Anti-leakage detection method for stack electrolyte in all-vanadium redox flow battery energy storage system
An all-vanadium redox flow battery and energy storage system technology, which is applied in the field of anti-leakage detection of the stack electrolyte of the all-vanadium redox flow battery energy storage system, can solve the problems of positive and negative electrolyte mixture, leakage and the like, so as to improve reliability. sexual effect
Active Publication Date: 2019-07-09
湖南德沃普电气股份有限公司
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Problems solved by technology
However, after long-distance transportation and long-term operation of the all-vanadium redox flow battery energy storage system, there are problems of mixed liquid and leakage of positive and negative electrolytes in the process of flowing through the stack.
Patent document CN204649362U describes a zinc-bromine flow energy storage battery leakage detection system, but this method can only be detected after a certain amount of electrolyte leakage, reducing the continuous expansion of the risk of leakage
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[0034] combine Figure 1-2 , illustrate the implementation process of the present invention.
[0035] The anti-leakage detection system for the stack electrolyte of the all-vanadium redox flow battery energy storage system includes: the stack pipeline air supply system, the port pressure test system, and the leakage self-inspection information processing terminal; the stack pipeline air supply system adopts Gas automatic booster pump, arbitrarily adjustable and controllable within the gas pressure range of 0.1Mpa~0.5MPa;
[0036] The first air outlet 1 of the stack pipeline air supply system is connected to the stack positive electrolyte inlet 7 through a high-pressure explosion-proof hose, and the corresponding first air return port 2 is connected to the stack positive electrolyte through a high-pressure explosion-proof hose. The liquid outlets 5 are connected to form a leakage detection circuit of the positive electrolyte passage;
[0037] The second air outlet 3 of the st...
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The invention relates to an all-vanadium flow battery energy storage system electric pile electrolyte solution leakage-proof detection system and method, and the system and method are mainly applied to a standing state and non-running all-vanadium flow battery energy storage system or self-inspection of the all-vanadium flow battery energy storage system before running. The detection system includes: an electric pile pipeline air supply system, a port pressure test system, and a liquid leakage self-inspection information processing terminal. Compared with the prior art, the portable system and the method provided by the invention can reliably, timely and stably detect whether an electrolyte solution leakage risk exists in an all-vanadium flow battery energy storage system electric pile pathway, and improve the reliability of an all-vanadium flow battery energy storage system.
Description
technical field [0001] The invention relates to an all-vanadium redox flow battery energy storage system, in particular to a leak-proof detection method for stack electrolyte of the all-vanadium redox flow battery energy storage system. Background technique [0002] The all-vanadium redox flow battery stack is composed of several single cells connected in series. The several single cells are fixed together by bolts. The electrolyte flows in from the two end plates of the stack and circulates inside the stack. The all-vanadium redox flow battery stack protects and fixes the battery electrodes in terms of material selection and structural design, so as to ensure that the contact area between the vanadium battery electrodes and the electrolyte is consistent during long-term work, thereby stabilizing the working performance of the stack. However, after long-distance transportation and long-term operation of the all-vanadium redox flow battery energy storage system, there are pro...
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IPC IPC(8): H01M8/04664H01M8/0438G01M3/26
CPCG01M3/26H01M8/0438H01M8/04679Y02E60/50
Inventor 魏达刘平平刘杰
Owner 湖南德沃普电气股份有限公司