CN104611719B - A kind of pure oxygen air source generator for synthesizing ozone - Google Patents

A kind of pure oxygen air source generator for synthesizing ozone Download PDF

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CN104611719B
CN104611719B CN201310542199.6A CN201310542199A CN104611719B CN 104611719 B CN104611719 B CN 104611719B CN 201310542199 A CN201310542199 A CN 201310542199A CN 104611719 B CN104611719 B CN 104611719B
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hydrogen
power supply
unit
supply unit
fuel cell
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CN104611719A (en
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朱晓兵
朱爱民
刘景林
李小松
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Dalian University of Technology
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/133Renewable energy sources, e.g. sunlight

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Abstract

A kind of pure oxygen air source generator for synthesizing ozone, uses electrochemical method that the pure oxygen feed unit of raw material, including at least two electrolysis water units and each self-corresponding power supply unit of each electrolysis water unit are provided for ozone generator;Power supply unit includes that at least one is used for Hydrogen Energy recovery power supply unit and an external power supply unit;It is independently connected on each power supply unit electrolysis water unit circuit only corresponding respectively;The hydrogen that all electrolysis water units are produced is delivered to hydrogen fuel cell as fuel;The feed(raw material)inlet that the oxygen that electrolysis water unit is produced is delivered to ozone generator produces ozone;Hydrogen Energy reclaims the negative pole of the hydrogen fuel cell of power supply unit, side of the positive electrode difference inputting hydrogen and air, and the hydrogen that it is input into is connected by pipeline with the cathode hydrogen air chamber of electrolysis water unit, and the discharge gas of its side of the positive electrode is emptied after gas-liquid separation.The present invention is indoors, outdoor and field place is equal can prepare high-purity oxygen for ozone generator by air low cost, steady and continuous.

Description

A kind of pure oxygen air source generator for synthesizing ozone
Technical field
The present invention relates to a kind of pure oxygen air source generator, especially a kind of pure oxygen air source generator for synthesizing ozone.
Background technology
Ozone is a kind of unstable gas of strong oxidizing property, easily decomposes and cannot store, therefore scene is needed when actually used Produce, i.e., with system with.The synthesis of ozone, usually with oxygen-containing gas(Such as pure oxygen and air)It is source of the gas, by plasma (Dielectric barrier discharge or corona discharge are produced)Or oxygen molecule is dissociated into oxygen atom by ultraviolet light, subsequent oxygen atom leads to oxygen molecule Cross three-body collision reaction generation ozone.Synthesize the commercial methods of ozone, mainly plasma method, its is most widely used. Because the raw material for synthesizing ozone is that power consumption and concentration influence of the oxygen content on ozone is notable in oxygen, therefore source of the gas.It is with air Ozone power consumption during source of the gas, more than 2 times when at least with pure oxygen as source of the gas.Ozone concentration during with air as source of the gas can only reach To 3-6wt%, during far below with pure oxygen as source of the gas(Up to 15wt%).In addition, during plasma method synthesis ozone, if with sky Gas or oxygen-enriched air are source of the gas, inevitably produce oxynitrides(NOx)Deng harmful and corrosive gas;If being with pure oxygen Source of the gas, only has ozone and oxygen in its gas, composition is pure, has no toxic side effect.
At present, the pure oxygen air source generator of ozone is synthesized, it is main to use molecular sieve pressure-variable adsorption(PSA)Technology.It is this pure Oxygen source generator, need to pre-process moisture and carbon dioxide in removing raw air, and adsorbent bed is more, and technological process is complicated, body Product is huge, and reliability is poor, and the purity of acquisition oxygen is not high, and its oxygen concentration only up to reach 95%.With solid electricity During solution matter water electrolysis technology is the electrolysis water of representative, the anode and negative electrode of electrolytic cell can acquisition pure oxygens and pure simultaneously respectively Hydrogen, its purity may be up to more than 99.99%.Solid electrolyte cell operation current density is high(1-3A/cm2), the safe and reliable longevity Life length(Electrolyte is not required to, pure water is only needed), energy efficiency is up to more than 85%, and electrolyser construction is compact, small volume, lightweight.But The power consumption that solid electrolyte electrolysis water prepares pure oxygen is higher, and every cubic metre of oxygen need to consume 8-10 degree electricity.In addition, cathode of electrolytic tank If the hydrogen of generation is not used, Hydrogen Energy is not only wasted, and there is inflammable and explosive potential safety hazard.
For the problem of above-mentioned hydrogen, Chinese invention patent 02114162.2 and 201110105892.8 is by electrolytic cell and hydrogen Fuel cell is combined.The hydrogen that electrolytic cell is produced, flows into hydrogen fuel cell and generates electricity.Chinese invention patent 02114162.2, by hydrogen Fuel cell with the direct current obtained by external 220V AC rectifications as dual power supply, while being powered to electrolytic cell.In double electricity In source circuit, if the voltage of external power supply is higher than the operating voltage of fuel cell, fuel cell is then damaged by reverse charge.And because The factor such as unstability of electrolytic cell load, thus be difficult to ensure that in actual use the two-supply circuit can it is reliable and stable and High-efficiency operation.Further, since often the electric energy that hydrogen fuel cell is reclaimed, only about account for the 30-40% that electrolytic cell consumes electric energy, i.e., Cubic meter oxygen still needs to consumption 5-7 degree electricity, and the operating cost for preparing pure oxygen is still higher;Furthermore, the patent is only applicable to can The place of 220V alternating currents is provided.Chinese invention patent 201110105892.8 limits to solve two-supply circuit and field of employment Property problem, powered to electrolytic cell using secondary cell, hydrogen fuel cell in the way of floating charge give secondary cell charge.But due to Restricting for water consumption problem higher is limited and is electrolysed by secondary power supply capacity, therefore the limited electric energy of secondary cell storage is being transported To quickly be consumed during row, operation is necessarily required to external power after a period of time charge can just rework.The patent system oxygen is filled Put, if as the pure oxygen air source generator of synthesis ozone, can only low discharge and short time interval generation pure oxygen.
The content of the invention
The present invention is in order to solve the above-mentioned technical problem existing for prior art, there is provided a kind of pure oxygen source of the gas of synthesis ozone Generator, indoors, outdoor or field place can for ozone generator by air it is inexpensive, prepare high-purity to steady and continuous Oxygen.
Technical solution of the invention is:A kind of pure oxygen air source generator for synthesizing ozone, using electrochemical method point Pure oxygen is prepared from air, especially fuel cell and electrolysis water technology is combined and is prepared pure oxygen, for ozone generator provides pure oxygen Feed unit.
The pure oxygen feed unit includes at least two electrolysis water units and each self-corresponding power supply of each electrolysis water unit Unit;
Power supply unit includes that at least one is used for Hydrogen Energy recovery power supply unit and an external power supply unit, and Hydrogen Energy is reclaimed and supplied Electric unit uses hydrogen fuel cell, external power supply unit to select solar cell, DMFC, external communication power network At least one in power supply;
Described electrolysis water unit is water electrolytic cell;
It is independently connected on each power supply unit electrolysis water unit circuit only corresponding respectively;
The hydrogen that all electrolysis water units are produced is converged by Hydrogen Line, and hydrogen fuel cell is delivered to together as combustion Material;The oxygen that each electrolysis water unit is produced is converged by oxygen channel and flows into drier, is delivered to ozone hair after drying together The raw material oxygen intake of raw device produces ozone;
Hydrogen Energy reclaims the negative pole of the hydrogen fuel cell of power supply unit, side of the positive electrode difference inputting hydrogen and air, and it is input into Hydrogen be connected with the cathode hydrogen air chamber of electrolysis water unit by pipeline, the discharge gas of side of the positive electrode is emptied after gas-liquid separation.
Described electrolysis water unit, its anode and negative electrode are separated by electrolyte membrance, respectively with the positive pole of power supply unit and Negative pole is connected.Electrolyte membrance can be acid and/or alkaline polymer electrolyte membrane, or acid, the electricity of alkali steeping porous septum Solution matter barrier film.In acid system or alkaline system, proton hydrate or hydroxide ion pass through electrolyte under internal electric field effect Barrier film migrates the generation for having oxygen to cathode side generation hydrogen, anode-side.Electrolyte membrance can be with acid perfluorinated sulfonic acid Resin, sulfonated polyether-ether-ketone or SPSF are the polymer electrolyte and/or the quaternized polysulfones with alkalescence of representative (Shanfu Lu,et al.PNAS2008,105,20611;Junfeng Zhou,etal.Journal of Power Sources2009,190,285) be representative polymer electrolyte.The catalytic active component of electrocatalyst for cathode is tool There is the Pt of evolving hydrogen reaction function black or Pt/C, catalytic active component is 0.01-1mg/cm in the load amount of membrane electrode2;Anode electricity is urged Agent catalytic active component is by one or more the metal or its oxygen in the transition metal of periodic table of elements group VIII Compound constitutes (Chinese patent CN101008087B), and catalytic active component is 0.01-4mg/cm in the load amount of membrane electrode2
Described hydrogen fuel cell power supply unit, its positive pole and negative pole are separated to form two air chambers by electrolyte membrance.It is negative Pole side air chamber is connected with Hydrogen Line, flows into the hydrogen that electrolysis water unit is produced;Side of the positive electrode air chamber is by fan or air pump by air Feeding, the oxygen needed for obtaining hydrogen fuel cell.Side of the positive electrode air chamber discharge gas is emptied (reference can be made to Chinese patent after gas-liquid separation Application:Zhu Xiaobing, Zhu Weikun, Zhu Aimin, a kind of Liu Jinglin " electrochemistry side by preparing pure oxygen and Poor oxygen gas containing oxygen gas mixture Method ").Side of the positive electrode produce water with discharge gas flow into gas-liquid separator, after gas-liquid separation water be back to electrolytic cell negative electrode and/or Anode, recycles.If disregarding the loss of the water that volatilization or evaporation factor are brought, water need not be added additionally.This is not only The weight of device is alleviated, the cost of pure water is used when even more greatly reducing operation.Electrolyte membrance can be it is acid and/or Alkaline polymer electrolyte membrane, or acid, the electrolyte membrance of alkali steeping porous septum.Electrolyte membrance can be with the complete of acidity Perfluorosulfonic acid resin, sulfonated polyether-ether-ketone or SPSF are the polymer electrolyte of representative and/or are gathered with the quaternized of alkalescence Sulfone (Shanfu Lu, et al.PNAS2008,105,20611;Junfeng Zhou,etal.Journal of Power Sources2009,190,285) be representative polymer electrolyte.The catalytic active component of negative pole elctro-catalyst is tool There is the Pt of hydroxide reaction function black or Pt/C, catalytic active component is 0.01-1mg/cm in the load amount of membrane electrode2;Positive pole electricity Catalyst activity component by one or more the metal in the transition metal of periodic table of elements group VIII or its Oxide constitutes (Chinese patent CN101008087B), and catalytic active component is 0.01-4mg/cm in the load amount of membrane electrode2
Described circuit connection, the negative pole of the negative electrode of its electrolytic cell, anode and fuel cell, positive pole are connected.
Described master unit is made up of fuel cell and electrolytic cell, described auxiliary unit by hydrogen make-up function electrolysis Pond constitutes.There was only gas circuit connection between described master unit and auxiliary unit, there is no circuit to connect.The cathodic hydrogen gas of electrolytic cell Road is connected with fuel cell anode hydrogen gas circuit.The oxygen of the anode discharge of electrolytic cell after dried process, send out by input to ozone Raw device unstripped gas entrance, produces ozone output.
Described DMFC power supply unit, negative pole is flowed into using methyl alcohol as fuel, is with oxygen-containing gas Oxidant flows into positive pole, and generate electricity supply electrolytic cell.
Described solar cell for supplying power unit, directly using the solar energy with voltage needed for water electrolytic cell and power match Battery commercially produced product, generate electricity supply electrolytic cell.
Described AC network power supply unit, directly using the AC network with voltage needed for water electrolytic cell and power match The dc source commercially produced product of power supply, generate electricity supply electrolytic cell.
Place prepares pure oxygen for ozone generator indoors, and because AC network is easy to connect, preferred external power supply is single Unit is dc source simultaneously using solar cell and external AC net.This can both save electric energy, reduce operating cost, and The uncontrollable shortcoming of solar energy can be made up.
In outdoor and field place for ozone generator prepares pure oxygen, because AC network is inconvenient or is difficult to connect, preferably External power supply unit be simultaneously use solar cell and DMFC.This had both given full play to outdoor and field Obtain solar energy advantage, can make up again solar energy it is uncontrollable and inconvenient or be difficult to connection AC network shortcoming.
A kind of pure oxygen air source generator of synthesis ozone that the present invention is provided, is prepared pure using electrochemical method separation air Oxygen, fuel cell and electrolysis water technology are especially combined prepare pure oxygen.Using at least two electrolysis water units and each of which Power supply unit, stable and reliable operation;Hydrogen Energy reclaims the Hydrogen Energy that power supply unit has recycled electrolysis water generation, has saved the energy And solve the safety problem of hydrogen.It is employed as while solar cell is with AC network or with DMFC External power supply unit, not reduce further power consumption merely with solar energy, and indoors, outdoor can be smelly with field place Oxygen Generator continuous-stable prepares pure oxygen.
The present invention is as follows for the advantage that ozone generator prepares the method for pure oxygen:
1. the method that traditional solid electrolyte electrolysis water prepares pure oxygen, its power consumption is higher, and every cubic metre of oxygen needs consumption 8-10 degree electricity.If in addition, the hydrogen that cathode of electrolytic tank is produced is not used, not only wasting Hydrogen Energy, and exist inflammable Explosive potential safety hazard.Relative to conventional method, this patent method can recycle hydrogen hair using electrolysis water oxygen simultaneously Electricity supply electrolytic cell produces more oxygen, and energy efficiency is higher, and electrolysis aquatic products hydrogen and fuel cell consume hydrogen, nothing in system Net hydrogen generation, system uses safer.
2. Chinese invention patent 02114162.2, by hydrogen fuel cell and the direct current obtained by external 220V AC rectifications Electricity as dual power supply, while being powered to electrolytic cell.In two-supply circuit, if the voltage of external power supply is higher than the work of fuel cell Make voltage, fuel cell is then damaged by reverse charge.The factors such as the unstability for being loaded by electrolytic cell again, therefore actually used In be difficult to ensure that the two-supply circuit being capable of reliable and stable and high-efficiency operation.Further, since the electric energy that hydrogen fuel cell is reclaimed, Only about account for the 30-40% that electrolytic cell consumes electric energy, i.e., every cubic metre oxygen still needs to consumption 5-7 degree electricity, prepare the operation of pure oxygen into This is still higher;Furthermore, the patent is only applicable to provide the place of 220V alternating currents.Relative to Chinese patent 02114162.2, the method for this patent, using independent on each power supply unit electrolysis water unit circuit only corresponding respectively Connection.External power supply unit is from solar cell, DMFC, these three batteries of AC network or power supply It is at least one.This patent method is suitable indoors, outdoor can continuously and stably for ozone generator provides pure with field place Oxygen.
3. Chinese invention patent 201110105892.8 is adopted to solve the problems, such as two-supply circuit and field of employment limitation Powered to electrolytic cell with secondary cell, hydrogen fuel cell is charged in the way of floating charge to secondary cell.But due to by secondary power supply The limitation of capacity and the restriction of electrolysis water consumption problem higher, therefore the limited electric energy of secondary cell storage in the process of running will Quick consumption, operation is necessarily required to external power after a period of time charge can just rework.The patent oxygenerator is only suitable for small Flow and short time interval are used.This patent method, volume is produced using external power supply unit with auxiliary unit associated with electrolytic cell Outer hydrogen come supplement fuel cell for its generate electricity, to make up the energy loss of master unit associated with fuel cell and electrolytic cell, Rather than by secondary cell come electric energy supplement making up energy loss.Chinese invention patent 201110105892.8 receives secondary cell Store energy capacity limitation, there is provided be limited capacity or batch (-type) method for producing oxygen through.This patent be adapted to indoors, it is outdoor with Field place energy continuous-stable provides pure oxygen for ozone generator.
Brief description of the drawings
The gas circuit annexation of described Fig. 1 is as follows:Master unit is made up of fuel cell FC and electrolytic cell WE-1, and auxiliary is single Unit be made up of the electrolytic cell WE-2 and external power supply unit of hydrogen make-up function, its external power supply unit using solar cell, At least one of DMFC, dc source of AC network.Between described master unit and auxiliary unit only Gas circuit is connected, and does not have circuit to connect.The cathodic hydrogen gas circuit of electrolytic cell WE-1 and WE-2 and fuel cell FC negative pole hydrogen gas circuits Connection.The exhaust of the anode-side of electrolytic cell WE-1 and WE-2 obtains pure oxygen gas after drier.Pure oxygen gas subsequently input to Ozone generator feed(raw material)inlet, produces ozone.The side of the positive electrode input air of fuel cell FC.The side of the positive electrode exhaust of fuel cell FC Mouth is connected with the gas-liquid separator of water storage unit, and discharge gas is directly emptied after gas-liquid separation, and water is back to master unit electrolytic cell The anode-side of WE-1 and auxiliary unit electrolytic cell WE-2, recycles.Due to the inevitable factor of water evaporation, toward water storage list The separator of unit adds suitable quantity of water to maintain the material balance of the water of whole system.
The circuit connecting relation of described Fig. 1 is as follows:Negative pole, the positive pole of fuel cell FC respectively with the moon of electrolytic cell WE-1 Pole, anode connection.Negative pole, the positive pole of the dc source of external power supply unit negative pole respectively with electrolytic cell WE-2, positive pole are connected.
A kind of flow charts for using electrochemical method that pure oxygen is provided for ozone generator of Fig. 1.FC, WE-1 are respectively in figure The fuel cell FC of master unit, electrolytic cell WE-1;WE-2 is the electrolytic cell WE-2 of auxiliary unit;Water-gas Separator It is the gas-liquid separator of water storage unit;Solar Cell and/or DMFC and/or DC power are the external of auxiliary unit At least one in the solar cell of power supply, DMFC, these three batteries of AC network or power supply;03- Generator is ozone generator;The AIR and H of system input2O is respectively the air and water of input, the Vent and O of output3Point It is not air-discharging and ozone.
By taking air as an example, the external power supply unit of auxiliary unit is connected generation hydrogen with electrolytic cell WE-2 to Fig. 1, supplies main list First fuel cell FC makes its continuous normal operation to start whole system and make up the energy consumption of master unit.Its external power supply unit can From at least one in solar cell, DMFC, these three batteries of AC network or power supply.Master unit Fuel cell FC negative poles and positive pole separately flow into hydrogen and air, and generate electricity supply master unit electrolytic cell WE-1, by being electrolysed aquatic products Raw hydrogen circulates supply fuel cell again, forms hydrogen and recycles.
The eluting gas of the side of the positive electrode of fuel cell FC after gas-liquid separator by emptying.The sun of electrolytic cell WE-1, WE-2 The eluting gas of pole side is input into ozone generator 0 by drier3- Generator feed(raw material)inlets, produce ozone.
The water that fuel cell FC side of the positive electrode is produced flows into gas-liquid separator with discharge gas, and water is back to electrolysis after gas-liquid separation The anode-side in pond, recycles.If disregarding the loss of the water that volatilization or evaporation factor are brought, water need not be added additionally. In view of the loss that inevitable gas circuit water evaporation brings, water can be suitably supplemented toward water storage unit.
The thus input of whole system is supplied with the air of the fuel cell FC of master unit, supplements water evaporation loss Water;Output is ozone generator 03Ozone, the fuel cell FC side of the positive electrode eluting gas that-Generator is produced are through gas-liquid separation The gas for emptying afterwards.
Specific embodiment
Embodiment 1
Take Nafion212 films(EW=1052g/molSO3H)40cm2, add the METHYLPYRROLIDONE and 10ml of 20ml Isopropanol heating for dissolving perfluorinated sulfonic acid solution is obtained.By perfluorinated sulfonic acid solution curtain coating on flat board, heated 10 hours at 70 DEG C, It is warming up to 77 DEG C again to heat 12 hours, after solvent volatilizees substantially, 130 DEG C are heat-treated 1 hour into basilar memebrane in vacuum drying oven, system Standby thickness is 18 μm of polymer electrolyte membrane for fuel cell and 50 μm of solid electrolyte water electrolytic cell films.
Using SGL carbon papers, ptfe emulsion, XC-72 carbon dusts, 5%(E.I.Du Pont Company)Solution and 20% Pt/C catalyst preparation electrodes, whereinResin is 0.8 with the mass ratio of C.Negative pole Pt loads amount is 0.3mg/cm2, positive pole Pt loads amount is 0.5mg/cm2.Compacting 5cm2The operating condition of the three-in-one hydraulic presses of MEA be, 160 DEG C, minute-pressure precompressed 1 minute, Pressure to 2MPa is improved again, and hot pressing 2 minutes, cooling obtains final product fuel cell MEA.
Using SGL carbon papers, ptfe emulsion, XC-72 carbon dusts, 5%(E.I.Du Pont Company EW=1100g/mol- SO3H)Solution and negative electrode 20%Pt/C catalyst, anode are with Pt is black, IrO2Catalyst prepares electrode respectively.Negative electrodeResin is 0.8 with the mass ratio of C.The Pt of anode is black, IrO2Powder and Nafion resins(EW=1100g/mol-SO3H) With mass ratio be 5:1.Catalyst,Resin solution adds isopropanol to be made into anode after 12 hours through ultrasonic disperse and urges Change the standby slurry of layer.Negative electrode Pt loads amount is 0.3mg/cm2, anode Pt loads amount is 4mg/cm2.Compacting 5cm2The three-in-one oil of MEA The operating condition of press is, 160 DEG C, minute-pressure precompressed 1 minute, then improves pressure to 2MPa, hot pressing 2 minutes, and cooling obtains final product solid Electrolyte water electrolysis pond MEA.
The evaluating of fuel cell is as follows:The H of dry state2/AIR;Operating pressure normal pressure;30~80 DEG C of operation temperature; mPt,MEA=0.7mg/cm2;Single pond test;Hydrogen is recycled, and air velocity is 100ml/min;Effective area is 5cm2
The evaluating of electrolytic cell is as follows:Water electrolytic cell temperature is 45 DEG C, normal pressure, water-carrying capacity 15ml/min, single pond test, Effective area is 5cm2.Powered using MPS30 DC current stabilized power supplies.
Whole system flowage structure as shown in figure 1, after stable operation 2 hours, the Current Voltage output data such as table 1 of measure It is shown.Whole system air is input into 100ml/min, while supplementing water 10ml/ days;It is input into the pure oxygen of ozone generator 20ml/min, it is the ozone of 14wt% to produce concentration.
The electrochemistry experiment data of the embodiment 1 of table 1.
The method that the present invention prepares pure oxygen for ozone generator, using at least two electrolysis water units and their own confession Electric unit, continuous stable and reliable operation;Hydrogen Energy reclaims the Hydrogen Energy that power supply unit has recycled electrolysis water generation, has saved the energy And solve the safety problem of hydrogen;
External power supply unit is employed as while solar cell is with AC network or with DMFC, no Reduce further power consumption merely with solar energy, and indoors, it is outdoor can be that ozone generator is continuously steady with field place Surely pure oxygen is prepared.
For the electrolytic cell that the operation energy consumption solved the problems, such as between fuel cell and electrolytic cell, the present invention pass through auxiliary unit To the negative side of master unit fuel cell, this hydrogen make-up passes through fuel cell power generation to the hydrogen make of cathode side, to make up master Operation energy loss between the fuel cell and electrolytic cell of unit.And Chinese invention patent 02114162.2 is electric by hydrogen fuel Pond with the direct current obtained by external 220V AC rectifications as dual power supply, while powering to make up above-mentioned energy to electrolytic cell , there are two (1) if the operating voltage of the voltage higher than fuel cell of external power supply, fuel cell is then by reverse charge in consumption Damage;(2) factors such as the unstability and because of electrolytic cell load, therefore the two-supply circuit energy is difficult to ensure that in actual use Enough reliable and stable and high-efficiency operations.Therefore this patent is made up between fuel cell and electrolytic cell by the method for hydrogen make-up Energy loss method, avoid making fuel cell reverse charge with two advantages (1) and damage;(2) the fuel electricity of master unit As single power supply for electrolytic cell is powered, it has reliable and stable and high-efficiency operation circuit in pond.

Claims (8)

1. it is a kind of synthesize ozone pure oxygen air source generator, it is characterised in that electrochemical method is used, for ozone generator is provided The pure oxygen feed unit of raw material,
The pure oxygen feed unit includes at least two electrolysis water units and each self-corresponding power supply unit of each electrolysis water unit;
Power supply unit includes that at least one is used for Hydrogen Energy recovery power supply unit and an external power supply unit, and it is single that Hydrogen Energy reclaims power supply Unit uses hydrogen fuel cell, external power supply unit to select solar cell, DMFC, external communication electric network source In at least one;
Described electrolysis water unit is water electrolytic cell;
It is independently connected on each power supply unit electrolysis water unit circuit only corresponding respectively;
The hydrogen that all electrolysis water units are produced is converged by Hydrogen Line, and hydrogen fuel cell is delivered to together as fuel;Often The oxygen that individual electrolysis water unit is produced is converged by oxygen channel and flows into drier, and ozone generator is delivered to together after drying Raw material oxygen intake produces ozone;
Hydrogen Energy reclaims the negative pole of the hydrogen fuel cell of power supply unit, side of the positive electrode difference inputting hydrogen and air, its hydrogen being input into Gas is connected by pipeline with the cathode hydrogen air chamber of electrolysis water unit, and the discharge gas of side of the positive electrode is emptied after gas-liquid separation;
Master unit is constituted by least one hydrogen fuel cell and water electrolytic cell;
By at least one water electrolytic cell as auxiliary unit, electrically connected with external power supply unit, for being provided for hydrogen fuel cell Hydrogen make-up;
Described master unit, auxiliary unit only has therebetween gas circuit connection, does not have circuit to connect;The cathodic hydrogen of water electrolytic cell Gas circuit is connected with fuel cell anode hydrogen gas circuit.
2. according to the pure oxygen air source generator of the synthesis ozone described in claim 1, it is characterised in that:
The anode and negative electrode of described electrolysis water unit are separated by electrolyte membrance, respectively with the positive pole and negative pole phase of power supply unit Even.
3. according to the pure oxygen air source generator of the synthesis ozone described in claim 1, it is characterised in that:
Described hydrogen fuel cell power supply unit, its positive pole and negative pole are separated to form two air chambers by electrolyte membrance;Negative side Air chamber is connected with Hydrogen Line, flows into the hydrogen that electrolysis water unit is produced;Side of the positive electrode air chamber is sent into air by fan or air pump, Oxygen needed for obtaining hydrogen fuel cell;Side of the positive electrode air chamber discharge gas is emptied after gas-liquid separation.
4. according to the pure oxygen air source generator of the synthesis ozone described in claim 1 or 3, it is characterised in that:
The water that hydrogen fuel cell side of the positive electrode is produced flows into gas-liquid separator with discharge gas, water backflow supply electrolytic cell after gas-liquid separation Negative electrode and/or anode, recycle.
5. according to the pure oxygen air source generator of the synthesis ozone described in claim 1, it is characterised in that:
Described circuit connection, negative electrode, the anode of its electrolysis water unit electrolytic cell negative pole, positive pole phase respectively with hydrogen fuel cell Even.
6. according to the pure oxygen air source generator of the synthesis ozone described in claim 1, it is characterised in that:
Described DMFC power supply unit, negative pole is flowed into using methyl alcohol as fuel, is oxidation with oxygen-containing gas Agent flows into positive pole, and generate electricity supply water electrolytic cell;
Or, described solar cell for supplying power unit, directly using the solar energy with voltage needed for water electrolytic cell and power match Battery commercially produced product, generate electricity supply water electrolytic cell;
Or, described AC network power supply unit, directly using the AC network with voltage needed for water electrolytic cell and power match The dc source commercially produced product of power supply, generate electricity supply water electrolytic cell.
7. according to the pure oxygen air source generator of the synthesis ozone described in claim 1, it is characterised in that:
Preferred external power supply unit be solar cell with AC network or with DMFC while use.
8. according to the pure oxygen air source generator of the synthesis ozone described in claim 1, it is characterised in that:
Connected one to one on circuit between the hydrogen fuel cell and water electrolytic cell that constitute master unit.
CN201310542199.6A 2013-11-05 2013-11-05 A kind of pure oxygen air source generator for synthesizing ozone Active CN104611719B (en)

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