334 results about "Hydrogen combustion" patented technology

The invention relates to waste heat recovery equipment and a natural gas hydrogen-doped combustion system. The waste heat recovery equipment comprises a first heat exchanger, a second heat exchanger and a spray tower, the first heat exchanger is provided with a first heat absorption side and a first heat release side, an outlet of the first heat absorption side is communicated with a combustion-supporting gas inlet of the combustor, the second heat exchanger is provided with a second heat absorption side and a second heat release side, and an inlet of the second heat release side is connected with a high-temperature flue gas outlet of the combustor. The spray tower is provided with a cooling water inlet, a smoke inlet, a smoke outlet and a spray water outlet, the smoke inlet is communicated with the outlet of the second heat release side, the spray water outlet is communicated with the inlet of the second heat absorption side, and the outlet of the second heat absorption side is communicated with the inlet of the first heat release side. According to the waste heat recovery equipment, two-stage waste heat recovery of high-temperature flue gas is achieved, the waste heat recovery efficiency is remarkably improved, combustion-supporting gas can be heated, accordingly, other combustion efficiency is improved, natural gas consumption and carbon emission are reduced, and the requirements for energy conservation and carbon reduction in the industrial high-temperature combustion process are met.

The invention belongs to the field of boiler waste heat utilization, and particularly discloses an alcohol-hydrogen fuel mixed combustion system utilizing boiler waste heat, which comprises a methanol cracker unit, a methanol supply unit, a methanol cracked gas supply unit, an alcohol-hydrogen burner unit and a smoke exhaust steam supply unit, the methanol cracker unit comprises a methanol cracker, a methanol inlet pipe, a cracked gas outlet pipe, a smoke exhaust inlet flange, a smoke exhaust outlet flange, a methanol shell side area and a smoke exhaust pipe side area, a plurality of heat exchange pipes are uniformly distributed in the smoke exhaust pipe side area, and the methanol inlet pipe is used for connecting the methanol supply unit and the methanol shell side area; the exhaust smoke inlet flange is used for connecting the methanol cracker unit and the exhaust smoke steam supply unit, and the methanol supply unit and the methanol cracked gas supply unit are both used for connecting the methanol hydrogen burner unit and the methanol cracker unit. By means of the self-designed methanol cracker combustion loop, liquid methanol and methanol cracking gas can be combusted at the same time, and the energy utilization rate is greatly increased.

The utility model discloses a hydrogen-doped combustion device in the technical field of combustion equipment. The hydrogen-doped combustion device comprises a gas transmission unit and a control unit, the gas transmission unit comprises a mounting disc and a shell, a gas outlet is formed in the surface of the mounting disc, a gas pipe communicated with the gas outlet is arranged on the side wall of the mounting disc, the shell is arranged on the other surface of the mounting disc and communicated with the gas outlet, and a gas inlet is formed in the shell; a blocking piece used for blocking the shell and an outlet of the second hydrogen pipe is arranged on an outlet of the shell, and an unlocking assembly is arranged in the communication area of the installation disc and the gas pipe and used for unlocking the blocking piece when being impacted by gas. The shell and the outlet of the second hydrogen pipe are blocked through the blocking piece, hydrogen cannot enter the gas outlet when fuel gas does not enter the channel and does not push the baffle to rotate, it is ensured that hydrogen starts to be introduced only when enough fuel gas needs to enter the gas outlet, and safety is improved.

The invention relates to the technical field of hydrogen production, and discloses an ecological cement hydrogen combustion system which comprises a hydrogen supply module, a premixed combustion module, a kiln, a waste heat recovery module and a control module. The hydrogen supply module is connected with the premixing combustion module through a graded pressure stabilizing pipeline, the combustion module is embedded into a kiln firing zone through a multi-layer annular ejector structure, and the waste heat recovery module comprises three stages of heat exchange units which are connected with a raw material preheating system and a generator set. The control module integrates a combustion parameter dynamic optimization algorithm and is provided with a safety interlocking system. Through mutual cooperation of the rotational flow flame stabilizing structure and the gradient heat insulation layer, adaptation of hydrogen energy combustion and a cement sintering process is achieved, the Pt / Al2O3 catalyst layer enables the hydrogen initiation temperature to be reduced to 400 DEG C, the flame temperature uniformity deviation is smaller than or equal to + / -15 DEG C, and the clinker sintering time is shortened by 18% compared with that of a traditional gas kiln.

The invention relates to the technical field of hybrid power system energy management, and discloses a sodium battery SOC and hydrogen combustion efficiency adaptive energy management and control system, which comprises a state sensing module used for constructing a multi-dimensional state vector containing sodium ion battery SOC, temperature and total power requirements; the collaborative decision-making module is used for receiving the state vector based on a reinforcement learning model and outputting a collaborative decision-making instruction containing a power distribution coefficient and a thermal management control factor; the electrothermal coupling management module is used for regulating and controlling the transfer of the waste heat of the hydrogen fuel cell to the sodium ion battery according to the thermal management control factor; and the instruction execution module is used for analyzing the collaborative decision instruction into a bottom layer control signal for each power source and a heat management executor. According to the method, the unified decision framework of the electric energy and the heat energy is constructed, so that global self-optimization of the electric power flow and the heat energy flow is realized, and the overall energy utilization efficiency, the dynamic response capability and the environmental adaptability to wide working temperatures of the hybrid power system can be effectively improved.

The invention discloses a three-dimensional numerical simulation method and system for a hydrogen-doped combustion chamber of a gas turbine, computer equipment and a storage medium, and relates to the technical field of gas turbines.The method comprises the steps that three-dimensional modeling is conducted on the basis of a to-be-simulated combustion chamber of the gas turbine, and a three-dimensional solid model of the combustion chamber is constructed; performing flow field mesh generation on the combustion chamber solid model by using a mesh generation tool to obtain a solid model with a flow field mesh; based on the solid model with the flow field grid, determining boundary conditions, selecting a proper chemical reaction mechanism and a turbulent combustion model, constructing a simulation numerical model, and performing calculation; according to the method, key parameters in the combustion process of the hydrogen combustion chamber can be rapidly and accurately obtained, the combustion state can be more visually mastered, calculation examples of different working conditions are calculated and analyzed and compared, the influence of the hydrogen mixing proportion on the combustion state of the combustion chamber and the pollutant emission condition can be obtained, and the method is suitable for popularization and application. And a calculation result has an important reference effect on practical engineering application.

The utility model relates to the technical field of hydrogen internal combustion engines, in particular to a device for increasing tail gas temperature of a hydrogen internal combustion engine and enhancing pressurization. Comprising the steps that an exhaust hydrogen combustion device and an electronic control unit are additionally arranged on an original exhaust manifold of an internal combustion engine, an auxiliary combustion chamber is installed on the upstream of a turbocharger, the oxygen exhaust flow is calculated through an exhaust flow sensor and an oxygen concentration sensor, the hydrogen spraying flow of a hydrogen nozzle is determined, and hydrogen-air mixed gas is ignited through a sparking plug; therefore, the tail gas enthalpy value of an inlet of the turbocharger is increased through combustion of hydrogen in the auxiliary combustion chamber, the supercharge ratio is increased, and then the inflation efficiency and the power density of the hydrogen internal combustion engine are improved.

The invention relates to the technical field of gas turbines, and discloses a combustion chamber and a pure hydrogen gas turbine with the same. The combustion chamber comprises an outer cover, a flame tube, a cooling cavity and a cooling piece. The inner wall of the outer cover and the outer wall of the flame tube are arranged in a spaced mode to form an outer-layer flow channel, the cooling cavity is arranged in the flame tube and arranged on the outer side of the combustion cavity in a sleeving mode, the cooling cavity communicates with an air inlet channel and an air outlet channel, the air inlet channel communicates with the outer-layer flow channel, and the air outlet channel penetrates through the side wall of the flame tube to communicate with the combustion cavity. The cooling piece is arranged in the cooling cavity, the air inlet end of the cooling piece communicates with the cooling cavity, and the air outlet end of the cooling piece penetrates through the head of the flame tube to communicate with the combustion cavity. Air entering the outer-layer flow channel is divided, air for cooling the flame tube is finally gathered into the combustion cavity again, and therefore the mixing proportion of the air and hydrogen in the combustion cavity is guaranteed, it is guaranteed that the head of the flame tube is cooled, and then stable combustion of the hydrogen is guaranteed.

A propulsion system comprises a propulsive hydrogen-burning gas turbine engine, a first tank storing liquid hydrogen with an ullage and a first fuel line including a fuel pump and a vaporiser, the first fuel line providing gaseous hydrogen to the engine during operation of the system. A second tank storing gaseous hydrogen is coupled by a second fuel line to the first fuel line at a position thereon between the vaporiser and the engine, providing for engine start-up (when the vaporiser is inoperative) and power-boosting during operation of the system. A duct connects gaseous hydrogen within the second tank to the ullage in the first tank in order maintain pressure in the first tank as liquid hydrogen within it is depleted, preventing cavitation of liquid hydrogen within the fuel pump.

The invention discloses a hydrogen energy production and production-and-use distributed energy supply system, which relates to the technical field of new energy, and comprises a hydrogen production module which comprises a proton exchange membrane electrolytic tank, an alkaline electrolytic tank and a solid oxide electrolytic tank and runs through a three-mode collaborative architecture, in combination with a light-electricity-heat synergistic catalysis device and a wastewater or industrial tail gas coupling hydrogen production device, the hydrogen storage and safety management module comprises a metal hydride hydrogen storage unit, a metal organic framework material hydrogen storage unit and a liquid organic hydrogen storage unit. According to the invention, multi-source, high-efficiency and low-cost hydrogen production is realized through the hydrogen production module with a three-mode collaborative architecture in combination with light-electricity-heat collaborative catalysis and wastewater / industrial tail gas coupling hydrogen production, and meanwhile, a solid oxide fuel cell and micro gas turbine combined cycle, a hydrogen combustion turbine direct drive and a multi-type energy storage unit in the energy supply module realize multi-source, high-efficiency and low-cost hydrogen production. And in cooperation with waste heat-cold energy gradient utilization, the energy conversion efficiency and the comprehensive energy utilization rate are greatly improved.

The invention belongs to the technical field of clean combustion, and particularly relates to a pulverized coal dense-thin separation and ammonia gas jet flow large-angle reverse blowing direct-current burner and a combustion system, and the direct-current burner comprises an ammonia gas channel, a burner channel and a pulverized coal dense-thin separator; the pulverized coal dense-thin separator is arranged in the combustor channel; the output end of the combustor channel is a thick-thin primary air nozzle, and a separator is arranged in the middle of the thick-thin primary air nozzle; an included angle is formed between the axis of the concentrated-phase primary air back-blowing nozzle and the axis of the combustor channel; the ammonia gas channel is arranged on the side edge of the combustor channel and is arranged close to one side of the concentrated-phase primary air back-blowing nozzle; the output end of the ammonia gas channel is an ammonia gas back-blowing nozzle which forms an included angle with the axis of the combustor channel; the included angle between the ammonia gas back-blowing nozzle and the axis of the combustor channel is larger than the included angle between the axis of the concentrated-phase primary air back-blowing nozzle and the axis of the combustor channel. Compared with the prior art, the problem that a large amount of NOx is easily generated during ammonia-doped combustion of pulverized coal is solved. According to the scheme, ammonia combustion is converted into hydrogen combustion, and high combustion efficiency and environmental protection performance are both considered.

The invention discloses a method for predicting and optimizing nitrogen oxide emission of an ammonia-hydrogen combustion chamber of a gas turbine, and the method comprises the steps: carrying out the data fusion and preprocessing according to the experimental data and simulation data of the nitrogen oxide emission of the ammonia-hydrogen combustion chamber; constructing a physical information neural network model; training a physical information neural network model according to the training data set; analyzing a chemical reaction path of the nitrogen oxide according to the physical information neural network model; and optimizing the characteristic parameters of the ammonia-hydrogen combustion chamber based on the path contribution degree according to the physical information neural network model. According to the method, the PINN model is established by utilizing experiment and simulation data, the conservation constraint and the reaction path constraint are set, so that the prediction precision of the model on the nitrogen oxide emission is improved, the efficiency and the physical interpretability of the model are improved, the contribution degree of the reaction path is quantified by utilizing the PINN model, the combustion characteristic parameters are quickly searched and optimized, and the efficiency and the physical interpretability of the model are improved. The calculation time is shortened, and the optimization efficiency of the emission prediction of the nitric oxide in the ammonia-hydrogen combustion chamber is improved.

The invention relates to a heat, electricity and mechanical energy combined supply system of a two-stage ammonia decomposition hydrogen production device based on reaction and separation coupling, and belongs to the technical field of ammonia decomposition hydrogen production energy comprehensive utilization. Comprising an ammonia gas supply unit, a water vapor supply unit, an air supply unit, a first heat exchanger, a second heat exchanger, a front-section reactor, a rear-section reactor, a gas-liquid separator, a hydrogen storage unit, a proton exchange membrane battery, an ammonia-hydrogen burner, a hydrogen-air burner and a third heat exchanger. The system has the characteristics of complete and compact structure and multiple functions; the system energy utilization rate is high, and energy self-sufficiency can be achieved; energy utilization is achieved, output flexibility is high, regulation and control modes are diversified, and the capacity of outputting heat, electricity, mechanical energy and hydrogen outwards is achieved; the system is low in cost, high in safety and strong in adaptability.

The invention relates to the technical field of hydrogen combustion, and discloses a radial rotational flow coaxial mixing hydrogen combustion head and a using method, and a hydrogen tank and an air tank are arranged in the hydrogen combustion head; a mixing cavity is formed in the mixing spray head and used for communicating the mixing cavity with the air groove, and a center shield body is installed in the mixing cavity and used for changing the air outlet direction of air entering the mixing cavity; the hydrogen pipeline comprises a conveying section and an output section, the conveying section is connected between the hydrogen tank and the mixing nozzle and used for conveying hydrogen in the hydrogen tank into the mixing chamber, the output section is installed on the conveying section and located in the mixing chamber, and the hydrogen output direction of the conveying section is consistent with the air outlet direction of air in the mixing chamber; according to the hydrogen combustion head, through the structural design, the problems that in the prior art, the hydrogen and air mixing effect of the hydrogen combustion head is poor, and tempering is prone to occurring are solved, and the combustion efficiency is improved.

Storage system (1) for storing a gaseous medium, preferably hydrogen, comprising several tank containers (2) with a longitudinal axis (42), a first medium collector block (4), and a second medium collector block (6). One end (15) of each tank container (2) opens into the first medium collector block (4), and another end (16) of each tank container (2) opens into the second medium collector block (6), where they are fixed and sealed. Furthermore, the storage system (1) has at least one tie rod element (10), which tie rod element (10) is made of the same material as the tank containers (2).

In a grill-cooking apparatus including a burner that combusts hydrogen and a food mounting part provided above the burner, a washing-away effect of the excessive fat content by moisture contained in a hydrogen combustion gas can be enhanced. Each supporting rod part includes a flat part located at an upper end and configured to come into contact with food, a maximum-width part, which is located below and away from the flat part, and a Y-axis direction width of which is maximum, and an increasing-width part, a Y-axis direction width of which gradually increases from the flat part toward the maximum-width part. Preferably, each supporting rod part is provided with a decreasing-width part, a width of which gradually decreases from the maximum-width part toward a lower end.

The object of the present invention is a control method for verifying the presence of the flame in the combustion chamber (41) of a premixed gas burner (1), fed by an air and gas mixture mainly and / or essentially comprising hydrogen H2. The method is based on the use of at least one temperature sensor (6), the values whereof are sent to a control device (8) which uses them to calculate the derivative T′ over time of the temperature T to compare it to suitable feedback thresholds (Tau1, Tau2; Tau3, Tau4) to establish the ignition occurred, the ignition failure or flame extinguishment.

The invention relates to the technical field of flue gas multi-pollutant synergistic purification, in particular to a preparation method of an ultralow-temperature denitration and decarbonization catalyst and application of the ultralow-temperature denitration and decarbonization catalyst to synchronous removal of nitrogen oxides and carbon monoxide in industrial flue gas. The catalyst is prepared by a two-step method comprising the following steps: S1, dispersing a cerium source and a platinum source in absolute ethyl alcohol, and synthesizing a Pt / CeO2 monatomic catalyst by a hydrogen combustion method; s2, compounding an iron source and Pt / CeO2 through a coprecipitation method, drying and calcining in a nitrogen atmosphere to obtain the Fe-Pt / CeO2 composite catalyst. The key process parameters comprise hydrogen / oxygen flow velocity, calcination temperature and mass ratio of the iron source to the carrier. The synergistic removal efficiency of the catalyst on NOx and CO at the ultralow temperature of 50-120 DEG C reaches 85% or above, and the bottleneck that the low-temperature activity of a traditional catalyst is insufficient is broken through; sulfur resistance and water resistance are remarkably improved through the porous structure and the oxygen storage capacity of CeO2, and the activity retention rate is larger than 90% when SO2 and H2O are contained; the device is suitable for high-efficiency purification of complex flue gas of steel, waste incineration and the like, and meets the policy requirements of pollution reduction, carbon reduction and synergistic interaction.

A combustion chamber head with a nozzle satisfying hydrogen combustion characteristics, which helps stable and safe combustion of hydrogen fuel and reduces the risk of combustion chamber backfire and ablation. A combustion chamber comprising the aforementioned head can provide zero-carbon emission and low-pollution combustion. The combustion chamber head comprises a nozzle for delivering hydrogen fuel; and a first air passage adjacent to the nozzle; the nozzle comprises a fuel passage for delivering hydrogen combustion fuel; a fuel injection hole in communication with the fuel passage for injecting the hydrogen fuel; a second air passage for delivering air; and an air injection hole in communication with the second air passage for injecting air; the injection direction of the fuel injection hole and the injection direction of the air injection hole are arranged to intersect with the first air passage, and the air injection hole is located on the downstream side of the fuel injection hole.

A hydrogen combustion-supporting liquid ammonia gas turbine combustor comprises a liquid ammonia fuel pipeline located at a center main shaft, a first-stage axial swirler and a first-stage radial swirler coaxially arranged outside the liquid ammonia fuel pipeline, and the swirler directions are the same and used for stabilizing the liquid ammonia flame. A pre-evaporation pipeline is arranged outside to form a hydrogen gas collecting chamber, and a center space of the pre-evaporation pipeline forms a primary air channel for completing pre-mixing swirl of liquid ammonia, hydrogen and air to stabilize the liquid ammonia flame. The pre-evaporated ammonia gas in the pre-evaporation pipeline enters a secondary air channel and completes pre-mixing swirl with air through a second-stage axial swirler. Secondary air holes are formed on a wall surface of a flame tube, a large amount of air enters to burn the fuel completely and improve combustion efficiency, and simultaneously dilutes tail gas to reduce NOx emission. The present application uses liquid ammonia as fuel, realizes stable liquid ammonia flame and reduces NOx emission through liquid ammonia fuel staging, hydrogen combustion-supporting, multi-stage swirl pre-mixing and staged combustion.

High-temperature and high-pressure gas is generated according to an internal combustion engine steam engine basic principle using method to drive piston motion, and the motion is converted into mechanical motion. The design principle of the hydrogen water vapor power internal combustion steam engine is based on the principle. According to the characteristic that the combustion temperature of hydrogen is high, the characteristic that water can be electrolyzed into hydrogen and oxygen, and the characteristic that the boiling point of the water under conventional atmospheric pressure is 100 DEG C, the hydrogen water vapor power internal combustion steam engine is integrated to obtain a result.

The invention provides a porous unit level petal-shaped nozzle hydrogen combustion chamber with a head flow uniformizing plate, the porous unit level petal-shaped nozzle hydrogen combustion chamber with the head flow uniformizing plate comprises a head and a flow uniformizing piece, the head comprises a mounting plate and a nozzle unit, the mounting plate is provided with a mounting hole, the nozzle unit is fixed in the mounting hole, and the flow uniformizing piece is arranged on the mounting plate. The nozzle unit comprises a pre-combustion-stage nozzle and a main combustion-stage nozzle, the main combustion-stage nozzle is arranged on the peripheral side of the pre-combustion-stage nozzle, the main combustion-stage nozzle comprises a main first-stage nozzle and a main second-stage nozzle, the circle of main combustion-stage nozzle adjacent to the pre-combustion-stage nozzle is the main first-stage nozzle, the flow uniformizing piece comprises a flow uniformizing plate and an annular plate, one end of the annular plate is connected with the flow uniformizing plate, and the other end of the annular plate is connected with the flow uniformizing plate. The other end of the annular plate is connected with the head, the flow uniformizing plate and the head are arranged in a spaced mode, and the flow uniformizing plate is used for guiding cooling gas to evenly flow to the head. The porous unit level petal-shaped nozzle hydrogen combustion chamber with the head uniform flow plate has the advantages of being good in combustion stability, high in safety and the like.

The present disclosure provides a method and apparatus for high purity hydrogen combustion liquid hydrocarbon cracking. In one embodiment, the method may include: preheating a liquid hydrocarbon feedstock in a first heat exchanger external to the furnace; adding steam to the preheated liquid hydrocarbon feedstock to form a fully or substantially fully vaporized stream; heating the fully or substantially fully vaporized stream in a second heat exchanger external to the furnace; and cracking the heated fully or substantially fully vaporized stream after preheating the heated fully or substantially fully vaporized stream in the furnace to form a cracked gas stream comprising ethylene and hydrogen.

The invention relates to the technical field of hydrogen combustion equipment, and discloses a hydrogen combustion transverse flow penetrating micro-mixing nozzle with secondary air holes and a using method.The hydrogen combustion transverse flow penetrating micro-mixing nozzle with the secondary air holes comprises a nozzle body, and a flow adjusting assembly is arranged in the nozzle body; the nozzle body is divided into an air cavity and a mixing cavity through the flow adjusting assembly, and the flow adjusting assembly is used for adjusting the flow of air entering the mixing cavity from the air cavity. A step is fixedly connected to the inner side wall of the nozzle body, a hydrogen channel and a secondary air channel which are located in the mixing cavity are formed in the step, and an air outlet of the secondary air channel is located behind an air outlet of the hydrogen channel. The technical problems that an existing hydrogen combustion nozzle is poor in mixing uniformity, low in flow adjusting precision and insufficient in secondary air supply are solved.

The invention provides a three-time air supply methanol-to-hydrogen combustion evaporator which comprises a heat exchanger, a combustion evaporator body, a combustion chamber and a three-time air supply device, the air outlet end of the heat exchanger communicates with the three-time air supply device, and the three-time air supply device is arranged at the top of the combustion chamber. The tertiary air supply device blows flames generated during combustion of the combustion chamber to the combustion evaporator, the heat exchanger is used for preheating normal-temperature air, and the tertiary air supply device supplies air to the combustion chamber. The three-time air supply design is adopted, so that combustion is more complete, the flame temperature distribution is uniform, the heat efficiency is greatly improved, and fuel waste is reduced. Through gas preheating and waste heat recovery, external energy input is reduced, the operation cost of the system is remarkably reduced, and the energy-saving and environment-friendly trend is met. The high-temperature gas guide pipe guides waste heat back to the heat exchanger, heat energy recycling is achieved, the overall heat energy utilization rate is increased, and emission loss is reduced.

The invention provides an acid gas trapping and eliminating device, and relates to the technical field of acid gas leakage treatment. The acid gas trapping and eliminating device comprises a trapping and eliminating agent storage tank and a foam tank which are arranged above a movable bottom plate, a guide pipe is fixedly communicated between the trapping and eliminating agent storage tank and the foam tank, and a first discharging pipe is fixedly communicated with one side of the outer surface of the trapping and eliminating agent storage tank. By designing a foam tank, a guide pipe, a trapping agent storage tank, a dry powder spraying pipeline and an inert gas atomization / foam generator to be integrated and arranged side by side, mist or foam formed by a large amount of inert gas is sprayed to a leakage area while or before dry powder is sprayed, the oxygen concentration in air is diluted, and the risk of hydrogen sulfide combustion is restrained; the atomization / foam layer is arranged on the surface of the dry powder and creates a better dispersion environment for the dry powder, the dry powder can be better carried and dispersed by the atomization / foam so that the dry powder can be in full contact with hydrogen sulfide, and meanwhile, the foam layer can cover the ground to reduce flying of products after reaction of the dry powder.

This invention relates to a rapid prediction system and method for combustion characteristics of pure hydrogen micro-mixed combustors based on CNN. The invention addresses the problem of long design cycles for micro-mixed pure hydrogen combustors. By constructing a dataset representing the relationship between "inlet conditions and combustion characteristics," this invention enables rapid prediction of the combustion characteristics of pure hydrogen micro-mixed combustors based solely on the inlet conditions, significantly accelerating the variable operating condition design cycle. The prediction system includes a data acquisition module, a data preprocessing module, a dataset partitioning module, a prediction model construction module, a combustion characteristic prediction module, and a model update and optimization module. This invention belongs to the field of micro-mixed combustion technology.

The invention relates to the field of hydrogen energy power generation, in particular to a power generation system and method based on distributed hydrogen energy. The power generation system comprises a hydrogen production module, a hydrogen storage module, a hydrogen combustion power generation module and a heat recovery power generation module, the hydrogen production module comprises a deionized water unit, a hydrolysis hydrogen production unit, a gas-water separator and a hydrogen purification unit which are communicated in sequence, and the energy storage module comprises a compressor and a hydrogen containing grid. The hydrogen-fired power generation module comprises a fuel mixing chamber, a gas turbine, a flue gas heat exchanger and a power generator, the fuel mixing chamber and a combustion chamber of the gas turbine are communicated and integrated together, the flue gas heat exchanger is installed on a smoke exhaust channel of the gas turbine, and the power generator is fixedly connected with the gas turbine; the heat recovery power generation module comprises a semiconductor refrigeration power generation module and an SMA power generation module which are integrated in the flue gas heat exchanger and is used for recovering flue gas waste heat for power generation. The semiconductor refrigeration power generation module and the SMA power generation module are arranged, low-grade heat energy can be recycled, and the energy utilization efficiency is improved.

The present invention discloses a hydrogen combustion and explosion experimental device and method. The hydrogen combustion and explosion experimental device includes a shell, an ignition system, a data acquisition system, a gas distribution system and a cooling system. The gas distribution system is used to introduce premixed gas into the shell, the ignition system is used to ignite the premixed gas in the shell, the data acquisition system is used to detect the combustion and explosion data in the shell, and the cooling system is used to cool the shell. First, the premixed gas is introduced into the shell through the gas distribution system, and the shell is cooled by the cooling system, thereby cooling the premixed gas. Subsequently, the premixed gas in the shell is ignited by the ignition system, and finally the combustion and explosion data in the shell can be detected by the data acquisition system. Using the above-mentioned hydrogen combustion and explosion experimental device, the premixed gas can be cooled before detonating the premixed gas, so that the combustion and explosion characteristics of the premixed gas in a low-temperature environment can be studied.

The application discloses a multi-swirl head design and method of a gas turbine combustor, aiming at solving the problems of difficult matching of a swirler and a flame tube size and difficult prediction of swirl interaction in the early stage of research and development. The method is based on the potential flow theory, adopts a two-dimensional design method, calculates the swirl field velocity distribution through point vortices, sources / sinks and mirror vortices, and considers the wall surface of the combustor as a non-velocity boundary condition. The method is realized by Python language combined with NumPy and Matplotlib libraries, can input swirler parameters, grid settings and linear / convex / concave swirl number distribution types, calculate swirl numbers and circulation, generate streamline diagrams and velocity contour diagrams, and output swirl numbers, circulation and other data. The designed multi-swirl head comprises a central duty swirl and a plurality of main swirls surrounding the central duty swirl, and adjacent main swirls have different rotation directions. The method can judge the swirl interaction and optimize an ignition scheme, adapt to the flame tube, silo type and full annular combustor, and can be used in the scenes of low-pollution combustion of a gas turbine, combustion of an aero-engine and hydrogen combustion, so that the research and development cycle is shortened and the cost is reduced.