CN209119234U - A kind of online Real-time Feedback device of flow battery bubbing - Google Patents
A kind of online Real-time Feedback device of flow battery bubbing Download PDFInfo
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- CN209119234U CN209119234U CN201821803307.5U CN201821803307U CN209119234U CN 209119234 U CN209119234 U CN 209119234U CN 201821803307 U CN201821803307 U CN 201821803307U CN 209119234 U CN209119234 U CN 209119234U
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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
- Y02E60/50—Fuel cells
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Abstract
The utility model relates to a kind of online Real-time Feedback devices of flow battery bubbing, the bubbing online feedback device, including flow battery, electrolyte driving device, pipeline, electrolyte storage tank, gas flow adjusting means, inertia compressed gas storage device, drying device, under test gas detection device, absorb last row device, battery management system etc., battery electrolyte storage tank is equipped with inertia compressed gas storage and under test gas detection device, compressed gas storage rear end is equipped with gas flow adjusting means, it is respectively equipped with drying device before and after under test gas detection device and absorbs last row device.Pass through the utility model, can in precise real-time detection flow battery operational process bubbing component and concentration, while will test value and feeding back to battery management system, system running state is adjusted in real time, the generation rate for fundamentally reducing bubbing, improves system run all right.
Description
Technical field
The utility model relates to flow battery application fields, real-time online more particularly to a kind of flow battery bubbing
Feedback device.
Background technique
With the development of economy, demand of the mankind to energy storage can be increasing.In various energy storage systems, flow battery by
In its charge and discharge fast response time, battery structure is simple, capacity is big and the reaction of adjustable, Solid Free, cheap, the service life is long,
The features such as environmental-friendly, especially the fixed storage of the renewable sources of energy has advantage outstanding in terms of energy storage, obtains quickly
Development.
Flow battery is run within the scope of certain voltage window in the process of running, when voltage window is wide, just
There are the generation of the side reaction of gas evolution (common bubbings such as hydrogen, oxygen, chlorine etc.), and then influence cell performance
Can, influence battery life.Therefore it just needs to analyze the gas evolution in cell operation, to judge the hair of side reaction
Raw rate and the influence to battery performance.
Utility model patent ZL201620845366.3 discloses a kind of On-Line Monitor Device of Gas, can be to electrolyte storage tank
Interior gas is monitored, but the object that is monitored of the utility model is the cumulant of tank inside gas, is not gas
Instantaneous yield, meanwhile, not controlling from the root the gas of generation, when bubbing amount is excessive, both dropped
The low stability of battery system, but there are some potential safety problemss.
Utility model patent ZL201720652309.8 discloses a kind of gas On-line Control device, by being passed through protectiveness
Gas reduces the bubbing concentration in electrolyte storage tank, but the utility model is also without from the root to the gas of generation
Body is controlled, and when bubbing amount is excessive, has not only reduced the stability of battery system, but also there are some potential safety problemss.
Therefore in precise real-time detection flow battery operational process bubbing component and concentration, while will test value reality
When feed back to battery management system, bubbing rate is adjusted in real time, is had emphatically to flow battery system stable operation
Want meaning.The utility model will disclose a kind of flow battery gas online feedback device, the accurate flow battery fortune of monitoring in real time
The component and concentration of bubbing during row, and will test value and feed back to battery management system, shape is run to system in real time
State is adjusted, and fundamentally reduces the generation rate of bubbing, guarantees that flow battery system operates normally.
Utility model content:
In order to improve the stability of flow battery system operation, the purpose of the present invention is to provide a kind of galvanic batteries, and gas is precipitated
Body online feedback device, to be fed back to when accurately monitoring the component and concentration of bubbing in real time, and will test fructufy
Battery management system, to adjust flow battery control strategy in real time.
To achieve the above object, the technical solution adopted in the utility model is as follows, and a kind of flow battery bubbing is online
Real-time Feedback device, described device include flow battery, electrolyte driving device, pipeline, two electrolyte storage tanks, battery managements
System；The battery management system is equipped with charging function module, and the charging function module is for adjusting filling for flow battery (1)
Electric current；The electrolyte driving device is sent electrolyte by electrolyte storage tank to flow battery by pipeline, then passes through pipeline
It is back in same electrolyte storage tank, completes cyclic process；Two electrolyte storage tanks are respectively equipped with an independent gas
Body mechanism for monitoring, the gas-monitoring mechanism include gas flow adjusting means, inertia compressed gas storage device, dry dress
It sets, under test gas detection device, last row absorption plant；The top of electrolyte storage tank is respectively equipped with air inlet, exhaust outlet；It is described lazy
Property compressed gas storage, gas flow adjusting means, electrolyte storage tank air inlet, be successively connected to by the road；The electricity
Exhaust outlet, drying device, under test gas detection device, the last row absorption plant for solving liquid storage tank, are successively connected to by the road；It is described to
Gas-detecting device, flow battery are surveyed respectively with battery management system through circuit connection.Under test gas detection device will collect
Gas content signal be converted to electric signal and feed back to battery management system；Battery management system (examines collected electric signal
Measured value) it is compared with the under test gas content threshold value of setting；When the detected value of under test gas detection device is more than setting gas
When concentration value, battery management system issues charging function module and instructs, and the charging current of flow battery is reduced, to reduce battery
Voltage, to reduce the precipitation rate of under test gas.
Preferably, under test gas detection device is portable gas detector, hand-held gas detecting instrument, stationary gas
One of detector, online gas detecting instrument, and under test gas detection device can will test numerical value Real-time Feedback to electricity
Pond management system realizes that under test gas detection device and battery management system are combined.
Preferably, gas flow adjusting means be target type meter, vortex-shedding meter, V cone flow meter, mass flowmenter,
One of orifice flowmeter, Verabar；
Preferably, inertia compressed gas storage device is spherical tank, horizontal tank body, steel cylinder, the storage of inertia compressed gas
The gas medium stored in device is one of high-purity argon, High Purity Nitrogen, according to the different indifferent gas of under test gas component selection
Body.
Preferably, electrolyte driving device is one of vane pump, positive displacement pump, electromagnetic pump.
The beneficial outcomes of the utility model are as follows:
1, by the utility model, bubbing in precise real-time detection flow battery operational process can be really realized
Component and instantaneous concentration.
2, by the utility model, system can be controlled in real time by gas detection value Real-time Feedback to battery management system
It is adjusted, the generation rate for fundamentally reducing bubbing is realized, to improve system run all right, to flow battery system
System important in inhibiting.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model, in which:
1 flow battery, 2 electrolyte driving devices, 3 pipelines, 4 electrolyte storage tanks, 5 gas flow adjusting means, 6 inertia pressures
Contracting gas storage device, 7 drying devices, 8 gas-detecting devices, 9 absorb last row device, 10 battery management systems, 11 sealing covers.
Fig. 2 is the control operation principle schematic diagram of the utility model
Specific embodiment
The following examples are the further explanations to the utility model, rather than limit the scope of the utility model.
Embodiment
The online Real-time Feedback device of flow battery bubbing, described includes flow battery 1, electrolyte driving device 2, pipe
3, two, road electrolyte storage tank 4, battery management system 10；The electrolyte driving device 2 is by electrolyte by pipeline 3 by being electrolysed
Liquid storage tank 4 is sent to flow battery 1, then is back in same electrolyte storage tank 4 by pipeline 3, and cyclic process is completed；Described two
A electrolyte storage tank 4 is respectively equipped with an independent gas-monitoring mechanism, and the gas-monitoring mechanism includes that gas flow is adjusted
Device 5, inertia compressed gas storage device 6, drying device 7, under test gas detection device 8, last row absorption plant 9；Electrolyte
The top of storage tank defeated 4 is respectively equipped with air inlet, exhaust outlet；The inertia compressed gas storage 6, gas flow adjusting means
5, the air inlet of electrolyte storage tank 4, is successively connected to by the road；Exhaust outlet, drying device 7, the gas to be measured of the electrolyte storage tank 4
Body detection device 8, last row absorption plant 9, are successively connected to by the road；The under test gas detection device 8, flow battery 1 are distinguished
With battery management system 10 through circuit connection.
Before cell operation, positive and negative anodes electrolyte is put into respectively in electrolyte storage tank 4 first, then uses sealing cover 11
Electrolyte storage tank 4 is sealed.In cell operation, a small amount of under test gas generated in battery 1 is defeated simultaneously by pipeline 3
It send into electrolyte storage tank 4；Inert gas in inertia compressed gas storage device 6 successively passes through gas flow adjusting means 5
Enter in electrolyte storage tank 4 with air inlet and the under test gas in electrolyte storage tank 4 is continuously delivered to gas dry dress
It after setting 7, by Pipeline transport under test gas detection device 8, is discharged, is inhaled using last row absorption plant 9 after tested
It after receipts processing, is discharged into atmosphere, while flow battery control plan is adjusted according to the detected value of under test gas detection device 8 in real time
Slightly.
Collected gas content signal is converted to electric signal and feeds back to battery management system by under test gas detection device；
Collected electric signal (detected value) is compared by battery management system with the under test gas content threshold value of setting；When gas to be measured
The detected value of body detection device 8 is more than setting gas concentration value c0When, the adjustment flow battery control in real time of battery management system 10
Strategy, battery management system 10 issues battery system charging function module and instructs, by system charging current by current value I0Drop
Down to I1(I0>I1), to reduce cell voltage, realize the target for reducing gas evolution rate；When system power is I1When, it is to be measured
The detected value of gas-detecting device 8 is still above setting gas concentration value c0When, battery management system 10 continues to adjust liquid stream in real time
Battery control strategy, battery management system 10 issues battery system charging function module and instructs, by system charging current by working as
Preceding value I1It is reduced to I2(I1>I2), to continue to reduce gas evolution rate, until the detected value of under test gas detection device 8 does not surpass
Cross setting gas concentration value c0.When system charging current is reduced to 0A by battery management system 10, just there is no bubbings
Side reaction occur.
By taking sulfuric acid type all-vanadium flow battery system as an example, be connected in feedback device after battery pack is installed, to battery into
Row charge and discharge, single battery voltage window are set as 0.8-1.7V, when battery charges to a certain voltage, negative side under test gas
Monitoring device gas chromatograph monitors hydrogen peak, and hydrogen peak is gradually increased with charging process, illustrate cathode liberation of hydrogen rate by
It is cumulative big.Also, side of the positive electrode under test gas monitoring device gas chromatograph monitors oxygen peak, and oxygen peak with charging process by
It is cumulative big, illustrate that anode analysis oxygen rate is gradually increased.By calibrating gas quantitation curves, can be counted according to component peak area to be measured
The real-time liberation of hydrogen for calculating positive and negative anodes analyses oxygen rate.Gas chromatograph will test value Real-time Feedback to battery management system, electricity simultaneously
Pond management system adjusts control strategy according to presupposed solution in real time, issues and instructs to battery system charging function module, by system
Charging current is by current value I0It is reduced to I1(I0>I1).When system power is I1When, the detected value of gas chromatograph is still above setting
When concentration value, battery management system, which continues to issue battery system charging function module, to be instructed, by system charging current by current
Value I1It is reduced to I2(I1>I2), to continue to reduce gas evolution rate, until the detected value of gas chromatograph is dense no more than setting
Angle value.
By taking sulfate acid-mixed mould assembly all-vanadium flow battery system as an example, it is connected in feedback device after battery pack is installed,
Charge and discharge are carried out to battery, single battery voltage window is set as 0.8-1.9V, when battery charges to a certain voltage, negative side
Under test gas monitoring device hand-held gas detecting instrument monitors hydrogen peak, and hydrogen peak is gradually increased with charging process, explanation
Cathode liberation of hydrogen rate is gradually increased.Also, side of the positive electrode under test gas monitoring device hand-held gas detecting instrument monitors two peaks,
It is oxygen peak and chlorine peak respectively, and oxygen peak and chlorine peak are also gradually increased with charging process, illustrates anode analysis oxygen and analysis chlorine
Rate is also gradually increased.By calibrating gas quantitation curves, the real-time of positive and negative anodes can be calculated according to component peak area to be measured
Liberation of hydrogen, analysis oxygen, the rate for analysing chlorine.Hand-held gas detecting instrument will test value Real-time Feedback to battery management system, battery simultaneously
Management system adjusts control strategy according to presupposed solution in real time, issues and instructs to battery system charging function module, system is filled
Electric current is by current value I0It is reduced to I1(I0>I1).When system power is I1When, the detected value of hand-held gas detecting instrument still above
Set concentration value when, battery management system continue to battery system charging function module issue instruct, by system charging current by
Current value I1It is reduced to I2(I1>I2), to continue to reduce gas evolution rate, until the detected value of hand-held gas detecting instrument is not
More than setting concentration value.
It by taking zinc-bromine flow battery system as an example, is connected in feedback device after battery pack is installed, charge and discharge is carried out to battery
Electricity, single battery voltage window are set as 1-2.2V, when battery charges to a certain voltage, negative side under test gas monitoring device
Stationary gas detector monitors hydrogen peak, and hydrogen peak is gradually increased with charging process, illustrates cathode liberation of hydrogen rate gradually
Increase.Also, side of the positive electrode under test gas monitoring device stationary gas detector monitors oxygen peak, and oxygen peak was with charging
Journey is gradually increased, and illustrates that anode analysis oxygen rate is gradually increased.It, can according to component peak area to be measured by calibrating gas quantitation curves
Oxygen rate is analysed to calculate the real-time liberation of hydrogen of positive and negative anodes.Stationary gas detector will test value Real-time Feedback to cell tube simultaneously
Reason system, battery management system adjust control strategy according to presupposed solution in real time, refer to the sending of battery system charging function module
It enables, by system charging current by current value I0It is reduced to I1(I0>I1).When system power is I1When, stationary gas detector
When detected value is still above setting concentration value, battery management system, which continues to issue battery system charging function module, to be instructed, and will be
Charging current of uniting is by current value I1It is reduced to I2(I1>I2), to continue to reduce gas evolution rate, until stationary gas detects
The detected value of instrument is no more than setting concentration value.
Claims (5)
1. a kind of online Real-time Feedback device of flow battery bubbing, it is characterised in that: described device includes flow battery
(1), electrolyte driving device (2), pipeline (3), two electrolyte storage tanks (4), battery management system (10)；The battery management
System (10) is equipped with charging function module, and the charging function module is used to adjust the charging current of flow battery (1)；
The electrolyte driving device (2) is sent electrolyte by electrolyte storage tank (4) to flow battery (1) by pipeline (3), then
It is back in same electrolyte storage tank (4) by pipeline (3), completes cyclic process；
Two electrolyte storage tanks (4) are respectively equipped with an independent gas-monitoring mechanism, gas-monitoring mechanism packet
Include gas flow adjusting means (5), inertia compressed gas storage device (6), drying device (7), under test gas detection device
(8), last row absorption plant (9)；
The top of electrolyte storage tank (4) is respectively equipped with air inlet, exhaust outlet；
The inertia compressed gas storage device (6), gas flow adjusting means (5), electrolyte storage tank (4) air inlet, according to
It is secondary to be connected to by the road；
The exhaust outlet of the electrolyte storage tank (4), drying device (7), under test gas detection device (8), last row absorption plant
(9), it is successively connected to by the road；
The under test gas detection device (8), flow battery (1) are respectively with battery management system (10) through circuit connection.
2. the online Real-time Feedback device of bubbing according to claim 1, it is characterised in that: under test gas detection device
It (8) is portable gas detector, in hand-held gas detecting instrument, stationary gas detector, online gas detecting instrument
It is a kind of.
3. the online Real-time Feedback device of bubbing according to claim 1, it is characterised in that: gas flow adjusting means
It (5) is target type meter, vortex-shedding meter, V cone flow meter, mass flowmenter, orifice flowmeter, one in Verabar
Kind.
4. the online Real-time Feedback device of bubbing according to claim 1, it is characterised in that: inertia compressed gas storage dress
Setting (6) is spherical tank, horizontal tank body, steel cylinder, and the gas medium stored in inertia compressed gas storage device (6) is high-purity
One of argon, High Purity Nitrogen.
5. the online Real-time Feedback device of bubbing according to claim 1, it is characterised in that: electrolyte driving device (2)
For one of vane pump, positive displacement pump, electromagnetic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821803307.5U CN209119234U (en) | 2018-11-02 | 2018-11-02 | A kind of online Real-time Feedback device of flow battery bubbing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821803307.5U CN209119234U (en) | 2018-11-02 | 2018-11-02 | A kind of online Real-time Feedback device of flow battery bubbing |
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| CN209119234U true CN209119234U (en) | 2019-07-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948553A (en) * | 2020-08-19 | 2020-11-17 | 华霆（合肥）动力技术有限公司 | Battery explosion detection system and method |
| CN111962091A (en) * | 2020-08-20 | 2020-11-20 | 上海电气集团股份有限公司 | Water electrolysis method and device |
-
2018
- 2018-11-02 CN CN201821803307.5U patent/CN209119234U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948553A (en) * | 2020-08-19 | 2020-11-17 | 华霆（合肥）动力技术有限公司 | Battery explosion detection system and method |
| CN111948553B (en) * | 2020-08-19 | 2023-05-23 | 华霆（合肥）动力技术有限公司 | Battery explosion detection system and method |
| CN111962091A (en) * | 2020-08-20 | 2020-11-20 | 上海电气集团股份有限公司 | Water electrolysis method and device |
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