CN105789517B - A kind of explosion-proof valve for all-vanadium flow battery - Google Patents
A kind of explosion-proof valve for all-vanadium flow battery Download PDFInfo
- Publication number
- CN105789517B CN105789517B CN201610169577.4A CN201610169577A CN105789517B CN 105789517 B CN105789517 B CN 105789517B CN 201610169577 A CN201610169577 A CN 201610169577A CN 105789517 B CN105789517 B CN 105789517B
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- Prior art keywords
- seal
- flow battery
- explosion
- vanadium flow
- valve body
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Classifications
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/12—Alarms or signals
-
- 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
- Y02E60/10—Energy storage using batteries
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a kind of explosion-proof valve for all-vanadium flow battery, including：Valve body, valve body include housing and the first seal being located in housing, and the end face of first seal one end and the internal partial wall of housing surrounded air cavity jointly；First seal has guide rail hole, and valve body also includes second seal；Valve body also includes elastic component, in the presence of elastic component, the head of second seal seals air inlet, and when accumulating in the gas at air inlet and overcoming the active force of elastic component, the head of second seal, which leaves air inlet and allowed gas into air cavity and passing through and cross the gas outlet of air cavity, flows out；Filter has the filter chamber for accommodating alkaline filter liquid, and filter chamber is communicated by outlet passageway with the gas outlet of valve body.Present invention solves the technical problem that the shortcomings that being to overcome existing liquid flow battery liquid storage tank easily to be damaged or exploded by air pressure, there is provided a kind of explosion-proof valve for all-vanadium flow battery, pressure release can be carried out to fluid reservoir automatically and air will not be polluted.
Description
Technical field
The present invention relates to liquid cell field.A kind of specially explosion-proof valve for all-vanadium flow battery.
Background technology
All-vanadium flow battery is a kind of new battery, due to its green characteristic, has been obtained more and more extensive
Use.All-vanadium flow battery is mainly made up of pile, electrolyte and control system, and its operation principle is：There to be different valence state
Vanadium ion solution respectively as positive pole and the active material of negative pole, be separately stored in respective electrolyte storage tank.Two kinds of electricity
Liquid is solved under the driving of respective pump, the negative or positive electrode for flowing through battery is separately circulated by respective electrolyte storage tank,
And oxidation and reduction reaction occurs at ionic membrane both ends, realize the discharge and recharge to battery.
The electrolyte of all-vanadium flow battery needs to seal and air exclusion, if sealing is improper, electrolyte contacts air meeting
Being oxidized causes to fail, and causes the energy content of battery to lose, and makes the energy after battery charging and discharging low energy efficiency, or even charging complete
It is wasted, can not discharges.Meanwhile in the case where external loading short circuit or charging equipment are broken down, battery short circuit or electricity
When pond overcharges, the temperature of electrolyte can steeply rise, and bubbing, and gas carries certain acidity.Now, the liquid storage of sealing
Tank because the accumulation of gas can produce expansion, if can not timely pressure release, fluid reservoir weak seal position may be made in air pressure
The lower breakaway of effect, electrolyte and sour gas is caused to leak, as air pressure continues rise and may result in fluid reservoir to explode.
The content of the invention
Present invention solves the technical problem that it is to overcome existing all-vanadium flow battery in short circuit or the feelings to overcharge
The shortcomings that easily causing fluid reservoir to be damaged or exploded by air pressure under condition, there is provided a kind of explosion-proof valve for all-vanadium flow battery, can
Automatically pressure release is carried out to fluid reservoir and air will not be polluted.
The explosion-proof valve for all-vanadium flow battery of the present invention, including：
Valve body, the valve body include housing and the first seal that is located in the housing, the first seal it is outer
Wall coordinates with the housing seal, and the first seal is limited axially with respect to the housing, the first seal
The end face of one end and the internal partial wall of the housing surrounded air cavity jointly；The wall of the housing, which is provided with, allows the all-vanadium flow
Gas caused by battery enters the air inlet for crossing air cavity and allows the gas to flow out the gas outlet for crossing air cavity；It is described
First seal has guide rail hole, and the valve body also includes second seal, and the second seal has bar portion and head, institute
State bar portion to penetrate the guide rail hole and can move in the guide rail hole, the inwall of the outer wall of the bar portion and the guide rail hole is close
Envelope coordinates；The valve body also includes elastic component, and in the presence of the elastic component, the head of the second seal seals described
Air inlet, when accumulating in the gas at the air inlet and overcoming the active force of the elastic component, the second seal
Head leave the air inlet allowed gas into air cavity and pass through cross air cavity gas outlet flow out；
Filter, the filter have the filter chamber for accommodating alkaline filter liquid, and the filter chamber is led to by outlet
Road communicates with the gas outlet of the valve body.
Preferably, the valve body is additionally included in the alarm that the air pressure crossed in air cavity exceedes setting value alarm.
Preferably, the explosion-proof valve for all-vanadium flow battery also includes the top cover positioned at the shell one end, institute
State that the end of housing is relative with the one end for being provided with air cavity, and the alarm is located in the top cover, the alarm includes electricity
Pond, buzzer, wire and touch switch, the tentacle of the touch switch can in the presence of the elastic component with battery and buzzing
Device is connected so that buzzer rings.
Preferably, the elastic component is located in the orbit hole of the first seal, one end and the second seal
Bar portion offset, the other end offsets with the touch switch.
Preferably, the top cover is detachably connected with the housing so that the elastic component can be replaced.
Preferably, the touch switch is provided with positioning convex, the elastic component towards the side of the second seal
For compression spring, the one end of the compression spring is enclosed on the positioning convex.
It is used to carry out the spacing of axial limiting to the first seal preferably, the inwall of the valve body housing is provided with
Projection, the spacing preiection offset with the first seal close to described one end for crossing air cavity.
Preferably, the air inlet of the valve body is communicated with the fluid reservoir of the all-vanadium flow battery by inlet channel.
Preferably, the valve body is structure as a whole with filter.
Preferably, exhaust outlet is provided between the side wall and roof of the filter.
Compared to the prior art the explosion-proof valve for all-vanadium flow battery of the present invention, has the advantages that：
1st, the explosion-proof valve for all-vanadium flow battery of the invention, can in the case of all-vanadium flow battery normal use
Fluid reservoir is sealed, electrolyte contacts air is prevented and goes bad.In the case where overload occurs or overcharges, sour gas can be guided
Body is discharged out of fluid reservoir, and sour gas is carried out to filter neutralisation treatment removing harmful position therein, not only ensure that complete
The security of vanadium flow battery can also prevent its caused sour gas pollution air.
2nd, the air pressure that the valve body of the explosion-proof valve for all-vanadium flow battery of the invention was additionally included in air cavity exceedes and set
The alarm of definite value alarm.In the case of air inlet open, the air pressure and the fluid reservoir of all-vanadium flow battery crossed in air cavity
Interior air pressure is identical, and it is that air pressure in the fluid reservoir of all-vanadium flow battery exceedes and set that the air pressure crossed in air cavity, which exceedes setting value,
Definite value.After hearing alarm, operating personnel can be handled all-vanadium flow battery in time.
3rd, the alarm of the explosion-proof valve for all-vanadium flow battery of the invention has touch switch, elastic component one end and institute
The bar portion for stating second seal offsets, and the other end offsets with the touch switch, and the change of air pressure causes the shape of elastic component to become
To change, the stress deformation of elastic component can promote touch switch to act, when the deformation of elastic component reaches the degree of setting, touch switch
Closure, makes alarm equipment alarm.This design does not need barometrical participation, simple and reliable for structure.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the explosion-proof valve for all-vanadium flow battery of one embodiment of the invention.
Fig. 2 is the top view of the explosion-proof valve for all-vanadium flow battery in Fig. 1.
Fig. 3 is the decomposition diagram of the explosion-proof valve for all-vanadium flow battery in Fig. 1.
Fig. 4 is section view of the explosion-proof valve for all-vanadium flow battery of one embodiment of the invention along the line A-A in Fig. 2
Figure.
Fig. 5 is the schematic diagram of the alarm of the explosion-proof valve for all-vanadium flow battery of one embodiment of the invention.
Reference
1 valve body, 11 housings, 12 first seals, 121 guide rail holes, 13 cross air cavity, and 14 air inlets, 15 gas outlets, 16 is spacing
Projection, 17 second seals, 171 bar portions, 172 heads；
2 filters, 21 filter chambers, 22 side walls, 23 roofs, 24 exhaust outlets；
3 inlet channels；
4 outlet passageways；
5 top covers, 51 batteries, 52 buzzers, 53 wires, 54 touch switch, 541 tentacles, 542 positioning convex.
Embodiment
Fig. 1 is the dimensional structure diagram of the explosion-proof valve for all-vanadium flow battery of one embodiment of the invention.Fig. 2 is
The top view of the explosion-proof valve for all-vanadium flow battery in Fig. 1.As depicted in figs. 1 and 2, it is of the invention to be used for all-vanadium flow electricity
The explosion-proof valve in pond, including valve body 1 and filter 2, valve body 1 are used to control the gas in all-vanadium flow battery fluid reservoir, filtering
Device 2 is used to carry out filtering neutralization to sour gas.Pass through between the air inlet 14 and the fluid reservoir of all-vanadium flow battery of valve body 1
Inlet channel 3 is connected.In the case where external loading short circuit or charging equipment are broken down, the temperature of electrolyte can be drastically
Rise, and separate out sour gas, sour gas enters in inlet channel 3.
As shown in Figure 3 and Figure 4, the valve body 1 includes housing 11 and the first seal 12 being located in the housing 11, institute
The outer wall and the housing 11 sealing for stating first seal 12 coordinate, and the first seal 12 is axially with respect to the housing
11 are limited, and the end face of described one end of first seal 12 surrounded air cavity 13 jointly with the internal partial wall of the housing 11.The
One seal 12 can be by being embodied in various ways the restriction with the relative position of housing 11, as shown in figure 3, valve body 1 housing 11
Inwall is provided with a pair of spacing preiections 16 for being used to carry out the first seal 12 axial limiting being oppositely disposed, limit convex
Rise 16 along inwall the segment distance of circumferentially extending one, the spacing preiection 16 and the first seal 12 cross air cavity 13 close to described
One end offset.Certainly, in other embodiments, spacing preiection 16 can also be entirety along the inwall projection of one week.
The wall of the housing 11, which is provided with, allows gas caused by the all-vanadium flow battery to cross entering for air cavity 13 into described
Gas port 14 and the permission gas flow out the gas outlet 15 for crossing air cavity 13.The first seal 12 has guide rail hole 121,
The valve body 1 also includes second seal 17, and the second seal 17 has bar portion 171 and head 172, the bar portion 171
Penetrate the guide rail hole 121 and can be moved in the guide rail hole 121, the outer wall of the bar portion 171 and the guide rail hole 121
Inner wall sealing coordinates.
The valve body 1 also includes elastic component (not shown), in the presence of the elastic component, the second seal
17 head 172 seals the air inlet 14.Elastic component is is had the elastic component of tension force, in the present embodiment, be by compression
Compression spring.When the gas for entering inlet channel 3 and accumulating at the air inlet 14 overcomes the effect of the elastic component
During power, guide rail hole 121 of the second seal 17 along the first seal 12 moves, the head of the second seal 17
172, which leave the air inlet 14, allowed gas into air cavity 13 and was flowed out by the gas outlet 15 of air cavity 13 excessively.
The filter 2 have accommodate alkaline filter liquid filter chamber 21, the filter chamber 21 by outlet passageway 4 with
The gas outlet 15 of the valve body 1 communicates.Sour gas, which is directed into, to be neutralized in alkaline filter liquid and is handled accordingly, from
And the harmful substance in sour gas is eliminated, it is discharged into air.
The explosion-proof valve in all-vanadium flow battery of the present invention, it is salable in the case of all-vanadium flow battery normal use
Fluid reservoir, prevent electrolyte contacts air and go bad.Overload is occurring or in the case of overcharging, can guide sour gas from
Discharged in fluid reservoir, and sour gas is carried out to filter neutralisation treatment removing harmful substance therein, not only ensure that full vanadium liquid
The security of galvanic battery can also prevent its caused sour gas pollution air.
Preferably, the valve body 1 is additionally included in the alarm that the air pressure crossed in air cavity 13 exceedes setting value alarm
Device, in the case where air inlet 14 is opened, the air pressure and the air pressure in the fluid reservoir of all-vanadium flow battery crossed in air cavity 13 are phases
With, it is that the air pressure in the fluid reservoir of all-vanadium flow battery exceedes setting value that the air pressure crossed in air cavity 13, which exceedes setting value,.
In the present embodiment, the explosion-proof valve for all-vanadium flow battery also includes the top cover 5 positioned at described one end of housing 11,
The end of the housing 11 is relative with the one end for being provided with air cavity 13, and the alarm is located in the top cover 5.The top cover 5
It is detachably connected with the housing 11, it is detachably connected to be realized by various existing means.In mounted shape
Under state, top cover is fixed with housing 11, and the one end of top cover 5 offsets with first seal 12.As shown in figure 5, the alarm includes setting
Battery 51, buzzer 52, wire 53 and touch switch 54 in top cover 5, the tentacle 541 of the touch switch 54 can be described
Connected respectively with battery 51 and buzzer 52 in the presence of elastic component so that the ring of buzzer 52 and alarm.After hearing alarm,
Operating personnel can be handled all-vanadium flow battery in time.
The elastic component is compression spring in the present embodiment, in the orbit hole of the first seal 12, one end
Offseted with the bar portion 171 of the second seal 17, the other end offsets with the touch switch 54.The change of air pressure causes elasticity
The change in shape of part, the stress deformation of elastic component can promote touch switch 54 to act, and reach the journey of setting in the deformation of elastic component
When spending, touch switch 54 closes, and makes alarm equipment alarm.This design does not need barometrical participation, simple and reliable for structure.
Pretightning force of the alarm of alarm depending on spring, different size, the spring of unlike material have different pretensions
Power, the i.e. replaceable spring of top cover is removed, realizes and is alarmed under different atmospheric pressure values, so as to form different level of securitys, in addition,
The also replaceable new spring in spring aging.In the present invention, because first seal and second seal realize sealing,
It therefore, there is no need to consider the corrosion resistance of elastic component, common spring may act as the elastic component in the present invention.
As preferable scheme, the touch switch 54 is provided with positioning convex towards the side of the second seal 17
542, the one end of the compression spring is enclosed on the positioning convex 542, can prevent spring from producing rolling during being compressed
It is dynamic, so as to improve its stability.
Certainly, in other examples, alarm can also be not arranged in the inside of the housing of valve body, but be located at outer
Portion, now, alarm can detect the air pressure in air cavity, i.e. gas in all-vanadium flow battery fluid reservoir by barometer
Pressure, is alarmed when barometrical numerical value reaches setting value.
As preferable scheme, the housing of the housing 11 and filter 2 of the valve body 1 is structure as a whole, specially valve
One side wall of body 1 and a side wall 22 of filter 2 can be integral, so that of the invention is used for all-vanadium flow battery
Anti-explosion valve structure it is compacter.
Filter 2 is provided with roof 23, can prevent dust from entering filtered fluid, the side wall 22 and roof 23 of filter 2
Between be provided with exhaust outlet 24, will be discharged into by the gas after filtration treatment in air.In the present embodiment, roof 23 is by symmetrical
Two parts are formed, and outlet passageway is passed through from the middle part of roof 23 and extend under the liquid level of the filtered fluid in filter chamber.
Above example is only the exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art make various in the essence and protection domain of the present invention to the present invention
Modification or equivalent substitution are also within the scope of the present invention.
Claims (10)
- A kind of 1. explosion-proof valve for all-vanadium flow battery, it is characterised in that including：Valve body, the valve body include housing and the first seal that is located in the housing, the outer wall of the first seal with The housing seal coordinates, and the first seal is limited axially with respect to the housing, described first seal one end The internal partial wall of end face and the housing surrounded air cavity jointly；The wall of the housing, which is provided with, allows the all-vanadium flow battery Caused gas enters the air inlet for crossing air cavity and allows the gas to flow out the gas outlet for crossing air cavity；Described first Seal has guide rail hole, and the valve body also includes second seal, and the second seal has bar portion and head, the bar Portion penetrates the guide rail hole and can moved in the guide rail hole, and the inner wall sealing of the outer wall of the bar portion and the guide rail hole is matched somebody with somebody Close；The valve body also includes elastic component, and in the presence of the elastic component, the head of the second seal seals the air inlet Mouthful, when accumulating in the gas at the air inlet and overcoming the active force of the elastic component, the head of the second seal Leave the air inlet and allowed gas into air cavity and the gas outlet outflow by crossing air cavity in portion；Filter, the filter have accommodate alkaline filter liquid filter chamber, the filter chamber by outlet passageway with The gas outlet of the valve body communicates.
- 2. the explosion-proof valve according to claim 1 for all-vanadium flow battery, it is characterised in that the valve body is additionally included in The air pressure crossed in air cavity exceedes the alarm of setting value alarm.
- 3. the explosion-proof valve according to claim 2 for all-vanadium flow battery, it is characterised in that described to be used for all-vanadium flow The explosion-proof valve of battery also includes the top cover positioned at the shell one end, and the housing is provided with one end of the top cover and was provided with gas One end of chamber is relative, and the alarm is located in the top cover, and the alarm is opened including battery, buzzer, wire and shake-up Close, the tentacle of the touch switch can be connected so that buzzer rings in the presence of the elastic component with battery and buzzer Ring.
- 4. the explosion-proof valve according to claim 3 for all-vanadium flow battery, it is characterised in that the elastic component is located at institute State in the orbit hole of first seal, one end and the bar portion of the second seal offset, the other end and the touch switch phase Support.
- 5. the explosion-proof valve according to claim 4 for all-vanadium flow battery, it is characterised in that the top cover and the shell Body is detachably connected so that the elastic component can be replaced.
- 6. the explosion-proof valve according to claim 5 for all-vanadium flow battery, it is characterised in that the touch switch direction The side of the second seal is provided with positioning convex, and the elastic component is compression spring, the one end set of the compression spring On the positioning convex.
- 7. the explosion-proof valve for all-vanadium flow battery according to any one of claim 1-6, it is characterised in that the valve The inwall of body shell body be provided be used for the first seal carry out axial limiting spacing preiection, the spacing preiection with it is described First seal offsets close to described one end for crossing air cavity.
- 8. the explosion-proof valve for all-vanadium flow battery according to any one of claim 1-6, it is characterised in that the valve The air inlet of body is communicated with the fluid reservoir of the all-vanadium flow battery by inlet channel.
- 9. the explosion-proof valve for all-vanadium flow battery according to any one of claim 1-6, it is characterised in that the valve Body is structure as a whole with filter.
- 10. the explosion-proof valve for all-vanadium flow battery according to any one of claim 1-6, it is characterised in that described Exhaust outlet is provided between the side wall and roof of filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610169577.4A CN105789517B (en) | 2016-03-22 | 2016-03-22 | A kind of explosion-proof valve for all-vanadium flow battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610169577.4A CN105789517B (en) | 2016-03-22 | 2016-03-22 | A kind of explosion-proof valve for all-vanadium flow battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105789517A CN105789517A (en) | 2016-07-20 |
| CN105789517B true CN105789517B (en) | 2018-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610169577.4A Active CN105789517B (en) | 2016-03-22 | 2016-03-22 | A kind of explosion-proof valve for all-vanadium flow battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105789517B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185829B (en) * | 2019-04-29 | 2020-06-19 | 比亚迪股份有限公司 | Explosion-proof valve, battery package and vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2257079Y (en) * | 1996-05-16 | 1997-06-25 | 黎福根 | Explosion-proof safety exhaust valve for sealed battery without maintaining |
| CN2689469Y (en) * | 2004-03-22 | 2005-03-30 | 舟山市虹达特种橡胶制品有限公司 | Safety valve of free-maintaining valve-controlled sealing plumbous acid accumulator |
| CN103390738A (en) * | 2012-05-25 | 2013-11-13 | 骆驼集团华中蓄电池有限公司 | Safety valve of storage battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4959657B2 (en) * | 2008-09-19 | 2012-06-27 | 東芝照明プレシジョン株式会社 | Sealing device and sealed container |
-
2016
- 2016-03-22 CN CN201610169577.4A patent/CN105789517B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2257079Y (en) * | 1996-05-16 | 1997-06-25 | 黎福根 | Explosion-proof safety exhaust valve for sealed battery without maintaining |
| CN2689469Y (en) * | 2004-03-22 | 2005-03-30 | 舟山市虹达特种橡胶制品有限公司 | Safety valve of free-maintaining valve-controlled sealing plumbous acid accumulator |
| CN103390738A (en) * | 2012-05-25 | 2013-11-13 | 骆驼集团华中蓄电池有限公司 | Safety valve of storage battery |
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| Publication number | Publication date |
|---|---|
| CN105789517A (en) | 2016-07-20 |
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Effective date of registration: 20220718 Address after: 511470 No.268, Shadong street, Xinsha village, Dagang Town, Nansha District, Guangzhou City, Guangdong Province Patentee after: GUANGZHOU ZHIYUAN NEW MATERIAL TECHNOLOGY CO.,LTD. Address before: 511450 No. 104, building 4, fumen garden, No. 290, Shinan Road, Huangge Town, Nansha District, Guangzhou, Guangdong Province Patentee before: GUANGDONG WEIYABANG NEW ENERGY TECHNOLOGY Co.,Ltd. |
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