CN204577513U - One utilizes underground pipe to carry out the temperature controlled device of all-vanadium redox flow battery electrolyte - Google Patents
One utilizes underground pipe to carry out the temperature controlled device of all-vanadium redox flow battery electrolyte Download PDFInfo
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- CN204577513U CN204577513U CN201520209865.9U CN201520209865U CN204577513U CN 204577513 U CN204577513 U CN 204577513U CN 201520209865 U CN201520209865 U CN 201520209865U CN 204577513 U CN204577513 U CN 204577513U
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- 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
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Abstract
The utility model discloses one utilizes underground pipe to carry out the temperature controlled device of all-vanadium redox flow battery electrolyte, mainly comprises full vanadium cell pile, electrolyte feed tube, anolyte storage tank, heat exchange copper tube, underground pipe, circulating water pump, communication control line, temperature sensor, electromagnetic pump, controller.Wherein, full vanadium cell pile is connected to form a circulation line by electrolyte feed tube and anolyte storage tank; Heat exchange copper tube is placed on anolyte storage tank inside and is connected with underground pipe, thus forms another circulation line; On underground pipe, circulating water pump is housed simultaneously.Serial temperature transducer and electromagnetic pump on electrolyte feed tube, controller is connected respectively to circulating water pump and temperature sensor by communication control line.This device can regulate electrolyte temperature in rational scope by lower cost, reduces the too high impact on performance index such as vanadium cell charging/discharging voltage, coulombic efficiency, energy efficiency and self discharges of electrolyte intensification.
Description
Technical field
The utility model relates to one and utilizes underground pipe to carry out the temperature controlled device of all-vanadium redox flow battery electrolyte.
Background technology
Vanadium redox battery (VRB) have discharge and recharge invertibity high, have extended cycle life, energy conversion efficiency is high, both positive and negative polarity electrolyte is without cross pollution and the easy advantage such as scale.Vanadium cell system can be widely used in the peak load shifting of the energy storage device of solar energy and wind power generation, large-scale emergency power system, power station energy storage and electric power system, the aspects such as load levelling.Current vanadium cell obtains significant progress abroad, and some commercialization demonstration projects have also been set up and stable operation.
Vanadium cell system is formed primarily of a few parts such as barrier film, pole plate, electrode, fluid reservoir (storing both positive and negative polarity electrolyte) and circulating pumps.In vanadium cell, be the vanadium ion solution of different valence state in both positive and negative polarity fluid reservoir.Wherein just very V4+/V5+ electricity is right, and negative pole is that V2+/V3+ electricity is right.During work, both positive and negative polarity solution to be imported in battery by pump and on electrode, redox reaction occurs, and separates, inside battery conducting by the cation directional migration in electrolyte during discharge and recharge between battery plus-negative plate with amberplex.
If electrolyte temperature is too low, electrolyte can become thickness and cause flow rate of liquid to reduce, thus reduces system power, especially under high SOC and low SOC state; Under another extreme condition, if electrolyte is under the time that temperature is longer more than 40 DEG C, vanadic oxide will be there is and separate out in the electrolytic solution, be attached to the circulation of also block pumps on carbon felt, reduce the efficiency for charge-discharge of vanadium cell, even cause battery normally to work.Research shows, the operating temperature interval that electrolyte is recommended is between 10 DEG C ~ 30 DEG C.
But the research in this field is at present the research carried out for the stability of electrolyte itself mostly, affects, there is no report at present for temperature on the actual performance of vanadium cell.Owing to there is the Cross slot interference of both positive and negative polarity electrode solution in vanadium cell, thermal response can be related in course of reaction, the change of temperature not only can affect the stability of electrolyte itself, more can have an impact to the electrochemical reaction of electrode active material on electrode, thus finally have influence on the performance of battery.And raise with temperature, the speed that battery material corrosion and irreversible destructive side reaction produce is accelerated, and requires that more strictly these all can have an impact to the life-span of vanadium cell to the sealing of battery and anticorrosion grade.Therefore, be badly in need of a kind of can the device of conservative control electrolyte of vanadium redox battery operating temperature, thus reduce electrolyte temperature and raise negative effect to battery performance indexs such as vanadium cell charging/discharging voltage, coulombic efficiency, energy efficiency and self discharges.
Summary of the invention
The purpose of this utility model is to provide one and utilizes underground pipe to carry out the temperature controlled device of all-vanadium redox flow battery electrolyte, its temperature that can control in electrolyte of vanadium redox battery operation running remains in ideal range, thus reduces the too high negative effect to battery performance indexs such as vanadium cell charging/discharging voltage, coulombic efficiency, energy efficiency and self discharges of electrolyte intensification.
For achieving the above object, the utility model adopts following technical scheme: one utilizes underground pipe to carry out the temperature controlled device of all-vanadium redox flow battery electrolyte, it utilizes the energy in underground to regulate the temperature of electrolyte by adopting underground pipe technology, makes it keep in the reasonable scope.
Temperature controlled device as above, is characterized in that: mainly comprise full vanadium cell pile, electrolyte feed tube, anolyte storage tank, heat exchange copper tube, underground pipe, circulating water pump, communication control line, temperature sensor, electromagnetic pump, controller.Wherein, full vanadium cell pile is connected to form a circulation line by electrolyte feed tube and anolyte storage tank; Heat exchange copper tube is placed on anolyte storage tank inside and is connected with underground pipe, thus forms another circulation line; On underground pipe, circulating water pump is housed simultaneously.Serial temperature transducer and electromagnetic pump on electrolyte feed tube, controller is connected respectively to circulating water pump and temperature sensor by communication control line.
Temperature controlled device as above, temperature sensor is used for monitoring electrolyte temperature at any time, and controller is compared by the Monitoring Data of temperature sensor and the electrolyte temperature of setting, thus sends command adapted thereto to circulating water pump.Because the temperature of underground is generally constant between 10 DEG C ~ 20 DEG C, the electrolysis optimum working temperature scope of tucking in just, so when electrolyte temperature is too high, by the heat transfer liquids in underground pipe, the heat in electrolyte can be taken in underground, thus the temperature of reduction electrolyte is in setting range; Otherwise, when electrolyte temperature is too low, by the heat transfer liquids in underground pipe, the heat in underground can be brought in electrolyte, thus the temperature of lifting electrolyte is in setting range.
The utility model is by adopting above-mentioned principle and structure, can guarantee that electrolyte temperature remains in the zone of reasonableness of setting, thus reduce the negative effect of electrolyte temperature rising to battery performance indexs such as vanadium cell charging/discharging voltage, coulombic efficiency, energy efficiency and self discharges.
Accompanying drawing explanation
Accompanying drawing is that one utilizes underground pipe to carry out the temperature controlled structure drawing of device of all-vanadium redox flow battery electrolyte.
The full vanadium cell pile of 1-; 2-electrolyte feed tube; 3-anolyte storage tank; 4-heat exchange copper tube; 5-underground pipe; 6-circulating water pump; 7-communication control line; 8-temperature sensor; 9-electromagnetic pump; 10-controller.
Now in conjunction with Figure of description, the utility model is described in further detail.
Embodiment
As shown in drawings, one described in the utility model utilizes underground pipe to carry out the temperature controlled device of all-vanadium redox flow battery electrolyte, mainly comprises full vanadium cell pile (1), electrolyte feed tube (2), anolyte storage tank (3), heat exchange copper tube (4), underground pipe (5), circulating water pump (6), communication control line (7), temperature sensor (8), electromagnetic pump (9), controller (10).Wherein, full vanadium cell pile (1) is connected to form a circulation line by electrolyte feed tube (2) and anolyte storage tank (3); Heat exchange copper tube (4) is placed on anolyte storage tank (3) inside and is connected with underground pipe (5), thus forms another circulation line; On underground pipe (5), circulating water pump (6) is housed simultaneously.At electrolyte feed tube (2) serial temperature transducer (8) and electromagnetic pump (9), controller (10) is connected respectively to circulating water pump (6) and temperature sensor (8) by communication control line (7).
Because the temperature of underground is generally constant between 10 DEG C ~ 20 DEG C, the electrolysis optimum working temperature scope of tucking in just.
When vanadium cell works, due to redox reaction, electrolyte temperature can rise.When temperature exceeds the electrolyte temperature scope of setting (as 10 DEG C ~ 30 DEG C), controller (10) can start circulating water pump (6), by the heat transfer liquids in underground pipe, the heat in electrolyte is taken in underground, thus the temperature of reduction electrolyte is in setting range, realizes the function of electrolyte refrigeration.
When causing electrolyte temperature too low (as 0 DEG C) due to reasons such as weather, when vanadium cell cannot normally start or cause thus battery operated efficiency too low, controller (10) can start circulating water pump (6) equally, by the heat transfer liquids in underground pipe, the heat in underground is brought in electrolyte, thus the temperature of lifting electrolyte is to (as 10 DEG C ~ 30 DEG C) in setting range, realize the function that electrolyte heats, guarantee that vanadium cell normally starts and efficiency operation.
In addition, utilize the use for laboratory all-vanadium flow battery assembled voluntarily, investigate 25 DEG C ~ 45 DEG C scope electrolyte inside temperature to the impact of vanadium cell charging/discharging voltage, coulombic efficiency, energy efficiency and self-discharge performance, and Primary Study and discussion have been carried out to its Influencing Mechanism.Result shows, the rising along with electrolyte temperature:
(1) average coulombic efficiencies of vanadium cell has dropped to 45 DEG C 87.4% from 90.7% when 25 DEG C;
(2) energy efficiency of battery has dropped to 45 DEG C 78.8% from 25 DEG C 81.6%;
(3) impact of temperature on self-discharge of battery performance is particularly evident, and 25 DEG C time, the time that the open circuit voltage of battery remains on more than 0.8V is 27h, then can only keep 16h at 45 DEG C.
The discharge capacity of battery, charging voltage and discharge voltage all reduce along with the rising of electrolyte temperature.Cause the reason of this result mainly along with electrolyte temperature raises, the electrode reaction invertibity of electrolyte active material increases, and polarization reduces, and the voltage curve therefore during battery charging during high temperature is lower than low temperature; But due to electrolyte temperature raise time, the diffusivity of ion increases simultaneously, and this just causes is increased by the quantity of the vanadium ion of amberplex Cross slot interference, and therefore during high temperature, the coulombic efficiency of battery will lower than the coulombic efficiency of battery during low temperature.Meanwhile, because iontophoretic injection during high temperature increases, cause both positive and negative polarity electrolyte ion Cross slot interference to aggravate, electrode active material concentration reduces, and therefore discharge voltage reduces.
One described in the utility model utilizes underground pipe to carry out the temperature controlled device of all-vanadium redox flow battery electrolyte, the occasion of various extensive energy storage can be widely used in, especially the new energy field such as photovoltaic generation and wind power generation, the bulk life time that can extend all-vanadium flow battery is further grown and promotes battery operated efficiency.
For the technical staff in the utility model field, according to technical scheme described above and design, other various corresponding change and distortion can be made, all should belong within the protection range of application claims these all changes and distortion.
Claims (1)
1. utilize underground pipe to carry out the temperature controlled device of all-vanadium redox flow battery electrolyte, it is characterized in that: mainly comprise full vanadium cell pile (1), electrolyte feed tube (2), anolyte storage tank (3), heat exchange copper tube (4), underground pipe (5), circulating water pump (6), communication control line (7), temperature sensor (8), electromagnetic pump (9), controller (10); Wherein, full vanadium cell pile (1) is connected to form a circulation line by electrolyte feed tube (2) and anolyte storage tank (3); Heat exchange copper tube (4) is placed on anolyte storage tank (3) inside and is connected with underground pipe (5), thus forms another circulation line; On underground pipe (5), circulating water pump (6) is housed simultaneously; Electrolyte feed tube (2) is in series with temperature sensor (8) and electromagnetic pump (9), and controller (10) is connected respectively to circulating water pump (6) and temperature sensor (8) by communication control line (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520209865.9U CN204577513U (en) | 2015-04-09 | 2015-04-09 | One utilizes underground pipe to carry out the temperature controlled device of all-vanadium redox flow battery electrolyte |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520209865.9U CN204577513U (en) | 2015-04-09 | 2015-04-09 | One utilizes underground pipe to carry out the temperature controlled device of all-vanadium redox flow battery electrolyte |
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| CN204577513U true CN204577513U (en) | 2015-08-19 |
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| CN201520209865.9U Expired - Fee Related CN204577513U (en) | 2015-04-09 | 2015-04-09 | One utilizes underground pipe to carry out the temperature controlled device of all-vanadium redox flow battery electrolyte |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449544A (en) * | 2018-11-06 | 2019-03-08 | 广东工业大学 | A kind of aluminum air battery system and control method |
| CN109509898A (en) * | 2017-09-14 | 2019-03-22 | 大连融慧能源科技有限公司 | Heat recovery system and recovery method suitable for flow battery |
| EP3498887A1 (en) * | 2017-12-18 | 2019-06-19 | Siemens Aktiengesellschaft | Electrolysis device and method for operating the same |
| JP2020516035A (en) * | 2017-03-27 | 2020-05-28 | アンゲロ ダンツィＡｎｇｅｌｏ Ｄ’ＡＮＺＩ | Embodiments of tanks for flow batteries |
| CN114744237A (en) * | 2020-12-21 | 2022-07-12 | 广东三水合肥工业大学研究院 | Circulating system and method for flow battery |
| CN116130705A (en) * | 2023-01-31 | 2023-05-16 | 安徽海螺融华储能科技有限公司 | Gravitational potential energy and heat energy integrated recovery device of all-vanadium redox flow battery |
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2015
- 2015-04-09 CN CN201520209865.9U patent/CN204577513U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020516035A (en) * | 2017-03-27 | 2020-05-28 | アンゲロ ダンツィＡｎｇｅｌｏ Ｄ’ＡＮＺＩ | Embodiments of tanks for flow batteries |
| CN109509898A (en) * | 2017-09-14 | 2019-03-22 | 大连融慧能源科技有限公司 | Heat recovery system and recovery method suitable for flow battery |
| CN109509898B (en) * | 2017-09-14 | 2020-11-20 | 大连融慧能源科技有限公司 | Heat recovery system and method suitable for flow battery |
| EP3498887A1 (en) * | 2017-12-18 | 2019-06-19 | Siemens Aktiengesellschaft | Electrolysis device and method for operating the same |
| WO2019120823A1 (en) * | 2017-12-18 | 2019-06-27 | Siemens Aktiengesellschaft | Electrolysis device and method for operating the electrolysis device |
| CN109449544A (en) * | 2018-11-06 | 2019-03-08 | 广东工业大学 | A kind of aluminum air battery system and control method |
| CN109449544B (en) * | 2018-11-06 | 2024-05-10 | 广东工业大学 | Aluminum air battery system and control method |
| CN114744237A (en) * | 2020-12-21 | 2022-07-12 | 广东三水合肥工业大学研究院 | Circulating system and method for flow battery |
| CN114744237B (en) * | 2020-12-21 | 2024-01-30 | 广东三水合肥工业大学研究院 | Circulation system and method for flow battery |
| CN116130705A (en) * | 2023-01-31 | 2023-05-16 | 安徽海螺融华储能科技有限公司 | Gravitational potential energy and heat energy integrated recovery device of all-vanadium redox flow battery |
| CN116130705B (en) * | 2023-01-31 | 2023-07-28 | 安徽海螺融华储能科技有限公司 | Gravitational potential energy and heat energy integrated recovery device of all-vanadium redox flow battery |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20170409 |