CN106119885A - A kind of aqueous slkali electrolysis hydrogen production device and hydrogen production process - Google Patents
A kind of aqueous slkali electrolysis hydrogen production device and hydrogen production process Download PDFInfo
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- CN106119885A CN106119885A CN201610592505.0A CN201610592505A CN106119885A CN 106119885 A CN106119885 A CN 106119885A CN 201610592505 A CN201610592505 A CN 201610592505A CN 106119885 A CN106119885 A CN 106119885A
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 172
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 172
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 133
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 73
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 41
- 239000003513 alkali Substances 0.000 claims abstract description 58
- 238000001035 drying Methods 0.000 claims abstract description 58
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 57
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000001301 oxygen Substances 0.000 claims abstract description 56
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 42
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 42
- 230000008676 import Effects 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000003792 electrolyte Substances 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 239000007792 gaseous phase Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 239000012071 phase Substances 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 11
- 239000002808 molecular sieve Substances 0.000 claims description 9
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 9
- 239000013589 supplement Substances 0.000 claims description 8
- 239000010865 sewage Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims 1
- 239000000243 solution Substances 0.000 abstract description 14
- 239000007864 aqueous solution Substances 0.000 abstract description 2
- 238000010924 continuous production Methods 0.000 abstract description 2
- 230000008929 regeneration Effects 0.000 description 8
- 238000011069 regeneration method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000011049 filling Methods 0.000 description 3
- 230000003020 moisturizing effect Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002585 base Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/70—Assemblies comprising two or more cells
- C25B9/73—Assemblies comprising two or more cells of the filter-press type
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a kind of aqueous slkali electrolysis hydrogen production device in device for producing hydrogen field, including DC source, electrolysis bath, hydrogen separator and oxygen separator, the bottom of electrolysis bath is provided with alkali liquor inlet；The circulation fluid import of oxygen separator is connected on the top, anode region of electrolysis bath, and the gaseous phase outlet at oxygen separator top connects air through valve；The circulation fluid import of hydrogen separator is connected on the top, cathode chamber of electrolysis bath, and the gaseous phase outlet at hydrogen separator top is connected to hydrogen scrubber, and hydrogen scrubber connects the import of moisture trap through three-way valve one；Hydrogen separator connects alkali liquor inlet through alkali solution cooler, NaOH solution circulating pump with alkali liquor filter successively with the outlet of oxygen separator bottom cycle liquid；The gas outlet of moisture trap is connected to hydrogen-holder through three-way valve two, drying system.KOH or the NaOH aqueous solution that electrolyte uses mass concentration to be 25 ~ 30%, this device can safe hydrogen manufacturing, hydrogen production efficiency is high, and equipment funds put into low, and continuous production is good.
Description
Technical field
The present invention relates to a kind of hydrogen gas production device and production method, particularly to a kind of electrolysis hydrogen production device and hydrogen manufacturing thereof
Method.
Background technology
In prior art, there is a kind of water electrolysis hydrogen production system, its application number: 201210422579.1；The applying date: 2012-
10-30；This device includes electric supply installation, electrolysis bath, hydrogen separator, oxygen separator, purification column, electric supply installation and electrolysis bath phase
Even, hydrogen separator, oxygen separator are connected on electrolysis bath, and hydrogen separator is connected with each other with purification column.Of the present invention
Water electrolysis hydrogen production system, obtains hydrogen by akaline liquid electrolytic separation, and through purification column, hydrogen is purified process, to obtain
Obtain highly purified hydrogen.
In prior art, also have a kind of hydrogen generating system, its application number: 201320772271.X；The applying date: 2013-11-
28；Publication number: 203625483U；Publication date: 2014-06-04, this device includes automatic water supplement subsystem, the electricity being sequentially connected with
Solve subsystem, gas isolated subsystem and hydrogen filtration subsystem, described hydrogen filtration subsystem arrange standard hydrogen outlet with
Waste gas outlet, also includes hydrogen caliberating device, the outside port connection standard hydrogen cylinder of described hydrogen standard set-up, described automatically
Moisturizing subsystem includes header tank, arranges electrolysis water inlet, electrolysis water inlet and muddy water outlet, described collection in described header tank
Water tank arranges filter at electrolysis water inlet；Electrolysis water inlet connects electrolysis subsystem.
Of the prior art it is disadvantageous in that: existing hydrogen generating system mainly solves asking of how hydrogen manufacturing theoretically
Topic, and cannot be used for production practices, and it fails to solve the problem that under original state, hydrogen is impure, how the asking of high-efficient washing hydrogen
Topic, its electrolysis usefulness is the highest, and hydrogen production process controls inconvenience, and the poor continuity produced.
Summary of the invention
It is an object of the invention to provide a kind of aqueous slkali electrolysis hydrogen production device so that it is can safe hydrogen manufacturing, hydrogen production efficiency is high,
Equipment funds put into low, and continuous production is good.
To this end, the present invention is achieved by following technical solution: a kind of aqueous slkali electrolysis hydrogen production device, including straight
Stream power supply, electrolysis bath, hydrogen separator and oxygen separator, the positive source of DC source and negative pole are respectively turned on the anode of electrolysis bath
Plate and minus plate, the bottom of electrolysis bath is provided with alkali liquor inlet；The circulation fluid of oxygen separator is connected on the top, anode region of electrolysis bath
Import, the gaseous phase outlet at oxygen separator top connects air through valve；The circulation of hydrogen separator is connected on the top, cathode chamber of electrolysis bath
Liquid import, import that the gaseous phase outlet at hydrogen separator top is connected to hydrogen scrubber the overflow extending in hydrogen scrubber
Below Kou, the import of the outlet connecting tee valve one at hydrogen scrubber top, a way outlet of three-way valve one is through silk screen flame arrester
Connecting air, another way outlet of three-way valve one connects the import of moisture trap；Bottom hydrogen separator and oxygen separator respectively
Being provided with circulation fluid outlet, the outlet of described circulation fluid connects alkali liquor through alkali solution cooler, NaOH solution circulating pump with alkali liquor filter successively
Inlet；The gas outlet of described moisture trap is connected to drying system through three-way valve two, and the outlet of drying system is through pipeline mistake
Filter is connected to hydrogen-holder；It is respectively equipped with water-cooled body in described hydrogen separator and oxygen separator；The end of moisture trap
Portion is connected to hydrogen drain water seal mechanism through valve；Described hydrogen scrubber is provided with water supplement port, and the overfall of hydrogen scrubber is even
It is connected to hydrogen separator.
Operationally, KOH or the NaOH aqueous solution that its electrolyte uses mass concentration to be 25 ~ 30%, in electrolysis for the present invention
Time, anode produces oxygen, and negative electrode produces hydrogen；In work process, electrolysis bath is full liquid, is respectively turned on hydrogen by two-way outlet
Separator and oxygen separator, realize hydrogen in hydrogen separator with oxygen separator and separate and oxygen separating, and aqueous slkali can pass through alkali liquor
Circulating pump is recycled in electrolysis bath again, and the hydrogen after separation is scrubbed, gas-water separation, enter hydrogen-holder after drying.Logical
Cross three-way valve one can select by after silk screen flame arrester, hydrogen is lighted burning in an atmosphere, in system, produce hydrogen purity
Time the highest, the impact of other gases can be avoided, especially at the initial stage of production, intrasystem residual gas can be avoided to enter hydrogen storage
In tank.Additionally, the consumption of electrolyte can supplement in entrance system by hydrogen scrubber, alkali-free in the water supplemented, can fully wash
Wash hydrogen, it is to avoid hydrogen is carried secretly the alkali granule of alkali liquor or precipitation, the water after cleaning by mixing with the alkali liquor in hydrogen separator,
Last mix with the alkali liquor extracted out in oxygen separator the most again so that it is during entrance electrolysis bath, be thoroughly mixed, it is to avoid electrolysis bath
Uneven the brought problem of interior local base concentration.Compared with prior art, the simple in construction, easy to control of the present invention, it is possible to
Solving the problem that initial gas when producing hydrogen is impure, after producing hydrogen, can produce continuously, its equipment investment is little, manages low cost.
As a further improvement on the present invention, described drying system includes drying tower A, drying tower B and re-generatively cooled device, institute
State drying tower A, drying tower has identical internal structure, includes Wai Ta and Nei Ta being coaxially disposed respectively, inner tower and outside tower it
Between be provided with molecular sieve, interior tower bottom is connected with outer tower, and Nei Ta center is provided with heater, and Nei Ta top is provided with interior tower air inlet/outlet,
Wai Ta top is provided with outer tower air inlet/outlet；Described re-generatively cooled device includes two gas phase mouths that can exchange, and also includes cooling down water
Import and export, and the sewage draining exit that inner bottom part is arranged, sewage draining exit is connected to hydrogen drain water seal mechanism through valve；Going out of three-way valve two
The import of three-way valve three is connected on mouth one tunnel, and another road is connected to the arbitrary gas phase mouth on re-generatively cooled device, and three-way valve three two-way goes out
Mouth one tunnel is connected to the interior tower air inlet/outlet of drying tower A, and another road is connected to the interior tower air inlet/outlet of drying tower B；Drying tower A and
The interior tower air inlet/outlet of drying tower B also connects the outlet of described drying system through three-way valve four；The outer tower air inlet/outlet of drying tower A
It is connected with a gas phase mouth of re-generatively cooled device, the outer tower air inlet/outlet of drying tower B and another gas phase mouth of re-generatively cooled device
It is connected.The program passes through drying tower A, drying tower B and the setting of re-generatively cooled device so that one in two drying towers in work
Making, another then utilizes the heat of hydrogen to be dried the regeneration of tower, ambient atmos need not be utilized to regenerate so that drying tower A
Can switch at any time under work and two kinds of operating modes of regeneration with drying tower B, it is not necessary to the work of halt system so that hydrogen manufacturing
Seriality is more preferable.
As a further improvement on the present invention, described electrolysis bath is filter-press type dipolar configuration, and middle plate is positive pole, two ends
Pole plate is negative pole, and feed tube is arranged on electrolysis bath bottom, and the top on cathode chamber is provided with the outlet of hydrogen liquid, and top, anode region is provided with oxygen liquid
Outlet.Hydrogen liquid therein refers to that hydrogeneous alkali liquor, oxygen liquid refer to oxygen containing alkali liquor.The structure of this electrolysis bath makes alkali liquor be prone to point
Joining, hydrogen liquid and oxygen liquid can be sufficiently separated, and electric tank working efficiency is high.
Further, described hydrogen scrubber, oxygen separator and hydrogen separator are respectively provided with control pressure and liquid
The sensor of position.Regulated by pressure and liquid level so that in device, can stably produce hydrogen.
Further, the pipeline of the gaseous phase outlet of described hydrogen scrubber bypasses connection and have oxygen analyzer in online hydrogen；
Bypass connection on the pipeline of the gaseous phase outlet of described oxygen separator and have hydrogen analyzer in online oxygen.Permissible by corresponding analyser
Learn the purity of institute's hydrogen producing and oxygen, in order to hydrogen storage and emptying can be realized by the conversion of respective valve；Meanwhile, permissible
By the purity of hydrogen producing and oxygen, intrasystem each running parameter is adjusted so that it is be in optimal product hydrogen state.
In order to be able to realize automatic pollution discharge, with hydrogen drain water seal mechanism phase bottom described moisture trap and re-generatively cooled device
Valve even is automatic blowdown valve.
For realizing automatically controlling, described three-way valve is Pneumatic three-way ball valve.
Present invention also offers the method utilizing said apparatus to carry out hydrogen manufacturing, use KOH or NaOH alkali liquor as electrolyte,
Alkali mass percentage concentration in alkali liquor in electrolysis bath is 25 ~ 30%, and the operating temperature of electrolysis bath is 85 ~ 90 DEG C, rated current
900 ~ 950A, voltage 48 ~ 55V.Electrolyte can also there was added the V of mass concentration 0.2 ~ 0.3%2O5, V2O5Addition can increase
Add the ionization rate of water in alkali liquor, improve the electrolysis of water, reduce energy consumption, optimal hydrogen manufacturing effect can be obtained.
Accompanying drawing explanation
Fig. 1 is fundamental diagram of the present invention.
Fig. 2 is drying tower structural representation.
Wherein, 1 electrolysis bath, 2 alkali liquor filters, 3 NaOH solution circulating pumps, 4 alkali solution coolers, 5 hydrogen separators, 6 oxygen separators,
7 hydrogen scrubbers, 8 three-way valve one, 9 silk screen flame arrester, 10 moisture traps, 11 drying tower A, 1101 outer tower air inlet/outlets,
Tower air inlet/outlet in 1102, tower in 1103,1104 outer towers, 1105 molecular sieves, 1106 heaters, 12 re-generatively cooled devices, 13 are dried
Tower B, 14 piping filters, 15 three-way valve two, 16 three-way valve three, 17 three-way valve four, 18 hydrogen drain water seal mechanisms, 19 online hydrogen
Middle oxygen analyzer, hydrogen analyzer in 20 online oxygen, 21 blowoff valves one, 22 blowoff valves two, 23 DC sources.
Additionally, P is piezometer or pressure switch, T is thermometer or temperature relay, and L is liquidometer, and K is filling pipe
Interface, M is alkali liquor supply port.
Detailed description of the invention
As it can be seen, be a kind of aqueous slkali electrolysis hydrogen production device, mainly include DC source 23, electrolysis bath 1, hydrogen separator
5 and oxygen separator 6, the positive source of DC source 23 and negative pole are respectively turned on positive plate and the minus plate of electrolysis bath 1, electrolysis bath
The bottom of 1 is provided with alkali liquor inlet；The circulation fluid import of oxygen separator 6, oxygen separator 6 are connected in the top, anode region of electrolysis bath 1
The gaseous phase outlet at top connects air through valve；The circulation fluid import of hydrogen separator 5 is connected on the top, cathode chamber of electrolysis bath 1, and hydrogen divides
Gaseous phase outlet from device 5 top is connected to the import of hydrogen scrubber 7 and extends to below the overfall in hydrogen scrubber 7,
The import of the outlet connecting tee valve 1 at hydrogen scrubber 7 top, a way outlet of three-way valve 1 is connected through silk screen flame arrester 9
Air, another way outlet of three-way valve 1 connects the import of moisture trap 10；Bottom hydrogen separator 5 and oxygen separator 6 respectively
Being provided with circulation fluid outlet, the outlet of described circulation fluid connects alkali through alkali solution cooler 4, NaOH solution circulating pump 3 with alkali liquor filter 2 successively
Liquid inlet；The gas outlet of described moisture trap 10 is connected to drying system through three-way valve 2 15, the outlet warp of drying system
Piping filter 14 is connected to hydrogen-holder；It is respectively equipped with water-cooled body in described hydrogen separator 5 and oxygen separator 6；Air water
The bottom of separator 10 is connected to hydrogen drain water seal mechanism 18 through valve；Described hydrogen scrubber 7 is provided with water supplement port, and hydrogen is washed
The overfall washing device 7 is connected to hydrogen separator 5.Drying system includes drying tower A11, drying tower B13 and re-generatively cooled device 12, dry
Dry tower A11, drying tower have identical internal structure；As a example by drying tower A11, its structure includes the outer tower 1104 being coaxially disposed
With interior tower 1103, between interior tower 1103 and outer tower 1104, it is provided with molecular sieve 1105, connects with outer tower 1104 bottom interior tower 1103, interior
Tower 1103 center is provided with heater 1106, and interior tower 1103 top is provided with interior tower air inlet/outlet 1102, outside outer tower 1104 top is provided with
Tower air inlet/outlet 1101；Re-generatively cooled device 12 includes two gas phase mouth I and O that can exchange, and also includes the import and export cooling down water,
And the sewage draining exit that inner bottom part is arranged, sewage draining exit is connected to hydrogen drain water seal mechanism 18 through valve；The outlet one of three-way valve 2 15
The import of three-way valve 3 16 is connected on road, and another road is connected to the arbitrary gas phase mouth on re-generatively cooled device 12, three-way valve 3 16 two-way
Exporting a road and be connected to the interior tower air inlet/outlet of drying tower A11, another road is connected to the interior tower air inlet/outlet of drying tower B13；Dry
The interior tower air inlet/outlet of dry tower A11 and drying tower B13 also connects the outlet of described drying system through three-way valve 4 17；Drying tower
The outer tower air inlet/outlet of A11 is connected with a gas phase mouth of re-generatively cooled device 12, the outer tower air inlet/outlet of drying tower B13 and regeneration
Another gas phase mouth of cooler 12 is connected.
Electrolysis bath 1 is filter-press type dipolar configuration, and middle plate is positive pole, and two ends pole plate is negative pole, and feed tube is arranged on electricity
Solving groove 1 bottom, the top on cathode chamber is provided with the outlet of hydrogen liquid, and top, anode region is provided with the outlet of oxygen liquid.
Control pressure and the sensor of liquid level it is respectively provided with on hydrogen scrubber 7, oxygen separator 6 and hydrogen separator 5.
Bypass connection on the pipeline of the gaseous phase outlet of hydrogen scrubber 7 and have oxygen analyzer 19 in online hydrogen；Described oxygen separating
Bypass connection on the pipeline of the gaseous phase outlet of device 6 and have hydrogen analyzer 20 in online oxygen.
Described moisture trap 10 is automatic with the valve being connected with hydrogen drain water seal mechanism 18 bottom re-generatively cooled device 12
Blowoff valve, divides and becomes blowoff valve 1 and blowoff valve 2 22.The all Pneumatic three-way ball valves of three-way valve in this device, work
Time, without electric spark, safe and reliable.
The water supplement port of hydrogen scrubber 7 is connected to filling pipe interface K through water pipe, and this filling pipe interface K can be with moisturizing
Pump discharge is connected, for the water of replenishment system internal consumption.The import of NaOH solution circulating pump 3 is also connected to alkali liquor supply port M, if desired
Supplement alkali liquor, it is ensured that the concentration of alkali liquor is in OK range.Piezometer or pressure switch P, thermometer or temperature relay T with
And liquidometer L is used for showing or detect pressure, temperature and liquid level, automatically controlling for system.
Its main working process include electrolytic hydrogen production, purify, be dried, store, cool down, drying tower regeneration, blowdown etc., initially
During work, needing to empty intrasystem air, inside needs to clean, then the initial stage worked, can be by prepared impure hydrogen
Gas empties through three-way valve 1 and silk screen flame arrester 9 and burns.When normally working, the circulating path of electrolyte is: from NaOH solution circulating pump
3 outlets feed in electrolysis bath 1 after alkali liquor filter 2, and the oxygen liquid that the anode region in electrolysis bath 1 produces is advanced into oxygen separator
6, the hydrogen liquid that cathode chamber in electrolysis bath 1 produces is advanced into after hydrogen separator 5, oxygen and hydrogen separates with corresponding alkali liquor,
Alkali liquor from oxygen separator 6, hydrogen separator 5 bottom through alkali solution cooler 4 cool down after, turn again to NaOH solution circulating pump 3 import department,
Complete a circulation of alkali liquor.When requiring supplementation with the water of electrolysis, the water supplement port moisturizing of hydrogen scrubber 7 can be passed through,
On the one hand fill into is deionized water, can be clean by flush of hydrogen gas so that it is in the drop of alkali or the granule of precipitation can be by clearly
Washing in entrance water, and flow into hydrogen separator 5 from overfall, enter system circulation, it additionally aids the alkali liquor in hydrogen separator 5
Concentration reduces, and carries the probability of alkali liquor secretly, can be further ensured that the purity of hydrogen manufacturing, reduce pipeline when reducing Hydrogen Separation further
Corrosion.
Oxygen can directly empty after oxygen separator 6 separates, and certainly, is also not excluded for be collected there to be other modes again
Utilize, therefore, the pipeline of emptying can arbitrarily connect other collection devices.
After hydrogen is separated in hydrogen separator 5, enter in hydrogen scrubber 7 and be washed, after washes clean containing saturated
The hydrogen of steam enters in moisture trap 10 through three-way valve 1 and separates further, and the water bottom moisture trap 10 can be through
Blowoff valve 1, hydrogen drain water seal mechanism 18 outwards discharge；Hydrogen after separation enters drying system and is dried.
The process being dried can as shown in fig. 1, and the arrow in figure represents hydrogen traffic direction, and in figure, hydrogen is through three-way valve
2 15, during three-way valve 3 16 enters the interior tower of drying tower A11, after heater via auxiliary heating, then through molecular sieve, by molecular sieve
In moisture take away so that molecular sieve drying regenerate, then the hydrogen with water vapour cools down through re-generatively cooled device 12 so that it is
Temperature reduces, and absolute humidity reduces, and water recovery also flows into bottom re-generatively cooled device 12, can be through blowoff valve 2 22 row of bottom
Putting, low temperature hydrogen after cooling enters in the drying tower B13 being dried, and is introduced into drying tower B13, absorbs the most residual through molecular sieve
The moisture stayed, after making the purity of hydrogen improve further, enters in hydrogen-holder after piping filter 14 and stores.This is worked
Journey is drying tower A11 regeneration, meanwhile, the operating mode that drying tower B13 is dried；Crossover tee valve 3 16 and three-way valve four can be passed through
17 so that drying tower B13 regenerates, and drying tower A11 is dried simultaneously；Above-mentioned being dried can switch between regeneration regime at any time, makes
Obtaining this device to may utilize hydrogen self-energy and be dried and regenerate, heater is used for assisting heating, in regenerative process, hydrogen from
The heat of band can also directly take away the moisture of molecular sieve so that it is regeneration, and auxiliary adds thermal after-effect fruit and more preferably cuts temperature-controllable；This work
Make process it can be seen that the arrangement achieves and produce continuously under the operating mode that hydrogen is not parking.This system is not precluded from obtained
Hydrogen directly can use without storage, but as enforceable system, is also required to pressure regulation, tune even if can directly use
Temperature, apparatus for temporary storage is indispensable, and this apparatus for temporary storage is also a kind of form of hydrogen-holder.
Also having cooling water system in this device, it is mainly used in oxygen separator 6, hydrogen separator 5, alkali solution cooler 4, regeneration
The cooling of cooler 12.
Embodiment 2
One utilizes said apparatus electrolytic hydrogen production method, and it is using KOH alkali liquor as electrolyte, alkali in the alkali liquor in electrolysis bath 1
Mass percentage concentration is 25%, and the operating temperature of electrolysis bath 1 is 85 ~ 90 DEG C, rated current 900A, voltage 48V；Electrolyte adds
Enter to have the V of mass concentration 0.2%2O5。
Embodiment 3
Another utilizes said apparatus electrolytic hydrogen production method, and it is using KOH alkali liquor as electrolyte, alkali in the alkali liquor in electrolysis bath 1
Mass percentage concentration be 30%, the operating temperature of electrolysis bath 1 is 90 DEG C, rated current 950A, voltage 55V；Electrolyte adds
There is the V of mass concentration 0.3%2O5。
Embodiment 4
The third utilizes said apparatus electrolytic hydrogen production method, and it is using NaOH alkali liquor as electrolyte, alkali in the alkali liquor in electrolysis bath 1
Mass percentage concentration be 25 ~ 30%, the operating temperature of electrolysis bath 1 is 85 ~ 90 DEG C, rated current 900 ~ 950A, voltage 48 ~
55V；Electrolyte there was added the V of mass concentration 0.2 ~ 0.3%2O5。
Embodiment 5
4th kind utilizes said apparatus electrolytic hydrogen production method, and it is using NaOH alkali liquor as electrolyte, alkali in the alkali liquor in electrolysis bath 1
Mass percentage concentration be 25%, the operating temperature of electrolysis bath 1 is 85 ~ 90 DEG C, rated current 900A, voltage 50V；In electrolyte
There was added the V2O5 of mass concentration 0.25%.
The invention is not limited in above-described embodiment, on the basis of technical scheme disclosed by the invention, the skill of this area
Art personnel are according to disclosed technology contents, it is not necessary to some of which technical characteristic just can be made one by performing creative labour
A little replacements and deformation, these are replaced and deformation is the most within the scope of the present invention.Can appoint as required on corresponding pipeline
Meaning arranges stop valve, check valve, sampling valve etc., it is also possible to arbitrarily increase piezometer, thermometer etc., it is also possible in position set
Put three-way valve and wherein will empty or burn by a road connection air, in order to processing impure gas.
Claims (9)
1. an aqueous slkali electrolysis hydrogen production device, including DC source, electrolysis bath, hydrogen separator and oxygen separator, DC source
Positive source and negative pole be respectively turned on positive plate and the minus plate of electrolysis bath, it is characterised in that: the bottom of electrolysis bath is provided with alkali
Liquid inlet；The circulation fluid import of oxygen separator, the gaseous phase outlet warp at oxygen separator top are connected in the top, anode region of electrolysis bath
Air connected by valve；The circulation fluid import of hydrogen separator, the gaseous phase outlet at hydrogen separator top are connected in the top, cathode chamber of electrolysis bath
Below the import being connected to hydrogen scrubber the overfall extending in hydrogen scrubber, the outlet at hydrogen scrubber top is even
Connecing the import of three-way valve one, a way outlet of three-way valve one connects air through silk screen flame arrester, another way outlet of three-way valve one
Connect the import of moisture trap；Being respectively equipped with circulation fluid outlet bottom hydrogen separator and oxygen separator, described circulation fluid exports
Alkali liquor inlet is connected with alkali liquor filter successively through alkali solution cooler, NaOH solution circulating pump；The gas outlet of described moisture trap
Being connected to drying system through three-way valve two, the outlet of drying system is connected to hydrogen-holder through piping filter；Described hydrogen separates
It is respectively equipped with water-cooled body in device and oxygen separator；The bottom of moisture trap is connected to hydrogen drain water seal mechanism through valve；
Described hydrogen scrubber is provided with water supplement port, and the overfall of hydrogen scrubber is connected to hydrogen separator.
A kind of aqueous slkali electrolysis hydrogen production device the most according to claim 1, it is characterised in that: described drying system includes doing
Dry tower A, drying tower B and re-generatively cooled device, described drying tower A, drying tower have identical internal structure, include respectively coaxially setting
Wai Ta and Nei Ta put, is provided with molecular sieve between inner tower and outside tower, interior tower bottom is connected with outer tower, and Nei Ta center is provided with heating
Device, Nei Ta top is provided with interior tower air inlet/outlet, and Wai Ta top is provided with outer tower air inlet/outlet；Described re-generatively cooled device includes can be mutual
Two gas phase mouths changed, also include the import and export cooling down water, and the sewage draining exit that inner bottom part is arranged, and sewage draining exit is connected to hydrogen through valve
Gas drain water seal mechanism；The import of three-way valve three is connected on outlet one tunnel of three-way valve two, and another road is connected on re-generatively cooled device
Arbitrary gas phase mouth, three-way valve three two-way outlet one tunnel is connected to the interior tower air inlet/outlet of drying tower A, and another road is connected to be dried
The interior tower air inlet/outlet of tower B；The interior tower air inlet/outlet of drying tower A and drying tower B also connects described drying system through three-way valve four
Outlet；The outer tower air inlet/outlet of drying tower A is connected with a gas phase mouth of re-generatively cooled device, the outer tower turnover gas of drying tower B
Mouth is connected with another gas phase mouth of re-generatively cooled device.
A kind of aqueous slkali electrolysis hydrogen production device the most according to claim 1 and 2, it is characterised in that: described electrolysis bath is pressure
Filter formula dipolar configuration, middle plate is positive pole, and two ends pole plate is negative pole, and feed tube is arranged on electrolysis bath bottom, cathode chamber upper
Portion is provided with the outlet of hydrogen liquid, and top, anode region is provided with the outlet of oxygen liquid.
A kind of aqueous slkali electrolysis hydrogen production device the most according to claim 3, it is characterised in that: hydrogen scrubber, oxygen separating
Control pressure and the sensor of liquid level it is respectively provided with on device and hydrogen separator.
A kind of aqueous slkali electrolysis hydrogen production device the most according to claim 3, it is characterised in that: the gas of described hydrogen scrubber
Bypass connection on the pipeline exported mutually and have oxygen analyzer in online hydrogen；On the pipeline of the gaseous phase outlet of described oxygen separator, bypass is even
It is connected to hydrogen analyzer in online oxygen.
A kind of aqueous slkali electrolysis hydrogen production device the most according to claim 3, it is characterised in that: described moisture trap and again
The valve being connected with hydrogen drain water seal mechanism bottom raw cooler is automatic blowdown valve.
A kind of aqueous slkali electrolysis hydrogen production device the most according to claim 3, it is characterised in that: described three-way valve is pneumatic three
Pass ball valve.
8. an aqueous slkali electrolytic hydrogen production method, it is characterised in that utilize the device of claim 1-8 any one to carry out hydrogen manufacturing,
Using KOH or NaOH alkali liquor as electrolyte, in the alkali liquor in electrolysis bath, the mass percentage concentration of alkali is 25 ~ 30%, the work of electrolysis bath
It is 85 ~ 90 DEG C as temperature, rated current 900 ~ 950A, voltage 48 ~ 55V.
A kind of aqueous slkali electrolytic hydrogen production method, it is characterised in that there was added matter in described electrolyte
The V of amount concentration 0.2 ~ 0.3%2O5。
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