212 results about "Ammonia storage" patented technology

The invention provides an island energy system optimization scheduling method considering ammonia-to-electricity waste heat power generation, and the method employs an independent island integrated energy system containing an ammonia-to-electricity system to execute a weekly-day-intra-day multi-stage operation optimization scheduling strategy, and the independent island integrated energy system is a system considering the ammonia supply demand. Wind energy and solar energy are used as energy input, energy is supplied to seawater desalination equipment and an electricity-to-ammonia system, and the electric load requirements of island residents are met; meanwhile, seawater desalination equipment is used as a power demand response resource to increase the water-energy coupling relationship of the system model, and cross-time storage and utilization of fresh water resources are realized through a reservoir, so that an ammonia-hydrogen power ship which is used for meeting daily travel demands of island residents is used as an ammonia load; an electricity-to-ammonia system and an ammonia storage tank are adopted to realize effective consumption of island wind and light resources; according to the invention, the long-period energy supply reliability of the island can be improved, and the problem of uncertainty of wind energy and light energy resources of the island can be effectively solved.

The invention discloses an efficient ammonia decomposition hydrogen production system based on the Joule heating effect and belongs to the technical field of clean energy. The system is composed of an ammonia supply module, a Joule thermally driven ammonia decomposition reaction module and a hydrogenation module. Wherein the ammonia supply module consists of a liquid ammonia storage device, a vaporizing chamber and an ammonia gas storage device; the Joule thermally-driven ammonia decomposition reaction module consists of an ammonia gas flow control valve, a reaction tube gas inlet, a reaction tube gas outlet, a Joule heating electrode tip, a direct-current power supply, a temperature sensor, a thermal insulation layer, a reaction tube, a catalyst and a stainless steel alligator clip; the hydrogenation module is composed of a hydrogen purifying and drying device, a hydrogen compressor, a hydrogen cooling unit, a high-pressure hydrogen storage tank, a hydrogen flow control valve and a hydrogenation machine. The whole process can be started and stably output within one second, the conversion rate and the electrothermal conversion efficiency both exceed 90%, low energy consumption, quick response and safe operation are achieved, the system is particularly suitable for hydrogen refueling station construction in a future hydrogen energy network, and green hydrogen energy economy development is promoted.

The invention discloses an electricity-hydrogen-ammonia coupling system configuration method and system, and relates to the technical field of electricity-hydrogen-ammonia coupling systems, and the method comprises the steps: sequentially carrying out two-stage clustering according to renewable energy source daily output data, electrothermal hydrogen daily load data and daily net energy, and generating a typical daily scene and a clustering index; performing electric hydrogen ammonia energy storage collaborative simulation operation on all the typical day scenes, and reconstructing a year-round energy storage state based on a clustering index according to the variation of the hydrogen storage amount and the ammonia storage amount after simulation operation of each typical day scene; and taking the minimum annual total cost formed by the simulation operation cost, the capacity configuration cost and the hydrogen safety risk cost as an optimization target to obtain an optimal equipment capacity configuration scheme. While the calculation cost is reduced and the solving efficiency is improved, the time sequence connection characteristic and the energy storage characteristic of different long-time energy storage are kept, and multi-time-scale energy transfer is realized, so that the applicability and the economical efficiency of a planning scheme are improved.

The invention relates to the field of nitriding furnaces, in particular to an ammonia gas circulating system of a nitriding furnace, which comprises a furnace body, a furnace cover and a gas inlet mechanism, the furnace body is provided with a containing cavity, the furnace cover is connected to the furnace body and covers a cavity opening of the containing cavity, and the gas inlet mechanism comprises a gas inlet main pipe, an annular pipeline, an electromagnetic valve and a detection assembly, one end of the gas inlet main pipe is connected to the outer wall of the annular pipeline, the other end of the gas inlet main pipe is used for being connected with an external ammonia gas storage mechanism, the electromagnetic valves are connected to the annular pipeline, the other ends of the electromagnetic valves extend into the furnace body, the electromagnetic valves are circumferentially distributed around the axis of the annular pipeline at intervals, and the detection assembly is embedded in the containing cavity to control the electromagnetic valves to be opened and closed. External ammonia gas is conveyed to the annular pipeline through the gas inlet main pipe, then the ammonia gas is input into the furnace body through the multiple electromagnetic valves distributed around the axis of the annular pipeline in the circumferential direction at intervals, meanwhile, the detection assembly controls the electromagnetic valves to be opened and closed through the pressure intensity in the containing cavity, the ammonia gas introduced into the nitriding furnace is evenly distributed to all positions in the nitriding furnace, and the uniform nitriding effect is improved.

The invention discloses a salt cavern ammonia reservoir stability evaluation system based on multi-parameter fusion and intelligent perception, and aims to solve the problem of stability evaluation of a salt cavern ammonia reservoir. According to the system, the geological condition is determined through a three-dimensional seismic exploration system and a drilling exploration technology, and sonar measurement and a sensor are used for monitoring data such as the cavity internal pressure and the volume shrinkage condition of the ammonia storage library in real time. Multi-source parameters such as the internal pressure, the cavity volume shrinkage rate and the safety pillar width are fused, micromechanical parameters and macrogeological conditions are incorporated into a stability coefficient, and the judgment accuracy is improved. The Internet of Things based on a deep learning algorithm is used for collecting data through a sensor network and transmitting the data to a large platform for analysis, so that real-time judgment and intelligent perception of stability can be realized, an operation risk can be predicted, and a response mechanism can be made in time. Meanwhile, the method provides mature thoughts and references for stability evaluation of similar underground reservoirs.

The invention discloses a deep sea floating type ammonia production and storage system and method, and the system comprises an offshore floating type ammonia production ship which is located on the sea surface and is used for producing liquid ammonia; the wind power generation device is positioned above the sea surface and is used for supplying energy required for producing liquid ammonia to the offshore floating type ammonia production ship; the underwater flexible liquid ammonia storage device is located below the sea surface and used for storing liquid ammonia produced by the offshore floating type ammonia production ship, and the water pressure provided by the seawater depth of the installation position of the underwater flexible liquid ammonia storage device is larger than the ammonia saturated vapor pressure corresponding to the seawater temperature of the installation position; liquid ammonia produced by the offshore floating ammonia production ship is conveyed into the underwater flexible liquid ammonia storage device through a pipeline to be stored; according to the offshore floating type production ammonia storage ship containing the underwater flexible liquid storage device, the deepwater pressure and the temperature environment are fully utilized, the flexible non-metal bag is adopted as the liquid ammonia storage device, and therefore the manufacturing cost of the FPSO under the same ammonia production capacity is lower, and the liquid ammonia storage cost is reduced.

The invention belongs to the technical field of environmental protection, and particularly relates to a treatment method for recycling cement kiln flue gas mineralization solid waste gypsum coupling escape ammonia, which comprises the following steps: conveying original flue gas to a deamination tower, feeding an ammonia-containing ammonium sulfate solution output by a mineralization reactor into the deamination tower for deamination, washing the flue gas by using the ammonia-containing ammonium sulfate solution, and volatilizing ammonia in the process, therefore, the flue gas is desulfurized; the desulfurized ammonia-containing desulfurized flue gas is input into the decarburization tower to be subjected to water washing treatment, the ammonia water storage tank inputs ammonia water into the liquid storage area, the ammonia water in the liquid storage area is circularly conveyed to the decarburization area to be used for carrying out water washing on the ammonia-containing desulfurized flue gas to realize decarburization, and the decarburized flue gas enters the deamination area to be subjected to two-stage water washing treatment; the ammonia-containing decarburized flue gas subjected to two-stage water washing is input into an acid washing tower for acid washing, and ammonia in the flue gas is further removed; meanwhile, the liquid storage area conveys the mixed solution to the mineralization reactor. According to the invention, the desulfurization, decarbonization and mineralization functions are realized, the problem of ammonia escape is effectively solved, and the energy consumption of evaporative crystallization is reduced.

The invention discloses hydrogen production equipment and a hydrogen production method based on sodium-catalyzed ammonia cracking, and the hydrogen production equipment comprises a reactor which is a pressure-bearing shell and tube type heat exchange reactor and is internally provided with a plurality of heat exchange tubes filled with a sodium-based catalyst, two ends of the reactor are sealed through a first sealing cover and a second sealing cover, and the first sealing cover is connected with an ammonia storage tank; the second sealing cover is connected with a gas purification separator; the ammonia storage tank is used for storing liquid ammonia and supplying ammonia to the reactor through the booster pump; the gas purification separator is used for separating unreacted ammonia, nitrogen and hydrogen from emissions of the reactor; the temperature control system controls the reaction temperature by adjusting the flow of the heat source gas entering the reactor. A sodium-based catalyst is adopted, and in-situ regeneration of the catalyst is realized through a dynamic circular reaction mechanism; sodium serves as an intermediate medium and is continuously consumed and regenerated in the ammonia cracking process, external supplementation is not needed, the reaction path specificity is high, the byproduct generation rate is low, and the heat transfer efficiency is improved through the design of the countercurrent shell and tube type heat exchange reactor.

The invention discloses a small generator system with ammonia as a single fuel source, which relates to the technical field of generators and comprises an ammonia storage device, an ammonia cracker, a generator, an ammonia engine, a buffer tank, a plasma auxiliary ammonia burner, an air blower and a plasma power supply. According to the plasma auxiliary ammonia burner, primary air is activated through high-voltage discharge of the plasma power source, so that ammonia is ignited more easily, ignition can be conducted even if all inlet air is liquid ammonia in the initial starting stage of the plasma auxiliary ammonia burner, and the cold starting problem of a generator system is solved; after the generator system operates stably, the plasma power supply is turned off, additional plasma is not needed to assist ammonia combustion, self-sustaining ammonia combustion can be continued to provide heat for ammonia cracking, and the power consumption is reduced to a great extent. According to the self-formed closed-loop power generation system, on the premise that ammonia serves as a single fuel source, operation and power generation of the ammonia engine are achieved, the power generation requirement is met, and meanwhile carbon emission is effectively reduced.

This invention discloses a deep peak-shaving system and method for thermal power plants based on ammonia cracking hydrogen production coupled with deep utilization of waste heat. It relates to the field of thermal power generation and includes a gasifier, an ammonia cracking hydrogen production unit, a cooler, a separator, an ammonia storage tank, an ammonia-hydrogen storage system, a peak-shaving burner, and a boiler. This invention utilizes the waste heat of the thermal power boiler to vaporize liquid ammonia into gaseous ammonia. The ammonia cracking hydrogen production unit uses medium- and high-temperature waste heat or electrical energy, along with an ammonia cracking catalyst, to crack a portion of the ammonia gas, producing an ammonia-hydrogen-nitrogen mixture. This mixture is then separated by a separator to obtain an ammonia-hydrogen mixture. The ammonia-hydrogen mixture is mixed with ammonia gas to produce mixtures with different ammonia-hydrogen ratios, which are stored in the ammonia-hydrogen storage tanks. The ammonia-hydrogen ratio used in the burner is adjusted according to different loads to maintain stable combustion. This invention can maintain stable combustion in the burner under low loads, achieving deep peak-shaving of thermal power plants, and can also deeply utilize waste heat from thermal power plants, improving power generation efficiency.

The invention discloses a self-heating type ammonia decomposition hydrogen production system applied to a mobile terminal in the technical field of ammonia hydrogen production. The system comprises an ammonia storage tank, a heat exchanger, a pressurizer, an ammonia fuel engine, a self-heating type ammonia decomposition reactor, a hydrogen buffer tank and a tail gas aftertreatment device, in the ammonia decomposition hydrogen production reactor, ammonia gas in an ammonia storage tank and hydrogen generated by ammonia decomposition are mixed and combusted to supply heat; tail gas generated after mixed combustion of ammonia and hydrogen in the ammonia fuel engine and the self-heating type ammonia decomposition reactor is used for preheating ammonia gas to enter the ammonia decomposition reactor, and then the tail gas is discharged after being treated by the tail gas treatment device; ammonia gas is supplied in three paths and is respectively used for hydrogen production through ammonia decomposition, combustion in an engine and combustion heat supply in a reactor; and hydrogen is used in two paths and is used for supplying heat for ignition fuel in the engine and combustion in the reactor respectively. The system fully considers the use requirement of the mobile terminal and energy recycling, and has the characteristics of compact structure, high energy utilization rate, adaptation to an ammonia fuel engine and the like.

The invention provides a ternary precursor wastewater deamination method and device, and belongs to the technical field of wastewater treatment.The ternary precursor wastewater deamination device comprises a deamination system and an ammonia liquefaction system, the deamination system comprises a supergravity bed, a liquid inlet of the supergravity bed is connected with a wastewater preheating system, and a liquid outlet of the supergravity bed is connected with an ammonia liquefaction system; the liquid outlet is connected with the reboiling system, and the gas outlet is connected with the condensing system. The method comprises the following steps: adjusting the pH value of a wastewater raw material, heating, rectifying the heated wastewater raw material through a supergravity bed, reboiling the separated liquid, refluxing into the supergravity bed, condensing the separated gas, carrying out gas-liquid separation, and compressing and condensing the separated ammonia gas to obtain liquid ammonia; and the separated liquid flows back into the supergravity bed or enters the stronger ammonia water storage tank to be stored. The ammonia concentration of the deaminated wastewater is lower than 10mg / L, and concentrated ammonia water with the mass concentration of 15-20% and liquid ammonia with the purity of more than 99% can be recovered. Recycled stronger ammonia water and liquid ammonia can be reused for production.

The application discloses a low-NOx ammonia fuel combustion system based on plasma combustion support X The generated staged ammonia gas combustion system comprises a high-frequency high-voltage power supply, a dielectric barrier plasma generator, a gas distribution system (a blower and an ammonia storage tank), a combustion chamber and a swirler; the dielectric barrier plasma generator comprises a high-voltage electrode, an insulating medium, a swirler and a ground electrode; and the gas distribution system comprises a blower and an ammonia storage tank. The application utilizes dielectric barrier to generate ammonia gas plasma discharge, reduces the difficulty of ammonia gas combustion and improves the stability of ammonia gas combustion; utilizes the swirler to generate rotating airflow and improves the combustion efficiency; utilizes ammonia gas staged combustion to further reduce NOx emission; and the ideal staged ratio is that the volume ratio of ammonia gas plasma to side wall ammonia gas is 20% (10%-30%), so that the ammonia gas plasma can be fully discharged, and the ammonia sprayed from the side wall can also be fully combusted.

The invention provides a solid-state ammonia SOFC-PEMFC-GT hybrid power generation system and an operation method thereof. The solid-state ammonia SOFC-PEMFC-GT hybrid power generation system comprises a solid-state ammonia storage-hydrogen production composite module, a high-temperature proton exchange membrane fuel cell, a solid oxide fuel cell, a combustion chamber and a turbine, the solid ammonia storage-hydrogen production composite module is connected with a purifier for purifying hydrogen, the purifier is respectively communicated with the high-temperature proton exchange membrane fuel cell and the solid oxide fuel cell, and the tail gas output ends of the high-temperature proton exchange membrane fuel cell and the solid oxide fuel cell are respectively communicated with the input end of the combustion chamber; the combustion chamber is connected with a turbine which is connected with a generator. In the starting stage, the low-temperature starting of the solid oxide fuel cell is realized; in the stable operation stage, through efficient blending combustion of the combustion chamber, deep chemical heat regeneration is achieved through high-temperature waste gas, the turbine drives the power generator to generate power, and therefore efficient, reliable and green hybrid power generation circulation is achieved.

A multi-fuel vehicle has a cracker 110 that receives ammonia from an ammonia storage container 204, cracks it to form a cracked gas comprising hydrogen gas and nitrogen gas, and conveys the hydrogen gas to an engine 208 of the vehicle. An energy source, such as a battery 216, traction motor 212, alternator 210 or exhaust system 112, provides energy to the cracker. A controller (102, fig 1) receives a predefined route for the vehicle, predicts a future load demand of the vehicle based on the predefined route, and adjusts a flow rate of ammonia delivered to the cracker based on the future load demand. A method for operating an ammonia cracker in a vehicle also comprises combusting, by the engine, a cracked gas mixture comprising hydrogen gas. The predefined route may include an indication of a grade and a speed. The vehicle may have a hydrogen storage container 206 intermediate the cracker and the engine.

The application provides a liquid ammonia storage tank cleaning device and relates to the technical field of liquid ammonia storage.The device comprises a clamping mechanism for clamping a tank body, a mounting rack and a base frame, the clamping mechanism and the mounting rack are both mounted on the base frame, the mounting rack is provided with an extension mechanism, the end of the extension mechanism is rotatably provided with a frame body, a plurality of rotating frames are rotatably arranged on the frame body, and cleaning strips are arranged on the rotating frames; the rotating frames can rotate to push the cleaning strips close to the inner wall of the tank body, and the cleaning strips can deform along with the contour of the tank body and adhere to the inner wall of the tank body; the cleaning strips can be driven to be inclined or transversely arranged in the tank body by a driver; the rotating frames can rotate relative to the frame body and push the cleaning strips to move to the inner wall of the tank body and adhere to the inner wall of the tank body; the flexibility of the arc-shaped frame can make the cleaning strips deform when adhering to the inner wall of the tank body, so that the tank body is cleaned; the device can clean different vertical pipes and improve convenience for cleaning vertical, spherical and columnar tanks.

The present application relates to ammonia storage tank technical field, specifically to a kind of ammonia storage integrated tank device, including tank body and fixed assembly, tank body is placed on fixed assembly, the fixed assembly includes base and fixed mounting frame on base, two supporting sliding plates are slidably inserted in the mounting frame, and supporting sliding plate is fixedly connected with spring between mounting frame, by setting fixed assembly and clamping piece, the fixation of tank body and the fixation of remaining components can be completed while pushing tank body, while ensuring the stability of tank body, a large number of operation steps are reduced, the convenience of device use is improved, the cavity structure of clamping piece can help stabilize tank body temperature, absorb tank body temperature, while using cage cover piece and clamping piece in cooperation, the sealing of tank body pipe opening can be increased, and the storage safety of tank body is improved.

A system for recovering ammonia from an endothermic reaction in a subsurface formation may comprise a subsurface formation; a wellbore fluidly connected to the subsurface formation; a tubing string positioned within the wellbore, wherein the wellbore and an exterior of the tubing string together define a wellbore annulus; a wellhead comprising one or more injection lines and one or more return lines fluidly connected to the wellbore; one or more fluid injection pumps configured to supply an endothermic fluid composition to the subsurface formation through the one or more injection lines and the tubing string, the endothermic fluid composition operable to form ammonia when reacted; and one or more ammonia retention vessels fluidly connected to the return lines for receiving the ammonia through the wellbore annulus.

This application relates to an aftertreatment temperature control method, system, and vehicle. The aftertreatment temperature control method includes: determining the ammonia storage capacity of the catalytic converter and the particulate matter capture mass of the particulate matter trap; determining the aftertreatment inlet temperature of the aftertreatment equipment; determining the aftertreatment target temperature based on the aftertreatment inlet temperature, the ammonia storage capacity, and the particulate matter capture mass; and adjusting the aftertreatment temperature of the engine aftertreatment equipment based on the aftertreatment inlet temperature and the aftertreatment target temperature. This application comprehensively considers the aftertreatment inlet temperature, the ammonia storage capacity of the catalytic converter, and the particulate matter capture mass of the particulate matter trap to adjust the aftertreatment temperature of the aftertreatment equipment, achieving multi-factor coordinated control of the aftertreatment temperature, which is beneficial to improving aftertreatment capacity and reducing nitrogen oxide and particulate matter emissions.

A method and apparatus is provided for producing hydrogen in an steam methane reformer (SMR) via ammonia cracking, wherein the SMR can include a furnace (50), a pressure swing adsorption (PSA) unit, waste heat recovery sections (10, 90), and a water scrubber, wherein the furnace (50) has a plurality of SMR tubes and a plurality7 of burners. The method can include the steps of: withdrawing ammonia from an ammonia storage vessel; preheating the ammonia to form a warm ammonia stream; introducing the warm ammonia stream into the SMR tubes of the furnace (50) under conditions effective for catalytically cracking the ammonia, thereby forming a crude stream (53) comprising hydrogen, nitrogen, and unreacted ammonia; treating the crude stream (53) with a water wash in order to remove the unreacted ammonia from the crude stream (53), thereby resulting in an aqueous ammonia stream and a washed crude stream (103); and introducing the washed crude stream (103) into the PSA unit to produce a hydrogen product stream and a PSA off-gas.

The utility model discloses an ammonia leakage safety treatment system, which comprises an ammonia storage cabinet, an ammonia storage container, an ammonia leakage detection device, an ammonia leakage detection device and an ammonia leakage detection device, the spraying module comprises a liquid storage tank and a spraying head which are communicated with each other, and absorption liquid is stored in the liquid storage tank; wherein the absorption liquid comprises sodium bicarbonate; the monitoring module comprises an ammonia concentration sensor and a pH value sensor which are respectively arranged in the ammonia storage cabinet; the control module is respectively connected with the spraying module and the monitoring module; the control module is used for receiving information, collected by the ammonia concentration sensor, of ammonia leaked from the ammonia storage cabinet and controlling the spraying head to spray absorption liquid; and the controller is used for receiving the pH value information of the absorption liquid after ammonia gas absorption collected by the pH value sensor, and controlling the spray header to stop spraying the absorption liquid. The ammonia leakage treatment device solves the problems of waste of ammonia absorption liquid, low treatment efficiency and high treatment cost in the existing ammonia leakage treatment.

The application provides a method, device, storage medium and electronic equipment for preventing N2O generation. The method comprises: determining whether the real-time ammonia storage in the front-stage SCR is greater than the ammonia storage threshold when the temperature rise rate of the front-stage SCR is greater than the temperature rise rate threshold; determining whether the temperature of the DOC is in the preset temperature range when the real-time ammonia storage in the front-stage SCR is greater than the ammonia storage threshold; reducing the injection amount of the urea nozzle upstream of the front-stage SCR, or stopping the urea nozzle injection, or controlling the urea nozzle to delay injection, to prevent N2O generation due to the leakage of the front-stage SCR when the temperature of the DOC is in the preset temperature range and the temperature of the rear-stage SCR is greater than the temperature threshold. Based on the double-SCR aftertreatment system, the urea injection of the front-stage SCR is logically controlled to prevent NH3 leakage of the front-stage SCR caused by the sudden increase of the engine temperature, and the problem that NH3 is oxidized into N2O in the DOC is solved.

A mobile charging system comprising a mobile platform configured to be readily moved from a first location to a second location, an ammonia storage tank supported by the mobile platform, an ammonia cracker connected to the storage tank and supported by the mobile platform, a hydrogen fuel cell connected to the ammonia cracker and supported by the mobile platform, an electric storage connected to the hydrogen fuel cell and supported by the mobile platform, charging electronics connected to the electric storage and supported by the mobile platform, and at least one DC to DC electronic charging port supported by the mobile platform and configured to connect to the charging port of an electric vehicle.

The utility model belongs to the technical field of ammonia water preparation, and particularly relates to a multi-stage mixing device for preparing ammonia water by mixing liquid ammonia and water, which comprises a bottom plate, and an ammonia storage tank, a water storage tank and a return tank are sequentially arranged on the rear side of the top of the bottom plate from right to left. A jet mixer, a static mixer and a U-shaped pipe are sequentially arranged in the middle of the top side of the bottom plate from right to left, the jet mixer realizes high-speed hedging and mixing of liquid ammonia and water by utilizing a Venturi effect, and the static mixer further enhances turbulence disturbance through an internal spiral shunting element; the S-shaped structure of the U-shaped pipe prolongs the mixing path and ensures full contact of the two phases, meanwhile, the spiral cooling flow channel of the first cooling sleeve rapidly takes away reaction heat by increasing the contact area of a cooling medium and the mixing pipe, the partition plate of the second cooling sleeve divides the cooling cavity into two sections, and the cooling effect is good. And cooling water is guided to form vortex flow through the spiral guide vanes, so that the heat transfer efficiency is enhanced.

The invention provides an ammonia fuel multi-element utilization system of an ammonia-rich combustion engine and a control method of the ammonia fuel multi-element utilization system. The ammonia fuel multi-element utilization system comprises an engine unit, a post-processing unit, a hydrogen production unit, an ammonia storage tank and a hydrogen storage tank, the tail gas of the engine unit is connected with the post-treatment unit and is used for separating and extracting ammonia gas from the tail gas of the engine unit; the hydrogen production unit receives the ammonia gas prepared by the post-treatment unit and prepares hydrogen or ammonia-hydrogen mixed gas through ammonia gas cracking; the third ammonia branch and the fourth ammonia branch are controlled to be opened or closed through the electromagnetic valve so that ammonia can be selectively sprayed into the main combustion chamber in the subsequent stage, and the first hydrogen branch and the second hydrogen branch are controlled to be opened or closed through the electromagnetic valve so that hydrogen or ammonia-hydrogen mixed gas can be selectively introduced into the jet ignition device and / or the gas inlet channel.

The present disclosure provides a control method for high-pressure direct injection of liquid ammonia and an ammonia fuel supply system, the ammonia fuel supply system comprising a liquid ammonia storage module and a high-pressure injection module, the liquid ammonia storage module comprising a nitrogen source of a first air pressure, a liquid ammonia storage tank of a second air pressure, and a liquid ammonia buffer tank of a third air pressure; the control method comprises: using a liquid level gauge on the liquid ammonia buffer tank to measure the liquid level of the liquid ammonia in the liquid ammonia buffer tank in real time; when the liquid level does not meet a preset height range, controlling the working state of the solenoid valve to adjust the injection amount of nitrogen in the nitrogen source into the liquid ammonia storage tank, the injection amount of nitrogen can change the pressure difference between the liquid ammonia storage tank and the liquid ammonia buffer tank, so as to change the speed at which the liquid ammonia in the liquid ammonia storage tank is injected into the liquid ammonia buffer tank; when the liquid level meets the preset height range, pumping the liquid ammonia in the liquid ammonia buffer tank to the high-pressure injection module according to a preset supply amount; the high-pressure injection module injects the preset supply amount of liquid ammonia into the engine cylinder for combustion and work.

The utility model relates to a kind of liquid ammonia meterable conveying devices, it includes: industrial ammonia storage tank, the industrial ammonia storage tank has industrial gas phase mouth and industrial liquid phase mouth;Vehicle-mounted liquid ammonia tank, the vehicle-mounted liquid ammonia tank has vehicle-mounted gas phase mouth and vehicle-mounted liquid phase mouth;Liquid ammonia delivery component, the liquid ammonia delivery component includes one end with the industrial liquid phase mouth is connected and the other end with the vehicle-mounted liquid phase mouth is connected liquid ammonia delivery pipe, liquid ammonia pump is installed on the liquid ammonia delivery pipe, pressure transmitter one is installed on the liquid ammonia delivery pipe and located in the liquid ammonia pump upstream, pressure transmitter three is installed on the liquid ammonia delivery pipe and located in the liquid ammonia pump downstream, check valve is installed on the liquid ammonia delivery pipe and located between the liquid ammonia pump and the pressure transmitter three and flowmeter is installed on the liquid ammonia delivery pipe and located between the check valve and the pressure transmitter three.Thus can improve filling efficiency, and liquid ammonia utilization is higher.

The invention provides a urea consumption control method, a urea consumption control device, urea consumption control equipment and a storage medium. The urea consumption control method comprises the following steps: determining a first aging state coefficient of an SCR carrier based on all temperature values and temperature retention time; determining a second aging state coefficient of the SCR carrier based on the whole vehicle mileage and the first map table; weighting the first aging state coefficient and the second aging state coefficient to obtain a third aging state coefficient; the smaller value in the first aging state coefficient and the third aging state coefficient is determined as a target aging state coefficient, the ammonia storage capacity of the SCR carrier considering the aging influence is determined based on the target aging state coefficient, an ammonia storage target value is determined according to carrier ammonia storage, and the urea injection amount is adjusted according to the ammonia storage target value. According to the method, the influence of the vehicle driving mileage on aging is considered, the new aging state coefficient is determined, finally, calculation of the ammonia storage capacity of the SCR carrier is corrected based on the aging state coefficient, the urea injection amount is adjusted, and the effect of reducing the urea consumption in the early stage of the vehicle service life is achieved.

The invention discloses a highway self-consistent energy system based on ammonia energy storage and an operation method of the highway self-consistent energy system, and belongs to the technical field of comprehensive energy systems. The system comprises an energy supply part, an electricity-hydrogen conversion unit, an ammonia energy storage unit, a multi-energy flow load part and a cascade energy utilization unit, the cascade energy utilization unit comprises a solid oxide fuel cell module, a micro gas turbine, a waste heat boiler and a heat storage tank; the solid oxide fuel cell module uses ammonia in an ammonia storage tank for first-stage power generation; high-temperature waste gas is guided into the micro gas turbine for second-stage power generation; medium and low temperature waste heat discharged by the micro gas turbine is captured by the waste heat boiler and stored in the heat storage tank; and heat energy in the heat storage tank is used for cold-state start preheating of the ammonia synthesis module in the ammonia energy storage unit by a start preheating loop. According to the system, energy gradient utilization of first-stage power generation, second-stage power generation and third-stage heat supply is achieved, the multi-energy flow load requirements of electricity, heat and hydrogen can be met at the same time, and the total energy efficiency, the self-consistent rate and the green low-carbon level of the system are greatly improved.

The embodiment of the utility model relates to the technical field of space propulsion, and discloses a high-integration-level liquid ammonia propulsion system for satellites. Comprising a liquid ammonia storage box, the liquid ammonia storage box comprises a shell and an ammonia storage cavity, an ammonia conveying channel is arranged in the shell and communicated with the ammonia storage cavity, and a first inserting cavity, a second inserting cavity, a third inserting cavity and a fourth inserting cavity with one ends penetrating through the outer surface of the shell are formed in the shell; the first inserting cavity, the second inserting cavity, the third inserting cavity and the fourth inserting cavity are sequentially communicated through ammonia conveying channels, an electromagnetic valve assembly is arranged in the first inserting cavity, a pressure reducing valve is arranged in the second inserting cavity, a heater is arranged in the third inserting cavity, and a nozzle is arranged in the fourth inserting cavity. According to the high-integration-level liquid ammonia propelling system for the satellites, the weight and the size of the whole system are reduced through the integrated design, the internal heating and dual-redundancy electromagnetic valve design is adopted, the heat transfer efficiency is improved, and the long-term stability of the whole system is improved.