CN109236400A - A kind of hydrogen nitrogen mixed working fluid electricity generation system - Google Patents

A kind of hydrogen nitrogen mixed working fluid electricity generation system Download PDF

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Publication number
CN109236400A
CN109236400A CN201811225089.6A CN201811225089A CN109236400A CN 109236400 A CN109236400 A CN 109236400A CN 201811225089 A CN201811225089 A CN 201811225089A CN 109236400 A CN109236400 A CN 109236400A
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China
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hydrogen
outlet
reaction bed
nitrogen
heat
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贾鹏
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Shanghai Ke Laipu Energy Technology Co Ltd
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Shanghai Ke Laipu Energy Technology Co Ltd
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Priority to CN201811225089.6A priority Critical patent/CN109236400A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/10Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00General layout or general methods of operation of complete plants
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K15/00Adaptations of plants for special use
    • F01K15/02Adaptations of plants for special use for driving vehicles, e.g. locomotives
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/02Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

The present invention relates to a kind of hydrogen nitrogen mixed working fluid electricity generation systems, including hydrogen reaction bed unit, liquid nitrogen converter, gaseous mixture expanding machine, band liquid expanding machine, pure Hydrogen-Expansion Machine, generator, suction hydrogen separative unit, drainage injector and liquid nitrogen surge tank.Hydrogen reacts the high pressure hydrogen outlet of bed unit through high pressure hydrogen piping connection to drainage injector, and liquid nitrogen converter is connected to drainage injector.Drainage injector is connected to the gaseous mixture entrance for inhaling hydrogen separative unit by gaseous mixture expanding machine, the nitrogen outlet for inhaling hydrogen separative unit is connected to band liquid expanding machine, hydrogen outlet is connected to the low pressure hydrogen entrance of hydrogen reaction bed through pure Hydrogen-Expansion Machine all the way, and another way is connected to the circulating hydrogen entrance of drainage injector by hydrogen gas circulating pump.The lime set entrance of liquid nitrogen converter is connected to by liquid nitrogen surge tank and force (forcing) pump with liquid expanding machine.Thermal energy, for cycle fluid, is mechanical energy and electric energy using the Nature energy and industrial exhaust heat, is beneficial to energy conservation emission reduction, creates economic benefit by the present invention with hydrogen, nitrogen etc..

Description

A kind of hydrogen nitrogen mixed working fluid electricity generation system
Technical field
The invention belongs to total energy approach technical fields, are related to a kind of hydrogen nitrogen mixed working fluid electricity generation system.
Background technique
Nature is filled with the unlimited room temperature energy, and an unbounded quantity of room temperature energy such as air, seawater has potentiality to be exploited. The tellurian energy overwhelming majority is from the sun, in today that the energy is increasingly in short supply, new renewable green clean power skill Art is paid more and more attention.In present new energy, water energy and wind energy power technology application are more universal, and technology is also more mature.Water Electric potentiality to be exploited is little, and wind-force excessively disperses, can only be useful in some specific regions, and water energy and wind electricity generating system Investment is very big, and occupied area is wide.Air can step into the visual field of people, and air energy water heater has also obtained generally at present Using principle is exactly to pass through heat pump water using the thermal energy in air.But utilize the technology of air energy power-generating very Few, technology is not mature enough, it is difficult to promote and apply.
Authorization Notice No. is CN202055876U, and authorized announcement date is the Chinese utility model patent on November 30th, 2011 Disclose a kind of new energy solar-powered thermal supercritical low-temperature air energy power generator.Including heat dump, expansion power generation unit, return Hot device, cooler, booster pump, refrigeration machine and its conduit fittings and device is detected and controlled, there is nitrogen or mixing in closed system Working medium.Working medium becomes high-pressure supercritical fluid through heat dump, and expanded generating set acting power generation becomes critical state working medium, warp Regenerator, cooler condensation are pumped into regenerator heat exchange by pressurization and absorb heat into heat dump form closed circulation electricity generation system again.It It can be used for low temperature heat resource power generation in waste heat waste heat underground heat etc., working medium carbon dioxide or mixed working fluid.The utility model is special Air can be converted to the kinetic energy of pushing generator group rotation by benefit, but because cooler condensation needs to consume energy, system energy Amount conversion ratio is lower, and generator power output is smaller, and actual promotional value is limited.
Summary of the invention
The object of the present invention is to provide a kind of hydrogen and nitrogen gas body mixed working fluid electricity generation system, pass through following for hydrogen and other working medium Ring, using air heat by energy transitions be mechanical energy drive electrical power generators, make full use of the Nature energy and Industrial exhaust heat, energy-saving and emission-reduction increase Business Economic Benefit.
The technical scheme is that among hydrogen nitrogen mixed working fluid electricity generation system, including hydrogen reaction bed unit, No. 1 hydrogen Tank, liquid nitrogen converter, air heat-exchange pipeline, No. 2 hydrogen pans and air heat exchanger.Hydrogen reacts every hydrogen reaction of bed unit Bed is respectively equipped with low pressure hydrogen import, high pressure hydrogen outlet, heat exchange hydrogen inlet and heat exchange hydrogen outlet.Liquid nitrogen converter is equipped with Heat exchange coil, lime set entrance and high pressure nitrogen outlet.The heat exchange hydrogen outlet of hydrogen reaction bed unit hydrogen reaction bed passes through triple valve It is divided into two-way, passes sequentially through heat transferring medium low pressure hydrogen circulating pump, No. 1 hydrogen pans, liquid nitrogen through cooled hydrogen pipeline all the way The heat exchange coil and triple valve of gasifier are connected to the heat exchange hydrogen inlet of hydrogen reaction bed, form cooling circuit;Another way is through adding Hot hydrogen pipeline passes sequentially through heat transferring medium high pressure hydrogen circulating pump, No. 2 hydrogen pans, the tube side of air heat exchanger and threeway Valve is connected to the heat exchange hydrogen inlet of hydrogen reaction bed, forms heating circuit.Shell of the air heat-exchange piping connection to air heat exchanger The shell-side outlet of journey entrance, air heat exchanger is communicated with the atmosphere.System is additionally provided with gaseous mixture expanding machine, band liquid expanding machine, pure hydrogen Expanding machine, No. 2 generators, No. 3 generators, inhales hydrogen separative unit, drainage injector and liquid nitrogen surge tank at generator.Gaseous mixture Expanding machine is connect with generator shaft, and band liquid expanding machine is connect with No. 2 generator shafts, and pure Hydrogen-Expansion Machine is connect with No. 3 generator shafts, Generator, No. 2 generators and No. 3 generators and battery and external electrical network circuit connection.It drains injector and is equipped with High Pressure Hydrogen Gas entrance, high pressure nitrogen entrance, circulating hydrogen entrance and mixed gas outlet inhale hydrogen separative unit and are equipped with gaseous mixture entrance, nitrogen Outlet and hydrogen outlet.Hydrogen reacts high pressure of the high pressure hydrogen outlet of bed unit through high pressure hydrogen piping connection to drainage injector Hydrogen inlet, the high pressure nitrogen outlet of liquid nitrogen converter are connected to the high pressure nitrogen entrance of drainage injector.Drain injector Mixed gas outlet is connected to the entrance of gaseous mixture expanding machine, and the outlet of gaseous mixture expanding machine is connected to the mixing for inhaling hydrogen separative unit Gas entrance, the nitrogen outlet for inhaling hydrogen separative unit are connected to the entrance with liquid expanding machine, inhale the hydrogen outlet point of hydrogen separative unit For two-way, the low pressure hydrogen entrance by pure Hydrogen-Expansion Machine through low pressure hydrogen piping connection to hydrogen reaction bed, another way are logical all the way Cross the circulating hydrogen entrance that hydrogen gas circulating pump is connected to drainage injector.Outlet with liquid expanding machine is connected to liquid nitrogen surge tank Entrance, the outlet of liquid nitrogen surge tank pump the lime set entrance that liquid nitrogen converter is connected to through lime set pipeline by liquid pressing.
It inhales hydrogen separative unit to be equipped at least two metal hydride reaction beds and inhale hydrogen separation heat exchanging device, inhales hydrogen separation heat exchanging Device is connected by circulation with every metal hydride reaction bed.Allow to be arranged by the formation of multiple groups suction hydrogen separative unit serial or parallel connection Combination guarantees continuous, stable offer hydrogen and nitrogen.Film knot is arranged in the nitrogen outlet and hydrogen outlet for inhaling hydrogen separative unit Structure, the membrane structure of nitrogen outlet only allow nitrogen to pass through and flow out to inhale hydrogen separative unit, and the membrane structure of hydrogen outlet only allows hydrogen Gas, which passes through and flows out, inhales hydrogen separative unit.
Hydrogen reacts bed unit and is equipped at least two hydrogen reaction beds, and every hydrogen reaction bed is respectively equipped with low pressure hydrogen import, height Press hydrogen outlet, heat exchange hydrogen inlet and heat exchange hydrogen outlet.Low pressure hydrogen import is equipped with low pressure hydrogen imported valve, High Pressure Hydrogen Gas outlet is equipped with high pressure hydrogen outlet valve, and heat exchange hydrogen inlet and heat exchange hydrogen outlet are respectively equipped with triple valve.Hydrogen reaction bed Unit can be set as multistage according to hydrogen release heat source temperature.
Lime set working medium in lime set pipeline is stable inorganic working medium or organic working medium or liquid nitrogen or inert gas or positive fourth Alkane or propane;It is described to be made lime set working medium efficient liquefaction and reliably other to suction hydrogen process offer cooling capacity with liquid expansion function Liquefaction device replacement.Metal hydrogen storage material, including but not limited to Rare Earth metal hydride are loaded in hydrogen reaction bed;Low pressure hydrogen Hydrogen reaction bed is entered by low pressure hydrogen entrance, low pressure hydrogen is absorbed to form metal hydride by hydrogen storage material, after completing suction hydrogen Metal hydride heating release high pressure hydrogen;The hydrogen reaction bed is primary structure, or the multistage of heat is utilized for ladder Structure allows kind, quality or the volume of the metal hydride in each hydrogen reaction bed in every grade of hydrogen reaction bed can be different Sample, every grade of hydrogen reaction bed can be same or different.Hydrogen reaction bed is changed using circulatory mediator with heat medium partition or non-partition Heat, heat medium be air, flue gas, seawater, river water, lake water, gaseous heating medium, liquid heating medium, solid heat medium, Two or two mixing or three-phase Hybrid Heating medium between gas-liquid-solid, the high pressure or low pressure recycle medium that hydrogen reaction bed uses include hydrogen But it is not limited to hydrogen, hydrogen reaction bed is directly entered and is heated or moved heat, or by the way of electricity, electromagnetism or internal heating, or By the way of external heat, or simultaneously by the way of interior external heat, circulatory mediator is hydrogen or other stables;If empty Gas is rare product, and multistage can be set in hydrogen reaction bed.
Hydrogen reaction bed is provided with metal hydride more changing device, and the metal hydride of dusting in production process or aging is fast Speed, which removes simultaneously to replace, loads new metal hydride, using the material inhaled in hydrogen release intermittent time quick-replaceable hydrogen reaction bed, The material in replacement hydrogen reaction bed can be shut down, the material being replaced, which can be, inhales hydrogen state, is also possible to hydrogen release state, can also To be the transition state for inhaling hydrogen release.The hydrogen reaction bed that hydrogen reacts bed unit is equipped with used metal hydride outlet port and fresh Mouth is added in metal hydride, and metal hydride more changing device includes fresh metal hydride storehouse and used metal hydride Storehouse, used metal hydride outlet port is connected to used metal hydride storehouse by sealing valve and drawing pump, fresh Metal hydride storehouse is connected to hydrogen reaction bed by addition pump and sealing valve.Metal hydride more changing device is defeated using gravity It send, mechanical conveying, pneumatic conveying, vacuum handling, the method or their combination that fluid power conveys, electromagnetism conveys, thus reliably Realize that any method of metal hydride replacement in hydrogen reaction bed is all suitable for.Liquid nitrogen converter is simple mixing arrangement or combination The mixing apparatus of formula is provided with and including but not limited to uses push rod, pull rod, vacuum system etc. mechanical and/or electrical system device, Guarantee that hydrogen outlet obtains the continuous gas of flow of the parameter stability including pressure, temperature.In air heat-exchange pipeline Air can be replaced by room temperature or low temperature solid-state, liquid, gaseous other media.
Hydrogen and nitrogen gas body mixed working fluid electricity generation system of the present invention, by with hydrogen, nitrogen etc. for cycle fluid, using air from The heat of body drives gaseous mixture expanding machine by working medium circulation and does work with liquid expanding machine, is mechanical energy drive by thermal energy Electrical power generators or driving equipment take full advantage of the Nature energy and industrial exhaust heat, are beneficial to energy conservation emission reduction and create economical Benefit.Electrical power generators are driven for mechanical energy by energy transitions using the heat of air, are beneficial to energy conservation emission reduction increase Business Economic Benefit.Hydrogen mixed working fluid dynamical system of the present invention is mounted on the vehicles such as steamer, can use seawater etc. Energy entrained by other natural materials drives gaseous mixture expanding machine by working medium circulation and does work with liquid expanding machine, by thermal energy It is changed into mechanical energy driving vehicles operation, realizes green traffic.Mixed working fluid dynamical system equipment is suitable through the invention When the UTILIZATION OF VESIDUAL HEAT IN that flue gas etc. carries thermal energy exhaust gas, expansion application range may be implemented in replacement.
Detailed description of the invention
Fig. 1 is the flow diagram of hydrogen nitrogen mixed working fluid electricity generation system of the present invention;
Fig. 2 is the structural schematic diagram that hydrogen reacts bed unit;
Fig. 3 is hydrogen reaction bed metal hydride more changing device figure.
Wherein: 1-hydrogen reacts bed unit, 2-liquid nitrogen converters, 3-gaseous mixture expanding machines, 4-band liquid expanding machines, 5- Hydrogen separative unit, 7-liquid pressings pump, 8-drainage injectors, 9-low pressure hydrogen pipelines, 10-High Pressure Hydrogens are inhaled in generator, 6- Air pipe, 11-lime set pipelines, 12-air heat-exchange pipelines, 13-heat transferring medium low pressure hydrogen circulating pumps, 14-hydrogen circulation Pump, 15-batteries, 16-liquid nitrogen surge tanks, 17-heat exchange coils, 18-valves, 19-low pressure hydrogen imported valves, 20- Hydrogen separation heat exchanging device, 23-fresh metal hydrogen are inhaled in high pressure hydrogen outlet valve, 21-heat transferring medium high pressure hydrogen circulating pumps, 22- Compound storehouse, 24-used metal hydride storehouses, 25-cooled hydrogen pipelines, 26-heating hydrogen pipelines, 27-No. 1 hydrogen Pans, 28-No. 2 hydrogen pans, 29-air heat exchangers, 30-triple valves, 31-low pressure hydrogen imports, 32-high pressures It is hydrogen outlet, 33-heat exchange hydrogen inlets, 34-heat exchange hydrogen outlets, 35-metal hydride reaction beds, 36-used Metal hydride outlet port, 37-fresh metal hydride be added mouth, 38-sealing valves, 39-addition pumps, 40-drawing pumps, No. 1 hydrogen reaction bed of A-, No. 2 hydrogen reaction beds of B-, No. 3 hydrogen reaction beds of C-, 40-No. 2 generators, 43-No. 3 generators, 44- Pure Hydrogen-Expansion Machine.
Specific embodiment
Below with reference to embodiment and attached drawing, the present invention is described in detail.The scope of protection of the present invention is not limited to the embodiment, Those skilled in the art make any change within the scope of the claims and also belong to the scope of protection of the invention.
Embodiment 1
Hydrogen nitrogen mixed working fluid electricity generation system of the present invention is as shown in Figure 1, include that hydrogen reacts bed unit 1, liquid nitrogen converter 2, gaseous mixture Expanding machine 3, generator 5, inhales hydrogen separative unit 6, drainage injector 8, liquid nitrogen surge tank 16, hydrogen gas circulating pump at band liquid expanding machine 4 14, air heat-exchange pipeline 12, cooled hydrogen pipeline 25, the heating hydrogen pans 27,2 of hydrogen pipeline 26,1 hydrogen pans 28, air heat exchanger 29, heat transferring medium high pressure hydrogen circulating pump 21, heat transferring medium low pressure hydrogen circulating pump 13 and liquid pressing pump 7.Gaseous mixture expanding machine 3 and 5 axis connection of generator, band 40 axis connection of liquid expanding machine 4 and No. 2 generator, pure Hydrogen-Expansion Machine 44 and 3 Number 43 axis connection of generator, generator, No. 2 generators and No. 3 generators and battery 15 and external electrical network circuit connection, hair Motor electricity part is sent to battery 15 and uses by oneself, remaining outer confession that is connected to the grid.Liquid nitrogen converter 2 is equipped with heat exchange coil 17, coagulates Liquid entrance and high pressure nitrogen outlet.As shown in Fig. 2, hydrogen reaction bed unit 1 is equipped with three hydrogen reaction beds, No. 1 hydrogen reaction bed A, No. 2 Hydrogen reaction bed B and No. 3 hydrogen reaction bed C, every hydrogen reaction bed are equipped with low pressure hydrogen entrance 31, high pressure hydrogen outlet 32, heat exchange hydrogen Gas entrance 33, heat exchange hydrogen outlet 34.The low pressure hydrogen entrance 31 of every hydrogen reaction bed is connect with low pressure hydrogen pipeline 9, and every The high pressure hydrogen outlet 32 of hydrogen reaction bed is connect with high pressure hydrogen pipeline 10.The heat exchange hydrogen outlet 34 of every hydrogen reaction bed is through three Port valve 30 is divided for two-way, and a-road-through supercooling hydrogen pipeline 25 is connected to heat transferring medium low pressure hydrogen circulating pump 13, heat transferring medium The outlet of low pressure hydrogen circulating pump 13 successively connects through No. 1 hydrogen pans 27, the heat exchange coil 17 of liquid nitrogen converter 2 and triple valve 30 It is connected to the heat exchange hydrogen inlet 33 of hydrogen reaction bed, forms cooling circuit.Another way is by heating hydrogen pipeline 26 successively through exchanging heat 21, No. 2 hydrogen pans 28 of medium high pressure hydrogen circulating pump, the tube side of air heat exchanger 29 and triple valve 30 are connected to hydrogen reaction The heat exchange hydrogen inlet 33 of bed forms heating circuit.Air heat-exchange pipeline 12 is connected to the shell side inlet of air heat exchanger 29, empty The shell-side outlet of gas heat exchanger 29 is communicated with the atmosphere.Hydrogen separative unit 6 is inhaled to go out equipped with gaseous mixture entrance, hydrogen outlet and nitrogen Mouthful.It inhales hydrogen separative unit 6 to be equipped with two metal hydride reaction beds 35 and inhale hydrogen separation heat exchanging device 22, inhales hydrogen separation heat exchanging device 22 It is connected by circulation with two metal hydride reaction beds 35.Drainage injector 8 is equipped with high pressure hydrogen entrance, high pressure nitrogen entrance, follows Ring hydrogen inlet and mixed gas outlet.The high pressure hydrogen outlet 32 of hydrogen reaction bed is connected to drainage injection through high pressure hydrogen pipeline 10 The high pressure hydrogen entrance of device 8.The high pressure nitrogen outlet of liquid nitrogen converter 2 is connected to the high pressure nitrogen entrance of drainage injector 8, draws The mixed gas outlet of stream injector 8 is connected to the entrance of gaseous mixture expanding machine 3, and the outlet of gaseous mixture expanding machine 3 is connected to suction hydrogen The gaseous mixture entrance of separative unit 6.The nitrogen outlet for inhaling hydrogen separative unit 6 is connected to the entrance with liquid expanding machine 4;Inhale hydrogen separation The hydrogen outlet of unit 6 is divided into two-way, is connected to the low of hydrogen reaction bed by pure Hydrogen-Expansion Machine 44 through low pressure hydrogen pipeline 9 all the way Hydrogen inlet 31 is pressed, another way is connected to the circulating hydrogen entrance of drainage injector 2 by hydrogen gas circulating pump 14.Band liquid expanding machine 4 outlet is connected to the entrance of liquid nitrogen surge tank 16, and the outlet of liquid nitrogen surge tank is connected to liquid pressing and pumps 7 entrances, and liquid adds The outlet of press pump 7 is connected to the lime set entrance of liquid nitrogen converter 2 by lime set pipeline 11.
Hydrogen reacts bed unit 1 and is equipped with multiple hydrogen reaction beds alternately suction/hydrogen release process, is filled with rare earth in hydrogen reaction bed It is metal hydride.When hydrogen reaction bed hydrogen release, exchange heat hydrogen inlet and the hydrogen outlet company that exchanges heat are made by the switching of triple valve 30 Logical heating hydrogen pipeline 26, simultaneously closes off low pressure hydrogen imported valve 19 and opens high pressure hydrogen outlet valve 20, heat transferring medium Hydrogen is by entering hydrogen reaction bed after air heat exchanger and surrounding air heat exchange heating, so that hydrogen reaction bed absorbs heat at 0 DEG C Amount releases high pressure hydrogen, to hydrogen reaction bed can be made to release high pressure hydrogen to provide heat when hydrogen reaction bed hydrogen release using air. Ambient air temperature into air heat exchanger is 20 DEG C, and 5 DEG C of outlets are cooled to after heat exchange.When hydrogen reaction bed inhales hydrogen, pass through three The switching of port valve 30 makes heat exchange hydrogen inlet be connected to cooled hydrogen pipeline 25 with the hydrogen outlet that exchanges heat, and simultaneously closes off high pressure hydrogen and goes out Mouthful valve 20 simultaneously opens low pressure hydrogen imported valve 19, heat transferring medium hydrogen by the heat exchange coil 17 of liquid nitrogen converter 2 with into Enter hydrogen reaction bed after entering the liquid nitrogen heat exchange cooling of liquid nitrogen converter 2, so that hydrogen reaction bed is carried out inhaling hydrogen and be released at -80 DEG C Reaction heat, and hydrogen abstraction reaction heat is passed into liquid nitrogen converter 2 and is used for its liquid nitrogen vaporization, while making the suction in hydrogen reaction bed Hydrogen temperature is maintained at -80 DEG C, realizes that inhaling stablizing for hydrogen operation carries out.
Hydrogen reaction bed and suction hydrogen separative unit are provided with metal hydride more changing device, by dusting in production process or always The metal hydride of change, which is quickly moved out and replaces, loads new metal hydride, and using inhaling, hydrogen release intermittent time quick-replaceable hydrogen is anti- The material in bed is answered, the material in replacement hydrogen reaction bed can also be shut down, the material being replaced, which can be, inhales hydrogen state, can also be with It is hydrogen release state, is also possible to inhale the transition state of hydrogen release.Metal hydride more changing device is defeated using gravity conveying, machinery It send, the method or their combination of the conveying of pneumatic conveying, vacuum handling, fluid power, electromagnetism conveying, to reliably realize hydrogen reaction Any method of metal hydride replacement is all suitable in bed.
As shown in figure 3, the hydrogen reaction bed of hydrogen reaction bed unit 1 is equipped with used metal hydride outlet port 36 and fresh Mouth 37 is added in metal hydride, and the metal hydride more changing device includes fresh metal hydride storehouse 23 and used metal Hydride storehouse 24, the used metal hydride outlet port 36 are connected to used by sealing valve 38 and drawing pump 40 Metal hydride storehouse 24, fresh metal hydride storehouse 23 are connected to the fresh gold of hydrogen reaction bed by addition pump 39 and sealing valve 38 Belong to hydride and mouth 37 is added.Metal hydride more changing device or using gravity conveying, mechanical conveying, pneumatic conveying, vacuum handling, The method or their combination of fluid power conveying, electromagnetism conveying, to reliably realize metal hydride replacement in hydrogen reaction bed Any method is all suitable for.
The operational process of metal hydride more changing device are as follows: when needing replacing metal hydride, first close fresh metal hydrogen The sealing valve 38 of mouth 37 is added in compound, and the sealing valve 38 of the metal hydride outlet port 36 opened and used starts drawing pump 40 Used metal hydride is conveyed from hydrogen reaction bed to used metal hydride storehouse 24;Used gold in hydrogen reaction bed After belonging to hydride extraction, the sealing valve 38 of used metal hydride outlet port 36 is closed, fresh metal hydride is opened and adds The sealing valve 38 of entrance 37, starting addition pump 39 are added fresh metal hydrogenation from fresh metal hydride storehouse 23 into hydrogen reaction bed Object closes the sealing valve 38 that mouth 37 is added in fresh metal hydride after having added.Hydrogen separative unit is inhaled referring to above-mentioned hydrogen reaction bed The metal hydride more changing device of metal hydride reaction bed is set.
The course of work that hydrogen reacts bed unit includes inhaling hydrogen process I, inhaling hydrogen process II and hydrogen release process;Every hydrogen reaction bed Work press inhale hydrogen process I-inhale II-hydrogen release of hydrogen process process-suction hydrogen process I sequence recycled.With hydrogen reaction bed Unit is arranged for three hydrogen reaction beds, and each period has a hydrogen reaction bed to be respectively at suction hydrogen process I, inhale hydrogen process II and hydrogen release process.
Inhale hydrogen process I:
Hydrogen reaction bed enters suction hydrogen process I after terminating hydrogen release process, and hydrogen reaction bed is first closed high pressure hydrogen outlet valve 20 and led to The switching for crossing triple valve 30 makes heat exchange hydrogen inlet be connected to cooled hydrogen pipeline 25 with the hydrogen outlet that exchanges heat, and is then turned on pressure hydrogen Gas imported valve 19, heat transferring medium hydrogen and low pressure hydrogen are directly entered hydrogen reaction bed and are cooled down, and hydrogen is anti-after being cooled to -80 DEG C Bed is answered to start to inhale hydrogen, the heat for inhaling hydrogen releasing is taken away by heat transferring medium hydrogen passes to the evaporation liquid nitrogen use of liquid nitrogen converter 2.
Inhale hydrogen process II:
Hydrogen process II is inhaled to continue to inhale the suction hydrogen operation of hydrogen process I.
Hydrogen release process:
Hydrogen reaction bed enters hydrogen release process after inhaling hydrogen process II, and hydrogen reaction bed first closes low pressure hydrogen imported valve 19, so Heat exchange hydrogen inlet is set to be connected to heating hydrogen pipeline 26, heat transferring medium hydrogen with the hydrogen outlet that exchanges heat by the switching of triple valve 30 afterwards By being directly entered hydrogen reaction bed after air heat exchanger and surrounding air heat exchange heating, hydrogen reaction bed is added gas by heat transferring medium hydrogen Heat after pressure reaches setting pressure in hydrogen release to hydrogen reaction bed, is opened high pressure hydrogen outlet valve 20 and is sent to hydrogen release is started after 0 DEG C High pressure hydrogen out.
Heat is utilized for ladder, the hydrogen reaction bed unit in the present embodiment can be set to two-stage or multilevel structure, root There is the hydrogen reaction bed of different hydrogen storage materials according to thermal temperature selection, realize the suction hydrogen release of different temperatures, while upper level hydrogen is anti- The use of next stage hydrogen reaction bed hydrogen release can be supplied to by answering bed to inhale the heat that hydrogen is released.
First by from the 3.3MPa of liquid nitrogen surge tank 16, -148 DEG C of liquid nitrogen is forced into 10MPa through liquid pressing pump and is sent into Liquid nitrogen converter, liquid nitrogen in liquid nitrogen converter 2 by heat exchange coil absorb hydrogen react when bed unit inhales hydrogen the heat released into Promoting the circulation of qi obtains the high pressure nitrogen of 10MPa after gasification;The high pressure nitrogen of 10MPa and while reacting bed unit 1 hydrogen release by hydrogen, release 0 DEG C, 15MPa high pressure hydrogen is sent to the high pressure hydrogen entrance and high pressure nitrogen entrance of drainage injector 8 respectively, passes through multi-injection 9.2MPa will be forced into from the circulating hydrogen drainage of -134 DEG C of hydrogen gas circulating pump 14,8MPa;9.2MPa, -129 DEG C of hydrogen nitrogen Gaseous mixture is sent into 3 expansion work of gaseous mixture expanding machine, and gaseous mixture expanding machine 3 drives generator operation to generate electricity.
9.2MPa, -129 DEG C of hydrogen nitrogen mixed gas expansion work in gaseous mixture expanding machine 3 are sent into 8MPa after -134 DEG C Inhale hydrogen separative unit.The setting of hydrogen separative unit is inhaled there are two metal hydride reaction bed, is mounted in metal hydride reaction bed The material of the formation metal hydride of hydrogen can be absorbed, it is another while a metal hydride reaction bed inhale hydrogen operation One progress hydrogen release operation;Two metal hydride reaction beds can alternately inhale hydrogen/hydrogen release operation, carry out inhaling hydrogen behaviour when one The metal hydride reaction bed of work switchs to carry out hydrogen release operation after completing to inhale the hydrogen operation timing, another carries out hydrogen release operation Metal hydride reaction bed then switchs to inhale hydrogen operation after completing the hydrogen release operation timing.Hydrogen nitrogen mixed gas, which is sent into, inhales hydrogen separation Carrying out inhaling the metal hydride reaction bed of hydrogen operation in unit, hydrogen is absorbed, and it is single that the nitrogen isolated is inhaled hydrogen separation The nitrogen outlet of member is sent to band liquid expanding machine;Another metal hydride reaction bed for carrying out hydrogen release operation releases hydrogen simultaneously Gas, the 8MPa of releasing, -134 DEG C hydrogen a part are sent after low pressure hydrogen pipeline 9 is expanded to 4MPa by pure Hydrogen-Expansion Machine 44 It returns to hydrogen reaction bed unit and inhales hydrogen recycling for it, another part returns to drainage injector 8 by hydrogen gas circulating pump 14 and recycles It uses;It is equipped with heat exchanger 22 between two metal hydride reaction beds, is supplied by heat exchanger by the heat released when hydrogen operation is inhaled It is used when being operated to hydrogen release.
8MPa, -134 DEG C of nitrogen continue expansion work in band liquid expanding machine 4, due under constant temperature in expansion process Drop all liquefies in band liquid expanding machine 4 when nitrogen expansion is to 3.3MPa.3.3MPa, -148 DEG C of liquid nitrogen is by liquid pressing pump 7 Send the recycling of liquid nitrogen converter 2 back to.The operation of the present embodiment realizes and can be carried out power generation using air, and efficiency can reach To 20%.

Claims (9)

1. a kind of hydrogen nitrogen mixed working fluid electricity generation system, including hydrogen react bed unit (1), No. 1 hydrogen pans (27), liquid nitrogen gasification Device (2), air heat-exchange pipeline (12), No. 2 hydrogen pans (28) and air heat exchanger (29);The hydrogen reacts the every of bed unit Platform hydrogen reaction bed is respectively equipped with low pressure hydrogen import (31), high pressure hydrogen outlet (32), heat exchange hydrogen inlet (33) and heat exchange hydrogen Gas exports (34);The liquid nitrogen converter (2) is equipped with heat exchange coil (17), lime set entrance and high pressure nitrogen outlet;The hydrogen is anti- The heat exchange hydrogen outlet (34) of bed unit (1) hydrogen reaction bed is answered to be divided into two-way by triple valve (30), all the way through cooled hydrogen pipe Road (25) passes sequentially through heat transferring medium low pressure hydrogen circulating pump (13), No. 1 hydrogen pans (27), liquid nitrogen converter (2) are changed Hot coil (17) and triple valve (30) are connected to the heat exchange hydrogen inlet (33) of hydrogen reaction bed, form cooling circuit;Another way warp Heating hydrogen pipeline (26) passes sequentially through heat transferring medium high pressure hydrogen circulating pump (21), No. 2 hydrogen pans (28), air heat-exchanges The tube side and triple valve (30) of device (29) are connected to the heat exchange hydrogen inlet (33) of hydrogen reaction bed, form heating circuit;Air changes Pipe line (12) is connected to the shell side inlet of air heat exchanger (29), and the shell-side outlet of air heat exchanger (29) is communicated with the atmosphere; It is characterized in that: the system is additionally provided with gaseous mixture expanding machine (3), band liquid expanding machine (4), pure Hydrogen-Expansion Machine (44), generator (5), No. 2 generators (40), No. 3 generators (43), suction hydrogen separative unit (6), drainage injector (8) and liquid nitrogen surge tank (16);The gaseous mixture expanding machine (3) and generator (5) axis connection, the band liquid expanding machine (4) and No. 2 generator (40) axis Connection, the pure Hydrogen-Expansion Machine (44) and No. 3 generator (43) axis connections, the generator, No. 2 generators and No. 3 generators With battery (15) and external electrical network circuit connection;The drainage injector (8) is equipped with high pressure hydrogen entrance, high pressure nitrogen enters Mouth, circulating hydrogen entrance and mixed gas outlet, the suction hydrogen separative unit (6) are equipped with gaseous mixture entrance, nitrogen outlet and hydrogen Outlet;The high pressure hydrogen outlet (32) of hydrogen reaction bed unit (1) is connected to drainage injector through high pressure hydrogen pipeline (10) (8) high pressure hydrogen entrance, the high pressure nitrogen outlet of the liquid nitrogen converter (2) are connected to the elevated pressure nitrogen of drainage injector (8) Gas entrance;The mixed gas outlet of drainage injector (8) is connected to the entrance of gaseous mixture expanding machine (3), and the gaseous mixture is swollen The outlet of swollen machine (3) is connected to the gaseous mixture entrance for inhaling hydrogen separative unit (6), the nitrogen outlet for inhaling hydrogen separative unit (6) It is connected to the entrance with liquid expanding machine (4), the hydrogen outlet for inhaling hydrogen separative unit (6) is divided into two-way, passes through pure hydrogen-expansion all the way Machine (44) is connected to the low pressure hydrogen entrance (31) of hydrogen reaction bed through low pressure hydrogen pipeline (9), and another way passes through hydrogen gas circulating pump (14) it is connected to the circulating hydrogen entrance of drainage injector (2);The outlet of the band liquid expanding machine (4) is connected to liquid nitrogen surge tank (16) outlet of entrance, the liquid nitrogen surge tank (16) is connected to liquid nitrogen through lime set pipeline (11) by liquid pressing pump (7) The lime set entrance of gasifier (2).
2. hydrogen nitrogen mixed working fluid electricity generation system according to claim 1, it is characterized in that: the suction hydrogen separative unit (6) sets Have at least two metal hydride reaction beds (35) and inhale hydrogen separation heat exchanging device (22), the suctions hydrogen separation heat exchanging device (22) with often Platform metal hydride reaction bed (35) is connected by circulation;Allow to be arranged the group that the formation of hydrogen separative unit serial or parallel connection is inhaled by multiple groups It closes, continuous, stable offer hydrogen and nitrogen is provided;Film knot is arranged in the nitrogen outlet and hydrogen outlet for inhaling hydrogen separative unit Structure, the membrane structure of nitrogen outlet only allow nitrogen to pass through and flow out to inhale hydrogen separative unit, and the membrane structure of hydrogen outlet only allows hydrogen Gas, which passes through and flows out, inhales hydrogen separative unit.
3. hydrogen nitrogen mixed working fluid electricity generation system according to claim 1, it is characterized in that: hydrogen reaction bed unit (1) is set There are at least two hydrogen reaction beds, every hydrogen reaction bed is respectively equipped with low pressure hydrogen import (31), high pressure hydrogen outlet (32), heat exchange Hydrogen inlet (33) and heat exchange hydrogen outlet (34);The low pressure hydrogen import (31) is equipped with low pressure hydrogen imported valve (19), The high pressure hydrogen outlet (32) is equipped with high pressure hydrogen outlet valve (20), and the heat exchange hydrogen inlet (33) and heat exchange hydrogen go out Mouth (34) is respectively equipped with triple valve (30);Hydrogen reaction bed unit (1) can be set as multistage according to hydrogen release heat source temperature.
4. hydrogen nitrogen mixed working fluid electricity generation system according to claim 1, it is characterized in that: it is characterized in that: the lime set pipeline (11) the lime set working medium in is stable inorganic working medium or organic working medium or liquid nitrogen or inert gas or normal butane or propane;It is described Made lime set working medium efficient liquefaction with liquid expansion function and reliably to other liquefaction devices replacement for inhaling hydrogen process offer cooling capacity.
5. hydrogen nitrogen mixed working fluid electricity generation system according to claim 1, it is characterized in that: loading metal in the hydrogen reaction bed Hydrogen storage material, including but not limited to Rare Earth metal hydride;Low pressure hydrogen enters hydrogen reaction bed, low pressure by low pressure hydrogen entrance Hydrogen is absorbed to form metal hydride by hydrogen storage material, and high pressure hydrogen is released in the metal hydride heating after hydrogen is inhaled to completion;Institute Stating hydrogen reaction bed is primary structure, or the multilevel structure of heat is utilized for ladder, allows each hydrogen in every grade of hydrogen reaction bed Kind, quality or the volume of metal hydride in reaction bed can be different, and every grade of hydrogen reaction bed can be same or different.
6. hydrogen nitrogen mixed working fluid electricity generation system according to claim 1, it is characterized in that: the hydrogen reaction bed is situated between using circulation Matter and heat medium partition or non-septate heat transfer, heat medium be air, flue gas, seawater, river water, lake water, gaseous heating medium, Liquid heating medium, solid heat medium, two or two mixing or three-phase Hybrid Heating medium between gas-liquid-solid, what hydrogen reaction bed used High pressure or low pressure recycle medium include hydrogen but are not limited to hydrogen, are directly entered hydrogen reaction bed and are heated or moved heat, or use The mode of electricity, electromagnetism or internal heating, or by the way of external heat, or simultaneously by the way of interior external heat, circulatory mediator For hydrogen or other stables;If air is rare product, multistage is can be set in hydrogen reaction bed.
7. hydrogen nitrogen mixed working fluid electricity generation system according to claim 1, it is characterized in that: the hydrogen reaction bed is provided with metal The metal hydride of dusting in production process or aging is quickly moved out and replaces the new metallic hydrogen of loading by hydride more changing device Compound can also shut down the object in replacement hydrogen reaction bed using the material inhaled in hydrogen release intermittent time quick-replaceable hydrogen reaction bed Material, the material being replaced, which can be, inhales hydrogen state, is also possible to hydrogen release state, is also possible to inhale the transition state of hydrogen release.
8. hydrogen nitrogen mixed working fluid electricity generation system according to claim 7, it is characterized in that: hydrogen reaction bed unit (1) Hydrogen reaction bed is equipped with used metal hydride outlet port (36) and mouth (37) are added in fresh metal hydride, the metallic hydrogen Compound more changing device includes fresh metal hydride storehouse (23) and used metal hydride storehouse (24), the used gold Belong to hydride outlet port (36) and used metal hydride storehouse (24), institute are connected to by sealing valve (38) and drawing pump (40) It states fresh metal hydride storehouse (23) and hydrogen reaction bed is connected to by addition pump (39) and sealing valve (38);The metal hydride More changing device or the method conveyed using gravity conveying, mechanical conveying, pneumatic conveying, vacuum handling, fluid power conveying, electromagnetism or it Combination, thus reliably realize hydrogen reaction bed in metal hydride replacement any method be all suitable for.
9. hydrogen nitrogen mixed working fluid electricity generation system according to claim 1, it is characterized in that: the liquid nitrogen converter (2) is letter Single mixing arrangement or knockdown mixing apparatus is provided with including but not limited to using machinery such as push rod, pull rod, vacuum systems And/or electrical system device, guarantee that hydrogen outlet obtains the continuous gas of flow of the parameter stability including pressure, temperature Body;Air in the air heat-exchange pipeline (12) can be by room temperature or low temperature solid-state, liquid, gaseous other media institute Instead of.
CN201811225089.6A 2018-10-20 2018-10-20 A kind of hydrogen nitrogen mixed working fluid electricity generation system Pending CN109236400A (en)

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JP2009144676A (en) * 2007-12-18 2009-07-02 Toyota Industries Corp Energy recovery system
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