CN206864551U - All-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device - Google Patents
All-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device Download PDFInfo
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- CN206864551U CN206864551U CN201720652309.8U CN201720652309U CN206864551U CN 206864551 U CN206864551 U CN 206864551U CN 201720652309 U CN201720652309 U CN 201720652309U CN 206864551 U CN206864551 U CN 206864551U
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Abstract
It the utility model is related to battery energy storage technical field,Refer in particular to all-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device,Gas-detecting device is configured in fluid reservoir,For detecting gas content in fluid reservoir,And the signal collected is converted into electric signal transmission to control system,Compared with the gas content threshold value of setting,When gas content exceedes default threshold value,Intake valve and air outlet valve are opened by control system,Then inert gas is passed through into fluid reservoir to be protected,Until control system collect gas content in fluid reservoir less than setting threshold value when,Close intake valve and air outlet valve,Improve the energy efficiency and security of all-vanadium flow battery,Extend service life,Pass through on-line control system,Automatically controlling for intake valve and air outlet valve can be realized,Accurate control inert gas dosage,Avoid gas waste,So as to reduce the O＆M cost in all-vanadium flow battery power station,Improve the economy of energy-accumulating power station.
Description
Technical field
Battery energy storage technical field is the utility model is related to, it is online to refer in particular to all-vanadium flow battery energy-accumulating power station fluid reservoir gas
Control device.
Background technology
All-vanadium flow battery is a kind of novel high-capacity energy-storage battery, has that energy conversion efficiency is high, safe for operation, power
With capacity can independent design, service life is long the advantages that, can be as the supplement of power network water-storage peak regulation energy storage device, in new energy
The fields such as source access, intelligent grid construction have broad application prospects.
All-vanadium flow battery is using the vanadium ion solution of different valence state as positive pole and the active material of negative pole, is stored
In respective electrolyte storage tank.Anode electrolyte is V (V) and V (IV) sulfuric acid solution, and electrolyte liquid is V (III) and V
(II) sulfuric acid solution.In cell operation, the air-sensitive ion in electrolyte is easily oxidized, and causes positive and negative electrode electric
The synthesis valence state rise of liquid vanadium ion is solved, declines battery charge capacity, battery cycle life shortens.
Patent CN101989660B discloses a kind of exhaust system of closed electrolyte storage tank of vanadium ion redox flow battery
System, the system link up closed positive and negative electrode electrolyte fluid reservoir top air chamber with pipeline, make its pressure balance.Among pipeline
Pressure gauge and gas release valve are set, when fluid reservoir top air chamber pressure exceedes setting value, gas release valve can automatically open up, to
Atmospheric exhaust, the pressure of the top air chamber of closed electrolytic liquid fluid reservoir is no longer raised, ensure that electrolyte fluid reservoir safely may be used
Worked by ground, but with the progress of charge and discharge process, caused O in fluid reservoir2、H2And CO2Can be with electrolyte Deng sensitive gas
Flow circuit, it is gathered in the air chamber of fluid reservoir top, by air-sensitive ionic oxide formation in electrolyte, and uses closed liquid storage
Tank, the continuous rise of top air chamber pressure can have a negative impact to tank intensity.
Patent CN105428680A discloses a kind of electrolyte of vanadium redox battery storage device, and the device includes：Anode electrolyte
Holding vessel and electrolyte liquid fluid reservoir, an inert gas filled air-pressure balancing device in inside, air-pressure balancing device connection
An air pressure is set to sense controlling switch, the good effect of the utility model：Both positive and negative polarity is balanced with inert gas bascule
Air pressure between electrolyte, meanwhile, the vanadium ion in inert gas shielding electrolyte is not oxidized, but due to lacking to indifferent gas
The Precise control of body, the problem of a large amount of insured's gases waste be present, and in the process of running, O be present2、H2And CO2Etc. quick
Feel gas evolution, it can not be excluded from fluid reservoir.
Patent CN206002504U discloses a kind of gas on-line measuring device for all-vanadium flow battery fluid reservoir, leads to
The gas on-line checking mechanism being connected on fluid reservoir is crossed, inert protective gas can be passed through drives the process of air in fluid reservoir
In, gas in tank is detected and analyzed, the accurate dosage for controlling protective gas, avoids gas from wasting.But the patent provides
Method be manually control fluid reservoir on valve opening and closing be exhausted, in Large Copacity all-vanadium flow battery energy-accumulating power station application
In, because fluid reservoir quantity is more, it is difficult to realize the manual control to each fluid reservoir in power station.In actual all-vanadium flow battery
In energy-accumulating power station application operating mode, or inert gas is used to protect fluid reservoir electrolyte, but will be to inert gas
Dosage realizes that what is become more meticulous automatically controls, therefore also needs to advanced gas On-Line Control Method and device.
Utility model content
For problem above, the utility model provides all-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control dress
Put, using sensitive gas content in gas-detecting device on-line checking fluid reservoir, and intake valve is realized by control system and gone out
Air valve automatically controls, accurate to control protective gas dosage, avoids inert gas from wasting, and can preferably protect electrolyte, carries
The energy efficiency of high all-vanadium flow battery, increases the service life, so as to reduce the O＆M cost of all-vanadium flow battery energy-accumulating power station,
Improve performance driving economy.
To achieve these goals, the technical solution adopted in the utility model is as follows：
All-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device, including control system, inert gas gas station,
Positive pole fluid reservoir, negative pole fluid reservoir, positive gas detection means and negative gas detection means, positive pole fluid reservoir and negative pole liquid storage
It is respectively equipped with air inlet pipeline and outlet pipe on tank, air inlet pipeline is connected to inert gas gas station, the air inlet on positive pole fluid reservoir
Pipeline is provided with positive pole intake valve, and the air inlet pipeline on negative pole fluid reservoir is provided with negative pole intake valve, going out on positive pole fluid reservoir
Air pipe is provided with positive pole air outlet valve, and the outlet pipe on negative pole fluid reservoir is provided with negative pole air outlet valve, positive gas detection dress
To put and be correspondingly arranged with positive pole fluid reservoir, negative gas detection means is correspondingly arranged with negative pole fluid reservoir, positive gas detection means,
Negative gas detection means, positive pole intake valve, negative pole intake valve, positive pole air outlet valve and negative pole air outlet valve are connected to control system
System.
Furthermore, the positive gas detection means is installed on positive pole liquid storage top tank structure, negative gas detection dress
Put and be installed on negative pole liquid storage top tank structure.
Furthermore, it is single to include oxygen content detection with negative gas detection means for the positive gas detection means
Member, hydrogen content detection unit and carbon dioxide content detection unit.
Furthermore, the positive pole intake valve, negative pole intake valve, positive pole air outlet valve and negative pole air outlet valve are using electronic
Valve.
Furthermore, the inert gas at the inert gas gas station uses high pure nitrogen or high-purity argon gas or high-purity neon
Or the mixed gas of high pure nitrogen, high-purity argon gas and high-purity neon is used as protection gas.
The control method of all-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device, step are as follows：
Step 1, using positive gas detection means and negative gas detection means on-line checking positive pole fluid reservoir and negative pole
Sensitive gas content in fluid reservoir；
Step 2, positive gas detection means are converted to the gas content signal collected with negative gas detection means
Electric signal transmission is to control system；
Poly- three are walked, control system is by the electric signal collected compared with the sensitive gas content threshold value set；
Step 4, when sensitive gas content exceedes default threshold value, control system to positive pole intake valve, negative pole intake valve,
Positive pole air outlet valve sends open command with negative pole air outlet valve；
Step 5, inert gas gas station are passed through inert gas by air inlet pipeline into positive pole fluid reservoir and negative pole fluid reservoir
Drive sensitive gas in tank；
Step 6, until control system collects positive pole fluid reservoir with sensitive gas content in negative pole fluid reservoir less than setting
Threshold value when, control system sends out code to positive pole intake valve, negative pole intake valve, positive pole air outlet valve and negative pole air outlet valve；
Step 7, successively circulation step one to step 6.
The utility model beneficial effect：
The utility model obtains fluid reservoir in real time using sensitive gas content in gas-detecting device on-line checking fluid reservoir
Interior gaseous state information, automatically controlling for intake valve and air outlet valve is realized by control system, it is accurate to control inert gas dosage,
Gas waste is avoided, while can preferably protect the electrolyte in fluid reservoir, so as to improve the energy dose-effect of all-vanadium flow battery
Rate, increase the service life, reduce the O＆M cost of all-vanadium flow battery energy-accumulating power station, improve performance driving economy.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is utility model works principle schematic.
1. control system；2. inert gas gas station；3. positive pole fluid reservoir；4. negative pole fluid reservoir；5. positive gas detection dress
Put；6. negative gas detection means；7. positive pole intake valve；8. negative pole intake valve；9. positive pole air outlet valve；10. negative pole air outlet valve；
11. air inlet pipeline；12. outlet pipe.
Embodiment
The technical solution of the utility model is illustrated with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, all-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device described in the utility model, bag
Include control system 1, inert gas gas station 2, positive pole fluid reservoir 3, negative pole fluid reservoir 4, positive gas detection means 5 and negative gas
Detection means 6, positive pole fluid reservoir 3 on negative pole fluid reservoir 4 with being respectively equipped with air inlet pipeline 11 and outlet pipe 12, air inlet pipeline 11
It is connected to inert gas gas station 2, the air inlet pipeline 11 on positive pole fluid reservoir 3 is provided with positive pole intake valve 7, on negative pole fluid reservoir 4
Air inlet pipeline 11 be provided with negative pole intake valve 8, the outlet pipe 12 on positive pole fluid reservoir 3 is provided with positive pole air outlet valve 9, negative pole
Outlet pipe 12 on fluid reservoir 4 is provided with negative pole air outlet valve 10, and positive gas detection means 5 is corresponding with positive pole fluid reservoir 3 to be set
Put, negative gas detection means 6 is correspondingly arranged with negative pole fluid reservoir 4, positive gas detection means 5, negative gas detection means
6th, positive pole intake valve 7, negative pole intake valve 8, positive pole air outlet valve 9 and negative pole air outlet valve 10 are connected to control system 1.Above institute
State and form the utility model basic structure.
Structure setting as the utility model use, using positive gas detection means 5 and negative gas detection means 6
On-line checking positive pole fluid reservoir 3 and the sensitive gas content in negative pole fluid reservoir 4, positive pole fluid reservoir 3 is obtained in real time and is stored up with negative pole
Gaseous state information in flow container 4, realized by control system 1 to positive pole intake valve 7, negative pole intake valve 8, positive pole air outlet valve 9
It is accurate to control inert gas dosage with automatically controlling for negative pole air outlet valve 10, gas waste is avoided, while can preferably protect
Positive pole fluid reservoir 3 and the electrolyte in negative pole fluid reservoir 4, so as to improve the energy efficiency of all-vanadium flow battery, extension uses the longevity
Life, the O＆M cost of all-vanadium flow battery energy-accumulating power station is reduced, improve performance driving economy.Its operation principle：In all-vanadium flow electricity
Before the energy-accumulating power station work of pond, positive pole intake valve 7, negative pole intake valve 8, positive pole air outlet valve 9 are opened by control system 1 and gone out with negative pole
Air valve 10, then inert gas gas station 2 inert gas is passed through to positive pole fluid reservoir 3 and negative pole fluid reservoir 4 by air inlet pipeline 11
Protected, drive positive pole fluid reservoir 3 and the air in negative pole fluid reservoir 4, pass through positive gas detection means 5 and negative gas
Detection means 6 detects positive pole fluid reservoir 3 and the sensitive gas content in negative pole fluid reservoir 4 in real time, and the gas detected is contained
Amount signal is converted to electric signal transmission and gives control system 1 (as shown in Figure 2), and control system 1 is by the electric signal received and setting
Sensitive gas content threshold value be compared, when gas content is less than threshold value, close positive pole intake valve 7, negative pole intake valve 8,
Positive pole air outlet valve 9 and negative pole air outlet valve 10, start all-vanadium flow battery, in all-vanadium flow battery running, pass through positive pole
Gas-detecting device 5 detects positive pole fluid reservoir 3 and the sensitive gas in negative pole fluid reservoir 4 in real time with negative gas detection means 6
Content, when the positive pole fluid reservoir 3 that control system 1 collects and threshold of the sensitive gas content in negative pole fluid reservoir 4 higher than setting
During value, positive pole intake valve 7, negative pole intake valve 8, positive pole air outlet valve 9 and negative pole air outlet valve 10 are reopened, to positive pole fluid reservoir 3
Protected with being passed through inert gas in negative pole fluid reservoir 4, until the sensitive gas content that control system 1 collects is less than setting
Threshold value when close positive pole intake valve 7, negative pole intake valve 8, positive pole air outlet valve 9 and negative pole air outlet valve 10.
More specifically, the positive gas detection means 5 is installed on the inwall of positive pole fluid reservoir 3, negative gas detection
Device 6 is installed on the inwall of negative pole fluid reservoir 4.Using such structure setting, ingenious can be stored up using positive pole fluid reservoir 3 and negative pole
The inner space of flow container 4, reduce energy-storage system floor space.
More specifically, the positive gas detection means 5 includes oxygen content detection with negative gas detection means 6
Unit, hydrogen content detection unit and carbon dioxide content detection unit.Using such structure setting, examined by positive gas
Survey device 5 and detect positive pole fluid reservoir 3 and the oxygen content inside negative pole fluid reservoir 4, hydrogen content with negative gas detection means 6
And carbon dioxide content.
More specifically, the positive pole intake valve 7, negative pole intake valve 8, positive pole air outlet valve 9 and negative pole air outlet valve 10 are adopted
Set with motor-driven valve.Using such structure setting, positive pole intake valve 7, negative pole intake valve 8, positive pole air outlet valve 9 and negative pole outlet
Valve 10 can receive the electric signal that control system 1 is sent, and can complete corresponding action command.
More specifically, the inert gas at the inert gas gas station 2 uses high pure nitrogen or high-purity argon gas or high-purity neon
Gas or high pure nitrogen, the mixed gas of high-purity argon gas and high-purity neon are used as protection gas.
The control method of all-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device, step are as follows：
Step 1, using positive gas detection means 5 and the on-line checking positive pole fluid reservoir 3 of negative gas detection means 6 with
Sensitive gas content in negative pole fluid reservoir 4；
Step 2, positive gas detection means 5 change the gas content signal collected with negative gas detection means 6
For electric signal transmission to control system 1；
Poly- three are walked, control system 1 is by the electric signal collected compared with the sensitive gas content threshold value set；
Step 4, when sensitive gas content exceedes default threshold value, control system 1 is to positive pole intake valve 7, negative pole intake valve
8th, positive pole air outlet valve 9 sends open command with negative pole air outlet valve 10；
Step 5, inert gas gas station 2 are lazy with being passed through in negative pole fluid reservoir 4 to positive pole fluid reservoir 3 by air inlet pipeline 11
Property gas drives sensitive gas in tank；
Step 6, until control system 1 collects positive pole fluid reservoir 3 and is less than with sensitive gas content in negative pole fluid reservoir 4
During the threshold value of setting, control system 1 is sent to positive pole intake valve 7, negative pole intake valve 8, positive pole air outlet valve 9 and negative pole air outlet valve 10
Out code；
Step 7, successively circulation step one to step 6.
This is described with new embodiment above in association with accompanying drawing, but the utility model be not limited to it is above-mentioned
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, the ordinary skill of this area
Personnel are under enlightenment of the present utility model, in the case of the utility model aims and scope of the claimed protection are not departed from,
Many forms can be also made, these are belonged within the scope of protection of the utility model.
Claims (5)
1. all-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device, it is characterised in that：Including control system (1),
Inert gas gas station (2), positive pole fluid reservoir (3), negative pole fluid reservoir (4), positive gas detection means (5) and negative gas detect
Air inlet pipeline (11) and outlet pipe (12) are respectively equipped with device (6), the positive pole fluid reservoir (3) and negative pole fluid reservoir (4),
The air inlet pipeline (11) is connected to inert gas gas station (2), and the air inlet pipeline (11) on the positive pole fluid reservoir (3) is provided with
Positive pole intake valve (7), the air inlet pipeline (11) on the negative pole fluid reservoir (4) are provided with negative pole intake valve (8), the positive pole storage
Outlet pipe (12) on flow container (3) is provided with positive pole air outlet valve (9), the outlet pipe (12) on the negative pole fluid reservoir (4)
It is provided with negative pole air outlet valve (10)；
The positive gas detection means (5) is correspondingly arranged with positive pole fluid reservoir (3), the negative gas detection means (6) with
Negative pole fluid reservoir (4) is correspondingly arranged, the positive gas detection means (5), negative gas detection means (6), positive pole intake valve
(7), negative pole intake valve (8), positive pole air outlet valve (9) and negative pole air outlet valve (10) are connected to control system (1).
2. all-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device according to claim 1, its feature exist
In：The positive gas detection means (5) is installed on positive pole fluid reservoir (3) inwall, negative gas detection means (6) peace
Loaded on negative pole fluid reservoir (4) inwall.
3. all-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device according to claim 1, its feature exist
In：The positive gas detection means (5) includes oxygen content detection unit with negative gas detection means (6), hydrogen contains
Amount detection unit and carbon dioxide content detection unit.
4. all-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device according to claim 1, its feature exist
In：The positive pole intake valve (7), negative pole intake valve (8), positive pole air outlet valve (9) and negative pole air outlet valve (10) use motor-driven valve.
5. all-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device according to claim 1, its feature exist
In：The inert gas of the inert gas gas station (2) uses high pure nitrogen or high-purity argon gas or high-purity neon or high pure nitrogen, height
The mixed gas of pure argon and high-purity neon is used as protection gas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720652309.8U CN206864551U (en) | 2017-06-07 | 2017-06-07 | All-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device |
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| CN201720652309.8U CN206864551U (en) | 2017-06-07 | 2017-06-07 | All-vanadium flow battery energy-accumulating power station fluid reservoir gas On-line Control device |
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| CN206864551U true CN206864551U (en) | 2018-01-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492145A (en) * | 2019-08-12 | 2019-11-22 | 中盐金坛盐化有限责任公司 | Organic water phase flow battery based on salt cave |
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2017
- 2017-06-07 CN CN201720652309.8U patent/CN206864551U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492145A (en) * | 2019-08-12 | 2019-11-22 | 中盐金坛盐化有限责任公司 | Organic water phase flow battery based on salt cave |
| CN110492145B (en) * | 2019-08-12 | 2021-02-19 | 中盐金坛盐化有限责任公司 | Organic aqueous phase flow battery based on salt cavern |
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