CN106910919A - All-vanadium flow battery energy-storage system pile electrolyte leakproof automatic checkout system and method - Google Patents

All-vanadium flow battery energy-storage system pile electrolyte leakproof automatic checkout system and method Download PDF

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CN106910919A
CN106910919A CN201710310527.8A CN201710310527A CN106910919A CN 106910919 A CN106910919 A CN 106910919A CN 201710310527 A CN201710310527 A CN 201710310527A CN 106910919 A CN106910919 A CN 106910919A
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pile
pneumatic
electrolyte
gas pressure
valve
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CN106910919B (en
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魏达
刘平平
刘杰
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Hunan Dewopu Electric Co ltd
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Hunan Province Dworp Energy Co Ltd
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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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • H01M8/04432—Pressure differences, e.g. between anode and cathode
    • 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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04664—Failure or abnormal function
    • H01M8/04679—Failure or abnormal function of fuel cell stacks
    • 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
    • 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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  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
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Abstract

The present invention relates to all-vanadium flow battery energy-storage system pile electrolyte leakproof automatic checkout system and method, the preceding pile electrolyte leakproof automatic detection of electricity operation on all-vanadium flow battery energy-storage system is realized；Automatic checkout system includes：First pneumatic three-way control valve, the second pneumatic three-way control valve, the first electronic valve, the second electronic valve, the 3rd electronic valve, the 4th electronic valve, first gas pressure sensor, second gas pressure sensor, supply air system, leakage self-inspection control and the information processing terminal；The advantage of the invention is that：It is attached with all-vanadium flow battery energy-storage system pile pipeline by detection means, tests the pressure and air-tightness of pile electrolyte path, realizes the preceding pile electrolyte leakproof automatic detection of electricity operation on all-vanadium flow battery energy-storage system.

Description

All-vanadium flow battery energy-storage system pile electrolyte leakproof automatic checkout system and method
Technical field：
The present invention relates to all-vanadium flow battery energy-storage system, and in particular to all-vanadium flow battery energy-storage system pile electrolyte Leakproof automatic checkout system and method.
Background technology：
All-vanadium flow battery pile is made up of several cells in series, and several monocells are fixed on into one using bolt Rise, electrolyte is flowed into from pile two end plates, in the flowing of pile inner loop.Single cell units be usually by end plate, electrode liner plate, Battery lead plate deflector is constituted, main with carbon material as electrode at present, and, used as bipolar plates, centre is by ion exchange for high-density graphite plate Film separates；Electrolyte flows uniformly through electrode surface and electrochemical reaction occurs by deflector, is collected by battery lead plate and conducted Electric current.The diaphragm material of all-vanadium flow battery plays very important effect in the course of work of vanadium cell, and diaphragm material The quality of performance not only affects the stabilization output of battery performance, but also can be directly connected to the length in vanadium cell life-span.
All-vanadium flow battery pile is protected and fixed in material selection and structure design to battery electrode, to protect Card vanadium battery electrode is consistent in working long hours with electrolyte contacts area, so as to stablize the service behaviour of pile.So And all-vanadium flow battery energy-storage system, after long-distance transportation and long-play, both positive and negative polarity electrolyte is in the flowing by pile During there is mixed liquid and leakage risk, it is to avoid there is the leakage risk existed after pile physical arrangement is damaged, it is necessary to a kind of complete Vanadium redox flow battery energy storage system pile electrolyte leakproof automatic checkout system and method.
The content of the invention：
The present invention provides a kind of all-vanadium flow battery energy-storage system pile electrolyte leakproof automatic checkout system and method, real Pile electrolyte leakproof automatic detection before electricity operation on existing all-vanadium flow battery energy-storage system.
Concrete technical scheme is as follows：
All-vanadium flow battery energy-storage system pile electrolyte leakproof automatic checkout system, including：
From anolyte flow container liquid outlet to the 3rd electronic valve 5, first pneumatic three being sequentially connected in series battery pile Logical regulating valve 1；
From battery pile to the first gas pressure sensor 7, second being sequentially connected in series anolyte flow container liquid return hole Electronic valve 4；
From electrolyte flow container liquid outlet to the 4th electronic valve 6, second pneumatic three being sequentially connected in series battery pile Logical regulating valve 2；
From battery pile to the second gas pressure sensor 8, first being sequentially connected in series electrolyte flow container liquid return hole Electronic valve 3；
The B ends of supply air system, including the first air outlet 9, the second air outlet 10, the first air outlet and the first Pneumatic three-way valve Connection, the second air outlet is connected with the second Pneumatic three-way valve B ends；
Leakage self-inspection control and the information processing terminal, the first electronic valve of control, the second electronic valve, the 3rd electronic valve Door, the 4th electronic valve, the first pneumatic three-way control valve, the action of the second pneumatic three-way control valve, read first gas pressure The gas pressure of sensor, second gas pressure sensor, the analysis of pressure data, judges and shows result.
The all-vanadium flow battery energy-storage system pile anode electrolyte path leakproof realized in above-mentioned automatic checkout system Automatic testing method, comprises the following steps：
Step A1：Close the first electronic valve 3, the second electronic valve 4, the 3rd electronic valve 5, the 4th electronic valve 6；
Step A2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step A3：The first air outlet 9 of supply air system is opened, the second air outlet 10 of supply air system is closed；Open first Pneumatic three-way control valve BC paths, close the first pneumatic three-way control valve AC paths, open the second pneumatic three-way control valve AC and lead to Road, closes the second pneumatic three-way control valve BC paths；
Step A4：After continuous operation, the gas pressure Pa of the air outlet of supply air system first is read1, first gas pressure pass Sensor data Pa2, second gas pressure sensor data Pa3；
Step A5：Judge that pile anode electrolyte path whether there is leakage risk；
Step A5.1：If Pa2=k2*Pa1, Pa3=0,0.95≤k2≤ 1, then pile anode electrolyte path air-tightness is good It is good, without leakage risk；
Step A5.2：If Pa2=k2*Pa1, Pa3=k3*Pa1, 0≤k2≤ 0.05,0≤k3≤ 0.05, then ion in pile There is leakage risk between there is damaged or both positive and negative polarity electrolyte path in exchange membrane；
Step A5.3：If Pa2=k2*Pa1, Pa3=0,0≤k2≤ 0.05, then pile anode electrolyte path there is leakage Risk.
The all-vanadium flow battery energy-storage system pile electrolyte liquid path leakproof realized in above-mentioned automatic checkout system Automatic testing method, comprises the following steps：
Step B1：Close the first electronic valve 3, the second electronic valve 4, the 3rd electronic valve 5, the 4th electronic valve 6；
Step B2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step B3：The second air outlet 10 of supply air system is opened, the first air outlet 9 of supply air system is closed；Open first Pneumatic three-way control valve AC paths, close the first pneumatic three-way control valve BC paths, open the second pneumatic three-way control valve BC and lead to Road, closes the second pneumatic three-way control valve AC paths；
Step B4：After continuous operation, the gas pressure Pa of the air outlet of supply air system second is read4, first gas pressure pass Sensor data Pa5, second gas pressure sensor data Pa6；
Step B5：Judge that pile electrolyte liquid path whether there is leakage risk；
Step B5.1：If Pa6=k6*Pa4, Pa5=0,0.95≤k6≤ 1, then pile electrolyte liquid path air-tightness is good It is good, without leakage risk；
Step B5.2：If Pa6=k6*Pa4, Pa5=k5*Pa4, 0≤k5≤ 0.05,0≤k6≤ 0.05, then ion in pile There is leakage risk between there is damaged or both positive and negative polarity electrolyte path in exchange membrane；
Step B5.3：If Pa6=k6*Pa4, Pa5=0,0≤k6≤ 0.05, then pile electrolyte liquid path there is leakage Risk.
The all-vanadium flow battery energy-storage system pile electrolyte path leakproof realized in above-mentioned automatic checkout system is automatic Detection method, comprises the following steps：
Step C1：Close the first electronic valve 3, the second electronic valve 4, the 3rd electronic valve 5, the 4th electronic valve 6；
Step C2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step C3：Open the first air outlet 9, second air outlet 10 of supply air system；Open the first pneumatic three-way control valve BC paths, close the first pneumatic three-way control valve AC paths, open the second pneumatic three-way control valve BC paths, close second pneumatic Three-way control valve AC paths；
Step C4：After continuous operation, the first air outlet gas pressure Pa of supply air system is read respectively7, the second air outlet Gas pressure Pa8, first gas pressure sensor data Pa9, second gas pressure sensor data Pa10；
Step C5：Judge that pile positive and negative electrode electrolyte path whether there is leakage risk；
Step C5.1：If Pa9=k9*Pa7, Pa10=k10* Pa8,0.95≤k9≤ 1,0.95≤k10≤ 1, then pile just, Electrolyte liquid path air-tightness is good, without leakage risk；
Step C5.2：If Pa9=k9*Pa7, Pa10=k10* Pa8,0≤k9≤ 0.05,0.95≤k10≤ 1, then pile positive pole There is leakage risk in electrolyte path, pile electrolyte liquid path does not exist leakage risk, and amberplex knot in pile Structure is normal；If Pa9=k9*Pa7, Pa10=k10* Pa8,0.95≤k9≤ 1,0≤k10≤ 0.05, then pile anode electrolyte path In the absence of leakage risk, and in pile, ion exchange membrane structure is normal, and pile electrolyte liquid path has leakage risk；
Step C5.3：If Pa7=k*Pa8, Pa9=Pa10, 0≤k≤0.05；Or Pa8=k1*Pa7, Pa9=Pa10, 0≤ k1≤0.05；Then pile positive and negative electrode electrolyte path intermediate ion exchange membrane is present, and there is the mixed liquid risk of leakage.
The all-vanadium flow battery energy-storage system pile electrolyte leakproof automatic detection side realized on automatic checkout system is stated Method, comprises the following steps：
Step A：Anode electrolyte path leakproof automatic detection；
Step A1：Close the first electronic valve 3, the second electronic valve 4, the 3rd electronic valve 5, the 4th electronic valve 6；
Step A2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step A3：The first air outlet 9 of supply air system is opened, the second air outlet 10 of supply air system is closed；Open first Pneumatic three-way control valve BC paths, close the first pneumatic three-way control valve AC paths, open the second pneumatic three-way control valve AC and lead to Road, closes the second pneumatic three-way control valve BC paths；
Step A4：After continuous operation, the gas pressure Pa of the air outlet of supply air system first is read1, first gas pressure pass Sensor data Pa2, second gas pressure sensor data Pa3；
Step A5：Judge that pile anode electrolyte path whether there is leakage risk；
Step A5.1：If Pa2=k2*Pa1, Pa3=0,0.95≤k2≤ 1, then pile anode electrolyte path air-tightness is good It is good, without leakage risk；
Step A5.2：If Pa2=k2*Pa1, Pa3=k3*Pa1, 0≤k2≤ 0.05,0≤k3≤ 0.05, then ion in pile There is leakage risk between there is damaged or both positive and negative polarity electrolyte path in exchange membrane；
Step A5.3：If Pa2=k2*Pa1, Pa3=0,0≤k2≤ 0.05, then pile anode electrolyte path there is leakage Risk；
Step B：Electrolyte liquid path leakproof automatic detection；
Step B1：Close the first electronic valve 3, the second electronic valve 4, the 3rd electronic valve 5, the 4th electronic valve 6；
Step B2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step B3：The second air outlet 10 of supply air system is opened, the first air outlet 9 of supply air system is closed；Open first Pneumatic three-way control valve AC paths, close the first pneumatic three-way control valve BC paths, open the second pneumatic three-way control valve BC and lead to Road, closes the second pneumatic three-way control valve AC paths；
Step B4：After continuous operation, the gas pressure Pa of the air outlet of supply air system second is read4, first gas pressure pass Sensor data Pa5, second gas pressure sensor data Pa6；
Step B5：Judge that pile electrolyte liquid path whether there is leakage risk；
Step B5.1：If Pa6=k6*Pa4, Pa5=0,0.95≤k6≤ 1, then pile electrolyte liquid path air-tightness is good It is good, without leakage risk；
Step B5.2：If Pa6=k6*Pa4, Pa5=k5*Pa4, 0≤k5≤ 0.05,0≤k6≤ 0.05, then ion in pile There is leakage risk between there is damaged or both positive and negative polarity electrolyte path in exchange membrane；
Step B5.3：If Pa6=k6*Pa4, Pa5=0,0≤k6≤ 0.05, then pile electrolyte liquid path there is leakage Risk；
Step C：Electrolyte path leakproof automatic detection；
Step C1：Close the first electronic valve 3, the second electronic valve 4, the 3rd electronic valve 5, the 4th electronic valve 6；
Step C2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step C3：Open the first air outlet 9, second air outlet 10 of supply air system；Open the first pneumatic three-way control valve BC paths, close the first pneumatic three-way control valve AC paths, open the second pneumatic three-way control valve BC paths, close second pneumatic Three-way control valve AC paths；
Step C4：After continuous operation, the first air outlet gas pressure Pa of supply air system is read respectively7, the second air outlet Gas pressure Pa8, first gas pressure sensor data Pa9, second gas pressure sensor data Pa10；
Step C5：Judge that pile positive and negative electrode electrolyte path whether there is leakage risk；
Step C5.1：If Pa9=k9*Pa7, Pa10=k10* Pa8,0.95≤k9≤ 1,0.95≤k10≤ 1, then pile just, Electrolyte liquid path air-tightness is good, without leakage risk；
Step C5.2：If Pa9=k9*Pa7, Pa10=k10* Pa8,0≤k9≤ 0.05,0.95≤k10≤ 1, then pile positive pole There is leakage risk in electrolyte path, pile electrolyte liquid path does not exist leakage risk, and amberplex knot in pile Structure is normal；If Pa9=k9*Pa7, Pa10=k10* Pa8,0.95≤k9≤ 1,0≤k10≤ 0.05, then pile anode electrolyte path In the absence of leakage risk, and in pile, ion exchange membrane structure is normal, and pile electrolyte liquid path has leakage risk；
Step C5.3：If Pa7=k*Pa8, Pa9=Pa10, 0≤k≤0.05；Or Pa8=k1*Pa7, Pa9=Pa10, 0≤ k1≤0.05；Then pile positive and negative electrode electrolyte path intermediate ion exchange membrane is present, and there is the mixed liquid risk of leakage.
The present invention is relative to the advantage of prior art：
(1) when supply air system works, pneumatic three-way control valve controls positive and negative electrolyte circulation pipeline to close, leakage inspection Open on test tube road；When all-vanadium flow battery energy-storage system charge/discharge operation, pneumatic three-way control valve controls positive and negative electrolyte stream Siphunculus road is opened, and leakage signal piping is closed, and then realization is automatically controlled to all-vanadium flow pipeline electrolyte flow direction.
(2) be analyzed for leakage testing result by leakage self-inspection control and the information processing terminal, if system normally if close The relay switch that all-vanadium flow battery energy-storage system works on power, upper electricity operation；Otherwise all-vanadium flow battery energy-storage system is being just The working barrel of negative electrolyte is out of service, and disconnects the relay switch that all-vanadium flow battery energy-storage system works on power, and forces Close all-vanadium flow battery energy-storage system.
(3) by all-vanadium flow battery energy-storage system pile electrolyte leakage proof detection device and all-vanadium flow battery energy storage System pile pipeline is attached, and tests the pressure and air-tightness of pile electrolyte path, realizes all-vanadium flow battery energy storage system Pile electrolyte leakproof automatic detection before electricity operation on system.
Brief description of the drawings：
Fig. 1 is all-vanadium flow battery energy-storage system pile electrolyte leakproof automatic checkout system structural representation of the present invention； In figure, 1 represents the first pneumatic three-way control valve, and 2 represent the second pneumatic three-way control valve, and 3 represent the first electronic valve, and 4 represent Second electronic valve, 5 represent the 3rd electronic valve, and 6 represent the 4th electronic valve, and 7 represent first gas pressure sensor, 8 generations Table second gas pressure sensor, 9 represent the first air outlet of supply air system, and 10 represent the second air outlet of supply air system.
Fig. 2 all-vanadium flow battery energy-storage system pile electrolyte leakproof automatic detection flow chart of steps.
Specific embodiment：
Embodiment：
With reference to Fig. 1-2, implementation process of the invention is illustrated.
As shown in figure 1, all-vanadium flow battery energy-storage system pile electrolyte leakproof automatic checkout system, including：
From anolyte flow container liquid outlet to the 3rd electronic valve 5, first pneumatic three being sequentially connected in series battery pile Logical regulating valve 1；
From battery pile to the first gas pressure sensor being sequentially connected in series anolyte flow container liquid return hole, second electricity Sub- valve 4；
From electrolyte flow container liquid outlet to the 4th electronic valve 6, second pneumatic three being sequentially connected in series battery pile Logical regulating valve 2；
From battery pile to the second gas pressure sensor 8, first being sequentially connected in series electrolyte flow container liquid return hole Electronic valve 3；
The B ends of supply air system, including the first air outlet 9, the second air outlet 10, the first air outlet and the first Pneumatic three-way valve Connection, the second air outlet is connected with the second Pneumatic three-way valve B ends；
Leakage self-inspection control and the information processing terminal, the first electronic valve of control, the second electronic valve, the 3rd electronic valve Door, the 4th electronic valve, the first pneumatic three-way control valve, the action of the second pneumatic three-way control valve, read first gas pressure The gas pressure of sensor, second gas pressure sensor, the analysis of pressure data, judges and shows result.
Reference picture 2, all-vanadium flow battery energy-storage system pile electrolyte path leakproof automatic testing method, including following step Suddenly：
Step A：Anode electrolyte path leakproof automatic detection；
Step A1：Close the first electronic valve 3, the second electronic valve 4, the 3rd electronic valve 5, the 4th electronic valve 6；
Step A2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step A3：The first air outlet 9 of supply air system is opened, the second air outlet 10 of supply air system is closed；Open first Pneumatic three-way control valve BC paths, close the first pneumatic three-way control valve AC paths, open the second pneumatic three-way control valve AC and lead to Road, closes the second pneumatic three-way control valve BC paths；
Step A4：After continuous operation 15 seconds, the gas pressure Pa of the air outlet of supply air system first is read1, first gas pressure Force sensor data Pa2, second gas pressure sensor data Pa3；
Step A5：Judge that pile anode electrolyte path whether there is leakage risk；
Step A5.1：If Pa2=k2*Pa1, Pa3=0,0.95≤k2≤ 1, then pile anode electrolyte path air-tightness is good It is good, without leakage risk；
Step A5.2：If Pa2=k2*Pa1, Pa3=k3*Pa1, 0≤k2≤ 0.05,0≤k3≤ 0.05, then ion in pile There is leakage risk between there is damaged or both positive and negative polarity electrolyte path in exchange membrane；
Step A5.3：If Pa2=k2*Pa1, Pa3=0,0≤k2≤ 0.05, then pile anode electrolyte path there is leakage Risk；
Step B：Electrolyte liquid path leakproof automatic detection；
Step B1：Close the first electronic valve 3, the second electronic valve 4, the 3rd electronic valve 5, the 4th electronic valve 6；
Step B2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step B3：The second air outlet 10 of supply air system is opened, the first air outlet 9 of supply air system is closed；Open first Pneumatic three-way control valve AC paths, close the first pneumatic three-way control valve BC paths, open the second pneumatic three-way control valve BC and lead to Road, closes the second pneumatic three-way control valve AC paths；
Step B4：After continuous operation 15 seconds, the gas pressure Pa of the air outlet of supply air system second is read4, first gas pressure Force sensor data Pa5, second gas pressure sensor data Pa6；
Step B5：Judge that pile electrolyte liquid path whether there is leakage risk；
Step B5.1：If Pa6=k6*Pa4, Pa5=0,0.95≤k6≤ 1, then pile electrolyte liquid path air-tightness is good It is good, without leakage risk；
Step B5.2：If Pa6=k6*Pa4, Pa5=k5*Pa4, 0≤k5≤ 0.05,0≤k6≤ 0.05, then ion in pile There is leakage risk between there is damaged or both positive and negative polarity electrolyte path in exchange membrane；
Step B5.3：If Pa6=k6*Pa4, Pa5=0,0≤k6≤ 0.05, then pile electrolyte liquid path there is leakage Risk；
Step C：Electrolyte path leakproof automatic detection；
Step C1：Close the first electronic valve 3, the second electronic valve 4, the 3rd electronic valve 5, the 4th electronic valve 6；
Step C2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step C3：Open the first air outlet 9, second air outlet 10 of supply air system；Open the first pneumatic three-way control valve BC paths, close the first pneumatic three-way control valve AC paths, open the second pneumatic three-way control valve BC paths, close second pneumatic Three-way control valve AC paths；
Step C4：After continuous operation 15 seconds, the first air outlet gas pressure Pa of supply air system is read respectively7, second go out Air port gas pressure Pa8, first gas pressure sensor data Pa9, second gas pressure sensor data Pa10；
Step C5：Judge that pile positive and negative electrode electrolyte path whether there is leakage risk；
Step C5.1：If Pa9=k9*Pa7, Pa10=k10* Pa8,0.95≤k9≤ 1,0.95≤k10≤ 1, then pile just, Electrolyte liquid path air-tightness is good, without leakage risk；
Step C5.2：If Pa9=k9*Pa7, Pa10=k10* Pa8,0≤k9≤ 0.05,0.95≤k10≤ 1, then pile positive pole There is leakage risk in electrolyte path, pile electrolyte liquid path does not exist leakage risk, and amberplex knot in pile Structure is normal；If Pa9=k9*Pa7, Pa10=k10* Pa8,0.95≤k9≤ 1,0≤k10≤ 0.05, then pile anode electrolyte path In the absence of leakage risk, and in pile, ion exchange membrane structure is normal, and pile electrolyte liquid path has leakage risk；
Step C5.3：If Pa7=k*Pa8, Pa9=Pa10, 0≤k≤0.05；Or Pa8=k1*Pa7, Pa9=Pa10, 0≤ k1≤0.05；Then pile positive and negative electrode electrolyte path intermediate ion exchange membrane is present, and there is the mixed liquid risk of leakage.

Claims (5)

1. all-vanadium flow battery energy-storage system pile electrolyte leakproof automatic checkout system, it is characterised in that including：
From anolyte flow container liquid outlet to the 3rd electronic valve (5), the first Pneumatic three-way being sequentially connected in series battery pile Regulating valve (1)；
From battery pile to the first gas pressure sensor (7) being sequentially connected in series anolyte flow container liquid return hole, second electricity Sub- valve (4)；
From electrolyte flow container liquid outlet to the 4th electronic valve (6), the second Pneumatic three-way being sequentially connected in series battery pile Regulating valve (2)；
From battery pile to the second gas pressure sensor (8) being sequentially connected in series electrolyte flow container liquid return hole, first electricity Sub- valve (3)；
The B ends of supply air system, including the first air outlet (9), the second air outlet (10), the first air outlet and the first Pneumatic three-way valve Connection, the second air outlet is connected with the second Pneumatic three-way valve B ends；
Leakage self-inspection control and the information processing terminal, the first electronic valve of control, the second electronic valve, the 3rd electronic valve, the Four electronic valves, the first pneumatic three-way control valve, the action of the second pneumatic three-way control valve, read first gas pressure sensing The gas pressure of device, second gas pressure sensor, the analysis of pressure data, judges and shows result.
2. the all-vanadium flow battery energy-storage system pile anode electrolyte realized in automatic checkout system described in claim 1 leads to Road leakproof automatic testing method, it is characterised in that comprise the following steps：
Step A1：Close the first electronic valve (3), the second electronic valve (4), the 3rd electronic valve (5), the 4th electronic valve (6)；
Step A2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step A3：First air outlet (9) of supply air system is opened, second air outlet (10) of supply air system is closed；Open first Pneumatic three-way control valve BC paths, close the first pneumatic three-way control valve AC paths, open the second pneumatic three-way control valve AC and lead to Road, closes the second pneumatic three-way control valve BC paths；
Step A4：After continuous operation, the gas pressure Pa of the air outlet of supply air system first is read1, first gas pressure sensor number According to Pa2, second gas pressure sensor data Pa3；
Step A5：Judge that pile anode electrolyte path whether there is leakage risk；
Step A5.1：If Pa2=k2*Pa1, Pa3=0,0.95≤k2≤ 1, then pile anode electrolyte path air-tightness is good, nothing Leakage risk；
Step A5.2：If Pa2=k2*Pa1, Pa3=k3*Pa1, 0≤k2≤ 0.05,0≤k3≤ 0.05, then ion exchange in pile There is leakage risk between there is damaged or both positive and negative polarity electrolyte path in film；
Step A5.3：If Pa2=k2*Pa1, Pa3=0,0≤k2≤ 0.05, then pile anode electrolyte path there is leakage risk.
3. the all-vanadium flow battery energy-storage system pile electrolyte liquid realized in automatic checkout system described in claim 1 leads to Road leakproof automatic testing method, it is characterised in that comprise the following steps：
Step B1：Close the first electronic valve (3), the second electronic valve (4), the 3rd electronic valve (5), the 4th electronic valve (6)；
Step B2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step B3：Second air outlet (10) of supply air system is opened, first air outlet (9) of supply air system is closed；Open first Pneumatic three-way control valve AC paths, close the first pneumatic three-way control valve BC paths, open the second pneumatic three-way control valve BC and lead to Road, closes the second pneumatic three-way control valve AC paths；
Step B4：After continuous operation, the gas pressure Pa of the air outlet of supply air system second is read4, first gas pressure sensor number According to Pa5, second gas pressure sensor data Pa6；
Step B5：Judge that pile electrolyte liquid path whether there is leakage risk；
Step B5.1：If Pa6=k6*Pa4, Pa5=0,0.95≤k6≤ 1, then pile electrolyte liquid path air-tightness is good, nothing Leakage risk；
Step B5.2：If Pa6=k6*Pa4, Pa5=k5*Pa4, 0≤k5≤ 0.05,0≤k6≤ 0.05, then ion exchange in pile There is leakage risk between there is damaged or both positive and negative polarity electrolyte path in film；
Step B5.3：If Pa6=k6*Pa4, Pa5=0,0≤k6≤ 0.05, then pile electrolyte liquid path there is leakage risk.
4. the all-vanadium flow battery energy-storage system pile electrolyte path realized in automatic checkout system described in claim 1 is prevented Leakage automatic testing method, it is characterised in that comprise the following steps：
Step C1：Close the first electronic valve (3), the second electronic valve (4), the 3rd electronic valve (5), the 4th electronic valve (6)；
Step C2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step C3：Open the first air outlet (9), second air outlet (10) of supply air system；Open the first pneumatic three-way control valve BC paths, close the first pneumatic three-way control valve AC paths, open the second pneumatic three-way control valve BC paths, close second pneumatic Three-way control valve AC paths；
Step C4：After continuous operation, the first air outlet gas pressure Pa of supply air system is read respectively7, the second air-out gas pressure Power Pa8, first gas pressure sensor data Pa9, second gas pressure sensor data Pa10；
Step C5：Judge that pile positive and negative electrode electrolyte path whether there is leakage risk；
Step C5.1：If Pa9=k9*Pa7, Pa10=k10* Pa8,0.95≤k9≤ 1,0.95≤k10≤ 1, then pile positive and negative electrode is electric Solution liquid path air-tightness is good, without leakage risk；
Step C5.2：If Pa9=k9*Pa7, Pa10=k10* Pa8,0≤k9≤ 0.05,0.95≤k10≤ 1, then pile anolyte There is leakage risk in liquid path, pile electrolyte liquid path does not exist leakage risk, and ion exchange membrane structure is being just in pile Often；If Pa9=k9*Pa7, Pa10=k10* Pa8,0.95≤k9≤ 1,0≤k10≤ 0.05, then pile anode electrolyte path do not deposit In leakage risk, and in pile, ion exchange membrane structure is normal, and pile electrolyte liquid path has leakage risk；
Step C5.3：If Pa7=k*Pa8, Pa9=Pa10, 0≤k≤0.05；Or Pa8=k1*Pa7, Pa9=Pa10, 0≤k1≤ 0.05；Then there is physical damage in pile positive and negative electrode electrolyte path intermediate ion exchange membrane, there is the mixed liquid risk of leakage.
5. the all-vanadium flow battery energy-storage system pile electrolyte leakproof realized in automatic checkout system described in claim 1 is certainly Dynamic detection method, it is characterised in that comprise the following steps：
Step A：Anode electrolyte path leakproof automatic detection；
Step A1：Close the first electronic valve (3), the second electronic valve (4), the 3rd electronic valve (5), the 4th electronic valve (6)；
Step A2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step A3：First air outlet (9) of supply air system is opened, second air outlet (10) of supply air system is closed；Open first Pneumatic three-way control valve BC paths, close the first pneumatic three-way control valve AC paths, open the second pneumatic three-way control valve AC and lead to Road, closes the second pneumatic three-way control valve BC paths；
Step A4：After continuous operation, the gas pressure Pa of the air outlet of supply air system first is read1, first gas pressure sensor number According to Pa2, second gas pressure sensor data Pa3；
Step A5：Judge that pile anode electrolyte path whether there is leakage risk；
Step A5.1：If Pa2=k2*Pa1, Pa3=0,0.95≤k2≤ 1, then pile anode electrolyte path air-tightness is good, nothing Leakage risk；
Step A5.2：If Pa2=k2*Pa1, Pa3=k3*Pa1, 0≤k2≤ 0.05,0≤k3≤ 0.05, then ion exchange in pile There is leakage risk between there is damaged or both positive and negative polarity electrolyte path in film；
Step A5.3：If Pa2=k2*Pa1, Pa3=0,0≤k2≤ 0.05, then pile anode electrolyte path there is leakage risk；
Step B：Electrolyte liquid path leakproof automatic detection；
Step B1：Close the first electronic valve (3), the second electronic valve (4), the 3rd electronic valve (5), the 4th electronic valve (6)；
Step B2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step B3：Second air outlet (10) of supply air system is opened, first air outlet (9) of supply air system is closed；Open first Pneumatic three-way control valve AC paths, close the first pneumatic three-way control valve BC paths, open the second pneumatic three-way control valve BC and lead to Road, closes the second pneumatic three-way control valve AC paths；
Step B4：After continuous operation, the gas pressure Pa of the air outlet of supply air system second is read4, first gas pressure sensor number According to Pa5, second gas pressure sensor data Pa6；
Step B5：Judge that pile electrolyte liquid path whether there is leakage risk；
Step B5.1：If Pa6=k6*Pa4, Pa5=0,0.95≤k6≤ 1, then pile electrolyte liquid path air-tightness is good, nothing Leakage risk；
Step B5.2：If Pa6=k6*Pa4, Pa5=k5*Pa4, 0≤k5≤ 0.05,0≤k6≤ 0.05, then ion exchange in pile There is leakage risk between there is damaged or both positive and negative polarity electrolyte path in film；
Step B5.3：If Pa6=k6*Pa4, Pa5=0,0≤k6≤ 0.05, then pile electrolyte liquid path there is leakage risk；
Step C：Electrolyte path leakproof automatic detection；
Step C1：Close the first electronic valve (3), the second electronic valve (4), the 3rd electronic valve (5), the 4th electronic valve (6)；
Step C2：Leakage self-inspection control and information processing terminal control supply air system operation；
Step C3：Open the first air outlet (9), second air outlet (10) of supply air system；Open the first pneumatic three-way control valve BC paths, close the first pneumatic three-way control valve AC paths, open the second pneumatic three-way control valve BC paths, close second pneumatic Three-way control valve AC paths；
Step C4：After continuous operation, the first air outlet gas pressure Pa of supply air system is read respectively7, the second air-out gas pressure Power Pa8, first gas pressure sensor data Pa9, second gas pressure sensor data Pa10；
Step C5：Judge that pile positive and negative electrode electrolyte path whether there is leakage risk；
Step C5.1：If Pa9=k9*Pa7, Pa10=k10* Pa8,0.95≤k9≤ 1,0.95≤k10≤ 1, then pile positive and negative electrode is electric Solution liquid path air-tightness is good, without leakage risk；
Step C5.2：If Pa9=k9*Pa7, Pa10=k10* Pa8,0≤k9≤ 0.05,0.95≤k10≤ 1, then pile anolyte There is leakage risk in liquid path, pile electrolyte liquid path does not exist leakage risk, and ion exchange membrane structure is being just in pile Often；If Pa9=k9*Pa7, Pa10=k10* Pa8,0.95≤k9≤ 1,0≤k10≤ 0.05, then pile anode electrolyte path do not deposit In leakage risk, there is leakage risk in pile electrolyte liquid path, and ion exchange membrane structure is normal in pile；
Step C5.3：If Pa7=k*Pa8, Pa9=Pa10, 0≤k≤0.05；Or Pa8=k1*Pa7, Pa9=Pa10, 0≤k1≤ 0.05；Then there is physical damage in pile positive and negative electrode electrolyte path intermediate ion exchange membrane, there is the mixed liquid risk of leakage.
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