CN204668400U - A kind of electrolysis unit of all-vanadium redox flow battery electrolyte - Google Patents

A kind of electrolysis unit of all-vanadium redox flow battery electrolyte Download PDF

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Publication number
CN204668400U
CN204668400U CN201520407120.3U CN201520407120U CN204668400U CN 204668400 U CN204668400 U CN 204668400U CN 201520407120 U CN201520407120 U CN 201520407120U CN 204668400 U CN204668400 U CN 204668400U
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Prior art keywords
pile
fluid reservoir
valve
pole fluid
pipeline
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李爱魁
杜涛
马军
胡嘉
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CHONGYANG JINGFAN TECHNOLOGY Co Ltd
Wuhan NARI Ltd
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CHONGYANG JINGFAN TECHNOLOGY Co Ltd
Wuhan NARI Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

Abstract

The utility model relates to a kind of electrolysis unit of all-vanadium redox flow battery electrolyte, at least comprise a pile, described pile is connected with DC power supply, described pile is connected with positive pole fluid reservoir by pipeline, the first cooling device is had by install pipeline between pile and positive pole fluid reservoir, there is positive pump by install pipeline between pile and positive pole fluid reservoir, between pile and positive pump, have the first filter by install pipeline; Described pile is connected with negative pole fluid reservoir by pipeline, the second cooling device is had by install pipeline between pile and negative pole fluid reservoir, there is negative pump by install pipeline between pile and negative pole liquid storage pump, between pile and negative pump, have the second filter by install pipeline.The utility model has that electrolysis effectiveness is good, structure is simple, be convenient to advantages such as controlling, simple to operate and safe.

Description

A kind of electrolysis unit of all-vanadium redox flow battery electrolyte
Technical field
The utility model relates to the electrolysis unit of battery electrolyte, more particularly, relates to a kind of electrolysis unit of all-vanadium redox flow battery electrolyte.
Background technology
1984, the Marria of University of New South Wales proposed the concept of vanadium redox battery, and it is a kind of novel green energy-storing battery.Vanadium cell active material is stored in the fluid reservoir of pile outside, vanadium cell is compared with traditional solid phase storage battery, there is concentration polarization little, large and the easily adjustment of battery capacity, life-span are long, large current density can be tolerated, living solution is renewable to be recycled, and can not produce the advantages such as the discarded object of contaminated environment.Very large advantage has been shown in the energy storage device side being applied to the clean energy resource such as solar energy, wind energy.
When pile operational excellence, the number of V electrolyte and concentration, decide the size of battery capacity.Electrolyte is as the important component part of vanadium cell, and its preparation method has chemical method and electrolysis two kinds.Chemical method prepares V electrolyte, and method is simple, simple equipments, and shortcoming is that slow, each output of solid dissolution is few, and the reducing agent adding such as oxalic acid class is difficult to eradicate.Current chemical method is prepared V electrolyte and is mainly used in laboratory research.Want that continuous production is a large amount of, the V electrolyte of high-quality, use electrochemical process more.
Chinese patent literature CN201220661556.1 reports a kind of electrolysis unit for the preparation of electrolyte of vanadium redox battery and electrolytic cell group, its core concept is electrolysis unit, comprise cathode chamber and anode chamber, the anode chamber and the cathode chamber is separated by barrier film, for just vanadium electrolytic cell intermediate ion exchange membrane may there is damaged etc. defect.It is relatively simple for structure, for just electrolytic process intermediate ion exchange membrane may there is damaged problem, the electrolyte process units that neither one is complete.
Chinese patent literature CN200810012119.5 discloses a kind of preparation of vanadium battery solution or the method for capacity regulating and special purpose device thereof, its core concept is that adopted electrolysis unit comprises electrolytic cell group, cathode cell, storage tank, anode electrolysis liquid storage tank, pipeline and pump, for the preparation of all-vanadium flow battery electrolyte solution with recover the capacity of all-vanadium redox flow battery system, the problems such as, precipitation, impurity too high for electrolyte temperature contingent in electrolytic process are not considered.
Utility model content
The technical problems to be solved in the utility model is, for the defect that above-mentioned amberplex may destroy, electrolytic process temperature is too high, precipitated impurities is too much of prior art, provides a kind of electrolysis unit of all-vanadium redox flow battery electrolyte.
The utility model solves the technical scheme that its technical problem adopts: the electrolysis unit constructing a kind of all-vanadium redox flow battery electrolyte, at least comprise a pile, described pile is connected with DC power supply, described pile is connected with positive pole fluid reservoir by pipeline, the first cooling device is had by install pipeline between pile and positive pole fluid reservoir, there is positive pump by install pipeline between pile and positive pole fluid reservoir, between pile and positive pump, have the first filter by install pipeline; Described pile is connected with negative pole fluid reservoir by pipeline, the second cooling device is had by install pipeline between pile and negative pole fluid reservoir, there is negative pump by install pipeline between pile and negative pole liquid storage pump, between pile and negative pump, have the second filter by install pipeline.
By such scheme, the pipeline be connected is provided with first flow monitoring device between described pile with positive pole fluid reservoir, the pipeline that described pile connects between being connected with negative pole fluid reservoir is provided with the second flow monitoring device.
By such scheme, the top and bottom of described positive pole fluid reservoir is respectively arranged with flange-interface, connects positive pole fluid reservoir is connected positive pole fluid reservoir flange-interface with pipeline one end of pile, and one end connects pile in addition; The top and bottom of described negative pole fluid reservoir is respectively arranged with flange-interface, connects negative pole fluid reservoir is connected negative pole fluid reservoir flange-interface with pipeline one end of pile, and one end connects pile in addition.
By such scheme, the first described filter two ends are provided with the first valve and the second valve, the 3rd valve is provided with between first filter and positive pump, the 4th valve is provided with between positive pump and positive pole fluid reservoir, be provided with the 5th valve and the 6th valve between positive pump and pile, the first sample tap place is provided with the 7th valve.
By such scheme, the 8th valve is provided with between described pile and the second cooling device, second filter two ends are provided with the 8th valve and the 9th valve, the tenth valve is provided with between second filter and negative pump, be provided with the 11 valve between negative pump and negative pole fluid reservoir, between negative pump and pile, be provided with the 12 valve and the 13 valve.
By such scheme, described positive pole fluid reservoir is one or more, and negative pole fluid reservoir is one or more.
Implement the electrolysis unit of a kind of all-vanadium redox flow battery electrolyte of the present utility model, there is following beneficial effect:
1, the utility model has that electrolysis effectiveness is good, structure is simple, be convenient to control, be simple to operately convenient to with safety advantages such as controlling.
2, on the device that provides of the utility model with cooling and filter, effectively can remove issuable precipitation in electrolytic process, impurity and reduce the too high problem of electrolyte temperature, improving the quality of electrolyte of vanadium redox battery.
3, all-vanadium redox flow battery electrolyte is as one of the core material of whole battery, and its production technology and production cost decide the cost of vanadium cell to a great extent.The utility model provides a kind of simple and easy, durable and process units of the electrolyte of vanadium redox battery of safety, can be used for the large-scale electrolysis of electrolyte, contributes to the reduction of electrolyte production cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the electrolysis unit of a kind of all-vanadium redox flow battery electrolyte of the utility model;
In figure: 1, pile, 2, positive pole fluid reservoir, 3, negative pole fluid reservoir, 4, positive pump, 5, negative pump, 6, DC power supply, 7, first cooling device, 8, second cooling device, 9, first filter, 10, second filter, 11, first valve, 12, second valve, 13, 3rd valve, 14, 4th valve, 15, 5th valve, 16, 6th valve, 17, 7th valve, 18, 8th valve, 19, 9th valve, 20, tenth valve, 21, 11 valve, 22, 12 valve, 23, 13 valve, 24, 14 valve, 25, first sample tap, 26, second sample tap, 27, first flow monitoring device, 28, second flow monitoring device.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As shown in Figure 1, in electrolysis unit first embodiment of a kind of all-vanadium redox flow battery electrolyte of the present utility model, at least comprise a pile 1, pile 1 is connected with positive pole fluid reservoir 2 by pipeline, the first cooling device 7 is had by install pipeline between pile 1 and positive pole fluid reservoir 2, there is positive pump 4 by install pipeline between pile 1 and positive pole fluid reservoir 2, between pile 1 and positive pump 4, have the first filter 9 by install pipeline; Pile 1 is connected with negative pole fluid reservoir 3 by pipeline, the second cooling device 8 is had by install pipeline between pile 1 and negative pole fluid reservoir 3, there is negative pump 5 by install pipeline between pile 1 and negative pole liquid storage pump 3, between pile 1 and negative pump 5, have the second filter 10 by install pipeline.
The pipeline be connected between pile 1 with positive pole fluid reservoir 2 is provided with first flow monitoring device 27, the pipeline that pile 1 connects between being connected with negative pole fluid reservoir 3 is provided with the second flow monitoring device 28; The top and bottom of positive pole fluid reservoir 2 is respectively arranged with flange-interface, connects positive pole fluid reservoir 2 is connected positive pole fluid reservoir 2 flange-interface with pipeline one end of pile 1, and other one end of pipeline connects pile 1; The top and bottom of negative pole fluid reservoir 3 is respectively arranged with flange-interface, connects negative pole fluid reservoir 3 is connected negative pole fluid reservoir flange-interface with pipeline one end of pile 1, and one end connects pile 1 in addition.
The first valve 11 and the second valve 12 is provided with between pile 1 and the first filter 9, the 3rd valve 13 is provided with between first filter 9 and positive pump 4, the 4th valve 14 is provided with between positive pump 4 and positive pole fluid reservoir 2, the 5th valve 15 is provided with and the 6th valve 16, first sample tap 25 place is provided with the 7th valve 17 between positive pump 4 and pile 1.The 8th valve 18 is provided with between pile 1 and the second cooling device 8, the 8th valve 18 and the 9th valve 19 is provided with between pile 1 and the second filter 9, the tenth valve 20 is provided with between second filter 10 and negative pump 5, the 11 valve 21 is provided with between negative pump 5 and negative pole liquid storage pump 3, be provided with the 12 valve the 22 and the 13 valve 23, the second sample tap 26 place between negative pump 5 and pile 1 and be provided with the 14 valve 24.
All electrolyte is stored in positive pole fluid reservoir 2 and negative pole fluid reservoir 3, the top and bottom of positive pole fluid reservoir 2 all has flange-interface, connect pile 1 and positive pole fluid reservoir 2 by pipeline, one end of pipeline connects the flange-interface of positive pole fluid reservoir 2, and one end connects pile 1 in addition; The top and bottom of negative pole fluid reservoir 3 all has flange-interface, connects pile 1 and negative pole fluid reservoir 3 by pipeline, and one end of pipeline connects the flange-interface of negative pole fluid reservoir 3, and one end connects pile 1 in addition; The 4th valve respectively on opening conduits path and positive pump, the tenth valve and negative pump, make electrolyte circulate in systems in which, set electric current, and DC power supply 6 to electrolyte charging, thus realizes the electrolysis preparation of electrolyte at a low price.
Operation principle is as follows: electrolyte flows out respectively and enters pile 1 from positive pole fluid reservoir 2 and negative pole fluid reservoir 3, when needs filter, open the 3rd valve 13 and the second valve 12 of control first filter 9, open the 9th valve 19 and the 8th valve 18 of control second filter 10 simultaneously, close the 5th valve 15 leading to pile 1 respectively, 6th valve 16, 11 valve the 21 and the 12 valve 22, the electrolyte of positive pole fluid reservoir 2 is made to flow in positive pole fluid reservoir 2 by the first filter 9, electrolyte in negative pole fluid reservoir 3 flows in negative pole fluid reservoir 3 by the second filter 10, when not needing to filter, close valve i.e. the second valve 12 and the 3rd valve 13 at the first filter 9 two ends, close valve i.e. the 8th valve 18 and the 9th valve 19 at the second filter 10 two ends simultaneously, open valve i.e. the first valve 11 and the 6th valve 16 of pile 1 both sides, make electrolyte flow into positive pole fluid reservoir 2 respectively with negative pole fluid reservoir 3 by pile 1, in electrolyte flow process, set electric current, open the object that DC power supply 6 reaches electrolysis, after electrolysis terminates, anode electrolyte returns in positive pole fluid reservoir by pipeline, and electrolyte liquid is returned in negative pole fluid reservoir by pipeline.
The tetravalence vanadic sulfate solution that 400L concentration is 1.8M is passed into respectively in positive pole fluid reservoir 2 and negative pole fluid reservoir 3, filter operation: the 4th valve 14 opening positive pole fluid reservoir lower end, also valve i.e. the second valve 12 and the 3rd valve 13 at the first filter 9 two ends is opened, open the 11 valve 21 of negative pole fluid reservoir 3 lower end, also open valve i.e. the 9th valve 19 and the tenth valve 20 at the second filter 10 two ends, close other valve.Start positive pump 4 and negative pump 5, and regulate its flow, make both positive and negative polarity piping flow consistent, the electrolyte of positive pole fluid reservoir 2 flows in positive pole fluid reservoir 2 by the first filter 9, the electrolyte of negative pole fluid reservoir 3 flows in negative pole fluid reservoir 3 by the second filter 10, to remove impurity in electrolyte or solid granulates.
Electrolysis procedure: valve i.e. the second valve 12 and the 3rd valve 13 of closing the first filter 9 two ends, close valve i.e. the 8th valve 18 and the 9th valve 19 at the second filter 10 two ends simultaneously, open all valves except the second valve 12, the 3rd valve 13, the 8th valve 18, the 9th valve 19, the 7th valve the 17 and the 14 valve 24, make electrolyte can flow into positive pole fluid reservoir 2 with negative pole fluid reservoir 3 by pile 1.Start positive pump 4 and negative pump 5, and regulate its flow, make both positive and negative polarity piping flow consistent.After the flowing of both positive and negative polarity electrolyte normal circulation, open DC power supply 6, set electric current, start electrolysis, in the process of reaction, anode electrolyte loses electronics, and the tetravalent vanadium ion in anode electrolyte becomes pentavalent vanadium ion, and electrolyte liquid obtains electronics, tetravalent vanadium ion in electrolyte liquid becomes trivalent vanadium ion, by the time, when reaction proceeds to that in negative solution, tetravalent vanadium ion all converts trivalent vanadium ion to, reaction terminates, and power supply quits work.Close both positive and negative polarity pump, close all valves, electrolysis completes.In electrolytic process, both positive and negative polarity electrolyte can sample respectively by the first sample tap 25, second sample tap 26.After reaction terminates, anode electrolyte returns in positive pole fluid reservoir 2 by pipeline, and electrolyte liquid is returned in negative pole fluid reservoir 3 by pipeline.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, also can make a lot of form, these all belong within protection of the present utility model.

Claims (6)

1. the electrolysis unit of an all-vanadium redox flow battery electrolyte, it is characterized in that, at least comprise a pile, described pile is connected with DC power supply, described pile is connected with positive pole fluid reservoir by pipeline, there is the first cooling device by install pipeline between pile and positive pole fluid reservoir, between pile and positive pole fluid reservoir, have positive pump by install pipeline, between pile and positive pump, have the first filter by install pipeline; Described pile is connected with negative pole fluid reservoir by pipeline, the second cooling device is had by install pipeline between pile and negative pole fluid reservoir, there is negative pump by install pipeline between pile and negative pole liquid storage pump, between pile and negative pump, have the second filter by install pipeline.
2. the electrolysis unit of all-vanadium redox flow battery electrolyte according to claim 1, it is characterized in that, the pipeline be connected between described pile with positive pole fluid reservoir is provided with first flow monitoring device, the pipeline that described pile connects between being connected with negative pole fluid reservoir is provided with the second flow monitoring device.
3. the electrolysis unit of all-vanadium redox flow battery electrolyte according to claim 1, it is characterized in that, the top and bottom of described positive pole fluid reservoir is respectively arranged with flange-interface, connect positive pole fluid reservoir is connected positive pole fluid reservoir flange-interface with pipeline one end of pile, one end connects pile in addition; The top and bottom of described negative pole fluid reservoir is respectively arranged with flange-interface, connects negative pole fluid reservoir is connected negative pole fluid reservoir flange-interface with pipeline one end of pile, and one end connects pile in addition.
4. the electrolysis unit of all-vanadium redox flow battery electrolyte according to claim 2, it is characterized in that, the first described filter two ends are provided with the first valve and the second valve, the 3rd valve is provided with between first filter and positive pump, the 4th valve is provided with between positive pump and positive pole fluid reservoir, be provided with the 5th valve and the 6th valve between positive pump and pile, the first sample tap place is provided with the 7th valve.
5. the electrolysis unit of all-vanadium redox flow battery electrolyte according to claim 2, it is characterized in that, the 8th valve is provided with between described pile and the second cooling device, second filter two ends are provided with the 8th valve and the 9th valve, the tenth valve is provided with between second filter and negative pump, be provided with the 11 valve between negative pump and negative pole fluid reservoir, between negative pump and pile, be provided with the 12 valve and the 13 valve.
6. the electrolysis unit of all-vanadium redox flow battery electrolyte according to claim 1, is characterized in that, described positive pole fluid reservoir is one or more, and negative pole fluid reservoir is one or more.
CN201520407120.3U 2015-06-12 2015-06-12 A kind of electrolysis unit of all-vanadium redox flow battery electrolyte Active CN204668400U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106300328A (en) * 2016-08-31 2017-01-04 安徽远东船舶有限公司 A kind of by new forms of energy as the vanadium cell electric supply system system of standby energy storage
CN108461661A (en) * 2018-04-22 2018-08-28 赣州天目领航科技有限公司 A kind of novel pile vanadium energy storage system
CN109841875A (en) * 2019-03-21 2019-06-04 国网新源张家口风光储示范电站有限公司 A kind of all-vanadium flow battery energy-storage module electrolyte valence state balance control method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106300328A (en) * 2016-08-31 2017-01-04 安徽远东船舶有限公司 A kind of by new forms of energy as the vanadium cell electric supply system system of standby energy storage
CN108461661A (en) * 2018-04-22 2018-08-28 赣州天目领航科技有限公司 A kind of novel pile vanadium energy storage system
CN109841875A (en) * 2019-03-21 2019-06-04 国网新源张家口风光储示范电站有限公司 A kind of all-vanadium flow battery energy-storage module electrolyte valence state balance control method

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