CN110048147A - A kind of all-vanadium flow battery pipe-line system having mixed liquid function - Google Patents
A kind of all-vanadium flow battery pipe-line system having mixed liquid function Download PDFInfo
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- CN110048147A CN110048147A CN201910203007.6A CN201910203007A CN110048147A CN 110048147 A CN110048147 A CN 110048147A CN 201910203007 A CN201910203007 A CN 201910203007A CN 110048147 A CN110048147 A CN 110048147A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04276—Arrangements for managing the electrolyte stream, e.g. heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
- H01M8/184—Regeneration by electrochemical means
- H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
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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 present invention provides a kind of all-vanadium flow battery pipe-line system for having mixed liquid function, comprising: positive fluid reservoir, cathode fluid reservoir, the first mixed liquid pipeline and the second mixed liquid pipeline；The first mixed liquid pipeline includes positive liquid outlet pipe (3), anode electrolyte delivery pump (5), liquor charging valve (29), the cathode back liquid pipeline (14) for going back to fluid valve (33) and being arranged in the cathode fluid reservoir；The second mixed liquid pipeline includes cathode liquid outlet pipe (4), electrolyte liquid delivery pump (6), liquor charging valve (30), the positive back liquid pipeline (13) for going back to fluid valve (34) and being arranged in the positive fluid reservoir.The pipe-line system enables to the liquid level difference in the fluid reservoir of positive and negative anodes electrolyte substantially zeroed, ensure that the capacity of redox flow battery energy storage system is maintained at stable state for a long time, avoids the defect for threatening system safety operation.
Description
Technical field
The present invention relates to flow battery energy storage technical fields, and in particular to a kind of flow battery pipeline for having mixed liquid function
System.
Background technique
Flow battery is powerful one of the environmentally protective battery of current growth momentum, have the high-power, long-life, can be deep
Spend the clear superiorities such as high current density charge and discharge, it has also become one of main commercialization developing direction in battery system, wind-powered electricity generation,
There is extremely wide application prospect in the fields such as photovoltaic power generation, peak load regulation network.
Compared with other non-flow batteries, significant difference is flow battery: flow battery needs to be respectively adopted positive and negative
Pole electrolyte magnetic drive circulating pump is by the electrolyte in positive and negative anodes electrolyte fluid reservoir along Pipeline transport to pile to generate electricity
Can, positive and negative anodes electrolyte flows through after pile again along Pipeline transport to positive and negative anodes electrolyte fluid reservoir.
Currently, at runtime, there is the phenomenon that liquid level is inconsistent in positive and negative electrode electrolyte fluid reservoir in flow battery.
Biggish this liquid level difference causes redox flow battery energy storage system capacity to decline, or even threatens system safety operation.
Summary of the invention
The present invention provides a kind of all-vanadium flow battery pipe-line systems for having mixed liquid function, to overcome current flow battery
The problem of energy storage system capacity declines caused by liquid level difference is excessive in the fluid reservoir of positive and negative electrolyte when operation.
The present invention provides a kind of all-vanadium flow battery pipe-line systems for having mixed liquid function, comprising:
Positive fluid reservoir, cathode fluid reservoir, the first mixed liquid pipeline and the second mixed liquid pipeline；
The first mixed liquid pipeline includes positive liquid outlet pipe 3, anode electrolyte delivery pump 5, liquor charging valve 29, returns fluid valve
33 and the cathode back liquid pipeline 14 that is arranged in the cathode fluid reservoir；
The second mixed liquid pipeline includes cathode liquid outlet pipe 4, electrolyte liquid delivery pump 6, liquor charging valve 30, returns fluid valve
34 and the positive back liquid pipeline 13 that is arranged in the anode fluid reservoir；Wherein,
When mixed liquid, anode electrolyte is flowed out from the anode fluid reservoir, followed by anode electrolyte delivery pump 5, liquor charging valve
Door 29 returns fluid valve 33 and cathode back liquid pipeline 14 into cathode fluid reservoir；
When mixed liquid, electrolyte liquid is flowed out from the cathode fluid reservoir, followed by electrolyte liquid delivery pump 6, liquor charging valve
Door 30 returns fluid valve 34 and positive back liquid pipeline 13 into positive fluid reservoir.
Specifically, in the system,
The opening and closing of the liquor charging valve 29 is the independently-controlled；
The opening and closing of the liquor charging valve 30 is the independently-controlled；
The opening and closing of this time fluid valve 33 is the independently-controlled；
The opening and closing of this time fluid valve 34 is the independently-controlled；
The opening and closing of the anode electrolyte delivery pump 5 is the independently-controlled；
The opening and closing of the electrolyte liquid delivery pump 6 is the independently-controlled；
Or
The opening and closing of the liquor charging valve 29 and the opening and closing linkage of the liquor charging valve 30 are controlled；
The opening and closing of this time fluid valve 33 and the opening and closing linkage of this time fluid valve 34 are controlled；
The opening and closing of the anode electrolyte delivery pump 5 and the opening and closing linkage of the electrolyte liquid delivery pump 6 are controlled.
Specifically, in the system, further includes:
Bypass pile, the first valence state detection pipeline and the second valence state detection pipeline；
First state detection pipeline includes bypass pile liquid flowing valve 31, and along the flow direction of anode electrolyte, this is sent
The first branch point A1 is provided on pipeline after fluid valve 29, the bypass pile liquid flowing valve 31 and this time fluid valve 33 are distinguished
It is arranged in from two laterals that first branch point A1 is separated；
When valence state detects, this time fluid valve 33 is in off state, and anode electrolyte is followed by anode electrolyte delivery pump
5, liquor charging valve 29, the first branch point A1, bypass pile liquid flowing valve 31 enter the bypass pile；
The first valence state detection pipeline further includes bypass pile liquid valve door 36；
The anode back liquid pipeline 13 includes the second branch point A2, which divides with this time fluid valve 34
It is not arranged in from two laterals that second branch point A2 is separated；
When valence state detects, this time fluid valve 34 is in off state, and the anode electrolyte flowed out from the bypass pile successively flows
Enter positive fluid reservoir through bypass pile liquid valve door 36, the second branch point A2, positive back liquid pipeline 13；
Second valence state detection pipeline includes that bypass pile liquid flowing valve 32 should along the flow direction of anode electrolyte
Third branch point A3 is provided on pipeline after liquor charging valve 30, the bypass pile liquid flowing valve 32 and this time fluid valve 34 divide
It is not arranged in from two laterals that third branch point A3 is separated；
When valence state detects, this time fluid valve 34 is in off state, and electrolyte liquid is followed by electrolyte liquid delivery pump
6, liquor charging valve 30, third branch point A3, bypass pile liquid flowing valve 32 enter the bypass pile；
The second valence state detection pipeline further includes bypass pile liquid valve door 35；
The cathode back liquid pipeline 14 includes the 4th branch point A4, which divides with this time fluid valve 33
It is arranged on the two articles of laterals separated from the 4th branch point A4；
When valence state detects, this time fluid valve 33 is in off state, and the electrolyte liquid flowed out from the bypass pile successively flows
Enter cathode fluid reservoir through bypass pile liquid valve door 35, the 4th branch point A4, cathode back liquid pipeline 14.
Specifically, in the system,
The opening and closing of the anode electrolyte delivery pump 5 and the opening and closing linkage of the electrolyte liquid delivery pump 6 are controlled；
The opening and closing of the liquor charging valve 29 and the opening and closing linkage of the liquor charging valve 30 are controlled；
It is the opening and closing of the bypass pile liquid flowing valve 32, controlled with the opening and closing of the bypass pile liquid flowing valve 31 linkage；
It is the opening and closing of the bypass pile liquid valve door 35, controlled with the opening and closing of the bypass pile liquid valve door 36 linkage.
The present invention provides the flow battery pipe-line system for having mixed liquid function, the liquid stream of emerged in operation can be overcome
The inconsistent problem of liquid level in battery plus-negative plate electrolyte fluid reservoir, so that the liquid level in the fluid reservoir of positive and negative anodes electrolyte
Difference is substantially zeroed, ensure that the capacity of redox flow battery energy storage system is maintained at stable state for a long time, avoids threat system peace
The defect of row for the national games.
Detailed description of the invention
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by:
Fig. 1 is the topology diagram of redox flow battery energy storage system in the present embodiment；
Anode electrolyte access when Fig. 2 is redox flow battery energy storage system normal operating conditions in the present embodiment；
Electrolyte liquid access when Fig. 3 is redox flow battery energy storage system normal operating conditions in the present embodiment；
Anode electrolyte access when Fig. 4 is redox flow battery energy storage system electrolyte valence state detecting state in the present embodiment；
Electrolyte liquid access when Fig. 5 is redox flow battery energy storage system electrolyte valence state detecting state in the present embodiment；
Anode electrolyte access when Fig. 6 is redox flow battery energy storage system electrolyte liquid inspection state in the present embodiment；
Electrolyte liquid access when Fig. 7 is redox flow battery energy storage system electrolyte liquid inspection state in the present embodiment.
Specific embodiment
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose
The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose
The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
When operating normally, electrolyte is always flowing flow battery；It therefore, may after operation a period of time
The inconsistent this liquid level difference of liquid level in positive and negative electrode electrolyte fluid reservoir occur will lead under redox flow battery energy storage system capacity
Drop, or even threaten system safety operation.
As shown in Figure 6 and Figure 7, the all-vanadium flow battery pipe-line system for having mixed liquid function of the embodiment of the present invention, comprising:
Positive fluid reservoir, cathode fluid reservoir, the first mixed liquid pipeline and the second mixed liquid pipeline；
The first mixed liquid pipeline includes positive liquid outlet pipe 3, anode electrolyte delivery pump 5, liquor charging valve 29, returns fluid valve
33 and the cathode back liquid pipeline 14 that is arranged in the cathode fluid reservoir；
The second mixed liquid pipeline includes cathode liquid outlet pipe 4, electrolyte liquid delivery pump 6, liquor charging valve 30, returns fluid valve
34 and the positive back liquid pipeline 13 that is arranged in the anode fluid reservoir；Wherein,
When mixed liquid, anode electrolyte is flowed out from the anode fluid reservoir, followed by anode electrolyte delivery pump 5, liquor charging valve
Door 29 returns fluid valve 33 and cathode back liquid pipeline 14 into cathode fluid reservoir；
When mixed liquid, electrolyte liquid is flowed out from the cathode fluid reservoir, followed by electrolyte liquid delivery pump 6, liquor charging valve
Door 30 returns fluid valve 34 and positive back liquid pipeline 13 into positive fluid reservoir.
Specifically, in the system, when adjusting liquid level difference,
The opening and closing of the liquor charging valve 29 is the independently-controlled；
The opening and closing of the liquor charging valve 30 is the independently-controlled；
The opening and closing of this time fluid valve 33 is the independently-controlled；
The opening and closing of this time fluid valve 34 is the independently-controlled；
The opening and closing of the anode electrolyte delivery pump 5 is the independently-controlled；
The opening and closing of the electrolyte liquid delivery pump 6 is the independently-controlled.
So as to individually deploy consistent electricity from positive fluid reservoir to cathode fluid reservoir conveying price according to level condition
Solve liquid.
Specifically, in the system, in mixed liquid, namely making the electrolyte in positive fluid reservoir and cathode fluid reservoir
During price allotment is consistent, the opening and closing of the liquor charging valve 29 and the opening and closing linkage of the liquor charging valve 30 are controlled；
The opening and closing of this time fluid valve 33 and the opening and closing linkage of this time fluid valve 34 are controlled；
The opening and closing of the anode electrolyte delivery pump 5 and the opening and closing linkage of the electrolyte liquid delivery pump 6 are controlled.
So as to improve the speed of mixed liquid, so that the price of electrolyte is formulated to unanimously in a short time.
Specifically, in the system, further includes:
Bypass pile, the first valence state detection pipeline and the second valence state detection pipeline；
As shown in figure 4, the first state detection pipeline includes bypass pile liquid flowing valve 31 in the side of bypass pile,
It is provided with the first branch point A1 along the pipeline after the flow direction of anode electrolyte, the liquor charging valve 29, the bypass pile
Liquid flowing valve 31 and this time fluid valve 33 are separately positioned on from two laterals that first branch point A1 is separated；
When valence state detects, this time fluid valve 33 is in off state, and anode electrolyte is followed by anode electrolyte delivery pump
5, liquor charging valve 29, the first branch point A1, bypass pile liquid flowing valve 31 enter the bypass pile；
In the other side of bypass pile, which further includes bypass pile liquid valve door 36；
The anode back liquid pipeline 13 includes the second branch point A2, which divides with this time fluid valve 34
It is not arranged in from two laterals that second branch point A2 is separated；
When valence state detects, this time fluid valve 34 is in off state, and the anode electrolyte flowed out from the bypass pile successively flows
Enter positive fluid reservoir through bypass pile liquid valve door 36, the second branch point A2, positive back liquid pipeline 13；
As shown in figure 5, the second valence state detection pipeline includes bypass pile liquid flowing valve in the side of bypass pile
32, third branch point A3, bypass electricity are provided with along the pipeline after the flow direction of anode electrolyte, the liquor charging valve 30
Heap liquid flowing valve 32 and this time fluid valve 34 are separately positioned on from two laterals that third branch point A3 is separated；
When valence state detects, this time fluid valve 34 is in off state, and electrolyte liquid is followed by electrolyte liquid delivery pump
6, liquor charging valve 30, third branch point A3, bypass pile liquid flowing valve 32 enter the bypass pile；
In the other side of bypass pile, which further includes bypass pile liquid valve door 35；
The cathode back liquid pipeline 14 includes the 4th branch point A4, which divides with this time fluid valve 33
It is arranged on the two articles of laterals separated from the 4th branch point A4；
When valence state detects, this time fluid valve 33 is in off state, and the electrolyte liquid flowed out from the bypass pile successively flows
Enter cathode fluid reservoir through bypass pile liquid valve door 35, the 4th branch point A4, cathode back liquid pipeline 14.
Above-mentioned branch point is set in pipeline, realizes the determining branch of a plurality of flow direction, improves the utilization rate of pipeline, energy
Pipeline total length is enough reduced, the linear loss of electrolyte is reduced, the energy efficiency of pipeline offer is improved, but also pipe-line system
It is more compact in space.
First valence state detection pipeline and the second valence state detection pipeline return electrolyte after bypassing pile
The fluid reservoir initially flowed out is returned, guarantees that the electrochemical reaction in bypass pile being capable of true work of the simulation in main pile
Condition realizes price detection with lesser shunt location, and accuracy is high, and speed is fast.
It is construed as, in the first valence state detection pipeline and the second valence state detection pipeline,
The opening and closing of the anode electrolyte delivery pump 5 and the opening and closing linkage of the electrolyte liquid delivery pump 6 are controlled；
The opening and closing of the liquor charging valve 29 and the opening and closing linkage of the liquor charging valve 30 are controlled；
It is the opening and closing of the bypass pile liquid flowing valve 32, controlled with the opening and closing of the bypass pile liquid flowing valve 31 linkage；
It is the opening and closing of the bypass pile liquid valve door 35, controlled with the opening and closing of the bypass pile liquid valve door 36 linkage.
Specifically, in the system, further includes:
Main pile, anode electrolyte charge and discharge pipeline and electrolyte liquid charge and discharge pipeline；
As shown in Fig. 2, the anode electrolyte charge and discharge pipeline includes main pile liquid flowing valve 25；
In the side of main pile, which includes quintafurcation point A5, the liquor charging valve 29 and the main pile
Liquid flowing valve 25 is separately positioned on from two articles of laterals that quintafurcation point A5 is separated；
When charge and discharge, this time fluid valve 33 is in off state, which is in off state, and anode electrolyte is successively
Flow through quintafurcation point A5, the main pile liquid flowing valve 25 enters the main pile；
In the other side of main pile, which further includes main pile liquid valve door 28；
It include the 6th branch point A6 on lateral between the second branch point A2 and the bypass pile liquid valve door 36；
The Liang Tiao branch separated from the 6th branch point A6 is arranged in the bypass pile liquid valve door 36 in the main pile liquid valve door 28
On pipeline；
When charge and discharge, this time fluid valve 34 is in off state, which closes, from the main pile stream
Anode electrolyte out returns liquid followed by main pile liquid valve door 28, the 6th branch point A6, second branch point A2, anode
Pipeline 13 enters positive fluid reservoir；
As shown in figure 3, the electrolyte liquid charge and discharge pipeline includes main pile liquid flowing valve 26；
In the side of main pile, which includes the 7th branch point A7, the liquor charging valve 30 and the main pile
Liquid flowing valve 26 is separately positioned on the two articles of laterals separated from the 7th branch point A7；
When charge and discharge, this time fluid valve 34 is in off state, which is in off state, and anode electrolyte is successively
Flow through the 7th branch point A7, the main pile liquid flowing valve 26 enters the main pile；
In the other side of main pile, which further includes main pile liquid valve door 27；
It include the 8th branch point A8 on lateral between 4th branch point A4 and the bypass pile liquid valve door 35；
The Liang Tiao branch separated from the 8th branch point A8 is arranged in the bypass pile liquid valve door 35 in the main pile liquid valve door 27
On pipeline；
When charge and discharge, this time fluid valve 33 is in off state, which closes, from the main pile stream
Electrolyte liquid out returns liquid followed by main pile liquid valve door 27, the 8th branch point A8, the 4th branch point A4, cathode
Pipeline 14 enters cathode fluid reservoir.
Anode electrolyte charge and discharge pipeline and electrolyte liquid charge and discharge pipeline make electrolyte without bypass pile
And corresponding fluid reservoir is flowed into after main pile, and complete electrochemical reaction in main pile.
Above-mentioned branch point is set in pipeline, realizes the determining branch of a plurality of flow direction, improves the utilization rate of pipeline, energy
Pipeline total length is enough reduced, the linear loss of electrolyte is reduced, the energy efficiency of pipeline offer is improved, but also pipe-line system
It is more compact in space.
Specifically, in anode electrolyte charge and discharge pipeline and electrolyte liquid charge and discharge pipeline,
The opening and closing of the anode electrolyte delivery pump 5 and the opening and closing linkage of the electrolyte liquid delivery pump 6 are controlled；
The opening and closing of the main pile liquid flowing valve 26 and the opening and closing linkage of main pile liquid flowing valve 25 are controlled；
It is the opening and closing of the main pile liquid valve door 27, controlled with the opening and closing of the main pile liquid valve door 28 linkage.
Anode electrolyte charge and discharge pipeline and electrolyte liquid charge and discharge pipeline link controlled can guarantee electrolyte simultaneously
Electrochemical reaction in main pile is abundant, balanced, advantageously reduces the inconsistent phenomenon of liquid level.
Specifically, in the system, further includes:
The liquid level sensor 21 for being set to the electrolyte liquid fluid reservoir, acquiring liquid level in real time；
The liquid level sensor 22 for being set to the anode electrolyte fluid reservoir, acquiring liquid level in real time.
Specifically, in the system,
The capacity of the bypass pile is 5%-the 10% of the main pile capacity.
Specifically, in the system, further includes:
Battery management system 37 is electrically connected, for calculating electrolyte with the liquid level sensor 21, liquid level sensor 22
The liquid level difference of liquid fluid reservoir and anode electrolyte fluid reservoir, and when liquid level difference is not less than preset first threshold,
After this time fluid valve 33 of control is closed and this time fluid valve 34 is closed, the first valence state detection pipeline is controlled
It is put into simultaneously with the second valence state detection pipeline.
Specifically, in the system,
Battery management system BMS is also used to calculate the liquid level of electrolyte liquid fluid reservoir Yu anode electrolyte fluid reservoir
Difference, and when liquid level difference is not more than preset second threshold,
Closed and after the liquid flowing valve 30 closes controlling the liquid flowing valve 29, close in this time fluid valve 33 of control and
After this time closing of fluid valve 34, the bypass pile liquid valve door 35 and 36 closing of bypass pile liquid valve door are being controlled
Afterwards, the electrolyte liquid charge and discharge pipeline and the negative anode electrolyte charge and discharge pipeline are controlled while being put into；Wherein, second threshold
Value is less than the first threshold.
The flow battery pipe-line system for having mixed liquid function of the embodiment of the present invention, can overcome the liquid stream of emerged in operation
The inconsistent problem of liquid level in battery plus-negative plate electrolyte fluid reservoir, so that the liquid level in the fluid reservoir of positive and negative anodes electrolyte
Difference is substantially zeroed, ensure that the capacity of redox flow battery energy storage system is maintained at stable state for a long time, avoids threat system peace
The defect of row for the national games.
The pipe-line system of the embodiment of the present invention can be poor according to realization flow battery system positive and negative anodes electrolyte liquid storage jar liquid surface,
Start mixed liquid pipe reason, adjusts price, and after adjusting price, the electrochemical reaction being again started up in main pile；Mixed liquid process is logical
Bypass pile is crossed to detect electrolyte ion valence state, reducing mixed liquid in the process influences main pile.
Fig. 1 is the flow battery pipe-line system topological structure for having mixed liquid function in the present embodiment.Main pile 23, for leading to
It crosses electrolyte electrochemical reaction and generates direct current energy；The anode electrolyte becomes owner of pile pipeline electromagnetic valve 25 and is located at anode electrolyte
Pump conduit 7 and anode electrolyte are become owner of between pile pipeline 9 out, go out pump conduit 7 and anolyte for controlling anode electrolyte
Liquid becomes owner of the on-off between pile pipeline 9；The electrolyte liquid, which enters electrolyte liquid and enters tank pipeline electromagnetic valve 27, is located at negative electricity
Solution liquid goes out main pile pipeline 12 and electrolyte liquid enters between tank pipeline 14, goes out main pile pipeline 12 for controlling electrolyte liquid
Enter the on-off between tank pipeline 14 with electrolyte liquid；
The anode electrolyte enter to bypass No. 1 solenoid valve 29 of pile pipeline be located at anode electrolyte go out pump conduit 7 and anode electricity
Solution liquid enters to bypass between pile pipeline 15, and for controlling, anode electrolyte goes out pump conduit 7 and anode electrolyte enters to bypass pile pipe
On-off between road 15；
The anode electrolyte enter to bypass No. 2 solenoid valves 31 of pile pipeline be located at anode electrolyte enter to bypass pile pipeline 15 with
Bypass pile 24 between, for control anode electrolyte enter to bypass pile pipeline 15 and bypass pile 24 between on-off；
The anode electrolyte, which enters electrolyte liquid and enters tank pipeline electromagnetic valve 33, to be located at anode electrolyte and enters electrolyte liquid
Tank pipeline 19 and electrolyte liquid enter between tank pipeline 14, for control anode electrolyte enter electrolyte liquid enter tank pipeline 19 with
Electrolyte liquid enters the on-off between tank pipeline 14；
The electrolyte liquid go out bypass pile pipeline electromagnetic valve 35 be located at electrolyte liquid go out bypass pile pipeline 18 with bear
Pole electrolyte enters between tank pipeline 14, and for controlling, electrolyte liquid goes out to bypass pile pipeline 18 and electrolyte liquid enters tank pipeline
On-off between 14；
The anode electrolyte, which enters to bypass pile pipeline 15 and with anode electrolyte enters electrolyte liquid and enter tank pipeline 19, directly to be connected
It connects；
The electrolyte liquid goes out to bypass pile pipeline 18 and is directly connected to bypass pile 24；
The electrolyte liquid becomes owner of pile pipeline electromagnetic valve 26 and is located at electrolyte liquid and goes out pump conduit 8 to enter with electrolyte liquid
Between main pile pipeline 10, for controlling, electrolyte liquid goes out pump conduit 8 and electrolyte liquid is become owner of between pile pipeline 10
On-off；
The anode electrolyte enters anode electrolyte and enters tank pipeline electromagnetic valve 28 and be located at anode electrolyte to go out main pile pipeline 11
Enter between tank pipeline 13 with anode electrolyte, for controlling, anode electrolyte goes out main pile pipeline 11 and anode electrolyte enters tank pipe
On-off between road 13；
The electrolyte liquid, which enters to bypass No. 1 solenoid valve 30 of pile pipeline and is located at electrolyte liquid, goes out pump conduit 8 and negative electricity
Solution liquid enters to bypass between pile pipeline 16, and for controlling, electrolyte liquid goes out pump conduit 8 and electrolyte liquid enters to bypass pile pipe
On-off between road 16；
The electrolyte liquid enter to bypass No. 2 solenoid valves 32 of pile pipeline be located at electrolyte liquid enter to bypass pile pipeline 16 with
Bypass pile 24 between, for control electrolyte liquid enter to bypass pile pipeline 16 and bypass pile 24 between on-off；
The electrolyte liquid, which enters anode electrolyte and enters tank pipeline electromagnetic valve 34, to be located at electrolyte liquid and enters anode electrolyte
Tank pipeline 20 and anode electrolyte enter between tank pipeline 13, for control electrolyte liquid enter anode electrolyte enter tank pipeline 20 with
Anode electrolyte enters the on-off between tank pipeline 13；
The anode electrolyte, which goes out to bypass pile pipeline electromagnetic valve 36 and is located at anode electrolyte, to be gone out to bypass pile pipeline 17 and just
Pole electrolyte enters between tank pipeline 13, and for controlling, anode electrolyte goes out to bypass pile pipeline 17 and anode electrolyte enters tank pipeline
On-off between 13；
The electrolyte liquid, which enters to bypass pile pipeline 16 and with electrolyte liquid enters anode electrolyte and enter tank pipeline 20, directly to be connected
It connects；
The anode electrolyte goes out to bypass pile pipeline 17 and is directly connected to bypass pile 24.
The bypass pile 24 generates DC voltage for reacting by electrolyte electrochemical, and the DC voltage value is for electricity
Pond management system judges electrolyte valence state；
The anode electrolyte liquid tank level sensor 21, for measuring the anolyte in anode electrolyte fluid reservoir 1
Liquid liquid level；
The electrolyte liquid liquid tank level sensor 22, for measuring the electrolyte in electrolyte liquid fluid reservoir 2
Liquid liquid level；
The battery management system 37, for judging that positive and negative anodes liquid tank level is poor, and control solenoid valve open and close, with
And control electrolyte magnetic drive circulating pump.
As shown in Fig. 2, redox flow battery energy storage system is in normal operating conditions, anode electrolyte magnetic drive circulating pump 5,
It anode electrolyte in anode electrolyte fluid reservoir 1 along anode electrolyte is gone out tank pipeline 3 is delivered to anode electrolyte to go out pump line
Road 7 flows through anode electrolyte later and becomes owner of and becomes owner of pile pipeline 9 along anode electrolyte again after pile pipeline electromagnetic valve 25 and be delivered to
Main pile 23 flows through after main pile 23 again along anode electrolyte goes out main pile pipeline 11, anode electrolyte enters anode electrolyte and enters
Tank pipeline electromagnetic valve 28, anode electrolyte enter tank pipeline 13 and are delivered to anode electrolyte fluid reservoir 1.
As shown in figure 3, redox flow battery energy storage system is in normal operating conditions, electrolyte liquid magnetic drive circulating pump 6,
It electrolyte liquid in electrolyte liquid fluid reservoir 2 along electrolyte liquid is gone out tank pipeline 4 is delivered to electrolyte liquid to go out pump line
Road 8 flows through after electrolyte liquid becomes owner of pile pipeline electromagnetic valve 26 later and becomes owner of the conveying of pile pipeline 10 along electrolyte liquid again
To main pile 23, flow through after main pile 23 again along electrolyte liquid goes out main pile pipeline 12, electrolyte liquid enters electrolyte liquid
Enter tank pipeline electromagnetic valve 27, electrolyte liquid enters tank pipeline 14 and is delivered to electrolyte liquid fluid reservoir 2.
As shown in figure 4, redox flow battery energy storage system is in electrolyte valence state detecting state, anode electrolyte magnetic drive is followed
Ring pump 5, goes out tank pipeline 3 along anode electrolyte for the anode electrolyte in anode electrolyte fluid reservoir 1 and is delivered to anode electrolyte
Pump conduit 7 out, flow through that anode electrolyte enters to bypass No. 1 solenoid valve 29 of pile pipeline, anode electrolyte enters to bypass pile pipe later
Road 15, anode electrolyte enter to bypass No. 2 solenoid valves 31 of pile pipeline and are delivered to bypass pile 24, flow through after bypassing pile 24 along just
Pole electrolyte goes out to bypass pile pipeline 17, anode electrolyte goes out bypass pile pipeline electromagnetic valve 36, anode electrolyte enters tank pipeline
13 are delivered to anode electrolyte fluid reservoir 1.
As shown in figure 5, redox flow battery energy storage system is in electrolyte valence state detecting state, electrolyte liquid magnetic drive is followed
Ring pump 6, goes out tank pipeline 4 along electrolyte liquid for the electrolyte liquid in electrolyte liquid fluid reservoir 2 and is delivered to electrolyte liquid
Pump conduit 8 out, flow through that electrolyte liquid enters to bypass No. 1 solenoid valve 30 of pile pipeline, electrolyte liquid enters to bypass pile pipe later
Road 16, electrolyte liquid enter to bypass No. 2 solenoid valves 32 of pile pipeline and are delivered to bypass pile 24, flow through after bypassing pile 24 along negative
Pole electrolyte goes out to bypass pile pipeline 18, electrolyte liquid goes out bypass pile pipeline electromagnetic valve 35, electrolyte liquid enters tank pipeline
14 are delivered to electrolyte liquid fluid reservoir 2.
As shown in fig. 6, redox flow battery energy storage system is in electrolyte liquid inspection state, anode electrolyte magnetic drive is followed
Ring pump 5, goes out tank pipeline 3 along anode electrolyte for the anode electrolyte in anode electrolyte fluid reservoir 1 and is delivered to anode electrolyte
Pump conduit 7 out, flow through that anode electrolyte enters to bypass No. 1 solenoid valve 29 of pile pipeline, anode electrolyte enters to bypass pile pipe later
Road 15, anode electrolyte enter electrolyte liquid enter tank pipeline 19, anode electrolyte enter electrolyte liquid enter tank pipeline electromagnetic valve 33,
Electrolyte liquid enters tank pipeline 14 and is delivered to electrolyte liquid fluid reservoir 2.
As shown in fig. 7, redox flow battery energy storage system is in electrolyte liquid inspection state, electrolyte liquid magnetic drive is followed
Ring pump 6, goes out tank pipeline 4 along electrolyte liquid for the electrolyte liquid in electrolyte liquid fluid reservoir 2 and is delivered to electrolyte liquid
Pump conduit 8 out, flow through that electrolyte liquid enters to bypass No. 1 solenoid valve 30 of pile pipeline, electrolyte liquid enters to bypass pile pipe later
Road 16, electrolyte liquid enter anode electrolyte enter tank pipeline 20, electrolyte liquid enter anode electrolyte enter tank pipeline electromagnetic valve 34,
Anode electrolyte enters tank pipeline 13 and is delivered to anode electrolyte fluid reservoir 1.
In a complete liquid level difference adjustment circulation, pipe-line system first works the state in Fig. 6 and Fig. 7, carries out mixed liquid,
And the adjustment without liquid level difference；Then, pipe-line system work passes through the voltage of monitoring bypass pile in the state of Fig. 4 and Fig. 5
Judge whether mixed liquid makes valence state consistent；If valence state is consistent, pipe-line system is made first to work Fig. 6's or Fig. 7 again
State carries out the adjustment of liquid level difference；After liquid level difference is met the requirements, pipe-line system works in the state of Fig. 2 and Fig. 3, realizes energy storage
The pre-charging functions of system.
The present invention is described by reference to a small amount of embodiment above.However, it is known in those skilled in the art,
As defined by subsidiary Patent right requirement, in addition to the present invention other embodiments disclosed above equally fall in this hair
In bright range.
Normally, all terms used in the claims are all solved according to them in the common meaning of technical field
It releases, unless in addition clearly being defined wherein.All references " one/being somebody's turn to do/is somebody's turn to do [device, component etc.] " solve with being all opened
At least one example being interpreted as in the device, component etc., unless otherwise expressly specified.The step of any method disclosed herein
It need not all be run with disclosed accurate sequence, unless explicitly stated otherwise.
Claims (10)
1. a kind of all-vanadium flow battery pipe-line system for having mixed liquid function characterized by comprising
Positive fluid reservoir, cathode fluid reservoir, the first mixed liquid pipeline and the second mixed liquid pipeline；
The first mixed liquid pipeline includes positive liquid outlet pipe (3), anode electrolyte delivery pump (5), liquor charging valve (29), returns liquid
Valve (33) and the cathode back liquid pipeline (14) being arranged in the cathode fluid reservoir；
The second mixed liquid pipeline includes cathode liquid outlet pipe (4), electrolyte liquid delivery pump (6), liquor charging valve (30), returns liquid
Valve (34) and the positive back liquid pipeline (13) being arranged in the positive fluid reservoir；Wherein,
When mixed liquid, anode electrolyte is flowed out from the positive fluid reservoir, followed by anode electrolyte delivery pump (5), liquor charging valve
Door (29) returns fluid valve (33) and cathode back liquid pipeline (14) into cathode fluid reservoir；
Electrolyte liquid is flowed out from the cathode fluid reservoir, followed by electrolyte liquid delivery pump (6), liquor charging valve (30),
It goes back to fluid valve (34) and positive back liquid pipeline (13) enters positive fluid reservoir.
2. system according to claim 1, which is characterized in that
The opening and closing of the liquor charging valve (29) is the independently-controlled；
The opening and closing of the liquor charging valve (30) is the independently-controlled；
The opening and closing of described time fluid valve (33) is the independently-controlled；
The opening and closing of described time fluid valve (34) is the independently-controlled；
The opening and closing of the anode electrolyte delivery pump (5) is the independently-controlled；
The opening and closing of the electrolyte liquid delivery pump (6) is the independently-controlled；
Or
The opening and closing of the liquor charging valve (29) and the opening and closing linkage of the liquor charging valve (30) are controlled；
The opening and closing of described time fluid valve (33) and the opening and closing linkage of described time fluid valve (34) are controlled；
The opening and closing of the anode electrolyte delivery pump (5) and the opening and closing linkage of the electrolyte liquid delivery pump (6) are controlled.
3. system according to claim 1, which is characterized in that further include:
Bypass pile, the first valence state detection pipeline and the second valence state detection pipeline；
First state detection pipeline includes bypass pile liquid flowing valve (31), described along the flow direction of anode electrolyte
It is provided on pipeline after liquor charging valve (29) the first branch point (A1), the bypass pile liquid flowing valve (31) and described time
Fluid valve (33) is separately positioned on from two laterals that first branch point (A1) separates；
When valence state detects, described time fluid valve (33) is in off state, and anode electrolyte is followed by anode electrolyte delivery pump
(5), liquor charging valve (29), the first branch point (A1), bypass pile liquid flowing valve (31) enter the bypass pile；
The first valence state detection pipeline further includes bypass pile liquid valve door (36)；
The anode back liquid pipeline (13) includes the second branch point (A2), the bypass pile liquid valve door (36) and described time liquid
Valve (34), which sets up separately, to be set from two laterals that second branch point (A2) separates；
When valence state detects, described time fluid valve (34) is in off state, and the anode electrolyte flowed out from the bypass pile is successively
Flow through bypass pile liquid valve door (36), the second branch point (A2), the positive positive fluid reservoir of back liquid pipeline (13) entrance；
The second valence state detection includes bypass pile liquid flowing valve (32) with pipeline, along the flow direction of anode electrolyte, institute
It states and is provided with third branch point (A3) on the pipeline after liquor charging valve (30), the bypass pile liquid flowing valve (32) and described
Fluid valve (34) are gone back to be separately positioned on from two laterals that the third branch point (A3) separates；
When valence state detects, described time fluid valve (34) is in off state, and electrolyte liquid is followed by electrolyte liquid delivery pump
(6), liquor charging valve (30), third branch point (A3), bypass pile liquid flowing valve (32) enter the bypass pile；
The second valence state detection pipeline further includes bypass pile liquid valve door (35)；
The cathode back liquid pipeline (14) includes the 4th branch point (A4), the bypass pile liquid valve door (35) and described time liquid
Valve (33), which sets up separately, to be set from two articles of laterals that the 4th branch point (A4) separates；
When valence state detects, described time fluid valve (33) is in off state, and the electrolyte liquid flowed out from the bypass pile is successively
Flow through bypass pile liquid valve door (35), the 4th branch point (A4), cathode back liquid pipeline (14) enter cathode fluid reservoir.
4. system according to claim 3, which is characterized in that
The opening and closing of the anode electrolyte delivery pump (5) and the opening and closing linkage of the electrolyte liquid delivery pump (6) are controlled；
The opening and closing of the liquor charging valve (29) and the opening and closing linkage of the liquor charging valve (30) are controlled；
It is described bypass pile liquid flowing valve (32) opening and closing, with it is described bypass pile liquid flowing valve (31) opening and closing link it is controlled；
It is described bypass pile liquid valve door (35) opening and closing, with it is described bypass pile liquid valve door (36) opening and closing link it is controlled.
5. system according to claim 3, which is characterized in that further include:
Main pile, anode electrolyte charge and discharge pipeline and electrolyte liquid charge and discharge pipeline；
The anode electrolyte charge and discharge pipeline includes main pile liquid flowing valve (25)；
The anode liquid outlet pipe (3) includes quintafurcation point (A5), the liquor charging valve (29) and the main pile liquid feed valve
Door (25) is separately positioned on from two articles of laterals that the quintafurcation point (A5) separates；
When charge and discharge, described time fluid valve (33) is in off state, and the liquor charging valve (29) is in off state, anode electrolyte
Enter the main pile followed by the quintafurcation point (A5), the main pile liquid flowing valve (25)；
The anode electrolyte charge and discharge pipeline further includes main pile liquid valve door (28)；
It include the 6th branch on lateral between second branch point (A2) and bypass pile liquid valve door (36)
Point (A6)；The main pile liquid valve door (28) and the bypass pile liquid valve door (36) setting are from the 6th branch point
(A2) on two laterals separated；
When charge and discharge, described time fluid valve (34) is in off state, and the bypass pile liquid valve door (36) is closed, from the master
The anode electrolyte of pile outflow is followed by main pile liquid valve door (28), the 6th branch point (A6), second point described
Fulcrum (A2), positive back liquid pipeline (13) enter positive fluid reservoir；
The electrolyte liquid charge and discharge pipeline includes main pile liquid flowing valve (26)；
The cathode liquid outlet pipe (4) includes the 7th branch point (A7), the liquor charging valve (30) and the main pile liquid feed valve
Door (26) is separately positioned on from two articles of laterals that the 7th branch point (A7) separates；
When charge and discharge, described time fluid valve (34) is in off state, and the liquor charging valve (30) is in off state, anode electrolyte
Enter the main pile followed by the 7th branch point (A7), the main pile liquid flowing valve (26)；
The electrolyte liquid charge and discharge pipeline further includes main pile liquid valve door (27)；
It include the 8th branch on lateral between 4th branch point (A4) and bypass pile liquid valve door (35)
Point (A8)；The main pile liquid valve door (27) and the bypass pile liquid valve door (35) setting are from the 8th branch point
(A8) on two laterals separated；
When charge and discharge, described time fluid valve (33) is in off state, and the bypass pile liquid valve door (35) is closed, from the master
The electrolyte liquid of pile outflow is followed by main pile liquid valve door (27), the 8th branch point (A8), 4th point described
Fulcrum (A4), cathode back liquid pipeline (14) enter cathode fluid reservoir.
6. system according to claim 5, which is characterized in that
The opening and closing of the anode electrolyte delivery pump (5) and the opening and closing linkage of the electrolyte liquid delivery pump (6) are controlled；
The opening and closing of the main pile liquid flowing valve (26) and the opening and closing linkage of main pile liquid flowing valve (25) are controlled；
It is the opening and closing of the main pile liquid valve door (27), controlled with the opening and closing of the main pile liquid valve door (28) linkage.
7. system according to claim 3, which is characterized in that further include:
The liquid level sensor (21) for being set to the electrolyte liquid fluid reservoir, acquiring liquid level in real time；
The liquid level sensor (22) for being set to the anode electrolyte fluid reservoir, acquiring liquid level in real time.
8. system according to claim 5, which is characterized in that
The capacity of the bypass pile is 5%-the 10% of the main pile capacity.
9. system according to claim 5, which is characterized in that further include:
Battery management system (37) is electrically connected, for calculating cathode with the liquid level sensor (21), liquid level sensor (22)
The liquid level difference of electrolyte fluid reservoir and anode electrolyte fluid reservoir, and when liquid level difference is not less than preset first threshold,
After described time of control fluid valve (33) is closed and described time fluid valve (34) is closed, controls first valence state and detect
It is put into pipeline and the second valence state detection with pipeline.
10. system according to claim 5, which is characterized in that
The battery management system (37) is also used to calculate the liquid level difference of electrolyte liquid fluid reservoir Yu anode electrolyte fluid reservoir,
And when liquid level difference is not more than preset second threshold,
After controlling liquid flowing valve (29) closing and the liquid flowing valve (30) closing,
After described time of control fluid valve (33) is closed and described time fluid valve (34) is closed,
After controlling the bypass pile liquid valve door (35) and the bypass pile liquid valve door (36) closing,
It controls the electrolyte liquid charge and discharge pipeline and the negative anode electrolyte charge and discharge pipeline while putting into；Wherein, institute
Second threshold is stated less than the first threshold.
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