CN109638893A - A kind of urea waste water is used for high safety high efficiency wind power hydrogen production peak-frequency regulation system - Google Patents
A kind of urea waste water is used for high safety high efficiency wind power hydrogen production peak-frequency regulation system Download PDFInfo
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- CN109638893A CN109638893A CN201910091076.2A CN201910091076A CN109638893A CN 109638893 A CN109638893 A CN 109638893A CN 201910091076 A CN201910091076 A CN 201910091076A CN 109638893 A CN109638893 A CN 109638893A
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 239000001257 hydrogen Substances 0.000 title claims abstract description 86
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 86
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000004202 carbamide Substances 0.000 title claims abstract description 58
- 239000002351 wastewater Substances 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000001301 oxygen Substances 0.000 claims abstract description 42
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 42
- 230000005611 electricity Effects 0.000 claims abstract description 39
- 238000003860 storage Methods 0.000 claims abstract description 25
- 239000000446 fuel Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 239000000047 product Substances 0.000 claims description 25
- 238000005868 electrolysis reaction Methods 0.000 claims description 14
- 239000003792 electrolyte Substances 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 7
- 238000000354 decomposition reaction Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000013589 supplement Substances 0.000 claims description 2
- 230000000994 depressogenic effect Effects 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 238000004080 punching Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000036647 reaction Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
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- H02J3/386—
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0656—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by electrochemical means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a kind of urea waste waters to be used for high safety high efficiency wind power hydrogen production peak-frequency regulation system, the output end of wind generator system is connected with the input terminal of power divider, two output ends of power divider are connected with the charging interface of the input terminal of transformer and battery respectively, the electric discharge interface of battery is connected with the power interface of electrolytic cell, urea waste water input channel is successively connected through filter device and wastewater storage tank with the liquid inlet of electrolytic cell, the cathode product of electrolytic cell exports successively through hydrogen gas buffer, hydrogen gas compressor and hydrogen container are connected with the hydrogen inlet of fuel cell, the output end of fuel cell is connected with the input terminal of transformer, the anodic product outlet of electrolytic cell is successively connected through oxygen surge tank and oxygen compressor with the entrance of oxygen container；The output end of transformer is connected with power grid, which can abandon the electrolytic hydrogen production that electricity realizes urea in urea waste water using abandonment, and the hydrogen output of electrolytic cell and service life are preferable.
Description
Technical field
The invention belongs to hydrogen manufacturing and environmental technology field, it is related to a kind of urea waste water for high safety high efficiency wind power hydrogen production
Peak-frequency regulation system.
Background technique
With the fast development of hydrogen fuel cell, the energy of the hydrogen as most clean and effective has obtained extensive in recent years
Concern.The hydrogen manufacturing mode of scale at present is mainly that natural gas (containing naphtha, heavy oil, refinery gas and oven gas etc.) water vapour turns
Change, coal (containing coke and petroleum coke etc.) reforming hydrogen manufacturing and the hydrogen producing technologies such as urea or ammonia cracking hydrogen production, water electrolysis, but fossil energy
Source conversion regime can not avoid zero carbon emission completely always.Water electrolysis hydrogen producing obtains the hydrogen of high-purity, hydrogen by electrolysis water
Gas purity may be up to 99.9999%, and still, the power consumption of water electrolysis hydrogen producing is too big, cause cost excessively high.
However, a large amount of appearance of fast development and the abandonment of wind-powered electricity generation provide new chance for water electrolysis hydrogen production.According to
In October, 2011, Energy Research Institute, National Development and Reform Commission issued " Development of Wind Power In China route map 2050 ", had proposed wind-powered electricity generation
Start and will continue to become one of the main force's energy technology for realizing low-carbon energy strategy.Since the uncertainty of wind-power electricity generation is high,
The fluctuation of wind power output power and frequency changes with the variation of wind speed, therefore, is affected by season, environment, position etc.,
Its output power quality is poor, reliability is low, and large-scale wind power integration is affected to power network safety operation；Meanwhile electricity
Net is limited to the consumption of wind-power electricity generation, causes abandonment to abandon electricity serious.Water electrolysis hydrogen production is carried out using electricity is abandoned, it is not only possible to promote wind
The efficiency of energy utilization of electric system, and addition product hydrogen is produced, realize the comprehensive utilization of wind energy resources.
One of big, seriously polluted, intractable waste water is measured in the China that also becomes gradually of urea waste water, by the extensive of people
Concern.The problem of in order to handle water-saving and emission-reducing and environmental protection well, it would be desirable to which depth is carried out to waste water using reasonable technology
It handles and is used, achieve the purpose that sustainable development.In urea waste water contain a large amount of urea, compared to traditional biochemistry,
Physical treatment method carries out electrolysis processing to urea waste water, the purification of sewage not only may be implemented, moreover it is possible to realize sewage resource
Change.Meanwhile the normal potential of urea is 0.37V, far below the theoretical voltage (1.23V) of electrolysis water.Therefore urea waste water may
Electrolytic hydrogen production is realized under lower energy consumption.The reaction equation of urea electrolysis are as follows:
Cathode: 6H2O+6e-→3H2+6OH-
Anode: CO (NH2)2+6OH-→N2+5H2O+CO2+6e-
Overall reaction: CO (NH2)2+H2O→N2+3H2+CO2E=0.37V
From reaction equation, being electrolysed urea not only can use the hydrogen of urea itself, and hydrogen can also be obtained from water, because
This, the utilization rate of hydrogen is very high.
But since wind power output has randomness, intermittence and fluctuation, when extra wind-powered electricity generation is directly accessed electricity
When solving slot, the service life of hydrogen output and electrolytic cell can be impacted.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, it is high for high safety to provide a kind of urea waste water
Efficiency wind power hydrogen production peak-frequency regulation system, the system can abandon the electrolytic hydrogen production that electricity realizes urea in urea waste water using abandonment,
And the hydrogen output and service life of electrolytic cell are preferable, the flexibility of system is excellent.
In order to achieve the above objectives, urea waste water of the present invention is used for high safety high efficiency wind power hydrogen production peak-frequency regulation system
System includes wind generator system, power divider, transformer, supercapacitor, battery, electrolyte storage tank, filter device, gives up
Water storage tank, urea waste water case, electrolytic cell, hydrogen gas buffer, hydrogen gas compressor, hydrogen container, fuel cell, oxygen surge tank, oxygen
Air compressor, oxygen container, tuning controller, AC-DC controller and DC-AC controller；
The output end of wind generator system is connected with the input terminal of power divider, two output ends of power divider
It is connected respectively with the input terminal of the input terminal of transformer and AC-DC controller, the electricity of the electric discharge interface and electrolytic cell of battery
Source interface is connected, and urea waste water case is successively connected through filter device and wastewater storage tank with the liquid inlet of electrolytic cell, electrolysis
The cathode product outlet of slot is successively connected through hydrogen gas buffer and hydrogen gas compressor with the entrance of hydrogen container, the outlet of hydrogen container
It is connected with the hydrogen inlet of fuel cell, the output end of fuel cell is connected with the input terminal of transformer, the sun of electrolytic cell
Pole product exit is successively connected through oxygen surge tank and oxygen compressor with the entrance of oxygen container；The output end and electricity of transformer
Net is connected；
Tuning controller is connected with wind generator system, power divider, electrolytic cell, supercapacitor and fuel cell
It connects.
The output end of AC-DC controller is connected with the charging interface of supercapacitor, the electric discharge interface of supercapacitor
It is connected with the input terminal of the charging interface of battery and DC-AC controller, output end and the DC-AC controller of fuel cell
Input terminal is connected, and the output end of DC-AC controller is connected with the input terminal of transformer, tuning controller and supercapacitor
It is connected.
Flow control valve is provided on pipeline between wastewater storage tank and electrolytic cell.
Electrolyte in the electrolytic cell is alkaline electrolyte, and when electrolytic cell is opened, it is 0.6V, electricity that decomposition voltage, which is first arranged,
The cathode product of the cathode product outlet output of solution slot enters in hydrogen gas buffer, then enters hydrogen storage by hydrogen gas compressor
In tank, the connection between the anodic product outlet and oxygen surge tank of electrolytic cell is disconnected at this time, and anodic product is directly discharged to greatly
In gas；After being electrolysed preset time, when cathode is generated without gas, decomposition voltage is improved to 1.3V, the anode of electrolytic cell produces at this time
Connection between object outlet and oxygen surge tank is opened, and the anodic product of the anodic product outlet output of electrolytic cell passes through oxygen pressure
Contracting machine enters in oxygen container；Changed according to the liquid level of electrolyzer, urea waste water is mended into electrolytic cell by wastewater storage tank, and follow
The ring above process supplements electrolyte to electrolytic cell by electrolyte storage tank.
When the generated output of wind generator system is greater than power grid demand, tuning controller controls power divider for wind-force
The extra electricity that electricity generation system generates is stored in supercapacitor, after supercapacitor is fully charged, is then carried out to battery
Charging, after battery is fully charged, tuning controller control electrobath start, by electrolytic cell to the urea in urea waste water into
Row electrolytic hydrogen production, and the hydrogen of generation is stored in hydrogen container after hydrogen gas buffer buffering, hydrogen gas compressor compression.
When the output power of wind generator system is not able to satisfy power grid demand, tuning controller starts supercapacitor,
Power grid is powered by supercapacitor, when supercapacitor electricity deficiency, tuning controller starting fluid battery, combustion
Expect that battery generates direct current using the hydrogen in hydrogen container, the direct current of generation is then converted into exchange through DC-AC controller
It is supplied to power grid after electricity, provides electric energy by battery at this time for electrolytic cell, hydrogen is generated by electrolytic tank electrolysis urea, works as storage
When the remaining capacity of battery is lower than minimum electricity preset value, then battery stops to electrolyzer with electricity.
The mass concentration of urea is 0.1%-100% in urea waste water in wastewater storage tank.
The purity of hydrogen gas compressor inlet hydrogen is 99.9%.
The purity of oxygen compressor inlet oxygen is 99.9%.
The invention has the following advantages:
Urea waste water of the present invention for high safety high efficiency wind power hydrogen production peak-frequency regulation system when specific operation,
When the output power of wind generator system is greater than power grid demand, tuning controller controls power divider for wind generator system
The extra electricity generated is stored in supercapacitor and battery, and to electrolyzer with electricity hydrogen manufacturing, to dissolve wind-power electricity generation system
The abandonment power of system, the generating efficiency and wind-resources for improving wind generator system utilize level.In addition, working as the output of electricity generation system
When power is not able to satisfy power grid demand, first passes through supercapacitor and power grid is powered, when supercapacitor electricity deficiency,
Then power grid is powered by fuel cell collaboration, battery is continued to electrolyzer with electricity hydrogen manufacturing at this time, until electric power storage
Pond electricity closes electrolytic cell down to after a certain amount of；Battery is installed additional to electrolytic cell, guarantees that accumulator electric-quantity is in a certain range
It is interior, electrolysis unit can be effectively prevented due to continually switching caused by wind power fluctuation, can effectively improve system
Stability, safety and service life；In addition, realizing wastewater treatment by being electrolysed to the urea in urea waste water
Meanwhile being fuel cell with hydrogen gas, environment protection significance with higher and comprehensive benefit, also, relative to traditional water electrolysis,
The voltage of urea electrolytic hydrogen production is 0.37V, is greatly saved the power consumption of electrolytic hydrogen production.
In addition, it is necessary to explanation, when the output-power fluctuation of wind generator system, the present invention first passes through super capacitor
Device charge or discharge, it is small using ultracapacitor energy storage internal resistance, have extended cycle life, power density is high and the spy of fast response time
Point effectively stabilizes the fluctuation of wind-powered electricity generation, reduces direct impact of the wind-powered electricity generation fluctuation to power grid and electrolytic cell, while passing through super electricity
Container makes up the slow problem of fuel cell dynamic responding speed, with the dynamic responding speed of lifting system.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Wherein, 1 it is wind generator system, 2 be power divider, 3 be AC-DC controller, 4 be DC-AC controller, 5 is
Transformer, 6 be supercapacitor, 7 be electrolytic cell, 8 be battery, 9 be oxygen surge tank, 10 be hydrogen gas buffer, 11 be oxygen
Air compressor, 12 be hydrogen gas compressor, 13 be oxygen container, 14 be hydrogen container, 15 be wastewater storage tank, 16 be filter device, 17 be
Electrolyte storage tank, 18 be urea waste water case, 19 be fuel cell, 20 be tuning controller.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
With reference to Fig. 1, urea waste water of the present invention includes for high safety high efficiency wind power hydrogen production peak-frequency regulation system
Wind generator system 1, power divider 2, transformer 5, supercapacitor 6, battery 8, electrolyte storage tank 17, filter device
16, wastewater storage tank 15, urea waste water case 18, electrolytic cell 7, hydrogen gas buffer 10, hydrogen gas compressor 12, hydrogen container 14, fuel electricity
Pond 19, oxygen surge tank 9, oxygen compressor 11, oxygen container 13 and tuning controller 20, AC-DC controller 3 and DC-AC control
Device 4；Two output ends of the output end of wind generator system 1 and power divider 2 respectively with the input terminal and AC- of transformer 5
The input terminal of DC controller 3 is connected, and the electric discharge interface of battery 8 is connected with the power interface of electrolytic cell 7, urea waste water case
18 are successively connected through filter device 16 and wastewater storage tank 15 with the liquid inlet of electrolytic cell 7, the cathode product outlet of electrolytic cell 7
Successively it is connected through hydrogen gas buffer 10 and hydrogen gas compressor 12 with the entrance of hydrogen container 14, the outlet of hydrogen container 14 and fuel electricity
The hydrogen inlet in pond 19 is connected, and the output end of fuel cell 19 is connected with the input terminal of transformer 5, the anode of electrolytic cell 7
Product exit is successively connected through oxygen surge tank 9 and oxygen compressor 11 with the entrance of oxygen container 13；The output end of transformer 5
It is connected with power grid；Tuning controller 20 and wind generator system 1, power divider 2, electrolytic cell 7, supercapacitor 6 and combustion
Material battery 19 is connected.
The output end of AC-DC controller 3 is connected with the charging interface of supercapacitor 6, and the electric discharge of supercapacitor 6 connects
Mouth is connected with the input terminal of the charging interface of battery 8 and DC-AC controller 4, and the output end and DC-AC of fuel cell 19 are controlled
The input terminal of device 4 processed is connected, and the output end of DC-AC controller 4 is connected with the input terminal of transformer 5, tuning controller 20
It is connected with supercapacitor 6.
The present invention at work, when the generated output of wind generator system 1 is greater than power grid demand, control by tuning controller 20
The extra electricity that power divider 2 processed generates wind generator system 1 is stored in supercapacitor 6, when supercapacitor 6 is filled
It after full electricity, then charges to battery 8, after battery 8 is fully charged, tuning controller 20 controls electrolytic cell 7 and starts, and passes through
Electrolytic cell 7 carries out electrolytic hydrogen production to urea waste water, and the hydrogen of generation is pressed through the buffering of hydrogen gas buffer 10, hydrogen gas compressor 12
It is stored in after contracting in hydrogen container 14.
When the output power of wind generator system 1 is not able to satisfy power grid demand, tuning controller 20 starts super capacitor
Device 6 is powered power grid by supercapacitor 6, when 6 not enough power supply of supercapacitor, the starting combustion of tuning controller 20
Expect that battery 19, fuel cell 19 generate direct current using the hydrogen in hydrogen container 14, then control the direct current of generation through DC-AC
Device 4 processed supplies power grid after being converted to alternating current, is at this time that electrolytic cell 7 provides electric energy by battery 8, is electrolysed by electrolytic cell 7
Urea generates hydrogen, and when the remaining capacity of battery 8 is lower than minimum electricity preset value, then battery 8 stops supplying electrolytic cell 7
Electricity.
In addition, it is necessary to illustrate, in the unlatching of electrolytic cell 7, it is 0.6V that decomposition voltage, which is first arranged,, occur in electrolytic cell 7
Cell reaction are as follows:
Cathode: 6H2O+6e-→3H2+6OH-
Anode: CO (NH2)2+6OH-→N2+5H2O+CO2+6e-
Overall reaction: CO (NH2)2+H2O→N2+3H2+CO2E=0.37V
The cathode product outlet connection hydrogen gas buffer 10 of electrolytic cell 7, and enter hydrogen container 14 by hydrogen gas compressor 12
In；The connection between the anodic product outlet and oxygen surge tank 9 of electrolytic cell 7 disconnects at this time, and the anodic product of electrolytic cell 7 is direct
It is discharged into atmosphere.
After being electrolysed a period of time, when the cathode of electrolytic cell 7 is generated without gas, the decomposition voltage of electrolytic cell 7 is improved extremely
1.3V, the cell reaction occurred in electrolytic cell 7 at this time are as follows:
Anode reaction equation: 4OH?→O2+2H2O+4e?
Cathode reaction equation: 2H2O+2e?→H2+2OH?
Overall reaction equation: 2H2O→2H2+O2
Anodic product outlet by electrolytic cell 7 at this time and the connection between oxygen surge tank 9 are opened, and are compressed by oxygen
Machine 11 enters in oxygen container 13；Electrolytic cell 7 cathode product outlet connection hydrogen gas buffer 10, and by hydrogen gas compressor 12 into
Enter in hydrogen container 14；
The mass concentration of urea is 0.1%-100% in urea waste water in wastewater storage tank 15；12 inlet of hydrogen gas compressor
The purity of hydrogen is 99.9%；The purity of 11 inlet oxygen of oxygen compressor is 99.9%.
In embodiment provided herein, it should be understood that disclosed technology contents, it can be by another way
It realizes.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, can be one kind
Logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of urea waste water is used for high safety high efficiency wind power hydrogen production peak-frequency regulation system, which is characterized in that sent out including wind-force
Electric system (1), power divider (2), transformer (5), supercapacitor (6), battery (8), electrolyte storage tank (17), filtering
Device (16), wastewater storage tank (15), urea waste water case (18), electrolytic cell (7), hydrogen gas buffer (10), hydrogen gas compressor (12),
Hydrogen container (14), fuel cell (19), oxygen surge tank (9), oxygen compressor (11), oxygen container (13), tuning controller
(20), AC-DC controller (3) and DC-AC controller (4)；
The output end of wind generator system (1) is connected with the input terminal of power divider (2), and two of power divider (2)
Output end is connected with the input terminal of the input terminal of transformer (5) and AC-DC controller (3) respectively, and the electric discharge of battery (8) connects
Mouth is connected with the power interface of electrolytic cell (7), and urea waste water case (18) is successively through filter device (16) and wastewater storage tank (15)
It is connected with the liquid inlet of electrolytic cell (7), the cathode product of electrolytic cell (7) exports successively through hydrogen gas buffer (10) and hydrogen
Compressor (12) is connected with the entrance of hydrogen container (14), the outlet and the hydrogen inlet phase of fuel cell (19) of hydrogen container (14)
Connection, the output end of fuel cell (19) is connected with the input terminal of transformer (5), the anodic product of electrolytic cell (7) export according to
It is secondary to be connected through oxygen surge tank (9) and oxygen compressor (11) with the entrance of oxygen container (13)；The output end of transformer (5) with
Power grid is connected；
Tuning controller (20) and wind generator system (1), power divider (2), electrolytic cell (7), supercapacitor (6) and combustion
Material battery (19) is connected.
2. urea waste water according to claim 1 is used for high safety high efficiency wind power hydrogen production peak-frequency regulation system, feature
It is, the output end of AC-DC controller (3) is connected with the charging interface of supercapacitor (6), and supercapacitor (6) are put
Electrical interface is connected with the input terminal of the charging interface of battery (8) and DC-AC controller (4), the output of fuel cell (19)
End is connected with the input terminal of DC-AC controller (4), the input terminal phase of the output end and transformer (5) of DC-AC controller (4)
Connection, tuning controller (20) are connected with supercapacitor (6).
3. urea waste water according to claim 1 is used for high safety high efficiency wind power hydrogen production peak-frequency regulation system, feature
It is, the electrolyte in the electrolytic cell (7) is alkaline electrolyte, and when electrolytic cell (7) is opened, decomposition voltage, which is first arranged, is
The cathode product of 0.6V, the cathode product outlet output of electrolytic cell (7) enter in hydrogen gas buffer (10), then pass through hydrogen
Compressor (12) enters in hydrogen container (14), at this time the company between the anodic product outlet and oxygen surge tank (9) of electrolytic cell (7)
Disconnection is connect, anodic product is directly discharged in atmosphere；After being electrolysed preset time, when cathode is generated without gas, electrolysis electricity is improved
It is depressed into 1.3V, the connection between the anodic product outlet and oxygen surge tank (9) of electrolytic cell (7) is opened at this time, electrolytic cell (7)
The anodic product of anodic product outlet output enters in oxygen container (13) by oxygen compressor (11)；According to the electrolytic cell
(7) fluid change mends urea waste water into electrolytic cell (7) by wastewater storage tank (15), and recycles the above process, passes through electrolyte
Storage tank (18) supplements electrolyte to electrolytic cell (7).
4. urea waste water according to claim 1 is used for high safety high efficiency wind power hydrogen production peak-frequency regulation system, feature
It is, is provided with flow control valve on the pipeline between wastewater storage tank (15) and electrolytic cell (7).
5. urea waste water according to claim 2 is used for high safety high efficiency wind power hydrogen production peak-frequency regulation system, feature
It is, when the generated output of wind generator system (1) is greater than power grid demand, tuning controller (20) controls power divider
(2) the extra electricity that wind generator system (1) generates is stored in supercapacitor (6), when supercapacitor (6) is fully charged
Afterwards, then it charges to battery (8), after battery (8) is fully charged, tuning controller (20) controls electrolytic cell (7) starting,
Electrolytic hydrogen production is carried out to the urea in urea waste water by electrolytic cell (7), and the hydrogen of generation is slow through hydrogen gas buffer (10)
It is stored in hydrogen container (14) after punching, hydrogen gas compressor (12) compression.
6. urea waste water according to claim 2 is used for high safety high efficiency wind power hydrogen production peak-frequency regulation system, feature
It is, when the output power of wind generator system (1) is not able to satisfy power grid demand, tuning controller (20) starts super capacitor
Device (6) is powered power grid by supercapacitor (6), when supercapacitor (6) not enough power supply, tuning controller
(20) starting fluid battery (19), fuel cell (19) generate direct current using the hydrogen in hydrogen container (14), then will generate
Direct current supply power grid after DC-AC controller (4) is converted to alternating current, continue as electrolytic cell by battery (8) at this time
(7) electric energy is provided, urea hydrogen making is electrolysed, when the remaining capacity of battery (8) is lower than minimum electricity preset value, then electric power storage
Pond (8) stops powering to electrolytic cell (7).
7. urea waste water according to claim 1 is used for high safety high efficiency wind power hydrogen production peak-frequency regulation system, feature
It is, the mass concentration of urea is 0.1%-100% in urea waste water in wastewater storage tank (15).
8. urea waste water according to claim 2 is used for high safety high efficiency wind power hydrogen production peak-frequency regulation system, feature
It is, the purity of hydrogen gas compressor (12) inlet hydrogen is 99.9%.
9. urea waste water according to claim 2 is used for high safety high efficiency wind power hydrogen production peak-frequency regulation system, feature
It is, the purity of oxygen compressor (11) inlet oxygen is 99.9%.
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| CN110601192A (en) * | 2019-09-30 | 2019-12-20 | 长江勘测规划设计研究有限责任公司 | Hydroelectric power station hydroelectric power generation and hydrogen production energy storage system |
| CN111404181A (en) * | 2020-03-19 | 2020-07-10 | 国电联合动力技术有限公司 | Multi-energy coupling complementary energy storage system and energy storage control method |
| CN112952872A (en) * | 2021-04-16 | 2021-06-11 | 山东大学 | Wind-hydrogen ammonia-thermoelectric energy storage peak regulation combined power generation system and method |
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