CN206878725U - Anti- electrodialysis heat generating device - Google Patents
Anti- electrodialysis heat generating device Download PDFInfo
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- CN206878725U CN206878725U CN201720526592.XU CN201720526592U CN206878725U CN 206878725 U CN206878725 U CN 206878725U CN 201720526592 U CN201720526592 U CN 201720526592U CN 206878725 U CN206878725 U CN 206878725U
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Abstract
The utility model discloses a kind of anti-electrodialysis heat generating device, the thermal source heated including pole room and to pole room, electrolyte solution is provided with pole room, pole room is divided into high concentration electric electrolyte solution room and low concentration electrolyte solution room by the penetrating film of ion selectivity, and inert electrode is inserted with respectively in two electrolyte solution rooms；Electrolyte solution is acid solution, aqueous slkali or salting liquid；In acid solution, discharge order of the anion in water is in OH‑Afterwards；In aqueous slkali, discharge order of the cation in water is in H+Afterwards；In salting liquid, discharge order of the anion in water is in OH‑Afterwards, and discharge order of the cation in water is in H+Afterwards.The device utilizes low-temperature industrial cogeneration, and with generating efficiency is high, heat energy can utilize that temperature range is big, sustainable, pollution-free, advantages of simple structure and simple.
Description
Technical field
The utility model belongs to technical field of power generation, more particularly to a kind of anti-electrodialysis heat generating device.
Background technology
Currently, China's using energy source remains that utilization ratio is low, deficiency in economic performance, big main of eco-environmental pressure
Problem.Low industrial heat energy utilization rate is the major reason for causing high energy consumption, and the industrial consumption energy in China at least 50% is in a variety of manners
Waste heat directly discarded, wherein waste heat recovery rate converts into the heat that about 900,000,000 tons of standard coal combustions are discharged, about up to 60%
The 1/4 of AND ENERGY RESOURCES CONSUMPTION IN CHINA total amount is accounted for, state's utilization rate of waste heat room for promotion is big still, and energy-saving potential is huge.
Anti- electrodialysis generation technology is that by amberplex both sides, energy potential difference directly converts one kind caused by concentration difference
Into the method for electric energy.A large amount of natural salt error energy be present in river entrance, extensively favored by research worker.The anti-electrodialysis of tradition
Generation technology using zwitterion selectively through film alternately installation and multigroup film is to the structure of superposition, with seawater as high concentration
Solution, river are generated electricity as low concentration solution, and it has the characteristics that：Need continuously to be fed past pretreatment
Seawater and river, and seawater and river pretreatment cost are high；Ion selectivity passes through film vulnerable to pollution.
Separately there is a kind of electricity-generating method based on anti-electrodialysis generation technology, be referred to as thermal-driven
Electrochemical generator (TDEG), anti-electrodialysis plant is combined by it with heat separator, from bicarbonate
Ammonium salt solution obtains the concentrated solution and weak solution needed for anti-electrodialysis generating as working solution, and by heat separator, reaches
The purpose of UTILIZATION OF VESIDUAL HEAT IN.But current this method still suffers from, and generating efficiency is low, heat energy can utilize that temperature range is limited, electricity generation system
The defects of complicated[
Therefore, it is necessary to develop it is a kind of can utilize heat energy power-generating, especially with low-temperature industrial cogeneration, and generating efficiency
High, heat energy can utilize big, sustainable, pollution-free, the simple in construction TRT of temperature range.
Utility model content
The technical problems to be solved in the utility model is overcome the deficiencies in the prior art, there is provided a kind of simple in construction, cost
It is relatively low, various low-grade heats can be made full use of to be converted into electric energy, can without sustainable supply electrolyte solution, solution concentration difference
Automatic maintenance, long lasting for work and the free of contamination anti-electrodialysis heat energy power-generating of film can be passed through to ion selectivity in thermal source
Device.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of anti-electrodialysis heat generating device, including pole room and the thermal source that is heated to pole room, set in the pole room
There is electrolyte solution, the pole room is divided into high concentration electric electrolyte solution room by the penetrating film of ion selectivity and low concentration is electrolysed
Inert electrode is inserted with respectively in matter solution room, the high concentration electric electrolyte solution room and low concentration electrolyte solution room；It is described
Electrolyte solution is acid solution, aqueous slkali or salting liquid；In the acid solution, discharge order of the anion in water is in OH-It
Afterwards；In the aqueous slkali, discharge order of the cation in water is in H+Afterwards；In the salting liquid, anion putting in water
Electric order is in OH-Afterwards, and discharge order of the cation in water is in H+Afterwards.
Above-mentioned anti-electrodialysis heat generating device, it is preferred that when the electrolyte solution is acid solution, the ion choosing
The penetrating film of selecting property is the penetrating film of cation selective.
Above-mentioned anti-electrodialysis heat generating device, it is preferred that the acid solution includes H2SO4Solution, HF solution or HNO3
Solution.
Above-mentioned anti-electrodialysis heat generating device, it is preferred that when the electrolyte solution is aqueous slkali, the ion choosing
The penetrating film of selecting property is the penetrating film of anion selectivity.
Above-mentioned anti-electrodialysis heat generating device, it is preferred that it is molten that aqueous slkali includes NaOH solution, KOH solution or LiOH
Liquid.
Above-mentioned anti-electrodialysis heat generating device, it is preferred that when the electrolyte solution is salting liquid, the ion choosing
The penetrating film of selecting property is the penetrating film of cation selective or the penetrating film of anion selectivity.
Above-mentioned anti-electrodialysis heat generating device, it is preferred that the salting liquid includes Na2SO4Solution, K2SO4Solution or
Li2SO4Solution.
Above-mentioned anti-electrodialysis heat generating device, it is preferred that the penetrating film of cation selective is cation exchange
Film or inorganic nano passage cation permselective film.
Above-mentioned anti-electrodialysis heat generating device, it is preferred that the penetrating film of anion selectivity is anion exchange
Film or inorganic nano passage anion selectivity pass through film.
Above-mentioned anti-electrodialysis heat generating device, it is preferred that the high concentration electric electrolyte solution room and low concentration electrolysis
Water filling port is equipped with matter solution room.
Above-mentioned anti-electrodialysis heat generating device, it is preferred that be additionally provided with the pole room for reducing ion selectivity
The indifferent electrolyte of penetrating film both sides permeable pressure head；In the high concentration electric electrolyte solution room and low concentration electrolyte solution room,
The concentration of indifferent electrolyte is equal.
Above-mentioned anti-electrodialysis heat generating device, it is preferred that the indifferent electrolyte meets following condition：
（1）Anion is in discharge in water order in OH-Afterwards, and cation discharge order is in H+Afterwards；
（2）Without produce electrical potential difference ion, not with the ionic reaction in electrolyte solution.
Above-mentioned anti-electrodialysis heat generating device, it is preferred that the indifferent electrolyte also meets following condition：
（3）The ion of ion jack per line with producing electrical potential difference is more than divalence or divalence.
Anti- electrodialysis heat generating device of the present utility model, it is the anti-electrodialysis plant of compartment type of monofilm two, its is basic
Principle is to be based on solution concentration difference membrane diffusion, and low-temperature heat source is converted into energy of position.The utility model includes four types：Sun from
Sub- acid solution type, cationic salts solution-type, anion aqueous slkali type and anion salt solution-type.
The electricity generating principle of the anti-electrodialysis heat generating device of cation acid solution-type is：
Electrolyte solution uses acid solution, is the characteristics of the acid solution, anion is in discharge in water order in OH-It
Afterwards.The penetrating film of ion selectivity is cation-exchange membrane or inorganic nano passage cation permselective film, and electrode is using lazy
Property electrode.H+It is diffused into through the penetrating film of cation selective from high concentrated acid solution in low concentration acid solution, makes high concentration side
It is negatively charged, low concentration side positively charged, electrical potential difference is produced in film both sides.After the two poles of the earth are connected, because anion is in discharge in water order
In OH-Afterwards, then the hydrone betatopic in high concentrated acid solution（2H2O-4e-=O2↑+4H+）；H in low concentration acid solution+
Electronics（2H++2e-=H2↑）；The H of high concentration side generation+Discharged again through membrane diffusion to low concentration side, so circulation,
The penetrating film both sides concentration difference of the cyclic process cation can maintain automatically, when water consumption is a certain amount of, supplement water.
The electricity generating principle of the anti-electrodialysis heat generating device of cationic salts solution-type is：
Electrolyte solution uses salting liquid, is the characteristics of the salting liquid, discharge order of the anion in water is in OH-It
Afterwards or and OH-It is identical, and discharge order of the cation in water is in H+Afterwards.The penetrating film of ion selectivity is cation-exchange membrane
Or inorganic nano passage cation permselective film, electrode use inert electrode.Cation permeable cation selective is penetrating
Film is diffused into low concentration salt solution from high concentration salt solutions, makes high concentration side negatively charged, low concentration side positively charged, in film both sides
Produce electrical potential difference.After the two poles of the earth are connected, because discharge order of the anion in water is in OH-Afterwards, and cation putting in water
Electric order is in H+Afterwards, then the hydrone betatopic in high concentration salt solutions（2H2O-4e-=O2↑+4H+）；In low concentration salt solution
Hydrone obtain electronics（4H2O+4e-=2H2↑+4OH-）；The H of high concentration side generation+Again through film and the generation of low concentration side
OH-Neutralizing, so circulation, the penetrating film both sides concentration difference of the cyclic process cation can maintain automatically, when water consumption is a certain amount of,
Supplement water.
The electricity generating principle of the anti-electrodialysis heat generating device of anion aqueous slkali type is：
Electrolyte solution uses aqueous slkali, is the characteristics of the aqueous slkali, discharge order of the cation in water is in H+It
Afterwards.The penetrating film of ion selectivity is anion-exchange membrane or inorganic nano passage anion selectivity passes through film, and electrode is using lazy
Property electrode.OH- It is diffused into through the penetrating film of anion selectivity from high concentration alkali solution in low concentration alkali solution, makes high concentration side
Positively charged, low concentration side is negatively charged, and electrical potential difference is produced in film both sides.After the two poles of the earth are connected, then the OH in low concentration solution-Betatopic
（4OH-- 4e-=O2↑+2H2O）；Because discharge order of the cation in water is in H+Afterwards, then the hydrone in highly concentrated solution
Obtain electronics（4H2O+4e-=2H2↑+4OH-）；The OH of high concentration side generation-Discharged again through membrane diffusion to low concentration side,
So circulation, the penetrating film both sides concentration difference of the cyclic process anion selectivity can maintain automatically, when water consumption is a certain amount of, mend
Water-filling.
The electricity generating principle of the anti-electrodialysis heat generating device of anion salt solution-type is：
Electrolyte solution uses salting liquid, is the characteristics of the salting liquid, discharge order of the anion in water is in OH-It
Afterwards, and discharge order of the cation in water is in H+Afterwards.The penetrating film of ion selectivity is anion-exchange membrane or inorganic nano
Passage anion selectivity passes through film, and electrode uses inert electrode.The penetrating film of anion-permeable anion selectivity is from high concentration
Salting liquid is diffused into low concentration salt solution, makes high concentration side positively charged, and low concentration side is negatively charged, and potential is produced in film both sides
Difference.After the two poles of the earth are connected, because discharge order of the anion in water is in OH-Afterwards, and discharge order of the cation in water is in H+
Afterwards, then the hydrone betatopic in low concentration salt solution,（2H2O-4e-=O2↑+4H+）；Hydrone in high concentration salt solutions
Obtain electronics（4H2O+4e-=2H2↑+4OH-）；The OH of high concentration side generation-The penetrating film of anion selectivity and low concentration are passed through again
The H of side generation+Neutralize, so circulation, the cyclic process film both sides concentration difference can maintain automatically with electrical potential difference, work as water consumption
When a certain amount of, water is supplemented.
For anti-electrodialysis heat generating device in actual moving process, the osmotic pressure of concentrated solution is much larger than the infiltration of weak solution
Pressure, so concentrated solution constantly will absorb water from weak solution, weak solution concentration is caused to increase severely, this is that the utility model need to avoid
's.By the indifferent electrolyte that reaction is not involved in toward addition in concentrated solution and weak solution（Film both sides concentration is equal）, can reduce
Film both sides permeable pressure head.Such as cation acid solution-type, the Na of addition equivalent in concentrated solution and weak solution2SO4Reagent.So
The permeable pressure head of film both sides solution is just substantially reduced, and hardly changes H+Concentration difference（Mainly H+Concentration difference produces electricity
Gesture）, while also add the electric conductivity of weak solution.
Be processed as bringing it is unfavorable be, still by taking cation acid solution-type as an example, add Na2SO4Afterwards, film both sides Na+It is dense
Spend equal, but Na+By H+The effect for the electric field established, opposite side can be migrated to from certain side, so as to weaken H+The electricity established
, i.e., generating voltage reduces.This is also intended to what is avoided.Therefore, what is added is used to reduce the electrolyte of film both sides permeable pressure head
In addition to meeting to be not involved in reacting this condition, it can also preferably meet another point, i.e., its ion in water is divalence or two
Valency above ion, such as MgSO4, transmitance of the high valence ion in ionic membrane be far below monovalent ion, therefore ionic membrane is by certain journey
Degree hinders Mg2+By so as to reduce the reduction of voltage.
Therefore the condition that the indifferent electrolyte for being used to reduce film both sides permeable pressure head added must is fulfilled for includes：
1st, anion in discharge in water order in OH-Afterwards or and OH-Discharge order is identical, such as SO4 2-、F-、NO3 -、OH-
Deng；And cation discharge order is in H+Afterwards or and H+It is identical, such as Li+、Na+、K+、H+Deng.
2nd, the electrolyte added is without the ion for producing electrical potential difference（Cation acid solution-type, cationic salts solution-type, the moon
The ion that ion aqueous slkali type, anion salt solution-type produce electrical potential difference is respectively H+, selected working electrolyte cation, OH-、
Selected working electrolyte anion）, and not with the ionic reaction in original electrolyte solution.
Preferably meet but nonessential condition includes：
1. the ion of the ion jack per line with producing electrical potential difference is more than divalence or divalence.
Such as：
In cation acid solution-type, meeting the anion of the indifferent electrolyte of condition includes：SO4 2-、F-、NO3 -Deng, and
OH-With H+Reaction, therefore OH-It is unsatisfactory for condition；The condition cation of satisfaction includes：Li+、Na+、K+、Mg2+Deng, and Mg2+Better than Li+、Na+、K+。
In cationic salts solution-type, meeting the anion of the indifferent electrolyte of condition includes：SO4 2-、F-、NO3 -Deng；It is full
Sufficient condition cation includes：Li+、Na+、K+、Mg2+Deng, and Mg2+Better than Li+、Na+、K+But if electrical potential difference is produced in original solution
Ion be Na+, then the electrolyte added can not contain Na+。
In anion aqueous slkali type, meeting the anion of the indifferent electrolyte of condition includes：SO4 2-、F-、NO3 -Deng；And
SO4 2-Better than F-、NO3 -；The condition cation of satisfaction includes：Li+、Na+、K+Deng Mg2+With OH-Reaction, therefore Mg2+It is unsatisfactory for condition.
In anion salt solution-type, meeting the anion of condition includes：SO4 2-、F-、NO3 -Deng；And SO4 2-Better than F-、
NO3 -But if the ion that electrical potential difference is produced in original solution is NO3 -, then the electrolyte added can not contain NO3 -；Meet condition sun
Ion includes：Li+、Na+、K+、Mg2+Deng, and Mg2+Better than Li+、Na+、K+。
Compared with prior art, the utility model has the advantage of：
1st, anti-electrodialysis heat generating device of the present utility model, directly heating makes device internal electrolyte solution temperature liter
Height, when solute ions are through ion selectivity penetrating film, a part of hot kinetic energy is changed into energy of position, due to the electrolyte of selection
In concentrated solution, anion is in discharge in water order in OH-Afterwards or and OH-Discharge order is identical, such as SO4 2-、F-、NO3 -、OH-Deng；
Cation discharge order is in H+Afterwards or and H+It is identical, such as Li+、Na+、K+、H+Deng, thus be actually water, H in power generation process+
And/or OH-Electrode reaction is participated in, thus the penetrating film both sides solution concentration difference of power generation process ion selectivity can maintain automatically, disappear
Consumption is water and heat energy.Therefore sustainable supply electrolyte solution is not required to, water only need to be supplemented when water consumption is a certain amount of, is once matched somebody with somebody
Solution processed can be recycled, and eliminate river and sea water preprocessing link, simplify power generation system structure, and almost ion is selected
Selecting property does not pollute through film.And the utility model can be in thermal source long lasting for work；Various low temperature environments are adapted to, are filled
Divide and utilize various low-grade heats, or even can also be generated electricity in natural environment；In addition, the utility model is simple in construction, cost is relatively low
This, can be connected serially in external circuit to improve generating voltage.
2nd, from the perspective of form of energy conversion, the anti-electrodialysis heat energy power-generating method of the utility model is a kind of by heat energy
It is converted into the method for electric energy.Heat energy power-generating method common at present includes：Fired power generating unit generates electricity, organic Rankine bottoming cycle waste heat
Generating, thermoelectric generating etc..And the utility model deposits difference in principle with the above method.The utility model is corresponding
TRT working solution need to only be heated, make solution interior energy increase, the interior energy of solution can be converted into electric energy, and
TRT corresponding to the utility model can below 100 DEG C normal work in low-temperature heat source, or even can be in normal temperature environment just
Often generate electricity, heat energy power-generating efficiency high.And thermoelectric conversion method common at present does not have These characteristics.With for the generating
The ion selectivity of method passes through the lifting of film properties, and the electricity-generating method will be applicable to higher, wider array of temperature conditionss.
Brief description of the drawings
Fig. 1 is anti-electrodialysis heat generating device structural representation of the present utility model.
Fig. 2 is anti-electrodialysis heat generating device pictorial diagram of the present utility model.
Fig. 3 is the fundamental diagram of the anti-electrodialysis heat generating device of embodiment 1.
Fig. 4 is the H of embodiment 1+Spread schematic diagram.
Fig. 5 is the fundamental diagram of the anti-electrodialysis heat generating device of embodiment 2.
Fig. 6 is the fundamental diagram of the anti-electrodialysis heat generating device of embodiment 3.
Fig. 7 is the fundamental diagram of the anti-electrodialysis heat generating device of embodiment 4.
Fig. 8 is to carry out electric energy using the anti-electrodialysis heat generating device of embodiment 1 and embodiment 2 to produce empirical curve
Figure.
Fig. 9 is to carry out electric energy release experiment curve using the anti-electrodialysis heat generating device of embodiment 1 and embodiment 2
Figure.
Figure 10 is that load current varies with temperature curve in being generated electricity using the anti-electrodialysis heat generating device of embodiment 1
Figure.
Figure 11 be using embodiment 1 anti-electrodialysis heat generating device generate electricity in load current with H2SO4Solution concentration becomes
Change curve map.
Label declaration：1st, pole room；11st, high concentration electric electrolyte solution room；12nd, low concentration electrolyte solution room；2nd, thermal source；
3rd, the penetrating film of ion selectivity；4th, inert electrode；5th, water filling port.
Embodiment
The utility model is further described below in conjunction with Figure of description and specific preferred embodiment, but not because
This and limit the scope of protection of the utility model.
Embodiment 1：
A kind of anti-electrodialysis heat generating device of the present utility model, as shown in figure 1, being carried out including pole room 1 and to pole room 1
The thermal source 2 of heating, electrolyte solution is provided with the pole room, and pole room 1 is divided into high concentration by the penetrating film 3 of ion selectivity and is electrolysed
Matter solution room 11 and low concentration electrolyte solution room 12, the high concentration electric electrolyte solution room 11 and low concentration electrolyte solution room
Inert electrode 4 is inserted with 12 respectively；Wherein, it is all provided with high concentration electric electrolyte solution room 11 and low concentration electrolyte solution room 12
There is water filling port 5.
In the present embodiment, the penetrating film 3 of ion selectivity is cation-exchange membrane.
In the present embodiment, electrolyte solution H2SO4Solution.
Fig. 2 is the anti-electrodialysis heat generating device pictorial diagram of utility model（Clamping device uses Zhejiang Saite membrane technology
The clamping device of the CT-100 electrodialysis lab scale equipment of Co., Ltd's production）, anode is with two electrodes of negative electrode using titanium painting ruthenium
Insoluble electrode, the protons of HoCEM Grion 0011 that amberplex is sold using Hangzhou Lv He Environmental Protection Technology Co., Ltd are handed over
Change film.
A kind of method that anti-anti- electric installation of electrodialysis heat energy using above-mentioned the present embodiment is generated electricity, including following step
Suddenly：
Add H in high concentration electric electrolyte solution room 112SO4Solution, low concentration electrolyte solution room 12 plus distilled water, are placed in
In 50 DEG C of constant temperature thermals source, by the inertia of the inert electrode of high concentration electric electrolyte solution room 11 and low concentration electrolyte solution room 12 electricity
Pole is connected with wire, is generated electricity.
The operation principle of the present embodiment is as shown in figure 3, H+Through cation-exchange membrane from high concentration electric electrolyte solution room 11
In be diffused into low concentration electrolyte solution room 12, make high concentration side negatively charged, low concentration side positively charged, in cation-exchange membrane
Both sides produce electrical potential difference.After the two poles of the earth are connected, due to SO4 2-In discharge in water order in OH-Afterwards, then in high concentrated acid solution
Hydrone betatopic, electrode reaction occurs：2H2O-4e-=O2↑+4H+；H in low concentration acid solution+Electronics is obtained, it is anti-that electrode occurs
Should：2H++2e-=H2↑；The H of high concentration side generation+Discharged again through membrane diffusion to low concentration side, so circulation, should
The penetrating film both sides concentration difference of cyclic process cation can maintain automatically, when water consumption is a certain amount of, supplement water.
By taking the present embodiment as an example, illustrate that the principle that concentration difference can maintain automatically in the utility model power generation process is as follows：
As shown in figure 4, it is respectively substance withdrawl syndrome as C to set cation-exchange membrane both sidesN、CM（CN>CM）H2SO4It is molten
Liquid.Diffusion law points out, in the solution, due to the uneven concentration of certain component materials, causes the particle of this component materials
Place migration from from the place of high concentration to low concentration.Cation-exchange membrane only allows cation by not allowing anion to lead to
Cross, therefore H+To be C by concentrationNTo move to concentration be C in placeMPlace, SO4 2-Do not migrate.
System is in constant temperature thermal source, and N, M both sides are respectively inserted an inert electrode and connected with wire.The H of N sides+It can spread
To M sides.Due to H+Diffusion cause exchange membrane both sides to form electric field E, H of the direction along x-axis negative direction+By with diffused sheet
Effect to opposite electric field force, causes H+Average translational kinetic energy reduces.The Microscopic of temperature is pointed out：The temperature of object is thing
Internal portion makees " measuring " of a large amount of average kinetic energy of gas molecules of random motion, and average kinetic energy of gas molecules is bigger, object
Temperature is higher.Therefore H+Average translational kinetic energy, which will reduce, to cause system temperature to reduce, now, because system is in constant temperature thermal source,
When system temperature is more lower slightly than heat source temperature, just there is small heat to be transmitted to system, system temperature is remained unchanged.In system
Portion, H+Moved on to by spreading by low potential at high potential, energy of position is stored, in its exterior（Wire）, H2Electronics in O by
Electric field force is acted on, and electronics is moved on at high potential at low potential, and system external does electric work, and a part of electric energy is converted into chemistry
Can storage.
It can be seen from ions mobile sequence list, in M sides, electrode reaction must occur：2H++2e-=H2↑, in N sides, electricity must occur
React pole：2H2O-2e-=2H++O2↑。H+Diffusion cause M sides H+Concentration raises, N sides H+Concentration reduces, and rise is equal to drop
Low amounts；Electric discharge causes M sides H+Concentration reduces, N sides H+Concentration raises, and understands that reduction amount is equal to rise by electrode equation；When being
When system is in dynamic balance state, in M sides, H+It is equal to the concentration reduced by electric discharge, in N sides, H because spreading elevated concentration+Because expanding
The concentration that dissipating reduces is equal to because of elevated concentration of discharging；Therefore M, N both sides H+Concentration can remain unchanged, i.e., concentration difference remains unchanged.
Embodiment 2：
A kind of anti-electrodialysis heat generating device of the present utility model, structure is substantially the same manner as Example 1, and its difference is only
It is：In the present embodiment, electrolyte solution Na2SO4Solution.
A kind of method that anti-anti- electric installation of electrodialysis heat energy using above-mentioned the present embodiment is generated electricity, including following step
Suddenly：
Add Na in high concentration electric electrolyte solution room 112SO4Solution, low concentration electrolyte solution room 12 plus distilled water, are placed in
In 50 DEG C of constant temperature thermals source, by the inertia of the inert electrode of high concentration electric electrolyte solution room 11 and low concentration electrolyte solution room 12 electricity
Pole is connected with wire, is generated electricity.
The operation principle of the present embodiment is as shown in figure 5, Na+Through cation-exchange membrane from high concentration electric electrolyte solution room 11
It is diffused into low concentration electrolyte solution room 12, makes high concentration side negatively charged, low concentration side positively charged, potential is produced in film both sides
Difference.After the two poles of the earth are connected, due to SO4 2-Discharge order in water is in OH-Afterwards, and Na+Discharge order in water is in H+Afterwards,
The then hydrone betatopic in high concentration electric electrolyte solution room 11, electrode reaction occurs：2H2O-4e-=O2↑+4H+；Low concentration electricity
Hydrone in electrolyte solution room 12 obtains electronics, and electrode reaction occurs：4H2O+4e-=2H2↑+4OH-；The H of high concentration side generation+
Again through film and the OH of low concentration side generation-Neutralize, so circulation, the penetrating film both sides concentration difference of the cyclic process cation can
It is automatic to maintain, when water consumption is a certain amount of, supplement water.
Embodiment 3：
A kind of anti-electrodialysis heat generating device of the present utility model, structure is substantially the same manner as Example 1, and its difference is only
It is：In the present embodiment, the penetrating film 3 of ion selectivity is anion-exchange membrane, and electrolyte solution is NaOH solution.
A kind of method that anti-anti- electric installation of electrodialysis heat energy using above-mentioned the present embodiment is generated electricity, including following step
Suddenly：
In high concentration electric electrolyte solution room 11 plus NaOH solution, low concentration electrolyte solution room 12 add distilled water, are placed in
In 50 DEG C of constant temperature thermals source, by the inertia of the inert electrode of high concentration electric electrolyte solution room 11 and low concentration electrolyte solution room 12 electricity
Pole is connected with wire, is generated electricity.
The operation principle of the present embodiment is as shown in fig. 6, OH-Through anion-exchange membrane from high concentration electric electrolyte solution room 11
It is diffused into low concentration electrolyte solution room 12, makes high concentration side positively charged, low concentration side is negatively charged, and potential is produced in film both sides
Difference.After the two poles of the earth are connected, then the OH in low concentration solution-Betatopic, electrode reaction occurs：4OH-- 4e-=O2↑+2H2O；Due to Na+
Discharge order in water is in H+Afterwards, the hydrone in highly concentrated solution obtains electronics, and electrode reaction occurs：4H2O+4e-=2H2↑
+4OH-；The OH of high concentration side generation-Discharged again through membrane diffusion to low concentration side, so circulation, the cyclic process
The penetrating film both sides concentration difference of anion selectivity can maintain automatically, when water consumption is a certain amount of, supplement water.
Embodiment 4：
A kind of anti-electrodialysis heat generating device of the present utility model, structure is substantially the same manner as Example 1, and its difference is only
It is：In the present embodiment, the penetrating film 3 of ion selectivity is anion-exchange membrane, electrolyte solution Na2SO4Solution.
A kind of method that anti-anti- electric installation of electrodialysis heat energy using above-mentioned the present embodiment is generated electricity, including following step
Suddenly：
Add Na in high concentration electric electrolyte solution room 112SO4Solution, low concentration electrolyte solution room 12 plus distilled water, are placed in
In 50 DEG C of constant temperature thermals source, by the inertia of the inert electrode of high concentration electric electrolyte solution room 11 and low concentration electrolyte solution room 12 electricity
Pole is connected with wire, is generated electricity.
The operation principle of the present embodiment is as shown in fig. 7, SO4 2-Through anion-exchange membrane from from high concentration electric electrolyte solution
Room 11 is diffused into low concentration electrolyte solution room 12, makes high concentration side positively charged, and low concentration side is negatively charged, is produced in film both sides
Electrical potential difference.After the two poles of the earth are connected, due to SO4 2-Discharge order in water is in OH-Afterwards, and Na+Discharge order in water is in H+
Afterwards, then the hydrone betatopic in low concentration salt solution, electrode reaction occurs：2H2O-4e-=O2↑+4H+；High concentration salt solutions
In hydrone obtain electronics, electrode reaction occurs：4H2O+4e-=2H2↑+4OH-；The OH of high concentration side generation-Again through it is cloudy from
Sub- permselective membrane and the H of low concentration side generation+Neutralize, so circulation, the cyclic process film both sides concentration difference can be automatic
Maintain, when water consumption is a certain amount of, supplement water.
Embodiment 5：
Electric energy generation and release experiment are carried out using the anti-electrodialysis heat generating device of embodiment 1 and embodiment 2
Experiment condition is：In the anti-electrodialysis heat generating device of embodiment 1, enriching in high concentration electric electrolyte solution room 11
Spend for 1 mol/L H2SO4Solution, low concentration electrolyte solution room 12 plus distilled water；The anti-electrodialysis heat energy power-generating dress of embodiment 2
In putting, in high concentration electric electrolyte solution room 11 plus concentration is 0.5 mol/L Na2SO4Solution, low concentration electrolyte solution room 12 add
Distilled water；The two is generated electricity at normal temperatures.
Experimental procedure：Two electrodes are made to open a way, open-circuit voltage is gradually increasing, and device carries out the mistake that electric energy is produced and stored automatically
Journey, experimental record are as shown in Figure 8.When power storage to it is a certain amount of when, 100 Ω loads are accessed between the two poles of the earth, load current is gradual
Decline, device carries out electric energy release process.Experimental record is as shown in Figure 9.As a result the anti-electric osmose of embodiment 1 and embodiment 2 is shown
Analysis heat generating device realizes heat energy power-generating.
Embodiment 6：
Load current and temperature relation determination experiment are carried out using the anti-electrodialysis heat generating device of embodiment 1
Experiment condition is：In the anti-electrodialysis heat generating device of embodiment 1, enriching in high concentration electric electrolyte solution room 11
Spend for 0.5 mol/L H2SO4Solution, low concentration electrolyte solution room 12 plus distilled water.
Experimental procedure：Access 1000 Ω between the two poles of the earth to load, after enough long-times, electric current is basicly stable, and device is placed in
In electronic constant incubator, to simulate thermal source, by setting calorstat temperature to change heat source temperature.Load current varies with temperature curve
As shown in Figure 10.As a result show that the utility model realizes heat energy power-generating in the case of the thermal source of normal temperature ~ about 55 DEG C temperature, and
The utility model need to only heat to its working solution, make the increase of solution interior energy, the interior energy of solution can be converted into electric energy,
Its system architecture is simple.
Embodiment 7：
Load current and concentration difference relation determination experiment are carried out using the anti-electrodialysis heat generating device of embodiment 1
Experiment condition is：In the anti-electrodialysis heat generating device of embodiment 1, in high concentration electric electrolyte solution room 11 plus not
With the H of concentration2SO4Solution is tested, low concentration electrolyte solution room 12 plus distilled water, is generated electricity under normal temperature.
Experimental procedure：100 Ω loads are accessed between the two poles of the earth, in after enough long-times, electric current is basicly stable, and record is different dense
The H of degree2SO4Electric current after stabilization corresponding to solution.Load current is with H2SO4Solution concentration change curve is as shown in figure 11.As a result
Show that output voltage can increase with output current by improving film both sides solution concentration difference, curve has a downward trend can
Can be because caused by the too high influence to ion exchange film properties of solution concentration.
Embodiment 8：
Storage, discharge test repeatedly are carried out using the anti-electrodialysis heat generating device of embodiment 2
Experiment condition is：In the anti-electrodialysis heat generating device of embodiment 2, enriching in high concentration electric electrolyte solution room 11
Spend for 0.5 mol/L Na2SO4Solution, low concentration electrolyte solution room 12 plus distilled water.
Experimental procedure：Two electrodes are made to open a way, device carries out the process that electric energy is produced and stored automatically, when power storage to one
When quantitative, make the two poles of the earth short-circuit, device carries out electric energy release process, alternately open circuit and short circuit operation, and operation is multiple repeatedly.
Experimental result shows that device can be realized to be stored up, discharges repeatedly, illustrates the utility model power generation process intermediate ion exchange membrane both sides solution
Concentration difference can maintain automatically, and once preparing solution can be long-term use of.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment.All technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, improvement and profit on the premise of the utility model principle is not departed from
Decorations, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (10)
- A kind of 1. anti-electrodialysis heat generating device, it is characterised in that the thermal source heated including pole room and to pole room, it is described It is provided with electrolyte solution in pole room, the pole room is divided into high concentration electric electrolyte solution room and low by the penetrating film of ion selectivity Inertia electricity is inserted with concentration electrolyte solution room, the high concentration electric electrolyte solution room and low concentration electrolyte solution room respectively Pole；The electrolyte solution is acid solution, aqueous slkali or salting liquid；In the acid solution, discharge order of the anion in water In OH-Afterwards；In the aqueous slkali, discharge order of the cation in water is in H+Afterwards；In the salting liquid, anion is in water In discharge order in OH-Afterwards, and discharge order of the cation in water is in H+Afterwards.
- 2. anti-electrodialysis heat generating device according to claim 1, it is characterised in that the electrolyte solution is molten for acid During liquid, the penetrating film of ion selectivity is the penetrating film of cation selective.
- 3. anti-electrodialysis heat generating device according to claim 1, it is characterised in that the electrolyte solution is alkali soluble During liquid, the penetrating film of ion selectivity is the penetrating film of anion selectivity.
- 4. anti-electrodialysis heat generating device according to claim 1, it is characterised in that the electrolyte solution is that salt is molten During liquid, the penetrating film of ion selectivity is the penetrating film of cation selective or the penetrating film of anion selectivity.
- 5. the anti-electrodialysis heat generating device according to any one of Claims 1 to 4, it is characterised in that in the pole room It is additionally provided with the indifferent electrolyte for reducing the penetrating film both sides permeable pressure head of ion selectivity；The high concentration electric electrolyte solution room In low concentration electrolyte solution room, the concentration of indifferent electrolyte is equal；The indifferent electrolyte meets following condition：（1）Anion is in discharge in water order in OH-Afterwards, and cation discharge order is in H+Afterwards；（2）Without produce electrical potential difference ion, not with the ionic reaction in electrolyte solution.
- 6. anti-electrodialysis heat generating device according to claim 5, it is characterised in that the indifferent electrolyte also meets Following condition：（3）The ion of ion jack per line with producing electrical potential difference is more than divalence or divalence.
- 7. anti-electrodialysis heat generating device according to claim 1, it is characterised in that the acid solution includes H2SO4It is molten Liquid, HF solution or HNO3Solution；The aqueous slkali includes NaOH solution, KOH solution or LiOH solution；The salting liquid includes Na2SO4Solution, K2SO4Solution or Li2SO4Solution.
- 8. the anti-electrodialysis heat generating device according to claim 2 or 4, it is characterised in that the cation selective Penetrating film is cation-exchange membrane or inorganic nano passage cation permselective film.
- 9. the anti-electrodialysis heat generating device according to claim 3 or 4, it is characterised in that the anion selectivity Penetrating film is that anion-exchange membrane or inorganic nano passage anion selectivity pass through film.
- 10. according to the anti-electrodialysis heat generating device described in Claims 1 to 4,6,7 any one, it is characterised in that the height Water filling port is equipped with concentration electrolyte solution room and low concentration electrolyte solution room.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992716A (en) * | 2017-05-12 | 2017-07-28 | 长沙理工大学 | Anti- electrodialysis heat generating device and method |
| US10938329B2 (en) | 2018-03-22 | 2021-03-02 | University Of Notre Dame Du Lac | Electricity generation from low grade waste heat |
| US11502323B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11502322B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11855324B1 (en) | 2022-11-15 | 2023-12-26 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell with heat pump |
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2017
- 2017-05-12 CN CN201720526592.XU patent/CN206878725U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992716A (en) * | 2017-05-12 | 2017-07-28 | 长沙理工大学 | Anti- electrodialysis heat generating device and method |
| CN106992716B (en) * | 2017-05-12 | 2024-01-19 | 长沙理工大学 | Reverse electrodialysis heat energy power generation device and method |
| US10938329B2 (en) | 2018-03-22 | 2021-03-02 | University Of Notre Dame Du Lac | Electricity generation from low grade waste heat |
| US11502323B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11502322B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11563229B1 (en) | 2022-05-09 | 2023-01-24 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11611099B1 (en) | 2022-05-09 | 2023-03-21 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11699803B1 (en) | 2022-05-09 | 2023-07-11 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11855324B1 (en) | 2022-11-15 | 2023-12-26 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell with heat pump |
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