CN102800831B - Safety catalyzing valve for lead-acid storage battery - Google Patents
Safety catalyzing valve for lead-acid storage battery Download PDFInfo
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- CN102800831B CN102800831B CN201210321438.0A CN201210321438A CN102800831B CN 102800831 B CN102800831 B CN 102800831B CN 201210321438 A CN201210321438 A CN 201210321438A CN 102800831 B CN102800831 B CN 102800831B
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- catalyst
- burst disk
- valve body
- valve
- safety device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention provides a safety catalyzing valve for a lead-acid storage battery. The safety catalyzing valve comprises a valve body, wherein the upper part of the valve body is hollow, and internally provided with a pneumatic safety valve of the lead-acid storage battery, and the lower part of the valve body is provided with an installing seat for a catalyst; a ventilating hole in communication with the pneumatic safety valve is arranged between the installing seat and the pneumatic safety device; an installing hole for the catalyst is arranged in the installing seat and filled with the catalyst, and a filtering layer is arranged outside the catalyst; and the catalyst is the catalyst for catalyzing hydrogen and oxygen to react to generate water. According to the safety catalyzing valve, the catalyst is filled in the lead-acid storage battery in a relatively reasonable mode with a relatively reasonable structure; the characteristics of the structure of the valve, the structure of the pneumatic safety device and the installing structure of the catalyst are organically and integrally fused; the safety catalyzing device is convenient to assemble and install without influence to the internal structure of the storage battery; and the catalyst has a long service life and high service efficiency, so water loss and floating current of the battery can be relatively reduced.
Description
Technical field
The present invention relates to the valve be used on analysing valve control type lead-acid accumulator battery.
Background technology
The lead acid accumulator purposes that the present invention applies generally has standby type, accumulation energy type, high temperature modification, power type, actuated type etc.
Wherein standby type, accumulation energy type and high temperature modification battery are floating charge service condition, easily occur that electric current is excessive, internal temperature crosses high defect during battery float.These defects directly cause battery thermal runaway and end-of-life.
Power type, actuated type battery, for recycling condition, have more water produced hydrogen and oxygen by electrolysis and discharge battery in battery use procedure, battery is often because dehydration too much occurs end-of-life.After in environment for use, density of hydrogen reaches certain value, easily blast causes accident; Water must be added for increasing battery life.If the lead acid accumulator of non-maintaining type needs often to add water, that just loses maintenance free cell design original intention.
Catalyst is used to increase battery life, improving the principle of battery performance is: a part of oxygen that anode produces before arriving at negative pole with the unnecessary hydrogen of the gas compartment in filling battery directly catalyzed dose of chemical combination, its result reduces the oxygen cycle efficiency of inside battery, thus make the increase that anode polarization reduces and negative pole polarizes, reduce the corrosion of legal grid, the oxygen lost during inner loop can not lose from battery, these oxygen directly can be combined to water again by catalyst, and be retained in inside battery, Catalytic Oxygen compounding techniques makes battery avoid dehydration and floating current is reduced.
But how arranging catalyst in lead acid accumulator is suitably insoluble problem always.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of safe catalysis valve of lead acid accumulator, thinks that the setting of catalyst in lead acid accumulator provides a kind of good and mode easily.For this reason, the present invention is by the following technical solutions: it comprises valve body, the upper part hollow of described valve body, the Pressure safety device of lead acid accumulator is installed in described upper part, the lower part of described valve body arranges the mount pad of catalyst, arranges the air-vent be communicated with Pressure safety device between mount pad and Pressure safety device; Be provided with the installing hole of catalyst in described mount pad, catalyst is set in installing hole, the arranged outside filter course of catalyst; Described catalyst is the catalyst that hydrogen catalyzed oxygen reaction produces water.
On the basis adopting technique scheme, the present invention also can adopt following further technical scheme:
Described Pressure safety device includes burst disk and lower burst disk, has airway in valve body between upper burst disk and lower burst disk.
The aperture of described burst disk is minimum is 20 μm, and maximum diameter of hole is 50 μm, and porosity is 50%-80%.
The upper end of described valve body upper part has the installation passage of upper burst disk, described valve body is provided with the mounting groove of upward opening in the bottom of the installation passage of upper burst disk, described air pressure erecting device is provided with burst disk bracing frame, upper burst disk bracing frame is arranged on mounting groove, upper burst disk is placed on burst disk bracing frame, upper burst disk is stamped exhaust gas inside lid, and exhaust gas inside covers also has upper exhaust cap, the top of described safe catalysis valve is provided with modifies lid, and described modification lid is connected with valve body.
Upper part and the lower part of described valve body are threaded, and described air vent hole is in lower part, and described installing hole aperture is downward.
The lower end of the upper part of described valve body has the installation passage of lower burst disk and has the positioning step of lower burst disk, and described positioning step faces down.
The material of described lower part is polyphenylene oxide PPE or polyphenylene thioether PPS, and the installation hole wall at described installation aperture place curves inwardly described filter course to be fixed on and installs in aperture.
The material of described burst disk is polytetrafluoroethylene PTFE, polypropylene PP or polythene PE.
Contact-making surface between different parts in valve body has silicon layer, silicone grease layer or petrolatum layer.
Catalyst carrier is active carbon, alundum (Al2O3), foamy carbon, graphite felt or porous ceramic, and specific area is 700m
2/ g---1100m
2/ g, particle diameter is 0.2mm-2mm; Catalyst is Metal Palladium, and content is between the 0.1%-10% of vehicle weight, and catalyst content adopts gradient distribution, and more by the inside of installing hole, content is larger;
Filter course is divided into inside and outside two parts, and inner filtration layer is the active carbon containing metal alkaline material, and outer filter layers is the porous material of high temperature resistant type, and pore size control is at 1 μm--and 50 μm.
Owing to adopting technical scheme of the present invention, present invention employs extremely reasonable manner and structure and catalyst is set in lead acid accumulator, the structure that arranges of the design feature of valve and the structure of Pressure safety device and catalyst is organically merged, its assembling and easy for installation, do not affect the internal structure of storage battery, and the long service life of catalyst, service efficiency is high, the oxygen lost during lead acid accumulator inner loop can not be lost from storage battery, these oxygen can fully and easily touch catalyst, with hydrogen-gasified synthetic water, and be retained in inside battery, make battery dehydration reduction corresponding to floating current.
Accompanying drawing explanation
Fig. 1 is the cutaway view of embodiment provided by the present invention.
Fig. 2 is the floating current comparison diagram of application lead acid accumulator of the present invention and the lead acid accumulator not possessing catalyst.Top line display wherein does not possess the floating current of the lead acid accumulator of catalyst, the floating current of bottom line display application lead acid accumulator of the present invention.
Fig. 3 is the dehydration comparison diagram of application lead acid accumulator of the present invention and the lead acid accumulator not possessing catalyst.Top line display wherein does not possess the dehydration of the lead acid accumulator of catalyst, the dehydration of bottom line display application lead acid accumulator of the present invention.
Embodiment
With reference to accompanying drawing 1.The present invention includes valve body 1, upper part 11 hollow of described valve body, installs the Pressure safety device of lead acid accumulator in described upper part, can discharge in time with the gas in the timely storage battery when the pressure in storage battery exceedes safety value.The lower part 12 of described valve body 1 arranges the mount pad 2 of catalyst, arranges the air vent hole 13 be communicated with Pressure safety device between mount pad 2 and Pressure safety device; Be provided with the installing hole 20 of catalyst in described mount pad 2, the catalyst that hydrogen catalyzed oxygen reaction produces water is arranged in installing hole 20, the arranged outside filter course of catalyst; Valve body is arranged on battery cap.
When internal storage battery gas atmosphere is less than safety value, internal storage battery gas can generate water by catalyst reaction and return in battery electrolyte, when internal storage battery air pressure exceedes safety value, Pressure safety device can be opened automatically, and internal storage battery gas discharges storage battery by air-vent 13 through Pressure safety device.Under storage battery is in normal pressure or in pressure increase process, catalyst is in the below of Pressure safety device, can " richly endowed by nature " maximal efficiency and probability ground contact with hydrogen with oxygen and fully play catalytic reaction effect, the oxygen of internal storage battery and hydrogen can fully be reacted, reduce outside vent flow, battery dehydration and floating current are reduced most possibly.
Described Pressure safety device includes burst disk 31 and lower burst disk 32, has airway 14 in valve body 1 between upper burst disk 31 and lower burst disk 32.
The aperture of described burst disk is minimum is 20 μm, and maximum diameter of hole is 50 μm, and porosity is 50%-80%; Material is polytetrafluoroethylene PTFE, polypropylene PP or polythene PE etc.
Pressure safety device ventilation flow rate controls at 300-600ml/min.This burst disk design of the present invention, except can effectively prevent interior liquid sulfuric acid and acid mist from being discharged except storage battery by Pressure safety device, can also stop hydrogen to spread to internal storage battery at outside generation naked light and naked light by burst disk.Pressure safety device has applicable ventilation flow rate and can reduce internal pressure rapidly and don't can reduce explosion-proof performance.The valve opening valve closing pressure (safety value) of Pressure safety device can be controlled in 20KPa-30KPa; Contact-making surface between different parts in Pressure safety device and the contact-making surface of described parts and valve body have silicon layer, silicone grease layer or petrolatum layer, can give the sealing property of Pressure safety device excellence, prevent extraneous gas from entering internal storage battery.
The upper end of described valve body upper part of the present invention has the installation passage 15 of upper burst disk 31, described valve body is provided with the mounting groove 16 of upward opening in the bottom of the installation passage 15 of upper burst disk 31, described air pressure erecting device is provided with burst disk bracing frame 33, upper burst disk bracing frame 33 is arranged on mounting groove 16, upper burst disk 31 is placed on burst disk bracing frame 33, upper burst disk is stamped exhaust gas inside lid 34, exhaust gas inside lid 34 also has upper exhaust cap 35, the top of the safe catalysis valve of the present invention is provided with modifies lid 36, and described modification lid 36 is connected with valve body.The effect of described exhaust gas inside lid 34 is fixed in valve body 11 by burst disk 31, and the effect of described upper exhaust cap 35 internal gas is derived valve body and prevents from modifying lid and external dust blocking gas passage.
In the present embodiment, upper part 11 and the lower part 12 of described valve body are threaded, and to facilitate the installation of lower burst disk, and the position enabling itself and upper burst disk be in the best coordinates, and described air vent hole 13 is in lower part, and described installing hole 20 aperture is downward.
The lower end of the upper part 11 of described valve body has the installation passage 17 of lower burst disk 32 and has the positioning step 18 of lower burst disk, and described positioning step 18 faces down.
The material of described lower part is the high temperature resistant type fire proofing such as polyphenylene oxide PPE or polyphenylene thioether PPS, effectively prevent from producing heat melts valve body in catalytic process, can be heated during fabrication again simultaneously and the installation hole wall at described installation aperture place be curved inwardly described filter course is fixed on to install in aperture, with convenient for assembly, guarantee the sealing of filter course and installation hole wall simultaneously.Catalyst carrier is the materials such as active carbon, alundum (Al2O3), foamy carbon, graphite felt and porous ceramic, and specific area is 700m
2/ g---1100m
2/ g, particle diameter is 0.2mm-2mm, and these carriers have good specific area and good permeability.Catalyst is Metal Palladium, and content is between the 0.1%-10% of vehicle weight, and catalyst content adopts gradient distribution, more by the inside of installing hole, content is larger, makes hydrogen and oxygen compound on all carriers equably, effectively prevents local reaction excessive velocities from producing a large amount of heat of crossing and burns valve body.As shown in the figure, in the present embodiment, catalyst carrier is divided into three layer 41 from outside to the inner side in hole, 42,43, the catalyst content in layer 41,42,43 increases progressively successively.
In the present invention, filter course is divided into inside and outside two parts 51,52, and inner filtration layer 52 is the active carbon containing metal alkaline material, as containing copper, iron, nickel, potassium etc., can effectively adsorb or in and hydrogen sulfide, prevent catalyst poisoning, extending catalyst useful life etc.Outside filter course is the porous material of high temperature resistant type, as hydrophobic materials such as foamy carbon, polytetrafluoroethylene PTFE, graphite, pore size control is at 1 μm--and 50 μm, effectively prevent acid mist from entering catalytic inner, prevent internal-external liquid lock gas exchanges, prevent hydrogen and oxygen from producing naked light and controlling atmosphere exchange rate.
With reference to Fig. 2,3, the present invention is applied in after on lead acid accumulator, can see from lead acid accumulator high-temperature test data, lead acid accumulator floating current decline 30%-50%, lead acid accumulator fluid loss reduces 50%-70%, and the present invention has a significant effect to preventing lead acid accumulator thermal runaway, dehydration etc.
Claims (4)
1. the safe catalysis valve of a lead acid accumulator, it is characterized in that it comprises valve body, the upper part hollow of described valve body, the Pressure safety device of lead acid accumulator is installed in described upper part, the lower part of described valve body arranges the mount pad of catalyst, arranges the air vent hole be communicated with Pressure safety device between mount pad and Pressure safety device; Be provided with the installing hole of catalyst in described mount pad, catalyst is set in installing hole, the arranged outside filter course of catalyst; Described catalyst is the catalyst that hydrogen catalyzed oxygen reaction produces water;
Described Pressure safety device includes burst disk and lower burst disk, has airway in valve body between upper burst disk and lower burst disk;
The aperture of described burst disk is minimum is 20 μm, and maximum diameter of hole is 50 μm, and porosity is 50%-80%;
Contact-making surface between different parts in valve body has silicon layer, silicone grease layer or petrolatum layer;
The upper end of described valve body upper part has the installation passage of upper burst disk, described valve body is provided with the mounting groove of upward opening in the bottom of the installation passage of upper burst disk, described Pressure safety device is provided with burst disk bracing frame, upper burst disk bracing frame is arranged on mounting groove, upper burst disk is placed on burst disk bracing frame, upper burst disk is stamped exhaust gas inside lid, and exhaust gas inside covers also has upper exhaust cap, the top of described safe catalysis valve is provided with modifies lid, and described modification lid is connected with valve body;
Upper part and the lower part of described valve body are threaded, and described air vent hole is in lower part, and described installing hole aperture is downward;
The lower end of the upper part of described valve body has the installation passage of lower burst disk and has the positioning step of lower burst disk, and described positioning step faces down.
2. the safe catalysis valve of a kind of lead acid accumulator as claimed in claim 1, it is characterized in that the material of described lower part is polyphenylene oxide PPE or polyphenylene thioether PPS, the installation hole wall at described installation aperture place curves inwardly described filter course to be fixed on and installs in aperture.
3. the safe catalysis valve of a kind of lead acid accumulator as claimed in claim 1, is characterized in that the material of described burst disk is polytetrafluoroethylene PTFE, polypropylene PP or polythene PE.
4. the safe catalysis valve of a kind of lead acid accumulator as claimed in claim 1, it is characterized in that catalyst carrier is active carbon, alundum (Al2O3), foamy carbon, graphite felt or porous ceramic, specific area is 700m
2/ g---1100m
2/ g, particle diameter is 0.2mm-2mm; Catalyst is Metal Palladium, and content is between the 0.1%-10% of vehicle weight, and catalyst content adopts gradient distribution, and more by the inside of installing hole, content is larger;
Filter course is divided into inside and outside two parts, and inner filtration layer is the active carbon containing metal alkaline material, and outside filter course is the porous material of high temperature resistant type, and pore size control is at 1 μm--and 50 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210321438.0A CN102800831B (en) | 2012-09-03 | 2012-09-03 | Safety catalyzing valve for lead-acid storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210321438.0A CN102800831B (en) | 2012-09-03 | 2012-09-03 | Safety catalyzing valve for lead-acid storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102800831A CN102800831A (en) | 2012-11-28 |
| CN102800831B true CN102800831B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210321438.0A Active CN102800831B (en) | 2012-09-03 | 2012-09-03 | Safety catalyzing valve for lead-acid storage battery |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341359B (en) * | 2013-07-22 | 2015-04-15 | 哈尔滨工业大学 | Foam carbon-loaded palladium nanocrystal hydrogen eliminating catalyst for Pb-C (pallium-carbon) battery |
| KR101600037B1 (en) | 2014-06-26 | 2016-03-07 | (주)테크윈 | A ballast water treatment system |
| JP6576297B2 (en) * | 2016-05-02 | 2019-09-18 | 日本ゴア株式会社 | Catalyst parts and vent filters, vent plugs and lead-acid batteries including the same |
| CN109935917A (en) * | 2017-12-15 | 2019-06-25 | 广州丰江实业有限公司 | A kind of hydrogen oxygen recombination bolt high temperature gelled lead acid battery |
| US20220013819A1 (en) * | 2018-11-26 | 2022-01-13 | W. L. Gore & Associates G.K. | Catalyst device for lead-acid battery, and lead-acid battery |
Citations (4)
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|---|---|---|---|---|
| CN2556794Y (en) * | 2002-06-28 | 2003-06-18 | 长沙丰日电气集团有限公司 | Hydrogen-removing safety valve for valve control type sealed lead acid battery |
| 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 |
| CN1986035A (en) * | 2005-12-22 | 2007-06-27 | 中国石油化工股份有限公司 | Automobile exhaust gas purifying process |
| CN202977567U (en) * | 2012-09-03 | 2013-06-05 | 浙江南都电源动力股份有限公司 | Safety catalytic valve for lead-acid storage battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6660425B2 (en) * | 1998-12-14 | 2003-12-09 | William E. M. Jones | Catalyst design for VRLA batteries |
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2012
- 2012-09-03 CN CN201210321438.0A patent/CN102800831B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2556794Y (en) * | 2002-06-28 | 2003-06-18 | 长沙丰日电气集团有限公司 | Hydrogen-removing safety valve for valve control type sealed lead acid battery |
| 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 |
| CN1986035A (en) * | 2005-12-22 | 2007-06-27 | 中国石油化工股份有限公司 | Automobile exhaust gas purifying process |
| CN202977567U (en) * | 2012-09-03 | 2013-06-05 | 浙江南都电源动力股份有限公司 | Safety catalytic valve for lead-acid storage battery |
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|---|---|
| CN102800831A (en) | 2012-11-28 |
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| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 311305, No. 72, landscape Avenue, Qingshan Town, Ling'an Economic Development Zone, Zhejiang, Hangzhou Applicant after: Nandu Electric Power Co., Ltd., Zhejiang Applicant after: Hangzhou Narada Battery Co., Ltd Applicant after: Hangzhou Nandu Energy Technology Co., Ltd. Address before: 310013 No. 50 Bauhinia Road, Zhejiang, Hangzhou Applicant before: Nandu Electric Power Co., Ltd., Zhejiang Applicant before: Hangzhou Narada Battery Co., Ltd Applicant before: Hangzhou Nandu Energy Technology Co., Ltd. |
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 311305 Ling'an Qingshan Lake Street landscape Avenue, No. 72, No. Applicant after: Nandu Electric Power Co., Ltd., Zhejiang Applicant after: Hangzhou Narada Battery Co., Ltd Applicant after: Hangzhou Nandu Energy Technology Co., Ltd. Address before: 311305, No. 72, landscape Avenue, Qingshan Town, Ling'an Economic Development Zone, Zhejiang, Hangzhou Applicant before: Nandu Electric Power Co., Ltd., Zhejiang Applicant before: Hangzhou Narada Battery Co., Ltd Applicant before: Hangzhou Nandu Energy Technology Co., Ltd. |
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