongs to the field of regenerative cooling channels, and particularly relates to a wide-speed-range self-adaptive structure and method of a regenerative cooling channel. The structure comprises a spoiler and a metamaterial elastic connecting piece, wherein one end of the spoiler is connected with the metamaterial elastic connecting piece, and the other end of the spoiler is fixed on the wall surface of the air flow channel; the metamaterial elastic connecting piece is configured to form an acute included angle with the wall surface of the flow channel in a balance state; the spoilers are configured to be that under the action of fluid, the included angle between each spoiler and the wall face of the corresponding flow channel can be reduced along with increase of the fluid flow, and therefore self-adaptive adjustment that heat exchange is enhanced when the flow is low and resistance is reduced when the flow is high is achieved. The inclination angle is automatically adjusted through the movable spoilers under the action of fluid, and wide-speed-range heat management that heat exchange is enhanced at low flow and resistance is reduced at high flow is achieved.

The invention belongs to the field of engine cooling, and particularly relates to a double-working-medium regenerative cooling system and method. The double-working-medium regeneration cooling system comprises a double-working-medium regeneration cooling module, an ammonia cracking product separation module and an energy comprehensive utilization module. The double-working-medium regeneration cooling module comprises an ammonia supply device, a kerosene supply device and a double-layer regeneration cooling channel, the ammonia cracking product separation module comprises a membrane separator and a pressure swing adsorption unit, and the energy comprehensive utilization module comprises power generation equipment connected with the nitrogen-rich gas outlet. Through ammonia and kerosene double-working-medium cooling, ammonia cracking hydrogen production and nitrogen-rich gas power generation, a closed-loop system integrating efficient heat management, stable combustion and efficient energy utilization is constructed.

The utility model discloses a rubber regenerating, cooling and shaping device, and relates to the technical field of rubber processing. The conveying device comprises a conveying belt, first connecting plates are fixedly arranged on the two sides of the feeding end of the conveying belt, and second connecting plates are fixedly arranged on the two sides of the discharging end of the conveying belt; the material buffering plates are fixedly arranged at the end of the second connecting plate, the two material buffering plates are both in a wave shape, a columnar part to be cooled is arranged between the two material buffering plates in a sliding mode, and a material guiding plate is connected between the ends, away from the second connecting plate, of the material buffering plates and the first connecting plate. By arranging the spraying assembly, water mist is firstly formed on the surface of a part, heat is absorbed through the evaporation effect of water, the heat is taken away after the water mist evaporates, rapid cooling is achieved, meanwhile, the fan blows air to accelerate the air velocity on the surface of the part, the standing time is prolonged in cooperation with the wave path of the material buffering plate, rapid and uniform cooling and shaping are achieved, and practicability is high.

The utility model relates to the technical field of gas drying equipment, and discloses a zero-gas-consumption blast cold blowing regeneration compressed gas drying system which realizes adsorption, regeneration and pressure equalization. The water content of gas entering the system is reduced, the quality of product gas is improved, meanwhile, energy consumption and production cost can be reduced, low-dew-point dry gas is prepared, cold-blowing airflow is powered by an air blower, cold-blowing circulating airflow is output from the air blower and enters a second adsorption tower from bottom to top, and cold-blowing cooling is conducted on an adsorbent; after flowing out of the second adsorption tower, the cold blowing gas enters the air blower to be sucked and pressurized and then is output, and is cooled by the regeneration cooler to form the whole cold blowing circulation until the temperature of the second adsorption tower is reduced to the set temperature, so that finished gas is completely not consumed, the cost is reduced, emptying is basically avoided in the whole process, and noise and pollution caused by sudden discharge of compressed gas are eliminated; the switching is stable, the service life of the adsorbent is prolonged, and the equipment basically realizes zero emission and saves energy.

The application discloses a kind of based on fuel reaction progress uniformity optimization's regenerative cooling multi-channel layout design method, comprising: setting initial channel number and determining the design fuel flow of each channel, initial state is equidistantly distributed and section geometric parameter is set;Cooling structure is divided into multiple sites perpendicular to fuel flow direction;According to the non-uniform thermal field of engine, load thermal boundary condition;Through calculating heat conduction process and fuel cracking reaction, obtain the fuel temperature and cracking reaction data of each site;The position of channel is adjusted between adjacent sites by optimization algorithm, and the value of objective function is minimized;Through repeated optimization calculation, obtain the channel layout of all sites, and connect each site by cubic spline curve to obtain the final multi-channel layout optimization result.The application solves the layout adaptation problem of regenerative cooling channel in complex thermal environment, improves the cooling efficiency, reduces fuel excessive cracking and cooling capacity waste.