CN107285278B - A kind of hydrogen heat compressibility that energy cascade formula utilizes - Google Patents
A kind of hydrogen heat compressibility that energy cascade formula utilizes Download PDFInfo
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- CN107285278B CN107285278B CN201710412570.5A CN201710412570A CN107285278B CN 107285278 B CN107285278 B CN 107285278B CN 201710412570 A CN201710412570 A CN 201710412570A CN 107285278 B CN107285278 B CN 107285278B
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- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
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- C01B3/001—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes characterised by the uptaking medium; Treatment thereof
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- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
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- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
- C01B2203/0833—Heating by indirect heat exchange with hot fluids, other than combustion gases, product gases or non-combustive exothermic reaction product gases
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract
The hydrogen heat compressibility that energy cascade formula of the present invention utilizes, the hydrogen thermocompressor and high pressure hydrogen general pipeline of different operating temperature range are in including 1~100 grade, hydrogen thermocompressor is equipped with low pressure hydrogen entrance, high pressure hydrogen outlet and 1~100 metal hydride reaction bed.Low pressure hydrogen entrance and low pressure hydrogen piping connection, high pressure hydrogen outlet are connect by high pressure hydrogen pipeline with high pressure hydrogen general pipeline.External heat source passes sequentially through multistage hydrogen thermocompressor by operating temperature section by external heating pipeline from high to low.Equipped with heat exchanging pipe between grade between adjacent two-stage hydrogen thermocompressor, every grade of hydrogen thermocompressor inside is equipped with heat exchanging pipe in grade.The sensible heat that the reaction heat and cooling that the present invention makes full use of metal hydride hydrogen thermocompressor reaction bed to release when inhaling hydrogen are released when operating, improves the thermal efficiency of hydrogen thermocompressor, increases the range and selectivity of UTILIZATION OF VESIDUAL HEAT IN.
Description
Technical field
The invention belongs to technical field of power equipment, are related to a kind of hydrogen compressibility, and in particular to a kind of ladder-type benefit
With hydrogen heat compressibility.
Background technique
It is the fossil energy economy era for dominating the energy that the world today, which is still in petroleum, natural gas and coal, this change
The stone economy of energy epoch will terminate, and a unprecedented new energy revolution has begun.Replace the new energy of fossil energy economy
Economy, in other words the new energy economy of rare-view set-up will be " hydrogen energy source economy ", " low-carbon economy " and its nuclear energy, solar energy,
The modernization of the diversification energy such as wind energy, water energy, biomass energy, underground heat utilizes complementary new energy economy.
Hydrogen energy source is following energy main body, and hydrogen energy source automobile, hydrogen fuel cell increasingly enter in people's lives.Hydrogen
The energy diesel locomotive, rocket, automobile, ship, the vehicles and using hydrogen as power in terms of have extensively
Application prospect.At hand with the hydrogen energy source epoch, hydrogen energy source automobile is gradually promoted the use of, the metal hydride of environmental protection and energy saving
Hot compression becomes the hot spot of worldwide compressibility research in recent years.The hydrogen compressed system of the prior art is mostly two stages of compression,
Compression efficiency is low, is not able to satisfy the demand of hydrogen energy source automobile and other power-equipments.
Summary of the invention
The object of the present invention is to provide a kind of hydrogen heat compressibilities that energy cascade formula utilizes, and make full use of metal hydride
Object hydrogen thermocompressor reaction bed inhales the sensible heat released when the reaction heat released when hydrogen and cooling operation, improves hydrogen hot compression
The thermal efficiency of machine.
The technical scheme is that the hydrogen heat compressibility that energy cascade formula utilizes, including 1~100 grade in not
With the hydrogen thermocompressor and high pressure hydrogen general pipeline in operating temperature section, hydrogen thermocompressor is equipped with low pressure hydrogen entrance, high pressure
Hydrogen outlet and 1~100 metal hydride reaction bed.Low pressure hydrogen entrance and low pressure hydrogen piping connection, high pressure hydrogen go out
Mouth is connect by high pressure hydrogen pipeline with high pressure hydrogen general pipeline.Level-one hydrogen thermocompressor is connect with external heat source, next stage hydrogen
Gas thermocompressor is connect by heat source cascade utilization pipeline with upper level hydrogen thermocompressor.Grade is equipped with inside hydrogen thermocompressor
Heat exchanging pipe between interior heat exchanging pipe and grade passes through heat exchanger tube in grade in hydrogen thermocompressor at the same level between metal hydride reaction bed
Road connects, and is connected between two-stage hydrogen thermocompressor by heat exchanging pipe between grade.High pressure hydrogen general pipeline is respectively with outer for hydrogen pipe
Road, expansion work power output pipeline and expansion work power generation piping connection.
Metal hydride reaction bed is equipped between grade the outlet that exchanges heat between entrance and grade that exchanges heat, between grade heat exchanging pipe include between grade plus
Hot loop and cascade EDFA circuit.The heat exchange between entrance and grade that exchanges heat between grade, which exports to be communicated between grade by threeway Vavle switching, heats back
Road or cascade EDFA circuit, heating circuit and upper level cascade EDFA circuit communication between grade, cascade EDFA circuit and next stage grade
Between heating circuit connection hydrogen thermocompressor be equipped with heat exchange pipeline in grade, the cooling line that exchanges heat in grade, hydrogen gas circulating pump and
Triple valve, metal hydride reaction bed be equipped with reaction bed entrance, reaction bed outlet, hydrogen inlet, hydrogen outlet, exchange heat in grade into
Heat exchange outlet in mouth, grade.Heat exchange entrance is connect by triple valve with reaction bed entrance in hydrogen inlet and grade, and reaction bed outlet is logical
Cross heat exchange outlet connection in triple valve and hydrogen outlet and grade.Heat exchange outlet passes through the cooling line that exchanges heat in triple valve, grade in grade
Reaction bed entrance is connected to hydrogen gas circulating pump.
Hydrogen heat compressibility is equipped with synthesis ammonia and urea plant, expanding machine, generator and water electrolysis hydrogen production machine.It closes
Ammonification and urea plant are connect by external heat source pipeline with level-one hydrogen thermocompressor, and ammonia and urea plant are synthesized
Low pressure hydrogen pipe network by low pressure hydrogen piping connection to level-one hydrogen thermocompressor low pressure hydrogen entrance.High pressure hydrogen is total
Pipe is connect for hydrogen pipeline with synthesis ammonia and urea plant high pressure hydrogen pipe network by outer, passes through expansion work power output
Pipeline is connect with expanding machine, and the steam exhaust outlet of expanding machine is connected to the low pressure hydrogen entrance of level-one hydrogen thermocompressor.Expanding machine
It is connect with generator shaft, generator and water electrolysis hydrogen production machine circuit connection.
The multistage hydrogen thermocompressor of hydrogen heat compressibility is in different operating temperature range, metal hydride reaction bed
Interior filling metal hydrogen storage material, metal hydrogen storage material can absorb the hydrogen of lower pressure at a lower temperature while release reaction
Heat, absorbing reaction heat releases the hydrogen of elevated pressures simultaneously at relatively high temperatures, realizes the compression of hydrogen.Hydrogen heat not at the same level
The metal hydrogen storage material loaded in the metal hydride reaction bed of compressor is different, metal hydrogen storage in upper level hydrogen thermocompressor
The hydrogen discharging temperature for inhaling the metal hydrogen storage material that hydrogen temperature is greater than or equal in next stage hydrogen thermocompressor of material, next stage hydrogen
Required heat is by upper level hydrogen thermocompressor metal hydride reaction bed when thermocompressor metal hydride reaction bed hydrogen release
The reaction heat released when inhaling hydrogen partly or entirely provides.Hydrogen storage material used in metal hydride reaction bed is including but not limited to dilute
Great soil group and calcium alloy, Ti, Zr system alloy, titanium alloy, magnesium system alloy or vanadium system alloy.A kind of application form of system be with
Metal hydride storage system coproduction, metal hydride storage system include but is not limited to magnesium system metal hydride storage system.
Metal hydride storage system inhales the waste heat released when hydrogen and supplies hydrogen heat compressibility use of the invention, the High Pressure Hydrogen of generation
Gas is directly outer to be supplied or the acting of expanded machine is used as power output or power generation or high pressure hydrogen generates electricity by expanding machine acting,
The electric power of generation produces more hydrogen for electrolysis hydrogen production device.
The metal hydride reaction bed of hydrogen thermocompressor is equipped with heating coil.Exchange heat the outlet that exchanges heat between entrance and grade between grade
Can be by the switching of triple valve, heating circuit or cascade EDFA circuit communication between grade respectively.Heat transferring medium is hydrogen gas and water, leads
One or more combinations of hot oil or other heat transferring mediums.Every grade of hydrogen thermocompressor is equipped with heat-exchange system in grade, heat exchange in grade
System includes heat exchange pipeline in grade, heat exchange cycle pump and the interior cooling line that exchanges heat of grade in grade.Heat exchange entrance can pass through in grade
The switching of triple valve is connected respectively in grade heat exchange pipeline in exchange heat cooling line and grade, and heat exchange outlet can also lead in grade
The switching for crossing triple valve is connected respectively in grade heat exchange pipeline in exchange heat cooling line and grade, and exchange heat cooling line in grade
It is equipped with hydrogen gas circulating pump.
The compression process for the hydrogen heat compressibility that energy cascade formula utilizes is divided into six stages:
Stage one exchanges heat cooling procedure between grade, closes the compressor reaction bed entrance of metal hydride compressor reaction bed
It is exported with compressor reaction bed, opens to exchange heat between grade between entrance and grade and heat exchange outlet and be communicated to by threeway Vavle switching cold between grade
But circuit exchanges heat with next stage hydrogen gas compressor, and metal hydride compressor reaction bed is cooled to and inhales hydrogen temperature；
Stage two is to inhale hydrogen process, opens compressor reaction bed entrance and switching is communicated to hydrogen inlet, absorb pressure hydrogen
Gas inhales the heat that hydrogen is released and gives next stage hydrogen thermocompressor by cascade EDFA circuit transmission, required reaction when for its hydrogen release
Heat uses；
Stage three is that the temperature-rise period that exchanges heat in grade exchanges heat between grade and exchanges heat out between entrance and grade after suction hydrogen reaches the predetermined time
Mouth is closed, and the switching of compressor reaction bed entrance is communicated in grade the entrance that exchanges heat, and the interior heat exchange entrance of grade passes through heat exchange pipe in grade
Road is in grade the outlet that exchanges heat in the grade of the compressor reaction bed of heat exchange temperature-fall period with another, and it is anti-to open compressor
Bed outlet switching is answered to be communicated to heat exchange outlet in grade, heat exchange outlet passes through heat exchange cooling line in grade and the heat exchange in grade in grade
Heat exchange entrance connection in the grade of the compressor reaction bed of temperature-fall period, while making hydrogen in two compressors by hydrogen gas circulating pump
It circulates and exchanges heat between reaction bed；
The heat exchange process between grade of stage four, after compressor reaction bed is by the way that heat exchange rises to certain temperature in grade, compression
Machine reaction bed entrance and exit is closed, open the heat exchange between entrance and grade that exchanges heat between grade export and switch be communicated to grade between heat back
Road exchanges heat with upper level hydrogen gas compressor, metal hydride compressor reaction bed is heated to hydrogen discharging temperature；
Stage five is hydrogen release process, after metal hydride compressor reaction bed is heated to hydrogen discharging temperature, compressor reaction bed
Outlet, which is opened and switched, is communicated to pans, releases high pressure hydrogen；Reaction heat needed for during hydrogen release, passes through heating circuit between grade
The reaction heat supply released when inhaling hydrogen by upper level hydrogen thermocompressor；
Stage six is the temperature-fall period that exchanges heat in grade, and the outlet of compressor reaction bed, which switches, is communicated to heat exchange outlet in grade, in grade
Heat exchange outlet is in grade in the grade of the compressor reaction bed of heat exchange temperature-rise period by heat exchange pipeline in grade with another
Exchange heat entrance connection, opens compressor reaction bed entrance and switching is communicated in grade the entrance that exchanges heat, pass through the cooling tube that exchanges heat in grade
Road and the outlet that exchanges heat in the grade of the compressor reaction bed of heat exchange temperature-rise period in grade, and hydrogen is made by hydrogen gas circulating pump
Gas is circulated between two compressor reaction beds and is exchanged heat, and sufficiently re-enters into the worked of stage one after heat exchange
Journey so repeats.Hydrogen heat compressibility is equipped with hydrogen storage material tank and gating system, and hydrogen storage material tank and gating system includes knockout drum, delays
Rush tank, high temperature storehouse, low temperature bin, vacuum tank, hydrogen gas compressor, loader, high pressure hydrogen tank and filling gun.Filling gun and metallic hydrogen
The filler of compound reaction bed connects.Filling gun is equipped with hydrogen mouth and metal hydride mouth, and high temperature storehouse and low temperature bin are respectively equipped with 1
~50 compartments.The metal hydride mouth of filling gun is connected to knockout drum, the gas of knockout drum by addition-pumping material common pall
Outlet is connected to vacuum tank by surge tank, and the solid outlet of knockout drum is connected to high temperature storehouse and low temperature bin.High temperature storehouse and low temperature
Storehouse passes through loader respectively and addition-pumping material common pall is connected to the metal hydride mouth of filling gun.Vacuum tank passes through compression
Machine is connected to high pressure hydrogen tank, and bypass is equipped between vacuum tank and high pressure hydrogen tank.High pressure hydrogen tank outlet is divided into three tunnels, all the way
It is connected to knockout drum, is connected to loader all the way, is connected to the hydrogen mouth of filling gun all the way.High pressure hydrogen tank is two, and one uses
One is standby.Hydrogen storage material tank and gating system is added to be able to achieve between grade or store up between any two metal hydride compressor reaction bed in grade
Hydrogen material is mutually switched, with the abundant progress of auxiliary heat-exchanging.
The hydrogen heat compressibility that energy cascade formula of the present invention utilizes passes through the multistage hydrogen for being in different operating temperature of setting
Gas thermocompressor, every grade of hydrogen thermocompressor are provided with the metal hydride hydrogen thermocompressor reaction bed of multiple groups alternation, grade
Between and grade in heat-exchange system is set, when metal hydride hydrogen thermocompressor reaction bed being made full use of to inhale hydrogen the reaction heat released with
And the sensible heat released when cooling operation, improve the thermal efficiency of hydrogen thermocompressor.The present invention can be under the heating of external heat source
Low pressure hydrogen is efficiently compressed to high pressure, external heat source can be the various waste heats such as high-temperature flue gas and solar energy, increase remaining
The range and selectivity of heat utilization.
Detailed description of the invention
Fig. 1 is the flow diagram for the hydrogen heat compressibility that energy cascade formula of the present invention utilizes
Fig. 2 heat exchanging pipe schematic diagram between hydrogen heat compressor stage；
Fig. 3 is heat exchanging pipe schematic diagram in hydrogen heat compressor stage；
Fig. 4 is the hydrogen heat compressibility process utilized with the energy cascade formula that expansion work generates electricity；
Fig. 5 is the flow diagram of hydrogen storage material tank and gating system.
Wherein: 1-heat source cascade utilization pipeline, 2-level-one hydrogen thermocompressors, heat exchanging pipe, 4-metals in 3-grades
Heat exchanging pipe between hydride reaction bed, 5-high pressure hydrogen pipelines, 6-grades, 7-low pressure hydrogen pipelines, 9-hydrogen thermocompressors,
10-three-level hydrogen thermocompressors, 11-six grades of hydrogen thermocompressors, 12-are defeated for hydrogen pipeline, 13-expansion work power outside
Pipeline, 14-expansion works power generation pipeline, 15-high pressure hydrogen general pipeline, the outlet of 16-reaction beds, 17-triple valves, 18-hydrogen out
Gas outlet, heat exchange entrance in 19-reaction bed entrances, 20-hydrogen inlets, 21-grades, heat exchange pipeline, 23-in 22-grades
Heat exchange cooling line, 24-hydrogen gas circulating pumps in grade, the entrance that exchanged heat in 25-grades between heat exchange outlet, 26-grades, 27-expanding machines,
Heat exchange exports, on 32-between 28-generators, 29-water electrolysis hydrogen production machines, 30-synthesis ammonia and urea plant, 31-grades
Heating circuit, 38-grades between heating circuit, 37-grades between level-one cascade EDFA circuit, 33-heating coils, 34-next stage grades
Between cooling circuit, 39-ten grades of hydrogen thermocompressors, 40-hydrogen into-outlet pipe, 41-filling guns, 42-knockout drums,
43-surge tanks, 44-high temperature storehouses, 45-additions-pumping material common pall, 46-vacuum tanks, 47-hydrogen gas compressors, 48-supply
Glassware, 49-high pressure hydrogen tanks, 50-low temperature bins, 100-hydrogen heat compressibilities.
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 heat compressibility that energy cascade formula of the present invention utilizes as shown in Figure 1, include six grades of hydrogen thermocompressors and
High pressure hydrogen general pipeline 15, hydrogen thermocompressor is equipped with low pressure hydrogen entrance and high pressure hydrogen exports, as shown in Figure 2 and Figure 3, every
Hydrogen thermocompressor is equipped with 6 metal hydride reaction beds 4.Low pressure hydrogen entrance is connect with low pressure hydrogen pipeline 7, high pressure hydrogen
Outlet is connect by high pressure hydrogen pipeline 5 with high pressure hydrogen general pipeline.Level-one hydrogen thermocompressor 2 passes through heat source cascade utilization pipeline
1 connect with external heat source, and level-one hydrogen thermocompressor is connect by heat source cascade utilization pipeline 1 with second level hydrogen thermocompressor,
Second level hydrogen thermocompressor is connect by heat source cascade utilization pipeline with three-level hydrogen thermocompressor, and so on be connected to six grades
Hydrogen thermocompressor 11.Hydrogen thermocompressor is equipped in grade heat exchanging pipe 6, hydrogen thermocompressor at the same level between heat exchanging pipe 3 and grade
It is connected between interior metal hydride reaction bed by heat exchanging pipe in grade, passes through heat exchanger tube between grade between two-stage hydrogen thermocompressor
Road 6 connects.High pressure hydrogen general pipeline generates electricity with outer for hydrogen pipeline 12, expansion work power output pipeline 13 and expansion work respectively
Pipeline 14 connects.As shown in Fig. 2, metal hydride reaction bed is equipped between grade the heat exchange outlet 31 between entrance 26 and grade that exchanges heat, between grade
Heat exchanging pipe 6 includes heating circuit 37 and cascade EDFA circuit 38 between grade.Heat exchange entrance between triple valve and grade by heating between grade
Circuit is connected to upper level cascade EDFA circuit 32, and heat exchange outlet passes through triple valve and cascade EDFA circuit and next stage grade between grade
Between heating circuit 34 be connected to.As shown in figure 3, hydrogen thermocompressor is equipped with heat exchange pipeline 22 in grade, exchange heat cooling tube in grade
Road 23, hydrogen gas circulating pump 24 and triple valve 17, metal hydride reaction bed 4 is equipped with reaction bed entrance 19, reaction bed exports 16, hydrogen
The interior heat exchange outlet 25 of heat exchange entrance 21, grade in gas entrance 20, hydrogen outlet 18, grade.Heat exchange entrance passes through in hydrogen inlet and grade
Triple valve is connect with reaction bed entrance, and reaction bed outlet passes through heat exchange outlet connection in triple valve and hydrogen outlet and grade.In grade
Heat exchange outlet is connected to reaction bed entrance by heat exchange cooling line and hydrogen gas circulating pump in triple valve, grade.Hydrogen thermocompressor
Metal hydride reaction bed 4 be equipped with heating coil 33.
The multistage hydrogen thermocompressor for the hydrogen heat compressibility that energy cascade formula of the present invention utilizes is in different operating temperature
Degree, metal hydride reaction bed 4 is interior to load metal hydrogen storage material, and hydrogen storage material is magnesium system alloy or vanadium system alloy.Metal hydrogen storage
Material can absorb the hydrogen of lower pressure at a lower temperature while release reaction heat, and absorbing reaction heat is simultaneously at relatively high temperatures
The hydrogen for releasing elevated pressures, realizes the compression of hydrogen.The metal hydride reaction bed of hydrogen thermocompressor not at the same level is built-in
The metal hydrogen storage material of load is different, and the suction hydrogen temperature of metal hydrogen storage material is greater than or equal to next in upper level hydrogen thermocompressor
The hydrogen discharging temperature of metal hydrogen storage material in grade hydrogen thermocompressor, next stage hydrogen thermocompressor metal hydride reaction bed hydrogen release
When the reaction heat released when inhaling hydrogen by upper level hydrogen thermocompressor metal hydride reaction bed of required heat come part or entirely
Portion provides.Being exchanged heat between entrance and grade between grade, heat exchange outlet can be by the switching of triple valve, respectively between grade between heating circuit or grade
Cooling circuit connection.Heat transferring medium is one or more combinations of hydrogen gas and water, conduction oil or other heat transferring mediums.Every grade of hydrogen
Thermocompressor is equipped with heat-exchange system in grade, and heat-exchange system includes heat exchange pipeline in grade, heat exchange cycle pump and grade in grade in grade
Interior heat exchange cooling line；Heat exchange entrance can be connected respectively to heat exchange cooling line and grade in grade by the switching of triple valve in grade
Interior heat exchange pipeline, in grade heat exchange outlet can also by the switching of triple valve, be connected respectively in grade heat exchange cooling line and
Heat exchange pipeline in grade, the interior heat exchange cooling line of grade are equipped with hydrogen gas circulating pump.
The compression process for the hydrogen heat compressibility that energy cascade formula utilizes is divided into six stages:
Stage one exchanges heat cooling procedure between grade, closes the compressor reaction bed entrance of metal hydride compressor reaction bed
It is exported with compressor reaction bed, opens to exchange heat between grade between entrance and grade and heat exchange outlet and be communicated to by threeway Vavle switching cold between grade
But circuit exchanges heat with next stage hydrogen gas compressor, and metal hydride compressor reaction bed is cooled to and inhales hydrogen temperature；
Stage two is to inhale hydrogen process, opens compressor reaction bed entrance and switching is communicated to hydrogen inlet, absorb pressure hydrogen
Gas inhales the heat that hydrogen is released and gives next stage hydrogen thermocompressor by cascade EDFA circuit transmission, required reaction when for its hydrogen release
Heat uses；
Stage three is that the temperature-rise period that exchanges heat in grade exchanges heat between grade and exchanges heat out between entrance and grade after suction hydrogen reaches the predetermined time
Mouth is closed, and the switching of compressor reaction bed entrance is communicated in grade the entrance that exchanges heat, and the interior heat exchange entrance of grade passes through heat exchange pipe in grade
Road is in grade the outlet that exchanges heat in the grade of the compressor reaction bed of heat exchange temperature-fall period with another, and it is anti-to open compressor
Bed outlet switching is answered to be communicated to heat exchange outlet in grade, heat exchange outlet passes through heat exchange cooling line in grade and the heat exchange in grade in grade
Heat exchange entrance connection in the grade of the compressor reaction bed of temperature-fall period, while making hydrogen in two compressors by hydrogen gas circulating pump
It circulates and exchanges heat between reaction bed；
The heat exchange process between grade of stage four, after compressor reaction bed is by the way that heat exchange rises to certain temperature in grade, compression
Machine reaction bed entrance and exit is closed, open the heat exchange between entrance and grade that exchanges heat between grade export and switch be communicated to grade between heat back
Road exchanges heat with upper level hydrogen gas compressor, metal hydride compressor reaction bed is heated to hydrogen discharging temperature；
Stage five is hydrogen release process, after metal hydride compressor reaction bed is heated to hydrogen discharging temperature, compressor reaction bed
Outlet, which is opened and switched, is communicated to pans, releases high pressure hydrogen；Reaction heat needed for during hydrogen release, passes through heating circuit between grade
The reaction heat supply released when inhaling hydrogen by upper level hydrogen thermocompressor；
Stage six is the temperature-fall period that exchanges heat in grade, and the outlet of compressor reaction bed, which switches, is communicated to heat exchange outlet in grade, in grade
Heat exchange outlet is in grade in the grade of the compressor reaction bed of heat exchange temperature-rise period by heat exchange pipeline in grade with another
Exchange heat entrance connection, opens compressor reaction bed entrance and switching is communicated in grade the entrance that exchanges heat, pass through the cooling tube that exchanges heat in grade
Road and the outlet that exchanges heat in the grade of the compressor reaction bed of heat exchange temperature-rise period in grade, and hydrogen is made by hydrogen gas circulating pump
Gas is circulated between two compressor reaction beds and is exchanged heat, and sufficiently re-enters into the worked of stage one after heat exchange
Journey so repeats.
Embodiment 2
Another embodiment of the present invention as shown in figure 4, hydrogen heat compressibility 100, synthesis ammonia and urea plant 30,
Expanding machine 27, generator 28 and water electrolysis hydrogen production machine 29, hydrogen heat compressibility include ten grades of hydrogen thermocompressors and High Pressure Hydrogen
Gas general pipeline 15, hydrogen thermocompressor is equipped with low pressure hydrogen entrance and high pressure hydrogen exports, and every hydrogen thermocompressor is equipped with 8 gold
Belong to hydride reaction bed 4.It synthesizes ammonia and urea plant and passes through heat source cascade utilization pipeline 1 and level-one hydrogen thermocompressor 2
Connection provides external heat source by synthesizing ammonia and urea plant.Level-one hydrogen thermocompressor passes through heat source cascade utilization pipeline 1
It is connect with second level hydrogen thermocompressor, second level hydrogen thermocompressor passes through heat source cascade utilization pipeline and three-level hydrogen thermocompressor
Connection, and so on be connected to ten grades of hydrogen thermocompressors 39.Hydrogen thermocompressor is equipped in grade and exchanges heat between heat exchanging pipe 3 and grade
Pipeline 6 passes through heat exchanging pipe connection, two-stage hydrogen hot pressing in grade in hydrogen thermocompressor at the same level between metal hydride reaction bed
It is connected between contracting machine by heat exchanging pipe 6 between grade.The low pressure hydrogen pipe network of synthesis ammonia and urea plant passes through low pressure hydrogen
Pipeline 7 is connected to the low pressure hydrogen entrance of level-one hydrogen thermocompressor.High pressure hydrogen general pipeline 15 by it is outer for hydrogen pipeline 12 with
Ammonia and the connection of urea plant high pressure hydrogen pipe network are synthesized, is connect by expansion work power output pipeline 13 with expanding machine,
The steam exhaust outlet of expanding machine is connected to the low pressure hydrogen entrance of level-one hydrogen thermocompressor.Expanding machine is connect with generator shaft, hair
Motor and water electrolysis hydrogen production machine circuit connection.
The hydrogen heat compressibility and existing synthesis ammonia and urea plant coproduction that energy cascade formula utilizes, synthesize ammonia
And the hydrogen and waste heat of urea plant generation supply hydrogen heat compressibility of the present invention and use.Hydrogen heat compressibility generates
High pressure hydrogen return supply synthesis ammonia and urea plant use.High pressure hydrogen is by expanding machine acting power generation, the electricity of generation
Power produces more hydrogen for electrolysis hydrogen production device.It removes stage makeup and costume dress as shown in figure 5, hydrogen heat compressibility is equipped with hydrogen storage material
It sets, hydrogen storage material tank and gating system includes knockout drum 42, surge tank 43, high temperature storehouse 44, low temperature bin 50, vacuum tank 46, hydrogen compression
Machine 47, loader 48, high pressure hydrogen tank 49 and filling gun 41.Filling gun is connect with the filler of metal hydride reaction bed 4.Add
It infuses rifle and is equipped with hydrogen mouth and metal hydride mouth, high temperature storehouse and low temperature bin are respectively equipped with 1~50 compartment.The metallic hydrogen of filling gun
Compound mouth is connected to knockout drum by addition-pumping material common pall 45, and the gas vent of knockout drum is connected to very by surge tank
Slack tank, the solid outlet of knockout drum are connected to high temperature storehouse and low temperature bin.High temperature storehouse and low temperature bin pass through loader and addition-respectively
Take out the metal hydride mouth that material common pall is connected to filling gun.Vacuum tank is connected to high pressure hydrogen tank, vacuum by compressor
Bypass is equipped between tank and high pressure hydrogen tank.High pressure hydrogen tank outlet is divided into three tunnels, is connected to knockout drum all the way, is connected to all the way
Loader is connected to the hydrogen mouth of filling gun all the way.High pressure hydrogen tank is two, the using and the reserved.Hydrogen storage material is added to remove stage makeup and costume dress
It sets and is able to achieve between grade or hydrogen storage material is mutually switched between any two metal hydride compressor reaction bed in grade, with auxiliary
The abundant progress of heat exchange.
Claims (9)
1. a kind of hydrogen heat compressibility that energy cascade formula utilizes, it is characterized in that: hydrogen heat compressibility includes 2~100 grades
Hydrogen thermocompressor and high pressure hydrogen general pipeline (15) in different operating temperature range, the hydrogen thermocompressor are equipped with low pressure
Hydrogen inlet, high pressure hydrogen outlet and 2~100 metal hydride reaction beds (4)；The low pressure hydrogen entrance and low pressure hydrogen
Pipeline (7) connection, the high pressure hydrogen outlet are connect by high pressure hydrogen pipeline (5) with high pressure hydrogen general pipeline；Level-one hydrogen heat
Compressor (2) is connect with external heat source, and next stage hydrogen thermocompressor passes through heat source cascade utilization pipeline (1) and upper level hydrogen
Thermocompressor connection；The hydrogen thermocompressor is equipped in grade heat exchanging pipe (6), hydrogen heat at the same level between heat exchanging pipe (3) and grade
It is connected between metal hydride reaction bed by heat exchanging pipe in grade in compressor, by between grade between two-stage hydrogen thermocompressor
Heat exchanging pipe (6) connection；The high pressure hydrogen general pipeline is respectively with outer for hydrogen pipeline (12), expansion work power output pipeline
(13) it is connected with expansion work power generation pipeline (14)；The metal hydride reaction bed exchanges heat entrance (26) between grade between being equipped with grade
Heat exchange exports (31), and heat exchanging pipe (6) includes heating circuit (37) and cascade EDFA circuit (38) between grade between the grade；The grade
Between the heat exchange outlet that exchanges heat between entrance and grade heating circuit or cascade EDFA circuit between grade be communicated to by threeway Vavle switching, add between grade
Hot loop is connected to upper level cascade EDFA circuit (32), and heating circuit (34) is connected between cascade EDFA circuit and next stage grade；
The hydrogen thermocompressor is equipped with heat exchange pipeline (22) in grade, exchange heat cooling line (23), hydrogen gas circulating pump (24) in grade
With triple valve (17), the metal hydride reaction bed (4) is equipped with reaction bed entrance (19), reaction bed exports (16), hydrogen enters
Heat exchange exports (25) in interior heat exchange entrance (21) of mouth (20), hydrogen outlet (18), grade, grade；Heat exchange in the hydrogen inlet and grade
Entrance is connect by triple valve with reaction bed entrance, and the reaction bed outlet in triple valve and hydrogen outlet and grade by exchanging heat out
Mouth connection；Heat exchange outlet is connected to reaction bed and is entered by heat exchange cooling line and hydrogen gas circulating pump in triple valve, grade in the grade
Mouthful.
2. the hydrogen heat compressibility that energy cascade formula according to claim 1 utilizes, it is characterized in that: the hydrogen hot pressing
Compression system (100) is equipped with synthesis ammonia and urea plant (30), expanding machine (27), generator (28) and water electrolysis hydrogen production machine
(29), the synthesis ammonia and urea plant are connect by external heat source pipeline with level-one hydrogen thermocompressor (2), synthesize ammonia
And the low pressure hydrogen pipe network of urea plant is connected to the pressure hydrogen of level-one hydrogen thermocompressor by low pressure hydrogen pipeline (7)
Gas entrance；The high pressure hydrogen general pipeline (15) is by outer for hydrogen pipeline (12) and synthesis ammonia and urea plant high pressure hydrogen
Pipe network connection, is connect by expansion work power output pipeline (13) with expanding machine, and the steam exhaust outlet of expanding machine is connected to level-one
The low pressure hydrogen entrance of hydrogen thermocompressor；The expanding machine is connect with generator shaft, generator and water electrolysis hydrogen production electromechanics road
Connection.
3. a kind of hydrogen heat compressibility that energy cascade formula utilizes according to claim 1, it is characterized in that: the hydrogen heat
The multistage hydrogen thermocompressor of compressibility is in different operating temperature range, loads in the metal hydride reaction bed (4)
Metal hydrogen storage material, the metal hydrogen storage material can absorb the hydrogen of lower pressure at a lower temperature while release reaction heat,
Absorbing reaction heat releases the hydrogen of elevated pressures simultaneously at relatively high temperatures, realizes the compression of hydrogen；Hydrogen hot pressing not at the same level
The metal hydrogen storage material loaded in the metal hydride reaction bed of contracting machine is different, metal hydrogen storage material in upper level hydrogen thermocompressor
The hydrogen discharging temperature for inhaling the metal hydrogen storage material that hydrogen temperature is greater than or equal in next stage hydrogen thermocompressor of material, next stage hydrogen heat
Required heat is inhaled by upper level hydrogen thermocompressor metal hydride reaction bed when compressor metal hydride reaction bed hydrogen release
The reaction heat released when hydrogen partly or entirely provides.
4. the hydrogen heat compressibility that energy cascade formula according to claim 3 utilizes, it is characterized in that: the metal hydride
Hydrogen storage material used in object reaction bed (4) includes terres rares and calcium alloy, Ti, Zr system alloy, titanium alloy, magnesium system alloy or vanadium
It is alloy.
5. the hydrogen heat compressibility that energy cascade formula according to claim 4 utilizes, it is characterized in that: the one of the system
Kind of application form be with metal hydride storage system coproduction, metal hydride storage system includes magnesium system hydride hydrogen-storing
System；Metal hydride storage system is inhaled the waste heat supply the released when hydrogen hydrogen heat compressibility and is used, the height of generation
Press hydrogen is directly outer to supply or the acting of expanded machine is as power output or power generation use.
6. the hydrogen heat compressibility that energy cascade formula according to claim 1 utilizes, it is characterized in that: the hydrogen hot pressing
The metal hydride reaction bed (4) of contracting machine is equipped with heating coil (33)；The heat exchange between entrance and grade that exchanges heat between the grade, which exports, to be passed through
The switching of triple valve, respectively heating circuit or cascade EDFA circuit communication between grade；The heat transferring medium is hydrogen gas and water, thermally conductive
One or more combinations of oil or other heat transferring mediums.
7. the hydrogen heat compressibility that energy cascade formula utilizes according to claim 1, it is characterized in that: every grade of hydrogen hot compression
Machine is equipped with heat-exchange system in grade, and heat-exchange system includes heat exchange pipeline in grade, heat exchange cycle pump and the interior heat exchange of grade in grade in grade
Cooling line；Exchange heat switching of the entrance by triple valve in the grade, is connected respectively in grade and changes in heat exchange cooling line and grade
Heat heating pipeline, the interior heat exchange outlet of the grade are connected respectively in grade in heat exchange cooling line and grade by the switching of triple valve
Heat exchange pipeline, the interior heat exchange cooling line of grade are equipped with hydrogen gas circulating pump.
8. the hydrogen heat compressibility that energy cascade formula according to claim 1 utilizes, it is characterized in that: the energy cascade
The compression process for the hydrogen heat compressibility that formula utilizes is divided into six stages:
Stage one exchanges heat cooling procedure between grade, and compressor reaction bed entrance and the compressor for closing metal hydride reaction bed are anti-
Bed is answered to export, the heat exchange between entrance and grade that exchanges heat between opening grade exports and is communicated to cascade EDFA circuit by threeway Vavle switching, with
The heat exchange of next stage hydrogen gas compressor, metal hydride reaction bed is cooled to and inhales hydrogen temperature；
Stage two is to inhale hydrogen process, opens compressor reaction bed entrance and switching is communicated to hydrogen inlet, absorb low pressure hydrogen, inhale
The heat that hydrogen is released gives next stage hydrogen thermocompressor by cascade EDFA circuit transmission, and required reaction heat makes when for its hydrogen release
With；
Stage three is the temperature-rise period that exchanges heat in grade, and the heat exchange outlet between entrance and grade that exchanges heat after suction hydrogen reaches the predetermined time, between grade is closed
Close, the switching of compressor reaction bed entrance is communicated in grade the entrance that exchanges heat, in grade heat exchange entrance by heat exchange pipeline in grade with
Another is in grade the outlet that exchanges heat in the grade of the compressor reaction bed of heat exchange temperature-fall period, and opens compressor reaction bed
Outlet switching is communicated in grade the outlet that exchanges heat, and heat exchange outlet passes through heat exchange cooling line in grade and cools down in the interior heat exchange of grade in grade
Heat exchange entrance connection in the grade of the compressor reaction bed of process, while hydrogen is reacted in two compressors by hydrogen gas circulating pump
It circulates and exchanges heat between bed；
The heat exchange process between grade of stage four, after compressor reaction bed is by the way that heat exchange rises to certain temperature in grade, compressor is anti-
Answer a bed entrance and exit to close, open the heat exchange between entrance and grade that exchanges heat between grade export and switch be communicated to grade between heating circuit, with
The heat exchange of upper level hydrogen gas compressor, is heated to hydrogen discharging temperature for metal hydride reaction bed；
Stage five is hydrogen release process, and after metal hydride reaction bed is heated to hydrogen discharging temperature, the outlet of compressor reaction bed is opened simultaneously
Switching is communicated to pans, releases high pressure hydrogen；Reaction heat needed for during hydrogen release, by heating circuit between grade by upper level hydrogen
Gas thermocompressor inhales the reaction heat supply released when hydrogen；
Stage six is the temperature-fall period that exchanges heat in grade, and compressor reaction bed outlet switching is communicated to heat exchange outlet in grade, heat exchange in grade
Outlet is in heat exchange in the grade of the compressor reaction bed of heat exchange temperature-rise period in grade with another by heat exchange pipeline in grade
Entrance connection, opens compressor reaction bed entrance and switches and be communicated in grade the entrance that exchanges heat, by exchange heat in grade cooling line with
Exchange heat in the grade of the compressor reaction bed of heat exchange temperature-rise period outlet in grade, and so that hydrogen is existed by hydrogen gas circulating pump
It circulates and exchanges heat between two compressor reaction beds, the course of work in stage one is sufficiently re-entered into after heat exchange, such as
This is repeated.
9. the hydrogen heat compressibility that energy cascade formula according to claim 1 utilizes, it is characterized in that: the hydrogen hot pressing
Compression system is equipped with hydrogen storage material tank and gating system, and the hydrogen storage material tank and gating system includes knockout drum (42), surge tank (43), high temperature
Storehouse (44), low temperature bin (50), vacuum tank (46), hydrogen gas compressor (47), loader (48), high pressure hydrogen tank (49) and filling gun
(41)；The filling gun is equipped with hydrogen mouth and metal hydride mouth, the high temperature storehouse and low temperature bin be respectively equipped with 1~50 every
Cabin；The metal hydride mouth of the filling gun is connected to knockout drum by addition-pumping material common pall (45), the knockout drum
Gas vent is connected to vacuum tank by surge tank, and the solid outlet of knockout drum is connected to high temperature storehouse and low temperature bin；The high temperature
Storehouse and low temperature bin pass through loader respectively and addition-pumping material common pall is connected to the metal hydride mouth of filling gun；It is described true
Slack tank is connected to high pressure hydrogen tank by compressor, and bypass is equipped between vacuum tank and high pressure hydrogen tank；The high pressure hydrogen tank
Outlet is divided into three tunnels, is connected to knockout drum all the way, is connected to loader all the way, is connected to the hydrogen mouth of filling gun all the way；It is described
High pressure hydrogen tank is two, the using and the reserved.
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| CN108469196B (en) * | 2018-02-13 | 2020-04-24 | 上海柯来浦能源科技有限公司 | High-temperature gas waste heat utilization system |
| CN108640082B (en) * | 2018-04-25 | 2020-10-30 | 上海柯来浦能源科技有限公司 | Device and method for recovering waste heat by utilizing metal hydride step |
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| CN114542953B (en) * | 2022-01-18 | 2023-06-16 | 华南理工大学 | Waste heat utilization metal hydride hydrogen compressor system and method |
| CN115535961B (en) * | 2022-10-24 | 2024-03-19 | 云南电网有限责任公司电力科学研究院 | Hydrogen absorbing and releasing device for hydrogen storage alloy and preparation method thereof |
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